Removable liquid injection hole rubber plug and tool

Abstract

The utility model discloses a removable liquid injection hole rubber plug and a tool, and the removable liquid injection hole rubber plug comprises a first rubber body and a second rubber body, the second rubber body is connected with the hollow part of the first rubber body, a hooking rod is arranged at the top of the second rubber body, and the second rubber body is used for hooking the hooking rod through a tool to take out the rubber plug from the lithium battery cover plate; according to the utility model, the removable rubber plug is used, and a battery which is not filled with helium and is inserted into the sealing rubber plug is directly taken out for supplementing helium, so that the safety of the battery can be greatly improved, the thickness consistency of the battery is ensured, and the operation is convenient and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of square battery manufacturing, in particular to a removable liquid injection hole rubber plug and a tool. Background Art

[0002] At present, square aluminum shell batteries may not be filled with helium due to misoperation during the production process. If they are not reworked, there may be problems such as uncontrollable battery safety risks and poor thickness consistency after they flow out, affecting the battery module pack; and after the un-helium-filled battery cell is inserted into the sealing plug, the plug cannot be removed and cannot be reworked to replenish helium. Utility Model Content

[0003] The main purpose of the utility model is to provide a removable liquid injection hole rubber plug and a tool, aiming to solve the existing technical problems.

[0004] To achieve the above-mentioned purpose, the utility model provides a removable liquid injection hole rubber plug and a tool, including:

[0005] The first colloid has a hollowed-out middle portion;

[0006] The second colloid is connected to the hollow part of the first colloid, and a hook rod is provided on the top of the second colloid for taking the rubber plug out of the lithium battery cover by hooking the hook rod with a tool.

[0007] Furthermore, a first boss is provided at a hollowed-out portion of the first colloid, a second boss is provided at the bottom of the second colloid, and the second colloid is connected to the first boss on the first colloid through the second boss.

[0008] Furthermore, the second colloid also includes a column connected to the second boss, a third boss is provided at the end of the column, and the hooking rod is provided on the third boss.

[0009] Furthermore, a groove is formed on the third boss, and the hooking rod is arranged in the groove.

[0010] Furthermore, the first colloid comprises a sealing seat, the sealing seat is connected to a sealing joint, a side wall of the sealing joint is provided with three vertical sections, and a diameter of the sealing joint is smaller than a diameter of the sealing seat.

[0011] A tool for removing the removable liquid injection hole plug as described above, characterized in that it comprises a hook rod, and the hook rod is installed on the operating rod.

[0012] The beneficial effects of the utility model are embodied in:

[0013] In the utility model, a removable rubber plug is used. For batteries that are not filled with helium but have the sealing rubber plug inserted, the batteries can be directly taken out for helium filling, which can greatly improve the safety of such batteries and ensure the thickness consistency of the batteries, and the operation is convenient and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the first colloid structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the second colloid structure of the utility model;

[0017] Figure 4 For this utility model Figure 3 Schematic diagram of the structure front view;

[0018] Figure 5 The utility model is a schematic diagram of the structure of a tool for removing a rubber plug.

[0019] Description of reference numerals:

[0020] 100, first colloid; 101, first boss; 102, sealing seat; 103, vertical section; 104, sealing joint; 200, second colloid; 201, second boss; 202, hooking rod; 203, third boss; 204, groove; 205, column; 300, operating rod; 301, hook rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 and 3 The utility model provides a removable liquid injection hole rubber plug, comprising:

[0023] The first colloid 100 has a hollowed-out middle portion;

[0024] The second colloid 200 is connected to the hollowed-out portion of the first colloid 100 , and a hooking rod 202 is provided on the top of the second colloid 200 , which is used to hook the hooking rod 202 with a tool to take the rubber plug out of the lithium battery cover.

[0025] This embodiment uses a removable rubber plug. For batteries that are not filled with helium but have a sealing rubber plug inserted, the plug can be directly taken out for helium filling, which can greatly improve the safety of such batteries and ensure the thickness consistency of the batteries. The operation is convenient and reliable.

[0026] In one embodiment, see Figure 2 and Figure 3 A first boss 101 is provided at the hollow portion of the first colloid 100 , a second boss 201 is provided at the bottom of the second colloid 200 , and the second colloid 200 is connected with the first boss 101 on the first colloid 100 through the second boss 201 .

[0027] In this embodiment, the first boss 101 and the second boss 201 are arranged to ensure the connection between the first colloid 100 and the second colloid 200, so that the two are not separated when the rubber plug is taken out by a tool and can be taken out at the same time.

[0028] The hollowed-out portion of the first colloid 100 has space for the second colloid 200 to move, so that when the rubber plug is removed later, the second colloid 200 can be pulled outward for a distance, making it convenient for the staff to connect the tool with the hook rod 202 in a limited space.

[0029] In one embodiment, see Figure 4 The second colloid 200 also includes a column 205 connected to the second boss 201 , a third boss 203 is disposed at the end of the column 205 , and the hooking rod 202 is disposed on the third boss 203 .

[0030] This embodiment is configured so that when using the tool, it can be easily operated on the outside of the lithium battery cover, that is, the tool can be easily connected to the hook rod 202, making it convenient for the staff to operate.

[0031] In one embodiment, see Figure 3 A groove 204 is formed on the third boss 203 , and the hooking rod 202 is disposed in the groove 204 .

[0032] The present embodiment is configured in this way, so that the hook rod 202 can be placed inside the rubber plug, reducing the overall volume of the rubber plug and avoiding the problem of causing obstruction to other structures. At the same time, this configuration can also ensure that the overall structure of the rubber plug is compact, small and easy to store.

[0033] In one embodiment, see Figure 2 The first colloid 100 includes a sealing seat 102 , which is connected to a sealing joint 104 . The side wall of the sealing joint 104 is provided with three vertical sections 103 , and the diameter of the sealing joint 104 is smaller than the diameter of the sealing seat 102 .

[0034] This arrangement of the present embodiment can ensure that the rubber plug is tightly connected to the liquid injection hole on the lithium battery cover plate, and has good sealing performance.

[0035] A tool for removing the removable liquid injection hole plug as described above, see Figure 5 , including a hook rod 301, which is installed on the operating rod 300.

[0036] When in use, the rubber plug can be taken out by connecting the hook rod 301 with the hooking rod 202 on the rubber plug.

[0037] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that satisfy both A and B. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A removable liquid injection hole plug, characterized in that ,include: The first colloid (100) is hollowed out in the middle; The second colloid (200) is connected to the hollowed-out portion of the first colloid (100), and a hooking rod (202) is provided on the top of the second colloid (200) for taking the rubber plug out of the lithium battery cover by hooking the hooking rod (202) with a tool.

2. A removable liquid injection hole rubber plug according to claim 1, characterized in that: A first boss (101) is provided at a hollowed-out portion on the first colloid (100), a second boss (201) is provided at the bottom of the second colloid (200), and the second colloid (200) is connected to the first boss (101) on the first colloid (100) through the second boss (201).

3. The removable liquid injection hole rubber plug according to claim 1, characterized in that: The second colloid (200) further comprises a column (205) connected to the second boss (201), a third boss (203) is provided at the end of the column (205), and the hooking rod (202) is provided on the third boss (203).

4. A removable liquid injection hole rubber plug according to claim 3, characterized in that: The third boss (203) is provided with a groove (204), and the hooking rod (202) is arranged in the groove (204).

5. A removable liquid injection hole rubber plug according to claim 4, characterized in that: The first colloid (100) comprises a sealing seat (102), the sealing seat (102) being connected to a sealing joint (104), the side wall of the sealing joint (104) being provided with three vertical sections (103), and the diameter of the sealing joint (104) being smaller than the diameter of the sealing seat (102).

6. A tool for removing the removable liquid injection hole plug according to any one of claims 1 to 5, characterized in that: It comprises a hook rod (301), wherein the hook rod (301) is installed on the operating rod (300).

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