Automobile expansion water bottle interface

Abstract

The utility model discloses an automobile expansion water kettle interface, including threaded neck and cover, threaded neck lower extreme outside is equipped with reinforcing ring no.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an automotive expansion tank interface. Background Technology

[0002] The automotive expansion tank, also known as an auxiliary water tank or compensating water tank, is an important component of the modern automotive cooling system. It is a semi-transparent container made of high-temperature and pressure-resistant plastic, and is usually connected to the top of the radiator and the engine via pipes.

[0003] Its core function is "buffering and compensation." When the engine is running, the coolant expands due to heat, and excess liquid and generated vapor enter the expansion tank through the overflow pipe for storage. When the engine is turned off and cooled, the coolant contracts, creating a negative pressure (vacuum) in the system. The coolant in the tank is then drawn back into the main system, thus keeping the system at a full level and effectively preventing coolant loss and air ingress.

[0004] The expansion tank in a car is threaded with a pressure cap to maintain a specific system pressure, raise the boiling point of the coolant, and enhance heat dissipation efficiency. However, in actual use, the pressure cap is just a simple mechanical component, and the pressure release process is a blind operation. During maintenance, repair personnel cannot determine whether the pressure cap is functioning properly; this presents limitations and room for technical improvement. Utility Model Content

[0005] This invention aims to address the limitations and room for improvement of the aforementioned pressure cap by providing an automotive expansion tank interface.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a car expansion tank interface, including a threaded neck and a cover; a first reinforcing ring is provided on the outer side of the lower end of the threaded neck, a second reinforcing ring is provided on the outer side of the lower end of the cover, and a sealing structure is provided between the first reinforcing ring and the second reinforcing ring;

[0007] A top plate is connected to the top surface of the inner body of the cover, and a pressure spring is provided under the top plate. A pressure valve is provided at the lower end of the pressure spring. A sealing ring is provided on the top surface of the inner body of the cover and on the outside of the top plate.

[0008] The cover is provided with a visible structure; the visible structure includes a circular through groove on the top of the cover, a transparent visible plate is fixedly connected in the circular through groove, and a water-sensitive color-changing sheet is provided on the bottom surface of the transparent visible plate.

[0009] Furthermore, the outer side of the cover is provided with several rectangular strips along the circumference, and the outer sides of the rectangular strips are all rounded.

[0010] Furthermore, the sealing structure includes several annular sealing strips provided below the second reinforcing ring, and the first reinforcing ring is provided with a sealing groove that can accommodate the sealing strips.

[0011] Furthermore, both the sealing strip and the sealing ring are made of fluororubber; the outer side of the sealing ring is coated with an anti-adhesion coating.

[0012] Furthermore, the water-sensitive color-changing sheet uses water-sensitive paper as a base, and the coating contains a chemical substance that changes color when it comes into contact with water.

[0013] Furthermore, a temperature sensor is fixedly attached to the outside of the cover.

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] By setting up a transparent viewing panel and a water-sensitive color-changing sheet, it is possible to observe whether the cover is operating normally by observing the color change of the water-sensitive color-changing sheet when high-temperature gas is released during maintenance.

[0016] The temperature sensor can help monitor the temperature change of the cover, and can promptly detect the leakage of the pressure cover.

[0017] It features a sealing structure, with both the sealing structure and the sealing strip made of fluororubber for enhanced durability. It also incorporates an anti-stick coating to prevent seizing with the threaded neck over time. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the threaded neck and cap structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the disassembled cover structure of this utility model.

[0021] As shown in the figure: 1. Threaded neck, 2. Cover body, 3. Reinforcing ring one, 4. Reinforcing ring two, 5. Rectangular strip, 6. Sealing strip, 7. Sealing groove, 8. Top plate, 9. Pressure spring, 10. Pressure valve, 11. Sealing ring, 12. Circular through groove, 13. Transparent viewing plate, 14. Water-sensitive color-changing sheet, 15. Temperature sensor. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] Example 1, in conjunction with Appendix Figure 1 , 2 A car expansion tank connector includes a threaded neck 1 and a cover 2. The cover 2 is securely connected to the threaded neck via threads, which can prevent the cover 2 from loosening due to long-term airflow impact. Several rectangular strips 5 are provided on the outer side of the cover 2 along the circumference. The outer side of the rectangular strips 5 are all rounded. The rectangular strips 5 increase the friction when twisting the cover 2, making it less likely to slip off.

[0024] Combined with appendix Figure 1 , 2 A reinforcing ring 3 is provided on the outer side of the lower end of the threaded neck 1, and a reinforcing ring 4 is provided on the outer side of the lower end of the cover 2. A sealing structure is provided between the reinforcing ring 3 and the reinforcing ring 4. Specifically, the sealing structure includes several annular sealing strips 6 provided below the reinforcing ring 4, and a sealing groove 7 on the reinforcing ring 3 that can accommodate the sealing strips 6. When the cover 2 is rotated and connected on the outer side of the threaded neck 1, the sealing strips 6 gradually enter the corresponding sealing grooves 7, thereby improving the sealing performance between the cover 2 and the threaded neck 1.

[0025] Combined with appendix Figure 3 The top surface of the cover 2 is connected to a top plate 8, and a pressure spring 9 is provided below the top plate 8. A pressure valve 10 is provided at the lower end of the pressure spring 9. In the prior art, when the pressure reaches the critical value, the valve plate of the pressure valve 10 will automatically open to release the pressure.

[0026] A sealing ring 11 is provided on the inner top surface of the cover 2 and on the outer side of the top plate 8; both the sealing strip 6 and the sealing ring 11 are made of fluororubber; the outer side of the sealing ring 11 is coated with an anti-adhesion coating; fluororubber has better high temperature resistance and coolant corrosion resistance, thus making it more durable and longer-lasting; in addition, the anti-adhesion coating can be made of PTFE to prevent the cover 2 from seizing on the outer side of the threaded neck after long-term use, thus facilitating disassembly.

[0027] Combined with appendix Figure 1 , 2 3. The cover 2 is provided with a visible structure; specifically, the visible structure includes a circular through groove 12 on the cover 2, a transparent visible plate 13 fixed in the circular through groove 12, and a water-sensitive color-changing sheet 14 on the bottom surface of the transparent visible plate 13. The water-sensitive color-changing sheet 14 is based on water-sensitive paper and contains a chemical substance that changes color when it comes into contact with water. When the cooling system is working normally, the coolant temperature is between 90℃ and 100℃+. When the system pressure is too high and reaches the pressure relief value of the pressure valve 10, the main components released are high-temperature water vapor, air, and a small amount of coolant droplets. These mixed gases first enter the inside of the cover 2, and the water-sensitive color-changing sheet 14 at the top of the cover 2 changes color when it comes into contact with water vapor. The transparent visible plate 13 at its top is unobstructed, and maintenance personnel can immediately observe that gas is leaking out, so they can quickly determine that the cover 2 can still release pressure normally.

[0028] Based on the above, a temperature sensor 15 is also fixedly connected to the outside of the cover 2. In actual use, the temperature change can be sent to the vehicle's infotainment system through the vehicle bus and other means to achieve routine monitoring and proactive early warning, detect problems in time, and prevent the malfunction from escalating.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An interface of an automotive expansion water kettle, characterized in that: It includes a threaded neck (1) and a cover body (2); a first reinforcing ring (3) is provided on the outer side of the lower end of the threaded neck (1), a second reinforcing ring (4) is provided on the outer side of the lower end of the cover body (2), and a sealing structure is provided between the first reinforcing ring (3) and the second reinforcing ring (4). A top plate (8) is connected to the inner top surface of the cover body (2), a compression spring (9) is provided below the top plate (8), and a pressure valve (10) is provided at the lower end of the compression spring (9); a sealing ring (11) is provided on the inner top surface of the cover body (2) and outside the top plate (8). A visual structure is provided on the cover body (2); the visual structure includes a circular through groove (12) provided on the upper surface of the cover body (2), a transparent visual plate (13) is fixedly connected in the circular through groove (12), and a water-sensitive color-changing sheet (14) is provided on the bottom surface of the transparent visual plate (13).

2. The automotive expansion water tank interface according to claim 1, characterized in that: A plurality of rectangular strips (5) are provided on the outer side of the cover body (2) along the circumference, and the outer sides of the rectangular strips (5) are all rounded.

3. The automotive expansion water tank interface according to claim 1, characterized in that: The sealing structure includes a plurality of annular sealing strips (6) provided below the second reinforcing ring (4), and a sealing groove (7) capable of accommodating the sealing strips (6) is provided on the first reinforcing ring (3).

4. The automotive expansion water tank interface according to claim 3, wherein: Both the sealing strip (6) and the sealing ring (11) are fluororubber; an anti-adhesion coating is applied on the outer side of the sealing ring (11).

5. The interface of an automotive expansion water kettle according to claim 1, wherein: The water-sensitive color-changing sheet (14) uses water-sensitive paper as the base, and the coating contains chemical substances that change color when encountering water.

6. The automotive expansion water tank interface according to claim 1, wherein: A temperature sensor (15) is fixedly connected to the outer side of the cover body (2).

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