Drywall anchor

Abstract

The dry wall nail provided by the utility model can form the effect of a blade on the screw thread part on the two sides of the notch, thereby cutting some fibers wound on the screw thread part at the tail end of the nail body, greatly reducing the problem of increased resistance caused by the winding of the fibers during the installation of the dry wall nail, and the sharp part at the cap edge in the nail cap can be embedded into the plate body to form mechanical clamping when the nail cap is abutted onto the plate body, effectively inhibiting the reverse loosening of the dry wall nail, and after the installation of the nail body is completed, the positioning pin is hammered by a hammer, so that the positioning pin travels along the through hole and is nailed into the plate body, thereby effectively fixing the dry wall nail and preventing it from rotating in any direction.

Description

Technical Field

[0001] This utility model relates to the field of drywall screw technology, and in particular to a drywall screw. Background Technology

[0002] In the fields of building decoration and furniture assembly, drywall screws are commonly used fasteners and are widely used to connect and fix gypsum board, wood board and other boards to keel, frame and other structures. The core structure of existing drywall screws usually includes a screw body, an integrally formed screw head and a threaded part set on the screw body. Some drywall screws have a cross groove on the screw head so that they can be screwed in and installed with the help of tools such as screwdrivers.

[0003] However, in practical applications, when existing drywall screws are screwed into fibrous materials such as gypsum board and wood panels, the fibers in the board easily become entangled on the threaded part at the tail end of the screw, resulting in a significant increase in resistance during installation. This not only increases the difficulty of installation but may also cause the screw to shift due to uneven resistance, affecting installation accuracy. Furthermore, existing drywall screws rely solely on the friction between the threaded part and the inner wall of the mounting hole for fixation. Over long-term use, factors such as vibration and temperature changes can gradually reduce the tightness of the fit between the thread and the board, making it prone to reverse loosening and severely affecting connection stability. Moreover, if the drywall screw is subjected to external impact or torque after installation, it is prone to circumferential rotation, further exacerbating the loosening problem.

[0004] Therefore, it is necessary to provide a new drywall screw to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a drywall screw.

[0006] The drywall screw provided by this utility model includes a screw body, the top of the screw body is provided with an integrally formed screw head, and the screw head is provided with an oblique through hole, the through hole is provided with a positioning pin, and the end of the positioning pin is provided with a pointed protrusion.

[0007] The nail body is provided with an integrally formed threaded portion, and multiple annularly distributed notches are opened on the threaded portion near the tail end of the nail body.

[0008] Preferably, the nail head has a cross groove.

[0009] Preferably, the through hole is offset from the cross groove.

[0010] Preferably, a plastic sleeve is fitted onto the positioning pin, and the plastic sleeve is fixedly fitted into the through hole.

[0011] Preferably, the inner edge of the nail head is fixedly fitted with a plurality of ring-shaped spikes.

[0012] Preferably, the nail body, nail head, and threaded portion are all provided with a galvanized layer.

[0013] Compared with related technologies, the drywall screws provided by this utility model have the following beneficial effects:

[0014] This invention features multiple annularly distributed notches on the threaded portion near the tail end of the drywall nail. As the drywall nail is screwed into the mounting hole, the threads on both sides of the notches act as blades, cutting off fibers wrapped around the threaded portion at the tail end of the nail. This significantly reduces the increased resistance caused by fiber entanglement during installation. Furthermore, the spikes on the inner edge of the nail head engage with the plate when the nail head comes into contact with it, creating a mechanical lock that effectively prevents the drywall nail from rotating or loosening. After the nail is installed, the worker can use a hammer to strike the locating pin, causing it to travel along the through hole and drive into the plate. This effectively secures the drywall nail, preventing it from rotating in any direction. Attached Figure Description

[0015] Figure 1 One of the structural schematic diagrams of a preferred embodiment of the drywall screw provided by this utility model;

[0016] Figure 2 A second structural schematic diagram of a preferred embodiment of the drywall screw provided by this utility model;

[0017] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the nail head.

[0018] The following are the labels in the diagram: 1. Nail body; 2. Nail head; 2a. Cross groove; 2b. Through hole; 3. Threaded part; 3a. Notch; 4. Locating pin; 41. Plastic sleeve; 5. Spike. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0021] Please see Figures 1 to 3 The present invention provides a drywall screw, which includes a screw body 1, a screw head 2, and a positioning pin 4.

[0022] In the embodiments of this utility model, please refer to Figure 1 , Figure 2 and Figure 3 The top of the nail body 1 is provided with an integrally formed nail head 2, and the nail head 2 is provided with a cross groove 2a. The nail body 1 is provided with an integrally formed threaded part 3, and the threaded part 3 near the tail end of the nail body 1 is provided with multiple annularly distributed notches 3a. Multiple annularly distributed spikes 5 are fixedly fitted into the inner edge of the nail head 2.

[0023] It should be noted that by providing multiple annularly distributed notches 3a on the threaded portion 3 near the tail end of the nail body 1, the threaded portions 3 on both sides of the notches 3a can form a cutting edge effect during the process of screwing the drywall nail into the mounting hole, thereby cutting off some fibers wrapped around the threaded portion 3 at the tail end of the nail body 1. This greatly reduces the problem of increased resistance caused by fiber entanglement during drywall nail installation, making the screwing process smoother. At the same time, it avoids the offset of the nail body 1 caused by uneven resistance, thus improving the installation accuracy.

[0024] When the nail head 2 abuts against the plate, the spike 5 at the inner edge of the nail head 2 can be engaged with the plate to form a mechanical lock, effectively preventing the drywall nail from turning back and loosening.

[0025] In addition, the edges of the threaded portions 3 on both sides of the notch 3a can be hardened to improve the hardness and wear resistance of the threaded portions 3 on both sides of the notch 3a and extend their service life when cutting fibers. At the same time, the dimensional parameters of the notch 3a can be adjusted to reduce the depth and width of the notch 3a while ensuring the fiber cutting effect. A rounded transition structure can be set at the bottom of the notch 3a to avoid stress concentration, improve the overall structural strength of the threaded portion 3, and reduce the risk of fracture.

[0026] In this embodiment, the outer diameter of the threaded portion 3 near the nail head 2 on the nail body 1 is larger than that of the threaded portion 3 at the tail end of the nail body 1. This avoids the problem that the diameter of the hole is enlarged due to the compression of the threaded portion 3 at the tail end of the nail body 1, resulting in poor tightness between the threaded portion at the head end and the mounting hole. The outer diameter of the threaded portion 3 at the nail head 2 is larger, so the threaded portion 3 at the nail head 2 is also in a sufficiently compressed state with the inner wall of the mounting hole, thereby greatly improving the connection strength of the drywall screw.

[0027] Furthermore, the nail body 1, nail head 2, and threaded portion 3 are all provided with a galvanized layer, which reduces the occurrence of rust on the drywall nails.

[0028] In the embodiments of this utility model, please refer to Figure 1 , Figure 2 and Figure 3 The nail head 2 has an oblique through hole 2b, which is offset from the cross groove 2a. A positioning pin 4 is provided in the through hole 2b, and the end of the positioning pin 4 is provided with a pointed protrusion. A plastic sleeve 41 is fitted on the positioning pin 4, and the plastic sleeve 41 is fixedly fitted in the through hole 2b.

[0029] It should be noted that after the nail body 1 is installed, the worker can use a hammer to hammer the positioning pin 4, so that the positioning pin 4 moves along the through hole 2b and is nailed into the plate, thus effectively fixing the drywall nail and preventing it from rotating in any direction.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A drywall screw, characterized in that, Includes a nail body (1), the top of which is provided with an integrally formed nail head (2), and the nail head (2) is provided with an oblique through hole (2b), the through hole (2b) is provided with a positioning pin (4), and the end of the positioning pin (4) is provided with a pointed protrusion. The nail body (1) is provided with an integrally formed threaded portion (3), and multiple annularly distributed notches (3a) are provided on the threaded portion (3) near the tail end of the nail body (1).

2. The drywall screw according to claim 1, characterized in that, The nail head (2) has a cross groove (2a).

3. The drywall screw according to claim 2, characterized in that, The through hole (2b) is offset from the cross groove (2a).

4. The drywall screw according to claim 1, characterized in that, A plastic sleeve (41) is fitted on the positioning pin (4), and the plastic sleeve (41) is fixedly fitted into the through hole (2b).

5. The drywall screw according to claim 1, characterized in that, The inner edge of the nail head (2) is fixedly fitted with a plurality of ring-shaped spikes (5).

6. The drywall screw according to claim 1, characterized in that, The nail body (1), nail head (2) and threaded portion (3) are all provided with a galvanized layer.

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