Movable oil pipe joint

Abstract

The utility model discloses a movable oil pipe joint which comprises an oil pipe body and a connecting nut, a pipe head is inserted into one end of the oil pipe body, a plurality of anti-skidding protrusions abutting against the inner wall of the oil pipe body are arranged on the outer wall of the pipe head, and one end of the pipe head extends into the connecting nut and is rotationally connected with the connecting nut. According to the anti-skid oil pipe, the friction force between the oil pipe body and the pipe head is increased through the anti-skid protrusions, it is guaranteed that the oil pipe body is installed stably, the pipe head is rotationally connected with the connecting nut, and therefore the oil pipe body can be installed stably, and the anti-skid effect is good. The oil pipe body can rotate along with the pipe head, the problem that the rotation angle is not matched does not need to be worried about, and therefore conveying path abnormity caused by oil pipe distortion is effectively avoided, and efficient conveying of fuel oil is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically a movable oil pipe connector. Background Technology

[0002] A car's fuel line system is responsible for transferring fuel from the fuel tank to the engine's combustion chamber, ensuring a stable and adequate fuel supply for normal engine operation. This system is made of high-strength, corrosion-resistant materials such as metal alloys or polymers, guaranteeing that the fuel lines can withstand high pressure and the chemical corrosion of fuel. The entire fuel line system includes not only multiple pipe sections but also components such as joints, interfaces, and connectors. These components are assembled using rigorous sealing techniques and fastening measures to effectively prevent fuel leakage and ensure the system's safety and reliability. Therefore, automotive fuel lines are designed with both physical strength and chemical stability in mind, making them an indispensable part of vehicle operation.

[0003] Existing oil pipe fittings typically employ an integrated design, which does not support angle adjustment. The two ends of the oil pipe need to be rotated during connection. After the two ends of the oil pipe are connected and fixed, if the fixing angles of the two ends do not match, i.e., the number of rotations are different, this will cause the oil pipe to twist like a rope. The twisted part will reduce the fuel delivery efficiency. To ensure the fuel delivery efficiency, the oil pipe needs to be reinstalled. Utility Model Content

[0004] The purpose of this invention is to provide a movable oil pipe joint to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A movable oil pipe joint includes an oil pipe body and a connecting nut. A pipe head is inserted into one end of the oil pipe body. The outer wall of the pipe head is provided with several anti-slip protrusions that abut against the inner wall of the oil pipe body. One end of the pipe head extends into the connecting nut and is rotatably connected to the connecting nut. The connecting nut has an annular limiting part at the end of the pipe head, and the end of the pipe head inside the connecting nut has an annular boss that abuts against the annular limiting part.

[0007] Furthermore, the other end of the connecting nut is threadedly connected to a connector body, and a sealing ring is provided between the connector body and the pipe head. One end of the sealing ring abuts against the top of the pipe head, and the other end abuts against the bottom of the connector body to form a sealing structure.

[0008] Furthermore, both the connecting nut and the pipe end located outside the connecting nut are provided with limiting ring grooves. The connecting nut and the pipe end are respectively provided with upper fixing rings and lower fixing rings. Both sides of the upper fixing rings and lower fixing rings are provided with limiting ring blocks that can be inserted into the two limiting ring grooves. The upper fixing rings and lower fixing rings are used to lock and fix the connecting nut and the pipe end by bolts.

[0009] Furthermore, each of the two limiting ring grooves is provided with an inclined guide surface 1, and each of the two limiting ring blocks of the upper and lower fixing hoops is provided with an inclined guide surface 2, and each of the inclined guide surfaces 1 can fit into the corresponding inclined guide surface 2.

[0010] Furthermore, the end of the pipe head into which the oil pipe body is inserted has a plurality of circular grooves, and the inner wall of the oil pipe body has a plurality of circular blocks, each of which is inserted into a corresponding groove.

[0011] The beneficial effects of this utility model are:

[0012] This invention features a pipe head inserted into one end of the oil pipe body. The outer wall of the pipe head has several anti-slip protrusions that abut against the inner wall of the oil pipe body. These anti-slip protrusions increase the friction between the pipe head and the inner wall of the oil pipe body, ensuring the stability of the oil pipe body installation. One end of the pipe head extends into the connecting nut and is rotatably connected to it. Therefore, the pipe head can rotate freely, and the oil pipe body can rotate with the pipe head, eliminating concerns about mismatched rotation angles. This effectively avoids abnormal delivery paths caused by oil pipe twisting, ensuring efficient fuel delivery.

[0013] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0014] Figure 1 : Overall structural diagram of embodiment one of this utility model.

[0015] Figure 2 : A cross-sectional view of an embodiment of this utility model.

[0016] Figure 3 : Overall structural diagram of embodiment two of this utility model.

[0017] Figure 4 : Exploded view of the oil pipe body and pipe head in Embodiment 2 of this utility model.

[0018] Figure 5 : Overall cross-sectional view of Embodiment 2 of this utility model.

[0019] Reference numerals in the attached drawings: 1. Tubing body; 2. Connecting nut; 3. Tubing end; 4. Anti-slip protrusion; 5. Connector body; 6. Sealing ring; 7. Upper fixing clamp; 8. Lower fixing clamp; 11. Clamping block; 21. Annular limiting part; 22. Limiting ring groove; 23. Guide slope one; 31. Annular boss; 32. Clamping groove; 71. Limiting ring block; 72. Guide slope two. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please refer to Figure 1-5 ;

[0022] Implementation Method 1: A movable oil pipe connector includes an oil pipe body 1 and a connecting nut 2. A pipe head 3 is inserted into one end of the oil pipe body 1. The outer wall of the pipe head 3 is provided with several anti-slip protrusions 4 that abut against the inner wall of the oil pipe body 1. The anti-slip protrusions 4 increase the friction with the inner wall of the oil pipe body 1 to ensure the stable installation of the oil pipe body 1. One end of the pipe head 3 extends into the interior of the connecting nut 2 and is rotatably connected to the connecting nut 2. Therefore, the pipe head 3 can rotate freely, and the oil pipe body 1 can rotate with the pipe head 3 without worrying about the problem of mismatched rotation angles. This effectively avoids abnormal delivery path caused by oil pipe twisting and ensures efficient fuel delivery. The connecting nut 2 is provided with an annular limiting part 21 at one end of the pipe head 3. The end of the pipe head 3 located inside the connecting nut 2 is provided with an annular boss 31 that abuts against the annular limiting part 21. Through the cooperation of the annular limiting part 21 and the annular boss 31, the movement of the pipe head 3 towards the annular limiting part 21 is restricted.

[0023] Implementation Method 2: The other end of the connecting nut 2 is threadedly connected to a connector body 5. A sealing ring 6 is provided between the connector body 5 and the pipe head 3. One end of the sealing ring 6 abuts against the top of the pipe head 3, and the other end abuts against the bottom of the connector body 5 to form a sealing structure. Through the combined action of the connector body 5 and the sealing ring 6, the movement of the pipe head 3 towards the connector body 5 is effectively restricted, ensuring the fixation of the pipe head 3 installation position and preventing displacement. At the same time, the sealing ring 6 can also seal the connection gap between the pipe head 3 and the connector body 5, preventing fuel from leaking from these gaps during the input process.

[0024] Because the sealing ring 6 is made of soft material, when the pipe head 3 is subjected to pressure, it may shift towards the sealing ring 6. After the two ends of the oil pipe body 1 are installed, since the other end of the oil pipe body 1 is fixed, repeated such displacement may cause the pipe head 3 to separate from the oil pipe body 1, thus causing fuel leakage. To address this, limiting ring grooves 22 are provided at the connecting nut 2 and the end of the pipe head 3 located outside the connecting nut 2. Upper fixing clamps 7 and lower fixing clamps 8 are provided on the outside of the connecting nut 2 and the pipe head 3, respectively. Limiting ring blocks 71 that can be inserted into the two limiting ring grooves 22 are provided on both sides of the upper fixing clamps 7 and lower fixing clamps 8. By using bolts to lock the two ends of the upper fixing clamps 7 and lower fixing clamps 8, when the two fixing clamps are locked, the limiting ring blocks 71 on both sides will be inserted into the limiting ring grooves 22, thereby tightly fixing the pipe head 3 and the connecting nut 2 together, preventing the pipe head 3 from shifting due to pressure, enhancing the stability of the entire oil pipe joint structure, and ensuring that the pipe head 3 will not easily separate from the oil pipe body 1.

[0025] In this embodiment, guide slopes 1 and 23 are respectively inclined on both sides of the two limiting ring grooves 22, and guide slopes 2 and 72 are respectively inclined on both sides of the two limiting ring blocks 71 of the upper fixing hoop 7 and the lower fixing hoop 8. A number of guide slopes 1 and 23 can fit with the corresponding guide slopes 2 and 72. When the upper fixing hoop 7 and the lower fixing hoop 8 are installed, the guide slopes 1 and 2 and guide slopes 2 and 72 can automatically guide the pipe head 3 to the correct position, reducing the need for manual adjustment of the position of the pipe head 3 and improving the installation efficiency.

[0026] In this embodiment, the end of the pipe head 3 into which the oil pipe body 1 is inserted has a plurality of circularly distributed slots 32, and the inner wall of the oil pipe body 1 has a plurality of circularly distributed locking blocks 11. Each locking block 11 is inserted into a corresponding slot 32. When the oil pipe body 1 rotates, the pipe head 3 will also rotate along with the locking blocks 11 since they have been inserted into the slots 32. This design allows the pipe head 3 and the oil pipe body 1 to rotate as a whole, thereby avoiding the problem of slippage of the oil pipe body 1 during rotation due to insufficient friction, ensuring the synchronization of the two during rotation, and improving the stability and reliability of the connection between the oil pipe body 1 and the pipe head 3.

[0027] 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.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A movable oil pipe joint, comprising an oil pipe body (1) and a connecting nut (2), characterized in that, The pipe head (3) is inserted into one end of the pipe body (1). The outer wall of the pipe head (3) is provided with several anti-slip protrusions (4) that abut against the inner wall of the pipe body (1). One end of the pipe head (3) extends into the interior of the connecting nut (2) and is rotatably connected to the connecting nut (2). The connecting nut (2) is provided with an annular limiting part (21) at one end of the pipe head (3). The end of the pipe head (3) located inside the connecting nut (2) is provided with an annular boss (31) that abuts against the annular limiting part (21).

2. The movable oil pipe joint according to claim 1, characterized in that, The other end of the connecting nut (2) is threaded to a connector body (5). A sealing ring (6) is provided between the connector body (5) and the pipe head (3). One end of the sealing ring (6) abuts against the top of the pipe head (3), and the other end abuts against the bottom of the connector body (5) to form a sealing structure.

3. A movable oil pipe joint according to claim 1, characterized in that, The connecting nut (2) and the pipe head (3) are both provided with a limiting ring groove (22) at the end outside the connecting nut (2). The connecting nut (2) and the pipe head (3) are respectively provided with an upper fixing hoop (7) and a lower fixing hoop (8). The upper fixing hoop (7) and the lower fixing hoop (8) are provided with limiting ring blocks (71) on both sides that can be inserted into the two limiting ring grooves (22). The upper fixing hoop (7) and the lower fixing hoop (8) are used to lock and fix the connecting nut (2) and the pipe head (3) by bolts.

4. A movable oil pipe joint according to claim 3, characterized in that, The two limiting ring grooves (22) are respectively provided with inclined guide surfaces one (23) on both sides. The two limiting ring blocks (71) of the upper fixing hoop (7) and the lower fixing hoop (8) are respectively provided with inclined guide surfaces two (72) on both sides. Several of the inclined guide surfaces one (23) can fit with the corresponding inclined guide surfaces two (72).

5. A movable oil pipe joint according to claim 1, characterized in that, The pipe head (3) has a plurality of grooves (32) arranged in a circle at one end for insertion into the oil pipe body (1), and a plurality of blocks (11) arranged in a circle on the inner wall of the oil pipe body (1), and each of the blocks (11) is inserted into the corresponding groove (32).

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