Anti-loosening self-tapping screw

Abstract

The anti-loosening self-tapping screw comprises a self-tapping screw body, a working groove is formed in the self-tapping screw body in a penetrating mode, a reinforcing mechanism used for preventing loosening is connected into the working groove in a sliding mode, and a penetrating groove is formed in the top of the reinforcing mechanism. And a driving mechanism for driving the reinforcing mechanism to move and reinforce is arranged at the position, corresponding to the through groove, in the self-tapping screw body. According to the self-tapping screw, materials can be installed and fixed through the self-tapping screw body, after the self-tapping screw body is installed, the driving mechanism at the position of the rotating penetrating groove rotates and descends, then the reinforcing mechanism can be pushed to stretch out of the working groove, the reinforcing mechanism can stretch into the materials through the arrangement, and the materials can be fixed through the self-tapping screw body. Therefore, the self-tapping screw body can be prevented from loosening when materials shake.

Description

Technical Field

[0001] The utility model relates to the technical field of self-tapping screws, in particular to an anti-loosening self-tapping screw. Background Art

[0002] Self-tapping screws (also known as self-drilling screws or self-threading screws) are fasteners with a specific thread design that allows them to form threads in most materials without the need for pre-drilling or tapping. This characteristic makes self-tapping screws quicker and easier to install. They are commonly used on materials such as wood, plastic, and sheet metal.

[0003] When using self-tapping screws, the thread effect is used to complete the fixation. However, this fixing method is prone to cause the screws to loosen when the fixed material shakes or vibrates for a long time, thereby affecting the fastening effect of the fixing part. For this reason, we propose an anti-loosening self-tapping screw. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-loosening self-tapping screw to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-loosening self-tapping screw, comprising a self-tapping screw body, a working groove being penetrated through the self-tapping screw body, a reinforcement mechanism for preventing loosening being slidably connected inside the working groove, a through groove being provided on the top of the reinforcement mechanism, and a driving mechanism for driving the reinforcement mechanism to move and reinforce being provided inside the self-tapping screw body and at a position corresponding to the through groove.

[0006] Furthermore, the self-tapping screw body includes a first screw body, a self-tapping screw head, a gasket and a first cross screw head. The bottom of the first screw body is provided with a conical self-tapping screw head, the top of the first screw body is fixedly installed with a first cross screw head, and the top of the outer wall of the first screw body is provided with a gasket that fits with the first cross screw head.

[0007] Furthermore, the reinforcement mechanism includes a fixed rod, a sliding seat, a slider and a fixed head. Two groups of fixed rods are fixedly installed inside the working groove. The top of the fixed rod is fixedly installed with a sliding seat. The inside of the sliding seat is slidably connected with a slider. A fixed head is fixedly installed on one side of the slider.

[0008] Furthermore, the driving mechanism includes a thread groove, a second screw body, a second cross screw head and a driving block. A thread groove is provided on the first screw body at a position corresponding to the through groove. The internal thread of the thread groove is connected to the second screw body. The top of the second screw body is fixedly installed with a second cross screw head, and the bottom of the second screw body is fixedly connected with a conical driving block in contact with the slider.

[0009] Furthermore, the side of the slider away from the fixed head is provided with an arc.

[0010] Furthermore, a rubber pad is provided on the outside of the sliding block and fits with the top of the sliding seat.

[0011] Compared with the prior art, the present invention has the following beneficial effects: the self-tapping screw body provided in the present invention can realize installation and fixation between materials. After the self-tapping screw body is installed, the driving mechanism at the position of the through-slot is rotated and lowered, and then the reinforcement mechanism can be pushed out of the working slot. Such a setting can utilize the reinforcement mechanism to extend into the interior of the material, thereby preventing the self-tapping screw body from loosening when the material shakes. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the first stereoscopic structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the second stereoscopic structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model after removing the driving mechanism;

[0015] Figure 4 It is a cross-sectional structural diagram of the utility model.

[0016] In the figure: 1 self-tapping screw body, 2 working groove, 3 reinforcement mechanism, 4 through groove, 5 driving mechanism, 6 first screw body, 7 self-tapping screw head, 8 gasket, 9 first cross screw head, 10 fixing rod, 11 slide seat, 12 slider, 13 fixing head, 14 threaded groove, 15 second screw body, 16 second cross screw head, 17 driving block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments 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.

[0018] See also Figures 1-4The utility model provides a technical solution: an anti-loosening self-tapping screw, comprising a self-tapping screw body 1, a working groove 2 is penetrated through the self-tapping screw body 1, a reinforcement mechanism 3 for preventing loosening is slidably connected inside the working groove 2, a through groove 4 is provided on the top of the reinforcement mechanism 3, and a driving mechanism 5 for driving the reinforcement mechanism 3 to move and reinforce is provided inside the self-tapping screw body 1 and at a position corresponding to the through groove 4.

[0019] Among them, the set self-tapping screw body 1 can realize the installation and fixation between materials. After the self-tapping screw body 1 is installed, the driving mechanism 5 at the position of the through-slot 4 is rotated and lowered, so that the reinforcement mechanism 3 can be pushed out of the working slot 2. Such a setting can utilize the reinforcement mechanism 3 to extend into the interior of the material, thereby preventing the self-tapping screw body 1 from loosening when the material shakes.

[0020] See also Figure 1 and Figure 2 The self-tapping screw body 1 includes a first screw body 6, a self-tapping screw head 7, a gasket 8 and a first cross screw head 9. A conical self-tapping screw head 7 is provided at the bottom of the first screw body 6, and a first cross screw head 9 is fixedly installed on the top of the first screw body 6. A gasket 8 is provided on the top of the outer wall of the first screw body 6 and is in contact with the first cross screw head 9.

[0021] Among them, the self-tapping screw head 7 is conveniently inserted into the material, and then the first cross screw head 9 is rotated to allow the first screw body 6 and the self-tapping screw head 7 to be inserted into the material to complete the fixation and locking.

[0022] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The reinforcement mechanism 3 includes a fixed rod 10, a slide 11, a slider 12 and a fixed head 13. Two groups of fixed rods 10 are fixedly installed inside the working groove 2. The top of the fixed rod 10 is fixedly installed with a slide 11. The inside of the slide 11 is slidably connected to the slider 12, and one side of the slider 12 is fixedly installed with a fixed head 13. The driving mechanism 5 includes a threaded groove 14, a second screw body 15, a second cross screw head 16 and a driving block 17. A threaded groove 14 is opened on the first screw body 6 at a position corresponding to the through-groove 4. The internal thread of the threaded groove 14 is connected to the second screw body 15, and the top of the second screw body 15 is fixedly installed with a second cross screw head 16. The bottom of the second screw body 15 is fixedly connected to a conical driving block 17 in contact with the slider 12.

[0023] Among them, after the self-tapping screw body 1 is inserted into the material, the second cross screw head 16 is rotated to make the second screw body 15 rotate and move downward along the thread groove 14, so that the frustum-shaped driving block 17 can be driven to move downward and contact one side of the slider 12. As the driving block 17 continues to move downward, the slider 12 and the fixed head 13 can be extended outward along the slide seat 11, so that the extended fixed head 13 can be used to extend into the interior of the material, thereby completing the secondary reinforcement and locking of the material.

[0024] See also Figure 1 and Figure 4 The side of the slider 12 away from the fixed head 13 is provided with an arc shape. The arc shape of one side of the slider 12 can facilitate the driving block 17 to drive the slider 12 and the fixed head 13 to extend and move.

[0025] See also Figure 1 and Figure 4 The outside of the slider 12 is provided with a rubber pad that fits with the top of the slide seat 11. The rubber pad provided on the slider 12 can prevent the slider 12 from sliding along the slide seat 11 when no force is applied.

[0026] When in use, first, the self-tapping screw body 1 is set to realize the installation and fixation between the materials. After the self-tapping screw body 1 is installed, the driving mechanism 5 that passes through the groove 4 is rotated and lowered, so that the reinforcement mechanism 3 can be pushed out of the working groove 2. Such a setting can use the reinforcement mechanism 3 to extend into the interior of the material, thereby preventing the self-tapping screw body 1 from loosening when the material shakes. The set self-tapping screw head 7 is convenient for extending into the interior of the material. Then, the first cross screw head 9 is rotated so that the first screw body 6 and the self-tapping screw head 7 are extended into the interior of the material to complete the fixation and locking. After the self-tapping screw body 1 is extended into the material, the second cross screw head 16 is rotated so that the second screw body 15 is rotated and moved downward along the thread groove 14, so that the conical driving block 17 can be driven to move downward and contact one side of the slider 12. As the driving block 17 continues to move downward, the slider 12 and the fixed head 13 can be extended outward along the slide seat 11, so that the extended fixed head 13 can be used to extend into the interior of the material, thereby completing the secondary reinforcement and locking of the material.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-loosening self-tapping screw, comprising a self-tapping screw body (1), wherein a working groove (2) is formed through the self-tapping screw body (1), and characterized in that: The working groove (2) is internally slidably connected to a reinforcement mechanism (3) for preventing loosening, a through groove (4) is provided on the top of the reinforcement mechanism (3), and a driving mechanism (5) for driving the reinforcement mechanism (3) to move and reinforce is provided inside the self-tapping screw body (1) and at a position corresponding to the through groove (4).

2. The anti-loosening self-tapping screw according to claim 1, characterized in that: The self-tapping screw body (1) comprises a first screw body (6), a self-tapping screw head (7), a gasket (8) and a first cross screw head (9); the bottom of the first screw body (6) is provided with a conical self-tapping screw head (7); the top of the first screw body (6) is fixedly mounted with the first cross screw head (9); and the top of the outer wall of the first screw body (6) is provided with a gasket (8) that fits with the first cross screw head (9).

3. The anti-loosening self-tapping screw according to claim 2, characterized in that: The reinforcement mechanism (3) comprises a fixed rod (10), a sliding seat (11), a slider (12) and a fixed head (13); two groups of fixed rods (10) are fixedly installed inside the working groove (2); the sliding seat (11) is fixedly installed on the top of the fixed rod (10); the slider (12) is slidably connected inside the slider (11); and the fixed head (13) is fixedly installed on one side of the slider (12).

4. The anti-loosening self-tapping screw according to claim 3, characterized in that: The driving mechanism (5) comprises a thread groove (14), a second screw body (15), a second cross screw head (16) and a driving block (17); a thread groove (14) is provided on the first screw body (6) at a position corresponding to the through groove (4); the internal thread of the thread groove (14) is connected to the second screw body (15); the top of the second screw body (15) is fixedly mounted with the second cross screw head (16); the bottom of the second screw body (15) is fixedly connected with a truncated cone-shaped driving block (17) in contact with the slider (12).

5. The anti-loosening self-tapping screw according to claim 4, characterized in that: The side of the slider (12) away from the fixed head (13) is provided with an arc.

6. The anti-loosening self-tapping screw according to claim 4, characterized in that: The outside of the sliding block (12) is provided with a rubber pad that fits the top of the sliding seat (11).

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