CN103851234A - Low-resistance zero-pressure sealing rubber flap valve checking device - Google Patents
Low-resistance zero-pressure sealing rubber flap valve checking device Download PDFInfo
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- CN103851234A CN103851234A CN201410059771.8A CN201410059771A CN103851234A CN 103851234 A CN103851234 A CN 103851234A CN 201410059771 A CN201410059771 A CN 201410059771A CN 103851234 A CN103851234 A CN 103851234A
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- valve body
- valve
- lobe
- flexible rubber
- protruding ring
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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
- F16K15/14—Check valves with flexible valve members
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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 low-resistance zero-pressure sealing rubber flap valve checking device and belongs to the technical field of a control device on a medium pipeline. The low-resistance zero-pressure sealing rubber flap valve checking device comprises a valve body, a flow passage formed in the valve body and a valve cover arranged on the valve body; a slot is formed between the position at the upper end inside the valve body, which is close to a water inlet, and the valve cover; a supporting shaft is arranged in the slot; the supporting shaft is fixedly connected with a flexible rubber flap valve for sealing the valve body. The low-resistance zero-pressure sealing rubber flap valve checking device has a simple structure and a wide application range, is particularly suitable for various working conditions of a drainage system and takes backflow preventing and one-way checking effects. Opening and closing rotation of the valve is implemented by the flexible rubber flap valve; a rubber flat valve is lined with nylon cloth so as to strengthen toughness; the low-resistance zero-pressure sealing rubber flap valve checking device resists to bending fatigue; the middle position of the low-resistance zero-pressure sealing rubber flap valve checking device is lined with a steel plate, which takes effects of bearing the pressure and closing the valve.
Description
Technical field
The invention belongs to the control gear technical field on medium pipeline, be specifically related to a kind of lower resistance zero pressure caulking gum lobe check device.
Background technique
Existing safety check, flap is the rigid construction of metallic material, due to the reason of metallic material, self gravitation is larger, in the water passage system of lower pressure (or with no pressure), the flap of safety check can not be washed open by water, and then plays the effect of non-return, and therefore designing a kind of check device according to the water passage system of lower pressure (or with no pressure) becomes technical barrier.
Summary of the invention
Object of the present invention is exactly the defect for prior art, and a kind of lower resistance zero pressure caulking gum lobe check device is provided.Be applicable to enclosed water passage system (such as pipeline etc.), flow backwards for preventing, form backflow pollution, be applicable to the water passage system of lower pressure (or with no pressure), it is very low that damage by water requires, such as drainage pipe etc.
The technical solution used in the present invention is: comprise valve body, be arranged on the runner in valve body and be arranged on the valve gap on valve body, upper end is near being provided with groove between the valve body of water intake one end and valve gap in described valve body, in described groove, be provided with back shaft, on described back shaft, be fixedly connected with the flexible rubber lobe that is useful on sealed valve body.
Further preferred structure, the second groove of offering on the first groove that between described valve body and valve gap, set groove is offered by described valve body upper-end surface and described valve gap lower end surface surrounds jointly.
Further preferred structure, described flexible rubber lobe comprises the wear-resisting connecting band, the steel plate frame being connected with wear-resisting connecting band bottom that are wound in outside back shaft, is wrapped in the rubber plate outside wear-resisting connecting band and steel plate frame.
Further preferred structure, described wear-resisting connecting band comprises interconnective holding part and linkage section, and described holding part top is fixedly connected with back shaft, and described linkage section bottom is connected with steel plate frame, and the rotating center of described flexible rubber lobe is positioned on linkage section.
Further preferred structure, described wear-resisting connecting band material is nylon cloth.
Further preferred structure, described steel plate frame is the Circular plate structure that upper end is connected with wear-resisting connecting band.
Further preferred structure, is provided with sealing configuration between described flexible rubber lobe and valve body.
Further preferred structure, described sealing configuration is the first protruding ring and the second protruding ring that protrudes from flexible rubber lobe in the side that contacts with valve body of flexible rubber lobe, between described the first protruding ring and the second protruding ring, is provided with groove; The outer of described the first protruding ring is mutually vertical with described valve body; The protruding thickness of described the second protruding ring is greater than the thickness of the first protruding ring, described the second protruding ring is to being in tilted layout along the direction of flexible rubber lobe outer, and the flexible rubber lobe of the rear end of described the second protruding ring is provided with the bending activity space of the second protruding ring.
The keying rotation of valve of the present invention realizes by flexible rubber clack, rubber clack liner nylon cloth strengthens toughness, counter-bending fatigue, intermediate portion lined steel framework, play pressure-bearing and close valve action, the rotating center of rubber clack and steel plate frame position of centre of gravity have certain bias, guarantee that rubber clack can lean on the effect of deadweight to close in situation with no pressure, the sealing position of rubber clack adopts the design that low pressure seal combines with high pressure sealing simultaneously, can realize low pressure (or with no pressure) sealing, but valve damage by water very low (damage by water is low to moderate 0.1 meter of head), when high pressure sealing, can reach under Maximum operating pressure rubber clack indeformable.The present invention is simple in structure, applied widely, is particularly useful for the various operating modes of drainage system, plays the effect that prevents refluence, one-way non-return.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the local enlarged diagram of flexible rubber lobe in Fig. 1;
Fig. 3 is flexible rubber lobe sectional view;
Fig. 4 is the local enlarged diagram of wear-resisting connecting band;
Fig. 5 is the schematic diagram of sealing configuration between flexible rubber lobe and valve body.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, be convenient to be well understood to the present invention, but they do not form restriction to the present invention.
As shown in Fig. 1-Fig. 3, the present invention includes and comprise valve body 1, be arranged on the runner in valve body 1 and be arranged on the valve gap 2 on valve body 1, the interior upper end of described valve body 1 is near being provided with groove between the valve body 1 of water intake one end and valve gap 2, in described groove, be provided with back shaft 4, on described back shaft 4, be fixedly connected with the flexible rubber lobe 3 that is useful on sealed valve body 1.The second groove 2.1 of offering on the first groove 1.1 that between described valve body 1 and valve gap 2, set groove is offered by described valve body 1 upper-end surface and described valve gap 2 lower end surfaces surrounds jointly.Described flexible rubber lobe 3 comprises the wear-resisting connecting band 5, the steel plate frame 6 being connected with wear-resisting connecting band 5 bottoms that are wound in outside back shaft 4, be wrapped in the rubber plate 7 outside wear-resisting connecting band 5 and steel plate frame 6.As shown in Figure 4, described wear-resisting connecting band 5 comprises interconnective holding part 5.1 and linkage section 5.2, described holding part 5.1 tops are fixedly connected with back shaft 4, and described linkage section 5.2 bottoms are connected with steel plate frame 6, and the rotating center of described flexible rubber lobe 3 is positioned on linkage section 5.2.Described wear-resisting connecting band 5 materials are nylon cloth.The Circular plate structure that described steel plate frame 6 is connected with wear-resisting connecting band 5 for upper end.
In such scheme, as shown in Figure 4, Figure 5, between described flexible rubber lobe 3 and valve body 1, be provided with sealing configuration 8.Described sealing configuration 8 is the part on flexible rubber lobe 3, in the side that described sealing configuration 8 contacts with valve body 1 for flexible rubber lobe 3, protrude from the first protruding ring 8.1 and second protruding ring 8.2 of flexible rubber lobe 3, between described the first protruding ring 8.1 and the second protruding ring 8.2, be provided with groove 8.3; The outer of described the first protruding ring 8.1 is mutually vertical with described valve body 1; The protruding thickness of described the second protruding ring 8.2 is greater than the thickness of the first protruding ring 8.1, described the second protruding ring 8.2 is to being in tilted layout along the direction of flexible rubber lobe 3 outers, and the flexible rubber lobe 3 of the rear end of described the second protruding ring 8.2 is provided with the bending activity space 8.4 for the second protruding ring 8.2.When flexible rubber lobe 3 is in the time that valve body 1 contacts, the second protruding ring 8.2 can first contact with valve body 1, realizes sealing, and the air in groove 8.3 is extruded, and now can realize super-low voltage sealing.Sealing configuration 8 between flexible rubber lobe 3 and valve body 1, can realize low pressure (or with no pressure) time, only depending on flap is that the deadweight of flexible rubber lobe 3 just can be closed sealing, not needing from gravity of sealing is simultaneously very large, can allow the unlatching damage by water of valve but very low; While having high pressure after valve, the sealing configuration 8 of flexible rubber lobe 3 is in regime of elastic deformation, and meanwhile, the activity space 8.4 bending for the second protruding ring 8.2, can reach under Maximum operating pressure flexible rubber lobe 3 indeformable can guarantee high pressure sealing time.
The upper end of flexible rubber lobe of the present invention is fixed in the groove of valve gap and valve body, can not freely rotate, and the keying of valve realizes by the flexible bending of flexible rubber lobe, and bending power is very little, almost negligible.Nylon cloth can be realized the flexible bending of flexible rubber lobe, and bending power is very little, and warping resistance fatigability is effective.Steel plate frame plays pressure-bearing and closes valve action, and under back pressure effect, flexible rubber lobe can not be out of shape.The keying rotation of valve of the present invention realizes by flexible rubber lobe, flexible rubber lobe liner nylon cloth strengthens toughness, counter-bending fatigue, intermediate portion lined steel framework, play pressure-bearing and close valve action, the rotating center of flexible rubber lobe and steel plate frame position of centre of gravity have certain bias, guarantee that flexible rubber lobe can lean on the effect of deadweight to close in situation with no pressure.
The content that this specification is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (8)
1. a lower resistance zero pressure caulking gum lobe check device, comprise valve body, be arranged on the runner in valve body and be arranged on the valve gap on valve body, it is characterized in that: upper end is near being provided with groove between the valve body of water intake one end and valve gap in described valve body, in described groove, be provided with back shaft, on described back shaft, be fixedly connected with the flexible rubber lobe that is useful on sealed valve body.
2. lower resistance zero pressure caulking gum lobe check device according to claim 1, is characterized in that: the second groove of offering on the first groove that between described valve body and valve gap, set groove is offered by described valve body upper-end surface and described valve gap lower end surface surrounds jointly.
3. lower resistance zero pressure caulking gum lobe check device according to claim 1, is characterized in that: described flexible rubber lobe comprises the wear-resisting connecting band, the steel plate frame being connected with wear-resisting connecting band bottom that are wound in outside back shaft, is wrapped in the rubber plate outside wear-resisting connecting band and steel plate frame.
4. lower resistance zero pressure caulking gum lobe check device according to claim 3, it is characterized in that: described wear-resisting connecting band comprises interconnective holding part and linkage section, described holding part top is fixedly connected with back shaft, described linkage section bottom is connected with steel plate frame, and the rotating center of described flexible rubber lobe is positioned on linkage section.
5. lower resistance zero pressure caulking gum lobe check device according to claim 3, is characterized in that: described wear-resisting connecting band material is nylon cloth.
6. lower resistance zero pressure caulking gum lobe check device according to claim 3, is characterized in that: described steel plate frame is the Circular plate structure that upper end is connected with wear-resisting connecting band.
7. according to the lower resistance zero pressure caulking gum lobe check device described in claim 1 or 3, it is characterized in that: between described flexible rubber lobe and valve body, be provided with sealing configuration.
8. lower resistance zero pressure caulking gum lobe check device according to claim 7, it is characterized in that: described sealing configuration is the first protruding ring and the second protruding ring that protrudes from flexible rubber lobe in the side that contacts with valve body of flexible rubber lobe, between described the first protruding ring and the second protruding ring, is provided with groove; The outer of described the first protruding ring is mutually vertical with described valve body; The protruding thickness of described the second protruding ring is greater than the thickness of the first protruding ring, described the second protruding ring is to being in tilted layout along the direction of flexible rubber lobe outer, and the flexible rubber lobe of the rear end of described the second protruding ring is provided with the bending activity space of the second protruding ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410059771.8A CN103851234A (en) | 2014-02-21 | 2014-02-21 | Low-resistance zero-pressure sealing rubber flap valve checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410059771.8A CN103851234A (en) | 2014-02-21 | 2014-02-21 | Low-resistance zero-pressure sealing rubber flap valve checking device |
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| Publication Number | Publication Date |
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| CN103851234A true CN103851234A (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410059771.8A Pending CN103851234A (en) | 2014-02-21 | 2014-02-21 | Low-resistance zero-pressure sealing rubber flap valve checking device |
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| CN (1) | CN103851234A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930823A (en) * | 2018-09-28 | 2018-12-04 | 苏州丹顿机电有限公司 | A kind of swing check valve |
| CN110425313A (en) * | 2016-08-09 | 2019-11-08 | 杭州小米环境科技有限公司 | Fire-preventing check valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020104567A1 (en) * | 2000-06-08 | 2002-08-08 | John Matthews | Swing check valve |
| CN102401156A (en) * | 2011-07-22 | 2012-04-04 | 南昌大学 | Simple backflow preventing valve |
| CN202597797U (en) * | 2012-05-31 | 2012-12-12 | 中煤科工集团重庆研究院 | Low-resistance swing type check valve of gas pipeline |
| CN202691173U (en) * | 2012-07-25 | 2013-01-23 | 安徽红星阀门有限公司 | Rubber-clack check valve |
| CN202756698U (en) * | 2012-09-03 | 2013-02-27 | 安徽红星阀门有限公司 | Rubber disc check valve |
| CN203067862U (en) * | 2013-01-22 | 2013-07-17 | 铁岭方众阀门有限公司 | Parent and child valve plate type swing cheek valve |
| CN203115192U (en) * | 2012-12-17 | 2013-08-07 | 浙江盾安阀门有限公司 | Check valve |
| CN203823154U (en) * | 2014-02-21 | 2014-09-10 | 武汉圣禹排水***有限公司 | Low resistance zero-pressure sealing check device with rubber clack valve |
-
2014
- 2014-02-21 CN CN201410059771.8A patent/CN103851234A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020104567A1 (en) * | 2000-06-08 | 2002-08-08 | John Matthews | Swing check valve |
| CN102401156A (en) * | 2011-07-22 | 2012-04-04 | 南昌大学 | Simple backflow preventing valve |
| CN202597797U (en) * | 2012-05-31 | 2012-12-12 | 中煤科工集团重庆研究院 | Low-resistance swing type check valve of gas pipeline |
| CN202691173U (en) * | 2012-07-25 | 2013-01-23 | 安徽红星阀门有限公司 | Rubber-clack check valve |
| CN202756698U (en) * | 2012-09-03 | 2013-02-27 | 安徽红星阀门有限公司 | Rubber disc check valve |
| CN203115192U (en) * | 2012-12-17 | 2013-08-07 | 浙江盾安阀门有限公司 | Check valve |
| CN203067862U (en) * | 2013-01-22 | 2013-07-17 | 铁岭方众阀门有限公司 | Parent and child valve plate type swing cheek valve |
| CN203823154U (en) * | 2014-02-21 | 2014-09-10 | 武汉圣禹排水***有限公司 | Low resistance zero-pressure sealing check device with rubber clack valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425313A (en) * | 2016-08-09 | 2019-11-08 | 杭州小米环境科技有限公司 | Fire-preventing check valve |
| CN108930823A (en) * | 2018-09-28 | 2018-12-04 | 苏州丹顿机电有限公司 | A kind of swing check valve |
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Application publication date: 20140611 |