A high-pressure oil pipe joint with a sealing structure

Abstract

The present invention provides a high-pressure oil pipe joint with a sealing structure, which relates to the technical field of pipe fittings joints. The oil pipe joint body includes a top sealing mechanism, a bottom sealing mechanism, a locking member and a movable connecting member. An outer sleeve is integrally formed at the top end of the top sealing mechanism. One end of the outer sleeve is integrally formed with an injection oil pipe. A discharge oil pipe is integrally formed on the side of the bottom sealing mechanism. The top sealing mechanism, the bottom sealing mechanism, the injection oil pipe and the discharge oil pipe are all made of rigid metal materials. In the present invention, the locking member in the center simultaneously applies a thrust force towards the middle to the sealing structures at the top and bottom layers, and also applies pressure to the docking ring part connecting the injection oil pipe and the discharge oil pipe, achieving multiple extrusion effects, expanding the range of sealing pressure application, enhancing the sealing effect, and being able to achieve stepless adjustment function, and effectively preventing the phenomenon of loosening caused by vibration.

Description

Technical Field

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

[0002] Automobile oil pipe joints are used to ensure firm connection and reliable sealing between oil pipes, 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 inlet oil pipe joint body in the fuel system of an automobile is a part that connects the inlet oil pipe and the oil pump, responsible for transporting fuel from the fuel tank to the engine to ensure the normal operation of the engine. If the inlet oil 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 in the automobile power compartment, the installation range and angle available for oil pipe joints are also greatly restricted. This results in oil pipe joints having multiple bending angles, and for alloy-structured oil pipe joints, each specification can only provide a single bending angle, with a single application range. Moreover, the surface of conventional high-pressure oil pipe joints achieves the sealing purpose by sleeving a sealing sleeve. However, there are a large number of fitting gaps in the spliced sealing sleeve, and it is impossible to simultaneously achieve the effects of fully enclosing and shielding the fitting area and infinitely adjusting the angle. Summary of the Invention

[0004] Aiming at the deficiencies of 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 background art. The present invention uses a locking member in the center to simultaneously apply a pushing force towards the middle to the sealing structures on the top layer and the bottom layer, and also applies pressure to the docking ring part that connects the injection oil pipe and the discharge oil pipe, achieving multiple extrusion effects, expanding the sealing pressure application range, enhancing the sealing effect, and being able to achieve an infinitely adjustable 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] Further, a knob is integrally formed at the top end of the locking rod, and a pressing plate is welded to the side of the locking rod. The pressing plate is used to press on the surface of the pressure increasing ring, and the pressure increasing ring is used to press on the surface of the first docking ring.

[0013] Further, the sliding groove is integrally in a ring structure, and a slot is formed on the inner wall of the sliding groove. The movable connecting piece includes a movable ring and a second threaded hole, and the second threaded hole is formed on the surface of the movable ring.

[0014] Further, a magnetic attraction baffle is welded to the surface of the movable ring, and the cross section of the magnetic attraction baffle is in a semi-circular structure. A clamping plate is welded to the side of the movable ring. The clamping plate is used to be embedded into the inside of the slot, and the bottom external thread structure is embedded into the inside of the second threaded hole.

[0015] Advantages of the present invention:

[0016] 1. The high-pressure oil pipe joint with a sealing structure realizes the thrust of squeezing towards the middle on the sealing structures of the top layer and the bottom layer through the locking piece in the center, and at the same time applies pressure to the docking ring part that connects the injection oil pipe and the discharge oil pipe, achieving the extrusion effect at multiple places, expanding the range of application of the sealing pressure, and enhancing the sealing effect.

[0017] 2. The high-pressure oil pipe joint with a sealing structure is connected to the top layer sealing mechanism and the locking piece part through the movable connecting piece at the bottom. Therefore, before the docking is completed and not fully locked, the bottom sealing mechanism part can be directly rotated, so as to change the included angle between the injection oil pipe and the discharge oil pipe, thus realizing the stepless adjustment function, with higher flexibility, expanding the scope of application. At the same time, the magnetic attraction baffle on the movable connecting piece and the magnetic attraction column on the locking piece assist the insertion and positioning process of the locking piece, reducing the installation difficulty of this structure.

[0018] 3. The high-pressure oil pipe joint with a sealing structure can lock the pointing angles of the injection oil pipe and the discharge oil pipe simultaneously from three different positions after installation by virtue of the extrusion force between the top layer and the bottom layer sealing mechanisms, the extrusion force of the docking ring part, and the insertion effect of the extrusion pad and the cone block part, effectively preventing the loosening of the entire joint part due to the vibration of the vehicle. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the outer shape of a high-pressure oil pipe joint with a sealing structure according to the present invention;

[0020] Figure 2 It is a side sectional view of a high-pressure oil pipe joint with a sealing structure according to the present invention;

[0021] Figure 3This is a schematic diagram of the structure of the top sealing mechanism of the present invention;

[0022] Figure 4 This is an exploded view of the bottom sealing mechanism of the present invention;

[0023] Figure 5 This is an installation schematic diagram of the locking member part of the present invention;

[0024] Figure 6 is Figure 2 an enlarged view of area A in

[0025] Figure 7 This is a schematic diagram of the structure of the movable connecting member part of the present invention;

[0026] In the figure: 1. Top sealing mechanism; 2. Bottom sealing mechanism; 3. Injection oil pipe; 4. Discharge oil pipe; 5. Locking member; 6. Movable connecting member; 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. Insertion pipe; 18. Booster ring; 19. Outer shell; 20. Extension plate; 21. Docking sleeve; 22. Sealing ring; 23. Pushing rod; 24. Locking rod; 25. Top external thread structure; 26. Knob; 27. Pressing plate; 28. Magnetic attraction column; 29. Bottom external thread structure; 30. Slide groove; 31. Slot; 32. Magnetic attraction baffle; 33. Movable ring; 34. Second threaded hole; 35. Clamping plate; 36. Second docking ring. Detailed implementation manners

[0027] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0028] Please refer to Figures 1 to 7, the present invention provides the following technical solutions: a high-pressure oil pipe joint with a sealing structure, including an oil pipe joint body, the oil pipe joint body includes 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 oil pipe 3. The side of the bottom sealing mechanism 2 is integrally formed with a discharge oil pipe 4. The top sealing mechanism 1, the bottom sealing mechanism 2, the injection oil pipe 3 and the discharge oil pipe 4 are all made of rigid metal materials. The end of the top sealing mechanism 1 is integrally formed with a cover plate 14. A plurality of locking members 5 are inserted through the surface of the cover plate 14. The inner wall bottom end of the bottom sealing mechanism 2 is integrally formed with a sliding groove 30. The movable connecting member 6 is embedded in the sliding groove 30. The end of each locking member 5 is embedded into the movable connecting member 6. The ends of the injection oil pipe 3 and the discharge oil pipe 4 are butt-connected and communicated inside the bottom sealing mechanism 2. A threaded sleeve 9 is opened at the bottom of the outer sleeve 8. This high-pressure oil pipe joint is used for connecting two different oil pipes inside an automobile.

[0029] When the present invention is installed, first connect the injection oil pipe 3 with one of the oil fluid conveying pipelines. Then, the top sealing mechanism 1 at the end of the injection oil pipe 3 can be inserted into the bottom sealing mechanism 2. After insertion, control the bottom of the locking member 5 to be butt-connected with part of the movable connecting member 6. Use a tool to rotate the locking member 5, and the top sealing mechanism 1 and the bottom sealing mechanism 2 can be pressed and locked through the locking member 5 to achieve the sealing treatment inside the sealing mechanism. At the same time, the locking member 5 is also used to provide a squeezing effect on the two butt rings inside synchronously, and the inside of the injection oil pipe 3 and the discharge oil pipe 4 can be sealed again. Finally, control the threaded column 10 to press on the surface of the extension plate 20, and the angle locking function between the top sealing mechanism 1 and the bottom sealing mechanism 2 can be achieved. At this time, the installation process of the oil pipe joint is completed, and after installation, connect the discharge oil pipe 4 with another conveying pipeline.

[0030] In this embodiment, the bottom sealing mechanism 2 includes a housing 19 and an extension plate 20. The extension plate 20 is welded to the side of the housing 19. A docking sleeve 21 is welded to the top of the housing 19. A sealing ring 22 is screwed onto the surface of the docking sleeve 21. One end of the discharge oil pipe 4 inside the housing 19 is integrally formed with a second docking ring 36. A lever 23 is inserted into the side of the sealing ring 22. The discharge oil pipe 4 and the injection oil pipe 3 as a whole 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. 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. A first threaded hole 15 is formed in the surface of the cover plate 14. One end of the injection oil pipe 3 is provided with an insertion pipe 17. A first docking ring 7 is integrally formed at the end of the insertion pipe 17. The first docking ring 7 is used to press on the surface of the second docking ring 36. A threaded column 10 is inserted into the internal thread sleeve 9. A rubbing wheel 11 is welded in the middle of the threaded column 10. The bottom of the threaded column 10 is integrally screwed with a pressing pad 12. A cone 13 is inserted into the bottom of the pressing pad 12. The pressing pad 12 is used to press on the surface of the extension plate 20. With the extrusion force between the top and bottom sealing mechanisms 2, the extrusion force of the docking ring part, and the insertion effect of the pressing pad 12 and the cone 13 parts, the pointing angles of the injection oil pipe 3 and the discharge oil pipe 4 can be locked simultaneously from three different positions after installation, effectively preventing the entire joint part from becoming loose due to vehicle vibration.

[0031] Specifically, insert the inner sleeve 16 on the top sealing mechanism 1 into the internal of the docking sleeve 21, and press the cover plate 14 on the top of the docking sleeve 21. At the same time, the insertion pipe 17 will also be embedded into the internal of the housing 19, and the first docking ring 7 and the second docking ring 36 will be pressed. During the insertion process, the locking member 5 is inserted into the internal of the housing 19 along with the cover plate 14, and finally is inserted into the movable connecting member 6 part. After the insertion, rotate the locking member 5, and the top sealing mechanism 1 and the bottom sealing mechanism 2 can be directly pressed and sealed. For the threaded column 10 part at the bottom of the outer sleeve 8, rotate the rubbing wheel 11 to drive the threaded column 10 to rotate, so that the bottom of the threaded column 10 extends downward. Finally, the bottom pressing pad 12 is pressed on the surface of the extension plate 20, and with the cone 13 embedded into the surface of the extension plate 20, the top sealing mechanism 1 can be fixed at the abutted position through the threaded column 10, thus achieving the purpose of locking the included angle between the injection oil pipe 3 and the discharge oil pipe 4.

[0032] In this embodiment, the locking member 5 includes a pressure boosting ring 18 and a locking rod 24. The locking rod 24 passes through the surface of the pressure boosting ring 18. A bottom external thread structure 29 is provided on the outer side of the bottom of the locking rod 24. A magnetic attraction 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 end of the locking rod 24. A pressing plate 27 is welded to the side of the locking rod 24. The pressing plate 27 is used to press on the surface of the pressure boosting ring 18, and the pressure boosting ring 18 is used to press on the surface of the first docking ring 7. The locking member 5 at the center simultaneously exerts a thrust force towards the middle on the sealing structures of the top layer and the bottom layer, and at the same time applies pressure to the docking ring part connecting the injection oil pipe 3 and the discharge oil pipe 4, achieving a multi-point pressing effect, expanding the range of sealing pressure application, and enhancing the sealing effect.

[0033] Specifically, when docking the top layer sealing mechanism 1 and the bottom layer sealing mechanism 2, the bottom external thread structure 29 part at the bottom of each locking rod 24 is embedded into the interior of the second threaded hole 34. And before rotating the knob 26, the entire top layer sealing mechanism 1 and bottom layer sealing mechanism 2 can still perform relative rotational movement, enabling flexible control of the angle between the injection oil pipe 3 and the discharge oil pipe 4. Until the angle adjustment is completed, rotate the knob 26, and then the entire locking rod 24 can be driven to move downward by means of the cooperation of the top external thread structure 25 and the first threaded hole 15. Therefore, downward pressure is applied to the pressure boosting ring 18 by means of pressing, so that the pressure boosting ring 18 can press the first docking ring 7 downward onto the surface of the second docking ring 36. At the same time, the entire cover plate 14 is also pressed onto the top of the docking sleeve and a large pressure is generated by inserting the bottom external thread structure 29 into the interior of the second threaded hole 34, thus simultaneously achieving the sealing effects at three places of the top layer sealing mechanism 1, the bottom layer sealing mechanism 2, and the docking ring part. After the installation is completed, manually rotate the lever 23 to drive the sealing ring 22 to rotate upward until it abuts against the bottom surface of the cover plate 14, then the gap between the top layer sealing mechanism 1 and the bottom layer sealing mechanism 2 can be completely blocked.

[0034] In this embodiment, the chute 30 is integrally in an annular structure, and a slot 31 is formed on the inner wall of the chute 30. The movable connecting member 6 includes a movable ring 33 and a second threaded hole 34, and the second threaded hole 34 is formed on the surface of the movable ring 33. A magnetic attraction baffle 32 is welded on the surface of the movable ring 33, and the cross section of the magnetic attraction baffle 32 is in a semi-circular 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 into the slot 31. The bottom external thread structure 29 is embedded into the second threaded hole 34. The movable connecting member 6 at the bottom is connected to the top sealing mechanism 1 and the locking member 5. Therefore, before the docking is completed and not fully locked, the bottom sealing mechanism can be directly rotated, so as to change the included angle between the injection oil pipe 3 and the discharge oil pipe 4, thereby realizing the stepless adjustment function, with higher flexibility, expanding the applicable range. At the same time, the magnetic attraction baffle 32 on the movable connecting member 6 and the magnetic attraction column 28 on the locking member 5 are used to assist the insertion and positioning process of the locking member 5, reducing the installation difficulty of this structure.

[0035] Specifically, after the locking member 5 is embedded into the bottom sealing mechanism 2, since the inside of the outer shell 19 is completely blocked at this time, it is impossible to directly observe whether the bottom external thread structure 29 is aligned with the second threaded hole 34. Therefore, the bottom sealing mechanism 2 can be manually controlled to rotate. When rotating, the movable connecting member 6 will be driven to rotate synchronously until the magnetic attraction baffle 32 collides with the surface of the magnetic attraction column 28 which is also in a column shape during the rotation. At this time, the magnetic attraction column 28 can be positioned by means of the magnetic attraction baffle 32, and it can be ensured that the central axis of the locking rod 24 is 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 included angle, the top sealing mechanism 1 is pushed down by flushing, and the bottom external thread structure 29 can be embedded into the second threaded hole 34.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. 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 can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0037] In addition, it should be understood that although this specification is described according to embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments 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); and 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 (1) is integrally formed with a cover plate (14) at the end thereof, and a plurality of locking members (5) are inserted through 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-jointed and connected inside the bottom sealing mechanism (2). The outer sleeve (8 ) is provided with a threaded sleeve (9) at the bottom, the locking member (5) comprises 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 outside 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), the slide groove (30) is annular in structure as a whole, and an insert 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), wherein the second threaded hole (34) is formed 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 interior of the slot (31), and the bottom external thread structure (29) is embedded in the interior of the second threaded hole (34).

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 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). A first threaded hole (15) is formed 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 injection oil pipe (3) is provided with an insertion pipe (17). A first docking ring (7) is integrally formed at the end of the insertion pipe (17). 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 into the threaded sleeve (9). A rubbing wheel (11) is welded in the middle of the threaded column (10). An extrusion pad (12) is integrally screwed at the bottom of the threaded column (10). A tapered block (13) is inserted at the bottom of the extrusion pad (12). The extrusion 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 1, wherein: A knob (26) is integrally formed at the top of the locking rod (24). A pressing plate (27) is welded on the side of the locking rod (24). The pressing plate (27) is used to press on the surface of the pressure increasing ring (18). The pressure increasing ring (18) is used to press on the surface of the first docking ring (7).

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