CN212835711U - A water backflow prevention device - Google Patents
A water backflow prevention device Download PDFInfo
- Publication number
- CN212835711U CN212835711U CN202020443727.8U CN202020443727U CN212835711U CN 212835711 U CN212835711 U CN 212835711U CN 202020443727 U CN202020443727 U CN 202020443727U CN 212835711 U CN212835711 U CN 212835711U
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- CN
- China
- Prior art keywords
- funnel body
- elastic
- arc
- utility
- sewer
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- 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
本实用新型公开了一种下水防回流装置，其安装于下水弯管中，其包括上端敞口的弹性漏斗体，该漏斗体包括进水管和弹性贴合部，所述进水管的相对两侧壁向下逐渐收拢为扁平状，形成弹性贴合部，所述进水管包括与所述下水弯管进液口覆盖安装的环形放置部；本实用新型所述的下水防回流装置的漏斗体与弯管配合安装，拆装方便，便于清洗；本实用新型采用单向开槽的橡胶组件，直接放入到弯管中，只有从一侧有水流时橡胶才会开口，使用橡胶的张力进行密闭，有水流时，可自动张开，水流速度快，排水通畅，不易粘连杂质；无水流时则自动弹性闭合，防止臭气等从管道进入，也可防止污水上溢；本实用新型的结构简单合理，使用范围广。
The utility model discloses a sewer backflow prevention device, which is installed in a sewer elbow and comprises an elastic funnel body with an open upper end. The funnel body comprises a water inlet pipe and an elastic fitting part. The opposite sides of the water inlet pipe The wall is gradually folded downward into a flat shape to form an elastic fitting portion. The water inlet pipe includes an annular placement portion that is covered and installed with the liquid inlet of the sewer elbow; the funnel body of the sewer backflow prevention device of the utility model is connected to The elbow is fitted with the installation, easy to disassemble and clean; the utility model adopts a one-way slotted rubber component, which is directly put into the elbow, the rubber will open only when there is water flow from one side, and the tension of the rubber is used to seal it. , when there is water flow, it can be automatically opened, the water flow speed is fast, the drainage is smooth, and it is not easy to stick impurities; when there is no water flow, it is automatically closed elastically, preventing odors from entering the pipeline, and preventing sewage from overflowing; the structure of the utility model is simple Reasonable and widely used.
Description
Technical Field
The utility model relates to a sewage equipment technical field, especially a sewage anti-reflux device.
Background
The sewer backflow-preventing pipe bending device is a measure for preventing a main water pipe and an auxiliary water pipe from remaining to generate reverse water, can isolate a main water tank and an auxiliary water tank of a sewer, carries out innocent treatment, and effectively avoids the problem that when drainage of the main water tank is not smooth, water pipes connected can overflow into the auxiliary water tank. At present, most of the sewer backflow prevention devices form water seal by using bent pipe water storage or using an internal water storage structure of a floor drain, so that odor is prevented from overflowing. However, in dry weather, the water seal is dry, odor easily overflows and odor cannot be prevented, the water seal formed by the water storage structure easily obstructs water flow, water cannot be directly flushed and drained, the water flow speed is influenced, impurities are easily accumulated, and water cannot be easily cleaned and drained.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the to-be-solved technical problem of the utility model is to provide a offal anti-return device, solved anti-return device anti-return among the prior art and the harsh or poor problem of effect of deodorant condition.
The technical scheme is as follows: sewer backflow preventer, it is installed in sewer return bend, including the open elasticity funnel body in upper end, this funnel body includes inlet tube and elasticity laminating portion, the relative both sides wall of inlet tube draws in gradually downwards and is the platykurtic, forms elasticity laminating portion, the inlet tube include with the annular of sewer return bend inlet cover installation places the portion.
Further, comprising:
elasticity laminating portion includes relative first binding face and second binding face, first binding face and the elasticity laminating of second binding face, a plurality of exhaust holes have been seted up on first binding face and/or the second binding face.
Further, comprising:
the number of the exhaust holes is set to be 4-6.
Further, comprising:
the funnel comprises a funnel body and is characterized in that a first arc-shaped portion protruding into the funnel body is arranged between the placing portion and the first attaching face, and the first arc-shaped portion is connected with the first attaching face through a first connecting portion.
Further, comprising:
the funnel body is characterized in that a second arc-shaped part protruding towards the inside of the funnel body is arranged between the placing part and the second binding face, and the second arc-shaped part is connected with the second binding face through a second connecting part.
Further, comprising:
the length of the elastic attaching part is 25-50 mm.
Has the advantages that: (1) the funnel body of the drainage backflow preventing device is matched and installed with the bent pipe, so that the drainage backflow preventing device is convenient to disassemble and assemble and clean; (2) the utility model adopts the rubber component with one-way slot, which is directly put into the bent pipe, the rubber can be opened only when water flows from one side, the rubber is closed by using the tension of the rubber, the rubber can be automatically opened when water flows, the water flow speed is high, the drainage is smooth, and impurities are not easy to adhere; when no water flow exists, the valve is automatically and elastically closed, so that odor and the like are prevented from entering from a pipeline, and sewage can be prevented from overflowing; (3) the utility model has the advantages of simple and reasonable structure, application range is wide.
Drawings
FIG. 1 is a schematic structural view of the backflow prevention device of the present invention;
FIG. 2 is a cross-sectional view of the backflow device of the present invention;
FIG. 3 is a schematic view of the backflow preventer of the present invention in a position outside the trap;
fig. 4 is a sectional view of the backflow prevention device of the present invention when installed inside a downcomer pipe.
The figure includes: the funnel comprises a lower water bent pipe 10, a funnel body 1, a water inlet pipe 11, a placing part 111, a first arc-shaped part 112, a first connecting part 113, a second arc-shaped part 114, a second connecting part 115, an elastic attaching part 12 and an exhaust hole 123.
Detailed Description
The utility model discloses a launching backflow preventer, it is installed in launching return bend 10, as shown in fig. 1-4, it includes the open elasticity funnel body 1 in upper end, and the material that funnel body 1 adopted is rubber, and this funnel body 1 includes inlet tube 11 and elasticity laminating portion 12, and the relative both sides wall of inlet tube 11 draws in gradually downwards and is the platykurtic, forms elasticity laminating portion 12, and the length of the laminating of elasticity laminating portion 12 is 25 ~ 50 mm. Thus, the funnel 1 is a one-way slotted rubber assembly that opens only when there is water flow from one side.
The inlet tube 11 includes the annular portion 111 of placing that covers the installation with launching elbow 10 inlet, should place portion 111 and set up according to the inlet diameter of return bend, and its excircle diameter is greater than the inlet diameter of return bend, can directly put on the inlet of return bend, also can adopt other mounting means, fixes like modes such as draw-in groove and location muscle, the utility model discloses do not make the restriction to its concrete mounting means.
Besides the annular placing part 111, the water inlet pipe 11 further includes a first arc-shaped part 112, a first connecting part 113, a second arc-shaped part 114 and a second connecting part 115, wherein in this embodiment, the first arc-shaped part 112 and the second arc-shaped part 114 are oppositely disposed, the first connecting part and the second connecting part are oppositely disposed, the first arc-shaped part 112 is an arc-shaped surface disposed on the side where the placing part 111 and the first abutting surface 121 are located, the arc shape of the first arc-shaped part is convex toward the interior of the funnel body, the first arc-shaped part 112 and the first abutting surface 121 are connected and transitioned through the first connecting part 113, the second arc-shaped part 114 is disposed on the side where the placing part 111 and the second abutting surface 122 are located, the arc shape of the second arc-shaped part 114 is convex toward the interior of the funnel body, the second arc-shaped part 114 and the second abutting surface 122 are connected and transitioned through the second connecting part 115, the first arc-shaped part 112 and the second arc-shaped part 114, the water-saving valve has the function of buffering when water flows too much, and prevents a small amount of water from flowing back due to too much water pressure.
The elastic bonding portion 12 includes a first bonding surface 121 and a second bonding surface 122 opposite to each other, the first bonding surface 121 and the second bonding surface 122 are elastically bonded to each other, a plurality of vent holes 123 are formed in the first bonding surface 121 or the second bonding surface 122, or both the first bonding surface and the second bonding surface can be formed with a plurality of vent holes 123. The number of the exhaust holes 123 can be set to 4 to 6 according to the length of the attaching portion.
The utility model discloses an operating principle is, the utility model discloses utilize the deformability of rubber, when water flows in from the uncovered end of funnel body 1, elasticity laminating portion 12 is automatic opens directly in the line, and when anhydrous rivers or rivers are less, elasticity laminating portion 12 is closed by oneself.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020443727.8U CN212835711U (en) | 2020-03-31 | 2020-03-31 | A water backflow prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020443727.8U CN212835711U (en) | 2020-03-31 | 2020-03-31 | A water backflow prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212835711U true CN212835711U (en) | 2021-03-30 |
Family
ID=75113498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020443727.8U Expired - Fee Related CN212835711U (en) | 2020-03-31 | 2020-03-31 | A water backflow prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212835711U (en) |
-
2020
- 2020-03-31 CN CN202020443727.8U patent/CN212835711U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20210330 |