CN111940435A - Self-descaling pipeline - Google Patents

Self-descaling pipeline Download PDF

Info

Publication number
CN111940435A
CN111940435A CN202010795045.8A CN202010795045A CN111940435A CN 111940435 A CN111940435 A CN 111940435A CN 202010795045 A CN202010795045 A CN 202010795045A CN 111940435 A CN111940435 A CN 111940435A
Authority
CN
China
Prior art keywords
wall
fixed
pipe body
descaling
energy storage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202010795045.8A
Other languages
Chinese (zh)
Inventor
宋亚玲
李看
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202010795045.8A priority Critical patent/CN111940435A/en
Publication of CN111940435A publication Critical patent/CN111940435A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027Cleaning the internal surfaces; Removal of blockages
    • B08B9/04Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/057Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices being entrained discrete elements, e.g. balls, grinding elements, brushes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00Accessories or details of general applicability for machines or apparatus for cleaning
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28Constructional aspects
    • F16L55/30Constructional aspects of the propulsion means, e.g. towed by cables
    • F16L55/32Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28Constructional aspects
    • F16L55/40Constructional aspects of the body
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00Uses or applications of pigs or moles
    • F16L2101/10Treating the inside of pipes
    • F16L2101/12Cleaning

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Cleaning In General (AREA)

Abstract

The invention discloses a self-descaling pipeline which comprises a pipe body, wherein a plurality of groups of descaling mechanisms are arranged in the pipe body, each descaling mechanism comprises a water inlet ring and a water discharge ring which are fixed on the inner wall of the pipe body, the inner wall of the pipe body is connected with an energy storage box in a sliding mode, a cleaning ring is fixed on one side, close to the water discharge ring, of each energy storage box, a plurality of brush strips are fixed on the circumferential outer wall of each cleaning ring, the inner wall of each cleaning ring is rotatably connected with a knocking plate through a torsion spring, and a piezoelectric ceramic block which is abutted against the knocking plates is embedded in the side wall of each energy. Has the advantages that: according to the invention, the plurality of groups of descaling mechanisms are arranged, so that the interior of the pipe body is comprehensively covered, the distance between the descaling mechanisms is controllable, the pipe body can adapt to various pipe bodies, the cleaning ring moves under the impact of sewage, the inner wall of the pipe body is scraped and cleaned, the dirt cannot be gathered for a long time, and meanwhile, manual management is not needed.

Description

Self-descaling pipeline
Technical Field
The invention relates to the technical field of water pipes, in particular to a self-descaling pipeline.
Background
Water is a life source and is necessary for people's life, water is needed in both family life and industrial processing, and water supply and discharge are generally carried out by using a water pipe as a medium, so the reliability of water utilization is directly influenced by the quality of the water pipe;
the water body contains a large amount of microorganisms and impurities, and the microorganisms and the impurities are attached to the inner wall of the water pipe in the process of transmission through the water discharge pipe, so that the water pipe is aged over time, and meanwhile, the water discharge pipe is easy to crack, and the service life of the water discharge pipe is influenced; especially, in the water body which is not subjected to purification treatment, a large amount of bacteria are remained on the surface of the drain pipe, the bacteria are bred in a large amount in a humid environment, peculiar smell is generated sometimes, the water body is polluted even, the life health of downstream residents and aquatic organisms is influenced, and the ecological balance is seriously damaged.
Disclosure of Invention
The invention aims to solve the problem that dirt in a pipeline cannot be cleaned in time in the prior art, and provides a self-descaling pipeline.
In order to achieve the purpose, the invention adopts the following technical scheme: a self-descaling pipeline comprises a pipe body, wherein a plurality of groups of descaling mechanisms are arranged in the pipe body, each descaling mechanism comprises a water inlet ring and a water discharge ring which are fixed on the inner wall of the pipe body, the inner wall of the pipe body is connected with an energy storage box in a sliding mode, a cleaning ring is fixed on one side, close to the water discharge ring, of the energy storage box, a plurality of brush strips are fixed on the circumferential outer wall of the cleaning ring, the inner wall of the cleaning ring is rotatably connected with a knocking plate through a torsion spring, and a piezoelectric ceramic block which is abutted against the knocking plate is embedded in the side wall of the energy;
the inner wall of energy storage case runs through the rotation through the torsional spring and is connected with the pivot, the both ends of pivot all are fixed with the gyro wheel that offsets with the body inner wall, the circumference lateral wall of pivot rotates through one-way bearing and is connected with the swivel, the bottom of swivel is fixed with the ejector pad, the interior bottom of energy storage case is fixed with the promotion case, the inside that promotes the case is equipped with pushing mechanism, the circumference lateral wall of pivot is fixed with the ratchet, the spacing groove has been seted up to the inner wall of energy storage case, the inside of spacing groove is equipped with clamping mechanism, the inner wall of energy storage case is fixed with supplies with condenser, triggering capacitor and diode.
In the above self-descaling pipeline, the pushing mechanism comprises a push rod connected with the inner wall of the pushing box through a return spring, the push rod is in sealed penetrating sliding connection with the side wall of the pushing box, and electrorheological fluid is filled in the pushing box.
In the above self-descaling pipeline, the position-limiting mechanism includes a position-limiting block connected with the inner wall of the position-limiting groove through a position-limiting spring, the position-limiting block penetrates through the side wall of the position-limiting groove and abuts against the ratchet wheel, and an electromagnet is fixed on the inner wall of the position-limiting groove.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, the plurality of groups of descaling mechanisms are arranged, so that the interior of the pipe body is comprehensively covered, the distance between the descaling mechanisms is controllable, the pipe body can adapt to various pipe bodies, the cleaning ring moves under the impact of sewage, the scraping and cleaning of the inner wall of the pipe body are realized, the dirt cannot be accumulated for a long time, and meanwhile, manual management is not needed;
2. according to the invention, the knocking plate is arranged, so that when the knocking plate is impacted in the sewage discharge process, the knocking plate is driven to deflect, the knocking plate further impacts the piezoelectric ceramic block during rotation, the piezoelectric ceramic block is pressed to generate electricity, the electric energy is stored in the power supply capacitor and the trigger capacitor, the energy is recycled, the whole equipment is automatically powered without artificial power supply, and the electric energy is saved;
3. according to the invention, through setting the electrorheological fluid, when the piezoelectric ceramic block is impacted to generate electricity, the electrorheological fluid is solidified and expanded, so that the push rod is pushed to impact the push block, the push block drives the rotating ring and the rotating shaft to rotate, and further, the energy storage of the torsion spring on the rotating shaft is realized, and the rotating shaft cannot rotate through the design of the ratchet wheel, and the rotating ring and the push block can rotate through the design of the connection of the rotating ring and the one-way bearing of the rotating shaft, so that the circulation action is realized, and the continuous energy storage of the torsion spring on the rotating shaft is;
4. according to the cleaning device, the electromagnet is arranged, so that after the trigger capacitor is full of and broken down, the capacitor is supplied to supply power to the electromagnet, the electromagnet attracts the limiting block, the ratchet wheel is not limited any more, the rotating shaft can rapidly rotate under the action of the torsion spring on the rotating shaft, the roller rotates, the energy storage box and the cleaning ring are driven to reset, cleaning circulation is completed, dirt cannot be effectively accumulated through circulating cleaning, and the pipe body is further protected.
Drawings
FIG. 1 is a schematic structural diagram of a self-descaling pipeline according to the present invention;
FIG. 2 is a side sectional view of a self-descaling pipeline according to the present invention;
FIG. 3 is an enlarged schematic view of the energy storage tank portion of the self-descaling pipeline according to the present invention;
fig. 4 is a wiring circuit diagram of an electromagnet part in the self-descaling pipeline according to the present invention.
In the figure: the device comprises a pipe body 1, a water inlet ring 2, a water discharge ring 3, an energy storage tank 4, a cleaning ring 5, a brush bar 6, a knocking plate 7, a piezoelectric ceramic block 8, a rotating shaft 9, a roller 10, a rotating ring 11, a pushing block 12, a pushing box 13, a ratchet wheel 14, a limiting groove 15, an electromagnet 16, a clamping spring 17, a limiting block 18, a supply capacitor 19, a trigger capacitor 20, a diode 21, a reset spring 22 and a push rod 23.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1-4, a self-descaling pipeline comprises a pipe body 1, wherein a plurality of groups of descaling mechanisms are arranged inside the pipe body 1, each descaling mechanism comprises a water inlet ring 2 and a water discharge ring 3, which are fixed on the inner wall of the pipe body 1, the inner wall of the pipe body 1 is connected with an energy storage tank 4 in a sliding manner, one side, close to the water discharge ring 3, of each energy storage tank 4 is fixed with a cleaning ring 5, the circumferential outer wall of each cleaning ring 5 is fixed with a plurality of brush strips 6, the inner wall of each cleaning ring 5 is rotatably connected with a knocking plate 7 through a torsion spring, a piezoelectric ceramic block 8 which is abutted against the knocking plate 7 is embedded in the side wall of each energy storage tank 4, the knocking plate 7 deflects under the impact of water flow and resets under the elastic;
the inner wall of energy storage case 4 runs through to rotate through the torsional spring and is connected with pivot 9, the both ends of pivot 9 all are fixed with the gyro wheel 10 that offsets with 1 inner wall of body, the circumference lateral wall of pivot 9 is connected with swivel 11 through one-way bearing rotation, the bottom of swivel 11 is fixed with ejector pad 12, the interior bottom of energy storage case 4 is fixed with promotes case 13, the inside that promotes case 13 is equipped with pushing mechanism, the circumference lateral wall of pivot 9 is fixed with ratchet 14, spacing groove 15 has been seted up to the inner wall of energy storage case 4, the inside of spacing groove 15 is equipped with clamping mechanism, the inner wall of energy storage case 4 is fixed with supplies with condenser 19, trigger condenser 20 and diode 21.
Pushing mechanism includes and pushes away the push rod 23 that 13 inner walls are connected through reset spring 22 with pushing away, and push rod 23 and the sealed sliding connection that runs through of lateral wall that pushes away case 13, and the inside packing that pushes away case 13 has electrorheological fluids, will solidify the inflation after receiving the high voltage to push away push rod 23 and remove, make push rod 23 striking ejector pad 12, and then drive pivot 9 and rotate, and ejector pad 12 will reset under self action of gravity.
The limiting mechanism comprises a limiting block 18 connected with the inner wall of the limiting groove 15 through a limiting spring 17, the limiting block 18 penetrates through the side wall of the limiting groove 15 to be abutted against the ratchet 14, one end of the limiting block 18 close to the ratchet 14 is in a lock tongue shape, so that the ratchet wheel 14 can rotate more easily, meanwhile, the limiting block 18 plays an effective limiting role in the reverse rotation of the ratchet wheel 14, the electromagnet 16 is fixed on the inner wall of the limiting groove 15, after the electromagnet 16, the supply capacitor 19 and the trigger capacitor 20 are connected in series into a whole, and then the trigger capacitor 20 is a breakdown self-recovery type capacitor, the piezoelectric ceramic block 8 generates electricity under pressure to charge the supply capacitor 19 and the trigger capacitor 20 until the trigger capacitor 20 is full and broken down, and then the supply capacitor 19 discharges electricity to continuously supply power to the electromagnet 16, so that the electromagnet 16 keeps magnetism for a short time.
In the invention, when sewage is discharged, water flow passes through the water inlet ring 2 to impact the energy storage tank 4 and the cleaning ring 5, then passes through the water discharge ring 3 to leave the descaling mechanism, and enters the descaling mechanism of the next stage, when the sewage is discharged for the first time, the energy storage tank 4 and the cleaning ring 5 move from one end of the water inlet ring 2 to one end of the water discharge ring 3 under the impact of the sewage, the brush strip 6 on the cleaning ring 5 continuously scrapes the inner wall of the pipe body 1 in the moving process of the cleaning ring 5, so that the dirt on the inner wall of the pipe body 1 is cleaned, the cleaning ring 5 is attached to the surface of the water discharge ring 3, the sewage impact cannot drive the cleaning ring to move, only the knocking plate 7 can be pushed to rotate, and when the sewage is discharged, the sewage is not a stable and continuous process due to the limitation of pipeline turning setting or discharge interval, the flow and impact force of the sewage are in continuous change, so that the knocking plate 7 is impacted by the sewage to, thereby continuously impacting and extruding the piezoelectric ceramic block 8;
the piezoelectric ceramic block 8 is continuously charged to the supply capacitor 19 and the trigger capacitor, and simultaneously, short-time high voltage is applied to the electrorheological fluid in the push box 13, so that the electrorheological fluid is solidified and expanded under the action of high voltage, the push rod 23 is pushed to move towards the push block 12, and then the push block 12 is impacted, so that the push block 12 drives the rotating ring 11 to rotate, so that the rotating ring 11 drives the rotating shaft 9 to rotate, and the ratchet 14 rotates along with the rotation, after the electrorheological fluid is cut off and liquefied, the push rod 23 is reset under the elastic action of the reset spring 22, and simultaneously, the push block 12 automatically rotates under the action of gravity, because the rotating ring 11 is connected with the rotating shaft 9 through the one-way bearing, the rotation of the rotating ring 11 cannot form acting force on the rotating shaft 9, and the ratchet 14 cannot rotate under the limitation of the limit block 18, so that the rotating shaft 9 cannot rotate, namely, the torsion spring on the rotating, therefore, the push rod 23 can continuously impact the push block 12, so that the torsion spring on the rotating shaft 9 can continuously rotate to store energy;
until the trigger capacitor 20 is charged and broken down after a period of time, in this state, the supply capacitor 19 storing more electric energy discharges the electromagnet 16, so that the electromagnet 16 generates stronger magnetic force and generates magnetic attraction effect on the limit block 18, the limit block 18 completely enters the limit groove 15 and no longer limits the ratchet 14, so that the torsion spring on the rotating shaft 9 is no longer limited, and the torsion spring rotates under the action of self elasticity, and the self-stored energy is completely released, so that the rotating shaft 9 drives the roller 10 to rotate continuously within a certain time, so that the energy storage tank 4 and the cleaning ring 5 move towards one end of the water inlet ring 2 in the rotating process of the roller 10, so that the cleaning ring 5 returns to the original position, and simultaneously, the dirt cleaning of the inner wall of the pipe body 1 is completed in the moving process, and a cleaning cycle of the cleaning ring 5 is completed, when subsequent sewage is discharged, the cleaning ring 5 moves for descaling again, and the dirt on the inner wall of the pipe body 1 needs a certain time to gather, so that the intermittent movement of the cleaning ring 5 is enough to timely clean the dirt in the pipe body 1, and the pipe body 1 is not influenced by the gathering of the dirt.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (3)

1. A self-descaling pipeline comprises a pipe body (1), and is characterized in that a plurality of groups of descaling mechanisms are arranged inside the pipe body (1), each descaling mechanism comprises a water inlet ring (2) and a water discharge ring (3) which are fixed on the inner wall of the pipe body (1), the inner wall of the pipe body (1) is connected with an energy storage box (4) in a sliding manner, one side, close to the water discharge ring (3), of each energy storage box (4) is fixed with a cleaning ring (5), a plurality of brush strips (6) are fixed on the circumferential outer wall of each cleaning ring (5), the inner wall of each cleaning ring (5) is connected with a knocking plate (7) in a rotating manner through a torsion spring, and piezoelectric ceramic blocks (8) which are abutted against the knocking plates (7) are embedded in the side wall of each energy;
the inner wall of energy storage case (4) runs through the rotation through the torsional spring and is connected with pivot (9), the both ends of pivot (9) all are fixed with gyro wheel (10) that offset with body (1) inner wall, the circumference lateral wall of pivot (9) rotates through one-way bearing and is connected with swivel (11), the bottom of swivel (11) is fixed with ejector pad (12), the interior bottom of energy storage case (4) is fixed with promotes case (13), the inside that promotes case (13) is equipped with pushing mechanism, the circumference lateral wall of pivot (9) is fixed with ratchet (14), spacing groove (15) have been seted up to the inner wall of energy storage case (4), the inside of spacing groove (15) is equipped with screens mechanism, the inner wall of energy storage case (4) is fixed with and supplies with condenser (19), trigger condenser (20) and diode (21).
2. A self-descaling pipeline according to claim 1, characterized in that the pushing mechanism comprises a push rod (23) connected with the inner wall of the pushing box (13) through a return spring (22), the push rod (23) is connected with the side wall of the pushing box (13) in a sealing, penetrating and sliding manner, and the interior of the pushing box (13) is filled with electrorheological fluid.
3. The self-descaling pipeline according to claim 1, wherein the blocking mechanism comprises a limiting block (18) connected with the inner wall of the limiting groove (15) through a blocking spring (17), the limiting block (18) penetrates through the side wall of the limiting groove (15) to abut against the ratchet wheel (14), and an electromagnet (16) is fixed on the inner wall of the limiting groove (15).
CN202010795045.8A 2020-08-10 2020-08-10 Self-descaling pipeline Withdrawn CN111940435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010795045.8A CN111940435A (en) 2020-08-10 2020-08-10 Self-descaling pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010795045.8A CN111940435A (en) 2020-08-10 2020-08-10 Self-descaling pipeline

Publications (1)

Publication Number Publication Date
CN111940435A true CN111940435A (en) 2020-11-17

Family

ID=73333073

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010795045.8A Withdrawn CN111940435A (en) 2020-08-10 2020-08-10 Self-descaling pipeline

Country Status (1)

Country Link
CN (1) CN111940435A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111776482A (en) * 2020-07-07 2020-10-16 郑新辉 Give birth to bright commodity circulation transport case
CN112547731A (en) * 2020-11-24 2021-03-26 古格亚(温州)网络科技有限公司 Auxiliary assembly for automatically cleaning precipitated cement and improving conveying efficiency for cement transportation
CN113289994A (en) * 2021-07-09 2021-08-24 重庆交通大学 Device for preventing tunnel drain pipe crystallization from blocking

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111776482A (en) * 2020-07-07 2020-10-16 郑新辉 Give birth to bright commodity circulation transport case
CN112547731A (en) * 2020-11-24 2021-03-26 古格亚(温州)网络科技有限公司 Auxiliary assembly for automatically cleaning precipitated cement and improving conveying efficiency for cement transportation
CN113289994A (en) * 2021-07-09 2021-08-24 重庆交通大学 Device for preventing tunnel drain pipe crystallization from blocking
CN113289994B (en) * 2021-07-09 2022-06-14 重庆交通大学 Device for preventing tunnel drain pipe crystallization from blocking

Similar Documents

Publication Publication Date Title
CN111940435A (en) Self-descaling pipeline
CN113559578B (en) Automatic dredging type urban domestic sewage treatment system
CN102328820A (en) Environment-friendly sweeping device for cleaning and blow-drying of conveyer belt
CN206851976U (en) A kind of multiple purging system and its cleaning machine
CN209481214U (en) A kind of grid anti-block apparatus of sewage disposal device
CN108620397A (en) A kind of remote control type pipe cleaner and its descaling method
CN113883357A (en) Sewage conveying pipeline
CN219952108U (en) Water supply equipment with dirt cleaning structure
CN107724450A (en) A kind of house house water supply and drainage irrigation canals and ditches furrow bank clears up automation equipment descaling machine
CN108452573B (en) sewage treatment plant
CN206503731U (en) Anti-blocking immersible pump
CN109368192B (en) Self-water pressure and air pressure type conveyor belt cleaning device
CN114108793B (en) Low-pressure cleaning controller for negative-pressure drainage pipeline
CN215543431U (en) Hydraulic and hydroelectric engineering pipeline silt cleaning device
CN207285132U (en) plum cleaning device
CN215597774U (en) Air can water heater scale removal device
CN214680217U (en) Mud scraper with anti-corrosion function
CN103510580A (en) Automatic water storage tank
CN112813815A (en) Water-saving road bridge deck drainage facility
CN112893344A (en) Pipeline cleaning device
CN221030608U (en) Pipeline cleaning device with rotary structure for building water supply and drainage
CN214209536U (en) Sewage treatment equipment for city
CN221734329U (en) Cleaning device of sewage treatment pond
CN219025084U (en) High-salt water biochemical treatment equipment
CN110700499B (en) Drainage system for sponge city roof garden

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20201117

WW01 Invention patent application withdrawn after publication