CN203836296U - Air check valve - Google Patents
Air check valve Download PDFInfo
- Publication number
- CN203836296U CN203836296U CN201420163955.4U CN201420163955U CN203836296U CN 203836296 U CN203836296 U CN 203836296U CN 201420163955 U CN201420163955 U CN 201420163955U CN 203836296 U CN203836296 U CN 203836296U
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- China
- Prior art keywords
- valve body
- valve
- plate
- elastic connection
- inlet end
- 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 - Lifetime
Links
- 230000005484 gravity Effects 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model discloses an air check valve which comprises a valve body, a valve plate for closing or opening the air inlet end of the valve body and a bendable elastic connection plate. The valve plate is rotationally installed in the valve body through the elastic connection plate. The elastic connection plate comprises a fixing part and an installing part connected with the fixing part. The elastic connection plate is installed on the inner wall of the air inlet end of the valve body through the fixing part, and one end of the valve plate is installed on the installing part. The valve plate rotates in the state of bearing the air inlet pressure of the air inlet end of the valve body, the installation part is driven to bend relative to the fixing part, and the air inlet end of the valve body is opened. Under the pressure relieving of the air inlet end of the valve body and/or the reversed pressure action of the air outlet end of the valve body, the valve plate rotates under the elastic resetting and/or the gravity action of the installing part, and the air inlet end of the valve body is sealed. According to the air check valve, the elastic connection plate is used for installing the valve plate into the valve body, and therefore the valve plate can rotate.
Description
Technical field
The utility model relates to valve technology field, relates in particular to a kind of air check valve.
Background technique
Air check valve, for preventing gas backstreaming.In existing check valve, valve plate is to be arranged in valve body by hinge, realizes conducting or the disconnection of check valve by the rotation of valve plate.Yet existing hinging manner makes structure comparatively complicated, installs also loaded down with trivial details.
Model utility content
The technical problems to be solved in the utility model is, a kind of air check valve simple in structure is provided.
The utility model solves the technological scheme that its technical problem adopts: a kind of air check valve is provided, comprise valve body, the valve plate that the inlet end of described valve body is sealed or opened and bent elastic connection plate, described valve plate is installed in rotation in described valve body by described elastic connection plate;
Described elastic connection plate comprises fixing part and the assembly department being connected with described fixing part, and described elastic connection plate is arranged on described fixing part on the inwall of described valve body inlet end, and one end of described valve plate is arranged on described assembly department;
Described valve plate rotates under the inlet end suction pressure state of described valve body being subject to, and drives described assembly department to bend with respect to described fixing part, the inlet end of open described valve body; Under the releasing of inlet end pressure and/or outlet side backpressure effect of described valve body, described valve plate is subject to rotate under described assembly department elastic reset and/or Action of Gravity Field, seals the inlet end of described valve body.
Preferably, on the inwall of the inlet end of described valve body, be equipped with the boss extending to the outlet side direction of described valve body, described elastic connection plate is arranged on outside, described boss one end by described fixing part, and the rotatable folding of described valve plate is connected on the end face of described boss mutually.
Preferably, the end face of described boss is the inclined-plane of relatively described valve body inclined; The height of described boss increases progressively to the relative the other end gradually from the one end near described elastic connection plate.
Preferably, on the end face of described boss, be also provided with seal ring.
Preferably, at least one surface of described elastic connection plate is provided with impression, and described impression is between described fixing part and described assembly department.
Preferably, at least one surface of described elastic connection plate is provided with stiffening rib.
Preferably, described elastic connection plate is rubber plate.
Preferably, described valve body comprises the first valve body end, the second valve body end and is connected to the body between described the first valve body end and the second valve body end; Described the first valve body end forms the inlet end of described valve body, and described the second valve body end forms the outlet side of described valve body.
Preferably, described air check valve also comprises outside described body, is connected to the pull bar between described the first valve body end and described the second valve body end.
Preferably, described air check valve also comprises filter screen, and described filter screen is arranged on the inlet end end face of described valve body.
Air check valve of the present utility model, is arranged on valve plate in valve body by elastic connection plate, realizes the rotatable of valve plate.This elastic connection plate is in the hinge of existing check valve, simple in structure, simple installation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Cross-sectional view when Fig. 1 is the utility model one embodiment's air check valve conducting;
Fig. 2 is the cross-sectional view of the utility model one embodiment's air check valve while disconnecting;
Fig. 3 is the structural representation of the utility model one embodiment's air check valve Elastic connecting plate.
Embodiment
For technical characteristics of the present utility model, object and effect being had more clearly, understand, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As Figure 1-3, the utility model one embodiment's air check valve, comprises valve body 1, valve plate 2 and bent elastic connection plate 3, and valve plate 2 is installed in rotation in valve body 1 by elastic connection plate 3, by the inlet end sealing of valve body 1 or open, realize conducting or the disconnection of check valve.
Wherein, elastic connection plate 3 comprises fixing part 31 and the assembly department 32 being connected with fixing part 31, and elastic connection plate 3 is arranged on fixing part 31 on the inwall of valve body 1 inlet end, and one end of valve plate 2 is arranged on assembly department 32.Valve plate 2 rotates under the inlet end suction pressure state of valve body 1 being subject to, and drives assembly department 32 with respect to fixing part 31 bendings, the inlet end of open valve body 1; Under the inlet end pressure releasing of valve body 1 or the outlet side backpressure effect of valve body 1 or under the releasing of inlet end pressure and outlet side backpressure effect of valve body 1, valve plate 2 is subject to rotate under assembly department 32 elastic resets and/or Action of Gravity Field, the inlet end of closed valve 1.
The shape of elastic connection plate 3 can be but is not limited to rectangle, the polygonal such as trapezoidal or oval etc.The fixing fastener assembly that all can adopt between fixing and assembly department 32 and valve plate 2 between fixing part 31 and valve body 1 is realized, and as bolts and nuts etc., dismounting is easy.Elastic connection plate 3 can be rubber plate, has elasticity, and can elastic reset after bending.
Valve plate 2 is mainly that one end is arranged on the assembly department 32 of elastic connection plate 3, so valve plate 2 fixing part 31 relative to assembly department 32 is freely.With reference to figure 1, when the inlet end that has air-flow from valve body 1 passes through, air-flow forms suction pressure at inlet end and promotes valve plate 2, valve plate 2 rotates to the outlet side direction of valve body 1, drive the relative fixing part 31 of assembly department 32 to bend to outlet side direction, thereby the inlet end of open valve body 1, air-flow is by flowing out from outlet side.With reference to figure 2, when airless passes through, inlet end suction pressure is removed, the assembly department 32 of elastic connection plate 3 resets under elastic-restoring force, drive valve plate 2 to rotate to inlet end, valve plate 2 also rotates to inlet end under Action of Gravity Field simultaneously, thereby valve plate 2 is by the inlet end sealing of valve body 1.In addition, when the outlet side of valve body 1 has air-flow to come in to form backpressure, valve plate 2 is under backpressure, the assembly department 32 of elastic connection plate 3 resets under elastic-restoring force, drive valve plate 2 to rotate to inlet end, valve plate 2 also rotates to inlet end under Action of Gravity Field simultaneously, thereby valve plate 2 is by the inlet end sealing of valve body 1.
For elastic connection plate 3 is better bent, at least one surface of elastic connection plate 3, be provided with impression 30, impression 30 is between fixing part 31 and assembly department 32, and like this, assembly department 32 can be along relative fixing part 31 bendings of impression 30.Impression 30 can be arranged on elastic connection plate 3 on the surface of valve body 1 outlet side or dorsad on the surface of valve body 1 outlet side or on above-mentioned these two surfaces.In order to strengthen the intensity of elastic connection plate 3, at least one surface of elastic connection plate 3, can be provided with stiffening rib (not shown); Horizontal, longitudinal or crisscross setting that stiffening rib can be.
On the inwall of the inlet end of valve body 1, be equipped with the boss 10 extending to the outlet side direction of valve body 1, so boss 10 is annular; Elastic connection plate 3 is arranged on boss 10 outsides, one end by fixing part 31, and the rotatable folding of valve plate 2 is connected on the end face of boss 10 mutually.When valve plate 2 closures are connected on boss 10 end faces mutually, the sealing of the inlet end of valve body 1, is not communicated with outlet side, as shown in fig. 1; When valve plate 2 leaves on boss 10 end faces, the inlet end of valve body 1 is opened, and is communicated with, as shown in Figure 2 with outlet side.
For valve plate 2 is better connected on the end face of boss 10 mutually, the end face of boss 10 is the inclined-plane of relative valve body 1 inclined, and the height that is arranged so that boss 10 on inclined-plane increases progressively to the relative the other end gradually from the one end near elastic connection plate 3.The placement direction of air check valve shown in Fig. 1 of take is example, elastic connection plate 3 is positioned at boss 10 outsides, upper end, the height of boss 10 upper ends (parallel valve body 1 central shaft of this short transverse) is greater than the height of boss 10 lower ends, and the height of boss 10 Dao Qi lower ends, upper end is to increase progressively gradually.
End face that inclined-plane arranges is better fits with valve plate 2.Further, on the end face of boss 10, be also provided with seal ring 4.By seal ring 4, the gap between valve plate 2 and the end face of boss 10 is sealed.Seal ring 4 can directly be fixed on boss 10 end faces, also can be embedded on boss 10 end faces.
Further, air check valve also comprises filter screen 5, and filter screen 5 is arranged on the inlet end end face of valve body 1.By the setting of filter screen 5, the foreign material in can elimination air-flow, play a role in filtering.
Particularly, in the present embodiment, valve body 1 comprise the first valve body end 11, the second valve body end 12 and be connected to the first valve body end 11 and the second valve body end 12 between body 13; The first valve body end 11 forms the inlet end of valve body 1, and the second valve body end 12 forms the outlet side of valve body 1.Boss 10 be positioned at the first valve body end 11 on the inwall of the second valve body end 12; Filter screen 5 is arranged on the end face of the first valve body end 11 away from the second valve body end 12.
Split type valve body 1 makes the assembling of check valve more easy.During installation, first by elastic connection plate 3, valve plate 2 is arranged on to the first valve body end 11 inwalls, then assembles with body 13 and the second valve body end 12, assembling process is simple and efficient.
Further, air check valve also comprises outside body 13, is connected to the pull bar 6 between the first valve body end 11 and the second valve body end 12.Pull bar 6 more firmly couples together the first valve body end 11 and the second valve body end 12; Pull bar 6 opposite ends can be fixed on the outer wall of the first valve body end 11 and the second valve body end 12 by nut 61 respectively.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. an air check valve, it is characterized in that, comprise valve body (1), the valve plate (2) that the inlet end of described valve body (1) is sealed or opened and bent elastic connection plate (3), described valve plate (2) is installed in rotation in described valve body (1) by described elastic connection plate (3);
Described elastic connection plate (3) comprises fixing part (31) and the assembly department (32) being connected with described fixing part (31), described elastic connection plate (3) is arranged on described fixing part (31) on the inwall of described valve body (1) inlet end, and one end of described valve plate (2) is arranged on described assembly department (32);
Described valve plate (2) rotates under the inlet end suction pressure state of described valve body (1) being subject to, and drives described assembly department (32) with respect to described fixing part (31) bending, the inlet end of open described valve body (1); Under the releasing of inlet end pressure and/or outlet side backpressure effect of described valve body (1), described valve plate (2) is subject to rotate under described assembly department (32) elastic reset and/or Action of Gravity Field, seals the inlet end of described valve body (1).
2. air check valve according to claim 1, it is characterized in that, on the inwall of the inlet end of described valve body (1), be equipped with the boss (10) extending to the outlet side direction of described valve body (1), described elastic connection plate (3) is arranged on outside, described boss (10) one end by described fixing part (31), and the rotatable folding of described valve plate (2) is connected on the end face of described boss (10) mutually.
3. air check valve according to claim 2, is characterized in that, the end face of described boss (10) is the inclined-plane of relatively described valve body (1) inclined; The height of described boss (10) increases progressively to the relative the other end gradually from the one end near described elastic connection plate (3).
4. air check valve according to claim 2, is characterized in that, is also provided with seal ring (4) on the end face of described boss (10).
5. air check valve according to claim 1, is characterized in that, at least one surface of described elastic connection plate (3) is provided with impression (30), and described impression (30) is positioned between described fixing part (31) and described assembly department (32).
6. air check valve according to claim 1, is characterized in that, at least one surface of described elastic connection plate (3) is provided with stiffening rib.
7. air check valve according to claim 1, is characterized in that, described elastic connection plate (3) is rubber plate.
8. according to the air check valve described in claim 1-7 any one, it is characterized in that, described valve body (1) comprises the first valve body end (11), the second valve body end (12) and is connected to the body (13) between described the first valve body end (11) and the second valve body end (12); Described the first valve body end (11) forms the inlet end of described valve body (1), and described the second valve body end (12) forms the outlet side of described valve body (1).
9. air check valve according to claim 8, is characterized in that, described air check valve also comprise be positioned at described body (13) outer, be connected to the pull bar (6) between described the first valve body end (11) and described the second valve body end (12).
10. according to the air check valve described in claim 1-7 any one, it is characterized in that, described air check valve also comprises filter screen (5), and described filter screen (5) is arranged on the inlet end end face of described valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163955.4U CN203836296U (en) | 2014-04-04 | 2014-04-04 | Air check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163955.4U CN203836296U (en) | 2014-04-04 | 2014-04-04 | Air check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836296U true CN203836296U (en) | 2014-09-17 |
Family
ID=51514138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420163955.4U Expired - Lifetime CN203836296U (en) | 2014-04-04 | 2014-04-04 | Air check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836296U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780147A (en) * | 2016-08-29 | 2018-03-09 | 青岛海尔滚筒洗衣机有限公司 | Washing machine anti-spilling structure and roller washing machine |
| WO2019062636A1 (en) * | 2017-09-29 | 2019-04-04 | 杭州三花研究院有限公司 | Block and fluid control device |
-
2014
- 2014-04-04 CN CN201420163955.4U patent/CN203836296U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780147A (en) * | 2016-08-29 | 2018-03-09 | 青岛海尔滚筒洗衣机有限公司 | Washing machine anti-spilling structure and roller washing machine |
| WO2019062636A1 (en) * | 2017-09-29 | 2019-04-04 | 杭州三花研究院有限公司 | Block and fluid control device |
| US11339896B2 (en) | 2017-09-29 | 2022-05-24 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Block and fluid control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |
|
| CX01 | Expiry of patent term |