Shock-resistant locknut

Abstract

The utility model discloses an anti-impact locknut which comprises an upper nut block, a lower nut block and a nylon rubber ring. A first threaded hole is formed in the upper nut block, and an inner hexagonal cavity is formed in the bottom of the upper nut block; the lower nut block is provided with a second threaded hole, the top of the lower nut block is fixedly connected with a hexagonal protruding block connected with the inner hexagonal cavity in a matched mode, the hexagonal protruding block is provided with a round hole, and the nylon rubber ring is installed in the round hole. According to the impact-resistant locknut, under the interaction of the upper nut block, the lower nut block and the nylon rubber ring, when a bolt and the nut are locked, the nylon rubber ring can be cut open by threads of the bolt, and the anti-loosening effect is achieved through the interaction of the pressing force of extrusion of the nylon rubber ring and the resistance of a cut opening; and meanwhile, the upper nut block and the lower nut block can be separated, the used nylon rubber ring can be replaced conveniently, and convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to an impact-resistant and loosening-preventing nut. Background Technique

[0002] Threaded connections are used in all walks of life of construction machinery. Threaded fasteners such as bolts, stud bolts, screws, nuts and washers are used in the connection of heavy machinery and the assembly of light components. Commonly used threaded fasteners are bolts, stud bolts, screws, nuts and washers, etc. Threaded connections are essential in all aspects of production and life. The reason why threaded connections are widely used is that they have a series of advantages: easy to assemble and disassemble, no need for large equipment, large connection force and can be reused. However, precisely because threaded fasteners are easy to disassemble, they have an inevitable weakness: they are prone to looseness under the action of impact, vibration or variable load, resulting in equipment damage and even accidents. Therefore, the reliability of threaded connections directly affects the normal operation of machinery and equipment, and effective anti-loosening measures need to be taken for threaded fasteners. The existing anti-loosening nuts have poor locking or self-locking effects, and are still prone to looseness when in a vibrating working environment, failing to achieve the anti-loosening effect.

[0003] Based on the above situation, the utility model proposes an impact-resistant and loosening-preventing nut, which can effectively solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an impact-resistant and loosening-preventing nut. An impact-resistant and loosening-preventing nut provided by the utility model, through the interaction of the upper nut block, the lower nut block and the nylon rubber ring, when the bolt is locked with the nut of the present application, the nylon rubber ring will be cut by the thread of the bolt, and through the interaction of the pressing force of the extrusion of the nylon rubber ring and the resistance of the cut opening, the anti-loosening effect is achieved; at the same time, the upper nut block and the lower nut block can be separated, which is convenient for replacing the used nylon rubber ring, increasing the convenience.

[0005] The utility model is realized through the following technical solutions:

[0006] An impact-resistant and loosening-preventing nut, comprising an upper nut block, a lower nut block and a nylon rubber ring; the upper nut block is provided with a first threaded hole, and the bottom of the upper nut block is provided with an internal hexagonal cavity; the lower nut block is provided with a second threaded hole, and the top of the lower nut block is fixedly connected with a hexagonal convex block that is cooperatively connected with the internal hexagonal cavity, and the hexagonal convex block is provided with a circular hole, and the nylon rubber ring is installed in the circular hole.

[0007] According to the above technical solution, as a further preferred technical solution of the above technical solution, a plurality of connection holes are opened at the bottom of the internal hexagonal cavity.

[0008] According to the above technical solution, as a further preferred technical solution of the above technical solution, a plurality of connecting columns that are matched and inserted with the connecting holes are fixedly connected to the top of the hexagonal bump.

[0009] According to the above technical solution, as a further preferred technical solution of the above technical solution, the diameter of the circular hole is larger than the diameter of the second threaded hole.

[0010] According to the above technical solution, as a further preferred technical solution of the above technical solution, the inner diameter of the nylon rubber ring is equal to the minor diameter of the second threaded hole.

[0011] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0012] An impact-resistant and anti-loosening nut provided by the present invention, through the interaction of the upper nut block, the lower nut block and the nylon rubber ring, when the bolt is locked with the nut of the present application, the nylon rubber ring will be cut by the thread of the bolt, and through the interaction of the compressive force of the nylon rubber ring extrusion and the resistance of the cut opening, the anti-loosening effect is achieved; at the same time, the upper nut block and the lower nut block can be separated, which is convenient for replacing the used nylon rubber ring and increases the convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 is an exploded view of the present invention;

[0015] Figure 3 is a schematic diagram of the structure of the upper nut block of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following describes the preferred implementation solutions of the present invention in conjunction with specific embodiments. However, it should be understood that the drawings are only for illustrative purposes and cannot be construed as a limitation to this patent; for better illustration of this embodiment, some components in the drawings will be omitted, enlarged or reduced, and do not represent the actual size of the product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as a limitation to this patent.

[0017] An impact-resistant and anti-loosening nut, comprising an upper nut block 1, a lower nut block 2 and a nylon rubber ring 3; the upper nut block 1 is provided with a first threaded hole 11, and the bottom of the upper nut block 1 is provided with an internal hexagonal cavity 12; the lower nut block 2 is provided with a second threaded hole 21, the top of the lower nut block 2 is fixedly connected with a hexagonal convex block 22 that is cooperatively connected with the internal hexagonal cavity 12, and the hexagonal convex block 22 is provided with a circular hole 23, and the nylon rubber ring 3 is installed in the circular hole 23.

[0018] Through the interaction of the upper nut block 1, the lower nut block 2 and the nylon rubber ring 3 of the present utility model, when the bolt is locked with the nut of the present application, the nylon rubber ring 3 will be cut by the thread of the bolt. Through the interaction of the pressing force of the extrusion of the nylon rubber ring 3 and the resistance of the cut opening, the anti-loosening effect is achieved; at the same time, the upper nut block 1 and the lower nut block 2 can be separated, which is convenient for replacing the used nylon rubber ring 3, increasing the convenience.

[0019] Furthermore, in another embodiment, a plurality of connecting holes 13 are provided at the bottom of the internal hexagonal cavity 12. The top of the hexagonal convex block 22 is fixedly connected with a plurality of connecting columns 24 that are cooperatively inserted into the connecting holes 13. Through the cooperative insertion of the plurality of connecting columns at the top of the hexagonal convex block and the connecting holes, the connection stability between the upper nut block 1 and the lower nut block 2 is increased.

[0020] Furthermore, in another embodiment, the diameter of the circular hole 23 is larger than the diameter of the second threaded hole 21. The inner diameter of the nylon rubber ring 3 is equal to the minor diameter of the second threaded hole 21. The nylon rubber ring 3 is tightly fitted with the thread of the bolt, improving the tightness and enhancing the anti-loosening performance.

[0021] Based on the description and drawings of the present utility model, those skilled in the art can easily manufacture or use an impact-resistant and anti-loosening nut of the present utility model and can produce the positive effects recorded in the present utility model.

[0022] Unless otherwise specified, in the present utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present utility model are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood in combination with the drawings and according to specific circumstances.

[0023] Unless otherwise clearly defined and limited, in this utility model, if there are terms such as "set", "connected" and "connected", they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific situations.

[0024] The above are only the preferred embodiments of this utility model, and do not impose any formal restrictions on this utility model. Any simple modifications and equivalent changes made to the above embodiments based on the technical essence of this utility model all fall within the protection scope of this utility model.

Claims

1. An impact-resistant and anti-loosening nut, characterized in that: It includes an upper nut block (1), a lower nut block (2) and a nylon rubber ring (3); the upper nut block (1) is provided with a first threaded hole (11), and the bottom of the upper nut block (1) is provided with an internal hexagonal cavity (12); the lower nut block (2) is provided with a second threaded hole (21), the top of the lower nut block (2) is fixedly connected with a hexagonal convex block (22) that is cooperatively connected with the internal hexagonal cavity (12), and the hexagonal convex block (22) is provided with a circular hole (23), and the nylon rubber ring (3) is installed in the circular hole (23).

2. The impact-resistant and anti-loosening nut according to claim 1, wherein: A plurality of connection holes (13) are provided at the bottom of the internal hexagonal cavity (12).

3. The impact-resistant and anti-loosening nut according to claim 2, wherein: A plurality of connection columns (24) that are cooperatively inserted into the connection holes (13) are fixedly connected to the top of the hexagonal convex block (22).

4. The impact-resistant and anti-loosening nut according to claim 1, wherein: The diameter of the circular hole (23) is larger than the diameter of the second threaded hole (21).

5. The impact-resistant and anti-loosening nut according to claim 1, characterized in that: The inner diameter of the nylon rubber ring (3) is equal to the minor diameter of the second threaded hole (21).

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