CN219993598U - Portable ladder for operation and maintenance replacement assembly of photovoltaic power station - Google Patents
Portable ladder for operation and maintenance replacement assembly of photovoltaic power station Download PDFInfo
- Publication number
- CN219993598U CN219993598U CN202321641340.3U CN202321641340U CN219993598U CN 219993598 U CN219993598 U CN 219993598U CN 202321641340 U CN202321641340 U CN 202321641340U CN 219993598 U CN219993598 U CN 219993598U
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- 238000012423 maintenance Methods 0.000 title claims abstract description 47
- 230000002035 prolonged effect Effects 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007774 longterm Effects 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
- 238000010248 power generation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 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
- Ladders (AREA)
Abstract
The utility model relates to a step ladder, in particular to a portable ladder for an operation and maintenance replacement assembly of a photovoltaic power station, which comprises a support straight ladder and a step straight ladder, wherein the support straight ladder is connected with the step straight ladder through a hinge, and the step straight ladder is provided with an extending straight ladder; the pedal-shaped ladder and the straight rods extending the pedal-shaped ladder are connected and fixed through bolts; after the extending straight ladder is prolonged, the inclination angles of the extending straight ladder and the stepping straight ladder are consistent with the inclination angles of the surface of the photovoltaic module; the straight rod of the step-on-one ladder is provided with a plurality of fixing holes along the length direction of the straight rod, the straight rod for supporting the step-on-one ladder is provided with a connecting piece, and the connecting piece is used for connecting any fixing holes on the straight rod corresponding to the step-on-one ladder. The utility model has the effect of facilitating maintenance personnel to overhaul the photovoltaic module.
Description
Technical Field
The utility model relates to a step ladder, in particular to a portable ladder for an operation and maintenance replacement assembly of a photovoltaic power station.
Background
The photovoltaic power station is a power generation system which utilizes solar energy and is composed of electronic elements such as a crystal silicon plate, an inverter and the like made of special materials, and is connected with a power grid and used for transmitting power to the power grid; in order to ensure the stability of the photovoltaic power station in outdoor long-term operation, the photovoltaic power station is usually of a fixed structure, all components of the photovoltaic power station are usually mounted on a photovoltaic special bracket, and all the components of the photovoltaic power station are obliquely supported off the ground by the photovoltaic special bracket; maintenance personnel generally climb to the surface of the photovoltaic module to repair the photovoltaic power station, or use common ladder tools to repair all parts of the photovoltaic module.
Aiming at the related technology, the applicant believes that in the related technology, maintenance personnel directly maintain the surface of the photovoltaic module to easily tread the photovoltaic module, and the use of the ladder stand tool causes inconvenience to maintenance work of the maintenance personnel because the surface area of the photovoltaic module is large and frequent movement of the ladder stand tool is required.
Disclosure of Invention
The utility model aims to provide a wind and sand prevention sealing heat dissipation device for a prefabricated cabin type transformer substation, so as to enhance the heat dissipation effect on a transformer in the prefabricated cabin type transformer substation.
The utility model is realized by the following technical scheme:
the portable ladder comprises a support straight ladder and a treading straight ladder, wherein one end of the support straight ladder is hinged with one end of the treading straight ladder, an extending straight ladder is arranged on the treading straight ladder, and the extending direction of the extending straight ladder is consistent with the length direction of the treading straight ladder; the support of the one-word ladder, the tread of the one-word ladder and the extension of the one-word ladder all comprise two straight rods, a plurality of steps for tread are arranged between the two straight rods, the tread of the one-word ladder and the extension of the one-word ladder are the same in length, a plurality of bolt holes are formed in the tread of the one-word ladder and the extension of the two straight rods of the one-word ladder, and the tread of the one-word ladder and the extension of the straight rods of the one-word ladder are fixedly connected through bolts; after the extending straight ladder is prolonged, the inclination angles of the extending straight ladder and the stepping straight ladder are consistent with the inclination angles of the surface of the photovoltaic module; the straight rod of the step-on-one ladder is provided with a plurality of fixing holes along the length direction of the straight rod, the straight rod for supporting the step-on-one ladder is provided with a connecting piece, and the connecting piece is used for connecting any fixing holes on the straight rod corresponding to the step-on-one ladder.
In this scheme, maintenance personal is when using portable ladder, place portable ladder in photovoltaic module's below, then will support a word ladder and step on a word ladder and expand, according to the actual inclination on photovoltaic module surface regulation extension a word ladder's extension length, make the inclination who extends a word ladder and step on a word ladder and photovoltaic module's surface inclination be close, then maintenance personal can climb and extend a word ladder and step on a word ladder and overhaul photovoltaic module, because the inclination who steps on a word ladder is close with photovoltaic module surface inclination, the maintenance personal of being convenient for overhauls a plurality of positions of photovoltaic module on portable ladder, the frequency that maintenance personal removed portable ladder has been reduced to a certain extent, maintenance personal's maintenance work is provided convenience for maintenance personal.
Further, the support straight ladder is also provided with the extension straight ladder, and the extension direction of the extension straight ladder is consistent with the length direction of the support straight ladder.
In this scheme, when photovoltaic module's highest position is higher apart from ground, can make to extend a word ladder extension, then will extend a word ladder and ground butt, be convenient for improve portable ladder's highest height, and then convenient maintenance to photovoltaic module's highest position.
Further, the standing groove has been seted up along the length direction of straight pole on two straight poles of the extension straight pole on trampling a word ladder, the dwang has been placed in the standing groove, and the dwang keeps away from the one end of trampling a word ladder and extends a word ladder and pass through hinged joint, a plurality of bolt holes have all been seted up on the lateral wall of standing groove and the dwang, the dwang is fixed through the bolt with the dwang after coming out from the standing groove and facing ground.
In this scheme, when photovoltaic module's surface inclination is less and whole high time, the dwang in the rotatable standing groove for the dwang is towards ground, carries out fixed connection with the straight-bar that corresponds with the dwang afterwards through the bolt, then places the dwang subaerial, has increased an extension word ladder and has stepped on the whole high of a word ladder, and the maintenance personal of being convenient for overhauls photovoltaic module on an extension word ladder and stepping on a word ladder, has improved portable ladder's flexibility of use.
Further, the rotating rods are arranged in a telescopic manner, each rotating rod comprises a plurality of telescopic rods, the inside of each telescopic rod is hollow, the telescopic rods are located in the adjacent telescopic rods, and the two adjacent telescopic rods are fixed through bolts; and a telescopic rod closest to the extending straight ladder is connected with the extending straight ladder through a hinge.
In this scheme, according to the actual inclination on photovoltaic module surface adjustment dwang's flexible length, and then adjust and extend a word ladder and step on the whole height of a word ladder to match the slope condition on photovoltaic module surface.
Further, the two straight rods of the extending straight ladder on the supporting straight ladder are hollow, the moving rods are arranged in the two straight rods of the extending straight ladder on the supporting straight ladder, the moving rods are fixed between the moving rods and the straight rods through bolts, and one end, close to the ground, of the moving rods and the free end of the rotating rods are provided with self-locking universal wheels.
In this scheme, stretch out movable rod from the straight-bar is inside, and pass through bolted connection with movable rod and corresponding straight-bar, then open the auto-lock universal wheel, can make things convenient for the maintenance personal to promote portable ladder, the maintenance personal of being convenient for overhauls the photovoltaic module at other positions, has improved the flexibility of removing portable ladder.
Furthermore, the self-locking universal wheels can be contained in the corresponding straight rods or the placing grooves.
In this scheme, when not using movable rod or dwang, can accomodate movable rod, dwang and auto-lock universal wheel inside corresponding straight-bar or standing groove.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. when a maintenance person uses the portable ladder, the portable ladder is placed below the photovoltaic module, then the support straight ladder is unfolded with the stepping straight ladder, the extending length of the extending straight ladder is adjusted according to the actual inclination angle of the surface of the photovoltaic module, the inclination angle of the extending straight ladder and the stepping straight ladder is close to the surface inclination angle of the photovoltaic module, then the maintenance person can climb up to extend the straight ladder and step on the straight ladder to overhaul the photovoltaic module, and as the inclination angle of the stepping straight ladder is close to the inclination angle of the surface of the photovoltaic module, the maintenance person can overhaul a plurality of parts of the photovoltaic module on the portable ladder conveniently, the frequency of the maintenance person moving the portable ladder is reduced to a certain extent, and convenience is provided for overhaul work of the maintenance person;
2. when the surface inclination angle of the photovoltaic module is smaller and the overall height is higher, the rotating rod in the placing groove can be rotated, so that the rotating rod faces the ground, then the rotating rod is fixedly connected with the corresponding straight rod through the bolt, and then the rotating rod is placed on the ground, so that the overall height of the extending straight ladder and the stepping straight ladder is increased, maintenance staff can conveniently overhaul the photovoltaic module on the extending straight ladder and the stepping straight ladder, and the use flexibility of the portable ladder is improved;
3. the movable rod extends out of the straight rod, the movable rod is connected with the corresponding straight rod through a bolt, and then the self-locking universal wheel is opened, so that maintenance personnel can conveniently push the portable ladder, maintenance personnel can conveniently overhaul the photovoltaic modules at other positions, and flexibility of moving the portable ladder is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model.
In the drawings:
fig. 1 is a schematic structural diagram of embodiment 1 of the present utility model.
In the drawings, the reference numerals and corresponding part names:
1. supporting a straight ladder; 2. stepping on the straight ladder; 3. extending a ladder; 4. a straight rod; 5. a step ladder; 6. bolt holes; 7. a pull rope; 8. a hook; 9. a placement groove; 10. a rotating lever; 11. a telescopic rod; 12. a moving rod; 13. self-locking universal wheels; 14. and a fixing hole.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model. It should be noted that the present utility model is already in a practical development and use stage.
Example 1
Referring to fig. 1, the portable ladder for the operation and maintenance replacement assembly of the photovoltaic power station comprises a support-shaped ladder 1 and a tread-shaped ladder 2, wherein one end of the support-shaped ladder 1 is hinged with one end of the tread-shaped ladder 2, the tread-shaped ladder 2 is longer than the support-shaped ladder 1, an extension-shaped ladder 3 is arranged on the tread-shaped ladder 2, and the extension direction of the extension-shaped ladder 3 is consistent with the length direction of the tread-shaped ladder 2; the support of the one-word ladder 1, the tread of the one-word ladder 2 and the extension of the one-word ladder 3 comprise two straight rods 4, a plurality of steps 5 for tread are arranged between the two straight rods 4, the lengths of the steps 5 for tread the one-word ladder 2 and the extension of the one-word ladder 3 are the same, a plurality of bolt holes 6 are formed in the two straight rods 4 for tread the one-word ladder 2 and the extension of the one-word ladder 3, and the straight rods 4 corresponding to the tread of the one-word ladder 2 and the extension of the one-word ladder 3 are fixedly connected through bolts; a plurality of fixing holes 14 are formed in the straight rod 4 of the step-on straight ladder 2 along the length direction of the straight rod 4, a connecting piece is arranged on the straight rod 4 for supporting the step-on straight ladder 1, and the connecting piece is used for connecting any fixing hole 14 on the straight rod 4 corresponding to the step-on straight ladder 2; the connecting piece includes stay cord 7 and couple 8, the one end of stay cord 7 is connected with the straight-bar 4 that supports a word ladder 1, the other end is connected with couple 8, maintenance personal is when using portable ladder, place portable ladder in the below of photovoltaic module, then will support a word ladder 1 and step on a word ladder 2 and expand, according to the actual inclination on photovoltaic module surface regulation extension length of a word ladder 3, make the inclination who extends a word ladder 3 and tramples a word ladder 2 unanimous or be close with photovoltaic module's surface inclination, trample the inside cavity of straight-bar 4 of a word ladder 2, conveniently hang couple 8 on trampling a fixed orifices 14 of a word ladder 2, and make stay cord 7 tend to the state of stretching out, stability when using in order to improve portable ladder, afterwards maintenance personal can climb and trample a word ladder 3 and overhaul photovoltaic module, because trample a word ladder 2's inclination is unanimous or close with photovoltaic module surface inclination, the maintenance personal is convenient for a plurality of positions of portable ladder go on portable ladder carry out maintenance personal, maintenance personal's portable maintenance personal has reduced the maintenance personal's that has provided portable maintenance personal to have carried out the maintenance personal.
As a preferred embodiment, referring to fig. 1, an extending-shaped ladder 3 is also arranged on the supporting-shaped ladder 1, the extending direction of the extending-shaped ladder 3 is consistent with the length direction of the supporting-shaped ladder 1, the lengths of the supporting-shaped ladder 1 and the step 5 of the extending-shaped ladder 3 are the same, and the supporting-shaped ladder 1 and the extending-shaped ladder 3 are connected and fixed through bolts; when the highest position of the photovoltaic module is higher from the ground, the extending straight ladder 3 can be extended, the extending straight ladder 3 and the supporting straight ladder 1 are fixed through bolts, then the extending straight ladder 3 is abutted to the ground, the highest height of the portable ladder is conveniently improved, and the highest position of the photovoltaic module is conveniently overhauled.
As a preferred embodiment, referring to fig. 1, two straight bars 4 extending the linear ladder 3 on the step-on linear ladder 2 are provided with a placing groove 9 along the length direction of the straight bars 4, a rotating rod 10 is placed in the placing groove 9, one end of the rotating rod 10 far away from the step-on linear ladder 2 is connected with the extending linear ladder 3 through a hinge, the side wall of the placing groove 9 and the rotating rod 10 are provided with a plurality of bolt holes 6, and the rotating rod 10 rotates out of the placing groove 9 and faces the ground to be fixed with the rotating rod 10 through bolts; when the surface inclination of photovoltaic module is less and overall height is higher, rotatable dwang 10 in the standing groove 9 for dwang 10 rotates out from the standing groove 9, and makes dwang 10 towards ground, carries out fixed connection with dwang 10 and corresponding straight-bar 4 through the bolt afterwards, then places dwang 10 subaerial, has increased the overall height that extends a word ladder 3 and tramples a word ladder 2, and the maintenance personal of being convenient for overhauls photovoltaic module on extending a word ladder 3 and tramples a word ladder 2, has improved portable ladder's flexibility of use.
As a preferred embodiment, referring to fig. 1, a rotating rod 10 is telescopically arranged, the rotating rod 10 comprises a plurality of telescopic rods 11, the inside of each telescopic rod 11 is hollow, each telescopic rod 11 is positioned in the adjacent telescopic rod 11, the adjacent two telescopic rods 11 are in sliding fit, and the adjacent two telescopic rods 11 are fixed through bolts; a telescopic rod 11 closest to the extending straight ladder 3 is connected with the extending straight ladder 3 through a hinge; the telescopic rod 11 is slid, the telescopic length of the rotating rod 10 is adjusted according to the actual inclination angle of the surface of the photovoltaic module, and then the overall height of the extending straight ladder 3 and the trampling straight ladder 2 is adjusted to match the inclination condition of the surface of the photovoltaic module, so that maintenance personnel can conveniently overhaul the photovoltaic module.
As a preferred embodiment, referring to fig. 1, two straight rods 4 supporting a word ladder 1 and extending the word ladder 3 are all arranged in a hollow manner, moving rods 12 are arranged in the two straight rods 4 supporting the word ladder 1 and extending the word ladder 3, the moving rods 12 are in sliding fit with the straight rods 4, the moving rods 12 and the straight rods 4 are fixed through bolts, and self-locking universal wheels 13 are arranged at one end of the moving rods 12 close to the ground and at the free end of the rotating rods 10; the movable rod 12 extends out of the straight rod 4, the movable rod 12 is connected with the corresponding straight rod 4 through bolts, and then the self-locking universal wheel 13 is opened, so that a maintenance person can conveniently push the portable ladder, maintenance personnel can conveniently overhaul photovoltaic modules at other positions, and flexibility of moving the portable ladder is improved; after the self-locking universal wheels 13 are locked, the portable ladder can be directly used, so that the risk of displacement of the portable ladder is reduced; in addition, the self-locking universal wheels 13 can be all accommodated in the corresponding straight rod 4 or the placing groove 9, and when the moving rod 12 or the rotating rod 10 is not used, the moving rod 12, the rotating rod 10 and the self-locking universal wheels 13 can be all accommodated in the corresponding straight rod 4 or the placing groove 9; after the portable ladder is used, the movable rod 12, the rotary rod 10 and the extension straight ladder are shortened, the straight ladder 1 is folded and supported, and the straight ladder 2 is trampled, so that the portable ladder is convenient to store and carry.
Example 2
The difference between this embodiment and embodiment 1 is that, in this embodiment, the connecting piece includes the connecting rod, one end of connecting rod and the straight pole 4 that supports a word ladder 1 are connected through the spherical hinge, the connecting rod is kept away from the one end that supports a word ladder 1 and is provided with spliced pole and magnet, the iron strip has been fixed through the screw on the straight pole 4 of trampling a word ladder 2, the length direction of iron strip is unanimous with the direction of distribution of a plurality of fixed orifices 14, and the iron strip is located one side of a plurality of fixed orifices 14, after adjusting the extension length of an extension word ladder 3, will extend a word ladder 3 and ground looks butt, then put into the spliced pole and trample in the fixed orifices 14 that a word ladder 2 corresponds, magnet and iron strip adsorb this moment, be convenient for improve the stability of being connected between connecting rod and the trample a word ladder 2.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (6)
1. A portable ladder that is used for photovoltaic power plant fortune dimension to change subassembly, its characterized in that: the pedal type ladder comprises a supporting one-word ladder (1) and a pedal one-word ladder (2), wherein one end of the supporting one-word ladder (1) is hinged with one end of the pedal one-word ladder (2), an extending one-word ladder (3) is arranged on the pedal one-word ladder (2), and the extending direction of the extending one-word ladder (3) is consistent with the length direction of the pedal one-word ladder (2); the support one-word ladder (1), the tread one-word ladder (2) and the extension one-word ladder (3) all comprise two straight rods (4), a plurality of step ladders (5) for tread are arranged between the two straight rods (4), a plurality of bolt holes (6) are formed in the tread one-word ladder (2) and the two straight rods (4) of the extension one-word ladder (3), and the tread one-word ladder (2) and the straight rods (4) of the extension one-word ladder (3) are fixedly connected through bolts; after the extending straight ladder (3) is prolonged, the inclination angles of the extending straight ladder (3) and the stepping straight ladder (2) are consistent with the inclination angle of the surface of the photovoltaic module; the straight rod (4) of the step-on straight ladder (2) is provided with a plurality of fixing holes (14) along the length direction of the straight rod (4), the straight rod (4) of the support straight ladder (1) is provided with a connecting piece, and the connecting piece is used for connecting any fixing holes (14) on the straight rod (4) corresponding to the step-on straight ladder (2).
2. A portable ladder for a photovoltaic power plant operation and maintenance replacement assembly according to claim 1, wherein: the support straight ladder (1) is also provided with the extension straight ladder (3), and the extension direction of the extension straight ladder (3) is consistent with the length direction of the support straight ladder (1).
3. A portable ladder for a photovoltaic power plant operation and maintenance replacement assembly according to claim 2, wherein: the utility model discloses a pedal-shaped ladder, including standing groove (9) has been seted up along the length direction of straight-bar (4) on two straight-bars (4) of extending a ladder (3) on pedal-shaped ladder (2), standing groove (9) are interior to have placed dwang (10), and dwang (10) keep away from pedal-shaped ladder (2) one end and extend a ladder (3) and pass through hinged joint, a plurality of bolt holes (6) have all been seted up on the lateral wall of standing groove (9) and dwang (10), dwang (10) are fixed through the bolt with dwang (10) after following standing groove (9) internal rotation and orientation ground.
4. A portable ladder for a photovoltaic power plant operation and maintenance replacement assembly according to claim 3, wherein: the rotating rods (10) are arranged in a telescopic mode, the rotating rods (10) comprise a plurality of telescopic rods (11), the inside of each telescopic rod (11) is hollow, the telescopic rods (11) are located in the adjacent telescopic rods (11), and the two adjacent telescopic rods (11) are fixed through bolts; a telescopic rod (11) closest to the extending straight ladder (3) is connected with the extending straight ladder (3) through a hinge.
5. A portable ladder for a photovoltaic power plant operation and maintenance replacement assembly according to claim 3, wherein: the two straight rods (4) supporting the one-word ladder (1) and extending the one-word ladder (3) are hollow, the moving rods (12) are arranged inside the two straight rods (4) supporting the one-word ladder (1) and extending the one-word ladder (3), the moving rods (12) and the straight rods (4) are fixed through bolts, and one end, close to the ground, of the moving rods (12) and the free end of the rotating rod (10) are provided with self-locking universal wheels (13).
6. A portable ladder for a photovoltaic power plant operation and maintenance replacement assembly according to claim 5, wherein: the self-locking universal wheels (13) can be contained in the corresponding straight rods (4) or the containing grooves (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321641340.3U CN219993598U (en) | 2023-06-27 | 2023-06-27 | Portable ladder for operation and maintenance replacement assembly of photovoltaic power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321641340.3U CN219993598U (en) | 2023-06-27 | 2023-06-27 | Portable ladder for operation and maintenance replacement assembly of photovoltaic power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219993598U true CN219993598U (en) | 2023-11-10 |
Family
ID=88620066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321641340.3U Active CN219993598U (en) | 2023-06-27 | 2023-06-27 | Portable ladder for operation and maintenance replacement assembly of photovoltaic power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219993598U (en) |
-
2023
- 2023-06-27 CN CN202321641340.3U patent/CN219993598U/en active Active
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