Locking nut with non-metal insert

Abstract

The locking nut with the nonmetal insert comprises a hexagonal nut, a square nylon piece and an external thread gland, an internal thread hole is formed in the hexagonal nut in a penetrating mode, an internal thread ring sleeve is fixedly installed at one end of the hexagonal nut, and the internal thread ring sleeve is communicated with the internal thread hole; the square nylon piece is detachably and fixedly installed in the hexagonal nut through the external thread gland, and the external thread gland is in threaded connection with the internal thread ring sleeve. According to the overall arrangement, in the using process, when the square nylon piece is damaged, the square nylon piece can be independently replaced, and during replacement, the square nylon piece can be replaced only by separating the elastic clamping plate from the notch and then anticlockwise rotating the hollow six-edge cap to take down the external thread gland; therefore, the whole device is more convenient and flexible.

Description

Technical Field

[0001] The utility model relates to the field of locking nuts, and in particular to a locking nut with a non-metallic insert. Background Art

[0002] The non-metallic insert locking nut, also known as the non-metallic insert hexagonal locking nut, is a special nut with a nylon block or nylon ring embedded in the threaded hole. When this design is screwed together, the thread of the bolt will naturally squeeze into a spiral on the nylon ring, forming a tight fit with the bolt thread, and generate friction resistance under the elastic force of nylon, thereby achieving the purpose of preventing loosening.

[0003] During long-term use, due to the structural reasons of the non-metallic insert itself, it is easy to wear, thus affecting the locking effect, so it needs to be replaced.

[0004] After searching, a nylon locking nut disclosed in Chinese patent number CN 211343674 U includes a nut body and a nylon washer, one end of the nut body is provided with a placement groove for the nylon washer to be inserted, and a limit assembly is provided at one end of the nut body close to the nylon washer, the limit assembly includes a limit ring provided at one end of the nut body, the limit ring is in close contact with one side of the nylon washer, a connecting ring is connected to the edge of the limit ring facing the nut body, a connecting groove is provided on the side of the nut body facing the limit ring, and the two opposite sides of the side wall of the nut body are provided with limit grooves along the circumferential direction, a limit plate is provided in the limit groove, a limit column is connected to the side of the limit plate facing the limit groove to penetrate into the connecting groove, and the two opposite sides of the outer wall of the connecting ring are provided with limit holes for the limit column to be inserted. When the nylon washer is damaged and needs to be replaced, the limit plate is pulled out of the limit groove, and then the connecting ring is taken out of the connecting groove, and the nylon washer can be taken out of the placement groove and replaced, which is simple to operate and saves time and effort.

[0005] However, the above-mentioned nylon locking nut has many accessories, which makes the process of replacing the non-metallic insert very complicated and troublesome, and not convenient enough.

[0006] Therefore, it is very necessary to invent a locking nut with a non-metallic insert. Utility Model Content

[0007] In order to solve the above technical problems, the utility model provides a locking nut with a non-metallic insert, which adopts the following technical solutions: a locking nut with a non-metallic insert, comprising a hexagonal nut, a square nylon piece and an external thread gland, wherein: an internal thread hole is penetrated through the hexagonal nut, and an internal thread ring sleeve is fixedly installed at one end of the hexagonal nut, and the internal thread ring sleeve is communicated with the internal thread hole; the square nylon piece is detachably fixedly installed in the hexagonal nut through the external thread gland, and the external thread gland is threadedly connected to the internal thread ring sleeve;

[0008] Preferably, a notch is provided on one side of the internal threaded ring sleeve;

[0009] Preferably, a limiting groove is provided on one side of the external threaded gland, and an elastic clamp is fixedly installed on one side of the external threaded gland, one end of the elastic clamp is in the limiting groove; the elastic clamp is clamped with the notch.

[0010] Preferably, a square cavity is formed at one end of the hexagonal nut with an internal threaded ring sleeve, and the square cavity is connected to the hexagonal nut and the internal threaded ring sleeve; the square nylon piece is placed in the square cavity; and the diameter of the internal threaded ring sleeve is greater than the length of the diagonal of the square cavity.

[0011] Preferably, a round hole is formed through the square nylon piece, and the round hole is connected with the internal thread hole and the internal thread ring sleeve.

[0012] Preferably, a through hole is formed through the external threaded gland, and the through hole is connected to the circular hole, the internal threaded hole and the internal threaded ring sleeve; the inner diameter of the through hole is larger than the inner diameter of the circular hole, and smaller than the width of the square nylon part.

[0013] Preferably, a hollow hexagonal cap is fixedly mounted on one side of the external threaded gland, and the hollow hexagonal cap is connected to the through hole, and the inner diameter of the hollow hexagonal cap is the same as the inner diameter of the through hole.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] The overall arrangement of the utility model allows the square nylon part to be replaced individually when it is damaged during use. When replacing, it is only necessary to separate the elastic clamping plate from the notch, and then rotate the hollow hexagonal cap counterclockwise to remove the external threaded gland, so that the square nylon part can be replaced, thereby making the overall arrangement more convenient and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the explosion structure of the utility model.

[0018] Figure 3 It is a partial enlarged structural schematic diagram of point A of the utility model.

[0019] In the figure:

[0020] Hexagonal nut 1, internal thread hole 2, square cavity 3, internal thread ring sleeve 4, notch 5, square nylon part 6, round hole 7, external thread gland 8, hollow hexagonal cap 9, through hole 10, limit groove 11, elastic clamping plate 12. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0022] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] Example

[0025] Reference Figure 1-3 , a locking nut with a non-metallic insert, comprising a hexagonal nut 1, a square nylon part 6 and an externally threaded gland 8, wherein: an internally threaded hole 2 is penetrated through the hexagonal nut 1, and an internally threaded sleeve 4 is fixedly installed at one end of the hexagonal nut 1, so as to provide an installation space for the externally threaded gland 8 through the internally threaded sleeve 4, and the internally threaded sleeve 4 is communicated with the internally threaded hole 2; the square nylon part 6 is detachably fixedly installed in the hexagonal nut 1 through the externally threaded gland 8, and the externally threaded gland 8 is threadedly connected to the internally threaded sleeve 4, and the arrangement between the threaded gland 8 and the internally threaded sleeve 4 not only can fix the square nylon part 6, but also facilitate the individual replacement of the square nylon part 6 at a later time;

[0026] A notch 5 is provided on one side of the internal threaded ring sleeve 4; a limiting groove 11 is provided on one side of the external threaded gland 8, and an elastic clip 12 is fixedly installed on one side of the external threaded gland 8, one end of the elastic clip 12 is in the limiting groove 11; the elastic clip 12 is clamped with the notch 5, and the setting between the elastic clip 12 and the notch 5 can prevent the threaded gland 8 from loosening and detaching from the internal threaded ring sleeve 4 during use, thereby ensuring the stability of the square nylon part 6 in the square cavity 3.

[0027] A square cavity 3 is provided at one end of the hexagonal nut 1 with an internal threaded ring sleeve 4 to provide installation space for the square nylon part 6 and prevent the square nylon part 6 from rotating. The square cavity 3 is connected to the hexagonal nut 1 and the internal threaded ring sleeve 4; the square nylon part 6 is placed in the square cavity 3; the diameter of the internal threaded ring sleeve 4 is larger than the length of the diagonal of the square cavity 3.

[0028] A round hole 7 is formed through the square nylon part 6, and the round hole 7 is communicated with the internal thread hole 2 and the internal thread ring sleeve 4 so that the bolt can pass through.

[0029] A through hole 10 is formed through the external threaded gland 8 for the bolt to pass through, and the through hole 10 is connected to the circular hole 7, the internal threaded hole 2 and the internal threaded ring sleeve 4; the inner diameter of the through hole 10 is larger than the inner diameter of the circular hole 7, and the inner diameter of the through hole 10 is smaller than the width of the square nylon part 6.

[0030] A hollow hexagonal cap 9 is fixedly mounted on one side of the external threaded gland 8 . The hollow hexagonal cap 9 is arranged so as to facilitate assembly and disassembly of the external threaded gland 8 . The inner diameter of the hollow hexagonal cap 9 is the same as that of the through hole 10 .

[0031] In this embodiment, when the square nylon part 6 is damaged and needs to be replaced, it is only necessary to lift the elastic clamp 12 to allow the elastic clamp 12 to disengage from the notch 5, and then the external threaded cover 8 can be rotated counterclockwise through the hollow hexagonal cap 9 to separate the external threaded cover 8 from the internal threaded ring sleeve 4, and the square nylon part 6 can be taken out for replacement.

[0032] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A locking nut with a non-metallic insert, characterized in that: It comprises a hexagonal nut (1), a square nylon piece (6) and an externally threaded gland (8), wherein: an internally threaded hole (2) is formed through the hexagonal nut (1), and an internally threaded ring sleeve (4) is fixedly installed at one end of the hexagonal nut (1), and the internally threaded ring sleeve (4) is communicated with the internally threaded hole (2); the square nylon piece (6) is detachably fixedly installed in the hexagonal nut (1) through the externally threaded gland (8), and the externally threaded gland (8) is threadedly connected to the internally threaded ring sleeve (4); A notch (5) is formed on one side of the internal threaded ring sleeve (4); A limiting groove (11) is provided on one side of the external threaded gland (8), and an elastic clamping plate (12) is fixedly installed on one side of the external threaded gland (8), with one end of the elastic clamping plate (12) being located in the limiting groove (11); the elastic clamping plate (12) is clamped with the notch (5).

2. A locking nut with a non-metallic insert as claimed in claim 1, characterized in that: A square cavity (3) is formed at one end of the hexagonal nut (1) with an internally threaded ring sleeve (4), and the square cavity (3) is connected to the hexagonal nut (1) and the internally threaded ring sleeve (4); the square nylon piece (6) is placed in the square cavity (3).

3. A locking nut with a non-metallic insert as claimed in claim 2, characterized in that: The square nylon piece (6) is provided with a circular hole (7) extending therethrough, and the circular hole (7) is communicated with the internal thread hole (2) and the internal thread ring sleeve (4).

4. A locking nut with a non-metallic insert as claimed in claim 3, characterized in that: The external threaded gland (8) is provided with a through hole (10), and the through hole (10) is connected to the circular hole (7), the internal threaded hole (2) and the internal threaded ring sleeve (4).

5. A locking nut with a non-metallic insert as claimed in claim 4, characterized in that: A hollow hexagonal cap (9) is fixedly mounted on one side of the external threaded gland (8), and the hollow hexagonal cap (9) is connected to the through hole (10).

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