High-strength fastening bolt structure convenient to position

Abstract

The utility model discloses a high-strength fastening bolt structure convenient to position, and aims to provide a high-strength fastening bolt structure which can assist a bolt to be positioned in a positioning hole so as to be convenient to install. The bolt comprises a bolt body. The nut is in threaded connection with the bolt main body, a flat ring is arranged on the nut, and the flat ring is in sliding connection with the bolt main body; the positioning sleeve is mounted on the bolt main body; the end positioning assembly is mounted at the top end of the bolt main body, and the end positioning assembly is in threaded connection with the bolt main body. The utility model has the beneficial effects that the positioning of the bolt in the positioning hole can be assisted so as to facilitate the installation, the nut can be quickly positioned, the bolt main body can be prevented from loosening, the stud can be ensured to be in a vertical state in the positioning hole, the position of the positioning sleeve can be limited, and the fastening screw can be prevented from loosening on the surface of a workpiece.

Description

Technical Field

[0001] This utility model relates to the technical field of fastening bolts, and in particular to a high-strength fastening bolt structure that is easy to position. Background Technology

[0002] Existing bolted connections require a clearance during installation, meaning the bolt and the mounting hole of the fastener are not perfectly aligned; a certain gap exists. Therefore, when the bolt is inserted into the mounting hole, it cannot be guaranteed that the bolt is completely vertical (or horizontal). During nut assembly, it becomes difficult to install the nut onto the bolt. If brute force is used to screw the nut onto the bolt, the tilted bolt will act on the fastener, causing it to shift and disrupting its concentricity and coaxiality, thus affecting the tightening effect.

[0003] Chinese Patent Publication No. CN214304779U, published on September 28, 2021, discloses a fixing bolt with a positioning and fixing component. The bolt body comprises a column and a cap, the cap being integrally formed at one end of the column. A positioning component is connected to the cap, comprising a connecting block, a sliding block, a positioning rod, and a return spring. The connecting block and the cap are detachably fixed, the sliding block and the connecting block are slidably connected, and the return spring is connected between the sliding block and the connecting block. A handle is fixed to the upper end of the sliding block, and the positioning rod is fixed to the end of the handle, with a rubber sleeve fixed to the handle. The drawback of this invention is that it lacks positioning of the stud within the mounting hole, which can easily cause bolt misalignment. Utility Model Content

[0004] This invention aims to overcome the shortcomings of existing technologies that lack positioning of studs within mounting holes, which can easily lead to bolt misalignment. It provides a high-strength fastening bolt structure that can assist in positioning the bolt within the positioning hole, thereby facilitating installation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-strength fastening bolt structure that is easy to position includes:

[0007] Bolt body;

[0008] The nut is threadedly connected to the bolt body, and the nut is provided with a flat ring, which is slidably connected to the bolt body.

[0009] A positioning sleeve is installed on the bolt body;

[0010] An end positioning assembly is installed on the top of the bolt body and is threadedly connected to the bolt body.

[0011] The bolt body and nut together form the main structure of the fastener to secure it. To ensure the nut can be easily screwed onto the bolt body, a flat ring is installed on the nut to assist in the connection between the nut and the bolt body. The flat ring ensures the nut's flatness, facilitating a quick connection between the bolt body and the nut. A positioning sleeve is installed on the bolt body to ensure the bolt body is positioned within the positioning hole, guaranteeing its verticality. An end positioning component is also installed at the top of the bolt body to further position it and prevent loosening. This achieves the goal of assisting in the bolt's positioning within the positioning hole, thus facilitating installation.

[0012] Preferably, the bolt body includes a stud and a nut. The nut is installed at one end of the stud, and a rotating groove is provided on one side of the nut. The flattening ring is placed in the rotating groove and rotatably connected to the nut. A guide groove is provided on the stud, and a guide block is installed on the inner side of the flattening ring. The flattening ring is slidably connected to the stud through the cooperation of the guide block and the guide groove. The bolt body is composed of a stud and a nut. A nut is installed on the stud, and a flattening ring is installed in the rotating groove on the nut. The guide block installed on the inner wall of the flattening ring cooperates with the guide groove on the stud to ensure that the flattening ring can be smoothly fitted onto the stud. Since the flattening ring is rotatably connected to the nut, the flattening ring will not affect the normal tightening of the nut, ensuring smooth connection of the nut. This design allows for quick positioning of the nut.

[0013] Preferably, the stud is provided with a plurality of circumferentially distributed wedges. The wedges have a triangular cross-sectional shape, with one side connected to the side of the stud and the other side connected to the bottom of the nut. The wedges, with the triangular wedges mounted on the top of the stud, are pressed into the positioning hole by continuous pressure applied to the stud. The triangular wedges, with their rounded sides, are gradually pressed into the positioning hole, further positioning the stud and preventing the bolt body from loosening. This design prevents the bolt body from becoming loose.

[0014] Preferably, the diameter of the positioning sleeve is larger than the diameter of the stud. One end of the stud passes through the positioning sleeve and is positioned on the other side of the positioning sleeve. Both ends of the positioning sleeve are fitted with retaining rings. One end of the retaining ring is connected to one end of the positioning sleeve, and the other end of the retaining ring is fitted against the side of the stud. The angle between the retaining ring and the positioning sleeve is acute. The diameter of the positioning sleeve fitted onto the stud is the same as that of the positioning hole. Different diameter positioning sleeves are used depending on the size of the positioning hole. When the stud is inserted into the mounting hole, the positioning sleeve fits against the mounting hole, ensuring that the stud placed inside the positioning sleeve is in a vertical position. To facilitate the insertion of the stud into the mounting hole, retaining rings are installed at both ends of the positioning sleeve on the stud. The retaining rings fit against the surface of the stud, ensuring that the stud is in a vertical position inside the positioning sleeve. The inward-curving design of the retaining rings makes it easier to insert the positioning sleeve into the mounting hole and guides the bolt into the mounting hole. This design ensures that the stud is in a vertical position inside the positioning hole.

[0015] Preferably, the positioning sleeve has a limiting block on the retaining ring near the guide groove end. Each limiting block corresponds to a guide groove, with one end connected to the inner side of the retaining ring and the other end placed inside the guide groove. Several circumferentially distributed positioning blocks are installed on the retaining ring at the other end of the positioning sleeve. During the insertion of the positioning sleeve into the mounting hole, to prevent the positioning sleeve from detaching, it is necessary to limit the position of the positioning sleeve on the stud. The limiting block on one end of the retaining ring, corresponding to the guide groove, facilitates the placement of the positioning sleeve onto the stud and also limits the rotation of the positioning sleeve. The circumferentially distributed positioning blocks on the retaining ring at the other end, pressing against the stud surface, limit the positioning sleeve and prevent it from loosening. This design effectively limits the position of the positioning sleeve.

[0016] Preferably, the end positioning assembly includes a fixing plate and positioning pins. The fixing plate fits against the top of the nut, and a fixing screw is installed on the nut. One end of the fixing screw is connected to the nut, and the other end passes through the fixing plate and is positioned on the other side of the fixing plate. A fixing nut is provided on the fixing screw, and the fixing nut is threadedly connected to the fixing screw. Several circumferentially distributed extension plates are installed on the fixing plate, and several positioning pins are provided, each corresponding to one of the extension plates. The positioning pins are installed on the extension plates. The end positioning assembly is installed on the nut of the bolt body. After the connecting parts are connected by tightening the bolt, the fixing plate is placed on the nut, and the circumferentially distributed extension plates on the fixing plate are mounted on the fixing plate. The positioning pins on the extension plates contact the workpiece surface. Then, the fixing screw is screwed on the fixing screw to fix the fixing plate to the nut, so that the end of the positioning pin is driven into the workpiece. This can position the screw and prevent the fastening screw from loosening due to vibration. This design can prevent the fastening screw from loosening on the workpiece surface.

[0017] The beneficial effects of this utility model are: it can assist in the positioning of bolts in the positioning hole, thus facilitating installation; it can quickly position the nut; it can prevent the bolt body from loosening; it can ensure that the stud is in a vertical state in the positioning hole; it can limit the position of the positioning sleeve; and it can prevent the fastening screw from loosening on the workpiece surface. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of the main body of the bolt;

[0020] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle nut;

[0021] Figure 4 yes Figure 1 Schematic diagram of the middle positioning sleeve;

[0022] Figure 5 yes Figure 1 A schematic diagram of the mid-end positioning component.

[0023] In the diagram: 1. Bolt body; 11. Stud; 12. Nut; 13. Guide groove; 14. Wedge; 15. Fixing screw; 16. Fixing nut; 2. Nut; 21. Rotating groove; 3. Flat ring; 31. Guide block; 4. Positioning sleeve; 41. Snap ring; 42. Limiting block; 43. Positioning block; 5. End positioning assembly; 51. Fixing plate; 52. Positioning pin; 53. Extension plate. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 In the illustrated embodiment, a high-strength fastening bolt structure that facilitates positioning includes:

[0026] Bolt body 1;

[0027] Nut 2 is threadedly connected to bolt body 1. Nut 2 is provided with a flat ring 3, which is slidably connected to bolt body 1.

[0028] Positioning sleeve 4 is installed on bolt body 1;

[0029] End positioning component 5 is installed on the top of bolt body 1 and is threadedly connected to bolt body 1.

[0030] like Figure 2 , Figure 3 As shown, the bolt body 1 includes a stud 11 and a nut 12. The nut 12 is installed at one end of the stud 11. A rotating groove 21 is provided on one side of the nut 2. The flat ring 3 is placed in the rotating groove 21 and is rotatably connected to the nut 2. A guide groove 13 is provided on the stud 11. A guide block 31 is installed on the inner side of the flat ring 3. The flat ring 3 is slidably connected to the stud 11 through the cooperation of the guide block 31 and the guide groove 13.

[0031] The stud 11 is provided with several circumferentially distributed wedges 14. The cross-sectional shape of the wedges 14 is triangular. One side of the wedges 14 is connected to the side of the stud 11, and the other side of the wedges 14 is connected to the bottom of the nut 12.

[0032] like Figure 4 As shown, the diameter of the positioning sleeve 4 is larger than the diameter of the stud 11. One end of the stud 11 passes through the positioning sleeve 4 and is placed on the other side of the positioning sleeve 4. Both ends of the positioning sleeve 4 are equipped with snap rings 41. One end of the snap ring 41 is connected to one end of the positioning sleeve 4, and the other end of the snap ring 41 is in contact with the side of the stud 11. The included angle between the snap ring 41 and the positioning sleeve 4 is an acute angle.

[0033] The positioning sleeve 4 has a locking ring 41 near the guide groove 13 with a limiting block 42. The limiting block 42 corresponds to the guide groove 13 one by one. One end of the limiting block 42 is connected to the inner side of the locking ring 41, and the other end of the limiting block 42 is placed in the guide groove 13. Several positioning blocks 43 are installed on the locking ring 41 at the other end of the positioning sleeve 4.

[0034] like Figure 5As shown, the end positioning assembly 5 includes a fixing plate 51 and positioning pins 52. The fixing plate 51 is attached to the top of the nut 12. A fixing screw 15 is installed on the nut 12. One end of the fixing screw 15 is connected to the nut 12, and the other end of the fixing screw 15 passes through the fixing plate 51 and is placed on the other side of the fixing plate 51. A fixing nut 16 is provided on the fixing screw 15. The fixing nut 16 is threadedly connected to the fixing screw 15. Several extension plates 53 are installed on the fixing plate 51 in a circular arrangement. Several positioning pins 52 are provided and correspond one-to-one with the extension plates 53. The positioning pins 52 are installed on the extension plates 53.

[0035] When installing the fastening screw, first install the positioning sleeve 4 onto the stud 11. The retaining ring 41 of the positioning sleeve 4 matches the stud 11. One end of the positioning sleeve 4 is guided onto the stud 11 by the cooperation of the limiting block 42 and the guide groove 13, while the other end is fixed to the positioning block 43 to ensure that the positioning sleeve 4 will not fall off. Then, insert the stud 11 into the mounting hole. Guided by the retaining rings 41 at both ends of the positioning sleeve 4, it enters the mounting hole. The fit between the positioning sleeve 4 and the mounting hole fixes the stud 11 in the mounting hole, preventing the stud 11 from shaking in the mounting hole.

[0036] After the stud 11 is inserted into the mounting hole, the guide block 31 on the flat ring 3 is inserted into the guide groove 13 on the stud 11 to ensure that the nut 2 can make flat contact with the end face of the stud 11, which facilitates the connection between the nut 2 and the stud 11 and can better position the connection between the nut 2 and the stud 11.

[0037] Finally, the fixing plate 51 of the end positioning assembly 5 is placed on the nut 12, and then the fixing plate 51 is fixed to the nut 12 by installing the fixing nut 16 on the fixing screw 16. The positioning pins 52 on the extension plates 53 installed around the fixing plate 51 contact the workpiece surface and directly press the workpiece surface. The positioning pins 52 press the workpiece surface to position the bolt body 1 and prevent the bolt body 1 from loosening due to vibration.

Claims

1. A high-strength fastening bolt structure that is easy to position, characterized in that it comprises: Bolt body (1); Nut (2), the nut (2) is threadedly connected to bolt body (1), and the nut (2) is provided with a flat ring (3), the flat ring (3) is slidably connected to bolt body (1); Positioning sleeve (4), the positioning sleeve (4) is installed on bolt body (1); End positioning component (5) is installed on the top of bolt body (1) and is threadedly connected to bolt body (1).

2. The high-strength fastening bolt structure for easy positioning according to claim 1, characterized in that, The bolt body (1) includes a stud (11) and a nut (12). The nut (12) is installed at one end of the stud (11). The nut (2) has a rotating groove (21) on one side. The flat ring (3) is placed in the rotating groove (21) and is rotatably connected to the nut (2). The stud (11) has a guide groove (13). The flat ring (3) has a guide block (31) installed on its inner side. The flat ring (3) is slidably connected to the stud (11) through the cooperation of the guide block (31) and the guide groove (13).

3. The high-strength fastening bolt structure for easy positioning according to claim 2, characterized in that, The stud (11) is provided with a number of wedges (14) arranged in a circular pattern. The cross-sectional shape of the wedges (14) is triangular. One side of the wedges (14) is connected to the side of the stud (11), and the other side of the wedges (14) is connected to the bottom of the nut (12).

4. The high-strength fastening bolt structure for easy positioning according to claim 2, characterized in that, The diameter of the positioning sleeve (4) is larger than that of the stud (11). One end of the stud (11) passes through the positioning sleeve (4) and is placed on the other side of the positioning sleeve (4). Both ends of the positioning sleeve (4) are equipped with snap rings (41). One end of the snap ring (41) is connected to one end of the positioning sleeve (4), and the other end of the snap ring (41) is in contact with the side of the stud (11). The angle between the snap ring (41) and the positioning sleeve (4) is an acute angle.

5. The high-strength fastening bolt structure for easy positioning according to claim 4, characterized in that, The positioning sleeve (4) has a limiting block (42) on the snap ring (41) near the guide groove (13). The limiting block (42) corresponds to the guide groove (13) one by one. One end of the limiting block (42) is connected to the inner side of the snap ring (41), and the other end of the limiting block (42) is placed in the guide groove (13). Several positioning blocks (43) are installed on the snap ring (41) at the other end of the positioning sleeve (4).

6. The high-strength fastening bolt structure for easy positioning according to claim 2, characterized in that, The end positioning assembly (5) includes a fixing plate (51) and positioning pins (52). The fixing plate (51) is attached to the top of the nut (12). A fixing screw (15) is installed on the nut (12). One end of the fixing screw (15) is connected to the nut (12). The other end of the fixing screw (15) passes through the fixing plate (51) and is placed on the other side of the fixing plate (51). A fixing nut (16) is provided on the fixing screw (15). The fixing nut (16) is threadedly connected to the fixing screw (15). Several extension plates (53) are installed on the fixing plate (51) in a circular distribution. Several positioning pins (52) are provided and correspond one-to-one with the extension plates (53). The positioning pins (52) are installed on the extension plates (53).

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