Lock nut

Abstract

The locknut comprises a high-strength nut and a double-laminated gasket, a bolt hole is formed in the high-strength nut, the double-laminated gasket and the high-strength nut are coaxially arranged, the double-laminated gasket is arranged between a workpiece and the high-strength nut, and the high-strength nut is matched with a high-strength bolt on the outer side of the workpiece. The double-lap gasket comprises a first gasket and a second gasket, meshing teeth matched with each other are arranged on the opposite sides of the first gasket and the second gasket respectively, and the first gasket and the second gasket are meshed through the meshing teeth. When the locknut is used, interlocking and fastening matching can be achieved, looseness caused by vibration is avoided, and the connection requirement for lasting fastening is met.

Description

Technical Field

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

[0002] In modern mechanical assembly, nuts are common fasteners, widely used in the assembly and connection of equipment in multiple industries; but due to frequent impact and vibration during work, nuts will loosen or even fall off, causing major safety hazards.

[0003] A Chinese utility model patent with announcement number CN217603140U discloses an anti-loosening nut, including a nut body, a wire thread sleeve arranged in the nut body, an anti-loosening washer connected to one end of the nut body, the anti-loosening washer including a first washer and a second washer, the first washer is arranged on a side close to the nut body, the second washer is arranged on a side away from the nut body, the first washer and the second washer are bonded by adhesive; the problem of loosening of the bolt assembly in a vibration environment can be effectively solved.

[0004] The above-mentioned anti-loosening nut is also provided with a first washer and a second washer, but the first washer and the second washer cooperate independently, and the washer and the nut are only in abutment. During use, the anti-loosening effect is not good only by thread extrusion, and it cannot meet the long-term continuous tightening requirements, and the use effect is not ideal. Utility Model Content

[0005] The utility model aims to solve the above-mentioned problem and provide a locking nut which has an interlocking fastening fit, avoids loosening due to vibration and meets the requirements of a durable and fastened connection.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: a kind of anti-loosening nut, including a high-strength nut and a double-stacked washer, the high-strength nut is provided with a bolt hole, the double-stacked washer is coaxially arranged with the high-strength nut, the double-stacked washer is arranged between the workpiece and the high-strength nut, and the high-strength nut cooperates with the high-strength bolt on the outside of the workpiece.

[0007] Preferably, the double-stacked washer comprises a first washer and a second washer, and the opposite sides of the first washer and the second washer are respectively provided with meshing teeth that match each other, and the first washer and the second washer are meshed through the meshing teeth.

[0008] Preferably, the high-strength nut is provided with a snap ring on a side close to the second washer, and the high-strength bolt is rotatably connected to the second washer via the snap ring.

[0009] Preferably, ridges are respectively provided on the outer sides of the first washer and the second washer, the ridges on the outer side of the first washer are in contact with the workpiece, and the ridges on the outer side of the second washer are in contact with the high-strength nut.

[0010] The utility model discloses a kind of anti-loosening nut, comprising a high-strength nut and a double-stacked washer, wherein a bolt hole is arranged in the high-strength nut, the double-stacked washer is coaxially arranged with the high-strength nut, the double-stacked washer is arranged between a workpiece and the high-strength nut, the high-strength nut cooperates with the high-strength bolt on the outside of the workpiece, the double-stacked washer comprises a first washer and a second washer, the opposite sides of the first washer and the second washer are respectively provided with mutually cooperating meshing teeth, the first washer and the second washer are engaged with each other through the meshing teeth; compared with the prior art, the anti-loosening nut has the beneficial effect of interlocking and tightening when in use, avoiding loosening due to vibration, and meeting the demand for durable and tight connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a schematic diagram of the assembly structure of the anti-loosening nut.

[0012] Figure 2 The structure diagram of the anti-loosening nut of the utility model is shown in FIG. Figure 1 .

[0013] Figure 3 The structure diagram of the anti-loosening nut of the utility model is shown in FIG. Figure 2 .

[0014] Figure 4 The figure is a schematic diagram of the internal structure of the anti-loosening nut of the utility model.

[0015] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0016] In the figure: 1, high-strength bolt; 2, workpiece; 3, double-stacked washer; 31, first washer; 32, second washer; 33, meshing teeth; 34, ridge; 4, high-strength nut; 41, bolt hole; 42, retaining ring. DETAILED DESCRIPTION

[0017] The utility model is now described in further detail in conjunction with the accompanying drawings. The accompanying drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0018] Please refer to Figure 1-5 A locking nut comprises a high-strength nut 4 and a double-stacked washer 3, wherein a bolt hole 41 is arranged inside the high-strength nut 4, the double-stacked washer 3 is coaxially arranged with the high-strength nut 4, the double-stacked washer 3 is arranged between a workpiece 2 and the high-strength nut 4, and the high-strength nut 4 cooperates with a high-strength bolt 1 on the outside of the workpiece 2.

[0019] Specifically, the double-stacked washer 3 includes a first washer 31 and a second washer 32. The opposite sides of the first washer 31 and the second washer 32 are respectively provided with mutually matching meshing teeth 33. The first washer 31 and the second washer 32 are engaged with each other through the meshing teeth 33. At this time, when the first washer 31 and the second washer 32 are engaged, they are locked with each other to prevent loosening.

[0020] After the double stacked washers are engaged with each other through the meshing teeth 33, they can also bear greater pressure and shear force and are not easily deformed or damaged.

[0021] In addition, the high-strength nut 4 is provided with a snap ring 42 on one side close to the second washer 32 , and the high-strength nut 4 is rotatably connected to the second washer 32 via the snap ring 42 .

[0022] That is to say, the first washer 31 is independent and cooperates with the second washer 32, and the second washer 32 cooperates with the high-strength nut 4 through the retaining ring 42. After the second washer 32 and the high-strength nut 4 cooperate, they can also rotate separately; when in use, after being combined and installed with the high-strength bolt 1, the high-strength nut 4 will squeeze the first washer and the second washer so that they are embedded in the workpiece and the high-strength nut to achieve bite, thereby further improving the anti-loosening effect.

[0023] Furthermore, ridges 34 are respectively provided on the outer sides of the first washer 31 and the second washer 32. The ridges 34 on the outer side of the first washer 31 are in contact with the workpiece 2, and the ridges 34 on the outer side of the second washer 32 are in contact with the high-strength nut 4. After being installed with the high-strength bolt during use, the continuous rotation of the high-strength nut can further increase the contact tightness between the high-strength nut 4 and the second washer 32. At the same time, the friction between the first washer and the workpiece can be increased, and the ridges on both sides can promote the tight connection to avoid loosening caused by vibration.

[0024] The novel anti-loosening nut is formed into an integrated structure by cooperating the first washer 31 with the second washer 32 and the second washer 32 with the high-strength nut 4. The washers bite to prevent loosening and the ridges on both sides also increase the connection tightness.

[0025] The design principle of the double-stacked washer 3 in this embodiment is based on the principles of friction and mechanical interlocking. This design consists of two washers stacked together, which can lock each other to prevent loosening. In addition, since the meshing teeth and ridges can withstand greater pressure and shear force, they are not easily deformed or damaged, thereby improving the stability and reliability of the equipment. When tightened, these teeth clamp the bolt or thread like a vice, and when the nut is tightened onto the bolt or screw, the two washers begin to compress under pressure, and this compression causes friction between them; ensuring that the double-layer self-locking washer can maintain its grip and prevent the fastener from loosening even in a high vibration environment or repeated use over time.

[0026] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A locking nut, characterized in that: It includes a high-strength nut and a double-stacked washer. The high-strength nut is provided with a bolt hole. The double-stacked washer is coaxially arranged with the high-strength nut. The double-stacked washer is arranged between the workpiece and the high-strength nut. The high-strength nut cooperates with the high-strength bolt on the outside of the workpiece.

2. The anti-loosening nut according to claim 1, characterized in that: The double-stacked washer comprises a first washer and a second washer, and the opposite sides of the first washer and the second washer are respectively provided with meshing teeth that match each other, and the first washer and the second washer are meshed through the meshing teeth.

3. The anti-loosening nut according to claim 2, characterized in that: The high-strength nut is provided with a clamping ring on one side close to the second washer, and the high-strength bolt is rotatably connected to the second washer through the clamping ring.

4. The anti-loosening nut according to claim 2, characterized in that: The first washer and the second washer are respectively provided with ridges on their outer sides. The ridges on the outer side of the first washer are in contact with the workpiece, and the ridges on the outer side of the second washer are in contact with the high-strength nut.

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