screw

Abstract

The present invention provides a screw, which mainly forms a threadless section between the first thread and the guide tooth of the rod body, and at the same time, a threadless section is provided at the threadless section, which is respectively connected to the first thread and the guide tooth. The cutting edge connected with the end, so that when the locking operation is performed, the guide tooth can be used to assist the locking part to lock and enter, and then the toothless section can be used to accommodate the chips generated during the locking process, and the cutting edge It can also assist in chopping the uncut wood fiber during the entry process of the twistlock, which can effectively reduce the locking resistance and accelerate the improvement of locking efficiency.

Description

technical field [0001] The invention relates to a screw design, in particular to a screw that accelerates and improves locking efficiency. Background technique [0002] refer to figure 1 , the screw 1 of the prior art includes a screw head 11, a rod body 12 extending outward from the screw head 11, a locking portion 13 opposite the screw head 11 and formed at the other end of the rod body 12, and a helical ring The thread 14 provided on the rod body 12; therefore, when performing the locking operation, a tool (not shown) can be used to drive the screw head 11 to drill into a lock 2, and at the same time the screw The teeth 14 will continue to be screwed into the lock 13 together with the guide of the lock part 13 when the lock part 13 is driven by the rotation of the tool, thereby achieving the effect of locking and positioning. [0003] However, after use, it is found that the screw 1 of the prior art can only use the locking part 13 to enter the lock 2 in a gradual and s...

AI Technical Summary

Problems solved by technology

[0003] However, after use, it is found that the screw 1 of the prior art can only use the locking part 13 to enter the lock 2 in a gradual and squeezed manner during the locking process, until the thread 14 continues the locking Part 13 enters the lock 2, so that the thread 13 can be screwed into the locking action. Therefore, during the relocking process, only the thread 14 can be used to cut the fibers of the lock 2 As a result, at the initial stage of locking, the locking part 13 is still subjected to the subsequent screw-in action driven by the screw head 11 to squeeze the lock 2, so not only the lock cannot be effectively locked. The fibers of the object 2 are cut off, and at the same time, the fibers of the object 2 will be wound on the rod body 12, thereby greatly increasing the locking torque, which will not only affect the actual locking efficiency, but also cause the chips generated by the subsequent screwing to fail. It is easy to discharge outward through the chip removal groove 141 formed between the screw teeth 14, so that the chips are easy to accumulate in the lock 2, if the screw 1 continues to be driven by the tool and the lock If the lock 2 produces a twist-lock effect, it will not only be relatively labor-intensive, but also cause too many chips in the lock 2 to form a compression phenomenon inside the lock 2, which will easily cause the lock 2 to have The lack of cracked wood occurs, and it needs to be improved

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