Acid absorption device for storage battery formation

Abstract

The utility model discloses an acid absorption device for storage battery formation, and relates to the technical field of acid absorption devices. The acid extraction device comprises an acid extraction header pipe communicated with a negative pressure device, a bump is arranged on one side of the acid extraction header pipe, and the end part of the bump is connected with a hose or a corrugated pipe; the protruding block is connected with a connecting cylinder, a connecting base sliding along the interior of the connecting cylinder is arranged in the connecting cylinder, the top of the connecting base is communicated with a hose or a corrugated pipe, the bottom of the connecting base is connected with an acid extraction branch pipe, and the acid extraction branch pipe penetrates through an open hole formed in the bottom side face of the connecting cylinder. According to the utility model, the bump communicated with the hose or the corrugated pipe and the connecting seat communicated with the acid extraction branch pipe are arranged outside the acid extraction header pipe, and the connecting seat is communicated with the hose or the corrugated pipe, so that when the acid extraction branch pipe is inserted into the battery unit cell during use and the acid extraction branch pipe is propped against the bottom side surface of the battery unit cell, the acid extraction header pipe is continuously controlled to move downwards; and at the moment, along with bending of the hose or contraction of the corrugated pipe, the acid extraction branch pipe propped against the bottom side surface of the battery unit cell stops moving downwards.

Description

Technical Field

[0001] The utility model belongs to the technical field of acid absorption devices, in particular to an acid absorption device used for battery formation. Background Art

[0002] During the battery production process, after the electrode group is placed in the battery slot and the battery cover is closed, the battery needs to be acidified. During acidification, excess acid needs to be injected into the battery to ensure that the active substances inside the battery fully react. After the battery formation is completed, the excess acid inside the battery needs to be sucked out.

[0003] At present, the workshop uses a lead-acid battery acid extraction device such as CN205081165U to extract residual acid. The lead-acid battery acid extraction device includes a positioning plate and a plurality of acid extraction tubes fixed on the positioning plate. A transparent acid storage container is fixed on the positioning plate. The acid storage container is connected to an acid extraction pump through the acid extraction tube. The top of the acid extraction tube passes through the side wall of the acid storage container and extends into the cavity thereof, and the bottom end extends into the lead-acid battery when extracting acid; the ends of the multiple acid extraction tubes are at the same horizontal plane, but the height of each single cell pole group inside the battery is different, resulting in that the residual acid in some single cells cannot be completely extracted, affecting the battery performance and the consistency of the battery cells. Utility Model Content

[0004] The purpose of the utility model is to provide an acid absorption device for battery formation, which solves the problems raised by the existing background technology by arranging a protrusion connected to a hose or a bellows on the outside of the acid extraction main pipe and a connecting seat connected to the acid extraction branch pipe, and the connecting seat is connected to the hose or the bellows.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model discloses an acid absorption device for battery formation, comprising an acid absorption main pipe connected to a negative pressure device; a plurality of cylindrical protrusions are provided on one side of the acid absorption main pipe, the protrusions are provided with a through hole A along the axial direction thereof, a connecting pipe head A is connected to the through hole A, and a hose or a bellows is connected to the end of the connecting pipe head A; the utility model also includes a connecting seat, a slot for inserting an acid absorption branch pipe is provided on the bottom side surface of the connecting seat, a through hole B is provided on the bottom side surface of the slot, a connecting pipe head B is connected to the through hole B on the end face of the connecting seat, and the end of the connecting pipe head B is connected to the end of the hose or the bellows; the utility model also includes a connecting cylinder connected to the protrusions, the connecting seat is located in the connecting cylinder and slides along the inner wall of the connecting cylinder; the bottom side surface of the connecting cylinder is provided with an opening for the acid absorption branch pipe to pass through.

[0007] Furthermore, a first thread structure is provided on the inner wall of the end portion of the connecting tube, and a second thread structure is provided on the end portion of the protrusion and is threadably connected to the first thread structure.

[0008] Furthermore, one end of the acid extraction main pipe is connected to a connecting pipe head C, and the connecting pipe head C is connected to the acid extraction pump through an acid extraction pipe.

[0009] Furthermore, a V-shaped notch is provided at the end of the acid extraction branch pipe.

[0010] Furthermore, a telescopic member including a spring is provided in the connecting tube, and both ends of the spring are connected to a washer, and the two washers respectively rest on the end faces of the protrusion and the connecting seat.

[0011] The utility model has the following beneficial effects:

[0012] The utility model provides a protrusion for communicating with a hose or a bellows, and a connecting seat for communicating with an acid extraction branch pipe on the outside of the acid extraction main pipe, and the connecting seat is connected with the hose or the bellows. When the acid extraction branch pipe is inserted into a battery cell and abuts against the bottom side of the battery cell during use, the acid extraction main pipe is continuously controlled to move downward. At this time, the hose bends or the bellows contracts to ensure that the acid extraction branch pipe abutting against the bottom side of the battery cell stops moving downward.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 This is a schematic structural diagram of the acid absorption device of the utility model;

[0016] Figure 2 for Figure 1 Main view;

[0017] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0018] Figure 4 This is a schematic cross-sectional view of the acid absorption device of the utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] See also Figure 1-3 As shown, the utility model is an acid absorption device for battery formation, comprising an acid extraction main pipe 1, one end of the acid extraction main pipe 1 is connected to a connecting pipe head C10, the connecting pipe head C10 is connected to an acid extraction pump through an acid extraction pipe, and six cylindrical protrusions 2 are provided on one side of the acid extraction main pipe 1 along its length direction, and any protrusion 2 is provided with a through hole A21 along its axial direction, a hose 23 is connected at the through hole A21, the end of the hose 23 is connected to a connecting seat 32, the bottom end of the connecting seat 32 is connected to an acid extraction branch pipe 4, the acid extraction branch pipe 4 is connected to the acid extraction main pipe 1 through the connecting seat 32, the hose 23 and the protrusion 2; when in use, the acid extraction pump is started to absorb acid, and at this time, the acid in the battery cell is sucked into the acid extraction main pipe 1 through the acid extraction branch pipe 4; at the same time, an acid discharge pipe equipped with an acid discharge valve is provided at the other end of the acid extraction main pipe 1.

[0022] Among them, the installation height of the acid discharge pipe is lower than the installation height of the connecting pipe head C10.

[0023] In the above, in order to control the acid extraction branch pipe 4 when inserted into the battery cell, due to the uneven bottom and side surfaces of each battery cell in the battery, when in use, the bottom ends of some acid extraction branch pipes 4 first rest against the bottom side surfaces of the battery cell, and the bottom ends of other acid extraction branch pipes 4 have a certain gap from the bottom side surfaces of the battery cell. At this time, it is necessary to continue to control the acid extraction branch pipe 4 when inserted into the battery cell. At this time, it is necessary to control the acid extraction branch pipe 4 that first rests against the bottom side surfaces of the battery cell to maintain an inconvenient height. In the present application, a connecting tube 3 is connected to the protrusion 2, and the hose 23 and the connecting seat 32 are both located inside the connecting tube 3. When in use, the connecting seat 32 slides up and down along the inner wall of the connecting tube 3, and the bottom side surface of the connecting tube 3 is provided with an opening 31 for the acid extraction branch pipe 4 to pass through.

[0024] Specifically, a connecting pipe head A22 is connected to the through hole A21, a slot 33 for inserting the acid extraction branch pipe 4 is provided on the bottom side of the connecting seat 32, a through hole B34 is provided on the bottom side of the slot 33, and a connecting pipe head B35 is connected to the end face through hole B34 of the connecting seat 32; that is, the two ends of the hose 23 are respectively connected to the connecting pipe head A22 and the connecting pipe head B35; of course, in some other technical solutions, a corrugated pipe or the like can also be used to replace the hose 23.

[0025] In order to facilitate the replacement and maintenance of the hose 23 as needed during use, a first threaded structure 30 is provided on the inner wall of the end of the connecting tube 3, and a second threaded structure 20 is provided on the end of the protrusion 2 which is threadedly connected to the first threaded structure 30. Then, when in use, first take the hose 23, and control the two ends of the hose 23 to be connected to the connecting pipe head A22 and the connecting pipe head B35 respectively, then control one end of the acid extraction branch pipe 4 to pass through the opening 31, and insert the connecting seat 32 into the connecting tube 3, and then assemble the connecting tube 3 to the protrusion 2.

[0026] A V-shaped notch 41 is provided at the end of the acid extraction branch pipe 4 to prevent the opening of the acid extraction branch pipe 4 from being blocked.

[0027] like Figure 4 A telescopic member including a spring (37) is provided in the connecting tube (3), and both ends of the spring (37) are connected to a washer (36), and the two washers (36) respectively abut against the end faces of the protrusion (2) and the connecting seat (32).

[0028] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0029] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An acid absorption device for battery formation, characterized in that: It includes an acid extraction main pipe (1) connected to the negative pressure device; A plurality of cylindrical protrusions (2) are provided on one side of the acid extraction main pipe (1), and a through hole A (21) is provided on the protrusion (2) along its axial direction. A connecting pipe head A (22) is connected to the through hole A (21), and a hose (23) or a corrugated pipe is connected to the end of the connecting pipe head A (22); The invention also includes a connecting seat (32), wherein the bottom side of the connecting seat (32) is provided with a slot (33) for inserting the acid extraction branch pipe (4), and the bottom side of the slot (33) is provided with a through hole B (34). A connecting pipe head B (35) is connected to the through hole B (34) on the end face of the connecting seat (32), and the end of the connecting pipe head B (35) is connected to the end of the hose (23) or the corrugated pipe. It also includes a connecting tube (3) connected to the protrusion (2), wherein the connecting seat (32) is located in the connecting tube (3) and slides along the inner wall of the connecting tube (3); The bottom side of the connecting cylinder (3) is provided with an opening (31) for the acid extraction branch pipe (4) to pass through.

2. The acid absorption device for battery formation according to claim 1, characterized in that: A first threaded structure (30) is provided on the inner wall of the end portion of the connecting cylinder (3), and a second threaded structure (20) threadedly connected to the first threaded structure (30) is provided on the end portion of the protrusion (2).

3. The acid absorption device for battery formation according to claim 1, characterized in that: One end of the acid extraction main pipe (1) is connected to a connecting pipe head C (10), and the connecting pipe head C (10) is connected to the acid extraction pump through an acid extraction pipe.

4. The acid absorption device for battery formation according to claim 1, characterized in that: The end of the acid extraction branch pipe (4) is provided with a V-shaped notch (41).

5. The acid absorption device for battery formation according to claim 1, characterized in that: A telescopic member including a spring (37) is provided in the connecting tube (3). Both ends of the spring (37) are connected to a washer (36). The two washers (36) respectively abut against the end surfaces of the protrusion (2) and the connecting seat (32).

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