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Garage door safety system for detecting obstacles

A security system, garage door technology, applied in door/window accessories, building structure, wing fan control mechanism, etc., can solve problems such as danger and misoperation

Inactive Publication Date: 2017-02-22
桐城市祥瑞机动车辆检测有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, in the case of obstacles under the garage door, the door will still operate normally, resulting in misoperation, which will lead to danger

Method used

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  • Garage door safety system for detecting obstacles
  • Garage door safety system for detecting obstacles
  • Garage door safety system for detecting obstacles

Examples

Experimental program
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Embodiment Construction

[0012] figure 1 Shows the garage door safety system of the present invention, comprising a control circuit 3, a motor 2, a drive belt 5 connected to the motor 2, a drive arm 6 releasably connected to the drive belt 5, the drive arm 6 is connected to the garage The door 1 is connected, the control circuit 3 operates the motor 2 according to the command received, the motor 2 moves the driving arm 6 through the driving belt 5, and the driving arm 6 drives the garage door 1 to slide along the door frame 4, thereby opening or closing the garage door 1, when the garage door 1 In the fully open position and in the fully closed position, the control circuit 3 stops the operation of the motor 2, thereby stopping the movement of the garage door 1. The light emitting device 7 and the light receiving device 8 are installed near the bottom of the door frame 4, and the light emitting device 7 and the light receiving device 8 are installed on the same side of the door frame 4, the light emit...

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Abstract

The invention relates to a garage door safety system for detecting obstacles. The garage door safety system comprises a motor device for opening and closing a garage door, a control circuit arranged near a motor and used for controlling the motor to open and close the door, a light transmitting device sending out transmitted light, and a light receiving device communicating with the control circuit and receiving the light. The light transmitting device and the light receiving device are arranged on one side of a door frame, and the other side, opposite to the light transmitting device and the light receiving device, of the door frame is provided with an optical reflection device. The light receiving device receives the reflection light sent out from the light transmitting device and reflected through the optical reflection device, an optical element used for changing the polarization direction of the reflection light is arranged at the position of the optical reflection device, and an optical element where only light in one polarization direction can pass is arranged at the position of the light receiving device. By means of the system, when the obstacles exist below the door, the garbage door cannot be mistakenly operated, and safety is improved.

Description

technical field [0001] The present invention relates to an obstacle detection security system for garage doors. Background technique [0002] Invention In the garage door system, from a safety point of view, the garage door is generally not allowed to move downward when there is an obstacle under the door, so it is very popular to install a safety system that detects obstacles in the garage door system. In the existing garage door system, for the convenience of installation, a light-emitting device and a light-receiving device are usually installed on one side of the door frame, and an optical reflection device is installed on the opposite side of the door frame. When there is no obstacle under the door, the light-receiving device receives In this case, the light receiving device sends a safety signal to the control circuit, and the door operates normally; when there is an obstacle under the door, the light receiving device will not receive the light from the optical reflect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05F15/43
CPCE05F15/43E05F2015/435E05Y2900/106E05Y2900/132
Inventor 王亮
Owner 桐城市祥瑞机动车辆检测有限公司
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