CN211058468U - Locking mechanism - Google Patents

Abstract

The utility model discloses a locking mechanism, which comprises a lock core, wherein the lock core comprises a rotating core, a rotating core sleeve and a lock catch, the rotating core is rotatably arranged in the rotating core sleeve, one end of the rotating core is a key butt joint part, and the other end is a driving part; the lock catch piece is driven by the driving part to move; the lock core further comprises a shifting piece and a limiting piece, the shifting piece is fixedly and protrudingly arranged on the end face of the driving part, the limiting piece is butted with the driving part, and the locking piece is fixedly connected to the limiting piece; the limiting part is provided with a shifting groove for accommodating the shifting part, and the shifting groove is provided with a movable space for the shifting part to idle in a certain stroke and a shifting wall for the shifting part to shift the limiting part in the positive and negative directions.

Description

Locking mechanism

All as the field of technology

The utility model relates to a lock control technical field, concretely relates to blocked mechanical system.

All the above-mentioned background techniques

In order to reduce the occurrence of misoperation accidents of the equipment, different locking locks need to be adopted for various cabinets provided with the electrical equipment to lock the equipment, and if the electrical equipment needs to be maintained, the locks need to be opened in advance. In order to facilitate management of the keys, special managers manage the keys, and after the managers unlock the locks, maintenance personnel can overhaul the electrical equipment in the cabinets. In the prior art, when the lock is unlocked by using the unlocking key, the key cannot be pulled out when the lock is in an unlocking state.

All kinds of practical novel contents

The utility model aims at providing a blocked mechanical system, when unblock state or shutting state, its lock core can return to the initial position that the key inserted or extracted. The purpose of the utility model is realized by the following technical scheme:

a locking mechanism comprises a lock core and a lock catch, wherein the lock core comprises a rotary core and a rotary core sleeve, the rotary core is rotatably arranged in the rotary core sleeve, one end of the rotary core is a key butt joint part, and the other end of the rotary core is a driving part; the lock catch piece is driven by the driving part to move; the method is characterized in that: the lock core further comprises a shifting piece and a limiting piece, the shifting piece is fixedly and protrudingly arranged on the end face of the driving part, the limiting piece is butted with the driving part, and the locking piece is fixedly connected to the limiting piece; the limiting part is provided with a shifting groove for accommodating the shifting part, and the shifting groove is provided with a movable space for the shifting part to idle in a certain stroke and a shifting wall for the shifting part to shift the limiting part in the positive and negative directions.

The beneficial effects of the above technical scheme are that: by arranging the limiting piece, the limiting piece can be shifted by the shifting piece in the forward and reverse directions and simultaneously provides a certain formed moving space for the shifting piece, and the shifting piece can independently return to the initial position by the mechanism instead of synchronously driving the limiting piece to return to the initial position; therefore, the lock catch piece fixedly connected with the lock cylinder and the limiting piece can be relatively in various matching states, so that when the lock catch piece is in an unlocking state or a locking state, the lock cylinder can be in an unlocking locking position or a locking position, and can also return to an initial position for inserting or pulling out a key, and a flexible use function is provided.

As a specific technical scheme, the side wall of the butt joint of the limiting part and the driving part is circumferentially provided with the shifting groove, and the shifting part is a shifting pin fixed at an eccentric position on the end face of the driving part.

As a specific technical scheme, a fastener sleeve joint part is convexly arranged at the central position on the end face of the driving part, a sleeve joint hole matched with the fastener sleeve joint part is formed at the rear end of the limiting part, and the sleeve joint hole is communicated with the shifting groove; the shifting piece is a shifting pin and is fixedly connected with the side wall of the lock catch piece sleeving part.

The two specific technical schemes have the beneficial effects that: provides two practical and reliable toggle matching structures with simple structure.

As a further technical scheme, the lock cylinder further comprises a clamp spring, the clamp spring is fixedly arranged at the rear end of the rotary core sleeve, a limiting mechanism is arranged at the front end of the rotary core sleeve, and the clamp spring is matched with the limiting mechanism at the front end of the rotary core sleeve to limit the rotary core to move axially in the rotary core sleeve; and the clamp spring is provided with a clamping block for limiting the positive and negative movable angles of the toggle piece.

The beneficial effects of the further technical scheme are as follows: the clamp spring is fixedly arranged on the rotating core sleeve, and the clamp block is arranged at a specific position on the clamp spring, so that the rotating core and the poking part can be limited in forward and backward rotating angles, and excessive operation is avoided.

As a further technical scheme, the locking mechanism further comprises a lock cylinder bearing piece and a spring pin, wherein the bearing piece is provided with a lock cylinder assembly seat, the rotary core sleeve is fixedly installed on the lock cylinder assembly seat, the front end of the limiting piece extends out of the lock cylinder assembly seat, and the rear end of the limiting piece surrounds the lock cylinder assembly seat; the spring pin is arranged on a lock cylinder assembly seat surrounding the rear end of the limiting part, a first notch and a second notch which are used for being embedded with the spring pin are formed in the outer wall of the other side, opposite to the shifting wall, of the limiting part, and the first notch and the second notch respectively correspond to an unlocking lock position and a locking lock position of the rotating core in a rotating mode.

The beneficial effects of the further technical scheme are as follows: the first notch and the second notch are formed in the limiting part and correspond to the unlocking locking position and the locking position of the rotating core in a rotating mode respectively, and when the spring pin is correspondingly embedded in the first notch and the second notch, operation hand feeling is improved.

As a specific technical scheme, the spring pin comprises a pin shell, a marble spring and a marble, wherein the marble is arranged on the pin shell and is pressed in the pin shell; the spring pin is fixedly installed on the lock cylinder assembly seat through the pin shell, and the marble faces the outer wall of the limiting part and is provided with a first notch and a second notch.

As a further technical solution, the locking mechanism further comprises a lock body, wherein an inner cavity with a front side opening is formed in the lock body; the lock cylinder bearing piece is a lock cover and is used for opening or closing the front opening of the inner cavity; when the lock cover closes the front opening of the inner cavity, the lock catch piece is positioned in the inner cavity, a lock catch matching structure for clamping or disengaging the lock catch piece is arranged on the lock body, and when the lock cover is clamped, the lock cover is locked at the front opening of the inner cavity of the lock body; when the lock body is separated, the lock cover can move relative to the lock body and open the front opening of the inner cavity of the lock body.

The beneficial effects of the further technical scheme are as follows: the locking mechanism is embodied as a lock that restricts the manual operation of a locked mechanism (which may be various types of locked mechanisms) in the lock body when the lock cylinder locks the lock cover to the lock body, and allows the manual operation of the locked mechanism in the lock body when the lock cylinder unlocks and the lock cover is opened.

The lock catch piece is in a sheet shape and comprises a connecting part and a clamping hook part formed by extending the connecting part, the connecting part is fixedly connected with the limiting part, and the clamping hook part is used for being clamped or separated from the lock catch matching structure arranged on the lock body; the lock catch matching structure is a groove formed in the side wall of the lock body.

As a specific technical scheme, the upper end of the lock cover is arranged at the upper end of the front side of the assembling shell through a pin shaft; and a magnetic attraction matching mechanism is arranged between the lower end of the lock cover and the lower end of the front side of the assembling shell.

The beneficial effects of the above specific technical scheme are that: the locking cover is convenient to open or close, and the locking cover cannot be lost.

The locking mechanism further comprises a locking assembly, the locking assembly is provided with a manual operation part and a locking part, the manual operation part is movably located in the inner cavity of the lock body, one end of the locking part serving as a locking end extends out of the lock body, and the other end of the locking part is directly or indirectly in driving connection with the manual operation part.

The beneficial effects of the above specific technical scheme are that: the locking mechanism in the lock body can further control a locking piece to lock the cabinet door and the like.

Description of the drawings

Fig. 1 is a front side view of a lock according to a first embodiment of the present invention.

Fig. 2 is a rear side view of a lock according to a first embodiment of the present invention.

Fig. 3 is an exploded view of a lock according to a first embodiment of the present invention.

Fig. 4 is a front view of a lock cover and an assembling housing of a lock according to an embodiment of the present invention.

Fig. 5 is a cross-sectional view taken along the line a-a in fig. 4.

Fig. 6 is an assembly view of the lock cylinder according to the first embodiment of the present invention.

Fig. 7 is an exploded view of a lock cylinder according to a first embodiment of the present invention.

Fig. 8 is a perspective view of a limiting member according to a first embodiment of the present invention.

Fig. 9 is a cross-sectional view of a spring pin according to an embodiment of the present invention.

Fig. 10 is a state diagram of the locking member in the locking position and the lock cylinder in the initial position according to the first embodiment of the present invention.

Fig. 11 is a diagram showing the matching relationship between the rotary core, the rotary core sleeve, the snap spring, the limiting member, the toggle member, the spring pin and the locking member of the lock core in the state of fig. 10.

Fig. 12 is a state diagram of the first embodiment of the present invention, wherein the locking element is in the unlocking position and the lock cylinder is in the unlocking and locking position.

Fig. 13 is a diagram showing the matching relationship between the rotary core, the rotary core sleeve, the snap spring, the limiting member, the toggle member, the spring pin and the locking member of the lock core in the state of fig. 12.

Fig. 14 is a state diagram of the locking element in the unlocking position and the lock cylinder in the initial position according to the first embodiment of the present invention.

Fig. 15 is a diagram of the matching relationship between the rotary core, the rotary core sleeve, the snap spring, the limiting member, the toggle member, the spring pin and the locking member of the lock core in the state of fig. 14.

Fig. 16 is a state diagram of the first embodiment of the present invention, wherein the locking element is in the locking position and the lock cylinder is in the locking and locking position.

Fig. 17 is a diagram of the matching relationship between the rotary core, the rotary core sleeve, the snap spring, the limiting member, the toggle member, the spring pin and the locking member of the lock core in the state of fig. 16.

Fig. 18 is a diagram illustrating a relationship between the lock catch member in the locking position and the lock core in the initial position, the lock core, the rotating core sleeve, the snap spring, the limiting member, the toggle member, the spring pin, and the lock catch member.

Fig. 19 is a diagram illustrating a relationship between the lock catch member and the lock catch member when the lock catch member is in the unlocking position and the lock cylinder is in the unlocking position.

Fig. 20 is a diagram illustrating a relationship between the lock catch member and the lock catch member, wherein the lock catch member is located at the unlocking position and the initial position of the lock cylinder, and the lock cylinder is located at the rotating core, the rotating core sleeve, the snap spring, the limiting member, the toggle member, the spring pin, and the lock catch member.

Fig. 21 is a diagram illustrating a relationship between the lock catch member in the locking position and the lock cylinder in the locking position, the lock cylinder, the rotary cylinder sleeve, the clamp spring, the position limiting member, the toggle member, the spring pin, and the lock catch member.

(specific embodiments) in all cases

For convenience of explanation, the present application defines upper, lower, left, right, front, rear, etc. orientations and these orientations are intended to define relative positions with reference to the accompanying drawings and the written description, and do not limit actual orientations of the products involved in the present application during manufacturing, use, sale, etc. The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

referring to fig. 1, 2 and 3, in this embodiment, the lock includes: the lock body 10, the lock cover 20, the cylinder assembly 30, the spring pin 316, the locking member 317 and the two sets of locking assemblies 40. Wherein, the lock body 10 comprises a lock body base 11 and an assembling shell 12; the lock core assembly 30 comprises a lock core 31, an identity code sheet 32 and a protective cover 33; each set of latch assemblies 40 includes a latch 41, a latch tab 42, and a latch spring 43.

In this embodiment, the assembly housing 12 is a frame structure surrounded on the periphery and penetrated from the front and rear sides, the lock base 11 is mounted on the rear side of the assembly housing 12 in a blocking manner, the lock base and the assembly housing form the lock body 10, and an inner cavity with a front opening is formed in the lock body 10. Specifically, the lock body base 11 is introduced to the rear side of the assembly housing 12 through the slide groove and is fastened by a screw 119. It will be appreciated that the lock base 11 and the assembly housing 12 may be assembled to each other in other ways, or alternatively, the lock base 11 and the assembly housing 12 may be an integral piece.

The locking cap 20 is installed in the front side of the assembling shell 12 and used for opening or closing the lock body 10, the front side opening of the inner cavity is provided, the lock cylinder assembly 30 is arranged on the locking cap 20, the lock cylinder assembly 30 is integrally movable along with the locking cap 20, and when the locking cap 20 closes the front side opening of the inner cavity, the lock cylinder assembly 30 is positioned in the inner cavity. Specifically, the upper end of the locking cap 20 is mounted to the upper end of the front side of the assembly housing 12 by a pin 28, so that the front side opening of the inner cavity can be easily opened or closed. A magnetically attracting engagement mechanism is provided between the lower end of the locking cap 20 and the lower end of the front side of the mounting housing 12, for example, a magnet 29 is provided at the lower end of the locking cap 20, and an iron block 129 is provided at a corresponding position at the lower end of the front side of the mounting housing 12.

As shown in fig. 5 to 8, the lock core 31 includes a rotary core 311, a rotary core sleeve 312, a latch spring 313, a limiting member 314, and a toggle member 315. The lock cover 20 is provided with a lock cylinder assembly seat 21, a rotary cylinder sleeve 312 is fixedly arranged on the lock cylinder assembly seat 21, and the rotary cylinder 311 is rotatably arranged in the rotary cylinder sleeve 312. One end of the rotary core 311 is a key butt joint portion 3111, the other end is a driving portion, a central position on the end surface of the driving portion is provided with a lock catch piece socket portion 3112, and an eccentric position is provided with a toggle piece 315. When the correct key is engaged with the key engaging portion 3111, the key can drive the rotary core 311 to rotate relative to the rotary core sleeve 312. The clamp spring 313 is fixedly arranged at the rear end of the core rotating sleeve 312 and is matched with a limiting mechanism at the front end of the core rotating sleeve 312 to limit the axial movement of the core rotating 311 in the core rotating sleeve 312. Two latch blocks 3131 are protruded from the latch spring 313 toward the central hole thereof, and are used for limiting the rotation angle of the toggle member 315 when the rotating core 311 rotates. In addition, the identity code sheet 32 is arranged on the lock cylinder assembly base 21 and is positioned at the front end of the lock cylinder 31; the protecting cover 33 is used for shielding the key holes of the lock cylinder 31 and the identity code sheet 32.

The stopper 314 is substantially in the form of a boss having a large rear end diameter and a small front end diameter, and the rear end thereof is fitted to the locker fitting portion 3112 of the rotary core 311 and surrounds the cylinder mounting base 21. The front end of the limiting member 314 extends out of the key cylinder assembly base 21, and the locking member 317 is fixedly mounted at the front end of the limiting member 314.

The side wall of the rear end of the limiting member 314 is circumferentially provided with a shifting groove 3141, the end of the shifting member 315 is fixed on the rotating core 311, and the main body is located on one side of the lock member sleeve-connection part 3112 of the rotating core 311 and is also located in the shifting groove 3141. The toggle groove 3141 has a moving space for the toggle element 315 to move within a certain stroke and a toggle wall for the toggle element 315 to toggle the position-limiting element 314 clockwise and counterclockwise. Specifically, when the toggle member 315 rotates along with the rotating core 311 and abuts against the toggle walls at the two ends of the toggle groove 3141, the toggle member 315 toggles the limiting member 314 to rotate synchronously.

The outer wall of the other side of the limiting member 314 opposite to the two end pulling walls is provided with a first gap 3142 and a second gap 3143, which correspond to the unlocking locking position and the locking position of the rotation of the rotating core 311 respectively, and are used for the spring pin 316 to be embedded, so that the hand feeling when the rotating core 311 rotates to the position is increased. As shown in fig. 9, the spring pin 316 includes a pin housing 3161, a ball spring 3162 and a ball 3163, and the ball 3163 is mounted on the pin housing 3161 and presses the ball spring 3162 into the pin housing 3161. The spring pin 316 is fixedly mounted on the lock cylinder assembly seat 21 through a pin housing 3161, and the marble 3163 faces the outer wall of the limiting member 314, which is provided with a first gap 3142 and a second gap 3143. The marble 3163 has a play space at the open end of the pin housing 3161, and when the first notch 3142 or the second notch 3143 of the stopper 314 rotates to a position corresponding to the marble 3163, the marble 3163 is inserted into the first notch 3142 or the second notch 3143 under the action of the marble spring 3162.

In this embodiment, the locking member 317 is a sheet and includes a connection portion 3171 and a hook portion 3172 formed by extending the connection portion 3171. The connecting portion 3171 is used for being fixedly connected with the limiting member 314, and the hook portion 3172 is used for being engaged with or disengaged from a lock catch matching structure arranged on the lock body 10, and when the lock core 31 and the lock cover 20 are engaged with each other, the lock core 31 and the lock cover 20 cannot move relative to the lock body 10 (that is, the lock cover 20 closes a front opening of an inner cavity of the lock body); when disengaged, the key cylinder 31 and the lock cover 20 can move relative to the lock body 10 (i.e., the lock cover 20 can open the front opening of the lock body cavity).

Specifically, the front end of the limiting member 314 is provided with a square nesting portion 3145, the connecting portion 3171 of the locking member 317 is provided with a square nesting hole 31711, the nesting hole 341 is fitted on the nesting portion 3145 and is limited by a screw 318, and in order to enable the locking member 317 to be adjustable in axial position relative to the limiting member 314, the locking member 317 is pressed against the screw 318 by a pressing spring 319. In addition, the lock body 10 is provided with a locking matching structure which is a slot or an opening on the side wall of the lock body base 11.

Referring to fig. 1 to 3, the two locking members 41 are locking rods movably mounted on the lock body 10, and each end of the locking rods extends out of the upper and lower ends of the lock body 10. The other end of each locking rod is connected with a locking part pull buckle 42 in the inner cavity of the lock body, and the two locking part pull buckles 42 are respectively arranged at the upper part and the lower part of the inner cavity of the lock body in a vertically movable way through sliding grooves 115 formed in the side wall of the lock body. In this embodiment, the locking structure is one of the sliding slots 115. The end of the locking rod extending out of the lock body is provided with a spring abutting portion 411, one end of the locking member spring 43 abuts against the lock body 10, and the other end abuts against the spring abutting portion 411.

In the lock provided by the above embodiment, the rotary core 311 of the lock cylinder 31, especially the finger-pulling member 315, is movable between an initial position, a locking lock position and an unlocking lock position, wherein the initial position is a position where the key is inserted or pulled out, and the locking lock position and the unlocking lock position are respectively located at two sides of the initial position; the locking member 317 can be switched between a locking position and an unlocking position under the driving of the toggle part 315, the locking member 317 is clamped with the locking matching structure on the lock body in the locking position, and the locking member 317 is separated from the locking matching structure on the lock body in the unlocking position. With reference to fig. 10 to 17, the specific working process and principle are as follows:

in the lock shown in fig. 10 and 11, the locking member 317 is in the locking position and the key cylinder 31 is in the initial position. When unlocking is required, an unlocking key (not shown) is inserted into the key cylinder 31, the rotary core 311 is rotated, the toggle member 315 arranged on the rotary core 311 toggles the limiting member 314 to rotate counterclockwise in the drawing to the position shown in fig. 12 and 13, at this time, the locking member 317 is at the unlocking position, the key cylinder is at the unlocking locking position, the spring pin 316 is embedded into the second notch 3143, and the toggle member is limited by the latch 3131 on the latch spring 313, so that further rotation cannot be realized. The locking member 317 is disengaged from the locking engagement structure on the lock body in the unlocked position, the cover 20 can be opened, and after the cover 20 is opened, the locking member can be manually operated to pull the fastener 42, so that the locking rod is extended and retracted to be inserted into or disengaged from the rod hole on the door frame.

After the lock is unlocked, the rotating core 311 can be rotated, so that the shifting member 315 arranged on the rotating core 311 returns to the initial position, referring to fig. 14 and 15, since the shifting groove 3141 is formed in the limiting member, when the rotating core 311 returns, the rotating core idles, and does not drive the locking member 317 to rotate synchronously, so that the locking member 317 does not rotate at this time. At this time, the lock cover can be closed and the key can be pulled out, and the state is considered as a 'virtual lock' state, namely, the lock core is actually opened, but the lock is still in a locked state in appearance. The magnet 29 at the lower end of the locking cap 20 and the iron block 129 arranged at the corresponding position at the lower end of the front side of the assembly housing 12 further enable the locking cap to be tightly attached to the assembly housing 12, so that the locking cap (compared with the locking state) does not need to protrude out of the locking body, safety is achieved, and misoperation of an operator is indirectly prevented. The advantage of designing "virtual lock" state lies in, under this state, the key manager can take the unblock key to open other locksets (other locksets also need be the tool to lock that is relevant with this scheme blocked mechanical system), and the back is all opened to the tool to lock that needs to open, and the key manager can leave the scene with the key temporarily, and after the constructor operation finished, the tool to lock that has unlocked returns to the scene again.

When locking is required after the states of fig. 14 and 15, the rotary core 311 is rotated, the toggle member 315 disposed on the rotary core 311 toggles the limiting member 314 to rotate clockwise in the drawing to the position shown in fig. 16 and 17, at this time, the locking member is at the locking position, the key cylinder is at the locking position, the spring pin 316 is embedded in the first notch 3142, and the toggle member is limited by another latch 3131 on the snap spring 313, and cannot rotate any further.

Example two

The difference between the second embodiment and the first embodiment is that: referring to fig. 18 to 21, the second embodiment of the present invention is different in the arrangement of the toggle member 3150, and in this embodiment, the toggle member is a toggle pin, but the toggle pin is fixedly connected to the sidewall of the lock catch sleeve 3112.

Claims (10)

1. A locking mechanism comprises a lock core, wherein the lock core comprises a rotating core, a rotating core sleeve and a lock catch, the rotating core is rotatably arranged in the rotating core sleeve, one end of the rotating core is a key butt joint part, and the other end of the rotating core is a driving part; the lock catch piece is driven by the driving part to move; the method is characterized in that: the lock core further comprises a shifting piece and a limiting piece, the shifting piece is fixedly and protrudingly arranged on the end face of the driving part, the limiting piece is butted with the driving part, and the locking piece is fixedly connected to the limiting piece; the limiting part is provided with a shifting groove for accommodating the shifting part, and the shifting groove is provided with a movable space for the shifting part to idle in a certain stroke and a shifting wall for the shifting part to shift the limiting part in the positive and negative directions.

2. The locking mechanism as recited in claim 1, wherein: the side wall of the butt joint of the limiting part and the driving part is circumferentially provided with the shifting groove, and the shifting part is a shifting pin and is fixed at an eccentric position on the end face of the driving part.

3. The locking mechanism as recited in claim 1, wherein: a lock fastener sleeve joint part is arranged at the central position on the end face of the driving part in a protruding way, a sleeve joint hole matched with the lock fastener sleeve joint part is formed at the rear end of the limiting part, and the sleeve joint hole is communicated with the shifting groove; the shifting piece is a shifting pin and is fixedly connected with the side wall of the lock catch piece sleeving part.

4. The locking mechanism as recited in claim 1, wherein: the lock core also comprises a clamp spring, the clamp spring is fixedly arranged at the rear end of the rotary core sleeve, the front end of the rotary core sleeve is provided with a limiting mechanism, and the clamp spring is matched with the limiting mechanism at the front end of the rotary core sleeve to limit the rotary core to move axially in the rotary core sleeve; and the clamp spring is provided with a clamping block for limiting the positive and negative movable angles of the toggle piece.

5. The locking mechanism as recited in any one of claims 1 to 4, wherein: the locking mechanism further comprises a lock cylinder bearing piece and a spring pin, wherein the lock cylinder bearing piece is provided with a lock cylinder assembly seat, the rotary core sleeve is fixedly arranged on the lock cylinder assembly seat, the front end of the limiting piece extends out of the lock cylinder assembly seat, and the rear end of the limiting piece surrounds the lock cylinder assembly seat; the spring pin is arranged on the lock cylinder assembly seat surrounding the rear end of the limiting part, and a first notch and a second notch for embedding the spring pin are formed in the outer wall of the other side, opposite to the poking wall, of the limiting part.

6. The locking mechanism as recited in claim 5, wherein: the spring pin comprises a pin shell, a marble spring and a marble, wherein the marble is arranged on the pin shell and is pressed in the pin shell; the spring pin is fixedly installed on the lock cylinder assembly seat through the pin shell, the marble faces the outer wall of the limiting part and is provided with a first notch and a second notch, and the first notch and the second notch correspond to the unlocking positioning position and the locking positioning position of the rotating core rotation respectively.

7. The locking mechanism as recited in claim 5, wherein: the locking mechanism also comprises a lock body, wherein an inner cavity with a front side opening is formed in the lock body; the lock cylinder bearing piece is a lock cover, and the lock cover is used for opening or closing the front opening of the inner cavity of the lock body; when the lock cover closes the front opening of the inner cavity of the lock body, the lock catch piece is positioned in the inner cavity, a lock catch matching structure for clamping or disengaging the lock catch piece is arranged on the lock body, and when the lock cover is clamped, the lock cover is locked at the front opening of the inner cavity of the lock body; when the lock body is separated, the lock cover can move relative to the lock body and open the front opening of the inner cavity of the lock body.

8. The locking mechanism as recited in claim 7, wherein: the lock catch piece is in a sheet shape and comprises a connecting part and a clamping hook part formed by extending the connecting part, the connecting part is fixedly connected with the limiting part, and the clamping hook part is used for being clamped or separated from the lock catch matching structure arranged on the lock body; the lock catch matching structure is a groove formed in the side wall of the lock body.

9. The locking mechanism as recited in claim 7, wherein: the upper end of the lock cover is arranged at the upper end of the front side of the assembling shell through a pin shaft; and a magnetic attraction matching mechanism is arranged between the lower end of the lock cover and the lower end of the front side of the assembling shell.

10. The locking mechanism as recited in claim 7, wherein: the locking mechanism further comprises a locking assembly, the locking assembly is provided with a manual operation part and a locking part, the manual operation part is movably located in the inner cavity of the lock body, one end of the locking part serving as a locking end extends out of the lock body, and the other end of the locking part is directly or indirectly in driving connection with the manual operation part.

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