Safe fire-fighting truck side turning door with opening degree capable of reaching 90 degrees

Abstract

The invention relates to the technical field of fire-fighting truck side turning doors, in particular to a safe fire-fighting truck side turning door with the opening degree capable of reaching 90 degrees. The safe fire-fighting truck side turning door structurally comprises a side turning door body, a rotating plate assembly enabling the side turning door body to vertically turn over, a driving mechanism and a locking mechanism; the driving mechanism is arranged on the upper part in a box, and the rotating plate assembly comprises a rotating plate and a sliding groove; the rotating plate comprises an upper supporting point, a lower supporting point and a rotating supporting point; the rotating supporting point is fixed to a rotating shaft of the box, and the upper supporting point is connected with the driving mechanism; and the lower supporting point is located in the sliding groove and can slide in the sliding groove, and the sliding groove is fixed to the side turning door body. The side turning door is opened and closed through the rotating plate assembly, the driving mechanism is designed to be in an internally hidden type, thus occupation of a door hole space is reduced, theopening angle can reach 90 degrees, the structure is simple, safe and reliable, and the safe fire-fighting truck side turning door is not opened naturally.

Description

technical field [0001] The invention relates to the technical field of fire engine side flap doors, in particular to a fire engine side flap door which is safe and can open up to 90 degrees. Background technique [0002] In the actual design of equipment fire trucks, if you encounter heavier equipment such as mobile pumps, mobile guns, etc., it is usually necessary to use a large forklift for auxiliary transportation, and the side-turning doors of the traditional structure are often unable to meet large-scale equipment due to insufficient opening. The forklift enters the fire truck box through the side overturn door to load and unload equipment. In order to solve this problem, most of the prior art uses hydraulic cylinders to push upwards to open the side-turning door, that is, the fixing device of the hydraulic cylinder is fixed below the rotation center of the side-turning door, and the hydraulic cylinder is lifted from bottom to top, so that the entire hydraulic cylinder ...

AI Technical Summary

Problems solved by technology

[0002] In the actual design of equipment fire trucks, if you encounter heavy equipment such as mobile pumps, mobile cannons, etc., you usually need to use a large forklift for auxiliary transportation, and the side-turning doors of the traditional structure are often unable to meet large-scale equipment due to insufficient opening. The forklift enters the fire truck box through the side flap door for loading and unloading of equipment

In order to solve this problem, most of the prior art uses hydraulic cylinders to push upward to open the side flap door, that is, the fixing device of the hydraulic cylinder is fixed below the rotation center of the side flap door, and the hydraulic cylinder pushes up from bottom to top, so that the entire hydraulic cylinder The fixing device including the hydraulic cylinder occupies the space of the door opening. Although this method can meet the requirements of the opening of the side-turning door, the installation and fixing of the hydraulic cylinder needs to occupy a particularly large horizontal space of the door opening. If you encounter a wide equipment ( Similar to the width of the side-turning door, such as a fire monitor), it is often impossible to put it in, and it will increase the risk of collision with the hydraulic cylinder; moreover, to meet the requirements of the side-turning door opening, the push rod of the hydraulic cylinder needs to be very long. Long or require a lot of thrust, so the hydraulic push rod requires high strength and high cost

In addition, because fire trucks (especially large-scale equipment fire trucks) will bump when driving on a rescue site with poor road conditions (non-independent suspension), it is often prone to failures such as check valve failure, hydraulic cylinder or hydraulic pipe pressure relief, etc. , resulting in the potential safety hazard that the side-turning door will open outwards due to its own gravity

Furthermore, when the side flap door is opened at present, the manual emergency support limit structure is relatively complicated and unsafe

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