Patent Publication Number: US-2021180381-A1

Title: Hinge blade structure

Description:
RELATED APPLICATIONS 
     This application is a continuation of International Patent Application PCT/CN2019/097023, filed on Jul. 22, 2019, which claims priority to Chinese patent application number 201810813535.9, filed on Jul. 23, 2018, and Chinese patent application number 201810812063.5, filed on Jul. 23, 2018. International Patent Application PCT/CN2019/097023, Chinese patent application number 201810813535.9, and Chinese patent application number 201810812063.5 are incorporated herein by reference. 
    
    
     FIELD OF THE DISCLOSURE 
     The present disclosure relates to a connection structure, and in particular relates to a hinge blade structure. 
     BACKGROUND OF THE DISCLOSURE 
     The application number 201210430998.X in the Chinese patent database discloses a positioning hinge device, which cannot adjust the positioning force and self-closing of a hinge blade structure at a preset positioning angle, and the positioning hinge device cannot make the hinge blade structure have a full positioning function. That is, the positioning hinge device cannot make the hinge blade structure have a position function from being in an opening angle (such as 1 degree) to a fully opening angle (such as 180 degrees). An abutment spring in a mounting groove of the positioning hinge device can not adjust its stored elastic force. If the above-mentioned positioning hinge is used frequently, the spring&#39;s stored elastic force will be weakened, which will weaken the spring against the positioning bead, and relatively make the positioning hinge lose its positioning function. The applicability is limited. 
     BRIEF SUMMARY OF THE DISCLOSURE 
     In order to overcome deficiencies of the existing techniques, the present disclosure provides a hinge blade structure to solve the technical problems of the background. 
     A first technical solution of the present disclosure is as follows. 
     A hinge blade structure comprises two hinge blades, a connection sleeve, a fixed rod, a screw sleeve, a plug, a damping positioning pull rod, and an air cylinder. Each hinge blade of the two hinge blades comprises a shaft sleeve and a blade secured to an outer side of the shaft sleeve, the shaft sleeves of the two hinge blades at least partially encompass the connection sleeve to enable the two hinge blades to be configured to rotate relative to each other, the fixed rod and the plug are connected to an inner side of the connection sleeve, the fixed rod is separated from the plug, the fixed rod and the plug are respectively and relatively secured to the shaft sleeve of one hinge blade of the two hinge blades, the screw sleeve is disposed in the connection sleeve and disposed between the fixed rod and the plug, the fixed rod comprises a screw rod, the screw rod is screwed to the screw sleeve, the damping positioning pull rod and the air cylinder are both disposed in the connection sleeve and disposed between the fixed rod and the plug, the air cylinder is relatively secured to the plug, the damping positioning pull rod is relatively secured to the screw sleeve, the damping positioning pull rod is slidably connected to an inner side of the air cylinder along a length direction of the connection sleeve, the damping positioning pull rod and the air cylinder cooperate to define an air chamber, the air cylinder comprises an air chamber vent through hole and an air inlet, and a resistance force generated between the air chamber and the damping positioning pull rod achieves positioning. 
     A second technical solution of the present disclosure is as follows. 
     A hinge blade structure comprises two hinge blades, a connection sleeve, a fixed rod, a screw sleeve, a plug, a damping positioning pull rod, an air cylinder, and an adjusting base. Each hinge blade of the two hinge blades comprises a shaft sleeve and a blade secured to an outer side of the shaft sleeve, the shaft sleeves of the two hinge blades at least partially encompass the connection sleeve to enable the two hinge blades to rotate relative to each other, the fixed rod and the plug are connected to an inner side of the connection sleeve, the fixed rod is separated from the plug, the fixed rod and the plug are respectively and relatively secured to the shaft sleeve of one hinge blade of the two hinge blades, the screw sleeve is disposed in the connection sleeve and disposed between the fixed rod and the plug, the fixed rod comprises a screw rod, the screw rod is screwed to the screw sleeve, the damping positioning pull rod and the air cylinder are both disposed in the connection sleeve and disposed between the fixed rod and the plug, the air cylinder is relatively secured to the plug, the damping positioning pull rod is relatively secured to the screw sleeve, the damping positioning pull rod is slidably connected to an inner side of the air cylinder along a length direction of the connection sleeve, the damping positioning pull rod and the air cylinder cooperate to define an air chamber, the air cylinder comprises an air chamber vent through hole, the adjusting base is movably connected to the plug, a size of a gap disposed between the adjusting base and the air chamber vent through hole, a resistance force between the air chamber and the damping positioning pull rod, and positioning force of the hinge blades are configured to be adjusted due to a relative movement between the adjusting base and the air chamber. 
     Compared with the existing techniques, the technical solution has the following advantages. 
     The present disclosure further comprises a damping positioning pull rod and an air cylinder. The damping positioning pull rod and the air cylinder cooperate to form an air chamber. The air cylinder is provided with an air chamber vent through hole and an air inlet. Positioning is generated through resistance of the air chamber relative to the damping positioning pull rod so as to achieve in a whole process. 
     The size of the gap between the adjusting base and the air chamber vent through hole, the resistance of the air chamber relative to the damping positioning pull rod and the positioning force of the hinge in a preset position can be adjusted through the relative movement of the adjusting base and the air cylinder. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  illustrates an exploded perspective view of a hinge of Embodiment 1. 
         FIG. 2  illustrates a perspective view of an upper circlip of Embodiment 1. 
         FIG. 3  illustrates a perspective view of a screw hole of a screw sleeve of Embodiment 1. 
         FIG. 4  illustrates a perspective view of a screw hole thread of the screw sleeve of Embodiment 1. 
         FIG. 5  illustrates a perspective view of a damping positioning pull rod of Embodiment 1. 
         FIG. 6  illustrates a perspective view of a plug of Embodiment 1. 
         FIG. 7  illustrates a perspective view of a second sealing rubber ring of Embodiment 1. 
         FIG. 8  illustrates a perspective view of a third sealing rubber ring of Embodiment 1. 
         FIG. 9  illustrates a sectional perspective view of the plug of Embodiment 1. 
         FIG. 10  illustrates an exploded perspective view of a hinge of Embodiment 2. 
         FIG. 11  illustrates a sectional perspective view of an air cylinder of a plug of Embodiment 2. 
         FIG. 12  illustrates an exploded perspective view of a hinge of Embodiment 3. 
         FIG. 13  illustrates a sectional perspective view of an air cylinder of a plug of Embodiment 3. 
         FIG. 14  illustrates an exploded perspective view of a hinge of Embodiment 4. 
         FIG. 15  illustrates an exploded perspective of a hinge of a vehicle of Embodiment 5. 
         FIG. 16  illustrates a sectional perspective view of a high hermetical hinge of Embodiment 6. 
         FIG. 17  illustrates a perspective view of a vertical protruding seat of a second hinge blade of Embodiment 6. 
         FIG. 18  illustrates a perspective view of a first hinge blade of Embodiment 6. 
         FIG. 19  illustrates a perspective view of a plug of Embodiment 6. 
         FIG. 20  illustrates an exploded perspective of a hinge of Embodiment 7. 
         FIG. 21  illustrates an exploded perspective of a hinge of Embodiment 8. 
         FIG. 22  illustrates a sectional perspective view of a damping positioning pull rod of Embodiment 8. 
         FIG. 23  illustrates an exploded perspective view of a hinge of a vehicle of Embodiment 9. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     Embodiment 1 
     A structure configured to adjust a positioning force of a blade of a hinge in a whole process directions can be disposed in a shaft sleeve of a butterfly hinge, an H-shaped hinge, a son-and-mother shaped hinge, a flag-shaped hinge, and any particular hinge, so that the hinge can be disposed in any door and window. The door hinge blades and the door blade can adjust a positioning force of the hinge blades positioned between a 1° opening angle of the hinge blades and a 180° opening angle of the hinge blades. 
     Referring to  FIGS. 1-9 , the hinge comprises a first hinge blade  10  and a second hinge blade  20 ; the first hinge blade  10  is provided with a first blade  12  and two first shaft sleeves  11  secured to the first blade  12  at intervals, and the first blade  12  comprises an opening; the second hinge blade  20  is disposed with a second shaft sleeve  21  and a second blade  22  secured to the second shaft sleeve  21 ; the second shaft sleeve  21  is disposed between the two first shaft sleeves  11  disposed on upper and lower sides, the second blade  22  cooperates with the opening of the first blade  12  to define an up and down alignment, so that the two first shaft sleeves  11  are configured to rotate relative to an axis of the second shaft sleeve  21  in a preset rotation angle of the first blade  12 . 
     The hinge also comprises a connection sleeve  50 , a fixed rod  30 , a screw sleeve  40 , a damping positioning pull rod  01 , an air cylinder  07 , a first bearing  100 , a second bearing  200 , a third bearing  300 , a plug  60 , and an adjusting base  70 . 
     The fixed rod  30  comprises a transmission rod  42 , an upper annular circlip groove  333  and a lower annular circlip groove  323  are circumferentially disposed on an outer ring of the transmission rod  42 , a swivel ring  41  cooperates with and is secured to an inner ring  112  of an upper shaft sleeve of the two first shaft sleeves  11 , and the swivel ring  41  is disposed on an upper end of the inner ring  112  of the two first shaft sleeves  11 . In a specific structure: an outer ring of the swivel ring  41  is circumferentially disposed with a swivel ring roll wreath  416 , and the swivel ring roll wreath  416  is encompassed in the inner ring  112  of the upper shaft sleeve due to interference fit, so that the swivel ring  41  is secured to the inner ring  112  of the upper shaft sleeve; a cut plate side  420  of a side surface of the outer ring of the transmission rod  42  cooperates with a cut plate side  410  of an inner ring of an inner hole of the swivel ring  41 , and a fixed screw  98  is screwed to and passes through shaft sleeve screw hole  99  of the upper shaft sleeve and is then locked to and passes through the swivel ring  41  and is then locked to and is secured to the transmission rod  42 , so that the two first shaft sleeves  11 , the swivel ring  41 , and the transmission rod  42  are secured together, and an axial direction and a distance position of a wheelbase that the screw sleeve  40  axially slides and moves relative to the screw rod  32  up and down is positioned and restricted. 
     The transmission rod  42  passes through a bearing inner hole  111  of the first bearing  100  and a swivel ring inner annular hole  411  of the swivel ring  41 , and is rotatably connected to the bearing inner annular hole  111 , the swivel ring inner annular hole  411 , and an inner ring  501  of the connection sleeve  50  without movement. An upper circlip  303  cooperates with and is disposed on the upper annular circlip groove  333  of the fixed rod  30 , is snapped in the upper annular circlip groove  333 , and abuts an end surface of the first bearing  100 ; a lower circlip  313  cooperates with and is disposed on the lower annular circlip groove  323  of the fixed rod  30 , is snapped in the lower annular circlip groove  323 , and abuts the other end surface of the first bearing  100 . The fixed rod  30  is prevented from sliding and moving up and down and moving due to the upper circlip  303  and the lower circlip  313 ; the swivel ring  41  is secured to a portion of the transmission rod  42  extending out of the first bearing  100 . 
     A portion of the plug  60  extending out of the connection sleeve  50  cooperates with and passes through a shaft sleeve inner ring (i.e., an inner hole of the inner ring  112  of a lower shaft sleeve of the two first shaft sleeves  11 ), so that the plug  60  is connected to the two first shaft sleeves  11 , and the screw sleeve  40  is separated from the plug  60 ; the screw sleeve  40 , the damping positioning pull rod  01 , and the adjusting base  70  are disposed between the fixed rod  30  and the plug  60  disposed in the shaft sleeves (i.e., the two first shaft sleeves  11  and the second shaft sleeve  21 ) of the two hinge blades (i.e., the first hinge blade  10  and the second hinge blade  20 ). The connection sleeve  50  cooperates with and is encompassed in a shaft sleeve inner ring  202  of the second shaft sleeve  21  and the shaft sleeve inner rings  112  of the two first shaft sleeves  11 ; a bearing inner ring  111  (i.e., the bearing inner hole  111 ) of the first bearing  100  is configured to rotate, while a bearing base  109  of the first bearing  100  is encompassed in and is secured to an end of the connection sleeve  50  without rotation and movement. A bearing inner hole  222  of the second bearing  200  rotatably cooperates with and encompasses the connection sleeve  50 , a bearing protruding ring  201  of an end surface of the second bearing  200  cooperates with and is encompassed in the hole of the inner ring  112  of the upper shaft sleeve, the end surface of the second bearing  200  is configured to abut a circumferential end surface  110  of the two first shaft sleeves  11 , and the other end surface of the second bearing  200  is configured to abut a shaft sleeve circumferential end surface  202  of the second shaft sleeve  21 ; a bearing inner hole  3331  of the third bearing  300  rotatably cooperates with and encompasses the plug  60 , and a protruding ring  301  of an end surface of the third bearing  300  cooperates with and is encompassed in the hole the inner ring  112  of the lower shaft sleeve, and one end surface of the third bearing  300  is configured to abut a circumferential end surface  110  of the two first shaft sleeves  11 , and the other end surface of the third bearing  300  is configured to abut the shaft sleeve circumferential end surface  202  of the second shaft sleeve  21 , so that the first hinge blade  10  can rotate about an axis of the second hinge blade  20  more smoothly. 
     The transmission rod  42  is rotatably connected to an inner side of the connection sleeve  50  without movement. The swivel ring  41  disposed in the two first shaft sleeves  11  is secured to the fixed rod  30  to prevent an axial movement of the fixed rod  30 . The inner ring  501  of the connection sleeve  50  comprises a third flange  53 , and the third flange  53  is configured to abut an inner side of an annular groove  520  of the plug  60  in the connection sleeve  50  to enable the third flange  53  to be embedded in the annular groove  520  of the plug  60  in the connection sleeve  50 , so that the plug  60  is secured to the third flange  53  in the connection sleeve  50 . A portion of the plug  60  extending out of the inner ring  501  of the connection sleeve  50  passes through the hole of the inner ring of the two first shaft sleeves  11 . The fixed rod  30  comprises a screw rod  32 . A screw thread  302  of screw rod  32  of the fixed rod  30  cooperates and is screwed to a screw hole thread  322  of the screw sleeve  40 , which is configured to limit a distance position that the damping positioning pull rod  01  slides and moves downward along an axis of an air chamber  009  in the air cylinder  07 , so that the blades of the hinge can be positioned in a whole process. 
     An end of the air cylinder  07  is disposed with the air chamber  009 , and a bottom end surface of an inner ring of the air chamber  009  comprises an air chamber vent through hole  007 ; an adjusting base protruding valve  700  is disposed on a front annular end surface of the adjusting base  70 . A diameter and a taper degree of the adjusting base protruding valve  700  protrudes from large to small and cooperates with the air chamber vent through hole  007 . The adjusting base protruding valve  700  of the adjusting base  70  is configured to cooperate with the adjusting base  70 , so that the adjusting base  70  is configured to be adjusted and rotated by external force to correspond with the plug  60 , the air cylinder  07 , the damping positioning pull rod  01 , and the screw sleeve  40 , so as to adjust a gap size between the adjusting base protruding valve  700  of the adjusting base  70  and the air chamber vent through hole  007 , to adjust a discharge volume and an intake volume of the air chamber vent through hole  007 , to adjust a pressure of an air source, a value of a compression ratio pressure of the high pressure suction-expiration air source, and a pressure intensity in the air cylinder  07  and the air chamber  009  generated by the damping positioning pull rod  01  hermetically disposed in the air cylinder  07  and the air chamber  009 , to adjust the pressure of the air source, the value of the compression ratio pressure of the high pressure suction-expiration air source, and the pressure intensity in the air cylinder  07  and the air chamber  009  generated by the damping positioning pull rod  01  and the first sealing rubber ring  005  of the damping positioning pull rod  01 , to adjust a frictional damping positioning force generated by the first sealing rubber ring  005  of the damping positioning pull rod  01  in the air cylinder  07  and the air chamber  009 , to adjust the hinge blades to be positioned between a 1° opening angle of the hinge blades and a 180° opening angle of the hinge blades and the adjusting base  70  can adjust a positioning force of the hinge blades at any angle. For example, to enable the hinge blades to be positioned between the 1° opening angle of the hinge blades and the 180° opening angle of the hinge blades, and to enable the first blade  12  to be positioned in the whole process. 
     An annular mounting groove  071  is circumferentially disposed on the outer ring of the adjusting base protruding valve  700  of the adjusting base  70 , and a hole  073  of an inner ring of a fourth sealing rubber ring  072  of the adjusting base protruding valve  700  cooperates with and encompasses an inner side of an ring mounting groove  071  of the adjusting base  70 , the fourth sealing rubber ring  072  further extends out of the annular mounting groove  071  of the adjusting base  70 , and a diameter of the fourth sealing rubber ring  072  is larger than a diameter of the air chamber vent through hole  007 , the adjusting base protruding valve  700  is configured to be hermetically slidably connected to and abut the inner side of the air chamber vent through hole  007 , so that the adjusting base protruding valve  700  of the adjusting base  70  can cooperate with the adjusting base  70 . Compressed gas of the gas source extruded by high pressure generated due to the damping positioning pull rod  01  and the first sealing rubber ring  005  sliding and moving up and down in the air cylinder  07  and the air chamber  009  is discharged through the air chamber vent through hole  007  and a plug vent through hole  6111 ; and compressed gas of the air source sucked by high pressure suction generated due to the damping positioning pull rod  01  and the first sealing rubber ring  005  sliding and moving up and down in the air cylinder  07  and the air chamber  009  is sucked into the air chamber  009  through the plug vent through hole  6111  and the air chamber vent through hole  007  at high pressure. The air chamber vent through hole  007  and the plug vent through hole  6111  are mutually in communication and are in communication with the air source. Left and right sides of a circumferential periphery of the inner ring and the outer ring of the air cylinder  07  are aligned and are disposed with sliding rod through holes  033 , and an end of the damping positioning pull rod  01  is disposed with a positioning pull rod connection rod  102 , and a circumferential periphery of an outer ring of the positioning pull rod connection rod  102  is disposed with a positioning pull rod through hole  08 , and a sliding rod  03  passes through the sliding rod through holes  033  of the air cylinder  07  and the positioning pull rod through hole  08 , so that the sliding rod  03  is configure to be secured to the positioning pull rod through hole  08  of the damping positioning pull rod  01 . However, the sliding rod  03  abuts the sliding rod penetration holes  033  disposed on the left and right sides of the circumferential periphery of the inner ring and the outer ring of the air cylinder  07 , positions of the sliding rod through holes  033  disposed on the left and right sides of the circumferential periphery of the inner ring and the outer ring of the air cylinder  07  are aligned, so that the sliding rod  03  is configured to position and limit distance, size, and the axial direction and the distance position of the wheelbase that the screw sleeve  40  and the damping positioning pull rod  01  slide and move up and down to be not changed, to enable the axial direction and the distance position of the wheelbase that the screw sleeve  40  drives the damping positioning pull rod  01  to axially slide and move relative to the screw rod  32  of the fixed rod  30  to be not changed, to enable the damping positioning pull rod  01  and the first sealing rubber ring  005  of the damping positioning pull rod  01  to axially slide and move in the air cylinder  07  and the air chamber  009  to generate a strong frictional damping positioning force in the air cylinder  07  and the air chamber  009 , and to enable the first blade  12  of the first hinge blade  10  to be positioned in all way. An end of the air cylinder  07  is secured to the plug  60 . 
     An inner diameter of the inner ring of the air cylinder  07  cooperates with diameters of protruding rings  19  disposed on two ends of the damping positioning pull rod  01 , and a diameter of the first sealing rubber ring  005  of the damping positioning pull rod  01  is larger than a diameter of the inner ring of the air cylinder  07 . The first sealing rubber ring  005  further extends out of a pull rod annular mounting groove  05 , and further extends out of the diameters of the protruding rings  19  disposed on two ends of the damping positioning pull rod  01 , so that the first sealing rubber ring  005  disposed on the damping positioning pull rod  01  is configured to strongly abut a wall of the inner ring of the air cylinder  07 , the damping positioning pull rod  01  is configured to hermetically and slidably abut the inner side of the air cylinder  07 , the damping positioning pull rod  01  and the screw sleeve  40  axially slide and move relative to the screw rod  32  of the fixed rod  30 , the damping positioning pull rod  01  generates frictional damping force and frictional resistance force in the air cylinder  07 , and the first blade  12  is entirely configured to be positioned during an opening process. 
     The damping positioning pull rod  01  protrudes to define a positioning pull rod connection rod  102 , and a first protruding ring  19  disposed on the damping positioning pull rod  01  and a second protruding ring  19  screwed on a pull rod screw hole  81  of the positioning pull rod connection rod  102  are configured to define the pull rod annular mounting groove  05 , and after a sealing rubber ring inner hole  055  of the first sealing rubber ring  005  cooperates with and encompasses the pull rod annular mounting groove  05  of the positioning pull rod connection rod  102 , a screw rod  091  of the second protruding ring  19  is screwed in the pull rod screw hole  81 , so that the screw rod  091  of the second protruding ring  19  is configured to be secured to the positioning pull rod connection rod  102  of the damping positioning pull rod  01 . 
     One end surface of the damping positioning pull rod  01  is disposed with a connecting screw rod  02 , and the connecting screw rod  02  is adapted to be screwed into a screw sleeve screw hole  406  of the screw sleeve  40 , so that the damping positioning pull rod  01  is secured to the screw sleeve  40  to enable the damping positioning pull rod  01  and the screw sleeve  40  to axially slide and move relative to the screw rod  32 . The other end surface of the damping positioning pull rod  01  is disposed with a positioning pull rod connection rod  102 . 
     A front surface of an end of the positioning pull rod connection rod  102  comprises the pull rod screw hole  81 , and the sealing rubber ring inner hole  055  of the sealing rubber ring  005  cooperates with and encompasses the pull rod annular mounting groove  05  of the positioning pull rod connection rod  102 , one end surface of the second protruding ring  19  is disposed with the screw rod  091 , so that an annular groove disposed between the protruding ring  19  disposed on the one end surface of the damping positioning pull rod  01  and the protruding ring  19  disposed on the other end surface of the damping positioning pull rod  01  is configured to define the pull rod annular mounting groove  05 , and the protruding ring  19  disposed on the one end surface of the damping positioning pull rod  01  and the protruding ring  19  disposed on the other end surface of the damping positioning pull rod  01  are configured to enable the first sealing rubber ring  005  to be secured and limit a displacement and a separation of the first sealing rubber ring  005 . A circumferential periphery of the outer ring of the first sealing rubber ring  005  comprises a rubber ring through hole  555 , and the sliding rod  03  cooperates with the rubber ring through hole  555 . 
     A circumferential periphery of the outer ring of the screw sleeve  40  comprises an annular mounting groove  401  and an annular mounting groove  400 ; a second sealing rubber ring inner hole  422  of a second sealing rubber ring  402  cooperates with and encompasses the annular mounting groove  401 , a diameter of the second sealing rubber ring  402  further protrudes out of the annular mounting groove  401 , and the diameter of the second sealing rubber ring  402  is larger than the inner diameter of the inner ring of the connection sleeve  50 , so that the screw sleeve  40  is configured to hermetically and slidably abut the wall of the inner ring  501  of the connection sleeve; and a third rubber ring inner hole  421  of a third sealing rubber ring  411  cooperates with and encompasses the annular mounting groove  400 , a diameter of the third sealing rubber ring  411  further extends out of the annular mounting groove  400 , so that the screw sleeve  40  is configured to hermetically and slidably abut the wall of the inner ring  501  of the connection sleeve, the second sealing rubber ring  402  disposed in the annular mount groove  401  of the screw sleeve  40  and the third sealing rubber ring  411  disposed in the annular mounting groove  400  are configured to cooperate with the screw sleeve  40  disposed in the connection sleeve  50  to axially slide and move relative to the screw rod  32 . 
     When the two hinge blades rotate relative to each other, the screw sleeve  40  and the screw rod  32  disposed in the two shaft sleeves can rotate relative to each other, so that the screw sleeve  40  and the damping positioning pull rod  01  are configured to axially slide and move relative to the screw rod  32  within a preset positioning angle of the hinge rotation. The first blade  12  is opened from a right side by external force, so that the first blade  12  is configured to drive the transmission rod  42  disposed in the two first shaft sleeves  11  and the screw rod  32  disposed in the second shaft sleeve  21  to rotate. However, as needed, a size and a tooth pitch of a screw rod reverse screw thread of the fixed rod  30  cooperates with a screw sleeve reverse screw thread of the screw sleeve  40 , parameters should be selected to cooperate with each other, the axial direction and the distance position of the wheelbase that the screw sleeve  40  and the damping positioning pull rod  01  axially slide and move relative to the screw rod  32  is preset and restricted, so that the screw sleeve  40  and the damping positioning pull rod  01  are configured to axially slide downward relative to the screw rod  32  within a preset rotation positioning angle of the hinge blade, the damping positioning pull rod  01  and the first sealing rubber ring  005  disposed on the damping positioning pull rod  01  enters into the air chamber  009  disposed in the air cylinder  07 . At the same time, the damping positioning pull rod  01  and the first sealing rubber ring  005  disposed on the damping positioning pull rod  01  are disposed in the air camber  009  disposed in the air cylinder  07  to generate relatively large frictional damping positioning force, so as to enable the first blade  12  to generate a positioning force in the whole process. At the same time, the first blade  12  is opened at any angle between a 1° positioning angle and a 180° positioning angle to be positioned, at the same time, the adjusting base  70  can be adjusted and be rotated to adjust the gap between the adjusting base protruding valve  700  and the air chamber vent through hole  007  due to the external force, to enable the first blade  12  of the first hinge blade  10  opened at from 1° angle to 180° angle to generate positioning force. 
     In some embodiments, one end of the inner ring  501  and the outer ring of the connection sleeve  50  protrude to define a first flange  51 , and the inner ring  501  and the first flange  51  are configured to abut an inner side of the annular groove  101  of the first bearing  100  in the connection sleeve  50 , so that the inner ring  501  and the first flange  51  are configured to be embedded in the annular groove  101  of the first bearing  100  in the connection sleeve  50 , and the first bearing  100  and the first flange  51  are secured to the connection sleeve  50  and are disposed in the connection sleeve  50 . An upper end of the connection sleeve  50  protrudes inward to define a second flange  52 , and the second flange  52  is configured to abut an annular groove  1002  of the first bearing  100 , so that the second flange  52  is configured to be embedded in the annular groove  1002  of the first bearing  100  in the inner ring  501  of the connection sleeve  50 , the first bearing  100  and the second flange  52  are configured to be secured in the connection sleeve. An outer peripheral wall of the connection sleeve  50  is concave to define an inner ring  501 , and a lower end of the connection sleeve  50  protrudes inward to define the third flange  53 , and the third flange  53  abuts the annular groove  520  of the plug  60 , so that the third flange  53  is configured to be embedded in the annular groove  520  of the plug  60  in the inner ring  501  of the connection sleeve  50 , the plug  60  and the third flange  53  are configured to be connected to the inner side of the connection sleeve  50 . A size parameter of the diameter of the connection sleeve  50  cooperates with the shaft sleeve inner holes (i.e., the inner rings  112 ) of the two first shaft sleeves  11  and the shaft sleeve inner hole  23  of the second shaft sleeve  21 , the connection sleeve  50  passes through the shaft sleeve inner holes  112  and the shaft sleeve inner hole  23 , so that the connection sleeve  50 , the two first shaft sleeves  11 , and the second shaft sleeve  21  can be secured together. The screw thread  702  of the adjusting base  70  cooperates with and is screwed to the plug  60  to rotate the adjusting base  70  to control an axis position of the adjusting base  70 . The screw rod  32  cooperates with and is screwed to the screw sleeve  40  to limit the distance position that the damping positioning pull rod  01  axially slides and moves downward in the air cylinder  07  and the air chamber  009 , so that the first blade  12  of the first hinge blade  10  is configured to be positioned at a preset positioning angle position. For example, when the hinge blades are disposed below a preset positioning angle position of 80 degrees, the first blade  12  of the first hinge blade  10  can generate a relatively weak positioning force. 
     The plug  60  comprises a plug through screw hole  701 , and the screw thread  702  of the adjusting base  70  cooperates with and is screwed in the plug though screw hole  701 , and hermetically abuts an inner side of the air chamber vent through hole  007 , so that the adjusting base protruding valve  700  of the adjusting base  70  is configured to abut the air chamber vent through hole  007  disposed in the air chamber  009 , the adjusting base  70  is configured to be adjusted by external force to rotate to cooperate with the plug  60 , the air cylinder  07 , the damping positioning pull rod  01 , and the screw sleeve  40 , the adjusting base protruding valve  700  of the adjusting base  70  is configured to limit the exhaust volume of the air chamber vent through hole  007 , the adjusting base  70  is configured to be adjusted by the external force to rotate to cooperate with the plug  60  and to cooperate with the air cylinder  07 , the air chamber  009 , the damping positioning pull rod  01 , and the screw sleeve  40 , a gap size between the adjusting base protruding valve  700  and the air chamber vent through hole  007  is configured to be adjusted. A plug vent through hole  611  disposed on a circumferential periphery of the inner ring and the outer ring of the plug  60  is aligned with a second shaft sleeve vent through hole  6112  disposed on a circumferential periphery of the inner ring and the outer ring of the second shaft sleeve  21 , and the plug vent through hole  6111 , the second shaft sleeve vent through hole  6112 , and the air chamber vent through hole  007  are in communication with each other. 
     When the first blade  12  is opened from a left side by the external force, the first blade  12  is configured to drive the transmission rod  42  and the screw rod  32  to rotate, so that the screw sleeve  40  and the damping positioning pull rod  01  are configured to slide downward relative to the screw rod  32 . At the same time, the damping positioning pull rod  01  and the first sealing rubber ring  005  slide and move downward in the air chamber  009  disposed in the air cylinder  07 , the first sealing rubber ring  005  generates a relatively great frictional damping positioning force in the air chamber  009 , the first blade  12  is further configured to generate a relatively great self-positioning force. At the same time, the first blade  12  is opened to a hinge blade preset positioning angle from 1° to 180°, the adjusting base  70  is configured to be adjusted by external force to rotate to cooperate with the plug  60  and to cooperate with the air cylinder  07 , the air chamber  009 , the damping positioning pull rod  01 , and the screw sleeve  40 , the size of the gap between the adjusting base protruding valve  700  of the adjusting base  70  and the air chamber vent through hole  007  is configured to be adjusted , the hinge blades are positioned at any angle position between a 1° opening angle of the hinge blades and a 180° opening angle of the hinge blades, the adjusting base  70  is always configured to adjust a positioning force of the hinge blades, the hinge blades are configured to be positioned between the 1° opening angle of the hinge blades and the 180° opening angle of the hinge blades, so that the first blade  12  of the first hinge blade  10  disposed in between a 1° angle and a 180° positioning angle of a preset positioning angle of the hinge blades to enable the first blade  12  of the first hinge blade  10  to generate a self-positioning function. 
     Embodiment 2 
     Embodiment 2 differs from Embodiment 1 in that: referring to  FIGS. 10 and 11 , the circumferential peripheries of the inner ring and the outer ring of the bottom of the air chamber  009  comprise the air chamber vent through hole  0992 ; diameter sizes and positions of the air chamber vent through hole  0992 , a connection sleeve vent through hole  099  disposed on the circumferential peripheries of the inner ring and the outer ring of the connection sleeve  50 , a second shaft sleeve vent through hole  0991  disposed on a circumferential periphery of inner and outer rings of the second shaft sleeve  21  are consistently aligned. Values of the diameter sizes of the air chamber vent through hole  0992 , the connection sleeve vent though hole  099 , and the second shaft sleeve vent through hole  0991  are smaller. Therefore, the first blade  12  is opened from the left side by the external force, the first blade  12  is configured to drive the transmission rod  42  and the screw rod  32  to rotate, the screw sleeve  40  and the damping positioning pull rod  01  are configured to slide axially relative to the screw rod  32 . At the same time, when the damping positioning pull rod  01  and the first sealing rubber ring  005  slide and move in the air cylinder  07  and the air chamber  009 , the damping positioning pull rod  01  and the first sealing rubber ring  005  are configured to generate greater frictional damping positioning force in the air cylinder  07  and the air chamber  009  to enable the first blade  12  to generate a stronger self-positioning force. The values of diameter sizes of the air chamber vent through hole  0992 , the connection sleeve vent though hole  099 , and the second shaft sleeve vent through hole  0991  are larger. Therefore, the first sealing rubber ring  005  disposed on the damping positioning pull rod  01  generates a weaker frictional damping positioning force in the air cylinder  07  and the air chamber  009 , the first blade  12  of the first hinge blade  10  is configured to generate a weaker self-positioning force. The plug  60  of Embodiment  2  does not comprises the plug through screw hole  701  of the adjusting base  70  and the adjusting base  70 . The high pressure extrusion compressed gas generated due to the damping positioning pull rod  01  and the first sealing rubber ring  005  sliding and moving in the air cylinder  07  and the air chamber  009  is exhausted through the air chamber vent through hole  0992  and the connection sleeve vent through hole  099 , and the second shaft sleeve vent through hole  0991 ; the high pressure suction compressed gas generated due to the damping positioning pull rod  01  and the first sealing rubber ring  005  sliding and moving in the air cylinder  07  and the air chamber  009  is sucked through the second shaft sleeve vent through hole  0991 , the connection sleeve vent through hole  099 , and the air chamber vent through hole  0992 . The air chamber vent through hole  0992 , the connection sleeve vent through hole  099 , and the second shaft sleeve vent through hole  0991  are in communication with each other and are in communication with the air source in high pressure. 
     Embodiment 3 
     Embodiment differs from Embodiment 2 in that: referring to  FIGS. 12 and 13 , the circumferential peripheries of the inner ring and the outer ring of the air chamber  009  does not comprise an air chamber vent through hole  0992 , and the circumferential peripheries of the inner ring and the outer ring of the air cylinder  07  does not comprises the positioning vent through hole  008 . The circumferential periphery of the outer ring of the damping positioning pull rod  01  comprises the pull rod annular mounting groove  05 , and after the inner hole  055  of the first sealing rubber ring  005  cooperates with and encompasses the inner side of the pull rod annular mounting groove  05  of the positioning pull rod connection rod  102 , the screw rod  091  of the protruding ring  19  is screwed in the pull rod screw hole  81 , so that the screw rod  091  of the protruding ring  19  is configured to be secured to the positioning pull rod connection rod  102  of the damping positioning pull rod  01 . The first sealing rubber ring  005  further extends out of the pull rod annular mounting groove  05  and further extends out of the diameters of the protruding rings  19  disposed on the two ends of the damping positioning pull rod  01 . Therefore, the first sealing rubber ring  005  is configured to strongly abut the wall of the inner side of the air cylinder  07 , the damping positioning pull rod  01  is configured to hermetically and slidably abut the air cylinder  07 , the screw sleeve  40  is configured to drive the damping positioning pull rod  01  to axially slide and move relative to the screw rod  32 , the damping positioning pull rod  01  and the first sealing rubber ring  005  are configured to generate a strong frictional damping force and a strong frictional resistance force in the air cylinder  07 , and the first blade  12  is configured to be positioned from the 1° opening angle of to the 180° opening angle. 
     Embodiment 4 
     Embodiment 4 differs from Embodiment 3 in that: referring to  FIG. 14 , the second hinge blade  20  comprises the second shaft sleeve  21  and the second blade  22  secured to the outer side of the second shaft sleeve  21 , the second shaft sleeve  21  is disposed on a lower half portion of the second blade  22 ; the first hinge blade  10  comprises a first shaft sleeve  11  and a first blade  12  disposed on an outer side of the first shaft sleeves  11 . The first shaft sleeve  11  is disposed on an upper half portion of the first blade  12 ; the first shaft sleeve  11  cooperates with and is connected to the second shaft sleeve  21  and is aligned with the second shaft sleeve  21  up and down. Therefore, the first shaft sleeve  11  is configured to rotate relative to the axis of the second shaft sleeve  21  in the preset rotation angle of the first blade  12  of the first hinge blade  10 . 
     The first shaft sleeve  11 , the swivel ring  41 , and the transmission rod  42  are connected together to enable the first shaft sleeve  11  and the swivel ring  41  to be configured to position and limit the axial direction and the distance position of the wheelbase that the screw sleeve  40  axially slides and moves relative to the screw rod  32  of the fixed rod  30 . The inner side of the connection sleeve  50  comprises the second flange  52 , and the second flange  52  is configured to abut the annular groove  520  of the plug  60  in the connection sleeve  50 . Therefore, the second flange  52  is configured to be embedded in the annular groove  520  of the plug  60  in the connection sleeve  50 , and the plug  60  and the second flange  52  are configured to be secured in the connection sleeve  50 . A fifth bearing  500  is configured to rotatably encompass the connection sleeve  50 . A bearing protruding ring  5001  of one end of the fifth bearing  500  rotatably is encompassed in the inner ring  112  and the other end surface of the circumferential periphery of the end surfaces  100  of the circumferential periphery of the first shaft sleeve  11  is configured to abut an end surface  2002  of a circumferential periphery of inner and outer rings of the second shaft sleeve  21 . The first shaft sleeve  11  and the second shaft sleeve  21  are disposed side to side to enable the first blade  12  to be configured to rotate relative to the second shaft sleeve  21 . The connection sleeve  50  cooperates with and is encompassed in the shaft sleeve inner hole  23  of the second shaft sleeve  21  to enable the connection sleeve  50  to be configured to be secured in the shaft sleeve inner hole  23  of the second shaft sleeve  21 . 
     The fixed rod  30 , the screw sleeve  40 , the damping positioning pull rod  01 , the air cylinder  07 , the air chamber  009 , the first bearing  100 , and the adjusting base  70  are disposed between the fixed rod  30  and the plug  60  of the connection sleeve  50  of the two hinge blades. 
     The first sealing rubber ring  005  encompasses the inner side of the annular mounting groove  05 , and the first sealing rubber ring  005  further extends out of the annular mounting groove  05  to enable the damping positioning pull rod  01  to be configured to hermetically and slidably abut the inner sides of the air cylinder  07  and the air chamber  009 . Therefore, the damping positioning pull rod  01  and the screw sleeve  40  is configured to axially slide and move relative to the screw rod  32  of the fixed rod  30 , the damping positioning pull rod  01  hermetically disposed in the air cylinder  07  and air chamber  009  is configured to generate strong frictional damping force and frictional resistance force in the cylinder  07  and air chamber  009 . When the damping positioning pull rod  01  hermetically disposed in the air cylinder  07  and air chamber  009  axially slides and moves downward in the air cylinder  07  and air chamber  009  and slides over the air cylinder vent through hole  008 , at this time, the damping positioning pull rod  01  hermetically disposed in the air cylinder  07  and the air chamber  009  is disposed in the air chamber  009  of the air cylinder  07 . At this time, the damping positioning pull rod  01  and the first sealing rubber ring  005  disposed on the damping positioning pull rod  01  is disposed in the air chamber  009  of the air cylinder  07  to generate large frictional damping positioning force. Therefore, the first blade  12  of the first hinge blade  10  generates greater positioning force. At the same time, the adjusting base  70  is adjusted to rotate by the external force to cooperate with the plug  60  and to cooperate with the air cylinder  07 , the air chamber  009 , the damping positioning pull rod  01 , and the screw sleeve  40 . Therefore, the size of the gap disposed between the adjusting base protruding valve  700  and the air chamber vent through hole  007  is configured to be adjusted, and the value of the positioning force of the hinge blades at any positioning angle is configured to be adjusted. When the hinge blades are not more than the preset positioning angle position of 90° or 80°, a stored energy of a spring  91  is configured to be released at the same time. Therefore, one end of the spring  91  is configured to strongly abut a circumferential end surface of the screw sleeve  40 , and the other end of the spring  91  is configured to strongly abut a front annular end surface of the air cylinder  07 , convex screw thread of the screw sleeve  40  is configured to slide and move upward relative to an axial direction of concave screw thread of the screw rod  32 . At the same time, the first sealing rubber ring  005  disposed on the damping positioning pull rod  01  plays frictional damping function in the air cylinder  07 . At the same time, the third sealing rubber ring  411  disposed on the screw sleeve  40  and the second sealing rubber ring  402  disposed on the screw sleeve further plays frictional damping function in the connection sleeve  50 . Therefore, the first blade  12  can achieve a damping automatic close function. The high pressure extrusion compressed gas generated due to the damping positioning pull rod  01  and the first sealing rubber ring  005  sliding and moving downward in the air cylinder  07  and the air chamber  009  is discharged through the air chamber vent through hole  007 , the plug vent through hole  6111  of the plug  60 , the connection sleeve vent through hole  611 , and the second shaft sleeve vent through hole  6112 ; and the high pressure suction compressed air generated due to the damping positioning pull rod  01  and the first sealing rubber ring  005  sliding and moving upward in the air cylinder  07  and the air chamber  009  is sucked from the second shaft sleeve vent through hole  6112 , the connection sleeve vent through hole  611 , the plug vent through hole  6111 , and the air chamber vent through hole  007  in high pressure. 
     When the two hinge blades rotate relative to each other, the screw sleeve  40  and the screw rod  32  disposed in the two shaft sleeves are configured to rotate relatively, so that the screw sleeve  40  and the damping positioning pull rod  01  are configured to axially slide and move relative to the screw rod  32 . The first blade  12  is opened from the left side by the external force. Therefore, the first blade  12  is configured to drive the transmission rod  42  and the screw rod  32  to rotate, the axial direction and the distance position of the wheelbase that the screw sleeve  40  and the damping positioning pull rod  01  axially slide and move relative to the screw rod  32  is preset and restricted due to the screw threads of the screw rod  32  and the screw sleeve  40 , and the screw sleeve  40  and the damping positioning pull rod  01  are configured to axially slide downward relative to the screw rod  32  within the preset rotation angle of the hinge blades. When the damping positioning pull rod  01  slides over the positioning vent through hole  008  of the air cylinder  07 , at this time, the damping positioning pull rod  01  is disposed in the air chamber  009  disposed in the air cylinder  07 . At the same time, the damping positioning pull rod  01  generates a stronger frictional damping positioning force in the air chamber  009  disposed in the air cylinder  07  to enable the first blade  12  to generate a stronger positioning force. At the same time, when the first blade  12  is opened to the preset positioning angle position the hinge blades within 80° to 180°, at the same time, the adjusting base  70  is configured to adjust the value of the positioning force of the first blade  12  within the preset positioning angle position; when the first blade  12  needs to be closed and is closed to 80° position by the external force, that is, not more than the preset positioning angle position of the first blade  12 , and when the first blade  12  is closed by the external force, the first blade  12  is configured to drive the swivel ring  41  and the transmission rod  42  disposed in the first shaft sleeve  11  and the screw rod  32  disposed in the first shaft sleeve  11  to rotate, so as to drive the screw sleeve  40  and the damping positioning pull rod  01  to slide and move upward and to slide over the positioning vent through hole  008  of the air cylinder  07  , that is, no more than a starting point in the preset positioning angle position of the first blade  12 , gas will enter into the air cylinder  07  from the positioning vent through hole  008  of the second shaft sleeve  21  and the positioning vent through hole  008  of the connection sleeve  50 . Therefore, the damping positioning pull rod  01  will lose all atmospheric pressure in the air cylinder  07 , and at the same time, the damping positioning pull rod  01  will lose more positioning force in the air cylinder  07 , and the first sealing rubber ring  005  and the second sealing rubber ring  006  disposed on the damping positioning pull rod  01  still have a slight frictional damping function in the air cylinder  07 . At the same time, the third sealing rubber ring  411  disposed on the screw sleeve  40  and the second sealing rubber ring  402  disposed on the screw sleeve  40  also have slight frictional damping function in the connection sleeve  50 . At the same time, when the external force driving the first blade  12  of the first hinge blade  10  is released, an elastic force the stored energy of the spring  91  is configured to be released at the same time, so that the first blade  12  can achieve a damping automatic close function. 
     The left and right sides of the circumferential periphery of the outer ring of the air cylinder  07  are aligned with each other to define the sliding rod through holes  033 , and the sliding rod through holes  033  are aligned with the positioning pull rod through hole  08  disposed on the damping positioning pull rod  01 . Therefore, the sliding rod  03  cooperates with and passes through the sliding rod through holes  033  of the air cylinder  07  and the positioning pull rod through hole  08 , the sliding rod  03  is configured to be encompassed in the damping positioning pull rod  01  and the sliding rod through holes  033  disposed on the left and right sides of the circumferential periphery of the outer ring of the air cylinder  07 . The positioning vent through hole  008  of the air cylinder  07 , the positioning vent through hole  008  of the connection sleeve  50 , and the positioning vent through hole  008  of the second shaft sleeve  21  are consistently aligned. 
     Embodiment 5 
     The hinge structure, for example, can be disposed in shaft sleeves of vehicle door hinge blades, vehicle door folded hinge blades, and carriage door hinge blades, and can be disposed in the vehicle door defining any peculiar shape and the carriage door defining any peculiar shape, etc. Therefore, the vehicle door defining any peculiar shape and the carriage door defining any peculiar shape, etc. defines a functional structure that is configured to adjust a value of a positioning force of vehicle door hinge blades at any angle and is configured to be positioned and to be automatically closed at any angle. Embodiment 5 differs from Embodiment 4 in that: referring to  FIG. 15 , the first hinge blade  10  is disposed with the first blade  12  and two first shaft sleeves  11  secured to the first blade  12  at intervals, and the first blade  12  of the first hinge blade  10  defines a folded blade shape (the first blade  12  of the first hinge blade  10  may not define the folded blade shape); A fixed base  90  comprises a fixed plate  29  and a vertical protruding base  25  fixed on the fixed plate  29 , an end surface of the vertical protruding base  25  is concave to define the second shaft sleeve  21 . The fixed base  90  is configured to define the second hinge blade  20 , and the fixed base  90  is also configured to define the fixed plate  29 . A wheelbase of the second shaft sleeve  21  cooperates with a gap distance disposed between the two first shaft sleeves  11 , and the second shaft sleeve  21  cooperates with and is disposed between the two first shaft sleeves  11 . Therefore, the two first shaft sleeves  11  are configured to rotate relative to the axis of the second shaft sleeve  21  within the preset positioning angle position of the first blade  12 ; the second blade  22  is secured to the fixed base  90 , and the fixed screw  98  passes through a screw hole of the fixed base  90  of the hinge blades and passes through a through hole of a vehicle door frame to enable the fixed base  90  of the hinge blades to be secured to the vehicle door frame. Therefore, vehicle door blades are configured to adjust the value of the positioning force of the hinge blades and to be automatically closed. When the two hinge blades rotate relative to each other, the screw sleeve  40  and the screw rod  32  are configured to rotate relative to each other in the two shaft sleeves, so that the screw sleeve  40  and the damping positioning pull rod  01  are configured to axially slide and move relative to the screw rod  32  within the preset positioning angle. 
     The first blade  12  is opened by the external force to enable the first blade  12  to drive the transmission rod  42  and the screw rod  32  to rotate. A straight-oblique pitch of convex teeth of three straight-oblique pitch of the screw rod  32  and a number structure disposed the convex teeth of straight-oblique pitch cooperates with straight-oblique pitch of convex teeth of three straight-oblique pitch of the screw sleeve  40  and a number structure disposed the convex teeth of straight-oblique pitch. Therefore, the axial direction and the distance position of the wheelbase that the screw sleeve  40  and the damping positioning pull rod  01  axially slides and moves relative to the screw rod  32  is preset and restricted. 
     Embodiment 6 
     The hinge structure, for example, is suitable to be disposed in shaft sleeves of hinges of high hermetic flat doors and convex doors to enable the hinges of the high hermetic flat door and the convex doors to adjust the positioning force in a whole process and the positioning force in a second half of the hinge blades are configured to be disposed on any of freezer door, refrigerator door, cold storage door, oven door, oven test equipment door, test box door, simulated environment test equipment door, mechanical equipment door, drying equipment door, soundproof door, special door, freshness-keeping warehouse door, tea-keeping warehouse door, civil engineering door, and a door page of any ship door, etc. Referring to  FIGS. 16-19 , Embodiment 6 differs from Embodiment 5 in that the first hinge blade  10  comprises a first shaft sleeve  11  and a first blade  12 . The first shaft sleeve  11  is disposed on an upper half portion of the first blade  12 , while the first shaft sleeve  11  cooperates with and is connected to the second shaft sleeve  21  and is aligned with the second shaft sleeve  21  up and down, so that the first shaft sleeve  11  is configured to rotate relative to the axis of the second shaft sleeve  21  within the preset positioning angle position of the first blade  12 . The connection sleeve  50  is connected to the inner sides of the first shaft sleeve  11  and the second shaft sleeve  21 ; the fifth bearing  500  is rotatably connected between the first shaft sleeve  11  and the second shaft sleeve  21  of the vertical protruding base  25 , the fifth bearing  500  further rotatably encompasses the outer side of the connection sleeve  50 , so that the first hinge blade  10  rotate more smoothly relative to the axis of the fixed base  90 . The first shaft sleeve  11  and the second shaft sleeve  21  of the vertical protruding base  25  are disposed side to side. Therefore, the first blade  12  of the first hinge blade  10  is configured to rotate relative to the second shaft sleeve  21  of the vertical protruding base  25 , and the hinge is configured to define a high hermetic hinge structure of the convex doors or the flat doors. 
     The adjusting base protruding valve  700  is disposed on the front annular end surface of the adjusting base  70 . The diameter of the air chamber vent through hole  007  cooperates with the diameter and the taper degree of the protruding valve of the adjusting base  70 . Therefore, the protruding valve of the adjusting base  70  is configured to cooperate with the adjusting base  70 , the adjusting base  70  is configured to be adjusted to rotate to correspond with the plug  60  and to cooperate with the air cylinder  07 , the air chamber  009 , the damping positioning pull rod  01 , and the screw sleeve  40 , and the adjusting base protruding valve  700  of the adjusting base  70  is configured to limit the discharge volume and the intake volume of the air chamber vent through hole  007 . 
     After the first sealing rubber ring  005  cooperates and encompasses the inner side of the pull rod annular mounting groove  05  of the positioning pull rod connection rod  102 , the screw rod  091  of the second protruding ring  19  is screwed in the pull rod screw hole  81 . The screw rod  091  of the second protruding ring  19  is secured to the positioning pull rod connection rod  102  of the damping positioning pull rod  01 , and the first sealing rubber ring  005  further extends out of the pull rod annular mounting groove  05  and also extends out of the diameters of the protruding rings  19  disposed on two ends of the damping positioning pull rod  01 . Therefore, the first blade  12  generates the positioning function during the opening process, the adjusting base  70  is configured to be adjusted to rotate to correspond with the plug  60  and to cooperate with the air cylinder  07 , the air chamber  009 , the damping positioning pull rod  01 , and the screw sleeve  40  by the external force, the size of the gap disposed between the adjusting base protruding valve  700  and the air chamber vent through hole  007  is configured to be adjusted. 
     The second end of the damping positioning pull rod  01  comprises the pull rod screw hole  81 , the first sealing rubber ring  005  cooperates and encompasses the pull rod annular mounting groove  05  of the positioning pull rod connection rod  102 . The screw rod  091  is disposed on a front edge of the front surface of the end of the second protruding ring  19 , and the screw rod  091  cooperates with and is screwed in the pull rod screw hole  81  of the screw rod  32 . Therefore, the screw rod  091  is secured to the positioning pull rod connection rod  102 , the damping positioning pull rod  01  defines the pull rod annular mounting groove  05 , the first sealing rubber ring  005  is secured, and a displacement and a disassembly of the first sealing rubber ring  005  is restricted. 
     The first end of the damping positioning pull rod  01  is disposed with a connection screw rod  02 , and the connecting screw rod  02  of the damping positioning pull rod  01  is screwed in the screw sleeve screw hole  406  of the screw sleeve  40  to enable the damping positioning pull rod  01  to be secured to the screw sleeve  40 . The sliding rod  03  is configured to be secured to the positioning pull rod through hole  08  of the damping positioning pull rod  01 , while the sliding rod  03  abuts the sliding rod through holes  033  disposed on the left and right sides of the circumferential periphery of the outer ring of the air cylinder  07 , the sliding rod through holes  033  disposed on the left and right sides of the circumferential periphery of the outer ring of the air cylinder  07  are aligned with each other. Therefore, the sliding rod  03  is configured to position and restrict the axial direction and the distance position of the wheelbase that the screw sleeve  40  and the damping positioning pull rod  01  slides and moves up and down to be not changed. The damping positioning pull rod  01  and the first sealing rubber ring  005  are configured to axially slide and move along in the air cylinder  07  and the air chamber  009  to generate strong damping positioning force due to strong friction. The first blade  12  generates stronger positioning force within the preset positioning angle position, when the hinge blades are positioned to be not more than the preset positioning angle position of 90° or 80°, the elastic force of the stored energy of the spring  91  is configured to be released to enable the first blade  12  to achieve an damping automatic close. 
     Embodiment 7 
     Embodiment 7 differs from Embodiment 1 in that: please refer to  FIG. 20 , an internal structure of the adjusting base  70  comprises an adjusting base discharge-intake hole  070 , and the adjusting base  70  is disposed with an adjusting base protruding valve  700 , the adjusting base protruding valve  700  is configured to hermetically and slidably abut the air chamber vent through hole  007  to enable the adjusting base protruding valve  700  to cooperate with the adjusting base  70 , so that the adjusting base  70  is configured to be adjusted to rotate to adjust the size of the gap disposed between the adjusting base protruding valve  700  and the air chamber vent through hole  007  by the external force. The circumference of the inner ring and the outer ring of the air cylinder  07  comprise the positioning vent through hole  008  (i.e., positioning through hole) of the air cylinder  07 . Before the damping positioning pull rod  01  slides through the positioning vent through hole  008 , gas in the air chamber  009  is discharged through the positioning vent through hole  008 . When the damping positioning pull rod  01  slides over the positioning vent through hole  008  of the air cylinder  07  (i.e., the positioning vent through hole  008  is sealed by the damping positioning pull rod  01 ) and then continues to downwardly slide toward and close to the air chamber vent through hole  007 , the damping positioning pull rod  01  in the air cylinder  07  and the air chamber  009  will highly compress and squeeze the gas source in the air chamber  009 , so that the gas source in the air chamber  009  will be discharged through the gap between the air chamber vent through hole  007  and the adjusting base vent through hole  070 . Before the damping positioning pull rod  01  upwardly or downwardly slides toward and close to the positioning vent through hole  008  in the air chamber  009 , at the same time, the adjusting base  70  is adjusted to rotate by the external force, the size of the gap disposed between the adjusting base protruding valve  700  and the air chamber vent through hole  007  is configured to be adjusted. In case that the gap disposed between the adjusting base protruding valve  700  of the adjusting base  70  and the air chamber vent through hole  007  is adjusted to be larger, the pressure of the air source, the value of the compression ratio pressure of the high pressure suction-expiration air source, and the pressure intensity in the air chamber  009  generated by the damping positioning pull rod  01  hermetically disposed in the air chamber  009  will be smaller. At the same time, upward resistance force and pulling force of the damping positioning pull rod  01  hermetically disposed in the air chamber  009  will be smaller in the air chamber  007 , and the positioning force of the first blade  12  of the first hinge blade  10  disposed on the preset positioning angle position will be smaller. In case that the gap disposed between the adjusting base protruding valve  700  and the air chamber vent through hole  007  is adjusted to be smaller, the pressure value of the air source, the compression ratio of high pressure suction-expiration air source, and the pressure intensity value of the air source in the air chamber  007  generated by the damping positioning pull rod  01  hermetically disposed in the air chamber  007 , and the pressure value of the air source, and the compression ratio of high pressure suction-expiration air source, and the pressure intensity in the air chamber  007  generated by the damping positioning pull rod  01  and the first sealing rubber ring  005  of the damping positioning pull rod  01  will be larger. At the same time, upward and downward resistance force and pulling force of the damping positioning pull rod  01  in the air chamber  007  hermetically disposed in the air chamber  007  is larger, and the positioning force of the first blade  12  of the first hinge blade  10  positioned at the preset positioning angle position is larger. When the damping positioning pull rod  01  slides upward in the air chamber  009  and slides over the positioning vent through hole  008 , at the same time, the first sealing rubber ring  005  disposed on the annular mounting groove  05  of the damping positioning pull rod  01  further extends out of the annular mounting groove  05 . Therefore, the damping positioning pull rod  01  is configured to hermetically and slidably abut the air cylinder  07  and the air chamber  009 , the damping positioning pull rod  01  is configured to generate strong frictional damping force and strong frictional resistance force in the air cylinder  07 , the damping positioning pull rod  01  and the screw sleeve  40  axially slide and move relative to the screw rod  32  of the fixed rod  30 , and the first blade  12  is configured to be positioned in the preset positioning angle position. For example, when the hinge blades are positioned at an angle being not more than the preset positioning angle position of 80°, the first blade  12  is configured to generate a weak positioning force. 
     Embodiment 8 
     Embodiment 8 differs from Embodiment 7 in that: referring to  FIGS. 21 and 22 , the second hinge blade  20  comprises the second shaft sleeve  21  and the second blade  22  secured to the outer side of the second shaft sleeve  21 , the second shaft sleeve  21  is disposed on a lower half portion of the second blade  22 ; the first hinge blade  10  comprises a first shaft sleeve  11  and a first blade  12  secured to the outer side of the first shaft sleeve  11 . The first shaft sleeve  11  is disposed on an upper half portion of the first blade  12 . The first shaft sleeve  11  is disposed on the second shaft sleeve  21  and is aligned with the second shaft sleeve  21  up and down. 
     Embodiment 9 
     Embodiment 9 differs from Embodiment 7 in that: referring to  FIG. 23 , the first hinge blade  10  comprises a first blade  12  and two first shaft sleeves  11 , and the first blade  12  of the first hinge blade  10  defines a folded blade shape (i.e., the first blade  12  of the first hinge blade  10  may not be disposed in the folded blade shape); a fixed base  90  comprises a fixed plate  29  and a vertical protruding base  25  secured to the fixed plate  29 . An end surface of the vertical protruding base  25  is concave to define the second shaft sleeve  21 . The fixed base  90  is configured to define the second hinge blade  20 , and the fixed base  90  is also configured to define the fixed plate  29 . A wheelbase of the second shaft sleeve  21  cooperates with a distance of the gap disposed between the two first shaft sleeves  11 , and the second shaft sleeve  21  cooperates with and is disposed between the two first shaft sleeves  11 . Therefore, the first shaft sleeve  11  is configured to rotate relative to the axis of the second shaft sleeve  21  within the preset positioning angle position of the first blade  12  of the first hinge blade  10 ; the second blade  22  of the second shaft sleeve  21  of the second hinge blade  20  is secured to the fixed base  90  of the hinge blades, the fixed screw  98  passes through and is secured to a screw through hole of the fixed base  90  of the hinge blades and a screw through hole of a vehicle door frame. Therefore, the fixed base  90  of the hinge blades are secured to the vehicle door frame, and vehicle door blades are configured to adjust the value of the positioning force of the hinge blades within the preset positioning angle position and to be automatically closed. When the two hinge blades rotate relative to each other, the screw sleeve  40  and the screw rod  32  disposed in the two shaft sleeves are configure to rotate relative to each other, so that the screw sleeve  40  and the damping positioning pull rod  01  are configure to axially slide and move downward and upward relative to the screw rod  32  within the preset positioning angle position of the hinge blades. 
     The aforementioned embodiments are merely some embodiments of the present disclosure, and the scope of the disclosure is not limited thereto. Thus, it is intended that the present disclosure cover any modifications and variations of the presently presented embodiments provided they are made without departing from the appended claims and the specification of the present disclosure.