CN208619789U - Pressure maintaining valve - Google Patents
Pressure maintaining valve Download PDFInfo
- Publication number
- CN208619789U CN208619789U CN201821386560.5U CN201821386560U CN208619789U CN 208619789 U CN208619789 U CN 208619789U CN 201821386560 U CN201821386560 U CN 201821386560U CN 208619789 U CN208619789 U CN 208619789U
- Authority
- CN
- China
- Prior art keywords
- spool
- hole
- central
- piston
- pressure maintaining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims description 6
- 230000006837 decompression Effects 0.000 abstract description 7
- 230000000087 stabilizing effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
The utility model relates to pressure maintaining valves, including valve body, spool, piston, spring and bonnet, the spool is arranged in valve body, the intracorporal cavity of valve is divided into the cushion chamber on top and the low pressure chamber of lower part, the piston is slidably matched with spool, upper end is connected to bonnet by spring, the bonnet is connect with valve body screw thread, centre is equipped with the screw for being used for adjustment spring pressure, the central through hole passed through for piston is equipped in the middle part of the end face of the spool, the central through hole is connected to by piston with cushion chamber, circumference array is gone back on the end face of spool equipped with several tap holes, the low pressure chamber is connected to by tap hole with cushion chamber, the outer circumference surface of spool is equipped with several side openings being connected to the central through hole, the valve body is equipped with inlet and outlet, the water inlet is connected to by side opening with central through hole, the water outlet and low pressure Chamber connection.The present apparatus can stablize hydraulic pressure while not reducing flow, play the effect of decompression and pressure stabilizing.
Description
Technical field
The utility model belongs to tap water pressure control field, is related to a kind of pressure maintaining valve.
Background technique
It is as shown in Figure 1 a kind of structure of relief pressure valve schematic diagram of the prior art, pressure reducing valve is by adjusting, by inlet pressure
The outlet pressure of a certain needs is reduced to, and by the energy of medium itself, outlet pressure is made to automatically keep stable valve.From stream
From the viewpoint of mechanics, pressure reducing valve is the restricting element that a local resistance can change, i.e., by changing orifice size, makes to flow
The kinetic energy of speed and fluid changes, and the different pressure losses is caused, to achieve the purpose that decompression.Then it is by control and adjusting
The adjusting of system makes the fluctuation of downstream pressure balance each other with spring force, keeps constant downstream pressure in certain error range.
Existing pressure reducing valve is all made of piston working principle, and water flow directly enters piston from spring, can play effect of easing stress, but flow
Amount is also opposite to be reduced, to influence water outlet flow.
Utility model content
In view of this, stablizing hydraulic pressure while not reducing flow the purpose of this utility model is to provide pressure maintaining valve, rise
To the effect of decompression and pressure stabilizing.
In order to achieve the above objectives, the utility model provides the following technical solutions:
Pressure maintaining valve, including valve body, spool, piston, spring and bonnet, the spool is arranged in valve body, and valve is intracorporal
Cavity is divided into the cushion chamber on top and the low pressure chamber of lower part, and the piston is slidably matched with spool, and upper end is connected to by spring
Bonnet, the bonnet are connect with valve body screw thread, and centre is equipped with the screw for being used for adjustment spring pressure, the end face of the spool
Middle part is equipped with the central through hole passed through for piston, and the central through hole is connected to by piston with cushion chamber, on the end face of spool also
Circumference array is equipped with several tap holes, and the low pressure chamber is connected to by tap hole with cushion chamber, and the outer circumference surface of spool is equipped with
Several side openings being connected to the central through hole, the valve body are equipped with inlet and outlet, and the water inlet passes through side opening
It is connected to central through hole, the water outlet is connected to low pressure chamber.
Further, the side opening is four, is evenly distributed on the outer circumference surface of spool.
Further, filter screen is additionally provided on the outside of spool outer circumference surface.
Further, the side opening favours the axis setting of central through hole.
Further, the structure of the water inlet is the structure of outer silk hickey.
Further, the water outlet is connected by loose joint nut.
Further, circlip is equipped between the loose joint nut and water outlet.
Further, the tap hole is 6, is arranged with the circumference array of central through hole.
Further, above and below in the short transverse of the side opening, one is equipped with for accommodating sealing ring
Annular groove, the spool are connect by sealing ring with valve seal.
The utility model has the beneficial effects that: the present apparatus on the basis of mechanism of existing pressure reducing valve, increases one
Spool has an inclination aperture on spool, and water flow first passes through a aperture on spool, subsequently into piston, in this way than original water flow
It is directly entered spring and increases the stability of pressure stabilizing and decompression, to reach voltage regulation result, while water flow of the present invention is not yet
It can reduce.Stablize hydraulic pressure while not reducing flow, play the effect of decompression and pressure stabilizing, rear end is effectively protected paddles and set
Standby water safety, prolongs its service life.The loose joint nut structure of external thread structure and water outlet that water inlet uses is convenient
Installation and removal.
Detailed description of the invention
In order to keep the purpose of this utility model, technical scheme and beneficial effects clearer, the utility model provides as follows
Attached drawing is illustrated:
Fig. 1 is the structural schematic diagram of existing structure pressure reducing valve；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the exploded view of the utility model；
Fig. 4 is the structural schematic diagram of spool；
Fig. 5 is the cross-sectional view of spool.
Specific embodiment
Below in conjunction with attached drawing, the preferred embodiment of the utility model is described in detail.
It is as shown in Figures 2 and 3 a kind of pressure maintaining valve of the utility model embodiment, including valve body 1, spool 2, piston 3, bullet
Spring 4 and bonnet 5, spool 2 are arranged in valve body 1, and the cavity in valve body 1 is divided into the cushion chamber 6 on top and the low pressure chamber of lower part
7, piston 3 is slidably matched with spool 2, and upper end is connected to bonnet 5 by spring 4, and bonnet 5 is threadedly coupled with valve body 1, and centre is equipped with
One is used for the screw 8 of adjustment spring pressure, the central through hole 9 passed through for piston 3 is equipped in the middle part of the end face of spool 2, center is logical
Hole 9 is connected to by piston 3 with cushion chamber 6, circumference array is gone back on the end face of spool 2 equipped with several tap holes 10, low pressure chamber 7 passes through
Tap hole 10 is connected to cushion chamber 6, spool 2, outer circumference surface be equipped with several side openings 11 being connected to central through hole 9, valve body 1
It is equipped with water inlet 12 and water outlet 13, water inlet 12 is connected to by side opening 11 with central through hole 9, water outlet 13 and low pressure chamber 7
Connection.
It is as shown in Figures 4 and 5 the structural schematic diagram of spool 2, in the present embodiment, side opening 11 is four, is evenly distributed on valve
On the outer circumference surface of core 2.The spool 2 of the present embodiment is two parts cylinder composition of coaxial arrangement, wherein in the side opening 11
Above and below in short transverse, one is equipped with for accommodating the annular groove of sealing ring, spool 2 passes through sealing ring and valve
Body is tightly connected.The outer surface of a cylinder is to be connect by O-ring 20 with valve seal above, and inner surface is to pass through O-ring
19 with piston seal.A cylinder internal diameter is smaller below, so that there are certain gaps between valve body, for passing through water flow,
It makes it into the side opening 11 of surrounding.Two end surfaces of spool 2 are vertically provided with tap hole 10, the axial direction of through flow hole 10 simultaneously
It is parallel with the axial direction of spool 2, and with the setting of the circumference array of spool 2.
Using four side openings 11, make more uniform into water, enters central through hole 9 from four sides, there is better stability, energy
The preferably power of four sides of balance keeps piston 3 more stable when moving up and down.Filter screen is additionally provided on the outside of 2 outer circumference surface of spool
14.Filter screen 14 is cylindrical reticular structure, is set in the outside of spool 2, facilitates it and be first filtered water inlet,
The service life of this pressure maintaining valve can be increased.In the present embodiment, wherein 16 and 24 be nut, respectively with the upper and lower ends screw thread of piston 3
Connection is specifically played the role of connecting each section, and 15 be activity mat, is arranged between spring 4 and screw 8, and 17,18,22 be pad
Piece, 23 be the gasket set cooperated with gasket 22, and 19,20,21 be O-ring, and piston is arranged in O-ring 19 and the center of spool 2 is logical
Between hole 9, O-ring 20 and 21 is arranged between spool 2 and valve body 1, using O-ring, also for the pressure for stablizing each position
Power increases the service life of pressure maintaining valve.The top and bottom of side opening 11 are separately positioned on, 25 be circlip, and circlip 25 is arranged in hexagonal nuts
It is interior, certain pretightning force is made it have, can more nearly be connect with pipeline, 26 be hexagonal nuts.
Side opening 11 favours the axis setting of central through hole 9.That is the axial direction of the two is non-intersecting, can play better pressure stabilizing effect
Fruit.Bonnet 5 connects the mainly setting pressure stabilizing parameter of valve body 1, and high pressure water flow after filter screen 14, reaches 4 of spool 2 by water inlet
Tap hole enters central through hole 9, and piston 3 moves upwards, and the water in central through hole 9 enters cushion chamber 6 out of central through hole, and passes through
It crosses tap hole 10 and enters low pressure chamber 7, flowed out by water outlet 13.
Existing pressure reducing valve is all made of piston working principle, and water flow directly enters piston from spring, can play decompression effect
Fruit, but flow is also opposite to be reduced, to influence water outlet flow.The present invention is mounted with a spool 2, valve in 3 front end of piston
There are 4 inclination apertures on core 2, water flow first passes through 4 apertures on spool 2, more straight than original water flow in this way subsequently into piston 3
The stability that pressure stabilizing and decompression are increased into spring is tapped into, to reach voltage regulation result, while water flow of the present invention will not
Reduce.
Finally, it is stated that preferred embodiment above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent
Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage
Solution, can make various changes, without departing from the utility model claims book institute to it in the form and details
The range of restriction.
Claims (9)
1. pressure maintaining valve, it is characterised in that: including valve body, spool, piston, spring and bonnet, the spool is arranged in valve body, will
The intracorporal cavity of valve is divided into the cushion chamber on top and the low pressure chamber of lower part, and the piston is slidably matched with spool, and upper end passes through bullet
Spring is connected to bonnet, and the bonnet is connect with valve body screw thread, and centre is equipped with the screw for being used for adjustment spring pressure, the valve
The central through hole passed through for piston is equipped in the middle part of the end face of core, the central through hole is connected to by piston with cushion chamber, spool
Circumference array is gone back on end face equipped with several tap holes, the low pressure chamber is connected to by tap hole with cushion chamber, the excircle of spool
Face is equipped with several side openings being connected to the central through hole, and the valve body is equipped with inlet and outlet, the water inlet
It is connected to by side opening with central through hole, the water outlet is connected to low pressure chamber.
2. pressure maintaining valve according to claim 1, it is characterised in that: the side opening is four, is evenly distributed on the outer of spool
On periphery.
3. pressure maintaining valve according to claim 2, it is characterised in that: be additionally provided with filter screen on the outside of spool outer circumference surface.
4. pressure maintaining valve according to claim 1, it is characterised in that: the side opening favours the axis setting of central through hole.
5. pressure maintaining valve according to claim 1, it is characterised in that: the structure of the water inlet is the knot of outer silk hickey
Structure.
6. pressure maintaining valve according to claim 1, it is characterised in that: the water outlet is connected by loose joint nut.
7. pressure maintaining valve according to claim 6, it is characterised in that: be equipped with circlip between the loose joint nut and water outlet.
8. pressure maintaining valve according to claim 1, it is characterised in that: the tap hole is 6, with the axis circle of central through hole
All array settings.
9. pressure maintaining valve according to claim 1, it is characterised in that: in the top in the short transverse of the side opening under
Side is equipped with one for accommodating the annular groove of sealing ring, and the spool is connect by sealing ring with valve seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821386560.5U CN208619789U (en) | 2018-08-27 | 2018-08-27 | Pressure maintaining valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821386560.5U CN208619789U (en) | 2018-08-27 | 2018-08-27 | Pressure maintaining valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208619789U true CN208619789U (en) | 2019-03-19 |
Family
ID=65716298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821386560.5U Expired - Fee Related CN208619789U (en) | 2018-08-27 | 2018-08-27 | Pressure maintaining valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208619789U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365853A (en) * | 2020-03-09 | 2020-07-03 | 祁新纪 | Condensing type gas wall-mounted furnace |
| WO2022077920A1 (en) * | 2020-10-16 | 2022-04-21 | 江门市碧特旺五金制品有限公司 | Kitchen showerhead and kitchen faucet |
-
2018
- 2018-08-27 CN CN201821386560.5U patent/CN208619789U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365853A (en) * | 2020-03-09 | 2020-07-03 | 祁新纪 | Condensing type gas wall-mounted furnace |
| WO2022077920A1 (en) * | 2020-10-16 | 2022-04-21 | 江门市碧特旺五金制品有限公司 | Kitchen showerhead and kitchen faucet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204254136U (en) | A kind of multistage porous board type low-noise throttling arrangement | |
| CN208619789U (en) | Pressure maintaining valve | |
| CN110107763B (en) | Multistage pore plate buffering spiral guide rail voltage stabilizing device and method thereof | |
| CN106523723B (en) | A kind of flow control electromagnetic valve | |
| CN204592467U (en) | Axial flow of relying on oneself piston valve | |
| CN101298890A (en) | Adjustable compression release valve | |
| CN208634460U (en) | Flow automatic control ball valve | |
| CN204717081U (en) | Adjustable flow type dynamic balance valve | |
| CN103759028B (en) | A kind of flow coefficient is with the controlled pressure drilling throttle valve tubular needle of aperture linear change | |
| CN203036023U (en) | Fusiform adjustable check valve | |
| CN102853155B (en) | Adjustable pressure reducing valve with high pressure reducing ratio | |
| CN204201212U (en) | Reduction valve | |
| CN204592464U (en) | Pressure loading valve | |
| CN201787141U (en) | One-way cut-off valve | |
| CN203730860U (en) | Check valve for flow regulation | |
| CN202812344U (en) | Pressure-relief safety valve | |
| CN102364183A (en) | Energy-saving full-function regulating valve | |
| CN110454596B (en) | Piston type dynamic differential pressure balance valve | |
| CN201696696U (en) | Relief valve | |
| CN214036904U (en) | Filtering decompression automatic valve | |
| CN205534428U (en) | Pressure regulation filter | |
| CN207715860U (en) | A kind of pressure reduction structure with check-valves | |
| CN203770773U (en) | Pressure regulating valve | |
| CN103322253A (en) | Pressure feedback reducing valve | |
| CN207715840U (en) | A kind of pressure reduction structure with flow controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190319 |