CN210566499U - Fluid pressure stabilizing valve - Google Patents
Fluid pressure stabilizing valve Download PDFInfo
- Publication number
- CN210566499U CN210566499U CN201921628313.6U CN201921628313U CN210566499U CN 210566499 U CN210566499 U CN 210566499U CN 201921628313 U CN201921628313 U CN 201921628313U CN 210566499 U CN210566499 U CN 210566499U
- Authority
- CN
- China
- Prior art keywords
- end cover
- valve core
- hole
- sealing
- counter bore
- 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.)
- Withdrawn - After Issue
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 29
- 230000000087 stabilizing effect Effects 0.000 title abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229920001971 elastomer Polymers 0.000 claims abstract description 6
- 238000001746 injection moulding Methods 0.000 claims abstract description 6
- 238000005192 partition Methods 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 abstract description 3
- 230000001603 reducing effect Effects 0.000 description 6
- 238000013016 damping Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model discloses a fluid pressure stabilizing valve, including shell, case, elastomer, upper end cover, supporting seat and lower end cover. The water inlet chamber and the air chamber are separated into through the baffle to the shell inside, and the exhaust hole has been seted up on the wall upper portion of air chamber, and the supporting seat is established in the top of baffle, and the upper end cover is installed at the shell upper end. The through-hole has been seted up on the baffle, and in this through-hole was passed and the insert supporting seat to the one end of case, the elastomer nestification was on the case, and lower end cover fixed mounting has seted up the apopore under the shell under the tip, and the apopore has been seted up to the lower end cover, and the flow hole has been seted up to case inside. The upper end cover comprises an end cover body and a sealing element, an upper counter bore and a lower counter bore are respectively formed in the upper portion and the lower portion of the end cover body, a through hole is formed between the upper counter bore and the lower counter bore, the sealing element comprises an upper sealing portion and a lower sealing portion, the upper sealing portion and the lower sealing portion are respectively used for sealing the upper counter bore and the lower counter bore, and the upper sealing portion and the lower sealing portion are connected into a whole through secondary injection molding. The utility model can tightly connect the sealing element and the upper end cover, and can not be separated from the upper end cover due to the too fast speed of the fluid.
Description
Technical Field
The utility model relates to a pressure relief device technical field, in particular to fluid surge damping valve.
Background
In the conventional pressure reducing valve, in order to achieve a completely closed state, a gasket is placed on one side of the valve element of the upper end cover to achieve complete sealing, 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 element. Placing the shims 9 presents a potential risk: 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 can be separated from the upper end cover in a negative pressure state, so that the function failure of the pressure reducing valve is caused.
Disclosure of Invention
To the problem, an object of the utility model is to provide a fluid surge damping valve forms the sealing member through the secondary injecting glue, and the assembly is simple, and the structure is reliable.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
a fluid pressure stabilizing valve comprises a shell, a valve core, an elastic body, an upper end cover, a supporting seat and a lower end cover, wherein the inside of the shell is divided into a water inlet cavity and an air cavity through a partition plate, and 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 is propped against the supporting seat, and the upper end cover is provided with a water inlet hole communicated with the water inlet cavity. The center of the partition board 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 is abutted against the valve core, a water outlet hole is formed in the lower end cover, and a flow passing 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 element, wherein the upper portion and the lower portion of the center of the end cover body are respectively provided with an upper counter bore and a lower counter bore, a through hole is formed between the upper counter bore and the lower counter bore, the sealing element comprises an upper sealing portion and a lower sealing portion, the upper sealing portion and the lower sealing portion are respectively used for sealing the upper counter bore and the lower counter bore, and the upper sealing portion and the lower sealing portion are connected into a whole through secondary injection molding.
Furthermore, the through holes are provided with a plurality of through holes which are circumferentially arranged or arranged in a straight line or in a cross shape.
Furthermore, the side of upper end cover is provided with a plurality of pothook along circumference, the upper end of shell is provided with a plurality of confession along circumference the card hole of pothook looks joint.
Furthermore, the supporting seat comprises a supporting plate and an annular boss which are integrally formed, the annular boss is arranged below the supporting plate, a circle of annular step is 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 step 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 a valve core body and a valve core seat which are integrally formed, the valve core body is vertically arranged at the top of the central position of the valve core seat, the overflowing 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 which is used for being in sealing fit with the wall surface of the air cavity is installed in the first sealing ring groove.
Furthermore, 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.
Furthermore, the water inlet holes are provided with a plurality of water inlet holes, and the water inlet holes are respectively staggered with the positions of the overflowing holes.
Preferably, the elastic body is a spring or rubber.
Furthermore, the sealing element is made of TPR or TPE or silica gel.
The utility model discloses following beneficial effect has: the utility model provides a fluid surge damping valve adopts the sealing member to replace current gasket, because the valve body is small, adopts the utility model discloses the scheme avoids complicated screw locking, has saved the space, has reduced the assembly complexity, more is favorable to the product miniaturization, and the produced adhesive force of secondary injecting glue and the pulling force of middle cylinder for the structure is reliable.
Drawings
Fig. 1 is a schematic view of an internal structure of a pressure reducing valve in the related art.
Fig. 2 is an exploded view of the components of the fluid 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 the upper end cap at another angle.
Fig. 6 is a perspective view of the sealing member.
Fig. 7 is a diagram showing a pressure reduction process of the pressure maintaining valve, in which fig. 7 (a) is an initial state, fig. 7 (b) is a pressure reduction state, and fig. 7 (c) is a closed state.
Fig. 8 is a force diagram of the valve core.
Description of the main component symbols: 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 overflowing hole; 21. a valve core body; 22. a valve core seat; 220. a first seal ring groove; 3. an elastomer; 4. an upper end cover; 40. a water inlet hole; 400. a hook; 41. an end cap body; 411. an upper counter bore; 412. a lower counter bore; 413. a through hole; 42. a seal member; 421. an upper sealing part; 422. a lower seal portion; 423. connecting columns; 5. a supporting seat; 51. a support plate; 510. a spool bore; 52. an annular boss; 6. a lower end cover; 60. a water outlet hole; 7. an O-shaped sealing ring; 8. and a Y-shaped sealing ring.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 2-8, a fluid pressure maintaining valve comprises a shell 1, a valve core 2, an elastic body 3, an upper end cover 4, a supporting seat 5 and a lower end cover 6. The inside of the housing 1 is divided into a water inlet cavity 101 and an air cavity 102 by a partition plate 10, and an air outlet 103 is formed in the upper part of the wall surface of the air cavity 102. 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 a valve core body 21 and a valve core seat 22 which are integrally formed, the valve core body 21 is vertically arranged at the top of the central position of the valve core seat 22, an overflowing hole used for communicating the water inlet cavity 101 and the water outlet hole 60 is formed in the valve core 2, the overflowing 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 installed in the first sealing ring groove 220. The lower end cover 6 is fixedly installed at the lower end of the housing 1 and abuts against the valve core seat 22, and a water outlet hole 60 is formed in the lower end cover 6.
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 installed at the upper end of the housing 1 and abuts against the supporting plate 51, a plurality of water inlets 40 communicated with the water inlet cavity 101 are formed in the upper end cover 4, and the positions of the plurality of water inlets 40 are staggered with the positions of the overflowing holes 20 respectively. The center of the partition board 10 is provided with a through hole 100, one end of the valve core body 21 passes through the through hole 100 from bottom to top and is inserted into the support seat 5, the elastic body 3 is arranged in the air cavity 102 and is embedded on the valve core body 21, the elastic body 3 is in a compressed state, and the elastic body 3 is preferably spring or rubber. The side of upper end cover 4 is provided with a plurality of pothook 400 along circumference, and the upper end of shell 1 is provided with a plurality of card hole 106 that supplies pothook 400 looks joint along circumference, and upper end cover 4 passes through the cooperation of pothook 400 and card hole 106 to be fixed in the upper end of shell 1.
The upper end cover 4 comprises an end cover body 41 and sealing elements 42, an upper counter bore 411 and a lower counter bore 412 are respectively formed in the upper portion and the lower portion of the center of the end cover body 41, a plurality of through holes 413 used for secondary injection molding of the sealing elements are formed between the upper counter bore 411 and the lower counter bore 412, and the plurality of through holes 413 are circumferentially arranged or arranged in a straight line or in a cross shape. 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 connected into a whole through secondary injection molding, a plurality of connecting columns 423 are formed between the upper sealing portion 421 and the lower sealing portion 422 through secondary injection molding, and the through holes 413 are filled with the connecting columns 423. The sealing member 42 is made of TPR or TPE or silicone.
The utility model discloses a theory of operation does:
initial state: the fluid flows in from the inlet hole 40, flows into the bottom position of the valve core 2 through the overflowing hole 20 in the middle of the valve core 2, the fluid pressure has an upward acting force on the valve core 2, has a pre-pressure F on the elastic body 3 during installation, and is not enough to push the valve core 2 to move when the fluid pressure is less than F, and the valve core 2 is kept in an initial state.
And (3) a reduced-pressure state: when the fluid pressure increases until the pressure acting on the bottom end of the valve core 2 is greater than the pre-pressure F of the elastic body 3, the valve core 2 moves upwards under the action of the fluid pressure, so that the fluid pressure flowing through the flow hole 20 is reduced, the pressure reducing effect is achieved, and the air in the air cavity 102 is exhausted through the exhaust hole 103.
And (3) closing state: when a pipeline connected with the pressure stabilizing valve is blocked or closed, the valve core 2 moves upwards under the action of fluid pressure until being closed, and the pressure of the fluid outflow end is stabilized at a certain value P at the moment, so that the fluid pressure borne by a pipeline and a product is ensured to be within a safety range.
Adopt the utility model discloses the scheme avoids complicated screw locking, has saved the space, has reduced the assembly complexity, more is favorable to the product miniaturization, goes up sealing 421, lower sealing 422 because the mode of the secondary is moulded plastics, just has certain adhesive force with upper end cover 4 itself, and rethread spliced pole 423 carries out dual enhancement for the structure of whole sealing member is reliable, is difficult for droing.
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 detail 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 regulator valve, comprising: 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 supports 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 penetrates 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 supports the valve core, the lower end cover is provided with a water outlet hole, the inside of the valve core is provided with a overflowing hole for communicating the water inlet cavity and the, the upper counter bore and the lower counter bore are provided with through holes, the sealing element 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.
2. A fluid regulator valve according to claim 1, wherein: the through holes are circumferentially arranged or arranged in a straight line or in a cross shape.
3. A fluid regulator valve according to claim 1, wherein: the side of upper end cover is provided with a plurality of pothook along circumference, the upper end of shell is provided with a plurality of confession along circumference the card hole of pothook looks joint.
4. A fluid regulator valve according to claim 1, wherein: the supporting seat comprises a supporting plate and an annular boss which are integrally formed, the annular boss is arranged below the supporting plate, a circle of annular step is arranged on the upper portion of the water inlet cavity, the upper surface and the lower surface of the supporting plate are respectively abutted against the annular step 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.
5. A fluid regulator valve according to claim 1, wherein: the valve core comprises a valve core body and a valve core seat which are integrally formed, the valve core body is vertically arranged at the top of the central position of the valve core seat, the overflowing 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 which is used for being matched with the wall surface of the air cavity in a sealing mode is installed in the first sealing ring groove.
6. A fluid regulator valve according to claim 1, wherein: and 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 regulator valve according to claim 1, wherein: the water inlet holes are provided with a plurality of water inlet holes which are respectively staggered with the positions of the overflowing holes.
8. A fluid regulator valve according to any one of claims 1-7, wherein: the elastic body is a spring or rubber.
9. A fluid regulator valve according to any one of claims 1-7, wherein: the sealing element is made of TPR or TPE or silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921628313.6U CN210566499U (en) | 2019-09-27 | 2019-09-27 | Fluid pressure stabilizing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921628313.6U CN210566499U (en) | 2019-09-27 | 2019-09-27 | Fluid pressure stabilizing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210566499U true CN210566499U (en) | 2020-05-19 |
Family
ID=70630297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921628313.6U Withdrawn - After Issue CN210566499U (en) | 2019-09-27 | 2019-09-27 | Fluid pressure stabilizing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210566499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553069A (en) * | 2019-09-27 | 2019-12-10 | 谷力(厦门)科技有限公司 | Fluid pressure stabilizing valve |
-
2019
- 2019-09-27 CN CN201921628313.6U patent/CN210566499U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553069A (en) * | 2019-09-27 | 2019-12-10 | 谷力(厦门)科技有限公司 | Fluid pressure stabilizing valve |
| CN110553069B (en) * | 2019-09-27 | 2024-05-24 | 谷力(厦门)科技有限公司 | Fluid pressure stabilizing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200519 Effective date of abandoning: 20240524 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200519 Effective date of abandoning: 20240524 |