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Ladder stand device in elevator pit

A technology for elevator pits and climbing ladders, which is applied in the directions of ladders, transportation and packaging, construction, etc., can solve problems such as the inability to meet elevators, and achieve the effect of improving the safety of use.

Active Publication Date: 2020-12-04
SCHINDLER CHINA ELEVATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing fixed fixed ladder cannot meet the relevant regulations of the elevator industry.

Method used

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  • Ladder stand device in elevator pit
  • Ladder stand device in elevator pit
  • Ladder stand device in elevator pit

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Embodiment Construction

[0029] The technical solutions of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals refer to the same or similar parts. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention, and should not be construed as a limitation of the present invention.

[0030] Furthermore, in the following detailed description, for convenience of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. Obviously, however, one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagram form in order to simplify the drawings.

[0031] According to a gene...

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Abstract

The invention discloses a ladder stand device in an elevator pit. The ladder stand device comprises a ladder stand, a safety switch and a switch trigger piece, wherein the ladder stand is rotatably connected onto a fixed bracket in the elevator pit; the safety switch is mounted on an elevator shaft wall or the fixed bracket, and is connected on a safety control loop of an elevator in series; and the switch trigger piece is mounted on the ladder stand and can rotate along with the ladder stand. While the ladder stand is located on a safety storage position which is not intervened with a car anda counterweight of the elevator, the safety switch and the switch trigger piece are separated and are located on a closed position to permit the elevator to operate; while the ladder stand is rotatedto leave the safety storage position, the safety switch is driven by the switch trigger piece to an off position to cut off an elevator safety control loop and forbid operation of the elevator. Thus,a distance between the ladder stand and the elevator shaft wall and a landing door can be regulated by rotating the ladder stand; and moreover, the ladder stand device is safe in use.

Description

technical field [0001] The invention relates to an elevator pit climbing device. Background technique [0002] At present, the climbing ladder can only be fixedly installed at a predetermined position in the elevator pit, and the distance between the climbing ladder and the elevator shaft wall and the elevator shaft floor door cannot be adjusted. This will lead to two situations. The first situation is that it is difficult to ensure that the distance from the ladder to the elevator hoistway wall is not less than 200mm when the elevator shaft is small in size. The second situation is when the elevator shaft is large in size. As a result, the distance from the ladder to the door of the elevator shaft is greater than 800mm. However, according to the EN81-20 regulations of the elevator industry, the distance from the back of the ladder installed in the elevator pit to the elevator shaft wall must be no less than 200mm, and the distance to the door of the elevator shaft layer sh...

Claims

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Application Information

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IPC IPC(8): B66B5/00B66B7/00E06C9/08
CPCB66B5/0043B66B5/0087B66B7/00E06C9/08
Inventor 周双林王春博
Owner SCHINDLER CHINA ELEVATOR CO LTD
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