Dustproof oil seal for vehicle-mounted lithium battery drain valve

Abstract

The application discloses a dustproof oil seal for a vehicle-mounted lithium battery drainage valve and relates to the technical field of oil seals. The application comprises an end cover, a plurality of mounting holes are equidistantly formed on the outer side of the end cover, a shell is mounted on the outer side of the end cover, a connecting block is mounted on the outer side of the end cover, a sealing gasket is mounted in the connecting block, and a positioning mechanism is symmetrically arranged on the outer side of the end cover. The position of the oil seal is fixed through the elastic potential energy release of the spring, without complicated operation and long-time hand force, so that the physical exertion of workers is reduced.

Description

Technical Field

[0001] This application relates to the field of oil seal technology, and in particular to a dustproof oil seal for a drain valve of an on-board lithium battery. Background Technology

[0002] The vehicle-mounted lithium battery drain valve is a device used to remove water accumulated inside the vehicle-mounted lithium battery pack. The drain valve can drain the water in time, which helps to keep the battery pack dry, reduce corrosion, and improve the insulation performance of high-voltage components.

[0003] A dustproof oil seal mentioned in an existing Chinese patent (authorization announcement number: CN216843110U) can achieve a primary seal between the oil seal shell and the rubber oil seal by installing a rubber oil seal component inside the oil seal shell, aligning the rubber sealing gasket with the annular seat, and then pressing the rubber sealing gasket and the annular seat with a first sealing component. At the same time, a second sealing component performs a secondary seal inside the oil seal shell, further sealing the rubber oil seal component within the oil seal shell. The primary and secondary seals are achieved by compression, resulting in a double-layer seal, preventing gaps between the oil seal shell and the rubber oil seal component, thereby effectively improving the sealing effect and preventing impurities from entering and liquid leakage.

[0004] The existing method of installing oil seals on drain valves mostly involves accurately placing the dustproof oil seal in the installation groove of the drain valve and then fixing it with bolts. Although this method is simple and easy, it requires one hand to install and the other hand to fix the oil seal, which is inconvenient and increases the workload of the workers. Utility Model Content

[0005] The purpose of this application is to solve the problem that installation requires one hand to install and the other hand to fix the oil seal, which is inconvenient. This application provides a dustproof oil seal for a vehicle-mounted lithium battery drain valve.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution: A dustproof oil seal for a vehicle-mounted lithium battery drain valve includes an end cap, a plurality of mounting holes equally spaced on the outer side of the end cap, a housing mounted on the outer side of the end cap, a connecting block mounted on the outer side of the end cap, a sealing gasket mounted inside the connecting block, and a positioning mechanism symmetrically arranged on the outer side of the end cap.

[0007] By adopting the above technical solution, the housing is installed on the outside of the end cover, so that the housing and the end cover fit tightly. The end cover is placed in the installation position of the vehicle lithium battery drain valve. Then, the mounting holes are used for initial fixation to ensure that the end cover and the center of the drain valve are aligned. During use, the sealing gasket completely covers the contact part between the connecting block and the drain valve, thereby achieving a sealing effect. The positioning mechanism makes it convenient for workers to install the oil seal and the drain valve.

[0008] Furthermore, the positioning mechanism includes a connecting frame symmetrically and fixedly connected to the outside of the end cap. A slot is provided on the inner side of the connecting frame, and a connecting seat is slidably disposed on the inner side of the slot. The top of the connecting seat is fixedly connected to the drain valve. A spring is fixedly connected to the inner side of the slot. A moving plate is fixedly connected to one end of the spring. A locking block is fixedly connected to the outer side of the moving plate. A locking groove is provided on the outer side of the connecting seat, and the locking block is engaged with the locking groove.

[0009] By adopting the above technical solution, when the locking groove moves to the position of the locking block, the elastic potential energy of the spring is released, so that the locking block and the locking groove are engaged, thereby positioning the connecting frame and fixing the position of the oil seal.

[0010] Furthermore, both the locking block and the locking groove are configured as hemispherical, and the locking block and the locking groove are adapted to each other.

[0011] By adopting the above technical solution, the locking block moves inside the locking groove under the sliding action of the arc surface, thereby releasing the locking block from the locking groove.

[0012] Furthermore, the inner side of the empty slot is symmetrically provided with sliding grooves, and the outer side of the movable plate is symmetrically fixedly connected with sliders, which are slidably connected to the sliding grooves.

[0013] By adopting the above technical solution, the slider and the groove provide guidance for the moving plate, so that the moving plate can maintain the correct motion trajectory when moving.

[0014] Furthermore, a sealing strip is provided between the connecting block and the sealing gasket, and the two ends of the sealing strip abut against the sealing gasket and the connecting block, respectively.

[0015] By adopting the above technical solution, the material of the sealing strip is water-swellable waterproof adhesive. Due to the property of the sealing strip, it can swell when exposed to water and effectively play a waterproof role.

[0016] Furthermore, several sealing strips are installed on the outer side of the sealing strip one, and both the sealing strip one and the sealing strip two are set in an arc shape.

[0017] By adopting the above technical solution, the arc design of sealing strip one and sealing strip two can better adapt to the edge shape.

[0018] In summary, this application includes at least one of the following beneficial effects; 1. In this application, the position of the oil seal is fixed by releasing the elastic potential energy of the spring during installation, eliminating the need for complicated operations and prolonged hand exertion, reducing the physical exertion of workers, lowering labor intensity, and making the installation work easier and more convenient.

[0019] 2. In this application, when the drain valve is in operation, the sealing strip is made of water-swellable sealant. Due to the property of the sealing strip, it can expand when it comes into contact with water, which can effectively play a water-stopping role and reduce the risk of liquid entering the drain valve. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the first three-dimensional structure of the oil seal in this application; Figure 2 This is a three-dimensional structural diagram of the oil seal explosion in this application; Figure 3 This is a schematic diagram of the cross-sectional structure of the connection in this application; Figure 4 This application Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This application Figure 2 Enlarged structural diagram at point B.

[0021] Explanation of reference numerals in the attached figures: 1. End cap; 2. Mounting hole; 3. Housing; 4. Connecting block; 5. Sealing gasket; 6. Connecting seat; 7. Connecting frame; 8. Hollow groove; 9. Spring; 10. Moving plate; 11. Engaging block; 12. Engaging groove; 13. Sliding groove; 15. Sealing strip one; 16. Sealing strip two. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0023] This application discloses a dustproof oil seal for a vehicle-mounted lithium battery drain valve.

[0024] Reference Figures 1 to 3 A dustproof oil seal for a vehicle-mounted lithium battery drain valve includes an end cap 1. Several mounting holes 2 are equally spaced on the outer side of the end cap 1. A housing 3 is installed on the outer side of the end cap 1. A connecting block 4 is installed on the outer side of the end cap 1. A sealing gasket 5 is installed inside the connecting block 4. A positioning mechanism is symmetrically arranged on the outer side of the end cap 1.

[0025] When installing the oil seal, first install the housing 3 on the outside of the end cap 1, so that the housing 3 fits tightly with the end cap 1. Place the end cap 1 at the installation position of the vehicle lithium battery drain valve, and then use the mounting hole 2 for initial fixation to ensure that the end cap 1 is aligned with the center of the drain valve. During use, the sealing gasket 5 completely covers the contact area between the connecting block 4 and the drain valve, thereby achieving a sealing effect. The positioning mechanism makes it convenient for workers to install the oil seal and the drain valve.

[0026] Reference Figure 3 and Figure 4The positioning mechanism includes a connecting frame 7 symmetrically and fixedly connected to the outside of the end cap 1. A slot 8 is provided on the inner side of the connecting frame 7. A connecting seat 6 is slidably arranged on the inner side of the slot 8. The top of the connecting seat 6 is fixedly connected to the drain valve. A spring 9 is fixedly connected to the inner side of the slot 8. A moving plate 10 is fixedly connected to one end of the spring 9. A locking block 11 is fixedly connected to the outer side of the moving plate 10. A locking groove 12 is provided on the outer side of the connecting seat 6. The locking block 11 and the locking groove 12 are locked together.

[0027] The locking block 11 and the locking groove 12 are both set as hemispherical, and the locking block 11 and the locking groove 12 are adapted to each other.

[0028] In addition, the inner side of the empty slot 8 is symmetrically provided with sliding grooves 13, and the outer side of the movable plate 10 is symmetrically fixedly connected with sliders, which are slidably connected to the sliding grooves 13.

[0029] When installing the oil seal, first move the end cap 1. The movement of the end cap 1 moves the connecting frame 7, which in turn moves the connecting seat 6 into the connecting frame 7. At this time, the connecting seat 6 will abut against the locking block 11, causing the locking block 11 to move. The movement of the locking block 11 moves the moving plate 10, which compresses the spring 9, generating elastic potential energy. When the locking groove 12 moves to the position of the locking block 11, the elastic potential energy of the spring 9 is released, allowing the locking block 11 to engage with the locking groove 12, thereby positioning the connecting frame 7 and fixing the position of the oil seal. This eliminates the need for complicated operations and prolonged hand exertion, reducing the physical exertion of workers, lowering labor intensity, and making the installation work easier and more convenient.

[0030] When the oil seal needs to be removed, both the locking block 11 and the locking groove 12 are set to be hemispherical. Under the sliding action of the arc surface, the locking block 11 moves inside the locking groove 12, thereby releasing the locking block 11 from the locking groove 12 and removing the oil seal.

[0031] When the movable plate 10 moves, the slider and the groove 13 provide guidance for the movable plate 10, so that the movable plate 10 can maintain the correct motion trajectory when moving.

[0032] Reference Figure 2 and Figure 5 A sealing strip 15 is provided between the connecting block 4 and the sealing gasket 5, and the two ends of the sealing strip 15 abut against the sealing gasket 5 and the connecting block 4 respectively.

[0033] Among them, several sealing strips 16 are installed on the outside of sealing strip 15, and both sealing strip 15 and sealing strip 16 are set in an arc shape.

[0034] When the drain valve is in operation, the sealing strip 15 is made of water-swellable sealant. Due to the property of sealing strip 15, it can expand when it comes into contact with water, which can effectively play a water-stopping role and reduce the risk of liquid entering the drain valve.

[0035] When the drain valve is in operation, the sealing strip 16 is also made of water-swellable sealant. The arc design of sealing strip 15 and sealing strip 16 can better adapt to the edge shape, forming a good sealing effect and further improving the sealing effect.

[0036] Working principle: Install the housing 3 on the outside of the end cap 1, so that the housing 3 and the end cap 1 fit tightly. Place the end cap 1 at the installation position of the vehicle lithium battery drain valve, and then use the mounting hole 2 for initial fixation to ensure that the end cap 1 and the center of the drain valve are aligned. During use, the sealing gasket 5 completely covers the contact part between the connecting block 4 and the drain valve, thereby achieving a sealing effect. When the engaging groove 12 moves to the position of the engaging block 11, the elastic potential energy of the spring 9 is released, so that the engaging block 11 and the engaging groove 12 are engaged, thereby positioning the connecting frame 7 and fixing the position of the oil seal. No complicated operation or long-term manual force is required.

Claims

1. A dustproof oil seal for a vehicle-mounted lithium battery drain valve, comprising an end cap (1), characterized in that: The end cap (1) has several mounting holes (2) evenly spaced on its outer side. A housing (3) is installed on the outer side of the end cap (1). A connecting block (4) is installed on the outer side of the end cap (1). A sealing gasket (5) is installed inside the connecting block (4). A positioning mechanism is symmetrically arranged on the outer side of the end cap (1). The positioning mechanism includes a connecting frame (7) symmetrically fixedly connected to the outer side of the end cap (1). A slot (8) is opened on the inner side of the connecting frame (7). A connecting seat (6) is slidably arranged on the inner side of the slot (8). The top of the connecting seat (6) is fixedly connected to a drain valve. A spring (9) is fixedly connected to the inner side of the slot (8). A moving plate (10) is fixedly connected to one end of the spring (9). A locking block (11) is fixedly connected to the outer side of the moving plate (10). The connecting seat (6) has a locking groove (12) on its outer side, and the locking block (11) is engaged with the locking groove (12); the locking block (11) and the locking groove (12) are both hemispherical, and the locking block (11) and the locking groove (12) are adapted to each other; the inner side of the empty groove (8) is symmetrically provided with a sliding groove (13), and the outer side of the moving plate (10) is symmetrically fixedly connected with a slider, and the slider is slidably connected with the sliding groove (13); a sealing strip (15) is provided between the connecting block (4) and the sealing gasket (5), and the two ends of the sealing strip (15) abut against the sealing gasket (5) and the connecting block (4) respectively; a number of sealing strips (16) are installed on the outer side of the sealing strip (15), and the sealing strips (15) and the sealing strips (16) are both arc-shaped.

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