Plate rib spacing controller
By designing a slab reinforcement spacing controller, the problem of inaccurate reinforcement spacing control in reinforced concrete structures was solved, achieving precise and stable reinforcement spacing control, and improving construction quality and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-31
AI Technical Summary
In current reinforced concrete structure construction, the inaccurate control of rebar spacing leads to a decline in construction quality and potential safety hazards. Existing methods such as the chalk line method and the comb board method have problems such as complicated operation, high material consumption, and easy damage.
Design a slab reinforcement spacing controller, including a main body and a sliding control plate. The control plate has holes for installing reinforcing bars, and the main body has a track to facilitate the precise positioning of the control plate. Combined with nameplate markings, a locking mechanism, and anti-corrosion treatment, the stability and accuracy of the equipment are ensured.
It enables precise control of rebar spacing, simplifies the operation process, saves labor and material costs, improves construction efficiency and safety, and extends the service life of the equipment.
Smart Images
Figure CN224063800U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a slab reinforcement spacing controller. Background Technology
[0002] In today's construction engineering field, whether it's municipal engineering, infrastructure, bridge construction, or building construction, reinforced concrete structures consistently dominate the design phase. This structural form is favored primarily due to the stability of its material properties, the maturity of its construction techniques, and its relatively low cost. After nearly a century of technological evolution and material innovation, concrete products can now be produced in various models that meet specific standards and requirements, taking into account different environmental factors and construction schedules.
[0003] In reinforced concrete structures, the addition of steel bars as the structural skeleton greatly satisfies the structure's various strength requirements. Especially in conventional building construction, commonly used steel bar types include RRB400 and HRB400 series, with a wide diameter range from 6 mm to 32 mm. The introduction of steel bars effectively solves the defect of plain concrete having high compressive strength but insufficient tensile strength, achieving complementary properties between the two materials and jointly forming a robust and durable structural system.
[0004] However, during the construction of reinforced concrete structures, a series of complex procedures need to be executed precisely to ensure the overall load-bearing performance of the structure. These procedures typically include site leveling, laying of the subbase, marking of rebar spacing, installation of bottom and top reinforcement bars, concrete pouring, surface leveling, and curing. Among these, the quality of rebar tying has a decisive impact on the overall performance of the reinforced concrete structure, and the control of rebar spacing is of paramount importance.
[0005] In recent years, during the monitoring of the construction quality of reinforced concrete structures, we have discovered some problems that cannot be ignored. In order to meet deadlines, some projects have simplified certain key procedures in the rebar tying process, such as rebar marking and rebar spacing control. This has resulted in inconsistent rebar spacing on site, significantly exceeding the allowable tolerance range specified in the standards. This problem not only affects the overall performance of the structure but may also pose potential safety hazards.
[0006] To address the challenge of controlling rebar spacing, the commonly used methods in engineering are the chalk line method and the comb plate method. However, both methods have limitations. Specifically, the chalk line method is complex, requires specialized personnel for chalking, and involves long intervals between operations, easily leading to idle labor and hindering smooth on-site construction. The comb plate method requires custom-made comb plates for different rebar spacings, and these plates are prone to wear and tear during use, resulting in significant consumption. With increasing usage time, the rebar control holes on the comb plate gradually deteriorate, making it impossible to accurately locate the rebar spacing on-site, thus losing its intended control function. Utility Model Content
[0007] To overcome the shortcomings of the prior art, this application provides a slab reinforcement spacing controller to solve the problem of inaccurate reinforcement spacing control in the current construction of reinforced concrete structures.
[0008] The technical means adopted by this utility model to solve its technical problem is: a slab reinforcement spacing controller, the improvement of which is that it includes a main body and a plurality of control plates, the plurality of control plates having a plurality of holes opened according to the spacing requirements, the holes being used for installing reinforcing bars; bolt holes are provided at both ends of the main body and the control plates, the control plates being fixed to the main body by bolts and steel plates; a track is provided on the inner wall of the main body, the plurality of control plates being able to slide down the track to the spacing control area.
[0009] The main body in the above technical solution has a nameplate marking area on its side, which is used to indicate the spacing of the concrete slab reinforcement and the thickness of the concrete slab.
[0010] The control board described in the above technical solution is made of aluminum plate with a thickness of at least 3mm, the outer diameter of the hole is not less than 12mm, and the distance between the hole and the lower end of the control board is not less than 40mm.
[0011] The main body described in the above technical solution is also provided with a locking mechanism, which is used to lock the control panel after it is adjusted to the required position.
[0012] The surfaces of the main body and control panel described in the above technical solution are all treated with anti-corrosion measures.
[0013] The main body described in the above technical solution is provided with an adjustable support foot at the bottom. The adjustment range of the support foot is 0-50mm. The bottom of the support foot is provided with an anti-slip pad, which is made of rubber material.
[0014] The beneficial effects of this utility model are:
[0015] This system ensures that all rebar spacing control plates are installed on the same controller. Different control plates can be selected based on the actual spacing requirements. Furthermore, this controller is a standardized production tool with precise control hole spacing, which is not easily affected by rebar wear. At the same time, the controller is simple to use and quick to operate, greatly saving the labor and material costs required for the original comb plate processing and significantly solving various problems existing in the original process. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a slab reinforcement spacing controller shown in an embodiment of the present invention. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.
[0019] like Figure 1 As shown, this utility model provides a slab reinforcement spacing controller, including a main body 1 and a plurality of control plates 2. The plurality of control plates 2 are provided with a plurality of holes 3 according to the spacing requirements. The holes 3 are used to install the reinforcing bars. The main body 1 and the control plates 2 are provided with bolt holes at both ends. The control plates 2 are fixed to the main body 1 by bolts 11 and steel plates 12. The inner wall of the main body 1 is provided with a track 13. The plurality of control plates 2 can slide down the track 13 to the spacing control area.
[0020] In one possible implementation, the control board 2 is made of aluminum plate with a thickness of at least 3 mm, the outer diameter of the hole 3 is not less than 12 mm, and the distance between the hole 3 and the lower end of the control board 2 is not less than 40 mm.
[0021] Optionally, the outer diameter of the hole 3 is uniformly 15mm according to the commonly used size of the slab reinforcement, so as to accommodate 6mm, 8mm, 10mm and 12mm steel bars, so as to meet the size requirements of the slab reinforcement to the greatest extent.
[0022] Meanwhile, the distance between the hole 3 and the lower end of the control board 2 is not less than 40mm. Based on the conventional bottom reinforcement protective layer thickness of 25mm, and considering that the lower edge of the controller should be flush with the lower edge of the template, after removing the template thickness of 15mm, the entire distance needs to be greater than 25mm + 15mm = 40mm.
[0023] In one possible implementation, the main body 1 has a nameplate marking area 4 on its side, which is used to indicate the spacing of the concrete slab reinforcement and the thickness of the concrete slab.
[0024] Specifically, based on the common concrete slab reinforcement spacing in conventional building construction projects, the spacing is divided into 100mm, 150mm, and 200mm; based on the common concrete slab thickness, the spacing is divided into 120mm, 150mm, 200mm, 250mm, 300mm, 350mm, and 500mm. Similar to the first control board 2 with a slab thickness of 120mm and a reinforcement spacing of 100mm, this application can produce different unit reinforcement spacing control boards according to different reinforcement spacing and concrete slab thicknesses, and all different control boards are installed on the same controller body as shown in the figure, which facilitates the selection of different control boards according to different reinforcement spacing and slab thicknesses.
[0025] Furthermore, after determining the control plate to be used based on the rebar spacing and plate thickness, the bolts 11 at both ends of the controller are completely loosened and removed. The single control plate will then slide down the inner track 13 of the main body 1 to the spacing control area. Due to the existence of the track 13, the single control plate 2 will not tip over during use. The existence of the track 13 also allows the plate to be lifted to the upper preparation area when the rebar spacing no longer needs to be controlled, and the bolts 1 can be tightened for the next use.
[0026] In one possible implementation, the main body 1 is further provided with a locking mechanism. Optionally, the locking mechanism may include a locking bolt provided on the main body and a locking hole that cooperates with the control plate, for locking the control plate after it is adjusted to the desired position.
[0027] The locking mechanism enhances the overall structural stability of the rib spacing controller. The control panel will not shake or slip unexpectedly during use, allowing the equipment to operate more reliably, reducing construction problems and safety hazards caused by equipment instability, and extending the equipment's service life.
[0028] In one possible implementation, both the surfaces of the main body 1 and the control panel 2 are treated with anti-corrosion measures.
[0029] Optionally, the anti-corrosion treatment is electrostatic spraying of anti-corrosion paint, which is a combination of epoxy zinc-rich primer and acrylic polyurethane topcoat. The dry film thickness of the primer is not less than 70 μm, and the dry film thickness of the topcoat is not less than 50 μm. It can effectively resist salt spray corrosion, and the salt spray test time is not less than 1000 hours.
[0030] Before electrostatic spraying of anti-corrosion paint, the main body and control board undergo surface pretreatment, including degreasing, rust removal, and phosphating. The phosphating film thickness is 2-5 μm to enhance the adhesion between the anti-corrosion paint and the substrate.
[0031] In one possible implementation, the bottom of the main body 1 is provided with an adjustable support foot, the adjustment range of which is 0-50mm, and the bottom of the support foot is provided with an anti-slip pad, which is made of rubber material.
[0032] For example, in renovation projects of old buildings, the original ground may have become uneven due to long-term use. The adjustable support feet can keep the main structure level, ensuring the normal operation of the slab reinforcement spacing controller and guaranteeing the accuracy of slab reinforcement spacing control. Meanwhile, in the construction of multi-story buildings, the formwork erection height may vary slightly between floors. Adjustable support feet can flexibly adjust to adapt to these height changes, allowing the slab reinforcement spacing controller to be stably placed and function on different floors, improving the equipment's versatility and practicality.
[0033] The anti-slip mat is made of rubber, which has excellent friction. During construction, especially in situations with frequent personnel movement and material handling, it effectively prevents the reinforcement spacing controller from slipping or shifting due to external forces. For example, during concrete pouring, the vibration generated by the vibrator may cause unsecured equipment to move, while the anti-slip mat ensures that the equipment remains in the set position, guaranteeing the accuracy of the reinforcement spacing and thus ensuring the quality of the concrete structure.
[0034] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. A slab reinforcement spacing controller characterized by, The utility model discloses a concrete slab spacing control device, which comprises a main body and a plurality of control plates, a plurality of holes are formed on the control plates according to spacing requirements, the holes are used for mounting steel bars, bolt holes are arranged at both ends of the main body and the control plates, the control plates are fixed on the main body through bolts and steel plates, a track is arranged on the inner wall of the main body, and the control plates can slide along the track to a spacing control area.
2. A stud spacing controller according to claim 1, wherein A nameplate identification area is arranged on the side of the main body, and the nameplate identification area is used for indicating the spacing of the steel bars and the thickness of the concrete slab.
3. A stud spacing controller according to claim 1, wherein The control plates are made of aluminum plates with a thickness of at least 3 mm, the outer diameter of the holes is not less than 12 mm, and the distance between the holes and the lower end of the control plates is not less than 40 mm.
4. A stud spacing controller according to claim 1, wherein A locking mechanism is further arranged on the main body, which is used for locking the control plates after the control plates are adjusted to the required positions.
5. A stud spacing controller according to claim 1, wherein The surfaces of the main body and the control plates are subjected to corrosion protection treatment.
6. A stud spacing controller according to claim 1, wherein Adjustable supporting feet are arranged at the bottom of the main body, the adjustment range of the supporting feet is 0-50 mm, and antiskid pads made of rubber are arranged at the bottom of the supporting feet.