Anti-loose T-shaped bolt

Abstract

The utility model discloses an anti-loose T-shaped bolt, which belongs to the technical field of fasteners and comprises a T-shaped bolt, the T-shaped bolt comprises a bolt head and a screw which are connected with each other, the screw is provided with a threaded section and an unthreaded section, and the unthreaded section is arranged close to the bolt head; a cylindrical cavity is formed in the unthreaded section, two through holes are formed in the unthreaded section, and the through holes are communicated with the cavity; after the T-shaped bolt is screwed into the groove body, the rotating rod is pulled outwards through the handle, the cross-shaped limiting block on the connecting rod is driven to move upwards out of the cross-shaped channel section, the rotating rod rotates by 90 degrees to drive the rotating column to rotate by 90 degrees, the section of the rotating column is oval, the outer side end of the anti-loosening nail moves outwards and abuts against the wall of the groove body, and the rotating rod returns to the interior of the cross-shaped groove body. When the bolt is loosened, the cross-shaped limiting block returns into the cross-shaped channel section, namely, the position of the rotating column is limited, the anti-loosening nail can continuously abut against or be inserted into the wall of the groove body, the connection strength of the bolt is effectively improved, and the good anti-loosening effect is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of fastener technology, specifically relating to an anti-loosening T-bolt. Background Technology

[0002] T-bolts can be inserted into the groove of aluminum profiles and are often used in conjunction with flange nuts. They are the standard matching connectors when installing corner fittings. The selection of T-bolts depends on the width of the profile groove and the different series of profiles. T-bolts are movable anchor bolts with a wide range of applications.

[0003] Existing T-bolts, due to the lack of a restraining structure in the nut, are prone to rotation when the mounting component vibrates, leading to loosening and detachment. Therefore, a non-loosening T-bolt is needed to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide an anti-loosening T-bolt to overcome the shortcomings of the above-mentioned technology.

[0005] To achieve the above objectives, this utility model provides an anti-loosening T-bolt, comprising a T-bolt, a bolt head and a threaded rod connected to each other, the threaded rod having a threaded section and a non-threaded section, the non-threaded section being located close to the bolt head; the non-threaded section having an internal cavity, the cavity being cylindrical, and having two through holes communicating with the cavity; a fixed plate and a movable plate being provided within the through holes, the movable plate having a bearing hole, an anti-loosening nail being fixedly installed within the bearing hole, the fixed plate having a connecting hole cooperating with the movement of the anti-loosening nail, and a spring being provided between the movable plate and the fixed plate. A spring is fitted around the anti-loosening screw; one end of the anti-loosening screw is arc-shaped and located inside the cavity, while the other end is pointed; a rotating column is provided inside the cavity, with an elliptical cross-section; a connecting rod is provided on the rotating column, and the bolt head and the unthreaded section have interconnected through channels that communicate with the cavity; a cross groove is provided on the bolt head, with the middle of the cross groove communicating with the through channel; a rotating rod is provided inside the cross groove, and the connecting rod passes upward through the through channel and is fixedly connected to the rotating rod; a cross limit block is provided on the connecting rod, and a cross channel section is provided on the through channel.

[0006] Preferably, the cavity is provided with a limiting plate, and the limiting plate is provided with an auxiliary channel for use with the connecting rod.

[0007] Preferably, the rotating rod is provided with a handle.

[0008] The beneficial effects of this utility model are as follows: After the T-bolt is screwed into the groove, the rotating rod is pulled outward by the handle, which causes the cross-shaped limiting block on the connecting rod to move upward out of the cross channel section. The rotating rod rotates 90 degrees, which will cause the rotating column to rotate 90 degrees. Because the cross section of the rotating column is elliptical, the outer end of the anti-loosening nail will move outward and abut against the groove wall, so that the rotating rod returns to the cross groove and the cross-shaped limiting block returns to the cross channel section, thus limiting the position of the rotating column. This allows the anti-loosening nail to continuously abut or be inserted against the groove wall, effectively increasing the connection strength of the bolt and providing a good anti-loosening effect. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram showing the connection of the rotating rod, connecting rod, and rotating column;

[0012] Figure 3 This is a schematic diagram of state 1 when the present invention is in use;

[0013] Figure 4 This is a schematic diagram of state 2 when the present invention is in use;

[0014] Figure 5 This is a schematic diagram of state 3 when the present invention is in use;

[0015] Figure 6 This is a schematic diagram of state 4 when the present invention is in use;

[0016] Figure 7 This is a schematic diagram of the internal structure of the cavity;

[0017] Figure 8 This is a structural diagram of the rotating column in use;

[0018] Figure 9 This is a structural diagram of a cross passage segment.

[0019] In the diagram, 1. Bolt head, 2. Screw, 3. Threaded section, 4. Unthreaded section, 5. Cavity, 6. Through hole, 7. Fixing plate, 8. Moving plate, 9. Anti-loosening screw, 10. Spring, 11. Rotating column, 12. Connecting rod, 13. Through channel, 14. Cross groove, 15. Rotating rod, 16. Cross limit block, 17. Cross channel section, 18. Limiting plate, 19. Handle. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0021] Reference Figure 1-9 This embodiment provides an anti-loosening T-bolt, including a T-bolt, which includes a bolt head 1 and a screw 2 connected to each other. The screw 2 has a threaded section 3 and an unthreaded section 4, with the unthreaded section 4 located near the bolt head 1. The unthreaded section 4 has a cavity 5 inside, which is cylindrical. The unthreaded section 4 has two through holes 6, which communicate with the cavity 5. A fixed plate 7 and a movable plate 8 are provided inside the through holes 6. The movable plate 8 has a bearing hole, and an anti-loosening nail 9 is fixedly installed in the bearing hole. The fixed plate 7 has a connecting hole that moves with the anti-loosening nail 9. A spring 10 is provided between the movable plate 8 and the fixed plate 7, and the spring 10 is sleeved on the outside of the anti-loosening nail 9. One end of the anti-loosening nail 9 is arc-shaped and located inside the cavity 5, while the other end of the anti-loosening nail 9 is pointed. A rotating column 11 is provided inside the cavity 5. The column 11 has an elliptical cross-section. A connecting rod 12 is provided on the rotating column 11. A through-channel 13 is interconnected inside the bolt head 1 and the unthreaded section 4, and the through-channel 13 communicates with the cavity 5. A cross-shaped groove 14 is provided on the bolt head 1, and the middle of the cross-shaped groove 14 communicates with the through-channel 13. A rotating rod 15 is provided inside the cross-shaped groove 14. The connecting rod 12 passes upward through the through-channel 13 and is fixedly connected to the rotating rod 15. To ensure the rigidity of the connection between the rotating rod, connecting rod, and rotating column, a material with high rigidity can be used. A cross-shaped limiting block 16 is provided on the connecting rod 12, and a cross-shaped channel section 17 is provided on the through-channel 13. The cross-shaped channel section 17 works in conjunction with the cross-shaped limiting block 16 to limit the connecting rod 12, preventing it from rotating and ensuring the position of the rotating column 11 is fixed.

[0022] The cavity 5 is provided with a limiting plate 18, and the limiting plate 18 is provided with an auxiliary channel for use with the connecting rod 12. The limiting plate 18 allows the rotating column 11 to move within the space defined by the limiting plate 18, preventing the rotating column 11 from moving away from the anti-loosening nail 9, and allowing the anti-loosening nail 9 to continue to be used normally.

[0023] The rotating rod 15 is provided with a handle 19, which makes it easy to pull the rotating rod 15 outward.

[0024] When using this invention, after the T-bolt is screwed into the groove, the handle 19 is used to pull the rotating rod 15 outward, causing the cross-shaped limiting block 16 on the connecting rod 12 to move upward out of the cross channel section 17. The rotating rod 15 rotates 90 degrees, which in turn causes the rotating column 11 to rotate 90 degrees. Because the cross section of the rotating column 11 is elliptical, the outer end of the anti-loosening nail 9 will move outward and abut against the groove wall, causing the rotating rod 15 to return to its position in the cross groove 14 and the cross-shaped limiting block 16 to return to its position in the cross channel section 17. This limits the position of the rotating column 11, allowing the anti-loosening nail 9 to continuously abut or be inserted against the groove wall, effectively increasing the connection strength of the bolt and providing a good anti-loosening effect.

[0025] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A type of anti-loosening T-bolt, comprising a T-bolt, characterized in that, The T-bolt includes a bolt head (1) and a screw (2) connected to each other. The screw (2) has a threaded section (3) and a non-threaded section (4). The non-threaded section (4) is located close to the bolt head (1). The non-threaded section (4) has a cavity (5) inside. The cavity (5) is cylindrical. The non-threaded section (4) has two through holes (6) that communicate with the cavity (5). The through holes (6) have a fixed plate (7) and a movable plate (8) inside. The movable plate (8) has a bearing hole. An anti-loosening nail (9) is fixed in the bearing hole. The fixed plate (7) has a connecting hole that moves with the anti-loosening nail (9). A spring (10) is provided between the movable plate (8) and the fixed plate (7). The spring (10) is sleeved on the outside of the anti-loosening nail (9). One end of the anti-loosening nail (9) is arc-shaped and Located inside the cavity (5), the other end of the anti-loosening nail (9) is a pointed part; the cavity (5) is provided with a rotating column (11), the cross-sectional shape of the rotating column (11) is elliptical; the rotating column (11) is provided with a connecting rod (12), the bolt head (1) and the unthreaded section (4) are provided with a through channel (13) that is interconnected, and the through channel (13) is connected to the cavity (5); the bolt head (1) is provided with a cross groove (14), the middle part of the cross groove (14) is interconnected with the through channel (13); the cross groove (14) is provided with a rotating rod (15), the connecting rod (12) passes upward through the through channel (13) and is fixedly connected to the rotating rod (15); the connecting rod (12) is provided with a cross limit block (16), and the through channel (13) is provided with a cross channel section (17).

2. The anti-loosening T-bolt according to claim 1, characterized in that, The cavity is provided with a limiting plate (18), and the limiting plate (18) is provided with an auxiliary channel for use with the connecting rod (12).

3. The anti-loosening T-bolt according to claim 1, characterized in that, The rotating rod (15) is provided with a handle (19).

Images