Safety speed reducing device of inclined elevator

Abstract

The invention discloses a safety speed reducing device of an inclined elevator. The inclined elevator comprises a car body; the safety speed reducing device comprises a parachute box fixed at the middle part of the side, facing the upward moving direction of a pair of inclined guide rails, of the car body, a box door opening mechanism arranged in a parachute box cavity and hinged to a box door, a set of springs positioned in the parachute box cavity and supported on the cavity wall of the side, opposite to a cavity opening, of the parachute box cavity by one ends and supported on the box door opening mechanism by the other ends, a locking rod control mechanism fixed on the cavity wall of the side, opposite to the cavity opening, of the parachute box cavity and corresponding to the box door opening mechanism, and a parachute arranged between the box door opening mechanism and the box door in a folding state; a parachute control rope of the parachute is wound on the cavity wall of the side, opposite to the cavity opening, of the parachute box cavity; and the cavity opening faces the upward moving direction of the pair of guide rails. The parachute can be smoothly released; the automatic immediate release of the parachute is guaranteed; the misoperation is prevented; and the management work intensity is relieved.

Description

technical field [0001] The invention belongs to the technical field of elevator safety facilities, and in particular relates to a safety deceleration device for an inclined elevator. Background technique [0002] The technical information on setting up the safety deceleration device on the vertical elevator can be seen in the published Chinese patent documents, such as "a kind of elevator with a parachute" recommended by the invention patent publication number CN105752803A and the invention patent publication number CN105621207A. "A special elevator car for a security-type community". The technical scheme of the former in these two patents is: be provided with parachute box on the car top, be provided with parachute in the parachute box, the width of hoistway is greater than the diameter of parachute, the bottom of parachute is fixed on the car outer top wall, parachute The switch is located in the car. The technical effect is as described in paragraph 0007 of its manual: ...

AI Technical Summary

Problems solved by technology

[0003] However, looking at the full text of the aforementioned CN105752803A specification, I have not seen the specific structure of the entire safety deceleration device including the parachute, such as how to open the parachute in time when the elevator fails, and how to reliably control the parachute in the standby state. In the box (the patent is called the parachute box), how the elevator controller sends a signal to the safety deceleration device at the moment the elevator falls, how to ensure that the parachute can quickly escape from the parachute box, etc.

In addition, CN105752803A seems to be inadvisable to set the switch for opening the parachute box in the car, because once the occupant unintentionally touches it, abnormal activation will occur, which will not only cause false alarm to the occupants, but also bring trouble to the elevator management

In addition, when the car falls out of control when the danger occurs, at least the following disadvantages exist in the manual operation of the switch: because the car falls usually without warning in an instant, it may have fallen before the occupant reacts. And because even if the occupant responds, there is a time difference between manually touching the switch, so it cannot be effective in the first time, and because the occupant is often in a state of high tension and panic during the elevator's descent, and will not immediately press the button. The action of moving the switch

[0004] In addition, since the aforementioned CN105752803A and CN105621207A are all aimed at vertically ascending and descending elevators, they are not instructive for oblique elevators, and CN1056210207A also has the aforementioned shortcomings of CN105728203A

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