TW202244404A - Rivet capable of fixing the head of the rivet left after the fractured part is broken, preventing the head from falling inside the workpiece, and saving the construction work and time for recovering the dropped head - Google Patents

Abstract

The present invention relates to a rivet including a pulling rod and a sleeve, wherein the sleeve is a tube body having a first hole passing through the first plate and a second hole passing through the second plate, and a through hole longitudinally penetrates inside the tube body. There is a stop body extended outward from one end of the tube body and stopped on the second plate. The upper edge of the tube body abuts against the head of the pulling rod. An offset surface that tapers inwards and then expands outwards is extended from one side of the head. There is a rod body extending under one side of the head and penetrating into the through hole. When the pulling rod is pulled down, the inner wall surface of the sleeve will be squeezed and deformed by the pulling and driving force of a nail gun to be stuck on the concave offset surface so as to fix the head of the rivet left after the fractured part is broken, prevent the head from falling inside the workpiece that may affect the quality of the object, and save the construction work and time for recovering the dropped head.

Description

Rivet

The present invention provides a pull rivet, especially the head side of the pull rod is extended with a resisting surface that tapers inwards and then expands outwards. When the pull rod is pulled downward, the perforated inner wall of the tube will move Stretch outwards and then squeeze and deform inwards to form a clamp, so that the broken head is positioned inside the perforation, so as to save the increased working time and labor costs for recycling or removing the dropped head.

Press, at present there are many ways to join between plates, the more common ones are: welding, screw locking, sticking, or pulling rivets, etc. Among them, the pulling rivets are filled in the nail gun, and the nails are used to To rivet the two plates with a nail gun, you can first use a nail gun to shoot through the two plates, and then pull out the rod body of the rivet, so that the sleeve of the rivet can be deformed to rivet the two plates. This enables the two plates to be firmly combined into one.

However, as shown in Figure 14, after the generally used pull stud A fixes the second plate B, the head A1 of the pull stud A structure is likely to break directly due to the excessive force of the impact, so that the pipe body A2 The edge cannot be effectively deformed, and the head A1 falls inside the component or outside the second plate B. It takes a lot of manpower and time to recover the dropped head A1, which causes extra trouble and waste.

Therefore, how to solve the deficiency and inconvenience of the above-mentioned common usage is the direction that the related industry engaged in this industry eagerly wants to study and improve.

Therefore, in view of the above shortcomings, the inventor collected relevant information, and after various evaluations and considerations, he designed the invention patent of this type of pull rivet.

The main purpose of the present invention is that the casing is a pipe body that passes through the first hole of the first plate and the second hole of the second plate, and a through hole is longitudinally penetrated inside the pipe body, and one end of the pipe body There is a stop body extending outward for stopping on the second plate, and then the upper edge of the pipe body abuts against the head of the pull rod, and a rod body extending from the head side for penetrating into the perforation, the The top of the head extends downwards and has a resisting surface that tapers inwards and then expands outwards. When the rod body of the pull rod is pulled down, the inner wall of the tube will be supported outwards along the guidance of the resisting surface. Open, so that the inner wall of the tube is squeezed and deformed inwardly, and clamped on the concave abutment surface, so as to achieve the purpose of the head clamping and positioning inside the perforation.

The secondary purpose of the present invention is that the bottom edge of the abutting surface of the pull rod is protruded with an arc-shaped clamping body that is larger than the shaft diameter of the rod body and smaller than the head, so that the head can be clamped through the clamping body. On the inner wall of the tube, so as to prevent the head from falling out of the tube body and fall inside the workpiece, and prevent external dust, debris or air from entering the inside, and also achieve the purpose of increasing the strength of the rivet.

Another object of the present invention is that the head of the pull rod extends downwards with a lip, and the lip has a thickness so that the head can bear the impact force at the upper edge of the pipe body and avoid deformation of the head. situation.

Another object of the present invention is to extend downwards at the top of the pull rod head and taper inwards and expand outwards. The abutting surface can be inverted L-shaped, with an included angle greater than 90 degrees and less than 180 degrees. The planes and joints are arc-shaped two planes or a single arc.

1: Tie rod

11: head

111: lips

112: Resistance surface

1121: card body

12: rod body

13: Fracture

2: Casing

21: tube body

210: perforation

22: stop body

3: The first plate

31: The first hole

4: Second plate

41: Second Hole

5: Working platform

50: die hole

51: Fixture

510: Inner mold hole

A: pull stud

A1: head

A2: tube body

B: Plate

[Fig. 1] is a three-dimensional appearance view of the present invention.

[Fig. 2] is a three-dimensional appearance view of another perspective of the present invention.

[Fig. 3] is a three-dimensional exploded view of the present invention.

[Fig. 4] is a three-dimensional exploded view of another perspective of the present invention.

[Fig. 5] is a side view of the present invention.

[Fig. 6] is a side sectional view when the present invention is assembled.

[Fig. 7] is a side view sectional view before the use of the present invention.

[Fig. 8] is a side sectional view when the present invention is in use.

[Fig. 9] is a side view sectional view after the use of the present invention.

[Fig. 10] is a side view of another embodiment of the present invention.

[Fig. 11] is a side sectional view of another embodiment of the present invention before use.

[Fig. 12] is a side view of another embodiment of the present invention.

[Fig. 13] is a side sectional view of another embodiment of the present invention before use.

[Fig. 14] is a side sectional view of a conventional pull rivet after use.

In order to achieve the above-mentioned purpose and effect, the technical means and the structure adopted by the present invention are hereby illustrated in detail with respect to the preferred embodiments of the present invention. Its features and functions are as follows, so that it can be fully understood.

Please refer to Figures 1, 2, 3, 4, and 5. It can be clearly seen from the figures that the pull rivet system of the present invention includes a pull rod 1 and a sleeve 2, wherein:

The pull rod 1 has an expanded head 11, and a rod extends on one side of the head 11. body 12, and the top of the head 11 extends downwards with a lip 111 having a thickness, and then downwardly from the lip 111 there is an abutment surface 112 that tapers inwards and then expands outwards, and the abutment surface 112 can be It is arc-shaped or inverted L-shaped, and the bottom edge of the abutting surface 112 is protruded with an arc-shaped clamping body 1121 that is larger than the shaft diameter of the rod body 12 and smaller than the head 11, and the rod body 12 is concavely set There is a broken portion 13 with a shaft diameter smaller than that of the clamping body 1121 .

The casing 2 has a hollow tube body 21, and a perforation 210 is longitudinally provided inside the tube body 21. The perforation 210 is matched for the tie rod 1 to pass through, and its inner diameter is smaller than the head 11 of the tie rod 1. The outer diameter of the pipe body 21 is extended outwardly from the bottom end of the pipe body 21, and there is a ring-shaped stop body 22 extending outward.

The above-mentioned casing 2 is preferably made of a metal material (such as: aluminum, copper, steel or iron, etc.), and the tie rod 1 can be made of a metal material (such as: aluminum, copper, steel or iron, etc.), And the hardness of the casing 2 is less than that of the tie rod 1 .

Furthermore, the outer diameter of the clamping body 1121 of the pull rod 1 is slightly larger than the diameter of the through hole 210 of the tube body 21 .

When the present invention is actually assembled, please refer to Figures 1, 2, 3, 4, 5, and 6 again. The tube body 21 of the sleeve 2 can pass through the perforation 210 to provide the rod body 12 of the pull rod 1 from top to bottom. At this time, the tie rod 1 and the sleeve 2 can be placed on the work platform 5. In order to use the die hole 50 for the rod body 12 of the tie rod 1 to penetrate, when stamping and assembling, the jig 51 is stamped to the working platform. On the platform 5, the internal mold hole 510 that matches the jig 51 tapered inward from the opening is aligned against the head 11 of the tie rod 1. During the stamping process, the jig 51 tapers inward The die hole 510 is pressurized on the outer wall of the pipe body 21, so that the pressurized inner wall of the pipe body 21 is squeezed inwardly and embedded on the outer surface of the arc-shaped clamping body 1121, so that the head 11 of the tie rod 1 is resisted. Lean on the upper edge of the pipe body 21 to complete the assembly of the present invention.

Please refer to the 1st, 2nd, 5th, 7th, 8th, and 9th figures again, it can be clearly seen from the figure that when the present invention intends to combine the first sheet material 3 and the second sheet material 4, the system can first of the present invention The pull nail is installed on the nail gun (not shown in the figure), and through the nail gun, the tube body 21 of the sleeve 2 and the head 11 of the pull rod 1 pass through the corresponding positions of the first plate 3 and the second plate 4. In the first hole 31 and the second hole 41, make the stop body 22 of the sleeve 2 lean against the bottom surface of the second plate 4, and then use a nail gun to apply force to the rod body 12 of the pull rod 1 to pull it down. , and then the head 11 of the pull rod 1 is pulled down. When the pull is pulled, because the outer diameter of the clamping body 1121 at the bottom edge of the abutting surface 112 of the pull rod 1 is slightly larger than the diameter of the through hole 210 of the tube body 21, so The inner wall surface of the perforated hole 210 of the tube body 21 will be stretched and expanded outwards along the guiding effect of the arc-shaped clamping body 1121, and when it is pulled down, the outer diameter of the head 11 is larger than that of the clamping body 1121. diameter, the upper edge of the pipe body 21 will hit the abutting surface 112 of the head 11 again to stretch and expand outward again. At this time, when the upper edge of the pipe body 21 hits the head 11 again, the pipe body will The inner wall surface of 21 is squeezed and deformed inward, so that the inner wall surface of the tube body 21 is clamped on the concave abutment surface 112, so that the head 11 can be completely embedded in the inner wall surface of the upper edge of the perforation 210, and the tube body 21 The inner wall surface of the body 21 is squeezed by the clamping body 1121 and deformed inward at the same time, so that the inner wall surface of the pipe body 21 is clamped under the clamping body 1121, so that the head 11 can be completely embedded in the inner wall surface of the upper edge of the perforation 210 At the upper edge of the pipe body 21, another stop body 22 will be formed against the top surface of the first plate 3, and then another stop body 22 of the pipe body 21 will be used to press against the surface of the first plate 3 At the same time, pull the pull rod 1 out of the casing 2, the fractured part 13 will break and the head 11 will be broken in the perforation 210, so that the first plate 3 and the second plate 4 are combined and positioned, and then the pull rod 1 is pulled outwards from the sleeve 2, so as to be firmly riveted on the first plate 3 and the second plate 4 through the sleeve 2 to form a position, and the lip 111 of the head 11 has a thickness to bear Hit the impact force at the upper edge of the tube body 21, thereby avoiding the deformation of the head 11, thereby completing the use of the present invention.

Please refer to Figures 7, 8, 9, 10, 11, 12, and 13. It can be clearly seen from the figures that the lip 111 of the tie rod 1 is continuously tapered downwards and then expanded outwards. backing surface 1 12. A clamping body 1121 larger than the shaft diameter of the rod body 12 but smaller than the head 11 protrudes from the surface of the abutment surface 112, and the abutment surface 112 is in an inverted L shape or has an included angle greater than 90 degrees and less than 180 degrees The two planes, the abutment surface 112 of the pull rod 1 in another embodiment of the present invention is two planes, and the connection between the two planes is arc-shaped, and the abutment surface 112 of the pull rod 1 in another embodiment of the present invention is a single concave arc Faceted.

After the first plate 3 and the second plate 4 are firmly riveted in the present invention, the head 11 of the tie rod 1 is fixed inside the perforation 210 of the sleeve 2, so the perforation 210 of the sleeve 2 cannot communicate with the first plate. 3 and the two outer sides of the second plate 4 can prevent external dust or sundries from entering the interior, and if the interior requires air convection or vacuum effects and other environmental requirements, such as computers or machines, etc., it can also prevent external air from passing through. The perforation 210 enters the interior and affects the original design of the air environment. For example, the convection route designed inside the computer is affected by the external air entering the perforation 210 to produce turbulent flow. In addition, because the interior of the perforation 210 of the sleeve 2 is not hollow, but is clamped and fixed There is a head 11 of the pull rod 1, and the strength of the solid head 11 is much greater than the hollowed-out perforation 210, so the head 11 which is originally useless can increase the strength of the pull rivet.

The present invention has the following advantages:

(1) The head 11 of the pull rod 1 is downwardly connected with a resisting surface 112 that tapers inwards and then expands outwards. When the rod body 12 of the pull rod 1 is pulled down, the inner wall of the pipe body 21 will be squeezed inward. Compression deformation, so that the inner wall surface is clamped on the concave abutment surface 112, and the head 11 is broken and clamped inside the perforation 210, so as to fix the rivet head 11 left after the broken part is broken, and prevent the head from 11 falls inside the workpiece, which affects the quality of the object and saves the engineering and time of recovering the dropped head 11.

(2) The bottom edge of the resisting surface 112 is protruded with an arc-shaped clamping body 1121 that is larger than the shaft diameter of the rod body 12 and smaller than the head 11. When the rod body 12 of the pull rod 1 is pulled down, it will Tube 21 The inner wall surface is extruded and deformed inward, so that the clamping body 1121 is clamped on the inner wall of the pipe body 21, and the head 11 is broken and clamped inside the perforation 210, so as to prevent the head 11 from falling inside the workpiece.

(3) When the nail gun pushes the rod body 12 of the pull rod 1 downward and pulls it, the upper edge of the pipe body 21 will hit the head 11, so that the thick lip 111 can withstand the impact on the upper edge of the pipe body 21 impact force to avoid deformation of the head 11, so that the head 11 can be securely clamped inside the perforation.

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 description and drawings of the present invention should be included in the same reasoning. Within the scope of the patent of the present invention, I agree with Chen Ming.

To sum up, when the pull rivet of the present invention is used, in order to achieve its efficacy and purpose, the present invention is a creation with excellent practicability. In order to meet the requirements for the application of the invention patent, an application is filed in accordance with the law, and I hope the review committee Approval of this case will be granted as soon as possible to protect the hard work of the inventor. If the jury committee has any doubts, please feel free to send a letter for instructions. The inventor will do his best to cooperate.

1: Tie rod

11: head

111: lips

112: Resistance surface

1121: card body

12: rod body

13: Fracture

2: Casing

21: tube body

22: stop body

Claims (7)

A pull stud, including a pull rod and a sleeve, wherein: The casing is a pipe body that passes through the first hole of the preset first plate and the second hole of the preset second plate, and a perforation is provided longitudinally inside the pipe body, and then at the bottom of the pipe body. The outer expansion is extended with a stop body for stopping on the preset second plate; The pull rod has a head that stretches the upper edge of the sleeve pipe body outwards and presses it on the surface of the first predetermined plate, and is continuously tapered inwards and then expanded outwards on the head side. Squeeze the perforated inner wall of the pipe body to deform inwardly to form a clamping abutment surface, and then extend a rod body for penetrating into the perforation below the abutment surface; When in use, the head hits the upper edge of the pipe body, causing the inner wall of the pipe to be squeezed and deformed inwardly to be stuck on the concave resisting surface. The head can be completely embedded in the inner wall of the inner upper edge of the perforation. At the same time, the internal wall surface is squeezed by the clamping body and deformed inwardly, so that the inner wall surface of the tube is clamped under the clamping body, so that after the head is broken, it can be completely embedded in the inner wall surface of the inner upper edge of the perforation. As for the pull stud described in item 1 of the patent application, the abutment surface of the pull rod can be inverted L-shaped or two planes with an included angle greater than 90 degrees but less than 180 degrees. As for the pull stud described in item 1 of the scope of the patent application, the abutting surface of the pull rod can be two planes, and the connection between the two planes is arc-shaped. As for the pull stud described in item 1 of the scope of the patent application, the abutment surface of the pull rod can be in a concave arc shape. The pull stud described in item 1 of the scope of the patent application, wherein the bottom edge of the abutting surface of the pull rod protrudes from the bottom edge of the pull rod, which is larger than the shaft diameter of the rod body and smaller than the head, and is arc-shaped to be stuck on the inner wall of the tube. body, the outer diameter of the clamping body of the tie rod is slightly larger than the hole diameter of the tube body, and the tube body At the same time, the wall surface is squeezed by the clamping body and deformed inwardly, so that the inner wall surface of the pipe is clamped under the clamping body. The pull stud described in item 1 of the scope of the patent application, wherein the rod body of the pull rod is concavely provided with a broken part with a shaft diameter smaller than that of the clamping body. The pull stud described in item 1 of the scope of the patent application, wherein the top end of the pull rod extends downwards to have a lip with a thickness to withstand the impact force and avoid deformation of the head.

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