A steel structure connection device for tunnels with adjustable contact surface angle

Abstract

This utility model discloses a tunnel steel structure connection device with adjustable contact surface angle, belonging to the field of tunnel engineering technology. It includes a circular plate and a steel frame. A screw is rotatably connected to the top of the circular plate, and fixed rods are connected to both sides of the circular plate. In this utility model, by turning the connecting block, the screw rotates on the circular plate. As the screw rotates, the movable block can move up and down along the screw via a threaded sleeve. During this process, the two ends of the hinge rod rotate on connecting rod one and connecting rod two respectively, thereby pushing the connecting plates on both sides through the hinge rod, causing the connecting plates to rotate around the fixed rods, thus adjusting the included angle between the two connecting plates to change the contact surface angle to adapt to various steel structure connection operations and meet actual needs. As the movable block moves upward, the two connecting plates will move closer together, and the hinge rod and movable block can be fitted into the grooves on the connecting plates, making it convenient for workers to store and carry.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel engineering technology, and in particular relates to a steel structure connection device for tunnels with an adjustable contact surface angle. Background Technology

[0002] Tunnel engineering is a passageway project that passes through mountains, underground or underwater, and is mainly used in transportation, water conservancy, municipal and other fields. Tunnel design must meet the requirements of load, waterproofing and ventilation. Common cross-sectional forms are circular, horseshoe or rectangular. The steel structure of the tunnel is mainly used for support and reinforcement, such as steel arch frame, lining steel plate, etc., and has the characteristics of high strength and easy installation.

[0003] Traditional steel structure connectors for tunnels are mostly fixed and integral designs, making it difficult to flexibly adjust them according to the needs of steel structure components with different installation angles. When facing complex and ever-changing construction scenarios in tunnels, such as splicing irregular steel structures and installing supports at multiple angles, additional connectors with various angle specifications are required, increasing construction costs and leading to low construction efficiency due to frequent device replacements. To solve these problems, there is an urgent need for a steel structure connector for tunnels with an adjustable contact surface angle. Summary of the Invention

[0004] The purpose of this utility model is to solve the problem that traditional tunnel steel structure connectors are mostly fixed and integral designs, which make it difficult to flexibly adjust according to the needs of steel structure components with different installation angles, thus affecting actual needs and construction efficiency. Therefore, this utility model proposes a tunnel steel structure connector with an adjustable contact surface angle.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A steel structure connection device for tunnels with adjustable contact surface angle includes a circular plate and a steel frame. A screw is rotatably connected to the top of the circular plate, and fixed rods are connected to both sides of the circular plate. A connecting plate is rotatably connected to the circular plate through the fixed rods, and a connecting sleeve is connected to the connecting plate. Fixed holes and fixed strip holes are opened on both sides of the connecting plate. The connecting plate is fixedly connected to the steel frame by bolts. A groove is provided on the top of the connecting plate, and a connecting rod is connected in the groove. A movable block is slidably installed through the screw, and a threaded sleeve is fixedly installed in the movable block. Connecting rods 2 are connected to both sides of the movable block. Hinged rods are rotatably connected to both sides of the movable block via connecting rods 2. Slots are provided on the movable block. A main cover is installed on one side of the movable block via a slot, and a secondary cover is installed on the other side of the movable block via a slot. Insert plates are connected to both the main cover and the secondary cover. Arc-shaped ends are connected to both sides of the main cover and the secondary cover. Rubber pads are connected to the inner walls of the arc-shaped ends, and half-threads are provided on the walls of the arc-shaped ends.

[0006] As a further description of the above technical solution: The connecting sleeve is rotatably connected to the fixed rod, and the end of the hinge rod away from the second connecting rod is rotatably connected to the first connecting rod.

[0007] As a further description of the above technical solution: Two threaded rings are fitted on the screw, and the two threaded rings are respectively located above and below the movable block. The half-threads on the arc ends of the main cover and the half-threads on the arc ends of the secondary cover together form a complete thread and are threadedly engaged with the threaded rings.

[0008] As a further description of the above technical solution: A strong magnetic plate is connected to the wall of the slot, and the insert plate is inserted into the slot.

[0009] As a further description of the above technical solution: A strong magnetic plate is connected to one side of the insert plate, and the strong magnetic plate and the strong magnetic plate are magnetically attracted to each other.

[0010] As a further description of the above technical solution: The threaded sleeve is threadedly engaged with the screw, and a connecting block is connected to one end of the screw, with anti-slip texture provided on the connecting block.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this utility model, by turning the connecting block, the screw is made to rotate on the circular plate. As the screw rotates, the movable block can move up and down along the screw through the threaded sleeve. During the process, the two ends of the hinge rod will rotate on the first connecting rod and the second connecting rod respectively. Then, the hinge rod pushes the connecting plates on both sides, causing the connecting plates to rotate around the fixed rod, thereby adjusting the included angle between the two connecting plates to change the contact surface angle to adapt to various steel structure connection operations and meet actual needs. When the movable block moves up continuously, the two connecting plates will move closer to each other, and the hinge rod and the movable block can be fitted into the groove on the connecting plate, making it convenient for workers to store and carry.

[0012] 2. In this utility model, by inserting the insert plates on the main cover and the secondary cover into the slot, the rubber pad can make close contact with the screw during the process, and the strong magnetic plate one and the strong magnetic plate two can be magnetically attracted to each other, thereby initially positioning and fixing the main cover and the secondary cover. The half-threads on the arc ends of the two sides of the main cover and the half-threads on the arc ends of the two sides of the secondary cover can together form a complete thread. Then, by turning the threaded ring, the threaded ring is made to fix the main cover and the secondary cover together. The friction is increased by the rubber pad, which prevents the screw and the moving block from moving accidentally. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a steel structure connection device for tunnels with an adjustable contact surface angle, as proposed in this utility model. Figure 2 This is a schematic diagram of the cross-sectional structure of the connecting plate of a steel structure connecting device for tunnels with an adjustable contact surface angle, as proposed in this utility model. Figure 3 This is a three-dimensional structural diagram of the connecting plate of a steel structure connecting device for tunnels with adjustable contact surface angle proposed in this utility model. Figure 4 This is a schematic diagram of the cross-sectional structure of the movable block of a steel structure connection device for tunnels with an adjustable contact surface angle, as proposed in this utility model. Figure 5 This is a schematic diagram of the connection structure between the connecting plate and the steel frame of a tunnel steel structure connection device with an adjustable contact surface angle proposed in this utility model.

[0014] Legend: 1. Circular plate; 101. Steel frame; 2. Screw; 3. Fixing rod; 4. Connecting plate; 5. Connecting sleeve; 6. Fixing hole; 7. Fixing strip hole; 8. Groove; 9. Connecting rod one; 10. Movable block; 11. Threaded sleeve; 12. Connecting rod two; 13. Hinge rod; 14. Slot; 15. Main cover; 16. Secondary cover; 17. Insert plate; 18. Arc end; 19. Rubber pad; 20. Half-side thread; 21. Threaded ring; 22. Strong magnetic plate one; 23. Strong magnetic plate two; 24. Connecting block. Detailed Implementation

[0015] The utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are only descriptive and are not limiting of the scope of protection of this utility model.

[0016] In its specific implementation, such as Figures 1-5 This utility model provides a technical solution: a steel structure connection device for tunnels with adjustable contact surface angle, including a circular plate 1 and a steel frame 101. A screw 2 is rotatably connected above the circular plate 1. Two threaded rings 21 are sleeved on the screw 2, and the two threaded rings 21 are respectively set above and below the movable block 10. The half-side threads 20 of the arc ends 18 on both sides of the main cover 15 and the half-side threads 20 of the arc ends 18 on both sides of the secondary cover 16 together form a complete thread and are threadedly engaged with the threaded rings 21. By turning the two threaded rings 21 in combination, the movable block 10 is double-limited and the main cover 15 and the secondary cover 16 are fixed, preventing the main cover 15 and the secondary cover 16 from accidentally moving and separating.

[0017] The circular plate 1 is connected to two fixed rods 3 on both sides. The circular plate 1 is rotatably connected to the connecting plate 4 through the fixed rods 3. The connecting plate 4 is connected to the connecting sleeve 5. The connecting sleeve 5 is rotatably connected to the fixed rod 3. The end of the hinge rod 13 away from the second connecting rod 12 is rotatably connected to the first connecting rod 9. The movable block 10 and the connecting plates 4 on both sides are connected through the hinge rod 13, so that the movable block 10 can be restricted by the connecting plates 4 on both sides to prevent the movable block 10 from rotating or tilting accidentally.

[0018] The connecting plate 4 has fixing holes 6 and fixing strip holes 7 on both sides. The connecting plate 4 is fixedly connected to the steel frame 101 by bolts. A groove 8 is provided on the top of the connecting plate 4. A connecting rod 9 is connected in the groove 8. A movable block 10 is slidably installed through the screw 2. A threaded sleeve 11 is fixedly installed in the movable block 10. The threaded sleeve 11 is threadedly engaged with the screw 2. A connecting block 24 is connected to one end of the screw 2. The connecting block 24 is provided with anti-slip texture. The anti-slip texture on the connecting block 24 increases the friction between the hand and the connecting block 24, eliminating the need for auxiliary tools and improving the convenience of on-site adjustment. By inserting the bolts into the fixing holes 6 and fixing strip holes 7 and aligning them with the threaded holes opened on the steel frame 101 or the tunnel wall, the connection and fixation of the two steel frames 101 or the steel frame 101 and the tunnel wall can be completed.

[0019] Connecting rods 12 are connected to both sides of the movable block 10. Hinges 13 are rotatably connected to both sides of the movable block 10 via connecting rods 12. A slot 14 is provided on the movable block 10. A strong magnetic plate 22 is connected to the wall of the slot 14. An insert plate 17 is inserted into the slot 14. By inserting the insert plate 17 into the slot 14, it is convenient for the staff to position the main cover 15 and the secondary cover 16, so as to avoid skewing during installation.

[0020] The main cover 15 is installed on one side of the movable block 10 through the slot 14, and the secondary cover 16 is installed on the other side of the movable block 10 through the slot 14. Both the main cover 15 and the secondary cover 16 are connected to the insert plate 17. A strong magnetic plate 23 is connected to one side of the insert plate 17. The strong magnetic plate 22 and the strong magnetic plate 23 are magnetically attracted to each other. The main cover 15 and the secondary cover 16 are connected to the arc end 18 on both sides. A rubber pad 19 is connected to the inner wall of the arc end 18. The arc end 18 is provided with a half thread 20. The main cover 15 and the secondary cover 16 can be initially fixed by the magnetic attraction between the strong magnetic plate 22 and the strong magnetic plate 23, so as to facilitate subsequent tightening by turning the threaded ring 21.

[0021] Working principle: Rotating the screw 2 via the connecting block 24 causes the movable block 10 to move downwards along the screw 2 via the threaded sleeve 11. During this process, the two ends of the hinge rod 13 rotate on the connecting rod 9 and the connecting rod 12 respectively. This, in turn, pushes the connecting plates 4 on both sides via the hinge rod 13, causing the connecting plates 4 to rotate around the fixed rod 3. This adjusts the included angle between the two connecting plates 4, changing the contact surface angle to adapt to various steel structure connection operations and meet actual needs. Afterwards, the insert plates 17 on the main cover 15 and the secondary cover 16 are inserted into the slot 14. The rubber pad 19 can fit in close contact with the screw 2, while the strong magnetic plate 22 and the strong magnetic plate 23 can magnetically attract each other, thereby initially positioning and fixing the main cover 15 and the secondary cover 16. The half-threads 20 on the arc ends 18 on both sides of the main cover 15 and the half-threads 20 on the arc ends 18 on both sides of the secondary cover 16 can together form a complete thread. Then, by turning the threaded ring 21, the threaded ring 21 is made to fix the main cover 15 and the secondary cover 16 together, thereby using the rubber pad 19 to increase friction to prevent the movable block 10 from moving accidentally.

[0022] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A steel structure connection device for tunnels with an adjustable contact surface angle, characterized in that, include: A circular plate (1) and a steel frame (101) are connected. A screw (2) is rotatably connected to the top of the circular plate (1). Fixed rods (3) are connected to both sides of the circular plate (1). A connecting plate (4) is rotatably connected to the circular plate (1) through the fixed rods (3). A connecting sleeve (5) is connected to the connecting plate (4). Fixed holes (6) and fixed strip holes (7) are opened on both sides of the connecting plate (4). The connecting plate (4) is bolted to the steel frame (101). A groove (8) is provided on the top of the connecting plate (4). A connecting rod (9) is connected in the groove (8). A movable block (10) is slidably installed through the screw (2). A threaded sleeve (11) is fixedly installed in the movable block (10). Connecting rods 2 (12) are connected to both sides of the movable block (10). Hinges 13 are rotatably connected to both sides of the movable block (10) via connecting rods 2 (12). Slots 14 are provided on the movable block (10). A main cover (15) is installed on one side of the movable block (10) via slots 14. A secondary cover (16) is installed on the other side of the movable block (10) via slots 14. Insert plates 17 are connected to both the main cover (15) and the secondary cover (16). Arc ends (18) are connected to both sides of the main cover (15) and the secondary cover (16). Rubber pads (19) are connected to the inner wall of the arc ends (18). Half-side threads (20) are provided on the wall of the arc ends (18).

2. The tunnel steel structure connection device with adjustable contact surface angle according to claim 1, characterized in that, The connecting sleeve (5) is rotatably connected to the fixed rod (3), and the end of the hinge rod (13) away from the connecting rod two (12) is rotatably connected to the connecting rod one (9).

3. The tunnel steel structure connection device with adjustable contact surface angle according to claim 1, characterized in that, Two threaded rings (21) are fitted on the screw (2), and the two threaded rings (21) are respectively positioned above and below the movable block (10). The half-side threads (20) of the arc ends (18) on both sides of the main cover (15) and the half-side threads (20) of the arc ends (18) on both sides of the secondary cover (16) together form a complete thread and are threadedly engaged with the threaded rings (21).

4. The tunnel steel structure connection device with adjustable contact surface angle according to claim 1, characterized in that, A strong magnetic plate (22) is connected to the wall of the slot (14), and the insert plate (17) is inserted into the slot (14).

5. A tunnel steel structure connection device with adjustable contact surface angle according to claim 4, characterized in that, One side of the insert plate (17) is connected to a strong magnetic plate two (23), and the strong magnetic plate one (22) and the strong magnetic plate two (23) are magnetically attracted to each other.

6. The tunnel steel structure connection device with adjustable contact surface angle according to claim 1, characterized in that, The threaded sleeve (11) is threadedly engaged with the screw (2), and one end of the screw (2) is connected to a connecting block (24), which has anti-slip texture.

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