Quick butt joint buckle for fuel system pipeline

Abstract

The utility model discloses a kind of fuel system pipeline quick butt joint buckles, it is related to fuel system pipeline quick butt joint buckle technical field. Including main body pipe, by the clamping assembly being set, it is convenient to compensate type clamping to insertion pipe, when the right end of insertion pipe and the inner wall of main body pipe produce abrasion, the extrusion force generated by reset spring and wedge clamping block is pushed insertion pipe to move through wedge clamping groove, to be convenient to the gap generated between insertion pipe and main body pipe abrasion in real time compensation, so that insertion pipe and main body pipe are kept close contact between, to guarantee insertion pipe and main body pipe between keep good effect of adhesion, simultaneously, by the adjusting assembly being set, it is convenient to the compensation force degree generated by clamping assembly adjustment, so that clamping assembly keeps enough extrusion pressure to insertion pipe, to make fuel system pipeline quick butt joint buckle keep good sealing performance in long-term use process.

Description

Technical Field

[0001] This utility model relates to the field of quick-connect buckle technology for fuel system pipelines, specifically a quick-connect buckle for fuel system pipelines. Background Technology

[0002] Fuel system quick-connect clips are key components for connecting various sections of fuel lines. They are widely used in fuel transmission systems of automobiles, construction machinery, and other equipment. They are required to enable quick installation and removal of lines and reliable sealing. During long-term use of the equipment, the clips need to withstand frequent insertion and removal operations and vibration. The sealing performance of the connection points is directly related to the safe and stable operation of the fuel system, and high requirements are placed on the durability and adaptability of the clips.

[0003] However, existing quick-connect coupling clips for fuel system pipelines have significant shortcomings: First, wear is difficult to compensate for in real time. Traditional clips are mostly rigid connections, and after long-term contact and friction between the insert pipe and the main pipe, wear occurs, making it difficult to automatically fill the gap, resulting in loose fit and reduced sealing performance. Second, the compensation force is difficult to adjust. The elastic compensation structure of some clips has a fixed force, making it difficult to adjust according to actual operating conditions. Either insufficient compensation leads to sealing failure, or excessive force causes pipeline damage, making it difficult to adapt to different usage scenarios. Therefore, a quick-connect coupling clip for fuel system pipelines is urgently needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a quick-connect buckle for fuel system pipelines to solve the problems mentioned in the background art, such as the difficulty in real-time compensation for wear and the difficulty in adjusting the compensation force of existing quick-connect buckles for fuel system pipelines.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect buckle for fuel system pipelines, comprising a main tube, an insertion tube inserted into the inner wall of the main tube, and multiple mounting holes formed on the surface of the main tube, and further comprising: A snap-fit ​​assembly is disposed on the inner wall of the mounting hole and is used to perform a compensating snap-fit ​​on the insertion tube; An adjustment component, disposed on the surface of the main tube, is used to adjust the compensation force of the insertion tube.

[0006] Preferably, the snap-fit ​​assembly includes a wedge-shaped snap-fit ​​block, which is slidably connected to the inner wall of the mounting hole. The surface of the insertion tube is provided with a plurality of wedge-shaped snap-fit ​​grooves. The top surface of the wedge-shaped snap-fit ​​block is provided with a sliding groove. The inner wall of the sliding groove is slidably connected to a sliding column. A return spring is sleeved on the surface of the sliding column. A wedge-shaped pressing block is fixedly connected to the upper end of the sliding column.

[0007] Preferably, the adjusting component includes an extrusion tube, which is slidably connected to the surface of the main tube. The surface of the main tube is provided with threads, and the surface of the adjusting component is threadedly connected to an extrusion threaded block through the threads. The left end of the extrusion threaded block abuts against the right end of the extrusion tube.

[0008] Preferably, the surfaces of the plurality of wedge-shaped extrusion blocks are all matched with the inclination angle of the extrusion tube, and the surfaces of the plurality of wedge-shaped extrusion blocks are all slidably connected to the inner wall of the extrusion tube.

[0009] Preferably, the size of the wedge-shaped snap-fit ​​block matches the size of the wedge-shaped snap-fit ​​groove, and the wedge-shaped snap-fit ​​block is snapped into and adapted to the inner wall of the wedge-shaped snap-fit ​​groove.

[0010] Preferably, a sealing ring is fixedly connected to the inner wall of the main tube, and the right end of the insertion tube abuts against the left end of the sealing ring. The sealing ring is made of nano-silicon nitride composite material.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The designed snap-fit ​​assembly facilitates compensatory snap-fit ​​of the insert tube. When wear occurs between the right end of the insert tube and the inner wall of the main tube, the extrusion force generated by the return spring and the wedge-shaped snap-fit ​​block pushes the insert tube to move through the wedge-shaped snap-fit ​​groove. This facilitates real-time compensation for the gap caused by wear between the insert tube and the main tube, ensuring continuous and tight contact between them and maintaining a good fit. Simultaneously, the adjustable assembly allows for adjustment of the compensation force generated by the snap-fit ​​assembly, ensuring that the assembly maintains sufficient extrusion force on the insert tube. This ensures that the fuel system pipeline quick-connect buckle maintains good sealing performance during long-term use. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial cross-sectional view of the snap-fit ​​assembly of this utility model; Figure 3 This is a partial cross-sectional view of the adjustment component of this utility model.

[0013] In the diagram: 1. Main tube; 2. Insert tube; 3. Sealing ring; 4. Mounting hole; 5. Snap-fit ​​assembly; 501. Wedge snap-fit ​​block; 502. Wedge snap-fit ​​groove; 503. Sliding groove; 504. Sliding column; 505. Return spring; 506. Wedge extrusion block; 6. Adjustment assembly; 601. Extrusion tube; 602. Thread; 603. Extrusion thread block. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1 - Figure 3 This utility model provides a quick-connect buckle for fuel system pipelines, including a main tube 1, an insertion tube 2 inserted into the inner wall of the main tube 1, and multiple mounting holes 4 on the surface of the main tube 1. It also includes a snap-fit ​​component 5, which is disposed on the inner wall of the mounting holes 4 for compensating snap-fit ​​of the insertion tube 2, and an adjustment component 6, which is disposed on the surface of the main tube 1 for adjusting the compensation force of the insertion tube 2. The snap-fit ​​component 5 facilitates compensating snap-fit ​​of the insertion tube 2. When the right end of the insertion tube 2 wears against the inner wall of the main tube 1, the continuous squeezing force of the snap-fit ​​component 5 ensures a continuous and tight contact between the insertion tube 2 and the main tube 1. Simultaneously, the adjustment component 6 allows for adjustment of the compensation force of the snap-fit ​​component 5, ensuring that the snap-fit ​​component 5 maintains sufficient squeezing force on the insertion tube 2, thus maintaining good sealing performance of the quick-connect buckle for fuel system pipelines during long-term use.

[0016] Furthermore, the snap-fit ​​assembly 5 includes a wedge-shaped snap-fit ​​block 501, which is slidably connected to the inner wall of the mounting hole 4. Multiple wedge-shaped snap-fit ​​grooves 502 are formed on the surface of the insertion tube 2. A sliding groove 503 is formed on the top surface of the wedge-shaped snap-fit ​​block 501. A sliding post 504 is slidably connected to the inner wall of the sliding groove 503. A return spring 505 is sleeved on the surface of the sliding post 504. A wedge-shaped pressing block 506 is fixedly connected to the upper end of the sliding post 504. The surfaces of the multiple wedge-shaped pressing blocks 506 are all matched with the inclination angle of the pressing tube 601. The surfaces of multiple wedge-shaped extrusion blocks 506 are slidably connected to the inner wall of the extrusion tube 601. The size of the wedge-shaped snap-fit ​​block 501 matches the size of the wedge-shaped snap-fit ​​groove 502, and the wedge-shaped snap-fit ​​block 501 is snapped into place with the inner wall of the wedge-shaped snap-fit ​​groove 502. Through the snap-fit ​​assembly 5, when the insertion tube 2 is inserted into the interior of the main tube 1, the surface of the insertion tube 2 pushes the wedge-shaped snap-fit ​​block 501 to move, thereby causing the return spring 505 to contract. When the insertion tube 2 moves into place on the inner wall of the main tube 1, the return spring 505 extends, thereby pushing the wedge-shaped snap-fit ​​block 506 to engage. The connecting block 501 continuously compresses the insertion tube 2 through the wedge-shaped retaining groove 502. When the right end of the insertion tube 2 wears against the inner wall of the main tube 1, the compressive force generated by the return spring 505 and the wedge-shaped retaining block 501 pushes the insertion tube 2 to move through the wedge-shaped retaining groove 502. This facilitates real-time compensation for the gap caused by wear between the insertion tube 2 and the main tube 1, ensuring continuous and tight contact between the insertion tube 2 and the main tube 1, thereby guaranteeing a good fit between the insertion tube 2 and the main tube 1. Block 506 and extrusion tube 601 work together to move extrusion tube 601 to the left. Through the limitation of multiple sliding columns 504, multiple wedge-shaped extrusion blocks 506 move downward to extrude the corresponding return springs 505. This facilitates the synchronous adjustment of the extrusion force of multiple return springs 505, ensuring that the insertion tube 2 is subjected to uniform extrusion force. Through the cooperation of extrusion tube 601 and thread 602, when extrusion tube 601 moves downward, it extrudes the insertion tube 2, causing the insertion tube 2 to move to the right. It should be noted that a sealing ring 3 is fixedly connected to the inner wall of the main tube 1. The right end of the insertion tube 2 abuts against the left end of the sealing ring 3. The sealing ring 3 is made of nano-silicon nitride composite material. The sealing ring 3 made of nano-silicon nitride composite material has better resistance to fuel swelling and wear than traditional nitrile rubber or ordinary fluororubber. At the same time, the sealing ring 3 made of nano-silicon nitride composite material has stable elasticity, strong anti-aging performance, and is suitable for wide temperature and complex fuel environments, thus extending the life of the sealing ring 3.

[0017] Furthermore, the adjusting component 6 includes a compression tube 601, which is slidably connected to the surface of the main tube 1. The surface of the main tube 1 is provided with threads 602. The surface of the adjusting component 6 is threadedly connected to a compression threaded block 603 through the threads 602. The left end of the compression threaded block 603 abuts against the right end of the compression tube 601. By setting the adjusting component 6, when the compression threaded block 603 is rotated, the compression threaded block 603 moves, and the left end of the compression threaded block 603 pushes the compression tube 601 to move. When the compression tube 601 moves, it pushes the sliding column 504 downward through the wedge-shaped compression block 506. The return spring 505 contracts and deforms. When the return spring 505 contracts and deforms, it is convenient to adjust the force of the return spring 505 pushing the wedge-shaped locking block 501. This allows the locking component 5 to maintain sufficient compression force on the insertion tube 2, so that the fuel system pipeline quick-connect buckle maintains good sealing performance during long-term use.

[0018] Working principle: During use, the snap-fit ​​component 5 causes the surface of the insert tube 2 to push the wedge-shaped snap-fit ​​block 501 to move when the insert tube 2 is inserted into the body tube 1, thereby causing the return spring 505 to contract. When the insert tube 2 moves into position on the inner wall of the body tube 1, the return spring 505 extends, thereby pushing the wedge-shaped snap-fit ​​block 501 to continuously squeeze the insert tube 2 through the wedge-shaped snap-fit ​​groove 502. When the right end of the insert tube 2 wears against the inner wall of the body tube 1, the squeezing force generated by the return spring 505 and the wedge-shaped snap-fit ​​block 501 pushes the insert tube 2 to move through the wedge-shaped snap-fit ​​groove 502. This facilitates real-time compensation for the gap caused by wear between the insert tube 2 and the body tube 1, ensuring continuous and tight contact between the insert tube 2 and the body tube 1, and thus ensuring a good fit between the insert tube 2 and the body tube 1.

[0019] Secondly, by setting the adjustment component 6, when the compression thread block 603 is rotated, the left end of the compression thread block 603 moves and pushes the compression tube 601 to move. When the compression tube 601 moves, it pushes the sliding column 504 downward through the wedge-shaped compression block 506. The return spring 505 contracts and deforms. When the return spring 505 contracts and deforms, it is easy to adjust the force of the return spring 505 pushing the wedge-shaped snap-fit ​​block 501. In this way, the snap-fit ​​component 5 maintains sufficient compression force on the insertion tube 2, so that the fuel system pipeline quick-connect buckle maintains good sealing performance during long-term use.

[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fuel system pipe quick docking buckle, comprising a main pipe (1), an insertion pipe (2) is inserted into the inner wall of the main pipe (1), and a plurality of mounting holes (4) are formed in the surface of the main pipe (1), characterized in that, Also includes: The snap-fit ​​assembly (5) is disposed on the inner wall of the mounting hole (4) and is used to perform a compensating snap-fit ​​on the insertion tube (2); Adjustment component (6), which is disposed on the surface of the main tube (1), is used to adjust the compensation force of the insertion tube (2).

2. A fuel system quick coupling according to claim 1, wherein: The snap-fit ​​assembly (5) includes a wedge snap-fit ​​block (501), which is slidably connected to the inner wall of the mounting hole (4). The surface of the insertion tube (2) is provided with a plurality of wedge snap-fit ​​grooves (502). The top surface of the wedge snap-fit ​​block (501) is provided with a sliding groove (503). The inner wall of the sliding groove (503) is slidably connected with a sliding column (504). The surface of the sliding column (504) is fitted with a reset spring (505). The upper end of the sliding column (504) is fixedly connected with a wedge extrusion block (506).

3. The quick-connect snap-fit ​​for fuel system pipelines according to claim 1, characterized in that: The adjusting component (6) includes a compression tube (601), which is slidably connected to the surface of the main tube (1). The surface of the main tube (1) is provided with threads (602). The surface of the adjusting component (6) is threadedly connected to a compression threaded block (603) through the threads (602). The left end of the compression threaded block (603) abuts against the right end of the compression tube (601).

4. The quick docking snap of claim 2, wherein: The surfaces of the plurality of wedge-shaped extrusion blocks (506) are all matched with the inclination angle of the extrusion tube (601), and the surfaces of the plurality of wedge-shaped extrusion blocks (506) are all slidably connected to the inner wall of the extrusion tube (601).

5. The quick docking snap of claim 2, wherein: The size of the wedge-shaped snap-fit ​​block (501) matches the size of the wedge-shaped snap-fit ​​groove (502), and the wedge-shaped snap-fit ​​block (501) is snap-fitted to the inner wall of the wedge-shaped snap-fit ​​groove (502).

6. A fuel system quick coupling according to claim 1, wherein: The inner wall of the main tube (1) is fixedly connected with a sealing ring (3), and the right end of the insertion tube (2) abuts against the left end of the sealing ring (3). The sealing ring (3) is made of nano-silicon nitride composite material.

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