Supporting-free device for pay-off hole

Abstract

The utility model relates to a support-free device for a pay-off hole. The paying-off hole is in a square cone shape and is formed in the middle of the floor plate; the supporting-free device for the pay-off hole comprises a conical plug which is arranged at the bottom of the pay-off hole, and the upper end face and the lower end face of the conical plug are horizontal. The side wall of the conical plug is attached to the side wall of the pay-off hole, and the lower end of the conical plug extends out of the pay-off hole. And a hook is arranged at the top of the conical plug. According to the supporting-free device for the pay-off hole, the conical plug is adopted to plug the bottom of the conical pay-off hole, concrete pouring can be directly carried out above the plug, supporting below the pay-off hole is avoided, the structure is simple, and manpower and material resources are saved; the hooks on the conical plugs are connected with the reinforcing mesh in a hanging manner, so that the reinforcing mesh can be fixed, and the reinforcing mesh is prevented from deviating during pouring; the reinforcing mesh provides pulling force for the plugs at the same time, and the situation that the conical plugs apply too large transverse pressure to the floor plate in the pouring process is avoided; and the strength of the poured concrete can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, in particular to a device for setting out hole free support. BACKGROUND

[0002] In building engineering, setting out hole usually refers to the hole set for facilitating setting out, demarcating building position or carrying out other related work. These holes are usually temporary, used to ensure accurate positioning and construction. Setting out hole can help engineers and construction personnel demarcate the coordinates or structural features of the building on the ground, thereby ensuring the accuracy of construction. After use, the setting out hole generally needs to be filled;

[0003] The existing filling method of setting out hole is to support and fix the formwork at the bottom of the setting out hole, and then use concrete to pour and fill; but it is difficult to stably support the bottom of the setting out hole, and the process is complex, very time-consuming and labor-intensive; therefore, a setting out hole filling device that can avoid support is needed. SUMMARY

[0004] The utility model aims at solving the above-mentioned problem, providing a device for setting out hole free support.

[0005] The technical scheme of the utility model is: a device for setting out hole free support, the setting out hole is square conical and is arranged in the middle of the floor slab; the device comprises a conical plug, the conical plug is arranged at the bottom of the setting out hole, and the upper and lower end faces thereof are horizontal; the side wall of the conical plug is attached to the side wall of the setting out hole. The conical plug is used to plug the bottom of the conical setting out hole, concrete can be directly poured above the plug, and support under the setting out hole is avoided.

[0006] Preferably, the lower end of the conical plug extends out of the setting out hole. The conical plug and the side wall of the setting out hole can be more closely attached.

[0007] The conical plug is a prefabricated concrete structure.

[0008] Preferably, the height of the conical plug is one third of the height of the floor slab.

[0009] Preferably, the upper top surface of the conical plug is uniformly provided with hooks; the hooks are arranged in parallel in several groups, each group of hooks is oppositely provided with two hooks, and the distance between adjacent groups of hooks is the same. The hooks can provide fixing points and can be hoisted when installing the conical plug, so that installation is more convenient.

[0010] Further, the hooks are poured in the inside of the conical plug; the connection between the hooks and the conical plug can be more fastened.

[0011] Preferably, the device is further provided with a square steel mesh, the steel mesh is horizontally arranged, a plurality of fixing ends are arranged around the steel mesh, and vertical steel grooves are arranged on the side walls of the wire laying hole, and the fixing ends of the steel mesh are arranged in the steel grooves. The steel mesh arranged in the wire laying hole can increase the strength of the poured concrete and avoid cracking of the poured concrete.

[0012] Further, the steel mesh is arranged above the conical plug, and the hooks are hung on the steel mesh. The hooks on the conical plug are hung on the steel mesh, which can exert a downward pulling force on the steel mesh to avoid deviation of the steel mesh during pouring; the steel mesh simultaneously provides a pulling force on the conical plug to avoid the conical plug exerting excessive lateral pressure on the floor slab during pouring; and the strength of the poured concrete is also increased.

[0013] Still further, the steel mesh is provided with a plurality of layers, and the hooks are hung on any steel mesh; more dense steel meshes can be arranged at the position of pouring concrete to increase the strength of the poured concrete.

[0014] The device for wire laying hole free support has the following advantages.

[0015] 1. The conical plug is used to plug the bottom of the conical wire laying hole, concrete can be directly poured above the plug, supporting under the wire laying hole is avoided, the structure is simple, and manpower and material resources are saved; the top surface of the poured concrete is flat, and subsequent treatment processes are saved.

[0016] 2. The hooks on the conical plug are hung on the steel mesh, which can fix the steel mesh and avoid deviation of the steel mesh during pouring; the steel mesh simultaneously provides a pulling force on the plug to avoid the conical plug exerting excessive lateral pressure on the floor slab during pouring; and the strength of the poured concrete is also increased. DRAWINGS

[0017] Figure 1 is a schematic view of the device for wire laying hole free support of the utility model Figure 1 ;

[0018] Figure 2 is Figure 1 a top view;

[0019] Figure 3 is Figure 2 an A-A sectional view of the device for wire laying hole free support of the utility model;

[0020] Figure 4 is Figure 2 a B-B sectional view of the device for wire laying hole free support of the utility model;

[0021] Figure 5 is a structural schematic view of the conical plug.

[0022] In the figure: 00. floor slab, 01. wire hole, 011. steel groove, 1. steel mesh, 2. conical plug, 21. hook. DETAILED DESCRIPTION

[0023] Embodiment one: see Figures 1-5 A wire hole 01 is a square cone, which is arranged in the middle of the floor slab 00; the device includes a conical plug 2, which is arranged at the bottom of the wire hole 01, and the upper and lower end faces are horizontal; the side wall of the conical plug 2 is in close contact with the side wall of the wire hole 01. The conical plug 2 is used to block the bottom of the conical wire hole, and the concrete can be directly poured above the plug, avoiding supporting below the wire hole 01.

[0024] The conical plug 2 is a prefabricated concrete structure.

[0025] The lower end of the conical plug 2 extends out of the wire hole 01. It can make the side wall of the conical plug 2 and the wire hole 01 more closely.

[0026] The height of the conical plug 2 is one third of the height of the floor slab 00.

[0027] The upper top surface of the conical plug 2 is uniformly provided with hooks 21; the hooks 21 are arranged side by side in several groups, each group of hooks 21 is oppositely provided with two hooks 21, and the spacing of adjacent groups of hooks 21 is the same. It can provide a fixed point, which can be hoisted when installing the conical plug 2, and the installation is more convenient.

[0028] The hooks 21 are poured inside the conical plug 2; it can make the connection between the hooks 21 and the conical plug 2 more firm.

[0029] The device is also provided with a square steel mesh 1, which is horizontally arranged, and a plurality of fixed ends are arranged around the steel mesh 1; the side wall of the wire hole 01 is provided with a vertical steel groove 011, and the fixed end of the steel mesh 1 is arranged in the steel groove 011. The steel mesh 1 is arranged in the wire hole 01, which can increase the strength of the poured concrete and avoid cracking of the poured concrete.

[0030] The steel mesh 1 is arranged above the conical plug 2, and the hooks 21 are hung on the steel mesh 1. The hooks 21 on the conical plug 2 are hung on the steel mesh 1, which can exert a downward pulling force on the steel mesh 1 to avoid the deviation of the steel mesh 1 during pouring; the steel mesh 1 also provides a pulling force to the conical plug 2 to avoid the conical plug 2 exerting excessive lateral pressure on the floor slab 00 during pouring; it can also increase the strength of the poured concrete.

[0031] The use process of the embodiment includes the following steps:

[0032] ① Select the appropriate specifications of the conical plug 2 and the steel mesh 1;

[0033] ②Cutting a steel bar groove 011 in the side wall of the threading hole 01;

[0034] ③Placing the conical plug 2 at the bottom of the threading hole 01, keeping the side of the conical plug 2 in contact with the side wall of the threading hole 01, and placing the steel bar net 1 into the steel bar groove 011;

[0035] ④Hanging the hook 21 at the top of the conical plug 2 to the steel bar net 1;

[0036] ⑤Pouring concrete above the conical plug 2, keeping the height of the concrete consistent with the height of the floor slab 00;

[0037] ⑥After the poured concrete solidifies, the filling of the threading hole 01 is completed.

[0038] Example Two: Example Two is basically the same as Example One, and the same parts will not be repeated. The difference is that the steel bar net 1 is provided with several layers, and the hook 21 is hung on any steel bar net 1; more dense steel bar net 1 can be arranged at the position where the concrete is poured, increasing the strength of the poured concrete.

Claims

1. A supportless device for a wire-laying hole, wherein the wire-laying hole is square-pyramidal and located in the middle of a floor slab; characterized in that: The device comprises a conical plug arranged at the bottom of the pay-off hole, the upper and lower end faces of which are horizontal; the side wall of the conical plug is in close contact with the side wall of the pay-off hole.

2. The device for drilling a hole without support according to claim 1, characterized in that: The height of the conical plug is one third of the floor slab height.

3. The device for drilling a hole without support according to claim 1, characterized in that: The upper top face of the conical plug is uniformly provided with hooks; the hooks are arranged in several groups side by side, each group of hooks is oppositely provided with two hooks, and the distance between adjacent groups of hooks is the same.

4. The device for drilling a hole without support according to claim 3, characterized in that: The device is further provided with a square steel mesh, which is horizontally arranged, and a plurality of fixing ends are arranged around the steel mesh; the side wall of the pay-off hole is provided with a vertical steel slot, and the fixing end of the steel mesh is arranged in the steel slot.

5. The device for unsupported placement of a wire hole according to claim 4, wherein: The steel mesh is arranged above the conical plug, and the hooks are hung on the steel mesh.

6. The device for drilling a hole without support according to claim 5, characterized in that: The steel mesh is provided with a plurality of layers, and the hooks are hung on any steel mesh.

Images