CN220060153U

CN220060153U - Aluminum alloy bolt

Info

Publication number: CN220060153U
Application number: CN202321661658.8U
Authority: CN
Inventors: 褚立汉
Original assignee: Suzhou Xinkai Fastening System Co ltd
Current assignee: Suzhou Xinkai Fastening System Co ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-11-21
Anticipated expiration: 2033-06-28

Abstract

The utility model relates to the technical field of mechanical connection, in particular to an aluminum alloy bolt which is used for splicing and assembling a vehicle body mounting plate and a battery box mounting plate together. Compared with the traditional method, the technical scheme has the advantages that the first bolt head and the second bolt head respectively extrude the vehicle body mounting plate and the battery box mounting plate through the threaded connection of the connecting column and the threaded column, so that the connection between the battery box and the vehicle body is fixed, the threaded column and the connecting column can be effectively prevented from rotating relatively under the action of no external force under the abutting action of the anti-falling piece and the extrusion block, and the aluminum alloy bolt is prevented from falling off in the use process.

Description

Aluminum alloy bolt

Technical Field

The utility model relates to the technical field of mechanical connection, in particular to an aluminum alloy bolt.

Background

The magnesium alloy is an ideal lightweight material for the new energy electric drive assembly shell, and in order to solve the galvanic corrosion between the magnesium alloy shell and the fastener, the magnesium alloy shell is fastened by adopting an aluminum alloy bolt.

The patent publication number is: the patent document of CN218031012U discloses a bolt that new energy automobile battery installation was used, including the bolt head, with bolt head threaded connection's nut, this scheme can make the elastic slice support tightly with the hole site of installation after bolt head and nut connection through elastic slice and the depression bar that set up, effectively prevent that it from shaking the back and take place to deflect, improves the stability in the bolt use.

The elastic piece is abutted against the hole site of the installation to limit the displacement of the bolt head and the nut, but when the bolt head and the nut in the prior art are disassembled, the nut can be limited to rotate relative to the screw rod under the cooperation of the elastic rod, the positioning head and the positioning port, so that the disassembly is very laborious, and even the situation that the nut cannot be disassembled due to the clamping of the positioning head and the positioning port occurs.

Disclosure of Invention

In order to overcome the technical problems, the utility model aims to provide an aluminum alloy bolt, which solves the problem that the current bolt head and nut are easy to shift and loosen due to external jolt after being locked.

The aim of the utility model can be achieved by the following technical scheme:

an aluminum alloy bolt is used for splicing and assembling a vehicle body mounting plate and a battery box mounting plate together and comprises a first bolt head and a second bolt head which are arranged from bottom to top, wherein a connecting column is connected to the first bolt head, a threaded column is connected to the second bolt head, a cavity for accommodating the threaded column is formed in the middle of the connecting column, mounting holes are formed in positions, corresponding to the connecting column, of the vehicle body mounting plate and the battery box mounting plate, and the first bolt head and the second bolt head are connected with each other through threads of the connecting column and the threaded column to combine the vehicle body mounting plate and the battery box mounting plate together;

the outer wall of the connecting column is also movably connected with an anti-falling part, one end of the anti-falling part extends into the cavity of the connecting column and is abutted with the threaded column, the other end of the anti-falling part is abutted with the inner wall of the mounting hole, and limiting constraint is carried out on the threaded column through the abutting of the anti-falling part.

Further, the first bolt head and the second bolt head are both polygonal structures.

The battery box is characterized in that the outer wall of the connecting column is sleeved with a first gasket, the outer part of the threaded column is sleeved with a second gasket, the outer diameter of the first gasket is larger than that of the second gasket, when the connecting column and the threaded column are combined together, the first gasket is arranged between the first bolt head and the vehicle body mounting plate, and the second gasket is arranged between the second bolt head and the battery box mounting plate.

Further, a first slot, a thread groove and a second slot are sequentially formed in the cavity of the connecting column from bottom to top, the thread column is in threaded connection with the thread groove, the positions of the top end and the bottom end of the thread column, corresponding to the first slot and the second slot, are respectively connected with a first extrusion block and a second extrusion block, the first slot is matched with the first extrusion block in size, the second slot is matched with the second extrusion block in size, and the inner diameter of the first slot is larger than that of the second slot.

The anti-falling piece comprises an anti-falling piece I and an anti-falling piece II, a limiting groove I and a limiting groove II are formed in the positions, corresponding to the slot I and the slot II, of the connecting column respectively, the limiting groove I and the limiting groove II are respectively sleeved with the anti-falling piece I and the anti-falling piece II in a sliding mode, one end, facing the slot I, of the anti-falling piece I is abutted to the extrusion block I, and one end, facing the slot II, of the anti-falling piece II is abutted to the extrusion block II.

Further, an extrusion surface is formed at the position of the extrusion block I corresponding to the first pressing part of the anti-falling piece, and the surfaces of the extrusion surface and the extrusion block II are inclined surfaces which gradually increase in width from bottom to top.

Further, the first anti-drop piece comprises a connecting block which is sleeved with the first limiting groove in a sliding mode, one end, facing the first slot, of the connecting block is connected with an arc-shaped plate, the surface of the arc-shaped plate and the surface of one end, extending out of the connecting column, of the connecting block are provided with anti-slip ribs, and the anti-slip ribs are made of elastic materials.

Further, the surface of one end of the second anti-falling piece, which is abutted against the second extrusion block, is an arc-shaped surface.

Further, the first gasket and the second gasket are made of elastic materials.

The utility model has the beneficial effects that:

compared with the traditional method, the technical scheme has the advantages that the first bolt head and the second bolt head are respectively extruded to the vehicle body mounting plate and the battery box mounting plate through the threaded connection of the connecting column and the threaded column, connection fixation between the battery box and the vehicle body is achieved, the threaded column can be effectively prevented from rotating relative to the connecting column under the action of no external force under the abutting action of the anti-falling part and the extrusion block, so that the aluminum alloy bolt is prevented from falling off in the use process, and when the aluminum alloy bolt is required to be disassembled, the anti-falling part and the extrusion block can not influence the threaded column to be screwed out from the connecting column, and the aluminum alloy bolt is ensured to be disassembled and installed according to requirements.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a schematic view of the use of the present utility model;

FIG. 3 is an exploded view of the present utility model;

FIG. 4 is a perspective view of a second bolt head and threaded post of the present utility model;

FIG. 5 is a cross-sectional view of a bolt head I and a connecting post of the present utility model;

FIG. 6 is a cross-sectional view of a connector post of the present utility model;

fig. 7 is a perspective view of the first anti-slip member of the present utility model.

In the figure: 1. a first bolt head; 11. a first gasket; 2. a connecting column; 21. a first slot; 22. a thread groove; 23. a second slot; 24. a first limit groove; 25. a limiting groove II; 3. a second bolt head; 31. a second gasket; 4. a threaded column; 41. extruding a first block; 42. extruding a second block; 43. extruding the surface; 5. an anti-drop member I; 51. a connecting block; 52. an arc-shaped plate; 53. an anti-slip rib; 6. an anti-drop piece II; 7. a vehicle body mounting plate; 8. and a battery box mounting plate.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, an aluminum alloy bolt is used for splicing and assembling a vehicle body mounting plate 7 and a battery box mounting plate 8 together, and comprises a first bolt head 1 and a second bolt head 3 which are arranged from bottom to top, wherein the first bolt head 1 is connected with a connecting column 2, the second bolt head 3 is connected with a threaded column 4, a cavity for accommodating the threaded column 4 is formed in the middle part of the connecting column 2, mounting holes are formed in positions, corresponding to the connecting column 2, of the vehicle body mounting plate 7 and the battery box mounting plate 8, and the first bolt head 1 and the second bolt head 3 are connected with each other through threads of the connecting column 2 and the threaded column 4 to combine the vehicle body mounting plate 7 and the battery box mounting plate 8;

as shown in fig. 1, fig. 2 and fig. 3, in the technical scheme, through the threaded connection of the connecting post 2 and the threaded post 4, the first bolt head 1 and the second bolt head 3 respectively extrude the vehicle body mounting plate 7 and the battery box mounting plate 8, connection fixation between the battery box and the vehicle body is achieved, in the scheme, the first gasket 11 is sleeved on the outer wall of the connecting post 2, the second gasket 31 is sleeved on the outer wall of the threaded post 4, the outer diameter of the first gasket 11 is larger than the outer diameter of the second gasket 31, the first gasket 11 and the second gasket 31 are made of elastic materials, after the connecting post 2 and the threaded post 4 are combined together, the first gasket 11 is arranged between the first bolt head 1 and the vehicle body mounting plate 7, the second gasket 31 is arranged between the second bolt head 3 and the battery box mounting plate 8, friction force between the first bolt head 1 and the vehicle body mounting plate 7 can be increased through the first gasket 11, friction force between the first bolt head 3 and the battery box mounting plate 8 can be increased, deflection of the first bolt head 1 and the second bolt head 3 is avoided, and the second gasket 3 is further ensured, and stability of the aluminum alloy bolt after installation is further ensured.

As shown in fig. 1, in this embodiment, the first bolt head 1 and the second bolt head 3 are both polygonal structures, so that they are convenient to hold and screw.

As shown in fig. 3, 4, 5 and 6, a first slot 21, a thread groove 22 and a second slot 23 are sequentially formed in the cavity of the connecting column 2 from bottom to top, the thread column 4 is in threaded connection with the thread groove 22, the positions of the top end and the bottom end of the thread column 4 corresponding to the first slot 21 and the second slot 23 are respectively connected with a first extrusion block 41 and a second extrusion block 42, the sizes of the first slot 21 and the first extrusion block 41 are matched, the sizes of the second slot 23 and the second extrusion block 42 are matched, the inner diameter of the first slot 21 is larger than the inner diameter of the second slot 23, and the second extrusion block 42 can move downwards through the first slot 21 when the thread column 4 is connected with the thread groove 22.

As shown in fig. 1 and 2, the outer wall of the connecting column 2 is further provided with a plurality of anti-falling members, the anti-falling members are equiangularly distributed on the annular wall of the connecting column 2, the inner ends of the anti-falling members extend into the cavity of the connecting column 2 and are abutted with the threaded column 4, the outer ends of the anti-falling members are abutted with the inner wall of the mounting hole, the anti-falling members can relatively rotate relative to the connecting column 2 at a certain distance relative to the inner ends and the outer ends of the anti-falling members, when the threaded column 4 is connected with the threaded groove 22, the threaded column 4 and the extrusion block 41 and the extrusion block 42 synchronously rotate, the inner ends of the anti-falling members are extruded by the outer walls of the threaded column 4, the extrusion block 41 and the extrusion block 42, the outer ends of the anti-falling members are extruded by the inner walls of the threaded column 4, the outer ends of the anti-falling members are abutted against the inner wall of the mounting hole of the mounting plate 7 of the car body and the mounting plate 8, the anti-falling members are limited and restrained by the abutment of the anti-falling members, the threaded column 4 can be effectively prevented from rotating relative to the connecting column 2 under the action of no external force, the threaded column 4 is prevented from being moved out in an outward rotation under the action of the external force, the action of the screw, the aluminum alloy is guaranteed, the aluminum alloy is automatically used to be prevented from falling off, and the aluminum alloy is not required to be detached from the threaded column 2.

Embodiment two:

as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, an aluminum alloy bolt is used for splicing and assembling a vehicle body mounting plate 7 and a battery box mounting plate 8 together, and comprises a first bolt head 1 and a second bolt head 3 which are arranged from bottom to top, wherein the first bolt head 1 is connected with a connecting column 2, the second bolt head 3 is connected with a threaded column 4, a cavity for accommodating the threaded column 4 is formed in the middle of the connecting column 2, mounting holes are formed in positions, corresponding to the connecting column 2, of the vehicle body mounting plate 7 and the battery box mounting plate 8, and the vehicle body mounting plate 7 and the battery box mounting plate 8 are combined together through threaded connection of the connecting column 2 and the threaded column 4 between the first bolt head 1 and the second bolt head 3, so that compared with the first embodiment:

as shown in fig. 2, 3, 4, 5 and 6, the anti-falling member includes an anti-falling member first 5 and an anti-falling member second 6, the positions of the connecting column 2 corresponding to the first slot 21 and the second slot 23 are respectively formed with a first limit slot 24 and a second limit slot 25, the first limit slot 24 and the second limit slot 25 are respectively in sliding sleeve connection with the anti-falling member first 5 and the anti-falling member second 6, one end of the anti-falling member first 5 facing the first slot 21 is abutted with the extrusion block first 41, one end of the anti-falling member second 6 facing the second slot 23 is abutted with the extrusion block second 42, an extrusion surface 43 is formed at a position of the extrusion block first 41 corresponding to the abutment of the anti-falling member first 5, the surfaces of the extrusion surface 43 and the extrusion block second 42 are inclined planes gradually increasing from bottom to top, when the threaded column 4 is in threaded connection with the threaded slot 22, the first extrusion block 41 and the extrusion block second 42 are driven to rotate downwards, in the process, the extrusion block first 41 extrudes the anti-falling member second 42 to extrude the anti-falling member second 6, and the extrusion block second 42 is prevented from rotating under the action of the relative external force of the extrusion block 41 and the extrusion block second 42.

As shown in fig. 6 and 7, the first anti-drop member 5 includes a connecting block 51 slidably sleeved with the first limiting groove 24, one end of the connecting block 51 facing the first slot 21 is connected with an arc plate 52, the surface of the arc plate 52 and one end surface of the connecting block 51 extending out of the connecting column 2 are both provided with anti-slip ribs 53, the anti-slip ribs 53 are made of elastic materials, and friction force between the first anti-drop member 5 and the first extrusion block 41 and friction force between the connecting column 2 and the inner wall of the mounting hole can be increased, so that the connecting column 2 is prevented from rotating in the mounting hole;

in this embodiment, the surfaces of the pressing surface 43 and the second pressing block 42 are inclined surfaces gradually widened from bottom to top, and the surface of the end of the second anti-falling member 6 abutting against the second pressing block 42 is an arc surface, so that the labor is saved when the threaded column 4 rotates downwards and upwards.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative and explanatory of the utility model, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the utility model or exceeding the scope of the utility model as defined in the claims.

Claims

1. An aluminum alloy bolt for splicing and assembling a vehicle body mounting plate (7) and a battery box mounting plate (8) together comprises a first bolt head (1) and a second bolt head (3) which are arranged from bottom to top, and is characterized in that the first bolt head (1) is connected with a connecting column (2), the second bolt head (3) is connected with a threaded column (4), a cavity for accommodating the threaded column (4) is formed in the middle of the connecting column (2), mounting holes are formed in positions, corresponding to the connecting column (2), of the vehicle body mounting plate (7) and the battery box mounting plate (8), and the first bolt head (1) and the second bolt head (3) are combined together through threaded connection of the connecting column (2) and the threaded column (4);

the outer wall of the connecting column (2) is further movably connected with an anti-falling part, one end of the anti-falling part extends into the cavity of the connecting column (2) and is abutted to the threaded column (4), the other end of the anti-falling part is abutted to the inner wall of the mounting hole, and limiting constraint is carried out on the threaded column (4) through the abutting of the anti-falling part.

2. An aluminium alloy bolt according to claim 1, wherein the first bolt head (1) and the second bolt head (3) are of polygonal configuration.

3. The aluminum alloy bolt according to claim 1, wherein a first gasket (11) is sleeved on the outer wall of the connecting column (2), a second gasket (31) is sleeved on the outer portion of the threaded column (4), the outer diameter of the first gasket (11) is larger than that of the second gasket (31), when the connecting column (2) and the threaded column (4) are combined together, the first gasket (11) is arranged between the first bolt head (1) and the vehicle body mounting plate (7), and the second gasket (31) is arranged between the second bolt head (3) and the battery box mounting plate (8).

4. The aluminum alloy bolt according to claim 1, wherein a first slot (21), a threaded groove (22) and a second slot (23) are sequentially formed in the cavity of the connecting column (2) from bottom to top, the threaded column (4) is in threaded connection with the threaded groove (22), a first extrusion block (41) and a second extrusion block (42) are respectively connected to the top end and the bottom end of the threaded column (4) corresponding to the first slot (21) and the second slot (23), the first slot (21) and the first extrusion block (41) are matched in size, the second slot (23) and the second extrusion block (42) are matched in size, and the inner diameter of the first slot (21) is larger than the inner diameter of the second slot (23).

5. The aluminum alloy bolt according to claim 4, wherein the anti-falling part comprises an anti-falling part I (5) and an anti-falling part II (6), a limiting groove I (24) and a limiting groove II (25) are formed in positions of the connecting column (2) corresponding to the slot I (21) and the slot II (23) respectively, the limiting groove I (24) and the limiting groove II (25) are in sliding sleeve joint with the anti-falling part I (5) and the anti-falling part II (6) respectively, one end of the anti-falling part I (5) facing the slot I (21) is in butt joint with the extrusion block I (41), and one end of the anti-falling part II (6) facing the slot II (23) is in butt joint with the extrusion block II (42).

6. The aluminum alloy bolt according to claim 5, wherein the first extrusion block (41) is provided with an extrusion surface (43) at a position corresponding to the first anti-falling piece (5), and the surfaces of the extrusion surface (43) and the second extrusion block (42) are inclined surfaces gradually increasing in width from bottom to top.

7. The aluminum alloy bolt according to claim 6, wherein the first anti-falling member (5) comprises a connecting block (51) which is in sliding sleeve connection with the first limiting groove (24), one end of the connecting block (51) facing the first slot (21) is connected with an arc plate (52), the surface of the arc plate (52) and one end surface of the connecting block (51) extending out of the connecting column (2) are both provided with anti-slip ribs (53), and the anti-slip ribs (53) are made of elastic materials.

8. The aluminum alloy bolt according to claim 6, wherein an end surface of the second anti-falling member (6) abutting against the second extrusion block (42) is an arc surface.

9. An aluminium alloy bolt according to claim 3, wherein the first shim (11) and the second shim (31) are both made of an elastic material.