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CN-224223211-U - Valve body and valve seat dismounting device

CN224223211UCN 224223211 UCN224223211 UCN 224223211UCN-224223211-U

Abstract

The application discloses a valve body and valve seat dismounting device, which comprises a supporting plate, a plurality of balls, two top plates, a supporting plate, a plurality of ejector rods and a plurality of ball bearings, wherein the supporting plate is buckled on a valve body, the first sleeve is arranged in the center of the supporting plate, the second sleeve is in threaded connection with the first sleeve, the balls are arranged at the bottom of the second sleeve at intervals, the two top plates are symmetrically arranged at two ends of the bottom of the second sleeve, one ends of the two top plates are fixedly connected with adjacent balls, the other ends of the two top plates are abutted with the inner wall of the valve seat, and one ends of the ejector rods are close to or far away from the bottom of the second sleeve along the axial length direction of the middle part of the second sleeve and abutted with part of the peripheral surfaces of the balls. In the application, the ejector rod is inserted into the second sleeve, and one end of the ejector rod axially moves to abut against the ball to push the ball to generate radial displacement. The displacement of the ball drives the top plate to expand outwards, and uniform radial force is applied to the inner wall of the valve seat. After roof and disk seat inner wall butt back, rotate first sleeve, make the together vertical displacement of second sleeve and ejector pin, avoid its deformation simultaneously when accomplishing the dismantlement of valve body and disk seat, guarantee structural integrity.

Inventors

  • LEI YANGYONG
  • WANG CAIXIA
  • FU YANHE
  • ZHU LEILEI
  • REN JINTAO

Assignees

  • 西安泵阀总厂股份有限公司

Dates

Publication Date
20260512
Application Date
20250422

Claims (6)

  1. 1. The valve body and valve seat dismounting device is characterized by comprising a supporting plate (10), a first sleeve (11), a second sleeve (12), a push rod (13), a plurality of balls (14) and two top plates (15); The supporting plate (10) is buckled at the end part of the valve body, The first sleeve (11) is rotatably arranged in the center of the supporting plate (10); The outer wall of the second sleeve (12) is in threaded connection with the inner wall of the first sleeve (11); The balls (14) are arranged at intervals at the bottom of the second sleeve (12), and the peripheral surface of the balls is in sliding contact with the inner wall of the bottom of the second sleeve (12); The two top plates (15) are symmetrically arranged at two ends of the bottom of the second sleeve (12), one end of each top plate (15) is fixedly connected with the adjacent ball (14), and the other end of each top plate is abutted against the inner wall of the valve seat; The ejector rod (13) is arranged in the second sleeve (12), and one end of the ejector rod (13) is close to or far away from the bottom of the second sleeve (12) along the axial length direction of the middle part of the second sleeve (12) and abuts against part of the peripheral surface of the ball (14).
  2. 2. Valve body and valve seat dismounting device according to claim 1, characterized in that the inner wall of the first sleeve (11) and the outer wall of the second sleeve (12) form a first rotational path, the inner wall of the middle part of the second sleeve (12) and the outer wall of the carrier rod (13) form a second rotational path, which is opposite to the first rotational path.
  3. 3. The valve body and valve seat dismounting device according to claim 2, wherein the second sleeve (12) is of an inverted T-shaped structure as a whole, two ends of the bottom of the second sleeve (12) are fixedly provided with limiting sleeves (16), two ends of the limiting sleeves (16) far away from the second sleeve (12) are both provided with limiting grooves (161) in a concave manner from the axes of the limiting sleeves, the groove length directions of the limiting grooves (161) are perpendicular to the bottom axes of the second sleeve (12), and the groove walls of the limiting grooves (161) are in sliding contact with the corresponding top plate (15).
  4. 4. A valve body and valve seat dismounting device as claimed in claim 3, wherein the top plate (15) includes a connecting portion (151) and a clamping portion (152); The peripheral surface of the connecting part (151) is in sliding connection with the groove wall of the limiting groove (161), one end of the connecting part (151) is fixedly connected with the balls (14) at two ends of the bottom of the second sleeve (12), and the other end of the connecting part is fixedly connected with one end of the clamping part (152); the other end of the clamping part (152) is abutted with the clamping part of the valve seat, and the circumferential surface contour of the clamping part is matched with the cross section contour of the clamping part of the valve seat.
  5. 5. Valve body and valve seat dismounting device according to claim 1, characterized in that a flange (101) extends from the plate edge of the support plate (10) towards the bottom of the second sleeve (12), the inner wall of the flange (101) being in abutment with the peripheral surface of the valve body.
  6. 6. Valve body and valve seat dismounting device according to claim 1, characterized in that the end of the ejector rod (13) close to the ball (14) is in a conical structure, and the end of the ejector rod (13) far away from the ball (14) is fixedly provided with a handle (17).

Description

Valve body and valve seat dismounting device Technical Field The application relates to the technical field of valve body disassembly, in particular to a valve body and valve seat disassembly device. Background The valve body is a control component in the pipeline fluid conveying system and is used for changing the section of the passage and the flow direction of the medium. The valve seat of the valve body is often corroded or deformed at high temperature and the like due to long service time, and the valve seat and the valve body are stuck, so that the maintenance is troublesome, and the valve seat must be completely destroyed to be matched again when the maintenance is serious. In the prior art, no proper disassembly tool exists in the production process, a worker usually uses a temporarily found object to perform violent knocking from the tail of the valve seat, and the knocking causes uneven stress of the valve seat and easily damages the valve seat. Therefore, there is a need for a valve body and valve seat dismounting device that solves the above-mentioned problems. Disclosure of utility model The embodiment of the application aims to protect the valve body and the valve seat and simultaneously facilitate the disassembly operation of the valve body and the valve seat by providing the valve body and valve seat disassembly device. In order to achieve the above purpose, the present application provides the following technical solutions: A valve body and valve seat dismounting device comprises a supporting plate, a first sleeve, a second sleeve, a push rod, a plurality of balls and two top plates; The supporting plate is buckled at the end part of the valve body, The first sleeve is rotatably arranged in the center of the supporting plate; the outer wall of the second sleeve is in threaded connection with the inner wall of the first sleeve; The plurality of balls are arranged at the bottom of the second sleeve at intervals, and the peripheral surface of the balls is in sliding contact with the inner wall of the bottom of the second sleeve; The two top plates are symmetrically arranged at two ends of the bottom of the second sleeve, one end of each of the two top plates is fixedly connected with the adjacent ball, and the other end of each of the two top plates is abutted against the inner wall of the valve seat; The ejector rod is arranged in the second sleeve, and one end of the ejector rod is close to or far away from the bottom of the second sleeve along the axial length direction of the middle part of the second sleeve and abuts against part of the peripheral surface of the ball. Further, the inner wall of the first sleeve and the outer wall of the second sleeve form a first rotating path, the inner wall of the middle part of the second sleeve and the outer wall of the ejector rod form a second rotating path, and the first rotating path is opposite to the second rotating path. Further, the whole T shape structure that is of second sleeve, the fixed stop collar that is provided with in bottom both ends of second sleeve, stop collar keep away from the both ends of second sleeve all concave from its axle center and be equipped with the spacing groove, the groove length direction of spacing groove all is perpendicular with the bottom axle center of second sleeve, the cell wall and the roof sliding contact who corresponds of spacing groove. Further, the top plate comprises a connecting part and a clamping part; the peripheral surface of the connecting part is in sliding connection with the groove wall of the limiting groove, one end of the connecting part is fixedly connected with the balls at the two ends of the bottom of the second sleeve, and the other end of the connecting part is fixedly connected with one end of the clamping part; The other end of the clamping part is abutted with the clamping part of the valve seat, and the circumferential surface contour of the clamping part is matched with the cross section contour of the clamping part of the valve seat. Further, the flange extends from the plate edge of the support plate to the bottom of the second sleeve, and the inner wall of the flange is abutted against the peripheral surface of the valve body. Furthermore, one end of the ejector rod close to the ball is in a conical structure, one end of the ejector rod far away from the ball a handle is fixedly arranged. One or more technical solutions provided in the embodiments of the present utility model at least have the following technical effects or advantages: The supporting plate is buckled at the end part of the valve body to fix the whole position. The first sleeve is rotatably arranged at the center of the supporting plate, and the second sleeve is in threaded connection with the inner wall of the first sleeve to form a telescopic transmission structure. The ejector rod is inserted into the second sleeve, and one end of the ejector rod axially moves to abut against the ball to push the ball to