CN206234406U - Swing check valve - Google Patents
Swing check valve Download PDFInfo
- Publication number
- CN206234406U CN206234406U CN201620878353.6U CN201620878353U CN206234406U CN 206234406 U CN206234406 U CN 206234406U CN 201620878353 U CN201620878353 U CN 201620878353U CN 206234406 U CN206234406 U CN 206234406U
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- CN
- China
- Prior art keywords
- flap
- swing check
- check valve
- valve
- valve shaft
- 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 is related to a kind of swing check valve.Swing check valve includes valve body, and the valve body is connected with inlet duct and outlet conduit；And flap, the flap is fixed on valve shaft, and one end insertion axle sleeve of the valve shaft, the other end is stretched out, and the axle sleeve is fixed on the valve body.
Description
Technical field
The utility model is related to the control device technical field on medium pipeline, has square more specifically to one kind
The low flow resistance swing check valve of tee section runner.
Background technology
In industrial circle, generally provide check valves to control the one-way flow of medium on medium delivery pipe road, so that
Prevent medium from flowing backwards.Check-valves belongs to a kind of automatic valve, and it relies on medium itself to flow and automatically open and close flap.
The effect of check-valves is to prevent medium from flowing backwards, prevent pump and drive motor reversion and vessel media from releasing.Prior art
In the conventional check valves used mainly including swing check valve, lift check valve, butterfly swing check valve etc..In the market
Check-valves is designed for circular pipe substantially.And for the check of fluid in rectangular duct, currently employed main method has two
Kind：A kind of to be using valve body structure constant and the circular flange of valve is changed into by the way of rectangular flange to solve, another kind is
The section of rectangular tube is become round by pipe by corresponding pipe fitting typical round check-valves is then installed again.Prior art it is above-mentioned
Valve is when rectangular duct, because the reason in its structure, there is inevitable defect or deficiency：For example to being situated between
More acutely, the influence of fluid flow state is big for mass flow disturbance；Check-valves is larger to resistance of medium, consumes larger conveying energy
Amount；The consumable accessory maintenance of valve inside and replacing are more difficult.
Utility model content
For drawbacks described above present in prior art, the utility model provides a kind of for rectangular duct, to medium
Flowing interference and the swing type energy saving check valve that resistance is small, for ease of maintenaince change.
According to preferred embodiment of the present utility model, there is provided a kind of swing check valve, it includes：Valve body, the valve
Body is connected with inlet duct and outlet conduit；And flap, the flap is fixed on valve shaft, one end insertion axle of the valve shaft
Set, the other end is stretched out, and the axle sleeve is fixed on the valve body.
According to preferred embodiment of the present utility model, the valve shaft connects counter weight device, and the counter weight device includes handle
And weighted spherical ball, wherein counter weight device is fixed on valve shaft by fastening bolt.
According to preferred embodiment of the present utility model, the body of the counter weight device is by two handle groups at an angle
Into.
According to preferred embodiment of the present utility model, the counter weight device by bolt or other be detachably connected mode consolidate
Surely the external part of valve shaft is arrived.
According to preferred embodiment of the present utility model, the flap is fixed by bolt or other dismountable connected modes
To the valve shaft.
According to preferred embodiment of the present utility model, the flap is fixed on valve shaft by the button-headed screw slotted.
According to preferred embodiment of the present utility model, positioned using circlip between the valve shaft and the axle sleeve, its
In sealed using elaxtic seal in the axle sleeve.
According to preferred embodiment of the present utility model, the inlet duct is provided with seal land, and flap is provided with rubber in side
Cushion, when the flap is closed, the rubber mount is in close contact with the seal land, so as to prevent medium back flow.
According to preferred embodiment of the present utility model, the flap is attached on its surface towards the side at medium inlet end
Flexible encapsulant.
According to preferred embodiment of the present utility model, the valve body, the inlet duct and outlet conduit, the flap
Rectangular cross-section.
The beneficial effects of the utility model are：Can be directly used for rectangular duct；After flap is opened, flow area keeps substantially
It is rectangle, flow resistance small to flow disturbance is low, saves conveying energy consumption；Internal flap is easy to dismounting, is easy to maintenance to change.
Brief description of the drawings
Embodiment of the present utility model and other aspects are discussed in detail below in conjunction with accompanying drawing, in accompanying drawing：
Fig. 1 shows the embodiment according to swing check valve of the present utility model.
Fig. 2 shows another embodiment according to swing check valve of the present utility model.
Fig. 3 shows the schematic diagram of the balance weight mechanism according to swing check valve of the present utility model.
Specific embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.Accompanying drawing and following description describe
Optional embodiment of the present utility model is instructing how those of ordinary skill in the art implement and reproduce the utility model.In order to
Teaching technical solutions of the utility model, have simplified or have eliminated some conventional aspects.It should be understood by one skilled in the art that
Modification or replacement from these implementation methods will fall in protection domain of the present utility model.Those of ordinary skill in the art should
The understanding following characteristics can combine to form multiple modifications of the present utility model in a variety of ways.Thus, the utility model is simultaneously
Following optional embodiments are not limited to, and are only limited by claim and their equivalent.
Referring now to Fig. 1 and 2, swing check valve of the present utility model mainly includes valve body 3, valve shaft 9, axle sleeve 10, valve
Valve 7, inlet flange 1, outlet(discharge) flange 6, counter weight device 14.Wherein valve body 3 constitutes the main body of swing check valve.In this practicality
In new one embodiment, valve body 3 can have square-section, and such as valve body 3 can have four sides.It is being preferable to carry out
In example, one in four sides of valve body 3 can be dismountable cover plate 4, the other three side secure bond together, example
Such as by way of welding, bonding, anchoring.In other embodiment of the present utility model, can have in four sides of valve body 3
Multiple is the form of dismountable cover plate.This dismountable cover plate of the present utility model is convenient for the maintenance of the trims such as flap
Change, so that maintenance work can be carried out more easily, and do not interfere with miscellaneous part.
At the two ends of valve body 3, can be connected with pipeline 2 and 5, connected mode for example can be using welding, bonding, anchoring etc.
Mode.In embodiment of the present utility model, pipeline 2 and 5 can be the rectangular tube with rectangular flange.For example, valve can be with
Pipeline is connected by flange, such as passes through inlet flange 1 and outlet(discharge) flange 6.
Flap 7 can be rectangular flap, and it is fixed on valve shaft 9.Flap 7 for example can be by bolt or other are dismountable
Connected mode is fixed to valve shaft 9.As shown in Fig. 2 in a preferred embodiment, the flap 7 of rectangle passes through the button-headed screw slotted
11 are fixed on valve shaft 9.One end insertion axle sleeve 10 of valve shaft 9, the other end stretches out.Axle sleeve 10 is fixed on valve body, for example, pass through
The modes such as welding, bonding, anchoring.Axle sleeve 10 can be one end closing, one end open, so as to accommodate valve in the space of opening
Axle 9.Valve shaft 9 can be rotated in axle sleeve 10, and circlip or snap ring 12 are installed on valve shaft 9, for example can be on valve shaft 9
Corresponding annular groove is set, and circlip or snap ring 12 are used to limit moving horizontally for valve shaft 9.And use elastic packing material
Material is sealed.Specifically, circlip 12 is to produce larger displacement in the horizontal direction for limiting valve shaft.In this practicality
In new preferred embodiment, contact of the circlip with valve interior wall can't be very tight, it will usually leaves certain gap,
Allowing axle can somewhat move in the horizontal direction, but will not produce larger displacement, while flap will not be hindered to rotate.
Flap 7 is fixed and with valve shaft 9 as valve shaft is rotatable.As shown in figure 1, flap 7 can be clockwise by valve shaft 9
Rotate so as to open, as shown by arrows in FIG., and rotate counterclockwise so as to close.Certainly, in alternate embodiments, also may be used
Being rotated counterclockwise so as to open, and rotate clockwise so as to close.Flap 7 can have rubber mount 8 in side, with
Play sealing and cushioning effect.At arrival end near inlet flange 1, valve body 3 is connected with inlet duct 2, and inlet duct 2 leads to
Crossing processing sets up has seal land 15（See that Fig. 2, Fig. 2 are that Fig. 1 have rotated 90 degree）, the seal land 15 is engaged with rubber mount 8,
When flap 7 is closed, rubber mount 8 is in close contact with seal land 15, so as to realize medium（Fluid）Sealing non-return.
In use, after turn on pump, in the presence of hydraulic thrust is gone out, the flap of rectangle is rotarily opened along valve shaft.Stop
After pump, flap ensures that check-valves is closed in time by deadweight and backflow hydraulic thrust.Specifically, in a state of use, medium（For example
Fluid）Enter inlet duct 2 from arrival end, be applied on flap 7, flap 7 is rotarily opened in the presence of medium, so that being situated between
Matter passes through, and is flowed to by outlet conduit and exported.After pump stops, flap 7 returns to its closing position in the presence of deadweight, in closure
Position, rubber mount 8 is in close contact with seal land 15, so that medium flows back without normal direction arrival end.
In addition, according to preferred embodiment of the present utility model, the external part of valve shaft 9 connection counter weight device 14, such as with refitting
Put 14 and valve the tip of the axis is fixed on by fastening bolt 16.The counter weight device 14 carries handle and weighted spherical ball, such as Fig. 2 right sides institute
Show.In preferred embodiment of the present utility model, axle and shaft room in the side of counterweight are provided with O-ring seal 13 so as to real
Now seal.The effect of O-ring seal 13 is to prevent the water in valve body from being leaked into outside valve body by the hole of valve shaft and shaft room,
In embodiment of the present utility model, only there is this leakage possibility in axle sleeve with heavy side（Opposite side axle sleeve is not opening）,
Therefore only O-ring seal need to be set near with heavy side.
In use, after turn on pump, in the presence of hydraulic thrust is gone out, the flap of rectangle is rotarily opened along valve shaft,
Counter weight device produces the torque of additional obstruction valve closing after unlatching, it is ensured that valve opening.After termination of pumping, flap by deadweight and
Backflow hydraulic thrust ensures that check-valves is closed in time.Specifically, in a state of use, medium enters inlet duct 2 from arrival end, makees
Use on flap 7, flap 7 is rotarily opened in the presence of medium, so that medium passes through, flowed to by outlet conduit and exported,
Counter weight device produces the torque of additional obstruction valve closing after unlatching.After pump stops, flap 7 is returned in the presence of deadweight
Its closing position, when flap is closed, weighted spherical ball acts on resultant moment certain on axle by handlebar, it is ensured that flap closure is tight
It is close, non-return is played a part of conscientiously（Effect becomes apparent from during valve vertical installation）.In closing position, rubber mount 8 and seal land
15 are in close contact, so that medium flows back without normal direction arrival end.
Reference picture 3, it illustrates the schematic diagram according to balance weight mechanism of the present utility model.The balance weight mechanism devises two
Handlebar and weighted spherical ball, the angle between the two handlebars can be adjusted according to use occasion.The purpose is to utilize
Two weighted spherical balls are applied to unlatching and the closure of the resultant moment auxiliary valve of valve shaft by respective handlebar.It is of course also possible to only pacify
A handle is filled, it is artificial controlled valve that so its effect is more.
One of effect of counter weight device is by applying extra torque, anti-backflow when flap is closed.Counterweight it is another
Individual effect is artificially to open check-valves：Check-valves will prevent fluid reflux under normal circumstances, it is sometimes necessary to open flap
Fluid is inversely released by check-valves（Such as empty）, easily flap can be opened by handle this when, it is existing
The check-valves for having technology does not possess this kind of function then.
Valve of the present utility model can be used for riser can be used for horizontal pipe.Flap of the present utility model is opened
Flow section is close to square afterwards, and, resistance small to flow disturbance is small.
The utility model has been described in detail with reference to particular embodiments above, it is clear that do not departing from appended claims
Defined in the utility model scope in the case of, can be modified and change.Although more specifically, of the present utility model
Some aspect be identified herein as it is preferred or favourable, but the utility model should not necessarily be limited by it is of the present utility model
These preferred embodiments.
Claims (9)
1. a kind of swing check valve, it is characterised in that it includes：
Valve body, the valve body is connected with inlet duct and outlet conduit；And
Flap, the flap is fixed on valve shaft, and one end insertion axle sleeve of the valve shaft, the other end is stretched out, and the axle sleeve is fixed
Onto the valve body,
Wherein, the valve body, the inlet duct and outlet conduit, the rectangular cross-section of the flap.
2. swing check valve according to claim 1, it is characterised in that the valve shaft connects counter weight device, shown to match somebody with somebody
Refitting is put including handle and weighted spherical ball, and wherein counter weight device is fixed on valve shaft by fastening bolt.
3. swing check valve according to claim 2, it is characterised in that the body of the counter weight device is in by two
Determine angle handle composition.
4. swing check valve according to claim 2, it is characterised in that the counter weight device by bolt or other can
Dismounting connected mode is fixed to the external part of valve shaft.
5. swing check valve according to claim 1, it is characterised in that the flap is by bolt or other are detachable
Connected mode be fixed to the valve shaft.
6. swing check valve according to claim 5, it is characterised in that the flap is by the button-headed screw slotted
It is fixed on valve shaft.
7. swing check valve according to claim 1, it is characterised in that bullet is used between the valve shaft and the axle sleeve
Property back-up ring positioning, wherein being sealed using elaxtic seal in the axle sleeve.
8. swing check valve according to claim 1, it is characterised in that the inlet duct is provided with seal land, flap
Rubber mount is provided with side, when the flap is closed, the rubber mount is in close contact with the seal land, so as to prevent
Medium back flow.
9. swing check valve according to claim 8, it is characterised in that the flap is at it towards medium inlet end
Has elaxtic seal on the surface of side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620878353.6U CN206234406U (en) | 2016-08-15 | 2016-08-15 | Swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620878353.6U CN206234406U (en) | 2016-08-15 | 2016-08-15 | Swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206234406U true CN206234406U (en) | 2017-06-09 |
Family
ID=58986682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620878353.6U Active CN206234406U (en) | 2016-08-15 | 2016-08-15 | Swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206234406U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953690A (en) * | 2018-06-13 | 2018-12-07 | 江苏圣泰阀门有限公司 | Nuclear power check-valves |
-
2016
- 2016-08-15 CN CN201620878353.6U patent/CN206234406U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953690A (en) * | 2018-06-13 | 2018-12-07 | 江苏圣泰阀门有限公司 | Nuclear power check-valves |
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