Precise screw with self-locking and anti-loosening functions

Abstract

The utility model discloses a precision screw with self-locking and anti-loosening functions, which comprises a screw rod head, a screw rod body is fixedly connected on the side wall of the screw rod head, two sliding chutes which are symmetrically distributed are arranged in the screw rod body, a nut is in threaded connection with the outer side of the screw rod body, and the screw rod head and the screw rod body are in threaded connection. And the upper end of the nut is fixedly connected with two guide rails which are symmetrically distributed. According to the precise screw, the anti-loosening assembly for preventing the nut from loosening is arranged, the manufacturing precision of the precise screw is high, accurate thread fit and fastening force can be guaranteed, and the connection reliability of the precise screw can be further improved through the anti-loosening assembly; due to the design of the anti-loosening assembly, the assembly failure caused by loosening can be reduced, so that the production efficiency is improved, and the production cost is reduced; the anti-loosening assembly can effectively prevent the screw from loosening or falling off caused by external factors such as vibration and impact, so that the stability and safety of equipment or a structure are ensured.

Description

Technical Field

[0001] This utility model relates to the field of precision screw technology, specifically a precision screw with self-locking and anti-loosening function. Background Technology

[0002] A precision screw with a self-locking anti-loosening function is an advanced fastener. It adds this feature to a standard screw and is widely used in precision machinery, electronic equipment, aerospace, and automotive industries. This precision screw mainly consists of a screw, a nut, and a self-locking mechanism. The screw and nut are made of high-quality materials, possessing high precision and high strength. The self-locking mechanism is the core of this screw; it automatically locks after tightening, preventing loosening and detachment. This precision screw's self-locking mechanism employs a unique design that automatically increases friction when subjected to vibration or external force, preventing loosening. The self-locking mechanism can be implemented in various ways, such as using special materials, increasing the thread friction coefficient, or using locking grooves.

[0003] When existing devices are in use, precision screws without anti-loosening components are prone to loosening due to slight movement caused by vibration or dynamic loads, which reduces the friction between the screw and the connecting parts. Loosening leads to increased gaps between connecting parts, reducing the tightness and reliability of the connection. Long-term loosening can cause damage to the screw or other connecting parts, such as thread wear and breakage. Precision screws are typically used in equipment requiring high precision and stability. The lack of anti-loosening components can lead to a decline in equipment performance, affecting product quality and production efficiency. Therefore, we need to propose a precision screw with a self-locking anti-loosening function. Utility Model Content

[0004] The purpose of this utility model is to provide a precision screw with a self-locking and anti-loosening function. The precision screw has the advantages of an anti-loosening component, such as high manufacturing precision, which can ensure accurate thread fit and reduce the possibility of loosening; its anti-loosening component design can effectively prevent the screw from loosening during vibration or long-term use, ensuring the stability and reliability of equipment or products, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A precision screw with self-locking and anti-loosening function includes a screw head, a screw body fixedly connected to the side wall of the screw head, two symmetrically distributed sliding grooves opened inside the screw body, a nut threadedly connected to the outer side of the screw body, two symmetrically distributed guide rails fixedly connected to the upper end of the nut, and anti-loosening components for preventing the nut from loosening are provided on the outer side of the two guide rails.

[0007] Preferably, the anti-loosening component includes a first limiting block slidably connected to the upper end of one of the guide rails, a first slider fixedly connected inside the first limiting block, a second limiting block slidably connected to the upper end of the other guide rail, a nut slidably connected to the first limiting block and the second limiting block respectively, a screw body contacting the first limiting block and the second limiting block respectively, a second slider fixedly connected inside the second limiting block, and two sliding grooves contacting the first slider and the second slider respectively.

[0008] Preferably, two symmetrically distributed first mounting plates are fixedly connected to the side wall of the first limiting block, and a first elastic plate is provided on the side wall of each of the two first mounting plates.

[0009] Preferably, two symmetrically distributed second mounting plates are fixedly connected to the side wall of the second limiting block, and a second elastic plate is provided on the side wall of each of the two second mounting plates.

[0010] Preferably, the two second elastic plates are in contact with the two first elastic plates respectively.

[0011] Preferably, each of the two first mounting plates is provided with a connecting assembly for connecting the first mounting plate and the second mounting plate on its sidewall. Each of the two connecting assemblies includes an elastic rope fixedly connected to the sidewall of the two first mounting plates. The two elastic ropes are in contact with the first elastic plate, the second mounting plate, and the second elastic plate, respectively. A fixing ring is fixedly connected to the end of each of the two elastic ropes. A fixing rod is fixedly connected to the upper end of each of the two first elastic plates. The fixing rod is slidably connected to the fixing ring.

[0012] Preferably, the inner sidewall of the screw head is provided with an internal hexagonal groove and a cross groove, and the internal hexagonal groove and the cross groove are connected.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention incorporates an anti-loosening component to prevent nuts from loosening. Precision screws are manufactured with high precision, ensuring accurate thread fit and tightening force. The anti-loosening component further enhances the reliability of the connection. Its design reduces assembly failures due to loosening, thereby improving production efficiency and reducing costs. Furthermore, the anti-loosening component effectively prevents screws from loosening or falling off due to external factors such as vibration and impact, ensuring the stability and safety of equipment or structures. Attached Figure Description

[0015] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0016] Figure 2 This is the second structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of a partial component of this utility model;

[0018] Figure 4 This is a schematic diagram of the unfolded structure of a partial component of this utility model.

[0019] In the diagram: 1. Screw head; 2. Socket hexagonal groove; 3. Cross groove; 4. Screw body; 5. Slide groove; 6. Nut; 7. Guide rail; 8. First limiting block; 9. First slider; 10. Second limiting block; 11. Second slider; 12. First mounting plate; 13. Elastic rope; 14. First elastic plate; 15. Fixing ring; 16. Fixing rod; 17. Second mounting plate; 18. Second elastic plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0021] Please see Figure 1-4 This utility model provides a technical solution:

[0022] A precision screw with self-locking and anti-loosening function includes a screw head 1, a screw body 4 fixedly connected to the side wall of the screw head 1, two symmetrically distributed sliding grooves 5 opened inside the screw body 4, a nut 6 threadedly connected to the outside of the screw body 4, two symmetrically distributed guide rails 7 fixedly connected to the upper end of the nut 6, and anti-loosening components for preventing the nut 6 from loosening are provided on the outside of the two guide rails 7.

[0023] For example, the screw body 4 is easy to use with the nut 6, the guide rail 7 is used to install the anti-loosening component, and the screw head 1 is easy to install and remove the screw body 4.

[0024] The anti-loosening component includes a first limiting block 8 slidably connected to the upper end of one of the guide rails 7, a first slider 9 fixedly connected inside the first limiting block 8, a second limiting block 10 slidably connected to the upper end of the other guide rail 7, a nut 6 slidably connected to the first limiting block 8 and the second limiting block 10 respectively, a screw body 4 contacting the first limiting block 8 and the second limiting block 10 respectively, a second slider 11 fixedly connected inside the second limiting block 10, and two sliding grooves 5 contacting the first slider 9 and the second slider 11 respectively.

[0025] For example, the first limiting block 8 and the second limiting block 10 slide on the two guide rails 7 respectively. When the first limiting block 8 and the second limiting block 10 approach each other, the first slider 9 and the second slider 11 are locked inside the slide groove 5, which can prevent the first limiting block 8 and the second limiting block 10 from rotating. The first limiting block 8 and the second limiting block 10 cooperate with the guide rails 7 to prevent the nut 6 from rotating, thereby playing the role of preventing loosening.

[0026] Two symmetrically distributed first mounting plates 12 are fixedly connected to the side wall of the first limiting block 8. A first elastic plate 14 is provided on the side wall of each of the two first mounting plates 12. Two symmetrically distributed second mounting plates 17 are fixedly connected to the side wall of the second limiting block 10. A second elastic plate 18 is provided on the side wall of each of the two second mounting plates 17. The two second elastic plates 18 are in contact with the two first elastic plates 14 respectively.

[0027] For example, the first mounting plate 12 fixes the first limiting block 8, the first mounting plate 12 fixes the second limiting block 10, and the first elastic plate 14 and the second elastic plate 18 facilitate the connection between the first mounting plate 12 and the second mounting plate 17.

[0028] Each of the two first mounting plates 12 has a connecting assembly for connecting the first mounting plate 12 and the second mounting plate 17 on its side wall. Each connecting assembly includes an elastic rope 13 fixedly connected to the side wall of the two first mounting plates 12. The two elastic ropes 13 are in contact with the first elastic plate 14, the second mounting plate 17 and the second elastic plate 18 respectively. The ends of the two elastic ropes 13 are fixedly connected to a fixing ring 15. The upper ends of the two first elastic plates 14 are fixedly connected to a fixing rod 16, and the fixing rod 16 is slidably connected to the fixing ring 15.

[0029] For example, when the elastic rope 13 is pulled out, the gap between the first mounting plate 12 and the second mounting plate 17 decreases, the first elastic plate 14 and the second elastic plate 18 are flattened, the fixing ring 15 is fastened to the outside of the fixing rod 16, and the first mounting plate 12, the first elastic plate 14, the second mounting plate 17 and the second elastic plate 18 are connected by the elastic rope 13, so that the first slider 9 and the second slider 11 are locked inside the slide groove 5.

[0030] The inner sidewall of the screw head 1 is provided with an internal hexagonal groove 2 and a cross groove 3, which are connected to each other.

[0031] For example, the internal hexagonal groove 2 and the cross groove 3 facilitate the rotation of the screw head 1.

[0032] Working principle: When this utility model is used, the screw body 4 is easy to cooperate with the nut 6, the guide rail 7 is used to install the anti-loosening component, the screw head 1 is easy to install and remove the screw body 4, the first limiting block 8 and the second limiting block 10 slide on the two guide rails 7 respectively. When the first limiting block 8 and the second limiting block 10 approach each other, the first slider 9 and the second slider 11 are locked inside the slide groove 5, which can prevent the first limiting block 8 and the second limiting block 10 from rotating. The first limiting block 8 and the second limiting block 10 cooperate with the guide rail 7 to prevent the nut 6 from rotating, thereby playing the role of anti-loosening.

[0033] The first mounting plate 12 fixes the first limiting block 8 and the second limiting block 10. The first elastic plate 14 and the second elastic plate 18 facilitate the connection between the first mounting plate 12 and the second mounting plate 17. The elastic rope 13 is pulled out, the gap between the first mounting plate 12 and the second mounting plate 17 is reduced, the first elastic plate 14 and the second elastic plate 18 are flattened, the fixing ring 15 is fastened to the outside of the fixing rod 16, and the first mounting plate 12, the first elastic plate 14, the second mounting plate 17 and the second elastic plate 18 are connected by the elastic rope 13, so that the first slider 9 and the second slider 11 are stuck inside the slide groove 5.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision screw with self-locking and anti-loosening function, comprising a screw head (1), characterized in that: A screw body (4) is fixedly connected to the side wall of the screw head (1). Two symmetrically distributed sliding grooves (5) are opened inside the screw body (4). A nut (6) is threadedly connected to the outside of the screw body (4). Two symmetrically distributed guide rails (7) are fixedly connected to the upper end of the nut (6). Anti-loosening components for preventing the nut (6) from loosening are provided on the outside of the two guide rails (7). The anti-loosening component includes a first limiting block (8) slidably connected to the upper end of one of the guide rails (7), a first slider (9) fixedly connected inside the first limiting block (8), a second limiting block (10) slidably connected to the upper end of the other guide rail (7), a nut (6) slidably connected to the first limiting block (8) and the second limiting block (10) respectively, a screw body (4) contacting the first limiting block (8) and the second limiting block (10) respectively, a second slider (11) fixedly connected inside the second limiting block (10), and two sliding grooves (5) contacting the first slider (9) and the second slider (11) respectively.

2. A precision screw with self-locking and anti-loosening function according to claim 1, characterized in that: Two first mounting plates (12) are fixedly connected to the side wall of the first limiting block (8), and a first elastic plate (14) is provided on the side wall of each of the two first mounting plates (12).

3. A precision screw with self-locking and anti-loosening function according to claim 1, characterized in that: Two symmetrically distributed second mounting plates (17) are fixedly connected to the side wall of the second limiting block (10), and a second elastic plate (18) is provided on the side wall of each of the two second mounting plates (17).

4. A precision screw with self-locking and anti-loosening function according to claim 3, characterized in that: The two second elastic plates (18) are in contact with the two first elastic plates (14) respectively.

5. A precision screw with self-locking and anti-loosening function according to claim 2, characterized in that: Each of the two first mounting plates (12) is provided with a connecting component for connecting the first mounting plate (12) and the second mounting plate (17). Each of the two connecting components includes an elastic rope (13) fixedly connected to the side wall of the two first mounting plates (12). The two elastic ropes (13) are in contact with the first elastic plate (14), the second mounting plate (17), and the second elastic plate (18), respectively. The ends of the two elastic ropes (13) are fixedly connected with a fixing ring (15). The upper ends of the two first elastic plates (14) are fixedly connected with a fixing rod (16). The fixing rod (16) is slidably connected to the fixing ring (15).

6. A precision screw with self-locking and anti-loosening function according to claim 1, characterized in that: The screw head (1) has an internal hexagonal groove (2) and a cross groove (3) respectively on the side wall, and the internal hexagonal groove (2) and the cross groove (3) are connected.

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