CN203823344U - Low resistance zero-pressure sealing flexible flap valve - Google Patents
Low resistance zero-pressure sealing flexible flap valve Download PDFInfo
- Publication number
- CN203823344U CN203823344U CN201420077376.8U CN201420077376U CN203823344U CN 203823344 U CN203823344 U CN 203823344U CN 201420077376 U CN201420077376 U CN 201420077376U CN 203823344 U CN203823344 U CN 203823344U
- Authority
- CN
- China
- Prior art keywords
- flap valve
- flexible rubber
- protruding ring
- rubber flap
- basic frame
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a low resistance zero-pressure sealing flexible flap valve and belongs to the technical field of a control device for a medium pipeline. The low resistance zero-pressure sealing flexible flap valve comprises a foundation frame fixedly arranged on the outer wall of a pipeline outlet, wherein a runner is arranged in the foundation frame; a flange is arranged on the outer edge of the foundation frame, a gland is fixedly arranged on the exterior of the flange, a slot is arranged between the flange and the gland, a support shaft is arranged in the slot, a flexible rubber flap valve used for sealing the foundation frame is fixedly connected with the support shaft, when the flexible rubber flap valve is closed, the flexible rubber flap valve makes contact with the outer end surface of the foundation frame. The low resistance zero-pressure sealing flexible flap valve is simple in structure, wide in application range, is particularly applicable to various conditions of a drainage system and can play the roles of backflow and bidirectional stop.
Description
Technical field
The utility model belongs to the control gear technical field on medium pipeline, is specifically related to a kind of lower resistance zero pressure sealed soft flap valve.
Background technique
Existing flap valve 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), flap valve can not be washed open by water, and then play and open and the effect of non-return, therefore designing a kind of check device according to the water passage system of lower pressure (or with no pressure) becomes technical barrier.
Model utility content
The purpose of this utility model is exactly the defect for prior art, and a kind of lower resistance zero pressure sealed soft flap valve is provided.Be applicable to the water passage system outlet of open type or the jointing by small pipeline access large pipeline, flow backwards for preventing, form backflow pollution, be applicable to the water passage system of lower pressure, such as drainage pipe etc.
The technical solution adopted in the utility model is: comprise the basic frame being fixed on pipe water outlet outer wall, in described basic frame, be provided with runner, described basic frame outer is provided with flange, described flange is fixed with gland outward, between described flange and gland, be provided with groove, in described groove, be provided with back shaft, on described back shaft, be fixedly connected with the flexible rubber flap valve that is useful on the basic frame of sealing, in the time that flexible rubber flap valve is closed, described flexible rubber flap valve contacts with described basic frame exterior edge face.
Further preferred structure, the second groove of offering on the first groove that between described flange and gland, set groove is offered by described flange exterior edge face and described gland interior edge face surrounds jointly.
Further preferred structure, described flexible rubber flap valve 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, 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 flap valve 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 flap valve and basic frame.
Further preferred structure, described sealing configuration is the first protruding ring and the second protruding ring that protrudes from flexible rubber flap valve in the side that contacts with basic frame of flexible rubber flap valve, 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 basic frame; 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 flap valve outer, and the flexible rubber flap valve of the rear end of described the second protruding ring is provided with the bending activity space for the second protruding ring.
The keying rotation that the external flexible door of the utility model is installed on this flap valve of water outlet of open type realizes by flexible rubber flap valve, flexible rubber flap valve liner nylon cloth strengthens toughness, intermediate portion lined steel plate, play pressure-bearing and close valve action, rotation position and steel plate frame position of centre of gravity have certain bias, guarantee flexible rubber flap valve deadweight effect under close, the sealing position of flexible rubber flap valve adopts the design that low pressure seal combines with high pressure sealing simultaneously, can realize low pressure seal (pressure be low to moderate 0.2 meter of head), when high pressure sealing, can reach under Maximum operating pressure flexible rubber flap valve indeformable.This flap valve 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.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is cross-section side view;
Fig. 3 is the local enlarged diagram in I place in Fig. 2
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, is convenient to be well understood to the utility model, but they do not form and limit the utility model.
As shown in Figure 1 and Figure 2, the utility model comprises the basic frame 1 being fixed on pipe water outlet outer wall, in described basic frame 1, be provided with runner 1.2, described basic frame 1 outer is provided with flange 1.1, the outer gland 2 that is fixed with of described flange 1.1, between described flange 1.1 and gland 2, be provided with groove, in described groove, be provided with back shaft 3, on described back shaft 3, be fixedly connected with the flexible rubber flap valve that is useful on the basic frame 1 of sealing, in the time that flexible rubber flap valve is closed, described flexible rubber flap valve contacts with described basic frame 1 exterior edge face.The second groove 2.1 of offering on the first groove 1.3 that between described flange 1.1 and gland 2, set groove is offered by described flange 1.1 exterior edge faces and described gland 2 interior edge faces surrounds jointly.Described flexible rubber flap valve comprises the wear-resisting connecting band 4, the steel plate frame 5 being connected with wear-resisting connecting band 4 bottoms that are wound in outside back shaft 3, be wrapped in the rubber plate 6 outside wear-resisting connecting band 4 and steel plate frame 5.Described wear-resisting connecting band 4 comprises interconnective holding part 4.1 and linkage section 4.2, described holding part 4.1 tops are fixedly connected with back shaft 3, described linkage section 4.2 bottoms are connected with steel plate frame 5, the rotating center of described flexible rubber flap valve is positioned on linkage section 4.2, the rubber of liner nylon cloth has enough flexibilities and toughness, when spin-up can well be realized, to media environment portion sensitivity, there will not be the problems such as foreign material jam.Described wear-resisting connecting band 4 materials are nylon cloth.The Circular plate structure that described steel plate frame 5 is connected with wear-resisting connecting band 4 for upper end.The external flexible door of the utility model is installed on the water outlet of open type, and in figure, a direction is water outlet direction, and the keying rotation of this flap valve realizes by flexible rubber flap valve.
In such scheme, as shown in Figure 3, between described flexible rubber flap valve and basic frame 1, be provided with sealing configuration 7.Described sealing configuration 7 is the parts on flexible rubber flap valve.In the side that described sealing configuration 7 contacts with basic frame 1 for flexible rubber flap valve, protrude from the first protruding ring 7.1 and second protruding ring 7.2 of flexible rubber flap valve, between described the first protruding ring 7.1 and the second protruding ring 7.2, be provided with groove 7.3; The outer of described the first protruding ring 7.1 is mutually vertical with described basic frame 1; The protruding thickness of described the second protruding ring 7.2 is greater than the thickness of the first protruding ring 7.1, described the second protruding ring 7.2 is to being in tilted layout along the direction of flexible rubber flap valve outer, and the flexible rubber flap valve of the rear end of described the second protruding ring 7.2 is provided with the bending activity space 7.4 for the second protruding ring 7.2.When flexible rubber flap valve is in the time that basic frame 1 contacts, the second protruding ring 7.2 can first contact with basic frame 1, realizes sealing, and the air in groove 7.3 is extruded, and now can realize super-low voltage sealing.Sealing configuration 7 between flexible rubber flap valve and basic frame 1, can realize low pressure (or with no pressure) time, only depends on the deadweight of flexible rubber flap valve just can close sealing, and not needing from gravity of sealing is simultaneously very large, can open damage by water but very low; When high pressure, the sealing configuration of flexible rubber flap valve is in regime of elastic deformation, and meanwhile, the activity space 7.4 bending for the second protruding ring 7.2, can reach under Maximum operating pressure flexible rubber flap valve indeformable can ensure high pressure sealing time.
The upper end of the utility model flexible rubber flap valve is fixed in the groove of valve gap and basic frame, can not freely rotate, and the keying of valve realizes by the flexible bending of flexible rubber flap valve, and bending power is very little, almost negligible.Nylon cloth can be realized the flexible bending of flexible rubber flap valve, 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 flap valve can not be out of shape.The keying rotation of the utility model valve realizes by flexible rubber flap valve, flexible rubber flap valve 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 flap valve and steel plate frame position of centre of gravity have certain bias, guarantee that flexible rubber flap valve 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 sealed soft flap valve, comprise the basic frame being fixed on pipe water outlet outer wall, it is characterized in that: in described basic frame, be provided with runner, described basic frame outer is provided with flange, and described flange is fixed with gland outward, between described flange and gland, is provided with groove, in described groove, be provided with back shaft, on described back shaft, be fixedly connected with the flexible rubber flap valve that is useful on the basic frame of sealing, in the time that flexible rubber flap valve is closed, described flexible rubber flap valve contacts with described basic frame exterior edge face.
2. lower resistance zero pressure sealed soft flap valve according to claim 1, is characterized in that: the second groove of offering on the first groove that between described flange and gland, set groove is offered by described flange exterior edge face and described gland interior edge face surrounds jointly.
3. lower resistance zero pressure sealed soft flap valve according to claim 1, is characterized in that: described flexible rubber flap valve 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 sealed soft flap valve 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 flap valve is positioned on linkage section.
5. lower resistance zero pressure sealed soft flap valve according to claim 3, is characterized in that: described wear-resisting connecting band material is nylon cloth.
6. lower resistance zero pressure sealed soft flap valve 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 sealed soft flap valve described in claim 1 or 3, it is characterized in that: between described flexible rubber flap valve and basic frame, be provided with sealing configuration.
8. lower resistance zero pressure sealed soft flap valve 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 flap valve in the side that contacts with basic frame of flexible rubber flap valve, 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 basic frame; 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 flap valve outer, and the flexible rubber flap valve of the rear end of described the second protruding ring is provided with the bending activity space for the second protruding ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077376.8U CN203823344U (en) | 2014-02-21 | 2014-02-21 | Low resistance zero-pressure sealing flexible flap valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077376.8U CN203823344U (en) | 2014-02-21 | 2014-02-21 | Low resistance zero-pressure sealing flexible flap valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203823344U true CN203823344U (en) | 2014-09-10 |
Family
ID=51478845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420077376.8U Expired - Fee Related CN203823344U (en) | 2014-02-21 | 2014-02-21 | Low resistance zero-pressure sealing flexible flap valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203823344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851300A (en) * | 2014-02-21 | 2014-06-11 | 武汉圣禹排水系统有限公司 | Low-resistance zero-pressure sealing flexible flap valve |
-
2014
- 2014-02-21 CN CN201420077376.8U patent/CN203823344U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851300A (en) * | 2014-02-21 | 2014-06-11 | 武汉圣禹排水系统有限公司 | Low-resistance zero-pressure sealing flexible flap valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 |