CN203516874U - Constant-pressure valve - Google Patents
Constant-pressure valve Download PDFInfo
- Publication number
- CN203516874U CN203516874U CN201320594210.9U CN201320594210U CN203516874U CN 203516874 U CN203516874 U CN 203516874U CN 201320594210 U CN201320594210 U CN 201320594210U CN 203516874 U CN203516874 U CN 203516874U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- spool
- valve element
- pressure
- 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
Images
Landscapes
- Safety Valves (AREA)
Abstract
A constant-pressure valve comprises a valve body, a valve element assembly and a pressure adjusting assembly. The valve body is provided with a water inlet, a water outlet and a valve cavity, and the valve cavity is communicated with the water outlet. The constant-pressure valve is characterized in that the valve element assembly comprises a valve seat, a valve element and a valve element spring, a valve element mounting cavity which is communicated with the water inlet is formed between the valve seat and the valve body, and the valve element and the valve element spring are sequentially arranged in the valve element mounting cavity. A through hole which is communicated with the valve element mounting cavity and the valve cavity is formed in the valve body, the upper conical face of the valve element is movably arranged on the lower portion of the through hole, a decompression seam is formed between the upper conical face of the valve element and the through hole, the lower portion of the valve element is pre-pressed and limited by the valve element spring, and the upper end of the valve element extends upwards to form a top rod matched with the pressure adjusting assembly. The pressure adjusting assembly comprises a sealing film clack which seals the upper portion of the valve cavity and a pre-tensioning device, the lower end of the sealing film clack is tightly pressed at the upper end of the top rod of valve element, and the pre-tensioning device is arranged at the upper end of the sealing film clack in movable and tight pressing modes. The constant-pressure valve is simple in structure and capable of automatically adjusting the pressure of a water supply system, so that the water pressure is stabilized, and the constant-pressing valve can be adapted to different liquid environments.
Description
Technical field
The utility model relates to a kind of constant pressure valve, is mainly applicable to intelligent flush toilet.
Background technique
The effect of constant pressure valve is the hydrodynamic pressure in system while reaching setting value, and constant pressure valve starts action, makes fluid pass through constant pressure valve, like this, just guarantees that fluid, by before constant pressure valve, has certain pressure.Existing constant pressure valve complex structure, and when it is because fault is when ineffective, Chang Rongyi causes valve to be closed completely, like this, is just easy to make fluid to make pressure constantly increase to reach dangerous high pressure because not draining in time.Therefore, be necessary to be further improved.
Model utility content
The purpose of this utility model aim to provide a kind of simple in structure, easy to adjust, use safe constant pressure valve, to overcome deficiency of the prior art.
By a kind of constant pressure valve of this object design, comprise valve body, mangetic core assembly and pressure regulation assembly, valve body is provided with water intake, water outlet and valve pocket, valve pocket is communicated with water outlet, its structure characteristic is that mangetic core assembly comprises valve seat, spool and valve core spring, between valve seat and valve body, form a spool installation cavity being communicated with water intake, spool, valve core spring are successively set in spool installation cavity; Valve body is provided with the through hole that is communicated with spool installation cavity and valve pocket, the upper conical surface of spool is movably arranged on the bottom of through hole, on spool, between the conical surface and through hole, form decompression gap, spool bottom is spacing by valve core spring precompressed, and spool upper end extends upward and forms a push rod coordinating with pressure regulation assembly; Pressure regulation assembly comprises sealing film lobe and the pre-tightening apparatus on a closeding valve cavity top, the upper end of sealing film lobe lower end pressed spool push rod, and movable compression of pre-tightening apparatus is arranged on sealing film lobe upper end.
Described valve body is Split type structure, upper valve body and lower valve body, consists of, between upper valve body and lower valve body, through sealing film flap seal, connect, and fastening by set screw.
Described pre-tightening apparatus comprises adjusting nut and Regulation spring, and wherein adjusting nut is threaded in the upper inner of upper valve body, and Regulation spring top is pressed and is arranged between adjusting nut and sealing film lobe.
Described valve seat is plugged on the bottom of lower valve body, between valve seat and lower valve body, through seal ring, is tightly connected, and fastening by set screw.
The bottom of described valve seat is provided with one with upper groove, and groove is provided with the pilot hole being connected with set screw.
The utility model is simple in structure, can to the pressure of water system, adjust voluntarily, thereby make stable water pressure, can adapt to different liquid environments.
Accompanying drawing explanation
Fig. 1 is the utility model one embodiment's decomposition texture schematic diagram;
Fig. 2 is main TV structure sectional drawing of the embodiment.
In figure, arrow points is flow direction.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Referring to Fig. 1-Fig. 2, a kind of constant pressure valve, comprise upper valve body 1, lower valve body 2 and mangetic core assembly and pressure regulation assembly, lower valve body 2 is provided with water intake 2.1, water outlet 2.2 and valve pocket 2.3, valve pocket 2.3 is communicated with water outlet 2.2, mangetic core assembly comprises valve seat 3, spool 4 and valve core spring 5, between valve seat 3 and lower valve body 2, forms a spool installation cavity 2.4 being communicated with water intake 2.1, and spool 4, valve core spring 6 are successively set in spool installation cavity 2.4; Lower valve body 2 is provided with the through hole 2.5 that is communicated with spool installation cavity 2.4 and valve pocket 2.3, the upper conical surface of spool 4 is movably arranged on the bottom of through hole 2.5, on spool 4, between the conical surface and through hole 2.5, form decompression gap, spool 4 bottoms are spacing by valve core spring 5 precompressed, and spool 4 upper ends extend upward and form a push rod coordinating with pressure regulation assembly; Pressure regulation assembly comprises sealing film lobe 6 and the pre-tightening apparatus on closeding valve cavity 2.4 tops, the upper end of sealing film lobe 6 lower end pressed spool 4 push rods, and movable compression of pre-tightening apparatus is arranged on sealing film lobe 6 upper ends.
Between upper valve body 1 and lower valve body 2, through sealing film lobe 6, be tightly connected, and fastening by set screw 9.Pre-tightening apparatus comprises adjusting nut 7 and Regulation spring 8, and wherein adjusting nut 7 is threaded in the upper inner of upper valve body 1, and Regulation spring 8 tops are pressed and are arranged between adjusting nut 7 and sealing film lobe 6.By turning adjusting nut 7, the pretightening force of Regulation spring 8 is changed.Valve seat 3 is plugged on the bottom of lower valve body 2, between valve seat 3 and lower valve body 2, through seal ring 10, is tightly connected, and fastening by set screw 9.The bottom of valve seat 3 is provided with four grooves 3.1, is equipped with a pilot hole 3.2 being connected with set screw 9 in each groove 3.1, when this structure is fastening by valve seat 3 and lower valve body 2, valve seat 2 can smoothly be placed.
Working principle:
1. when extraneous hydraulic pressure surpasses the hydraulic pressure that constant pressure valve sets when (as: 0.15MPa), water feeding pressure and valve core spring 5 up move spool 4, gap smaller on spool 4 between the conical surface and through hole 2.5, reduce the water outlet flow of through hole 2.4, and be pressed into a new balance with Regulation spring 8, pressure stability is being set on hydraulic pressure.
2. when extraneous hydraulic pressure surpasses the pressure of constant pressure valve setting, due to the effect of Regulation spring 8, spool 4 past pressing down together with valve core spring 5, it is large that the gap on spool 4 between the conical surface and through hole 2.5 becomes, increase the water flow of through hole 2.5, thereby do not affected the normal flow rate of constant pressure valve.
3. when adjusting nut 7 is when up (direction of unclamping) twists, constant pressure valve will up move spool 4 under the effect at valve core spring 5, thereby shuts constant pressure valve, plays the effect in water route below of protecting.
4. when adjusting nut 7 is when down (compress Regulation spring 8 directions) twists, set the work water pressure (being no more than 0.2MPa) of constant pressure valve.
The utility model is not only limited to above-mentioned example, and in essential scope of the present utility model, the variation of making, remodeling, increase or replacement, also belong to protection domain of the present utility model.
Claims (5)
1. a constant pressure valve, comprise valve body, mangetic core assembly and pressure regulation assembly, valve body is provided with water intake (2.1), water outlet (2.2) and valve pocket (2.3), valve pocket is communicated with water outlet, it is characterized in that mangetic core assembly comprises valve seat (3), spool (4) and valve core spring (5), between valve seat and valve body, form a spool installation cavity (2.4) being communicated with water intake, spool, valve core spring are successively set in spool installation cavity; Valve body is provided with the through hole (2.5) that is communicated with spool installation cavity and valve pocket, the upper conical surface of spool is movably arranged on the bottom of through hole, on spool, between the conical surface and through hole, form decompression gap, spool bottom is spacing by valve core spring precompressed, and spool upper end extends upward and forms a push rod coordinating with pressure regulation assembly; Pressure regulation assembly comprises sealing film lobe (6) and the pre-tightening apparatus on a closeding valve cavity top, the upper end of sealing film lobe lower end pressed spool push rod, and movable compression of pre-tightening apparatus is arranged on sealing film lobe upper end.
2. constant pressure valve according to claim 1, is characterized in that described valve body is Split type structure, upper valve body (1) and lower valve body (2), consists of, between upper valve body and lower valve body, through sealing film lobe (6), be tightly connected, and fastening by set screw (9).
3. constant pressure valve according to claim 2, it is characterized in that described pre-tightening apparatus comprises adjusting nut (7) and Regulation spring (8), wherein adjusting nut is threaded in the upper inner of upper valve body (1), and Regulation spring top is pressed and is arranged between adjusting nut and sealing film lobe (6).
4. according to the constant pressure valve described in claim 2 or 3, it is characterized in that described valve seat (3) is plugged on the bottom of lower valve body (2), between valve seat and lower valve body, through seal ring (10), be tightly connected, and fastening by set screw (9).
5. constant pressure valve according to claim 4, is characterized in that the bottom of described valve seat (3) is provided with one with upper groove (3.1), and groove is provided with the pilot hole (3.2) being connected with set screw (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320594210.9U CN203516874U (en) | 2013-09-25 | 2013-09-25 | Constant-pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320594210.9U CN203516874U (en) | 2013-09-25 | 2013-09-25 | Constant-pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516874U true CN203516874U (en) | 2014-04-02 |
Family
ID=50375806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320594210.9U Expired - Fee Related CN203516874U (en) | 2013-09-25 | 2013-09-25 | Constant-pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516874U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003722A (en) * | 2015-05-22 | 2015-10-28 | 天津市通洁高压泵制造有限公司 | Pressure adjusting pneumatic valve with overflowing function |
| CN105650317A (en) * | 2014-11-14 | 2016-06-08 | 上海科勒电子科技有限公司 | Film reducing valve |
| CN106870785A (en) * | 2017-04-11 | 2017-06-20 | 卢建之 | Constant pressure valve |
| CN107345582A (en) * | 2016-05-06 | 2017-11-14 | 浙江三花汽车零部件有限公司 | A kind of heat control valve and gear box oil cooling system |
| CN110345286A (en) * | 2019-07-08 | 2019-10-18 | 瑞立集团瑞安汽车零部件有限公司 | A kind of constant pressure limiter valve gear |
| CN111248795A (en) * | 2020-03-15 | 2020-06-09 | 西北工业大学 | Pressure-stabilizing temperature-equalizing self-suction shower |
-
2013
- 2013-09-25 CN CN201320594210.9U patent/CN203516874U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650317A (en) * | 2014-11-14 | 2016-06-08 | 上海科勒电子科技有限公司 | Film reducing valve |
| CN105650317B (en) * | 2014-11-14 | 2018-10-19 | 上海科勒电子科技有限公司 | A kind of thin film pressure reducing valve |
| CN105003722A (en) * | 2015-05-22 | 2015-10-28 | 天津市通洁高压泵制造有限公司 | Pressure adjusting pneumatic valve with overflowing function |
| CN107345582A (en) * | 2016-05-06 | 2017-11-14 | 浙江三花汽车零部件有限公司 | A kind of heat control valve and gear box oil cooling system |
| CN107345582B (en) * | 2016-05-06 | 2019-08-30 | 浙江三花汽车零部件有限公司 | A kind of heat control valve and gear box oil cooling system |
| CN106870785A (en) * | 2017-04-11 | 2017-06-20 | 卢建之 | Constant pressure valve |
| CN110345286A (en) * | 2019-07-08 | 2019-10-18 | 瑞立集团瑞安汽车零部件有限公司 | A kind of constant pressure limiter valve gear |
| CN110345286B (en) * | 2019-07-08 | 2024-04-12 | 瑞立集团瑞安汽车零部件有限公司 | Constant-pressure force-limiting valve device |
| CN111248795A (en) * | 2020-03-15 | 2020-06-09 | 西北工业大学 | Pressure-stabilizing temperature-equalizing self-suction shower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203516874U (en) | Constant-pressure valve | |
| CN105443483A (en) | Overflow valve | |
| CN203258127U (en) | Direct-acting overflow valve | |
| CN104141813A (en) | Direct-acting overflow valve | |
| CN204372240U (en) | Multifunctional non-return valve | |
| CN206496001U (en) | Fluorine-lined bellows regulating valve | |
| CN202417429U (en) | Multifunctional oil well constant pressure air-release valve | |
| CN204628669U (en) | A kind of U-shaped pin quick-acting type reduction valve | |
| CN104632742A (en) | Direct action type reducing valve | |
| CN203892652U (en) | Piston type pressure regulator | |
| CN203730860U (en) | Check valve for flow regulation | |
| CN203979550U (en) | A kind of nuclear power Self-operated pressure reducing valve | |
| CN203656291U (en) | Stacked pressure reducing valve | |
| CN204114188U (en) | Combination throttling fit formula modulating valve | |
| CN207261667U (en) | A kind of shutoff valve | |
| CN203421244U (en) | Direct-acting pressure reduction valve | |
| CN205639632U (en) | Machinery choke valve | |
| CN202691198U (en) | Gas pressure reducing valve | |
| CN201934109U (en) | Ultra-large-flow safety valve | |
| CN205936673U (en) | Relief pressure valve for emulsion | |
| CN203309234U (en) | Gas water heater safety valve | |
| CN201575207U (en) | Constant pressure valve | |
| CN203516875U (en) | Pressure regulation type safety valve for high-pressure gas cylinder | |
| CN203770684U (en) | Valve sealing structure | |
| CN204553959U (en) | Filter pressure regulator valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20180925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |