Quantitative manual acid adding kettle for lead-acid rich liquid battery
By designing a manual acid-adding pitcher for lead-acid rich batteries, the problems of poor accuracy, splashing and leakage, and low efficiency in the manual acid-adding process of lead-acid batteries have been solved. It achieves accurate metering, safe and efficient acid injection, and reduces labor intensity and the risk of impurities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CAMEL GRP XIANGYANG BATTERY
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-12
AI Technical Summary
The existing manual acid-adding process for lead-acid batteries suffers from problems such as poor precision, splashing and leakage, low efficiency, and the risk of impurities, which affect the consistency of acid content between batteries and operational safety.
A manual acid-adding pot for lead-acid rich electrolyte batteries, consisting of a main storage chamber, a stopcock valve, and a metering chamber, was designed. It is made of transparent acid-resistant PC material. The stopcock valve switches between on and off states by rotating 90°. The metering chamber adopts a 60° cone angle structure and precision scale to achieve accurate measurement and a closed flow channel design.
It improves the acid addition accuracy to ±0.5ml, shortens the single operation time to 8 seconds, reduces labor intensity and eliminates acid splashing, reduces the risk of impurities entering the system, and improves operational efficiency and safety.
Smart Images

Figure CN224355431U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lead-acid battery manufacturing technology, specifically relating to a manual acid-adding pot for lead-acid rich electrolyte batteries. Background Technology
[0002] The manual acid-adding process for lead-acid batteries requires injecting a measured amount of sulfuric acid solution into the acid-adding port of the lead-acid battery. Workers typically hold a measuring cup in one hand and a sulfuric acid container in the other, while also looking down to read the scale, resulting in very low efficiency. This manual operation also has several drawbacks: 1. Poor accuracy: Relying on visual readings of the scale lines is prone to errors, especially when the line of sight is not level, affecting the consistency of acid levels between batteries; 2. Splashing / Dripping: Acid is prone to splashing and dripping during pouring, contaminating equipment and the environment, and endangering operator safety; 3. Low efficiency / fatigue: Repeated pouring, aligning with the filling port, and observing the scale are time-consuming and laborious, leading to worker fatigue; 4. Impurity risk: The acid may contain minute impurities, which may affect battery performance if poured directly into the battery. Utility Model Content
[0003] The purpose of this invention is to provide a manual acid-adding device for lead-acid rich electrolyte batteries, addressing the aforementioned shortcomings.
[0004] The technical solution of this utility model is: a manual acid-adding pot for lead-acid rich electrolyte batteries, characterized in that: it consists of a main storage chamber, a stopcock valve and a metering chamber; wherein, the stopcock valve is connected between the bottom of the main storage chamber and the top of the metering chamber.
[0005] The plug valve described in this utility model has a valve handle on its side for controlling the opening and closing of the plug valve.
[0006] In the technical solution of this utility model, a handle is provided on the side of the main storage cavity.
[0007] In the technical solution of this utility model, the valve handle is a T-shaped operating rod connected to the valve core keyway; when the valve handle is in the vertical position, the L-shaped flow channel is opened, and when it is in the horizontal position, the flow path is blocked.
[0008] The main storage cavity in the technical solution of this utility model is a cylindrical container.
[0009] The main storage cavity in the technical solution of this utility model is made of transparent acid-resistant PC.
[0010] The main storage cavity in the technical solution of this utility model has a diameter of 120mm, a height of 240mm, and a volume of 1.5L.
[0011] The quantitative cavity in the technical solution of this utility model is made of transparent acid-resistant PC, and the side wall of the cavity is provided with graduations.
[0012] The quantitative cavity described in the technical solution of this utility model has a 60° conical angle structure, with precision graduations laser-etched on the sidewall of the cavity, an effective volume of 100ml, and a conical surface roughness Ra≤0.8μm.
[0013] The plug valve described in the technical solution of this utility model is horizontally installed at the bottom center of the main storage chamber. The brass valve body has an internal φ8mm L-shaped flow channel, and the valve core cone surface is covered with a 0.5mm thick PTFE sealing layer. The on / off state is switched by rotating 90°.
[0014] The beneficial effects of this utility model are as follows: First, the physical isolation metering mechanism of the quantitative cavity improves the filling accuracy from ±5ml of the traditional measuring cylinder to ±0.5ml; second, the integrated operation process reduces the time for a single operation to 8 seconds, which is 73% more efficient than the original process; third, the closed flow channel design eliminates acid splashing and isolates environmental dust, reduces the risk of particulate matter mixing, and simultaneously achieves ergonomic optimization, while the 15° low tilt angle design significantly reduces labor intensity.
[0015] This invention features a simple structure, convenient operation, precise quantification, and significantly reduced labor intensity. It is mainly used for the quantitative injection of sulfuric acid solution into lead-acid rich electrolyte batteries. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Appendix: 1-Main storage chamber; 2-Plug valve; 3-Metering chamber; 4-Valve handle; 5-Handle. Detailed Implementation
[0018] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings of this specification are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this utility model.
[0019] like Figure 1 As shown, an embodiment of the present invention, a manual acid-adding jug for lead-acid rich electrolyte batteries, consists of a main storage chamber 1, a stopcock valve 2, and a metering chamber 3. The stopcock valve 2 is connected between the bottom of the main storage chamber 1 and the top of the metering chamber 3, and they are interconnected.
[0020] The main storage chamber 1 is a cylindrical container made of transparent, acid-resistant PC. The main storage chamber 1 has a diameter of 120mm, a height of 240mm, and a volume of 1.5L, used for storing electrolyte. A handle 5 is provided on the side of the main storage chamber 1, fixed to the shoulder of the main storage chamber and positioned so that the center of gravity of the container is on the axis.
[0021] Plug valve 2 is a plug valve with an L-shaped flow channel. Plug valve 2 is horizontally installed at the center of the bottom of the main reservoir. The brass valve body has an internal φ8mm L-shaped flow channel, and the valve core's conical surface is covered with a 0.5mm thick PTFE sealing layer. The on / off state is switched by rotating 90°. A valve handle 4, a 50mm long T-shaped operating rod, is located on the side of plug valve 2 and controls its on / off state. When valve handle 4 is in the vertical position, the L-shaped flow channel is open; when in the horizontal position, the flow path is blocked.
[0022] The metering chamber 3 is vertically connected below the stopcock valve 2. It features a 60° cone angle design and is made of transparent, acid-resistant PC. The sidewalls of the chamber are laser-engraved with precise graduations. The effective volume is 100ml, and the cone surface roughness Ra≤0.8μm. The top of the metering chamber 3 has an open outlet. By holding the handle and tilting the container at an angle of more than 15°, the acid solution can flow into the lead-acid rich electrolyte battery's acid filling port through the pouring outlet, with a residual amount of less than 0.1ml.
Claims
1. A manual acid-adding device for lead-acid rich electrolyte batteries, characterized in that: It consists of a main storage chamber (1), a stopcock valve (2) and a metering chamber (3); wherein the stopcock valve (2) is connected between the bottom of the main storage chamber (1) and the top of the metering chamber (3).
2. The manual acid-adding device for lead-acid rich electrolyte batteries according to claim 1, characterized in that: The side of the plug valve (2) is provided with a valve handle (4) for controlling the opening and closing of the plug valve (2).
3. A manual acid-adding device for lead-acid rich electrolyte batteries according to claim 2, characterized in that: The main storage cavity (1) is provided with a handle (5) on its side.
4. A manual acid-adding device for lead-acid rich electrolyte batteries according to claim 3, characterized in that: The valve handle (4) is a T-shaped operating rod connected to the valve core keyway; when the valve handle (4) is in the vertical position, the L-shaped flow channel is opened, and when it is in the horizontal position, the flow path is blocked.
5. A manual acid-adding device for lead-acid rich electrolyte batteries according to any one of claims 1-4, characterized in that: The main storage cavity (1) is a cylindrical container.
6. A manual acid-adding device for lead-acid rich electrolyte batteries according to claim 5, characterized in that: The main storage cavity (1) is made of transparent acid-resistant PC.
7. A manual acid-adding device for lead-acid rich electrolyte batteries according to claim 6, characterized in that: The main storage chamber (1) has a diameter of 120 mm, a height of 240 mm, and a volume of 1.5 L.
8. A manual acid-adding device for lead-acid rich electrolyte batteries according to any one of claims 1-4 and 6-7, characterized in that: The quantitative cavity (3) is made of transparent acid-resistant PC, and the side wall of the cavity is marked with graduations.
9. A manual acid-adding device for lead-acid rich electrolyte batteries according to claim 8, characterized in that: The quantitative cavity (3) has a 60° cone-shaped structure, with precision graduations laser-etched on the sidewall of the cavity. The effective volume is 100ml, and the surface roughness Ra≤0.8μm.
10. A manual acid-adding device for lead-acid rich electrolyte batteries according to any one of claims 1-4, 6-7, and 9, characterized in that: The plug valve (2) is horizontally installed at the bottom center of the main storage chamber. The brass valve body has an L-shaped flow channel with a built-in diameter of φ8mm. The valve core cone surface is covered with a 0.5mm thick PTFE sealing layer. The on / off state is switched by rotating 90°.