CN106195357B - Lifting/lowering type check-valves - Google Patents
Lifting/lowering type check-valves Download PDFInfo
- Publication number
- CN106195357B CN106195357B CN201610790267.4A CN201610790267A CN106195357B CN 106195357 B CN106195357 B CN 106195357B CN 201610790267 A CN201610790267 A CN 201610790267A CN 106195357 B CN106195357 B CN 106195357B
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- CN
- China
- Prior art keywords
- valve
- magnet
- rod
- flap
- seal
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- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/048—Ball features
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of lift check valves.The technical scheme is that：Shape and all identical elongated slot of size there are two being opened up vertically on valve stem sleeve, on flap setting there are two with the matched body of rod of elongated slot, the end set of the close elongated slot of the body of rod has seal, the first magnet is coated in seal, the bottom of two elongated slots is provided with the second magnet to attract each other with the first magnet, spring is provided in valve stem sleeve, when seal and the second magnet contact, the pressure for the spring that valve rod is subject to is more than the attraction between the first magnet and the second magnet.Valve rod will not be rotated with flap by water impact in scheme provided by the invention, improve the stability of valve, due to the effect of the first magnet and the second magnet mutual attractive force, valve rod and flap can more quickly rise, the pressure for the spring that valve rod is subject to is more than the attraction between the first magnet and the second magnet, the falling speed for accelerating valve rod improves the response speed of valve.
Description
Technical field
The present invention relates to valve technology field, more particularly to a kind of lift check valve.
Background technology
Check-valves refers to being flowed and automatic open and close flap by medium itself, for the valve for preventing medium from flowing backwards, 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 from falling
It flows, 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 of center line sliding, lift check valve can be only installed on horizontal pipe, in high-pressure small-bore check-valves upper flap
Ball can be used.The valve body shapes of lift check valve are as shut-off valve（It can be general with shut-off valve）, therefore its fluid resistance
Force coefficient is larger.Its structure is similar to shut-off valve, and valve body and flap are identical as shut-off valve.Flap top and bonnet lower are machined with
Guide sleeve letter, flap are oriented to letter and can be freely lifted in the guiding letter of valve small cup, and when medium fair current, flap is opened by medium thrust,
When medium arrheas, flap, which is leaned on, to be dropped to from hanging down on valve seat, is served and is prevented medium counter flow.
The lift check valve of the prior art there are the problem of one be check-valves delay of response, i.e. flap lifting is not fast enough
Speed and flap are easy to happen fork clip, another is exactly that flow media in valve body is in an unsure state, and can cause flap
There is a situation where double swerves and rotation to occur in lifting process, will result in the Fast Wearing of valve rod and flap in this way,
Reduce the service life of lift check valve.
Invention content
In view of the deficienciess of the prior art, the main purpose of the present invention is to provide one kind capable of preventing valve rod and flap
The lifting/lowering type check-valves of rotation and response quickly.
To achieve the above object, the present invention provides following technical solutions：A kind of lifting/lowering type check-valves, including valve body
And valve deck, it is connected by screw bolt and nut between the valve body and valve deck, intake channel is provided in the valve body and outlet is logical
Road, the valve body are provided with valve seat in the side of intake channel, be provided in the valve seat be connected to the intake channel it is logical
Road is provided in the valve body and is connected with valve rod, the valve deck with the mutually matched flap of the valve seat, the upper end of the flap
Inside is provided with valve stem sleeve, and sliding slot is provided on the valve stem sleeve, and the upper end sliding of the valve rod is arranged in sliding slot, the valve rod
Put on it is vertical open up there are two shape and all identical elongated slot of size, there are two match with the elongated slot for setting on the flap
The end set of the body of rod of conjunction, the close elongated slot of the body of rod has seal, and the first magnet is coated in the seal, described
The bottom of two elongated slots is provided with the second magnet to attract each other with first magnet, and spring is provided in the valve stem sleeve,
When seal and the second magnet contact, the pressure for the spring that valve rod is subject to is more than the attraction between the first magnet and the second magnet
Power.
Preferably, center line symmetrical setting of described two elongated slots relative to valve stem sleeve.
Preferably, described two bodies of rod are arranged with valve-stem integrated molding.
Preferably, the junction of the valve rod and valve stem sleeve is provided with gasket.
The present invention has the following advantages compared with the prior art, and the cooperation of elongated slot and the body of rod can make valve rod with flap not
Can be rotated by water impact, reduce friction, improve the stability of valve and extend service life, wherein elongated slot and
There are two the body of rod is respectively provided with, in order that keeping the stress balance of valve rod and can be more steady during raising and lowering, i.e.,
Make after prolonged use will not run-off the straight the case where.Seal envelopes the first magnet, can make elongated slot
In will not be corroded by fluid, the first magnet one end polarity opposite with the second magnet on the contrary, generate attraction from each other,
In this way in Open valve, due to the effect of the first magnet and the second magnet mutual attractive force, valve rod and flap can more be accelerated
The rising of speed starts speed and accelerates.In addition when seal and the second magnet contact, the pressure of the spring that valve rod is subject to is more than the
Attraction between one magnet and the second magnet, the purpose being arranged in this way are to accelerate the falling speed of valve rod and flap, carry
The response speed of high valve.Because when seal and the second magnet contact, valve rod and flap will not rise again at this time, such valve
Valve may only move downward, but after fluid stream, the spring pressure that valve rod is subject to be more than the first magnet and the second magnet it
Between attraction, so valve rod generally be in accelerate fall the case where, valve rod rise and fall speed all become faster, respond
Speed is improved.
Description of the drawings
Fig. 1 is a kind of sectional view of lifting/lowering type check-valves of the present invention；
Fig. 2 is the portions A enlarged diagram in Fig. 1.
In figure：1, valve body；2, valve deck；3, intake channel；4, exit passageway；5, flap；6, valve seat；7, valve rod；8, valve rod
Set；9, sliding slot；10, elongated slot；11, the body of rod；12, seal；13, the first magnet；14, the second magnet；15, spring；16, it seals
Pad.
Specific implementation mode
The invention will be further described 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 deck 2, between the valve body 1 and valve deck 2
It is connected by screw bolt and nut, intake channel 3 and exit passageway 4 is provided in the valve body 1, the valve body 1 is in intake channel 3
Side be provided with valve seat 6, be provided with the channel being connected to the intake channel 3 in the valve seat 6, setting in the valve body 1
Have and be connected with valve rod 7 with 6 mutually matched flap 5 of the valve seat, the upper end of the flap 5,2 inside of the valve deck is provided with valve
Rod set 8, is provided with sliding slot 9 on the valve stem sleeve 8, in the upper end sliding setting sliding slot 9 of the valve rod 7, is erected on the valve stem sleeve 8
It heads straight for setting there are two shape and all identical elongated slot 10 of size, there are two match with the elongated slot 10 for setting on the flap 5
The end set of the body of rod 11 of conjunction, the close elongated slot 10 of the body of rod 11 has seal 12, and is coated in the seal 12
One magnet 13, the bottom of described two elongated slots 10 is provided with the second magnet 14 to attract each other with first magnet 13, described
Spring 15 is provided in valve stem sleeve 8, when seal 12 and the second magnet 14 contact, the pressure for the spring 15 that valve rod 7 is subject to is big
Attraction between the first magnet 13 and the second magnet 14.
The operation principle of the lifting/lowering type check-valves of the present invention is that elongated slot 10 and the cooperation of the body of rod 11 can make valve rod
7 will not be rotated with flap 5 by water impact, reduce friction, improve the stability of valve and extend service life,
There are two wherein elongated slot 10 and the body of rod 11 are respectively provided with, in order that keeping the stress balance of valve rod 7 and in raising and lowering process
In can be more steady, even across after prolonged use will not run-off the straight the case where.Seal 12 is by the first magnet 13
It envelopes, can be corroded by fluid in elongated slot 10, the first magnet 13 one end pole opposite with the second magnet 14
Property on the contrary, generate attraction, in this way in Open valve, since the first magnet 13 and the second magnet 14 attract each other from each other
The effect of power, valve rod 7 and flap 5 more can quickly rise, and start time quickening.In addition when seal 12 and the second magnet
When 14 contact, the pressure for the spring 15 that valve rod 7 is subject to is more than the attraction between the first magnet 13 and the second magnet 14, sets in this way
The purpose set is to improve the response speed of valve to accelerate the falling speed of valve rod 7 and flap 5.Because when seal 12 with
When second magnet 14 contacts, valve rod 7 and flap 5 will not rise again at this time, and such flap 5 may only move downward, but flow
After body flows through, 15 pressure of spring that valve rod 7 is subject to is more than the attraction between the first magnet 13 and the second magnet 14, so valve rod
7 are generally in the case where accelerating to fall, and the speed that valve rod 7 rises and falls all becomes faster, and response speed is improved.
Preferably, center line symmetrical setting of the described two elongated slots 10 relative to valve stem sleeve 8.The purpose being arranged in this way is to protect
It holds the stress balance of valve rod 7 and more can smoothly be risen during raising and lowering because having obtained the support of the body of rod 11
Drop, improves the service life of entire valve in this way.
Preferably, described two bodies of rod 11 are integrally formed with valve rod 7 and are arranged.Manufacturing process can be not only saved in this way, and
And guarantee is also obtained in the bonding strength between the body of rod 11 and valve rod 7.
Preferably, the valve rod 7 and the junction of valve stem sleeve 8 are provided with gasket 16.Purpose of design in this way is to keep away
Exempt from fluid to enter in valve stem sleeve 8, prevent the spring 15 in valve stem sleeve 8 from being corroded by fluid, ensure that the performance of spring 15 so that
The service life of spring 15 extends.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of lifting/lowering type check-valves, including valve body and valve deck, are connected between the valve body and valve deck by screw bolt and nut
It connects, intake channel and exit passageway is provided in the valve body, the valve body is provided with valve seat in the side of intake channel, described
It is provided with the channel being connected to the intake channel in valve seat, is provided in the valve body and the mutually matched valve of the valve seat
The upper end of valve, the flap is connected with valve rod, is provided with valve stem sleeve on the inside of the valve deck, sliding slot is provided on the valve stem sleeve,
The upper end of the valve rod is slidably arranged in sliding slot, it is characterised in that：Open up vertically on the valve stem sleeve there are two shape and
The all identical elongated slot of size, on the flap setting there are two with the matched body of rod of the elongated slot, the body of rod close to long
The end set of slot has seal, the first magnet is coated in the seal, the bottom of described two elongated slots is provided with and institute
The second magnet that the first magnet attracts each other is stated, spring is provided in the valve stem sleeve, when seal and the second magnet contact,
The pressure for the spring that valve rod is subject to is more than the attraction 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
Center line symmetrical setting.
3. lifting/lowering type check-valves according to claim 1, it is characterised in that：Described two bodies of rod and valve-stem integrated at
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 gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610790267.4A CN106195357B (en) | 2016-08-31 | 2016-08-31 | Lifting/lowering type check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610790267.4A CN106195357B (en) | 2016-08-31 | 2016-08-31 | Lifting/lowering type check-valves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106195357A CN106195357A (en) | 2016-12-07 |
| CN106195357B true CN106195357B (en) | 2018-08-21 |
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ID=58086309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610790267.4A Active CN106195357B (en) | 2016-08-31 | 2016-08-31 | Lifting/lowering type check-valves |
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| CN (1) | CN106195357B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131330A (en) * | 2017-05-29 | 2017-09-05 | 罗显平 | A kind of gravity one-way cock and its application method |
| CN109373023B (en) * | 2018-11-23 | 2024-02-06 | 苏州赛谱仪器有限公司 | Dynamic electromagnetic regulation type back pressure valve device |
| CN109464737B (en) * | 2018-12-06 | 2024-05-07 | 尚楠 | Male urinary catheter |
| CN109654234B (en) * | 2019-01-29 | 2023-08-11 | 吕家杰 | Launching mechanism with spherical valve clack |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2789539Y (en) * | 2004-12-07 | 2006-06-21 | 上海市政工程设计研究院 | Up-down non-return valve |
| CN201031996Y (en) * | 2007-03-30 | 2008-03-05 | 邓玉斌 | Pipeline empty valve of solar water heater |
| DE102007020692A1 (en) * | 2007-05-03 | 2008-11-06 | Daimler Ag | Check valve for use in internal combustion engine of motor vehicle, has spring element pre-stressing closing body into end position, where closing body is pre-stressed in end position by magnetic attraction between elements |
| CN201236994Y (en) * | 2008-08-15 | 2009-05-13 | 中芯国际集成电路制造(上海)有限公司 | Reflow-stopping reaction valve |
| CN206054827U (en) * | 2016-08-31 | 2017-03-29 | 苏州科迪流体控制设备有限公司 | Lifting/lowering type check-valves |
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- 2016-08-31 CN CN201610790267.4A patent/CN106195357B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106195357A (en) | 2016-12-07 |
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