Trackless door with pedrail

Abstract

The invention discloses a apron wheel trackless gate, which comprises the following parts: frame head, door frame which connects in order, drive device which installs in the frame head, ground-engaging wheel which installs at the bottom of the frame head, walking wheel which installs on two sides of the bottom of door frame, two strips of ring form walking apron wheel which is covered on two sides of ground-engaging wheel. The invention improves the linearity in trackless gate moving track direction, which extends the life time of the trackless gate.

Description

technical field [0001] The invention relates to a retractable door, in particular to a crawler trackless door installed in a spacious entrance and exit. Background technique [0002] At present, the so-called trackless electric telescopic doors on the market are essentially monorail electric telescopic doors. Since the monorail plays a navigation role when in use, the current electric telescopic doors have not fundamentally eliminated the guide rails. The use of track navigation has the following defects: whether it is a single-track or double-track structure, it not only increases the cost of raw materials and processing costs of the product, but also increases the cost of transportation and installation; A series of trivial tasks such as measuring, digging trenches, installing guide rails, and leveling the ground not only waste manpower and material resources, but also cause a lot of inconvenience to the normal entry and exit of vehicles and pedestrians; moreover, the fric...

AI Technical Summary

Problems solved by technology

The use of track navigation has the following defects: whether it is a single-track or double-track structure, it not only increases the cost of raw materials and processing costs of the product, but also increases the cost of transportation and installation; A series of trivial tasks such as measuring, digging trenches, installing guide rails, and leveling the ground not only waste manpower and material resources, but also cause a lot of inconvenience to the normal entry and exit of vehicles and pedestrians; moreover, the friction of the guide rails affects the reliability of the product and service life, but also caused noise pollution to the environment

Although some manufacturers have developed an electric telescopic door that truly bans the guide rails, it has not been generally recognized by the market due to defects such as poor reliability and unstable use.

The driving mechanism of the traditional trackless electric telescopic door is to drive the shaft of the telescopic door independently by two motors, which cannot realize the synchronous operation of the two motors, and it is difficult to precisely control the running direction of the telescopic door. With the continuous development of science and technology and product It is an important topic in the field of electric door technology to realize the real trackless of the existing electric telescopic door.

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