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A split countersunk head cross-drilling screw

A drill-tail screw, split-type technology, applied in the direction of screws, threaded fasteners, connecting components, etc., can solve the problems that the screws cannot be tightened or disassembled continuously, and the cross grooves are screwed by a screwdriver, etc., to improve practicability and ease of use. Effect

Active Publication Date: 2021-08-03
嘉兴震辰五金科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of tightening or dismounting the existing countersunk head cross-drilling screws, it is inevitable that the cross groove will be slipped by the screwdriver, causing the screw to be unable to continue to be tightened or disassembled. Therefore, a split-type countersunk head cross-drilling screw is needed

Method used

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  • A split countersunk head cross-drilling screw
  • A split countersunk head cross-drilling screw
  • A split countersunk head cross-drilling screw

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] see figure 1 , figure 2 and image 3 , the present invention is a split type countersunk head cross drill tail screw, including a screw body 1, a drill tail 2 and a screw head mechanism 3, the front end of the screw body 1 is provided with a drill tail 2, and the screw head mechanism 3 includes a screw head , a fixing mechanism 33 and a special dismantling tool 34, the screw head includes a plug body 32 and a screw head body 31 integrally formed on the rear end of the plug body 32, and the plug body 32 is provided with a front large and a rear small The rear end of the stepped hole 35 communicates with the groove bottom of the cross groove of the screw head body 31. The front part of the plug body 32 is provided with a fixing mechanism 33, and the fixing mechanism 33 includes a retractable The upper fixing body 331 and the lower fixing body 332, the upper end of the upper fixing body 331 extends beyond the upper end of the inserting body 32 when the upper fixing body...

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Abstract

The invention discloses a split-type countersunk head cross drill screw, which comprises a screw body, a drill tail and a screw head mechanism. The front end of the screw body is provided with a drill tail. The screw head mechanism includes a screw head, a fixing mechanism and a special The removal tool, the screw head includes a plug body and a screw body integrally formed on the rear end of the plug body, the plug body is provided with a stepped hole with a large front and a small rear, and the rear end of the stepped hole is connected to the The groove bottom of the cross groove of the screw head body is connected, and the front part of the plug-in body is provided with a fixing mechanism, and the fixing mechanism includes a telescopic upper fixing body and a lower fixing body. Beyond the upper end of the plug-in body, when the upper fixed body is retracted, its upper end is flush with the upper end of the plug-in body. Compared with the prior art, the screw head can be replaced, which further improves the practicability of the screw and is easy to use .

Description

technical field [0001] The invention relates to the technical field of a drill tail screw, in particular to the technical field of a split countersunk head cross drill tail screw. Background technique [0002] A screw is one of the most commonly used fastening parts. It uses the physical and mathematical principles of the circular rotation and friction of the object to gradually fasten the tool of the utensils. The drill tail screw is a new invention of people in recent years. The drill tail screw is a screw with a self-tapping drill head at the front end of the screw. It does not need to be used with a nut. It is also called a self-tapping screw. The tail of the drill tail screw is a drill tail or a pointed tail. It is not necessary to drill holes and drill wires on the workpiece first, and can directly drill, tap and lock on the setting materials and basic materials, especially in the combination of construction, construction, residential and other places, the workability ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B25/00
CPCF16B25/0094
Inventor 张云飞
Owner 嘉兴震辰五金科技股份有限公司
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