CN206320363U - A kind of bivalve flap-type axle flow check valve - Google Patents
A kind of bivalve flap-type axle flow check valve Download PDFInfo
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- CN206320363U CN206320363U CN201621462837.9U CN201621462837U CN206320363U CN 206320363 U CN206320363 U CN 206320363U CN 201621462837 U CN201621462837 U CN 201621462837U CN 206320363 U CN206320363 U CN 206320363U
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- flap
- flow
- main valve
- valve
- type axle
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Abstract
A kind of bivalve flap-type axle flow check valve, by being further added by passage flow duct always on the basis of conventional shaft flow check valve annular channel, valve flowing channel area is set to be equal to pipeline area, what medium can be smoothed out flows through valve, energy loss is relatively small, when arrival end medium touches main valve clack, main valve clack is opened in the presence of medium power, medium is discharged by the annular channel of valve body, when rate-of flow increases, secondary flap is opened, and medium is from circular passage and centre while excessively stream, the problems such as increasing in the absence of the flow velocity that builds the pressure.
Description
Technical field
The utility model is specifically related to valve technology field, and in particular to a kind of bivalve flap-type axle flow check valve.
Background technology
Check-valves is mainly used in flow of media and prevents that medium from flowing backwards to cause pump and motor to damage in pipe-line system.Only
The runner open area for returning valve determines pipeline medium energy loss size, under the big form of energy-saving and emission-reduction, lifting check-valves
Flow resistance and medium are quite important by property.
Bivalve flap-type axle flow check valve is big for current axis flow check valve flow resistance coefficient, and medium is small and research and develop and upgrade by property
's.Conventional shaft flow check valve is moved after valve opening state lower Disc, and medium is flowed through by the annular channel of flap surrounding, due to axle stream
The limitation of check valve body cavity configuration, causes medium to flow through aisle spare small relative to pipeline, therefore medium is when flowing through valve
Pressure and flow velocity increase, wash away seriously, energy loss is big to body cavity and sealing surface.
The content of the invention
It is of the present utility model to provide a kind of bivalve flap-type axle flow check valve in order to solve the deficiencies in the prior art.
The utility model use technical solution be：A kind of bivalve flap-type axle flow check valve, including valve body, valve seat with
And main valve clack, described valve body is interior to be provided with baffle, described baffle and valve interior wall formation first flow, described water conservancy diversion
Main valve stem is provided with vivo, and described main valve stem slides with baffle to be coordinated, and described main valve clack is located at main valve stem one end and and valve
Seat sealing coordinates, and is additionally provided with the middle of (the first back-moving spring, described main valve stem and is additionally provided between described main valve clack and baffle
Through hole is provided with the middle of second flow channel, described main valve clack, described through hole is connected with second flow channel, the in described main valve stem
Time flap is additionally provided with two runners, slides and coordinates between described secondary flap and main valve stem, described secondary flap includes and through hole
Seal the first position coordinated and secondary flap is opened, the second place of second flow channel excessively stream.
Flow guide sleeve is provided with described baffle, described main valve stem is arranged in flow guide sleeve and matched somebody with somebody with flow guide sleeve sliding
Close.
Described flow guide sleeve is provided with installation base, and described (the first back-moving spring is arranged on installation base.
Described main valve stem inner side is provided with bearing, and described bearing is provided with time valve rod, and described secondary flap is arranged on secondary
Slide and coordinate on valve rod, between described secondary valve rod and bearing.
Second back-moving spring is arranged with described secondary valve rod.
Described baffle afterbody is provided with fluid issuing, described fluid issuing and second flow channel insertion.
Described first flow is venturi runner.
The beneficial effects of the utility model are：The utility model provide a kind of bivalve flap-type axle flow check valve, by
Passage flow duct always is further added by the basis of conventional shaft flow check valve annular channel, valve flowing channel area is equal to pipeline area,
What medium can be smoothed out flows through valve, and energy loss is relatively small, when arrival end medium touches main valve clack, and main valve clack is being situated between
Opened in the presence of matter power, medium is discharged by the annular channel of valve body, when rate-of flow increases, and secondary flap is opened, medium
From circular passage and middle excessively stream, the problems such as increasing in the absence of the flow velocity that builds the pressure simultaneously.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
1- valve bodies in figure, 2- main valve clacks, 3- baffles, 4- flap, 11- valve seats, 12- first flows, 21- through holes, 31-
Main valve stem, 32- (the first back-moving springs, 33- second flow channels, 34- flow guide sleeves, 35- installation bases, 36- bearings, 37- fluid issuings,
41- valve rod, 42- second back-moving springs.
Embodiment
The utility model is further described in conjunction with Fig. 1, a kind of bivalve flap-type axle flow check valve, including valve body 1,
Baffle 3 is provided with valve seat 11 and main valve clack 2, described valve body 1, described baffle 3 forms first-class with the inwall of valve body 1
Road 12, described first flow 12 is venturi runner.Main valve stem 31, described main valve stem 31 are provided with described baffle 3
Slide and coordinate with baffle 3, flow guide sleeve 34 is provided with described baffle 3, described main valve stem 31 is arranged in flow guide sleeve 34
And slide cooperation with flow guide sleeve 34.Described main valve clack 2 is located at the one end of main valve stem 31 and sealed with valve seat 11 and coordinated, described master
(the first back-moving spring 32 is additionally provided between flap 2 and baffle 3, described flow guide sleeve 34 is provided with installation base 35, described
(the first back-moving spring 32 is arranged on installation base 35.Second flow channel 33, described master are additionally provided with the middle of described main valve stem 31
Through hole 21 is provided with the middle of flap 2, described through hole 21 is connected with second flow channel 33, the second flow channel 33 in described main valve stem 31
On be additionally provided with time flap 4, slide and coordinate between described secondary flap 4 and main valve stem 31, the described inner side of main valve stem 31 provided with
Seat 36, described bearing 36 is provided with time valve rod 41, and described secondary flap 4 is arranged on time valve rod 41, described secondary valve rod 41
Slide and coordinate between bearing 36.Described secondary flap 4 includes sealing the first position coordinated and secondary flap 4 dozens with through hole 21
Open, the second place of the excessively stream of second flow channel 33.Second back-moving spring 42 is arranged with described secondary valve rod 41.The utility model exists
Passage flow duct always is further added by the basis of conventional shaft flow check valve annular channel, valve flowing channel area is equal to pipeline area,
What medium can be smoothed out flows through valve, and energy loss is relatively small.
When arrival end medium touches flap, main valve clack is opened in the presence of medium power, the ring that medium passes through valve body
Shape runner is discharged.When rate-of flow increases, secondary flap is opened, and medium is from circular passage and middle excessively stream simultaneously, in the absence of suppressing
The problems such as pressure flow velocity increases.
The described afterbody of baffle 3 is provided with fluid issuing 37, described fluid issuing 37 and the insertion of second flow channel 33.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (7)
1. a kind of bivalve flap-type axle flow check valve, including valve body（1）, valve seat（11）And main valve clack（2）, described valve body（1）
It is interior to be provided with baffle（3）, described baffle（3）With valve body（1）Inwall formation first flow（12）, described baffle（3）
It is interior to be provided with main valve stem（31）, described main valve stem（31）With baffle（3）Sliding coordinates, described main valve clack（2）Positioned at main valve
Bar（31）One end and and valve seat（11）Sealing coordinates, described main valve clack（2）With baffle（3）Between be additionally provided with the first reset bullet
Spring（32）, it is characterised in that described main valve stem（31）Centre is additionally provided with second flow channel（33）, described main valve clack（2）It is middle
Provided with through hole（21）, described through hole（21）With second flow channel（33）Connection, described main valve stem（31）Interior second flow channel
（33）On be additionally provided with time flap（4）, described secondary flap（4）With main valve stem（31）Between slide coordinate, described secondary flap（4）
Including with through hole（21）Seal the first position coordinated and secondary flap（4）Open, second flow channel（33）The second place of excessively stream.
2. a kind of bivalve flap-type axle flow check valve according to claim 1, it is characterised in that described baffle（3）It is interior
Provided with flow guide sleeve（34）, described main valve stem（31）Installed in flow guide sleeve（34）Interior and and flow guide sleeve（34）Sliding coordinates.
3. a kind of bivalve flap-type axle flow check valve according to claim 2, it is characterised in that described flow guide sleeve（34）On
Provided with installation base（35）, described (the first back-moving spring（32）Installed in installation base（35）On.
4. a kind of bivalve flap-type axle flow check valve according to claim 1, it is characterised in that described main valve stem（31）It is interior
Side is provided with bearing（36）, described bearing（36）Provided with time valve rod（41）, described secondary flap（4）Installed in secondary valve rod（41）
On, described secondary valve rod（41）With bearing（36）Between slide coordinate.
5. a kind of bivalve flap-type axle flow check valve according to claim 4, it is characterised in that described secondary valve rod（41）On
It is arranged with second back-moving spring（42）.
6. a kind of bivalve flap-type axle flow check valve according to claim 1, it is characterised in that described baffle（3）Tail
Portion is provided with fluid issuing（37）, described fluid issuing（37）With second flow channel（33）Insertion.
7. a kind of bivalve flap-type axle flow check valve according to claim 1, it is characterised in that described first flow（12）
For venturi runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621462837.9U CN206320363U (en) | 2016-12-29 | 2016-12-29 | A kind of bivalve flap-type axle flow check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621462837.9U CN206320363U (en) | 2016-12-29 | 2016-12-29 | A kind of bivalve flap-type axle flow check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206320363U true CN206320363U (en) | 2017-07-11 |
Family
ID=59260561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621462837.9U Active CN206320363U (en) | 2016-12-29 | 2016-12-29 | A kind of bivalve flap-type axle flow check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206320363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11976747B2 (en) | 2019-03-20 | 2024-05-07 | Danfoss A/S | Compressor unit with a damped axial check valve for a discharge outlet |
-
2016
- 2016-12-29 CN CN201621462837.9U patent/CN206320363U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11976747B2 (en) | 2019-03-20 | 2024-05-07 | Danfoss A/S | Compressor unit with a damped axial check valve for a discharge outlet |
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| GR01 | Patent grant |