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Low-noise subway vehicle door pneumatic auxiliary lock

A pneumatically assisted, low-noise technology, applied in the direction of hydraulic/pneumatic locks, pneumatic/hydraulic circuits, etc., can solve problems such as large operating noises, and achieve low cost, simple structure, and good results

Pending Publication Date: 2022-02-25
CRRC NANJING PUZHEN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a low-noise subway car door pneumatic auxiliary lock, which can solve the problem of relatively large action noise when the pneumatic auxiliary lock bolt presses the door leaf lock, while ensuring the door seal. Effectively reduce noise while meeting safety requirements

Method used

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  • Low-noise subway vehicle door pneumatic auxiliary lock
  • Low-noise subway vehicle door pneumatic auxiliary lock

Examples

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Embodiment Construction

[0015] Embodiments of the present invention are explained below.

[0016] Such as figure 1 , figure 2 As shown, the low-noise subway car door pneumatic auxiliary lock in this embodiment includes two locking cylinders 11, 12 corresponding to the left and right doors respectively (in this example, only the mechanical part of the auxiliary lock 2 on the right door side is drawn), The lock tongue 5 driven by the lock cylinder 11 (the push rods of the lock cylinders 11, 12 drive the lock tongue 5 to move through the bearing shaft, so that the lock tongue 5 presses the lock 3 of the door leaf 4), and drives the lock cylinder 11 , Auxiliary lock solenoid valve 10 of 12 actions. The air outlet of the auxiliary lock solenoid valve 10 is respectively connected to the locking cylinders 11, 12 of the left and right car doors through an air circuit. The train air source supplies air to the locking cylinders 11 and 12 through the source switch solenoid valve 7, the filter pressure reduc...

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Abstract

The invention relates to a low-noise subway vehicle door pneumatic auxiliary lock which comprises a locking air cylinder, an auxiliary lock electromagnetic valve driving the locking air cylinder to act and a spring bolt driven by the locking air cylinder, a train air source is connected with the locking air cylinder through the electromagnetic valve, a throttling valve or a speed regulating valve is arranged on an air inlet air path of the auxiliary lock electromagnetic valve to adjust the air inflow of a locking air cylinder and reduce the action speed of the spring bolt so as to reduce noise. The speed regulating valve (throttling valve) is additionally arranged on the air inlet path, the air inlet amount is regulated through the speed regulating valve, the action of the air cylinder is slowed down after the air inlet amount is reduced, and then the action speed of the spring bolt of the auxiliary lock is reduced. After the action of the spring bolt is reduced, noise generated by impacting and pressing the door leaf lock catch is reduced, so that the working noise of the auxiliary lock is reduced, and the comfort level of passengers is improved. The noise reduction scheme is simple in structure, low in cost and good in effect.

Description

technical field [0001] The invention relates to a pneumatic auxiliary lock for a subway vehicle door, and belongs to the field of design of a door system of a subway vehicle interior equipment. Background technique [0002] In order to meet the high-speed operation of subway vehicles, especially the high-speed meeting requirements, a pneumatic auxiliary lock is added to the rear of the door leaf. Active locking function. It is used for auxiliary pressing after the door leaf is locked in place, so as to meet the reliable constraints of the door when the vehicle is running at high speed, overcome the deformation of the door leaf when passing cars or passing through the tunnel, ensure the sealing of the door when the subway vehicle is running at high speed, and improve the comfort of passengers. Pneumatic Secondary lock. [0003] The pneumatic auxiliary lock of the existing subway vehicle is driven by the cylinder, and resets itself after the air is cut off. Working principl...

Claims

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Application Information

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IPC IPC(8): E05B81/10E05B81/52
CPCE05B81/10E05B81/52
Inventor 郭海军章义黄莉莉刘舒嘉吴川
Owner CRRC NANJING PUZHEN CO LTD
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