Anti-loosening fastening assembly

Abstract

The utility model provides an anti-loosening fastening assembly which comprises a bolt and a nut and further comprises a positioning ring, the positioning ring is connected to the bolt in a sleeved mode, one side face of the positioning ring is provided with protruding positioning protruding thorns, the other side face of the positioning ring is provided with a stopping elastic piece, one end of the stopping elastic piece is connected with the positioning ring, and the other end of the stopping elastic piece is connected with the nut. The other end of the stopping elastic piece and the positioning ring are arranged in a spaced mode, stopping teeth are arranged on the side face, facing the positioning ring, of the nut, and the stopping teeth and the stopping elastic piece are matched to prevent the nut from loosening and rotating. When the nut is used, the positioning convex thorns can be drilled into a fixed part, and the positioning ring can be fixedly connected with the fixed part by virtue of the positioning convex thorns, so that after the nut is screwed, the nut and the positioning ring can prevent the nut from loosening and rotating through the matching of the stopping elastic sheets and the stopping teeth, and the purpose of preventing the nut from loosening is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to an anti-loosening fastening component. Background Art

[0002] A bolt is a fastener consisting of a bolt head and a screw rod. It needs to be used in conjunction with a nut to fasten two parts with through holes.

[0003] Bolts are widely used as a fastening accessory in current production and life. Due to their good connection effect and easy disassembly, they are generally recognized by people. With the change of their usage scenarios, the requirements for the anti-loosening and fastening performance of bolts are also constantly increasing.

[0004] The patent with the patent authorization announcement number CN 219242423 U discloses a bolt and nut, in which a positioning nut is added to the bolt, the positioning nut is fixedly connected to the bolt in the circumferential direction, and the positioning nut is used to prevent the locking nut from rotating, thereby achieving the purpose of preventing loosening.

[0005] However, in the above technical solution, a groove structure needs to be provided on the bolt, which will destroy the integrity of the bolt, destroy the overall structure of the bolt, and affect the structural strength of the bolt. Utility Model Content

[0006] In view of the problems pointed out in the background technology, the utility model proposes an anti-loosening fastening component to solve the above technical problems.

[0007] The technical solution of the utility model is achieved in this way:

[0008] An anti-loosening fastening assembly comprises a bolt and a nut, and also comprises a positioning ring, wherein the positioning ring is sleeved on the bolt, a protruding positioning thorn is provided on one side surface of the positioning ring, a blocking spring is provided on the other side surface of the positioning ring, one end of the blocking spring is connected to the positioning ring, and the other end of the blocking spring is spaced apart from the positioning ring, and a blocking tooth is provided on the side of the nut facing the positioning ring, and the blocking tooth cooperates with the blocking spring to prevent the nut from loosening and rotating.

[0009] The utility model is further configured that the positioning ring is provided with a deformation notch corresponding to the blocking spring sheet.

[0010] The utility model is further configured that two blocking springs are provided, and the two blocking springs are arranged at equal intervals in the circumferential direction of the positioning ring.

[0011] The utility model is further configured that a plurality of the blocking teeth are provided, and the plurality of blocking teeth are arranged at equal intervals in the circumferential direction of the nut.

[0012] The utility model is further configured that a protruding spacing protrusion is provided on one side surface of the positioning ring, and the length of the positioning burr is greater than the length of the spacing protrusion.

[0013] The utility model is further configured such that the spacing protrusion and the positioning protrusion are coaxially arranged.

[0014] The utility model is further configured that a plurality of the spacing protrusions are provided, and the plurality of spacing protrusions are spaced apart from each other in the circumferential direction of the positioning ring.

[0015] The utility model is further configured such that the edge of the blocking spring is located on the radial outer side of the nut.

[0016] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0017] The anti-loosening fastening assembly provided by the utility model can, when in use, have the positioning burrs drilled into the fixed parts, and the positioning ring can be fixedly connected to the fixed parts by means of the positioning burrs, so that when the nut is tightened, the nut and the positioning ring can prevent the nut from loosening and rotating by the cooperation of the preventing spring sheet and the preventing teeth, thereby achieving the purpose of preventing the nut from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 It is a structural schematic diagram of the utility model in use state.

[0020] Figure 2 It is an exploded schematic diagram of the utility model in use.

[0021] Figure 3 It is a structural schematic diagram of the utility model.

[0022] Figure 4 The utility model is shown in FIG. Figure 1 .

[0023] Figure 5 The utility model is shown in FIG. Figure 2 .

[0024] Description of the reference numerals in the accompanying drawings: bolt 1, nut 2, positioning ring 3, positioning thorn 4, blocking spring piece 5, blocking tooth 6, deformation notch 7, spacing protrusion 8, part 100. DETAILED DESCRIPTION

[0025] 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.

[0026] For reference Figure 1-5 The utility model is described as follows:

[0027] Embodiment 1: An anti-loosening fastening assembly comprises a bolt 1 and a nut 2, wherein the nut 2 is threadedly connected to the bolt 1.

[0028] It also includes a circular positioning ring 3, which is sleeved on the bolt 1. A protruding positioning ridge 4 is provided on one side of the positioning ring 3. The end of the positioning ridge 4 is conical. A protruding spacing protrusion 8 is provided on one side of the positioning ring 3. The length of the positioning ridge 4 is greater than the length of the spacing protrusion 8. The spacing protrusion 8 and the positioning ridge 4 are coaxially arranged. There are multiple spacing protrusions 8, and the multiple spacing protrusions 8 are arranged at circumferential intervals on the positioning ring 3.

[0029] A blocking spring sheet 5 is provided on the other side of the positioning ring 3, one end of the blocking spring sheet 5 is connected to the positioning ring 3, and the other end of the blocking spring sheet 5 is spaced apart from the positioning ring 3. The blocking spring sheet 5 and the positioning ring 3 are integrally provided, and a deformation notch 7 corresponding to the blocking spring sheet 5 is provided on the positioning ring 3. There are two blocking spring sheets 5, and the two blocking spring sheets 5 are equidistantly spaced apart in the circumferential direction of the positioning ring 3.

[0030] A blocking tooth 6 is provided on the side of the nut 2 facing the positioning ring 3. The blocking tooth 6 cooperates with the blocking spring piece 5 to prevent the nut 2 from loosening and rotating. A plurality of blocking teeth 6 are provided, and the plurality of blocking teeth 6 are arranged at equal intervals in the circumferential direction of the nut 2. The cross-section of the blocking tooth 6 is a right triangle, and a right-angled side of the right triangle is perpendicular to the end face of the nut 2.

[0031] By adopting the above technical solution, when the nut 2 is tightened, the preventing spring piece 5 contacts the inclined surface of the preventing tooth 6, which will not prevent the nut 2 from being tightened and rotated. After the nut 2 is tightened, if the nut is about to loosen and rotate, the preventing spring piece 5 will abut against the right-angled edge of the preventing tooth 6, limiting the loosening and rotation of the nut 2, thereby achieving the purpose of preventing loosening.

[0032] The edge of the blocking spring sheet 5 is located radially outside the nut 2. With this technical solution, when the nut 2 is tightened and locked, the blocking spring sheet 5 can be pressed to separate the blocking spring sheet 5 from the blocking tooth 6, so that the nut 2 can be loosened and rotated.

[0033] In the technical solution of the present application, the deformation notch 7 is provided to help prevent the elastic sheet 5 from undergoing elastic deformation, and to help prevent the elastic sheet 5 from separating from the preventing tooth 6 .

[0034] In the technical solution of the present application, the positioning thorns 4 on the positioning ring 3 penetrate into the fixed part 100, so that the positioning ring 3 is fixedly connected to the part 100.

[0035] In the technical solution of the present application, the spacing protrusion 8 can make the positioning ring 3 and the part 100 be spaced apart to form a spacing space, so that when the preventing spring piece 5 is pressed, the preventing spring piece 5 can enter the deformation notch 7 and enter the spacing space, which helps to prevent the spring piece 5 from separating from the preventing tooth 6.

[0036] 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. An anti-loosening fastening assembly, comprising a bolt (1) and a nut (2), characterized in that: The invention also comprises a positioning ring (3), wherein the positioning ring (3) is sleeved on the bolt (1), a protruding positioning thorn (4) is provided on one side surface of the positioning ring (3), a blocking spring sheet (5) is provided on the other side surface of the positioning ring (3), one end of the blocking spring sheet (5) is connected to the positioning ring (3), and the other end of the blocking spring sheet (5) is spaced apart from the positioning ring (3), and a blocking tooth (6) is provided on the side surface of the nut (2) facing the positioning ring (3), and the blocking tooth (6) cooperates with the blocking spring sheet (5) to prevent the nut (2) from loosening and rotating.

2. The anti-loosening fastening assembly according to claim 1, characterized in that: The positioning ring (3) is provided with a deformation notch (7) corresponding to the blocking spring sheet (5).

3. The anti-loosening fastening assembly according to claim 2, characterized in that: There are two blocking spring sheets (5), and the two blocking spring sheets (5) are arranged at equal intervals in the circumferential direction of the positioning ring (3).

4. The anti-loosening fastening assembly according to claim 1, characterized in that: The blocking teeth (6) are provided in plurality, and the plurality of blocking teeth (6) are arranged at equal intervals in the circumferential direction of the nut (2).

5. The anti-loosening fastening assembly according to claim 1, characterized in that: A protruding spacing protrusion (8) is provided on one side surface of the positioning ring (3), and the length of the positioning thorn (4) is greater than the length of the spacing protrusion (8).

6. The anti-loosening fastening assembly according to claim 5, characterized in that: The spacing protrusion (8) and the positioning ridge (4) are coaxially arranged.

7. The anti-loosening fastening assembly according to claim 6, characterized in that: There are a plurality of the spacing protrusions (8), and the plurality of spacing protrusions (8) are arranged at intervals in the circumferential direction of the positioning ring (3).

8. The anti-loosening fastening assembly according to claim 6, characterized in that: The edge of the blocking spring sheet (5) is located radially outside the nut (2).

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