CN112217150A - A kind of building cable laying traction device - Google Patents
A kind of building cable laying traction device Download PDFInfo
- Publication number
- CN112217150A CN112217150A CN202011131880.8A CN202011131880A CN112217150A CN 112217150 A CN112217150 A CN 112217150A CN 202011131880 A CN202011131880 A CN 202011131880A CN 112217150 A CN112217150 A CN 112217150A
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- frame
- cable laying
- strut
- traction device
- building cable
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- 230000009194 climbing Effects 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 abstract description 14
- 238000010276 construction Methods 0.000 abstract description 13
- 230000009193 crawling Effects 0.000 description 7
- 241000282326 Felis catus Species 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000001154 acute effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Classifications
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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
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
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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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/30—Installations of cables or lines on walls, floors or ceilings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ladders (AREA)
Abstract
本发明公开一种楼宇电缆敷设牵引装置，属于电缆敷设技术领域，包括车架、车轮、爬梯、撑杆、卷扬装置和推手架，爬梯一端与车架转动连接，另一端通过限位组件与撑杆可拆卸连接，撑杆远离限位组件的一端与车架连接；撑杆上端悬挂有定滑轮，卷扬装置上缠绕有拉绳，拉绳向上绕过定滑轮并向下延伸悬挂有挂钩。通过撑杆与限位组件卡合锁紧，实现爬梯的撑起搭建，形成三角形稳定结构，结构强度高，稳定性好，保证安全作业；卷扬装置运转，带动拉绳缠绕，通过定滑轮导向，实现挂钩上的工具或电缆提升，爬梯上作业人员获取工具或电缆更便捷、省力，节省劳动力，提高作业效率，降低施工成本；爬梯和撑杆均可折叠、拆卸收纳，移动灵活，实用性好。
The invention discloses a building cable laying traction device, belonging to the technical field of cable laying. The strut is detachably connected, and the end of the strut away from the limit component is connected to the frame; the upper end of the strut is hung with a fixed pulley, the hoisting device is wound with a pull rope, and the pull rope goes up around the fixed pulley and extends downward with a hook suspended . Through the latching and locking of the strut and the limit component, the supporting and construction of the climbing ladder is realized, forming a triangular stable structure, with high structural strength and good stability, ensuring safe operation; the operation of the hoisting device drives the winding of the pulling rope, which is guided by the fixed pulley. , to realize the lifting of tools or cables on the hooks, and it is more convenient and labor-saving for the operators on the ladder to obtain tools or cables, saving labor, improving work efficiency, and reducing construction costs; the ladder and struts can be folded, disassembled and stored, flexible and practical it is good.
Description
Technical Field
The invention belongs to the technical field of cable laying, and particularly relates to a building cable laying traction device.
Background
The cable laying refers to a process of laying and installing cables along the checked route to form a cable line. According to the use occasion, the method can be divided into a plurality of laying modes such as overhead, underground (pipelines and direct burial), underwater, walls, tunnels and the like. The reasonable selection of the laying mode of the cable is very important for ensuring the transmission quality, reliability, construction maintenance and the like of the line.
In the process of laying the cable on the wall of the building, an operator is required to climb a ladder for climbing and pull up the cable manually, so that the cable can be laid on the wall of the building. The cable laying operation procedure is complicated, the physical waste of the operators who ascend the height is serious, and potential safety hazards exist; the wall cable needs to be laid by cooperation of multiple persons, so that labor is wasted, and construction cost is increased; the ladder, the laying tool and the coiled cable are inconvenient to move, manual carrying is needed to move, and the construction operation efficiency is seriously influenced.
Disclosure of Invention
The cable laying device aims at solving the problems that the operation process is complicated, the physical waste of operators who ascend a height is serious, and potential safety hazards exist in the cable laying of building walls at present; the wall cable needs to be laid by cooperation of multiple persons, so that labor is wasted, and construction cost is increased; the invention provides a building cable laying traction device, which solves the problems that a ladder, a laying tool and a coiled cable are inconvenient to move, and need to be manually carried and moved, and the construction operation efficiency is seriously influenced.
The invention is realized by the following technical scheme.
A building cable laying traction device comprises a frame, wheels, a ladder, a support rod, a winding device and a pushing frame, wherein the wheels are mounted at the bottom of the frame, and the pushing frame is mounted at one end of the frame; one end of the crawling ladder is rotatably connected with the frame, the other end of the crawling ladder is detachably connected with the support rod through a limiting assembly, and one end of the support rod, far away from the limiting assembly, is connected with the frame; the winding device is installed on the frame, a fixed pulley is hung at one end, close to the limiting assembly, of the support rod, a pull rope is wound on the winding device, and the pull rope upwards bypasses the fixed pulley and extends downwards to be hung with a hook.
The invention is further improved in that the limiting component comprises a connecting plate and two oppositely arranged supporting plates, the connecting plate is connected with the crawling ladder, the supporting plates and the connecting plate are vertically and fixedly arranged, and limiting grooves are formed in the supporting plates; the support rod is provided with a hanging shaft clamped with the limit groove; the diameter of the support rod is smaller than the distance between the two support plates.
The invention is further improved in that the limiting groove is L-shaped, the vertical section of the limiting groove is communicated with the upper edge of the supporting plate, and the horizontal section of the limiting groove is arranged towards the ladder stand.
The invention is further improved in that the supporting plate is of an angle steel structure, and the opening of the supporting plate faces outwards and upwards.
The ladder stand is further improved and is in a shape with a narrow upper part and a wide lower part.
The invention is further improved in that the stay bar is of a tubular structure, and a stay bar bayonet lock for inserting and limiting the stay bar is arranged on the frame.
The invention is further improved in that the pushing handle frame is rotatably connected with the frame, and the frame is provided with a limiting block for limiting the forward pushing direction of the pushing handle frame.
The invention further improves that one end of the push handle frame close to the frame is provided with a supporting leg.
The invention further improves the structure that the front side of one end of the supporting leg far away from the hand pushing frame is provided with a guide wheel.
The invention is further improved in that one end surface of the supporting leg, which is far away from the hand pushing frame, is in a sawtooth shape and is covered with an anti-skid layer.
According to the technical scheme, the invention has the beneficial effects that: 1. the support and the building of the ladder stand are realized by clamping and locking the support rod and the limiting assembly, the frame, the ladder stand and the support rod form an acute-angled triangular stable structure, the structural strength is high, the stability is good, and the safety operation of operators on the ladder stand is ensured; the winding device operates to drive the pull rope to wind, the lifting of the tool or the cable hung on the hook is realized through the guiding of the fixed pulley, the operator on the ladder stand can acquire the tool or the cable more conveniently and more labor-saving, the labor force is greatly saved, the construction operation efficiency is improved, and the construction cost is reduced; cat ladder and vaulting pole all can be folded, dismantle and accomodate, and the whole accessible pushing hands frame push-and-pull of frame is removed, and it is convenient to use, removes in a flexible way, effectively solves the inconvenient problem of instrument and cable removal in laying building wall cable, and the practicality is good. 2. The vaulting pole sets up between two backup pads, controls spacingly through two backup pads to carry on spacingly to the peg through the spacing groove, realize the vaulting pole and to the stable support of cat ladder, guarantee the stability that the cat ladder propped up, the security is good. 3. When the hanging shaft is clamped in the axial limiting groove, firstly the hanging shaft slides in through the vertical section of the limiting groove on the upper edge of the supporting plate, then the hanging shaft is clamped in along the horizontal section of the limiting groove in the direction close to the crawling ladder, and the support rod and the crawling ladder are mutually supported to form a stable triangular structure; when the hook hangs the tool or the operator climbs the ladder, the hanging shaft and the limiting groove can be clamped and self-locked. 4. One side surfaces of the two support plates are arranged in parallel relatively, and the other side surface of the two support plates is arranged on the outer side of the bottom of the two support plates; and the raw materials are easy to obtain, and the manufacturing and processing are easy. 5. The ladder stand has good stability of the whole structure and is safer to use. 6. The support rod clamping pin is used for clamping the bottom end of the support rod, so that the support rod is firmly positioned, the structure is simple, the support rod is convenient to rapidly assemble and disassemble, the flexibility is good, and the practicability is high. 7. The pushing handle frame is pushed, and the pushing direction of the pushing handle frame is limited through a limiting block, so that the flexible movement of the frame is realized; when the device is in an operation state, the handle pushing frame can be rotated to be horizontally placed, so that the device is prevented from being pushed by others by mistake, a certain warning effect is achieved, and the safety is good. 8. By rotating the hand pushing frame, the supporting legs rotate to support one side of the frame, the frame is prevented from sliding on the ground, and the safety is good. 9. When the supporting legs rotate to support the rear side of the frame, the supporting legs can be supported more conveniently and more conveniently through the rolling guide transition of the guide wheels. 10. When the supporting legs are supported, the ground gripping performance is better, the sliding is effectively prevented, and the friction force between the supporting legs and the ground is increased.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, 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 that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of an operation state structure according to an embodiment of the present invention.
Fig. 2 is a side view of the structure of fig. 1.
Fig. 3 is a schematic view of the ladder stand in a folded state according to the embodiment of the present invention.
In the drawings: 1. frame, 2, wheel, 3, cat ladder, 4, vaulting pole, 5, hoisting accessory, 6, motor, 7, fixed pulley, 8, couple, 9, backup pad, 10, peg, 11, spacing groove, 12, pushing hands frame, 13, stopper, 14, landing leg, 15, leading wheel, 16, skid resistant course, 17, draw-in groove, 18, vaulting pole bayonet lock, 19, connecting seat, 20, connecting plate, 21, strengthening rib.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all 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 scope of protection of this patent.
As shown in the attached drawings, the building cable laying traction device comprises a frame 1, wheels 2, a ladder stand 3, a support rod 4, a winding device 5 and a pushing frame 12, wherein the wheels 2 are installed at the bottom of the frame 1, and the pushing frame 12 is installed at one end of the frame 1; one end of the ladder stand 3 is rotatably connected with the frame 1, the other end of the ladder stand is detachably connected with the stay bar 4 through a limiting component, and one end of the stay bar 4 far away from the limiting component is connected with the frame 1; the winding device 5 is installed on the frame 1, a fixed pulley 7 is hung at one end, close to the limiting assembly, of the supporting rod 4, a pull rope is wound on the winding device 5, and the pull rope upwards bypasses the fixed pulley 7 and extends downwards to be hung with a hook 8.
The supporting and building of the ladder stand 3 are realized by clamping and locking the supporting rod 4 and the limiting assembly, the frame 1, the ladder stand 3 and the supporting rod 4 form an acute triangle stable structure, the structural strength is high, the stability is good, and the safety operation of operators on the ladder stand 3 is ensured; the winding device 5 operates to drive the stay rope to wind, the lifting of a tool or a cable hung on the hook 8 is realized through the guiding of the fixed pulley 7, the tool or the cable can be conveniently and labor-saving acquired by an operator on the crawling ladder 3, the winding device 5 can be operated by a single person through a remote controller to act without the cooperation of multiple persons, the labor force is greatly saved, the construction operation efficiency is improved, and the construction cost is reduced; cat ladder 3 and vaulting pole 4 all can be folded, dismantle and accomodate, and the whole accessible of frame 1 pushes away the push-and-pull removal of hand rack 12, and it is convenient to use, removes in a flexible way, effectively solves the inconvenient problem of instrument and cable removal in laying building wall cable, and the practicality is good.
Preferably, the winding device 5 is provided with a wireless remote controller, so that the operation personnel on the crawling ladder 3 can operate conveniently, manpower and material resources are saved, and the operation efficiency is improved.
The frame 1 is also provided with a motor 6 which is in transmission connection with the winding device 5, and the transmission mode is belt transmission. The motor 6 provides power for the winding device 5, the power is stable, and the transmission is stable and reliable.
The limiting assembly comprises a connecting plate 20 and two oppositely arranged supporting plates 9, the connecting plate 20 is connected with the ladder stand 3, the supporting plates 9 and the connecting plate 20 are vertically welded and fixedly installed, and limiting grooves 11 are formed in the supporting plates 9; the stay bar 4 is provided with a hanging shaft 10 clamped with the limit groove 11; the diameter of the support rod 4 is smaller than the distance between the two support plates 9. The supporting rod 4 is arranged between the two supporting plates 9, the two supporting plates 9 are used for limiting left and right, the hanging shaft 10 is limited through the limiting groove 11, stable supporting of the ladder stand 3 by the supporting rod 4 is achieved, the supporting stability of the ladder stand 3 is guaranteed, and the safety is good; preferably, the hanging shaft 10 and the support rod 4 are of a T-shaped structure, stress is balanced, and stability is good.
The limiting groove 11 is L-shaped, the vertical section of the limiting groove is communicated with the upper edge of the supporting plate 9, and the horizontal section of the limiting groove faces the direction of the ladder stand 3. When the hanging shaft 10 is clamped into the limiting groove 11, firstly, the hanging shaft 10 slides in through the vertical section of the limiting groove 11 on the upper edge of the supporting plate 9, then the hanging shaft is clamped into the ladder stand 3 along the horizontal section of the limiting groove 11, and the support rod 4 and the ladder stand 3 are mutually supported to form a stable triangular structure; when the hook 8 is used for hanging tools or an operator climbs the ladder stand 3, the hanging shaft 10 and the limiting groove 11 can be clamped and self-locked, and cannot be separated, so that the safety is good.
The supporting plate 9 is of an angle steel structure, and the opening of the supporting plate faces outwards and upwards. One side surfaces of the two supporting plates 9 are arranged in parallel relatively, and the other side surface is arranged on the outer side of the bottom of the supporting plates 9, so that the supporting plates 9 of the angle steel structure have high structural strength, good stability, difficult deformation and good safety; and the raw materials are easy to obtain, and the manufacturing and processing are easy.
The ladder stand 3 is in a shape with a narrow upper part and a wide lower part. The ladder stand 3 has good stability of the whole structure and is safer to use.
The stay bar 4 is of a tubular structure, and a stay bar bayonet lock 18 for inserting and limiting the stay bar 4 is arranged on the frame 1. Through vaulting pole bayonet lock 18 right 4 bottoms of vaulting pole insert the block, it is firm to vaulting pole 4 location, simple structure, the quick assembly disassembly of the vaulting pole 4 of being convenient for, the flexibility is good, and the practicality is strong.
The handle pushing frame 12 is rotatably connected with the frame 1, and the frame 1 is provided with a limiting block 13 for limiting the forward pushing direction of the handle pushing frame 12. The pushing handle frame 12 is pushed, and the pushing direction of the pushing handle frame 12 is limited through the limiting block 13, so that the flexible movement of the frame 1 is realized; when the device is in an operating state, the handle frame 12 can be rotated to be horizontally placed, so that the device can be prevented from being pushed by others by mistake, a certain warning effect is achieved, and the safety is good.
The frame is characterized in that one end of the handle frame 12 close to the frame 1 is provided with a supporting leg 14, an included angle between the supporting leg 14 and the handle frame 12 is 90-120 degrees, and a reinforcing rib 21 is connected between the supporting leg 14 and the handle frame 12. In an operation state, the support legs 14 rotate to support one side of the frame 1 and tilt the adjacent wheels 2 by rotating the hand pushing frame 12, so that the frame 1 is prevented from sliding on the ground, and the safety is good. Preferably, the wheels 2 have a self-locking function, the frame 1 is prevented from moving in an operating state, and the wheels 2 close to one side of the supporting legs 14 are preferably universal wheels, so that flexible steering is facilitated, and the practicability is good; the provision of the ribs 21 ensures the structural strength of the leg 14. The included angle between the supporting leg 14 and the pushing handle frame 12 is determined according to the fact that when the supporting leg 14 is stably supported, the pushing handle frame 12 is not in contact with the ground, and the problem that the supporting leg 14 is not supported in place due to interference between the pushing handle frame 12 and the ground is solved.
The front side of one end of the supporting leg 14 far away from the pushing handle frame 12 is provided with a guide wheel 15. When the supporting legs 14 rotate to support the rear side of the frame 1, the supporting legs 14 can be supported more conveniently and more conveniently in a labor-saving mode through the rolling guide transition of the guide wheels 15.
The end of the leg 14 remote from the handle frame 12 is serrated and covered with an anti-slip layer 16. When the supporting legs 14 are supported, the ground gripping performance is better, sliding is effectively prevented, the friction force between the supporting legs and the ground is increased, and the safety is good.
The ladder stand 3 is rotatably connected with the frame 1 through a connecting seat 19; and a clamping groove 17 for clamping the limiting component is arranged at one end of the frame 1, which is far away from the connecting seat 19. As shown in fig. 3, when the ladder stand 3 is folded and stored, the lower support rod 4 is detached, so that the ladder stand 3 rotates along the connecting seat 19 and is horizontally placed on the frame 1, the limiting component on the ladder stand is clamped into the clamping groove 17, and the limiting component is limited through the clamping groove 17, so that the stability in the moving and transferring processes is ensured; the support rod 4, the tool and the cable can be placed on the frame 1 for transferring and moving.
According to the building cable laying traction device, the support rod is clamped and locked with the limiting assembly, so that the ladder stand is supported and built, the frame, the ladder stand and the support rod form an acute triangle stable structure, the structural strength is high, the stability is good, and the safety operation of operators on the ladder stand is guaranteed; the winding device operates to drive the pull rope to wind, the lifting of the tool or the cable hung on the hook is realized through the guiding of the fixed pulley, the operator on the ladder stand can acquire the tool or the cable more conveniently and more labor-saving, the labor force is greatly saved, the construction operation efficiency is improved, and the construction cost is reduced; cat ladder and vaulting pole all can be folded, dismantle and accomodate, and the whole accessible pushing hands frame push-and-pull of frame is removed, and it is convenient to use, removes in a flexible way, effectively solves the inconvenient problem of instrument and cable removal in laying building wall cable, and the practicality is good.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative positions if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011131880.8A CN112217150B (en) | 2020-10-21 | 2020-10-21 | Building cable laying draw gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011131880.8A CN112217150B (en) | 2020-10-21 | 2020-10-21 | Building cable laying draw gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112217150A true CN112217150A (en) | 2021-01-12 |
| CN112217150B CN112217150B (en) | 2022-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011131880.8A Expired - Fee Related CN112217150B (en) | 2020-10-21 | 2020-10-21 | Building cable laying draw gear |
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| Country | Link |
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| CN (1) | CN112217150B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112623982A (en) * | 2021-01-14 | 2021-04-09 | 成都市成华区钞向露商贸有限公司 | Prevent wind and have protect function's building hoisting device |
| CN113594968A (en) * | 2021-08-24 | 2021-11-02 | 中铁九局集团电务工程有限公司 | Pin-connected panel cable laying device |
| CN115241803A (en) * | 2022-08-19 | 2022-10-25 | 国网黑龙江省电力有限公司七台河供电公司 | Laying device for installing cable hanging rack in cable trench |
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| CN203476191U (en) * | 2013-09-02 | 2014-03-12 | 国家电网公司 | Combined ladder |
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| CN209510222U (en) * | 2018-12-14 | 2019-10-18 | 营口利环专用汽车实业有限公司 | A kind of trailer is stretched getting-on ladder with folding lightweight idler wheel |
| CN211115753U (en) * | 2019-09-12 | 2020-07-28 | 陕西久益电力工程有限公司 | Electric power overhaul frame |
| US20200256070A1 (en) * | 2017-08-04 | 2020-08-13 | Suzhou Pica Aluminum Industry Ltd. | An unlocking structure of workbench ladder |
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2020
- 2020-10-21 CN CN202011131880.8A patent/CN112217150B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008141891A (en) * | 2006-12-04 | 2008-06-19 | Chugoku Electric Power Co Inc:The | Cable elevating apparatus |
| CN202423974U (en) * | 2011-12-12 | 2012-09-05 | 河南省电力公司安阳供电公司 | Crossing support for overhead lines |
| CN203476191U (en) * | 2013-09-02 | 2014-03-12 | 国家电网公司 | Combined ladder |
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| US20200256070A1 (en) * | 2017-08-04 | 2020-08-13 | Suzhou Pica Aluminum Industry Ltd. | An unlocking structure of workbench ladder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112623982A (en) * | 2021-01-14 | 2021-04-09 | 成都市成华区钞向露商贸有限公司 | Prevent wind and have protect function's building hoisting device |
| CN113594968A (en) * | 2021-08-24 | 2021-11-02 | 中铁九局集团电务工程有限公司 | Pin-connected panel cable laying device |
| CN115241803A (en) * | 2022-08-19 | 2022-10-25 | 国网黑龙江省电力有限公司七台河供电公司 | Laying device for installing cable hanging rack in cable trench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112217150B (en) | 2022-02-22 |
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