CN2438893Y - Direct-through check valve - Google Patents
Direct-through check valve Download PDFInfo
- Publication number
- CN2438893Y CN2438893Y CN 00251098 CN00251098U CN2438893Y CN 2438893 Y CN2438893 Y CN 2438893Y CN 00251098 CN00251098 CN 00251098 CN 00251098 U CN00251098 U CN 00251098U CN 2438893 Y CN2438893 Y CN 2438893Y
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- valve body
- check device
- utility
- valve
- model
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- Expired - Fee Related
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Abstract
The utility model relates to a straight-through check valve. The utility model comprises a valve body and a flexible check device, wherein, the flexible check device is arranged in the valve body. The flexible check device is provided with an opening end part and a cross sealing end part which always lies in the self sealing state under the action of the external force. The utility model is fixed in the valve body by a conical-degree squeezing method, or is fixed in the valve body by a hooping member. The utility model has the advantages of simple structure, easy application, low cost, strong applicability, no noise and no mechanical abrasion, and improves the service life of the check valve.
Description
The utility model relates to a kind of straight-through type flexible check valve door, and this valve is applicable in the fluid pipeline system of engineerings such as plumbing, petrochemical industry, metallurgy, building, dwelling house.
Domestic existing check valve seal form can be divided into three kinds: plate-turning sealed, glueballs sealed type, fusiformis sealed type, and their shortcoming is:
1, the life-span is short: turnover panel is to rely on axle to rotate in axle sleeve to realize the start or stop action, and axle and axle sleeve are the mechanical wear point, rapid wear.
2, power consumption is high: the own wt of turnover panel is to rely on the current supporting, and water velocity is not a certain value, is constantly to change, and axle is relative with axle sleeve not to stop transmission, produces frictional resistance, so the height that consumes energy.
3, expense height: amount of maintenance is big, need often open valve and change easily damaged parts.
4, open, vibrate when closing big: there is damaging influence in entire pump real estate management road.
5, resistance is big: when water process turnover panel, glueballs or sealing shuttle, current become the resistance that " turbulent flow " increased water by " laminar flow ", thereby have increased the pressure loss in the water system.
6, poor sealing performance: (1) axle and axle sleeve quick abrasion, sealing surface displacement; (2) glueballs face and sealing shuttle are soft, and the connecting tendon of ball cover and rib cover is a steel, the high speed rotating that they are not stopped in cover by flow action, and the jumping ball accident takes place in the fracture easy to wear of the connecting tendon of cover.
The purpose of this utility model is to overcome the deficiency of above-mentioned existing safety check, and a kind of Through-conduit check valve is provided, and a kind of material full flexible is housed in its valve body, is salable non-return without external force, and straight-through clog-free rubber check device when opening.
The purpose of this utility model is in the following manner for realizing, Through-conduit check valve of the present utility model comprises a valve body and a flexible check device, wherein flexible check device is provided with in the valve body, and flexible check device has an open end and a cross hermetic terminal that is always the selfsealings state under no external force effect.This flexibility check device can be fixed in the valve body with tapering jam-packed method, or is fixed in the valve body by banding spare.
The cross hermetic terminal of described flexible check device is when opening near foursquare square hole.
Described flexible check device is by polar rubber (anti-permanent deformation, corrosion-resistant, heat-resisting, cold-resistant) the disposable sulfidization molding of material, remain no external force selfsealings state, the distortion number of times can reach 200,000 times, when fluid flows through the valve body front end with fast speed very, and when flowing into flexible check device, owing to be subjected to medium self pressure, flexible check device is opened near foursquare square hole automatically by cross sealed mouth, and this moment, fluid was accessible passes through, and the flow valve rear end.When needing when out of service because of manufacturing mechanism or having a power failure for some reason when breaking down, this check device can automatically restore to cross sealing state, has promptly reached the non-return purpose, and cross sealing surface is the face contact, sealability is splendid, thereby ensures the safety in production of whole pump house.Because when medium during at square hole by a dotted line, the punching of unlatching can not complete opening to square, so when designing this flexible check device, considered the ratio of the area of passage and the pipeline area of passage of this valve.The check valve area of passage is that the area of a circle draws the long-pending principle in aspect to quote from out: on same object the area of a circle connect triangle area, the area of a circle connect area of a polygon, aspect long-pendingly connect that the aspect is long-pending, the aspect is long-pending connects that triangle area, aspect long-pendingly connect the area of a circle, the aspect is amassed and connect area of a polygon etc.
The utility model has the advantages that:
1, simple in structure, to implement easily, cost is low.
2, applicability is wide, and (1) can use in occasions such as high temperature resistant, soda acid, oil, vapour, seawater.(2) outlet that both can be arranged separately in pipeline of flexible check device body also can be used with the supporting check valve of doing of valve body.
3, long service life does not have any mechanical wear point (its life-span is depended on the aging and corrosion-resistant degree of flexible check device rubber material, and the life-span can reach 25-30).
4, no resistance to water-flow, water flow mode is straight-through without hindrance.
5, sealability is stable, and no external force can close cutting.
6, no maintenance workload does not have any easily damaged parts.
7, close, open when takeing on and normally moving, do not have any noise.
8, power consumption is low, and the area of passage of valve is 1.3-1.6 a times of pipeline drift diameter area.
An of the present utility model most preferred embodiment given below by accompanying drawing further describes structure of the present utility model, wherein:
Accompanying drawing 1 is an embodiment's of Through-conduit check valve door an overall structure schematic representation;
Accompanying drawing 2 is the structural representation of flexible check device;
Accompanying drawing 3 is the shown schematic representation of A-A line among Fig. 2.
Number in the figure is expressed as valve body 1, flexible check device 2, and the cross sealed mouth 3 of flexible check device, dotted line square hole 4, it is the working state of cross sealed mouth 3 after unlatching, and expands outwardly.
Referring to accompanying drawing, Through-conduit check valve of the present utility model comprises a valve body 1 and a flexible check device 2, described flexible check device 2 is arranged in the valve body 1, this flexibility check device 2 has an open end and a cross hermetic terminal 3 that is always the selfsealings state under no external force effect, be subjected under medium self pressure, its cross hermetic terminal 3 is opened automatically, is dotted line square hole 4 among the figure, and this moment, flowing medium was accessible directly passes through.Described flexible check device 2 is fixed in the valve body 1 various ways is arranged, and Fig. 1 only shows a kind of, and it forms by tapering jam-packed method.
Should be expressly understood that accompanying drawing only is a most preferred embodiment that has exemplified the utility model safety check, and the utility model is not limited in this, any modification of being made on this basis can not break away from the application's category.
Claims (2)
1, a kind of Through-conduit check valve, it is characterized in that it comprises a valve body and a flexible check device, wherein flexible check device is provided with in the valve body, flexible check device has an open end and a cross hermetic terminal that is always the selfsealings state under no external force effect, this flexibility check device can be fixed in the valve body with tapering jam-packed method, or is fixed in the valve body by banding spare.
2, safety check according to claim 1 is characterized in that the cross hermetic terminal of described flexible check device is near foursquare square hole when opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00251098 CN2438893Y (en) | 2000-08-31 | 2000-08-31 | Direct-through check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00251098 CN2438893Y (en) | 2000-08-31 | 2000-08-31 | Direct-through check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2438893Y true CN2438893Y (en) | 2001-07-11 |
Family
ID=33609126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00251098 Expired - Fee Related CN2438893Y (en) | 2000-08-31 | 2000-08-31 | Direct-through check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2438893Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371039C (en) * | 2002-03-07 | 2008-02-27 | 榎本股份有限公司 | Medical equipment |
| CN101349356B (en) * | 2007-07-16 | 2012-07-25 | 周俊 | One-way elastic valve and fluid delivery device used thereby |
| WO2013123612A1 (en) * | 2012-02-20 | 2013-08-29 | Li Wanhong | Check valve for fully sealed heater |
| CN106567947A (en) * | 2016-11-10 | 2017-04-19 | 澳柯玛股份有限公司 | One-way valves and freezer equipped with one-way valves |
| CN115076409A (en) * | 2022-08-11 | 2022-09-20 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Multi-petal type isolation water valve |
-
2000
- 2000-08-31 CN CN 00251098 patent/CN2438893Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371039C (en) * | 2002-03-07 | 2008-02-27 | 榎本股份有限公司 | Medical equipment |
| CN101349356B (en) * | 2007-07-16 | 2012-07-25 | 周俊 | One-way elastic valve and fluid delivery device used thereby |
| WO2013123612A1 (en) * | 2012-02-20 | 2013-08-29 | Li Wanhong | Check valve for fully sealed heater |
| CN106567947A (en) * | 2016-11-10 | 2017-04-19 | 澳柯玛股份有限公司 | One-way valves and freezer equipped with one-way valves |
| CN115076409A (en) * | 2022-08-11 | 2022-09-20 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Multi-petal type isolation water valve |
| CN115076409B (en) * | 2022-08-11 | 2022-11-08 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Multi-petal type isolation water valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |