Rebar positioning frame for construction of building floors

Abstract

The utility model relates to engineering construction device technical field discloses a steel bar positioning frame for building floor construction, including support steel bar, first positioning recess part is arranged in the middle position of support steel bar, and the fixed connection of support steel bar is close to first positioning recess part position fixed limit steel bar, and the support steel bar of first positioning recess part lower position is still provided with first support part, and the second positioning recess part is arranged in the first support part of support steel bar, the support steel bar of '' several '' character shape, cooperation first positioning recess part and second positioning recess part, can realize perpendicular interval positioning to longitude and latitude direction steel bar, avoid the deviation when steel bar paving, and the limiting portion of limit steel bar one end is located in the oblique upper side of first positioning recess part, can firmly fix the steel bar in recess part, prevent its slippage, simultaneously, the adjusting block of height adjuster is connected first support part through the clamping groove, and the convex edge and friction groove cooperation promote connection stability, and the increase and decrease adjusting block can be adjusted support height flexibly.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction devices, in particular to a steel bar positioning frame for building floor slab construction. Background Art

[0002] The pouring construction of building floor slab is to pour pre-mixed concrete material into the installed floor slab formwork and steel bar framework through the steps of transportation, placing, vibration, curing and other steps, and finally form a reinforced concrete floor slab with bearing capacity; Before construction, formwork erection, steel bar binding and acceptance shall be completed to ensure that the formwork support is stable, and the steel bar spacing and protective layer thickness meet the design requirements. Therefore, before steel bar binding, devices such as steel bar horses need to be used to position the paved steel bars. The steel bar horses are processed on site from steel bars, and their common shapes are "Ω"-shaped or "I"-shaped. When used in the construction of reinforced concrete structures, they support the upper stressed steel bars to ensure that the spacing between the upper steel bars and the lower steel bars meets the design requirements. However, after the existing steel bar horses are arranged, there will be deviation between the model selection and the actual working conditions, the structural dimensions of some steel bar horses during height processing do not meet the requirements of steel bar spacing, resulting in insufficient bearing capacity, which easily leads to the sinking of upper steel bars, changes the thickness of the steel bar protective layer and the stress position, and affects the structural bearing capacity. Summary of Utility Model

[0003] The purpose of the utility model is to provide a steel bar positioning frame for building floor slab construction, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is as follows: A steel bar positioning frame for building floor slab construction comprises a supporting steel bar, a first positioning concave portion is arranged at the middle position of the supporting steel bar, a middle limiting steel bar is fixedly connected to the position of the supporting steel bar close to the first positioning concave portion, a first supporting portion is further arranged on the supporting steel bar at a position below the first positioning concave portion, a second positioning concave portion is arranged at the position of the supporting steel bar close to the first supporting portion, a second supporting portion is arranged at the position of the supporting steel bar close to the second positioning concave portion, a height adjuster is arranged outside the first supporting portion, the height adjuster comprises a plurality of adjusting blocks, a clamping groove is formed in each adjusting block, each adjusting block is clamped on the first supporting portion through the corresponding clamping groove, and a connecting rod is fixedly connected between every two adjacent adjusting blocks.

[0005] As a further optimization scheme of the utility model, the supporting steel bar is "Ω"-shaped, which is used for cooperating with the first positioning concave portion and the second positioning concave portion to realize vertical interval positioning of warp and weft steel bars.

[0006] As a further optimization solution of the present utility model, the longitudinal section of the first support part is U-shaped, the bottom of the first support part and the bottom of the second support part are on the same horizontal plane, and the first support part and the second support part provide a plurality of grounding fulcrums for the entire supporting steel bar, so that the entire bent supporting steel bar can be stably placed on the formwork. Meanwhile, the bent part of the first support part is semicircular, which provides conditions for the installation of the adjustment block and guiding adjustment.

[0007] As a further optimization solution of the present utility model, a plurality of convex ribs are fixedly connected to the outer side of the first support part.

[0008] As a further optimization solution of the present utility model, a plurality of friction grooves are provided on the inner side of the clamping groove. After the adjusting block is clamped onto the corresponding first support part through the clamping groove, the cooperation between the friction grooves and the convex ribs can increase the friction between the inner wall of the clamping groove and the first support part, and improve the adjustment stability of the adjusting block, so that the adjusting block can be inserted between the formwork and the first support part through the slope surface on the side opposite to the clamping groove, thereby adjusting the supporting height of the supporting steel bar.

[0009] As a further optimization solution of the present utility model, a limiting part is fixedly connected to one end of the limiting steel bar, and the limiting part is located at a position obliquely above the first positioning recess, which is used to limit the steel bar placed on the first positioning recess.

[0010] Compared with the prior art, the present utility model has the following beneficial effects: In the present utility model, the -shaped supporting steel bar, in cooperation with the first positioning recess and the second positioning recess, can realize vertical spacing positioning for warp and weft steel bars, and avoid offset during steel bar laying. The limiting part at one end of the limiting steel bar is located obliquely above the first positioning recess, which can firmly fix the steel bar placed in the recess and prevent it from slipping off. Meanwhile, the adjusting block of the height adjuster is clamped to the first support part through the clamping groove, the cooperation between the convex ribs and the friction grooves improves the connection stability, and the supporting height can be flexibly adjusted by adding or reducing adjusting blocks, so as to compensate the processing deviation of the supporting steel bar and the installation point deviation at the construction site. Description of Drawings

[0011] Figure 1 is an operation schematic diagram of the main structure of the present utility model; Figure 2 is a schematic diagram of the main structure of the present utility model; Figure 3 is a structural schematic diagram of the height adjuster of the present utility model.

[0012] In the figure: 1. Supporting rebar; 2. First positioning recess; 3. Limiting rebar; 4. First supporting part; 5. Second positioning recess; 6. Second supporting part; 7. Height adjuster; 8. Adjusting block; 9. Clamping groove; 10. Connecting rod; 11. Limiting part; 12. Convex rib; 13. Friction groove. DETAILED DESCRIPTION OF EMBODIMENTS

[0013] In order to make the technical means, creative features, objectives and effects achieved by the present utility model easy to understand, the present utility model is further described below in conjunction with specific embodiments.

[0014] As Figures 1-3 shown in the figure, a rebar positioning frame for construction floor slab construction provided by the present utility model comprises a supporting rebar 1, a first positioning recess 2 is provided at a middle position of the supporting rebar 1, a middle limiting rebar 3 is fixedly connected to the supporting rebar 1 at a position close to the first positioning recess 2, a first supporting part 4 is further provided on the supporting rebar 1 at a position below the first positioning recess 2, a second positioning recess 5 is provided on the supporting rebar 1 at a position close to the first supporting part 4, a second supporting part 6 is provided on the supporting rebar 1 at a position close to the second positioning recess 5, a height adjuster 7 is provided outside the first supporting part 4, the height adjuster 7 comprises a plurality of adjusting blocks 8, a clamping groove 9 is opened in the adjusting block 8, the adjusting block 8 is clamped on the first supporting part 4 through the clamping groove 9, and a connecting rod 10 is fixedly connected between two adjacent adjusting blocks 8.

[0015] As Figure 2 shown in the figure, the supporting rebar 1 is in an "Ω" shape, which is used for cooperating with the first positioning recess 2 and the second positioning recess 5 to realize vertical spacing positioning of warp and weft rebars. The longitudinal cross-section of the first supporting part 4 is "U"-shaped, and the bottom of the first supporting part 4 and the bottom of the second supporting part 6 are at the same horizontal plane. The first supporting part 4 and the second supporting part 6 provide a plurality of ground-contacting fulcrums for the entire supporting rebar 1, so that the entire bent supporting rebar 1 can be stably placed on a formwork. Meanwhile, the bent part of the first supporting part 4 is semicircular, which provides conditions for installation of the adjusting blocks 8 and guiding adjustment.

[0016] As Figures 2-3 shown in the figure, a plurality of convex ribs 12 are fixedly connected outside the first supporting part 4, a plurality of friction grooves 13 are opened on the inner side of the clamping groove 9. After the adjusting block 8 is clamped on the corresponding first supporting part 4 through the clamping groove 9, the cooperation between the friction grooves 13 and the convex ribs 12 can increase the friction between the inner wall of the clamping groove 9 and the first supporting part 4, and improve the adjustment stability of the adjusting block 8, so that the adjusting block 8 can be inserted between the formwork and the first supporting part 4 by using the slope surface on the side away from the clamping groove 9, thereby adjusting the supporting height of the supporting rebar 1. One end of the limiting rebar 3 is fixedly connected with a limiting part 11, and the limiting part 11 is located obliquely above the first positioning recess 2, which is used for limiting the rebar placed on the first positioning recess 2.

[0017] It should be noted that this utility model is a rebar positioning frame for building floor slab construction. During construction, the supporting rebar 1 is first placed on the erected floor slab formwork. At this time, the first support part 4 and the second support part 6 at the bottom of the supporting rebar 1 can provide multiple evenly distributed ground support points for the supporting rebar 1, ensuring that the supporting rebar 1 stands stably on the formwork and avoiding subsequent positioning deviations due to unstable placement. Then, the rebar is laid and positioned. The warp and weft rebars are placed in the first positioning recess 2 and the second positioning recess 5 of the supporting rebar 1, respectively, so that the warp and weft rebars can form vertical interval limit, preventing the rebars from shifting laterally or longitudinally during the laying process. At the same time, the rebars placed in the first positioning recess 2 need to be placed from the side of the supporting rebar 1 closest to the first positioning recess 2 and pushed into the first positioning recess 2, so that the limiting rebar 3 fixed on the supporting rebar 1 has a limiting part 11 at one end, which can block the rebar from above, preventing the rebars from slipping out of the first positioning recess 2 due to external force or vibration during subsequent construction, further enhancing the positioning effect. If it is necessary to adjust the support height to accommodate different rebar spacings or to compensate for processing and installation deviations of the support rebar 1, firstly, the adjusting block 8 is engaged with the outside of the first support part 4 through the internal slot 9. The protruding ridge 12 on the outside of the first support part 4 will engage with the friction groove 13 on the inside of the slot 9, increasing the friction between the adjusting block 8 and the first support part 4 and preventing the adjusting block 8 from sliding during the support process. Then, the adjusting block 8 can be pushed to move on the first support part 4 supporting the rebar 1, and the adjusting block 8 is inserted between the first support part 4 and the template using a slope structure with gradually increasing thickness from bottom to top on one side. The slope will gradually fill the gap between the first support part 4 and the template, thereby gradually raising the overall height of the support rebar 1 until the design required support height is reached.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rebar positioning frame for building floor slab construction, characterized in that: Comprising a support steel bar (1), a first positioning recess (2) is provided at a middle position of the support steel bar (1), a middle limiting steel bar (3) is fixedly connected to the support steel bar (1) at a position close to the first positioning recess (2), the support steel bar (1) located below the first positioning recess (2) is further provided with a first support portion (4), a second positioning recess (5) is provided on the support steel bar (1) at a position close to the first support portion (4), a second support portion (6) is provided on the support steel bar (1) at a position close to the second positioning recess (5), a height adjuster (7) is provided outside the first support portion (4), the height adjuster (7) comprises a plurality of adjusting blocks (8), a clamping groove (9) is formed in the adjusting block (8), the adjusting block (8) is clamped on the first support portion (4) through the clamping groove (9), and a connecting rod (10) is fixedly connected between two adjacent adjusting blocks (8).

2. The rebar positioning frame for building floor slab construction according to claim 1, characterized in that: The support steel bar (1) is in a shape of a Chinese character "ji".

3. The rebar positioning frame for building floor slab construction according to claim 1, characterized in that: A longitudinal section of the first support portion (4) is U-shaped, and a bottom of the first support portion (4) and a bottom of the second support portion (6) are on the same horizontal plane.

4. A rebar positioning frame for building floor slab construction according to claim 3, characterized in that: A plurality of convex ridges (12) are fixedly connected to an outer side of the first support portion (4).

5. A rebar positioning frame for building floor slab construction according to claim 4, characterized in that: A plurality of friction grooves (13) are formed on an inner side of the clamping groove (9).

6. A rebar positioning frame for building floor slab construction according to claim 1, characterized in that: A limiting portion (11) is fixedly connected to one end of the limiting steel bar (3), and the limiting portion (11) is located at a position obliquely above the first positioning recess (2).

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