CN2440846Y - pressure reducing and stabilizing hydraut key - Google Patents
pressure reducing and stabilizing hydraut key Download PDFInfo
- Publication number
- CN2440846Y CN2440846Y CN 00250499 CN00250499U CN2440846Y CN 2440846 Y CN2440846 Y CN 2440846Y CN 00250499 CN00250499 CN 00250499 CN 00250499 U CN00250499 U CN 00250499U CN 2440846 Y CN2440846 Y CN 2440846Y
- Authority
- CN
- China
- Prior art keywords
- valve seat
- current limiter
- valve
- guide
- axis
- 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
Landscapes
- Safety Valves (AREA)
Abstract
The utility model relates to a pressure reducing and stabilizing fire hydrant. The utility model has a handwheel, a valve body, and a valve clack, which the common fire hydrant has. The utility model is characterized in that the inner part of the valve body is provided with a set of pressure reducing and stabilizing devices, each pressure reducing and stabilizing device is composed of a spring, a valve seat, a current limiter, and a guiding shaft; a spacer plate is arranged inside the valve seat; the center of the spacer plate has a mounting hole for the guiding shaft; the periphery of the spacer plate is provided with water outlet holes; the guiding shaft is inserted in a center hole of the spacer plate of the valve seat; the spring is sheathed on the guiding shaft; the current limiter is arranged at the lower end of the guiding shaft; one end of the spring is arranged on the current limiter, and the other end is arranged at the lower side of the spacer plate of the valve seat. According to the variation of water pressure of a water inlet, the current limiter can follow the guiding shaft together to slide up and down along the center hole of the spacer plate of the valve seat under the action of the water pressure of the water inlet and the spring. The utility model can automatically regulate the water flow gap between the lower end hole of the valve seat and the current limiter. The utility model has the function for stabilizing the water pressure of a water outlet.
Description
The utility model is a kind of novel fire-fighting equipment.
At present the main pressure reducing mode of hydrant is to lean against the mode that installs pressure reducing orifice before the hydrant additional to realize lowering the hydraulic pressure purpose in the Fire fighting system in high-vise building, calculates the amplitude of the size decision decompression of orifice plate diameter by theory.Its disadvantage is to have increased outside the hydrant cover decompressor, has occupied installing space, has increased the installation complexity; And there are a certain distance in the theoretical result of calculation in orifice plate aperture and practical application, and the orifice plate diameter in use is immutable after determining, then hydrant water outlet hydraulic pressure can change along with the height of source pressure and change, and can not keep stable, and the fire extinguishing operation is had a negative impact.
The purpose of this utility model is to provide a kind of hydrant that can be stabilized to the water source hydraulic pressure that changes required water outlet hydraulic pressure value automatically that decompressor and hydrant are integrated.
The utility model is achieved in that
The utlity model has handwheel, valve body and flap that common hydrant has, its feature is that valve inner installed one group of decompression stable-pressure device that is made of spring, valve seat, current limiter, the axis of guide.One dividing plate is arranged in the valve seat, the dividing plate periphery has weep hole, the axis of guide is installed in the dividing plate centre bore, current limiter is fixed on the lower end of the axis of guide, spring housing is on the axis of guide, and an end leans against on the current limiter, and the other end leans against on the valve seat dividing plate, current limiter can slide along valve seat dividing plate centre bore with the axis of guide, thereby changed under the valve seat size in gap between the stomidium and current limiter; Spring redeeming between valve seat dividing plate and the current limiter is in order to the displacement of stomidium under the relative valve seat of control current limiter.When water inlet hydraulic pressure is bigger, the water pressure that acts on the current limiter bottom is during greater than the elasticity tension of spring, and current limiter upwards slides with the axis of guide, and the gap that current limiter and hole, valve seat lower end are formed reduces, current by the time resistance increasing; When water inlet hydraulic pressure is low, act on the elasticity tension of the water pressure of current limiter bottom less than spring, current limiter with the axis of guide to lower slider, the gap increase that current limiter and hole, valve seat lower end form, current by the time resistance reduce.Therefore with the variation of water inlet hydraulic pressure, current limiter slides up and down with the axis of guide, can regulate the current gap that current limiter and hole, valve seat lower end form automatically, plays the effect of stablizing delivery port hydraulic pressure.
The bearing support that dividing plate in the valve seat can be made up of several muscle, this bearing support can be to be connected on the valve seat, also can be connected as a single entity with valve seat, its effect is the supporting axis of guide and spring and current limiter mounted thereto, under the situation that does not influence the delivery port stable water pressure, can make that impurity passes through smoothly in the water.
The axis of guide in this decompression stable-pressure device can be fixed on the valve seat dividing plate, also can be connected as a single entity with valve seat, and the current limiter and the axis of guide are for being slidingly connected.Current limiter can do sliding up and down along the axis of guide under the effect of water inlet hydraulic pressure and spring, thus regulate that current limiter and hole, valve seat lower end form pass through the current gap, the stablizing of assurance delivery port hydraulic pressure.
In the connecting hole of valve gap and flap, adopt the ring structure sealing, also can between valve gap and valve stem nut, adopt packing seal;
Decompressor that the utility model adopts and the mode that hydrant is integrated can adapt to different water source hydraulic pressure automatically, stablize water outlet hydraulic pressure within the specific limits, are that a kind of scope of application is wide, practicality and easy hydrant.
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing 1 is the utility model example structure figure.
Accompanying drawing 2 is another kind of example structure figure of the present utility model.
Among the figure: (1) valve body (2) current limiter (3) spring (4) valve seat (5) sealing mat (6) valve gap (7) valve stem nut (8) handwheel (9) valve rod (10) flap (11) sealing ring (12) axis of guide (13) filler (14) delivery port (15) weep hole (16) water inlet
As shown in Figure 1: handwheel (8) is being housed, interior water inlet one side of the valve body (1) of flap (10) is equipped with valve seat, valve seat has dividing plate in (4), there is a centre bore that is used to install the axis of guide (12) at the dividing plate center, four weep holes are arranged on every side, spring (3) is enclosed within on the axis of guide (12), current limiter (2) is fixed on the lower end of the axis of guide (12), spring (3) one ends and current limiter (2) are fixing, the other end is installed on the valve seat (4), current limiter (2) can slide along valve seat (4) dividing plate centre bore with the axis of guide (12), thereby has changed the size in gap between following stomidium of valve seat (4) and the current limiter (2).Spring (3) redeeming between the dividing plate of valve seat (4) and the current limiter (2) is in order to the displacement of stomidium under the relative valve seat (4) of control current limiter (2).The handwheel (8) of outwarding winding, flap (10) is moved up by the effect of hydraulic pressure, flap is opened, when water inlet hydraulic pressure is big, act on the elasticity tension of the water pressure of current limiter (2) bottom greater than spring (3), current limiter (2) upwards slides with the axis of guide (12), and current limiter (2) and the current gap of passing through that valve seat (4) hole, lower end forms are reduced, and resistance to water-flow strengthens; When water inlet hydraulic pressure is low, act on the elasticity tension of the water pressure of current limiter (2) bottom less than spring (3), to lower slider, current limiter (2) valve seat (4) relatively increases in the current gap of passing through of stomidium generation down current limiter (2) with the axis of guide (12), and resistance to water-flow reduces.According to the variation of water inlet hydraulic pressure, current limiter (2) slides up and down with the axis of guide (12), can regulate current limiter (2) and valve seat (4) stomidium current gap down automatically, plays the effect of stablizing delivery port hydraulic pressure.Current with steady pressure are discharged outside the valve body through the weep hole (15) and the gap between valve seat (4) and the flap (10) of valve seat (4).In order to prevent that current are along overflowing between valve gap (6) and the valve stem nut (7) and between valve stem nut (7) and the valve rod (9), between valve gap (6) and flap (10) guide rod, be provided with O type rubber seal, when guaranteeing that valve rod moves up and down, the water in the valve body can not leak.
As shown in Figure 2: in the related valve body (1) of as above embodiment, the axis of guide is fixed on valve seat (4) dividing plate, be connected as a single entity with valve seat (4), spring (3), current limiter (2) order is sleeved on the axis of guide of valve seat (4) dividing plate downside, spring (3) one ends lean against on the current limiter (2), the other end leans against on valve seat (4) dividing plate, current limiter (2) can slide up and down along the axis of guide, can change under the valve seat (4) size in gap between the stomidium and current limiter (2), spring (3) redeeming still between valve seat (4) dividing plate and the current limiter (2), the relative valve seat (4) of control current limiter (2) is the displacement of stomidium down.Its decompression principle of stabilized voltage is same as the previously described embodiments.This embodiment is to the sealing between valve gap (6), valve stem nut (7) and the flap (10), be between the guide rod of valve gap (6), flap (10), to have adopted packing seal, in case when having water to leak, can suitably screw valve stem nut (7), compress filler the water in the valve body can not overflowed.
Claims (4)
1. a decompression voltage stabilizing hydrant has handwheel, valve body and flap that common hydrant has, it is characterized in that valve inner has adopted the decompression stable-pressure device of being made up of spring, valve seat, current limiter, the axis of guide.One dividing plate is arranged in the valve seat, and there is an axis of guide installing hole at the dividing plate center, and periphery has weep hole; The axis of guide inserts valve seat dividing plate centre bore, and spring housing is on the axis of guide, and current limiter places axis of guide lower end, and spring one end is contained on the current limiter, and the other end is contained in valve seat dividing plate downside.
2. decompression voltage stabilizing hydrant according to claim 1 is characterized in that the bearing support that the dividing plate of valve seat can be made up of several muscle, and this bearing support can be to be connected on the valve seat, also can be connected as a single entity with valve seat.
3. decompression voltage stabilizing hydrant according to claim 1 is characterized in that the axis of guide in this decompression stable-pressure device can be to be fixedly mounted on the valve seat dividing plate, and the axis of guide and current limiter are for being slidingly connected.
4. according to claim 1 and 4 described decompression voltage stabilizing hydrants, it is characterized in that the sealing between valve gap and the flap, both can between valve gap and flap, adopt the sealing ring sealing, also can between valve gap and valve stem nut, adopt packing seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00250499 CN2440846Y (en) | 2000-09-11 | 2000-09-11 | pressure reducing and stabilizing hydraut key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00250499 CN2440846Y (en) | 2000-09-11 | 2000-09-11 | pressure reducing and stabilizing hydraut key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2440846Y true CN2440846Y (en) | 2001-08-01 |
Family
ID=33608664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00250499 Expired - Fee Related CN2440846Y (en) | 2000-09-11 | 2000-09-11 | pressure reducing and stabilizing hydraut key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2440846Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498136A (en) * | 2015-12-21 | 2016-04-20 | 江苏龙力神精工科技有限公司 | Pressure stabilizing fire hydrant |
| CN105749472A (en) * | 2014-12-18 | 2016-07-13 | 常熟市福安消防设备有限公司 | Fire hydrant |
| CN106267668A (en) * | 2016-09-21 | 2017-01-04 | 江苏龙力神精工科技有限公司 | Voltage stabilizing fire hydrant |
| CN113124175A (en) * | 2019-12-30 | 2021-07-16 | 中核国电漳州能源有限公司 | Multipurpose fire-fighting water pump adapter |
-
2000
- 2000-09-11 CN CN 00250499 patent/CN2440846Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105749472A (en) * | 2014-12-18 | 2016-07-13 | 常熟市福安消防设备有限公司 | Fire hydrant |
| CN105498136A (en) * | 2015-12-21 | 2016-04-20 | 江苏龙力神精工科技有限公司 | Pressure stabilizing fire hydrant |
| CN106267668A (en) * | 2016-09-21 | 2017-01-04 | 江苏龙力神精工科技有限公司 | Voltage stabilizing fire hydrant |
| CN113124175A (en) * | 2019-12-30 | 2021-07-16 | 中核国电漳州能源有限公司 | Multipurpose fire-fighting water pump adapter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101298890B (en) | Adjustable compression release valve | |
| CN2440846Y (en) | pressure reducing and stabilizing hydraut key | |
| CN102278503A (en) | Integral pressure reduction valve | |
| CN106704643B (en) | Backflow preventer | |
| CN202132567U (en) | Integrated reducing valve | |
| US2914078A (en) | Gas lift valve damper | |
| CN209340596U (en) | A kind of adjustable shut-off valve | |
| CN206582366U (en) | A kind of gasket type one-way constant flow valve | |
| CN204664538U (en) | A kind of irrigation uses multi-function high-flow reduction valve | |
| CN208565697U (en) | A kind of pressure reducing valve | |
| CN208845738U (en) | A kind of high leakproofness water nozzle | |
| CN210531741U (en) | Mute check valve with automatic pressure relief structure | |
| CN2530672Y (en) | Pressure-reducing and pressure-regulating indoor hydrant | |
| CN220850895U (en) | Novel flow pressure relief valve | |
| CN111188390A (en) | Overflow device for improving overflow capacity and accelerating discharge speed of drain valve | |
| CN203979526U (en) | Axial flow type check valve | |
| CN202901397U (en) | Adjustable spherical non-return valve | |
| CN212509688U (en) | Multifunctional pressure reducing valve | |
| CN2392559Y (en) | Pressure-reduced and pressure-stabilized fire hydrant | |
| CN220134692U (en) | Spring type check valve | |
| CN215172540U (en) | Water pressure safety valve for mining motor | |
| CN220600479U (en) | Micro flow regulating valve | |
| CN212360904U (en) | Novel check valve | |
| CN218294503U (en) | Pressure reducing valve with guiding function | |
| CN212480259U (en) | Flexible and accurate pressure regulating small-volume pressure stabilizing valve |
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 |