Large-specification locking nut

Abstract

The utility model provides a large-specification locking nut which comprises a locking nut body, locking groove bodies and nut locking pieces, the locking nut body is provided with at least three locking groove bodies, and each locking groove body is internally provided with one nut locking piece. According to the large-specification locking nut, through the multi-point locking design, the locking effect is remarkably enhanced, the anti-loosening effect is remarkable especially in the high-torque and vibration environment, stable and safe connection is guaranteed, the nut locking piece is simple in structure and convenient and fast to mount and dismount, a standard tool can be conveniently used for screwing down through the inner hexagonal groove, and the working efficiency is improved; the meshing body is tightly meshed with the locking sleeve, the stability is enhanced through the clamping and embedding design, and it is ensured that the locking effect is excellent.

Description

Technical Field

[0001] The utility model belongs to the technical field of locking nuts, and in particular relates to a large-size locking nut. Background Art

[0002] In the field of mechanical connection, traditional nuts often fail to meet the requirements, especially in situations where high tightening force and anti-seismic performance are required. In the fields of heavy equipment, bridge structures, aerospace, and precision machinery, stricter standards are put forward for the locking performance of connectors. Although the existing locking nut design improves the stability of the connection to a certain extent, it may still become loose in extreme working conditions or after long-term use, resulting in safety hazards.

[0003] Common locking nuts usually rely on a single locking mechanism, such as friction locking or wedge locking, which may affect the locking effect under complex and changing working conditions. Especially in large-scale application scenarios, such as the connection parts of heavy machinery, traditional locking nuts are difficult to provide long-lasting and reliable locking force. In addition, the structural design of traditional locking nuts is often simple, lacking multi-level locking protection, and the installation and disassembly process is cumbersome and not convenient for quick maintenance. Especially in situations where frequent disassembly and reassembly are required, traditional designs are particularly inconvenient.

[0004] Therefore, it is very necessary to invent a large-size locking nut. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a large-size locking nut, including a locking nut body, a locking groove body and a nut locking piece, wherein at least three locking groove bodies are arranged on the locking nut body, and the nut locking piece is installed in each locking groove body;

[0006] The nut locking member includes a tightening head, a locking rod, a locking head, a hexagonal groove, a bite body and a locking sleeve. The tightening head is slidably installed in the locking groove body. The two ends of the locking rod are respectively rotatably connected to the tightening head and fixedly connected to the locking head. The locking head is provided with a hexagonal groove and a plurality of the bite bodies are provided on the outer surface. The locking sleeve is inserted into the outside of the locking head; the locking sleeve is embedded in the locking groove body, and the locking rod is threadedly engaged and installed in the locking groove body.

[0007] Preferably, the tightening head is provided with a thread matching the internal thread of the inner diameter of the locking nut body, and the tightening head is distributed at the inner diameter of the locking nut body.

[0008] Preferably, the locking groove body is a groove body composed of three parts: an upper groove, a middle groove, and a lower groove. The tightening head is arranged in the lower groove part of the locking groove body, the locking rod is threadedly engaged and installed in the middle groove part of the locking groove body, and the locking head is arranged in the upper groove part of the locking groove body.

[0009] Preferably, the engaging bodies distributed on the outer surface of the locking head are triangular structures, the inner ring of the locking sleeve is provided with protrusions engaging with the engaging bodies, the engaging bodies are embedded in the upper groove part of the locking groove body, and the engaging bodies are hexagonal structures.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model realizes multi-point locking and significantly improves the locking effect by providing at least three locking grooves on the locking nut body and installing a nut locking piece in each locking groove. Especially in high torque and vibration environments, it can effectively prevent the nut from loosening and ensure the stability and safety of the connection. The design of the nut locking piece is concise and clear, which not only ensures the realization of the locking function, but also facilitates installation and disassembly. The setting of the hexagonal groove allows the locking piece to be easily tightened with standard tools, thereby improving work efficiency. The bite body on the locking head adopts a triangular structure, which is tightly engaged with the protrusion in the locking sleeve, and the card-embedded design of the bite body in the locking groove further enhances the locking stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model.

[0014] Figure 3 It is a schematic diagram of the disassembled structure of the nut locking piece of the utility model.

[0015] In the figure:

[0016] Locking nut body 1, locking groove body 2, nut locking piece 3, tightening head 31, locking rod 32, locking head 33, hexagonal groove 34, bite body 35, locking sleeve 36. DETAILED DESCRIPTION

[0017] 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.

[0018] 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.

[0019] As attached Figure 1 To Attachment Figure 3 As shown:

[0020] The utility model provides a large-size locking nut, comprising a locking nut body 1, a locking groove body 2 and a nut locking piece 3. At least three locking groove bodies 2 are arranged on the locking nut body 1, and the nut locking piece 3 is installed in each of the locking groove bodies 2.

[0021] The nut locking member 3 includes a tightening head 31, a locking rod 32, a locking head 33, a hexagonal groove 34, an engaging body 35 and a locking sleeve 36. The tightening head 31 is slidably installed in the locking groove body 2. The two ends of the locking rod 32 are respectively rotatably connected to the tightening head 31 and fixedly connected to the locking head 33. The locking head 33 is provided with a hexagonal groove 34, and a plurality of engaging bodies 35 are provided on the outer surface. The locking sleeve 36 is inserted into the outside of the locking head 33; the locking sleeve 36 is embedded in the locking groove body 2, and the locking rod 32 is threadedly installed in the locking groove body 2.

[0022] Embodiment 1:

[0023] Specifically, the tightening head 31 is designed to have a thread that matches the inner thread of the inner diameter of the locking nut body 1. This design allows the tightening head 31 to be closely distributed at the inner diameter of the locking nut body 1, achieving preliminary fixation and positioning. After the locking nut is tightened, the nut locking member 3 is twisted by a tool, so that the tightening head 31 gradually goes deeper, further enhancing the connection strength with the locking nut body 1.

[0024] Specifically, the locking groove body 2 is a groove body composed of three parts: an upper groove, a middle groove, and a lower groove. The tightening head 31 is cleverly arranged in the lower groove part. This position enables the locking head to provide stable support for the locking rod 32 without interfering with the normal rotation of the nut body. The locking rod 32 is installed in the middle groove part by threaded engagement. This installation method not only ensures the stability and reliability of the locking rod, but also facilitates the adjustment of the position of the locking head by rotating the locking rod, thereby achieving fine-tuning of the locking effect. The locking head 33 and the bite body 35 are arranged in the upper groove part. The design of the upper groove part provides sufficient space for the bite body 35 to bite with the protrusion in the locking sleeve 36, thereby further enhancing the locking effect.

[0025] Specifically, the engaging body 35 distributed on the outer surface of the locking head 33 adopts a triangular structure, which has excellent engaging performance and anti-slip ability. The inner ring of the locking sleeve 36 is provided with a protrusion matching the engaging body 35. When the locking sleeve 36 is inserted into the locking head 33, the engaging body 35 is inserted into the upper groove part of the locking groove body 2 and tightly engages with the protrusion in the locking sleeve 36.

[0026] Embodiment 2:

[0027] First, at least three locking grooves 2 are arranged on the locking nut body 1, and each locking groove 2 is composed of three parts: an upper groove, a middle groove, and a lower groove. The tightening head 31 is slidably installed in the lower groove part, ensuring that it matches the inner diameter and inner thread of the locking nut body 1 to achieve preliminary fixation. The two ends of the locking rod 32 are respectively connected to the tightening head 31 for rotation, and are fixedly connected to the locking head 33, and then the locking rod 32 is threadedly engaged and installed in the middle groove part. As needed, the position of the tightening head 31 in the locking groove 2 is adjusted by rotating the locking rod 32 to achieve the desired locking effect. Subsequently, the locking sleeve 36 is clamped on the outside of the locking head 33, and ensured that it is clamped in the upper groove part of the locking groove 2. At this time, the protrusion in the locking sleeve 36 is tightly engaged with the bite body 35 on the outer surface of the locking head 33. The locking nut body 1 is tightened continuously using a tool to further penetrate the tightening head 31 , while ensuring that the locking sleeve 36 and the engaging body 35 are more tightly engaged, thereby achieving an efficient and reliable locking effect.

[0028] 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 large-size locking nut, characterized in that: The invention comprises a locking nut body (1), a locking groove body (2) and a nut locking member (3), wherein at least three locking groove bodies (2) are arranged on the locking nut body (1), and each locking groove body (2) is installed with the nut locking member (3); The nut locking member (3) comprises a tightening head (31), a locking rod (32), a locking head (33), an inner hexagonal groove (34), an engaging body (35) and a locking sleeve (36); the tightening head (31) is slidably mounted in the locking groove body (2); the two ends of the locking rod (32) are respectively rotatably connected to the tightening head (31) and fixedly connected to the locking head (33); the locking head (33) is provided with an inner hexagonal groove (34) and a plurality of engaging bodies (35) are arranged on the outer surface; the locking sleeve (36) is clamped on the outside of the locking head (33); the locking sleeve (36) is clamped in the locking groove body (2); the locking rod (32) is threadedly mounted in the locking groove body (2).

2. A large-size locking nut according to claim 1, characterized in that: The tightening head (31) is provided with a thread matching the internal thread of the inner diameter of the locking nut body (1), and the tightening head (31) is distributed at the inner diameter of the locking nut body (1).

3. A large-size locking nut according to claim 2, characterized in that: The locking groove body (2) is composed of an upper groove, a middle groove, and a lower groove. The tightening head (31) is arranged in the lower groove part of the locking groove body (2), the locking rod (32) is threadedly engaged and installed in the middle groove part of the locking groove body (2), and the locking head (33) is arranged in the upper groove part of the locking groove body (2).

4. A large-size locking nut according to claim 3, characterized in that: The engaging bodies (35) distributed on the outer surface of the locking head (33) are triangular in structure, the inner ring of the locking sleeve (36) is provided with protrusions engaging with the engaging bodies (35), the engaging bodies (35) are embedded in the upper groove part of the locking groove body (2), and the engaging bodies (35) are hexagonal in structure.

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