Abstract:
A remote controller includes a remote controller body, a control stick provided on the remote controller body, and a bracket mounted on the remote controller body. The bracket includes a connecting frame and a holding mechanism. The holding mechanism includes a first clamping member rotatably connected to the connecting frame and including a first clamping part, and a second clamping member comprising a second clamping part and a limiting part. The second clamping member is slidably mounted on the first clamping member and configured to adjust a spacing between the second clamping part and the first clamping part. The holding mechanism further includes a limiter provided on the first clamping member. The limiter is fitted with the limiting part and configured to limit a relative sliding position of the first and second clamping members.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    This is a continuation application of International Application No. PCT/CN2014/092544, filed on Nov. 28, 2014, the entire contents of which are incorporated herein by reference. 
     
    
     TECHNICAL 
       [0002]    The present disclosure relates to a fastening assembly, a holding mechanism, as well as a bracket and a remote controller using the holding mechanism. 
       BACKGROUND 
       [0003]    With the development of science and technology, aerial photography has emerged and become increasingly popular, and aerial photography with unmanned aerial vehicles is increasingly favoured by photographers because of lower costs and safety thereof in comparison with manned aerial photography. Aerial photography with unmanned aerial vehicles is usually carried out by using an aerial vehicle which carries a shooting device, such as a video camera or a photo camera, for shooting. Generally, a photographer uses a remote controller to control the flight of the aerial vehicle, and in order to watch the shooting effect in time, a displaying device such as a display and a mobile phone needs to be mounted on the remote controller, wherein the displaying device is fixed on the remote controller via a holding device. The holding device usually comprises a first and a second clamping member for clamping the displaying device and the first and second clamping members are elastically connected and movable relative to each other, such that the holding device is applicable to displaying devices such as mobile phones of different sizes. 
         [0004]    However, the holding device is not applicable to all displaying devices in a larger size range, such as a mobile phone and a tablet, etc., and therefore the application range thereof is largely limited. Moreover, the holding device elastically clamps the displaying device via the first and second clamping members, and therefore the clamping force is small and the clamping is unreliable; and when the holding device shakes, the displaying device can easily fall off of the holding device. 
       SUMMARY 
       [0005]    The present disclosure provides a holding mechanism with tight and reliable clamping and a broad application range, a bracket and a remote controller using the holding mechanism, as well as a fastening assembly for the holding mechanism. 
         [0006]    A fastening assembly, comprising: a fastening member, with a threaded part and a mating part connected to the threaded part. The threaded part and the mating part are formed on the fastening member; and an operating member which is movably sheathed on the fastening member, with a snap-fitting part corresponding to the mating part being formed on the operating member. The operating member can slide along the axial direction thereof relative to the fastening member under the action of an external force, until the snap-fitting part is snap-fitted with the mating part, such that the operating member drives the fastening member to rotate via the snap-fitting part. 
         [0007]    In some embodiments, the fastening assembly further comprises a resetting member which provides an elastic restoring force to the operating member to enable the operating member to automatically reset after sliding. 
         [0008]    In some embodiments, the resetting member is accommodated in the operating member. One end of the resetting member abuts against the fastening member, and the other end thereof abuts against the operating member. 
         [0009]    In some embodiments, a first and a second sheathing hole are provided on the operating member along the axial direction thereof. The first and second sheathing holes are in communication with each other and penetrate through the entire operating member. The size of the first sheathing hole is smaller than that of the second sheathing hole, such that a stepped surface is formed at the position where the first and second sheathing holes are connected and one end of the resetting member abuts against the stepped surface and the other end thereof abuts against the fastening member. 
         [0010]    In some embodiments, the fastening member further comprises a flange part formed on the end of the mating part which is far away from the threaded part. The resetting member is sheathed on the mating part and abuts between the stepped surface and the flange part. 
         [0011]    In some embodiments, the snap-fitting part is a snapping protrusion formed in the operating member. A snapping part is provided on the end of the mating part which is relatively far away from the threaded part. The operating member can slide along the axial direction relative to the fastening member, such that the snap-fitting part can be snapped with or separated from the snapping part. 
         [0012]    In some embodiments, the snapping part is a slot provided on the mating part and extending along the circumferential direction of the mating part. 
         [0013]    In some embodiments, the diameter of the threaded part is smaller than that of the mating part. A sliding groove is recessed on the mating part along the axial direction thereof. One end of the sliding groove penetrates to the threaded part and the other end thereof is in communication with the snapping part. The snap-fitting part can slide along the sliding groove into the snapping part. 
         [0014]    In a fastening assembly described in any one of the above, further comprises a locking member for a threaded fit with the threaded part. 
         [0015]    A holding mechanism, comprising a first and a second clamping member, wherein the first clamping member comprises a first clamping part; the second clamping member comprises a second clamping part and a limiting part; the second clamping member is slidably mounted on the first clamping member so as to adjust the spacing between the second clamping part and the first clamping part; the holding mechanism further comprises a limiter provided on the first clamping member, and the limiter is fitted with the limiting part so as to limit the relative sliding position of the first and second clamping members. 
         [0016]    In some embodiments, the holding mechanism further comprises a first elastic member. One end of the first elastic member is connected to the first clamping member and the other end thereof is connected to the second clamping member, so as to provide a restoring force of movement for the relative sliding between the first and second clamping members. 
         [0017]    In some embodiments, the first clamping member comprises a first housing and a second housing snap-fitted with the first housing, and the first clamping part and the limiter are provided on the second housing; the second clamping member is slidably accommodated between the first housing and the second housing. 
         [0018]    In some embodiments, the limiter is rotatably provided on the second housing and the limiter can be separated from or snapped with the limiting part by pressing or releasing the limiter. 
         [0019]    In some embodiments, the limiting part is a sawtooth rack, and the limiter is a rotating stir, wheel with one end snapped with the sawtooth rack and the other end being an operating end. 
         [0020]    In some embodiments, the holding mechanism further comprises a second elastic the pressing member is provided on the second housing and can drive the limiter to rotate by pressing or releasing the pressing member. 
         [0021]    In some embodiments, the holding mechanism further comprises a second elastic member for providing a restoring force of rotation to the limiter. 
         [0022]    In some embodiments, a meshing member is rotatably provided on the first housing and a meshing part for meshing with the meshing member is provided on the second clamping member. 
         [0023]    In some embodiments, the meshing member is a gear, the meshing part is a rack, and when the second clamping member slides relative to the first housing, the meshing part drives the meshing member to rotate by means of meshed transmission. 
         [0024]    A holding mechanism as described in any one of the above, wherein, the holding mechanism further comprising a plurality of protecting members, and the plurality of protecting members are respectively provided on the side of the first clamping part facing the second clamping part and on the side of the second clamping part facing the first clamping part. 
         [0025]    A bracket, comprising a connecting frame and a holding mechanism, and the holding mechanism comprises a first and a second clamping member, wherein the first clamping member comprises a first clamping part, the second clamping member comprises a second clamping part and a limiting part, and the second clamping member is slidably mounted on the first clamping member so as to adjust the spacing between the second clamping part and the first clamping part; the holding mechanism further comprises a limiter provided on the first clamping member, and the limiter is fitted with the limiting part so as to limit the relative sliding position of the first and second clamping members. The first clamping member is rotatably connected to the connecting frame. 
         [0026]    In some embodiments, the holding mechanism further comprises a first elastic member. One end of the first elastic member is connected to the first clamping member and the other end thereof is connected to the second clamping member, so as to provide a restoring force of movement for the relative sliding between the first and second clamping members. 
         [0027]    In some embodiments, the first clamping member comprises a first housing and a second housing snap-fitted with the first housing, and the first clamping part and the limiter are provided on the second housing; the second clamping member is slidably accommodated between the first housing and the second housing. 
         [0028]    In some embodiments, the limiter is rotatably provided on the second housing and the limiter can be separated from or snapped with the limiting part by pressing or releasing the limiter. 
         [0029]    In some embodiments, the limiting part is a sawtooth rack, and the limiter is a rotating stir wheel with one end thereof being snapped with the sawtooth rack and the other end thereof being an operating end. 
         [0030]    In some embodiments, the holding mechanism further comprises a pressing member, the pressing member is provided on the second housing and can drive the limiter to rotate by pressing or releasing the pressing member. 
         [0031]    In some embodiments, the limiter further comprises a second elastic member for providing a restoring force of rotation to the limiter. 
         [0032]    In some embodiments, a meshing member is rotatably provided on the first housing and a meshing part for meshing with the meshing member is provided on the second clamping member. 
         [0033]    In some embodiments, the meshing member is a gear, the meshing part is a rack, and when the second clamping member slides relative to the first housing, the meshing part drives the meshing member to rotate by means of meshed transmission. 
         [0034]    A bracket as described in any one of the above, wherein, the holding mechanism further comprises a plurality of protecting members, and the plurality of protecting members are respectively provided on the side of the first clamping part facing the second clamping part and on the side of the second clamping part facing the first clamping part. 
         [0035]    In some embodiments, the bracket further comprises a fastening assembly for adjusting the mounting position of the holding mechanism relative to the connecting frame. 
         [0036]    In some embodiments, the fastening assembly comprises a fastening member penetrating the first clamping member and connected to the connecting frame. 
         [0037]    In some embodiments, the fastening member is a screw or a bolt. 
         [0038]    In some embodiments, a threaded part and a mating part connected to the threaded part are formed on the fastening member; the fastening assembly further comprises an operating member movably sheathed on the fastening member, and a snap-fitting part corresponding to the mating part is formed on the operating member; 
         [0039]    Wherein the operating member can slide along the axial direction thereof relative to the fastening member under the action of an external force, until the snap-fitting part is snap-fitted with the mating part, such that the operating member drives the fastening member to rotate via the snap-fitting part. 
         [0040]    In some embodiments, the fastening assembly further comprises a resetting member which provides an elastic restoring force to the operating member to enable the operating member to automatically reset after sliding. 
         [0041]    In some embodiments, the resetting member is accommodated in the operating member. One end of the resetting member abuts against the fastening member, and the other end thereof abuts against the operating member. 
         [0042]    In some embodiments, a first and a second sheathing hole are provided on the operating member along the axial direction thereof. The first and second sheathing holes are in communication with each other and penetrate through the entire operating member. The size of the first sheathing hole is smaller than that of the second sheathing hole, such that a stepped surface is formed at the position where the first and second sheathing holes are connected, and one end of the resetting member abuts against the stepped surface and the other end thereof abuts against the fastening member. 
         [0043]    In some embodiments, the fastening member further comprises a flange part formed on the end of the mating part which is far away from the threaded part and the resetting member is sheathed on the mating part and abuts between the stepped surface and the flange part. 
         [0044]    In some embodiments, the snap-fitting part is a snapping protrusion formed in the operating member; a snapping part is provided on the end of the mating part which is relatively far away from the threaded part; and the operating member slides along the axial direction relative to the fastening member, such that the snap-fitting part can be snapped with or separated from the snapping part. 
         [0045]    In some embodiments, the snapping part is a slot provided on the mating part and extending along the circumferential direction of the mating part. 
         [0046]    In some embodiments, the diameter of the threaded part is smaller than that of the mating part; a sliding groove is recessed on the mating part along the axial direction thereof; one end of the sliding groove penetrates to the threaded part and the other end thereof is in communication with the snapping part, and the snap-fitting part can slide along the sliding groove into the snapping part. 
         [0047]    A bracket as described in any one of the above, wherein, the fastening assembly further comprises a locking member screwed with the fastening member, and the fastening member is screwed on the locking member after passing through the first clamping member and the connecting frame. 
         [0048]    In some embodiments, the bracket further comprises a fastening shaft fixedly provided on the connecting frame and a fastening sleeve which is rotatably sheathed on the fastening shaft, and the fastening sleeve is used to fix the bracket as a whole to an external device by means of a threaded connection. 
         [0049]    In some embodiments, the fastening shaft comprises a connecting end fixedly inserted in the connecting frame and a limiting end formed on the end of the connecting end, the fastening sleeve is sheathed on the connecting end and can rotate relative to the connecting end, and the limiting end is used to locate the connecting frame on the external device. 
         [0050]    In some embodiments, outer threads are formed on the end of the fastening sleeve which is close to the limiting end, and when the fastening sleeve rotates relative to the fastening shaft, the fastening sleeve can be screwed with the external device so as to fix the bracket as a whole to the external device. 
         [0051]    A remote controller, comprising a remote controller body and a control stick provided on the remote controller body, and furthermore, the remote controller further comprises a bracket as described in any one of the above, and the bracket is mounted on the remote controller body. 
         [0052]    In some embodiments, one end oldie bracket is rotatably connected to the remote controller body, and the other end is rotatably connected to the first clamping member. 
         [0053]    In some embodiments, the remote controller further comprises a locating assembly for fixedly connecting the middle part of the connecting frame with the remote controller body. 
         [0054]    In some embodiments, the locating assembly further comprises a fastening shaft fixedly provided on the connecting frame and a fastening sleeve which is rotatably sheathed on the fastening shaft, and the fastening sleeve is used to fix the bracket as a whole to the remote controller body by means of a threaded connection. 
         [0055]    In some embodiments, the fastening shaft comprises a connecting end fixedly inserted in the connecting frame and a limiting end formed on the connecting end, wherein the fastening sleeve is sheathed on the connecting end and can rotate relative to the connecting end, and the limiting end is used to locate the connecting frame on the remote controller body. 
         [0056]    In some embodiments, outer threads are formed on the end of the fastening sleeve which is close to the limiting end, and when the fastening sleeve rotates relative to the fastening shaft, the fastening sleeve can be screwed with the external device so as to fix the bracket as a whole to the remote controller body. 
         [0057]    A holding mechanism for a remote controller provided in the present disclosure uses both the first and second clamping parts to clamp the external displaying device, the second clamping part can move relative to the first clamping part, such that the bracket can be applied to displaying devices of different sizes and the application range of the holding mechanism is broad. In addition, such holding mechanism limits the distance between the first clamping part and the second clamping part via the snapping between the limiter and the limiting part, such that the holding mechanism is applicable to displaying devices with larger size differences, which further enlarges the application range thereof. The limiter and the limiting part cab be tightly snap-fitted such that the clamping from the holding mechanism to the displaying device is more reliable. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0058]      FIG. 1  is a three-dimensional assembly schematic diagram of a bracket and a remote controller using the bracket according to an embodiment of the present disclosure, with the bracket being in a first state. 
           [0059]      FIG. 2  is a three-dimensional assembly schematic diagram of the bracket and the remote controller using the bracket as shown in  FIG. 1 , with the bracket being in a second state. 
           [0060]      FIG. 3  is a three-dimensional schematic diagram of the bracket and the remote controller using the bracket shown in  FIG. 1 , wherein the bracket and the remote controller are in an operation state. 
           [0061]      FIG. 4  is a three-dimensional schematic diagram of the bracket as shown in  FIG. 1  in the first state. 
           [0062]      FIG. 5  is a three-dimensional schematic diagram of the bracket as shown in  FIG. 4  the second state. 
           [0063]      FIG. 6  is an exploded three-dimensional schematic diagram of the bracket as shown in  FIG. 5 . 
           [0064]      FIG. 7  is an exploded three-dimensional schematic diagram of the bracket as shown in  FIG. 5  from another viewing angle. 
           [0065]      FIG. 8  is an exploded three-dimensional schematic diagram of the fastening assembly of the bracket as shown in  FIG. 6 . 
           [0066]      FIG. 9  is a schematic diagram of the internal structure of the bracket as shown in  FIG. 5 . 
           [0067]      FIG. 10  is an enlarged schematic diagram of the region X of the bracket as shown in  FIG. 7 . 
       
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
       [0068]    Technical solutions of the present disclosure will be described with reference to the drawings. It will be appreciated that embodiments as described in the disclosure are some rather than all of the embodiments of the present disclosure. Other embodiments, which are conceived by those having ordinary skills in the art on the basis of the disclosed embodiments without inventive efforts, should fall within the scope of the present disclosure. 
         [0069]    Please refer to  FIGS. 1-3 , a remote controller  200  according to an embodiment of the present disclosure is shown, which is used for remotely controlling an aerial vehicle (not shown in the figures) carrying a shooting device (not shown in the figures), such as a video camera or a photo camera. A bracket  100  is mounted on the remote controller  200 , the bracket  100  is used for mounting displaying devices (not shown in the figures), such as a display, a mobile phone, or a tablet computer; the bracket  100  is also electrically connected to and transmits data with the shooting device and the remote controller  200 , such that the displaying device receives and displays the real-time images shot by the shooting device, and therefore the photographer can see the shooting effect in time. 
         [0070]    The remote controller  200  comprises a remote controller body  201  and a control stick  203  provided on the remote controller body  201 . The remote controller body  201  is used to provide a hand-holding position for a photographer so as to facilitate the operation by the photographer, and the control stick  203  is used to control the flying direction of the aerial vehicle. In this embodiment, the control stick  203  is an operating handle and the number thereof is two. It is understood that the numbers of the hand holding part  2013  and the control stick  203  can be one or more. 
         [0071]    The bracket  100  is provided on the remote controller body  201  near the control stick  203  and comprises a seat  10  and a holding mechanism  30  connected to the seat  10 . 
         [0072]    The seat  10  comprises a connecting frame  12 , and a locating assembly  14  and a fastening assembly  16  provided on the connecting frame  12 . 
         [0073]    Please refer to  FIGS. 4-6 , the connecting frame  12  is in an approximately U-shaped bent shape and is used for connecting to the remote controller body  201 . The connecting frame  12  comprises an abutting and holding part  121 , a supporting part  123  and a connecting part  125  which are successively connected. The abutting and holding part  121  overlies on the surface of the remote controller body  201 . The supporting part  123  is formed by bending one end of the abutting and holding part  121 , and extends towards the direction facing away from the remote controller body  201 . The connecting part  125  is formed by bending the end of the supporting part  123  which is far away from the abutting and holding part  121 , and extends towards the direction which is relatively close to the abutting and holding part  121 , so as to form one piece in a bent U shape and form an accommodating space  127  together with the supporting part  123  and the abutting and holding part  121 , and the accommodating space  127  is used to accommodate a part of the structure of the holding mechanism  30 . 
         [0074]    A locating assembly  14  is provided on the side of the supporting part  123  close to the remote controller body  201  and is used to fix the seat  10  as a whole to the remote controller body  201 . The locating assembly  14  comprises a fastening shaft  141  and a fastening sleeve  143  sheathed on the fastening shaft  141 . 
         [0075]    The fastening shaft  141  is roughly in a cylindrical shape and comprises a connecting end  1411 , and a limiting end  1413  formed at one end of the connecting end  1411 . The connecting end  1411  is fixedly inserted onto the supporting part  123 . The outer diameter of the limiting end  1413  is larger than that of the connecting end  1411 , and the limiting end is inserted into a locating hole (not shown in the figures) of the remote controller body  201  so as to locate the connecting frame  12 . The fastening sleeve  143  is provided with a through hole (not shown in the figures) in an axial direction, the size of the through hole is larger than the outer diameter of the connecting end  1411  and is smaller than the outer diameter of the limiting end  1413 , such that the fastening sleeve  143  cannot fall off of the fastening shaft  141  when the fastening sleeve  143  is rotatably sheathed outside the connecting end  1411  of the fastening shaft  141  via the through hole. Connecting outer threads are formed on the end of the fastening sleeve  143  which is close to the limiting end  1413 , and the connecting outer threads are used to be screwed with the locating hole on the remote controller body  201  so as to fix the connecting frame  12  on the remote controller body  201 . 
         [0076]    The fastening assembly  16  is provided on the connecting part  125  and is used to connect the holding mechanism  30  to the connecting frame  12 . The fastening assembly  16  comprises a locking member  161 , a fastening member  163  for connecting the locking member  161 , an operating member  165  sheathed on the fastening member  163  and a resetting member  167  accommodated in the operating member  165 . 
         [0077]    In this embodiment, the locking member  161  is a hexagon nut, provided near the end of the connecting part  125  which is far away from the supporting part  123 , and located on one side of the connecting part  125 . 
         [0078]    Please refer to  FIGS. 7 and 8 , the fastening member  163  is in an approximately cylindrical shape and one end thereof passes through the connecting part  125  and is screwed with the locking member  161 . The fastening member  163  comprises a threaded part  1631 , an abutting and bearing part  1633 , a mating part  1635  and a flange part  1639  which are successively connected. The threaded part  1631  is provided with outer threads and is used to be screwed with the locking member  161 . The abutting and bearing part  1633  is formed on the end of the threaded part  1631  which is far away from the locking member  161  and the outer diameter thereof is larger than that of the threaded part  1631 . The mating part  1635  is formed on the end of the abutting and bearing part  1633  which is far away from the threaded part  1631  and is used to be snapped with or separated from the operating member  165 . The outer circumferential wall of the mating part  1635  is recessed to form a snapping part  1637  and as sliding groove  1638 . The snapping part  1637  is provided at the end, which is far away from the abutting and bearing part  1633 , of the outer circumferential wall of the mating part  1635  and is a slot extending along the circumferential direction of the mating part  1635 . The sliding groove  1638  is provided along the axial direction of the mating part  1635 , one end thereof penetrates the end surface of the abutting and bearing part  1633  which is far away from the mating part  1635 , and the other end is in communication with the snapping  1637 . In this embodiment, the numbers of the snapping part  1637  and the sliding groove  1638  are two; the two snapping parts  1637  are arranged on two opposite sides of the mating part  1635  facing away from each other, and each sliding groove  1638  corresponds to one snapping part  1637  and is in communication with the corresponding snapping part  1637 . The flange part  1639  is formed on the end of the mating part  1635  which is far away from the abutting and bearing part  1633 , and the outer diameter thereof is larger than that of the mating part  1635 . The flange part  1639  is used to stop the resetting member  167  by abutting. 
         [0079]    The operating member  165  is in an approximately cylindrical shape and can be movably sheathed on the fastening member  163  for providing a convenient operating part for a user, such that the user can screw the fastening member  163  out of the locking member  161  via the operating member  165 . A first sheathing hole  1651  and a second sheathing hole  1653  are provided on the operating member  165  along the axial direction thereof, and the first sheathing hole  1651  and the second sheathing hole  1653  are in communication with each other and penetrate the entire operating member  165 . The first sheathing hole  1651  is provided close to the locking member  161  and the second sheathing hole  1653  is provided on the end of the first sheathing hole  1651  which is far away from the locking member  161 . The bore diameter of the second sheathing hole  1653  is larger than that of the first sheathing hole  1651 , such that a stepped surface  1655  is formed at the position where the first sheathing hole  1651  and the second sheathing hole  1653  are connected. The stepped surface  1655  is used to abut against the flange part  1639  to prevent the operating member  165  from falling off of the fastening member  163  when the operating member  165  moves along the fastening member  163 . A snap-fitting part  1657  protrudes from and is formed on the inner wall of the first sheathing hole  1651 . In this embodiment, the number of the snap-fitting parts  1657  is two, and each snap-fitting part  1657  corresponds to one snapping part  1637 . The distance between the two snap-fitting parts  1657  is smaller than the maximum outer diameter of the mating part  1635  and the abutting and bearing part  1633 , and when driven by an external force applied along the axial direction of the operating member  165 , the snap-fitting parts  1657  can slide along the lengthwise direction of the sliding groove  1638  and are accommodated in the corresponding snapping part  1637 . When the operating member  165  is driven by an external force to rotate relative to the fastening member  163 , the snap-fitting part  1657  slides in the snapping part  1637  along a circumferential direction and abuts against the side wall of the snapping part  1637 . The operating member  165  continues rotating when driven by the external force, the snap-fitting part  1657  pushes against the side wall of the snapping part  1637  to drive the fastening member  163  to rotate along with the operating member  165 , such that the fastening member  163  moves relatively further away from or closer to the locking member  161 . 
         [0080]    The resetting member  167  is sheathed on the mating part  1635  and is accommodated in the second sheathing hole  1653 . In this embodiment, the resetting member  167  is a helical compression spring. One end of the resetting member  167  abuts against the flange part  1639  and the other end abuts against the stepped surface  1655 . When the operating member  165  is relatively far away from the flange part  1639 , the snap-fitting part  1657  abuts against the end surface of the abutting and bearing part  1633  and the resetting member  167  is in a normal state. When the operating member  165  is driven by an external force to move close to the flange part  1639 , the snap-fitting part  1657  slides along the sliding groove  1638  towards the corresponding snapping part  1637  and the resetting member  167  is gradually compressed. When the snap-fitting part  1657  slides to the snapping part  1637  and is steadily accommodated in the snapping part  1637 , the resetting member  167  is in a compressed state and stores elastic energy. At this time, abutted by the resetting member  167 , the end surface of the snap-fitting part  1657  abuts against the side wall of the snapping part  1637 . When the operating member  165  rotates under the driving by an external force to cause the snap-fitting part  1657  to slide along the circumferential direction of the fastening member  163  on the side wall of the snapping part  1637  to the corresponding slide groove  1638 , the end surface of the snap-fitting part  1657  is no longer stopped by the side wall of the snapping part  1637 , and, under the action of a resetting elastic force of the resetting member  167 , the snap-fitting part  1657  slides along the sliding groove  1638  and moves away from the flange part  1639 , such that the operating member  165  as a whole moves away from the flange part  1639 . 
         [0081]    Please refer to  FIGS. 5 and 6  again, the holding mechanism  30  is connected to the connecting frame  12  via the fastening assembly  16  and is used to hold a displaying device, such as a display, a mobile phone or a tablet computer. The holding mechanism  30  comprises a first clamping member  32 , and a second clamping member  34  and a first elastic member  36  both movably accommodated in the first clamping member  32 , and a limiting assembly  38  provided on the first clamping member  32 . 
         [0082]    The first clamping member  32  is connected to the connecting frame  12 , and comprises a first housing  321 , a second housing  323  snap-fitted with the first housing  321  and a first protecting member  325  provided on the second housing  323 . 
         [0083]    The first housing  321  is an approximately L-shaped bent plate, and comprises a bottom housing  3211 , as well as a bent part  3213  and a locking part  3215  which are both formed on the bottom housing  3211 . 
         [0084]    The bottom housing  3211  is an approximately rectangular plate, and the bent part  3213  is bent and formed on the end of the bottom housing  3211  which is close to the connecting frame  12 . The locking part  3215  protrudes from and formed on the side of the bottom housing  3211  facing towards the remote controller body  201 , and is close to the bent part  3213 . In this embodiment, the locking part  3215  is approximately in a plate shape and the number thereof is two. The two locking parts  3215  are arranged with a space in between and approximately perpendicular to the bottom housing  3211 . The two locking parts  3215  are respectively located on two sides of the connecting part  125  of the connecting frame  12 , the locking member  161  is provided on one of the two locking parts  3215 , and on the side of the locking part  3215  facing away from the connecting part  125 , and the fastening member  163  is screwed with the locking member  161  after successively passing through the other one of the two locking parts  3215 , the connecting part  125  and the above the locking part  3215 . The fastening member  163  continues rotating after the fastening member  163  rotates to screw with the locking member  161 , so that the abutting and bearing part  1633  of the fastening member  163  is abutted against the corresponding locking part  3215  and cooperates with the locking member  161  to tightly clamp the two locking parts  3215 , and the two locking parts  3215  tightly clamp the connecting part  125  after elastic deformation occurs, such that the holding mechanism  30  can be solidly mounted on the seat  10 . 
         [0085]    Furthermore, a pivot connection part  3217  is formed on and protrudes from the side of the bottom housing  3211  facing away from the remote controller body  201 , and the pivot connection part  3217  is approximately in a shaft shape. The pivot connection part  3217  is rotatably provided with a meshing member  3219 . In this embodiment, the meshing member  3219  is a gear and the outer circumference thereof is provided with a plurality of meshing teeth (not marked in the figures). 
         [0086]    The second housing  323  covers the first housing  321 . The second housing  323  is an approximately L-shaped bent housing and comprises a top housing  3231 , as well as a first clamping part  3233  and a side wall  3235  which are both formed on the top housing  3231 . 
         [0087]    The top housing  3231  is an approximately rectangular plate and is provided on the side of the bottom housing  3211  facing away from the remote controller body  201  and is approximately parallel with the bottom housing  3211 . The first clamping part  3233  is near the bent part  3213 , formed on one end of the top housing  3231  and covers the bent part  3213 . In this embodiment, the number of the side wall  3235  is two. The two side walls  3235  are formed by respectively bending two sides of the top housing  3231 , which extend towards the bottom housing  3211 . The two side walls  3235 , the top housing  3231  and the bottom housing together form an accommodating cavity  3237  and the accommodating cavity  3237  is used to partially accommodate the second clamping member  34 . A mounting hole  3239  is located on and penetrates one of the two side walls  3235 . The mounting hole  3239  is located at the end of the corresponding side wall  3235  which is far away from the first clamping part  3233  and is used to mount a part of the structure of the limiting assembly  38 . 
         [0088]    The first protecting member  325  covers the top housing  3231  and the surface of the first clamping part  3233  facing away from the remote controller body  201 , and is used to protect the clamped displaying device from scratches. In this embodiment, the first protecting member  325  is made of an elastic material. In particular, the first protecting member  325  may be made of foam. It is understood that the first protecting member  325  can also be made of another elastic material, such as rubber. 
         [0089]    The second clamping member  34  is partially and movably inserted in the accommodating cavity  3237 , and comprises a moving part  341 , a second clamping part  343  provided on one end of the moving part  341 , and a second protecting member  345  provided on the second clamping part  343 . 
         [0090]    Please refer to  FIGS. 7 and 9 , the moving part  341  is approximately rectangular plate and is accommodated in the accommodating cavity  3237 . A limiting part  3411  is formed on the side of the moving part  341  facing towards the mounting hole  3239 . In this embodiment, the limiting part  3411  is in a sawtooth rack shape and is used to snap with the limiting assembly  38  so to limit the mounting position of the second clamping member  34  relative to the first clamping member  32 . The moving part  341  is also provided with a meshing part  3413  on the side facing towards the bottom housing  3211 , and the meshing part  3413  is formed corresponding to the meshing member  3219 . In this embodiment, the meshing part  3413  is a rack meshing with the meshing member  3219 . When the moving part  341  slides relative to the first clamping member  32 , the meshing part  3413  meshes with the meshing member  3219 , such that the sliding is smoother and resistant to shaking. 
         [0091]    The second clamping part  343  is provided on the end of the moving part  341  which is far away from the first clamping part  3233  and faces the second clamping part  343  in a parallel manner. The second clamping part  343 , the first clamping part  3233  and the top housing  3231  together form a clamping space (not marked in the figures) for accommodating the displaying device. Under the action of external force, the second clamping part  343  can move relatively away from or close to the first clamping part  3233 , such that the holding mechanism  30  can hold displaying devices of different sizes. 
         [0092]    The second protecting member  345  is provided on the side of the second clamping part  343  facing towards the first clamping part  3233 , and the material and function thereof are approximately the same as the first protecting member  325 . In order to avoid redundancy, details will not be repeated herein in the description. 
         [0093]    The first elastic member  36  is provided between the moving part  341  and the top housing  3231 , one end thereof is connected to the bent part  3213  and the other end is connected to the second clamping member  34 . In this embodiment, the first elastic member  36  is a compression spring. In an original state, i.e. when the moving part  341  is almost completely accommodated in the accommodating cavity  3237 , the first elastic member  36  is in a compressed state. When the second clamping part  343  of the second clamping member  34  moves towards the direction away from the first clamping part  3233 , the first elastic member  36  is gradually stretched to store elastic energy, so as to provide a restoring force of movement to the second clamping member  34 . 
         [0094]    Furthermore, the first clamping member  32  further comprises a third clamping part  327 , and the third clamping part  327  is rotatably connected to the first housing  321  or/and the second housing  323 . When the third clamping part  327  rotates to the position perpendicular to the first housing  321  and/or the second housing  323 , a clamping space for clamping external devices such as a tablet computer or a mobile phone is formed between the third clamping part  327  and the second clamping part  343 . 
         [0095]    In particular, in the embodiments as shown in the figures, the third clamping part  327  is rotatably connected to the second housing  323  via a pivot shaft, and an accommodating groove for accommodating the third clamping part  327  is provided on the second housing  323 . When the third clamping part  327  rotates to the position perpendicular to the first housing  321  and/or the second housing  323 , the third clamping part  327  abuts against the side wall of the accommodating groove facing the second clamping part  343 . 
         [0096]    The specific structures of the third clamping part  327  can be designed according to different requirements, for example, in the embodiments shown in the figures, the third clamping part  327  is a clamping hook and can be snapped with an external devices such as a tablet computer or a mobile phone to prevent the external device from falling off. 
         [0097]    Please refer to  FIG. 10 , the limiting assembly  38  is provided on the bottom housing  3211  corresponding to the mounting hole  3239  and is used to be snapped with the limiting part  3411 , so as to limit the mounting position of the second clamping member  34  relative to the first clamping member  32 . The limiting assembly  38  comprises a pivot shaft  381 , a limiter  383  rotatably sheathed on the pivot shaft  381 , and pressing member  385  and the second elastic member  387  both provided on the limiter  383 . 
         [0098]    The pivot shaft  381  is fixedly provided on the top housing  3231  and close to the limiting part  3411  on the moving part  341 . The limiter  383  is an approximately bent block shape and the approximately middle position thereof is rotatably sheathed on the pivot shaft  381 . Under the action of an external force, the limiter  383  can rotate around the pivot shaft  381 . In this embodiment, the limiter  383  is a rotating stir wheel with one end thereof being snapped with the sawtooth rack of the limiting part  3411  and the other end thereof being as operating end. Particularly, the limiter  383  comprises a rotating part  3831  and a pressing part  3833  formed on one end of the rotating part  3831 . The rotating part  3831  extends from the pivot shaft  381  towards the limiting part  3411 ; the pressing part  3833  extends from the pivot shaft  381  towards the mounting hole  3239 ; and a certain angle is formed between the rotating part  3831  and the pressing part  3833 . The end of the rotating part  3831  which is close to the limiting part  3411  protrudes to form a stopping part  3835 . In this embodiment, the stopping part  3835  is in a protruding tooth shape and is used to snap the saw teeth of the limiting part  3411 . The pressing member  385  is mounted in the mounting hole  3239  with one end being abutted against the pressing part  3833  of the limiter  383  and the other end protruding out of the side wall  3235 . One end of the second elastic member  387  is connected to the pressing part  3833  and the other end is connected to the top housing  3231 . In this embodiment, the second elastic member  387  is a helical compression spring. 
         [0099]    When the pressing member  385  is pressed by an external force, the limiter  383  is driven thereby to rotate around the pivot shaft  381 , such that the second elastic member  387  elastically deforms and is compressed, and at the same time, the pressing part  3833  brings the stopping part  3835  to move away from the limiting part  3411 , therefore the stopping part  3835  is no longer snap-fitted with the limiting part  3411 , and the second clamping member  34  can move relative to the first clamping member  32 . When the external force is lifted and under the action of the elastic restoring force of the second elastic member  387 , the limiter  383  rotates reversely around the pivot shaft  381  and the stopping part  3835  is again snapped in the limiting part  3411 , such that the second clamping member  34  is fixed relative to the first clamping member  32 . 
         [0100]    When assembling the bracket  100  in this embodiment, firstly, the limiting assembly  38  is arranged on the second housing  323  and the moving part  341  is arranged in a parallel manner on the top housing  3231 , such that the stopping part  3835  is snapped in the limiting part  3411 . The meshing member  3219  is rotatably arranged on the bottom housing  3211 ; the first elastic member  36  is connected between the bent part  3213  and the second clamping member  34 ; and then the first housing  321  is snap-fitted on the second housing  323 , such that the meshing member  3219  is meshed with the meshing part  3413 . Next, the first protecting member  325  and the second protecting member  345  are arranged on the first clamping part  3233 , the top housing  3231  and the second clamping part  343 . Then, the holding mechanism  30  is mounted on the connecting frame  12  via the fastening assembly  16 , and then the locating assembly  14  is arranged on the connecting frame  12 . When the bracket  100  needs to be mounted on the remote controller body  201 , firstly, the fastening shaft  141  is inserted in the locating hole of the remote controller body  201  and then the fastening sleeve  143  is screwed in the locating hole, thereby firmly mounting the bracket  100  on the remote controller body  201 . 
         [0101]    Please again refer to  FIG. 1 , wherein in a non-use state, the holding mechanism  30  is approximately parallel to the remote controller body  201 , the top housing  3231  thereof faces the remote controller body  201 , and the first clamping part  3233  is partially accommodated in the accommodating space  127  of the connecting frame  12 . At this time, the fastening assembly  16  steadily fixes the holding mechanism  30  on the connecting frame  12  and the operating member  165  of the fastening assembly  16  is relatively close to the locking member  161 . 
         [0102]    When using the bracket  100  and the remote controller  200  of the present disclosure, firstly, the operating member  165  rotates to cause the snap-fitting part  1657  to correspond to the sliding groove  1638  and then the operating member  165  is pulled to move away from the locking member  161 . When the snap-fitting part  1657  slides into the snapping part  1637  along the sliding groove  1638 , the operating member  165  is slightly rotated along a first direction to enable the snap-fitting part  1657  to be dislocated from the sliding groove  1638  and to abut against the side wall of the snapping part  1637 . The operating member  165  continues rotating along the first direction, the operating member  165  pushes against the side wall of the snapping part  1637  via the snap-fitting part  1657 , such that the fastening member  163  as a whole rotates and moves relatively away from the locking member  161 , thereby enabling the two locking parts  3215  to be restored elastically and the connecting part  125  clamped between the two locking parts  3215  to be released. At this time, the holding mechanism  30  is rotatable relative to the seat  10 . 
         [0103]    Secondly, the holding mechanism  30  rotates around the fastening assembly  16  until the holding mechanism  30  rotates to a required operating angle, the operating member  165  rotates along a second direction opposite to the first direction, such that the operating member  165  brings the fastening member  163  to rotate until it is screwed with the locking member  161 , and the fastening member  163  and the locking member  161  together clamp the two locking parts  3215 , thereby fixing the holding mechanism  30  relative to the seat  10 . Again, the operating member  165  slightly rotates along the first direction, and the operating member  165  is released after the snap-fitting member  1657  corresponds to the sliding groove  1638 . Under the action of the elastic restoring force of the resetting member  167 , the snap-fitting part  1657  slides along and moves away from the flange part  1639  along the sliding groove  1638 , and the operating member  165  as a whole is relatively close to the locking member  161 . 
         [0104]    Then, an external force is applied to the pressing member  385 , such that the snap-fitting between the stopping part  3835  and the limiting part  3411  is lifted, and at the same time, the second clamping part  343  is pulled to enable it to move away from the first clamping part  3233 . At this time, the first elastic member  36  is stretched and stores elastic energy. When the spacing between the first clamping part  3233  and the second clamping part  343  meets requirements, the second clamping part  343  and the pressing member  385  are released, such that the first clamping part  3233  is fixed relative to the second clamping part  343 . 
         [0105]    At last, a displaying device such as a mobile phone, a display or a tablet computer is mounted between the first clamping part  3233  and the second clamping part  343 . The pressing member  385  is pressed again, and under the action of the elastic restoring force of the first elastic member  36 , the second clamping member  343  is relatively close to the first clamping part  3233  and abuts against the displaying device. The first elastic member  36  still has the tendency to recover from a deformed state to a normal state and the elastic force thereof is converted into the clamping force for the displaying device, thereby holding the displaying device on the holding mechanism  30 . The pressing member  385  is released again to enable the stopping part  3835  to once again be snapped with the limiting part  3411 , and the clamping part  3233  and the second clamping part  343  are thus further fixed so that the displaying device is firmly clamped on the holding mechanism  30 . 
         [0106]    When the installation angle of the holding mechanism  30  relative to the remote controller body  201  needs to be adjusted, the fastening assembly  16  is released according to the method, such that the holding mechanism  30  is rotatable relative to the seat  10 . The holding mechanism  30  rotates to the needed installation angle, and the holding mechanism  30  is once again fixed relative to the seat  10  via the holding mechanism  16 . Such holding mechanism  30  of the remote controller  200  of the present disclosure uses both the first clamping part  3233  and second clamping part  343  to clamp the displaying device, the second clamping part  343  can move relative to the first clamping part  3233 , such that the bracket  100  can be applied to displaying devices of different sizes and the application range of the holding mechanism is broad. In addition, the holding mechanism  30  limits the distance between the first clamping part  3233  and the second clamping part  343  by snapping with the limiter  383  and the limiting part  3411 , such that the holding mechanism  30  is applicable to displaying devices with larger size differences, which further enlarges the application range of the holding mechanism. The limiter  38  and the limiting part  3411  can be firmly snap-fitted, such that the clamping from the holding mechanism on the displaying device is more reliable. Moreover, the installation position of the holding mechanism  30 , as a whole, relative to the remote controller body  201  can be adjusted via the fastening assembly  16 , such that the use of the remote controller  200  is more flexible. 
         [0107]    It is understood that the resetting member  167  can be omitted and when using the bracket  100 , the operating member  165  can be reset manually. 
         [0108]    It is understood that the first elastic member  36  can be an elastic member of another structure, for example, a torsional spring, a coil spring, an elastic plate, an elastic sleeve, etc., and one end of the first elastic member  36  is connected to the first clamping member  32  and the other end is connected to the second clamping member  34 , thereby providing a restoring force of movement for the second clamping member  34  or providing a clamping force for the second clamping member  34  in an operation state, such that the holding mechanism  30  can hold displaying devices of different sizes. It is understood that the number of the first elastic member  36  can be one or more. 
         [0109]    It is understood that the first elastic member  36  can be omitted, and when using the holding mechanism  30 , the mounting position of the first clamping member  32  relative to the second clamping member  34  can be limited by snapping the limiting assembly  38  of the first clamping member  32  onto the second clamping member  34 , or separating the two from each other, thereby adjusting the distance between the first clamping part  3233  and the second clamping part  343 , and the holding mechanism  30  can be applied to displaying device of different sizes. 
         [0110]    It is understood that the second elastic member  387  can be an elastic member of another structure, for example, a torsional spring, a coil spring, an elastic plate, an elastic sleeve, etc., and one end of the second elastic member  387  abuts against the first clamping member  32  and the other end abuts against the pressing member  385  to provide a restoring force of movement to the limiter  383 . 
         [0111]    It is understood that the second elastic member  387  can be omitted and the limiter  383  may be designed with an elastic structure, and when an external force is applied, the limiter can be snapped with or separated from the limiting part  3411 . Alternatively, the limiter  383  as a whole is arranged on the second housing  323  and can be a pluggable structure, and the stopping part  3835  on the limiter  383  is snapped with or separated from the limiting part  3411  by inserting the limiter  383  into the second housing  323 , or pulling the limiter out from the second housing  323 . 
         [0112]    It is understood that the fastening assembly  16  can be omitted, and when assembling the bracket  100 , the holding mechanism  30  may be fastened on the seat  10  via a screw, 
         [0113]    It is understood that the number of snap-fitting parts  1657  can be one or more, and accordingly, the numbers of the snapping part  1637  and the sliding groove  1638  can also be one or more. When the numbers of the snap-fitting part  1657 , the snapping part  1637  and the sliding groove  1638  are more than one, the plurality of snap-fitting parts  1657  are formed on the inner wall of the first sheathing hole  1651  separate from each other with a spacing in between, and the plurality of snapping parts  1637  are formed on the mating part  1635  separate from each other and is in a one-to-one correspondence relationship with the plurality of snap-fitting parts  1657 . The plurality of sliding grooves  1638 , in a one-to-one correspondence relationship with the plurality of snapping parts  1637 , are formed on the fastening member  163  and are in communication with the corresponding snapping parts  1637 . 
         [0114]    The foregoing disclosure is merely illustrative of the embodiments of the disclosure but not intended to limit the scope of the disclosure. Any equivalent modifications to a structure or process flow, which are made without departing from the specification and the drawings of the disclosure, and a direct or indirect application in other relevant technical fields, shall also fall into the scope of the disclosure.