CN114843048A - Rain-proof water backflow device of high-voltage line - Google Patents
Rain-proof water backflow device of high-voltage line Download PDFInfo
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- CN114843048A CN114843048A CN202111278878.8A CN202111278878A CN114843048A CN 114843048 A CN114843048 A CN 114843048A CN 202111278878 A CN202111278878 A CN 202111278878A CN 114843048 A CN114843048 A CN 114843048A
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- voltage line
- prevention device
- backflow prevention
- baffle
- sliding block
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 3
- 230000002265 prevention Effects 0.000 claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000012546 transfer Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 239000012212 insulator Substances 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract 2
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/50—Insulators or insulating bodies characterised by their form with surfaces specially treated for preserving insulating properties, e.g. for protection against moisture, dirt, or the like
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
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- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
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Abstract
The invention discloses a high-voltage line rainwater backflow prevention device which comprises a supporting assembly, a transmission assembly and a baffle assembly, wherein the supporting assembly comprises an installation frame, a motor arranged on the installation frame, a connecting block arranged beside the motor and an arc plate arranged adjacent to the connecting block; the transmission assembly is connected with the support assembly and comprises a rotating disc, a first sliding block connected with the rotating disc and a transmission rod connected with the first sliding block; the baffle assembly is connected with the support assembly and comprises a rotating rod connected with the arc plate, a second sliding block connected with the rotating rod, a support rod connected with the second sliding block and a baffle connected with the support rod; the high-voltage line rainwater backflow prevention device can control the baffle to be opened or stored according to the weather condition detected by the upper computer, protects the insulator, prevents electric leakage of the insulator, prevents rainwater from being filled with electric charges and leaks current, and guarantees the safety of a power grid.
Description
Technical Field
The invention relates to the technical field of power grid equipment, in particular to a rainwater backflow prevention device for a high-voltage line.
Background
The high-voltage line needs to be hung on a tower pole by an insulator, although the insulator is made into an umbrella piece shape and a lip band is reserved for preventing rain, the insulating capability is also reduced on rainy days, and the leakage current is relatively increased. In rainy days, air becomes damp, dielectric constants between lines and between the lines and the ground are changed, the distributed capacitance of the conducting wire is increased, the loss angle of the distributed capacitance is also increased, and the active loss and the reactive loss of leakage current are increased. Raindrops can drop on the electric wire in the rainy period, and the raindrops can drop after being attached for a period of time, because high-voltage circuit voltage is very high, the raindrops can be filled with some charges, leakage current can be increased, air is easier to ionize in rainy days, silent discharge and audible discharge generated by high-voltage ionization can also be increased a lot, and in addition, direct-current transmission affects a little less than alternating-current transmission rainy days.
Therefore, the high-voltage line rainwater backflow prevention device is provided, the baffle is opened through the upper computer control device in rainy days, and the insulator is prevented from being affected with damp and leaking electricity to cause the risk of electric leakage
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The invention is provided in view of the problems of the existing high-voltage line rainwater backflow prevention device.
Therefore, the invention aims to provide a high-voltage line rainwater backflow prevention device which can open a baffle in a rainy day to prevent an insulator from being damped and leaking electricity.
In order to solve the technical problems, the invention provides the following technical scheme: a high-voltage line rainwater backflow prevention device comprises a supporting assembly, a transmission assembly and a baffle assembly, wherein the supporting assembly comprises a mounting frame, a motor arranged on the mounting frame, a connecting block arranged beside the motor, and an arc plate arranged adjacent to the connecting block; the transmission assembly is connected with the support assembly and comprises a rotating disc, a first sliding block connected with the rotating disc and a transmission rod connected with the first sliding block; and the baffle assembly is connected with the supporting assembly and comprises a rotating rod connected with the arc plate, a second sliding block connected with the rotating rod, a supporting rod connected with the second sliding block and a baffle connected with the supporting rod.
As a preferred scheme of the high-voltage line rainwater backflow prevention device, the high-voltage line rainwater backflow prevention device comprises the following components: the mounting bracket comprises a base and a support column arranged on the base.
As a preferred scheme of the high-voltage line rainwater backflow prevention device, the high-voltage line rainwater backflow prevention device comprises the following components: the motor set up in on the support column, and it is rotatory through host computer remote control output shaft.
As a preferred scheme of the high-voltage line rainwater backflow prevention device, the high-voltage line rainwater backflow prevention device comprises the following components: the connecting block is characterized in that a sliding groove is formed in the side wall of the connecting block, and the first sliding block is connected with the sliding groove in a sliding mode.
As a preferred scheme of the high-voltage line rainwater backflow prevention device, the high-voltage line rainwater backflow prevention device comprises the following components: the first sliding block is provided with a positioning block, the positioning block is connected with the rotating disc in a sliding mode, a rotating groove is formed in the rotating disc, arcs with different radiuses are arranged at two ends of the rotating groove, the circle center of the larger arc is connected with the motor in a rotating mode, and the positioning block is arranged in the rotating groove.
As a preferred scheme of the high-voltage line rainwater backflow prevention device, the high-voltage line rainwater backflow prevention device comprises the following components: : the arc plate is arranged at the top of the connecting block, an arc groove is formed in the arc plate, the middle of the arc groove is arc-shaped, and two ends of the arc groove are vertical straight lines.
As a preferred scheme of the high-voltage line rainwater backflow prevention device, the high-voltage line rainwater backflow prevention device comprises the following components: the rotating rod is rotatably connected with the arc plate, the center of the rotating rod is provided with a guide groove, a vertical rod is arranged on one side of the rotating rod, which is the same as the first sliding block, and the vertical rod is rotatably connected with the first sliding block through the transmission rod.
As a preferred scheme of the high-voltage line rainwater backflow prevention device, the high-voltage line rainwater backflow prevention device comprises the following components: the second sliding block penetrates through the arc groove and the guide groove and is in sliding connection with the arc plate and the rotating rod.
As a preferred scheme of the high-voltage line rainwater backflow prevention device, the high-voltage line rainwater backflow prevention device comprises the following components: the support rods are symmetrically arranged on two sides of the second sliding block, one end of each support rod is rotatably connected with the second sliding block, and the other end of each support rod is rotatably connected with the baffle.
As a preferred scheme of the high-voltage line rainwater backflow prevention device, the high-voltage line rainwater backflow prevention device comprises the following components: the baffle is provided with two, and its with the bracing piece one-to-one, the baffle is kept away from with the dwang the one end of arc board is rotated and is connected, the baffle lateral wall rotates with the bracing piece to be connected.
The invention has the beneficial effects that:
the high-voltage line rainwater backflow prevention device can control the baffle to be opened or stored according to the weather condition detected by the upper computer, protects the insulator, prevents electric leakage of the insulator, prevents rainwater from being filled with electric charges and leaks current, and guarantees the safety of a power grid.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic view of the overall structure of the high-voltage line rainwater backflow prevention device.
Fig. 2 is a schematic view of the overall structure of the high-voltage line rainwater backflow prevention device.
Fig. 3 is a side view of the overall structure of the high-voltage line rainwater backflow prevention device.
Fig. 4 is a schematic diagram of the movement of the baffle assembly of the high-voltage line rainwater backflow prevention device.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Furthermore, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Example 1
Referring to fig. 1, for a first embodiment of the present invention, there is provided a high voltage line rainwater backflow prevention device, which includes a support assembly 100, a transmission assembly 200, and a baffle assembly 300, wherein the support assembly 100 includes a mounting frame 101, a motor 102 disposed on the mounting frame 101, a connecting block 103 disposed beside the motor 102, and an arc plate 104 disposed adjacent to the connecting block 103; the transmission assembly 200 is connected with the support assembly 100 and comprises a rotating disc 201, a first sliding block 202 connected with the rotating disc 201 and a transmission rod 203 connected with the first sliding block 202; and the baffle plate assembly 300 is connected with the support assembly 100 and comprises a rotating rod 301 connected with the arc plate 104, a second sliding block 302 connected with the rotating rod 301, a support rod 303 connected with the second sliding block 302 and a baffle plate 304 connected with the support rod 303.
Wherein, supporting component 100 bears all parts, drive assembly 200 connects supporting component 100 and baffle subassembly 300, mounting bracket 101 bears other parts, the rotation of motor 102 control rolling disc 201, connecting block 103 shifts the rotation of rolling disc 201 to the rectilinear sliding of first slider 202 on, arc board 104 carries on spacingly to second slider 302, bear dwang 301 simultaneously, the removal of first slider 202 is controlled to rolling disc 201, the rotation of dwang 301 is controlled through transfer line 203, second slider 302 removes in the dead slot of arc board 104 and dwang 301, according to the change of the distance of second slider 302 and tip, change opening and shutting of bracing piece 303, and then reach opening and closing of baffle 304.
Example 2
Referring to fig. 2 to 4, a second embodiment of the present invention is different from the first embodiment in that: the mounting frame 101 includes a base 101a and a supporting column 101b disposed on the base 101 a. The motor 102 is disposed on the supporting column 101b, and is rotated by an output shaft remotely controlled by an upper computer. The side wall of the connecting block 103 is provided with a sliding groove 103a, and the first sliding block 202 is slidably connected with the sliding groove 103 a.
A positioning block 202a is arranged on the first slider 202, the positioning block 202a is connected with the rotating disc 201 in a sliding mode, a rotating groove 201a is formed in the rotating disc 201, arcs with different radiuses are arranged at two ends of the rotating groove 201a, the circle center of the larger arc is connected with the motor 102 in a rotating mode, and the positioning block 202a is arranged in the rotating groove 201 a. The arc plate 104 is arranged on the top of the connecting block 103, and an arc groove 104a is formed in the arc plate, the middle of the arc groove 104a is arc-shaped, and two ends of the arc groove are vertical straight lines.
The rotating rod 301 is rotatably connected with the arc plate 104, and a guide groove 301a is formed in the center of the rotating rod 301, a vertical rod 301b is arranged on the same side of the rotating rod 301 as the first sliding block 202, and the vertical rod 301b is rotatably connected with the first sliding block 202 through the transmission rod 203. The second slider 302 penetrates the arc groove 104a and the guide groove 301a, and is slidably connected to the arc plate 104 and the rotating lever 301.
The support rods 303 are symmetrically arranged on two sides of the second slider 302, one end of each support rod 303 is rotatably connected with the second slider 302, and the other end of each support rod 303 is rotatably connected with the baffle 304. Baffle 304 is provided with two, and it with bracing piece 303 one-to-one, baffle 304 is kept away from with dwang 301 the one end of arc board 104 is rotated and is connected, baffle 304 lateral wall rotates with bracing piece 303 and is connected.
Further, when the precipitation amount reaches a certain threshold value according to weather information measured by an upper computer, the motor 102 starts rotating 180 degrees, the rotating disc 201 is rotated to drive the first slider 202 to move forward, the transmission rod 203 is pushed, the transmission rod 203 is connected with the rotating rod 301, the rotating rod 301 can be rotated by forward pushing, the second slider 302 moves from two ends of the arc groove 104a to the center of the arc groove 104a, meanwhile, the second slider 302 moves from a position far away from the support column 101b to a position close to the support column 101b in the guide groove 301a, at this time, the support rod 303 opens the baffle 304 due to the fact that the baffle 304 is far away, the baffle 304 rotates on the rotating rod 301 respectively, an opening trend is formed, and rainwater protection is performed on the bottom insulator; when rainwater stops, the upper computer detects that the precipitation amount is too low to drive the motor 102 to rotate again, the rotating disc 201 rotates 180 degrees again, the first sliding block 202 is driven to rotate to one side with a larger arc radius, the rotating rod 301 rotates to one side perpendicular to the supporting column 101b, the second sliding block 302 tends to move to two ends of the arc plate 104, the second sliding block 302 in the rotating rod 301 is closest to the baffle 304 at the moment, the baffle 304 is pushed forward by the supporting rod 303 connected with the second sliding block 302, the baffle 304 is closed, the baffle 304 is moved to the other side, and the device is bundled.
The baffle device is not limited to rainwater protection, any weather reason can achieve a protection effect by controlling the opening and closing of the baffle 304 through data detection of the upper computer, the detection of weather conditions is the prior art, and the detection is not repeated herein, and meanwhile, materials of the baffle 304 can be replaced under extreme conditions, such as waterproof materials, sun-proof materials and the like, so that the baffle device has a wider effect under many conditions.
The rest of the structure is the same as that of embodiment 1.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a rain-proof water refluence device of high-voltage line which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the supporting assembly (100) comprises a mounting frame (101), a motor (102) arranged on the mounting frame (101), a connecting block (103) arranged beside the motor (102), and an arc plate (104) arranged adjacent to the connecting block (103);
the transmission assembly (200) is connected with the support assembly (100) and comprises a rotating disc (201), a first sliding block (202) connected with the rotating disc (201) and a transmission rod (203) connected with the first sliding block (202); and the number of the first and second groups,
baffle subassembly (300), with supporting component (100) are connected, include with dwang (301) that arc board (104) are connected, with second slider (302) that dwang (301) are connected, with bracing piece (303) that second slider (302) are connected, with baffle (304) that bracing piece (303) are connected.
2. The high-voltage line rainwater backflow prevention device of claim 1, wherein: the mounting frame (101) comprises a base (101a) and a supporting column (101b) arranged on the base (101 a).
3. The high-voltage line rainwater backflow prevention device of claim 2, wherein: the motor (102) is arranged on the supporting column (101b) and is rotated through an output shaft of an upper computer in a remote control mode.
4. The high-voltage line rainwater backflow prevention device of claim 3, wherein: a sliding groove (103a) is formed in the side wall of the connecting block (103), and the first sliding block (202) is connected with the sliding groove (103a) in a sliding mode.
5. The high-voltage line rainwater backflow prevention device of claim 4, wherein: the first sliding block (202) is provided with a positioning block (202a), the positioning block (202a) is in sliding connection with the rotating disc (201), the rotating disc (201) is provided with a rotating groove (201a), arcs with different radiuses are arranged at two ends of the rotating groove (201a), the circle center of the larger arc is in rotating connection with the motor (102), and the positioning block (202a) is arranged in the rotating groove (201 a).
6. The high-voltage line rainwater backflow prevention device of claim 5, wherein: the arc plate (104) is arranged at the top of the connecting block (103), an arc groove (104a) is formed in the arc plate, the middle of the arc groove (104a) is arc-shaped, and two ends of the arc groove are vertical straight lines.
7. The high-voltage line rainwater backflow prevention device of claim 6, wherein: dwang (301) and arc board (104) rotate to be connected, and guide way (301a) have been seted up to its center, dwang (301) are provided with vertical pole (301b) on the same one side with first slider (202), vertical pole (301b) pass through with first slider (202) transfer line (203) rotate and are connected.
8. The high-voltage line rainwater backflow prevention device of claim 7, wherein: the second sliding block (302) penetrates through the arc groove (104a) and the guide groove (301a), and is in sliding connection with the arc plate (104) and the rotating rod (301).
9. The high-voltage line rainwater backflow prevention device as claimed in claim 8, wherein: the supporting rods (303) are symmetrically arranged on two sides of the second sliding block (302), one end of each supporting rod (303) is rotatably connected with the second sliding block (302), and the other end of each supporting rod (303) is rotatably connected with the baffle (304).
10. The high-voltage line rainwater backflow prevention device of claim 9, wherein: baffle (304) are provided with two, and it with bracing piece (303) one-to-one, baffle (304) are kept away from with dwang (301) the one end of arc board (104) is rotated and is connected, baffle (304) lateral wall is rotated with bracing piece (303) and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111278878.8A CN114843048B (en) | 2021-10-31 | 2021-10-31 | Rainwater backflow preventing device for high-voltage line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111278878.8A CN114843048B (en) | 2021-10-31 | 2021-10-31 | Rainwater backflow preventing device for high-voltage line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114843048A true CN114843048A (en) | 2022-08-02 |
| CN114843048B CN114843048B (en) | 2024-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111278878.8A Active CN114843048B (en) | 2021-10-31 | 2021-10-31 | Rainwater backflow preventing device for high-voltage line |
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| CN207251000U (en) * | 2017-08-03 | 2018-04-17 | 重庆大顺电力设备有限公司 | A kind of matched transformer electronic box of rainwater-proof |
| CN208047474U (en) * | 2018-02-25 | 2018-11-06 | 浙江嘉昱达机械有限公司 | A kind of greenhouse for having rainwater recycle and utilizing function |
| CN209667390U (en) * | 2019-07-11 | 2019-11-22 | 广西计算中心有限责任公司 | VTOL fixed-wing unmanned plane automatic storage hangar |
| CN110686265A (en) * | 2018-07-06 | 2020-01-14 | 江苏中远环保科技有限公司 | Hazardous gas purifies chimney |
| CN210053000U (en) * | 2019-05-21 | 2020-02-11 | 广州市顺承电气设备有限公司 | High-pressure rain-proof electrical cabinet |
| CN212812293U (en) * | 2020-08-24 | 2021-03-26 | 河北茂顺电子科技有限公司 | Wireless communication board that charges of boats and ships |
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2021
- 2021-10-31 CN CN202111278878.8A patent/CN114843048B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206961620U (en) * | 2017-06-23 | 2018-02-02 | 南昌市光辉电力科技有限公司 | Support is placed in transformer insulated installation |
| CN207251000U (en) * | 2017-08-03 | 2018-04-17 | 重庆大顺电力设备有限公司 | A kind of matched transformer electronic box of rainwater-proof |
| CN107700918A (en) * | 2017-10-23 | 2018-02-16 | 刘昊 | A kind of thunderstorm weather is easy to the lightning protection electric pole that service worker repairs |
| CN208047474U (en) * | 2018-02-25 | 2018-11-06 | 浙江嘉昱达机械有限公司 | A kind of greenhouse for having rainwater recycle and utilizing function |
| CN110686265A (en) * | 2018-07-06 | 2020-01-14 | 江苏中远环保科技有限公司 | Hazardous gas purifies chimney |
| CN210053000U (en) * | 2019-05-21 | 2020-02-11 | 广州市顺承电气设备有限公司 | High-pressure rain-proof electrical cabinet |
| CN209667390U (en) * | 2019-07-11 | 2019-11-22 | 广西计算中心有限责任公司 | VTOL fixed-wing unmanned plane automatic storage hangar |
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| CN114843048B (en) | 2024-07-02 |
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