Self-braking construction site trolley
A technology of automatic braking and trolley, which is applied in the field of trolleys, can solve problems such as complex design, and achieve the effects of light disassembly, construction cost saving, and economic cost saving
Active Publication Date: 2017-10-31
HARBIN ENG UNIV
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Problems solved by technology
Some automatic braking devices based on safety considerations are often complex in design and require the support of other auxiliary power devices. During the construction process, the environmental conditions are poor, and the auxiliary construction tools used by workers are often required to be simple, lightweight, durable
Method used
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Embodiment Construction
[0020] Combine below Figure 1-4 A specific embodiment of the present invention will be described in more detail with an example.
[0021] A construction site trolley capable of automatic braking, including a vehicle body and a braking device. The car body is a trolley for common construction sites, with wheels and supporting legs arranged at the bottom, and two handles at the end, the ends of which are bent. The braking device mainly includes a gear set and a lever transmission. The lever transmission device is mainly to add a steel hollow inner tube to the round tube of the ordinary trolley support leg, and slot the upper end of the outer tube so that the inner tube can be connected with the lever. The inner tube is directly inserted into the support round tube. In order to prevent the inner tube from slipping out of the support round tube, a bayonet pin is welded on the inner tube, and a slot is made in the middle of the outer tube to limit the movement of the bayonet pin...
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The invention provides an automatic braking trolley for a construction site. It includes an automatic braking mechanism composed of a circular gear, a lever and a push rod. The circular gear is fixedly installed on the wheel axle of the trolley. One end of the lever has straight teeth. The middle part of the lever is hinged at the bottom of the trolley and the straight tooth part Located above the circular gear, the other end of the lever is hinged to one end of the push rod. The push rod limit slideway is set on the support leg of the trolley, and the push rod is placed in the push rod limit slideway. The length of the push rod is equal to or greater than that of the trolley support the length of the legs. The present invention is improved on the basis of common construction site trolleys, and a simple automatic braking device is added to achieve the braking effect by using the gravity of the trolley and the load, which can meet the convenience and safety requirements of tools in the construction process.
Description
technical field [0001] The invention relates to a trolley, in particular to a construction site trolley which can be automatically braked. Background technique [0002] Construction site trolleys are a common means of human transportation in construction sites at home and abroad, and are often used to carry bricks, sandstone, concrete and other building materials. Due to the manual operation, workers may experience fatigue and other discomfort during transportation, resulting in improper parking and other misoperations on rough roads. In actual engineering, the construction site is usually not very smooth, and there are often ups and downs during transportation. In the road section, in order to avoid possible safety hazards due to worker misuse, it is necessary to install an automatic braking device on the trolley to ensure the stable parking of the trolley during use, and at the same time, ensure personal safety during the transportation of heavy objects. [0003] Commonly...
Claims
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IPC IPC(8): B62B5/04
Inventor 毛继泽敖士楷郭庆勇张帅符如旭王笑迪韩佳芮陈明辉
Owner HARBIN ENG UNIV