CN112271644A - Laying auxiliary device for low-voltage cable - Google Patents
Laying auxiliary device for low-voltage cable Download PDFInfo
- Publication number
- CN112271644A CN112271644A CN202011217461.6A CN202011217461A CN112271644A CN 112271644 A CN112271644 A CN 112271644A CN 202011217461 A CN202011217461 A CN 202011217461A CN 112271644 A CN112271644 A CN 112271644A
- Authority
- CN
- China
- Prior art keywords
- clamping
- low
- snap ring
- voltage cables
- moving mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
Abstract
The invention discloses a laying auxiliary device for low-voltage cables, which belongs to the technical field of cable laying and comprises a lifting mechanism, wherein a workbench is arranged on the lifting mechanism, a power mechanism is arranged on the workbench, the power mechanism is connected with a moving mechanism, the moving mechanism is connected with a clamping mechanism, a cushion seat is arranged in the clamping mechanism, an open snap ring is arranged on the cushion seat, and the low-voltage cables are arranged in the open snap ring. The cable is specially designed for hanging the cable, the traditional manual cat ladder is abandoned, the cable is hung by using machinery, the labor capacity is small, the danger of climbing and falling or electric shock is avoided, and the life safety of workers is ensured.
Description
Technical Field
The invention relates to the technical field of cable laying, in particular to a laying auxiliary device for a low-voltage cable.
Background
The wire and cable is used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion. A wire cable in a broad sense, also referred to as a cable for short, refers to an insulated cable, which can be defined as: an aggregate consisting of; one or more insulated wire cores, and their respective possible coatings, total protective layers and outer jackets, the cable may also have additional conductors without insulation.
In the cable laying process, the condition that a hanging wall is laid in a suspension mode or directly laid in a suspension mode is often met, the manual crawling ladder is generally needed to be hung in an auxiliary mode at the moment, and the cable is hung on a support (generally a support rod) of a supporting line through connecting pieces such as a hoop.
The manual crawling ladder is large in labor amount of hanging the cable, and maintainers are easy to slip off and get an electric shock in the process of climbing or hanging the cable.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides a laying assisting device for low-voltage cables; this a lay auxiliary device for low tension cable is special for hanging to put the cable design and forms, and traditional artifical cat ladder is abandoned to this application and is hung and put the cable, utilizes machinery to accomplish to hang and puts, and the amount of labour is little, does not have the climbing to fall or the danger of electrocute, guarantees workman's life safety.
In order to solve the technical problem, the laying auxiliary device for the low-voltage cable comprises a lifting mechanism, wherein a workbench is arranged on the lifting mechanism, a power mechanism is arranged on the workbench, the power mechanism is connected with a moving mechanism, the moving mechanism is connected with a clamping mechanism, a cushion seat is arranged in the clamping mechanism, an open clamping ring is placed on the cushion seat, and the low-voltage cable is placed in the open clamping ring.
In a further improvement of the invention, the power mechanism comprises a hydraulic cylinder, and the extending end of the hydraulic cylinder is connected with the moving mechanism.
Through the design, the scheme can more conveniently finish the clamping and the closing of the open snap ring; when the hydraulic cylinder is used, the hydraulic cylinder can be replaced by power equipment such as a cylinder, an electric cylinder and the like, and a user can set the hydraulic cylinder according to the economic requirement and the use requirement of the user.
In a further improvement of the invention, the moving mechanism comprises a sliding plate connected with the extending end of the hydraulic cylinder, and the sliding plate is provided with a clamping mechanism; the sliding plate is connected with the workbench in a sliding manner.
Through the design, the scheme can more conveniently complete the movement of the clamping mechanism, so that the clamping and the closing of the opening clamping ring are completed, and during use, the sliding plate slides on the workbench back and forth under the support of the power of the hydraulic cylinder.
In a further improvement of the invention, the workbench is provided with a sliding chute, and the sliding plate is in sliding connection with the sliding chute.
Through the design, the sliding plate can slide more conveniently.
In a further improvement of the invention, the clamping mechanism comprises a clamping column connected with the sliding plate, and a clamping groove is arranged on the clamping column.
Through the design, the clamping stable opening clamping ring can be more conveniently clamped.
In the further improvement of the invention, the power mechanism comprises a power mechanism I and a power mechanism II, and the power mechanism I and the power mechanism II have the same structure; the moving mechanism comprises a moving mechanism I and a moving mechanism II, and the moving mechanism I and the moving mechanism II have the same structure; fixture includes fixture I and fixture II, and fixture I is the same with fixture II structure.
Through the design, the clamping and the closing of the opening clamping ring can be more conveniently completed by the scheme.
In a further improvement of the invention, the pad seat is provided with a bottom groove; the cushion seat is arranged between the clamping groove of the clamping mechanism I and the clamping groove of the clamping mechanism II; the split snap ring is placed between the clamping groove and the bottom groove of the clamping mechanism I and the clamping groove of the clamping mechanism II.
Through the design, the split snap ring can be clamped stably when the split snap ring is used.
In a further improvement of the invention, two open ends of the split snap ring are oppositely arranged; the clamping groove of the clamping mechanism I and the clamping groove of the clamping mechanism II are oppositely arranged.
Through the design, the split snap ring is of the butt type, and when the split snap ring is used, two ends of the split snap ring are closed together.
In the further improvement of the invention, the two open ends of the open snap ring are arranged in a staggered manner; the clamping groove of the clamping mechanism I and the clamping groove of the clamping mechanism II are arranged in a staggered mode.
Through the design, the split snap ring is of a staggered type, and when the split snap ring is used, only two ends of the split snap ring need to be closed in a staggered mode.
In a further improvement of the invention, the snap ring is semicircular or rectangular; the lifting mechanism adopts a hydraulic lifter.
Through the design, the opening of the opening clamping ring can be conveniently closed, the lifting mechanism directly adopts the hydraulic lifter in the prior art, the lifting of the working table can be well guaranteed, research and development cost can be reduced, production as soon as possible can be realized, and economic benefits are generated.
Compared with the prior art, the invention has the following beneficial effects:
the cable hanger is specially designed for hanging cables, the traditional manual cat ladder for hanging cables is abandoned, the cable hanger is hung by utilizing mechanisms such as a lifting mechanism, a workbench, a power mechanism, a moving mechanism, a clamping mechanism, a cushion seat and an opening clamping ring, the labor capacity is small, the danger of climbing and falling or electric shock is avoided, and the life safety of workers is ensured.
Drawings
To more clearly illustrate the background art or the technical solutions of the present invention, the following brief description of the drawings incorporated in the prior art or the detailed description of the present invention; it should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is to be given the full breadth of the present disclosure, and are not intended to limit the scope of the present disclosure.
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic view 1 of the working principle of embodiment 1 of the present invention.
Fig. 3 is a schematic diagram 2 of the working principle of embodiment 1 of the present invention.
Fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 5 is a schematic structural diagram of embodiment 3 of the present invention.
Fig. 6 is a schematic view of the working principle of embodiment 3 of the present invention.
Shown in the figure: 1-a workbench; 2-a hydraulic cylinder; 3-a chute; 4, sliding plates; 5-clamping the column; 6-clamping a groove; 7-a cushion seat; 8-bottom groove; 100-split snap ring; 200-closed split snap ring; 300-closed staggered split snap ring; 400-supporting rods; 500-low voltage cable; 600-wall body.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following will make clear and complete description of the technical solution in the embodiments of the present invention 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, rather than all embodiments, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention shall fall within the protection scope of the present invention.
Meanwhile, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like referred to in the present specification indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, it is not to be understood that the present invention is limited to changes or adjustments of relative relationships thereof, and also to be considered as a scope in which the present invention can be implemented without substantial technical changes.
Meanwhile, in the description of the present specification, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected", and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other, so that the specific meaning of the terms in the invention can be understood by those skilled in the art through specific situations.
Example 1
As shown in fig. 1-3, an auxiliary laying device for low-voltage cables comprises a lifting mechanism, wherein a workbench 1 is arranged on the lifting mechanism, a power mechanism is arranged on the workbench 1, the power mechanism is connected with a moving mechanism, the moving mechanism is connected with a clamping mechanism, a pad seat 7 is arranged in the clamping mechanism, a snap ring 100 is placed on the pad seat 7, and a low-voltage cable 500 is placed in the snap ring 100.
The power mechanism comprises a hydraulic cylinder 2, and the extending end of the hydraulic cylinder 2 is connected with the moving mechanism.
The moving mechanism comprises a sliding plate 4 connected with the extending end of the hydraulic cylinder 2, and a clamping mechanism is arranged on the sliding plate 4; the sliding plate 4 is connected with the workbench 1 in a sliding way.
The workbench 1 is provided with a sliding chute 3, and a sliding plate 4 is in sliding connection with the sliding chute 3.
The clamping mechanism comprises a clamping column 5 connected with the sliding plate 4, and a clamping groove 6 is formed in the clamping column 5.
The power mechanism comprises a power mechanism I and a power mechanism II, and the power mechanism I and the power mechanism II have the same structure; the moving mechanism comprises a moving mechanism I and a moving mechanism II, and the moving mechanism I and the moving mechanism II have the same structure; fixture includes fixture I and fixture II, and fixture I is the same with fixture II structure.
A bottom groove 8 is arranged on the cushion seat; the cushion seat 7 is arranged between the clamping groove of the clamping mechanism I and the clamping groove of the clamping mechanism II; the split snap ring 100 is placed between the clamping groove of the clamping mechanism I, the bottom groove 8 and the clamping groove of the clamping mechanism II.
The split snap ring 100 is semicircular or rectangular; the lifting mechanism adopts a hydraulic lifter.
The hydraulic lifting machine further comprises a computer, and the hydraulic lifting machine and the hydraulic cylinder are connected with the computer (or a PLC) respectively and controlled by the computer.
The two open ends of the split snap ring 100 are oppositely arranged (opposite split snap ring); the clamping groove of the clamping mechanism I and the clamping groove of the clamping mechanism II are oppositely arranged.
When the width of pressing from both sides groove and kerve is almost as good as the diameter of split snap ring, this embodiment is more applicable to butt formula split snap ring (split snap ring), when the width of pressing from both sides groove and kerve is bigger than split snap ring's diameter, this embodiment is more applicable to wrong formula split snap ring, but this moment, the width of kerve just in time equals that the vertical distance between the oblique section two in wrong formula split snap ring bottom is better, so, the kerve alright block wrong formula split snap ring, better assurance is firm steady to wrong formula split snap ring centre gripping.
This embodiment is suitable for when the gap between bracing piece and wall body 600 is great or the bracing piece hangs empty.
Example 2
The most difference between this embodiment and the above embodiments is that the relative positions of the clamping grooves of the two clamping columns are different, as shown in fig. 4, the two open ends of the snap ring are arranged in a staggered manner (a staggered snap ring); the clamping groove of the clamping mechanism I and the clamping groove of the clamping mechanism II are arranged in a staggered mode.
This embodiment more is fit for being used for wrong formula snap ring, and is higher than the firm degree of stability of connection of hair style snap ring to wrong formula snap ring, because the bottom to wrong formula snap ring is oblique, not in a plane, consequently, fixture I's double-layered groove and fixture II's double-layered groove also need the setting of wrong some to this shape of adaptation to wrong formula snap ring bottom.
This embodiment is applicable to when the gap between bracing piece and the wall body is great or the bracing piece hangs the sky.
Example 3
As shown in fig. 5 and 6, the greatest difference between the present embodiment and the above embodiments is that the clamping and the shoe are higher, which is more convenient for the case that the gap between the support rod and the wall is smaller.
This embodiment is applicable to when the bracing piece is installed on wall body 600, also is applicable to the bracing piece and hangs when empty, and application scope is widest.
The implementation steps of the scheme are as follows: placing the split snap ring on the clamping groove and the bottom groove, starting a worker by using a computer-controlled hydraulic cylinder, clamping the split snap ring (only clamping but not closing at first), placing a cable in the split snap ring, lifting the worker by using a computer-controlled hydraulic elevator, placing the support rod 400 in the split snap ring, starting the worker by using the computer-controlled hydraulic cylinder, enabling two ends of an opening of the split snap ring to slowly approach under the extrusion of the clamping groove, and finally closing the opening (such as a closed split snap ring 200 and a closed staggered split snap ring 300 shown in fig. 3 and 4), starting and retracting the worker by using the computer-controlled hydraulic cylinder, descending the worker by using the computer-controlled hydraulic elevator, and continuing to hang other parts of the cable until the task is completed.
In the cable laying process, the situation of hanging wall in the air or directly hanging wall in the air often occurs, at this time, a manual ladder stand is generally needed for auxiliary suspension, and the cable is hung on a support (generally a support rod 400) of a support line through connecting pieces such as a hoop and the like; the manual crawling ladder is large in labor amount of hanging the cable, and maintainers are easy to slip off and get an electric shock in the process of climbing or hanging the cable.
Therefore, the design concept of this application is just to design a mechanical equipment, replaces the workman to scramble and hang and puts the cable, avoids personnel to take place accidents such as landing, electric shock at the in-process of climbing or hanging and put the cable.
Although the present invention has been described in detail with reference to the preferred embodiments, the present invention is not limited thereto, and those skilled in the art can make various equivalent modifications or substitutions on the embodiments of the present invention without departing from the spirit and essence of the present invention, and those modifications or substitutions should be considered as being within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and therefore, the scope of the present invention should be determined by the scope of the claims.
Claims (10)
1. A laying assisting device for low-voltage cables is characterized in that: the automatic clamping device comprises a lifting mechanism, wherein a workbench is arranged on the lifting mechanism, a power mechanism is arranged on the workbench, the power mechanism is connected with a moving mechanism, the moving mechanism is connected with a clamping mechanism, a pad seat is arranged in the clamping mechanism, an opening clamping ring is placed on the pad seat, and a low-voltage cable is placed in the opening clamping ring.
2. A laying aid for low-voltage cables according to claim 1, characterised in that: the power mechanism comprises a hydraulic cylinder, and the extending end of the hydraulic cylinder is connected with the moving mechanism.
3. A laying aid for low-voltage cables according to claim 2, characterised in that: the moving mechanism comprises a sliding plate connected with the extending end of the hydraulic cylinder, and a clamping mechanism is arranged on the sliding plate; the sliding plate is connected with the workbench in a sliding manner.
4. A laying aid for low-voltage cables according to claim 3, characterized in that: the workbench is provided with a sliding chute, and the sliding plate is in sliding connection with the sliding chute.
5. A laying aid for low-voltage cables according to claim 3, characterized in that: the clamping mechanism comprises a clamping column connected with the sliding plate, and a clamping groove is formed in the clamping column.
6. A laying aid for low-voltage cables according to claim 5, characterized in that: the power mechanism comprises a power mechanism I and a power mechanism II, and the power mechanism I and the power mechanism II have the same structure; the moving mechanism comprises a moving mechanism I and a moving mechanism II, and the moving mechanism I and the moving mechanism II have the same structure; fixture includes fixture I and fixture II, and fixture I is the same with fixture II structure.
7. A laying aid for low-voltage cables according to claim 6, characterized in that: a bottom groove is formed in the cushion seat; the cushion seat is arranged between the clamping groove of the clamping mechanism I and the clamping groove of the clamping mechanism II; the split snap ring is placed between the clamping groove and the bottom groove of the clamping mechanism I and the clamping groove of the clamping mechanism II.
8. A laying aid for low-voltage cables according to claim 7, characterized in that: the two open ends of the open snap ring are oppositely arranged; the clamping groove of the clamping mechanism I and the clamping groove of the clamping mechanism II are oppositely arranged.
9. A laying aid for low-voltage cables according to claim 7, characterized in that: the two open ends of the open snap ring are arranged in a staggered manner; the clamping groove of the clamping mechanism I and the clamping groove of the clamping mechanism II are arranged in a staggered mode.
10. A laying aid for low-voltage cables according to claim 1, characterised in that: the split snap ring is semicircular or rectangular; the lifting mechanism adopts a hydraulic lifter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011217461.6A CN112271644B (en) | 2020-11-04 | 2020-11-04 | Laying auxiliary device for low-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011217461.6A CN112271644B (en) | 2020-11-04 | 2020-11-04 | Laying auxiliary device for low-voltage cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112271644A true CN112271644A (en) | 2021-01-26 |
| CN112271644B CN112271644B (en) | 2022-01-28 |
Family
ID=74345995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011217461.6A Active CN112271644B (en) | 2020-11-04 | 2020-11-04 | Laying auxiliary device for low-voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112271644B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61206796A (en) * | 1985-03-11 | 1986-09-13 | 東芝プラント建設株式会社 | Method of installing cable tray |
| JP2016152698A (en) * | 2015-02-18 | 2016-08-22 | 住友電気工業株式会社 | Cable lifting device and cable laying method |
| CN109149442A (en) * | 2018-09-28 | 2019-01-04 | 国网山东省电力公司潍坊供电公司 | A kind of hanging wire clamp connection lifting arm |
| CN109742690A (en) * | 2019-01-22 | 2019-05-10 | 广州供电局有限公司 | Cable laying auxiliary device |
| CN208843672U (en) * | 2018-06-26 | 2019-05-10 | 陈嘉亮 | A kind of electric aerial work auxiliary device |
| CN209516467U (en) * | 2019-02-27 | 2019-10-18 | 李春丽 | A kind of electric system stringing auxiliary device |
| CN111130022A (en) * | 2020-02-14 | 2020-05-08 | 杨士坤 | Auxiliary wiring device of electric locomotive |
| CN210926835U (en) * | 2019-12-31 | 2020-07-03 | 河北凯强建筑安装工程有限公司 | Auxiliary mounting bracket for electric power engineering |
| CN211377397U (en) * | 2020-03-18 | 2020-08-28 | 深圳粤能能源技术有限公司 | Power maintenance equipment |
| CN211701261U (en) * | 2020-05-14 | 2020-10-16 | 深圳市良全建筑装饰工程设计有限公司 | Cable laying frame for assisting cable laying |
-
2020
- 2020-11-04 CN CN202011217461.6A patent/CN112271644B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61206796A (en) * | 1985-03-11 | 1986-09-13 | 東芝プラント建設株式会社 | Method of installing cable tray |
| JP2016152698A (en) * | 2015-02-18 | 2016-08-22 | 住友電気工業株式会社 | Cable lifting device and cable laying method |
| CN208843672U (en) * | 2018-06-26 | 2019-05-10 | 陈嘉亮 | A kind of electric aerial work auxiliary device |
| CN109149442A (en) * | 2018-09-28 | 2019-01-04 | 国网山东省电力公司潍坊供电公司 | A kind of hanging wire clamp connection lifting arm |
| CN109742690A (en) * | 2019-01-22 | 2019-05-10 | 广州供电局有限公司 | Cable laying auxiliary device |
| CN209516467U (en) * | 2019-02-27 | 2019-10-18 | 李春丽 | A kind of electric system stringing auxiliary device |
| CN210926835U (en) * | 2019-12-31 | 2020-07-03 | 河北凯强建筑安装工程有限公司 | Auxiliary mounting bracket for electric power engineering |
| CN111130022A (en) * | 2020-02-14 | 2020-05-08 | 杨士坤 | Auxiliary wiring device of electric locomotive |
| CN211377397U (en) * | 2020-03-18 | 2020-08-28 | 深圳粤能能源技术有限公司 | Power maintenance equipment |
| CN211701261U (en) * | 2020-05-14 | 2020-10-16 | 深圳市良全建筑装饰工程设计有限公司 | Cable laying frame for assisting cable laying |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112271644B (en) | 2022-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213326600U (en) | Lifting device for building electrical construction | |
| CN112271644B (en) | Laying auxiliary device for low-voltage cable | |
| CN108046156A (en) | A kind of mutual inductor installation installation rack | |
| CN111825001A (en) | Suspension device for mounting power equipment for power engineering | |
| CN104514485A (en) | Overhead-line rod working ladder | |
| CN206076833U (en) | A kind of wire-binding device of convenient use | |
| CN207134594U (en) | One kind ground wire suspension arrangement | |
| CN212166351U (en) | Safety belt fixing structure for transformer | |
| CN210029948U (en) | Safety device is used in hoisting equipment maintenance | |
| CN108678650B (en) | Modular protection frame is used in thermal power station construction | |
| CN203435837U (en) | Multifunctional electrician stool | |
| CN103326264A (en) | Single-pole perpendicularly-telescopic outdoor high-voltage alternating-current disconnector replacing method | |
| CN112664130B (en) | Special support frame for electric well maintenance | |
| CN110842887A (en) | Power distribution network salvagees and uses toolbox | |
| CN214899822U (en) | Cable overhauls climbing with electric wire netting communication and uses auxiliary structure | |
| CN210041066U (en) | Safety device is used in power supply facility construction in district | |
| CN219061557U (en) | Vertical setting device for oil production derrick | |
| CN217783061U (en) | Double-loop transmission tower | |
| CN108988206B (en) | Electric power system outdoor operation maintenance vehicle | |
| CN219792437U (en) | Portable high-altitude operation platform | |
| CN211851631U (en) | Hydraulic engineering is with overhauing cat ladder | |
| CN215711085U (en) | Borrowing lifting appliance for lifting vertical expansion joint of GIL lower-layer tubular bus | |
| CN210609945U (en) | Adjustable industrial electrical cabinet | |
| CN210366901U (en) | Lifting device convenient for electric power overhaul work | |
| CN220086887U (en) | Combined high-voltage cable protection tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |