A high-strength nail

Abstract

The utility model discloses a high strength shoots a nail, belongs to the technical field of building fastener. The high strength shoots a nail including nail body, nail tip and nail cap. The outer peripheral surface of nail body is integrally formed with the friction enhancement structure that is composed of the staggered arrangement of the resistance block that is outward convex and the stripe groove that is inward recessed. In addition, the elastic washer is slidably sleeved on the nail body, the inner hole of the washer is larger than the outer diameter of the nail body and is smaller than the outer diameter of the nail cap, so that it can freely slide on the nail body and is finally limited between the nail cap and the nailed object. The utility model discloses through the friction enhancement structure, has improved the pullout strength and the fixed reliability of shoots a nail significantly, simultaneously, through the buffering effect of the elastic washer, effectively absorbs the impact energy, avoids the damage to the surface of the nailed object, has the dual advantages of high strength fixation and protection base material.

Description

Technical Field

[0001] This utility model relates to the field of building fastener technology, and in particular to a high-strength nail. Background Technology

[0002] As a highly efficient fastening component, nails are widely used in construction, decoration, and other fields to quickly fix various components to rigid substrates such as concrete and steel plates. Nails are usually used with a specialized nail gun, utilizing the enormous impact force generated by gunpowder or high-pressure gas to instantly drive them into the substrate.

[0003] In the present technology, the nail body of a common nail is usually a smooth cylindrical surface. After being driven into the substrate, the fixing effect of such nails mainly relies on the huge static friction force generated by the interference fit between the nail body and the hole wall of the substrate.

[0004] However, fixing methods relying solely on static friction have inherent limitations. When the fixed component is subjected to vibration, impact, or continuous tensile loads, the static friction between the nail and the substrate may gradually weaken or even fail, causing the nail to loosen or be pulled out, thus posing a safety hazard of connection failure. Especially in applications requiring high connection reliability, the pull-out resistance and fixing strength of this traditional smooth nail are no longer sufficient to meet engineering needs.

[0005] Therefore, this utility model proposes a high-strength nail to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems of insufficient fixing strength and low connection reliability caused by the smooth surface of the nail body in the existing high-strength nail, this utility model aims to provide a high-strength nail with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a high-strength nail, comprising: a nail body, a nail tip, and a nail head; the high-strength nail also includes a friction-enhancing structure disposed on the nail body, and a washer slidably sleeved on the nail body.

[0008] The friction-enhancing structure is composed of a resistance block integrally protruding from the outer peripheral surface of the nail and a striped groove formed by inward indentation.

[0009] Furthermore, the inner diameter of the washer is larger than the outer diameter of the nail body and smaller than the outer diameter of the nail head, so that the washer can slide freely along the axial direction on the nail body and be limited by the nail head.

[0010] Preferably, the nail body, the nail tip, and the nail head are integrally formed. This integral structure has no splicing gaps, which can ensure the lossless transmission of impact force from the nail head to the nail tip, and has the highest structural strength and reliability.

[0011] Preferably, the resistance block and the striped groove are arranged alternately along the axial direction of the nail body. This arrangement makes the engagement points between the substrate and the nail body surface more evenly distributed when the nail body is subjected to axial pull-out force, thereby providing stable and strong pull-out resistance at all angles.

[0012] Preferably, the striped groove extends circumferentially around the nail body, forming a continuous or discontinuous annular groove. This annular structure can effectively lock the substrate filled therein, forming a mechanical locking effect similar to a thread, further enhancing the pull-out resistance.

[0013] Preferably, the washer is an elastic washer, which works by utilizing the elastic potential energy of the material itself. Compared with rigid washers, it can undergo recoverable deformation at the moment of impact, thereby achieving effective absorption and buffering of impact energy.

[0014] As one specific implementation, the elastic washer is a wave washer or a saddle-shaped washer. These types of washers have simple structures, large elastic strokes, and can provide ideal buffering effects within a limited compression space, and are inexpensive to produce.

[0015] Preferably, the nail tip has a conical or pyramidal structure. This sharp geometric shape can generate great pressure at the contact point under impact, which is beneficial for quickly breaking the surface of hard substrates such as concrete and provides precise guidance for the nail's entry.

[0016] Preferably, the top surface of the nail head is a flat surface adapted to the impact of the nail gun piston. This flat force-bearing surface ensures that the impact piston of the nail gun can fit well with the nail head, so that the impact force acts vertically and evenly on the nail body axis, avoiding energy loss or nail deviation caused by eccentric force.

[0017] This utility model has the following beneficial effects: This invention solves the problem of insufficient fixing strength and easy pull-out of nails in the prior art due to the smooth surface of the nail body by integrally forming an outwardly protruding resistance block and an inwardly recessed striped groove on the outer peripheral surface of the nail body. It achieves the technical effect of greatly improving the pull-out resistance and fixing reliability of the nail through the combined action of mechanical interlocking and friction.

[0018] This invention solves the problem in the prior art where the impact force of a nail during high-speed injection can easily cause chipping or cracking damage to the surface of the nailed object. By sliding an elastic washer on the nail body, this invention achieves the technical effect of absorbing and buffering impact energy using the elastic deformation of the washer, effectively protecting the integrity of the surface of the nailed object. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a high-strength nail proposed in this utility model; Figure 2 This is a schematic diagram of the nail body of a high-strength nail proposed in this utility model; Figure 3 This is a schematic diagram of the washer of a high-strength nail according to the present invention; Legend: 1. Nail body; 2. Resistance block; 3. Groove; 4. Nail tip; 5. Nail head; 6. Washer. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example

[0021] Please refer to Figures 1 to 3 This utility model provides a high-strength nail, which aims to solve the problem that existing nails have insufficient fixing strength and are prone to damaging the nailed object during injection.

[0022] like Figure 1 As shown, the overall structure of the high-strength nail includes a nail body 1. One end of the nail body 1 is fixedly connected to form a nail tip 4 for piercing an object, and the other end of the nail body 1 is fixedly connected to form a nail head 5 for bearing impact and limiting position. The nail body 1, nail tip 4 and nail head 5 are integrally formed, which ensures the overall structural strength and force transmission reliability.

[0023] Please refer to Figure 2The nail body 1 is located on the outer peripheral surface between the nail head 5 and the nail tip 4, forming an integral structure that helps to enhance the fixing friction. This structure specifically includes a resistance block 2 protruding outward from the outer peripheral surface of the nail body 1 and a striped groove 3 formed inward. The resistance block 2 and the striped groove 3 together form an uneven friction enhancement structure on the outer peripheral surface of the nail body 1. When the nail enters the nailed object, this friction enhancement structure can greatly increase the mechanical interlocking force and friction between the nail body 1 and the inner wall of the nailed object, thereby achieving a high-strength pull-out resistance effect.

[0024] In this embodiment, to further optimize the fixing performance, the resistance block 2 and the striped groove 3 are arranged alternately along the axial direction of the nail body 1. This arrangement allows the nail body 1 to be subjected to effective resistance in any pull-out direction. At the same time, the striped groove 3 extends around the nail body 1 in the circumference to form an annular groove, which further increases the unevenness of the surface of the nail body 1.

[0025] Please refer to Figure 1 and Figure 3 As another core innovation of this solution, the high-strength nail also includes a washer 6. The washer 6 is used to buffer the impact force brought by the nail gun when it is fired, reducing damage to the nailed object. The washer 6 is installed on the outer periphery of the nail body 1 by sliding sleeve. Its inner hole diameter is larger than the outer diameter of the nail body 1 and smaller than the outer diameter of the nail head 5. This dimensional relationship ensures that the washer 6 can slide freely on the nail body 1 along its axis, while not coming off the nail head 5. In the initial state of the nail, the washer 6 is set between the nail head 5 and the nail tip 4 and is located near the nail head 5.

[0026] As a further explanation of the core structure of the high-strength nail described above, the technical solution of this embodiment focuses on the friction-enhancing structure formed on the nail body 1 and the slidingly disposed washer 6.

[0027] Please refer to the following carefully. Figure 2 For this friction-enhancing structure, the preferred shape of the resistance block 2 is a strip-shaped protrusion extending along the axial direction of the nail body 1. This shape provides good guidance when the nail is driven in, while providing the maximum contact area when resisting axial pull-out force.

[0028] Correspondingly, the cross-sectional shape of the striped groove 3 can be V-shaped or U-shaped. This groove structure, in conjunction with the resistance block 2, makes the surface contour of the nail body 1 have huge undulations. After the nail is fixed in a substrate such as concrete, the material of the substrate will fill into the striped groove 3, forming a strong mechanical locking effect.

[0029] Please refer to this again. Figure 1 and Figure 3The structure of washer 6 is described in detail. Washer 6 is an elastic washer, and its specific structure can be a wave washer or a saddle washer. This type of washer has the ability to store and release elastic energy after being compressed. At the end of the nail impact, washer 6 is compressed between the surface of the nailed object and the nail head 5. Its elastic energy effectively absorbs the residual impact energy, avoids stress concentration on the surface of the nailed object, and thus prevents edge chipping or cracking.

[0030] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, in order to enable the nail to penetrate hard objects more smoothly, the structure of the nail tip 4 is optimized. The nail tip 4 is a conical or pyramidal structure. This sharp geometry can generate great pressure under impact force, thereby effectively breaking the surface of the nailed object and guiding the nail body 1 into the ground.

[0031] As another preferred embodiment, in order to enable the nail to stably receive the impact force from the nail gun, the structure of the nail head 5 is also adapted. The top surface of the nail head 5 is a plane adapted to the impact of the nail gun piston. This plane ensures that the impact force can act evenly and vertically on the axis of the nail, avoiding nail deflection or energy loss due to uneven force.

[0032] Working principle: When the high-strength nail is loaded into the nail gun and aimed at the object to be nailed, the piston of the nail gun instantly impacts the top surface of the nail head 5, and the huge impact force drives the entire nail to shoot at high speed toward the object to be nailed.

[0033] During the process of the nail contacting and entering the object being nailed, the tip of the nail 4 first pierces the surface of the object, and then the entire nail body 1 follows the nail tip 4 into the interior of the object. During this process, due to inertia, the washer 6, which is originally adjacent to the nail head 5, will slide rapidly relative to the nail body 1 toward the nail head 5 until the nail stops moving completely.

[0034] When the nail gun stops, the washer 6 is finally compressed between the outer surface of the nailed object and the nail head 5. The elasticity of the washer 6 causes it to deform, thereby absorbing and buffering the powerful impact energy brought by the nail gun, effectively reducing the impact damage to the surface of the nailed object, and preventing cracking or breakage.

[0035] At the same time, the nail body 1, which has completely entered the interior of the nailed object, has an uneven structure formed by the resistance block 2 and the striped groove 3 on its outer peripheral surface. This structure creates a tight mechanical engagement and huge friction with the inner wall material of the nailed object. This friction caused by the structure makes it difficult for the nail to be pulled out of the nailed object, thus achieving a more secure and reliable fixing effect than traditional smooth nail bodies.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A high-strength nail, comprising a nail body (1), one end of which is fixedly connected to a nail tip (4), and the other end of which is fixedly connected to a nail head (5); Its features are, The high-strength nail also includes a washer (6) that is slidably sleeved on the outer periphery of the nail body (1). The inner diameter of the washer (6) is larger than the outer diameter of the nail body (1) and smaller than the outer diameter of the nail head (5), so that the washer (6) can slide freely on the nail body (1) along its axial direction and is initially positioned between the nail head (5) and the nail tip (4) and adjacent to the nail head (5). Furthermore, the nail body (1) is integrally formed with a resistance block (2) protruding outward from the outer peripheral surface and a striped groove (3) recessed inward on the outer peripheral surface. The resistance block (2) and the striped groove (3) together form an uneven friction-enhancing structure on the outer peripheral surface of the nail body (1). The resistance block (2) and the striped groove (3) are arranged alternately along the axial direction of the nail body (1), and the striped groove (3) extends around the nail body (1) in the circumferential direction.

2. The high-strength nail according to claim 1, characterized in that, The washer (6) is an elastic washer.

3. The high-strength nail according to claim 2, characterized in that, The elastic washer is a wave washer or a saddle-shaped washer.

4. A high-strength nail according to claim 1, characterized in that, The cross-sectional shape of the stripe groove (3) is V-shaped or U-shaped.

5. A high-strength nail according to claim 1, characterized in that, The resistance block (2) is a strip-shaped protrusion extending along the axial direction of the nail body (1).

6. A high-strength nail according to claim 1, characterized in that, The nail body (1), the nail tip (4), and the nail cap (5) are integrally formed.

7. A high-strength nail according to claim 1, characterized in that, The nail tip (4) is a conical or pyramidal structure.

8. A high-strength nail according to claim 1, characterized in that, The top surface of the nail cap (5) is a plane adapted to the impact of the nail gun piston.

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