Overhead transmission line crossing construction protection device

Abstract

This utility model relates to the field of power construction technology, and in particular to a protective device for overhead transmission line crossing construction. It includes two sets of overhead transmission line crossing construction frames. The device utilizes a first and second ceramic guide wheel to insulate and clamp the transmission line. A hydraulic cylinder adjusts the distance between the insulated connection box and the transmission line according to the height of the overhead transmission line crossing construction frame, facilitating operation on transmission lines at different heights. A retractable steel cable guides the clamped transmission line, allowing it to be moved to another set of overhead transmission line crossing construction frames. This reduces the danger of manually pulling the transmission line at height, thus providing a certain degree of protection for worker safety.

Description

Technical Field

[0001] This utility model relates to the field of power construction technology, and in particular to a protective device for overhead transmission line crossing construction. Background Technology

[0002] With the continuous growth of electricity demand and the rapid development of power grid construction in my country, overhead transmission lines, as an important means of power transmission, face increasingly complex construction environments. Especially when crossing existing lines, highways, railways, rivers, or other obstacles, construction safety has become a crucial aspect of ensuring the smooth progress of power projects and preventing accidents. During transmission line installation, one end of the transmission line needs to be fixed to a set of overhead transmission line crossing frames, and then the other end is manually pulled to fix it to another set of overhead transmission line crossing frames to achieve the purpose of crossing and installation. Furthermore, this series of operations involves working at heights, posing certain safety risks.

[0003] Traditional cross-line construction protection techniques have the following problems: while there is some safety concern when manually pulling power lines, the protection effect on personal safety is poor. In addition, the power lines are generally long, and the pulling process is time-consuming and laborious, thus affecting the efficiency of power line installation.

[0004] To address the above issues, it is necessary to design a protective device for overhead power transmission line crossing construction, thereby overcoming these problems. Utility Model Content

[0005] The main purpose of this utility model is to provide a protective device for construction of overhead transmission line crossings, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An overhead transmission line crossing construction protection device includes an overhead transmission line crossing construction frame. The number of overhead transmission line crossing construction frames is two sets. An insulating connection box is provided on the upper side of each set of overhead transmission line crossing construction frames, and a protective component is provided on one side of the insulating connection box.

[0008] The protective assembly includes a mounting frame disposed inside one end of a set of insulating connection boxes. A rotating roller is mounted on the middle of the mounting frame via a bearing. Limiting discs are respectively provided at both ends of the outer wall of the rotating roller. A steel rope is wound around the outer wall of the rotating roller. A hand crank is connected to one end of the rotating roller. A crossbar is installed at the front end of the mounting frame. An electric telescopic rod is installed on the upper side of the crossbar. There are two sets of electric telescopic rods. Support blocks are provided on the upper side of the two sets of electric telescopic rods. A wear-resistant block is provided in the middle of the support blocks. A connecting seat is installed inside the other set of insulating connection boxes. A limiting chuck is installed in the middle of the connecting seat. A guide slider is provided on the outer wall of the steel rope. A guide wheel is installed on the upper side of the guide slider.

[0009] As a preferred embodiment of this utility model, a hydraulic cylinder is provided at the lower end of the guide slider, an insulating support plate is provided on the lower side of the hydraulic cylinder, a connecting rod is provided on the lower side of the insulating support plate, a concave connecting block is provided on the lower side of the connecting rod, arc-shaped clamping blocks are respectively installed on both sides of the lower inner wall of the concave connecting block, a second cylinder is installed on the left outer wall of the arc-shaped clamping block, the second cylinder passes through the arc-shaped clamping block and is connected to a second ceramic guide wheel, and a first cylinder is installed on the right outer wall of the arc-shaped clamping block, the first cylinder passes through the arc-shaped clamping block and is connected to a first ceramic guide wheel.

[0010] As a preferred embodiment of this utility model, the mounting frame is fixedly installed between itself and the insulating connection box, the rotating roller is rotatably connected to the mounting frame via a bearing, and the hand crank is fixedly connected to the rotating roller.

[0011] As a preferred embodiment of this utility model, the limiting disc is snapped together with the rotating roller, the crossbar is fixedly installed with the mounting frame, and the electric telescopic rod is fixedly connected with the crossbar.

[0012] As a preferred embodiment of this utility model, the electric telescopic rod is fixedly connected to the support block, the wear-resistant block is fixedly connected to the support block, the connecting seat is fixedly installed to the insulating connecting box, and the limiting chuck is rotatably connected to the connecting seat through a bearing.

[0013] As a preferred embodiment of this utility model, the guide slider is fixedly connected to the hydraulic cylinder, and the hydraulic cylinder is fixedly connected to the insulating support plate.

[0014] As a preferred embodiment of this utility model, the insulating support plate is fixedly installed between the connecting rod and the insulating support plate, the concave connecting block is fixedly installed between the connecting rod and the concave connecting block, and the arc-shaped clamping block is fixedly installed between the arc-shaped clamping block and the concave connecting block.

[0015] As a preferred embodiment of this utility model, the first cylinder is fixedly connected to the arc-shaped clamping block, the first cylinder is fixedly connected to the first ceramic guide wheel, the second cylinder is fixedly connected to the arc-shaped clamping block, and the second cylinder is fixedly connected to the second ceramic guide wheel.

[0016] Beneficial effects

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention designs a protective device for overhead power line crossing construction. A first and second ceramic guide wheel insulates and clamps the power transmission line. A hydraulic cylinder adjusts the distance between the insulated connection box and the power transmission line crossing construction frame according to the height of the box, facilitating operation on power transmission lines at different heights. A retractable steel cable guides the clamped power transmission line, allowing it to be moved to another set of overhead power line crossing construction frames. This reduces the danger of manually pulling power transmission lines at heights, thus providing a certain degree of protection for worker safety. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the overhead transmission line crossing construction frame and the insulation connection box of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the arc-shaped clamping block and the second ceramic guide wheel of this utility model;

[0021] Figure 3 This is a schematic diagram of the steel rope and rotating roller of this utility model;

[0022] Figure 4 This is a structural schematic diagram of part A of this utility model.

[0023] In the diagram: 1. Overhead transmission line crossing construction frame; 2. Insulating connection box; 3. Protective components; 301. Guide slider; 302. Guide wheel; 303. Hydraulic cylinder; 304. Insulating support plate; 305. Connecting rod; 306. Concave connecting block; 307. Arc-shaped clamping block; 308. First cylinder; 309. First ceramic guide wheel; 310. Second cylinder; 311. Second ceramic guide wheel; 312. Mounting frame; 313. Rotating roller; 314. Limiting disc; 315. Hand crank; 316. Steel rope; 317. Connecting seat; 318. Limiting chuck; 319. Crossbar; 320. Support block; 321. Electric telescopic rod; 322. Wear-resistant block. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1-4 As shown, an overhead transmission line crossing construction protection device includes an overhead transmission line crossing construction frame 1. The number of overhead transmission line crossing construction frames 1 is two sets. An insulating connection box 2 is provided on the upper side of each of the two sets of overhead transmission line crossing construction frames 1, and a protective component 3 is provided on one side of the insulating connection box 2.

[0026] The protective component 3 includes a mounting frame 312 located inside one end of an insulating connection box 2. A rotating roller 313 is mounted on the middle of the mounting frame 312 via a bearing. Limiting discs 314 are respectively provided at both ends of the outer wall of the rotating roller 313. A steel rope 316 is wound around the outer wall of the rotating roller 313. A hand crank 315 is connected to one end of the rotating roller 313. A crossbar 319 is installed at the front end of the mounting frame 312. An electric telescopic rod 321 is installed on the upper side of the crossbar 319. There are two sets of electric telescopic rods 321. A support block 320 is provided on the upper side of the two sets of electric telescopic rods 321. A wear-resistant block 322 is provided in the middle of the support block 320. A connecting seat 317 is installed inside the other set of insulating connection boxes 2. A limiting chuck 318 is installed in the middle of the connecting seat 317. A guide slider 301 is provided on the outer wall of the steel rope 316. A guide wheel 302 is installed on the upper side of the guide slider 301.

[0027] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3As shown, a hydraulic cylinder 303 is provided at the lower end of the guide slider 301. An insulating support plate 304 is provided on the lower side of the hydraulic cylinder 303. A connecting rod 305 is provided on the lower side of the insulating support plate 304. A concave connecting block 306 is provided on the lower side of the connecting rod 305. Arc-shaped clamping blocks 307 are respectively installed on both sides of the lower inner wall of the concave connecting block 306. A second cylinder 310 is installed on the left outer wall of the arc-shaped clamping block 307. The second cylinder 310 passes through the arc-shaped clamping block 307 and is connected to the first Two ceramic guide wheels 311 are installed on the right outer wall of the arc-shaped clamping block 307. A first cylinder 308 is installed on the right outer wall of the arc-shaped clamping block 307. The first cylinder 308 passes through the arc-shaped clamping block 307 and is connected to the first ceramic guide wheel 309. The mounting frame 312 is fixedly installed between the mounting frame 2 and the insulating connection box 2. The rotating roller 313 is rotatably connected to the mounting frame 312 through a bearing. The hand crank 315 is fixedly connected to the rotating roller 313. The limiting plate 314 is engaged with the rotating roller 313. The crossbar 319 is connected to the mounting frame 312. The following components are fixedly installed: electric telescopic rod 321 is fixedly connected to crossbar 319; electric telescopic rod 321 is fixedly connected to support block 320; wear-resistant block 322 is fixedly connected to support block 320; connecting seat 317 is fixedly installed to insulating connecting box 2; limit chuck 318 is rotatably connected to connecting seat 317 via bearing; guide slider 301 is fixedly connected to hydraulic cylinder 303; hydraulic cylinder 303 is fixedly connected to insulating support plate 304; insulating support plate 304 is fixedly installed to connecting rod 305; concave connecting block 306 is fixedly installed to connecting rod 305; arc-shaped clamping block 307 is fixedly installed to concave connecting block 306; first cylinder 308 is fixedly connected to arc-shaped clamping block 307; first cylinder 308 is fixedly connected to first ceramic guide wheel 309; second cylinder 310 is fixedly connected to arc-shaped clamping block 307; second cylinder 310 is fixedly connected to second ceramic guide wheel 311.

[0028] The first ceramic guide wheel 309 and the second ceramic guide wheel 311 are used to insulate and clamp the power transmission line, effectively preventing construction personnel from being electrocuted. The height of the guide slider 301 is adjusted by the hydraulic cylinder 303 to adapt to power transmission lines of different heights, ensuring construction safety.

[0029] Among them, the traction effect of steel cable 316 reduces the need for manual high-altitude pulling of power transmission lines, thus reducing construction risks;

[0030] Among them, the telescopic function of the electric telescopic pole 321 enables precise positioning of the power transmission line and improves construction efficiency. The coordinated operation of the hand crank 315 and the rotating roller 313 enables rapid movement of the power transmission line and reduces construction time.

[0031] The working process of this utility model is as follows: When using the overhead transmission line crossing construction protection device designed in this scheme, after determining the two sets of overhead transmission line crossing construction frames 1 to be installed, workers need to climb onto the overhead transmission line crossing construction frames 1 respectively. One end of the transmission line is pre-installed onto one set of the overhead transmission line crossing construction frames 1. The height of the arc-shaped clamping block 307 from the transmission line is adjusted by the extension and retraction of the hydraulic cylinder 303. The tension of the first ceramic guide wheel 309 and the second ceramic guide wheel 311 clamping the transmission line is adjusted by the first cylinder 308 and the second cylinder 310 respectively. After fixing the transmission line to be pulled, the overhead transmission line is then pulled through. Workers on the road crossing construction frame 1 rotate hand cranks 315 to drive steel ropes 316, which in turn move guide sliders 301, thus moving the power transmission line. When the line moves to another set of overhead power transmission lines crossing the construction frame 1, the hand cranks 315 are stopped, and the electric telescopic rod 321 is retracted to lock the wear-resistant block 322 onto the outer wall of the steel rope 316, thus limiting its position. Workers can then proceed with the installation. The number of insulating support plates 304 is controlled according to the length of the power transmission line, which improves the ease of installation. Workers do not need to pull the power transmission line to complete the installation, saving manpower and improving personal safety.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective device for construction work during overhead transmission line crossings, comprising an overhead transmission line crossing construction frame (1), characterized in that: The number of overhead transmission line crossing construction frames (1) is two sets. Each set of overhead transmission line crossing construction frames (1) is equipped with an insulating connection box (2) on the upper side. A protective component (3) is provided on one side of the insulating connection box (2). The protective assembly (3) includes a mounting frame (312) disposed inside one end of a set of insulating connection boxes (2). A rotating roller (313) is mounted on the middle of the mounting frame (312) via a bearing. Limiting discs (314) are respectively provided at both ends of the outer wall of the rotating roller (313). A steel rope (316) is wound around the outer wall of the rotating roller (313). A hand crank (315) is connected to one end of the rotating roller (313). A crossbar (319) is installed at the front end of the mounting frame (312). An electric motor is installed on the upper side of the crossbar (319). The electric telescopic rod (321) is provided in two sets. The upper side of the two sets of electric telescopic rods (321) is provided with a support block (320). The middle part of the support block (320) is provided with a wear-resistant block (322). The inner side of the other set of insulating connection box (2) is provided with a connecting seat (317). The middle part of the connecting seat (317) is provided with a limit chuck (318). The outer wall of the steel rope (316) is provided with a guide slider (301). The upper side of the guide slider (301) is provided with a guide wheel (302).

2. The overhead transmission line crossing construction protection device according to claim 1, characterized in that: A hydraulic cylinder (303) is provided at the lower end of the guide slider (301). An insulating support plate (304) is provided on the lower side of the hydraulic cylinder (303). A connecting rod (305) is provided on the lower side of the insulating support plate (304). A concave connecting block (306) is provided on the lower side of the connecting rod (305). Arc-shaped clamping blocks (307) are respectively installed on both sides of the lower inner wall of the concave connecting block (306). A second cylinder (310) is installed on the left outer wall of the arc-shaped clamping block (307). The second cylinder (310) passes through the arc-shaped clamping block (307) and is connected to a second ceramic guide wheel (311). A first cylinder (308) is installed on the right outer wall of the arc-shaped clamping block (307). The first cylinder (308) passes through the arc-shaped clamping block (307) and is connected to a first ceramic guide wheel (309).

3. The overhead transmission line crossing construction protection device according to claim 1, characterized in that: The mounting bracket (312) is fixedly installed between the mounting bracket (312) and the insulating connection box (2), the rotating roller (313) is rotatably connected to the mounting bracket (312) through a bearing, and the hand crank (315) is fixedly connected to the rotating roller (313).

4. The overhead transmission line crossing construction protection device according to claim 1, characterized in that: The limiting plate (314) is engaged with the rotating roller (313), the crossbar (319) is fixedly installed with the mounting frame (312), and the electric telescopic rod (321) is fixedly connected with the crossbar (319).

5. The overhead transmission line crossing construction protection device according to claim 1, characterized in that: The electric telescopic rod (321) is fixedly connected to the support block (320), the wear-resistant block (322) is fixedly connected to the support block (320), the connecting seat (317) is fixedly installed to the insulating connecting box (2), and the limiting chuck (318) is rotatably connected to the connecting seat (317) through a bearing.

6. The overhead transmission line crossing construction protection device according to claim 2, characterized in that: The guide slider (301) is fixedly connected to the hydraulic cylinder (303), and the hydraulic cylinder (303) is fixedly connected to the insulating support plate (304).

7. The overhead transmission line crossing construction protection device according to claim 2, characterized in that: The insulating support plate (304) is fixedly installed between the connecting rod (305), the concave connecting block (306) is fixedly installed between the connecting rod (305), and the arc-shaped clamping block (307) is fixedly installed between the concave connecting block (306).

8. A protective device for overhead transmission line crossing construction according to claim 2, characterized in that: The first cylinder (308) is fixedly connected to the arc-shaped clamping block (307), the first cylinder (308) is fixedly connected to the first ceramic guide wheel (309), the second cylinder (310) is fixedly connected to the arc-shaped clamping block (307), and the second cylinder (310) is fixedly connected to the second ceramic guide wheel (311).

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