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Embedded screw

A built-in screw technology, applied in the direction of screws, threaded fasteners, connecting components, etc., can solve the problems of lack of fixation and achieve short fastening effects and thin mobile phone thickness

Inactive Publication Date: 2017-02-15
SUZHOU SONGSHUN HARDWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many kinds of mobile phones on the market. With the development of mobile phones, the internal parts of mobile phones are also developing towards fineness, firmness and durability. Nuts and screws are used in many mobile phones, and nuts are mostly used on the surface of circuit boards, while the internal space of mobile phones is compact. , Too many nuts exposed outside the circuit board make the mobile phone unable to develop thinner, and if the thickness of the nut is reduced, the contact surface between the screw and the nut will be reduced, which will not achieve a good fixing effect

Method used

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] as attached figure 1 , 2 As shown, a built-in screw according to the present invention includes a head 1 and a threaded rod 2 connected to the head 1, and two groups of symmetrical The groove 3 is provided, and the inner wall of the groove 3 is provided with a bayonet 4; the groove 3 is respectively equipped with a spring 31 and a telescopic arm 32; one end of the spring 31 is connected to the groove 3, and the other end is connected to the telescopic arm 32; The telescopic arm 32 is provided with a protrusion 33 used in conjunction with the bayonet socket 4 . The telescopic arm 32 can freely expand and contract in the groove 3 under the force of the spring 31 , and when it needs to shrink in the groove 3 , the positioning is realized through the bayonet 4 .

[0017] For the convenience of hand-tightening, knurling is provid...

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Abstract

The invention relates to an embedded screw which comprises a head and a rod connected with the head. A groove is formed in the portion, close to the end face of the head, of the outer radial face of the head and internally provided with an elastic telescopic arm assembly. According to the embedded screw, during assembly, the head and the rod of the screw are screwed into a head hole reserved in a circuit board together, and telescopic arms in the head of the screw stretch out and abut against the interior of the head hole; and the fastening effect is good while the head of the screw is made thinner and the rod of the screw is made shorter, the inner space of a mobile phone is not occupied, and the thickness of the mobile phone can be made lower.

Description

technical field [0001] The invention relates to a screw, in particular to an embedded screw, belonging to the technical field of fasteners. Background technique [0002] At present, there are many kinds of mobile phones on the market. With the development of mobile phones, the internal parts of mobile phones are also developing towards fineness, firmness and durability. Nuts and screws are used in many mobile phones, and nuts are mostly used on the surface of circuit boards, while the internal space of mobile phones is compact. , Too many nuts exposed outside the circuit board make the mobile phone unable to develop thinner, and if the thickness of the nut is reduced, the contact surface between the screw and the nut will be reduced, which will not achieve a good fixing effect. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the prior art, and provide an in-line screw that is beautiful, occupies a small area and ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/06
CPCF16B35/06
Inventor 归杏花
Owner SUZHOU SONGSHUN HARDWARE
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