CN201891882U - Adjustable pressure relief and pressure holding valve - Google Patents
Adjustable pressure relief and pressure holding valve Download PDFInfo
- Publication number
- CN201891882U CN201891882U CN 201020557305 CN201020557305U CN201891882U CN 201891882 U CN201891882 U CN 201891882U CN 201020557305 CN201020557305 CN 201020557305 CN 201020557305 U CN201020557305 U CN 201020557305U CN 201891882 U CN201891882 U CN 201891882U
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- valve body
- horizontal
- regulating sleeve
- adjustable pressure
- pressure
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Abstract
The utility model relates to an adjustable pressure relief and pressure holding valve which is characterized in that the adjustable pressure relief and pressure holding valve is provided with a right-angled three-way valve body; the right-angled three-way valve body consists of an upper valve body and a horizontal valve body; the horizontal valve body, which is close to the direction of a water inlet, is provided with a screw hole for installing a pressure gauge; the horizontal valve body, which is close to the direction of a water outlet, is provided with a separation wall; the connection part of the upper valve body and the horizontal valve body, which is close to the direction of the water outlet of the separation wall, is provided with a water outlet hole obliquely intersected with the axis of the horizontal valve body; a conical hole is arranged in the middle of the horizontal valve body; an adjusting sleeve is internally in sliding fit with a valve hole of the upper valve body; a valve core shaft matched with the conical hole is installed in the center of the adjusting sleeve; and a locking nut and a hand wheel connected with the adjusting sleeve are arranged on the external diameter position of the upper valve body in a screwing manner. The adjustable pressure relief and pressure holding valve has a simple structure, a wide pressure regulation range and is convenient to adjust the opening pressure as required, and also can be used as a pressure holding valve for maintaining stable water supply pressure.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of pressure release/holding valve.
Background technique
In water system, using Decompression valves widely,, preventing the rapid rising of pressure and damage pipeline and equipment in order to pressure surge made rapid response and to be released fast.At present valve plant produces 500X type pressure release/holding valve, and the complex structure of this valve, troublesome poeration, cost are higher.
Summary of the invention
The utility model main purpose is to overcome the existing in prior technology deficiency, thereby develops a kind of simple in structure, easy to operate adjustable pressure release/holding valve.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of adjustable pressure release/holding valve, it is characterized in that: have the right-angle tee valve body of forming by upper valve body and horizontal valve body, described horizontal valve body has the screw of a setting pressure table by the water intake direction, by the water outlet direction one next door is arranged, there is an osculum with horizontal valve body axis oblique upper valve body and horizontal valve body joint by the water outlet direction in next door, the middle part of horizontal valve body is provided with conical bore, the sliding regulating sleeve of joining in the valve opening of upper valve body, central authorities at regulating sleeve are equipped with the poppet shaft that matches with conical bore, are installed with locking nut and the handwheel that links to each other with regulating sleeve on the upper valve body external diameter.
The technical solution of the utility model can also be further perfect:
As preferably, the fitting surface of regulating sleeve and upper valve body valve opening is equipped with O-ring seals one, and described O-ring seals one moves with regulating sleeve.
As preferably, described upper valve body top is provided with spacing back-up ring, and the stage casing of described regulating sleeve is provided with the shaft shoulder, and the diameter of the described shaft shoulder is greater than spacing back-up ring internal diameter.
As preferably, there is upper shaft lever the upper end of poppet shaft, and there is following axostylus axostyle the lower end, and there is conical spool the centre; Described spool matches with the conical bore at the middle part of horizontal valve body, and the upper shaft lever cunning fits in the pilot hole of regulating sleeve, and following axostylus axostyle cunning is assigned in the pilot hole of corresponding guide plate of horizontal valve body lower end.
As preferably, be provided with the bottom of blind hole in the valve opening of horizontal valve body lower end, guide plate with holes is installed in the described blind hole, the following axostylus axostyle cunning of slide core axle fits in the pilot hole of guide plate.
As preferably, be provided with O-ring seals two in the middle part of the spool;
As preferably, on the upper shaft lever of poppet shaft, be with spring, an end of described spring is located on the shoulder of spool, and the other end is located on the end face of respective interior bores of regulating sleeve.
As preferably, on 1/2nd length of poppet shaft upper shaft lever upper end, be carved with two triangular grooves in diametric(al), the gas-tight phenomenon of top cavity volume when moving to eliminate it improves the sensitivity of motion.
As preferably, the handwheel top have one sink shrinkage pool, there is a through hole at the shrinkage pool middle part, there is axostylus axostyle the upper end of described regulating sleeve, described axostylus axostyle slides in the through hole, and back-up ring one is housed on the described axostylus axostyle.
The beneficial effects of the utility model are: simple in structure, range of regulation is wide, can require to regulate easily cracking pressure according to difference; Also can make holding valve usefulness, keep the stable of pressure of supply water.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Description of reference numerals: 1 valve body, 2 poppet shaft, 3 regulating sleeves, 4 springs, 5 handwheels, 6 back-up rings, one, 7 cover plate, 8 spacing back-up rings, 9O shape seal ring one, 10 locking nut, 11O shape seal ring two, 12 bottoms, 13 sealing gaskets, 14 guide plates, 15 back-up rings two, 16 next doors, 17 screws, a conical bore, the b cone plug, the osculum of c and horizontal valve body axis oblique, d pilot hole.
Embodiment
Below by embodiment also in conjunction with the accompanying drawings, the technical solution of the utility model is further described in detail.
Embodiment:
Adjustable pressure release/holding valve as shown in Figure 1, valve body 1 is a right angle threeway, is made up of upper valve body and horizontal valve body, and horizontal valve body has the screw 17 of a setting pressure table by the water intake direction, by the water outlet direction one next door 16 is arranged, directly flow to water outlet from water intake in order to stop medium.There is an osculum c with horizontal valve body axis oblique upper valve body and horizontal valve body joint by the water outlet direction in next door, so that medium is communicated with water intake and water outlet behind valve open.The middle part of horizontal valve body is provided with conical bore a; Slide in the valve opening of upper valve body and joining regulating sleeve 3, be provided with O-ring seals 1 between fitting surface, it can move up and down with regulating sleeve 3, in case medium leaks; Upper valve body top is provided with spacing back-up ring 8, and the adjusting height that restriction regulating sleeve 3 makes progress is when regulating sleeve 3 transfers to the extreme higher position, the shaft shoulder in its stage casing just in time contacts with the lower end surface of back-up ring 8, limit it and continue upwards, this moment spring 4 the setting height(from bottom) maximum, rigidity is minimum.Otherwise, when locking nut 10 and handwheel 5 when being adjusted downward to extreme lower position, the setting height(from bottom) of spring 4 is the shortest, the rigidity maximum; Poppet shaft 2 is installed in the central authorities of regulating sleeve 3, its center line is consistent with the center line of upper valve body, on 1/2nd length of the axostylus axostyle of poppet shaft 2 upper ends, is carved with two triangular grooves in diametric(al), the gas-tight phenomenon of top cavity volume when moving to eliminate it improves the sensitivity of motion.The upper end cunning of poppet shaft 2 fits among the pilot hole d of regulating sleeve 3, and the axostylus axostyle cunning of its lower end fits in the pilot hole of guide plate 14, can slide up and down along the upper valve body center line at free state lower valve core axle 2.The stage casing of poppet shaft 2 is provided with cone plug b, and its tapering is identical with the tapering of the conical bore a at horizontal valve body middle part, and spool b middle part is provided with O-ring seals 2 11; Spring 4 skies are enclosed within on the axostylus axostyle of poppet shaft 2 upper ends, one end is located on the shoulder of spool b, and the other end is located on the end face of respective interior bores of regulating sleeve 3, and certain pre compressed magnitude is arranged after the assembling, therefore, spring 4 has a thrust that makes spool b press to taper hole a all the time; The internal thread of handwheel 5 and the external thread rotary of upper valve body lump together, and the endoporus of its upper end next door central authorities slides on the axostylus axostyle of regulating sleeve 3 upper ends, and with back-up ring one 6 location, so during handwheel 5 rotations, regulating sleeve 3 can and then not rotate, and can only move up and down.Can clockwise or rotate counterclockwise handwheel 5 according to different cracking pressures, adjust and finish back locking nut 10 lockings.All rolled straight burr on the excircle of handwheel 5 and locking nut 10.There is a lug below at horizontal valve body middle part, is screwing bottom 12 in the lug, and the top of bottom 12 is provided with guide plate 14, guide plate 14 usefulness back-up rings 2 15 location, and sealing gasket 13 leaks in order to prevent medium.
Working principle of the present utility model:
When intake pressure did not reach cracking pressure, the conical surface of spool b had been pressed under the pressure of spring 4 on the conical surface of valve opening a, at this moment, valve closing, O-ring seals 2 11 seals, and prevents dielectric leakage; When hydraulic pressure reaches or during greater than cracking pressure, high-pressure medium overcomes the pressure of spring 4, promote poppet shaft 2 and move up, spool b leaves valve opening a, valve open, high-pressure medium flows out from water outlet through gap between the two and inclined hole c.Like this, in water system, can prevent the rapid rising of pressure and damage pipeline and equipment or keep pressure of supply water stable.Improve if desired or reduce cracking pressure, after unscrewing locking nut 10, clockwise or rotate counterclockwise handwheel 5 to correct position and get final product, because the change of spring setting height(from bottom), its rigidity is also change thereupon of cracking pressure.The cracking pressure value when water outlet has the water ejection, can be read from pressure gauge after feeding high pressure water.After adjusting end, must lock with locking nut 10.
Claims (9)
1. adjustable pressure release holding valve, it is characterized in that: have the right-angle tee valve body of forming by upper valve body and horizontal valve body, described horizontal valve body has the screw (17) of a setting pressure table by the water intake direction, by the water outlet direction one next door (16) is arranged, there is an osculum (c) with horizontal valve body axis oblique upper valve body and horizontal valve body joint by the water outlet direction in next door, the middle part of horizontal valve body is provided with conical bore (a), the sliding regulating sleeve (3) of joining in the valve opening of upper valve body, central authorities at regulating sleeve (3) are equipped with the poppet shaft (2) that matches with conical bore (a), are installed with locking nut (10) and the handwheel (5) that links to each other with regulating sleeve (3) on the upper valve body external diameter.
2. adjustable pressure release holding valve according to claim 1 is characterized in that: regulating sleeve (3) is equipped with O-ring seals one (9) with the fitting surface of upper valve body valve opening, and described O-ring seals one (9) moves with regulating sleeve (3).
3. adjustable pressure release holding valve according to claim 1 and 2 is characterized in that: upper valve body top is provided with spacing back-up ring (8), and the stage casing of regulating sleeve (3) is provided with the shaft shoulder, and the external diameter of the described shaft shoulder is greater than spacing back-up ring internal diameter.
4. adjustable pressure release holding valve according to claim 1 and 2 is characterized in that: there is upper shaft lever the upper end of poppet shaft (2), and there is following axostylus axostyle the lower end, and there is conical spool (b) centre; Described spool (b) matches with the conical bore (a) at the middle part of horizontal valve body, and the upper shaft lever cunning fits in the pilot hole (d) of regulating sleeve (3), and following axostylus axostyle cunning is assigned in the hole of the corresponding guide plate of horizontal valve body lower end (14).
5. adjustable pressure release holding valve according to claim 4, it is characterized in that: the bottom (12) that is provided with blind hole in the valve opening of horizontal valve body lower end, guide plate with holes (14) is installed in the described blind hole, and the following axostylus axostyle cunning of poppet shaft (2) fits in the pilot hole of guide plate (14).
6. adjustable pressure release holding valve according to claim 4 is characterized in that: spool (b) middle part is provided with O-ring seals two (11).
7. adjustable pressure release holding valve according to claim 4, it is characterized in that: on the upper shaft lever of poppet shaft (2), be with spring (4), one end of described spring is located on the shoulder of spool (b), and the other end is located on the end face of regulating sleeve (3) respective interior bores.
8. adjustable pressure release holding valve according to claim 4 is characterized in that: on 1/2nd length of poppet shaft (2) upper shaft lever upper end, be carved with two triangular grooves in diametric(al).
9. adjustable pressure release holding valve according to claim 1 and 2, it is characterized in that: handwheel (5) top have one sink pit, there is a through hole at the pit middle part, there is axostylus axostyle the upper end of regulating sleeve (3), described axostylus axostyle passes handwheel (5) through hole and slides in the through hole, and back-up ring one (6) is housed on the described axostylus axostyle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020557305 CN201891882U (en) | 2010-10-12 | 2010-10-12 | Adjustable pressure relief and pressure holding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020557305 CN201891882U (en) | 2010-10-12 | 2010-10-12 | Adjustable pressure relief and pressure holding valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201891882U true CN201891882U (en) | 2011-07-06 |
Family
ID=44221359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020557305 Expired - Lifetime CN201891882U (en) | 2010-10-12 | 2010-10-12 | Adjustable pressure relief and pressure holding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201891882U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147027A (en) * | 2010-10-12 | 2011-08-10 | 杭州春江阀门有限公司 | Adjustable pressure-relieving/holding valve |
| CN102996433A (en) * | 2012-10-31 | 2013-03-27 | 镇江宝城注浆设备有限公司 | Grouting pump safety valve |
| CN105485388A (en) * | 2016-01-19 | 2016-04-13 | 何祥军 | Pressure release valve of gear pump |
-
2010
- 2010-10-12 CN CN 201020557305 patent/CN201891882U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147027A (en) * | 2010-10-12 | 2011-08-10 | 杭州春江阀门有限公司 | Adjustable pressure-relieving/holding valve |
| CN102996433A (en) * | 2012-10-31 | 2013-03-27 | 镇江宝城注浆设备有限公司 | Grouting pump safety valve |
| CN105485388A (en) * | 2016-01-19 | 2016-04-13 | 何祥军 | Pressure release valve of gear pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110706 |
|
| CX01 | Expiry of patent term |