An engine oil pipe joint with high sealing performance

Abstract

This utility model discloses a high-sealing engine oil pipe connector, relating to the field of oil pipe connector technology. It includes an oil tank and an oil pipe interface on the right side of the oil tank. A connecting oil pipe connector is provided on the right side of the oil pipe interface, and a sealing gasket is installed at the left front end of the connecting oil pipe connector. A sealing groove is formed in the middle of the connecting oil pipe connector, and a compression-type sealing ring is installed on the sealing groove. A high-sealing mechanism is provided inside the oil pipe interface. This high-sealing engine oil pipe connector allows the connecting oil pipe connector to be accurately inserted into the oil pipe interface on the oil tank. The pre-installed sealing gasket on the connecting oil pipe connector will tightly fit against the left end of the oil pipe interface, preventing loosening or separation due to vibration or other reasons during use. This ensures that the stability and sealing performance of the oil pipe connection remain good at all times. The use of a compression-type airbag spiral sealing ring greatly improves the sealing performance of the oil pipe connector.

Description

Technical Field

[0001] This utility model relates to the field of oil pipe joint technology, specifically to a high-sealing engine oil pipe joint. Background Technology

[0002] In the field of engines, oil pipe fittings are key components connecting oil pipes to various engine parts, and their performance directly affects the engine's efficiency, reliability, and safety. However, existing oil pipe fittings have some significant problems during use.

[0003] In terms of sealing, traditional fuel line fittings mostly rely on simple flat sealing rings or ordinary rubber seals. These types of seals often show significant shortcomings when dealing with the high temperatures, high pressures, and frequent vibrations generated during engine operation. Due to the thermal expansion and contraction properties of the materials and the aging process after long-term use, the sealing effect gradually decreases, easily leading to fuel leakage.

[0004] For example, a tubing joint sealing connection structure disclosed in CN102563251A includes a left joint and a right joint that are mated together. The left joint has a protruding end, and the right joint has a recessed end. The protruding end is mated within the recessed end, and a gasket is placed between the protruding end and the mating wall of the recessed end. The inner diameter of the gasket is the same as the inner diameter of the left and right joints. This provides a tubing joint sealing connection structure with good sealing effect and easy installation.

[0005] The aforementioned oil pipe joint sealing connection structure is too laborious to use and cannot be quickly connected to the fuel tank. Furthermore, it has other problems, such as the ease of installation and disassembly. The existing oil pipe joint structure is complex, typically requiring multiple specialized tools and highly skilled and experienced operators. This not only consumes a significant amount of time and manpower, reducing work efficiency, but also easily damages the oil pipe joint and surrounding components during installation and disassembly. Especially in emergency situations, such as when the oil pipe joint malfunctions while the vehicle is in motion and requires rapid replacement, the existing design often cannot respond quickly enough, leading to prolonged vehicle downtime and causing significant inconvenience and economic losses for users. Utility Model Content

[0006] The purpose of this invention is to provide a high-sealing engine oil pipe joint to solve the problems mentioned in the background art, such as the sealing connection structure being too laborious and the oil pipe joint being too time-consuming and laborious to install and disassemble.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-sealing engine oil pipe joint, including an oil tank and an oil pipe interface opened on the right side of the oil tank, a connecting oil pipe joint is provided on the right side of the oil pipe interface, and a sealing gasket is installed on the left front end of the connecting oil pipe joint, and a sealing groove is opened in the middle of the connecting oil pipe joint, and a compression-type sealing ring is installed on the sealing groove of the connecting oil pipe joint, and a high-sealing mechanism is provided inside the oil pipe interface;

[0008] The right end of the connecting oil pipe joint is fixedly installed with an insertion type connector, and the insertion type connector is provided with a first pair of connectors inside. The left end of the first pair of connectors is fixedly installed with a first connecting spring, and the other end of the first connecting spring is installed inside the insertion type connector. The right end of the connecting oil pipe joint is provided with a quick installation and removal mechanism.

[0009] Furthermore, the high sealing mechanism includes a spiral sealing ring installed on the outer surface of the connecting oil pipe joint, a "T" shaped groove is provided at the left end of the connecting oil pipe joint, and a compression airbag is bonded and installed in the "T" shaped groove inside the connecting oil pipe joint. The compression airbag is arc-shaped, and four compression airbags are evenly distributed around the connecting oil pipe joint as the rotation center.

[0010] Furthermore, a pressure ring is nested in the "T"-shaped groove inside the docking oil pipe joint, and the right end of the pressure ring corresponds to the left end of the compression air bladder. A return spring is installed on the right end of the pressure ring, and the other end of the return spring is installed in the "T"-shaped groove inside the docking oil pipe joint.

[0011] Furthermore, a connecting pipe is installed through the right end of the compression airbag, and a sealing airbag is installed through the other end of the connecting pipe. The sealing airbag is installed in the middle of the connecting oil pipe joint, and a compression-shaped sealing ring is correspondingly installed at the left end of the sealing airbag.

[0012] Furthermore, the quick-release mechanism is equipped with a receiving connector installed on the right end of the insert connector, and a switch cylinder is installed on the outer side of the left end of the receiving connector. A compression spring is installed inside the switch cylinder, and the right end of the compression spring is fixedly installed on the receiving connector. A spherical slot is opened on the left side of the receiving connector, and eight spherical slots are evenly distributed on the receiving connector.

[0013] Furthermore, a fixed ball is nested in the spherical groove on the receiving connector, and the boss inside the switch cylinder corresponds to the fixed ball, and the lower end of the fixed ball corresponds to the insert connector.

[0014] Furthermore, the receiving connector has a second pair of connectors inside, and a second mating spring is fixedly installed at the right end of the second pair of connectors. The other end of the second mating spring is installed inside the receiving connector. The right end of the first pair of connectors corresponds to the left end of the second pair of connectors. The receiving connector is equipped with a cylindrical sealing ring, and the inner ring of the cylindrical sealing ring is attached to the right side of the insertion connector. An oil outlet pipe is installed on the right side of the receiving connector.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the engine oil pipe joint with high sealing performance;

[0016] 1. The oil pipe connector is accurately inserted into the oil pipe interface on the oil tank. During insertion, the pre-installed sealing gasket on the oil pipe connector will fit tightly against the left end of the oil pipe interface, forming the first line of defense for sealing. The function of this sealing gasket is to effectively prevent oil from leaking out from this side. The extrusion-type sealing ring located on the upper surface of the oil pipe connector will gradually deform against the right side of the inner surface of the oil pipe interface during insertion. This extrusion-type sealing ring can adapt to the shape changes of the right side of the interface, maintaining good sealing performance under different operating conditions, preventing the two from loosening or separating due to vibration or other reasons during use, and ensuring that the stability and sealing of the oil pipe connection are always in good condition. The use of the extrusion airbag spiral sealing ring greatly improves the sealing performance of the oil pipe connector.

[0017] Furthermore, this unique design can adaptively adjust the sealing level in real time according to changes in pressure and temperature inside the oil pipe, ensuring effective prevention of fuel leakage under various extreme operating conditions. This not only significantly reduces fuel waste and saves operating costs, but also fundamentally eliminates the safety hazard of fires caused by fuel leaks.

[0018] Furthermore, the excellent sealing performance effectively prevents the intrusion of external impurities, moisture, and dust, ensuring the purity of the fuel, greatly reducing the wear of internal engine parts, extending the engine overhaul interval and service life, and reducing maintenance costs and downtime.

[0019] 2. When the user needs to disconnect, pull the switch cylinder to the right. At this time, the switch cylinder gradually releases the pressure on the retaining ball. As the pressure disappears, the retaining ball no longer presses against the outer surface of the insert connector. Then, the receiving connector end can be pulled outwards. During the pulling process, the second mating spring located inside the receiving connector end applies pressure to the second pair of connectors, causing them to fit tightly together, thus sealing the left end of the receiving connector end. After completing the above operations, release the switch cylinder. At this time, the compression spring acts, pushing the switch cylinder back to its initial position, achieving reset. This improves the efficiency of maintenance and repair, especially in emergency situations, enabling quick replacement of oil pipe connectors and ensuring the normal operation of the engine.

[0020] Furthermore, regarding ease of installation and disassembly, a press-type ball-shaped fixing device has been introduced, enabling quick connection and disconnection of oil pipes, making operation extremely simple and fast. This design greatly shortens the time required for oil pipe installation and disassembly, significantly improving the efficiency of maintenance and repair. Especially in emergency situations, it allows for rapid replacement of oil pipe joints, ensuring the engine quickly returns to normal operation and reducing losses caused by vehicle downtime. A meticulous design also includes features to prevent dust accumulation on the fuel tank. Attached Figure Description

[0021] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the oil pipe interface of this utility model;

[0023] Figure 3 This is a three-dimensional half-section structural diagram of the butt joint oil pipe connector of this utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the switch cylinder of this utility model in half section;

[0025] Figure 5 This is a three-dimensional structural diagram of the receiving connector end of this utility model;

[0026] Figure 6 This is a three-dimensional structural diagram of the insertion connector of this utility model.

[0027] In the diagram: 1. Oil tank; 2. Oil pipe interface; 3. Butt oil pipe joint; 4. Sealing gasket; 5. Extrusion seal ring; 6. Insertion joint; 7. First butt joint; 8. First butt spring; 9. Spiral seal ring; 10. Extrusion airbag; 11. Pressure ring; 12. Return spring; 13. Butt joint; 14. Sealing airbag; 15. Socket joint end; 16. Switch cylinder; 17. Extrusion spring; 18. Fixed ball; 19. Second butt joint; 20. Second butt spring; 21. Cylindrical seal ring; 22. Oil outlet pipe. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1: Please refer to Figures 1-6The present invention provides the following technical solution: a high-sealing engine oil pipe joint, comprising an oil tank 1, an oil pipe interface 2, a mating oil pipe joint 3, a sealing gasket 4, a compression-type sealing ring 5, an insertion-type joint 6, a first mating joint 7, a first mating spring 8, a spiral-wound sealing ring 9, a compression airbag 10, a pressure ring 11, a return spring 12, a mating pipe 13, a sealing airbag 14, a receiving-type joint end 15, a switch cylinder 16, a compression spring 17, a fixed ball 18, a second mating joint 19, a second mating spring 20, a cylindrical sealing ring 21, and an oil outlet pipe 22.

[0030] It includes an oil tank 1 and an oil pipe interface 2 opened on the right side of the oil tank 1. A connecting oil pipe joint 3 is provided on the right side of the oil pipe interface 2, and a sealing gasket 4 is installed on the front left side of the connecting oil pipe joint 3. A sealing groove is opened in the middle of the connecting oil pipe joint 3, and a compression sealing ring 5 is installed on the sealing groove of the connecting oil pipe joint 3. A high sealing mechanism is provided inside the oil pipe interface 2.

[0031] An insert-type connector 6 is fixedly installed on the right end of the connecting oil pipe connector 3, and a first pair of connectors 7 is provided inside the insert-type connector 6. A first connecting spring 8 is fixedly installed on the left end of the first pair of connectors 7, and the other end of the first connecting spring 8 is installed inside the insert-type connector 6. A quick-release mechanism is provided on the right end of the connecting oil pipe connector 3.

[0032] The high-sealing mechanism includes a spiral-wound sealing ring 9 mounted on the outer surface of the connecting oil pipe joint 3. A "T"-shaped groove is provided at the left end of the connecting oil pipe joint 3, and a compression airbag 10 is bonded and installed inside the "T"-shaped groove of the connecting oil pipe joint 3. The compression airbag 10 is arc-shaped, and four compression airbags 10 are evenly distributed around the connecting oil pipe joint 3 as its rotation center. A pressure ring 11 is nested inside the "T"-shaped groove of the connecting oil pipe joint 3, with the right end of the pressure ring 11 corresponding to the left end of the compression airbag 10. A return spring 12 is installed at the right end of the pressure ring 11, and the other end of the return spring 12 is installed inside the "T"-shaped groove of the connecting oil pipe joint 3. A connecting pipe 13 is installed through the right end of the compression airbag 10, and a sealing airbag 14 is installed through the other end of the connecting pipe 13. The sealing airbag 14 is installed in the middle of the connecting oil pipe joint 3, and a compression-shaped sealing ring 5 is located at the left end of the sealing airbag 14.

[0033] When the user performs the oil pipe connection operation, the connecting oil pipe connector 3 must be accurately inserted into the oil pipe interface 2 on the oil tank 1. During the insertion process, the sealing gasket 4 pre-installed on the connecting oil pipe connector 3 will fit tightly against the left end of the inside of the oil pipe interface 2, forming the first line of sealing. The function of this sealing gasket 4 is to effectively prevent oil from leaking out from this side. The extrusion-shaped sealing ring 5 located on the upper surface of the connecting oil pipe connector 3 will gradually deform against the right side of the inner surface of the oil pipe interface 2 during the insertion action. This extrusion-shaped sealing ring 5 can adapt to the shape change of the right side of the interface. When the connecting oil pipe connector 3 is inserted into the oil pipe interface 2, the spiral sealing ring 9 will contact and tightly wrap with the middle part of the inner surface of the oil pipe interface 2, forming another layer of sealing protection. With its special spiral structure, the spiral sealing ring 9 can fill any small gaps that may exist in this area, further enhancing the overall sealing effect. It is worth noting that when the pressure ring 11 at the left end of the connecting oil pipe connector 3 is fully inserted into the inside of the oil pipe interface 2, it will exert a squeezing effect on the inside of the oil pipe interface 2. Due to this compression, the pressure ring 11 applies pressure to the compression airbag 10. After being compressed by the pressure ring 11, the gas inside the compression airbag 10 is transmitted to the sealing airbag 14 through the connected connecting pipe 13. Upon receiving the gas, the sealing airbag 14 rapidly inflates. The inflated sealing airbag 14 tightly fits the rightmost space inside the oil pipe interface 2, forming the final sealing barrier and completely eliminating the possibility of oil leakage from that side. Furthermore, in its inflated state, the sealing airbag 14 also serves to fix the oil pipe interface 2 and the connecting oil pipe joint 3, preventing them from loosening or separating during use due to vibration or other reasons, ensuring that the stability and sealing of the oil pipe connection remain in good condition at all times.

[0034] The quick-release mechanism is equipped with a receiving connector end 15 mounted on the right end of the insert connector 6, and a switch cylinder 16 is mounted on the outer left side of the receiving connector end 15. A compression spring 17 is installed inside the switch cylinder 16, and the right end of the compression spring 17 is fixedly mounted on the receiving connector end 15. Eight spherical slots are evenly distributed on the left side of the receiving connector end 15. A fixing ball 18 is nested within the spherical slot on the receiving connector end 15, and the boss inside the switch cylinder 16 corresponds to the fixing ball 18. The lower end of the fixing ball 18 corresponds to the insert connector 6. The receiving connector end 15 has a second pair of connectors 19 inside, and a second mating spring 20 is fixedly installed on the right end of the second pair of connectors 19. The other end of the second mating spring 20 is installed inside the receiving connector end 15. The right end of the first pair of connectors 7 corresponds to the left end of the second pair of connectors 19. A cylindrical sealing ring 21 is installed on the receiving connector end 15, and the inner ring of the cylindrical sealing ring 21 is attached to the right side of the insertion connector 6. An oil outlet pipe 22 is installed on the right side of the receiving connector end 15.

[0035] When the user needs to disconnect, pull the switch cylinder 16 to the right. At this time, the switch cylinder 16 gradually releases its pressure on the retaining ball 18. As the pressure disappears, the retaining ball 18 no longer presses against the outer surface of the insert connector 6. Then, the receiving connector end 15 can be pulled outwards. During this pulling process, the second mating spring 20 inside the receiving connector end 15 applies pressure to the second mating connector 19, causing the second mating connector 19 to fit tightly, thereby sealing the left end of the receiving connector end 15. Simultaneously, the first mating spring 8 inside the insert connector 6 also compresses the first mating connector 7, causing the first mating connector 7 to seal the left end of the insert connector 6. After completing the above operations, release the switch cylinder 16. At this time, the compression spring 17 acts, pushing the switch cylinder 16 back to its initial position, achieving reset. To reconnect, insert the insert connector 6 into the receiving connector end 15. During insertion, the first pair of connectors 7 inside the insert connector 6 comes into contact with and is compressed by the second pair of connectors 19 inside the receiving connector end 15. Furthermore, the cylindrical sealing ring 21 installed on the receiving connector end 15 tightly fits the connection between the insert connector 6 and the receiving connector end 15 during the connection process, achieving a good sealing effect. The retaining ball 18 on the receiving connector end 15 then plays a fixing role, firmly securing the insert connector 6 and ensuring a stable connection. Oil then flows out from the oil outlet pipe 22.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-sealing engine oil pipe joint, comprising an oil tank (1) and an oil pipe interface (2) opened on the right side of the oil tank (1), characterized in that: The right side of the oil pipe interface (2) is provided with a connecting oil pipe joint (3), and a sealing gasket (4) is installed at the left front end of the connecting oil pipe joint (3). A sealing groove is opened in the middle of the connecting oil pipe joint (3), and a compression sealing ring (5) is installed on the sealing groove of the connecting oil pipe joint (3). A high sealing mechanism is provided inside the oil pipe interface (2). The right end of the connecting oil pipe joint (3) is fixedly installed with an insertion joint (6), and the insertion joint (6) is provided with a first pair of joints (7). The left end of the first pair of joints (7) is fixedly installed with a first docking spring (8), and the other end of the first docking spring (8) is installed inside the insertion joint (6). The right end of the connecting oil pipe joint (3) is provided with a quick installation and removal mechanism.

2. The high-sealing engine oil pipe joint according to claim 1, characterized in that: The high sealing mechanism includes a spiral sealing ring (9) installed on the outer surface of the connecting oil pipe joint (3). The left end of the connecting oil pipe joint (3) is provided with a "T" shaped groove, and a compression airbag (10) is bonded and installed in the "T" shaped groove inside the connecting oil pipe joint (3). The compression airbag (10) is arc-shaped, and four compression airbags (10) are evenly distributed around the connecting oil pipe joint (3) as the rotation center.

3. The high-sealing engine oil pipe joint according to claim 2, characterized in that: The pressure ring (11) is nested in the "T" shaped groove inside the docking oil pipe joint (3), and the right end of the pressure ring (11) corresponds to the left end of the compression air bladder (10). A return spring (12) is installed on the right end of the pressure ring (11), and the other end of the return spring (12) is installed in the "T" shaped groove inside the docking oil pipe joint (3).

4. The high-sealing engine oil pipe joint according to claim 3, characterized in that: The right end of the compression airbag (10) is connected to the connecting pipe (13), and the other end of the connecting pipe (13) is connected to the sealing airbag (14). The sealing airbag (14) is installed in the middle of the connecting oil pipe joint (3), and the left end of the sealing airbag (14) is connected to the compression sealing ring (5).

5. The high-sealing engine oil pipe joint according to claim 1, characterized in that: The quick assembly and disassembly mechanism is equipped with a receiving connector (15) installed on the right end of the insert connector (6), and a switch cylinder (16) is installed on the outer side of the left end of the receiving connector (15). A compression spring (17) is provided inside the switch cylinder (16), and the right end of the compression spring (17) is fixedly installed on the receiving connector (15). A spherical slot is opened on the left side of the receiving connector (15), and the spherical slots are evenly distributed on eight of the receiving connectors (15).

6. The high-sealing engine oil pipe joint according to claim 5, characterized in that: The spherical groove on the receiving connector (15) is fitted with a fixed ball (18), and the boss inside the switch cylinder (16) corresponds to the fixed ball (18), and the lower end of the fixed ball (18) corresponds to the insert connector (6).

7. The high-sealing engine oil pipe joint according to claim 6, characterized in that: The receiving connector (15) is provided with a second pair of connectors (19) inside, and a second docking spring (20) is fixedly installed on the right end of the second pair of connectors (19). The other end of the second docking spring (20) is installed inside the receiving connector (15). The right end of the first pair of connectors (7) corresponds to the left end of the second pair of connectors (19). The receiving connector (15) is equipped with a cylindrical sealing ring (21), and the inner ring of the cylindrical sealing ring (21) is attached to the right side of the insertion connector (6). An oil outlet pipe (22) is installed on the right side of the receiving connector (15).

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