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CN-224229277-U - Single-shaft driving semiconductor pressure control valve suspension arm sealing mechanism

CN224229277UCN 224229277 UCN224229277 UCN 224229277UCN-224229277-U

Abstract

The utility model discloses a single-shaft driving semiconductor pressure control valve hanging arm sealing mechanism, which relates to the technical field of pressure control valves and comprises a valve body, wherein a valve hole is formed in the middle of the valve body, an axially extending mounting hole is formed in one side of the interior of the valve body, a valve plate driving shaft capable of axially moving is slidably matched in the mounting hole, the tail end of the valve plate driving shaft is vertically and fixedly connected with a hanging arm, one end of the hanging arm, which is far away from the valve plate driving shaft, is fixedly connected with a disc-shaped sealing valve plate, a flange surrounding the valve hole is arranged on one side of the valve body, and a butt joint sealing ring is arranged on the edge of one side, which is far away from the flange, of the valve body. According to the sealing mechanism for the suspension arm of the semiconductor pressure control valve driven by a single shaft, the traditional double-shaft driving is changed into single-shaft driving, and the design that the suspension arm is rigidly connected with the geometric center of a valve plate is adopted, so that the motion deviation caused by the asynchronous double-shaft processing or assembly is fundamentally eliminated.

Inventors

  • QIU YONG

Assignees

  • 上海法安仕半导体科技有限公司

Dates

Publication Date
20260512
Application Date
20250613

Claims (7)

  1. 1. The sealing mechanism comprises a valve body (1), wherein a valve hole (2) is formed in the middle of the valve body (1); The valve is characterized in that one side of the interior of the valve body (1) is provided with an axially extending mounting hole (5), a valve plate driving shaft (6) capable of axially moving is slidably matched in the mounting hole (5), the tail end of the valve plate driving shaft (6) is vertically and fixedly connected with a hanging arm (7), and one end, far away from the valve plate driving shaft (6), of the hanging arm (7) is fixedly connected with a disc-shaped sealing valve plate (8).
  2. 2. The sealing mechanism for the suspension arm of the single-shaft driven semiconductor pressure control valve according to claim 1, wherein one side of the valve body (1) is provided with a flange (3) surrounding the valve hole (2), and the edge of one side of the valve body (1) far away from the flange (3) is provided with a butt sealing ring (4).
  3. 3. The sealing mechanism of the suspension arm of the single-shaft driven semiconductor pressure control valve according to claim 2, wherein the diameter of the sealing valve plate (8) is larger than the aperture of the valve hole (2), the connecting point of the suspension arm (7) and the sealing valve plate (8) is positioned at the geometric center of the valve plate, and the working surface of the sealing valve plate (8) is perpendicular to the axis of the valve hole (2).
  4. 4. The single-axis driving semiconductor pressure control valve hanging arm sealing mechanism according to claim 3, wherein the outer surface of the valve plate driving shaft (6) is sleeved with an axially telescopic vacuum bellows (9), the fixed end of the vacuum bellows (9) is fixedly connected to the outer wall surface of the valve body (1), and the free end of the vacuum bellows (9) is fixedly connected to an end flange of the valve plate driving shaft (6).
  5. 5. The sealing mechanism for the suspension arm of the single-shaft driven semiconductor pressure control valve according to claim 4, wherein an annular mounting groove is formed in the inlet end of the valve hole (2), a shutoff sealing ring (10) is embedded in the mounting groove, the section of the shutoff sealing ring (10) is of a V-shaped structure, and a wedge-shaped sealing groove (11) is formed in the edge of the sealing valve plate (8) corresponding to the position of the shutoff sealing ring (10).
  6. 6. The sealing mechanism for the suspension arm of the single-axis driving semiconductor pressure control valve according to claim 5, wherein the axial expansion stroke of the vacuum bellows (9) is equal to the sliding stroke of the valve plate driving shaft (6), and the vacuum bellows (9) still has an elastic allowance in a maximum compression state.
  7. 7. The sealing mechanism for the suspension arm of the single-shaft driven semiconductor pressure control valve according to claim 6, wherein the length direction of the suspension arm (7) is perpendicular to the axis of the valve plate driving shaft (6), and the tail end of the suspension arm (7) is fixedly connected with the sealing valve plate (8) through a bolt.

Description

Single-shaft driving semiconductor pressure control valve suspension arm sealing mechanism Technical Field The utility model relates to the technical field of pressure control valves, in particular to a sealing mechanism for a suspension arm of a single-shaft driving semiconductor pressure control valve. Background A pressure control valve is a valve for controlling the pressure in a liquid or gas system. The valve opening is automatically regulated to stabilize the pressure in the system and prevent the pressure from being too high or too low, so that the safe operation of equipment and pipelines is ensured. In order to achieve the above-mentioned function, chinese patent publication No. CN204828825U discloses a pressure regulating type pressure control valve, which comprises a first housing, one end of the first housing is provided with a pipeline fluid inlet, a pipeline fluid outlet is provided on a side wall, a thrust spring assembly is sleeved in the first housing, the other end of the first housing is connected with a second housing, a thrust spring pushing device which is abutted against the thrust spring assembly is arranged in the first housing, one end of the first housing is sleeved with a first ball seat, one end of the first ball seat is abutted against the interior of the first housing, the other end of the first ball seat is abutted against a sealing ball, the other side of the sealing ball is abutted against a second ball seat, an annular fluid channel is formed in an axially spaced annular space between the first ball seat and the second ball seat, the annular fluid channel is communicated with the pipeline fluid outlet, and the other end of the second ball seat is abutted against one end of the thrust spring assembly. The pressure regulating type pressure control valve can effectively avoid the problems of pressure holding, equipment damage and fluid leakage caused by small-range fluctuation of flow, and is stable in pressure control and flattening in the working process, simple in structure and convenient to operate. In the prior art, although the defects can be overcome, other problems exist in the operation process of the sealing ring, namely the sealing ring is stressed unevenly due to the fact that the two driving shafts synchronously lift and control the valve plate, the ball seat and the sealing ball are adopted to realize pressure adjustment, and in the actual use process, the sealing ring is not stressed unevenly due to the fact that the double shafts are processed or assembled asynchronously, and the sealing ring is not airtight enough in closing. Disclosure of utility model The utility model aims to provide a sealing mechanism for a suspension arm of a single-shaft driving semiconductor pressure control valve, which aims to solve the problems that in the prior art, the non-synchronization of double-shaft processing or assembly easily causes uneven stress of a sealing ring and insufficient air tightness during closing. In order to achieve the aim, the utility model provides the technical scheme that the sealing mechanism of the suspension arm of the semiconductor pressure control valve driven by a single shaft comprises a valve body, wherein a valve hole is formed in the middle of the valve body; The valve is characterized in that one side of the interior of the valve body is provided with an axially extending mounting hole, a valve plate driving shaft capable of axially moving is slidably matched in the mounting hole, the tail end of the valve plate driving shaft is vertically and fixedly connected with a suspension arm, and one end, far away from the valve plate driving shaft, of the suspension arm is fixedly connected with a disc-shaped sealing valve plate. Preferably, one side of the valve body is provided with a flange surrounding the valve hole, and the edge of one side of the valve body far away from the flange is provided with a butt-joint sealing ring. Preferably, the diameter of the sealing valve plate is larger than the aperture of the valve hole, the connecting point of the suspension arm and the sealing valve plate is positioned in the geometric center of the valve plate, and the working surface of the sealing valve plate is perpendicular to the axis of the valve hole. Preferably, the outer surface of the valve plate driving shaft is sleeved with an axially telescopic vacuum bellows, the fixed end of the vacuum bellows is fixedly connected with the outer wall surface of the valve body, and the free end of the vacuum bellows is fixedly connected with an end flange of the valve plate driving shaft. Preferably, an annular mounting groove is formed in the inlet end of the valve hole, a shutoff sealing ring is embedded in the mounting groove, the section of the shutoff sealing ring is of a V-shaped structure, and a wedge-shaped sealing groove is formed in the edge of the sealing valve plate, corresponding to the position of the shutoff sealing ring. Preferably, the axial