A reinforced concrete slab thickness control device
Patent Information
- Application Number
- CN202521253167.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-18
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-06-18
AI Technical Summary
[0003]现浇钢筋混凝土板的附加钢筋混凝土楼板保护层厚度难以控制，此外施工时不同位置的现浇混凝土板的厚度有差别，因此需要定制多根长度不一的可调杆备用，无形中提高了施工成本
[0013]本实用新型的有益效果：所述钢筋混凝土板厚度控制装置包括可调杆、混凝土板厚度控制件、钢筋混凝土楼板保护层厚度控制件；所述可调杆顶面设置有手柄，手柄的形状和尺寸便于操作人员握持施力，为插钎操作提供着力点，方便将可调杆插入或拔出；可调杆底面设置有钢筋提拉钩，可调杆杆体外表面的下段位置设置有外螺纹，混凝土板厚度控制件、钢筋混凝土楼板保护层厚度控制件绕螺纹段旋转，在螺纹段范围内调整凝土板厚度控制件、钢筋混凝土楼板保护层厚度控制件的安装位置，从而控制纹段范围内调整凝土板厚度控制件、钢筋混凝土楼板保护层厚度控制件的间距，应对不同混凝土板厚施工场景，可同时进行板面钢筋提拉，实现一杆多用。
Smart Images
Figure CN224849629U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building engineering technology. Specifically, this utility model relates to a device for controlling the thickness of reinforced concrete slabs. Background Technology
[0002] Currently, in building construction, the thickness of floor slabs and the thickness of the concrete cover for reinforced concrete slabs play a crucial role in the safety and durability of building structures. Increasing or decreasing the thickness of floor slabs can lead to increased central deflection and reduced load-bearing capacity, which is one of the main causes of floor slab cracking. As construction projects demand increasingly higher quality standards, controlling the thickness of floor slabs and the thickness of the concrete cover for additional reinforcement has always been a weak point in engineering projects, especially for reinforced concrete floor slabs.
[0003] The thickness of the additional reinforced concrete slab cover for cast-in-place reinforced concrete slabs is difficult to control. In addition, the thickness of the cast-in-place concrete slab varies at different locations during construction. Therefore, it is necessary to customize multiple adjustable rods of different lengths for backup, which increases the construction cost. Summary of the Invention
[0004] To overcome the problems existing in the background technology, this utility model discloses a reinforced concrete slab thickness control device. The reinforced concrete slab thickness control device includes an adjustable rod, a concrete slab thickness control component, and a reinforced concrete floor slab protective layer thickness control component. The top surface of the adjustable rod is provided with a handle. The shape and size of the handle are convenient for the operator to grip and apply force, providing a point of force for the insertion and removal of the adjustable rod. The bottom surface of the adjustable rod is provided with a rebar lifting hook. The lower section of the outer surface of the adjustable rod is provided with an external thread. The concrete slab thickness control component and the reinforced concrete floor slab protective layer thickness control component rotate around the threaded section. The installation position of the concrete slab thickness control component and the reinforced concrete floor slab protective layer thickness control component can be adjusted within the threaded section, thereby controlling the spacing of the concrete slab thickness control component and the reinforced concrete floor slab protective layer thickness control component within the threaded section. This can cope with different concrete slab thickness construction scenarios and can simultaneously lift the rebar on the slab surface, truly achieving multiple uses with one rod.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: The reinforced concrete slab thickness control device is characterized in that it comprises: an adjustable rod, a concrete slab thickness control component, a reinforced concrete floor slab protective layer thickness control component, a reinforcing bar support component, and a concrete formwork; the adjustable rod has a handle on its top surface, and a threaded section is provided on the outer surface of the rod body; the concrete slab thickness control component and the reinforced concrete floor slab protective layer thickness control component are installed around the threaded section; the adjustable rod is inserted into the reinforcing bar support component, and the reinforcing bar support component is installed on the top surface of the concrete formwork.
[0006] Preferably, the handle includes anti-slip protrusions; the anti-slip protrusions are disposed on the outer surface of the handle.
[0007] Preferably, the rod includes a lifting hook, which is located at the bottom of the adjustable rod.
[0008] Preferably, the component includes: a concrete slab thickness control rod and a concrete slab thickness adjustment nut; the concrete slab thickness adjustment nut is welded to the middle section of the concrete slab thickness control rod to form a concrete slab thickness control component.
[0009] Preferably, the following is included: an internal thread of a concrete slab thickness adjusting nut; the internal thread of the concrete slab thickness adjusting nut is provided on the inner surface of the concrete slab thickness adjusting nut.
[0010] As a preferred embodiment, the component includes: a reinforced concrete slab protective layer thickness control rod and a reinforced concrete slab protective layer thickness control nut; the reinforced concrete slab protective layer thickness control nut is welded to the middle section of the reinforced concrete slab protective layer thickness control rod to form a reinforced concrete slab protective layer thickness control component.
[0011] As a preferred embodiment, the nut includes an internal thread for controlling the thickness of the protective layer of the reinforced concrete floor slab; the internal thread of the nut for controlling the thickness of the protective layer of the reinforced concrete floor slab is located on the inner surface of the nut.
[0012] Preferably, the steel reinforcement support includes: beam reinforcement, second support beam, and stirrups. The beam reinforcement and second support beam are constructed using steel bars and pins. The beam reinforcement is installed perpendicular to the second support beam. The top surface of the second support beam is reinforced concrete slab, and the stirrups are placed below the reinforced concrete slab.
[0013] The beneficial effects of this utility model are as follows: The reinforced concrete slab thickness control device includes an adjustable rod, a concrete slab thickness control component, and a reinforced concrete floor slab protective layer thickness control component; the top surface of the adjustable rod is provided with a handle, the shape and size of which facilitates the operator's grip and force application, providing a point of force for the insertion of the rod and making it easy to insert or pull out the adjustable rod; the bottom surface of the adjustable rod is provided with a rebar lifting hook, and the lower section of the outer surface of the adjustable rod is provided with an external thread. The concrete slab thickness control component and the reinforced concrete floor slab protective layer thickness control component rotate around the threaded section, adjusting their installation positions within the threaded section, thereby controlling the spacing of the concrete slab thickness control component and the reinforced concrete floor slab protective layer thickness control component within the threaded section. This allows for simultaneous lifting of the slab rebar in different concrete slab thickness construction scenarios, achieving multiple uses for one rod. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the connection relationship between the present invention and the template; Figure 3 This is a schematic diagram of the adjustable rod. Figure 4 A schematic diagram of the structure of a concrete slab thickness control component; Figure 5 A structural schematic diagram of a component for controlling the thickness of the protective layer of reinforced concrete floor slabs; Figure 6 This is a structural schematic diagram of the steel reinforcement support.
[0015] In the diagram: 1. Adjustable rod; 2. Handle; 3. Lifting hook; 4. Threaded section; 5. Concrete slab thickness control component; 6. Concrete slab thickness adjustment nut; 7. Concrete slab thickness control rod; 8. Reinforced concrete floor slab protective layer thickness control component; 9. Reinforced concrete floor slab protective layer thickness control nut; 10. Concrete slab surface reinforcement; 11. Concrete floor slab; 12. Concrete formwork; 13. Concrete slab thickness adjustment nut internal thread; 14. Reinforced concrete floor slab protective layer thickness control nut internal thread; 15. Reinforcing bar support; 16. Beam reinforcement; 17. Second support beam; 18. Stirrup; 19. Anti-slip protrusion; 20. Detailed Implementation
[0016] To make the above objectives, technical solutions and beneficial effects clearer and more explicit, the present invention will be described in detail below with reference to the accompanying drawings.
[0017] like Figure 1-6 As shown, the reinforced concrete slab thickness control device includes: an adjustable rod 1, a concrete slab thickness control component, a reinforced concrete floor slab 12 protective layer thickness control component 8, and a reinforcing bar support component 16. The top surface of the adjustable rod 1 is provided with a handle 2. The shape and size of the handle 2 are convenient for the operator to grip and apply force, providing a point of force for the insertion operation, and making it easy to insert or pull out the adjustable rod 1. The outer surface of the handle 2 is provided with anti-slip protrusions 20 for easy gripping. The outer surface of the adjustable rod 1 is provided with a threaded section 4. The threaded section 4 is an external thread provided at the lower part of the outer surface of the adjustable rod 1. The concrete slab thickness control component 5 and the reinforced concrete floor slab 12 protective layer thickness control component 8 are installed around the threaded section 4. The concrete slab thickness control component 5 includes a concrete slab thickness adjusting nut 6 and a concrete slab thickness control rod 7. The concrete slab thickness adjusting nut 6 is a sleeve welded to the middle section of the concrete slab thickness control rod 7, and the inner surface of the sleeve is provided with an internal thread 14. The reinforced concrete floor slab 12 protective layer thickness control component 8 includes a reinforced concrete floor slab protective layer thickness control nut 9 and a reinforced concrete floor slab protective layer thickness control rod 10. The reinforced concrete floor slab protective layer thickness control nut 9 is a sleeve welded to the middle section of the reinforced concrete floor slab protective layer thickness control rod 10, and the inner surface of the sleeve is provided with an internal thread 15. When installing the concrete slab thickness control component 5 and the reinforced concrete floor slab 12 protective layer thickness control component 8, the concrete slab thickness adjustment nut 6 is inserted from the bottom of the adjustable rod 1. The concrete slab thickness adjustment nut 6 is threadedly connected to the threaded section 4 of the adjustable rod 1. Then, the reinforced concrete floor slab protective layer thickness control nut 9 is inserted from the bottom of the adjustable rod 1. The reinforced concrete floor slab protective layer thickness control nut 9 is threadedly connected to the threaded section 4 of the adjustable rod 1. The reinforced concrete floor slab 12 protective layer thickness control component 8 is installed below the concrete slab thickness control component 5. After the concrete slab thickness control component 5 and the reinforced concrete floor slab 12 protective layer thickness control component 8 are installed, the bottom of the adjustable rod 1 is bent into a steel bar lifting hook 3.
[0018] Before pouring the reinforced concrete slab, a steel reinforcement support 16 needs to be constructed using formwork. The steel reinforcement support 16 is erected on the top surface of the concrete formwork 13. The steel reinforcement support 16 includes beam reinforcement 17 and a second support beam 18. The beam reinforcement 17 and the second support beam 18 are constructed using steel bars and dowels to form a structure as shown in the figure. Figure 5 The steel reinforcement support 16 shown has a concrete slab reinforcement 11 on the top surface of the second support beam 18. Concrete is poured inside the beam reinforcement 17 and the second support beam 18. The stirrup 19 is set below the concrete slab reinforcement 11 for supporting the concrete slab reinforcement 11.
[0019] The adjustable rod 1 is made of 16mm threaded steel. A rebar threading machine is used to thread the lower section of the adjustable rod 1 to form a threaded segment 4. A concrete slab thickness adjusting nut 6 and a reinforced concrete floor slab protective layer thickness control nut 9 are fitted onto the rod body of the adjustable rod 1. The concrete slab thickness adjusting nut 6 and the reinforced concrete floor slab protective layer thickness control nut 9 are 16mm diameter straight threaded sleeves. They are threadedly connected to the threaded segment 4 on the adjustable rod 1. By rotating the concrete slab thickness adjusting nut 6 and the reinforced concrete floor slab protective layer thickness control nut 9, they can move up and down along the threaded segment 4 on the outer surface of the adjustable rod 1. The positions of the concrete slab thickness adjusting nut 6 and the reinforced concrete floor slab protective layer thickness control nut 9 can be adjusted by rotating them from the concrete slab thickness control rod 7 and the reinforced concrete floor slab protective layer thickness control rod 10. A lifting hook is provided at the bottom of the adjustable rod 1; the lifting hook is a bent hook at the bottom end of the adjustable rod 1.
[0020] Before construction, the steel reinforcement support 16 is installed on the top surface of the concrete formwork 13. The installation specifications of the steel reinforcement support 16 are consistent with the specifications of the planned reinforced concrete slab. After installation, the positions of the concrete slab thickness adjusting nut 6 and the reinforced concrete slab protective layer thickness control nut 9 are adjusted according to the thickness requirements of the reinforced concrete slab and the protective layer thickness requirements of the reinforced concrete floor slab 12. After installation, the equipment is verified. During verification, the connection parts of the adjustable rod 1, the concrete slab thickness control nut 5 and the reinforced concrete floor slab protective layer thickness control nut 8 are checked to ensure that the connection is tight and stable, and that the operating handle 2 is in good working order with no signs of loosening or damage. After the reinforcement of the reinforcement support 16 is tied, the thickness of the concrete cover of the reinforced concrete slab 12 is checked using the concrete cover thickness control device. The adjustable rod 1 is perpendicular to the concrete formwork 13. It is observed whether the reinforcement 11 on the concrete slab surface matches the lower surface of the concrete cover thickness control device 8. If not, the lifting hook at the bottom of the adjustable rod 1 is used to lift the reinforcement 11 on the concrete slab surface to lift up the slab reinforcement that has been pressed down or deformed by stepping. The concrete cover thickness control device is then used to recheck whether the thickness of the concrete cover of the reinforced concrete slab 12 meets the requirements. If necessary, the height of the slab reinforcement support 19 needs to be adjusted. The operator holds the operating handle 2 firmly with both hands and aligns the bottom of the adjustable rod 1 with the preset insertion position in the concrete.
[0021] After the reinforcing bars are tied and pass quality inspection, the concrete pouring operation officially begins. During the pouring process, the bottom surface of the concrete slab 12 protective layer thickness control component 8 contacts the bottom surface of the concrete slab 12 protective layer. The bottom surface of the concrete slab 12 protective layer and the top surface of the concrete slab reinforcing bars 11 are on the same horizontal plane. When the adjustable rod 1 is inserted into the concrete, the position of the concrete slab reinforcing bars 11 in the concrete member can be determined by the concrete slab protective layer thickness control rod 10. After the adjustable rod 1 is inserted into the concrete, the lifting hook contacts the top surface of the concrete formwork 13. At this time, the distance between the concrete slab 12 protective layer thickness control component 8 and the concrete formwork 13 is... The thickness of the concrete slab, the distance between the control rod 10 and the concrete slab thickness control component 5, is the thickness of the concrete slab cover 12. During the concrete pouring process, although the concrete slab surface reinforcement 11 is supported by the stirrups 19, it may shift during the pouring process. The operator judges whether the concrete slab surface reinforcement 11 has shifted by whether the control component 8 can fully contact the concrete slab surface reinforcement 11. If the concrete slab reinforcement 11 shifts, it can be adjusted by lifting the adjustable rod 1. The bottom of the adjustable rod 1 is placed... The lifting hook is used to pull and adjust the concrete slab reinforcement 11, adjusting its offset position. The adjustable rod 1 is inserted into the concrete. The concrete slab thickness control component 5 serves as the control reference surface for the concrete slab elevation, and the reinforced concrete floor slab 12 protective layer thickness control component 8 serves as the reference surface for controlling the reinforced concrete floor slab 12 protective layer. Working in conjunction with the concrete slab thickness adjusting nut 6 and the reinforced concrete floor slab protective layer thickness control nut 9, the thickness of the concrete slab and the reinforced concrete floor slab 12 protective layer are controlled, ensuring that the slab thickness after pouring strictly conforms to the design dimensions. Using appropriate force application techniques, personnel steadily and forcefully insert the adjustable rod 1 into the steel reinforcement support 16, continuously applying force until the concrete slab thickness control component 5 is tightly attached to the concrete surface. At this point, the location of the concrete slab thickness control component 5 indicates the thickness of the floor slab at that location, providing a crucial reference for subsequent construction. Construction personnel constantly use the concrete slab thickness control component 5 as the elevation control benchmark to monitor the concrete pouring height in real time. After use, the adjustable rod 1, the concrete slab thickness control component 5, and the reinforced concrete floor slab 12 protective layer thickness control component 8 are promptly washed clean and coated with anti-rust machine oil for future use.
[0022] When the thickness of the protective layer of the reinforced concrete slab 12 is 15mm, the distance between the upper surface of the protective layer thickness control component 8 and the lower surface of the concrete slab elevation control component is set to 15mm. When the thickness of the protective layer of the reinforced concrete slab 12 is 20mm, the distance between the lower surface of the concrete slab thickness control component 5 and the upper surface of the protective layer thickness control component 8 can be adjusted to 20mm. When the adjustable rod 1 is inserted, the thickness of the protective layer of the reinforced concrete slab and the thickness of the concrete slab can be controlled simultaneously. By adjusting the distance between the concrete slab thickness control component 5 and the protective layer thickness control component 8, the control requirements for the thickness of multiple specifications of reinforced concrete slabs and the protective layer of the reinforced concrete slab 12 can be met.
[0023] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.
Claims
1. A device for controlling the thickness of reinforced concrete slabs, characterized in that, include: Adjustable rods, concrete slab thickness control components, reinforced concrete floor slab protective layer thickness control components, steel reinforcement supports, and concrete formwork; The adjustable rod has a handle on its top surface and a threaded section on its outer surface. The concrete slab thickness control component and the reinforced concrete floor slab protective layer thickness control component are installed around the threaded section. The adjustable rod is inserted into a steel reinforcement support component, which is installed on the top surface of the concrete formwork.
2. The reinforced concrete slab thickness control device according to claim 1, characterized in that: include: Anti-slip protrusions; the anti-slip protrusions are provided on the outer surface of the handle.
3. The reinforced concrete slab thickness control device according to claim 1, characterized in that: include: A lifting hook; the lifting hook is located at the bottom of the adjustable rod.
4. The reinforced concrete slab thickness control device according to claim 1, characterized in that: include: A concrete slab thickness control rod and a concrete slab thickness adjustment nut; the concrete slab thickness adjustment nut is welded to the middle section of the concrete slab thickness control rod to form a concrete slab thickness control component.
5. The reinforced concrete slab thickness control device according to claim 4, characterized in that: include: The internal thread of the concrete slab thickness adjusting nut is located on the inner surface of the concrete slab thickness adjusting nut.
6. The reinforced concrete slab thickness control device according to claim 1, characterized in that: include: A reinforced concrete floor slab protective layer thickness control rod and a reinforced concrete floor slab protective layer thickness control nut; the reinforced concrete floor slab protective layer thickness control nut is welded to the middle section of the reinforced concrete floor slab protective layer thickness control rod to form a reinforced concrete floor slab protective layer thickness control component.
7. The reinforced concrete slab thickness control device according to claim 1, characterized in that: include: The internal thread of the nut for controlling the thickness of the protective layer of the reinforced concrete floor slab is located on the inner surface of the nut.
8. The reinforced concrete slab thickness control device according to claim 1, characterized in that: The steel reinforcement support includes: beam reinforcement, second support beam, and stirrups. The beam reinforcement and second support beam are constructed using steel bars and dowels. The beam reinforcement is installed perpendicular to the second support beam. The top surface of the second support beam is reinforced concrete slab. The stirrups are placed below the reinforced concrete slab.