Large-diameter quick connector for inlet and outlet of water chamber

Abstract

The utility model discloses a water chamber inlet and outlet large-caliber quick connector which comprises a threaded part, a positioning part, a sealing part and a clamping part which are sequentially connected, the threaded part is provided with external threads, the head end of the inserting part is inserted into the positioning part, a sealing ring is arranged between the sealing part and the inserting part, the clamping part is sleeved with a U-shaped clamping spring, openings are formed in the two sides of the clamping part respectively, and the sealing ring is connected with the U-shaped clamping spring. The U-shaped clamping spring comprises two clamping arms, and the clamping arms respectively penetrate through the openings and extend into the annular clamping grooves. The large-diameter quick connector for the water chamber inlet and outlet can be firmly and reliably connected with the water chamber inlet and outlet, the connector is effectively prevented from loosening in the working process, and the durable and stable connection between the water chamber inlet and outlet and the quick connector is ensured. The sealing ring can effectively play a sealing role for a long time, and liquid is effectively prevented from leaking from the connecting position. Due to the fact that sealing performance and firmness and reliability of connection can be guaranteed for a long time, the quick-plug connector can be manufactured to be large in diameter, and the high-flux design requirement of the water chamber is met.

Description

Technical Field

[0001] This utility model belongs to the field of quick-connect coupling technology, specifically relating to large-diameter quick-connect couplings for water chamber inlets and outlets. Background Technology

[0002] Automobiles are equipped with cooling systems to dissipate heat from the engine, and the water chamber is a key component of this system. The water chamber connects to water pipes via quick-connect fittings, enabling rapid installation and facilitating future disassembly and maintenance. However, existing quick-connect fittings for water chambers generally have small diameters and low throughput, making them suitable only for small cars. For large trucks and commercial vehicles, the current quick-connect fitting structure cannot achieve a large diameter while maintaining a tight seal. Therefore, improvements are needed to the existing quick-connect fittings for the water chamber inlet and outlet. Utility Model Content

[0003] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a large-diameter quick-connect fitting for the water chamber inlet and outlet, wherein the water chamber inlet and outlet include a plug-in part, an enlarged diameter part, and a connecting part arranged in sequence, the diameter of the enlarged diameter part gradually increases, the connecting part is integrally formed and connected to the water chamber, and the connecting part is provided with an annular groove, the quick-connect fitting includes a threaded part, a positioning part, a sealing part, and a snap-fit ​​part connected in sequence, the threaded part is provided with an external thread, the head end of the plug-in part is inserted into the interior of the positioning part, a sealing ring is provided between the sealing part and the plug-in part, a U-shaped snap-fit ​​spring is fitted on the snap-fit ​​part, and openings communicating with the interior of the snap-fit ​​part are provided on both sides of the snap-fit ​​part, the U-shaped snap-fit ​​spring includes two snap arms, the snap arms respectively pass through the openings and extend into the annular groove.

[0004] As a preferred embodiment of the above technical solution, the inner diameter of the sealing part is larger than the inner diameter of the positioning part, an inner limiting platform is formed between the sealing part and the positioning part, the inner diameter of the sealing part is smaller than the inner diameter of the snap-fit ​​part, an outer limiting platform is formed between the sealing part and the snap-fit ​​part, an inner limiting ring is provided inside the sealing part, the sealing ring is located between the inner limiting platform and the inner limiting ring, one end of the inner limiting ring is bent outward to form an outer limiting ring, and the diameter of the outer limiting ring is larger than the inner diameter of the sealing part.

[0005] As a preferred embodiment of the above technical solution, the inner side of the inner limiting ring is provided with an inclined surface that fits against the enlarged diameter portion.

[0006] As a preferred embodiment of the above technical solution, the limiting ring is provided with a plurality of hooks, and the locking part is provided with a plurality of slots, wherein the hooks and slots correspond to each other and are locked into the corresponding slots.

[0007] As a preferred embodiment of the above technical solution, an annular guide slope is provided on the side of the annular slot near the water chamber.

[0008] As a preferred embodiment of the above technical solution, the snap-fit ​​part is provided with a clamping groove, and the top two sides of the U-shaped snap spring are respectively located in the clamping groove.

[0009] The beneficial effects of this utility model are as follows: The large-diameter quick-connect fitting for the water chamber inlet and outlet of this utility model can form a firm and reliable connection with the water chamber inlet and outlet, effectively preventing the fitting from loosening due to vibration, water flow impact, and other factors during operation, ensuring a long-lasting and stable connection between the water chamber inlet and outlet and the quick-connect fitting. The sealing ring can effectively seal for a long time, effectively preventing liquid leakage from the connection. Because it can guarantee the sealing and the firmness and reliability of the connection for a long time, this quick-connect fitting can be manufactured in a large diameter to meet the high-flow design requirements of the water chamber. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the internal structure of a quick-connect connector;

[0012] Figure 3 This is a schematic diagram of the cross-sectional structure of a quick-connect connector. Detailed Implementation

[0013] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] like Figure 1-3As shown, the water chamber inlet and outlet are large-diameter quick-connect fittings. The water chamber inlet and outlet include a plug-in part 1, an enlarged diameter part 2, and a connecting part 3 arranged in sequence. The diameter of the enlarged diameter part 2 gradually increases. The connecting part 3 is integrally formed and connected to the water chamber 4. The connecting part 3 is provided with an annular groove 5. The quick-connect fitting includes a threaded part 6, a positioning part 7, a sealing part 8, and a snap-fit ​​part 9 connected in sequence. The threaded part 6 is provided with external threads. The head end of the plug-in part 1 is inserted into the positioning part 7. A sealing ring 10 is provided between the sealing part 8 and the plug-in part 1. A U-shaped snap ring 11 is fitted on the snap-fit ​​part 9. Openings 12 communicating with the inside of the snap-fit ​​part 9 are provided on both sides of the snap-fit ​​part 9. The U-shaped snap ring 11 includes two snap arms 13, which pass through the openings 12 and extend into the annular groove 5.

[0017] Furthermore, the inner diameter of the sealing part 8 is larger than the inner diameter of the positioning part 7, and an inner limiting platform 14 is formed between the sealing part 8 and the positioning part 7. The inner diameter of the sealing part 8 is smaller than the inner diameter of the snap-fit ​​part 9, and an outer limiting platform 15 is formed between the sealing part 8 and the snap-fit ​​part 9. An inner limiting ring 16 is provided inside the sealing part 8, and the sealing ring 10 is located between the inner limiting platform 14 and the inner limiting ring 16. One end of the inner limiting ring 16 is bent outward to form an outer limiting ring 17, and the diameter of the outer limiting ring 17 is larger than the inner diameter of the sealing part 8. The inner limiting ring 16 and the outer limiting ring 17 are integrally formed. The inner limiting platform 14 and the inner limiting ring 16 limit the sealing ring 10, preventing it from shifting or deforming under the impact of high-pressure water flow, thereby ensuring a good sealing effect.

[0018] Furthermore, the inner limiting ring 16 has an inclined surface 18 on its inner side that fits against the enlarged diameter portion 2.

[0019] Furthermore, the inner limiting ring 16 is provided with a plurality of hooks 19, and the locking part 9 is provided with a plurality of slots 20. The hooks 19 correspond to the slots 20 and are engaged in the corresponding slots 20. This prevents the inner limiting ring 16 from rotating arbitrarily during installation, ensuring the accuracy and stability of its limiting effect on the sealing ring 10.

[0020] Furthermore, an annular guide slope 21 is provided on the side of the annular groove 5 near the water chamber 4. The annular guide slope 21 serves as a guide when installing the U-shaped retaining spring, making it easier for the retaining arm to slide smoothly into the annular groove, reducing the installation difficulty, and also improving the accuracy and stability of the snap-fit.

[0021] Furthermore, the snap-fit ​​part 9 is provided with a clamping groove 22, and the top two sides of the U-shaped retaining spring 11 are respectively located in the clamping groove 22. The clamping groove 22 protects the U-shaped retaining spring 11 and prevents it from shaking or shifting after installation.

[0022] Both the water chamber and the quick-connect fittings are made of plastic. The quick-connect fittings meet VDA industry standards.

[0023] It is worth mentioning that the technical features such as the U-shaped retaining ring 11 and the sealing ring 10 involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial arrangement of these technical features can be adopted by conventional choices in the field, and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0024] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. A large-diameter quick-connect fitting for the inlet and outlet of a water chamber, characterized in that, The water chamber inlet and outlet include a plug-in part, an enlarged diameter part, and a connecting part arranged in sequence. The diameter of the enlarged diameter part gradually increases. The connecting part is integrally formed and connected to the water chamber. The connecting part is provided with an annular groove. The quick-connect fitting includes a threaded part, a positioning part, a sealing part, and a snap-fit ​​part connected in sequence. The threaded part is provided with external threads. The head end of the plug-in part is inserted into the positioning part. A sealing ring is provided between the sealing part and the plug-in part. A U-shaped snap-fit ​​spring is fitted on the snap-fit ​​part. Openings communicating with the inside of the snap-fit ​​part are provided on both sides of the snap-fit ​​part. The U-shaped snap-fit ​​spring includes two snap arms. The snap arms pass through the openings and extend into the annular groove.

2. The large-diameter quick-connect fitting for the water chamber inlet and outlet as described in claim 1, characterized in that, The inner diameter of the sealing part is larger than the inner diameter of the positioning part, and an inner limiting platform is formed between the sealing part and the positioning part. The inner diameter of the sealing part is smaller than the inner diameter of the snap-fit ​​part, and an outer limiting platform is formed between the sealing part and the snap-fit ​​part. An inner limiting ring is provided inside the sealing part, and the sealing ring is located between the inner limiting platform and the inner limiting ring. One end of the inner limiting ring is bent outward to form an outer limiting ring, and the diameter of the outer limiting ring is larger than the inner diameter of the sealing part.

3. The large-diameter quick-connect fitting for the water chamber inlet and outlet as described in claim 2, characterized in that, The inner limiting ring has an inclined surface on its inner side that fits into the expanded diameter portion.

4. The large-diameter quick-connect fitting for the water chamber inlet and outlet as described in claim 2, characterized in that, The limiting ring is provided with several hooks, and the locking part is provided with several slots. The hooks and slots correspond to each other and are locked into the corresponding slots.

5. The large-diameter quick-connect fitting for the water chamber inlet and outlet as described in claim 1, characterized in that, The annular slot has an annular guide slope on the side near the water chamber.

6. The large-diameter quick-connect fitting for the water chamber inlet and outlet as described in claim 1, characterized in that, The snap-fit ​​part is provided with a clamping groove, and the top two sides of the U-shaped snap spring are respectively located in the clamping groove.

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