A formwork support device for post-cast strips in floor slabs

Abstract

This utility model discloses a formwork support device for post-cast strips in floor slabs, including a threaded support top rod. A telescopic tube is sleeved on the upper outer surface of the threaded support top rod, and the inner surface of the telescopic tube is sleeved on the outer surface of the threaded support top rod. A first nut is threadedly connected to the outer surface of the threaded support top rod. A top plate is fixedly connected to the upper surface of the telescopic tube. A positioning tie rod is slidably inserted into the inner surface of the top plate. A positioning clamping seat is fixedly connected to one end face of the positioning tie rod, and a second nut is threadedly connected to the other outer surface of the positioning tie rod. By adopting a threaded support top rod structure, two sets of left-right telescopic positioning tie rods are provided at the upper top plate. The spacing of the positioning tie rods can be adjusted, allowing them to be clamped on the side of the formwork for fixed upward compression. When supporting the formwork from the bottom, it will not cause the bottom formwork to sway left and right, ensuring stable formwork support and flexible and convenient use.

Description

Technical Field

[0001] This utility model relates to the field of formwork support device for post-pouring strips in floor slabs, and more specifically, to a formwork support device for post-pouring strips in floor slabs. Background Technology

[0002] Post-cast strips are technical measures taken in building construction to prevent harmful cracks from forming in cast-in-place reinforced concrete structures due to uneven shrinkage or settlement. They are pre-reserved areas in foundation slabs, walls, and beams for later construction. They are widely used in the construction of large-span, ultra-high concrete slab structures in industrial plants, especially where non-metallic wear-resistant floor slabs and post-cast strip concrete require seamless joints and consistent flatness. In building construction, the construction of post-cast strips generally requires the use of appropriate support devices to ensure their stability and prevent them from falling. A search revealed that Chinese patent CN218779942U discloses a movable post-cast strip formwork support device, including a movable support trolley. The lower end of the trolley moves back and forth along the concrete floor front via casters. The upper end of the trolley is equipped with a telescopic mechanism, and the upper end of the telescopic mechanism is equipped with a support mechanism, formwork panel, and grout-stopping plate. This improves the installation efficiency of the post-cast strip formwork and accelerates the construction progress.

[0003] Furthermore, according to existing technology, such as the authorization announcement number CN221941917U, this utility model discloses a recyclable and adjustable standardized post-cast strip support device, which relates to the field of building engineering technology. It solves the problems of existing devices relying on casters for support during use, which are easily damaged by the casters, and cannot be adjusted according to different lengths of post-cast strips, thus reducing practicality. It also cannot be stored and occupies a lot of space. The solution includes two bottom support bases, and a first square tube and a second square tube are respectively fixedly installed on the upper surface of the two bottom support bases. The first square tube and the second square tube are both equipped with lifting support mechanisms. A post-cast strip support plate is inserted between the movable ends of the two lifting support mechanisms. Through the set lifting and moving mechanism, the casters can be stored during support. Support by the bottom support base avoids damaging the casters. Through the set adjustable connecting mechanism, the distance between the two U-shaped groove plates can be adjusted, and it can also be folded for storage.

[0004] In its existing technology, according to the aforementioned patent, it uses a square tube structure for support and lifts, and sets up a lifting support mechanism to support the post-pouring strip. When it is in use, the bottom template is prone to shifting left and right. When it is squeezed, it can only be squeezed from the bottom up. When the template sways left and right, it cannot be positioned. Its formwork is unstable and inflexible in use. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a formwork support device for post-pouring strips in floor slabs. By adopting a threaded support top rod structure, two sets of positioning tie rods that can extend and retract left and right are set at the top plate of the upper end. The spacing of the positioning tie rods can be adjusted, and they can be clamped on the side of the formwork for fixed upward compression. When supporting the formwork from the bottom, it will not cause the bottom formwork to sway left and right, ensuring stable formwork support and flexible and convenient use.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A formwork support device for post-cast strips in floor slabs includes a threaded support rod. A telescopic sleeve is fitted onto the outer surface of the upper end of the threaded support rod. The inner surface of the telescopic sleeve is fitted onto the outer surface of the threaded support rod. A first nut is threadedly connected to the outer surface of the threaded support rod. A top plate is fixedly connected to the upper surface of the telescopic sleeve. A positioning tie rod is slidably inserted into the inner surface of the top plate. A positioning clamp is fixedly connected to one end face of the positioning tie rod. A second nut is threadedly connected to the other outer surface of the positioning tie rod. By adopting a threaded support rod structure, two sets of left-right telescopic positioning tie rods are provided at the upper top plate. The spacing of the positioning tie rods can be adjusted, allowing them to be clamped onto the side of the formwork for fixed upward compression. When supporting the formwork from the bottom, it does not cause the bottom formwork to sway left and right, ensuring stable formwork support and flexible and convenient use.

[0008] Furthermore, the lower outer surface of the threaded support rod is threadedly connected to the inner surface of the bottom support base, and a support foot block is fixed to the outer surface of the bottom support base.

[0009] Furthermore, the support feet are distributed and fixed on the outer surface of the bottom support base at three points on the outer end.

[0010] Furthermore, the bottom support base adopts a circular base structure with a threaded groove on its surface, and the lower outer surface of the threaded support rod is threadedly connected to the inner surface of the threaded groove of the bottom support base.

[0011] Furthermore, a hexagonal boss is provided on the lower outer surface of the threaded support rod, and the lower surface of the hexagonal boss presses against the upper surface of the bottom support seat.

[0012] Furthermore, a handle is fixedly connected to the outer surface of the first nut.

[0013] Furthermore, the outer end of the handle is provided with a ball head protrusion, and the handle is distributed on the left and right outer surfaces of the first nut.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) By adopting a threaded support top rod structure, two sets of positioning tie rods that can extend and retract left and right are set at the top plate of the upper end. The spacing of the positioning tie rods can be adjusted, and they can be clamped on the side of the template for fixed upward compression. When the template is supported from the bottom, the bottom template will not sway left and right, the template is stable, and it is flexible and convenient to use. Attached Figure Description

[0016] Figure 1 This is a first schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a second schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a third schematic diagram of the overall structure of this utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the overall structure of this utility model;

[0020] Figure 5 This is a schematic diagram showing the distribution relationship between the bottom support base and the support foot blocks of this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1. Threaded support top rod, 2. Telescopic sleeve, 3. First nut, 4. Handle, 5. Top plate, 6. Positioning tie rod, 7. Positioning clamp seat, 8. Second nut, 9. Bottom support seat, 10. Support foot block, 11. Hexagonal boss. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0024] Please see Figure 1-5A formwork support device for post-cast strips in floor slabs includes a threaded support rod 1. A telescopic sleeve 2 is sleeved on the outer surface of the upper end of the threaded support rod 1. The inner surface of the telescopic sleeve 2 is sleeved on the outer surface of the threaded support rod 1. A first nut 3 is threadedly connected to the outer surface of the threaded support rod 1. A top plate 5 is fixedly connected to the upper surface of the telescopic sleeve 2. A positioning tie rod 6 is slidably inserted into the inner surface of the top plate 5. A positioning clamping seat 7 is fixedly connected to one end face of the positioning tie rod 6. A second nut 8 is threadedly connected to the other outer surface of the positioning tie rod 6. By adopting a threaded support rod structure, two sets of positioning tie rods that can extend and retract left and right are set at the upper top plate. The spacing of the positioning tie rods can be adjusted. They can be clamped on the side of the formwork for fixed upward compression. When supporting the formwork from the bottom, it will not cause the bottom formwork to sway left and right, ensuring stable formwork support and flexible and convenient use.

[0025] The lower outer surface of the threaded support rod 1 is threadedly connected to the inner surface of the bottom support base 9. The outer surface of the bottom support base 9 is fixed with support feet 10, which facilitates support on the ground and improves stability. The support feet 10 are distributed and fixed at three points on the outer surface of the bottom support base 9. The support feet 10 are distributed at three points, which can stably support the ground and form a triangular support structure with stable bottom support.

[0026] The bottom support base 9 adopts a circular base structure with threaded grooves on its surface. The lower outer surface of the threaded support rod 1 is threadedly connected to the inner surface of the threaded groove of the bottom support base 9. The threaded support rod 1 and the bottom support base 9 are easy to install.

[0027] The lower end of the threaded support rod 1 is provided with a hexagonal boss 11. The lower surface of the hexagonal boss 11 presses against the upper surface of the bottom support seat 9. During installation, the threaded support rod 1 can be twisted by using a wrench to engage the hexagonal boss 11, which facilitates installation with the bottom support seat 9, making it secure and easy to operate.

[0028] A handle 4 is fixedly connected to the outer surface of the first nut 3; the handle 4 structure is provided so that when in use, the handle 4 can be twisted to rotate, which can drive the first nut 3 to rotate, can push the first nut 3 upward, can drive the telescopic sleeve 2 to rise, can adjust the first nut 3 downward, and can drive the telescopic sleeve 2 to slide downward, which can be telescopically adjusted.

[0029] The outer end of the handle 4 is provided with a ball head protrusion, and the handle 4 is distributed on the left and right outer surfaces of the first nut 3; making it convenient to grip the handle 4 for rotation operation;

[0030] In use, a telescopic sleeve 2 is fitted onto the outer surface of the upper end of the threaded support rod 1. The inner surface of the telescopic sleeve 2 is fitted onto the outer surface of the threaded support rod 1. A first nut 3 is threadedly connected to the outer surface of the threaded support rod 1. A top plate 5 is fixedly connected to the upper surface of the telescopic sleeve 2. A positioning tie rod 6 is slidably inserted into the inner surface of the top plate 5. A positioning clamping seat 7 is fixedly connected to one end face of the positioning tie rod 6. A second nut 8 is threadedly connected to the other outer surface of the positioning tie rod 6. In use, the second nut 8 can be adjusted according to the width of the template, which can pull and adjust the positioning tie rod 6. The positioning clamping seat 7 at the outer end of the positioning tie rod 6 can be pressed against both sides of the template for clamping and fixing. When it is lifted and pressed, it is not easy for the template to shake, and the lifting support is more stable.

[0031] In use, the lower outer surface of the threaded support rod 1 is threadedly connected to the inner surface of the bottom support base 9, and the outer surface of the bottom support base 9 is fixed with support feet 10; this facilitates support on the ground and improves stability; the support feet 10 are distributed and fixed at three points on the outer surface of the bottom support base 9; the support feet 10 are distributed at three points, and the support feet 10 can stably support the ground, forming a triangular support structure, and the bottom support is stable; the outer surface of the first nut 3 is fixedly connected with a handle 4; the handle 4 structure is provided, and in use, the handle 4 can be twisted to rotate, which can drive the first nut 3 to rotate, can push the first nut 3 upward, can drive the telescopic sleeve 2 to rise, can adjust the first nut 3 downward, can drive the telescopic sleeve 2 to slide downward, and can be telescopically adjusted; it can drive the telescopic sleeve 2 to rise and push, and can drive the top plate 5 to press and fix at the lower end of the template, which is firmly fixed.

[0032] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A floor post-cast strip formwork device, comprising a threaded support top rod (1), characterized in that: The upper outer surface of the threaded support rod (1) is fitted with a telescopic sleeve (2), the inner surface of the telescopic sleeve (2) is fitted onto the outer surface of the threaded support rod (1), the outer surface of the threaded support rod (1) is connected to a first nut (3) by a thread, the upper surface of the telescopic sleeve (2) is fixedly connected to a top plate (5), the inner surface of the top plate (5) is slidably inserted with a positioning pull rod (6), one end face of the positioning pull rod (6) is fixedly connected to a positioning clamping seat (7), and the other outer surface of the positioning pull rod (6) is connected to a second nut (8) by a thread.

2. The post-cast strip formwork support device according to claim 1, wherein: The lower outer surface of the threaded support rod (1) is threadedly connected to the inner surface of the bottom support base (9), and the outer surface of the bottom support base (9) is fixed with a support foot block (10).

3. The post-cast strip formwork support device according to claim 2, characterized in that: The support feet (10) are distributed and fixed on the outer surface of the bottom support base (9) at three points on the outer end.

4. The post-cast strip formwork support device according to claim 2, characterized in that: The bottom support (9) adopts a circular seat structure with a threaded groove on its surface. The lower outer surface of the threaded support rod (1) is connected to the inner surface of the threaded groove of the bottom support (9) by a thread.

5. The post-cast strip formwork support device according to claim 1, wherein: The lower end of the threaded support rod (1) is provided with a hexagonal boss (11), and the lower surface of the hexagonal boss (11) is pressed against the upper surface of the bottom support seat (9).

6. The formwork support device for post-cast strips in floor slabs according to claim 1, characterized in that: A handle (4) is fixedly connected to the outer surface of the first nut (3).

7. A formwork support device for post-cast strips in floor slabs according to claim 6, characterized in that: The outer end of the handle (4) is provided with a ball head protrusion, and the handle (4) is distributed on the left and right outer surfaces of the first nut (3).

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