CN204756038U - Upper assembling type check valve of removable disk seat - Google Patents
Upper assembling type check valve of removable disk seat Download PDFInfo
- Publication number
- CN204756038U CN204756038U CN201520476190.4U CN201520476190U CN204756038U CN 204756038 U CN204756038 U CN 204756038U CN 201520476190 U CN201520476190 U CN 201520476190U CN 204756038 U CN204756038 U CN 204756038U
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- CN
- China
- Prior art keywords
- valve
- valve body
- disk seat
- valve seat
- screw
- 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.)
- Withdrawn - After Issue
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- Check Valves (AREA)
Abstract
The utility model discloses an upper assembling type check valve of removable disk seat, appear including valve body, disk seat, valve gap, valve clack, O and enclose, the junction of valve body and disk seat is provided with and becomes 45 the inclined plane of screwing up with valve body passageway axis, the disk seat joint is on the valve body, screw up on disk seat and the valve body and pass through the fix with screw between the inclined plane. Be provided with O shape circle on the disk seat of the perpendicular sealed face junction of disk seat and valve body. The utility model provides a pair of upper assembling type check valve of removable disk seat, it becomes 45 the inclined plane of screwing up to set up on the valve body with valve body passageway axis, and seal the face with valve body passageway axis vertically, fix the disk seat on the valve body through the screw, wrong income along with the screw, the component of pulling force on the passageway axis that produces between the screw thread is vice is with the compression of O shape circle, produce elastic deformation, realize disk seat and body seals, convenient processing, the equipment, the maintenance, really realize the removable market demand of disk seat.
Description
Technical field
The utility model relates to a kind of upper dress formula safety check of valve with changeable valve seat, belongs to valve arrangement technical field.
Background technique
Safety check is widely used in the industries such as power station, oil, chemical industry, pharmacy, food.Directly can support the use with import equipment.The function of Swing check valve is used to prevent the medium in pipeline from flowing backwards.Safety check belongs to self-acting valve class, and open-shut device is opened voluntarily by the strength of flowing medium or closes.Safety check, only for the pipeline of medium one-way flow, stops medium back flow, and the integrity of protection upstream equipment, in case have an accident.
But, the Swing check valve structure of traditional design is single, the perfectly round heaviness of valve body lumen, valve seat construction mostly is welding or screw thread is fixed, processing difficulties and required precision is high, online replacing, maintenance valve seat inner body can not be realized, if need to change valve seat, then pipeline must be made to stop production, valve is removed from pipeline, process equipment is used weld seam or screw thread to be cut open, and again welding or machining screw, test valve again after re-assemblying part, maintenance or the manufacture cycle longer, cost of labor is very expensive, and its application area is greatly limited.
Conventional check valves valve body seals together with being generally with the sealing of valve gap, once the probability that the increase fluid immediately that lost efficacy is revealed to environment, and then pollutant atmosphere.
The too perfectly round heaviness of valve lumen, even if configuration peripheral hardware driving mechanism still cannot ensure flap standard-sized sheet, namely valve channel by wiper or cannot carry out pipeline test, affects valve applications and working life.
Model utility content
Object: in order to overcome the deficiencies in the prior art, the utility model provides a kind of upper dress formula safety check of valve with changeable valve seat.
Technological scheme: for solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of upper dress formula safety check of valve with changeable valve seat, comprise valve body, valve seat, valve gap, flap, the joint of described valve body and valve seat is provided with at 45 °ly with valve channel axis tightens inclined-plane, and described valve seat is connected on valve body, described valve seat and valve body is tightened between inclined-plane and is fixed by screw.
Also comprise O shape circle, the valve seat of described valve seat and joint, valve body vertical seal face is provided with O shape and encloses.Described flap outer surface is provided with O shape circle.Described flap upper O-shape ring internal diameter is less than valve seat upper O-shape ring internal diameter.
Preferably, described valve gap is removably disposed in body top, and described flap can pass in and out from body top.
Preferably, described valve body lumen vibrational power flow is that flap is by the track profile of closed position to fully open position.
Beneficial effect: the upper dress formula safety check of a kind of valve with changeable valve seat that the utility model provides, utilize Separated valve seat structure, valve body is offered and at 45 °ly with valve channel axis tightens inclined-plane and the sealing surface with valve channel axes normal, by screw, valve seat is fixed on valve body, along with being screwed into of screw, the component of the pulling force produced between screw pair in passage axis is by the compression of O shape circle, produce resiliently deformable, realize valve seat and valve seal, convenient processing, assembling, maintenance, really realize the removable market demand of valve seat.Valve base sealing part, the flap assembly of safety check load from valve body top or remove, and can realize changing inner body online.Bearing pin place configuration peripheral hardware driving mechanism, effectively ensure flap standard-sized sheet, valve channel can realize by wiper or carry out pipeline test, reduces corrosive pipeline, increases valve working life.Columniform valve body lumen is changed into along with flap is by the track profile of closed position to fully open position, effectively ensure that valve wide open, valve channel are smooth and easy and pass through wiper.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the enlarged view at X position.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1 and Figure 2, a kind of upper dress formula safety check of valve with changeable valve seat, comprise valve body 1, valve seat 2, valve gap 3, flap 4, described valve body 1 and the joint of valve seat 2 are provided with at 45 °ly with valve body 1 passage axis tightens inclined-plane 5, described valve seat 2 is connected on valve body 1, described valve seat 2 and valve body 1 is tightened between inclined-plane 5 and is fixed by screw 6.Also comprise O shape circle 7, the valve seat 2 of described valve seat 2 and joint, valve body 1 vertical seal face 7 is provided with O shape and encloses 8.Described flap 4 outer surface is provided with O shape circle 8.Flap upper O-shape ring internal diameter is less than valve seat upper O-shape ring internal diameter.Utilize Separated valve seat structure, valve body is offered and at 45 °ly with valve channel axis tightens inclined-plane and the sealing surface with valve channel axes normal, valve seat is also configured with equal angular tapped hole simultaneously, valve body bore and valve seat adopt Spielpassung, because screw axis and valve channel axis are 45 °, along with being screwed into of screw, the component of the pulling force produced between screw pair in passage axis is by the compression of O shape circle, produce resiliently deformable, realize valve seat and valve seal.Utilize O shape to enclose difference in internal diameters, medium produces active force on valve body vertical seal face, enhances sealing.
Preferably, described valve gap 3 is removably disposed in valve body 1 top, and described flap 4 can pass in and out from valve body 1 top.Valve base sealing part, the flap assembly of safety check load from valve body top or remove, and can realize changing inner body online.
Preferably, described valve body lumen 9 vibrational power flow is that flap 4 is by the track profile of closed position to fully open position.Effective guarantee valve wide open, valve channel is smooth and easy passes through wiper.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. the upper dress formula safety check of a valve with changeable valve seat, comprise valve body, valve seat, valve gap, flap, it is characterized in that: the joint of described valve body and valve seat is provided with at 45 °ly with valve channel axis tightens inclined-plane, described valve seat is connected on valve body, described valve seat and valve body is tightened between inclined-plane and is fixed by screw.
2. the upper dress formula safety check of a kind of valve with changeable valve seat according to claim 1, is characterized in that: also comprise O shape circle, the valve seat of described valve seat and joint, valve body vertical seal face is provided with O shape and encloses.
3. the upper dress formula safety check of a kind of valve with changeable valve seat according to claim 2, is characterized in that: described flap outer surface is provided with O shape circle; Described flap upper O-shape ring internal diameter is less than valve seat upper O-shape ring internal diameter.
4. the upper dress formula safety check of a kind of valve with changeable valve seat according to claim 1, it is characterized in that: described valve gap is removably disposed in body top, described flap can pass in and out from body top.
5. the upper dress formula safety check of a kind of valve with changeable valve seat according to claim 1, is characterized in that: described valve body lumen vibrational power flow is that flap is by the track profile of closed position to fully open position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520476190.4U CN204756038U (en) | 2015-07-06 | 2015-07-06 | Upper assembling type check valve of removable disk seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520476190.4U CN204756038U (en) | 2015-07-06 | 2015-07-06 | Upper assembling type check valve of removable disk seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204756038U true CN204756038U (en) | 2015-11-11 |
Family
ID=54470745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520476190.4U Withdrawn - After Issue CN204756038U (en) | 2015-07-06 | 2015-07-06 | Upper assembling type check valve of removable disk seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204756038U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964070A (en) * | 2015-07-06 | 2015-10-07 | 昆山维萨阀门有限公司 | Top entry check valve with replaceable valve base |
-
2015
- 2015-07-06 CN CN201520476190.4U patent/CN204756038U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964070A (en) * | 2015-07-06 | 2015-10-07 | 昆山维萨阀门有限公司 | Top entry check valve with replaceable valve base |
| CN104964070B (en) * | 2015-07-06 | 2018-01-05 | 昆山维萨阀门有限公司 | A kind of upper dress formula check-valves of valve with changeable valve seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151111 Effective date of abandoning: 20180105 |
|
| AV01 | Patent right actively abandoned |