Multifunctional reinforcing steel positioning jig frame
By combining a multifunctional rebar positioning frame with a rebar frame and an adjustable positioning device, the problem of poor applicability of existing rebar positioning devices is solved, achieving precise control of rebar tying and improving construction safety, thereby increasing construction efficiency and concrete quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NO 2 ENG CO LTD OF CCCC FIRST HIGHWAY ENG
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-10
AI Technical Summary
Existing rebar positioning devices have poor applicability, low construction efficiency, unstable quality and safety hazards in the construction of municipal integrated pipe corridors, making it difficult to meet the requirements of refined construction.
A multifunctional rebar positioning frame is designed, which uses a combined rebar frame, an adjustable rebar positioner, a leveling device, and a spraying system to achieve precise positioning and efficient binding of rebar, thereby improving construction quality and safety.
It improves the accuracy of rebar tying, ensures the overall stability and verticality of the rebar, reduces construction risks, increases construction efficiency, enhances concrete curing effect, and adapts to modern construction processes.
Smart Images

Figure CN224478724U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of underground integrated pipe corridors and other similar projects, specifically a multi-functional steel bar positioning frame. Background Technology
[0002] In the construction of municipal integrated utility tunnels, the lack of positioning devices has long been a technical problem in rebar tying operations. Current construction techniques generally employ the traditional method of on-site line marking for positioning. This method heavily relies on the experience and judgment of construction personnel, making it difficult to meet design specifications for key parameters such as rebar linearity control, spacing accuracy, and protective layer thickness. While existing technologies also utilize rebar positioning devices, they suffer from the following technical drawbacks: 1. Lack of structural flexibility: Existing positioning jigs employ fixed frame structures with rigid dimensions, suitable only for specific types of rebar components. This makes them difficult to adapt to different specifications of embedded parts and irregularly shaped rebar components, leading to redundant resource allocation and waste. 2. Limited construction efficiency: Due to positioning deviations between the jig and the rebar components, the position of semi-finished rebars must be repeatedly adjusted during construction, increasing the time required for each positioning by more than 30%, significantly impacting the overall construction progress. 3. Poor installation quality stability: Limited by the confined working environment of the pipe gallery construction, traditional welded positioning bars are prone to displacement, and the installation accuracy error of embedded parts can reach ±5mm, resulting in quality defects such as rebar displacement and excessive protective layer thickness after concrete pouring. 4. Significant safety risks: Existing positioning devices generally weigh over 80kg, making them prone to deformation or structural breakage during handling, posing a safety hazard of injuring workers. Furthermore, the low reusability of these devices increases construction costs.
[0003] The aforementioned technical defects severely restrict the standardization and precision of steel reinforcement construction in utility tunnel projects. There is an urgent need to develop a new type of steel reinforcement positioning device that is highly versatile, has high positioning accuracy, is easy to operate, and is safe and reliable, in order to solve the problems of poor applicability, low efficiency, unstable quality, and safety hazards in the existing technology. Utility Model Content
[0004] This utility model provides a multifunctional rebar positioning frame, which can position the rebar, ensure that the rebar installation meets the requirements, and improve the installation quality.
[0005] One technical solution adopted by this utility model is:
[0006] A multifunctional rebar positioning frame includes a frame support, on which a combined rebar frame is provided; two sets of the combined rebar frames are placed between a rebar binding structure and connected by connecting bolts; the combined rebar frames are provided with multiple horizontally spaced adjustable rebar positioners for adjusting the spacing between the rebars to be bound.
[0007] The rebar locator includes a transverse galvanized steel pipe and a positioning clip.
[0008] The positioning clip is a round sleeve with a threaded hole. The positioning clip is sleeved on the transverse galvanized steel pipe. The fastening nut cooperates with the threaded hole on the round sleeve to fix the positioning clip on the transverse galvanized steel pipe. The two ends of the transverse galvanized steel pipe are interference-fitted into the sliders of the inner grooves on both sides of the jig frame.
[0009] The bottom of the tire frame support is equipped with a leveling device for adjusting the relative height of the tire frame support.
[0010] The leveling device includes an adjusting foot with external threads, and is threadedly connected to the bottom of the jig support. A level is also provided on the bottom of the jig support. The leveling operation is simple, allows for relatively precise height adjustment, and can withstand significant weight.
[0011] The combined steel reinforcement frame is composed of multiple square hollow steel pipes. Spray holes are opened on each square hollow steel pipe, and spray heads are installed inside the spray holes. The square hollow steel pipe at the top of the combined steel reinforcement frame is connected to an external water pipe. Water sprayed through the spray holes is atomized into fine droplets, allowing the water mist to evenly cover the surface of the object, increasing the contact area between water and the concrete surface and improving the curing effect.
[0012] The combined steel reinforcement frame is a right-angled trapezoid, and the spray holes and spray heads are arranged on the slope surface of the combined steel reinforcement frame; the spray holes and spray heads include outer spray and inner spray; the water receiving pipe is fixedly connected to the square hollow steel pipe at the top of the slope surface of the combined steel reinforcement frame.
[0013] The composite steel reinforcement frame has multiple horizontal bars installed on its sloping surface, forming a climbing ladder. The climbing ladder assembly is made of galvanized steel pipe and welded to the frame, primarily supporting the overall structure of the frame and capable of withstanding the weight of construction workers and the impact forces during climbing.
[0014] The top surface of the jig support is equipped with a cover plate, and the cover plate is equipped with a safety handle. The safety handle assembly is made of galvanized steel pipe and is mainly used for fixing the safety belt. It can move flexibly on the top surface of the jig for convenient operation and construction.
[0015] The jig support is equipped with a verticality control device, one end of which is fixed to the jig support and is set perpendicular to the ground; its function is to control the verticality of the reinforcing bars below the jig.
[0016] The top plane of the support frame is also fixed with a scale to control the height and spacing of the reinforcing bars above the support frame, and to control the overall flatness of the reinforcing bars.
[0017] Compared with the prior art, the advantages of this utility model device are that it can improve the accuracy of rebar tying. By controlling the spacing of linear and double-row rebars during the tying process through a multi-functional rebar positioner, it can ensure the overall stability and verticality of the rebars, while also helping the rebars to form as a whole and enhancing the integrity of the concrete structure. At the same time, it ensures the safety of construction workers. Its stable structure can reduce the risks of falls from heights and falling objects faced by construction workers during the construction process, and improve work efficiency. It is also equipped with a spraying system, which can improve the curing effect of concrete. The overall structure has the functions of controlling rebar spacing, structural verticality, alignment, and concrete curing, ensuring structural quality, adapting to modern construction processes, and improving overall construction accuracy. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of the multifunctional rebar positioning frame of this utility model.
[0020] Figure 2 for Figure 1 A schematic diagram from another perspective.
[0021] Figure 3 This is a side view of the multifunctional rebar positioning frame of this utility model.
[0022] Figure 4 This is a schematic diagram of the rebar locator of this utility model.
[0023] Reference numerals: 1-Frame support, 2-Rebar locator, 21-Transverse galvanized steel pipe, 22-Positioning clip, 23-Slider, 3-Leveling device, 4-Level, 5-Outer spray, 6-Inner spray, 7-Water pipe, 8-Connecting bolt, 9-Climbing ladder, 10-Scale, 11-Safety handle, 12-Verticality control device, 13-Cover plate Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of this utility model shown in and described with reference to the drawings are merely exemplary, and this utility model is not limited to these embodiments.
[0025] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.
[0026] Furthermore, in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] Example 1
[0028] This embodiment provides a multifunctional rebar positioning jig, such as Figure 1-2 As shown, the multifunctional rebar positioning frame includes: a frame support 1, on which a combined rebar frame is provided; two sets of the combined rebar frames are placed between the bundled rebar structure and connected by connecting bolts 8, which are detachable and used to support the rebar and ensure the overall stability of the rebar.
[0029] The combined steel reinforcement frame is equipped with multiple horizontally spaced adjustable steel reinforcement positioners 2, used to adjust the spacing between the steel reinforcements to be tied. Figure 4 As shown, the adjustable rebar locator 2 includes a transverse galvanized steel pipe 21 and a positioning clip 22. The positioning clip 22 is sleeved on the transverse galvanized steel pipe 21 and is a round sleeve with a threaded hole. The fastening nut cooperates with the threaded hole on the round sleeve to fix the positioning clip 22 on the transverse galvanized steel pipe. It can move up, down, left, and right, serving to position the rebar for binding and adjust the spacing. The two ends of the transverse galvanized steel pipe are interference-fitted into the sliders 23 in the inner grooves on both sides of the jig. Specifically, the rebar assemblies to be bound can be bound between two sets of combined rebar frames. The positioning clip 22 on the rebar locator 2, by adjusting its position, positions the rebar to be bound, ensuring that the binding of the rebar meets the data requirements on the design drawings and reducing deviations caused by manual operation.
[0030] The bottom of the tire frame support 1 is equipped with a leveling device 3 for adjusting the relative height of the tire frame support 1. The leveling device 3 includes an adjusting foot with external threads. The leveling device 3 is threadedly connected to the bottom of the tire frame support 1. By rotating the adjusting foot, it moves up and down in the foot cup or nut, thereby changing the height of the tire frame and achieving the purpose of leveling. A level 4 is also provided on the bottom of the tire frame support. The height of the adjusting foot of the leveling device 3 is adjusted according to the feedback from the level 4 to ensure that the tire frame is level as a whole.
[0031] The combined steel reinforcement frame is composed of multiple square hollow steel pipes. Spray holes are opened on the square hollow steel pipes, and spray heads are installed in the spray holes. The spray heads are made of metal. The square hollow steel pipe at the top of the combined steel reinforcement frame is connected to an external water inlet pipe 7. The external water source enters the steel frame through the water inlet pipe 7 and is sprayed out from the spray heads.
[0032] Further such as Figure 1 , 2 As shown, the combined steel reinforcement frame is a right-angled trapezoid, and the spray holes and spray heads are arranged on the sloping surface of the combined steel reinforcement frame; as shown... Figure 3 As shown, the sprinkler heads on the slope include an outer sprinkler head 5 located on the outer side of the slope and an inner sprinkler slope 6 located on the inner side; the water receiving pipe 7 is fixedly connected to the square hollow steel pipe at the top of the slope of the combined steel frame. When the sprinkler system is started, pressurized water is delivered to the sprinkler head through the water receiving pipe 7, which can atomize the water into fine water droplets, so that the water mist can evenly cover the surface of the object, which can increase the contact area between water and concrete surface and improve the curing effect.
[0033] Multiple horizontal bars are installed on the sloping surface of the combined steel reinforcement frame, forming a climbing ladder 9 on the sloping surface of the combined steel reinforcement frame. For example... Figure 2 As shown, the climbing frame 9 is made of galvanized steel pipe and mainly supports the overall structure of the frame, capable of withstanding the weight of construction workers and the impact force during the climbing process.
[0034] The top surface of the frame support 1 is provided with a cover plate 13, which is detachable. The cover plate is provided with a safety handle 11, which is mainly used for fixing the safety belt. It can move flexibly on the top surface of the frame for convenient operation and construction. The safety handle 11 is made of galvanized steel pipe.
[0035] The jig support 1 is equipped with a verticality control device 12. One end of the verticality control device 12 is fixed to the jig support 1 and is set perpendicular to the ground. Its function is to control the verticality of the steel bars below the jig.
[0036] A scale 10 is also fixed on the top plane of the frame support 1, such as... Figure 3As shown, it is used to control the height and spacing of the reinforcing bars above the frame, and also to control the overall flatness of the reinforcing bars.
[0037] This multi-functional rebar positioning frame, equipped with adjustable positioners, fixes the position of the rebars, improving the accuracy of rebar tying. It controls the linearity of the rebars, the spacing of double-row rebars, the overall stability of the rebars, their overall flatness, and verticality during the tying process. This improves installation accuracy, reduces human error, ensures structural stability, and contributes to the overall forming of the rebars, guaranteeing the integrity and strength of the poured concrete structure to meet requirements. Secondly, it enhances worker safety. The stable structure of the multi-functional rebar positioning frame ensures worker safety during use, reducing risks such as falls from heights and being struck by objects, improving work efficiency, and ensuring overall project progress.
[0038] Meanwhile, the multifunctional rebar positioning frame of this utility model can also improve the curing function of concrete: the multifunctional rebar positioning frame has a spray curing function, which can atomize water into fine water droplets, so that the water mist can evenly cover the surface of the structure, which can increase the contact area between water and concrete surface, improve the curing effect, and enhance the concrete strength and cracks.
[0039] The multifunctional rebar positioning frame of this utility model is designed to meet the requirements of modern construction processes. Some of its designs are adjustable, which improves the reusability rate and enhances construction efficiency, controls rebar spacing, structural verticality, alignment, and concrete curing, thereby ensuring structural quality.
[0040] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A multifunctional rebar positioning jig, characterized in that, Includes a frame support (1), on which a combined steel reinforcement frame is provided; two sets of the combined steel reinforcement frames are placed between the bundled steel reinforcement structure and connected by connecting bolts (8); The combined steel reinforcement frame is equipped with multiple horizontally spaced adjustable steel reinforcement positioners (2) for adjusting the spacing between the steel reinforcements to be tied.
2. The multifunctional rebar positioning jig according to claim 1, characterized in that, The rebar locator (2) includes a transverse galvanized steel pipe (21) and a positioning clip (22).
3. The multifunctional rebar positioning jig according to claim 2, characterized in that, The positioning clip (22) is a round sleeve with a threaded hole. The positioning clip (22) is sleeved on the transverse galvanized steel pipe (21). The fastening nut cooperates with the threaded hole on the round sleeve to fix the positioning clip (22) on the transverse galvanized steel pipe (21). The two ends of the transverse galvanized steel pipe (21) are interference-fitted into the sliders (23) of the inner grooves on both sides of the jig frame.
4. The multifunctional rebar positioning frame according to claim 1, characterized in that, The bottom of the frame support (1) is provided with a leveling device (3) for adjusting the relative height of the frame support.
5. The multifunctional rebar positioning jig according to claim 4, characterized in that, The leveling device (3) includes an adjusting foot with external threads. The leveling device (3) is threaded to the bottom of the frame support (1). A level (4) is also provided on the bottom of the frame support (1).
6. The multifunctional rebar positioning jig according to claim 1, characterized in that, The combined steel reinforcement frame is composed of multiple square hollow steel pipes. Spray holes are opened on the square hollow steel pipes, and spray heads are installed in the spray holes. The square hollow steel pipe at the top of the combined steel reinforcement frame is connected to an external water pipe (7).
7. The multifunctional rebar positioning jig according to claim 6, characterized in that, The combined steel reinforcement frame is a right-angled trapezoid, and the spray holes and spray heads are arranged on the sloping surface of the combined steel reinforcement frame; The water inlet pipe (7) is fixedly connected to the square hollow steel pipe at the top of the slope of the combined steel frame.
8. The multifunctional rebar positioning jig according to claim 7, characterized in that, Multiple horizontal bars are provided on the sloping surface of the combined steel reinforcement frame, and the horizontal bars form a climbing ladder (9) on the sloping surface of the combined steel reinforcement frame.
9. The multifunctional rebar positioning jig according to claim 1, characterized in that, The top surface of the tire frame support (1) is provided with a cover plate (13), and a safety handle (11) is provided on the cover plate (13).
10. The multifunctional rebar positioning jig according to claim 1, characterized in that, The frame support (1) is provided with a verticality control device (12), one end of which is fixed to the frame support (1) and is set perpendicular to the ground; A scale (10) is also fixed on the top plane of the frame support (1).