Lead-acid storage battery pole plate falling strength detection tool
By designing a lead-acid battery electrode plate drop strength testing fixture that includes a base plate, column, horizontal plate, and electrode plate adsorption device, the fixture utilizes a negative pressure system and a foot switch to achieve automated vertical drop testing of the electrode plates, solving the error problem existing in manual testing and achieving rapid and accurate testing results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CAMEL GROUP HUAZHONG BRANCH CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-15
AI Technical Summary
Existing methods for testing the drop strength of electrode plates rely on manual judgment, which affects the accuracy and efficiency of the test results, especially when ensuring the horizontality of the electrode plates and synchronous release.
The testing fixture consists of a base plate, column, horizontal plate, detection plate, and electrode adsorption device. It uses a negative pressure system to adsorb the electrode through a suction nozzle, and combines a foot switch to control the vertical free fall motion of the electrode to achieve automated testing.
It enables rapid and accurate detection of plate drop strength, improves the accuracy and efficiency of detection, and ensures the reliability of detection results.
Smart Images

Figure CN224247265U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lead-acid battery production technology, specifically relating to a tooling for testing the drop strength of lead-acid battery plates. Background Technology
[0002] The current method for testing the drop strength of electrode plates involves taking a cured, dry electrode plate and weighing it (W1). Holding one edge of the plate in each hand, the plate is moved to a height of 1 meter above a drop plate. The relative positions of the hands are adjusted so that the plate surface is horizontal. Then, the plates are released simultaneously, allowing them to fall freely until they collide with the drop plate. This process is repeated 9 times, and the weight of the plate (W2) is recorded. The weight loss rate of the plate after 9 drops is the drop strength of the plate, calculated using the formula: Drop Strength = (W1 - W2) / W1 * 100%.
[0003] This testing method requires manual judgment of the drop height and the horizontality of the electrode plate. When releasing the electrode plate, it is impossible to ensure that both hands are synchronized, which can easily cause the electrode plate to tilt or flip, affecting the accuracy of the measurement results. Utility Model Content
[0004] The purpose of this invention is to provide a lead-acid battery plate drop strength testing fixture that can quickly and accurately detect the plate drop strength, improve the accuracy and efficiency of the test, and solve the problem that the plate is easily tilted or flipped, which affects the accuracy of the measurement results.
[0005] The technical solution of this utility model is: a tooling for testing the drop strength of lead-acid battery plates, characterized in that: it is composed of a base plate, a column, a horizontal plate, a detection plate, and a plate adsorption device; wherein, the column is vertically fixed on the base plate; the horizontal plate is vertically mounted on the column through a sliding mechanism; the detection plate is mounted parallel to the bottom of the horizontal plate through a fixed column; the plate adsorption device includes a negative pressure system, a suction nozzle, and a switch, the suction nozzle is set on the detection plate and faces downward, and the negative pressure system is connected to the switch and the suction nozzle through a first air pipe and a third air pipe, respectively.
[0006] The negative pressure system described in the technical solution of this utility model includes a compressed air source and a vacuum generator; the vacuum generator is connected to the compressed air source, a switch and a suction nozzle through a second air pipe, a first air pipe and a third air pipe respectively.
[0007] In the technical solution of this utility model, the vacuum generator is installed and fixed on the base plate next to the column.
[0008] The negative pressure system described in the technical solution of this utility model is a vacuum pump; the vacuum pump is connected to the switch and the suction nozzle through the first air pipe and the third air pipe respectively.
[0009] In the technical solution of this utility model, the vacuum pump is installed and fixed on the base plate next to the column.
[0010] The technical solution of this utility model has three or more suction nozzles, which are evenly distributed on the detection plate and are on the same horizontal plane.
[0011] The technical solution of this utility model includes four suction nozzles.
[0012] The sliding mechanism described in the technical solution of this utility model includes a sliding groove on the horizontal plate that cooperates with the column and a fixing screw, and the height of the horizontal plate can be adjusted by changing the position of the fixing screw.
[0013] The technical solution of this utility model uses four fixing screws, two on each side.
[0014] The switch described in the technical solution of this utility model is a foot switch.
[0015] This utility model employs a lead-acid battery electrode plate drop strength testing fixture consisting of a base plate, a column, a horizontal plate, a detection plate, and an electrode plate adsorption device. The column is vertically fixed to the base plate, the horizontal plate is vertically fixed to the top of the column, and the detection plate is mounted parallel to the horizontal plate below it via a fixed column. The electrode plate adsorption device includes a negative pressure system, a suction nozzle, and a switch. The suction nozzle is positioned on the detection plate, facing downwards. The negative pressure system is connected to the switch and the suction nozzle via a first and a third air pipe. Therefore, during electrode plate drop strength testing, the height of the horizontal plate, the detection plate, or the suction nozzle from the base plate can be adjusted using fixing screws to match the set drop height. Compressed air generates negative pressure suction, which holds the electrode plate weighing W1 through the suction nozzle. The switch controls the electrode plate to fall vertically and freely onto the base plate. After nine repeated drops, the electrode plate weight W2 is measured, and the electrode plate drop strength is calculated.
[0016] This invention features the ability to quickly and accurately detect the drop strength of plates at different drop heights, improving detection accuracy and efficiency. It is mainly used for detecting the drop strength of plates. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Attached: 1-Base plate; 2-Foot switch; 3-First air pipe; 4-Vacuum generator; 5-Second air pipe; 6-Column; 7-Third air pipe; 8-Horizontal plate; 9-Detection plate; 10-Suction nozzle; 11-Fixing column; 12-Fixing screw. Detailed Implementation
[0019] 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.
[0020] like Figure 1 As shown, an embodiment of the lead-acid battery plate drop strength testing fixture of this utility model consists of a base plate 1, a column 6, a horizontal plate 8, a testing plate 9, a compressed air source, a vacuum generator 4, a foot switch 2, and a suction nozzle 10.
[0021] The base plate 1 functions as a drop plate and a base, and is flat in shape. The upright 6 is rod-shaped, with its lower end vertically fixed to the base plate 1. The horizontal plate 8 is plate-shaped and vertically fixed to the upright 6 by fixing screws 12. The detection plate 9 is mounted parallel to the bottom of the horizontal plate 8 by fixing post 11. The height of the detection plate 9 from the base plate 1 is set by adjusting the height of the horizontal plate 8 on the upright 6 (loosening the fixing screws 12, adjusting to the detection height, and then tightening the fixing screws 12) to accommodate different drop height requirements.
[0022] A compressed air source, a vacuum generator 4, a foot switch 2, and suction nozzles 10 constitute the electrode adsorption device. Four suction nozzles 10 are evenly distributed on the detection plate 9, facing downwards and at the same horizontal level. The vacuum generator 4 is mounted and fixed on the base plate 1 next to the column 6. The vacuum generator 4 is connected to the compressed air source, foot switch 2, and suction nozzles 10 via a second air pipe 5, a first air pipe 3, and a third air pipe 7, respectively. Compressed air generates negative pressure suction, which is used to hold the dry plate to be tested through the suction nozzles 10. The foot switch 2 controls the flow of compressed air into the vacuum generator 4. When the foot switch 2 is released, compressed air enters the vacuum generator 4 normally, creating negative pressure at the suction nozzles 10 to hold the electrode. When the foot switch 2 is pressed, the compressed air supply to the vacuum generator 4 is cut off, the suction at the suction nozzles 10 disappears, and the dry plate to be tested falls vertically and freely onto the base plate 1.
[0023] The compressed air source and vacuum generator 4 can also be replaced by a vacuum pump.
[0024] The test plate weighing W1 is attached to the suction nozzle 10. The foot switch 2 is pressed, and the test plate is dropped vertically onto the base plate 1. After 9 drops, the weight W2 of the test plate is measured, and the drop strength of the plate is calculated.
[0025] This invention utilizes negative pressure to adsorb the dry raw board to be tested, causing it to fall vertically from a fixed height, thus ensuring the accuracy of the test. Adjusting the height of the test board allows for rapid and accurate testing at different drop heights.
Claims
1. A tooling for testing the drop strength of lead-acid battery plates, characterized in that: It consists of a base plate (1), a column (6), a horizontal plate (8), a detection plate (9), and an electrode adsorption device; wherein, the column (6) is vertically fixed on the base plate (1); the horizontal plate (8) is vertically mounted on the column (6) through a sliding mechanism; the detection plate (9) is mounted parallel to the horizontal plate (8) through a fixing column (11); the electrode adsorption device includes a negative pressure system, a suction nozzle (10), and a switch, the suction nozzle (10) is set on the detection plate (9) and faces downward, and the negative pressure system is connected to the switch and the suction nozzle (10) through the first air pipe (3) and the third air pipe (7) respectively.
2. The lead-acid battery plate drop strength testing fixture according to claim 1, characterized in that: The negative pressure system includes a compressed air source and a vacuum generator (4); the vacuum generator (4) is connected to the compressed air source, the switch and the suction nozzle (10) through the second air pipe (5), the first air pipe (3) and the third air pipe (7) respectively.
3. The lead-acid battery plate drop strength testing fixture according to claim 2, characterized in that: The vacuum generator (4) is installed and fixed on the base plate (1) next to the column (6).
4. The lead-acid battery plate drop strength testing fixture according to claim 1, characterized in that: The negative pressure system is a vacuum pump; the vacuum pump is connected to the switch and the nozzle (10) through the first air pipe (3) and the third air pipe (7) respectively.
5. The lead-acid battery plate drop strength testing fixture according to claim 4, characterized in that: The vacuum pump is mounted and fixed on the base plate (1) next to the column (6).
6. A tooling for testing the drop strength of lead-acid battery plates according to any one of claims 1-5, characterized in that: The number of the suction nozzles (10) is greater than or equal to 3, and they are evenly distributed on the detection plate (9) and are on the same horizontal plane.
7. The lead-acid battery plate drop strength testing fixture according to claim 6, characterized in that: The number of suction nozzles (10) is 4.
8. A tooling for testing the drop strength of lead-acid battery plates according to any one of claims 1-5 and 7, characterized in that: The sliding mechanism includes a sliding groove on the horizontal plate (8) that cooperates with the column (6) and a fixing screw (12), and the height of the horizontal plate (8) can be adjusted by changing the position of the fixing screw (12).
9. The lead-acid battery plate drop strength testing fixture according to claim 8, characterized in that: The number of fixing screws (12) is 4, 2 on each side.
10. A tooling for testing the drop strength of lead-acid battery plates according to any one of claims 1-5 and 7, characterized in that: The switch is a foot switch (2).