Acid extraction pipe bottom sealing device with holes formed in side face

Abstract

The utility model discloses an acid extraction pipe bottom sealing device with holes formed in the side face. The acid extraction pipe bottom sealing device comprises a core pulling guide column, a welding support and an outer welding module. According to the acid extraction pipe bottom sealing device with the holes formed in the side face, the core pulling guide column extends into the acid extraction pipe to be subjected to bottom sealing and then is placed on the welding support, the welding height position is limited through cooperation of the welding outer module, welding can be simply carried out along the top face of the welding outer module in the welding process, and the whole bottom sealing process is simple and convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of lead-acid battery production, and particularly relates to a bottom sealing device for an acid extraction pipe with a side opening. Background Art

[0002] The structure of a lead-acid battery includes a battery tank and a battery cover that cover each other, as well as a pole group and electrolyte in the battery tank. The top surface of the battery cover has an acid injection hole for injecting electrolyte into the battery tank. On the other hand, during the formation process of the lead-acid battery, acid needs to be extracted through the acid injection hole to extract excess electrolyte.

[0003] In the prior art, the bottom surface of the acid extraction tube used for acid extraction is provided with an opening, and the bottom surface is provided with an oblique opening to prevent the acid extraction from being affected after the acid extraction is sealed in contact with the top surface of the pole group. In addition, in order to prevent the tip formed by the oblique opening at the bottom of the acid extraction tube from damaging the relevant structure on the top surface of the pole group, a protective sheet is also placed on the top surface of the pole group.

[0004] In the prior art, holes are also opened on the side of the acid extraction tube to avoid damaging the pole group during the acid extraction process, while also ensuring the consistency of the length of the acid extraction tube and the consistency of the residual acid after acid extraction.

[0005] For example, the utility model with authorization announcement number CN214754084U discloses a device for extracting acid from batteries, including an acid extraction main body, a negative pressure suction pipe is arranged inside the acid extraction main body, a quick-connect pipe is fixedly connected to the end of the negative pressure suction pipe, the quick-connect pipe is connected to an air compressor, a plurality of acid extraction fixed blocks are fixed on the circumferential surface of the negative pressure suction pipe, the acid extraction fixed blocks are connected to the negative pressure suction pipe, a sealing rubber plug is plugged on the acid extraction fixed block, an acid extraction tube is arranged inside the sealing rubber plug, a plurality of side holes are arranged at the end of the acid extraction tube, and when in use, the side holes are arranged longitudinally along the partition of the battery to be extracted with acid. Utility Model Content

[0006] The present application provides a bottom sealing device for an acid extraction tube with a hole on the side.

[0007] A bottom sealing device for an acid extraction tube with a side opening, the acid extraction tube is used to extend from an acid injection hole on the top surface of a lead-acid battery into the interior to extract acid, one end face of the acid extraction tube extending into the interior of the lead-acid battery is sealed and a side hole for acid absorption is provided on the side, the bottom sealing device for an acid extraction tube with a side opening is used to seal one end face of the acid extraction tube with the side hole for acid absorption already opened on the side,

[0008] The bottom sealing device of the acid extraction pipe with side openings comprises:

[0009] A core-pulling guide column, comprising a support block and a guide column located on the support block, wherein the diameter of the guide column is slightly smaller than the inner diameter of the acid-pulling tube. When in use, the guide column extends into the acid-pulling tube, and when one end of the acid-pulling tube abuts against the support block, the end of the guide column extends beyond the acid-pulling side hole but does not extend out of the end face of the acid-pulling tube;

[0010] The welding bracket comprises a placement base and a clamping seat arranged on the placement base, wherein the clamping seat has a clamping slot with a side opening and extending to the top surface; when in use, the support block in the core-pulling guide column matched with the acid-pulling tube to be sealed is placed on the placement base, and the acid-pulling tube is clamped into the clamping slot and the top end extends out of the clamping slot;

[0011] The welding outer module has a through hole for the portion of the acid extraction tube that passes through the slot. When matched, the welding outer module is placed on the top surface of the welding bracket. The top surface height of the welding outer module is higher than the end surface of the guide column but lower than the end surface of the acid extraction tube to be sealed.

[0012] Preferably, before the end face of the acid extraction tube is sealed at one end, the acid extraction side hole is 1-3 mm away from the end face of the acid extraction tube;

[0013] The end surface of the guide column exceeds the acid-absorbing side hole by 0.1 to 0.3 mm.

[0014] More preferably, when mated, the top surface of the welded outer module is 0.3 to 1 mm higher than the end surface of the guide pillar.

[0015] Preferably, the clamping seat has an avoidance groove for facilitating the removal and placement of the support block.

[0016] Preferably, two acid-absorbing side holes which are arranged opposite to each other are provided on the side of the acid-absorbing tube.

[0017] Preferably, it also includes an electric soldering iron, the welding end face of the electric soldering iron is designed as a flat head, and when in use, one end of the acid extraction tube to be sealed is hot-melted by the electric soldering iron and then sealed.

[0018] The utility model discloses a bottom sealing device for an acid extraction tube with a side opening, which is inserted into the acid extraction tube to be sealed through a core pulling guide pin, and then is put into a welding bracket, and the welding height position is limited by the cooperation of a welding outer module, so that when welding, it is only necessary to simply weld along the top surface of the welding outer module, and the whole bottom sealing process is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The bottom-sealed acid extraction tube (left), the core-extraction guide pin (middle), and the matching structure of the two (right).

[0020] Figure 2 It is the main view of the sectional structure of the matching structure of the core pulling guide pin, welding bracket and welding outer module.

[0021] Figure 3 It is a side view of the cross-sectional structure of the matching structure of the core-pulling guide pin, welding bracket and welding outer module.

[0022] Figure 4 It is a top view of the cross-sectional structure of the matching structure of the core-pulling guide column, welding bracket and welding outer module.

[0023] Figure 5 This is a schematic diagram of the structure when using a soldering iron for soldering.

[0024] Figure 6 This is a state diagram for the acid extraction tube.

[0025] Figure 7 This is a schematic diagram of the structure in which one end of the acid extraction tube extends into the lead-acid battery.

[0026] Reference numerals:

[0027] Acid extraction tube 1, acid extraction side hole 11,

[0028] Core pulling guide pin 2, support block 21, guide pin 22,

[0029] Welding bracket 3, placing base 31, clamping seat 32, clamping slot 33, avoidance slot 34,

[0030] Weld the outer module 4, through hole 41,

[0031] Electric soldering iron 5,

[0032] Acid extraction tool 6,

[0033] Lead-acid battery 7, battery cover 71, electrode group 72, separator 73, acid injection hole 74. DETAILED DESCRIPTION

[0034] like Figures 1 to 7 As shown, a bottom sealing device for an acid extraction tube with a side opening is used for hot-melt bottom sealing of the acid extraction tube 1.

[0035] In the present application, the acid extraction tube 1 is used to extend from the acid injection hole 74 on the top surface of the lead-acid battery 7 into the interior to extract acid, and the end face of the acid extraction tube 1 extending into the interior of the lead-acid battery 7 is sealed, and the side is provided with an acid absorption side hole 11. In a preferred embodiment, the side of the acid extraction tube 1 is provided with two acid absorption side holes 11 arranged opposite to each other. The bottom sealing device of the acid extraction tube with side openings is used to seal one end face of the acid extraction tube 1 with the acid absorption side holes 11 already opened on the side. The acid extraction tube 1 can be made of plastic material, and the bottom sealing is completed after hot melting.

[0036] The bottom sealing device of the acid extraction tube with a side opening in the present application comprises a core-extracting guide column 2, a welding bracket 3 and a welding outer module 4.

[0037] like Figure 1 As shown, the core-pulling guide column 2 includes a support block 21 and a guide column 22 located on the support block 21. The diameter of the guide column 22 is slightly smaller than the inner diameter of the acid extraction tube 1. When in use, the guide column 22 extends into the acid extraction tube 1, and when one end of the acid extraction tube 1 is against the support block 21, the end of the guide column 22 extends beyond the acid extraction side hole 11 but does not extend out of the end face of the acid extraction tube 1.

[0038] like Figures 2 to 4 As shown, the welding bracket 3 includes a placement base 31 and a clamping seat 32 arranged on the placement base 31. The clamping seat 32 has a clamping groove 33 with a side opening and extending to the top surface. When in use, the support block 21 in the core-pulling guide column 2 that cooperates with the acid extraction tube to be sealed is placed on the placement base 31, and the acid extraction tube 1 is clamped into the clamping groove 33 and the top end extends out of the clamping groove 33. The clamping seat 32 has an avoidance groove 34 for convenient placement and removal of the support block 21.

[0039] The welding outer module 4 has a through hole 41 for the portion of the acid extraction tube 1 that passes through the slot 33. When matched, the welding outer module 4 is placed on the top surface of the welding bracket 3. The top surface height of the welding outer module 4 is higher than the end surface of the guide column 22 but lower than the end surface of the acid extraction tube 1 to be sealed.

[0040] Before the end face of the acid extraction tube 1 is sealed, the acid absorption side hole 11 is 1-3 mm away from the end face of the acid extraction tube 1. The end face of the guide pillar 22 exceeds the acid absorption side hole 11 by 0.1-0.3 mm, that is, after the core-pulling guide pillar 2 is plugged into the acid extraction tube 1, the end face of the guide pillar 22 extends through the acid absorption side hole 11, but does not extend out of the acid extraction tube 1, and there is still a certain distance from the end face of the acid extraction tube, and this distance is used for bottom sealing.

[0041] When fitted, the top surface of the welded outer module 4 is 0.3 to 1 mm higher than the end surface of the guide pillar 22 .

[0042] In a preferred embodiment, the bottom sealing device of the acid extraction tube with a side opening of the present application also includes an electric soldering iron 5, and the welding end face of the electric soldering iron 5 is designed as a flat head. When in use, one end of the acid extraction tube 1 to be sealed is hot-melted by the electric soldering iron 5 to seal the bottom.

[0043] When the bottom sealing device of the acid extraction tube with a side opening of the present application is used, the core-pulling guide column 2 is inserted into the acid extraction tube 1 to be sealed, and then placed on the welding bracket 3, and the welding height position is limited by the cooperation of the welding outer module 4, so that when welding, it is only necessary to simply weld along the top surface of the welding outer module 4, and the top of the acid extraction tube 1 protruding from the welding outer module 4 is melted under the heating of the electric soldering iron 5, and the electric soldering iron 5 melts around the upper end of the acid extraction tube 1 in a clockwise circle until the bottom sealing of the acid extraction tube 1 is completed, and the core-pulling guide column 2 can be pulled out after cooling for 3-5s, and the acid extraction tube 1 is taken out. The top of the acid extraction tube 1 is smoothed by the welding end surface of the flat head design of the electric soldering iron 5, and is flush with the welding outer module 4.

[0044] like Figures 6-7 As shown, the lead-acid battery 7 includes a battery cover 71, and the battery cover 71 has an acid injection hole 74. A pole group 72 is arranged inside the lead-acid battery 7, and the pole group 72 includes a plurality of positive and negative alternately stacked positive plates and negative plates, and the positive plates and negative plates are separated by a partition 73. The prepared acid extraction tube 1 is used in conjunction with the acid extraction tool 6, and the acid extraction tube 1 extends from the acid injection hole 74 on the top surface of the lead-acid battery 7 to the inside to extract acid, and the end of the acid extraction tube 1 abuts against the partition 73 on the top surface of the pole group 72, and the acid absorption side hole 11 on the side is used for acid extraction.

Claims

1. A bottom sealing device for an acid extraction tube with a side opening, wherein the acid extraction tube is used to extend from an acid injection hole on the top surface of a lead-acid battery into the interior for acid extraction, characterized in that: The end face of the acid extraction tube extending into the lead-acid battery is sealed and a side hole for acid absorption is provided on the side. The bottom sealing device for the acid extraction tube with a side hole is used to seal the end face of the acid extraction tube with the side hole for acid absorption. The bottom sealing device of the acid extraction pipe with side openings comprises: A core-pulling guide column, comprising a support block and a guide column located on the support block, wherein the diameter of the guide column is slightly smaller than the inner diameter of the acid-pulling tube. When in use, the guide column extends into the acid-pulling tube, and when one end of the acid-pulling tube abuts against the support block, the end of the guide column extends beyond the acid-pulling side hole but does not extend out of the end face of the acid-pulling tube; The welding bracket comprises a placement base and a clamping seat arranged on the placement base, wherein the clamping seat has a clamping slot with a side opening and extending to the top surface; when in use, the support block in the core-pulling guide column matched with the acid-pulling tube to be sealed is placed on the placement base, and the acid-pulling tube is clamped into the clamping slot and the top end extends out of the clamping slot; The welding outer module has a through hole for the portion of the acid extraction tube that passes through the slot. When matched, the welding outer module is placed on the top surface of the welding bracket. The top surface height of the welding outer module is higher than the end surface of the guide column but lower than the end surface of the acid extraction tube to be sealed.

2. The bottom sealing device of the acid extraction tube with a side opening according to claim 1, characterized in that: Before the end face of the acid extraction tube is sealed at one end, the acid extraction side hole is 1-3 mm away from the end face of the acid extraction tube; The end surface of the guide column exceeds the acid-absorbing side hole by 0.1 to 0.3 mm.

3. The bottom sealing device of the acid extraction tube with a side opening according to claim 2, characterized in that: When matched, the top surface of the welded outer module is 0.3 to 1 mm higher than the end surface of the guide pillar.

4. The bottom sealing device of the acid extraction tube with a side opening according to claim 1, characterized in that: The clamping seat has an avoidance groove for facilitating the taking and placing of the supporting block.

5. The bottom sealing device of the acid extraction tube with a side opening according to claim 1, characterized in that: The side surface of the acid extraction tube is provided with two acid extraction side holes which are arranged opposite to each other.

6. The bottom sealing device of the acid extraction tube with a side opening according to claim 1, characterized in that: It also includes an electric soldering iron, the welding end face of which is designed as a flat head. When in use, one end of the acid extraction tube to be sealed is hot-melted by the electric soldering iron and then sealed.

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