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Manual unlocking device of sliding door of urban rail vehicle

A manual unlocking and urban rail technology, applied in the field of urban rail vehicle parts, can solve the problems of manual unlocking devices not being able to locate the unlocking torque, potential safety hazards, and low reliability, and achieve good application prospects, reliable positioning, and simple and reliable actions Effect

Active Publication Date: 2014-04-16
NANJING KANGNI MECHANICAL & ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is to overcome the existing manual unlocking device, adopt the bead positioning, and the bead will wear the surface of the V-shaped notch on the outer surface of the cable reel, which will cause the manual unlocking device to fail to locate or the unlocking torque will increase or even Stuck status, low reliability, and potential safety hazards

Method used

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  • Manual unlocking device of sliding door of urban rail vehicle
  • Manual unlocking device of sliding door of urban rail vehicle
  • Manual unlocking device of sliding door of urban rail vehicle

Examples

Experimental program
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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Such as figure 1 As shown, a manual unlocking device for a sliding door of an urban rail vehicle includes an unlocking bracket 1, a rotating shaft 2, a handle 3, a torsion spring 5, a retaining hook 6, an unlocking disc 7 and a cable reel 9, and the rotating shaft 2 and the handle 3 are connected as one , the rotating shaft 2 is sleeved with a first shaft sleeve 4, the first shaft sleeve 4 is installed at the center of the unlocking bracket 1, the rotating shaft 2 extends out of the unlocking bracket 1 through the first shaft sleeve 4, and passes through the second shaft sleeve 10 and The unlocking discs 7 are connected to drive the unlocking discs 7 to rotate;

[0020] A protrusion 11 is provided at the center of the unlocking disc 7, and the pulling disc 9 is sleeved on the protrusion 11 through a third bushing 17, and the third bushing 17 is located on the o...

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Abstract

The invention discloses a manual unlocking device of a sliding door of an urban rail vehicle. When a cable pulling disc is rotated to an unlocking position, a stop hook falls in an arc-shaped groove in the cable pulling disc under the effect of torsional springs to be located; when resetting is carried out, a handle is reversely rotated, the diameter of a locating hole in the cable pulling disc is larger than the diameter of a cylindrical locating pin of an unlocking disc, differential motion exists between forward rotation of the unlocking disc and the cable pulling disc and between reversing rotation of the unlocking disc and the cable pulling disc, the differential motion is adopted to enable a slope arranged on the cable pulling disc to support the stop hook to reset a door system locking device, the reliable location is achieved, operation is conveniently achieved, unlocking moment is small, and other assistance movements are avoided; the handle is only required to be rotated directly to achieve manual unlocking and resetting, the unlocking movement is simple and reliable, the structure is novel, the design is ingenious, and the good application prospect is achieved.

Description

technical field [0001] The invention relates to the technical field of urban rail vehicle components, in particular to a manual unlocking device for a sliding door of an urban rail vehicle. Background technique [0002] With the rapid development of urban scale, urban rail transit can facilitate people's travel and has been widely used. At present, the sliding doors of urban rail vehicles are equipped with manual unlocking devices, so that in an emergency, the sliding doors can be opened manually. Some manual unlocking devices use touch beads for positioning, that is, use the interaction between the steel ball and the V-shaped notch on the outer surface of the cable reel to realize unlocking and reset. , will cause the manual unlocking device to fail to locate or the unlocking torque will increase or even get stuck, that is, in an emergency state, the sliding door cannot be opened manually, or after the emergency state is lifted, the sliding door cannot be reset, the reliabi...

Claims

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Application Information

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IPC IPC(8): E05B83/40E05B79/22
Inventor 曾世文戴祖信顾孝青
Owner NANJING KANGNI MECHANICAL & ELECTRICAL
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