Building deformed steel bar fixing nail gun and fixing method

Abstract

The invention relates to the field of building construction equipment, and particularly discloses a building deformed steel bar fixing nail gun and a fixing method.The building deformed steel bar fixing nail gun comprises a nail gun body, a forming head and a nail supply module, the nail gun body is provided with an air supply cavity, an air cylinder, a firing pin and a switch assembly, an air inlet head is arranged at one end of the air supply cavity, and the other end of the air supply cavity is connected with the air cylinder; the firing pin part is arranged in the air cylinder; the nail supply module is used for providing U-shaped nails for the forming head; the forming head comprises a connecting part and a forming part, a first limiting groove is formed in the inner side of the connecting part, a second limiting groove is formed in the rear portion of the connecting part, and the second limiting groove is located below the first limiting groove and is transversely formed; and the forming part is positioned below the second limiting groove and is provided with an arc-shaped concave surface. By adopting the device, the deformed steel bar and the iron sheet can be quickly fixed, the operation is simple and convenient, and the construction efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of construction equipment, and in particular to a nail gun and fixing method for fixing threaded steel bars. Background Technology

[0002] In existing building pouring projects, it is often necessary to connect rebar to stainless steel sheet to form a local enclosure before concrete pouring. The current method for connecting the rebar to the stainless steel sheet involves first drilling holes in the stainless steel sheet with an electric drill, and then manually connecting the rebar to the sheet using wire. This method is cumbersome, labor-intensive, and requires a high level of worker skill. Furthermore, it is prone to inconsistencies in personnel, easily resulting in weak connections that cause the stainless steel sheet to separate from the rebar, affecting the quality of the pouring. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a nail gun and fixing method for fixing threaded steel bars in construction, which can quickly fix threaded steel bars to sheet metal, is easy to operate, and has high construction efficiency.

[0004] To address the aforementioned technical problems, this invention provides a nail gun for fixing threaded steel bars, comprising a nail gun body, a forming head, and a nail supply module. The nail gun body is provided with an air supply chamber, a cylinder, a firing pin, and a switch assembly. One end of the air supply chamber has an air inlet, and the other end is connected to the cylinder. The firing pin is located in the cylinder and can be extended outward by the gas inside the cylinder. The switch assembly is used to control the air supply chamber to supply air to different parts of the cylinder to drive the firing pin to extend or retract. The nail supply module is used to provide U-shaped nails to the forming head. The forming head includes a connecting part and a forming part. A first limiting groove is formed on the inner side of the connecting part, and the first limiting groove is vertically arranged. A second limiting groove is formed at the rear of the connecting part, and the second limiting groove is located below the first limiting groove and is arranged horizontally. The forming part is located below the second limiting groove and has an arc-shaped concave surface.

[0005] As an improvement to the above solution, the second limiting groove extends through the connecting part from both sides.

[0006] As an improvement to the above solution, the arc-shaped concave front extends through the forming part from front to back.

[0007] As an improvement to the above solution, a notch is provided above the arc-shaped concave surface, and the top surface of the notch is higher than the top surface of the second limiting groove.

[0008] As an improvement to the above solution, the center of the connecting part is also provided with a hollow part, and the top surface of the hollow part is an arc surface.

[0009] As an improvement to the above solution, the bottom end of the firing pin is provided with an arc-shaped groove.

[0010] As an improvement to the above solution, the forming head is further provided with a sliding member, the bottom of which is provided with a protrusion that extends downward relative to the top surface of the hollowed-out portion; the switch assembly includes a control valve and a trigger, the trigger being hinged to the nail gun body and having a safety buckle at its end; the control valve is provided with a valve core rod, and the trigger also abuts against the valve core rod; the sliding member is connected to a transmission rod, the end of which is provided with a slider, the slider being disposed in a vertical groove of the nail gun body, and the safety buckle being disposed on one side of the vertical groove.

[0011] As an improvement to the above solution, the nail supply module includes a nail guide rail and a nail pusher block. The top of the nail guide rail is provided with a nail guide arc surface, and the nail pusher block is disposed on the nail guide rail. The top of the nail pusher block is provided with a nail pusher arc surface that cooperates with the nail guide arc surface.

[0012] Accordingly, this application also provides a method for fixing threaded steel bars in construction, using the threaded steel bar fixing nail gun described above:

[0013] Place the sheet metal and rebar tightly in the predetermined position;

[0014] The second limiting groove is inserted into the edge of the sheet metal, and the threaded steel is positioned in the hollow part of the connecting part;

[0015] Pressing the trigger causes air pressure to push the firing pin downwards, inserting the U-shaped pin at the front end into the sheet metal. The front end of the U-shaped pin contacts the curved concave surface and bends outwards, fixing it to the bottom of the sheet metal.

[0016] As an improvement to the above solution, when the threaded steel bar is inserted into the hollow part, the nail gun body is pressed down, so that the protrusion of the sliding part contacts the threaded steel bar and rises synchronously, and the safety lock of the trigger is unlocked through the transmission rod.

[0017] Implementing the embodiments of the present invention has the following beneficial effects:

[0018] Using the threaded steel fixing nail gun provided in this embodiment, threaded steel can be quickly fixed to sheet metal, which is easy to operate and has high construction efficiency.

[0019] When the firing pin pushes the U-shaped nail downwards, the arcuate groove abuts against the top of the U-shaped nail, concentrating the thrust on the two feet of the U-shaped nail and providing sufficient impact force without changing the shape of the U-shaped nail. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an embodiment of the building threaded steel fixing nail gun of the present invention;

[0021] Figure 2 This is a schematic diagram of the assembly state of the molding head and cylinder according to an embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of an embodiment of the present invention, showing a threaded steel fixing nail gun in its initial state.

[0023] Figure 4 This is a cross-sectional view of an embodiment of the present invention, in which a threaded steel fixing nail gun is in the firing state;

[0024] Figure 5 yes Figure 4 Enlarged view of part A;

[0025] Figure 6 This is a schematic diagram of the working state of a building threaded steel fixing nail gun according to the present invention. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this text are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0027] like Figures 1-3 As shown, the first embodiment of the present invention provides a nail gun for fixing threaded steel bars in construction, including a nail gun body 1, a forming head 2, and a nail supply module 3. The nail gun body 1 is provided with an air supply chamber 11, a cylinder 12, a firing pin 13, and a switch assembly 14. One end of the air supply chamber 11 is provided with an air inlet 111, and the other end is connected to the cylinder 12. The firing pin 13 is partially disposed in the cylinder 12 and can be driven outward by the gas in the cylinder 12. The switch assembly 14 is used to control the air supply chamber 11 to reach different parts of the cylinder 12. The air supply module 3 is used to drive the striker 13 to extend or retract; the nail supply module 3 is used to provide U-shaped nails 4 to the forming head 2; the forming head 2 includes a connecting part 21 and a forming part 22, a first limiting groove 23 is formed on the inner side of the connecting part 21, the first limiting groove 23 is arranged vertically, a second limiting groove 24 is formed at the rear of the connecting part 21, the second limiting groove 24 is located below the first limiting groove 23 and is arranged horizontally; the forming part 22 is located below the second limiting groove 24 and has an arc-shaped concave surface 221.

[0028] Using the threaded steel fixing nail gun provided in this embodiment, threaded steel can be quickly fixed to sheet metal, which is easy to operate and has high construction efficiency.

[0029] To fix the nail gun body 1 and the sheet metal 5 relative to each other during nailing and to ensure that the firing pin 13 is aligned with the sheet metal 5, the second limiting groove 24 extends through the connecting part 21 on both sides. When it is necessary to fix the threaded steel bar 6 to the sheet metal 5, the threaded steel bar 6 can be passed through the gap between the connecting parts 21 of the nail gun body 1 first, and then the second limiting groove 24 on the connecting parts 21 on both sides can be inserted from the side of the stainless steel sheet metal 5. When the U-shaped nail 4 is shot out, the stainless steel sheet metal 5 will first contact the bottom wall of the second limiting groove 24 under the impact of the U-shaped nail 4, ensuring that the U-shaped nail 4 is driven vertically into the stainless steel sheet metal 5. Then, the front end of the U-shaped nail 4 passes through the stainless steel sheet metal 5, contacts the arc-shaped concave surface 221 of the forming part 22 and bends outward and upward, finally nailing the threaded steel bar 6 to the stainless steel sheet metal 5.

[0030] Preferably, the arc-shaped concave surface 221 extends through the forming part 22 from front to back, facilitating observation of the engagement state of the U-shaped nail 4 from the front of the arc-shaped concave surface 221. A notch 25 is also provided above the arc-shaped concave surface 221, with the top surface of the notch 25 higher than the top surface of the second limiting groove 24. The notch 25, in conjunction with the arc-shaped concave surface 221, serves as an observation window before nailing, allowing observation from the front to ensure that the stainless steel sheet 5 is fully abutting against the inner side of the second limiting groove 24. This facilitates adjustment before nailing and ensures nailing safety. A pad can also be inserted into the notch 25 to prevent the stainless steel sheet 5 from being pierced twice from the bottom upwards by the U-shaped nail 4, making the connection structure more robust.

[0031] To match the contour of the threaded steel bar 6, the connecting part 21 is also provided with a hollow part 211 in the center, and the top surface of the hollow part 211 is an arc surface. Correspondingly, the bottom end of the firing pin 13 is provided with an arc groove 131. When the firing pin 13 pushes the U-shaped nail 4 downward, the arc groove 131 abuts against the top of the U-shaped nail 4, concentrating the thrust on the two feet of the U-shaped nail 4, providing sufficient impact force without changing the shape of the U-shaped nail 4.

[0032] Combination Figure 4 and Figure 5As shown, to prevent accidental triggering of the nail gun, a safety device is also provided in one embodiment. The safety device includes a sliding member 71 on the forming head 2, with a protrusion 72 at the bottom of the sliding member 71 extending downward relative to the top surface of the hollowed-out portion 211. The sliding member 71 has a sliding limiting groove 711, and a screw 73 passes through the sliding limiting groove 711 to fix it to the forming head 2, allowing the sliding member 71 to slide up and down. The switch assembly 14 includes a control valve 141 and a trigger 142. The trigger 142 is hinged to the nail gun body 1 and has a safety buckle 143 at its end. The control valve 141 has a valve core rod 144, and the trigger 142 also abuts against the valve core rod 144. The cylinder 12 is provided with a first air passage 121 and a second air passage 122. The first air passage 121 is connected to the top of the cylinder 12, and the second air passage 122 is connected to the bottom of the cylinder 12. The control valve 141 connects the first air passage 121, the second air passage 122, and the air supply chamber 11. The sliding member 71 is connected to a transmission rod 74. The end of the transmission rod 74 is provided with a slider 75. The slider 75 is disposed in the vertical groove 76 of the nail gun body 1. The safety buckle 143 is disposed on one side of the vertical groove 76. When the valve core rod 144 is in a free state, the control valve 141 connects the second air passage 122 to the air supply chamber 11, and the piston 15 connecting the firing pin 13 is located at the top of the cylinder 12; when the trigger 142 pushes the valve core rod 144 upward, the control valve 141 connects the first air passage 121 to the air supply chamber 11, and at the same time connects the second air passage 122 to the outside. The high-pressure air in the air supply chamber 11 pushes the piston 15 downward rapidly, and the firing pin 13 contacts the U-shaped nail 4 located at the foremost end, pushing it downward. Under the limiting action of the first limiting groove 23, it contacts the stainless steel sheet 5 perpendicularly, reliably fixing the stainless steel sheet 5 to the threaded steel 6. Figure 6 As shown, the working principle of the safety device is as follows: When the slider 71 is in the initial position, the slider 75 and the safety buckle 143 do not interfere with each other. If the trigger 142 is pressed at this time, the trigger 142 will rotate freely around the hinge point with a certain amount of vertical displacement, and will not push the valve core rod 144 to rise, thus preventing accidental activation. When the nail gun is placed in place, the protrusion 72 is lifted by the threaded steel 6, and the slider 75 is lifted accordingly and located on the side of the safety buckle 143. If the trigger 142 is pressed at this time, the safety buckle 143 contacts the slider 75 and becomes a fulcrum of the trigger 142. Therefore, the trigger 142 can lift the valve core rod 144, so that the control valve 141 switches the connected air passage to perform the nailing operation.

[0033] In some embodiments, the nail supply module 3 includes a nail guide rail 31 and a nail pusher block 32. The top of the nail guide rail 31 is provided with a nail guide arc surface 311, and the nail pusher block 32 is disposed on the nail guide rail 31. The top of the nail pusher block 32 is provided with a nail pusher arc surface 321 that mates with the nail guide arc surface 311. This structure allows for the matching of specially designed U-shaped nails 4 and provides sufficient reserve, reducing the frequency of nail installation.

[0034] The second embodiment of this application provides a method for fixing threaded steel bars in construction, using the threaded steel bar fixing nail gun as described above, including the following steps:

[0035] Place the sheet metal 5 and the rebar 6 tightly together in the preset position;

[0036] The second limiting groove 24 is inserted into the edge of the sheet metal 5, and the threaded steel 6 is located in the hollow part 211 of the connecting part 21;

[0037] Pressing the trigger 142 causes the air pressure to push the firing pin 13 down, which in turn inserts the U-shaped nail 4 at the front end into the sheet metal 5. The front end of the U-shaped nail 4 contacts the arc-shaped concave surface 221 and bends outward, fixing it to the bottom of the sheet metal 5.

[0038] Preferably, when the threaded steel bar 6 extends into the hollowed-out portion 211, the nail gun body 1 is pressed down, so that the protrusion 72 of the sliding member 71 contacts the threaded steel bar 6 and rises synchronously, and the safety buckle 143 of the trigger 142 is unlocked through the transmission rod 74.

[0039] Using the above equipment and methods, the threaded steel bar 6 and the sheet metal 5 can be quickly fixed, which is simple to operate and has high construction efficiency.

[0040] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A nail gun for fixing threaded steel bars in construction, characterized in that, Includes the nail gun body, forming head, and nail feeding module. The nail gun body is provided with an air supply chamber, a cylinder, a firing pin and a switch assembly. One end of the air supply chamber is provided with an air inlet head, and the other end is connected to the cylinder. The striking pin is located in the cylinder and can be extended outward by the gas in the cylinder. The switching assembly is used to control the air supply chamber to supply air to different parts of the cylinder to drive the striking pin to extend or retract. The nail supply module is used to supply U-shaped nails to the forming head; The forming head includes a connecting part and a forming part. A first limiting groove is formed on the inner side of the connecting part. The first limiting groove is vertically arranged. A second limiting groove is formed at the rear of the connecting part. The second limiting groove is located below the first limiting groove and is horizontally arranged. The forming part is located below the second limiting groove and has an arc-shaped concave surface.

2. The threaded steel fixing nail gun as described in claim 1, characterized in that, The second limiting groove extends through the connecting part from both sides.

3. The threaded steel fixing nail gun as described in claim 1, characterized in that, The arc-shaped concave front extends through the forming part from both ends.

4. The building threaded steel fixing nail gun as described in claim 1, characterized in that, A notch is provided above the arc-shaped concave surface, and the top surface of the notch is higher than the top surface of the second limiting groove.

5. The building threaded steel fixing nail gun as described in claim 1, characterized in that, The connecting part also has a hollowed-out section in the center, and the top surface of the hollowed-out section is an arc surface.

6. The threaded steel fixing nail gun as described in claim 1, characterized in that, The bottom end of the firing pin is provided with an arc-shaped groove.

7. The building threaded steel fixing nail gun as described in any one of claims 1-6, characterized in that, The forming head is also provided with a sliding member, the bottom of which has a protrusion that extends downward relative to the top surface of the hollowed-out portion; the switch assembly includes a control valve and a trigger, the trigger being hinged to the nail gun body and having a safety buckle at its end; the control valve has a valve core rod, and the trigger also abuts against the valve core rod; the sliding member is connected to a transmission rod, the end of which has a slider, the slider being disposed in a vertical groove of the nail gun body, and the safety buckle being disposed on one side of the vertical groove.

8. The threaded steel fixing nail gun as described in any one of claims 1-6, characterized in that, The nail supply module includes a nail guide rail and a nail pusher block. The top of the nail guide rail is provided with a nail guide arc surface, and the nail pusher block is disposed on the nail guide rail. The top of the nail pusher block is provided with a nail pusher arc surface that cooperates with the nail guide arc surface.

9. A method for fixing threaded steel bars in construction, characterized in that, Using the threaded steel fixing nail gun as described in any one of claims 1-8: Place the sheet metal and rebar tightly in the predetermined position; The second limiting groove is inserted into the edge of the sheet metal, and the threaded steel is positioned in the hollow part of the connecting part; Pressing the trigger causes air pressure to push the firing pin downwards, inserting the U-shaped pin at the front end into the sheet metal. The front end of the U-shaped pin contacts the curved concave surface and bends outwards, fixing it to the bottom of the sheet metal.

10. The method for fixing threaded steel bars in construction as described in claim 9, characterized in that, When the threaded steel bar is inserted into the hollow part, the nail gun body is pressed down, so that the protrusion of the sliding part contacts the threaded steel bar and rises synchronously, and the safety lock of the trigger is unlocked through the transmission rod.

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