Anti-skid and anti-loose electric connection fastening self-tapping screw

The anti-slip and anti-loosening electric fastening self-tapping screw addresses loose connections by using a connecting part with an anti-loosening pad and convex ring to enhance friction and stability, ensuring secure grounding wire attachment.

CN222229109UActive Publication Date: 2024-12-24SHANDONG SHUHONG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422779211.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2024-12-24
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

Conventional bolts used for connecting grounding wires in wind power projects are prone to loose connections due to external forces, leading to detachment of the grounding wires.

Method used

An anti-slip and anti-loosening electric fastening self-tapping screw with a connecting part, a second threaded part, an anti-loosening pad, a convex ring, and multiple step seats that enhance friction and stability through a groove and partition design, ensuring secure attachment of grounding wires.

Benefits of technology

The design increases friction and reduces structural stress, preventing grounding wire detachment and improving the anti-slip and anti-loosening effects, enhancing the stability and connection reliability of grounding wires.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mounting accessories, and discloses an anti-skid and anti-loose electric connection fastening self-tapping screw, which comprises a connecting part, a second thread part is fixedly connected to the bottom of the connecting part, a first thread part is fixedly connected to the top of the connecting part, an anti-loose pad is sleeved on the periphery of the second thread part, a groove is formed in the top of the anti-loose pad, and the first thread part is fixedly connected to the first thread part. The bottom of the connecting part is fixedly connected with a protruding ring, the protruding ring is matched with the groove, the periphery of the second thread part is further sleeved with an anti-loosening assembly used for preventing loosening caused by vibration after the self-tapping screw is installed, the anti-loosening assembly comprises an anti-skid pad, and the periphery of the second thread part is sleeved with the anti-skid pad. According to the utility model, the convex ring is additionally arranged at the bottom of the connecting part and is matched with the groove formed in the top of the anti-loosening pad, so that the end part of the grounding wire can be extruded in the groove area, and the contact area with the grounding wire is increased, thereby improving the friction force and preventing the grounding wire from falling off.
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Description

Technical Field

[0001] The utility model relates to the technical field of installation accessories, in particular to an anti-slip and anti-loosening electric connection fastening self-tapping screw. Background Art

[0002] Stud screws have threads on both ends and are used for fastening various grilles, steel gratings, flower plates, etc. or for wind power generation, photovoltaic installation, electrical appliance grounding protection, etc. At this time, stud screws are used. One end is screwed into the main body, and the other end is fastened with a nut after the accessories are installed. Stud screws are most commonly used when the thickness of the connecting body is very large and the screw length is very long, or for connecting thick plates and places where it is inconvenient to use ordinary screws.

[0003] In the field of wind power projects, in order to prevent equipment from being struck by lightning, grounding wires are usually installed on the equipment. At present, conventional bolts are often used for locking when connecting the grounding wires. Although this connection structure can achieve the connection of the grounding wire, the end of the grounding wire is only squeezed and locked by a simple gasket. When subjected to external force, the grounding wire is easy to detach from the bolt, affecting the use of the grounding wire. Therefore, a non-slip and non-loosening electric connection fastening self-tapping screw is provided to solve this problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a non-slip and non-loosening electrical connection fastening self-tapping screw, which aims to improve the problem in the prior art that when using bolts to connect the grounding wire, the grounding wire is only squeezed and locked by a gasket, resulting in a loose connection.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An anti-slip and anti-loosening electric fastening self-tapping screw, comprising a connecting part, a second threaded part fixedly connected to the bottom of the connecting part, a first threaded part fixedly connected to the top of the connecting part, an anti-loosening pad sleeved around the outer periphery of the second threaded part, a groove formed on the top of the anti-loosening pad, a convex ring fixedly connected to the bottom of the connecting part, the convex ring and the groove fit each other, and an anti-loosening component sleeved around the outer periphery of the second threaded part for preventing the self-tapping screw from loosening due to vibration after installation;

[0007] As a further description of the above technical solution:

[0008] The anti-loosening assembly includes an anti-skid pad, the anti-skid pad is sleeved on the outer periphery of the second threaded portion, the top of the anti-skid pad is fixedly connected to a second step seat, the bottom of the anti-loosening pad is fixedly connected to a step seat 1, and the step seat 1 is adapted to the second step seat;

[0009] As a further description of the above technical solution:

[0010] A third step seat is fixedly connected to the bottom of the anti-skid pad, and the third step seat contacts the surface of the mounting piece to increase the friction between the anti-skid pad and the mounting piece;

[0011] As a further description of the above technical solution:

[0012] The top of the anti-loosening pad is also fixedly connected with a partition, and the partition is installed inside the groove;

[0013] As a further description of the above technical solution:

[0014] A gasket is installed on the top of the connecting part to increase friction with the top mounting piece;

[0015] As a further description of the above technical solution:

[0016] A notch is provided on the outer side of the anti-loosening pad, and the notch is connected to the groove;

[0017] As a further description of the above technical solution:

[0018] A self-tapping head is fixedly connected to the bottom of the second threaded portion to provide a self-tapping function;

[0019] As a further description of the above technical solution:

[0020] The length ratio between the first threaded portion and the second threaded portion is 1:1.5.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by adding a convex ring at the bottom of the connection part and cooperating with the groove opened on the top of the anti-loosening pad, the end of the grounding wire can be squeezed into the groove area, increasing the contact area with the grounding wire, thereby increasing the friction force to prevent the grounding wire from falling off;

[0023] 2. In the present invention, by adding multiple partitions inside the groove, the grounding wire body can be squeezed in sections when the grounding wire is connected, thereby further increasing the friction with the grounding wire and further preventing the grounding wire from falling off when subjected to external force;

[0024] 3. In the utility model, the step seat 1 at the bottom of the anti-loosening pad and the second step seat at the top of the anti-slip pad are matched to increase the friction between them during installation and reduce the structural stress generated during the installation process, thereby improving the anti-loosening effect of the self-tapping screw;

[0025] 4. In the utility model, after the third step seat is added to the bottom of the anti-slip pad, when the second threaded portion is screwed, the third step seat will contact the surface of the mounting piece, and after the second threaded portion is tightened, a groove will be generated on the surface of the mounting piece. After cooperating with the third step seat, the connection between the self-tapping screw and the mounting piece is increased, thereby improving the anti-slip effect after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional schematic diagram of an anti-slip and anti-loosening electric fastening self-tapping screw proposed by the utility model;

[0027] Figure 2 This is a schematic structural diagram of an anti-skid and anti-loosening anti-skid pad for electrically fastening self-tapping screws proposed by the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of an anti-slip and anti-loosening electric fastening self-tapping screw proposed by the utility model;

[0029] Figure 4 This is a schematic structural explosion diagram from another perspective of the anti-slip and anti-loosening electric fastening self-tapping screw proposed by the utility model.

[0030] Legend:

[0031] 1. Connecting part; 2. First threaded part; 3. Second threaded part; 4. Self-tapping head; 5. Gasket; 6. Anti-loosening pad; 7. Groove; 8. Convex ring; 9. Notch; 10. Partition; 11. Step seat 1; 12. Anti-slip pad; 13. Second step seat; 14. Third step seat. DETAILED DESCRIPTION

[0032] 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.

[0033] Reference Figure 1 , Figure 3 and Figure 4The utility model provides an embodiment: an anti-slip and anti-loosening electrical connection fastening self-tapping screw, comprising a connecting part 1, a second threaded part 3 is fixedly connected to the bottom of the connecting part 1, the second threaded part 3 is used to connect the bottom mounting piece, and a self-tapping head 4 is fixedly connected to the bottom of the second threaded part 3 to provide a self-tapping function. The connecting part 1 is screwed by an external tool to drive the second threaded part 3 and the self-tapping head 4 to rotate so as to enter the interior of the bottom mounting piece. The top of the connecting part 1 is fixedly connected to the first threaded part 2, the first threaded part 2 is used to connect the top mounting piece, the outer periphery of the second threaded part 3 is sleeved with an anti-loosening pad 6, and the top of the anti-loosening pad 6 is provided with a groove 7. The bottom of the connecting part 1 is fixedly connected to a convex ring 8, the convex ring 8 and the groove 7 are adapted to each other, and the grounding wire to be installed is bypassed between the connecting part 1 and the anti-loosening pad 6. When the self-tapping screw is used, the gap between the connecting part 1 and the anti-loosening pad 6 is continuously reduced, and the convex ring 8 is continuously close to the groove 7. Thus, the grounding wire can be squeezed to complete the connection of the grounding wire.

[0034] Reference Figure 2-Figure 4 , an anti-loosening component is also sleeved on the outer periphery of the second threaded portion 3 to prevent the self-tapping screw from loosening due to vibration after installation. The anti-loosening component includes an anti-skid pad 12, which is sleeved on the outer periphery of the second threaded portion 3. A second step seat 13 is fixedly connected to the top of the anti-skid pad 12, and a step seat 11 is fixedly connected to the bottom of the anti-loosening pad 6. The step seat 11 and the second step seat 13 are adapted. When the second threaded portion 3 and the self-tapping head 4 continue to penetrate the mounting piece, the anti-skid pad 12 will also contact the anti-loosening pad 6, and then the anti-loosening pad 6 and the anti-skid pad 12 are connected through the mutual cooperation of the step seat 11 and the second step seat 13. After the installation is completed, the structural stress generated during the installation process can be reduced by the friction between them, thereby improving the anti-loosening effect of the self-tapping screw;

[0035] Reference Figure 1-Figure 4 A third step seat 14 is fixedly connected to the bottom of the anti-slip pad 12. The third step seat 14 contacts the surface of the mounting piece and is used to increase the friction between the anti-slip pad 12 and the mounting piece. After the third step seat 14 is added to the bottom of the anti-slip pad 12, when the second threaded portion 3 is screwed, the third step seat 14 will contact the surface of the mounting piece, and after the second threaded portion 3 is tightened, a groove is generated on the surface of the mounting piece. After cooperating with the third step seat 14, the connection between the self-tapping screw and the mounting piece is increased, thereby improving the anti-slip effect after installation.

[0036] Reference Figure 3-Figure 4 The top of the anti-loosening pad 6 is also fixedly connected with a partition 10, which is installed in the groove 7. Through the multiple partitions 10 added in the groove 7, when the grounding wire is connected, the grounding wire body is squeezed in sections, thereby further increasing the friction with the grounding wire, and further preventing the grounding wire from falling off when subjected to external force. A gasket 5 is installed on the top of the connecting part 1 to increase the friction with the top mounting part.

[0037] Reference Figure 2-Figure 4 A notch 9 is provided on the outside of the anti-loosening pad 6, and the notch 9 is connected to the groove 7. The outlet end of the grounding wire can be led out from the notch 9. The length ratio between the first threaded portion 2 and the second threaded portion 3 is 1:1.5, which is used to lower the center of gravity of the self-tapping screw, thereby reducing the shaking during the installation process.

[0038] Working principle: when in use, firstly sleeve the anti-slip pad 12 and the anti-loosening pad 6 on the outside of the second threaded portion 3, then use an external tool to twist the connecting portion 1 to drive the second threaded portion 3 and the self-tapping head 4 to rotate, and use the self-tapping head 4 to make the second threaded portion 3 self-tapping into the inside of the mounting part. When the self-tapping head 4 and the second threaded portion 3 penetrate into the mounting part to a certain depth, the grounding wire to be installed is bypassed between the connecting portion 1 and the anti-loosening pad 6, and the outlet end of the grounding wire is placed at the notch 9 position, and then the connecting portion 1 is continued to be twisted, so that the self-tapping head 4 and the second threaded portion 3 can continue to penetrate into the mounting part. At the same time, the gap between the connecting portion 1 and the anti-loosening pad 6 is continuously reduced, and the convex ring 8 is continuously approaching the groove 7 position, thereby squeezing the grounding wire to increase the friction between the grounding wire and the convex ring 8 and the anti-loosening pad 6, thereby completing the connection of the grounding wire, and when the convex ring 8 and the anti-loosening pad 6 are close to each other, the grounding wire will also contact with the groove 7, and the groove 7 will squeeze the grounding wire more deeply, thereby further improving the stability of the grounding wire installation.

[0039] When the second threaded portion 3 and the self-tapping head 4 continue to penetrate into the mounting part, the anti-skid pad 12 will also come into contact with the anti-loosening pad 6, and then the anti-loosening pad 6 and the anti-skid pad 12 are connected through the cooperation of the step seat 11 and the second step seat 13. After the installation is completed, the structural stress generated during the installation process can be reduced by the friction between them, thereby improving the anti-loosening effect of the self-tapping screw.

[0040] Finally, when installing the second threaded portion 3 and the self-tapping head 4, the third step seat 14 will also contact the surface of the mounting part, and when the second threaded portion 3 is twisted, the surface of the mounting part is squeezed, so that grooves are generated on the surface of the mounting part. After cooperating with the third step seat 14, the connection between the self-tapping screw and the mounting part is increased, thereby improving the anti-slip effect after installation.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-slip and anti-loosening electric fastening self-tapping screw, comprising a connecting portion (1), characterized in that: The bottom of the connecting part (1) is fixedly connected to a second threaded part (3), the top of the connecting part (1) is fixedly connected to a first threaded part (2), an anti-loosening pad (6) is sleeved on the outer periphery of the second threaded part (3), a groove (7) is provided on the top of the anti-loosening pad (6), a convex ring (8) is fixedly connected to the bottom of the connecting part (1), the convex ring (8) and the groove (7) are adapted to each other, and an anti-loosening component is also sleeved on the outer periphery of the second threaded part (3) for preventing the self-tapping screw from loosening due to vibration after installation.

2. The anti-slip and anti-loosening electric fastening self-tapping screw according to claim 1, characterized in that: The anti-loosening assembly comprises an anti-skid pad (12), the anti-skid pad (12) is sleeved on the outer circumference of the second threaded portion (3), the top of the anti-skid pad (12) is fixedly connected to a second step seat (13), the bottom of the anti-loosening pad (6) is fixedly connected to a step seat one (11), and the step seat one (11) and the second step seat (13) are compatible.

3. The anti-slip and anti-loosening electric fastening self-tapping screw according to claim 2, characterized in that: A third step seat (14) is fixedly connected to the bottom of the anti-skid pad (12); the third step seat (14) is in contact with the surface of the mounting piece and is used to increase the friction between the anti-skid pad (12) and the mounting piece.

4. The anti-slip and anti-loosening electric fastening self-tapping screw according to claim 1, characterized in that: A partition (10) is also fixedly connected to the top of the anti-loosening pad (6), and the partition (10) is installed inside the groove (7).

5. The anti-slip and anti-loosening electric fastening self-tapping screw according to claim 1, characterized in that: A gasket (5) is installed on the top of the connecting portion (1) to increase friction with the top mounting member.

6. The anti-slip and anti-loosening electric fastening self-tapping screw according to claim 1, characterized in that: A notch (9) is provided on the outer side of the anti-loosening pad (6), and the notch (9) is connected to the groove (7).

7. The anti-slip and anti-loosening electric fastening self-tapping screw according to claim 1, characterized in that: A self-tapping head (4) is fixedly connected to the bottom of the second threaded portion (3) to provide a self-tapping function.

8. The anti-slip and anti-loosening electric fastening self-tapping screw according to claim 1, characterized in that: The length ratio between the first threaded portion (2) and the second threaded portion (3) is 1:1.5.