Caster seat for adjusting ground clearance

Abstract

The invention discloses a caster seat for adjusting a ground clearance. The caster seat for adjusting the ground clearance comprises a rotating handle, a rotating groove, a screw seat, a screw rod, a wheel axle and a rubber wheel, wherein the rotating handle is connected with the rotating groove through a pin shaft; the rotating groove is connected with the screw rod through a pin shaft; the screw rod is a cylinder; the screw rod is connected with the screw seat through an external thread; the outer wall of the screw seat is welded on a seat sleeve; the outer wall of the seat sleeve is provided with a guide sleeve; the upper end of the guide sleeve is welded with a cover plate I; the lower end of the guide sleeve is welded with an L-shaped support; a fixed seat is welded on the side wall of the guide sleeve; the L-shaped support is welded together with the wheel axle; and the rubber wheel is fixed on the wheel axle through a nut and a cover plate. According to the invention, through tightening the rotating handle, the cylindrical screw rod is driven by the rotating handle to rotate, the rotation motion of the screw rod is converted into up-and-down motion and the distance between the bottom end of the screw rod and the seat sleeve is vertically adjusted so that the clearance between a trolley and the ground is adjusted. Therefore, the caster seat for adjusting the ground clearance has the advantages that the structure of the caster seat is simple, the operation of the caster seat is convenient, the caster seat realizes a guiding function, the efficiency is increased, labor is saved, the safety factor of the caster seat is high, and the caster seat also realizes wide practicability.

Description

technical field [0001] The invention belongs to the technical field of a road sweeper suction trolley, and in particular relates to a caster seat for adjusting the ground clearance. Background technique [0002] As one of the sanitation equipment, the road sweeper is a new type of efficient cleaning equipment that integrates road cleaning, garbage recycling and transportation. The road sweeper can not only clean garbage, but also dedust and purify the air medium on the road, which not only ensures the beauty of the road, maintains the sanitation of the environment, maintains the good working condition of the road surface, but also reduces and prevents traffic accidents occurrence and further prolong the service life of the pavement. [0003] The bottom of the road sweeper is equipped with a suction trolley. The trolley is supported by a small frame welded by section steel and steel plate. It is fixed on the bottom of the road sweeper through a fixing seat. The ground cleara...

AI Technical Summary

Problems solved by technology

Commonly used height adjustment mechanisms include: threaded height adjustment mechanisms, plug-in fastening height adjustment mechanisms, pneumatic height adjustment mechanisms, and hydraulic height adjustment mechanisms. These structures mainly have two problems: one is from low to high. Step adjustment cannot be realized during adjustment; second, after adjusting to the maximum height, it is necessary to adjust the height to the lowest point and then re-adjust the height, which cannot directly realize the cycle adjustment of height change; third, the structure is relatively complicated, and the amount of machining is large. High requirements, high production costs, inconvenient operation, and low efficiency in adjusting the ground clearance of the trolley

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