A formwork support device for post-cast concrete strips in buildings

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By introducing an automatic lifting and fixing mechanism into the formwork support device for concrete pouring in post-construction strips, the problem of inconvenient height adjustment of existing devices has been solved, achieving automated adjustment and improved stability, reducing labor intensity and extending motor life.

CN224579062UActive Publication Date: 2026-07-31GUIZHOU CONSTRAL ENG GROUP

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: GUIZHOU CONSTRAL ENG GROUP
Filing Date: 2025-09-01
Publication Date: 2026-07-31

AI Technical Summary

Technical Problem

Existing formwork support devices for post-cast concrete strips in buildings cannot automatically adjust their height, and the adjustment process is complex.

Method used

A formwork support device for post-concrete pouring strips in construction is adopted, which includes a support column, a first connector, a fixing mechanism and a lifting mechanism. The device achieves automatic lifting through a threaded rod driven by a first motor and is fixed by a fixing rod driven by a second motor. Combined with a protective shell and a protective shell made of plastic material, the device can protect the motor and the threaded rod, thereby improving its stability and convenience.

Benefits of technology

The automatic height adjustment of the support device has been achieved, which has improved work efficiency, reduced the labor intensity of workers, extended the service life of the motor and threaded rod, and reduced the weight of the device, making it easier to handle and install.

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Abstract

This utility model discloses a support device for concrete pouring formwork in post-cast strips of buildings, relating to the field of building pouring formwork technology. It includes a support column and two first connecting members, and further includes a fixing mechanism disposed on the support column; a lifting mechanism disposed on the first connecting member, the lifting mechanism comprising: a protective shell disposed on the first connecting member; a first motor disposed within the protective shell; a first threaded rod disposed at the output end of the first motor; a lifting plate disposed on the first threaded rod; and multiple lifting columns disposed on the lifting plate. This device, by incorporating the fixing mechanism, can secure the support column and lifting columns, increasing the stability of the device, and can also protect the first threaded rod, thereby ensuring the stability and safety of the entire device during use.

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Description

Technical Field

[0001] This utility model relates to the field of building pouring formwork technology, and in particular to a formwork support device for pouring concrete in post-pouring strips of buildings. Background Technology

[0002] Post-cast strips are temporary, strip-shaped gaps (typically 700-1000 mm wide) left in foundation slabs, walls, and floors during building construction to address cracking caused by temperature changes, concrete shrinkage, and uneven settlement. After the main structure is completed and the ambient temperature or settlement has stabilized, these strips are filled with high-strength, micro-expansion concrete, creating a unified structure. Post-cast strips effectively release early stress, ensuring the integrity and safety of the building structure, and are widely used in large-scale buildings and ultra-long structures. However, the concrete formwork for post-cast strips requires support during construction. Current support devices lack automatic height adjustment and are complex to adjust, thus requiring improvement. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a support device for concrete pouring formwork in post-pouring strips of buildings, which aims to solve the technical problem that the above-mentioned support devices cannot be automatically adjusted when the height is adjusted.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a formwork support device for post-cast concrete strips in buildings, comprising a support column and a first connector, wherein the first connector has two components, and further comprising:

[0005] A fixing mechanism is provided on the support column for fixing the component;

[0006] A lifting mechanism, disposed on the first connecting member, is used for automatic lifting. The lifting mechanism includes:

[0007] A protective shell is disposed on the first connector and is fixedly connected to the first connector;

[0008] A protective shell is disposed on the first connector and is fixedly connected to the first connector;

[0009] The first motor is disposed inside the protective housing and is fixedly connected to the protective housing;

[0010] A first threaded rod is disposed at the output end of the first motor and is fixedly connected to the output end of the first motor.

[0011] A lifting plate is mounted on the first threaded rod and is threadedly connected to the first threaded rod.

[0012] The lifting column is multiple in number, and the multiple lifting columns are disposed on the lifting plate and fixedly connected to the lifting plate.

[0013] Preferably, the lifting mechanism further includes:

[0014] A lifting groove is provided on the support column for moving the lifting plate;

[0015] The second connector is disposed on the lifting column and is used to fix the lifting column;

[0016] The support plate is multiple, and the multiple support plates are disposed on the second connector for supporting the operation.

[0017] Preferably, the fixing mechanism includes:

[0018] An installation section is provided on the lifting plate for component installation;

[0019] A drive unit, disposed on the mounting unit, is used to provide power;

[0020] A fixing part is provided on the mounting part for fixing the support column and the lifting column.

[0021] Preferably, the mounting part includes:

[0022] An installation plate is disposed on the lifting plate and is fixedly connected to the lifting plate;

[0023] The mounting slot is provided within the mounting plate for component mounting.

[0024] Preferably, the driving unit includes:

[0025] The second motor is disposed in the mounting slot and is fixedly connected to the mounting slot;

[0026] The second threaded rod is located at the output end of the second motor and is fixedly connected to the output end of the second motor.

[0027] Preferably, the fixing part includes:

[0028] A fixing rod is provided on the second threaded rod and is threadedly connected to the second threaded rod.

[0029] The support column has multiple fixing holes for component insertion.

[0030] A connection hole is provided on the lifting column for inserting components.

[0031] Preferably, both the protective shell and the protective shell material are plastic.

[0032] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0033] 1. This device, by setting a fixing mechanism, can fix the support column and the lifting column, which increases the stability of the device and can protect the first threaded rod, thereby ensuring the stability and safety of the entire device during use.

[0034] 2. By setting up a lifting mechanism, this device can realize the function of automatic lifting, thereby improving work efficiency and reducing the labor intensity of workers. At the same time, the protective shell and protective cover not only protect the first motor and the first threaded rod from the corrosion of the external environment and extend their service life, but also reduce the overall weight of the device by using plastic material, making it easy to handle and install. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A three-dimensional structural schematic diagram of a formwork support device for post-cast concrete strips in buildings is shown.

[0037] Figure 2 A partial sectional view of a formwork support device for pouring concrete in a post-construction strip is shown.

[0038] Figure 3 An exploded view of some components of the lifting mechanism is shown.

[0039] Figure 4 A three-dimensional view of the lifting mechanism is shown.

[0040] Figure 5 An exploded view of the fixed mechanism is shown.

[0041] Legend:

[0042] 1. Support column; 2. First connecting piece; 3. Protective shell; 4. Protective shell; 5. First motor; 6. First threaded rod; 7. Lifting plate; 8. Lifting column; 9. Lifting groove; 10. Second connecting piece; 11. Support piece; 12. Mounting plate; 13. Mounting groove; 14. Second motor; 15. Second threaded rod; 16. Fixing rod; 17. Fixing hole; 18. Connecting hole. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0044] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] Reference Figures 1 to 5 The present invention provides a further description of an embodiment of a formwork support device for post-cast concrete strips in buildings.

[0048] A formwork support device for pouring concrete in post-construction strips includes a support column 1 and two first connectors 2. The device also includes a fixing mechanism mounted on the support column 1 for component fixation; and a lifting mechanism mounted on the first connectors 2 for automatic lifting. The lifting mechanism includes: a protective shell 3 mounted on and fixedly connected to the first connectors 2; a protective shell 4 mounted on and fixedly connected to the first connectors 2; a first motor 5 mounted inside and fixedly connected to the protective shell 3; a first threaded rod 6 mounted on and fixedly connected to the output end of the first motor 5; a lifting plate 7 mounted on and threadedly connected to the first threaded rod 6; and multiple lifting columns 8 mounted on and fixedly connected to the lifting plate 7.

[0049] In this configuration, by activating the first motor 5, the output of the first motor 5 drives the first threaded rod 6 to rotate. Since the lifting plate 7 is threadedly connected to the first threaded rod 6, the lifting plate 7 rises and falls under the rotation of the first threaded rod 6, thereby driving the lifting column 8 and the support plate to rise and fall, realizing the function of automatic lifting. At the same time, the lifting height of this device is fixed, and the fixing hole 17 and the connecting hole 18 need to be kept connected. When the device cannot provide support after lifting, an external pad can be connected through the connecting hole 18 on the support plate to provide support. Moreover, the protective shell 3 and the protective shell 4 are both made of plastic, which can protect the first motor 5 and the first threaded rod 6, and the lightweight design reduces the weight of this device.

[0050] refer to Figure 2 and Figure 3 In a preferred embodiment, the lifting mechanism further includes: a lifting groove 9, disposed on the support column 1, for moving the lifting plate 7; a second connecting member 10, disposed on the lifting column 8, for fixing the lifting column 8; and multiple support plates, with the multiple support plates disposed on the second connecting member 10, for supporting the operation.

[0051] refer to Figure 1 and Figure 3 In a preferred embodiment, the fixing mechanism includes: a mounting part disposed on the lifting plate 7 for mounting components; a driving part disposed on the mounting part for providing power; and a fixing part disposed on the mounting part for fixing the support column 1 and the lifting column 8.

[0052] refer to Figure 4 and Figure 5 In a preferred embodiment, the mounting part includes: a mounting plate 12, which is disposed on the lifting plate 7 and fixedly connected to the lifting plate 7; and a mounting groove 13, which is disposed in the mounting plate 12 for component mounting.

[0053] refer to Figure 5 In a preferred embodiment, the drive unit includes: a second motor 14, which is disposed in the mounting groove 13 and fixedly connected to the mounting groove 13; and a second threaded rod 15, which is disposed at the output end of the second motor 14 and fixedly connected to the output end of the second motor 14.

[0054] refer to Figure 3 and Figure 5 In a preferred embodiment, the fixing part includes: a fixing rod 16, which is disposed on the second threaded rod 15 and is threadedly connected to the second threaded rod 15; a plurality of fixing holes 17, which are disposed on the support column 1 for inserting components; and a connecting hole 18, which is disposed on the lifting column 8 for inserting components.

[0055] With this setup, during operation, starting the second motor 14 causes the output end of the second motor 14 to rotate the second threaded rod 15. Since the fixed rod 16 is threadedly connected to the second threaded rod 15, the fixed rod 16 moves under the rotation of the second threaded rod 15. The fixed rod 16 is then inserted into the fixed hole 17 on the support column 1 and the connecting hole 18 on the lifting column 8, thus fixing the support column 1 and the lifting column 8.

[0056] This device, through its fixing mechanism, can secure the support column 1 and the lifting column 8, increasing the device's stability and protecting the first threaded rod 6, thus ensuring the stability and safety of the entire device during use. The lifting mechanism enables automatic lifting, improving work efficiency and reducing worker fatigue. Furthermore, the protective shells 3 and 4 not only protect the first motor 5 and the first threaded rod 6 from environmental corrosion, extending their service life, but also, by using plastic materials, reduce the overall weight of the device, facilitating handling and installation.

[0057] Working Principle: When this device is used for support work, it is moved to the required position and fixed. Then, the first motor 5 is started, and the output end of the first motor 5 drives the first threaded rod 6 to rotate. Since the lifting plate 7 is threadedly connected to the first threaded rod 6, the lifting plate 7 rises and falls under the rotation of the first threaded rod 6, thereby driving the lifting column 8 and the support plate to rise and fall, realizing the automatic lifting function and improving the practicality of the device. Furthermore, when adjusting the height, the device maintains the alignment of the connecting hole 18 and the fixing hole 17. After the height adjustment is completed, the second motor 14 is started. The output end of 4 drives the second threaded rod 15 to rotate. Since the fixed rod 16 is threadedly connected to the second threaded rod 15, the fixed rod 16 moves under the rotation of the second threaded rod 15. The fixed rod 16 is inserted into the fixed hole 17 on the support column 1 and the connecting hole 18 on the lifting column 8 to fix the support column 1 and the lifting column 8, which further improves the stability of the device. In addition, the protective shell 3 and the protective shell 4 play a good protective role for the first motor 5 and the first threaded rod 6, and extend the service life of the first motor 5 and the first threaded rod 6. After all the adjustments are completed, the template can be fixed on the support plate.

[0058] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A formwork support device for post-cast concrete strips in buildings, comprising a support column (1) and a first connector (2), wherein the first connector (2) has two components, characterized in that, Also includes: A fixing mechanism is provided on the support column (1) for fixing the component; A lifting mechanism, disposed on the first connecting member (2), is used for automatic lifting function. The lifting mechanism includes: A protective shell (3) is disposed on the first connector (2) and is fixedly connected to the first connector (2); A protective shell (4) is disposed on the first connector (2) and is fixedly connected to the first connector (2); The first motor (5) is disposed inside the protective shell (3) and is fixedly connected to the protective shell (3); The first threaded rod (6) is disposed at the output end of the first motor (5) and is fixedly connected to the output end of the first motor (5); The lifting plate (7) is disposed on the first threaded rod (6) and is threadedly connected to the first threaded rod (6); There are multiple lifting columns (8), and the multiple lifting columns (8) are arranged on the lifting plate (7) and fixedly connected to the lifting plate (7).

2. The post-cast strip concrete pouring formwork support device according to claim 1, characterized in that, The lifting mechanism also includes: A lifting groove (9) is provided on the support column (1) for moving the lifting plate (7); The second connector (10) is disposed on the lifting column (8) and is used to fix the lifting column (8); The support plate has multiple supports, and the multiple support plates are disposed on the second connector (10) for supporting the work.

3. The formwork support device for post-cast concrete strips in buildings according to claim 2, characterized in that, The fixing mechanism includes: The mounting section is provided on the lifting plate (7) and is used for component installation; A drive unit, disposed on the mounting unit, is used to provide power; A fixing part is provided on the mounting part for fixing the support column (1) and the lifting column (8).

4. The post-cast strip concrete pouring formwork support device according to claim 3, characterized in that, The mounting part includes: Mounting plate (12) is mounted on the lifting plate (7) and fixedly connected to the lifting plate (7); The mounting slot (13) is provided in the mounting plate (12) for component installation.

5. The post-cast strip concrete pouring formwork support device according to claim 4, characterized in that, The drive unit includes: The second motor (14) is disposed in the mounting slot (13) and is fixedly connected to the mounting slot (13); The second threaded rod (15) is located at the output end of the second motor (14) and is fixedly connected to the output end of the second motor (14).

6. A formwork support device for post-cast concrete strips in buildings according to claim 5, characterized in that, The fixing part includes: A fixed rod (16) is disposed on the second threaded rod (15) and is threadedly connected to the second threaded rod (15); The fixing holes (17) are multiple, and the multiple fixing holes (17) are provided on the support column (1) for component insertion; A connecting hole (18) is provided on the lifting column (8) for component insertion.

7. The post-cast strip concrete pouring formwork support device according to claim 6, characterized in that, Both the protective shell (3) and the protective shell (4) are made of plastic.