Quality control device suitable for cast-in-place floor slab free of formwork disassembly

By designing a quality control device suitable for cast-in-place floor slabs for free demolition, the problem of the flatness of the unsafe demolition-free demolition-free demolition-free demolition-free molten formwork is solved, and the construction efficiency is improved and the project quality is guaranteed.

CN222632627UActive Publication Date: 2025-03-18CHINA MCC5 GROUP CORP LTD
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Patent Information

Application Number
CN202420555414.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-21
Publication Date
2025-03-18
Estimated Expiration
2034-03-21

AI Technical Summary

Technical Problem

In the construction of cast-in-place floor slabs for free disassembly, the flatness of the formwork without disassembly cannot be guaranteed, resulting in large material consumption, large workload, low construction efficiency and long construction period.

Method used

A quality control device is designed, including a floor slab control device and a flatness control device for free disassembly. By adjusting the combination of the leveling disc and the connector, the flatness control of the flatness of the unassembly formwork is realized, and the spacing and thickness of the steel mesh are controlled through the upper and lower steel bar installation grooves.

Benefits of technology

The device can be quickly installed and used, improve construction efficiency, enhance the bonding ability of the formwork without dismantling and structural concrete, improve the pass rate of one-time acceptance, reduce rework, save project costs, and ensure the quality of the project entity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of non-dismantling formwork cast-in-place concrete structure construction, aims to solve the problem that the flatness of a non-dismantling formwork cannot be guaranteed in non-dismantling formwork cast-in-place floor slab construction in the prior art, and provides a quality control device suitable for a non-dismantling formwork cast-in-place floor slab. Comprising a floor slab control device and a non-dismantling formwork flatness control device, and the non-dismantling formwork flatness control device is detachably connected to the bottom of the floor slab control device; the non-dismantling formwork flatness control device comprises a leveling disc, the leveling disc is arranged at the abutted seam of the non-dismantling formwork and attached to the bottom face of the non-dismantling formwork, and the leveling disc is connected with the floor slab control device through a connecting piece. An upper steel bar mounting groove and a lower steel bar mounting groove are formed in the floor slab control device; the device integrates the functions of leveling the non-dismantling formwork, controlling the distance between upper and lower reinforcing meshes of a cast-in-place floor slab, and controlling the thickness of the cast-in-place floor slab and a reinforcing protective layer, and can improve the construction efficiency and ensure the construction quality.
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Description

Technical Field

[0001] The utility model relates to the technical field of construction of cast-in-situ concrete structures without dismantling formwork, and in particular to a quality control device suitable for cast-in-situ floor slabs without dismantling formwork. Background Art

[0002] With the continuous innovation of building materials, the requirements of building energy conservation and the continuous progress of construction technology, the non-dismantling thermal insulation and sound insulation formwork has been developed and applied in some cities in China. The non-dismantling thermal insulation and sound insulation formwork uses composite expanded polystyrene foam insulation board, graphite polystyrene board, XPS board and other insulation materials as the core material, and the two sides are made of polymer mortar and glass fiber mesh composite surface layer, forming a prefabricated board with insulation function and can play the role of non-dismantling formwork.

[0003] At present, the construction method of cast-in-place floor structure with non-removal formwork is mainly as follows: install the non-removal formwork after setting up the formwork support system, tie the cast-in-place floor reinforcement, and finally pour concrete to make the non-removal formwork and the concrete main structure form a whole. During construction, the non-removal formwork is directly laid on the bottom formwork of the formwork support system. The flatness of the non-removal formwork is currently only controlled by the formwork support system, and the flatness of the non-removal formwork cannot be guaranteed. At the same time, the thickness of the cast-in-place floor is controlled by a separate floor thickness pad. The reinforcement spacing, reinforcement protection layer and other indicators are controlled by reinforcement protection layer pads, resulting in a large amount of manpower, material and time consumption. Utility Model Content

[0004] The utility model aims to provide a quality control device suitable for cast-in-place slabs without dismantling formwork, so as to solve the problems in the prior art that the flatness of cast-in-place slabs without dismantling formwork cannot be guaranteed, pads are used to control the thickness of the cast-in-place slabs, the spacing between steel bars and the protective layer of steel bars, the material consumption is large, the workload is large, the construction efficiency is low and the construction period is long.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] The utility model provides a quality control device suitable for cast-in-place floor slabs without disassembly formwork, comprising a floor slab control device and a flatness control device for the non-disassembly formwork, wherein the flatness control device for the non-disassembly formwork is detachably connected to the bottom of the floor slab control device;

[0007] The non-removal formwork flatness control device comprises a leveling disc, which is arranged at the joint of two non-removal formworks and fits the bottom surfaces of the two non-removal formworks. The leveling disc is connected to the bottom of the floor control device through a connecting piece; the floor control device is used to be placed on the top surface of the non-removal formwork;

[0008] The floor control device is provided with an upper steel bar installation groove and a lower steel bar installation groove, and the upper steel bar installation groove and the lower steel bar installation groove are used to place the steel bars in the upper steel bar mesh and the lower steel bar mesh respectively;

[0009] The distance between the upper steel bar installation groove and the lower steel bar installation groove is used to control the spacing between the upper steel bar mesh and the lower steel bar mesh, the distance between the upper steel bar installation groove and the top surface of the floor control device is used to control the protective layer of the upper steel bar mesh, and the distance between the lower steel bar installation groove and the bottom surface of the floor control device is used to control the protective layer of the lower steel bar mesh.

[0010] As the preferred technical solution:

[0011] A semicircular hole is opened on the joint side of the two non-disassembly templates, and the semicircular holes on the two non-disassembly templates are combined to form a circular hole, and the connecting piece is arranged through the circular hole.

[0012] As the preferred technical solution:

[0013] The connecting piece is connected to the center of the leveling disc.

[0014] As the preferred technical solution:

[0015] The connecting piece is a self-tapping screw.

[0016] As the preferred technical solution:

[0017] A threaded hole is provided at the bottom of the floor control device, and the self-tapping screw can be screwed into the threaded hole.

[0018] As the preferred technical solution:

[0019] The floor control device includes a support, and an upper support hook and a lower support hook are arranged on one side of the support, the upper support hook is located above the lower support hook, the upper steel bar installation groove is formed between the upper support hook and the support, and the lower steel bar installation groove is formed between the lower support hook and the support.

[0020] As the preferred technical solution:

[0021] A water stop plate is arranged on the support.

[0022] As the preferred technical solution:

[0023] The water stop plate is located between the upper support hook and the lower support hook.

[0024] As the preferred technical solution:

[0025] The water stop plate and the upper support hook are located on different sides of the support.

[0026] As the preferred technical solution:

[0027] A top plate is arranged on the top of the support, and the top plate is used as a reference for the top surface elevation of the cast-in-place concrete.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0029] The quality control device of the utility model can be quickly installed and used, and integrates the functions of leveling the non-removal formwork, controlling the spacing between the upper and lower steel mesh sheets of the cast-in-place floor slab, and controlling the thickness of the cast-in-place floor slab and the steel bar protective layer. It can improve construction efficiency, increase the bonding ability between the non-removal formwork and structural concrete, improve the one-time acceptance rate of the cast-in-place floor slab structure without dismantling formwork, reduce process rework, save project costs, and ensure the quality of the project entity. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a side view of the quality control device for cast-in-place floor slabs without removing formwork described in the utility model.

[0031] Figure 2 It is a front view of the quality control device for cast-in-place floor slabs without dismantling formwork described in the utility model.

[0032] Figure 3 It is a side view of the floor control device described in the utility model.

[0033] Figure 4 It is a front view of the floor control device described in the utility model.

[0034] Figure 5 It is a top view of the floor control device described in the utility model.

[0035] Figure 6 It is a front view of the non-disassembly template flatness control device described in the utility model.

[0036] Figure 7 It is a top view of the non-disassembly template flatness control device described in the utility model.

[0037] Icons: 1- floor control device, 2- non-disassembly formwork flatness control device, 3- leveling disc, 4- self-tapping screws, 5- upper steel bar installation groove, 6- lower steel bar installation groove, 7- upper support hook, 8- lower support hook, 9- water stop plate, 10- support, 11- top plate. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Example 1

[0040] like Figure 1 and Figure 2 As shown, this embodiment proposes a quality control device suitable for cast-in-place floors with non-removal formwork, including a floor control device 1 and a non-removal formwork flatness control device 2, and the non-removal formwork flatness control device 2 is detachably connected to the bottom of the floor control device 1.

[0041] Specifically, Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the non-removal template flatness control device 2 includes a leveling disc 3, which is arranged at the joint of two non-removal templates, and the leveling disc 3 is arranged to fit the bottom surfaces of the two non-removal templates, and a self-tapping screw 4 is connected in the middle of the leveling disc 3; a threaded hole is provided at the bottom of the floor control device 1, and the self-tapping screw 4 can be screwed into the threaded hole to achieve the connection between the floor control device 1 and the non-removal template flatness control device 2. The self-tapping screw 4 can be connected to it through the through hole on the leveling disc 3, and the rod of the self-tapping screw 4 passes through the through hole on the leveling disc 3. The size of the head of the self-tapping screw 4 is larger than the size of the through hole, and its head is limited to the bottom side of the leveling disc 3.

[0042] A semicircular hole is provided on the joint side of the non-disassembly template, and the semicircular holes on the two non-disassembly templates are combined to form a complete circular hole for the self-tapping screw 4 to pass through, so that the non-disassembly templates can be seamlessly spliced.

[0043] The floor control device 1 is located on the top surface of the non-disassembly formwork, the bottom surface of the floor control device 1 is in contact with the top surface of the non-disassembly formwork, and the thickness D1 of the non-disassembly formwork is between the bottom surface of the floor control device 1 and the leveling disk 3. By adjusting the length of the self-tapping screw 4 screwed into the threaded hole, the distance between the bottom surface of the floor control device 1 and the leveling disk 3 is adjusted to adapt to non-disassembly formworks of different thicknesses.

[0044] like Figure 3-Figure 5As shown, the floor control device 1 is provided with an upper steel bar installation groove 5 and a lower steel bar installation groove 6, and the upper steel bar installation groove 5 and the lower steel bar installation groove 6 are used to place the steel bars in the upper steel bar mesh and the lower steel bar mesh respectively.

[0045] During construction, multiple quality control devices are arranged in the formwork support system. Therefore, multiple floor control devices 1 jointly support the upper steel mesh and the lower steel mesh, so that the upper and lower layers of steel mesh are parallel to each other and separated by a certain distance. The spacing between the upper and lower layers of steel mesh is controlled by the setting height of the upper steel bar installation groove 5 and the lower steel bar installation groove 6. The protective layer of the upper steel mesh is controlled by the distance between the upper steel bar installation groove 5 and the top surface of the floor control device 1, and the protective layer of the lower steel mesh is controlled by the distance between the lower steel bar installation groove 6 and the bottom surface of the floor control device 1.

[0046] In this embodiment, the floor control device 1 includes a support 10, and an upper support hook 7 and a lower support hook 8 are provided on one side of the support 10. The upper support hook 7 is located directly above the lower support hook 8, and the upper steel bar installation groove 5 is formed between the upper support hook 7 and the support 10, and the lower steel bar installation groove 6 is formed between the lower support hook 8 and the support 10.

[0047] The support 10 is provided with a water stop plate 9, which is located between the upper support hook 7 and the lower support hook 8. Since the floor control device 1 will be directly wrapped in concrete after the concrete is cast on the non-removal formwork, the water stop plate 9 is provided to prevent leakage.

[0048] A top plate 11 is provided on the top of the support 10. The top plate 11 serves as a reference for the top elevation of the cast-in-place concrete. The thickness of the cast-in-place floor slab can be controlled based on this reference. Figure 1 and Figure 2 The height of the floor control device 1 is the thickness D2 of the cast-in-place floor.

[0049] Since a plurality of the floor control devices 1 are arranged, the plane where the top plates 11 of the respective floor control devices 1 are located serves as the top surface of the cast-in-place floor, which is beneficial for leveling the top surface of the cast-in-place floor during construction.

[0050] By adopting the quality control device described in the utility model, not only can the flatness of the non-disassembly formwork be controlled, and multiple pieces of the non-disassembly formwork can be spliced ​​and leveled through the leveling disc 3 to improve the flatness of the non-disassembly formwork, but also the upper steel bar installation groove 5 and the lower steel bar installation groove 6 can be used to support the upper steel bar mesh and the lower steel bar mesh, without the need to set up multiple pads, and the spacing between the steel bar meshes, the thickness of the protective layer of the steel bar mesh and the thickness of the cast-in-place floor slab can be conveniently controlled, thereby improving the overall construction quality, reducing the workload, improving the construction efficiency, reducing the number of rework times, and improving the one-time acceptance rate of the cast-in-place floor slab structure of the non-disassembly formwork, thereby saving construction costs.

[0051] The construction method for cast-in-place floor slab construction without dismantling formwork by using the quality control device of the utility model comprises:

[0052] S1. Measure and lay out the floor formwork support, set up the formwork support system, lay the non-disassembly formwork on the floor bottom formwork according to the non-disassembly formwork layout diagram, insert the leveling disc 3 into the joint of the non-disassembly formwork, and tighten it with the floor control device 1 for leveling.

[0053] S2. Tie the floor slab reinforcement according to the design drawings, place the lower reinforcement mesh in the lower reinforcement installation groove 6 of the floor slab control device 1, the lower reinforcement installation groove 6 is 20 mm away from the bottom of the support 10, to control the thickness of the protective layer of the lower reinforcement mesh, place the upper reinforcement mesh in the upper reinforcement installation groove 5 of the floor slab control device 1, the upper reinforcement installation groove 5 is 20 mm away from the top of the support 10, to control the thickness of the protective layer of the upper reinforcement mesh, and finally tie the upper reinforcement mesh and the lower reinforcement mesh separately to form a whole.

[0054] S3. Casting of cast-in-place floor slab concrete is performed. The height of the support 10 is the thickness of the cast-in-place floor slab, and this is used as the elevation to control the thickness and elevation of the cast-in-place floor slab.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A quality control device for cast-in-place floor slabs without formwork removal, characterized in that: It includes a floor control device and a non-removal formwork flatness control device, wherein the non-removal formwork flatness control device is detachably connected to the bottom of the floor control device; The non-removal formwork flatness control device comprises a leveling disc, which is arranged at the joint of two non-removal formworks and fits the bottom surfaces of the two non-removal formworks. The leveling disc is connected to the bottom of the floor control device through a connecting piece; the floor control device is used to be placed on the top surface of the non-removal formwork; The floor control device is provided with an upper steel bar installation groove and a lower steel bar installation groove, and the upper steel bar installation groove and the lower steel bar installation groove are used to place the steel bars in the upper steel bar mesh and the lower steel bar mesh respectively; The distance between the upper steel bar installation groove and the lower steel bar installation groove is used to control the spacing between the upper steel bar mesh and the lower steel bar mesh, the distance between the upper steel bar installation groove and the top surface of the floor control device is used to control the protective layer of the upper steel bar mesh, and the distance between the lower steel bar installation groove and the bottom surface of the floor control device is used to control the protective layer of the lower steel bar mesh.

2. The quality control device for cast-in-place floor slabs without formwork removal according to claim 1 is characterized in that: A semicircular hole is provided on the joint side of the two non-disassembly templates, and the semicircular holes on the two non-disassembly templates are combined to form a circular hole, and the connecting piece is arranged through the circular hole.

3. The quality control device for cast-in-place floor slabs without formwork removal according to claim 1 is characterized in that: The connecting piece is connected to the center of the leveling disc.

4. The quality control device for cast-in-place floor slabs without formwork removal according to claim 1 is characterized in that: The connecting piece is a self-tapping screw.

5. The quality control device for cast-in-place floor slabs without formwork removal according to claim 4 is characterized in that: A threaded hole is provided at the bottom of the floor control device, and the self-tapping screw can be screwed into the threaded hole.

6. The quality control device for cast-in-place floor slabs without formwork removal according to claim 1 is characterized in that: The floor control device includes a support, and an upper support hook and a lower support hook are arranged on one side of the support, the upper support hook is located above the lower support hook, the upper steel bar installation groove is formed between the upper support hook and the support, and the lower steel bar installation groove is formed between the lower support hook and the support.

7. The quality control device for cast-in-place floor slabs without formwork removal according to claim 6 is characterized in that: A water stop plate is arranged on the support.

8. The quality control device for cast-in-place floor slabs without formwork removal according to claim 7 is characterized in that: The water stop plate is located between the upper support hook and the lower support hook.

9. The quality control device for cast-in-place floor slabs without formwork removal according to claim 7 is characterized in that: The water stop plate and the upper support hook are located on different sides of the support.

10. The quality control device for cast-in-place floor slabs without formwork removal according to any one of claims 6 to 9, characterized in that: A top plate is arranged on the top of the support, and the top plate is used as a reference for the top surface elevation of the cast-in-place concrete.