CN220225656U - Drainage pipe backflow preventing structure - Google Patents
Drainage pipe backflow preventing structure Download PDFInfo
- Publication number
- CN220225656U CN220225656U CN202321761708.XU CN202321761708U CN220225656U CN 220225656 U CN220225656 U CN 220225656U CN 202321761708 U CN202321761708 U CN 202321761708U CN 220225656 U CN220225656 U CN 220225656U
- Authority
- CN
- China
- Prior art keywords
- drainage
- cavity
- groove
- preventing structure
- backflow preventing
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 2
- 239000010865 sewage Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The backflow preventing structure of the drainage pipeline comprises a bottom connecting part communicated with the drainage pipeline, wherein an expansion cavity is formed in the bottom connecting part, a top delivery pipe is arranged at the top of the expansion cavity, a drainage cavity is formed in the top of the top delivery pipe, and a drainage plate is arranged on the drainage cavity; the expansion cavity is internally provided with a plugging ball, the bottom of the top eduction tube is provided with an arc-shaped abutting ring, and the arc-shaped abutting ring is in sealing abutting connection with the plugging ball. This application adopts the mode that sets up the enlarged cavity, when inwards discharging from the drainage board, can be convenient put into drainage pipe with the water at top in the middle of, and when the water yield is too big in drainage pipe, the shutoff ball can block up top delivery tube to the effectual overflow that avoids.
Description
Technical Field
The application relates to a drainage pipeline backflow preventing structure.
Background
The existing pipelines for discharging rainwater are generally buried in the ground and are connected with an external sewage discharge port, a manhole and the like, when the novel sewage drainage pipeline is used at present, a screen is generally arranged on a discharge channel of the manhole, foreign matters flowing into the manhole along with rainwater are filtered by the screen and then are discharged into the drainage pipeline, and floating balls are arranged in a circulation channel, if water does not enter, the floating balls can block the discharge channel, so that odor and pests are prevented from escaping from the manhole. However, the device cannot cope with heavy rain, after the pipeline is filled with water, the floating ball is ejected by rainwater, after the floating ball is ejected, the rainwater enters the manhole or the sewage discharge port and overflows to the ground, so that the sewage discharge port and the manhole form a ponding position.
Disclosure of Invention
In order to solve the above problems, the present application proposes a backflow preventing structure of a drainage pipeline, comprising a bottom connecting portion communicated with the drainage pipeline, an expansion cavity is arranged on the bottom connecting portion, a top delivery pipe is arranged at the top of the expansion cavity, a drainage cavity is arranged at the top of the top delivery pipe, and a drainage plate is arranged on the drainage cavity; the expansion cavity is internally provided with a plugging ball, the bottom of the top eduction tube is provided with an arc-shaped abutting ring, and the arc-shaped abutting ring is in sealing abutting connection with the plugging ball. This application adopts the mode that sets up the enlarged cavity, when inwards discharging from the drainage board, can be convenient put into drainage pipe with the water at top in the middle of, and when the water yield is too big in drainage pipe, the shutoff ball can block up top delivery tube to the effectual overflow that avoids.
Preferably, the discharge chamber includes a bottom groove at the bottom and an upper groove at the upper part, the bottom groove having a cross-sectional area gradually increasing from the bottom to the top, and the upper groove having a cross-sectional area gradually decreasing from the bottom to the top; the inner side surfaces of the bottom groove and the upper groove are arc-shaped surfaces. The utility model provides a discharge cavity adopts the lower part to suddenly change, and the mode of upper portion slowly changes for no matter be falling of water level or rising of water level, can both guarantee the sensitivity of operation, and when shutoff to the top, owing to be slowly changing the setting, the location is more accurate, avoids the emergence of overflow phenomenon.
Preferably, the height of the upper groove is 3-5 times the height of the bottom groove.
Preferably, the bottom connecting part comprises a bottom pipeline fixedly connected with the expansion cavity, an upper connecting flange is arranged at the bottom of the bottom pipeline, a lower connecting flange is arranged at the position of the drainage pipeline facing the upper connecting flange, and the upper connecting flange and the lower connecting flange are fixedly connected through connecting bolts.
Preferably, the plugging ball is a rubber hollow ball with the integral relative density of 0.7-0.9.
Preferably, a top annular groove is formed in the top of the discharge cavity, and the periphery of the water filtering plate is clamped in the top annular groove.
Preferably, the bottom of the water filtering plate is provided with an annular groove, and the top of the discharge cavity is provided with an annular clamping plate matched with the annular groove. The mode that this application adopted annular groove and annular joint board cooperation to set up has guaranteed the stability after the location of drainage board and the location.
The application can bring the following beneficial effects:
1. this application adopts the mode that sets up the enlarged cavity, when inwards discharging from the drainage board, can be convenient put into drainage pipe with the water at top in the middle of, and when the water yield is too big in drainage pipe, the shutoff ball can block up top delivery tube to the effectual overflow that avoids.
2. The utility model provides a discharge cavity adopts the lower part to suddenly change, and the mode of upper portion slowly changes for no matter be falling of water level or rising of water level, can both guarantee the sensitivity of operation, and when shutoff to the top, owing to be slowly changing the setting, the location is more accurate, avoids the emergence of overflow phenomenon.
3. The mode that this application adopted annular groove and annular joint board cooperation to set up has guaranteed the stability after the location of drainage board and the location.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a schematic diagram of the structure during rainfall;
FIG. 3 is a schematic view of the structure of the anti-overflow valve.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present application will be described in detail below with reference to the following detailed description and the accompanying drawings.
In a first embodiment, as shown in fig. 1-3, a drainage pipeline backflow preventing structure comprises a bottom connecting part 2 communicated with a drainage pipeline 1, an expansion cavity 3 is arranged on the bottom connecting part 2, a top delivery pipe 4 is arranged at the top of the expansion cavity 3, a drainage cavity 5 is arranged at the top of the top delivery pipe 4, and a drainage plate 6 is arranged on the drainage cavity 5; a plugging ball 7 is arranged in the expansion cavity 3, an arc-shaped abutting ring 8 is arranged at the bottom of the top eduction tube 4, and the arc-shaped abutting ring 8 is arranged in sealing abutting connection with the plugging ball 7.
When in use, during rainfall, rainwater enters the drainage cavity 5 from the water filtering plate 6, enters the top delivery pipe 4 from the drainage cavity 5, is then guided into the expansion cavity 3, flows through the plugging balls 7, flows into the bottom connecting part 2 due to the low density of the plugging balls 7, and then enters the drainage pipeline 1; when the water volume in the drainage pipeline 1 is too high, the plugging ball 7 is abutted to the top delivery pipe 4, and the highest position is abutted to the top delivery pipe 4 to seal the top delivery pipe 4, so that overflow is avoided.
In a second embodiment, as shown in fig. 1-3, a drainage pipeline backflow preventing structure comprises a bottom connecting part 2 communicated with a drainage pipeline 1, an expansion cavity 3 is arranged on the bottom connecting part 2, a top delivery pipe 4 is arranged at the top of the expansion cavity 3, a drainage cavity 5 is arranged at the top of the top delivery pipe 4, and a drainage plate 6 is arranged on the drainage cavity 5; a plugging ball 7 is arranged in the expansion cavity 3, an arc-shaped abutting ring 8 is arranged at the bottom of the top eduction tube 4, and the arc-shaped abutting ring 8 is in sealing abutting connection with the plugging ball 7. The discharge chamber 5 includes a bottom groove 9 at the bottom and an upper groove 10 at the upper part, the bottom groove 9 having a cross-sectional area gradually increasing from the bottom to the top, and the upper groove 10 having a cross-sectional area gradually decreasing from the bottom to the top; the inner side surfaces of the bottom groove 9 and the upper groove 10 are arc surfaces. The height of the upper groove 10 is 3-5 times the height of the bottom groove 9. The bottom connecting part 2 comprises a bottom pipeline 11 fixedly connected with the expansion cavity 3, an upper connecting flange 12 is arranged at the bottom of the bottom pipeline 11, a lower connecting flange 14 is arranged at the position of the drainage pipeline 1 facing the upper connecting flange 12, and the upper connecting flange 12 and the lower connecting flange 14 are fixedly connected through connecting bolts 15. The plugging ball 7 is a rubber hollow ball with the integral relative density of 0.7-0.9. A top annular groove 16 is arranged at the top of the discharge cavity 5, and the periphery of the water filtering plate 6 is clamped and arranged in the top annular groove 16. The bottom of the water filtering plate 6 is provided with an annular groove 17, and the top of the discharge cavity 5 is provided with an annular clamping plate matched with the annular groove 17.
When in use, during rainfall, rainwater enters the drainage cavity 5 from the water filtering plate 6, enters the top delivery pipe 4 from the drainage cavity 5, is then guided into the expansion cavity 3, flows through the plugging balls 7, flows into the bottom connecting part 2 due to the low density of the plugging balls 7, and then enters the drainage pipeline 1; when the water quantity in the drainage pipeline 1 is too high, the plugging ball 7 is abutted, when the water quantity is not high, the sealing ball is positioned between the upper groove 10 and the bottom groove 9, and the highest sealing ball is abutted to the arc-shaped abutting ring 8, so that the top delivery pipe 4 can be sealed finally, and the final rainwater overflow is avoided.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (7)
1. The utility model provides a drainage pipe backflow prevention structure which characterized in that: the drainage device comprises a bottom connecting part which is communicated with a drainage pipeline, wherein an expansion cavity is arranged on the bottom connecting part, a top delivery pipe is arranged at the top of the expansion cavity, a drainage cavity is arranged at the top of the top delivery pipe, and a drainage plate is arranged on the drainage cavity; the expansion cavity is internally provided with a plugging ball, the bottom of the top eduction tube is provided with an arc-shaped abutting ring, and the arc-shaped abutting ring is in sealing abutting connection with the plugging ball.
2. The drainage pipe backflow preventing structure according to claim 1, wherein: the discharging cavity comprises a bottom groove at the bottom and an upper groove at the upper part, the cross section area of the bottom groove is gradually increased from bottom to top, and the cross section area of the upper groove is gradually decreased from bottom to top; the inner side surfaces of the bottom groove and the upper groove are arc-shaped surfaces.
3. The drainage pipe backflow preventing structure according to claim 2, wherein: the height of the upper groove is 3-5 times of the height of the bottom groove.
4. The drainage pipe backflow preventing structure according to claim 1, wherein: the bottom connecting portion comprises a bottom pipeline fixedly connected with the expansion cavity, an upper connecting flange is arranged at the bottom of the bottom pipeline, a lower connecting flange is arranged at the position, facing the upper connecting flange, of the drainage pipeline, and the upper connecting flange and the lower connecting flange are fixedly connected through connecting bolts.
5. The drainage pipe backflow preventing structure according to claim 1, wherein: the plugging ball is a rubber hollow ball with the integral relative density of 0.7-0.9.
6. The drainage pipe backflow preventing structure according to claim 1, wherein: the top of the discharge cavity is provided with a top annular groove, and the periphery of the water filtering plate is clamped and arranged in the top annular groove.
7. The drainpipe backflow prevention structure according to claim 6, wherein: the bottom of drainage board is provided with the annular groove, is provided with the annular joint board that sets up with the annular groove cooperation at the top of discharging the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321761708.XU CN220225656U (en) | 2023-07-06 | 2023-07-06 | Drainage pipe backflow preventing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321761708.XU CN220225656U (en) | 2023-07-06 | 2023-07-06 | Drainage pipe backflow preventing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220225656U true CN220225656U (en) | 2023-12-22 |
Family
ID=89182912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321761708.XU Active CN220225656U (en) | 2023-07-06 | 2023-07-06 | Drainage pipe backflow preventing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220225656U (en) |
-
2023
- 2023-07-06 CN CN202321761708.XU patent/CN220225656U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220225656U (en) | Drainage pipe backflow preventing structure | |
| CN211257242U (en) | Prevent flowing backward municipal administration well lid | |
| CN208792438U (en) | A kind of double standpipes band water seal is from ventilation draining sub-assembly | |
| CN102127920A (en) | Waterlogging draining method between floors | |
| CN108179802A (en) | A kind of bottom-open type Auto-drainage well lid | |
| CN201351811Y (en) | Gas-leakage preventive device for gas conduit drainer | |
| CN215669957U (en) | Basement car ramp antiseep structure | |
| CN206385741U (en) | A kind of siphon drainge system for building | |
| CN209941803U (en) | Drainage and water leakage flow guider | |
| CN209603264U (en) | Inlet for stom water with function of shutting off | |
| CN212896746U (en) | Same-floor drainage water seal double-channel overflow floor drain | |
| CN210507607U (en) | Environment-friendly rainwater collection device for hydraulic engineering | |
| CN210263319U (en) | Siphon type rainwater pipe terminal control device | |
| CN211421337U (en) | Highway fill section prevention of seepage drainage system and hollow joint thereof | |
| CN212715252U (en) | Anti-overflow underwater water pipeline | |
| CN112761236A (en) | Emergency disposal device for waterlogging and disposal method using device | |
| CN208202677U (en) | A kind of biological purifying environmental protection type movable public lavatory | |
| CN201003023Y (en) | Concrete septic tank | |
| CN220521537U (en) | Device for siphon drainage, drainage pipe fitting and siphon drainage system | |
| CN214695983U (en) | Emergency handling device for waterlogging | |
| CN205369736U (en) | A device that leaks for roof launchs | |
| CN216892706U (en) | Floating adjustment weir plate intercepting well | |
| CN212742795U (en) | Drainage pipeline prevents flowing backward device | |
| CN216142144U (en) | Floor drain against overflow | |
| CN221219037U (en) | A draw row device for irregular leakage point of hydraulic building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |