Cylindrical battery shell detection device
By designing a cylindrical battery casing inspection device, which utilizes components such as a water tank and an electric push rod, stable and rapid airtightness testing is achieved without drilling holes in the battery casing. This supports the replacement of different battery models and reduces water consumption and operational complexity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2026-03-31
AI Technical Summary
Existing cylindrical battery casing testing equipment requires drilling holes in the casing to perform airtightness testing, which is inconvenient and inefficient.
A cylindrical battery casing testing device was designed, which utilizes components such as a water tank, electric push rod, clamping seat, conical tube seat, bottom ring seat, and rubber pad. The electric push rod pushes the conical tube seat to abut against the battery casing. Combined with the use of a water pump and an air pump, air tightness testing can be achieved without drilling. The rubber pad and seat improve tightness and reduce the risk of leakage.
It achieves stable airtightness testing without drilling holes in the battery casing, supports rapid replacement of different battery models, and reduces water consumption and operational complexity.
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Figure CN224066281U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of battery casing testing equipment, specifically to a cylindrical battery casing testing device. Background Technology
[0002] Currently, with the booming development of new energy, the production of cylindrical batteries is increasing daily. Abnormal airtightness is a common problem in battery manufacturing. Patent CN202221983223.0 discloses a cylindrical battery airtightness testing device. By bringing the first and second fixing members close together and pressing the housing, the third through hole in the housing is sealed by the first and second sealing members. The perforated steel shell portion of the cylindrical battery is installed inside the housing, while the remaining portion is exposed externally. This allows for airtightness testing of the portion of the cylindrical battery located outside the housing, and multiple cylindrical batteries can be tested simultaneously, improving testing efficiency. However, when using testing equipment to test the cylindrical battery housing, it is still necessary to drill holes in the housing, which is quite inconvenient. Therefore, we propose a cylindrical battery housing testing device. Utility Model Content
[0003] To address the problems in the existing technology, this utility model provides a cylindrical battery casing detection device.
[0004] The technical solution adopted by this utility model to solve its technical problem is a cylindrical battery casing testing device, including a body. A water tank is provided on the outer wall surface of the body, and a chassis is assembled on the bottom surface of the inner side of the water tank. A base is screwed onto the top surface of the chassis, and there are multiple sets of bases. A vertical cylinder seat is slidably installed on the top surface of the base, and a bottom ring seat that fits with the battery casing is opened on the top surface of the vertical cylinder seat. An electric push rod corresponding to the bottom ring seat is assembled in the body, and there are multiple sets of electric push rods. A retainer is assembled on the power output end of the electric push rod, and a conical tube seat that fits with the battery casing is engaged at the end of the retainer near the vertical cylinder seat. A leak-proof adhesive seat is glued to the side of the conical tube seat near the bottom ring seat, and an adhesive pad is glued to the side of the bottom ring seat near the conical tube seat.
[0005] The machine body is equipped with an air pump body, and the outer wall surface of the machine body is fitted with a valve seat that communicates with the air outlet of the air pump body. There are multiple sets of valve seats. The outer wall surface of the tapered tube seat is fitted with a three-way pipe for guiding the flow, and a flexible hose for guiding the flow is fitted between the three-way pipe and the valve seat. The outer wall surface of the machine body is fitted with a water tank, and both the bottom outlet of the water tank and the bottom outlet of the water trough are fitted with solenoid valves. A water pump body for pumping water is fitted between the two sets of solenoid valves.
[0006] By adopting the above technical solution, when using the testing equipment to test the battery casing, it is easy to fit the battery casing with the bottom ring seat in the water tank. Then, the electric push rod inside the machine operates. The operation of the electric push rod facilitates the pushing of the conical tube seat through the locking seat, causing the conical tube seat to descend and abut against the battery casing, pressing the battery casing. This confines the battery casing within the water tank, facilitating subsequent testing. At the same time, the bottom ring seat and the conical tube seat are easy to disassemble and assemble, making it convenient to change the specifications of the battery casing, thus facilitating the testing of different models of cylindrical batteries.
[0007] When the battery casing is pressed and confined in the water tank, the internal water pump and solenoid valve operate. The solenoid valve opens the closed pipe, and the water pump draws water from the tank, allowing it to enter the water tank and submerge the confined battery casing. Then, the internal air pump operates, pressurizing the air through the valve seat into the hose, and then through the hose, through the three-way connector and the tapered tube seat into the confined battery casing. Since the upper and lower ends of the battery casing respectively fit into the bottom ring seat and the tapered tube seat, and the rubber gasket and seat... To improve the tightness of the fit between the battery casing and the conical tube seat and bottom ring seat, thus reducing the possibility of leakage, if there are cracks on the surface of the battery casing, bubbles will be generated inside the water under air pressure. If there are no cracks, no cracks will appear. The internal control components can monitor the changes in air pressure at all times, so that the testing equipment can stably and smoothly test the battery casing. After the test is completed, the solenoid valve and water pump can continue to operate, so as to pump the water in the water tank back to the water tank, which facilitates the continuous use of water and reduces water consumption.
[0008] Specifically, an exhaust valve is fitted on one side of the outer circumference of the three-way pipe.
[0009] By adopting the above technical solution, after the airtightness test of the battery casing is completed, the exhaust valve on the outer periphery of the three-way pipe is activated to facilitate the release of air pressure inside the battery casing.
[0010] Specifically, the outer wall surface of the machine body is fitted with a battery box for providing power support.
[0011] By adopting the above technical solution, the battery box on the outside of the machine body can provide power support for the operation of the machine body, and enable the testing equipment to be used without an external power supply.
[0012] Specifically, both the outer wall surface of the tapered tube seat and the outer wall surface of the bottom ring seat are screwed together with hexagonal rings for support, and a sliding rod for limiting is slidably installed inside the hexagonal ring. A spring A for pushing the sliding rod to move is assembled between the hexagonal ring and the sliding rod, and a pulling block for lifting is assembled at one end of the sliding rod located on the outer periphery of the hexagonal ring.
[0013] By adopting the above technical solution, when it is necessary to replace the tapered tube seat and the bottom ring seat, the pull block on the outer circumference of the hexagonal ring of the tapered tube seat and the bottom ring seat can be pulled, so that the pull block pulls the slide rod to move, so that the end of the slide rod that is inserted into the card seat can be separated from it. Then the slide rod can be easily retracted into the tapered tube seat, and then the tapered tube seat can be pulled out. Then the T-shaped pipe on the outer circumference of the tapered tube seat can be removed to disassemble and replace the tapered tube seat. At the same time, the bottom ring seat at the top of the vertical tube seat is the same. After the replacement is completed, the spring A inside the hexagonal ring can push the slide rod, so that one end of the slide rod can be stably inserted into the card seat or the vertical tube seat, so that the tapered tube seat or the bottom ring seat can be used more stably.
[0014] Specifically, a spring B for cushioning is installed between the base and the vertical cylinder seat.
[0015] By adopting the above technical solution, spring B can provide a certain buffering performance for the vertical cylinder seat that is slidably installed on the top of the base, which can provide a certain protective performance when restricting the battery casing, so that the battery casing can be more stably limited and fixed.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. The technical solution of this application, through the design of a water tank, electric push rod, clamp, conical tube seat, chassis, base, vertical cylinder seat, bottom ring seat, rubber seat, and rubber pad, allows the battery casing to be easily fitted with the bottom ring seat in the water tank when the testing equipment is used to test the battery casing. Subsequently, the electric push rod inside the machine operates, and the operation of the electric push rod facilitates the pushing of the conical tube seat through the clamp, causing the conical tube seat to descend and abut against and press the battery casing, thus confining the battery casing within the water tank for subsequent testing. At the same time, the bottom ring seat and the conical tube seat are easy to disassemble and assemble, facilitating the replacement of battery casing specifications, thereby facilitating the testing of different models of cylindrical batteries.
[0018] 2. The technical solution of this application, through the design of a water tank, solenoid valve, water pump body, air pump body, valve seat, T-connector, and hose, enables the water pump body and solenoid valve inside the machine to operate when the battery casing is confined in the water tank under pressure. The solenoid valve opens the closed pipe, and the water pump body facilitates the extraction of water from the water tank, allowing water to enter the water tank and submerge the confined battery casing. Subsequently, the air pump body inside the machine operates, facilitating the inflation of air pressure into the hose through the valve seat, and then through the hose, the inflation of air pressure into the confined battery casing via the T-connector and tapered tube seat. Since the upper and lower ends of the battery casing are respectively connected to... The bottom ring seat and the conical tube seat fit together, and the rubber pad and seat improve the tightness of the connection between the battery casing and the conical tube seat and the bottom ring seat, reducing the possibility of leakage. If there is a crack on the surface of the battery casing, air bubbles will be generated inside the water under air pressure. If there is no crack, no crack will appear. The control element inside the machine can monitor the changes in air pressure at all times, so that the testing equipment can test the battery casing stably and smoothly. After the test is completed, the solenoid valve and water pump can continue to operate, so that the water in the water tank can be pumped back to the water tank, facilitating the continuous use of water and reducing water consumption. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 This is an isometric view of the present invention;
[0021] Figure 2 This is a schematic plan view of the internal structure of the machine body of this utility model;
[0022] Figure 3 This is an exploded view of the connection structure between the card holder and the chassis of this utility model;
[0023] In the diagram: 1. Main body; 2. Water tank; 3. Electric push rod; 4. Card seat; 5. Conical tube seat; 6. Chassis; 7. Base; 8. Vertical cylinder seat; 9. Bottom ring seat; 10. Rubber seat; 11. Rubber pad; 12. Air pump body; 13. Valve seat; 14. T-pipe; 15. Hose; 16. Exhaust valve; 17. Hexagonal ring; 18. Slide rod; 19. Spring A; 20. Pull block; 21. Spring B; 22. Water tank; 23. Solenoid valve; 24. Water pump body; 25. Battery box. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] Please see Figure 1-3This utility model provides a technical solution: a cylindrical battery casing detection device, including a body 1, a water tank 2 on the outer wall surface of the body 1, a base 6 mounted on the bottom inner surface of the water tank 2, a base 7 screwed onto the top surface of the base 6, and multiple sets of bases 7, a vertical cylinder seat 8 slidably mounted on the top surface of the base 7, and a bottom ring seat 9 that fits with the battery casing on the top surface of the vertical cylinder seat 8, an electric push rod 3 corresponding to the bottom ring seat 9 mounted inside the body 1, and multiple sets of electric push rods 3, a retainer 4 mounted on the power output end of the electric push rod 3, and a tapered tube seat 5 that fits with the battery casing being engaged at the end of the retainer 4 near the vertical cylinder seat 8. A leak-proof rubber seat 10 is bonded to the side of the conical tube seat 5 near the bottom ring seat 9, and a rubber pad 11 is bonded to the side of the bottom ring seat 9 near the conical tube seat 5. An air pump body 12 is installed inside the body 1, and a valve seat 13 connected to the air outlet of the air pump body 12 is mounted on the outer wall surface of the body 1. There are multiple sets of valve seats 13. A three-way pipe 14 for guiding flow is mounted on the outer wall surface of the conical tube seat 5, and a flexible hose 15 for guiding flow is mounted between the three-way pipe 14 and the valve seat 13. A water tank 22 is mounted on the outer wall surface of the body 1, and a solenoid valve 23 is mounted on both the bottom outlet of the water tank 22 and the bottom outlet of the water trough 2. A water pump body 24 for pumping water is mounted between the two sets of solenoid valves 23.
[0026] When using the testing equipment to test the battery casing, the battery casing can be easily fitted with the bottom ring seat 9 in the water tank 2. Then, the electric push rod 3 inside the machine body 1 is operated. The operation of the electric push rod 3 facilitates the push of the cone tube seat 5 through the card seat 4, causing the cone tube seat 5 to descend and abut against the battery casing and press the battery casing, so that the battery casing can be confined in the water tank 2, which is convenient for subsequent testing. At the same time, the bottom ring seat 9 and the cone tube seat 5 are easy to disassemble and assemble, which is convenient for changing the specifications of the battery casing, thus facilitating the testing of different models of cylindrical batteries.
[0027] When the battery casing is confined in the water tank 2 under pressure, the water pump 24 and solenoid valve 23 inside the machine body 1 are activated. The solenoid valve 23 opens the closed pipe, and the water pump 24 draws water from the water tank 22, allowing water to enter the water tank 2 and submerge the confined battery casing. Then, the air pump 12 inside the machine body 1 is activated, allowing air pressure to be pumped into the hose 15 through the valve seat 13. The air pressure is then pumped into the confined battery casing through the three-way pipe 14 and the tapered tube seat 5. Since the upper and lower ends of the battery casing are respectively engaged with the bottom ring seat 9 and the tapered tube seat 5, Furthermore, the rubber pad 11 and rubber seat 10 facilitate the tightness of the fit between the battery casing and the tapered tube seat 5 and the bottom ring seat 9, reducing the possibility of leakage. If there is a crack on the surface of the battery casing, air bubbles will be generated inside the water under air pressure. If there is no crack, no crack will occur. The control element inside the machine body 1 can monitor the changes in air pressure at all times, so that the testing equipment can stably and smoothly test the battery casing. After the test is completed, the solenoid valve 23 and the water pump body 24 can continue to operate, so that the water source in the water tank 2 can be pumped back to the water tank 22, facilitating the continuous use of the water source and reducing water consumption.
[0028] like Figure 1 As shown, an exhaust valve 16 is fitted on one side of the outer circumference of the three-way pipe 14.
[0029] During use, after the airtightness test of the battery casing is completed, the exhaust valve 16 on the outer periphery of the three-way pipe 14 is activated to facilitate the release of air pressure inside the battery casing.
[0030] like Figure 1 As shown, a battery box 25 for providing power support is mounted on the outer wall surface of the body 1.
[0031] When in use, the battery box 25 on the outside of the body 1 provides power support for the operation of the body 1, and enables the testing equipment to be used without an external power supply.
[0032] like Figure 1 and Figure 3 As shown, a hexagonal ring 17 for support is screwed onto the outer wall surface of the tapered tube seat 5 and the outer wall surface of the bottom ring seat 9. A sliding rod 18 for limiting is slidably installed inside the hexagonal ring 17. A spring A19 for pushing the sliding rod 18 to move is assembled between the hexagonal ring 17 and the sliding rod 18. A pull block 20 for lifting is assembled at one end of the sliding rod 18 located on the outer periphery of the hexagonal ring 17.
[0033] When it is necessary to replace the tapered tube seat 5 and the bottom ring seat 9, the pull block 20 on the outer circumference of the hexagonal ring 17 of the tapered tube seat 5 and the bottom ring seat 9 can be pulled, so that the pull block 20 pulls the slide rod 18 to move, so that the end of the slide rod 18 that is inserted into the card seat 4 can be separated from it. Then the slide rod 18 can be easily retracted into the tapered tube seat 5, and then the tapered tube seat 5 can be pulled out. Then the three-way pipe 14 on the outer circumference of the tapered tube seat 5 can be removed to disassemble and replace the tapered tube seat 5. At the same time, the bottom ring seat 9 at the top of the vertical tube seat 8 is the same. After the replacement is completed, the spring A19 inside the hexagonal ring 17 can push the slide rod 18, so that one end of the slide rod 18 can be stably inserted into the card seat 4 or the vertical tube seat 8, so that the tapered tube seat 5 or the bottom ring seat 9 can be used more stably.
[0034] like Figure 3 As shown, a spring B21 for cushioning is installed between the base 7 and the vertical cylinder seat 8.
[0035] During use, spring B21 provides a certain buffering performance for the vertical cylinder seat 8 that is slidably mounted on the top of the base 7, which facilitates a certain protective performance when restricting the battery casing, so that the battery casing can be more stably limited and fixed.
[0036] The working principle and usage process of this utility model are as follows: In use, first, install the corresponding structural components in suitable positions. When using testing equipment to test the battery casing, it is easy to align the battery casing with the bottom ring seat 9 in the water tank 2. Then, the electric push rod 3 inside the machine body 1 operates. The operation of the electric push rod 3 facilitates the pushing of the tapered tube seat 5 through the locking seat 4, causing the tapered tube seat 5 to descend and abut against the top of the battery casing, pressing down on the battery casing. Under pressure, the battery casing causes the bottom ring seat 9 and the vertical cylinder seat 8 to descend. Simultaneously, the spring B21 between the vertical cylinder seat 8 and the base 7 provides a certain degree of cushioning. Subsequently, under pressure, the vertical cylinder seat 8 approaches the base 7 and supports the battery casing. This allows the battery casing to be confined within the water tank 2 for easier subsequent testing. Then, the water pump 24 and solenoid valve 23 inside the machine body 1 are activated. The solenoid valve 23 opens the closed pipe, while the water pump 24 draws water from the water tank 22, allowing water to enter the water tank 2 and submerge the confined battery casing. Next, the air pump 12 inside the machine body 1 is activated, allowing air pressure to be pumped through the valve seat 13 into the hose 15. The air pressure is then pumped through the hose 15, via the three-way pipe 14 and the conical tube seat 5, into the confined battery casing. Since the upper and lower ends of the battery casing respectively fit into the bottom ring seat 9 and the conical tube seat 5, and the rubber pad 11 and rubber seat 10 facilitate the improvement of the battery casing's performance... The tight fit between the battery casing, the conical tube seat 5, and the bottom ring seat 9 minimizes leakage. If there are cracks on the surface of the battery casing, air bubbles will form inside the water under pressure; otherwise, no cracks will appear. The control elements inside the machine body 1 continuously monitor changes in air pressure, ensuring stable and smooth testing of the battery casing. After testing, the solenoid valve 23 and water pump 24 continue to operate, facilitating the return of water from the water tank 2 to the water tank 22 for continuous water use and reduced water consumption. Furthermore, when replacing the conical tube seat 5 and the bottom ring seat 9, the outer hexapod ring 17 of the conical tube seat 5 and the bottom ring seat 9 can be pulled. The outer pull block 20 allows the pull block 20 to move the slide rod 18, so that the end of the slide rod 18 that is inserted into the card seat 4 can be separated from it. Then the slide rod 18 can be easily retracted into the tapered tube seat 5, and then the tapered tube seat 5 can be pulled out. Then the three-way pipe 14 on the outer periphery of the tapered tube seat 5 can be removed to disassemble and replace the tapered tube seat 5. At the same time, the bottom ring seat 9 at the top of the vertical tube seat 8 is the same, which is convenient for replacement according to the specifications of the battery shell. After the replacement is completed, the spring A19 inside the hexagonal ring 17 can push the slide rod 18, so that one end of the slide rod 18 can be stably inserted into the card seat 4 or the vertical tube seat 8, so that the tapered tube seat 5 or the bottom ring seat 9 can be used more stably, and the battery shell can be tested more stably.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A cylindrical battery case inspection apparatus characterized by comprising: The utility model provides a kind of water purifying device, including body (1), the outer wall surface of the body (1) is equipped with water tank (2), and the inner side bottom end surface of water tank (2) is equipped with bottom disc (6), the top end surface of the bottom disc (6) is screw-mounted with base (7), and base (7) has multiple groups, the top end surface of the base (7) is slidably installed with vertical cylinder seat (8), and the top end surface of vertical cylinder seat (8) is equipped with bottom ring seat (9) that is compatible with battery shell, the body (1) is equipped with electric push rod (3) corresponding with bottom ring seat (9), and electric push rod (3) has multiple groups, the power output end of the electric push rod (3) is equipped with card seat (4), and the end of card seat (4) near vertical cylinder seat (8) is connected with conical pipe seat (5) that is compatible with battery shell, the one side of the conical pipe seat (5) near bottom ring seat (9) is bonded with rubber seat (10) for leakage prevention, and the one side of bottom ring seat (9) near conical pipe seat (5) is bonded with rubber pad (11). The body (1) is provided with air pump body (12), and the outer wall surface of the body (1) is equipped with valve seat (13) communicated with the air outlet end of air pump body (12), and valve seat (13) has multiple groups, the outer wall surface of the conical pipe seat (5) is equipped with three-way pipe (14) for flow guide, and the hose (15) for flow guide is equipped between three-way pipe (14) and valve seat (13), the outer wall surface of the body (1) is equipped with water tank (22), and the water outlet end of the bottom of water tank (22) and the water outlet end of the bottom of water tank (2) are equipped with electromagnetic valve (23), and the water pump body (24) for pumping is equipped between two groups of electromagnetic valve (23).
2. The cylindrical battery case inspection apparatus according to claim 1, wherein The outer peripheral side end of the three-way pipe (14) is equipped with exhaust valve (16).
3. The cylindrical battery case inspection apparatus according to claim 1, wherein The outer wall surface of the body (1) is equipped with battery box (25) for providing power support.
4. The cylindrical battery case inspection apparatus according to claim 1, wherein The outer wall surface of the conical pipe seat (5) and the outer wall surface of bottom ring seat (9) are screw-mounted with hexagonal ring (17) for supporting, and the hexagonal ring (17) is slidably installed with slide rod (18) for limiting, the spring A (19) for pushing slide rod (18) displacement is equipped between the hexagonal ring (17) and slide rod (18), and the one end of the outer periphery of the hexagonal ring (17) is equipped with pull block (20) for lifting.
5. The cylindrical battery case inspection apparatus according to claim 1, wherein Spring B (21) for buffering is equipped between the base (7) and vertical cylinder seat (8).
Citation Information
Patent Citations
Cylindrical battery airtightness detection device
CN217953794U