CN201696696U - Relief valve - Google Patents
Relief valve Download PDFInfo
- Publication number
- CN201696696U CN201696696U CN2010203007673U CN201020300767U CN201696696U CN 201696696 U CN201696696 U CN 201696696U CN 2010203007673 U CN2010203007673 U CN 2010203007673U CN 201020300767 U CN201020300767 U CN 201020300767U CN 201696696 U CN201696696 U CN 201696696U
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- valve
- valve body
- core case
- pressure cap
- spool
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Abstract
The utility model provides a relief valve, belongs to the technical field of valves, and solves the problem that the conventional relief valve has horizontally arranged water inlet and water outlet and causes too little water pressure relief. The relief valve includes a valve body, a valve rod, a valve core capable of forming seal with the valve rod, and a pressure cap fixedly connected with the valve body, wherein a sealing fin forming the seal with the valve body is arranged between the valve body and the pressure cap, the valve core is arranged in the valve body and connected with one end of the valve rod, the other end of the valve rod penetrates the sealing fin and is arranged in the pressure cap, the valve rod in the pressure cap is sleeved with a spring, one end of the spring is propped against the pressure cap, the other end of the spring is propped against the valve rod, a water inlet pipe and a water outlet pipe are obliquely arranged on the valve body and have the axes on the same straight line, and the water inlet pipe is lower than the water outlet pipe. The relief valve has the characteristics of simple structure and pressure relief effects at a water inlet and a water outlet.
Description
Technical field
The utility model belongs to valve technology field, relates to a kind of reduction valve.
Background technique
Reduction valve is mainly used in the terminal of water delivery in pipeline system, and the structure of utilizing reduction valve is when the hydraulic pressure of pipeline increases certain value, and closing pipe line is effectively controlled the pressure surge of water transfer pipe network, is damaged by high hydraulic pressure to avoid the terminal watering equipment.
" reduction valve " that existing reduction valve such as Chinese patent application number provide for CN1967031A for the 200510061618.X publication number, comprise valve body, valve core rod, pressure regulating cover, epithelium, spring, spring seat, screw press, nut epithelium compressing tablet, valve body is that the outside thread that is provided with on internal thread and the pressure regulating cover is connected, filter screen is located at the Pressure relief valve seat circumferential surface, and between O shape is enclosed before O shape circle and the Pressure relief valve seat behind Pressure relief valve seat, return port is not communicated with water intake misorientation setting on the reduction valve, also be provided with groove and protruding circle at Pressure relief valve seat one end, water intake and water outlet are all female thread structure, are respectively equipped with flat gasket in its mouthful.
The water intake and the water outlet of this reduction valve all are horizontally disposed with, and do not have too many effect for the minimizing of hydraulic pressure, require further improvement.
Summary of the invention
The purpose of this utility model is to have above-mentioned problem at existing reduction valve, and a kind of simple in structure, reduction valve of having effect of easing stress at water intake and water outlet place is provided.
The purpose of this utility model can realize by following technical proposal: a kind of reduction valve, comprise valve body, valve rod, can form the spool of sealing and the pressure cap that is connected with valve body with valve body, between valve body and pressure cap, be provided with the diaphragm seal that a slice and valve body form sealing, described spool is arranged in the valve body and is connected with above-mentioned valve rod one end, the other end of valve rod passes diaphragm seal and is in the pressure cap, be with spring on the valve rod in pressure cap, one end of spring withstands on the pressure cap, the other end withstands on the valve rod, it is characterized in that, have the intake pipe and the outlet pipe that are obliquely installed on the described valve body, the shaft axis of described intake pipe and outlet pipe is on the same straight line, and the position of intake pipe is lower than the position of outlet pipe.
This reduction valve is used for regulating the fluctuation of hydraulic pressure.Under the effect of spring, valve rod withstands on the valve body, and there are the gap of water flowing in spool and valve body, and water flows out from outlet pipe from flowing to the gap after intake pipe enters again.At current during through spool, because the effect of hydraulic pressure, overcome the elastic force of spring, promote spool and dwindle the gap, reduce the hydraulic pressure at outlet pipe place.General, hydraulic pressure is big more, and the gap is more little, makes the hydraulic pressure at outlet pipe place keep stable.When hydraulic pressure was enough big, spool and valve body formed sealing.And intake pipe and outlet pipe are obliquely installed, can make current through the time impact force deflection and away from spool, make spool and valve rod keep stable, prevent the phenomenon of swing.In addition, water enters valve body according to the track that tilts, and the shaft axis of intake pipe intake pipe and outlet pipe is on the same straight line, and the position of intake pipe is lower than the position of outlet pipe, water to exceeding stream, under the influence of gravity, makes hydraulic pressure obtain to a certain extent reducing from lower.
In above-mentioned reduction valve, be provided with the valve core case of tubular in the described valve body, on valve core case, be provided with the passage that outlet pipe is connected, above-mentioned valve rod is located in the valve core case, and spool is positioned at outside the lower end of valve core case, and can form sealing with the lower end of valve core case.Current advance in valve core case then flowing to outlet pipe from passage.Water can move thereby promote spool through spool is set in flowing to valve core case the time.When hydraulic pressure was enough big, spool and valve core case lower end formed sealing.
In above-mentioned reduction valve, described valve core case is with filter screen outward, and described filter screen is positioned at outside the above-mentioned passage.Come impurity in the filtered water by filter screen.
In above-mentioned reduction valve, be provided with seal ring between described valve core case and the valve body, the sealing circle is positioned at the below of filter screen.By seal ring water can only be flow through from the inside of valve core case, and the water after having filtered can not flow back to valve body between valve core case and valve body.
In above-mentioned reduction valve, be provided with gland in the described pressure cap, be connected by screw thread between gland and the pressure cap, an end of above-mentioned spring withstands on the gland.Rotate the elastic force that gland can Regulation spring.
In above-mentioned reduction valve, described spool is provided with sealing gasket, is provided with the conical surface that can contact with sealing gasket in the lower end of valve core case.Guarantee sealing between spool and the valve core case by this structure.
Compared with prior art, this reduction valve has following advantage:
1, this reduction valve is obliquely installed intake pipe and outlet pipe, can make current through the time impact force deflection and away from spool, make spool and valve rod keep stable, prevent the phenomenon of swing.
2, the shaft axis of intake pipe intake pipe and outlet pipe is on the same straight line, and the position of intake pipe is lower than the position of outlet pipe, and water enters valve body according to the track that tilts, and flows to exceeding from lower, under the influence of gravity, make hydraulic pressure obtain to a certain extent reducing.
3, spool is provided with sealing gasket, is provided with the conical surface that can contact with sealing gasket in the lower end of valve core case, guarantees sealing between spool and the valve core case by this structure.
Description of drawings
Fig. 1 is the structural representation of this reduction valve.
Among the figure, valve body 1, valve rod 2, the body of rod 21, screw 22, pad 23, spool 3, pressure cap 4, diaphragm seal 5, spring 6, intake pipe 7, outlet pipe 8, valve core case 9, filter screen 10, seal ring 11, sealing gasket 12, the conical surface 13, gland 14.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this reduction valve comprises valve body 1, valve rod 2, spool 3, pressure cap 4 and diaphragm seal 5 and spring 6, is used for regulating the fluctuation of hydraulic pressure.
Specifically, valve body 1 and pressure cap 4 are by being threaded, and diaphragm seal 5 is arranged between valve body 1 and the pressure cap 4, and by pressure cap 4 diaphragm seal 5 is fixed on the valve body 1, make diaphragm seal 5 and valve body 1 form sealing.On valve body 1, have the intake pipe 7 and the outlet pipe 8 that are obliquely installed, the shaft axis of described intake pipe 7 and outlet pipe 8 is on the same straight line, and the position of intake pipe 7 is lower than the position of outlet pipe 8, internal thread is set on intake pipe 7 and outlet pipe 8 is connected with convenient.In valve body 1, be provided with valve core case 9 cylindraceous, the upper end of valve core case 9 is arranged on the downside of diaphragm seal 5, is provided with the passage that outlet pipe 8 is connected on the side of valve core case 9, the valve core case 9 outer filter screens 10 that are with, filter screen 10 is positioned at outside the passage, comes impurity in the filtered water by filter screen 10.Be provided with seal ring 11 between valve core case 9 and the valve body 1, sealing circle 11 is positioned at the below of filter screen 10.By seal ring 11 water can only be flow through from the inside of valve core case 9, and the water after having filtered can not flow back to valve body 1 between valve core case 9 and valve body 1.
Spool 3 is positioned at outside the lower end of valve core case 9, and can form sealing with the lower end of valve core case 9.Spool 3 is the disk shape, and its external diameter is greater than the internal diameter of valve core case 9, and spool 3 is provided with sealing gasket 12, is provided with the conical surface 13 that can contact with sealing gasket 12 in the lower end of valve core case 9.Guarantee sealing between spool 3 and the valve core case 9 by this structure.Valve rod 2 is located in the valve core case 9, is made of the body of rod 21, screw 22 and pad 23.One end of the body of rod 21 passes valve core case 9 and spool 3 downwards by being threaded, be provided with seal ring 11 between the other end of the body of rod 21 and the valve core case 9, screw 22 is arranged on the upside of diaphragm seal 5, the pad 23 of metallic material is enclosed within on the screw 22, the external diameter of pad 23 is greater than the internal diameter of valve core case 9, and screw 22 passes diaphragm seal 5 and fixes by screw thread with the other end of valve rod 2.The middle part of diaphragm seal 5 is clamped in the other end of the pad 23 and the body of rod 21, and the middle part of diaphragm seal 5 is moved up and down with valve rod 2.Be with spring 6 on the valve rod 2 in pressure cap 4, an end of spring 6 withstands on the pressure cap 4, and the other end withstands on the pad 23, and under the effect of spring 6, pad 23 withstands on the upper end of valve core case 9.Be provided with gland 14 in the pressure cap 4, be connected by screw thread between gland 14 and the pressure cap 4, an end of spring 6 withstands on the gland 14.Rotate the elastic force that gland 14 can Regulation spring 6.
Under the effect of spring 6, valve rod 2 withstands on the valve body 1, and there are the gap of water flowing in spool 3 and valve body 1, and water flows to the gap again from outlet pipe 8 outflows after intake pipe 7 enters.At current during through spool 3, because the effect of hydraulic pressure, overcome the elastic force of spring 6, promote spool 3 and dwindle the gap, reduce the hydraulic pressure at outlet pipe 8 places.Hydraulic pressure is big more, and the gap is more little, makes the hydraulic pressure at outlet pipe 8 places keep stable.When hydraulic pressure was enough big, spool 3 formed sealing with valve body 1.And intake pipe 7 and outlet pipe 8 are obliquely installed, can make current through the time impact force deflection and away from spool 3, make spool 3 and valve rod 2 keep stable, prevent the phenomenon of swing.In addition, water enters valve body 1 according to the track that tilts, and the shaft axis of intake pipe 7 intake pipes 7 and outlet pipe 8 is on the same straight line, and the position of intake pipe 7 is lower than the position of outlet pipe 8, water to exceeding stream, under the influence of gravity, makes hydraulic pressure obtain to a certain extent reducing from lower.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as valve body 1, valve rod 2, the body of rod 21, screw 22, pad 23, spool 3, pressure cap 4, diaphragm seal 5, spring 6, intake pipe 7, outlet pipe 8, valve core case 9, filter screen 10, seal ring 11, sealing gasket 12, the conical surface 13, gland 14 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (6)
1. reduction valve, comprise valve body (1), valve rod (2), can form the spool (3) of sealing and the pressure cap (4) that is connected with valve body (1) with valve body (1), between valve body (1) and pressure cap (4), be provided with the diaphragm seal (5) that a slice and valve body (1) form sealing, described spool (3) is arranged in the valve body (1) and is connected with above-mentioned valve rod (2) one ends, the other end of valve rod (2) passes diaphragm seal (5) and is in the pressure cap (4), be with spring (6) on the valve rod (2) in pressure cap (4), one end of spring (6) withstands on the pressure cap (4), the other end withstands on the valve rod (2), it is characterized in that, have the intake pipe (7) and the outlet pipe (8) that are obliquely installed on the described valve body (1), the shaft axis of described intake pipe (7) and outlet pipe (8) is on the same straight line, and the position of intake pipe (7) is lower than the position of outlet pipe (8).
2. reduction valve according to claim 1, it is characterized in that, be provided with the valve core case (9) of tubular in the described valve body (1), on valve core case (9), be provided with the passage that outlet pipe (8) is connected, above-mentioned valve rod (2) is located in the valve core case (9), spool (3) is positioned at outside the lower end of valve core case (9), and can form sealing with the lower end of valve core case (9).
3. reduction valve according to claim 2 is characterized in that, described valve core case (9) is outer to be with filter screen (10), and described filter screen (10) is positioned at outside the above-mentioned passage.
4. reduction valve according to claim 3 is characterized in that, is provided with seal ring (11) between described valve core case (9) and the valve body (1), and sealing circle (11) is positioned at the below of filter screen (10).
5. according to claim 1 or 2 or 3 or 4 described reduction valve, it is characterized in that, be provided with gland (14) in the described pressure cap (4), be connected by screw thread between gland (14) and the pressure cap (4), an end of above-mentioned spring (6) withstands on the gland (14).
6. according to claim 2 or 3 or 4 described reduction valve, it is characterized in that described spool (3) is provided with sealing gasket (12), be provided with the conical surface (13) that can contact in the lower end of valve core case (9) with sealing gasket (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203007673U CN201696696U (en) | 2010-01-15 | 2010-01-15 | Relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203007673U CN201696696U (en) | 2010-01-15 | 2010-01-15 | Relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696696U true CN201696696U (en) | 2011-01-05 |
Family
ID=43397938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203007673U Expired - Fee Related CN201696696U (en) | 2010-01-15 | 2010-01-15 | Relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696696U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425693A (en) * | 2011-08-19 | 2012-04-25 | 浙江盾安阀门有限公司 | Adjustable high-flexibility low-pressure and stable-pressure pressure reducing valve |
| CN104989856A (en) * | 2015-07-07 | 2015-10-21 | 海宁市倍世环保科技有限公司 | Pressure control and stabilizing device |
| CN111336305A (en) * | 2020-04-17 | 2020-06-26 | 钟毅 | Angle valve with constant pressure and constant flow function |
-
2010
- 2010-01-15 CN CN2010203007673U patent/CN201696696U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425693A (en) * | 2011-08-19 | 2012-04-25 | 浙江盾安阀门有限公司 | Adjustable high-flexibility low-pressure and stable-pressure pressure reducing valve |
| CN104989856A (en) * | 2015-07-07 | 2015-10-21 | 海宁市倍世环保科技有限公司 | Pressure control and stabilizing device |
| CN111336305A (en) * | 2020-04-17 | 2020-06-26 | 钟毅 | Angle valve with constant pressure and constant flow function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUANG XIAOPING Free format text: FORMER OWNER: WOERDA COPPER INDUSTRY CO., LTD.;ZHEJIANG PROVINCE Effective date: 20140829 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 317608 TAIZHOU, ZHEJIANG PROVINCE TO: 223800 SUQIAN, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140829 Address after: Suqian City, Jiangsu Province, East 223800 south area economic development zone, Sucheng District Xu Tan Road Jiangsu Beijing Hangzhou New Energy Co. Ltd. Patentee after: Huang Xiaoping Address before: 317608 Industrial Zone, Yuhuan County, Zhejiang Province Patentee before: Zhejiang Woerda Copper Industry Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160310 Address after: Taizhou City, Zhejiang province 317608 Yuhuan County Lu Pu town Xuanmen industrial city Zhejiang world HVAC technology Co Ltd Patentee after: Zhuo Danchun Address before: Suqian City, Jiangsu Province, East 223800 south area economic development zone, Sucheng District Xu Tan Road Jiangsu Beijing Hangzhou New Energy Co. Ltd. Patentee before: Huang Xiaoping |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20180115 |