An acid-preventing acid filling pot

Abstract

This utility model discloses an acid-overflow-preventing acid filling container, including a rubber nozzle. The lower inner wall of the rubber nozzle is press-fitted with the acid injection port. A sealing ring is provided on the outer circumferential surface of the portion of the lower end of the rubber nozzle that extends into the safety valve groove, for sealing against the side wall of the safety valve groove. The press-fit between the lower inner wall of the rubber nozzle and the acid injection port causes the rubber nozzle to be subjected to an outward squeezing force when connected. The sealing ring on the lower outer circumferential surface of the rubber nozzle, pressed outward, maintains a seal against the side wall of the safety valve groove, preventing acid from overflowing. This overflow prevention extends the service life of the acid filling container. It also inhibits acid outflow, reducing acid corrosion on the battery surface and enhancing safety. Furthermore, the overflow prevention ensures full utilization of the acid, significantly improving the battery formation effect.

Description

Technical Field

[0001] This utility model belongs to the field of lead-acid battery technology, specifically relating to an acid-filling pot that prevents acid overflow. Background Technology

[0002] The top surface of the battery cover has a cover groove, the bottom surface of the cover groove has a safety valve groove, the bottom surface of the safety valve groove has an acid injection hole column, and the acid injection hole column has an acid injection hole in the middle.

[0003] During the battery manufacturing process, acidic electrolyte needs to be added to the battery. Generally, an acid filling pot is used for adding acid. The bottom of the acid filling pot has an acid filling port. When in use, the acid filling pot is placed on the middle cover of the battery, and a rubber nozzle is used to connect the acid filling port and the acid injection hole column.

[0004] For example, utility model patent CN219959370U discloses a universal lead-acid battery acid filler, including a plug that fixes an acid inlet plate to the acid outlet. The plug includes a connecting part surrounding the acid outlet, which is sleeved on the acid outlet and has an interference fit with the outer periphery of the acid outlet. The plug is made of rubber.

[0005] In the aforementioned prior art, after a period of use, the rubber spout (plug) of the acid filling pot may become loose due to wear, deformation, acid corrosion, etc., resulting in acid overflow and affecting the battery formation effect. Summary of the Invention

[0006] This invention addresses the aforementioned shortcomings in the existing technology by providing an acid-preventing acid-adding pot.

[0007] An acid-filling kettle for adding acid to a storage battery is disclosed. The storage battery includes a middle cover with a cover groove on its top surface and multiple safety valve grooves on the bottom surface of the cover groove. Each safety valve groove has an acid injection hole on its bottom surface with an acid injection hole in the middle. The kettle includes a body with an acid filling port on its bottom surface. The acid filling port has a rubber nozzle for connecting to the acid injection hole on the middle cover. The upper end of the rubber nozzle is connected to the acid filling port, and the lower end is connected to the acid injection hole. The inner wall of the lower end of the rubber nozzle is press-fitted with the acid injection hole. A sealing ring is provided on the outer circumference of the portion of the lower end of the rubber nozzle that extends into the safety valve groove for sealing with the side wall of the safety valve groove.

[0008] Preferably, the sealing ring is formed by protrusion on the rubber nozzle.

[0009] Preferably, the number of sealing rings is 1 to 3.

[0010] Preferably, the acid-adding pot further includes an acid-inducing plate with a protruding limiting block. The end of the acid-adding port has a groove for the limiting block to be engaged. The upper inner diameter of the rubber nozzle is larger than the lower inner diameter, thus forming a stepped structure between the upper and lower ends. When the upper end of the rubber nozzle is engaged with the acid-adding port, the stepped structure, in conjunction with the groove, limits the limiting block.

[0011] Preferably, the kettle body is also provided with support feet for supporting the top surface of the middle cover during use.

[0012] More preferably, the support foot includes at least two spaced apart, the support foot is located between two adjacent acid filling ports, the support foot is a sheet structure, the bottom surface is supported on the bottom surface of the cover plate groove and / or the top surface of the middle cover located outside the cover plate groove.

[0013] The acid filling vessel of this application prevents acid overflow. The lower inner wall of the rubber nozzle is pressurized to the acid injection hole column. When the rubber nozzle is connected to the acid injection hole column, the rubber nozzle is subjected to an outward squeezing force. A sealing ring is provided on the lower outer circumference of the rubber nozzle. The sealing ring is pressed outward and keeps sealed with the side wall of the safety valve groove to prevent acid from overflowing.

[0014] The overflow prevention function extends the lifespan of the acid filling container. It also inhibits acid leakage, reducing acid corrosion on the battery surface and enhancing safety. Furthermore, the overflow prevention function ensures efficient use of the acid, significantly improving battery formation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the acid-adding pot of this utility model.

[0016] Figure 2 This is a side view of the acid-adding pot of this utility model.

[0017] Figure 3 for Figure 2 A cross-sectional view along the AA direction.

[0018] Figure 4 for Figure 3 Enlarged view of part B in the middle.

[0019] Figure 5 This is a three-dimensional structural diagram of the acid-adding kettle and the storage battery after installation.

[0020] Figure 6 This is a side view of the structure of the acid filling pot and the storage battery after installation.

[0021] Figure 7 for Figure 6 A cross-sectional view along the CC direction.

[0022] Figure 8 for Figure 7 Enlarged view of part of D.

[0023] Figure 9 This is a schematic diagram of the structure of the acid-adding pot and the middle lid of this utility model.

[0024] Figure 10 for Figure 9 A cross-sectional view along the EE direction.

[0025] Reference numerals: Battery 1, Battery compartment 11, Middle cover 12, Cover slot 121, Safety valve slot 122, Acid injection hole column 123, Acid injection hole 124, Acid filling pot 2, Pot body 21, Acid filling port 211, Slot 212, Support foot 213, Pot lid 22, Rubber nozzle 23, Sealing ring 231, Step structure 232, Acid lead plate 24, Limiting block 241. Detailed Implementation

[0026] like Figures 1-10 As shown, an acid-overflow-proof acid-adding container 2 is used to add acid to a storage battery 1. The storage battery 1 includes a battery compartment 11 and a middle cover 12 that fit together. The top surface of the middle cover 12 has a cover plate groove 121 for subsequent installation of a cover plate. The bottom surface of the cover plate groove 121 is provided with multiple safety valve grooves 122. In the structure shown in the figure, there are 6 safety valve grooves 122. The bottom surface of each safety valve groove 122 is provided with an acid injection hole post 123, and the acid injection hole post 123 has an acid injection hole 124 in the middle.

[0027] like Figures 1-4 As shown, the acid-adding pot 2 includes a pot body 21, with an opening on the top surface of the pot body 21 and a pot lid 22 fitted therein. The bottom surface of the pot body 21 has an acid-adding spout 211, and a rubber nozzle 23 is provided at the acid-adding spout 211. The rubber nozzle 23 is made of rubber and has a certain degree of elasticity, which can maintain an interference fit connection with the acid-adding spout 211.

[0028] like Figures 5-8 As shown, the upper end of the rubber nozzle 23 is connected to the acid filling port, and the lower end is connected to the acid injection hole column 123. The inner wall of the lower end of the rubber nozzle 23 is press-fitted with the acid injection hole column 123. A sealing ring 231 is provided on the outer circumferential surface of the portion of the lower end of the rubber nozzle 23 that extends into the safety valve groove 122 for sealing against the side wall of the safety valve groove 122. The sealing ring 231 protrudes from the rubber nozzle 23. The number of sealing rings 231 is 1 to 3; in the structure shown in the figure, the number of sealing rings 231 is 2.

[0029] The acid filling vessel 2 is pressurized with the acid injection hole column 123 through the inner wall of the lower end of the rubber nozzle 23. When the rubber nozzle 23 is connected to the acid injection hole column 123, the rubber nozzle 23 is subjected to an outward squeezing force. A sealing ring 231 is provided on the outer circumference of the lower end of the rubber nozzle 23. The sealing ring 231 is pressed outward and keeps sealed with the side wall of the safety valve groove 122 to prevent acid from overflowing.

[0030] The overflow prevention function extends the lifespan of the acid filling container. It also inhibits acid leakage, reducing acid corrosion on the battery surface and enhancing safety. Furthermore, the overflow prevention function ensures efficient use of the acid, significantly improving battery formation.

[0031] like Figures 1-4 As shown, the acid-adding pot 2 also includes an acid-inducing plate 24, on which a limiting block 241 protrudes, and the end of the acid-adding port 211 has a slot 211 for the limiting block 241 to be inserted.

[0032] like Figure 4 As shown, the inner diameter of the upper end of the rubber nozzle 23 is larger than that of the lower end, thus forming a stepped structure 232 between the upper and lower ends. When the upper end of the rubber nozzle 23 is engaged with the acid filling port 211, the stepped structure 232 engages with the slot 211 to limit the position of the limiting block 241.

[0033] The vessel body 21 is also provided with support feet 213 for supporting the vessel on the top surface of the middle cover during use. At least two support feet 213 are spaced apart and positioned between adjacent acid inlets 211. Figures 9-10 As shown, there are two support feet 213, located between the outermost acid inlet 211 and the adjacent acid inlet 211, respectively. The support feet 213 are sheet-like structures with a relatively long and thin bottom surface, allowing them to support a wider area along the width of the middle cover 12. The bottom surface of the support feet 213 is supported on the bottom surface of the cover plate groove 121 and / or the top surface of the middle cover outside the cover plate groove 121. In the structure shown, most of the bottom surface of the support feet 213 is supported within the cover plate groove 121, with a small portion on one side extending outside the cover plate groove 121. This design of the support feet 213 improves support stability compared to a columnar support foot design.

Claims

1. An acid pouring pot for preventing acid overflow, which is used for acid charging of a storage battery including a center cover having a cover piece groove in a top surface thereof, the bottom surface of the cover piece groove being provided with a plurality of safety valve grooves, the bottom surface of each of the safety valve grooves being provided with an acid pouring hole post having an acid pouring hole in the middle thereof, characterized in that, The acid-adding pot includes a pot body, and the bottom surface of the pot body is provided with an acid-adding port. The acid-adding port is provided with a rubber nozzle for connecting with the acid injection hole column on the middle cover. The upper end of the rubber nozzle is connected to the acid-adding port, and the lower end is connected to the acid injection hole column. The inner wall of the lower end of the rubber nozzle is press-fitted with the acid injection hole column. The outer circumferential surface of the portion of the lower end of the rubber nozzle that extends into the safety valve groove is provided with a sealing ring for sealing with the side wall of the safety valve groove. ​ 2. The acid pouring pot of claim 1, wherein, The sealing ring is formed by protrusion on the rubber nozzle.

3. The acid pouring pot of claim 1, wherein, The number of sealing rings is 1 to 3.

4. The acid pouring pot of claim 1, wherein, The acid-adding pot also includes an acid-inducing plate, on which a limiting block is protruding, and the end of the acid-adding port has a groove for the limiting block to be engaged. The upper inner diameter of the rubber nozzle is larger than the lower inner diameter, thus forming a stepped structure between the upper and lower ends. When the upper end of the rubber nozzle is engaged with the acid filling port, the stepped structure, together with the slot, limits the position of the limiting block.

5. The acid pouring pot of claim 1, wherein, The kettle body is also provided with support feet for supporting the top surface of the middle cover during use.

6. The acid pouring jug according to claim 5, wherein, The support feet include at least two spaced apart, and the support feet are located between two adjacent acid filling ports. The support feet are sheet-like structures, with their bottom surfaces supported on the bottom surface of the cover plate groove and / or the top surface of the middle cover located outside the cover plate groove.

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