CN204756035U - A check valve - Google Patents
A check valve Download PDFInfo
- Publication number
- CN204756035U CN204756035U CN201520330454.5U CN201520330454U CN204756035U CN 204756035 U CN204756035 U CN 204756035U CN 201520330454 U CN201520330454 U CN 201520330454U CN 204756035 U CN204756035 U CN 204756035U
- Authority
- CN
- China
- Prior art keywords
- flap
- valve
- piston
- valve body
- valve gap
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 241001661355 Synapsis Species 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 9
- 230000008092 positive effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
- Safety Valves (AREA)
Abstract
The utility model provides a check valve, including valve body and valve clack, valve body one end is the water inlet, and the other end is the delivery port, the water inlet with the intercommunication department of delivery port is the inclined plane, install the valve gap on the valve body, be equipped with a round pin axle on the valve gap, valve clack one end links to each other with the valve gap through the round pin axle, the valve clack is located on the inclined plane, the valve clack can wind the round pin axle rotates, a fixedly connected with piston on the valve clack, the piston includes cylinder and cap, be equipped with reset spring on the cylinder, the lower extreme of valve gap be provided with with piston matched with guide cylinder. The utility model has the advantages of with positive effect be: when liquid flowed into from the water inlet, the valve clack received that pressure is automatic to be opened, piston and guide cylinder looks butt, when liquid stopped to supply to press, the liquid refluence produced opposite pressure, the while under the assisting of reset spring, the valve clack quick closedown.
Description
Technical field
The utility model relates to pipeline fluid current velocity controller field, especially a kind of safety check.
Background technique
Safety check refers to and relies on medium flowing itself and automatic open and close flap, is used for the valve preventing medium from flowing backwards, also known as check valve, one-way valve, reflux valve and back pressure valve.Safety check belongs to a kind of automatic valve, and its Main Function prevents medium from flowing backwards, prevents pump and drive motor reversion, and the releasing of vessel media.The auxiliary system that safety check also can be used for may being raised above system pressure to pressure wherein provides on the pipeline of supply.
Existing safety check is divided into rotary-open type, rise-fall type, vertical lift check valve etc., but most complex structure, and processed complex, when valve closing, when flap clashes into valve body, impact force is comparatively large, can not close in time when not having discharge pressure.
Model utility content
Problem to be solved in the utility model is to provide a kind of safety check, good sealing effect, can automatically close in time when not having discharge pressure.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of safety check, comprise valve body and flap, described valve body one end is water intake, and the other end is water outlet, the connectivity part of described water intake and described water outlet is inclined-plane, described valve body is provided with valve gap, and described valve gap is provided with a bearing pin, and described flap one end is connected with valve gap by bearing pin, described flap is positioned on described inclined-plane, and described flap can rotate around described bearing pin; Described flap is fixedly connected with a piston, described piston comprises cylinder and cap, and described cylinder is provided with Returnning spring; The lower end of described valve gap is provided with the guide cylinder matched with described piston.
Further, the upper surface of described cap is circular arc, and described guide cylinder is provided with cushion pad away from one end of described valve gap, and described cushion pad is the circular shape of indent.
Further, described flap is the circular shape of indent away from one end of described bearing pin, and described flap is connected with described inclined-plane and touches.
Further, the upper end of described valve body and described valve gap joint are provided with the first seal ring.
Further, the lower end of the described valve body synapsis that is connected with described flap is circular shape, and it is provided with the second seal ring.
Further, described flap is rubber flap.
Further, the angle on described inclined-plane is 45 degree.
The advantage that the utility model has and good effect are:
1. flap of the present utility model is fixedly connected with a piston, the cylinder of piston is provided with Returnning spring; The lower end of valve gap is provided with the guide cylinder matched with piston.When liquid flows into from water intake, flap is under pressure and automatically opens, and piston and guide cylinder abut against, and when liquid stops voltage supply, liquid flows backwards, and produces backpressure, simultaneously Returnning spring auxiliary under, flap quick closedown.
2. the lower end of the valve body synapsis that is connected with described flap is circular shape, and it is provided with the second seal ring, increases sealing effect when flap is closed further.
3. the angle on inclined-plane is 45 degree, makes the shut-in time needed for flap short, reduces fluid pressure, improves flap working life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure:
1, valve gap; 2, valve body; 3, bolt; 4, the first seal ring; 5, guide cylinder; 6, cushion pad; 7, flap; 8, the second seal ring; 9, cylinder; 10, Returnning spring; 11, cap; 12, bearing pin; 13, water intake; 14, water outlet
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
As shown in Figure 1, a kind of safety check, comprise valve body 2 and flap 7, described valve body 2 one end is water intake 13, the other end is water outlet 14, the connectivity part of described water intake 13 and described water outlet 14 is inclined-plane, and described valve body 2 is provided with valve gap 1, and described valve gap 1 and described valve body 2 are fixed by bolt 3.Upper end and described valve gap 1 joint of described valve body 2 are provided with the first seal ring 4, play seal action.
Described valve gap 1 is provided with a bearing pin 12, and described flap 7 one end is connected with valve gap 1 by bearing pin 12, and described flap 7 is positioned on described inclined-plane, makes the shut-in time needed for flap short, reduces fluid pressure, raising flap 7 working life.Described flap 7 can rotate around described bearing pin 12, and described flap 7 is fixedly connected with a piston, and described piston comprises cylinder 9 and cap 11, and described cylinder 9 is provided with Returnning spring 10; The lower end of described valve gap 1 is provided with the guide cylinder 5 matched with described piston.The upper surface of described cap 11 is circular arc, and described guide cylinder 5 is provided with cushion pad 6 away from one end of described valve gap 1, and described cushion pad 6 is the circular shape of indent.Impact force when piston contacts with guide cylinder 5 can be reduced by cushion pad 6, extend the working life of each parts.
When liquid flows into from water intake 14, flap 7 is under pressure and automatically opens, and piston and guide cylinder 5 abut against, and when liquid stops voltage supply, liquid flows backwards, and produces backpressure, simultaneously Returnning spring 10 auxiliary under, flap 7 can be closed automatically rapidly.
The lower end of valve body 2 synapsis that is connected with described flap 7 is circular shape, it is provided with the second seal ring 8, described flap 7 is the circular shape of indent away from one end of described bearing pin 12, and described flap 7 is connected with described inclined-plane and touches, and increases sealing effect when flap 7 is closed further.
Further, in an embodiment of the present utility model, described flap 7 is rubber flap.In another embodiment of the present utility model, the angle on described inclined-plane is 45 degree.
Above embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present invention.All equalizations done according to the utility model scope change and improve, and all should still belong within this patent covering scope.
Claims (7)
1. a safety check, comprise valve body (2) and flap (7), described valve body (2) one end is water intake (13), the other end is water outlet (14), it is characterized in that: the connectivity part of described water intake (13) and described water outlet (14) is inclined-plane, described valve body (2) is provided with valve gap (1), described valve gap (1) is provided with a bearing pin (12), described flap (7) one end is connected with valve gap (1) by bearing pin (12), described flap (7) is positioned on described inclined-plane, described flap (7) can rotate around described bearing pin (12), (7) are fixedly connected with a piston to described flap, and described piston comprises cylinder (9) and cap (11), and described cylinder (9) is provided with Returnning spring (10), the lower end of described valve gap (1) is provided with the guide cylinder (5) matched with described piston.
2. a kind of safety check according to claim 1, it is characterized in that: the upper surface of described cap (11) is circular arc, described guide cylinder (5) is provided with cushion pad (6) away from one end of described valve gap (1), the circular shape that described cushion pad (6) is indent.
3. a kind of safety check according to claim 1, is characterized in that: described flap (7) is the circular shape of indent away from one end of described bearing pin (12), and described flap (7) is connected with described inclined-plane and touches.
4. a kind of safety check according to claim 1, is characterized in that: upper end and described valve gap (1) joint of described valve body (2) are provided with the first seal ring (4).
5. a kind of safety check according to claim 3, is characterized in that: the lower end of described valve body (2) synapsis that is connected with described flap (7) is circular shape, and it is provided with the second seal ring (8).
6. a kind of safety check according to claim 1, is characterized in that: described flap (7) is rubber flap.
7. a kind of safety check according to claim 1, is characterized in that: the angle on described inclined-plane is 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520330454.5U CN204756035U (en) | 2015-05-21 | 2015-05-21 | A check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520330454.5U CN204756035U (en) | 2015-05-21 | 2015-05-21 | A check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204756035U true CN204756035U (en) | 2015-11-11 |
Family
ID=54470742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520330454.5U Expired - Fee Related CN204756035U (en) | 2015-05-21 | 2015-05-21 | A check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204756035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748680A (en) * | 2019-11-26 | 2020-02-04 | 天纳克（苏州）排放系统有限公司 | Air exhaust valve |
-
2015
- 2015-05-21 CN CN201520330454.5U patent/CN204756035U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748680A (en) * | 2019-11-26 | 2020-02-04 | 天纳克（苏州）排放系统有限公司 | Air exhaust valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20160521 |