CN205165303U - Photovoltaic board cleaning device - Google Patents
Photovoltaic board cleaning device Download PDFInfo
- Publication number
- CN205165303U CN205165303U CN201520973727.8U CN201520973727U CN205165303U CN 205165303 U CN205165303 U CN 205165303U CN 201520973727 U CN201520973727 U CN 201520973727U CN 205165303 U CN205165303 U CN 205165303U
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- China
- Prior art keywords
- photovoltaic panel
- cleaning device
- cleaning
- length direction
- locating piece
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- 238000004140 cleaning Methods 0.000 title claims abstract description 111
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 238000009991 scouring Methods 0.000 claims description 45
- 238000009434 installation Methods 0.000 claims description 8
- 239000012535 impurity Substances 0.000 abstract description 23
- 239000000428 dust Substances 0.000 abstract description 5
- 241000251468 Actinopterygii Species 0.000 abstract 1
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 11
- 238000011010 flushing procedure Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Photovoltaic Devices (AREA)
- Cleaning In General (AREA)
Abstract
The utility model provides a photovoltaic board cleaning device. This photovoltaic board cleaning device includes: mounting bracket and wiper mechanism, wiper mechanism along the movably setting of length direction of mounting bracket, the wiper mechanism is used for cleaning the operation including portion of cleaning and the portion of cleaning, the portion of cleaning before the operation at by the portion of cleaning. The utility model discloses a photovoltaic board cleaning device has avoided the photovoltaic board and has cleaned a clearance getting into impurity such as leaf, dust effectively, and then leads to the fact the problem of fish tail to the photovoltaic board.
Description
Technical field
The utility model relates to cleaning equipment field, in particular to a kind of photovoltaic panel cleaning device.
Background technology
The method that current cleaning photovoltaic panel adopts is roughly divided into manual cleaning and cleaning two kinds automatically.The operating efficiency of manual cleaning is cleaned low relatively automatically, and during the photovoltaic panel of cleaning roof eminence, has danger.Automatic flushing device can improve cleaning efficiency greatly, improves generating efficiency.Automatic flushing device roughly comprises driving mechanism, walking mechanism, transmission mechanism, guide rail etc.The cost of automatic flushing device governs the development of photovoltaic panel cleaning.The kind of drive taked, guide material structure, driving mechanism etc., become the main aspect reduced costs.But in the process of cleaning device cleaning, between photovoltaic panel and cleaning device, have the impurity such as leaf, dust, easily scuffing is caused to photovoltaic panel.
Utility model content
Main purpose of the present utility model is to provide a kind of photovoltaic panel cleaning device, to solve the problem that photovoltaic panel in prior art is easily scratched in cleaning process.
To achieve these goals, according to an aspect of the present utility model, provide a kind of photovoltaic panel cleaning device, comprise installing rack; Wiper mechanism, wiper mechanism is arranged movably along the length direction of installing rack, and wiper mechanism comprises scouring portion and cleaning part, and cleaning part is used for carrying out cleaning work before scouring portion carries out scouring operation.
Further, wiper mechanism also comprises bracing frame, and bracing frame is arranged on installing rack movably, and scouring portion and cleaning part are disposed side by side on bracing frame.
Further, scouring portion comprises: mop support, and mop support is arranged on bracing frame; Mop, mop is arranged on mop support.
Further, bracing frame is provided with fixed head, fixed head is provided with installing hole, mop support comprises: installing plate, and mop is installed on a mounting board; Hold-down mechanism, hold-down mechanism is connected between fixed head and installing plate to be compressed by installing plate.
Further, fixed head is provided with installing hole, hold-down mechanism comprises: connecting rod, and the first end of connecting rod is fixedly connected with on a mounting board, and the second end of connecting rod is connected in installing hole, and the second end of connecting rod is provided with stop block; Flexible member, flexible member is set on connecting rod, and the two ends of flexible member are connected on installing plate and fixed head respectively.
Further, fixed head is strip plate, and the length direction of installing plate is consistent with the length direction of strip plate.
Further, cleaning part comprises at least two cleaning assemblies, and one of at least two cleaning assemblies are arranged on first side in scouring portion, and another is arranged on second side relative with the first side in scouring portion.
Further, cleaning assembly comprises: locating piece, and locating piece is arranged on bracing frame, and the length direction of locating piece is consistent with the length direction of fixed head; Hairbrush, hairbrush is removably mounted on locating piece.
Further, locating piece is provided with the locating slot that the length direction along locating piece extends, locating slot runs through locating piece, and the relative two side of locating slot is provided with raised line, and raised line extends along the length direction of locating slot; Hairbrush is provided with the installation groove suitable with raised line.
Further, installing rack is provided with guide rail, guide rail extends along the length direction of installing rack, and bracing frame is erected on guide rail.
Application the technical solution of the utility model, wiper mechanism comprises scouring portion and cleaning part, and cleaning part is used for carrying out cleaning work before scouring portion carries out scouring operation.Structure according to the present embodiment can be known, carry out in the process of cleaning at photovoltaic panel cleaning device, wiper mechanism moves along the length direction of installing rack, by the effect of cleaning part, cleaning part first contacts with the impurity in photovoltaic panel, by the impurity cleaning in photovoltaic panel, the impurity such as such as leaf are swept out, these impurity can not be entered in the gap of scouring portion and photovoltaic panel, efficiently avoid photovoltaic panel and gap, scouring portion enters the impurity such as leaf, dust, and then the problem of scuffing is caused to photovoltaic panel.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the three-dimensional structure diagram of photovoltaic panel cleaning device of the present utility model;
Fig. 2 diagrammatically illustrates the front view of photovoltaic panel cleaning device of the present utility model;
Fig. 3 diagrammatically illustrates the top view of photovoltaic panel cleaning device of the present utility model; And
Fig. 4 diagrammatically illustrates the enlarged drawing in the M region in Fig. 1.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
1, photovoltaic panel; 2, wiper mechanism; 21, bracing frame; 211, fixed head; 212, installing hole; 22, cleaning part; 221, assembly is cleaned; 222, locating piece; 223, hairbrush; 224, locating slot; 225, raised line; 226, groove is installed; 23, scouring portion; 231, mop support; 232, hold-down mechanism; 233, installing plate; 234, flexible member; 235, connecting rod; 236, stop block.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
Said as background technology, the method that cleaning photovoltaic panel of the prior art adopts is roughly divided into manual cleaning and cleaning two kinds automatically.The operating efficiency of manual cleaning is cleaned low relatively automatically, and during the photovoltaic panel of cleaning eminence, has danger.Automatic flushing device can improve cleaning efficiency greatly, improves generating efficiency.Automatic flushing device roughly comprises driving mechanism, walking mechanism, transmission mechanism, guide rail etc.But in the process of automatic flushing device cleaning, between photovoltaic panel and automatic flushing device, have the impurity such as leaf, dust, easily scuffing is caused to photovoltaic panel.
See shown in Fig. 1 to Fig. 4, in order to solve in cleaning process, the problem causing photovoltaic panel to be scratched owing to having impurity between photovoltaic panel and automatic flushing device, the utility model provides a kind of photovoltaic panel cleaning device and comprises installing rack (not shown) and wiper mechanism 2, wiper mechanism 2 is arranged movably along the length direction of installing rack, when wiper mechanism 2 is along in the process of the length movement of installing rack, can clean photovoltaic panel 1.
Specifically, the wiper mechanism 2 in the present embodiment comprises scouring portion 23 and cleaning part 22, and cleaning work was carried out in cleaning part 22 before carrying out scouring operation in scouring portion 23.Structure according to the present embodiment can be known, carry out in the process of cleaning at photovoltaic panel cleaning device, wiper mechanism 2 moves along the length direction of installing rack, by the effect of cleaning part 22, cleaning part 22 first contacts with the impurity in photovoltaic panel 1, by the impurity cleaning in photovoltaic panel 1, the impurity such as such as leaf are swept out, make these impurity can not enter scouring portion 23 with the gap of photovoltaic panel, when 23 pairs, the scouring portion photovoltaic panel 1 of wiper mechanism 2 is cleaned, there will not be the situation easily scratching photovoltaic panel 1 owing to there is impurity between scouring portion 23, thus protection photovoltaic panel 1 is not scratched.Can be fixed on wiper mechanism 2 to make scouring portion 23 and cleaning part 22, cleaning device of the present utility model also comprises bracing frame 21, bracing frame 21 is arranged on installing rack movably, scouring portion 23 and cleaning part 22 are disposed side by side on bracing frame 21, by bracing frame 21, scouring portion 23 is fixed on wiper mechanism 2 with cleaning part 22, when in the process that bracing frame 21 moves along installing rack, the cleaning part 22 that drive is arranged on bracing frame 21 and scouring portion 23 move and carry out washing and cleaning operation and clean operation, are convenient to clean photovoltaic panel.
The installing rack of the present embodiment is provided with guide rail, this guide rail extends along the length direction of installing rack, during installation, the bracing frame 21 of wiper mechanism 2 is erected on guide rail, and moves to drive cleaning part 22 and scouring portion 23 to carry out scouring operation and cleaning work along the length direction of guide rail.In other embodiments of the present utility model, gear drive and belt transmission can also be adopted to drive support portion to move.
Scouring portion 23 in the utility model comprises mop support 231 and mop, during installation, mop is arranged on the bottom of mop support 231, is convenient to contact with photovoltaic panel 1 and clean photovoltaic panel 1, and is arranged on bracing frame 21 by mop support 231.Because the bracing frame 21 in the present embodiment is arranged on installing rack movably, when bracing frame 21 runs, mop support 231 moves on installing rack along with bracing frame 21, drives the mop being arranged on the bottom of mop support 231 to clean photovoltaic panel 1.
In order to enable mop be pressed in photovoltaic panel, bracing frame 21 of the present utility model is provided with fixed head 211.Mop support 231 comprises installing plate 233 and hold-down mechanism 232.During installation, hold-down mechanism 232 is connected between fixed head 211 and installing plate 233 to be compressed by installing plate 233.Photovoltaic panel cleaning device of the present utility model is utilized to clean in the process of photovoltaic panel 1, installing plate 233 can compress by hold-down mechanism 232 effectively, and then the mop be arranged on bottom installing plate 233 is pressed in the surface of photovoltaic panel 1, increase the frictional force between mop and photovoltaic panel, make photovoltaic panel 1 clean up.The fixed head 211 of the present embodiment is provided with installing hole 212, is convenient to hold-down mechanism 232 is installed.
Preferably, the installing plate 233 in the utility model is along the length direction of support frame as described above.
In order to allow hold-down mechanism 232 that mop is pressed on photovoltaic panel surface, the hold-down mechanism 232 in the utility model comprises connecting rod 235 and flexible member 234.
Wherein, the first end of connecting rod 235 is fixedly connected on installing plate 233, second end of connecting rod 235 is connected in installing hole 212, and the second end being arranged on connecting rod 235 is provided with stop block 236, by the effect of stop block 236, can being limited to connecting rod 235 between fixed head 211 and installing plate 233.
Flexible member 234 is set on connecting rod 235, and the two ends of this flexible member 234 are connected on installing plate 233 and fixed head 211 respectively.When wiper mechanism 2 works, the length of flexible member 234 can change with the change on photovoltaic panel surface, and to enable mop closely be against in photovoltaic panel 1, connecting rod 235 auxiliary elastic element 234 play the guiding role, and prevents flexible member 234 transversely deforming.The one end be fixedly connected with installing plate 233 due to connecting rod 235 is provided with stop block 236, and this stop block 236 can limit connecting rod 235 and depart from installing plate 233 downwards.
Preferably, the flexible member 234 in the utility model is spring, and in other embodiments of the present utility model, flexible member 234 can also arrange the structures such as rubber sleeve.In other embodiments of the present utility model, connecting rod 235 and flexible member 234 can also need not be set, and be replaced with the structures such as structure or expansion bracket such as driving cylinder.
Fixed head 211 in the utility model is strip plate, the length direction of installing plate 233 is consistent with the length direction of strip plate, and accordingly, mop is laid on the bottom of installing plate 233, be convenient to carry out large area scouring to photovoltaic panel 1, the cleaning efficiency of the photovoltaic panel cleaning device of the present embodiment is provided.
Clean in the process of photovoltaic panel at wiper mechanism 2 along the length direction of installing rack, when wiper mechanism 2 moves to the end of photovoltaic panel, to motion in the other direction, and photovoltaic panel can be cleaned further.In order to make the protection also can accomplished in return course photovoltaic panel surface; prevent impurity from entering in the gap of scouring portion 23 and photovoltaic panel; cleaning assembly 221 in the utility model comprises at least two cleaning assemblies 221; one of at least two cleaning assemblies 221 are arranged on first side in scouring portion 23, and another is arranged on second side relative with the first side in scouring portion 23.
When wiper mechanism 2 moves along a direction, the impurity on this direction in photovoltaic panel 1 cleared away by the cleaning assembly 221 of the first side, effect followed by scouring portion 23 is cleaned photovoltaic panel, when wiper mechanism 2 returns, the cleaning assembly 221 of the second side is by the impurity cleaning in photovoltaic panel in return course, and 23 pairs, scouring portion photovoltaic panel is cleaned further.During work, photovoltaic panel cleaning device of the present utility model circulates the above-mentioned course of work, when reaching expection cleaning performance, stops cleaning.
Due to cleaning assembly 221 works after certain hour can be dirty or damage, need regularly to change, be convenient to make hairbrush 223 change, cleaning assembly 221 of the present utility model also comprises locating piece 222 and hairbrush 223, locating piece 222 is arranged on bracing frame 21, and hairbrush 223 is removably mounted on locating piece 222.When cleaning assembly 221 changed by needs, only hairbrush 223 need be pulled down from locating piece 222, change new hairbrush 223, simple and fast.
Preferably, the length direction of the locating piece 222 in the present embodiment is consistent with the length direction of fixed head 211, and accordingly, hairbrush 223 extends along the length direction of locating piece 222 and is arranged on locating piece 222, is convenient to fully clean the impurity in photovoltaic panel 1.
In order to realize removably connecting between hairbrush 223 and locating piece 222, locating piece 222 in the utility model is provided with the locating slot 224 that the length direction along locating piece 222 extends, this locating slot 224 runs through locating piece 222, the relative two side of locating slot 224 is provided with raised line 225, raised line 225 extends along the length direction of locating slot 224, hairbrush 223 is provided with the installation groove 226 suitable with raised line 225, need more Brusher being able to change bristles 223 time, the length direction of the hairbrush 223 needing to change along locating piece 222 is shifted out, then the installation groove 226 of new hairbrush 223 is docked with locating slot 224, move to the position of raw wool brush 223.
In the unshowned embodiment of one of the present utility model, dovetail groove can also be set on locating piece 222, and correspondence arranges the projection corresponding with dovetail groove on hairbrush 223.
In another unshowned embodiment of the present utility model, hook can also be set on locating piece 222, and correspondence arranges hang part on hairbrush 223.
Can know according to above-mentioned structure, the effect of each structure in the present embodiment is as follows:
Bracing frame 21: for the connection between wiper mechanism 2 and installing rack and support, the thrust of transfer elastic element 234.Adopt welded steel, the connection of its end and installing rack can adjust according to actual size.Connection between fixed head 211 locating piece 222 and bracing frame 21 is removable, is easy for installation and maintenance.
Flexible member 234: the flexible member 234 selecting different coefficient of elasticity, realizes the scouring under different thrust.
Fixed head 211: be fixedly connected with removable between bracing frame 21, jointly realize the compression of flexible member 234 with installing plate 233.
Hairbrush 223: hairbrush 223 both sides have two to install groove 226, in locating piece 222 embedded groove, the relative position of adjustable hairbrush 223 and photovoltaic panel 1.
Locating piece 222: be fixedly connected with bracing frame 21, hairbrush 223 inserts in locating piece 222, fixing hairbrush 223.
As can be seen from the above description, the utility model the above embodiments achieve following technique effect:
Wiper mechanism comprises scouring portion and cleaning part, and cleaning part is used for carrying out cleaning work before scouring portion carries out scouring operation.Structure according to the present embodiment can be known, carry out in the process of cleaning at photovoltaic panel cleaning device, wiper mechanism moves along the length direction of installing rack, by the effect of cleaning part, cleaning part first contacts with the impurity in photovoltaic panel, by the impurity cleaning in photovoltaic panel, the impurity such as such as leaf are swept out, and these impurity can not be entered in the gap of scouring portion and photovoltaic panel.Efficiently avoid photovoltaic panel and gap, scouring portion enters the impurity such as leaf, dust, and then the problem of scuffing is caused to photovoltaic panel.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a photovoltaic panel cleaning device, is characterized in that, comprising:
Installing rack;
Wiper mechanism (2), described wiper mechanism (2) is arranged movably along the length direction of described installing rack, described wiper mechanism (2) comprises scouring portion (23) and cleaning part (22), and described cleaning part (22) carried out cleaning work before carrying out scouring operation described scouring portion (23).
2. photovoltaic panel cleaning device according to claim 1, it is characterized in that, described wiper mechanism (2) also comprises bracing frame (21), support frame as described above (21) is arranged on described installing rack movably, and described scouring portion (23) and described cleaning part (22) are disposed side by side on support frame as described above (21).
3. photovoltaic panel cleaning device according to claim 2, is characterized in that, described scouring portion (23) comprising:
Mop support (231), described mop support (231) is arranged on support frame as described above (21);
Mop, described mop is arranged on described mop support (231).
4. photovoltaic panel cleaning device according to claim 3, is characterized in that, support frame as described above (21) is provided with fixed head (211), and described mop support (231) comprising:
Installing plate (233), described mop is arranged on described installing plate (233);
Hold-down mechanism (232), described hold-down mechanism (232) is connected between described fixed head (211) and described installing plate (233) to be compressed by described installing plate (233).
5. photovoltaic panel cleaning device according to claim 4, is characterized in that, described fixed head (211) is provided with installing hole (212), and described hold-down mechanism (232) comprising:
Connecting rod (235), the first end of described connecting rod (235) is fixedly connected on described installing plate (233), second end of described connecting rod (235) is connected in described installing hole (212), and the second end of described connecting rod (235) is provided with stop block (236);
Flexible member (234), described flexible member (234) is set on described connecting rod (235), and the two ends of described flexible member (234) are connected on described installing plate (233) and described fixed head (211) respectively.
6. photovoltaic panel cleaning device according to claim 4, is characterized in that, described fixed head (211) is strip plate, and the length direction of described installing plate (233) is consistent with the length direction of strip plate.
7. photovoltaic panel cleaning device according to claim 4, it is characterized in that, described cleaning part (22) comprises at least two cleanings assembly (221), one of described at least two cleanings assembly (221) are arranged on the first side of described scouring portion (23), and another is arranged on second side relative with the first side of described scouring portion (23).
8. photovoltaic panel cleaning device according to claim 7, is characterized in that, described cleaning assembly (221) comprising:
Locating piece (222), described locating piece (222) is arranged on support frame as described above (21), and the length direction of described locating piece (222) is consistent with the length direction of described fixed head (211);
Hairbrush (223), described hairbrush (223) is removably mounted on locating piece (222).
9. photovoltaic panel cleaning device according to claim 8, it is characterized in that, described locating piece (222) is provided with the locating slot (224) that the length direction along described locating piece (222) extends, described locating slot (224) runs through described locating piece (222), the relative two side of described locating slot (224) is provided with raised line (225), described raised line (225) extends along the length direction of described locating slot (224);
Described hairbrush (223) is provided with the installation groove suitable with described raised line (225).
10. photovoltaic panel cleaning device according to claim 2, is characterized in that, described installing rack is provided with guide rail, and described guide rail extends along the length direction of described installing rack, and support frame as described above (21) is erected on described guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520973727.8U CN205165303U (en) | 2015-11-30 | 2015-11-30 | Photovoltaic board cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520973727.8U CN205165303U (en) | 2015-11-30 | 2015-11-30 | Photovoltaic board cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205165303U true CN205165303U (en) | 2016-04-20 |
Family
ID=55729340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520973727.8U Active CN205165303U (en) | 2015-11-30 | 2015-11-30 | Photovoltaic board cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205165303U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344629A (en) * | 2015-11-30 | 2016-02-24 | 国网北京市电力公司 | Photovoltaic plate cleaning device |
| CN105935793A (en) * | 2016-05-25 | 2016-09-14 | 深圳市联得自动化装备股份有限公司 | Engraving and milling machine and control method thereof |
| CN112519432A (en) * | 2020-12-15 | 2021-03-19 | 温州职业技术学院 | Sign indicating number device is beaten to automatic seal of commodity circulation express delivery |
| CN114798649A (en) * | 2022-03-14 | 2022-07-29 | 合肥仁洁智能科技有限公司 | Cleaning equipment and photovoltaic system |
-
2015
- 2015-11-30 CN CN201520973727.8U patent/CN205165303U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344629A (en) * | 2015-11-30 | 2016-02-24 | 国网北京市电力公司 | Photovoltaic plate cleaning device |
| CN105935793A (en) * | 2016-05-25 | 2016-09-14 | 深圳市联得自动化装备股份有限公司 | Engraving and milling machine and control method thereof |
| CN112519432A (en) * | 2020-12-15 | 2021-03-19 | 温州职业技术学院 | Sign indicating number device is beaten to automatic seal of commodity circulation express delivery |
| CN112519432B (en) * | 2020-12-15 | 2022-05-10 | 温州职业技术学院 | Sign indicating number device is beaten to automatic seal of commodity circulation express delivery |
| CN114798649A (en) * | 2022-03-14 | 2022-07-29 | 合肥仁洁智能科技有限公司 | Cleaning equipment and photovoltaic system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |