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Automatic door cover opening device

An automatic opening and door cover technology, which is applied in door/window accessories, power control mechanisms, buildings, etc., can solve problems such as shaking and sudden changes in door cover rotation speed, and achieve the effect of eliminating shaking and opening smoothly

Pending Publication Date: 2018-03-27
NINGGUO JULONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The automatic opening mechanism of the door cover is turned up to 120 degrees from the horizontal direction. When using gear transmission, there must be side clearance between the wheel trains. Therefore, when the door cover is turned up to about 90 degrees, the center of gravity of the door cover changes in the front and rear directions. The existence of backlash causes sudden changes in the rotation speed of the door cover, resulting in shaking

Method used

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Embodiment Construction

[0024] combine Figure 1-Figure 5 , is a structural schematic diagram of an embodiment of an automatic door opening device of the present invention, including a rotating shaft 5 connected to the door cover 1, and a torsion spring 6 is sleeved on the rotating shaft 5, and the torsion spring 6 has a fixed end and a free end, free The end is set on the rotating shaft 5, and the fixed end is set on the housing 2. The rotating shaft 5 is connected with the motor 7 installed on the housing 2 through the gear mechanism wrapped inside the housing 2; A flange 502 is provided, and a positioning pin 503 is provided on the flange 502. The free end of the torsion spring 6 is freely connected to the positioning pin 503, and the fixed end is fixedly matched with the positioning hole 4 of the torsion spring on the housing 2. connection, the two ends of the rotating shaft 5 are provided with a flat square 501, the flat square 501 at one end is connected with the flat square hole of the door co...

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Abstract

The invention provides an automatic door cover opening device, and relates to the technical field of door cover opening mechanisms. The automatic door cover opening device overcomes the defect of shaking caused by sudden change of the door cover rotational speed due to the fact that a side clearance exists in an existing door cover opening device. The automatic door cover opening device comprisesa rotating shaft connected with a door cover, a torsion spring is arranged on the rotating shaft in a sleeving mode and is provided with a fixed end and a free end, the free end is arranged on the rotating shaft, and the fixed end is arranged on a shell; the rotating shaft is in transmission connection with a motor mounted on the shell through a gear mechanism wrapped in the shell; the rotating shaft is provided with a flange, and the flange is provided with a positioning pin; and the free end of the torsion spring is freely connected with the positioning pin in hanging and abutting modes, andthe fixed end of the torsion spring is connected with a torsion spring positioning hole formed in the shell in a fixed fit mode. According to the automatic door cover opening device, spring damping is added to an output gear, so that a gear train is always subject to torque in the closing direction, the stress surface of the gear is not changed accordingly, opening of the door cover is smooth, and the shaking phenomenon of opening a door is eliminated.

Description

technical field [0001] The invention relates to the technical field of door cover opening mechanisms, in particular to an automatic door cover opening device. Background technique [0002] The automatic opening mechanism of the door cover is turned up to 120 degrees from the horizontal direction. When using gear transmission, there must be side clearance between the wheel trains. Therefore, when the door cover is turned up to about 90 degrees, the center of gravity of the door cover changes in the front and rear directions. The existence of backlash causes sudden changes in the rotation speed of the door cover, resulting in shaking. Contents of the invention [0003] The object of the present invention is to provide a door cover automatic opening device, by adding a spring damper on the output gear, the gear train is always subjected to the torque in the closing direction, so that the gear bearing surface does not change, and the door cover opens smoothly , to overcome th...

Claims

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Application Information

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IPC IPC(8): E05F15/614
CPCE05F15/614
Inventor 刘军杨劲松
Owner NINGGUO JULONG IND
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