High-pressure oil pipe joint with sealing structure

Abstract

The invention provides a high-pressure oil pipe connector with a sealing structure, and relates to the technical field of pipe fitting connectors, an oil pipe connector body comprises a top layer sealing mechanism, a bottom layer sealing mechanism, a locking piece and a movable connecting piece, an outer layer sleeve is integrally formed at the top end of the top layer sealing mechanism, and an injection oil pipe is integrally formed at one end of the outer layer sleeve; an injection oil pipe is integrally formed on the side edge of the top layer sealing mechanism, a discharge oil pipe is integrally formed on the side edge of the bottom layer sealing mechanism, and the top layer sealing mechanism, the bottom layer sealing mechanism, the injection oil pipe and the discharge oil pipe are integrally made of rigid metal materials. Meanwhile, pressure is applied to the butt joint ring part for connection between the injection oil pipe and the discharge oil pipe, so that the multi-position extrusion effect is achieved, the sealing pressure application range is expanded, the sealing effect is enhanced, the stepless adjusting function can be achieved, and the loosening phenomenon caused by vibration is effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of pipe joints, in particular to a high-pressure oil pipe joint with a sealing structure. Background Art

[0002] ‌Automobile oil pipe joints are used to ensure that the connection between oil pipes is firm and the seal is reliable, prevent oil leakage, and ensure the normal operation of the oil circuit. ‌Oil pipe joints are indispensable in the fuel system of automobiles and the power transmission system of hydraulic equipment. For example, the oil inlet pipe joint body in the fuel system of an automobile is a part that connects the oil inlet pipe and the oil pump. It is responsible for transporting fuel from the fuel tank to the engine to ensure the normal operation of the engine. If the oil inlet pipe joint body is damaged or leaks oil, it will cause insufficient fuel supply to the engine and affect the normal operation of the engine.

[0003] There are various types of oil pipe joints for automobiles in the prior art. Due to the complex and changeable internal pipeline structure of the automobile power compartment, the installation range and angle of the oil pipe joints are also greatly limited. This leads to the oil pipe joints being divided into a variety of bending angles, and each specification of the oil pipe joints with alloy structure can only provide a single bending angle, and the scope of application is single. In addition, the surface of the conventional high-pressure oil pipe joint is sealed by setting a sealing sleeve, but the spliced ​​sealing sleeve has a large number of fitting gaps, and it is impossible to simultaneously achieve the effect of fully sealing and shielding the fitting area and infinitely regulating the angle. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a high-pressure oil pipe joint with a sealing structure to solve the problems raised in the above-mentioned background technology. The present invention uses a central locking piece to simultaneously apply a thrust toward the middle to the sealing structures of the top and bottom layers, and also applies pressure to the docking ring portion connecting the injection pipe and the discharge pipe, thereby achieving a multi-point extrusion effect, expanding the range of sealing pressure application, enhancing the sealing effect, and being able to realize a stepless adjustment function, with higher flexibility and effectively preventing loosening caused by vibration.

[0005] In order to achieve the above-mentioned purpose, the present invention is achieved through the following technical scheme: a high-pressure oil pipe joint with a sealing structure, including an oil pipe joint body, the oil pipe joint body including a top sealing mechanism, a bottom sealing mechanism, a locking piece and a movable connecting piece, the top of the top sealing mechanism is integrally formed with an outer casing, one end of the outer casing is integrally formed with an injection pipe, the side of the bottom sealing mechanism is integrally formed with a discharge pipe, and the top sealing mechanism, the bottom sealing mechanism, the injection pipe and the discharge pipe are integrally formed with rigid metal materials as a whole, the end of the top sealing mechanism is integrally formed with a cover plate, the surface of the cover plate is interspersed with a plurality of locking pieces, the bottom end of the inner wall of the bottom sealing mechanism is integrally formed with a slide groove, the interior of the slide groove is embedded with a movable connecting piece, the end of each of the locking pieces is embedded in the interior of the movable connecting piece, the ends of the injection pipe and the discharge pipe are butt-jointed and connected inside the bottom sealing mechanism, and a threaded sleeve is provided at the bottom of the outer casing.

[0006] Furthermore, the bottom sealing mechanism includes an outer shell and an extension plate, the extension plate is welded to the side of the outer shell, a docking sleeve is welded to the top of the outer shell, a sealing ring is screwed on the surface of the docking sleeve, and a second docking ring is integrally formed at one end of the discharge oil pipe inside the outer shell.

[0007] Furthermore, a lever is inserted into the side of the sealing ring, the oil discharge pipe and the oil injection pipe are both right-angle bent structures as a whole, the edge of the extension plate is an arc-shaped structure, and the bottom of the extension plate is flush with the bottom surface of the shell.

[0008] Furthermore, the top layer sealing mechanism includes a cover plate, an inner sleeve and an outer sleeve, the cover plate is integrally formed at the end of the outer sleeve, the inner sleeve is integrally formed at the bottom of the cover plate, and a first threaded hole is opened on the surface of the cover plate.

[0009] Furthermore, a plug-in tube is provided at one end of the oil injection pipe, and a first docking ring is integrally formed at the end of the plug-in tube, and the first docking ring is used to press on the surface of the second docking ring.

[0010] Furthermore, a threaded column is inserted inside the threaded sleeve, a rubbing wheel is welded in the middle of the threaded column, an extrusion pad is screwed integrally at the bottom of the threaded column, a cone block is inserted at the bottom of the extrusion pad, and the extrusion pad is used to press on the surface of the extension plate.

[0011] Furthermore, the locking piece includes a boosting ring and a locking rod, the locking rod passes through the surface of the boosting ring, a bottom external thread structure is provided on the outer side of the bottom of the locking rod, a magnetic column is provided on the lower end of the surface of the locking rod, and a top external thread structure is provided above the surface of the locking rod.

[0012] Furthermore, a knob is integrally formed at the top of the locking rod, and a pressure plate is welded to the side of the locking rod, the pressure plate is used to press on the surface of the boost ring, and the boost ring is used to press on the surface of the first docking ring.

[0013] Furthermore, the slide groove is annular in structure as a whole, and a slot is provided on the inner wall of the slide groove. The movable connecting member includes a movable ring and a second threaded hole, and the second threaded hole is provided on the surface of the movable ring.

[0014] Furthermore, a magnetic baffle is welded on the surface of the movable ring, and the cross-section of the magnetic baffle is a semicircular structure. A clamping plate is welded on the side of the movable ring, and the clamping plate is used to be embedded in the interior of the slot, and the bottom external thread structure is embedded in the interior of the second threaded hole.

[0015] Beneficial effects of the present invention: 1. The high-pressure oil pipe joint with a sealing structure realizes a thrust toward the middle of the top and bottom sealing structures through the central locking piece at the same time, and also applies pressure to the docking ring part connecting the injection pipe and the discharge pipe, thereby realizing a multi-point extrusion effect, expanding the range of sealing pressure application, and enhancing the sealing effect.

[0016] 2. The high-pressure oil pipe joint with a sealing structure is connected to the top sealing mechanism and the locking part through the movable connecting piece at the bottom. Therefore, before the docking is completed and not completely locked, the bottom sealing mechanism part can be directly rotated to change the angle between the injection pipe and the discharge pipe, thereby realizing the stepless adjustment function, which is more flexible and expands the scope of application. At the same time, the magnetic baffle on the movable connecting piece and the magnetic column on the locking piece assist the insertion and positioning process of the locking piece, reducing the installation difficulty of the structure.

[0017] 3. The high-pressure oil pipe joint with a sealing structure can lock the directional angles of the injection pipe and the discharge pipe from three different positions at the same time after installation by means of the extrusion force between the top and bottom sealing mechanisms, the extrusion force of the docking ring part, and the plug-in effect of the extrusion pad and the cone block part, thereby effectively preventing the entire joint part from loosening due to automobile vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the appearance of a high-pressure oil pipe joint with a sealing structure of the present invention; Figure 2 A side cross-sectional view of a high-pressure oil pipe joint with a sealing structure according to the present invention; Figure 3 It is a structural schematic diagram of the top sealing mechanism part of the present invention; Figure 4This is a disassembled diagram of the bottom sealing mechanism of the present invention; Figure 5 It is a schematic diagram of the installation of the locking part of the present invention; Figure 6 for Figure 2 A magnified image of area A; Figure 7 It is a structural schematic diagram of the movable connecting part of the present invention; In the figure: 1. top sealing mechanism; 2. bottom sealing mechanism; 3. injection pipe; 4. discharge pipe; 5. locking piece; 6. movable connecting piece; 7. first docking ring; 8. outer casing; 9. threaded sleeve; 10. threaded column; 11. rubbing wheel; 12. extrusion pad; 13. cone block; 14. cover plate; 15. first threaded hole; 16. inner casing; 17. plug-in tube; 18. booster ring; 19. outer casing; 20. extension plate; 21. docking sleeve; 22. sealing ring; 23. lever; 24. locking rod; 25. top external thread structure; 26. knob; 27. pressure plate; 28. magnetic column; 29. ​​bottom external thread structure; 30. slide groove; 31. slot; 32. magnetic baffle; 33. movable ring; 34. second threaded hole; 35. card plate; 36. second docking ring. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] See also Figures 1 to 7 The present invention provides the following technical solutions: a high-pressure oil pipe joint with a sealing structure, comprising an oil pipe joint body, the oil pipe joint body comprising a top sealing mechanism 1, a bottom sealing mechanism 2, a locking member 5 and a movable connecting member 6, the top of the top sealing mechanism 1 is integrally formed with an outer sleeve 8, one end of the outer sleeve 8 is integrally formed with an injection pipe 3, the side of the bottom sealing mechanism 2 is integrally formed with a discharge pipe 4, and the top sealing mechanism 1, the bottom sealing mechanism 2, the injection pipe 3 and the discharge pipe 4 are integrally formed with a rigid metal material as a whole, the end of the top sealing mechanism 1 is integrally formed with a cover plate 14, the surface of the cover plate 14 is interspersed with a plurality of locking members 5, the bottom end of the inner wall of the bottom sealing mechanism 2 is integrally formed with a slide groove 30, the inside of the slide groove 30 is embedded with a movable connecting member 6, the end of each of the locking members 5 is embedded in the inside of the movable connecting member 6, the ends of the injection pipe 3 and the discharge pipe 4 are butt-jointed and connected inside the bottom sealing mechanism 2, and a threaded sleeve 9 is provided at the bottom of the outer sleeve 8. The high-pressure oil pipe joint is used for being installed inside a car to connect two different oil pipes.

[0021] When installing the present invention, the oil injection pipe 3 is first connected to one of the oil delivery pipes, and then the top sealing mechanism 1 at the end of the oil injection pipe 3 can be embedded in the bottom sealing mechanism 2. After insertion, the bottom of the locking piece 5 is controlled to connect with the movable connecting piece 6. The locking piece 5 is rotated with the help of a tool, and the top sealing mechanism 1 and the bottom sealing mechanism 2 can be pressed and locked by the locking piece 5 to achieve the sealing treatment of the inside of the sealing mechanism. At the same time, the locking piece 5 also provides an extrusion effect on the two inner docking ring parts, so that the inside of the oil injection pipe 3 and the oil discharge pipe 4 can be sealed again. Finally, the threaded column 10 is controlled to be pressed on the surface of the extension plate 20, so that the angle locking function between the top sealing mechanism 1 and the bottom sealing mechanism 2 can be realized. At this time, the installation process of the oil pipe joint can be completed, and the oil discharge pipe 4 can be connected with another delivery pipe after installation.

[0022] In this embodiment, the bottom sealing mechanism 2 includes a shell 19 and an extension plate 20, the extension plate 20 is welded to the side of the shell 19, a docking sleeve 21 is welded to the top of the shell 19, a sealing ring 22 is screwed on the surface of the docking sleeve 21, and a second docking ring 36 is integrally formed at one end of the discharge oil pipe 4 inside the shell 19. A lever 23 is inserted on the side of the sealing ring 22, the discharge oil pipe 4 and the injection oil pipe 3 are both in a right-angle bending structure, the edge of the extension plate 20 is in an arc-shaped structure, and the bottom of the extension plate 20 is flush with the bottom surface of the shell 19. The top sealing mechanism 1 includes a cover plate 14, an inner sleeve 16 and an outer sleeve 8, the cover plate 14 is integrally formed at the end of the outer sleeve 8, the inner sleeve 16 is integrally formed at the bottom of the cover plate 14, and a first threaded hole 15 is opened on the surface of the cover plate 14. One end of the injection pipe 3 is provided with a plug-in pipe 17, and the end of the plug-in pipe 17 is integrally formed with a first docking ring 7, and the first docking ring 7 is used to press on the surface of the second docking ring 36. A threaded column 10 is inserted inside the threaded sleeve 9, and a rubbing wheel 11 is welded in the middle of the threaded column 10. A compression pad 12 is integrally screwed at the bottom of the threaded column 10, and a cone block 13 is inserted at the bottom of the compression pad 12, and the compression pad 12 is used to press on the surface of the extension plate 20. With the help of the extrusion force between the top and bottom sealing mechanisms 2, the extrusion force of the docking ring part, and the plug-in effect of the compression pad 12 and the cone block 13 part, the directional angles of the injection pipe 3 and the discharge pipe 4 can be locked at the same time from three different positions after the installation is completed, effectively preventing the entire joint part from loosening due to the vibration of the car.

[0023] Specifically, the inner sleeve 16 on the top sealing mechanism 1 is inserted into the interior of the docking sleeve 21, and the cover plate 14 is pressed on the top of the docking sleeve 21. At the same time, the plug-in tube 17 is also embedded in the interior of the outer shell 19, and the first docking ring 7 and the second docking ring 36 are pressed. During the plug-in process, the locking piece 5 is inserted toward the interior of the outer shell 19 along with the cover plate 14, and finally plugged with the movable connecting piece 6 part, and the locking piece 5 is rotated after the plug-in, so that the top sealing mechanism 1 and the bottom sealing mechanism 2 can be directly pressed and sealed. The threaded column 10 part at the bottom of the outer sleeve 8 drives the threaded column 10 to rotate by rotating the rubbing wheel 11, so that the bottom of the threaded column 10 extends downward, and finally the extrusion pad 12 at the bottom is pressed on the surface of the extension plate 20, and is embedded in the surface of the extension plate 20 with the help of the cone block 13, so that the top sealing mechanism 1 can be fixed at the top point through the threaded column 10, thereby achieving the purpose of locking the angle between the injection pipe 3 and the discharge pipe 4.

[0024] In this embodiment, the locking member 5 includes a boost ring 18 and a locking rod 24. The locking rod 24 passes through the surface of the boost ring 18. A bottom external thread structure 29 is provided on the outer side of the bottom of the locking rod 24. A magnetic column 28 is sleeved on the lower end of the surface of the locking rod 24. A top external thread structure 25 is provided above the surface of the locking rod 24. A knob 26 is integrally formed at the top of the locking rod 24. A pressure plate 27 is welded to the side of the locking rod 24. The pressure plate 27 is used to press on the surface of the boost ring 18. The boost ring 18 is used to press on the surface of the first docking ring 7. The locking member 5 at the center simultaneously realizes a thrust for squeezing the sealing structures of the top and bottom layers toward the middle, and also applies pressure to the docking ring portion that is connected between the injection pipe 3 and the discharge pipe 4, thereby achieving a multi-point squeezing effect, expanding the range of sealing pressure application, and enhancing the sealing effect.

[0025] Specifically, when the top sealing mechanism 1 and the bottom sealing mechanism 2 are connected, the bottom external thread structure 29 of each locking rod 24 is partially embedded in the second threaded hole 34, and before turning the knob 26, the entire top sealing mechanism 1 and the bottom sealing mechanism 2 can still perform relative rotational movement, so that the angle between the injection pipe 3 and the discharge pipe 4 can be flexibly controlled. After the angle adjustment is completed, the knob 26 is turned to drive the entire locking rod 24 to move downward with the help of the top external thread structure 25 and the first threaded hole 15, so that the pressure is applied to the booster ring 18 by pressing. The downward pressure enables the booster ring 18 to press the first docking ring 7 downward onto the surface of the second docking ring 36, and at the same time, with the help of the bottom external thread structure 29 inserted into the inside of the second threaded hole 34, the entire cover plate 14 is pressed onto the top of the docking sleeve and a large pressure is generated, so that the three sealing effects of the top sealing mechanism 1, the bottom sealing mechanism 2 and the docking ring part can be achieved simultaneously. After the installation is completed, the lever 23 is manually rotated to drive the sealing ring 22 to rotate and move upward until it rests against the bottom surface of the cover plate 14, so that the gap between the top sealing mechanism 1 and the bottom sealing mechanism 2 can be completely sealed.

[0026] In this embodiment, the slide groove 30 is annular in structure as a whole, and a slot 31 is provided on the inner wall of the slide groove 30. The movable connecting member 6 includes a movable ring 33 and a second threaded hole 34, and the second threaded hole 34 is provided on the surface of the movable ring 33. A magnetic baffle 32 is welded on the surface of the movable ring 33, and the cross section of the magnetic baffle 32 is a semicircular structure. A clamping plate 35 is welded on the side of the movable ring 33, and the clamping plate 35 is used to be embedded in the slot 31, and the bottom external thread structure 29 is embedded in the second threaded hole 34. The movable connecting member 6 at the bottom is connected with the top sealing mechanism 1 and the locking member 5. Therefore, before the docking is completed and the locking is not completely locked, the bottom sealing mechanism part can be directly rotated, thereby changing the angle between the injection pipe 3 and the discharge pipe 4, thereby realizing the stepless adjustment function, which is more flexible and expands the scope of application. At the same time, the magnetic baffle 32 on the movable connecting member 6 and the magnetic column 28 on the locking member 5 assist the insertion and positioning process of the locking member 5, thereby reducing the installation difficulty of the structure.

[0027] Specifically, after the locking piece 5 is embedded into the interior of the bottom sealing mechanism 2, since the interior of the shell 19 is completely blocked at this time, it is impossible to directly observe whether the bottom external thread structure 29 is partially aligned with the second threaded hole 34. Therefore, the bottom sealing mechanism 2 can be manually controlled to rotate, and the movable connecting piece 6 will be driven to rotate synchronously during the rotation until the magnetic baffle 32 collides with the surface of the magnetic column 28, which is also a columnar column. At this time, the magnetic column 28 can be positioned with the help of the magnetic baffle 32, and the central axis of the locking rod 24 can be ensured to be aligned with the central axis of the bottom second threaded hole 34. Then, after controlling the bottom sealing mechanism 2 to rotate to the required angle, the top sealing mechanism 1 is flushed and pushed downward, so that the bottom external thread structure 29 can be embedded into the interior of the second threaded hole 34.

[0028] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-pressure oil pipe joint with a sealing structure, comprising an oil pipe joint body, characterized in that: The oil pipe joint body comprises a top sealing mechanism (1), a bottom sealing mechanism (2), a locking member (5) and a movable connecting member (6); the top of the top sealing mechanism (1) is integrally formed with an outer sleeve (8); one end of the outer sleeve (8) is integrally formed with an oil injection pipe (3); the side of the bottom sealing mechanism (2) is integrally formed with an oil discharge pipe (4); the top sealing mechanism (1), the bottom sealing mechanism (2), the oil injection pipe (3) and the oil discharge pipe (4) are all made of rigid metal materials; the top sealing mechanism The end of the bottom sealing mechanism (1) is integrally formed with a cover plate (14), and a plurality of locking members (5) are inserted into the surface of the cover plate (14). The bottom end of the inner wall of the bottom sealing mechanism (2) is integrally formed with a slide groove (30), and a movable connecting member (6) is embedded in the inside of the slide groove (30). The end of each locking member (5) is embedded in the inside of the movable connecting member (6). The ends of the injection pipe (3) and the discharge pipe (4) are butt-connected and connected inside the bottom sealing mechanism (2), and a threaded sleeve (9) is provided at the bottom of the outer sleeve (8).

2. The high-pressure oil pipe joint with a sealing structure according to claim 1, characterized in that: The bottom sealing mechanism (2) comprises an outer shell (19) and an extension plate (20), wherein the extension plate (20) is welded to the side of the outer shell (19), a docking sleeve (21) is welded to the top of the outer shell (19), a sealing ring (22) is screwed on the surface of the docking sleeve (21), and a second docking ring (36) is integrally formed at one end of the discharge oil pipe (4) located inside the outer shell (19).

3. The high-pressure oil pipe joint with a sealing structure according to claim 2, characterized in that: A lever (23) is inserted into the side of the sealing ring (22); the oil discharge pipe (4) and the oil injection pipe (3) are both in a right-angled bending structure; the edge of the extension plate (20) is in an arc-shaped structure; and the bottom of the extension plate (20) is flush with the bottom surface of the housing (19).

4. The high-pressure oil pipe joint with a sealing structure according to claim 2, characterized in that: The top layer sealing mechanism (1) comprises a cover plate (14), an inner sleeve (16) and an outer sleeve (8); the cover plate (14) is integrally formed at the end of the outer sleeve (8); the inner sleeve (16) is integrally formed at the bottom of the cover plate (14); and a first threaded hole (15) is provided on the surface of the cover plate (14).

5. The high-pressure oil pipe joint with a sealing structure according to claim 4, characterized in that: One end of the oil injection pipe (3) is provided with a plug-in tube (17), and the end of the plug-in tube (17) is integrally formed with a first docking ring (7), and the first docking ring (7) is used to press on the surface of the second docking ring (36).

6. The high-pressure oil pipe joint with a sealing structure according to claim 5, characterized in that: A threaded column (10) is inserted inside the threaded sleeve (9), a rubbing wheel (11) is welded in the middle of the threaded column (10), a compression pad (12) is integrally screwed to the bottom of the threaded column (10), a cone block (13) is inserted at the bottom of the compression pad (12), and the compression pad (12) is used to press on the surface of the extension plate (20).

7. The high-pressure oil pipe joint with a sealing structure according to claim 5, characterized in that: The locking member (5) comprises a boost ring (18) and a locking rod (24), wherein the locking rod (24) passes through the surface of the boost ring (18), a bottom external thread structure (29) is provided on the outside of the bottom of the locking rod (24), a magnetic suction column (28) is sleeved on the lower end of the surface of the locking rod (24), and a top external thread structure (25) is provided above the surface of the locking rod (24).

8. The high-pressure oil pipe joint with a sealing structure according to claim 7, characterized in that: A knob (26) is integrally formed at the top end of the locking rod (24), and a pressure plate (27) is welded to the side of the locking rod (24), wherein the pressure plate (27) is used to press on the surface of the boost ring (18), and the boost ring (18) is used to press on the surface of the first docking ring (7).

9. The high-pressure oil pipe joint with a sealing structure according to claim 7, characterized in that: The slide groove (30) is annular in structure as a whole, and a slot (31) is provided on the inner wall of the slide groove (30). The movable connecting member (6) comprises a movable ring (33) and a second threaded hole (34), and the second threaded hole (34) is provided on the surface of the movable ring (33).

10. The high-pressure oil pipe joint with a sealing structure according to claim 9, characterized in that: A magnetic baffle (32) is welded to the surface of the movable ring (33), and the cross-section of the magnetic baffle (32) is a semicircular structure. A clamping plate (35) is welded to the side of the movable ring (33), and the clamping plate (35) is used to be embedded in the slot (31). The bottom external thread structure (29) is embedded in the second threaded hole (34).

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