A nail shooting rotary fastening device

Abstract

The utility model belongs to the technical field of fastener, especially a kind of nail shooting rotary fastening device, in the use process of existing rotary fastening device, need special nail shooting, and then lead to lower applicability, and spiral groove is easy to wear, affect service life's problem, present and propose following scheme, it includes connecting sleeve and nail pipe cover, one end of connecting sleeve and the one end of nail pipe cover fixed connection, directional nail pipe is fixedly installed in nail pipe cover;Still include: annular cover plate, annular cover plate fixed mounting is in the other end of nail pipe cover;Movable guide pillar, movable guide pillar sliding installation is in directional nail pipe, and the through slot is set up in movable guide pillar;Sliding block, sliding block is provided with two, the utility model discloses adjustable sliding block and the movable guide pillar of ball are set, can adjust the shooting mode of shooting nail, utilize the rolling fit of ball and spiral groove effectively reduced wear simultaneously, to have good versatility and longer service life.

Description

Technical Field

[0001] This application relates to the field of fastener technology, and in particular to a nail rotary fastening device. Background Technology

[0002] In construction, nail guns are used to drive nails into the substrate to secure fasteners. Common nail guns allow the nails to penetrate quickly, but the nails are in a free state during their movement and their posture is not fixed. This means that when the nail tail is struck, it only slides axially, resulting in poor nail head penetration into the wall; a larger impact force is required to achieve a proper connection.

[0003] Patent document CN223115122U discloses a nail rotation fastening device, including a guide nail tube assembly. The guide nail tube assembly includes at least a directional nail tube with a loading channel for loading the nail. At least one spiral groove is formed on the inner wall of the loading channel, which is adapted to a guide protrusion at the tail end of the nail. Under the combined action of the spiral groove and the guide protrusion on the nail, the fired nail rotates. This easy-drive method allows for more effective penetration into the substrate when the nail tail is struck, achieving a reliable connection and ensuring the nail's firmness and stability within a substrate such as a wall.

[0004] However, the aforementioned patent documents require special nails during use, which leads to low applicability and easy wear of the spiral groove, affecting service life. Therefore, we propose a nail rotation fastening device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing rotary fastening devices, which require specialized nails during use, resulting in low applicability and easy wear of the spiral groove, affecting service life. Therefore, this invention proposes a rotary fastening device for nails.

[0006] The nail rotary fastening device provided in this application adopts the following technical solution: A nail-driving and fastening device includes a connecting sleeve and a nail tube sleeve, one end of the connecting sleeve and one end of the nail tube sleeve are fixedly connected, and a directional nail tube is fixedly installed inside the nail tube sleeve; it also includes: An annular cover plate is fixedly installed at the other end of the nail tube sleeve. The movable guide post is slidably installed inside the directional nail tube, and a through groove is provided on the movable guide post. The slider has two parts. The outer side of the movable guide post has two symmetrical sliding grooves. The two sliders are slidably installed in the two sliding grooves respectively. An adjustment mechanism is set in the groove to adjust the position of the two sliders.

[0007] Furthermore, both the nail tube sleeve and the directional nail tube have two mounting holes, and a first fastening bolt is threaded into each of the two mounting holes. Two slots are provided on the outer side of the movable guide post, and the two first fastening bolts cooperate with the two slots respectively. When the first fastening bolts are engaged with the slots, the first fastening bolts can position the movable guide post.

[0008] Furthermore, the adjustment mechanism includes a bidirectional lead screw, and the top inner wall and bottom inner wall of the through groove are provided with first through holes. The two first through holes are respectively connected to two sliding grooves. The bidirectional lead screw is rotatably installed in the two first through holes. The bidirectional lead screw is threadedly connected to two sliders. When the bidirectional lead screw rotates, the bidirectional lead screw can drive the two sliders to move towards each other.

[0009] Furthermore, a worm wheel is fixedly installed on the outer side of the bidirectional lead screw. The worm wheel meshes with the worm. When the worm rotates, the worm drives the worm wheel to rotate.

[0010] Furthermore, a second through hole is provided on one side of the inner wall of the through groove, and a worm gear is rotatably installed in the second through hole. One end of the worm gear is provided with a hexagonal groove, which is used to fit a hexagonal wrench.

[0011] Furthermore, the annular cover plate has multiple mounting holes, each of which is rotatably fitted with a second fastening bolt. One side of the nail sleeve has multiple threaded grooves that mate with the second fastening bolts.

[0012] Furthermore, the inner wall of the directional nail tube has two spiral grooves, and each of the two sliders has a ball groove. A ball is movably installed in each of the two ball grooves, and the two balls cooperate with the two spiral grooves respectively. By the arrangement of the balls cooperating with the spiral grooves, the wear of the spiral grooves can be effectively reduced.

[0013] In summary, this application includes at least one of the following beneficial technical effects: 1. This solution, by setting up a movable guide post with an adjustable slider and using an adjustment mechanism composed of a worm, worm wheel and double lead screw, can easily adjust the distance between the balls on the two sliders, so that the device can adapt to and guide universal nails with different nail rod diameters, and give them rotational motion when the nail is fired, thereby greatly improving the versatility and applicability of the device and reducing the dependence on special nails. 2. This solution incorporates movable balls on the slider, allowing the lateral force of the nail to be transmitted primarily through rolling friction between the balls and the spiral grooves on the inner wall of the directional nail tube as the nail rotates forward. This transforms traditional sliding friction into rolling friction, significantly reducing wear on the spiral groove working surface and effectively extending the service life of the directional nail tube and the entire device.

[0014] This invention, by setting a movable guide post with an adjustable slider and ball bearings, can adjust the nail injection method while effectively reducing wear by utilizing the rolling cooperation of the ball bearings and the spiral groove, thus combining good versatility with a longer service life. Attached Figure Description

[0015] Figure 1 This is a front view structural schematic diagram of a nail-driving and fastening device proposed in this utility model; Figure 2 This is a cross-sectional structural schematic diagram of a nail-rotating fastening device proposed in this utility model; Figure 3 This is a schematic diagram of the adjustment mechanism of a nail-driving fastening device proposed in this utility model.

[0016] Reference numerals: 1. Connecting sleeve; 2. Nail tube sleeve; 3. Annular cover plate; 4. Second fastening bolt; 5. First fastening bolt; 6. Directional nail tube; 7. Spiral groove; 8. Movable guide post; 9. Through groove; 10. Slider; 11. Slot; 12. Worm; 13. Worm wheel; 14. Two-way lead screw; 15. Ball bearing. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0018] Reference Figures 1-3 A nail rotating fastening device includes a connecting sleeve 1 and a nail tube sleeve 2, one end of the connecting sleeve 1 and one end of the nail tube sleeve 2 are fixedly connected, and a directional nail tube 6 is fixedly installed inside the nail tube sleeve 2; it also includes: Annular cover plate 3 is fixedly installed at the other end of nail tube sleeve 2; The movable guide post 8 is slidably installed inside the directional nail tube 6, and a through groove 9 is provided on the movable guide post 8; There are two sliders 10. The outer side of the movable guide post 8 has two symmetrical sliding grooves. The two sliders 10 are slidably installed in the two sliding grooves respectively. An adjustment mechanism is provided in the through groove 9. The adjustment mechanism is used to adjust the position of the two sliders 10.

[0019] In this embodiment, both the nail tube sleeve 2 and the directional nail tube 6 have two mounting holes, and a first fastening bolt 5 is threaded into each of the two mounting holes. Two slots 11 are provided on the outer side of the movable guide post 8, and the two first fastening bolts 5 respectively cooperate with the two slots 11. When the first fastening bolts 5 are engaged with the slots 11, the first fastening bolts 5 can position the movable guide post 8. A second through hole is provided on one side of the inner wall of the through groove 9, and a worm gear 12 is rotatably installed in the second through hole. One end of the worm gear 12 has a hexagonal groove, which is used to fit a hexagonal wrench. Two spiral grooves 7 are provided on the inner wall of the directional nail tube 6. Ball grooves are provided on both sliders 10, and ball bearings 15 are movably installed in both ball grooves. The two ball bearings 15 respectively cooperate with the two spiral grooves 7. By setting the ball bearings 15 to cooperate with the spiral grooves 7, the wear of the spiral grooves 7 can be effectively reduced.

[0020] In this embodiment, the adjustment mechanism includes a bidirectional lead screw 14. The top and bottom inner walls of the through groove 9 are provided with first through holes, which are respectively connected to two sliding grooves. The bidirectional lead screw 14 is rotatably installed in the two first through holes. The bidirectional lead screw 14 is threadedly connected to the two sliders 10. When the bidirectional lead screw 14 rotates, it can drive the two sliders 10 to move towards each other. A worm gear 13 is fixedly installed on the outside of the bidirectional lead screw 14. The worm gear 13 meshes with the worm 12. When the worm 12 rotates, it drives the worm gear 13 to rotate. The annular cover plate 3 is provided with multiple mounting holes, and a second fastening bolt 4 is rotatably installed in each of the multiple mounting holes. A multiple threaded groove is provided on one side of the nail sleeve 2, and the threaded groove cooperates with the second fastening bolt 4.

[0021] The implementation principle of the nail rotation fastening device in this application embodiment is as follows: During use, when adapting to different nail insertion methods, tighten the two first fastening bolts 5 so that their ends engage in the slots 11 of the movable guide post 8, thereby locking the relative positions of the movable guide post 8 and the slider 10 assembly. Insert a hexagonal wrench into the hexagonal groove at the end of the worm gear 12 and rotate it. The worm gear 12 drives the meshing worm wheel 13 to rotate, and the worm wheel 13 drives the bidirectional lead screw 14 to rotate synchronously. Because the two sliders 10 are engaged with the two reverse threads of the bidirectional lead screw 14, the rotation of the bidirectional lead screw 14 will drive the two sliders 10 to move in opposite or opposite directions within the groove of the movable guide post 8, thereby adjusting the distance between the two balls 15 (the distance between the balls 15 and the screw thread). When the spiral groove 7 is in contact, it is a spiral injection method; when the ball 15 is separated from the spiral groove 7, it is a straight injection method. After adjustment, the shank of the universal nail is placed into the shaped nail tube 6, and the tail of the nail abuts against the movable guide post 8. When the nail moves forward under axial impact force, the ball 15 is forced to roll along the preset spiral groove 7 on the inner wall of the directional nail tube 6. The rolling motion of the ball 15 is transmitted to the nail shank through friction, forcing the nail to generate a rotational motion around its axis while moving forward in a straight line. This rotational forward motion makes it easier for the nail head to penetrate the substrate (such as a wall), achieving a better fastening effect. Furthermore, due to the rolling contact, the wear on the spiral groove 7 is reduced. The entire device is connected and fixed to the nail gun body through the connecting sleeve 1. Example

[0022] The difference between this embodiment and embodiment one is that a magnetic block is fixedly installed inside the movable guide post 8. The magnetic block can attract the nail and make it effectively follow the movable guide post 8 to rotate.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A nail-driving and fastening device, comprising a connecting sleeve (1) and a nail tube sleeve (2), characterized in that: One end of the connecting sleeve (1) is fixedly connected to one end of the nail tube sleeve (2), and a directional nail tube (6) is fixedly installed inside the nail tube sleeve (2); it also includes: An annular cover plate (3) is fixedly installed at the other end of the nail tube sleeve (2); Movable guide post (8) is slidably installed inside the directional nail tube (6), and a through groove (9) is provided on the movable guide post (8); There are two sliders (10). The outer side of the movable guide post (8) is provided with two symmetrical sliding grooves. The two sliders (10) are slidably installed in the two sliding grooves respectively. An adjustment mechanism is provided in the through groove (9). The adjustment mechanism is used to adjust the position of the two sliders (10).

2. The nail-driving and fastening device according to claim 1, characterized in that: The inner wall of the directional nail tube (6) has two spiral grooves (7), and each of the two sliders (10) has a ball groove. Each of the two ball grooves has a ball (15) installed in it, and the two balls (15) cooperate with the two spiral grooves (7) respectively.

3. The nail-driving and fastening device according to claim 2, characterized in that: Both the nail tube sleeve (2) and the directional nail tube (6) have two mounting holes, and the first fastening bolts (5) are threaded into the two mounting holes. The movable guide post (8) has two slots (11) on its outer side, and the two first fastening bolts (5) are respectively matched with the two slots (11).

4. The nail-driving and fastening device according to claim 3, characterized in that: The annular cover plate (3) has multiple mounting holes, and a second fastening bolt (4) is rotatably installed in each of the multiple mounting holes. A multiple threaded groove is provided on one side of the nail sleeve (2), and the threaded groove cooperates with the second fastening bolt (4).

5. The nail-driving and fastening device according to claim 4, characterized in that: The adjustment mechanism includes a bidirectional lead screw (14), and the top inner wall and bottom inner wall of the through groove (9) are provided with first through holes. The two first through holes are respectively connected to two sliding grooves. The bidirectional lead screw (14) is rotatably installed in the two first through holes. The bidirectional lead screw (14) is threadedly connected to two sliders (10).

6. The nail-driving and fastening device according to claim 5, characterized in that: A second through hole is provided on one side of the inner wall of the through groove (9), and a worm (12) is rotatably installed in the second through hole. A hexagonal groove is provided at one end of the worm (12).

7. The nail-driving and fastening device according to claim 6, characterized in that: A worm gear (13) is fixedly installed on the outer side of the bidirectional lead screw (14), and the worm gear (13) meshes with the worm (12).

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