CN207777700U - A kind of check valve - Google Patents
A kind of check valve Download PDFInfo
- Publication number
- CN207777700U CN207777700U CN201820047574.8U CN201820047574U CN207777700U CN 207777700 U CN207777700 U CN 207777700U CN 201820047574 U CN201820047574 U CN 201820047574U CN 207777700 U CN207777700 U CN 207777700U
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- China
- Prior art keywords
- shift fork
- valve body
- flange
- exhaust
- spring
- 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.)
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Abstract
The utility model discloses a kind of check valves, it include mainly valve body, bushing, shift fork, spring, positioning sleeve, locating wheel, movable valve plug, axis pin, sliding block, discharge set, connecting flange, gasket, it is vented disk, exhaust flange, inner passage center is equipped with bushing on the right side of valve body, the front end of movable valve plug is passed through among bushing, one end of the middle section connection shift fork of movable valve plug, movable valve plug is equipped with spring among tail portion, spring is subsequent to be equipped with positioning sleeve, valve body internal passage left end is equipped with locating wheel, it is mounted on valve body by axis pin in the middle part of shift fork, shift fork other end connection sliding block, sliding block and the lower surface cooperation of discharge set, body top installs connecting flange, exhaust flange is installed at the top of connecting flange, in exhaust flange disk is vented equipped with multilayer, gasket is accompanied between exhaust disk.The utility model valve is bypassed with automatic recirculating, and for feed pump in underload or outlet valve closed state, automatic idle discharge ensures the safe operation of water pump.
Description
Technical field
The utility model is related to the fields of check-valves, and in particular to a kind of check valve.
Background technology
With the fast development of power industry, the various big pump extensive uses of high pressure water prevent water supply from falling to protect water pump
Stream, the outlet of feed pump must install check-valves.Before check valve product, the check-valves that exit of pump uses is mostly general
Logical check-valves.General check valve does not account for high-pressure hydraulic pump in the technology requirement of product and structure design and uses particularity,
Therefore product is to the protection of water pump there are unsafe hidden danger, for example water pump is in underload or outlet valve closed state,
Water pump works instantaneous superpressure, leads to the damage of water pump.Therefore the exploitation design of check valve is just come into being.
Utility model content
The purpose of the utility model is to overcome the shortcomings of the prior art, and provide a kind of check valve.
The purpose of this utility model is completed by following technical solution：This check valve includes mainly valve
Body, bushing, shift fork, spring, positioning sleeve, locating wheel, movable valve plug, axis pin, sliding block, discharge set, connecting flange, gasket, row
Gas disk, exhaust flange, valve body right side inner passage center are equipped with bushing, the front end of movable valve plug, activity are passed through among bushing
The middle section of spool connects one end of shift fork, is equipped with spring among movable valve plug tail portion, spring is subsequent to be equipped with positioning
Set, valve body internal passage left end are equipped with locating wheel, are mounted on valve body by axis pin in the middle part of shift fork, the connection of the shift fork other end
Sliding block, sliding block and the lower surface cooperation of discharge set, body top install connecting flange, exhaust flange, row are installed at the top of connecting flange
It is vented disk equipped with multilayer in gas flange, gasket is accompanied between exhaust disk.
The beneficial effects of the utility model are：
1, valve is bypassed with automatic recirculating, and feed pump is automatic empty in underload or outlet valve closed state
Row ensures the safe operation of water pump.
2, when valve is closed, flap is pushed to be sealed in addition to flowing backwards medium, also spring pushes valve
Pretightning force further ensures the leakproofness of valve, to achieve the effect that prevent medium from flowing backwards.
3, the sealing structure of recycling bypass uses spherical sealed, after shift fork action, the comprehensive sealing of steel ball energy.It protects
When demonstrate,proving check-valves unlatching, bypass has good leakproofness.
4, recycling bypass outlet is provided with exhaust disk, and the several restricting orifices for opening aperture of closed assembly, make medium drop in disk
Safety dumping is pressed, ensures the safety of bypass outlet pipeline not superpressure.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Reference sign：Valve body 1, bushing 2, shift fork 3, spring 4, positioning sleeve 5, locating wheel 6, movable valve plug 7, axis pin 8,
Sliding block 9, discharge set 10, connecting flange 11, gasket 12, exhaust disk 13, exhaust flange 14.
Specific implementation mode
Detailed introduction is done to the utility model below in conjunction with attached drawing：
As shown in the picture, this check valve includes mainly valve body 1, bushing 2, shift fork 3, spring 4, positioning sleeve 5, determines
Position wheel 6, movable valve plug 7, axis pin 8, sliding block 9, discharge set 10, connecting flange 11, gasket 12, exhaust disk 13, exhaust flange 14,
1 right side inner passage center of valve body is equipped with bushing 2, and the front end of movable valve plug 7, the centre of movable valve plug 7 are passed through among bushing 2
Part connects one end of shift fork 3, is equipped with spring 4 among 7 tail portion of movable valve plug, spring 4 is subsequent to be equipped with positioning sleeve 5, valve
1 inner passage left end of body is equipped with locating wheel 6, and 3 middle part of shift fork is mounted on by axis pin 8 on valve body 1, and 3 other end of shift fork connects
Sliding block 9, sliding block 9 and the 10 lower surfaces cooperation of discharge set are connect, connecting flange 11,11 top installation of connecting flange are installed in 1 top of valve body
Exhaust flange 14, exhaust flange 14 is interior to be vented disk 13 equipped with multilayer, and gasket 12 is accompanied between exhaust disk 13.
The medium of exit of pump enters check valve, pushes flap, overcomes the pretightning force of spring 4, to open flap,
Medium is set to be flowed toward process pipeline direction, recycling bypass at this time is closed.When feed pump is closed in underload or outlet valve
When state, spring 4 pushes flap action to drive shift fork 3, so that automatic recirculating bypass is in the open position, to ensure the peace of water pump
Row for the national games.
The sealing of recycling bypass uses steel ball sealing, reaches reliable sealing effect.Recycling bypass outlet is provided with
It is vented disk 13, medium is made to be depressured safety dumping.
It is understood that it will be understood by those skilled in the art that the technical solution of the utility model and utility model structure
Think of, which is subject to equivalent substitution or change all, should belong to the protection domain of the utility model the attached claims.
Claims (1)
1. a kind of check valve, it is characterised in that：Include mainly valve body (1), bushing (2), shift fork (3), spring (4), positioning
Cover (5), locating wheel (6), movable valve plug (7), axis pin (8), sliding block (9), discharge set (10), connecting flange (11), gasket
(12), exhaust disk (13), exhaust flange (14), valve body (1) right side inner passage center are equipped with bushing (2), and bushing (2) is intermediate
Front end across movable valve plug (7), one end of the middle section connection shift fork (3) of movable valve plug (7), movable valve plug (7) tail portion
Centre is equipped with spring (4), and spring (4) is subsequent to be equipped with positioning sleeve (5), and valve body (1) inner passage left end is equipped with fixed
Position wheel (6), shift fork (3) middle part are mounted on by axis pin (8) on valve body (1), shift fork (3) other end connection sliding block (9), sliding block
(9) it covers (10) lower surface with discharge to coordinate, installation connecting flange (11) at the top of valve body (1), the row of installation at the top of connecting flange (11)
Gas flange (14), exhaust flange (14) is interior to be vented disk (13) equipped with multilayer, and gasket (12) is accompanied between exhaust disk (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820047574.8U CN207777700U (en) | 2018-01-11 | 2018-01-11 | A kind of check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820047574.8U CN207777700U (en) | 2018-01-11 | 2018-01-11 | A kind of check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207777700U true CN207777700U (en) | 2018-08-28 |
Family
ID=63222968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820047574.8U Active CN207777700U (en) | 2018-01-11 | 2018-01-11 | A kind of check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207777700U (en) |
-
2018
- 2018-01-11 CN CN201820047574.8U patent/CN207777700U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |