CN216110143U - Lock assembly and battery replacing cabinet - Google Patents

Abstract

The utility model discloses a lock assembly and a power transformation cabinet, wherein the lock assembly comprises two fixing pieces, two locking pieces and a connecting piece, the fixing pieces are used for being fixedly connected with a door body or a frame body, an accommodating space is formed by enclosing the fixing pieces and the door body or the frame body, the fixing pieces are provided with locking mouths and guide rails communicated with the accommodating space, each locking piece comprises a locking body and a locking pin, the locking pins are fixedly connected to the locking bodies, the locking bodies can movably penetrate through the accommodating space, the locking pins move in the guide rails to enable the locking mouths to be locked or unlocked, and the two locking bodies are movably connected through the connecting piece. The technical scheme of the utility model can effectively reduce the manufacturing cost of the power change cabinet.

Description

Lock assembly and battery replacing cabinet

Technical Field

The utility model relates to the technical field of locks, in particular to a lock assembly and a battery replacement cabinet.

Background

The electricity-exchanging cabinet is generally provided with a lock hook, and the lock hook is clamped into a lock opening of a lock on a cabinet door so as to lock the electricity-exchanging cabinet. For some large-sized cabinet doors, two locks need to be installed to increase the anti-prying capability. Because two locksets are installed, the manufacturing cost is increased, and when the cabinet door is closed, the two lock hooks need to be clamped into the lock openings of the two locksets simultaneously. The two locks are installed in a slightly staggered manner, so that the situation that one lock is not locked or the two locks are not locked occurs. Therefore, the lockset of the existing large-size cabinet door not only needs two sets of locksets, but also needs higher installation precision, thereby being difficult to reduce the manufacturing cost of the power exchange cabinet.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a lock assembly, aiming at reducing the manufacturing cost of a power change cabinet.

To achieve the above object, the present invention provides a lock assembly including:

the door body or the frame body is enclosed to form an accommodating space, and the fixing piece is provided with a locking notch and a guide rail which are communicated with the accommodating space;

the locking device comprises two locking pieces, wherein each locking piece comprises a locking main body and a locking pin, the locking pins are fixedly connected to the locking main bodies, the locking main bodies movably penetrate through the accommodating space, and the locking pins move in the guide rails so as to lock or unlock the locking openings; and

and the connecting piece is used for movably connecting the two drop lock bodies.

Optionally, the drop lock body comprises:

a main body plate; and

the two side plates are connected to two opposite side edges of the main body plate in a bending mode, the extending directions of the two side plates are the same, and the lock pin penetrates through the side plates and is connected to the guide rail in a sliding mode.

Optionally, the latch comprises:

a shaft sleeve; and

the lock pin main body penetrates through the shaft sleeve and is arranged between the two side plates, and the lock pin main body is in clearance fit with the shaft sleeve.

Optionally, the main body plate has been seted up the opening, the opening intercommunication the fore shaft for prevent main body plate butt latch hook.

Optionally, the fixing member comprises:

the sliding groove structure is provided with a groove bottom and two groove walls which are oppositely arranged, the locking notch is positioned at the groove bottom, the guide rail is positioned at the groove walls, the groove bottom, the two groove walls and the door body or the frame body are enclosed to form the accommodating space, and the lock pin is positioned between the groove bottom and the main body plate; and

the fixing plates are used for being fixedly connected to the door body or the frame body, and the fixing plates are connected to one side edge, far away from the groove bottom, of the groove wall in a bending mode.

Optionally, the guide rail is a first strip-shaped hole, and the first strip-shaped hole extends along the moving direction of the drop lock main body.

Optionally, the connecting piece is equipped with second bar hole, the second bar hole is followed the direction of motion of falling the lock main part extends, second bar hole sliding connection fall the lock main part.

Optionally, the connecting piece comprises a long strip plate and a folded edge, one side edge of the long strip plate in the length direction is connected with the folded edge, two second strip holes are formed in the two second strip holes, and the two second strip holes are formed in the two ends of the long strip plate in the length direction.

Optionally, the lock assembly is further provided with a pulling piece, the pulling piece comprises a pulling main body and a connecting rope, one end of the connecting rope is fixedly connected to the pulling main body, and the other end of the connecting rope is fixedly connected to one of the drop lock main bodies;

the pulling body pulls one of the drop lock bodies to enable one of the drop lock bodies to slide, and the other drop lock body slides through the connecting piece.

The utility model also provides a battery replacement cabinet, which comprises a lock assembly and a cabinet body, wherein the lock assembly comprises:

the fixing pieces are used for being fixedly connected with a door body or a frame body, an accommodating space is formed by enclosing the fixing pieces and the door body, and the fixing pieces are provided with locking notches and guide rails communicated with the accommodating space;

the locking device comprises two locking pieces, wherein each locking piece comprises a locking main body and a locking pin, the locking pins are fixedly connected to the locking main bodies, the locking main bodies movably penetrate through the accommodating space, and the locking pins move in the guide rails so as to lock or unlock the locking openings; and

and the connecting piece is used for movably connecting the two drop lock bodies.

The technical scheme includes that the lock assembly comprises two fixing pieces, two locking pieces and a connecting piece, an accommodating space is formed by enclosing the fixing pieces and a door body or a frame body, each fixing piece is provided with a locking notch and a guide rail which are communicated with the accommodating space, each fixing piece is used for being fixedly connected with the door body or the frame body, each locking piece comprises a locking body and a locking pin, the locking pins are fixedly connected with the locking bodies, the locking bodies movably penetrate through the accommodating space, and the locking pins move in the guide rails to lock or unlock the locking notches, so that the effect of two door locks can be achieved by using one lock assembly, and the manufacturing cost can be effectively reduced. The connecting piece is used for movably connecting the two locking bodies, so that the two locking bodies can move relatively, even if the two locking bodies are slightly misplaced during installation, after one locking body is locked, the two locking bodies can move relatively, so that the locking body can not act on the other locking body through the connecting piece, namely the locking body can not influence the locking of the other locking body, so that the other locking body is easy to lock, and the condition that the two locking bodies are difficult to lock together due to the installation dislocation is effectively avoided. Therefore, compared with the installation precision of two locks, the installation precision requirement of the lock assembly is lower, so that the installation cost can be effectively reduced, and the manufacturing cost of the power exchange cabinet can be further reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of an embodiment of a lock assembly of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an exploded view of one embodiment of the lock assembly of the present invention;

fig. 4 is a partially enlarged view of fig. 3 at B.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Lock assembly	23	Lock pin
10	Fixing piece	231	Shaft sleeve
				11	Sliding chute structure	233	Lock pin main body
11a	Lock opening		30					Connecting piece
				11b	First strip-shaped hole	31	Long slat
13	Fixing plate	33	Edge folding
				20	Locking piece	30	Second strip-shaped hole
21	Lock body	40	Traction piece
				211	Main board	41	Traction main body
211a	Through hole	43	Connecting rope
				213	Side plate

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The battery replacement cabinet is usually locked by matching a lock hook with a lock. The general latch hook is installed on the framework that trades the cabinet body of electricity cabinet and the tool to lock is installed on the door body of trading the electricity cabinet. The lock hook is clamped into the lock opening of the lock by closing the door body, so that the power transformation cabinet is locked. For some large-size cabinet doors, in order to increase the anti-prying capability, two locksets are usually installed, but the installation of the two locksets not only increases the manufacturing cost, but also has high installation accuracy requirement, and the situation that one lockset is not locked or the two locksets are not locked exists when the two locksets are installed in a slightly staggered manner. Therefore, the lockset of the existing large-size cabinet door not only needs two sets of locksets, but also needs higher installation precision, thereby being difficult to reduce the manufacturing cost of the power exchange cabinet.

The utility model provides a lock assembly.

As shown in fig. 1 to 4, in the embodiment of the present invention, the lock assembly 100 includes two fixing pieces 10, two locking pieces 20 and a connecting piece 30, the fixing piece 10 is used for being fixedly connected with a door body or a frame body, an accommodating space is defined between the fixing piece 10 and the door body or the frame body, and the fixing piece 10 is provided with a locking notch 11a and a guide rail which are communicated with the accommodating space. The locking member 20 includes a locking body 21 and a locking pin 23, the locking pin 23 is fixedly connected to the locking body 21, the locking body 21 is movably disposed in the accommodating space, and the locking pin 23 moves in the guide rail to lock or unlock the locking opening 11 a. The two drop lock bodies 21 are movably connected by a connecting piece 30.

The locking pin 23 is movably connected to the guide rail, the locking pin 23 is fixedly connected to the drop lock body 21, and the locking pin 23 and the guide rail can move therebetween, so that the drop lock body 21 can move relative to the guide rail, that is, the drop lock member 20 can move relative to the fixing member 10. When the door body is closed, the hook body of the lock hook is abutted to the lock pin 23 to push the lock pin 23 to move upwards, and when the door body is completely closed, the lock pin 23 falls into the lock hook, so that the lock hook clamps the lock pin 23, the door body cannot be separated from the frame body, and locking is achieved. When the door is unlocked, the lock body 21 is lifted up and down, the lock pin 23 is driven to move upwards, the lock hook is separated from the lock pin 23, the door body can be separated from the frame body, and then unlocking is achieved. The fixing pieces 10 are arranged in two, the two fixing pieces 10 are arranged up and down relatively, the two falling locking pieces 20 are also arranged, the two fixing pieces 10 and the two falling locking pieces 20 are assembled in a one-to-one correspondence mode, the two falling locking bodies 21 are movably connected through the connecting piece 30, therefore, the effect of two door locks can be achieved by using one set of lock assembly 100, and the manufacturing cost of the power change cabinet can be effectively reduced. The connecting piece 30 movably connects the two locking bodies 21 to enable the two locking bodies 21 to be relatively movable, so that even if the installation is slightly misplaced, after one locking body 21 is locked, the two locking bodies 21 are relatively movable, so that the locking body 21 can not act on the other locking body 21 through the connecting piece 30, namely, the locking body 21 can not influence the locking of the other locking body 21, so that the other locking body 21 is easily locked, and the situation that the two locking bodies 21 are difficult to be locked together due to the installation dislocation is avoided. During unlocking, the upper lock falling body 21 is lifted, and at this time, the movement of the lock falling body 21 exceeds the movable range between the two lock falling bodies 21, that is, the movable range between the two lock falling bodies 21, so that the upper lock falling body 21 can drive the lower lock falling body 21 to move together through the connecting piece 30, and the upper lock falling body 20 and the lower lock falling body 20 are unlocked together. Therefore, compared with the installation accuracy of two locks, the installation accuracy requirement of the lock assembly 100 is lower, so that the installation cost can be reduced, and the manufacturing cost of the power exchange cabinet can be effectively reduced.

It should be noted that, the fixing element 10 is fixedly connected to the door body or the frame body according to the installation position of the locking hook, when the locking hook is installed on the frame body, the fixing element 10 is fixedly connected to the door body, and when the locking hook is installed on the door body, the fixing element 10 is fixedly connected to the frame body. Similarly, the enclosing space formed between the fixing element 10 and the door body or the frame body is also determined according to the installation position of the locking hook, when the locking hook is installed on the frame body, the fixing element 10 and the door body are enclosed to form the accommodating space, and when the locking hook is installed on the door body, the fixing element 10 and the frame body are enclosed to form the accommodating space.

The fixing member 10 may be fixed to the door body or the frame by bolts, welding, or other fixing methods.

The locking pin 23 may be fixedly connected to the drop lock body 21 by a bolt connection, a welded connection, a snap connection, or other fixing connection.

The movement of the locking pin 23 in the guide track may be sliding, rolling, or other movement.

The connecting piece 30 movably connects the two drop lock bodies 21, and the connecting piece 30 is slidably connected with the drop lock bodies 21 by arranging a slide rail at the connecting part of the connecting piece 30 and the drop lock bodies 21, so that the two drop lock bodies 21 are movably connected; the two drop lock main bodies 21 can be flexibly connected by arranging a flexible piece, so that the two drop lock main bodies 21 are movably connected; other ways of movably connecting the two drop lock bodies 21 are also possible.

As shown in fig. 3 and 4, in an embodiment of the present invention, the drop lock body 21 includes a body plate 211 and two side plates 213, the two side plates 213 are connected to two opposite sides of the body plate 211 in a bending manner and extend in the same direction, and the lock pin 23 passes through the side plates 213 and is slidably connected to the guide rail.

The two side plates 213 are respectively connected with two opposite sides of the main body plate 211, so that the two side plates 213 and the main body plate 211 are in a groove shape, the strength of the drop lock main body 21 can be effectively increased, and the service life is prolonged. The lock pin 23 is slidably connected to the guide rail through the side plates 213, the lock pin 23 is fixedly connected to the side plates 213, and the lock pin 23 and the guide rail can slide therebetween, so that the drop lock body 21 can slide relative to the guide rail, that is, the drop lock body 21 can slide relative to the fixing member 10. When the door body is closed, the hook body of the lock hook is abutted to the lock pin 23 to push the lock pin 23 to slide upwards, and when the door body is completely closed, the lock pin 23 falls into the lock hook, so that the lock hook clamps the lock pin 23, the door body cannot be separated from the frame body, and locking is achieved. When the lock is unlocked, the lock pin 23 is lifted up, so that the lock hook is separated from the lock pin 23, the door body can be separated from the frame body, and the unlocking is realized. So set up, simple structure, reliable and stable is convenient for manufacture and installation.

As shown in fig. 2 to 4, in an embodiment of the present invention, the locking pin 23 includes a sleeve 231 and a locking pin body 233, the locking pin body 233 is inserted into the sleeve 231 and is disposed between the two side plates 213, and the locking pin body 233 is in clearance fit with the sleeve 231.

The locking pin body 233 is slidably coupled to the guide rail through the side plate 213 of the locking pin body 233 around the boss 231. Wherein the bushing 231 is located between the two side plates 213. There is a gap between the locking pin body 233 and the sleeve 231, so that the sleeve 231 can be loosened relative to the locking pin body 233, and thus when locking, the sleeve 231 contacts the locking hook, and the locking hook pushes the sleeve 231, so that the sleeve 231 rolls, and thus the locking pin body 233 is driven to move upwards, thereby realizing locking. So set up, make the friction between lockpin 23 and the latch hook become rolling friction, can reduce the resistance effectively to it locks to change easily, and then can reduce the installation accuracy requirement of lock subassembly 100, thus can reduce installation cost, and then can reduce the manufacturing cost of electricity changing cabinet effectively.

As shown in fig. 4, in an embodiment of the present invention, the main body plate 211 is opened with a through hole 211a, and the through hole 211a is communicated with the locking notch 11a for preventing the main body plate 211 from abutting against the locking hook. The through hole 211a is provided at a position where the main body plate 211 faces the locking hole 11a, and it is possible to avoid a situation where the locking is disabled due to the contact with the main body plate 211 due to an excessively long locking hook when the door is closed and locked, or where the door and the housing have a large gap due to the contact with the main body plate 211 after the locking. With such an arrangement, the locking hook can smoothly push the lock pin 23 to be locked, and the main body plate 211 and the locking hook can be protected, so that the service life of the lock assembly 100 is prolonged.

As shown in fig. 2 to 4, in an embodiment of the present invention, the fixing member 10 includes a sliding chute structure 11 and two fixing plates 13, the sliding chute structure 11 has a chute bottom and two opposite chute walls, the locking notch 11a is located at the chute bottom, the guide rail is located at the chute walls, the chute bottom, the two chute walls and the door body enclose to form an accommodating space, and the locking pin 23 is located between the chute bottom and the main body plate 211. The fixed plate 13 is used for being fixedly connected to the door body or the frame body, and the fixed plate 13 is connected to one side edge of the groove wall far away from the groove bottom in a bending mode.

The bottom of the chute structure 11 is provided with a locking opening 11a, and the position of the guide rail on the chute wall is determined according to the position of the locking opening 11 a. The two groove walls are provided with guide rails which are arranged oppositely and are parallel to each other. So set up, can make the slip of lockpin 23 more reliable and stable, and simple structure, the manufacturing of being convenient for. The fixing plate 13 is bent to connect the side of the groove wall, so that an included angle is formed between the fixing plate 13 and the groove wall. The two fixing plates 13 are respectively connected with the two opposite groove walls, so that the fixing plates 13 extend outwards from the groove walls to enable the fixing piece 10 to be unfolded, the fixing plates 13 can be conveniently fixed on a door body or a frame body, or the fixing plates 13 extend inwards from the groove walls to enable the fixing piece 10 to be unfolded and closed, and the size of the fixing piece 10 is reduced. The groove bottom, two groove walls and the door body or the frame body enclose to form an accommodating space, the falling lock main body 21 can slidably penetrate through the accommodating space, the lock pin 23 is positioned between the groove bottom and the main body plate 211, so that the falling lock part 20 and the fixing part 10 are in a relatively buckled state, when the falling lock part 20 is contacted with the groove bottom of the sliding groove structure 11 due to manufacturing errors or assembly errors, the groove bottom is contacted with the side edges of the two side plates 213 of the falling lock main body 21, compared with the plate surface of the main body plate 211 of the falling lock main body 21, the generated resistance is much smaller, the sliding cannot be hindered, and the locking is difficult, so that the manufacturing precision requirement of the falling lock part 20 can be reduced, the manufacturing cost is reduced, and the manufacturing cost of the electricity changing cabinet can be effectively reduced.

In addition, it should be noted that one side of the fixing plate 13 connected to the groove wall may be formed by bending the groove wall to reduce the manufacturing cost, or the fixing plate 13 may be welded to one side of the groove wall, or other effective connection methods.

As shown in fig. 2 and 4, in an embodiment of the present invention, the guide rail is a first strip-shaped hole 11b, and the first strip-shaped hole 11b extends along the moving direction of the drop lock body 21. The drop lock body 21 moves up and down in the vertical direction, and the extending direction of the first strip-shaped hole 11b also extends in the vertical direction. The first strip-shaped hole 11b is used as a guide rail, so that the stability and reliability are realized, the manufacturing and processing are simple, and the manufacturing cost can be saved.

As shown in fig. 2 and 4, in an embodiment of the present invention, the connecting member 30 is provided with a second bar-shaped hole 30, the second bar-shaped hole 30 extends along the moving direction of the drop lock body 21, and the second bar-shaped hole 30 is slidably connected with the drop lock body 21. The drop lock body 21 moves up and down along the vertical direction, and the extending direction of the second strip-shaped hole 30 is also arranged along the vertical direction. Through second bar hole 30 sliding connection lock main part 21 for two relative lock parts 20 that set up from top to bottom are mobile in vertical direction, thereby when avoiding locking lock main part 21 influences another lock main part 21 and locks, and then can make lock subassembly 100's installation accuracy require lowerly, make installation cost reduce, thereby can reduce the manufacturing cost of electricity changing cabinet effectively. Moreover, the second strip-shaped hole 30 is stable and reliable, the manufacturing and processing are simple, and the manufacturing cost can be saved.

As shown in fig. 4, in an embodiment of the present invention, the connecting member 30 includes a long strip 31 and a folded edge 33, one side of the long strip 31 along the length direction is connected to the folded edge 33, two second strip holes 30 are provided, and two second strip holes 30 are provided at two ends of the long strip 31 along the length direction. The provision of the folded edge 33 can improve the strength of the connecting member 30, making the connecting member 30 less likely to be bent, thereby prolonging the service life. The two second bar-shaped holes 30 are provided to make the upper and lower locking bodies 21 relatively looser in the vertical direction, so that the upper and lower locking members 20 are more easily locked. Moreover, the two second strip-shaped holes 30 can avoid the situation that one of the second strip-shaped holes 30 is blocked and cannot work, so that the second strip-shaped holes 30 can be ensured to function stably and reliably.

As shown in fig. 3 and 4, in an embodiment of the present invention, the lock assembly 100 is further provided with a pulling member 40, the pulling member 40 includes a pulling body 41 and a connecting rope 43, one end of the connecting rope 43 is fixedly connected to the pulling body 41, and the other end of the connecting rope 43 is fixedly connected to a drop lock body 21. Wherein, the pulling body 41 pulls one of the locking bodies 21 to slide the one locking body 21, and the other locking body 21 is slid by the connecting member 30. The upper end of the connecting rope 43 is connected to the pulling member 40, and the upper end of the connecting rope 43 is connected to the upper drop lock body 21. During unlocking, the connecting rope 43 is pulled by the pulling part 40 to drive the upper falling lock body 21 to move, the upper falling lock body 21 drives the lower falling lock body 21 through the connecting part 30, so that the upper and lower falling lock bodies 21 move together, the lock pins 23 on the upper and lower sides are separated from the lock hooks on the upper and lower sides respectively, and unlocking is achieved. Through connecting rope 43 pulling locking body 21, not only simple structure easily realizes, the equipment is convenient moreover, can reduce the manufacturing cost of the cabinet of changing electricity effectively. Further, the lock assembly 100 can be locked more smoothly without causing locking interference to the lock body 21 at the time of locking, compared to the lever connection using the connection cord 43.

The utility model further provides a battery replacement cabinet, which comprises a lock assembly and a cabinet body, wherein the specific structure of the lock assembly refers to the above embodiment, and the battery replacement cabinet adopts all the technical schemes of all the embodiments, so that at least all the beneficial effects brought by the technical schemes of the embodiments are achieved, and the details are not repeated.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A lock assembly, comprising:

the fixing pieces are used for being fixedly connected with a door body or a frame body, an accommodating space is formed by enclosing the fixing pieces and the door body, and the fixing pieces are provided with locking notches and guide rails communicated with the accommodating space;

the locking device comprises two locking pieces, wherein each locking piece comprises a locking main body and a locking pin, the locking pins are fixedly connected to the locking main bodies, the locking main bodies movably penetrate through the accommodating space, and the locking pins move in the guide rails so as to lock or unlock the locking openings; and

and the connecting piece is used for movably connecting the two drop lock bodies.

2. The lock assembly of claim 1, wherein the drop lock body comprises:

a main body plate; and

the two side plates are connected to two opposite side edges of the main body plate in a bending mode, the extending directions of the two side plates are the same, and the lock pin penetrates through the side plates and is connected to the guide rail in a sliding mode.

3. The lock assembly of claim 2, wherein the lock pin comprises:

a shaft sleeve; and

the lock pin main body penetrates through the shaft sleeve and is arranged between the two side plates, and the lock pin main body is in clearance fit with the shaft sleeve.

4. The lock assembly of claim 2, wherein the body plate defines a through opening that communicates with the locking notch for preventing the body plate from abutting the locking hook.

5. The lock assembly of claim 2, wherein the fixture includes:

the sliding groove structure is provided with a groove bottom and two groove walls which are oppositely arranged, the locking notch is positioned at the groove bottom, the guide rail is positioned at the groove walls, the groove bottom, the two groove walls and the door body are enclosed to form the accommodating space, and the lock pin is positioned between the groove bottom and the main body plate; and

the fixing plates are used for being fixedly connected to the door body or the frame body, and the fixing plates are connected to one side edge, far away from the groove bottom, of the groove wall in a bending mode.

6. The lock assembly as claimed in claim 5, wherein the guide track is a first strip aperture extending in the direction of movement of the drop lock body.

7. The lock assembly as claimed in claim 1, wherein the connector is provided with a second bar shaped aperture extending in the direction of movement of the drop lock body, the second bar shaped aperture being slidably connected to the drop lock body.

8. The lock assembly as claimed in claim 7, wherein the connector comprises a strip and a flange, one side of the strip in the length direction being connected to the flange, two of the second holes being provided at both ends of the strip in the length direction.

9. The lock assembly as claimed in any one of claims 1 to 8, further provided with a pulling member including a pulling body and a connecting cord having one end fixedly connected to the pulling body and the other end fixedly connected to one of the drop lock bodies;

the pulling body pulls one of the drop lock bodies to enable one of the drop lock bodies to slide, and the other drop lock body slides through the connecting piece.

10. A battery changing cabinet is characterized by comprising the lock assembly and the cabinet body as claimed in any one of 1 to 9.

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