Automatic opening and closing device for rail transit

Abstract

The invention relates to the technical field of rail transit, and discloses an automatic opening and closing device for rail transit. The automatic opening and closing device comprises a fixing plate,the bottom of the fixing plate is fixedly connected with an inspection column, the top of the inspection column is movably arranged with a quick-acting claw in a clamped mode, the top of the fixing plate is fixedly connected with a positioning disc, the top of the fixing plate is provided with annular sleeves, the number of the annular sleeves is six, the parts between every two adjacent annularsleeves are fixedly connected through connecting belts, the annular sleeves are positioned inside the positioning disc, positioning holes are formed in the left sides of the annular sleeves, and a limiting plate is movably clamped on the right side of the upper surface of the fixing plate. According to the automatic opening and closing device for the rail transit, the positions of the annular sleeves are limited by a positioning push rod and the connecting belts, so that the automatic opening and closing device facilitates the six annular sleeves correspondence by a user to form a whole, the positioning push rod is pushed by the user and the six annular sleeves can be installed and fixed at the same time through an adjusting handle, so that the convenience of installing a gear pin plate bythe user is improved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to an automatic switch device for rail transit. Background technique [0002] The automatic switch device operates with random parts in the switch machine, and can automatically complete the switch function. With the conversion of the switch, it can correctly connect and disconnect the motor circuit and the display circuit. The switch machine automatic switch is an integral structure. , can be disassembled independently, it cooperates with the indicating locking lever, and uses the on and off of the contact to reflect the position of the switch rail. The contact ring and static contact are made of beryllium bronze to improve the electrical conductivity and wear resistance. Long service life, the small shaft is connected with a spline shaft and the bracket to avoid wiggling and increase the torsional strength. [0003] The existing switch machine needs to fix the position of th...

AI Technical Summary

Problems solved by technology

[0003] The existing switch machine needs to fix the position of the retaining pin plate before operation. Due to the large number of retaining pin plates, the user needs to fix their positions one by one. The operation process is too cumbersome to make it form a It is organically integrated and fixed as a whole. At the same time, the existing fixing device is not easy to control the fixed position, and then it is easy to cause the fixing to be loose, the connecting pin to come out and the contact is not sensitive, and the fixing is tight. It is easy to cause the pin plate to be on the contact seat plane The phenomenon of jamming occurs on the upper surface, and then the moving contact of the switch cannot be opened, or the contact of one side of the moving contact is too deep, and the other side of the contact is too shallow. Therefore, we propose an automatic switch device for rail transit

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