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Opening enlarging device

An open end and support force generation technology, applied in packaging and other directions, can solve problems such as low efficiency and difficult operation, and achieve the effect of eliminating potential safety hazards and improving operation efficiency.

Inactive Publication Date: 2020-11-06
CRRC TANGSHAN CO LTD
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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 mouth opening device, aiming to solve the problems of difficult operation, low efficiency and potential safety hazards when manually opening the protective cover.

Method used

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Examples

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specific Embodiment approach

[0051] As a specific embodiment of the mouth support device provided by the present invention, the support force generating mechanism 1 also includes a tightening bolt, which is arranged on the rotating part 2, and the tightening bolt is used to connect the long axis end of the oval wheel 11 with the When the rotating part 2 touches, it tightens and positions the oval wheel 11, so that the two abutting ends 21 are kept separated. The tightening bolt constitutes a holding mechanism, which keeps the two abutting ends 21 separated, so that the protective sleeve 3 keeps an open state, and is convenient for taking and placing the cable 4 .

[0052] Specifically, the rotating member 2 is provided with a bolt hole that communicates with the side wall of the constraint groove 14 and is adapted to the tightening bolt. When the groove bottom of the groove 14 contacts the surface of the oval wheel 11, the oval wheel 11 is relatively fixed with the rotating part 2, and the state is mainta...

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Abstract

The invention provides an opening enlarging device, and belongs to the technical field of a D-series high-speed train maintenance tool. The opening enlarging device comprises a main body and an enlarging force generation mechanism, the main body comprises two rotating pieces, wherein one end of each rotating piece is in hinge joint, a supporting and connecting end is arranged on the rotating pieceand used for simultaneously contacting and tightly jacking up two opening ends of a protecting cover, the enlarging force generation mechanism is arranged on the main body and used for driving the rotating pieces to rotate around an own hinge joint end, thus, the two supporting and connecting ends can be separated, and an opening of the protecting cover is enlarged. The opening enlarging device provided by the invention can solve problems of difficulties in operations, low efficiency and existence of potential safety hazard caused when an enlarging operation for the protecting cover is executed artificially.

Description

technical field [0001] The invention belongs to the technical field of EMU maintenance tools, and more specifically relates to a mouth support device. Background technique [0002] There are multiple high-voltage cables installed on the roof of the standard EMU. In order to prevent excessive wear of the high-voltage cables during the operation of the train, it is necessary to remove the high-voltage cables from the protective sleeve many times during the commissioning and operation and maintenance stages of the standard EMU. Back into the protective case. The protective cover is fixed on the roof of the standard EMU. The outer part is a rubber protective cover, and the inner part is provided with a protective cover to ensure sufficient strength. When taking out the high-voltage cable, it is necessary to open the opening of the protective cover so that the width of the opening is greater than the wire diameter of the high-voltage cable. At present, the opening operation is ...

Claims

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Application Information

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IPC IPC(8): B65B43/54
CPCB65B43/54
Inventor 张健张连军张召星高栋梁夏宏程刘超军王阳朱峰石子铜祝金志田雨王晓婷韩月乔赵志强李吉
Owner CRRC TANGSHAN CO LTD
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