CN205446752U - Valve clack of check valve and this check valve adoption - Google Patents
Valve clack of check valve and this check valve adoption Download PDFInfo
- Publication number
- CN205446752U CN205446752U CN201620227615.2U CN201620227615U CN205446752U CN 205446752 U CN205446752 U CN 205446752U CN 201620227615 U CN201620227615 U CN 201620227615U CN 205446752 U CN205446752 U CN 205446752U
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- flap
- annular groove
- sealing gasket
- check
- valve
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Abstract
The utility model relates to a valve clack of check valve and this check valve adoption. This check valve includes the valve body, the axis is followed the valve clack of upper and lower direction extension and is used for realizing that the sealed complex of valve body and valve clack seals the pad, the circumference of the lower extreme of valve clack is equipped with the annular groove, sealed pad is located in the annular groove, in the block portion of lower lateral wall for being used for the sealed pad of restriction to come off downwards of annular groove on the valve clack, the lateral wall was in order to coordinate with sealing matching portion is sealed under the radial salient annular groove of valve clack was followed to sealed outer end of filling up, on the valve clack in the downside of annular groove be equipped with the external diameter under by supreme grow gradually be used for sealed when filling up by supreme installation down sealed pad of guide expand the deformation gradually and pack into guide face in the annular groove, thus the sealed from the bottom up that fills up under the guiding function of guide face expands gradually and warp the annular groove of packing into, and because block portion is to the sealed restriction section who fills up, sealed pad is difficult to drop.
Description
Technical field
This utility model belongs to valve field, is specifically related to a kind of check-valves and the flap of this check-valves employing.
Background technology
Check-valves is dependent on medium itself and flows and automatic open and close flap, and the effect of check-valves is to prevent medium from flowing backwards, also known as non-return valve, check valve, reflux valve or check valve.The flap of check-valves is opened under fluid pressure effect, and fluid flows to outlet side from inlet side, and when inlet side pressure is less than outlet side, flap is automatically switched off to prevent reverse flow of fluids under fluid pressure or self gravitation effect.Check-valves is automatic valve, is mainly used on the pipeline of medium one-way flow, only allows medium one-way flow, to try to avert accidents.When check-valves is closed, flap is needed to coordinate with valve seal, to prevent fluid leakage.
Such as, Authorization Notice No. is CN204387405U, the open a kind of check-valves of the Chinese patent of entitled quiet ammonia check-valves.Described check-valves includes flap and valve body, and the lower surface of flap is provided with groove, is provided with sealing ring (being equivalent to sealing gasket) in groove, and valve body is provided with and seals, with sealing ring, the boss coordinated.But, sealing ring is located in groove, and the bottom of sealing ring does not has Stop structure, when, after the sealing ring matching loose with groove, sealing ring is easy to come off.
Utility model content
The purpose of this utility model is to provide a kind of check-valves to hold caducous technical problem with the sealing gasket solving to be located on flap.The purpose of this utility model also resides in a kind of flap of offer.
The technical scheme of check-valves in this utility model: a kind of check-valves, including valve body, flap that axis is vertically extending and for realizing the sealing gasket that valve body coordinates with flap sealing, valve body is provided with sealing fit portion, it is characterized in that: the annular groove being circumferentially with for installing sealing gasket of the lower end of flap, the lower wall of annular groove is for limiting the stop section that sealing gasket comes off downwards, the outer end of sealing gasket coordinates along the radially protruding annular groove lower wall of flap to seal with sealing fit portion, on flap downside in annular groove be provided with that external diameter becomes larger from the bottom to top for guiding sealing gasket gradually dilatating and deformable to load the guide surface in described annular groove when sealing gasket is installed from the bottom to top.
Described guide surface is the conical surface.
Described sealing gasket is rubber blanket.
The top of valve body is provided with valve gap, valve gap is provided with the vertically extending pilot hole that Open Side Down of axis, flap is located in pilot hole, valve gap coordinates with flap guiding movement along the vertical direction, flap is provided with the installing hole of the vertically extending opening upwards of axis, check-valves also includes the spring that length is vertically extending, and the upper end of spring peaks at the top of pilot hole, and lower end peaks at the bottom of installing hole.
The arranged on left and right sides of valve body is respectively equipped with extending the most in left-right direction and coinciding of fluid inlet and fluid issuing, fluid inlet and fluid issuing.
The technical scheme of flap in this utility model: a kind of flap, the axis of flap is vertically extending, it is characterized in that: the annular groove being circumferentially with for installing sealing gasket of the lower end of flap, the lower wall of annular groove is for limiting the stop section that sealing gasket comes off downwards,, on flap downside in annular groove be provided with that external diameter becomes larger from the bottom to top for guiding sealing gasket gradually dilatating and deformable to load the guide surface in described annular groove when sealing gasket is installed from the bottom to top.
Described guide surface is the conical surface that external diameter tapers into from top to bottom.
Usefulness of the present utility model: the lower end of flap be circumferentially with annular groove, sealing gasket is located in annular groove, on flap, the lower wall in annular groove is for limiting the stop section that sealing gasket comes off downwards, sealing gasket under the guiding function of guide surface the most gradually dilatating and deformable thus load in annular groove, due to the stop section restriction effect to sealing gasket, sealing gasket is not easy to come off.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of check-valves in this utility model；
Fig. 2 is the partial enlarged drawing in Fig. 1 at A.
In figure: 1, valve body；2, valve gap；3, flap；4, fluid inlet；5, fluid issuing；6, sealing gasket；7, spring；8, sealing fit portion；9, pilot hole；10, installing hole；11, stop section；12, guide surface.
Detailed description of the invention
In this utility model, the embodiment of check-valves is as illustrated in fig. 1 and 2: check-valves includes the vertically extending flap 3 of valve body 1, valve gap 2, axis and seals, with flap 3, the sealing gasket 6 coordinated for realizing valve body 1.Valve body 1 is provided with for the valve body connecting end surface with valve gap 2 Flange joint, and valve gap 2 is provided with and the valve gap connecting end surface of valve body 1 Flange joint.Valve gap 2 is provided with the vertically extending pilot hole that Open Side Down 9 of axis, in flap 3 is located at pilot hole 9 and coordinate with valve gap 2 guiding movement along the vertical direction, the vertically extending spring of length 7 it is top-loaded with between flap 3 and valve gap 2, the top of flap 3 is provided with the installing hole 10 of the vertically extending opening upwards of axis, the upper end of spring 7 peaks at the top of pilot hole 9, and lower end peaks at the bottom of installing hole 10.The lower end of flap 3 be circumferentially with annular groove, sealing gasket 6 is located in annular groove, sealing gasket 6 is rubber blanket, sealing gasket 6 has good flexibility, the lower wall of annular groove is for limiting the stop section 11 that sealing gasket 6 comes off downwards, valve body 3 is provided with sealing fit portion 8, sealing gasket 6 coordinates along the radially protruding annular groove lower wall of flap 3 to be formed to seal with sealing fit portion 8, on flap, the downside in annular groove is provided with the guide surface 12 loading in annular groove for the guiding sealing gasket 6 gradually dilatating and deformable when sealing gasket 6 is installed from the bottom to top that external diameter becomes larger from the bottom to top.The conical surface that guide surface 12 tapers into from top to bottom for external diameter.Valve body 1 includes being located at fluid inlet 4 that the axis on the left of valve body 1 extends in left-right direction and is located at the fluid issuing 5 that the axis on the right side of valve body 1 extends in left-right direction, the dead in line of the axis of fluid inlet 4 and fluid issuing 5.
In this utility model in other embodiments of check-valves, sealing gasket 6 is aramid fiber sealing gasket.
In this utility model in other embodiments of check-valves, guide surface 12 is sphere.
In this utility model, the embodiment of flap is identical with the structure of flap in the embodiment of check-valves, no longer repeats at this.
Claims (7)
1. a check-valves, including valve body, flap that axis is vertically extending and for realizing the sealing gasket that valve body coordinates with flap sealing, valve body is provided with sealing fit portion, it is characterized in that: the annular groove being circumferentially with for installing sealing gasket of the lower end of flap, the lower wall of annular groove is for limiting the stop section that sealing gasket comes off downwards, the outer end of sealing gasket coordinates along the radially protruding annular groove lower wall of flap to seal with sealing fit portion, on flap downside in annular groove be provided with that external diameter becomes larger from the bottom to top for guiding sealing gasket gradually dilatating and deformable to load the guide surface in described annular groove when sealing gasket is installed from the bottom to top.
Check-valves the most according to claim 1, it is characterised in that: described guide surface is the conical surface.
Check-valves the most according to claim 1, it is characterised in that: described sealing gasket is rubber blanket.
Check-valves the most according to claim 1, it is characterized in that: the top of valve body is provided with valve gap, valve gap is provided with the vertically extending pilot hole that Open Side Down of axis, flap is located in pilot hole, valve gap coordinates with flap guiding movement along the vertical direction, and flap is provided with the installing hole of the vertically extending opening upwards of axis, and check-valves also includes the spring that length is vertically extending, the upper end of spring peaks at the top of pilot hole, and lower end peaks at the bottom of installing hole.
Check-valves the most according to claim 1, it is characterised in that: the arranged on left and right sides of valve body is respectively equipped with extending the most in left-right direction and coinciding of fluid inlet and fluid issuing, fluid inlet and fluid issuing.
6. a flap, the axis of flap is vertically extending, it is characterized in that: the annular groove being circumferentially with for installing sealing gasket of the lower end of flap, the lower wall of annular groove is for limiting the stop section that sealing gasket comes off downwards, on flap downside in annular groove be provided with that external diameter becomes larger from the bottom to top for guiding sealing gasket gradually dilatating and deformable to load the guide surface in described annular groove when sealing gasket is installed from the bottom to top.
Flap the most according to claim 6, it is characterised in that: described guide surface is the conical surface that external diameter tapers into from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620227615.2U CN205446752U (en) | 2016-03-23 | 2016-03-23 | Valve clack of check valve and this check valve adoption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620227615.2U CN205446752U (en) | 2016-03-23 | 2016-03-23 | Valve clack of check valve and this check valve adoption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446752U true CN205446752U (en) | 2016-08-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620227615.2U Active CN205446752U (en) | 2016-03-23 | 2016-03-23 | Valve clack of check valve and this check valve adoption |
Country Status (1)
| Country | Link |
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| CN (1) | CN205446752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246961A (en) * | 2016-10-10 | 2016-12-21 | 苏州工业园区咖乐美电器有限公司 | A kind of unidirectional accumulator valve |
-
2016
- 2016-03-23 CN CN201620227615.2U patent/CN205446752U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246961A (en) * | 2016-10-10 | 2016-12-21 | 苏州工业园区咖乐美电器有限公司 | A kind of unidirectional accumulator valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |