CN113818540B - Connecting device and connecting process for prefabricated inspection well and concrete pipeline - Google Patents
Connecting device and connecting process for prefabricated inspection well and concrete pipeline Download PDFInfo
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- CN113818540B CN113818540B CN202111132470.XA CN202111132470A CN113818540B CN 113818540 B CN113818540 B CN 113818540B CN 202111132470 A CN202111132470 A CN 202111132470A CN 113818540 B CN113818540 B CN 113818540B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
- E03F5/021—Connection of sewer pipes to manhole shaft
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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Abstract
The invention belongs to the technical field of connection of prefabricated inspection wells and pipelines, and particularly relates to a prefabricated inspection well and concrete pipeline connection template and a connection process. According to the process, the drainage pipeline is connected with the inspection well through the connecting template, the traditional mode of plugging concrete into the connection position is changed, the inner wall of the reserved hole of the inspection well is provided with an embedded groove and is subjected to roughening treatment, a water-swelling water stop strip is arranged in the embedded groove, and the drainage pipeline subjected to roughening treatment can be contacted with the water-swelling water stop strip after extending into the reserved hole; pouring micro-expansion concrete into the pouring groove through the pouring hopper, enabling the concrete to flow in the reserved hole and fill the reserved hole and the horn pipe, compacting gaps between the concrete and the pipeline by self-expansion force after the water-expansion water stop bar contacts with the concrete, playing a water stopping role, fixing the pipeline after the concrete is solidified, enabling the gaps to be poured tightly, guaranteeing construction quality of connection between the inspection well and the pipeline, avoiding water seepage phenomenon, reducing reworking repair and saving construction cost.
Description
Technical Field
The invention belongs to the technical field of connection of prefabricated inspection wells and pipelines, and particularly relates to a prefabricated inspection well and concrete pipeline connection template and a connection process.
Background
In the conventional construction of concrete at the joint of a precast concrete inspection well and a pipeline, no template is arranged, and concrete is manually plugged into the joint of the pipeline and the inspection well so that the pipeline can be connected with the inspection well. However, this kind of connected mode easily causes the concrete of junction not closely knit, the phenomenon appears empty drum, and easily cause the pollution to pipeline and inspection shaft moreover, especially in construction lower part junction, because operating space is less, the workman often is difficult to be under construction, and because the manual filling is difficult to control the position centering of pipeline and inspection shaft, cause junction concrete uneven distribution, it is incompact to cause the concrete placement to appear here more easily, concrete itself also has fluidity, often cause concrete loss in the outside easily, the later stage still needs the secondary to repair, cause the waste of manpower, material, and construction quality is difficult to guarantee, the infiltration phenomenon appears in the later stage, cause environmental pollution, but also can influence road construction quality.
Disclosure of Invention
Aiming at the defects and problems that the connection between a prefabricated inspection well and a concrete pipeline is not compact and the pipeline and the inspection well are easy to pollute due to the fact that concrete is filled between the prefabricated inspection well and the concrete pipeline at present, the invention provides a device and a process for connecting the prefabricated inspection well and the concrete pipeline.
The invention solves the technical problems by adopting the scheme that: the utility model provides a prefabricated inspection shaft and drainage pipe connecting device, includes inspection shaft, drainage pipe and coupling mechanism, and the bottom of inspection shaft is equipped with the inspection shaft well seat, has seted up penetrating preformed hole on the wall of a well above the inspection shaft well seat, has seted up the embedded recess of round on the preformed hole inner circle wall (along inner circle central line), is provided with the water expansion sealing ring in the embedded recess, the proximal end of drainage pipe stretches into in the preformed hole and contacts with the water expansion sealing strip; the connecting mechanism comprises a horn connecting pipe, a pouring hopper and a fastening piece, wherein the horn connecting pipe comprises a horn mouth and a connecting pipe, the connecting pipe is sleeved at the near end of the drainage pipeline, so that the horn mouth can be arranged at a reserved mouth of the inspection well and can be tightly attached to the outer wall of the inspection well, a pouring groove is formed between the inner cavity of the horn mouth and the reserved hole, and the pouring groove is communicated with the pouring hopper; a feed inlet is formed in the top of the bell mouth, and a guide hopper is positioned on the feed inlet and is in butt joint with the feed inlet; after the proximal end of the drain pipe extends into the reserved hole, the fastener is fastened outside the sleeve and the drain pipe to fix the sleeve and the drain pipe.
The prefabricated inspection well and drainage pipeline connecting device comprises two butted half rings, wherein the inner wall of each butted half ring is provided with an annular boss protruding out of a butted half ring body, one side of each annular boss is flush with one end of each butted half ring, the other side of each annular boss is flush with the circumferential center line of the inner wall of each butted half ring, and the thickness of each annular boss is the same as that of the horn connecting pipe sleeve; and the top and the bottom of the two docking rings are respectively provided with a docking seat, and fastening bolts are arranged in the docking seats in a penetrating way to connect the top and the bottom of the two docking semi-rings.
Foretell prefabricated inspection shaft and drainage pipe connecting device, loudspeaker connecting pipe and fall the hopper and be stainless steel material, wherein loudspeaker pipe and sleeve pipe body coupling, guide hopper and loudspeaker pipe body coupling.
The connecting device of the prefabricated inspection well and the drainage pipeline is characterized in that anti-skid patterns are arranged on the inner wall surface of the annular boss, and the anti-skid patterns are convex patterns or concave patterns.
The prefabricated inspection well and drainage pipeline connecting device is characterized in that the dumping hopper is dustpan-shaped, and one surface of the dumping hopper, which is in contact with the inspection well, is a cambered surface which can be tightly attached to the outer wall of the inspection well.
The invention also provides a process for connecting the prefabricated inspection well and the concrete pipeline, which comprises the steps of extending the proximal end of the drain pipe into the reserved hole, and then connecting the inspection well and the drain pipe by utilizing a prefabricated inspection well and concrete pipeline connecting template; the connecting template comprises a horn connecting pipe, a diversion trench and a fastening piece, wherein the horn connecting pipe comprises a horn mouth and a connecting pipe, the connecting pipe is sleeved at the near end of the drainage pipeline, so that the horn mouth can be arranged at the reserved mouth of the inspection well and can be tightly attached to the outer wall of the inspection well, and a pouring slot is formed between the inner cavity of the horn mouth and the reserved hole; a feed inlet is formed in the top of the bell mouth, and the guide hopper is positioned on the feed inlet and is in butt joint with the feed inlet; after the proximal end of the drain pipe penetrates into the reserved hole, the fastener is fastened outside the sleeve and the drain pipe to fix the sleeve and the drain pipe;
the connection process comprises the following steps:
s1, forming a through preformed hole in a well wall above a manhole seat for later installation of a drain pipe, and measuring and recording the wall thickness of a manholetA circle of embedded groove is formed on the inner ring wall of the preformed hole along the center line of the inner ring of the preformed hole, and the groove width of the embedded groovew=0.2t-0.25tThe depth of the embedded groove is 20-25mm;
s2, pressing a water-swelling water stop strip into the embedded groove, wherein the width of the water stop strip is not smaller than the groove width of the embedded groove, and the thickness of the water stop strip is not smaller than the groove depth of the embedded groove;
s3, roughening the wall surface of the inner ring of the preformed hole, wherein the roughening area is the position of the inner ring of the preformed hole for removing the groove;
s4, sleeving a sleeve of the horn connecting pipe on the outer side of the near end of the drainage pipeline, and then roughening the pipeline along the circumference of the outer wall of the pipeline on the outer wall of the near end of the drainage pipeline;
s5, extending the proximal end of the drainage pipeline into the reserved hole to enable the roughening position of the pipeline to correspond to the roughening position of the inner ring wall surface of the reserved hole of the inspection well, and supporting a supporting frame at the distal end of the drainage pipeline; then pushing the bell mouth of the bell-mouthed connecting pipe towards the wall of the inspection well, so that the bell mouth is tightly attached to the outer wall of the inspection well around the reserved hole;
s6, fastening the sleeve with the drainage pipeline by using a pipeline fastener, and forming a pouring slot between the inner cavity of the bell mouth and the reserved hole;
s7, gradually pouring micro-expansion concrete into the pouring hopper to enable the micro-expansion concrete to enter the pouring tank through the feeding hole, and knocking the bell mouth to vibrate the concrete in the pouring tank until the concrete is filled densely.
The invention has the beneficial effects that:
according to the invention, the drainage pipeline is connected with the inspection well through the connecting template, so that the traditional mode of plugging concrete into the connection position is changed, the inner wall of the reserved hole of the inspection well is provided with the embedded groove and is subjected to roughening treatment, the water-swelling water stop strip is arranged in the embedded groove, and the drainage pipeline subjected to roughening treatment can be contacted with the water-swelling water stop strip after extending into the reserved hole; pouring micro-expansion concrete into the bell mouth through the pouring hopper, enabling the concrete to flow in the reserved hole and to fill the reserved hole and the bell pipe, enabling the water-expansion water stop ring to completely play a role in stopping water by self-expansion and compaction of gaps between the concrete and the pipeline when the water-expansion water stop ring contacts with the concrete, fixing the pipeline after the concrete is solidified, enabling concrete pouring to be compact, guaranteeing concrete construction quality of the inspection well and the pipeline connection, avoiding water seepage, reducing reworking and repairing, and saving construction cost.
The template connecting mechanism designed by the invention is simple to operate and quick to construct, can greatly improve the construction period of connecting the pipeline with the inspection well, has high practicability, is convenient for workers to work, and is convenient for the workers to use.
According to the invention, the two butt joint seats are connected and fixed by using the bolts, and then the pipeline can be supported and fixed by the two butt joint semi-rings, so that the pipeline can be prevented from sliding, and meanwhile, the anti-skid patterns are arranged in the butt joint semi-rings, so that the pipeline can be further ensured not to slide in the construction process, and the construction quality is ensured.
Drawings
FIG. 1 is a schematic diagram of a prefabricated manhole and concrete pipeline connecting device according to the present invention.
FIG. 2 is a schematic cross-sectional view of a prefabricated manhole and concrete pipeline connecting device.
FIG. 3 is a schematic view of a connection template according to the present invention.
FIG. 4 is a schematic view of the structure of the fastener of the present invention.
Reference numerals in the drawings: 1 is an inspection well, 2 is an inspection well base, 3 is a preformed hole, 4 is a drainage pipeline, 5 is a pouring hopper, 6 is a connecting template, 61 is a butt joint base, 62 is a butt joint semi-ring I, 63 is a butt joint semi-ring II, 64 is a semi-ring boss, 65 is a fastening bolt, 7 is a water expansion water stop strip, 8 is a horn connecting pipe, 9 is a horn mouth, 10 is a connecting sleeve, and 11 is an embedded groove.
Detailed Description
The invention will be further described with reference to the drawings and examples.
Example 1: this embodiment provides a prefabricated inspection shaft and concrete pipeline connecting device, as shown in fig. 1, the device includes inspection shaft 1, drainage pipe 4 and connection template 6, is equipped with inspection shaft well seat 2 in the bottom of inspection shaft, has seted up penetrating preformed hole 3 on the wall of a well of inspection shaft well seat 2 top, has seted up round embedded recess 11 along the inner circle central line on preformed hole inner circle wall, is equipped with water-swellable seal 7 in the embedded recess, and the drainage pipe can stretch into in the preformed hole and can contact with water-swellable seal 7.
As shown in fig. 1-3, the connecting template 6 comprises a horn connecting pipe 8, a pouring hopper 5 and a fastener, wherein the horn connecting pipe and the pouring hopper are made of stainless steel materials, the horn connecting pipe is integrally connected with the connecting sleeve, and the pouring hopper is integrally connected with the horn connecting pipe. The horn connecting pipe 8 comprises a horn mouth 9 and a connecting sleeve 10, wherein the connecting sleeve 10 is sleeved at the near end of the drainage pipeline, so that the horn mouth can be installed at a reserved hole of an inspection well and can be tightly attached to the outer wall of the inspection well, and a pouring slot is formed between the inner cavity of the horn mouth and the reserved hole. A feed inlet is formed in the top of the bell mouth, and a pouring hopper 5 is positioned on the feed inlet and is in butt joint with the feed inlet so as to be communicated with the pouring tank; the pouring hopper used in the embodiment is a dustpan-shaped hopper, one surface of the pouring hopper, which is in contact with the outer wall of the inspection well, is an arc surface which can be closely attached to the outer wall of the inspection well, and the pouring hopper can be specifically manufactured by stainless steel plates with the length of 400mm-500mm, the height of 200mm-250mm and the thickness of 0.5mm-1 mm.
As shown in fig. 4, the fastener used in this embodiment is a pipe hoop, and the fastener includes a first butt joint half ring 62 and a second butt joint half ring 63, which are matched and butted, an annular boss 11 protruding from the body of the first butt joint half ring and the second butt joint half ring is disposed on the inner walls of the first butt joint half ring and the second butt joint half ring, one side of the annular boss is flush with one end of the first butt joint half ring, the other side of the annular boss is flush with the circumferential center line of the inner wall of the second butt joint half ring, and the thickness of the annular boss is the same as the thickness of the sleeve of the horn connecting pipe. The butt joint seats are arranged at the top and the bottom of the two butt joint semi-rings, the butt joint seats are internally penetrated with fastening bolts 65 to connect the top and the bottom of the two butt joint semi-rings, and when the proximal end of the drain pipe stretches into the reserved hole and does not protrude out of the reserved hole, the first butt joint semi-ring 62 and the second butt joint semi-ring 63 are fastened outside the sleeve pipe and the drain pipe to fix the sleeve pipe and the drain pipe.
When the connecting template is installed and used, firstly, the bell mouth 9 of the horn connecting pipe 8 corresponds to the reserved hole 3, and the bell mouth 9 is installed on the outer wall of the inspection well 1 so as to be tightly attached to the outer wall of the inspection well 1; the drain line 4 is then inserted through the connecting sleeve 10 and into the preformed hole 5 without protruding beyond the inner opening of the preformed hole.
Then with fastener suit between adapter sleeve 10 and drain pipe and adapter sleeve's outer end and the inseparable butt joint of annular boss, after the fastening bolt locks two butt joint semi-rings, because the fastening effect of butt joint semi-rings to junction and annular boss to adapter sleeve's extrusion effect, the connection template can be stable with adapter sleeve and drain pipe connection inseparable, can not take place to slide. And finally pouring micro-expansion concrete into the bell mouth 9 through the pouring hopper 5, wherein the micro-expansion concrete flows in the reserved hole 3 and fills up the bell mouth 8 and the gap between the reserved hole and the drainage pipeline, the water-expansion water stop strip 7 expands when contacting with the micro-expansion concrete, and the gap between the concrete and the drainage pipeline 4 is compacted by the self-expansion acting force, so that the water stop effect can be completely achieved, and then the drainage pipeline 4 is fixed after the concrete is solidified.
Example 2: the embodiment provides a connection process of a prefabricated inspection well and a concrete drainage pipeline, wherein the connection process is that the proximal end of the drainage pipeline extends into a reserved hole and does not protrude out of the reserved hole, and then the inspection well is connected with the drainage pipeline by using a connection template; as shown in fig. 1 and 3, the connecting template comprises a horn connecting pipe, a pouring hopper and a fastening piece, wherein the horn connecting pipe comprises a horn mouth and a connecting sleeve, the connecting sleeve is sleeved at the near end of a drainage pipeline, so that the horn mouth can be installed at a reserved hole of an inspection well and can be tightly attached to the outer wall of the inspection well, a pouring slot is formed between the inner cavity of the horn mouth and the reserved hole, and the pouring slot is communicated with the pouring hopper; a feed inlet is formed in the top of the bell mouth, and a dumping hopper is positioned on the feed inlet and is in butt joint with the feed inlet; the proximal end of the drain pipe extends into the preformed hole and does not protrude out of the inner side opening of the preformed hole, and the fastener is fastened outside the sleeve and the drain pipe to fix the sleeve and the drain pipe.
The connection process specifically comprises the following steps:
s1, forming a through reserved hole in a well wall above a manhole seat for later installation of a drainage pipeline; measuring and recording wall thickness of inspection welltA circle of embedded groove is formed on the inner ring wall of the preformed hole along the center line of the inner ring of the preformed hole, and the groove width of the embedded groovew=0.2-0.25tThe depth of the embedded groove is 20-25mm; for example, the embedded groove may have a groove width of 30mm and a groove depth of 25mm.
S2, pressing in the embedded groove to form a water-swelling water stop strip, wherein the width of the water stop strip is not smaller than the groove width of the embedded groove, and the thickness of the water stop strip is not smaller than the groove depth of the embedded groove.
S3, roughening the wall surface of the inner ring of the preformed hole, wherein the roughening area is the position of the inner ring of the preformed hole for removing the groove;
s4, sleeving a connecting sleeve of the horn connecting pipe on the outer side of the near end of the drainage pipeline, and then performing pipeline roughening along the circumference of the outer wall of the pipeline on the outer wall of the near end of the drainage pipeline;
s5, extending the proximal end of the drainage pipeline into the reserved hole and not protruding out of the inner side opening of the reserved hole so that the roughening position of the pipeline corresponds to the roughening position of the inner ring wall surface of the reserved hole of the inspection well, and supporting a supporting frame at the distal end of the drainage pipeline; then pushing the bell mouth of the bell-mouthed connecting pipe towards the wall of the inspection well, so that the bell mouth is tightly attached to the outer wall of the inspection well around the reserved hole;
s6, fastening the sleeve with the drainage pipeline by using a pipeline fastener, and forming a pouring slot between the inner cavity of the bell mouth and the reserved hole;
s7, gradually pouring micro-expansion concrete into the pouring hopper to enable the micro-expansion concrete to enter the pouring tank through the feeding hole, and knocking the bell mouth to vibrate the concrete in the pouring tank until the concrete is filled densely.
In the connection process of the embodiment, the inner wall of the preformed hole of the inspection well is provided with the embedded groove and roughening treatment is carried out, the water-swelling water stop strip is arranged in the embedded groove, and the drainage pipeline subjected to roughening treatment can be contacted with the water-swelling water stop strip after extending into the preformed hole; the micro-expansion concrete is poured into the bell mouth through the pouring hopper, the concrete flows in the reserved hole and fills the reserved hole and the bell pipe, and meanwhile, when the water-expansion water stop ring contacts with the concrete, the water stop effect can be completely achieved by self-expansion compaction of the gap between the concrete and the pipeline, and then the pipeline is fixed after the concrete is solidified. The mode has changed the tradition to the mode of filling in concrete into junction, can pour closely knit with concrete, avoids the concrete to distribute unevenly and causes the hollowness, can effectively guarantee inspection shaft and the concrete construction quality of pipe connection, avoids appearing the infiltration phenomenon, reduces reworking and repair, practices thrift construction cost.
Claims (7)
1. The utility model provides a prefabricated inspection shaft and concrete drainage pipe connecting device which characterized in that: the water-swelling water stop device comprises an inspection well, a drainage pipe and a connecting template, wherein an inspection well seat is arranged at the bottom of the inspection well, a through preformed hole is formed in a well wall above the inspection well seat, a circle of embedded grooves are formed in the inner ring wall of the preformed hole along the central line of the inner ring, a water-swelling water stop ring is arranged in each embedded groove, and the proximal end of the drainage pipe extends into the preformed hole and can be in contact with a water-swelling water stop bar; the connecting template comprises a horn connecting pipe, a pouring hopper and a fastening piece, wherein the horn connecting pipe comprises a horn mouth and a connecting sleeve, the connecting sleeve is sleeved at the near end of the drainage pipeline, so that the horn mouth can be installed at a reserved hole of the inspection well and can be tightly attached to the outer wall of the inspection well, and a pouring slot is formed between the inner cavity of the horn mouth and the reserved hole; a feed inlet is formed in the top of the bell mouth, and a pouring hopper is positioned on the feed inlet and is in butt joint with the feed inlet so as to be communicated with the pouring tank; after the proximal end of the drain pipe extends into the preformed hole and does not protrude out of the preformed hole, the fastener is fastened outside the sleeve and the drain pipe to fix the sleeve and the drain pipe;
when the inspection well is connected with the drainage pipeline, the proximal end of the drainage pipe extends into the reserved hole and does not protrude out of the reserved hole, and then the inspection well is connected with the drainage pipeline by utilizing a prefabricated inspection well and concrete pipeline connecting template; the method comprises the following steps:
s1, forming a through preformed hole in a well wall above a manhole seat for later installation of a drain pipe, and measuring and recording the wall thickness of a manholetA circle of embedded groove is formed on the inner ring wall of the preformed hole along the center line of the inner ring of the preformed hole, and the groove width of the embedded groovew=0.2-0.25tThe depth of the embedded groove is 20-25mm;
s2, pressing a water-swelling water stop strip into the embedded groove, wherein the width of the water stop strip is not smaller than the groove width of the embedded groove, and the thickness of the water stop strip is not smaller than the groove depth of the embedded groove;
s3, roughening the wall surface of the inner ring of the preformed hole, wherein the roughening area is the position of the inner ring of the preformed hole for removing the groove;
s4, sleeving a sleeve of the horn connecting pipe on the outer side of the near end of the drainage pipeline, and then roughening the pipeline along the circumference of the outer wall of the pipeline on the outer wall of the near end of the drainage pipeline;
s5, extending the proximal end of the drainage pipeline into the reserved hole to enable the roughening position of the pipeline to correspond to the roughening position of the inner ring wall surface of the reserved hole of the inspection well, and supporting a supporting frame at the distal end of the drainage pipeline; then pushing the bell mouth of the bell-mouthed connecting pipe towards the wall of the inspection well, so that the bell mouth is tightly attached to the outer wall of the inspection well around the reserved hole;
s6, fastening the sleeve with the drainage pipeline by using a pipeline fastener, and forming a pouring slot between the inner cavity of the bell mouth and the reserved hole;
s7, gradually pouring micro-expansion concrete into the pouring hopper to enable the micro-expansion concrete to enter the pouring tank through the feeding hole, and knocking the bell mouth to vibrate the concrete in the pouring tank until the concrete is filled densely.
2. The prefabricated manhole and concrete drainage pipe connection device according to claim 1, wherein: the inspection well is characterized by further comprising an inner side template which is arranged at the inner opening of the inspection well reserved hole in a sealing mode.
3. The prefabricated manhole and concrete drainage pipe connection device according to claim 1, wherein: the fastening piece comprises two butted half rings, the inner wall of each butted half ring is provided with an annular boss protruding out of the butted half ring body, one side of each annular boss is flush with one end of each butted half ring, the other side of each annular boss is flush with the circumferential center line of the inner wall of each butted half ring, and the thickness of each annular boss is the same as that of the horn connecting pipe sleeve; and the top and the bottom of the two docking rings are respectively provided with a docking seat, and fastening bolts are arranged in the docking seats in a penetrating way to connect the top and the bottom of the two docking semi-rings.
4. The prefabricated manhole and concrete drainage pipe connection device according to claim 1, wherein: the horn connecting pipe and the pouring hopper are made of stainless steel materials, the horn pipe is integrally connected with the sleeve, and the guide hopper is integrally connected with the horn pipe.
5. The prefabricated manhole and concrete drainage pipe connection device according to claim 1, wherein: the inner wall surface of the annular boss is provided with anti-skid patterns, and the anti-skid patterns are convex patterns or concave patterns.
6. The prefabricated manhole and concrete drainage pipe connection device according to claim 1, wherein: the pouring hopper is dustpan-shaped, and one surface of the pouring hopper, which is in contact with the inspection well, is an arc surface which can be tightly attached to the outer wall of the inspection well.
7. The prefabricated manhole and concrete drainage pipe connection device according to claim 1, wherein: and the sealing cover is arranged at the inner side opening of the reserved hole of the inspection well before the micro-expansion concrete is poured into the pouring hopper, so that the butt joint position of the drain pipe and the inspection well is sealed.
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| CN202111132470.XA CN113818540B (en) | 2021-09-27 | 2021-09-27 | Connecting device and connecting process for prefabricated inspection well and concrete pipeline |
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| CN202111132470.XA CN113818540B (en) | 2021-09-27 | 2021-09-27 | Connecting device and connecting process for prefabricated inspection well and concrete pipeline |
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| JPS61134445A (en) * | 1984-11-30 | 1986-06-21 | 住友金属工業株式会社 | Simple drain treatment apparatus |
| AU2017201781B1 (en) * | 2016-06-13 | 2017-08-03 | Thomas Cherimulla Itty | Modular drainage assembly and drainage unit therefor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060634B (en) * | 2014-07-01 | 2016-05-04 | 国家电网公司 | Water-stopping method and the structure of push pipe work well reserving hole |
| CN104534216A (en) * | 2015-01-06 | 2015-04-22 | 无锡市政设计研究院有限公司 | Drainage pipeline and inspection well connection water stop structure |
| CN210066973U (en) * | 2019-05-06 | 2020-02-14 | 章高通 | Sewage inlet assembly |
| CN211898792U (en) * | 2019-12-16 | 2020-11-10 | 南安市硕丰机械科技有限公司 | Anti-theft sewage discharging device |
| CN212453000U (en) * | 2020-05-29 | 2021-02-02 | 江苏大隆鑫建设集团有限公司 | Water stop structure for connecting drainage pipeline and inspection well |
| CN112012243A (en) * | 2020-09-27 | 2020-12-01 | 浙江历天建设有限公司 | Prefabricated integrated reinforced concrete inspection well and construction method thereof |
| CN213709794U (en) * | 2020-10-30 | 2021-07-16 | 无锡市瑞景城市服务有限公司 | Drainage pipe and inspection well connection water stop structure |
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- 2021-09-27 CN CN202111132470.XA patent/CN113818540B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61134445A (en) * | 1984-11-30 | 1986-06-21 | 住友金属工業株式会社 | Simple drain treatment apparatus |
| AU2017201781B1 (en) * | 2016-06-13 | 2017-08-03 | Thomas Cherimulla Itty | Modular drainage assembly and drainage unit therefor |
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