CN116906668A - water pump control valve - Google Patents
water pump control valve Download PDFInfo
- Publication number
- CN116906668A CN116906668A CN202310930539.6A CN202310930539A CN116906668A CN 116906668 A CN116906668 A CN 116906668A CN 202310930539 A CN202310930539 A CN 202310930539A CN 116906668 A CN116906668 A CN 116906668A
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- Prior art keywords
- valve
- water inlet
- sealing
- cavity
- valve body
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 144
- 238000007789 sealing Methods 0.000 claims description 108
- 238000009434 installation Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 5
- 230000037396 body weight Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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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
- 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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- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/32—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting on a servo-mechanism or on a catch-releasing mechanism
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
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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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/363—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a piston
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention relates to the technical field of valves, and provides a water pump control valve which is reasonable in structural design, does not increase the difficulty of a manufacturing process and can realize the purpose of relieving damage of a water hammer to a valve body and a valve plate.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a water pump control valve.
Background
The water pump control valve is a multifunctional valve for controlling flow in a pilot mode, the piston type water pump control valve mainly comprises a valve body, a valve rod, a valve cover, a piston seat, a piston, a valve plate, a bypass pipe and the like, a channel through which a medium flows is arranged in the valve body, two ends of the channel are respectively a water inlet end and a water outlet end, a valve port is arranged at the position of the channel in the valve body, the valve plate is arranged at the valve port, the valve cover and the piston seat jointly enclose a sealing cavity, the piston is fixedly connected to the upper end of the valve rod and separates the sealing cavity into an upper cavity and a lower cavity, the lower end of the valve rod is fixedly connected with the valve plate, the piston drives the valve plate to move along the valve rod through the valve rod so as to realize opening and closing of the valve port, the water inlet end is communicated with the lower cavity through a first bypass pipe, and the water outlet end is communicated with the upper cavity through a second bypass pipe, and when the water pressure pushes the piston to regulate the volumes of the upper cavity and the lower cavity, so that the pressure difference between the water inlet end and the water outlet end is regulated, and the flow balance is automatically realized under the condition that no power is needed. After the valve plate is closed to the valve port, the water pressure of the water inlet end of the water pump control valve can generate larger water hammer impact force, the water hammer and the valve plate form opposite impact, and the valve plate or the valve body is easy to damage.
The existence of the water hammer is a problem that the valve is always solving, and the scheme is generated in order to relieve the water hammer problem and reduce the influence of the water hammer on the valve body and the valve plate.
Disclosure of Invention
Therefore, aiming at the problems, the invention provides the water pump control valve which has reasonable structural design, does not increase the difficulty of the manufacturing process and can relieve the damage of the water hammer to the valve body and the valve plate.
In order to solve the technical problems, the invention adopts the following solution: the water pump control valve comprises a valve body, a valve cover, a piston seat, a piston, a valve rod and a valve plate, wherein a channel for medium to flow through is arranged in the valve body, two ends of the channel are respectively provided with a water inlet end and a water outlet end, the valve cover and the piston seat form a sealing cavity, the piston is arranged in the piston seat in a sliding manner, the sealing cavity is divided into an upper cavity and a lower cavity by the piston, a first bypass pipe is communicated between the water inlet end and the lower cavity of the valve body, a second bypass pipe is communicated between the water outlet end and the upper cavity of the valve body, the valve body is provided with a valve port between the water inlet end and the water outlet end, the valve plate can be opened and closed and arranged at the valve port, the upper end part of the valve rod is arranged in the piston seat in a sealing penetrating manner and is fixedly connected with the piston, the lower end part of the valve plate is fixedly connected with the valve plate, the valve is characterized in that a water inlet end of the valve body is provided with a volume expansion body which is used for expanding a water inlet cavity formed between the valve body and the valve plate at the water inlet end when the valve plate is closed and relieving the pressure of the water inlet cavity so as to relieve the problem of water hammer, the volume expansion cavity is formed in the volume expansion body, the volume expansion body is provided with a connecting pipe which is communicated with the volume expansion cavity and is used for installing the volume expansion body, the fixed end of the connecting pipe is fixedly arranged on the volume expansion body, the valve body is positioned at the water inlet end and is provided with an opening through which a medium flows, the connecting end of the connecting pipe is detachably and hermetically inserted in the opening, the outer wall of the connecting pipe is provided with an installation structure which is used for detachably installing the connecting pipe and the valve body, and a connecting pipe which is movably arranged between the volume expansion cavity and the inner part of the connecting pipe along with the opening and closing movement of the valve plate is arranged between the volume expansion cavity and the valve plate, the water hammer preventing device is characterized in that after the valve plate is closed, the valve plate is communicated with the water inlet cavity and the expansion cavity to allow a medium to enter the expansion cavity so as to relieve the influence of a water hammer on the valve body and the valve plate, when the valve plate is initially opened and the water inlet end is communicated with the water outlet end, the medium in the expansion cavity is synchronously discharged, and after the valve plate is opened, the communication between the water inlet cavity and the expansion cavity is blocked so as to avoid influencing the pressure difference adjustment of the piston to the water inlet end and the water outlet end.
The further improvement is that: the waterproof hammer device comprises a rubber ball capable of filling a medium or contracting and discharging the medium along with hydraulic expansion, a sealing ball, a connecting rope and a sealing guide sleeve, wherein the rubber ball is arranged in the capacity expansion cavity, a plurality of air holes communicated with the outside are formed in the capacity expansion body, an opening of the rubber ball is reversely sleeved on the outer wall of the connecting end of the connecting pipe, the sealing guide sleeve is sleeved on the connecting end of the connecting pipe, the outer wall of the sealing guide sleeve is in sealing fit with the inner wall of the opening, a sealing slot for inserting the connecting end of the connecting pipe and the opening end of the rubber ball is formed in the sealing guide sleeve, the inner wall of the sealing slot is used for pressing and fixing the rubber ball to the inner wall of the connecting pipe and extending the free end of the rubber ball to the capacity expansion cavity, one end of the connecting rope is fixedly arranged at the lower end of the valve rod, the other end of the connecting rope is arranged on the sealing ball, the sealing ball is arranged in the sealing guide sleeve and the inner wall of the sealing guide sleeve, the sealing ball is in sealing guide sleeve is in sealing fit with the inner wall of the sealing guide sleeve, and the sealing ball is blocked up and down the water cavity along with lifting movement, and the connecting cavity is separated from the inner cavity, or the sealing guide sleeve is used for limiting the sealing guide structure which is arranged on the inner cavity and is in connection with the capacity expansion cavity.
The further improvement is that: the limiting structure comprises a limiting ring, the limiting ring is arranged on the inner wall of the fixed end of the sealing guide sleeve, and the inner diameter of the limiting ring is smaller than the diameter of the sealing ball.
The further improvement is that: the outer surface of the sealing ball and the inner wall of the sealing guide inner sleeve are smooth surfaces.
The further improvement is that: the mounting structure comprises a mounting boss which is positioned in the middle of the connecting pipe and arranged along the circumferential direction, a plurality of mounting first thread mounting holes are formed in the mounting boss, a second thread mounting hole matched with the first thread mounting holes is formed in the valve body, and fastening bolts are detachably arranged in the first thread mounting holes and the second thread mounting holes.
The further improvement is that: the sealing slot outer wall of the sealing guide sleeve is positioned at one end of the valve body outer wall and is arranged on a clamping boss which is clamped with the valve body outer wall to limit the sealing guide sleeve to move towards the interior of the valve body, and a pressing groove which is used for the clamping boss to extend into and tightly prop against the clamping boss on the valve body is formed in the end face of the mounting boss, which is positioned on one side of the valve body.
The further improvement is that: the expansion body set up in the valve body lower extreme, the valve body lower extreme is located the water inlet end and the play water end of expansion ware both sides and is provided with the support protection piece that is used for holding up the valve body and avoids the expansion body to bear the valve body weight and protect the expansion body not receive the striking.
The further improvement is that: the shape of the expansion body is spherical.
By adopting the technical scheme, the invention has the beneficial effects that:
1. in the scheme, the capacity of the water inlet cavity after the valve plate is closed is enlarged by arranging the capacity-enlarging body so as to weaken the water pressure of the water inlet end, lighten the action of a water hammer and protect the valve. When the valve plate opens the valve port, the expansion cavity and the interior of the valve block the communication under the action of the sealing balls, and the automatic control of the piston and the piston seat on the valve plate is not affected. The scheme has simple integral structure and does not need other power sources to drive the sealing balls to move.
2. The sealing ball used for enabling the water inlet cavity to be communicated with the capacity expansion cavity or blocked is driven by the valve rod, and the pulling distance between the sealing ball and the bottom of the valve rod (or the center of the bottom of the valve plate) is larger than the distance from the bottom of the valve rod (or the center of the bottom of the valve plate) to the fixed end of the connecting pipe when the valve plate leaves the valve port and is initially communicated with the water inlet end and the water outlet end along with lifting corresponding movement of the valve rod. When the valve rod rises to the highest position, the movable ball is positioned at a position close to the limiting ring; the valve rod is lifted up to the valve plate for initial opening, the sealing ball is positioned at the cavity opening of the expansion cavity and does not block the communication between the water inlet cavity and the expansion cavity; when the valve rod continues to rise to a distance from the valve port, the sealing ball is positioned on the sealing guide inner sleeve to block the communication between the water inlet cavity and the expansion cavity, namely the setting length of the sealing guide inner sleeve is limited by the movable range of the valve plate. After the valve plate is closed, the medium in the water inlet cavity enters the rubber ball under the action of pressure and expands the rubber ball, the maximum capacity of the rubber ball is limited by the expansion body, and the expansion body not only limits the expansion volume of the rubber ball, but also avoids damaging the rubber ball due to excessive expansion. And in the condition that the valve plate is separated from the valve port by 0-5mm, the medium in the rubber ball is discharged from the rubber ball to the inside of the valve under the shrinkage of the rubber ball and the water pressure reduction of the water inlet cavity, so that the capacity expansion effect of the valve plate is prepared for the next closing of the valve plate.
3. The connecting pipe and the rubber ball port are inserted into the sealing slot of the sealing guide sleeve, namely, the fixed installation of the rubber ball is realized, and the rubber ball seals the connecting pipe and the sealing guide sleeve. The inner wall of the sealing guiding inner sleeve in the sealing guiding sleeve is smooth and is jointed with the smooth sealing ball to realize sealing. The sealing ball can vacuumize the rubber ball when sliding in the sealing guiding inner sleeve, and the rubber ball is flexible, so that the sealing ball can be well adapted to the movement of the sealing ball. The vent holes arranged on the expansion body can also be well adapted to the deformation of the rubber ball.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a water pump control valve according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the valve plate in the water pump control valve according to the embodiment of the invention after the valve plate closes the valve port.
Fig. 3 is a schematic diagram of an internal structure of a valve plate primary opening valve port in a water pump control valve according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of an internal structure of a valve plate for opening a valve port in a water pump control valve according to an embodiment of the present invention.
Fig. 5 is an enlarged view of a partial structure at a in fig. 2.
Fig. 6 is an enlarged view of a partial structure at B in fig. 3.
Fig. 7 is an enlarged view of a partial structure at C in fig. 4.
Description of the embodiments
The invention will now be further described with reference to the drawings and specific examples.
Referring to fig. 1 to 7, the embodiment of the invention discloses a water pump control valve, which comprises a valve body 10, a valve cover 11, a piston seat 12, a piston 13, a valve rod 14 and a valve plate 15, wherein a channel through which a medium flows is arranged in the valve body 10, two ends of the channel are respectively a water inlet end 16 and a water outlet end 17, the valve cover 11 and the piston seat 12 form a sealed cavity, the piston 13 is slidably arranged in the piston seat 12, the piston 13 separates the sealed cavity into an upper cavity and a lower cavity, a first bypass pipe 18 is communicated between the water inlet end 16 and the lower cavity of the valve body 10, a second bypass pipe 19 is communicated between the water outlet end 17 and the upper cavity of the valve body 10, the first bypass pipe 18 and the second bypass pipe 19 are respectively provided with an opening and closing valve for controlling the opening and closing of the bypass pipe, the valve body 10 is arranged between the water inlet end 16 and the water outlet end 17, the valve plate 15 can be arranged at the valve opening 20, the upper end of the valve rod 14 is hermetically arranged in the piston seat 12 and is in a penetrating manner, the upper end of the piston seat 13 is fixedly connected with the water inlet end 16 and the valve plate 16, and the water outlet end 21 of the valve body 10 is fixedly connected with the valve body 10, and the water inlet end 21 is fixedly arranged at the water inlet end 21 and the valve body 10 is fixedly connected with the water outlet end 15, and the valve body is fixedly arranged at the water inlet end 21, and the valve body is supported by the valve body 10, and the valve body is supported at the water inlet end 21, and the valve body is supported at the water inlet end is supported by the valve body 10, and the valve body is supported by the valve body at the valve body is supported by the valve body and the water inlet end and the valve body is at the end and is supported by the valve body at the end and is at the end 21. The shape of the dilatation body 21 is ball-shaped, a circular dilatation cavity 8 is formed inside the dilatation body 21, a connecting pipe 23 which is communicated with the dilatation cavity 8 and used for installing the dilatation body 21 is arranged on the dilatation body 21, the fixed end of the connecting pipe 23 is fixedly arranged on the dilatation body 21, an opening 24 through which a medium flows is formed in the water inlet end 16 of the valve body 10, the connecting end of the connecting pipe 23 is detachably and hermetically inserted into the opening 24, an installation structure used for detachably installing the connecting pipe 23 on the valve body 10 is arranged on the outer wall of the connecting pipe 23, the installation structure comprises an installation boss 25 which is arranged in the middle part of the connecting pipe 23 and integrally arranged along the circumferential direction, a plurality of first thread installation holes are formed in the installation boss 25, a second thread installation hole matched with the first thread installation holes is formed in the valve body 10, and a fastening bolt 26 is detachably arranged in the first thread installation hole and the second thread installation hole.
The water hammer preventing device is arranged between the expansion body 21 and the valve plate 15, and moves between the expansion cavity 8 and the inside of the connecting pipe 23 along with the opening and closing movement of the valve plate 15, and enables the water inlet cavity to be communicated with the expansion cavity 8 after the valve plate 15 closes the valve port 20 so as to enable a medium to enter the expansion cavity 8 to relieve the influence of a water hammer on the valve body 10 and the valve plate 15, and firstly synchronously discharges the medium in the expansion cavity 8 when the valve plate 15 is initially opened and the water inlet end 16 is communicated with the water outlet end 17, and blocks the communication between the water inlet cavity and the expansion cavity 8 after the valve plate 15 is opened so as to avoid influencing the pressure difference adjustment of the piston 13 to the water inlet end 16 and the water outlet end 17.
The waterproof hammer device comprises a rubber ball 27, a sealing ball 28, a connecting rope 29 and a sealing guide sleeve 30, wherein the rubber ball 27 can expand along with water pressure to fill in or shrink out a medium, the rubber ball 27 is arranged in the expansion cavity 8, a plurality of air holes communicated with the outside are formed in the expansion body 21, an opening 24 of the rubber ball 27 is reversely sleeved on the outer wall of the connecting end of the connecting pipe 23, the sealing guide sleeve 30 is sleeved on the connecting end of the connecting pipe 23, a rubber sealing sleeve is arranged on the outer wall of the sealing guide sleeve 30 and the inner wall of the opening 24 to enable the sealing guide sleeve 30 and the valve body 10 to be in sealing fit with each other, the outer wall of a sealing slot 9 of the sealing guide sleeve 30 is positioned at one end of the outer wall of the valve body 10 and integrally arranged on a clamping boss 31 which limits the sealing guide sleeve 30 to move towards the inside of the valve body 10, and a pressing groove 32 which is used for enabling the clamping boss 31 to extend into and tightly prop against the valve body 10 is formed in the end face of the side of the valve body 10. The sealing guide sleeve 30 is provided with a sealing slot 9 for inserting the connecting end of the connecting pipe 23 and the opening 24 end of the rubber ball 27, the inner groove wall of the sealing slot 9 presses and fixes the rubber ball 27 to the inner wall of the connecting pipe 23, and the free end extends into the expansion cavity 8 to form a sealing guide inner sleeve 33. The connecting rope 29 is a nylon rope, one end of the connecting rope 29 is fixedly arranged at the lower end part of the valve rod 14, and the other end of the connecting rope 29 is arranged on the sealing ball 28. Threaded holes are respectively formed in the lower end portion of the valve rod 14 and the sealing balls 28, threaded rods 34 are fixedly connected with the threaded holes in a threaded mode, annular rings 35 are integrally arranged on the threaded rods, and the ends of the nylon ropes are wound on the annular rings. The sealing ball 28 is a steel ball, the sealing ball 28 is disposed in the sealing guide sleeve 30 and the rubber ball 27, the sealing ball 28 can be bonded and sealed with the inner wall of the sealing guide sleeve 30 to block media from entering the rubber ball 27, the sealing ball 28 blocks the communication between the water inlet cavity and the expansion cavity 8 or the communication between the water inlet cavity and the expansion cavity 8 along with the lifting movement of the valve rod 14, and a limiting structure for limiting the separation of the sealing ball 28 is disposed on the fixed end of the sealing guide inner sleeve 33. The limiting structure comprises a limiting ring 36, the limiting ring 36 is integrally arranged on the inner wall of the fixed end of the sealing guide sleeve 30, and the inner diameter of the limiting ring 36 is smaller than the diameter of the sealing ball 28. The outer surface of the sealing ball 28 and the inner wall of the sealing guide inner sleeve 33 are smooth surfaces.
When the valve is closed, the valve plate 15 moves to the valve port 20, at this time, the sealing steel ball is positioned in the rubber ball 27, the water inlet cavity of the valve is communicated with the expansion cavity 8, the medium enters into the rubber ball 27 along the sealing guiding inner sleeve 33, the rubber ball 27 is inflated to reduce the pressure of the water inlet cavity, the water hammer is relieved, and the valve is protected. When the valve plate 15 is initially opened, the medium in the water inlet cavity starts to flow into the water outlet end 17, the pressure of the water inlet cavity is reduced, and the medium in the rubber ball 27 is reduced under the action of the pressure reduction of the water inlet cavity and the self elastic contraction force to be discharged. After the valve is completely opened and when the pressure difference between the water inlet end 16 and the water outlet end 17 is automatically regulated, the sealing ball 28 is positioned in the sealing guide inner sleeve 33, and the communication between the water inlet cavity and the expansion cavity 8 is blocked, so that the medium is blocked from entering the rubber ball 27, and the pressure difference between the water inlet end 16 and the water outlet end 17 of the valve is prevented from being influenced.
While the basic principles and main features of the present invention and advantages thereof have been shown and described, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described merely by way of illustration of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a water pump control valve, includes valve body, valve gap, piston seat, piston, valve rod and valve plate, be equipped with the passageway that supplies the medium to flow through in the valve body, the both ends of passageway are water inlet end and play water end respectively, the valve gap forms sealed cavity with the piston seat, the piston slide set up in the piston seat, the piston separates sealed cavity into upper chamber and lower chamber, the intercommunication is provided with first bypass pipe between water inlet end and the lower chamber of valve body, the intercommunication is provided with the second bypass pipe between water outlet end and the upper chamber of valve body, the valve body is located and has seted up the valve port between water inlet end and the water outlet end, the valve plate can open and close set up in the valve port, valve rod upper end seal wear to locate in the piston seat with piston fixed connection, lower tip with valve plate fixed connection, its characterized in that: the valve is characterized in that a water inlet cavity formed between the valve body and the valve plate at the water inlet end of the valve body is expanded and the pressure of the water inlet cavity is relieved to relieve the problem of a water hammer when the valve plate is closed, the water inlet cavity is formed inside the water inlet cavity, a connecting pipe which is communicated with the water inlet cavity and used for installing the water inlet cavity is arranged on the water inlet end of the valve body, the fixed end of the connecting pipe is fixedly arranged on the water inlet cavity, an opening through which a medium flows is formed in the water inlet end of the valve body, the connecting end of the connecting pipe is detachably and hermetically inserted in the opening, an installation structure which is used for detachably installing the connecting pipe and the valve body is arranged on the outer wall of the connecting pipe, a pressure difference adjusting device which is movably arranged between the water inlet cavity and the inside the connecting pipe along with the opening and closing movement of the valve plate is arranged between the water inlet cavity and the valve plate, and the water inlet cavity is communicated with the water inlet cavity after the valve plate is closed so as to relieve the influence of the water hammer on the valve plate, the medium in the water inlet cavity is synchronously discharged when the water inlet end is communicated with the water outlet end of the valve plate, and the water inlet cavity is blocked at first time, and the pressure difference of the water inlet cavity is prevented from being influenced by the water inlet piston and the water inlet end of the valve plate.
2. The water pump control valve according to claim 1, wherein: the waterproof hammer device comprises a rubber ball capable of filling a medium or contracting and discharging the medium along with hydraulic expansion, a sealing ball, a connecting rope and a sealing guide sleeve, wherein the rubber ball is arranged in the capacity expansion cavity, a plurality of air holes communicated with the outside are formed in the capacity expansion body, an opening of the rubber ball is reversely sleeved on the outer wall of the connecting end of the connecting pipe, the sealing guide sleeve is sleeved on the connecting end of the connecting pipe, the outer wall of the sealing guide sleeve is in sealing fit with the inner wall of the opening, a sealing slot for inserting the connecting end of the connecting pipe and the opening end of the rubber ball is formed in the sealing guide sleeve, the inner wall of the sealing slot is used for pressing and fixing the rubber ball to the inner wall of the connecting pipe and extending the free end of the rubber ball to the capacity expansion cavity, one end of the connecting rope is fixedly arranged at the lower end of the valve rod, the other end of the connecting rope is arranged on the sealing ball, the sealing ball is arranged in the sealing guide sleeve and the inner wall of the sealing guide sleeve, the sealing ball is in sealing guide sleeve is in sealing fit with the inner wall of the sealing guide sleeve, and the sealing ball is blocked up and down the water cavity along with lifting movement, and the connecting cavity is separated from the inner cavity, or the sealing guide sleeve is used for limiting the sealing guide structure which is arranged on the inner cavity and is in connection with the capacity expansion cavity.
3. The water pump control valve according to claim 2, wherein: the limiting structure comprises a limiting ring, the limiting ring is arranged on the inner wall of the fixed end of the sealing guide sleeve, and the inner diameter of the limiting ring is smaller than the diameter of the sealing ball.
4. The water pump control valve according to claim 2, wherein: the outer surface of the sealing ball and the inner wall of the sealing guide inner sleeve are smooth surfaces.
5. The water pump control valve according to claim 2 or 3 or 4, characterized in that: the mounting structure comprises a mounting boss which is positioned in the middle of the connecting pipe and arranged along the circumferential direction, a plurality of mounting first thread mounting holes are formed in the mounting boss, a second thread mounting hole matched with the first thread mounting holes is formed in the valve body, and fastening bolts are detachably arranged in the first thread mounting holes and the second thread mounting holes.
6. The water pump control valve according to claim 5, wherein: the sealing slot outer wall of the sealing guide sleeve is positioned at one end of the valve body outer wall and is arranged on a clamping boss which is clamped with the valve body outer wall to limit the sealing guide sleeve to move towards the interior of the valve body, and a pressing groove which is used for the clamping boss to extend into and tightly prop against the clamping boss on the valve body is formed in the end face of the mounting boss, which is positioned on one side of the valve body.
7. The water pump control valve according to claim 1 or 2 or 3 or 4 or 6, characterized in that: the expansion body set up in the valve body lower extreme, the valve body lower extreme is located the water inlet end and the play water end of expansion ware both sides and is provided with the support protection piece that is used for holding up the valve body and avoids the expansion body to bear the valve body weight and protect the expansion body not receive the striking.
8. The water pump control valve according to claim 1 or 2 or 3 or 4 or 6, characterized in that: the shape of the expansion body is spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310930539.6A CN116906668A (en) | 2023-07-27 | 2023-07-27 | water pump control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310930539.6A CN116906668A (en) | 2023-07-27 | 2023-07-27 | water pump control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116906668A true CN116906668A (en) | 2023-10-20 |
Family
ID=88352861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310930539.6A Pending CN116906668A (en) | 2023-07-27 | 2023-07-27 | water pump control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116906668A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117889246A (en) * | 2024-03-15 | 2024-04-16 | 泉州市云航消防设备有限公司 | Wet alarm valve for preventing false alarm |
-
2023
- 2023-07-27 CN CN202310930539.6A patent/CN116906668A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117889246A (en) * | 2024-03-15 | 2024-04-16 | 泉州市云航消防设备有限公司 | Wet alarm valve for preventing false alarm |
| CN117889246B (en) * | 2024-03-15 | 2024-05-28 | 泉州市云航消防设备有限公司 | Wet alarm valve for preventing false alarm |
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