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CN-224214718-U - Double-filter stop valve

CN224214718UCN 224214718 UCN224214718 UCN 224214718UCN-224214718-U

Abstract

The utility model belongs to the technical field of stop valves, and particularly relates to a double-filtering stop valve, which comprises a valve body, wherein a closed valve cover is arranged at the top of the valve body, a valve rod is connected to the inner thread of the closed valve cover, a separation seat is fixedly arranged in the valve body, a closed port is formed at the top of the separation seat, a closed valve clack is arranged in the closed port, a mounting hole is formed in the bottom of the closed valve clack, a telescopic assembly is arranged in the mounting hole, a first filter plate is arranged at the bottom of the telescopic assembly, the valve rod can be driven to move upwards together with the first filter plate by rotating the valve rod, the closed valve cover can be opened by upwards moving the closed valve cover, so that liquid can flow into a liquid outlet cavity from a liquid inlet cavity, and a connecting rod upwards moves to squeeze a spring, so that the first filter plate upwards moves to prop against the bottom of the closed port, and the liquid flowing through the closed port is filtered, so that the effect of filtering the liquid conveyed in the valve body is achieved.

Inventors

  • Ma Saijiang
  • YANG CHAO
  • Quan Shengtian
  • JIN ZHIXIAO
  • ZHU WEI

Assignees

  • 浙江冠正阀门股份有限公司

Dates

Publication Date
20260508
Application Date
20250512

Claims (6)

  1. 1. The double-filtering stop valve comprises a valve body (1), wherein a closed valve cover (11) is arranged at the top of the valve body (1), a valve rod (12) is connected with the inside of the closed valve cover (11) in a threaded manner, and the double-filtering stop valve is characterized in that a separation seat (2) is fixedly arranged in the valve body (1), a closed opening (21) is formed in the top of the separation seat (2), a closed valve flap (3) is arranged in the closed opening (21), the bottom of the valve rod (12) penetrates into the valve body (1) and is fixedly arranged at the top of the closed valve flap (3), a mounting hole (31) is formed in the bottom of the closed valve flap (3), a telescopic assembly (4) is arranged in the mounting hole (31), a first filter plate (5) is arranged at the bottom of the telescopic assembly (4), and the telescopic assembly (4) is used for driving the first filter plate (5) to move up and down; the inside of valve body (1) is separated into feed liquor chamber (6) and play liquid chamber (7) by separating seat (2), go out the bottom in liquid chamber (7) and install butt joint piece (71), the top fixed mounting of butt joint piece (71) has thimble (72), butt joint piece (71) set up under first filter (5), the surface of butt joint piece (71) is provided with collection subassembly (8) for collect filterable impurity.
  2. 2. The double-filtering stop valve according to claim 1, wherein the telescopic component (4) comprises a limiting ring (401) fixedly installed at the bottom of the inner wall of the mounting hole (31), a connecting rod (402) is slidably installed in the limiting ring (401), a connecting ring (403) is fixedly installed at the top of the connecting rod (402), an extrusion spring (404) is sleeved on the outer surface of the connecting rod (402), and the connecting rod (402) can move up and down in the mounting hole (31).
  3. 3. The double-filtering stop valve according to claim 2, wherein the top of the inner wall of the mounting hole (31) penetrates through the closing valve clack (3) and extends into the valve rod (12), the top of the extrusion spring (404) is mounted at the bottom of the connecting ring (403), the bottom of the extrusion spring (404) is mounted at the top of the limiting ring (401), and the bottom of the connecting rod (402) is fixedly mounted at the top of the first filter plate (5) and is used for driving the first filter plate (5) to move up and down together.
  4. 4. The double-filtering stop valve according to claim 1, wherein the collecting assembly (8) comprises a leak hole (801) formed in the bottom of the valve body (1), the top of the inner wall of the leak hole (801) penetrates into the valve body (1), a threaded sleeve (802) is fixedly arranged at the bottom of the valve body (1), and a closing cap (803) is connected to the outer surface of the threaded sleeve (802) in a threaded mode.
  5. 5. A dual filter shut off valve according to claim 4, wherein said weep hole (801) is provided outside the abutment (71), said weep hole (801) being used for collecting filtered impurities.
  6. 6. The double-filtering stop valve according to claim 1, wherein a second filter plate (9) is fixedly arranged on the inner wall of the liquid outlet cavity (7), and the second filter plate (9) is used for filtering liquid filtered by the first filter plate (5) again.

Description

Double-filter stop valve Technical Field The utility model belongs to the technical field of stop valves, and particularly relates to a double-filter stop valve. Background The opening and closing part of the stop valve is a plug-shaped valve clack, the sealing upper surface is a plane or a conical surface, and the valve clack moves linearly along the central line of the valve seat. The valve rod pressure is used for tightly attaching the valve clack sealing surface and the valve seat sealing surface to prevent medium from flowing and only allow the medium to flow unidirectionally. For a double filter shut-off valve, the prior art has, for example: Chinese patent publication No. CN215928401U discloses a filter type double-seal stop valve, which comprises a valve body and a connecting flange, the connecting flange is welded at both ends of the valve body, and a blocking device is installed inside the valve body. This two sealed stop valves of filtration formula, through mutually supporting between structures such as first filter screen, second filter screen, valve rod, valve clack and lining fluorine pad, can filter water through first filter screen and second filter screen, through mutually supporting between structures such as disc, sealed pad and montant, make the valve rod remain vertical direction throughout and remove, can improve the sealing performance of valve rod department through sealed pad simultaneously. According to the device, the filter screens are respectively arranged at the water inlet and the water outlet of the stop valve to filter liquid flowing into the stop valve, so that the phenomenon that impurities in the stop valve are accumulated and blocked is avoided, but after the impurities are filtered in the stop valve for a long time, the surfaces of the filter screens are blocked by the adhesion of the impurities, so that the liquid flows slowly in the stop valve, and the flow rate of the liquid is influenced, and therefore, the double-filter stop valve is provided for solving the problems. Disclosure of utility model In order to make up the defects of the prior art, the utility model provides a double-filtering stop valve aiming at the problems of the prior equipment. The technical scheme adopted by the utility model for solving the technical problems is that the double-filtering stop valve comprises a valve body, wherein a closed valve cover is arranged at the top of the valve body, a valve rod is connected to the inner thread of the closed valve cover, a separation seat is fixedly arranged in the valve body, a closed opening is formed in the top of the separation seat, a closed valve clack is arranged in the closed opening, the bottom of the valve rod penetrates through the valve body and is fixedly arranged at the top of the closed valve clack, a mounting hole is formed in the bottom of the closed valve clack, a telescopic assembly is arranged in the mounting hole, a first filter plate is arranged at the bottom of the telescopic assembly, and the telescopic assembly is used for driving the first filter plate to move up and down; The inside of valve body is separated into inlet chamber and play liquid chamber by the partition seat, go out the bottom in liquid chamber and install the butt joint piece, the top fixed mounting of butt joint piece has the thimble, the butt joint piece sets up under first filter, the surface of butt joint piece is provided with the collection subassembly for collect filterable impurity. Preferably, the telescopic component comprises a limiting ring fixedly installed at the bottom of the inner wall of the mounting hole, a connecting rod is slidably installed in the limiting ring, a connecting ring is fixedly installed at the top of the connecting rod, an extrusion spring is sleeved on the outer surface of the connecting rod, and the connecting rod can move up and down in the mounting hole. Preferably, the top of the inner wall of the mounting hole penetrates through the closed valve clack and extends to the inside of the valve rod, the top of the extrusion spring is mounted at the bottom of the connecting ring, the bottom of the extrusion spring is mounted at the top of the limiting ring, and the bottom of the connecting rod is fixedly mounted at the top of the first filter plate and used for driving the first filter plate to move up and down together. Preferably, the collection assembly comprises a leak hole formed in the bottom of the valve body, the top of the inner wall of the leak hole penetrates into the valve body, a thread sleeve is fixedly arranged at the bottom of the valve body, and a closing cap is connected to the outer surface of the thread sleeve in a threaded manner. Preferably, the leak hole is arranged outside the butt joint block, and the leak hole is used for collecting the filtered impurities. Preferably, a second filter plate is fixedly arranged on the inner wall of the liquid outlet cavity, and the second filter plate is used for filt