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Quick screw fastening apparatus

A screwdriver and fastening technology, which is applied in the field of quick fastening screwdrivers, can solve the problems of deformation, inconvenience, time-consuming and labor-intensive problems of tables and chairs, and achieve the effect of ingenious structure and novelty

Inactive Publication Date: 2014-02-05
沈娟燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Now middle schools generally use environment-friendly steel-wood combined desks and chairs. Because the table top and chair surface of this desk and chair are made of plywood, and other frames are made of steel materials, the height of the seat is lifted by eight screws with a diameter of 8mm. Tightening, when used for a long time, it is easy to cause the screws to loosen, and the tables and chairs are deformed and cannot be used
If you need to tighten the screws, you usually need two wrenches, one on the left and one on the right, which is time-consuming and laborious, and extremely inconvenient

Method used

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  • Quick screw fastening apparatus

Examples

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Effect test

Embodiment 1

[0014] Example 1: Such as figure 1 As shown, a fast fastening screw device includes a U-shaped fixing bar 1 and a Z-shaped twisting hand 2, the first clamping seat 3 of the cartridge wrench is fixed on the inner side of one end of the U-shaped fixing bar 1, and the inner side of the other end is connected with the There is a circular hole at the position opposite to the first clamp, one end of the Z-shaped wrench 2 passes through the circular hole, and the second clamp 4 of the cartridge wrench is fixed on the end.

[0015] A telescopic spring 5 is arranged between the second card seat 4 and the other end of the U-shaped fixing bar 1, and the telescopic spring sleeve 5 is mounted on the Z-shaped twisting hand, and the U-shaped fixing bar 1 and the second card seat 4 is provided with a catch 6 between which the telescopic spring is clamped.

[0016] A handle 7 is fixed on the bottom of the U-shaped fixing bar.

[0017] The U-shaped fixing bar is made of an iron bar with a t...

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Abstract

The invention discloses a quick screw fastening apparatus. The apparatus comprises a U-shaped fixing strip and a Z-shaped drift holder. A first snapping base for snapping a socket wrench is fixed on the inner side of the one end of the U-shaped fixing strip, and a round hole is opened in a position of the inner side of the other end, which is opposite to the first snapping base. One end of the Z-shaped drift holder penetrates the round hole, and a second snapping base for snapping the socket wrench is fixed at the end. According to the quick screw fastening apparatus, the structure is ingenious, the design is novel, the problem of quick fastening of screws on desks and chairs is solved, and the apparatus can be used on other similar screw structures and is provided with much market potential and worth of popularization and application.

Description

technical field [0001] The invention relates to a screw fastening tool, in particular to a fast screw fastening tool. Background technique [0002] Now middle schools generally use environment-friendly steel-wood combined desks and chairs. Because the table top and chair surface of this desk and chair are made of plywood, and other frames are made of steel materials, the height of the seat is lifted by eight screws with a diameter of 8mm. Fastening, when used for a long time, it is easy to cause the screws to loosen, deform the table and chair, and make it unusable. If the screw needs to be fastened, generally two wrenches are needed, one on the left and one on the right, which is time-consuming and laborious, and extremely inconvenient. Contents of the invention [0003] Purpose of the invention: the purpose of the present invention is to provide a quick fastening screw device for the deficiencies of the prior art, which has a simple structure and is easy to use, and can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/14
CPCB25B27/143
Inventor 沈娟燕
Owner 沈娟燕
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