CN200999896Y - Vibration proof voltage-stabilizing pressure-limiting valve - Google Patents
Vibration proof voltage-stabilizing pressure-limiting valve Download PDFInfo
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- CN200999896Y CN200999896Y CNU2007201180312U CN200720118031U CN200999896Y CN 200999896 Y CN200999896 Y CN 200999896Y CN U2007201180312 U CNU2007201180312 U CN U2007201180312U CN 200720118031 U CN200720118031 U CN 200720118031U CN 200999896 Y CN200999896 Y CN 200999896Y
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- controlling rod
- voltage stabilizing
- valve body
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Abstract
A vibration proof constant pressure limiting valve. The utility model is characterized in that a damping element is arranged in the inner cavity of the valve body of the pressure limiting valve, and the damping element is matched with the controlling rod component and the plugging part arranged in the valve body of the pressure limiting valve to block the water plugging opening of the valve body passage, to control the moving speed of the controlling rod component and the pressure limiting membrane connected with the above components during the plugging and the opening process, and therefore to prevent the vibration of the pressure limiting valve. The damping element is a separating part with holes arranged between the water plugging opening and the pressure limiting membrane, to enable the fluid exerted on the pressure limiting membrane to be absorbed in or squeezed out from the narrow passage, to limit the moving speed of the pressure limiting membrane; the damping element can also be a sleeve component arranged in the valve body to match the controlling rod component, to enable the fluid exerted on the pressure limiting membrane to be absorbed in or squeezed out from the narrow slot, to limit the moving speed of the pressure limiting membrane. The utility model can reduce or eliminate the vibration source, lengthen the service life of the pressure limiting valve, improve the working condition of the pressure limiting valve and enable the pipeline fluid pressure to be extremely stable.
Description
Technical field
The utility model relates to a kind of pressure-limit valve that is used on the fluid circuits such as gas or liquid, be specifically related to a kind of prevent pressure-limit valve use in the pressure-limit valve of valve body vibration and pressure shake.
Background technique
In the prior art, if will be controlled at the hydrodynamic pressure on the fluid circuit in certain pressure range, need a pressure-limit valve be set at the pipeline front end could realize, existing pressure-limit valve structure comprises a valve body, valve body is provided with water outlet and water intake, a water shutoff mouth is arranged on the passage between water outlet and the water intake, but at the adaptive controlling rod assembly that a shutoff water shutoff mouth is arranged of the feed-water end of water shutoff mouth, the controlling rod assembly passes this water shutoff mouth fixedlys connected with the pressure limiting diaphragm unit, and pressure limiting diaphragm unit top is provided with spring.In actual the use, when the hydrodynamic pressure of valve inleting water end is very high, fluid is also very high by the pressure of water shutoff mouth, so the pressure that fluid acts on the pressure limiting membrane module is also very big, when this pressure during greater than pressure limiting diaphragm unit upper spring power, to drive the controlling rod assembly fast and move, closeouts can be sealed the water shutoff mouth on the controlling rod assembly.The fluid that closes behind the valve continues to flow out, and hydrodynamic pressure will descend this moment, and the pressure that acts on the pressure limiting membrane module also descends, the restoring force of spring acts on power on the diaphragm greater than water, and the controlling rod assembly is moved down, and water shutoff is salty newly opens, go round and begin again, thus the pressure limiting of realization fluid circuit.But this process can cause very large valve body vibration and pressure shake, and pressure-limit valve is produced infringement, reduces its working life, can bring noise simultaneously.Though prior art has been carried out multiple improvement to this kind phenomenon at present, produces little effect.
The model utility content
Technical problem to be solved in the utility model is at above-mentioned prior art problem, on the basis of existing pressure-limit valve structure, improve, but provide a kind of pressure-limit valve structure of vibrationproof voltage stabilizing, can prolong the working life of pressure-limit valve, improve the working condition of pressure-limit valve and make the pipeline hydrodynamic pressure highly stable.
The technological scheme that the utility model proposed is:
A kind of vibrationproof voltage stabilizing pressure-limit valve, comprise valve body, place the interior controlling rod assembly of valve body and be fixed in pressure limiting diaphragm unit on the valve body, described valve body is provided with water outlet and water intake, have between water outlet and the water intake one can be by the water shutoff mouth of controlling rod assembly shutoff, controlling rod passes this water shutoff mouth fixedlys connected with the pressure limiting diaphragm unit, spring is equipped with in described pressure limiting diaphragm unit top, it is characterized in that: at described pressure-limit valve body cavity one damping member is set, this damping member be located at the pressure-limit valve valve body in be used for shutoff valve channel water shutoff mouth the controlling rod assembly match.
Wherein, described damping member is for being arranged between water shutoff mouth and the pressure limiting diaphragm, can holding the separator with holes that controlling rod passes through; Or for being located in the pressure-limit valve valve body and shroud member controlling rod assembly fit.
On described separator or the shroud member, be provided with the water port or/and the fluid that makes that is loaded on this water port is made the one-way valve of one-way flow.
On described valve body waterexit end or rising pipe, also be provided with a voltage stabilizing element that contains the air receiving cavity, this voltage stabilizing element or for being arranged at housing structure or the air bag that to seal air on valve body waterexit end or the rising pipe up for safekeeping; Or be provided with the housing that is coated on pressure-limit valve, and the water intake of its pressure-limit valve is communicated with the voltage stabilizing element water intake, and water outlet is communicated with voltage stabilizing element housing inner chamber;
In described valve body, also can be provided with and can move by the controlling rod assembly and change the structure of damming of flow, this structure of damming is cone or the curved surface cone adaptive with the water shutoff mouth that is arranged on controlling rod or the closeouts.
In addition, can be filled with filter material section in the described voltage stabilizing element, or described voltage stabilizing element is divided into two cavitys by dividing plate, wherein is filled with filtering material in the cavity.
The beneficial technical effects of the utility model is: by the damping member that matches with controlling rod assembly and closeouts in the setting of pressure-limit valve body cavity, can make the water shutoff mouth in sealing and opening process, the movement velocity of controlling rod assembly and closeouts or the pressure limiting diaphragm that links to each other with above-mentioned member obtains restriction, shakes to reduce or eliminate pressure-limit valve vibration and pressure.Simultaneously,, can reduce to act on the pressure surge of fluid moment of pressure limiting diaphragm, further eliminate the pressure-limit valve vibration source by on pressure-limit valve waterexit end or rising pipe, voltage stabilizing element being set.In addition, also can pass through controlling rod assembly or closeouts architecture advances, make its formation structure of damming, make closeouts when sealing water shutoff mouth, the flow that flows into from the water shutoff mouth is gradual variation, can change the pressure limiting principle of the pressure-limit valve of original technology, no longer needs to realize by the switching of water shutoff mouth, but the variation of the actual bore by the water shutoff mouth realizes, can eliminate pressure-limit valve vibration and pressure fully and shake.
Description of drawings
Fig. 1 is the utility model structure embodiment one schematic representation;
Fig. 2 is the utility model structure embodiment two schematic representation;
Fig. 3 is the utility model structure embodiment three schematic representation;
Fig. 4 is the utility model structure embodiment four schematic representation.
Embodiment
In existing pressure-limit valve structure, when the hydrodynamic pressure that enters the valve inleting water end is very high, fluid is also very high by the pressure of water shutoff mouth, the pressure that fluid acts on the pressure limiting diaphragm is also very big, when this pressure during greater than pressure limiting diaphragm upper spring power, to drive closeouts fast moving on the controlling rod assembly, sealing water shutoff mouth.If the fluid that closes behind the valve continues to flow out, hydrodynamic pressure will descend, and the pressure that acts on the pressure limiting film also descends, the spring controlling rod assembly of will upspringing, and water shutoff is salty newly opens, go round and begin again, thus the pressure limiting of realization fluid circuit.But this process can cause very large valve body vibration and pressure shake, when closeouts during near the water shutoff mouth, can produce a very large shutoff power (the inside and outside differential pressure Δ p of the area s of closeouts * closeouts water shutoff mouth), when closeouts breaks away from the water shutoff mouth, this shutoff power can instantaneously disappear not only. this unexpected generation but also the power that suddenly disappears, be an important vibration source of pressure limiting threshold, thereby brought the vibration and the sound of valve body.Therefore, have only reduction or eliminate this shutoff power instantaneous variation value, perhaps reduce the travelling speed of controlling rod assembly when the water shutoff mouth is closed and opened, could prevent the vibration of pressure-limit valve effectively.
Based on above-mentioned theory, but the utility model provides a kind of pressure-limit valve of vibrationproof voltage stabilizing, it is at described pressure-limit valve body cavity one damping member to be set, this damping member can be located at the pressure-limit valve valve body in be used for shutoff valve channel water shutoff mouth controlling rod assembly and closeouts match, to control the water shutoff mouth in sealing and opening process, the travelling speed of controlling rod assembly and closeouts or the pressure limiting diaphragm that links to each other with above-mentioned member, thus the pressure-limit valve vibration prevented.Its described damping member is the separator with holes that is arranged between water shutoff mouth and the pressure limiting diaphragm, the controlling rod assembly passes through this separator and links to each other with the pressure limiting diaphragm unit, make the fluid that acts on the pressure limiting diaphragm need to suck or extrude from narrow passage, with the travelling speed of restriction pressure limiting diaphragm, and then can limit the speed of the controlling rod assembly shutoff water shutoff mouth that is attached thereto.Damping member also can be is located in the pressure-limit valve valve body and shroud member controlling rod assembly fit, controlling rod assembly lower end is placed in this shroud member, do moving up and down, the fluid that acts on the controlling rod assembly needs to extrude or suck the slit narrow between both cooperate.Above-mentioned dual mode all can make the controlling rod assembly produce damping force in moving process, thereby makes the pressure limiting diaphragm unit slower together with controlling rod assembly velocity of displacement, so can eliminate pressure-limit valve vibration and pressure shake, has realized the purpose of this utility model.
When the pressure limiting diaphragm unit moves with the controlling rod assembly, owing to must make fluid from aperture, extrude or suck, in order to prevent that hydrodynamic pressure is after moment is delivered to pressure-limit valve, the utility model also designs the one-way valve that several unidirectional unlatchings and closure are arranged on damping member, realize unidirectional damping, make the controlling rod assembly slowly open quick-make together with closeouts.
Further as the utility model, on described valve body waterexit end or rising pipe, also be provided with a voltage stabilizing element that contains the air receiving cavity.Because the being compressed property of air, make valve interior fluid pressure when moment produces bigger variation, the waterexit end fluid also produces a bigger active force to air, air just can be used as the body that assigns of a variation in pressure, digest and absorb the process of this variation, like this, the pressure of the suffered fluid of pressure limiting diaphragm will slowly change, the controlling rod assembly also will slowly move with the slow variation of this pressure, and can not produce vibration, thereby reduce to act on the pressure surge of fluid moment of pressure limiting diaphragm, can thoroughly eliminate the vibration and the pressure jitter problem of pressure-limit valve.
The instant of the closeouts sealing water shutoff mouth on pressure-limit valve inner control bar assembly, if still be in opening state behind the valve, the pressure of liquid reduces to zero from voltage limiting value moment of pressure-limit valve, also moment reduces to zero to the suffered hydrodynamic pressure of pressure limiting diaphragm, spring flicks closeouts, valve opening rapidly by the controlling rod assembly.Fluid flows into rapidly, and high-pressure liquid is oppressed pressure limiting diaphragm gang control lever assembly again, makes closeouts seal the water shutoff mouth rapidly, goes round and begins again, and this is the Another reason of pressure-limit valve vibration and pressure shake.Therefore, the utility model also is provided with on described controlling rod assembly or closeouts and can is moved and changed the structure of damming of water shutoff mouth flow by controlling rod, makes closeouts when sealing water shutoff mouth, and the flow that flows into from the water shutoff mouth is gradual variation.Therefore, shutoff power can produce gradual change along with the displacement of controlling rod assembly, and can not produce suddenly or suddenly disappear, so just eliminated a vibration source again, and this structure can make the real area of the easier control water shutoff of the displacement mouth of controlling rod assembly, make the balance of the easier realization turnover of valve body fluid, that is to say, can change the pressure limiting principle of the pressure-limit valve of original technology, no longer need to realize by the switching of water shutoff mouth, but the variation of the actual bore by the water shutoff mouth appears suddenly, thereby eliminates the shake that pressure-limit valve vibration and variation in pressure cause greatly.
In conjunction with the accompanying drawings the utility model structure is described further according to embodiment below.
Embodiment one:
Fig. 1 has showed the embodiment one that the utility model structure is designed according to said method.As shown in Figure 1, the utility model structure comprises valve body 2, place valve body 2 interior controlling rod assembly 3 and pressure limiting diaphragm unit 4, wherein pressure limiting diaphragm arrangement is on this assembly, two ends are fixed on the valve body 2, offer water intake 1 and water outlet 7 on the described valve body 2, passage between water intake 1 and the water outlet 7 is provided with water shutoff baffle plate 11, offer water shutoff mouth 6 on this baffle plate, controlling rod assembly 3 one ends place below this water shutoff mouth 6, the other end passes this water shutoff mouth 6 fixedlys connected with pressure limiting diaphragm unit 4, and the end face that contacts with water shutoff mouth 6 on the controlling rod assembly 3 is equipped with closeouts 12, when controlling rod assembly 3 moves up, closeouts 12 can be sealed water shutoff mouth 6, the buffer fluid passage.Described pressure limiting diaphragm unit 4 tops are equiped with spring 5, are changed by the elastic force of this spring 5 and the pressure reduction between the hydrodynamic pressure and control moving of controlling rod assembly 3.Between described water shutoff mouth 6 (or water shutoff baffle plate 11) and pressure limiting diaphragm unit 4, be provided with a separator 9, this separator 9 is a damping member, can be isolating plate, controlling rod assembly 3 passes through these separator 9 backs and is connected with pressure limiting diaphragm unit 4, and separator 9 is fixed on the valve body 2.After fluid entered pressure-limit valve, if its pressure is lower than the rating value of pressure-limit valve, fluid acted on the precompressed elastic force that pressure on the pressure limiting diaphragm unit 4 is lower than spring 5, can't force controlling rod assembly 3 and closeouts 12 sealing water shutoff mouths 6, and fluid flows out from water outlet 7; If hydrodynamic pressure is higher than the rating value of pressure-limit valve, fluid acts on the precompressed elastic force that pressure on the pressure limiting diaphragm unit 3 is higher than spring 5, will force controlling rod assembly 3 and closeouts 12 sealing water shutoff mouths 6.At this moment, if water outlet 7 is in opening state, then pressure descends, and spring 5 will flick closeouts 12, and the moment of closeouts 12 sealing water shutoff mouths 6, if fluid continues to flow out from water outlet 7, the waterexit end hydrodynamic pressure can descend.If fluid is a liquid, pressure meeting moment vanishing, when closeouts 12 sealings or unlatching water shutoff mouth 6, the shutoff power (difference force) that water shutoff plate washer 11 inside and outside differential pressures act on the closeouts 12 can produce bigger variation, instantaneous generation or disappearance shutoff power when this closeouts 12 is toward or away from water shutoff mouth 6, the bigger variation of fluid can be brought, the vibration of valve will be caused.Owing to be provided with separator 9, the fluid isolation of pressure limiting diaphragm unit 4 and fluid passage, only leaving the fine pore contacts with fluid, the variation of pressure limiting diaphragm unit 4 acting chamber fluid displacements is very little, during 4 motions of pressure limiting diaphragm unit, must from the fine pore, extrude fluid or suck, thereby produce damping force, make pressure limiting diaphragm unit 4 can only slowly drive 3 motions of controlling rod assembly.Like this, the bigger variation that the shutoff power (difference force) of water shutoff mouth 6 is produced can not cause the variation in pressure that acts on fluid on the pressure limiting diaphragm, and therefore, pressure-limit valve can not produce vibration.
In the present embodiment structure, on separator 9, also offer one or more water ports, can make the fluid that enters pressure limiting diaphragm unit 4 acting chambers more mild.Perhaps, the one-way valve 13 that can only upwardly open, can hold the liquid one-way flow adaptive on aperture, like this, the unidirectional damping effect can only be played in the water port on the separator 9, when pressure limiting diaphragm unit 4 drives controlling rod assembly 3 fast to top offset, can quick closedown water shutoff mouth 6, prevent that fluid high-pressure is after moment is delivered to valve.This structure again can the limiter valve opening speed, and controlling rod assembly 3 is when bottom offset, and fluid can only be extruded from the hole of centre, and controlling rod assembly 3 and closeouts 12 can only slowly be opened downwards.
As shown in Figure 1, present embodiment also is provided with a voltage stabilizing element 8 that contains the air receiving cavity in described valve body 2 water outlets 7 positions, this voltage stabilizing element 8 may be sealed the housing structure or the air bag of air up for safekeeping, makes an integral body with pressure-limit valve, with the pressure surge of fluid moment of reducing to act on the pressure limiting diaphragm.Simultaneously, it is more steady that the air in the voltage stabilizing element 8 can make the pressure of valve body 2 waterexit ends.
As shown in Figure 1, present embodiment also is provided with in described valve body 2 and can be moved by controlling rod assembly 3 and change the structure of damming of flow, and this structure of damming is cone or the curved surface cone adaptive with water shutoff mouth 6 that is arranged on the controlling rod assembly.Because it is cone or curved surface cone that controlling rod assembly 3 passes through the structure of water shutoff mouth 6, therefore, when closeouts 12 is sealed gradually or is opened water shutoff mouth 6, the area that its fluid passes through is the trend of gradually changing, shutoff power (difference force) on the closeouts 12 also gradually changes so water shutoff plate washer 11 inside and outside differential pressures act on, and can not bring the flow equilibrium of the fluid of the vibration of pressure-limit valve and the convenient simultaneously turnover valve of pressure shake.
Embodiment two:
As shown in Figure 2, the utility model structure comprises valve body 22, place valve body 22 interior controlling rod assembly 23 and pressure limiting diaphragm unit 24, wherein pressure limiting diaphragm arrangement is on this assembly, two ends are fixed on the valve body 22, offer water intake 21 and water outlet 27 on the described valve body 22, passage between water intake 21 and the water outlet 27 is provided with water shutoff baffle plate 31, offer water shutoff mouth 26 on this baffle plate, controlling rod assembly 23 1 ends place below this water shutoff mouth 26, the other end passes this water shutoff mouth 26 fixedlys connected with pressure limiting diaphragm unit 24, the end face that contacts with water shutoff mouth 26 on the controlling rod assembly 23 is equipped with closeouts 32, when controlling rod assembly 23 moves up, closeouts 32 can be sealed water shutoff mouth 26, the buffer fluid passage.Described pressure limiting diaphragm unit 24 tops are equiped with spring 25, are changed by the elastic force of this spring 25 and the pressure reduction between the hydrodynamic pressure and control moving of controlling rod assembly 23.Below described controlling rod assembly 23, be provided with a shroud member 29, this shroud member 29 is a damping member, be fixed on the valve body 22, what be positioned at pressure-limit valve water intake 21 goes into the water channel place, can with controlling rod assembly 23 lower end fits, be about to controlling rod assembly 23 lower ends and place in the shroud member 29, controlling rod assembly 23 is done along these shroud member 29 axis and is moved up and down.The fluid that acts on the controlling rod assembly 23 needs to extrude or suck the slit narrow between both cooperate, to reach the purpose that delays controlling rod assembly 23 travelling speeds.Present embodiment also can offer the water port on shroud member 29 sidewalls, be provided with one-way valve 30 suitable with it and that can only unidirectionally open thereon, plays the unidirectional damping effect, and principle is with embodiment one.
As shown in Figure 2, present embodiment also is provided with a voltage stabilizing element 28 that contains the air receiving cavity in described valve body 22 water outlets 27 positions, different with embodiment one is that this voltage stabilizing element 28 is provided with the housing that is coated on pressure-limit valve, be about to pressure-limit valve and be loaded in the voltage stabilizing element 28, can make structure more compact.The water intake 21 of pressure-limit valve is communicated with voltage stabilizing element 28 water intakes, is same water inlet inlet, and pressure-limit valve water outlet 27 is communicated with voltage stabilizing element 28 housing inner chambers, and voltage stabilizing element 28 is provided with water outlet 33.
As shown in Figure 2, present embodiment also is provided with in described valve body 22 and can be moved by controlling rod assembly 23 and change the structure of damming of flow, and this structure of damming is cone or the curved surface cone adaptive with water shutoff mouth 26 that is machined on the closeouts 32.Closeouts 32 is threaded with controlling rod assembly 23, and this structural design is more convenient for processing.
Embodiment three:
As shown in Figure 3, the utility model structure comprises valve body 42, place valve body 42 interior controlling rod assembly 43 and pressure limiting diaphragm unit 44, wherein pressure limiting diaphragm arrangement is on this assembly, two ends are fixed on the valve body 42, offer water intake 41 and water outlet 47 on the described valve body 42, passage between water intake 41 and the water outlet 47 is provided with water shutoff baffle plate 51, offer water shutoff mouth 46 on this baffle plate, controlling rod assembly 43 1 ends place below this water shutoff mouth 46, the other end passes this water shutoff mouth 46 fixedlys connected with pressure limiting diaphragm unit 44, the end face that contacts with water shutoff mouth 46 on the controlling rod assembly 43 is equipped with closeouts 42, when controlling rod assembly 43 moves up, closeouts 52 can be sealed water shutoff mouth 46, the buffer fluid passage.Described pressure limiting diaphragm unit 44 tops are equiped with spring 45, are changed by the elastic force of this spring 45 and the pressure reduction between the hydrodynamic pressure and control moving of controlling rod assembly 43.Between described water shutoff mouth 46 (or water shutoff baffle plate 51) and pressure limiting diaphragm unit 44, be provided with a separator 49 with holes, this separator 49 is an isolating plate, and controlling rod assembly 43 passes through these separator 49 backs and is connected with pressure limiting diaphragm unit 44, and separator 49 is fixed on the valve body 42.
As shown in Figure 3, present embodiment is provided with a water cut-off protection valve in described valve body 42 water outlets 47 positions, can cut off the water route when the pressure-limit valve fault automatically.This water cut-off protection valve is a matured product on the market, is produced by the good rain water purification plant in Shenzhen Manufacturing Co., Ltd.Its structure comprises a valve body that is communicated with pressure-limit valve 55, place valve body 55 interior the controlling rod assembly 56 and the diaphragm unit 58 of cutting off the water supply, the diaphragm arrangement of wherein cutting off the water supply is on this assembly, two ends are fixed on the valve body 55, offer water outlet 57 on the described valve body 55, water intake and pressure-limit valve water outlet 47 are same passage, on pressure-limit valve water outlet 47 and the passage between the valve water outlet 57 of cutting off the water supply, be provided with water shutoff baffle plate 62, offer the water shutoff mouth on this baffle plate, the bottom surface is provided with the claw 61 that only resets, controlling rod assembly 56 1 ends place below this water shutoff mouth, and the other end passes this water shutoff mouth fixedlys connected with the diaphragm unit 58 of cutting off the water supply, and the end face that contacts with the water shutoff mouth on the controlling rod assembly 56 is equipped with closeouts 60, when controlling rod assembly 56 moves up, closeouts 60 can be sealed the water shutoff mouth, and the buffer fluid passage realizes cutting off the water supply function.
As shown in Figure 3, present embodiment also is provided with a voltage stabilizing element 48 that contains the air receiving cavity, and this voltage stabilizing element 48 is provided with the housing 54 that is coated on pressure-limit valve and cuts off the water supply valve, is about to pressure-limit valve and the valve of cutting off the water supply all is loaded in the voltage stabilizing element 48.The water intake 41 of pressure-limit valve is communicated with voltage stabilizing element 48 water intakes, is same water inlet inlet, and the valve water outlet 57 of cutting off the water supply is communicated with voltage stabilizing element 48 housing inner chambers, and voltage stabilizing element 48 is provided with water outlet 53.
As shown in Figure 3, present embodiment also also is provided with in pressure-limit valve valve body 42 and can be moved by controlling rod assembly 43 and change the structure of damming of flow, and this structure of damming is identical with embodiment two.
Embodiment four:
As shown in Figure 4, the utility model structure comprises valve body 72, place valve body 72 interior controlling rod assembly 73 and pressure limiting diaphragm unit 74, wherein pressure limiting diaphragm arrangement is on this assembly, two ends are fixed on the valve body 72, offer water intake 71 and water outlet 77 on the described valve body 72, passage between water intake 71 and the water outlet 77 is provided with water shutoff baffle plate 81, offer the water shutoff mouth on this baffle plate, controlling rod assembly 73 1 ends place below this water shutoff mouth 7, the other end passes this water shutoff mouth 7 fixedlys connected with pressure limiting diaphragm unit 74, the end face that contacts with the water shutoff mouth on the controlling rod assembly 73 is equipped with closeouts 82, when controlling rod assembly 73 moves up, closeouts 82 can be sealed the water shutoff mouth, the buffer fluid passage.Described pressure limiting diaphragm unit 74 tops are equiped with spring 75, are changed by the elastic force of this spring 75 and the pressure reduction between the hydrodynamic pressure and control moving of controlling rod assembly 73.Between described water shutoff mouth (or water shutoff baffle plate 81) and pressure limiting diaphragm unit 74, be provided with a separator 79, this separator 79 is an isolating plate, and controlling rod assembly 73 passes through these separator 79 backs and is connected with pressure limiting diaphragm unit 74, and separator 79 is fixed on the valve body 72.
As shown in Figure 4, present embodiment also is provided with a voltage stabilizing element 78 that contains the air receiving cavity, this voltage stabilizing element 78 is located at pressure-limit valve water outlet 77 positions, its water intake is communicated with pressure-limit valve water outlet 77, described voltage stabilizing element 78 comprises a housing 85, and its inner chamber is provided with a dividing plate 83 with holes, and the chamber filling also can have filter material section 84 within dividing plate was following, this filtering material can be ultrafiltration material or pp cotton or active carbon etc., makes fluid to be purified.On voltage stabilizing element 78, also be provided with water outlet 86.
The above embodiment has only expressed four kinds of mode of executions of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the utility model scope of patent protection should be as the criterion with claims.
Claims (10)
1, a kind of vibrationproof voltage stabilizing pressure-limit valve, comprise valve body, place the interior controlling rod assembly of valve body and be fixed in pressure limiting diaphragm unit on the valve body, described valve body is provided with water outlet and water intake, have between water outlet and the water intake one can be by the water shutoff mouth of controlling rod assembly shutoff, controlling rod passes this water shutoff mouth fixedlys connected with the pressure limiting diaphragm unit, spring is equipped with in described pressure limiting diaphragm unit top, it is characterized in that: at described pressure-limit valve body cavity one damping member is set, this damping member be located at the pressure-limit valve valve body in be used for shutoff valve channel water shutoff mouth the controlling rod assembly match.
2, a kind of vibrationproof voltage stabilizing pressure-limit valve according to claim 1 is characterized in that: described damping member is for being arranged between water shutoff mouth and the pressure limiting diaphragm, can holding the separator with holes that controlling rod passes through.
3, a kind of vibrationproof voltage stabilizing pressure-limit valve according to claim 1 is characterized in that: described damping member is for being located in the pressure-limit valve valve body and shroud member controlling rod assembly fit.
4, according to claim 2 or 3 described a kind of vibrationproof voltage stabilizing pressure-limit valves, it is characterized in that: be provided with the water port on described separator or the shroud member or/and the fluid that makes that is loaded on this water port is made the one-way valve of one-way flow.
5, according to claim 1 or 2 or 3 described a kind of vibrationproof voltage stabilizing pressure-limit valves, it is characterized in that: described valve body waterexit end or rising pipe are provided with a voltage stabilizing element that contains the air receiving cavity.
6, a kind of vibrationproof voltage stabilizing pressure-limit valve according to claim 4 is characterized in that: described valve body waterexit end or rising pipe are provided with a voltage stabilizing element that contains the air receiving cavity.
7, a kind of vibrationproof voltage stabilizing pressure-limit valve according to claim 5, it is characterized in that: described voltage stabilizing element is to be arranged at housing structure or the air bag that can seal air on valve body waterexit end or the rising pipe up for safekeeping; Or for being coated on the housing of pressure-limit valve, the water intake of its pressure-limit valve is communicated with the voltage stabilizing element water intake, and water outlet is communicated with voltage stabilizing element housing inner chamber.
8, according to claim 1,2,3,6,7 each described a kind of vibrationproof voltage stabilizing pressure-limit valves, it is characterized in that: be provided with in the described valve body and can be moved by the controlling rod assembly and change the structure of damming of flow, this structure of damming is cone or the curved surface cone adaptive with the water shutoff mouth that is arranged on controlling rod or the closeouts.
9, a kind of vibrationproof voltage stabilizing pressure-limit valve according to claim 5, it is characterized in that: be provided with in the described valve body and can be moved by the controlling rod assembly and change the structure of damming of flow, this structure of damming is cone or the curved surface cone adaptive with the water shutoff mouth that is arranged on controlling rod or the closeouts.
10, a kind of vibrationproof voltage stabilizing pressure-limit valve according to claim 5 is characterized in that: be filled with filter material section in the described voltage stabilizing element, or described voltage stabilizing element is divided into two cavitys by dividing plate, wherein is filled with filtering material in the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201180312U CN200999896Y (en) | 2007-01-10 | 2007-01-10 | Vibration proof voltage-stabilizing pressure-limiting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201180312U CN200999896Y (en) | 2007-01-10 | 2007-01-10 | Vibration proof voltage-stabilizing pressure-limiting valve |
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| Publication Number | Publication Date |
|---|---|
| CN200999896Y true CN200999896Y (en) | 2008-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201180312U Expired - Fee Related CN200999896Y (en) | 2007-01-10 | 2007-01-10 | Vibration proof voltage-stabilizing pressure-limiting valve |
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| CN (1) | CN200999896Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102741770A (en) * | 2009-12-18 | 2012-10-17 | 百威英博公司 | Pressure regulating valve for pressure driven beverage dispensing apparatuses |
| CN106015149A (en) * | 2016-08-08 | 2016-10-12 | 浙江大学 | Vibration-reduction tail structure for eliminating reverse hydraulic power of valve core of one-way slide valve |
| CN106989866A (en) * | 2017-05-23 | 2017-07-28 | 河北宏龙环保科技有限公司 | A kind of damping pressure table damping device |
-
2007
- 2007-01-10 CN CNU2007201180312U patent/CN200999896Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102741770A (en) * | 2009-12-18 | 2012-10-17 | 百威英博公司 | Pressure regulating valve for pressure driven beverage dispensing apparatuses |
| CN102741770B (en) * | 2009-12-18 | 2016-06-01 | 百威英博公司 | Pressure regulator valve for pressure-actuated beverage dispensing device |
| CN106015149A (en) * | 2016-08-08 | 2016-10-12 | 浙江大学 | Vibration-reduction tail structure for eliminating reverse hydraulic power of valve core of one-way slide valve |
| CN106015149B (en) * | 2016-08-08 | 2017-09-29 | 浙江大学 | The vibration damping stern construction eliminated for the reverse hydraulic power of unilateral valve core of the spool valve |
| CN106989866A (en) * | 2017-05-23 | 2017-07-28 | 河北宏龙环保科技有限公司 | A kind of damping pressure table damping device |
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Granted publication date: 20080102 Termination date: 20100210 |