CN110541453A - Slip automatically cleaning formula water conservancy pipeline - Google Patents
Slip automatically cleaning formula water conservancy pipeline Download PDFInfo
- Publication number
- CN110541453A CN110541453A CN201910767867.2A CN201910767867A CN110541453A CN 110541453 A CN110541453 A CN 110541453A CN 201910767867 A CN201910767867 A CN 201910767867A CN 110541453 A CN110541453 A CN 110541453A
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- Prior art keywords
- snap ring
- ring
- limiting
- water
- water pipe
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/006—Arrangements or methods for cleaning or refurbishing water conduits
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
- E03B7/095—Component holders or housings, e.g. boundary boxes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sewage (AREA)
Abstract
A sliding self-cleaning type water conservancy pipeline relates to the technical field of river channel cleaning equipment and comprises a water pipe, a clamping ring and a dredging device, wherein the clamping ring and the dredging device are arranged on the water pipe; the invention has strong practicability and very convenient use, not only removes impurities such as silt and the like attached in the water delivery pipe and ensures the cleanness of the delivered water, but also has the advantages of quick and convenient installation and cleaning, trouble and labor saving, and reduces the labor amount for cleaning the water delivery pipe in the early stage and the later stage.
Description
Technical Field
The invention relates to the technical field of riverway cleaning equipment, in particular to a sliding self-cleaning type water conservancy pipeline.
Background
It is known that the hydraulic engineering is used for controlling and allocating surface water and underground water in the nature, the engineering of building for the purpose of removing harm and benefiting is achieved, the requirement of people life and production on water resources is met, pipelines of various different types are needed in the construction of the hydraulic engineering, the hydraulic pipeline is an auxiliary facility specially used for controlling water flow direction in the field of the hydraulic engineering, and due to the fact that the silt content in rivers, ponds and wells is high, equipment is often blocked, the cleaning process is time-consuming and labor-consuming, the hydraulic engineering operation is influenced, the operation labor intensity is increased, the water conveying pipeline is scrapped under the serious condition, the cost of water using enterprises is increased, and the economic burden of the enterprises is increased.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses a sliding self-cleaning water conservancy pipeline.
In order to realize the purpose, the invention adopts the following technical scheme:
The utility model provides a slip automatically cleaning formula water conservancy pipeline, including the water pipe, snap ring and desilting device, be equipped with snap ring and desilting device on the water pipe, the water pipe comprises first water pipe and second water pipe, first water pipe sets up with second water pipe symmetry, the snap ring comprises first snap ring and second snap ring, first snap ring and second snap ring symmetry set up, the desilting device is by the fixed plate, a spring, the connecting axle, the wheel, scraper blade and baffle constitute, be equipped with the spring on the fixed plate, scraper blade and connecting axle, be equipped with the baffle on the scraper blade, be equipped with the wheel on the connecting axle.
The first water pipe comprises a pipe body and a limiting ring, the limiting ring is arranged on the pipe body, the pipe body is of a hollow cylindrical structure, the limiting ring is of a circular ring type structure, the limiting rings are arranged at two ends of the pipe body, the bottom surface of one end of the pipe body is connected with the bottom surface of one limiting ring, the bottom surface of the other end of the pipe body is connected with the bottom surface of the other limiting ring, two sliding grooves are symmetrically arranged on the inner wall of the pipe body, fixing plates are arranged in the two sliding grooves, clamping grooves are formed between the two sliding grooves and the side surface of the pipe body, the sliding grooves are connected with.
The second water pipe comprises body and spacing ring, is equipped with the spacing ring on the body, and the body is hollow cylinder type structure, and the spacing ring is ring type structure, and the both ends of body all are equipped with the spacing ring, and body one end bottom surface is connected with the bottom surface of a spacing ring, and body other end bottom surface is connected with the bottom surface of another spacing ring, and the symmetry is equipped with two spouts on the inner wall of body, all is equipped with the fixed plate in two spouts, all is equipped with the draw-in groove between two spouts and the body side, and the spout is connected with the draw-in groove, and the width of draw-in groove is.
The first snap ring is of a semicircular structure, two limiting grooves are symmetrically formed in the first snap ring, the limiting grooves are transversely formed in the inner concave surface of the second snap ring, the two limiting groove structures are the same, the two limiting grooves are arranged in parallel, a limiting groove is internally provided with a limiting ring at one end of the first water pipe, another limiting groove is internally provided with a limiting ring at one end of the second water pipe, one end of each limiting groove is provided with at least one fixed rod, the fixed rods are cylindrical, prismatic or rectangular structures, one end of each fixed rod is connected with the first snap ring, each fixed rod is uniformly arranged at one end of each limiting groove, the other end of each limiting groove is provided with at least one fixed hole, each fixed hole is uniformly arranged at the other end of each limiting groove, and the second snap ring is arranged above the first snap ring.
the second snap ring has the same structure as the first snap ring, the second snap ring is of a semicircular ring structure, two limiting grooves are symmetrically arranged on the second snap ring, the limiting grooves are transversely arranged on the inner concave surface of the second snap ring, the two limiting grooves have the same structure and are arranged in parallel, a limiting ring at one end of the first water pipe is arranged in each limiting groove, a limiting ring at one end of the second water pipe is arranged in the other limiting groove, the limiting grooves of the second snap ring are symmetrically arranged with the limiting grooves of the first snap ring, at least one fixed rod is arranged at one end of each limiting groove, the fixed rods are of cylindrical, prismatic or long structures, one end of each fixed rod is connected with the first square snap ring, each fixed rod is uniformly arranged at one end of each limiting groove, the fixed rods of the second snap ring are arranged in the fixed holes of the first snap ring, at least one fixed hole is arranged at the other end of each limiting groove, the fixing hole of the second snap ring is internally provided with a fixing rod of the first snap ring.
The dredging device is characterized in that two dredging devices are arranged in the pipe body, the two dredging devices are symmetrically arranged, the fixed plate is of a rectangular structure, the upper surface of the fixed plate is provided with a scraper which is of an arc-shaped mechanism, the outer convex surface of the scraper is connected with the upper surface of the fixed plate, one end of the scraper is provided with a baffle which is of an arc-shaped structure, and a spring is arranged below the baffle.
The spring sets up in the spout, and the one end of spring is connected with the terminal surface of fixed plate, and the other end of spring is connected with the inside face of spacing ring, and the setting of the spring of dredging device in the first water pipe is on the spacing ring of keeping away from snap ring one end, and the setting of the spring of dredging device in the second water pipe is on the spacing ring of one end in the snap ring, and the spring below is equipped with the connecting axle.
The fixed plate is provided with at least two connecting shafts, the connecting shafts are of cylindrical structures and are symmetrically arranged on two sides of the fixed plate, the bottom surface of one end of each connecting shaft is connected with the side surface of the fixed plate, each connecting shaft is provided with a wheel, and the connecting shafts and the wheels are arranged in clamping grooves.
The invention relates to a sliding self-cleaning water conservancy pipeline which comprises a bottom water pipe, a clamping ring and a dredging device, wherein the clamping ring and the dredging device are arranged on the water pipe so as to achieve the purpose of cleaning silt and dirt on the inner wall of the water pipe; the invention has strong practicability and very convenient use, not only removes impurities such as silt and the like attached in the water delivery pipe and ensures the cleanness of the delivered water, but also has the advantages of quick and convenient installation and cleaning, trouble and labor saving, and reduces the labor amount for cleaning the water delivery pipe in the early stage and the later stage.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of a snap ring according to the present invention;
FIG. 3 is a schematic perspective view of the water pipe of the present invention;
FIG. 4 is a schematic cross-sectional view of a water tube of the present invention;
FIG. 5 is a schematic perspective view of the dredging device of the present invention;
In the figure: 1. a first water pipe; 2. a second water pipe; 3. a first snap ring; 4. a second snap ring; 5. fixing the rod; 6. a fixing hole; 7. a limiting groove; 8. a pipe body; 9. a limiting ring; 10. a chute; 11. a card slot; 12. a fixing plate; 13. a squeegee; 14. a baffle plate; 15. a connecting shaft; 16. a wheel; 17. a spring.
Detailed Description
The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.
Combine 1~5 a slip automatically cleaning formula water conservancy pipeline of attached drawing, including the water pipe, snap ring and desilting device, be equipped with snap ring and desilting device on the water pipe, the water pipe comprises first water pipe 1 and second water pipe 2, first water pipe 1 sets up with 2 symmetries of second water pipe, the snap ring comprises first snap ring 3 and second snap ring 4, first snap ring 3 and 4 symmetries of second snap ring set up, the desilting device is by fixed plate 12, spring 17, connecting axle 15, wheel 16, scraper blade 13 and baffle 14 constitute, be equipped with spring 17 on fixed plate 12, scraper blade 13 and connecting axle 15, be equipped with baffle 14 on the scraper blade 13, be equipped with wheel 16 on the connecting axle 15.
First water pipe 1 comprises body 8 and spacing ring 9, be equipped with spacing ring 9 on the body 8, the body of body 8 is hollow cylinder type structure, the spacing ring + is ring type structure, the both ends of body 8 all are equipped with spacing ring 9, 8 one end bottom surfaces of body are connected with the bottom surface of a spacing ring 9, 8 other end bottom surfaces of body are connected with the bottom surface of another spacing ring 9, the symmetry is equipped with two spouts 10 on the inner wall of body 8, all be equipped with fixed plate 12 in two spouts 10, all be equipped with draw-in groove 11 between two spouts 10 and the 8 sides of body, spout 10 is connected with draw-in groove 11, the width of draw-in groove 11 is greater than the width of spout 10.
The second water pipe 2 comprises body 8 and spacing ring 9, be equipped with spacing ring 9 on the body 8, body 8 is hollow cylinder type structure, spacing ring 9 is ring type structure, the both ends of body 8 all are equipped with spacing ring 9, 8 one end bottom surfaces of body are connected with the bottom surface of a spacing ring 9, 8 other end bottom surfaces of body are connected with the bottom surface of another spacing ring 9, the symmetry is equipped with two spouts 10 on the inner wall of body 8, all be equipped with fixed plate 12 in two spouts 10, all be equipped with draw-in groove 11 between two spouts 10 and the 8 sides of body, spout 10 is connected with draw-in groove 11, the width of draw-in groove 11 is greater than the width of spout 10.
The first snap ring 3 is of a semicircular structure, two limiting grooves 7 are symmetrically arranged on the first snap ring 3, the limiting grooves 7 are transversely arranged on the inner concave surface of the second snap ring 4, the two limiting grooves 7 are identical in structure, the two limiting grooves 7 are arranged in parallel, a limiting ring 9 at one end of the first water pipe 1 is arranged in one limiting groove 7, a limiting ring 9 at one end of the second water pipe 2 is arranged in the other limiting groove 7, at least one fixing rod 5 is arranged at one end of each limiting groove 7, each fixing rod 5 is of a cylindrical, prismatic or rectangular structure, one end of each fixing rod 5 is connected with the first snap ring 3, each fixing rod 5 is uniformly arranged at one end of each limiting groove 7, at least one fixing hole 6 is arranged at the other end of each limiting groove 7, and the second snap ring 4 is arranged above the first snap ring 3.
The second snap ring 4 has the same structure as the first snap ring 3, the second snap ring 4 is a semicircular structure, two limiting grooves 7 are symmetrically arranged on the second snap ring 4, the limiting grooves 7 are transversely arranged on the inner concave surface of the second snap ring 4, the two limiting grooves 7 have the same structure, the two limiting grooves 7 are arranged in parallel, a limiting ring 9 at one end of the first water pipe 1 is arranged in one limiting groove 7, a limiting ring 9 at one end of the second water pipe 2 is arranged in the other limiting groove 7, the limiting grooves 7 of the second snap ring 4 are symmetrically arranged with the limiting grooves 7 of the first snap ring 3, one end of the limiting groove 7 is provided with at least one fixing rod 5, the fixing rod 5 is of a cylindrical, prismatic or rectangular structure, one end of the fixing rod 5 is connected with the first snap ring 3, each fixing rod 5 is uniformly arranged at one end of the limiting groove 7, the fixing rod 5 of the second snap ring 4 is arranged in a fixing hole 6 of the first snap ring 3, the other end of spacing groove 7 is equipped with at least one fixed orifices 6, and each fixed orifices 6 evenly establishes at the other end of spacing groove 7, establishes in the fixed orifices 6 of second snap ring 4 by the dead lever 5 of first snap ring 3.
Two dredging devices are arranged in the pipe body 8 and are symmetrically arranged, the fixing plate 12 is of a rectangular structure, the upper surface of the fixing plate 12 is provided with a scraper 13, the scraper 13 is of an arc-shaped mechanism, the outer convex surface of the scraper 13 is connected with the upper surface of the fixing plate 12, one end of the scraper 13 is provided with a baffle 14, the baffle 14 is of an arc-shaped structure, and a spring 17 is arranged below the baffle 14.
The spring 17 sets up in spout 10, and the one end of spring 17 is connected with a terminal surface of fixed plate 12, and the other end of spring 17 is connected with the inside face of spacing ring 9, and the spring 17 of desilting device sets up on the spacing ring 9 of keeping away from snap ring one end in the first water pipe 1, and the spring 17 of desilting device sets up on the spacing ring 9 of one end in the snap ring in the second water pipe 2, and the spring 17 below is equipped with connecting axle 15.
The fixing plate 12 is provided with at least two connecting shafts 15, the connecting shafts 15 are of cylindrical structures, the connecting shafts 15 are symmetrically arranged on two sides of the fixing plate 12, the bottom surface of one end of each connecting shaft 15 is connected with the side surface of the fixing plate 12, each connecting shaft 15 is provided with a wheel 16, and the connecting shafts 15 and the wheels 16 are arranged in the clamping grooves 11.
The embodiment of the sliding self-cleaning type water conservancy pipeline comprises the steps that when in use, the concave surface of a first clamping ring 3 is placed upwards in a dug groove, then a first water pipe 1 and a second water pipe 2 are respectively placed above a second clamping ring 4, a limiting ring 9 at one end of the first water pipe 1, which is not provided with a dredging device, is installed in a limiting groove 7 of the first clamping ring 3, one end of the first water pipe 1, which is provided with the dredging device, faces a water source direction, a limiting ring 9 at one end of the second water pipe 2, which is provided with the dredging device, is installed in the other limiting groove 7 of the first clamping ring 3, then the second clamping ring 4 is installed above the first water pipe 1 and the second water pipe 2, so that the two limiting grooves 7 of the second clamping ring 4 are respectively clamped on the two limiting rings 9 of the first water pipe 1 and the second water pipe 2, and a fixing rod 5 on the second clamping ring 4 is placed in a fixing hole 6 of the first clamping ring 3, dead lever 5 on first snap ring 3 is arranged in the fixed orifices 6 of second snap ring 4, just can fill out after the installation finishes, close the water source earlier when desilting, make spring 17 in the water pipe draw fixed plate 12 to the spacing ring 9 of one end by, turn on the water again, rivers wash and move baffle 14 to the water pipe other end on baffle 14, scraper blade 13 of top just can scrape attached debris such as silt on the water pipe inner wall when fixed plate 12 removes, and flow out the water pipe along with the rivers outside, wash several times just can discharge the water pipe with debris such as silt in the pipeline outside.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a slip automatically cleaning formula water conservancy pipeline, includes water pipe, snap ring and desilting device, is equipped with snap ring and desilting device, characterized by on the water pipe: be equipped with snap ring and desilting device on the water pipe, the water pipe comprises first water pipe and second water pipe, and first water pipe sets up with the second water pipe symmetry, and the snap ring comprises first snap ring and second snap ring, and first snap ring and second snap ring symmetry set up, and the desilting device comprises fixed plate, spring, connecting axle, wheel, scraper blade and baffle, is equipped with spring, scraper blade and connecting axle on the fixed plate, is equipped with the baffle on the scraper blade, is equipped with the wheel on the connecting axle.
2. A sliding self-cleaning water conservancy pipeline according to claim 1, wherein: the first water pipe comprises a pipe body and a limiting ring, the limiting ring is arranged on the pipe body, the pipe body is of a hollow cylindrical structure, the limiting ring is of a circular ring type structure, the limiting rings are arranged at two ends of the pipe body, the bottom surface of one end of the pipe body is connected with the bottom surface of one limiting ring, the bottom surface of the other end of the pipe body is connected with the bottom surface of the other limiting ring, two sliding grooves are symmetrically arranged on the inner wall of the pipe body, fixing plates are arranged in the two sliding grooves, clamping grooves are formed between the two sliding grooves and the side surface of the pipe body, the sliding grooves are connected with.
3. A sliding self-cleaning water conservancy pipeline according to claim 1, wherein: the second water pipe comprises body and spacing ring, is equipped with the spacing ring on the body, and the body is hollow cylinder type structure, and the spacing ring is ring type structure, and the both ends of body all are equipped with the spacing ring, and body one end bottom surface is connected with the bottom surface of a spacing ring, and body other end bottom surface is connected with the bottom surface of another spacing ring, and the symmetry is equipped with two spouts on the inner wall of body, all is equipped with the fixed plate in two spouts, all is equipped with the draw-in groove between two spouts and the body side, and the spout is connected with the draw-in groove, and the width of draw-in groove is.
4. a sliding self-cleaning water conservancy pipeline according to claim 1, wherein: the water collecting tank is composed of a first water collecting tank and a second water collecting tank, the first water collecting tank and the second water collecting tank are identical in structure, the first water collecting tank and the second water collecting tank are both arc-shaped structures, the first water collecting tank and the second water collecting tank are symmetrically arranged, the first water collecting tank is arranged outside a first water inlet hole, two limiting holes are symmetrically arranged below the first water collecting tank, the limiting holes of the first water collecting tank correspond to the limiting holes above the first water inlet hole, pins are arranged in the limiting holes of the first water collecting tank, the first water collecting tank is connected with a supporting pipe through the pins, a clamping block is arranged above the first water collecting tank, the clamping block is of an arc-shaped structure, the outer convex surface of the clamping block is connected with the inner concave surface of the first water collecting tank, and the clamping block is arranged in a clamping groove above the first water inlet hole.
5. a sliding self-cleaning water conservancy pipeline according to claim 1, wherein: the first snap ring is of a semicircular structure, two limiting grooves are symmetrically formed in the first snap ring, the limiting grooves are transversely formed in the inner concave surface of the second snap ring, the two limiting groove structures are the same, the two limiting grooves are arranged in parallel, a limiting groove is internally provided with a limiting ring at one end of the first water pipe, another limiting groove is internally provided with a limiting ring at one end of the second water pipe, one end of each limiting groove is provided with at least one fixed rod, the fixed rods are cylindrical, prismatic or rectangular structures, one end of each fixed rod is connected with the first snap ring, each fixed rod is uniformly arranged at one end of each limiting groove, the other end of each limiting groove is provided with at least one fixed hole, each fixed hole is uniformly arranged at the other end of each limiting groove, and the second snap ring is arranged above the first snap ring.
6. A sliding self-cleaning water conservancy pipeline according to claim 1, wherein: the second snap ring has the same structure as the first snap ring, the second snap ring is of a semicircular ring structure, two limiting grooves are symmetrically arranged on the second snap ring, the limiting grooves are transversely arranged on the inner concave surface of the second snap ring, the two limiting grooves have the same structure and are arranged in parallel, a limiting ring at one end of the first water pipe is arranged in each limiting groove, a limiting ring at one end of the second water pipe is arranged in the other limiting groove, the limiting grooves of the second snap ring are symmetrically arranged with the limiting grooves of the first snap ring, at least one fixed rod is arranged at one end of each limiting groove, the fixed rods are of cylindrical, prismatic or long structures, one end of each fixed rod is connected with the first square snap ring, each fixed rod is uniformly arranged at one end of each limiting groove, the fixed rods of the second snap ring are arranged in the fixed holes of the first snap ring, at least one fixed hole is arranged at the other end of each limiting groove, the fixing hole of the second snap ring is internally provided with a fixing rod of the first snap ring.
7. a sliding self-cleaning water conservancy pipeline according to claim 1, wherein: the dredging device is characterized in that two dredging devices are arranged in the pipe body, the two dredging devices are symmetrically arranged, the fixed plate is of a rectangular structure, the upper surface of the fixed plate is provided with a scraper which is of an arc-shaped mechanism, the outer convex surface of the scraper is connected with the upper surface of the fixed plate, one end of the scraper is provided with a baffle which is of an arc-shaped structure, and a spring is arranged below the baffle.
8. A sliding self-cleaning water conservancy pipeline according to claim 1, wherein: the spring sets up in the spout, and the one end of spring is connected with the terminal surface of fixed plate, and the other end of spring is connected with the inside face of spacing ring, and the setting of the spring of dredging device in the first water pipe is on the spacing ring of keeping away from snap ring one end, and the setting of the spring of dredging device in the second water pipe is on the spacing ring of one end in the snap ring, and the spring below is equipped with the connecting axle.
9. A sliding self-cleaning water conservancy pipeline according to claim 1, wherein: the fixed plate is provided with at least two connecting shafts, the connecting shafts are of cylindrical structures and are symmetrically arranged on two sides of the fixed plate, the bottom surface of one end of each connecting shaft is connected with the side surface of the fixed plate, each connecting shaft is provided with a wheel, and the connecting shafts and the wheels are arranged in clamping grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910767867.2A CN110541453A (en) | 2019-08-20 | 2019-08-20 | Slip automatically cleaning formula water conservancy pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910767867.2A CN110541453A (en) | 2019-08-20 | 2019-08-20 | Slip automatically cleaning formula water conservancy pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110541453A true CN110541453A (en) | 2019-12-06 |
Family
ID=68711733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910767867.2A Pending CN110541453A (en) | 2019-08-20 | 2019-08-20 | Slip automatically cleaning formula water conservancy pipeline |
Country Status (1)
| Country | Link |
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| CN (1) | CN110541453A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321790A (en) * | 2020-03-07 | 2020-06-23 | 界首市天瓴建筑工程有限公司 | A drainage pipe device for municipal works |
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| US20130294840A1 (en) * | 2009-09-22 | 2013-11-07 | Mueller International, Llc | Adjustable underground meter installation |
| CN104006244A (en) * | 2014-05-26 | 2014-08-27 | 美的集团武汉制冷设备有限公司 | Anti-detaching pipe connection device and air conditioner |
| CN108291677A (en) * | 2015-11-26 | 2018-07-17 | 赛多利斯司特蒂姆生物工艺公司 | Protective device for hose clamp |
| CN206539818U (en) * | 2017-03-13 | 2017-10-03 | 安徽天润塑业有限公司 | A kind of converying feeding tube for avoiding material from luming |
| CN207348174U (en) * | 2017-09-27 | 2018-05-11 | 东旭建设集团有限公司 | A kind of municipal drainage pipeline being conveniently replaceable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111321790A (en) * | 2020-03-07 | 2020-06-23 | 界首市天瓴建筑工程有限公司 | A drainage pipe device for municipal works |
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Application publication date: 20191206 |