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, and a steel bar frame is arranged in the forming groove. A horizontally-arranged abutting plate is fixed in the steel bar frame, and a hanging ring is fixed to the abutting plate. The positioning piece comprises two positioning rods which are arranged in parallel, a positioning pipe is fixed between the two positioning rods, and the length direction of the positioning rods is perpendicular to the axial direction of the positioning pipe; the two positioning rods are clamped on the groove wall of the forming groove, the bottom of the positioning pipe abuts against the abutting plate, the hanging ring is located in the positioning pipe, and the top of the positioning pipe is higher than the upper surface of the forming groove. The reserved hole for construction of the reinforced concrete cover plate is simple in structure, stable, reliable, convenient to manufacture and convenient to use. The positioning pipe is blocked by the limiting plate, so that concrete can be effectively prevented from flowing into the positioning pipe, uniform, regular and attractive preformed holes can be formed in the surface of the reinforced concrete cover plate, and pits with 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. Utility Model Content

[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. By blocking the positioning tube with a limit plate, concrete can be effectively prevented from flowing into the positioning tube, thereby forming a uniform, regular and beautiful reserved hole 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, in which a steel bar frame is provided; a horizontally arranged resistance plate is fixed in the steel bar frame, and a lifting ring is fixed on the resistance plate; and also comprises a positioning member, wherein the positioning member comprises two parallel positioning rods, a positioning tube is fixed between the two positioning rods, and the length direction of the positioning rod is perpendicular to the axial direction of the positioning tube; the two positioning rods are clamped on the groove wall of the forming groove, the bottom of the positioning tube is in resistance to the resistance plate, the lifting ring is located in the positioning tube, and the top of the positioning tube is higher than the upper surface of the forming groove.

[0006] Preferably, the forming groove comprises two groove walls parallel to each other, and two engaging grooves are provided on the groove walls; the spacing between the two engaging grooves is equal to the spacing between the two positioning rods, and the positioning rods are engaged in the engaging grooves.

[0007] Preferably, both ends of the positioning rod extend out of the groove wall, and a handle is provided at the extended end of the positioning rod.

[0008] Preferably, the outer surface of the positioning tube is provided with a non-stick layer.

[0009] Preferably, the abutment plate is provided with a protruding abutment ring for limiting the positioning tube.

[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, in which a steel bar frame is provided; a horizontally arranged abutment plate is fixed in the steel bar frame, and a lifting ring is fixed on the abutment plate; and a positioning member is also included, and the positioning member includes two parallel positioning rods, and a positioning tube is fixed between the two positioning rods, and the length direction of the positioning rod is perpendicular to the axial direction of the positioning tube; the two positioning rods are engaged with the groove wall of the forming groove, the bottom of the positioning tube abuts against the abutment plate, the lifting ring is located in the positioning tube, and the top of the positioning tube is higher than the upper surface of the forming groove. 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. By blocking the positioning tube with a limiting plate, concrete can be effectively prevented from flowing into the positioning tube, so that a uniform, regular and beautiful reserved hole can be formed on the surface of the reinforced concrete cover plate, and pits of different sizes can be avoided from being formed on the surface of the reinforced concrete cover plate.

[0011] 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

[0012] 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;

[0013] Figure 2 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;

[0014] Figure 3 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;

[0015] Figure 4 It is a top view of an embodiment of the molding groove of the utility model;

[0016] Figure 5 It is a structural schematic diagram of an embodiment of the positioning member of the utility model;

[0017] Figure 6 It is a top view of another embodiment of the contact plate of the utility model. DETAILED DESCRIPTION

[0018] 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.

[0019] 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, a steel frame is arranged in the forming groove, a contact plate 21 is fixed in the steel frame, and a lifting ring 20 is fixed on the contact plate 21. It also includes a positioning member, which includes two parallel positioning rods 31, a positioning tube 32 is fixed between the two positioning rods 31, and the length direction of the positioning rod 31 is perpendicular to the axial direction of the positioning tube 32; the two positioning rods 31 are engaged with the groove wall 11 of the forming groove, the bottom of the positioning tube 32 is in contact with the contact plate 21, and the lifting ring 20 is located in the positioning tube 32.

[0020] In this embodiment, the steel bar frame is welded by a plurality of steel bars 12 to form a rectangular frame, and a plurality of mutually perpendicular steel bars 12 are welded and fixed inside the rectangular frame, so that the steel bar frame structure can be stable and reliable.

[0021] A plurality of connecting rods (not shown in the figure) are fixed to the edge and bottom of the abutment plate 21. The plurality of connecting rods can be welded and fixed to the plurality of steel bars 12 in the steel bar frame, so that the abutment plate 21 can be firmly and reliably fixed in the steel bar frame.

[0022] The lifting ring 20 may be a U-shaped lifting ring with an opening facing downwards commonly used in the technical field, and the end of the lifting ring 20 may be welded and fixed on the abutment plate 21, or the lifting ring 20 and the abutment plate 21 may be integrally formed by a processing technique, and no specific limitation is made here. The abutment plate 21 is firmly and reliably fixed in the steel frame, so that the lifting ring 20 can be firmly and reliably fixed in the steel frame, and further, the lifting ring 20 can be effectively prevented from being separated from the reinforced concrete cover plate.

[0023] The abutment plate 21 is disposed horizontally, and the positioning tube 32 is placed on the abutment plate 21 , so that the bottom opening of the positioning tube 32 can be blocked.

[0024] The positioning tube 32 may be a hollow tube with both ends open, and the abutment plate 21 may be circular, with a diameter greater than that of the positioning tube 32. The abutment plate 21 may block the bottom opening of the positioning tube 32 to prevent concrete from flowing into the positioning tube 32, thereby forming a cylindrical reserved hole. The lifting ring 20 is located in the formed reserved hole, and the formed reinforced concrete cover plate may be hoisted through the lifting ring 20.

[0025] The abutment plate 21 may be provided with a protrusion and an annular limiting ring 22 which can limit the positioning tube 32 .

[0026] In this embodiment, Figure 3As shown, the inner diameter of the limiting ring 22 can be greater than or equal to the outer diameter of the positioning tube 32. When the positioning tube 32 is placed on the resistance plate 21, the positioning tube 32 can just fit on the inner side of the limiting ring 22; thereby, the positioning tube 32 can be limited to prevent the positioning tube 32 from tilting; in addition, the bottom of the positioning tube 32 can also be effectively sealed to effectively prevent concrete from flowing into the positioning tube 32.

[0027] Alternatively, in another preferred embodiment, the inner diameter of the limiting ring 22 can be smaller than or equal to the inner diameter of the positioning tube 32. When the positioning tube 32 is placed on the resistance plate 21, the positioning tube 32 can just fit on the outside of the limiting ring 22. This can limit the positioning tube 32 and prevent the positioning tube 32 from tilting. In addition, it can also effectively seal the bottom of the positioning tube 32 and effectively prevent concrete from flowing into the positioning tube 32.

[0028] Or, in another preferred embodiment, as Figure 6 As shown, the abutment plate 21 is provided with an annular groove 24, and the bottom of the positioning tube 32 is inserted into the annular groove 24, so as to limit the positioning tube 32. The difference between the outer diameter and the inner diameter of the annular groove 24 is equal to the wall thickness of the positioning tube 32, so that the positioning tube 32 can be just inserted into the annular groove 24, ensuring that the positioning tube 32 is effectively limited.

[0029] The outer surface of the positioning tube 32 is provided with a non-stick layer (not shown in the figure), so as to effectively prevent the concrete from sticking to the positioning tube 32 , thereby facilitating the removal of the positioning tube 32 .

[0030] The top of the positioning tube 32 is higher than the top opening of the forming groove, so that the positioning tube 32 can be extended out of the upper surface of the reinforced concrete cover plate, which can effectively prevent the positioning tube 32 from being submerged in the concrete and ensure that the reserved hole can be effectively formed.

[0031] In this embodiment, the forming groove may be a forming groove commonly used in the technical field for forming reinforced concrete cover plate construction, and no specific limitation is made here.

[0032] The forming groove may be in a rectangular parallelepiped shape and include four groove walls 11 . Two adjacent groove walls 11 may be connected by bolts, thereby facilitating assembly and disassembly of the forming groove.

[0033] Two parallel groove walls 11 on the forming groove are respectively provided with two engaging grooves 13 . The distance between the two engaging grooves 13 on each groove wall 11 is equal to the distance between the two positioning rods 31 . The positioning rods 31 are engaged in the engaging grooves 13 .

[0034] The positioning rod 31 is engaged in the engaging groove 13 , which can limit the positioning rod 31 and the positioning tube 32 , thereby preventing the positioning rod 31 from being displaced and preventing the positioning tube 32 from being tilted or tilted.

[0035] The positioning rod 31 can be welded and fixed on the outer wall of the positioning tube 32, or the positioning rod 31 and the positioning tube 32 can be integrally formed through a processing technology, which is not specifically limited here.

[0036] In this embodiment, the cross-section of the positioning rod 31 is rectangular, and the cross-section of the engaging groove 13 is rectangular. The engaging groove 13 is adapted to the positioning rod 31, which can effectively prevent the positioning rod 31 from being displaced, so that the positioning piece can be firmly engaged in the molding groove.

[0037] Both ends of the positioning rod 31 extend out of the engaging groove 13, and a handle (not shown in the figure) is provided at the extended end of the positioning rod 31. By providing the handle, the positioning rod 31 can be easily grasped and used.

[0038] Alternatively, in other preferred embodiments, the positioning rod 31 may be cylindrical, and the cross-sectional shape of the engaging groove 13 may be semicircular, which is not specifically limited herein.

[0039] The casting method of the reinforced concrete cover slab is a common method in the technical field and is not specifically limited here.

[0040] When pouring the reinforced concrete cover plate, the steel frame is placed in the rectangular forming groove. The positioning piece is placed on the forming groove, wherein the two ends of the positioning rod 31 are respectively engaged in the engaging grooves 13 of the two groove walls 11, the positioning tube 32 is placed on the abutment plate 21, and the lifting ring 20 is located in the positioning tube 32. Concrete is poured in the forming groove, and when the concrete is initially set, the positioning piece is taken out as a whole, the forming groove is disassembled and removed, and then the reinforced concrete cover plate 30 is solidified and formed. A regular and beautiful cylindrical reserved hole can be formed on the surface of the formed reinforced concrete cover plate 30.

[0041] The reinforced concrete cover plate construction reserved hole structure of the utility model is simple, stable, reliable and easy to use. The blocking of the positioning tube 32 by the limit plate 21 can effectively prevent concrete from flowing into the positioning tube 32, so that a uniform, regular and beautiful cylindrical reserved hole can be formed 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 30.

[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, comprising a forming groove, wherein a steel bar frame is arranged in the forming groove; characterized in that: A horizontally arranged abutment plate is fixed in the steel bar frame, and a lifting ring is fixed on the abutment plate; It also includes a positioning member, which includes two positioning rods arranged in parallel, a positioning tube is fixed between the two positioning rods, and the length direction of the positioning rod is perpendicular to the axial direction of the positioning tube; The two positioning rods are clamped on the groove wall of the forming groove, the bottom of the positioning tube abuts against the abutment plate, the hanging ring is located in the positioning tube, and the top of the positioning tube is higher than the upper surface of the forming groove.

2. The reserved hole structure for construction of reinforced concrete cover plate according to claim 1, characterized in that: The forming groove comprises two groove walls parallel to each other, and two engaging grooves are arranged on the two groove walls; The distance between the two engaging grooves on each groove wall is equal to the distance between the two positioning rods. The two ends of the positioning rod are respectively engaged in the two engaging grooves corresponding to the two groove walls.

3. The reserved hole structure for construction of reinforced concrete cover plate according to claim 1, characterized in that: Both ends of the positioning rod extend out of the slot wall, and a handle is provided at the extended end of the positioning rod.

4. 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.

5. The reserved hole structure for construction of reinforced concrete cover plate according to claim 1, characterized in that: The abutment plate is provided with a protruding abutment ring for limiting the positioning tube.

6. The reserved hole structure for construction of reinforced concrete cover plate according to claim 1, characterized in that: The abutment plate is provided with an annular groove, and the bottom of the positioning tube is inserted into the annular groove.

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