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CN-122014860-A - Integrated double-channel stop valve

CN122014860ACN 122014860 ACN122014860 ACN 122014860ACN-122014860-A

Abstract

The invention discloses an integrated double-channel stop valve, which belongs to the technical field of valves, and comprises a stop valve body, wherein a pressure release valve is arranged on the stop valve body, the upper end of the stop valve body is detachably connected with a mounting cover, a threaded rod is connected to the mounting cover in a threaded manner, the top of the threaded rod is detachably connected with a first hand wheel, the end part of the threaded rod is inserted into the stop valve body, a sealing table is arranged in the stop valve body, the insertion end of the threaded rod is provided with a valve clack assembly, when the valve is closed, a grating cylinder and a grating ring body are driven by the first hand wheel to move downwards, so that the outer wall of the grating cylinder is attached to the upper end of the sealing table, water can circulate through a gap at the moment, the upward reverse thrust borne by the valve clack is small, the second hand wheel is rotated to gradually stagger the gap between the grating ring body and the grating cylinder, the circulation section is gradually contracted, the medium flow speed and pressure change are uniform, instant high-pressure recoil cannot be formed, and the resistance when the valve is closed can be reduced.

Inventors

  • HONG CHUNJIE
  • LI YONGCHAO
  • ZHANG WENHAO
  • CAO YANG
  • MAO YUNYUN

Assignees

  • 天津百利展发集团有限公司

Dates

Publication Date
20260512
Application Date
20260402

Claims (10)

  1. 1. The utility model provides an integral type binary channels stop valve, including stop valve body (100), be provided with relief valve (102) on stop valve body (100), the upper end of stop valve body (100) can be dismantled and be connected with installation lid (104), threaded connection has threaded rod (103) on installation lid (104), the top of threaded rod (103) can be dismantled and be connected with first hand wheel (101), the inside of stop valve body (100) is inserted at the tip of threaded rod (103), a serial communication port, the inside of stop valve body (100) is provided with sealing platform (106), the inserted end of threaded rod (103) is provided with the valve clack subassembly, valve clack subassembly cooperation sealing platform (106) realize closing, when valve clack subassembly is closed, slowly reduce the flow cross section.
  2. 2. The integrated double-channel stop valve according to claim 1, wherein the valve clack assembly comprises a grating cylinder (201) and a grating ring body (202), the grating ring body (202) is rotationally connected with the inside of the grating cylinder (201), the grating cylinder (201) is detachably connected with the bottom of the threaded rod (103), the top of the grating ring body (202) is detachably connected with a transmission rod (203) penetrating through the threaded rod (103), the upper end of the transmission rod (203) is detachably connected with a second hand wheel (200), the first hand wheel (101) is rotated, the threaded rod (103) drives the grating cylinder (201) and the grating ring body (202) to move downwards, the outer wall of the grating cylinder (201) is attached to the inner wall of the sealing table (106), the second hand wheel (200) is rotated again to enable the grating ring body (202) to be staggered with the gap of the grating cylinder (201), and the overlapping area of the gap is gradually reduced.
  3. 3. The integrated double-channel stop valve according to claim 2, wherein a plurality of sealing slots (205) are formed in the inner wall of the grating cylinder (201), a plurality of sealing tooth blocks (204) are fixedly connected to the outer wall of the grating ring body (202), the sealing tooth blocks (204) are slidably connected with the inside of the sealing slots (205), and the sealing tooth blocks (204) slide transversely in the inside of the sealing slots (205) when the grating ring body (202) rotates.
  4. 4. The integrated double-channel stop valve according to claim 2, wherein an arc-shaped groove (105) is formed in the upper end of the threaded rod (103), a first limiting block (207) is fixedly connected to the outer wall of the transmission rod (203), the first limiting block (207) is slidably connected with the inside of the arc-shaped groove (105), an inserting groove (206) is formed in the upper end of the first limiting block (207), an arc-shaped insert block (301) is slidably connected to the inside of the arc-shaped groove (105), and a positioning insert block (302) is fixedly connected to the bottom of the arc-shaped insert block (301).
  5. 5. The integrated double-channel stop valve according to claim 3, wherein rubber layers are arranged on two sides of the outer part of the sealing tooth block (204), and a sealing ring is arranged at the bottom of the grid cylinder (201).
  6. 6. The integrated dual-channel stop valve according to claim 1, wherein the valve clack assembly comprises a grating cylinder (201) and a sealing ring body (211), the sealing ring body (211) is in telescopic connection with the interior of the grating cylinder (201), the bottom of the sealing ring body (211) contacts with the upper end of the sealing table (106), and the valve is closed after the grating cylinder (201) moves downwards to coincide with the sealing ring body (211).
  7. 7. The integrated double-channel stop valve according to claim 6, wherein a plurality of sealing slots (205) are formed in the inner wall of the grating cylinder (201), a plurality of sealing tooth blocks (204) are formed in the outer wall of the sealing ring body (211), and the sealing tooth blocks (204) are in sliding connection with the inside of the sealing slots (205).
  8. 8. The integrated dual channel stop valve of claim 6, wherein the sealing ring body (211) is provided with an extension assembly, and the extension assembly enables the sealing ring body (211) to maintain an outwards extending state when the valve is opened.
  9. 9. The integrated double-channel stop valve according to claim 8, wherein the extending component comprises a connecting plate, the connecting plate is fixedly connected to the inner wall of the sealing ring body (211) close to the bottom, the upper end of the connecting plate is fixedly connected with a sliding rod (208), the sliding rod (208) penetrates through the grating cylinder (201) and is inserted into the threaded rod (103), the inserting end of the sliding rod (208) is fixedly connected with a reset spring (209), the other end of the reset spring (209) is fixedly connected with the inner wall of the threaded rod (103), the outer wall of the sliding rod (208) is fixedly connected with a plurality of second limiting blocks (210), and the second limiting blocks (210) are in sliding connection with the threaded rod (103).
  10. 10. The integrated double-channel stop valve according to claim 6, wherein the inner wall of the grating cylinder (201) is provided with a sealing ring, and the bottom of the sealing ring body (211) is also provided with a sealing ring.

Description

Integrated double-channel stop valve Technical Field The invention belongs to the technical field of valves, and particularly relates to an integrated double-channel stop valve. Background The closing principle of the stop valve is that the valve rod pressure is used to make the sealing surface of the valve clack closely adhere to the sealing surface of the valve seat to prevent medium from flowing. In the prior art, the stop valve and the pressure release valve are usually arranged independently, a pipeline is required to be additionally arranged for connection, the integration level is low, and the stop valve is usually used for cutting off control on downstream equipment. The invention discloses an integrated double-channel stop valve, which comprises a main valve body, and a liquid inlet bottom cavity and a liquid outlet top cavity which are formed in the main valve body, wherein a valve seat ring is arranged between the liquid inlet bottom cavity and the liquid outlet top cavity, a valve core disc is arranged outside the valve seat ring, and the valve core disc and the valve seat ring are matched in an opening and closing way through axial movement of the valve core disc, so that the stop and flow control of the stop valve are realized. The valve can realize the pressure relief function, but the pipeline medium below the valve clack can generate upward pressure on the valve clack in the closing process of the stop valve, the flow cross section area of the medium is continuously reduced along with the downward movement of the valve clack, the flow speed and the pressure distribution of the medium are changed, the upward reaction force can be gradually increased, the resistance of the hand wheel is increased, and the closing of the stop valve is extremely laborious. Disclosure of Invention This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application. In order to solve the problem that in the prior art, when the stop valve is closed, a pipeline medium below the valve clack can generate upward pressure on the valve clack, the flow cross section area of the medium is continuously reduced along with the downward movement of the valve clack, the flow speed and the pressure distribution of the medium are changed, the upward reaction force can be gradually increased, so that the resistance of a hand wheel is increased more and more, and the closing of the stop valve is extremely laborious. The utility model provides an integral type binary channels stop valve, is provided with the relief valve including stopping the valve body on stopping the valve body, and the upper end of stopping the valve body can be dismantled and be connected with the installation lid, and installation is covered threaded connection and is had the threaded rod, and the top of threaded rod can be dismantled and be connected with first hand wheel, and the tip of threaded rod inserts the inside of stopping the valve body, and the inside of stopping the valve body is provided with sealed platform, and the inserted end of threaded rod is provided with the valve clack subassembly, and valve clack subassembly cooperation sealed platform realizes closing, and when the valve clack subassembly was closed, slowly reduces the flow cross section. In the technical scheme, when the valve clack assembly is closed, the flow section is slowly reduced, the medium flow speed and the pressure change are uniform, instant high-pressure recoil is not formed, and the resistance of the valve when the valve is closed is reduced. On this basis, the valve clack subassembly includes a grid section of thick bamboo and grid ring body, the grid ring body is connected with the inside rotation of a grid section of thick bamboo, the grid section of thick bamboo can be dismantled with the bottom of threaded rod and be connected with, the top of grid ring body can be dismantled and be connected with the transfer line that passes the threaded rod, the upper end of transfer line can be dismantled and be connected with the second hand wheel, rotate first hand wheel for the threaded rod drives a grid section of thick bamboo and grid ring body and moves down, the outer wall of a grid section of thick bamboo is laminated with the inner wall of sealing station, the gap department that the rotatory second hand wheel makes grid ring body and a grid section of thick bamboo again staggers, the overlapping area of gap reduces gradually. In the technical scheme, through the grid structure cooperation of grid section of thick bamboo and grid ring body, can also intercept the solid impurity in the medium in sealed in-process, avoid impurity card to block the valve clack subassembly, avoid impurity to get into an