TWM631325U - Board to board fixture - Google Patents

Abstract

The present invention is a board-to-board fixing device, comprising: a set including a hollow tube with a perforation inside, a blocking piece extending outwardly from the bottom side of the hollow tube, and a blocking piece on the blocking piece An action space communicated with the through hole is formed inside, and an expansion part is formed on the top side of the hollow tube; a pull rod includes a head, and a striking part is formed on the bottom side of the head narrowed and obliquely extended, A deformation portion protruding outward from the bottom side of the impact portion can be pressed against the top side of a preset rivet gun sleeve at the action space to generate deformation, and the bottom side of the deformation portion has a breaking portion with a smaller diameter and a rod body extending obliquely outward from the bottom side of the breaking part and penetrating into the through hole and the action space through the expansion part of the sleeve body.

Description

Board to Board Fixtures

This creation is about a board-to-board fixing device, especially a pull rod with an impact part and a deformation part. When the pull rod is pulled back and hits the upper edge of the hollow tube by a preset rivet gun, the pull rod is not easy to The expansion part of the hollow tube produces rotation without counteracting the pull-down force, so as to facilitate the smooth riveting operation. At the same time, the deformation part has the effect of strengthening the head structure of the tie rod, so that the impact part of the tie rod can be pulled back and hit. When the upper edge of the hollow tube is placed, the head will not break.

According to the press, there are many ways to join and fix the board to the board. The common ones are: welding, cementing, screw locking or rivet fixing. Among them, the way to implement the rivet fixing is to first fill the rivet gun in the rivet gun. , When using the preset rivet gun to riveted the two plates, the two plates can be shot through the rivet gun, and then the rod body of the pull stud can be pulled out, so that the sleeve body of the pull stud can be deformed and riveted. The two plate-shaped objects are closed together, thereby making the two plate-shaped objects firmly integrated into one body.

However, the commonly used pull stud structure includes a pull rod and a sleeve body, and the pull rod has a T-shaped head, and a rod body extends from one end of the head, and the sleeve body has a hollow tube body, and then at the end of the head. One end of the tube body extends outward with a ring-shaped resisting body, and the rod body of the pull rod can pass through the inside of the tube body, and the head of the pull rod is pressed against the upper edge to complete the assembly, and the assembly can be pulled back The nails are loaded in the rivet gun, and when the rivet gun is used on two plates, the T-shaped head of the pull rod The part will first pass through the two plates, and then pull the pull rod back through the rivet gun, so that the head of the pull rod is squeezed into the tube body of the sleeve body, and then the upper edge of the tube body expands outward and is riveted to the plate. Then, the pull rod can be pulled out to the outside of the sleeve, and the two plates can be riveted into one body through the sleeve.

However, during the aforementioned riveting process, since the head of the tie rod is T-shaped from a side view angle, the head and the upper edge of the tube body of the sleeve are parallel to each other, so that when the head is pulled back, it hits the tube. At the upper edge of the body, the tie rod is prone to rotate on the upper edge of the tube body to offset part of the pulling force, and the user must spend more time operating the riveting gun to perform the riveting operation. Furthermore, the T-shaped structure of the head of the tie rod is too thin, so that when the head is pulled back and hits the upper edge of the tube body, the head is broken, so that the upper edge of the tube body cannot be effectively deformed, and the sleeve body The two plates cannot be surely riveted together. In addition, the T-shaped head is easily broken and left inside the tube body, and the left head will slip inside the tube body, resulting in the looseness of the combined state of the two plates, which may affect the sleeve body. performance or quality.

Therefore, how to solve the above-mentioned deficiencies and inconveniences is the direction of research and improvement that the relevant practitioners in this industry are eager to study and improve.

Therefore, in view of the above problems and deficiencies, the creator collected relevant information, and after multiple evaluations and considerations, the creation of this board-to-board fixture was born.

The present invention is mainly a board-to-board fixing device, comprising: a set including a hollow tube with a perforation inside, a stopper piece extending outwardly from the bottom side of the hollow tube, and a stopper piece on the stopper piece An action space communicated with the through hole is formed inside, and an expansion part is formed on the top side of the hollow tube; a pull rod includes a head, and a striking part is formed on the bottom side of the head narrowed and obliquely extended, A predetermined rivet protrudes outward from the bottom side of the impact portion and can be connected to the action space The top side of the gun sleeve is pressed against a deformed portion that produces deformation. The bottom side of the deformed portion has a broken portion with a smaller diameter. The bottom side of the broken portion extends from the bottom side of the broken portion with the expansion portion extending obliquely outward through the sleeve body. A rod body penetrating the through hole and the action space. Due to the arrangement of the impact part and the deformation part of the tie rod, when the preset rivet gun is used to operate the tie rod to pull back and hit the upper edge of the hollow tube, the tie rod is not easy to rotate at the expansion part of the hollow tube and will not offset the pull-down. At the same time, the deformation part has the effect of strengthening the head structure of the tie rod, so that when the impact part of the tie rod is pulled back and hits the upper edge of the hollow tube, the head will not break. Happening.

The secondary purpose of this creation is that the diameter and length of the outer wall of the hollow tube of the sleeve body are in the range of 2.9~3.2mm (mm) and the diameter and length of the inner wall are in the range of 2.2~2.4mm (mm); the hollow tube The height range from the top side to the bottom side of the stop piece is 2~3mm (mm); the height range from the junction of the hollow tube and the stop piece to the bottom side of the stop piece is 0.7~0.9mm (mm) ); the vertical height range of the outer wall of the bottom side of the stop piece is 0.2~0.4mm (mm) and the vertical height range of the inner wall is 0.2~0.5mm (mm); the diameter and length of the bottom side of the outer wall of the stop piece It is 4.9~5.1mm (mm) and the diameter and length of the inner wall of the bottom side is 3.05~3.25mm (mm).

Another purpose of this creation is that the diameter and length of the top surface of the head of the pull rod are in the range of 2.9~3.2mm (mm), and the height range from the top side of the head to the bottom side of the deformation portion is 1~2mm (mm) , the diameter and length of the bottom surface of the deformed part range from 2.2 to 2.4 mm (millimeters).

Another purpose of the present creation is that the action space is a cylindrical space with a top side chamfered, and the angle of the top side chamfer of the action space ranges from 60 degrees to 120 degrees.

Another object of the present creation is that a ring-shaped abutting surface on the top side of the preset rivet gun sleeve is inserted into the blocking piece of the sleeve body, so that the action space inside the blocking piece presents "︹" The cylindrical space of the shape, the cylindrical space in the shape of "︹" is the deformation part of the pull rod The space filled by the deformation is generated.

A further object of the present invention is that the angle of the striking portion of the pulling rod extending obliquely upward toward the head is in the range of 60 degrees to 120 degrees.

Another object of the present invention is that the annular outer surface of the deformation part is formed with plural straight-line teeth, multiple horizontal-line teeth, plural oblique cross-shaped teeth or multiple microstructures of various geometric shapes that are engaged with the inner wall of the hollow tube .

1: body

11: Hollow tube

110: perforation

12: Stopper

120: Action Space

13: Expansion Department

2: Pull rod

21: Head

22: Impact Department

23: Deformation Department

231: straight tooth flower

232: horizontal stripe flower

24: Fractures

25: Rod body

3: Rivet gun socket

31: Resist Surface

4: The first plate

40: Riveting perforation

5: Second plate

50: Riveting perforation

L1: The diameter and length of the outer wall of the hollow tube

L2: The diameter and length of the inner wall of the hollow tube

L3: Diameter length of the bottom side of the outer wall of the stopper

L4: Diameter length of the inner wall of the bottom side of the stopper

L5: The diameter and length of the top surface of the head

L6: Diameter and length of the bottom surface of the deformed part

H1: The height from the top side of the hollow tube to the bottom side of the stopper

H2: The height from the junction of the hollow tube and the stopper to the bottom side of the stopper

H3: The vertical height of the outer wall of the bottom side of the stopper

H4: The vertical height of the inner wall of the bottom side of the stopper

H5: Height from the top side of the head to the bottom side of the deformed part

θ 1: Angle of chamfer on the top side of the action space

θ 2: The angle at which the impact part extends upward toward the head

[Picture 1] is the three-dimensional appearance view of the pull stud created by this work.

[Picture 2] is a three-dimensional exploded view of the pull stud in this creation.

[Picture 3] is another three-dimensional exploded view of the pull stud in this creation.

[Picture 4] is a cross-sectional view of the first operation of the pull stud used for fixing two boards.

[Picture 5] is a sectional side view of the second operation of the pull stud used to fix the two plates.

[Picture 6] is a cross-sectional view of the third operation of the pull stud used for fixing two boards.

[Picture 7] is a sectional side view of the fourth operation of the pull stud used for fixing two boards.

[Picture 8] is a sectional side view of the fifth operation of the pull stud used for fixing two boards.

[Picture 9] is a side sectional view of this creative kit.

[Picture 10] is a side view of the pull rod of this creation.

[Fig. 11] is a diagram of the first embodiment of increasing the occlusal force of the deformed part of the tie rod of this creation.

[Fig. 12] is a diagram of the second embodiment of increasing the occlusal force of the deformed part of the tie rod of this creation.

Please refer to Figures 1 to 4, 9, and 10, each of which is the three-dimensional appearance of the pull stud. Figure, three-dimensional exploded view, another three-dimensional exploded view, the first operation side sectional view of the pull nail used to fix the two plates, the side sectional view of the sleeve body and the side view of the pull rod, it can be clearly seen from the figures that this The creative pull stud is composed of a metal material, and the metal material is one of aluminum, copper, iron or stainless steel, and the pull stud includes a body 1 and a pull rod 2, the detailed structure and connection of the aforementioned components The relationship is as follows:

The sleeve body 1 includes a hollow tube 11 with a through hole 110 inside, a stopper piece 12 extending outward from the bottom side of the hollow tube 11 , and a stopper piece 12 communicating with the through hole 110 is formed inside the stopper piece 12 . An action space 120 has an expansion portion 13 on the top side of the hollow tube 11 .

The pull rod 2 includes a head portion 21 , and a striking portion 22 is formed on the bottom side of the head portion 21 by narrowing and obliquely extending, and a predetermined rivet can be protruded outward from the bottom side of the striking portion 22 and can be connected to the action space 120 . The top side of the gun sleeve 3 is pressed against a deformed portion 23 which is deformed. The bottom side of the deformed portion 23 has a broken portion 24 with a smaller circular diameter. The expansion portion 13 of the body 1 penetrates the through hole 110 and a rod body 25 of the action space 120 .

The actuating space 120 of the casing 1 is a cylindrical space whose top side is chamfered, and the angle θ1 of the top side chamfering of the actuating space ranges from 60 degrees to 120 degrees.

The above-mentioned preset rivet gun sleeve 3 has a ring-shaped abutting surface 31 on the top side and is inserted into the stopper piece 12 of the sleeve body 1 , so that the action space 120 inside the stopper piece 12 presents "︹" The cylindrical space in the shape of “︹” is the space filled by the deformation of the deformation portion 23 of the pull rod 2 .

The overall appearance of the head portion 21 and the impact portion 22 of the tie rod 2 is a circular dish-shaped structure with a wide upper portion and a narrow lower portion, and the overall appearance of the deformed portion 23 is an upside-down bowl with a narrow upper portion and a lower width. type structure, and the range of the angle θ2 at which the striking portion 22 of the pulling rod 2 extends upward toward the head portion 21 is 60 degrees to 120 degrees.

In order to make the thin plate with the total thickness of the preset first plate 4 and the preset second plate 5 between 1.6~2.4mm (mm) in the limited operating space, the pull studs (fasteners) can be tightened to the maximum extent. Strength (meaning tensile force and shear resistance), so the following dimensions are limited, the outer wall diameter L1 of the hollow tube 11 of the sleeve body 1 is in the range of 2.9~3.2mm (mm) and its inner wall The diameter and length L2 range from 2.2 to 2.4 mm (mm); the height H1 from the top side of the hollow tube 11 to the bottom side of the blocking piece 12 ranges from 2 to 3 mm (mm). The range of height H2 from the junction of the stop piece 12 to the bottom side of the stop piece 12 is 0.7~0.9mm (mm); the range of the vertical height H3 of the outer wall of the bottom side of the stop piece 12 is 0.2~0.4mm (mm) and The vertical height H4 of the inner wall is in the range of 0.2~0.5mm (mm); the diameter and length L3 of the bottom side of the outer wall of the stopper 12 is in the range of 4.9~5.1mm (mm), and the diameter and length L4 of the bottom side of the inner wall is in the range of 3.05~3.25mm (mm).

The diameter length L5 of the top surface of the head 21 of the above-mentioned pulling rod 2 is in the range of 2.9~3.2 mm (mm), and the height H5 of the top side of the head 21 to the bottom side of the deformation portion 23 is in the range of 1~2 mm (mm). ), the diameter and length L6 of the bottom surface of the deformation portion 23 are in the range of 2.2 to 2.4 mm (millimeters).

Please refer to Figures 11 and 12, which are the first and second embodiments of the deformed portion of the drawing rod to increase the occlusal force, wherein the annular outer surface of the deformed portion 23 of the tie rod 2 is formed to snap on the hollow The inner wall of the tube 11 has a plurality of straight toothed flowers 231, a plurality of horizontal toothed flowers 232, a plurality of oblique crossed toothed flowers (not shown in the figure) or a plurality of microstructures of various geometric shapes (circular, oval, triangular or rectangular) ( (not shown in the figure), for example, a reinforced occlusal shape or structure can be formed on the surface of the deformed portion 23 of the pull rod 2, all within the scope of protection of the present creation, so that the pull rod 2 can be inserted into the sleeve body 1 to rive the two plates. There is no rotation, which offsets the pulling force toward the preset rivet gun sleeve 3, so that the riveting process is more labor-saving and has the function of high efficiency.

When the pull stud is combined with a predetermined first plate 4 and a predetermined second plate 5, the predetermined first plate 4 and the predetermined second plate 5 each have a symmetrical riveting on the opposite outer side. Perforations (40, 50), and the two riveting perforations (40, 50) are each inclined inwardly recessed, and the blocking piece 12 abuts against the riveting perforations 50 of the second plate 5, and the pull rod The striking portion 22 of 2 is pulled and supported at the same time so that the inner wall of the expansion portion 13 is expanded and deformed under stress, and the outer wall of the impact portion 22 is supported against the riveting hole 40 of the first plate 4 , the expansion portion 13 and the stopper The riveting holes ( 40 , 50 ) on the two sides of the predetermined first and second plates ( 4 , 5 ) of the stop piece 12 form a riveted flat state and form a fixed structure.

Please refer to Figures 4 to 8, which are the first, second, third, fourth, and fifth operation side sectional views of the pull studs used to fix the two boards. When the second plate 5 is preset, the preset first plate 4 and the preset second plate 5 are respectively recessed with a symmetrical riveting through hole (40, 50) on the opposite outer side, and the two riveting through holes (40, 50) ) are inclined inwardly concave structure, and the outer side of the blocking piece 12 is against the riveting hole 50 of the second plate 5, and then the rod body 25 of the pull rod 2 is passed through the top side of the expansion part 13 of the sleeve body 1, Then apply force from top to bottom on the head 21 of the tie rod 2 to make the rod body 25 protrude from the bottom side of the stopper 12 of the sleeve body 1, and then the end of the rod body 25 can be inserted into the preset rivet holster The clamping opening of the cylinder 3 is fixed (as shown in Figure 4), and then the preset rivet gun (not shown in the figure) is operated to generate a downward pulling force on the pull rod 2, so as to make the impact part 22 of the pull rod 2 Press against the top side of the expansion part 13 of the sleeve body 1 , and continue to operate the preset rivet gun to generate a depression stress on the impact part 22 of the pull rod 2 , and the depression stress generated by the impact part 22 causes the inner wall of the expansion part 13 to be affected by the pull rod 2 . The expansion and deformation of the resisting stress (as shown in FIG. 5), and the tension rod 2 is deformed when it is pressed against the abutting surface 31 on the top side of the preset rivet gun sleeve 3 during the pulling process, so that the deformed portion 23 is deformed. Generate deformation and fill in the action space 120 in the shape of "︹" (as shown in Fig. 6), continue to operate the preset rivet gun. The pull rod 2 can be pulled downwards, so that the fragile deformation part 23 and the fractured part 24 can be fractured and separated, so that the rod body 25 of the pull rod 2 can be pulled away from the sleeve body 1 (as shown in Fig. 7). ) to complete the riveting structure of the preset first and second plates (4, 5), and then the preset rivet gun sleeve 3 is detached from the action space 120 of the sleeve body 1 (as shown in Fig. 8), then Complete the riveting work of this creation.

From the disclosure of the above-mentioned Figures 1 to 12, it can be understood that the present invention is a board-to-board fixing device, including: a set including a hollow tube with a perforation inside, and a bottom side of the hollow tube is There is a blocking piece extending outwardly, an action space communicated with the through hole is formed inside the blocking piece, and an expansion part is provided on the top side of the hollow tube; a pull rod includes a head, which is located in the The bottom side of the head narrows and extends obliquely to form an impact portion, and a deformation portion protrudes outward from the bottom side of the impact portion and can be pressed against the top side of a preset rivet gun sleeve to generate deformation at the action space. The bottom side of the deforming portion has a breaking portion with a smaller diameter, and extending from the bottom side of the breaking portion is a rod body extending obliquely outward and penetrating the through hole and the action space through the expanding portion of the sleeve body. Due to the arrangement of the impact part and the deformation part of the tie rod, when the preset rivet gun is used to operate the tie rod to pull back and hit the upper edge of the hollow tube, the tie rod is not easy to rotate at the expansion part of the hollow tube and will not offset the pull-down. At the same time, the deformation part has the effect of strengthening the head structure of the tie rod, so that when the impact part of the tie rod is pulled back and hits the upper edge of the hollow tube, the head will not break. Happening. This creation is applied in the field of two-plate riveting, and has excellent practicability, so a patent application is filed to seek patent protection.

The above is only the preferred embodiment of this creation, and therefore it limits the scope of the patent of this creation. Therefore, any simple modifications and equivalent structural changes made by using the contents of the description and drawings of this creation should be included in the same description. Within the scope of the patent of this creation, I agree to Chen Ming.

To sum up, when the above board-to-board fixing device is used in this creation, it is true that It can achieve its effect and purpose, so this creation is a creation with excellent practicality. In order to meet the application requirements for a new type of patent, the application should be filed according to law. If the bureau review committee has any doubts, please do not hesitate to send a letter for instructions, and the creators will do their best to cooperate.

1: body

11: Hollow tube

110: perforation

12: Stopper

120: Action Space

13: Expansion Department

2: Pull rod

21: Head

22: Impact Department

23: Deformation Department

24: Fractures

25: Rod body

3: Rivet gun socket

31: Resist Surface

4: The first plate

40: Riveting perforation

5: Second plate

50: Riveting perforation

Claims (10)

A board-to-board fixing device, comprising: A set includes a hollow tube with a perforation inside, a blocking piece extending outwardly from the bottom side of the hollow tube, an action space communicating with the perforation is formed inside the blocking piece, and having an expansion portion on the top side of the hollow tube; and A tie rod includes a head, and a striking part is formed on the bottom side of the head narrowing and obliquely extending, and a bottom side of the striking part protrudes outwardly with a preset rivet gun sleeve top at the action space. The side presses against a deformed portion that is deformed, and the bottom side of the deformed portion has a broken portion with a smaller diameter. Extending from the bottom side of the broken portion is an outward obliquely extending through the through hole through the expansion portion of the sleeve body. and a rod body of the action space. The board-to-board fixing device as claimed in claim 1, wherein the overall appearance of the head portion and the impact portion of the tie rod is a disc-shaped structure with a wide upper portion and a narrow lower portion. The board-to-board fixing device according to claim 1, wherein the overall appearance of the deformed portion is an upside-down bowl-shaped structure with a narrow upper portion and a lower width. The board-to-board fixing device as claimed in claim 1, wherein the action space of the sleeve body is a cylindrical space with a top side chamfered, and an angle of the top side chamfer of the action space ranges from 60° to 120° Spend. The board-to-board fixing device as claimed in claim 1, wherein the top side of the preset rivet gun sleeve has a ring-shaped abutting surface that penetrates the blocking piece of the sleeve body, so that the blocking piece is inside The action space is a cylindrical space in the shape of "︹", and the cylindrical space in the shape of "︹" is the space filled by the deformation of the deformation part of the pull rod. The board-to-board fixture of claim 1, wherein the striking portion faces upwardly The angle range of the oblique extension is 60 degrees to 120 degrees. The board-to-board fixing device according to claim 1, wherein when the pull stud is combined with a predetermined first board and a predetermined second board, the predetermined first board and the predetermined second board are on opposite sides Each concave is provided with a symmetrical riveting through hole, and the two riveting through holes are inclined inwardly concave structure, the blocking piece is supported on the riveting through hole of the second plate, and the impact portion of the tie rod is At the same time, pull and support to make the inner wall of the expansion part expand and deform under stress, and the outer wall of the expansion part is supported against the riveting hole of the first plate. The riveted perforations on both sides of the plate form a riveted flat state and form a fixed structure. The board-to-board fixing device as claimed in claim 1, wherein the annular outer surface of the deforming portion is formed with a plurality of straight tooth patterns, a plurality of horizontal tooth patterns, and a plurality of oblique cross tooth patterns engaged with the inner wall of the hollow tube Or complex microstructures of various geometric shapes. The board-to-board fixing device according to claim 1, wherein the diameter and length of the outer wall of the hollow tube of the sleeve body are in the range of 2.9-3.2 mm (mm) and the diameter and length of the inner wall are in the range of 2.2-2.4 mm (mm) mm); the height range from the top side of the hollow tube to the bottom side of the stop piece is 2~3mm (mm); the height range from the junction of the hollow tube and the stop piece to the bottom side of the stop piece is 0.7~0.9mm (mm); the vertical height range of the outer wall of the bottom side of the stopper is 0.2~0.4mm (mm) and the vertical height range of its inner wall is 0.2~0.5mm (mm); the stopper piece The diameter and length of the bottom side of the outer wall is 4.9~5.1mm (mm) and the diameter and length of the inner wall of the bottom side is 3.05~3.25mm (mm). The board-to-board fixing device as claimed in claim 1, wherein the diameter and length of the top surface of the head of the tie rod is 2.9-3.2 mm (mm), and the height range from the top side of the head to the bottom side of the deformation part is 1~2mm (mm), the diameter and length of the bottom surface of the deformed part range from 2.2 to 2.2. 4mm (mm).

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