CN218661323U

CN218661323U - Lock body subassembly, battery package, locking mechanism and vehicle

Info

Publication number: CN218661323U
Application number: CN202223153134.6U
Authority: CN
Inventors: 贾金龙; 蒋舒; 周肖鸿
Original assignee: Weilai Automobile Technology Anhui Co Ltd
Current assignee: Weilai Automobile Technology Anhui Co Ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-03-21
Anticipated expiration: 2032-11-25

Abstract

The utility model relates to an electric automobile technical field, concretely relates to lock body subassembly, battery package, locking mechanism and vehicle. The application aims to solve the problem that an existing locking mechanism is easily invaded by foreign matters when exposed in the environment. To this end, the lock body assembly of the present application includes: the mounting seat is of a cylindrical structure, the bottom of the mounting seat is open, and the top of the mounting seat is provided with a mounting hole; the connecting piece is provided with an operating part and a fastening part which are connected with each other, the operating part is arranged on the mounting seat in a free sliding manner, the lower part of the operating part can be butted with the locking and unlocking head, and the upper part of the fastening part can penetrate through the mounting hole and is fastened to a target fastening piece; and a shielding member connected to the operating part and configured to separate the bottom opening of the mounting seat from an inner portion of the mounting seat when the connecting member is fastened to the target fastener. This application can prevent foreign matters such as mud, husky in the environment from getting into inside the lock body subassembly, improves the success rate and the stability of locking and unlocking process.

Description

Lock body subassembly, battery package, locking mechanism and vehicle

Technical Field

The utility model relates to an electric automobile technical field, concretely relates to lock body subassembly, battery package, locking mechanism and vehicle.

Background

In recent years, with the rapid development of new energy vehicles, the sales volume of new energy vehicles is increasing year by year, and the demand of users for power-on services is becoming stronger. Compared with the technical scheme of charging, the technical scheme of battery replacement can generally control the battery replacement time within 5 minutes or even 3 minutes, so that the energy supplementing efficiency can be greatly improved.

The locking mechanism for connecting the vehicle body and the battery pack comprises a lock body assembly arranged on the battery pack and a locking assembly arranged on the vehicle body, wherein a bolt is arranged in the lock body assembly, a nut is arranged on the locking assembly, and the battery pack is fixedly arranged on the vehicle body through connection between the bolt and the nut. However, the applicant finds that in the practical application process, as the locking mechanism is exposed in the environment for a long time in the vehicle running process, foreign matters in the external environment easily enter the locking mechanism, the success rate of locking and unlocking in the battery replacement process is affected, and the battery replacement experience of a user is affected.

Accordingly, there is a need in the art for a new solution to the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above problems in the prior art, namely to solve the problem that the existing locking mechanism is exposed to the environment and is easily invaded by foreign matters, in a first aspect of the present application, there is provided a lock body assembly, comprising:

the mounting seat is of a cylindrical structure, the bottom of the mounting seat is open, and the top of the mounting seat is provided with a mounting hole;

a connector having an operating portion and a fastening portion connected to each other, the operating portion being slidably provided to the mounting seat, a lower portion of the operating portion being capable of abutting against the locking and unlocking head, and an upper portion of the fastening portion being capable of passing through the mounting hole and fastening to a target fastener;

a shield connected to the operating portion and configured to separate a bottom opening of the mount from an interior of the mount when the connector is fastened to the target fastener.

Through setting up the protection piece for the lock body subassembly can separate the mount pad is inside mutually with the environment through the protection piece after fastening in the target fastener, prevents that foreign matters such as mud, sand in the environment from getting into inside the lock body subassembly, improves the success rate and the stability of locking and unlocking process, improves user experience.

In a preferred embodiment of the lock body assembly, the shielding member includes a connecting portion connected to the operating portion and a partition portion separating a bottom opening of the mounting base from an inside of the mounting base.

Through setting up connecting portion and partition portion, can realize through connecting portion being connected effectively with the operation portion, improve the protective effect through the partition portion.

In a preferred embodiment of the above lock body assembly, the connecting portion is cylindrical, an inner circumferential surface of the connecting portion is fitted to an outer circumferential surface of the operating portion, and the connecting portion is fitted over the operating portion.

The connecting part is sleeved on the upper part of the operating part, so that the protection part can be installed on the operating part, and the normal butt joint of the locking and unlocking head and the operating part is not influenced.

In a preferred embodiment of the above lock body assembly, the inner circumferential surface of the connecting portion is provided with a plurality of through grooves extending in the axial direction.

Through setting up logical groove, can provide deformation region for the inner peripheral surface at interference fit in-process, reduce the installation degree of difficulty of protection piece.

In a preferred embodiment of the above lock body assembly, a tension structure is formed on an inner circumferential surface of the connecting portion, and the inner circumferential surface of the connecting portion is in interference fit with the operating portion through the tension structure.

Through setting up tensioning texture, can improve interference fit's between connecting portion and the operating portion stability.

In a preferred technical solution of the above lock body assembly, the tension structure is a rib or a bump; and/or

The cross section of the inner circumferential surface of the connecting part is polygonal, and the tensioning structure is arranged on part of the side surface of the inner circumferential surface.

By providing the tension structure on a part of the side surface of the inner peripheral surface, the mounting difficulty of the guard can be reduced.

In the preferable technical scheme of the lock body assembly, the separating part is cylindrical, the upper part of the separating part is connected with the connecting part, the lower part of the separating part is of an open structure, and the open structure allows the locking and unlocking head to enter.

Through setting up the partition part into tubular structure, can improve protective effect, still do not influence the normal butt joint of adding the tapered end of separating and operating portion simultaneously.

In a preferred technical scheme of the above lock body assembly, the connecting portion is made of plastic, the separating portion is made of metal or alloy, and the connecting portion and the separating portion are connected in an insert injection molding mode.

Adopt plastics through the connecting portion material, the deformation of the connecting portion of being convenient for is connected, adopts metal or alloy through the partition part, can improve the protective effect, prolongs the life of protection piece.

In the preferred technical scheme of above-mentioned lock body subassembly, the lock body subassembly still includes prevents weighing down the piece, prevent weighing down piece detachably connect in the bottom of mount pad, the middle part of preventing weighing down the piece is formed with the via hole, the via hole is set to allow locking head to pass, prevent weighing down the piece and set up to be can the connecting piece breaks away from when the target fastener prevent the connecting piece by the mount pad falls.

Through the arrangement of the anti-falling piece, the connecting piece can be prevented from falling off from the mounting seat after being separated from the target fastener, and the positioning of the connecting piece and the butt joint of the locking and unlocking heads are facilitated. Through preventing that the piece detachably connects in the mount pad bottom, the maintenance of the connecting piece of being convenient for is changed.

In the preferred technical scheme of above-mentioned lock body subassembly, prevent weighing down the piece include annular base member with set up in a plurality of jack catchs on the annular base member, be provided with first connection structure on the jack catch, the bottom inner wall of mount pad is provided with second connection structure, first connection structure with second connection structure joint, the connecting piece breaks away from can the butt in during the target fastener the top of jack catch.

Through setting up annular base member and jack catch, conveniently prevent weighing down the dismouting of piece, reduce the change and the maintenance degree of difficulty of connecting piece.

In a preferred embodiment of the above lock body assembly, the first connecting structure is disposed at an outer side of a top of the claw; and/or

One of the first connecting structure and the second connecting structure is a protrusion, and the other one of the first connecting structure and the second connecting structure is a groove or an annular groove.

In the above-described lock body assembly, preferably, the guard member extends to a lower portion of the mount base, and an inner diameter of the annular base member is substantially equal to an outer diameter of an outer peripheral surface of the guard member.

The guard extends to the lower part of the mounting seat, and the inner diameter of the annular base body is approximately equal to the outer diameter of the outer peripheral surface of the guard, so that the guard effect can be improved, and foreign matters can be prevented from entering the lock body assembly from the space between the inner peripheral surface of the annular base body and the outer peripheral surface of the guard.

In the preferable technical scheme of the lock body assembly, the anti-falling piece is integrally formed by injection molding.

The anti-falling piece is integrally injection molded, so that the anti-falling piece has the advantages of good performance, easiness in assembly and disassembly, light weight, difficulty in loosening, low cost and the like.

In a preferred embodiment of the above lock body assembly, the fastening portion has a threaded section at an upper portion thereof, and the threaded section can pass through the mounting hole and be screwed to the target fastener.

And the upper part of the fastening part adopts a thread section, so that the connection stability is high.

In a preferred embodiment of the lock body assembly, the thread section is a coarse thread.

The coarse thread is selected for the thread section, so that the connection durability is higher compared with that of a fine thread, the service life of the connecting piece can be prolonged, and the probability of first-tooth meshing failure is reduced.

In the preferable technical scheme of the lock body assembly, the operating part comprises a flange section and a nut section, the upper surface of the flange section is connected with the fastening part, the lower surface of the flange section is connected with the nut section, and the axial projection area of the flange section is larger than that of the nut section.

In a preferred embodiment of the lock body assembly, the flange section has an outer diameter substantially equal to an inner diameter of the mounting seat, and the guard is connected to the nut section.

The outer diameter of the flange section is approximately equal to the inner diameter of the mounting seat, so that the sliding stability and the connection precision of the connecting piece can be guaranteed, and seizure and sliding of the connecting piece due to axial deflection are avoided.

In a preferred embodiment of the above lock body assembly, the lock body assembly further includes an anti-release member, the anti-release member is disposed between the operating portion and the top inner wall of the mounting seat, and the anti-release member is configured to be pressed between the operating portion and the top inner wall of the mounting seat when the fastening portion is fastened to the target fastener by rotation, and has no relative rotation with the top inner wall of the mounting seat.

Through putting the anti-loosening piece, can improve the durability and the connection reliability of lock body subassembly, prolong the life of lock body subassembly, reduce the mechanism complexity. Present locking mechanism is at the locking in-process, the top inner wall of mount pad directly produces the friction with the connecting piece as the bearing surface, can lead to the top inner wall degree of wear of connecting piece and mount pad to increase in time, and because the lock body subassembly direct fixed connection is usually circulated on the battery package along with the battery package, the closure subassembly sets up the vehicle-mounted circulation on the automobile body, still make the lock body subassembly on the battery package when trading the electricity at every turn all need with the closure subassembly running-in match again, can accelerate wearing and tearing between the two, and in case also be difficult to change after the mount pad wearing and tearing to a certain degree. And this application can shift the wearing surface between anti-loosening piece and the connecting piece by between connecting piece and the mount pad top inner wall through setting up anti-loosening piece between the top inner wall at operating part and mount pad to the degree of wear of the mount pad top inner wall that significantly reduces plays the effect of protection mount pad. And, set up locking piece and can also omit the setting of locking mechanism in the traditional lock body subassembly to simplify the structure of lock body subassembly by a wide margin, be favorable to realizing miniaturization, the lightweight demand of locking mechanism, reduce the manufacturing cost of lock body subassembly, increase product competitiveness.

In a preferred technical solution of the above lock body assembly, the anti-loose member is a washer, the washer is sleeved on a lower portion of the fastening portion, and a roughness of an upper surface of the washer is greater than a roughness of a lower surface thereof; or

The anti-loosening piece is a gasket which is fixedly connected to the inner wall of the top of the mounting seat; or

The locking piece includes first gasket and second gasket, first gasket is the annular and the cover is located the lower part of fastening portion, the upper surface of first gasket is formed with first radial burr, first gasket lower surface is formed with first wedge along circumference, the second gasket is the annular and overlaps and locates the below of first gasket, the lower surface of second gasket is formed with the radial burr of second, second gasket upper surface along circumference be formed with the second wedge that first wedge matches when fastening portion and the rotatory fastening of target fastener, first radial burr with the top inner wall of mount pad extrudees each other, the radial burr of second with the operating portion extrudees each other, first wedge with the second wedge extrudees each other.

When the anti-loosening piece is a gasket, the roughness of the upper surface of the gasket is larger than that of the lower surface of the gasket, so that the gasket and the inner wall of the top of the mounting seat do not rotate relatively, the connecting piece and the gasket can rotate relatively, the wear surface is transferred between the gasket and the connecting piece, the wear of the mounting seat is reduced, and the maintenance convenience is improved.

The gasket fixed connection can avoid producing the friction between the top inner wall of packing ring and mount pad at the mode of setting up of mount pad top inner wall, and the protection mount pad avoids wearing and tearing, improves the life of mount pad.

The anti-loosening piece adopts the arrangement mode of the first gasket and the second gasket, so that when the connecting piece tends to loosen, the wedge-shaped surfaces of the first gasket and the second gasket rotate relatively to generate lifting tension to prevent the connecting piece from loosening, and the anti-loosening effect is improved.

In a second aspect of the present application, a battery pack is further provided, where the battery pack includes a housing, and the lock body assembly of any one of the above first aspects is disposed on the housing.

The battery package of this application, through setting up the lock body subassembly of above-mentioned first aspect, can prevent that foreign matters such as mud, sand in the environment from getting into inside the lock body subassembly, improve the success rate and the stability of adding the unblock process, improve user experience.

In a third aspect of the present application, there is further provided a locking mechanism, which includes a locking assembly and the lock body assembly of any one of the above first aspects, wherein the lock body assembly is connected with the locking assembly in a matching manner.

The locking mechanism of this application, through setting up the lock body subassembly of above-mentioned first aspect, can prevent that foreign matters such as mud, sand in the environment from getting into inside the lock body subassembly, improve the success rate and the stability of adding the unblock process, improve user experience.

In a preferred embodiment of the locking mechanism, the locking assembly includes a locking member and a cover, the locking member is capable of being fastened to an upper portion of the fastening portion, and the cover is capable of being fixedly connected to the vehicle and covers the locking member.

Establish the lock piece cover wherein through setting up the housing, can seal the lock piece in inside, avoid foreign matters such as mud, sand in the environment to get into the lock piece and influence the stability of being connected of lock piece and connecting piece, improve and add the unblock success rate.

In a preferred embodiment of the locking mechanism, the locking assembly further includes a floating plate that is provided in the housing in a floating manner and is restricted from rotating by the housing, and the locking member is fixedly provided on the floating plate.

The locking piece is fixedly arranged on the floating plate, floating butt joint of the locking piece can be achieved under the floating effect of the floating plate, and the success rate of locking and unlocking is improved.

In a fourth aspect of the present application, there is provided a vehicle including a vehicle body, a battery pack, and the locking mechanism of any one of the third aspects, wherein the battery pack is connected to the vehicle body through the locking mechanism.

Through set up foretell locking mechanism on the vehicle, can prevent foreign matters such as mud in the environment, husky from getting into inside the locking mechanism, improve the success rate and the stability of adding the unblock process, improve user experience.

Scheme 1. A lock body subassembly, its characterized in that, the lock body subassembly includes:

The lock body assembly of claim 1, wherein the shielding member includes a connecting portion connected to the operating portion and a separating portion separating a bottom opening of the mounting seat from an interior of the mounting seat.

The lock body assembly according to claim 3 or 2, wherein the connecting portion is cylindrical, an inner circumferential surface of the connecting portion is fitted to an outer circumferential surface of the operating portion, and the connecting portion is fitted to an upper portion of the operating portion.

Scheme 4. The lock body subassembly of scheme 3, characterized in that, the inner peripheral surface of connecting portion is seted up a plurality of logical grooves that extend along the axial.

The lock body assembly of the claim 3, characterized in that a tension structure is formed on the inner circumferential surface of the connecting part, and the inner circumferential surface of the connecting part is in interference fit with the operating part through the tension structure.

Scheme 6. The lock body subassembly of scheme 5, characterized in that, the tension structure is protruding muscle or bump; and/or

Scheme 7. The lock body subassembly of scheme 2, characterized in that, the partition portion is the tube-shape, the upper portion of partition portion is connected with connecting portion, the lower part of partition portion is open structure, open and allow the locking and unlocking head to get into.

Scheme 8. The lock body assembly according to scheme 2, characterized in that the connecting portion is made of plastic, the separating portion is made of metal or alloy, and the connecting portion and the separating portion are connected through insert molding.

Scheme 9. The lock body assembly according to scheme 1, characterized in that, the lock body assembly further comprises a falling prevention piece detachably connected to the bottom of the mounting seat, a via hole is formed in the middle of the falling prevention piece, the via hole is arranged to allow a locking and unlocking head to pass through, and the falling prevention piece is arranged to prevent the connecting piece from falling from the mounting seat when the connecting piece is separated from the target fastener.

Scheme 10. According to scheme 9 the lock body subassembly, characterized in that, prevent weighing down the piece including annular base member with set up in a plurality of jack catchs on the annular base member, be provided with first connection structure on the jack catch, the bottom inner wall of mount pad is provided with second connection structure, first connection structure with second connection structure joint, the connecting piece breaks away from can the butt in when target fastener the top of jack catch.

A lock body assembly according to claim 10, wherein the first connecting structure is disposed outside a top of the pawl; and/or

An assembly according to claim 12, wherein the guard member extends to a lower portion of the mounting and the annular base has an inner diameter substantially equal to an outer diameter of an outer peripheral surface of the guard member.

Scheme 13. The lock body assembly of scheme 9, characterized in that, prevent that the piece integrated into one piece injection moulding.

An assembly according to claim 14, wherein the upper portion of the fastening portion is a threaded section that is capable of passing through the mounting hole and being threaded to the target fastener.

A lock body assembly as set forth in claim 14 wherein said threaded segment is a coarse thread.

Scheme 16. The lock body assembly according to scheme 1, wherein the operating portion includes a flange section and a nut section, an upper surface of the flange section is connected with the fastening portion, a lower surface of the flange section is connected with the nut section, and an axial projection area of the flange section is larger than an axial projection area of the nut section.

An assembly according to claim 17, wherein the flange section has an outer diameter substantially equal to an inner diameter of the mounting receptacle, and the shielding member is coupled to the nut section.

The lock body assembly of claim 1, further comprising an anti-release member disposed between the operating portion and the top interior wall of the mounting receptacle, the anti-release member configured to be compressed between the operating portion and the top interior wall of the mounting receptacle and to not rotate relative thereto when the fastening portion is rotationally fastened to a target fastener.

The lock body assembly of claim 18, wherein the anti-loosening member is a washer, the washer is sleeved on the lower portion of the fastening portion, and the roughness of the upper surface of the washer is greater than that of the lower surface of the washer; or

The anti-loosening piece is a gasket which is fixedly connected to the inner wall of the top of the mounting seat; or alternatively

The locking piece includes first gasket and second gasket, first gasket is the annular and the cover is located the lower part of fastening portion, the upper surface of first gasket is formed with first radial burr, first gasket lower surface is formed with first wedge along circumference, the second gasket is the annular and overlaps and locates the below of first gasket, the lower surface of second gasket is formed with the radial burr of second, second gasket upper surface along circumference be formed with the second wedge that first wedge matches during fastening portion and the rotatory fastening of target fastener, first radial burr with the top inner wall of mount pad extrudees each other, the radial burr of second with the operation portion extrudees each other, first wedge with the second wedge extrudees each other.

Scheme 20. A battery pack, characterized in that, the battery pack includes the shell, be provided with the lock body subassembly of any of schemes 1-19 on the shell.

The lock mechanism of claim 21, wherein the lock mechanism comprises a locking assembly and the lock body assembly of any one of claims 1 to 19, and the lock body assembly is cooperatively connected with the locking assembly.

The locking mechanism of claim 21, wherein the locking assembly comprises a locking member and a housing, the locking member is capable of being fastened to an upper portion of the fastening portion, and the housing is capable of being fixedly attached to the vehicle and housing the locking member therein.

The latch mechanism of claim 22, wherein the latch assembly further comprises a float plate that is floatably disposed within the housing and is restrained from rotation by the housing, and the latch member is fixedly disposed on the float plate.

The vehicle of claim 24, characterized in that the vehicle comprises a vehicle body, a battery pack, and the locking mechanism of any one of claims 21 to 23, wherein the battery pack is connected to the vehicle body through the locking mechanism.

Drawings

The lock body assembly, the battery pack, the lock mechanism and the vehicle of the present application are described below with reference to the accompanying drawings. In the drawings:

FIG. 1 is an exploded view of the locking mechanism of the present application;

FIG. 2 is a front cross-sectional view of the locking mechanism of the present application;

figure 3 is a block diagram of a guard in the lock body assembly of the present application;

FIG. 4 is a block diagram of the fall arrest member of the lock body assembly of the present application;

figure 5 is a block diagram of an anti-release member in the lock body assembly of the present application.

List of reference numerals

10. A lock body assembly; 11. a mounting seat; 111. mounting holes; 12. a guard; 121. a connecting portion; 1211. a through groove; 1212. a tensioning structure; 122. a partition portion; 13. a connecting member; 131. an operation section; 1311. a flange section; 1312. a nut segment; 132. a fastening section; 1321. a threaded segment; 1322. a light axis segment; 14. an anti-loosening element; 141. a first gasket; 1411. a first radial rib; 1412. a first wedge-shaped face; 142. a second gasket; 1421. a second radial rib; 1422. a second wedge-shaped face; 15. a fall arrest member; 151. an annular base; 152. a claw; 1521. a first connecting structure;

20. a locking assembly; 21. a housing; 22. a floating plate; 23. a locking member;

30. a nut bracket; 31. countersunk head screws; 32. welding a nut;

40. and (4) adding and removing a lock head.

Detailed Description

Preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principles of the present application, and are not intended to limit the scope of protection of the present application. For example, although the following embodiments of the present application are described in connection with an electric vehicle, this is not intended to limit the scope of the present application, and the lock body assembly, battery pack, and locking mechanism of the present application may be applied to other vehicles without departing from the principles of the present application.

It should be noted that in the description of the present application, the terms "in", "up", "down", "vertical", "inside", "outside", and the like indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" in the description of the present application are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to specific situations.

Referring first to figures 1 and 2, the lock body assembly of the present application will be described.

As shown in fig. 1 and 2, in order to solve the problem that the existing locking mechanism is exposed to the environment and is easily invaded by foreign matters, in a first aspect, a lock body assembly 10 of the present application includes a mounting seat 11, a connecting member 13 and a protection member 12. The mounting seat 11 is of a cylindrical structure, the bottom of the mounting seat 11 is open, and the top of the mounting seat is provided with a mounting hole 111. The link 13 has an operation portion 131 and a fastening portion 132 connected to each other, the operation portion 131 is slidably provided to the mounting seat 11, a lower portion of the operation portion 131 can be abutted with the locking and unlocking head 40, and an upper portion of the fastening portion 132 can be passed through the mounting hole 111 and fastened to a target fastener. The shielding member 12 is connected to the operating part 131, and the shielding member 12 is provided to separate the bottom opening of the mounting seat 11 from the inside of the mounting seat 11 when the connecting member 13 is fastened to the target fastener.

For example, in an application where the lock body assembly 10 is fixed to a battery pack, the target fastener may be a vehicle chassis with a locking hole formed therein, or the target fastener may be a locking piece or a locking assembly 20 provided on the vehicle chassis. When the battery pack is installed, the battery pack is lifted to an installation position of a vehicle chassis, then the locking and unlocking device is driven to operate, and the locking and unlocking head 40 of the locking and unlocking device ascends and is in butt joint with the operation part 131 of the connecting piece 13. The connecting member 13 is further lifted in the mounting seat 11 by the unlocking head 40 until the fastening portion 132 is abutted to the target fastener, and then the unlocking head 40 applies a locking torque to the connecting member 13 and continues to lift, so that the fastening portion 132 is fastened to the target fastener. After the installation, protection piece 12 keeps apart the inside of the uncovered and mount pad 11 in bottom of mount pad 11 for the vehicle is at the in-process of traveling, and protection piece 12 can block foreign matters such as mud, sand in the environment inside from the uncovered entering mount pad 11 in bottom of mount pad 11, and then when trading the electricity next time, mount pad 11 is inside can not invaded by the foreign matter, adds the unblock process and can go on smoothly.

It can be seen that, by providing the protection member 12, the lock body assembly 10 can separate the inside of the installation seat 11 from the environment through the protection member 12 after being fastened to the target fastener, thereby preventing foreign matters such as mud and sand in the environment from entering the inside of the lock body assembly 10, improving the success rate and stability of the locking and unlocking process, and improving the user experience.

A preferred embodiment of the present application will now be described with reference to fig. 1 to 5.

As shown in fig. 1 and 2, in a preferred embodiment, the lock body assembly 10 includes a mounting 11, a connector 13, a guard 12, an anti-release member 14, and a fall arrest member 15. The mounting seat 11 is of a cylindrical structure, the bottom of the mounting seat is open, the top of the mounting seat is thick, and a mounting hole 111 is formed in the middle of the top of the mounting seat.

With continued reference to fig. 1 and 2, the connecting member 13 is a high-strength bolt that is integrally molded and formed with an operating portion 131 and a fastening portion 132 that are connected to each other. Specifically, the fastening portion 132 has a threaded section 1321 at an upper portion thereof, an optic axis section 1322 at a lower portion thereof, the operating portion 131 includes a flange section 1311 and a nut section 1312, a chamfer is provided at a top end of the threaded section 1321, a bottom end thereof is connected to an upper end of the optic axis section 1322, a lower end of the optic axis section 1322 is connected to an upper surface of the flange section 1311, and a lower surface of the flange section 1311 is connected to the nut section 1312. The threaded section 1321 is a coarse thread, the threaded section 1321 can penetrate through the mounting hole 111 and is screwed to the target fastener, and the outer diameter of the optical axis section 1322 is smaller than the outer diameter of the thread of the threaded section 1321. The outer diameter of flange section 1311 is substantially equal to the inner diameter of mounting seat 11, nut section 1312 is made of a standard outer hexagonal nut, and the axial (vertical in fig. 2) projected area of flange section 1311 is larger than the axial projected area of nut section 1312. The outer diameter of the flange section 1311 and the inner diameter of the mounting seat 11 may be substantially equal to each other, and the outer diameter of the flange section 1311 and the inner diameter of the mounting seat 11 may be designed to have the same size, but the deviation in the outer diameter setting of the flange section 1311 is a negative value, and/or the deviation in the inner diameter setting of the mounting seat 11 is a positive value. Or they may be approximately equal, or the outer diameter of the flange section 1311 may be slightly smaller (e.g., 1-3mm difference) than the inner diameter of the mounting seat 11, so that there is a slight gap between them.

Referring to fig. 1 to 3, the protection member 12 includes a connection portion 121 and a partition portion 122 connected to each other, the connection portion 121 is connected to the operation portion 131, and the partition portion 122 partitions a bottom opening of the mounting seat 11 from an interior of the mounting seat 11. Specifically, the connecting portion 121 is cylindrical, an inner circumferential surface of the connecting portion 121 is matched with an outer circumferential surface of the operating portion 131, the connecting portion 121 is sleeved on an upper portion of the operating portion 131 and is in interference fit with the operating portion 131, preferably, the inner circumferential surface of the connecting portion 121 is a hexagon socket surface matched with the nut segment 1312, and the connecting portion 121 is sleeved on the upper portion of the nut segment 1312 through the hexagon socket surface. Further, six side surfaces of the inner circumferential surface of the connecting portion 121 are respectively provided with three through slots 1211 extending along the axial direction (vertical direction in fig. 2), and a tensioning structure 1212 is formed on a part of the side surfaces in the six side surfaces. In this application, the tensioning structure 1212 is a rib extending in the axial direction (vertical direction in fig. 2) of the connecting portion 121, and the ribs are provided on three spaced side surfaces among the six side surfaces, and four side surfaces are provided on each side surface, and one portion of each side surface is provided on each of the four portions separated by the three through grooves 1211. During assembly, six sides of the connecting portion 121 are in interference fit with the outer hexagon of the nut segment 1312, wherein the side without the rib is deformed less, and the side with the rib is deformed more, and is tensioned with the upper portion of the nut segment 1312 through the rib.

With continued reference to fig. 1 to 3, the partition portion 122 is also cylindrical, and the upper portion of the partition portion 122 is connected to the connecting portion 121, and the lower portion is an open structure, and the diameter of the open structure is larger than that of the unlocking head 40, so that the unlocking head 40 can be allowed to enter. In the present application, the connecting portion 121 is made of plastic, preferably Polyoxymethylene (POM), the separating portion 122 is made of alloy, preferably stainless steel, and the connecting portion 121 and the separating portion 122 are connected by insert molding. After the connector 13 is fastened to the target fastener, the connecting portion 121 is interference fitted on the upper portion of the nut segment 1312, and the cylindrical partition portion 122 extends downward from the bottom of the connecting portion 121 and extends to the bottom of the mounting seat 11, substantially flush with the bottom surface.

Referring next to fig. 1, 2 and 4, the fall arrest member 15 is removably attached to the bottom of the mounting block 11, the fall arrest member 15 having a through hole formed in the middle thereof, the through hole being configured to allow the unlocking head 40 to pass therethrough, the fall arrest member 15 being configured to prevent the attachment member 13 from falling from the mounting block 11 when the attachment member 13 is disengaged from a target fastener. Specifically, the anti-falling member 15 includes an annular base 151 and a plurality of claws 152 disposed on the annular base 151, the claws 152 are provided with first connecting structures 1521, the inner wall of the bottom of the mounting seat 11 is provided with second connecting structures (not shown in the drawings), the first connecting structures 1521 are connected with the second connecting structures in a clamping manner, and the connecting member 13 can abut against the tops of the claws 152 when being disengaged from a target fastener. In this application, four clamping jaws 152 are uniformly distributed on the annular base 151, a bearing surface is formed at the top of each clamping jaw 152, and a first connecting structure 1521 is formed on the outer side of the top. In this application, first connection structure 1521 is protruding, and second connection structure is for setting up in the inboard ring channel in mount pad 11 lower part, and bellied lateral surface is the cambered surface, and the inner wall of ring channel also is the cambered surface, and the arch can the joint in the ring channel. Wherein, the annular base 151 and the jaws 152 are integrally injection molded, and the material is preferably Polyformaldehyde (POM). Preferably, the diameter of the inner peripheral surface of the annular base 151 is substantially equal to the diameter of the outer peripheral surface of the partition portion 122, so that the inner peripheral surface of the annular base 151 approaches or abuts the outer peripheral surface of the partition portion 122 when the connector 13 is fastened to the target fastener. In the present application, the substantially equal may be that the outer diameter of the partition 122 and the inner diameter of the annular base 151 are equal in size at the time of design, but the deviation in the setting of the outer diameter of the partition 122 is negative, and/or the deviation in the setting of the annular base 151 is positive. Or they may be substantially equal, or the outer diameter of the partition 122 may be slightly smaller (e.g., 1-3mm different) than the inner diameter of the annular base 151, such that there is a slight gap between them.

In a state where the coupling member 13 is not fastened to the target fastener, the coupling member 13 is in a freely slidable state under double guidance of the inner wall of the mount 11 and the mounting hole 111, in which the flange section 1311 abuts against the top surface of the claw 152 under gravity, the lower portion of the nut section 1312 protrudes open from the bottom of the mount 11 together with the partition 122, the threaded section 1321 may protrude through the mounting hole 111 at this time and the upper end of the threaded section 1321 is higher than the mounting hole 111. During tightening of coupling member 13 with the target fastener, unlocking head 40 extends into spacer 122 and abuts nut segment 1312, and causes coupling member 13 to rise, at which time spacer 122 and nut segment 1312 rise simultaneously. After the threaded segment 1321 abuts the target fastener, a locking torque is applied and the lifting continues so that the threaded segment 1321 is fastened to the target fastener. Then, the unlocking head 40 exits the partition portion 122, the lower outer surface of the partition portion 122 abuts against the inner surface of the annular base 151, the bottom surface of the partition portion 122 is substantially flush with the bottom surface of the mounting seat 11, and the bottom opening of the mounting seat 11 is separated from the inside by the partition portion 122, so that mud, sand and the like are prevented from entering the inside of the mounting seat 11, and the sitting posture after bolt unlocking and the cap of the unlocking head 40 during locking are influenced.

When the connecting piece 13 needs to be replaced, the connecting piece 13 can be replaced by pulling the protection piece 12 out and then detaching the anti-falling piece 15 through deformation, and after the replacement is finished, the anti-falling piece 15 and the protection piece 12 are sequentially installed, so that the anti-falling device can be reused. Of course, the protector 12 and the connector 13 may be replaced together after the fall preventing member 15 is directly detached.

Referring to fig. 1, 2 and 5, the anti-release member 14 includes a first pad 141 and a second pad 142 which are engaged with each other in a pair for use. The first spacer 141 is annular and is sleeved on the optic axis segment 1322, the first radial convex ridge 1411 is formed on the upper surface of the first spacer 141, and the first wedge surface 1412 is formed on the lower surface of the first spacer along the circumferential direction. The second spacer 142 is annular and also sleeved on the optical axis 1322 and located below the first spacer 141, a second radial ridge 1421 is formed on a lower surface of the second spacer 142, and a second wedge surface 1422 matched with the first wedge surface 1412 is formed on an upper surface of the second spacer 142 along the circumferential direction. Preferably, a coefficient of friction between the first radial ridge 1411 and the top inner wall of the mounting seat 11 is greater than a coefficient of friction between the first wedge surface 1412 and the second wedge surface 1422, a coefficient of friction between the second radial ridge 1421 and the flange segment 1311 is greater than a coefficient of friction between the first wedge surface 1412 and the second wedge surface 1422, slopes of the first wedge surface 1412 and the second wedge surface 1422 are greater than a thread rise angle of the thread segment 1321, annular inner diameters of the first washer 141 and the second washer 142 are smaller than a thread outer diameter of the thread segment 1321, and a surface hardness of the anti-loosening element 14 is greater than a surface hardness of the connecting element 13.

In one embodiment, the coefficient of friction between the first radial ridges 1411 and the top inner wall of the mounting seat 11 is 2.0 to 2.5 times the coefficient of friction between the first and

second wedge surfaces

1412 and 1422, and the coefficient of friction between the second radial ridges 1421 and the flange segment 1311 is 2.0 to 2.5 times the coefficient of friction between the first and

second wedge surfaces

1412 and 1422. More specifically, the coefficient of friction between the first wedge surface 1412 and the second wedge surface 1422 is selected to be any value between 0.10 and 0.17, the coefficient of friction between the first radial ridge 1411 and the top inner wall of the mounting seat 11, and the coefficient of friction between the second radial ridge 1421 and the flange section 1311 are selected to be any value between 0.20 and 0.35, and those skilled in the art can selectively select the material and surface coating of the two spacers so that the upper and lower surfaces of the two spacers satisfy the specific relationship between the coefficients of friction.

In a specific embodiment, when the bolt is manufactured, the first gasket 141 and the second gasket 142 may be firstly sleeved on the optical axis bolt, and then a thread rolling process is performed on the upper portion of the optical axis bolt, so that an outer diameter of a thread formed after thread rolling (i.e., an outer diameter of the thread section 1321) is larger than annular inner diameters of the first gasket 141 and the second gasket 142, thereby ensuring that the first gasket 141 and the second gasket 142 cannot fall off from the bolt.

In one embodiment, the surface hardness of the anti-loosening element 14 is selected from 460 to 510HV, which is greater than the surface hardness of a high strength bolt of the usual performance class. Wherein, the surface hardness of the 8.8 grade high-strength bolt is 250-320HV, the surface hardness of the 10.9 grade high-strength bolt is 320-380HV, the surface hardness of the 12.9 grade high-strength bolt is 380-430 HV, and one of the several strength grades can be selected as the manufacturing standard of the high-strength bolt.

Referring to fig. 2, after the coupling member 13 is rotatably fastened to the target fastener, the first radial ridges 1411 and the top inner wall of the mounting seat 11 are pressed against each other, the second radial ridges 1421 and the flange section 1311 of the coupling member 13 are pressed against each other, and the first and

second wedge surfaces

1412 and 1422 are pressed into engagement with each other. Since the coefficient of friction between first radial ridge 1411 and the top inner wall of mounting seat 11 and the coefficient of friction between second radial ridge 1421 and flange segment 1311 are both greater than the coefficient of friction between first wedge surface 1412 and second wedge surface 1422, there is no relative sliding between the upper surface of first shim 141 and the top inner wall of mounting seat 11, and there is no relative sliding between the lower surface of second shim 142 and the upper surface of flange segment 1311, and relative sliding only occurs between first wedge surface 1412 and second wedge surface 1422.

When the connecting member 13 tends to loosen, because the slopes of the first wedge-shaped surface 1412 and the second wedge-shaped surface 1422 are both greater than the thread lead angle of the thread segment 1321, the lift amount between the two washers in the axial direction (vertical direction in fig. 2) is greater than the lift amount of the thread segment 1321 in the axial direction, a stroke difference is formed between the two washers, the axial pretightening force of the connecting member 13 is increased when the gasket is fed back into the connecting member 13, and by the wedge effect, the loosening tendency of the connecting member 13 is reduced, so that the loosening does not occur.

In the above preferred embodiment, the fastening portion 132 has a threaded portion 1321 formed thereon, thereby providing high connection stability. The coarse thread is selected for the thread section 1321, so that the connection durability is higher compared with that of a fine thread, the service life of the connecting piece 13 can be prolonged, and the probability of first-tooth meshing failure is reduced. By setting the outer diameter of the flange section 1311 to be equal to the inner diameter of the mounting seat 11, the sliding stability and the connection precision of the connecting piece 13 can be ensured, and seizure and thread slipping caused by axial deflection of the connecting piece 13 are avoided.

Further, by providing the connecting portion 121 and the partition portion 122, the connecting portion 121 can be effectively connected to the operating portion 131, and the partition portion 122 can improve the protection effect. The connecting portion 121 is fitted over the operating portion 131, so that the guard 12 can be mounted on the operating portion 131 without affecting the normal engagement between the unlocking head 40 and the operating portion 131. By providing the through groove 1211, a deformation region can be provided for the inner peripheral surface during the interference fit, reducing the difficulty of mounting the protection member 12. By providing the tensioning structure 1212, the stability of the interference fit between the connecting portion 121 and the operating portion 131 can be improved. By providing the tensioning structure 1212 on a part of the side surface of the inner circumferential surface, the difficulty of mounting the guard piece 12 can be reduced. By providing the partition portion 122 with a cylindrical structure, the protection effect can be improved without affecting the normal butt joint of the locking/unlocking head 40 and the operation portion 131. The connecting portion 121 is made of plastic, so that the connecting portion 121 can be easily deformed and connected, and the partition portion 122 is made of metal or alloy, so that the protection effect can be improved, and the service life of the protection member 12 can be prolonged.

Further, by providing the fall arrest member 15, the attachment member 13 can be prevented from falling out of the mounting seat 11 after being detached from the subject fastener, and positioning of the attachment member 13 and abutment of the locking and unlocking head 40 can also be facilitated. The anti-falling piece 15 is detachably connected to the bottom of the mounting seat 11, so that the connecting piece 13 can be maintained and replaced conveniently. Through setting up annular base member 151 and jack catch 152, conveniently prevent weighing down the dismouting of piece 15, reduce the change and the maintenance degree of difficulty of connecting piece 13. By providing the partition portion 122 extending to the lower portion of the mounting seat 11 and the inner diameter of the annular base 151 being substantially equal to the outer diameter of the outer peripheral surface of the partition portion 122, the protection effect can be improved, and foreign objects can be prevented from entering the lock body assembly 10 from between the inner peripheral surface of the annular base 151 and the outer peripheral surface of the partition portion 122. The anti-falling piece 15 is integrally injection molded, so that the anti-falling piece 15 has the advantages of good performance, easiness in assembly and disassembly, light weight, difficulty in loosening, low cost and the like.

Further, by placing the anti-loosening element 14, the durability and the connection reliability of the lock body assembly 10 can be improved, the service life of the lock body assembly 10 can be prolonged, and the mechanism complexity can be reduced. The existing locking mechanism is in a locking process, the inner wall of the top of the mounting seat 11 directly rubs with the connecting piece 13 as a pressure-bearing surface, the wear degree of the inner wall of the top of the connecting piece 13 and the mounting seat 11 is increased in time, and because the lock body assembly 10 is usually directly and fixedly connected to the battery pack and flows along with the battery pack, the locking assembly 20 is arranged on a vehicle body and flows along with the vehicle, the lock body assembly 10 on the battery pack is required to be in running-in matching with the locking assembly 20 again when the battery pack is replaced at each time, the wear between the lock body assembly and the locking assembly is accelerated, and the mounting seat 11 is not required to be replaced once worn to a certain degree. And this application can shift the wearing surface between anti-loose piece 14 and connecting piece 13 by between connecting piece 13 and the top inner wall of mount pad 11 through set up anti-loose piece 14 between the top inner wall of operation portion 131 and mount pad 11 to the degree of wear of the top inner wall of mount pad 11 that significantly reduces plays the effect of protection mount pad 11. In addition, the anti-loosening element 14 can be arranged to omit an anti-loosening mechanism in the traditional lock body assembly 10, so that the structure of the lock body assembly 10 is greatly simplified, the requirements of miniaturization and light weight of a locking mechanism are favorably met, the manufacturing cost of the lock body assembly 10 is reduced, and the product competitiveness is increased.

The anti-loose piece 14 is provided with the first gasket 141 and the second gasket 142, so that when the connecting piece 13 tends to loose, the wedge-shaped surfaces of the first gasket 141 and the second gasket 142 rotate relatively to generate lifting tension to prevent the connecting piece 13 from loosening, thereby improving the anti-loose effect. Specifically, the friction coefficient between the first radial ridge 1411 and the top inner wall of the mounting seat 11 and the friction coefficient between the second radial ridge 1421 and the flange 1311 are both greater than the friction coefficient between the first wedge-shaped surface 1412 and the second wedge-shaped surface 1422, so that wear only occurs between the first wedge-shaped surface 1412 and the second wedge-shaped surface 1422, the loss of the top inner wall of the mounting seat 11 is greatly reduced, the mounting seat 11 can be protected, and the replacement of the anti-loosening member 14 is more convenient. The slope of the first wedge-shaped surface 1412 and the slope of the second wedge-shaped surface 1422 are greater than the thread lead angle of the thread section 1321, so that when the thread section 1321 tends to loosen, the axial lift between the two washers is greater than the axial lift of the thread section 1321, a stroke difference is formed between the two washers, the axial pretightening force of the connecting piece 13 is increased when the axial lift is fed back into the connecting piece 13, and the loosening tendency of the connecting piece 13 is reduced through the wedge effect, so that the loosening cannot occur. The annular inner diameter of the first gasket 141 and the second gasket 142 is smaller than the outer diameter of the thread section 1321, and the outer diameter of the optical axis section 1322 is smaller than the outer diameter of the thread section 1321, so that the first gasket 141 and the second gasket 142 can be always kept on the optical axis section 1322, the dismounting and the mounting are convenient, the risk that the anti-loosening element 14 is neglected to be mounted, wrongly mounted or falls off can be eliminated, and the connecting element 13 and the anti-loosening element 14 can be used as an assembly and a spare bin for wearing parts. By setting the surface hardness of the anti-loosening element 14 to be greater than that of the connecting element 13, the contact surface state of the connecting element 13 and the gasket is more stable, and the abrasion is normal.

It should be noted that the above preferred embodiments are only used for illustrating the principle of the present application, and are not intended to limit the protection scope of the present application. Without departing from the principles of the present application, those skilled in the art can adjust the setting manner, so that the present application can be applied to more specific application scenarios.

For example, in another alternative embodiment, the installation seat 11 may be configured in a cylindrical structure, and the top of the installation seat is opened with the installation hole 111, and the bottom of the installation seat is opened, and the setting manner of the installation seat may be adjusted by those skilled in the art, and the adjustment includes, but is not limited to, the thickness, the size, and the like of the installation hole 111.

As another example, in an alternative embodiment, the specific arrangement of the connecting member 13 is not exclusive, and those skilled in the art can adjust the arrangement as long as the replaced connecting member 13 satisfies the condition that the operating portion 131 and the fastening portion 132 are provided, and the fastening of the upper portion of the fastening portion 132 to the target fastener can be achieved. For example, a person skilled in the art may adjust the specific arrangement of the operation portion 131 and the fastening portion 132, such as setting the fastening portion 132 as a threaded section 1321 as a whole, or using a fine-pitch thread for the threaded section 1321, or using an optical axis section 1322 and a threaded section 1321 with the same diameter, or omitting the flange section 1311 of the operation portion 131, adjusting the diameter of the flange section 1311, or adjusting the nut section 1312 to be an outer dodecagonal nut or other special nuts. Besides the bolt, the connecting piece 13 can be set to be a rotary buckle, the thread section 1321 is replaced by a transversely-arranged hanging plate, the hanging plate and the connecting section are detachably connected, screwed, connected by pins or connected in other modes, and the like, the hanging plate is always positioned outside the mounting hole 111 of the mounting seat 11, correspondingly, the target fastener is provided with a long groove, arc-shaped protrusions with certain gradients are respectively arranged on two sides of the long groove, the hanging plate rotates after penetrating through the long groove, and the hanging plate climbs along the arc-shaped protrusions to realize the rotary fastening of the hanging plate and the arc-shaped protrusions. The connecting member 13 may also be configured as a snap, and at this time, the threaded section 1321 is replaced by a snap connector, and the snap connector is pushed away from the jaw 152 and then clamped on the jaw 152, so as to achieve the fastening connection with the target fastener.

For another example, although the protection member 12 is described in conjunction with the connection portion 121 and the partition portion 122 in an alternative embodiment, this is merely a preferred embodiment, and in other embodiments, the protection member 12 may be replaced with a structure that can be connected to the operation portion 131 and can separate the bottom opening of the mounting seat 11 from the inside of the mounting seat 11 when the connection member 13 is fastened to the target fastener. For example, the protection member 12 can be a retainer ring, which is sleeved on the nut segment 1312 and abuts against the fall-preventing member 15 under the action of gravity, or abuts against a boss inside the mounting seat 11 under the action of gravity when the fall-preventing member 15 is not provided, or even the retainer ring is fixedly arranged on the upper portion of the nut segment 1312. Therefore, the bottom of the mounting seat 11 and the inside of the mounting seat 11 can be separated, and external mud, sand and the like are prevented from entering the inside of the mounting seat 11.

For another example, in an alternative embodiment, the specific arrangement of the connecting portion 121 and the separating portion 122 is not constant, and those skilled in the art can adjust the arrangement. For example, as nut segment 1312 changes, the shape of connecting portion 121 is adapted. Alternatively, the inner peripheral surface of the connecting portion 121 may not be fitted to the outer peripheral surface of the operating portion 131, as long as both can be effectively connected. Alternatively, the connecting portion 121 may be coupled to the nut segment 1312 by means of bonding, screwing, clipping, welding, or the like, in addition to interference fit, or may be coupled to the flange segment 1311. For another example, the through groove 1211 and the tensioning structure 1212 provided on the inner circumferential surface of the connecting portion 121 are not required, and those skilled in the art can select a specific arrangement manner and whether to arrange the through groove 1211 or not according to a specific application scenario. Besides the vertical ribs, the tensioning structures 1212 may also be convex points, transverse ribs, etc., and the positions where these tensioning structures 1212 are disposed may be all sides of the inner circumferential surface or any partial sides. Alternatively, the partition portion 122 may have other shapes besides a cylindrical shape, such as a disk shape, a horn shape, etc., as long as it can effectively partition the bottom opening of the mounting seat 11 from the inside of the mounting seat 11, and the partition portion 122 does not necessarily extend to the lower portion of the mounting seat 11 and the outer diameter of the outer peripheral surface is substantially equal to the inner diameter of the annular base 151. The connecting portion 121 and the separating portion 122 may be made of plastic or stainless steel, which can be replaced by those skilled in the art. Besides POM materials, other plastics can be used by those skilled in the art as the material for the connection portion 121. In addition to stainless steel, other materials such as aluminum alloy and metallic iron may be used as the material for the partition 122. Of course, other processes than insert molding may be used to connect the connecting portion 121 and the separating portion 122, such as adhesion, heat melting, etc.

As another example, in an alternative embodiment, the fall arrest member 15 is not limited in its configuration and can be modified by one skilled in the art so long as it prevents the attachment member 13 from falling out. For example, the anti-falling member 15 can also be a baffle ring, and the baffle ring is connected to the bottom of the mounting seat 11 by screwing or clamping. For another example, the anti-falling member 15 may also be a circlip, and the inner wall of the bottom of the mounting seat 11 is circumferentially provided with a mounting groove, and the circlip is embedded in the mounting groove. Of course, no matter the retaining ring or the retaining ring is adopted, the anti-falling piece 15 adopting the POM material annular base body 151 and the claw 152 is not convenient to disassemble and assemble.

As another example, the specific configuration of the drop guard 15 is not exclusive and can be adjusted by one skilled in the art. For example, the annular base 151 of the fall arrest member 15 can be replaced by an open loop, provided that a plurality of dogs 152 can be connected together. For another example, the number and arrangement of the claws 152 may be adjusted as long as the connecting member 13 is effectively prevented from falling. For another example, the first connecting structure 1521 may be a groove instead of a protrusion, and correspondingly, the second connecting structure is a protrusion. In addition, when the first connecting structure 1521 is a protrusion, the second connecting structure may also be a plurality of arc-shaped grooves corresponding to the protrusion. In terms of materials, the anti-falling piece 15 can also be made of other plastics, metals, alloys and the like, and the application does not limit the materials.

As another example, in an alternative embodiment, although the anti-loose element 14 is described as a combination of the first pad 141 and the second pad 142 in the above embodiment, this is only a preferred embodiment, and the person skilled in the art can adjust the anti-loose element 14 as long as the adjusted anti-loose element 14 can satisfy the condition that it is disposed between the operation part 131 and the top inner wall of the mounting seat 11 and does not rotate relatively with the top inner wall of the mounting seat 11 when being pressed.

For example, in an alternative embodiment, the anti-loosening element 14 may be a washer, the washer is sleeved on the optical axis segment 1322, the inner diameter of the washer is smaller than the outer diameter of the thread segment 1321, and the roughness of the upper surface of the washer is greater than that of the lower surface of the washer. Preferably, the coefficient of friction between the upper surface of the gasket and the top inner wall of the mount 11 is 2.0 to 2.5 times the coefficient of friction between the lower surface of the gasket and the flange section 1311. So configured, when the gasket is compressed, there is no relative rotation between the top inner wall of mount 11 and the upper surface of the gasket, since the roughness of its upper surface is greater than the roughness of its lower surface, while the upper surface of flange section 1311 of connection 13 and the lower surface of the gasket can rotate relative to each other, which allows the wear surface to be transferred between the upper surface of flange section 1311 and the lower surface of the gasket.

When the anti-loosening element 14 is a gasket, the roughness of the upper surface of the gasket is larger than that of the lower surface of the gasket, so that the gasket does not rotate relative to the inner wall of the top of the mounting seat 11, and the connecting element 13 and the gasket can rotate relative to each other, so that a wear surface is transferred between the gasket and the connecting element 13, the wear of the mounting seat 11 is reduced, and the maintenance convenience is improved. The optical axis section 1322 is sleeved with the gasket, the outer diameter of the optical axis section 1322 is smaller than the thread outer diameter of the thread section 1321, the inner diameter of the gasket is smaller than the thread outer diameter of the thread section 1321, the gasket can be always kept on the optical axis section 1322, the dismounting and mounting are convenient, the risk that the anti-loosening part 14 is neglected to be mounted, wrongly mounted or dropped can be eliminated, the connecting part 13 and the gasket can be used as an assembly and a wearing part to be stored, the assembly and a target fastener can be circulated along with a vehicle, and the locking consistency of the locking mechanism is guaranteed.

In another alternative embodiment, the anti-release member 14 is a washer fixedly attached to the top inner wall of the mounting seat 11. Specifically, a countersunk hole is formed in the gasket, a threaded hole is formed in the inner wall of the top of the mounting seat 11, and a countersunk screw 31 penetrates through the countersunk hole and then is screwed into the threaded hole, so that the gasket is fixedly connected to the inner wall of the top of the mounting seat 11. After the screw connection, the outer surface of the countersunk head screw 31 is located inside the countersunk hole and is not exposed. With this arrangement, because the washer is fixedly connected to the top inner wall of the mounting seat 11 by the countersunk head screws 31, there is no relative rotation therebetween, and friction only occurs between the upper surface of the flange section 1311 and the lower surface of the washer.

Through with packing ring fixed connection on the top inner wall of mount pad 11, can avoid producing the friction between the top inner wall of packing ring and mount pad 11, protect mount pad 11 to avoid wearing and tearing, improve the life of mount pad 11.

In a second aspect of the present application, a battery pack is further provided, where the battery pack includes a housing, and the lock body assembly 10 of any one of the above first aspects is disposed on the housing, where the mounting seat 11 of the lock body assembly 10 is fixedly connected to the housing.

The battery package of this application, through the lock body subassembly 10 that sets up above-mentioned first aspect, can prevent foreign matters such as mud, husky in the environment from getting into inside the lock body subassembly 10, improve the success rate and the stability of adding the unblock process, improve user experience.

Referring back to fig. 1 and 2, the locking mechanism of the present application will now be described.

In a third aspect of the present application, a locking mechanism is further provided, wherein the locking mechanism comprises a locking assembly 20 and the lock body assembly 10 of any one of the above first aspects, and the lock body assembly 10 is cooperatively connected with the locking assembly 20.

In one embodiment, the locking assembly 20 includes a housing 21, a floating plate 22 and a locking member 23, the housing 21 is capable of being fixedly attached to the vehicle and the locking member 23 is housed therein, the floating plate 22 is floatably disposed within the housing 21, and the locking member 23 is fixedly disposed on the floating plate 22. Specifically, a welding nut 32 is arranged on the housing 21, a countersunk hole is arranged on the nut support 30 (such as a vehicle chassis), and the housing 21 is fixedly connected to the nut support 30 by a countersunk screw 31 passing through the countersunk hole and screwed on the welding nut 32. The housing 21 includes a two-part receiving space, a lower receiving space capable of receiving the floating plate 22 and an upper receiving space capable of receiving the locking member 23. The floating plate 22 is confined in the lower accommodation space and is free floating in the accommodation space. The floating plate 22 is also integrally formed at its central portion with a nut as a locking member 23, which is disposed in the upper receiving space. The bottom of the floating plate 22 is provided with a chamfer corresponding to the nut, when the connecting piece 13 is driven by the locking and unlocking device to rotate and rise, the floating plate 22 floats, so that the upper chamfer of the threaded section 1321 is connected with the bottom chamfer of the floating plate 22, the nut can be recognized by the threaded section 1321, after the connecting piece 13 continues to rotate and rise, the threaded section 1321 is in threaded connection with the nut, and in the threaded connection process, the floating plate 22 is limited by the housing 21 to rotate.

The locking mechanism of this application, through the lock body subassembly 10 that sets up above-mentioned first aspect, can prevent foreign matters such as mud, husky in the environment from getting into inside the lock body subassembly 10, improves the success rate and the stability of adding the unblock process, improves user experience. Establish locking piece 23 cover wherein through setting up housing 21, can seal locking piece 23 inside, avoid foreign matters such as mud, sand in the environment to get into locking piece 23 and influence locking piece 23 and connecting piece 13's stability of being connected, improve the locking and unlocking success rate. Through the fixed setting in floating plate 22 of locking piece 23, can realize the butt joint that floats of locking piece 23 under floating plate 22's floating action, improve and add the unblock success rate.

Of course, the specific arrangement of the locking assembly 20 is not limited thereto, and the arrangement can be adjusted by those skilled in the art to meet the requirement of being able to be coupled with the lock body assembly 10. For example, in an alternative embodiment, the locking assembly 20 may include only a fixing plate and the locking member 23, the locking member 23 is fixedly disposed on the fixing plate, and the fixing plate is fixedly disposed on the vehicle. For example, the housing 21 may be replaced with another non-closed structure as long as the rotation of the floating plate 22 can be restricted. The other way round is. The locking member 23 may also be provided separately from the float member, in which case it is necessary to limit the movement of the locking member 23 at the neck.

In a fourth aspect of the present application, a vehicle is further provided, where the vehicle includes a vehicle body, a battery pack, and the locking mechanism of any one of the third aspects, and the battery pack is connected to the vehicle body through the locking mechanism. Specifically, the mounting seat 11 of the lock body assembly 10 is fixedly connected to a battery pack, the locking assembly 20 is arranged on a chassis of a vehicle, and the battery pack is fixed on the chassis of the vehicle by locking the lock body assembly 10 and the locking assembly 20.

Through setting up foretell locking mechanism on the vehicle, can prevent foreign matters such as mud, husky in the environment from getting into inside the locking mechanism, improve the success rate and the stability of locking and unlocking process, improve user experience.

Those skilled in the art will appreciate that alternative embodiments, as well as alternative and preferred embodiments described above, may also be used in a cross-fit manner, so that new embodiments may be combined to suit more specific application scenarios.

It will also be appreciated by those of skill in the art that although some embodiments described herein include some features included in other embodiments instead of others, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the claims of the present application, any of the claimed embodiments may be used in any combination.

So far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.

Claims

1. A lock body assembly, characterized in that the lock body assembly comprises:

2. The lock body assembly of claim 1, wherein the guard member includes a connecting portion connected to the operating portion and a separating portion separating a bottom opening of the mounting seat from an interior of the mounting seat.

3. The lock body assembly of claim 2, wherein the connecting portion is cylindrical and an inner circumferential surface of the connecting portion is adapted to an outer circumferential surface of the operating portion, and the connecting portion is disposed at an upper portion of the operating portion.

4. A lock body assembly according to claim 3, wherein the inner periphery of the connecting portion defines a plurality of axially extending through slots.

5. A lock body assembly according to claim 3, wherein the inner peripheral surface of the connecting portion has a tension structure formed thereon, and the inner peripheral surface of the connecting portion is interference fitted with the operating portion through the tension structure.

6. A lock body assembly according to claim 5, wherein the tensioning arrangement is a rib or nub; and/or

7. The lock body assembly of claim 2, wherein the divider is cylindrical, an upper portion of the divider is connected to the connecting portion, and a lower portion of the divider is open to allow access to a locking and unlocking head.

8. The lock body assembly of claim 2, wherein the connecting portion is made of plastic, the separating portion is made of metal or alloy, and the connecting portion and the separating portion are connected by insert molding.

9. The lock body assembly of claim 1, further comprising a fall arrest member detachably connected to a bottom portion of the mounting seat, a central portion of the fall arrest member being formed with a via configured to allow a locking and unlocking head to pass therethrough, the fall arrest member being configured to prevent the connector from falling from the mounting seat when the connector is disengaged from the target fastener.

10. The lock body assembly of claim 9, wherein the anti-falling piece comprises an annular base body and a plurality of clamping jaws arranged on the annular base body, a first connecting structure is arranged on each clamping jaw, a second connecting structure is arranged on the inner wall of the bottom of the mounting seat, the first connecting structure is clamped with the second connecting structure, and the connecting piece can abut against the top of each clamping jaw when being separated from the target fastener.

11. A lock body assembly as claimed in claim 10, wherein the first connecting structure is provided on the top outer side of the pawl; and/or

12. The lock body assembly of claim 10, wherein the guard extends to a lower portion of the mounting seat and an inner diameter of the annular base is substantially equal to an outer diameter of an outer peripheral surface of the guard.

13. The lock body assembly of claim 9, wherein the fall arrest member is integrally injection molded.

14. The lock body assembly of claim 1, wherein the upper portion of the securing portion is a threaded segment that is capable of passing through the mounting hole and being threaded to the target fastener.

15. The lock body assembly of claim 14, wherein the threaded section is a coarse thread.

16. The lock body assembly of claim 1, wherein the operating portion includes a flange section and a nut section, an upper surface of the flange section is connected to the fastening portion and a lower surface of the flange section is connected to the nut section, and an axial projected area of the flange section is larger than an axial projected area of the nut section.

17. The lock body assembly of claim 16, wherein an outer diameter of the flange segment is substantially equal to an inner diameter of the mounting receptacle, the guard member being coupled to the nut segment.

18. A lock body assembly as claimed in claim 1, further comprising an anti-release member disposed between the operating portion and the top inner wall of the mounting receptacle, the anti-release member being arranged to be squeezed between the operating portion and the top inner wall of the mounting receptacle and to be free of relative rotation with the top inner wall of the mounting receptacle when the securing portion is rotationally secured to a target fastener.

19. The lock body assembly of claim 18, wherein the anti-release member is a washer, the washer is sleeved on the lower portion of the fastening portion, and the roughness of the upper surface of the washer is greater than that of the lower surface of the washer; or

20. A battery pack comprising a housing having the lock body assembly of any one of claims 1-19 disposed thereon.

21. A lock mechanism comprising a lock assembly and a lock body assembly as claimed in any one of claims 1 to 19, wherein the lock body assembly is cooperatively connected to the lock assembly.

22. The latch mechanism of claim 21 wherein said locking assembly includes a latch member adapted to be securely coupled to an upper portion of said fastening portion and a housing adapted to be fixedly coupled to a vehicle and housing said latch member therein.

23. The latch mechanism of claim 22, wherein the latch assembly further comprises a float plate floatably disposed within the housing and restrained from rotation by the housing, the latch member being fixedly disposed on the float plate.

24. A vehicle characterized by comprising a vehicle body, a battery pack, and the lock mechanism of any one of claims 21 to 23, the battery pack being connected to the vehicle body through the lock mechanism.