Electric lifting device for skylight of passenger vehicle

Abstract

The invention relates to an electric lifting device for a skylight of a passenger vehicle. The electric lifting device comprises a base, a motor, a retarding mechanism connected with the motor, screw fixing seats, a screw, nuts, long connecting rods, short connecting rods and a limiting seat, wherein the screw is driven by the motor through the retarding mechanism to rotate; the directions of threads at the two ends of the screw are opposite, so that the nuts on the two sides of the screw move relative to or opposite to each other; one end of each long connecting rod is hinged with the corresponding nut; the middle part of each long connecting rod is hinged with one end of the corresponding short connecting rod; and the other end of each short connecting rod is hinged with the corresponding screw fixing seat. The two nuts transversely move relative to or opposite to each other, so that the other end of each long connecting rod moves perpendicularly to fulfill the aim of lifting a top cover of the skylight. The electric lifting device is simple and rational in structure and high in practicability, and can be used stably and reliably.

Description

technical field [0001] The invention belongs to the field of automobile sunroofs, in particular to an electric lifting device for passenger car sunroofs. Background technique [0002] The sunroof of a bus is connected by a lifting device to the top cover of the sunroof and the middle frame fixed on the roof. At present, most of the sunroof lifting devices of passenger cars in China are manually operated, and the disadvantages of manual operation are also obvious. Manual sunroofs have requirements for height, and short people It cannot be reached; people with weak strength cannot push or pull it down; during the driving process of the bus, the driver cannot operate the opening and closing of the sunroof. Although the "passenger car safety automatic sunroof" disclosed in Chinese patent 200520102636.3 has appeared, the gear and rack structure principle adopted by it is easy to fall into debris during use, resulting in jamming, which greatly increases the failure rate of use. I...

AI Technical Summary

Problems solved by technology

[0002] The sunroof of a bus is connected by a lifting device to the top cover of the sunroof and the middle frame fixed on the roof. At present, most of the sunroof lifting devices of passenger cars in China are manually operated, and the disadvantages of manual operation are also obvious. Manual sunroofs have requirements for height, and short people It cannot be reached; people with weak strength cannot push or pull it down; the driver cannot operate the opening and closing of the sunroof during the driving of the bus

Although the "passenger car safety automatic sunroof" disclosed in Chinese patent 200520102636.3 has appeared, the gear and rack structure principle adopted by it is easy to fall into debris during use, resulting in jamming, which greatly increases the failure rate of use. It is not easy to rule out, and its structure does not have a locking function. The bus shakes and swings during driving, and the gear and rack will also vibrate, causing the sunroof to open.

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