Hanging point nut for battery box body

Abstract

The utility model relates to the technical field of power batteries, and discloses a hanging point nut for a battery box body, which comprises a nut body, the nut body comprises a rectangular block, a baffle is arranged on the lower surface of the rectangular block, a column body is arranged on the lower surface of the baffle, and the baffle is provided with an anti-loosening assembly through a connecting assembly. The nut body and the gasket are matched to form a whole through the arranged connecting assembly, at the moment, the nut body cannot rotate relative to the gasket due to the vibration problem, and the good anti-loosening effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, and particularly relates to a lifting point nut for a battery box body. Background Technique

[0002] With the gradual increase of the battery power, the weight of the battery box body is also constantly increasing. The battery box body is mainly connected to the vehicle chassis through bolts around the box body, which makes the middle part of the battery box body affected by gravity greatly. This not only affects the structural strength of the battery box body, but also causes the distance between the battery box body and the vehicle chassis to increase continuously, thus endangering the overall safety of the battery system. Therefore, a lifting point structure needs to be set on the battery box body to meet the structural safety of the battery box body and the connection between the box body and the vehicle chassis.

[0003] The utility model patent application document with the publication number of "CN219677439U" discloses an intermediate lifting point structure of a battery box body, which mainly consists of a battery box body and an intermediate lifting point structure. When installing this technical solution, the intermediate sleeve is first placed inside the cross beam of the battery box body. When the outer edge of the second limit is above the cross beam, the upper shell is placed above the outer edge of the first limit through the hole of the upper shell, and then the upper shell and the outer edge of the first limit are fixedly connected by a threaded connection through a lifting point nut, improving the sealing performance between the battery box body and the lifting point structure.

[0004] The above-mentioned intermediate lifting point structure of the battery box body disclosed in the document has the following defects: In this technical solution, the upper shell and the outer edge of the first limit are fixedly connected by a threaded connection through a lifting point nut. However, during the use process, due to vibration and impact loads, the lifting point nut spins and loosens, or due to material relaxation, the axial force of the lifting point nut decreases, resulting in the failure of the threaded connection. In the prior art, a double-stack self-locking washer is usually used to prevent the loosening of the lifting point nut. However, the contact surfaces of the double-stack self-locking washer and the lifting point nut are both hard metals. Even though the upper surface of the double-stack self-locking washer has anti-slip teeth, there will still be looseness with the lifting point nut during high-frequency vibration.

[0005] It can be seen from this that the existing lifting point nut does not have a good anti-loosening effect, and it is necessary to improve the existing deficiencies and provide a lifting point nut for a battery box body. Content of the Utility Model

[0006] The purpose of the utility model is to provide a lifting point nut for a battery box body to solve the problems raised in the above background technique.

[0007] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0008] The utility model relates to a lifting point nut for a battery box body, which comprises a nut body. The nut body includes a rectangular block, a baffle is arranged on the lower surface of the rectangular block, a column body is arranged on the lower surface of the baffle, and a loosening prevention component is installed on the baffle through a connecting component.

[0009] Further, a first through hole is formed in the upper surface of the rectangular block. One end of the first through hole sequentially penetrates through the rectangular block, the baffle and the column body and extends downward. An external thread is arranged on the outer surface of the column body.

[0010] Further, the loosening prevention component includes a washer. A connecting block is arranged on the upper surface of the washer. A groove is formed at one end of the connecting block. Anti-slip teeth are arranged on the lower surface of the washer.

[0011] Further, the connecting component includes a limiting block. A connecting plate is arranged at one end of the limiting block. A connecting rod is arranged at the other end of the connecting plate. A pulling block is arranged at the other end of the connecting rod.

[0012] Further, a cavity is formed in the baffle. A second through hole is formed in the outer surface of the baffle. One end of the second through hole extends into the cavity. An installation groove is formed in the lower surface of the baffle. A channel is formed between the cavity and the installation groove.

[0013] Further, a connecting plate is slidably connected in the cavity. A connecting block is installed in the installation groove. A limiting block is slidably connected in the channel. One end of the limiting block is fitted and installed in the groove. A connecting rod is slidably connected in the second through hole. A spring is sleeved on the outer surface of the connecting rod. One end of the spring is installed on the inner surface of the cavity, and the other end of the spring is installed on the outer surface of the connecting plate.

[0014] The utility model has the following beneficial effects:

[0015] (1) By means of the arranged connecting component, the nut body and the washer are combined into a whole. At this time, the nut body cannot rotate relative to the washer due to vibration problems, achieving a good loosening prevention effect.

[0016] Of course, it is not necessary for any product implementing the utility model to simultaneously achieve all the above-mentioned advantages. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 This is the exploded view of the overall structure of the present utility model;

[0019] Figure 2 This is the schematic structural view of the suspension point nut of the present utility model when in use;

[0020] Figure 3 This is the sectional view of the overall structure of the present utility model;

[0021] Figure 4 This is the sectional view of the nut body structure of the present utility model;

[0022] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0023] In the figure: 1, nut body; 101, rectangular block; 102, baffle; 103, column; 104, first through hole; 105, external thread; 106, cavity; 107, second through hole; 108, installation groove; 109, channel; 2, connection assembly; 201, limit block; 202, connecting plate; 203, connecting rod; 204, pulling block; 205, spring; 3, anti-loosening assembly; 301, washer; 302, connecting block; 303, groove; 304, anti-slip teeth. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1 - Figure 4 As shown, the present utility model is a suspension point nut for a battery box body, including a nut body 1. The nut body 1 includes a rectangular block 101. A baffle 102 is provided on the lower surface of the rectangular block 101. A column 103 is provided on the lower surface of the baffle 102. The baffle 102 is provided with an anti-loosening assembly 3 through a connection assembly 2;

[0026] By providing the connection assembly 2, the nut body 1 and the anti-loosening assembly 3 are combined into a whole. At this time, the nut body 1 cannot rotate relative to the anti-loosening assembly 3 due to vibration problems, achieving a better anti-loosening effect;

[0027] A first through hole 104 is opened on the upper surface of the rectangular block 101. One end of the first through hole 104 sequentially penetrates through the rectangular block 101, the baffle 102 and the column 103 and extends downward. An external thread 105 is provided on the outer surface of the column 103;

[0028] The anti-loosening component 3 includes a washer 301. A connecting block 302 is provided on the upper surface of the washer 301. A groove 303 is formed at one end of the connecting block 302. Anti-slip teeth 304 are provided on the lower surface of the washer 301.

[0029] The washer 301 is an elastic conical washer. As the nut body 1 is tightened, the washer 301 deforms. The anti-slip teeth 304 contact and press against the surface to be locked, and can give a pre-tightening force between the housing and the nut body 1, further improving the anti-loosening effect.

[0030] The connecting component 2 includes a limiting block 201. A connecting plate 202 is provided at one end of the limiting block 201. A connecting rod 203 is provided at the other end of the connecting plate 202. A pulling block 204 is provided at the other end of the connecting rod 203.

[0031] A cavity 106 is formed inside the baffle 102. A second through hole 107 is formed on the outer surface of the baffle 102. One end of the second through hole 107 extends into the cavity 106. An installation groove 108 is formed on the lower surface of the baffle 102. A channel 109 is formed between the cavity 106 and the installation groove 108.

[0032] The connecting plate 202 is slidably connected inside the cavity 106. The connecting block 302 is installed inside the installation groove 108. The limiting block 201 is slidably connected inside the channel 109. One end of the limiting block 201 is fitted and installed inside the groove 303. The connecting rod 203 is slidably connected inside the second through hole 107. A spring 205 is sleeved on the outer surface of the connecting rod 203. One end of the spring 205 is installed on the inner surface of the cavity 106, and the other end of the spring 205 is installed on the outer surface of the connecting plate 202.

[0033] During use, first pull the pulling block 204 outwards, so that the connecting rod 203 slides outwards inside the second through hole 107. At the same time, the connecting rod 203 drives the connecting plate 202 to slide inside the cavity 106, so that the limiting block 201 gradually disengages from the inside of the installation groove 108. When the limiting block 201 completely disengages from the installation groove 108, the connecting block 302 is fitted and installed inside the installation groove 108. After the connecting block 302 is installed, cancel the force on the pulling block 204, so that the spring 205 restores its elasticity and pushes the connecting plate 202 to reset, so that the limiting block 201 is fitted and installed inside the groove 303, completing the fixed installation of the nut body 1 and the anti-loosening component 3.

[0034] When the washer 301 is damaged and needs to be disassembled, by pulling the pulling block 204 outward, the connecting rod 203 slides outward in the second through hole 107. At the same time, the connecting rod 203 drives the connecting plate 202 to slide in the cavity 106, so that the limiting block 201 gradually disengages from the inside of the groove 303. When the limiting block 201 completely disengages from the groove 303, the fixing installation between the nut body 1 and the washer 301 is cancelled. At this time, the washer 301 can be pulled downward, so that the connecting block 302 disengages from the inside of the installation groove 108, completing the disassembly of the nut body 1 and the anti-loosening component 3;

[0035] Through the provided connecting component 2, the nut body 1 and the washer 301 are combined into a whole. At this time, the nut body 1 cannot rotate relative to the washer 301 due to vibration problems, achieving a better anti-loosening effect.

[0036] The above-disclosed preferred embodiments of the present invention are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A suspension point nut for a battery box, comprising a nut body (1), characterized in that: The nut body (1) comprises a rectangular block (101), a baffle (102) is provided on the lower surface of the rectangular block (101), and a column (103) is provided on the lower surface of the baffle (102); The baffle (102) is mounted with an anti-loosening component (3) via a connecting component (2).

2. The battery case suspension nut according to claim 1, characterized in that: A first through hole (104) is provided on the upper surface of the rectangular block (101), one end of the first through hole (104) passes through the rectangular block (101), the baffle (102) and the column (103) in sequence and extends downwards, and an external thread (105) is provided on the outer surface of the column (103).

3. The battery case suspension nut according to claim 1, characterized in that: The anti-loosening component (3) comprises a washer (301), the upper surface of the washer (301) is provided with a connecting block (302), one end of the connecting block (302) is provided with a groove (303), and the lower surface of the washer (301) is provided with anti-slip teeth (304).

4. The battery case suspension nut according to claim 1, characterized in that: The connection assembly (2) comprises a limit block (201), one end of the limit block (201) is provided with a connection plate (202), the other end of the connection plate (202) is provided with a connection rod (203), and the other end of the connection rod (203) is provided with a pull block (204).

5. The battery case suspension nut according to claim 1, characterized in that: A cavity (106) is provided inside the baffle plate (102), a second through hole (107) is provided on the outer surface of the baffle plate (102), one end of the second through hole (107) extends into the cavity (106), a mounting groove (108) is provided on the lower surface of the baffle plate (102), and a channel (109) is provided between the cavity (106) and the mounting groove (108).

6. The battery case suspension nut according to claim 5, characterized in that: The cavity (106) is slidably connected to a connecting plate (202), the mounting groove (108) is installed with a connecting block (302), the channel (109) is slidably connected to a limiting block (201), one end of the limiting block (201) is mounted in the groove (303), the second through hole (107) is slidably connected to a connecting rod (203), the outer surface of the connecting rod (203) is sleeved with a spring (205), one end of the spring (205) is mounted on the inner surface of the cavity (106), and the other end of the spring (205) is mounted on the outer surface of the connecting plate (202).

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