CN110578806B - Damping back pressure valve - Google Patents
Damping back pressure valve Download PDFInfo
- Publication number
- CN110578806B CN110578806B CN201910944313.5A CN201910944313A CN110578806B CN 110578806 B CN110578806 B CN 110578806B CN 201910944313 A CN201910944313 A CN 201910944313A CN 110578806 B CN110578806 B CN 110578806B
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- water outlet
- valve
- valve body
- adjusting
- guide groove
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- 238000013016 damping Methods 0.000 title abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 176
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims description 30
- 230000035939 shock Effects 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 16
- 239000012530 fluid Substances 0.000 description 22
- 230000001105 regulatory effect Effects 0.000 description 10
- 238000007789 sealing Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000001502 supplementing effect Effects 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
- F16K1/523—Means for additional adjustment of the rate of flow for limiting the maximum flow rate, using a stop
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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
- F16K27/0236—Diaphragm cut-off apparatus
-
- 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
- F16K31/60—Handles
- F16K31/602—Pivoting levers, e.g. single-sided
-
- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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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
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
- F16K7/17—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Driven Valves (AREA)
- Safety Valves (AREA)
Abstract
The utility model discloses a damping back pressure valve, which relates to the field of back pressure valves, and is technically characterized in that: including valve gap, diaphragm and the valve body that connects gradually, be provided with water inlet and delivery port on the valve body, the one end that the valve body is close to the valve gap is provided with inlet guide slot and the play water guide slot that corresponds the switch on with water inlet and delivery port, be provided with on the valve gap and be used for supporting tight diaphragm in the play water guide slot and make the spring mechanism that the valve body closed, the valve body keep away from valve gap one end seted up with the mounting groove of the coaxial setting of play water guide slot and intercommunication, still be provided with the adjusting part that is used for controlling valve body play water runner size in the mounting groove. The adjusting component is arranged, the size of the water outlet flow channel is adjusted through the adjusting component, and vibration caused by the fact that the valve body is impacted by the diaphragm due to the spring mechanism is reduced, so that the damping effect is achieved.
Description
Technical Field
The present utility model relates to the field of back pressure valves, and more particularly, to a shock absorbing back pressure valve.
Background
Back pressure valves may be used to control the flow of various types of fluids.
The patent number CN202768970U discloses a back pressure valve, which comprises a valve cover, a diaphragm and a valve body which are sequentially connected, and further comprises a spring mechanism and an adjusting mechanism, wherein the valve cover and the valve body are respectively provided with a concave cavity, the valve body is provided with a water inlet and a water outlet, the spring mechanism is arranged in the concave cavity of the valve cover and is arranged at the upper end of the diaphragm, the adjusting mechanism is connected to the valve cover, the adjusting mechanism is arranged at the upper end of the spring mechanism, a water interception surface is arranged in the concave cavity of the valve body, and the valve body and the water interception surface are integrally formed.
When in use, fluid enters from the water inlet of the back pressure valve and is blocked by the diaphragm, so that the fluid generates upward pressure on the diaphragm. When the pressure is large enough, the spring is compressed, the fluid props up the diaphragm to form a channel, and the fluid flows out from the water outlet of the back pressure valve; if the fluid pressure is insufficient, a holding pressure is formed, the inlet pressure is increased until the rated pressure is reached, and the diaphragm is jacked up to form a passage.
In the use process of the back pressure valve, after the diaphragm is jacked up by water, when the water outlet is too fast in discharge speed, the whole pressure drop amplitude is too large, when the pressure of the jacked diaphragm does not reach the pressure value set by the spring, the diaphragm is quickly reset, the pressure value at one end of the water inlet is quickly increased by water inlet at one end of the water inlet after reset, and the diaphragm is repeatedly opened after the pressure value reaches the spring set value. In the process, the diaphragm can form repeated opening and closing processes, and in the process, the diaphragm can continuously strike the valve body under the action of the spring, so that vibration is easy to form, long-term use of the back pressure valve is not facilitated, and the back pressure valve needs to be improved.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the damping back pressure valve, which has the advantages of reducing the vibration of the back pressure valve and enabling the back pressure valve to be used more permanently.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a shock attenuation backpressure valve, includes valve gap, diaphragm and the valve body that connects gradually, be provided with water inlet and delivery port on the valve body, the one end that the valve body is close to the valve gap is provided with water inlet guide slot and the play water guide slot that corresponds the switch on with water inlet and delivery port, be provided with on the valve gap and be used for supporting tight diaphragm in play water guide slot and make the spring mechanism that the valve body closed, the valve body keep away from valve gap one end seted up with the mounting groove of the coaxial setting of play water guide slot and intercommunication, still be provided with the adjusting part that is used for controlling valve body play water runner size in the mounting groove.
Through above-mentioned technical scheme, set up adjusting part, can adjust the size of play water runner through adjusting part. At this time, fluid enters from the water inlet of the back pressure valve and is blocked by the diaphragm, so that the fluid generates upward pressure on the diaphragm. When the pressure is large enough, the spring mechanism is compressed, the fluid props up the diaphragm to form a channel, and the fluid flows out of a water outlet channel formed by the water outlet guide groove of the back pressure valve and the water outlet.
When the valve body vibrates stronger, the water outlet flow passage can be reduced through the adjusting component. When the fluid passes through the water outlet flow passage, the water outlet flow passage is reduced due to the adjusting component, so that the discharge speed of the water outlet is slowed down. At the moment, the fluid on one side of the water inlet is accumulated to compress the spring mechanism so as to push the diaphragm open, and the discharge speed of the water outlet is slowed down, so that the pressure drop value between the water inlet and the water outlet of the valve body, which are close to the diaphragm, is reduced, the frequency of the spring mechanism abutting against the diaphragm to reset is greatly reduced, the frequency of the diaphragm striking the valve body is reduced, and the damping effect is achieved.
In addition, under the ideal state, when the runner is adjusted to proper size, when the speed that the water inlet was mended is equal with drainage speed, the fluid that the delivery port was discharged in time mends at the water inlet this moment to make the pressure drop of diaphragm department become less, can make spring mechanism continuously be in compression state, thereby reduced the valve body because spring mechanism makes the diaphragm strike the valve body and forms vibrations, thereby further realize the effect of shock attenuation.
In addition, the water outlet flow passage can be controlled to achieve the closing effect through the adjusting component, so that the back pressure valve can be used as a stop valve, and the dual-purpose effect of one valve is achieved.
Furthermore, the adjusting component is an adjusting column which is connected in the mounting groove in a threaded manner, and one end of the adjusting column, which faces the diaphragm, is used for blocking the communicating size of the water outlet guide groove and the water outlet.
Through the technical scheme, when the size of the water outlet flow channel is required to be regulated, the relative position of the regulating column and the water outlet guide channel can be regulated, so that the position of the regulating column, which is close to one end of the membrane, is changed to shield the water outlet guide channel, the flow channel between the water outlet guide channel and the water outlet is changed, and the regulation of the size of the flow channel is realized.
Further, the water outlet guide groove is in a cylindrical shape, and the diameter of the adjusting column is equal to or larger than that of the water outlet guide groove.
Through the technical scheme, the diameter of the adjusting column is larger than or equal to that of the water outlet guide groove, when one end of the adjusting column, which is close to the diaphragm, is completely abutted against the water outlet guide groove, the relationship that the water outlet guide groove is disconnected from the water outlet is achieved, the intercepting effect is achieved, and the back pressure valve can also be used as a stop valve.
Further, the diameter of one end of the adjusting column close to the water outlet guide groove gradually becomes smaller towards the direction close to the membrane.
Through above-mentioned technical scheme, the convergent setting of adjusting the post for the terminal surface of adjusting the post can lead to the fluid, avoids the fluid to hit directly to adjust the post terminal surface, in addition when adjusting the post and making out the water channel break-make, the one end that the adjusting the post is close to out the water guide slot can imbed out in the water guide slot, thereby makes and uses the leakproofness better when being regarded as the stop valve, and the effect of closure is more stable.
Further, the adjusting assembly comprises an installation part arranged in the installation groove, an adjusting ball rotationally connected in the installation part, and a rotating part fixedly connected with the adjusting ball and rotationally connected with the installation part; the installation part is blocked at the junction of the water outlet and the water outlet guide groove, guide grooves are formed in the side wall of the installation part, which is close to the water outlet guide groove and the water outlet, and the two guide grooves are correspondingly communicated with the water outlet guide groove and the water outlet and are communicated with each other; the adjusting ball is correspondingly provided with guide holes communicated with the two guide grooves; the rotating part penetrates out of the mounting part in the direction away from the membrane to control the flow guide holes of the adjusting ball to be staggered or communicated with the two flow guide grooves.
Through the technical scheme, when the size of the water outlet flow channel is required to be adjusted, the adjusting ball can be rotated by rotating the rotating part, the communicating part between the flow guide hole of the adjusting ball and the two flow guide grooves is reduced, the water outlet flow channel is adjusted, when the flow guide hole and the flow guide grooves are completely staggered, the water outlet flow channel is disconnected, and therefore the back pressure valve is in a shut-off state, and can be used as a stop valve.
Further, the water outlet guide groove is in a cylindrical shape, the diameter of the adjusting ball is larger than that of the water outlet guide groove, and the diameter of the guide hole is the same as that of the water outlet guide groove and the guide groove.
Through above-mentioned technical scheme for after adjusting part installs, when water conservancy diversion hole and guiding gutter align completely and with play water guide slot and delivery port when being linked together completely, the adjusting part that increases can not cause the influence to the play water runner of backpressure valve, makes backpressure valve can keep its original play water flow.
Further, the adjusting ball is made of plastic materials.
Through above-mentioned technical scheme, the regulating ball is plastics, and plastic materials has better corrosion resistant effect, and plastic materials has certain elasticity in addition, and when the regulating ball used, the regulating ball can support tightly in the installation department for the certain power of needs adoption when the regulating ball rotates, thereby also can make the regulation back position of regulating ball more stable.
Further, the installation department includes first splice and second splice concatenation formation, and the concatenation face of first splice and second splice is through the axis of rotation setting of adjusting the ball.
Through above-mentioned technical scheme, the installation department forms through the concatenation for the installation of adjusting ball and installation department is more convenient.
Further, one end of the mounting part far away from the valve body is also in threaded connection with a locking ring for tightly propping and fixing the mounting part, and the rotating part correspondingly penetrates through the locking ring.
Through above-mentioned technical scheme, install the adjusting ball through the installation department for when the adjusting ball rotates, the installation department can be fixed with the valve body relatively, can fix the installation department through the locking ring, thereby when making the adjusting ball rotate, the installation department is motionless basically, is difficult for influencing the locking of locking ring this moment, makes whole use more stable.
Further, the rotating part comprises a rotating rod arranged at one end of the rotating part far away from the valve cover, the rotating rod is positioned in the mounting groove, and an indicator for indicating the alignment of the diversion holes and the two diversion trenches is arranged at one end of the valve body far away from the valve cover.
Through above-mentioned technical scheme, set up the indicator, can reach the effect that makes guiding hole and guiding gutter align completely through the indicator with the dwang alignment indicator, the play water runner is in the maximum state this moment.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The size of the water outlet flow channel is adjusted through the adjusting component, so that vibration caused by the fact that the valve body is impacted by the diaphragm due to the spring mechanism is reduced, and the damping effect is achieved; in addition, the water outlet flow passage can be controlled to achieve the closing effect through the adjusting component, so that the back pressure valve can be used as a stop valve, and the dual-purpose effect of one valve is achieved;
(2) By arranging the adjusting column, the relative position of the adjusting column and the water outlet guide groove is adjusted, so that the flow passage between the water outlet guide groove and the water outlet is changed, and the size of the water outlet flow passage is adjusted;
(3) Through setting up installation department, adjusting ball and rotation portion, drive the adjusting ball through rotation portion and rotate the intercommunication relation that makes the water conservancy diversion hole of adjusting ball and two guiding gutter of installation department change, realize the regulation to the outlet flow channel size.
Drawings
FIG. 1 is an overall schematic of a first embodiment for showing an open condition of a regulator column;
FIG. 2 is an overall schematic of an embodiment I for showing the closed condition of the adjusting column;
FIG. 3 is a schematic diagram of a second embodiment showing an open state of the adjusting assembly;
FIG. 4 is a schematic view of a second embodiment showing the closed state of the adjusting assembly;
fig. 5 is a schematic view of a partial explosion of a regulating assembly according to the second embodiment.
Reference numerals: 1. a valve cover; 2. a membrane; 3. a valve body; 4. a water inlet; 5. a water outlet; 6. a water inlet guide groove; 7. a water outlet guide groove; 8. a spring mechanism; 81. a pressing part; 82. a spring is abutted tightly; 9. an adjusting block; 10. a mounting groove; 11. an adjustment assembly; 111. an adjusting column; 112. a mounting part; 1121. a first splice; 1122. a second splice; 113. an adjusting ball; 114. a rotating part; 12. a seal ring; 13. a locking ring; 14. a diversion trench; 15. a rubber pad; 16. a deflector aperture; 17. a rotating lever; 18. an indicator.
Detailed Description
The present utility model will be described in detail below with reference to the accompanying drawings and examples.
Embodiment one:
a damping back pressure valve, as shown in figures 1 and 2, comprises a valve cover 1, a diaphragm 2 and a valve body 3 which are connected in sequence. The valve body 3 is provided with a water inlet 4 and a water outlet 5, and one end of the valve body 3, which is close to the valve cover 1, is provided with a water inlet guide groove 6 and a water outlet guide groove 7 which are correspondingly communicated with the water inlet 4 and the water outlet 5. The material of the diaphragm 2 can be polytetrafluoroethylene composite material, and the diaphragm 2 is positioned between the valve body 3 and the valve cover 1.
The valve cover 1 is further provided with a spring mechanism 8, the spring mechanism 8 comprises a propping part 81 connected in the valve cover 1 in a sliding manner and a propping spring 82 arranged in the valve cover 1, the propping part 81 is generally cylindrical, and the propping part 81 is arranged close to the diaphragm 2. The elastic force of the abutting spring 82 abuts against the abutting portion 81 to press the diaphragm 2 on the valve body 3, so that the diaphragm 2 is used for sealing the water outlet guide groove 7. Normally, one end of the valve cover 1, which is far away from the valve body 3, is also in threaded connection with an adjusting block 9, and the end of the adjusting block 9, which is far away from the abutting portion 81, of the abutting spring 82 is used for adjusting the elasticity of the abutting spring 82, so that the rated pressure of the back pressure valve is adjusted.
As shown in fig. 1, the water outlet guide groove 7 and the water outlet 5 are both cylindrical holes, and in the embodiment, the diameter of the water outlet guide groove 7 and the diameter of the water outlet 5 are equal. One end of the valve body 3, which is far away from the valve cover 1, is provided with a mounting groove 10 which is coaxially arranged with the water outlet guide groove 7, the mounting groove 10 is communicated with the water outlet guide groove 7, and the diameter of the mounting groove 10 is larger than or equal to the diameter of the water outlet guide groove 7.
An adjusting component 11 is further arranged in the mounting groove 10, and the adjusting component 11 is mainly used for controlling the size of a water outlet flow channel of the valve body 3, wherein the water outlet flow channel is a flow channel formed by communicating the water outlet guide groove 7 with the water outlet 5. The adjusting component 11 is a adjusting column 111 screwed in the mounting groove 10, the diameter of the adjusting column 111 is greater than or equal to the diameter of the water outlet guide groove 7, in this embodiment, the adjusting column 111 and the water outlet guide groove 7 are coaxially arranged, and the diameter of the adjusting column 111 is equal to the diameter of the water outlet guide groove 7. One end of the adjusting column 111 facing the water outlet guide groove 7 can be embedded into the water outlet guide groove 7 to seal the water outlet guide groove 7.
The mounting groove 10 is embedded with a sealing ring 12, the sealing ring is arranged around the outer side wall of the adjusting column 111, the sealing ring 12 can be a packing seal, the mounting groove 10 is also connected with a compression ring in a threaded manner, and the compression ring is positioned on one side of the sealing ring 12 far away from the water outlet guide groove 7 and used for compressing the sealing ring 12, and the sealing is further enhanced through the sealing ring 12. The diameter of the end of the adjusting column 111 near the water outlet guide groove 7 gradually decreases toward the direction near the membrane 2, in this embodiment, the end of the adjusting column 111 near the water outlet guide groove 7 is spherical, and in actual operation, the adjusting column may be tapered. The adjusting column 111 is used for blocking the size of the communicating part of the water outlet guide groove 7 and the water outlet 5 towards one end of the membrane 2, so that the flow passage at the communicating part of the water outlet guide groove 7 and the water outlet 5 is adjusted, and the adjustment of the water outlet flow passage is realized. When the adjusting column 111 extends towards one end of the membrane 2 and passes through the water outlet 5 and is propped into the water outlet guide groove 7, the adjusting column 111 can seal the water outlet guide groove 7, so that the water outlet channel is closed.
The working principle of the embodiment is as follows:
with the above back pressure valve, fluid enters from the back pressure valve water inlet 4, is blocked by the diaphragm 2, and thus the fluid generates upward pressure on the diaphragm 2. When the pressure is large enough, the spring mechanism 8 is compressed, the fluid props up the diaphragm 2 to form a channel, and the fluid flows out of a water outlet channel formed by the water outlet guide groove 7 of the back pressure valve and the water outlet 5.
When the valve body 3 vibrates more strongly, the water outlet flow passage can be reduced by the adjusting component 11. When the fluid passes through the water outlet channel, the water outlet channel is reduced due to the adjusting component 11, so that the discharge speed of the water outlet 5 is slowed down. At this time, after the spring mechanism 8 is compressed by the fluid accumulation on one side of the water inlet 4 to push the diaphragm 2 open, the discharge speed of the water outlet 5 is slowed down, so that the pressure drop value between the water inlet and the water outlet of the valve body 3, which is close to the diaphragm 2, is reduced, the reset frequency of the spring mechanism 8, which is abutted against the diaphragm 2, is greatly reduced, the impact frequency of the diaphragm 2 on the valve body 3 is reduced, and the damping effect is achieved.
In addition, in an ideal state, when the flow channel is adjusted to a proper size, when the supplementing speed of the water inlet 4 and the draining speed are equal, the fluid drained from the water outlet 5 is supplemented in time at the water inlet 4, so that the pressure drop at the diaphragm 2 is smaller, the spring mechanism 8 can be kept in a compressed state, and the vibration of the valve body 3 caused by the impact of the diaphragm 2 on the valve body 3 due to the spring mechanism 8 is reduced, and the damping effect is further realized.
In addition, when the outlet flow passage is closed by screwing the adjusting column 111, the outlet flow passage is completely closed at the moment, so that the back pressure valve can also be used as a stop valve, and the effect of dual purposes of one valve is achieved.
Embodiment two:
as shown in fig. 3 and 4, the damping back pressure valve is different from the first embodiment in the structure of the adjusting assembly 11.
As shown in fig. 3 and 4, the mounting groove 10 includes a mounting section and a fastening section, the mounting section is provided in a square groove, the fastening section is provided in a threaded section, and the threaded section is provided at one end of the mounting section far from the valve cover 1 and is larger than the mounting section. The adjusting assembly 11 includes a mounting portion 112 provided in a mounting section of the mounting groove 10, an adjusting ball 113 rotatably coupled in the mounting portion 112, and a rotating portion 114 fixedly coupled to the adjusting ball 113 and rotatably coupled to the mounting portion 112. The end of the mounting part 112 far away from the valve body 3 is also in threaded connection with a locking ring 13, the locking ring 13 is in threaded connection with the fastening section of the mounting groove 10, and the locking ring 13 is abutted against the end of the mounting part 112 far away from the diaphragm 2 for tightly fixing the mounting part 112.
As shown in fig. 3 and 5, the mounting portion 112 is square, and the mounting portion 112 is located at the mounting section of the mounting groove 10 and is blocked at the junction between the water outlet 5 and the water outlet guide groove 7. The side wall of the installation part 112, which is close to the water outlet guide groove 7 and the water outlet 5, is provided with guide grooves 14, the two guide grooves 14 are correspondingly communicated with the water outlet guide groove 7 and the water outlet 5, and the two guide grooves 14 are communicated. The diameter of the diversion trench 14 is the same as that of the corresponding water outlet guide trench 7 and the water outlet 5, the diversion trench 14 close to the water outlet guide trench 7 is coaxially arranged with the water outlet guide trench 7, and the diversion trench 14 close to the water outlet 5 is coaxially arranged with the water outlet 5. In this embodiment, the two diversion trenches 14 are vertically arranged. The mounting portion 112 includes a first splicing portion 1121 and a second splicing portion 1122, and the splicing surfaces of the first splicing portion 1121 and the second splicing portion 1122 are arranged by the rotation axis of the adjustment ball 113, in this embodiment, the first splicing portion 1121 and the second splicing portion 1122 are symmetrically arranged. In actual use, the splicing surfaces of the first splicing part 1121 and the second splicing part 1122 can be further provided with a layer of rubber pad 15, and the first splicing part 1121 and the second splicing part 1122 can squeeze the rubber pad 15 to deform, so that the sealing performance of the splicing seam of the mounting part 112 is better.
The adjusting ball 113 is made of plastic, and the outer side wall of the adjusting ball 113 is abutted against the inside of the mounting part 112. The rotation axis of the adjusting ball 113 is overlapped with the axis of the water outlet guide groove 7. The diameter of the adjusting ball 113 is larger than that of the water outlet guide groove 7, the adjusting ball 113 is correspondingly provided with a guide hole 16, two ends of the guide hole 16 are correspondingly communicated with the two guide grooves 14, two ends of the guide hole 16 are correspondingly arranged with the guide grooves 14, and the diameter of the guide hole 16 is the same as that of the guide grooves 14.
The axis of rotation portion 114 sets up with the axis coincidence of play water guide slot 7, and installation department 112 is worn out to the direction of keeping away from diaphragm 2 to rotation portion 114, and rotation portion 114 corresponds to pass locking ring 13 setting, and rotation portion 114 is including setting up in rotation portion 114 and keep away from the dwang 17 of valve gap 1 one end, and dwang 17 is located the locking ring 13 and is kept away from the one side of installation department 112, and dwang 17 is located mounting groove 10. The rotating part 114 is used for controlling the flow guiding holes 16 of the adjusting ball 113 to be staggered or communicated with the two flow guiding grooves 14. One end of the valve body 3, which is far away from the valve cover 1, is provided with an indicator 18, and the indicator 18 is a groove. When the rotating lever 17 is directed to the indicator 18, the indicator 18 may be used to indicate that the deflector aperture 16 is in perfect alignment with the two deflector slots 14.
The working principle of the embodiment is as follows:
when the size of the water outlet flow channel needs to be adjusted, the diversion hole 16 and the diversion trench 14 on one side of the water outlet 5 can form dislocation through rotating the rotating part 114, so that the effect of adjusting the size of the water outlet flow channel is realized, and when the diversion hole 16 and the diversion trench 14 are completely staggered, the water outlet flow channel is in a complete cut-off state, so that the back pressure valve can be used as a stop valve.
The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (8)
1. The utility model provides a shock attenuation backpressure valve, includes valve gap (1), diaphragm (2) and valve body (3) that connect gradually, be provided with water inlet (4) and delivery port (5) on valve body (3), one end that valve body (3) are close to valve gap (1) is provided with water inlet guide slot (6) and play water guide slot (7) that correspond to switch on with water inlet (4) and delivery port (5), be provided with on valve gap (1) and be used for supporting tight diaphragm (2) in play water guide slot (7) spring mechanism (8) that make valve body (3) close, its characterized in that: an installation groove (10) which is coaxially arranged and communicated with the water outlet guide groove (7) is formed in one end, far away from the valve cover (1), of the valve body (3), an adjusting component (11) used for controlling the size of a water outlet flow channel of the valve body (3) is further arranged in the installation groove (10), the adjusting component (11) comprises an adjusting column (111) which is connected in the installation groove (10) in a threaded mode, one end, facing the diaphragm (2), of the adjusting column (111) is used for blocking the communication size between the water outlet guide groove (7) and the water outlet (5), or the adjusting component (11) comprises an installation part (112) arranged in the installation groove (10), an adjusting ball (113) which is connected in the installation part (112) in a rotating mode, and a rotating part (114) which is fixedly connected with the adjusting ball (113) and is connected with the installation part (112) in a rotating mode; the installation part (112) is blocked at the junction of the water outlet (5) and the water outlet guide groove (7), the installation part (112) is close to the water outlet guide groove (7) and the side wall of the water outlet (5) is provided with guide grooves (14), the two guide grooves (14) are correspondingly communicated with the water outlet guide groove (7) and the water outlet (5), and the two guide grooves (14) are communicated; the adjusting ball (113) is correspondingly provided with a diversion hole (16) communicated with the two diversion trenches (14); the rotating part (114) penetrates out of the mounting part (112) towards the direction far away from the membrane (2) and is used for controlling the flow guide holes (16) of the adjusting balls (113) to be staggered or communicated with the two flow guide grooves (14).
2. The shock absorbing backpressure valve of claim 1, wherein: the water outlet guide groove (7) is in a cylindrical shape, and the diameter of the adjusting column (111) is equal to or larger than the diameter of the water outlet guide groove (7).
3. The shock absorbing backpressure valve of claim 1, wherein: the diameter of one end of the adjusting column (111) close to the water outlet guide groove (7) gradually becomes smaller towards the direction close to the membrane (2).
4. The shock absorbing backpressure valve of claim 1, wherein: the water outlet guide groove (7) is in a cylindrical shape, the diameter of the adjusting ball (113) is larger than that of the water outlet guide groove (7), and the diameter of the guide hole (16) is the same as that of the water outlet guide groove (7) and the guide groove (14).
5. The shock absorbing backpressure valve of claim 4, wherein: the adjusting ball (113) is made of plastic.
6. The shock absorbing backpressure valve of claim 4, wherein: the installation part (112) comprises a first splicing part (1121) and a second splicing part (1122), and the splicing surfaces of the first splicing part (1121) and the second splicing part (1122) are arranged through the rotation axis of the adjusting ball (113).
7. The shock absorbing backpressure valve of claim 4, wherein: one end of the mounting part (112) far away from the valve body (3) is also in threaded connection with a locking ring (13) used for tightly supporting and fixing the mounting part (112), and the rotating part (114) correspondingly penetrates through the locking ring (13).
8. The shock absorbing backpressure valve of claim 4, wherein: the rotary part (114) comprises a rotary rod (17) arranged at one end, far away from the valve cover (1), of the rotary part (114), the rotary rod (17) is positioned in the mounting groove (10), and an indicator (18) used for indicating alignment of the diversion hole (16) and the two diversion trenches (14) is arranged at one end, far away from the valve cover (1), of the valve body (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910944313.5A CN110578806B (en) | 2019-09-30 | 2019-09-30 | Damping back pressure valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910944313.5A CN110578806B (en) | 2019-09-30 | 2019-09-30 | Damping back pressure valve |
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| CN110578806A CN110578806A (en) | 2019-12-17 |
| CN110578806B true CN110578806B (en) | 2024-04-05 |
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| CN201910944313.5A Active CN110578806B (en) | 2019-09-30 | 2019-09-30 | Damping back pressure valve |
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| CN113236844B (en) * | 2021-06-17 | 2022-01-11 | 江苏宏博机械制造有限公司 | Extraction cauldron export is joined in marriage back pressure valve device convenient to adjustment pressure |
Citations (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB681777A (en) * | 1950-10-05 | 1952-10-29 | Elliot Adolph Meller | Improvements in or relating to gas-burning pyrophoric lighters |
| CN2175332Y (en) * | 1993-10-20 | 1994-08-24 | 毛通寿 | Water valve |
| US5950924A (en) * | 1997-07-17 | 1999-09-14 | Smc Kabushiki Kaisha | Suck back valve |
| WO2001013017A2 (en) * | 1999-08-17 | 2001-02-22 | Carlson Bengt A | Pressure independent control valve |
| JP2001227656A (en) * | 2000-02-18 | 2001-08-24 | Nippon Carbureter Co Ltd | Pressure reducing valve |
| US6332475B1 (en) * | 1997-02-21 | 2001-12-25 | Mastavalve Pty. Ltd. | Filling stop valve |
| JP2002039426A (en) * | 2000-07-27 | 2002-02-06 | Keihin Corp | Valve device |
| KR20030057793A (en) * | 2001-12-29 | 2003-07-07 | 주식회사 경동보일러 | Noise Reduction Structure of Solenoid Valve |
| CN2570563Y (en) * | 2002-09-09 | 2003-09-03 | 宝阀精密工业有限公司 | Combined type pressure relief valve |
| JP2007046725A (en) * | 2005-08-11 | 2007-02-22 | Asahi Organic Chem Ind Co Ltd | Opening and closing valve with flow channel |
| TW200722946A (en) * | 2005-11-14 | 2007-06-16 | Ham Let Motoyama Japan Ltd | Fluid control unit, pressure control valve, and pressure control method |
| JP2010133480A (en) * | 2008-12-04 | 2010-06-17 | Sekisui Chem Co Ltd | Diaphragm valve |
| CN101825082A (en) * | 2010-05-12 | 2010-09-08 | 高新区益腾净水设备研发中心 | Constant pressure structure of supercharging pump |
| CN201575191U (en) * | 2009-12-04 | 2010-09-08 | 普耐美流体系统有限公司 | Valve used as either foot valve or safety valve |
| CN202100312U (en) * | 2011-06-20 | 2012-01-04 | 烟台杰瑞石油装备技术有限公司 | Engine exhaust gas flow control device |
| KR101290283B1 (en) * | 2013-02-14 | 2013-07-26 | 조상현 | Control valve |
| CN204554013U (en) * | 2015-02-17 | 2015-08-12 | 陈山石 | Water servovalve |
| JP2017083981A (en) * | 2015-10-26 | 2017-05-18 | フシマン株式会社 | Self-operated adjustment valve |
| CN206458869U (en) * | 2016-12-26 | 2017-09-01 | 刘尚田 | A kind of wheel valve assembly device in the wheel of deflation structure |
| CN206874879U (en) * | 2017-04-21 | 2018-01-12 | 福建省三鲸消防器材有限公司 | A kind of barrier film for pressure-reducing valve |
| CN107869598A (en) * | 2016-09-28 | 2018-04-03 | 宁波速威特机电科技有限公司 | A kind of Pneumatic piston diaphragm valve |
| US9964220B1 (en) * | 2017-10-23 | 2018-05-08 | Useong Electro-Mechanics Co., Ltd. | Electromagnetic water supply valve |
| CN208619710U (en) * | 2018-08-29 | 2019-03-19 | 山西德盈新能源科技有限公司 | A kind of gas-fired equipment pressure reducing valve |
| KR101978226B1 (en) * | 2017-11-23 | 2019-05-14 | 하이드로텍(주) | Apparatus for reducing fluid shock of sequence valve |
| CN208997389U (en) * | 2018-04-30 | 2019-06-18 | 纽珀有限公司 | Valve operating gear |
| CN210566349U (en) * | 2019-09-30 | 2020-05-19 | 上海龙猛机械有限公司 | Shock attenuation back pressure valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3990567B2 (en) * | 2001-12-18 | 2007-10-17 | 大日本スクリーン製造株式会社 | Diaphragm valve, substrate processing unit and substrate processing apparatus |
| SE526804C2 (en) * | 2004-03-26 | 2005-11-08 | Stt Emtec Ab | valve device |
| FI126989B (en) * | 2015-03-16 | 2017-09-15 | Metso Flow Control Oy | USING FLUID VALVE ASSEMBLY, PROCESS VALVE INSTALLATION AND USING FLUID VALVE ASSEMBLY IN PROCESS VALVE CONTROL |
-
2019
- 2019-09-30 CN CN201910944313.5A patent/CN110578806B/en active Active
Patent Citations (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB681777A (en) * | 1950-10-05 | 1952-10-29 | Elliot Adolph Meller | Improvements in or relating to gas-burning pyrophoric lighters |
| CN2175332Y (en) * | 1993-10-20 | 1994-08-24 | 毛通寿 | Water valve |
| US6332475B1 (en) * | 1997-02-21 | 2001-12-25 | Mastavalve Pty. Ltd. | Filling stop valve |
| US5950924A (en) * | 1997-07-17 | 1999-09-14 | Smc Kabushiki Kaisha | Suck back valve |
| WO2001013017A2 (en) * | 1999-08-17 | 2001-02-22 | Carlson Bengt A | Pressure independent control valve |
| JP2001227656A (en) * | 2000-02-18 | 2001-08-24 | Nippon Carbureter Co Ltd | Pressure reducing valve |
| JP2002039426A (en) * | 2000-07-27 | 2002-02-06 | Keihin Corp | Valve device |
| KR20030057793A (en) * | 2001-12-29 | 2003-07-07 | 주식회사 경동보일러 | Noise Reduction Structure of Solenoid Valve |
| CN2570563Y (en) * | 2002-09-09 | 2003-09-03 | 宝阀精密工业有限公司 | Combined type pressure relief valve |
| JP2007046725A (en) * | 2005-08-11 | 2007-02-22 | Asahi Organic Chem Ind Co Ltd | Opening and closing valve with flow channel |
| TW200722946A (en) * | 2005-11-14 | 2007-06-16 | Ham Let Motoyama Japan Ltd | Fluid control unit, pressure control valve, and pressure control method |
| JP2010133480A (en) * | 2008-12-04 | 2010-06-17 | Sekisui Chem Co Ltd | Diaphragm valve |
| CN201575191U (en) * | 2009-12-04 | 2010-09-08 | 普耐美流体系统有限公司 | Valve used as either foot valve or safety valve |
| CN101825082A (en) * | 2010-05-12 | 2010-09-08 | 高新区益腾净水设备研发中心 | Constant pressure structure of supercharging pump |
| CN202100312U (en) * | 2011-06-20 | 2012-01-04 | 烟台杰瑞石油装备技术有限公司 | Engine exhaust gas flow control device |
| KR101290283B1 (en) * | 2013-02-14 | 2013-07-26 | 조상현 | Control valve |
| CN204554013U (en) * | 2015-02-17 | 2015-08-12 | 陈山石 | Water servovalve |
| JP2017083981A (en) * | 2015-10-26 | 2017-05-18 | フシマン株式会社 | Self-operated adjustment valve |
| CN107869598A (en) * | 2016-09-28 | 2018-04-03 | 宁波速威特机电科技有限公司 | A kind of Pneumatic piston diaphragm valve |
| CN206458869U (en) * | 2016-12-26 | 2017-09-01 | 刘尚田 | A kind of wheel valve assembly device in the wheel of deflation structure |
| CN206874879U (en) * | 2017-04-21 | 2018-01-12 | 福建省三鲸消防器材有限公司 | A kind of barrier film for pressure-reducing valve |
| US9964220B1 (en) * | 2017-10-23 | 2018-05-08 | Useong Electro-Mechanics Co., Ltd. | Electromagnetic water supply valve |
| KR101978226B1 (en) * | 2017-11-23 | 2019-05-14 | 하이드로텍(주) | Apparatus for reducing fluid shock of sequence valve |
| CN208997389U (en) * | 2018-04-30 | 2019-06-18 | 纽珀有限公司 | Valve operating gear |
| CN208619710U (en) * | 2018-08-29 | 2019-03-19 | 山西德盈新能源科技有限公司 | A kind of gas-fired equipment pressure reducing valve |
| CN210566349U (en) * | 2019-09-30 | 2020-05-19 | 上海龙猛机械有限公司 | Shock attenuation back pressure valve |
Non-Patent Citations (3)
| Title |
|---|
| 供水系统中阀门故障分析;黎慧青;;科技创业月刊(第06期);205-206 * |
| 双筒式液压减振器节流孔气穴现象和噪声分析;安成光;曹阳;张建武;;上海交通大学学报;20180328(第03期);49-56 * |
| 黎慧青 ; .供水系统中阀门故障分析.科技创业月刊.2012,(第06期),205-206. * |
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