Anti-dismounting nut

Abstract

The anti-dismounting nut comprises a nut body, a bolt is movably connected into the nut body in a sleeved mode, a threaded block is connected to the top end of the bolt in a threaded mode, rotating shafts are symmetrically connected to the two sides of the threaded block in an embedded mode, special-shaped rods are rotationally connected to the surfaces of the rotating shafts, and limiting rings are fixedly connected to one sides of the special-shaped rods. After the nut main body is in threaded connection with the surface of the screw rod and is fixed, the bolt is screwed, so that the threaded block performs threaded movement on the surface of the bolt, the rotating shaft is driven to move, then the special-shaped rod is driven, the special-shaped rod rotates with the movable shaft as the circle center, and the limiting ring is driven to rotate; due to the fact that the limiting ring is spiral, the limiting ring can be better attached to the surface of the screw rod, the limiting stability is improved, the screw rod is limited and clamped, the good fixing effect is achieved, the situation that the nut body slides reversely due to vibration or external force can be effectively avoided through limiting and clamping, and the anti-dismounting effect is effectively achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to an anti-disassembly nut. Background Art

[0002] A nut is a cap that tightly connects mechanical equipment. Nuts and bolts of the same specifications can be connected together through the inner thread. Nuts are screwed together with bolts or screws to act as fasteners. It is a component that must be used in all manufacturing machinery. According to the different materials, it is divided into several major types such as carbon steel, stainless steel, and non-ferrous metals.

[0003] However, when the anti-disassembly nut of the above structure is used and is screwed, since the nut is fixed by screwing in conjunction with the bolt or screw, and there needs to be a certain distance between the nut and the bolt or screw after they are screwed, the force bearing area after the nut and the bolt or screw come into contact is uneven, which will cause force deviation and is not conducive to stability. At the same time, after the nut and the bolt or screw are fixed, vibration or external force will cause the connection to loosen, and it cannot be prevented that the nut will move in the reverse thread. Utility Model Content

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide an anti-disassembly nut. When the nut is screwed, the nut is fixed by screwing with the bolt or screw. However, there needs to be a certain distance between the nut and the bolt or screw after they are screwed. Therefore, if the force area after the nut and the bolt or screw come into contact is uneven, it will cause the force to shift, which is not conducive to stability. At the same time, after the nut and the bolt or screw are fixed, vibration or external force will cause the connection to loosen, and it cannot be prevented that the nut will move in the reverse thread.

[0005] In order to achieve the above-mentioned purpose, an anti-disassembly nut is provided, including a nut body, a bolt is movably sleeved inside the nut body, and a threaded block is threadedly connected to the top of the bolt, a rotating shaft is symmetrically embedded and connected on both sides of the threaded block, and a special-shaped rod is rotatably connected to the surface of the rotating shaft, one side of the special-shaped rod is fixedly connected to a limiting ring, and one side of the special-shaped rod is rotatably connected to a movable shaft, and the movable shaft is installed inside the nut body.

[0006] When the nut body is threadedly connected to the surface of the screw and fixed, the bolt is turned, so that the threaded block moves on the surface of the bolt, thereby driving the rotating shaft to move, and then driving the special-shaped rod, so that the special-shaped rod rotates with the movable axis as the center, driving the limit ring to rotate. After the limit ring is pushed, the limit ring can better fit the surface of the screw due to its spiral shape, thereby improving the stability of the limit, thereby limiting and clamping the screw, playing a good fixing role. The limit clamping can effectively prevent the reverse sliding of the nut body caused by vibration or external force, and effectively plays a role in preventing unloading.

[0007] According to the anti-disassembly nut, the limiting ring is spiral-shaped.

[0008] According to the anti-disassembly nut, a through slot is formed on the outer wall of the special-shaped rod, and the rotating shaft is movably sleeved inside the through slot.

[0009] According to the anti-disassembly nut, a slot is provided on one side of the nut body, and a clamping block is movably sleeved inside the slot, and the clamping block is fixed on one side of the gasket.

[0010] According to the anti-disassembly nut, a limiting groove is provided on the other side of the gasket, and a movable rod is movably sleeved inside the limiting groove, and a movable block is fixedly connected to the top end of the movable rod.

[0011] According to the anti-disassembly nut, the movable block is symmetrically fixedly connected with sliders on both sides, and the sliders are movably sleeved inside the sliding grooves, and the sliding grooves are symmetrically opened inside the limiting grooves.

[0012] According to the anti-disassembly nut, a telescopic spring is fixedly installed on the bottom end of the movable block, and the telescopic spring is movably sleeved on the outer wall of the movable rod.

[0013] The card block is movably embedded in the card slot, so that the gasket is movably embedded in the nut body, and the nut body is threadedly moved on the surface of the screw, pushing the movable block to slide inward in the limit slot, and also driving the movable rod to slide in the limit slot, and then driving the telescopic spring to contract. When the gasket and the nut body are precisely fitted, the elasticity of the telescopic spring can push the movable block to better fit the contact surface. The contact area of ​​the gasket increases, so that the force area is also increased, which provides good stability for the twisting of the nut body. At the same time, the movable block can be extended and contracted to match the concave and convex conditions of the contact surface.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a structural diagram of an anti-disassembly nut of the utility model;

[0017] Figure 2 This utility model is a kind of anti-disassembly nut Figure 1 A magnified side view of the middle nut body;

[0018] Figure 3 This utility model is a kind of anti-disassembly nut Figure 2 A magnified side view of the nut body and washer;

[0019] Figure 4 This utility model is a kind of anti-disassembly nut Figure 1 Cross-sectional structure diagram of the middle nut body;

[0020] Figure 5 This utility model is a kind of anti-disassembly nut Figure 3 Enlarged structural diagram of the partial cross section of the middle gasket.

[0021] Legend:

[0022] 1. Nut body; 2. Bolt; 3. Threaded block; 4. Rotating shaft; 5. Special-shaped rod; 6. Through slot; 7. Limiting ring; 8. Movable shaft; 9. Slot; 10. Block; 11. Gasket; 12. Limiting slot; 13. Movable rod; 14. Movable block; 15. Slider; 16. Slide; 17. Telescopic spring. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0024] Reference Figures 1 to 5 The utility model provides an anti-disassembly nut in an embodiment, comprising a nut body 1, a bolt 2 being movably sleeved inside the nut body 1, and a threaded block 3 being threadedly connected to the top end of the bolt 2, a rotating shaft 4 being symmetrically embedded and connected on both sides of the threaded block 3, and a special-shaped rod 5 being rotatably connected to the surface of the rotating shaft 4, a limiting ring 7 being fixedly connected to one side of the special-shaped rod 5, and a movable shaft 8 being rotatably connected to one side of the special-shaped rod 5, and the movable shaft 8 being installed inside the nut body 1. When the nut body 1 is threadedly connected to the surface of the screw, turning the bolt 2 causes the threaded block 3 to threadably move on the surface of the bolt 2, and then causes the special-shaped rod 5 to rotate with the movable shaft 8 as the center of the circle, driving the limiting ring 7 to rotate. Since the limiting ring 7 is spirally shaped, it can better fit the surface of the screw, thereby improving the stability of the limit.

[0025] The limiting ring 7 is in a spiral shape. When the limiting ring 7 is pushed, the limiting ring 7 can better fit the surface of the screw due to its spiral shape, thereby improving the stability of the limit.

[0026] A through slot 6 is formed on the outer wall of the shaped rod 5, and the rotating shaft 4 is movably sleeved inside the through slot 6. When the shaped rod 5 is driven and rotates around the movable shaft 8, one side of the shaped rod 5 and the threaded block 3 need space to rotate, so the rotating shaft 4 slides in the through slot 6 to provide space for the shaped rod 5 to rotate.

[0027] A slot 9 is formed on one side of the nut body 1, and a block 10 is movably sleeved inside the slot 9. The block 10 is fixed to one side of the washer 11. By movably inserting the block 10 into the slot 9, the washer 11 is movably inserted into the side of the nut body 1, which provides good stability for the screwing of the nut body 1. The contact area of ​​the washer 11 is increased, and the force-bearing area is also increased.

[0028] A limit slot 12 is defined on the other side of the washer 11, and a movable rod 13 is movably sleeved within the limit slot 12. A movable block 14 is fixedly connected to the top of the movable rod 13. When the movable block 14 slides inwardly within the limit slot 12, it also drives the movable rod 13 to slide within the limit slot 12, which in turn drives the telescopic spring 17 to contract. When the washer 11 is precisely fitted to the nut body 1, the movable block 14 can better fit the contact surface.

[0029] Slide blocks 15 are symmetrically fixedly connected to both sides of the movable block 14 , and the slide blocks 15 are movably sleeved inside the sliding grooves 16 , and the sliding grooves 16 are symmetrically opened inside the limiting grooves 12 .

[0030] The bottom ends of the movable block 14 are fixedly provided with a telescopic spring 17, and the telescopic spring 17 is movably sleeved on the outer walls of the movable rod 13. By the elasticity of the telescopic spring 17, the movable block 14 can be driven to be accommodated in the limiting groove 12, which has played a good reset effect.

[0031] Working principle: First, when the nut body 1 is threadedly connected to the screw surface and fixed, the bolt 2 is tightened, so that the threaded block 3 is threadedly moved on the surface of the bolt 2, thereby driving the rotating shaft 4 to move, and then driving the special-shaped rod 5, so that the special-shaped rod 5 is rotated with the movable axis 8 as the center, driving the limiting ring 7 to rotate. After the limiting ring 7 is pushed, the limiting ring 7 can better fit the screw surface due to its spiral shape, thereby improving the stability of the limit, thereby limiting and clamping the screw, playing a good fixing role, and movably embedding the clamping block 10 into the clamping groove 9, so that the gasket 11 is movably embedded in the nut body 1, and then the nut body 1 is threadedly moved on the screw surface, pushing the movable block 14 to slide inward in the limiting groove 12, and also driving the movable rod 13 to slide in the limiting groove 12, and then driving the telescopic spring 17 to contract. When the gasket 11 is precisely fitted with the nut body 1, the elasticity of the telescopic spring 17 pushes the movable block 14 to better fit the contact surface.

[0032] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A nut that prevents disassembly, characterized in that: The invention comprises a nut body (1), wherein a bolt (2) is movably sleeved inside the nut body (1), and a threaded block (3) is threadedly connected to the top end of the bolt (2), and a rotating shaft (4) is symmetrically embedded and connected on both sides of the threaded block (3), and a special-shaped rod (5) is rotatably connected to the surface of the rotating shaft (4), one side of the special-shaped rod (5) is fixedly connected to a limiting ring (7), and one side of the special-shaped rod (5) is rotatably connected to a movable shaft (8), and the movable shaft (8) is installed inside the nut body (1).

2. The anti-disassembly nut according to claim 1, characterized in that: The limiting ring (7) is spiral-shaped.

3. The anti-disassembly nut according to claim 1, characterized in that: A through slot (6) is provided on the outer wall of the special-shaped rod (5), and the rotating shaft (4) is movably sleeved inside the through slot (6).

4. The anti-disassembly nut according to claim 1, characterized in that: A clamping groove (9) is provided on one side of the nut body (1), and a clamping block (10) is movably sleeved inside the clamping groove (9), and the clamping block (10) is fixed on one side of the gasket (11).

5. The anti-disassembly nut according to claim 4, characterized in that: A limiting groove (12) is provided on the other side of the gasket (11), and a movable rod (13) is movably sleeved inside the limiting groove (12), and a movable block (14) is fixedly connected to the top end of the movable rod (13).

6. The anti-disassembly nut according to claim 5, characterized in that: Slide blocks (15) are symmetrically fixedly connected to both sides of the movable block (14), and the slide blocks (15) are movably sleeved inside the sliding grooves (16), and the sliding grooves (16) are symmetrically opened inside the limiting grooves (12).

7. The anti-disassembly nut according to claim 6, characterized in that: A telescopic spring (17) is fixedly mounted on the bottom end of the movable block (14), and the telescopic spring (17) is movably sleeved on the outer wall of the movable rod (13).

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