Automobile nylon pipe joint

Abstract

The utility model discloses a kind of automobile nylon pipe joints, belong to automobile accessory technical field, including first connecting sleeve and second connecting sleeve, the first end of first connecting sleeve is provided with first quick -connect component, the first end of first quick -connect component is provided with second quick -connect component, the first end of second quick -connect component is provided with second connecting sleeve;The first quick -connect component includes first pipe body, first clamping groove is set on the inner wall surface of first pipe body, first clamping piece and second clamping piece are set in first clamping groove, the first end of first clamping piece and second clamping piece is evenly provided with connecting rod, the bottom surface of first clamping groove is connected with connecting head by the one end of connecting rod, spring is set on the connecting rod;Second quick -connect component includes second pipe body, annular groove is set on the outer wall surface of second pipe body, when clamping, first clamping piece and second clamping piece are all in annular groove. It can guarantee the stability of nylon pipe joint butt joint, avoid appearing to loosen, and then guarantee work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to an automotive nylon tube connector. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] In the automotive industry, nylon tubing has widely replaced traditional metal pipes due to its advantages such as low cost, lightweight, and strong corrosion resistance, becoming a core connector in critical components such as the fuel supply system and braking system. As an important part of the nylon tubing system, the connection stability of pipe fittings directly affects the overall safety and reliability of the vehicle's operation.

[0004] Currently, automotive nylon hose connections mostly utilize the compression fitting structure of traditional metal pipes. This type of structure requires specialized tools such as wrenches during assembly, making the process cumbersome and inefficient, increasing installation and maintenance costs. Furthermore, during long-term use, factors such as vibrations during vehicle operation, fluctuations in fluid pressure within the pipes, and changes in ambient temperature can easily cause the connection between the fitting and the nylon hose to loosen, or even detach. Once detachment occurs, it not only leads to leaks of fluids such as oil and brake fluid, resulting in resource waste and environmental pollution, but can also cause serious safety accidents such as fuel supply interruption and brake failure, directly threatening the lives of drivers and passengers. In addition, while some existing fittings incorporate a single anti-loosening structure, their effectiveness is limited and they cannot withstand the combined effects of multiple external forces under complex operating conditions, meaning that the risk of detachment still exists after prolonged use. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides an automotive nylon pipe connector that ensures the stability of the nylon pipe connector after mating, preventing loosening and thus guaranteeing work efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A nylon hose fitting for automobiles includes a first connecting sleeve and a second connecting sleeve. One end of the first connecting sleeve is provided with a first quick-connect component, one end of the first quick-connect component is provided with a second quick-connect component, and one end of the second quick-connect component is provided with a second connecting sleeve. The first quick-connect assembly includes a first tube body, a first snap-fit ​​groove is provided on the inner wall surface of the first tube body, a first snap-fit ​​component and a second snap-fit ​​component are provided in the first snap-fit ​​groove, and a connecting rod is provided at one end of each of the first snap-fit ​​component and the second snap-fit ​​component. One end of the connecting rod passes through the bottom surface of the first snap-fit ​​groove and is connected to the connector. A spring is sleeved on the connecting rod. The second quick-connect assembly includes a second tube body, an annular groove is provided on the outer wall surface of the second tube body, and the first snap-fit ​​component and the second snap-fit ​​component are both located in the annular groove when snapped together. As a further technical solution, a plurality of third snap-fit ​​components are spaced apart on the inner wall surface of the first tube, and a plurality of fourth snap-fit ​​components are spaced apart on the outer wall surface of the second tube, wherein the number of third snap-fit ​​components and fourth snap-fit ​​components is the same.

[0007] As a further technical solution, the side of the fourth snap-fit ​​component is provided with a second snap-fit ​​groove, the bottom surface of the second snap-fit ​​groove is an arc-shaped surface, and the end face of the third snap-fit ​​component is an arc-shaped surface.

[0008] As a further technical solution, the third snap-fit ​​component is located in the second snap-fit ​​groove when in the snap-fit ​​state, and the third snap-fit ​​component and the fourth snap-fit ​​component are detachably connected.

[0009] As a further technical solution, one end of the first snap-fit ​​component and the second snap-fit ​​component are fixedly connected to the corresponding connecting rod, and the other end of the connecting rod is fixedly connected to the connector.

[0010] As a further technical solution, one end of the spring is fixedly connected to the connecting rod, and the other end of the spring is fixedly connected to the bottom surface of the first snap-fit ​​groove.

[0011] As a further technical solution, both the first and second snap-fit ​​components are semi-circular ring structures, and the first snap-fit ​​groove is a circular ring groove. During installation, the first and second snap-fit ​​components are located within the first snap-fit ​​groove.

[0012] As a further technical solution, a sealing gasket layer is provided on the outer wall surface of the second tube, and the sealing gasket layer is fixedly connected to the second tube.

[0013] As a further technical solution, sealing rings are provided on the inner wall surfaces of the first connecting sleeve and the second connecting sleeve, and several sealing rings are provided at intervals.

[0014] As a further technical solution, the ends of the first connecting sleeve and the second connecting sleeve are connected to the nylon tube.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are: This invention features a dual locking structure. The first locking is achieved through the cooperation of a third and a fourth locking component. The third locking component engages with the second locking groove on the side of the fourth locking component, utilizing the curved surface design to enhance the tightness of the engagement. The second locking relies on the engagement of the first and second locking components with an annular groove. The semi-circular locking component is tightly embedded in the annular groove under the elastic action of a spring, forming a bidirectional limiting effect. This dual locking structure works together to resist the influence of multiple external forces, including vibrations during vehicle operation, fluctuations in pipeline fluid pressure, and changes in ambient temperature, preventing loosening at the connection and ensuring the stable operation of critical components such as the vehicle's fuel supply system and braking system. The quick-connect structure requires no additional tools; installation can be completed simply by mating and rotating, significantly simplifying the assembly process and improving installation and maintenance efficiency. Attached Figure Description

[0016] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0017] Figure 1 This is a structural diagram of the automotive nylon pipe connector of this utility model; Figure 2 This is a cross-sectional view of the automotive nylon pipe connector of this utility model; Figure 3 This is a partially enlarged view of the automotive nylon pipe connector of this utility model; In the figure: 1. First connecting sleeve; 2. First quick-connect assembly; 21. First tube body; 22. First snap-fit ​​element; 23. Second snap-fit ​​element; 24. Third snap-fit ​​element; 25. First snap-fit ​​groove; 26. Connecting rod; 27. Connector head; 28. Spring; 3. Second quick-connect assembly; 31. Second tube body; 32. Annular groove; 33. Fourth snap-fit ​​element; 34. Second snap-fit ​​groove; 35. Sealing gasket; 4. Second connecting sleeve. Detailed Implementation

[0018] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0019] Currently, automotive nylon hose connections mostly utilize the compression fitting structure of traditional metal pipes. This type of structure requires specialized tools such as wrenches during assembly, making the process cumbersome and inefficient, increasing installation and maintenance costs. Furthermore, during long-term use, factors such as vibrations during vehicle operation, fluctuations in fluid pressure within the pipes, and changes in ambient temperature can easily cause the connection between the fitting and the nylon hose to loosen, or even detach. Once detachment occurs, it not only leads to leaks of fluids such as oil and brake fluid, resulting in resource waste and environmental pollution, but can also cause serious safety accidents such as fuel supply interruption and brake failure, directly threatening the lives of drivers and passengers. In addition, while some existing fittings incorporate a single anti-loosening structure, their effectiveness is limited and they cannot withstand the combined effects of multiple external forces under complex operating conditions, meaning that the risk of detachment still exists after prolonged use.

[0020] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses an automotive nylon tube connector, such as... Figure 1 As shown, it includes a first connecting sleeve 1 and a second connecting sleeve 4. A first quick-connect component 2 is provided at one end of the first connecting sleeve 1, a second quick-connect component 3 is provided at one end of the first quick-connect component 2, and a second connecting sleeve 4 is provided at one end of the second quick-connect component 3. like Figure 2 and Figure 3 As shown, the first quick-connect assembly 2 includes a first tube 21, with a first snap-fit ​​groove 25 on the inner wall of the first tube 21. A first snap-fit ​​component 22 and a second snap-fit ​​component 23 are disposed in the first snap-fit ​​groove 25. A connecting rod 26 is provided at one end of each of the first snap-fit ​​component 22 and the second snap-fit ​​component 23. One end of the connecting rod 26 passes through the bottom surface of the first snap-fit ​​groove 25 and is connected to the connector 27. A spring 28 is sleeved on the connecting rod 26. The second quick-connect assembly 3 includes a second tube 31, with an annular groove 32 on the outer wall of the second tube 31. When snapped together, both the first snap-fit ​​component 22 and the second snap-fit ​​component 23 are located in the annular groove 32. Specifically, a double-locking structure is provided. The first locking is achieved by the cooperation of the third locking member 24 and the fourth locking member 33. The third locking member 24 is engaged in the second locking groove 34 on the side of the fourth locking member 33, and the fitting design of the arc surface enhances the tightness of the engagement. The second locking is achieved by the engagement of the first locking member 22, the second locking member 23, and the annular groove 32. The semi-circular locking member is tightly embedded in the annular groove 32 under the elastic action of the spring 28, forming a bidirectional limit. The double-locking structure works together to resist the influence of multiple external forces such as vibration during vehicle operation, fluctuations in pipeline fluid pressure, and changes in ambient temperature, thereby preventing the connection from loosening and ensuring the stable operation of critical components such as the vehicle's fuel supply system and braking system. The quick-connect structure requires no additional tools and can be installed by simply connecting and rotating, greatly simplifying the assembly steps and improving the efficiency of installation and maintenance.

[0021] Several third snap-fit ​​pieces 24 are spaced apart on the inner wall surface of the first pipe body 21, and several fourth snap-fit ​​pieces 33 are spaced apart on the outer wall surface of the second pipe body 31. The number of third snap-fit ​​pieces 24 and fourth snap-fit ​​pieces 33 is the same.

[0022] Specifically, on the inner wall of the first pipe body 21, a number of third snap-fit ​​pieces 24 are evenly spaced along the circumference. Correspondingly, on the outer wall of the second pipe body 31, a number of fourth snap-fit ​​pieces 33, the same as the number of third snap-fit ​​pieces 24, are also evenly spaced along the circumference. This arrangement ensures that when the first pipe body 21 and the second pipe body 31 are connected, the third snap-fit ​​pieces 24 and the fourth snap-fit ​​pieces 33 can accurately correspond, providing a basis for subsequent snap-fit ​​engagement and avoiding the absence of snap-fit ​​structures in some positions due to mismatched quantities, which would affect the overall connection stability.

[0023] The fourth connector 33 has a second connector groove 34 on its side, the bottom surface of the second connector groove 34 is arc-shaped, and the end face of the third connector 24 is arc-shaped. When the third connector 24 is in the latching state, it is located in the second connector groove 34, and the third connector 24 and the fourth connector 33 are detachably connected.

[0024] Specifically, when the first tube 21 and the second tube 31 are in a snap-fit ​​state, the third snap-fit ​​member 24 will be embedded in the second snap-fit ​​groove 34. At this time, the arc-shaped end face of the third snap-fit ​​member 24 is completely in contact with the arc-shaped bottom face of the second snap-fit ​​groove 34. The fit of the arc-shaped surfaces not only reduces frictional damage between the third snap-fit ​​member 24 and the second snap-fit ​​groove 34, but also makes the contact between the two tighter, improving the structural stability after snap-fit. Furthermore, since the third snap-fit ​​member 24 and the fourth snap-fit ​​member 33 are detachably connected.

[0025] One end of the first snap-fit ​​component 22 and the second snap-fit ​​component 23 are fixedly connected to the corresponding connecting rod 26, and the other end of the connecting rod 26 is fixedly connected to the connector 27. One end of the spring 28 is fixedly connected to the connecting rod 26, and the other end of the spring 28 is fixedly connected to the bottom surface of the first snap-fit ​​groove 25.

[0026] Specifically, one end of the first snap-fit ​​22 is fixedly connected to one end of a connecting rod 26 by welding. Similarly, one end of the second snap-fit ​​23 is also fixedly connected to one end of another connecting rod 26 by welding. Then, the ends of the two connecting rods 26 away from the snap-fit ​​are welded to the corresponding positions of the connector 27 to ensure that the three are firmly connected and will not loosen or separate during use.

[0027] A spring 28 is fitted onto the connecting rod 26. One end of the spring 28 is welded and fixed to the outer wall of the connecting rod 26, and the other end of the spring 28 is welded and fixed to the bottom surface of the first snap-fit ​​groove 25. When the first snap-fit ​​member 22 and the second snap-fit ​​member 23 are subjected to external force, the connecting rod 26 will compress the spring 28. The reaction force generated by the spring 28 can push the first snap-fit ​​member 22 and the second snap-fit ​​member 23 to reset, ensuring that they can be stably snapped into the annular groove 32 of the second tube body 31.

[0028] Meanwhile, the connector 27 can be made larger so that when disassembly is required, the operator can more easily pull up the connector 27 and drive the first and second snap-fit ​​parts 23 to retract through the connecting rod 26, thereby separating the first tube body 21 from the second tube body 31.

[0029] Both the first snap-fit ​​connector 22 and the second snap-fit ​​connector 23 are semi-circular ring structures, and the first snap-fit ​​groove 25 is a circular ring groove. During installation, the first snap-fit ​​connector 22 and the second snap-fit ​​connector 23 are located within the first snap-fit ​​groove 25.

[0030] Specifically, during installation, the first snap-fit ​​component 22 and the second snap-fit ​​component 23 are placed in the first snap-fit ​​groove 25. After the two semi-circular snap-fit ​​components are combined, they can fit into the annular first snap-fit ​​groove 25, filling the internal space of the first snap-fit ​​groove 25. This effectively limits the positioning of the first snap-fit ​​component 22 and the second snap-fit ​​component 23, preventing them from shifting within the first snap-fit ​​groove 25. This ensures that when they mate with the annular groove 32 of the second tube body 31, they can be precisely engaged, guaranteeing the reliability of the connection. A sealing gasket 35 is provided on the outer wall of the second pipe body 31, and the sealing gasket 35 is fixedly connected to the second pipe body 31. Specifically, the sealing gasket 35 prevents the medium in the pipeline from leaking from the gap, and it can be connected to the outer wall of the second pipe body 31 by adhesive bonding.

[0031] Sealing rings are provided on the inner wall surfaces of the first and second connecting sleeves, with several sealing rings spaced apart; the ends of the first and second connecting sleeves are connected to the nylon tube.

[0032] Specifically, several annular mounting grooves are machined at intervals along the axial direction on the inner wall surface of the first connecting sleeve, and the sealing rings are embedded into the mounting grooves one by one to ensure that the sealing rings fit tightly with the mounting grooves and will not shift during use; similarly, several sealing rings are set at intervals on the inner wall surface of the second connecting sleeve in the same manner.

[0033] When it is necessary to connect the nylon tube, insert one end of the nylon tube into the ends of the first connecting sleeve and the second connecting sleeve respectively. Due to the presence of the sealing ring, a sealing structure can be formed between the connecting sleeve and the nylon tube to prevent the oil, brake fluid and other media in the pipeline from leaking from the connection between the connecting sleeve and the nylon tube. Multiple sealing rings set at intervals can form multiple sealing protection, further improve the sealing performance and ensure the normal operation of the automotive pipeline system.

[0034] How to use automotive nylon hose fittings: Align the first tube 21 of the first quick-connect assembly 2 with the second tube 31 of the second quick-connect assembly 3, and slowly push the first tube 21 along the axial direction. During the pushing process, the first snap-fit ​​member 22 and the second snap-fit ​​member 23 on the inner wall of the first tube 21 are squeezed by the second tube 31, and the spring 28 is compressed by the connecting rod 26 and retracted into the first snap-fit ​​groove 25; when the first snap-fit ​​member 22 and the second snap-fit ​​member 23 are pushed to correspond to the position of the annular groove 32 of the second tube 31, the spring 28 is reset, and the first snap-fit ​​member 22 and the second snap-fit ​​member 23 are pushed out and embedded into the annular groove 32, completing the first locking.

[0035] If the push cannot continue, it means that the third locking member 24 and the fourth locking member 33 are blocking each other. At this time, slightly rotate the first tube 21 to make the third locking member 24 and the fourth locking member 33 avoid the position of mutual obstruction. Then continue to push the first tube 21 until the end of the first tube 21 is tightly attached to the side of the second tube 31, which means that the two tubes have been pushed into place.

[0036] After the first tube 21 and the second tube 31 are tightly fitted together, rotate the first tube 21 counterclockwise until it can no longer be rotated. At this time, the third snap-fit ​​member 24 on the inner wall of the first tube 21 is precisely snapped into the second snap-fit ​​groove 34 on the side of the fourth snap-fit ​​member 33 on the outer wall of the second tube 31, completing the second locking, and the entire pipe joint installation process is completed.

[0037] Connect the nylon tubing to the ends of the first connecting sleeve 1 and the second connecting sleeve 4 respectively, ensuring a secure connection, and it is ready for use. For disassembly, rotate the first tube body 21 in the reverse direction to disengage the third snap-fit ​​member 24 from the second snap-fit ​​groove 34. Then pull the connector head 27, which, through the connecting rod 26, causes the first snap-fit ​​member 22 and the second snap-fit ​​member 23 to retract into the first snap-fit ​​groove 25, thus separating the first tube body 21 from the second tube body 31, thereby completing the disassembly of the entire pipe joint.

[0038] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. An automotive nylon hose connector, comprising a first connecting sleeve and a second connecting sleeve, characterized in that, A first quick-connect component is provided at one end of the first connecting sleeve, a second quick-connect component is provided at one end of the first quick-connect component, and a second connecting sleeve is provided at one end of the second quick-connect component; The first quick-connect assembly includes a first tube body, a first snap-fit ​​groove is provided on the inner wall surface of the first tube body, a first snap-fit ​​component and a second snap-fit ​​component are provided in the first snap-fit ​​groove, and a connecting rod is provided at one end of each of the first snap-fit ​​component and the second snap-fit ​​component. One end of the connecting rod passes through the bottom surface of the first snap-fit ​​groove and is connected to the connector. A spring is sleeved on the connecting rod. The second quick-connect assembly includes a second tube body, an annular groove is provided on the outer wall surface of the second tube body, and the first snap-fit ​​component and the second snap-fit ​​component are both located in the annular groove when snapped together.

2. The automotive nylon pipe connector as described in claim 1, characterized in that, A plurality of third snap-fit ​​components are spaced apart on the inner wall surface of the first tube, and a plurality of fourth snap-fit ​​components are spaced apart on the outer wall surface of the second tube, wherein the number of third snap-fit ​​components and fourth snap-fit ​​components is the same.

3. The automotive nylon pipe connector as described in claim 2, characterized in that, The fourth snap-fit ​​component has a second snap-fit ​​groove on its side, the bottom surface of the second snap-fit ​​groove is an arc-shaped surface, and the end face of the third snap-fit ​​component is an arc-shaped surface.

4. The automotive nylon pipe connector as described in claim 3, characterized in that, When the third snap-fit ​​component is in the snap-fit ​​state, it is located in the second snap-fit ​​slot, and the third snap-fit ​​component and the fourth snap-fit ​​component are detachably connected.

5. The automotive nylon pipe connector as described in claim 1, characterized in that, One end of each of the first and second snap-fit ​​components is fixedly connected to the corresponding connecting rod, and the other end of the connecting rod is fixedly connected to the connector.

6. The automotive nylon pipe connector as described in claim 1, characterized in that, One end of the spring is fixedly connected to the connecting rod, and the other end of the spring is fixedly connected to the bottom surface of the first snap-fit ​​groove.

7. The automotive nylon pipe connector as described in claim 1, characterized in that, Both the first and second snap-fit ​​components are semi-circular ring structures, and the first snap-fit ​​groove is a circular ring groove. During installation, the first and second snap-fit ​​components are located within the first snap-fit ​​groove.

8. The automotive nylon pipe connector as described in claim 1, characterized in that, A sealing gasket layer is provided on the outer wall surface of the second tube, and the sealing gasket layer is fixedly connected to the second tube.

9. The automotive nylon pipe connector as described in claim 1, characterized in that, Sealing rings are provided on the inner wall surfaces of the first connecting sleeve and the second connecting sleeve, and several sealing rings are provided at intervals.

10. The automotive nylon pipe connector as described in claim 9, characterized in that, The ends of the first and second connecting sleeves are connected to the nylon tube.

Images