Labyrinth type groove cutting check nut with positioning holes

Abstract

The utility model relates to the technical field of nuts, and discloses a labyrinth type slotting check nut with a positioning hole, which comprises a nut body, a conical anti-skidding base arranged at the lower end of the nut body, anti-skidding ripples A arranged on the top surface of the nut body, anti-skidding ripples B arranged on the bottom surface of the conical anti-skidding base, and the positioning hole arranged on the nut body. Inner threaded holes are formed in the middle of the nut body and the middle of the conical anti-skid base, and a labyrinth type cutting groove is formed in the surface of the conical anti-skid base. The labyrinth type cutting groove enables the internal thread of the nut to be matched with the bolt to increase the biting torque, effective locking is achieved, the anti-loosening and anti-theft functions are achieved, and the service life can be prolonged. The positioning holes can achieve accurate positioning, assembly alignment is ensured, the nut is prevented from loosening due to vibration or load change, and stability is improved. The conical circular truncated cone structure of the conical anti-skid base increases the contact area and improves friction force, the anti-skid ripples further improve the anti-skid performance, and it is guaranteed that the nut and the bolt are fastened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to nut technical field, concretely relates to a labyrinth type slotting with positioning hole loose nut. BACKGROUND

[0002] In the field of mechanical fasteners, nuts are an important component of connecting parts, and their performance directly affects the reliability and safety of the entire connecting system. With the continuous development of industrial technology, the performance requirements for nuts are becoming higher and higher, especially in machinery and equipment that require high strength and high reliability connections, traditional nuts have been difficult to meet all needs. Therefore, the development of nuts with special functions, such as slotting nuts, has become a key to improving the performance of the connecting system.

[0003] Slotting nuts increase the friction and locking force between the nut and the bolt by setting a specific slot structure on the nut, thereby achieving a more secure connection. This design allows slotting nuts to maintain a stable connection state when subjected to high loads and strong impacts, avoiding loosening and falling phenomena. Slotting nuts have been widely used in many fields due to their excellent locking effect and vibration resistance. How to further optimize the structural design of slotting nuts to improve their adaptability and reliability in different application environments remains a technical problem to be solved. SUMMARY

[0004] The present invention aims to solve the technical problem of the existing technology that nuts are difficult to meet the high strength and high reliability connection requirements.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A labyrinth type slotting with positioning hole loose nut, comprising a nut body, a tapered anti-skid base is provided at the lower end of the nut body, an anti-skid corrugation A is provided on the top surface of the nut body, an anti-skid corrugation B is provided on the bottom surface of the tapered anti-skid base, a positioning hole is provided on the nut body, an internal thread hole is provided in the middle of the nut body and the tapered anti-skid base, and a labyrinth type slot is provided on the surface of the tapered anti-skid base.

[0007] As a preferred embodiment, the tapered anti-skid base includes but is not limited to a tapered circular truncated cone structure, and can also include other variable cross-section circular truncated cone structures, such as converging-expanding circular truncated cone structures.

[0008] As a preferred embodiment, the positioning hole on the nut body is provided with three positioning holes and is distributed in a regular triangle, and the hole depth of the positioning hole and the height of the nut body are consistent.

[0009] As a preferred embodiment, the anti-skid corrugation A and the anti-skid corrugation B include but are not limited to equidistant vertical corrugation and equidistant curved corrugation, and can also include other structural corrugation, such as wedge-shaped corrugation.

[0010] As preferred, the labyrinth type cutting groove of the conical anti-skid base surface is provided with 6 layers, the height of each layer of the labyrinth type cutting groove is 1-2 times of the pitch, the adjacent labyrinth type cutting grooves are connected through vertical grooves to form a labyrinth type structure, and the number of groove layers and the position of the vertical grooves are not limited.

[0011] As preferred, the nut body is a hexagonal nut.

[0012] Compared with the prior art, the technical effects and advantages of the utility model are that: the labyrinth type cutting groove with positioning hole locking nut comprises a nut body and a conical anti-skid base located below the nut body, the top surface of the nut body and the bottom surface of the conical anti-skid base are respectively provided with anti-skid corrugations A and B, the nut body has a positioning hole, the top surface of the nut body and the middle part of the conical anti-skid base are both provided with internal thread holes, and the surface of the conical anti-skid base has a labyrinth type cutting groove. When installed, the labyrinth type cutting groove on the conical anti-skid base makes the internal thread hole of the nut displace on the pitch, increases the bite torque after cooperating with the bolt thread, realizes effective locking, has the functions of locking and anti-theft, and prolongs the service life; the positioning hole provides a precise positioning reference for the nut, ensures accurate alignment during assembly, can also prevent the nut from loosening when vibrating or the load changes, and improves stability and reliability; the conical frustum structure of the conical anti-skid base increases the contact area with the installation surface, improves the friction force, and enhances the fastening effect.

[0013] The design of the anti-skid corrugation further improves the anti-skid effect of the nut, and different structures of the corrugation, such as equidistant vertical corrugation, equidistant curved corrugation, wedge-shaped corrugation and the like, ensure the fastening of the nut and the bolt after being fixed. These design features optimize the performance of the nut from multiple aspects, comprehensively improve the adaptability and reliability of the nut under various working conditions, and make it better meet the strict requirements of modern industry on mechanical connection. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a front view of the utility model;

[0016] Figure 3 It is a side view of the utility model;

[0017] Figure 4 It is a top view of the utility model;

[0018] Figure 5 It is a bottom view of the utility model.

[0019] In the drawing: 1, positioning hole; 2, nut body; 3, conical anti-skid base; 4, anti-skid corrugation B; 5, internal thread hole; 6, anti-skid corrugation A; 7, labyrinth type cutting groove; 8, vertical groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of the utility model.

[0021] The following will be combined Figures 1 to 5 The application will be further described in detail,

[0022] The embodiment of the application discloses a labyrinth type cutting groove with positioning hole loose nut, including nut body 2 and conical anti-skid base 3, conical anti-skid base 3 is located at the lower end of nut body 2, nut body 2 is hexagonal nut, conical anti-skid base 3 includes but is not limited to conical circular truncated cone structure, and can also include other variable cross-section type circular truncated cone structures, such as converging-expanding type circular truncated cone structure.

[0023] The conical anti-skid base 3 includes a plurality of variable cross-section type circular truncated cone structures, such as conical circular truncated cone structure, converging-expanding type circular truncated cone structure and the like. Different structures can adapt to different installation environments and needs. For example, the converging-expanding type circular truncated cone structure can better fit the installation surface in some special mechanical structures, provide more stable support, and increase the application range of the nut.

[0024] Compared with the traditional nut, the conical anti-skid base 3 increases the contact area with the installation surface. According to the calculation formula of friction force F = μN (where F is the friction force, μ is the friction coefficient, and N is the normal pressure), under the condition that the normal pressure is certain, the increase of the contact area can make the friction force more uniform, thereby effectively improving the friction force and enhancing the fastening effect of the nut to prevent the nut from loosening.

[0025] The top surface of the nut body 2 is provided with anti-skid corrugation A6, and the bottom surface of the conical anti-skid base 3 is provided with anti-skid corrugation B4. The anti-skid corrugation A6 and the anti-skid corrugation B4 include but are not limited to equidistant vertical corrugation, equidistant curved corrugation, and can also include other structure corrugation, such as wedge-shaped corrugation.

[0026] The anti-skid corrugation A6 on the top surface of the nut body 2 and the anti-skid corrugation B4 on the bottom surface of the conical anti-skid base 3 adopt a plurality of structures, such as equidistant vertical corrugation, equidistant curved corrugation, wedge-shaped corrugation and the like. These corrugation structures can increase the roughness between the nut and the contact surface (such as the surface of the connected part or the surface of the washer), thereby increasing the friction force. When the nut is subjected to vibration or external force, the anti-skid corrugation can effectively prevent the rotation and displacement of the nut, and ensure the fastening of the nut after being fixed with the bolt.

[0027] Different structures of corrugations can disperse pressure over a larger area. For example, wedge-shaped corrugations can disperse pressure along the inclined surface of the wedge when under stress, avoiding excessive local pressure that can damage the contact surface and prolonging the service life of the nut and the connected components.

[0028] The nut body 2 is provided with positioning holes 1, and the positioning holes 1 on the nut body 2 are provided with three and are distributed in a regular triangle. The hole depth of the positioning holes 1 is consistent with the height of the nut body 2.

[0029] The nut body 2 is provided with three positioning holes 1 that are distributed in a regular triangle and have a hole depth consistent with the height of the nut body 2, providing a precise positioning reference for the installation of the nut. During assembly, workers can use the positioning holes 1 in cooperation with positioning pins or other positioning devices to quickly and accurately install the nut to the specified position, improving assembly efficiency and accuracy.

[0030] After the nut is tightened, a positioner can be installed in the positioning hole 1. The positioner can limit the rotation and movement of the nut, especially in vibration or load changing working conditions, effectively preventing the nut from loosening and significantly improving the overall stability and reliability of the nut.

[0031] The nut body 2 and the middle part of the conical anti-skid base 3 are provided with internal threaded holes 5, and the surface of the conical anti-skid base 3 is provided with a labyrinth type slot 7. The labyrinth type slot 7 on the surface of the conical anti-skid base 3 is provided with 6 layers, and the height of each layer of the labyrinth type slot 7 is 1-2 times the pitch. Adjacent labyrinth type slots 7 are connected by vertical slots 8, thereby forming a labyrinth type structure, including but not limited to the number of slot layers and the position of the vertical slot 8, which should be regarded as a labyrinth type slot.

[0032] When the labyrinth type slot 7 with the positioning hole 1 is tightened on the screw, due to the existence of the labyrinth type slot 7, the slot will deform during tightening. This deformation makes the thread fit between the nut and the bolt more tightly, increasing the engagement torque, thereby achieving a self-locking function. Even when subjected to external forces such as vibration and impact, the nut is not easy to loosen and fall off, improving the reliability of the connection.

[0033] The multi-layer structure of the labyrinth type slot 7 and the labyrinth type structure formed by the connection of the vertical slot 8 can to some extent buffer and absorb vibration energy. When the nut is subjected to vibration, the deformation and interaction of the slot can consume part of the vibration energy, reducing the impact of vibration on the nut and the connection system, further enhancing the anti-vibration performance of the nut.

[0034] In specific implementation, the labyrinth type cutting groove with positioning hole check nut of the utility model is screwed on the screw rod, one end of the conical anti-skid base 3 is directed to the outside of the screw rod, after being screwed, the labyrinth type cutting groove 7 will be deformed due to the labyrinth type cutting groove 7, the check nut is locked, namely, the self-locking function is achieved, the check nut is not easy to fall off, meanwhile, the positioning hole 1 is arranged on the surface of the nut body 2, the positioner is installed after being locked, the fastening property of the nut and the bolt after being fixed is further improved.

[0035] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A labyrinth-type grooved nut with positioning holes for locking loosening, comprising a nut body (2), characterized in that: The lower end of the nut body (2) is provided with a conical anti-slip base (3), the top surface of the nut body (2) is provided with anti-slip ripples A (6), the bottom surface of the conical anti-slip base (3) is provided with anti-slip ripples B (4), the nut body (2) is provided with a positioning hole (1), the middle part of the nut body (2) and the conical anti-slip base (3) is provided with an internal thread hole (5), and the surface of the conical anti-slip base (3) is provided with a labyrinth-shaped groove (7).

2. The labyrinth-type grooved nut with positioning holes according to claim 1, characterized in that: The conical anti-slip base (3) includes, but is not limited to, a conical frustum structure.

3. The labyrinth-type grooved nut with positioning holes according to claim 1, characterized in that: The nut body (2) has three positioning holes (1) arranged in an equilateral triangle. The depth of the positioning holes (1) is consistent with the height of the nut body (2).

4. The labyrinth-type grooved nut with positioning hole as described in claim 1, characterized in that: Anti-slip ripples A(6) and anti-slip ripples B(4) include, but are not limited to, equidistant vertical ripples and equidistant curved ripples.

5. A labyrinth-type grooved nut with positioning holes for locking loosening, as described in claim 1, characterized in that: The surface of the conical anti-slip base (3) has 6 layers of maze-shaped grooves (7). The height of each layer of maze-shaped grooves (7) is 1-2 times the pitch. Adjacent maze-shaped grooves (7) are connected vertically by vertical grooves (8) to form a maze-shaped structure.

6. A labyrinth-type grooved nut with positioning holes for locking loosening, as described in claim 1, characterized in that: The nut body (2) is a hexagonal nut.

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