CN220080238U - Drain pipe backflow preventer - Google Patents
Drain pipe backflow preventer Download PDFInfo
- Publication number
- CN220080238U CN220080238U CN202321116056.4U CN202321116056U CN220080238U CN 220080238 U CN220080238 U CN 220080238U CN 202321116056 U CN202321116056 U CN 202321116056U CN 220080238 U CN220080238 U CN 220080238U
- Authority
- CN
- China
- Prior art keywords
- drain pipe
- pipe
- floating ball
- drain
- backflow preventer
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000002344 surface layer Substances 0.000 claims description 2
- 239000010865 sewage Substances 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008719 thickening Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
The utility model relates to a backflow preventer for a drain pipe, which comprises a round pipe-shaped upper drain pipe, a round table-shaped connecting pipe, a round pipe-shaped lower drain pipe, a floating ball and a floating ball interception net, wherein the lower opening of the upper drain pipe is inserted into the connecting pipe, the top end of the connecting pipe is fixedly connected with the outer side wall of the upper drain pipe, the top end of the lower drain pipe is fixedly connected with the bottom end of the connecting pipe, the floating ball interception net is fixedly arranged at the bottom end of the lower drain pipe, and the floating ball is arranged in the lower drain pipe. The beneficial effects are that: the backflow preventer is arranged at the outlet end of the outlet drain pipe, and the floating ball is arranged on the floating ball interception net during normal drainage; when municipal drainage is unsmooth or rainwater volume is big, sewage or rainwater make the floater float, and the bottom butt of floater and last drain pipe to utilize the floater to block up the bottom of going up the drain pipe, prevent sewage or rainwater to flow backward to indoor.
Description
Technical Field
The utility model relates to the field of building drainage facilities, in particular to a drain pipe backflow preventer.
Background
At present, most of the drainage outlet pipes of the building are directly connected to an outdoor inspection well, and no measures for preventing the drainage from flowing backwards are taken.
The following problems often occur: when outdoor municipal drainage is not smooth, sewage and wastewater in the municipal drainage well flows back to the room through the household drainage pipe; and (II) when the rain water quantity of the outdoor roof is overlarge and the water surface in the outdoor drainage tank is higher than the bottom of the outdoor drainage pipe of the roof machine room, the rain water flows back to the room through the outdoor drainage pipe.
Disclosure of Invention
The utility model aims to overcome the problems existing in the prior art and provide a backflow preventer for a drain pipe.
In order to achieve the technical purpose and the technical effect, the utility model is realized by the following technical scheme: the utility model provides a drain pipe backflow preventer, includes the last drain pipe of pipe shape, round platform side shape's connecting pipe, the lower drain pipe of pipe shape, floater interception net, go up the lower mouth of drain pipe and insert in the connecting pipe, and the top of connecting pipe and the lateral wall rigid coupling of last drain pipe, the top of lower drain pipe and the bottom rigid coupling of connecting pipe, floater interception net fixed mounting is in the bottom of drain pipe down, the floater is adorned in the drain pipe down.
At least one side drain pipe is fixedly connected to the side wall of the upper portion of the lower drain pipe, and the side drain pipe is inclined downwards.
Wherein, the surface of floater cladding one deck ball shell shape rubber surface course.
The beneficial effects of the utility model are as follows: the backflow preventer is arranged at the outlet end of the outlet drain pipe, and the floating ball is arranged on the floating ball interception net during normal drainage; when municipal drainage is unsmooth or rainwater volume is big, sewage or rainwater make the floater float, and the bottom butt of floater and last drain pipe to utilize the floater to block up the bottom of going up the drain pipe, prevent sewage or rainwater to flow backward to indoor.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
fig. 1 is a schematic perspective view of a first view of a backflow preventer according to a first embodiment of the present utility model;
fig. 2 is a schematic perspective view of a second view of the backflow preventer according to the first embodiment of the present utility model;
fig. 3 is a sectional view of a backflow preventer according to a first embodiment of the present utility model;
FIG. 4 is a schematic view of a connection structure between a backflow preventer and an outlet drain pipe in accordance with a first embodiment of the present utility model;
fig. 5 is a schematic perspective view of a backflow preventer according to a second embodiment of the present utility model;
FIG. 6 is a cross-sectional view of a backflow preventer in accordance with a second embodiment of the present utility model;
FIG. 7 is a schematic diagram of a connection between a backflow preventer and an outlet drain pipe in a second embodiment of the present utility model;
the reference numerals in the figures illustrate: backflow preventer 100, upper drain pipe 1, connecting pipe 2, lower drain pipe 3, floating ball 4, floating ball interception net 5, side drain pipe 6, rubber seal 7, rubber surface layer 8, first flange 9, thickening 10, fastener 200, outlet drain pipe 300, second flange 301.
Detailed Description
The utility model will be described in detail below with reference to the drawings in combination with embodiments.
As shown in fig. 1 to 4, in the first embodiment, a backflow preventer for drain pipes, wherein the backflow preventer 100 comprises a circular tube-shaped upper drain pipe 1, a circular table-shaped connecting pipe 2, a circular tube-shaped lower drain pipe 3, a floating ball 4 and a floating ball interception net 5, wherein the lower opening of the upper drain pipe 1 is inserted into the connecting pipe 2, the top end of the connecting pipe 2 is fixedly connected with the outer side wall of the upper drain pipe 1, the top end of the lower drain pipe 3 is fixedly connected with the bottom end of the connecting pipe 2, the floating ball interception net 5 is fixedly installed at the bottom end of the lower drain pipe 3, and the floating ball 4 is installed in the lower drain pipe 3; the inner diameter of the lower drain pipe 3 is larger than the diameter of the floating ball 4, and the diameter of the floating ball 4 is larger than the outer diameter of the upper drain pipe 1.
At least one side drain pipe 6 is fixedly connected to the upper side wall of the lower drain pipe 3, the side drain pipe 6 is inclined downwards, the inclination angle of the side drain pipe 6 is equal to that of a bus of the connecting pipe 2, and the side drain pipe 6 improves drainage efficiency.
The rubber sealing ring 7 is installed at the bottom of last drain pipe 1, and the difference in height between the bottom of rubber sealing ring 7 and the floater interception net 5 top is greater than the diameter of floater 4, and the rubber surface course 8 of one deck spherical shell shape is covered to floater 4 surface, and the leakproofness when rubber sealing ring 7 and rubber surface course 8 improve floater 4 and last drain pipe 1 bottom butt.
The top of the upper drain pipe 1 is in threaded connection with the bottom of the household drain pipe 300, and the backflow preventer is positioned in an outdoor drain tank or a municipal drain well, and when water is normally drained, the liquid level in the outdoor drain tank or the municipal drain well is lower than the bottom of the backflow preventer, a floating ball falls on a floating ball interception net, and the backflow preventer normally drains water; when municipal drainage is unsmooth or rainwater volume is big, the liquid level in outdoor water drainage tank or the municipal drainage well is higher than this backflow preventer's lower drain pipe, and sewage or rainwater make the floater float, and the bottom butt of floater and last drain pipe to utilize the floater to block up the bottom of going up the drain pipe, prevent sewage or rainwater to flow backward to indoor.
As shown in fig. 5 to 7, in a second embodiment, a backflow preventer for drain pipes, wherein the backflow preventer 100 comprises a circular tube-shaped upper drain pipe 1, a circular table-shaped connecting pipe 2, a circular tube-shaped lower drain pipe 3, a floating ball 4 and a floating ball interception net 5, wherein the lower opening of the upper drain pipe 1 is inserted into the connecting pipe 2, the top end of the connecting pipe 2 is fixedly connected with the outer side wall of the upper drain pipe 1, the top end of the lower drain pipe 3 is fixedly connected with the bottom end of the connecting pipe 2, the floating ball interception net 5 is fixedly installed at the bottom end of the lower drain pipe 3, and the floating ball 4 is installed in the lower drain pipe 3; the inner diameter of the lower drain pipe 3 is larger than the diameter of the floating ball 4, and the diameter of the floating ball 4 is larger than the outer diameter of the upper drain pipe 1.
At least one side drain pipe 6 is fixedly connected to the upper side wall of the lower drain pipe 3, the side drain pipe 6 is inclined downwards, the inclination angle of the side drain pipe 6 is equal to that of a bus of the connecting pipe 2, and the side drain pipe 6 improves drainage efficiency.
The rubber sealing ring 7 is installed at the bottom of last drain pipe 1, and the difference in height between the bottom of rubber sealing ring 7 and the floater interception net 5 top is greater than the diameter of floater 4, and the rubber surface course 8 of one deck spherical shell shape is covered to floater 4 surface, and the leakproofness when rubber sealing ring 7 and rubber surface course 8 improve floater 4 and last drain pipe 1 bottom butt.
The top end of the upper drain pipe 1 is fixedly connected with a first flange 9, a thickening part 10 is arranged between the bottom end of the first flange 9 and the outer side of the upper drain pipe, the thickening part improves the connection firmness of the first flange and the upper drain pipe, and the first flange 9 is connected with a second flange 301 at the bottom end of the outlet drain pipe 300 by using a fastener 200.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (8)
1. A drain pipe backflow preventer which is characterized in that: the floating ball type water draining pipe comprises a round pipe-shaped upper draining pipe, a round table-shaped connecting pipe, a round pipe-shaped lower draining pipe, a floating ball and a floating ball interception net, wherein the lower opening of the upper draining pipe is inserted into the connecting pipe, the top end of the connecting pipe is fixedly connected with the outer side wall of the upper draining pipe, the top end of the lower draining pipe is fixedly connected with the bottom end of the connecting pipe, the floating ball interception net is fixedly arranged at the bottom end of the lower draining pipe, and the floating ball is arranged in the lower draining pipe.
2. The drain backflow preventer of claim 1, wherein: at least one side drain pipe is fixedly connected to the side wall of the upper part of the lower drain pipe, and the side drain pipe is inclined downwards.
3. The drain backflow preventer of claim 2, wherein: the inclination angle of the side drain pipe is equal to the inclination angle of the bus bar of the connecting pipe.
4. The drain backflow preventer of claim 1, wherein: the inner diameter of the lower drain pipe is larger than the diameter of the floating ball, and the diameter of the floating ball is larger than the outer diameter of the upper drain pipe.
5. The drain backflow preventer of claim 1, wherein: the bottom of the upper drain pipe is provided with a rubber sealing ring, and the height difference between the bottom of the rubber sealing ring and the top of the floating ball interception net is larger than the diameter of the floating ball.
6. The drain backflow preventer of claim 5, wherein: the outer surface of the floating ball is coated with a spherical shell-shaped rubber surface layer.
7. The drain backflow preventer of claim 1, wherein: the top of the upper drain pipe is in threaded connection with the bottom of the outlet drain pipe.
8. The drain backflow preventer of claim 1, wherein: the top end of the upper drain pipe is fixedly connected with a first flange, and the first flange is connected with a second flange at the bottom end of the household drain pipe by using a fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321116056.4U CN220080238U (en) | 2023-05-09 | 2023-05-09 | Drain pipe backflow preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321116056.4U CN220080238U (en) | 2023-05-09 | 2023-05-09 | Drain pipe backflow preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220080238U true CN220080238U (en) | 2023-11-24 |
Family
ID=88820298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321116056.4U Active CN220080238U (en) | 2023-05-09 | 2023-05-09 | Drain pipe backflow preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220080238U (en) |
-
2023
- 2023-05-09 CN CN202321116056.4U patent/CN220080238U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |