Tool-type building plate-lowering device and construction method thereof

By using steel formwork and support components, the problem of poor stability in traditional wooden formwork hoisting construction has been solved, enabling the repeated use of steel formwork and improving project quality.

CN119041683BActive Publication Date: 2025-12-19ZHEJIANG SECOND CONSTR GRP CO LTD
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Patent Information

Application Number
CN202411298996.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-18
Publication Date
2025-12-19
Estimated Expiration
2044-09-18

AI Technical Summary

Technical Problem

Traditional wooden formwork hoisting construction suffers from poor stability, low project quality and efficiency, especially since wooden formwork is prone to damage and deformation after repeated use.

Method used

Steel formwork is used and equipped with support components, including support columns, support rods and abutment plates. A micro motor is used to drive the support rods to extend, retract and adjust the angle, ensuring the stability of the steel formwork and its repeated use.

Benefits of technology

It improved the stability of the suspended formwork, reduced the risk of water absorption and displacement of the formwork, improved the quality and efficiency of the project, and reduced the labor intensity of the workers.

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Abstract

The application discloses a tool type building plate lowering device and a construction method thereof, and belongs to the field of building templates and supports. The tool type building plate lowering device comprises a steel template, the steel template is located at a plate lowering side position, a bottom plate is arranged at the bottom of a reinforcing bar layer, and a supporting assembly for supporting the steel template is arranged on the bottom plate. The application has the effects of prolonging the service life of the template and improving the quality and efficiency of engineering.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building templates and supporting technology, in particular to a tool type building drop plate device and a construction method thereof. BACKGROUND

[0002] The building drop plate refers to lowering the structural elevation of a floor or a roof plate (plate surface) to adapt to the height difference requirements of ground decoration materials in different rooms or areas, especially balcony, kitchen, bathroom and other parts in a residential building.

[0003] The traditional construction method of the drop plate often uses wooden templates for hoisting and molding, and then pours concrete, and removes the template after the concrete solidifies. Due to the water absorption of the wooden structure, the bending strength and stiffness of the wooden square are low, and the wooden square itself is also prone to damage after multiple hoisting and removing of the template, which makes the stability of the hoisting template poor, and the pouring structure has poor appearance and quality, thereby affecting the engineering quality, delaying the engineering progress and reducing the engineering efficiency. SUMMARY

[0004] In order to improve the quality and efficiency of the project, the application provides a tool type building drop plate device and a construction method thereof.

[0005] The tool type building drop plate device and the construction method thereof provided by the application adopt the following technical scheme:

[0006] The tool type building drop plate device and the construction method thereof comprise a steel template, the steel template is located at a drop plate position, and a support assembly for supporting the steel template is arranged in a reinforcing layer.

[0007] By adopting the above technical scheme, the use of the steel template can effectively avoid the water absorption of the template, and the steel template is solid in material and good in structural rigidity, and is convenient for repeated use. The steel template is kept stable under the action of the support assembly, thereby improving the stability of the hoisting template, and further improving the engineering quality and efficiency.

[0008] Preferably, a bottom plate is arranged at the drop plate position, the bottom plate abuts against the reinforcing layer, and the steel template abuts against the bottom plate.

[0009] By adopting the above technical scheme, before hoisting the template, a layer of bottom plate is placed on the reinforcing layer, which facilitates the workers to move on the bottom plate to perform the hoisting work, reduces the possibility of the workers stepping on the reinforcing layer and causing the reinforcing bar to bend and affect the displacement of the template during hoisting, and reduces the possibility of the workers stepping on the reinforcing layer.

[0010] Preferably, the support assembly comprises a support column, a support rod and an abutting plate, the support column is connected to the bottom plate, the support rod is rotationally connected to the support column, the abutting plate is hingedly connected to one end of the support rod away from the support column, and the abutting plate abuts against the steel template.

[0011] By adopting the technical scheme, after the staff places the base plate and the steel formwork, the supporting column is installed on the base plate, then the staff rotates the supporting rod to adjust the position of the supporting rod abutting against the steel formwork to find a suitable position, and the abutting plate abuts against the side wall of the steel formwork, the abutting plate can increase the contact area between the supporting rod and the steel formwork, and avoid that the local force is too large to cause the surface of the steel formwork to be concave.

[0012] Preferably, the supporting rod has telescopic property, the supporting rod comprises a main rod and an auxiliary rod, a telescopic slot is formed in the main rod, one end of the auxiliary rod is inserted into the telescopic slot and is threadedly connected with the main rod, and a rotating assembly for driving the main rod to rotate is arranged on the main rod; the abutting plate is hingedly connected to the end of the auxiliary rod away from the main rod, a connecting ball is rotationally connected to the end of the main rod away from the auxiliary rod, and a rotating groove for the connecting ball to rotate is formed in the side wall of the supporting column.

[0013] By adopting the technical scheme, the telescopic property of the supporting rod is helpful for the staff to adjust the supporting work of the steel formwork, under the control of the staff, the main rod is rotated by the driving assembly, the auxiliary rod is driven to move linearly, the supporting rod is extended, and the abutting plate is tightly abutted against the steel formwork, in addition, the staff can adjust the length of the supporting rod according to the width of the base plate, so that the device is suitable for base plates of various sizes.

[0014] Preferably, the rotating assembly comprises a micro motor, a worm and a turbine, the turbine is fixedly sleeved on the main rod, the micro motor is fixedly installed on the connecting ball, the worm is fixedly connected to the rotating shaft of the micro motor, and the worm is engaged with the turbine.

[0015] By adopting the technical scheme, the staff can remotely control the rotation of the micro motor, so as to control the movement of the auxiliary rod in the telescopic slot, and the labor intensity of the staff is reduced.

[0016] Preferably, a pushing groove is formed in the steel formwork, a pushing block is slidably arranged in the pushing groove, the pushing block abuts against the steel bar layer, a spring is arranged in the pushing groove, and the two ends of the spring are fixedly connected to the pushing block and the inner wall of the pushing groove, respectively.

[0017] By adopting the technical scheme, when the abutting plate is tightly abutted against the steel formwork, the pushing block abuts against the steel bar layer and compresses the spring in the pushing groove, when the staff moves the abutting plate away from the steel formwork in the process of removing the formwork, the steel formwork has a tendency to move away from the concrete under the reverse pushing of the pushing plate and the spring, so as to reduce the difficulty of the staff in removing the formwork, and the staff is helped to remove the formwork.

[0018] Preferably, a rotating rod is fixedly connected to the connecting ball, both ends of the rotating rod are rotatably arranged in the inner wall of the rotating groove, a first gear is fixedly sleeved on the rotating rod, a first rack is slidably arranged in the support column, the first rack is engaged with the first gear, and a driving assembly for driving the first rack to move is arranged on the support column.

[0019] By adopting the above technical scheme, when the staff needs to adjust the inclination angle of the support rod, the staff drives the first rack to move through the driving assembly, the first rack drives the first gear to rotate through movement, and the first gear drives the connecting ball to rotate through rotation, so that the angle of the support rod is adjusted.

[0020] Preferably, the driving assembly comprises a second gear, a second rack and a rotating handle, the second gear is fixedly sleeved on the rotating handle, the rotating handle penetrates through the side wall of the support column, the second gear is rotatably arranged in the support column, the second rack is fixedly connected to the side wall of the first rack, the second gear is engaged with the second rack, and a fixing assembly for fixing the rotating handle is arranged on the support column.

[0021] By adopting the above technical scheme, the staff rotates the rotating handle, the rotating handle drives the second gear to rotate through rotation, the second gear drives the second rack to move through rotation, and the second rack drives the first rack to move through movement, so that the possibility of rotation of the support rod in the supporting process is reduced when the support rod is rotated to the appropriate position.

[0022] Preferably, the fixing assembly comprises a fixing block and a plug rod, the fixing block is fixedly sleeved on the rotating handle, a fixing hole is formed in the fixing block, the plug rod is screwedly connected to the inner wall of the fixing hole, and the plug rod abuts against the side wall of the support column.

[0023] By adopting the above technical scheme, when the staff adjusts the position of the support rod through the rotating handle, the staff twists the plug rod to make the plug rod abut against the side wall of the support column, so that the rotation of the rotating handle is limited.

[0024] Preferably, the construction method of the tool type building lowering plate device is as follows:

[0025] S1, placing and installing a bottom plate;

[0026] S2, installing the support column on the bottom plate;

[0027] S3, placing the steel formwork at an appropriate position;

[0028] S4, adjusting the rotation direction and the angle of the connecting ball through the driving assembly, so as to adjust the angle of the support rod, and driving the support rod to be telescopic through the micro motor until the abutting plate abuts against the side wall of the steel formwork;

[0029] S5, pouring concrete;

[0030] S6, removing the formwork, the staff first removes the support rod, support column, etc., and then removes the concrete from the mold to take down the steel formwork;

[0031] S7, taking out the bottom plate.

[0032] By adopting the above technical scheme, the staff first places the bottom plate, which facilitates the staff to walk on it to install the support assembly. Then, the staff installs the support assembly on the bottom plate and supports and fixes the steel formwork. Then, the staff pours concrete, and after the concrete hardens, the staff removes the support structure and the steel formwork in sequence.

[0033] To sum up, the present application includes at least one of the following beneficial technical effects:

[0034] 1. The use of steel formwork can effectively avoid the situation of formwork water absorption, and the steel formwork is solid in material and good in structural rigidity, which is convenient for repeated use. The steel formwork remains stable under the action of the support assembly, thereby improving the stability of the formwork, and further improving the engineering quality and efficiency;

[0035] 2. Before the formwork is hung, a layer of bottom plate is placed on the reinforcement layer, which facilitates the staff to walk on the bottom plate to perform the formwork hanging work, reduces the possibility of stepping on the reinforcement layer, and reduces the possibility of the staff stepping on the reinforcement layer, causing the reinforcement to bend and affecting the formwork to deviate;

[0036] 3. The telescopic property of the support rod helps the staff to adjust the support work of the steel formwork. Under the control of the staff, the main rod is rotated by the driving assembly, the auxiliary rod is linearly moved, the support rod is extended, and the abutting plate is tightly abutted to the steel formwork. In addition, the staff can adjust the length of the support rod according to the width of the lowered plate, so that the device is suitable for lowered plates of various sizes. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is the overall structure schematic diagram of the tool type building lowered plate device.

[0038] Figure 2 is the cross-sectional structure schematic diagram of the tool type building lowered plate device in the embodiment of the present application.

[0039] Figure 3 is the top view cross-sectional view of the support column in the embodiment of the present application.

[0040] Figure 4 is Figure 3 is the enlarged view of A in

[0041] BRIEF DESCRIPTION OF DRAWINGS:

[0042] 1 steel formwork; 2 support assembly; 3 bottom plate; 4 support column; 5 support rod; 6 abutment plate; 7 limiting plate; 8 base; 9 main rod; 10 auxiliary rod; 11 rotating assembly; 12 turbine; 13 worm; 14 micro motor; 16 rotating groove; 17 pushing groove; 18 push block; 19 spring; 20 first gear; 21 first rack; 22 second gear; 23 second rack; 24 handle; 25 fixing assembly; 26 fixing block; 27 insertion rod; 28 placing groove; 29 reinforcement layer; 30 through groove; 31 connecting ball; 32 rotating rod; 33 driving assembly. DETAILED DESCRIPTION

[0043] The application will be further described in detail below with reference to the accompanying drawings. Figures 1-4 The application will be further described in detail below with reference to the accompanying drawings.

[0044] As shown in Figure 1 and Figure 2 The tool type building formwork lowering device disclosed by the embodiments of the application comprises a steel formwork 1, the steel formwork 1 abuts against a reinforcement layer 29 on the side of the lowered formwork, and a support assembly 2 is arranged at the lowered formwork to support the steel formwork 1 on both sides of the lowered formwork. The steel formwork 1 can effectively avoid the situation of water absorption of the formwork, and the steel formwork 1 is made of solid material and has good structural rigidity, so that the steel formwork 1 can be repeatedly used for many times. The steel formwork 1 is kept stable under the action of the support assembly 2, so that the stability of the hoisted formwork is improved, and the engineering quality and efficiency are improved. A bottom plate 3 is arranged at the bottom of the lowered formwork, the bottom plate 3 is in the shape of a cuboid, and the bottom plate 3 is arranged at the reinforcement layer 29 at the bottom end of the lowered formwork. The lower end surface of the bottom plate 3 abuts against the reinforcement layer 29, and the lower end surface of the steel formwork 1 abuts against the upper end surface of the bottom plate 3. The bottom plate 3 is provided with a through groove 30, so that a worker can insert a vibrating rod into the through groove 30 to treat the poured concrete. Before hoisting the formwork, a layer of bottom plate 3 is arranged on the reinforcement layer 29, so that the worker can walk on the bottom plate 3 to perform the hoisting work, which reduces the possibility of the worker stepping on the reinforcement layer 29 and causing the reinforcement to be bent and the formwork to be deviated when the formwork is hoisted.

[0045] As shown in Figure 2 and Figure 3As shown, the bottom plate 3 is provided with two sets of limiting plates 7 on the upper side by bolt fixing, the limiting plates 7 are inverted "L" type, and the limiting plates 7 and the upper end surface of the bottom plate 3 form a plug-in slot. The support assembly 2 includes a support column 4, a plurality of support rods 5 and a plurality of abutting plates 6, the lower end surface of the support column 4 is fixedly welded with a base 8, the base 8 is in the shape of a cuboid, the base 8 is plugged into the plug-in slot, thereby fixing the position of the support column 4. At the same time, the staff can adjust the position of the limiting plate 7 according to the most suitable support position of the steel formwork 1, and then the position of the support column 4 can be adjusted. The number of support rods 5 and abutting plates 6 in the application is four, the four support rods 5 are divided into two groups, respectively arranged symmetrically along the symmetry axis of the support column 4, and the two support rods 5 on one side of the support column 4 are arranged on the same line upward and downward, supporting different positions of the same steel formwork 1. The abutting plate 6 is hinged to one end of the support rod 5 away from the support column 4, and the abutting plate 6 abuts on the steel formwork 1, supporting relative to a single support rod 5, and two supports can reduce the occurrence of steel formwork 1 deviation or inclination.

[0046] As Figure 2 shown, the support rod 5 has telescopic property, the support rod 5 includes a main rod 9 and an auxiliary rod 10, the main rod 9 and the auxiliary rod 10 are both in the shape of a cylinder, the main rod 9 is provided with a telescopic slot along the central axis direction, one end of the auxiliary rod 10 is deeply inserted into the telescopic slot and is threadedly connected with the main rod 9. The abutting plate 6 is hinged to one end of the auxiliary rod 10 away from the main rod 9, and one end of the main rod 9 away from the auxiliary rod 10 is rotationally connected with a connecting ball 31, and the side wall of the support column 4 is provided with a rotating slot 16 for rotation of the connecting ball 31.

[0047] As Figure 3 and Figure 4 shown, the main rod 9 is provided with a rotating assembly 11 for driving the main rod 9 to rotate; the rotating assembly 11 includes a micro motor 14, a worm 13 and a turbine 12, the turbine 12 is fixedly sleeved on the main rod 9, the connecting ball 31 is fixedly welded with a fixed frame on the surface, the micro motor 14 is fixedly installed on the fixed frame, the worm 13 is fixedly welded on the rotating shaft of the micro motor 14, and the worm 13 and the turbine 12 are engaged. The telescopic property of the support rod 5 is helpful for the staff to adjust the support work of the steel formwork 1, in the case that the staff does not rotate the auxiliary rod 10 downward, the micro motor 14 is remotely started, the micro motor 14 rotates to drive the worm 13 to rotate, the worm 13 rotates to drive the turbine 12 to rotate, the turbine 12 rotates to drive the main rod 9 to rotate, thereby driving the auxiliary rod 10 to move linearly, extending the support rod 5 and making the abutting plate 6 abut against the steel formwork 1, the abutting plate 6 can increase the contact area between the support rod 5 and the steel formwork 1, avoiding that the local force is too large to cause the surface of the steel formwork 1 to be concave. In addition, the staff can adjust the length of the support rod 5 according to the width of the lowering plate, so that the device is suitable for lowering plates of various sizes, and the length of the support rod 5 is adjusted by the motor, reducing the working strength of the staff.

[0048] AsFigure 3 and Figure 4 As shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 4, the connecting ball 31 is provided with a rotating rod 32 welded thereon, the two ends of the rotating rod 32 are respectively rotated in the inner wall of the rotating groove 16, the support column 4 is provided with a placing groove 28, one end of the rotating rod 32 is rotated in the placing groove 28, and the rotating rod 32 is fixedly sleeved with a first gear 20, the first rack 21 is slidably arranged in the placing groove 28 along the vertical direction, and the first gear 20 is engaged with the first rack 21. The placing groove 28 of the support column 4 is provided with two, corresponding to the support rods 5 of different heights, and the two placing grooves 28 are arranged in the upper and lower of the support column 4, the internal structures of the two placing grooves 28 are consistent, and the two ends of the placing groove 28 correspond to the connecting ball 31 respectively, and the example of the embodiment is the placing groove 28 located above the support column 4. The placing groove 28 is provided with a driving assembly 33 for driving the first rack 21 to move. The two support rods 5 of the same height are a group, and the same height of the two connecting balls 31 is simultaneously driven to rotate by the driving assembly 33. The driving assembly 33 comprises a second gear 22, a handle 24 and two second racks 23, the handle 24 is horizontally arranged through the side wall of the support column 4 and rotated in the placing groove 28, the second gear 22 is fixedly sleeved on the handle 24 and rotated in the placing groove 28, the two second racks 23 are respectively fixedly welded on the opposite side walls of the two first racks 21, the two second racks 23 are engaged with the second gear 22, and the support column 4 is provided with two groups of fixing assemblies 25 for fixing the two handles 24 respectively. The fixing assembly 25 comprises a fixed block 26 and a plug rod 27, the fixed block 26 is in the shape of a cuboid, the handle 24 is arranged through the axis of the fixed block 26, the end face of the fixed block 26 is provided with a fixing hole along the horizontal direction, and the plug rod 27 is threadedly connected to the inner wall of the fixing hole and abuts against the side wall of the support column 4.

[0049] As Figure 3 and Figure 4 shown, when the staff needs to adjust the inclination angle of the support rod 5, first, the staff twists the plug rod 27 to make the plug rod 27 away from the side wall of the support column 4, and the handle 24 is released, then the staff rotates the handle 24, the handle 24 drives the second gear 22 to rotate, the second gear 22 drives the second rack 23 on the two sides to move, the second rack 23 drives the first rack 21 to move, the first rack 21 drives the first gear 20 to rotate, and the first gear 20 drives the connecting ball 31 to rotate, so as to adjust the angle of the support rod 5; when the support rod 5 is rotated to the appropriate position, the staff twists the plug rod 27 to make the plug rod 27 abut against the side wall of the support column 4, so as to reduce the possibility of the handle 24 rotating, thereby reducing the possibility of the support rod 5 rotating in the supporting process. After the staff adjusts the positions of the support rods 5 on the two sides of the upper part of the support column 4, the same steps are used to adjust the support rods 5 on the two sides of the lower part of the support column 4, so that the steel formwork 1 has two abutting supports, and the stability of the support is increased.

[0050] AsFigure 2 As shown, the steel formwork 1 is provided with a push groove 17 on one side close to the reinforcement layer 29, a push block 18 is slidably arranged in the push groove 17, the push block 18 is cuboid, the push block 18 abuts against the reinforcement layer 29, a plurality of springs 19 are arranged in the push groove 17, the springs 19 are horizontally arranged, and the two ends of the spring 19 are respectively welded to the push block 18 and the inner wall of the push groove 17. When the abutting plate 6 abuts against the steel formwork 1, the push block 18 abuts against the reinforcement layer 29 and compresses the spring 19 in the push groove 17. When the worker moves the abutting plate 6 away from the steel formwork during the form removal process, the steel formwork 1 has a tendency to move away from the concrete under the reverse pushing of the push plate and the spring 19, so that the steel formwork 1 is more easily demoulded, and the difficulty of the worker in form removal is reduced.

[0051] As shown in Figure 2 and Figure 4 shown, the construction method of the tool type building form lowering device in the application is as follows:

[0052] S1, place and install the base plate 3;

[0053] S2, install the support column 4 on the base plate 3;

[0054] S3, place the steel formwork 1 at a proper position;

[0055] S4, adjust the angle of the support rod 5 through the driving assembly 33, and drive the support rod 5 to extend or retract through the micro motor 14 until the abutting plate 6 abuts against the side wall of the steel formwork 1;

[0056] S5, pour the concrete;

[0057] S6, remove the form, the worker first removes the support rod 5, the support column 4 and the like, and then demoulds the concrete and takes down the steel formwork 1.

[0058] S7, take out the base plate 3.

[0059] The implementation principle of the embodiment of the application is: including the steel formwork 1 and the support assembly 2 supporting the steel formwork 1, the steel formwork 1 abuts against the form lowering side reinforcement layer 29, and the bottom reinforcement layer 29 is provided with the base plate 3, which is convenient for the worker to move and arrange work. The support assembly 2 includes the support column 4, the support rod 5 and the plurality of abutting plates 6, the abutting plate 6 abuts against the steel formwork 1, the support column 4 is installed on the base plate 3, the plurality of support rods 5 are movably connected to the side wall of the support column 4, the support rod 5 is symmetrical up and down and left and right, can support and fix different positions of the steel formwork 1 on one side, the steel formwork 1 can effectively avoid the water absorption of the formwork, and the steel formwork 1 is solid in material and good in structural rigidity, is convenient for repeated use, the steel formwork 1 is kept stable under the action of the support assembly 2, thereby improving the stability of the formwork, and further improving the engineering quality and efficiency.

[0060] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A tool-type building slab lowering device, characterized in that: Includes a steel formwork (1), which is located at the drop plate position, and a support assembly (2) for supporting the steel formwork (1) is provided in the steel reinforcement layer (29); The steel template (1) has a push groove (17) inside, and a push block (18) slides inside the push groove (17). The push block (18) abuts against the steel reinforcement layer (29). A spring (19) is installed inside the push groove (17). The two ends of the spring (19) are fixedly connected to the push block (18) and the inner wall of the push groove (17), respectively. A base plate (3) is placed at the lowering plate position, the base plate (3) abuts against the reinforcing steel layer (29), and the steel formwork (1) abuts against the base plate (3); The support assembly (2) includes a support column (4), a support rod (5), and an abutment plate (6). The support column (4) is connected to the base plate (3), the support rod (5) is rotatably connected to the support column (4), and the abutment plate (6) is hinged to the end of the support rod (5) away from the support column (4). The abutment plate (6) abuts against the steel template (1).

2. The tool-type building slab lowering device according to claim 1, characterized in that: The support rod (5) is telescopic. The support rod (5) includes a main rod (9) and an auxiliary rod (10). The main rod (9) has a telescopic groove. One end of the auxiliary rod (10) is inserted into the telescopic groove and is threadedly connected to the main rod (9). The main rod (9) is provided with a rotating assembly (11) for driving the main rod (9) to rotate. The abutment plate (6) is hinged to the end of the auxiliary rod (10) away from the main rod (9). The end of the main rod (9) away from the auxiliary rod (10) is rotatably connected to a connecting ball (31). The side wall of the support column (4) has a rotating groove (16) for the connecting ball (31) to rotate.

3. The tool-type building slab lowering device according to claim 2, characterized in that: The rotating assembly (11) includes a micro motor (14), a worm (13) and a turbine (12). The turbine (12) is fixedly sleeved on the main rod (9). The micro motor (14) is fixedly installed on the connecting ball (31). The worm (13) is fixedly connected to the rotating shaft of the micro motor (14). The worm (13) meshes with the turbine (12).

4. The tool-type building slab lowering device according to claim 3, characterized in that: A rotating rod (32) is fixedly connected to the connecting ball (31). The two ends of the rotating rod (32) rotate on the inner wall of the rotating groove (16). A first gear (20) is fixedly sleeved on the rotating rod (32). A first rack (21) slides inside the support column (4). The first rack (21) and the first gear (20) mesh with each other. A driving assembly (33) for driving the first rack (21) to move is provided on the support column (4).

5. The tool-type building slab lowering device according to claim 4, characterized in that: The drive assembly (33) includes a second gear (22), a second rack (23), and a rotating handle (24). The second gear (22) is fixedly sleeved on the rotating handle (24), and the rotating handle (24) passes through the side wall of the support column (4). The second gear (22) rotates inside the support column (4). The second rack (23) is fixedly connected to the side wall of the first rack (21). The second gear (22) meshes with the second rack (23). A fixing assembly (25) for fixing the rotating handle (24) is provided on the support column (4).

6. The tool-type building slab lowering device according to claim 5, characterized in that: The fixing component (25) includes a fixing block (26) and a plug rod (27). The fixing block (26) is fixedly sleeved on the rotating handle (24). The fixing block (26) has a fixing hole. The plug rod (27) is threaded to the inner wall of the fixing hole and abuts against the side wall of the support column (4).

7. The construction method of the tool-type building slab lowering device according to any one of claims 4-6, characterized in that: S1. Place the mounting base plate (3); S2. Install the support column (4) on the base plate (3); S3. Place the steel formwork (1) in the appropriate position; S4. Adjust the angle of the support rod (5) by the drive assembly (33), and drive the support rod (5) to extend and retract until the abutment plate (6) abuts against the steel template (1) by the micro motor (14); S5. Pour concrete; S6. Demolding: Workers first remove the support rods, support columns, etc., then demold the concrete and remove the steel formwork. S7. Remove the base plate (3).

Citation Information

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