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CN-224229290-U - High-pressure-difference small-flow accurate control regulating valve

CN224229290UCN 224229290 UCN224229290 UCN 224229290UCN-224229290-U

Abstract

The utility model discloses a high-pressure-difference small-flow precise control regulating valve which comprises a control box and an upper valve cover arranged at the lower position of the control box, wherein when the regulating valve is used, a cylinder body drives a valve core to be far away from or close to a valve seat through a telescopic valve rod when the flow is required to be regulated, so that a gap between the valve seat and the valve core is enlarged or reduced, the flow is regulated, a clamping block can be completely clamped into a clamping groove when the valve core is required to be cut off, and water in a water inlet channel can be blocked because a sealing gasket outside the clamping block and the valve core is made of rubber materials, so that the sealing performance of the high-pressure-difference small-flow precise control regulating valve is improved.

Inventors

  • ZHANG KAIQIAN
  • HAN JITAI
  • Hua Jiong
  • HUANG YAN
  • YANG FANG

Assignees

  • 无锡华益电力阀门有限公司
  • 无锡学院

Dates

Publication Date
20260512
Application Date
20250519

Claims (7)

  1. 1. A high-pressure difference small-flow accurate control regulating valve is characterized by comprising A control box (1) and an upper valve cover (4) arranged at a position below the control box (1); A liquid crystal display screen (16) and a control button (15) are arranged at the front position of the control box (1); The left side and the right side of the lower end of the upper valve cover (4) are provided with support columns (5), the lower end of each support column (5) is connected with a lower valve cover (12), and a gland (6) is arranged at the upper end of each lower valve cover (12) and at the inner side of each support column (5); An air cylinder body (14) is arranged in the control box (1) and positioned at the inner side of the support column (5), and a telescopic valve rod (13) is connected to the lower end of the air cylinder body (14) and positioned at the inner side of the support column (5), the gland (6) and the connecting block (10); A connecting block (10) is arranged at the lower end position of the lower valve cover (12), a valve seat (25) is connected at the lower end position of the connecting block (10), and a water inlet pipe (8) and a water outlet pipe (11) are respectively connected at the left side and the right side of the valve seat (25); The valve is characterized in that a valve seat (25) is arranged at the inner position of the valve body (9), a clamping groove (24) is formed in the valve body (9) and located below the valve seat (25), a water inlet channel (23) and a water outlet channel (26) are respectively formed in the valve body (9) and located at the left side and the right side of the valve seat (25), a valve core (22) is connected to the inner side of the valve body (9) and located at the lower end of the telescopic valve rod (13), a sealing gasket (28) is arranged at the outer position of the valve core (22), and a clamping block (27) is connected to the inner side of the clamping groove (24) and located at the lower end of the sealing gasket (28); The waterproof device is characterized in that a waterproof ring (17) is arranged on the inner wall of the connecting block (10) and positioned at the outer position of the telescopic valve rod (13), a waterproof sleeve (19) is arranged on the inner wall of the waterproof ring (17), and a water absorption pad (18) is connected to the lower end of the waterproof ring (17) and positioned at the outer position of the telescopic valve rod (13); The cylinder body (14) is connected with an external pneumatic device; Through the cooperation of cylinder body (14), telescopic valve rod (13), case (22), sealed pad (28), fixture block (27) and draw-in groove (24) is used, has strengthened the sealing performance of high pressure differential low discharge accurate control governing valve, and waterproof ring (17), water absorption pad (18) and waterproof sleeve (19) are used in the cooperation, then have further strengthened the sealing performance of high pressure differential low discharge accurate control governing valve.
  2. 2. The high-pressure-difference small-flow precise control regulating valve is characterized in that a first connecting disc (2) is connected to the lower end position of the control box (1), and a second connecting disc (3) is connected to the upper end position of the upper valve cover (4).
  3. 3. The high-pressure-difference small-flow precise control regulating valve according to claim 2 is characterized in that the first connecting disc (2) is connected with the second connecting disc (3) through bolts and nuts, and flange discs (7) are connected to the outer side positions of the water inlet pipe (8) and the water outlet pipe (11).
  4. 4. The high-pressure-difference small-flow precise control regulating valve is characterized in that the first connecting disc (2) and the second connecting disc (3) are of hollow disc-shaped structures, and stability of connection and convenience of disassembly of the control box (1) and the upper valve cover (4) are enhanced through arrangement of the first connecting disc (2), the second connecting disc (3), the bolts, the nuts and the threaded connection.
  5. 5. The high-pressure-difference small-flow precise control regulating valve of claim 1, wherein a placing groove (20) is formed in the inner position of the upper end of the waterproof ring (17), waterproof glue (21) is arranged in the inner position of the placing groove (20), and the waterproof glue (21) is made of acrylic emulsion.
  6. 6. The high-pressure-difference small-flow precise control regulating valve of claim 5, wherein the waterproof ring (17) is connected with the telescopic valve rod (13) in a sleeving manner, and the waterproof ring (17) is connected with the inner wall of the connecting block (10) in a cementing manner.
  7. 7. The high-pressure-difference small-flow precise control regulating valve of claim 6, wherein the telescopic valve rod (13) is extruded by a waterproof sleeve (19) and a water absorption pad (18), the waterproof sleeve (19) and the water absorption pad (18) are respectively made of rubber and sponge materials, and the stability of the installation of the waterproof ring (17) is enhanced through the cooperation of cementing, sleeving and extrusion.

Description

High-pressure-difference small-flow accurate control regulating valve Technical Field The utility model belongs to the technical field of flow regulation, and particularly relates to a high-pressure-difference small-flow precise control regulating valve. Background The utility model relates to a high pressure difference small flow accurate control regulating valve which is a valve for accurately regulating small flow fluid under the condition of high pressure difference and controls the flow of the fluid by regulating the opening of the valve, the high pressure difference small flow accurate control regulating valve is mainly formed by combining a control box, a first connecting disc, a second connecting disc, an upper valve cover, a supporting column, a gland, a flange, a water inlet pipe, a valve body, a connecting block, a water outlet pipe, a lower valve cover, a telescopic valve rod, a cylinder body, a control button, a liquid crystal display screen, a waterproof ring, a water absorption pad, a waterproof sleeve, a placing groove, waterproof glue, a valve core, a water inlet channel, a clamping groove, a valve seat, a water outlet channel, a clamping block, a sealing pad and the like, the existing high-pressure-difference small-flow accurate control regulating valve is poor in sealing performance when in use, and water leakage can cause the influence on the normal operation of equipment, so that the high-pressure-difference small-flow accurate control regulating valve is indispensable. Disclosure of utility model The utility model aims to provide a high-pressure-difference small-flow accurate control regulating valve, which aims to solve the problem that the normal operation of equipment is affected by water flow leakage caused by poor sealing performance of the existing high-pressure-difference small-flow accurate control regulating valve in the prior art. In order to achieve the above purpose, the utility model provides the following technical scheme that the high pressure difference small flow accurate control regulating valve comprises A control box and an upper valve cover arranged at a position below the control box; a liquid crystal display screen and a control button are arranged at the front part of the control box; Support columns are arranged at the left side and the right side of the lower end of the upper valve cover, a lower valve cover is connected at the lower end of the support column, and a gland is arranged at the upper end of the lower valve cover and at the inner side of the support column; The control box is internally provided with a cylinder body at the inner side position of the support column, and the lower end of the cylinder body is connected with a telescopic valve rod at the inner side position of the support column, the gland and the connecting block; The lower end of the lower valve cover is provided with a connecting block, the lower end of the connecting block is connected with a valve seat, and the left side and the right side of the valve seat are respectively connected with a water inlet pipe and a water outlet pipe; The valve body is provided with a valve seat at the inner position, a clamping groove is formed in the valve body and located below the valve seat, a water inlet channel and a water outlet channel are respectively formed in the valve body and located at the left side and the right side of the valve seat, a valve core is connected to the inner side of the valve body and located at the lower end of the telescopic valve rod, a sealing gasket is arranged at the outer position of the valve core, and a clamping block is connected to the inner side of the clamping groove and located at the lower end of the sealing gasket; The waterproof device comprises a connecting block, a waterproof ring, a waterproof sleeve, a water absorption pad, a water absorption sleeve and a water absorption sleeve, wherein the waterproof ring is arranged on the inner wall of the connecting block and positioned at the outer position of the telescopic valve rod; the cylinder body is connected with an external pneumatic device; through the cooperation of cylinder body, telescopic valve rod, case, sealed pad, fixture block and draw-in groove is used, has strengthened the sealing performance of high pressure differential low discharge accurate control governing valve, and waterproof ring, water absorption pad and waterproof sleeve's cooperation is used, then has further strengthened the sealing performance of high pressure differential low discharge accurate control governing valve. Preferably, a first connecting disc is connected to the lower end of the control box, and a second connecting disc is connected to the upper end of the upper valve cover. Preferably, the first connecting disc is connected with the second connecting disc through bolts and nuts, and flanges are connected to the outer side positions of the water inlet pipe and the water outlet pipe. Preferably, the first connecti