CN110943398B - Cable maintenance assembly for electrician maintenance and operation method thereof - Google Patents
Cable maintenance assembly for electrician maintenance and operation method thereof Download PDFInfo
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- CN110943398B CN110943398B CN201911187850.6A CN201911187850A CN110943398B CN 110943398 B CN110943398 B CN 110943398B CN 201911187850 A CN201911187850 A CN 201911187850A CN 110943398 B CN110943398 B CN 110943398B
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- 238000012423 maintenance Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000001174 ascending effect Effects 0.000 claims abstract description 5
- 230000008439 repair process Effects 0.000 claims description 22
- 230000000087 stabilizing effect Effects 0.000 claims description 17
- 239000003381 stabilizer Substances 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000006978 adaptation Effects 0.000 claims description 10
- 230000003028 elevating effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims 1
- 230000001965 increasing effect Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 5
- 235000017060 Arachis glabrata Nutrition 0.000 description 1
- 244000105624 Arachis hypogaea Species 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 235000018262 Arachis monticola Nutrition 0.000 description 1
- 244000020551 Helianthus annuus Species 0.000 description 1
- 235000003222 Helianthus annuus Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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Abstract
The invention discloses a cable maintenance assembly for electrician maintenance and an operation method thereof, and particularly relates to the field of electrician maintenance. According to the invention, the controller is used for adjusting the hydraulic cylinder, so that the whole control platform moves upwards to be close to the cable, then the electronic rotating shaft is continuously controlled, the electronic rotating shaft is rotated and the height is adjusted, so that the multi-directional observation of the camera on the surface of the cable is recorded, and the data observed by the recording camera is transmitted to the observation panel, thereby realizing the observation and the maintenance of the cable without manually ascending the height, greatly increasing the observation efficiency and reducing the danger of workers for maintaining the cable.
Description
Technical Field
The invention relates to the technical field of electrician maintenance, in particular to a cable maintenance assembly for electrician maintenance and an operation method thereof.
Background
With the development and progress of society and the continuous progress of high-voltage transmission technology, high-voltage transmission lines in China are more and more; the increase of high tension transmission line, the maintenance of circuit also becomes a problem, high tension transmission line arranges in the high altitude mostly, when overhauing the power equipment of eminence, operating personnel's usual way is to use the safety belt to carry out high altitude suspension operation, the safety belt is because receiving the restriction of hanging the position, there is the potential safety hazard, can lead to operating personnel and power equipment to have more contact simultaneously, can not satisfy safe operation standard's requirement in some places that the voltage level is higher, so can use the maintenance frame to overhaul power equipment usually in the work that power equipment overhauld, guarantee operating personnel's security.
Current circuit maintenance is all climbed to the eminence through the manual work and is surveyd, then overhauls, and current device also has the maintenance frame for make things convenient for the workman to overhaul, but the utensil that the workman ascended a height about only can being controlled to current maintenance frame, and practical value is high, and in the face of diversified cable environment under, holistic application scope is poor, and danger coefficient is higher.
It is therefore desirable to provide an access frame for electrical service that facilitates maintenance.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide a cable repair assembly for electrician repair and an operation method thereof, in which a controller can control a hydraulic cylinder to adjust the height of an operation platform, and meanwhile, the height of a first lifting platform is changed in cooperation with a fastening bolt, and a dismounting rod can be moved in multiple angles through an electronic rotating shaft, so that the repair frame can be ensured to realize multi-directional stable observation on a repaired cable, thereby facilitating subsequent repair engineering, greatly increasing the application range of the device to different working environments, and increasing the adaptation range of the repair frame, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a cable maintenance assembly for electrician maintenance and an operation method thereof comprise a base, wherein universal wheels are fixedly mounted on the left side and the right side of the bottom surface of the base, a stabilizer bar is fixedly mounted on one side of the top surface of the base, a hydraulic cylinder is detachably mounted outside the stabilizer bar, the bottom of the hydraulic cylinder is connected with a linkage sleeve block through a connecting spring positioned outside the stabilizer bar in a transmission manner, a control table is fixedly sleeved outside the hydraulic cylinder, an observation panel is fixedly connected to the bottom surface of the control table, the side surface of the observation panel is fixedly connected with the side surface of the stabilizer bar, the top surface of the stabilizer bar is connected with a first lifting table through a movable shaft in a transmission manner, the other end of the first lifting table is connected with a second lifting table through an electronic rotating shaft in a transmission manner, and a recording;
the bottom surface fixedly connected with electromagnetism subassembly of pneumatic cylinder, the top surface fixed mounting of interlock cover block has the magnetic part that is located under the electromagnetism subassembly, the top surface of controlling the platform has supporting component and dismantlement subassembly from a left side to the right side fixed mounting in proper order, the top of supporting component and dismantlement subassembly respectively with the both ends fixed connection of first elevating platform bottom surface, the input electric connection of electromagnetism subassembly has the controller, the output of controller respectively with the input electric connection of pneumatic cylinder, electron pivot, record camera and observation panel.
In a preferred embodiment, the console has a bottom surface fixedly mounted with a stabilizing block, and the bottom surface of the stabilizing block is fixedly connected with the top surface of the observation panel.
In a preferred embodiment, the upper end and the lower end of the connecting spring are fixedly connected with the side surface between the magnetic member and the electromagnetic assembly respectively.
In a preferred embodiment, a side surface of the observation panel is fixedly connected with a connecting rod, and a side surface of the connecting rod is fixedly connected with a side surface of the linkage sleeve block.
In a preferred embodiment, the supporting component comprises a top platform, the bottom of the top platform is fixedly provided with a fixed sleeve, the bottom of the fixed sleeve is movably sleeved with a bottom rod, the side surface of the bottom rod is fixedly provided with a fastening bolt positioned in the fixed sleeve, the top of the bottom rod is movably sleeved with a telescopic rod, and the top of the telescopic rod is fixedly connected with the top surface of the inner cavity of the fixed sleeve.
In a preferred embodiment, the outer part of the telescopic rod is movably sleeved with a connecting spring, and the upper end and the lower end of the connecting spring are fixedly connected with the top surface of the inner cavity of the fixed sleeve and the top surface of the bottom rod respectively.
In a preferred embodiment, the dismantlement subassembly includes stabilizes the loop bar, the quantity of stabilizing the loop bar is two, two the equal fixed mounting in inside of stabilizing the loop bar has the latch segment, two the equal fixed mounting in side between the latch segment has the telescopic link, and equal movable sleeve is equipped with the adjusting lever between two telescopic links, two the equal fixed mounting in side that the latch segment kept away from each other has the extension rod, the locating hole has been seted up on the surface of adjusting lever, the positive fixed mounting of stabilizing the loop bar has the fastening bolt with locating hole looks adaptation.
In a preferred embodiment, the method of operation is as follows:
the first step is as follows: firstly, adjusting a support component according to the height of the repaired cable, namely changing the height of a first lifting platform by moving a fastening bolt, and if the repair height is far higher than the height of a cable repair component for electrician maintenance, namely, using a disassembling component to jack the first lifting platform to the highest height;
the second step is that: according to the height of the cable to be overhauled, the controller is controlled, the hydraulic cylinder is adjusted by the controller, the whole console is moved upwards to be close to the cable, then the electronic rotating shaft is continuously controlled, and the electronic rotating shaft is rotated and the height is adjusted, so that the multidirectional observation of the surface of the cable by the camera is recorded;
the third step: data transmission through the record camera observation to observing the panel to realized not having accomplished observation and the maintenance to the cable with artifical the ascending a height promptly.
In a preferred embodiment, the end part of the detaching assembly is in a hook shape, and a hanging ring matched with the end part of the detaching assembly is fixedly installed at the end part of the bottom surface of the first lifting platform.
The invention has the technical effects and advantages that:
1. according to the invention, the hydraulic cylinder can be controlled by the controller to adjust the height of the control platform, meanwhile, the height of the first lifting platform is changed by matching with the fastening bolt, and the multi-angle motion of the disassembling rod can be realized by the electronic rotating shaft, so that the overhaul rack is greatly ensured to realize multi-direction stable observation on the repaired cable, the subsequent overhaul project is facilitated, the device is also greatly increased to be suitable for different working environments, and the adaptation range of the overhaul rack is increased;
2. according to the invention, the hydraulic cylinder is adjusted by the controller through the control controller, so that the whole control platform moves upwards to be close to the cable, then the electronic rotating shaft is continuously controlled, the electronic rotating shaft is rotated and the height is adjusted, so that the multi-directional observation of the surface of the cable by the recording camera is recorded, and the data observed by the recording camera is transmitted to the observation panel, thereby realizing the observation and the maintenance of the cable without manually ascending, greatly increasing the observation efficiency and reducing the danger of the cable maintenance of workers;
3. according to the invention, the dismounting assembly is arranged, and the length of the dismounting assembly is stably adjusted by adjusting the fastening bolt outside the dismounting assembly and the positioning hole, so that the angle of the first lifting platform can be smoothly changed, the adaptation range of the device is greatly increased, and the practicability of the device is ensured.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the structure of the present invention in use.
Fig. 3 is a structural schematic diagram of the support assembly of the present invention.
Fig. 4 is a structural schematic diagram of the detaching assembly of the present invention.
Fig. 5 is a block diagram of the system of the present invention.
Fig. 6 is a circuit diagram of the controller of the present invention.
The reference signs are: 1. a base; 2. a universal wheel; 3. a stabilizer bar; 4. a hydraulic cylinder; 5. linking the sleeve block; 6. a magnetic member; 7. an electromagnetic assembly; 8. a console; 9. a connecting spring; 10. an observation panel; 11. a connecting rod; 12. a first lifting platform; 13. a support assembly; 131. a top stage; 132. fixing the sleeve; 133. a telescopic rod; 134. a connecting spring; 135. a bottom bar; 136. fastening a bolt; 14. disassembling the assembly; 141. stabilizing the loop bar; 142. a locking block; 143. an extension rod; 144. an adjusting lever; 145. positioning holes; 15. an electronic spindle; 16. a second lifting platform; 17. recording the camera; 18. and a controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The cable repair assembly for electrician maintenance and the operation method thereof as shown in fig. 1-6, comprises a base 1, universal wheels 2 are fixedly mounted on both left and right sides of the bottom surface of the base 1, a stabilizer bar 3 is fixedly mounted on one side of the top surface of the base 1, a hydraulic cylinder 4 is detachably mounted on the outside of the stabilizer bar 3, a linkage sleeve block 5 is connected to the bottom of the hydraulic cylinder 4 through a transmission of a connecting spring 9 positioned on the outside of the stabilizer bar 3, a console 8 is fixedly sleeved on the outside of the hydraulic cylinder 4, an observation panel 10 is fixedly connected to the bottom surface of the console 8, the side surface of the observation panel 10 is fixedly connected to the side surface of the stabilizer bar 3, the top surface of the stabilizer bar 3 is connected to a first lifting platform 12 through a transmission of a movable shaft, the other end of the first lifting platform 12 is connected to a second, a recording camera 17 is fixedly mounted at the end part of the second lifting platform 16;
the bottom surface fixedly connected with electromagnetism subassembly 7 of pneumatic cylinder 4, the top surface fixed mounting of interlock cover block 5 has the magnetic part 6 that is located under the electromagnetism subassembly 7, the top surface of controlling platform 8 has supporting component 13 and dismantlement subassembly 14 from a left side to the right side fixed mounting in proper order, the top of supporting component 13 and dismantlement subassembly 14 respectively with the both ends fixed connection of first elevating platform 12 bottom surface, the input electric connection of electromagnetism subassembly 7 has controller 18, the output of controller 18 respectively with pneumatic cylinder 4, electron pivot 15, record camera 17 and the input electric connection of observing panel 10.
A stabilizing block is fixedly installed on the bottom surface of the control platform 8, the bottom surface of the stabilizing block is fixedly connected with the top surface of the observation panel 10, the upper end and the lower end of the connecting spring 9 are respectively fixedly connected with the side surface between the magnetic part 6 and the electromagnetic component 7, the side surface of the observation panel 10 is fixedly connected with the connecting rod 11, the side surface of the connecting rod 11 is fixedly connected with the side surface of the linkage sleeve block 5, the supporting component 13 comprises a top platform 131, a fixed sleeve 132 is fixedly installed at the bottom of the top platform 131, a bottom rod 135 is movably sleeved at the bottom of the fixed sleeve 132, a fastening bolt 136 positioned inside the fixed sleeve 132 is fixedly installed at the side surface of the bottom rod 135, a telescopic rod 133 is movably sleeved at the top of the bottom rod 135, the top of the telescopic rod 133 is fixedly connected with the top surface of the inner cavity of the fixed sleeve 132, and a connecting, connecting spring 134 upper and lower both ends respectively with the top surface of fixed sleeve 132 inner chamber and the top surface fixed connection of sill bar 135, it includes stable loop bar 141 to dismantle subassembly 14, the quantity of stabilizing loop bar 141 is two, two the equal fixed mounting in inside of stabilizing loop bar 141 has latch segment 142, two the equal fixed mounting in side between the latch segment 142 has the telescopic link, and equal movable sleeve is equipped with adjusting lever 144 between two telescopic links, two the equal fixed mounting in side that latch segment 142 kept away from each other has extension rod 143, locating hole 145 has been seted up on the surface of adjusting lever 144, the front fixed mounting of stabilizing loop bar 141 has the fastening bolt with locating hole 145 looks adaptation.
The operation method comprises the following steps:
the first step is as follows: firstly, adjusting the supporting component 13 according to the height of the repaired cable, namely, changing the height of the first lifting platform 12 by moving the fastening bolt 136, and if the repairing height is far higher than the height of the cable repairing component for electrician maintenance, namely, the first lifting platform 12 is jacked to the highest position by utilizing the disassembling component 14;
the second step is that: according to the height of the cable to be overhauled, the controller 18 is controlled, the hydraulic cylinder 4 is adjusted by the controller 18, the whole console 8 moves upwards to be close to the cable, then the electronic rotating shaft 15 is continuously controlled, and the recording camera 17 is enabled to observe the cable surface in multiple directions by rotating and adjusting the height of the electronic rotating shaft;
the third step: data transmission to observation panel 10 through the observation of record camera 17 to realized not having accomplished observation and the maintenance to the cable promptly with artifical ascending a height, the tip of dismantling subassembly 14 is the couple form, the tip fixed mounting of first elevating platform 12 bottom surface has and dismantles the link of subassembly 14 tip looks adaptation.
The specific implementation mode is as follows: the height of the control platform 8 is adjusted through the hydraulic cylinder 4, meanwhile, the height of the first lifting platform 12 is changed by matching with the fastening bolt 136, the multi-angle motion of the dismounting rod 14 can be realized through the electronic rotating shaft 15, the overhaul frame is greatly ensured to realize multi-direction stable observation on the repaired cable, the subsequent overhaul project is facilitated, the device is also greatly increased to be suitable for different working environments, and the adaptation range of the overhaul frame is increased; the hydraulic cylinder 4, the electronic rotating shaft 15, the recording camera 17 and the observation panel 10 are controlled by the controller 18, so that intelligent one-key control is realized, and the control difficulty of the device is greatly simplified; through setting up the detachment assembly 14, utilize the adjustment between the outside fastening bolt of detachment assembly 14 and the locating hole 145 to stably adjust the length of detachment assembly 14, then can more change the angle of first elevating platform 12 smoothly, very big increase the adaptation scope of the device, guaranteed the device's practicality.
The controller 18 is a sunflower control model A2 of peanut stick, the hydraulic cylinder 4 is a 100 x 72 model of rising brand, and the electromagnetic assembly 7 is a miniature electromagnetic device of Van brand.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. The utility model provides a cable maintenance subassembly that electrician's maintenance was used, includes base (1), the equal fixed mounting in both sides has universal wheel (2), its characterized in that about base (1) bottom surface: a stabilizer bar (3) is fixedly arranged on one side of the top surface of the base (1), a hydraulic cylinder (4) is detachably arranged outside the stabilizer bar (3), the bottom of the hydraulic cylinder (4) is in transmission connection with a linkage sleeve block (5) through a connecting spring (9) positioned outside the stabilizer bar (3), an operation control platform (8) is fixedly sleeved outside the hydraulic cylinder (4), the bottom surface of the operation control platform (8) is fixedly connected with an observation panel (10), the side surface of the observation panel (10) is fixedly connected with the side surface of the stabilizer bar (3), the top surface of the stabilizer bar (3) is connected with a first lifting platform (12) through a movable shaft in a transmission way, the other end of the first lifting platform (12) is connected with a second lifting platform (16) through an electronic rotating shaft (15) in a transmission way, a recording camera (17) is fixedly arranged at the end part of the second lifting platform (16);
the utility model discloses a hydraulic pressure measuring device, including pneumatic cylinder (4), bottom surface fixedly connected with electromagnetism subassembly (7) of pneumatic cylinder (4), the top surface fixed mounting of interlock cover block (5) has magnetism spare (6) that is located under electromagnetism subassembly (7), the top surface of controlling platform (8) has supporting component (13) and dismantlement subassembly (14) from a left side to the right side fixed mounting in proper order, the top of supporting component (13) and dismantlement subassembly (14) respectively with the both ends fixed connection of first elevating platform (12) bottom surface, the input electric connection of electromagnetism subassembly (7) has controller (18), the output of controller (18) respectively with pneumatic cylinder (4), electron pivot (15), record camera (17) and the input electric connection of observing panel (10).
2. A cable repair assembly for electrician repair according to claim 1, wherein: the bottom surface of the control platform (8) is fixedly provided with a stabilizing block, and the bottom surface of the stabilizing block is fixedly connected with the top surface of the observation panel (10).
3. A cable repair assembly for electrician repair according to claim 1, wherein: the upper end and the lower end of the connecting spring (9) are respectively fixedly connected with the side surface between the magnetic part (6) and the electromagnetic component (7).
4. A cable repair assembly for electrician repair according to claim 1, wherein: the side surface of the observation panel (10) is fixedly connected with a connecting rod (11), and the side surface of the connecting rod (11) is fixedly connected with the side surface of the linkage sleeve block (5).
5. A cable repair assembly for electrician repair according to claim 1, wherein: supporting component (13) is including top platform (131), the bottom fixed mounting of top platform (131) has fixed sleeve (132), the bottom movable sleeve of fixed sleeve (132) is equipped with sill bar (135), the side fixed mounting of sill bar (135) has fastening bolt (136) that are located fixed sleeve (132) inside, the top movable sleeve of sill bar (135) is equipped with telescopic link (133), the top of telescopic link (133) and the top surface fixed connection of fixed sleeve (132) inner chamber.
6. The electrical service cable service assembly of claim 5, wherein: the outside activity cover of telescopic link (133) is equipped with connecting spring (134), the upper and lower both ends of connecting spring (134) respectively with the top surface of fixed sleeve pipe (132) inner chamber and the top surface fixed connection of sill bar (135).
7. A cable repair assembly for electrician repair according to claim 1, wherein: dismantle subassembly (14) including stabilizing loop bar (141), the quantity of stabilizing loop bar (141) is two, two the equal fixed mounting in inside of stabilizing loop bar (141) has latch segment (142), two the equal fixed mounting in side between latch segment (142) has the telescopic link, and equal movable sleeve is equipped with adjusting lever (144) between two telescopic links, two the equal fixed mounting in side that latch segment (142) kept away from each other has extension rod (143), locating hole (145) have been seted up on the surface of adjusting lever (144), the positive fixed mounting of stabilizing loop bar (141) has the fastening bolt with locating hole (145) looks adaptation.
8. A method of operating a cable repair assembly for electrician repair according to claim 1, wherein: the operation method comprises the following steps:
the first step is as follows: firstly, adjusting a supporting component (13) according to the height of the repaired cable, namely changing the height of a first lifting platform (12) by moving a fastening bolt (136), and if the repairing height is far higher than the height of a cable repairing component for electrician maintenance, namely, using a disassembling component (14) to jack the first lifting platform (12) to the highest height;
the second step is that: according to the height of the cable to be overhauled, the controller (18) is controlled, the hydraulic cylinder (4) is adjusted by the controller (18), the whole console (8) is enabled to move upwards to be close to the cable, then the electronic rotating shaft (15) is continuously controlled, and the camera (17) is enabled to rotate and adjust the height to observe the cable surface in multiple directions;
the third step: data observed by the recording camera (17) are transmitted to the observation panel (10), so that observation and maintenance of the cable can be completed without manual ascending.
9. A method of operating a cable repair assembly for electrician repair according to claim 8, wherein: the tip of dismantling subassembly (14) is the couple form, the tip fixed mounting of first elevating platform (12) bottom surface has the link with dismantling subassembly (14) tip looks adaptation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911187850.6A CN110943398B (en) | 2019-11-28 | 2019-11-28 | Cable maintenance assembly for electrician maintenance and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911187850.6A CN110943398B (en) | 2019-11-28 | 2019-11-28 | Cable maintenance assembly for electrician maintenance and operation method thereof |
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| CN110943398A CN110943398A (en) | 2020-03-31 |
| CN110943398B true CN110943398B (en) | 2020-12-25 |
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| CN208916761U (en) * | 2018-09-14 | 2019-05-31 | 苏州科讯机械设备有限公司 | A kind of articulated arm lift |
| CN109081276A (en) * | 2018-10-18 | 2018-12-25 | 河南工业和信息化职业学院 | A kind of electric power overhaul safety device |
| CN110304593A (en) * | 2019-07-03 | 2019-10-08 | 广西建工集团第二安装建设有限公司 | A kind of upright hoisting auxiliary device of PC column |
| CN210944742U (en) * | 2019-08-02 | 2020-07-07 | 遵义新瑞电力工程有限公司 | Novel portable electric power overhauls frame |
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