CN110553069B - Fluid pressure stabilizing valve - Google Patents
Fluid pressure stabilizing valve Download PDFInfo
- Publication number
- CN110553069B CN110553069B CN201910925105.0A CN201910925105A CN110553069B CN 110553069 B CN110553069 B CN 110553069B CN 201910925105 A CN201910925105 A CN 201910925105A CN 110553069 B CN110553069 B CN 110553069B
- Authority
- CN
- China
- Prior art keywords
- valve core
- end cover
- hole
- sealing
- fluid 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.)
- Active
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 30
- 230000000087 stabilizing effect Effects 0.000 title abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000005192 partition Methods 0.000 claims abstract description 10
- 229920001971 elastomer Polymers 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 abstract description 6
- 239000000806 elastomer Substances 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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
-
- 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
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a fluid pressure stabilizing valve which comprises a shell, a valve core, an elastomer, an upper end cover, a supporting seat and a lower end cover. The inside of the shell is divided into a water inlet cavity and an air cavity through a partition plate, the upper part of the wall surface of the air cavity is provided with an exhaust hole, the supporting seat is arranged above the partition plate, and the upper end cover is arranged at the upper end part of the shell. The baffle is provided with a through hole, one end of the valve core penetrates through the through hole and is inserted into the supporting seat, the elastic body is nested on the valve core, the lower end cover is fixedly arranged at the lower end part of the shell, the lower end cover is provided with a water outlet hole, and the valve core is internally provided with an overflow hole. The upper end cover comprises an end cover body and a sealing piece, wherein an upper counter bore and a lower counter bore are respectively formed in the upper part and the lower part of the end cover body, a through hole is formed between the upper counter bore and the lower counter bore, the sealing piece comprises an upper sealing part and a lower sealing part which are respectively used for sealing the upper counter bore and the lower counter bore, and the upper sealing part and the lower sealing part are connected into a whole through secondary injection molding. The invention can tightly connect the sealing element and the upper end cover, and can not break away due to the too high fluid speed.
Description
Technical Field
The invention relates to the technical field of pressure reducing devices, in particular to a fluid pressure stabilizing valve.
Background
In the conventional pressure reducing valve, in order to achieve a completely closed state, a gasket is placed on one side of a valve core of an upper end cover to achieve complete sealing, and as shown in fig. 1, in the conventional pressure reducing valve, a gasket 9 is arranged at the bottom of the upper end cover and is positioned right above the valve core. There is a potential risk of placing the spacer 9: when fluid flows into the pressure reducing valve from the water inlet hole of the upper end cover at a high speed, negative pressure is generated on the valve core side of the upper end cover, and the gasket 9 placed at the moment is separated from the upper end cover in a negative pressure state, so that the function of the pressure reducing valve is disabled.
Disclosure of Invention
The invention aims to provide the fluid pressure stabilizing valve, which is simple to assemble and reliable in structure, and sealing elements are formed by secondary glue injection.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
A fluid pressure stabilizing valve comprises a shell, a valve core, an elastomer, an upper end cover, a supporting seat and a lower end cover, wherein the interior of the shell is divided into a water inlet cavity and an air cavity through a partition plate, and an exhaust hole is formed in the upper portion of the wall surface of the air cavity. The upper end cover is arranged at the upper end part of the shell and props against the supporting seat, and a water inlet communicated with the water inlet cavity is formed in the upper end cover. The center of the partition plate is provided with a through hole, one end of the valve core penetrates through the through hole from bottom to top and is inserted into the supporting seat, and the elastic body is nested on the valve core and is in a compressed state. The lower end cover is fixedly arranged at the lower end part of the shell and props against the valve core, a water outlet hole is formed in the lower end cover, and a flow through hole used for communicating the water inlet cavity and the water outlet hole is formed in the valve core. The upper end cover comprises an end cover body and a sealing piece, wherein an upper counter bore and a lower counter bore are respectively formed in the upper part and the lower part of the center of the end cover body, a through hole is formed between the upper counter bore and the lower counter bore, the sealing piece comprises an upper sealing part and a lower sealing part which are respectively used for sealing the upper counter bore and the lower counter bore, and the upper sealing part and the lower sealing part are connected into a whole through secondary injection molding.
Further, the through holes are arranged in a plurality, and the through holes are circumferentially distributed, linearly distributed or crisscrossed distributed.
Further, a plurality of hooks are circumferentially arranged on the side edge of the upper end cover, and a plurality of clamping holes for clamping the hooks are circumferentially arranged on the upper end part of the shell.
Further, the supporting seat comprises an integrally formed supporting plate and an annular boss, the annular boss is arranged below the supporting plate, a circle of annular steps are arranged on the upper portion of the water inlet cavity, the upper surface and the lower surface of the supporting plate are respectively abutted to the annular steps and the upper end cover, a valve core hole for the valve core to penetrate out is formed in the supporting plate, and a Y-shaped sealing ring is arranged between the annular boss and the outer wall of the valve core.
Further, the valve core comprises an integrally formed valve core body and a valve core seat, the valve core body is vertically arranged at the top of the central position of the valve core seat, the overflow hole completely penetrates through the valve core body and the valve core seat, a first sealing ring groove is formed in the outer wall of the valve core seat, and a Y-shaped sealing ring used for being in sealing fit with the wall surface of the air cavity is arranged in the first sealing ring groove.
Further, a second sealing ring groove is respectively formed in the upper part and the lower part of the outer wall of the shell, and an O-shaped sealing ring is arranged in the second sealing ring groove.
Further, the water inlet holes are provided with a plurality of water inlet holes, and the positions of the water inlet holes and the positions of the overflow holes are staggered respectively.
Preferably, the elastomer is a spring or rubber.
Further, the sealing member is made of TPR or TPE or silica gel.
The invention has the following beneficial effects: the invention provides a fluid pressure stabilizing valve, which adopts a sealing piece to replace the existing gasket, and due to the small size of a valve body, the scheme of the invention is adopted, so that the complex screw locking is avoided, the space is saved, the assembly complexity is reduced, the miniaturization of products is facilitated, and the adhesive force generated by secondary glue injection and the tension of a middle cylinder are ensured, so that the structure is reliable.
Drawings
Fig. 1 is a schematic view showing the internal structure of a pressure reducing valve in the prior art.
Fig. 2 is an exploded view of the components of the fluid pressure regulator valve of the present invention.
Fig. 3 is a schematic cross-sectional structure of the upper end cap.
Fig. 4 is a schematic perspective view of the upper end cap.
Fig. 5 is a schematic perspective view of another angle of the upper end cap.
Fig. 6 is a schematic perspective view of a seal.
Fig. 7 is a pressure reducing process diagram of the pressure stabilizing valve, wherein fig. 7 (a) is in a start state, fig. 7 (b) is in a pressure reducing state, and fig. 7 (c) is in a closed state.
FIG. 8 is a force diagram of a valve core.
Description of main reference numerals: 1. a housing; 10. a partition plate; 100. a through hole; 101. a water inlet cavity; 102. an air chamber; 103. an exhaust hole; 104. a second seal ring groove; 105. an annular step; 106. a clamping hole; 2. a valve core; 20. an overflow hole; 21. a valve core body; 22. a valve core seat; 220. a first seal ring groove; 3. an elastomer; 4. an upper end cap; 40. a water inlet hole; 400. a clamping hook; 41. an end cap body; 411. a counter bore is formed; 412. a lower counter bore; 413. a through hole; 42. a seal; 421. an upper sealing part; 422. a lower sealing part; 423. a connecting column; 5. a support base; 51. a support plate; 510. a valve core hole; 52. an annular boss; 6. a lower end cap; 60. a water outlet hole; 7. an O-shaped sealing ring; 8. and a Y-shaped sealing ring.
Detailed Description
The invention will be further described with reference to the drawings and detailed description.
As shown in fig. 2 to 8, a fluid pressure stabilizing valve includes a housing 1, a valve core 2, an elastic body 3, an upper end cover 4, a support seat 5, and a lower end cover 6. The inside of the shell 1 is divided into a water inlet cavity 101 and an air cavity 102 by a partition board 10, and the upper part of the wall surface of the air cavity 102 is provided with a vent hole 103. The upper part and the lower part of the outer wall of the shell 1 are respectively provided with a second sealing ring groove 104, and an O-shaped sealing ring 7 is arranged in the second sealing ring groove 104.
The valve core 2 comprises an integrally formed valve core body 21 and a valve core seat 22, the valve core body 21 is vertically arranged at the top of the central position of the valve core seat 22, an overflow hole for communicating the water inlet cavity 101 and the water outlet hole 60 is formed in the valve core 2, the overflow hole 20 completely penetrates through the valve core body 21 and the valve core seat 22, a first sealing ring groove 220 is formed in the outer wall of the valve core seat 22, and a Y-shaped sealing ring 8 used for being in sealing fit with the wall surface of the air cavity 102 is arranged in the first sealing ring groove 220. The lower end cover 6 is fixedly arranged at the lower end part of the shell 1 and props against the valve core seat 22, and the lower end cover 6 is provided with a water outlet hole 60.
The supporting seat 5 comprises an integrally formed supporting plate 51 and an annular boss 52, the annular boss 52 is arranged below the supporting plate 51, a circle of annular step 105 is arranged on the upper portion of the water inlet cavity 101, the upper surface and the lower surface of the supporting plate 51 are respectively abutted to the annular step 105 and the bottom of the upper end cover 4, a valve core hole 510 for the valve core body 21 to penetrate out is formed in the supporting plate 51, and a Y-shaped sealing ring 7 is arranged between the annular boss 52 and the outer wall of the valve core 2.
The upper end cover 4 is arranged at the upper end part of the shell 1 and props against the supporting plate 51, the upper end cover 4 is provided with a plurality of water inlets 40 communicated with the water inlet cavity 101, and the positions of the water inlets 40 are staggered with the positions of the overflow holes 20 respectively. A through hole 100 is formed in the center of the partition plate 10, one end of the valve core body 21 passes through the through hole 100 from bottom to top and is inserted into the supporting seat 5, the elastic body 3 is arranged in the air cavity 102 and is nested on the valve core body 21, the elastic body 3 is in a compressed state, and the elastic body 3 is preferably a spring or rubber. The side edge circumference of upper end cover 4 is provided with a plurality of pothook 400, and the upper end of shell 1 is provided with a plurality of card hole 106 that supply pothook 400 looks joint along circumference, and upper end cover 4 is fixed at the upper end of shell 1 through the cooperation of pothook 400 and card hole 106.
The upper end cover 4 comprises an end cover body 41 and a sealing element 42, wherein an upper counter bore 411 and a lower counter bore 412 are respectively arranged at the upper part and the lower part of the center of the end cover body 41, a plurality of through holes 413 for the secondary injection molding of the sealing element are arranged between the upper counter bore 411 and the lower counter bore 412, and the plurality of through holes 413 are circumferentially distributed or linearly distributed or cross-distributed. The sealing member 42 includes an upper sealing portion 421 and a lower sealing portion 422 for sealing the upper counter bore 411 and the lower counter bore 412, respectively, the upper sealing portion 421 and the lower sealing portion 422 are integrally connected by secondary injection molding, a plurality of connecting posts 423 are formed between the upper sealing portion 421 and the lower sealing portion 422 by secondary injection molding, and the connecting posts 423 fill the through holes 413. The sealing member 42 is made of TPR or TPE or silica gel.
The working principle of the invention is as follows:
Initial state: fluid flows in from the water inlet hole 40, flows into the bottom end position of the valve core 2 through the overflow hole 20 in the middle of the valve core 2, the fluid pressure has an upward acting force on the valve core 2, the elastic body 3 is provided with a precompression F during installation, and when the fluid pressure is smaller than F, the fluid pressure is insufficient to push the valve core 2 to move, and the valve core 2 is kept in an initial state.
Decompression state: the fluid pressure increases until the pressure acting on the bottom end of the valve body 2 is greater than the pre-pressure F of the elastic body 3, and the valve body 2 moves upward under the action of the fluid pressure, so that the fluid pressure flowing through the flow hole 20 decreases, a decompression effect is achieved, and the air in the air chamber 102 is discharged through the air discharge hole 103.
Closed state: when the pipeline connected with the pressure stabilizing valve is blocked or closed, the valve core 2 moves upwards under the action of the fluid pressure until the valve core is closed, and the pressure at the fluid outflow end is stabilized at a certain value P at the moment so as to ensure that the fluid pressure of the pipeline and the product is within a safe range.
By adopting the scheme of the invention, complex screw locking is avoided, space is saved, assembly complexity is reduced, miniaturization of products is facilitated, the upper sealing part 421 and the lower sealing part 422 have certain adhesive force with the upper end cover 4 by virtue of a secondary injection molding mode, and double reinforcement is carried out through the connecting column 423, so that the structure of the whole sealing piece is reliable and is not easy to fall off.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A fluid pressure regulator valve, characterized by: the valve comprises a shell, a valve core, an elastic body, an upper end cover, a supporting seat and a lower end cover, wherein the shell is internally divided into a water inlet cavity and an air cavity through a partition plate, the upper part of the wall surface of the air cavity is provided with an exhaust hole, the supporting seat is arranged above the partition plate, the upper end cover is arranged at the upper end part of the shell and abuts against the supporting seat, the upper end cover is provided with a water inlet hole communicated with the water inlet cavity, the center of the partition plate is provided with a through hole, one end of the valve core passes through the through hole from bottom to top and is inserted into the supporting seat, the elastic body is nested on the valve core and is in a compressed state, the lower end cover is fixedly arranged at the lower end part of the shell and abuts against the valve core, the lower end cover is provided with a water outlet hole, the valve core is internally provided with a water inlet hole and a water outlet hole, the upper end cover body and a sealing piece are respectively provided with an upper counter bore and a lower counter bore at the upper part and the lower part of the center of the upper end cover, a through hole and the lower counter bore are respectively provided with a through hole, and the sealing piece comprises an upper sealing part and a lower sealing part and a lower sealing part which are respectively connected with an integral counter bore through the sealing part.
2. A fluid pressure regulator valve according to claim 1, wherein: the through holes are circumferentially distributed or in a straight line or cross.
3. A fluid pressure regulator valve according to claim 1, wherein: the side edge circumference of upper end cover is provided with a plurality of pothook, the upper end of shell is provided with a plurality of confession the draw-in hole of pothook looks joint along circumference.
4. A fluid pressure regulator valve according to claim 1, wherein: the support seat comprises an integrally formed support plate and an annular boss, the annular boss is arranged below the support plate, a circle of annular steps are arranged on the upper portion of the water inlet cavity, the upper surface and the lower surface of the support plate are respectively abutted to the annular steps and the upper end cover, a valve core hole for the valve core to penetrate out is formed in the support plate, and a Y-shaped sealing ring is arranged between the annular boss and the outer wall of the valve core.
5. A fluid pressure regulator valve according to claim 1, wherein: the valve core comprises an integrally formed valve core body and a valve core seat, the valve core body is vertically arranged at the top of the central position of the valve core seat, the overflow hole completely penetrates through the valve core body and the valve core seat, a first sealing ring groove is formed in the outer wall of the valve core seat, and a Y-shaped sealing ring used for being in sealing fit with the wall surface of the air cavity is arranged in the first sealing ring groove.
6. A fluid pressure regulator valve according to claim 1, wherein: the upper part and the lower part of the outer wall of the shell are respectively provided with a second sealing ring groove, and an O-shaped sealing ring is arranged in the second sealing ring groove.
7. A fluid pressure regulator valve according to claim 1, wherein: the water inlet holes are arranged in a plurality, and the positions of the water inlet holes and the positions of the overflow holes are staggered respectively.
8. A fluid pressure regulator valve according to any one of claims 1-7, wherein: the elastic body is a spring or rubber.
9. A fluid pressure regulator valve according to any one of claims 1-7, wherein: the sealing piece is made of TPR or TPE or silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910925105.0A CN110553069B (en) | 2019-09-27 | 2019-09-27 | Fluid pressure stabilizing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910925105.0A CN110553069B (en) | 2019-09-27 | 2019-09-27 | Fluid pressure stabilizing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110553069A CN110553069A (en) | 2019-12-10 |
| CN110553069B true CN110553069B (en) | 2024-05-24 |
Family
ID=68741739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910925105.0A Active CN110553069B (en) | 2019-09-27 | 2019-09-27 | Fluid pressure stabilizing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110553069B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032382A (en) * | 2020-09-10 | 2020-12-04 | 南安市丽迪家居用品有限公司 | Constant pressure water-saving valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1596533A (en) * | 1977-11-18 | 1981-08-26 | Coca Cola Co | Pressure relief valves |
| CN102840365A (en) * | 2011-06-22 | 2012-12-26 | 浙江三花股份有限公司 | Pressure reduction and stabilization valve |
| CN202629253U (en) * | 2012-03-31 | 2012-12-26 | 郭悦锋 | Water-gas linkage valve ignition safety device with pressure stabilizing valve |
| CN206386532U (en) * | 2016-12-06 | 2017-08-08 | 宁波福特恩净水设备有限公司 | A kind of pressure maintaining valve and water purifier |
| CN208397378U (en) * | 2018-06-26 | 2019-01-18 | 厦门云智共创科技有限公司 | A kind of pressure reducing valve |
| CN208474572U (en) * | 2018-06-26 | 2019-02-05 | 厦门云智共创科技有限公司 | A kind of pressure reducing valve with inverse-stopping functions |
| CN210566499U (en) * | 2019-09-27 | 2020-05-19 | 谷力(厦门)科技有限公司 | Fluid pressure stabilizing valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080164432A1 (en) * | 2007-01-05 | 2008-07-10 | Goodrich Corporation | Floating Lifter Pressure Relief Valve |
-
2019
- 2019-09-27 CN CN201910925105.0A patent/CN110553069B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1596533A (en) * | 1977-11-18 | 1981-08-26 | Coca Cola Co | Pressure relief valves |
| CN102840365A (en) * | 2011-06-22 | 2012-12-26 | 浙江三花股份有限公司 | Pressure reduction and stabilization valve |
| CN202629253U (en) * | 2012-03-31 | 2012-12-26 | 郭悦锋 | Water-gas linkage valve ignition safety device with pressure stabilizing valve |
| CN206386532U (en) * | 2016-12-06 | 2017-08-08 | 宁波福特恩净水设备有限公司 | A kind of pressure maintaining valve and water purifier |
| CN208397378U (en) * | 2018-06-26 | 2019-01-18 | 厦门云智共创科技有限公司 | A kind of pressure reducing valve |
| CN208474572U (en) * | 2018-06-26 | 2019-02-05 | 厦门云智共创科技有限公司 | A kind of pressure reducing valve with inverse-stopping functions |
| CN210566499U (en) * | 2019-09-27 | 2020-05-19 | 谷力(厦门)科技有限公司 | Fluid pressure stabilizing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110553069A (en) | 2019-12-10 |
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