CN104121393A - Flexible flap valve - Google Patents
Flexible flap valve Download PDFInfo
- Publication number
- CN104121393A CN104121393A CN201410306686.7A CN201410306686A CN104121393A CN 104121393 A CN104121393 A CN 104121393A CN 201410306686 A CN201410306686 A CN 201410306686A CN 104121393 A CN104121393 A CN 104121393A
- Authority
- CN
- China
- Prior art keywords
- door
- strengthened
- neoprene plate
- rubber plate
- reinforcement
- 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
Links
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
- F16K15/14—Check valves with flexible valve members
- F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Barrages (AREA)
Abstract
The invention relates to a flexible flap valve and belongs to the technical field of water supply and drainage equipment. The flexible flap valve comprises a valve body provided with a flow channel. A cylindrical pipe body is fixed to the outer wall of the valve body. The longitudinal central section of the pipe body is of a trapezoidal structure with the short top end and the long bottom end. An inclined flow channel opening is formed in the outer end face of the pipe body. The top end of the valve body is fixedly connected with the top end of a strengthened chloroprene rubber plate through a bolt. When the strengthened chloroprene rubber plate is closed, the strengthened chloroprene rubber plate makes seal contact with the outer end face of the pipe body, and an arc groove for bending the strengthened chloroprene rubber plate is formed in the upper end of the strengthened chloroprene rubber plate. The flexible flap valve is formed by only one strengthened chloroprene rubber plate, is low in weight and smaller in opening force, is specially designed for low-pressure water supply and drainage systems, and is simple in structure, economical and practical.
Description
Technical field
The invention belongs to plumbing equipment technical field, be specifically related to a kind of flexible door.
Background technique
The flexible door panel top of existing flexible door is fixed on a body, because the center of rotation of the immovable point of flexible door panel bending of self when being washed open by water is not in same point, and each inflection point is all random, flexible door panel will overcome the distortion of self material, cause in the water passage system of lower pressure (or with no pressure), door-plate opening force is large, is difficult for being washed open by water; When water refluxes, in the larger situation of hydraulic pressure, flexible door panel easily deforms, and then the effect of non-return is bad simultaneously.
Summary of the invention
Object of the present invention is exactly the defect for prior art, and a kind of flexible door is provided.Be applicable to from density current, such as drainage pipe etc.
The technical solution used in the present invention is: comprise the door body that has runner, on the external wall of described door, be fixed with cylindrical tube, the longitudinal center cross section of described body is the long trapezium structure in short bottom, top, described body exterior edge face forms the runner mouth of inclination, described door body top is fixed by bolt and reinforcement neoprene plate top, when reinforcement neoprene plate is closed, described reinforcement neoprene plate contacts with the sealing of body exterior edge face, and described reinforcement neoprene plate upper end has the arc groove for self bending.
Further preferred structure, between described door body top and reinforcement neoprene plate, be provided with dunnage, described dunnage comprises holding part and supporting section, described holding part is bolted on a body top jointly with strengthening neoprene plate, and described supporting section is arranged towards the true dip direction identical with body exterior edge face.
Further preferred structure, fixing outside, Yu Menti top, described reinforcement neoprene plate top is provided with stainless steel press strip, and described stainless steel press strip and reinforcement neoprene plate are bolted on a body top jointly.
Flexible door door-plate of the present invention is only strengthened neoprene plate by one and is formed, lightweight, opening force is less, aims at the water passage system design of lower pressure, simple in structure, economical and practical, and use the dunnage identical with body opening angle of inclination to support, make door-plate and door body beveled in one plane, guarantee sealability, when non-return, to door-plate, provide better just supporting effect; The weight of strengthening neoprene door-plate is light compared with other metallic material, upper end crooked position has the arc groove of certain depth again, for door-plate provides center of rotation, reduced the thickness of rubber door-plate, so it is easier to open, opening force power is less, has certain angle of inclination simultaneously, can, under the effect of deadweight, close voluntarily; Adopt stainless steel press strip to strengthening the direct sealing of neoprene door-plate, when oppositely bearing while necessarily closing hydraulic head pressure, strengthen neoprene door-plate certain distortion can occur, and between stainless steel press strip, wrap up more tight, better tightness.
Accompanying drawing explanation
Fig. 1 is plan view of the present invention;
Fig. 2 is side view of the present invention.
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 Figure 1 and Figure 2, the present invention includes the door body 1 that has runner, on described door body 1 outer wall, be fixed with cylindrical tube 2, the longitudinal center cross section of described body 2 is the long trapezium structure in short bottom, top, described body 2 exterior edge faces form the runner mouth of inclination, described door body 1 top is fixed with reinforcement neoprene plate 3 tops by bolt 6 and stainless steel press strip 7, when reinforcement neoprene plate 3 is closed, described reinforcement neoprene plate 3 contacts with body 2 exterior edge face sealings, and described reinforcement neoprene plate 3 upper ends have the arc groove 5 for self bending.
In such scheme, between described door body 1 top and reinforcement neoprene plate 3, be provided with dunnage 4, described dunnage 4 comprises holding part 4.1 and supporting section 4.2, described holding part 4.1 is fixed on a body 1 top by bolt 6 jointly with strengthening neoprene plate 3, and described supporting section 4.2 is arranged towards the true dip direction identical with body 2 exterior edge faces.
Integral body of the present invention can be installed on by the fixed hole 8 of door body edge on piping flange and wall, the opening and closing of strengthening neoprene door-plate are completed by the plastic deformation of rubber plate self completely, under the effect of positive flow, strengthening neoprene door-plate opens, forward does not have current or opens head when inadequate, strengthens neoprene door-plate in deadweight or oppositely closes under the effect of head and close.
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 (3)
1. a flexible door, comprise the door body that has runner, on the external wall of described door, be fixed with cylindrical tube, it is characterized in that: the longitudinal center cross section of described body is the long trapezium structure in short bottom, top, described body exterior edge face forms the runner mouth of inclination, described door body top is fixed by bolt and reinforcement neoprene plate top, when reinforcement neoprene plate is closed, described reinforcement neoprene plate contacts with the sealing of body exterior edge face, and described reinforcement neoprene plate upper end has the arc groove for self bending.
2. flexible door according to claim 1, it is characterized in that: between described door body top and reinforcement neoprene plate, be provided with dunnage, described dunnage comprises holding part and supporting section, described holding part is bolted on a body top jointly with strengthening neoprene plate, and described supporting section is arranged towards the true dip direction identical with body exterior edge face.
3. flexible door according to claim 1, is characterized in that: fixing outside, Yu Menti top, described reinforcement neoprene plate top is provided with stainless steel press strip, and described stainless steel press strip and reinforcement neoprene plate are bolted on a body top jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410306686.7A CN104121393A (en) | 2014-06-30 | 2014-06-30 | Flexible flap valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410306686.7A CN104121393A (en) | 2014-06-30 | 2014-06-30 | Flexible flap valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104121393A true CN104121393A (en) | 2014-10-29 |
Family
ID=51766934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410306686.7A Pending CN104121393A (en) | 2014-06-30 | 2014-06-30 | Flexible flap valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104121393A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1076000A (en) * | 1953-04-21 | 1954-10-21 | Fully opening valve | |
| US4076047A (en) * | 1975-07-16 | 1978-02-28 | Nippon Oil Seal Industry Co., Ltd. | Reed valve |
| US4404982A (en) * | 1982-02-10 | 1983-09-20 | Bs&B Safety Systems, Ltd. | Rupturable pressure relief apparatus |
| US5285816A (en) * | 1991-12-11 | 1994-02-15 | Rapid Developments Ltd. | One way valve |
| CN202360820U (en) * | 2011-08-12 | 2012-08-01 | 李鉴明 | One-way valve for sucking from bottle |
| CN204004612U (en) * | 2014-06-30 | 2014-12-10 | 武汉圣禹排水系统有限公司 | Flexible door |
-
2014
- 2014-06-30 CN CN201410306686.7A patent/CN104121393A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1076000A (en) * | 1953-04-21 | 1954-10-21 | Fully opening valve | |
| US4076047A (en) * | 1975-07-16 | 1978-02-28 | Nippon Oil Seal Industry Co., Ltd. | Reed valve |
| US4404982A (en) * | 1982-02-10 | 1983-09-20 | Bs&B Safety Systems, Ltd. | Rupturable pressure relief apparatus |
| US5285816A (en) * | 1991-12-11 | 1994-02-15 | Rapid Developments Ltd. | One way valve |
| CN202360820U (en) * | 2011-08-12 | 2012-08-01 | 李鉴明 | One-way valve for sucking from bottle |
| CN204004612U (en) * | 2014-06-30 | 2014-12-10 | 武汉圣禹排水系统有限公司 | Flexible door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141029 |
|
| RJ01 | Rejection of invention patent application after publication |