Screw structure with baffle ring

Abstract

The invention relates to a screw structure with a baffle ring, comprising a screw, a sleeve barrel and the baffle ring, wherein the baffle ring is arranged on a screw rod of the screw to push against one end of the sleeve barrel so that the sleeve barrel supports against a screw head, therefore, the screw structure can be stably absorbed to an absorbing tool without rocking during the assembly operation of a printed circuit board, thereby enhancing the assembly precision.

Description

technical field [0001] The invention relates to a screw structure, in particular to a screw structure with a stopper ring which improves stability during assembly of printed circuit boards. Background technique [0002] Figure 1 to Figure 5 Respectively, the schematic diagram of the existing conventional screw structure Figure 1 , indicating Figure II , The schematic diagram of the existing conventional screw structure during assembly Figure 1 , indicating Figure II and signal Figure three . Generally, when the conventional screw is combined on the printed circuit board, a screw 5 with a screw head 51, a screw rod 52 and a sleeve 53 is used to correspond to the perforation 71 of a printed circuit board 7 with the screw 5 sleeve 53, Press the screw head 51 again, so that the serrated flange 531 of the screw 5 sleeve 53 is pressed on the perforation 7 [0003] 1 so that the screw 5 is combined on the printed circuit board 7 . [0004] Although the above-mentioned ...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned existing conventional screw structure can combine the screw 5 in the perforation 71 of the printed circuit board 7, the sleeve 53 of the screw 5 directly corresponds to the perforation 71 when it is installed, and the screw head 51 and the sleeve 53 cannot be compressed. Fixed, so when combined with the printed circuit board 7, the sleeve 53 and the screw head 51 are likely to shake due to the gap between them, resulting in misalignment, and the volume of the used screw 5 and the diameter of the through hole 71 are small. Therefore, when the flange 531 of the sleeve 53 of the screw 5 is intended to be placed on the perforation 71, errors are likely to occur, so that the flange 531 of the sleeve 53 cannot be aligned with the perforation 71 smoothly, resulting in poor pressing of the printed circuit board and damage to the board. , and when the flange 531 of the sleeve 53 cannot be set on the perforation 71 at one time, often due to the inaccurate plane accuracy of the printed circuit board 7, when the flange 531 of the sleeve 53 is set on the perforation 71, it cannot be completely pressed in the perforation 71, and prone to offset and skew

In addition, it is necessary to use each screw 5 to assemble the screw 5 by pressing, so the various shortcomings of the existing conventional technology cannot optimize the efficiency of the surface mount technology widely used in the industry when assembling the screw 5

[0005] This shows that the above-mentioned existing screw structure obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently.

In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but for a long time no suitable design has been developed, and the general product has no suitable structure to solve the above-mentioned problems. This is obviously the relevant industry. Urgent problem

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