CN108296235B - Sewage pipeline cleaner - Google Patents
Sewage pipeline cleaner Download PDFInfo
- Publication number
- CN108296235B CN108296235B CN201810283903.3A CN201810283903A CN108296235B CN 108296235 B CN108296235 B CN 108296235B CN 201810283903 A CN201810283903 A CN 201810283903A CN 108296235 B CN108296235 B CN 108296235B
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- Prior art keywords
- brush
- wall
- pipeline
- cleaning brush
- cleaning
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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
- B08B9/049—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled
- B08B9/051—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled the cleaning devices having internal motors, e.g. turbines for powering cleaning tools
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
- F16L55/40—Constructional aspects of the body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/10—Treating the inside of pipes
- F16L2101/12—Cleaning
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a sewage pipeline cleaner which comprises a top plate, a hydraulic pump, a motor, a first cleaning brush, a second cleaning brush, a stirring wheel, a water pipe connector, a button, a telescopic rod, a spray head, a brush head, a rotary plate, a brush, a movable rod and a connecting block. The invention has the beneficial effects that: through the first cleaning brush of installation annular and second cleaning brush on the device outer wall, and constitute by an annular carousel and around four brush heads on the carousel outer wall, overlap one deck brush on the outer wall of brush head, and the brush head is ejecting by movable rod control, withdraw, when starting drive, the carousel begins to operate by motor drive, two cleaning brushes drive and rotate by the carousel, it is ejecting by movable rod control to brush the head, and support on the pipeline inner wall, the telescopic link of roof below is constantly flexible and impels toward pipeline depths gradually by hydraulic pump control, thereby make the device can be more abundant clear up the pipeline inner wall when putting into sewer line inside.
Description
Technical Field
The invention relates to a cleaning device, in particular to a sewage pipeline cleaner, and belongs to the field of sewage pipeline treatment.
Background
Sewage pipes are the main parts of daily life and industrial manufacturing, and are the pipes for discharging sewage, no matter in residential areas, streets and factories, sewage pipes are needed for sewage discharge. Because the sewage pipeline contacts with sewage for a long time, stains are inevitably left on the inner wall of the pipeline, some corrosive stains stay on the inner wall of the pipeline for a long time, and the service life of the pipeline is greatly reduced, so that the sewage pipeline needs a cleaning device to clean the pipe wall when in use.
But current a cleaning device for sewer line still has certain defect when using, owing to be limited to the size of pipeline inner wall at clean in-process, hardly with pipeline inner wall clean up, manual cleaning is also comparatively troublesome moreover, wastes time and energy, if meet the pipeline jam during the clearance, then more troublesome.
Disclosure of Invention
It is an object of the present invention to provide a sewer cleaner which solves the above problems.
The invention achieves the above objects by the following technical scheme, a sewage conduit cleaner comprises a top plate, a hydraulic pump, a motor, a first cleaning brush and a second cleaning brush, the top plate is provided with a water pipe interface, one side of the water pipe interface is provided with a button, a telescopic rod is arranged below the top plate and is connected with a hydraulic pump, a motor is arranged below the hydraulic pump, two spray heads are installed on the outer wall of the hydraulic pump, a first cleaning brush is installed below the motor, a second cleaning brush is installed below the first cleaning brush, and the middle parts of the first cleaning brush and the second cleaning brush are respectively provided with a rotating ring, four brush heads are arranged on the outer wall of the rotating ring, the brush head is fixedly connected with the rotating ring through a connecting block, a movable rod is arranged on one side of the connecting block, one end of the movable rod is connected with the brush head, a layer of brush is sleeved on the outer wall of the brush head, and a stirring wheel is installed below the second cleaning brush.
As a technical optimization scheme of the invention, the brush head is formed by connecting a plurality of elastic pieces and the scraping plates in a staggered manner, and the elastic pieces are used for providing outward tension for the scraping plates, so that the scraping plates are tightly attached to the inner wall of the pipeline, and the dirt on the inner wall of the pipeline can be favorably scraped.
As a technical optimization scheme of the invention, the elastic element is one of a cylindrical spring and a plate spring. When the cylindrical spring is selected, the shape of the scraper is of an isosceles triangle structure, an angle formed by two equal waist sides of the scraper is in contact with the inner wall of the pipeline, a surface formed by the two equal waist sides of the scraper is of a wave-shaped structure, tooth grooves are formed in the side edge formed by the isosceles sides of the scraper, and the tooth grooves are arranged along the length direction of the equal waist sides of the isosceles triangle; the tooth's socket that the scraper blade lateral wall set up is favorable to scraping off pipeline inner wall filth, has better clearance effect. When chooseing for use the leaf spring, the scraper blade adopts the rectangle structure, the great plane and the pipeline inner wall contact of scraper blade, and the contact surface of scraper blade and pipeline inner wall is provided with the wave cut-off groove that the cross-sectional shape is triangle-shaped, cuts-off the groove and arranges along the direction of striking off of scraper blade, and the equidistant a plurality of scrubbing boards that are equipped with in bottom of cut-off groove, and the root of scrubbing board is equipped with the blowoff hole, and the blowoff hole runs through the scraper blade by the bottom of cut-off groove, the scrubbing board arranges along striking off the direction slope, for improving the scrubbing effect, the scrubbing board has certain guide effect this moment, is favorable to the filth to get into the blowoff hole, and the leaf spring replaces to have certain elastic bamboo, is.
Preferably, in order to make the device have good waterproof performance, thereby effectively avoiding the damage caused by water entering the interior of the device, the hydraulic pump and the motor are both wrapped by the shell of the sealing structure.
Preferably, in order to ensure that the level accuracy of the spray from the spray head is high, the cleaned sundries are directly flushed, an inclined angle of 30 degrees is formed between the spray head and the outer wall of the hydraulic pump, and the bottom of the spray head is aligned with the first cleaning brush.
Preferably, in order to enable each component in the device to have a sufficient power source during operation, the telescopic rod is connected with the hydraulic pump through a hydraulic pipe in the hydraulic pump, and the first cleaning brush, the second cleaning brush and the stirring wheel are connected with the motor through wires.
Preferably, in order to enable the brush head to be tightly propped against the inner wall of the pipeline, so as to ensure the cleaning effect, a spring is sleeved on the movable rod between the brush head and the connecting block, and two ends of the spring are respectively propped against the brush head and the connecting block.
The invention has the beneficial effects that: through the first cleaning brush of installation annular and second cleaning brush at the device outer wall, two cleaning brush specifications are the same, and constitute by an annular change and around four brush heads on the change outer wall, the one deck brush is put to the cover on the first outer wall of brush, and the brush head is ejecting by movable rod control, withdraw, when starting drive, the change begins to operate by motor drive, two cleaning brushes drive and rotate by the change, it is ejecting by movable rod control to brush the head, and support on the pipeline inner wall, the telescopic link of roof below is constantly flexible and impel toward the pipeline depths by hydraulic pump control gradually, thereby make the device can be more abundant clear up the pipeline inner wall when putting into sewer pipe inside. Through installing two shower nozzles above first cleaning brush, the brush head is constantly sprayed water and is washed away the debris that brush got off when the clean pipe wall. Through stirring the wheel at device bottom installation, stir the wheel by motor drive, when the device advances to meet the condition that the pipeline is blockked up toward the pipeline depths, stir the function of wheel and can also play the effect of dredging the pipeline.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a first cleaning brush according to the present invention;
FIG. 3 is a top view of a first cleaning brush of the present invention;
fig. 4 is a schematic view of a brush head structure of the present invention;
FIG. 5 is an embodiment of a squeegee of the invention;
FIG. 6 is another embodiment of the squeegee of the invention;
in the figure: 1. roof, 2, hydraulic pump, 3, motor, 4, first cleaning brush, 5, second cleaning brush, 6, stirring wheel, 7, water pipe connector, 8, button, 9, telescopic link, 10, shower nozzle, 11, brush head, 12, change, 13, brush, 14, movable rod, 15, link block, 31, installation axle, 16, scraper blade, 17, cylindrical spring, 18, leaf spring, 19, tooth's socket, 20, cut apart the groove, 21, scrubbing board, 22, blowoff hole, 23, wave structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the sewage pipeline cleaner of the present invention comprises a top plate 1, a hydraulic pump 2, a motor 3, a first cleaning brush 4 and a second cleaning brush 5, wherein the top plate 1 is provided with a water pipe connector 7, the water pipe connector 7 is in threaded connection with the top plate 1, the top plate 1 is convenient to place during transportation, the water pipe connector 7 is prevented from bending, a button 8 is installed on one side of the water pipe connector 7, an expansion link 9 is installed below the top plate 1, the top plate 1 is connected to the top of the expansion link 9 through threads, the expansion link 9 is connected with the hydraulic pump 2 through a hydraulic pipeline, the motor 3 is installed below the hydraulic pump 2 through a spring, the spring can realize shock absorption, the mutual interference between the hydraulic pump 2 and the motor 3 during operation is avoided, two nozzles 10 are installed on the outer wall of the hydraulic pump 2, the top plate 1 is of a hollow structure, the upper end, the connecting hole is communicated with the cavity structure, the lower surface of the top plate 1 is provided with a water outlet hole, the water outlet hole is communicated with the cavity structure, and the spray head 10 is connected with the water outlet hole through a water pipe; first cleaning brush 4 of 3 below installations of motor, first cleaning brush 4 below installation second cleaning brush 5, first cleaning brush 4 and second cleaning brush 5 are all installed on installation axle 31, installation axle 31 is connected with motor 3, motor 3 drives first cleaning brush 4 and second cleaning brush 5 through installation axle 31 and rotates, and first cleaning brush 4 all sets up change 12 with second cleaning brush 5 middle part, change 12 passes through key and installation axle 31 sliding connection, change 12 outer wall mounting four shapes are convex brush head 11, through connecting block 15 fixed connection between brush head 11 and the change 12, connecting block 15 one side installation movable rod 14, brush head 11 is connected to movable rod 14 one end, the first outer wall upper housing of brush head 11 puts one deck brush 13, second cleaning brush 5 below installation impeller 6.
As a technical optimization scheme of the invention, the brush head 11 is formed by connecting a plurality of elastic elements and the scrapers 16 in a staggered manner, and the elastic elements are used for providing outward tension for the scrapers 16, so that the scrapers 16 are tightly attached to the inner wall of the pipeline, the dirt on the inner wall of the pipeline can be favorably scraped, and the brush head is particularly suitable for cleaning the sludge on the inner wall of the pipeline.
As a technical optimization scheme of the invention, the elastic element is one of a cylindrical spring 17 and a plate spring 18. When the cylindrical spring 17 is selected, the scraper 16 is in an isosceles triangle structure, an angle formed by two equal waist edges of the scraper 16 is in contact with the inner wall of the pipeline, a surface formed by the two equal waist edges of the scraper 16 is in a wave-shaped structure 23, a tooth groove 19 is formed in a side edge formed by the equal waist edges of the scraper 16, the tooth groove 19 is arranged along the length direction of the equal waist edges of the isosceles triangle, when the scraper is used, the cylindrical spring 17 can provide more degrees of freedom, the cylindrical spring 17 is matched with the wave-shaped structure 23 of the equal waist edges of the scraper 16, so that the scraper 16 can axially shake along the pipeline, and the plurality of scrapers 16 are in snake-shaped advancing routes, and the effect of cleaning the inner wall of the pipeline; the tooth grooves 19 arranged on the side walls of the scrapers 16 are beneficial to scraping off dirt on the inner wall of the pipeline, and a good cleaning effect is achieved. When selecting for use plate spring 18, scraper blade 16 adopts the rectangle structure, scraper blade 16's great plane and the contact of pipeline inner wall, and scraper blade 16 and the contact surface of pipeline inner wall are provided with the wave segmentation groove 20 that the cross-sectional shape is triangle-shaped, segmentation groove 20 arranges along scraper blade 16's the direction of scraping off, and the bottom of segmentation groove 20 is equidistant to be equipped with a plurality of scrubbing plates 21, scrubbing plates 21's root is equipped with blowoff hole 22, blowoff hole 22 runs through scraper blade 16 by the bottom of segmentation groove 20, scrubbing plates 21 arranges along scraping off the direction slope, for improving the scrubbing effect, scrubbing plates 21 has certain guide effect this moment, be favorable to the filth to get into blowoff hole 22, plate spring 18 replaces into the bamboo that has certain elasticity, be favorable to reduce cost, and can alleviate holistic weight.
As a technical optimization scheme of the invention, the scraper 16 is made of wood with stronger water absorption, the wood has certain elasticity and better water retention, can avoid dry friction with the inner wall of the pipeline, and can obviously reduce the weight and the production cost of the invention; the scraper 16 can also be made of rubber material, and the rubber material has better corrosion resistance, so that the service life of the scraper can be prolonged.
As a technical optimization scheme of the invention, the hydraulic pump 2 and the motor 3 are both wrapped by the shell of the sealing structure, and the device has good waterproof performance, thereby effectively avoiding the damage caused by water entering the device.
As a technical optimization scheme of the invention, the spray head 10 and the outer wall of the hydraulic pump 2 form a 30-degree inclination angle, the bottom of the spray head 10 is aligned with the first cleaning brush 4, the level accuracy of the spray head 10 is high, and the cleaned impurities are directly washed away.
As a technical optimization scheme of the invention, the telescopic rod 9 is connected with the hydraulic pump 2 through a hydraulic pipe in the hydraulic pump 2, the first cleaning brush 4, the second cleaning brush 5 and the stirring wheel 6 are connected with the motor 3 through leads, and all components in the device have enough power sources during operation.
As a technical optimization scheme of the invention, a spring is sleeved on the movable rod 14 between the brush head 11 and the connecting block 15, two ends of the spring are respectively abutted against the brush head 11 and the connecting block 15, and the brush head 11 can be abutted tightly when abutted against the inner wall of a pipeline, so that the cleaning effect is ensured.
When the device is used, the annular first cleaning brush 4 and the annular second cleaning brush 5 are arranged on the outer wall of the device, the two cleaning brushes are the same in specification and are respectively composed of an annular rotating ring 12 and four brush heads 11 surrounding the outer wall of the rotating ring, a layer of brush 13 is sleeved on the outer wall of each brush head 11, the brush heads 11 are controlled to eject out and retract by movable rods 14, when the device is started, the rotating ring 12 is driven by a motor 3 to start to operate, the two cleaning brushes are driven by the rotating ring 12 to rotate, the brush heads 11 are controlled to eject out by the movable rods 14 and abut against the inner wall of a pipeline, and a telescopic rod 9 below a top plate 1 is controlled by a hydraulic pump 2 with the model of PV23 to continuously stretch out and retract and gradually push towards the deep part of the pipeline, so that the device can more fully clean the inner wall of the pipeline when being placed into a sewage pipeline. Two spray heads 10 are arranged above the first cleaning brush 4, the water pipe connector 7 is connected with a water pipe when the pipe wall is cleaned, and the brush head 10 continuously sprays water to wash away sundries brushed away. Through stirring wheel 6 at the installation of device bottom, stir wheel 6 and be driven by motor 3, when the device advances to meet the condition that the pipeline is blockked up toward the pipeline depths, stir the effect that the function of wheel 6 played the mediation pipeline.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (3)
1. The utility model provides a sewer line cleaner, includes roof (1), hydraulic pump (2), motor (3), first cleaning brush (4) and second cleaning brush (5), its characterized in that: the cleaning brush is characterized in that a water pipe interface (7) is arranged on the top plate (1), a button (8) is arranged on one side of the water pipe interface (7), a telescopic rod (9) is arranged below the top plate (1), the telescopic rod (9) is connected with a hydraulic pump (2), a motor (3) is arranged below the hydraulic pump (2), two spray heads (10) are arranged on the outer wall of the hydraulic pump (2), a first cleaning brush (4) is arranged below the motor (3), a second cleaning brush (5) is arranged below the first cleaning brush (4), a rotating ring (12) is arranged in the middle of the first cleaning brush (4) and the second cleaning brush (5), four brush heads (11) are arranged on the outer wall of the rotating ring (12), the brush heads (11) are fixedly connected with the rotating ring (12) through a connecting block (15), a movable rod (14) is arranged on one side of the connecting block (15), one end of the movable rod (14) is connected with the brush heads (11), a layer of hairbrush (13) is sleeved on the outer wall of the brush head (11), and a stirring wheel (6) is arranged below the second cleaning brush (5);
the brush head (11) is formed by connecting a plurality of elastic pieces and the scrapers (16) in a staggered manner, and the elastic pieces are used for providing outward tension for the scrapers (16), so that the scrapers (16) are tightly attached to the inner wall of the pipeline, and the dirt on the inner wall of the pipeline can be favorably scraped;
the elastic piece is one of a cylindrical spring (17) and a plate spring (18), when the cylindrical spring (17) is selected, the scraper (16) is in an isosceles triangle structure, an angle formed by two equal waist sides of the scraper (16) is contacted with the inner wall of the pipeline, a surface formed by the two equal waist sides of the scraper (16) is in a wave-shaped structure (23), a tooth groove (19) is formed in a side edge formed by the equal waist sides of the scraper (16), the tooth groove (19) is arranged along the length direction of the equal waist sides of the isosceles triangle, when the elastic piece is used, the cylindrical spring (17) can provide more degrees of freedom, and the cylindrical spring (17) is matched with the wave-shaped structure (23) of the equal waist sides of the scraper (16), so that the scraper (16) can axially swing along the pipeline, and the plurality of scrapers (16) are in a snake-shaped advancing path, and the effect of cleaning the inner wall; the tooth grooves (19) arranged on the side walls of the scrapers (16) are beneficial to scraping dirt on the inner wall of the pipeline, and the cleaning effect is good;
the elastic piece is a plate spring (18), the scraping plate (16) is of a rectangular structure, a larger plane of the scraping plate (16) is in contact with the inner wall of the pipeline, a wavy dividing groove (20) with a triangular cross section is formed in the contact surface of the scraping plate (16) and the inner wall of the pipeline, the dividing groove (20) is arranged along the scraping direction of the scraping plate (16), a plurality of dirt removing plates (21) are arranged at the bottom of the dividing groove (20) at equal intervals, a dirt discharging hole (22) is formed in the root of each dirt removing plate (21), and the dirt discharging hole (22) penetrates through the scraping plate (16) from the bottom of the dividing groove (20); the dirt removing plate (21) is obliquely arranged along the scraping direction, so that in order to improve the dirt removing effect, the dirt removing plate (21) has a certain guiding effect, dirt can enter the dirt discharging holes (22) conveniently, the plate spring (18) is replaced by bamboo with certain elasticity, the cost is reduced conveniently, and the whole weight can be reduced;
when the device is used, the annular first cleaning brush (4) and the annular second cleaning brush (5) are arranged on the outer wall of the device, the two cleaning brushes are the same in specification and are respectively composed of an annular rotating ring (12) and four brush heads (11) surrounding the outer wall of the rotating ring, a layer of brush (13) is sleeved on the outer wall of each brush head (11), the brush heads (11) are controlled to eject and retract by movable rods (14), when the device is started, the rotating ring (12) is driven by a motor (3) to start to operate, the two cleaning brushes are driven by the rotating ring (12) to rotate, the brush heads (11) are controlled to eject by the movable rods (14) and abut against the inner wall of the pipeline, and the telescopic rod (9) below the top plate (1) is controlled to continuously stretch and gradually push towards the deep part of the pipeline by a hydraulic pump (2) with the model of PV23, so that the device can more fully clean the inner wall of the pipeline when the device is placed in the sewage pipeline, two spray heads (10) are arranged above the first cleaning brush (4), a water pipe connector (7) is connected with a water pipe when the pipe wall is cleaned, and the brush heads (10) continuously spray water to wash away sundries brushed off; the stirring wheel (6) is arranged at the bottom of the device, the stirring wheel (6) is driven by the motor (3), and when the device is pushed to the deep part of the pipeline and meets the condition that the pipeline is blocked, the operation of the stirring wheel (6) plays a role in dredging the pipeline;
an inclination angle of 30 degrees is formed between the spray head (10) and the outer wall of the hydraulic pump (2), and the bottom of the spray head (10) is aligned to the first cleaning brush (4);
a spring is sleeved on the movable rod (14) between the brush head (11) and the connecting block (15), and two ends of the spring are respectively abutted against the brush head (11) and the connecting block (15).
2. A sewer cleaner according to claim 1, in which: the hydraulic pump (2) and the motor (3) are both wrapped by a shell with a sealing structure.
3. A sewer cleaner according to claim 1, in which: the telescopic rod (9) is connected with the hydraulic pump (2) through a hydraulic pipe inside the hydraulic pump (2), and the first cleaning brush (4), the second cleaning brush (5) and the stirring wheel (6) are connected with the motor (3) through wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810283903.3A CN108296235B (en) | 2018-04-02 | 2018-04-02 | Sewage pipeline cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810283903.3A CN108296235B (en) | 2018-04-02 | 2018-04-02 | Sewage pipeline cleaner |
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| Publication Number | Publication Date |
|---|---|
| CN108296235A CN108296235A (en) | 2018-07-20 |
| CN108296235B true CN108296235B (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810283903.3A Active CN108296235B (en) | 2018-04-02 | 2018-04-02 | Sewage pipeline cleaner |
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| CN (1) | CN108296235B (en) |
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