TWI873420B - Stud structure - Google Patents

Abstract

The present invention relates to a pull-stud structure, comprising: a set body, which comprises a hollow tube with a through hole inside, a stopper extending outward from the bottom side of the hollow tube, and an expansion part on the top side of the hollow tube, the expansion part extends downward and converges to form a neck, the bottom side of the neck extends to the top side of the stopper; a pull rod, which comprises a head, the bottom side of the head is narrowed and obliquely extended to form a striking part, and a rod body extending from the bottom side of the striking part and penetrating into the through hole , the impact part applies force to the expansion part to make the sleeve body move vertically downward a predetermined distance, and the head passes through the perforation of the hollow tube to make the expansion part and the neck radially expand and deform outward in a transverse manner, and the expansion part and the neck are subjected to the stress of the impact part without compressive deformation or slightly compressive deformation, so as to be locked at a preset first plate and a preset second plate, and the head is in a non-deformed or slightly deformed state to detach from the sleeve body.

Description

Stud structure

The present invention provides a pull-stud structure, in particular, a sleeve whose expansion part and neck have a predetermined thickness and hardness, which can prevent the sleeve from flipping outward (commonly known as blooming) and compression deformation during the riveting process, and the head of the pull rod will not be deformed or separated from the rod body, and the sleeve can be riveted to the preset first and second plates to form a stable structure.

According to the commonly used pull pin structure, it includes a pull rod and a sleeve. The pull rod has a T-shaped head, and a rod body extends from one end of the head. The sleeve has a hollow barrel, and an annular stopper extends outward from one end of the barrel. The rod body of the pull rod can pass through the inside of the barrel, and the head of the pull rod is held against the upper edge of the barrel to complete the assembly. The assembled pull nails are loaded into the nail gun. When the nail gun is used on two plate-like objects, the T-shaped head of the pull rod will first pass through the two plate-like objects, and the pull rod will be pulled back through the nail gun so that the head of the pull rod is squeezed into the tube of the sleeve, and then the upper edge of the tube expands outward and is riveted into the plate-like object. Then the pull rod can be pulled out of the sleeve, and the sleeve is riveted into the two plate-like objects to form a fixed.

However, during the riveting process, since the head of the pull rod is T-shaped and the head and the upper edge of the sleeve are parallel to each other, when the head is pulled back and hits the upper edge of the sleeve, the head is prone to break directly due to excessive impact force, so that the upper edge of the sleeve cannot be effectively deformed, and the sleeve cannot rivet the two plates into one. The head is also prone to breakage and remain inside the sleeve, so that the head will roll inside the sleeve, causing the two plates to be easily loosened, which may affect the fixing function of the sleeve.

Please refer to Figures 9 and 10, which are side cross-sectional views of the known pull rod before fixing and side cross-sectional views after fixing, which disclose a pull rod structure in which the head A11 and the rod body A12 of the pull rod A1 will not be broken and remain inside the tube A21 of the sleeve body A2. The fixing method of this pull rod is still to first load the pull rod into the nail gun (not shown in the figure), and then insert the pull rod sleeve A2 and the pull rod A1 from bottom to top into the salad hole B1 set in the two plate-shaped objects B, and then use the nail gun to pull the pull rod A1 back to make the pull rod A1 is separated from the sleeve A2. Since the straight cylindrical part A21 on the top of the sleeve A2 is not thick enough or the material is softer than the pull rod A1, when the head A11 of the pull rod A1 passes through the cylindrical part A21, the cylindrical part A21 flips outward (commonly known as blooming) and is compressed and deformed. Although the deformed cylindrical part A21 can fix the two plate-like objects B, when the two plate-like objects B are hit or vibrated, the thickness of the deformed cylindrical part A21 is not enough, which can easily cause the sleeve A2 to peel off or break after deformation, and then the two plate-like objects B are separated.

Therefore, how to solve the above-mentioned shortcomings and inconveniences is the direction that the relevant industry players are eager to study and improve.

Therefore, in view of the above problems and deficiencies, the inventor collected relevant information and, after multiple evaluations and considerations, designed the invention of this type of pin structure.

The main purpose of the present invention is to provide a pull-stud structure, comprising: a set, which includes a hollow tube with a through hole inside, a stopper extending outward from the bottom side of the hollow tube, and an expansion part on the top side of the hollow tube, the expansion part extends downward and converges to form a neck, the bottom side of the neck extends to the top side of the stopper; a pull rod, which includes a head, the bottom side of the head is narrowed and extended obliquely to form an impact part, and a pull rod extends from the bottom side of the impact part to penetrate into the through hole. A rod body is provided, and the impact part applies force to the expansion part so that the sleeve body moves vertically downward by a predetermined distance, and the head part passes through the through hole of the hollow tube so that the expansion part and the neck part are radially expanded and deformed laterally outward, and the expansion part and the neck part are not compressed or slightly compressed by the stress of the impact part, so as to be clamped at a preset first plate and a preset second plate, and the head part is not deformed or slightly deformed to be separated from the sleeve body. Since the expansion part and the neck of the sleeve have a predetermined thickness and hardness, the sleeve will not flip outward (commonly known as flower opening) or be compressed and deformed during the riveting process. At the same time, the head of the pull rod will not be deformed or separated from the rod body. The sleeve is riveted to the preset first and second plates to form a stable structure.

The secondary purpose of the present invention is that the expansion portion of the sleeve is an arc-shaped structure that gradually narrows downward.

Another purpose of the present invention is that the overall appearance of the head and the impact part of the pull rod is a disc-shaped structure that is flat and wide on the top and narrow on the bottom.

Another purpose of the present invention is that when the pull pin is combined with the preset first plate and the preset second plate, the preset first plate and the preset second plate are each provided with a symmetrical riveting through hole on the opposite outer sides, and the two riveting through holes are each inclined inwardly concave, and the stopper is supported against the riveting through hole of the preset second plate, and the impact part of the pull rod is pulled and supported at the same time so that the inner wall of the expansion part is expanded and deformed by stress, and its outer wall is supported against the riveting through hole of the preset first plate, and the expansion part and the stopper are formed into a riveted flat state at the riveting through holes on both sides of the preset first and second plates and form a fixed structure.

1: Body

10: Perforation

11: Hollow tube

111: Expansion Department

112: Neck

12: Stopper

2: Pull rod

21: Head

211: Impact part

22: Rod body

3: Body

31: Hollow tube

311: Expansion Department

312: oblique extension

32: Stopper

4: Pull rod

41: Head

411: Impact part

42: Rod body

5: Body

51:Hollow tube

511: Expansion Department

512: Neck

513: oblique extension

52: Stopper

6: Default first plate

60: Riveting and piercing

7: Default second board

70: Riveting and piercing

A1: Pull rod

A11:Head

A12: Rod body

A2: Housing

A21: Barrel

B: Plate-like objects

B1: Salad hole

[Figure 1] is a three-dimensional external view of the first implementation structure of the pull pin of the present invention.

[Figure 2] is a three-dimensional exploded view of the first implementation structure of the pull tab of the present invention.

[Figure 3] is a side cross-sectional view of the first implementation structure of the pull pin of the present invention before being fixed.

[Figure 4] is a side cross-sectional view of the first implementation structure of the pull pin of the present invention after being fixed.

[Figure 5] is a side view of the second implementation structure of the pull pin of the present invention.

[Figure 6] is a side view of the third implementation structure of the pull pin of the present invention.

[Figure 7] is a side view of the fourth embodiment of the pull pin of the present invention.

[Figure 8] is a side cross-sectional view of the fourth embodiment of the pull pin of the present invention.

[Figure 9] is a side cross-sectional view of the known pull pin before fixation.

[Figure 10] is a side cross-sectional view of the known pin after fixation.

In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the present invention are described in detail in the following figure for the preferred embodiment of the present invention to fully understand its features and functions.

Please refer to Figures 1 to 4, which are the three-dimensional appearance diagram, three-dimensional exploded diagram, side cross-sectional diagram before fixation and side cross-sectional diagram after fixation of the first implementation structure of the pull pin of the present invention. It can be clearly seen from the figures that the pull pin structure of the present invention includes: a sleeve 1 and a pull rod 2, and its main components and features are described as follows: the sleeve 1 includes a hollow tube 11 with a through hole 10 inside, and a stopper 12 is extended outward from the bottom side of the hollow tube 11, and an expansion portion 111 is provided on the top side of the hollow tube 11. The expansion portion 111 extends downward and converges to form a neck 112, and the bottom side of the neck 112 extends to the top side of the stopper 12.

The pull rod 2 includes a head 21, and a striking portion 211 is narrowed and extended obliquely at the bottom of the head 21. A rod 22 is extended from the bottom of the striking portion 211 and penetrates the through hole 10. The striking portion 211 applies force to the expansion portion 111 to move the sleeve 1 vertically downward by a predetermined distance, and the head 21 passes through the through hole 10 of the hollow tube 11 to make the sleeve 1 move vertically downward by a predetermined distance. The expansion portion 111 and the neck portion 112 are radially expanded and deformed laterally outward, and the expansion portion 111 and the neck portion 112 are not compressively deformed or slightly compressively deformed by the stress of the impact portion 211, so as to be locked at a preset first plate 6 and a preset second plate 7, and the head portion 21 is not deformed or slightly deformed to be separated from the sleeve 1.

The expansion portion 111 of the sleeve 1 is an arc-shaped structure that gradually narrows downward, and the head portion 21 and the impact portion 211 of the pull rod 2 have an overall appearance similar to a spherical structure.

When the pull pin is combined with the preset first plate 6 and the preset second plate 7, the preset first plate 6 and the preset second plate 7 are respectively provided with a symmetrical riveting through hole (60, 70) on the relative outer sides, and the two riveting through holes (60, 70) are each inclined inwardly concave structures, and the blocking piece 12 is supported on the riveting through hole 70 of the preset second plate 7. , and the impact part 211 of the pull rod 2 is pulled and supported at the same time so that the inner wall of the expansion part 111 is expanded and deformed by stress, and its outer wall is supported on the riveted through hole of the preset first plate 6, and the expansion part 111 and the stop plate 12 are riveted flat at the riveted through holes (60, 70) on both sides of the preset first and second plates (6, 7) to form a fixed structure.

Please refer to Figures 3 and 4. When the pull pin of the present invention is actually used, the pull pin is first loaded into a nail gun (not shown in the figure), and the pull pin sleeve 1 and the pull rod 2 are inserted from bottom to top into the riveting holes (60, 70) set in the first and second plates (6, 7). The impact part 211 of the pull rod 2 applies force to the expansion part 111 to move the sleeve 1 vertically downward by a predetermined distance, and the head The expansion portion 111 and the neck portion 112 are radially deformed laterally outward through the through hole 10 of the hollow tube 11, and the expansion portion 111 and the neck portion 112 are not compressively deformed or slightly compressively deformed by the stress of the impact portion 211, so as to be locked at the preset first plate 6 and the preset second plate 7, and the head portion 21 is not deformed or slightly deformed to be separated from the sleeve 1. Since the expansion portion 111 and the neck portion 112 of the sleeve 1 have a predetermined thickness and hardness, the sleeve 1 will not flip outward (commonly known as flower opening) or be compressed and deformed during the riveting process. At the same time, the head portion 21 of the pull rod 2 will not be deformed or separated from the rod body 22. The sleeve 1 is riveted to the preset first and second plates (6, 7) to form a stable structure.

Please refer to Figures 5 and 6, which are side views of the second and third implementation structures of the pull pin of the present invention, respectively. As can be seen from Figure 5, the overall appearance of the head 21 and the impact portion 211 of the pull rod 2 is still the same as the first implementation structure, which is a spherical structure; in contrast, Figure 6 discloses another pull rod 4 structure, and the overall appearance of the head 41 and the impact portion 411 of the pull rod 4 is a disc-shaped structure that is flat and wide on the top and narrowed on the bottom. However, the sleeve 3 is slightly different from the first embodiment, and the structure and features of the sleeve 3 are described in detail as follows: the sleeve 3 includes a hollow tube 31 with a through hole (not shown) inside, a stopper 32 extending outward from the bottom of the hollow tube 31, and an expansion portion 311 extending downward and gradually expanding to form an oblique extension portion 312, and the bottom side of the oblique extension portion 312 extends to the top side of the stopper 32.

Please refer to Figures 7 and 8, which are the side view and the side cross-sectional view of the fourth embodiment of the pull pin of the present invention, respectively. The pull rod 4 of the fourth embodiment is the same as that disclosed in Figure 6, but the sleeve 5 is slightly different from the aforementioned disclosed structure. The structure and features of the pull rod 4 and the sleeve are described in detail as follows: The sleeve 5 includes a hollow tube 5 having a through hole (not shown) inside. 1. A stopper 52 is extended outward from the bottom of the hollow tube 51, and an expansion portion 511 is provided on the top of the hollow tube 51. The expansion portion 511 extends downward and gradually expands to form an oblique extension portion 513. The bottom of the oblique extension portion 513 extends to the top of the stopper 52, and the hollow tube 51 has a narrow neck portion 512 between the expansion portion 511 and the oblique extension portion 513.

The pull rod 4 includes a head portion 41, and a striking portion 411 is narrowed and extended obliquely at the bottom side of the head portion 41. A rod body 42 is extended from the bottom side of the striking portion 411 and penetrates the through hole. The striking portion 411 applies force to the expansion portion 511 to make the sleeve 5 move vertically downward a predetermined distance, and the head portion 41 passes through the through hole of the hollow tube 51 to make the expansion portion 511 radially expand and deform laterally outward, and the expansion portion 511 does not produce compressive deformation or slightly compressive deformation due to the stress of the striking portion 411, so as to be clamped at a preset first plate 6 and a preset second plate 7, and the head portion 41 is in an undeformed or slightly deformed state to detach from the sleeve 5.

The expansion portion 511 of the sleeve 5 is a straight cylindrical structure in the upper half, and an arc-shaped structure that gradually narrows downward in the lower half.

The overall appearance of the head 21 and the impact part 211 of the pull rod 2 is similar to a spherical structure (as disclosed in the first figure above); or the overall appearance of the head 41 and the impact part 411 of the pull rod 4 is a disc-shaped structure that is flat and wide at the top and narrow at the bottom. Whether it is the first type of pull rod 2 with a spherical structure or the second type of pull rod 4 with a disc-shaped structure, both are feasible structures, and the present invention is not limited to this.

When the above-mentioned rivet is combined with the preset first plate 6 and the preset second plate 7, the preset first plate 6 and the preset second plate 7 are each provided with a symmetrical riveting through hole (60, 70) on the relative outer sides, and the two riveting through holes (60, 70) are each inclined inwardly concave structures, and the stopper 52 is supported on the riveting through hole 70 of the preset second plate 7 , and the impact part 411 of the pull rod 4 is pulled and supported at the same time so that the inner wall of the expansion part 511 is expanded and deformed by stress, and its outer wall is supported on the riveted through hole of the preset first plate 6, and the expansion part 511 and the stopper 52 are riveted flat at the riveted through holes (60, 70) on both sides of the preset first and second plates (6, 7) to form a fixed structure.

The main technical feature of the invention is that the expansion part and the neck of the sleeve have a predetermined thickness and hardness, which can prevent the sleeve from flipping outward (commonly known as blooming) and compression deformation during the riveting process. At the same time, the head of the pull rod will not be deformed or separated from the rod body, and the sleeve is riveted to the preset first and second plates to form a stable structure. The invention is extremely practical in the field of plate fixing, so a patent application is filed to seek patent protection.

The above is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Therefore, all simple modifications and equivalent structural changes made by using the contents of the present invention's specification and drawings should be included in the patent scope of the present invention and should be stated.

In summary, the above-mentioned pull pin structure of this invention can truly achieve its effect and purpose when used. Therefore, this invention is truly a creation with excellent practicality. In order to meet the application requirements of invention patents, an application is filed in accordance with the law. I hope that the review committee will approve this case as soon as possible to protect the inventor's hard work. If the review committee of the Jun Bureau has any doubts, please feel free to write to instruct. The inventor will do his best to cooperate and will be grateful for the convenience.

1: Body

10: Perforation

11: Hollow tube

111: Expansion Department

112: Neck

12: Stopper

2: Pull rod

21: Head

211: Impact part

22: Rod body

Claims (6)

A pull-stud structure includes: a sleeve, which includes a hollow tube with a through hole inside, a stopper extending outward from the bottom of the hollow tube, and an expansion portion on the top of the hollow tube, the expansion portion extends downward and converges to form a neck, the bottom of the neck extends to the top of the stopper, and the expansion portion of the sleeve is an arc-shaped structure that gradually narrows downward; and a pull rod, which includes a head, the bottom of the head narrows and extends obliquely to form an impact portion, and a through hole extends from the bottom of the impact portion. A rod is inserted into the through hole, and the impact part applies force to the expansion part to make the sleeve body move vertically downward a predetermined distance, and the head passes through the through hole of the hollow tube to make the expansion part and the neck radially expand and deform transversely outward, and the expansion part and the neck are subjected to the stress of the impact part without compressive deformation or slightly compressive deformation, so as to be locked at a preset first plate and a preset second plate, and the head is in a non-deformed or slightly deformed state to detach from the sleeve body. The pull rod structure as described in claim 1, wherein the overall appearance of the head and the impact part of the pull rod is similar to a spherical structure; or the overall appearance of the head and the impact part of the pull rod is a disc-shaped structure that is flat and wide on the top and narrow on the bottom. As described in claim 1, the pull-stud structure, wherein when the pull-stud is combined with the preset first plate and the preset second plate, the preset first plate and the preset second plate are each provided with a symmetrical riveting through hole on the opposite outer sides, and the two riveting through holes are each inclined inwardly concave, and the stopper is supported against the riveting through hole of the preset second plate, and the impact part of the pull rod is pulled and supported at the same time so that the inner wall of the expansion part is expanded and deformed by stress, and its outer wall is supported against the riveting through hole of the preset first plate, and the expansion part and the stopper are formed into a riveted flat state at the riveting through holes on both sides of the preset first and second plates and form a fixed structure. A pull-stud structure comprises: a sleeve body, which comprises a hollow tube with a through hole inside, a stopper extending outwardly from the bottom side of the hollow tube, and an expansion part on the top side of the hollow tube, the expansion part extends downward and gradually expands to form an oblique extension part, the bottom side of the oblique extension part extends to the top side of the stopper, the expansion part of the sleeve body is a straight tube structure in the upper half, and the lower half is an arc structure that gradually narrows downward; and a pull rod, which comprises a head, and the bottom side of the head is narrowed and obliquely extended to form a bump The impact part has a rod extending from the bottom side of the impact part and penetrating the through hole. The impact part applies force to the expansion part to make the sleeve body move vertically downward by a predetermined distance, and the head part passes through the through hole of the hollow tube to make the expansion part radially expand and deform outward in a transverse direction. The expansion part is subjected to the stress of the impact part without compressive deformation or slightly compressive deformation, so as to be locked at a preset first plate and a preset second plate, and the head part is in a non-deformed or slightly deformed state to detach from the sleeve body. The pull rod structure as described in claim 4, wherein the overall appearance of the head and the impact part of the pull rod is similar to a spherical structure; or the overall appearance of the head and the impact part of the pull rod is a disc-shaped structure that is flat and wide on the top and narrow on the bottom. The pull-stud structure as described in claim 4, wherein the hollow tube has a narrow neck between the expansion portion and the oblique extension portion.

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