Coil nail capable of preventing cap from falling off

Abstract

The utility model relates to the technical field of coil nails, and discloses a cap falling prevention coil nail which comprises a shell, two annular grooves are formed in the surface of the shell, a connecting column is fixedly connected to the inner diameter of the shell, a rubber pad is fixedly connected to the interior of the connecting column, and a reinforcing core is arranged at the top of the connecting column. The bottom end of the reinforcing core penetrates through and extends into the connecting column, two inner clamping grooves are formed in the inner diameter of the connecting column, a tooth-shaped ring is fixedly connected to the surface of the reinforcing core, and outer clamping grooves are formed in the surfaces of the tooth-shaped ring and the reinforcing core. According to the utility model, through the connecting column, the reinforcing core, the circular tooth groove, the tooth-shaped ring, the outer ring teeth, the inner ring teeth, the first clamp spring, the second clamp spring and the rubber pad, buffering is realized when the rubber pad is strongly impacted, and continuous resistance points are formed by zigzag inverted buckles, are uniformly distributed, and effectively resist pull-out forces in all directions; the problem that an existing coil nail cap is prone to falling off is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coil nails, in particular to a cap-drop-proof coil nail. Background Art

[0002] Coiled nails are commonly used in the construction, carpentry, and packaging industries. They are fasteners that can be fixed and connected quickly and efficiently. In the early days, nails were relatively simple in form, mostly straight nails, which needed to be nailed in one by one when used, which was inefficient. With the development of industrial technology, coiled nails came into being in order to improve construction efficiency and convenience.

[0003] Traditional coil nails often face the problem of nail caps falling off during use, which brings many inconveniences and safety hazards to construction and production. In the existing coil nail design, the connection structure between the nail cap and the nail body is relatively simple, and is only fixed by simple stamping or welding. This connection method will cause fatigue and damage to the connection part after being subjected to large impact force, vibration or long-term use, causing the nail cap to fall off. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a cap-drop-proof roll nail, which aims to improve the problem that the nail cap of the existing roll nail is easy to fall off when subjected to a large impact force.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an anti-cap falling roll nail, comprising an outer shell, a surface of the outer shell is provided with two annular grooves, the inner diameter of the outer shell is fixedly connected to a connecting column, the inner side of the connecting column is fixedly connected to a rubber pad, a reinforcing core is provided at the top of the connecting column, the bottom of the reinforcing core passes through and extends into the interior of the connecting column, the inner diameter of the connecting column is provided with two inner grooves, the surface of the reinforcing core is fixedly connected to a toothed ring, the toothed ring and the surface of the reinforcing core are both provided with outer grooves, a second retaining spring is provided between the inner groove and the outer groove at the top, a first retaining spring is provided between the inner groove and the outer groove at the bottom, the top of the inner diameter of the connecting column is fixedly connected to a circular tooth groove, the circular tooth groove and the toothed ring are meshed with each other, the top of the outer shell surface is fixedly connected to an outer ring tooth, the top of the outer ring tooth is provided with an outer ring, the inner diameter of the outer ring is fixedly connected to the inner ring tooth, and a connecting component is provided on the rear side of the shell, and the connecting component is used to connect the nails into a roll.

[0006] Preferably, the connecting assembly includes an annular buckle, which is arranged in an annular groove, a connecting block is fixedly connected to the rear side of the annular buckle, a rotating block is fixedly connected to the left side of the connecting block, and a connecting piece is fixedly connected to the right side of the connecting block.

[0007] Preferably, the surface of the shell is provided with threads.

[0008] Preferably, the inner ring teeth and the outer ring teeth are meshed with each other.

[0009] Preferably, a nail cap is fixedly connected to the top of the outer ring, and the bottom center of the nail cap is fixedly connected to the reinforcement core.

[0010] Preferably, a cross groove is provided on the top of the nail cap.

[0011] Preferably, four evenly distributed fixing blocks are fixedly connected to the top of the connecting column, and the four fixing blocks extend upward and penetrate to the top of the nail cap.

[0012] Preferably, a cone head is fixedly connected to the bottom of the connecting column.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, by connecting the column and the reinforcing core, the circular tooth groove and the toothed ring, the outer ring teeth and the inner ring teeth, and the first and second retaining springs and the rubber pad, the rubber pad is cushioned when a strong impact is made, and the serrated undercut forms continuous resistance points with uniform distribution, effectively resisting the effect of the escape force in all directions, thereby solving the problem that the existing coil nail cap is easy to fall off.

[0015] 2. In the present invention, the ring buckles on the connecting block and the front side, the rotating blocks and the connecting pieces on both sides, and the ring grooves on the surface of the shell are used to fix the nails using the ring buckles to prevent dislocation, unevenness up and down, and different left and right spacing. This solves the problem that the existing coil nails are connected by copper wire, which is soft in material and may cause dislocation, unevenness up and down, and different left and right spacing during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a main diagram of an anti-cap-dropping coil nail proposed in the utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of a cap-loosening prevention coil nail proposed by the present invention;

[0018] Figure 3 This is a schematic diagram of a disassembled cross-section of a cap-loosening prevention coil nail proposed in the present invention;

[0019] Figure 4 This is a schematic diagram of a connection assembly for an anti-cap-dropping coil nail proposed in the present invention;

[0020] Figure 5 The utility model proposed Figure 3 Enlarged schematic diagram of point A in the middle.

[0021] Legend:

[0022] 1. Outer casing; 2. Thread; 3. Nail cap; 4. Outer ring; 5. Annular groove; 6. Cross groove; 7. Cone head; 8. Reinforcement core; 9. First retaining spring; 10. Second retaining spring; 11. Toothed ring; 12. Outer retaining groove; 13. Outer ring teeth; 14. Inner ring teeth; 15. Rubber pad; 16. Fixed block; 17. Circular tooth groove; 18. Connecting column; 19. Connecting block; 20. Rotating block; 21. Connecting piece; 22. Ring buckle; 23. Inner retaining groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings of the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Reference Figure 1-5 The utility model provides an embodiment: an anti-drop cap roll nail, including a shell 1, two annular grooves 5 are provided on the surface of the shell 1, a connecting column 18 is fixedly connected to the inner diameter of the shell 1, a rubber pad 15 is fixedly connected to the inside of the connecting column 18, a reinforcing core 8 is provided on the top of the connecting column 18, the bottom end of the reinforcing core 8 passes through and extends to the inside of the connecting column 18, two inner card grooves 23 are provided on the inner diameter of the connecting column 18, a toothed ring 11 is fixedly connected to the surface of the reinforcing core 8, and both the toothed ring 11 and the reinforcing core 8 have outer card grooves. 12. A second retaining spring 10 is provided between the inner slot 23 and the outer slot 12 at the top, and a first retaining spring 9 is provided between the inner slot 23 and the outer slot 12 at the bottom. The inner diameter top of the connecting column 18 is fixedly connected with a round tooth groove 17, and the round tooth groove 17 and the toothed ring 11 are engaged with each other. The top of the surface of the outer shell 1 is fixedly connected with an outer ring tooth 13, and the top of the outer ring tooth 13 is provided with an outer ring 4. The inner diameter of the outer ring 4 is fixedly connected with an inner ring tooth 14. A connecting component is provided on the rear side of the outer shell 1, and the connecting component is used to connect the nails into a roll.

[0025] The rubber pad 15 is used to buffer the downward force of the nail cap 3. The contact surface between the circular tooth groove 17 and the toothed ring 11 is a plurality of triangles. The triangle undercut has a sharp top angle, which can quickly embed into the surrounding material when subjected to outward pulling force, generating strong resistance. The first retaining spring 9 and the second retaining spring 10 are annular, and the annular retaining spring provides uniform circumferential restraint force.

[0026] Reference Figure 4 The connecting assembly includes an annular buckle 22, which is arranged in the annular groove 5. The rear side of the annular buckle 22 is fixedly connected to the connecting block 19, the left side of the connecting block 19 is fixedly connected to the rotating block 20, and the right side of the connecting block 19 is fixedly connected to the connecting piece 21.

[0027] The annular buckle 22 can buckle the shell 1 along the annular groove 5 on the surface thereof to prevent the rolled nail from being uneven. The rotating block 20 can be rotatably connected to the connecting member 21 to roll up and store the nail.

[0028] Reference Figure 1 , a thread 2 is provided on the surface of the shell 1.

[0029] The coil nail with thread 2 can provide stronger grip and fastening force, and is suitable for occasions with higher fixing requirements.

[0030] Reference Figure 3 The inner ring teeth 14 and the outer ring teeth 13 are meshed with each other.

[0031] The contact surface between the outer ring teeth 13 and the inner ring teeth 14 is serrated, and the undercuts of the serrated form continuous resistance points that are evenly distributed and effectively resist the escape force in all directions.

[0032] Reference Figure 1 The top of the outer ring 4 is fixedly connected with a nail cap 3, and the bottom center of the nail cap 3 is fixedly connected to the reinforcing core 8.

[0033] Reference Figure 1 A cross groove 6 is provided on the top of the nail cap 3.

[0034] The cross slot 6 is convenient for twisting to fix and remove.

[0035] Reference Figure 3 The top of the connecting column 18 is fixedly connected with four evenly distributed fixing blocks 16 , which extend upward and pass through the top of the nail cap 3 .

[0036] The four fixing blocks 16 are used to drive the bottom structure to rotate when the top nail cap 3 is rotated.

[0037] Reference Figure 2 The bottom of the connecting column 18 is fixedly connected with a cone head 7.

[0038] The cone head 7 is easier to be embedded into an object during use.

[0039] Working principle: When in use, if a large resistance or impact force is encountered when nailing, the connection between the nail cap 3 and the nail body may be subjected to excessive stress, causing the nail cap 3 to fall off. The rubber pad 15 is used to buffer the downward force of the nail cap. The contact surface between the circular tooth groove 17 and the toothed ring 11 is a plurality of triangles. The triangle undercut has a sharp vertex angle, which can quickly embed into the surrounding material when subjected to outward tension, generating strong resistance to prevent the nail cap 3 from falling off. The first retaining spring 9 and the second retaining spring 10 are annular. The annular retaining spring provides uniform circumferential constraint force, which improves the stability and reliability of the coil nail when fixing objects. The contact surface of the outer ring teeth 13 and the inner ring teeth 14 is It is serrated, and the serrated undercut forms continuous resistance points that are evenly distributed and effectively resist the pull-out force in all directions. The annular buckle 22 can buckle it along the annular groove 5 on the surface of the shell 1 to prevent the rolled nail from being uneven. The rotating block 20 can be rotatably connected to the connecting piece 21 to roll up the nail for storage. The rolled nail with thread 2 can provide stronger gripping and fastening force, and is suitable for some occasions with high requirements for fixation. The cross groove 6 is convenient for twisting to fix and remove. The four fixing blocks 16 are used to drive the bottom structure to rotate when the top nail cap 3 is rotated. The cone head 7 is easier to embed into the object when in use.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cap-loosening prevention coil nail, comprising a housing (1), characterized in that: The surface of the shell (1) is provided with two annular grooves (5); the inner diameter of the shell (1) is fixedly connected to a connecting column (18); the interior of the connecting column (18) is fixedly connected to a rubber pad (15); a reinforcing core (8) is provided on the top of the connecting column (18); the bottom end of the reinforcing core (8) passes through and extends into the interior of the connecting column (18); the inner diameter of the connecting column (18) is provided with two inner grooves (23); the surface of the reinforcing core (8) is fixedly connected to a toothed ring (11); the surfaces of the toothed ring (11) and the reinforcing core (8) are both provided with outer grooves (12); the inner groove (23) on the top is connected to the outer groove (13); A second retaining spring (10) is provided between the outer slots (12), a first retaining spring (9) is provided between the inner slot (23) and the outer slot (12) at the bottom, a spherical tooth groove (17) is fixedly connected to the top of the inner diameter of the connecting column (18), the spherical tooth groove (17) and the toothed ring (11) are meshed with each other, an outer ring tooth (13) is fixedly connected to the top of the surface of the shell (1), an outer ring (4) is provided on the top of the outer ring tooth (13), and the inner diameter of the outer ring (4) is fixedly connected to the inner ring tooth (14), and a connecting component is provided on the rear side of the shell (1), and the connecting component is used to connect the nails into a roll.

2. The cap-loosening prevention coil nail according to claim 1, characterized in that: The connecting assembly comprises an annular buckle (22), the annular buckle (22) is arranged in an annular groove (5), a connecting block (19) is fixedly connected to the rear side of the annular buckle (22), a rotating block (20) is fixedly connected to the left side of the connecting block (19), and a connecting piece (21) is fixedly connected to the right side of the connecting block (19).

3. The cap-loosening prevention coil nail according to claim 1, characterized in that: The surface of the housing (1) is provided with threads (2).

4. The cap-loosening prevention coil nail according to claim 1, characterized in that: The inner ring teeth (14) and the outer ring teeth (13) are meshed with each other.

5. The cap-loosening prevention coil nail according to claim 1, characterized in that: The top of the outer ring (4) is fixedly connected to a nail cap (3), and the bottom center of the nail cap (3) is fixedly connected to the reinforcement core (8).

6. The cap-loosening prevention coil nail according to claim 5, characterized in that: A cross groove (6) is provided on the top of the nail cap (3).

7. The cap-loosening prevention coil nail according to claim 1, characterized in that: Four evenly distributed fixing blocks (16) are fixedly connected to the top of the connecting column (18), and the four fixing blocks (16) extend upward and penetrate to the top of the nail cap (3).

8. The cap-loosening prevention coil nail according to claim 1, characterized in that: The bottom of the connecting column (18) is fixedly connected with a cone head (7).

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