Locking mechanism

Abstract

The locking mechanism comprises a machine shell, a push rod lock, an elastic piece, a rotating disc and a motor, the push rod lock, the elastic piece, the rotating disc and the motor are installed in the machine shell, at least part of the push rod lock is arranged in the machine shell and is in sliding fit with the machine shell, and the push rod lock comprises a spring bolt; the elastic piece is assembled between the push rod lock and the inner circumferential wall of the machine shell in a pre-compression mode, and under pushing of the elastic piece, the push rod lock can drive the spring bolt to move in the direction away from the machine shell so as to lock a target object; the rotating disc is rotationally installed in the machine shell, an abutting and pushing block is arranged on the rotating disc, and the abutting and pushing block can be driven by the rotating disc to push and push the push rod lock to compress the elastic piece and enable the spring bolt to retract so that locking of the spring bolt to a target object can be relieved; the motor is in transmission connection with the turntable and used for driving the turntable to rotate in the shell. According to the locking mechanism, the motor is arranged, so that when the locking mechanism works, the motor can directly control the lock tongue to lock or unlock the target object, that is, the work of the locking mechanism is not affected by the external environment, and the function of improving the working stability is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to mechanical locking, and particularly relates to a locking mechanism. Background Art

[0002] The locking mechanism installed on the equipment as an independent module to realize the automatic locking or unlocking of the target in the equipment is usually an electromagnetic lock. The electromagnetic lock uses the principle of electromagnetism to control the telescopic movement of the movable iron core in the electromagnetic lock and to extend or retract the lock tongue connected to the movable iron core to achieve the locking or unlocking of the electromagnetic lock when it is working. However, due to the working principle of the electromagnetic lock, once there is a strong magnet in the peripheral environment of the electromagnetic lock, it will directly affect the normal operation of the electromagnetic lock; in addition, if the electromagnetic lock is tilted when assembled in the equipment, since the lock tongue on the electromagnetic lock is in an extended state, it is easy for the target to get stuck between the lock tongue when entering and exiting the equipment, thereby reducing the working stability of the electromagnetic lock. Utility Model Content

[0003] In view of this, it is necessary to provide a locking mechanism for solving the above technical problems.

[0004] A locking mechanism, comprising:

[0005] chassis;

[0006] a push rod lock, at least partially mounted in the housing and slidably engaged with the housing, wherein the push rod lock includes a lock tongue;

[0007] An elastic member is assembled between the push rod lock and the inner peripheral wall of the housing in a pre-compressed manner. Under the push of the elastic member, the push rod lock can drive the lock tongue to move in a direction away from the housing to lock the target object;

[0008] A rotating disk is rotatably mounted in the housing, wherein a push block is provided on the rotating disk, and the push block can push the push rod lock to compress the elastic member and retract the lock tongue under the drive of the rotating disk, so as to release the lock tongue from locking the target object;

[0009] The motor is installed in the housing and is drivingly connected to the turntable, and is used for driving the turntable to rotate in the housing.

[0010] It can be understood that the rotation of the turntable is controlled by a motor, and the push block and the elastic member on the turntable are used to push the push rod lock to control the movement of the lock tongue on the push rod lock to lock or unlock the target object, so that when the locking mechanism is working, the motor can directly control the lock tongue to lock or unlock the target object, which can make the operation of the locking mechanism not affected by the external environment and has the effect of improving the working stability; at the same time, the housing integrates the motor, turntable, elastic member and push rod lock into one, which not only can effectively protect the motor, turntable, elastic member and push rod lock, but also realizes the modularization of the overall structure of the locking mechanism, so as to facilitate the subsequent assembly and application of the locking mechanism.

[0011] In one embodiment, the push block is eccentrically arranged relative to the rotating disk;

[0012] Wherein, the push rod lock further comprises a push fitting plate, and the push rod lock can be in abutment with the push block through the push fitting plate.

[0013] It can be understood that the eccentrically arranged push block is used to push the push mating plate to achieve the retraction drive of the push rod lock on the casing. In this way, the movement stroke of the push block when pushing the push rod lock to compress the elastic part can be increased, ensuring that the lock tongue can release the lock on the target object.

[0014] In one embodiment, the push block has a push surface, and the push block can push the push fitting plate through the push surface;

[0015] Wherein, the thrust surface is configured as an arc surface.

[0016] It can be understood that the pushing surface of the pushing block that pushes the pushing matching plate is set to an arc surface, so that the smoothness of the pushing block pushing the pushing matching plate can be improved.

[0017] In one embodiment, the push rod lock further includes a signal trigger plate, which is disposed in the area where the lock tongue is located and connected to the lock tongue, and the signal trigger plate can perform telescopic movement relative to the housing under the drive of the lock tongue;

[0018] When the lock tongue locks the target object, the signal triggering plate can trigger the signal sensor.

[0019] It can be understood that the signal trigger plate triggers the signal sensor when the lock tongue locks the target object. In this way, signal feedback can be provided for the locking of the target object by the locking mechanism to meet the use requirements of automatic control of the locking mechanism.

[0020] In one of the embodiments, a limit member is formed on the housing, and the limit member is arranged on the movement path of the signal trigger plate, and the limit member can abut against the signal trigger plate to limit the movement of the signal trigger plate when it is extended from the housing and stop the push rod lock.

[0021] It can be understood that the collision between the upper limit member of the casing and the signal trigger plate is used to limit the movement of the push rod lock when locking the target object. In this way, the lock tongue can be prevented from interfering with the target object when locking the target object, which has the effect of extending the service life of the locking mechanism.

[0022] In one embodiment, the push rod lock also includes a first positioning member, and a second positioning member is formed on the inner wall of the housing. The first positioning member and the second positioning member are arranged at both ends of the elastic member and are respectively plugged into and matched with the elastic member for assembly and positioning of the elastic member.

[0023] It can be understood that the first positioning member and the second positioning member are used to limit the assembly of the elastic member, so that the stability of the assembly of the elastic member between the push rod lock and the inner wall of the casing can be improved, thereby having the effect of improving the working stability of the locking mechanism.

[0024] In one embodiment, the push rod lock further comprises a sliding plate, and the push rod lock can be slidably matched with the housing through the sliding plate;

[0025] Wherein, the elastic member and the rotating disk are arranged on the upper and lower sides of the sliding plate.

[0026] In one embodiment, the sliding plate includes a sliding main board and two sliding rail assemblies, and the two sliding rail assemblies are mounted on the sliding main board and respectively slidably cooperate with the housing;

[0027] Wherein, each slide rail assembly includes a first slide rail, a second slide rail and a third slide rail, the first slide rail is arranged on the side end surface of the sliding main board, and the second slide rail and the third slide rail are arranged on the upper and lower side surfaces of the sliding main board.

[0028] It can be understood that the sliding fit between the push rod lock and the casing is achieved by the sliding fit between the slide rail assembly and the casing. In this way, the contact area between the push rod lock and the casing when they are slidingly fitted can be reduced, which has the effect of reducing the friction resistance of the push rod lock when it slides relative to the casing, so as to drive the push rod lock to slide in the casing; at the same time, each slide rail assembly slides with the casing in three directions respectively, so that the stability of the push rod lock when it slides in the casing can be improved.

[0029] In one embodiment, the turntable includes a turntable body and an annular boss, the annular boss is arranged on the outer peripheral surface of the turntable body, and the turntable can be rotatably connected to the housing through the annular boss;

[0030] Wherein, the push block is arranged on an end surface of the turntable body away from the motor.

[0031] In one embodiment, the housing includes a first shell and a second shell, and the first shell is detachably connected to the second shell;

[0032] The first shell and the second shell together form a locking channel, and the locking tongue is arranged to penetrate the locking channel.

[0033] It can be understood that the housing is formed by combining the detachably connected first housing and the second housing, so that the motor, the turntable, the elastic member and the push rod lock can be easily assembled in the housing.

[0034] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0035] The locking mechanism for which protection is sought in the present application uses a motor to control the rotation of a turntable, and then utilizes the push block on the turntable and the elastic member to push up the push rod lock to control the movement of a lock tongue on the push rod lock to lock or unlock a target object, so that when the locking mechanism is working, the motor can directly control the lock tongue to lock or unlock the target object, that is, the operation of the locking mechanism is not affected by the external environment, which has the effect of improving the working stability; at the same time, the housing integrates the motor, turntable, elastic member and push rod lock into one, which not only can effectively protect the motor, turntable, elastic member and push rod lock, but also realizes the modularization of the overall structure of the locking mechanism, so as to facilitate the subsequent assembly and application of the locking mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 A schematic diagram of the structure of a locking mechanism provided in one embodiment of the present application;

[0038] Figure 2 An exploded view of a locking mechanism provided in one embodiment of the present application;

[0039] Figure 3A cross-sectional view of a locking mechanism provided by an embodiment of the present application, wherein the locking tongue is in a retracted state;

[0040] Figure 4 A cross-sectional view of a locking mechanism provided by an embodiment of the present application, wherein the locking tongue is in an extended state;

[0041] Figure 5 A schematic diagram of the structure of a push rod lock provided in one embodiment of the present application;

[0042] Figure 6 A schematic diagram of the structure of a turntable provided in one embodiment of the present application.

[0043] 1. The locking mechanism is shown in FIG. 1 ; 10. The casing is shown in FIG. 1 ; 11. The first shell is shown in FIG. 1 ; 12. The second shell is shown in FIG. 1 ; 101. The inner wall is shown in FIG. 1 ; 1011. The second positioning member is shown in FIG. 1 ; 110. The locking channel is shown in FIG. 1 ; 120. The limiting member is shown in FIG. 1 ; 20. The push rod lock is shown in FIG. 1 ; 21. The locking tongue is shown in FIG. 1 ; 22. The push fitting plate is shown in FIG. 23. The signal trigger plate is shown in FIG. 24. The first positioning member is shown in FIG. 25. The sliding plate is shown in FIG. 251. The sliding main board is shown in FIG. 2511. The side end surface is shown in FIG. 252. The slide rail assembly is shown in FIG. 2521. The first slide rail is shown in FIG. 2522. The second slide rail is shown in FIG. 2523. The third slide rail is shown in FIG. 30. The elastic member is shown in FIG. 40. The turntable is shown in FIG. 41. The push block is shown in FIG. 411. The push surface is shown in FIG. 42. The turntable body is shown in FIG. 421. The outer peripheral surface is shown in FIG. 43. The annular boss is shown in FIG. 50. The motor is shown in FIG. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] It should be noted that when an element is referred to as being "provided on" another element, it may be directly provided on the other element or there may be a central element. When an element is considered to be "provided on" another element, it may be directly provided on the other element or there may be a central element at the same time. When an element is considered to be "fixed to" another element, it may be directly fixed to the other element or there may be a central element at the same time.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0047] like Figures 1 to 4 As shown, a locking mechanism 100 provided in an embodiment of the present application includes a housing 10, a push rod lock 20, an elastic member 30, a turntable 40 and a motor 50. The push rod lock 20 is at least partially disposed in the housing 10 and slidably cooperates with the housing 10, wherein the push rod lock 20 includes a lock tongue 21; the elastic member 30 is pre-compressed and assembled between the push rod lock 20 and the inner peripheral wall 101 of the housing 10. Under the push of the elastic member 30, the push rod lock 20 can drive the lock tongue 21 to move away from the housing 10. The rotating disk 40 is rotatably mounted in the housing 10, wherein a push block 41 is provided on the rotating disk 40, and the push block 41 can push the push rod lock 20 to compress the elastic member 30 under the drive of the rotating disk 40, and retract the lock tongue 21, so as to release the lock of the lock tongue 21 on the target object; the motor 50 is installed in the housing 10 and is connected to the rotating disk 40 for driving the rotating disk 40 to drive the rotating disk 40 to rotate in the housing 10. That is to say, when the locking mechanism 100 is working, the motor 50 can be used to control whether the lock tongue 21 on the push rod lock 20 extends out of the housing 10, and realize the control of locking or unlocking the target object. Here, the target object is specifically applied to the power bank in the power bank cabinet, and accordingly, the locking mechanism 100 of the present application is assembled to the power bank cabinet as a module.

[0048] It can be understood that the motor 50 is used to control the rotation of the turntable 40, and the push block 41 on the turntable 40 and the elastic member 30 push the push rod lock 20 to control the movement of the lock tongue 21 on the push rod lock 20 to lock or unlock the target object, so that when the locking mechanism 100 is working, the motor 50 can directly control the lock tongue 21 to lock or unlock the target object, that is, the operation of the locking mechanism 100 is not affected by the external environment, which has the effect of improving the working stability; at the same time, the housing 10 integrates the motor 50, the turntable 40, the elastic member 30 and the push rod lock 20 into one, which not only can effectively protect the motor 50, the turntable 40, the elastic member 30 and the push rod lock 20, but also realizes the modularization of the overall structure of the locking mechanism 100, so as to facilitate the subsequent assembly and application of the locking mechanism 100.

[0049] like Figure 2As shown, in one embodiment, the housing 10 includes a first housing 11 and a second housing 12, and the first housing 11 is detachably connected to the second housing 12; wherein the first housing 11 and the second housing 12 enclose a locking channel 110, and the locking tongue 21 is arranged through the locking channel 110. This makes it easy to assemble the motor 50, the rotating disk 40, the elastic member 30 and the push rod lock 20 in the housing 10. Here, the first housing 11 and the second housing 12 can be assembled and limited by a buckle first, and then connected and fixed by screws, bolts and other connecting members, which can further facilitate the assembly between the first housing 11 and the second housing 12.

[0050] like Figure 3 , Figure 4 and Figure 6 As shown, in one embodiment, the push block 41 is eccentrically arranged relative to the rotary disk 40; wherein the push rod lock 20 further includes a push matching plate 22, and the push rod lock 20 can be abutted against the push block 41 through the push matching plate 22. That is to say, when the push block 41 rotates in the housing 10 driven by the rotary disk 40, the push block 41 can drive the push rod lock 20 to retract by pushing against the push matching plate 22, thereby increasing the movement stroke when the push block 41 pushes against the push rod lock 20 to compress the elastic member 30, ensuring that the lock tongue 21 can release the lock on the target object. Here, the length direction of the push block 41 can pass through the center of the end face of the rotary disk 40 at the position where the push block 41 is located.

[0051] In this embodiment, the push block 41 has a push surface 411, which is set as an arc surface, and the push block 41 can push the push-matching plate 22 through the push surface 411. In this way, by utilizing the structural feature that the push surface 411 is an arc surface, the push block 41 can push the push-matching plate 22 along the arc direction of the push surface 411 when the push block 41 rotates with the turntable 40, thereby improving the smoothness of the push block 41 pushing the push-matching plate 22.

[0052] like Figures 3 to 5As shown, in one embodiment, the push rod lock 20 also includes a signal trigger plate 23, which is arranged in the area where the lock tongue 21 is located and connected to the lock tongue 21, and the signal trigger plate 23 can be driven by the lock tongue 21 to make a telescopic movement relative to the housing 10; when the lock tongue 21 locks the target object, the signal trigger plate 23 can trigger the signal sensor. In other words, the signal trigger plate 23 on the push rod lock 20 can provide signal feedback when the lock tongue 21 locks the target object, so as to meet the use requirements of the automatic control of the locking mechanism 100. Here, when the lock tongue 21 releases the lock on the target object, the signal trigger plate 23 is accommodated in the housing 10 as a whole to prevent the signal sensor from being mistakenly triggered by the signal trigger plate 23. Of course, the above-mentioned signal sensor can be set independently of the housing 10, or it can be installed on the housing 10. It can be specifically set according to the needs of use, which will not be elaborated here.

[0053] In this embodiment, a limiting member 120 is formed on the housing 10, and the limiting member 120 is arranged on the movement path of the signal trigger plate 23, and the limiting member 120 can collide with the signal trigger plate 23 to limit the movement of the signal trigger plate 23 when it is extended from the housing 10, and stop the push rod lock 20. In other words, in addition to being able to provide signal feedback when the lock tongue 21 locks the target object, the signal trigger plate 23 can also limit the maximum extension amount of the lock tongue 21 on the push rod lock 20 from the housing 10, so that the lock tongue 21 can be prevented from interfering with the target object when locking the target object, which has the effect of extending the service life of the locking mechanism 100. Here, the limiting member 120 is arranged at the part where the first housing 11 and the second housing 12 are closed, and specifically, the limiting member 120 matching the signal trigger plate 23 can be respectively arranged on the first housing 11 and the second housing 12.

[0054] like Figures 3 to 5 As shown, in one embodiment, the push rod lock 20 further includes a first positioning member 24, and a second positioning member 1011 is formed on the inner peripheral wall 101 of the housing 10. The first positioning member 24 and the second positioning member 1011 are arranged at both ends of the elastic member 30 and are respectively plugged and matched with the elastic member 30 to limit the assembly of the elastic member 30. In this way, the stability of the assembly of the elastic member 30 between the push rod lock 20 and the inner peripheral wall 101 of the housing 10 can be improved, thereby having the effect of improving the working stability of the locking mechanism 100. Here, the first positioning member 24 and the second positioning member 1011 are both set as positioning convex columns that can be inserted into the elastic member 30. Of course, for those skilled in the art, the first positioning member 24 and / or the second positioning member 1011 can also be set as a groove matching the end of the elastic member 30. It should be noted that the above-mentioned elastic member 30 is set as a spring, a rubber sleeve, or other objects with high elasticity, which will not be elaborated here.

[0055] like Figure 5As shown, in one embodiment, the push rod lock 20 also includes a sliding plate 25, and the push rod lock 20 can slide with the housing 10 through the sliding plate 25, and specifically realize the sliding assembly of the push rod lock 20 in the housing 10; wherein, the elastic member 30 and the turntable 40 are arranged on the upper and lower sides of the sliding plate 25.

[0056] like Figure 5 As shown, in this embodiment, the sliding plate 25 includes a sliding main board 251 and two slide rail assemblies 252, and the two slide rail assemblies 252 are installed on the sliding main board 251 and slide with the casing 10 respectively; wherein each slide rail assembly 252 includes a first slide rail 2521, a second slide rail 2522 and a third slide rail 2523, the first slide rail 2521 is arranged on the side end surface 2511 of the sliding main board, and the second slide rail 2522 and the third slide rail 2523 are arranged on the upper and lower side surfaces of the sliding main board 251, so that the contact area between the push rod lock 20 and the casing 10 when the two are slidingly matched can be reduced, and the friction resistance when the push rod lock 20 slides relative to the casing 10 can be reduced, so as to drive the push rod lock 20 to slide in the casing 10; at the same time, each slide rail assembly 252 slides with the casing 10 from three directions respectively, so that the stability of the push rod lock 20 when sliding in the casing 10 can be improved.

[0057] like Figure 6 As shown, in one embodiment, the turntable 40 includes a turntable body 42 and an annular boss 43, the annular boss 43 is arranged on the outer peripheral surface 421 of the turntable body 42, and the turntable 40 can be rotatably connected to the casing 10 through the annular boss 43; wherein, the push block 41 is arranged on an end surface of the turntable body 42 facing away from the motor 50.

[0058] In summary, the locking mechanism 100 of the present application uses a motor 50 to rotate the turntable 40 in the housing 10 to control the locking or unlocking of the target object. On the one hand, this can prevent the operation of the locking mechanism 100 from being affected by the external environment, thereby improving the working stability; on the other hand, it can reduce the space required for the assembly of the turntable 40 and realize the modularization of the overall structure of the locking mechanism 100, which can facilitate the subsequent assembly and application of the locking mechanism 100.

[0059] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.

Claims

1. A locking mechanism, characterized in that: The locking mechanism (100) comprises: Housing (10); A push rod lock (20), at least partially installed in the housing (10) and slidably matched with the housing (10), wherein the push rod lock (20) includes a lock tongue (21); An elastic member (30) is assembled between the push rod lock (20) and the inner peripheral wall (101) of the housing (10) in a pre-compressed manner, and under the push of the elastic member (30), the push rod lock (20) can drive the lock tongue (21) to move in a direction away from the housing (10) to lock the target object; A rotating disk (40) is rotatably mounted in the housing (10), wherein a push block (41) is provided on the rotating disk (40), and the push block (41) can push the push rod lock (20) to compress the elastic member (30) under the drive of the rotating disk (40), and retract the lock tongue (21), so as to release the lock of the lock tongue (21) on the target object; A motor (50) is installed in the housing (10) and is drivingly connected to the turntable (40), and is used to drive the turntable (40) to rotate in the housing (10).

2. The locking mechanism according to claim 1, characterized in that: The push block (41) is eccentrically arranged relative to the rotating disk (40); Wherein, the push rod lock (20) further comprises a push fitting plate (22), and the push rod lock (20) can be in abutment with the push block (41) through the push fitting plate (22).

3. The locking mechanism according to claim 2, characterized in that: The push block (41) has a push surface (411), and the push block (41) can push the push fitting plate (22) through the push surface (411); Wherein, the push surface (411) is configured as an arc surface.

4. The locking mechanism according to claim 1, characterized in that: The push rod lock (20) further comprises a signal trigger plate (23), the signal trigger plate (23) being arranged in the area where the lock tongue (21) is located and connected to the lock tongue (21), and the signal trigger plate (23) can perform telescopic movement relative to the housing (10) under the drive of the lock tongue (21); When the lock tongue (21) locks the target object, the signal triggering plate (23) can trigger the signal sensor.

5. The locking mechanism according to claim 4, characterized in that: A limiting member (120) is formed on the housing (10), and the limiting member (120) is arranged on the movement path of the signal trigger plate (23), and the limiting member (120) can abut against the signal trigger plate (23) to limit the movement of the signal trigger plate (23) when it is extended from the housing (10), and stop the push rod lock (20).

6. The locking mechanism according to claim 1, characterized in that: The push rod lock (20) further comprises a first positioning member (24), and a second positioning member (1011) is formed on the inner peripheral wall (101) of the housing (10). The first positioning member (24) and the second positioning member (1011) are arranged at two ends of the elastic member (30) and are respectively plugged into and matched with the elastic member (30) for assembling and limiting the elastic member (30).

7. The locking mechanism according to claim 1, characterized in that: The push rod lock (20) further comprises a sliding plate (25), and the push rod lock (20) can be slidably matched with the housing (10) through the sliding plate (25); Wherein, the elastic member (30) and the rotating disk (40) are arranged on the upper and lower sides of the sliding plate (25).

8. The locking mechanism according to claim 7, characterized in that: The sliding plate (25) comprises a sliding main plate (251) and two sliding rail assemblies (252), wherein the two sliding rail assemblies (252) are mounted on the sliding main plate (251) and are respectively slidably matched with the housing (10); Wherein, each slide rail assembly (252) comprises a first slide rail (2521), a second slide rail (2522) and a third slide rail (2523), wherein the first slide rail (2521) is arranged on the side end surface (2511) of the sliding main board (251), and the second slide rail (2522) and the third slide rail (2523) are arranged on the upper and lower side surfaces of the sliding main board (251).

9. The locking mechanism according to claim 1, characterized in that: The turntable (40) comprises a turntable body (42) and an annular boss (43), wherein the annular boss (43) is arranged on an outer peripheral surface (421) of the turntable body (42), and the turntable (40) can be rotatably connected to the housing (10) via the annular boss (43); The push block (41) is arranged on an end surface of the turntable body (42) which faces away from the motor (50).

10. The locking mechanism according to claim 1, characterized in that: The housing (10) comprises a first shell (11) and a second shell (12), wherein the first shell (11) is detachably connected to the second shell (12); The first shell (11) and the second shell (12) are combined to form a locking channel (110), and the locking tongue (21) is arranged to pass through the locking channel (110).

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