CN113757403A - Coarse medium fluid safety gate valve - Google Patents

Coarse medium fluid safety gate valve Download PDF

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Publication number
CN113757403A
CN113757403A CN202111066121.2A CN202111066121A CN113757403A CN 113757403 A CN113757403 A CN 113757403A CN 202111066121 A CN202111066121 A CN 202111066121A CN 113757403 A CN113757403 A CN 113757403A
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CN
China
Prior art keywords
valve body
torsion
screw
push rod
water
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Pending
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CN202111066121.2A
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Chinese (zh)
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不公告发明人
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Individual
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Individual
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Priority to CN202111066121.2A priority Critical patent/CN113757403A/en
Publication of CN113757403A publication Critical patent/CN113757403A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/0209—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor the valve having a particular passage, e.g. provided with a filter, throttle or safety device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/0254—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor being operated by particular means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
    • F16K3/18—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
    • F16K3/18—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
    • F16K3/182—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members by means of toggle links
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
    • F16K31/508—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating element being rotatable, non-rising, and driving a non-rotatable axially-sliding element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
    • F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Details Of Valves (AREA)

Abstract

The invention belongs to the field of a coarse medium fluid safety gate valve, and particularly relates to a coarse medium fluid safety gate valve which comprises a valve body, a circumferential fixing block arranged in the valve body, a water blocking device arranged in the circumferential fixing block, an anti-torsion device arranged on one side of the water blocking device, a waterproof hammer device arranged on one side of the water blocking device, and a coarse medium removing device arranged on the upper part of the waterproof hammer device; the valve is characterized in that a housing is fixed on the upper part of the valve body through bolts. The device can prevent water hammer and is not easy to wear in the using process, and the transportation of the coarse medium fluid can be efficiently completed.

Description

Coarse medium fluid safety gate valve
Technical Field
The invention belongs to the field of coarse medium fluid safety gate valves, and particularly relates to a coarse medium fluid safety gate valve.
Background
The gate valve is the most important valve at present, and is widely used for the circulation and the stopping of media such as liquid, gas, dust and the like.
Generally, the gate valve includes the valve body, and the valve body lower part has feed inlet and discharge gate, and the left end of feed inlet and the right-hand member of discharge gate all have sealed face, and the movive seal complex is equipped with the main valve plate that can reciprocate and can not rotate between two sealed faces. Meanwhile, the upper part of the valve plate is connected with a valve rod, and the upper part of the valve rod is connected with a handle through a screw rod and nut mechanism.
The water hammer phenomenon can appear when closing valve in a lot of current gate valves, because the thrust of medium makes the valve of closing difficult and leads to valve rod and nut mechanism serious wear simultaneously when closing the valve. The tightness is not effectively guaranteed when the sealing device faces thick media. Therefore, a high-tightness coarse medium fluid safety gate valve which can prevent water hammer and is not easy to wear is urgently needed.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a coarse medium fluid safety gate valve which can avoid abrasion, enable the valve to run smoothly, prevent water hammer and has high sealing performance.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a thick medium fluid safety gate valve, includes the valve body, sets up circumference fixed block in the valve body, set up and be in device, the setting that blocks water in the circumference fixed block are in the antitorque device of device one side that blocks water, set up and be in waterproof hammer device of device one side that blocks water, set up and be in the thick medium clearing device on waterproof hammer device upper portion, valve body upper portion bolt fastening has the housing.
Preferably, the circumferential fixing block and the water blocking device are slidably sleeved, the torsion resistant device is in rolling contact with the water blocking device, and the torsion resistant device helps the water blocking device to offset torsion caused by water flow.
Preferably, circumference fixed block sliding sleeve is equipped with the screw rod, the screw rod bottom has set firmly the brake sleeve, the screw rod is located the circumference fixed block is kept away from brake sleeve one side sliding sleeve is equipped with the axle sleeve, the screw rod is located the upside threaded sleeve is kept away from to the axle sleeve is equipped with the nut, the nut outside has the straight-tooth, screw rod one side is located the valve body top and has set firmly the motor frame, the motor frame has set firmly the motor, motor output end has set firmly the pinion, the pinion with nut meshing transmission.
Preferably, the top of the screw rod is fixedly provided with an electromagnetic sliding groove, the electromagnetic sliding groove is provided with an electromagnetic block in a sliding manner, the electromagnetic block is fixedly provided with a push rod facing the ground side, the sliding sleeve is arranged inside the screw rod and penetrates into the brake sleeve, the push rod is positioned on the side face inside the brake sleeve and is provided with a plurality of side link rods in a rotating manner, one end of each side link rod is far away from the screw rod and is connected with a flashboard in a rotating manner, the flashboard is connected with the brake sleeve in a sliding manner, the bottom of the screw rod is fixedly provided with a push rod head, and the push rod head is connected with the brake sleeve through a push rod spring.
Preferably, the torsion-resistant device comprises a channel arranged in the valve body, a ball is arranged in the channel in a sliding manner, the ball is connected with the side wall of the channel through a ball spring, the channel is communicated to the screw rod, a torsion piston is arranged at the joint of the channel and the screw rod in a sliding manner, a torsion push rod is fixedly arranged on one side of the torsion piston close to the screw rod, a stop ring is arranged on the torsion push rod in a sliding manner, the stop ring is fixedly arranged on the side wall of the channel, the torsion piston is connected with the stop ring through a torsion spring, and a torsion roller is rotatably arranged at one end of the push rod close to the screw rod.
Preferably, the water hammer preventing device comprises a water hammer piston, the water hammer piston is slidably arranged on one side of the screw rod and is located in the valve body, the water hammer piston is connected with the valve body through a water hammer spring, a pull rod is fixedly arranged at the top of the water hammer piston, the pull rod is slidably connected with the valve body and penetrates through the valve body to the outer side of the top of the valve body, and one end of the water hammer piston is fixedly provided with a pull rod head.
Preferably, the coarse medium removing device comprises a liquid storage tank, the liquid storage tank is fixedly arranged on the outer side of the top of the valve body, coarse medium filter liquor is stored in the liquid storage tank, a liquid pressing plate is slidably arranged inside the liquid storage tank, a bent pull rod is fixedly arranged on one side, away from the valve body, of the liquid pressing plate, the bent pull rod is slidably connected with the top of the liquid storage tank and penetrates through the liquid storage tank to the outside, a liquid pressing groove is formed in the bottom of the liquid storage tank in the valve body, an annular liquid groove is formed in the bottom of the liquid pressing groove, cleaning balls are arranged on the annular liquid groove in the direction facing the flashboard, and the cleaning balls are connected with the valve body through a hydraulic spring 409.
Advantageous effects
The invention provides a coarse medium fluid safety gate valve through improvement, compared with the prior art, the coarse medium fluid safety gate valve has the following improvements and advantages:
1. through setting up anti torsion device, difficult wearing and tearing and can smoothly drive the operation with the motor when making the valve switch.
2. Through setting up the water hammer prevention device, make valve and pipeline effectively avoid the harm effect that the water hammer produced, improved valve security by a wide margin.
3. Through setting up thick medium clearing device, break away the thick medium in the liquid at valve closing surface department, effectively increased the valve leakproofness.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 at D;
FIG. 5 is an enlarged view of a portion E of FIG. 3;
FIG. 6 is an enlarged view of a portion of FIG. 3 at F;
FIG. 7 is an enlarged view of a portion of FIG. 3 at G;
FIG. 8 is a cross-sectional view taken at B-B of FIG. 7;
fig. 9 is a cross-sectional view taken at C-C in fig. 6.
In the figure: the hydraulic control valve comprises a valve body 101, a circumferential fixing block 210, a housing 102, a screw 204, a brake sleeve 215, a shaft sleeve 209, a nut 207, a motor frame 205, a motor 206, a pinion 208, an electromagnetic chute 201, an electromagnetic block 202, a push rod 203, a link rod 211, a gate 212, a push rod head 213, a push rod spring 214, a channel 303, balls 301, a ball spring 302, a torsion piston 304, a torsion push rod 305, a stop ring 307, a torsion spring 306, a torsion roller 308, a water hammer piston 401, a water hammer spring 403, a connecting rod 402, a pull rod head 404, a liquid storage tank 405, a liquid pressing plate 406, a bent pull rod 407, a liquid pressing groove 411, an annular liquid groove 410, a cleaning ball 408 and a hydraulic spring 409.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
With reference to fig. 1 to 9, a coarse medium fluid safety gate valve includes a valve body 101, a circumferential fixing block 210 disposed in the valve body 101, a water blocking device disposed in the circumferential fixing block 210, an anti-torsion device disposed on one side of the water blocking device, a water hammer preventing device disposed on one side of the water blocking device, and a coarse medium removing device disposed on an upper portion of the water hammer preventing device, wherein a housing 102 is bolted to an upper portion of the valve body 101.
Further, the circumferential fixing block 210 is slidably sleeved with the water blocking device, and the torsion resistant device is in rolling contact with the water blocking device and helps the water blocking device to offset the torsion caused by the water flow.
Furthermore, a screw 204 is slidably sleeved on the circumferential fixing block 210, a brake sleeve 215 is fixedly arranged at the bottom of the screw 204, a shaft sleeve 209 is slidably sleeved on one side, away from the brake sleeve 215, of the screw 204, a nut 207 is slidably sleeved on one side, away from the upper side, of the shaft sleeve 209, the screw 204 is positioned on the shaft sleeve 209, a straight tooth is arranged on the outer side of the nut 207, a motor frame 205 is fixedly arranged on one side, located at the top of the valve body 101, of the screw 204, a motor 206 is fixedly arranged on the motor frame 205, a pinion 208 is fixedly arranged at the output end of the motor 206, and the pinion 208 and the nut 207 are in meshing transmission.
Furthermore, an electromagnetic chute 201 is fixedly arranged at the top of the screw 204, an electromagnetic block 202 is slidably arranged on the electromagnetic chute 201, a push rod 203 is fixedly arranged on the electromagnetic block 202 facing the ground side, the sliding sleeve is arranged inside the screw 204 and penetrates into the brake sleeve 215, the push rod 203 is positioned on the inner side of the brake sleeve 215 and is rotatably provided with a plurality of connecting rods 211, one end, away from the screw 204, of each connecting rod 211 is rotatably connected with a gate plate 212, the gate plate 212 is slidably connected with the brake sleeve 215, a push rod head 213 is fixedly arranged at the bottom of the screw 204, and the push rod head 213 is connected with the brake sleeve 215 through a push rod spring 214.
Further, the torsion-resistant device comprises a channel 303 arranged in the valve body 101, a ball 301 is slidably arranged in the channel 303, the ball 301 is connected with the side wall of the channel 303 through a ball spring 302, the channel 303 is communicated with the screw 204, a torsion piston 304 is slidably arranged at the connection of the channel 303 and the screw 204, a torsion push rod 305 is fixedly arranged on one side of the torsion piston 304 close to the screw 204, the torsion push rod 305 is slidably sleeved on a stop ring 307, the stop ring 307 is fixedly arranged on the side wall of the channel 303, the torsion piston 304 is connected with the stop ring 307 through a torsion spring 306, and a torsion roller 308 is rotatably arranged at one end of the push rod 305 close to the screw 204.
Further, the water hammer prevention device comprises a water hammer piston 401, the water hammer piston 401 is arranged in the valve body 101 in one side of the screw 204 in a sliding mode, the water hammer piston 401 is connected with the valve body 101 through a water hammer spring 403, the top of the water hammer piston 401 is fixedly provided with a pull rod 402, the pull rod 402 is connected with the valve body 101 in a sliding mode and penetrates through the outer side of the top of the valve body 101, and one end, away from the water hammer piston 401, of the pull rod 402 is fixedly provided with a pull rod head 404.
Further, thick medium clearing device includes liquid reserve tank 405, liquid reserve tank 405 sets firmly in the valve body 101 top outside, thick medium filtering liquid is stored to liquid reserve tank 405, the inside slip of liquid reserve tank 405 is provided with pressure liquid board 406, pressure liquid board 406 keeps away from valve body 101 one side and has set firmly bent pull rod 407, bent pull rod 407 and liquid reserve tank 405 top sliding connection and run through to the outside, liquid reserve tank 405 bottom has pressure cistern 411 in valve body 101, it has annular cistern 410 to press liquid cistern 411 bottom to open, annular cistern 410 is equipped with clearance ball 408 towards flashboard 212 direction, be connected through hydraulic spring 409 between clearance ball 408 and the valve body 101.
Principle of operation
When the coarse medium fluid safety gate valve starts to start from a static state, the motor 206 starts to start to drive the nut 207 to enable the screw 204 to descend, the screw 204 drives the gate plate 212 to move downwards, water flows into the valve body 101 from the cleaning ball 408 side, the water flow is blocked by the gate plate 212, the screw 204 is subjected to torsion generated by the gate plate 212, and resistance is increased by rotation of the nut 207 and the screw 204.
At this time, the water pressure at the ball 301 increases, and the water flows to the torsion piston 304 through the channel 303, and the torsion roller 308 contacts the screw and applies a reverse thrust of the torsion generated by the shutter 212, so that the screw 204 can move smoothly.
When the water flow is to be completely blocked by the gate plate 212, a water hammer phenomenon is generated, the pressure of the water flow inlet end is increased sharply, and the water hammer piston 401 is pushed by the water pressure to move upwards, so that the water pressure in the water pipe and the valve body 101 is reduced, and the water pipe is protected. At the moment, the electromagnetic block 202 is started, the push rod 203 moves downwards to push the gate plate 212 to two sides, the water hammer piston 401 pushes the pull rod head 404 to rise and then hook the bent pull rod 407, after the water hammer disappears, the pull rod head 404 drives the bent pull rod 407 to move downwards under the action of the water hammer spring 403, the liquid pressing plate 406 presses the liquid in the liquid storage tank 405 to the cleaning ball 408 and flows to a position between the combining surfaces of the gate plate 212 and the valve body 101 to be closed, coarse media of the combining surfaces are washed away to form a liquid barrier, and the sealing performance of the gate plate 212 and the valve body 101 is guaranteed.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (7)

1. A coarse medium fluid safety gate valve comprises a valve body (101), and is characterized in that a circumferential fixing block (210) is arranged in the valve body (101), a water blocking device is arranged in the circumferential fixing block (210), an anti-torsion device is arranged on one side of the water blocking device, a waterproof hammer device is arranged on one side of the water blocking device, and a coarse medium removing device is arranged on the upper portion of the waterproof hammer device; and a cover (102) is fixed on the upper part of the valve body (101) by bolts.
2. The coarse media fluid safety gate valve of claim 1, wherein the circumferential fixing block (210) is slidably sleeved with the water blocking device, and the torsion resistant device is in rolling contact with the water blocking device, and helps the water blocking device to counteract torsion caused by water flow.
3. The thick medium fluid safety gate valve of claim 1, characterized in that, the circumference fixed block (210) slip cover is equipped with screw rod (204), brake sleeve (215) has been set firmly in screw rod (204) bottom, screw rod (204) are located circumference fixed block (210) is kept away from brake sleeve (215) one side slip cover is equipped with axle sleeve (209), screw rod (204) are located upside thread cover is kept away from in axle sleeve (209) is equipped with nut (207), the nut (207) outside has the straight-tooth, screw rod (204) one side is located valve body (101) top and has set firmly motor frame (205), motor frame (205) have set firmly motor (206), motor (206) output has set firmly pinion (208), pinion (208) with nut (207) meshing transmission.
4. The coarse medium fluid safety gate valve according to claim 3, characterized in that an electromagnetic chute (201) is fixed on the top of the screw (204), the electromagnetic chute (201) is provided with an electromagnetic block (202) in a sliding manner, a push rod (203) is fixedly arranged on the side, facing the ground, of the electromagnetic block (202), the sliding sleeve is arranged inside the screw rod (204) and penetrates into the brake sleeve (215), the push rod (203) is positioned at the inner side surface of the brake sleeve (215) and is rotatably provided with a plurality of side links (211), one end of the side link (211), which is far away from the screw (204), is rotatably connected with a gate plate (212), the gate plate (212) is connected with the gate sleeve (215) in a sliding way, the bottom of the screw rod (204) is fixedly provided with a push rod head (213), the push rod head (213) is connected with the brake sleeve (215) through a push rod spring (214).
5. The coarse medium fluid safety gate valve according to claim 4, wherein the torsion-resistant device comprises a channel (303) disposed in the valve body (101), the channel (303) is slidably disposed with a ball (301), the ball (301) is connected with a side wall of the channel (303) through a ball spring (302), the channel (303) is connected to the screw (204), a torsion piston (304) is slidably disposed at a connection of the channel (303) and the screw (204), a torsion push rod (305) is fixedly disposed on one side of the torsion piston (304) close to the screw (204), the torsion push rod (305) is slidably sleeved on a blocking ring (307), the blocking ring (307) is fixedly disposed on a side wall of the channel (303), and the torsion piston (304) is connected with the blocking ring (307) through a torsion spring (306), one end of the push rod (305) close to the screw rod (204) is rotatably provided with a torsion roller (308).
6. The coarse medium fluid safety gate valve according to claim 5, wherein the water hammer preventing device comprises a water hammer piston (401), the water hammer piston (401) is slidably disposed on one side of the screw (204) and located in the valve body (101), the water hammer piston (401) is connected with the valve body (101) through a water hammer spring (403), a pull rod (402) is fixedly disposed at the top of the water hammer piston (401), the pull rod (402) is slidably connected with the valve body (101) and penetrates through the outer side of the top of the valve body (101), and a pull rod head (404) is fixedly disposed at one end, away from the water hammer piston (401), of the pull rod (402).
7. Coarse media fluid safety gate valve according to claim 6, characterized in that the coarse media removal means comprises a tank (405), the liquid storage tank (405) is fixedly arranged on the outer side of the top of the valve body (101), the liquid storage tank (405) stores coarse medium filtrate, a hydraulic plate (406) is arranged in the liquid storage tank (405) in a sliding manner, a bent pull rod (407) is fixedly arranged on one side of the hydraulic plate (406) far away from the valve body (101), the bent pull rod (407) is connected with the top of the liquid storage tank (405) in a sliding way and penetrates to the outside, a liquid pressure tank (411) is arranged in the valve body (101) at the bottom of the liquid storage tank (405), an annular liquid groove (410) is formed in the bottom of the liquid pressing groove (411), cleaning balls (408) are arranged on the annular liquid groove (410) in the direction facing the flashboard (212), the cleaning ball (408) is connected with the valve body (101) through a hydraulic spring (409).
CN202111066121.2A 2021-09-13 2021-09-13 Coarse medium fluid safety gate valve Pending CN113757403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111066121.2A CN113757403A (en) 2021-09-13 2021-09-13 Coarse medium fluid safety gate valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111066121.2A CN113757403A (en) 2021-09-13 2021-09-13 Coarse medium fluid safety gate valve

Publications (1)

Publication Number Publication Date
CN113757403A true CN113757403A (en) 2021-12-07

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ID=78795051

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111066121.2A Pending CN113757403A (en) 2021-09-13 2021-09-13 Coarse medium fluid safety gate valve

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CN (1) CN113757403A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116576263A (en) * 2023-07-13 2023-08-11 福建力盾实业有限公司 Double-flat-plate sealing gate valve capable of avoiding blockage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116576263A (en) * 2023-07-13 2023-08-11 福建力盾实业有限公司 Double-flat-plate sealing gate valve capable of avoiding blockage
CN116576263B (en) * 2023-07-13 2023-11-03 福建力盾实业有限公司 Double-flat-plate sealing gate valve capable of avoiding blockage

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