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Block-to-stop transmission device

A kind of transmission device, the technology of encountering resistance, applied in the direction of door/window protection device, window/door, building components, etc.

Inactive Publication Date: 2015-04-01
ZHANGZHOU CHANGTAI NEW QILIN MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And in order to overcome the problem that people or objects cannot stop or rebound in time when the existing electric rolling shutter door falls and closes

Method used

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  • Block-to-stop transmission device
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 The transmission device that stops when encountering resistance is shown, which is a rolling door motor, including a small sprocket 1, a large sprocket 2, a chain 3, a control device 4 and a mounting seat plate 5, a small sprocket 1, and a large sprocket 2 , chain 3, and control device 4 are all fixedly installed on the mounting seat plate 5; wherein the small sprocket 1 is driven by the motor 6, and the large sprocket 2 drives the roller of the rolling door to rotate to control the upward or downward movement of the door curtain on the cylinder.

[0022] Described control device 4 is provided with microswitch 41, and microswitch 41 is provided with 1 main contact wheel 42 and 2 auxiliary contact wheels 43, and main contact wheel 42 and auxiliary contact wheel 43 are installed in the contact position with chain 3 , and make the main contact wheel 42 and the auxiliary contact wheel 43 roll on the shaft sleeve 31 of the chain 3 .

[0023] The control de...

Embodiment 2

[0030] As described in Embodiment 1, a transmission device that stops immediately when encountering resistance, a chain contact device can be installed on the micro switch; the electric key of the micro switch is connected to the chain contact device 45, and when the external force makes the micro switch and the chain contact device When the relative position has a rated change, the opening and closing state of the micro switch can be changed; the elastic device is arranged between the micro switch and the chain contact device, and acts on the micro switch and the chain contact device respectively, so that when the external force makes the micro switch When the relative position of the dynamic switch and the chain contact device changes, the micro switch and the chain contact device have a tendency to return to the default state, and its installation position is satisfied. When the tension state of the chain changes and reaches the rated value, the relative position of the micr...

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Abstract

The invention provides a block-to-stop transmission device; the block-to-stop transmission device comprises a drive chain wheel and a transmission chain wheel; the drive chain wheel and the transmission chain wheel are concurrently circled by an enclosed chain, so as to enable the drive chain wheel and the transmission chain wheel to be driven by the chain; a control device of the drive chain wheel is arranged in a never changed position with respect to the rotation axis of the drive chain wheel; a switch of the control device always directly or indirectly pushes against the chain via an elastic device, thus the position of the switch with respect to the control device can be changed when the chain is not wrapped on the drive chain wheel, or the portion of chain on the transmission chain wheel is loosened or tightened, thereby changing the work state of the switch. The control device of the block-to-stop transmission device is matched with the chain by using the elastic device and a micro switch, so as to conveniently and effectively identify whether the output end of the transmission mechanism is blocked, and timely control the drive chain wheel to stop the power output by controlling the triggering of the switch, thereby achieving the block-to-stop function; additionally, a certain motion process exists when the chain changes from the tightened position to the loosened limit position, thus the whole mechanism has a margin for sufficient buffering, so as to effectively prevent the mechanical parts from irreversible deformation caused by emergent forward braking of the mechanical parts.

Description

technical field [0001] The invention relates to the field of link transmission mechanisms, in particular to a control mechanism for the power output of the link transmission of a rolling shutter door machine. Background technique [0002] The chain transmission mechanism has been widely used because of its low cost and relatively stable performance, such as: electric rolling door machine, but its safety problem is becoming more and more prominent. Taking the electric rolling door as an example, in the actual use process, the door curtain falls During the closing process, when the rolling door body touches people, animals or objects, it cannot stop or cannot stop or rebound in time, which will directly cause damage to them, and also damage the door machine and motor of the rolling door. [0003] In order to solve the above problems, corresponding technical solutions have been provided in the field, such as: "An Electric Rolling Shutter Door That Stops When Encountering Obstru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06B9/68E06B9/82
Inventor 陈菁
Owner ZHANGZHOU CHANGTAI NEW QILIN MACHINE
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