CN209220143U - A kind of stair cleaning machine device people - Google Patents
A kind of stair cleaning machine device people Download PDFInfo
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- CN209220143U CN209220143U CN201821533240.8U CN201821533240U CN209220143U CN 209220143 U CN209220143 U CN 209220143U CN 201821533240 U CN201821533240 U CN 201821533240U CN 209220143 U CN209220143 U CN 209220143U
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Abstract
The utility model provides a kind of stair cleaning machine device people, comprising: the component that climbs, main body, connecting component, cleaning part, dirt collection component, monitoring camera；The component plan structure of climbing is rectangular frame assembling structure；The main body is arranged in the rear side for the component that climbs, and main body with climb component and be connected by fixed beam；The rear side of main body is arranged in the connecting component, and connecting component is connected with main body by the back rest；The rear side of connecting component is arranged in the cleaning part, and cleaning part is arranged in connecting component；The inside of cleaning part is arranged in the dirt collection component；The upside of front-axle beam is arranged in the monitoring camera, and monitoring camera is bolted with front-axle beam and is connected；Improvement to existing stair clearing apparatus, the device have ladder fast and safely, movement at the uniform velocity stable and continuous, with small vibration, high flexible and controllable advantage, thus effective solution problem of the prior art and deficiency.
Description
Technical field
The utility model relates to sweeping robot technical fields, more specifically, more particularly to a kind of stair cleaning machine device
People.
Background technique
We are frequently seen the cleaning worker of cleaning corridor and stair in present society, in order to which the work for mitigating them is negative
Load, we attempt to invent a kind of sweeping robot to complete these work, with the development of society, the progress of science and technology, for body
Existing stair activity cleans full-automatic brand new ideas.
Existing Patent No. CN107752917A discloses a kind of stair clearing apparatus, including outer case, the outer case
Installed in front has controller, is provided with timer on the controller；The outer case bottom is provided with supporting mechanism, described outer
Tank ends are equipped with stair-climbing mechanism, and the outer case is internally provided with dust collection mechanism, and the dust collection mechanism lower end is equipped with clearly
Sweep mechanism.Beneficial effect is: ladder motor works, and transmits power by drive bevel gear and follow bevel gear, makes to climb
Terraced axis drives the rotation of ladder bar to carry out automatic stari creeping ladder；Under the action of dust suction pump, dust is entered by air suction opening and sweep-up pipe
Inside disposal box, the collection of dust is realized, during dust suction, under the impetus of air-flow, helical blade drives rotary shaft
Rotation realizes the automatic cleaning dust suction to stair to drive cleaning disc spins；Device can by realize automatic stari creeping ladder,
Automatic cleaning dust suction reduces the amount of labour of stair cleaning, helps to improve stair and cleans effect and efficiency.
It is insufficient with the following such as the stair cleaning machine device people of above-mentioned patent disclosure:
1, its ladder technology of existing stair clearing apparatus is not mature enough, and there are unreasonable structural design, stability are poor；
2, the prior art, which can not achieve, flexibly turns to, and operating difficulties is applicable only to specific stair；
3, vehicle body lacks installation high definition camera device, cannot monitor in real time, it is ensured that machine operation state.
In view of this, being studied improvement for existing problem, a kind of stair cleaning machine device people is provided, it is intended to by this
Technology achievees the purpose that solve the problems, such as and improves practical value.
Utility model content
It is mentioned above in the background art to solve the purpose of this utility model is to provide a kind of stair cleaning machine device people
Its ladder technology of existing stair clearing apparatus is not mature enough, and there are unreasonable structural design, stability are poor, the prior art cannot
Realization flexibly turns to, operating difficulties, is applicable only to specific stair, and vehicle body lacks installation high definition camera device, cannot supervise in real time
Control, it is ensured that the problem of machine operation state and deficiency.
To achieve the above object, the utility model provides a kind of stair cleaning machine device people, by technological means in detail below
Reached:
A kind of stair cleaning machine device people, comprising: the component that climbs, main body, connecting component, cleaning part, dirt collection component, monitoring
Camera, front-axle beam, movable pulley, driving motor, fixed beam, promotes motor, PLC controller, lithium battery, the back rest, hydraulic drive at curved beam
Dynamic device, driving crossbeam, brusher, connecting shaft, cleans motor, dust collecting duct, air suction device, filter, dirt collection at hydraulically extensible column
Case；The component plan structure of climbing is rectangular frame assembling structure；The main body is arranged in the rear side for the component that climbs, and main body with
The component that climbs is connected by fixed beam；After the rear side of main body is arranged in the connecting component, and connecting component and main body pass through
Beam is connected；The rear side of connecting component is arranged in the cleaning part, and cleaning part is arranged in connecting component；The dirt collection portion
The inside of cleaning part is arranged in part；The upside of front-axle beam is arranged in the monitoring camera, and monitoring camera passes through with front-axle beam
Bolt is connected to a fixed；The component that climbs includes: curved beam, front-axle beam, movable pulley, driving motor；The front-axle beam is arranged in curved beam
Front, and front-axle beam is connected with curved beam by welding manner；The side of front-axle beam is arranged in the movable pulley, and movable pulley is with before
Beam is connected by driving motor and fixed plate；The main body includes: fixed beam, promotes motor, PLC controller, lithium battery；Institute
It states and promotes the upside that fixed beam is arranged in motor, and promote motor and be bolted with fixed beam and is connected；The PLC control
The upside of fixed beam is arranged in device, and PLC controller is bolted with fixed beam and is connected；The lithium battery setting is solid
Determine the upside of beam, and lithium battery is bolted with fixed beam and is connected；The connecting component includes: the back rest, hydraulic-driven
Device, hydraulically extensible column；The upside of the back rest is arranged in the fluid pressure drive device, and fluid pressure drive device and the back rest pass through bolt
Fixed form is connected；The side of fluid pressure drive device, and hydraulically extensible column and hydraulic-driven is arranged in the hydraulically extensible column
Device is connected by rotating base；The cleaning part includes: driving crossbeam, brusher, connecting shaft, cleans motor；It is described
The downside of driving crossbeam is arranged in brusher, and brusher is connected with driving crossbeam by connecting shaft；The cleaning motor is set
It sets in the side of driving crossbeam, and cleans motor and be connected with driving crossbeam by transmission belt；The dirt collection component includes: dust
Pipeline, air suction device, filter, sludge collecting box；The side of dust collecting duct is arranged in the air suction device, and air suction device and dust collecting duct are logical
Chimeric mode is crossed to be connected；The inside of sludge collecting box is arranged in the filter, and filter passes through chimeric mode phase with sludge collecting box
Connection.
As advanced optimizing for the technical program, a kind of stair cleaning machine device people's curved beam of the utility model is bending knot
Structure, and curved beam is provided at two the front for the component that climbs is symmetrical.
As advanced optimizing for the technical program, a kind of stair cleaning machine device people's movable pulley of the utility model is provided with altogether
At six, and this at six movable pulley be separately positioned on the two sides of front-axle beam and the two sides of fixed beam.
As advanced optimizing for the technical program, a kind of stair cleaning machine device people's driving motor of the utility model is arranged altogether
Have at six, and this at six driving motor be respectively arranged with the inside of movable pulley at six.
As advanced optimizing for the technical program, a kind of stair cleaning machine device human agent's plan structure of the utility model is in
I-shaped shape, and the side view structure of main body is in inverted U-shape.
As advanced optimizing for the technical program, a kind of stair cleaning machine device people of the utility model promotes motor and is arranged altogether
Have at two, and this promotes motor at two and is arranged in fixed beam left and right ends and is connected to curved beam.
As advanced optimizing for the technical program, a kind of stair cleaning machine device people of the utility model drives the middle part of crossbeam
It is provided with belt pulley at one, and the both ends of crossbeam is driven to be provided with bevel gear.
As advanced optimizing for the technical program, a kind of stair cleaning machine device people brusher of the utility model and connecting shaft
It is provided at two altogether in the lower part of driving crossbeam, and is provided with bevel gear at the top of connecting shaft.
As advanced optimizing for the technical program, a kind of stair cleaning machine device people dust collecting duct of the utility model, air draught
Device, filter and sludge collecting box are the dirt collection component of the device, and air suction device is connected with filter by pipeline.
Due to the application of the above technical scheme, the utility model has the advantage that compared with prior art
1, a kind of stair cleaning machine device people of the utility model passes through the climbing device for being arranged by curved beam and being promoted motor form,
Make the device ladder fast and safely, to having good adaptability under the environment such as stair, uneven ground, barrier.
2, a kind of stair cleaning machine device people of the utility model is by movable pulley at setting six, and this at six on the inside of movable pulley
It is provided with driving motor, the device is made to make movement at the uniform velocity stable and continuous, it is with small vibration, it is noiseless, it is capable of the multi-faceted of uneven ground
It is moved along any direction or Arbitrary Rotation, there is high flexibility.
3, a kind of stair cleaning machine device people of the utility model is by monitoring camera at setting one, so as to the device
Operation monitored in real time, the controllability of realization device.
4, the utility model has ladder fast and safely by the improvement to existing stair clearing apparatus, and movement is at the uniform velocity flat
It is steady continuous, with small vibration, high flexible and controllable advantage, so that effective solution the utility model is at background technique one
The problem of middle proposition and deficiency.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.In attached drawing
In:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the overlooking structure diagram of the utility model；
Fig. 3 is the cleaning part structural schematic diagram of the utility model；
Fig. 4 is the dirt collection modular construction schematic diagram of the utility model；
Fig. 5 is the PLC control schematic diagram of the utility model.
In figure: the component 1 that climbs, main body 2, connecting component 3, cleaning part 4, dirt collection component 5, monitoring camera 6, curved beam
101, front-axle beam 102, movable pulley 103, driving motor 104, fixed beam 201, promotion motor 202, PLC controller 203, lithium battery
204, the back rest 301, fluid pressure drive device 302, hydraulically extensible column 303, driving crossbeam 401, brusher 402, connecting shaft 403, clear
Sweep motor 404, dust collecting duct 501, air suction device 502, filter 503, sludge collecting box 504.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
It should be noted that in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than a；The instructions such as term " on ", "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion "
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification
Description, rather than the device or element of indication or suggestion meaning must have a particular orientation, constructed and grasped with specific orientation
Make, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second ", " third " etc. are used for description purposes only, it is not understood to indicate or imply
Relative importance.
Meanwhile in the description of the present invention, unless otherwise clearly defined and limited, term " connected ", " connection "
It shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For the general of this field
For logical technical staff, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Referring to Figure 1 to Fig. 5, the utility model provides the particular technique embodiment of stair cleaning machine device people a kind of:
A kind of stair cleaning machine device people, comprising: the component 1 that climbs, main body 2, connecting component 3, cleaning part 4, dirt collection component
5, monitoring camera 6, curved beam 101, front-axle beam 102, movable pulley 103, driving motor 104, fixed beam 201, promotion motor 202, PLC
Controller 203, lithium battery 204, the back rest 301, fluid pressure drive device 302, hydraulically extensible column 303, driving crossbeam 401, brusher
402, connecting shaft 403, cleaning motor 404, dust collecting duct 501, air suction device 502, filter 503, sludge collecting box 504；Climb component 1
Plan structure is rectangular frame assembling structure；The rear side for the component 1 that climbs is arranged in main body 2, and main body 2 and the component 1 that climbs pass through admittedly
Determine beam 201 to be connected；The rear side of main body 2 is arranged in connecting component 3, and connecting component 3 is connected with main body 2 by the back rest 301；
The rear side of connecting component 3 is arranged in cleaning part 4, and cleaning part 4 is arranged in connecting component 3；The setting of dirt collection component 5 is cleaning
The inside of component 4；The upside of front-axle beam 102 is arranged in monitoring camera 6, and monitoring camera 6 is bolted with front-axle beam 102
It is connected；The component 1 that climbs includes: curved beam 101, front-axle beam 102, movable pulley 103, driving motor 104；Front-axle beam 102 is arranged in curved beam
101 front, and front-axle beam 102 is connected with curved beam 101 by welding manner；The side of front-axle beam 102 is arranged in movable pulley 103,
And movable pulley 103 is connected with front-axle beam 102 by driving motor 104 and fixed plate；Main body 2 includes: fixed beam 201, promotes electricity
Machine 202, PLC controller 203, lithium battery 204；Promote motor 202 and the upside of fixed beam 201 be set, and promoted motor 202 with
Fixed beam 201, which is bolted, to be connected；The upside of fixed beam 201, and PLC controller 203 is arranged in PLC controller 203
It is bolted and is connected with fixed beam 201；Lithium battery 204 is arranged in the upside of fixed beam 201, and lithium battery 204 and solid
Determine beam 201 and be bolted to be connected；Connecting component 3 includes: the back rest 301, fluid pressure drive device 302, hydraulically extensible column
303；The upside of the back rest 301 is arranged in fluid pressure drive device 302, and fluid pressure drive device 302 is bolted with the back rest 301
Mode is connected；The side of fluid pressure drive device 302, and hydraulically extensible column 303 and hydraulic-driven is arranged in hydraulically extensible column 303
Device 302 is connected by rotating base；Cleaning part 4 includes: driving crossbeam 401, brusher 402, connecting shaft 403, cleans
Motor 404；The downside of driving crossbeam 401 is arranged in brusher 402, and brusher 402 and driving crossbeam 401 pass through connecting shaft
403 are connected；The side that driving crossbeam 401 is arranged in motor 404 is cleaned, and cleans motor 404 and crossbeam 401 is driven to pass through biography
Dynamic band is connected；Dirt collection component 5 includes: dust collecting duct 501, air suction device 502, filter 503, sludge collecting box 504；Air suction device 502
The side of dust collecting duct 501 is set, and air suction device 502 is connected with dust collecting duct 501 by chimeric mode；Filter 503
The inside of sludge collecting box 504 is set, and filter 503 is connected with sludge collecting box 504 by chimeric mode.
Specifically, curved beam 101 is bending structure, and curved beam 101 is provided with the front for the component 1 that climbs is symmetrical
At two.
Specifically, movable pulley 103 is provided at six altogether, and this at six movable pulley 103 be separately positioned on the two sides of front-axle beam 102
And the two sides of fixed beam 201.
Specifically, driving motor 104 is provided at six altogether, and this at six driving motor be respectively arranged with movable pulley at six
103 inside.
Specifically, 2 plan structure of main body is in I-shaped shape, and the side view structure of main body 2 is in inverted U-shape.
It is provided at two altogether specifically, promoting motor 202, and this promotes motor at two and is arranged in fixed beam 201 or so two
It holds and is connected to curved beam 101.
Specifically, the middle part of driving crossbeam 401 is provided with belt pulley at one, and the both ends of crossbeam 401 is driven to be provided with cone
Gear.
Specifically, brusher 402 and connecting shaft 403 are provided at two altogether in the lower part of driving crossbeam 401, and connecting shaft
403 top is provided with bevel gear.
Specifically, dust collecting duct 501, air suction device 502, filter 503 and sludge collecting box 504 are the dirt collection component of the device,
And air suction device 502 is connected with filter 503 by pipeline.
Specific implementation step:
When using the device, driving motor 104 drives movable pulley 103, moves the device, and can pass through driving electricity
Machine rotation differential realizes the steering of the device, promotes motor 202 and curved beam 101 is driven to rotate, make movable pulley at the device front two
It climbs first, then rear body gradually climbs, and at least four wheels are grounded simultaneously when ladder, entire to ensure
The balance of robot；It cleans motor 404 and drives driving crossbeam 401 to rotate by belt and belt wheel, driving crossbeam 401 passes through connection
Axis 403 drives brusher 402 to carry out cleaning movement, and air suction device 502 passes through dust collecting duct 501 and passes through filter 503 for dust
It inputs into sludge collecting box 504, sludge collecting box 504 is drawing and pulling type structure, can be extracted out from the side of cleaning part 4；Fluid pressure drive device
302 drive hydraulically extensible column 303 to stretch, to control the promotion of cleaning part 4, facilitate ladder, PLC controller 203 is for being somebody's turn to do
The control of device, lithium battery 204 are used for the function of the device, and operation of the monitoring camera 6 for the device monitors, and realize the dress
The visual and controllability set.
In summary: a kind of stair cleaning machine device people, by being arranged by curved beam and being promoted the climbing device of motor form,
Movable pulley at six is set, and this is provided with driving motor on the inside of movable pulley at six, monitoring camera solves existing at setting one
There is its ladder technology of stair clearing apparatus not mature enough, there are unreasonable structural design, stability are poor, the prior art cannot be real
It now flexibly turning to, operating difficulties, is applicable only to specific stair, vehicle body lacks installation high definition camera device, it cannot monitor in real time,
The problem of ensuring machine operation state.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (9)
1. a kind of stair cleaning machine device people, comprising: the component that climbs (1), main body (2), connecting component (3), cleaning part (4), collection
Dirty component (5), monitoring camera (6), curved beam (101), front-axle beam (102), movable pulley (103), driving motor (104), fixed beam
(201), motor (202), PLC controller (203), lithium battery (204), the back rest (301), fluid pressure drive device (302), liquid are promoted
It presses telescopic mast (303), driving crossbeam (401), brusher (402), connecting shaft (403), clean motor (404), dust collecting duct
(501), air suction device (502), filter (503), sludge collecting box (504)；It is characterized by: the component that climbs (1) plan structure
For rectangular frame assembling structure；The main body (2) setting the component that climbs (1) rear side, and main body (2) and climb component (1) it is logical
Fixed beam (201) is crossed to be connected；The rear side in main body (2), and connecting component (3) and main body (2) are arranged in the connecting component (3)
It is connected by the back rest (301)；The rear side in connecting component (3) is arranged in the cleaning part (4), and cleaning part (4) is arranged
In connecting component (3)；Inside of dirt collection component (5) setting in cleaning part (4)；Monitoring camera (6) setting exists
The upside of front-axle beam (102), and monitoring camera (6) is bolted with front-axle beam (102) and is connected；The component that climbs (1)
It include: curved beam (101), front-axle beam (102), movable pulley (103), driving motor (104)；The front-axle beam (102) is arranged in curved beam
(101) front, and front-axle beam (102) is connected with curved beam (101) by welding manner；The movable pulley (103) is arranged preceding
The side of beam (102), and movable pulley (103) is connected with front-axle beam (102) by driving motor (104) and fixed plate；The master
Body (2) includes: fixed beam (201), promotes motor (202), PLC controller (203), lithium battery (204)；The promotion motor
(202) setting is in the upside of fixed beam (201), and promotes motor (202) and be bolted with fixed beam (201) and be connected；
PLC controller (203) setting is in the upside of fixed beam (201), and PLC controller (203) and fixed beam (201) pass through spiral shell
Bolt is connected to a fixed；The lithium battery (204) is arranged in the upside of fixed beam (201), and lithium battery (204) and fixed beam
(201) it is bolted and is connected；The connecting component (3) includes: the back rest (301), fluid pressure drive device (302), hydraulic
Telescopic mast (303)；The fluid pressure drive device (302) setting in the upside of the back rest (301), and fluid pressure drive device (302) with
The back rest (301) mode of being bolted is connected；The hydraulically extensible column (303) is arranged in fluid pressure drive device (302)
Side, and hydraulically extensible column (303) is connected with fluid pressure drive device (302) by rotating base；Cleaning part (4) packet
Include: driving crossbeam (401), connecting shaft (403), cleans motor (404) at brusher (402)；Brusher (402) setting exists
The downside of crossbeam (401) is driven, and brusher (402) is connected with driving crossbeam (401) by connecting shaft (403)；It is described clear
Motor (404) setting is swept in the side of driving crossbeam (401), and cleans motor (404) and crossbeam (401) is driven to pass through transmission belt
It is connected；The dirt collection component (5) includes: dust collecting duct (501), air suction device (502), filter (503), sludge collecting box (504)；
The air suction device (502) setting in the side of dust collecting duct (501), and air suction device (502) pass through with dust collecting duct (501) it is chimeric
Mode is connected；The filter (503) is arranged in the inside of sludge collecting box (504), and filter (503) and sludge collecting box (504)
It is connected by chimeric mode.
2. a kind of stair cleaning machine device people according to claim 1, it is characterised in that: the curved beam (101) is bending
Structure, and curved beam (101) is provided at two the front of the component that climbs (1) is symmetrical.
3. a kind of stair cleaning machine device people according to claim 1, it is characterised in that: the movable pulley (103) is arranged altogether
Have at six, and this at six movable pulley (103) be separately positioned on the two sides of front-axle beam (102) and the two sides of fixed beam (201).
4. a kind of stair cleaning machine device people according to claim 1, it is characterised in that: the driving motor (104) sets altogether
Be equipped at six, and this at six driving motor be respectively arranged with the insides of movable pulley at six (103).
5. a kind of stair cleaning machine device people according to claim 1, it is characterised in that: main body (2) plan structure is in
I-shaped shape, and the side view structure of main body (2) is in inverted U-shape.
6. a kind of stair cleaning machine device people according to claim 1, it is characterised in that: the promotion motor (202) sets altogether
It is equipped at two, and this promotes motor at two and is arranged in fixed beam (201) left and right ends and is connected to curved beam (101).
7. a kind of stair cleaning machine device people according to claim 1, it is characterised in that: in the driving crossbeam (401)
Portion is provided with belt pulley at one, and the both ends of crossbeam (401) is driven to be provided with bevel gear.
8. a kind of stair cleaning machine device people according to claim 1, it is characterised in that: the brusher (402) with connect
Axis (403) is provided at two altogether in the lower part of driving crossbeam (401), and is provided with bevel gear at the top of connecting shaft (403).
9. a kind of stair cleaning machine device people according to claim 1, it is characterised in that: the dust collecting duct (501), air draught
Device (502), filter (503) and sludge collecting box (504) are the dirt collection component of the device, and air suction device (502) and filter (503)
It is connected by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821533240.8U CN209220143U (en) | 2018-09-19 | 2018-09-19 | A kind of stair cleaning machine device people |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821533240.8U CN209220143U (en) | 2018-09-19 | 2018-09-19 | A kind of stair cleaning machine device people |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209220143U true CN209220143U (en) | 2019-08-09 |
Family
ID=67498892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821533240.8U Expired - Fee Related CN209220143U (en) | 2018-09-19 | 2018-09-19 | A kind of stair cleaning machine device people |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209220143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111248813A (en) * | 2020-03-30 | 2020-06-09 | 张梦尧 | Stair cleaning device capable of automatically crawling |
-
2018
- 2018-09-19 CN CN201821533240.8U patent/CN209220143U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111248813A (en) * | 2020-03-30 | 2020-06-09 | 张梦尧 | Stair cleaning device capable of automatically crawling |
| CN111248813B (en) * | 2020-03-30 | 2021-11-30 | 浙江环艺电子科技有限公司 | Stair cleaning device capable of automatically crawling |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190809 Termination date: 20200919 |