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CN-121977086-A - Three-piece type soft sealing floating ball valve

CN121977086ACN 121977086 ACN121977086 ACN 121977086ACN-121977086-A

Abstract

The application relates to the technical field of ball valves, and discloses a three-piece type soft sealing floating ball valve which comprises a valve body, wherein a ball body is rotationally connected to the valve body, a valve rod is rotationally connected to the valve body, a fixing groove for the valve rod to be inserted is formed in the ball body, the valve rod is fixedly arranged on the ball body, a containing groove is formed in the valve rod, a driving spring is arranged in the containing groove, a conductive ball is arranged at one end of the driving spring, a driving block is arranged at the other end of the driving spring, a through hole communicated with the containing groove is formed in the valve rod, an indicating strip for being inserted into the containing groove is connected in a sliding manner in the through hole, the conductive ball abuts against the wall of the fixing groove, and the driving spring drives the driving block to move, so that the driving block can be positioned at one side of the through hole towards the containing groove, the indicating strip can not move into the containing groove from the through hole, whether the indicating strip protrudes or not is observed, and whether the conductive ball is directly judged to be installed, and the condition that a worker is leaked to install the conductive ball is avoided.

Inventors

  • YANG XIAOJUN
  • ZHENG GUANGYUAN
  • CHEN BIAO
  • REN SHAOJIE
  • LU ZONGHE
  • Tao Yuexing

Assignees

  • 慎江阀门有限公司

Dates

Publication Date
20260505
Application Date
20260310

Claims (8)

  1. 1. The three-piece type soft sealing floating ball valve is characterized in that the valve rod (2) is provided with a containing groove (21), a driving spring (211) is arranged in the containing groove (21), one end of the driving spring (211) is provided with a conductive ball (214), the other end of the driving spring (211) is provided with a driving block (212), the valve rod (2) is provided with a through hole (22) communicated with the containing groove (21), an indicator strip (221) used for being inserted into the containing groove (21) is slidably connected on the through hole (22), and when the driving spring (211) is positioned in the containing groove (21), the driving block (212) is abutted against the indicator strip (221) to protrude out of the through hole (22), and the conductive ball (214) is abutted against the wall of the groove (31).
  2. 2. The three-piece soft sealing floating ball valve of claim 1, wherein the valve rod (2) is provided with a handle (11), the valve rod (2) is provided with a fastening bolt (12), the fastening bolt (12) is used for fixing the handle (11) on the valve rod (2), the valve rod (2) is rotatably connected with a fastening gasket (13), the fastening gasket (13) is provided with a second positioning block (131), the fastening bolt (12) is provided with a first positioning block (122), and when the first positioning block (122) abuts against the second positioning block (131), the fastening bolt (12) is screwed on the valve rod (2).
  3. 3. The three-piece soft sealing floating ball valve of claim 2, wherein the fastening gasket (13) is provided with an indication hole (132) for the indication bar (221) to pass through, the indication hole (132) extends along the circumferential direction of the fastening gasket (13), and when the indication bar (221) protrudes out of the perforation (22), the indication bar (221) drives the fastening gasket (13) to rotate through the hole wall of the indication hole (132).
  4. 4. The three-piece soft sealing floating ball valve of claim 3, wherein the indicator strip (221) is provided with a driving spring piece (222), the driving spring piece (222) deforms towards the direction of the driving spring (211), and when the indicator strip (221) is inserted into the accommodating groove (21), the driving spring piece (222) abuts against the driving block (212).
  5. 5. The three-piece soft sealing floating ball valve of claim 4, wherein the fastening gasket (13) is provided with a moving block (133) for inserting the through hole (22), the moving block (133) is provided with a moving inclined surface (134), and the inclination direction of the moving inclined surface (134) is the same as the inclination direction of the indicating hole (132).
  6. 6. The three-piece soft sealing floating ball valve of claim 5, wherein the fastening gasket (13) is provided with a plurality of limiting blocks (15), the limiting blocks (15) are distributed along the circumferential direction of the fastening gasket (13), the handle (11) is provided with limiting strips (151), the limiting strips (151) can be positioned on the rotating path of the limiting blocks (15), and when the limiting strips (151) are positioned between two adjacent limiting blocks (15), the moving blocks (133) are positioned in the through holes (22).
  7. 7. The three-piece soft sealing floating ball valve according to claim 6, wherein the outer side of the fastening gasket (13) deforms towards the side far away from the valve rod (2), and the limiting block (15) can be abutted against the limiting strip (151) when the fastening bolt (12) abuts against the fastening gasket (13).
  8. 8. The three-piece soft sealing floating ball valve of claim 1, wherein the driving block (212) is provided with a driving inclined surface (213), the distance between the driving inclined surface (213) and the driving spring (211) gradually decreases along the direction from the accommodating groove (21) to the through hole (22), and the driving inclined surface (213) is positioned on the moving path of the indication rod.

Description

Three-piece type soft sealing floating ball valve Technical Field The application relates to the technical field of ball valves, in particular to a three-piece type soft sealing floating ball valve. Background The floating ball valve is a ball valve, the ball body of the ball valve is not arranged on a fixed shaft, but can float freely in a valve cavity, the ball body is driven to rotate by a valve rod, and the on-off control of fluid is realized, wherein three pieces are that end connecting pieces are fixed on the upper side and the lower side of a middle valve body, the whole valve is not required to be detached from a pipeline by only detaching parts of the middle valve body, a valve seat of the ball valve is usually made of soft sealing materials such as PTFE filler and the like, and meanwhile, the soft valve seat of the ball valve is an electrical insulator. This means that they are not easily conductive, and when charges in the fluid accumulate on their surfaces and between the ball and the valve seat, mutual friction occurs, which generates static electricity, which, if difficult to conduct out in time, may cause the valve to seize or work abnormally, and accumulate to some extent and encounter ignition sources such as sparks, which may cause serious consequences such as fire or explosion. The ball valve in the related art comprises a valve body, a flow hole for fluid to pass through is formed in the valve body, a valve rod is connected to the valve body in a rotating mode, a ball body is arranged on the valve rod, a fixing groove for the valve rod to insert is formed in the ball body, the ball body is used for controlling whether circulation passes through the flow hole, a conductive ball is arranged on the valve rod, and the conductive ball abuts against the fixing groove, so that static electricity of the ball body is led out. Because the assembly is very easy to miss in the assembly process of the ball valve, the ball valve can not directly observe whether the conductive ball is assembled, and therefore the risk of missing the conductive ball in the ball valve can be caused. Disclosure of Invention In order to solve the problem that the conductive ball in the ball valve may have neglected loading, the application provides a three-piece type soft sealing floating ball valve. The application provides a three-piece type soft sealing floating ball valve, which adopts the following technical scheme: The three-piece type soft sealing floating ball valve comprises a valve body, wherein a ball body is rotationally connected to the valve body, a valve rod is rotationally connected to the valve body, a fixing groove for the valve rod to insert is formed in the ball body, the valve rod is fixedly arranged on the ball body, a containing groove is formed in the valve rod, a driving spring is arranged in the containing groove, a conductive ball is arranged at one end of the driving spring, a driving block is arranged at the other end of the driving spring, a through hole communicated with the containing groove is formed in the valve rod, an indication strip used for being inserted into the containing groove is slidingly connected to the through hole, and when the driving spring is located in the containing groove, the driving block abuts against the indication strip to protrude out of the through hole, and the conductive ball abuts against the groove wall of the fixing groove. Through the technical scheme, the conductive ball is pushed to be abutted against the groove wall of the fixed groove through the driving spring, so that the conductive ball can be stably abutted against the ball body to lead out static electricity in the ball body, when the driving spring, the conductive ball and the driving block are placed in the accommodating groove, the conductive ball is abutted against the groove wall of the fixed groove at the moment, the driving spring drives the driving block to move, the driving block can be located on one side of the perforation towards the accommodating groove, the indication strip cannot move from the perforation to the accommodating groove, and accordingly workers can observe whether the indication strip protrudes to directly judge whether the conductive ball is installed or not, and the situation that the workers neglect to install the conductive ball is avoided. Optionally, a handle is arranged on the valve rod, a fastening bolt is arranged on the valve rod and used for fixing the handle on the valve rod, a fastening gasket is rotationally connected on the valve rod, a second positioning block is arranged on the fastening gasket, a first positioning block is arranged on the fastening bolt, and when the first positioning block abuts against the second positioning block, the fastening bolt is screwed on the valve rod. Through adopting above-mentioned technical scheme, the staff twists fastening bolt, lets first locating piece can align the second locating piece, and the staff can know fast