Integrated nail for building installation

Abstract

The utility model discloses an integrated nail for building installation, which relates to the technical field of building installation, and comprises a metal nail and a nail head shell arranged at the top of the metal nail, the nail head shell comprises an outer shell and a propellant powder shell, the inner top of the outer shell is provided with an assembly cavity, and the propellant powder shell is assembled at the inner top of the assembly cavity. The inner diameter of the end, close to the metal nail, of the assembly cavity is shrunk to form an energy gathering part, the bottom end of the propellant powder shell is located at the top of the energy gathering part, so that the distance between the tail end of the metal nail and the propellant powder shell is increased, and at the moment of firing, high-energy gas generated by gunpowder gas expansion achieves gas gathering through the energy gathering part; according to the integrated nail fastener, the metal nail can be quickly ejected outwards along the launching tube, the percussion performance is improved, meanwhile, plastic lengthening is utilized, energy of propellant powder is gathered, the gap between the plastic lengthening section and an inner hole of the launching tube after percussion is reduced, and the purposes that the performance is improved and the integrated nail fastener adapts to various launching tube calibers are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building installation technical field, especially a kind of integrated nail for building installation. BACKGROUND

[0002] One way of building suspended ceiling installation adopts traditional anchor fastening mode, need to set up scaffold, predrill, drive expansion bolt, it is very inconvenient, low efficiency;Another way adopts nail gun to support nail and nail bomb cost is too high. In recent years, the integrated nail developed is to integrate nail, bomb into one, i.e. firing powder, propellant, nail are directly fixed on nail head shell and propellant shell. Its main advantage is low cost, when operating, it reduces the work of separate bomb loading, and its working efficiency is extremely high.

[0003] The existing integrated nail is impacted by the firing pin of integrated nail fastener to fire the firing powder and propellant, to generate gunpowder gas to push the nail, so that the nail cap of the nail is fixedly connected to the steel part of the door and window, and the other end of the nail tip part enters the base body to realize fastening. The integrated nail can be directly used for installing ceiling suspended ceiling, so that the construction is fast, convenient and safe. The integrated nail is a pioneering application of gunpowder propulsion nail fastening, and has a wide market and benefits.

[0004] However, the existing integrated nail has unstable performance, poor adaptability to integrated nail fasteners of various launch tube diameters, and high failure rate, which is inconvenient. Therefore, the present application provides an integrated nail for building installation. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to provide an integrated nail for building installation to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an integrated nail for building installation, comprising a metal nail and a nail head shell mounted on the top of the metal nail, the nail head shell comprising an outer shell body and a propellant shell, an assembly cavity is provided on the inner top of the outer shell body, the propellant shell is assembled on the inner top of the assembly cavity, the inner diameter of the assembly cavity near one end of the metal nail is contracted to form an energy-gathering part, and the bottom end of the propellant shell is located on the top of the energy-gathering part, so that the distance between the end of the metal nail and the propellant shell is increased.

[0007] Preferably, the end of the metal nail is integrally formed with a nail cap, and the front end of the outer shell body is integrally formed on the outer surface of the nail cap by injection molding.

[0008] Preferably, the energy-gathering part comprises a conical annular surface, and the bottom end of the conical annular surface is contracted into a sharp end.

[0009] Preferably, the energy-gathering part comprises a circular truncated cone annular surface, and the bottom end of the circular truncated cone annular surface is contracted into a horizontal ring.

[0010] Preferably, the inside of the propellant shell is hollow, and the inside of the propellant shell is filled with the propellant.

[0011] Preferably, the propellant is filled into the shaped charge.

[0012] Preferably, a cylindrical protrusion is integrally formed on the middle part of the shaped charge and extends upwardly to the inside of the propellant shell.

[0013] Preferably, the inside top of the propellant shell is filled with the primer, and the primer is in contact with the propellant.

[0014] Preferably, the top of the propellant shell is provided with a primer groove, and the primer groove is opposite to the primer.

[0015] Preferably, the propellant comprises one of single-base propellant, double-base propellant and multi-base propellant.

[0016] Technical effects and advantages of the utility model:

[0017] The integrated nail for building installation is provided with a propellant shell, a shaped charge, a primer groove and a primer, and the shaped charge is arranged in the propellant shell. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall external schematic view of the utility model;

[0019] Figure 2 It is an overall internal structure sectional view of the utility model;

[0020] Figure 3 It is an internal conical annular surface structure schematic view of the nail head shell of the utility model;

[0021] Figure 4 It is an internal circular table annular surface structure schematic view of the nail head shell of the utility model.

[0022] In the drawing: 1, metal nail; 12, nail cap; 2, nail head shell; 21, outer shell body; 22, propellant shell; 23, propellant; 24, shaped charge; 241, conical annular surface; 242, circular table annular surface; 25, cylindrical protrusion; 26, primer groove; 27, primer. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] The utility model provides a kind of integrated nail for building installation as Figures 1-4 As shown in a kind of building installation integrated nail, including metal nail 1 and the nail head shell 2 of installation in the top of metal nail 1, nail head shell 2 includes shell body 21 and propellant shell 22, the inner top of shell body 21 is provided with assembly cavity, propellant shell 22 is assembled in the inner top of assembly cavity, the inner diameter of assembly cavity is contracted to form energy-gathering portion 24 near one end of metal nail 1, the bottom end of propellant shell 22 is located at the top of energy-gathering portion 24, so that the distance between the end of metal nail 1 and propellant shell 22 increases.

[0025] The end of metal nail 1 is integrally formed with nail cap 12, the front end of shell body 21 is integrally formed on the outer surface of nail cap 12 by injection molding, so as to improve the connection strength of metal nail 1 and nail head shell 2, and avoid falling off.

[0026] Energy-gathering portion 24 includes conical annular surface 241, the bottom end of conical annular surface 241 is contracted into a sharp end, so as to maximize kinetic energy gathering and maximize launch performance.

[0027] Energy-gathering portion 24 includes circular truncated cone annular surface 242, the bottom end of circular truncated cone annular surface 242 is contracted into a horizontal ring, so that the bottom end is a flat surface, ensuring uniform thrust on metal nail 1 during gas expansion of the propellant during firing, while avoiding nail head shell 2 pipe explosion.

[0028] The inside of propellant shell 22 is hollow, and the inside of propellant shell 22 is filled with launching powder 23, the launching powder 23 is filled into energy-gathering portion 24, the middle part of energy-gathering portion 24 is integrally formed with a cylindrical protrusion 25 extending upward, the top end of cylindrical protrusion 25 extends into the inside of propellant shell 22, the inner top of propellant shell 22 is filled with firing powder 27, and the firing powder 27 is in contact with the launching powder 23, a firing groove 26 is formed in the top of propellant shell 22, the firing groove 26 is opposite to the firing powder 27, and in use, the firing needle strikes the firing groove 26, so that the firing powder 27 is extruded to produce heat, thereby acting on the launching powder 23 to make the launching powder 23 expand to produce high-energy gas.

[0029] The launching powder 23 includes one of single-base propellant, double-base propellant and multi-base propellant, which can be selected and filled according to actual operation requirements in use.

[0030] Working principle; when the device is in use, by inserting the integral nail into the launching tube, pressing the protective cover, driving the launching tube and the integral nail to move backward, when the end face of the integral nail's launching shell 22 is in close contact with the end face of the striker seat, driving the striker seat and the frame to move backward, compressing the firing spring to form a pre-pressure, when moving to the firing pin strikes the firing block, the hammer and the striker are separated from the safety, the striker hits the firing groove 26 on the launching shell 22 of the integral nail, hits the firing powder 27 and the launching powder 23, generates high-energy gas expansion to push the shooting nail, so that the nail cap of the shooting nail is fixedly connected with the steel part of the door and window, and the other end of the nail tip part enters the base to realize fastening.

[0031] At the moment of firing, the high-energy gas generated by the expansion of the powder gas moves to the forward end along the assembly cavity, realizes gas gathering through the energy gathering part 24, so that the metal nail 1 is quickly ejected outward along the launching tube, thereby improving the firing performance, and since the bottom end of the launching shell 22 is located at the top of the energy gathering part 24, the distance between the metal nail 1 end and the launching shell 22 is increased, thereby realizing the connection lengthening of the whole nail head shell 2 by about 10-15mm, realizing the gathering of launching powder energy and the reduction of the gap between the nail head shell 2 and the inner hole of the launching tube after firing, achieving the purpose of performance improvement and the integral nail fastener adapting to various launching tube calibers.

[0032] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or equivalent replacement of some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. An integral nail for building installation, comprising a metal nail (1) and a nail head shell (2) mounted on the top of the metal nail (1), characterized in that, The nail head shell (2) includes an outer shell (21) and a propellant shell (22). An assembly cavity is provided on the inner top of the outer shell (21). The propellant shell (22) is assembled on the inner top of the assembly cavity. The inner diameter of the assembly cavity near the metal nail (1) is narrowed to form a focusing part (24). The bottom end of the propellant shell (22) is located on the top of the focusing part (24), so that the distance between the end of the metal nail (1) and the propellant shell (22) is increased.

2. The integrated nail for building installation according to claim 1, characterized in that, The end of the metal nail (1) is integrally formed with a nail head (12), and the front end of the outer shell (21) is integrally formed on the outer surface of the nail head (12) by injection molding.

3. The integrated nail for building installation according to claim 1, characterized in that, The energy-concentrating part (24) includes a conical annular surface (241), the bottom end of which tapers into a pointed shape.

4. The integrated nail for building installation according to claim 1, characterized in that, The energy-concentrating part (24) includes a frustum torus (242), the bottom end of which contracts into a horizontal ring shape.

5. The integrated nail for building installation according to claim 1, characterized in that, The interior of the propellant casing (22) is hollow, and the interior of the propellant casing (22) is filled with propellant (23).

6. The integrated nail for building installation according to claim 5, characterized in that, The propellant (23) is loaded into the shaped charge (24).

7. The integrated nail for building installation according to claim 5, characterized in that, The energy-concentrating part (24) has an integrally formed columnar protrusion (25) extending upward from the middle, and the top of the columnar protrusion (25) extends into the interior of the propellant casing (22).

8. The integrated nail for building installation according to claim 5, characterized in that, The inner top of the propellant casing (22) is filled with firing powder (27), and the firing powder (27) is in contact with the propellant (23).

9. The integrated nail for building installation according to claim 8, characterized in that, The top of the propellant casing (22) is provided with a firing groove (26), which is directly opposite the firing propellant (27).

10. The integrated nail for building installation according to claim 5, characterized in that, The propellant (23) includes one of a single-base propellant, a double-base propellant, and a multi-base propellant.

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