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Drive locking mechanism and protective device

A technology of locking mechanism and protective device, applied in the direction of transmission device, gear transmission device, building lock, etc., can solve the problems of loss of supporting function of the latch, poor mechanism stability, complicated operation, etc., to avoid unlocking problems, reliable performance, and manufacturing. simple effect

Pending Publication Date: 2019-11-19
CHINA URBAN CONSTR DESIGN & RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing locking mechanism is complex in structure, cumbersome in operation, and poor in stability, so it is not suitable for civil air defense facilities related to personal safety
In the process of encountering damage, the latch may be pushed back due to external force and lose its support

Method used

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  • Drive locking mechanism and protective device
  • Drive locking mechanism and protective device
  • Drive locking mechanism and protective device

Examples

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Embodiment Construction

[0020] Embodiments of the invention are described in detail below, but the invention can be practiced in many different ways as defined and covered by the claims.

[0021] The invention relates to a mechanism system of a worm screw and a worm reducer for protective doors (airtight) doors that may encounter strong shock waves or destructive effects such as civil defense protection, anti-explosion protection, safety protection, and vault protection. The system includes De Helix Worm Disc and Worm. Wherein, the worm disk is a rotating disk with a worm groove based on the Archimedes helix, and the worm is composed of a cylindrical worm and a tooth surface based on the Archimedes helix. The Archimedes helicoid is a ruled surface produced by spiraling with a straight line centered on the axis of the worm.

[0022] When working, the worm disk rotates, and the connecting rod moves through the cooperation between the worm groove on the worm disk and the worm. The movement of the worm...

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PUM

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Abstract

The invention relates to a drive locking mechanism and a protective device. The drive locking mechanism comprises a spiral disk and one or more than one worm; the spiral disk is engaged with the one or more than one worm; a spiral groove is formed in the end face of the spiral disk; the spiral groove is generated toward the periphery by taking a straight line perpendicular to the spiral disk in amanner of Archimedes spiral; and the tooth surface of the one or more than one worm is generated by taking the axis of the one or more than one worm as the center line in the manner of Archimedes spiral. The drive locking mechanism realizes a drive reducer large in single-stage ratio, small in component number, relatively small in size and compact in structure through the spiral disk and one or more than one worm, and is simple to manufacture, reliable in performance and low in maintenance cost; and under the self-locking action of the spiral disk and the one or more than one worm, more reliable locking can be realized, and the unlocking problem caused by the fact that an external force returns back is avoided.

Description

technical field [0001] The invention relates to a mechanical field, in particular to a transmission locking mechanism and a protection device. Background technique [0002] Wartime conventional weapon explosions and nuclear explosions, bomb terrorist attacks, flammable and explosive explosions, industrial dust explosions, man-made sabotage and other destructive effects, the protective door is the weak link in the protective structure. The locking mechanism is an important part of the protective equipment and is used for locking and unlocking. The existing locking mechanism is complex in structure, cumbersome in operation and poor in stability, so it is not suitable for civil air defense facilities related to personal safety. In the process of encountering damage, the latch may be pushed back due to external force and lose its supporting function. Contents of the invention [0003] The object of the present invention is to provide a transmission locking mechanism and a pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/16E05B15/00
CPCF16H1/16E05B15/00E05B65/0075E05C9/063E05C9/14E05C9/1833E05C9/1875
Inventor 徐宇宾郑子芃王宝良
Owner CHINA URBAN CONSTR DESIGN & RES INST CO LTD
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