Climbing fire fighting truck and landing leg telescopic device and landing leg telescopic method thereof

By designing a leg telescopic device for a fire truck at the height, the leg system in the prior art is solved, and the problem of heavy structure, difficulty in extending out of work and lack of real-time monitoring of force conditions, stable expansion and real-time force monitoring of the leg are achieved, and the safety and efficiency of the work are improved.

CN119636648APending Publication Date: 2025-03-18TAIYUAN HEAVY IND
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Patent Information

Application Number
CN202411648398.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

The leg system of the existing high-rise fire truck has a heavy structure and is not easy to extend out of work in various positions. It lacks the function of real-time monitoring of stress conditions, which may cause the leg to be suspended and dangerous, affecting the safety and efficiency of operations.

Method used

A leg telescopic device for a fire truck for climbing a high is designed, including a leg box, a sliding sleeve structure, an oil cylinder and a pressure sensor. The combination of the sliding sleeve and an oil cylinder is used to achieve stable telescopic expansion and contraction of the legs, and the pressure sensor is used to monitor the force of the legs in real time.

Benefits of technology

Through weight reduction design and roller structure, the device achieves stable and smooth expansion of the legs, ensuring the reliability and safety of the device, and improving the safety and efficiency of the operation through real-time monitoring functions.

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Abstract

The invention discloses a climbing fire truck and a supporting leg telescopic device and method thereof. The supporting leg telescopic device for the climbing fire fighting truck comprises a supporting leg box arranged on a fire fighting truck frame, a first supporting leg sleeved with the supporting leg box in a sliding mode, a second supporting leg sleeved with the first supporting leg in a sliding mode, a first oil cylinder perpendicularly arranged at the free end of the second supporting leg, and a pressure sensor arranged between the first oil cylinder and the second supporting leg. A first support is fixed to one end of the supporting leg box, a second oil cylinder is fixed to the first support, and the second oil cylinder comprises a push rod connected to the first support and a cylinder barrel arranged on the outer side of the push rod in a sleeving mode. Through the effective weight reduction design and the installation structure, high smoothness, convenience and reliability are achieved, the stress of the supporting leg can be measured in real time by reading the numerical value of the pressure sensor in the use process, then it is confirmed that the first oil cylinder bears force correctly all the time and does not leave the ground, the actual use requirement can be better met, and the application range is wide. And the method has good practicability and adaptability.
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