File binding device for engineering audit

Abstract

The invention discloses a file binding device for engineering audit. The device comprises a base; a cavity is formed in the base; a vertical plate is fixedly mounted on one side of the top surface ofthe base; the top surface of the vertical plate is hinged with a horizontal pressing plate; a mounting plate is fixedly mounted on the bottom surface of the pressing plate; the bottom surface of the mounting plate is hinged with two support rods; the two support rods are distributed front and back; a horizontal support plate is arranged under the mounting plate; two first chutes with dovetail sections are formed in the top surface of the support plate; and the two first chutes are distributed front and back. When staples are used for binding files, first fixing pins, second fixing pins, thirdfixing pins and fourth fixing pins can be upwards bent in different directions to reach a horizontal state, so that the staples achieve tight grabbing in different directions, the grabbing force of the staples is improved, the file binding is firmer, the file scattering is prevented, and the use is convenient.

Description

technical field [0001] The invention belongs to the field of engineering audit, in particular to a file binding device for engineering audit. Background technique [0002] In the existing project audit, it is necessary to bind the paper to be audited in the project. Generally, there are many projects that need to be audited. The existing file binding device has more thickness due to the formation of paper during the binding process, resulting in staples It cannot pass through the paper, and it cannot bind thicker documents. Even if it can be bound, it requires a lot of physical strength, and it is easy to wrinkle around the binding hole, which affects the appearance. After binding, the staples are easy to fall off, causing the documents to be scattered. bring inconvenience. Contents of the invention [0003] The invention provides a file binding device for engineering audit, which is used to solve the defects in the prior art. [0004] The present invention is achieved t...

AI Technical Summary

Problems solved by technology

[0002] In the existing project audit, it is necessary to bind the papers to be audited in the project. Generally, there are many projects that need to be audited. The existing file binding device has more thickness due to the formation of paper during the binding process, resulting in staples It cannot pass through the paper, and it cannot bind thicker documents. Even if it can be bound, it requires a lot of physical strength, and it is easy to wrinkle around the binding hole, which affects the appearance. After binding, the staples are easy to fall off, causing the documents to be scattered. bring inconvenience

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