Thick plate corner joints

Abstract

The present invention relates to the technical field of thick plate corner connection, and discloses a thick plate corner joint, comprising: a joint support frame and a positioning bolt, both sides of the joint support frame are embedded with connecting grooves, and the number of the connecting grooves is two, and the two connecting grooves are vertically distributed, and the inner walls of the two connecting grooves are penetrated with positioning holes, the inner walls of the positioning holes are fixedly connected with reinforcement cylinders, the inner walls of the reinforcement cylinders are respectively fixedly connected with positioning nuts and positioning cylinders, and one side of the positioning cylinder is movably connected to one side of the positioning nut, and a guide strip is integrally provided on the surface of the joint support frame. The thick plate corner joint can use a threaded column to form a one-way limit on the positioning bolt through a sliding linkage block to prevent the positioning bolt from loosening and rotating, and at the same time use an anti-loosening blocking block to block the sliding linkage block to prevent the sliding linkage block from sliding outward to move the positioning bolt to loosen, thereby further preventing the positioning bolt from loosening and improving the stability of the bolt.

Description

Technical Field

[0001] The invention relates to the technical field of thick plate fillet joints, in particular to a thick plate fillet joint. Background Art

[0002] As a water vehicle, ships often use thick plates in important parts to meet the needs of structural safety. When thick plates are connected at an angle, bolts are used to connect the two thick plates through joints. Since ships will shake to a certain extent when running on water, the connection of the bolts will be subject to a certain vibration, which may easily cause the bolts to loosen and fall off after a period of time, causing the connection between the thick plates to separate. Therefore, thick plate corner joints are required to prevent the bolts from loosening when the thick plates are corner-jointed and improve the stability of the bolts. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a thick plate fillet joint to solve the problems mentioned in the above background.

[0004] The present invention provides the following technical scheme: a thick plate corner joint, comprising: a joint support frame and a positioning bolt, both sides of the joint support frame are embedded with connecting grooves, and the number of the connecting grooves is two, and the two connecting grooves are vertically distributed, the inner walls of the two connecting grooves are penetrated with positioning holes, the inner walls of the positioning holes are fixedly connected with reinforcement cylinders, the inner walls of the reinforcement cylinders are respectively fixedly connected with positioning nuts and positioning cylinders, and one side of the positioning cylinder is movably connected with one side of the positioning nut, the surface of the joint support frame is integrally provided with guide strips, and the number of the guide strips is two, and the two guide strips are vertically distributed, the surface of the joint support frame is installed with sliding linkage blocks, and the number of the sliding linkage blocks is two, and the two sliding linkage blocks are relatively distributed, the surface of the sliding linkage blocks is provided with tooth patterns, the The surface of the positioning bolt is provided with meshing teeth, and the positioning bolt is meshed with the sliding linkage block through the meshing teeth and the tooth pattern. The surface of the joint support frame is integrally connected with a connecting block, and the inner wall of the connecting block is rotatably connected with a threaded column, and the outer wall of the threaded column is provided with an external thread, and the number of external threads is two, and the two external threads are relatively distributed. Threaded holes are provided on both sides of the sliding linkage block, and the inner wall of the threaded hole is provided with an internal thread, and the threaded hole is threadedly connected to the threaded column. The surface of the joint support frame is respectively integrally connected with an extended fixing ear and a positioning clamping ear, and clamping holes are provided on both sides of the positioning clamping ear. The inner wall of the extended fixing ear is rotatably connected with an anti-loosening blocking block, and positioning clamping blocks are provided on both sides of the anti-loosening blocking block, and the anti-loosening blocking block is clamped with the positioning clamping ear through the positioning clamping block.

[0005] Preferably, an installation groove is embedded in the inner side wall of the connecting groove, and a positioning spring is fixedly connected to the inner wall of the installation groove.

[0006] Preferably, both sides of the joint support frame are provided with embedded installation openings, and the number of the installation openings is two, and the two installation openings are relatively distributed, and the insides of the two installation openings are respectively fixedly connected with positioning magnets and positioning iron blocks, and the shape and size of the positioning magnets match the shape and size of the positioning iron blocks.

[0007] Preferably, an extrusion spring is fixedly connected to one side of the joint support frame, and the surface of the extrusion spring is slidably connected to one side of the anti-loosening blocking block, and a prying rod is integrally connected to one side of the anti-loosening blocking block, and one side of the anti-loosening blocking block is slidably connected to one end of the threaded column.

[0008] Preferably, a torsion ring is fixedly sleeved on the outer wall of the threaded column, and a hexagonal hole is penetrated through the outer wall of the torsion ring, and both ends of the threaded column are embedded with hexagonal grooves, and the shape and size of the hexagonal hole match the shape and size of the hexagonal groove.

[0009] Preferably, both sides of the sliding linkage block are provided with built-in sliding grooves, and the sliding linkage block is slidably connected to the guide bar through the sliding grooves.

[0010] Preferably, protective baffles are fixedly connected to both sides of the joint support frame, and the shape and size of the protective baffles match the shape and size of the sliding linkage block, and the inner surface of the protective baffle is slidably connected to the outer wall of the sliding linkage block, and the number of protective baffles is two.

[0011] Preferably, a mounting hole is opened on the surface of the reinforcement tube, and the mounting hole passes through the outer wall of the reinforcement tube and extends to the inner wall of the positioning tube, and a magnet column is fixedly connected to the inside of the mounting hole, and the magnet column is located around the positioning bolt.

[0012] Preferably, the positioning bolt is a ferromagnetic metal bolt, and the outer wall of the positioning bolt is threadedly connected to the inner wall of the positioning nut, and the outer wall of the positioning bolt is slidably connected to the inner wall of the positioning tube.

[0013] Preferably, the outer wall of the sliding linkage block is slidably connected to the surface of the joint support frame, and the sliding linkage block is located on one side of the anti-loosening blocking block.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The thick plate angle joint, through the set joint support frame, positioning bolts, connecting grooves, positioning holes, reinforcement tubes, positioning nuts, positioning tubes, guide strips, sliding linkage blocks, tooth patterns, meshing teeth, connecting blocks, threaded columns, threaded holes, extended fixing ears, positioning ears, anti-loosening blocking blocks and positioning blocks, can use the threaded columns to form a one-way limit on the positioning bolts through the sliding linkage blocks to prevent the positioning bolts from loosening and rotating. At the same time, the anti-loosening blocking blocks are used to block the sliding linkage blocks to prevent the sliding linkage blocks from sliding outward to loosen the positioning bolts, thereby further preventing the positioning bolts from loosening and improving the stability of the bolts.

[0016] 2. The thick plate corner joint, through the provided installation opening, positioning magnet and positioning iron block, can utilize the attraction between the positioning magnet and the positioning iron block to ensure that when multiple devices are used to fix the thick plate, the correlation between adjacent joint support frames can be enhanced.

[0017] 3. The thick plate corner joint, by providing the installation groove and the positioning spring, can utilize the elasticity of the positioning spring to squeeze the thick plate inside the connection groove, ensure that the edge of the thick plate is closely fitted with the inner wall of the connection groove, and improve the connection stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0020] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 It is a structural schematic diagram of the position of the sliding linkage block of the present invention;

[0022] Figure 5 It is a side sectional view of the present invention;

[0023] Figure 6 It is a schematic diagram of the connection structure between the anti-loosening blocking block and the positioning clamping ear of the present invention;

[0024] Figure 7 This is a schematic diagram of the connection structure between the sliding linkage block and the threaded column of the present invention;

[0025] Figure 8 It is a side sectional view of the reinforcement tube of the present invention.

[0026] In the figure: 1. Joint support frame; 2. Positioning bolt; 3. Connecting groove; 4. Positioning hole; 5. Reinforcement tube; 6. Positioning nut; 7. Positioning tube; 8. Guide strip; 9. Sliding linkage block; 10. Tooth pattern; 11. Meshing teeth; 12. Connecting block; 13. Threaded column; 14. Threaded hole; 15. Extended fixing ear; 16. Positioning ear; 17. Anti-loosening blocking block; 18. Positioning block; 19. Mounting groove; 20. Positioning spring; 21. Mounting port; 22. Positioning magnet; 23. Positioning iron block; 24. Extrusion spring; 25. Prying rod; 26. Twist ring; 27. Hexagonal hole; 28. Hexagonal groove; 29. ​​Slide groove; 30. Protective baffle; 31. Mounting hole; 32. Magnet column. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-8, thick plate corner joint, including: a joint support frame 1 and a positioning bolt 2, both sides of the joint support frame 1 are embedded with connecting grooves 3, and the number of the connecting grooves 3 is two, and the two connecting grooves 3 are vertically distributed, the inner walls of the two connecting grooves 3 are penetrated with positioning holes 4, the inner walls of the positioning holes 4 are fixedly connected with reinforcement cylinders 5, the inner walls of the reinforcement cylinders 5 are respectively fixedly connected with positioning nuts 6 and positioning cylinders 7, and one side of the positioning cylinder 7 is movably connected to one side of the positioning nut 6, and the surface of the joint support frame 1 is integrally provided with guide strips 8, and the number of the guide strips 8 is two, and the two guide strips 8 are vertically distributed The surface of the joint support frame 1 is installed with a sliding linkage block 9, and the number of the sliding linkage blocks 9 is two, and the two sliding linkage blocks 9 are relatively distributed, the surface of the sliding linkage block 9 is provided with a tooth pattern 10, the surface of the positioning bolt 2 is provided with a meshing tooth 11, and the positioning bolt 2 is meshed and connected with the sliding linkage block 9 through the meshing tooth 11 and the tooth pattern 10, the surface of the joint support frame 1 is integrally connected with a connecting block 12, the inner wall of the connecting block 12 is rotatably connected with a threaded column 13, and the outer wall of the threaded column 13 is provided with an external thread, and the number of the external threads is two, and the two external threads are relatively distributed, the sliding linkage block 9 The two sides of the joint support frame 1 are penetrated with threaded holes 14, and the inner walls of the threaded holes 14 are provided with internal threads, and the threaded holes 14 are threadedly connected with the threaded columns 13. The surfaces of the joint support frame 1 are respectively connected with the extended fixing ears 15 and the positioning ears 16 in an integrated manner, and the two sides of the positioning ears 16 are penetrated with card holes, and the inner walls of the extended fixing ears 15 are rotatably connected with anti-loosening blocking blocks 17, and the two sides of the anti-loosening blocking blocks 17 are provided with positioning blocks 18, and the anti-loosening blocking blocks 17 are clamped with the positioning ears 16 through the positioning blocks 18. Through the set joint support frame 1, positioning bolts 2, connecting grooves 3, positioning holes 4, and adding The fixed cylinder 5, the positioning nut 6, the positioning cylinder 7, the guide strip 8, the sliding linkage block 9, the tooth pattern 10, the meshing teeth 11, the connecting block 12, the threaded column 13, the threaded hole 14, the extended fixing ear 15, the positioning ear 16, the anti-loosening blocking block 17 and the positioning block 18 can use the threaded column 13 to form a one-way limit on the positioning bolt 2 through the sliding linkage block 9 to prevent the positioning bolt 2 from loosening and rotating. At the same time, the anti-loosening blocking block 17 is used to block the sliding linkage block 9 to prevent the sliding linkage block 9 from sliding outward to loosen the positioning bolt 2, thereby further preventing the positioning bolt 2 from loosening and improving the stability of the bolt.

[0029] Among them; the inner side wall of the connecting groove 3 is embedded with an installation groove 19, and the inner wall of the installation groove 19 is fixedly connected with a positioning spring 20. By setting the installation groove 19 and the positioning spring 20, the elasticity of the positioning spring 20 can be utilized to squeeze into the thick plate inside the connecting groove 3, ensuring that the edge of the thick plate is tightly fitted with the inner wall of the connecting groove 3, thereby improving the connection stability.

[0030] Among them; both sides of the joint support frame 1 are embedded with mounting openings 21, and the number of the mounting openings 21 is two, and the two mounting openings 21 are relatively distributed, and the insides of the two mounting openings 21 are respectively fixedly connected with positioning magnets 22 and positioning iron blocks 23, and the shape and size of the positioning magnets 22 match the shape and size of the positioning iron blocks 23. The joint support frame 1 can be connected by the attraction between the positioning magnets 22 and the positioning iron blocks 23 when correspondingly connected. By setting the mounting openings 21, positioning magnets 22 and positioning iron blocks 23, the attraction between the positioning magnets 22 and the positioning iron blocks 23 can be utilized, ensuring that when multiple devices are fixed to the thick plate, the correlation between adjacent joint support frames 1 can be enhanced. The components of the magnet are atoms such as iron, cobalt, and nickel. The internal structure of the atoms is relatively special and has a magnetic moment itself. Magnets can generate magnetic fields and have the characteristics of attracting ferromagnetic materials such as iron, nickel, cobalt and other metals. Magnets are divided into permanent magnets and soft magnets. Permanent magnets are added with strong magnetism to make the spin of magnetic materials and the angular momentum of electrons arranged in a fixed direction. Soft magnets are added with electricity. Once the current is removed, the soft iron will slowly lose its magnetism.

[0031] Among them, one side of the joint support frame 1 is fixedly connected with an extrusion spring 24, and the surface of the extrusion spring 24 is slidably connected to one side of the anti-loosening blocking block 17, and one side of the anti-loosening blocking block 17 is integrally connected with a prying rod 25, and one side of the anti-loosening blocking block 17 is slidably connected to one end of the threaded column 13, so as to utilize the elastic pressure formed by the elastic deformation of the extrusion spring 24 to extrude and maintain the anti-loosening blocking block 17, ensure that the anti-loosening blocking block 17 can be squeezed and reset when it is loose, and improve the anti-interference ability of the anti-loosening blocking block 17.

[0032] Among them; the outer wall of the threaded column 13 is fixedly sleeved with a torsion ring 26, and the outer wall of the torsion ring 26 is penetrated by a hexagonal hole 27, and both ends of the threaded column 13 are embedded with hexagonal grooves 28, and the shape and size of the hexagonal hole 27 match the shape and size of the hexagonal groove 28. The sizes of the hexagonal hole 27 and the hexagonal groove 28 are consistent with the sizes of hexagonal wrenches commonly used on the market, thereby ensuring that the hexagonal hole 27 and the hexagonal groove 28 are conveniently used as the insertion force receiving points of the hexagonal wrench to drive the threaded column 13 to rotate, thereby realizing the amplification of torque and labor saving.

[0033] Among them, both sides of the sliding linkage block 9 are embedded with sliding grooves 29, and the sliding linkage block 9 is slidably connected with the guide strips 8 through the sliding grooves 29. While the two guide strips 8 guide the sliding grooves 29, the sliding linkage block 9 can be squeezed and limited on the surface of the joint support frame 1 to prevent the sliding linkage block 9 from falling off, thereby ensuring the stable sliding of the sliding linkage block 9.

[0034] Among them, protective baffles 30 are fixedly connected to both sides of the joint support frame 1, and the shape and size of the protective baffles 30 match the shape and size of the sliding linkage block 9, and the inner surface of the protective baffle 30 is slidably connected to the outer wall of the sliding linkage block 9, and the number of protective baffles 30 is two, so that the sliding linkage block 9 can be blocked by the anti-loosening blocking block 17 to prevent the sliding linkage block 9 from sliding out, thereby indirectly achieving the limitation of the positioning bolt 2 to prevent the positioning bolt 2 from loosening due to reverse rotation.

[0035] Among them; a mounting hole 31 is opened on the surface of the reinforcement tube 5, and the mounting hole 31 passes through the outer wall of the reinforcement tube 5 and extends to the inner wall of the positioning tube 7, and a magnet column 32 is fixedly connected to the inside of the mounting hole 31, and the magnet column 32 is located around the positioning bolt 2, so that when the positioning bolt 2 is inserted, the positioning tube 7 can be used to form a preliminary positioning for it, avoiding the positioning bolt 2 being blocked by the thread as soon as it is inserted, and at the same time providing a support platform for installing the magnet column 32.

[0036] Among them; the positioning bolt 2 is a ferromagnetic metal bolt, and the outer wall of the positioning bolt 2 is threadedly connected to the inner wall of the positioning nut 6, and the outer wall of the positioning bolt 2 is slidably connected to the inner wall of the positioning tube 7, so that the positioning bolt 2 is attracted and fixed by the magnet column 32 to prevent the positioning bolt 2 from falling off, thereby improving the stability of the positioning bolt 2 during installation and improving the convenience of the positioning bolt 2 during installation. Ferromagnetics refers to the magnetic state of a material, which has a spontaneous magnetization phenomenon. Iron is the most widely known among all materials, hence the name. After some materials are magnetized under the action of an external magnetic field, they can still maintain their magnetized state and have magnetism even if the external magnetic field disappears, which is the so-called spontaneous magnetization phenomenon. All permanent magnets have ferromagnetism or ferrimagnetism, and ferromagnetic metal is a general term for metals with ferromagnetism.

[0037] Among them; the outer wall of the sliding linkage block 9 is slidably connected to the surface of the joint support frame 1, and the sliding linkage block 9 is located on one side of the anti-loosening blocking block 17, so that the sliding of the two sliding linkage blocks 9 can drive the positioning bolts 2 inside the joint support frame 1 to rotate simultaneously, thereby realizing the linkage of the positioning bolts 2, and facilitating the positioning of multiple positioning bolts 2 at the same time when fixing the sliding linkage block 9.

[0038] Working principle: when in use, holes corresponding to the positioning holes 4 are opened on the surfaces of the two thick plates to be corner-jointed, and then the sides of the two thick plates are inserted into the connecting groove 3 so that the positioning holes 4 are aligned with the holes on the surface of the thick plates. At the same time, the positioning spring 20 is deformed to squeeze and fix the thick plates. Then, positioning bolts 2 are inserted from one end of the reinforcement tube 5 into the multiple positioning holes 4 so that the positioning bolts 2 pass through the openings to limit the two thick plates, and the meshing teeth 11 are meshed with the tooth patterns 10. The magnet column 32 attracts the positioning bolts 2 to prevent the positioning bolts 2 from falling off. Then, a certain pressure is applied to the end of the positioning bolt 2, and a hexagonal wrench is used to twist the threaded column through the hexagonal hole 27 or the hexagonal slot 28. 13 rotates, and when the threaded column 13 rotates, the thread will be used to push the two sliding linkage blocks 9 to slide toward the middle along the guide strip 8, so that the tooth pattern 10 on the surface of the sliding linkage block 9 drives the meshing teeth 11 to drive all the positioning bolts 2 to twist. When the positioning bolt 2 is twisted, it moves toward the inside of the positioning nut 6 through the thread between it and the positioning nut 6 until the side of the sliding linkage block 9 away from the torsion ring 26 is aligned with the end of the threaded column 13, and the positioning bolt 2 reaches the end of the position, and then the anti-loosening blocking block 17 is rotated to clamp the positioning card block 18 into the positioning card ear 16. The anti-loosening blocking block 17 forms a blocking limit for the end of the sliding linkage block 9, thereby preventing the sliding linkage block 9 from sliding outward and driving the positioning bolt 2 to loosen.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Thick plate fillet joint, characterized in that: include: A joint support frame (1) and a positioning bolt (2), wherein both sides of the joint support frame (1) are provided with connection grooves (3) in an embedded manner, and the number of the connection grooves (3) is two, and the two connection grooves (3) are vertically distributed, and the inner walls of the two connection grooves (3) are penetrated with positioning holes (4), and the inner walls of the positioning holes (4) are fixedly connected with reinforcement tubes (5), and the inner walls of the reinforcement tubes (5) are respectively fixedly connected with positioning nuts (6) and positioning tubes (7), and one side of the positioning tubes (7) is connected to the positioning nuts ( 6), the surface of the joint support frame (1) is integrally provided with a guide bar (8), and the number of the guide bars (8) is two, and the two guide bars (8) are vertically distributed, the surface of the joint support frame (1) is installed with a sliding linkage block (9), and the number of the sliding linkage blocks (9) is two, and the two sliding linkage blocks (9) are relatively distributed, the surface of the sliding linkage block (9) is provided with tooth patterns (10), the surface of the positioning bolt (2) is provided with meshing teeth (11), and the positioning The bolt (2) is meshed and connected with the sliding linkage block (9) through meshing teeth (11) and tooth patterns (10); the surface of the joint support frame (1) is integrally connected with a connection block (12); the inner wall of the connection block (12) is rotatably connected with a threaded column (13); and the outer wall of the threaded column (13) is provided with external threads, and the number of external threads is two, and the two external threads are relatively distributed; threaded holes (14) are penetrated on both sides of the sliding linkage block (9), and the inner wall of the threaded hole (14) is provided with internal threads. The threaded hole (14) is threadedly connected to the threaded column (13); the surface of the joint support frame (1) is respectively integrally connected with an extended fixing ear (15) and a positioning clamping ear (16); clamping holes are provided on both sides of the positioning clamping ear (16); the inner wall of the extended fixing ear (15) is rotatably connected with an anti-loosening blocking block (17); positioning clamping blocks (18) are provided on both sides of the anti-loosening blocking block (17); and the anti-loosening blocking block (17) is clamped with the positioning clamping ear (16) through the positioning clamping block (18).

2. The thick plate fillet joint according to claim 1, characterized in that: The inner side wall of the connection groove (3) is provided with an installation groove (19) in an embedded manner, and the inner wall of the installation groove (19) is fixedly connected with a positioning spring (20).

3. The thick plate fillet joint according to claim 1, characterized in that: Both sides of the joint support frame (1) are provided with mounting openings (21) in an embedded manner, and the number of the mounting openings (21) is two, and the two mounting openings (21) are relatively distributed, and the insides of the two mounting openings (21) are respectively fixedly connected with a positioning magnet (22) and a positioning iron block (23), and the shape and size of the positioning magnet (22) and the shape and size of the positioning iron block (23) match each other.

4. The thick plate fillet joint according to claim 1, characterized in that: One side of the joint support frame (1) is fixedly connected to an extrusion spring (24), and the surface of the extrusion spring (24) is slidably connected to one side of an anti-loosening blocking block (17), and one side of the anti-loosening blocking block (17) is integrally connected to a prying rod (25), and one side of the anti-loosening blocking block (17) is slidably connected to one end of the threaded column (13).

5. The thick plate fillet joint according to claim 1, characterized in that: The outer wall of the threaded column (13) is fixedly sleeved with a torsion ring (26), and the outer wall of the torsion ring (26) is penetrated by a hexagonal hole (27), and both ends of the threaded column (13) are embedded with a hexagonal groove (28), and the shape and size of the hexagonal hole (27) and the shape and size of the hexagonal groove (28) are matched with each other.

6. The thick plate fillet joint according to claim 1, characterized in that: Both sides of the sliding linkage block (9) are provided with sliding grooves (29) in an embedded manner, and the sliding linkage block (9) is slidingly connected to the guide bar (8) through the sliding grooves (29).

7. The thick plate fillet joint according to claim 1, characterized in that: Protective baffles (30) are fixedly connected to both sides of the joint support frame (1), and the shape and size of the protective baffles (30) match the shape and size of the sliding linkage block (9), and the inner surface of the protective baffles (30) is slidably connected to the outer wall of the sliding linkage block (9), and the number of the protective baffles (30) is two.

8. The thick plate fillet joint according to claim 1, characterized in that: The surface of the reinforcement tube (5) is provided with a mounting hole (31), and the mounting hole (31) passes through the outer wall of the reinforcement tube (5) and extends to the inner wall of the positioning tube (7), and a magnet column (32) is fixedly connected to the inside of the mounting hole (31), and the magnet column (32) is located around the positioning bolt (2).

9. The thick plate fillet joint according to claim 8, characterized in that: The positioning bolt (2) is a ferromagnetic metal bolt, and the outer wall of the positioning bolt (2) is threadedly connected to the inner wall of the positioning nut (6), and the outer wall of the positioning bolt (2) is slidably connected to the inner wall of the positioning tube (7).

10. The thick plate fillet joint according to claim 1, characterized in that: The outer wall of the sliding linkage block (9) is slidably connected to the surface of the joint support frame (1), and the sliding linkage block (9) is located on one side of the anti-loosening blocking block (17).

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