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Strap fastening device

A technology of tightening and pulling the belt, applied in the direction of measuring devices, instruments, measuring instrument components, etc., can solve the problems of the belt being easily damaged, time-consuming and labor-intensive, and unusable, and achieves stable and reliable locking, convenient operation, and space-saving effects.

Inactive Publication Date: 2017-05-31
中国电波传播研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The structure of the drawstring fastening device in the prior art is easily deformed and stuck under the condition of shock and vibration, and it is time-consuming and laborious to loosen the drawstring
When it cannot be fixed on a rigid structure, it is often installed in the air together with the drawstring, and the drawstring is more likely to be damaged under vibration and impact
And in some cases where the installation location is limited, it cannot be used

Method used

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Examples

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Embodiment 1

[0024] Example 1, such as Figure 1-2 As shown, this embodiment discloses a drawstring tightening device. An end cover 2 is arranged on one side plate 1 of the device, a driving wheel 3 is installed on the end cover 2, and a winding belt is arranged between the two side plates of the device. Pulley 5, one side of this winding pulley 5 is fixedly connected with above-mentioned driving wheel 3, and described driving wheel 3 is ratchet, as Figure 4 As shown, a ratchet 6 that engages with the ratchet teeth is also provided in the end cover 2. There are two circular grooves at the bottom of the ratchet 6, which correspond to the two gear positions of clockwise and counterclockwise respectively, and are installed on the side The spring 7 in the plate can push the ball 8 into the circular groove to fix the gear position of the pawl 6. After the gear position is fixed, the driving wheel 3 can only rotate in one direction and cannot rotate in the opposite direction. It is installed ou...

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Abstract

The invention discloses a strap fastening device, which is characterized in that a side plate of the device is provided with end covers, each end cover is provided with a driving wheel, strap winding wheels are arranged between two side plates of the device, one side of strap winding wheel is fixedly connected with the corresponding driving wheel, the driving wheel is a ratchet wheel, the end cover is further internally provided with a pawl which is in tooth engagement with teeth of the ratchet wheel, the bottom of the pawl is provided with two circular grooves which respectively correspond to a clockwise gear and an anticlockwise gear, and a spring installed inside the side plate can pushes a ball into the corresponding circular groove so as to enable the gear of the pawl to be fixed. According to the strap fastening device disclosed by the invention, the driving wheel fixedly connected with the strap winding wheel is a ratchet wheel, the pawl is in tooth engagement with the teeth of the corresponding ratchet wheel, the driving wheel can only drive the strap winding wheel to rotate unidirectionally because of a limiting function of the pawl so as to enable a strap to be fastened or loosened but not rotate in the reverse direction, and an effect of strap locking can be achieved under the condition that the driving wheel does not rotate.

Description

technical field [0001] The invention relates to the field of drawstring tightening devices, in particular to a drawstring tightening device for adjusting and locking a drawstring in an impact vibration environment. Background technique [0002] In the vehicle-mounted detection system, the antenna needs to be suspended outside the vehicle. In order to meet the requirements of adaptability to different terrains, the suspension system adopts a flexible suspension method, in which the height of the antenna from the ground needs to be realized by adjusting the length of the cable or the strap. After the adjustment is appropriate, the length needs to be locked to ensure the consistency of the height of the antenna from the ground. Therefore, a device with a drawstring fastening function is required. [0003] The structure of the drawstring fastening device in the prior art is easily deformed and stuck under the condition of shock and vibration, and it takes time and effort to loos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D11/16
CPCG01D11/16
Inventor 刘斌杨新丁振婷陈学友马志亮宋冰韩鑫朱晨
Owner 中国电波传播研究所
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