Fuel pipe test joint guide sleeve structure

Abstract

The utility model relates to the technical field of fuel pipe test, and discloses a fuel pipe test joint guide sleeve structure, which comprises a socket, a fixed cylinder is fixedly connected above the socket, a fuel pipe main body is inserted into the fixed cylinder, the outer surface of the fuel pipe main body is provided with a buckle groove, and the buckle groove is provided with a clamping groove. An oil inlet groove is formed in one side of the interior of the fixed cylinder, a movable groove is formed in the other side of the interior of the fixed cylinder, a buckle ring is clamped in the fixed cylinder, a blocking ring is slidably connected to one side of the interior of the buckle ring, and a first push ring is slidably connected to the middle of the interior of the buckle ring; first springs are evenly and fixedly connected to the outer surface of the blocking ring, and locking semicircular rings are slidably connected to the two sides of the interior of the movable groove. When the fuel pipe main body is inserted and fixed in the fixing cylinder, the fuel pipe main body can be fixed only through the operation of the steps, and the fixing efficiency of the fuel pipe main body is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel pipe testing, in particular to a fuel pipe testing joint guide sleeve structure. Background Art

[0002] With the continuous development of my country's economy, the number of cars is increasing. Cars have become the mainstream means of transportation. The development of the automotive industry has also made people have higher and higher requirements for auto parts. Among them, the fuel pipe is one of the important accessories in the car. The fuel pipe can evenly distribute the fuel to each injector. In order to ensure the excellent quality of the fuel pipe, the fuel pipe needs to be subjected to various tests after production. In order to test the quality of the fuel pipe, it is usually necessary to perform a leak test on the fuel pipe.

[0003] After searching, the existing Chinese patent publication number is CN215635627U. This utility model provides a guide sleeve structure for a fuel pipe test joint, belonging to the field of pipeline guide technology. The utility model includes a socket and a fuel pipe body. The top side of the socket is equipped with a guide mechanism. The guide mechanism includes a side plate. The bottom side of the side plate is hingedly connected to the socket. The right side of the side plate is fixedly connected to a handle. The left side of the side plate is fixedly connected to a guide seat. A clamping block is inserted into the interior of the insertion rod, and the bottom side of the clamping block is fixedly connected to a spring. An adjustment mechanism is installed inside the guide seat. The bottom side of the fuel pipe body is equipped with a limiting mechanism. This device can limit the connection end of the fuel pipe body, thereby preventing the sealing ring in the socket quick connector from being damaged during docking. It can also support the bend of the fuel pipe body, further improving the verticality of the fuel pipe body and preventing it from skewing.

[0004] However, in the prior art, the sealing and stability of the joints of fuel pipes during testing directly affect the test results. To ensure the stability of the connection, existing devices are often equipped with numerous limit devices, resulting in complex interface connections. Therefore, a solution is proposed to address the problems raised in the above-mentioned background technology. Utility Model Content

[0005] To address these deficiencies, the present invention provides a guide sleeve structure for a fuel pipe test joint, designed to improve the sealing and stability of the joint during fuel pipe testing, which directly impacts the test results. However, existing devices often incorporate numerous stoppers to ensure a stable connection, leading to complex interface connections.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes a socket, a fixed cylinder is fixedly connected to the top of the socket, a fuel pipe body is inserted into the interior of the fixed cylinder, a snap groove is provided on the outer surface of the fuel pipe body, an oil inlet groove is provided on one side of the interior of the fixed cylinder, a movable groove is provided on the other side of the interior of the fixed cylinder, a snap ring is snapped into the interior of the fixed cylinder, a blocking ring is slidably connected to one side of the interior of the snap ring, a No. 1 push ring is slidably connected to the middle part of the interior of the snap ring, a No. 1 spring is evenly fixedly connected to the outer surface of the blocking ring, locking semicircular rings are slidably connected on both sides of the interior of the movable groove, a No. 2 push ring is slidably connected to the side above the snap ring, a No. 2 push ring is evenly fixedly connected to the outer surface of the No. 2 push ring, and a lower groove is provided on one side of the outer surface of the fuel pipe body.

[0007] As a further description of the above technical solution: after the fuel pipe body is inserted into the fixed cylinder, the end of the fuel pipe body is at an inclined angle. When it contacts the locking semicircular ring, it will push the two locking semicircular rings to one side of the movable groove, wherein the locking semicircular rings are two semicircular curved rings. As the fuel pipe body continues to be inserted, the two locking semicircular rings will contact the inclined slope on the outer surface of the fuel pipe body, and the inclined slope will continue to push the locking semicircular rings to move above the movable groove. After the fuel pipe body is fully inserted, the locking semicircular rings will slide into the buckle groove on the outer surface of the fuel pipe body. At this time, liquid is introduced, and the liquid will enter the gap between the No. 1 push ring and the buckle ring, pushing the No. 1 push ring to slide to one side and pushing the blocking ring to move toward the movable groove and contact the locking semicircular rings. Then push the locking semicircle ring to the side with smaller diameter of the movable groove, so that the locking semicircle ring can firmly fix the fuel pipe body inside the fixed cylinder through the combined action of the blocking ring and the snap groove. When the blocking ring moves, it will compress the No. 1 spring around it. At the same time, the liquid will enter one side of the No. 2 push ring through the oil inlet groove, and force the No. 2 push ring to compress the No. 2 spring and tightly press against the side of the snap ring. When the test is completed and the fuel pipe body needs to be pulled out, just stop the liquid introduction, and the compressed No. 1 and No. 2 springs will reset and push the blocking ring and No. 2 push ring to reset. At this time, gently press down on the fuel pipe body, and its two locking semicircle rings will return to the side with larger diameter of the movable groove and slide into the movable groove. Then pull up the fuel pipe body to pull it out.

[0008] Preferably, a support rod is fixedly connected to the top of the socket, and both sides of one side of the support rod are fixedly connected to reinforcing ribs.

[0009] As a further description of the above technical solution: the support rod can be used to install the snap rod, and the reinforcing rib can be used to strengthen the structural strength of the support rod.

[0010] Preferably, sliding grooves are provided on both sides above the support rod, and sliders are slidably connected inside the two sliding grooves.

[0011] As a further description of the above technical solution: the slider can slide inside the sliding groove after being subjected to force.

[0012] Preferably, a buckle rod is fixedly connected to the top of each of the two sliding blocks, and a bending groove is provided on one side of each of the two buckle rods.

[0013] As a further description of the above technical solution: the bending groove can improve the bending efficiency of the buckle rod.

[0014] Preferably, one end of each of the two buckle rods is rotatably connected to a roller, and one side of each of the two sliders is fixedly connected to a No. 3 spring.

[0015] As a further description of the above technical solution: the roller can make it easier for the bent portion of the fuel pipe body 3 to enter between the buckle rods.

[0016] Preferably, the other ends of the two No. 3 springs are fixedly connected to the inside of the two sliding grooves respectively.

[0017] As a further description of the above technical solution: during separation, the No. 3 spring will be compressed, and after the fuel pipe body has completely passed through, the compressed No. 3 spring will reset and push the clip rod to gather and clamp and fix the outer surface of the fuel pipe body.

[0018] Preferably, one end of the No. 1 spring is fixedly connected to the interior of the snap ring, and one end of the No. 2 spring is fixedly connected to a side of the interior of the fixing cylinder.

[0019] As a further description of the above technical solution: the compressed No. 1 spring and No. 2 spring will reset after losing the compression force, and push the blocking ring and No. 2 push ring to reset.

[0020] Preferably, a sealing ring is fixedly connected to one side of the outer surface of the fuel pipe body.

[0021] As a further description of the above technical solution: the sealing ring can improve the sealing performance of the fuel pipe body 1.

[0022] Compared with the prior art, the advantages and positive effects of the present invention are:

[0023] 1. In the present invention, after the fuel pipe body is inserted into the fixed cylinder, the end of the fuel pipe body is inclined. When it contacts the locking semicircular ring, it pushes the two locking semicircular rings to one side of the movable groove. The locking semicircular rings are two semicircular curved rings. As the fuel pipe body continues to be inserted, the two locking semicircular rings contact the inclined slope on the outer surface of the fuel pipe body. The inclined slope continues to push the locking semicircular rings to move upwards in the movable groove. After the fuel pipe body is fully inserted, the locking semicircular rings slide into the buckle groove on the outer surface of the fuel pipe body. At this time, liquid is introduced and enters the gap between the first push ring and the buckle ring, pushing the first push ring to slide to one side and pushing the blocking ring to move in the direction of the movable groove. When it contacts the locking semicircular ring, it is pushed to the side with the smaller diameter of the movable groove, so that the locking semicircular ring passes through the blocking ring. The fuel pipe body is firmly fixed inside the fixed cylinder under the joint action of the blocking ring and the snap groove. When the blocking ring moves, the No. 1 spring around it is compressed. At the same time, the liquid will enter one side of the No. 2 push ring through the oil inlet groove, and force the No. 2 push ring to compress the No. 2 spring and tightly press against the side of the snap ring. When the test is completed and the fuel pipe body needs to be pulled out, it is only necessary to stop the liquid introduction. The compressed No. 1 and No. 2 springs will reset and push the blocking ring and No. 2 push ring to reset. At this time, gently press down on the fuel pipe body, and its two locking semicircular rings will return to the side with the larger diameter of the movable groove and slide into the movable groove. Then pull the fuel pipe body upwards to pull it out. With this method, when the fuel pipe body is inserted and fixed inside the fixed cylinder, it can be fixed by only performing the above steps, which greatly improves the efficiency of fixing the fuel pipe body.

[0024] 2. In the present invention, by providing a snap rod on the outer surface of the fuel pipe body, when the fuel pipe body is inserted into the fixing barrel, the bent portion of the fuel pipe body contacts the roller and, during continued downward movement, pushes the two snap rods apart, causing a certain degree of bending. Simultaneously, this separation compresses the No. 3 spring. After the fuel pipe body has completely passed through, the compressed No. 3 spring resets and pushes the snap rods together, clamping and securing the outer surface of the fuel pipe body. This method ensures that the bent portion of the fuel pipe body is reliably supported after insertion into the fixing barrel, further enhancing the stability of the fuel pipe body after insertion. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional diagram of a guide sleeve structure for a fuel pipe test joint proposed in the present utility model;

[0026] Figure 2 This is a cross-sectional view of the planar structure of the fixed cylinder and the fuel pipe main body in the guide sleeve structure of the fuel pipe test joint proposed by the utility model;

[0027] Figure 3This is a schematic diagram of the three-dimensional structure of the fuel pipe main body in the guide sleeve structure of the fuel pipe test joint proposed by the present invention;

[0028] Figure 4 This is a sectional view of the three-dimensional structure of the fixed cylinder portion of the guide sleeve structure of the fuel pipe test joint proposed by the present invention;

[0029] Figure 5 A fuel pipe test joint guide sleeve structure proposed by the utility model Figure 2 A in the middle is an enlarged schematic diagram of the plane structure;

[0030] Figure 6 This is a sectional view of the three-dimensional structure of the support rod part in the guide sleeve structure of the fuel pipe test joint proposed by the utility model.

[0031] Legend:

[0032] 1. Socket; 2. Fixing tube; 3. Fuel pipe body; 4. Reinforcement rib; 5. Support rod; 6. Snap rod; 7. Bending groove; 8. Sealing ring; 9. Snap ring; 10. Push ring No. 1; 11. Blocking ring; 12. Spring No. 1; 13. Movable groove; 14. Locking semicircular ring; 15. Spring No. 2; 16. Push ring No. 2; 17. Fuel inlet groove; 18. Snap groove; 19. Lower groove; 21. Roller; 22. Slider; 23. Spring No. 3; 24. Sliding groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Reference Figures 1 to 5As shown, an embodiment of the present invention includes a socket 1, a fixed cylinder 2 is fixedly connected to the top of the socket 1, a fuel pipe body 3 is inserted into the interior of the fixed cylinder 2, a snap groove 18 is provided on the outer surface of the fuel pipe body 3, an oil inlet groove 17 is provided on one side of the interior of the fixed cylinder 2, a movable groove 13 is provided on the other side of the interior of the fixed cylinder 2, a snap ring 9 is snapped into the interior of the fixed cylinder 2, a blocking ring 11 is slidably connected to one side of the interior of the snap ring 9, a No. 1 push ring 10 is slidably connected to the middle part of the interior of the snap ring 9, the outer surface of the blocking ring 11 is evenly fixedly connected to a No. 1 spring 12, locking semicircular rings 14 are slidably connected on both sides of the interior of the movable groove 13, a No. 2 push ring 16 is slidably connected to one side above the snap ring 9, and a No. 2 spring 15 is evenly fixedly connected to the outer surface of the No. 2 push ring 16, and a lower groove 19 is provided on one side of the outer surface of the fuel pipe body 3.

[0035] In this embodiment, after the fuel pipe body 3 is inserted into the fixing cylinder 2, the end of the fuel pipe body 3 is inclined. When it contacts the locking semicircular ring 14, it pushes the two locking semicircular rings 14 to one side of the movable groove 13. The locking semicircular rings 14 are two semicircular curved rings. As the fuel pipe body 3 continues to be inserted, the two locking semicircular rings 14 contact the inclined slopes on the outer surface of the fuel pipe body 3. The inclined slopes continue to push the locking semicircular rings 14 to move upwards in the movable groove 13. After the fuel pipe body 3 is fully inserted, the locking semicircular rings 14 slide into the snap grooves 18 on the outer surface of the fuel pipe body 3. At this time, liquid is introduced and enters the gap between the first push ring 10 and the snap ring 9, pushing the first push ring 10 to slide to one side and pushing the blocking ring 11 to move towards the movable groove 13. When it contacts the locking semicircular rings 14, it is pushed to the side with the smaller diameter of the movable groove 13, so that the locking semicircular rings 14 pass through the blocking ring When the fuel pipe body 3 is pulled out, the fuel pipe body 3 can be firmly fixed in the fixed cylinder 2 by the combined action of 11 and the snap groove 18. When the blocking ring 11 moves, the No. 1 spring 12 around it is compressed. At the same time, the liquid will enter one side of the No. 2 push ring 16 through the oil inlet groove 17, forcing the No. 2 push ring 16 to compress the No. 2 spring 15 and tightly press against the side of the snap ring 9. When the test is completed and the fuel pipe body 3 needs to be pulled out, it is only necessary to stop the liquid from entering. The compressed No. 1 spring 12 and No. 2 spring 15 will reset and push the blocking ring 11 and No. 2 push ring 16 to reset. At this time, the fuel pipe body 3 is gently pressed downward, and its two locking semicircular rings 14 will return to the side with the larger diameter of the movable groove 13 and slide into the movable groove 13. Then, the fuel pipe body 3 can be pulled out by pulling it upward. By this method, when the fuel pipe body 3 is inserted and fixed in the fixed cylinder 2, the fixation can be completed by only performing the above steps, which greatly improves the efficiency of fixing the fuel pipe body 3.

[0036] Example 2, as Figures 1 to 6As shown, a support rod 5 is fixedly connected to the top of the socket 1, and both sides of one side of the support rod 5 are fixedly connected to the reinforcing rib 4, and sliding grooves 24 are provided on both sides above the support rod 5, and sliders 22 are slidably connected inside the two sliding grooves 24, and a snap rod 6 is fixedly connected to the top of the two sliders 22, and a bending groove 7 is provided on one side of the two snap rods 6. One end of the two snap rods 6 is rotatably connected to a roller 21, and one side of the two sliders 22 is fixedly connected to a No. 3 spring 23, and the other ends of the two No. 3 springs 23 are respectively fixedly connected to the inside of the two sliding grooves 24, one end of the No. 1 spring 12 is fixedly connected to the inside of the snap ring 9, one end of the No. 2 spring 15 is fixedly connected to one side of the inside of the fixed cylinder 2, and a sealing ring 8 is fixedly connected to one side of the outer surface of the fuel pipe body 3.

[0037] In this embodiment, by providing a snap rod 6 on the outer surface of the fuel pipe body 3, when the fuel pipe body 3 is inserted into the fixing barrel 2, the bent portion of the fuel pipe body 3 contacts the roller 21 and, during the continued downward movement, pushes the two snap rods 6 apart from each other, causing a certain degree of bending. Simultaneously, the separation compresses the No. 3 spring 23. After the fuel pipe body 3 has completely passed through, the compressed No. 3 spring 23 returns to its original position and pushes the snap rods 6 together to clamp and secure the outer surface of the fuel pipe body 3. With this method, the bent portion of the fuel pipe body 3 is reliably supported after it is inserted into the fixing barrel 2, further enhancing the stability of the fuel pipe body 3 after insertion.

[0038] Working principle: After the fuel pipe body 3 is inserted into the fixed cylinder 2, the end of the fuel pipe body 3 is at an inclined angle. When it contacts the locking semicircular ring 14, it pushes the two locking semicircular rings 14 to move to one side of the movable groove 13. The locking semicircular rings 14 are two semicircular curved rings. As the fuel pipe body 3 continues to be inserted, the two locking semicircular rings 14 will contact the inclined slope on the outer surface of the fuel pipe body 3. The inclined slope will continue to push the locking semicircular rings 14 to move above the movable groove 13. After the fuel pipe body 3 is fully inserted, the locking semicircular rings 14 will slide into the snap groove 18 on the outer surface of the fuel pipe body 3. At this time, liquid will be introduced and the liquid will enter the gap between the No. 1 push ring 10 and the snap ring 9, pushing the No. 1 push ring 10 to slide to one side and pushing the blocking ring 11 to move towards the movable groove 13 and contact the locking semi-circular ring 14. Then the locking semi-circular ring 14 will be pushed to the side with a smaller diameter of the movable groove 13, so that the locking semi-circular ring 14 can firmly fix the fuel pipe body 3 inside the fixing cylinder 2 under the joint action of the blocking ring 11 and the snap groove 18. When the blocking ring 11 moves, it compresses the four At the same time, the liquid will enter one side of the No. 2 push ring 16 through the oil inlet groove 17, and force the No. 2 push ring 16 to compress the No. 2 spring 15 and tightly press against the side of the snap ring 9. When the test is completed and the fuel pipe body 3 needs to be pulled out, just stop the liquid introduction, the compressed No. 1 spring 12 and No. 2 spring 15 will reset, and push the blocking ring 11 and No. 2 push ring 16 to reset. At this time, gently press down the fuel pipe body 3, and its two locking semicircular rings 14 will return to the side with the larger diameter of the movable groove 13 and slide onto the movable groove 13. The fuel pipe body 3 is then pulled out by pulling it upwards. By providing a snap rod 6 on the outer surface of the fuel pipe body 3, when the fuel pipe body 3 is inserted into the fixing cylinder 2, the bent portion of the fuel pipe body 3 contacts the roller 21 and pushes the two snap rods 6 apart from each other during the continuous downward movement, causing a certain degree of bending. At the same time, the No. 3 spring 23 is compressed during the separation. After the fuel pipe body 3 has completely passed through, the compressed No. 3 spring 23 is reset and pushes the snap rods 6 together to clamp and fix the outer surface of the fuel pipe body 3.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fuel pipe test joint guide sleeve structure, comprising a socket (1), characterized in that: A fixing cylinder (2) is fixedly connected to the upper portion of the socket (1), a fuel pipe body (3) is inserted into the interior of the fixing cylinder (2), a snap groove (18) is provided on the outer surface of the fuel pipe body (3), an oil inlet groove (17) is provided on one side of the interior of the fixing cylinder (2), a movable groove (13) is provided on the other side of the interior of the fixing cylinder (2), a snap ring (9) is snapped into the interior of the fixing cylinder (2), a blocking ring (11) is slidably connected to one side of the interior of the snap ring (9), and the snap ring (9) is provided with a locking ring (11) on one side of the interior of the fixing cylinder (2). The middle part of the buckle ring (9) is slidably connected to a push ring (10), the outer surface of the blocking ring (11) is evenly fixedly connected to a spring (12), both sides of the movable groove (13) are slidably connected to locking semicircular rings (14), one side above the snap ring (9) is slidably connected to a push ring (16), the outer surface of the push ring (16) is evenly fixedly connected to a spring (15), and a lower groove (19) is provided on one side of the outer surface of the fuel pipe body (3).

2. A fuel pipe test joint guide sleeve structure according to claim 1, characterized in that: A support rod (5) is fixedly connected to the top of the socket (1), and both sides of one side of the support rod (5) are fixedly connected to reinforcing ribs (4).

3. The fuel pipe test joint guide sleeve structure according to claim 2, characterized in that: Sliding grooves (24) are provided on both sides above the support rod (5), and sliders (22) are slidably connected inside the two sliding grooves (24).

4. The fuel pipe test joint guide sleeve structure according to claim 3, characterized in that: A buckle rod (6) is fixedly connected to the top of each of the two sliders (22), and a bending groove (7) is provided on one side of each of the two buckle rods (6).

5. The fuel pipe test joint guide sleeve structure according to claim 4, characterized in that: One end of each of the two buckle rods (6) is rotatably connected to a roller (21), and one side of each of the two sliders (22) is fixedly connected to a No. 3 spring (23).

6. The fuel pipe test joint guide sleeve structure according to claim 5, characterized in that: The other ends of the two No. 3 springs (23) are respectively fixedly connected to the insides of the two sliding grooves (24).

7. The fuel pipe test joint guide sleeve structure according to claim 1, characterized in that: One end of the No. 1 spring (12) is fixedly connected to the inside of the snap ring (9), and one end of the No. 2 spring (15) is fixedly connected to one side of the inside of the fixing cylinder (2).

8. The fuel pipe test joint guide sleeve structure according to claim 1, characterized in that: A sealing ring (8) is fixedly connected to one side of the outer surface of the fuel pipe body (3).

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