Reserved hole structure for construction of reinforced concrete cover plate

Abstract

The utility model discloses a reinforced concrete cover plate construction preformed hole structure which comprises a forming groove which is in a cuboid shape and comprises two first groove walls parallel to each other and two second groove walls parallel to each other. A steel bar frame is placed in the forming groove, and hanging rings are fixed in the steel bar frame. The positioning piece comprises two first positioning rods which are arranged in parallel, and second positioning rods are vertically fixed to the two ends of each first positioning rod respectively; the first positioning rod vertically abuts against the first groove wall, and the second positioning rod abuts against the outer wall of the first groove wall. A positioning pipe is fixed between the two first positioning rods and extends into the steel bar frame, and the top of the positioning pipe is higher than the upper surface of the forming groove. An opening is formed in the bottom of the positioning pipe, and the hanging ring penetrates through the opening and extends into the positioning pipe. By means of the reserved hole structure for construction of the reinforced concrete cover plate, unified, regular and attractive reserved holes can be formed in the surface of the reinforced concrete cover plate, and pits of different sizes are prevented from being formed in the surface of the reinforced concrete cover plate.

Description

Technical Field

[0001] The utility model relates to the technical field of reinforced concrete cover plate molding, in particular to a reinforced concrete cover plate construction reserved hole structure. Background Art

[0002] During the construction of reinforced concrete cover slabs, a number of reserved holes are usually made on the surface of the reinforced concrete cover slabs to facilitate the lifting and transfer of the reinforced concrete cover slabs. The construction of reinforced concrete cover slabs requires a large amount of work and requires a large number of reserved holes. In the prior art, when the concrete is initially set, the operator usually uses a small shovel to remove concrete on both sides of the lifting steel bars in the concrete to form recessed holes on both sides of the lifting steel bars. When lifting the reinforced concrete cover slabs, the hook is passed through the holes and the lifting steel bars are lifted, so that the reinforced concrete cover slabs can be lifted.

[0003] The operation of manually digging concrete to form holes on the surface of reinforced concrete cover plates is laborious and inefficient, and the dug holes have poor forming effects, are irregular, and are not uniformly beautiful. Summary of the invention

[0004] The purpose of the needle of the utility model is to provide a reserved hole structure for the construction of a reinforced concrete cover plate, which can form uniform, regular and beautiful reserved holes on the surface of the reinforced concrete cover plate, avoiding the formation of pits of different sizes on the surface of the reinforced concrete cover plate.

[0005] To this end, the utility model provides a reserved hole structure for the construction of a reinforced concrete cover plate, comprising a forming groove, which is in the shape of a rectangular parallelepiped and comprises two parallel first groove walls and two parallel second groove walls; a steel frame is placed in the forming groove, and a lifting ring is fixed in the steel frame; a positioning member, the positioning member comprises two parallel first positioning rods, and second positioning rods are vertically fixed at both ends of the first positioning rods; the first positioning rod vertically abuts against the first groove wall, and the second positioning rod abuts against the outer wall of the first groove wall; a positioning tube is fixed between the two first positioning rods, the positioning tube extends into the steel frame, and the top of the positioning tube is higher than the upper surface of the forming groove; an opening is provided at the bottom of the positioning tube, and the lifting ring extends into the positioning tube through the opening.

[0006] Preferably, a third positioning rod is vertically fixed on one of the first positioning rods, and a fourth positioning rod is vertically fixed to the end of the third positioning rod; the third positioning rod is vertically overlapped on the second groove wall, and the fourth positioning rod is in conflict with the outer wall of the second groove wall.

[0007] Preferably, the outer surface of the positioning tube is provided with a non-stick layer.

[0008] Preferably, a reinforcing rod is vertically connected between the two first positioning rods.

[0009] Preferably, a rubber sheet is provided at the edge of the opening.

[0010] Compared with the prior art, the advantages and positive effects of the utility model are as follows: the utility model provides a reserved hole structure for the construction of reinforced concrete cover plates, including a forming groove, the forming groove is a rectangular parallelepiped, including two parallel first groove walls and two parallel second groove walls; a steel frame is placed in the forming groove, and a lifting ring is fixed in the steel frame; a positioning member, the positioning member includes two parallel first positioning rods, and the two ends of the first positioning rod are respectively vertically fixed with second positioning rods; the first positioning rod vertically abuts against the first groove wall, and the second positioning rod abuts against the outer wall of the first groove wall; a positioning tube is fixed between the two first positioning rods, the positioning tube extends into the steel frame, and the top of the positioning tube is higher than the upper surface of the forming groove; an opening is provided at the bottom of the positioning tube, and the lifting ring passes through the opening and extends into the positioning tube. The reserved hole structure for the construction of reinforced concrete cover plates of the utility model is simple, stable and reliable, easy to manufacture, and easy to use. The positioning member of the utility model has a simple structure, is easy to manufacture, has low cost, and can be reused.

[0011] By means of the reserved hole structure for construction of the reinforced concrete cover plate of the utility model, uniform, regular and beautiful reserved holes can be formed on the surface of the reinforced concrete cover plate, thus avoiding the formation of pits of different sizes on the surface of the reinforced concrete cover plate.

[0012] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment of a reserved hole structure for construction of a reinforced concrete cover plate of the utility model;

[0014] Figure 2 It is a top view of an embodiment of the reserved hole structure for construction of reinforced concrete cover plate of the utility model;

[0015] Figure 3 It is a structural schematic diagram of an embodiment of a positioning member of a reserved hole structure for construction of a reinforced concrete cover plate of the utility model;

[0016] Figure 4 It is a partial structural schematic diagram of an embodiment of a reserved hole structure for construction of a reinforced concrete cover plate of the utility model;

[0017] Figure 5 It is a top view of an embodiment of the opening and the lifting ring of the utility model;

[0018] Figure 6 It is a top view of an embodiment of the positioning tube of the utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1-Figure 6 As shown, the reserved hole structure for construction of reinforced concrete cover plate of the utility model includes a forming groove, which is in the shape of a rectangular parallelepiped and includes two parallel first groove walls 11 and two parallel second groove walls 12; a steel frame is provided in the forming groove, and a lifting ring 20 is fixed in the steel frame; a positioning member, the positioning member includes two parallel first positioning rods 31, and the two ends of the first positioning rod 31 are respectively vertically fixed with second positioning rods 32; the first positioning rod 31 vertically abuts against the first groove wall 11, and the second positioning rod 32 abuts against the outer wall of the first groove wall 11; a positioning tube 33 is fixed between the two first positioning rods 31, the positioning tube 33 extends into the steel frame, and the top of the positioning tube 33 is higher than the upper surface of the forming groove; an opening 34 is provided at the bottom of the positioning tube 33, and the lifting ring 20 extends into the positioning tube 33 through the opening 34.

[0021] The forming groove is in a rectangular shape and includes two parallel first groove walls 11 and two parallel second groove walls 12. The first groove walls 11 and the second groove walls 12 can be fixed by bolt connection, so that the forming groove can be easily assembled and disassembled.

[0022] In this embodiment, the steel bar frame is formed by welding a plurality of steel bars to form a rectangular frame body, and a plurality of mutually perpendicular steel bars are welded and fixed inside the rectangular frame body, so that the steel bar frame structure can be stable and reliable.

[0023] The lifting ring 20 may be a U-shaped lifting ring with an opening facing downward commonly used in the technical field. The lifting ring 20 may be welded to the steel bars in the steel bar frame, or may be integrally formed with the steel bars in the steel bar frame, and no specific limitation is made here.

[0024] The positioning tube 33 is a hollow tube. The top of the positioning tube 33 is open, and the bottom of the positioning tube 33 is sealed with a bottom plate 38 . A rectangular opening 34 is provided on the bottom plate 38 .

[0025] like Figure 5As shown, the length of the opening 34 is 5-20 cm greater than the width m of the ring 20, and the width of the opening 34 is 5-20 cm greater than the thickness n of the ring 20, so that the ring 20 can be given enough corresponding insertion space to ensure that the ring 20 can smoothly pass through the opening 34 and extend into the positioning tube 33. In the present application, the ring 20 only needs to correspond to the opening 34 and pass through the opening 34, and the ring 20 is not required to pass through the center position of the opening 34.

[0026] like Figure 6 As shown, preferably, rectangular rubber sheets 37 are fixed to the four edges of the opening 34, two adjacent rubber sheets 37 are not connected, and only one side of a single rubber sheet 37 is fixed to the edge of the opening 34, and the rubber sheet 37 can be folded up and down. When the four rubber sheets 37 are laid flat and located in the same plane, the four rubber sheets 37 can form a gap, and the ring 20 can pass through the gap and extend into the positioning tube 33.

[0027] By arranging four rubber sheets 37 on the inner edge of the opening 34, the four rubber sheets 37 can be folded up and down; when the lifting ring 20 passes through the opening 34, the four rubber sheets 37 will be folded to open the opening 34, so that the lifting ring 20 can smoothly pass through the opening 34 and extend into the positioning tube 33; after the lifting ring 20 extends into the positioning tube 33, the four rubber sheets 27 will be folded and reset to be located on the same plane, thereby achieving a certain degree of blocking of the opening 34 and reducing the opening area of ​​the opening 34, which can prevent concrete from entering the positioning tube 33 through the opening 34 when pouring concrete, thereby preventing the lifting ring 20 from being submerged and fixed by concrete, and ensuring that a regular cylindrical reserved hole is formed.

[0028] The outer surface of the positioning tube 33 is provided with a non-stick layer (not shown in the figure), which can prevent the concrete from sticking to the outer surface of the positioning tube 33, so that the positioning tube 33 can be smoothly moved out of the initial setting concrete, thereby forming a regular cylindrical reserved hole on the concrete cover plate.

[0029] The top of the positioning tube 33 is higher than the upper surface of the forming groove, which can effectively prevent the concrete from submerging the positioning tube 33 and ensure that a regular cylindrical reserved hole can be formed on the concrete cover plate.

[0030] like Figure 1 , Figure 2 As shown, the second positioning rods 32 are fixed vertically downward at both ends of the first positioning rod 31, the first positioning rod 31 overlaps and abuts against the first groove wall 11, the length direction of the first positioning rod 31 is perpendicular to the first groove wall 11, and the second positioning rod 32 abuts against the outer wall of the first groove wall 11, so that the first positioning rod 31 and the second positioning rod 32 can abut and engage with the first groove wall 11.

[0031] like Figure 1 , Figure 2 As shown, a third positioning rod 35 is vertically fixed to the first positioning rod 31 close to the second slot wall 12, and a fourth positioning rod 36 is vertically fixed downward to the end of the third positioning rod 35. The third positioning rod 35 overlaps and abuts against the second slot wall 12, the third positioning rod 35 is perpendicular to the second slot wall 12, and the fourth positioning rod 36 abuts against the outer wall of the second slot wall 12, so that the third positioning rod 35 and the fourth positioning rod 36 can abut and engage on the second slot wall 12.

[0032] The first positioning rod 31 , the second positioning rod 32 , the third positioning rod 35 and the fourth positioning rod 36 may be fixed together by welding or by other processes, which are not specifically limited here.

[0033] The length direction of the first positioning rod 31 is perpendicular to the axial direction of the positioning tube 33 . The two first positioning rods 31 can be welded and fixed on the outer wall of the positioning tube 33 , respectively, and no specific limitation is made here.

[0034] A reinforcing rod 39 is also vertically welded between the two first positioning rods 31, so that the positioning member structure is stable and reliable, and has a long service life. In addition, the reinforcing rod 39 can also serve as a handle, and holding the reinforcing rod 39 can facilitate the movement and use of the positioning member.

[0035] Through the abutment and engagement of the first positioning rod 31 and the second positioning rod 32 on the first groove wall 11, and the abutment and engagement of the third positioning rod 35 and the fourth positioning rod 36 on the second groove wall 12, the positioning tube 33 can be positioned, so that the positioning piece can be firmly and reliably engaged on the forming groove, and the positioning tube 33 can be stably and reliably erected in the steel frame, avoiding the positioning tube 33 from being displaced and tilted, thereby ensuring the realization of a regular cylindrical reserved hole.

[0036] The method for casting the reinforced concrete cover slab is a common method in the technical field and is not specifically limited here.

[0037] When pouring the reinforced concrete cover plate, the steel frame is placed in the rectangular forming groove 10, the first positioning rod 31 and the second positioning rod 32 are pressed against and engaged with the first groove wall 11, and the third positioning rod 35 and the fourth positioning rod 36 are pressed against and engaged with the second groove wall 12; the positioning tube 33 is moved from top to bottom into the steel frame, and during the movement of the positioning tube 33, the lifting ring 20 passes through the opening 34 and extends into the positioning tube 33. Concrete is poured in the forming groove, and when the concrete is initially set, the positioning piece is taken out as a whole, and then the concrete cover plate is solidified and formed. After the positioning tube 33 is moved out, a cylindrical reserved hole will be formed on the concrete cover plate, and the lifting ring 20 is located in the reserved hole.

[0038] The reserved holes for construction of the reinforced concrete cover plate of the utility model have a simple structure, are stable and reliable, and are easy to manufacture and use.

[0039] By means of the reserved hole structure for construction of the reinforced concrete cover plate of the utility model, uniform, regular and beautiful reserved holes can be formed on the surface of the reinforced concrete cover plate 30 , thus avoiding the formation of pits of different sizes on the surface of the reinforced concrete cover plate 30 .

[0040] The positioning piece of the utility model has a simple structure, is easy to manufacture, has a low cost, and can be reused.

[0041] The positioning piece can be manufactured according to the size of the molding groove and the position of the ring 20 in the molding groove, so that when the positioning piece is engaged with the molding groove, the opening 34 at the bottom of the positioning tube 33 can correspond to the ring 20, and no specific limitation is made here.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A reserved hole structure for construction of reinforced concrete cover plate, characterized in that: include A forming groove, the forming groove is in a rectangular parallelepiped shape and includes two parallel first groove walls and two parallel second groove walls; A steel bar frame is placed in the molding groove, and a lifting ring is fixed in the steel bar frame; A positioning member, the positioning member comprises two first positioning rods arranged in parallel, and second positioning rods are respectively vertically fixed to both ends of the first positioning rod; the first positioning rod vertically abuts against the first groove wall, and the second positioning rod abuts against the outer wall of the first groove wall; A positioning tube is fixed between the two first positioning rods, the positioning tube extends into the steel bar frame, and the top of the positioning tube is higher than the upper surface of the forming groove; An opening is arranged at the bottom of the positioning tube, and the hanging ring passes through the opening and extends into the positioning tube.

2. The reserved hole structure for construction of reinforced concrete cover plate according to claim 1, characterized in that: A third positioning rod is vertically fixed on one of the first positioning rods, and a fourth positioning rod is vertically fixed on the end of the third positioning rod; The third positioning rod is vertically overlapped on the second groove wall, and the fourth positioning rod is in conflict with the outer wall of the second groove wall.

3. The reserved hole structure for construction of reinforced concrete cover plate according to claim 1, characterized in that: The outer surface of the positioning tube is provided with a non-stick layer.

4. The reserved hole structure for construction of reinforced concrete cover plate according to claim 1, characterized in that: A reinforcing rod is vertically connected between the two first positioning rods.

5. The reserved hole structure for construction of reinforced concrete cover plate according to claim 1, characterized in that: A rubber sheet is arranged at the edge of the opening.

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