CN115108508B - Power insulator replacement construction system and construction method - Google Patents
Power insulator replacement construction system and construction method Download PDFInfo
- Publication number
- CN115108508B CN115108508B CN202210817348.4A CN202210817348A CN115108508B CN 115108508 B CN115108508 B CN 115108508B CN 202210817348 A CN202210817348 A CN 202210817348A CN 115108508 B CN115108508 B CN 115108508B
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- lifting
- operation platform
- pedal
- peripheral
- lifting operation
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 239000012212 insulator Substances 0.000 title claims abstract description 16
- 230000002093 peripheral effect Effects 0.000 claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims description 24
- 238000013016 damping Methods 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 4
- 239000003989 dielectric material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/042—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations actuated by lazy-tongs mechanisms or articulated levers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a power insulator replacement construction system in the field of electric construction, which comprises a carrier and a scissor fork type lifter, wherein a lifting operation platform is fixedly connected above the scissor fork type lifter, and an annular peripheral guardrail is arranged at the periphery above the lifting operation platform; the invention also discloses a construction method for replacing the power insulator. According to the invention, the tool box is arranged on the outer side of the peripheral guardrail, so that the operation space of the lifting operation platform can be effectively enlarged, the tool box can be rotated to various positions in a pedal manner, tools can be conveniently taken and stored at different positions, the problem of action of the lifting platform caused by mistaken touch of an operation key during operation of an operator can be effectively avoided by arranging the controller component on the outer side of the outer enclosure frame, the key identification can ensure the accuracy of the key, and meanwhile, the controller body can be provided with sunshade and waterproof protection by arranging the waterproof sheath and the outer enclosure frame.
Description
Technical Field
The invention relates to the field of electrical construction, in particular to a power insulator replacement construction system and a construction method.
Background
In the electrical construction of building, usually need to work on different heights, so need elevating gear to send the staff to on the higher position, the toolbox in the current elevating gear is mostly placed in the guardrail inboard, occupation space operation space, it is very inconvenient, and the instrument of placing in the toolbox in the outside is got and is taken inconvenient, simultaneously the controller subassembly is mostly set up inboard, the easy mistake of touching during operation exists the risk, and the controller subassembly that the inboard set up is controlled, need the low head look over button and discern, consequently, the person of skill in the art provides an electric insulator and changes construction system, in order to solve the problem that proposes among the above-mentioned background art.
Disclosure of Invention
The invention aims to provide a power insulator replacement construction system and a construction method, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a construction system is changed to electric insulator, includes carrier and scissor lift, scissor lift top fixedly connected with lift operation platform, lift operation platform top periphery is provided with annular peripheral guardrail, be located on the lift operation platform peripheral guardrail below is provided with circular slide rail, be located on the lift operation platform circular slide rail periphery equidistant is provided with six sliders, the slider with circular slide rail rotates to be connected, circular slide rail top with fixed mounting has the connection support column between the peripheral guardrail, equidistant fixedly connected with four toolboxes on the peripheral guardrail lateral wall, be located on the lift operation platform circular slide rail below has seted up the transmission cavity, the transmission cavity inside be provided with the friction pulley of circular slide rail immediately, friction pulley one side is provided with the pivot, the pivot other end is provided with unidirectional drive gear, be located on the lift operation platform the pivot other end position has seted up the supporting hole, the inside lift sliding connection of supporting hole has the lift slide bar, the lift slide bar top is provided with the pedal bar, the pedal bar top is provided with the pedal hole, the pedal bar is pressed with the pedal, the pedal is pressed with the pedal in the bottom of support hole, the pedal is provided with the one-way with the pedal, the pedal is formed with the pedal.
As a further scheme of the invention: the unidirectional transmission gear is in unidirectional transmission connection with the rotating shaft through a ratchet wheel and a ratchet, the rotating shaft is in rotary connection with the lifting operation platform through a bearing, the pedal rod is in screw connection with the lifting slide rod, and the pedal plate is in screw connection with the pedal rod.
As a further scheme of the invention: and a multistage telescopic damping rod is fixedly connected to one side of a scissor lifting mechanism of the scissor lift between the upper and lower platform plates of the scissor lift.
As a further scheme of the invention: the upper relative position of the peripheral guard rail is connected with two door bodies through a hinge, and the door bodies are connected with the opposite side of the hinge between the peripheral guard rail and the door bodies through a door lock.
As a further scheme of the invention: the lifting operation platform is characterized in that a lifting hydraulic cylinder is fixedly arranged on the outer side of the peripheral guardrail, a controller component is fixedly arranged at the top end of the lifting hydraulic cylinder, and the controller component comprises a controller body, a peripheral protecting frame arranged on the periphery of the controller body, a key mark arranged on the top surface of the peripheral protecting frame, a waterproof sheath arranged on the periphery of a key module on the controller body and a pressing ring arranged on the periphery of the waterproof sheath.
As a further scheme of the invention: the waterproof sheath is fixedly connected with the controller body in a pressing mode through a pressing ring, the key marks are engraved on the outer enclosure frame, the key modules correspond to the key marks one by one, and the lifting pedal is arranged on one side of the pedal at the center of the lifting operation platform.
The power insulator replacement construction method uses the power insulator replacement construction system.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the invention, the tool box is placed outside the peripheral guard rail, so that the working space of the lifting working platform can be effectively enlarged, and the tool box can be rotated to various positions in a pedal manner, so that tools can be conveniently taken and stored at different positions, and the operation is convenient and fast especially under the condition of construction operation by one hand.
2. According to the invention, the controller component is arranged on the outer side of the outer enclosure frame, so that the problem of action of the lifting platform caused by misoperation of touching the operation keys during operation of operators can be effectively avoided, the accuracy of the keys can be ensured by the key identification, meanwhile, the controller body can be provided with sunshade and waterproof protection by arranging the waterproof sheath and the outer enclosure frame, and the problem of lines caused by water inlet of the controller body is further avoided.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a block diagram of a controller assembly according to the present invention;
FIG. 4 is a cross-sectional view of a key module portion of the controller assembly of the present invention;
FIG. 5 is a cross-sectional view of the lifting platform of the present invention at the location of the connection support post;
FIG. 6 is a cross-sectional view of FIG. 2 at A-A in accordance with the present invention;
fig. 7 is an enlarged view of a portion of the unidirectional transmission gear portion of fig. 6 in accordance with the present invention.
In the figure: 0. a carrier; 1. a scissor lift; 2. lifting the operation platform; 3. a multi-stage telescopic damping rod; 4. a peripheral guard rail; 5. an access door body; 6. a tool box; 7. a controller assembly; 701. a controller body; 702. an outer enclosure frame; 703. a key identification; 704. a key module; 705. a pressing ring; 706. a waterproof jacket; 8. a circular slide rail; 9. a lifting hydraulic cylinder; 10. connecting a support column; 11. a slide block; 12. a transmission cavity; 13. a friction wheel; 14. a rotating shaft; 15. a foot pedal; 16. a foot pedal lever; 17. lifting the slide bar; 18. straight teeth; 19. a unidirectional transmission gear; 20. a support hole; 21. a return spring; 22. and lifting the pedal.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-7, in an embodiment of the invention, an electric insulator replacing construction system comprises a carrier 0 and a scissor lift 1, wherein a lifting operation platform 2 is fixedly connected above the scissor lift 1, an annular peripheral guardrail 4 is arranged on the periphery above the lifting operation platform 2, a circular slide rail 8 is arranged below the peripheral guardrail 4 on the lifting operation platform 2, six sliding blocks 11 are arranged on the periphery of the circular slide rail 8 at equal intervals on the lifting operation platform 2, the sliding blocks 11 are rotationally connected with the circular slide rail 8, a connecting support column 10 is fixedly arranged between the top end of the circular slide rail 8 and the peripheral guardrail 4, four tool boxes 6 are fixedly connected on the outer side wall of the peripheral guardrail 4 at equal intervals, a transmission cavity 12 is arranged below the circular slide rail 8 on the lifting operation platform 2, a rotary shaft 14 is arranged on one side of the friction wheel 13, a unidirectional transmission gear 19 is arranged on the other end of the rotary shaft 14, a supporting hole 20 is formed in the other end of the lifting operation platform 2, a lifting slide bar 17 is connected with the inner lifting slide bar, a pedal 16 is arranged at the bottom end of the pedal 16, a pedal plate 17 is meshed with the pedal 17, and the pedal 17 is integrally pressed with the pedal 17.
Through adopting above-mentioned technical scheme, can be when needing to use the instrument, can be through pedal running-board 15, can step on the lift slide bar 17 downward movement, straight tooth 18 and one-way drive gear 19 transmission, can drive one-way drive gear 19 rotation, can drive friction pulley 13 rotation then, can drive circular slide rail 8 rotation, after the foot is released, can be under reset spring 21's effect, lift slide bar 17 upwards resets, one-way drive gear 19 does not rotate, the repetition is operated, can drive peripheral guardrail 4 and rotate, rotate the toolbox 6 to the different positions of lift operation platform 2, the taking of instrument is deposited of being convenient for, through placing toolbox 6 in the peripheral guardrail 4 outside, can effectually enlarge the operation space of lift operation platform 2, and toolbox 6 adopts pedal mode can rotate each position, be convenient for take the deposit of instrument in different positions, especially under the condition of single hand carrying out construction operation.
The unidirectional transmission gear 19 is in unidirectional transmission connection with the rotating shaft 14 through a ratchet wheel and a ratchet, the rotating shaft 14 is in rotary connection with the lifting operation platform 2 through a bearing, the pedal rod 16 is in screw connection with the lifting slide rod 17, the pedal plate 15 is in screw connection with the pedal rod 16, and the unidirectional transmission gear 19 can only rotate towards one direction through the ratchet wheel and the ratchet wheel.
The multi-stage telescopic damping rod 3 is fixedly connected to one side of the scissor lifting mechanism of the scissor lift 1 between the upper platform plate and the lower platform plate of the scissor lift 1, and the problem that the control side operation is easy to be unbalanced due to the fact that one side of the existing scissor lift 1 is empty after the existing scissor lift 1 is lifted can be solved by arranging the multi-stage telescopic damping rod 3.
The opposite positions of the peripheral guard rails 4 are connected with two access door bodies 5 through hinges, and one sides of the access door bodies 5 opposite to the peripheral guard rails 4 with the hinges are connected through door locks, so that personnel can conveniently access.
The lifting hydraulic cylinder 9 is fixedly arranged on the lifting operation platform 3 and located outside the peripheral guardrail 4, the controller component 7 is fixedly arranged at the top end of the lifting hydraulic cylinder 9, the controller component 7 comprises a controller body 701, a peripheral protection frame 702 arranged on the periphery of the controller body 701, a key mark 703 arranged on the top surface of the peripheral protection frame 702, a waterproof jacket 706 arranged on the periphery of a key module 704 on the controller body 701 and a pressing ring 705 arranged on the periphery of the waterproof jacket 706, the waterproof jacket 706 and the controller body 701 are fixedly pressed by the pressing ring 705, the key mark 703 is engraved on the peripheral protection frame 702, the key module 704 corresponds to the key mark 703 one by one, the lifting pedal 22 is arranged on one side of the pedal 15 at the center of the lifting operation platform 3, the lifting pedal 22 can execute lifting operation after three times of stepping, and the problem of stepping error can be effectively avoided after the lifting operation is executed once.
Through adopting above-mentioned technical scheme, through setting up controller subassembly 7 in the outside of outer enclosure frame 702, can effectually avoid because the problem that the operation button was touched to the mistake when the operation personnel was operated leads to the lift platform action, and button sign 703 can ensure the accuracy of button, simultaneously, through setting up waterproof sheath 706 and outer enclosure frame 702, can provide sunshade and waterproof protection for controller body 701, and then avoid controller body 701 to advance water and lead to the problem of circuit.
The working principle of the invention is as follows: when the lifting device is used, the lifting device can be placed at a proper position, meanwhile, rollers can be arranged at the bottom of the scissor lift 1, the lifting device is convenient to move, personnel can enter the lifting operation platform 2 by opening the door body 5, then the scissor lift 1 can be controlled to act through the controller component 7, lifting adjustment of the lifting operation platform 2 is realized, the problem that the control side operation is easy to be unbalanced due to the fact that one side of the existing scissor lift 1 is empty after lifting can be solved through the multistage telescopic damping rod 3, during operation, the problem that the lifting platform acts due to misoperation of the operating keys during operation of the operating personnel can be effectively avoided through the arrangement of the controller component 7 at the outer side of the outer enclosure frame 702, and the accuracy of the keys can be ensured through the key identification 703, by arranging the waterproof sheath 706 and the peripheral protective frame 702, sunshade and waterproof protection can be provided for the controller body 701, so that the problem of circuits caused by water inflow of the controller body 701 is avoided, but when tools are needed, the pedal 15 can be stepped on to move the lifting slide rod 17 downwards, the straight teeth 18 are driven by the unidirectional transmission gear 19 to drive the unidirectional transmission gear 19 to rotate, then the friction wheel 13 can be driven to rotate, the circular slide rail 8 can be driven to rotate, after the feet are loosened, the lifting slide rod 17 is reset upwards under the action of the reset spring 21, the unidirectional transmission gear 19 does not rotate, the peripheral guardrail 4 can be driven to rotate, the tool box 6 is rotated to all positions on the periphery of the lifting operation platform 2, the tools are convenient to take and store, the lifting hydraulic cylinder 22 is arranged, the height of the controller assembly 7 is convenient to adjust, it can be lowered to the bottom when not in use, without affecting the rotational adjustment of the tool box 6.
Meanwhile, different adjustment effects are realized by different treading modes aiming at the pedal 15, the treading modes specifically comprise deep treading and shallow treading, the adjustment effects comprise quick adjustment and fine adjustment, when the pedal 15 is deeply treaded, the straight teeth 18 are completely positioned below the unidirectional transmission gear 19, at the moment, no interaction is generated between the unidirectional transmission gear 19 and the straight teeth 18, so that the peripheral guardrail 4 can continue to rotate by virtue of rotation inertia generated in the treading process, and further, the quick rotation of the peripheral guardrail 4 can be realized in the continuous repeated deep treading process; the interaction relationship between the unidirectional transmission gear 19 and the spur gear 18 is not released all the time when the tread is shallow, so that the position of the peripheral guard rail 4 can be finely adjusted by continuous shallow tread.
Example two
The power insulator replacement construction method uses the power insulator replacement construction system.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides a construction system is changed to electric power insulator, includes carrier (1) and scissor lift (1), its characterized in that: the utility model discloses a lifting device, including a scissors fork type lifter (1), a lifting operation platform (2) is fixedly connected with above, lifting operation platform (2) top periphery is provided with annular peripheral guardrail (4), be located on lifting operation platform (2) peripheral guardrail (4) below is provided with circular slide rail (8), be located on lifting operation platform (2) circular slide rail (8) periphery equidistant is provided with six slider (11), slider (11) with circular slide rail (8) swivelling joint, circular slide rail (8) top with fixedly mounted with connection support column (10) between peripheral guardrail (4), equidistant fixedly connected with four toolboxes (6) on peripheral guardrail (4) lateral wall, be located on lifting operation platform (2) circular slide rail (8) below has seted up transmission cavity (12), transmission cavity (12) inside be provided with circular slide rail (8) immediate friction wheel (13), friction wheel (13) one side is provided with pivot (14), other end (14) are located pivot (20) are located in the one-way in pivot (20) of lifting operation platform, pivot (20) are located in the pivot (20), the top end of the lifting slide bar (17) is provided with a pedal bar (16), the top end of the pedal bar (16) is provided with a pedal plate (15), a reset spring (21) is clamped and pressed at the bottom of the bottom end of the lifting slide bar (17) and the bottom of the supporting hole (20), and straight teeth (18) meshed with the unidirectional transmission gear (19) are integrally formed on the outer wall of the lifting slide bar (17); the opposite positions of the peripheral guardrails (4) are connected with two access door bodies (5) through hinges, and one side, opposite to the hinges, of each access door body (5) is connected with the peripheral guardrails (4) through a door lock; lifting hydraulic cylinders (9) are fixedly arranged on the outer sides of the peripheral guardrails (4) of the lifting operation platform (3), controller components (7) are fixedly arranged at the top ends of the lifting hydraulic cylinders (9), each controller component (7) comprises a controller body (701), a peripheral guard frame (702) arranged on the controller body (701), key marks (703) arranged on the top surfaces of the peripheral guard frames (702), waterproof sheaths (706) arranged on the periphery of the key modules (704) on the controller body (701) and pressing rings (705) arranged on the periphery of the waterproof sheaths (706).
2. The power insulator replacement construction system according to claim 1, wherein: the unidirectional transmission gear (19) is in unidirectional transmission connection with the rotating shaft (14) through a ratchet wheel and a ratchet, the rotating shaft (14) is in rotary connection with the lifting operation platform (2) through a bearing, the foot pedal rod (16) is in screw connection with the lifting slide rod (17), and the foot pedal (15) is in screw connection with the foot pedal rod (16).
3. The power insulator replacement construction system according to claim 1, wherein: a multistage telescopic damping rod (3) is fixedly connected to one side of a scissor lifting mechanism of the scissor lift (1) between an upper platform plate and a lower platform plate of the scissor lift (1).
4. The power insulator replacement construction system according to claim 1, wherein: the waterproof sheath (706) and the controller body (701) are fixedly connected with each other in a pressing mode through a pressing ring (705), the key marks (703) are engraved on the peripheral protective frame (702), the key modules (704) correspond to the key marks (703) one by one, and the lifting pedal (22) is arranged on one side of the pedal (15) at the central position of the lifting operation platform (3).
5. A power insulator replacement construction method, characterized in that it uses the power insulator replacement construction system according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210817348.4A CN115108508B (en) | 2022-07-12 | 2022-07-12 | Power insulator replacement construction system and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210817348.4A CN115108508B (en) | 2022-07-12 | 2022-07-12 | Power insulator replacement construction system and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115108508A CN115108508A (en) | 2022-09-27 |
| CN115108508B true CN115108508B (en) | 2024-05-14 |
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ID=83332319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210817348.4A Active CN115108508B (en) | 2022-07-12 | 2022-07-12 | Power insulator replacement construction system and construction method |
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| Country | Link |
|---|---|
| CN (1) | CN115108508B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199014B (en) * | 2022-07-12 | 2024-05-14 | 西格码电气股份有限公司 | Electrical construction lifting device |
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| KR200418543Y1 (en) * | 2006-03-27 | 2006-06-12 | 김선환 | Lift for a high place work |
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| CN210563292U (en) * | 2019-06-21 | 2020-05-19 | 苏州富力宝物流机械有限公司 | Scissor lift with rotary tool box |
| KR102173585B1 (en) * | 2020-02-03 | 2020-11-04 | 주식회사 대성사 | Apparatus for exchanging the distribution line in the status of on line |
| CN212050433U (en) * | 2020-04-01 | 2020-12-01 | 北京尤莱特通信技术有限公司 | Adjustable operation platform for communication line maintenance |
| CN212893776U (en) * | 2020-08-27 | 2021-04-06 | 西部黄金克拉玛依哈图金矿有限责任公司 | Mine that security performance is high is strutted lift platform for installation operation |
| CN214192481U (en) * | 2020-12-28 | 2021-09-14 | 济南福迎门车辆有限公司 | Protective guard of lift |
| CN216141214U (en) * | 2021-09-15 | 2022-03-29 | 湖北大缔建设集团消防工程有限公司 | Safety elevator for fire engineering |
| CN115199014A (en) * | 2022-07-12 | 2022-10-18 | 西格码电气股份有限公司 | Electric construction lifting device |
-
2022
- 2022-07-12 CN CN202210817348.4A patent/CN115108508B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200418543Y1 (en) * | 2006-03-27 | 2006-06-12 | 김선환 | Lift for a high place work |
| CN105253833A (en) * | 2015-11-17 | 2016-01-20 | 苏州市汉诺威升降台有限公司 | Automatic rotating type working-aloft platform |
| CN209242622U (en) * | 2018-11-28 | 2019-08-13 | 绍兴原野电器有限公司 | A kind of architectural electricity construction lifting device |
| CN210563292U (en) * | 2019-06-21 | 2020-05-19 | 苏州富力宝物流机械有限公司 | Scissor lift with rotary tool box |
| KR102173585B1 (en) * | 2020-02-03 | 2020-11-04 | 주식회사 대성사 | Apparatus for exchanging the distribution line in the status of on line |
| CN212050433U (en) * | 2020-04-01 | 2020-12-01 | 北京尤莱特通信技术有限公司 | Adjustable operation platform for communication line maintenance |
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| CN214192481U (en) * | 2020-12-28 | 2021-09-14 | 济南福迎门车辆有限公司 | Protective guard of lift |
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| CN115199014A (en) * | 2022-07-12 | 2022-10-18 | 西格码电气股份有限公司 | Electric construction lifting device |
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| CN115108508A (en) | 2022-09-27 |
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