A locking nut

Abstract

The utility model proposes a locking nut, including a nut body, one end of the nut body is provided with an annular embracing sleeve, the embracing sleeve can be converged to the inner side thereof, a first deformation groove is provided on the embracing sleeve, the first deformation groove is arranged through the inner and outer sides of the embracing sleeve, and the first deformation groove is arranged along the circumferential direction of the embracing sleeve; a second deformation groove is provided on the embracing sleeve, the second deformation groove is arranged through the inner and outer sides and the end of the embracing sleeve, and the second deformation groove is arranged along the axial direction of the embracing sleeve; the second deformation groove is located at the positions of the two ends of the first deformation groove; and also includes connecting holes of the nut body passing through the two sides of the second deformation groove, a screw is connected in the connecting hole, and a nut is threadedly connected on the screw. When the nut of the present application is connected with a bolt, the embracing sleeve can be converged and embraced on the bolt through the screw and the nut, so that in the radial direction of the nut, the nut and the bolt form a radial locking force, thereby enhancing the locking connection ability of the nut and the bolt.

Description

Technical Field

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

[0002] Nuts are widely used in mechanical fixation. With the development of the machinery manufacturing industry, the energy of various mechanical equipment is getting higher and higher, and the movement speed and frequency are constantly increasing. It is becoming increasingly difficult for ordinary nut fixation to form a reliable fixation for mechanical equipment under dynamic loads. Therefore, it is necessary to improve the locking ability of nuts.

[0003] An existing improvement idea is to form a pre-tightening force (locking force) between the nut and the bolt in the radial direction of the nut, but how to form the locking force in the radial direction is a problem that needs to be considered. Utility Model Content

[0004] In view of the problems pointed out in the background technology, the utility model proposes a locking nut to solve the above technical problems.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A locking nut comprises a nut body. One end of the nut body is provided with an annular embracing sleeve, and the embracing sleeve can be gathered toward the inside.

[0007] The utility model is further configured that the embracing sleeve is provided with a first deformation groove, the first deformation groove is arranged through the inner and outer sides of the embracing sleeve, and the first deformation groove is arranged along the circumference of the embracing sleeve;

[0008] The embracing sleeve is provided with a second deformation groove, the second deformation groove runs through the inner and outer sides and the end of the embracing sleeve, and the second deformation groove is arranged along the axial direction of the embracing sleeve;

[0009] The second deformation groove is located at two ends of the first deformation groove;

[0010] It also includes connecting holes of the nut body penetrating through both sides of the second deformation groove, a screw is connected in the connecting hole, and a nut is threadedly connected on the screw.

[0011] The utility model is further configured such that the second deformation groove is located in the middle of the two ends of the first deformation groove.

[0012] The utility model is further configured that the nut is in a circular ring shape, an inner wall of the nut is provided with an internal thread, and an outer wall of the nut is provided with an anti-slip pattern.

[0013] The utility model is further configured that the head of the screw is provided with an inwardly concave hexagonal groove.

[0014] The utility model is further configured that a third deformation groove is provided on the inner side wall of the embracing sleeve, and the third deformation groove runs through the end of the embracing sleeve.

[0015] The utility model is further configured such that the third deformation groove is configured correspondingly to the second deformation groove.

[0016] The utility model is further configured such that, in a direction gradually away from the nut body, the depth of the second deformation groove in the radial direction of the embracing sleeve gradually increases.

[0017] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0018] (1) When the nut of the present application is connected to the bolt, the embracing sleeve can be tightened and embraced on the bolt through the screw and the nut. In this way, in the radial direction of the nut, the nut and the bolt form a radial locking force, thereby enhancing the locking connection ability of the nut and the bolt.

[0019] (2) When the nut of the present application is connected to the bolt, the circumferential sleeve is deformed in the axial direction through the first deformation groove, so that a locking force is formed between the circumferential sleeve and the bolt, thereby enhancing the locking connection ability of the nut and the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is an exploded schematic diagram of the utility model.

[0023] Figure 3 It is a top view of the utility model.

[0024] Figure 4 For this utility model Figure 3 AA section view in.

[0025] Figure 5 For this utility model Figure 3 BB section view in.

[0026] Description of the numbers in the accompanying drawings: nut body 1, embracing sleeve 2, first deformation groove 3, second deformation groove 4, connecting hole 5, screw 6, nut 7, anti-slip pattern 8, groove 9, third deformation groove 10. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] For reference Figure 1-5 The utility model is described as follows:

[0029] Embodiment 1: A locking nut includes a hexagonal nut body 1, one end of which is provided with an annular embracing sleeve 2, the embracing sleeve 2 is annular, the embracing sleeve 2 is coaxially arranged with the nut body 1, the nut body 1 is threadedly connected with a bolt, and the diameter of the embracing sleeve 2 is equal to or slightly larger than the diameter of the bolt. The embracing sleeve 2 and the nut body 1 are arranged as one body.

[0030] The embracing sleeve 2 is provided with a first deformation groove 3, which is arranged on both sides of the embracing sleeve 2 and the first deformation groove 3 is arranged along the circumference of the embracing sleeve 2. The embracing sleeve 2 is provided with a second deformation groove 4, which is arranged on both sides of the embracing sleeve 2 and the end, and the second deformation groove 4 is arranged along the axial direction of the embracing sleeve 2. The second deformation groove 4 is located in the middle of both ends of the first deformation groove 3.

[0031] It also includes a connecting hole 5 of the nut body 1 that passes through both sides of the second deformation groove 4, a screw 6 is connected in the connecting hole 5, and a nut 7 is threadedly connected to the screw 6. The nut 7 is in a circular ring shape, and an internal thread is provided on the inner wall of the nut 7, and an anti-slip pattern 8 is provided on the outer wall of the nut 7. The head of the screw 6 is provided with a concave hexagonal groove 9. By adopting the above technical solution, when the screw 6 and the nut 7 are tightened, the embracing sleeves 2 on both sides of the second deformation groove 4 are close to each other, converged, and clamped on the bolt to form a locking position. Moreover, when the nut body 1 is tightened, the embracing sleeve 2 is compressed in the axial direction, and the embracing sleeve 2 is further deformed to form a locking connection with the bolt.

[0032] A third deformation groove 10 is provided on the inner side wall of the embracing sleeve 2, and the third deformation groove 10 passes through the end of the embracing sleeve 2. The third deformation groove 10 is provided corresponding to the second deformation groove 4, and the depth of the second deformation groove 4 in the radial direction of the embracing sleeve 2 gradually increases in the direction gradually away from the nut body 1. The second deformation groove 4 can help the embracing sleeve 2 to undergo convergence deformation and hold it tightly on the bolt.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A locking nut, comprising a nut body (1), characterized in that: One end of the nut body (1) is provided with an annular embracing sleeve (2), and the embracing sleeve (2) can be contracted toward the inside thereof; The embracing sleeve (2) is provided with a first deformation groove (3), the first deformation groove (3) is arranged through both inner and outer sides of the embracing sleeve (2), and the first deformation groove (3) is arranged along the circumference of the embracing sleeve (2); The embracing sleeve (2) is provided with a second deformation groove (4), the second deformation groove (4) penetrates both inner and outer sides and the end of the embracing sleeve (2), and the second deformation groove (4) is arranged along the axial direction of the embracing sleeve (2); The second deformation groove (4) is located at two ends of the first deformation groove (3); It also includes a connecting hole (5) of the nut body (1) penetrating through both sides of the second deformation groove (4), a screw (6) being connected inside the connecting hole (5), and a nut (7) being threadedly connected to the screw (6).

2. A locking nut according to claim 1, characterized in that: The second deformation groove (4) is located in the middle between the two ends of the first deformation groove (3).

3. A locking nut according to claim 1, characterized in that: The nut (7) is in the shape of a ring, an inner wall of the nut (7) is provided with an internal thread, and an outer wall of the nut (7) is provided with an anti-slip pattern (8).

4. A locking nut according to claim 1, characterized in that: The head of the screw (6) is provided with a concave hexagonal groove (9).

5. The locking nut according to claim 1, characterized in that: A third deformation groove (10) is provided on the inner side wall of the embracing sleeve (2), and the third deformation groove (10) passes through the end of the embracing sleeve (2).

6. A locking nut according to claim 5, characterized in that: The third deformation groove (10) is arranged corresponding to the second deformation groove (4).

7. A locking nut according to claim 5, characterized in that: In a direction gradually moving away from the nut body (1), the depth of the second deformation groove (4) in the radial direction of the embracing sleeve (2) gradually increases.

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