CN104964070A - Top entry check valve with replaceable valve base - Google Patents
Top entry check valve with replaceable valve base Download PDFInfo
- Publication number
- CN104964070A CN104964070A CN201510387410.0A CN201510387410A CN104964070A CN 104964070 A CN104964070 A CN 104964070A CN 201510387410 A CN201510387410 A CN 201510387410A CN 104964070 A CN104964070 A CN 104964070A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- valve body
- base
- flap
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a top entry check valve with a replaceable valve base. The check valve comprises a valve body, the valve base, a valve deck, a valve clack and an O-ring; a screwing slope is arranged at the connecting position of the valve body and the valve base, wherein a 45-degree angle is formed between the screwing slope and the axis of a valve body channel, the valve base is clamped on the valve body, and the valve base and the screwing slope on the valve body are fixed through a screw; the O-ring is arranged at the position, where the valve base is connected with the vertical sealing face of the valve body, of the valve base. According to the top entry check valve with the replaceable valve base, as the screwing slope is formed in the valve body, wherein the 45-degree angle is formed between the screwing slope and the axis of the valve body channel, the sealing face perpendicular to the axis of the valve body channel is arranged, and the valve base is fixed to the valve body through the screw, while the screw is screwed in, the O-ring is compressed by component force, on the axis of the channel, of tension generated between thread pairs to generate elastic deformation so as to seal the valve base and the valve body, and the top entry check valve is convenient to machine, assemble and maintain and really meets the requirement for the replaceable valve base.
Description
Technical field
The present invention relates to a kind of upper dress formula safety check of valve with changeable valve seat, belong 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.
Summary of the invention
Object: in order to overcome the deficiencies in the prior art, the invention 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 used in the present invention 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 provided by the invention, 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 invention;
Fig. 2 is the enlarged view at X position.
Embodiment
Below in conjunction with accompanying drawing, the present invention 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 the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
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 |
|---|---|---|---|
| CN201510387410.0A CN104964070B (en) | 2015-07-06 | 2015-07-06 | A kind of upper dress formula check-valves of valve with changeable valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510387410.0A CN104964070B (en) | 2015-07-06 | 2015-07-06 | A kind of upper dress formula check-valves of valve with changeable valve seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104964070A true CN104964070A (en) | 2015-10-07 |
| CN104964070B CN104964070B (en) | 2018-01-05 |
Family
ID=54218122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510387410.0A Active CN104964070B (en) | 2015-07-06 | 2015-07-06 | A kind of upper dress formula check-valves of valve with changeable valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104964070B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080308159A1 (en) * | 2007-06-15 | 2008-12-18 | Stunkard Gerald A | Top entry swing check valve |
| CN202418752U (en) * | 2011-12-29 | 2012-09-05 | 江苏金石机械集团有限公司 | Swing check valve |
| CN202691171U (en) * | 2012-07-12 | 2013-01-23 | 苏州道森阀门有限公司 | High pound level forged steel full-open swing check valve |
| CN203532877U (en) * | 2013-09-24 | 2014-04-09 | 温州优派流体控制设备有限公司 | Check valve with replaceable valve seat |
| CN204756038U (en) * | 2015-07-06 | 2015-11-11 | 昆山维萨阀门有限公司 | Upper assembling type check valve of removable disk seat |
-
2015
- 2015-07-06 CN CN201510387410.0A patent/CN104964070B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080308159A1 (en) * | 2007-06-15 | 2008-12-18 | Stunkard Gerald A | Top entry swing check valve |
| CN202418752U (en) * | 2011-12-29 | 2012-09-05 | 江苏金石机械集团有限公司 | Swing check valve |
| CN202691171U (en) * | 2012-07-12 | 2013-01-23 | 苏州道森阀门有限公司 | High pound level forged steel full-open swing check valve |
| CN203532877U (en) * | 2013-09-24 | 2014-04-09 | 温州优派流体控制设备有限公司 | Check valve with replaceable valve seat |
| CN204756038U (en) * | 2015-07-06 | 2015-11-11 | 昆山维萨阀门有限公司 | Upper assembling type check valve of removable disk seat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104964070B (en) | 2018-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201992115U (en) | Cavitation-preventive noise reduction type V-shaped ball valve | |
| CN203549193U (en) | Spherical flange joint structure | |
| CN204756038U (en) | Upper assembling type check valve of removable disk seat | |
| CN105697825A (en) | Novel one-way valve element structure | |
| CN104964070A (en) | Top entry check valve with replaceable valve base | |
| CN202691171U (en) | High pound level forged steel full-open swing check valve | |
| CN201031960Y (en) | Three-dimensional eccentric metal inelasticity hard sealed butterfly valve sealing pair | |
| CN206338448U (en) | Ammonia check valve special | |
| CN202317726U (en) | Positioning tensioner | |
| CN212004365U (en) | Small-caliber upper-mounted low-temperature floating ball valve | |
| CN204739270U (en) | Soft and hard double-sealing swing check valve | |
| CN204344939U (en) | A kind of high-pressure stop valve | |
| CN103939634B (en) | Gate valve holder structure | |
| CN202554791U (en) | Fire monitor slewing mechanism with worm and worm gear transmission | |
| CN201963896U (en) | Symmetrical integral stop valve | |
| CN201636395U (en) | Straight-through check valve | |
| CN201651333U (en) | Special valve for chlorine gas | |
| CN204300391U (en) | A kind of two way sealed high-performance butterfly valve | |
| CN109340388B (en) | Valve rod | |
| CN101392845A (en) | Broadspectrum corrosion resistant wear resistant rising-down check valve | |
| CN212004533U (en) | Large-diameter corrugated pipe gate valve | |
| CN205298627U (en) | Single welding seam welding formula ball valve | |
| CN202992252U (en) | Valve stem for high-temperature high-pressure stop valve | |
| CN102287554A (en) | Direct-current stop valve for double-insurance corrugated pipe | |
| CN113753502B (en) | Star-shaped rotary valve with split valve cover and brand-new valve rod sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jinxi town Jin Lu Kunshan Road, Suzhou City, Jiangsu Province, No. 18 215324 Patentee after: Kunshan Weisa Valve Co., Ltd. Address before: Jinxi town Jin Lu Kunshan Road, Suzhou City, Jiangsu Province, No. 18 215324 Patentee before: Kunshan Weisa Valve Co., Ltd. |