A toothed fastening hexagonal nut

Abstract

The invention discloses a hexagonal nut with teeth, comprising a hexagonal nut body, a threaded mounting hole, a fastening inner ring groove, an inner locking flower tooth, a shrinking pressure ring, a limiting top ring, an outer ring groove and an outer fastening flower tooth. The invention can make the outer elastic fastening teeth of the hexagonal nut clamp the mounting surface, and at the same time cooperate with the elastic fastening teeth on the inner side of the bottom to shrink and lock the installed threaded column, thereby improving the reliability of the hexagonal nut locking.

Description

[Technical field]

[0001] The invention relates to the technical field of nuts, in particular to the technical field of a toothed fastening hexagonal nut. [Background technology]

[0002] Hexagon nuts are used with bolts and screws to connect and fasten parts. According to different materials, they are divided into several types, such as carbon steel, stainless steel, and non-ferrous metals (such as copper). The working principle of hexagon nuts is to use the friction between the hexagon nuts and bolts for self-locking. However, the reliability of this self-locking will be reduced under dynamic loads. In some important occasions, we need to design some fastening structures to ensure the reliability of the hexagonal nut locking. [Summary of the invention]

[0003] The purpose of the present invention is to solve the problems in the prior art and to propose a toothed fastening hexagonal nut, which can enable the outer elastic fastening teeth of the hexagonal nut to clamp the mounting surface, and at the same time cooperate with the elastic fastening teeth on the inner side of the bottom to shrink and lock the installed threaded column, thereby improving the reliability of the locking of the hexagonal nut.

[0004] To achieve the above-mentioned purpose, the present invention proposes a toothed fastening hexagonal nut, comprising a hexagonal nut body, a threaded mounting hole, a fastening inner ring groove, an inner locking flower tooth, a shrinking pressure ring, a limiting top ring, an outer ring groove and an outer fastening flower tooth, the hexagonal nut body is provided with a threaded mounting hole penetrating along the axial direction, the bottom of the threaded mounting hole is provided with a fastening inner ring groove, the inner side of the fastening inner ring groove is provided with a plurality of inner locking flower teeth inclined inwardly, the outer side of the inner locking flower teeth is sleeved with a shrinking pressure ring, the bottom of the shrinking pressure ring is provided with a limiting top ring, the bottom surface of the limiting top ring is protrudingly arranged below the fastening inner ring groove, the outer side of the bottom of the hexagonal nut body is provided with an outer ring groove, and a plurality of outer fastening flower teeth are inclined outwardly in the outer ring groove.

[0005] Preferably, there are six external locking teeth, which are distributed one by one at the bottom of the side edges of the hexagonal nut body, and the outer circumferential diameter of the external locking teeth is larger than the outer diameter of the hexagonal nut body, and the initial height of the external locking teeth is three times the depth of the outer ring groove.

[0006] Preferably, the initial inclination angle of the outer locking tooth is 60°-75°, and the inclination angle of the inner locking tooth is 45°-60°.

[0007] Preferably, there are multiple inner locking teeth, which are evenly distributed in the fastening inner ring groove obliquely inward and downward, and the initial position of the bottom end of the inner locking teeth is located outside the vertical mounting surface of the threaded mounting hole.

[0008] Preferably, the outer locking teeth and the inner locking teeth are both elastic teeth.

[0009] Preferably, a wear-resistant rubber sleeve is adhered to the bottom end of the inner locking tooth.

[0010] Preferably, the inner side surface of the shrinkable pressure ring is in the shape of an arc with a gradually shrinking bottom.

[0011] Preferably, an inner side wall of the fastening inner ring groove is provided with a positioning internal thread, and an outer side surface of the shrinking pressure ring is correspondingly provided with a positioning external thread.

[0012] Preferably, the bottom surface of the limiting top ring is a non-slip surface, and the limiting top ring is parallel to the bottom of the hexagonal nut body.

[0013] The beneficial effects of the present invention are as follows: the present invention combines the hexagonal nut body, the threaded mounting hole, the fastening inner ring groove, the inner locking flower teeth, the shrinkage pressure ring, the limit top ring, the outer ring groove and the outer fastening flower teeth together, and after experimental optimization, the outer elastic fastening teeth of the hexagonal nut can be firmly clamped on the mounting surface, and at the same time, the elastic fastening teeth on the inner side of the bottom can be used to shrink and lock the installed threaded column, thereby improving the locking reliability of the hexagonal nut.

[0014] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0015] Figure 1 It is a structural schematic diagram of a toothed fastening hexagonal nut of the present invention;

[0016] Figure 2 The present invention is a schematic diagram of a bottom-up structural view of a toothed fastening hexagonal nut.

[0017] In the figure: 1- hexagonal nut body, 2- threaded mounting hole, 3- fastening inner ring groove, 4- inner locking flower teeth, 5- shrinkage pressure ring, 6- limit top ring, 7- outer ring groove, 8- outer fastening flower teeth, 9- wear-resistant rubber sleeve, 10- positioning inner thread, 11- positioning outer thread. [Specific implementation method]

[0018] See also Figure 1 and Figure 2The present invention discloses a toothed fastening hexagonal nut, comprising a hexagonal nut body 1, a threaded mounting hole 2, a fastening inner ring groove 3, an inner locking flower tooth 4, a shrinkage pressure ring 5, a limit top ring 6, an outer ring groove 7 and an outer fastening flower tooth 8. The hexagonal nut body 1 is provided with a threaded mounting hole 2 through the axial direction, a fastening inner ring groove 3 is provided at the bottom of the threaded mounting hole 2, a plurality of inner locking flower teeth 4 are provided on the inner side of the fastening inner ring groove 3, and the outer side of the inner locking flower teeth 4 is sleeved A shrinkage pressure ring 5 is provided, and a limit top ring 6 is provided at the bottom of the shrinkage pressure ring 5. The bottom surface of the limit top ring 6 is protrudingly arranged below the fastening inner ring groove 3. An outer ring groove 7 is provided on the outside of the bottom of the hexagonal nut body 1. A plurality of outer fastening teeth 8 are provided in the outer ring groove 7 outwardly inclined. The number of the outer locking teeth is six, and the outer locking teeth are distributed one by one at the bottom of the side edges of the hexagonal nut body 1. The outer circumferential diameter of the outer locking teeth is greater than The outer diameter of the hexagonal nut body 1, the initial height of the outer locking tooth is three times the depth of the outer ring groove 7, the initial inclination angle of the outer locking tooth is 60°-75°, the inclination angle of the inner locking tooth 4 is 45°-60°, the number of the inner locking teeth 4 is multiple, the inner locking teeth 4 are evenly distributed in the inner ring groove 3 obliquely downward and inward, the bottom end of the inner locking tooth 4 is initially located on the outside of the vertical mounting surface of the threaded mounting hole 2, The outer locking teeth and the inner locking teeth 4 are both elastic teeth. A wear-resistant rubber sleeve 9 is adhered to the bottom of the inner locking teeth 4. The inner side surface of the shrinking pressure ring 5 is an arc shape with a gradually shrinking bottom. A positioning internal thread 10 is provided on the inner side wall of the fastening inner ring groove 3. A positioning external thread 11 is correspondingly provided on the outer side surface of the shrinking pressure ring 5. The bottom surface of the limiting top ring 6 is an anti-slip surface, and the limiting top ring 6 is parallel to the bottom of the hexagonal nut body 1.

[0019] The present invention combines a hexagonal nut body 1, a threaded mounting hole 2, a fastening inner ring groove 3, an inner locking flower tooth 4, a shrinkage pressure ring 5, a limiting top ring 6, an outer ring groove 7 and an outer fastening flower tooth 8 together, and after experimental optimization, can make the outer elastic fastening teeth of the hexagonal nut clamp the mounting surface, and at the same time cooperate with the elastic fastening teeth on the inner side of the bottom to shrink and lock the installed threaded column, thereby improving the locking reliability of the hexagonal nut.

[0020] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A toothed fastening hexagonal nut, characterized in that: The invention comprises a hexagonal nut body (1), a threaded mounting hole (2), a fastening inner ring groove (3), an inner locking flower tooth (4), a shrinking pressure ring (5), a limiting top ring (6), an outer ring groove (7) and an outer fastening flower tooth (8), wherein the hexagonal nut body (1) is provided with a threaded mounting hole (2) penetrating along the axial direction, the bottom of the threaded mounting hole (2) is provided with a fastening inner ring groove (3), the inner side of the fastening inner ring groove (3) is provided with a plurality of inner locking flower teeth (4) inclined inwardly, the outer side of the inner locking flower teeth (4) is sleeved with a shrinking pressure ring (5), the bottom of the shrinking pressure ring (5) is provided with a limiting top ring (6), and the bottom surface of the limiting top ring (6) is protruding below the fastening inner ring groove (3). The outer side of the bottom of the hexagonal nut body (1) is provided with an outer ring groove (7), and a plurality of outer fastening teeth (8) are arranged in an outwardly inclined manner inside the outer ring groove (7), and the outer fastening teeth and the inner locking teeth (4) are both elastic teeth. The bottom end of the inner locking teeth (4) is adhered with a wear-resistant rubber sleeve (9), and the inner side surface of the shrinking pressure ring (5) is in the shape of an arc with a gradually shrinking bottom. The inner side wall of the fastening inner ring groove (3) is provided with a positioning internal thread (10), and the outer side surface of the shrinking pressure ring (5) is correspondingly provided with a positioning external thread (11), and the bottom surface of the limiting top ring (6) is an anti-slip surface, and the limiting top ring (6) is parallel to the bottom of the hexagonal nut body (1).

2. A toothed fastening hexagonal nut according to claim 1, characterized in that: The number of the external fastening teeth is six, and the external fastening teeth are distributed one by one at the bottom of the side edges of the hexagonal nut body (1). The outer circumferential diameter of the fastening teeth is larger than the outer diameter of the hexagonal nut body (1), and the initial height of the fastening teeth is three times the depth of the outer ring groove (7).

3. A toothed fastening hexagonal nut according to claim 1, characterized in that: The initial inclination angle of the outer fastening tooth is 60°-75°, and the inclination angle of the inner locking tooth (4) is 45°-60°.

4. A toothed fastening hexagonal nut according to claim 1, characterized in that: There are a plurality of inner locking teeth (4), and the inner locking teeth (4) are evenly distributed in the inner fastening groove (3) obliquely downwardly and inwardly, and the bottom end initial position of the inner locking teeth (4) is located outside the vertical mounting surface of the threaded mounting hole (2).

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