CN215443548U - Hidden lock for shared bicycle and shared bicycle - Google Patents

Abstract

The application discloses a hidden lock for a sharing bicycle and the sharing bicycle. The concealed lock includes: the locking mechanism comprises a housing and a locking pin, wherein the locking pin is movably arranged in the housing and is configured to move to a locking position relative to the housing; the motor is configured to drive the lock pin to move through the clutch gear set; the clutch gear set comprises a first clutch gear and a second clutch gear which are coaxially arranged, the clutch gear set is in transmission connection with the motor and the lock pin respectively, the first clutch gear is provided with a matching surface departing from the clutch end face, and the first clutch gear and the second clutch gear are configured to be capable of being separated from each other along the axial direction so as to enable the two clutch end faces to be separated; the two ends of the clutch elastic sheet are respectively a fixed end and a floating end, the clutch elastic sheet is pressed on the matching surface, and the clutch elastic sheet is configured to keep the two clutch end surfaces occluded through the elastic action; the inner surface of the shell is provided with a pad platform, and the floating end and the pad platform can form a top stop under the condition that the two clutch end surfaces are separated.

Description

Hidden lock for shared bicycle and shared bicycle

Technical Field

The application relates to the technical field of shared bicycles, in particular to a hidden lock for a shared bicycle and the shared bicycle.

Background

In recent years, with the rapid development of the sharing business operation mode, the sharing bicycle has become an important transportation means for people to go out. The service mode of sharing bicycle has self-service characteristics, and the user rents, rides, parks the lock car on the urban road by oneself can. This service model requires that the operator of the shared bicycle be able to systematically and reliably control and manage the shared bicycle. Otherwise, the user easily encounters the problem of using reliability such as incapability of normally opening and closing the lock when using the sharing bicycle, and the user experience is reduced. How to ensure the use reliability of the shared bicycle is a technical problem to be overcome in the field.

In terms of the opening and closing of the lock, a person skilled in the art tries to add a simple clutch assembly to the lock, and in the process of automatically opening or closing the lock, if the locking structure of the lock is blocked and limited by other parts, the clutch assembly can be separated to protect the driving device and the locking structure in the lock, so as to prevent the lock from being damaged. However, the operational stability of the clutch assembly is often not sufficient for long-term use. After the shared bicycle is thrown into a use environment, the clutch assembly is easy to lose efficacy and damage in a long-time use process.

Disclosure of Invention

It is an object of the present application to provide a new solution for sharing a hidden lock of a bicycle.

According to a first aspect of the present application, there is provided a concealed lock comprising:

a housing and a latch movably disposed within the housing, the latch configured to move to a locked position relative to the housing;

a clutch gear set disposed within the housing and a motor configured to drive movement of the lock pin through the clutch gear set;

the clutch gear set comprises a first clutch gear and a second clutch gear which are coaxially arranged, the clutch gear set is in transmission connection with the motor and the lock pin respectively, a clutch end face of the first clutch gear is meshed with a clutch end face of the second clutch gear, the first clutch gear is provided with a matching face deviating from the clutch end face, and the first clutch gear and the second clutch gear are configured to be capable of being axially away from each other so that the two clutch end faces can be disengaged;

the clutch elastic sheet is arranged on the matching surface in a pressing mode, and the two clutch end faces are kept meshed through the elastic action;

a pad table is formed on an inner surface of the housing at a position opposite to the mating face, and the floating end is configured to be able to form a top stop with the pad table in a state where both the clutch end faces are disengaged.

Optionally, the floating end extends to an edge of the first clutch gear.

Optionally, the floating end extends to a region beyond the first clutch gear.

Optionally, the pillow block is a boss projecting inwardly from an inner surface of the housing.

Optionally, a groove recessed toward an outer side of the housing is formed on an inner surface of the housing at a position opposite to the mating face, and an edge of the groove constitutes the mat stand.

Optionally, the size of the recess is smaller than or equal to the diameter of the first clutch gear.

Optionally, the mating surface forms an orthographic projection area on the inner surface of the housing along the axial direction, and at least a part of the structure of the cushion table is located in the orthographic projection area.

Optionally, still include the separation and reunion pivot, the separation and reunion gear train cover is established on the separation and reunion pivot, the separation and reunion pivot is followed wear out on the separation and reunion gear train, be formed with waist shape hole on the separation and reunion shell fragment, the pivot is followed pass in the waist shape hole.

Optionally, a fixing column is formed on the inner surface of the shell, a threaded hole is formed in the fixing column, and the fixing end is fixedly connected to the top end of the fixing column through a bolt screwed into the threaded hole.

The application also discloses sharing bicycle includes:

the vehicle body assembly comprises a vehicle body main body and a wheel assembly, wherein the wheel assembly is rotatably arranged on the vehicle body main body and comprises a locking piece;

in the concealed lock, the housing is fixedly arranged on the vehicle body main body, and the lock pin and the locking member are locked in a state where the lock pin extends out of the housing.

According to an embodiment of the disclosure, the improved clutch elastic sheet can be matched with the cushion table to generate a reset effect on the clutch gear set, and the reliability of the clutch gear set is improved.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a schematic diagram of the overall structure of a concealed lock provided in one embodiment of the present application;

FIG. 2 is a schematic diagram of an internal structure of a concealed lock according to an embodiment of the present application;

FIG. 3 is a partial cross-sectional view of a concealed lock provided in accordance with one embodiment of the present application;

FIG. 4 is a partial cross-sectional view of a concealed lock provided in accordance with one embodiment of the present application;

FIG. 5 is a partial cross-sectional view of a concealed lock provided in accordance with one embodiment of the present application.

Description of reference numerals:

11. a brake box; 12. a lock case; 13. a cushion table; 14. a groove; 15. fixing a column; 2. a bolt; 3. a motor; 41. a first clutch gear; 42. a second clutch gear; 411/421, clutch end face; 43. a clutch rotating shaft; 5. the elastic sheet is clutched; 51. a fixed end; 52. a floating end; 53. a kidney-shaped hole; 6. and (4) locking pins.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The present application provides a hidden lock for a shared bicycle. The hidden lock at least comprises a shell, a lock pin, a clutch gear set, a motor and a clutch elastic sheet.

The housing is used to house the various components of the concealed lock. The lock pin is movably arranged in the shell and can move to an unlocking position and a locking position. The clutch gear set and the motor are arranged in the shell, and the motor can drive the lock pin to move through the clutch gear set. During the process of driving the lock pin to move by the motor, if the lock pin is blocked by a lock disc of the shared bicycle or is stopped by other parts and cannot move, the continuous driving force of the motor can enable the clutch gear set to be disengaged, and the driving force is released. Therefore, the motor can be protected and can not be blocked and damaged due to the fact that the driving force cannot be released.

The concealed lock finger lock pin can be concealed in a shell or at a gap between different shells, or can be concealed in a frame of a shared bicycle. From the appearance of the lock, and the appearance of the shared bicycle, the user is typically unable to see where the locking pin used to perform the locking of the bicycle is. This design greatly reduces the instances of theft of the shared bicycle that are believed to break the latch.

Fig. 1 shows a hidden lock provided by the present application, which is integrated with a brake device of a shared bicycle, a housing includes a brake box 11, and various components of the hidden lock and a locking member of the shared bicycle can be located in the brake box 11, so as to realize the overall hidden effect of the hidden lock.

Fig. 2 and 3 show the internal structure of a concealed lock, which may include a lock housing 12, the lock housing 12 being disposed within the brake housing 11. The clutch gear set includes a first clutch gear 41 and a second clutch gear 42 which are coaxially disposed. The clutch gear set is in transmission connection with the motor 3 and the lock pin 6 respectively. For example, the first clutch gear 41 may be in driving connection with the electric motor 3, and the second clutch gear 42 may be in driving connection with the locking pin 6. The gearing between the motor 3 and the latch 6 can be disconnected by a clutch gear set. The first clutch gear 41 may be directly engaged with the output shaft of the motor 3, the output gear, etc., i.e., form a direct transmission connection, or may be indirectly connected with the output shaft of the motor through other gears, worm gears, etc. Similarly, the second clutch gear may be in mesh with the locking pin, i.e. form a direct transmission connection. The latch pin may be formed with a rack structure for engagement. The second meshing gear can also form indirect transmission connection with the lock pin through other gears, worm gears and other structures.

As shown in fig. 3 and 4, the first clutch gear 41 and the second clutch gear 42 are coaxially disposed, the first clutch gear 41 has a clutch end surface 411, and the second clutch gear 42 has a clutch end surface 421. In the engaged state of the clutch gear set, the clutch end face 411 of the first clutch gear 41 and the second clutch end face 421 of the second clutch gear 42 are in contact with each other, and both clutch end faces are engaged with each other, as shown in fig. 3. The transmission force from the first clutch gear 41 can be transmitted to the second clutch gear 42 through both clutch end surfaces, and the second clutch gear 42 can transmit the driving force to the lock pin 6.

The first clutch gear 41 and/or the second clutch gear 42 can move in the axial direction thereof, so that they can move away from and close to each other in the axial direction. In this embodiment, in the state shown in fig. 3, the two clutch gears are axially abutted against each other, and the two clutch end surfaces are engaged with each other. When the second clutch gear 42 is unable to rotate due to resistance and the first clutch gear 41 tends to rotate due to the continuous driving force of the motor 3, the clutch end faces of the first clutch gear 41 and the second clutch gear 42 are pushed against each other, and the mutual acting force between the end faces causes the first clutch gear to move in the axial direction away from the second clutch gear 42. In this way, the two clutch end faces are disengaged from each other, i.e. are not in an engaged state and do not transmit rotational driving force. Fig. 4 and 5 show a state in which the clutch end surface 411 of the first clutch gear 41 and the clutch end surface 421 of the second clutch gear 42 are pushed against each other and separated, and the first clutch gear 41 can be rotated by the driving of the motor 3 without transmitting the rotational driving force to the second clutch gear 42.

The application clutch end face separation means that two clutch end faces are not meshed any more, the acting force of gear rotation can not be transmitted mutually, and the two clutch end faces can still have a part to be contacted mutually so as to achieve the effects of mutually pushing and enabling the first clutch gear to be far away from the second clutch gear.

In other embodiments, a scheme in which both the first clutch gear and the second clutch gear are movable in the axial direction, or a scheme in which only the second clutch gear is movable in the axial direction may be employed. Furthermore, the relationship of the drive train does not restrict the motor from having to be drivingly connected to the first clutch gear and the lock pin from having to be drivingly connected to the second clutch gear. In other embodiments, the first clutch gear may be drivingly connected to the locking pin and the motor may be drivingly connected to the second clutch gear.

The clutch elastic piece 5 is arranged in the lock shell 12, as shown in fig. 2 and 3, the clutch elastic piece 5 has a fixed end 51 and a floating end 52, and the fixed end 51 is fixedly connected in the lock shell 12. The first clutch gear 41 has a mating surface deviating from the clutch end surface 411, and the main part of the clutch elastic piece 5 presses on the mating surface. The clutch elastic sheet 5 provides extrusion acting force for the clutch gear set along the axial direction, so that the clutch end faces of the first clutch gear and the second clutch gear are mutually extruded and meshed. In this way, the clutch gear set can generally be maintained in an engaged state.

In the embodiment shown in fig. 3 and 4, the clutch dome 5 may be pressed against the first clutch gear 41 which is axially movable. In other embodiments, if the second clutch gear 42 can move axially, the clutch elastic piece 5 can press on the second clutch gear 42. In a special embodiment, if both the first and the second clutch gear 42 can be moved axially, two clutch domes 5 can be provided, which bear on the two clutch gears, respectively. The clutch elastic sheet 5 is pressed on the first clutch gear and/or the second clutch gear which can move axially.

In practical application, if the movement of the lock pin is blocked, the driving force of the motor acts on the two clutch end faces, the driving force can enable the first clutch gear and the second clutch gear to overcome the acting force of the clutch elastic sheet and to be away from each other along the axial direction, the two clutch end faces are separated, and the torsional acting force is not transmitted mutually any more.

As shown in fig. 3, a pad stage 13 is formed on the inner surface of the housing, and the pad stage 13 is located at the inner surface of the housing, which the mating surface faces. At the pad 13, the wall thickness of the housing is thicker relative to the wall thickness of the housing at the corresponding location near the axis of the clutch gear set. The cushion table 13 is used for being matched with the clutch elastic sheet 5 to limit the degree of mutual separation of the two gears of the clutch gear set and prevent the two clutch gears from completely loosening. In particular, in the case that the fixed end 51 may be slightly released due to long-term use of the elastic clutch plate 5, the pad 13 and the floating end 52 can cooperate to limit the position of the movable first clutch gear 41 in the axial direction, so as to prevent the first clutch gear 41 from being completely released relative to the second clutch gear 42. Further, under the limiting action of the cushion table, the fixed end 51 of the clutch elastic sheet is slightly loosened in time, and the clutch elastic sheet can provide enough pressure for the first clutch gear integrally, so that the clutch elastic sheet can be restored to the position meshed with the second clutch gear.

As shown in fig. 4, in a state where the clutch end surfaces of the first clutch gear 41 and the second clutch gear 42 are disengaged from each other, the first clutch gear 41 moves upward and pushes up the clutch dome 5. The floating end 52 of the clutch spring 5 is jacked up to form a top stop relationship with the cushion table 13. The cushion table 13 prevents the clutch spring 5 from further upwarping. If the first clutch gear moves upwards further, the clutch spring plate can generate larger elastic deformation. Therefore, when the first clutch gear can return to move downwards, the elastic acting force generated by the clutch elastic sheet is enough to push the first clutch gear to restore to the position meshed with the second clutch gear.

The method and the device consider that the phenomena of fatigue, looseness and the like of parts of the shared bicycle in the long-term and repeated use process. The cushion table matched with the floating end is formed on the inner surface of the shell, so that the problem of function failure of the clutch gear set caused by fatigue deformation of the clutch elastic sheet or looseness of the fixed end can be effectively solved. The functional reliability of the clutch gear set is effectively improved by the matching mode of the cushion table and the clutch elastic sheet. On the other hand, the cushion table is simple in structure and occupies a small space, the influence on the overall structure of the shell is small, the cost of the shell in the production and assembly processes is effectively controlled, and the requirement for controlling the operation cost in the field of sharing bicycles is met.

Alternatively, as shown in fig. 3 and 4, the floating end 52 may extend to an edge of the first clutch gear 41. The overall length of the clutch spring 5 in the design mode is longer. On the one hand, the elastic deformation acting force that the whole elastic sheet 5 that can produce of separation and reunion is bigger, and it can be better provides the effort that resets, keeps clutch gear set to be in the interlock state. On the other hand, the floating end 52 of the clutch elastic sheet 5 with longer length is tilted to a larger extent, and is easier to form a top stop fit with the cushion table 13. Fig. 5 shows a state where the floating end 52 is tilted. Thus, in the deformation process of the clutch elastic sheet 5, the cushion table can limit the clutch elastic sheet together with the fixed end earlier, and the possibility of fatigue and looseness of the fixed end is reduced.

Alternatively, the floating end 52 may extend to an area outside the first clutch gear 41. The whole clutch elastic sheet 5 is further extended, so that the floating end 52 and the cushion table 13 can be better matched. Effectively take precautions against the separation and reunion shell fragment and appear out of shape tired or the not hard up problem of stiff end, timely separation and reunion shell fragment under the condition that above-mentioned problem appears, the end that floats can be earlier in the deformation process with fill up the platform contact, fill up the platform and can assist the realization to the action of reseing of first clutch gear.

In addition, the floating end of the clutch elastic sheet extends to the area outside the edge of the first clutch gear, so that the clutch elastic sheet completely spans the first clutch gear in the radial direction. Under the condition that the first clutch gear moves towards the pad table in the axial direction, the clutch elastic sheet can be completely clamped between the first clutch gear and the pad table, so that the first clutch gear and the pad table are prevented from colliding and interfering, and the interference between the first clutch gear and the pad table is avoided to cause adverse effects on the normal clutch action and structure of the first clutch gear.

Alternatively, the pillow block 13 may be a boss protruding inward from the inner surface of the housing. Such an embodiment may be applied in a case where the entire case is relatively thick or the entire structural reliability is good, and the portion of the case opposite to the mating face does not need to be thickened to improve the structural reliability. The boss occupies less space, and the forming processing difficulty cannot be increased. The boss is formed in a region opposite to the mating face and corresponds to the floating end in position.

In another alternative embodiment, as shown in fig. 3 and 4, in the region where the mating surfaces are opposite, a groove 14 recessed toward the outside of the housing is formed on the inner surface of the housing, the recess 14 is shallow in depth, a step structure is formed at the edge of the groove 14, and the edge of the groove 14 constitutes the cushion table 13. The groove 14 leaves enough space for the upward bending deformation of the clutch elastic sheet 5, so that the clutch elastic sheet 5 can give full play to the function of providing elastic restoring force. And, the space avoided by the groove 14 also leaves a space margin for the upward movement of the first clutch gear 41.

The thickness of the shell is relatively thick in the region outside the groove 14 and the wall thickness of the shell in the groove 14 is relatively thin in the step structure at the edge of the groove 14. I.e. the structural strength of the shell at the thickened pad 13 is higher. Such an embodiment can be used on the one hand to increase the structural reliability of the housing and on the other hand to adapt to solutions in which the internal space of the housing is limited or in which a relatively flat inner surface of the housing is required in order to provide further components. The cushion table can be used for matching with the floating end and can also be used as a component for strengthening the integral structural strength of the shell. The shallow recess of degree of depth has then left out the deformation space for the separation and reunion shell fragment, and this design make full use of the inside structure of casing.

Optionally, the size of the groove 14 is smaller than or equal to the diameter of the first clutch gear 41. In this particular embodiment, the first clutch gear 41 is adjacent to the recess 14. The groove 14 may be a circular groove or a rectangular groove, and the size of the edge of the groove 14 is smaller than or equal to the diameter of the first clutch gear 41. This design prevents the clutch gear set from jamming in the recess 14 during axial movement. The groove is prevented from interfering with the rotation and axial movement of the clutch gear set. If the clutch gear set is clamped at the edge of the groove during axial movement, namely at the cushion table, the clutch gear set cannot be reset to realize meshing of the two clutch gears, or the clutch gear set cannot normally rotate. In this regard, this alternative embodiment sizes the recess to be smaller than the diameter of the gear on the side of the clutch gear set adjacent the recess to prevent interference between the gear and the recess. As shown in fig. 4, even if the first clutch gear 41 moves a large distance in the axial direction, its teeth do not get stuck at the edge of the recess 14, i.e., do not interfere with the dolly 13.

Alternatively, as shown in fig. 3, at least a portion of the structure of the pad table 13 is located in the region of the inner surface of the housing that the mating surface faces. The mating surface forms an orthographic projection area on the inner surface of the housing in the axial direction of the clutch gear group, and the cushion table 13 is located at least partially in the orthographic projection area. This kind of design make the separation and reunion shell fragment produce deformation in-process can earlier with fill up the platform contact, fill up the platform and the stiff end can form the restriction to the deformation process of separation and reunion shell fragment jointly, reduce the not hard up risk of stiff end.

Hide the lock and include separation and reunion pivot 43, separation and reunion pivot 43 can fixed setting be in the casing, the separation and reunion gear train cover is established separation and reunion pivot 43 is last. Alternatively, as shown in fig. 2 to 5, the clutch rotating shaft 43 may pass through the clutch gear set. The clutch shaft 43 may extend into the groove 14, and the top surface of the clutch shaft 43 may abut against the inner surface of the housing. As shown in fig. 2, a kidney-shaped hole 53 may be formed in the clutch elastic piece 5, and the rotating shaft penetrates through the kidney-shaped hole 53. The design scheme enables the clutch elastic sheet 5 to penetrate through the axis of the clutch gear set, so that the clutch elastic sheet 5 can form a more stable elastic effect on the clutch gear set, the stress of the clutch gear set is more uniform, and the problems of deviation and the like are not easy to occur. The hole on the rotating shaft is a kidney-shaped hole 53, and the design can avoid radial relative interference between the clutch elastic sheet and the clutch rotating shaft. Since the clutch elastic sheet may slightly move radially or rotate when elastically deformed, the deformation feature may cause the opening of the clutch elastic sheet to collide with the clutch rotating shaft. Thus, this alternative embodiment employs a kidney-shaped aperture, avoiding the problems described above.

In the embodiment that adopts the recess, the separation and reunion pivot of wearing out can push up on the interior top surface of recess, the both ends homoenergetic of pivot can obtain the support of casing, positioning action, and the stability of pivot obtains improving.

Alternatively, as shown in fig. 2 to 5, a fixing post 15 may be formed on an inner surface of the housing, and a screw hole may be formed in the fixing post 15. The fixed end 51 is fixed at the top end of the fixed column 15 through a bolt 2 screwed into the threaded hole. The fixing post 15 can raise the fixing end 51 to be adapted to the height of the clutch gear set in the axial direction. On the other hand, the fixing column 15 also enables the clutch elastic sheet 5 to be close to the cushion table, so that the deformation matching relation is convenient to realize. The fixed end 51 is fixed on the fixed column through the bolt 2, so that the fixed connection reliability of the fixed end can be effectively increased, and the possibility that the fixed end per se is loosened relative to the shell is reduced. In addition, the fixing column is high in structural engagement degree with the bolt in a thread locking mode, occupies a small space, is good in reliability, and is suitable for being applied to the technical scheme that the internal space of a hidden lock is limited and the space needs to be fully utilized.

The application also provides a sharing bicycle which can be a bicycle, an electric bicycle, a power-assisted bicycle and an electric two-wheeled vehicle. Ride rides that can be applicable to shared lease are all accorded with the sharing bicycle of this application.

The sharing bicycle comprises a bicycle body, a wheel assembly and the hidden lock. The wheel assembly is rotatably disposed on the vehicle body, and the wheel assembly includes a locking member. The locking piece can be a lock disc with holes, a fixing block with locking pin slots and the like, and a hub or a spoke of the wheel assembly can also be used as the locking piece. The locking member is rotatable with the wheel assembly.

The housing of the concealed lock is fixedly provided on the vehicle body, the lock pin is locked with the lock member in a state where the lock pin is moved to the lock-off position, and the lock pin prevents the wheel assembly from rotating relative to the vehicle body.

Alternatively, the locking member may be a lock disc, which may be provided on the brake disc. The housing may include a brake housing 11 and a lock housing 12. The lock disc and the brake disc are positioned in the brake box 11 and can rotate with the wheel assembly in the brake box 11. While the lock housing 12 and the locking pin 6 therein do not rotate with the wheel assembly. The locking pin 6 extends from the housing and is inserted into the disc to prevent rotation of the wheel assembly. And the lock pin can not be completely exposed out of the brake box when the lock pin performs the locking action. The brake box plays the roles of hiding and protecting the lock pin.

Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims (10)

1. A hidden lock for a shared bicycle, comprising:

a housing and a latch movably disposed within the housing, the latch configured to move to a locked position relative to the housing;

a clutch gear set disposed within the housing and a motor configured to drive movement of the lock pin through the clutch gear set;

the clutch gear set comprises a first clutch gear and a second clutch gear which are coaxially arranged, the clutch gear set is in transmission connection with the motor and the lock pin respectively, a clutch end face of the first clutch gear is meshed with a clutch end face of the second clutch gear, the first clutch gear is provided with a matching face deviating from the clutch end face, and the first clutch gear and the second clutch gear are configured to be capable of being axially away from each other so that the two clutch end faces can be disengaged;

the clutch elastic sheet is arranged on the matching surface in a pressing mode, and the two clutch end faces are kept meshed through the elastic action;

a pad table is formed on an inner surface of the housing at a position opposite to the mating face, and the floating end is configured to be able to form a top stop with the pad table in a state where both the clutch end faces are disengaged.

2. The concealed lock for a shared bicycle according to claim 1, wherein the floating end extends to an edge of the first clutch gear.

3. The concealed lock for a shared bicycle according to claim 2, wherein the floating end extends to an area outside of the first clutch gear.

4. The concealed lock for a shared bicycle according to claim 1, wherein the bolster is a boss projecting inwardly from an inner surface of the shell.

5. The concealed lock for a shared bicycle according to claim 1, wherein a groove recessed toward an outside of the housing is formed on an inner surface of the housing at a position opposite to the mating face, an edge of the groove constituting the bed.

6. The concealed lock for a shared bicycle according to claim 5, wherein the size of the recess is less than or equal to the diameter of the first clutch gear.

7. The concealed lock for a shared bicycle according to claim 1, wherein the mating surface forms an orthographic projection area on the housing inner surface in the axial direction, at least a portion of the structure of the pad stage being located within the orthographic projection area.

8. The hidden lock for the shared bicycle according to claim 1, further comprising a clutch rotating shaft, wherein the clutch gear set is sleeved on the clutch rotating shaft, the clutch rotating shaft penetrates out of the clutch gear set, a waist-shaped hole is formed in the clutch elastic sheet, and the rotating shaft penetrates through the waist-shaped hole.

9. The concealed lock for a shared bicycle according to claim 1, wherein a fixing post is formed on an inner surface of the housing, a threaded hole is formed in the fixing post, and the fixing end is fixedly connected to a top end of the fixing post by a bolt screwed into the threaded hole.

10. A shared bicycle, comprising:

the vehicle body assembly comprises a vehicle body main body and a wheel assembly, wherein the wheel assembly is rotatably arranged on the vehicle body main body and comprises a locking piece;

the concealed lock according to any one of claims 1 to 9, wherein said housing is fixedly provided on said vehicle body, and said lock pin is locked with said lock member in a state where said lock pin is projected out of said housing.

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