CN104948783A - High-class double-disc wafer type check valve without outside leakage - Google Patents
High-class double-disc wafer type check valve without outside leakage Download PDFInfo
- Publication number
- CN104948783A CN104948783A CN201510404596.6A CN201510404596A CN104948783A CN 104948783 A CN104948783 A CN 104948783A CN 201510404596 A CN201510404596 A CN 201510404596A CN 104948783 A CN104948783 A CN 104948783A
- Authority
- CN
- China
- Prior art keywords
- block
- valve body
- rotating shaft
- groove
- stationary axle
- 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.)
- Pending
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Classifications
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- 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
- F16K15/033—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member spring-loaded
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/223—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of valve members
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/224—Details of bearings for the axis of rotation
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- 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
- F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
Abstract
The invention provides a high-class double-disc wafer type check valve without outside leakage. The high-class double-disc wafer type check valve comprises a valve body, discs, a fixed shaft and a rotating shaft, wherein two grooves are formed in opposite positions of the inner circumferential surface of the valve body and provided with openings in the upper end surface of the valve body, a fixing block and a stopping block are arranged in each groove, the stopping block is located above the fixing block, the fixing blocks in the two grooves are mounted at two ends of the rotating shaft, the two ends of the fixed shaft are supported on the stopping blocks in the two grooves respectively, and check nuts are arranged at two ends of the fixed shaft, are in threaded connection with the fixed shaft and tightly press the stopping blocks on the valve body. The check valve structure is fixed by the check nuts, and the processed grooves are shallower, so that the processing difficulty of the valve body can be effectively reduced. With the adoption of the structure, the fixing blocks and the stopping blocks can be put into the valve body quite conveniently, and the assembly is very convenient; the stopping blocks are tightly pressed on the valve body through the check nuts, and higher pressure can be borne, and accordingly, the check valve with the structure is more suitable for a high-class pipeline.
Description
Technical field
The present invention relates to a kind of safety check, particularly the high pound level of one is without the Bivalved Wafer Check Valves that leaks outside.
Background technique
Bivalved check valve belongs to Swing check valve, and because it has, compact structure, structure length are short, take up room the advantage such as little, in some gas-liquid pipe-line systems, therefore obtain application widely.Double-disc type check valve is primarily of valve body, flap, rotating shaft, stationary axle, the part compositions such as torsion spring, two symmetrically arranged semicircle sealing surfaces are provided with on the lower at the inner chamber of valve body, centre is provided with crossbeam and is separated by, on semicircle valve body sealing surface, correspondence is configured with two semicircle flaps, each flap is undertaken hinged by the hole on disposed thereon two axle ears and rotating shaft, the stationary axle with shaft parallel is also provided with in the upside of rotating shaft, rotating shaft and stationary axle are fixed on valve body by certain mode, rotating shaft is set with two torsion springs, a torque arm of torsion spring overlays on stationary axle, another torque arm is pressed on the back side of flap, initial sealing specific pressure is provided by suitable spring force.When valve uses, positive flow medium can promote two flaps and rotates and to folding to together, make valve be in opening state; And when medium flows backwards, then two flaps can be made to launch formation one full circle, now valve closing.
Chinese invention patent (patent No.: 201410374150.9) disclose a kind of Double-disc type check valve, valve is interior pin shaft structure, and trim is installed fixing by supporting base; In body cavity hole wall relative position, be provided with the square groove that rectangular is recessed, supporting base is embedded in square groove and obtains reliable and stable location; Between the two ends step surface of the axle ear side of supporting base and flap, stationary axle, be provided with the fixture block of tabular, it has lower bayonet slot and upper draw-in groove, lower bayonet slot snaps in the flat gesture groove in rotating shaft; Fixture block realizes locking position by the straight pin being arranged on supporting base, little spring is equipped with in its lower end; The inner side of fixture block is also provided with flanged packing ring, flange is placed in the lower bayonet slot of fixture block, on the downside of supporting base, be provided with the groove that can hold this flange.
Although this check valve structure can realize without leaking outside, processing is got up inconvenience very, at the inside of valve body processing square groove, and assembling, dismounting also unusual inconvenience, and inapplicablely to use in high pound level pipeline.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of structure simple, easy to assembly, the Bivalved Wafer Check Valves and the nothing being adapted at using in high pound level pipeline leaks outside.
For achieving the above object and other relevant objects, the invention provides a kind of high pound level without the Bivalved Wafer Check Valves that leaks outside, comprise valve body, flap, stationary axle and rotating shaft, described flap, stationary axle, rotating shaft is positioned at described valve body, what described stationary axle was parallel is arranged on above described rotating shaft, described flap by pin shaft hole and described rotating shaft hinged, described rotating shaft is also arranged with torsion spring, one end of described torsion spring overlays on flap, the other end of described torsion spring overlays on described stationary axle, described valve body inner peripheral surface is provided with the relative groove in two positions, described groove is provided with opening in the upper-end surface of described valve body, fixed block and block is provided with in described groove, described block is positioned at above described fixed block, fixed block in two grooves is arranged on the two ends of rotating shaft, the two ends of described stationary axle are supported on the block in two grooves respectively, the two ends of described stationary axle are provided with lock nut, described lock nut is threaded with described stationary axle, described block is pressed on described valve body by described lock nut.
Preferably, the bottom of described groove is provided with a block restraining groove, and described block is provided with chimb, and the chimb of described block is positioned at described block restraining groove.
Preferably, also check washer is provided with between described lock nut and described block.
Preferably, described groove is circular groove.
Preferably, described block is provided with through hole, and the two ends of described stationary axle are inserted in the through hole of corresponding block respectively.
As mentioned above, high pound level of the present invention has following beneficial effect without the Bivalved Wafer Check Valves that leaks outside: this check valve structure offers the groove of one end open on valve body, use lock nut is fixed, and therefore the working depth of groove is more shallow, effectively can reduce the difficulty of processing of valve body like this.Adopt this structure to put in valve body by fixed block, block very easily, assemble very convenient; Block is pressed on valve body by lock nut, and it is convenient not only to remove and install, and can bear larger pressure, and therefore the safety check of this structure is applicable to the use of high pound level pipeline more.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Fig. 3 is the structural representation of embodiment of the present invention block.
Fig. 4 is the plan view of Fig. 3.
Fig. 5 is the structural representation of embodiment of the present invention valve body.
Element numbers explanation.
1, valve body 2, fixed block 3, block 31, chimb 32, through hole 4, flap 5, rotating shaft 6, spacer ring 7, stationary axle 8, check washer 9, lock nut 10, torsion spring 11, hanger screw 12, circular groove 13, block restraining groove.
Embodiment
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this specification can understand other advantages of the present invention and effect easily.
Refer to Fig. 1,2.Notice, structure, ratio, size etc. that this specification institute accompanying drawings illustrates, content all only in order to coordinate specification to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this specification as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Figure 1, 2, the invention provides a kind of high pound level without the Bivalved Wafer Check Valves that leaks outside, it comprises valve body 1, is provided with two flaps 4, stationary axle 7 and rotating shaft 5 in valve body 1, flap 4 is provided with pin shaft hole, and rotating shaft 5 makes flap 4 and rotating shaft 5 hinged through two pin shaft holes successively.Be arranged in parallel a stationary axle 7 above rotating shaft 5, rotating shaft 5 is also arranged with two torsion springs 10, and the torque arm of torsion spring 10 one end overlays on flap 4, and the torque arm of torsion spring 10 the other end overlays on stationary axle 7, and such torsion spring 10 just can provide elastic force for two flaps 4.When valve uses, positive flow medium can promote two flaps 4 and rotates and to folding to together, make valve be in opening state; And when medium flows backwards, then can make two flaps 4 under the effect of torsion spring 10, launch formation one full circle, now valve closing.
The inner peripheral surface of valve body 1 is provided with two circular grooves that position is relative 12, block restraining groove 13(is provided with as shown in Figure 5) in the bottom of circular groove 12, fixed block 2 and block 3 is provided with in circular groove 12, the two ends of rotating shaft 5 extend in groove 12, fixed block 2 in two grooves 12 is arranged on the two ends of rotating shaft 5 respectively, and fixed block 2 is pushed down rotating shaft 5 and is limited.Block 3 is positioned at the top of fixed block 2, and the shape of block 3 is as described in Fig. 3,4, and it is a semicircular structure, and its lower end is provided with a chimb 31, and chimb 31 is positioned at block restraining groove 13, and block restraining groove 13 pairs of blocks 3 carry out spacing.Block 3 is provided with through hole 32, the two ends of stationary axle 7 are inserted in the through hole 32 of two groove 12 internal stops 3 respectively, on stationary axle 7, be also provided with lock nut 9 simultaneously, lock nut 9 is threaded with stationary axle 7, block 3 is pressed on the inner peripheral surface of valve body 1 by lock nut 9, so just stationary axle 7 can be fixed.In order to prevent lock nut 9 from getting loose, between lock nut 9 and block 3, be also provided with check washer 8.
This Bivalved Wafer Check Valves is when assembling, first two flaps 4 are lain on mounting platform, by rotating shaft 5 through the pin shaft hole on flap 4, spacer ring 6 is put into rotating shaft 5 mounting end and flap is fitted, torsion spring 10 is suitably out of shape between two pin shaft holes being placed on flap 4, rotating shaft 5 is continued the bearing pin axis hole forward through torsion spring 10 and the other end, subsequently another spacer ring 6 is put into rotating shaft 5 mounting end and flap 4 is fitted, then two fixed blocks 2 are placed in respectively the two ends of rotating shaft 5, put it in valve body 1, fixed block 2 is put into from interior two the arc surface groove faces of valve body 1.Again lock nut 9, check washer 8 are contained on stationary axle 7 in the lump, first two ends dress lock nut 9, refill check washer 8, finally refill block 3, then above whole assembly is put into valve body 1, the chimb 31 of block 3 is pushed in block restraining groove 13, then tightens lock nut 9, finally with hammer, its check washer 8 is loosened and be stuck between lock nut 9 and block 3.
This check valve structure offers the groove of one end open on valve body, and use lock nut to be fixed, therefore the working depth of groove is more shallow, effectively can reduce the difficulty of processing of valve body like this.Adopt this structure to put in valve body by fixed block, block very easily, assemble very convenient; Block is pressed on valve body by lock nut, and it is convenient not only to remove and install, and can bear larger pressure, and therefore the safety check of this structure is applicable to the use of high pound level pipeline more.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (5)
1. one kind high pound level is without the Bivalved Wafer Check Valves that leaks outside, comprise valve body, flap, stationary axle and rotating shaft, described flap, stationary axle, rotating shaft is positioned at described valve body, what described stationary axle was parallel is arranged on above described rotating shaft, described flap by pin shaft hole and described rotating shaft hinged, described rotating shaft is also arranged with torsion spring, one end of described torsion spring overlays on flap, the other end of described torsion spring overlays on described stationary axle, it is characterized in that: described valve body inner peripheral surface is provided with the relative groove in two positions, described groove is provided with opening in the upper-end surface of described valve body, fixed block and block is provided with in described groove, described block is positioned at above described fixed block, fixed block in two grooves is arranged on the two ends of rotating shaft, the two ends of described stationary axle are supported on the block in two grooves respectively, the two ends of described stationary axle are provided with lock nut, described lock nut is threaded with described stationary axle, described block is pressed on described valve body by described lock nut.
2. high pound level according to claim 1 is without the Bivalved Wafer Check Valves that leaks outside, and it is characterized in that: the bottom of described groove is provided with a block restraining groove, and described block is provided with chimb, and the chimb of described block is positioned at described block restraining groove.
3. high pound level according to claim 1 is without the Bivalved Wafer Check Valves that leaks outside, and it is characterized in that: be also provided with check washer between described lock nut and described block.
4. high pound level according to claim 1 is without the Bivalved Wafer Check Valves that leaks outside, and it is characterized in that: described groove is circular groove.
5. high pound level according to claim 1 is without the Bivalved Wafer Check Valves that leaks outside, and it is characterized in that: described block is provided with through hole, and the two ends of described stationary axle are inserted in the through hole of corresponding block respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510404596.6A CN104948783A (en) | 2015-07-10 | 2015-07-10 | High-class double-disc wafer type check valve without outside leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510404596.6A CN104948783A (en) | 2015-07-10 | 2015-07-10 | High-class double-disc wafer type check valve without outside leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104948783A true CN104948783A (en) | 2015-09-30 |
Family
ID=54163690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510404596.6A Pending CN104948783A (en) | 2015-07-10 | 2015-07-10 | High-class double-disc wafer type check valve without outside leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104948783A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3205911A1 (en) | 2016-02-15 | 2017-08-16 | Castflow Valves, S.L. | Dual plate swing check valve |
| EP3263960A1 (en) | 2016-06-24 | 2018-01-03 | Castflow Valves, S.L. | Dual plate swing check valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL185161B1 (en) * | 1996-07-30 | 2003-03-31 | Goodwin Internat Ltd | Double-flap check valve |
| CN201180823Y (en) * | 2008-03-17 | 2009-01-14 | 吴晓光 | Butterfly shaped bivalve type check valve |
| CN201373145Y (en) * | 2009-03-31 | 2009-12-30 | 浙江超达阀门股份有限公司 | Double-disc swing check valve |
| CN203036021U (en) * | 2013-01-23 | 2013-07-03 | 苏州澎瀚机械有限公司 | Bivalve wafer check valve |
| CN204729695U (en) * | 2015-07-10 | 2015-10-28 | 苏州彭瀚机械有限公司 | High pound level is without the Bivalved Wafer Check Valves that leaks outside |
-
2015
- 2015-07-10 CN CN201510404596.6A patent/CN104948783A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL185161B1 (en) * | 1996-07-30 | 2003-03-31 | Goodwin Internat Ltd | Double-flap check valve |
| CN201180823Y (en) * | 2008-03-17 | 2009-01-14 | 吴晓光 | Butterfly shaped bivalve type check valve |
| CN201373145Y (en) * | 2009-03-31 | 2009-12-30 | 浙江超达阀门股份有限公司 | Double-disc swing check valve |
| CN203036021U (en) * | 2013-01-23 | 2013-07-03 | 苏州澎瀚机械有限公司 | Bivalve wafer check valve |
| CN204729695U (en) * | 2015-07-10 | 2015-10-28 | 苏州彭瀚机械有限公司 | High pound level is without the Bivalved Wafer Check Valves that leaks outside |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3205911A1 (en) | 2016-02-15 | 2017-08-16 | Castflow Valves, S.L. | Dual plate swing check valve |
| EP3263960A1 (en) | 2016-06-24 | 2018-01-03 | Castflow Valves, S.L. | Dual plate swing check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170425 Address after: 215000 Jiangsu Suzhou city Wuzhong District town Xinfeng Road No. 458 Building 2 Applicant after: Suzhou Peng Han Valve Co. Ltd. Address before: 215000 Suzhou Road, Jiangsu Xinfeng Town of Wuzhong District Province, No. 458 Applicant before: SUZHOU PENGHAN MACHINERY CO., LTD. |
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| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150930 |
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| RJ01 | Rejection of invention patent application after publication |