Small-oil-port composite sealing washer

Abstract

The utility model discloses a small oil port composite sealing washer which comprises a cylindrical metal sealing outer ring and a cylindrical rubber sealing inner ring, an annular first protrusion is arranged at the top of the sealing outer ring, a round first groove is formed in the top of the sealing outer ring, an annular second protrusion is arranged at the top of the sealing outer ring, and a round second groove is formed in the top of the sealing outer ring. The bottom of the sealing outer ring is provided with a circular second groove, a first through hole is formed between the first groove and the second groove, the top of the sealing inner ring is provided with an annular third protrusion, the bottom of the sealing inner ring is provided with an annular fourth protrusion, and the sealing inner ring is internally provided with a second through hole. The first groove is matched with the third protrusion, and the second groove is matched with the fourth protrusion. The rubber sealing inner ring is of an integrated structure and is tightly attached to the metal sealing outer ring, so that the sealing inner ring and the sealing outer ring are combined into the integrated structure, installation is convenient, and the problems that a sealing washer is lost and the like are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite sealing gaskets, in particular to a composite sealing gasket for a small oil port. Background Art

[0002] The traditional oil port sealing gasket is a ring structure, which is directly installed at the interface position, but it is easy to fall off during installation and removal, and the sealing gasket needs to be installed at both ends, which is not only complicated to install, but also affects the installation efficiency. The utility model designs a small oil port composite sealing gasket, which adopts an integrated structure, which not only solves the problem of sealing gasket installation efficiency, but also solves the problem of sealing gasket easy to lose. Utility Model Content

[0003] The purpose of the utility model is to solve the problems in the prior art and to provide a composite sealing gasket for a small oil port, which can solve the problems of sealing gasket loss and low installation efficiency.

[0004] To achieve the above-mentioned purpose, the utility model proposes a small oil port composite sealing gasket, comprising a cylindrical metal sealing outer ring and a cylindrical rubber sealing inner ring, the sealing outer ring is sleeved on the outside of the sealing inner ring 2, the inner side wall of the sealing outer ring and the outer side wall of the sealing inner ring are tightly fitted, the top surface of the sealing outer ring and the top surface of the sealing inner ring are on the same horizontal plane, the bottom surface of the sealing outer ring and the bottom surface of the sealing inner ring are on the same horizontal plane, an annular first protrusion is arranged on the top of the sealing outer ring, a circular first groove is arranged on the top of the sealing outer ring, the top surface of the first protrusion and the top surface of the first groove are on the same horizontal plane, An annular second protrusion is arranged on the top of the sealing outer ring, and a circular second groove is arranged on the bottom of the sealing outer ring. The top surface of the second protrusion and the top surface of the second groove are in the same horizontal plane. A first through hole is arranged between the first groove and the second groove. The first through hole is vertical and connects the first groove and the second groove. An annular third protrusion is arranged on the top of the sealing inner ring, and an annular fourth protrusion is arranged on the bottom of the sealing inner ring. A second through hole is arranged inside the sealing inner ring, and the second through hole is perpendicular to the upper and lower bottom surfaces of the sealing inner ring. The first groove and the third protrusion are matched, and the second groove and the fourth protrusion are matched.

[0005] Preferably, an annular fifth protrusion is provided on the upper surface of the third protrusion.

[0006] Preferably, the diameter of the first protrusion is smaller than that of the second protrusion.

[0007] Preferably, the diameter of the first groove is smaller than the diameter of the second groove.

[0008] Beneficial effects of the utility model:

[0009] The rubber sealing inner ring adopts an integrated structure, which not only fits tightly with the metal sealing outer ring, making the sealing inner ring and the sealing outer ring combined into an integrated structure, but also is easy to install and solves the problem of sealing gasket loss.

[0010] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural diagram of a small oil port composite sealing gasket of the utility model;

[0012] Figure 2 This is a structural diagram of the sealing outer ring of the utility model.

[0013] Numbers in the figure: 1, sealing outer ring; 2, sealing inner ring; 101, first groove; 102, second groove; 103, first through hole; 104, first protrusion; 105, second protrusion; 201, third protrusion; 202, fourth protrusion; 203, second through hole; 204, fifth protrusion. DETAILED DESCRIPTION

[0014] Embodiment 1:

[0015] The utility model comprises a cylindrical metal sealing outer ring 1 and a cylindrical rubber sealing inner ring 2, wherein the sealing outer ring 1 is sleeved on the outside of the sealing inner ring 2, the inner side wall of the sealing outer ring 1 and the outer side wall of the sealing inner ring 2 are tightly fitted, the top surface of the sealing outer ring 1 and the top surface of the sealing inner ring 2 are on the same horizontal plane, the bottom surface of the sealing outer ring 1 and the bottom surface of the sealing inner ring 2 are on the same horizontal plane, an annular first protrusion 104 is arranged on the top of the sealing outer ring 1, a circular first groove 101 is arranged on the top of the sealing outer ring 1, the top surface of the first protrusion 104 and the top surface of the first groove 101 are on the same horizontal plane, an annular second protrusion 105 is arranged on the top of the sealing outer ring 1, a circular second groove 102 is arranged on the bottom of the sealing outer ring 1, the top surface of the second protrusion 105 and The top surface of the second groove 102 is in the same horizontal plane, a first through hole 103 is arranged between the first groove 101 and the second groove 102, the first through hole 103 is vertical and connects the first groove 101 and the second groove 102, an annular third protrusion 201 is arranged on the top of the sealing inner ring 2, an annular fourth protrusion 202 is arranged on the bottom of the sealing inner ring 2, a second through hole 203 is arranged inside the sealing inner ring 2, the second through hole 203 is perpendicular to the upper and lower bottom surfaces of the sealing inner ring 2, the first groove 101 and the third protrusion 201 are matched, the second groove 102 and the fourth protrusion 202 are matched, the sealing inner ring 2 is installed inside the sealing outer ring 1, and the shape of the sealing inner ring 2 is matched with the sealing outer ring 1, so that the contact is tight and the sealing effect is improved.

[0016] Advantageously, an annular fifth protrusion 204 is provided on the upper surface of the third protrusion 201, so that when the sealing inner ring 2 is compressed, the sealing inner ring 2 is in closer contact with the pipe opening, thereby improving the sealing performance.

[0017] Advantageously, the diameter of the first protrusion 104 is smaller than that of the second protrusion 105, and the diameter of the first groove 101 is smaller than that of the second groove 102, and a thick-end-thin-end design is adopted to facilitate the connection of a thick oil pipe and a thin oil pipe.

[0018] The use of this utility model:

[0019] When in use, first wipe the sealing inner ring 2 and the sealing outer ring 1 clean, install the sealing inner ring 2 inside the sealing inner ring 1, match the first groove 101 with the third protrusion 201, match the second groove 102 with the fourth protrusion 202, and then install the entire small oil port composite sealing gasket at the interface between the oil pipe and the oil pipe. The oil pipe will compress the upper and lower ends of the sealing inner ring 2, and the oil pipe and the sealing inner ring 2 fit tightly, thereby playing a sealing role.

[0020] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A small oil port composite sealing gasket, characterized in that: The invention comprises a cylindrical metal sealing outer ring (1) and a cylindrical rubber sealing inner ring (2), wherein the sealing outer ring (1) is sleeved on the outside of the sealing inner ring (2), the inner side wall of the sealing outer ring (1) and the outer side wall of the sealing inner ring (2) are tightly fitted, the top surface of the sealing outer ring (1) and the top surface of the sealing inner ring (2) are on the same horizontal plane, the bottom surface of the sealing outer ring (1) and the bottom surface of the sealing inner ring (2) are on the same horizontal plane, the top of the sealing outer ring (1) is provided with an annular first protrusion (104), the top of the sealing outer ring (1) is provided with a circular first groove (101), the top surface of the first protrusion (104) and the top surface of the first groove (101) are on the same horizontal plane, the top of the sealing outer ring (1) is provided with an annular second protrusion (105), and the bottom of the sealing outer ring (1) is provided with a circular A second groove (102), a top surface of the second protrusion (105) and a top surface of the second groove (102) are in the same horizontal plane, a first through hole (103) is arranged between the first groove (101) and the second groove (102), the first through hole (103) is vertical and connects the first groove (101) and the second groove (102), an annular third protrusion (201) is arranged on the top of the sealing inner ring (2), an annular fourth protrusion (202) is arranged on the bottom of the sealing inner ring (2), a second through hole (203) is arranged inside the sealing inner ring (2), the second through hole (203) is perpendicular to the upper and lower bottom surfaces of the sealing inner ring (2), the first groove (101) and the third protrusion (201) are matched, and the second groove (102) and the fourth protrusion (202) are matched.

2. A small oil port composite sealing gasket as claimed in claim 1, characterized in that: An annular fifth protrusion (204) is provided on the upper surface of the third protrusion (201).

3. A small oil port composite sealing gasket as claimed in claim 1, characterized in that: The first protrusion (104) has a smaller diameter than the second protrusion (105).

4. A small oil port composite sealing gasket as claimed in claim 1, characterized in that: The diameter of the first groove (101) is smaller than the diameter of the second groove (102).

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