CN210218702U - Silent check valve - Google Patents
Silent check valve Download PDFInfo
- Publication number
- CN210218702U CN210218702U CN201920418314.1U CN201920418314U CN210218702U CN 210218702 U CN210218702 U CN 210218702U CN 201920418314 U CN201920418314 U CN 201920418314U CN 210218702 U CN210218702 U CN 210218702U
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- Prior art keywords
- valve
- clack
- valve clack
- medium
- seat
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- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000010935 stainless steel Substances 0.000 claims abstract description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 9
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 8
- 239000010962 carbon steel Substances 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 5
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052804 chromium Inorganic materials 0.000 abstract description 5
- 239000011651 chromium Substances 0.000 abstract description 5
- 229910002804 graphite Inorganic materials 0.000 abstract description 5
- 239000010439 graphite Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 10
- 230000009471 action Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model belongs to the technical field of check valves, in particular to a silent check valve, which comprises a valve body, wherein a valve seat is arranged at the bottom end of the valve body, a valve clack is arranged on the upper side of the valve seat, sealing rings are arranged on the lower side of the valve clack and the upper side of the valve seat, a spring is arranged on the side surface of the valve clack, a valve rod is arranged on the upper side of the valve clack, and a flow guide body is arranged on the outer; through the sealing washer of installation, it is sealed effectual, and play syllable-dividing effect, valve body through setting up, the valve gap, the valve clack, the valve rod all casts with carbon steel, its sealed face is with the build-up welding carbide, the chromium stainless steel is used to the round pin axle, flexible graphite +304 is used to the gasket, be discoid through the valve clack that sets up, and when the medium flows according to the regulation direction around the pivot of disk seat passageway is rotary motion, the valve clack receives the effect of medium force, opened, when the medium is against the current, because of valve clack dead weight and the effect of medium reversal force, make the valve clack close with the sealed face driving fit of disk seat, reach the mesh.
Description
Technical Field
The utility model belongs to the technical field of the check valve, concretely relates to silence check valve.
Background
The check valve is a basic element of fluid control engineering and is widely applied, but the traditional check valve is a swing type, a lifting type, an inclined butterfly type check valve or a silent check valve, and the silent check valve belongs to an automatic valve, mainly has the functions of preventing medium backflow, preventing reverse rotation of a pump and a driving motor and discharging container medium, and is widely applied to the fluid control engineering. However, the conventional silent check valve has a common disadvantage in opening and closing, namely, in the opening or closing process, the valve flap is always in the acceleration process, so that the speed of the valve moving part before stopping is too high, which is a direct reason for water hammer of the check valve and impact of the valve flap. Therefore, the valve rod and the valve clack are quickly abraded, the valve rod is easy to break due to long-term vibration, and the service life of the mute check valve is shortened; meanwhile, most valve clacks of the mute check valves in the current market are all vulcanized with rubber, and a copper or stainless steel valve seat is embedded after a groove is processed in the valve body, so that rubber materials are wasted, processing procedures are increased, processing cost is improved, and the sealing effect is not good at times. How to improve the mechanical strength of valve clack and valve rod, improve the life of silence check valve, how to improve the sealed effect of silence check valve, reduce rubber materials consumption and processing cost is the problem that needs to solve.
The prior art has the following problems:
1. the existing fluid preferably contains solid particles and medium with higher viscosity when flowing;
2. the existing valve has poor sealing effect and cannot effectively prevent a medium from flowing backwards.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides a silence check valve has sealed, effectively prevents the medium countercurrent, should contain solid particle when preventing fluid flow characteristics.
In order to achieve the above object, the utility model provides a following technical scheme: the silence check valve comprises a valve body, a valve seat is installed at the bottom end of the valve body, a valve clack is arranged on the upper side of the valve seat, a sealing ring is arranged on the lower side of the valve clack and the upper side of the valve seat, a spring is arranged on the side face of the valve clack, a valve rod is installed on the upper side of the valve clack, a flow guide body is installed on the outer side of the valve rod, and a water inlet is formed in the middle side of.
Preferably, the shape of valve clack is discoid, and the valve clack setting is in the upside of disk seat, and the sealed face of valve body and valve clack all adopts the stainless steel build-up welding.
Preferably, the sealing ring is annular and is mounted on the upper side of the valve seat.
Preferably, a valve cover is installed on one side of the valve body, and the valve body, the valve cover, the valve clack and the valve rod are all cast by carbon steel.
Preferably, the spring is cylindrical, and a plurality of springs are arranged around the valve clack.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the silent check valve only allows the medium to flow in one direction and prevents the medium from flowing in the other direction, the valve flap is opened under the action of the fluid pressure flowing in one direction, and when the fluid flows in the opposite direction, the valve flap is combined by the fluid pressure and the self weight of the valve flap to act on the valve seat, so that the flow is cut off, and the silent check valve is not suitable for the medium containing solid particles and having higher viscosity.
2. Through the sealing washer of installation, it is sealed effectual, and play syllable-dividing effect, valve body through setting up, the valve gap, the valve clack, the valve rod all casts with carbon steel, its sealed face is with the build-up welding carbide, the chromium stainless steel is used to the round pin axle, flexible graphite +304 is used to the gasket, be discoid through the valve clack that sets up, and when the medium flows according to the regulation direction around the pivot of disk seat passageway is rotary motion, the valve clack receives the effect of medium force, opened, when the medium is against the current, because of valve clack dead weight and the effect of medium reversal force, make the valve clack close with the sealed face driving fit of disk seat, reach the mesh.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the spring of the present invention;
in the figure: 1. a valve body; 2. a valve seat; 3. a seal ring; 4. a valve flap; 5. a spring; 6. a water inlet; 7. a flow conductor; 8. a valve stem.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-2, the present invention provides the following technical solutions: silence check valve, including valve body 1, disk seat 2 has been installed to the bottom of valve body 1, and the upside of disk seat 2 is provided with valve clack 4, and the downside of valve clack 4 and the upside of disk seat 2 are provided with sealing washer 3, and the side of valve clack 4 is provided with spring 5, and valve rod 8 has been installed to the upside of valve clack 4, and baffle 7 is installed in the outside of valve rod 8, and the well side of valve clack 4 is opened and is equipped with water inlet 6.
In this embodiment: through the valve body 1, the valve gap, the valve clack 4, the valve rod 8 is all cast with carbon steel, its sealing surface is with build-up welding carbide, chromium stainless steel is used for the round pin axle, the gasket is with flexible graphite +304, valve body 1 and baffle 7 are as an organic whole.
Specifically, the valve clack is disc-shaped, the valve clack 4 is arranged on the upper side of the valve seat 2, and the sealing surfaces of the valve body 1 and the valve clack 4 are both formed by stainless steel surfacing; the valve clack 4 is disc-shaped, and rotates around the rotating shaft of the channel of the valve seat 2, when the medium flows according to the specified direction, the valve clack 4 is opened under the action of the medium force, and when the medium flows reversely, the valve clack 4 is closed by the sealing surface of the valve clack 4 and the valve seat 2 due to the self-weight of the valve clack 4 and the action of the medium reverse force, so that the aim of preventing the medium from flowing reversely is fulfilled.
Specifically, the sealing ring is annular and is arranged on the upper side of the valve seat 2; through the sealing washer 3 of installation, sealed effectual, and play syllable-dividing effect.
Specifically, a valve cover is arranged on one side of the valve body, and the valve body 1, the valve cover, the valve clack 4 and the valve rod 8 are all cast by carbon steel; the valve body 1, the valve cover, the valve clack 4 and the valve rod 8 are all cast by carbon steel, the sealing surface of the valve body is made of surfacing hard alloy, the pin shaft is made of chromium stainless steel, and the gasket is made of flexible graphite plus 304, so that the sealing performance is good.
Specifically, the springs 5 are cylindrical, and a plurality of the springs are arranged on the periphery of the valve clack 4; the valve body 1 and the flow guiding body 7 are integrated.
The utility model discloses a theory of operation and use flow: when in use, the valve body 1, the valve cover, the valve flap 4 and the valve rod 8 are cast by carbon steel, the sealing surface of the valve body is made of surfacing hard alloy, the pin shaft is made of chromium stainless steel, the gasket is made of flexible graphite +304, the sealing performance is good, the sealing effect is good and the sound insulation effect is achieved by the installed sealing ring 3, the valve flap 4 is in a disc shape and rotates around the rotating shaft of the channel of the valve seat 2, when a medium flows in a specified direction, the valve flap 4 is acted by the medium force to be opened, when the medium flows backwards, the valve flap 4 is tightly closed with the sealing surface of the valve seat 2 due to the self weight of the valve flap 4 and the action of the medium reverse force, so as to achieve the purpose of preventing the medium from flowing backwards, the valve body 1 and the flow guide body 7 are integrated, the springs 5 are all installed on the upper periphery of the valve flap 4, the springs pass through the water, the valve flap is opened under the action of fluid pressure flowing in one direction, and when the fluid flows in the opposite direction, the valve flap is combined by the fluid pressure and the self weight of the valve flap and acts on the valve seat so as to cut off the flow, so that the valve flap is not suitable for media containing solid particles and having high viscosity.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. Silence check valve, including valve body (1), disk seat (2), its characterized in that have been installed to the bottom of valve body (1): the upside of disk seat (2) is provided with valve clack (4), the downside of valve clack (4) and the upside of disk seat (2) are provided with sealing washer (3), the side of valve clack (4) is provided with spring (5), valve rod (8) have been installed to the upside of valve clack (4), baffle (7) are installed in the outside of valve rod (8), well side division of valve clack (4) is equipped with water inlet (6).
2. The silent check valve as claimed in claim 1, wherein: the shape of valve clack (4) is discoid, and valve clack (4) set up the upside at disk seat (2), and the sealed face of valve body (1) and valve clack (4) all adopts the stainless steel build-up welding.
3. The silent check valve as claimed in claim 1, wherein: the sealing ring (3) is annular and is arranged on the upper side of the valve seat (2).
4. The silent check valve as claimed in claim 1, wherein: the valve cover is installed to one side of valve body (1), and valve body (1), valve cover, valve clack (4), valve rod (8) all cast with carbon steel.
5. The silent check valve as claimed in claim 1, wherein: the springs (5) are cylindrical, the number of the springs is a plurality, and the springs are all arranged on the periphery of the valve clack (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920418314.1U CN210218702U (en) | 2019-03-29 | 2019-03-29 | Silent check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920418314.1U CN210218702U (en) | 2019-03-29 | 2019-03-29 | Silent check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210218702U true CN210218702U (en) | 2020-03-31 |
Family
ID=69922158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920418314.1U Active CN210218702U (en) | 2019-03-29 | 2019-03-29 | Silent check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210218702U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484020A (en) * | 2022-01-26 | 2022-05-13 | 宁波一机阀门制造有限公司 | Suspension type double-seat metal hard sealing check valve without shaft and sleeve |
| WO2024164557A1 (en) * | 2023-02-09 | 2024-08-15 | 苏州纽威阀门股份有限公司 | Breakaway coupling |
-
2019
- 2019-03-29 CN CN201920418314.1U patent/CN210218702U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484020A (en) * | 2022-01-26 | 2022-05-13 | 宁波一机阀门制造有限公司 | Suspension type double-seat metal hard sealing check valve without shaft and sleeve |
| WO2024164557A1 (en) * | 2023-02-09 | 2024-08-15 | 苏州纽威阀门股份有限公司 | Breakaway coupling |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |