CN104500791A - Power-assistance lift check valve - Google Patents
Power-assistance lift check valve Download PDFInfo
- Publication number
- CN104500791A CN104500791A CN201410789941.8A CN201410789941A CN104500791A CN 104500791 A CN104500791 A CN 104500791A CN 201410789941 A CN201410789941 A CN 201410789941A CN 104500791 A CN104500791 A CN 104500791A
- Authority
- CN
- China
- Prior art keywords
- valve
- shaped
- coaxially
- valve body
- fluid
- 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.)
- Pending
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Classifications
-
- 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
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention relates to a power-assistance lift check valve. The power-assistance lift check valve comprises a valve body and a valve cover, a connection sleeve is integrally made on the upper portion of the valve body, the inner edge of the connection sleeve is provided with a thread, the lower portion of the valve cover is in coaxially threaded engagement and insertion into the connection sleeve, and the valve body is internally provided with a fluid inlet passage and a fluid outlet passage. An annular valve seat is arranged on one side of the fluid inlet passage in the valve body, the inner edge of the valve seat is provided with a fluid access port communicated with the fluid inlet passage, and an annular rubber sleeve with an arc outer edge is coaxially mounted at the root of the joint between the lower end of a valve rod and a valve clack. When a liquid circulation medium flows, the valve rod moves upwards to jack the valve cover, the rubber sleeve is compressed under pressure to generate micro-deformation, pressure applied to the rubber sleeve disappears after the circulation medium stops, and resilience of the rubber sleeve recoveries to assist in downward motion of the valve rod so as to enable the fluid access port to be sealed quickly.
Description
Technical field
The invention belongs to valve field, especially a kind of power-assisted Lift check valve.
Background technique
Lift check valve refers to and relies on medium flowing itself and automatic open and close flap, is used for the valve preventing medium from flowing backwards, also known as check valve, one-way valve, reflux valve and back pressure valve.Safety check belongs to a kind of automatic valve, and its Main Function prevents medium from flowing backwards, prevents pump and drive motor reversion, and the releasing of vessel media.The auxiliary system that safety check also can be used for may being raised above system pressure to pressure wherein provides on the pipeline of supply.Safety check mainly can be divided into Swing check valve (rotating according to center of gravity) and Lift check valve (moving along axis).
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, the power-assisted Lift check valve of a kind of novel structure, increase valve rod bounce-back power-assisted is provided.
The present invention is that technical solution problem adopts following technological scheme:
A kind of power-assisted Lift check valve, comprise valve body and valve gap, valve body top is integrally shaped with adapter sleeve, adapter sleeve Inner edge is shaped with screw thread, the engagement of bonnet lower coaxial threaded is embedded in the adapter sleeve of valve body, fluid inlet channel and fluid outlet channels is provided with in described valve body, the side of described valve inner fluid inlet channel is provided with ring-shaped valve seats, valve seat Inner edge is that the fluid be interconnected with inlet passage passes through mouth, coaxially flap is mounted cover in described valve seat upper-end surface, flap upper surface is coaxially integrally shaped with valve rod, slide coaxially to slide to wear and turn in the chute that valve gap inner coaxial is shaped with in the upper end of described valve rod, spring is coaxially arranged with between described valve stem tip face and chute interior edge face, a ring-shaped rubber cover is coaxially installed at the root place be combined with flap in valve rod lower end, the outer rim of described rubber sleeve is arc.
And, be integrally shaped with rotating nut on the top of described valve gap.
Good effect of the present invention is as follows:
Power-assisted Lift check valve provided by the invention coaxially installs a ring-shaped rubber cover at the place be combined with flap of valve rod, the outer rim of rubber sleeve is arc, when the circulation medium flowing of liquid, valve rod moves, and flap withstands valve gap, pressure makes rubber sleeve hand contract and produces micro-deformation, when circulation medium stops, rubber sleeve distress resolves, produces resilience, power-assisted valve rod moves down, and quick-sealing fluid passes through mouth.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of power-assisted Lift check valve, its structure as shown in Figure 1, comprise: valve body 10 and valve gap 1, valve body top is integrally shaped with adapter sleeve 5, adapter sleeve Inner edge is shaped with screw thread, the engagement of bonnet lower coaxial threaded is embedded in the adapter sleeve of valve body, fluid inlet channel 8 and fluid outlet channels 11 is provided with in described valve body, the side of described valve inner fluid inlet channel is provided with ring-shaped valve seats 7, valve seat Inner edge is that the fluid be interconnected with inlet passage passes through mouth, flap 9 is coaxially mounted cover in described valve seat upper-end surface, flap upper surface is coaxially integrally shaped with valve rod 4, slide coaxially to slide to wear and turn in the chute 3 that valve gap inner coaxial is shaped with in the upper end of described valve rod, spring 2 is coaxially arranged with between described valve stem tip face and chute interior edge face, valve rod moves, extrusion spring.In order to easy for installation, be integrally shaped with rotating nut on the top of described valve gap.
Innovation of the present invention is:
The root place be combined with flap in valve rod lower end coaxially installs a ring-shaped rubber and overlaps 6, the outer rim of described rubber sleeve is arc, when the circulation medium flowing of liquid, valve rod moves, and flap withstands valve gap, pressure makes rubber sleeve produce micro-deformation by compression, when circulation medium stops, rubber sleeve distress resolves, produces resilience, power-assisted valve rod moves down, and quick-sealing fluid passes through mouth.
The working procedure of this Lift check valve is as follows:
When above-mentioned Lift check valve is arranged on and pipeline plays check function, liquid medium passes through fluid inlet channel, fluid is pushed flap open by mouth and is then entered outlet passage, in the process that fluid passes through, flap is boosted, flap promotes valve rod upward sliding in chute, the upper end Compress Spring of valve rod, when the flow of liquid medium is constant, spring keeps compressive state, flap is opened, when there is no liquid medium process or liquid medium backflow, spring automatically opens promotion valve rod and moves downward until make flap close, check function can be played well when above-mentioned Lift check valve normally uses.
Claims (2)
1. a power-assisted Lift check valve, comprise valve body and valve gap, valve body top is integrally shaped with adapter sleeve, adapter sleeve Inner edge is shaped with screw thread, the engagement of bonnet lower coaxial threaded is embedded in the adapter sleeve of valve body, fluid inlet channel and fluid outlet channels is provided with in described valve body, the side of described valve inner fluid inlet channel is provided with ring-shaped valve seats, valve seat Inner edge is that the fluid be interconnected with inlet passage passes through mouth, coaxially flap is mounted cover in described valve seat upper-end surface, flap upper surface is coaxially integrally shaped with valve rod, slide coaxially to slide to wear and turn in the chute that valve gap inner coaxial is shaped with in the upper end of described valve rod, spring is coaxially arranged with between described valve stem tip face and chute interior edge face, it is characterized in that: a ring-shaped rubber cover is coaxially installed at the root place be combined with flap in valve rod lower end, the outer rim of described rubber sleeve is arc.
2. power-assisted Lift check valve according to claim 1, is characterized in that: be integrally shaped with rotating nut on the top of described valve gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410789941.8A CN104500791A (en) | 2014-12-17 | 2014-12-17 | Power-assistance lift check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410789941.8A CN104500791A (en) | 2014-12-17 | 2014-12-17 | Power-assistance lift check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104500791A true CN104500791A (en) | 2015-04-08 |
Family
ID=52942223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410789941.8A Pending CN104500791A (en) | 2014-12-17 | 2014-12-17 | Power-assistance lift check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500791A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020441A (en) * | 2015-06-04 | 2015-11-04 | 许炎章 | Right-angle type check valve for industrial refrigeration |
| CN105697798A (en) * | 2016-03-22 | 2016-06-22 | 扬州四启环保设备有限公司 | One-way valve assembly used in sludge pump |
| CN105972274A (en) * | 2016-08-03 | 2016-09-28 | 氟络塞尔特种阀门(苏州)有限公司 | Lift check valve |
| CN107514491A (en) * | 2017-10-11 | 2017-12-26 | 苏州科迪流体控制设备有限公司 | A kind of safe adverse current valve body for avoiding liquid liquid from flowing backwards |
| FR3103020A1 (en) * | 2019-11-12 | 2021-05-14 | Sogefi Air & Cooling | Sliding valve and motor vehicle comprising it |
-
2014
- 2014-12-17 CN CN201410789941.8A patent/CN104500791A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020441A (en) * | 2015-06-04 | 2015-11-04 | 许炎章 | Right-angle type check valve for industrial refrigeration |
| CN105697798A (en) * | 2016-03-22 | 2016-06-22 | 扬州四启环保设备有限公司 | One-way valve assembly used in sludge pump |
| CN105972274A (en) * | 2016-08-03 | 2016-09-28 | 氟络塞尔特种阀门(苏州)有限公司 | Lift check valve |
| CN107514491A (en) * | 2017-10-11 | 2017-12-26 | 苏州科迪流体控制设备有限公司 | A kind of safe adverse current valve body for avoiding liquid liquid from flowing backwards |
| FR3103020A1 (en) * | 2019-11-12 | 2021-05-14 | Sogefi Air & Cooling | Sliding valve and motor vehicle comprising it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150408 |
|
| WD01 | Invention patent application deemed withdrawn after publication |