Auxiliary tool suitable for positioning and installing vertical reinforcing steel bars of circular vertical shaft
By designing a sliding connection between the curved back plate and the card holder, a fixed structure, and spring clamping, the problem of difficulty in adjusting the installation spacing of vertical steel bars caused by the lack of adjustability of the positioning tool was solved, thus improving construction efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWERCHINA HUADONG ENG CORP LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-17
AI Technical Summary
Existing positioning tools lack adjustability and are difficult to adapt to construction errors, making it difficult to adjust the installation spacing of vertical reinforcing bars and affecting construction efficiency.
A positioning and installation auxiliary tool including an arc-shaped back plate and an arc-shaped clamping seat was designed. The arc-shaped clamping seat is connected to the slide groove by a slider and is equipped with fixing bolts and knobs for adjustment. The clamping part uses spring clips to fix the vertical main ribs. The scale lines are used for precise positioning, and the rotating shaft and limit plate ensure stability.
The adjustable arc-shaped bracket accommodates construction errors, effectively adjusts the installation spacing of vertical reinforcing bars, and improves construction efficiency and precision.
Smart Images

Figure CN224134235U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an auxiliary tool for positioning and installing vertical reinforcing bars in a circular shaft, belonging to the field of building construction technology. Background Technology
[0002] In the construction of a circular shaft, the installation of several vertical reinforcing bars requires the main reinforcing bars of the shaft to be installed in advance to determine the curvature and direction of the vertical reinforcing bars. Then, several positioning tools are arranged along the curvature determined by the main reinforcing bars of the shaft to position the vertical reinforcing bars. Finally, the vertical reinforcing bars are inserted into the shaft along the positioning tools, thus completing the installation of the reinforcing bars in the shaft.
[0003] However, existing positioning tools lack adjustability and are difficult to adapt to construction errors, making it difficult to adjust the installation spacing of vertical reinforcing bars and affecting construction efficiency.
[0004] Therefore, a new solution is needed to address this problem. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide an auxiliary tool for positioning and installing vertical steel bars in a circular shaft. It solves the problem that the positioning tool in the prior art lacks adjustability and is difficult to adapt to construction errors, which makes it difficult to adjust the installation spacing of vertical steel bars and affects construction efficiency.
[0006] The technical problem to be solved by this utility model is achieved by the following technical solution: an auxiliary tool for positioning and installing vertical reinforcing bars in a circular shaft, comprising:
[0007] Curved back panel;
[0008] An arc-shaped mounting bracket is slidably connected to an arc-shaped back plate and has a groove on one side for inserting vertical reinforcing bars;
[0009] The arc-shaped back plate is provided with several clamping components for connecting with the vertical main ribs, and the arc-shaped card seat is provided with a fixing structure for connecting with the arc-shaped back plate to fix the position of the arc-shaped card seat.
[0010] By adopting the above technical solution, the arc-shaped bracket of this application is adjustable, which can effectively adapt to construction errors, effectively adjust the installation spacing of vertical steel bars, and improve construction efficiency.
[0011] The present invention is further configured such that: a groove is provided on the arc-shaped back plate along the arc direction, and a slider for engaging the groove is provided on one side of the arc-shaped card seat.
[0012] By adopting the above technical solution, the sliding connection of the arc-shaped card holder is realized by the slider sliding in the groove.
[0013] The present invention is further configured such that: the fixing structure includes a fixing bolt screwed onto the slider, and a pressing block is provided on the side of the fixing bolt away from the slider, and a knob is provided on the pressing block.
[0014] By adopting the above technical solution, after the arc-shaped bracket is moved to a specific position, the fixing bolts are tightened so that the pressure block can be tightly pressed against the back of the arc-shaped back plate. The friction between the pressure block and the arc-shaped back plate effectively prevents the arc-shaped bracket from slipping, thus further ensuring the installation accuracy of the arc-shaped bracket. The knob makes it more convenient for workers to tighten the fixing bolts.
[0015] The present invention is further configured such that: the clamping member includes a spring clamp, the spring clamp includes two clamping plates that are hinged to each other, a clamping groove is provided between the opposite surfaces of one end of the two clamping plates, and an elastic element is provided at the hinge of the two clamping plates.
[0016] By adopting the above technical solution, when installing the arc-shaped back plate, the worker can press the other end of the two clamps to open the spring clamp. The elastic element will then be twisted and generate an elastic force, which will allow the vertical main rib to be placed into the clamping groove. After clamping the two clamps onto the pre-installed vertical main rib, the spring clamp can be firmly fixed onto the vertical main rib by the elastic force of the elastic element. The operation is convenient and the connection is stable.
[0017] The present invention is further configured such that: a through hole is provided at the hinge joint of the two clamping plates; a plurality of fixing blocks are provided on the arc-shaped back plate; a fixing groove for the spring clamp to pass through is provided on the fixing block; an insertion hole is provided on the fixing block; and a rotating shaft for engaging the through hole is provided in the insertion hole.
[0018] By adopting the above technical solution, the curved back plate is limited by the pivot being inserted into the through hole, making the curved back plate with multi-point spring clips less prone to shaking, thereby ensuring the installation stability of the curved back plate.
[0019] The present invention is further configured such that a limiting plate is provided at the top of the rotating shaft.
[0020] By adopting the above technical solution, the shaft falling off is effectively prevented.
[0021] The present invention is further configured such that scale lines are provided on the arc-shaped back plate.
[0022] By adopting the above technical solution, when moving the arc-shaped bracket, it can be moved to a specific and accurate position according to the scale line, thereby avoiding manual measurement of the rebar installation spacing, improving the accuracy of rebar installation and increasing the efficiency of moving the arc-shaped bracket.
[0023] The beneficial effects of this utility model are: the arc-shaped bracket of this application is adjustable, thus effectively adapting to construction errors and adjusting the installation spacing of vertical reinforcing bars, thereby improving construction efficiency. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;
[0025] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;
[0026] Figure 3 for Figure 2 Enlarged structural diagram at point A;
[0027] Figure 4 This is a schematic diagram of the spring clip in this utility model;
[0028] Figure 5 This is a schematic diagram of the arc-shaped card holder and the fixing structure in this utility model.
[0029] In the diagram: 1. Arc-shaped back plate; 2. Arc-shaped card holder; 3. Groove; 4. Scale line; 5. Slide groove; 6. Slider; 7. Fixing bolt; 8. Threaded hole; 9. Pressing block; 10. Knob; 11. Spring clip; 12. Clamping plate; 13. Clamping groove; 14. Elastic element; 15. Biting tooth; 16. Through hole; 17. Fixing block; 18. Fixing groove; 19. Insertion hole; 20. Rotating shaft; 21. Limiting plate. Detailed Implementation
[0030] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this utility model, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0031] like Figure 1 and Figure 2 As shown, an auxiliary tool for positioning and installing vertical reinforcing bars in a circular shaft includes:
[0032] The curved back panel 1 is made of 6061 aluminum alloy, and its curvature radius covers the specifications of the vertical shaft. It has a variety of curvature specifications, namely R = 8-15m.
[0033] The arc-shaped bracket 2 is slidably connected to the arc-shaped back plate 1 and has a groove 3 on one side for inserting vertical steel bars;
[0034] The arc-shaped back plate 1 is provided with several clamping parts for connecting with the vertical main ribs, and the arc-shaped card seat 2 is provided with a fixing structure for connecting with the arc-shaped back plate 1 to fix the position of the arc-shaped card seat 2.
[0035] When installing vertical reinforcing bars, the installation of the arc-shaped back plate 1 can be completed by clamping the clamping device onto the pre-installed vertical main reinforcing bar. Then, by moving the arc-shaped bracket 2 on the arc-shaped back plate 1, after determining the specific position, the arc-shaped bracket 2 is fixed by the fixing structure, and the vertical reinforcing bar can be inserted into the groove 3 to complete the accurate installation of the vertical reinforcing bar.
[0036] The above-mentioned design makes the arc-shaped bracket 2 of this application adjustable, thereby effectively adapting to construction errors, effectively adjusting the installation spacing of vertical reinforcing bars, and improving construction efficiency.
[0037] In another example, the curved back panel 1 is modularly designed, allowing for multi-segment splicing to accommodate different perimeters within different shafts.
[0038] like Figure 1 As shown, the curved back plate 1 is provided with scale lines 4, which are laser-engraved and have a minimum graduation of 1mm. This allows the curved bracket 2 to be moved to a specific and accurate position by corresponding to the scale lines 4, thereby avoiding manual measurement of the rebar installation spacing, improving the accuracy of rebar installation and increasing the efficiency of moving the curved bracket 2.
[0039] like Figure 1 and Figure 5 As shown, a groove 5 is formed on the arc-shaped back plate 1 along the arc direction, and a slider 6 is provided on one side of the arc-shaped bracket 2 for engaging with the groove 5. The sliding connection of the arc-shaped bracket 2 is realized by the slider 6 sliding within the groove 5.
[0040] like Figure 5 As shown, the fixing structure includes a fixing bolt 7 screwed onto the slider 6. A threaded hole 8 is provided in the middle of the slider 6. A pressing block 9 for abutting against the back of the arc-shaped back plate 1 is provided on the side of the fixing bolt 7 away from the slider 6. A knob 10 is also provided on the pressing block 9.
[0041] After the arc-shaped bracket 2 is moved to the specific position, the fixing bolt 7 is tightened so that the pressure block 9 can be tightly pressed against the back of the arc-shaped back plate 1. Through the friction between the pressure block 9 and the arc-shaped back plate 1, the arc-shaped bracket 2 is effectively prevented from slipping, thus further ensuring the installation accuracy of the arc-shaped bracket 2.
[0042] The knob 10 makes it easier for staff to tighten the fixing bolt 7.
[0043] like Figure 3 and Figure 4As shown, the clamping component includes a spring clip 11, which is disposed at the beginning, middle, and end of the arc-shaped back plate 1 to form a stable triangular clamping mechanism, and one side of the spring clip 11 extends through a sliding groove 5. The maximum clamping force of the spring clip 11 is ≥50N, and the spring clip 11 is made of 304 stainless steel spring sheet, with an opening angle of 0-60°. Specifically, the spring clip 11 includes two hinged clamping plates 12, with a clamping groove 13 formed between the opposing surfaces at one end of the two clamping plates 12, and an elastic element 14 is provided at the hinge point of the two clamping plates 12. In this embodiment, the elastic element 14 is a torsion spring.
[0044] When installing the curved back plate 1, the operator presses the other end of the two clamping plates 12 to open the spring clamp 11. The elastic element 14 is then twisted under force and generates an elastic force, allowing the vertical main rib to be placed into the clamping groove 13. After clamping the two clamping plates 12 onto the pre-installed vertical main rib, the elastic force of the elastic element 14 firmly fixes the spring clamp 11 onto the vertical main rib, making the operation convenient and the connection stable. One end of the clamping plate 12 has several teeth 15, and since the vertical main rib is often made of threaded steel in existing technology, the teeth 15 clamp the threaded surface of the threaded steel, making it less likely for the spring clamp 11 to slip up and down or left and right, resulting in more stable clamping.
[0045] like Figure 3 and Figure 4 As shown, a through hole 16 is also provided at the hinge of the two clamping plates 12. Several fixing blocks 17 are welded on the arc-shaped back plate 1. Fixing slots 18 for the spring clip 11 to pass through are provided on the fixing blocks 17. Insertion holes 19 are provided on the fixing blocks 17. A rotating shaft 20 for inserting into the through hole 16 and passing through the center of the elastic member 14 is engaged in the insertion hole 19. A limit plate 21 is also provided on the top of the rotating shaft 20.
[0046] When installing the spring clip 11, insert the spring clip 11 into the fixing groove 18 and slide it out of the sliding groove 5. The sliding groove 5 has a large gap, which makes it easy for the spring clip 11 to open and close. After the spring clip 11 is clamped on the vertical main rib, the pivot 20 is then inserted into the insertion hole 19 and the through hole 16, and the limiting plate 21 is abutted against the top of the arc-shaped back plate 1 to complete the installation of the spring clip 11.
[0047] The vertical main rib limits the spring clip 11, making it difficult for the spring clip 11 to slide. The spring clip 11 limits the arc-shaped back plate 1 after passing through the slide groove 5, making it difficult for the arc-shaped back plate 1 to slide up and down. The rotating shaft 20 limits the arc-shaped back plate 1 after being inserted into the through hole 16, making the arc-shaped back plate 1 with multiple spring clips 11 less prone to shaking, thus ensuring the installation stability of the arc-shaped back plate 1.
[0048] The limiting plate 21 effectively prevents the rotating shaft 20 from falling off.
[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An auxiliary tool for positioning and installing vertical reinforcing bars in a circular shaft, characterized in that, include: Arc-shaped backplate (1); The arc-shaped bracket (2) is slidably connected to the arc-shaped back plate (1) and has a groove (3) on one side for inserting vertical steel bars; The arc-shaped back plate (1) is provided with several clamping parts for connecting with the vertical main ribs, and the arc-shaped card seat (2) is provided with a fixing structure for connecting with the arc-shaped back plate (1) to fix the position of the arc-shaped card seat (2).
2. The vertical reinforcement positioning and installation auxiliary tool for a circular shaft according to claim 1, characterized in that: The arc-shaped back plate (1) has a groove (5) along the arc direction, and the arc-shaped card holder (2) has a slider (6) on one side for engaging the groove (5).
3. The vertical reinforcement positioning and installation tool for circular shafts according to claim 2, characterized in that: The fixing structure includes a fixing bolt (7) screwed onto the slider (6), and a pressing block (9) is provided on the side of the fixing bolt (7) away from the slider (6).
4. The vertical reinforcement positioning and installation auxiliary tool for a circular shaft according to claim 3, characterized in that: A knob (10) is provided on the pressing block (9).
5. The vertical reinforcement positioning and installation tool for circular shafts according to claim 2, characterized in that: The clamping member includes a spring clamp (11), which includes two clamping plates (12) that are hinged to each other. A clamping groove (13) is provided between the opposing surfaces at one end of the two clamping plates (12), and an elastic element (14) is provided at the hinge of the two clamping plates (12).
6. A tool for positioning and installing vertical reinforcement in a circular shaft according to claim 5, wherein: The hinge joint of the two clamps (12) is also provided with a through hole (16). The arc-shaped back plate (1) is provided with a number of fixing blocks (17). The fixing blocks (17) are provided with fixing grooves (18) for the spring clip (11) to pass through. The fixing blocks (17) are provided with insertion holes (19). The insertion holes (19) are provided with a rotating shaft (20) for engaging the through hole (16).
7. A tool for positioning and installing vertical reinforcement in a circular shaft according to claim 6, characterized in that: A limiting plate (21) is provided at the top of the rotating shaft (20).
8. A tool for positioning and installing vertical reinforcement in a circular shaft according to claim 1, characterized in that: The arc-shaped back plate (1) is provided with scale lines (4).