CN203926932U - A kind of safety check - Google Patents
A kind of safety check Download PDFInfo
- Publication number
- CN203926932U CN203926932U CN201320877129.1U CN201320877129U CN203926932U CN 203926932 U CN203926932 U CN 203926932U CN 201320877129 U CN201320877129 U CN 201320877129U CN 203926932 U CN203926932 U CN 203926932U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- valve body
- spool
- safety check
- medium inlet
- 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
Abstract
The utility model relates to a kind of safety check, comprise valve body, be arranged on the valve gap on described valve body, on described valve body, offer medium inlet and media outlet, place, described medium inlet is provided with and only allows the spool opened to described media outlet one side, on described valve body, be connected with the main shaft that can rotate, on described main shaft, be connected with rocking bar, described spool is connected on described rocking bar, described main shaft two ends pass described valve body, and in the one or both ends of described main shaft, are provided with the return unit for closing assisted described spool.The utility model applies external force by giving main shaft, makes spool when closing, and sealing effect is better, reduces careless omission phenomenon, has greatly improved the quality of safety check itself.
Description
Technical field
the utility model relates to valve, particularly relates to a kind of safety check.
Background technique
safety check claims again one-way valve or check valve, and its effect is to prevent that the medium in pipeline from flowing backwards, and spool is opened voluntarily or closes by media flow and strength, only allows medium to flow to a direction, to try to avert accidents.Conventionally, medium makes the spool of valve open under pressure, and from medium inlet effluent to media outlet, when medium inlet side pressure is during lower than medium inlet side, spool automatically by pathway closure, stops medium counter flow under the effect of pressure medium and gravity own.Just because of the independence of its switching, easily occur that spool occurs that when closing pass is dead or seals the phenomenon that causes not careless omission.
Summary of the invention
the purpose of this utility model is to provide a kind of safety check.
for achieving the above object, the technical solution adopted in the utility model is:
a kind of safety check, comprise valve body, be arranged on the valve gap on described valve body, on described valve body, offer medium inlet and media outlet, place, described medium inlet is provided with and only allows the spool opened to described media outlet one side, on described valve body, be connected with the main shaft that can rotate, on described main shaft, be connected with rocking bar, described spool is connected on described rocking bar, described main shaft two ends pass described valve body, and in the one or both ends of described main shaft, are provided with the return unit for closing assisted described spool.
preferably, described return unit is Returnning spring.
preferably, described return unit is hammer piece.
further preferably, described hammer piece is provided with two, and the hammer piece described in two is arranged on one end of described main shaft simultaneously or is separately positioned on the two ends of described main shaft.
preferably, the outer wrap of described spool has caulking gum.
further preferably, the position that is positioned at described medium inlet on described valve body is provided with step surface, when described spool is closed and described step surface fit.
further preferably, on described caulking gum, be provided with flange collar, when described spool is closed, described flange collar and described step surface fit.
because technique scheme is used, the utility model compared with prior art has following advantages:
the utility model applies external force by giving main shaft, makes spool when closing, and sealing effect is better, reduces careless omission phenomenon, has greatly improved the quality of safety check itself.
Accompanying drawing explanation
accompanying drawing 1 is cross-sectional schematic of the present utility model;
accompanying drawing 2 is embodiment one cross-sectional schematic;
accompanying drawing 3 is embodiment two schematic diagram one;
accompanying drawing 4 is embodiment two schematic diagram two.
wherein: 1, valve body; 10, medium inlet; 11, media outlet; 12, step surface; 2, valve gap; 3, spool; 4, main shaft; 5, caulking gum; 50, flange collar; 6, Returnning spring; 7, hammer piece; 8, rocking bar.
Embodiment
below in conjunction with drawings and Examples, the utility model is further described:
a kind of safety check as shown in Figure 1, comprise valve body 1, be arranged on the valve gap 2 on valve body 1, on valve body 1, offer medium inlet 10 and media outlet 11,10 places, medium inlet are provided with and only allow the spool 3 opened to media outlet 11 1 sides, on valve body 1, be connected with the main shaft 4 that can rotate, on main shaft 4, be connected with rocking bar 8, spool 3 is connected on rocking bar 8.In the present embodiment: main shaft 4 two ends pass valve body 1, and are provided with the return unit for closing assisted spool 3 in the one or both ends of main shaft 4.The position that is positioned at medium inlet 10 on valve body 1 is provided with step surface 12; In addition, the outer wrap of spool 3 has caulking gum 5, is provided with flange collar 50 on caulking gum 5, and when spool 3 is closed, flange collar 50 fits with step surface 12, is more conducive to sealing.
embodiment one:
as shown in Figure 2: in the present embodiment, return unit is Returnning spring 6, when medium passes through medium inlet 10, spool 3 is opened by hydraulic pressure, thus main shaft 4 rotation reverse reset springs 6; When medium stops flowing into, spool 3 pressurizeds disappear and close, the sealing intensity of raising spool 3 thereby Returnning spring 6 resets.
embodiment two:
in the present embodiment: return unit is hammer piece 7, and in the present embodiment, hammer piece 7 is provided with two, and two hammer pieces 7 can be separately positioned on the two ends of main shaft 4, as shown in Figure 3; Also can be arranged on one end of main shaft 4, as shown in Figure 4 simultaneously.Hammer piece 7 has increased an external force to main shaft 4 revolutions, contributes to equally to improve the intensity of sealing.
above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (7)
1. a safety check, comprise valve body (1), be arranged on the valve gap (2) on described valve body (1), on described valve body (1), offer medium inlet (10) and media outlet (11), described medium inlet (10) is located to be provided with and is only allowed the spool (3) opened to described media outlet (11) one sides, on described valve body (1), be connected with the main shaft (4) that can rotate, on described main shaft (4), be connected with rocking bar (8), described spool (3) is connected on described rocking bar (8), it is characterized in that: described main shaft (4) two ends pass described valve body (1), and in the one or both ends of described main shaft (4), be provided with the return unit for closing assisted described spool (3).
2. a kind of safety check according to claim 1, is characterized in that: described return unit is Returnning spring (6).
3. a kind of safety check according to claim 1, is characterized in that: described return unit is hammer piece (7).
4. a kind of safety check according to claim 3, is characterized in that: described hammer piece (7) is provided with two, and the hammer piece (7) described in two is arranged on one end of described main shaft (4) simultaneously or is separately positioned on the two ends of described main shaft (4).
5. a kind of safety check according to claim 1, is characterized in that: the outer wrap of described spool (3) has caulking gum (5).
6. a kind of safety check according to claim 5, is characterized in that: the position that is positioned at described medium inlet (10) on described valve body (1) is provided with step surface (12), when described spool (3) is closed and described step surface (12) fit.
7. a kind of safety check according to claim 6, is characterized in that: on described caulking gum (5), be provided with flange collar (50), when described spool (3) is closed, described flange collar (50) fits with described step surface (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320877129.1U CN203926932U (en) | 2013-12-30 | 2013-12-30 | A kind of safety check |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320877129.1U CN203926932U (en) | 2013-12-30 | 2013-12-30 | A kind of safety check |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926932U true CN203926932U (en) | 2014-11-05 |
Family
ID=51822743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320877129.1U Expired - Fee Related CN203926932U (en) | 2013-12-30 | 2013-12-30 | A kind of safety check |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926932U (en) |
-
2013
- 2013-12-30 CN CN201320877129.1U patent/CN203926932U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151113 Address after: Ping Wang Zhen Wujiang District of Suzhou City, Jiangsu province 215221 Zhonglu Industrial Zone No. 2 Fuping Road Patentee after: Suzhou gelangfu equipment manufacturing Limited by Share Ltd Address before: Wujiang City Pingwang town Suzhou city Jiangsu province 215225 Zhonglu Industrial Zone No. 2 Fuping Road Patentee before: Galumph (Suzhou) Group Co., Ltd. |
|
| 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: 20141105 Termination date: 20191230 |