CN111963763A - Pipeline anti-impact valve and using method thereof - Google Patents
Pipeline anti-impact valve and using method thereof Download PDFInfo
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- CN111963763A CN111963763A CN202010817132.9A CN202010817132A CN111963763A CN 111963763 A CN111963763 A CN 111963763A CN 202010817132 A CN202010817132 A CN 202010817132A CN 111963763 A CN111963763 A CN 111963763A
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- valve
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- main shaft
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/46—Mechanical actuating means for remote operation
- F16K31/465—Mechanical actuating means for remote operation by flexible transmission means, e.g. cable, chain, bowden wire
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to a pipeline anti-impact valve and a using method thereof. The valve body extends in the horizontal direction, and a passage is formed inside the valve body. The valve core is arranged in the channel, and the pulling rod is arranged on the valve core and penetrates through the valve body so as to drive the valve core to rotate in the valve body when stressed to rotate, and further open or close the valve. The buffer mechanism comprises a main shaft, a plurality of water baffles and a water baffle return device. The main shaft extends along the horizontal direction and is coaxial with the valve body and fixedly arranged in the valve body, the water baffles are perpendicular to the main shaft and are uniformly distributed along the circumferential direction of the main shaft, the gears are arranged on the inner sides of the water baffles in a friction mode, and the water baffles deflect under the rotating friction effect of the gears when moving towards the right side under the impact force of a water hammer. According to the pipeline anti-impact valve and the using method thereof, three-level buffering pressure relief is performed on the inertia water flow based on the water hammer phenomenon, and the buffering effect is improved.
Description
Technical Field
The invention relates to the field of pipeline impact prevention, in particular to a pipeline impact prevention valve and a using method thereof.
Background
The water hammer is called a water hammer because the water hammer generates water flow shock waves like a hammer is knocked when a power failure suddenly occurs or when a valve is closed too fast due to the inertia of pressure water flow. The force generated by the water flow shock wave back and forth is sometimes very large, thus damaging the valve and the water pump.
When the electric water pump is started at full voltage, the speed can be accelerated to the rated speed from a static state in less than 1s, and the flow in the pipeline is increased from zero to the rated flow. Because of the momentum and degree of compressibility of the fluid, a sharp change in flow will cause either too high or too low a pressure impact within the pipe and the appearance of "cavitation". The impact of the pressure will force the pipe wall to make noise as if a hammer were hitting the pipe, known as the "water hammer effect". The water hammer effect is extremely destructive: too high a pressure will cause the pipe to collapse, whereas too low a pressure will cause the pipe to collapse and damage the valves and fixtures.
In order to eliminate the serious consequences of the water hammer effect, a series of buffering measures and devices are required in the pipeline.
Disclosure of Invention
The invention provides a pipeline anti-impact valve and a using method thereof, which aim to solve the problem that the existing pipeline is easy to break under the water hammer effect.
The invention discloses a pipeline anti-impact valve and a using method thereof, and adopts the following technical scheme:
a pipeline anti-impact valve comprises a valve body, a valve core, a trip rod and a buffer mechanism; the valve body extends along the horizontal direction, and a channel is formed inside the valve body; the valve core is arranged in the channel; the trip rod is arranged on the valve core and penetrates through the valve body so as to drive the valve core to rotate in the valve body when the trip rod is stressed to rotate, and further open or close the valve; the buffer mechanism comprises a main shaft, a plurality of water baffles and a water baffle return device; the main shaft extends along the horizontal direction, is coaxial with the valve body and is fixedly arranged in the valve body, a plurality of supporting slideways extending along the axial direction of the main shaft are arranged in the main shaft, a plurality of strip-shaped through holes are arranged on the side wall of the main shaft, each strip-shaped through hole is positioned on the outer side of one supporting slideway, and a guiding tooth row is arranged on one side wall of each strip-shaped through hole; the water baffles are perpendicular to the main shaft and are uniformly distributed along the circumferential direction of the main shaft, the rotating shaft perpendicular to the main shaft is arranged on the inner side of each water baffle and is inserted into the long through hole, the gear is arranged on the outer side of the rotating shaft in a friction connection mode and is meshed with the guide tooth row, and the water baffles deflect under the rotating friction action of the gear when moving to the right side under the impact force of a water hammer; the water baffle return device is configured to push the water baffle to move to the left side when the valve core is closed.
Furthermore, the water baffle plate return device comprises a supporting part, a top pressure plate, a transmission mechanism and a top pressure plate return device; the supporting part is arranged in the valve body and fixedly connected to the right end of the main shaft; the top pressure plate is slidably arranged on the outer side of the main shaft and is positioned on the right side of the waterproof plate; the transmission mechanism is connected with the valve core and the top pressure plate, so that the valve core drives the top pressure plate to move rightwards through the transmission mechanism when the valve is opened; the top pressure plate return device is arranged between the top pressure plate and the supporting part to enable the top pressure plate to move leftwards when the valve core closes the valve, and further enable the top pressure plate to push the water baffles to move leftwards when the top pressure plate moves leftwards.
Further, the transmission mechanism comprises a traction rod and a flexible traction rope; the plurality of traction rods extend along the horizontal direction, the left ends of the traction rods are fixedly connected with the right ends of the top pressure plates, and the right ends are provided with rotating connecting rings; the left end of the flexible traction rope is connected with the rotary connecting ring, and the right end of the flexible traction rope is connected with the valve core; the top pressure plate return device is a spiral compression spring.
Further, the supporting part comprises a rotating groove, a rotating supporting slide block and a supporting arm; the rotation groove is arranged along the circumferential direction of the inner side wall of the valve body, the rotary supporting sliding block is slidably arranged in the rotation groove along the circumferential direction of the valve body, the supporting arm is arranged along the axis direction perpendicular to the valve body, the two ends of the supporting arm are fixedly connected to the rotary supporting sliding block, and the middle of the supporting arm is fixedly connected to the right end of the main shaft.
Furthermore, buffer gear still includes the guide and supports the shell fragment, and the guide supports the shell fragment and sets up in supporting the slide, supports the left end and the right-hand member that the slide runs through the main shaft, and the right-hand member of guide support shell fragment contacts with the bottom surface that supports the slide, and the left end is rotated and is installed in the inner of pivot, and the left end that guides along the radial direction of valve body supports the shell fragment and is located the right-hand member outside.
Further, support the slide and include the pressure boost hole and the slide portion of intaking that shrink gradually from a left side to the right side, the pressure boost hole that intakes sets up in the left side of slide portion, and the guide supports the shell fragment and sets up in the left end of slide portion.
Furthermore, the length of at least one strip through hole is different from that of each of the rest strip through holes, and the length of the guide tooth row is equal to that of the strip through hole.
Furthermore, the outer side of the guide tooth row is provided with a limiting convex edge, and the gear is positioned on the inner side of the limiting convex edge.
Furthermore, a friction sleeve is arranged between the gear and the rotating shaft, the inner side of the friction sleeve is in friction contact with the outer side of the rotating shaft, and the outer side of the friction sleeve is in friction contact with the inner side of the gear.
Furthermore, the application method of the pipeline anti-impact valve is characterized in that water flow moves from the left side to the right side of the valve body, the valve is opened by rotating the pulling rod, the flexible pulling rope is tensioned, the water baffle deflects and moves rightwards under the rotating friction action of the gear, and the water flow passes through a gap formed after the water baffle deflects and moves. The pulling rod is rotated reversely to close the valve, the jacking plate return device pushes the jacking plate to move leftwards, and the jacking plate pushes the water baffle to move leftwards, so that the water baffle is returned; when the water hammer impacts the water baffle to the right, the water baffle deflects under the rotating friction action of the gears and moves to the right, and the deflected water baffle provides torque for rotating the whole buffer mechanism 4 under the impact of water flow.
The invention has the beneficial effects that: according to the pipeline anti-impact valve and the using method thereof, three-level buffering pressure relief is performed on the inertia water flow based on the water hammer phenomenon, and the buffering effect is improved.
The guide support elastic sheet is used for providing a support torque for the water baffle, the water baffle is prevented from directly enabling the guide dentition to bear the torque applied under the action of the water hammer, the abrasion of the guide dentition is reduced, the service life of the guide dentition is prolonged, and meanwhile, the meshing of the gear on the guide dentition is smoother.
The inner end of the guide support elastic sheet is separated from the bottom surface of the support slide under the lifting action of high-pressure water flow, so that the abrasion caused by the friction of the lower end of the guide support elastic sheet and the bottom surface of the support slide is avoided, the resistance of the lower end of the guide support elastic sheet moving to the right side is reduced, the torque borne by the guide dentition is reduced, and the rotating shaft is prevented from being blocked.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a pipeline anti-impact valve and a method for using the same according to the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of a pipeline anti-impact valve and a method for using the same according to the present invention;
FIG. 3 is a cross-sectional view of an embodiment of a pipeline impact valve and method of using the same of the present invention;
FIG. 4 is a schematic structural diagram of a buffering mechanism of a pipeline anti-impact valve and a method for using the same according to the present invention;
FIG. 5 is a cross-sectional view of a damper mechanism of a pipeline anti-shock valve and method of use thereof in accordance with the present invention;
FIG. 6 is an enlarged view of a portion of I in FIG. 5;
in the figure: 1. a valve body; 2. a valve core; 3. pulling a rod; 4. a buffer mechanism; 41. a main shaft; 42. a water baffle; 43. a top pressing plate; 44. a helical compression spring; 45. a support arm; 46. a traction rod; 47. a water inlet pressurizing hole; 48. a guide tooth row; 49. a limiting convex edge; 50. a support slide; 51. a rotating shaft; 52. a friction sleeve; 53. a gear; 54. the guiding and supporting elastic sheet; 55. a rotary support slider; 56. rotating the connecting ring; 57. a rotating groove; 5. a flexible pulling rope.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the pipeline anti-impact valve and the use method thereof of the invention, as shown in figures 1 to 6,
a pipeline anti-impact valve comprises a valve body 1, a valve core 2, a trip rod 3 and a buffer mechanism 4. The valve body 1 extends in the horizontal direction and is cylindrical, and a passage is formed inside the valve body 1. The valve core 2 is arranged in the channel, and the outer side of the valve core 2 is attached to the inner side wall of the valve body 1. The turning rod 3 is arranged on the valve core 2 and penetrates through the valve body 1, and the valve core 2 can rotate in the valve body 1 by rotating the turning rod 3. The buffer mechanism 4 is arranged in the channel of the valve body 1, and the buffer mechanism 4 comprises a main shaft 41, 4 water baffles 42 and a water baffle return device. The main shaft 41 extends along the horizontal direction and is coaxial with the valve body 1, a plurality of supporting slideways 50 extending along the axial direction of the main shaft 41 are arranged in the main shaft 41, a plurality of strip-shaped through holes are arranged on the side wall of the main shaft 41, each strip-shaped through hole is positioned on the outer side of one supporting slideway 50, and a guiding tooth row 48 is arranged on one side wall of each strip-shaped through hole. The 4 water baffles 42 are perpendicular to the main shaft 41 and are uniformly distributed along the circumferential direction of the main shaft 41, the outer ends of the 4 water baffles 42 are attached to the inner side wall of the valve body 1, a rotating shaft 51 perpendicular to the main shaft 41 is arranged on the inner side of the water baffles 42, the rotating shaft 51 is inserted into the long through hole, a gear 53 is installed on the outer side of the rotating shaft 51 in a friction mode, the gear 53 is meshed with the guide tooth row 48, the water baffles 42 move towards the right side and deflect under the rotating friction effect of the gear 53, and the water baffle returning device is configured to push the water baffles 42 to move towards the left side when the valve core 2 is.
In this embodiment, the water guard returning device includes a supporting portion, a pressing plate 43, a transmission mechanism and a pressing plate 43 returning device; the supporting part is arranged in the valve body 1 and fixedly connected to the right end of the main shaft 41, and the top pressure plate 43 is slidably arranged on the outer side of the main shaft 41 and positioned on the right side of the waterproof plate; the transmission mechanism is connected with the valve core 2 and the top pressure plate 43, so that the top pressure plate 43 is driven to move rightwards by the transmission mechanism when the valve core 2 opens the valve; the top pressure plate 43 return device is arranged between the top pressure plate 43 and the supporting portion to urge the top pressure plate 43 to move leftward when the valve core 2 closes the valve, so that the top pressure plate 43 urges the water baffles 42 to move leftward when moving leftward, thereby stopping the water hammer flow.
In this embodiment, the transmission mechanism includes a pull rod 46 and a flexible pull cord; the plurality of traction rods 46 extend along the horizontal direction, the left end of each traction rod 46 is fixedly connected with the right end of the top pressure plate 43, the right end of each traction rod is provided with a rotating connecting ring 56, and the rotating connecting rings 56 can rotate at the right ends of the traction rods; the left end of the flexible traction rope is connected with the rotary connecting ring 56, and the right end of the flexible traction rope is connected with the valve core 2; the top plate return means is a helical compression spring 44.
In the present embodiment, the support portion includes a rotation slot 57, a rotation support slider 55, and a support arm 45. The rotation groove 57 is arranged along the circumferential direction of the inner side wall of the valve body 1, the rotary support slider 55 is slidably mounted in the rotation groove 57 along the circumferential direction of the valve body 1, the support arm 45 is arranged along the axial direction perpendicular to the valve body 1, the two ends of the support arm 45 are fixedly connected to the rotary support slider 55, and the middle of the support arm 45 is fixedly connected to the right end of the main shaft 41. When the water baffles 42 are impacted by water flow, the water baffles 42 move to the right side against the pushing force of the helical compression springs 44 and deflect under the rotating friction action of the gears 53, the deflected water baffles 42 provide torque for rotating the whole buffer mechanism 4 under the impact of the water flow so as to consume the kinetic energy of the water flow to the rotation of the buffer mechanism 4, and at the moment, the rotating support sliding block 55 rotates in the rotating groove 57 matched with the rotating support sliding block, so that the buffer stroke required by the water baffles 42 is reduced.
In this embodiment, the buffering mechanism 4 further includes a guiding support elastic sheet 54, the guiding support elastic sheet 54 is disposed in the support slide 50, the support slide 50 penetrates through the left end and the right end of the main shaft 41, the right end of the guiding support elastic sheet 54 contacts with the bottom surface of the support slide 50, the left end is rotatably mounted at the inner end of the rotating shaft 51, and the left end of the guiding support elastic sheet 54 is located at the outer side of the right end along the radial direction of the valve body 1, so that the torque borne by the guiding tooth row 48 is reduced, and the rotating shaft 51 is prevented from being jammed.
In this embodiment, the buffering mechanism 4 further includes a water inlet pressurizing hole 47 and a slide inlet pressurizing hole 47 which gradually contract from left to right, which are disposed on the left side of the slide portion, and the guiding supporting elastic sheet 54 is disposed at the left end of the slide portion. After the high-pressure water flow of the water hammer enters the water inlet pressurizing hole 47, because the water inlet pressurizing hole 47 is opened towards the left side and is gradually reduced, the high-pressure water flow of the water hammer is further pressurized, the pressurized water flow is forced to be discharged towards the right side from the position between the guide supporting elastic sheet 54 and the bottom surface of the supporting slide way 50, at the moment, the inner end of the guide supporting elastic sheet 54 is separated from the bottom surface of the supporting slide way 50 under the lifting action of the high-pressure water flow, the abrasion caused by the friction between the inner end of the guide supporting elastic sheet 54 and the bottom surface of the supporting slide way 50 is avoided, and the resistance.
In this embodiment, at least one of the elongated through holes has a different length from each of the other elongated through holes, and the length of the guide teeth 48 is equal to the length of the elongated through holes. When the water inlet effect of the water inlet pressurizing hole 47 with larger water flow speed is not ideal, the final staying positions of the water baffles 42 under the guidance of the guide row teeth are different, so that the adjacent water baffles 42 are staggered to form a channel for releasing the residual kinetic energy of the water hammer.
In this embodiment, the outer side of the guide tooth row 48 is provided with a limit convex edge 49, and the gear 53 is located on the inner side of the limit convex edge 49, so as to prevent the gear 53 from being pulled out, and limit the degree of freedom of the gear 53 in the vertical direction.
In the present embodiment, a friction sleeve 52 is provided between the gear 53 and the rotating shaft 51, the inner side of the friction sleeve 52 is in frictional contact with the outer side of the rotating shaft 51, and the outer side of the friction sleeve 52 is in frictional contact with the inner side of the gear 53. So that the gear 53 drives the friction sleeve 52 to rotate under the action of friction, and the friction sleeve 52 drives the water deflector 42 to deflect under the action of friction.
When the water hammer type water hammer is used, the valve is opened, the valve core 2 rotates forwards by 90 degrees, the flexible traction rope 5 is tensioned, and when water hammer water flow impacts a baffle plate formed by 4 water baffles 42, the 4 water baffles 42 move towards the right side and deflect and move rightwards under the rotating friction action of the gear 53, so that the adjacent water baffles 42 are staggered to form a channel for water flow to pass through.
When the valve is closed, the valve core 2 rotates in the reverse direction by 90 degrees, the flexible traction rope 5 is loosened, and at the moment, the water baffle plate 42 moves to the left side under the pushing action of the top pressure plate 43 and finally is positioned on the same plane to play a role in stopping water hammer flow. When the water hammer water flow impacts the baffle composed of the 4 water baffles 42, the 4 water baffles 42 overcome the pushing force of the spiral compression spring 44 to move towards the right side and deflect under the rotating friction action of the gear 53, the deflection angle of the water baffles 42 is opened to the maximum and kept along with the rotation of the gear 53 as the pushing plate is moved leftwards by the elastic force of the spiral compression spring 44, the deflected water baffles 42 provide the torque for rotating the whole buffer mechanism 4 like fan blades under the impact of the water flow so as to consume the kinetic energy of the water flow in the rotation of the buffer mechanism 4, at the moment, the rotating support sliding block 55 rotates in the rotating groove 57 matched with the rotating support sliding block, and the buffer stroke required by the water baffles 42 is reduced. When the water hammer is large enough, the water flow pushes the gear 53 to move to the rightmost guide tooth row 48, and the length of each guide tooth row 48 is different from that of the adjacent guide tooth row 48, so that the stroke of the water baffle 42 moving to the right side is different, and the adjacent water baffles 42 are staggered to form a channel for releasing the residual kinetic energy of the water hammer.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A pipeline protecting against shock valve which characterized in that: comprises a valve body, a valve core, a trip rod and a buffer mechanism; the valve body extends along the horizontal direction, and a channel is formed inside the valve body; the valve core is arranged in the channel; the trip rod is arranged on the valve core and penetrates through the valve body so as to drive the valve core to rotate in the valve body when the trip rod is stressed to rotate, and further open or close the valve; the buffer mechanism comprises a main shaft, a plurality of water baffles and a water baffle return device; the main shaft extends along the horizontal direction, is coaxial with the valve body and is fixedly arranged in the valve body, a plurality of supporting slideways extending along the axial direction of the main shaft are arranged in the main shaft, a plurality of strip-shaped through holes are arranged on the side wall of the main shaft, each strip-shaped through hole is positioned on the outer side of one supporting slideway, and a guiding tooth row is arranged on one side wall of each strip-shaped through hole; the water baffles are perpendicular to the main shaft and are uniformly distributed along the circumferential direction of the main shaft, the rotating shaft perpendicular to the main shaft is arranged on the inner side of each water baffle and is inserted into the long through hole, the gear is arranged on the outer side of the rotating shaft in a friction connection mode and is meshed with the guide tooth row, and the water baffles move rightwards under the impact force of a water hammer and deflect under the rotating friction action of the gear; the water baffle return device is configured to push the water baffle to move to the left side when the valve core is closed.
2. An impact valve for pipes as defined in claim 1, wherein: the water baffle return device comprises a supporting part, a top pressure plate, a transmission mechanism and a top pressure plate return device; the supporting part is arranged in the valve body and fixedly connected to the right end of the main shaft; the top pressure plate is slidably arranged on the outer side of the main shaft and is positioned on the right side of the waterproof plate; the transmission mechanism is connected with the valve core and the top pressure plate, so that the valve core drives the top pressure plate to move rightwards through the transmission mechanism when the valve is opened; the top pressure plate return device is arranged between the top pressure plate and the supporting part to enable the top pressure plate to move leftwards when the valve core closes the valve, and further enable the top pressure plate to push the water baffles to move leftwards when the top pressure plate moves leftwards.
3. An impact valve for pipes as defined in claim 2, wherein: the transmission mechanism comprises a traction rod and a flexible traction rope; the plurality of traction rods extend along the horizontal direction, the left ends of the traction rods are fixedly connected with the right ends of the top pressure plates, and the right ends are provided with rotating connecting rings; the left end of the flexible traction rope is connected with the rotary connecting ring, and the right end of the flexible traction rope is connected with the valve core; the top pressure plate return device is a spiral compression spring.
4. An impact valve for pipes as defined in claim 2, wherein: the supporting part comprises a rotating groove, a rotating supporting slide block and a supporting arm; the rotation groove is arranged along the circumferential direction of the inner side wall of the valve body, the rotary supporting sliding block is slidably arranged in the rotation groove along the circumferential direction of the valve body, the supporting arm is arranged along the axis direction perpendicular to the valve body, the two ends of the supporting arm are fixedly connected to the rotary supporting sliding block, and the middle of the supporting arm is fixedly connected to the right end of the main shaft.
5. An impact valve for pipes as defined in claim 1, wherein: the buffer mechanism further comprises a guide supporting elastic sheet, the guide supporting elastic sheet is arranged in the supporting slide way, the supporting slide way penetrates through the left end and the right end of the main shaft, the right end of the guide supporting elastic sheet is in contact with the bottom surface of the supporting slide way, the left end is rotatably installed at the inner end of the rotating shaft, and the left end of the guide supporting elastic sheet is located on the outer side of the right end along the radial direction of the valve body.
6. An impact valve for pipes as defined in claim 5 wherein: the supporting slide way comprises a water inlet pressurizing hole and a slide way portion which gradually shrink from left to right, the water inlet pressurizing hole is formed in the left side of the slide way portion, and the supporting elastic sheet is guided to be arranged at the left end of the slide way portion.
7. An impact valve for pipes as defined in claim 1, wherein: the length of at least one strip through hole is different from the length of each strip through hole, and the length of the guide tooth row is equal to the length of each strip through hole.
8. An impact valve for pipes as defined in claim 7 wherein: the outer side of the guide tooth row is provided with a limiting convex edge, and the gear is positioned on the inner side of the limiting convex edge.
9. An impact valve for pipes as defined in claim 1, wherein: a friction sleeve is arranged between the gear and the rotating shaft, the inner side of the friction sleeve is in friction contact with the outer side of the rotating shaft, and the outer side of the friction sleeve is in friction contact with the inner side of the gear.
10. A method of using a pipe impact valve according to any of claims 1-9, wherein the water flow moves from the left side to the right side of the valve body, characterized in that: the using method comprises the following steps:
the valve is opened by rotating the trip lever, the flexible traction rope is tensioned, the water baffle deflects and moves rightwards under the rotating friction action of the gear, and water flows through a gap formed after the water baffle deflects and moves;
the pulling rod is rotated reversely to close the valve, the jacking plate return device pushes the jacking plate to move leftwards, and the jacking plate pushes the water baffle to move leftwards, so that the water baffle is returned; when the water hammer impacts the water baffle to the right, the water baffle deflects under the rotating friction action of the gear and moves to the right, and the deflected water baffle provides torque for rotating the whole buffer mechanism under the impact of water flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010817132.9A CN111963763A (en) | 2020-08-14 | 2020-08-14 | Pipeline anti-impact valve and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010817132.9A CN111963763A (en) | 2020-08-14 | 2020-08-14 | Pipeline anti-impact valve and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111963763A true CN111963763A (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010817132.9A Withdrawn CN111963763A (en) | 2020-08-14 | 2020-08-14 | Pipeline anti-impact valve and using method thereof |
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| CN (1) | CN111963763A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107593A (en) * | 2021-05-20 | 2021-07-13 | 中北大学 | Water hammer eliminating device for mine drainage |
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| CN210106739U (en) * | 2019-04-15 | 2020-02-21 | 郑州市万安人防工程防护设备有限公司 | Explosion-proof ripples gate valve |
| CN210372115U (en) * | 2019-09-12 | 2020-04-21 | 郑州铝都阀门有限公司 | Buffer type eccentric half ball valve |
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2020
- 2020-08-14 CN CN202010817132.9A patent/CN111963763A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL123857C (en) * | 1962-05-16 | 1967-10-16 | ||
| KR20020034263A (en) * | 2000-10-31 | 2002-05-09 | 이영범 | Control check valve |
| CN203115120U (en) * | 2013-02-01 | 2013-08-07 | 中国航空工业集团公司西安飞机设计研究所 | Low-flow-resistance pipeline valve device structure |
| CN205559147U (en) * | 2016-04-21 | 2016-09-07 | 杜建波 | Pressure relief device of recoverable fluid energy |
| CN208907485U (en) * | 2018-10-15 | 2019-05-28 | 玉环县珠港铜业有限公司 | A kind of ball valve with automatic Regulation function |
| CN210106739U (en) * | 2019-04-15 | 2020-02-21 | 郑州市万安人防工程防护设备有限公司 | Explosion-proof ripples gate valve |
| CN210372115U (en) * | 2019-09-12 | 2020-04-21 | 郑州铝都阀门有限公司 | Buffer type eccentric half ball valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107593A (en) * | 2021-05-20 | 2021-07-13 | 中北大学 | Water hammer eliminating device for mine drainage |
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Application publication date: 20201120 |