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Tool special for transformer bushing oil drain valve maintenance

A technology for transformer bushings and special tools, which is applied in the direction of manufacturing tools, wrenches, wrenches, etc., to achieve the effect of convenient maintenance

Active Publication Date: 2014-10-08
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a special tool for inspection and maintenance of transformer bushing oil drain valve, which can solve the oil discharge problems of various transformer bushing oil drain valves

Method used

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  • Tool special for transformer bushing oil drain valve maintenance
  • Tool special for transformer bushing oil drain valve maintenance
  • Tool special for transformer bushing oil drain valve maintenance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 , figure 2 and image 3 As shown, the special tool for maintenance of transformer bushing oil drain valve includes a handle 1, one end of the handle 1 is provided with an adjustable wrench 2, the upper surface of the other end of the handle 1 is provided with a size-adjustable four-corner wrench, and the lower surface is provided with a size-adjustable wrench. The circular sleeve; the four-corner wrench includes four jaw stops 3 of upper, lower, left and right.

[0022] At least two of the four jaw stops 3 are arc-shaped.

[0023] The jaw block 3 is respectively provided with threaded holes, and an adjusting screw 4 is arranged in the said threaded holes, and the adjusting screw 4 is matched with the threaded holes.

[0024] The size-adjustable circular sleeve includes multiple layers of sleeves 5 nested in each other, the inner surface of the side wall of the outermost sleeve is provided with uniformly distributed longitudinal ribs, the inner surfa...

Embodiment 2

[0029] Such as Figure 4 As shown, the difference between the present embodiment and the first embodiment is that the jaw block 3 and the handle 1 form a movable cooperation with the chute 7 through the slider, and the chute 7 is provided with a limiting device.

[0030] The limiting device is a limiting groove 8 .

[0031] When in use, the oil discharge method of the common oil discharge valve and the cylindrical oil discharge valve is the same as that of the first embodiment. For the quadrangular oil discharge valve, the jaw stopper 3 is lifted from the limit groove 8 and then slides along the chute 7, sliding After arriving at a suitable position, press it down into the limit groove, so that the jaw stopper 3 can clamp the oil drain valve, and then the oil can be drained.

Embodiment 3

[0033] Such as Figure 5 As shown, the difference between the present embodiment and the second embodiment is that the limiting device is a fastening screw 9 .

[0034] When in use, the oil discharge method of the common oil discharge valve and cylindrical oil discharge valve is the same as the previous embodiment. For the quadrangular oil discharge valve, first loosen the fastening screw 9 and slide the jaw stopper 3 along the chute 7 to After the proper position, the fastening screw 9 is tightened so that the position of the jaw stopper 3 is fixed, and now the jaw stopper 3 can clamp the oil discharge valve, and then the oil can be drained.

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PUM

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Abstract

The invention discloses a tool special for transformer bushing oil drain valve maintenance. The tool structurally comprises a handle. One end of the handle is provided with an adjustable spanner, the upper surface of the other end of the handle is provided with a four-corner spanner with the adjustable size, the lower surface of the other end of the handle is provided with a circular sleeve with the adjustable size, and the four-corner spanner comprises an upper jaw check block, a lower jaw check block, a left jaw check block and a right jaw check block. The tool special for transformer bushing oil drain valve maintenance can achieve oil drain of various transformer bushing oil drain valves, and brings convenience to transformer maintenance.

Description

technical field [0001] The invention belongs to the field of installation of electric equipment accessories in the electric power industry, in particular to a special tool for inspection and maintenance of transformer bushing oil drain valves. Background technique [0002] At present, the more common transformer bushing oil drain valves are of different sizes, and a variety of different wrenches need to be used for maintenance, and there are some less common transformer bushing oil drain valves that require special types of tools to solve their oil drain Question, the less common transformer bushing oil drain valves are mainly square and cylindrical. The coexistence of various forms of transformer bushing oil drain valve mentioned above makes maintenance personnel unable to accurately prepare transformer bushing oil drain tools when preparing tools and tools, which brings certain troubles to transformer maintenance. If the transformer bushing cannot be adjusted correctly Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/56B25B13/50
CPCB25B13/06B25B13/12B25B13/16B25B13/50
Inventor 康庆奎李永生王琳王秉春刘荣泉夏立军杨春梅赵建华
Owner STATE GRID CORP OF CHINA