Anti-falling structure for drill bit and screw drill bit thereof

Abstract

The invention discloses an anti-falling structure for a drill bit. The structure comprises a shell, a drill bit base and limiting balls, wherein the limiting balls are connected with the shell and thedrill bit base in a rolling mode. The shell comprises an upper baffle ring, a lower baffle piece and a connecting wall, the upper baffle ring is fixedly connected with the connecting wall, the upperbaffle ring is matched with the drill bit base, the upper baffle ring is connected with the limiting balls in a rolling mode, and the connecting wall coats the drill bit base. The invention further discloses a screw drill bit, comprising the anti-falling structure for the drill bit, and further comprising a screw and a drill bit body, wherein the screw is fixedly connected with the drill bit body,the screw is arranged on the inner side of a sleeve body, and the drill bit body is matched with the threaded groove. On a basis of the prior art, the structure of the drill bit is improved, by matching the upper baffle ring with the limiting balls, vibration of the drill bit in a high-speed rotating process is effectively reduced, so that the risk that the drill bit is broken is reduced, the drill bit base is matched with the lower baffle piece, even if the drill bit falls off, the drill bit can be limited in the shell by the lower baffle piece, so that the drill bit is prevented from hurting people, and therefore, the safety of the drill bit in the using process is improved.

Description

technical field [0001] The invention relates to the technical field of drill equipment, in particular to a drill bit anti-off structure and a screw drill bit thereof. Background technique [0002] As a commonly used drilling tool in the field of machinery manufacturing, the drill bit has strong practicability, and it is convenient for the staff to perform drilling operations on products and materials. During work, due to the violent rotation of the drill bit, it is extremely easy to rotate at high speed. The drill bit falls off due to high-speed vibration, causing personal injury. Contents of the invention [0003] In order to solve the problem in the prior art that the drill bit is very easy to fall off and cause personal injury under the condition of high-speed rotation, the present invention proposes a drill bit detachment prevention structure and a screw drill bit thereof. [0004] An anti-off structure for a drill, comprising a housing, a drill base and a limit ball,...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem in the prior art that the drill bit is easy to fall off and cause personal injury under the condition of high-speed rotation, the present invention proposes a drill bit detachment prevention structure and its screw drill bit.

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