Floor steel bar fixing device

Abstract

The utility model relates to a floor reinforcing steel bar fixing device, including support seat and connecting portion, support seat sets up in the both sides of connecting portion, connecting portion is spaced and is provided with a plurality of clamping slots along its length direction, and the clamping slot is used for limiting the transverse displacement of the plate surface reinforcing steel bar, and the support seat is placed on the plate surface, and the reinforcing steel bar displacement is limited through the clamping slot, ensures the reinforcing steel bar positioning accuracy, simplifies the construction procedure simultaneously, improves construction efficiency, has the advantages of improving reinforcing steel bar positioning accuracy, simplifying construction procedure, improving construction efficiency, reducing cost, adapting to different floor thickness and reinforcing method, being convenient for quality traceability and management.

Description

Technical Field

[0001] This utility model relates to the technical field of building construction, and in particular to a floor slab reinforcement fixing device. Background Technology

[0002] In the construction of cast-in-place concrete slabs, the positioning accuracy of the reinforcing steel bars directly affects the structural load-bearing capacity. Traditionally, the position of the reinforcing steel bars is marked using a chalk line method: construction workers first mark lines on the formwork surface, and then manually tie the reinforcing steel bars according to these lines. However, this technique has the following significant drawbacks:

[0003] Low construction efficiency and insufficient accuracy: The process of marking lines relies on manual experience, especially in complex slab types or large span areas, where the lines are prone to deviation or breakage, resulting in excessive errors in the spacing of the reinforcing bars (usually exceeding ±20mm).

[0004] Deterioration of formwork after repeated use exacerbates positioning deviations: After repeated use, the surface of the formwork is prone to edge wear or local deformation, which reduces the clarity and continuity of the ink lines. Construction workers are forced to estimate the position of the reinforcing bars based on experience, which further increases the randomness of the arrangement.

[0005] Quality traceability is difficult: manual marking and manual binding lack digital control nodes, making it difficult to reverse the construction process defects through acceptance data, which can easily lead to structural safety hazards.

[0006] It is particularly noteworthy that when the floor slab thickness is less than 150mm or double-layer bidirectional reinforcement is used, the aforementioned cumulative error effect will cause the effective height (h0) loss rate of the reinforcement to exceed 10%, severely weakening the structural bending resistance. Although existing technologies attempt to improve this by increasing the frequency of formwork replacement or strengthening manual supervision, this will simultaneously lead to increased construction costs and project delays.

[0007] Therefore, there is an urgent need for a floor slab reinforcement fixing device to simplify the reinforcement arrangement method and make the reinforcement arrangement on the slab surface fast, convenient and of better quality. Utility Model Content

[0008] In view of this, the present invention provides a floor slab reinforcement fixing device, which simplifies the reinforcement arrangement method and makes the reinforcement arrangement on the slab surface faster, more convenient and with better quality.

[0009] The present invention provides a floor slab reinforcement fixing device with the following technical solution:

[0010] A floor slab reinforcement fixing device includes a support base and a connecting part. The support base is disposed on both sides of the connecting part, and the connecting part is provided with a plurality of slots at intervals along its length. The slots are used to restrict the lateral displacement of the slab reinforcement. The support base is placed on the slab surface.

[0011] Optionally, the connecting part includes a connecting plate, the connecting plate having a center along the axial direction of the support base, and multiple connecting plates radially distributed around the center, each connecting plate having a slot.

[0012] Optionally, perforations are provided at the joints of the multiple connecting plates.

[0013] Optionally, the longitudinal section of the card slot is triangular.

[0014] Optionally, four connecting plates are radially distributed around the center, and the four connecting plates are distributed at 90°.

[0015] Optionally, two connecting plates are provided above the horizontal plane with the axial direction of the support base as the horizontal plane. The slots of the two connecting plates above the horizontal plane with the axial direction of the support base are used to restrict the lateral displacement of the plate reinforcement. Two connecting plates are provided below the horizontal plane with the axial direction of the support base as the horizontal plane.

[0016] Optionally, the connecting plate is a steel plate.

[0017] Optionally, the card slot is provided with an anti-slip pad layer.

[0018] Optionally, the support base is provided with a positioning hole for the laser of the laser level to pass through.

[0019] In summary, this utility model has at least one of the following beneficial technical effects: by restricting the displacement of the reinforcing bars through the slot, the positioning of the reinforcing bars is ensured to be accurate, while simplifying the construction process and improving the construction efficiency. It has the advantages of improving the positioning accuracy of reinforcing bars, simplifying the construction process, improving the construction efficiency, reducing costs, adapting to different floor slab thicknesses and reinforcement methods, and facilitating quality traceability and management. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 2 .

[0022] Explanation of reference numerals in the attached diagram: 1. Support base; 2. Connecting plate. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-2 The present invention will be described in further detail below.

[0024] This utility model discloses a floor slab reinforcement fixing device.

[0025] Reference Figure 1 and Figure 2A floor slab reinforcement fixing device includes a support base 1 and a connecting part. The support base 1 is disposed on both sides of the connecting part. The connecting part is provided with multiple slots at intervals along its length. The slots are used to restrict the lateral displacement of the reinforcement on the slab surface. The support base 1 is placed on the slab surface. By restricting the displacement of the reinforcement through the slots, the positioning of the reinforcement is ensured. At the same time, the construction process is simplified and the construction efficiency is improved. It has the advantages of improving the positioning accuracy of reinforcement, simplifying the construction process, improving the construction efficiency, reducing costs, adapting to different floor slab thicknesses and reinforcement methods, and facilitating quality traceability and management.

[0026] Support base 1 is made of steel plate, with anti-slip textured bottom to enhance friction with the template. The connection to support base 1 can be fixed by welding, bolting, or integral molding. The spacing of the slots can be adjusted according to the spacing of the reinforcing bars, for example, set to standard modules such as 100mm, 150mm, or 200mm. Anti-slip pads are provided on the slots, making the opening width slightly smaller than the diameter of the reinforcing bar, achieving secure clamping through elastic deformation.

[0027] By replacing traditional ink-line positioning with mechanical limiting, the problem of rebar spacing errors caused by manual marking is solved. The lateral restraint function of the slot ensures that the rebar does not shift during concrete pouring, guaranteeing the accuracy of the effective rebar height. The support base 1 allows the device to be stably placed on the formwork surface, avoiding positioning deviations caused by construction disturbances. Compared with traditional methods, this device features quick installation, high positioning accuracy, and reusability, making it particularly suitable for quality control in thin-slab structures or double-layer reinforced slabs.

[0028] The connecting part includes a connecting plate 2, which is centered along the axial direction of the support base 1. Multiple connecting plates 2 are radially distributed around the center, and each connecting plate 2 has a slot.

[0029] Specifically, the connecting plates 2 are radially distributed, and their number can be adjusted according to actual construction needs, such as three, four, or six. As a preferred embodiment, the connecting plates 2 are made of stamped steel plate. The connecting plates 2 and the support base 1 can be fixed by welding or bolting.

[0030] The radially distributed connecting plates 2 structure enables multi-directional rebar positioning. The connecting plates 2 are arranged radially around the axis of the support base 1, and can be engaged with the corresponding connecting plate 2 according to the required angle of the rebar on the slab, meeting the installation requirements of rebar at different angles. Compared to traditional single-directional positioning devices, this structure significantly improves the stability and accuracy of rebar positioning. The slots on each connecting plate 2 ensure effective fixing of the rebar at all radial positions, making it suitable for rebar positioning in complex slab shapes or large-span areas, and effectively preventing rebar displacement during the pouring process.

[0031] In addition, the steel wire rope used for rebar tying can be pre-fixed through the remaining slots, improving the accuracy of rebar positioning.

[0032] Perforations are provided at the joints of the multiple connecting plates 2. The perforations are circular or square holes that penetrate the joint of the connecting plates 2. In practice, the perforations can be formed by stamping or drilling. As a preferred embodiment, the perforations are symmetrically distributed radially along the connecting plates 2. Furthermore, the inner walls of the perforations can be provided with anti-slip textures or rubber bushings to enhance the frictional fixing effect of subsequently inserted components.

[0033] By incorporating perforations at the intersection of connecting plates 2, bolts or locating pins can be used for fastening during construction, ensuring the relative positional stability between multiple connecting plates 2. This structure effectively overcomes the thermal deformation problems inherent in traditional welded connections and facilitates rapid on-site assembly. When applied to double-layer, two-way reinforced slabs, the perforated structure can form a mechanical interlock with the upper support frame, preventing displacement of the reinforcing mesh during concrete pouring. Compared to the non-perforated integral connecting plate 2 structure, this solution significantly improves the adjustability and reusability of the device, making it particularly suitable for standardized construction requirements involving different specifications of reinforcing bars.

[0034] The longitudinal section of the slot is triangular. A triangular longitudinal section means that the slot has a triangular shape on its cross-section perpendicular to the length of the connecting plate 2. As a preferred embodiment, the triangle can be an equilateral triangle, an isosceles triangle, or a right triangle. The triangular cross-section of the slot structure creates a self-locking effect when the reinforcing bar undergoes lateral displacement. When the reinforcing bar is subjected to external force, the hypotenuse of the triangle decomposes the lateral force into a vertical component, causing the reinforcing bar to be pressed more tightly against the bottom of the slot. Compared to a rectangular cross-section slot, the triangular structure more effectively prevents the reinforcing bar from slipping during vibration or concrete pouring, improving the positioning accuracy of the reinforcing bar.

[0035] In this embodiment, four connecting plates are radially distributed around the center, and the four connecting plates 2 are arranged at 90°. Furthermore, two connecting plates 2 are provided above the horizontal plane with the axial direction of the support base 1 as the horizontal plane. The slots of the two connecting plates 2 above the horizontal plane with the axial direction of the support base 1 are used to restrict the lateral displacement of the slab reinforcement. Two connecting plates 2 are provided below the horizontal plane with the axial direction of the support base 1. By symmetrically arranging the connecting plates 2 above and below the horizontal plane with the axial direction of the support base 1, the position of the slab reinforcement can be more stably fixed. Depending on the installation height of the reinforcement, the slots of the two connecting plates 2 above the horizontal plane with the axial direction of the support base 1 or the slots of the connecting plates 2 below the horizontal plane with the axial direction of the support base 1 can be selected, resulting in high applicability. This effectively prevents the reinforcement from shifting during concrete pouring. Compared with the prior art, this structure simplifies the reinforcement positioning operation, reduces manual intervention, and improves the reinforcement layout accuracy. It is particularly suitable for situations with thin slabs or double-layer bidirectional reinforcement, ensuring that the effective height of the reinforcement meets design requirements.

[0036] In this embodiment, an anti-slip pad layer is provided on the slot. The anti-slip pad layer is made of rubber to further improve the stability of fixing the reinforcing bar.

[0037] The support base 1 is provided with positioning holes (not shown in the figure) for the laser beam of a laser level to pass through. The laser level is used to precisely position the installed floor slab reinforcement fixing device of this invention. When the laser beam passes through each positioning hole, it indicates that the support base 1 on that side is installed at the same level. By checking the support bases 1 on both sides, it can be ensured that the support bases 1 in the same row are on the same horizontal line, improving the accuracy of the slab reinforcement positioning. The geometric constraint relationship between the positioning holes and the laser beam reduces the level deviation of the support bases 1 in the same row.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A floor slab reinforcement fixing device, characterized in that: It includes a support base and a connecting part. The support base is disposed on both sides of the connecting part. The connecting part is provided with a plurality of slots at intervals along its length. The slots are used to restrict the lateral displacement of the reinforcing bars on the slab surface. The support base is placed on the slab surface.

2. The floor slab reinforcement fixing device according to claim 1, characterized in that: The connecting part includes a connecting plate, which is centered along the axial direction of the support base. Multiple connecting plates are radially distributed around this center, and each connecting plate has a slot.

3. The floor slab reinforcement fixing device according to claim 2, characterized in that: The connection points of the multiple connecting plates are provided with through holes.

4. The floor slab reinforcement fixing device according to claim 1, characterized in that: The longitudinal section of the slot is triangular.

5. The floor slab reinforcement fixing device according to claim 2, characterized in that: The connecting plate has four radially distributed around the center, and the four connecting plates are distributed at 90°.

6. The floor slab reinforcement fixing device according to claim 5, characterized in that: Two connecting plates are provided above the horizontal plane with the axial direction of the support base as the horizontal plane. The slots of the two connecting plates above the horizontal plane with the axial direction of the support base are used to restrict the lateral displacement of the plate surface reinforcement. Two connecting plates are provided below the horizontal plane with the axial direction of the support base as the horizontal plane.

7. The floor slab reinforcement fixing device according to claim 2, characterized in that: The connecting plate is a steel plate.

8. The floor slab reinforcement fixing device according to claim 1, characterized in that: The card slot is provided with an anti-slip pad layer.

9. The floor slab reinforcement fixing device according to claim 1, characterized in that: The support base is provided with positioning holes for the laser of the laser level to pass through.

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