Auxiliary welding device for adjusting distance between main reinforcements of reinforcement cage
By designing an auxiliary welding device for the limiting rod and the limiting plate, the problem of inaccurate spacing of the main reinforcement bars caused by the corrosion of the limiting plate was solved, enabling precise adjustment of the spacing of the main reinforcement bars in the steel cage and accelerating the construction progress.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-06
AI Technical Summary
In existing technologies, the limiting plates and fasteners are prone to corrosion, which leads to inaccurate control of the spacing of the main reinforcement bars in the steel cage, affecting the welding quality of the steel cage and the construction progress.
An auxiliary welding device including a limiting rod and a limiting plate was designed. The limiting plate is fixed by a sliding groove and a locking assembly, and can be adjusted and fixed on the limiting rod. A fixing bolt and spring structure is used to stabilize the position of the limiting plate and ensure accurate positioning of the main rib spacing.
It improved the positioning accuracy of the main reinforcement spacing of the steel cage, simplified the construction operation, and improved construction efficiency and quality.
Smart Images

Figure CN223971124U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of building construction, and in particular to an auxiliary welding device for adjusting the spacing of the main reinforcement bars of a steel cage. Background Technology
[0002] The reinforcing cage is a crucial component in pile foundation construction. As the primary load-bearing and tensile structure, its quality directly impacts the stability and safety of the entire project. Welding of the reinforcing cage is a vital process for connecting the reinforcing bars, and the spacing of the main reinforcement bars becomes a significant indicator affecting the acceptance rate of the reinforcing cage during actual construction. On-site adjustments to the spacing of the main reinforcement bars often slow down the construction progress of the reinforcing cage.
[0003] Existing patent CN220761505U discloses a welding auxiliary tool for reinforcing cages, including a fixing rod, a positioning rod for securing fixed main reinforcing bars, and a limiting component for positioning the main reinforcing bars to be fixed. The first end of the positioning rod is fixed to the fixing rod. The limiting component includes a limiting plate slidably sleeved on the fixing rod and a fastener for locking the limiting plate onto the fixing rod. The fixing rod is a screw rod, and the fastener is a nut screwed onto the fixing rod on the side of the limiting plate opposite to the positioning rod.
[0004] However, the aforementioned existing technologies are prone to corrosion and even stripping of the limiting plates and fasteners due to long working time, resulting in inaccurate control of the spacing of the main reinforcement bars in the steel cage. Utility Model Content
[0005] In order to solve the problems existing in the prior art, the present invention provides an auxiliary welding device for adjusting the spacing of the main reinforcement bars of a steel cage.
[0006] This utility model provides an auxiliary welding device for adjusting the spacing of the main reinforcement bars in a steel cage, which adopts the following technical solution:
[0007] An auxiliary welding device for adjusting the spacing of main reinforcement bars in a steel cage includes a limiting rod and a limiting plate. The limiting rod has a sliding groove, which is arranged along the axis of the limiting rod. The limiting plate has a locking groove on each of its two opposite sidewalls, which engages with the sliding groove. The limiting plate can slide along the sliding groove. The limiting plate is provided with a locking component that can fix the limiting plate to the limiting rod. A positioning rod is fixed to one end of the limiting rod. A semi-circular hole for securing the main reinforcement bars is provided on the side of the limiting plate away from the positioning rod.
[0008] By adopting the above technical solution, the limiting rod and the limiting plate are fixed by the locking assembly. After the locking assembly is released, the limiting plate can slide along the sliding groove, thereby adjusting the position of the limiting plate. After adjustment, the limiting plate is fixed by the locking assembly. Fixing the limiting plate by the locking assembly prevents the limiting plate from sliding freely on the limiting rod, facilitating the positioning of the limiting plate on the main rib and increasing the accuracy of positioning.
[0009] Optionally, the locking assembly includes a fixing bolt, multiple limiting holes on the limiting rod, the multiple limiting holes being evenly arranged along the length of the limiting rod, a fixing hole on the limiting plate, and a nut being threaded onto the fixing bolt after passing through the limiting hole and the fixing hole.
[0010] By adopting the above technical solution, when it is necessary to adjust the position of the limiting plate, unscrew the nut and insert the fixing bolt into the appropriate limiting hole and fixing hole to facilitate the fixing of the limiting plate.
[0011] Optionally, the locking assembly includes a movable block located on one side of the limiting plate. The limiting plate has a receiving cavity on the side near the movable block, and a spring is installed in the receiving cavity. One end of the spring is fixed to the movable block, and the other end of the spring is fixed to the cavity wall away from the movable block. The limiting rod has multiple insertion slots, which are arranged along the axis of the limiting rod. The movable block is fixed with an insertion block that is inserted into the insertion slot.
[0012] By employing the above technical solution, when adjusting the position of the limiting plate on the limiting rod, pulling the movable block stretches the spring, disengaging the insertion block from the insertion slot, and then moving the limiting plate. After the limiting plate moves, releasing the movable block allows the insertion block to insert into the corresponding insertion slot under the spring's tension. This device facilitates the adjustment of the limiting plate's position.
[0013] Optionally, a connecting rod is fixed to the cavity wall away from the movable block, and the connecting rod passes through the movable block.
[0014] By adopting the above technical solution, when the movable block moves away from the limiting plate, it moves along the connecting rod, which increases the stability of the movable block. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;
[0016] Figure 2 This is a schematic diagram of the limiting plate in Embodiment 1 of this utility model;
[0017] Figure 3 This is a schematic diagram of the main reinforcement installation in Embodiment 1 of this utility model;
[0018] Figure 4 This is a schematic diagram of the movable block in Embodiment 2 of this utility model;
[0019] Figure 5 This is a schematic diagram of the spring, connecting rod, and plug block in Embodiment 2 of this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Handle; 2. Limiting hole; 3. Limiting rod; 31. Sliding groove; 32. Insertion groove; 4. Limiting plate; 41. Slot; 42. Receiving cavity; 43. Fixing hole; 5. Locking assembly; 51. Fixing bolt; 52. Movable block; 53. Spring; 54. Connecting rod; 55. Insertion block; 6. Positioning rod; 7. Main rib; 71. Reinforcing rib. Detailed Implementation
[0021] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 The present invention will be described in further detail below.
[0022] Embodiment 1 of this utility model
[0023] Reference Figure 1 , Figure 2 and Figure 3 This utility model discloses an auxiliary welding device for adjusting the spacing of the main bars of a steel cage, including a handle 1 and a limiting rod 3. The limiting rod 3 has multiple limiting holes 2 and a first limiter and a second limiter.
[0024] The limiting rod 3 is a cylindrical rod, and a handle 1 is fixed to one end of the limiting rod 3. The handle 1 is made of rubber. A sliding groove 31 is provided on the limiting rod 3, and the sliding groove 31 is set along the axial direction of the limiting rod 3. The limiting rod 3 is provided with multiple limiting holes 2, and the center distance between two adjacent limiting holes 2 is 1cm. This is mainly to facilitate the adjustment of the limiting plate 4, thereby further adjusting the spacing between the main bars 7 of the reinforcing cage.
[0025] The first limiter is a limit plate 4. Both sides of the limit plate 4 have slots 41 that engage with the sliding groove 31, allowing the limit plate 4 to slide along the sliding groove 31. A semi-circular hole is provided at the upper end of the limit plate 4 for securing the main rib 7. A locking assembly 5 is provided on the limit plate 4. The locking assembly 5 secures the position of the limit plate 4 on the limit rod 3.
[0026] The locking assembly 5 includes a fixing bolt 51. A fixing hole 43 is formed on the limiting plate 4 according to the size of the fixing bolt 51, facilitating the formation of a limiting device between the fixing bolt 51 and the limiting plate 4. The fixing bolt 51 passes through the limiting hole 2 and the fixing hole 43 on the limiting plate 4 and is threaded with a nut. The limiting plate 4 and the fixing bolt 51 can be removed and installed on the limiting hole 2 in the limiting rod 3 according to the requirements between different main reinforcing bars 7, thereby further adjusting the spacing between the main reinforcing bars 7 of the reinforcing cage.
[0027] The second limiter is a positioning rod 6, which is fixed to the limit rod 3 by welding, forming a locking space between it and the first limiter. One of the two adjacent main ribs 7 is located on the side of the positioning rod 6 away from the limit plate 4, and the other main rib 7 is located on the side of the limit plate 4 away from the positioning rod 6. By locking the main ribs 7 through this locking space, the spacing of the main ribs 7 can be controlled, and the subsequent welding between the main ribs 7 and the reinforcing ribs 71 can be facilitated.
[0028] After the first main reinforcement bar 7 of the steel cage is welded, the positioning rod 6 is clamped onto the first main reinforcement bar 7. The second main reinforcement bar 7 is installed and welded through the clamping space formed between the rod and the limiting plate 4, and so on until all the main reinforcement bars 7 of the steel cage are welded. According to the required spacing of the main reinforcement bars 7, the spacing of the main reinforcement bars 7 of the steel cage is adjusted by adjusting the position of the limiting plate 4.
[0029] This device ensures the construction quality of the steel cage by adjusting the spacing of the main reinforcing bars 7. The device is simple and convenient to operate and can also improve the construction speed of workers.
[0030] Embodiment 2 of this utility model
[0031] Reference Figure 4 and Figure 5 The difference from Embodiment 1 lies in the locking assembly 5. The locking assembly 5 includes a movable block 52 located on one side of the limiting plate 4. The limiting plate 4 has a receiving cavity 42 on the side near the movable block 52. A spring 53 and a connecting rod 54 are disposed within the receiving cavity 42. One end of the connecting rod 54 is fixed to the cavity wall of the receiving cavity 42 away from the movable block 52, and the other end of the connecting rod 54 extends out of the movable block 52. The spring 53 is sleeved with the connecting rod 54 and is fixed between the movable block 52 and the cavity wall of the receiving cavity 42.
[0032] Multiple insertion slots 32 are formed on the outer wall of the limiting rod 3, and the multiple insertion slots 32 are evenly arranged along the axis of the limiting rod 3. An insertion block 55 is fixed on the movable block 52, and the insertion block 55 is inserted into one of the insertion slots 32. When the limiting plate 4 needs to be moved, the movable block 52 is pulled down, the spring 53 is stretched, the insertion block 55 disengages from the insertion slot 32, thereby moving the limiting plate 4. After the limiting plate 4 is moved to the appropriate position, the movable block 52 is released, and under the action of the spring 53, the insertion block 55 is inserted into the insertion slot 32, thereby fixing the position of the limiting plate 4.
[0033] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. An auxiliary welding device for adjusting the spacing between main reinforcement bars of a reinforcement cage, characterized in that: The utility model provides a limit rod (3) and limit board (4), is set with sliding slot (31) on limit rod (3), sliding slot (31) is along the axial direction of limit rod (3) setting, the both opposite side walls of limit board (4) are all set with clamping groove (41), clamping groove (41) is connected with sliding slot (31), limit board (4) can slide along sliding slot (31), limit board (4) is provided with the locking assembly (5) of being able to fix limit board (4) with limit rod (3), one end of limit rod (3) is fixed with the positioning rod (6), the side away from positioning rod (6) of limit board (4) is set with the semicircular hole of the convenience card of main reinforcement (7).
2. The auxiliary welding device for adjusting the spacing between main reinforcement bars of a reinforcement cage according to claim 1, characterized in that: The locking assembly (5) includes a fixing bolt (51), a plurality of limiting holes (2) are formed on the limit rod (3), the plurality of limiting holes (2) are uniformly arranged along the length direction of the limit rod (3), a fixing hole (43) is formed on the limit board (4), and the fixing bolt (51) is threadedly connected with a nut after penetrating through the limiting hole (2) and the fixing hole (43).
3. The auxiliary welding device for adjusting the spacing between main reinforcement bars of a reinforcement cage according to claim 1, characterized in that: The locking assembly (5) includes a movable block (52), the movable block (52) is located on one side of the limit board (4), the limit board (4) is close to the side of the movable block and is provided with a receiving cavity (42), the receiving cavity (42) is provided with a spring (53), one end of the spring (53) is fixed with the movable block (52), the other end of the spring (53) is fixed with the cavity wall of the receiving cavity (42) away from the movable block (52), a plurality of plug-in grooves (32) are formed on the limit rod (3), and the plurality of plug-in grooves (32) are arranged along the axis of the limit rod (3). The movable block (52) is fixed with a plug-in block (55) which is plug-in arranged with the plug-in groove (32).
4. The auxiliary welding device for adjusting the spacing between main reinforcement bars of a reinforcement cage according to claim 3, characterized in that: The cavity wall of the receiving cavity (42) away from the movable block (52) is fixed with a connecting rod (54), and the connecting rod (54) penetrates through the movable block (52).