A concrete mixer truck capable of automatic deceleration and including an anti-involvement device

Abstract

The invention provides a cement mixer capable of being automatically decelerated and containing an anti-drawing-in device. The cement mixer comprises a driving cab, a cement mixer frame, an air reservoir, a brake chamber arranged on a rear axle, an automatic brake device, the anti-drawing-in device, a control circuit board and an infrared sensor, wherein the automatic brake device comprises a first pneumatic magnetic exchange valve and a second pneumatic magnetic exchange valve; the anti-drawing-in device comprises a fixing circular pipe, a third pneumatic magnetic exchange valve, a first pushing air cylinder, a limiting rod and a limiting board; the infrared sensor is arranged on two sides of the cement mixer frame; and the control circuit board is correspondingly connected with the infrared sensor, the first pneumatic magnetic exchange valve, the second pneumatic magnetic exchange valve and the third pneumatic magnetic exchange valve. When two sides of a cement mixer body are very close to a passenger, automatic deceleration of the cement mixer disclosed by the invention can be realized through an automatic brake; and besides, the anti-drawing-in device mounted on two sides of the cement mixer frame is automatically opened, so that the situation that after the passenger is knocked down by the cement mixer body, the passenger is drawn in the bottom of the cement mixer from the front or the side of rear wheels of the cement mixer body is avoided.

Description

technical field [0001] The invention relates to a concrete mixer truck capable of automatic deceleration and including an anti-involvement device. Background technique [0002] In recent years, due to the regulation and control of my country's national economy, the real estate industry has developed rapidly, which eventually led to the planning of shopping malls or residential quarters in both first-tier, second-tier and third-tier cities. Whether it is to build a shopping mall or a commercial house, a large amount of concrete is required. Due to the limitation of the construction area and the convenience of centralized transportation of concrete, the concrete used in the construction process is generally transported to the destination by a concrete mixer truck from a special concrete mixing station. Because many shopping malls or commercial houses are in densely populated areas, concrete mixer trucks often shuttle on crowded roads during transportation. Because the concrete...

AI Technical Summary

Problems solved by technology

Whether it is to build a shopping mall or a commercial house, a large amount of concrete is required. Due to the limitation of the construction area and the convenience of centralized transportation of concrete, the concrete used in the construction process is generally transported to the destination by a concrete mixer truck from a special concrete mixing station. Because many shopping malls or commercial houses are in densely populated areas, concrete mixer trucks often shuttle on crowded roads during transportation. Because the concrete transportation volume of a concrete mixer truck is limited, resulting in During pouring, multiple concrete mixer trucks are required to repeatedly transport concrete back and forth. Concrete mixer trucks shuttle back and forth on crowded roads, which invisibly increases the risk of driving. At the same time, due to the existence of driving blind spots, when the concrete mixer trucks turn, it will cause scraping It often happens that pedestrians or pedestrians are involved in the bottom of the car

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