Anti-loosening and anti-warping mounting structure for external sealing ring of throttle valve

Abstract

The utility model discloses an anti-loosening and anti-warping mounting structure for an external sealing ring of a throttle valve, which comprises a shell and the sealing ring, and an annular mounting groove for mounting the sealing ring is arranged on the top end surface of the shell; a plurality of sealing ring fixing columns which are uniformly distributed and used for preventing the sealing ring from loosening are correspondingly arranged on the peripheral sides of the inner wall and the outer wall of the sealing ring respectively; a plurality of sealing ring supporting columns for preventing the sealing ring from warping are arranged on the outer wall of the sealing ring between two adjacent sealing ring fixing columns; the sealing ring fixing columns which are in interference fit with the mounting grooves are arranged on the peripheral side of the sealing ring, so that the fastening degree of mounting of the sealing ring can be guaranteed, the sealing ring is prevented from being separated from the mounting grooves in the transportation process, the supporting performance of the sealing ring is improved by arranging the sealing ring supporting columns, the sealing ring is prevented from being too soft and deformed, and the service life of the sealing ring is prolonged. The problem that the sealing ring is prone to loosening and warping is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, and particularly relates to an anti-loosening and anti-warping installation structure for an external throttle valve sealing ring. Background Art

[0002] With the increasing national requirements for automobile exhaust emissions, the automobile industry has become more and more strict with the exhaust gas treatment system, and the requirements for the engine EGR system have also become higher and higher. The traditional EGR system can no longer meet the requirements.

[0003] For a supercharged cold diesel engine, under certain working conditions, the intake pressure after intercooling may be greater than the exhaust pressure in front of the turbine, resulting in the problem that the exhaust gas is difficult to flow into the intake pipe, thus causing the EGR system to fail to function. At this time, an electronic throttle valve needs to be installed in the intake pipe of the diesel engine for throttling and pressure reduction.

[0004] However, due to different assembly methods of each main engine manufacturer, some throttle valves require an external sealing ring to meet the assembly requirements. However, because the material of the sealing ring is relatively soft, the sealing ring is extremely prone to warping and deformation problems. At the same time, the sealing ring is also prone to loosening during the assembly and transportation processes, resulting in a large cost loss during transportation. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide an anti-loosening and anti-warping installation structure for an external throttle valve sealing ring, which can solve the problems of easy loosening and warping of the sealing ring.

[0006] To solve the above technical problems, the technical solutions adopted by the utility model are as follows.

[0007] An anti-loosening and anti-warping installation structure for an external throttle valve sealing ring includes a housing and a sealing ring. An annular installation groove for installing the sealing ring is provided on the top surface of the housing; a number of sealing ring fixing columns are uniformly distributed on the circumferences of the inner wall and the outer wall of the sealing ring respectively to prevent the sealing ring from loosening; a number of sealing ring support columns for preventing the sealing ring from warping are provided on the outer wall of the sealing ring between two adjacent sealing ring fixing columns.

[0008] In the above anti-loosening and anti-warping installation structure for an external throttle valve sealing ring, an interference fit is provided between the sealing ring fixing column and the installation groove.

[0009] In the above anti-loosening and anti-warping installation structure for an external throttle valve sealing ring, a clearance fit is provided between the sealing ring support column and the installation groove.

[0010] Due to the adoption of the above technical solutions, the technical progress achieved by the utility model is as follows.

[0011] The utility model provides an installation structure for preventing loosening and warping of an external throttle valve sealing ring. By arranging sealing ring fixing columns on the circumferential side of the sealing ring and having an interference fit with the installation groove, the fastening degree of the sealing ring installation can be ensured, preventing the sealing ring from slipping out of the installation groove during transportation. Additionally, by arranging sealing ring support columns, the support property of the sealing ring is increased, preventing the sealing ring from deforming due to excessive softness, thus solving the problems of easy loosening and warping of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the internal structure of the utility model;

[0013] Figure 2 is an exploded view of the utility model.

[0014] Wherein: 1. housing, 2. sealing ring, 3. installation groove, 4. sealing ring fixing column, 5. sealing ring support column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following will further describe the utility model in detail in conjunction with the drawings and specific embodiments.

[0016] An installation structure for preventing loosening and warping of an external throttle valve sealing ring, as Figures 1 to 2 shown, includes a housing 1 and a sealing ring 2. An annular installation groove 3 for installing the sealing ring 2 is provided on the top end surface of the housing 1.

[0017] A plurality of sealing ring fixing columns 4 are respectively arranged on the circumferential sides of the inner wall and the outer wall of the sealing ring 2. The sealing ring fixing columns 4 are evenly distributed on the circumferential side of the sealing ring 2. For example, the sealing ring fixing columns 4 can be respectively arranged at the positions of 0°, 90°, 180°, and 270° on the circumferential side of the sealing ring.

[0018] There is an interference fit between the sealing ring fixing column 4 and the installation groove 3, which can prevent the sealing ring 2 from loosening from the installation groove 3 during movement, resulting in poor sealing performance of the housing 1.

[0019] A plurality of sealing ring support columns 5 are also arranged on the circumferential side of the sealing ring 2. The sealing ring support columns 5 are evenly distributed on the side wall of the sealing ring 2 between two adjacent sealing ring fixing columns 4, and there is a clearance fit between the sealing ring support column 5 and the installation groove 3. By arranging the sealing ring support columns 5, the problem of warping deformation of the sealing ring 2 caused by the excessive softness of the sealing ring material can be prevented.

[0020] The utility model provides an installation structure for preventing loosening and warping of an external throttle valve sealing ring. By arranging sealing ring fixing columns on the circumferential side of the sealing ring and having an interference fit with the installation groove, the fastening degree of the sealing ring installation can be ensured, preventing the sealing ring from slipping out of the installation groove during transportation. Additionally, by arranging sealing ring support columns, the support property of the sealing ring is increased, preventing the sealing ring from deforming due to excessive softness, thus solving the problems of easy loosening and warping of the sealing ring.

Claims

1. A throttle valve external sealing ring anti-loosening and anti-warping installation structure, comprising a housing (1) and a sealing ring (2), wherein the top surface of the housing (1) is provided with an annular installation groove (3) for installing the sealing ring (2); the characteristics are: A plurality of sealing ring fixing columns (4) are evenly distributed and arranged on the circumferential sides of the inner wall and the outer wall of the sealing ring (2) to prevent the sealing ring from loosening; and a plurality of sealing ring supporting columns (5) are arranged on the outer wall of the sealing ring (2) between two adjacent sealing ring fixing columns (4) to prevent the sealing ring (2) from warping.

2. The anti-loosening and anti-warping installation structure for an external throttle seal ring according to claim 1, characterized in that: There is an interference fit between the sealing ring fixing column (4) and the mounting groove (3).

3. The anti-loosening and anti-warping installation structure for an external throttle seal ring according to claim 1, characterized in that: There is a clearance fit between the sealing ring support column (5) and the installation groove (3).

Images