Tamperproof fastening screw

Abstract

The utility model provides a kind of fastening screw for preventing disassembly, it is related to fastener technical field, including screw main part, the outside of screw main body is equipped with mounting sleeve, the inside of mounting sleeve is distributed with multiple elastic buckle parts, the inside of mounting sleeve is provided with pry shield, the inside of pry shield is provided with snap ring.The utility model installs pry shield in the inside of mounting sleeve, and makes elastic buckle part and snap ring be clamped, which is beneficial to provide certain limiting effect for pry shield, the inside of screw main body is provided with blocking ring, which is beneficial to provide certain limiting effect for the top of pry shield, and it is beneficial to realize protective effect for the driving structure on the top of screw main body, to avoid driving structure directly exposed, and further reduce the condition that screw main body is directly disassembled, when screw main body needs to be disassembled, pry shield needs to be pried open using professional tool, which increases disassembly difficulty, and further prevents screw main body from being disassembled.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to a fastening screw that prevents disassembly. Background Technology

[0002] Screws, as a common fastener, are widely used in machinery manufacturing, electronic equipment, construction engineering, public facilities, and other fields. A fastening screw is a fastener used to connect and secure two or more parts. It typically consists of a threaded shank and a nut; rotating the threaded shank secures the nut tightly to the connected parts. Fastening screws are typically made of materials such as stainless steel, carbon steel, and alloy steel to meet the needs of different working environments.

[0003] When using existing fastening screws, the drive structure at the top is usually directly exposed without any shielding or protection. This makes it easy for the fastening screw to directly contact the drive structure and apply torque without special tools, easily completing the disassembly operation, which seriously affects the overall safety of the equipment. Utility Model Content

[0004] The purpose of this invention is to address the problem in the prior art where the drive structure at the top of a fastening screw is usually directly exposed without any shielding or protective design. This allows the fastening screw to easily contact the drive structure and apply torque without the need for special tools, thus easily completing the disassembly operation and seriously affecting the overall safety of the equipment. Therefore, this invention proposes a fastening screw that prevents disassembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fastening screw to prevent disassembly, comprising a screw body, an installation sleeve sleeved on the outer side of the screw body, a plurality of elastic fasteners distributed inside the installation sleeve, an anti-pry cover inside the installation sleeve, and a retaining ring inside the anti-pry cover, the retaining ring engaging with the elastic fasteners.

[0006] Preferably, the bottom of the screw body is provided with a through groove, a rotating shaft is installed inside the through groove, and an insert pin is connected to the bottom of the rotating shaft.

[0007] Preferably, a retaining ring is provided on the inner side of the mounting sleeve, and the bottom of the retaining ring is connected to the top of the anti-pry cover.

[0008] Preferably, a limiting ring is provided inside the mounting sleeve, and the top of the limiting ring is connected to the bottom of the screw body.

[0009] Preferably, a glue pouch is provided on the outer side of the screw body.

[0010] Preferably, the outer side of the insertion pin is provided with multiple anti-barb studs.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, by sleeved on the outside of the mounting sleeve, the limiting ring helps to limit the screw body. Then, rotating the screw body allows it to connect with the nut thread, which helps to fasten the two connecting parts. After installation and fastening, the anti-pry cover is installed inside the mounting sleeve, causing the elastic buckle to engage with the retaining ring, which helps to limit the anti-pry cover. The retaining ring is set inside the screw body, which helps to limit the top of the anti-pry cover and protects the drive structure at the top of the screw body, preventing the drive structure from being directly exposed. This reduces the possibility of the screw body being directly disassembled, ensuring the stability and reliability of the screw body fastening the connecting parts. When it is necessary to disassemble the screw body, a special tool is required to pry open the anti-pry cover, increasing the difficulty of disassembly and further preventing the screw body from being disassembled.

[0012] 2. In this utility model, a through groove is provided at the bottom of the screw body. When the screw body is threadedly connected to the nut inside the mounting groove, the screw body can apply downward pressure. The rotation of the shaft can then push the insert pin into the mounting groove, causing the insert pin to engage with the anti-spiking pin and penetrate into the mounting groove. This helps ensure the stability of the screw body's fastening installation. At the same time, when the screw body applies downward pressure, it causes the glue bag to be squeezed against the inner wall of the mounting groove, causing the glue bag to rupture. The adhesive inside the glue bag can then flow into the mounting groove, further filling the gap between the mounting groove and the screw body. This strengthens the fastening strength of the screw body for the connector and improves the screw body's resistance to loosening. Attached Figure Description

[0013] Figure 1 A three-dimensional structural diagram of a fastening screw that prevents disassembly is provided for this utility model. Figure 2 This utility model presents a schematic diagram of a fastening screw designed to prevent disassembly from another angle. Figure 3 A schematic diagram of the unfolded cross-sectional structure of a fastening screw that prevents disassembly is provided for this utility model. Figure 4 This utility model presents a partially exploded structural diagram of a fastening screw designed to prevent disassembly.

[0014] Illustration: 1. Screw body; 2. Glue bag; 3. Limiting ring; 4. Mounting sleeve; 5. Anti-pry cover; 6. Retaining ring; 7. Snap ring; 8. Elastic buckle; 9. Through groove; 10. Rotating shaft; 11. Insert screw. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] Example 1: As Figures 1-4 As shown, this utility model provides a technical solution: a fastening screw to prevent disassembly, including a screw body 1, an installation sleeve 4 sleeved on the outside of the screw body 1, a plurality of elastic fasteners 8 distributed inside the installation sleeve 4, an anti-pry cover 5 provided inside the installation sleeve 4, a retaining ring 7 provided on the inner side of the anti-pry cover 5, the retaining ring 7 engaging with the elastic fasteners 8, a retaining ring 6 provided on the inner side of the installation sleeve 4, the bottom of the retaining ring 6 connecting to the top of the anti-pry cover 5, and a limiting ring 3 provided inside the installation sleeve 4, the top of the limiting ring 3 connecting to the bottom of the screw body 1.

[0018] In this embodiment, by fixing the nut inside the mounting groove of the connector, the screw body 1 is sleeved on the outside of the mounting sleeve 4. The limiting ring 3 helps to limit the screw body 1. Then, the screw body 1 is rotated so that the screw body 1 is threadedly connected to the nut, which helps to fasten the two connectors. After the installation and fastening are completed, the anti-pry cover 5 is installed inside the mounting sleeve 4, which causes the elastic buckle 8 to engage with the retaining ring 7, which helps to limit the anti-pry cover 5. The retaining ring 6 is set inside the screw body 1, which helps to limit the top of the anti-pry cover 5, which helps to protect the drive structure at the top of the screw body 1, avoiding the direct exposure of the drive structure, thereby reducing the possibility of the screw body 1 being directly disassembled, and ensuring the stability and reliability of the fastening of the screw body 1 to the connector. When it is necessary to disassemble the screw body 1, a special tool is required to pry open the anti-pry cover 5, which increases the difficulty of disassembly and further prevents the screw body 1 from being disassembled.

[0019] Example 2: As Figures 1-4 As shown, a through groove 9 is provided at the bottom of the screw body 1, a rotating shaft 10 is installed inside the through groove 9, an insert pin 11 is connected to the bottom of the rotating shaft 10, an adhesive bag 2 is provided on the outside of the screw body 1, and multiple anti-stabs are provided on the outside of the insert pin 11.

[0020] In this embodiment, a through groove 9 is provided at the bottom of the screw body 1. When the screw body 1 is threadedly connected to the nut inside the mounting groove, the screw body 1 can apply downward pressure. The rotating shaft 10 can then be used to push the insert pin 11 into the mounting groove, causing the insert pin 11 to engage with the anti-spiking pin and embed itself into the mounting groove. This helps ensure the stability of the screw body 1 in fastening. At the same time, when the screw body 1 applies downward pressure, it causes the glue bag 2 to be squeezed against the inner wall of the mounting groove, causing the glue bag 2 to rupture. The adhesive inside the glue bag 2 can then flow into the mounting groove, further filling the gap between the mounting groove and the screw body 1. This strengthens the fastening strength of the screw body 1 for the connector and improves the screw body 1's resistance to loosening.

[0021] The working principle of this embodiment is as follows: In use, the nut is first fixed inside the mounting groove of the connector. The screw body 1 is then fitted onto the outside of the mounting sleeve 4. The limiting ring 3 provides a limiting effect on the screw body 1. Then, the screw body 1 is rotated to connect with the nut thread, facilitating the tightening of the two connectors. After installation and tightening, the anti-pry cover 5 is installed inside the mounting sleeve 4, causing the elastic buckle 8 to engage with the retaining ring 7, providing a certain limiting effect on the anti-pry cover 5. The retaining ring 6 is located inside the screw body 1, providing a certain limiting effect on the top of the anti-pry cover 5, thus protecting the drive structure at the top of the screw body 1 and preventing the drive structure from being directly exposed. This reduces the possibility of the screw body 1 being directly disassembled. The bottom of the screw body 1 has a through groove 9. When the screw body 1 is connected to the nut thread inside the mounting groove, the screw body 1 can apply downward pressure. The rotating shaft 10 can be used to rotate the screw body 10, which can push the insert pin 11 into the mounting groove. This allows the insert pin 11 to work with the anti-spiking pin to penetrate into the mounting groove, which helps to ensure the stability of the screw body 1 in the fastening installation. At the same time, when the screw body 1 applies downward pressure, it causes the glue bag 2 to be squeezed against the inner wall of the mounting groove, causing the glue bag 2 to rupture. The adhesive inside the glue bag 2 can flow into the interior of the mounting groove, further filling the gap between the mounting groove and the screw body 1, and strengthening the fastening strength of the screw body 1 for the connector.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A fastening screw to prevent disassembly, comprising a screw body (1), characterized in that: The screw body (1) is fitted with an installation sleeve (4) on its outer side. Multiple elastic fasteners (8) are distributed inside the installation sleeve (4). An anti-pry cover (5) is provided inside the installation sleeve (4). A retaining ring (7) is provided on the inner side of the anti-pry cover (5). The retaining ring (7) is engaged with the elastic fasteners (8).

2. The anti-disassembly fastening screw according to claim 1, characterized in that: The bottom of the screw body (1) is provided with a through groove (9), and a rotating shaft (10) is installed inside the through groove (9). The bottom of the rotating shaft (10) is connected to an insert pin (11).

3. The anti-disassembly fastening screw according to claim 1, characterized in that: The inner side of the mounting sleeve (4) is provided with a retaining ring (6), and the bottom of the retaining ring (6) is connected to the top of the anti-pry cover (5).

4. The anti-disassembly fastening screw according to claim 1, characterized in that: The mounting sleeve (4) is provided with a limiting ring (3) inside, and the top of the limiting ring (3) is connected to the bottom of the screw body (1).

5. The anti-disassembly fastening screw according to claim 1, characterized in that: A glue bag (2) is provided on the outside of the screw body (1).

6. The anti-disassembly fastening screw according to claim 2, characterized in that: The outer side of the insertion nail (11) is provided with multiple anti-stabs.

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