Integrated stair formwork reinforcing device and construction method

Abstract

The invention discloses an integrated stair formwork reinforcing device and a construction method, and the integrated stair formwork reinforcing device comprises a shell which is used for containing internal components of the shell and is arranged in the length direction of a stair formwork; the adjusting assembly comprises two groups of first arm rods folded in the shell and oppositely arranged, second arm rods pivoted with the first arm rods, and third arm rods pivoted with the second arm rods; the unfolded first arm rod and the unfolded second arm rod are arranged in the width direction of the stair formwork. The unfolded third arm rod is perpendicular to the surface of the stair formwork and stretches across the thickness of the stair formwork; the fixing assembly comprises a plurality of opposite-pull screw rods and is used for connecting the third arm rods on the same side above or below the stair formwork; the unfolded third arm rod drives the first arm rod and the second arm rod to fix the stair formwork together. When the stair formwork does not need to be reinforced, the first arm rod, the second arm rod and the third arm rod are all contained in the shell. The stair formwork reinforcing device is simple in structure, capable of rapidly completing formwork reinforcing, high in construction efficiency and suitable for construction of stair formworks of different sizes.

Description

Technical Field

[0001] This application belongs to the technical field of construction engineering auxiliary equipment, and particularly relates to a novel foldable and storage-integrated staircase formwork reinforcement system and construction method, which is especially suitable for the reinforcement construction of staircase formwork in civil buildings. Background Art

[0002] As an important structure connecting different floors in a building, the construction quality of the staircase directly affects the safety and aesthetics of the building. Traditional staircase formwork reinforcement methods usually use iron wires and wooden boards to fix the steps, and use tie rods or step clamps to reinforce the side formwork. This method has the following problems:

[0003] (1) Low construction efficiency: Traditional methods require the combined use of multiple materials, the construction process is cumbersome, time-consuming and laborious, and have high requirements for the technical level of construction workers.

[0004] (2) Material waste: During concrete pouring, some reinforcement materials (such as iron wires and steel nails) will be covered and are difficult to recycle when removing the formwork, resulting in material waste.

[0005] (3) Affect the appearance quality: When removing the formwork, slag inclusion and material residue will damage the concrete surface and affect the overall aesthetics of the staircase.

[0006] (4) High cost: Traditional methods require a large amount of manpower and material input, increasing the construction cost. Summary of the Invention

[0007] This application provides an integrated staircase formwork reinforcement device and construction method, especially aiming to solve the technical problems of how to improve construction efficiency, reduce material waste, lower costs, and ensure the appearance quality of staircase concrete.

[0008] To solve at least one of the above technical problems, the technical solution adopted in this application is:

[0009] An integrated staircase formwork reinforcement device, comprising:

[0010] A housing for storing its internal components and arranged along the length direction of the staircase formwork;

[0011] An adjustment component, including two groups of first arms folded in the housing and placed opposite to each other, a second arm pivotally connected to the first arm, and a third arm pivotally connected to the second arm; After unfolding, the first arm and the second arm are configured across the width direction of the staircase formwork; After unfolding, the third arm is perpendicular to the staircase formwork surface and configured across the thickness of the staircase formwork;

[0012] A fixing component, including a number of tie rods for connecting the third arms on the same side above or below the staircase formwork;

[0013] The third boom drives the first boom and the second boom to fix the staircase formwork together; when the staircase formwork does not need to be strengthened, the first boom, the second boom and the third boom are all stored in the housing.

[0014] Further, the length direction of the housing is configured as an open through-groove structure; the width of the housing is not less than the sum of the widths of the two first booms folded therein.

[0015] Further, two independently arranged first booms are provided at each end of the housing, and the first booms are pivotally connected to the housing through a first rotating shaft; the maximum outward expansion angle of the first booms is 90°.

[0016] Further, the second boom is pivotally connected to the end of the first boom away from the first rotating shaft through a second rotating shaft; it can rotate 360° along the second rotating shaft; the second boom can be folded inside the first boom.

[0017] Further, a through-hole surface is provided in the thickness direction of the second boom, and symmetric long holes are provided on its length side surface. The third boom passes through the through-hole surface and is cross-connected to the second boom through a rotating rod; when the third boom does not work, it is horizontally stored in the through-hole surface; when the third boom works, it is arranged perpendicular to the second boom through the rotating rod.

[0018] Further, in the second boom, a straight sawtooth track is provided on one side of the long hole, and a sliding groove is provided on the other side of the long hole; one end of the rotating rod is provided with a gear meshing with the sawtooth track, and the other end is provided with a roller slidably matched with the sliding groove; the third boom can be adjusted by the cooperation of the gear and the sawtooth track, and the roller and the sliding groove to adjust the total length of the cooperation and extension of the first boom, the second boom and the tension rod.

[0019] Further, an adjustment hole for cooperating with the rotating rod is provided on the third boom, which is configured in the width direction in the middle of the third boom, and the length of the adjustment hole is greater than the thickness of the second boom.

[0020] Further, mounting strip holes through which the tension rod passes are respectively provided at both ends of the length plane of the third boom. Through the cooperation of the tension rod and the mounting strip holes, the third boom can span the thickness of the staircase formwork to strengthen the staircase formwork.

[0021] Further, there are four groups of the tension rods; each first boom is configured with a second boom and a third boom.

[0022] A construction method using an integrated staircase formwork reinforcement device as described above includes the following steps:

[0023] Step 1: After the erection of the supporting scaffolding and the erection of the staircase formwork are completed, prepare the reinforcement device;

[0024] Step 2: Dial four arm rods 1 outwards by 90°, and make them rotate and unfold around the rotating shaft 1;

[0025] Step 3: Dial four arm rods 2 outwards by 180°, and make them rotate and unfold around the rotating shaft 2;

[0026] Step 4: Dial four arm rods 3 downwards to make them perpendicular to the arm rods 2;

[0027] Step 5: Control the rotation of the rotating rod and adjust the horizontal position of the arm rod 3 according to the width of the staircase formwork;

[0028] Step 6: Adjust the up-and-down position of the arm rod 3 according to the height of the staircase formwork, and then pass through the tension rod and tighten it to fix the staircase formwork;

[0029] Step 7: Pour concrete to form a staircase of concrete structure;

[0030] Step 8: Dismantle the reinforcement device and store it up to prepare for the reinforcement of the next group of staircase formwork.

[0031] An integrated staircase formwork reinforcement device designed by the present application has a simple structure and convenient operation, can quickly complete formwork reinforcement, and has high construction efficiency; the height and width of the reinforcement device can be adjusted, which is suitable for the construction of staircase formworks of different sizes and has a wide application range; it can not only be reused, avoiding the waste of materials such as iron wires and steel nails in the traditional method; but also avoid slag inclusion and material residue during formwork removal, ensuring the beauty of the staircase concrete surface; reducing the input of manpower and materials and lowering the construction cost. The present application also proposes a construction method using the integrated staircase formwork reinforcement device. Description of the Drawings

[0032] Figure 1 is a three-dimensional view of the reinforcement device in the present application when it is unfolded;

[0033] Figure 2 is a three-dimensional view of the reinforcement device in the present application when it is stored;

[0034] Figure 3 is a perspective top view of the reinforcement device in the present application when it is stored;

[0035] Figure 4 is a state diagram of the arm rod 1 in the present application when it is unfolded;

[0036] Figure 5 is a schematic diagram of the cooperation between the arm rod 1 and the housing in the present application;

[0037] Figure 6It is the state diagram when the second arm of this application is unfolded;

[0038] Figure 7 It is the state diagram when the third arm of this application is unfolded;

[0039] Figure 8 It is the schematic diagram of the cooperation between the third arm and the second arm when the third arm of this application is unfolded;

[0040] Figure 9 It is the three-dimensional diagram when the reinforcement device of this application reinforces the staircase formwork.

[0041] In the figure:

[0042] 10. Housing 20. Adjustment component 21. First arm

[0043] 22. Second arm 23. Third arm 24. First rotating shaft

[0044] 25. Second rotating shaft 26. Rotating rod 27. Serrated track

[0045] 28. Gear 30. Fixing component 31. Tie rod

[0046] 40. Staircase formwork 50. Scaffold 60. Concrete structure Detailed implementation mode

[0047] The following combines the attached drawings and specific embodiments to elaborate on this application in detail.

[0048] This embodiment proposes an integrated staircase formwork reinforcement device, as Figure 1 、 9 shown, including a housing 10 for accommodating its internal components and arranged along the length direction of the staircase formwork 40, an adjustment component 20 for adjusting the reinforcement length, and a fixing component 30 for connecting the adjustment component 20 and the staircase formwork 40 into one body.

[0049] As Figure 2-8As shown in the figure, the adjustment component 20 includes two sets of first arms 21 that are folded inside the housing 10 and placed opposite to each other, a second arm 22 pivotally connected to the first arm 21, and a third arm 23 pivotally connected to the second arm 22. Among them, the number of each set of first arms 21 is two, and each first arm 21 is configured with a second arm 22 and a third arm 23. That is, in the entire adjustment component 20, there are four first arms 21, four second arms 22, and four third arms 23. The first arm 21 and the second arm 22, and the second arm 22 and the third arm 23 are pivotally connected to each other, which is easy to fold or unfold, convenient for storage, and easy to adjust its spanning length range. The symmetrically arranged structure is not only simple in structure but also convenient to operate. After unfolding, the first arm 21 and the second arm 23 are arranged across the width direction of the stair formwork; after unfolding, the third arm 23 is perpendicular to the stair formwork surface and spans the thickness of the stair formwork, so that the stair formwork can be fixed together, and the formwork reinforcement can be quickly completed with high construction efficiency. The fixing component 30 includes a number of tie rods 31 for connecting the third arms 23 on the same side above or below the stair formwork 40.

[0050] As Figure 2-3 shown, the length direction of the housing 10 is configured as an open slot structure, which is convenient for storing the adjustment component 20. And the width of the housing 10 is not less than the sum of the widths of two juxtaposed first arms 21 folded therein, aiming to ensure that the two juxtaposed first arms 21 can be completely stored in the housing 10, improve the safety of storage, and be convenient for carrying.

[0051] As Figure 4-5 shown, at each end of the housing 10, there are two independently arranged first arms 21. The first arm 21 is pivotally connected to the housing 10 through a first rotating shaft 24. The first rotating shaft 24 is perpendicular to the length of the housing 10. Then, the first arm 21 can rotate outward relative to the axis of the first rotating shaft 24, and the rotation angle range is 0 - 90°, and its maximum rotation angle is 90°.

[0052] As Figure 6 shown, the second arm 22 is pivotally connected to the end of the first arm 21 away from the first rotating shaft 21 through a second rotating shaft 25, and it can rotate 360° along the second rotating shaft 25; the second arm 22 can be folded inside the first arm 21.

[0053] As Figure 7 shown, a through-hole surface is provided in the thickness direction of the second arm 22, and symmetric long holes are provided on its length side surface. The third arm 23 passes through the through-hole surface and is cross-connected to the second arm 22 through a rotating rod 26. When the third arm 23 is not working, it is horizontally stored in the through-hole surface; when the third arm 23 is working, it is arranged perpendicular to the second arm 22 through the rotating rod 26.

[0054] As Figure 8As shown in the figure, in the second arm 22, a straight serrated track 27 is provided on one side of the long strip hole, and a sliding groove is provided on the other side of the long strip hole; one end of the rotating rod 26 is provided with a gear 28 meshing with the serrated track 27, and the other end is provided with a roller slidingly engaged with the sliding groove. The third arm 23 can move in the length direction of the second arm 22 through the cooperation of the gear 28 and the serrated track 27, and the roller and the sliding groove (the attached drawing is omitted), so as to adjust the total extended length of the cooperation between the first arm 21 and the second arm 22 and the tension rod 31.

[0055] The third arm 23 is provided with an adjustment hole cooperating with the rotating rod 26, which is configured in the width direction in the middle of the third arm 23, and the length of the adjustment hole is greater than the thickness of the second arm, so as to increase the vertical position of the third arm 23, so that the tension rod 31 can adjust the cooperation position according to the thickness of the stair formwork 40.

[0056] Furthermore, mounting strip holes through which the tension rod 31 passes are respectively provided at both ends of the length plane of the third arm 23, and the end of the tension rod 31 is fixed by a nut. Through the cooperation of the tension rod 31 and the mounting strip holes, the third arm 23 can span the thickness of the stair formwork 40 to reinforce the stair formwork. In this embodiment, each fixing device is provided with four groups of tension rods 31.

[0057] As Figure 9 shown, each stair formwork 40 is provided with at least two fixing devices. It can be seen from the figure that the housing 10 is arranged along the length direction of the stair formwork 40, and the first arm 21 and the second arm 22 are driven by the unfolded third arm 23 to fix the stair formwork 40 together; when the stair formwork 40 does not need to be reinforced, the first arm 21, the second arm 22 and the third arm 23 are all received in the housing 10.

[0058] During reinforcement, the lower part of the stair formwork 40 is supported by the scaffolding 50, its two ends are lapped on the concrete structure 60, and itself is tied by at least two groups of reinforcement devices to be placed on the scaffolding 50 completely and safely. After the reinforcement device is fixed, concrete can be poured to form a concrete-structured stair.

[0059] Through the rotation between the interconnected first arm 21, second arm 22 and third arm 23 around the first rotating shaft 24, the second rotating shaft 25, and the rotating rod 26, the unfolding operation is carried out; and the stair formwork is reinforced by the tension rod to ensure good construction during the concrete pouring operation of the stair, reduce the fixing operation of iron wires and iron nails, and prevent slag inclusion and anti-rust treatment in the later-stage stair concrete components. At the same time, this reinforcement device can protect the surface of the stair concrete components to the greatest extent and prevent damage to the appearance quality of the concrete when the formwork is removed after the concrete pouring is completed.

[0060] A construction method using an integrated stair formwork reinforcement device as described above, such asFigure 9 As shown in the figure, it includes the following steps:

[0061] Step 1: After the erection of the support scaffold 50 and the erection of the staircase formwork 40 are completed, prepare the reinforcement device;

[0062] Step 2: Dial the four first arms 21 outward by 90°, and rotate them around the first rotating shaft 24 to expand;

[0063] Step 3: Dial the four second arms 22 outward by 180°, and rotate them around the second rotating shaft 25 to expand;

[0064] Step 4: Dial the four third arms 23 downward so that they are perpendicular to the second arm 25;

[0065] Step 5: Control the rotation of the rotating rod 26, and adjust the horizontal position of the third arm 23 according to the width of the staircase formwork 40;

[0066] Step 6: Adjust the vertical position of the third arm 23 according to the height of the staircase formwork 40, and then pass through the tie rod 31 and tighten it to fix the staircase formwork 40;

[0067] Step 7: Pour concrete to form a staircase of concrete structure;

[0068] Step 8: Dismantle the reinforcement device and store it up, and prepare for the reinforcement of the next group of staircase formwork.

[0069] An integrated staircase formwork reinforcement device designed by the present application has a simple structure, convenient operation, can quickly complete formwork reinforcement, and has high construction efficiency; the height and width of the reinforcement device can be adjusted, which is suitable for the construction of staircase formworks of different sizes and has a wide application range; it can not only be reused, avoiding the waste of materials such as iron wires and steel nails in the traditional method; but also avoid slag inclusion and material residue during formwork removal, ensuring the beauty of the staircase concrete surface; reducing the input of manpower and materials and lowering the construction cost. The present application also proposes a construction method using this integrated staircase formwork reinforcement device.

[0070] The above has described the embodiments of the present application in detail. The above content is only the preferred embodiments of the present application and cannot be considered as limiting the scope of implementation of the present application. All equal changes and improvements made according to the scope of the present application should still fall within the scope covered by the patent of the present application.

Claims

1. An integrated staircase formwork reinforcement device, characterized in that, Comprising: A housing for accommodating its internal components and arranged along the length direction of the stair formwork; An adjustment assembly, including two groups of first arms folded in the housing and placed opposite to each other, a second arm pivotally connected to the first arm, and a third arm pivotally connected to the second arm; the unfolded first arm and the second arm are configured across the width direction of the stair formwork; the unfolded third arm is perpendicular to the stair formwork surface and configured across the thickness of the stair formwork; A fixing assembly, including a number of tie rods, for connecting the third arms on the same side above or below the stair formwork; The unfolded third arms drive the first arms and the second arms to fix the stair formwork together; when the stair formwork does not need to be reinforced, the first arms, the second arms, and the third arms are all accommodated in the housing.

2. The integrated staircase formwork reinforcement device according to claim 1, characterized in that, The length direction of the housing is configured as an open slot structure; the width of the housing is not less than the sum of the widths of the two first arms folded therein.

3. An integrated staircase formwork reinforcement device according to claim 1 or 2, characterized in that, At each end of the housing, there are two independently arranged first arms, and the first arms are pivotally connected to the housing through a first rotating shaft; the maximum outward unfolding angle of the first arms is 90°.

4. The one-piece staircase formwork reinforcement device according to claim 3, characterized in that, The second arm is pivotally connected to the end of the first arm away from the first rotating shaft through a second rotating shaft; it can rotate 360° along the second rotating shaft; the second arm can be folded within the first arm.

5. An integrated staircase formwork reinforcement device according to claim 4, characterized in that, On the thickness direction of the second arm, there is a through-hole surface, and symmetric long holes are provided on its length side surface. The third arm passes through the through-hole surface and is cross-connected to the second arm through a rotating rod; when the third arm is not working, it is horizontally accommodated in the through-hole surface; when the third arm is working, it is perpendicular to the second arm through the rotating rod.

6. The integrated staircase formwork reinforcement device according to claim 5, characterized in that, In the second arm, a straight sawtooth track is provided on one side of the long hole, and a sliding groove is provided on the other side of the long hole; one end of the rotating rod is provided with a gear meshing with the sawtooth track, and the other end is provided with a roller slidingly matched with the sliding groove; the third arm can be adjusted by the cooperation of the gear and the sawtooth track, and the roller and the sliding groove to adjust the total length of the cooperation and extension of the first arm, the second arm, and the tie rod.

7. An integrated staircase formwork reinforcement device according to claim 5 or 6, characterized in that, The third arm is provided with an adjustment hole for cooperating with the rotating rod, which is configured in the width direction in the middle of the third arm, and the length of the adjustment hole is greater than the thickness of the second arm.

8. The one-piece staircase formwork reinforcement device according to claim 7, characterized in that, At both ends of the length plane of the third arm, there are mounting strip holes through which the tie rods pass. Through the cooperation of the tie rods and the mounting strip holes, the third arm can cross the thickness of the stair formwork to reinforce the stair formwork.

9. An integrated staircase formwork reinforcement device according to any one of claims 1-2, 4-6, 8, characterized in that There are four groups of tie rods; each first arm is configured with one second arm and one third arm.

10. A construction method using an integral staircase formwork reinforcement device as described in any one of claims 1-9, characterized in that, Including the following steps: Step 1: After completing the erection of the support scaffold and the erection of the stair formwork, prepare the reinforcement device; Step 2: Dial the four first arms outward by 90° to make them rotate and unfold around the first rotating shaft; Step 3: Dial the four second arms outward by 180° to make them rotate and unfold around the second rotating shaft; Step 4: Dial the four third arms downward to make them perpendicular to the second arms; Step 5: Control the rotation of the rotating rod and adjust the horizontal position of the third arm according to the width of the stair formwork; Step 6: Adjust the up and down position of the boom rod three according to the height of the stair formwork, and then pass through the tie rod Tighten and fix it to fix the stair formwork; Step 7: Pour concrete to form a stair of concrete structure; Step 8: Dismantle the reinforcement device and store it up, and prepare for the reinforcement of the next group of stair formworks.

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