Locking nut with nylon cap

Abstract

The utility model provides a locking nut with a nylon cap, which comprises a nut main body, an external thread nylon sleeve and a gland, one end of the nut main body is provided with an integrated circular truncated cone, and a threaded hole and an annular cavity are arranged in the circular truncated cone in a penetrating manner; the external thread nylon sleeve is fixedly mounted in the threaded hole through threads; the gland is installed in the annular cavity, the gland is connected with the circular truncated cone in a clamped mode, and the gland is connected with the external thread nylon sleeve in an inserted mode. By means of the overall arrangement, in the using process, the external thread nylon sleeve can be prevented from loosening, and the external thread nylon sleeve can be conveniently and independently replaced in the later period.

Description

Technical Field

[0001] The utility model relates to the field of lock nuts, and particularly to a lock nut with a nylon cap. Background Art

[0002] A lock nut with a nylon cap is a special fastener that provides additional locking and anti-slip functions through the design of the nylon cap.

[0003] After retrieval, a nylon lock nut disclosed in Chinese Patent No. CN 214036472 U includes a nut seat. A hexagonal nut column is provided at the top of the nut seat. A nut cap is provided at the top of the hexagonal nut column. A placement groove is opened on the inner wall of the nut cap. A nylon washer is provided inside the placement groove. A positioning ring is provided at the top of the nut cap. A limiting strip is fixedly connected to the bottom of the positioning ring. A limiting groove is opened on the inner wall of the nut cap, and the limiting groove penetrates through the nut cap and extends to the inner wall of the hexagonal nut column. In the utility model, by screwing the threaded nail out of the threaded groove, a plurality of limiting strips at the bottom of the positioning ring can be drawn out of the limiting groove, and then the nylon washer can be taken out of the placement groove and replaced. The installation is the same. The anti-slip convex blocks at the bottom end of the nut seat further enhance the anti-slip performance, effectively prevent the nylon washer from rotating, facilitate increasing the connection tightness between the nut and the object, and effectively ensure the flatness effect between the surface of the nut and the object.

[0004] However, for the above-mentioned nylon lock nut, the nylon washer is fixed by a threaded nail. During use, once the threaded nail becomes loose, it will not only affect the stability of the nylon washer, but also make the process of replacing the nylon washer very cumbersome later.

[0005] Therefore, it is very necessary to invent a lock nut with a nylon cap. Content of the Utility Model

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model for a lock nut with a nylon cap is as follows: A lock nut with a nylon cap includes a nut body, an externally threaded nylon sleeve and a gland. Among them: One end of the nut body is provided with an integral frustum, and a threaded hole and an annular cavity are respectively and axially penetrated through the frustum; The externally threaded nylon sleeve is fixedly installed in the threaded hole by threading; The gland is installed in the annular cavity, and the gland is clamped with the frustum, and the gland is inserted into the externally threaded nylon sleeve.

[0007] Preferably, the threaded hole and the annular cavity are communicated with the internal threaded hole of the nut body, and the threaded hole is located between the internal threaded hole and the annular cavity of the nut body;

[0008] Preferably, a through hole is axially penetrated through the gland, and the through hole is communicated with the externally threaded nylon sleeve;

[0009] Preferably, the inner diameter of the through hole is larger than the inner diameter of the externally threaded nylon sleeve, and the inner diameter of the through hole is smaller than the diameter of the externally threaded nylon sleeve;

[0010] Preferably, the diameter of the annular cavity is larger than the diameter of the threaded hole, and the diameter of the threaded hole is larger than the inner threaded hole diameter of the nut body.

[0011] Preferably, a plurality of card slots are evenly distributed on the inner surface of the annular cavity of the frustum, and two card holes are evenly distributed and penetrate through the side of the frustum connected to the nut body, and the two card holes communicate with two corresponding card slots; the gland is snap-fitted between the card slots and the card holes.

[0012] Preferably, one end of the externally threaded nylon sleeve is provided with an integral nylon ring cover, and the nylon ring cover is located in the annular cavity, and the nylon ring cover is located between the externally threaded nylon sleeve and the gland; the inner diameter of the nylon ring cover is the same as the inner diameter of the externally threaded nylon sleeve, and the diameter of the nylon ring cover is larger than the diameter of the externally threaded nylon sleeve; a positioning hole is penetrated between the externally threaded nylon sleeve and the nylon ring cover; the gland is inserted into the positioning hole.

[0013] Preferably, a plurality of card strips corresponding to the card slots and two elastic barb clips corresponding to the card holes are evenly and fixedly installed on the outer side of the gland; the card strips are stuck in the corresponding card slots; the elastic barb clips are stuck in the corresponding card holes.

[0014] Preferably, a plurality of positioning posts corresponding to the positioning holes are evenly and fixedly installed inside the gland, and the positioning posts are inserted into the corresponding positioning holes; the outer surface of the gland is flush with the end face of the frustum.

[0015] Compared with the prior art, the advantages of the present utility model are as follows:

[0016] With the overall setting of the present utility model, during the use process, it can not only prevent the externally threaded nylon sleeve from loosening, but also facilitate the subsequent replacement of the externally threaded nylon sleeve alone. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the present utility model.

[0018] Figure 2 is the overall exploded structural schematic diagram of the present utility model.

[0019] Figure 3 is the partial exploded structural schematic diagram of the present utility model.

[0020] In the figure:

[0021] Nut body 1, frustum 2, threaded hole 3, annular cavity 4, card slot 5, card hole 6, external thread nylon sleeve 7, nylon ring cover 8, positioning hole 9, gland 10, card strip 11, elastic barb clip 12, positioning post 13, through hole 14. Detailed implementation manner

[0022] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the embodiments, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present 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 defined 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] The following further describes the present utility model with reference to the drawings:

[0025] Embodiment

[0026] Refer to Figures 1-3, A lock nut with a nylon cap, comprising a nut body 1, an externally threaded nylon sleeve 7 and a gland 10, wherein: One end of the nut body 1 is provided with an integral frustum 2, and a threaded hole 3 and an annular cavity 4 are penetrated in the frustum 2 to provide an installation space for the externally threaded nylon sleeve 7 and the gland 10, and at the same time protect the externally threaded nylon sleeve 7 and the gland 10; The externally threaded nylon sleeve 7 is fixedly installed in the threaded hole 3 by threads to ensure the stability between the externally threaded nylon sleeve 7 and the nut body 1, and at the same time facilitate the replacement of the externally threaded nylon sleeve 7 in the later stage; The gland 10 is installed in the annular cavity 4, and the gland 10 is clamped with the frustum 2, and the gland 10 is inserted with the externally threaded nylon sleeve 7 to secondarily fix the externally threaded nylon sleeve 7 through the gland 10 to prevent the externally threaded nylon sleeve 7 from loosening from the nut body 1.

[0027] A plurality of card slots 5 are evenly distributed on the inner surface of the annular cavity 4 of the frustum 2, and two card holes 6 are evenly penetrated on one side of the frustum 2 connected to the nut body 1, and the two card holes 6 communicate with two corresponding card slots 5; The gland 10 is clamped with the card slots 5 and the card holes 6; A plurality of card strips 11 corresponding to the card slots 5 and two elastic barb clips 12 corresponding to the card holes 6 are fixedly installed on the outer side of the gland 10; The card strip 11 is stuck in the corresponding card slot 5 to improve the strength between the gland 10 and the frustum 2 and prevent the gland 10 from rotating at the same time; The elastic barb clip 12 is stuck in the corresponding card hole 6 to ensure the stability between the gland 10 and the frustum 2 and prevent the gland 10 from loosening from the frustum 2.

[0028] One end of the externally threaded nylon sleeve 7 is provided with an integral nylon ring cover 8 to increase the contact area between the externally threaded nylon sleeve 7 and the gland 10 and improve the stability between the externally threaded nylon sleeve 7 and the gland 10, and the nylon ring cover 8 is in the annular cavity 4, and the nylon ring cover 8 is between the externally threaded nylon sleeve 7 and the gland 10; The inner diameter of the nylon ring cover 8 is the same as the inner diameter of the externally threaded nylon sleeve 7, and the diameter of the nylon ring cover 8 is larger than the diameter of the externally threaded nylon sleeve 7; A positioning hole 9 is penetrated between the externally threaded nylon sleeve 7 and the nylon ring cover 8; The gland 10 is inserted with the positioning hole 9.

[0029] A plurality of positioning posts 13 corresponding to the positioning holes 9 are fixedly installed inside the gland 10, and the positioning posts 13 are inserted in the corresponding positioning holes 9 to prevent the externally threaded nylon sleeve 7 from rotating in the threaded hole 3. At the same time, after being connected to the bolt, the stability between the positioning post 13 and the externally threaded nylon sleeve 7 can be improved through the extrusion force of the bolt to prevent the externally threaded nylon sleeve 7 from loosening from the gland 10; The outer surface of the gland 10 is flush with the end face of the frustum 2.

[0030] In this embodiment, when the external-thread nylon sleeve 7 needs to be replaced later, just press the elastic barb catch 12 simultaneously at the center of the frustum 2 to separate the elastic barb catch 12 from the locking hole 6, then pull out the gland 10 externally, and the gland 10 can be removed. Finally, rotate the external-thread nylon sleeve 7 counterclockwise, and the external-thread nylon sleeve 7 and the nylon ring cover 8 can be separated from the nut body 1 and replaced.

[0031] Any technical solution that uses the technical solution of the present invention or is designed by those skilled in the art under the inspiration of the technical solution of the present invention to achieve the above technical effects falls within the protection scope of the present invention.

Claims

1. A locking nut with a nylon cap, characterized in that: It includes a nut body (1), an externally threaded nylon sleeve (7) and a gland (10), wherein: One end of the nut body (1) is provided with an integral frustum (2), and a threaded hole (3) and an annular cavity (4) are penetrated through the frustum (2); The externally threaded nylon sleeve (7) is fixedly installed in the threaded hole (3) by threads; The gland (10) is installed in the annular cavity (4), and the gland (10) is clamped with the frustum (2), and the gland (10) is inserted with the externally threaded nylon sleeve (7); The threaded hole (3) and the annular cavity (4) are communicated with the internal threaded hole of the nut body (1), and the threaded hole (3) is between the internal threaded hole of the nut body (1) and the annular cavity (4); A through hole (14) is penetrated through the gland (10), and the through hole (14) is communicated with the externally threaded nylon sleeve (7); The inner diameter of the through hole (14) is larger than the inner diameter of the externally threaded nylon sleeve (7), and the inner diameter of the through hole (14) is smaller than the diameter of the externally threaded nylon sleeve (7); The diameter of the annular cavity (4) is larger than the diameter of the threaded hole (3), and the diameter of the threaded hole (3) is larger than the diameter of the internal threaded hole of the nut body (1).

2. A lock nut with a nylon cap according to claim 1, characterized in that: A plurality of clamping grooves (5) are evenly distributed on the inner surface of the annular cavity (4) of the frustum (2), and two clamping holes (6) are evenly penetrated through the side of the frustum (2) connected to the nut body (1), and the two clamping holes (6) are communicated with two corresponding clamping grooves (5); The gland (10) is clamped with the clamping grooves (5) and the clamping holes (6).

3. A lock nut with a nylon cap according to claim 2, characterized in that: One end of the externally threaded nylon sleeve (7) is provided with an integral nylon ring cover (8), and the nylon ring cover (8) is in the annular cavity (4), and the nylon ring cover (8) is between the externally threaded nylon sleeve (7) and the gland (10); The inner diameter of the nylon ring cover (8) is the same as the inner diameter of the externally threaded nylon sleeve (7), and the diameter of the nylon ring cover (8) is larger than the diameter of the externally threaded nylon sleeve (7); A positioning hole (9) is penetrated through between the externally threaded nylon sleeve (7) and the nylon ring cover (8); The gland (10) is inserted with the positioning hole (9).

4. The locknut with a nylon cap according to claim 3, wherein: A plurality of clamping strips (11) corresponding to the clamping grooves (5) and two elastic barb clips (12) corresponding to the clamping holes (6) are evenly and fixedly installed on the outer side of the gland (10); The clamping strip (11) is clamped in the corresponding clamping groove (5); The elastic barb clip (12) is clamped in the corresponding clamping hole (6).

5. A lock nut with a nylon cap as claimed in claim 4, wherein: A plurality of positioning columns (13) corresponding to the positioning holes (9) are evenly and fixedly installed inside the gland (10), and the positioning columns (13) are inserted in the corresponding positioning holes (9); The outer surface of the gland (10) is flush with the end surface of the frustum (2).

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