CN208281575U - A kind of dual spring Vertical Lift Check Valves - Google Patents
A kind of dual spring Vertical Lift Check Valves Download PDFInfo
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- CN208281575U CN208281575U CN201820828591.5U CN201820828591U CN208281575U CN 208281575 U CN208281575 U CN 208281575U CN 201820828591 U CN201820828591 U CN 201820828591U CN 208281575 U CN208281575 U CN 208281575U
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- feed liquor
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Abstract
The utility model discloses a kind of dual spring Vertical Lift Check Valves, including valve body, the valve body bottom end is equipped with inlet, feed liquor neck is equipped at the top of the inlet, the feed liquor neck inner wall is equipped with sealing ring, valve chamber is equipped at the top of the feed liquor neck, the valve chamber inner wall is equipped with connecting rod, the connecting rod is equipped with casing, described sleeve pipe bottom end is equipped with lower spring, valve rod is equipped in described sleeve pipe, the valve stem tip is equipped with upper spring and bottom end is equipped with flap, the upper spring top is equipped with link block, and the valve rod two sides are equipped with adjustable plate.The utility model can be adjusted when gap of the medium between flap and sealing ring flows into valve chamber by the way that adjustable plate is arranged on valve chamber inner wall, so that the flow velocity of medium is minimized, further reduced the influence of water hammer, extend service life.
Description
Technical field
The utility model relates to valve field, in particular to a kind of dual spring Vertical Lift Check Valves.
Background technique
Vertical Lift Check Valves refer to be flowed and automatic open and close flap by medium itself, for preventing the valve of medium refluence,
Also known as non-return valve, check valve, reflux valve and counterbalance valve.Check-valves belongs to a kind of automatic valve, and main function is to prevent medium
It flows backwards, prevent pump and drive motor reversion and vessel media from releasing.Check-valves can also be used in may to pressure therein
The auxiliary system for being raised above system pressure is provided on the pipeline of supply.Check-valves can be divided mainly into swing check valve (according to center of gravity
Rotation) and lift check valve (being moved along axis).The effect of such valve is only medium to be allowed to flow to a direction
It is dynamic, and prevent opposite direction flowing.Usual this valve is automatic work, the Fluid pressure effect flowed in one direction
Under, flap is opened；When fluid opposite direction flowing, valve seat is acted on by the flap that is overlapped certainly of Fluid pressure and flap, to cut off
Flowing.
But traditional check-valves is at work, not clever enough when flap is opened and closed by the pressure of media flow
It is quick, and due to structure excessively it is single cause fluid velocity to become larger suddenly when water hammer seriously affect service life.
Therefore, it is necessary to solve the above problems that a kind of dual spring Vertical Lift Check Valves are invented.
Utility model content
The purpose of this utility model is to provide a kind of dual spring Vertical Lift Check Valves, are adjusted by being arranged on valve chamber inner wall
Plate can be adjusted when gap of the medium between flap and sealing ring flows into valve chamber, the eddies of water is generated in valve chamber, so that
The flow velocity of medium is minimized, to solve the problems, such as that conventional check valves cause service life to reduce vulnerable to water hammer influence.
To achieve the above object, the utility model provides the following technical solutions: a kind of dual spring Vertical Lift Check Valves, including valve
Body, the valve body bottom end are equipped with inlet, feed liquor neck are equipped at the top of the inlet, and the feed liquor neck inner wall is equipped with sealing ring,
Valve chamber is equipped at the top of the feed liquor neck, the valve chamber inner wall is equipped with connecting rod, and the connecting rod is equipped with casing, described sleeve pipe bottom
End is equipped with lower spring, and valve rod is equipped in described sleeve pipe, and the valve stem tip is equipped with upper spring and bottom end is equipped with flap, it is described on
Spring top is equipped with link block, and the valve rod two sides are equipped with adjustable plate, and the connection boom end is equipped with isolation board, the isolation
Plate side is equipped with liquid neck, and the liquid neck end out is equipped with outlet tube.
Preferably, the valve chamber is set to body cavity, and the inlet, feed liquor neck and valve chamber integrated setting are described
Inlet and the hour-glass in shape setting of feed liquor neck.
Preferably, the sealing ring is fixedly connected with feed liquor neck inner wall, and the flap outer wall matches with sealing ring inner wall,
The body base is equipped with mounting flange.
Preferably, described sleeve pipe is embedded in connecting rod, and described connecting rod one end is fixedly connected and separately with valve chamber inner wall
One end is fixedly connected with isolation board side wall, is fixedly connected at the top of the link block with valve chamber inner cavity top, and the valve rod passes through upper
Spring is flexibly connected with link block.
Preferably, the valve rod is flexibly connected with casing, and the lower spring pocket is set to the bottom end of valve rod, the lower spring bottom
It is fixedly connected at the top of end and flap, the flap is flexibly connected by valve rod and lower spring with casing.
Preferably, it is described go out liquid neck and valve chamber integrated setting, the isolation board top be fixedly connected with valve chamber top with
And two sidewalls are fixedly connected with valve chamber inner wall, the adjustable plate is set on valve chamber inner wall and quantity is set as multiple, the tune
Plate is saved to be symmetrical arranged by valve rod.
The technical effect and advantage of the utility model:
1, by being equipped with upper spring and lower spring, when flap is moved up by the pressure of media flow, using upper spring under
Spring retraction, valve rod carry out activity in casing, reduce water hammer generation simultaneously when single spring is damaged according to
It is old operable, improve practicability；
2, by the way that adjustable plate is arranged on valve chamber inner wall, when gap of the medium between flap and sealing ring flows into valve chamber
When can be adjusted so that the flow velocity of medium is minimized, further reduced the influence of water hammer, extend using the longevity
Life；
3, by the way that by inlet and the hour-glass in shape setting of feed liquor neck, the medium velocity flowed into is more uniform.
Detailed description of the invention
Structural schematic diagram when Fig. 1 is the circulation of the utility model；
Structural schematic diagram when Fig. 2 is the cutout of the utility model；
Fig. 3 is the schematic diagram of the section structure at A-A in Fig. 1 of the utility model；
Fig. 4 is the schematic diagram of the section structure at B-B in Fig. 1 of the utility model；
In figure: 1 valve body, 2 inlets, 3 feed liquor necks, 4 sealing rings, 5 valve chambers, 6 connecting rods, 7 casings, 8 lower springs, 9 valve rods,
10 upper springs, 11 flaps, 12 link blocks, 13 adjustable plates, 14 isolation boards, 15 go out liquid neck, 16 outlet tubes, 17 mounting flanges.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of dual spring Vertical Lift Check Valves as shown in Figs 1-4, including valve body 1, the valve body 1
Bottom end is equipped with inlet 2, is equipped with feed liquor neck 3 at the top of the inlet 2, and 3 inner wall of feed liquor neck is equipped with sealing ring 4, it is described into
Valve chamber 5 is equipped at the top of liquid neck 3,5 inner wall of valve chamber is equipped with connecting rod 6, and the connecting rod 6 is equipped with casing 7, described sleeve pipe 7
Bottom end is equipped with lower spring 8, valve rod 9 is equipped in described sleeve pipe 7,9 top of valve rod is equipped with upper spring 10 and bottom end is equipped with valve
Valve 11,10 top of upper spring are equipped with link block 12, and 9 two sides of valve rod are equipped with adjustable plate 13,6 end of connecting rod
Equipped with isolation board 14,14 side of isolation board is equipped with liquid neck 15, and 15 end of liquid neck out is equipped with outlet tube 16.
Further, in the above-mentioned technical solutions, the valve chamber 5 is set to 1 inner cavity of valve body, the inlet 2, feed liquor neck
3 and 5 integrated setting of valve chamber, the inlet 2 and the hour-glass in shape setting of feed liquor neck 3, by being in by inlet 2 and feed liquor neck 3
Hourglass-shaped setting, the medium velocity flowed into are more uniform.
Further, in the above-mentioned technical solutions, the sealing ring 4 is fixedly connected with 3 inner wall of feed liquor neck, the flap 11
Outer wall matches with 4 inner wall of sealing ring, and 1 bottom of valve body is equipped with mounting flange 17, by valve body 1 and is managed by mounting flange 17
Road system is attached.
Further, in the above-mentioned technical solutions, described sleeve pipe 7 is embedded in connecting rod 6, described 6 one end of connecting rod with
5 inner wall of valve chamber is fixedly connected and the other end is fixedly connected with 14 side wall of isolation board, 12 top of link block and 5 inner cavity of valve chamber
Top is fixedly connected, and the valve rod 9 is flexibly connected by upper spring 10 with link block 12, and valve rod 9 receives what 11 one end of flap generated
Pressure is moved in casing 7.
Further, in the above-mentioned technical solutions, the valve rod 9 is flexibly connected with casing 7, and the lower spring 8 is sheathed on
The bottom end of valve rod 9 is fixedly connected at the top of lower 8 bottom end of spring and flap 11, and the flap 11 passes through valve rod 9 and lower spring 8
It is flexibly connected with casing 7, when pressure when flap 11 is by flow of media squeezes dead spring 8, so that valve rod 9 is moved up.
Further, in the above-mentioned technical solutions, liquid neck 15 and 5 integrated setting of valve chamber out, the isolation board 14
It is fixedly connected at the top of top and valve chamber 5 and two sidewalls is fixedly connected with 5 inner wall of valve chamber, the adjustable plate 13 is set to valve chamber 5
On inner wall and quantity is set as multiple, and the adjustable plate 13 is symmetrical arranged by valve rod 9, when medium is from flap 11 and sealing ring 4
Between gap when flowing into valve chamber 5, directly act on adjustable plate 13, so that the flow direction of medium is adjusted, generate the eddies of water,
So that the flow velocity of medium is minimized, it further reduced the influence of water hammer, extend service life.
This practical working principle:
Referring to Figure of description 1-3, when work, valve body 1 is attached with pipe-line system by mounting flange 17, works as Jie
When matter enters feed liquor neck 3 from inlet 2, the pressure that when media flow generates pushes flap 11 to move up, lower spring 8 and upper spring 10
Bounce back simultaneously, the activity in casing 7 of valve rod 9 moves up so that 11 outer wall of flap is separated with the sealing ring 4 in feed liquor neck 3, medium from
Feed liquor neck 3 enters in valve chamber 5, and the medium velocity that the inlet 2 and feed liquor neck 3 of hour-glass in shape setting flow into is more equal
It is even, the influence of water hammer is reduced, then medium goes out outflow after liquid neck 15 enters in outlet tube 16 from 14 side of isolation board,
Using the design of dual spring, so that when mobile when by medium squeeze of flap 11 relatively at the uniform velocity, to make the flow velocity of medium not
Can be in interior speed-raising in a flash, while can still work when single spring damages, when the medium in pipe-line system
When flowing stops, flap 11 is moved down by upper spring 10 and the effect of lower spring 8 is butted on its outer wall on sealing ring 4, and medium is avoided to return
Stream；
Referring to Figure of description 4, when gap of the medium between flap 11 and sealing ring 4 flows into valve chamber 5, directly make
For adjustable plate 13, so that the flow direction of medium is adjusted, the eddies of water is generated, so that the flow velocity of medium is minimized, further
The influence for reducing water hammer, extends service life.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of dual spring Vertical Lift Check Valves, including valve body (1), it is characterised in that: valve body (1) bottom end is equipped with inlet
(2), feed liquor neck (3) are equipped at the top of the inlet (2), feed liquor neck (3) inner wall is equipped with sealing ring (4), the feed liquor neck
(3) top is equipped with valve chamber (5), and valve chamber (5) inner wall is equipped with connecting rod (6), and the connecting rod (6) is equipped with casing (7), institute
Casing (7) bottom end is stated equipped with lower spring (8), described sleeve pipe (7) is interior to be equipped with valve rod (9), and valve rod (9) top is equipped with upper spring
(10) and bottom end is equipped with flap (11), and upper spring (10) top is equipped with link block (12), and valve rod (9) two sides are all provided with
Have adjustable plate (13), connecting rod (6) end is equipped with isolation board (14), and isolation board (14) side is equipped with liquid neck
(15), liquid neck (15) end out is equipped with outlet tube (16).
2. a kind of dual spring Vertical Lift Check Valves according to claim 1, it is characterised in that: the valve chamber (5) is set to valve
Body (1) inner cavity, the inlet (2), feed liquor neck (3) and valve chamber (5) integrated setting, the inlet (2) and feed liquor neck (3)
Hour-glass in shape setting.
3. a kind of dual spring Vertical Lift Check Valves according to claim 1, it is characterised in that: the sealing ring (4) and feed liquor
Neck (3) inner wall is fixedly connected, and flap (11) outer wall matches with sealing ring (4) inner wall, and valve body (1) bottom is equipped with peace
It fills flange (17).
4. a kind of dual spring Vertical Lift Check Valves according to claim 1, it is characterised in that: described sleeve pipe (7) company of being embedded at
On extension bar (6), described connecting rod (6) one end be fixedly connected with valve chamber (5) inner wall and the other end and isolation board (14) side wall it is solid
Fixed connection, link block (12) top are fixedly connected with valve chamber (5) inner cavity top, and the valve rod (9) passes through upper spring (10)
It is flexibly connected with link block (12).
5. a kind of dual spring Vertical Lift Check Valves according to claim 1, it is characterised in that: the valve rod (9) and casing (7)
It is flexibly connected, the lower spring (8) is sheathed on the bottom end of valve rod (9), fixes at the top of lower spring (8) bottom end and flap (11)
Connection, the flap (11) are flexibly connected by valve rod (9) and lower spring (8) with casing (7).
6. a kind of dual spring Vertical Lift Check Valves according to claim 1, it is characterised in that: liquid neck (15) and the valve chamber out
(5) integrated setting, is fixedly connected at the top of isolation board (14) top and valve chamber (5) and two sidewalls and valve chamber (5) inner wall
It is fixedly connected, the adjustable plate (13) is set on valve chamber (5) inner wall and quantity is set as multiple, and the adjustable plate (13) passes through
Valve rod (9) is symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820828591.5U CN208281575U (en) | 2018-05-31 | 2018-05-31 | A kind of dual spring Vertical Lift Check Valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820828591.5U CN208281575U (en) | 2018-05-31 | 2018-05-31 | A kind of dual spring Vertical Lift Check Valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208281575U true CN208281575U (en) | 2018-12-25 |
Family
ID=64705562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820828591.5U Active CN208281575U (en) | 2018-05-31 | 2018-05-31 | A kind of dual spring Vertical Lift Check Valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208281575U (en) |
-
2018
- 2018-05-31 CN CN201820828591.5U patent/CN208281575U/en active Active
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