No matter what kind of concrete mixer, the working principle is the same, but there are slight differences in some places. According to the analysis of a large number of accidents that have happened in the past, the concrete mixer is easy to cause accidents in the following five parts and links during the operation:

1.搅拌机的搅拌漏斗部位

1. Mixing funnel of mixer

每年都会发生多起事故。例如当搅拌机搅拌料斗发生故障时，操作人员需要清除料斗内的混凝土，如果这时有人误操作机械，清理的人员会受到伤害;当搅拌装置发生故障时，维修人员在料斗内修理搅拌装置，当另一个人开始测试是否修好时，维修人员会受到伤害。

There are many accidents every year. For example, when the mixer hopper fails, the operator needs to clear the concrete in the hopper. If someone mistakenly operates the machine, the cleaning personnel will be injured; when the mixing device fails, the maintenance personnel repair the mixing device in the hopper, and when another person starts to test whether it is repaired, the maintenance personnel will be injured.

2.侧翻

2. Rollover

当混凝土搅拌机展开时，由四个支腿支撑整个搅拌机的重和正在工作的混凝土搅拌机量，如果建筑工地不平实，搅拌机支腿受力不均，就会侧翻。

When the concrete mixer is deployed, the weight of the whole mixer and the amount of concrete mixer in operation are supported by four legs. If the construction site is not smooth and the force on the legs of the mixer is uneven, it will roll over.
                

3.搅拌机在收车时容易发生倾覆

3. The mixer is prone to overturn when the vehicle is closed

曾经发生多起由于误操作产生的搅拌机倾覆事故，当完成浇筑任务时，操作工人急于收工，在没有收回布料杆时，开始收回支腿，造成翻车事故。

There have been many accidents of mixer overturning due to misoperation. When the pouring task is completed, the operators are eager to stop work and start to take back the outrigger when the boom is not recovered, resulting in rollover accident.

4.触电

4. Electric shock

与吊车触电事故类似。由于混凝土搅拌机在布料作业时，布料杆需要举高作业，臂架容易靠近施工现场附近的高压电线，造成触电事故。

It is similar to the electric shock accident of crane. The boom is easy to be close to the high-voltage wire near the construction site, resulting in electric shock accident.

5.布料作业

5. Cloth work

布料作业时，混凝土搅拌机操作工人与布料浇筑作业的建筑工人配合协同不好，如果双方违反操作规程，容易造成事故。

When placing concrete, the cooperation between the concrete mixer operators and the construction workers for placing concrete is not good. If both sides violate the operation rules, it is easy to cause accidents.