Self-locking steel nail structure

Abstract

The utility model discloses a self-locking steel nail structure which comprises a steel nail body, an assembling groove is formed in the end face of the steel nail body, a side hole is formed in the side wall of the assembling groove, a movable rod is connected to the interior of the assembling groove in a sliding mode, a movable groove is formed in the surface of the movable rod, and the movable groove is connected with the side hole in a sliding mode. A locking block is jointly arranged in the movable groove and the side hole, and a driving hole is formed in the surface of one end of the locking block; by means of the movable rod, the assembling groove, the movable groove, the driving hole and the driving shaft, the locking block and the movable rod are movably assembled in the steel nail body, after the steel nail body is nailed into an object, the movable rod is knocked to push the driving shaft to move, the driving shaft is matched with the driving hole, and therefore the steel nail can be conveniently assembled. When the steel nail is used, one end of the locking block is pushed to slide out of the side hole, so that the end of the locking block is embedded into an object, the steel nail body is locked, the steel nail cannot be loosened, and the fixing firmness is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel nails, and particularly relates to a self-locking steel nail structure. Background Technique

[0002] Steel nails, commonly known as foreign nails, refer to pointed hard metals, which are used for fixing wood and other objects. A hammer is used to drive the nails into the objects. Steel nails are a kind of fastening connectors with a relatively large usage amount in construction projects and are common hardware components. Due to the very wide uses of steel nails, there are various varieties and different shapes of steel nails on the market at present. The steel nails used for connecting hard wood, light wood keels with brick walls and cement mortar in the decoration industry. At present, the rods of the nails on the market are all cylindrical in shape, with a smooth surface and a consistent shape.

[0003] When the existing steel nails are used, they are driven into the interior of an object to achieve the fixation of the object. However, there are the following defects: (1) The surface of the existing steel nails is smooth. When they are driven into the interior of an object for use, they are prone to loosen from the object, resulting in the problem of unreliable nail driving and fixation. For this reason, we propose a self-locking steel nail structure. Content of the Utility Model

[0004] The purpose of the utility model is to provide a self-locking steel nail structure to solve the problem that the steel nails are prone to loosen when driven into an object, resulting in unreliable fixation as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A self-locking steel nail structure, including a steel nail body. An assembly groove is opened on the end face of the steel nail body. Side holes are opened on the side wall of the assembly groove. An activity rod is connected to the inside of the assembly groove in a sliding manner. Activity grooves are opened on the surface of the activity rod. A lock block is jointly arranged inside the activity grooves and the side holes. A driving hole is opened on one end surface of the lock block. A driving shaft is arranged inside the driving hole. The driving shaft is fixed on the inner wall of the activity groove.

[0006] Preferably, a magnetic attraction assembly is arranged between the end face of the lock block and the activity groove. The magnetic attraction assembly is composed of a first magnetic attraction plate and a second magnetic attraction plate. The first magnetic attraction plate is fixed on the end face of the lock block. The second magnetic attraction plate is fixed on the inner wall of the activity groove.

[0007] Preferably, the end face of the lock block is provided with a conical surface.

[0008] Preferably, a blocking groove is opened on the side wall of the lock block. A blocking block is arranged inside the blocking groove. The blocking block is fixed on the inner wall of the side hole.

[0009] Preferably, a through hole is opened on the surface of the blocking block. A strengthening rod penetrates through the inside of the through hole. The strengthening rod is fixed on the inner wall of the blocking groove.

[0010] Preferably, a movable sleeve is sleeved on the outer wall of the drive shaft, and the longitudinal sections of the movable sleeve and the drive shaft are both circular structures.

[0011] Preferably, the cross section of the movable rod is a rectangular structure, and the cross section of the assembly groove is a rectangular structure.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] (1) Through the designed movable rod, assembly groove, movable groove, drive hole and drive shaft, the lock block and the movable rod are movably assembled inside the steel nail body. After the steel nail body is nailed into an object, the movable rod is struck again to make the movable rod push the drive shaft to move. The drive shaft cooperates with the drive hole to push one end of the lock block out of the side hole, so that the end of the lock block is embedded into the object, realizing the locking of the steel nail body, so that the present utility model will not become loose, improving the fixing reliability. Through the designed magnetic attraction assembly, the magnetic attraction assembly is composed of a first magnetic attraction plate and a second magnetic attraction plate, and the two magnetic attraction plates are magnetically adsorbed and connected to realize the limit of the lock block, avoiding the lock block sliding out of the side hole and causing blockage when using the steel nail. Through the designed retaining groove and retaining block, the lock block is limited to avoid the lock block falling off from the side hole. Through the designed reinforcing rod, the extending part of the lock block is supported and strengthened to improve the locking strength. Through the designed movable sleeve, the movable sleeve can roll on the surface of the drive shaft, playing a lubricating role and reducing the influence of the frictional resistance on the movement of the drive shaft in the drive hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is of the present utility model Figure 1 The enlarged view at A in;

[0016] Figure 3 is a schematic structural diagram of the state where the lock block of the present utility model is pushed out of the steel nail body;

[0017] Figure 4 is a three-dimensional view of the movable rod of the present utility model;

[0018] Figure 5 is a three-dimensional view of the lock block of the present utility model;

[0019] In the figure: 1, steel nail body; 2, movable rod; 3, assembly groove; 4, magnetic attraction assembly; 5, drive shaft; 6, retaining groove; 7, retaining block; 8, side hole; 9, lock block; 10, reinforcing rod; 11, movable groove; 12, movable sleeve; 13, drive hole; 14, first magnetic attraction plate; 15, second magnetic attraction plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment

[0022] Please refer to Figures 1 to 5 , the present invention provides a technical solution: a self-locking steel nail structure, including a steel nail body 1. An assembly groove 3 is opened on the end face of the steel nail body 1, a side hole 8 is opened on the side wall of the assembly groove 3, and a movable rod 2 is connected inside the assembly groove 3 in a sliding manner. An activity groove 11 is opened on the surface of the movable rod 2, and a locking block 9 is jointly arranged inside the activity groove 11 and the side hole 8. A driving hole 13 is opened on one end surface of the locking block 9, and a driving shaft 5 is arranged inside the driving hole 13. Through the designed movable rod 2, assembly groove 3, activity groove 11, driving hole 13 and driving shaft 5, the locking block 9 and the movable rod 2 are movably assembled inside the steel nail body 1. After the steel nail body 1 is nailed into an object, the movable rod 2 is then struck, so that the movable rod 2 pushes the driving shaft 5 to move. The driving shaft 5 and the driving hole 13 cooperate to push one end of the locking block 9 to slide out of the side hole 8, so that the end of the locking block 9 is embedded into the object to realize the locking of the steel nail body 1, so that the present invention will not loosen and improve the fixing reliability. The driving shaft 5 is fixed on the inner wall of the activity groove 11.

[0023] In this embodiment, preferably, a magnetic attraction assembly 4 is arranged between the end face of the locking block 9 and the activity groove 11. The magnetic attraction assembly 4 is composed of a first magnetic attraction plate 14 and a second magnetic attraction plate 15. The first magnetic attraction plate 14 is fixed on the end face of the locking block 9. Through the designed magnetic attraction assembly 4, the magnetic attraction assembly 4 is composed of the first magnetic attraction plate 14 and the second magnetic attraction plate 15, and the two magnetic attraction plates are magnetically adsorbed and connected to realize the limit of the locking block 9, so as to avoid blocking caused by the locking block 9 sliding out of the side hole 8 when using the steel nail. The second magnetic attraction plate 15 is fixed on the inner wall of the activity groove 11.

[0024] In this embodiment, preferably, the end face of the lock block 9 is provided with a conical surface, and a retaining groove 6 is formed in the side wall of the lock block 9. A retaining block 7 is arranged inside the retaining groove 6. Through the designed retaining groove 6 and retaining block 7, the lock block 9 is limited to prevent the lock block 9 from falling off from the side hole 8. The retaining block 7 is fixed on the inner wall of the side hole 8, and a through hole is formed on the surface of the retaining block 7. A reinforcing rod 10 penetrates through the inside of the through hole. Through the designed reinforcing rod 10, the extended part of the lock block 9 is supported and strengthened to improve the locking strength. The reinforcing rod 10 is fixed on the inner wall of the retaining groove 6. A movable sleeve 12 is sleeved on the outer wall of the driving shaft 5. Through the designed movable sleeve 12, the movable sleeve 12 can roll on the surface of the driving shaft 5, playing a lubricating role and reducing the influence of frictional resistance when the driving shaft 5 moves in the driving hole 13. The longitudinal sections of the movable sleeve 12 and the driving shaft 5 are both circular structures, the cross section of the movable rod 2 is a rectangular structure, and the cross section of the assembly groove 3 is a rectangular structure.

[0025] The working principle and usage process of the present utility model: The lock block 9 and the movable rod 2 of the present utility model are movably assembled inside the steel nail body 1, and a magnetic attraction assembly 4 is composed of a first magnetic attraction plate 14 and a second magnetic attraction plate 15. The two magnetic attraction plates are magnetically adsorbed and connected to limit the lock block 9, preventing the lock block 9 from sliding out of the side hole 8 and causing obstruction when using the steel nail. After the steel nail body 1 is nailed into an object, the movable rod 2 is then struck, causing the movable rod 2 to push the driving shaft 5 to move. The driving shaft 5 cooperates with the driving hole 13 to push one end of the lock block 9 to slide out of the side hole 8, so that the end of the lock block 9 is embedded into the object, realizing the locking of the steel nail body 1, preventing the present utility model from loosening and improving the fixing reliability.

[0026] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A self-locking steel nail structure, comprising a steel nail body (1), characterized in that: The end surface of the steel nail body (1) is provided with an assembly groove (3), the side wall of the assembly groove (3) is provided with a side hole (8), the interior of the assembly groove (3) is connected with a movable rod (2) by sliding, the surface of the movable rod (2) is provided with an movable groove (11), the interior of the movable groove (11) and the side hole (8) are jointly provided with a locking block (9), one end surface of the locking block (9) is provided with a driving hole (13), the interior of the driving hole (13) is provided with a driving shaft (5), and the driving shaft (5) is fixed on the inner wall of the movable groove (11).

2. A self-locking steel nail structure according to claim 1, characterized in that: A magnetic attraction component (4) is arranged between the end surface of the locking block (9) and the movable groove (11), and the magnetic attraction component (4) is composed of a first magnetic attraction plate (14) and a second magnetic attraction plate (15), wherein the first magnetic attraction plate (14) is fixed on the end surface of the locking block (9), and the second magnetic attraction plate (15) is fixed on the inner wall of the movable groove (11).

3. A self-locking steel nail structure according to claim 1, characterized in that: The end surface of the locking block (9) is provided with a conical surface.

4. A self-locking steel nail structure according to claim 3, characterized in that: A retaining groove (6) is provided on the side wall of the locking block (9), a retaining block (7) is arranged inside the retaining groove (6), and the retaining block (7) is fixed on the inner wall of the side hole (8).

5. A self-locking steel nail structure according to claim 4, characterized in that: A through hole is provided on the surface of the stopper (7), a reinforcing rod (10) passes through the interior of the through hole, and the reinforcing rod (10) is fixed on the inner wall of the stop groove (6).

6. A self-locking steel nail structure according to claim 1, characterized in that: The outer wall of the driving shaft (5) is provided with a movable sleeve (12), and the longitudinal sections of the movable sleeve (12) and the driving shaft (5) are both circular structures.

7. The self-locking steel nail structure according to claim 1, characterized in that: The cross section of the movable rod (2) is a rectangular structure, and the cross section of the assembling groove (3) is a rectangular structure.

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