Noise-reducing canopy nails

Abstract

This invention proposes a noise-reducing canopy nail that can be installed in a gunpowder gun and impacts with gunpowder. The canopy nail has a nail body, a stopper, and a buffer. The nail body has a pointed end, a tail end, and a middle section. The pointed end and the tail end are opposite ends, and the middle section is located between the pointed end and the tail end. The diameter of the pointed end is smaller than the diameter of the middle section, and the diameter of the middle section is smaller than the diameter of the tail end. The stopper is fitted onto the nail body and is located between the pointed end and the middle section. The buffer is made of flame-retardant material. The buffer is fitted onto the middle section of the nail body and abuts against the tail end, and is located between the tail end of the nail body and the stopper. The buffer has a plurality of protrusions. The protrusions are spaced apart from each other and surround the nail body. The protrusions make the surface of the buffer uneven, thereby achieving a noise reduction effect when the gunpowder explodes.

Description

[Technical Field]

[0001] This work is about a canopy nail, specifically a canopy nail used in gunpowder guns. [Previous Technology]

[0002] During construction and renovation work, workers need to look up and raise their hands to manually fix the ceiling with screws or nails. This not only causes inconvenience in the work, but may also lead to occupational injuries in the long run. Therefore, a gunpowder gun was developed, with a canopy nail 90 installed at the front end of the gunpowder gun, as shown in Figure 6. The canopy nail 90 is fired by the gunpowder in the gunpowder gun, fixing the canopy nail 90 to the ceiling.

[0003] However, when gunpowder ignites the canopy nail at 90 degrees, the gunpowder explodes, producing a loud noise and sparks. Excessive noise can damage the user's hearing. In addition, the sparks and flashes can damage the user's vision. [Summary of the Invention]

[0004] This invention proposes a noise-reducing canopy nail that can be installed in a gunpowder gun and can reduce the noise generated during gunpowder explosion.

[0005] The noise-reducing canopy nail proposed in this invention has: a nail body having: a tip; a tail end relative to the tip; a middle section located between the tip and the tail end; the diameter of the tip is smaller than the diameter of the middle section, and the diameter of the middle section is smaller than the diameter of the tail end; a blocking member fitted onto the nail body and located between the tip and the middle section of the nail body; a buffer member made of flame-retardant material; the buffer member fitted onto the middle section of the nail body and abutting against the tail end, and the buffer member located between the tail end of the nail body and the blocking member; the buffer member has: a plurality of protrusions spaced apart from each other and respectively surrounding the nail body.

[0006] The advantage of this invention is that when the gunpowder in the gunpowder gun explodes, the buffer can absorb the sound waves generated by the explosion, thus achieving a noise reduction effect. In addition, the buffer can prevent sparks from flying out of the gunpowder gun. In this way, the buffer can prevent the user from suffering hearing or vision damage due to prolonged use of the gunpowder gun.

[0007] The noise-reducing canopy nail as described above, wherein: the buffer has: a first segment that is close to the tip of the nail body and abuts against the blocking member; a second segment that is close to the tail end of the nail body and abuts against the tail end; a third segment that is located between the first segment and the second segment; the convex portions are formed in the first segment, the second segment and the third segment.

[0008] As described above, the noise-reducing canopy nail has a recess facing the tail end of the nail body; the first section of the buffer is disposed in the recess, and each of the protrusions on the first section abuts against the inner wall of the recess.

[0009] As described above, the thickness of each protrusion is the distance from the top of each protrusion to the nail body; the thickness of each protrusion on the first segment is greater than the thickness of each protrusion on the third segment.

[0010] As described above, the canopy nail that can reduce noise, wherein the width of each of the protrusions is the distance between the tops of two adjacent protrusions; the width of each of the protrusions located on the second segment is greater than the width of each of the protrusions located on the third segment.

[0011] As described above, the noise-reducing canopy nail has two impact portions formed at the tail end, and the two impact portions are symmetrical.

Implementation Method

[0012] Please refer to Figures 1 to 5. This invention proposes a noise-reducing canopy nail that can be installed in a gunpowder gun and detaches from the gunpowder gun by impacting the gunpowder in the gunpowder gun. The canopy nail has a nail body 10, a blocking member 20 and a buffer member 30.

[0013] The nail body 10 has a tip 11, a tail end 12, a middle section 13, and two impact portions 14. The tip 11 and the tail end 12 are opposite ends of the nail body 10, and the middle section 13 is located between the tip 11 and the tail end 12. The diameter of the tip 11 is smaller than the diameter of the middle section 13, and the diameter of the middle section 13 is smaller than the diameter of the tail end 12. The impact portions 14 are formed at the tail end 12 and protrude away from the tip 11, and the two impact portions 14 are symmetrical. When the canopy nail is installed in a gunpowder gun, the impact portions 14 face the gunpowder. Through the impact portions 14, the impact with the gunpowder causes the gunpowder to explode, thereby causing the canopy nail to be fired and detached from the gunpowder gun.

[0014] The blocking member 20 is sleeved on the nail body 10 and located between the tip 11 and the middle section 13 of the nail body 10. In this embodiment, the blocking member 20 has a recess 21 facing the tail end 12 of the nail body 10. The inner diameter of the recess 21 is equal to or greater than the diameter of the tail end 12 of the nail body 10. In other embodiments, the blocking member 20 may be a disc or have an extended iron sheet, which is a common structure of commercially available canopy nails, so the detailed structure and function will not be described in detail.

[0015] The buffer 30 is made of flame-retardant material. The buffer 30 is sleeved on the middle section 13 of the nail body 10 and abuts against the tail end 12, and the buffer 30 is located between the tail end 12 of the nail body 10 and the blocking member 20. The buffer 30 has a first section 31, a second section 32, a third section 33, and a plurality of protrusions 34. The first section 31 is close to the tip 11 of the nail body 10 and abuts against the blocking member 20. The second section 32 is close to the tail end 12 of the nail body 10 and abuts against the tail end 12. The third section 33 is located between the first section 31 and the second section 32. In this embodiment, the first section 31 of the buffer 30 is disposed in the recess 21 of the blocking member 20.

[0016] The protrusions 34 are spaced apart from each other and surround the nail body 10 respectively. The spaced protrusions 34 make the surface of the buffer 30 uneven, thereby increasing the friction between the buffer 30 and the sound wave when the gunpowder explodes, thus absorbing the energy of the sound wave and achieving a noise reduction effect.

[0017] Protrusions 34 are distributed in the first section 31, the second section 32, and the third section 33. The thickness of the protrusions 34 on the first section 31 is greater than the thickness of the protrusions 34 on the third section 33, and the protrusions 34 on the first section 31 abut against the inner wall of the recess 21 of the blocking member 20. This prevents sparks from the gunpowder explosion from splashing out of the gunpowder gun through the gaps in the blocking member 20. The width of the protrusions 34 on the second section 32 is greater than the width of the protrusions 34 on the third section 33. This delays the disintegration time of the buffer member 30 when the gunpowder explodes, thereby effectively reducing noise and blocking sparks. In this text, the thickness of the protrusion 34 refers to the distance from the top of the protrusion 34 to the nail body 10, and the width of the protrusion 34 refers to the distance between the tops of two adjacent protrusions 34.

[0018] The number, thickness, and width of the protrusions 34 can be set according to the length of the nail body 10 and the user's needs. In the first embodiment, three protrusions 34 are provided on the first segment 31 and the second segment 32, and eight protrusions 34 are provided on the third segment 33. The width of the protrusions 34 on the first segment 31 is the same as the width of the protrusions 34 on the third segment 33, and the thickness of the protrusions 34 on the second segment 32 is the same as the thickness of the protrusions 34 on the third segment 33. The second embodiment is similar to the first embodiment, except that nine protrusions 34 are provided on the third segment 33.

[0019] First, the canopy nail is installed at the front end of the gunpowder gun, with the tail end 12 of the nail body 10 facing the gunpowder and the tip 11 of the nail body 10 facing and pressing against the position to be fixed. When the gunpowder explodes, the blocking member 20 is blocked, and the nail body 10 is shot outward. At this time, the buffer member 30 can absorb the sound waves generated by the explosion to achieve the effect of noise reduction, while preventing sparks from flying. Finally, the buffer member 30 is crushed by the blocking member 20 and the tail end 12 of the nail body 10, and then the nail body 10 is driven into the position to be fixed until the tail end 12 of the nail body 10 is blocked by the blocking member 20, thus completing the fixing of the canopy nail.

[0020] The advantage of this invention is that when the gunpowder in the gunpowder gun explodes, the buffer 30 can absorb the sound waves generated by the explosion, thus achieving a noise reduction effect. In addition, the buffer 30 can prevent sparks from flying out of the gunpowder gun. In this way, the buffer 30 can prevent the user from suffering hearing or vision damage due to prolonged use of the gunpowder gun. [Simplified Explanation of the Diagram]

[0021] Figure 1 is a perspective view of the present invention. Figure 2 is a perspective view of the present invention from another perspective. Figure 3 is a side view of the present invention. Figure 4 is a cross-sectional view of the present invention in the first embodiment. Figure 5 is a cross-sectional view of the present invention in the second embodiment. Figure 6 is a perspective view of the prior art.

Claims

1. A noise-reducing canopy nail, comprising: a nail body having: a tip; a tail end relative to the tip; a middle section located between the tip and the tail end; the diameter of the tip being smaller than the diameter of the middle section, and the diameter of the middle section being smaller than the diameter of the tail end; a blocking member fitted onto the nail body and located between the tip and the middle section of the nail body; a buffer member made of flame-retardant material; the buffer member fitted onto the middle section of the nail body and abutting against the tail end, and the buffer member being located between the tail end of the nail body and the blocking member; the buffer member having: a plurality of protrusions spaced apart from each other and respectively surrounding the nail body.

2. The noise-reducing canopy nail as described in claim 1, wherein: The buffer has: a first section that is close to the tip of the nail body and abuts against the stop; A second segment, which is close to and abuts against the tail end of the nail body; a third segment, which is located between the first segment and the second segment; the convex portions are formed in the first segment, the second segment and the third segment.

3. The noise-reducing canopy nail as described in claim 2, wherein, The blocking member has a recess facing the tail end of the nail body; the first section of the buffer member is disposed in the recess, and each of the protrusions on the first section abuts against the inner wall of the recess.

4. The noise-reducing canopy nail as described in claim 2, wherein, The thickness of each protrusion is the distance from the top of each protrusion to the nail body; the thickness of each protrusion located on the first segment is greater than the thickness of each protrusion located on the third segment.

5. The noise-reducing canopy nail as described in claim 2, wherein, The width of each protrusion is the distance between the tops of two adjacent protrusions; the width of each protrusion on the second segment is greater than the width of each protrusion on the third segment.

6. A noise-reducing canopy nail as described in any one of claims 1 to 5, wherein, The nail body has two impact portions formed at the tail end, and the two impact portions are symmetrical.

Images