Double-chain window opener convenient to maintain and window
The double-chain window opener convenient to maintain comprises a shell, the shell is composed of a lower box body, an upper cover plate and two end covers, the upper cover plate covers an opening in the upper portion of the lower box body, the two end covers are arranged at openings in the two ends...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The double-chain window opener convenient to maintain comprises a shell, the shell is composed of a lower box body, an upper cover plate and two end covers, the upper cover plate covers an opening in the upper portion of the lower box body, the two end covers are arranged at openings in the two ends of the lower box body respectively, first sliding grooves are formed in the two sides of the opening of the lower box body, and the two ends of the lower box body are provided with second sliding grooves. Second sliding grooves are formed in the two sides of the upper cover plate, and the first sliding grooves are connected with the second sliding grooves in a matched mode. The transmission assembly comprises a left transmission mechanism and a right transmission mechanism which are the same in structure, each of the left transmission mechanism and the right transmission mechanism comprises a gear set and a chain, each gear set is in transmission connection with one end of the corresponding chain, the other end of |
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