Anti-floating device for square box core mold

Abstract

The utility model discloses a square box core mold anti-floating device, which comprises a plurality of bases below each square box core mold and screw rods in one-to-one correspondence with the bases, the upper ends of the bases are abutted against and fixed with the square box core molds, the screw rods penetrate through the square box core molds and are fixedly connected with the square box core molds, and the upper ends of the screw rods are convexly arranged on the upper end surfaces of the square box core molds. The lower end is in threaded connection with the base; the base is fixedly connected with a hollow floor slab bottom rib, and the base is located in a hollow floor slab structure. The device is simple in overall structure, the base is poured in the hollow floor slab structure, after pouring of the hollow floor slab is completed, the hollow floor slab does not need to be dismantled, and the dismantling cost is reduced. The square box core mold can be fixed above a bottom rib of a hollow floor slab, the anti-floating capacity of the core mold is ensured, and therefore the thickness of a protective layer of the high-strength square box light core mold and the thickness of the hollow floor slab are controlled, and the construction quality is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of floor construction, and particularly relates to an anti-floating device for a box core mold. Background Art

[0002] At present, after the installation of high-strength box lightweight core molds is completed, during the concrete pouring, due to the impact force and buoyancy when the concrete is dumped, the high-strength box lightweight core molds float and displace, resulting in the inability to control the protective layer thickness of the high-strength box lightweight core molds and the thickness of the hollow floor slab, and it is not easy to ensure the construction quality. During on-site construction, usually the screw heads are directly drilled through the high-strength box lightweight core molds and the formwork, and fixed by self-tapping of the screws. Such a construction method has insufficient anti-floating ability, resulting in the inability to control the protective layer thickness of the high-strength box lightweight core molds and the thickness of the hollow floor slab; moreover, screw heads will appear on the bottom surface of the floor slab, and these screw head parts will cause rust, which is not beautiful and affects the construction quality and appearance quality; these screw heads need to be chiseled later, and the treatment cost is high.

[0003] Therefore, a new technology is needed to solve the problems of insufficient anti-floating of the core mold and high core mold fixing cost during the pouring of the hollow floor slab in the prior art. Summary of the Utility Model

[0004] To solve the above problems in the prior art, the utility model provides an anti-floating device for a box core mold, which can ensure the anti-floating ability of the core mold during the pouring of the hollow floor slab, and has the effects of simple structure and low construction cost.

[0005] The utility model adopts the following technical solutions:

[0006] An anti-floating device for a box core mold includes a plurality of bases located below each box core mold and screws corresponding to each of the bases one by one. The upper end of the base abuts and is fixed to the box core mold. The screw passes through the box core mold and is fixedly connected to the box core mold, and the upper end protrudes from the upper end surface of the box core mold, and the lower end is threadedly connected to the base; the base is fixedly connected to the bottom reinforcement of the hollow floor slab, and the base is located inside the hollow floor slab structure.

[0007] As a further improvement of the technical solution of the utility model, each of the bases includes a bottom plate and a plurality of parallel support columns. A threaded hole is provided in the center of the bottom plate. The screw is threadedly connected to the bottom plate through the threaded hole. The upper ends of the support columns are fixedly connected to the bottom plate, and the base is fixedly connected to the bottom reinforcement of the hollow floor slab through the support columns.

[0008] As a further improvement of the technical solution of the utility model, there are four support columns, which are respectively located at the four corners of the base.

[0009] As a further improvement of the technical solution of the present utility model, a fixing hole is provided at the center of the bottom plate, a connecting nut is embedded in the fixing hole, a threaded section is provided in the central hole of the connecting nut, the central hole of the connecting nut forms the threaded hole, and the screw rod is inserted into the central hole of the connecting nut and is threadedly connected with the connecting nut.

[0010] As a further improvement of the technical solution of the present utility model, the bottom plate is provided with a hollow structure.

[0011] As a further improvement of the technical solution of the present utility model, the base further includes a plurality of side plates. Each side plate is located between two adjacent support columns, and the upper ends of each side plate are fixedly connected to the bottom plate. One support column, one side plate and the other support column are sequentially connected to form an arch shape.

[0012] As a further improvement of the technical solution of the present utility model, it further includes washers and fixing nuts corresponding to each screw rod one by one. Each washer is located above the square box core mold, and the upper end of each screw rod passes through the corresponding washer and is threadedly connected with a fixing nut.

[0013] As a further improvement of the technical solution of the present utility model, at least four bases are provided below each square box core mold and are respectively located at the four corner positions of the square box core mold.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] For the anti-floating device of the square box core mold in this solution, the multiple steel bases and screw rods are fixedly connected to the square box core mold relatively firmly, which can ensure the anti-floating ability of the core mold, can fix the square box core mold above the bottom reinforcement of the hollow floor slab, ensure that the core mold is in a stable state during the pouring process, thereby controlling the protective layer thickness of the high-strength square box lightweight core mold and the thickness of the hollow floor slab, avoiding affecting the protective layer thickness and the thickness of the hollow floor slab due to the floating of the square box core mold during the pouring process, being beneficial to ensuring the construction quality, solving the anti-floating problem of the high-strength square box lightweight core mold, and ensuring the vertical and horizontal positioning of the high-strength square box lightweight core mold in the hollow floor slab. Moreover, the overall structure of the device is simple. The base is poured into the hollow floor slab structure, and after the hollow floor slab is poured, it does not need to be removed, and does not affect the strength of the hollow floor slab structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further details the technology of the present utility model in conjunction with the drawings and specific embodiments:

[0017] Figure 1 It is a schematic connection structure diagram of the screw rod, the base and the square box core mold;

[0018] Figure 2 It is a schematic structural diagram of the present utility model when in use;

[0019] Figure 3 It is a schematic diagram of the screw structure;

[0020] Figure 4 It is a schematic diagram of the gasket structure;

[0021] Figure 5 It is a side view of the base structure;

[0022] Figure 6 It is a top view of the base structure.

[0023] Reference numerals:

[0024] 1 - Screw;

[0025] 2 - Base; 21 - Bottom plate; 22 - Support column; 23 - Side plate; 24 - Threaded hole;

[0026] 3 - Gasket;

[0027] 4 - Connecting nut;

[0028] 5 - Fixing nut;

[0029] 6 - Square box core mold;

[0030] 7 - Bottom rib. Detailed implementation manners

[0031] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and the drawings, so as to fully understand the purpose, solution and effects of the present utility model. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0032] It should be noted that, unless otherwise specified, when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right, etc. descriptions used in the present utility model are only relative to the mutual positional relationship of the various components of the present utility model in the drawings.

[0033] Refer to Figures 1 to 6, a buoyancy resistance device for a square box core mold. The square box core mold 6, such as a high-strength square box lightweight core mold, includes several bases 2 located below each square box core mold 6 and screw rods 1 corresponding to the bases 2 one by one. The lower end of each screw rod 1 has a threaded section. The length of each screw rod 1 can preferably be 300 mm, and the diameter can preferably be 5 mm. At least four bases 2 are provided below each square box core mold 6. The height of each base 2 can preferably be 70 mm, and the width can preferably be 70 mm. The upper end of the base 2 abuts and is fixed to the square box core mold 6. The screw rod 1 passes through the square box core mold 6 and is fixedly connected to the square box core mold 6, and the upper end protrudes from the upper end surface of the square box core mold 6, and the lower end is threadedly connected to the base 2; the base 2 is fixedly connected to the bottom reinforcement 7 of the hollow floor by welding. The base 2 is located inside the hollow floor structure, and the lower end surface of the base 2 is higher than the bottom surface of the hollow floor structure, avoiding the adverse impact on the floor structure caused by penetrating the floor structure. The base 2 can preferably be a steel base 2. The fixed connection of multiple steel bases 2 and screw rods 1 to the square box core mold 6 is relatively stable, which can ensure the buoyancy resistance of the core mold, and the steel base 2 can ensure the thickness of the protective layer. At the same time, pouring the steel base 2 into the floor structure does not affect the strength of the floor structure. In addition, there will be no protruding screw heads and other structures on the bottom surface of the hollow floor, which can reduce the processing cost of later demolition. The specific dimensions of the buoyancy resistance device for the square box core mold in this solution can be selected according to the actual situation. For example, the thickness of the core mold is 240 mm, and the length of each screw rod 1 can be selected as 300 mm. The size of the base can be selected according to the thickness of the protective layer. For example, the thickness of the hollow floor slab is 400 mm, the thickness of the core mold is 240 mm, and the protective layers at both ends are 80 mm each. At this time, the height of the base can preferably be 70 mm, and the size of the gasket can be the same as that of the base.

[0034] During concrete pouring, due to the impact force and buoyancy when the concrete is dumped, the high-strength square box lightweight core mold floats and displaces. The buoyancy resistance device for the square box core mold 6 in this solution can fix the square box core mold 6 above the bottom reinforcement 7 of the hollow floor, ensure the buoyancy resistance of the core mold, thereby controlling the thickness of the protective layer of the high-strength square box lightweight core mold and the thickness of the hollow floor, which is beneficial to ensuring the construction quality, solving the buoyancy resistance problem of the high-strength square box lightweight core mold, and ensuring the vertical and horizontal positioning of the high-strength square box lightweight core mold in the hollow floor.

[0035] Specifically, at least four bases 2 are provided below each square box core mold 6. When there are four bases 2, the four bases 2 are respectively located at the four corners of the square box core mold 6 to ensure that there are bases 2 at the four corners of each square box core mold 6. When a square box core mold 6 is correspondingly provided with multiple bases 2, the multiple bases 2 are evenly arranged relative to the core mold 6 in this direction.

[0036] Specifically, each of the bases 2 includes a bottom plate 21 and a plurality of parallel support columns 22. The plurality of support columns 22 at the bottom of the bottom plate 21 are used to stably support the bottom plate 21. A threaded hole 24 is provided at the center of the bottom plate 21. The screw rod 1 is threadedly connected to the bottom plate 21 through the threaded hole 24. The upper ends of the support columns 22 are fixedly connected to the bottom plate 21. The base 2 is fixedly connected to the bottom reinforcement 7 of the hollow floor slab through the support columns 22.

[0037] Specifically, there are four support columns 22 which are respectively located at the four corner positions of the base 2.

[0038] Specifically, the bottom plate 21 is provided with a hollow-out structure. A fixing hole is provided at the center of the bottom plate 21. A connecting nut 4 is embedded in the fixing hole. A threaded section is provided in the central hole of the connecting nut 4. The central hole of the connecting nut 4 forms the threaded hole 24. The screw rod 1 is inserted into the central hole of the connecting nut 4 and threadedly connected to the connecting nut 4, which is convenient for connecting and fixing the screw rod 1 and the base 2.

[0039] Specifically, the base 2 further includes a plurality of side plates 23. Each of the side plates 23 is located between two adjacent support columns 22. The upper ends of the side plates 23 are fixedly connected to the bottom plate 21. One support column 22, one side plate 23 and another support column 22 are sequentially connected to form an arch shape.

[0040] Specifically, the anti-floating device of the box core mold 6 in this solution further includes gaskets 3 and fixing nuts 5 corresponding to each of the screw rods 1. The diameter of the threaded hole 24 of the fixing nut 5 can be preferably 5 mm. The outer diameter of each gasket 3 can be preferably 70 mm, and the inner diameter can be preferably 8 mm. Each of the gaskets 3 is located above the box core mold 6. The upper end of each screw rod 1 passes through the corresponding gasket 3 and is threadedly connected to a fixing nut 5.

[0041] For other contents of the anti-floating device of the box core mold of the present invention, reference can be made to the prior art and will not be elaborated herein.

[0042] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Therefore, any modifications, equivalent changes and decorations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An anti-floating device for a square box core mold, characterized in that: It includes a plurality of bases located below each square box core mold and screw rods corresponding to each of the bases. The upper end of the base is fixedly abutted against the square box core mold. The screw rod passes through the square box core mold and is fixedly connected to the square box core mold. The upper end of the screw rod is convexly arranged on the upper end surface of the square box core mold, and the lower end is threadedly connected to the base. The base is fixedly connected to the bottom reinforcement of the hollow floor slab, and the base is located in the hollow floor slab structure.

2. The anti-floating device for the square box core mold according to claim 1, characterized in that: Each of the bases includes a bottom plate and a plurality of mutually parallel support columns. A threaded hole is provided in the center of the bottom plate. The screw is threadedly connected to the bottom plate through the threaded hole. The upper end of each of the support columns is fixedly connected to the bottom plate. The base is fixedly connected to the bottom reinforcement of the hollow floor slab through the support columns.

3. The anti-floating device for the square box core mold according to claim 2, characterized in that: The supporting columns are provided in four numbers and are respectively located at the four corners of the base.

4. The anti-floating device for the square box core mold according to claim 2, characterized in that: A fixing hole is provided at the center of the base plate, a connecting nut is embedded in the fixing hole, a threaded section is provided in the center hole of the connecting nut, the center hole of the connecting nut forms the threaded hole, and the screw is inserted into the center hole of the connecting nut and threadedly connected with the connecting nut.

5. The anti-floating device for the square box core mold according to claim 4, characterized in that: The bottom plate is hollowed out.

6. The anti-floating device for the square box core mold according to claim 5, characterized in that: The base also includes a plurality of side panels, each of which is located between two adjacent support columns, and the upper end of each side panel is fixedly connected to the bottom plate, and one support column, one side panel and another support column are connected in sequence to form an arch shape.

7. The anti-floating device for the square box core mold according to claim 1, characterized in that: It also includes washers and fixing nuts corresponding to each of the screw rods. Each of the washers is located above the square box core mold. The upper end of each of the screw rods passes through the corresponding washers and is threadedly connected to a fixing nut.

8. The anti-floating device for the square box core mold according to claim 1, characterized in that: At least four bases are arranged under each square box core mold and are respectively located at the four corners of the square box core mold.

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