Reinforcement cage positioning device with anti-floating cage
By using a rebar cage positioning device with anti-floating cage in bridge engineering, and utilizing a combination of a construction platform and a limiting rod, the problem of rebar cage floating during concrete pouring was solved, achieving stable positioning of the rebar cage and ensuring construction quality and pile design requirements.
Patent Information
- Application Number
- CN202520000412.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-01-02
AI Technical Summary
In bridge construction, the steel reinforcement cage is prone to floating during concrete pouring, which causes the cage to change position and affects the uniformity of reinforcement in the pile body and the stability of the concrete.
A rebar cage positioning device with anti-floating cage is adopted, including a construction platform, positioning plate and limiting rod. The end of the limiting rod abuts against the stirrup. The self-weight of the construction platform and the fixing structure of the limiting rod prevent the rebar cage from floating. The device is combined with adjustable positioning groove and installation groove to adapt to rebar cages of different diameters. Y-type clamps are used to prevent loosening.
This effectively prevents the reinforcing cage from floating during concrete pouring, ensures the stability of the reinforcing cage position, and improves construction quality and the collaborative design capabilities of the pile body.
Smart Images

Figure CN223633940U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rebar cage positioning technology, and in particular to a rebar cage positioning device with an anti-floating cage. Background Technology
[0002] In bridge and other engineering construction, the phenomenon of steel reinforcement cages floating may occur during concrete pouring. This mainly occurs during the construction of cast-in-place piles, where the steel reinforcement cage needs to be accurately placed inside the pile hole and ensure its stability during concrete pouring. The main causes of floating include: excessively rapid concrete pouring speed, where the upward impact force causes the steel reinforcement cage to float; inadequate positioning of the steel reinforcement cage, making it prone to movement under the buoyancy of the concrete; and incomplete removal of sediment from the bottom of the hole, where the rising concrete carries the sediment, creating an upward buoyancy force on the steel reinforcement cage, thus leading to floating.
[0003] The reinforcing cage is the skeleton structure of the pile. When cage floating occurs, the position of the reinforcing cage changes and is no longer in the position required by the design. This leads to uneven reinforcement in the pile, and some areas of the concrete lose sufficient reinforcement support. When the pile is subjected to vertical and horizontal loads, the originally designed cooperative working mechanism of the reinforced concrete is disrupted. Therefore, to address the above phenomenon, a reinforcing cage positioning device with anti-floating feature is proposed to meet the needs of practical use. Utility Model Content
[0004] This invention provides a rebar cage positioning device with anti-floating cage, which solves the technical problem of floating cage phenomenon during the current rebar cage pouring process.
[0005] To solve the above-mentioned technical problems, this utility model provides a rebar cage positioning device with anti-floating cage, including a construction platform, a central groove in the middle of the construction platform, a positioning plate on the inner wall of the central groove, a limiting rod on the side of the positioning plate, one end of the limiting rod abutting the main reinforcement of the rebar cage body, and a lifting rod on the side of the construction platform.
[0006] In some embodiments, the number of positioning pieces is four, and the four positioning pieces are evenly arrayed on the inner wall of the construction platform.
[0007] In some embodiments, the side of the positioning piece has two parallel positioning grooves, and one end of the limiting rod has an installation groove. The positioning piece and the limiting rod are fixed by two bolts passing through the positioning groove and the installation groove, respectively.
[0008] In some embodiments, one end of the limiting rod is provided with a Y-shaped locking head.
[0009] In some embodiments, the construction platform comprises a first channel steel plate, a second channel steel plate, and an angle piece, the number of the second channel steel plates is eight, the eight second channel steel plates are fixed by welding to form an octagon, the number of the first channel steel plates is four, the four first channel steel plates are fixed by welding to form a quadrilateral, the first channel steel plates are welded on the outer side of the second channel steel plates, and the angle piece is welded above and below the four corners of the first channel steel plates.
[0010] In some embodiments, the positioning piece is connected to the inner wall of the second channel steel plate by welding, and the hanging rib is connected to the outer side of the first channel steel plate by welding.
[0011] Compared with the related art, the steel reinforcement cage positioning device with the anti-floating cage has the following beneficial effects:
[0012] The steel reinforcement cage positioning device with the anti-floating cage provided by the utility model has the advantages that the one end of the limiting rod is supported by the self weight of the construction platform, the other end of the limiting rod abuts against the stirrup, the steel reinforcement cage body is limited, the phenomenon of the steel reinforcement cage body floating up in the concrete pouring process is avoided, and the construction quality is ensured; the two positioning grooves and the mounting groove are matched, the limiting rod can be installed at different angles, a plurality of diameters of steel reinforcement cages are adapted, and it is convenient to adjust the mounting position and angle of the limiting rod on the positioning piece according to the position of the stirrup; the Y-shaped clamp is convenient for the limiting rod to abut against the stirrup, and the phenomenon of loosening is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a whole structure schematic view of the utility model;
[0014] Figure 2 It is a construction platform cross section structure schematic view of the utility model;
[0015] Figure 3 It is a construction platform structure schematic view of the utility model.
[0016] Marked numbers in the figure: 1, construction platform; 2, middle groove; 3, positioning piece; 4, limiting rod; 5, hanging rib; 6, bolt; 11, first channel steel plate; 12, second channel steel plate; 13, angle piece; 31, positioning groove; 41, mounting groove; 42, Y-shaped clamp; 100, steel reinforcement cage body; 101, main rib; 102, stirrup. DETAILED DESCRIPTION
[0017] Embodiment one
[0018] The embodiment provides a steel reinforcement cage positioning device with an anti-floating cage, as shown in Figures 1-2As shown, this utility model includes a construction platform 1, a central groove 2 in the middle of the construction platform 1, a positioning plate 3 on the inner wall of the central groove 2, a limiting rod 4 on the side of the positioning plate 3, one end of the limiting rod 4 abutting the main reinforcement 101 of the steel cage body 100, and a lifting rod 5 on the side of the construction platform 1.
[0019] In this embodiment, the cylindrical steel cage body 100 is composed of main bars 101 and stirrups 102. One end of the limiting rod 4 is supported by the self-weight of the construction platform 1, and the other end of the limiting rod 4 abuts against the stirrups 102 to restrict the steel cage body 100, thereby preventing the steel cage body 100 from floating during the concrete pouring process and ensuring construction quality.
[0020] Example 2
[0021] Based on Example 1, such as Figure 1 As shown, in this embodiment, there are four positioning pieces 3, which are evenly arrayed on the inner wall of the construction platform 1.
[0022] In this embodiment, by setting four positioning pieces 3, which, together with four limiting rods 4, abut against the stirrups 102, the accuracy and stability of positioning are increased.
[0023] Example 3
[0024] Based on Example 1, such as Figure 2 As shown, the positioning piece 3 in this embodiment has two parallel positioning grooves 31 on its side, and the limiting rod 4 has an installation groove 41 on one side. The positioning piece 3 and the limiting rod 4 are fixed by two bolts 6 passing through the positioning grooves 31 and the installation grooves 41 respectively.
[0025] In this embodiment, the two positioning slots 31 and the installation slot 41 are designed to cooperate, and the limiting rod 4 can be installed at different angles to adapt to steel cages of various diameters. It is also convenient to adjust the installation position and angle of the limiting rod 4 on the positioning piece 3 according to the position of the stirrup 102.
[0026] Example 4
[0027] Based on Example 1, such as Figure 2 As shown, one end of the limiting rod 4 in this embodiment is provided with a Y-shaped locking head 42.
[0028] In this embodiment, the Y-shaped clamp 42 facilitates the limiting rod 4 to hold the stirrup 102 in place, preventing it from loosening.
[0029] Example 5
[0030] Based on Example 1, such as Figure 3As shown, the construction platform 1 of the embodiment includes a first channel steel plate 11, eight second channel steel plates 12, and corner pieces 13. The eight second channel steel plates 12 are fixed by welding to form an octagon. The four first channel steel plates 11 are fixed by welding to form a quadrilateral. The first channel steel plates 11 are welded to the outer side of the second channel steel plates 12. The corner pieces 13 are welded to the upper and lower sides of the four corners of the first channel steel plates 11.
[0031] In the embodiment, the construction platform 1 is further disclosed. The first channel steel plate 11 and the second channel steel plate 12 are both 25 cm high channel steel, which has strong mechanical properties and a certain weight, thereby ensuring the stability of the construction platform 1.
[0032] Embodiment Six
[0033] Based on Embodiment Five, as shown, Figure 3 The positioning piece 3 of the embodiment is connected to the inner wall of the second channel steel plate 12 by welding, and the hanging rib 5 is connected to the outer side of the first channel steel plate 11 by welding.
[0034] In the embodiment, the hanging rib 5 can facilitate the movement of the positioning device by using hoisting equipment.
[0035] Working principle: One end of the construction platform 1 is supported by the self-weight of the limiting rod 4, and the other end of the limiting rod 4 is against the stirrup 102, thereby limiting the steel reinforcement cage body 100 and avoiding the phenomenon of the steel reinforcement cage body 100 floating up during the concrete pouring process, and ensuring the construction quality. The two positioning grooves 31 and the installation groove 41 are matched, the limiting rod 4 can be installed at different angles, and it is suitable for steel reinforcement cages of various diameters, and it is also convenient to adjust the installation position and angle of the limiting rod 4 on the positioning piece 3 according to the position of the stirrup 102. Through the Y-shaped clamp 42, the limiting rod 4 can be conveniently against the stirrup 102, thereby avoiding the phenomenon of loosening.
Claims
1. A reinforcement cage positioning device with anti-floating cage, characterised in that: The utility model provides construction platform, the middle part of construction platform is equipped with middle groove, the inner wall of middle groove is equipped with positioning sheet, the side of positioning sheet is equipped with limiting rod, the one end of limiting rod is resisted to the main reinforcement of reinforcement cage body, the side of construction platform is equipped with hangs the muscle.
2. A reinforcement cage positioning device with anti-floating cage as claimed in claim 1, characterized in that, The number of positioning sheets is four, and the four positioning sheets are uniformly arrayed on the inner wall of the construction platform.
3. A reinforcement cage positioning device with anti-floating cage as claimed in claim 1, characterized in that, Two mutually parallel positioning grooves are formed on the side of the positioning sheet, an installation groove is formed on the side of one end of the limiting rod, and the positioning sheet and the limiting rod are fixed by two bolts penetrating through the positioning groove and the installation groove, respectively.
4. A reinforcement cage positioning device with anti-floating cage as claimed in claim 1, characterized in that, One end of the limiting rod is provided with a Y-shaped clamp.
5. A reinforcement cage positioning device with anti-floating cage as claimed in claim 1, wherein, The construction platform comprises first channel steel plates, second channel steel plates and corner sheets. The number of the second channel steel plates is eight, the eight second channel steel plates are fixed by being welded to form an octagon, the number of the first channel steel plates is four, the four first channel steel plates are fixed by being welded to form a quadrilateral, the first channel steel plates are welded to the outer side of the second channel steel plates, and the corner sheets are welded above and below the four corners of the first channel steel plates.
6. A reinforcement cage positioning device with anti-float cage as claimed in claim 5, wherein, The positioning sheets are connected to the inner wall of the second channel steel plates by welding, and the hanging bars are connected to the outer side of the first channel steel plates by welding.