CN102409631B - Can automatically adjust the sweeper of height of sweeping brush - Google Patents
Can automatically adjust the sweeper of height of sweeping brush Download PDFInfo
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- CN102409631B CN102409631B CN201010291737.5A CN201010291737A CN102409631B CN 102409631 B CN102409631 B CN 102409631B CN 201010291737 A CN201010291737 A CN 201010291737A CN 102409631 B CN102409631 B CN 102409631B
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- sweeper
- sweep brush
- reciprocating
- control unit
- sweep
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- 241001417527 Pempheridae Species 0.000 title claims abstract description 49
- 238000010408 sweeping Methods 0.000 title claims abstract description 19
- 230000000875 corresponding Effects 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims abstract description 6
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 230000001939 inductive effect Effects 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims abstract description 3
- 238000004140 cleaning Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000001138 Tears Anatomy 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000001404 mediated Effects 0.000 description 1
- 230000000414 obstructive Effects 0.000 description 1
- 230000001737 promoting Effects 0.000 description 1
- 239000002965 rope Substances 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
nullThe present invention discloses a kind of sweeper that can automatically adjust height of sweeping brush，Including being provided with vehicle frame、Set of cells、Include the sweep brush motor with sweep brush、Air exhauster、Garbage collection box and the filtration disposal box being provided with dust filtration core，Sweep brush is connected with frame by lowering or hoisting gear，It also includes reciprocating drive unit、Central control unit and current sensor，Reciprocating drive unit fixed part is connected with frame，Reciprocating section is connected with the lowering or hoisting gear of fixing sweep brush motor，Current sensor signal induction installation is connected with the power supply circuits of sweep brush motor，Current sensor signal outfan is connected with central control unit，Central control unit is connected with the reciprocal drive control module of reciprocal drive division，The electric current that current sensor signal outfan is inputted by this central control unit is analyzed，Make reciprocal drive control module drive reciprocating section to make corresponding push pull maneuver regulation lowering or hoisting gear according to analysis result to move up and down.
Description
Technical field
The present invention relates to a kind of floor cleaning equipment, a kind of can according to pavement behavior be automatically adjusted height of sweeping brush can be automatic
Adjust the sweeper of height of sweeping brush.
Background technology
Sweeper is the device that ground is cleaned by a kind of sweep brush arranging rotation on the vehicle frame of controllable motion, to use on market
As a example by more sweeper, 3 sweep brush are generally installed on vehicle frame: limit brush that preposition two rotary shafts are perpendicular to the ground and in put
The main brush that rotary shaft is parallel to the ground, the motor of the rotary shaft of main brush and limit brush is all located at sweeper frame underside hinged with frame
On lowering or hoisting gear, sweep brush can be lifted by adjusting the height of this lowering or hoisting gear lifting, adjust lowering or hoisting gear and make sweep brush reduce and ground
Contact just can carry out cleaning work, and owing to sweeper typically operates in multiple occasion, ground friction coefficient is the most different, works as pavement behavior
When having rough and uneven in surface such as coefficient of friction or road surface, relative pressure and relative friction forces between sweep brush and ground all can change, frictional force mistake
Little meeting causes cleaning unclean, and frictional force is excessive, then power of motor can be caused too high, not only expends energy, and can shorten motor and hair
In the life-span of brush, particularly cause hairbrush rapid wear, cause use cost to be multiplied, secondary additionally also can be caused when pressure is excessive to raise
Dirt, is unfavorable for the thorough cleaning on ground, and therefore sweep brush should be maintained at certain frictional force scope with ground, presses between sweep brush and ground
Power is determined by the default height that reduces of lowering or hoisting gear, and sweep brush is simply reduced by the arrangement for adjusting height that the sweep brush of existing sweeper uses
At predetermined height and position, and to operate under shutdown situation, not only reduce work efficiency, and owing to rubbing between sweep brush and road surface
Wipe resistance can not Accurate Determining, therefore regulate difficult and poor for applicability, can wear and tear constantly in work process additionally, due to sweep brush, for reaching
To satisfied cleaning effect, need to ceaselessly adjust toggle angle and reduce the working depth of sweep brush, when end brush wear is to when scrapping degree, need
The sweep brush more to renew, at this moment for reducing unnecessary abrasion, it is necessary to readjusting the height between sweep brush and ground, pressure is too small
It is difficult to reach optimal using effect, the excessive abrasion being to increase sweep brush equally of pressure, produce reentrainment of dust impact and clean effect, cause
Operating with process loaded down with trivial details, and need operator to have higher operant skill and experience, cause customer using cost to rise, obstruction is swept the floor
Machine is in wider popularization and application.
Summary of the invention
The technical purpose of the present invention be to provide for a kind of can sweep the floor possess again dust-absorbing function simultaneously can automatically adjust height of sweeping brush
Sweeper.
To achieve these goals, this Floor-sweeping device of the present invention adopts the following technical scheme that, first sweeper includes being provided with driving manipulation
The vehicle frame of system, for power supply set of cells, be located on vehicle frame include the sweep brush motor with sweep brush and filter disposal box even
The air exhauster that connects, garbage collection box and be provided with the filtration disposal box of dust filtration core, the sweep brush motor of sweeper is by can freely up and down move
Dynamic lowering or hoisting gear is connected with frame, and sweep brush motor is connected with the sweeper controller of this sweeper, as the improvement of the technical program,
Automatically the sweeper adjusting height of sweeping brush of the present invention also includes reciprocating drive unit, central control unit and current sensor, back and forth drives
The reciprocating section that dynamic device has fixed part, the portion of being relatively fixed can do reciprocating linear motion, and control reciprocating section make reciprocating action
Reciprocal drive control module, fixed part is connected with frame, and reciprocating section is connected with the lowering or hoisting gear of fixing sweep brush motor, electric current pass
Sensor signal induction installation is connected with the power supply circuits of sweep brush motor, and current sensor signal outfan is connected with central control unit, in
Centre control unit is connected with the reciprocal drive control module of reciprocal drive division, and current sensor signal outfan is inputted by this central control unit
Electric current be analyzed, and according to analysis result to reciprocal drive control module send movement instruction, reciprocal drive control module is according to being connect
The movement instruction received, drives reciprocating section to make corresponding push pull maneuver and pulls described lowering or hoisting gear to move up and down, and central control unit generally wraps
Include bin and programmable device, in central control unit, preset the recommended current of a sweeper motor, i.e. predetermined current, sweeper
The coefficient of friction on road surface that contacted of sweep brush when changing, if surface friction coefficient increases, or ground has projection to cause sweeping the floor
Brush and contact between ground pressure increase time, the resistance that at this moment sweep brush is subject to increases the most accordingly, now, keep constant turn spend sweep the floor
The power of brush motor increases the most therewith, and now, the electric current of the sweep brush motor of acquisition is inputed to central control unit by current sensor, in
After centre control unit compares with predetermined current, send pull-up reciprocating drive unit to the reciprocal drive control module of reciprocating drive unit past
The instruction in motion portion again, reciprocating section is done corresponding motion and is pulled up lowering or hoisting gear motion, to mention sweep brush reduction sweep brush and ground
Frictional force between face, the operating power of the sweeper motor of constant speed rotary reduces the most accordingly, and the electric current of sweep brush motor reduces, until
After size of current in this sweep brush motor identical with predetermined current；Otherwise, if surface friction coefficient reduces, or ground has depression to lead
When the pressure causing sweep brush and contact between ground reduces, the resistance that at this moment sweep brush is subject to reduces the most accordingly, now, keeps constant turn of degree
The power of sweep brush motor diminish the most therewith, now, the electric current of the sweep brush motor of acquisition is inputed to central authorities and controls single by current sensor
Unit, after central control unit and predetermined current compare, sends the reciprocal driving of release to the reciprocal drive control module of reciprocating drive unit
The instruction of device reciprocating section, reciprocating section is done corresponding motion and is pushed down on lowering or hoisting gear motion, to reduce sweep brush, makes to sweep the floor
Frictional force between brush and ground increases, and the operating power of the sweeper motor of constant speed rotary increases the most accordingly, and the electric current of sweep brush motor becomes
Greatly, to the last the size of current in this sweep brush motor is identical with predetermined current, it is ensured that sweep brush motor is at operated at constant power.
Generally, described reciprocating drive unit is push-rod electric machine, and the support of this push-rod electric machine is connected with frame, keeps push-rod electric machine sweeping
Earth brush motor 8 lowering or hoisting gear can use the common toggle 6 hinged with frame, and one end of this toggle 6 is fixed with the frame of sweeper,
Between the lowering or hoisting gear of push-rod electric machine and sweep brush motor, use steel wire rope or the connected mode of connecting rod, keep push rod and the liter of push-rod electric machine
There is suitable degree of freedom, to ensure the normal of push-rod electric machine between falling unit；Work this push-rod electric machine by control signal cable and central authorities
Control unit connects, and described central control unit then uses PLC (Programmable logic Controller, programmable logic controller (PLC)),
Current sensor signal outfan is connected with the analog input end AD input module of this PLC, this PLC output module and reciprocating section
Reciprocal drive control module connect.
The present invention can adjust having the beneficial effects that of the sweeper of height of sweeping brush automatically, and overcoming existing sweeper can not be according to sweep brush
And height of sweeping brush is mediated the shortcoming of pressure by frictional force size between ground at any time, use technique scheme, when sweeper exists
When uneven region or the inconsistent ground of pavement behavior carry out cleaning work, when pavement behavior changes, rubbing between sweep brush and ground
Wiping power and then can change, and owing to the sweep brush of sweeper uses the powered by direct current of constant voltage, and rotating speed also keeps constant, therefore sweeps the floor
The electric current of brush motor can occur to change accordingly, and central control unit can drive reciprocating drive unit according to the feedback information of current sensor
Move accordingly, lowering or hoisting gear is raised and lowered to adjust the height between sweep brush and ground, it is achieved automatically adjust sweep brush with
The purpose of frictional ground force, can not only meet cleaning prescription, and can reduce the abrasion of sweep brush bristle.
The present invention can automatically adjust the sweeper difference with the prior art of height of sweeping brush and be, existing technology carries simply by various
Lifting device, adjusts height between sweep brush and ground according to the default stroke promoting or reducing, and sweep brush only has upper limit and lower limit
Two fixed positions, thus can not adjust sweep brush work time and ground between pressure, easily make pressure between sweep brush and ground excessive or
Too small, ground also can cause pressure between sweep brush and ground excessive when protruding, not only easy motor damage, and excessive pressure can be
Form reentrainment of dust at the limit brush of sweep brush, make the cleaning effect of sweeper decline, finely tuning manually even if increasing in traveling, also can
Because operator can not directly grasp sweeper current value size, frictional force between sweep brush and ground, the effect after therefore adjusting i.e. can not be grasped
Fruit is the most directly perceived, it is difficult to reach good Adjustment effect.
For ease of the detailed content relevant with the present invention and technology are described, accompanying drawing is the most just coordinated to illustrate.
Accompanying drawing explanation
Fig. 1, schematic block circuit diagram for sweeper；
Fig. 2, schematic diagram for road sweeper of the present invention；
Fig. 3, enlarged drawing for Fig. 2；
Fig. 4, push-rod electric machine and lowering or hoisting gear connection diagram for the first embodiment；
Fig. 5, push-rod electric machine and lowering or hoisting gear connection diagram for the second embodiment.
Detailed description of the invention
The sweeper that can automatically adjust height of sweeping brush of the present invention, is by the sweep brush motor lowering or hoisting gear 2 at existing sweeper
On, automatic sliding device is set, this automatic sliding device is connected in central control unit 100, sweep brush motor 8 connects electricity
Flow sensor 102 detects the electric current of sweep brush motor 8 at any time, and the change of electric current feeds back to central control unit 100, central authorities' control
Unit 100 processed according to the change of electric current in sweep brush motor 8, control automatic sliding device carry out corresponding action adjust sweep brush 3 with
Height between ground, thus reach to regulate the purpose of frictional resistance between sweep brush 3 and ground.
Refer to shown in Fig. 1, usual sweeper operationally because sweep brush motor 8 is by the powered by direct current of 12V, and
The rotating speed of sweep brush motor 8 remains constant, and in the case, the output moment of torsion of sweep brush motor 8 is T, and rotating speed is n, electricity
Stream is for I, and DC voltage is V, then have a following equilibrium relationships:
T*n=I*V
Therefore, T=(V/n) * I, because voltage V and rotating speed n is constant, therefore, torque T and electric current I is proportional, in phase
With on the road surface of coefficient of friction, torque T size is relevant with pressure between sweep brush 3 and ground, pressure between sweep brush 3 and ground
Time constant, torque T is relevant with the coefficient of friction on ground, nevertheless, the increase of the electric current I of sweep brush motor 8 or diminish, all
Provable torque T becomes big or diminishes, and now, either ground friction coefficient changes, or between sweep brush 3 and ground, pressure changes
Become, all can i.e. adjust the spacing of sweep brush 3 and ground by adjusting pressure between sweep brush 3 and ground, keep torque T permanent
Fixed, final body present electric current I's is constant, therefore, by monitoring the electric current of sweeper motor, adjusts between sweep brush 3 and ground high
Degree, finally can control electric current, in the range of appropriate, to make sweep brush motor 8 be operated under default power, can realize protecting sweep brush electricity
The purpose of machine 8, controls sweep brush 3 rate of wear in proper range.
Refer to shown in Fig. 2 and Fig. 3, for a kind of preferred embodiment of the present invention, in the present embodiment, first sweeper includes setting
Have drive control system vehicle frame, for power supply set of cells, be located on vehicle frame include the sweep brush motor 8 with sweep brush 3,
With filter air exhauster, garbage collection box that disposal box is connected and be provided with the filtration disposal box of dust filtration core, the sweep brush motor 8 of sweeper
Being connected with frame by the lowering or hoisting gear 2 that can freely up and down move, sweep brush motor 8 is connected with the sweeper controller of this sweeper,
As the improvement of the technical program, it is single that the sweeper automatically adjusting height of sweeping brush of the present invention also includes that reciprocating drive unit, central authorities control
Unit 100 and current sensor 102, the reciprocating section that reciprocating drive unit has fixed part, the portion of being relatively fixed can do reciprocating linear motion,
And control reciprocating section and make the reciprocal drive control module 105 of reciprocating action, fixed part is connected with frame, and reciprocating section is swept with fixing
The lowering or hoisting gear 2 of earth brush motor 8 connects, and current sensor 102 signal induction device connects with the power supply circuits 101 of sweep brush motor 8
Connecing, current sensor 102 signal output part is connected with central control unit 100, and central control unit 100 is reciprocal with reciprocating section
Drive control module 105 connects, and the electric current that current sensor 102 signal output part is inputted by this central control unit 100 is analyzed,
And according to analysis result, reciprocal drive control module 105 being sent movement instruction, reciprocal drive control module 105 is according to the fortune received
Dynamic instruction, drives reciprocating section to make corresponding push pull maneuver and pulls lowering or hoisting gear 2 to move up and down, and central control unit 100 generally includes
Bin and programmable device, preset the recommended current of a sweeper motor, i.e. predetermined current in central control unit 100, sweep the floor
When the coefficient of friction on the road surface that the sweep brush 3 of machine is contacted changes, if surface friction coefficient increases, or ground has projection to cause
When sweep brush increases with the pressure contacted between ground, the resistance that at this moment sweep brush 3 is subject to increases the most accordingly, now, keeps constant turn of degree
The power of sweep brush motor 8 increase the most therewith, now, current sensor is by the power supply circuits 101 of sweep brush motor 8 that obtain
Electric current inputs to central control unit 100, after central control unit 100 and predetermined current compare, and reciprocal to reciprocating drive unit
Drive control module 105 sends the instruction of pull-up reciprocating drive unit reciprocating section, and reciprocating section is done corresponding motion and pulled up liter
Falling unit moves, and to mention the frictional force between sweep brush reduction sweep brush and ground, the operating power of the sweeper motor of constant speed rotary is also
Corresponding reduction, the electric current of sweep brush motor 8 reduces, and to the last the size of current in this sweep brush motor 8 is identical with predetermined current；
Otherwise, if surface friction coefficient reduces, or when ground has depression to cause sweep brush with the pressure reduction contacting between ground, at this moment sweep
The resistance that scrubbing brush 3 is subject to reduces the most accordingly, now, keeps the power of the constant turn of sweep brush motor 8 spent to diminish the most therewith, now,
The electric current of the power supply circuits 101 of the sweep brush motor 8 of acquisition is inputed to central control unit 100, central control unit by current sensor
After 100 compare with predetermined current, send release reciprocating drive unit to the reciprocal drive control module 105 of reciprocating drive unit reciprocal
The instruction in motion portion, reciprocating section is done corresponding motion and is pushed down on lowering or hoisting gear motion, to reduce sweep brush, makes sweep brush 3 and ground
Frictional force between face increases, and the operating power of the sweeper motor of constant speed rotary increases the most accordingly, and the electric current of sweep brush motor 8 becomes big,
To the last the size of current in this sweep brush motor 8 is identical with predetermined current, it is ensured that sweep brush motor 8 is at operated at constant power.
Further, described reciprocating drive unit is push-rod electric machine 9, and the support of this push-rod electric machine 9 is connected with frame, push rod electricity
Push rod 90 end of machine 9 is flexibly connected with lowering or hoisting gear 2, and this push-rod electric machine 9 is by control signal cable and central control unit
100 connect, and described central control unit 100 then uses PLC (Programmable logicController, programmable logic controller (PLC)),
Current sensor 102 signal output part is connected with the analog input end AD input module 103 of this PLC, this PLC output module
104 are connected with the reciprocal drive control module 105 of reciprocating section.
Refer to shown in Fig. 4 and Fig. 5, in the present invention, push-rod electric machine 9 can be fixed on various location in frame, keeps push rod
Motor 9 can use the common toggle 6 hinged with frame at sweep brush motor 8 lowering or hoisting gear 2, one end of this toggle 6 with sweep
The frame of ground machine is fixed, and uses wire strands 91 or connecting rod 92 between push-rod electric machine 9 and sweep brush motor 8 lowering or hoisting gear 2
Connected mode, keeps having suitable degree of freedom, to ensure push-rod electric machine 9 between push rod 90 and the lowering or hoisting gear 2 of push-rod electric machine 9
Normal work.
The above embodiments are merely exemplary, under the such scheme of the present invention is instructed, those skilled in the art can be in above-mentioned reality
Carry out various improvement and deformation on the basis of executing example, and these improve or deformation is within the scope of the present invention.People in the art
Member should be understood that specific descriptions above are intended merely to explain the purpose of the present invention, is not intended to limit the present invention.The protection model of the present invention
Enclose and limited by claim and equivalent thereof.
Claims (3)
- null1. the sweeper that can automatically adjust height of sweeping brush，Including being provided with the vehicle frame driving control system、Set of cells for power supply、That is located on vehicle frame includes the sweep brush motor with sweep brush、The air exhauster being connected with filtration disposal box、Garbage collection box and the filtration disposal box being provided with dust filtration core，The sweep brush motor of sweeper is connected with frame by the lowering or hoisting gear that can freely up and down move，Sweep brush motor is connected with the sweeper controller of this sweeper，It is characterized in that: this sweeper automatically adjusting height of sweeping brush also includes reciprocating drive unit、Central control unit and current sensor，Reciprocating drive unit has fixed part、The reciprocating section that the portion of being relatively fixed can do reciprocating linear motion，And control reciprocating section and make the reciprocal drive control module of reciprocating action，Fixed part is connected with frame，Reciprocating section is connected with the lowering or hoisting gear of fixing sweep brush motor，Current sensor signal induction installation is connected with the power supply circuits of sweep brush motor，Current sensor signal outfan is connected with central control unit，Central control unit is connected with the reciprocal drive control module of reciprocating section，The electric current that current sensor signal outfan is inputted by this central control unit is analyzed，And according to analysis result, reciprocal drive control module is sent movement instruction，Reciprocal drive control module is according to the movement instruction received，Driving reciprocating section to make corresponding push pull maneuver pulls lowering or hoisting gear to move up and down，Wire strands or the connected mode of connecting rod is used between reciprocating section and lowering or hoisting gear.
- 2. the sweeper that can automatically adjust height of sweeping brush as described in claim 1, it is characterized in that: described reciprocating drive unit is push-rod electric machine, described sweep brush motor lowering or hoisting gear uses the common toggle hinged with frame, the support of this push-rod electric machine is connected with frame, one end of toggle is fixed with the frame of sweeper, and this push-rod electric machine is connected with central control unit by control signal cable.
- 3. the sweeper that can automatically adjust height of sweeping brush as described in claim 1, it is characterized in that: described central control unit is PLC, current sensor signal outfan is connected with the analog input end AD input module of this PLC, and this PLC output module is connected with the reciprocal drive control module of reciprocating section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010291737.5A CN102409631B (en) | 2010-09-25 | Can automatically adjust the sweeper of height of sweeping brush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010291737.5A CN102409631B (en) | 2010-09-25 | Can automatically adjust the sweeper of height of sweeping brush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102409631A CN102409631A (en) | 2012-04-11 |
| CN102409631B true CN102409631B (en) | 2016-12-14 |
Family
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0887468A2 (en) * | 1997-06-25 | 1998-12-30 | Electrolux Euroclean Italia S.p.A. | Motor-sweeper |
| JP2933419B2 (en) * | 1991-08-19 | 1999-08-16 | 東急車輛製造株式会社 | Road sweeper |
| DE69907981T2 (en) * | 1998-01-13 | 2004-02-26 | Tennant Co., Minneapolis | Electro-hydraulic control device for the bristle low pressure |
| CN2606026Y (en) * | 2003-03-12 | 2004-03-10 | 长沙高新技术产业开发区中标实业有限公司 | Wiper servo controller |
| CN2748503Y (en) * | 2004-04-21 | 2005-12-28 | 三一重工股份有限公司北京研究院 | Automatic positioning device for sweeping brush of sweeping car |
| CN1889882A (en) * | 2003-12-10 | 2007-01-03 | 沃维克股份有限公司 | Floor cleaning device with means for detecting the floor |
| CN201221069Y (en) * | 2008-06-26 | 2009-04-15 | 山东鲁得贝车灯股份有限公司 | Miniature electric suction sweeping type ground sweeper |
| CN201381494Y (en) * | 2009-01-21 | 2010-01-13 | 长沙中联重工科技发展股份有限公司 | Intelligent washing vehicle control system |
| CN201381493Y (en) * | 2009-03-09 | 2010-01-13 | 杭州国顺实业有限公司 | Front dumping type light-duty electric sweeper |
| CN201809735U (en) * | 2010-09-25 | 2011-04-27 | 关静雯 | Sweeper capable of automatically adjusting sweeping brush height |
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2933419B2 (en) * | 1991-08-19 | 1999-08-16 | 東急車輛製造株式会社 | Road sweeper |
| EP0887468A2 (en) * | 1997-06-25 | 1998-12-30 | Electrolux Euroclean Italia S.p.A. | Motor-sweeper |
| DE69907981T2 (en) * | 1998-01-13 | 2004-02-26 | Tennant Co., Minneapolis | Electro-hydraulic control device for the bristle low pressure |
| CN2606026Y (en) * | 2003-03-12 | 2004-03-10 | 长沙高新技术产业开发区中标实业有限公司 | Wiper servo controller |
| CN1889882A (en) * | 2003-12-10 | 2007-01-03 | 沃维克股份有限公司 | Floor cleaning device with means for detecting the floor |
| CN2748503Y (en) * | 2004-04-21 | 2005-12-28 | 三一重工股份有限公司北京研究院 | Automatic positioning device for sweeping brush of sweeping car |
| CN201221069Y (en) * | 2008-06-26 | 2009-04-15 | 山东鲁得贝车灯股份有限公司 | Miniature electric suction sweeping type ground sweeper |
| CN201381494Y (en) * | 2009-01-21 | 2010-01-13 | 长沙中联重工科技发展股份有限公司 | Intelligent washing vehicle control system |
| CN201381493Y (en) * | 2009-03-09 | 2010-01-13 | 杭州国顺实业有限公司 | Front dumping type light-duty electric sweeper |
| CN201809735U (en) * | 2010-09-25 | 2011-04-27 | 关静雯 | Sweeper capable of automatically adjusting sweeping brush height |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20140513 Address after: 528000, 45, Luo Luo Road, Chancheng District, Guangdong, Foshan Applicant after: Foshan Gemei Cleaning Equipment Co., Ltd. Address before: 528000. Room two, No. 7, Tongji West Road, Chancheng District, Guangdong, Foshan, 403 Applicant before: Guan Jingwen |
|
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Sweeper capable of automatically adjusting height of sweeping brush Effective date of registration: 20180330 Granted publication date: 20161214 Pledgee: Guangdong Nanhai Rural Commercial Bank branch branch of Limited by Share Ltd Pledgor: Foshan Gemei Cleaning Equipment Co., Ltd. Registration number: 2018440000074 |
|
| CP02 | Change in the address of a patent holder |
Address after: 528000 Guangdong Province Foshan Nanhai District Danzao Town Nanhai National Eco-industrial Demonstration Park Phoenix Avenue 8 Innovation Hardware Industry Co., Ltd. Factory 2 (Residence Declaration) Patentee after: Foshan Gemei Cleaning Equipment Co., Ltd. Address before: No. 45, Chancheng District, Chancheng District, Foshan, Guangdong Patentee before: Foshan Gemei Cleaning Equipment Co., Ltd. |