Fastener structure with anti-theft function

Abstract

The invention relates to the technical field of fasteners, in particular to an anti-theft fastener structure which comprises a fixing plate, a nut is arranged at the top of the fixing plate, a bolt rod is fixedly connected to the bottom of the nut, the bolt rod penetrates through the fixing plate and extends to the bottom of the fixing plate, and the bolt rod is in threaded connection with the fixing plate. An anti-theft groove is formed in the center of the top of the nut, a mounting cap is arranged at the top of the fixing plate, an extension block is fixedly connected to the bottom of the mounting cap, the mounting cap is located over the nut, the extension block extends into the anti-theft groove and is connected with the anti-theft groove in an inserted mode, the mounting cap is located on the outer surface of the nut, and the anti-theft groove and the extension block are both quincunx-shaped. According to the anti-theft bolt, the mounting cap, the nut, the anti-theft groove and the extension block are arranged, the anti-theft groove is formed in the top of the nut, the anti-theft groove is in a quincunx shape, the bolt rod can be taken out only through a special disassembling tool, and therefore the anti-theft effect of the fastener is improved, and practicability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fasteners, and in particular to a fastener structure with anti-theft function. Background Art

[0002] Fasteners, also known as standard parts in the market, are a general term for a class of mechanical parts used to fasten and connect two or more parts or components into a whole. They are characterized by a wide variety of varieties and specifications, different performance and uses, and a very high degree of standardization, serialization, and generalization. Fasteners are the most widely used mechanical basic parts with a large demand. Fasteners are mechanical parts used for fastening connections and are extremely widely applied. All kinds of fasteners can be seen on various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, meters, and supplies, etc. They are characterized by a wide variety of varieties and specifications, different performance and uses, and a very high degree of standardization, serialization, and generalization. Therefore, some people call a class of fasteners with existing national standards standard fasteners or simply standard parts.

[0003] In the prior art, such as CN209458265U, a high-strength anti-theft bolt fastener, the present invention uses the cooperation of a limit block, a limit groove, an elastic connecting piece, and a self-tightening block. By inserting the limit block into the limit groove, the anti-theft bolt can be limited. Through the elastic connecting piece driving the self-tightening block to generate pressure on the first fixing block and driving the limit block to move, the fastening effect of the anti-theft bolt can be strengthened, solving the problems that the existing anti-theft bolt fasteners have a weak fastening ability for the anti-theft bolt and there is no limiting function for the anti-theft bolt inside the existing fasteners. This high-strength anti-theft bolt fastener has the advantages of good fastening effect and strong limiting function and is worthy of promotion. By setting a plurality of moving holes and connecting the polygonal groove and the second nut, the limit can move from the inner cavity of the moving hole to the inner cavity of the limit groove to complete the limitation of the anti-theft bolt, improving the fixing effect on the anti-theft bolt.

[0004] However, there are still certain deficiencies in the process of using this device. This anti-theft fastener only limits the second nut through the limit block to limit and prevent theft of the second nut and the bolt rod. However, the limit block is in a movable connection state in the moving hole, and its stability is poor. At the same time, there are no anti-theft facilities on the outer surface of the first nut, reducing safety. Only through the threaded connection between the first nut and the bolt rod, if the first nut is damaged, it will affect the overall use, thereby reducing the practicality. Summary of the Invention

[0005] The purpose of the present invention is to provide a fastener structure with an anti-theft function to solve the problem proposed in the above background technology that the anti-theft fastener only limits the second nut through the limiting block, so as to limit and prevent theft of the second nut and the bolt rod. However, the limiting block is in a movable connection state in the movable hole, and its stability is poor. At the same time, there are no anti-theft facilities on the outer surface of the first nut, reducing safety. Only through the threaded connection between the first nut and the bolt rod, if the first nut is damaged, it will affect the overall use, thereby reducing the practicability.

[0006] To achieve the above object, the present invention provides the following technical solutions: A fastener structure with an anti-theft function includes a fixing plate. A nut is arranged on the top of the fixing plate. The bottom of the nut is fixedly connected with a bolt rod. The bolt rod penetrates through the fixing plate and extends to the bottom of the fixing plate. The bolt rod is threadedly connected with the fixing plate. A theft-proof groove is opened at the center position of the top of the nut. An installation cap is arranged on the top of the fixing plate. The bottom of the installation cap is fixedly connected with an extension block. The installation cap is located directly above the nut. The extension block extends into the theft-proof groove. The extension block is inserted into the theft-proof groove. The installation cap is located on the outer surface of the nut. The shapes of the theft-proof groove and the extension block are both plum blossom shapes.

[0007] As a preferred solution of the present invention, the outer surface of the bolt rod is threadedly connected with a first nut and a second nut respectively. The first nut and the second nut are both located at the bottom of the fixing plate. The first nut is located on the top of the second nut. The bottom of the first nut is fixedly connected with a clamping plate. A clamping groove is opened at the top of the second nut. The clamping plate extends into the clamping groove and is clamped with the clamping groove.

[0008] As a preferred solution of the present invention, a mounting gasket is slidably connected to the outer surface of the bolt rod. The mounting gasket is located between the nut and the fixing plate. A connection clamping groove is opened at the top of the mounting gasket. The bottom of the installation cap extends into the connection clamping groove and is clamped with the connection clamping groove.

[0009] As a preferred solution of the present invention, an insertion hole is opened on the side surface of the nut. A fixed insertion plate is arranged on the side surface of the installation cap. The fixed insertion plate penetrates through the installation cap and extends into the insertion hole. The fixed insertion plate is inserted into the installation cap.

[0010] As a preferred solution of the present invention, an anti-slip groove is opened on the side surface of the installation cap. An anti-corrosion solution is coated on the outer surface of the installation cap.

[0011] As a preferred solution of the present invention, the first nut and the second nut are of the same size. The materials of the first nut, the second nut, the bolt rod and the nut are all alloy steel.

[0012] As a preferred embodiment of the present invention, two fixing plates are provided, the two fixing plates are opposite in position, and the two fixing plates are both made of stainless steel.

[0013] As a preferred embodiment of the present invention, the mounting cap is located at the middle position of the top of the fixing plate, and the mounting cap is made of stainless steel.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In the present invention, by providing a mounting cap, a nut, an anti-theft groove and an extension block, since an anti-theft groove is provided at the top of the nut, and the shape of the anti-theft groove is a plum blossom shape, a special disassembly tool is required to remove the bolt rod, thereby improving the anti-theft effect of the fastener. Among them, an extension block is provided on the bottom wall of the mounting cap, and the extension block extends into the anti-theft groove and is inserted into the anti-theft groove, which can not only protect the nut, but also prevent the outside from damaging the anti-theft groove. At the same time, the nut and the mounting cap are fixed by a fixing plate, thereby improving the fixing effect between the two and improving the practicability.

[0015] 2. In the present invention, by providing the cooperation of a first nut, a second nut, a clamping groove and a clamping plate, since both the first nut and the second nut are threadedly connected to the bolt rod, a clamping plate is provided at the bottom of the first nut, and a clamping groove is provided at the top of the second nut. The clamping plate extends into the clamping groove and is clamped with the clamping groove, thereby not only improving the stability during work, but also not affecting the overall use if one of the nuts is damaged, thereby improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the bottom of the present invention; Figure 3 is an exploded view of the mounting cap of the present invention; Figure 4 is a schematic diagram of the nut and bolt rod of the present invention; Figure 5 is a schematic diagram of the bottom structure of the mounting cap of the present invention; Figure 6 is an exploded view of the first nut and the second nut of the present invention.

[0017] In the figure: 1. Fixing plate; 2. Mounting cap; 3. Bolt rod; 4. Mounting gasket; 5. Anti-slip groove; 6. Fixing plate; 7. First nut; 8. Second nut; 9. Nut; 10. Anti-theft groove; 11. Connection clamping groove; 12. Insertion hole; 13. Extension block; 14. Clamping plate; 15. Clamping groove. DETAILED DESCRIPTION OF THE INVENTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] For the embodiments, please refer to Figures 1-6 , the present invention provides a technical solution: A fastener structure with an anti-theft function includes a fixing plate 1. A nut 9 is provided on the top of the fixing plate 1. A bolt rod 3 is fixedly connected to the bottom of the nut 9. The bolt rod 3 penetrates through the fixing plate 1 and extends to the bottom of the fixing plate 1. The bolt rod 3 is threadedly connected to the fixing plate 1. An anti-theft groove 10 is formed at the center of the top of the nut 9. An installation cap 2 is provided on the top of the fixing plate 1. An extension block 13 is fixedly connected to the bottom of the installation cap 2. The installation cap 2 is located directly above the nut 9. The extension block 13 extends into the anti-theft groove 10. The extension block 13 is inserted into the anti-theft groove 10. The installation cap 2 is located on the outer surface of the nut 9. The shapes of the anti-theft groove 10 and the extension block 13 are both plum blossom shapes. A mounting gasket 4 is slidably connected to the outer surface of the bolt rod 3. The mounting gasket 4 is located between the nut 9 and the fixing plate 1. A connection card slot 11 is formed at the top of the mounting gasket 4. The bottom of the installation cap 2 extends into the connection card slot 11 and is snap-fitted with the connection card slot 11.

[0020] Among them, the shape of the anti-theft groove 10 is a plum blossom shape, and a special disassembly tool is required to remove the bolt rod 3, thereby improving the anti-theft effect of the fastener. Among them, an extension block 13 is provided at the bottom of the installation cap 2. The extension block 13 extends into the anti-theft groove 10 and is inserted into the anti-theft groove 10, which can not only protect the nut 9 but also prevent the outside from damaging the anti-theft groove 10.

[0021] In this embodiment, according to Figure 1 , Figure 2 , Figure 3 Figure 4 , Figure 5 and Figure 6As shown, the outer surface of the bolt rod 3 is threadedly connected with a first nut 7 and a second nut 8 respectively. Both the first nut 7 and the second nut 8 are located at the bottom of the fixing plate 1. The first nut 7 is located on the top of the second nut 8. A clamping plate 14 is fixedly connected to the bottom of the first nut 7. A clamping groove 15 is formed in the top of the second nut 8. The clamping plate 14 extends into the clamping groove 15 and is clamped with the clamping groove 15. A jack 12 is formed in the side surface of the nut 9. A fixed insertion plate 6 is arranged on the side surface of the mounting cap 2. The fixed insertion plate 6 penetrates through the mounting cap 2 and extends into the jack 12. The fixed insertion plate 6 is inserted into the mounting cap 2. An anti-slip groove 5 is formed in the side surface of the mounting cap 2. The outer surface of the mounting cap 2 is coated with an anti-corrosion solution. The first nut 7 and the second nut 8 are of the same size. The materials of the first nut 7, the second nut 8, the bolt rod 3 and the nut 9 are all alloy steel. Two fixed insertion plates 6 are provided. The two fixed insertion plates 6 are opposite in position. The materials of the two fixed insertion plates 6 are both stainless steel. The mounting cap 2 is located at the middle position on the top of the fixing plate 1. The material of the mounting cap 2 is stainless steel.

[0022] Among them, both the first nut 7 and the second nut 8 are threadedly connected with the bolt rod 3. A clamping plate 14 is arranged at the bottom of the first nut 7. A clamping groove 15 is formed in the top of the second nut 8. The clamping plate 14 extends into the clamping groove 15 and is clamped with the clamping groove 15. Thus, during operation, not only the stability is improved, but also if one of the nuts is damaged, it will not affect the overall use.

[0023] Working process of the present invention: When using the fastener structure with anti-theft function designed by this solution, first check whether all components of the fastener are in normal use. Install it in a suitable working area by screwing the bolt rod 3. At the same time, a first nut 7 and a second nut 8 are threadedly connected to the outer surface of the bolt rod 3 to improve the stability of the bolt rod 3. After installation, the installation cap 2 is fixed to the outer surface of the nut 9 through the fixed insertion plate 6. At the same time, the bottom of the installation cap 2 is connected to the card slot 11 at an early time in Yaan. Thus, the installation cap 2 protects the nut 9. Since an anti-theft groove 10 is provided at the top of the nut 9 and the shape of the anti-theft groove 10 is a plum blossom shape, a special disassembly tool is required to remove the bolt rod 3, thereby improving the anti-theft effect of the fastener. Among them, an extension block 13 is provided at the bottom of the installation cap 2, and the extension block 13 extends into the anti-theft groove 10 and is inserted into the anti-theft groove 10, which can not only protect the nut 9, but also prevent the outside from damaging the anti-theft groove 10. At the same time, the nut 9 and the installation cap 2 are fixed through the fixed insertion plate 6, thereby improving the fixing effect between the two and improving the practicability. The first nut 7 and the second nut 8 are both threadedly connected to the bolt rod 3. A clamping plate 14 is provided at the bottom of the first nut 7, and a clamping groove 15 is provided at the top of the second nut 8. The clamping plate 14 extends into the clamping groove 15 and is clamped with the clamping groove 15. Thus, during work, not only the stability is improved, but also if one of the nuts is damaged, it will not affect the overall use. Among them, the materials of the first nut 7, the second nut 8, the bolt rod 3 and the nut 9 are all alloy steel, thereby improving the strength and durability.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fastener structure with anti-theft function, comprising a fixing plate (1), characterized in that: A nut (9) is provided at the top of the fixed plate (1). A bolt rod (3) is fixedly connected to the bottom of the nut (9). The bolt rod (3) penetrates through the fixed plate (1) and extends to the bottom of the fixed plate (1). The bolt rod (3) is threadedly connected to the fixed plate (1). An anti-theft groove (10) is formed at the center of the top of the nut (9). An installation cap (2) is provided at the top of the fixed plate (1). An extension block (13) is fixedly connected to the bottom of the installation cap (2). The installation cap (2) is located directly above the nut (9). The extension block (13) extends into the anti-theft groove (10). The extension block (13) is inserted into the anti-theft groove (10). The installation cap (2) is located on the outer surface of the nut (9). The shapes of the anti-theft groove (10) and the extension block (13) are both plum blossom shapes.

2. The structure of a fastener with anti-theft function according to claim 1, characterized in that: A first nut (7) and a second nut (8) are respectively threadedly connected to the outer surface of the bolt rod (3). Both the first nut (7) and the second nut (8) are located at the bottom of the fixed plate (1). The first nut (7) is located above the second nut (8). A clamping plate (14) is fixedly connected to the bottom of the first nut (7). A clamping groove (15) is formed at the top of the second nut (8). The clamping plate (14) extends into the clamping groove (15) and is clamped with the clamping groove (15).

3. A fastener structure with anti-theft function according to claim 1, characterized in that: An installation gasket (4) is slidably connected to the outer surface of the bolt rod (3). The installation gasket (4) is located between the nut (9) and the fixed plate (1). A connection clamping groove (11) is formed at the top of the installation gasket (4). The bottom of the installation cap (2) extends into the connection clamping groove (11) and is clamped with the connection clamping groove (11).

4. A fastener structure with anti-theft function according to claim 1, characterized in that: An insertion hole (12) is formed on the side surface of the nut (9). A fixed insertion plate (6) is provided on the side surface of the installation cap (2). The fixed insertion plate (6) penetrates through the installation cap (2) and extends into the insertion hole (12). The fixed insertion plate (6) is inserted into the installation cap (2).

5. A fastener structure with an anti-theft function according to claim 1, characterized in that: An anti-slip groove (5) is formed on the side surface of the installation cap (2). An anti-corrosion solution is coated on the outer surface of the installation cap (2).

6. The structure of a fastener with anti-theft function according to claim 2, characterized in that: The first nut (7) and the second nut (8) are of the same size. The materials of the first nut (7), the second nut (8), the bolt rod (3) and the nut (9) are all alloy steel.

7. A fastener structure with anti-theft function according to claim 4, characterized in that: There are two fixed insertion plates (6). The two fixed insertion plates (6) are opposite in position. The materials of the two fixed insertion plates (6) are both stainless steel.

8. A fastener structure with anti-theft function according to claim 1, characterized in that: The installation cap (2) is located at the middle position of the top of the fixed plate (1). The material of the installation cap (2) is stainless steel.

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