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Fastening device

A cover and seat technology, which is applied in the direction of instruments, electrical digital data processing, electrical equipment shells/cabinets/drawers, etc., can solve the problems of complex fastening devices, easy breakage, and the development trend of unfavorable miniaturization of electronic devices. Achieve the effect of simple structure and not easy to break

Inactive Publication Date: 2013-12-18
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing fastening devices on the disc cover use hooks to fasten the disc cover to the electronic device, and need to add buttons and connecting rods to realize the loosening of the hooks. This kind of fastening device is complex and Easy to break, which is not conducive to the current development trend of miniaturization of electronic devices

Method used

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  • Fastening device
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Examples

Experimental program
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Embodiment Construction

[0025] Please refer to figure 1 and figure 2 . It is a schematic structural diagram of the fastening device 100 in an embodiment of the present invention. The fastening device 100 includes a cover body 10 , a base body 20 and an elastic arm 30 . The cover body 10 is installed on the base body 20 , and a spring 40 is further provided between the cover body 10 and the base body 20 , and the spring 40 is used to provide elastic restoring force for the cover body 10 .

[0026] please combine image 3 , The seat body 20 includes an upper seat body 21 and a lower seat body 22 . The upper base 21 includes a post 211 , a board 212 and a pair of hooks 213 , and the hooks 213 hook the sides of the lower base 22 to engage the upper base 21 and the lower base 22 together. The board body 212 has an opening 214 thereon.

[0027] please combine Figure 4 , the elastic arm 30 includes a fixed arm 31 and a rotating arm 32 , and the rotating arm 32 includes a first end portion 321 and a...

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PUM

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Abstract

A fastening device comprises a base, a cover, an elastic arm and a spring. The cover comprises a first lug and a second lug which protrude from the inner side face of the cover, a recessed sunken surface and a first oblique plane connected with the sunken surface are formed at the top end of the first lug, and a second oblique plane is formed at the bottom of the first lug. The second lug comprises a third oblique plane located above the sunken surface. The cover is arranged on the base in a sleeved manner through an opening portion. The elastic arm is connected with the base and can move relatively to the same. The tail end of the elastic arm comprises a fastening portion which penetrates the opening portion of the cover to be accommodated inside the cover. The spring is located between the base and the cover. By means of pressing the cover, the fastening portion of the elastic spring is fastened in the sunken surface to have the cover fastened; by means of further pressing the cover, the fastening portion is unfastened with the sunken surface to have the cover unfastened. In the process of fastening and unfastening, the elastic arm can be reset by the aid of own elastic deformation, so that the fastening device is less prone to breakage and simple in structure.

Description

technical field [0001] The invention relates to a fastening device, in particular to a fastening device which is reset by an elastic arm. Background technique [0002] Electronic devices are usually equipped with snap-fit ​​devices. For example, a disc cover in an optical disc drive is usually connected with a snap-fit ​​device for conveniently opening and closing the disc cover. Most of the existing fastening devices on the disc cover use hooks to fasten the disc cover to the electronic device, and need to add buttons and connecting rods to realize the loosening of the hooks. This kind of fastening device is complex and It is easy to break, which is not conducive to the current development trend of miniaturization of electronic devices. Contents of the invention [0003] In view of this, the present invention provides a fastening device that utilizes elastic arms to reset. [0004] A fastening device, including a seat body and a cover body, and also includes an elastic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K5/02
CPCG06F1/183H05K5/0221Y10T403/60
Inventor 赵关东王合利
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD