Passive locking device for urban rail train door system

An urban rail and locking device technology, applied in door/window fittings, wing leaf operating mechanisms, buildings, etc., can solve the problems of low reliability, high cost, complex structure, etc., and achieve high reliability and low production cost. , the effect of simplifying the structure

Active Publication Date: 2015-04-22
NANJING KANGNI MECHANICAL & ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is the locking device of the existing urban rail train door system, including two kinds of passive full-range locking device and passive screw locking device, and the structure is relatively complicated, and the safety and reliability are low. high cost problem

Method used

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  • Passive locking device for urban rail train door system
  • Passive locking device for urban rail train door system
  • Passive locking device for urban rail train door system

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Embodiment Construction

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

[0019] like Figure 1 to Figure 4 As shown, a passive locking device for urban rail train door system, including screw rod 1, nut pin assembly 2, support slideway 3, position adjustment gasket 4, locking block 5, transmission fork assembly 6 and torsion spring 7, the screw rod 1 is installed on the base of the door system carrying the drive mechanism, the nut pin assembly 2 includes a nut 201 sleeved on the screw rod 1, a rolling pin 202 fixed on the outer wall of the nut 201 , the screw transmission pair is formed between the nut 201 and the screw mandrel 1, the nut 201 is a plastic nut, which has a certain buffering effect with the screw mandrel 1, and the use is delayed. Moreover, the plastic nut of the present invention has a high degree of firmness and will not Easy to break, the rolling pin 202 keeps in contact with the support slideway 3 located on the side of ...

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Abstract

The invention discloses a passive locking device for an urban rail train door system. The passive locking device comprises a screw rod, a nut pin assembly, a supporting sliding channel, a locking block and transmission shifting fork assemblies. The screw rod is mounted on a door system base for bearing a driving mechanism, the nut pin assembly comprises a nut and a rolling pin, and the nut and the screw rod form a screw drive pair. The rolling pin is kept in contact with the supporting sliding channel placed in one side of the screw rod, and the transmission shifting fork assemblies are arranged on the two sides of the nut. The axial movement of the nut on the screw rod is transmitted to a door leaf through the transmission shifting fork assemblies, and the opening or closing action of the door leaf is achieved. The locking block is arranged at the tail end of the supporting sliding channel, a groove is formed in the locking block, and the groove is used for clamping the rolling pin when the closing action of the door leaf is conducted in place. The passive locking device for the urban rail train door system simplifies the structure of the system, is simple in structure and low in manufacturing cost, the locking block is an easily-damaged part and is convenient to replace and high in reliability, and thus a good application prospect is achieved.

Description

technical field [0001] The invention relates to the technical field of urban rail transit, in particular to a passive locking device for an urban rail train door system. Background technique [0002] The door system locking devices of urban rail trains include passive full-range locking devices and passive screw locking devices. The former is a one-way clutch using a special rectangular section spring, and the latter uses a variable lead and an adaptive mechanism. Realize locking, but, the locking device structure of both is all more complicated, and there is following problem, [0003] (1) The passive full-range locking device realizes the locking of the transmission between the motor and the screw rod, and does not directly lock the door leaf, so the safety and reliability are low; [0004] (2) The lead of the passive screw locking device is changed on the screw. The screw is not easy to process, and the cost of replacement after the locking section is worn is relatively ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05F15/652
Inventor 徐松南缪秀祥
Owner NANJING KANGNI MECHANICAL & ELECTRICAL
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