Anti-loose fastener

Abstract

The utility model discloses an anti-loose fastener, including bolt, strengthening subassembly, protection subassembly and spacing subassembly, strengthening subassembly is provided below the bolt, protection subassembly is provided outside bolt, spacing subassembly is provided in the bolt, is provided with torsion spring, torsion spring one end is fixedly connected with spacing plate, and the spacing plate one end is fixedly connected with the bolt. The other end of the torsion spring is fixedly connected with the telescopic rod, the two ends of the third spring are fixedly connected with the connecting plate, after the nut is installed, the length of the telescopic rod is adjusted according to the locking position of the nut, the limiting plate is limited through the elastic force of the torsion spring, and the limiting plate cannot deviate when limiting the nut; and meanwhile, the nut is further limited through the elastic force of a third spring, a first spring jacks up a button, a pressing block and a reinforcing block are separated, meanwhile, a second spring resets the reinforcing block, the bolt and equipment are reinforced, and the problem that an existing nut is prone to loosening is solved.

Description

Technical Field

[0001] The utility model relates to the technology of fasteners. Specifically, it relates to a loosening-proof fastener. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening connections and are extremely widely applied. Fasteners are used in a wide range of industries, including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, molds, hydraulics, etc. All kinds of fasteners can be seen on various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, meters and supplies, etc. They are the most widely used basic mechanical parts.

[0003] In the process of using existing fasteners, screws and nuts are usually used in combination. During the use of the equipment itself, vibrations will occur. When the vibration frequency matches that of the bolt, the nut will loosen, resulting in a weakened fixing function, reduced service life of the equipment, and potential safety hazards.

[0004] Regarding the problems in the related art, no effective solutions have been proposed yet. Content of the Utility Model

[0005] Regarding the problems in the related art, the utility model proposes a loosening-proof fastener to overcome the above-mentioned technical problems existing in the related art.

[0006] Therefore, the specific technical solution adopted by the utility model is as follows:

[0007] A loosening-proof fastener includes a bolt, a reinforcement component, a protection component, and a limiting component. The reinforcement component is arranged below the bolt, the protection component is arranged outside the bolt, and the limiting component is arranged inside the bolt.

[0008] The utility model further explains that the limiting component includes a telescopic rod, a connecting plate, a third spring, a limiting plate, and a torsion spring. The telescopic rod is arranged inside the bolt, the connecting plate is arranged below the telescopic rod, the third spring is arranged below the connecting plate, both ends of the third spring are fixedly connected to the two groups of connecting plates, the limiting plate is arranged on both sides of the telescopic rod, one end of the torsion spring is fixedly connected to the limiting plate, and the other end of the torsion spring is fixedly connected to the telescopic rod.

[0009] The present utility model is further described as follows: The reinforcement component includes a housing, a button, a first spring, a pressing block, a second spring, and a reinforcement block. The housing is arranged below the bolt. An opening is provided on one side of the housing. The button is arranged at the opening on one side of the housing. One end of the first spring is fixedly connected to the button, and the other end of the first spring is fixedly connected to the bolt. The pressing block is arranged on one side of the button, the reinforcement block is arranged on one side of the pressing block, and the second spring is arranged on one side of the reinforcement block.

[0010] The present utility model is further described as follows: The protection component includes a left arc plate, a right arc plate, a fixing plate, and a locking rod. The left arc plate is arranged on the bolt, the right arc plate is arranged on one side of the left arc plate, the fixing plate is arranged on the outer surfaces of the left arc plate and the right arc plate, and the locking rod is arranged on the fixing plate.

[0011] The present utility model is further described as follows: One side of the left arc plate is rotatably connected to the bolt through a rotating shaft. The fixing plate is of a U-shaped structure. The locking rod is rotatably connected to a set of the fixing plates. The locking rod consists of a dial rod and a threaded rod assembly.

[0012] The present utility model is further described as follows: A fixing ring is arranged on the outer surface of the bolt. An opening adapted to the bolt is provided on the housing. A groove is provided on the bolt. The limiting component is arranged in the groove on the bolt.

[0013] The present utility model is further described as follows: An activity groove is provided on the reinforcement block and is adapted to the pressing block. The pressing block is arranged in the activity groove of the reinforcement block.

[0014] The present utility model is further described as follows: Partition plates are arranged on both sides of the first spring. One end of the second spring is fixedly connected to the reinforcement block, and the other end of the second spring is fixedly connected to the partition plate.

[0015] The beneficial effect of the present utility model is as follows: By providing a torsion spring, one end of the torsion spring is fixedly connected to the limiting plate, the other end of the torsion spring is fixedly connected to the telescopic rod, both ends of the third spring are fixedly connected to the connecting plate, and above a set of connecting plates is fixedly connected to the telescopic rod. After installing the nut, according to the locking position of the nut, the length of the telescopic rod is adjusted. The limiting plate is limited by the elastic force of the torsion spring, so that the limiting plate will not shift when limiting the nut. At the same time, the elastic force of the third spring further limits the nut.

[0016] By providing a pressing block which is arranged on one side of the button, and a groove adapted to the pressing block is provided on the reinforcing block. One side of the reinforcing block is fixedly connected to one end of the second spring, and the other end of the second spring is fixedly connected to the first spring through a partition plate. After the bolt is installed, by releasing the button, the first spring jacks up the button to separate the pressing block from the reinforcing block, and at the same time, the second spring resets the reinforcing block to reinforce the connection between the bolt and the device. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is the overall structural schematic diagram of a loosening prevention fastener according to an embodiment of the present invention;

[0019] Figure 2 is the telescopic unfolding structural schematic diagram of a loosening prevention fastener according to an embodiment of the present invention;

[0020] Figure 3 is the structural schematic diagram of a limiting component in a loosening prevention fastener according to an embodiment of the present invention;

[0021] Figure 4 is the structural schematic diagram of a reinforcing component in a loosening prevention fastener according to an embodiment of the present invention;

[0022] Figure 5 is a loosening prevention fastener according to an embodiment of the present invention Figure 1 magnified structural schematic diagram at A in it.

[0023] In the figure:

[0024] 1, bolt; 11, fixing ring; 2, reinforcing component; 21, housing; 22, button; 23, first spring; 24, pressing block; 25, second spring; 26, reinforcing block; 3, protection component; 31, left arc plate; 32, right arc plate; 33, fixing plate; 34, locking rod; 4, limiting component; 41, telescopic rod; 42, connecting plate; 43, third spring; 44, limiting plate; 45, torsion spring. Detailed Embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all 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.

[0026] According to an embodiment of the present invention, a loosening-preventing fastener is provided.

[0027] As Figures 1-5 shown, the loosening-preventing fastener according to the embodiment of the present invention includes a bolt 1, a reinforcement assembly 2, a protection assembly 3, and a limit assembly 4. The reinforcement assembly 2 is arranged below the bolt 1, the protection assembly 3 is arranged outside the bolt 1, and the limit assembly 4 is arranged inside the bolt 1;

[0028] The limit assembly 4 includes a telescopic rod 41, a connecting plate 42, a third spring 43, a limit plate 44, and a torsion spring 45. The telescopic rod 41 is arranged inside the bolt 1, the connecting plate 42 is arranged below the telescopic rod 41, the third spring 43 is arranged below the connecting plate 42, and both ends of the third spring 43 are fixedly connected to two groups of connecting plates 42. The limit plate 44 is arranged on both sides of the telescopic rod 41. One end of the torsion spring 45 is fixedly connected to the limit plate 44, and the other end of the torsion spring 45 is fixedly connected to the telescopic rod 41. One end of the torsion spring 45 is fixedly connected to the limit plate 44, and the other end of the torsion spring 45 is fixedly connected to the telescopic rod 41. Both ends of the third spring 43 are fixedly connected to the connecting plate 42. The upper part of one group of connecting plates 42 is fixedly connected to the telescopic rod 41. After installing the nut, according to the locking position of the nut, the length of the telescopic rod 41 is adjusted. The limit plate 44 is limited by the elastic force of the torsion spring 45, so that the limit plate 44 will not shift when limiting the nut. At the same time, the elastic force of the third spring 43 further limits the nut;

[0029] The reinforcement component 2 includes a housing 21, a button 22, a first spring 23, a pressing block 24, a second spring 25 and a reinforcement block 26. The housing 21 is arranged below the bolt 1. An opening is provided on one side of the housing 21. The button 22 is arranged at the opening on one side of the housing 21. One end of the first spring 23 is fixedly connected to the button 22, and the other end of the first spring 23 is fixedly connected to the bolt 1. The pressing block 24 is arranged on one side of the button 22. The reinforcement block 26 is arranged on one side of the pressing block 24. The second spring 25 is arranged on one side of the reinforcement block 26. The pressing block 24 is arranged on one side of the button 22. A groove adapted to the pressing block 24 is provided on the reinforcement block 26. One side of the reinforcement block 26 is fixedly connected to one end of the second spring 25, and the other end of the second spring 25 is fixedly connected to the first spring 23 through a partition. After the bolt 1 is installed, by releasing the button 22, the first spring 23 jacks up the button 22 to separate the pressing block 24 from the reinforcement block 26. At the same time, the second spring 25 resets the reinforcement block 26 to reinforce between the bolt 1 and the device;

[0030] The protection component 3 includes a left arc plate 31, a right arc plate 32, a fixing plate 33 and a locking rod 34. The left arc plate 31 is arranged on the bolt 1. The right arc plate 32 is arranged on one side of the left arc plate 31. The fixing plate 33 is arranged on the outer surfaces of the left arc plate 31 and the right arc plate 32. The locking rod 34 is arranged on the fixing plate 33;

[0031] A fixing ring 11 is arranged on the outer surface of the bolt 1. An opening adapted to the bolt 1 is provided on the housing 21. A groove is provided on the bolt 1. The limiting component 4 is arranged in the groove on the bolt 1. A movable groove is provided on the reinforcement block 26 and is adapted to the pressing block 24. The pressing block 24 is arranged on the movable groove of the reinforcement block 26.

[0032] In order to facilitate the understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in the actual process will be described in detail below.

[0033] In practical applications, one end of the torsion spring 45 is fixedly connected to the limit plate 44, the other end of the torsion spring 45 is fixedly connected to the telescopic rod 41, both ends of the third spring 43 are fixedly connected to the connecting plate 42, and the upper part of a group of connecting plates 42 is fixedly connected to the telescopic rod 41. After installing the nut, according to the locking position of the nut, the length of the telescopic rod 41 is adjusted. The limit plate 44 is limited by the elastic force of the torsion spring 45, so that the limit plate 44 will not shift when limiting the nut. At the same time, the elastic force of the third spring 43 further limits the nut. The pressing block 24 is arranged on one side of the button 22. The reinforcing block 26 is provided with a groove adapted to the pressing block 24. One side of the reinforcing block 26 is fixedly connected to one end of the second spring 25, and the other end of the second spring 25 is fixedly connected to the first spring 23 through a partition plate. After installing the bolt 1, by loosening the button 22, the first spring 23 jacks up the button 22, so that the pressing block 24 is separated from the reinforcing block 26. At the same time, the second spring 25 resets the reinforcing block 26, so as to reinforce the connection between the bolt 1 and the device.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-loosening fastener, characterized in that: The invention comprises a bolt (1), a reinforcement component (2), a protection component (3) and a limit component (4), wherein the reinforcement component (2) is arranged below the bolt (1), the protection component (3) is arranged outside the bolt (1), the limit component (4) is arranged inside the bolt (1), and the limit component (4) comprises a telescopic rod (41), a connecting plate (42), a third spring (43), a limit plate (44) and a torsion spring (45), wherein the telescopic rod (41) is arranged inside the bolt (1), the connecting plate (42) is arranged below the telescopic rod (41), the third spring (43) is arranged below the connecting plate (42), the two ends of the third spring (43) are fixedly connected to the two groups of connecting plates (42), the limit plate (44) is arranged on both sides of the telescopic rod (41), and the torsion spring (45) is arranged at the bottom of the telescopic rod (41). One end of the torsion spring (45) is fixedly connected to the limit plate (44), and the other end of the torsion spring (45) is fixedly connected to the telescopic rod (41). The reinforcement assembly (2) comprises a housing (21), a button (22), a first spring (23), a pressure block (24), a second spring (25) and a reinforcement block (26). The housing (21) is arranged below the bolt (1), one side of the housing (21) is provided with an opening, and the button (22) is arranged at the opening on one side of the housing (21). One end of the first spring (23) is fixedly connected to the button (22), and the other end of the first spring (23) is fixedly connected to the bolt (1). The pressure block (24) is arranged on one side of the button (22), the reinforcement block (26) is arranged on one side of the pressure block (24), and the second spring (25) is arranged on one side of the reinforcement block (26).

2. The anti-loosening fastener according to claim 1, characterized in that: The protection assembly (3) comprises a left arc-shaped plate (31), a right arc-shaped plate (32), a fixing plate (33) and a locking rod (34); the left arc-shaped plate (31) is arranged on the bolt (1); the right arc-shaped plate (32) is arranged on one side of the left arc-shaped plate (31); the fixing plate (33) is arranged on the outer surfaces of the left arc-shaped plate (31) and the right arc-shaped plate (32); and the locking rod (34) is arranged on the fixing plate (33).

3. The anti-loosening fastener according to claim 2, characterized in that: One side of the left arc-shaped plate (31) is rotatably connected to the bolt (1) via a rotating shaft; the fixing plate (33) is a U-shaped structure; the locking rod (34) is rotatably connected to a group of the fixing plates (33); the locking rod (34) is composed of a lever and a threaded rod assembly.

4. The anti-loosening fastener according to claim 3, characterized in that: The outer surface of the bolt (1) is provided with a fixing ring (11), the outer shell (21) is provided with an opening adapted to fit the bolt (1), the bolt (1) is provided with a groove, and the limiting assembly (4) is arranged in the groove on the bolt (1).

5. The anti-loosening fastener according to claim 4, characterized in that: The reinforcing block (26) is provided with a movable groove, and is mutually adapted with the pressing block (24); the pressing block (24) is arranged on the movable groove of the reinforcing block (26).

6. The anti-loosening fastener according to claim 5, characterized in that: Partition plates are provided on both sides of the first spring (23); one end of the second spring (25) is fixedly connected to the reinforcement block (26); and the other end of the second spring (25) is fixedly connected to the partition plate.

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