Building construction template waste removing device

Abstract

The invention relates to the technical field of building construction equipment, in particular to a building construction formwork waste removing device which comprises a rack fixed to the outer portion of an arc-shaped steel formwork, a displacement mechanism is arranged on the rack, and the face, close to the inner wall of the steel formwork, of the displacement mechanism is connected with a movable and length-adjustable supporting frame through a moving plate. The supporting frame comprises an upper rod and a lower rod which can be deformed into an arc-shaped structure along the inner wall of the steel formwork, a plurality of cleaning brushes of the same structure are evenly arranged on the upper rod and the lower rod at intervals, the cleaning brushes on the upper rod and the cleaning brushes on the lower rod are arranged in a staggered mode, and when the displacement mechanism drives the upper rod and the lower rod to move, the cleaning brushes clean the inner wall of the steel formwork and clean the steel formwork. The movable plate is connected with the supporting frame through a telescopic movable rod, an air bag block used for supporting deformation of the upper rod and the lower rod is arranged on the movable plate, an air pump communicating with the air bag block is arranged on the rack, and the cleaning efficiency of the steel formwork for building construction can be improved.

Description

Technical Field

[0001] This application relates to the field of construction equipment technology, and in particular to a waste removal device for construction formwork. Background Technology

[0002] In bridge construction, curved steel formwork is widely used in the casting and shaping of curved concrete structures such as bridge piers, arch bridges, and curved beams. The flatness of the inner wall of the curved steel formwork directly determines the surface quality of the poured concrete. Therefore, after each pouring operation, it is essential to thoroughly clean the residual concrete waste, cement slurry, and impurities on the inner wall of the formwork to ensure the construction quality of subsequent pouring operations. However, the cleaning of existing curved steel formwork faces many technical challenges: the inner wall of the curved steel formwork is an irregular curved surface, and traditional cleaning methods, such as manual hand-held wire brushes or flatbed cleaning equipment, cannot fully adhere to the curved inner wall, resulting in many cleaning dead spots and making it difficult to completely remove residual waste; the curved steel formwork used in bridge construction is usually large in size, making manual cleaning inconvenient and requiring repeated wiping and tapping. For firmly attached concrete waste, the cleaning cycle is long, and it is difficult to ensure consistent cleaning, affecting the subsequent construction progress; in traditional cleaning methods, the hard contact between tools and the inner wall of the formwork or uneven cleaning force can easily cause scratches and deformation of the inner wall of the formwork, reducing the service life of the formwork and thus affecting the accuracy of concrete pouring. Summary of the Invention

[0003] In order to improve the cleaning efficiency of steel formwork used in building construction, this application provides a waste removal device for building construction formwork.

[0004] The construction formwork waste removal device provided in this application adopts the following technical solution: it includes a frame fixed to the outside of an arc-shaped steel formwork, a displacement mechanism is provided on the frame, and a movable and length-adjustable support frame is connected to the side of the displacement mechanism near the inner wall of the steel formwork through a moving plate. The support frame includes an upper rod and a lower rod that can be deformed into an arc structure along the inner wall of the steel formwork. Multiple cleaning brushes with the same structure are evenly spaced on the upper rod and the lower rod. The cleaning brushes on the upper rod and the lower rod are staggered. When the displacement mechanism moves the upper rod and the lower rod, the cleaning brushes completely clean the inner wall of the steel formwork. The moving plate is connected to the support frame through a telescopic moving rod. An airbag block for supporting the deformation of the upper rod and the lower rod is provided on the moving plate. An air pump communicating with the airbag block is provided on the frame.

[0005] Optionally, both the upper and lower rods include a central block located in the middle, and the two central blocks are connected by a central rod. Both ends of the two central blocks are provided with connecting blocks. The central blocks and connecting blocks are connected by a rotating shaft and a torsion spring. There are multiple connecting blocks connected end to end. Adjacent connecting blocks are connected by a rotating shaft and a torsion spring. The connecting blocks on the upper and lower rods are staggered, and the cleaning brush is fixed on the central block and the connecting blocks.

[0006] Optionally, the frame includes a top rod and a bottom rod with the same structure. Both the top rod and the bottom rod are U-shaped. Both the top rod and the bottom rod include fixed ends located at both ends. The fixed ends are provided with fasteners for fixing them to the steel template. An adjustable extension rod is provided between the two fixed ends. The extension rod includes a main rod located in the middle. The two ends of the main rod are provided with branch rods connected to the fixed ends.

[0007] Optionally, the displacement mechanism includes a screw-slider mechanism fixed in the middle of the frame. The frame is equipped with a motor for driving the screw to rotate. The slider is fixed with a movable plate by screws. When the screw-slider mechanism is working, the slider will drive the support frame and the cleaning brush to reciprocate on the inner wall of the steel template and clean the inner wall of the steel template. The movable plate includes a movable main plate fixedly connected to the slider. Movable subplates are slidably connected to both ends of the movable main plate.

[0008] Optionally, the movable rod is located in the middle of the movable plate, and the end of the movable rod away from the movable plate is connected to the central rod. An airbag column connected to the air pump is provided inside the movable rod. When the airbag column is inflated and causes the movable rod to extend, the central block will be pushed to the inner wall of the steel template, and the connecting block will be tightly attached to the inner wall of the steel template under the action of the torsion spring and the rotating shaft.

[0009] Optionally, there are two airbag blocks arranged symmetrically about the moving rod. An air pump connected to the airbag blocks is installed on the frame. When the airbag blocks are inflated, the connecting blocks will be squeezed against the inner wall of the steel template.

[0010] Optionally, a pad is provided at the end of the airbag block away from the moving plate, and a spring-loaded rope mechanism is provided on the moving plate. The rope of the spring-loaded rope mechanism is connected to the pad. When the airbag block is not inflated, the airbag block will be stored on the moving plate by the spring-loaded rope mechanism.

[0011] Optionally, the airbag block includes multiple airbag strips arranged sequentially in a direction away from the moving rod, and each airbag strip is connected to an air pump through an air tube.

[0012] Optionally, a guide rod parallel to the displacement mechanism is provided between the top rod and the bottom rod, and a guide ring that cooperates with the guide rod is provided on the moving plate.

[0013] In summary, this application includes the following beneficial technical effects: 1. The upper and lower rods of the support frame are connected by a central block, multiple connecting blocks, a rotating shaft, and a torsion spring. This allows for adaptive deformation of the curved inner wall of the arc-shaped steel template, ensuring that the cleaning brush fully adheres to the inner wall of the template. The connecting blocks of the upper and lower rods are staggered, and the corresponding cleaning brushes are also staggered. Combined with the reciprocating motion of the displacement mechanism, this achieves full coverage cleaning of the inner wall of the template. The airbag column inside the moving rod and the airbag block composed of multiple sets of airbag strips form a double-fitting driving structure. The airbag column pushes the central block to position itself, and the airbag strips squeeze the connecting blocks in sequence, further ensuring a tight fit between the cleaning brush and the arc-shaped inner wall. 2. The displacement mechanism adopts a screw-slider mechanism, which is driven by a motor to improve cleaning efficiency. The guide rod and guide ring work together to ensure the smooth movement of the moving plate and avoid uneven cleaning caused by shaking during the cleaning process. 3. The top and bottom rods of the frame are equipped with adjustable extension rods, which can flexibly adjust the frame span according to the size of the arc steel formwork and adapt to arc steel formwork of different diameters and lengths; the main moving plate and the moving sub-plate of the moving plate are slidably connected, and the length can be adjusted according to the size of the steel formwork to ensure the stress of the support frame; 4. A pad is provided at the end of the airbag block to prevent hard contact between the airbag block and the connecting block. The airbag block is automatically stored through a spring-loaded rope mechanism. When not in use, it can fit tightly against the moving plate. The airbag column and airbag block are connected to the air pump through a pressure switch. The fitting force can be adjusted by adjusting the inflation pressure. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the construction formwork waste removal device of this application; Figure 2 This is an enlarged view of section A in the structural diagram of the construction formwork waste removal device of this application; Figure 3 This is a structural diagram of the frame of the construction formwork waste removal device of this application; Figure 4 This is a structural diagram of the support frame for the construction formwork waste removal device of this application; Figure 5 This is an enlarged view of section B in the structural diagram of the support frame for the construction formwork waste removal device of this application; Figure 6 This is a structural diagram of the support frame for the construction formwork waste removal device in use, as described in this application.

[0015] Reference numerals: 1. Frame, 2. Displacement mechanism, 3. Support frame, 4. Upper rod, 5. Lower rod, 6. Cleaning brush, 7. Moving plate, 8. Moving rod, 9. Airbag block, 10. Center block, 11. Center rod, 12. Connecting block, 13. Rotating shaft, 14. Top rod, 15. Bottom rod, 16. Fixed end, 17. Main rod, 18. Sub-rod, 19. Slider, 20. Moving main plate, 21. Moving sub-plate, 22. Pad, 23. Wind-up rope mechanism, 24. Rope, 25. Airbag strip, 26. Guide rod, 27. Guide ring. Detailed Implementation

[0016] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0017] This application discloses a device for removing construction formwork waste. For example... Figure 1-4As shown, the system includes a frame 1 fixed to the outside of an arc-shaped steel template. The frame 1 includes a top rod 14 and a bottom rod 15 with identical structures, both in a U-shape. Each top rod 14 and bottom rod 15 includes fixed ends 16 at both ends, with screws securing the fixed ends 16 to the steel template. An adjustable extension rod is provided between the two fixed ends 16. The extension rod includes a main rod 17 in the middle, with branch rods 18 slidably connected to both ends of the main rod 17 and connected to the fixed ends 16. The main rod 17 has a sliding groove for the branch rods 18 to move, and a fixing groove communicating with the sliding groove, forming a structure where a pin is inserted into the fixing groove to fix the relative positions of the main rod 17 and the branch rods 18. A displacement mechanism 2 is provided on the frame 1. The displacement mechanism 2 includes a screw-slider mechanism screwed to the middle position of the two main rods 17. A motor for driving the screw rotation is fixed to the frame 1 via screws on a motor mounting bracket. The displacement mechanism 2, near the inner wall of the steel template, is connected to a movable and adjustable support frame 3 via a movable plate 7. A slider 19 is fixed to the movable plate 7 with screws. When the screw-slider mechanism operates, the slider 19 drives the support frame 3 and cleaning brushes 6 to reciprocate along the inner wall of the steel template, cleaning the template. The movable plate 7 includes a movable main plate 20 fixedly connected to the slider 19. Movable subplates 21 are slidably connected to both ends of the movable main plate 20, and the main plate 20 and subplates 21 are connected by pins. The support frame 3 includes an upper rod 4 and a lower rod 5 that can deform into an arc shape along the inner wall of the steel template. Multiple identical cleaning brushes 6 are evenly spaced on the upper rod 4 and lower rod 5, and are staggered. When the displacement mechanism 2 moves the upper rod 4 and lower rod 5, the cleaning brushes 6 completely clean the inner wall of the steel template. A guide rod 26, parallel to the displacement mechanism 2, is screwed between the top rod 14 and the bottom rod 15. There are two guide rods 26, symmetrically arranged about the displacement mechanism 2. A guide ring 27, which works in conjunction with the guide rod 26, is provided on the moving plate 7. The moving main plate 20 is connected to the support frame 3 via a telescopic moving rod 8. An airbag block 9, which supports the deformation of the upper rod 4 and the lower rod 5, is provided on the moving main plate 20. An air pump, which communicates with the airbag block 9, is provided on the frame 1.

[0018] In one embodiment, according to the appendix Figure 4 and 5 As shown, both the upper rod 4 and the lower rod 5 include a central block 10 located in the middle. The two central blocks 10 are connected by a central rod 11, and each of the two central blocks 10 has a connecting block 12 at both ends. The central blocks 10 and the connecting blocks 12 are connected by a rotating shaft 13 and a torsion spring. There are multiple connecting blocks 12, which are connected end to end. Adjacent connecting blocks 12 are connected by a rotating shaft 13 and a torsion spring. Under normal conditions, the upper rod 4 and the lower rod 5 are arranged in a straight line. The connecting blocks 12 on the upper rod 4 and the lower rod 5 are staggered. The lengths of the central blocks 10 on the upper rod 4 and the lower rod 5 are different. The cleaning brush 6 is fixed to the central blocks 10 and the connecting blocks 12.

[0019] In one embodiment, according to the appendix Figure 2 As shown, the moving rod 8 is located in the middle of the moving plate 7. The end of the moving rod 8 away from the moving plate 7 is connected to the central rod 11. An airbag column connected to the air pump is installed inside the moving rod 8. The airbag column is existing technology. The airbag column is connected to the air pump through an air pipe and a pressure switch. When the airbag column is inflated and causes the moving rod 8 to extend, the central block 10 will be pushed to the inner wall of the steel template, and the connecting block 12 will be tightly attached to the inner wall of the steel template under the action of the torsion spring and the rotating shaft 13.

[0020] In one embodiment, according to the appendix Figure 6 As shown, there are two airbag blocks 9, symmetrically arranged about the moving rod 8. An air pump, which is in contact with the airbag blocks 9, is mounted on the frame 1. When the airbag blocks 9 are inflated, the connecting block 12 is pressed against the inner wall of the steel template. A pad 22 is provided at the end of the airbag block 9 furthest from the moving plate 7. A spring-loaded rope mechanism 23 is screwed onto the moving plate 7. The spring-loaded rope mechanism 23 is in the prior art. The rope 24 of the spring-loaded rope mechanism 23 is connected to the pad 22. When the airbag blocks 9 are not inflated, they are retracted onto the moving plate 7 by the spring-loaded rope mechanism 23. The airbag block 9 includes multiple airbag strips 25, which are in the prior art. These strips are arranged sequentially in the direction furthest from the moving rod 8. Each airbag strip 25 is connected to the air pump via an air tube and a pressure switch.

[0021] The implementation principle of the construction formwork waste removal device in this application embodiment is as follows: Based on the dimensions of the curved steel formwork to be cleaned, the extension lengths of the top rod 14 and the bottom rod 15 are adjusted to match the outer contour of the steel formwork. Subsequently, the fixed ends 16 of the top rod 14 and the bottom rod 15 are tightly fixed to the outer sides of the steel formwork using bolts at the fixed ends 16. The air pump on frame 1 is started, and air is pumped into the air chamber of the moving rod 8 through the air pipe. The expansion of the air chamber causes the moving rod 8 to extend, pushing the center block 10 connected to the center rod 11 towards the inner wall of the steel template until the center block 10 and the cleaning brush 6 are in contact with the inner wall of the template. At this time, the connecting block 12 of the upper rod 4 and the lower rod 5 begins to adapt to the inner curved surface of the arc-shaped steel template under the elastic force of the torsion spring and the rotation of the rotating shaft 13, thus initially achieving the contact of the connecting block 12. Continue to inflate the airbag strips 25 sequentially using the air pump. The airbag strips 25 expand sequentially in the direction away from the moving rod 8, and apply a uniform squeezing force to the connecting blocks 12 through the pads 22 at the ends of the airbag blocks 9, ensuring that all connecting blocks 12 are tightly attached to the inner wall of the steel template.

[0022] The servo motor of the displacement mechanism 2 is activated. The motor drives the lead screw to rotate through the coupling. The lead screw drives the slider 19 to move along the direction of the lead screw, which in turn drives the moving plate 7, the support frame 3, and the cleaning brush 6 to move linearly along the inner wall of the steel template. The motor drives the lead screw to rotate in both directions, realizing the reciprocating motion of the slider 19. During the reciprocating motion, the cleaning brush 6 scrapes and cleans the concrete waste, cement slurry, and other deposits on the inner wall of the steel template.

[0023] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for removing construction formwork waste, comprising a frame (1) fixed to the outside of a circular-arc-shaped steel formwork, characterized in that: The frame (1) is provided with a displacement mechanism (2), the displacement mechanism (2) is connected with a movable and length-adjustable support frame (3) through a moving plate (7) on the side close to the inner wall of the steel formwork, the support frame (3) comprises an upper rod (4) and a lower rod (5) which can be deformed into an arc structure along the inner wall of the steel formwork, a plurality of cleaning brushes (6) which are the same in structure are uniformly arranged on the upper rod (4) and the lower rod (5), the cleaning brushes (6) on the upper rod (4) and the lower rod (5) are arranged alternately, when the displacement mechanism (2) drives the upper rod (4) and the lower rod (5) to move, the cleaning brushes (6) can clean the inner wall of the steel formwork completely, the moving plate (7) is connected with the support frame (3) through an extensible moving rod (8), the moving plate (7) is provided with an air bag block (9) for supporting the deformation of the upper rod (4) and the lower rod (5), and the frame (1) is provided with an air pump which communicates with the air bag block (9).

2. The construction formwork waste removal apparatus of claim 1, wherein: The upper rod (4) and the lower rod (5) each comprise a center block (10) located at the middle position, the two center blocks (10) are connected through a center rod (11), the two ends of each of the two center blocks (10) are provided with a connecting block (12), the center block (10) and the connecting block (12) are connected through a rotating shaft (13) and a torsional spring, the connecting block (12) has a plurality of connecting blocks (12) which are connected in sequence, adjacent connecting blocks (12) are connected through a rotating shaft (13) and a torsional spring, the connecting blocks (12) on the upper rod (4) and the lower rod (5) are arranged alternately, and the cleaning brushes (6) are fixed on the center blocks (10) and the connecting blocks (12).

3. The construction formwork waste removal apparatus of claim 1, wherein: The frame (1) comprises top rods (14) and bottom rods (15) which are the same in structure, the top rods (14) and the bottom rods (15) each have a "U" type structure, the top rods (14) and the bottom rods (15) each comprise fixed ends (16) located at the two ends, the fixed ends (16) are provided with fixing members for fixing the fixed ends (16) to the steel formwork, and length-adjustable extension rods are arranged between the two fixed ends (16), the extension rod comprises a main rod (17) located at the middle, and branch rods (18) are arranged at the two ends of the main rod (17) and connected with the fixed ends (16).

4. The construction formwork waste removal apparatus of claim 1, wherein: The displacement mechanism (2) comprises a screw block mechanism fixed at the middle position of the frame (1), the frame (1) is provided with a motor for driving the screw to rotate, the moving plate (7) is fixed with a sliding block (19) through a screw, when the screw block mechanism works, the sliding block (19) drives the support frame (3) and the cleaning brushes (6) to reciprocate on the inner wall of the steel formwork and clean the inner wall of the steel formwork, the moving plate (7) comprises a moving main plate (20) fixedly connected with the sliding block (19), and moving branch plates (21) are slidably connected at the two ends of the moving main plate (20).

5. The construction formwork waste removal apparatus of claim 2, wherein: The moving rod (8) is arranged at the middle position of the moving plate (7), one end of the moving rod (8) away from the moving plate (7) is connected with the center rod (11), the moving rod (8) is internally provided with the air bag column communicated with the air pump, when the air bag column is inflated to drive the moving rod (8) to be elongated, the center block (10) will be pushed to the inner wall of the steel formwork and the connecting block (12) will be tightly attached to the inner wall of the steel formwork under the action of the torsion spring and the rotating shaft (13).

6. The architectural formwork waste removal apparatus of claim 1, wherein: The air bag block (9) is two and is symmetrically arranged with respect to the moving rod (8), the rack (1) is provided with the air pump communicated with the air bag block (9), when the air bag block (9) is inflated, the connecting block (12) will be pressed to the inner wall of the steel formwork.

7. The building formwork waste removal apparatus of claim 6, wherein: The one end of the air bag block (9) away from the moving plate (7) is provided with the cushion (22), the moving plate (7) is provided with the clock spring pulling rope mechanism (23), the rope (24) of the clock spring pulling rope mechanism (23) is connected with the cushion (22), when the air bag block (9) is not inflated, the air bag block (9) will be stored on the moving plate (7) by the clock spring pulling rope mechanism (23).

8. The construction formwork waste removal apparatus of claim 7, wherein: The air bag block (9) comprises the air bag strips (25), the air bag strips (25) are multiple and are sequentially arranged in the direction away from the moving rod (8), each air bag strip (25) is communicated with the air pump through the air pipe.

9. The construction formwork waste removal apparatus of claim 3, wherein: The guide rod (26) parallel to the displacement mechanism (2) is arranged between the top rod (14) and the bottom rod (15), the moving plate (7) is provided with the guide ring (27) cooperated with the guide rod (26).

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