Fastener capable of preventing looseness

Abstract

The invention discloses an anti-loosening fastener which comprises a first screwing end, a locking anti-skid gasket, a threaded column, a fixing nut and an auxiliary locking piece, the locking anti-skid gasket is fixedly connected to the bottom end of the first screwing end, and the threaded column is fixedly connected to the middle of the bottom end of the locking anti-skid gasket; the fixing nut is arranged on the threaded column in a threaded mode, the auxiliary locking piece is arranged at the bottom end of the threaded column, a conical extrusion groove and a threaded screwing groove are formed in the bottom end of the threaded column, and the threaded screwing groove is located below the conical extrusion groove. In the using process of the fastening piece, the auxiliary locking piece plays a role in assisting in locking, squeezing and stable adjustment, so that the fastening piece can be stable after being used for a long time, two parts can be firmly fastened even if the fastening piece is used in a vibrating environment, and the phenomenon of loosening is not prone to occurring in the using process.

Description

Technical Field

[0001] The invention relates to the technical field of fasteners, in particular to a fastener capable of preventing loosening. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening and connection and are extremely widely used. They are the general term for mechanical parts used to fasten two or more parts (or components) into a whole. They are mainly used to connect and fasten various parts to ensure the reliability, safety and durability of the connected parts. The existing bolt fasteners are very easy to loosen during use, especially when used in a vibrating environment, they are easy to loosen and fall off. Therefore, a fastener that prevents loosening is needed to solve the above-mentioned problems. Summary of the invention

[0003] The object of the present invention is to provide a fastener for preventing loosening, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fastener for preventing loosening, comprising a first screwing end, a locking anti-skid gasket, a threaded column, a fixing nut and an auxiliary locking component, wherein the locking anti-skid gasket is fixedly connected to the bottom end of the first screwing end, the threaded column is fixedly connected to the middle of the bottom end of the locking anti-skid gasket, the fixing nut is threadedly arranged on the threaded column, the auxiliary locking component is arranged at the bottom end of the threaded column, the bottom end of the threaded column is provided with a conical extrusion groove and a threaded screwing groove, and the threaded screwing groove is located below the conical extrusion groove, and deformation grooves are evenly opened at the bottom of the threaded column.

[0005] Preferably, a convex plate is evenly and fixedly mounted on the bottom end surface of the locking anti-slip gasket.

[0006] Preferably, the auxiliary locking member includes a second screwing end, a threaded fixing column and a squeezing ball, the threaded fixing column is fixedly connected to the middle part of the upper end of the second screwing end, and the squeezing ball is fixedly connected to the upper end of the threaded fixing column.

[0007] Preferably, an extrusion control spring is evenly and fixedly installed on the outer side of the upper end of the second screwing end head, and an extrusion limiting plate is fixedly connected to the upper end of the extrusion control spring.

[0008] Preferably, the threaded fixing column is threadably inserted into the interior of the threaded screwing groove, and the extrusion ball is extruded and inserted into the interior of the conical extrusion groove.

[0009] Preferably, the extrusion limiting plate is in extrusion contact with the bottom end surface of the fixing nut.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] During the use of the present invention, the auxiliary locking member is provided to play a role in auxiliary locking, squeezing and stabilizing adjustment, so that the fastener can be used stably for a long time. Even when used in a vibrating environment, the two components can be firmly fastened and are not prone to loosening during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the main three-dimensional structure of the present invention;

[0013] Figure 2 It is a schematic diagram of the side-view stereoscopic structure of the main body of the present invention;

[0014] Figure 3 It is a schematic diagram of the internal structure of the threaded column of the present invention;

[0015] Figure 4 It is a schematic diagram of the structure of the auxiliary locking member of the present invention.

[0016] In the figure: 1-first screwing end, 2-locking anti-slip gasket, 3-threaded column, 4-fixing nut, 5-auxiliary locking member, 6-convex plate, 7-conical extrusion groove, 8-threaded screwing groove, 9-deformation groove, 10-second screwing end, 11-extrusion control spring, 12-threaded fixing column, 13-extrusion ball, 14-extrusion limit plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figure 1-4 As shown, an embodiment of the present invention is: a fastener for preventing loosening, comprising a first screwing end 1, a locking anti-skid gasket 2, a threaded column 3, a fixing nut 4 and an auxiliary locking component 5, the locking anti-skid gasket 2 is fixedly connected to the bottom end of the first screwing end 1, the threaded column 3 is fixedly connected to the middle of the bottom end of the locking anti-skid gasket 2, the fixing nut 4 is threadedly arranged on the threaded column 3, the auxiliary locking component 5 is arranged at the bottom end of the threaded column 3, the bottom end of the threaded column 3 is provided with a conical extrusion groove 7 and a threaded screwing groove 8, and the threaded screwing groove 8 is located below the conical extrusion groove 7, and the bottom of the threaded column 3 is evenly provided with deformation grooves 9.

[0019] The bottom end surface of the locking anti-skid pad 2 is evenly and fixedly mounted with a convex plate 6 to play an anti-skid and stable role.

[0020] The auxiliary locking member 5 includes a second screwing end 10 , a threaded fixing column 12 and a squeezing ball 13 . The threaded fixing column 12 is fixedly connected to the middle of the upper end of the second screwing end 10 , and the squeezing ball 13 is fixedly connected to the upper end of the threaded fixing column 12 .

[0021] An extrusion control spring 11 is evenly and fixedly installed on the outer side of the upper end of the second screwing end 10, and an extrusion limit plate 14 is fixedly connected to the upper end of the extrusion control spring 11 to play a role in buffering extrusion and preventing loosening.

[0022] The threaded fixing column 12 is threadably inserted into the threaded screwing groove 8, and the extrusion ball 13 is extruded and inserted into the conical extrusion groove 7 to play the role of extrusion support.

[0023] The extrusion limiting plate 14 is in extrusion contact with the bottom end surface of the fixing nut 4, playing the role of extrusion support and barrier.

[0024] Working principle: After the threaded column 3 passes through the two workpieces, the fixing nut 4 is located at the bottom of the lower workpiece, and the fixing nut 4 is threadedly rotated onto the threaded column 3. At this time, the two workpieces can be fixedly connected, and the locking anti-skid gasket 2 set at the bottom of the first screwing end 1 and the convex plates 6 evenly distributed at the bottom of the locking anti-skid gasket 2 play a role in assisting extrusion to increase friction and prevent displacement loosening. When the anti-loosening level of this fastener is required to be high, after the parts are fixed with this fastener, the second screwing end 10 is screwed by a tool so that the threaded fixing column 12 is inserted into the inside of the thread screwing groove 8, and the extrusion ball 13 is inserted into the interior of the conical extrusion groove 7, and the bottom support of the threaded column 3 is opened and expanded outward by means of the set deformation groove 9, and at this time, the outwardly opened part of the threaded column 3 is located at the bottom end of the fixing nut 4, which fully blocks and limits the fixing nut 4 and does not rotate or displace, and at this time, the extrusion control spring 11 is extruded to make the extrusion limit plate 14 squeeze the bottom end of the fixing nut 4, so that the fixing nut 4 is not easy to displace and loosen even if the fixing part is fixed in a vibrating environment during use, and the fixing nut 4 plays a role of component locking and fixing, so that the fixing part can be used stably for a long time and is not easy to loosen.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fastener for preventing loosening, comprising a first screwing end (1), a locking anti-slip gasket (2), a threaded column (3), a fixing nut (4) and an auxiliary locking member (5), characterized in that: The locking anti-skid gasket (2) is fixedly connected to the bottom end of the first screwing end (1), the threaded column (3) is fixedly connected to the middle part of the bottom end of the locking anti-skid gasket (2), the fixing nut (4) is threadedly arranged on the threaded column (3), the auxiliary locking member (5) is arranged at the bottom end of the threaded column (3), the bottom end of the threaded column (3) is provided with a conical extrusion groove (7) and a thread screwing groove (8), and the thread screwing groove (8) is located below the conical extrusion groove (7), and the bottom of the threaded column (3) is evenly provided with deformation grooves (9).

2. A fastener for preventing loosening according to claim 1, characterized in that: The bottom end surface of the locking anti-skid gasket (2) is evenly and fixedly mounted with a convex plate (6).

3. A fastener for preventing loosening according to claim 2, characterized in that: The auxiliary locking member (5) comprises a second screwing end (10), a threaded fixing column (12) and a squeezing ball (13); the threaded fixing column (12) is fixedly connected to the middle part of the upper end of the second screwing end (10); and the squeezing ball (13) is fixedly connected to the upper end of the threaded fixing column (12).

4. A fastener for preventing loosening according to claim 3, characterized in that: An extrusion control spring (11) is evenly and fixedly mounted on the outer side of the upper end of the second screwing end (10), and an extrusion limit plate (14) is fixedly connected to the upper end of the extrusion control spring (11).

5. A fastener for preventing loosening according to claim 4, characterized in that: The threaded fixing column (12) is threadably inserted into the interior of the threaded screwing groove (8), and the extrusion ball (13) is extruded and inserted into the interior of the conical extrusion groove (7).

6. A fastener for preventing loosening according to claim 5, characterized in that: The extrusion limiting plate (14) is in extrusion contact with the bottom end surface of the fixing nut (4).

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