Patent Publication Number: US-2021180361-A1

Title: Cylinder and control component

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of International Patent Application No. PCT/CN2018/094942 with a filing date of Jul. 9, 2018, designating the United States, now pending. The content of the aforementioned applications, including any intervening amendments thereto, are incorporated herein by reference. 
    
    
     TECHNICAL FIELD 
     The present invention relates to the field of locks, particularly, cylinders and control components. 
     BACKGROUND ART 
     Existing mechanical locks distinguish inside and outside by design to realize a distinction between private and public spaces, causing an identical operation on both sides not possible. The existing locks are designed with locking capabilities on one side and without on the other, and switching sides of operation is not allowed. Resulting in existing locks being provided with only one form of usage and an adjustment according to the actual situations is not allowed. 
     When such a locking device is applied in a shared area, with only unidirectional operations are allowed, is unfavorable to the sharing of the space. The subject door cannot be locked both ways when security and privacy is needed for either directions. For example, the double door security adopted in secured facilities such as banks, the implementation of such systems utilizing existing locks is complicated and the choice of the types of doors applicable is limited. 
     DISCLOSURE OF INVENTION 
     The object of the invention is to provide a cylinder and a control component, allowing equal operation on both sides. Each separate operation on both sides of the door does not disturb each other. With only one cylinder provided, a simple structure is provided and only one motor is required to control the switch on both sides, resulting in smaller volume and simpler structure. 
     The object is achieved by the following subject matter of the present invention: 
     A cylinder, comprising two mirror-symmetric cylinder mechanisms which jointly drive a latchbolt control ring; 
     wherein the latchbolt mechanism comprises an electric locking ring and a control pillar, wherein the control pillar passes through the rotation centers of the electric locking ring and the latchbolt control ring one after another; 
     wherein one of the two control rods is provided at its front surface with a rotatable shaft and the other is provided at the front surface with a counter bore, wherein the rotatable shaft is inserted into the counter bore and may rotate inside it, wherein the rotatable shaft passes movably through the latchbolt control ring and the latchbolt control ring may rotate around the rotatable shaft; 
     wherein each of the two control rods is equipped with a first control pin and a second control pin, wherein the first control pin and the second control pin circulates around the rotatable shaft, wherein the rotation direction, in which the first control pins controls the latchbolt control ring to unlatch, corresponds to the rotation direction, in which the second control pin controls the latchbolt control ring to unlatch; 
     wherein the first control pin passes in sequence through the electrical unlocking cam of the first mirror symmetric side, the mechanical locking ring of the first mirror symmetric side, the electrical locking ring of the first mirror symmetric side, the latchbolt control ring and the electrical locking ring of the second mirror symmetric side, wherein the electrical locking ring of the second side controls the unlocking and locking movement of the first control pin and the electrical locking ring of the first mirror symmetric side does not limit the unlatching movement of the first control pin; 
     wherein the second control pin passes in sequence through the electrical unlocking cam of the second mirror symmetric side, the mechanical locking ring of the second mirror symmetric side, the electrical locking ring of the second mirror symmetric side, the latchbolt control ring and the electrical locking ring of the first mirror symmetric side, wherein the electrical locking ring of the first mirrorside controls the unlocking and locking movement of the second control pin and the electrical locking ring of the second mirrorside does not limit the unlatching movement of the second control pin. 
     The cylinder is further defined in that the cylinder mechanism may comprise a mechanical locking ring, wherein the mechanical locking ring and the control pillar rotate synchronously. 
     The cylinder is further defined in that the cylinder mechanism may comprise an elastic resetting part, wherein the elastic resetting part and the control pillar form a rotational torque and the elastic resetting part tights the electrical locking ring in an opposite direction of unlatching. 
     The cylinder is further defined in that the first control pin and the second control pins have each a fan-shaped cross section, and the arc size of the fan shape is m; 
     wherein the electrical locking ring on the first mirrorside is provided with two arc-shaped through holes, the arc size of one arc-shaped through hole is 2 m and the arc size of the other arc-shaped through hole is 3 m; 
     in case that the first control pin matches the arc-shaped through hole of the electrical locking ring on the first mirrorside that has an arc size of 3 m, the first control pin may rotate at the same angle clockwise and anti-clockwise within the arc-shaped through hole of the electrical locking ring on the first mirrorside without rotating the electrical locking ring on the first mirrorside. When the first control pin in located in the middle of the arc-shaped through hole that has a 3 m arc size of the electrical locking ring on the first mirrorside, the electrical locking ring is in the standby state; 
     in case that the first control pin matches the arc-shaped through hole of the latchbolt control ring that has an arc size of 2 m, the latchbolt control ring rotates therewith when the first control pin rotates in a direction of unlatching and the latchbolt control ring does not rotate therewith when the first control ring rotates with an arc size of m in an opposite direction of unlatching; 
     in case that the first control pin matches the arc-shaped through hole of the electrical locking ring on the second mirrorside that has an arc size of 2 m, when the electrical locking ring ( 9 ) on the second mirrorside is locked, the first control pin cannot rotate in a direction of unlatching, but rotate with an arc size of m in an opposite direction of unlatching. 
     A control component, comprising a cylinder and a motored locking mechanism, wherein the motored locking mechanism limits the rotational displacement of the electrical locking ring. 
     The control component is further defined in that the motored locking mechanism comprises a motor, two groups of transmission mechanisms that are arranged mirror symmetrically and two output components that are arranged mirror symmetrically, wherein the two groups of transmission mechanisms are driven by a common motor and the transmission mechanisms transmit power of the motor to the output components; 
     wherein an output end of the motor is provided with a driving gear, wherein the driving gear is attached to an output shaft of the motor; 
     wherein the two groups of transmission mechanisms further comprise each an input gear, wherein both input gears are designed as frontend gears, and wherein rotational shafts of both input gears are parallel to each other; 
     wherein one driving gear is engaged with both input gears, wherein the two input gears are spaced 180 degrees from each other on the circumference of the input gear. 
     The control component is further defined in that the transmission mechanism further comprises a middle gear and an output gear; 
     Wherein the input gear drives the middle gear to rotate, and wherein the middle gear and the output gear engage with each other. 
     The control components are further defined in that the middle gear comprises a first middle gear, a second middle gear and a third middle gear, wherein the input gear and the first middle gear are fixed coaxially, and wherein the first middle gear, the second middle gear, the third middle gear and the output gears engage with each other in sequence. 
     The control component is further defined in that the first middle gear is provided with a rotatable shaft, wherein on the rotatable shaft is fixed attached with an overrunning clutch, wherein the overrunning clutch is attached with the first middle gear. 
     The control component is further defined in that the third middle gear puts output to the output gear unidirectionally. 
     The control component is further defined in that the rotatable shaft is provided on a locking shell, wherein an overrunning clutch is attached to the rotatable shaft, wherein the third middle gear is further attached to the overrunning clutch. 
     The control component is further defined in that the output component is designed as a motored jamming hook, wherein one end of the motored jamming hook is designed as a hook end and the other end is a pin shaft connecting end, wherein the motored jamming hook is provided with an oval through hole, wherein the motored jamming hook swings around the pin shaft connecting end; 
     wherein the front end of the output gear is provided with an eccentric pillar, which passes through the oval through holes; 
     wherein the eccentric pillar circulates around a central shaft of the output gear when the output gear rotates, wherein the eccentric pillar drives the motored jamming hook to swing. 
     The control component is further defined in that the motored locking mechanism is provided with two mirror-symmetric automatic unlocking rings, wherein both mirror-symmetric automatic unlocking rings are driven by the two transmission mechanisms; 
     wherein the cylinder is provided with two mirror-symmetric electrical unlocking cams, wherein the electric unlocking cams and the control pillar rotate synchronously; 
     wherein the automatic unlocking rings trigger the electric unlocking cams to rotate when an extruding portion of the electric unlocking cams falls on the rotation track of the extruding portion of the automatic unlocking rings. 
     Compared with the prior art, the present invention has the following effects: 
     1. A double-sided independent operation can be performed so that both sides can be used as a public space or a private space. 
     2. A locked-in movement through the motored locking system to the cylinder mechanism benefits the realization of an automatic control. Since the motored locking system can only repeat being in a state that one-side is driven and the other side not, drive is realized through the positive and negative rotation of one motor, which enables a smaller volume and a simple structure. 
     3. Besides the function of the locking and unlocking the cylinder mechanism, the motored locking system can control the mechanical locking mechanism to remove the limit on the rotatable latchbolt in a state that the latchbolt is manually locked, such that the lever returns to the standby state and a state of a lockout during power failure is avoided. 
     4. Functions are provided abundant while the structure is compact and adapted to a wide range of application. 
     5. A unidirectional transmission of gears is adopted, such that a structure reliability is not easy to be affected by vibration. 
     6. A common rotatable latchbolt is utilized while a double-sided separated operation is enabled, which not only simplifies structure, but also improves function. 
     7. The electric locking mechanism is transferred to a periodical swing by the rotation movement, which reduces control errors, makes control easier and more precise. 
    
    
     
       BRIEF DESCRIPTION OF DRAWING 
       The present invention is further described in conjunction with the non-limiting embodiments given by the figures, in which 
         FIG. 1  shows a schematic view of a lock according to one example of the present invention, 
         FIG. 2  shows a schematic view of a lock according to one example of the present invention when mounted on a door, 
         FIG. 3  shows schematically a disassembled view of a lock according to one example of the present invention, 
         FIG. 4  shows schematically an exploded view of a lock according to one example of the present invention, 
         FIG. 5  shows a schematic view of motions of the latchbolt mechanism E of a lock according to one example of the present invention, 
         FIG. 6  shows in a schematic view that the mechanical locking system D matches the cylinder mechanism B according to the present invention, 
         FIG. 7  shows in a process flow diagram an automatic unlocking when the motored locking system C matches the electrical unlocking cam  6 , 
         FIG. 8  shows a schematic view of the motored locking system C and the electrical locking rings  2 ,  9 , 
         FIG. 9  shows a schematic view of the cylinder mechanism B, 
         FIG. 10  shows in a schematic view that the latchbolt mechanism E matches the latchbolt accommodation mechanism according to another embodiment of the present invention, 
         FIG. 11  shows a schematic view of a latchbolt accommodating mechanism according to an embodiment of the present invention, 
         FIG. 12  shows a schematic view of a lock according to another embodiment of the present invention when mounted on a door; 
         FIG. 13  shows schematically a disassembled view of a lock according to another embodiment of the present invention, 
         FIG. 14  shows schematically an exploded view of a lock according to another embodiment of the present invention, 
         FIG. 15  shows a schematic view of motions of the latchbolt mechanism E of a lock according to another embodiment of the present invention, 
         FIG. 16  shows in a schematic view that the mechanical locking system D matches the cylinder mechanism B of a lock according to another embodiment of the present invention, 
         FIG. 17  shows in a schematic view that the latchbolt mechanism E matches the latchbolt accommodation mechanism of a lock according to another embodiment of the present invention, 
         FIG. 18  shows a perspective view of the latchbolt accommodation mechanism of a lock according to another embodiment of the present invention. 
     
    
    
     BEST MODE FOR CARRYING OUT THE INVENTION 
     In order that those skilled in the art can better understand the present invention, the subject matter of the present invention is further illustrated in conjunction with figures and embodiments. 
     First Embodiment 
       FIGS. 1 to 14  show a lock that does not distinguish between public and private spaces, comprising two sub locking systems having the same structure, which are arranged mirror symmetrically, wherein each of the two sub locking systems comprises a cylinder mechanism B, a mechanical locking mechanism D and a motored locking system C, wherein two cylinder mechanisms drive together a same latchbolt mechanism E to move. 
     As shown in  FIGS. 1 to 6 , the cylinder mechanism B comprises a latchbolt control ring  1 , mechanical locking rings  4 ,  10 , electrical locking rings  2 ,  9 , control pillars  8 ,  11 , an electrical unlocking cam  6  and an extension spring  3 . The latchbolt control ring  1  controls and matches the latchbolt mechanism E. The extension spring  3  and the control pillars  8 ,  11  form a rotating torque and the extension spring strains the electrical locking rings  2 ,  9  in a direction opposite to unlocking. Two cylinder mechanisms B share one latchbolt control ring  1  and the control pillars  8 ,  11  are positioned on one same axis and are coaxially rotatable, as shown in  FIG. 4 . 
     As shown in  FIG. 4 , the two control pillars  8 ,  11  have rectangular cross sections, and among the two control pillars  8 ,  11 , one of the control pillars  8  is provided at its front surface with a rotatable rod  81  and the other control pillar  11  is provided at its front surface with a counterbore, wherein the rotatable rod  81  can rotate in the counterbore after the rotatable rod  81  is inserted into the counterbore. The rotatable rod  81  passes through the latchbolt control ring  1  movably, wherein the latchbolt control ring  1  can rotate around the rotatable rod  81 . As shown in  FIG. 9 , N 1  is a movement trajectory of an automatic unlocking ring  21  and N 2  is a movement trajectory of an automatic unlocking ring  24 . Z 1  represents an unlocking state, Z 2  represents a standby state and Z 3  represents a state of locking the latchbolt manually. In  FIG. 9 , the lever rotates clockwise to change the state from Z 2  to Z 1 , and then the lever rotates anticlockwise to change the state to Z 3 . 
     As shown in  FIGS. 4 and 9 , each of the control pillars  8 ,  11  is attached to control sleeves  7 . The control pillars  8 ,  11  matches the control sleeves  7  through a spline, wherein each of the two control sleeves  7  is provided with a first control pin  71  and a second control pin  72  circulates around the rotatable rod  81  and the direction of the first control pin  71  that controls the latchbolt control ring  1  to unlock corresponds to the direction, in which the second control pin controls the latchbolt control ring to unlock. 
     As shown in  FIGS. 4 and 9 , the control sleeves  7  pass in sequence through the electrical unlocking cam  6  and the mechanical locking ring  4 , wherein the control sleeves  7  each matches the electrical unlocking cam  6  and the mechanical locking ring  4  through the spline. The first control pin  71  passes in sequence through the electrical unlocking cam  6 , the mechanical locking ring  4 , the electrical locking ring  2 , the latchbolt control ring  1  and the electrical locking ring  9 , wherein the electrical locking ring  2  remains unrotated while the first control pin  71  rotates with the lever. The second control pin  71  passes in sequence through the electrical unlocking cam  6 , the mechanical locking ring  10 , the electrical locking ring  9 , the latchbolt control ring  1  and the electrical locking ring  2 , wherein the electrical locking ring  9  remains unrotated while the second control pin  72  rotates with the lever and when the latchbolt control ring  1  rotates, the electrical locking ring  2  rotates. 
     As shown in  FIGS. 4 and 9 , the first control pin  71  and the second control pin  71  both have fan-shaped cross sections, and the arc size of the fan shape is m. The electrical locking ring  2  is provided with two arc-shaped through holes, the arc size of one arc-shaped through hole is 2 m and the arc size of the other arc-shaped through hole is 3 m, wherein the electrical locking ring  9  and the electrical locking ring  2  are mirror symmetrical. In case that the first control pin  71  matches the arc-shaped through hole of the electrical locking ring  2  that has an arc size of 3 m, the first control pin  71  may rotate at the same angle clockwise and anti-clockwise within the arc-shaped through hole of the electrical locking ring  2 . When the first control pin  71  in located in the middle of the arc-shaped through hole of the electrical locking ring  2  that has a 3 m arc size, the electrical locking ring  2  is in the standby state. In case that the first control pin  71  matches the arc-shaped through hole of the latchbolt control ring  2  that has an arc size of 2 m, when the first control ring  71  rotates in a direction of unlatching, the latchbolt control ring  1  rotates therewith and when the first control ring rotates with an arc size of m in an opposite direction of unlatching, the latchbolt control ring  1  does not rotate. In the case that the first control pin  71  matches the arc-shaped through hole of the electrical locking ring  9  that has an arc size of 2 m, when the electrical locking ring  9  is locked, the first control pin cannot rotate in a direction of unlatching, but rotates with an arc size of m in an opposite direction of unlatching. Since the second control pin  72  has a similar structure as the first control  71 , a repetition is waived here. 
     As shown in  FIGS. 4 and 9 , a working process is described: when the electrical locking ring  2  is locked, the control pillar  11  cannot perform movements in the direction of unlatching and when the electrical locking ring  9  is locked, the control pillar  8  cannot perform movements in the direction of unlatching. The control pillars  8 ,  11  control the latchbolt control ring  1  separately and do not interfere with each other. The mechanical locking ring  4  and the control pillar  8  rotate synchronously and the mechanical locking ring  10  and the control pillar  11  rotate synchronously. 
     As shown in  FIGS. 10 and 11 , the latchbolt mechanism E comprises a rotatable latchbolt  16  and a torsion spring  17 . The rotatable latchbolt  16  is provided with a rotatable pin rod, wherein the rotatable latchbolt  16  rotates around the rotatable pin rod. The torsion spring  17  controls the rotatable latchbolt  16  to stay in a closed state. The rotatable latchbolt  16  matches the latchbolt control ring  1 . The rotatable latchbolt  16  is a plate-shaped structure and has a semicircular form. The rotatable latchbolt  16  has a guiding groove  161  and the latchbolt control ring  1  is provided with a hook  1   a , which reaches inside the guiding groove  161 . Inside the guiding groove  161 , a jamming protuberance  1611  is provided, with which the hook  1   a  engages, and during the rotation of the rotatable latchbolt  16 , while the hook  1   a  and the jamming protuberance  1611  rotate relatively, they also slide relatively. 
     The non-joint surface of a jamming block  162  and the rotatable latchbolt  16  is an inclined plane or a curved surface and the joint surface is the front end. 
     In the case that the non-joint plane of the jamming block  162  and the rotatable latchbolt  16  is an inclined plane, there are at least three of the inclined planes and two of them are mirror symmetrically formed, and the other inclined plane connects the two mirrored symmetrically formed inclined planes. 
       FIGS. 10 and 11  show a latchbolt receiving mechanism that matches the latchbolt mechanism E, comprising a receiving chamber b 1  and a cover plate b 2 , wherein the chamber opening of the receiving chamber b 1  is covered by the cover plate b 2 . The cover plate b 2  is provided with a first through hole b 21  and a second through hole b 22 . The jamming block  162  is rotatably inserted into the first through hole b 21  and the rotatable latchbolt is inserted rotatably into the second through hole b 22 . The first through hole b 21  has a rectangular opening and the second through hole b 22  has a rectangular opening, wherein the first through hole b 21  and the second through hole b 22  form an inverse convex shape. 
     Working process is described as follows: In a locked state, the jamming block  162  lies inside the receiving chamber b 1 . The torsion spring  17  exerts pressure on the rotatable latchbolt  16  in such a way that the rotatable latchbolt  16  tends to rotate clockwise. The end of the hook  1   a  reaches into the guiding groove  161 . When the hook  1   a  interacts with the jamming block  162  and rotates clockwise, the rotatable latchbolt  16  rotates anticlockwise. The jamming block  162  rotates out of the through hole b 21  and into the door panel and thus pushes the door panel to achieve the door-opening movement. The above working process described above also applies to a required door-closing movement. 
     Characteristics of the latchbolt mechanism E are: 1. Movements of opening and closing are realized by rotating and thus an unintentional incorrect operation in an unnatural circumstance is avoided. 2. Due to the arrangement of the jamming block, the rotatable latchbolt is jammed after it rotatably enters into the receiving chamber. An opening movement can only be performed by rotating in an opposite direction, so that a more reliable locking state is realized. 3. A rotatable latchbolt with a plate structure has a wide width, which means that more shear force can be absorbed in the event of a forced breakthrough. 4. It applies for sliding doors, folding doors and so on. It is realized that setting of the latchbolt direction is avoided when switching the opening direction of a door, in other words, the operation to switch the opening direction of a door is equal in each of the two directions. 
       FIGS. 1 to 8  show a mechanical locking system D and an electrical locking system C. The mechanical locking system D matches the mechanical locking rings  4 ,  10 , wherein the electrical locking system C matches the electrical locking rings  2 ,  9 . 
     As shown in  FIGS. 1 to 8 , a mechanical locking position sensor A 1  is further included, which locates position of the mechanical locking system D. The mechanical locking rings  4 ,  10  are provided with a detective striped plate  5 , which is provided with a striped hole  51 , through which a pin shaft passes and the detective striped plate  5  can rotate around the pin shaft. The mechanical locking sensor A 1  adopts a mechanically triggered sensor, which is triggered at different position during movements, so that positioning is realized. 
     As shown in  FIGS. 1 to 8 , an electrical locking position sensor A 2  is further included, which locates the state position of the electrical locking system C. The electrical locking position sensor A 2  may adopt a mechanically triggered sensor. The electrical locking position sensor A 2  locates the position of a motored jamming hook  19 . 
     The mechanical locking position sensor A 1  and the electrical locking position sensor A 2  form together a sensor system A. 
     As shown in  FIGS. 1 to 8, 10, 11 and 12 , the mechanical locking system D comprises mechanical locking cams  12 ,  13 , a compressed spring  15 , a connecting sheet  14  and a mechanical locking housing  30 . The connecting sheet  14  is provided with a notch, in which the compressed spring  15  lies. 
     The compressed spring  15  lies inside the mechanical locking housing  30  and the connecting sheet  14  reaches partially movable into the mechanical locking housing  30 . One end of the connecting sheet contacts with the compressed spring  15 , and the other end connects with the mechanical locking cams  12 ,  13  through the pin shaft. The mechanical locking cams  12 ,  13  match the mechanical locking rings  4 ,  10  and are provided with jamming protuberances  121 ,  131 . The mechanical locking rings  4 ,  10  are provided with hooks, which match the jamming protuberances  121 ,  131 . The mechanical locking housing  30  is provided with two first jamming holes  30   a  and the two connecting sheets  14  are provided correspondingly with second jamming holes  14   a.    
     A working progress is described as follows: when the mechanical locking ring  4  rotates with an arc size of m in an opposite direction of unlatching, the mechanical locking ring  4  presses against the mechanical locking cam  12 , which compresses the compressed spring  15  and the end of the mechanical cam  12  rotates to the rotating track of the rotatable latchbolt  16 , such that the rotatable latchbolt  16  is unable to unlatch through rotation. The mechanical locking ring  10 , the mechanical locking cam  13 , the compressed spring  15  and the rotatable latchbolt  16  are matched in a similar manner and thus a repetition is waived here. 
     The engagement between the jamming protuberances  121 ,  131  and the hooks on the mechanical locking rings  4 ,  10  has the following function: when the mechanical locking rings  4 ,  10  rotate in the direction of opening, the hooks hook the jamming protuberances  121 ,  131 , and thus the mechanical locking cams  12 ,  13  are hooked out of the rotation track of the rotatable latchbolt  16  to avoid that the mechanical locking cams  12 ,  13  may block the rotatable latchbolt  16  and affect the unlatching movement. 
     During mounting, when an inserting pin is inserted into the first jamming hole  30   a  and the second jamming hole  14   a , one of the connecting sheets  14  is fixed, the connecting sheet  14  moves neither inwards nor outwards inside the mechanical locking housing  30 . Thus, one side of the locked connecting sheet cannot lock the latchbolt by rotating the lever in the opposite direction of unlatching. In an unmounted state, neither of the two connecting sheets is locked. In a specific mounting, depending on the logic of how the room door is actually chosen, people can choose to lock one connecting sheet  14 , or to lock neither of the two connecting sheets or both two connecting sheets. A selection among a variety of logic combinations is thus achieved. 
     As shown in  FIGS. 1 to 8 , the motored locking system C comprises two sets of mirror symmetric transmitting mechanisms and two motored jamming hooks  19  that are mirror symmetrical, wherein both sets of the transmitting mechanisms are driven through a motor  29 . 
     The transmitting mechanisms transmit the power of the motor  29  to the motored jamming hooks  19 . Between the two sets of transmitting mechanisms, a bar  18  is provided in that the two sets of transmitting mechanisms are mirror symmetric regarding the bar  18 . 
     The electrical locking rings  2 ,  9  are provided with hook parts, which match the electrical jamming hooks  19 . When the electrical jamming hooks  19  hook the hook parts of the electrical locking rings  2 ,  9 , the electrical locking rings  2 ,  9  are locked. 
     The transmitting mechanisms are gear-driven, wherein two sets of the transmitting mechanisms are provided mirrored and symmetrical on both sides of bar  18 . 
     A transmitting mechanism comprises an input gear  26 , a first middle gear  27 , a second middle gear  25 , a third middle gear  23  and an output gear  20 . The input gear  26  and the first middle gear  27  are arranged coaxially, and the first middle gear  27 , the second middle gear  25 , the third middle gear  23  and the output gear  20  are engaged in sequence. 
     The input gear  26  is a contrate gear and the first middle gear  27  and the third middle gear are unidirectional gears. 
     A unidirectional rotation of the first middle gear  27  is realized by fixing a rotatable shaft on the first middle gear  27 . An overrunning clutch  22  is mounted fixedly on the rotatable shaft, wherein the first middle gear  27  is attached to the overrunning clutch  22 . The function of the overrunning clutch  22  lies in that the transmitting mechanism on one mirrorside outputs when the motor rotates positively, and the transmitting mechanism on the other mirrorside outputs when the motor rotates reversely, that is to say, on both mirrorsides, the first middle gear  27  on one mirrorside is driven by rotating the motor positively, while the overrunning clutch  22  that is attached to the first middle gear  27  on the other mirrorside idles. Similarly, when the motor rotates reversely, only one transmitting mechanism is driven to output by rotating the motor in one direction. 
     A unidirectional rotation of the third middle gear  23  is realized by providing a rotatable shaft on the locking housing. An overrunning clutch  22  is attached to the rotatable shaft, wherein the third middle gear  23  is attached to the overrunning clutch  22 . The middle gear  23  engages then with the output gear  20 . The transmitting process is that the third middle gear  23  rotates and drives the output gear  20 , the output gear  20 , however, cannot drive the third middle gear  23  backwards, which successfully prevents the gears of the electrical locking system from rotating freely, which may be caused by swings of opening or closing the door. 
     An overrunning clutch is a basic part which appears along with the development of the mechatronic integrated products. It is an important part for transmitting and separating function between a prime mover and a working machine or between a driving shaft and a driven shaft inside a machine. It is a device having the self-clutch function by making use of velocity change of the driving part and the driven part as well as the switch of the rotation direction. An overrunning clutch may be a wedge-typed overrunning clutch, a roller-typed overrunning clutch or a ratchet-typed overrunning clutch. The overrunning clutch belongs to prior art and thus a repetition is waived here. 
     At last, the output gear  20  drives the motored jamming hook  19  to swing periodically. 
     As shown in  FIG. 4 , two transmitting mechanisms share a common motor  29 , which is provided at its output end with a driving gear  28 , which is attached to an output shaft of the motor  29 . The driving gear  28  engages with both input gears  26 . The working state on both sides of two motored jamming hooks  19  is described as follows: the motored jamming hook  19  on one of the mirrorsides works, while the motored jamming hook  19  on the other mirrorside does not work. When the motor rotates positively and reversely, the motored jamming hooks  19  on both mirrorsides repeat controlling the state of the switch on the corresponding side alternatively. 
     As shown in  FIG. 4 , one end of the motored jamming hook  19  is an end of the hook part and the other end of the motored jamming hook  19  is a connecting end of the pin shaft. The motored jamming hook  19  is provided with oval through holes, which are located between the end of the hook part and the connecting end of the pin shaft. The motored jamming hook  19  swings around the pin shaft. 
     The front end of the output gear  20  is provided with an eccentric pillar  201 , which passes through the oval through holes. When the output gear  20  rotates, the eccentric pillar  201  rotates around the fixed shaft of the output gear  20  and the eccentric pillar  201  drives the motored jamming hook  19  to swing. 
     The connecting end of the pin shaft of the motored jamming hook  19  triggers the motored locking position sensors A 2  at different positions, so that a positioning is realized. 
     As shown in  FIGS. 3, 4 and 6 , the cylinder mechanism B is provided with an electrical unlocking cam  6 , which rotates synchronously with the control pillars  10 ,  11 . The motored locking system C further comprises automatic unlocking rings  21 ,  24 . The output gear  20  and the output gear  20  rotate coaxially and synchronously. Two electrical unlocking cams  6  match the automatic unlocking rings  21 ,  24 . 
     The eccentric pillar  201  is fixed on the front end of the automatic unlocking rings  21 ,  24  and passes through the output gear  20 . 
     When the control pillars  8 ,  11  rotate in the opposite direction of unlatching, the mechanical locking rings  4 ,  10  moves the ends of the mechanical locking cams  12 ,  14  to rotate redirected to the unlocking rotation track of the rotatable latchbolt  16 , so that locking of the rotatable latchbolt  16  is realized. When the motor  29  drives the motored jamming hook  19  to rotate, the automatic unlocking rings  21 ,  24  rotate synchronously. Two electrical unlocking cams  6  are moved separately to rotate when the automatic unlocking rings  21 ,  24  rotate. Two electrical unlocking cams  6  move the control pillars  8 ,  11  with them to turn back to the standby state, that is to say, the lever is turned back to the standby state. After the motor  29  rotates in one period, the eccentric pillar  201  moves from one end of the short shaft of the oval through holes to the other end and an one-way swing is accomplished. When the motor  29  and the automatic unlocking rings  21 ,  24  rotate, the electrical unlocking cams  6  are necessarily moved back to the original position, and thus an unlocking of the rotatable bolts  21 ,  24  by the mechanical locking cams  12 ,  13  are achieved. 
     As shown in  FIG. 2 , the lock according to the present invention is further provided with a jamming protrusion. A jamming protrusion is provided at the rotatable latchbolt  16  to avoid an excessive rotation angle of the latchbolt during unlatching, while a jamming protrusion is provided in the opposite direction of unlocking rotating direction at the latchbolt control ring  1 , a jamming protrusion is provided at the motored locking rings  2 ,  9 . The rotating distance of a jamming hooked structure of the latchbolt control ring  1  is jammed under tension of the extension spring  3 , however, the rotating distance in the unlatching direction is not limited by the protrusion. 
     Second Embodiment 
     In a further embodiment, on the basis of the aforementioned embodiment, a first latchbolt synchronizer  163  and a second latchbolt synchronizer  164  are provided on one side of the latchbolt  16  and are coaxial with a latchbolt rotating shaft to prevent the electrical locking system from being bypassed by an object such as a plastic card and to prevent the door from being forcibly opened, as shown in  FIGS. 15 to 23 . The second latchbolt synchronizer  164  is provided between the latchbolt  16  and the first latchbolt synchronizer  163 . When the latchbolt  16  rotates along Z 3  to lock the door, the second latchbolt synchronizer  164  synchronizes with the latchbolt  16 , however extends outwards with a linear movement. In the present embodiment, the jamming protuberance  1611  on the latchbolt  16  may be concave shaped compared to that in the first embodiment and has the same function as in the first embodiment. Thus, a repetition is waived here. By adding the first latchbolt synchronizer  163  and the second latchbolt synchronizer, a telescopic member  31 , a double-ended tension spring  32  and a jamming hook  33 . The jamming hook  33  contacts the latchbolt  16  when the latchbolt is in an unlatched state, as shown in  FIG. 16 . The double-ended tension spring  32  is provided inside the jamming hook  33  with one end pressing against the jamming hook  33  and the other hand contacting the mechanical locking housing  30 , such that the jamming hook  33  can move when latchbolt  16  rotates. When the jamming protuberance  1611  of the bolt  16  is passed, the jamming hook  33  jams the latchbolt  16  such that the latchbolt  16  cannot rotate outwards. The telescopic member  31  can bear force and move inwards to inside the lock when closing the door. Further, the jamming hook  33  is rotated clockwise such that the jamming hook  33  leaves the area that jams the jamming protuberance to release latchbolt  16 . As shown in  FIGS. 15 and 16 . Meanwhile, it is worth to mention that the side of the telescopic member  31 , which is away from the inside of the lock, is arc-shaped, which applies for all kinds of doors. Through the arrangement of the telescopic member  31 , the double-ended tension spring  32  and the jamming hook  33 , the latchbolt cannot rotate outwards when the door leaves the door frame, which thus enhances the overall harmonious impression. A latchbolt is provided to avoid jamming of rope-shape objects such as lines, belts and others due to unnecessary extending out. Meanwhile, since it is not required to resist the spring force of the latchbolt when closing the door, the door closing movement is smoother. In further technical effects, such design prevents the user from accidentally locking the latchbolt when the door is opened. If the latchbolt keeps extending out when the door is opened, certain noises appear when closing a sliding door and in case a bump into the door frame is unavoidable, which itself is a damage on the door frame. This design can partially avoid the bump from the latchbolt to the door frame. Meanwhile, the bump is concentrated on telescopic member  31 . The telescopic member  31  ejects automatically after bumping into a latchbolt  16 , which will not affect the resilience function of the sliding door. 
     A lock that does not distinguish between public and private spaces according to the present invention is explained in detail above. The description of specific embodiments is only intended to help in understanding the method and core idea of the present invention. It should be noted that the skilled person in the art can make improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be considered as the scope of protection of the present invention. 
     A cylinder and a control component according to the present invention is explained in detail above. The description of specific embodiments is only intended to help in understanding the method and core idea of the present invention. It should be noted that the skilled person in the art can make improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be considered as the scope of protection of the present invention.