CN2514189Y - Pressure relief valve - Google Patents
Pressure relief valve Download PDFInfo
- Publication number
- CN2514189Y CN2514189Y CN 01225883 CN01225883U CN2514189Y CN 2514189 Y CN2514189 Y CN 2514189Y CN 01225883 CN01225883 CN 01225883 CN 01225883 U CN01225883 U CN 01225883U CN 2514189 Y CN2514189 Y CN 2514189Y
- Authority
- CN
- China
- Prior art keywords
- honeycomb duct
- valve body
- tube
- tubular valve
- annular boss
- 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
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Abstract
The utility model belongs to a pressure-reducing valve. An annular compartment plate in a tube-shaped valve body partitions the tube-shaped valve body into a front tube and a rear tube, an intercepting plate is arranged in the front tube, a water flow-regulating element is a tube-shaped draft tube, which is provided with two annular lug bosses, the front end of the draft tube inserts into the annular compartment plate, the intercepting plate is provided with a flowing water mouth, a sealing ring is arranged between the annular compartment plate and the draft tube, a spiral compression spring is arranged outside the draft tube, the terminal of the tube-shaped valve body is provided with a tube-shaped valve cover, one annular lug boss at the terminal of the draft tube is tucked in the tube-shaped valve cover and is provided with a sealing ring, and the other annular lug boss of the draft tube is positioned in the rear tube and is provided with a sealing ring. The pressure of the water-pouring side of the pressure-reducing valve is stable.
Description
The utility model belongs to reduction valve.
Existing reduction valve is the regulating type reduction valve, and the reduction valve of this class is by adjusting the size of screw adjusted valve pocket inlet, adjusting mouth of a river water pressure to reach.The pressure of must supporting setting pressure table behind the water outlet of this class reduction valve just being convenient to control system, the pipe-line system complexity, price is higher, the forward and backward differential water pressures of reduction valve is little, the pressure of water outlet side and the pressure difference of water inlet side are not more than 15% of water side into, the pressure of water outlet side becomes with the pressure of water inlet side, the discharge pressure instability.Some water system require to be regulated pressure stability as the concrete characteristics of sprinkling irrigation, drip irrigation, and working pressure is lower than 0.5MPa, connects easyly, and existing reduction valve can not satisfy the requirement of this class water system.
The purpose of this utility model provides the reduction valve of a kind of water outlet side pressure stability.
One honeycomb duct is arranged in this reduction valve, the area that hydraulic pressure holds in water outlet side in the honeycomb duct holds the area of hydraulic pressure greater than water inlet side, scheme of the present utility model is the size that is moved forward and backward automatic adjusting flowing water mouth by the water pressure difference promotion honeycomb duct of water inlet side and water outlet side in tubular valve body, reach the effect of regulating water outlet side's pressure by differential water pressures automatically, in little scope, fluctuate with the water pressure of keeping water outlet side.
This reduction valve comprises valve body, regulate the moving element of current, it is characterized in that: said valve body is tubular valve body, pipe and back pipe before having a toroidal membrane that the pipe type valve intracoelomic cavity is divided in the tubular valve body, in preceding pipe, intercepter plate is installed, the moving element of said adjusting current is tubular honeycomb ducts, axial guide plate is being set in the honeycomb duct, be provided with the twice annular boss at the rear portion of honeycomb duct, the front end of honeycomb duct inserts in the interior toroidal membrane of tubular valve body, have between the front end of honeycomb duct and the intercepter plate at interval, the flowing water mouth is arranged on the intercepter plate, the forward end seal of seal ring with the back pipe is installed between toroidal membrane and the honeycomb duct; Spiral compression spring at the honeycomb duct overcoat, the two ends of spiral compression spring withstand on respectively between the annular boss of toroidal membrane and honeycomb duct, terminal fastening tubular valve gap at tubular valve body with water outlet, the annular boss plug of honeycomb duct end is in tubular valve gap, between this annular boss outer and tubular valve gap inboard, seal ring is being set, another annular boss of honeycomb duct is located in the pipe of back, between this annular boss and pipe inboard, back, the radially bending edge seal ring of bending of periphery is installed, the inner ring of bending edge seal ring is stuck in the circular groove of this annular boss, the outer ring of sealing circle is stuck in the circular groove between the terminal and tubular valve gap of tubular valve body, between back pipe and honeycomb duct, constitute cavity like this, when before and after honeycomb duct, sliding, the outer ring of sealing circle is motionless just interior moving, seals more reliable.
This reduction valve is taked tubular valve body and can be along axially movable honeycomb duct in the tubular valve body, the area that hydraulic pressure holds in the water outlet side of honeycomb duct holds the area of hydraulic pressure greater than water inlet side, when the hydraulic pressure of water inlet side increases the current increase, the hydraulic pressure of water outlet side strengthen from after overcome spiral compression spring elastic force reduced the flowing water mouth before honeycomb duct is pushed to, the hydraulic pressure that the flow of water reduces water outlet side reduces thereupon, when the hydraulic pressure of water inlet side reduces, the hydraulic pressure of water outlet side reduces thereupon, honeycomb duct moves backward under helical spring thrust, the flowing water mouth increases water flow and increases, water inlet side promotes honeycomb duct moves forward and backward automatic adjusting flowing water mouth in tubular valve body size with the water pressure difference of water outlet side like this, reach the effect of regulating water outlet side's pressure by differential water pressures automatically, the water pressure of keeping water outlet side fluctuates in little scope, when in the 0.1-0.5Mpa scope, changing as hydraulic pressure when water inlet side, the wave range of water outlet side's hydraulic pressure only is 0.08-0.1Mpa, the pressure difference of water inlet side and water outlet side can reach 80% of water side into, the stable water pressure of water outlet side can be used for the water system that into water side and water outlet side's differential water pressures use as spray irrigation pipe and drip irrigation pipe greatly.
The detailed structure of this reduction valve is provided by embodiment and accompanying drawing thereof, and following embodiment is not to restriction of the present utility model.
Fig. 1 is the longitudinal sectional view of this reduction valve.
Fig. 2 is the sectional drawing of bending edge seal ring, and Fig. 1 amplifies relatively.
Among the above-mentioned figure: 1, tubular valve body 2, connecting plate 3, honeycomb duct 4, circular groove 5, seal ring 6, spiral compression spring 7, circular groove 8, bending edge seal ring 9, circular groove 10, seal ring 11, tubular valve gap 12, water intake 13, preceding pipe 14, intercepter plate 15, flowing water mouth 16, volution 17, toroidal membrane 18, cavity 19, guide plate 20, back pipe 21, circular groove 22, annular boss 23, annular boss 24, water outlet 25, outer ring 26, bending 27, inner ring
The embodiment of this reduction valve sees Fig. 1, Fig. 2, it comprises valve body, regulate the moving element of current, it is characterized in that: said valve body is tubular valve body 1, pipe 13 and back pipe 20 before having a toroidal membrane 17 that tubular valve body 1 inner chamber is divided in the tubular valve body 1, in preceding pipe 13, intercepter plate 14 is installed, the moving element of said adjusting current is tubular honeycomb ducts 3, axial guide plate 19 is being set in the honeycomb duct 3, annular boss 22 and annular boss 23 are arranged at the rear portion of honeycomb duct 3, the front end of honeycomb duct 3 inserts in the toroidal membrane 17 in the tubular valve body 1, have between the front end of honeycomb duct 3 and the intercepter plate 14 at interval, three flowing water mouths 15 are arranged on the intercepter plate 14 and be one with volution 16, before volution 16 is installed in, manage in 13, between toroidal membrane 17 and the volution 16 circular groove 4 is arranged, seal ring 5 be installed in the circular groove 4 with honeycomb duct 3 between, the back managed 20 forward end seal.Spiral compression spring 6 at honeycomb duct 3 overcoats, the two ends of spiral compression spring 6 withstand on respectively between toroidal membrane 17 and the annular boss 22, terminal fastening tubular valve gap 11 at tubular valve body 1 with water outlet 24, annular boss 23 plugs of honeycomb duct 3 ends are in tubular valve gap 11, in annular boss 23 outers circular groove 9 is arranged, seal ring 10 is installed in the circular groove 9 and between tubular valve gap 11 inboards.The annular boss 22 of honeycomb duct 3 is located in the back pipe 20, between annular boss 22 outers and pipe 20 inboards, back, the radially bending edge seal ring 8 of bending of periphery is installed, the inner ring 27 of bending edge seal ring 8 is stuck in the circular groove of annular boss 22, the outer ring 25 of sealing circle is stuck in the circular groove 7 between the terminal and tubular valve gap 11 of tubular valve body 1, between back pipe 20 and honeycomb duct 3, constitute cavity 18 like this, when sliding in honeycomb duct 3 front and back, the outer ring 25 motionless just inner rings 27 of bending edge seal ring 8 move forward and backward, and sealability is higher.
Claims (1)
- A reduction valve, it comprises valve body, regulate the moving element of current, it is characterized in that: said valve body is tubular valve body, pipe and back pipe before having a toroidal membrane that the pipe type valve intracoelomic cavity is divided in the tubular valve body, in preceding pipe, intercepter plate is installed, the moving element of said adjusting current is tubular honeycomb ducts, axial guide plate is being set in the honeycomb duct, be provided with the twice annular boss at the rear portion of honeycomb duct, the front end of honeycomb duct inserts in the interior toroidal membrane of tubular valve body, have between the front end of honeycomb duct and the intercepter plate at interval, the flowing water mouth is arranged on the intercepter plate, between toroidal membrane and the honeycomb duct seal ring is installed; Spiral compression spring at the honeycomb duct overcoat, the two ends of spiral compression spring withstand on respectively between the annular boss of toroidal membrane and honeycomb duct, terminal fastening tubular valve gap at tubular valve body with water outlet, the annular boss plug of honeycomb duct end is in tubular valve gap, between this annular boss outer and tubular valve gap inboard, seal ring is being set, another annular boss of honeycomb duct is located in the pipe of back, between this annular boss and pipe inboard, back, the radially bending edge seal ring of bending of periphery is installed, the inner ring of bending edge seal ring is stuck in the circular groove of this annular boss, and the outer ring of sealing circle is stuck in the circular groove between the terminal and tubular valve gap of tubular valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01225883 CN2514189Y (en) | 2001-06-02 | 2001-06-02 | Pressure relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01225883 CN2514189Y (en) | 2001-06-02 | 2001-06-02 | Pressure relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2514189Y true CN2514189Y (en) | 2002-10-02 |
Family
ID=33641736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01225883 Expired - Fee Related CN2514189Y (en) | 2001-06-02 | 2001-06-02 | Pressure relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2514189Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351581A (en) * | 2015-11-30 | 2016-02-24 | 哈尔滨第一机械集团有限公司 | Pressure reducing valve for track armored vehicle |
| CN109442070A (en) * | 2018-12-12 | 2019-03-08 | 珠海爱迪生智能家居股份有限公司 | The pressure limit valve of adjustable pressure |
-
2001
- 2001-06-02 CN CN 01225883 patent/CN2514189Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351581A (en) * | 2015-11-30 | 2016-02-24 | 哈尔滨第一机械集团有限公司 | Pressure reducing valve for track armored vehicle |
| CN109442070A (en) * | 2018-12-12 | 2019-03-08 | 珠海爱迪生智能家居股份有限公司 | The pressure limit valve of adjustable pressure |
| CN109442070B (en) * | 2018-12-12 | 2023-12-05 | 珠海爱迪生智能家居股份有限公司 | Pressure limiting valve capable of adjusting pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |