Shoot nail rotating and fastening device

Abstract

The utility model relates to the technical field of fasteners, in particular to a shoot nail rotating and fastening device which comprises a guide nail pipe kit, the guide nail pipe kit at least comprises a directional nail pipe, and a filling channel used for filling shoot nails is arranged in the directional nail pipe. At least one spiral groove is formed in the inner wall of the filling channel, the spiral groove is matched with a guide protruding block at the tail end of the shoot nail, and the shot shoot nail rotates under the matching effect of the spiral groove and the guide protruding block on the shoot nail. According to the easy-to-hit-in mode, when the nail tail is hit, the nail tail can be more effectively hit into a base body, reliable connection is achieved, and the firmness and stability of the shoot nail in the base body such as a wall body are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, and particularly to a nail shooting and rotating fastening device. Background Art

[0002] A nail shooter shoots nails during decoration construction to fix fasteners to a substrate. In a common nail shooter, the nail is shot into the substrate quickly, and the nail is in a free state during movement without fixing its movement posture. That is, when the tail of the nail is struck, since it only makes axial sliding, the effect of the nail head breaking into the wall is not good, and a relatively large impact force needs to be applied to achieve a good connection.

[0003] On August 15, 2017, a Chinese patent document applied for a nail tube kit with a guiding nail gun, and the patent publication number is CN107253163A. This solution includes a nail barrel and a push rod. The inner wall of the front section of the nail barrel is provided with raised longitudinal guide strips. In order to avoid interference between the push rod and the raised strips when the push rod shoots out the nail, a longitudinal guide groove matching the longitudinal guide strips is provided at the front section of the push rod. At the same time, the longitudinal guide groove on the nail cooperates with the longitudinal raised strips, so that the angle of the nail can be fixed, and the nail can be shot into the substrate along a linear trajectory suitable for different phase guide grooves, so that the nail maintains a fixed positioning posture when shooting into the substrate.

[0004] However, this straight-in shooting method requires a greater impact force, and at the same time, compared with the straight-in method, the movement state of the nail is not changed, and it is not easy to shoot into the substrate. Content of the Utility Model

[0005] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the utility model is: how to provide a device that can change the movement posture of the nail and more easily shoot the nail into the substrate for fixation.

[0006] To solve the above technical problem, the utility model adopts the following technical solution: a nail shooting and rotating fastening device, including a guiding nail tube kit, the guiding nail tube kit at least includes a directional nail tube, and a loading channel for loading nails is arranged in the directional nail tube; at least one spiral groove is opened on the inner wall of the loading channel, and the spiral groove is adapted to the guiding convex block at the tail end of the nail. Under the cooperation of the spiral groove and the guiding convex block on the nail, the shot nail rotates.

[0007] Further, the number of the spiral grooves is two.

[0008] Further, the spiral groove penetrates through the inner wall and the outer wall of the directional nail tube.

[0009] Furthermore, the guiding nail tube kit further includes a nail tube sleeve, and the nail tube sleeve is coaxially sleeved on the directional nail tube.

[0010] Further, the inner diameter of the nail tube sleeve matches the outer diameter of the directional nail tube.

[0011] Further, the guide nail tube kit further includes a limit clip and an outer sleeve. At least one limit slot is provided at the front ends of the directional nail tube and the nail tube sleeve. The front end of the limit clip has a limit block corresponding to and cooperating with the limit slot. The limit clip is coaxially sleeved on the front end of the nail tube sleeve. The limit block extends radially inwards along the limit clip and is engaged with the limit slots on the directional nail tube and the nail tube sleeve. The outer sleeve is coaxially sleeved on the outer wall of the limit clip, and the rear end of the outer sleeve is connected to the nail tube sleeve and limits the axial movement of the limit clip.

[0012] Further, the rear end of the limit clip has an outer ring platform extending radially outwards, and the front end of the outer sleeve has an inner ring platform extending radially inwards. The inner diameter of the inner ring platform is smaller than the outer diameter of the outer ring platform.

[0013] Further, there are two limit slots on both the directional nail tube and the nail tube sleeve, and the limit block at the front end of the limit clip extends radially inwards.

[0014] Further, the rear end of the directional nail tube is threadedly connected to the nail tube of the nail gun, between the nail tube sleeve and the directional nail tube, and between the outer sleeve and the nail tube sleeve.

[0015] Further, barbs are formed on the circumferential side wall of the nail body of the nail, and the barbs are inclined towards the nail head along one side of the nail body.

[0016] In summary, the utility model has the following beneficial effects:

[0017] (1) Through the detachable connection between the directional nail tube and the nail tube of the nail gun, the guide nail tube kit can be better matched with the existing nail gun, and can be conveniently disassembled and installed for use. It is shot into the base body in a rotating posture and fixed during the decoration construction of the nail gun, changing the linear movement track into a spiral direction. Therefore, when matching with different sizes and different shaped nail heads of each nail body, the nail can be more easily nailed into the base body with a smaller impact force or under the action of the original impact force.

[0018] (2) The nail body of the nail has raised barbs. The existence of the barbs can effectively increase the friction between the nail and the base body. When the nail is struck or pushed into the base body, the barbs will insert into the base body, forming additional resistance, making it more difficult for the nail to be moved or pulled out, thereby improving the fixing effect; at the same time, when the nail body of the nail has barbs, the nail can be more easily shot into the base body by a screwing-in method.

[0019] (3) The spiral groove connects the inner and outer walls of the directional nail tube. A nail tube sleeve, a limit clip, and an outer sleeve are respectively sleeved outside the directional nail tube. The nail tube sleeve is in threaded fit with the directional nail tube to prevent the reverse torque generated during the rotation of the nail when it is shot into the substrate from deforming and opening the nail tube; at the same time, the limit clip fixes the directional nail tube and the outer sleeve relative to each other, enhancing the anti-torsion of the nail tube. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a nail rotating fastening device.

[0021] Figure 2 It is a sectional view of the nail rotating fastening device.

[0022] Figure 3 It is a front view of the nail.

[0023] Figure 4 It is a right view of the nail.

[0024] The reference numerals in the drawings are explained as follows: 1. Guide nail tube kit; 2. Nail; 21. Guide convex block; 22. Barbs; 3. Directional nail tube; 31. Spiral groove; 32. Limit card slot; 4. Nail tube sleeve; 5. Limit clip; 51. Limit block; 6. Outer sleeve. Detailed Implementation Modes

[0025] The present utility model will be further described in detail below in conjunction with the embodiments.

[0026] Embodiment 1:

[0027] As Figure 1 and Figure 2 shown, a nail rotating fastening device includes a guide nail tube kit 1. The guide nail tube kit 1 at least includes a directional nail tube 3. The directional nail tube 3 is detachably connected to the nail tube of the nail gun, can be matched with the nail tube at the front end of the existing nail gun, is universal with the nail tubes of nail guns of the same specification, and has high interchangeability. A loading channel for loading nails is provided inside the directional nail tube 3; at least one spiral groove 31 is provided on the inner wall of the loading channel. The spiral groove 31 is adapted to the guide convex block 21 at the tail end of the nail. Under the cooperation of the spiral groove 31 and the guide convex block 21 on the nail, the shot nail rotates. The nail 2 is loaded into the directional nail tube 3. The tail end of the nail 2 has a guide convex block 21 that slidably cooperates with the spiral groove 31. The guide convex block 21 at the tail end of the nail 2 is aligned with the spiral groove 31. The nail 2 is inserted into the directional nail tube 3 from the front end of the directional nail tube 3. The spiral groove 31 extends axially from the front end of the directional nail tube 3. When the piston rod of the nail gun strikes the nail 2, the spiral groove 31 plays a guiding role, enabling the nail 2 to be shot into the substrate in a rotating manner.

[0028] Embodiment 2:

[0029] As Figure 1 、Figure 2 , Figure 3 and Figure 4 As shown in Figure 2 , Figure 3 , and Figure 4 , based on the nail shooting and rotating fastening device in Embodiment 1, in this embodiment, the spiral groove 31 penetrates through the inner wall and the outer wall of the guiding nail tube 3. The guiding nail tube kit 1 further includes a nail tube sleeve 4. At this time, when the guiding nail tube 3 shoots the nail 2 into the substrate, a reverse torque will be generated. To prevent the guiding nail tube 3 from being deformed and opened along the spiral groove 31, a nail tube sleeve 4 is sleeved outside the guiding nail tube 3, and the inner diameter of the nail tube sleeve 4 matches the outer diameter of the guiding nail tube 3.

[0030] Embodiment 3:

[0031] As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in Figure 1 , Figure 2 , Figure 3 , and Figure 4 , based on the nail shooting and rotating fastening device in Embodiment 1, in this embodiment, the number of the spiral grooves 31 is two, and the two spiral grooves 31 are circumferentially distributed on the guiding nail tube 3.

[0032] The spiral groove 31 on the guiding nail tube 3 penetrates through the inner wall and the outer wall of the guiding nail tube 3, so that the inner wall and the outer wall of the guiding nail tube 3 are connected. At this time, when the guiding nail tube 3 shoots the nail 2 into the substrate, a reverse torque will be generated. To prevent the guiding nail tube 3 from being deformed and opened along the opening of the spiral groove 31, a nail tube sleeve 4 is sleeved outside the guiding nail tube 3, and the inner diameter of the nail tube sleeve 4 matches the outer diameter of the guiding nail tube 3.

[0033] Embodiment 4:

[0034] Based on the nail shooting and rotating fastening device in Embodiment 2 or Embodiment 3, the spiral groove 31 on the guiding nail tube 3 penetrates through the inner wall and the outer wall of the guiding nail tube 3, so that the inner wall and the outer wall of the nail tube are connected. At this time, when the guiding nail tube 3 shoots the nail 2 into the substrate, a reverse torque will be generated. To prevent the guiding nail tube 3 from being deformed and opened along the opening of the spiral groove 31, a nail tube sleeve 4 is sleeved outside the guiding nail tube 3, and the inner diameter of the nail tube sleeve 4 matches the outer diameter of the guiding nail tube 3.

[0035] During implementation, the guide nail tube kit 1 further includes a limit clip 5 and an outer sleeve 6. At least one limit slot 32 is provided at the front ends of the directional nail tube 3 and the nail tube sleeve 4. The front end of the limit clip 5 has a limit block 51 that corresponds to and cooperates with the limit slot 32. The limit clip 5 is coaxially sleeved on the front end of the nail tube sleeve 4. The limit block 51 extends radially inward along the limit clip 5 and is engaged with the limit slots 32 on the directional nail tube 3 and the nail tube sleeve 4. The outer sleeve 6 is coaxially sleeved on the outer wall of the limit clip 5. The rear end of the outer sleeve 6 is connected to the nail tube sleeve 4 and restricts the axial movement of the limit clip 5. The inner diameter of the limit clip 5 matches the outer diameter of the nail tube sleeve 4, and the inner diameter of the outer sleeve 6 matches the outer diameter of the limit clip 5. After the limit clip 5 and the limit slots 32 of the nail tube sleeve 4 are aligned, the limit block 51 is clamped in the limit slot 32. The rear end of the outer sleeve 6 is sleeved on the limit clip 5 from the front end of the limit clip 5. Through the setting of the inner ring platform and the outer ring platform, the limit clip 5 is limited and fixed to prevent the limit clip 5 from detaching from the nail tube sleeve 4. The rear end of the outer sleeve 6 is connected to the outer wall of the nail tube sleeve 4. The limit clip 5 makes the directional nail tube 3 relatively fixed to the outer sleeve 6, and its function is to enhance the anti-torsion force of the directional nail tube 3.

[0036] During specific implementation, the rear end of the directional nail tube 3 is threadedly connected to the nail tube of the nail gun, the nail tube sleeve 4 is threadedly connected to the directional nail tube 3, and the outer sleeve 6 is threadedly connected to the nail tube sleeve 4. The rear end of the directional nail tube 3 has an external thread, the internal thread on the nail tube sleeve 4 is threadedly connected to the external thread on the outer wall of the directional nail tube 3, and the internal thread of the outer sleeve 6 is threadedly connected to the external thread on the outer wall of the nail tube sleeve 4.

[0037] Preferably, there are two limit slots 32 on both the directional nail tube 3 and the nail tube sleeve 4. The limit block 51 at the front end of the limit clip 5 extends radially inward. The two limit slots 32 are respectively located between the two spiral grooves 31, that is, the two spiral grooves 31 and the two limit slots 32 are circumferentially evenly distributed on the directional nail tube 3.

[0038] During implementation, in traditional fastening operations, due to the smooth surface of the nail 2, the friction force does not meet the required load, which may cause the nail 2 to loosen and the fastener to fall out, thus posing a danger. Barbs 22 are formed on the circumferential side wall of the nail body of the nail 2. The barbs 22 are inclined from one side of the nail body towards the nail head direction, which facilitates the nail 2 to be shot into the substrate in a rotational insertion manner. The pulling force exerted by the nail 2 is the frictional force between the surface of the nail 2 and the substrate. Through the setting of the barbs 22, the frictional force between the nail 2 and the substrate can be effectively increased. When the nail 2 is struck or pushed into the substrate, the barbs 22 will insert into the substrate, forming additional resistance, making it more difficult for the nail 2 to be moved or pulled out, thereby improving the fixing effect; at the same time, when the nail body of the nail 2 has barbs 22, it is easier to shoot the nail 2 into the substrate by a screwing-in method.

[0039] The nail 2 with barbs 22 can penetrate into the substrate more effectively when the nail tail is struck by using this easy-to-penetrate method. The volume of the barbs 22 is small, avoiding difficult screwing in. After being shot into the substrate, a reliable connection is achieved, and the firmness and stability of the nail 2 in the substrate such as a wall are ensured. When applicable to ordinary nails 2, the ordinary nails can be loaded into the directional nail tube 3 and nailed into the substrate in a straight-in manner.

[0040] The working principle is as follows:

[0041] This device is installed at the front end of a compatible nail gun. Through the threaded connection of the directional nail tube 3, the special nail is completely placed through the symmetric spiral grooves 31 opened inside the directional nail tube 3. The nail gun with this device is aligned with the workpiece to be connected and the substrate. The striking rod of the nail gun quickly strikes to push the special nail, and the special nail is spirally driven into the substrate through the interaction with the spiral grooves 31. There are two symmetric small protrusions in front of the special nail, which interact with the substrate after being spirally driven into the substrate to play a role in preventing loosening and backing out. After shooting, replace the next special nail and repeat the above steps.

[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A nail shooting and rotating fastening device, characterized in that, It includes a guide nail tube kit (1), and the guide nail tube kit (1) at least includes a directional nail tube (3). A loading channel for loading a nail (2) is provided in the directional nail tube (3). At least one spiral groove (31) is formed on the inner wall of the loading channel. The spiral groove (31) is adapted to a guiding projection (21) at the tail end of the nail (2). Under the cooperation of the spiral groove (31) and the guiding projection (21) on the nail (2), the fired nail (2) rotates.

2. The nail shooting and rotating fastening device according to claim 1, wherein, The number of the spiral grooves (31) is two.

3. The nail shooting and rotating fastening device according to claim 1 or 2, characterized in that, The spiral groove (31) penetrates through the inner wall and the outer wall of the directional nail tube (3).

4. The nail shooting and rotating fastening device according to claim 3, wherein, The guide nail tube kit (1) further includes a nail tube sleeve (4), and the nail tube sleeve (4) is coaxially sleeved on the directional nail tube (3).

5. The nail shooting and rotating fastening device according to claim 4, characterized in that, The inner diameter of the nail tube sleeve (4) matches the outer diameter of the directional nail tube (3).

6. The nail shooting and rotating fastening device according to claim 4, characterized in that The guide nail tube kit (1) further includes a limit clip (5) and an outer sleeve (6). At least one limit card slot (32) is provided at the front ends of the directional nail tube (3) and the nail tube sleeve (4). The front end of the limit clip (5) has a limit block (51) corresponding to and cooperating with the limit card slot (32). The limit clip (5) is coaxially sleeved on the front end of the nail tube sleeve (4). The limit block (51) extends radially inwards along the limit clip (5) and is clamped with the limit card slot (32) on the directional nail tube (3) and the nail tube sleeve (4). The outer sleeve (6) is coaxially sleeved on the outer wall of the limit clip (5). The rear end of the outer sleeve (6) is connected to the nail tube sleeve (4) and limits the axial movement of the limit clip (5).

7. The nail shooting and rotating fastening device according to claim 6, wherein, The rear end of the limit clip (5) has an outer ring platform extending radially outwards, and the front end of the outer sleeve (6) has an inner ring platform extending radially inwards. The inner diameter of the inner ring platform is smaller than the outer diameter of the outer ring platform.

8. The nail shooting and rotary fastening device according to claim 6 or 7, characterized in that, There are two limit card slots (32) on both the directional nail tube (3) and the nail tube sleeve (4). The limit block (51) at the front end of the limit clip (5) extends radially inwards.

9. The nail shooting and rotating fastening device according to claim 7, wherein, The rear end of the directional nail tube (3) is threadedly connected to the nail tube of the nail gun, the nail tube sleeve (4) is threadedly connected to the directional nail tube (3), and the outer sleeve (6) is threadedly connected to the nail tube sleeve (4).

10. The nail shooting and rotating fastening device according to claim 1, characterized in that, Barbs (22) are formed on the circumferential side wall of the body of the nail (2), and the barbs (22) incline towards the nail head along one side of the nail body.

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