TWI852775B - High-speed internal dental nail with a self-expanding gasket - Google Patents

Abstract

A high-speed internal dental nail with a self-expanding gasket, including a main body, a nail shooting unit and a gunpowder unit. The main body includes a nail tube and an expansion pad body. The nail tube surrounds a first space and includes a threaded portion. The expansion pad body extends gradually and integrally from the nail tube along a working direction and defines a second space. The second space is connected to the first space. The nail is inserted into the nail tube along the working direction. The nail includes a connected nail head and a nail body. The nail head is located in the first space, and the nail body passes through the second space from the first space. The gunpowder unit is accommodated in the first space.

Description

High-speed internal threaded screw with expansion pad

The present invention relates to a high-speed internal dental nail with an expansion pad, and in particular to a high-speed internal dental nail with an expansion pad.

The steel beam nail hanging pieces on the commonly used steel structure buildings are mostly implemented with a low-speed gunpowder nailing tool (commonly known as a low-speed gun 6). A piston rod 61 is provided inside the gun body. When the low-speed gun 6 is used, the piston rod 61 is driven forward by the explosion of the nailing bullet 62, and then the steel beam nail 7 is pushed through the piston rod 61 and driven into the base material, such as a cement wall or steel.

The nail rod 72 of the conventional beam nail 7 has a surface with straight, diagonal and cross patterns. During construction, the beam nail 7 is pushed into the steel material by the piston rod 61 of the gunpowder nailing tool (low-speed gun 6). When the nail tip of the nail rod 72 enters the steel beam surface for a short distance, the nail tip will be subjected to extremely high resistance due to the high density of the steel material. At the same time, the nail head 71 of the beam nail 7 is subjected to strong extrusion from the piston rod 61. Often, the two forces cannot withstand the interaction, so the nail head 71 of the steel beam nail 7 is often broken, and the middle part of the nail rod 72 is squeezed and broken, and the construction defect rate is very high. In particular, after each low-speed gun 6 has been used for a long time, the front end of the piston rod 61 and the high-hardness nail head 71 of the steel beam nail 7 will present an uneven slope after long-term collision, thereby greatly increasing the probability of the nail head 71 breaking, as shown in Figures 10 to 13.

The above-mentioned loss caused by the poor construction is not just the breaking of a steel beam nail 7, but also includes the matching hanging piece and the high-cost nail bullet 62 used for firing the steel beam nail 7 each time. Therefore, each failure to fire the steel beam nail 7 will cause a substantial increase in the construction cost of the project.

Therefore, it is necessary to provide a novel and progressive high-speed internal threaded screw with an expansion pad to solve the above-mentioned problems.

The main purpose of the invention is to provide a high-speed internal threaded screw with a built-in expansion pad. The overall structure is simple, which can effectively save unnecessary iron waste and improve the optimal design of drawing strength. Under the global common goal of saving energy, saving carbon and saving the earth, the use of each high-speed internal threaded screw can reduce the use of more than 58% of iron ore and more than 30% of copper ore.

To achieve the above-mentioned purpose, the present invention provides a high-speed internal threaded nail with an expansion pad, comprising: a main body, a nail and a powder unit. The main body includes a nail tube and an expansion pad, the nail tube encloses a first space and includes a threaded portion, the expansion pad gradually extends from the nail tube along a working direction and defines a second space, the second space is connected to the first space; the nail is inserted into the nail tube along the working direction, the nail includes a nail head and a nail body connected to each other, the nail head is located in the first space, and the nail body is inserted from the first space into the second space; the powder unit is accommodated in the first space.

The following examples are merely used to illustrate possible implementations of the present invention, but are not intended to limit the scope of protection of the present invention. The "one" or "at least one" preceding the terms mentioned in the text does not limit the quantity, and it can also be "plural" according to needs. This change in quantity is also within the scope of protection, which should be explained in advance.

Please refer to FIG. 1 to FIG. 9 , which show an embodiment of the present invention. The high-speed internal nail with an expansion pad of the present invention comprises: a main body 1, a nail 2 and a powder unit 3.

The main body 1 includes a nail tube 11 and an expansion pad 18. The nail tube 11 encloses a first space 12 and includes a threaded portion 13. When the high-speed internal nail with the expansion pad is driven into the substrate, the threaded portion 13 can be screwed with objects to facilitate hanging, fixing and supporting various objects. The expansion pad 18 gradually extends from the nail tube 11 along a working direction 4 and defines a second space 19. The second space 19 is connected to the first space 12. In this embodiment, the expansion pad 18 is a hollow cone, and in the working direction 4, the length of the expansion pad 18 is less than the length of the nail tube 11, so that the nail 2 can definitely protrude from the expansion pad 18 for easy alignment.

The nail 2 is inserted into the nail tube 11 along the working direction 4. The nail 2 and the nail tube 11 are preferably coaxially arranged. When the high-speed internal nail with its own expansion pad is driven into the substrate, the nail 2 can evenly provide support force to the nail tube 11 to bear the weight of the object. Specifically, the nail 2 includes a connected nail head 21 and a nail body 22. The nail head 21 is located in the first space 12, and the nail body 22 is inserted from the first space 12 into the second space 19 for insertion into the substrate. When the nail 2 is driven into the substrate along the working direction 4, the nail head 21 will pull the main body toward the substrate, and the nail head 21 will force the expansion pad 18 to be tightly against the substrate, so that the main body 1 is stably positioned on the substrate and cannot rotate relative to the substrate.

The gunpowder unit 3 is accommodated in the first space 12 for detonating and driving the nail 2. It is worth mentioning that the impact force generated by the explosion of the gunpowder unit 3 directly acts on the nail 2. Compared with the traditional method, this driving method can save the shell material and processing cost of the nail bullet, and can reduce the impact loss of the piston rod, so it can effectively reduce the construction cost.

It is worth mentioning that the nail 2 driven directly by the explosion of the powder unit 3 has a high ejection speed and impact force, so it can effectively drive into a substrate with a relatively hard material hardness (such as steel). After actual tests, the success rate of driving into steel beams is as high as more than 95%. In addition, the expansion pad 18 sandwiched between the nail head 21 and the substrate will expand and deform accordingly as the depth of the nail body 22 penetrates into the substrate (that is, the magnitude of the explosion impact of the powder unit 3 is different), thereby appropriately and evenly distributing the impact force to the substrate to produce a buffering effect, thereby achieving the purpose of preventing the nail 2 from penetrating the substrate.

The gunpowder unit 3 includes a gunpowder body 31 and a gunpowder barrel 32, the gunpowder body 31 is accommodated in the gunpowder barrel 32, and the gunpowder barrel 32 is positioned in the first space 12. In this embodiment, the gunpowder body 31 is solid gunpowder, the material of the gunpowder barrel 32 is plastic, and the gunpowder barrel 32 is tightly fitted against an inner wall surface 16 surrounding the first space 12; wherein the threaded portion 13 is arranged on the inner wall surface 16, and the portion of the inner wall surface 16 corresponding to the nail head 21 is a non-threaded portion 17.

When the high-speed internal threaded nail with its own expansion pad is assembled on a gun barrel 51 of a gunpowder gun 5, the nail tube 11 abuts against the wall of the gun barrel 51, and the side of the gunpowder barrel 32 facing away from the nail 2 is provided to abut against a firing pin sleeve 52, and the side of the gunpowder barrel 32 facing away from the nail 2 is further provided with a groove 33, and the groove 33 is provided for a firing pin 53 to strike to ignite the gunpowder body 31.

Preferably, in the radial direction of the nail tube 11, the expansion pad 18 does not exceed the nail tube 11 so as not to affect the tightness between the nail tube 11 and the wall of the gun barrel 51, so that the impact force generated by the explosion of the gunpowder unit 3 can surely push the nail 2 to move.

Specifically, the nail tube 11 further includes a top portion 14 and a body portion 15, the body portion 15 protrudes transversely from one side of the top portion 14, the expansion pad 18 protrudes transversely from the other side of the top portion 14, and the nail head 21 is clamped between the top portion 14 and the gunpowder unit 3; wherein the body portion 15 is cylindrical, and the top portion 14 is inclined and gradually contracted from the body portion 15 along the working direction 4. More specifically, the length of the body portion 15 is more than twice the length of the gunpowder cartridge 32, so that the body portion 15 can provide sufficient space for the user to change the dosage of the gunpowder body 31, thereby changing the explosion impact force to adjust the depth of the nail body 22 into the substrate.

Preferably, the wall thickness of the top portion 14 is greater than the wall thickness of the expansion pad 18, so that the top portion 14 has better structural strength to withstand the pressure from the nail head 21, and the thicker top portion 14 can prevent the nail 2 from penetrating the substrate and disperse the stress, while the relatively thin expansion pad 18 is conducive to deformation and adhesion to the substrate. The ratio of the wall thickness of the top portion 14 to the wall thickness of the expansion pad 18 is, for example but not limited to, at least greater than 1.5, so as to take into account the local structural strength, deformation capacity and material usage. Similarly, the wall thickness of the top portion 14 is greater than the wall thickness of the body 15.

Prior art 6: Low-speed gun 61: Piston rod 62: Nail bullet 7: Steel beam nail 71: Nail head 72: Nail rod The present invention 1: Main body 11: Nail tube 12: First space 13: Threaded part 14: Top part 15: Body 16: Inner wall surface 17: Non-threaded part 18: Expansion pad 19: Second space 2: Nail 21: Nail head 22: Nail body 3: Gunpowder unit 31: Gunpowder body 32: Gunpowder cartridge 33: Groove 4: Working direction 5: Gunpowder gun 51: Gun barrel 52: Firing pin sleeve 53: Firing pin

Figure 1 is a three-dimensional diagram of an embodiment of the present invention. Figure 2 is an exploded view of Figure 1. Figure 3 is another perspective view of Figure 2. Figure 4 is a cross-sectional view of Figure 1. Figure 5 is a cross-sectional view of the main body of an embodiment of the present invention. Figure 6 is a schematic diagram of the use of an embodiment of the present invention. Figure 7 is a schematic diagram of a high-speed internal dental nail with a self-expanding pad driving into steel in an embodiment of the present invention. Figure 8 is another schematic diagram of a high-speed internal dental nail with a self-expanding pad driving into steel in an embodiment of the present invention. Figure 9 is a schematic diagram of a high-speed internal dental nail with a self-expanding pad driving into cement in an embodiment of the present invention. Figure 10 is a schematic diagram of the use of a known low-speed gun in conjunction with a hanging piece. Figure 11 is a schematic diagram of the steel beam nail of Figure 10 being broken. Figure 12 is a schematic diagram of the steel beam nail head being broken due to the uneven piston rod of the known low-speed gun. Figure 13 is a schematic diagram of the steel beam nail rod being broken due to the uneven piston rod of the known low-speed gun.

1: Subject

11: Nail the pipe

18: Expanding pad

19: Second Space

22: Nail the body

Claims (10)

A high-speed internal threaded nail with an expansion pad includes: a main body, including a nail tube and an expansion pad, the nail tube encloses a first space and includes a threaded portion, the expansion pad gradually extends from the nail tube along a working direction and defines a second space, the second space is connected to the first space; a nail, inserted into the nail tube along the working direction, including a connected nail head and a nail body, the nail head is located in the first space, and the nail body is inserted from the first space into the second space; and a gunpowder unit, accommodated in the first space. A high-speed internal nail with a built-in expansion pad as described in claim 1, wherein the gunpowder unit includes a gunpowder body and a gunpowder cartridge, the gunpowder body is contained in the gunpowder cartridge, and the gunpowder cartridge is positioned in the first space. As described in claim 2, the high-speed internal dental nail with its own expansion pad, wherein the nail tube further includes a top portion and a body portion, the body portion protrudes laterally on one side of the top portion, and the expansion pad protrudes laterally on the other side of the top portion. A high-speed internal screw with an expansion pad as described in claim 3, wherein the wall thickness of the top is greater than the wall thickness of the expansion pad body. A high-speed internal screw with an expansion pad as described in claim 3, wherein the body is cylindrical and the top is inclined and gradually contracted from the body along the working direction. A high-speed internal nail with a built-in expansion pad as described in claim 3, wherein the nail head is clamped between the top and the gunpowder unit. A high-speed internal nail with a built-in expansion pad as described in claim 1, wherein the expansion pad is a hollow cone. A high-speed internal nail with a built-in expansion pad as described in claim 1, wherein the expansion pad does not extend beyond the nail tube in the radial direction of the nail tube. A high-speed internal nail with a built-in expansion pad as described in any one of claims 1 to 8, wherein the nail and the nail tube are coaxially arranged. The high-speed internal threaded nail with expansion pad as described in claim 4, wherein the body is cylindrical, the top is inclined and gradually contracted from the body along the working direction; the nail head is clamped between the top and the gunpowder unit; the expansion pad is a hollow cone; in the radial direction of the nail tube, the expansion pad does not exceed the nail tube; the nail and the nail tube are coaxially arranged; the gunpowder body is solid gunpowder; the material of the gunpowder cartridge is plastic; the gunpowder cartridge is tightly fitted against an inner wall surface surrounding the first space; the ratio of the wall thickness of the top to the wall thickness of the expansion pad is at least greater than 1.5; the threaded portion is On the inner wall surface, the portion of the inner wall surface corresponding to the nail head is a non-threaded portion; the length of the body is more than twice the length of the gunpowder barrel; the wall thickness of the top is greater than the wall thickness of the body; when the high-speed internal thread nail with its own expansion pad is assembled on a barrel of a gunpowder gun, the nail barrel abuts against the wall surface of the barrel, the side of the gunpowder barrel facing away from the nail is provided to abut against a firing pin sleeve, and the side of the gunpowder barrel facing away from the nail is further concavely provided with a groove, and the groove is provided for a firing pin to strike to ignite the gunpowder body; in the working direction, the length of the expansion pad is less than the length of the nail barrel, and the nail protrudes out of the expansion pad.

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