CN109719094A - Pipeline cleaning machine people - Google Patents

Pipeline cleaning machine people Download PDF

Info

Publication number
CN109719094A
CN109719094A CN201811626561.7A CN201811626561A CN109719094A CN 109719094 A CN109719094 A CN 109719094A CN 201811626561 A CN201811626561 A CN 201811626561A CN 109719094 A CN109719094 A CN 109719094A
Authority
CN
China
Prior art keywords
cutter
driving
frame assembly
machine people
cleaning machine
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Withdrawn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
CN201811626561.7A
Other languages
Chinese (zh)
Inventor
伍国果
刘辉
彭帅
王成琳
贺小龙
潘春鹏
龚练
王丽霞
吴粤华
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.)
Chongqing University of Arts and Sciences
Original Assignee
Chongqing University of Arts and Sciences
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 Chongqing University of Arts and Sciences filed Critical Chongqing University of Arts and Sciences
Priority to CN201811626561.7A priority Critical patent/CN109719094A/en
Publication of CN109719094A publication Critical patent/CN109719094A/en
Withdrawn legal-status Critical Current

Links

Landscapes

  • Sewage (AREA)

Abstract

The present invention relates to a kind of pipeline cleaning machine people, including frame assembly, it is mounted on frame assembly and drives the walking mechanism of its walking and the dredging mechanism on frame assembly head is set, the dredging mechanism includes the cutting tool assembly for being installed on frame assembly head and the cutting driving device of driving cutting tool assembly rotation, the cutting tool assembly packet cutter shaft and transmission are matched with cutter shaft and along the several groups cutters of cutter shaft axial direction arrangement, it include symmetrical two cutters centered on the radially section of cutter shaft in every group of cutter, each group cutter along bit shaft diameter to length successively shorten from cutter shaft axial centre to both ends.Well-behaved invention multiple groups cutter length gradual change, this structure meets arc structure inside pipeline, and the space that each cutter ends are cut is different, and comprehensive cutting can be carried out to rubbish, the coordinated of each cutter can effectively prevent cutter to be wound by rubbish, and this configuration has improved the cutting efficiencies of cutter.

Description

Pipeline cleaning machine people
Technical field
The invention belongs to urban water supply and sewerage technical fields, are related to the cleaning plant of sewer, in particular to a kind of pipeline is clear Manage robot.
Background technique
Drain pipe blocking is very common a kind of problem in daily life;Due to chemical substance or the day of solid refuse The product moon is tired, is easy to cause sewer blockage;Its common solution is that cleaning worker enters the artificial dredging of progress in pipeline clearly Reason, cleaning efficiency is low, and working environment is severe, and dredging personnel are caused serious peace by also frequent dangerous property gas in pipeline Full hidden danger, particularly with the sewer pipe of small diameter tube, manual cleaning difficulty is larger;Its volume of tube cleaning currently on the market It is larger, inefficient also multi-person synergy to be needed to be used cooperatively.
In view of above-mentioned insufficient and application demand, the present invention provides a kind of small in size, energy one man operation, adapts to complexity Operating condition, can check the pipeline cleaning machine people of the progress of work in real time.
Summary of the invention
In view of this, the present invention provides a kind of pipeline cleaning machine people, small in size, energy one man operation adapts to complexity Operating condition, can check the pipeline cleaning machine people of the progress of work in real time.
Pipeline cleaning machine people of the invention, including frame assembly, be mounted on frame assembly and drive its advance or fall The walking mechanism moved back and frame assembly head is set to the dredging mechanism dredged in pipeline, the dredging mechanism includes The cutting tool assembly and the rotation of driving cutting tool assembly for being installed on frame assembly head carry out cutting dredging to rubbish in pipeline and cut Driving device is cut, the cutting tool assembly includes the knife that axis is parallel to frame assembly width direction and driven device driving rotation Tool axis and transmission are matched with cutter shaft and include with knife along the several groups cutter of cutter shaft axial direction arrangement, every group of cutter Have symmetrical two cutters centered on the radially section of axis, each group cutter along bit shaft diameter to length from cutter shaft Successively shorten at axial centre to both ends.
Further, the cutter includes that several are distributed and what is radially extended cuts along cutter shaft central axis central symmetry Cutter, the cutter and cutter shaft transmission cooperate.
Further, the walking mechanism includes being set to two groups of driving wheels and the driving of frame assembly width direction two sides The power assembly of driving wheel rotation.
Further, the pipeline cleaning machine people further include be set to frame assembly tail portion for the rubbish after dredging into The cleaning mechanism of row cleaning.
Further, the end of the cutter is in axial direction bent with certain radian, the cutter of two adjacent groups cutter Bending direction is opposite.
Further, the cutter for driving cutter shaft to swing up and down it is connected between the cutter shaft and frame assembly Axial brake device.
Further, the driving wheel includes big driving wheel and coaxial arrangement outside big driving wheel and diameter is less than big drive The small driving wheel of driving wheel diameter.
Further, the cleaning mechanism includes cleaning plate and the connection for being set to frame assembly tail portion in a rotatable manner For driving the cleaning plate driving device of cleaning plate rotation between frame assembly and cleaning plate.
Further, driving wheel described in every group includes two driving wheels, and the power assembly includes being set on frame assembly It is respectively used to two driving motors of two groups of driving wheels of driving, a driving wheel in the driving motor and respective drive wheel group It is drivingly connected, is provided with a pair of sprocket on the wheel shaft of two driving wheels in the driving wheel group, this passes sprocket wheel by chain Dynamic cooperation.
Further, car light and the camera for remotely monitoring are provided on the frame assembly.
Beneficial effects of the present invention:
Cutter structure form of the present invention and internal diameter of the pipeline are adapted, and are avoided cutter from striking and are damaged cutter on pipe side wall, Cleaning machine human reriability is improved, the cutter coordinated of multiple groups carries out cutting dredging operation to the rubbish in pipeline, by In multiple groups cutter length gradual change, so that each cutter ends are sequentially connected composition convex structure when cutting, this structure is met Arc structure inside pipeline, and the space that each cutter ends are cut is different, and comprehensive cutting can be carried out to rubbish, it is each The coordinated of cutter can effectively prevent cutter to be wound by rubbish, and this configuration has improved the cutting efficiencies of cutter, reduce machine People needs the risk of maintenance down, and every group of cutter is symmetrical, the stress of robot when improving cutting, so that uniform force, avoids Due to the rollover phenomenon of unbalance stress generation when robot ambulation;
The each cutter of the present invention are mutually indepedent, when one of cutter are wound, do not influence other cutter Work, and multiple cutter have one section of bar stroke during rotating with cutter shaft, this bar stroke makes cutter exist With certain impact force when contacting with rubbish, cutting effect is enhanced;
The large and small driving wheel of the present invention is arranged so that large and small tire while the offer that lands when meeting the road surface of uneven Power makes it have good adhesive force, enhances the dynamic property of robot, tire caused by can effectively avoid because of bottom surface injustice Slipping phenomenon;It when big driving wheel is closer apart from pipe side wall, is preferentially contacted by small driving wheel with pipe side wall, improves machine Contact situation of the people with duct wall effectively prevent big driving wheel and pipeline so that big driving wheel will not contact always with duct wall Stuck phenomenon occurs for side wall;
For cutter leading portion of the invention with certain radian to curving, point of a knife part is arc, can shred the same of rubbish When prevent cutter from being snarled and pipeline will not be scratched.
Long-pending small, the energy one man operation of pipeline cleaning machine human body of the invention, adapts to complicated operating condition, can real time remote inspection Look into the progress of work.
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is isometric structural schematic diagram of the present invention;
Fig. 2 is present invention cleaning plate structural schematic diagram;
Fig. 3 is power assembly structural schematic diagram;
Fig. 4 is driving wheel structure schematic diagram;
Specific embodiment
Fig. 1 is isometric structural schematic diagram of the present invention;Fig. 2 is present invention cleaning plate structural schematic diagram;Fig. 3 is power assembly Structural schematic diagram;Fig. 4 is driving wheel structure schematic diagram;
Frame assembly length direction is its direction of travel in the present embodiment, and frame assembly head is to exist along vehicle frame length direction Its direction of travel side, frame assembly tail portion are along vehicle frame length direction in its reverse direction side;
It is as shown in the figure: including frame assembly, be mounted on frame assembly and drive its advance or fall back walking mechanism with And frame assembly head is set to the dredging mechanism dredged in pipeline, the dredging mechanism includes being installed on frame assembly The cutting tool assembly on head and driving cutting tool assembly rotation carry out the cutting driving device of cutting dredging to rubbish in pipeline, described Cutting tool assembly includes that the cutter shaft 1 that axis is parallel to frame assembly width direction and driven device driving rotates and transmission are matched It include the center-diameter with cutter shaft together in cutter shaft and along the several groups cutter 2 of cutter shaft axial direction arrangement, every group of cutter Two symmetrical cutters centered on to section, each group cutter along bit shaft diameter to length from cutter shaft axial centre to Successively shorten at both ends;Cutter used in the robot can be made of high-intensitive steel alloy, cutter length gradual change, closer to pipeline Its length of the cutter of side wall is smaller, this cutter structure form can be adapted with internal diameter of the pipeline, and cutter is avoided to strike pipe side wall Upper damage cutter, improves cleaning machine human reriability, and the cutter coordinated of multiple groups cuts the rubbish in pipeline Operation is dredged, due to multiple groups cutter length gradual change, so that each cutter ends are sequentially connected composition convex structure when cutting, this Structure meets arc structure inside pipeline, and the space that each cutter ends are cut is different, can carry out to rubbish comprehensive Cutting, the coordinated of each cutter can effectively prevent cutter to be wound by rubbish, this configuration has improved the cutting efficiency of cutter, Reducing robot needs the risk of maintenance down, and every group of cutter is symmetrical, the stress of robot when improving cutting, so that stress Uniformly, the rollover phenomenon occurred when robot ambulation due to unbalance stress is avoided.
In the present embodiment, the cutter includes that several are distributed and radially extend along cutter shaft central axis central symmetry Cutter 2a, the cutter and cutter shaft transmission cooperate;There are three cutter for each cutter setting in the present embodiment, certainly Also the cutter of other quantity can be set, details are not described herein again, and three cutter are integrated on toolframe 10, and toolframe is in circle Plate-like is simultaneously driven cooperation with cutter shaft, can be coaxially disposed and be integrally formed with cutter shaft to simplify the two structure toolframe, cutter The cutter there are three detachably connecing are connected by screw on frame, the maintenance of cutter is facilitated to replace, each cutter are mutually indepedent, When one of cutter are wound or damage, the work of other cutter is not influenced, and multiple cutter are with cutter shaft During rotation, there is one section of bar stroke, this bar stroke makes cutter when contacting with rubbish with certain impact Power enhances cutting effect, can effectively be crushed to the biggish rubbish of hardness;Cutter is symmetrical so that cutting axis stress is equal It is even, every group of cutter cutter shaft circumferential direction can interlaced arrangement, reduce the impact force that is subject to of cutting axis, improve cutting effect.
In the present embodiment, walking mechanism includes being set to two groups of driving wheels and the driving of frame assembly width direction two sides The power assembly of driving wheel rotation;For every group of driving wheel at least there are two driving wheel, dynamic structure can be internal combustion engine or motor etc. Drive system meets the power demand of robot ambulation by dynamic structure driving driving wheel.
In the present embodiment, the pipeline cleaning machine people further includes being set to frame assembly tail portion for the rubbish after dredging The cleaning mechanism that rubbish is cleared up;Robot is cut and is dredged to internal rubbish when advancing, and when robot retreats, is passed through The place that can manually clear up is gathered and shifted onto from pipeline depths to cleaning mechanism to the rubbish of place's chopping, and the robot of this structure is integrated Cutting rubbish and the function of clearing up rubbish substantially increase the efficiency of pipe-dredging in one, while avoiding and being manually entered pipe Operation in road, saves manpower, and the cleaning mode of certain cleaning mechanism is not limited to push out such mode of rubbish, can also lead to The mode of the pump housing is crossed by outside the garbage transporting to tube body after cutting, other cleaning modes can also be used, details are not described herein again.
In the present embodiment, the end of the cutter 2a is in axial direction bent with certain radian, two adjacent groups cutter Cutter bending direction is opposite;With certain radian to curving, point of a knife part is arc for cutter end, can shred rubbish It prevents cutter from being snarled simultaneously and pipeline will not be scratched, cutter end is provided with blade, when cutting rubbish, cuts first Cutter side is contacted with rubbish, be then only blade and cut to rubbish, this structure effective protection blade, and each cutting The bending part of knife can carry out comprehensive cutting and crushing to rubbish, make rubbish have axial force and axis when cutting To displacement, rubbish can be effectively loosened, enhances its cutting effect.
In the present embodiment, it is connected between the cutter shaft and frame assembly for driving cutter shaft to swing up and down it Cutter axial brake device;Cutter axial brake device is electric pushrod I 11 in the present embodiment, and wherein cutting driving device uses torque The motor of motor 12, the structure can remain to continuous running when even rotor can not rotate in motor low speed, not will cause electricity The damage of motivation, motor can provide stable torque to load;Torque motor is located at cutter shaft medium position, and cutter shaft can With the rotor in torque motor it is integrated can also be divided into two-part structure respectively with the both ends of torque motor rotor transmission match It closes, wherein I both ends of electric pushrod pass through hinge respectively and are articulated on frame assembly head and torque motor, on frame assembly head It is also hinged with follower link 13, the other end of follower link is fixedly connected with torque motor, and electric pushrod I and follower link use Mode arranged up and down, by the promotion of electric pushrod I so that follower link swing is expanded to realize swinging up and down for cutter shaft The big working range of cutter, improves the efficiency of cutter.
In the present embodiment, the driving wheel includes big driving wheel 3 and coaxial arrangement outside big driving wheel and diameter is small In the small driving wheel 4 of driving wheel diameter greatly;Small driving wheel can be driven on the wheel shaft for being matched with big driving wheel, by wheel shaft to it is big, The synchronous driving of small driving wheel, small driving wheel can also be rotatably assorted on the wheel shaft of big driving wheel, so that small driving wheel can be free Rotation, this structure large and small tire while landing when making the road surface for meeting uneven and provide power, make it have good attached Put forth effort, enhances the dynamic property of robot, tyre slip phenomenon caused by can effectively avoid because of ground injustice;When big driving wheel away from It when closer from pipe side wall, is preferentially contacted by small driving wheel with pipe side wall, improves contact situation of the robot with duct wall, So that big driving wheel will not contact always with duct wall, it effectively prevent big driving wheel and pipe side wall that stuck phenomenon occurs;It is large and small Driving wheel outer circle increases frictional force using Chevy Trucks, and details are not described herein again.
In the present embodiment, the cleaning mechanism include be set in a rotatable manner the cleaning plate 5 of frame assembly tail portion with And it is connected to frame assembly and clears up between plate for driving the cleaning plate driving device of cleaning plate rotation;The top for clearing up plate is logical The tail portion for being hingedly coupled to frame assembly is crossed, clears up between plate and frame assembly tail portion and is provided with electric pushrod II 14, it is electronic to push away The both ends of bar II pass through hinge respectively and cleaning backboard portion and frame assembly tail portion are hinged, and flexible by electric pushrod II can The angle of cleaning plate is adjusted, when robot advances, makes to clear up plate inclination by electric pushrod II, the bottom for clearing up plate is lifted not It is touched with ground, when robot retreats, adjusts the angle of cleaning plate, so that cleaning plate is in close to vertical state, cleaning Board bottom subordinate moves, so that rubbish is gathered to the rubbish after cutting and pushed to cleaning plate, cleaning board bottom portion is than pipe radius Small circular arc shovel 15, circular arc shovel, which is folded upward at and clears up, to be kept at an angle to form scoop structure between plate, through this structure Rooting out for rubbish is facilitated to gather, cleaning plate has the side wall 16 upwardly extended in the two sides of frame assembly width direction, passes through side wall Gather rubbish, prevent rubbish from covering to frame assembly, garbage shovel can be walked and will be deposited in the rubbish of duct bottom by above structure Rubbish is removed.
In the present embodiment, driving wheel described in every group includes two driving wheels, and the power assembly is total including being set to vehicle frame A drive at two driving motors for being above respectively used to two groups of driving wheels of driving, in the driving motor and respective drive wheel group Driving wheel is drivingly connected, and is provided with a pair of sprocket 8 on the wheel shaft of two driving wheels in the driving wheel group, this passes through chain to sprocket wheel The transmission cooperation of item 9;Driving motor uses worm gear reducer motor 17, this motor has large transmission ratio, and stable drive;Driving wheel passes It is dynamic to be connected on wheel shaft 19, bearing 20 is provided on wheel shaft 19, bearing is located in the bearing block on frame assembly, is driven on wheel shaft It is combined with sprocket wheel, the end of wheel shaft, which is driven in spline structure by the output shaft of shaft coupling and worm gear reducer motor, to be cooperated, and is used Bi-motor realizes four-wheel drive;By two motor independent controls, it can be achieved that the differential of two groups of driving wheels, facilitates turning for robot To ipsilateral speed is controllable, stable direction;By chain drive, nonelastic sliding and slipping phenomenon, average ratios are accurate, work Make reliably, it is high-efficient;Transmitting power is big, and overload capacity is strong, and the size of the components under identical operating condition is small;Required tensile force is small, The pressure acted on wheel shaft is small;Can in high temperature, humidity, more dirt, have pollution etc. and work in adverse circumstances;Certainly, to continue to increase The dynamic property of strong robot, four driving wheels can be driven by a motor respectively, on details are not described herein again.
In the present embodiment, car light 6 and the camera 7 for remotely monitoring are provided on the frame assembly;By taking the photograph As working condition can be observed in real time in the cooperation of head and car light.
In the present embodiment, it is internally provided with controller 18 in frame assembly, controller can be used ECU or single-chip microcontroller, pass through Controller controls two worm gear reducer motors and torque motor, so that three motors cooperate, that is, meets the row of robot The power demand walked also meets the power demand of cutter rotation, while Collaborative Control electric pushrod I and electric pushrod II work, this Place repeats no more.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this In the scope of the claims of invention.

Claims (10)

1. a kind of pipeline cleaning machine people, it is characterised in that: including frame assembly, be mounted on frame assembly and drive its advance Or fall back walking mechanism and frame assembly head is set to the dredging mechanism dredged in pipeline, the dredging mechanism Cutting tool assembly and driving cutting tool assembly rotation including being installed on frame assembly head carry out cutting dredging to rubbish in pipeline Cutting driving device, the cutting tool assembly include axis be parallel to frame assembly width direction and driven device driving rotation Cutter shaft and transmission be matched with cutter shaft and include along the several groups cutter of cutter shaft axial direction arrangement, along every group of cutter Two symmetrical cutters centered on the radially section of cutter shaft, each group cutter along bit shaft diameter to length from knife Successively shorten at tool axis axial centre to both ends.
2. pipeline cleaning machine people according to claim 1, it is characterised in that: the cutter includes several along cutter shaft The cutter that central axis central symmetry is distributed and radially extends, the cutter and cutter shaft transmission cooperate.
3. pipeline cleaning machine people according to claim 2, it is characterised in that: the end of the cutter is with certain radian It is in axial direction bent, the cutter bending direction of two adjacent groups cutter is opposite.
4. pipeline cleaning machine people according to claim 2, it is characterised in that: connect between the cutter shaft and frame assembly It is connected to the cutter axial brake device for driving cutter shaft to swing up and down it.
5. pipeline cleaning machine people according to claim 1, it is characterised in that: the walking mechanism includes being set to vehicle frame Two groups of driving wheels of assembly width direction two sides and the power assembly of driving driving wheel rotation.
6. pipeline cleaning machine people according to claim 1, it is characterised in that: the pipeline cleaning machine people further includes setting It is placed in cleaning mechanism of the frame assembly tail portion for being cleared up the rubbish after dredging.
7. pipeline cleaning machine people according to claim 5, it is characterised in that: the driving wheel include big driving wheel and It is coaxially disposed outside big driving wheel and diameter is less than the small driving wheel of big driving wheel diameter.
8. pipeline cleaning machine people according to claim 6, it is characterised in that: the cleaning mechanism includes with rotatable side Formula is set to the cleaning plate of frame assembly tail portion and is connected between frame assembly and cleaning plate for driving cleaning plate rotation Cleaning plate driving device.
9. pipeline cleaning machine people according to claim 5, it is characterised in that: driving wheel described in every group includes two drivings Wheel, the power assembly includes being set to two driving motors that two groups of driving wheels of driving are respectively used on frame assembly, described Driving motor is connect with a drive wheel in respective drive wheel group, the wheel shaft of two driving wheels in the driving wheel group On be provided with a pair of sprocket, this to sprocket wheel pass through chain drive cooperate.
10. pipeline cleaning machine people according to claim 1, it is characterised in that: be provided with car light on the frame assembly And the camera for remotely monitoring.
CN201811626561.7A 2018-12-28 2018-12-28 Pipeline cleaning machine people Withdrawn CN109719094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811626561.7A CN109719094A (en) 2018-12-28 2018-12-28 Pipeline cleaning machine people

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811626561.7A CN109719094A (en) 2018-12-28 2018-12-28 Pipeline cleaning machine people

Publications (1)

Publication Number Publication Date
CN109719094A true CN109719094A (en) 2019-05-07

Family

ID=66297831

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811626561.7A Withdrawn CN109719094A (en) 2018-12-28 2018-12-28 Pipeline cleaning machine people

Country Status (1)

Country Link
CN (1) CN109719094A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110385318A (en) * 2019-07-08 2019-10-29 湖北三峡职业技术学院 Pipe culvert silting dredges robot and dredging method
CN110499818A (en) * 2019-09-27 2019-11-26 山东英才学院 Urban pipeline dredging machine
CN113502903A (en) * 2021-07-19 2021-10-15 深圳市深水水务咨询有限公司 Large-flow-velocity underwater drainage hidden culvert defect detection equipment and use method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110385318A (en) * 2019-07-08 2019-10-29 湖北三峡职业技术学院 Pipe culvert silting dredges robot and dredging method
CN110499818A (en) * 2019-09-27 2019-11-26 山东英才学院 Urban pipeline dredging machine
CN110499818B (en) * 2019-09-27 2021-05-07 山东英才学院 Urban pipeline dredging machine
CN113502903A (en) * 2021-07-19 2021-10-15 深圳市深水水务咨询有限公司 Large-flow-velocity underwater drainage hidden culvert defect detection equipment and use method

Similar Documents

Publication Publication Date Title
CN109719094A (en) Pipeline cleaning machine people
CN204317099U (en) A kind of lawn leaves combines cleaning car
CN103422481B (en) Lake and pond sundry cleaning machine
CN210597580U (en) Pipeline dredging robot with stranding cage
CN110499818A (en) Urban pipeline dredging machine
CN111962597B (en) Desilting device based on triangular wheel sliding block link mechanism drives desilting knife to rise and fall
CN101280551B (en) Portable type multifunctional environmental sanitation machine
CN2921098Y (en) Two-stage rotary hydraulic automatic ice and snow-removing machine
CN202849991U (en) Ice and snow removing all-in-one machine
CN104429647B (en) A kind of lawn leaves combines cleaning car
CN206798489U (en) Material cleans collection device and material collection machine
CN105519454B (en) Henhouse receives dung-cart
CN112212121A (en) Municipal administration underground piping inspection robot
CN108118657B (en) A kind of road snow mantle roots out equipment
CN205546950U (en) Dung -cart is received to chicken coop
CN206061557U (en) A kind of efficient tea picking
CN212993121U (en) Small-sized hand-held pepper harvester
CN114481927A (en) Environment-friendly fallen leaf collection device that gardens were used
CN201753443U (en) Link type ice and snow breaking roller
CN212153259U (en) A mechanism that opens ice for snow breaker
CN201230480Y (en) Corn combined harvester
CN2361669Y (en) Ice-breaking and snow-shoveling machine
CN206196375U (en) A kind of obstacle avoidance crushes mowing accessory head
CN206721795U (en) A kind of engineering truck road snow removing device
CN202055219U (en) Snow removal device with simple structure

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: 20190507

WW01 Invention patent application withdrawn after publication