CN105508675A - Stepless pressure reducing valve - Google Patents
Stepless pressure reducing valve Download PDFInfo
- Publication number
- CN105508675A CN105508675A CN201610029786.9A CN201610029786A CN105508675A CN 105508675 A CN105508675 A CN 105508675A CN 201610029786 A CN201610029786 A CN 201610029786A CN 105508675 A CN105508675 A CN 105508675A
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- CN
- China
- Prior art keywords
- spring
- piston
- guide sleeve
- valve
- pressure reducing
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
Abstract
The invention relates to a stepless pressure reducing valve. A valve base is arranged in a valve body, a piston in clearance fit with the valve base is installed in the valve base, a guide sleeve is connected to the valve body, the lower end of the guide sleeve is connected with an end cover, the lower end of the piston stretches into the guide sleeve, and an ejector rod in threaded fit with the end cover penetrates through the end cover; a spring is installed in the guide sleeve, the lower end of the spring is supported by the upper end of the ejector rod, and the upper end of the spring is close to the lower end of the piston. When the stepless pressure reducing valve is used in a water supply system and the spring is in a non-compressed state, the pressure reducing ratio is a fixed value; after the two ends of the spring are pressed by rotating the ejector rod, the ejector rod continues to be rotated, the pressure, on the piston, by the spring is gradually increased, water pressure on a water outlet of the stepless pressure reducing valve will be increased gradually, and namely the pressure reducing ratio will be gradually reduced along with gradual increase of the compression degree of the spring. Therefore, the pressure reducing ratio can be adjusted steplessly by adjusting the ejector rod.
Description
Technical field
The present invention relates to for the reduction valve in water system.
Background technique
Existing a kind of structure for the reduction valve in water system is mainly: be provided with a piston in valve body, the valve seat Spielpassung of piston and valve inner.This reduction valve is reduced pressure to realize certainty ratio by the compression face product moment of piston self, the shortcoming that it exists is: the ratio that each reduction valve can only be determined in realizes decompression, and in water system, often require multi-step pressure reduction, using above-mentioned reduction valve for reaching multi-step pressure reduction, needing to adopt multiple reduction valve to combine, thus, increase user cost first, the complexity second increase installation, using.
Summary of the invention
The object of the present invention is to provide a kind of stepless reduction valve, it can realize certainty ratio decompression and the ratio of decompression again can step-less adjustment to a certain extent.
For achieving the above object, the present invention adopts following scheme: stepless reduction valve, be provided with valve seat in valve body, the piston with its Spielpassung is housed in valve seat, and body base is connected with the guide sleeve parallel with piston axis, guide sleeve lower end is connected with end cap, the lower end of piston extends in guide sleeve, and through there being the push rod with its screw-thread fit on end cap, guide sleeve is built with spring, the lower end of spring by the upper end bearing of push rod, the upper end of spring and the lower end of piston close.
When stepless reduction valve provided by the invention uses in water system, when spring place in the on-compressed state, the difference in areas that the ratio of decompression bears pressure by piston self decides and is certain value; When needing to regulate decompression ratio, after rotation push rod makes the two ends of spring be oppressed, continue again to rotate push rod, along with spring is further compressed gradually, the pressure of spring to piston increases gradually, the hydraulic pressure of the water outlet of this stepless reduction valve then can increase gradually, and both along with spring is by compression degree increase gradually, Pressure reducing ratio regular meeting reduced gradually.As can be seen here, the step-less adjustment by regulating push rod can realize decompression ratio.
The present invention is rational in infrastructure, reliable performance, and it is easy to adjust, accurate, and regulation range is comparatively large, and it can guarantee pressure of supply water, can save pressure regulation cost again.
Accompanying drawing explanation
Fig. 1 is the structural drawing of one embodiment of the invention;
Fig. 2 is the A portion enlarged view of Fig. 1;
Fig. 3 is the B portion enlarged view of Fig. 1.
Embodiment
The present invention is further illustrated below in conjunction with embodiment and accompanying drawing.
See Fig. 1
Valve seat 4 is provided with in the valve body 1 of stepless reduction valve provided by the invention, valve body 1 has water intake 1a and water outlet 1b, piston 2 with its Spielpassung is housed in valve seat 4, the guide sleeve 5 with piston 2 axis being parallel is connected with bottom valve body 1, the axis coaxle of guide sleeve 5 and piston 2 in the present embodiment, guide sleeve 5 lower end is connected with end cap 12, the lower end of piston 2 extends in guide sleeve 5, through there being the push rod 11 with its screw-thread fit on end cap 12, guide sleeve 5 is built with spring 7, the lower end of spring 7 is by the upper end bearing of push rod 11, the upper end of spring 7 and the lower end of piston 2 close.
See Fig. 1, Fig. 3
In the present embodiment, the lower end of spring 7 is enclosed within a lower spring cup 8, the bottom of lower spring cup 8 has counterbore 8a, the upper end of push rod 11 stretches in counterbore 8a, a steel ball 9 is provided with in counterbore 8a, steel ball 9 and push rod 11 and lower spring cup 8 against, a upper spring seat 6 is equipped with in the lower end of piston 2, and the upper end of spring 7 is enclosed within front spring seat 6.In addition, nut 10 is equipped with at the position that push rod 11 is positioned at outside end cap 12.Can by push rod 11 tightening by nut 10.
See Fig. 1, Fig. 2
In the present embodiment, in the outside of valve seat 4 upper end, one axle sleeve 3 is housed, the inwall of axle sleeve 3 circumferentially has a groove 3a, axle sleeve 3 is circumferentially evenly equipped with one group of weep hole 3b communicated with groove 3a, the upper end portion of valve seat 4 has one group of through hole 4a, and through hole 4a communicates with groove 3a.When the current by this stepless reduction valve are the situation of small flow, at spring 7 place in the on-compressed state, the outlet of valve seat 4 upper end can be closed by the upper end portion of piston 2, now, current are entered by water intake 1a, from through hole 4a and weep hole 3b by, discharged by water outlet 1b, this stepless reduction valve, under the situation of small flow, still can be stablized, reduce pressure reliably.
As seen from Figure 1, when this stepless reduction valve uses in water system, when spring 7 is in non-compressed state, piston 2 is issued to balance in the hydraulic pressure effect of water intake 1a and water outlet 1b, it is by certainty ratio decompression, the difference in areas that the ratio of its decompression self bears pressure by piston 2 decides, now, two kinds of situations are had by the trend of the current of this stepless reduction valve, a kind of is in the normal situation of the flow of current, the outlet of valve seat 4 upper end is opened, current are entered by water intake 1a, pass through from the outlet of valve seat 4 upper end, discharged by water outlet 1b, another kind is when the flow of current is less, the outlet of valve seat 4 upper end is closed by piston 2 upper end portion, current are entered by water intake 1a, pass through from through hole 4a and weep hole 3b, discharged by water outlet.When needing the hydraulic pressure adjusting mouth of a river 1b, rotate push rod 11 spring 7 is compressed, piston 2 rises, piston 2 is issued to new balance in the hydraulic pressure effect of the hydraulic pressure of water intake 1a, the pressure of spring 7 and water outlet 1b, the hydraulic pressure of water outlet 1b then increases, push rod 11 is rotated if continue, along with spring 7 is further compressed, the pressure of spring 7 pairs of pistons 2 increases gradually, the hydraulic pressure of water outlet 1b then can increase gradually, both along with spring 7 is by compression degree increase gradually, the hydraulic pressure of water outlet 1b can increase gradually, and Pressure reducing ratio regular meeting reduces gradually.As can be seen here, the step-less adjustment by regulating push rod can realize decompression ratio.
Claims (4)
1. stepless reduction valve, valve seat is provided with in valve body, piston with its Spielpassung is housed in valve seat, it is characterized in that: body base is connected with the guide sleeve parallel with piston axis, guide sleeve lower end is connected with end cap, and the lower end of piston extends in guide sleeve, through there being the push rod with its screw-thread fit on end cap, guide sleeve built with spring, the lower end of spring by the upper end bearing of push rod, the upper end of spring and the lower end of piston close.
2. stepless reduction valve according to claim 1, it is characterized in that: the lower end of spring is enclosed within a lower spring cup, the bottom of lower spring cup has counterbore, the upper end of push rod stretches in counterbore, a steel ball is provided with in counterbore, steel ball and push rod and lower spring cup against, a upper spring seat is equipped with in the lower end of piston, and the upper end of spring is enclosed within upper spring seat.
3. stepless reduction valve according to claim 1, it is characterized in that: in the outside of valve seat upper end, one axle sleeve is housed, the inwall of axle sleeve circumferentially has a groove, axle sleeve is circumferentially evenly equipped with one group of weep hole communicated with groove, the upper end portion of valve seat has one group of through hole, and through hole communicates with groove.
4. stepless reduction valve according to claim 1, is characterized in that: push rod is positioned on the position outside end cap and nut is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610029786.9A CN105508675B (en) | 2016-01-16 | 2016-01-16 | Stepless pressure-reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610029786.9A CN105508675B (en) | 2016-01-16 | 2016-01-16 | Stepless pressure-reducing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105508675A true CN105508675A (en) | 2016-04-20 |
| CN105508675B CN105508675B (en) | 2018-01-26 |
Family
ID=55716871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610029786.9A Active CN105508675B (en) | 2016-01-16 | 2016-01-16 | Stepless pressure-reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105508675B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3911947A (en) * | 1973-02-05 | 1975-10-14 | Martonair Ltd | Manually-adjustable pressure regulator |
| CN201672118U (en) * | 2010-05-07 | 2010-12-15 | 常州市汇丰船舶附件制造有限公司 | High pressure gas pressure reducer valve |
| CN201851684U (en) * | 2010-11-09 | 2011-06-01 | 蔡助成 | Novel pressure-reducing valve |
| CN203730774U (en) * | 2014-01-17 | 2014-07-23 | 宁波星箭航天机械有限公司 | High pressure gas pressure reducing valve |
| CN103963768A (en) * | 2013-02-05 | 2014-08-06 | 罗伯特·博世有限公司 | Brake valve and hydrostatic drive system with the same |
| CN205781161U (en) * | 2016-01-16 | 2016-12-07 | 王景熙 | Stepless air relief valve |
-
2016
- 2016-01-16 CN CN201610029786.9A patent/CN105508675B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3911947A (en) * | 1973-02-05 | 1975-10-14 | Martonair Ltd | Manually-adjustable pressure regulator |
| CN201672118U (en) * | 2010-05-07 | 2010-12-15 | 常州市汇丰船舶附件制造有限公司 | High pressure gas pressure reducer valve |
| CN201851684U (en) * | 2010-11-09 | 2011-06-01 | 蔡助成 | Novel pressure-reducing valve |
| CN103963768A (en) * | 2013-02-05 | 2014-08-06 | 罗伯特·博世有限公司 | Brake valve and hydrostatic drive system with the same |
| CN203730774U (en) * | 2014-01-17 | 2014-07-23 | 宁波星箭航天机械有限公司 | High pressure gas pressure reducing valve |
| CN205781161U (en) * | 2016-01-16 | 2016-12-07 | 王景熙 | Stepless air relief valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105508675B (en) | 2018-01-26 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211223 Address after: 232008 Shangyao industrial cluster, Datong District, Huainan City, Anhui Province Patentee after: Huainan Huayi Tai'an Electromechanical Equipment Co.,Ltd. Address before: 232007 Huainan Huayi Taian Electromechanical Equipment Co., Ltd. behind Mingmen Hotel, Shungeng Middle Road, tianjia'an District, Huainan City, Anhui Province Patentee before: Wang Jingxi |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Stepless pressure reducing valve Effective date of registration: 20230920 Granted publication date: 20180126 Pledgee: Huainan Huaishun Road Branch of Huishang Bank Co.,Ltd. Pledgor: Huainan Huayi Tai'an Electromechanical Equipment Co.,Ltd. Registration number: Y2023980057589 |