Combined fastener

Abstract

The utility model provides a combined fastener. The combined fastener comprises a bolt and a fastener body, the nut is fixedly connected to the top end of the bolt, first connecting blocks are fixedly connected to the opposite sides of the outer surface of the nut, screws are arranged at the tops of the first connecting blocks, a second gasket is arranged at the bottom of the nut, and first connecting pieces are fixedly connected to the opposite sides of the outer surface of the second gasket; and the nut is in threaded connection to the position, close to the bottom end, of the outer surface of the bolt, second connecting blocks are fixedly connected to the opposite sides of the outer surface of the nut, a first gasket is arranged at the top of the nut, and a second connecting piece is fixedly connected to the opposite side of the outer surface of the first gasket. According to the combined fastener provided by the utility model, the stability of the combined fastener in fixing a mechanical mechanism can be improved through the structure, and meanwhile, the detachable screw is used for preventing loose connection, so that the later disassembly is convenient, and the disassembly difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of combined fasteners, in particular to a combined fastener. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening connections and are extremely widely used. Fasteners are used in a wide range of industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, molds, hydraulics, etc., in various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, meters and supplies.

[0003] There are many types of fasteners, mainly including bolts, studs, screws, nuts, etc. Combination fasteners are a combination of bolts and nuts to form a structure that can fix objects, and the main function of combination fasteners is to provide connection and fixation, transmit force, prevent loosening and reduce shock. Fasteners play a vital role in mechanical equipment. They can not only provide connection and fixation to ensure the normal operation of the equipment and maintain the stability of the structure, but also transmit force to ensure that the force between each component can be accurately transmitted to avoid force loss and equipment damage.

[0004] When bolt fasteners are used to fix mechanical structures, in order to prevent the bolts from loosening due to vibration, latches or adhesives are generally used to assist. Both can prevent loosening during actual use, but when disassembly is required later, it is inconvenient due to the connection method, which increases the difficulty of disassembly.

[0005] Therefore, it is necessary to provide a combined fastener to solve the above technical problems. Utility Model Content

[0006] The utility model provides a combined fastener, which solves the problem that the combined fastener is prevented from loosening by using adhesive or loosening clamping teeth to assist in preventing the loosening, making it inconvenient to disassemble later and increasing the difficulty of disassembly.

[0007] In order to solve the above technical problems, the utility model provides a combined fastener comprising: a bolt;

[0008] A nut, wherein the nut is fixedly connected to the top of the bolt, the outer surface of the nut is fixedly connected to a first connection block on one side opposite to the outer surface, a screw is arranged on the top of the first connection block, a second gasket is arranged at the bottom of the nut, and the outer surface of the second gasket is fixedly connected to the first connection piece on one side opposite to the outer surface;

[0009] A nut, the nut is threadedly connected to the outer surface of the bolt near the bottom end, and second connection blocks are fixedly connected to opposite sides of the outer surface of the nut. A first gasket is arranged on the top of the nut, and second connection pieces are fixedly connected to opposite sides of the outer surface of the first gasket. Threaded holes are provided in a circle at one end of the second gasket and the first gasket;

[0010] Screws are also arranged at the bottom of the second connection blocks. After the screws pass through the second connection blocks and the first connection blocks, they are threadedly connected to the threaded holes on the first gasket and the second gasket, so that the nut and the nut can be connected to the second gasket and the first gasket together, avoiding the loosening of the bolt caused by vibration.

[0011] Preferably, through holes are provided at the tops of the first connection piece and the second connection piece. A connecting rod is arranged at the bottom of one of the second connection pieces;

[0012] When two bolts need to be used in cooperation, the connecting rod can connect the second connection pieces on the two first gaskets through screws.

[0013] Preferably, placing grooves are provided at adjacent ends of the first gasket and the second gasket, and rubber rings are arranged inside the placing grooves;

[0014] The rubber rings contact the mechanical structure, which can increase the friction force.

[0015] Preferably, holes for the screws to pass through are provided on the first connection block and the second connection block, and an internal hexagonal groove is provided at the top of the nut;

[0016] The internal hexagonal groove is convenient for disassembling the bolt when the nut slips.

[0017] Preferably, through openings are provided at the tops of the first gasket and the second gasket.

[0018] Preferably, protective covers are arranged at opposite ends of the first gasket and the second gasket, and fixing pieces are fixedly connected to opposite sides of the outer surface of the protective covers;

[0019] Holes are provided in the fixing pieces for the screws to pass through to connect them to the first connection block and the second connection block. The protective covers can cover the nut and the nut.

[0020] Compared with the related art, the combined fastener provided by the present utility model has the following beneficial effects:

[0021] The present utility model provides a combined fastener. In order to prevent the combined fastener from loosening due to vibration when fixing a mechanical structure, two first connecting blocks are installed on the outer surface of the nut on the bolt. At the same time, two second connecting blocks are also installed on the outer surface of the nut. The first connecting block and the second connecting block are connected to the first gasket and the second gasket by screws, which can prevent the connection between the bolt and the nut from loosening through multiple limit positions. Through this structure, the stability of the combined fastener when fixing a mechanical mechanism can be increased. At the same time, the detachable screws can prevent loosening of the connection, which is convenient for later disassembly and reduces the disassembly difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a preferred embodiment of the combined fastener provided by the present utility model;

[0023] Figure 2 is a schematic structural diagram of the connecting rod provided by the present utility model;

[0024] Figure 3 provided by the present utility model Figure 2 is an enlarged view of the position A shown;

[0025] Figure 4 is a schematic structural diagram of the second connecting block provided by the present utility model;

[0026] Figure 5 provided by the present utility model Figure 4 is an enlarged view of the position B shown.

[0027] Reference numerals in the figure: 1, bolt; 2, first connecting piece; 3, second connecting piece; 4, connecting rod; 5, protective cover; 6, fixing piece; 7, screw; 8, inner hexagonal groove; 9, nut; 10, first connecting block; 11, first gasket; 12, second gasket; 13, perforation; 14, second connecting block; 15, nut; 16, threaded hole; 17, rubber ring; 18, placement groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , wherein, Figure 1 is a schematic structural diagram of a preferred embodiment of the combined fastener provided by the present utility model; Figure 2 is a schematic structural diagram of the connecting rod provided by the present utility model; Figure 3 provided by the present utility model Figure 2 is an enlarged view of the position A shown; Figure 4Schematic diagram of the structure of the connecting block provided by the present utility model; Figure 5 Provided by the present utility model Figure 4 Enlarged view of the position B shown. The combined fastener includes: bolt 1;

[0030] Nut 9, the nut 9 is fixedly connected to the top end of the bolt 1, and on opposite sides of the outer surface of the nut 9 are fixedly connected with first connecting blocks 10. Screws 7 are arranged on the tops of the first connecting blocks 10. A second gasket 12 is arranged at the bottom of the nut 9, and on opposite sides of the outer surface of the second gasket 12 are fixedly connected with first connecting pieces 2;

[0031] Nut 15, the nut 15 is threadedly connected to the outer surface of the bolt 1 near the bottom end. On opposite sides of the outer surface of the nut 15 are fixedly connected with second connecting blocks 14. A first gasket 11 is arranged on the top of the nut 15, and on opposite sides of the outer surface of the first gasket 11 are fixedly connected with second connecting pieces 3. One end of each of the second gasket 12 and the first gasket 11 is provided with a circle of threaded holes 16;

[0032] Screws 7 are also arranged at the bottoms of the second connecting blocks 14. After the screws 7 pass through the second connecting blocks 14 and the first connecting blocks 10 and are threadedly connected to the threaded holes 16 on the first gasket 11 and the second gasket 12, the nut 15 and the nut 9 can be connected to the second gasket 12 and the first gasket 11, preventing the bolt 1 from loosening due to vibration. The first connecting pieces 2 and the second connecting pieces 3 are fixed at the corresponding positions of the mechanical structures to be connected through the screws 7.

[0033] Through holes 13 are provided through the tops of the first connecting pieces 2 and the second connecting pieces 3. A connecting rod 4 is arranged at the bottom of one of the second connecting pieces 3;

[0034] When two bolts 1 need to be used in cooperation, the connecting rod 4 can connect the second connecting pieces 3 on the two first gaskets 11 through the screws 7, increasing the stability.

[0035] Placing grooves 18 are provided at adjacent ends of the first gasket 11 and the second gasket 12, and rubber rings 17 are arranged inside the placing grooves 18;

[0036] The rubber rings 17 are in contact with the mechanical structures, which can increase the friction. The positions and shapes of the placing grooves 18 refer to Figure 5 .

[0037] Holes for the screws 7 to pass through are provided on the first connecting blocks 10 and the second connecting blocks 14, and an internal hexagonal groove 8 is provided on the top of the nut 9;

[0038] The six inner grooves 8 facilitate the removal of the bolt 1 when the nut 9 slips, and the holes in the first connecting block 10 and the second connecting block 14 facilitate their connection with the first gasket 11 and the second gasket 12.

[0039] Through holes are provided at the tops of the first gasket 11 and the second gasket 12;

[0040] The first gasket 11 and the second gasket 12 are sleeved on the outer surface of the bolt 1.

[0041] Protective covers 5 are provided at the opposite ends of the first gasket 11 and the second gasket 12, and fixing pieces 6 are fixedly connected to the opposite sides of the outer surfaces of the protective covers 5;

[0042] Holes are provided in the fixing pieces 6 to facilitate the passing of the screws 7 to connect them with the first connecting block 10 and the second connecting block 14. The protective covers 5 can cover the nut 15 and the nut 9 to reduce the erosion of rainwater or dust.

[0043] The working principle of the combined fastener provided by the present utility model is as follows:

[0044] Two first connecting blocks 10 are installed on the outer surface of the nut 9 on the bolt 1. At the same time, two second connecting blocks 14 are also installed on the outer surface of the nut 15. The first connecting block 10 and the second connecting block 14 are connected to the first gasket 11 and the second gasket 12 through screws 7. Multiple limits can be used to prevent the loosening of the connection between the bolt 1 and the nut 9. In actual use, first, the first connecting piece 2 and the second connecting piece 3 on the second gasket 12 and the second gasket 12 are fixed to the top and bottom of the mechanical structure to be connected through screws 7. Then, the bolt 1 passes through the second gasket 12 and the first gasket 11, so that the bolt 1 can penetrate the mechanical structure to be connected. Then, the nut 15 and the bolt 1 are threadedly connected. After the connection is in place, only by connecting the first connecting block 10 and the second connecting block 14 with the first gasket 11 and the second gasket 12 through screws 7, the installation of the combined fastener is completed. When the combined fastener is vibrated, since the first gasket 11 and the second gasket 12 are connected to the mechanical structure, and the nut 15 and the nut 9 are connected to the first gasket 11 and the second gasket 12 through screws 7, loosening of the nut 15 or the bolt 1 caused by vibration can be avoided.

[0045] Compared with the related technology, the combined fastener provided by the present utility model has the following beneficial effects:

[0046] In order to prevent the combined fastener from loosening due to vibration when fixing a mechanical structure, two first connecting blocks 10 are installed on the outer surface of the nut 9 on the bolt 1. At the same time, two second connecting blocks 14 are also installed on the outer surface of the nut 15. The first connecting block 10 and the second connecting block 14 are connected to the first gasket 11 and the second gasket 12 through screws 7. Multiple limit measures can be used to prevent the connection between the bolt 1 and the nut 9 from loosening. Through this structure, the stability of the combined fastener when fixing the mechanical mechanism can be increased. At the same time, the detachable screws 7 can be used to prevent connection loosening, which is convenient for later disassembly and reduces the disassembly difficulty.

[0047] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A combined fastener, characterized in that, Including: Bolt; Nut, the nut is fixedly connected to the top end of the bolt, first connection blocks are fixedly connected to the opposite sides of the outer surface of the nut, screws are arranged on the tops of the first connection blocks, a second gasket is arranged at the bottom of the nut, and first connection pieces are fixedly connected to the opposite sides of the outer surface of the second gasket; Nut, the nut is threadedly connected to a position near the bottom end of the outer surface of the bolt, second connection blocks are fixedly connected to the opposite sides of the outer surface of the nut, a first gasket is arranged on the top of the nut, second connection pieces are fixedly connected to the opposite sides of the outer surface of the first gasket, and threaded holes are formed in a circle at one ends of the second gasket and the first gasket.

2. The combined fastener according to claim 1, characterized in that, Perforations penetrating through are formed in the tops of the first connection piece and the second connection piece, and a connecting rod is arranged at the bottom of one of the second connection pieces.

3. The combined fastener according to claim 1, characterized in that Placing grooves are formed in the adjacent ends of the first gasket and the second gasket, and rubber rings are arranged inside the placing grooves.

4. The combination fastener according to claim 1, wherein, Holes for the screws to pass through are formed in the first connection block and the second connection block, and an internal hexagon groove is formed in the top of the nut.

5. The combination fastener according to claim 1, wherein, Penetrating openings are formed in the tops of the first gasket and the second gasket.

6. The combined fastener according to claim 1, wherein Protective covers are arranged at the opposite ends of the first gasket and the second gasket, and fixing pieces are fixedly connected to the opposite sides of the outer surfaces of the protective covers.

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