CN203718062U - Elastic check valve structure - Google Patents
Elastic check valve structure Download PDFInfo
- Publication number
- CN203718062U CN203718062U CN201320847849.3U CN201320847849U CN203718062U CN 203718062 U CN203718062 U CN 203718062U CN 201320847849 U CN201320847849 U CN 201320847849U CN 203718062 U CN203718062 U CN 203718062U
- Authority
- CN
- China
- Prior art keywords
- straight chamber
- check valve
- cavity
- programme
- diameter straight
- 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
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 235000019098 Sedum telephium Nutrition 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
The utility model discloses an elastic check valve structure which comprises a valve body, wherein an inner cavity of the valve body consists of a large-diameter straight cavity and a small-diameter straight cavity which are axially communicated; an annular step is formed around the communication part of the large-diameter straight cavity and the small-diameter straight cavity; a seal ring is arranged in the cavity opening of the small-diameter straight cavity; a rigid press table is arranged in the large-diameter straight cavity; a rubber seal ball is connected to one side, facing the cavity opening of the small-diameter straight cavity, of the press table; a spring is connected between the press table and the annular step. According to the elastic check valve structure, the non-return effect of a check valve is enhanced by whole elastic sealing, and the service life of the check valve is prolonged.
Description
Technical field
The utility model relates to field of check valves, is specially a kind of elastomeric check valve structure.
Background technique
Safety check is a kind of conventional valve class device, and its principle is to rely on the strength of media flow to realize keying, to prevent the refluence of medium, is mainly used on the pipeline of medium one-way flow.In prior art safety check, generally realize one-way sealing by the Sealing of rigidity, live forever service time in poorly sealed close problem.
Model utility content
The purpose of this utility model is to provide a kind of elastomeric check valve structure, has poorly sealed close problem to solve prior art safety check.
In order to achieve the above object, the technological scheme that the utility model adopts is:
A kind of elastomeric check valve structure, include valve body, it is characterized in that: described body cavity is made up of the straight chamber of the major diameter being axially communicated with and the straight chamber of minor diameter, the straight chamber of major diameter and the straight chamber of minor diameter connectivity part are shaped to ring-shaped step around, in the accent that one end, the straight chamber of described minor diameter is communicated with the straight chamber of major diameter, be provided with seal ring, described major diameter is provided with presenting a theatrical performance as the last item on a programme of rigidity in straight chamber, the described side of presenting a theatrical performance as the last item on a programme is towards minor diameter straight chamber accent and be connected with rubber seal ball, and present a theatrical performance as the last item on a programme and be connected with the spring being enclosed within outside rubber seal ball between a side of the straight chamber of minor diameter accent and described ring-shaped step.
Described a kind of elastomeric check valve structure, is characterized in that: described in the opposite side of presenting a theatrical performance as the last item on a programme be coated with corrosion-resistant finishes.
The utility model utilizes in rubber seal ball indentation sealing circle and realizes elastic packing, utilizes spring force to reset when reset, and integral, flexible sealing can strengthen the non-return effect of safety check, has extended the working life of safety check.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1.A kind of elastomeric check valve structure, include valve body 1, valve body 1 inner chamber is made up of the straight chamber 2 of the major diameter being axially communicated with and the straight chamber 3 of minor diameter, the straight chamber 2 of major diameter is shaped to ring-shaped step 4 around with the straight chamber of minor diameter 3 connectivity parts, in the accent that 3 one end, the straight chamber of minor diameter are communicated with the straight chamber 2 of major diameter, be provided with seal ring 5, what in the straight chamber 2 of major diameter, be provided with rigidity presents a theatrical performance as the last item on a programme 6, 6 one sides of presenting a theatrical performance as the last item on a programme are towards minor diameter straight chamber 3 accents and be connected with rubber seal ball 7, and present a theatrical performance as the last item on a programme and be connected with the spring 8 being enclosed within outside rubber seal ball 7 between 6 sides towards the straight chamber of minor diameter 3 accents and ring-shaped step 4.6 opposite sides of presenting a theatrical performance as the last item on a programme are coated with corrosion-resistant finishes 9.
Claims (2)
1. an elastomeric check valve structure, include valve body, it is characterized in that: described body cavity is made up of the straight chamber of the major diameter being axially communicated with and the straight chamber of minor diameter, the straight chamber of major diameter and the straight chamber of minor diameter connectivity part are shaped to ring-shaped step around, in the accent that one end, the straight chamber of described minor diameter is communicated with the straight chamber of major diameter, be provided with seal ring, described major diameter is provided with presenting a theatrical performance as the last item on a programme of rigidity in straight chamber, the described side of presenting a theatrical performance as the last item on a programme is towards minor diameter straight chamber accent and be connected with rubber seal ball, and present a theatrical performance as the last item on a programme and be connected with the spring being enclosed within outside rubber seal ball between a side of the straight chamber of minor diameter accent and described ring-shaped step.
2. a kind of elastomeric check valve structure according to claim 1, is characterized in that: described in the opposite side of presenting a theatrical performance as the last item on a programme be coated with corrosion-resistant finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320847849.3U CN203718062U (en) | 2013-12-17 | 2013-12-17 | Elastic check valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320847849.3U CN203718062U (en) | 2013-12-17 | 2013-12-17 | Elastic check valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718062U true CN203718062U (en) | 2014-07-16 |
Family
ID=51157213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320847849.3U Expired - Fee Related CN203718062U (en) | 2013-12-17 | 2013-12-17 | Elastic check valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106888850A (en) * | 2017-03-05 | 2017-06-27 | 张红卫 | A kind of forestry arboriculture device |
-
2013
- 2013-12-17 CN CN201320847849.3U patent/CN203718062U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106888850A (en) * | 2017-03-05 | 2017-06-27 | 张红卫 | A kind of forestry arboriculture device |
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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 |
Granted publication date: 20140716 Termination date: 20141217 |
|
| EXPY | Termination of patent right or utility model |