Large-stroke handle with sector gear

Abstract

The invention provides a large-stroke handle with a sector gear. The large-stroke handle with the sector gear comprises the sector gear, an ejection ball assembly, a shifting fork with a rack, a panelshell and a holding handle. The sector gear integrally comprises a gear portion, a stop plate, a circular locating platform and a shaft section. The ejection ball assembly comprises a bearing piece,and an elastic ejection ball device is arranged on one diameter of a disc of the ejection ball assembly and abuts against the circular locating platform of the gear. A rack portion and a shifting forkis arranged on the shifting fork with the rack. A gear shaft hole is formed in the panel shell and eccentrically formed in one side of the shell wall, and the shaft section of the gear stretches outof the gear shaft hole. An ejection ball assembly clamping groove is formed in the panel shell, and the ejection ball assembly which is connected with the gear is arranged in the ejection ball assembly clamping groove in a clamped mode. A rack sliding groove is formed in the panel shell, the rack portion in the shifting fork with the rack is arranged in the rack sliding groove of the panel shell in a slidable mode and meshes with the gear portion, and the shifting fork stretches out of the panel shell. A square hole is formed in one end of the holding handle, the holding handle is inserted into a square platform of the shaft section of the gear in a fixed mode through the square hole, and the gear and the holding handle are fixed through screws. By the adoption of the large-stroke handle with the sector gear, the stroke of the shifting fork is greatly increased under the condition that the overall dimension of an existing handle is kept unchanged.

Description

technical field [0001] The invention relates to the technical field of building curtain walls, and provides a handle with a large stroke of a sector gear. Background technique [0002] In the field of building curtain walls, the use of opening fans is the most widely used. For the curtain wall of modern buildings, in order to pursue the maximum indoor permeability effect, the architects design the width and height of the opening fan to be larger and larger, and there are a lot of bumps or inoperability problems during the operation process. Extreme convective weather is very likely to occur in monsoon climate areas, and people are becoming more and more aware of the dangers of these extreme convective weather. Architects are in line with people's safety needs, and the level of defensive structures for curtain wall wind pressure is also increasing. high. Under the action of these two factors, the use of high-strength lock blocks and lock seats for opening fans has become wi...

AI Technical Summary

Problems solved by technology

However, if the shape of the panel is too large, the applicability with the window profile is relatively low, and it is often necessary to develop a special window profile; and the shape of the panel is too large, which affects the overall appearance of the opening fan

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