Fixing device for I-shaped beam and back arris of creeping formwork

Abstract

The utility model provides a fixing device for a creeping formwork I beam and a back arris, which comprises a mounting plate and a nut, one end of the mounting plate is vertically and downwards provided with a first connecting plate, the other end of the mounting plate is vertically and downwards provided with a second connecting plate, two ends of the bottom of the second connecting plate are provided with square notches, and the first connecting plate and the second connecting plate are connected through the nut. A fixing screw penetrates through the middle of the mounting plate, one end of the fixing screw vertically penetrates through the mounting plate downwards and then is provided with a clamping assembly used for clamping the two steel channels, and a nut is connected to the fixing screw in a screwed mode and located on the side, away from the clamping assembly, of the mounting plate. The problem that in the prior art, after opposite-pull screws are arranged between steel channels for connecting and reinforcing a plurality of I-beams, follow-up dismounting of the steel channels is tedious is solved.

Description

Technical Field

[0001] This utility model relates to the field of climbing formwork fixing technology, and in particular to a fixing device for the I-beam and back rib of climbing formwork. Background Technology

[0002] Climbing formwork is a commonly used formwork support system in building construction, especially suitable for high-rise buildings and bridge construction. In the construction of climbing formwork, it is necessary to erect formwork and pour concrete. Multiple reinforcing beams and back ribs need to be set on the outside of the formwork to enhance the stability and load-bearing capacity of the formwork. These reinforcing beams and back ribs can effectively disperse the pressure generated during concrete pouring and prevent the formwork from deforming due to its own weight or the lateral pressure of the concrete.

[0003] Currently, when reinforcing formwork, I-beams are often used to tightly attach to the formwork. Two parallel channel steels (i.e., back braces) are then installed perpendicularly to the I-beams on the side of the I-beams away from the formwork to fix them in place, thus achieving both lateral and longitudinal reinforcement of the formwork. To improve the reinforcement effect and connect multiple I-beams, tie rods are also needed to connect the two parallel channel steels. After the concrete inside the formwork reaches the design strength, the I-beams and channel steels outside the formwork need to be removed. However, the method of connecting the two channel steels with tie rods is cumbersome and inefficient when removing the channel steels. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a fixing device for the I-beams and back ribs of climbing formwork, which solves the problem that in existing technologies, after setting tie rods between the channel steels that connect and reinforce multiple I-beams, the subsequent disassembly of the channel steels is quite cumbersome.

[0005] According to an embodiment of the present invention, a fixing device for climbing formwork I-beams and back ribs includes a mounting plate and a nut. One end of the mounting plate is provided with a first connecting plate vertically downward, and the other end of the mounting plate is provided with a second connecting plate vertically downward. Both ends of the bottom of the second connecting plate are provided with square notches. A fixing screw is passed through the middle of the mounting plate. One end of the fixing screw passes vertically downward through the mounting plate and is provided with a clamping assembly for clamping two channel steels. The nut is screwed onto the fixing screw and is located on the side of the mounting plate away from the clamping assembly.

[0006] Compared with the prior art, this utility model has the following advantages: by abutting two channel steels on one side of multiple I-beams, the channel steels connect the multiple I-beams together, and the first connecting plate and the second connecting plate abut against the lower flange of the I-beam and the channel steel respectively, the two channel steels are arranged opposite each other and the right-angled side of the channel steel facing the second connecting plate is inserted into the square notch, and the two channel steels are clamped by the clamping assembly, so that both channel steels are fixed to the I-beams. At the same time, the distance between the two long rods is limited by the square notch on the second connecting plate, eliminating the need to use tie rods to tie the two channel steels together again, and making subsequent disassembly more convenient.

[0007] Furthermore, the clamping assembly includes: two clamping jaws, both of which are movably mounted on the fixing screw, and each clamping jaw has a hook at the end away from the fixing screw.

[0008] Furthermore, it also includes two adjusting screws, which are symmetrically arranged at both ends of the bottom of the first connecting plate. Both ends of the bottom of the first connecting plate are provided with threaded grooves for the adjusting screws to be screwed in.

[0009] In another embodiment of this utility model, it also includes two adjusting screws, which are symmetrically and through the two ends of the first connecting plate, and each adjusting screw is screwed to the first connecting plate.

[0010] Furthermore, each adjusting screw has a rubber pad covering the end furthest from the first connecting plate.

[0011] Furthermore, a square block is fixed on the outer wall of each adjusting screw.

[0012] Furthermore, the first connecting plate and the second connecting plate are integrally formed with the mounting plate. Attached Figure Description

[0013] Figure 1 This is an installation diagram of an embodiment of the present utility model.

[0014] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0015] Figure 3 This is a front view of an embodiment of the present utility model.

[0016] Figure 4 This is an overall structural diagram of another embodiment of the present utility model.

[0017] In the above attached figures: 1. Mounting plate; 2. First connecting plate; 3. Second connecting plate; 4. Square notch; 5. Fixing screw; 6. Nut; 7. Clamping claw; 8. Hook; 9. Adjusting screw; 10. Rubber pad; 11. Square block; 12. Channel steel; 13. I-beam. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0019] like Figure 1-3 As shown in the figure, this utility model embodiment proposes a fixing device for the I-beam 13 and back rib of the climbing formwork, including a mounting plate 1 and a nut 6. A first connecting plate 2 is vertically downward at one end of the mounting plate 1, and a second connecting plate 3 is vertically downward at the other end of the mounting plate 1. Square notches 4 are opened at both ends of the bottom of the second connecting plate 3. A fixing screw 5 passes through the middle of the mounting plate 1. One end of the fixing screw 5 vertically downward through the mounting plate 1 and is provided with a clamping assembly for clamping the two channel steels 12. The nut 6 is screwed onto the fixing screw 5 and is located on the side of the mounting plate 1 away from the clamping assembly. Currently, the fixing methods for the I-beam 13 and the formwork include pre-welding, connecting the I-beam 13 to the formwork with screws, or directly supporting one end of the I-beam 13 on the ground. In this embodiment, when fixing the I-beam 13 to the back rib, the back rib consists of two symmetrically arranged channel steels 12. The two channel steels 12 are arranged opposite each other, and their slotting directions are opposite to each other. One side of the multiple I-beams 13 is tightly attached to the side wall of the template to be reinforced, that is, the upper flange of the I-beam 13 is tightly attached to the side wall of the template. Then, the two channel steels 12 are perpendicular to the I-beam 13 and tightly attached to the I-beam 13. Then, the bottom of the first connecting plate 2 on one side of the mounting plate 1 abuts against the lower flange of the I-beam 13, and the bottom of the second connecting plate 3 on the other side of the mounting plate 1 abuts against the top of the two channel steels 12 located at the bottom of the I-beam 13. The two channel steels 12 are arranged parallel to each other on one side of the I-beam 13, and their slotting directions are opposite to each other, so that the corners of the top of the two channel steels 12 are respectively locked onto the two The two channel steels 12 are connected by a square notch 4, which restricts the distance between them through the second connecting plate 3. This also restricts the freedom of the two channel steels 12 in the lateral and vertical directions, improving the stability of the connection between the channel steel 12 and the I-beam 13. Finally, by rotating the nut 6, the nut 6 is screwed into the fixing screw 5, which moves the fixing screw 5 toward the mounting plate 1. This causes the clamping component on the fixing screw 5 to move until the clamping component clamps the two channel steels 12 toward each other, so that the right-angled sides of the two channel steels 12 are engaged in the two square notches 4. This completes the fixing of the channel steel 12 and the I-beam 13. With this device, the connection and reinforcement between two channel steels 12 and multiple I-beams 13 is faster, and there is no need to set tie rods between the two channel steels 12, making disassembly more convenient.

[0020] like Figure 1-3As shown, the clamping assembly further includes: a clamping claw 7, which consists of two pieces. Both clamping claws 7 are movably sleeved on the fixing screw 5, and each clamping claw 7 has a hook 8 at the end away from the fixing screw 5. Specifically, the end of the fixing screw 5 is provided with a limiting block to prevent the two gripper pieces 7 from falling. The two gripper pieces 7 are provided with through holes for the fixing screw 5 to pass through. The through holes are slightly larger than the diameter of the fixing screw 5, so that the two gripper pieces 7 can tilt at an angle of movement. After the first connecting plate 2 and the second connecting plate 3 of the mounting plate 1 are respectively abutted against the lower flange of the I-beam 13 and the two channel steels 12, the two gripper pieces 7 are respectively placed on the opposite side of the two channel steels 12. The nut 6 is rotated. The rotation of the nut 6 drives the fixing screw 5 to move upward, and finally the hooks 8 on the two gripper pieces 7 are respectively engaged in the grooves of the two channel steels 12. The gripper pieces 7 hug the two channel steels 12 and make the right angle sides of the two channel steels 12 engage in the two square notches 4 of the second connecting plate 3. The square notches 4 limit the distance between the two channel steels 12, so that the two channel steels 12 do not need to be connected by tie screws.

[0021] like Figure 1-3 As shown, further, it also includes adjusting screws 9, of which there are two. The two adjusting screws 9 are symmetrically arranged at both ends of the bottom of the first connecting plate 2. Both ends of the bottom of the first connecting plate 2 are provided with threaded grooves for the adjusting screws 9 to be screwed in. Specifically, in this embodiment, both ends of the first connecting plate 2 are provided with threaded grooves. One end of the adjusting screw 9 is screwed into the threaded groove. By rotating the adjusting screw 9, the adjusting screw 9 is extended or shortened by a certain distance relative to the first connecting plate 2, so that the end of the adjusting screw 9 abuts against the lower flange of the I-beam 13, thereby accommodating lower flanges of different thicknesses.

[0022] like Figure 4 As shown, in another embodiment of this utility model, it also includes two adjusting screws 9, which are symmetrically and through-hole arranged at both ends of the first connecting plate 2. Each adjusting screw 9 is screwed to the first connecting plate 2. In this embodiment, the adjusting screw 9 passes through the first connecting plate 2. When rotating the adjusting screw 9, the worker can turn the adjusting screw 9 from one side of the mounting plate 1 to screw the adjusting screw 9 in or out, thereby adapting to different I-beams 13 and making the operation more convenient.

[0023] like Figure 1-4 As shown, furthermore, each adjusting screw 9 has a rubber pad 10 covering the end away from the first connecting plate 2. The rubber pad 10 can increase the friction between the adjusting screw 9 and the lower flange of the I-beam 13, making it less likely for the adjusting screw 9 to slip when it abuts against the lower flange of the I-beam 13, thereby making the device fix the I-beam 13 and the back rib more securely.

[0024] like Figure 1-4As shown, furthermore, a square block 11 is fixedly provided on the outer wall of each adjusting screw 9. The square block 11 facilitates the worker to rotate the adjusting screw 9, thereby changing the extension or retraction of the adjusting screw 9 in the threaded groove to adapt to different models of I-beams 13.

[0025] Furthermore, the first connecting plate 2 and the second connecting plate 3 are integrally formed with the mounting plate 1. The first connecting plate 2 and the second connecting plate 3 are integrally formed on both sides of the mounting plate 1, and the whole has a concave structure, which results in higher overall strength due to the integral forming.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fixing device for the I-beam and back rib of a climbing formwork, characterized in that, include: Mounting plate (1), with a first connecting plate (2) vertically downward at one end of the mounting plate (1) and a second connecting plate (3) vertically downward at the other end of the mounting plate (1). The bottom of the second connecting plate (3) has square notches (4) at both ends. A fixing screw (5) passes through the middle of the mounting plate (1). One end of the fixing screw (5) vertically downward passes through the mounting plate (1) and is provided with a clamping assembly for clamping the two channel steels. Nut (6) is screwed onto the fixing screw (5) and located on the side of the mounting plate (1) away from the clamping assembly.

2. The fixing device for the I-beam and back rib of the climbing formwork as described in claim 1, characterized in that, The clamping assembly includes: a clamping claw (7), which consists of two pieces. Both clamping claws (7) are movably sleeved on the fixing screw (5). Each clamping claw (7) has a hook (8) at the end away from the fixing screw (5).

3. The fixing device for the I-beam and back rib of the climbing formwork as described in claim 1, characterized in that: It also includes adjusting screws (9), there are two adjusting screws (9), the two adjusting screws (9) are symmetrically arranged at both ends of the bottom of the first connecting plate (2), and both ends of the bottom of the first connecting plate (2) are provided with threaded grooves for the adjusting screws (9) to be screwed in.

4. The fixing device for the I-beam and back rib of the climbing formwork as described in claim 1, characterized in that: It also includes adjusting screws (9), there are two adjusting screws (9), the two adjusting screws (9) are symmetrically and through the two ends of the first connecting plate (2), and each adjusting screw (9) is screwed to the first connecting plate (2).

5. A fixing device for I-beams and back ribs of climbing formwork as described in claim 3 or 4, characterized in that: Each adjusting screw (9) has a rubber pad (10) covering the end away from the first connecting plate (2).

6. The fixing device for the I-beam and back rib of the climbing formwork as described in claim 5, characterized in that: A square block (11) is fixed on the outer wall of each adjusting screw (9).

7. The fixing device for the I-beam and back rib of the climbing formwork as described in claim 1, characterized in that: The first connecting plate (2) and the second connecting plate (3) are integrally formed with the mounting plate (1).

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