CN201680012U - Bidirectional check valve - Google Patents
Bidirectional check valve Download PDFInfo
- Publication number
- CN201680012U CN201680012U CN2010202060288U CN201020206028U CN201680012U CN 201680012 U CN201680012 U CN 201680012U CN 2010202060288 U CN2010202060288 U CN 2010202060288U CN 201020206028 U CN201020206028 U CN 201020206028U CN 201680012 U CN201680012 U CN 201680012U
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- CN
- China
- Prior art keywords
- valve
- sealing gasket
- valve body
- opening
- rod
- 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
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Abstract
The utility model relates to a bidirectional check valve, which comprises a bonnet, a valve body, a hand wheel, a valve stem, a floating rod and a sealing gasket. The bidirectional check valve is characterized in that the bonnet is connected with the valve body in a sealing manner, the valve stem is inserted into the bonnet, the end, extending into the bonnet, of the valve stem is hollow while the other end is connected with the hand wheel, the floating valve is a T-shaped rod part, one end of the floating rod is inserted into a hollow portion of the valve stem while the other end is connected with the sealing gasket, the valve body is provided with a fluid inlet and a fluid outlet, a spool with an opening is arranged at the central position inside the valve body, and the sealing gasket corresponds to the opening of the spool. The bidirectional check valve with fine sealing effect can simultaneously achieve the purposes of cut-off and checking, and not only saves cost, but also improves efficiency.
Description
Technical field
The utility model relates to a kind of stop valve, relates in particular to a kind of two-way shut-off valve.
Background technique
At present, playing in the valve of effect, when handwheel was rotated up, handwheel drove flap by valve rod and moves up, and flap separates with valve body, and liquid is passed through from valve body, realizes the function of opening.When handwheel was rotated down, handle drove flap by valve rod and moves down, and flap contacts and seals with valve body, realizes the function of closing.Though make flap with stainless steel material, serviceability temperature has improved, and the processing technology complexity is difficult for processing, and efficient is low especially, and behind the sealing surface wear, maintenance difficult is sealed into hard sealing, leaks easily, and can only play purpose by liquid.
The model utility content
The purpose of this utility model is to propose a kind of two-way shut-off valve, not only can end flow of fluid, can also play the function of non-return, improves sealing effect simultaneously.
The utility model is by the following technical solutions: a kind of two-way shut-off valve, by valve gap, valve body, handwheel, valve rod, buoyant beam and sealing gasket are formed, it is characterized in that: described valve gap is connected with described valve seal, described valve rod inserts described valve gap, the end that described valve rod stretches into described valve gap is a hollow, the other end is connected with described handwheel, described buoyant beam is a T font rod member, buoyant beam one end stretches into the hollow space of described valve rod, the other end connects described sealing gasket, and described valve body has liquid entering hole and liquid outlet, and the neutral position is provided with the spool that has opening in the valve body, the opening of the corresponding described spool of described sealing gasket
The diameter of described buoyant beam and described sealing gasket connecting end is greater than sealing gasket.
Adopted the technical solution of the utility model, valve body is nonmetal the contact with sealing gasket, and surface friction drag is little, good sealing effect; After wearing and tearing, rubber gasket is changed convenient; Adopt valve rod and buoyant beam form, can reach the purposes of stop valve and two kinds of valves of safety check simultaneously, both saved cost, increased efficient again.
Description of drawings
Fig. 1 is the structural representation of the utility model two-way shut-off valve.
Embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.
As shown in Figure 1, a kind of two-way shut-off valve, form by valve gap 1, valve body 2, handwheel 3, valve rod 4, buoyant beam 5 and sealing gasket 6, valve gap 1 is tightly connected with valve body 2, valve rod 4 inserts valve gap 1, the end that valve rod stretches into valve gap 1 is a hollow, the other end is connected with handwheel 3, buoyant beam is a T font rod member, and buoyant beam one end stretches into the hollow space of valve rod 4, and the other end connects sealing gasket 6, valve body has liquid entering hole and liquid outlet, the neutral position is provided with the spool that has opening, the opening of sealing gasket 6 corresponding spools in the valve body
When rotation hand wheel drive valve rod moves up, the valve rod hollow space will provide upper space to buoyant beam, the pressure that produces of the liquid that flows into from the valve body entrance point is smoothed out with the fingers the action of gravity that overcomes buoyant beam, seal ring and nut etc. like this, promoting buoyant beam and seal ring moves upward, produce distance between the opening that seal ring and valve body middle part cut off, liquid is flowed out to the valve outlet end, reach out the purpose of valve.
At this moment, if liquid refluxes, there is not liquid to flow to from the valve body entrance point, buoyant beam and seal ring do not have acquisition pressure from bottom to top, and smooth out with the fingers to buoyant beam and seal ring from the liquid that the valve outlet end refluxes and to produce downward pressure, realize sealing between the opening that seal ring and valve body middle part cut off, reach the purpose that stops liquid return.
When rotation hand wheel drives valve rod and moves down, valve rod will push buoyant beam, overcome the pressure that the liquid that flows into from the valve body entrance point produces, and realize sealing between the opening that makes seal ring and valve body middle part cut off, and reach the purpose of throttle down.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with the people of this technology in the disclosed technical scope of the utility model; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (2)
1. two-way shut-off valve, by valve gap, valve body, handwheel, valve rod, buoyant beam and sealing gasket are formed, it is characterized in that: described valve gap is connected with described valve seal, described valve rod inserts described valve gap, the end that described valve rod stretches into described valve gap is a hollow, the other end is connected with described handwheel, described buoyant beam is a T font rod member, buoyant beam one end stretches into the hollow space of described valve rod, the other end connects described sealing gasket, described valve body has liquid entering hole and liquid outlet, and the neutral position is provided with the spool that has opening in the valve body, the opening of the corresponding described spool of described sealing gasket.
2. two-way shut-off valve according to claim 1 is characterized in that: the diameter of described buoyant beam and described sealing gasket connecting end is greater than sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202060288U CN201680012U (en) | 2010-05-28 | 2010-05-28 | Bidirectional check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202060288U CN201680012U (en) | 2010-05-28 | 2010-05-28 | Bidirectional check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201680012U true CN201680012U (en) | 2010-12-22 |
Family
ID=43345056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202060288U Expired - Fee Related CN201680012U (en) | 2010-05-28 | 2010-05-28 | Bidirectional check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201680012U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588635A (en) * | 2011-07-21 | 2012-07-18 | 天津市国威给排水设备制造有限公司 | Return stop valve |
| CN102927302A (en) * | 2011-12-08 | 2013-02-13 | 邹岳明 | Two-way stop valve |
| CN103307321A (en) * | 2013-06-09 | 2013-09-18 | 温州市森泰环保设备有限公司 | Floating device of one-way valve of mud plunger pump |
-
2010
- 2010-05-28 CN CN2010202060288U patent/CN201680012U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588635A (en) * | 2011-07-21 | 2012-07-18 | 天津市国威给排水设备制造有限公司 | Return stop valve |
| CN102927302A (en) * | 2011-12-08 | 2013-02-13 | 邹岳明 | Two-way stop valve |
| CN103307321A (en) * | 2013-06-09 | 2013-09-18 | 温州市森泰环保设备有限公司 | Floating device of one-way valve of mud plunger pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20110528 |