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Lead screw elevator

A screw and elevator technology, applied in the field of elevators, can solve the problems of endangering the safety of passengers or cargo, immediate paralysis, elevator falling, etc., to achieve the effect of enhancing the level of safety and ensuring safety

Inactive Publication Date: 2015-08-26
NINGBO YONGLIANG ELEVATOR TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the screw elevator adopts a single-wire mother structure, that is, there is only one wire mother. When the wire mother is broken or damaged, the elevator has the risk of falling or immediately paralyzing, endangering the safety of passengers or cargo.

Method used

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below, obviously, the described embodiments are only some of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] Please also see figure 1 , figure 2 with image 3 ,in figure 1 It is a schematic diagram of the side structure of an embodiment of the screw elevator of the present invention, figure 2 It is a top view of an embodiment of the screw elevator of the present invention, image 3 It is a sectional view of the positional relationship between the lead screw elevator fuse nut and the lead screw in the present invention. The lead screw elevator 100 comprises a car 1, a lifting device 2, a fuse nut 3, a brake 4 and a back...

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Abstract

The invention provides a lead screw elevator. The elevator comprises an elevator car and a lifting device, wherein the lifting device comprises a motor, a nut and a lead screw; the motor comprises a revolving shaft; the revolving shaft comprises an axial through hole; the nut is fixed in the axial through hole; a perforative axial threaded hole is arranged in the nut; an external thread is arranged on the outer wall of the lead screw; the axial threaded hole of the nut is matched and meshed with the external thread of the lead screw; the lead screw penetrates through the axial through hole; the elevator comprises a fuse nut as well; the fuse nut is fixedly and coaxially connected with the revolving shaft; the fuse nut comprises a perforative axial threaded hole; the fuse nut and the nut all comprise internal threads; the inner diameter of the internal thread of the fuse nut is smaller than the inner diameter of the internal thread of the nut and is smaller than the outer diameter of the external thread of the lead screw. Compared with the prior art, the lead screw elevator guarantees the safety of passengers or cargo in the elevator car and improves the safety standard of the lead screw elevator by adding the fuse nut.

Description

technical field [0001] The invention relates to an elevator, in particular to a lead screw elevator. Background technique [0002] With the rapid development of the economy and the continuous deepening of the urbanization process, the number of high-rise buildings continues to increase, and the demand for elevators is also increasing. As a special transportation equipment, vertical running elevators are closely related to the safety of passengers. [0003] As a kind of elevator, the screw elevator includes car, screw, nut and motor. The threads of the screw nut and the screw rod are matched and engaged, and the motor drives the screw nut to rotate on the screw rod, thereby generating a force along the axial direction of the screw rod and driving the car to move along the axial direction of the screw rod. [0004] At present, the lead screw elevators all adopt a single-screw structure, that is, there is only one screw nut. When the screw nut is broken or damaged, the elevato...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B9/02B66B11/04B66B5/02
CPCB66B9/025B66B5/02B66B11/0446
Inventor 郭永平李性慈
Owner NINGBO YONGLIANG ELEVATOR TECH DEV CO LTD
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