Quick disassembly and assembly nut capable of limiting torsion

Abstract

The utility model relates to the technical field of nuts, and discloses a quick dismounting nut capable of limiting torsion, which comprises a nut main body, an outer hexagonal structure is arranged on the outer wall of the nut main body, a tool can be conveniently used for operation, a first through groove is arranged at the upper end of the nut main body, an adjusting screw rod is arranged on the inner side of the first through groove, and the adjusting screw rod is connected with the nut main body. An adjusting screw rod is arranged in the nut body and penetrates through an adjusting sliding block, a torsion spring is arranged on the periphery of the nut body, the lower end of the torsion spring is fixedly connected with the adjusting sliding block, threads matched with the adjusting screw rod are arranged in the adjusting sliding block, and a limiting block is arranged at the lower end of the adjusting screw rod. According to the quick disassembly and assembly nut capable of limiting the torsion, through cooperation of the adjusting screw rod and the torsion spring, the torsion when the nut is screwed down can be accurately set according to actual requirements, the torsion value is clear at a glance through arrangement of the dial, the problem that the torsion is too large or too small is effectively avoided, and the reliability and safety of connection are improved.

Description

Technical Field

[0001] This utility model relates to the field of nut technology, specifically a quick-release nut with limited torque. Background Technology

[0002] A nut, also known as a bolt or screw, is a tool used for fastening. It has a hole in the center with threads on the inside. It is often used in conjunction with a screw of the same size to secure the joint. Nuts are screwed together with bolts or screws to fasten the parts. They are an essential component in all manufacturing machinery. Depending on the material, nuts are divided into several types, such as carbon steel, stainless steel, and non-ferrous metals. Nuts are mostly hexagonal, followed by square.

[0003] The prior art patent document CN211288404U discloses a nut. This utility model provides the following technical solution: A nut includes a first nut, with a second nut fixed inside the first nut. Both the first and second nuts have a first hole on their inner sides. The inner wall of the first hole has a first internal thread, and a bolt is connected to the internal thread of the first internal thread. The top and bottom of the first internal thread each have a first through groove, and the bottom of one set of the first through grooves has a first groove. A second hole and a second through groove are respectively provided on both sides of one set of the first through grooves, and a second groove is provided on both sides of the second through groove. The inner side of the second hole has a second internal thread. A stud that mates with the first through groove is provided below both the first and second nuts. The inner side of the stud has a first hole. The first nut has two internal threads that engage with each other, and screws that engage with the second internal threads are provided on both sides of the first nut. The stud is detachably connected to the first nut and the second nut through the engagement of the screws and the second internal threads. The surface of the bolt is evenly provided with multiple sets of first locking holes, and the first locking holes and the first through grooves are correspondingly engaged. The diameters of the two sets of first holes are the same. The first nut and the second nut form a cavity. Compared with the prior art, the beneficial effects of this utility model are: This utility model fixes the first nut and the second nut to the bolt by combining the first nut and the second nut. Through the engagement of the stud with the first locking hole and the first through groove, and the engagement of the screw with the second locking hole and the second locking hole, the screw is fixed with the second internal thread. The first nut and the second nut are then fixed to the bolt, thereby improving the bolt fixing effect.

[0004] In practical use, a type of nut in the existing technology is prone to problems such as excessive torque leading to damage to parts or insufficient torque leading to an unstable connection. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a quick-release nut with a limitable torque to solve the problem of inconvenience in limiting torque mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a quick-release nut with limited torque, comprising a nut body, wherein the outer wall of the nut body is provided with an external hexagonal structure for easy operation with tools, the upper end of the nut body is provided with a first through groove, an adjusting screw is provided inside the first through groove, the adjusting screw passes through an adjusting slider, a torsion spring is provided on the outer periphery of the nut body, the lower end of the torsion spring is fixedly connected to the adjusting slider, the adjusting slider is provided with a thread adapted to the adjusting screw, a limit block is provided at the lower end of the adjusting screw, and a rotating handle is provided at the upper end of the adjusting screw;

[0009] A dial is provided on the left side of the first slot, and a radial groove is provided on the side of the nut body. A movable locking block is provided inside the groove. A pressing handle is provided on the right side of the movable locking block, and an inclined guide surface is provided on the left side of the movable locking block. The position of the adjusting slider can be changed by rotating the adjusting screw, thereby changing the preload of the torsion spring. The dial is located on the side of the nut body, corresponding to the adjusting screw. Different torque values ​​are marked on the dial to indicate the torque value corresponding to the current preload of the torsion spring.

[0010] Preferably, a bolt is provided inside the nut body.

[0011] Preferably, the bolt has external threads on its outer side.

[0012] Preferably, the upper end of the nut body is provided with a second through groove.

[0013] Preferably, the inner side of the second through groove is provided with an internal thread, and the surface of the internal thread is provided with an anti-slip coating to increase the friction between the nut and the bolt and prevent loosening. The torsion spring is made of high-strength alloy material, which has good elasticity and fatigue life. The end of the adjusting screw is provided with a rotating handle for easy operation by the user. The engaging end of the movable locking block is provided with an inclined guide surface to facilitate the locking block to smoothly engage with the groove of the bolt.

[0014] Preferably, the surface of the nut body is coated with an epoxy zinc-rich primer.

[0015] Preferably, the outer side of the epoxy zinc-rich primer is provided with a molybdenum disulfide coating.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This quick-release nut with adjustable torque allows for precise setting of the torque when tightening the nut according to actual needs through the cooperation of the adjusting screw and the torque spring. The dial makes the torque value clear at a glance, effectively avoiding the problem of excessive or insufficient torque, and improving the reliability and safety of the connection.

[0018] 2. This quick-release nut with limited torque can be easily unscrewed from the bolt by pressing the handle to disengage the movable block from the corresponding groove on the bolt; during installation, after screwing the nut into the appropriate position on the bolt, release the handle, and the movable block will automatically engage with the groove on the bolt under the action of the spring, achieving quick installation and positioning.

[0019] 3. This quick-release nut with limited torque has a reasonable overall structure design and tight fit between its components. While achieving the functions of limited torque and quick disassembly, it also ensures the simplicity of the nut structure, reducing production costs and manufacturing difficulty. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the movable card block of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the nut body of this utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the epoxy zinc-rich primer of this utility model.

[0024] In the diagram: 1. Nut body; 2. External hexagonal structure; 3. First through slot; 4. Adjusting screw; 5. Adjusting slider; 6. Torsion spring; 7. Limiting block; 8. Rotating handle; 9. Dial; 10. Slot; 11. Movable locking block; 12. Inclined guide surface; 13. Press handle; 14. Bolt; 15. External thread; 16. Second through slot; 17. Internal thread; 18. Epoxy zinc-rich primer; 19. Molybdenum disulfide coating. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a quick-release nut with limited torque, including a nut body 1, an external hexagonal structure 2 on the outer wall of the nut body 1 for easy operation with tools, a first through groove 3 at the upper end of the nut body 1, an adjusting screw 4 inside the first through groove 3, the adjusting screw 4 passing through an adjusting slider 5, a torsion spring 6 on the outer periphery of the nut body 1, the lower end of the torsion spring 6 being fixedly connected to the adjusting slider 5, the adjusting slider 5 having a thread adapted to the adjusting screw 4 inside, a limit block 7 at the lower end of the adjusting screw 4, and a rotating handle 8 at the upper end of the adjusting screw 4;

[0027] A dial 9 is provided on the left side of the first through groove 3, and a radial groove 10 is provided on the side of the nut body 1. A movable locking block 11 is provided inside the groove 10. A pressing handle 13 is provided on the right side of the movable locking block 11, and an inclined guide surface 12 is provided on the left side of the movable locking block 11.

[0028] The nut body 1 has a bolt 14 inside, and an external thread 15 on the outside of the bolt 14. The upper end of the nut body 1 has a second through groove 16. By rotating the rotating handle 8 at the end of the adjusting screw 4, the position of the slider 5 can be adjusted, thereby changing the preload of the torsion spring 6. The scale 9 is located on the side of the nut body 1, corresponding to the adjusting screw 4. Different torque values ​​are marked on the scale 9 to indicate the torque value corresponding to the current preload of the torsion spring 6. The torsion spring 6 is made of high-strength alloy material to ensure its stable performance.

[0029] The inner side of the second through groove 16 is provided with an internal thread 17, and the surface of the nut body 1 is provided with an epoxy zinc-rich primer 18. The outer side of the epoxy zinc-rich primer 18 is provided with a molybdenum disulfide coating 19. The epoxy zinc-rich primer is used as a rust-proof base, and the molybdenum disulfide coating is applied to provide lubrication. The epoxy zinc-rich primer can effectively prevent the nut from rusting, and the molybdenum disulfide coating can reduce friction. This combination can prevent the nut and bolt from rusting in humid environments and make installation and disassembly easy and smooth.

[0030] Working principle: When a quick-release nut with limited torque is required, the torsion spring 6 is sleeved on the outer periphery of the nut body 1, with one end fixedly connected to the nut body 1 and the other end connected to the adjusting slider 5; the adjusting screw 4 passes through the side wall of the nut body 1 and is threadedly connected to the adjusting slider 5. By rotating the rotating handle 8 at the end of the adjusting screw 4, the position of the slider 5 can be adjusted, thereby changing the preload of the torsion spring 6; the scale 9 is set on the side of the nut body 1, corresponding to the adjusting screw 4, and different torque values ​​are marked on the scale 9 to indicate the torque value corresponding to the current preload of the torsion spring 6. The torsion spring 6 adopts... Made of high-strength alloy material to ensure stable performance, the nut body 1 has a radial groove 10 on its side, and a movable locking block 11 is set in the groove 10, which can slide radially. The engaging end of the movable locking block 11 has an inclined guide surface 12 to facilitate engagement with the groove of the bolt 14. The pressing handle 13 is connected to the movable locking block 11, with one end extending outside the nut body 1. When disassembling, pressing the pressing handle 13 will disengage the movable locking block 11 from the groove of the bolt 14, allowing the nut to be unscrewed. When installing, after screwing on the nut, releasing the pressing handle 13 will cause the movable locking block 11 to automatically engage with the groove of the bolt 14 under the action of the spring, completing the quick installation.

[0031] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A quick release nut capable of defining a torque, comprising a nut body (1), characterized in that: The outer wall of the nut body (1) is provided with an outer hexagonal structure (2), which facilitates the operation of the tool, the upper end of the nut body (1) is provided with a first through slot (3), the inner side of the first through slot (3) is provided with an adjusting screw (4), the adjusting screw (4) passes through an adjusting slider (5), the outer periphery of the nut body (1) is provided with a torsion spring (6), the lower end of the torsion spring (6) is fixedly connected with the adjusting slider (5), the inside of the adjusting slider (5) is provided with a thread matched with the adjusting screw (4), the lower end of the adjusting screw (4) is provided with a limiting block (7), and the upper end of the adjusting screw (4) is provided with a rotating handle (8); The left side of the first through slot (3) is provided with a scale disc (9), a radial clamping groove (10) is formed in the side surface of the nut body (1), the inside of the clamping groove (10) is provided with a movable clamping block (11), the right side of the movable clamping block (11) is provided with a pressing handle (13), and the left side of the movable clamping block (11) is provided with an inclined guide surface (12).

2. The quick release nut of claim 1, wherein: The inside of the nut body (1) is provided with a bolt (14).

3. A twist-limiting quick release nut according to claim 2, wherein: The outer side of the bolt (14) is provided with an external thread (15).

4. The twist-limiting quick release nut of claim 3, wherein: The upper end of the nut body (1) is provided with a second through slot (16).

5. A twist-limiting quick release nut according to claim 4, wherein: The inner side of the second through slot (16) is provided with an internal thread (17).

6. A twist-limiting quick release nut according to claim 5, wherein: The surface of the nut body (1) is provided with an epoxy zinc-rich primer (18).

7. A twist-limiting quick release nut according to claim 6, wherein: The outer side of the epoxy zinc-rich primer (18) is provided with a molybdenum disulfide coating (19).

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