Electric power calandria lowering tool

Abstract

The utility model relates to an electric power calandria lowering tool which comprises a support erected across a foundation pit, a vertically-through long hole is formed in the center of the support, and a chain capable of extending to the edge of the foundation pit is arranged in the long hole in a penetrating mode. The end, suspended below the long hole, of the chain is fixedly connected with a bent frame transversely extending along the foundation pit, and the bent frame is provided with a strip hole transversely extending along the foundation pit. The lower end of the framed bent is provided with a hanging ring which can longitudinally move along the framed bent after penetrating through the strip-shaped hole. Buffer blocks with the length larger than the radius of the electric power tube bank are arranged on the two sides of the hanging ring, and the hanging ring is provided with hooks facing the front side and / or the rear side. The problem that material loss is likely to be caused below the electric power calandria is solved, stable lowering of the electric power calandria can be achieved, and the safety of workers is guaranteed.

Description

Technical Field

[0001] The present application belongs to the technical field of municipal pipeline construction, and specifically relates to a tool for lowering electric power pipes. Background Art

[0002] Pipeline construction is an important part of municipal construction, and one of the steps in power pipeline construction is the lowering of power pipelines. Power pipelines are special pipelines for substation cable inlet and outlet and overhead lines underground, and they also have the function of providing supporting electricity for plots along the line.

[0003] Existing power pipe lowering operations usually use a method of mechanical batch lifting to lower pipes or manual lowering of pipes one by one. However, due to the deep depth of the power pipeline foundation pit, it is difficult for machine operators or workers to control the power pipes during the lowering process, resulting in excessive losses of the power pipes due to frequent slipping and touching the foundation pit wall during the lowering process. Summary of the invention

[0004] The present invention provides an electric power pipe lowering tool, which solves the problem of easy material loss under the electric power pipe in the prior art.

[0005] The technical solution of the present invention is as follows:

[0006] A tool for lowering an electric power pipe comprises a bracket erected across a foundation pit, wherein a long hole penetrating from top to bottom is provided at the center of the bracket, and a chain extending to the edge of the foundation pit is passed through the long hole; one end of the chain suspended below the long hole is fixedly connected to a rack extending transversely along the foundation pit, and the rack has strip holes extending transversely along the foundation pit; a hanging ring is provided at the lower end of the rack, which can move longitudinally along the rack after passing through the strip holes, and buffer blocks with a length greater than the radius of the electric power pipe are provided on both sides of the hanging ring, and the hanging ring is provided with hooks facing the front and / or rear.

[0007] Furthermore, the long hole is a rectangular hole, and the length of the rectangular hole is greater than the length of the hook.

[0008] Furthermore, slopes are provided on both sides of the rectangular hole to prevent jamming.

[0009] Furthermore, the hook is of a right angle type, and has a horizontal section and a vertical section.

[0010] Furthermore, the horizontal section of the hook is provided with anti-slip rubber.

[0011] Furthermore, a pin for fixing the chain is provided on one side of the bracket.

[0012] Furthermore, a blocking piece is provided in the middle of the long hole, and the blocking piece is hingedly connected to one of the inner side surfaces of the long hole so that the blocking piece can separate the long hole into two areas.

[0013] Due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0014] 1. When the present application is in use, the two brackets are placed opposite to each other, and the spacing between them can be determined according to the length of different power pipes. The hooks of the present application can support the pipes from both ends. When multiple power pipes are placed side by side, their weight is large, which can generate almost the same pressure on the hooks at both ends at the same time, evenly driving the chains on both sides to move downward, and preventing the power pipes from falling off the hooks.

[0015] 2. This application allows workers to stand on one side of the foundation pit to work, and workers do not need to lean out of the pit to place the power pipes, reducing safety hazards. In specific use, workers stand on one side of the foundation pit and can hang the power pipes on one side of the foundation pit by pulling the rack. When hanging, bypass the bracket and hang the farthest power pipe first. After hanging, release the hanging ring, repeat the above steps, and hang all the power pipes in turn. This application sets buffer blocks on both sides of the hanging ring, which can effectively alleviate the vibration generated when releasing the hanging ring, prevent the power pipe from falling off the hook, and can effectively reduce losses and ensure the safety of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0017] Figure 1 A schematic diagram of the structure of a power pipe lowering tool provided for this application;

[0018] Figure 2 It is a schematic diagram of the structure of the rack described in this application.

[0019] In the attached picture:

[0020] 1. Foundation pit; 2. Bracket; 3. Long hole; 4. Chain; 5. Rack; 6. Bar hole; 7. Hanging ring; 8. Buffer block; 9. Hook; 10. Slope; 11. Anti-slip rubber; 12. Latch; 13. Baffle. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the content of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0022] Based on the background technology, it is necessary to avoid collision when lowering the power pipe to prevent material damage. Figure 1 and attached Figure 2As shown, the present application provides a tool for lowering an electric power pipe, comprising a bracket 2 erected across a foundation pit 1, wherein a long hole 3 penetrating from top to bottom is provided at the center of the bracket 2, and a chain 4 extending to the edge of the foundation pit 1 is passed through the long hole 3; one end of the chain 4 suspended below the long hole 3 is fixedly connected to a rack 5 extending transversely along the foundation pit 1, and the rack 5 has strip holes 6 extending transversely along the foundation pit 1; a hanging ring 7 is provided at the lower end of the rack 5, which can move longitudinally along the rack 5 after passing through the strip holes 6, and buffer blocks 8 with a length greater than the radius of the electric power pipe are provided on both sides of the hanging ring 7, and the hanging ring 7 is provided with hooks 9 facing the front and / or rear.

[0023] When in use, two brackets 2 form a group or multiple brackets 2 are arranged at intervals, and the brackets 2 are set on both sides of the soil of the foundation pit 1 according to the length of the power pipe. The bracket 2 has a certain height, and a long hole 3 is set in the center of the top surface of the bracket 2, and a chain 4 for hanging the rack 5 passes through the long hole 3. The middle and lower part of the rack 5 is hollowed out to form a bar hole 6, and a hanging ring 7 passes through the bar hole 6. Buffer blocks 8 are set on both sides of the hanging ring 7 for shock absorption. The hanging ring 7 is provided with forward and / or backward hooks 9 for carrying the power pipe. The hanging ring 7 and the buffer block 8 are an integrated structure and can slide together at the bar hole 6.

[0024] When installing the electric pipe, the worker stands on one side of the foundation pit 1, places the chain 4 at the end of the long hole 3 close to the inside, passes the chain 4 of the rack 5 around the front side of the bracket 2, tilts the rack 5 so that the hanging ring 7 slides to the near hand end, first hangs the electric pipe on the hook 9 at the farthest side, then hangs the electric pipe from far to near in sequence, and finally releases the rack 5. When releasing the rack 5, it can be slightly rotated to prevent the bracket 2 from blocking the electric pipe, and then the chain 4 is controlled to lower the electric pipe at a certain rate. When the electric pipe reaches the bottom of the foundation pit 1, the chain 4 can be pulled outward to make the hook 9 detach from the electric pipe, and then the next set of operations can be carried out.

[0025] As a preferred embodiment of the present application, the long hole 3 is a rectangular hole, and the length of the long hole 3 is greater than the length of the hook 9. The rectangular hole has a larger adjustment range, which can tolerate the length error of the power pipe and avoid repeated adjustment of the distance of the bracket 2.

[0026] In a specific embodiment of the above-mentioned implementation manner, a slope 10 is provided at the position where the chain 4 hangs down from the rectangular hole, so as to prevent the edge of the rectangular hole from getting stuck on the chain 4 and stabilize the power pipe below.

[0027] As a preferred embodiment of the present application, the hook 9 is a right-angle type. The right-angle hook 9 has a longer contact length with the end of the power pipe and better support, which helps to balance the forces at both ends of the power pipe and avoid the power pipe from tilting during the downward process.

[0028] In a specific example of the above embodiment, an anti-skid rubber 11 is provided on the horizontal section of the right-angle hook 9 to prevent the hook 9 at one end from being separated from the power pipe when the power pipe is tilted.

[0029] As a preferred embodiment of the present application, a latch 12 is provided on one side of the bracket 2, and the latch 12 can pass through the chain 4 to fix the chain 4, and the chain 4 is fixed for the process of installing the power pipe.

[0030] As a preferred embodiment of the present application, a baffle 13 is provided in the long hole 3, one end of the baffle 13 is hinged to the inner side surface of the long hole 3, and the baffle 13 can rotate and divide the long hole 3 into two areas to prevent the chain 4 from shifting during the rising or falling process.

[0031] The above description is only the basic principle and preferred embodiments of the present invention. Improvements and substitutions made by those skilled in the art based on the present invention belong to the protection scope of the present invention.

Claims

1. A power pipe lowering tool, comprising a bracket erected across a foundation pit, characterized in that: A long hole extending vertically through the bracket is provided at the center, and a chain extending to the edge of the foundation pit is passed through the long hole; one end of the chain suspended below the long hole is fixedly connected to a rack extending transversely along the foundation pit, and the rack has bar holes extending transversely along the foundation pit; a hanging ring is provided at the lower end of the rack, which can move longitudinally along the rack after passing through the bar hole, and buffer blocks with a length greater than the radius of the power pipe are provided on both sides of the hanging ring, and the hanging ring is provided with hooks facing the front and / or rear.

2. The electric pipe lowering tool according to claim 1, characterized in that: The long hole is a rectangular hole, and the length of the rectangular hole is greater than the length of the hook.

3. The electric pipe lowering tool according to claim 2, characterized in that: Slope surfaces for preventing jamming are arranged on both sides of the rectangular hole.

4. The electric pipe lowering tool according to claim 1, characterized in that: The hook is of a right angle type and has a horizontal section and a vertical section.

5. The electric pipe lowering tool according to claim 4, characterized in that: The horizontal section of the hook is provided with anti-slip rubber.

6. The electric pipe lowering tool according to claim 1, characterized in that: A latch for fixing the chain is provided on one side of the bracket.

7. The electric pipe lowering tool according to claim 1, characterized in that: A blocking piece is provided in the middle of the long hole, and the blocking piece is hingedly connected to one of the inner side surfaces of the long hole so that the blocking piece can separate the long hole into two areas.

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