Thick raft concrete pouring tumbling barrel device
By using multiple small diameter string hoses to form string tube group drainage in thick raft concrete pouring, the problem that existing conduits or string tube structures are difficult to adapt to the complex layout of thick raft reinforcement mesh is solved, and uniform flow and efficient pouring of concrete are achieved.
Patent Information
- Application Number
- CN202421563555.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-03
AI Technical Summary
During the pouring of thick raft concrete, existing conduits or string tube structures are difficult to adapt to the problem of multi-layer layout of steel mesh and inconsistent spacing between upper and lower layers, which makes it difficult to install and place the string tubes, low drainage efficiency and easy to blockage, affecting the quality of concrete casting.
A series of tube hoses with small diameters are used to form a series tube group drainage. The curve of the tube hoses is adapted to the obstruction of the steel mesh, and the uniform drainage of concrete is achieved, and fixed to the lower port of the upper hopper of the tube is snapped to simplify the installation and replacement process.
It effectively prevents the separation of concrete aggregates, improves the matching degree between the drainage speed and the discharge outlet discharge outlet discharge speed, solves the problems of pipe blocking and installation inconvenient, and improves the quality of concrete pouring and construction efficiency.
Smart Images
Figure CN222782063U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of construction engineering, and specifically relates to the field of concrete pouring technology, and in particular to a thick raft slab concrete pouring string tube device. Background Art
[0002] With the rapid development of urbanization, there are more and more super high-rise buildings in cities. The higher the building, the deeper its foundation is often buried and the thicker the foundation is. When the foundation raft slab concrete pouring thickness exceeds 2m, when pouring the lowest layer of concrete, if the concrete at the discharge port is allowed to freely pour directly from the raft slab steel bar surface into the raft slab bottom, due to the large thickness of the raft slab and the dense distribution of the multiple layers of steel mesh of the raft slab and the small spacing between the steel bars, the coarse aggregate in the concrete is easy to come into direct contact with the steel mesh of different layers and splash everywhere, resulting in obvious segregation of the coarse aggregate and the fine aggregate in the concrete. In addition, the coarse aggregate accumulates within a certain range after splashing, making it difficult to evenly vibrate the concrete, which has a great impact on the pouring quality of the concrete. In the prior art, in view of the above situation, generally, a conduit or a string of tubes is chosen for drainage, so as to reduce the occurrence of segregation; however, the existing conduit or string of tubes structure does not take into account the multi-layer arrangement of the thick raft steel mesh and the asymmetric or uneven arrangement of the upper and lower layers, which makes it difficult to install the string of tubes in place, and the existing string of tubes or conduits are all single structures, which have the problem of low efficiency during drainage and frequent blockages. Once blockage occurs, it will directly affect the pouring of concrete, so the existing conduit or string of tubes structure is not suitable for the pouring of thick raft slabs. Summary of the invention
[0003] The utility model aims at the deficiencies of the prior art and provides a thick raft slab concrete pouring string tube device. When the thick raft slab steel mesh is arranged in multiple layers and the spacing between the upper and lower steel bars is inconsistent, a plurality of small-diameter string tube hoses are adopted to form a string tube group drainage, so as to prevent the concrete from directly freely pouring and causing the aggregate segregation problem. Moreover, the plurality of string tube hose groups can achieve a drainage speed that is basically consistent with the concrete discharge port unloading speed, thus solving the pipe blockage problem of the string tube. Meanwhile, since the string tube hose can be freely bent appropriately according to the obstruction of the steel mesh, the problem that the conduit or the string tube cannot be smoothly installed in place is solved. In addition, the string tube hose is fixed to the lower mouth of the upper hopper of the string tube by a buckle, so it is convenient to install, disassemble and replace, and the construction operation is simple, with obvious technical and economic benefits.
[0004] To achieve the above-mentioned purpose, the utility model provides a thick raft slab concrete pouring string barrel device, which is used for pouring concrete on a raft slab with a thickness of 3-8m, wherein the raft slab is provided with one or more layers of steel mesh, and the string barrel device comprises a hopper and a plurality of string barrel hoses, wherein the hopper is a material receiving container which is open at the upper end and closed at the lower end, and a plurality of discharge ports which match the number and diameter of the string barrel hoses are opened at its closed end, and a number of string barrel interfaces which are the same as the number of the string barrel hoses are fixedly connected below the hopper, and each string barrel interface is connected to the discharge port; the plurality of string barrel hoses are respectively connected to the plurality of string barrel interfaces, and the diameter of each string barrel hose is less than or equal to the mesh spacing of the steel mesh of the raft slab to be poured.
[0005] The better technical solution of the utility model is as follows: the hopper is located above the uppermost steel mesh of the raft slab to be cast, each string hose passes through the mesh holes of one or more layers of steel mesh and extends vertically into the raft slab, and the bottom end of each string hose is located 300-500mm above the bottom surface of the raft slab casting.
[0006] The better technical solution of the utility model: the string barrel interface is a hard steel pipe welded to the bottom surface of the hopper; the string barrel hose is a rubber hose or a plastic hose, and the inner diameter matches the outer diameter of the string barrel interface, each string barrel hose is sleeved outside the corresponding string barrel interface and fixed by a clamp.
[0007] The better technical solution of the utility model is as follows: the length of the string tube interface is 150mm-250mm, the outer diameter is 80-120mm, and the outer diameter of the string tube interface is not greater than the mesh spacing of the steel mesh.
[0008] The better technical solution of the utility model is as follows: the number of the tube hoses is 2-6, which are arranged side by side, each tube hose is a whole hose or multiple sections of hoses connected by a hose connector, and the curvature of each tube hose does not exceed 30 degrees.
[0009] The preferred technical solution of the utility model is that the feeding area of the plurality of string hoses matches the discharging area of the discharging port of the concrete pouring mechanism above the hopper.
[0010] The preferred technical solution of the utility model is as follows: the hopper is a truncated cone-shaped material receiving container which is larger at the top and smaller at the bottom and is formed by welding steel plates; the hopper has a depth of 300-400mm and a pair of lifting ears is arranged on the upper opening of the hopper.
[0011] A more optimal technical solution of the utility model: the mesh spacing of the steel mesh does not exceed 200mm.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The utility model provides a thick raft slab concrete pouring string tube device. When the thick raft slab steel mesh is arranged in multiple layers and the spacing between the upper and lower layers of steel bars is inconsistent, a plurality of small-diameter string tube hoses are used to form a string tube group drainage, thereby preventing the concrete from directly freely pouring and causing aggregate segregation problems. The plurality of string tube hose groups can achieve a drainage speed that is basically consistent with the concrete discharge port unloading speed, thereby solving the pipe blockage problem of the string tube. At the same time, since the string tube hose can be freely bent appropriately according to the obstruction of the steel mesh, the problem that the conduit or the string tube cannot be smoothly installed in place is solved. In addition, the string tube hose is fixed to the lower mouth of the upper hopper of the string tube by a buckle, which is convenient to install, disassemble and replace, and the construction operation is simple, with obvious technical and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 This is a top view of the hopper of the utility model;
[0016] Figure 3 This is a schematic diagram of the use and installation of the utility model;
[0017] Figure 4 yes Figure 3 A top view of
[0018] Figure 5 It is an enlarged schematic diagram of the hose connector.
[0019] In the figure: 1-hopper, 100-discharge port, 2-tube hose, 3-tube interface, 4-clamp, 5-raft, 500-steel mesh, 501-steel support, 6-lifting ear, 7-hose connector, 701-upper section hose, 702-lower section hose, 703-hose clamp, 8-discharge port of concrete pouring mechanism. DETAILED DESCRIPTION
[0020] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the utility model and all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model.
[0021] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the products of the utility model are usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present utility model.
[0022] The embodiment provides a thick raft concrete pouring string tube device for pouring concrete on a thick raft. The thickness of the raft 5 is generally 3-5m, and the thickness of the local deep pit of the raft can reach 7-8m. Figure 3 As shown, the raft 5 is provided with four layers of steel mesh 500, which are divided into a surface reinforcement mesh, two layers of additional steel mesh and a bottom reinforcement mesh from top to bottom. The four layers of steel mesh are connected by a steel support 501 to form a steel structure of the raft. The diameter of the longitudinal and transverse force-bearing steel bars of the surface reinforcement mesh and the bottom reinforcement mesh is larger than 28 mm, and the spacing between the steel bars does not exceed 200 mm. The additional steel mesh is provided to control temperature stress, and the diameter of the longitudinal and transverse steel bars does not exceed 16 mm, and the spacing between the steel bars does not exceed 200 mm. The steel support 501 uses channel steel to support the surface reinforcement mesh and the additional steel mesh.
[0023] The string device in the embodiment is as follows Figure 1 and Figure 2 As shown, it includes a hopper 1 and four string tube hoses 2. The hopper 1 is a material receiving container with an open upper end and a closed lower end. It is a truncated cone-shaped material receiving container with a larger upper end and a smaller lower end formed by welding steel plates. The upper opening diameter of the hopper 1 is 500-600mm, and a pair of 100*50mm lifting ears 6 with a thickness of 5mm are provided. The lower opening diameter of the hopper is 250-300mm, and the depth of the hopper 1 is 300-400mm; four discharge ports 100 matching the number and diameter of the string tube hoses 2 are provided at the closed end of the hopper 1, and four string tube interfaces 3 are fixedly connected at the bottom of the hopper 1. The string tube interfaces 3 are made of steel pipes and are directly welded to the bottom of the hopper 1. , each string barrel interface 3 is connected to the discharge port 100; the length of the string barrel interface 3 is 150mm-250mm, the outer diameter is 80-120mm, and the outer diameter of the string barrel interface 3 is not greater than the mesh spacing of the steel mesh 500; the four string barrel hoses 2 are respectively connected to the multiple string barrel interfaces 3, and the diameter of each string barrel hose 2 is less than or equal to the mesh spacing of the raft steel mesh 500 to be cast, the string barrel hose 2 adopts a rubber hose or a plastic hose, and the inner diameter matches the outer diameter of the string barrel interface 3, each string barrel hose 2 is sleeved on the outside of the corresponding string barrel interface 3, and is fixed and clamped by a clamp 4, and the replacement of the hose and the installation and disassembly of the hose are convenient.
[0024] When the tube string device in the embodiment is installed and used, Figure 3 and Figure 4As shown, the hopper 1 is located above the topmost surface steel mesh of the raft slab to be cast, and each string hose 2 passes through the mesh of the four layers of steel mesh 500 and extends vertically into the raft slab 5, and the bottom end of each string hose 2 is located 300-500mm above the bottom surface of the raft slab. The four string hoses 2 are arranged side by side to form a string group drainage to prevent the concrete from directly pouring freely and causing aggregate segregation; the string hose 2 can be freely bent appropriately according to the obstruction of the steel mesh 500, so that the string structure can be smoothly installed in place. If the mesh of the upper and lower layers of steel mesh does not correspond, the string hose 2 can be bent into an S shape, but the curvature of the bending part of each string hose 2 does not exceed 30 degrees to avoid blockage. Each string hose 2 is a whole hose or multiple hose sections connected by a hose connector 7. The length of the string hose 2 varies according to the thickness of the raft slab. The string hose 2 can be replaced with hoses of different lengths according to the casting surface. When the casting depth is within 3m, 2.5m, 2m, 1.5m, and 1m sections can be replaced successively. When the depth exceeds 3m, the hose can be freely combined from the above single section lengths to form the required length. When hose sections of different lengths are connected, Figure 5 As shown, the lower hose 702 is sleeved on the lower end of the upper hose 701 and then fixed by a hose clamp 703 to complete the tongue-and-groove connection.
[0025] In the embodiment, the feed area of the four string tube hoses 2 matches the discharge area of the discharge port 8 of the concrete pouring mechanism above the hopper 1; generally, the diameter of the discharge port 8 of the concrete pouring mechanism is 150-250 mm, and the cross-sectional area of the discharge port 8 of the concrete pouring mechanism is basically the same as the cross-sectional size of the four groups of string tube hoses 2, so as to keep the string tube drainage speed basically consistent with the concrete discharge port unloading speed, so as to reduce the string tube blockage or overflow of the hopper upper mouth.
[0026] In a specific embodiment, the hopper is made of 2mm steel plate, the upper diameter of the hopper is 600mm, a pair of 100*50mm lifting ears with a thickness of 5mm are set, the lower diameter of the hopper is 300mm, the depth of the hopper is 300mm, the lower mouth of the hopper is connected to 4 upper interfaces 3 of the string tube, and the lower mouth of the hopper is placed on the gluten mesh. The upper interface 3 of the string tube is made of 2mm thick steel pipe, and the number of groups is determined to be 4 groups according to the cross-sectional area of the discharge end 1. The diameter of the upper interface of the string tube is 100mm, which does not exceed the net spacing of the steel bars of the gluten mesh of 114mm, and does not exceed the net spacing of the steel bars of the additional steel mesh of 186mm. The length of the upper interface of the string tube is 200mm, and the lower part is connected to the string tube hose 2 respectively. The general pouring depth of this embodiment is 5m, and the deepest is 7m. The sections such as 2.5m+2.5m+1.5m, 2.5m+2.5m+1m, 2.5m+2.5m, 2.5m+2m, 2.5m+1.5m, 2.5m, 2m, 1.5m, and 1m can be combined successively to form the required length. The hose connectors 7 of different lengths are fixed by the clamps 703 to complete the tongue-and-groove connection.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A thick raft slab concrete pouring string tube device, used for pouring concrete on a raft slab (5) with a thickness of 3-8m, wherein the raft slab (5) is provided with one or more layers of steel mesh (500), characterized in that: The tube stringing device comprises a hopper (1) and a plurality of tube stringing hoses (2); the hopper (1) is a material receiving container with an open upper end and a closed lower end, and a plurality of discharge ports (100) matching the number and diameter of the tube stringing hoses (2) are provided at the closed end thereof, and tube stringing interfaces (3) equal in number to the number of the tube stringing hoses (2) are fixedly connected below the hopper (1), and each tube stringing interface (3) is butt-jointed with the discharge port (100); the plurality of tube stringing hoses (2) are respectively connected with the plurality of tube stringing interfaces (3), and the diameter of each tube stringing hose (2) is less than or equal to the mesh spacing of the raft slab steel mesh (500) to be cast.
2. A thick raft slab concrete pouring string tube device according to claim 1, characterized in that: The hopper (1) is located above the uppermost layer of the steel mesh of the raft slab to be cast, and each string hose (2) vertically extends into the raft slab (5) through the mesh holes of one or more layers of the steel mesh (500), and the bottom end of each string hose (2) is located 300-500 mm above the bottom surface of the raft slab casting.
3. A thick raft slab concrete pouring string tube device according to claim 1 or 2, characterized in that: The string barrel interface (3) is a hard steel pipe welded to the bottom surface of the hopper (1); the string barrel hose (2) is a rubber hose or a plastic hose, and the inner diameter matches the outer diameter of the string barrel interface (3); each string barrel hose (2) is sleeved outside the corresponding string barrel interface (3) and fixedly clamped by a clamp (4).
4. A thick raft slab concrete pouring string tube device according to claim 1 or 2, characterized in that: The length of the string tube interface (3) is 150 mm-250 mm, the outer diameter is 80 mm-120 mm, and the outer diameter of the string tube interface (3) is not greater than the mesh spacing of the steel mesh (500).
5. A thick raft slab concrete pouring string tube device according to claim 1 or 2, characterized in that: The number of the tube-string hoses (2) is 2-6 and they are arranged side by side. Each tube-string hose (2) is a whole hose or multiple sections of hoses connected by a hose connector (7), and the curvature of each tube-string hose (2) does not exceed 30 degrees.
6. A thick raft slab concrete pouring string tube device according to claim 1 or 2, characterized in that: The feeding area of the plurality of string hoses (2) matches the discharging area of the discharging port (8) of the concrete pouring mechanism above the hopper (1).
7. A thick raft slab concrete pouring tube device according to claim 1 or 2, characterized in that: The hopper (1) is a truncated cone-shaped material receiving container made of welded steel plates, which is larger at the top and smaller at the bottom. The depth of the hopper (1) is 300-400 mm, and a pair of lifting ears (6) are arranged at the upper opening of the hopper (1).
8. A thick raft slab concrete pouring tube device according to claim 1 or 2, characterized in that: The mesh spacing of the steel mesh (500) does not exceed 200 mm.