Shoot nail fastening structure

Abstract

The utility model belongs to the technical field of shoot nails, and relates to a shoot nail fastening structure which comprises a shell, the shell is an annular cylinder, a fixing column is fixedly connected in an inner cavity of the shell, a distance is reserved between the top face of the fixing column and the top face of the shell, the top face of the shell is coaxially and fixedly connected with an annular boss, a chamfer is arranged on the top face of the boss, and the top face of the boss is fixedly connected with the shell. The top face of the shell and the boss are each provided with a plurality of seams, the seams are distributed in the axis direction of the shell, the bottom faces of the seams are flush with the top face of the fixing column, and the seams are distributed in a circumferential array mode relative to the top face of the shell. The fastening nail has the advantages that the nail cap of the fastening nail is moved to the boss, the fastening nail is pushed downwards, so that the nail cap slides through the chamfer and extrudes the boss into the fixing cavity until the end of the nail cap abuts against the top face of the fixing column, the boss restores to the original state to fix the nail cap, the fastening nail is detachably installed, and the fastening nail is convenient to use. And transportation can be carried out separately according to different products, and the transportation cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of nail shooting and relates to a nail shooting fastening structure. Background Art

[0002] Nail shooting is the process of driving nails into a building using the gunpowder gas generated by firing blank cartridges as a power source. Nails include fastening nails, flame retardants, powder columns, etc., which require a fastening structure for connection and fixation. When in use, place the assembled plastic shell nail bullet fastener into the nail tube sleeve of the nail shooter. After being compressed for a certain distance, the firing pin in the nail shooter is released. The firing pin moves at high speed under the action of the firing spring, and the pointed head of the firing pin hits the charge chamber on the plastic shell nail bullet fastener, causing the gunpowder to explode in a closed environment. Driven by the explosive force, the nail is shot into the building matrix, thereby achieving the construction purpose.

[0003] A nail-integrated structure for base connection disclosed in Chinese patent CN209083748U includes a fastening nail, a flame retardant, a powder column, a launch shell and a launch inner shell; the powder column is arranged inside the launch inner shell; the tail end of the fastening nail, the flame retardant and the launch inner shell are arranged inside the launch shell in sequence, and a fire platform is arranged between the flame retardant and the powder column. A launch inner shell is added inside the launch outer shell, and the powder column is placed inside the launch inner shell. At the same time, the protection of the launch inner shell and the launch outer shell against external moisture can be used to increase the moisture resistance of the powder column to the outside to a certain extent.

[0004] The tail end of the fastening nail in the nail is fixed inside the launch shell, so that the fastening nail, flame retardant, powder column, launch shell, etc. are integrated. Since the powder column contains gunpowder, transportation and official fees will be charged as dangerous goods when exported, so the fastening nail will also be charged as dangerous goods, which increases the cost.

[0005] In order to solve the above problems, the utility model proposes a nail fastening structure. Utility Model Content

[0006] In order to solve the problems existing in the background technology, the utility model proposes a nail fastening structure.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: comprising a shell, the shell is an annular cylinder, a fixing column is fixedly connected to the inner cavity of the shell, and a top surface of the fixing column is spaced from the top surface of the shell;

[0008] The top surface of the shell is coaxially fixedly connected with an annular boss, and the top surface of the boss is provided with a chamfer.

[0009] Furthermore, the portion of the inner cavity of the shell located at the top of the fixed column is the fixed cavity, and the portion of the inner cavity of the shell located at the bottom of the fixed column is the charge cavity.

[0010] Furthermore, the chamfer gradually slopes downward from the outer surface of the shell to the inner wall of the boss, the inner wall diameter of the boss is smaller than the inner wall diameter of the shell, and the outer surface diameters of the boss and the shell are equal.

[0011] Furthermore, the boss and the shell are both made of plastic, and the bottom surface of the boss is parallel to the top surface of the fixing column.

[0012] Furthermore, a plurality of slits are provided on the top surface and the boss of the shell, the slits are distributed along the axial direction of the shell, the bottom surface of the slits is flush with the top surface of the fixing column, and the plurality of slits are distributed in a circular array about the top surface of the shell.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The nail-shooting fastening structure is provided with a fixing cavity, and the portion of the inner cavity of the shell located at the top of the fixing column is the fixing cavity. When in use, the nail cap of the fastening nail is moved to the boss, and the fastening nail is pushed downward, so that the nail cap slides over the chamfer and squeezes the boss into the fixing cavity until the end of the nail cap abuts against the top surface of the fixing column, and the boss will return to its original state to fix the nail cap, and the drug column can be installed in the drug loading cavity, so that the fastening nail can be detachably installed, and can be transported separately according to different products, thereby reducing transportation costs.

[0015] 2. The nail-shooting fastening structure is provided with a shell, and the part of the inner cavity of the shell located at the bottom of the fixed column is a charge chamber. When in use, the charge column is installed in the charge chamber. When the fastening nail is fired by the hammer for the first time and encounters a hard object, only one-third or half of the fastening nail enters the hard object. The staff can install another charge column and fire the fastening nail again to achieve a better fastening effect.

[0016] 3. The nail fastening structure has a plurality of slits on the top surface of the shell and the boss. By squeezing the nail cap of the fastening nail into the fixing cavity, the multiple bosses separated by the slits are moved away from each other. After the nail cap is pushed in, the boss will return to its original state, which is convenient for installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 This utility model Figure 2 Schematic diagram of the structure with the A part in the middle enlarged.

[0020] In the figure: 1. outer shell; 2. fixing column; 3. seam; 4. chamfer; 5. boss; 6. charging cavity; 7. fixing cavity. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-Figure 3 As shown, the technical solution adopted by the utility model is as follows: a nail fastening structure includes a shell 1, the shell 1 is an annular cylinder, and a fixing column 2 is fixedly connected to the inner cavity of the shell 1. The top surface of the fixing column 2 is spaced from the top surface of the shell 1.

[0023] The portion of the inner cavity of the shell 1 located at the top of the fixing column 2 is the fixing cavity 7, which is used to install the fastening nail. The portion of the inner cavity of the shell 1 located at the bottom of the fixing column 2 is the charge cavity 6, which is used to install the charge column.

[0024] An annular boss 5 is coaxially fixedly connected to the top surface of the housing 1 , and a chamfer 4 is formed on the top surface of the boss 5 .

[0025] The chamfer 4 gradually slopes downward from the outer surface of the housing 1 to the inner wall of the boss 5. The inner wall diameter of the boss 5 is smaller than the inner wall diameter of the housing 1, and the outer surface diameters of the boss 5 and the housing 1 are equal.

[0026] The boss 5 and the housing 1 are both made of plastic, so that the boss 5 and the housing 1 are elastic. The bottom surface of the boss 5 is parallel to the top surface of the fixing column 2 and can be closely attached to the nail cap of the fastening nail.

[0027] A plurality of slits 3 are provided on the top surface of the housing 1 and the boss 5, and the slits 3 are distributed along the axial direction of the housing 1. The bottom surface of the slits 3 is flush with the top surface of the fixing column 2, and the plurality of slits 3 are distributed in a circular array with respect to the top surface of the housing 1. The boss 5 is divided into a plurality of slits 3, which facilitates the deformation of the boss 5 when the fastening nail is installed. The fastening nail is specifically introduced in the patent CN209083748U mentioned in the background technology. It is a nail commonly used in life and is an existing product, so it will not be described in detail here.

[0028] Working principle:

[0029] When in use, move the nail cap of the fastening nail to the boss 5 so that the nail cap is located directly above the fixing column 2. Push the fastening nail into the fixing cavity 7 so that the nail cap slides along the chamfer 4 into the fixing cavity 7, and the nail cap squeezes the boss 5.

[0030] During the extrusion, the plurality of bosses 5 separated by the slits 3 are moved away from each other until the end of the nail cap abuts against the top surface of the fixing column 2. After the nail cap is pushed in, the boss 5 returns to its original shape, so that the bottom surface of the boss 5 abuts against the surface of the nail cap, thereby fixing the fastening nail in the fixing cavity 7 and installing the fastening nail on the housing 1. The drug column can be installed in the drug loading cavity 6.

[0031] After installation, the fastening nail is fired by the hammer, and the fastening nail is ejected under the action of the powder column, so that the fastening nail is tightened.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A nail fastening structure, characterized in that: The device comprises an outer shell (1), the outer shell (1) is an annular cylinder, a fixing column (2) is fixedly connected to the inner cavity of the outer shell (1), and a top surface of the fixing column (2) is spaced from the top surface of the outer shell (1); An annular boss (5) is coaxially fixedly connected to the top surface of the housing (1), and a chamfer (4) is provided on the top surface of the boss (5).

2. A nail fastening structure according to claim 1, characterized in that: The portion of the inner cavity of the shell (1) located at the top of the fixed column (2) is the fixed cavity (7), and the portion of the inner cavity of the shell (1) located at the bottom of the fixed column (2) is the charge cavity (6).

3. A nail fastening structure according to claim 1, characterized in that: The chamfer (4) gradually slopes downward from the outer surface of the shell (1) to the inner wall of the boss (5); the inner wall diameter of the boss (5) is smaller than the inner wall diameter of the shell (1); and the outer surface diameters of the boss (5) and the shell (1) are equal.

4. The nail fastening structure according to claim 1, characterized in that: The boss (5) and the housing (1) are both made of plastic, and the bottom surface of the boss (5) is parallel to the top surface of the fixing column (2).

5. The nail fastening structure according to claim 1, characterized in that: A plurality of slits (3) are provided on the top surface of the shell (1) and the boss (5), the slits (3) are distributed along the axial direction of the shell (1), the bottom surface of the slits (3) is flush with the top surface of the fixing column (2), and the plurality of slits (3) are distributed in a circular array with respect to the top surface of the shell (1).

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