Storage battery safety valve mounting device
By combining air pump injection and linear drive device, the identification and rejection of damaged safety valves can be realized, solving the problem that existing technologies cannot identify damaged safety valves and improving the detection efficiency of battery production lines.
Patent Information
- Application Number
- CN202520329564.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-27
AI Technical Summary
In the prior art, damaged safety valves and undamaged safety valves have the same shape after installation, making it impossible to identify batteries with damaged safety valves on the production line.
Gas is injected into the suction cylinder using an air pump, causing the safety valve to embed into the battery mounting hole under air pressure. Taking advantage of the poor airtightness of the damaged safety valve, which prevents it from being fully installed, the battery is clamped and fixed by a linear drive device and positioning components, thus enabling the identification of the damaged safety valve.
By identifying damaged safety valves through air pressure differences, qualified safety valves are ensured to be installed in place, making it easier to identify and reject batteries with damaged safety valves, thus improving the detection efficiency of the production line.
Smart Images

Figure CN223871488U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of storage battery manufacturing technology, and in particular to a storage battery safety valve installation device. Background Technology
[0002] The safety valve in a battery is a core component that ensures the safe operation of the battery. When the internal gas pressure of the battery rises abnormally (such as due to overcharging, short circuit, or high temperature), it automatically opens to release gas, preventing the battery from deforming, rupturing, or even exploding due to excessive pressure. For example, when excessive gas is generated in the later stages of charging of a lead-acid battery, the safety valve will release gas in time to prevent electrolyte loss due to violent gas emission. For lithium-ion batteries, the safety valve will disconnect the circuit when the gas pressure reaches a threshold. If the pressure continues to rise, it will rupture and release gas to prevent thermal runaway.
[0003] When installing, the safety valve should be installed vertically on the battery to ensure that the valve body fits tightly against the sealing surface of the battery casing. The existing installation method is to use negative pressure to adsorb and fix the safety valve, and then use a lifting device to press the safety valve into the mounting hole of the battery.
[0004] While this method ensures the safety valve is installed correctly, if the safety valve is damaged, it will appear identical to other undamaged safety valves after installation. This makes it impossible for personnel on the subsequent production line to detect whether the battery has a damaged safety valve. Utility Model Content
[0005] The main purpose of this utility model is to provide a battery safety valve installation device. The air pump injects gas into the suction cylinder, so that the safety valve is embedded into the safety valve installation hole of the battery under the action of air pressure. When the safety valve itself is damaged and its airtightness is poor, the damaged safety valve cannot be fully installed under the action of air pressure, thus making it easier for personnel to identify batteries with damaged safety valves.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A battery safety valve installation device includes a tracked conveyor with a positioning component for clamping the battery, and a rotating device. A lifting device is fixed to the rotating end of the rotating device, and a plurality of suction cylinders for adsorbing the safety valve are connected to the lifting end of the lifting device. The plurality of suction cylinders are connected to each other through connecting pipes. A vacuum pump is connected to the connecting pipes through a first pipe, and a first valve is provided on the first pipe. An air pump is also connected to the connecting pipes through a second pipe, and a second valve is connected to the second pipe.
[0008] Furthermore, the lifting device is a cylinder, and the bottom output shaft of the lifting device is fixedly connected to the connecting pipe.
[0009] Furthermore, the bottom of the suction cylinder is provided with an flared opening, and the flared opening and the inner wall of the suction cylinder form a step for a positioning safety valve.
[0010] Furthermore, the rotating device is a rotating robotic arm.
[0011] Furthermore, the positioning component includes a positioning plate and a moving plate respectively disposed on both sides of the conveying direction of the tracked conveyor, and a linear drive device is connected to the moving plate.
[0012] Furthermore, the positioning plate is fixed to the frame of the tracked conveyor, and a guide rod is also fixed to the frame of the tracked conveyor.
[0013] Furthermore, a baffle for intercepting the battery is fixed on the movable plate, and a guide plate for clamping the battery in cooperation with the baffle is fixed on the movable plate.
[0014] Furthermore, the linear drive device is a cylinder.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] The air pump of this invention injects gas into the suction cylinder, so that the safety valve is embedded into the safety valve mounting hole of the battery under the action of air pressure. When the safety valve itself is damaged and its airtightness is poor, the damaged safety valve cannot be fully installed under the action of air pressure, thus making it easier for personnel to identify the battery with a damaged safety valve.
[0017] The flared opening of this invention forms a step with the inner wall of the suction cylinder to position the safety valve, thereby determining the height position of the safety valve inside the suction cylinder. When the lifting device drives the suction cylinder to descend, the bottom of the safety valve can initially contact the safety valve mounting hole of the battery, ensuring that the qualified safety valve can be fixed to the battery under air pressure.
[0018] The linear drive device of this invention drives the moving plate to move, thereby enabling the moving plate and the positioning plate to cooperate in clamping and fixing the battery.
[0019] The baffle of this invention can intercept the battery, thereby enabling the moving plate and positioning plate to clamp and fix the battery in a designated position. Attached Figure Description
[0020] Figure 1 This is a top view of the battery safety valve installation device of this utility model.
[0021] Figure 2 This is a schematic diagram showing the connection of the rotating device, suction cylinder, lifting device, air pump, and vacuum pump in a battery safety valve installation device according to this utility model.
[0022] Figure 3 This is a cross-sectional schematic diagram of the suction cylinder and connecting pipe of a battery safety valve installation device according to this utility model.
[0023] In the diagram: 1. Tracked conveyor; 2. Guide rod; 3. Positioning assembly; 301. Positioning plate; 3011. Guide plate; 302. Moving plate; 3021. Baffle; 303. Linear drive device; 4. Lifting device; 5. Suction cylinder; 501. Flange; 6. Vacuum pump; 7. Air pump; 8. Second pipe; 9. Second valve; 10. First valve; 11. Connecting pipe; 12. First pipe; 13. Rotating device. 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] like Figure 1-3 As shown, a battery safety valve installation device includes a tracked conveyor 1, on which a positioning component 3 for clamping the battery is provided, and a rotating device 13. A lifting device 4 is fixed to the rotating end of the rotating device 13. A plurality of suction cylinders 5 for adsorbing the safety valve are connected to the lifting end of the lifting device 4. The plurality of suction cylinders 5 are connected to each other through a connecting pipe 11. A vacuum pump 6 is connected to the connecting pipe 11 through a first pipe 12. A first valve 10 is provided on the first pipe 12. An air pump 7 is also connected to the connecting pipe 11 through a second pipe 8. A second valve 9 is connected to the second pipe 8.
[0026] In this embodiment, such as Figure 1 and Figure 2As shown, the battery is conveyed on the tracked conveyor 1. During the conveying process, the positioning component 3 clamps the battery, thereby fixing its position. At this time, the rotating device 13 positions the suction cylinder 5 above the safety valve, while the lifting device 4 lowers the suction cylinder 5, allowing the safety valve to enter the suction cylinder 5. Subsequently, the vacuum pump 6 operates, removing the air from the suction cylinder 5, so that the suction cylinder 5 uses negative pressure to adhere and fix the safety valve. Then, the rotating device 13 drives the suction cylinder 5 to rotate, aligning the safety valve adhered by the suction cylinder 5 with the safety valve mounting hole of the battery. At this time, the lifting device 4 drives the suction cylinder 5... The vacuum pump 6 descends, causing the bottom of the safety valve to contact the safety valve mounting hole of the battery. Then, the vacuum pump 6 stops working, and the air pump 7 starts working. The air pump 7 injects gas into the suction cylinder 5, so that the safety valve is embedded into the safety valve mounting hole of the battery under the action of air pressure. However, if the safety valve itself is damaged and its airtightness is poor, the damaged safety valve cannot be fully installed under the action of air pressure (the installation height of the damaged safety valve is higher than that of the intact safety valve). In the subsequent inspection process, the improperly installed safety valve can be easily identified, so that personnel can easily remove the battery with the damaged safety valve from the production line.
[0027] When vacuum pump 6 is working, first valve 10 is open and second valve 9 is closed. When air pump 7 is working, first valve 10 is closed and second valve 9 is open.
[0028] When a safety valve is not installed properly, it will protrude upwards relative to other safety valves that are installed properly. Therefore, it can be detected using a sensor. This is existing technology and will not be elaborated on here.
[0029] Among them, the lifting device 4 is a cylinder, and the bottom output shaft of the lifting device 4 is fixedly connected to the connecting pipe 11.
[0030] Among them, such as Figure 3 As shown, the bottom of the suction cylinder 5 has a flared opening 501. The flared opening 501 and the inner wall of the suction cylinder 5 form a step for positioning the safety valve. When the suction cylinder 5 adsorbs the safety valve, the step surface of the safety valve will contact the step of the suction cylinder 5, thereby determining the height position of the safety valve relative to the suction cylinder 5. In this embodiment, after the safety valve is adsorbed by the suction cylinder 5, the part with the smaller bottom diameter will be located at the bottom of the suction cylinder 5. Thus, when the lifting device 4 drives the suction cylinder 5 to descend, the bottom of the safety valve can initially contact the safety valve mounting hole of the battery to ensure that the safety valve can be fixed on the battery.
[0031] Among them, the rotating device 13 is a robotic arm capable of rotation.
[0032] Among them, such as Figure 1As shown, the positioning component 3 includes a positioning plate 301 and a moving plate 302 respectively disposed on both sides of the conveying direction of the track conveyor 1. A linear drive device 303 is connected to the moving plate 302. The linear drive device 303 is a cylinder, and its driving end is fixedly connected to the moving plate 302. When the battery moves between the moving plate 302 and the positioning plate 301, the linear drive device 303 drives the moving plate 302 to move, so that the moving plate 302 and the positioning plate 301 cooperate to clamp and fix the battery.
[0033] Among them, such as Figure 1 As shown, the positioning plate 301 is fixed to the frame of the tracked conveyor 1. A guide rod 2 is also fixed to the frame of the tracked conveyor 1. A baffle 3021 for intercepting the battery is fixed to the moving plate 302. A guide plate 3011 that cooperates with the baffle 3021 to clamp the battery is also fixed to the moving plate 302. When the battery is conveyed on the tracked conveyor 1, it is guided by the guide rod 2, causing the side of the battery closest to the moving plate 302 to contact the baffle 3021 as the battery is conveyed, thereby intercepting the battery and preventing it from continuing to be conveyed. Then, the linear drive... The device 303 drives the moving plate 302 to move towards the positioning plate 301, so that the positioning plate 301 cooperates with the moving plate 302 to clamp and fix the battery. During this process, since the track conveyor 1 is working continuously, the battery will have a certain tilt angle, so that one end of the battery contacts the guide plate 3011. The surface of the guide plate 3011 that contacts the battery is inclined. As the distance between the positioning plate 301 and the moving plate 302 decreases, it is easier for the side of the battery away from the moving plate 302 to fit against the positioning plate 301.
[0034] Working principle: First, the battery is conveyed on the tracked conveyor 1. During the conveying process, it is guided by the guide rod 2, so that the side of the battery closest to the moving plate 302 is intercepted by the baffle 3021 as the battery is conveyed. At this time, the linear drive device 303 drives the moving plate 302 to move towards the positioning plate 301, so that the positioning plate 301 cooperates with the moving plate 302 to clamp and fix the battery. Next, the rotating device 13 changes the position of the suction cylinder 5, so that the suction cylinder 5 is above the safety valve. The lifting device 4 drives the suction cylinder 5 to descend, so that the safety valve enters the suction cylinder 5. Then, the vacuum pump 6 works to remove the air in the suction cylinder 5, so that the suction cylinder 5 uses negative pressure to adsorb and fix the safety valve. Then, the rotating device 13 drives the suction cylinder 5 to rotate, so that the safety valve adsorbed by the suction cylinder 5 is aligned with the safety valve mounting hole of the battery. At this time, the lifting device 4 drives the suction cylinder 5 to descend, so that the bottom of the safety valve contacts the safety valve mounting hole of the battery. Then, the vacuum pump 6 stops working and the air pump 7 starts working. The air pump 7 injects gas into the suction cylinder 5, so that the safety valve is embedded in the safety valve mounting hole of the battery under the action of air pressure. However, when the safety valve itself is damaged and its airtightness is poor, the damaged safety valve cannot be fully installed under the action of air pressure. In the subsequent inspection process, the safety valve that is not installed can be easily identified, so that personnel can remove the battery with the damaged safety valve from the production line.
[0035] 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 embodiments and descriptions in the specification 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 the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A battery safety valve installation device, comprising a tracked conveyor (1), wherein a positioning assembly (3) for clamping a battery is provided on the tracked conveyor (1), characterized in that: It also includes a rotating device (13), the rotating end of which is fixed with a lifting device (4), and the lifting end of the lifting device (4) is connected to a plurality of suction cylinders (5) for adsorbing safety valves. The plurality of suction cylinders (5) are connected to each other through a connecting pipe (11). The connecting pipe (11) is connected to a vacuum pump (6) through a first pipe (12). A first valve (10) is provided on the first pipe (12). The connecting pipe (11) is also connected to an air pump (7) through a second pipe (8). A second valve (9) is connected to the second pipe (8).
2. The battery safety valve installation device according to claim 1, characterized in that: The lifting device (4) is a cylinder, and the bottom output shaft of the lifting device (4) is fixedly connected to the connecting pipe (11).
3. The battery safety valve installation device according to claim 1, characterized in that: The bottom of the suction cylinder (5) is provided with a flared opening (501), and the flared opening (501) and the inner wall of the suction cylinder (5) form a step for a positioning safety valve.
4. The battery safety valve installation device according to claim 1, characterized in that: The rotating device (13) is a rotating robotic arm.
5. A battery safety valve mounting device according to any one of claims 1-4, characterized in that: The positioning component (3) includes a positioning plate (301) and a moving plate (302) respectively disposed on both sides of the conveying direction of the tracked conveyor (1), and a linear drive device (303) is connected to the moving plate (302).
6. A battery safety valve installation device according to claim 5, characterized in that: The positioning plate (301) is fixed on the frame of the tracked conveyor (1), and a guide rod (2) is also fixed on the frame of the tracked conveyor (1).
7. A battery safety valve installation device according to claim 5, characterized in that: A baffle (3021) for intercepting the battery is fixed on the movable plate (302), and a guide plate (3011) for clamping the battery in cooperation with the baffle (3021) is fixed on the movable plate (302).
8. A battery safety valve installation device according to claim 5, characterized in that: The linear drive device (303) is a cylinder.