CN112112259A - Pipeline dredging device - Google Patents
Pipeline dredging device Download PDFInfo
- Publication number
- CN112112259A CN112112259A CN202011118929.6A CN202011118929A CN112112259A CN 112112259 A CN112112259 A CN 112112259A CN 202011118929 A CN202011118929 A CN 202011118929A CN 112112259 A CN112112259 A CN 112112259A
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- CN
- China
- Prior art keywords
- fixed
- base
- crank
- pipeline
- sheath
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
- E03F7/10—Wheeled apparatus for emptying sewers or cesspools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Public Health (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a pipeline dredging device which comprises a base, wherein a driving motor is fixed on the base, a rotating head of the driving motor is coaxially connected with a rotating shaft, and a stirring rod mechanism and a dredging mechanism are respectively fixed on the rotating shaft; the desilting mechanism includes the screw rod with pivot coaxial coupling, the outer coaxial sheath that has cup jointed of screw rod, be provided with on the sheath along its length direction's the spout that runs through, screw nut has been cup jointed on the screw rod, screw nut's outer wall is fixed with fixed baseplate, fixed baseplate is last to be fixed with first articulated seat, it has first crank to articulate on the first articulated seat, the outer wall of sheath is fixed with the articulated seat of second, it has the second crank to articulate on the articulated seat of second, the one end of keeping away from first articulated seat in the first crank is articulated mutually with the one end of keeping away from the articulated seat of second in the second crank, still be fixed with the support on the first crank, be fixed with a plurality of claws that collude on the support. The problem of when the silt of pipeline or other foreign matters volumes great, perhaps block up comparatively inseparably, hardly clear up is solved.
Description
Technical Field
The invention relates to the field of pipeline dredging, in particular to a pipeline dredging device.
Background
The pipeline dredging is to dredge the pipeline, clear up wastes such as sludge and the like in the pipeline and keep the pipeline smooth for a long time so as to prevent waterlogging in cities, and the pipeline is not periodically dredged to cause excessive sewage flow to pollute the environment and bring troubles to life of people. Generally dredging the inner wall of the hydraulic engineering pipeline, generally manually dredging the inner wall of the hydraulic engineering pipeline, which has large demand on manpower, increases dredging cost, wastes time and labor, reduces working efficiency, and can generate toxic gas when the accumulation time of sludge wastes in the hydraulic engineering pipeline is longer, and is inconvenient for manual dredging if the diameter of the pipeline is too small, so that a plurality of dredging machines exist at present, for example, Chinese patent with the patent number of CN201711492835.3 provides a dredging device for municipal sewer pipelines, which comprises a supporting mechanism arranged on the ground of a shaft, a dredging mechanism arranged on the supporting mechanism and used for cleaning sludge, a propelling mechanism arranged on the supporting mechanism, a collecting mechanism arranged on the propelling mechanism and used for collecting sludge, and a disassembling and assembling mechanism arranged on the supporting mechanism and used for matching with the propelling mechanism, and a control mechanism which is arranged on the supporting mechanism and is used for controlling the supporting mechanism, the dredging mechanism, the propelling mechanism, the collecting mechanism and the dismounting mechanism to be matched; the invention can not consume a large amount of water, can efficiently clean the narrow underground pipeline, and can thoroughly desilt the desilting pipe by stirring the sewage and the sludge in the vertical shaft. However, when the volume of the sludge or other foreign matters in the pipeline is large or the blockage is tight, the pipeline is difficult to clean.
Disclosure of Invention
The invention aims to provide a pipeline dredging device which replaces manual dredging and solves the problem that when sludge or other foreign matters in a pipeline are large in size or are tightly blocked, the pipeline dredging device is difficult to clean.
In order to achieve the purpose, the invention provides a pipeline dredging device which comprises a base, wherein a driving motor is fixed on the base, a rotating head of the driving motor is coaxially connected with a rotating shaft through a coupler, and a stirring rod mechanism and a dredging mechanism are respectively fixed on the rotating shaft; the dredging mechanism comprises a screw rod coaxially connected with the rotating shaft, a sheath is coaxially sleeved outside the screw rod, so that the sheath can coaxially rotate along with the screw rod, a through chute along the length direction of the sheath is arranged on the sheath, a screw nut is sleeved on the screw rod, a fixed base is fixed on the outer wall of the screw nut, a first hinged seat is fixed on the fixed base, at least part of the first hinged seat penetrates through the through chute and extends to the outside of the sheath, a first crank is hinged on the first hinged seat, a second hinged seat is fixed on the outer wall of the sheath, a second crank is hinged on the second hinged seat, one end of the first crank, which is far away from the first hinged seat, is hinged with one end of the second crank, which is far away from the second hinged seat, and a support is further fixed on the first crank, a plurality of hook claws are fixed on the bracket.
Preferably, first articulated seat, first crank, second crank, the articulated seat of second, support and collude the claw and constitute and collude claw mechanism, collude claw mechanism's quantity and be no less than 3 groups, the multiunit collude claw mechanism and follow the circumferencial direction equiangular of sheath is around distributing.
Preferably, a shovel head with an arc-shaped section is fixed at one end of the base, which is close to the dredging mechanism.
Preferably, a cavity is formed inside the shovel head, a suction pipe is fixed inside the base, one end of the suction pipe extends to the outside of the base, the other end of the suction pipe is communicated with the cavity of the shovel head, and a plurality of suction holes communicated with the cavity are formed in the surface of the shovel head.
Preferably, a suction cup is fixed at one end of the base, which is far away from the dredging mechanism, and the suction cup is communicated with the suction pipe through a pipeline.
Preferably, a motor cover is fixed on the base, the driving motor is fixed inside the motor cover, a first bearing is further fixed on the motor cover, and at least part of the rotating shaft penetrates through the first bearing.
Preferably, a support frame is further fixed on the base, a second bearing is fixed on the support frame, and the rotating shaft at least partially penetrates through the second bearing.
Preferably, a plurality of road wheels are further fixed at the lower end of the base.
Preferably, a drill bit is fixed to one end of the wire lever, which is far away from the rotating shaft.
Preferably, the stirring rod mechanism comprises a mounting seat fixed on the rotating shaft, a plurality of stirring rods are fixed on the mounting seat, and blades along the length direction of the stirring rods are fixed on the side edges of the stirring rods.
The invention provides a pipeline dredging device which comprises a base, wherein a driving motor is fixed on the base, a rotating head of the driving motor is coaxially connected with a rotating shaft through a coupler, and a stirring rod mechanism and a dredging mechanism are respectively fixed on the rotating shaft; the dredging mechanism comprises a screw rod coaxially connected with the rotating shaft, a sheath is coaxially sleeved outside the screw rod, so that the sheath can coaxially rotate along with the screw rod, a through chute along the length direction of the sheath is arranged on the sheath, a screw nut is sleeved on the screw rod, a fixed base is fixed on the outer wall of the screw nut, a first hinged seat is fixed on the fixed base, at least part of the first hinged seat penetrates through the through chute and extends to the outside of the sheath, a first crank is hinged on the first hinged seat, a second hinged seat is fixed on the outer wall of the sheath, a second crank is hinged on the second hinged seat, one end of the first crank, which is far away from the first hinged seat, is hinged with one end of the second crank, which is far away from the second hinged seat, and a support is further fixed on the first crank, a plurality of hook claws are fixed on the bracket. The pipeline dredging device can be applied to the sludge cleaning of pipelines, when in use, a base is arranged in the pipeline to be cleaned, a driving mechanism can be arranged on the base, the base can move along the length direction of the pipeline, the driving motor can drive the screw rod to rotate by controlling the driving motor, a forward and backward rotation controller electrically connected with the driving motor can be arranged on the base, the driving motor can rotate forward and backward periodically, so that the screw nut reciprocates on the screw rod, the screw nut drives the first crank and the second crank to reciprocate along the vertical direction through the fixed base, the hook claw is driven to reciprocate along the radial direction of the pipeline, thereby loosening the sludge accumulated in the pipeline and leading the sludge to fall off, a stirring rod mechanism is also arranged between the dredging mechanism and the driving motor, the loosened sludge is stirred and crushed, and the base moves, the pipeline dredging device provided by the invention can firstly loosen and crush the sludge in the pipeline and then collect the sludge, so that the dredging effect and efficiency are greatly improved, and the manual dredging is replaced, so that the time and labor are saved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of a pipeline dredging device provided by the present invention;
FIG. 2 is a structural view of a dredging mechanism in the piping dredging apparatus provided by the present invention;
FIG. 3 is a side view of a dredging mechanism in the pipe dredging device provided by the present invention;
FIG. 4 is a structural diagram of a shovel head in the pipeline dredging device provided by the invention.
Description of the reference numerals
1-base 2-drive motor
3-coupler 4-motor cover
5-first bearing 6-support frame
7-rotating shaft 8-stirring rod
9-dredging mechanism 10-drill bit
11-road wheel 12-suction cup
13-suction pipe 14-shovel head
15-cavity 16-draw hole
901-wire lever 902-sheath
903-lead screw nut 904-fixed base
905-first hinged seat 906-through sliding groove
907-first crank 908-support
909-hook 910-secondary crank
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1-4: the invention provides a pipeline dredging device which comprises a base 1, wherein a driving motor 2 is fixed on the base 1, a rotating head of the driving motor 2 is coaxially connected with a rotating shaft 7 through a coupler 3, and a stirring rod mechanism 8 and a dredging mechanism 9 are respectively fixed on the rotating shaft 7; the dredging mechanism 9 comprises a wire lever 901 coaxially connected with the rotating shaft 7, a sheath 902 is coaxially sleeved outside the wire lever 901, so that the sheath 902 can coaxially rotate along with the wire lever 901, a through chute 906 is arranged on the sheath 902 along the length direction of the sheath, a screw nut 903 is sleeved on the wire lever 901, a fixed base 904 is fixed on the outer wall of the screw nut 903, a first hinge seat 905 is fixed on the fixed base 904, at least a part of the first hinge seat 905 penetrates through the through chute 906 and extends to the outside of the sheath 902, a first crank 907 is hinged on the first hinge seat 905, a second hinge seat 911 is fixed on the outer wall of the sheath 902, a second crank 910 is hinged on the second hinge seat 911, one end of the first crank 907, which is far away from the first hinge seat 905, is hinged on one end of the second crank 910, which is far away from the second seat 911, a bracket 908 is further fixed to the first crank 907, and a plurality of hooks 909 are fixed to the bracket 908. The pipeline dredging device can be applied to the sludge cleaning of pipelines, when in use, a base is arranged in the pipeline to be cleaned, a driving mechanism can be arranged on the base, the base can move along the length direction of the pipeline, the driving motor can drive the screw rod to rotate by controlling the driving motor, a forward and backward rotation controller electrically connected with the driving motor can be arranged on the base, the driving motor can rotate forward and backward periodically, so that the screw nut reciprocates on the screw rod, the screw nut drives the first crank and the second crank to reciprocate along the vertical direction through the fixed base, the hook claw is driven to reciprocate along the radial direction of the pipeline, thereby loosening the sludge accumulated in the pipeline and leading the sludge to fall off, a stirring rod mechanism is also arranged between the dredging mechanism and the driving motor, the loosened sludge is stirred and crushed, and the base moves, the pipeline dredging device provided by the invention can firstly loosen and crush the sludge in the pipeline and then collect the sludge, so that the dredging effect and efficiency are greatly improved, and the manual dredging is replaced, so that the time and labor are saved.
In a preferred embodiment of the present invention, in order to improve the loosening effect of sludge in the pipeline, the first hinged seat 905, the first crank 907, the second crank 910, the second hinged seat 911, the bracket 908 and the hook 909 form a hook mechanism, the number of the hook mechanisms is not less than 3, and a plurality of groups of the hook mechanisms are distributed around the jacket 902 at equal angles in the circumferential direction.
In a preferred embodiment of the invention, in order to facilitate the collection of loosened and crushed sludge, a shovel head 14 with an arc-shaped cross section is fixed at one end of the base 1 close to the dredging mechanism 9.
In a preferred embodiment of the present invention, in order to facilitate the absorption of the sludge collected in the shovel head 4, a cavity 15 is formed inside the shovel head 14, a suction pipe 13 is fixed inside the base 1, one end of the suction pipe 13 extends to the outside of the base 1, the other end of the suction pipe is communicated with the cavity 15 of the shovel head 14, and a plurality of suction holes 16 communicated with the cavity are formed on the surface of the shovel head 14.
In a preferred embodiment of the invention, in order to clean some foreign matters which are not completely adsorbed again, a suction cup 12 is fixed at one end of the base 1 far away from the dredging mechanism 9, and the suction cup 12 is communicated with the suction pipe 13 through a pipeline.
In a preferred embodiment of the present invention, in order to protect the driving motor and facilitate the rotation of the rotating shaft, a motor cover 4 is fixed on the base 1, the driving motor 2 is fixed inside the motor cover 4, a first bearing 5 is further fixed on the motor cover 4, and the rotating shaft 7 at least partially penetrates through the first bearing 5.
In a preferred embodiment of the present invention, in order to support the rotating shaft and facilitate the rotation thereof, a supporting frame 6 is further fixed on the base 1, a second bearing is fixed on the supporting frame 6, and the rotating shaft 7 at least partially penetrates through the second bearing.
In a preferred embodiment of the present invention, a plurality of road wheels 11 are further fixed to the lower end of the base 1.
In a preferred embodiment of the present invention, in order to increase the loosening effect on sludge, a drill bit 10 is fixed to an end of the wire lever 901 remote from the rotating shaft 7.
In a preferred embodiment of the present invention, in order to increase the loosening effect on the sludge and to increase the crushing effect on the sludge, the stirring rod mechanism 8 includes a mounting seat fixed on the rotating shaft 7, a plurality of stirring rods 8 are fixed on the mounting seat, and blades are fixed on the side edges of the stirring rods 8 along the length direction of the stirring rods 8.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The pipeline dredging device is characterized by comprising a base (1), wherein a driving motor (2) is fixed on the base (1), a rotating head of the driving motor (2) is coaxially connected with a rotating shaft (7) through a coupler (3), and a stirring rod mechanism (8) and a dredging mechanism (9) are respectively fixed on the rotating shaft (7); the dredging mechanism (9) comprises a wire lever (901) coaxially connected with the rotating shaft (7), a sheath (902) is coaxially sleeved outside the wire lever (901), so that the sheath (902) can coaxially rotate along with the wire lever (901), a through sliding groove (906) along the length direction of the sheath (902) is arranged on the sheath (902), a lead screw nut (903) is sleeved on the wire lever (901), a fixed base (904) is fixed on the outer wall of the lead screw nut (903), a first hinged seat (905) is fixed on the fixed base (904), at least part of the first hinged seat (905) penetrates through the through sliding groove (906) and extends to the outside of the sheath (902), a first crank (907) is hinged on the first hinged seat (905), a second hinged seat (911) is fixed on the outer wall of the sheath (902), and a second crank (910) is hinged on the second seat (911), one end of the first crank (907), which is far away from the first hinged seat (905), is hinged to one end of the second crank (910), which is far away from the second hinged seat (911), a support (908) is further fixed on the first crank (907), and a plurality of hooks (909) are fixed on the support (908).
2. The pipeline dredging device according to claim 1, wherein the first hinged seat (905), the first crank (907), the second crank (910), the second hinged seat (911), the bracket (908) and the claw hooks (909) form claw hook mechanisms, the number of the claw hook mechanisms is not less than 3, and a plurality of groups of the claw hook mechanisms are distributed around the jacket (902) at equal angles along the circumferential direction.
3. The pipeline dredging device according to claim 1, wherein a shovel head (14) with an arc-shaped section is fixed at one end of the base (1) close to the dredging mechanism (9).
4. The pipeline dredging device according to claim 1, wherein a cavity (15) is formed inside the shovel head (14), a suction pipe (13) is fixed inside the base (1), one end of the suction pipe (13) extends to the outside of the base (1), the other end of the suction pipe is communicated with the cavity (15) of the shovel head (14), and a plurality of suction holes (16) communicated with the cavity are formed in the surface of the shovel head (14).
5. The pipeline dredging device according to claim 4, wherein a suction cup (12) is fixed at one end of the base (1) far away from the dredging mechanism (9), and the suction cup (12) is communicated with the suction pipe (13) through a pipeline.
6. The pipeline dredging device according to claim 1, wherein a motor cover (4) is fixed on the base (1), the driving motor (2) is fixed inside the motor cover (4), a first bearing (5) is further fixed on the motor cover (4), and the rotating shaft (7) at least partially penetrates through the first bearing (5).
7. The pipeline dredging device according to claim 1, wherein a support frame (6) is further fixed on the base (1), a second bearing is fixed on the support frame (6), and the rotating shaft (7) at least partially penetrates through the second bearing.
8. The pipeline dredging device according to claim 1, wherein a plurality of road wheels (11) are further fixed at the lower end of the base (1).
9. Pipe dredging device according to claim 1, wherein a drill bit (10) is fixed to the end of the wire lever (901) remote from the rotation shaft (7).
10. The pipeline dredging device according to claim 1, wherein the stirring rod mechanism (8) comprises a mounting seat fixed on the rotating shaft (7), a plurality of stirring rods (8) are fixed on the mounting seat, and blades along the length direction of the stirring rods (8) are fixed on the side edges of the stirring rods (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011118929.6A CN112112259B (en) | 2020-10-19 | 2020-10-19 | Pipeline dredging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011118929.6A CN112112259B (en) | 2020-10-19 | 2020-10-19 | Pipeline dredging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112112259A true CN112112259A (en) | 2020-12-22 |
| CN112112259B CN112112259B (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011118929.6A Active CN112112259B (en) | 2020-10-19 | 2020-10-19 | Pipeline dredging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN112112259B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112892801A (en) * | 2021-02-03 | 2021-06-04 | 孙以民 | A automation equipment for chinese-medicinal material is smashed to pieces and is handled |
| CN112922138A (en) * | 2021-04-15 | 2021-06-08 | 广东汕泰建筑工程有限公司 | Mechanical municipal pipeline dredging equipment and dredging method thereof |
| CN113235728A (en) * | 2021-06-04 | 2021-08-10 | 江苏全心建设有限公司 | Municipal works sewer desilting device |
| CN113389263A (en) * | 2021-07-08 | 2021-09-14 | 武汉中地建通产学研工程有限公司 | Pumping-back pipe joint for dredging pipeline |
| CN113550413A (en) * | 2021-07-24 | 2021-10-26 | 时勇 | Hydraulic engineering dredging device and dredging method thereof |
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| RU2011124401A (en) * | 2011-06-16 | 2011-09-27 | Кристина Константиновна Ежова (RU) | HYDROBARODYNAMIC DEVICE FOR COMBINED CLEANING OF THE INTERNAL SURFACE OF PIPELINES |
| CN109108006A (en) * | 2018-08-07 | 2019-01-01 | 邢明的 | A kind of pipeline cleaning machine people |
| CN110331773A (en) * | 2019-07-15 | 2019-10-15 | 陈建 | A kind of pipe dredging device for municipal works |
| US20200087910A1 (en) * | 2019-09-06 | 2020-03-19 | Guozhong Wang | Urban sewer dredging apparatus |
| CN210263354U (en) * | 2019-06-04 | 2020-04-07 | 沈礼节 | Desilting robot for urban pipelines |
| CN111705913A (en) * | 2020-06-03 | 2020-09-25 | 泉州台商投资区钗旺机械设备设计室 | Walking and dredging mechanism device based on cylindrical pipeline dredging robot |
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2020
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| RU2011124401A (en) * | 2011-06-16 | 2011-09-27 | Кристина Константиновна Ежова (RU) | HYDROBARODYNAMIC DEVICE FOR COMBINED CLEANING OF THE INTERNAL SURFACE OF PIPELINES |
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| CN210263354U (en) * | 2019-06-04 | 2020-04-07 | 沈礼节 | Desilting robot for urban pipelines |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112892801A (en) * | 2021-02-03 | 2021-06-04 | 孙以民 | A automation equipment for chinese-medicinal material is smashed to pieces and is handled |
| CN112892801B (en) * | 2021-02-03 | 2022-08-09 | 孙以民 | A automation equipment for chinese-medicinal material is smashed to pieces and is handled |
| CN112922138A (en) * | 2021-04-15 | 2021-06-08 | 广东汕泰建筑工程有限公司 | Mechanical municipal pipeline dredging equipment and dredging method thereof |
| CN113235728A (en) * | 2021-06-04 | 2021-08-10 | 江苏全心建设有限公司 | Municipal works sewer desilting device |
| CN113389263A (en) * | 2021-07-08 | 2021-09-14 | 武汉中地建通产学研工程有限公司 | Pumping-back pipe joint for dredging pipeline |
| CN113550413A (en) * | 2021-07-24 | 2021-10-26 | 时勇 | Hydraulic engineering dredging device and dredging method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112112259B (en) | 2021-12-10 |
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