A fastener to prevent misalignment and stripping.

Abstract

This invention provides a fastener for preventing misalignment and stripping, comprising a screw and a connector. A nut is fixedly installed on the top of the screw, and external threads are formed on the outer side of the screw. Guide grooves are symmetrically formed on both sides of the screw. This invention aligns the bottom of the guide grooves on both sides of the screw with the anti-misalignment block inside the rotating ring and inserts it axially into the connector. In the initial insertion stage, the anti-misalignment block acts as a radial limiter, effectively constraining the lateral freedom of the screw and preventing radial displacement, ensuring that the external and internal threads are aligned at the meshing start point. As the screw begins to rotate under the action of rotational torque and screws downward, the anti-misalignment block rotates synchronously with the screw through the rotating shaft, continuously providing circumferential guidance and radial support to the screw. This avoids phenomena such as lateral force on the external and internal threads, incomplete meshing, or misalignment caused by tilting or shaking of the screw, thereby effectively preventing stripping.

Description

Technical Field

[0001] This utility model mainly relates to the field of bolt technology, specifically a fastener to prevent misalignment and stripping. Background Technology

[0002] A bolt is a common mechanical fastener used to connect two or more parts together. It typically consists of a threaded rod and a nut.

[0003] Traditional threaded connections lack an effective radial limiting and guiding mechanism during assembly. When the screw is inserted into the connector, it is prone to radial displacement, which can cause the thread to be subjected to lateral force, incomplete meshing, or misalignment due to tilting or shaking during screwing in, ultimately leading to stripping problems. Utility Model Content

[0004] This utility model mainly provides a fastener to prevent misalignment and stripping, in order to solve the technical problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A fastener for preventing misalignment and slippage includes a screw and a connector. A nut is fixedly installed on the top of the screw, and external threads are provided on the outer side of the screw. Guide grooves are symmetrically provided on both sides of the outer side of the screw. The connector is equipped with an anti-misalignment component at the top, and the connector is a cylindrical hollow structure with internal threads on its inner wall.

[0006] Preferably, the anti-misalignment component includes a rotating shaft, a connecting block, a rotating ring, and an anti-misalignment block. The rotating shaft is installed on the top of the connecting member, and connecting blocks are fixedly connected to both sides of the top of the rotating shaft. The rotating ring is fixedly connected to the top of the two connecting rods, and anti-misalignment blocks are fixedly connected to both sides of the inner wall of the rotating ring.

[0007] Preferably, the nut has a cross groove on its surface and a hexagonal structure at its top.

[0008] Preferably, the anti-misalignment block is rectangular in shape, and one end of the anti-misalignment block is adapted to the shape of the guide groove.

[0009] Preferably, the depth of the guide groove is less than the height of the external thread, and the length of the guide groove is equal to the height of the connector.

[0010] Preferably, the external thread height is equal to the internal thread depth.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Align the bottom of the guide grooves on both sides of the screw with the anti-misalignment blocks inside the rotating ring, and insert them axially into the connector. In the initial insertion stage, the anti-misalignment blocks act as radial limiters, effectively constraining the lateral freedom of the screw and preventing radial offset. This ensures that the external and internal threads are aligned at the meshing start point. As the screw begins to rotate under the action of rotational torque and screws downward, the anti-misalignment blocks rotate synchronously with the screw via the rotating shaft, continuously providing circumferential guidance and radial support to the screw. This avoids lateral stress, incomplete meshing, or misalignment of the external and internal threads caused by tilting or shaking of the screw, thus effectively preventing stripping.

[0012] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0013] Figure 1 This is an exploded view of the overall structure of this utility model; Figure 2 This is a schematic diagram of the screw and nut connection structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the connector of this utility model; Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0014] The attached figures are labeled as follows: 1. Screw; 2. Connector; 3. Nut; 4. External thread; 5. Guide groove; 6. Anti-misalignment component; 601. Rotating shaft; 602. Connecting block; 603. Rotating ring; 604. Anti-misalignment block; 7. Internal thread; 8. Cross groove. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive. Example

[0016] Please refer to the appendix carefully. Figure 1-4A fastener for preventing misalignment and stripping includes a screw 1 and a connector 2. A nut 3 is fixedly mounted on the top of the screw 1. The surface of the nut 3 has a cross groove 8 for easy tightening or loosening with a Phillips screwdriver. The top of the nut 3 has a hexagonal structure, which increases the contact area of ​​the tool and improves the stability of operation. The screw 1 has an external thread 4 on its outer side. Guide grooves 5 are symmetrically formed on both sides of the screw 1. The depth of the guide grooves 5 is less than the height of the external thread 4, which ensures that the guide grooves 5 will not interfere with the external thread 4 during the guiding process and effectively guides the insertion and rotation of the screw 1. The length of the guide grooves 5 is equal to the height of the connector 2, ensuring that the guide grooves 5 maintain a good fit with the connector 2 throughout the tightening process. The top of the connector 2 is provided with an anti-misalignment component 6, which includes a rotating shaft 601 and a connecting block 60. 2. A rotating ring 603 and an anti-misalignment block 604 are used. A rotating shaft 601 is installed on the top of the connector 2. Connecting blocks 602 are fixedly connected to both sides of the top of the rotating shaft 601. A rotating ring 603 is fixedly connected to the top of the two connecting blocks 602. Anti-misalignment blocks 604 are fixedly connected to both sides of the inner wall of the rotating ring 603. The anti-misalignment block 604 is rectangular in shape, and one end of it is adapted to the shape of the guide groove 5, so that the anti-misalignment block 604 can be accurately inserted into the guide groove 5. This plays a role in radial limiting when the screw 1 is inserted into the connector 2, preventing the screw 1 from radially deviating. The connector 2 is a cylindrical structure with a hollow center, which provides sufficient space for the insertion of the screw 1. The inner wall of the connector 2 is provided with internal threads 7. The depth of the internal threads 7 is equal to the height of the external threads 4 on the screw 1, ensuring that the two can fit tightly when meshing, thereby achieving a stable connection.

[0017] The specific operation method of this utility model is as follows: During use, the operator first inserts the bottom ends of the guide grooves 5 on both sides of the screw 1 into the anti-misalignment blocks on the inner diameter of the rotating ring 603 along the axial direction into the connector 2. The anti-misalignment blocks 604 play a radial limiting role in the initial insertion stage, effectively constraining the lateral degree of freedom of the screw 1 and preventing it from radially deviating. This ensures that the external thread 4 and the internal thread 7 are aligned at the meshing start point. As the screw 1 begins to rotate under the action of rotational torque and screws downward, the anti-misalignment blocks 604 rotate synchronously with the movement of the screw 1 through the rotating shaft 601, continuously providing circumferential guidance and radial support for the screw 1. This avoids phenomena such as lateral force on the external thread 4 and the internal thread 7, incomplete meshing, or misalignment caused by the screw 1 tilting or swaying left and right, thus preventing the occurrence of stripping problems.

[0018] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A fastener for preventing misalignment and stripping, comprising a screw (1) and a connector (2), characterized in that: The screw (1) is fixedly installed with a nut (3) at the top, and the screw (1) is provided with external thread (4) on the outside, and guide grooves (5) are symmetrically provided on both sides of the outside of the screw (1). The connector (2) is provided with an anti-misalignment component (6) at the top, and the connector (2) is a cylindrical hollow structure with internal threads (7) on the inner wall of the connector (2).

2. The fastener for preventing misalignment and stripping according to claim 1, characterized in that, The anti-misalignment component (6) includes a rotating shaft (601), a connecting block (602), a rotating ring (603), and an anti-misalignment block (604). The connecting member (2) is equipped with a rotating shaft (601) on its top, and connecting blocks (602) are fixedly connected to both sides of the top of the rotating shaft (601). The two connecting blocks (602) are fixedly connected to the top of the rotating ring (603), and anti-misalignment blocks (604) are fixedly connected to both sides of the inner wall of the rotating ring (603).

3. The fastener for preventing misalignment and stripping according to claim 1, characterized in that, The nut (3) has a cross groove (8) on its surface and the top of the nut (3) has a hexagonal structure.

4. The fastener for preventing misalignment and stripping according to claim 2, characterized in that, The anti-misalignment block (604) is rectangular in shape, and one end of the anti-misalignment block (604) is adapted to the shape of the guide groove (5).

5. A fastener for preventing misalignment and stripping according to claim 1, characterized in that, The depth of the guide groove (5) is less than the height of the external thread (4), and the length of the guide groove (5) is equal to the height of the connector (2).

6. A fastener for preventing misalignment and stripping according to claim 1, characterized in that, The height of the external thread (4) is equal to the depth of the internal thread (7).

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