Anti-disassembly safety screw for locking object
By designing a receiving groove and a limiting device on the top of the screw, the problem of easy disassembly of traditional screws is solved, achieving the effect of preventing disassembly and ensuring the stability and safety of the connection between objects.
Patent Information
- Application Number
- CN202520123065.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Traditional safety screws have their tightening mechanism located directly on the top of the screw head, making them easy to disassemble when connected, thus failing to meet the requirements for safe disassembly.
A tamper-proof safety screw has been designed, which includes a receiving groove on the top of the screw and a mounting fastening seat. The limiting device includes a circular receiving groove and a limiting block. By moving the limiting block and acting on the spring, the mounting fastening seat cannot be rotated, thus fixing the screw.
It effectively prevents screw removal, ensuring the stability and safety of object connections and preventing improper disassembly.
Smart Images

Figure CN223622001U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of safety screws, specifically an anti-tamper safety screw used to secure objects. Background Technology
[0002] Screws are tools that use the physical and mathematical principles of inclined planes, circular rotation, and friction to gradually tighten objects and machine parts. Screw is a general term for fasteners and is a common colloquial term. Screws are indispensable industrial necessities in daily life: extremely small screws are used in cameras, eyeglasses, clocks, and electronics; general screws are used in televisions, electrical products, musical instruments, and furniture; large screws and nuts are used in engineering, construction, and bridges; and a combination of screws of different sizes is used in transportation equipment, airplanes, trams, and automobiles.
[0003] When connecting two objects, screws are often used to lock and secure them. Traditional safety screws often have their tightening structure located directly on the top of the screw head, which allows them to be easily disassembled during actual use. As a result, the separation of two objects cannot meet the requirements of safe anti-disassembly. Therefore, those skilled in the art have provided an anti-disassembly safety screw for locking objects to solve the problems mentioned in the background art. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, traditional safety screws often have their tightening structure directly located on the top of the screw head, which allows for easy disassembly during actual use. This results in the inability to meet the safety and anti-disassembly requirements when separating two objects. This utility model proposes an anti-disassembly safety screw for locking objects.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a tamper-proof safety screw for locking objects, including a screw, a receiving groove is provided on the top of the screw, an installation fastening seat is inserted inside the receiving groove, and a limit device is provided on both sides of the installation fastening seat.
[0006] The limiting device includes a circular storage groove, which is opened at the top of the screw and located outside the receiving groove. The mounting fastening base has a first storage groove on both sides, and a limiting block is interspersed inside the first storage groove.
[0007] Preferably, a first spring is fixedly installed on one side of the limiting block, and one side of the first spring contacts the inner cavity of the first storage groove.
[0008] Preferably, the mounting fastening base has guide grooves on both sides of the first storage groove, and guide blocks are slidably connected inside the guide grooves. One side of the guide block is fixedly connected to the limiting block.
[0009] Preferably, a second receiving groove is provided inside the screw and at the bottom of the receiving groove, the bottom of the mounting fastener extends into the inside of the second receiving groove, and a second spring is fixedly installed at the bottom of the mounting fastener and inside the second receiving groove.
[0010] Preferably, the screw has a meshing groove inside and on both sides of the second receiving groove, and a meshing tooth is provided inside the meshing groove. One side of the meshing tooth is fixedly connected to the mounting fastening seat.
[0011] Preferably, the top of the mounting fastening base is provided with a hexagonal connecting groove, and the top of the mounting fastening base and the inner side of the hexagonal connecting groove are provided with a cross-shaped connecting groove.
[0012] The advantages of this utility model are:
[0013] This invention achieves connection between devices through the setting of screws. The mounting fastening seat is used to drive the screw to rotate, thereby connecting the two objects. The limiting block is used to block the mounting fastening seat, so that the mounting fastening seat extends to the top of the screw and drives the screw to rotate, thus connecting the two objects. At the same time, the limiting block moves into the inside of the circular storage groove, so that the mounting fastening seat is stored in the receiving groove, thereby allowing the mounting fastening seat to rotate relative to the screw but preventing the screw from rotating, thus avoiding the disassembly of the screw. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the equiaxed side section structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the structure after installation of this utility model;
[0018] Figure 4 This is a schematic diagram of the equiaxed cross-section structure of the present invention after installation;
[0019] Figure 5 This is a schematic diagram of the screw structure of this utility model;
[0020] Figure 6 This is a schematic diagram of the equiaxed side structure of the screw according to this utility model;
[0021] Figure 7 This is a schematic diagram of the mounting and fastening base structure of this utility model;
[0022] Figure 8 This is a schematic diagram of the equiaxed cross-section structure of the mounting and fastening seat of this utility model;
[0023] Figure 9 This is a schematic diagram of the transverse cross-sectional structure of the mounting and fastening base of this utility model;
[0024] Figure 10 This is a schematic diagram of the limiting block structure of this utility model.
[0025] In the diagram: 1. Screw; 2. Mounting fastener; 3. Limiting device; 301. Circular storage slot; 302. Limiting block; 303. Guide slot; 304. Guide block; 305. First storage slot; 306. First spring; 4. Hexagonal connecting slot; 5. Cross-shaped connecting slot; 6. Second storage slot; 7. Second spring; 8. Engaging slot; 9. Engaging teeth; 10. Receiving slot. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0027] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.
[0028] This application discloses an anti-tamper safety screw for securing objects. (See also...) Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 9 and Figure 10 A tamper-proof safety screw for locking objects includes a screw 1, a receiving groove 10 is provided on the top of the screw 1, a mounting fastening seat 2 is inserted inside the receiving groove 10, and a limit device 3 is provided on both sides of the mounting fastening seat 2.
[0029] The limiting device 3 includes a circular storage groove 301, which is opened on the top of the screw 1 and located outside the receiving groove 10. The two sides of the mounting fastening base 2 are provided with first storage grooves 305, and the first storage grooves 305 are interspersed with limiting blocks 302.
[0030] Reference Figure 9 and Figure 10 A first spring 306 is fixedly installed on one side of the limiting block 302. One side of the first spring 306 contacts the inner cavity of the first storage groove 305. The first spring 306 is used to push the limiting block 302 to the outside of the first storage groove 305, thereby pushing the limiting block 302 out of the inside of the first storage groove 305, so as to facilitate the limiting and fixing of the mounting fastening seat 2.
[0031] Reference Figure 9 and Figure 10 The mounting fastening base 2 has guide grooves 303 on both sides of the first storage groove 305. A guide block 304 is slidably connected inside the guide groove 303. One side of the guide block 304 is fixedly connected to the limiting block 302. The guide groove 303 and the guide block 304 are used to limit the limiting block 302 and increase the stability of the limiting block 302.
[0032] Reference Figure 2 , Figure 4 Figure 5 Figure 6 and Figure 7 A second receiving groove 6 is provided inside the screw 1 and at the bottom of the receiving groove 10. The bottom of the mounting fastening seat 2 extends into the second receiving groove 6. A second spring 7 is fixedly installed at the bottom of the mounting fastening seat 2 and inside the second receiving groove 6. The second receiving groove 6 is used to accommodate the bottom of the mounting fastening seat 2 and to install the second spring 7. The second spring 7 is used to press the mounting fastening seat 2, thereby causing the mounting fastening seat 2 to extend out from inside the receiving groove 10.
[0033] Reference Figure 2 , Figure 4 Figure 5 Figure 6 and Figure 7 The screw 1 has a meshing groove 8 inside and on both sides of the second storage groove 6. The meshing groove 8 has a meshing tooth 9 inside. One side of the meshing tooth 9 is fixedly connected to the mounting fastening base 2. The meshing groove 8 and the meshing tooth 9 are used to connect the bottom of the mounting fastening base 2 and the screw 1, so that the mounting fastening base 2 drives the screw 1 to rotate and connect the two objects.
[0034] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 ,and Figure 8 The top of the mounting fastening base 2 is provided with a hexagonal connecting groove 4, and the top of the mounting fastening base 2 and the inner side of the hexagonal connecting groove 4 is provided with a cross-shaped connecting groove 5. The hexagonal connecting groove 4 facilitates the rotation and fixing of the whole by a hexagonal wrench, and the cross-shaped connecting groove 5 facilitates the rotation and fixing of the whole by a cross-shaped screwdriver.
[0035] Working principle: The entire assembly is inserted into the two objects to be fixed. It is then disassembled into the cross-shaped connecting groove 5 or hexagonal connecting groove 4 using a Phillips screwdriver or hexagonal wrench. The screwdriver or wrench rotates the mounting fastening base 2, causing the engagement teeth 9 at the bottom of the mounting fastening base 2 to engage with the engagement groove 8. The engagement groove 8 and engagement teeth 9 transmit the rotational torque of the mounting fastening base 2 to the screw 1, causing it to rotate and thus tightening the screw 1 between the two objects. After fixing, no further disassembly is required. The limiting block 302 is then pressed into the first receiving groove 305, allowing the mounting fastening base 2 to rise and fall within the receiving groove 10, ultimately housing the mounting fastening base 2 and the contents of the pressing receiving groove 10 into the screw 1. Inside, as the mounting fastener 2 descends, the limiting block 302 penetrates into the circular receiving groove 301. Under the compression of the first spring 306, the limiting block 302 penetrates into the circular receiving groove 301, thereby locking and fixing the mounting fastener 2. At the same time, as the mounting fastener 2 descends, the biting teeth 9 at the bottom of the mounting fastener 2 move downward from the inside of the biting groove 8 and separate from the biting groove 8. If the mounting fastener 2 rotates later, the biting teeth 9 will not be connected to the biting groove 8, allowing the mounting fastener 2 to rotate freely inside the receiving groove 10, thus preventing the screw 1 from being disassembled. At the same time, the limiting block 302 prevents the mounting fastener 2 from extending out of the receiving groove 10, thus preventing the screw 1 from being disassembled.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A tamper-proof safety screw for securing objects, characterized in that: Includes a screw (1), the top of the screw (1) is provided with a receiving groove (10), a mounting fastening seat (2) is inserted inside the receiving groove (10), and a limit device (3) is provided on both sides of the mounting fastening seat (2); The limiting device (3) includes a circular storage groove (301), which is located on the top of the screw (1) and outside the receiving groove (10). The mounting fastening base (2) has a first storage groove (305) on both sides, and a limiting block (302) is inserted inside the first storage groove (305).
2. The tamper-proof safety screw for securing objects according to claim 1, characterized in that: A first spring (306) is fixedly installed on one side of the limiting block (302), and one side of the first spring (306) is in contact with the inner cavity of the first receiving groove (305).
3. The tamper-proof safety screw for securing objects according to claim 1, characterized in that: The mounting fastening base (2) has guide grooves (303) on both sides of the first storage groove (305). A guide block (304) is slidably connected inside the guide groove (303), and one side of the guide block (304) is fixedly connected to the limiting block (302).
4. A tamper-proof safety screw for securing objects according to claim 1, characterized in that: The screw (1) has a second storage groove (6) inside and at the bottom of the receiving groove (10). The bottom of the mounting fastening seat (2) extends into the second storage groove (6). A second spring (7) is fixedly installed at the bottom of the mounting fastening seat (2) inside the second storage groove (6).
5. A tamper-proof safety screw for securing objects according to claim 4, characterized in that: The screw (1) has a meshing groove (8) inside and on both sides of the second storage groove (6). The meshing groove (8) has a meshing tooth (9) inside. One side of the meshing tooth (9) is fixedly connected to the mounting fastening seat (2).
6. A tamper-proof safety screw for securing objects according to claim 1, characterized in that: The top of the mounting fastening base (2) is provided with a hexagonal connecting groove (4), and the top of the mounting fastening base (2) and the inner side of the hexagonal connecting groove (4) is provided with a cross-shaped connecting groove (5).