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CN-120437715-B - Hydraulic drive type flat gate valve

CN120437715BCN 120437715 BCN120437715 BCN 120437715BCN-120437715-B

Abstract

The invention discloses a hydraulic driving type flat gate valve, and relates to the technical field of flat gate valves. Including the fixed pipe, the outside fixed connection of fixed pipe and valve body, the inner chamber has been seted up to the inside of fixed pipe, and the inner wall fixedly connected with filter screen of valve body one end is kept away from to the inner chamber, and the middle part of filter screen rotates and is connected with the pivot, and the pivot runs through the filter screen, and the pivot is close to the outside fixedly connected with impeller of valve body, and the one end fixedly connected with cleaning plate of impeller is kept away from to the pivot, the outside fixedly connected with dead lever of pivot, and the one end fixedly connected with scraper blade of pivot is kept away from to the dead lever. This hydraulic drive formula flat gate valve drives cleaning plate and scraper blade through the pivot and rotates to the cleaning plate prevents that the filter screen from blockking up to the outside of filter screen clean, and the scraper blade is clean to the inside of inner chamber simultaneously, prevents that impurity from piling up in the pipeline, causes pipeline jam, equipment trouble, ensures the stable, the reliable operation of whole fluid conveying system.

Inventors

  • LIAO XUTANG
  • ZHANG SHANQI
  • XIA YU
  • XU HUI

Assignees

  • 凯瑞特阀业集团有限公司

Dates

Publication Date
20260512
Application Date
20250508

Claims (6)

  1. 1. A hydraulically driven flat gate valve, comprising: the hydraulic valve comprises a valve body (1), wherein a valve cover (3) is fixedly connected to the top of the valve body (1), a protection cylinder (4) is fixedly connected to the top of the valve cover (3), and a hydraulic cylinder (8) is fixedly connected to the top of the protection cylinder (4); The connecting assembly (5) is fixedly connected with the output end of the hydraulic cylinder (8), the connecting assembly (5) is positioned in the protective cylinder (4), one end, far away from the hydraulic cylinder (8), of the connecting assembly (5) is fixedly connected with a valve rod (7), the valve rod (7) penetrates through the valve cover (3) and extends to the inside of the valve body (1), and the valve rod (7) is positioned in the center of the protective cylinder (4); The valve plate (6) is fixedly arranged at one end of the valve rod (7) far away from the connecting component (5), and the valve plate (6) is positioned in the valve body (1); The two pipe fittings (2) are fixedly arranged on the outer side of the valve body (1), the number of the two pipe fittings (2) is two, and the two pipe fittings (2) are symmetrically arranged by taking the valve body (1) as a center; The pipe fitting (2) comprises a fixed pipe (21), the fixed pipe (21) is fixedly connected with the outer side of the valve body (1), an inner cavity (25) is formed in the fixed pipe (21), the inner cavity (25) is in conical arrangement, the diameter of the inner cavity (25) gradually decreases towards the end close to the valve body (1), a filter screen (22) is fixedly connected to the inner wall of the inner cavity (25) away from the end of the valve body (1), a rotating shaft (23) is rotatably connected to the middle part of the filter screen (22), the rotating shaft (23) penetrates through the filter screen (22), an impeller (26) is fixedly connected to the outer side of the rotating shaft (23) close to the valve body (1), and a cleaning plate (24) is fixedly connected to one end of the rotating shaft (23) away from the impeller (26); The valve plate (6) comprises fixed blocks (61), the fixed blocks (61) are fixedly connected with the bottom of the valve rod (7), side plates (62) are slidably connected to the outer sides of the fixed blocks (61), the number of the side plates (62) is two, and the two side plates (62) are symmetrically arranged with the fixed blocks (61) as the center; The side plates (62) are far away from one ends of the fixed blocks (61) and provided with through holes (63), the through holes (63) penetrate through the side plates (62) on two sides of the fixed blocks (61), one side, close to the fixed blocks (61), of each side plate (62) is fixedly connected with a compression spring (69), two ends of each compression spring (69) are respectively and fixedly connected with the side plates (62) on two sides, a baffle (65) is fixedly connected to the side, close to the fixed blocks (61), of each side plate (62), and gaps exist between the baffles (65) on two sides of the fixed blocks (61); The valve body (1) comprises a shell (11), connecting blocks (15) are fixedly connected to the inner wall of the shell (11), the connecting blocks (15) are located at one end, close to a valve cover (3), of the shell (11), the number of the connecting blocks (15) is two, the two connecting blocks (15) are symmetrically arranged by taking a valve plate (6) as a center, a trapezoid block (16) is fixedly connected to one side, far away from the shell (11), of the connecting blocks (15), rollers (17) are rotatably connected to the outer side of the trapezoid block (16), the number of the rollers (17) is multiple, the rollers (17) are uniformly distributed on two side edges of the trapezoid block (16), and the trapezoid block (16) is located at the interval of two side plates (62); The connecting assembly (5) comprises two fixing frames (51), bolts (52) are arranged on the outer sides of the fixing frames (51), the two fixing frames (51) are fixedly connected through the bolts (52), connecting cylinders (53) are fixedly connected to the inside of the fixing frames (51), the two connecting cylinders (53) are symmetrically arranged in number, circular plates (57) are fixedly connected to the end portions of the connecting cylinders (53) and located at intervals between the two connecting cylinders (53), and the two circular plates (57) are arranged.
  2. 2. The hydraulically driven flat gate valve of claim 1, wherein the number of the cleaning plates (24) is plural, the cleaning plates (24) are uniformly distributed with the rotating shaft (23) as the center, a fixing rod (27) is fixedly connected to the outer side of the rotating shaft (23), a scraper (28) is fixedly connected to one end of the fixing rod (27) far away from the rotating shaft (23), the outer side of the scraper (28) is in contact with the inner cavity (25), and the impeller (26) is located at the interval between the fixing rod (27) and the filter screen (22).
  3. 3. The hydraulically driven flat gate valve of claim 1, wherein the outer side of the side plate (62) close to the through hole (63) is fixedly connected with a fixing ring (68), one side of the fixing ring (68) away from the side plate (62) is obliquely arranged, the outer side of the side plate (62) is fixedly connected with a cylinder (610), the outer side of the cylinder (610) is sleeved with a sleeve (611), the sleeve (611) is slidably connected with the cylinder (610), the sleeve (611) is fixedly connected with the side plate (62), and the sleeve (611) and the cylinder (610) are respectively connected with the side plates on two sides.
  4. 4. The hydraulically driven flat gate valve of claim 3, wherein the outer side of the side plate (62) is fixedly connected with a return spring (64), the return spring (64) is located at the interval between a fixed ring (68) and a sleeve (611), a groove (67) is formed in one side, far away from the fixed block (61), of the side plate (62), the groove (67) is located in the return spring (64), a circular ring (66) is fixedly connected to the outer side, close to the groove (67), of the side plate (62), and the circular ring (66) is sleeved on the outer side of the groove (67).
  5. 5. The hydraulically driven flat gate valve of claim 1, wherein the bottom of the inner wall of the shell (11) is fixedly connected with a convex block (12), the convex block (12) is in a trapezoid shape, the inclined direction of the side edge of the convex block (12) is parallel to the inclined direction of the fixed ring (68), a round hole (13) is formed in the outer side of the shell (11), the axial direction of the round hole (13) and the axis of the fixed pipe (21) are located on the same horizontal line, the fixed pipe (21) is communicated with the inside of the shell (11) through the round hole (13), and the inner side of the round hole (13) is provided with a bevel edge (14).
  6. 6. The hydraulically driven flat gate valve of claim 1, wherein an intermediate plate (56) is fixedly connected to the outer side of the circular plate (57), two ends of the intermediate plate (56) are in contact with the two circular plates (57), a snake-shaped plate (55) is fixedly connected to the outer sides of the circular plates (57), the two circular plates (57) are connected through the snake-shaped plate (55), a guide groove (58) is formed in the outer side of the intermediate plate (56), the snake-shaped plate (55) is located in the guide groove (58), an elastic ring (54) is fixedly connected to the outer side of the connecting cylinder (53), and the elastic ring (54) is located at the interval between the connecting cylinder (53) and the fixed frame (51).

Description

Hydraulic drive type flat gate valve Technical Field The invention relates to the technical field of flat gate valves, in particular to a hydraulic drive type flat gate valve. Background The gate valve is one of the most commonly used shut-off valves, is mainly used for switching on or shutting off media in a pipeline and is used for regulating the flow of the media, the gate valve is widely used in a plurality of fields due to the fact that the using pressure, the temperature and the drift span range of the gate valve are large, the main components of the gate valve comprise a valve seat, a valve rod and a valve plate, a sealing ring is arranged on the inner side of the valve seat and is in contact with the end face of the valve plate in a sealing mode, so that the flow of fluid can be blocked, the flat gate valve is of a common valve type, the valve plate of the flat gate valve is of a flat plate shape, the function of cutting off or conducting the fluid is achieved through mutual lamination with the sealing face of the valve seat, and the movement of the valve plate is relatively stable in the opening and closing processes of the valve due to the flat plate structure of the valve plate. When the existing flat gate valve is used, because some impurities often exist in a medium, when the impurities enter the valve, the inside of the valve is easy to be blocked, the structure inside the valve is also easy to be damaged, and the using effect and the service life of the valve are affected. Disclosure of Invention The hydraulic driving flat gate valve comprises a valve body, wherein the top of the valve body is fixedly connected with a valve cover, the top of the valve cover is fixedly connected with a protection cylinder, and the top of the protection cylinder is fixedly connected with a hydraulic cylinder; The connecting component is fixedly connected with the output end of the hydraulic cylinder, the connecting component is positioned in the protective cylinder, one end of the connecting component, which is far away from the hydraulic cylinder, is fixedly connected with a valve rod, the valve rod penetrates through the valve cover and extends to the inside of the valve body, and the valve rod is positioned in the center of the protective cylinder; the valve plate is fixedly arranged at one end of the valve rod, which is far away from the connecting assembly, and is positioned in the valve body; The two pipe fittings are symmetrically arranged by taking the valve body as a center; Wherein the pipe fitting comprises a fixed pipe, the fixed pipe is fixedly connected with the outer side of the valve body, an inner cavity is formed in the fixed pipe, the inner cavity is in conical shape, the diameter of the inner cavity gradually decreases towards one end close to the valve body, the fluid flow velocity in the inner cavity is slowly and quickly reduced due to the gradual decrease of the diameter of the inner cavity, when the fluid flow velocity in the fixed pipe is relatively higher, the impurity precipitation and accumulation in the fluid can be reduced, the cleanness of a pipeline is kept, the possibility of blockage is reduced, meanwhile, the conical shape ensures that the fluid in the inner cavity has a gradual contraction process, the flow direction and the velocity distribution of a medium are adjusted to a certain extent, the fluid can approach to the valve plate in a more stable state, the direct impact and the turbulent phenomenon of the fluid to the valve plate can be effectively reduced, the scouring abrasion to the sealing surface of the valve plate is reduced, the service life of the valve plate and the whole valve is prolonged, the sealing performance and the reliability of the valve are improved, the inner wall of the inner cavity far away from one end of the valve body is fixedly connected with a filter screen, the middle part of the filter screen is rotationally connected with a rotating shaft, the rotating shaft penetrates through the filter screen, the outer side of the rotating shaft close to the valve body is fixedly connected with impellers, one end of the rotating shaft far away from the impellers is fixedly connected with cleaning plates, the number of the cleaning plates is multiple, the cleaning plates are uniformly distributed by taking the rotating shaft as a center, the outer side of the rotating shaft is fixedly connected with a fixing rod, one end of the fixing rod far away from the rotating shaft is fixedly connected with a scraping plate, the fixing tube is externally connected with a water source, water enters the inside of the fixing tube, the water passes through the filter screen, impurities in the water are filtered, the parts inside the device are prevented from being worn, scratched or blocked, the sealing performance and the normal opening and closing functions of the valve are ensured, the service life of the valve is prolonged, the impellers are driven to rotate under t