Abstract: A pitching arrangement for a model helicopter includes a securing base, a plurality of servers supported by the securing base, a main connecting shaft linked to the servers, a supporting ring, a control device operatively provided between the servers and axially mounted to the main connecting shaft, and a plurality of connecting rods connecting the servers and the control device through the main connecting shaft, wherein the supporting ring is mounted on the main connecting shaft, wherein the connecting rods are connected to the supporting ring of the main connecting shaft.

Abstract: A pitching arrangement for a model helicopter, comprising a securing base, a plurality of servers supported by the securing base, a main connecting shaft communicated to the servers, and has a supporting ring, a control device operatively provided between the servers, and is axially mounted to the main connecting shaft, and a plurality of connecting rods connecting the servers and the control device through the main connecting shaft, wherein the supporting ring is mounted on the main connecting shaft, wherein the connecting rods are connected to the supporting ring of the main connecting shaft.

Abstract: A transmission mechanism for a remote-controlled model simulation helicopter includes a body frame which is orderly provided with a main rotor holder, a main rotor shaft, and a main reduction gear provided with a plurality of washout holes which are evenly distributed about an axis thereof. The body frame is provided with a swashplate module and a servo arrangement at a middle portion thereof. Since the main reduction gear is provided with washout holes and the introduction of internally installed swashplate module together with taking advantage of self structural features of the body frame, it enables the elimination of the commonly used swashplate guide board. The servo devices are provided in a same plane within the body frame and provide a triangular configuration, so that the structure is reasonable and the transmittance of motion is stable.

Abstract: Disclosed in the invention is a parameter adjusting device of a transmitter of a remote control helicopter model and the invention aims to solve the technical problems of disassembling and assembling the parameter adjusting device at will, improving the flexibility of the parameter adjusting device and reducing the user's later upgrade cost. The technical solutions are adopted in the invention: a parameter adjusting device of the transmitter of the remote control helicopter-model comprises the transmitter and the parameter adjusting device arranged on the transmitter, wherein the parameter adjusting device is connected with the transmitter by a detachable structure. Compared with the prior technology, the parameter adjusting device is made into a detachable independent model, thus the user's later upgrade cost is reduced, the data exchange is performed between the parameter adjusting device and the transmitter via a connecting line, the structure is simple and the user playable property is improved.

Abstract: A transmission mechanism for a remote-controlled model simulation helicopter includes a body frame which is orderly provided with a main rotor holder, a main rotor shaft, and a main reduction gear provided with a plurality of washout holes which are evenly distributed about an axis thereof. The body frame is provided with a swashplate module and a servo arrangement at a middle portion thereof. Since the main reduction gear is provided with washout holes and the introduction of internally installed swashplate module together with taking advantage of self structural features of the body frame, it enables the elimination of the commonly used swashplate guide board. The servo devices are provided in a same plane within the body frame and provide a triangular configuration, so that the structure is reasonable and the transmittance of motion is stable.