Lightweight locknut

Abstract

The utility model discloses a light-weight locknut which comprises a body, the body is of a cylinder structure, a threaded hole is formed in the center of the body, a gasket is arranged at the bottom of the body, a plurality of ridges are distributed on the periphery of the body, every two adjacent ridges are in transition connection through a cambered surface, the cambered surface is sunken towards the axis of the cylinder, and spiralock threads are distributed in the threaded hole. The anti-loosening nut is reasonable and ingenious in structural design, the main body structure composed of the ridges and the arc faces is utilized, the material amount used by the body is reduced, the dead weight of the nut is reduced, meanwhile, the spiralock threads can achieve the anti-loosening effect, and the anti-loosening performance is further enhanced due to the fact that the dead weight is reduced.

Description

Technical Field

[0001] This utility model relates to a lightweight anti-loosening nut, belonging to the field of fastener technology. Background Technology

[0002] Austenitic stainless steel nuts are used in nut manufacturing due to their excellent corrosion resistance. A typical nut structure consists of a ring-shaped stainless steel ring with internal threads, which tightens by engaging with the bolt threads. However, because austenitic stainless steel has low hardness, and the tightening force distribution between standard threads is very uneven, stainless steel nuts are prone to splitting, causing structural loosening. Furthermore, standard threads are susceptible to loosening under frequent vibration and large temperature differences, affecting the stability of the fastener connection. Therefore, a nut with high structural strength and anti-loosening properties is needed. If the nut itself is heavy, the vibration generated by prolonged equipment operation under gravity can also make it more prone to loosening. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, this utility model provides a lightweight anti-loosening nut, which improves the anti-loosening effect and reduces the overall weight.

[0004] To achieve this objective, the structure adopted in this utility model is as follows: a lightweight anti-loosening nut, including a body, which is a cylindrical structure with a threaded hole in the center and a washer at the bottom. Multiple ridges are arranged around the body, and adjacent ridges are connected by an arc surface transition. The arc surface is recessed into the axis of the body, and the threaded hole is filled with Specle threads.

[0005] The width of the arc surface near the gasket is smaller than that of the other end.

[0006] The depth of the arc surface near the gasket is less than that of the other end.

[0007] The top of each ridge is sloping, with the end of the sloping surface near the threaded hole positioned horizontally higher than the other end.

[0008] The Spiral thread includes protruding teeth arranged in a spiral pattern. The outer side of the teeth is connected to the body, and the inner side is flat. A first inclined surface is provided on one side of the teeth, and the first inclined surface is connected to a second inclined surface. The extension lines of the first inclined surface and the second inclined surface form a 30° angle. A third inclined surface is provided on the other side of the teeth, and the third inclined surface forms a 90° angle with the second inclined surface of the lower teeth.

[0009] The connection between the gasket and the body is an inclined slope.

[0010] The gasket has an annular groove around the threaded hole on the side away from the body. The outer diameter of the annular groove is less than or equal to the outer diameter of the circle formed by the ridge. The annular groove is recessed towards the body, and the distance between the deepest part of the recess and the surface of the gasket is 3-5 mm.

[0011] Its beneficial effects are: the structure of this utility model is reasonable and ingenious. The main structure composed of ridge and arc surface reduces the amount of material used in the body and reduces the weight of the nut. At the same time, the threaded part can play an anti-loosening role. In addition, the weight reduction further enhances the anti-loosening performance. Attached Figure Description

[0012] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a cross-sectional view of the present invention;

[0015] Figure 3 This is a partial enlarged view of the present invention. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0017] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components; a fixed connection can be welding or adhesive bonding. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] like Figure 1 , Figure 2The lightweight lock nut shown includes a body 2, which is a cylindrical structure with a threaded hole 6 in the center and a washer 1 at the bottom. The diameter of the washer 1 is larger than that of the body 2. Multiple ridges 4 are arranged around the body 2, and adjacent ridges 4 are connected by an arc surface 3. The arc surface 3 is recessed towards the axis of the cylinder, and the threaded hole 6 contains Spilock threads. The combination of the arc surface 3 and the ridges 4 reduces the amount of material used in the body 2, thus reducing the weight of the nut. However, the supporting strength of the combination of the ridges 4 and the arc surface 3 is not reduced compared to that of a polygonal prism of the same diameter.

[0020] The width of the arc surface 3 near the gasket 1 is smaller than that of the other end.

[0021] The depth of the arc surface 3 near the gasket 1 is less than that of the other end.

[0022] The top of each ridge 4 is sloping 5, with one end of the sloping 5 near the threaded hole 6 being higher than the other end. The sloping 5 further reduces the overall weight and makes the top surface of the body 2 more rounded, preventing it from being scratched by collisions with equipment.

[0023] The Spitec thread includes protruding teeth 61 arranged in a spiral pattern. The outer side of the teeth 61 is connected to the body 2, and the inner side is flat. A first inclined surface 62 is provided on one side of the teeth 61, which connects to a second inclined surface 63. The extension lines of the first inclined surface 62 and the second inclined surface 63 form a 30° angle. A third inclined surface 64 is provided on the other side of the teeth 61, which forms a 90° angle with the second inclined surface of the lower teeth. The flat side of the teeth 61 increases the contact area and improves the friction. The Spitec thread design gives the nut anti-loosening properties.

[0024] The connection between the gasket 1 and the body 2 is an inclined slope, with the side of the slope closest to the axis of the body 2 having a higher horizontal height than the other side. This creates a reinforcing rib at the connection surface between the body 2 and the gasket 1, enhancing the strength of the gasket 1. An annular groove 7 is formed around the threaded hole 6 on the side of the gasket 1 away from the body 2. The outer diameter of the annular groove 7 is less than or equal to the outer diameter of the circle formed by the ridge 5. The annular groove 7 is recessed towards the body 2, with its depth decreasing from the center outwards. The distance between the deepest part of the recess and the gasket surface is 3-5 mm. The annular groove 7 further reduces the overall weight and creates a certain amount of deformation around the threaded hole 6, causing the gasket 1 to deform slightly when the bolt engages with the nut, creating an interference fit and strengthening the connection.

[0025] Based on the above description and inspired by this utility model, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. Lightened check nut comprising a body (2) characterized in that, The body (2) is a column structure, a threaded hole (6) is arranged in the center, a gasket (1) is arranged at the bottom, a plurality of ridges (4) are arranged around the body (2), adjacent ridges (4) are connected by arc surfaces (3), the arc surfaces (3) are recessed towards the axis of the body (2), and a helicoil is arranged in the threaded hole (6).

2. The light-weight check nut according to claim 1, characterized in that The width of the end of the arc surface (3) close to the gasket (1) is smaller than that of the other end.

3. The light-weight check nut according to claim 1, characterized in that The depth of the end of the arc surface (3) close to the gasket (1) is smaller than that of the other end.

4. The light-weight lock nut according to claim 1, characterized in that The top of each ridge (4) is a bevel (5), and the horizontal position of the end of the bevel (5) close to the threaded hole (6) is higher than that of the other end.

5. The light-weight lock nut according to claim 1, wherein The helicoil comprises protruding teeth (61) arranged in a spiral shape, the outer side of the teeth (61) is connected with the body (2), the inner side is a plane, one side of the teeth (61) is provided with a first bevel (62), the first bevel (62) is connected with a second bevel (63), the first bevel (62) and the second bevel (63) form an angle of 30°, the other side of the teeth (61) is provided with a third bevel (64), and the third bevel (64) forms an angle of 90° with the second bevel of the lower tooth.

6. The light-weight lock nut according to claim 1, wherein The connection between the gasket (1) and the body (2) is an inclined slope.

7. The light-weight lock nut according to claim 1, wherein The side of the gasket (1) away from the body (2) is provided with an annular groove (7) around the threaded hole (6), the outer diameter of the annular groove (7) is less than or equal to the outer diameter of the circle formed by the ridge (4); the annular groove (7) is recessed towards the body (2), and the distance between the deepest part of the recess and the surface of the gasket is 3-5 mm.

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