CN210234708U

CN210234708U - Locking mechanism

Info

Publication number: CN210234708U
Application number: CN201821797750.6U
Authority: CN
Inventors: Xuecheng Yao; 姚学诚; Pengfei Li; 李鹏飞; Yujun Li; 李玉军
Original assignee: Beijing Electric Vehicle Co Ltd; Blue Valley Smart Beijing Energy Technology Co Ltd
Current assignee: Beijing Electric Vehicle Co Ltd; Blue Valley Smart Beijing Energy Technology Co Ltd
Priority date: 2018-11-01
Filing date: 2018-11-01
Publication date: 2020-04-03
Anticipated expiration: 2028-11-01

Abstract

The utility model discloses a locking mechanism, locking mechanism includes: casing, fastener and auto-lock subassembly, the fastener setting is in the casing, and the fastener includes: the thread fixing section and the tool matching section; the self-locking assembly is used for locking and unlocking the fastener, and the self-locking assembly is configured to be close to or far away from the fastener from the lateral direction of the fastener so as to lock and unlock the fastener. According to the utility model discloses a locking mechanism, simple structure, convenient assembling can effectively improve the change efficiency of battery package, and locking mechanism's security is high.

Description

Locking mechanism

Technical Field

The utility model belongs to the technical field of the power battery technique and specifically relates to a locking mechanism is related to.

Background

In recent years, with the rapid development of new energy automobiles, the sales of electric automobiles in the global range is continuously increased, and due to the limitations of the cruising ability and the charging time of power batteries, electric automobile charging stations are developed around the world, so that the electric automobiles are actively promoted to be further popularized.

The battery replacement mode achieves the purpose of supplementing electric energy to the electric automobile by directly replacing the battery pack of the electric automobile, can realize quick supply of the electric energy, and is convenient for battery maintenance and service life prolonging. However, in the aspect of battery replacement, the problems that the power battery is inconvenient to assemble, the safety and the convenience of the locking mechanism cannot be completely met and the like still exist at present.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a locking mechanism, locking mechanism simple structure, convenient assembling, the security is high.

According to the utility model discloses locking mechanism, include: a housing; a fastener disposed within the housing, the fastener comprising: the thread fixing section and the tool matching section; a self-locking assembly for locking and unlocking the fastener, the self-locking assembly configured to approach or move away from the fastener from a lateral side of the fastener, thereby locking and unlocking the fastener.

According to the utility model discloses a locking mechanism utilizes casing, fastener and auto-lock subassembly, and the auto-lock piece carries out locking or unblock to the fastener with the wobbling mode, and implementation mode is simple, and simple structure, convenient assembling, and the security is high, has avoided power battery to take place not hard up the risk that drops even because of vibrations in the car operation process.

Further, the self-locking assembly has a self-locking block rotation axis, and the self-locking assembly is configured to approach or depart from the fastener in an oscillating manner around the self-locking block rotation axis.

Optionally, the self-locking block axis of rotation is spaced parallel to the fastener.

Further, the self-locking assembly comprises: the self-locking block is provided with a self-locking block rotating axis and abuts against the fastener through friction to lock the fastener.

Optionally, the self-locking piece has a driving inclined surface, the distance between the driving inclined surface and the fastener increases from top to bottom, and the driving inclined surface is suitable for being matched with the end face of a tool, so that the self-locking piece can swing around the rotation axis of the self-locking piece.

Further, the locking mechanism further comprises: the elastic piece is connected with the self-locking block.

Optionally, the elastic member is a return spring, and the return spring is connected with the self-locking block.

Optionally, the return spring is a return torsion spring.

According to the utility model discloses a locking mechanism, the fastener still includes: an annular flange disposed between the threaded securing section and the tool engaging section, the self-locking block adapted to frictionally stop against the annular flange to lock the fastener.

Further, the locking mechanism further comprises: the self-locking block shaft is connected with the shell through the self-locking block shaft upper mounting hole site and the self-locking block shaft lower mounting hole site.

Optionally, the locking mechanism further comprises: the supporting plate is provided with a step surface in the shell and supported on the step surface, and the annular flange is suitable for being supported on the supporting plate.

Furthermore, an avoiding notch is formed in the position, facing the self-locking block, of the supporting plate.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a cross-sectional view of a locking mechanism according to an embodiment of the present invention;

fig. 2 is an exploded view of a locking mechanism according to an embodiment of the present invention;

fig. 3 is an assembly view of a locking mechanism according to an embodiment of the present invention;

fig. 4 is a schematic view of the fastener of fig. 2.

Reference numerals:

the locking mechanism 100, the housing 1, the first housing 11, the first cavity 111, the top wall 112, the first opening 1121, the second opening 113, the first section 114, the second section 115, the step surface 116, the second housing 12, the second cavity 121, the bottom wall 122, the self-locking block on-shaft mounting hole location 123, the fastener 2, the thread fixing section 21, the tool matching section 22, the annular flange 23, the self-locking assembly 3, the self-locking block 31, the driving inclined surface 311, the elastic member 32, the self-locking block shaft 33, the baffle 4, the self-locking block off-shaft mounting hole location 41, the support plate 5 and the tool 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

A locking mechanism 100 according to an embodiment of the present invention is described below with reference to fig. 1-4. As shown in fig. 1 to 4, a locking mechanism 100 according to an embodiment of the present invention includes: a housing 1, a fastener 2 and a self-locking assembly 3. The locking mechanism 100 of the embodiment of the present invention can be used for quick replacement of a battery pack.

As shown in fig. 1, according to the locking mechanism 100 of an embodiment of the present invention, a cavity 11 is formed in the housing 1, the fastening member 2 is disposed in the cavity 11 of the housing 1, and the fastening member 2 may include: a threaded fixing section 21 and a tool fitting section 22; the self-locking assembly 3 is configured to move closer to or farther from the fastener 2 from the side of the fastener 2, thereby locking and unlocking the fastener 2. Optionally, the self-locking assembly 3 has a self-locking block rotation axis spaced parallel to the fastener 2, the self-locking assembly 3 being configured to swing closer to or further from the fastener 2 about the self-locking block rotation axis. That is to say, when installing fixedly to the battery package, can make auto-lock subassembly 3 keep away from fastener 2 around self-locking piece axis of rotation with wobbling mode, reuse instrument 6 fixes the fastener on the battery package of screwing, after the installation is fixed to be accomplished, auto-lock subassembly 3 can be close to fastener 2 around self-locking piece axis of rotation with wobbling mode to carry out the locking to fastener 2, prevent that it from taking place to rotate under the effect of great external force and battery package gravity, thereby lead to the battery package pine to take off and drop even.

Further, the self-locking assembly 3 may include: from locking piece 31, locking piece 31 has locking piece axis of rotation, and locking piece 31 is through friction fit with fastener 2 with locking fastener 2, and from this, locking piece 31 is big to fastener 2's locking power, and locking fail safe nature is high.

That is to say, when using tool 6 jacking from the locking piece 31, from the locking piece 31 can be rotatory and leave fastener 2 along from the locking piece axis of rotation, use tool 6 rotatory fastener 2 this moment, make fastener 2 and battery package fastening, after fixed, release tool 6, from locking piece 31 locking fastener 2 again under the elastic recovery effect of elastic component 32 to lock fastener 2, avoid power battery to take place to become flexible or even the risk that drops because of vibrations in the car operation.

Optionally, in an embodiment of the present invention, the self-locking piece 31 may have a driving inclined plane 311, the distance between the driving inclined plane 311 and the fastener 2 increases from top to bottom, the driving inclined plane 311 is suitable for being matched with the end face of the tool 6, so that the self-locking piece 31 can swing around the rotation axis of the self-locking piece, thereby, by using the driving inclined plane 311, when the tool 6 moves along the axial direction of the fastener 2, the end face of the tool 6 can be matched with the driving inclined plane 311 in a contact manner, and applies a thrust to the driving inclined plane 311, the self-locking piece 31 can swing along the rotation axis of the self-locking piece under the thrust action of the tool 6 and keep away from the fastener 2, thereby realizing the unlocking of the fastener 2, and.

The utility model discloses locking mechanism can also include: and an elastic member 32, the elastic member 32 being connected to the self-locking piece 31 to apply an elastic restoring force to the self-locking piece 31 after the fastening of the fastening member 2 to the battery pack is completed, so that the fastening member 2 is re-locked by the self-locking piece 31.

Alternatively, the elastic member 32 may be a return spring connected to the self-locking piece 31 so as to accumulate elastic energy after the self-locking piece 31 is separated from the fastener 2, and an elastic restoring force can be applied to the self-locking piece 31 in a subsequent process to frictionally lock the self-locking piece 31 with the fastener 2.

Further, the return spring may be a return torsion spring, which can be sleeved on the rotation axis of the self-locking block, so as to better achieve the above-mentioned functions, and the elastic member 32 has a simple structure, is convenient to install, and has a low manufacturing cost of the whole locking mechanism 100.

As shown in fig. 1-2, 4, the fastener 2 may further include: an annular flange 23, the annular flange 23 being positionable between the threaded securing section 21 and the tool engaging section 22, the self-locking block 31 being adapted to frictionally abut against the annular flange 23 to lock the fastener 2, optionally the annular flange 23 and the self-locking block 31 being in intimate contact for limiting relative movement therebetween. Generally, the annular flange 23 and the outer side surface thereof can be provided in various forms, for example, the annular flange 23 can be provided as a polygonal prism-shaped protrusion, and the surface of the annular protrusion can also be provided as a strong friction component, so that when the self-locking component 3 is matched with the annular flange, the relative fixing of the position between the two is facilitated. Optionally, the locking mechanism of the embodiment of the present invention may further include: self-locking block shaft 33, the bottom of casing 1 still is provided with baffle 4, is provided with self-locking block off-axis installation hole site 41 on baffle 4, is provided with self-locking block on-axis installation hole site 123 on the roof of casing 1, and self-locking block shaft 33 links to each other with casing 1 through self-locking block on-axis installation hole site 123 and self-locking block off-axis installation hole site 41. Further, the locking mechanism of the embodiment of the present invention can further include: the supporting plate 5, the housing 1 has a step surface 116 formed therein, the supporting plate 5 is supported on the step surface 116, and the annular flange 23 is adapted to be supported on the supporting plate 5.

Further, as shown in fig. 2, the support plate 5 may be provided with an avoidance notch, and the avoidance notch is opened toward the position of the self-locking piece 31 so as not to obstruct the rotation of the self-locking piece 31 and to play a role of avoiding the self-locking piece 31.

Specifically, as shown in fig. 1 to 3, the housing 1 may include: the first and

second housings

11 and 12 are respectively formed with a first chamber 111 and a second chamber 121 in the first and

second housings

11 and 12, wherein the first chamber 111 is configured in a cylindrical shape, the second chamber 121 is configured in a rectangular parallelepiped shape, and the first and

second chambers

111 and 121 are arranged in parallel and communicate with each other.

Further, a first opening 1121 and a second opening 113 may be respectively formed at both ends of the first housing 11, the first opening 1121 is formed on the top wall 112 of the housing 1, the lower end of the housing 1 is opened to form the second opening 113, and the size of the first opening 1121 is smaller than that of the second opening 113, the screw thread fixing section 21 and the tool fitting section 22 may respectively protrude from the first opening 1121 and the second opening 113, so that the screw thread fixing section 21 may be fastened with the battery pack, and the tool 6 may be conveniently fitted on the tool fitting section 22 to rotatably screw or dismount the fastener 2.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

Alternatively, the tool engagement section 22 may be configured in a polygonal prism shape, such as a hexagonal prism shape, thereby facilitating the use of a conventional hexagonal-headed tool 6 to be fitted over the tool engagement section 22 to rotate the fastener 2 to fixedly attach or detach the fastener 2 to or from the battery pack.

As shown in fig. 1-3, the bottom of the second housing 12 may further be provided with a baffle 4, the baffle 4 may be fixedly connected to the bottom wall 122 of the second housing 12 through screws, such as bolts, the baffle 4 is provided with a self-locking block mounting hole site 41 below the shaft, the top wall 112 of the second housing 12 is provided with a self-locking block mounting hole site 123 above the shaft, the self-locking block shaft 33 is disposed in the second cavity 121 and connected to the self-locking block mounting hole site 123 above the shaft and the self-locking block mounting hole site 41 below the shaft, thereby facilitating the mounting of the self-locking block shaft 33, and the baffle 4 may prevent external impurities, dust, etc., from entering the cavity 11 (such as the first cavity 111 and the second cavity 121) of the housing 1 and causing frictional wear to the fastening member 2 and the self.

Optionally, the locking mechanism 100 of the embodiment of the present invention may further include: the support plate 5, the first housing 11 includes a first section 114 and a second section 115 communicating with each other inside, the inner diameter of the first section 114 is smaller than the inner diameter of the second section 115, a step surface 116 is provided between the first section 114 and the second section 115, the support plate 5 is located on the step surface 116, the annular flange 23 is adapted to be supported on the support plate 5, and a through hole of the fastening member 2 is provided at the center of the support plate 5, the through hole of the fastening member 2 is a circular hole to facilitate free rotation of the fastening member 2, and the radial dimension of the through hole of the fastening member 2 is smaller than the radial dimension of the annular flange 23, thereby the fastening member 2 is confined in the second cavity.

The operation of the locking mechanism 100 according to the embodiment of the present invention is described in detail below with reference to fig. 1 to 4: the head of the locking tool 6 is sleeved on the tool matching section 22, the self-locking block 31 is jacked up by the upper end face of the locking tool 6, the self-locking block 31 swings along the rotation axis of the self-locking block and is separated from the fastening piece 2, the elastic piece 32 can be extruded in the swinging process of the self-locking block 31, the elastic piece 32 (such as a return torsion spring) deforms and stores elastic energy, the fastening piece 2 is rotated, the thread fixing section 21 is screwed and matched on the power battery pack, at the moment, the locking tool 6 is taken down, the self-locking block 31 is released, the self-locking block 31 swings under the elastic return action of the elastic piece 32 and is in friction locking with the fastening piece 2, the rotation of the fastening piece 2 is limited, and the safe locking of the fastening piece 2 on the power battery is realized.

In summary, according to the locking mechanism 100 of the embodiment of the present invention, the power battery is locked by the fastener 2, so that the replacement efficiency of the battery pack is improved; after the fastening member 2 is screwed, the self-locking block 31 can return under the action of the elastic member 32 (such as a return torsion spring), and the self-locking block is frictionally abutted to the fastening member 2 and locks the fastening member 2, so that the rotation of the fastening member 2 is limited, the safety of the locking mechanism 100 is improved, and the risk that the power battery is loosened or even falls off due to vibration in the running process of the automobile is avoided.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A locking mechanism, comprising:

a housing (1);

a fastener (2), the fastener (2) being disposed within the housing (1), the fastener (2) comprising: a thread fixing section (21) and a tool matching section (22);

a self-locking assembly (3), the self-locking assembly (3) being used for locking and unlocking the fastener (2), the self-locking assembly (3) being configured to approach or depart from the fastener (2) from the side direction of the fastener (2) so as to lock and unlock the fastener (2).

2. The locking mechanism according to claim 1, wherein the self-locking assembly (3) has a self-locking block rotation axis, the self-locking assembly (3) being configured to approach or move away from the fastener (2) in an oscillating manner about the self-locking block rotation axis.

3. The locking mechanism of claim 2 wherein the self-locking block axis of rotation is spaced parallel to the fastener (2).

4. Locking mechanism according to claim 2, characterized in that the self-locking assembly (3) comprises: a self-locking block (31), the self-locking block (31) having a self-locking block axis of rotation, the self-locking block (31) being frictionally stopped against the fastener (2) to lock the fastener (2).

5. Locking mechanism according to claim 4, characterized in that the self-locking piece (31) has a driving bevel (311), the distance between the driving bevel (311) and the fastener (2) increasing from top to bottom, the driving bevel (311) being adapted to cooperate with the tool (6) end face, so that the self-locking piece (31) can swing around the self-locking piece rotation axis.

6. The latch mechanism of claim 4, further comprising: an elastic member (32), the elastic member (32) being connected to the self-locking piece (31).

7. Locking mechanism according to claim 6, characterized in that the elastic element (32) is a return spring, which is connected to the self-locking piece (31).

8. The latching mechanism of claim 7, wherein the return spring is a return torsion spring.

9. The locking mechanism according to claim 1, wherein the fastener (2) further comprises: an annular flange (23), the annular flange (23) being disposed between the threaded securing section (21) and the tool engaging section (22), the self-locking block (31) being adapted to frictionally stop against the annular flange (23) to lock the fastener (2).

10. The latch mechanism of claim 9, further comprising: the self-locking block comprises a self-locking block shaft (33), a baffle (4) is further arranged at the bottom of the shell (1), a self-locking block shaft lower mounting hole site (41) is arranged on the baffle (4), a self-locking block shaft upper mounting hole site (123) is arranged on the top wall of the shell (1), and the self-locking block shaft (33) passes through the self-locking block shaft upper mounting hole site (123) and the self-locking block shaft lower mounting hole site (41) and the shell (1) are connected.

11. The latch mechanism of claim 10, further comprising: a support plate (5), a step surface (116) being formed in the housing (1), the support plate (5) being supported on the step surface (116), the annular flange (23) being adapted to be supported on the support plate (5).

12. Locking mechanism according to claim 11, characterized in that the support plate (5) is provided with an escape notch at a position facing the self-locking piece (31).