Seat rotation limiting mechanism, seat and engineering vehicle

By designing a rotary limit mechanism on the seat of the high-lifting fire truck, the locking and unlocking functions of the limit keys are used to solve the technical problems of seat rotation and locking, and the flexible rotation and locking of the seat are achieved, improving operation convenience and safety.

CN111546955BActive Publication Date: 2025-03-28HUNAN SHUANGDA ELECTROMECHANICAL CO LTD
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Patent Information

Application Number
CN202010153584.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-03-06
Publication Date
2025-03-28
Estimated Expiration
2040-03-06

AI Technical Summary

Technical Problem

The seat of a fire truck lifting needs to be rotated at an angle and locked so that the user can change the field of view and control the lifting and deployment angles of the arm frame, but this function is difficult to achieve in the prior art.

Method used

A rotational limiting mechanism for a seat is provided, including a rotating member, a support member and an actuating member. The second limit key and the first limit key are locked or unlocked by the actuator, so that the rotating member is controlled to rotate or stationary with respect to the support, thereby achieving the rotation limit of the seat.

Benefits of technology

It realizes flexible rotation and locking of the seat, simplifies operation, and improves user's operation convenience and safety.

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Abstract

On the one hand, an embodiment of the present application provides a rotation limit mechanism of a seat, and the rotation limit mechanism includes a rotating member, a support member and an operating member. The support member is pivotally connected to the rotating member. A plurality of first limit keys are formed on the support member. The plurality of first limit keys are arranged at intervals along the rotation direction of the rotating member. The operating member is pivotally connected to the rotating member. A second limit key is formed on the operating member. The operating member can rotate relative to the rotating member so that the second limit key and the first limit key are locked or unlocked. The second limit key and the first limit key are locked or unlocked by the operating member, thereby controlling the rotating member to rotate or remain stationary relative to the support member, which is easy to operate. On the other hand, an embodiment of the present application provides a seat, including the above-mentioned rotation limit mechanism and a seat frame. The seat frame is connected to the rotating member, and the seat frame can rotate synchronously with the rotating member. On the other hand, an embodiment of the present application also provides an engineering vehicle, which includes the above-mentioned seat, chassis, turntable and cantilever.
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