CN206054827U - Lifting/lowering type check-valves - Google Patents
Lifting/lowering type check-valves Download PDFInfo
- Publication number
- CN206054827U CN206054827U CN201621022951.XU CN201621022951U CN206054827U CN 206054827 U CN206054827 U CN 206054827U CN 201621022951 U CN201621022951 U CN 201621022951U CN 206054827 U CN206054827 U CN 206054827U
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- CN
- China
- Prior art keywords
- valve
- magnet
- rod
- flap
- seal
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of lifting/lowering type check-valves.The technical solution of the utility model is：Two shapes are vertically offered on valve stem sleeve and size is the same from elongated slot, two bodies of rod being engaged with elongated slot are provided with flap, the end of the close elongated slot of the body of rod is provided with seal, the first Magnet is coated with seal, the bottom of two elongated slots is provided with the second Magnet attracted each other with the first Magnet, spring is provided with valve stem sleeve, when seal is contacted with the second Magnet, the pressure of the spring that valve rod is subject to is more than the captivation between the first Magnet and the second Magnet.In the scheme that this utility model is provided, valve rod will not be rotated by water impact with flap, improve the stability of valve, due to the effect of the first Magnet and the second Magnet mutual attractive force, valve rod and flap more quickly can rise, the pressure of the spring that valve rod is subject to is more than the captivation between the first Magnet and the second Magnet, the falling speed of valve rod is accelerated, the response speed of valve is improved.
Description
Technical field
This utility model is related to valve technology field, more particularly to a kind of lift check valve.
Background technology
Check-valves are referred to and are 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 belong to a kind of automatic valve, and its Main Function is to prevent medium from falling
Stream, prevent pump and drive motor reversion, and vessel media from releasing.Lift check valve refers to that flap is vertical along valve body
The check-valves that centrage slides, lift check valve is can be only installed on horizontal pipe, in high-pressure small-bore check-valves upper flap
Ball can be adopted.The valve body shapes of lift check valve are as stop valve（Can be general with stop valve）, therefore its fluid resistance
Force coefficient is larger.Its structure is similar to stop valve, and valve body and flap are identical with stop valve.Flap top and bonnet lower are machined with
Fairlead letter, flap are oriented to letter and can be freely lifted in the guiding letter of valve small cup, and when medium following current, flap is opened by medium thrust,
When medium arrheas, flap is leaned on from hanging down and is dropped on valve seat, plays prevention medium counter flow effect.
The problem one that the lift check valve of prior art is present is check-valves delay of response, i.e. flap lifting is not fast enough
Speed, and flap is susceptible to fork clip, another is exactly that the flow media in valve body is in an unsure state, and can cause flap
The situation for double swerve occurring in lifting process and rotating occurs, and so will result in the Fast Wearing of valve rod and flap,
Reduce the service life of lift check valve.
Utility model content
In view of the shortcomings of the prior art, main purpose of the present utility model be provide one kind be prevented from valve rod with
Flap rotation and the lifting/lowering type check-valves of response quickly.
For achieving the above object, this utility model provides following technical scheme：A kind of lifting/lowering type check-valves, including
Valve body and valve gap, are connected by screw bolt and nut between the valve body and valve gap, be provided with intake channel and go out in the valve body
Mouth passage, the valve body are provided with valve seat in the side of intake channel, are provided with and are connected with the intake channel in the valve seat
Passage, the flap cooperated with the valve seat is provided with the valve body, the upper end of the flap is connected with valve rod, described
Valve stem sleeve is provided with the inside of valve gap, chute on the valve stem sleeve, is provided with, the upper end of the valve rod is slided and arranged in chute, described
Two shapes are vertically offered on valve stem sleeve and size is the same from elongated slot, two are provided with the flap with the elongated slot
The body of rod being engaged, the end of the close elongated slot of the body of rod are provided with seal, and the first Magnet is coated with the seal,
The bottom of described two elongated slots is provided with the second Magnet attracted each other with first Magnet, is provided with bullet in the valve stem sleeve
Spring, when seal is contacted with the second Magnet, the pressure of the spring that valve rod is subject to is more than between the first Magnet and the second Magnet
Captivation.
Preferably, described two elongated slots are symmetrical arranged relative to the centrage of valve stem sleeve.
Preferably, described two bodies of rod are arranged with valve-stem integrated molding.
Preferably, the valve rod is provided with sealing gasket with the junction of valve stem sleeve.
This utility model has the advantage that relative to prior art elongated slot can cause valve rod and valve with the cooperation of the body of rod
Lobe will not be rotated by water impact, reduce friction, improve the stability of valve and extended service life, wherein growing
Groove is provided with two with the body of rod, in order that keeping the stress balance of valve rod and more can put down during raising and lowering
Surely, even across after prolonged use also will not run-off the straight situation.First Magnet is enveloped by seal, can be caused
Will not be corroded by fluid in elongated slot, the first Magnet one end opposite polarity relative with the second Magnet produces suction from each other
Gravitation, so in Open valve, due to the effect of the first Magnet and the second Magnet mutual attractive force, valve rod and flap can be more
Plus quickly rise, toggle speed is accelerated.In addition when seal is contacted with the second Magnet, the pressure of the spring that valve rod is subject to is big
Captivation between the first Magnet and the second Magnet, the purpose for so arranging is for the lower terminal-velocity for accelerating valve rod and flap
Degree, improves the response speed of valve.Because when seal is contacted with the second Magnet, now valve rod and flap will not rise again,
So flap may only be moved downward, but after fluid stream, the spring pressure that valve rod is subject to is more than the first Magnet and second
Captivation between Magnet, so valve rod is generally in the situation of whereabouts is accelerated, valve rod rises and the speed of whereabouts all becomes
Hurry up, response speed is improved.
Description of the drawings
Fig. 1 is a kind of sectional view of lifting/lowering type check-valves of the present utility model；
Fig. 2 is A portions enlarged diagram in Fig. 1.
In figure：1st, valve body；2nd, valve gap；3rd, intake channel；4th, exit passageway；5th, flap；6th, valve seat；7th, valve rod；8th, valve rod
Set；9th, chute；10th, elongated slot；11st, the body of rod；12nd, seal；13rd, the first Magnet；14th, the second Magnet；15th, spring；16th, seal
Pad.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of lifting/lowering type check-valves, including valve body 1 and valve gap 2, between the valve body 1 and valve gap 2
Connected by screw bolt and nut, in the valve body 1, be provided with intake channel 3 and exit passageway 4, the valve body 1 is in intake channel 3
Side be provided with valve seat 6, passage connect with the intake channel 3 is provided with the valve seat 6, setting in the valve body 1
The upper end for having the flap 5 cooperated with the valve seat 6, the flap 5 is connected with valve rod 7, is provided with valve on the inside of the valve gap 2
Rod set 8, is provided with chute 9 on the valve stem sleeve 8, the upper end of the valve rod 7 is slided and arranged in chute 9, erects on the valve stem sleeve 8
Head straight for being provided with two shapes and size is the same from elongated slot 10, two are provided with the flap 5 and are matched with the elongated slot 10
The body of rod 11 of conjunction, the end of the close elongated slot 10 of the body of rod 11 are provided with seal 12, and is coated with the seal 12
One Magnet 13, the bottom of described two elongated slots 10 are provided with the second Magnet 14 attracted each other with first Magnet 13, described
Spring 15 is provided with valve stem sleeve 8, when seal 12 is contacted with the second Magnet 14, the pressure of the spring 15 that valve rod 7 is subject to is big
Captivation between the first Magnet 13 and the second Magnet 14.
The operation principle of lifting/lowering type check-valves of the present utility model is that elongated slot 10 can be caused with the cooperation of the body of rod 11
Valve rod 7 will not be rotated by water impact with flap 5, reduce friction, improve the stability of valve and extended use
Life-span, wherein elongated slot 10 are provided with two with the body of rod 11, in order that keeping the stress balance of valve rod 7 and in raising and lowering
During can be more steady, even across after prolonged use also will not run-off the straight situation.Seal 12 is by the first magnetic
Ferrum 13 is enveloped, and will not be corroded by fluid in can causing elongated slot 10, the first Magnet 13 it is relative with the second Magnet 14 one
End opposite polarity, produce captivation from each other, so in Open valve, due to the first Magnet 13 and the second Magnet 14 it is mutual
The effect of captivation, valve rod 7 and flap 5 more quickly can rise, and starting time is accelerated.Work as seal 12 and second in addition
When Magnet 14 is contacted, the pressure of the spring 15 that valve rod 7 is subject to is more than the captivation between the first Magnet 13 and the second Magnet 14, this
The purpose that sample is arranged is that the response speed of valve is improved for the falling speed for accelerating valve rod 7 and flap 5.Because working as seal
12 when contacting with the second Magnet 14, and now valve rod 7 and flap 5 will not rise again, and such flap 5 may only be moved downward,
But after fluid stream, 15 pressure of spring that valve rod 7 is subject to is more than the captivation between the first Magnet 13 and the second Magnet 14, so
Generally in the situation of whereabouts is accelerated, valve rod 7 rises valve rod 7 and the speed that falls all accelerates, and response speed is improved.
Preferably, described two elongated slots 10 are symmetrical arranged relative to the centrage of valve stem sleeve 8.The purpose for so arranging is to protect
Hold the stress balance of valve rod 7 and during raising and lowering because the support for having obtained the body of rod 11 more smoothly can rise
Drop, which enhances the service life of whole valve.
Preferably, described two bodies of rod 11 are integrally formed setting with valve rod 7.Manufacturing process can be not only saved so, and
And the bonding strength between the body of rod 11 and valve rod 7 is also obtained guarantee.
Preferably, the valve rod 7 is provided with sealing gasket 16 with the junction of valve stem sleeve 8.So purpose of design is to keep away
Exempt from fluid in valve stem sleeve 8, preventing the spring 15 in valve stem sleeve 8 from being corroded by fluid, it is ensured that the performance of spring 15 so that
The service life of spring 15 extends.
The above is only preferred implementation 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 this utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, some improvement under the premise of without departing from this utility model principle and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (4)
1. a kind of lifting/lowering type check-valves, including valve body and valve gap, are connected by screw bolt and nut between the valve body and valve gap
Connect, in the valve body, be provided with intake channel and exit passageway, the valve body is provided with valve seat in the side of intake channel, described
The passage connected with the intake channel is provided with valve seat, the valve cooperated with the valve seat in the valve body, is provided with
Lobe, the upper end of the flap are connected with valve rod, be provided with valve stem sleeve, be provided with chute on the valve stem sleeve on the inside of the valve gap,
Slide and arrange in chute in the upper end of the valve rod, it is characterised in that：Two shapes and big are offered on the valve stem sleeve vertically
It is little to be the same from elongated slot, two bodies of rod being engaged with the elongated slot, the close elongated slot of the body of rod are provided with the flap
End be provided with seal, be coated with the first Magnet in the seal, the bottom of described two elongated slots be provided with it is described
The second Magnet that first Magnet attracts each other, is provided with spring in the valve stem sleeve, when seal is contacted with the second Magnet, valve
The pressure of the spring that bar is subject to is more than the captivation between the first Magnet and the second Magnet.
2. lifting/lowering type check-valves according to claim 1, it is characterised in that：Described two elongated slots are relative to valve stem sleeve
Centrage be symmetrical arranged.
3. lifting/lowering type check-valves according to claim 1, it is characterised in that：Described two bodies of rod and valve-stem integrated into
Type is arranged.
4. lifting/lowering type check-valves according to claim 1, it is characterised in that：The junction of the valve rod and valve stem sleeve
It is provided with sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621022951.XU CN206054827U (en) | 2016-08-31 | 2016-08-31 | Lifting/lowering type check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621022951.XU CN206054827U (en) | 2016-08-31 | 2016-08-31 | Lifting/lowering type check-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206054827U true CN206054827U (en) | 2017-03-29 |
Family
ID=58374178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621022951.XU Withdrawn - After Issue CN206054827U (en) | 2016-08-31 | 2016-08-31 | Lifting/lowering type check-valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206054827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195357A (en) * | 2016-08-31 | 2016-12-07 | 苏州科迪流体控制设备有限公司 | Lifting/lowering type check-valves |
-
2016
- 2016-08-31 CN CN201621022951.XU patent/CN206054827U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195357A (en) * | 2016-08-31 | 2016-12-07 | 苏州科迪流体控制设备有限公司 | Lifting/lowering type check-valves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170329 Effective date of abandoning: 20180821 |
|
| AV01 | Patent right actively abandoned |