TWM647806U - Powder cartridge for high-speed nail and high-speed nail including the same - Google Patents

Abstract

This invention relates to a powder cartridge for high-speed nailing and a high-speed nail including the same. The powder cartridge for high-speed nails is used for a high-speed nail. The high-speed nail includes a connected nail body and a set. The gunpowder cartridge for high-speed nails includes a first cylinder and a second cylinder. The first cylinder is inserted into an end of the set away from the nail body. An end of the first cylinder away from the nail body is provided with a groove. The bottom of the groove protrudes in a direction away from the nail body. convex part. The second cylinder is a plastic part. An opening is provided at one end facing the convex portion. A propellant is contained in the second cylinder. The second cylinder is contained in the groove and the convex portion passes through the opening. Stretch into the second cylinder.

Description

Powder cartridges for high-speed nails and high-speed nails including the same

This invention relates to a powder cartridge for high-speed nailing and a high-speed nail including the same, and in particular to an improvement in the technical structure of a powder cartridge for high-speed nailing.

Generally speaking, nail guns are divided into gunpowder high-speed guns and gunpowder low-speed guns. Gunpowder low-speed guns use gunpowder to explode in the gunpowder chamber. The pressure of gas expansion pushes the piston rod to hit the nail body to drive out the nail body because the nail body is ejected. The speed and force are low, so it has high safety. The gunpowder low-speed gun is suitable for hitting softer materials, such as low-hardness cement (less than 3000 pounds) and calcium silicate board, but it is used for hitting steel or high-temperature materials. Harder materials such as hard concrete walls (more than 4,500 pounds) are more likely to fail; gunpowder high-speed guns directly drive the nail body when the gunpowder explodes, so the speed and force of the nail body are higher, and can be used to drive into steel. Or harder materials such as concrete walls, but they are highly dangerous and must be used with extreme caution. It is known that the high-speed nails used in high-speed guns are directly stuffed with magnesium nitrate at the bottom of the high-speed nails to ignite and explode. However, the ignition rate of this structure is Often insufficient.

Therefore, this invention provides a structural technical improvement of the powder barrel for high-speed nailing to enhance the use function of high-speed nailing.

The main purpose of this invention is to provide a powder cartridge for high-speed nails and a high-speed nail including the same, which can avoid damaging the structure of the high-speed nails and allow the propellant to detonate smoothly, and has a simple structure and is easy to install.

In order to achieve the above purpose, the invention provides a powder cartridge for high-speed nailing, which is used for a high-speed nail. The high-speed nail includes a connected nail body and a set. The gunpowder cartridge for high-speed nailing includes a first barrel and a set. a second cylinder. The first cylinder is inserted into an end of the set away from the nail body. An end of the first cylinder away from the nail body is provided with a groove. The bottom of the groove protrudes in a direction away from the nail body. convex part. The second cylinder is a plastic part. An opening is provided at one end facing the convex portion. A propellant is accommodated in the second cylinder. The second cylinder is accommodated in the groove and the convex portion passes through the opening. Stretch into the second cylinder.

In order to achieve the above purpose, the present invention also provides a high-speed nail, which includes a powder cartridge for high-speed nails as mentioned above, a nail body and a set. The set is connected to the nail body, the inner wall of the set is provided with an internal thread portion, and the first cylinder is inserted into an end of the set away from the nail body.

The following examples are only used to illustrate the possible implementation modes of this invention, but are not intended to limit the scope of protection sought by this invention, and are explained in advance.

Please refer to Figures 1 to 5, which show the first preferred embodiment of the present invention. The powder cartridge for high-speed nails of the present invention is used for a high-speed nail. The high-speed nail includes a connected nail body 91 and a set 92. The powder cartridge for high-speed nailing includes a first cylinder 2 and a second cylinder 3 .

The first cylinder 2 is inserted into an end of the sleeve 92 away from the nail body 91 . An end of the first barrel 2 away from the nail body 91 is provided with a receiving groove 21 . The bottom of the receiving groove 21 faces away from the nail body 91 . A convex portion 22 is protruding in the direction of the nail body 91 .

The second cylinder 3 is made of plastic. An opening 32 is provided at one end facing the convex portion 22 . A propellant 31 is accommodated in the second cylinder 3 . The second cylinder 3 is accommodated in the groove 21 And the protruding portion 22 extends into the second cylinder 3 through the opening 32 .

This invention also provides a high-speed nail, which includes a powder cartridge for high-speed nails as mentioned above, a nail body 91 and a set 92 . The set 92 is connected to the nail body 91. In this embodiment, the high-speed nail is an internal tooth nail. The inner wall of the set 92 is provided with an internal thread portion 93. The internal thread portion 93 is used for screwing with a fixed rod. For installing items such as light steel frames, the first cylinder 2 is inserted into an end of the sleeve 92 away from the nail body 91 .

Thereby, since the protrusion 22 extends into the second cylinder 3 through the opening 32, the protrusion 22 can press the propellant 31 to prevent the propellant 31 from moving and causing looseness, so it can be smoothly The propellant 31 is detonated to fire the high-speed nail, and since the kit 92 is indirectly connected through the first cylinder 2 and the second cylinder 3, when the propellant 31 in the second cylinder 3 detonates The assembly 92 will not be damaged, so the internal thread portion 93 can be prevented from being damaged.

Specifically, the first cylinder 2 is a plastic part. The first cylinder 2 includes a connected small portion 23 and a large portion 24. The small portion 23 is inserted into the set 92. A step portion 25 is formed between the large portion 24 and the small portion 23. The step portion 25 abuts the end face of the sleeve 92 for positioning. The small portion 23 is made of plastic material to avoid damaging the internal thread portion. 93.

Preferably, the axial length of the small section 23 is smaller than the axial length of the sleeve 92 to avoid filling up the inside of the sleeve 92. The axial size of the protrusion 22 is smaller than the annular wall of the second cylinder 3. half of the axial dimension to prevent the convex portion 22 from excessively pressing against the propellant 31 .

In this embodiment, the bottom of the container 21 is recessed with an annular groove 26, and the annular wall of the second cylinder 3 is inserted into the annular groove 26, which can further prevent the propellant 31 from being arbitrarily relative to the second cylinder. Cylinder 3 moves.

Furthermore, the end of the second cylinder 3 away from the nail body 91 is provided with a bottom wall 33. The bottom wall 33 is provided with a base powder 34 on one side facing the nail body 91. The base powder 34 is used for a nail gun. When the firing member hits a side of the bottom wall 33 away from the nail body 91 (not shown in the figure), it ignites, thereby detonating the propellant 31 . In this embodiment, the primer 34 is embedded in the bottom wall 33 . The bottom wall 33 is provided with a groove 35 on a side away from the nail body 91 . The groove 35 corresponds to the primer 34 . The groove 35 Its function is to reduce the thickness of the bottom wall 33 to smoothly ignite the primer 34.

In this embodiment, the bottom wall 33 is embedded in the container 21 to prevent the bottom wall 33 from being exposed. Please refer to Figures 6 to 7. In the second embodiment of the present invention, the bottom wall 33 is radially provided with an annular flange 331A, and the radial size of the annular flange 331A is greater than the radial size of the receiving groove 21, so that First, the ring flange 331A can position the first cylinder 2 .

Please refer to Figures 8 to 10. In the third embodiment of the present invention, the high-speed nail is a ceiling nail. The set 92B of the high-speed nail is not provided with internal threads and the axial length of the set 92B is longer than the first and second This embodiment is shorter, and the first cylinder 2 is inserted into the sleeve 92B. The rest of the structure of this embodiment is the same as that of the first embodiment, so no further description is given.

2: First cylinder 21: Container 22:convex part 23: Xiaoqi section 24: Daqi section 25:Stage 26: Ring groove 3: Second cylinder 31: propellant 32:Open your mouth 33: Bottom wall 331A: Ring flange 34: Primer powder 35: Groove 91: nail body 92:Kit 93: Internal thread part

Figure 1 is a perspective view of the first preferred embodiment of this invention. Figures 2 and 3 are exploded views of the first preferred embodiment of this invention. Figure 4 is a cross-sectional view of the first cylinder of the first preferred embodiment of the present invention. Figure 5 is a cross-sectional view of the first preferred embodiment of the present invention. Figure 6 is an exploded view of the second preferred embodiment of the present invention. Figure 7 is a cross-sectional view of the second preferred embodiment of the present invention. Figure 8 is a perspective view of the third preferred embodiment of this invention. Figure 9 is an exploded view of the third preferred embodiment of the present invention. Figure 10 is a cross-sectional view of the third preferred embodiment of the present invention.

2: First barrel

23: Small trail section

24: Large diameter section

3: Second cylinder

31: propellant

32:Open your mouth

91: nail body

92:Kit

Claims (12)

A powder cartridge for high-speed nails, which is used for a high-speed nail. The high-speed nail includes a connected nail body and a set, including: a first cylinder for insertion into an end of the set away from the nail body, the The first cylinder is provided with a receptacle at one end away from the nail body, and a convex portion is protruding from the bottom of the receptacle in a direction away from the nail body; a second cylinder is a plastic piece and faces one end of the convex portion. An opening is provided, a propellant is accommodated in the second cylinder, the second cylinder is accommodated in the groove, and the protrusion extends into the second cylinder through the opening. The gunpowder cartridge for high-speed nailing as described in claim 1, wherein the first cylinder is a plastic part, and the first cylinder includes a connected small section and a large section, and the small section is for insertion In the kit, a step is formed between the large section and the small section, and the step abuts the end surface of the kit. The powder cartridge for high-speed nailing as described in claim 2, wherein the axial length of the small section is smaller than the axial length of the set, and the axial size of the protrusion is smaller than the axial length of the annular wall of the second cylinder. Half the size. The gunpowder cartridge for high-speed nailing according to claim 1, wherein the bottom of the groove is recessed with an annular groove, and the annular wall of the second cylinder is inserted into the annular groove. The powder cartridge for high-speed nailing according to claim 1, wherein the inner wall of the kit is provided with an internal thread portion. The powder cartridge for high-speed nails as claimed in claim 1, wherein one end of the second barrel away from the nail body is provided with a bottom wall, and a bottom wall is provided on one side of the bottom wall toward the nail body. The powder cartridge for high-speed nailing as described in claim 6, wherein the base powder is buried in the bottom wall. The powder cartridge for high-speed nails as claimed in claim 7, wherein the bottom wall is further provided with a groove on a side away from the nail body, and the groove corresponds to the primer powder. The powder cartridge for high-speed nailing as described in claim 6, wherein the bottom wall is embedded in the groove. The gunpowder cartridge for high-speed nailing as described in claim 3, wherein the bottom of the groove is recessed with an annular groove, and the annular wall of the second cylinder is inserted into the annular groove; the inner wall of the set is provided with There is an internal thread part; the end of the second cylinder away from the nail body is provided with a bottom wall, and a bottom gunpowder is provided on one side of the bottom wall facing the nail body; the bottom gunpowder is buried in the bottom wall; the bottom wall is away from the One side of the nail body is also provided with a groove, which corresponds to the bottom gunpowder; the bottom wall is embedded in the container. The gunpowder cartridge for high-speed nailing as described in claim 3, wherein the bottom of the groove is recessed with an annular groove, and the annular wall of the second cylinder is inserted into the annular groove; the inner wall of the set is provided with There is an internal thread part; the end of the second cylinder away from the nail body is provided with a bottom wall, and the bottom wall is provided with a bottom gunpowder on one side facing the nail body; the bottom gunpowder is buried in the bottom wall; the bottom wall is away from the One side of the nail body is also provided with a groove, which corresponds to the base powder; the bottom wall is provided with an annular flange in the radial direction, and the radial size of the annular flange is greater than the radial size of the receiving groove. A high-speed nail, including a powder cartridge for high-speed nails as described in any one of claims 1 to 11, and further including: a nail body; a set connected to the nail body, and the inner wall of the set is provided with a The internal thread portion, the first barrel is inserted into an end of the set away from the nail body.

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