Self drilling screw with positioning structure

Abstract

The utility model relates to the technical field of self drilling screws, and discloses a self drilling screw with a positioning structure, which comprises a screw rod, one end of the screw rod is provided with a positioning component, the positioning component comprises a connecting disc, the connecting disc is connected with a connecting rod in a sliding manner, the bottom of the connecting rod is fixedly connected with a positioning disc, the positioning disc is annular, and the positioning disc is provided with a positioning hole. The positioning assembly is arranged, the positioning disc in the positioning assembly is attached to the plate, the connecting rod controls the connecting disc and the plate to be kept in a parallel state, the screw is perpendicular to the surface of the plate through spiral connection of the connecting disc and the screw, and the positioning disc and the connecting rod are used for supporting. Therefore, the screw controls the drill bit to be in a vertical state all the time when the drill bit drills into the plate, and inclination is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of self-drilling screws, in particular to a self-drilling screw with a positioning structure. Background Art

[0002] In daily life, whether it is the installation of furniture or the fixing of colored steel tiles used in steel structures, screws are needed. Screws are tools that use the physics and mathematical principles of the circular rotation of the inclined surface of an object and the friction force to gradually fasten objects and parts. The self-drilling screw is a new invention of people in recent years. It is also called a self-drilling screw. The self-drilling screw has a self-drilling head at the front end of the screw. According to the application field, it is the first invention of mankind. The self-drilling screw needs to be positioned by a positioning device during processing. The existing self-drilling screw has a common structure and cannot penetrate into steel plates of such thickness. Moreover, the penetration speed is slow and there is no positioning structure, which is prone to displacement.

[0003] The Chinese utility model patent with patent application number 202321979899.7 provides a drill screw with a positioning structure. By installing a matching positioning protrusion on the drill screw body, the positioning effect of the drill screw body can be increased, avoiding the position deviation of the drill screw body during installation, and facilitating use. A hexagonal structure is provided on the top of the drill screw body to reinforce and fix the drill bit and the hexagonal head, achieving the purpose of secondary fixation, avoiding the unstable connection caused by the fitting gap between the drill bit and the hexagonal head when using the screw, and making the installation position of the screw more precise.

[0004] However, during the use of the above-mentioned equipment, it was found that when the self-drilling screw is drilled into the plate, when shaking occurs during the drilling process, it is easy to cause the angle of the self-drilling screw to deviate from the plate, thereby causing the self-drilling screw to be tilted. Utility Model Content

[0005] The purpose of the utility model is to provide a self-drilling screw with a positioning structure to solve the problem proposed in the above background technology that when shaking occurs during the drilling process, the angle of the self-drilling screw drilling into the plate may deviate, thereby causing the self-drilling screw to be tilted.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a self-drilling screw with a positioning structure, comprising a screw rod, a positioning assembly is installed at one end of the screw rod, the positioning assembly includes a connecting plate, a connecting rod is slidably connected to the connecting plate, and the bottom of the connecting rod is fixedly connected to the positioning plate, and the positioning plate is ring-shaped.

[0007] Preferably, a through hole is provided in the middle of the connecting disk, and the through hole is spirally connected to the screw rod.

[0008] Preferably, a connecting groove is provided at the bottom of the connecting plate, the connecting groove is matched with the positioning plate, and connecting holes are provided on both ends of the connecting rod.

[0009] Preferably, a movable groove is provided in the connecting disk, a spring is installed inside the movable groove, one end of the spring is connected to a connecting block, and the connecting block is adapted to the connecting hole.

[0010] Preferably, a drill bit is connected to the bottom of the screw rod, a limit plate is connected to the top of the screw rod, and a screw head is connected to the top of the limit plate.

[0011] Preferably, the bottom of the limiting plate is in a truncated cone shape, and the bottom of the limiting plate is adapted to the through hole.

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

[0013] 1. The utility model sets a positioning assembly, and the positioning plate in the positioning assembly fits with the plate, so that the connecting rod controls the connecting plate to maintain a parallel state with the plate, and the spiral connection between the connecting plate and the screw rod is used to make the screw rod perpendicular to the surface of the plate, and the support of the positioning plate and the connecting rod is used to make the screw rod control the drill bit to always be in a vertical state during the process of drilling into the plate, thereby avoiding tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 Front view of the overall structure;

[0016] Figure 3 For this utility model Figure 1 The structural diagram of the positioning component;

[0017] Figure 4 For this utility model Figure 3 Cross-sectional view of the positioning assembly.

[0018] In the figure: 1. screw; 2. limit plate; 3. screw head; 4. positioning assembly; 41. connecting plate; 411. connecting groove; 42. through hole; 43. positioning plate; 44. connecting rod; 441. connecting hole; 45. movable groove; 46. connecting block; 47. spring; 5. drill bit. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] See also Figure 1-Figure 4 A self-drilling screw with a positioning structure shown in the figure includes a screw rod 1, a positioning assembly 4 is installed at one end of the screw rod 1, and the positioning assembly 4 includes a connecting plate 41, a connecting rod 44 is slidably connected to the connecting plate 41, and a positioning plate 43 is fixedly connected to the bottom of the connecting rod 44, and the positioning plate 43 is annular;

[0022] A through hole 42 is provided in the middle of the connecting plate 41, and the through hole 42 is spirally connected to the screw rod 1;

[0023] A connecting groove 411 is provided at the bottom of the connecting plate 41, and the connecting groove 411 is adapted to the positioning plate 43, and connecting holes 441 are provided at both ends of the connecting rod 44;

[0024] A movable groove 45 is provided in the connecting plate 41, a spring 47 is installed inside the movable groove 45, one end of the spring 47 is connected to a connecting block 46, and the connecting block 46 is adapted to the connecting hole 441;

[0025] The bottom of the screw rod 1 is connected with a drill bit 5, the top of the screw rod 1 is connected with a limit plate 2, and the top of the limit plate 2 is connected with a screw head 3;

[0026] The bottom of the limiting plate 2 is in a truncated cone shape, and the bottom of the limiting plate 2 is matched with the through hole 42 .

[0027] In this solution, when the self-drilling screw is drilled into the plate, the user installs the screw head 3 on the self-drilling screw on the tool. Under normal conditions, the connecting block 46 is engaged with the connecting hole 441 at the upper end of the connecting rod 44 to restrict the connecting rod 44, so that there is a certain distance between the connecting disk 41 and the positioning disk 43, and the positioning disk 43 is in contact with the plate while the connecting disk 41 is spirally connected to the screw rod 1, so that the connecting disk 41 is used to keep the screw rod 1 in a vertical state with the plate, so as to avoid the self-drilling screw from tilting during the drilling process.

[0028] During the drilling process, the user uses the tool to control the screw rod 1 to rotate through the screw head 3. Through the spiral connection between the screw rod 1 and the through hole 42 in the connecting plate 41, the screw rod 1 controls the drill bit 5 to drill into the plate during the rotation process. As the drill bit 5 continues to penetrate deeper, the distance between the connecting plate 41 and the limiting plate 2 gradually becomes closer.

[0029] When the connecting plate 41 fits with the limiting plate 2, the truncated cone at the bottom of the limiting plate 2 matches with the through hole 42. During this process, the connecting plate 41 and the limiting plate 2 are tightly connected. When the user continues to use the tool to drill the remaining screw 1 into the plate, the distance between the connecting plate 41 and the positioning plate 43 will gradually become closer as the screw 1 goes deeper, so that the edge of the connecting hole 441 at the upper end of the connecting rod 44 squeezes the connecting block 46, and then the connecting block 46 squeezes the spring 47 and retracts into the moving groove 45.

[0030] When the screw 1 completely enters into the plate, the positioning plate 43 enters into the connecting groove 411 at the bottom of the connecting plate 41. At the same time, the connecting hole 441 at the bottom of the connecting rod 44 corresponds to the connecting block 46. Under the push of the spring 47, the connecting block 46 enters into the connecting hole 441.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-drilling screw with a positioning structure, characterized in that: include: A screw rod (1), one end of which is provided with a positioning assembly (4), wherein the positioning assembly (4) comprises a connecting plate (41), a connecting rod (44) is slidably connected to the connecting plate (41), a positioning plate (43) is fixedly connected to the bottom of the connecting rod (44), and the positioning plate (43) is ring-shaped.

2. The self-drilling screw with a positioning structure according to claim 1, characterized in that: A through hole (42) is provided in the middle of the connecting disk (41), and the through hole (42) is spirally connected to the screw rod (1).

3. The self-drilling screw with a positioning structure according to claim 2, characterized in that: The bottom of the connecting plate (41) is provided with a connecting groove (411), the connecting groove (411) is adapted to the positioning plate (43), and connecting holes (441) are provided on both ends of the connecting rod (44).

4. The self-drilling screw with a positioning structure according to claim 3, characterized in that: The connecting plate (41) is provided with a movable groove (45), a spring (47) is installed inside the movable groove (45), one end of the spring (47) is connected to a connecting block (46), and the connecting block (46) is adapted to the connecting hole (441).

5. The self-drilling screw with a positioning structure according to claim 1, characterized in that: The bottom of the screw rod (1) is connected to a drill bit (5), the top of the screw rod (1) is connected to a limit plate (2), and the top of the limit plate (2) is connected to a screw head (3).

6. The self-drilling screw with a positioning structure according to claim 5, characterized in that: The bottom of the limiting plate (2) is in the shape of a truncated cone, and the bottom of the limiting plate (2) is adapted to the through hole (42).

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