TWM608587U - Screw structure - Google Patents

Abstract

This creation is a screw structure, which is mainly provided with an expansion part on the screw thread. The shape of the expansion part is about the same as the thread section, and the thickness of the expansion part is greater than the thickness of the thread, and the height of the expansion part is greater than that of the thread. When the screw is screwed into the workpiece, use the expanded part to expand the cut workpiece after cutting the workpiece with the screw thread, so that a distance between the expanded part and the workpiece is created, and the gap between the expanded part and the workpiece is eliminated. The friction force reduces the torque required to lock the screw and saves effort.

Description

Screw structure

This creation is related to screws, especially a screw structure that can reduce the torque when twisting the lock.

As shown in Figure 9 is a schematic cross-sectional view of a general screw 900 locked into a workpiece 90. As shown in the figure, the screw 900 includes a screw body 91, a head 92 connected to one end of the screw body 91, and a spiral The threaded portion 93 that protrudes and surrounds the outer peripheral surface of the screw body 91. When the screw 900 is locked into the workpiece 90 (or withdrawn from the workpiece), the surface of the screw body 91 and the surface of the threaded portion 93 are attached The workpiece 90 advances (or retreats). Therefore, frictional forces are generated between the surfaces of the screw body 91 and the threaded portion 93 and the workpiece 90, which makes it difficult to lock the screw 900 in or withdraw the screw 900.

This creation is to provide a screw structure that can reduce the torque required to lock the workpiece and make the screw lock more labor-saving.

The screw structure of this creation includes: a rod part with a tip; a thread part spirally wound on the outer surface of the rod part with a thread spacing between adjacent threads; its characteristics are The thread of the threaded part is provided with an expanded part, the The thickness of the flared portion is greater than the thickness of the thread, and the height of the flared portion is greater than the height of the thread.

The above-mentioned screw structure includes a plurality of enlarged portions, which are arranged at intervals on the threads at different positions of the threaded portion.

In the above screw structure, the adjacent enlarged portions are staggeredly arranged on the threads at different positions.

In the above screw structure, the shape of the expanded portion is approximately the same as the thread.

In the above screw structure, the expanded portion extends from above, below, and outside of the thread.

The above screw structure includes a diagonal pattern which is protrudingly provided on the surface of the rod and is located between the two threads, and the height of the diagonal pattern is lower than the height of the thread.

The above-mentioned screw structure includes a plurality of oblique lines, and the oblique lines are arranged at intervals between the threads at different positions of the threaded portion.

In the above screw structure, the adjacent diagonal lines are arranged in a staggered manner.

In the above screw structure, the direction of the diagonal pattern is opposite to the direction of the thread.

This creation uses the enlarged part on the thread part to open the workpiece cut by the thread, so that the friction between the thread part and the workpiece after the enlarged part is reduced. In addition, the workpiece is opened through the diagonal pattern, so that the workpiece after the diagonal pattern The friction between the rod and the workpiece is reduced, making it more labor-saving to turn the lock screw or loosen the screw. Moreover, the expansion and diagonal pattern can be Reduce friction, and their respective configurations can keep the screws together.

"Learning"

900: Screw

91: Screw body

92: head

93: Threaded part

90: Workpiece

"This Creation"

100, 200: Screw structure

10: Rod

20: Threaded part

11: head

12: Tip

21: Thread

22: Expansion

30: diagonal pattern

80: Workpiece

Figure 1 is a three-dimensional schematic diagram of an embodiment of the creative screw structure.

Figure 2 is the front view of Figure 1 of this creation.

Figure 3 is a side view of Figure 1 of this creation.

Figure 4 is a cross-sectional schematic diagram of the screw structure of this creation.

Figure 5 is the 5-5 section line view in Figure 4.

Figure 6 is a schematic cross-sectional view of the work being locked into this creation.

Figure 7 is a front view of another embodiment of the screw structure of the present invention.

Figure 8 is the right side view of Figure 7.

Figure 9 is a schematic cross-sectional view of a conventional screw locked into a workpiece.

In order to enable your reviewer to have a better understanding of the features and characteristics of this creation, the following preferred embodiments are listed and illustrated as follows:

Please refer to Figures 1 to 6, which is a preferred embodiment of the screw structure 100 of the present invention, which includes a rod portion 10 and a threaded portion 20.

In one embodiment, one end of the rod portion 10 is a head 11, and the other end is a tip 12, the threaded portion 20 is screwed on the outer surface of the rod portion 10, and the threaded portion 20 (such as the second to second Figure 3) has a plurality of threads 21 diagonally arranged on the rod part 10 in parallel, and there is a thread pitch D between the adjacent threads 21. In addition, the thread 21 of the thread part 20 is provided with an enlarged portion 22, the The shape of the cross section of the flared portion 22 is approximately the same as that of the thread 21, except that the thickness of the flared portion 22 is greater than the thickness of the thread 21, and the height h _{2 of} the flared portion 22 is greater than the height h _{1 of the} thread 21 (see As shown in Figure 5), in the embodiment, the expanded portion 22 is extended from above, below and outside the thread 21, and is integrally formed with the thread 21.

In one embodiment, it includes a plurality of enlarged portions 22, which are arranged at intervals on the threads 21 at different positions of the threaded portion 20, as shown in Figure 2, and the adjacent enlarged portions 22 are arranged in a staggered manner. On the threads 21 in different positions.

In addition, in one embodiment, a plurality of diagonal patterns 30 are included. The directions of the diagonal patterns 30 are opposite to the direction of the threads 21 and are protruding on the surface of the rod 10 and are interposed between the two threads 21. , Both ends of each diagonal pattern 30 are in contact with the upper and lower threads 21 (see Figure 3), and the height h _{3 of} the diagonal pattern 30 is lower than the height h _{1 of the} thread 21 (see Figure 4 Shown). In the embodiment, the diagonal patterns 30 are arranged at intervals between the threads 21 at different positions of the threaded portion 20, and the adjacent diagonal patterns 30 are staggeredly arranged between the threads 21 at different positions (see As shown in Figure 2), all the diagonal patterns 30 are evenly arranged on both sides of the rod portion 10, and the diagonal patterns 30 adjacent to the same side are separated by two thread pitches D.

The above is an introduction to the various components and assembly methods of a screw structure 100 provided by a preferred embodiment of the creation, and then the characteristics of its use are described as follows:

Please refer to Figure 6, when the creation is locked in the workpiece 80, the front end of the threaded portion 20 is screwed into the workpiece 80, and the enlarged portion 22 will then The workpiece 80 cut by the threaded part 20 is enlarged, so that there is a gap g between the subsequent thread 21 and the workpiece 80. This gap g makes the thread 21 and the workpiece 80 have no friction, so the torque required for locking can be reduced, which is very It saves effort, and the gap g is very small, and the connection between the threaded portion 20 and the workpiece 80 is not affected.

In addition, when the work 80 is locked in this creation, the work 80 is supported by the diagonal pattern 30, so that there is a gap G between the rod 10 and the workpiece 80 after the diagonal pattern 30. This gap G prevents the rod 10 and the workpiece 80 from being separated. The friction force, therefore, can reduce the torque required for locking and save effort, and the gap G is very small, which will not affect the combination between the rod portion 10 and the workpiece 80.

Figures 7 and 8 show the screw structure 200 of the second embodiment of the present invention. In the following embodiments, similar components in the previous embodiment use the same drawing numbers, which also contain all the components and technical features of the previous embodiment, namely the rod Part 10, threaded part 20, flared portion 22, diagonal pattern 30 and other features. The difference between this embodiment and the previous embodiment is only in the arrangement position of the flared portion 22 and diagonal pattern 30. The others are exactly the same, please Refer to the previous description.

The above disclosures are only the preferred embodiments provided by this creation, and are not intended to limit the scope of implementation of this creation. All relevant artisans in this technical field who make equal changes based on this creation should belong to this creation. The scope of coverage.

100: Screw structure

10: Rod

20: Threaded part

11: head

12: Tip

22: Expansion

30: diagonal pattern

Claims (9)

A screw structure including: A shaft, the shaft has a tip; A threaded portion, the threaded portion is threaded around the outer surface of the rod, and there is a thread pitch between adjacent threads; It is characterized in that an enlarged portion is provided on the thread of the threaded portion, the thickness of the enlarged portion is greater than the thickness of the thread, and the height of the enlarged portion is greater than the height of the thread. According to the screw structure described in item 1 of the scope of patent application, the screw structure includes a plurality of enlarged portions, which are arranged at intervals on the threads at different positions of the threaded portion. According to the screw structure described in item 2 of the scope of patent application, the adjacent enlarged portions are staggeredly arranged on the threads at different positions. According to the screw structure according to any one of items 1 to 3 of the scope of the patent application, the shape of the expanded portion is approximately the same as the thread. According to the screw structure according to any one of items 1 to 3 of the scope of patent application, the enlarged portion extends from above, below, and outside of the thread. According to the screw structure described in any one of items 1 to 3 of the scope of the patent application, the screw structure includes a diagonal pattern which is protrudingly provided on the surface of the rod and is located between the two threads. The height of the diagonal pattern is lower than the height of the thread. According to the screw structure described in item 6 of the scope of patent application, it includes a plurality of diagonal lines, and the diagonal lines are arranged at intervals between threads at different positions of the threaded portion. According to the screw structure described in item 7 of the scope of patent application, the adjacent diagonal lines are arranged in a staggered manner. According to the screw structure described in item 6 of the scope of patent application, the direction of the diagonal pattern is opposite to the direction of the thread.

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