Instrument for controlling thickness and flatness of cantilever floor slab

Abstract

The utility model relates to the field of constructional engineering equipment, and discloses an instrument for controlling the thickness and flatness of a cantilever floor slab. An adjusting rod and an air cylinder are hinged to the two sides of the upper surface of a fixed base respectively, a connecting sleeve is fixedly installed on the outer wall of the upper end of the adjusting rod, the end of an output shaft of the air cylinder is hinged to the outer wall of the connecting sleeve, sliding grooves are formed in the two sides of a fixed plate, and electric sliding blocks are slidably connected to the outer walls of the sliding grooves. A flatness measuring instrument is fixedly installed at the top of the electric sliding block, and a plurality of stand columns are fixedly installed on the two sides of the upper surface of the fixing plate. The flatness measuring instrument is driven by the electric sliding block to move along the fixed base, the measuring rod of the flatness measuring instrument measures the flatness of the I-shaped steel in the process, if the cantilever floor slab is not in a horizontal state, the air cylinder works to drive the adjusting rod to change the angle, and due to the fact that the fixed plate is fixedly installed at the bottom of the I-shaped steel, the flatness of the I-shaped steel is measured. When the adjusting rod moves, the I-shaped steel is driven by the adjusting rod to move along with the movement track of the adjusting rod, and therefore the flatness of the cantilever floor slab is adjusted.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering equipment technology, specifically an instrument for controlling the thickness and flatness of cantilevered floor slabs. Background Technology

[0002] In building construction, the quality control of cantilevered floor slabs is crucial, especially the control of slab thickness and flatness, which directly affects the safety of the building structure and its subsequent functionality. Traditional construction techniques face many challenges at the cantilevered I-beam locations. Due to the special structure of this location, conventional measurement methods are difficult to apply effectively, making it impossible to accurately measure the levelness of the bottom of the formwork.

[0003] Currently, common methods for controlling floor slab thickness, such as setting column-shaped concrete blocks on the formwork, are prone to tipping over during pouring at cantilevered I-beam locations due to space and structural constraints, thus losing their effectiveness in thickness control. While the rebar insertion method is relatively simple to operate, it has low precision and struggles to guarantee accurate thickness in the complex construction environment of cantilevered areas. Furthermore, measurement is extremely difficult during nighttime construction due to lighting limitations. Additionally, there is a lack of effective targeted adjustment methods for inconsistent formwork bottom elevations, forcing construction workers to rely on experience for rough adjustments. This not only consumes significant time and manpower but also fails to ensure that the floor slab flatness meets design and specification requirements.

[0004] Improper control of floor slab thickness can lead to significant waste of building materials and increased construction costs if the slab is too thick, while insufficient thickness may fail to meet structural load-bearing requirements, posing a major safety hazard to the building. Furthermore, substandard floor slab flatness can affect the quality of subsequent floor finishing work, such as uneven tile laying and hollow spots after wood flooring installation. In severe cases, it can even impact the overall aesthetics and functionality of the building. Therefore, developing an instrument capable of effectively controlling the thickness and flatness of cantilevered floor slabs is urgently needed. This is crucial for improving construction efficiency, ensuring construction quality, and reducing project costs. Utility Model Content

[0005] The purpose of this invention is to provide an instrument for controlling the thickness and flatness of cantilevered floor slabs in order to solve the problems mentioned above.

[0006] The technical solution adopted by this utility model is as follows: An instrument for controlling the thickness and flatness of cantilevered floor slabs includes a fixed base. An adjusting rod and a cylinder are respectively hinged to both sides of the upper surface of the fixed base. A connecting sleeve is fixedly installed on the outer wall of the upper end of the adjusting rod. The output shaft end of the cylinder is hinged to the outer wall of the connecting sleeve. A fixed plate is hinged to the top of the adjusting rod. Slide grooves are provided on both sides of the fixed plate. An electric slider is slidably connected to the outer wall of the slide groove. A flatness measuring instrument is fixedly installed on the top of the electric slider. Multiple columns are fixedly installed on both sides of the upper surface of the fixed plate.

[0007] By adopting the above technical solution, the fixing plate is fixedly installed on the bottom of the I-beam of the cantilever floor slab through the column. During installation, it is necessary to ensure that the fixing plate is in a horizontal state and that the measuring rod of the flatness measuring instrument is in contact with the lower wall of the I-beam. After installation, the flatness measuring instrument is moved along the fixed base by the electric slider. During this process, the measuring rod of the flatness measuring instrument measures the flatness of the I-beam. If the cantilever floor slab is not in a horizontal state, the angle can be changed by the operation of the cylinder to drive the adjusting rod. Since the fixing plate is fixedly installed on the bottom of the I-beam, when the adjusting rod moves, it drives the I-beam to move along its movement trajectory, thereby adjusting the flatness of the cantilever floor slab.

[0008] In a preferred embodiment, a thickness control plate is hinged to one side of the electric slider, a slider is slidably connected to the outer wall of the thickness control plate, and a limit plate is fixedly installed on one side of the slider.

[0009] By adopting the above technical solution, when it is necessary to control the thickness of the floor slab, the thickness control plate can be rotated, and then the slider can be pulled to move the limiting plate on its outer wall to a specified height, thereby controlling the thickness of the floor slab through the limiting plate.

[0010] In a preferred embodiment, a locking handle is threaded onto the outer wall of the column, and a friction block is fixedly installed on one side of the locking handle.

[0011] By adopting the above technical solution, the friction block is moved inward by rotating the locking handle, thereby fixing the fixing plate to the lower end of the I-beam.

[0012] In a preferred embodiment, a mounting plate is fixedly installed on one side of the fixed base, and anchor bolts are threaded onto the outer wall of the mounting plate.

[0013] By adopting the above technical solution, the device is fixed to the wall surface using an mounting plate and anchor bolts.

[0014] In a preferred embodiment, a level is fixedly mounted on the outer wall of the fixed base.

[0015] By adopting the above technical solution, the level can be used to observe whether the fixed base is in a horizontal state.

[0016] In a preferred embodiment, the outer wall of the thickness control plate is provided with a scale.

[0017] By adopting the above technical solution, thickness adjustment can be quickly achieved by referring to a scale.

[0018] In a preferred embodiment, both the electric slider and the outer wall of the thickness control plate are fixedly mounted with magnets, and the magnetic poles of the two magnets are opposite.

[0019] By adopting the above technical solution, the thickness control plate is rotated and then fixed in position by a magnet.

[0020] In a preferred embodiment, the outer wall of the slider is threaded with a locking bolt.

[0021] By adopting the above technical solution, after the slider position is adjusted, its position is locked by locking bolts.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0023] 1. In this utility model, a fixing plate is fixedly installed on the bottom of the I-beam of the cantilever floor slab using a column. During installation, it is necessary to ensure that the fixing plate is horizontal and that the measuring rod of the flatness measuring instrument is in contact with the lower wall of the I-beam. After installation, the flatness measuring instrument is moved along the fixed base by an electric slider. During this process, the measuring rod of the flatness measuring instrument measures the flatness of the I-beam. If the cantilever floor slab is not horizontal, the angle can be changed by the adjustment rod driven by the cylinder. Since the fixing plate is fixedly installed on the bottom of the I-beam, the I-beam moves along its trajectory when the adjustment rod moves, thereby adjusting the flatness of the cantilever floor slab.

[0024] 2. In this utility model, when it is necessary to control the thickness of the floor slab, the thickness control plate can be rotated, and then the slider can be pulled to move the limiting plate on its outer wall to a specified height, thereby controlling the thickness of the floor slab through the limiting plate. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0026] Figure 2 This is a schematic diagram of the fixing plate and its upper part in this utility model;

[0027] Figure 3 This utility model Figure 2 A magnified view of A in the middle.

[0028] Markings in the diagram: 1-Fixed base; 2-Adjusting rod; 3-Connecting sleeve; 4-Cylinder; 5-Fixing plate; 6-Column; 7-Slide groove; 8-Electric slider; 9-Flatness measuring instrument; 10-Locking handle; 11-Friction block; 12-Thickness control plate; 13-Slider; 14-Limit plate; 15-Locking bolt; 16-Mounting plate; 17-Anchor bolt; 18-Level.

[0029] It should be noted that the flatness measuring instrument 10 in this utility model is model MAK-380 flatness measuring instrument, which is existing technology and its working principle has been disclosed, so it is not described in detail in the specification. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] Example:

[0032] Reference Figure 1-3 An instrument for controlling the thickness and flatness of cantilevered floor slabs includes a fixed base 1. An adjusting rod 2 and a cylinder 4 are respectively hinged to both sides of the upper surface of the fixed base 1. A connecting sleeve 3 is fixedly installed on the outer wall of the upper end of the adjusting rod 2. The output shaft end of the cylinder 4 is hinged to the outer wall of the connecting sleeve 3. A fixed plate 5 is hinged to the top of the adjusting rod 2. Multiple columns 6 are fixedly installed on both sides of the upper surface of the fixed plate 5. A locking handle 10 is threadedly connected to the outer wall of the column 6. A friction block 11 is fixedly installed on one side of the locking handle 10. By rotating the locking handle 10, the friction block 11 moves inward, thereby fixing the fixed plate 5 to the lower end of the I-beam. An installation plate 16 is fixedly installed on one side of the fixed base 1. An anchor bolt 17 is threadedly connected to the outer wall of the installation plate 16. The installation plate 16 is fixedly installed on the wall through the installation plate 16 and the anchor bolt 17. A level 18 is fixedly installed on the outer wall of the fixed base 1. The level 18 is used to observe whether the fixed base 1 is in a horizontal state.

[0033] The fixed plate 5 has grooves 7 on both sides, and an electric slider 8 is slidably connected to the outer wall of the groove 7. A flatness measuring instrument 9 is fixedly installed on the top of the electric slider 8. The fixed plate 5 is fixedly installed on the bottom of the I-beam of the cantilever floor slab through the column 6. During installation, it is necessary to ensure that the fixed plate 5 is in a horizontal state and that the measuring rod of the flatness measuring instrument 9 is in contact with the lower wall of the I-beam. After installation, the flatness measuring instrument 9 is moved along the fixed base 1 by the electric slider 8. During this process, the measuring rod of the flatness measuring instrument 9 measures the flatness of the I-beam. If the cantilever floor slab is not in a horizontal state, the cylinder 4 can be used to drive the adjusting rod 2 to change the angle. Since the fixed plate 5 is fixedly installed on the bottom of the I-beam, when the adjusting rod 2 moves, it drives the I-beam to move along its movement trajectory, thereby adjusting the flatness of the cantilever floor slab.

[0034] A thickness control plate 12 is hinged to one side of the electric slider 8. Magnets are fixedly installed on the outer walls of both the electric slider 8 and the thickness control plate 12, with opposite magnetic poles. After the thickness control plate 12 rotates, its position is fixed by the magnets. A scale is provided on the outer wall of the thickness control plate 12, allowing for quick thickness adjustment by referring to the scale. A slider 13 is slidably connected to the outer wall of the thickness control plate 12, and a locking bolt 15 is threaded onto the outer wall of the slider 13. After the position of the slider 13 is adjusted, its position is locked by the locking bolt 15. A limit plate 14 is fixedly installed on one side of the slider 13. When it is necessary to control the thickness of the floor slab, the thickness control plate 12 can be rotated 180 degrees, and then the slider 13 can be pulled to move the limit plate 14 on its outer wall to the specified height, thereby controlling the thickness of the floor slab through the limit plate 14.

[0035] The implementation principle of this utility model of an instrument for controlling the thickness and flatness of cantilevered floor slabs is as follows: A fixed plate 5 is fixedly installed at the bottom of the I-beam of the cantilevered floor slab via a column 6. During installation, it is necessary to ensure that the fixed plate 5 is horizontal and that the measuring rod of the flatness measuring instrument 9 is in contact with the lower wall of the I-beam. After installation, the flatness measuring instrument 9 is moved along the fixed base 1 by an electric slider 8. During this process, the measuring rod of the flatness measuring instrument 9 measures the flatness of the I-beam. If the cantilevered floor slab is not horizontal, the cylinder 4 can be used to drive the adjusting rod 2 to change the angle. Since the fixed plate 5 is fixedly installed at the bottom of the I-beam, when the adjusting rod 2 moves, it drives the I-beam to move along its trajectory, thereby adjusting the flatness of the cantilevered floor slab. When it is necessary to control the thickness of the floor slab, the thickness control plate 12 can be rotated 180 degrees, and then the slider 13 can be pulled to move the limiting plate 14 on its outer wall to the specified height. The thickness of the floor slab is controlled by the limiting plate 14.

[0036] 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 the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An instrument for controlling the thickness and flatness of cantilevered floor slabs, comprising a fixed base (1), characterized in that: The upper surface of the fixed base (1) is hinged to an adjusting rod (2) and a cylinder (4) respectively. A connecting sleeve (3) is fixedly installed on the outer wall of the upper end of the adjusting rod (2). The output shaft end of the cylinder (4) is hinged to the outer wall of the connecting sleeve (3). A fixed plate (5) is hinged to the top of the adjusting rod (2). Slide grooves (7) are provided on both sides of the fixed plate (5). An electric slider (8) is slidably connected to the outer wall of the slide groove (7). A flatness measuring instrument (9) is fixedly installed on the top of the electric slider (8). Multiple columns (6) are fixedly installed on both sides of the upper surface of the fixed plate (5).

2. The instrument for controlling the thickness and flatness of cantilevered floor slabs as described in claim 1, characterized in that: A thickness control plate (12) is hinged to one side of the electric slider (8), and a slider (13) is slidably connected to the outer wall of the thickness control plate (12). A limit plate (14) is fixedly installed on one side of the slider (13).

3. The instrument for controlling the thickness and flatness of cantilevered floor slabs as described in claim 1, characterized in that: The column (6) is threadedly connected to a locking handle (10), and a friction block (11) is fixedly installed on one side of the locking handle (10).

4. The instrument for controlling the thickness and flatness of cantilevered floor slabs as described in claim 1, characterized in that: An installation plate (16) is fixedly installed on one side of the fixed base (1), and an anchor bolt (17) is threadedly connected to the outer wall of the installation plate (16).

5. The instrument for controlling the thickness and flatness of cantilevered floor slabs as described in claim 1, characterized in that: A level (18) is fixedly installed on the outer wall of the fixed base (1).

6. The instrument for controlling the thickness and flatness of cantilevered floor slabs as described in claim 2, characterized in that: The thickness control plate (12) has a scale on its outer wall.

7. The instrument for controlling the thickness and flatness of cantilevered floor slabs as described in claim 1, characterized in that: The outer walls of the electric slider (8) and the thickness control plate (12) are both fixedly installed with magnets, and the magnetic poles of the two magnets are opposite.

8. The instrument for controlling the thickness and flatness of cantilevered floor slabs as described in claim 1, characterized in that: The outer wall of the slider (13) is threaded with a locking bolt (15).

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