CN201037565Y - Municipal ductwork pressure_ protector - Google Patents
Municipal ductwork pressure_ protector Download PDFInfo
- Publication number
- CN201037565Y CN201037565Y CNU2006201759725U CN200620175972U CN201037565Y CN 201037565 Y CN201037565 Y CN 201037565Y CN U2006201759725 U CNU2006201759725 U CN U2006201759725U CN 200620175972 U CN200620175972 U CN 200620175972U CN 201037565 Y CN201037565 Y CN 201037565Y
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- CN
- China
- Prior art keywords
- valve
- plate
- piston
- pressure
- water
- 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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- Fluid-Driven Valves (AREA)
- Safety Valves (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The utility model provides a pressure protector for municipal pipeline network, which consists of a valve body, a valve plate, a valve stem, a piston plate, a guide holder, a valve bonnet and an auxiliary pipe. The utility model is characterized in that: the valve plate is arranged on a flow control port which is formed in the valve body, a rubber plate is arranged between the valve plate and the flow control port, the rubber plate and the valve plate are also stacked up and fixed on the middle part of the valve stem and are perpendicular to the valve stem, the piston plate in parallel with the valve plate is arranged on the upper end of the valve stem, the lower end of the valve stem is fixed in the central hole of the guide holder on the bottom of the valve body, an abrasion resistant atoxic rubber seal ring is arranged between the piston plate and a piston cylinder, a cushion is arranged on the position where the upper end face of the piston plate is in contact with the valve bonnet, the valve bonnet is tightly fixed on the upper part of the valve body through bolts, and the piston cylinder is respectively communicated with a water inlet cavity and a water outlet cavity through an auxiliary pipe. The utility model which has simple structure, easy debugging, accurate pressure control, easy manufacture as well as flexible opening and closing can be assembled at the openings of the municipal pipeline network to solve the problem that an upper stream water pressure of the municipal pipeline network is lower than a service pressure due to negative pressure or pipe bursting in a downstream pipeline network.
Description
1, technical field
The utility model relates to a kind of pressure guard, specifically a kind ofly is installed in the municipal ductwork pressure protector that the municipal network water supply opening is used for protecting ductwork pressure.
2, background technique
Development along with town and country construction, at present, the city planting ductwork hydraulic pressure in the many areas of China can not satisfy residential quarter or tall building upper-layer user's water requirement, for this reason, prior art has occurred no-negative-pressure water supply equipment and directly has been connected in series pressurization with city planting ductwork, but owing to realize that means, quality and the Security etc. of " no negative pressure " are different, some no-negative-pressure water supply equipment even at all can not realize non-negative pressure method of water supply, if directly serial connection pressurization, can cause water pump to force to draw water, cause the pipe network water pressure rapid drawdown and influence other user's waters from city planting ductwork.Therefore, a kind of hydraulic pressure that can protect municipal ductwork pressure not cause because of downstream pipe network negative pressure or booster of market in urgent need is lower than the product of service pressure.
3, summary of the invention
The purpose of this utility model provides a kind of simple in structure, convenient, precise control of debugging, and can guarantee not and can force down municipal ductwork pressure protector in service pressure because of downstream pipe network negative pressure or booster cause upper waters.
The technological scheme that its technical problem that solves the utility model adopts is: municipal ductwork pressure protector is by valve body; valve plate; valve rod; piston plate; guide holder; valve gap and auxilliary pipe are formed; valve plate is contained in above the control head piece that forms in the valve body; be provided with rubber plate between valve plate and the control head piece; and the stacked valve rod middle part that is fixed on of rubber plate and valve plate; and it is vertical with valve rod; there is piston plate the valve rod upper end with the valve plate secured in parallel; the piston plate shape is that the lower end surface is the plane; the middle part of upper-end surface is a spill; be projection on every side; the valve rod lower end places in the center hole of the guide holder that is fixed on the valve body bottom; piston plate and valve plate are divided into three parts with valve body: the above valve body of piston plate is divided into piston cylinder; piston plate valve body following and that valve plate is above is divided into water-inlet cavity; the following valve body of valve plate is divided into water chamber; in piston cylinder; on the piston plate energy; move down; and adopt wear-resisting nontoxic rubber ring envelope close between piston plate and the piston cylinder; the part that the piston plate upper-end surface contacts with valve gap is provided with cushion; valve gap is fastened on the top of valve body by screw rod; and contact segment therebetween is provided with sealing gasket; offer exhaust port on the valve gap; and at the exhaust port place the supporting screw rod that is provided with; in addition; be provided with connecting port in the valve gap both sides; wherein the connecting port near influent side passes through external auxilliary pipe with piston cylinder and water-inlet cavity UNICOM; and on auxilliary pipe, valve and pressure gauge are housed; wherein valve is installed near water-inlet cavity; another connecting port near water outlet side passes through external auxilliary pipe with piston cylinder and water chamber UNICOM; and on auxilliary pipe, level pressure pilot valve and valve are housed, wherein the level pressure pilot valve is installed near piston cylinder.
During use the utility model is installed in the city planting ductwork opening; solve city planting ductwork upstream hydraulic pressure and cause the problem that is lower than service pressure because of downstream pipe network negative pressure or booster; protected municipal ductwork pressure, have simple in structure, debugging is convenient, pressure control is accurate, easy to manufacture and open and close flexible characteristic.
4, description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure, 1, valve body, 2, guide holder, 3, water-inlet cavity, 4, rubber plate, 5, valve plate, 6, valve rod, 7, piston plate, 8, valve, 9, auxilliary pipe, 10, sealing gasket, 11, screw rod, 12, pressure gauge, 13, valve gap, 14, stifled emitting, 15, level pressure pilot valve, 16, piston cylinder, 17, auxilliary pipe, 18, valve, 19, cushion, 20, rubber ring, 21, water chamber, 101, the control head piece, 131, connecting port, 132, relief opening, 133, connecting port, 201, center hole.
5, embodiment
Explain below below in conjunction with Fig. 1 municipal ductwork pressure protector of the present utility model being done.
As shown in Figure 1; municipal ductwork pressure protector of the present utility model is by valve body (1); valve plate (5); valve rod (6); piston plate (7); guide holder (2); valve gap (13) and auxilliary pipe (9); (17) form; valve plate (5) is contained in above the control head piece (101) that forms in the valve body (1); be provided with rubber plate (4) between valve plate (5) and the control head piece (101); and stacked valve rod (6) middle part that is fixed on of rubber plate (4) and valve plate (5); and it is vertical with valve rod (6); valve rod (6) upper end same valve plate (5) secured in parallel has piston plate (7); piston plate (7) shape is that the lower end surface is the plane; the middle part of upper-end surface is a spill; be projection on every side; valve rod (6) lower end places in the center hole (201) of the guide holder (2) that is fixed on valve body (1) bottom; piston plate (7) and valve plate (5) are divided into three parts with valve body (1): above valve body (1) part of piston plate (7) is piston cylinder (16); valve body (1) part that piston plate (7) is following and valve plate (5) is above is water-inlet cavity (3); following valve body (1) part of valve plate (5) is water chamber (21); in piston cylinder (16); on piston plate (7) energy; move down; and adopt wear-resisting nontoxic rubber ring (20) envelope close between piston plate (7) and the piston cylinder (16); the part that piston plate (7) upper-end surface contacts with valve gap (13) is provided with cushion (19); valve gap (13) is fastened on the top of valve body (1) by screw rod (11); and contact segment therebetween is provided with sealing gasket (10); offer exhaust port (132) on the valve gap (13); and locate supportingly to be provided be threaded stifled and to emit (14) at exhaust port (132); in addition; be provided with connection (131) in valve gap (13) both sides; (133); wherein the connecting port (131) near influent side passes through external auxilliary pipe (9) with piston cylinder (16) and water-inlet cavity (3) UNICOM; and on auxilliary pipe (9), valve (8) and pressure gauge (12) are housed; wherein valve (8) is installed near water-inlet cavity (3); another connecting port (133) near water outlet side passes through external auxilliary pipe (17) with piston cylinder (16) and water chamber (21) UNICOM; and on auxilliary pipe (17), level pressure pilot valve (15) and valve (18) are housed, wherein level pressure pilot valve (15) is installed near piston cylinder (16).
Control principle of the present utility model is: the protection pressure of city planting ductwork is regulated by level pressure pilot valve (15) and is adjusted, when water-inlet cavity (3) pressure of UNICOM's piston cylinder (16) is lower than the safety pressure of level pressure pilot valve (15) setting, level pressure pilot valve (15) cuts out automatically, then the water of water-inlet cavity (3) enters piston cylinder (16) through auxilliary pipe (9), water pressure pushing piston plate (7) in the piston cylinder (16) drives valve plate (5) and closes control head piece (101) downwards, the pipe network current cut off, and pressure gos up; When the hydraulic pressure in the water-inlet cavity (3) rises to the safety pressure that is higher than level pressure pilot valve (15) setting, level pressure pilot valve (15) is opened automatically, water in the piston cylinder (16) flows out through auxilliary pipe (17), water pressure pushing piston plate (7) in the water-inlet cavity (3) drives valve plate (5) and moves up, control head piece (101) is opened, and pipe network water stream passes through; When dead head condition occurring, the hydraulic pressure in the piston cylinder (16) is identical with water-inlet cavity (3), and like this, piston plate (7) and valve plate (5) are closed control head piece (101) automatically in the effect of gravity, and ductwork pressure is constant.
Claims (4)
1. a municipal ductwork pressure protector is by valve body; valve plate; valve rod; piston plate; guide holder; valve gap and auxilliary pipe are formed; it is characterized in that: valve plate is contained in above the control head piece that forms in the valve body; be provided with rubber plate between valve plate and the control head piece; and the stacked valve rod middle part that is fixed on of rubber plate and valve plate; and it is vertical with valve rod; there is piston plate the valve rod upper end with the valve plate secured in parallel; the valve rod lower end places in the center hole of the guide holder that is fixed on the valve body bottom; adopt wear-resisting nontoxic rubber ring envelope close between piston plate and the piston cylinder; the part that the piston plate upper-end surface contacts with valve gap is provided with cushion; valve gap is fastened on the top of valve body by screw rod, piston cylinder by auxilliary pipe respectively with water-inlet cavity and water chamber UNICOM.
2. municipal ductwork pressure protector according to claim 1 is characterized in that: the piston plate shape is that the lower end surface is that the middle part of plane, upper-end surface is spill, is projection on every side.
3. municipal ductwork pressure protector according to claim 1 is characterized in that: on the auxilliary pipe of piston cylinder and water-inlet cavity UNICOM valve and pressure gauge are housed, wherein valve is installed near water-inlet cavity.
4. municipal ductwork pressure protector according to claim 1 is characterized in that: on the auxilliary pipe of piston cylinder and water chamber UNICOM level pressure pilot valve and valve are housed, wherein the level pressure pilot valve is installed near piston cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201759725U CN201037565Y (en) | 2006-12-27 | 2006-12-27 | Municipal ductwork pressure_ protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201759725U CN201037565Y (en) | 2006-12-27 | 2006-12-27 | Municipal ductwork pressure_ protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201037565Y true CN201037565Y (en) | 2008-03-19 |
Family
ID=39210081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201759725U Expired - Fee Related CN201037565Y (en) | 2006-12-27 | 2006-12-27 | Municipal ductwork pressure_ protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201037565Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005450A (en) * | 2013-02-27 | 2014-08-27 | 北京威派格科技发展有限公司 | Water pressure controller having accurate adjusting and non-return functions |
| CN109973694A (en) * | 2019-04-11 | 2019-07-05 | 浙江班尼戈流体控制有限公司 | A kind of booster stop valve |
-
2006
- 2006-12-27 CN CNU2006201759725U patent/CN201037565Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005450A (en) * | 2013-02-27 | 2014-08-27 | 北京威派格科技发展有限公司 | Water pressure controller having accurate adjusting and non-return functions |
| CN109973694A (en) * | 2019-04-11 | 2019-07-05 | 浙江班尼戈流体控制有限公司 | A kind of booster stop valve |
| CN109973694B (en) * | 2019-04-11 | 2024-02-23 | 浙江班尼戈流体控制有限公司 | Explosion tube cut-off valve |
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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 |