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Helical insert

A sheath and thread technology, applied to nuts, bolts, threaded fasteners, etc., can solve problems such as difficulty in manufacturing thread sheaths, achieve the effects of improving production efficiency, simplifying the manufacturing process, and improving the convenience of use

Inactive Publication Date: 2016-01-27
YEOU YUAN MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the two rounded corners 911 located at the end and the head of the helical part 91 need to undergo additional grinding before they can be formed, so the thread sheath 9 also has the problem of being difficult to manufacture.

Method used

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Examples

Experimental program
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Embodiment Construction

[0056] In order to make the above-mentioned and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention are specifically cited below, together with the accompanying drawings, as follows:

[0057] Please refer to image 3 , which is an embodiment of the thread sheath of the present invention. The thread sheath generally includes a helical part 1, a tail part 2 and a lateral notch 3, the tail part 2 is connected to one end of the helical part 1, and the lateral notch 3 is arranged between the tail part 2 and the helical part 1 connection.

[0058] Please refer to image 3 , 5 , the spiral part 1 is a hollow cylindrical spiral structure, and the spiral part 1 has a first end 1a and a second end 1b. The screw part 1 can be combined into a screw hole A of a base B. As shown in FIG. The screw hole A has an internal thread, and the pitch P1 (pitch) of the spiral portion 1 is approximately the same as...

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PUM

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Abstract

The invention discloses a helical insert to remove the tail of existing helical inserts. The helical insert comprises a spiral portion that has a hollow cylindrical helical structure, and the spiral portion comprises a first end and a second end; a tail that comprises a third end and a forth end, and the third end of the tail is connected with the second end of the spiral portion, and the forth end is projected to the hollow part of the spiral portion; and a lateral notch that is set at the inside corner of the connection of the tail and the spiral portion.

Description

technical field [0001] The invention relates to a thread sheath, in particular to a thread sheath for preventing the thread of a screw from collapsing when it is screwed into a screw hole. Background technique [0002] Please refer to figure 1 , which is a bottom view of an existing screw sheath 8. The existing thread sheath 8 is formed by continuous winding of a wire. The thread sheath 8 includes a helical part 81 and a tail part 82. The helical part 81 is a part where the wire is wound to form a hollow cylindrical helical structure. , the tail portion 82 is connected to the end of the spiral portion 81 , and the tail portion 82 extends toward the center of the spiral portion 81 . Accordingly, the tail portion 82 of the thread sheath 8 can be clamped by a tool, so that the helical portion 81 of the thread sheath 8 can be screwed and locked into a screw hole of a base gradually for a screw to be screwed together again. Locked into the screw part 81 . [0003] Moreover, a...

Claims

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Application Information

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IPC IPC(8): F16B41/00
Inventor 邱春芳何肇基
Owner YEOU YUAN MACHINE