Anti-loosening bolt for battery pack

Abstract

The utility model relates to the technical field of bolts, and discloses an anti-loosening bolt for a battery pack, which comprises a bolt body, the bolt body comprises a screw rod, one end of the screw rod is provided with a bolt head, the surface of the screw rod is sleeved with a nut in a threaded manner, and one end of the screw rod far away from the bolt head is provided with a fixing block. According to the anti-loosening bolt for the battery pack, the anti-loosening assemblies are arranged on the side, close to the fixing block, of the screw rod, rotation of the nut can be limited by arranging the anti-loosening assemblies, rotation of the nut is better avoided, and the anti-loosening effect of the anti-loosening bolt is improved. By arranging the anti-loosening assembly, the bolt body is not prone to loosening due to bumping, vibration and the like, the bolt body is installed more stably, meanwhile, by arranging the disassembling and assembling assembly, the anti-loosening assembly can be installed and disassembled, and therefore using is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, specifically to a bolt for preventing loosening of a battery pack. Background Technology

[0002] As a core component of electric vehicles and energy storage devices, battery packs are typically assembled from multiple battery modules. These components are fastened together by bolts. Bolts are common mechanical parts, usually consisting of a head and a threaded rod (a cylinder with external threads). They are used to engage with nuts to fasten two parts with through holes, thus fixing and connecting objects.

[0003] However, in actual use, due to the bumps and vibrations during vehicle operation or the vibrations generated by the energy storage device during operation, the bolts connecting the battery pack components are prone to loosening. Once the bolts loosen, the battery module connection may become loose, thereby affecting the electrical performance of the battery pack and even causing serious safety accidents such as short circuits and fires. To address this issue, we provide a bolt for preventing loosening of the battery pack. Utility Model Content

[0004] The purpose of this utility model is to provide a bolt for a battery pack that prevents loosening, thereby solving the problem that bolts used in battery packs are prone to loosening due to bumps, vibrations, etc., which can cause danger in actual use.

[0005] This utility model provides the following technical solution: a bolt for preventing loosening of a battery pack, comprising a bolt body, the bolt body comprising a screw, a bolt head being installed at one end of the screw, a nut being threaded onto the surface of the screw, a fixing block being installed at the end of the screw away from the bolt head, and disassembly and assembly components being provided on both sides of the fixing block, and an anti-loosening component for limiting and fixing the nut being provided on the side of the screw near the fixing block through two sets of disassembly and assembly components.

[0006] As a preferred embodiment of the above technical solution, the anti-loosening component includes a mounting frame and an adjustment component. The mounting frame is fitted onto the surface of the fixing block by two sets of disassembly and assembly components. Mounting plates are installed at both the upper and lower ends of the mounting frame. Each set of mounting plates has a limit rod installed at the end near the nut through the adjustment component. The side end of the nut has through holes at equal intervals, and each set of limit rods is inserted into the through holes.

[0007] The above technical solution can restrict the rotation of the nut, better prevent the nut from rotating, and make the bolt body less likely to loosen due to bumps, vibrations, etc., making the bolt body more stable. This makes the assembly of the battery pack more stable and greatly increases the safety of the device.

[0008] As a preferred embodiment of the above technical solution, both the fixing block and the mounting frame are quadrilateral in shape, and the outer diameter of the fixing block is adapted to the inner diameter of the mounting frame.

[0009] The above technical solution enables the mounting frame to rotate, and makes the mounting frame more stable and less prone to shaking.

[0010] As a preferred embodiment of the above technical solution, each set of disassembly and assembly components includes a slide groove, each set of slide grooves is opened on the side end of the fixing block, each set of slide grooves has a spring installed on the inner side, each set of slide grooves has a limit block slidably installed at the opening, and the inner end of the limit block is connected to the spring. Limit holes are opened on both sides of the inner wall of the mounting frame, and each set of limit blocks is inserted into the limit holes.

[0011] The above technical solution makes it possible to install and fix the mounting frame, or disassemble it, making it more convenient to use.

[0012] As a preferred embodiment of the above technical solution, the end of each set of limiting blocks away from the screw is inclined.

[0013] The above technical solution allows the limiting block to slide more effectively when the mounting frame comes into contact with the limiting block.

[0014] As a preferred embodiment of the above technical solution, each set of adjustment components includes a fixed rod, each set of fixed rods is installed on the mounting plate near the nut, each set of fixed rods near the nut has a movable groove, each set of limiting rods is slidably installed in the movable groove, and each set of movable grooves has a spring two that abuts against the inner end of the limiting rod.

[0015] The above technical solution allows the length of the limiting rod and the fixing rod to be adjusted according to the position of the nut on the screw surface, greatly increasing the practicality of the device.

[0016] As a preferred embodiment of the above technical solution, the outer diameter of each set of limiting rods is adapted to the inner diameter of the through hole.

[0017] The above technical solution makes the nut more stable and less prone to shaking.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention, by incorporating an anti-loosening component, restricts the rotation of the nut, thus preventing it from turning and making the bolt less prone to loosening due to bumps or vibrations. This results in a more stable installation of the bolt body, leading to more stable battery pack assembly and significantly improved safety. Furthermore, the inclusion of a disassembly and assembly component allows for the installation and removal of the anti-loosening component, making it more convenient to use and greatly increasing the practicality of the device. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a bolt for preventing loosening of a battery pack;

[0021] Figure 2 A schematic diagram of the disassembled structure of a bolt for an anti-loosening battery pack;

[0022] Figure 3 A schematic diagram of the cross-sectional structure of a bolt for preventing loosening of a battery pack;

[0023] Figure 4 This is a partial cross-sectional schematic diagram of a bolt used to prevent loosening of a battery pack.

[0024] In the diagram: 1. Bolt body; 11. Screw; 12. Bolt head; 13. Fixing block; 2. Nut; 21. Through hole; 3. Assembly / disassembly assembly; 31. Slide groove; 32. Spring 1; 33. Limiting block; 4. Anti-loosening assembly; 41. Mounting frame; 42. Limiting hole; 43. Mounting plate; 44. Limiting rod; 5. Adjustment assembly; 51. Fixing rod; 52. Movable groove; 53. Spring 2. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] like Figures 1-4As shown, this utility model provides a technical solution: a bolt for an anti-loosening battery pack, including a bolt body 1, the bolt body 1 including a screw 11, a bolt head 12 installed at one end of the screw 11, a nut 2 threaded onto the surface of the screw 11, a fixing block 13 installed at the end of the screw 11 away from the bolt head 12, and disassembly and assembly components 3 provided on both sides of the fixing block 13. An anti-loosening component 4 for limiting and fixing the nut 2 is provided on the side of the screw 11 near the fixing block 13 through two sets of disassembly and assembly components 3. The anti-loosening component 4 includes a mounting frame 41 and an adjustment component 5. The mounting frame 41 is fitted onto the surface of the fixing block 13 through two sets of disassembly and assembly components 3. Mounting plates 43 are installed at both the upper and lower ends of the mounting frame 41. A limiting rod 44 is installed on the end of each mounting plate 43 near the nut 2 through the adjustment component 5. Through holes 21 are equidistantly opened on the side end of the nut 2, and each limiting rod 44 is inserted into the through hole 21. The structure allows the mounting frame 41 to be fitted onto the surface of the fixing block 13 and fixed by two sets of disassembly and assembly components 3. At this time, the mounting frame 41 drives two sets of mounting plates 43, and the two sets of mounting plates 43 drive two sets of limiting rods 44 to be inserted into the corresponding through holes 21 through the adjustment component 5. This can limit the rotation of the nut 2 and better prevent the nut 2 from rotating, so that the bolt body 1 is not easy to loosen due to bumps, vibrations, etc., making the bolt body 1 more stable. This makes the battery pack assembly more stable and greatly increases the safety of the device. Both the fixing block 13 and the mounting frame 41 are quadrilateral in shape. The outer diameter of the fixing block 13 is adapted to the inner diameter of the mounting frame 41, so that the rotation of the mounting frame 41 can be limited, and the mounting frame 41 is more stable and less prone to shaking. The outer diameter of each set of limiting rods 44 is adapted to the inner diameter of the through hole 21, so that the nut 2 is more stably restricted and less prone to shaking.

[0027] As one implementation method in this embodiment, such as Figure 2 and Figure 4As shown, each set of disassembly and assembly components 3 includes a sliding groove 31. Each set of sliding grooves 31 is opened at the side end of the fixing block 13. A spring 32 is installed on the inner side of each set of sliding grooves 31. A limit block 33 is slidably installed at the opening of each set of sliding grooves 31, and the inner end of the limit block 33 is connected to the spring 32. The end of each set of limit blocks 33 away from the screw 11 is inclined, so that when the mounting frame 41 abuts against the limit block 33, the limit block 33 can be pushed to slide more effectively. Limit holes 42 are opened on both sides of the inner wall of the mounting frame 41. Each set of limiting blocks 33 is inserted into the limiting hole 42. This structure allows the mounting frame 41 to be aligned with the fixing block 13. At this time, the mounting frame 41 abuts against the inclined ends of the two sets of limiting blocks 33, which can push and squeeze the limiting blocks 33, so that the limiting blocks 33 are pushed into the slide groove 31 to compress the spring 32. Until the mounting frame 41 drives the two sets of limiting holes 42 to be aligned with the two sets of slide grooves 31, the two sets of limiting blocks 33 can be pushed into the limiting hole 42 by the spring force of the spring 32, thus installing and fixing the mounting frame 41. The operation is convenient.

[0028] As one implementation method in this embodiment, such as Figure 3 As shown, each set of adjustment components 5 includes a fixed rod 51. Each set of fixed rods 51 is installed on the mounting plate 43 near the nut 2. Each set of fixed rods 51 near the nut 2 has a movable groove 52. Each set of limiting rods 44 is slidably installed in the movable groove 52. The inner side of each set of movable grooves 52 is provided with a spring 2 53 that abuts against the inner end of the limiting rod 44. This structure allows the length of the limiting rod 44 and the fixed rod 51 to be adjusted according to the position of the nut 2 on the surface of the screw 11 by pushing the limiting rod 44 to slide and compress the spring 2 53 in the movable groove 52.

[0029] Working principle: In use, after screw 11, bolt head 12, and nut 2 are installed and tightened, the mounting frame 41 can be aligned with the fixing block 13, so that the mounting frame 41 fits onto the surface of the fixing block 13. At this time, the mounting frame 41 abuts against the inclined ends of the two sets of limiting blocks 33, which can push and compress the limiting blocks 33, causing the limiting blocks 33 to be pushed into the slide groove 31 to compress the spring 32, until the mounting frame 41 drives the two sets of limiting holes 42 to align with the two sets of slide grooves 31. In this way, the two sets of limiting blocks 33 can pass through the spring 32. The spring force pushes the bolt into the limiting hole 42, fixing the mounting frame 41. At the same time, the mounting frame 41 also drives the two sets of mounting plates 43, which in turn drive the two sets of fixing rods 51. The two sets of fixing rods 51 drive the two sets of limiting rods 44 to be inserted into the corresponding through holes 21. This restricts the rotation of the nut 2, better preventing the nut 2 from rotating. This makes the bolt body 1 less likely to loosen due to bumps, vibrations, etc., making the bolt body 1 more securely installed. This also makes the battery pack assembly more stable.

[0030] Meanwhile, by pushing the limiting rod 44 to slide and compress the second spring 53 in the movable groove 52, the length of the limiting rod 44 and the fixed rod 51 can be adjusted according to the position of the nut 2 on the surface of the screw 11.

[0031] Alternatively, to remove nut 2, simply press both sets of limit blocks 33 simultaneously, pushing the limit blocks 33 from the limit hole 42 into the slide groove 31 to compress the spring 32. This will unlock the mounting frame 41, allowing it to be removed from the fixing block 13. The mounting frame 41 will then move the mounting plate 43, which in turn moves the fixing rod 51. The fixing rod 51 will then move the limit rod 44 out of the through hole 21. This will allow the anti-loosening component 4 and the adjusting component 5 to be removed. Then, tools can be used to unscrew nut 2 from screw 11, completing the disassembly.

[0032] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A bolt for preventing loosening of a battery pack, comprising a bolt body (1), the bolt body (1) comprising a screw (11), one end of the screw (11) being fitted with a bolt head (12), and a nut (2) being threaded onto the surface of the screw (11), characterized in that: A fixing block (13) is installed at the end of the screw (11) away from the bolt head (12). A disassembly assembly (3) is provided on both sides of the fixing block (13). An anti-loosening assembly (4) for limiting and fixing the nut (2) is provided on the side of the screw (11) close to the fixing block (13) through two sets of disassembly assemblies (3).

2. The anti-loosening bolt for a battery pack according to claim 1, characterized by: The anti-loosening component (4) includes a mounting frame (41) and an adjustment component (5). The mounting frame (41) is fitted onto the surface of the fixing block (13) by two sets of disassembly and assembly components (3). Mounting plates (43) are installed at both the upper and lower ends of the mounting frame (41). Each set of mounting plates (43) has a limit rod (44) installed at the end near the nut (2) by the adjustment component (5). The nut (2) has through holes (21) equidistantly through its side end. Each set of limit rods (44) is inserted into the through hole (21).

3. The anti-loosening bolt for a battery pack according to claim 2, characterized by: Both the fixing block (13) and the mounting frame (41) are quadrilateral in shape, and the outer diameter of the fixing block (13) is adapted to the inner diameter of the mounting frame (41).

4. The anti-loosening bolt for a battery pack according to claim 2, characterized by: Each set of disassembly and assembly components (3) includes a slide groove (31). Each set of slide grooves (31) is opened on the side end of the fixing block (13). A spring (32) is installed on the inner side of each set of slide grooves (31). A limit block (33) is slidably installed at the opening of each set of slide grooves (31), and the inner end of the limit block (33) is connected to the spring (32). Limit holes (42) are opened on both sides of the inner wall of the mounting frame (41), and each set of limit blocks (33) is inserted into the limit hole (42).

5. The anti-loosening bolt for a battery pack according to claim 4, characterized by: The end of each limiting block (33) away from the screw (11) is inclined.

6. The anti-loosening bolt for a battery pack according to claim 2, characterized in that: Each set of adjustment components (5) includes a fixing rod (51). Each set of fixing rods (51) is installed on the mounting plate (43) near the nut (2). Each set of fixing rods (51) near the nut (2) has a movable groove (52). Each set of limiting rods (44) is slidably installed in the movable groove (52). Each set of movable grooves (52) has a spring (53) on its inner side that abuts against the inner end of the limiting rod (44).

7. The anti-loosening bolt for a battery pack according to claim 6, characterized by: The outer diameter of each set of limiting rods (44) is adapted to the inner diameter of the through hole (21).

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