Leakage-proof sealing joint of oil return pipe of supercharger

Abstract

The utility model relates to the technical field of superchargers, in particular to a leak-proof sealing joint of an oil return pipe of a supercharger, which comprises an oil return pipe head and an oil return hole pipe seat, a butt-joint clamping groove is arranged at one end of the inner wall of the oil return hole pipe seat, and the middle position of the inner wall of the butt-joint clamping groove is designed to be in a 45-degree oblique angle shape. A butt-joint clamping ring attached to the inner wall of the butt-joint clamping groove is fixed to one end of the oil return pipe head, annular grooves are formed in the inclined face of the inner wall of the butt-joint clamping groove and the inclined face of the outer wall of the butt-joint clamping ring, annular sealing air bag rings are arranged in the two annular grooves, and a first installation flange base is fixed to one end of the circumferential outer wall of the oil return pipe head. According to the sealing joint, the installation positioning performance and the preliminary installation sealing performance are achieved, gas in the gas storage cavity is pushed to enter the annular sealing gas bag ring, and therefore the annular sealing gas bag ring is expanded, sealing butt joint of the whole joint structure is guaranteed, the sealing performance of the whole sealing joint is improved, and the tight attaching performance is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of superchargers, in particular to a leak-proof sealing joint of an oil return pipe of a supercharger. Background Art

[0002] The supercharger oil return pipe is the lubricating oil inlet of the supercharger and is an important component to ensure the effective lubrication of the supercharger. The excess oil can be returned to the fuel tank through the oil return pipe, which can relieve the pressure of gasoline and reduce fuel consumption. The pipe joint is an important connecting component of the oil return pipe, which can ensure the sealing of the oil return pipe during the oil flow process.

[0003] After searching, the patent publication number CN213235217U is a turbocharger return oil pipe fastening and sealing structure, which includes a turbocharger return oil hole mounting flange, an oil return pipeline and a mounting flange, the turbocharger return oil hole mounting flange and the mounting flange are provided with corresponding fastening holes, the turbocharger return oil hole mounting flange is provided with an oil return channel, the end of the return oil pipeline is provided with an outward flange corresponding to the edge of the return oil channel, the mounting flange is provided with an oil return pipe mounting hole for the return oil pipeline to pass through, and the outer diameter of the flange is larger than the inner diameter of the return oil pipe mounting hole.

[0004] In the process of implementing the above scheme, it was found that the following problems existed in the prior art and have not been well solved: a flange structure is used to seal the oil return pipe, but the flange cannot be well sealed with the joint structure, and can only ensure that the flange fits the surface of the joint structure, but cannot ensure the sealing performance, resulting in poor sealing performance. The prior art uses structures such as gaskets or gaskets for sealing, but gaskets and gaskets cannot ensure tight fitting performance. Therefore, it is urgent to design a leak-proof sealing joint for the supercharger oil return pipe to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a leak-proof sealing joint for a supercharger oil return pipe to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A leak-proof sealing joint for a supercharger oil return pipe comprises an oil return pipe head and an oil return hole pipe seat, a docking groove is provided at one end of the inner wall of the oil return hole pipe seat, and the middle position of the inner wall of the docking groove is designed to be an oblique angle of 45°, a docking clamp ring is fixed to one end of the oil return pipe head and fits the inner wall of the docking groove, annular grooves are provided at the inner wall inclined surface of the docking groove and the outer wall inclined surface of the docking clamp ring, and annular sealing airbag rings are arranged in the two annular grooves, a first mounting flange seat is fixed to one end of the circumferential outer wall of the oil return pipe head, and a second mounting flange seat is fixed to one side of the circumferential outer wall of the oil return hole pipe seat, one side of the second mounting flange seat is fitted with one side of the first mounting flange seat, and a positioning assembly is arranged between the four corners of the second mounting flange seat and the four corners of the first mounting flange seat, and an inflation and deflation assembly is arranged between one end of the positioning assembly and one side of the annular sealing airbag ring.

[0008] Furthermore, the positioning assembly includes jacks opened inside the four corners of the second mounting flange seat, and threaded holes are opened between one end of the jack and the four corners of one side of the first mounting flange seat, and the inner walls of the threaded holes are threaded with positioning screws.

[0009] Furthermore, the inflation and deflation components include an active groove opened on one side of the bottom of the threaded hole, the inner wall of the second mounting flange seat and the outer wall of the oil return hole pipe seat, and an air storage chamber is opened inside the oil return hole pipe seat close to the side of the active groove, a through hole is opened between the middle position of one end of the air storage chamber and the bottom of one side of the active groove, a active disk is plugged into the interior of the socket, and a spring is fixed between one end of the active disk and one end of the socket, a push rod is fixed to the bottom of the active disk, which passes through the active groove and the through hole and is inserted into the air storage chamber, and a piston sleeve is fixed to one end of the push rod, and an air guide tube is fixed between the middle position of the other end of the air storage chamber and one side of the annular sealing airbag ring.

[0010] Furthermore, the diameter of the insertion hole is smaller than the diameter of the threaded hole, the piston sleeve is fitted on the circumferential inner wall of the air storage cavity, and the oil return hole pipe seat is provided with a channel for the air guide pipe to pass through.

[0011] Furthermore, the width of the push rod is the same as the width of the movable groove, and the distance between one end of the movable groove and one side of the push rod is equal to or greater than the distance between one side of the piston sleeve and one end of the air storage chamber.

[0012] Furthermore, one end of the circumferential outer wall of the oil return hole pipe seat is provided with limiting grooves which are equidistantly distributed in an annular shape, and one end of the oil return pipe head is fixed with a limiting block which is equidistantly distributed in an annular shape and inserted in the limiting groove.

[0013] Furthermore, one end of the oil return hole pipe seat is fitted between the circumferential outer wall of the docking clamp ring and the circumferential inner wall of the first mounting flange seat.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, the oil return pipe head, the oil return hole pipe seat, the docking clamp ring, the docking groove, the first mounting flange seat, the second mounting flange seat, the threaded hole and the positioning screw are matched, and the docking of the oil return pipe head and the oil return hole pipe seat is maintained by the first mounting flange seat, the second mounting flange seat, the threaded hole and the positioning screw, so that the docking clamp ring fits in the docking groove, and cooperates with the annular sealing airbag ring to maintain the initial sealing performance of the oil return pipe head and the oil return hole pipe seat, thereby achieving installation positioning performance and initial installation sealing performance;

[0016] 2. In the utility model, through the cooperation of the positioning component, the inflation and deflation component and the annular sealing airbag ring, when the oil return pipe head and the oil return hole pipe seat are docked and fixed by the positioning component, the positioning screw moves in the threaded hole, pushing the movable plate, the push rod and the piston sleeve to move, pushing the gas in the air storage chamber into the annular sealing airbag ring, thereby expanding the annular sealing airbag ring, ensuring the sealed docking of the entire joint structure, improving the sealing performance of the entire sealing joint, and ensuring tight fitting performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the overall structure of a leak-proof sealing joint for a supercharger oil return pipe.

[0018] Figure 2 The present invention is a front cross-sectional view of a leak-proof sealing joint of a supercharger oil return pipe.

[0019] Figure 3 The present invention is a cross-sectional view of an oil return pipe head of a leak-proof sealing joint of a supercharger oil return pipe.

[0020] Figure 4 The present invention is a schematic cross-sectional structure diagram of an oil return hole pipe seat of a leak-proof sealing joint of a supercharger oil return pipe.

[0021] Figure 5 The present invention is a stereoscopic view of an oil return hole pipe seat of a leak-proof sealing joint of a supercharger oil return pipe.

[0022] Figure 6 The present invention is a structural schematic diagram of a butt clamp ring and a limit block of a leak-proof sealing joint of a supercharger oil return pipe.

[0023] In the figure: 1. oil return pipe head; 2. first mounting flange seat; 3. second mounting flange seat; 4. oil return hole pipe seat; 5. positioning screw; 6. docking clamp ring; 7. movable plate; 8. jack; 9. spring; 10. movable groove; 11. air guide pipe; 12. piston sleeve; 13. air storage chamber; 14. push rod; 15. annular sealing airbag ring; 16. limiting block; 17. threaded hole; 18. annular groove; 19. docking clamp slot; 20. limiting groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 6In the embodiment of the utility model, a leak-proof sealing joint of a supercharger oil return pipe comprises an oil return pipe head 1 and an oil return hole pipe seat 4, a docking card groove 19 is provided at one end of the inner wall of the oil return hole pipe seat 4, and the middle position of the inner wall of the docking card groove 19 is designed to be an angle of 45°, a docking card ring 6 is fixed at one end of the oil return pipe head 1 to fit the inner wall of the docking card groove 19, an annular groove 18 is provided at the inner wall inclined surface of the docking card groove 19 and the outer wall inclined surface of the docking card ring 6, and an annular sealing airbag ring 15 is provided in the two annular grooves 18, a first mounting flange seat 2 is fixed at one end of the circumferential outer wall of the oil return pipe head 1, and a second mounting flange seat 3 is fixed at one side of the circumferential outer wall of the oil return hole pipe seat 4, and one side of the second mounting flange seat 3 is connected to one side of the first mounting flange seat 2 The sides are fitted together, and a positioning component is arranged between the four corners of the second mounting flange seat 3 and the four corners of the first mounting flange seat 2, and an inflation and deflation component is arranged between one end of the positioning component and one side of the annular sealing airbag ring 15, the positioning component includes a socket 8 opened inside the four corners of the second mounting flange seat 3, and a threaded hole 17 is opened between one end of the socket 8 and the four corners of one side of the first mounting flange seat 2, and the inner wall of the threaded hole 17 is screwed with a positioning screw 5, and the inflation and deflation components include an active groove 10 opened on one side of the bottom of the threaded hole 17, the inner wall of the second mounting flange seat 3 and the outer wall of the return oil hole pipe seat 4, and an air storage cavity 13 is opened inside the return oil hole pipe seat 4 near the side of the active groove 10, and the middle position of one end of the air storage cavity 13 is connected to one side of the active groove 10 A through hole is provided between the bottom, a movable disk 7 is inserted into the inside of the socket 8, and a spring 9 is fixed between one end of the movable disk 7 and one end of the socket 8, a push rod 14 is fixed at the bottom of the movable disk 7, which passes through the movable groove 10 and the through hole and is inserted into the air storage chamber 13, and a piston sleeve 12 is fixed at one end of the push rod 14, and an air guide pipe 11 is fixed between the middle position of the other end of the air storage chamber 13 and one side of the annular sealing airbag ring 15, and one end of the circumferential outer wall of the return oil hole pipe seat 4 is provided with equidistantly distributed limiting grooves 20, and one end of the return oil pipe head 1 is fixed with equidistantly distributed limiting blocks 16 in the form of a ring and inserted into the limiting grooves 20, and one end of the return oil hole pipe seat 4 is fitted between the circumferential outer wall of the docking clamp ring 6 and the circumferential inner wall of the first mounting flange seat 2, so as to facilitate The first mounting flange seat 2, the second mounting flange seat 3, the threaded hole 17 and the positioning screw 5 are used to maintain the docking of the oil return pipe head 1 and the oil return hole pipe seat 4, so that the docking clamp ring 6 fits in the docking clamp groove 19, and cooperates with the annular sealing airbag ring 15 to maintain the initial sealing performance of the oil return pipe head 1 and the oil return hole pipe seat 4, to achieve installation positioning performance and initial installation sealing performance, when the oil return pipe head 1 and the oil return hole pipe seat 4 are docked and fixed by the positioning assembly, the positioning screw 5 is moved in the threaded hole 17, pushing the movable disk 7, the push rod 14 and the piston sleeve 12 to move, pushing the gas in the air storage chamber 13 into the annular sealing airbag ring 15, thereby expanding the annular sealing airbag ring 15 to ensure the sealed docking of the entire joint structure.

[0026] Specifically, the diameter of the socket 8 is smaller than the diameter of the threaded hole 17, the piston sleeve 12 fits on the circumferential inner wall of the air storage chamber 13, and a channel for the air guide pipe 11 to pass through is opened on the oil return hole pipe seat 4. The width of the push rod 14 is the same as the width of the movable groove 10, so that the push rod 14 can run smoothly in the movable groove 10, and the distance between one end of the movable groove 10 and one side of the push rod 14 is equal to or greater than the distance between one side of the piston sleeve 12 and one end of the air storage chamber 13.

[0027] The working principle of the utility model is: when in use, the user utilizes the first mounting flange seat 2, the second mounting flange seat 3, the threaded hole 17 and the positioning screw 5 to maintain the docking of the oil return pipe head 1 and the oil return hole pipe seat 4, so that the docking clamp ring 6 fits in the docking clamp groove 19, and cooperates with the annular sealing airbag ring 15 to maintain the initial sealing performance of the oil return pipe head 1 and the oil return hole pipe seat 4, to achieve installation positioning performance and initial installation sealing performance, when the oil return pipe head 1 and the oil return hole pipe seat 4 are docked and fixed by the positioning component, the positioning screw 5 is moved in the threaded hole 17, pushing the movable disk 7, the push rod 14 and the piston sleeve 12 to move, pushing the gas in the air storage chamber 13 into the annular sealing airbag ring 15, thereby expanding the annular sealing airbag ring 15, ensuring the sealed docking of the entire joint structure, and improving the sealing performance of the entire sealing joint.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A leakproof sealing joint for a supercharger oil return pipe, comprising an oil return pipe head (1) and an oil return hole pipe seat (4), characterized in that: A docking slot (19) is provided at one end of the inner wall of the oil return hole pipe seat (4), and the middle position of the inner wall of the docking slot (19) is designed to be inclined at 45 degrees. A docking ring (6) is fixed to one end of the oil return pipe head (1) and is attached to the inner wall of the docking slot (19). An annular groove (18) is provided at the inner wall inclined surface of the docking slot (19) and the outer wall inclined surface of the docking ring (6), and an annular sealing airbag ring (15) is provided in the two annular grooves (18). A first mounting flange seat (2) is fixed to one end of the circumferential outer wall of the head (1), and a second mounting flange seat (3) is fixed to one side of the circumferential outer wall of the oil return hole pipe seat (4), one side of the second mounting flange seat (3) is in contact with one side of the first mounting flange seat (2), and positioning components are arranged between the four corners of the second mounting flange seat (3) and the four corners of the first mounting flange seat (2), and an inflation and deflation component is arranged between one end of the positioning component and one side of the annular sealing airbag ring (15).

2. The leakproof sealing joint of the supercharger oil return pipe according to claim 1, characterized in that: The positioning assembly comprises a socket (8) provided inside the four corners of the second mounting flange seat (3), and threaded holes (17) are provided between one end of the socket (8) and the four corners of one side of the first mounting flange seat (2), and the inner walls of the threaded holes (17) are threadedly connected with positioning screws (5).

3. The leakproof sealing joint of the supercharger oil return pipe according to claim 2, characterized in that: The inflation and deflation components include an active groove (10) provided on one side of the bottom of the threaded hole (17), the inner wall of the second mounting flange seat (3) and the outer wall of the oil return hole pipe seat (4), and an air storage chamber (13) is provided inside the oil return hole pipe seat (4) near the active groove (10), a through hole is provided between the middle position of one end of the air storage chamber (13) and the bottom of one side of the active groove (10), a movable disk (7) is inserted into the inside of the plug hole (8), and a spring (9) is fixed between one end of the movable disk (7) and one end of the plug hole (8), a push rod (14) is fixed at the bottom of the movable disk (7) and passes through the active groove (10) and the through hole and is inserted into the air storage chamber (13), and a piston sleeve (12) is fixed at one end of the push rod (14), and an air guide tube (11) is fixed between the middle position of the other end of the air storage chamber (13) and one side of the annular sealing airbag ring (15).

4. The leakproof sealing joint of the supercharger oil return pipe according to claim 3, characterized in that: The diameter of the insertion hole (8) is smaller than the diameter of the threaded hole (17); the piston sleeve (12) fits on the circumferential inner wall of the air storage chamber (13); and a passage for the air guide pipe (11) to pass through is provided on the oil return hole pipe seat (4).

5. The leakproof sealing joint of the supercharger oil return pipe according to claim 4, characterized in that: The width of the push rod (14) is the same as the width of the movable groove (10), and the distance between one end of the movable groove (10) and one side of the push rod (14) is equal to or greater than the distance between one side of the piston sleeve (12) and one end of the air storage chamber (13).

6. The leakproof sealing joint of the supercharger oil return pipe according to claim 1, characterized in that: One end of the circumferential outer wall of the oil return hole pipe seat (4) is provided with limiting grooves (20) which are distributed in an annular shape at equal distances, and one end of the oil return pipe head (1) is fixed with a limiting block (16) which is distributed in an annular shape at equal distances and inserted into the limiting groove (20).

7. The leakproof sealing joint of the supercharger oil return pipe according to claim 1, characterized in that: One end of the oil return hole pipe seat (4) is fitted between the circumferential outer wall of the docking clamp ring (6) and the circumferential inner wall of the first mounting flange seat (2).

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