Acid adding kettle for lead storage battery

Abstract

The utility model discloses an acid adding kettle for a lead storage battery, which comprises a kettle body and a kettle cover, the bottom surface of the kettle body is also provided with supporting legs which are supported on the top surface of the lead storage battery during acid adding, the supporting legs and the kettle body are detachably mounted, the bottom surface of the kettle body is provided with mounting holes for mounting the supporting legs, and the kettle cover is arranged on the kettle body. A threaded connection structure, a buckle connection structure, an interference fit connection structure or a pin shaft connection structure is adopted between the top faces of the supporting legs and the installation holes. According to the acid adding kettle for the lead storage battery, the supporting legs and the kettle body are detachably mounted, the mounting holes for mounting the supporting legs are formed in the bottom surface of the kettle body, and the top surfaces of the supporting legs and the mounting holes adopt threaded connection structures, buckle connection structures, interference fit connection structures or pin shaft connection structures; installation is convenient, and the structural injection molding difficulty is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of lead-acid batteries, and particularly relates to an acid adding pot for lead-acid batteries. Background Technique

[0002] A lead-acid battery is a storage battery whose electrodes are mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution. When the lead-acid battery discharges, lead dioxide at the positive electrode and spongy lead at the negative electrode are converted into lead sulfate; when charging, lead sulfate at the positive and negative electrodes is respectively converted into lead dioxide and spongy lead.

[0003] Formation is a key process in the production of lead-acid batteries. Through charge and discharge, the positive active material is converted into lead dioxide, and the negative active material is converted into spongy lead. The acid adding pot is a container for storing sulfuric acid solution during the formation process of the battery.

[0004] For example, the utility model patent with the authorization publication number CN218919010U discloses an acid adding pot for negative pressure formation, including a pot body and a pot cover. The pot body further includes support rods fixed at the bottom of the cavity, on opposite sides of the acid outlet hole, for fixing the acid adding pot on the storage battery. In this prior art, the support rods are an integral structure with the pot body, and the support rods are easily knocked off during use, resulting in the scrapping of the entire acid adding pot. Therefore, the structure of the acid adding pot needs to be further improved to enhance its durability.

[0005] The utility model patent with the authorization publication number CN220510085U discloses a lead-acid battery acid adding pot with replaceable support feet, including a pot body and a pot cover. The bottom surface of the pot body is provided with support feet that support on the top surface of the lead-acid battery during acid addition, and the support feet are detachably installed on the pot body. The support rods are T-shaped blocks installed in the card slots arranged in the direction perpendicular to the cell arrangement direction of the pot body weight, and the blocks and the card slots are fixed using fixing pins. This utility model structure has high requirements for molds and equipment in injection molding production, large production difficulty, and the card slots use a lot of materials and high costs. Therefore, the structure of the acid adding pot still needs to be further improved to reduce production difficulty and costs. Content of the Utility Model

[0006] In view of the above deficiencies in the prior art, the utility model provides an acid adding pot for lead-acid batteries, and optimizes the design of the replaceable support foot structure.

[0007] A lead-acid battery acid addition pot, comprising a pot body and a pot cover. The inner cavity of the pot body is divided into multiple single cells, and the bottom surface of the pot body is provided with an acid outlet corresponding to each single cell. When adding acid, place the lead-acid battery acid addition pot on the top surface of the lead-acid battery, and the acid outlet is inserted and matched with the acid injection hole column of the lead-acid battery. The bottom surface of the pot body is further provided with support feet that support on the top surface of the lead-acid battery when adding acid. The support feet are detachably installed on the pot body. The bottom surface of the pot body is provided with installation holes for installing the support feet. A threaded connection structure, a snap connection structure, an interference fit connection structure or a pin connection structure is adopted between the top surface of the support feet and the installation holes.

[0008] Preferably, a snap connection structure is adopted between the top surface of the support feet and the installation holes;

[0009] The top of the support feet has a cylindrical installation part, and the top surface of the installation part has a card part with an outer diameter larger than that of the installation part. The thickness direction of the card part does not exceed the diameter of the installation part;

[0010] The installation hole has a lower fitting part with a smaller inner diameter that is fitted with the installation part during assembly, and an upper fitting part with a larger inner diameter that is fitted with the card part during assembly. The side wall of the lower fitting part has a through groove for the card part to pass through;

[0011] During assembly, insert the card part of the support feet into the through groove until it reaches the upper fitting part, and then rotate the support feet so that the card part is stuck in the upper fitting part.

[0012] More preferably, the bottom surface of the pot body protrudes downward with an installation post, and the installation hole with a downward opening is provided on the installation post.

[0013] Preferably, the installation holes are arranged at the adjacent positions of two single cells at the bottom edge of the pot body or at the corners of the outermost single cell.

[0014] Preferably, the inner cavity of the pot body is divided into 6 single cells, and the single cells are arranged in a row. The number of the installation holes is at least 2, and at least one is on each side in the arrangement direction of the single cells.

[0015] More preferably, the number of the installation holes is 2 to 14.

[0016] The support feet of the lead-acid battery acid addition pot of the present utility model are detachably installed on the pot body. Moreover, the bottom surface of the pot body is provided with installation holes for installing the support feet. A threaded connection structure, a snap connection structure, an interference fit connection structure or a pin connection structure is adopted between the top surface of the support feet and the installation holes. Through the above installation structure, the installation is convenient and the injection molding difficulty of the structure is relatively low. Description of the Drawings

[0017] Figure 1This is a cross-sectional view of the acid adding pot for the lead-acid battery of the present utility model.

[0018] Figure 2 It is Figure 1 a partial enlarged view of A and B in

[0019] Figure 3 the structure of the acid adding pot for the lead-acid battery with 2 support feet.

[0020] Figure 4 the structure of the acid adding pot for the lead-acid battery with 3 support feet.

[0021] Figure 5 the structure of the acid adding pot for the lead-acid battery with 6 support feet.

[0022] Figure 6 the structure of the acid adding pot for the lead-acid battery with 14 support feet.

[0023] Figure 7 the schematic bottom view of the installation hole.

[0024] Figure 8 the schematic three-dimensional view of the support foot.

[0025] Reference numerals: pot body 1, pot cover 2, single cell 3, acid outlet 4, mounting post 5,

[0026] installation hole 6, lower mating part 61, upper mating part 62, through groove 63,

[0027] support foot 7, mounting part 71, card part 72. Specific embodiments

[0028] As Figures 1 to 8 shown, an acid adding pot for a lead-acid battery includes a pot body 1 and a pot cover 2. The inner cavity of the pot body 1 is divided into multiple single cells 3. In the structure shown in the figure, the inner cavity of the pot body 1 is divided into 6 single cells 3 in total, and each single cell 3 is arranged in a row. The bottom surface of the pot body 1 is provided with an acid outlet 4 corresponding to each single cell 3. When adding acid, the acid adding pot for the lead-acid battery is placed on the top surface of the lead-acid battery, and the acid outlet 4 is inserted and mated with the acid injection hole column of the lead-acid battery.

[0029] In order to make the acid adding pot for the lead-acid battery remain stable when assembled on the top surface of the lead-acid battery, a support foot 7 that supports on the top surface of the lead-acid battery during acid addition is further provided on the bottom surface of the pot body 1.

[0030] The support foot 7 is detachably installed with the pot body 1. The bottom surface of the pot body 1 is provided with an installation hole 6 for installing the support foot 7. A threaded connection structure, a snap connection structure, an interference fit connection structure or a pin connection structure is adopted between the top surface of the support foot 7 and the installation hole 6.

[0031] In a preferred embodiment, as Figure 2 ,Figure 7 , Figure 8 As shown in Figure 8 , a snap connection structure is adopted between the top surface of the support leg 7 and the mounting hole 6. The top of the support leg 7 has a cylindrical mounting portion 71, and the top surface of the mounting portion 71 has a card portion 72 with an outer diameter larger than that of the mounting portion 71. The thickness direction of the card portion 72 does not exceed the diameter of the mounting portion 71.

[0032] The mounting hole 6 has a lower mating portion 61 with a smaller inner diameter that mates with the mounting portion 71 during assembly, and an upper mating portion 62 with a larger inner diameter that mates with the card portion 72 during assembly. The side wall of the lower mating portion 61 has a through groove 63 for the card portion 72 to pass through.

[0033] During assembly, the card portion 72 of the support leg 7 is inserted into the through groove 63 until it reaches the upper mating portion 62, and then the support leg 7 is rotated to make the card portion 72 snap into the upper mating portion 62.

[0034] In a preferred embodiment, the bottom surface of the kettle body 1 protrudes downward with a mounting post 5, and the mounting post 5 has a downward-opening mounting hole 6. The mounting hole 6 is provided at the adjacent position of two single cells 3 at the bottom surface edge of the kettle body 1 or at the corner of the outermost single cell 3.

[0035] As Figures 3 to 6 shown, the inner cavity of the kettle body 1 is divided into 6 single cells 3, and each single cell 3 is arranged in a row. The number of mounting holes 6 is at least 2, with at least one on each side in the arrangement direction of the single cells 3. Arranging at least one on each side can ensure that the lead-acid battery acid addition kettle will not tip over to both sides during use. Preferably, the number of mounting holes 6 is 2 to 14. Figure 3 In Figure 3 , the number of mounting holes 6 is 2, which are respectively arranged at the adjacent position of the middle two single cells 3, one on each side. Figure 4 In Figure 4 , the number of mounting holes 6 is 3. One is on one side, arranged at the adjacent position of the middle two single cells 3, and 2 are on the other side, respectively arranged at the adjacent position of the middle two single cells 3 and the adjacent position of one single cell 3 further outside. Figure 5 In Figure 5 , the number of mounting holes 6 is 6, with 3 arranged on each side and arranged at intervals. Figure 6 In Figure 6 , the number of mounting holes 6 is 14, with 7 arranged on each side. Mounting holes 6 are provided at the adjacent position of two single cells 3 and at the corners of the outermost single cell 3. Figures 3 to 6 In Figures 3 to 6 , each mounting hole 6 is fitted with a support leg 7.

Claims

1. A lead-acid battery acid adding pot, comprising a pot body and a pot cover, wherein the inner cavity of the pot body is divided into a plurality of cells, and an acid outlet is provided on the bottom surface of the pot body corresponding to each cell. When adding acid, the lead-acid battery acid adding pot is placed on the top surface of the lead-acid battery, and the acid outlet is plugged and matched with the acid injection hole column of the lead-acid battery, characterized in that: The bottom surface of the kettle body is also provided with a supporting foot that is supported on the top surface of the lead-acid battery when acid is added. The supporting foot and the kettle body are detachably installed. The bottom surface of the kettle body is provided with a mounting hole for installing the supporting foot. A threaded connection structure, a snap connection structure, an interference fit connection structure or a pin connection structure is adopted between the top surface of the supporting foot and the mounting hole.

2. The lead-acid battery acid filling pot according to claim 1, characterized in that: A buckle connection structure is adopted between the top surface of the supporting foot and the mounting hole; The top of the support foot has a cylindrical mounting portion, the top surface of the mounting portion has a card portion with an outer diameter greater than that of the mounting portion, and the thickness direction of the card portion does not exceed the diameter of the mounting portion; The mounting hole has a lower matching portion with a smaller inner diameter, which matches with the mounting portion during assembly, and an upper matching portion with a larger inner diameter, which matches with the card portion during assembly, and the side wall of the lower matching portion has a through groove for the card portion to pass through; During assembly, the card portion of the support leg is extended into the through slot until it reaches the upper matching portion, and then the support leg is rotated to allow the card portion to be clamped in the upper matching portion.

3. The lead-acid battery acid filling pot according to claim 2, characterized in that: A mounting column protrudes downward from the bottom surface of the kettle body, and the mounting column is provided with the mounting hole opening downward.

4. The lead-acid battery acid filling pot according to claim 1, characterized in that: The mounting hole is arranged at two adjacent cells on the bottom edge of the kettle body or at a corner of the outermost cell.

5. The lead-acid battery acid filling pot according to claim 1, characterized in that: The inner cavity of the kettle body is divided into 6 cells, each cell is arranged in a row, and the number of the mounting holes is at least 2, with at least one on each side of the cell arrangement direction.

6. The lead-acid battery acid filling pot according to claim 5, characterized in that: The number of the mounting holes is 2 to 14.

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