A grounding electrode bridging steel bar bending device

Abstract

This utility model relates to a grounding electrode bridging rebar bending device, specifically within the field of rebar bending technology. It solves the technical problem of poor rebar connection caused by the precision defects of manual bending. The device includes a support frame, with a support shaft fixedly connected to one side of the top. A rotating sleeve is rotatably connected to the support shaft, and a pressure arm is fixedly connected to the bottom of the rotating sleeve. External driven stops and external active stops are provided on both sides of the support frame, with a pressure rod between them. Two internal driven stops are fixedly connected to the bottom of the inner wall of the support frame, and an internal active stop is provided inside the support frame. This utility model provides a stable and controllable arc bending operation for the placed bridging rebar, facilitating subsequent welding processes and effectively improving the quality of the finished product. By effectively limiting the bridging rebar during the bending process, the accuracy of the bending angle and arc dimensions is ensured.

Description

Technical Field

[0001] This utility model relates to the field of steel bar bending technology, specifically a grounding electrode bridging steel bar bending device. Background Technology

[0002] In building construction, the main steel reinforcement binding is a key process in building engineering. It refers to the construction process in which, during the main structure construction stage of a building, the pre-formed steel bars are tied and fixed manually or mechanically with wire according to the design drawings to form a stable load-bearing skeleton with the designed shape and size.

[0003] To enable the column reinforcement to conduct electricity and serve as lightning protection down conductors, special electrical connection treatment is required for the main column reinforcement designated as down conductors, based on the conventional structural binding. The down conductor and the ground beam reinforcement serving as the grounding body must be bridging with ≥12mm round steel, and then welded on both sides, with a lap length not less than 6D of the round steel. The two ≥16mm steel bars serving as down conductors in the column must be bridging with 12mm round steel. The joints of the steel bars must be lap-welded, and bridging wires must be added at the intersections of the steel bars, welded on both sides. Therefore, when welding the bridging, the steel bars used for the bridging need to be bent.

[0004] Currently, when bending cross-joint reinforcing bars, workers typically bend the bars manually or with makeshift tools. There is no dedicated cross-joint bending device. When bending cross-joint reinforcing bars manually, irregular slight bending of the reinforcing bars is likely to occur, making it difficult for the cross-joint reinforcing bars to fit tightly with the main column reinforcement, which affects the subsequent welding quality and construction progress.

[0005] Furthermore, the inconsistent angles and varying dimensions caused by manual bending not only affect the appearance and installation accuracy of the components, but also increase resistance due to poor contact, ultimately weakening the overall conductivity of the steel reinforcement system.

[0006] Based on this, the present invention provides a grounding electrode bridging rebar bending device to solve the above problems. Utility Model Content

[0007] In view of the above situation and to overcome the defects of the prior art, this utility model provides a grounding electrode bridging rebar bending device. This utility model has a novel structure and ingenious design, and effectively solves the technical problem of poor connection of bridging rebar caused by the precision defects of manual bending.

[0008] A grounding electrode bridging rebar bending device includes a support frame. A support shaft is fixedly connected to one side of the top of the support frame, and a rotating sleeve is rotatably connected to the support shaft. A pressure arm is fixedly connected to the bottom of the rotating sleeve. External driven stops and external active stops are provided on both sides of the support frame. The two external driven stops respectively cooperate with the two external active stops. A pressure rod is provided between the external driven stops and the external active stops. Two internal driven stops are fixedly connected to the bottom of the inner wall of the support frame. The pressure arm cooperates with the two internal driven stops. An internal active stop is provided inside the support frame, and the two internal driven stops cooperate with the internal active stops.

[0009] Preferably, a sliding frame is fixedly connected to both sides of the support frame, and a push plate is slidably connected to each of the two sliding frames. The two outer active stop rods are respectively fixedly connected to the side of the two push plates near the outer driven stop rod.

[0010] Preferably, a support base is fixedly connected to both sides of the support frame, a threaded cylinder is fixedly connected to each of the two support bases, a screw is threadedly connected to each of the two threaded cylinders, one end of each screw is respectively engaged with one side of the two push plates, and a screwing frame is fixedly connected to the other end of each screw.

[0011] Preferably, a left support rod is fixedly connected to one side of each of the two external driven stops, and a right support rod is fixedly connected to one side of each of the two external driving stops, with the two left support rods respectively cooperating with the two right support rods.

[0012] Preferably, each of the two left support rods is fixedly connected to a left sliding sleeve by a fixing bolt, and the bottom of each of the two left sliding sleeves is fixedly connected to a limit sleeve. Each of the two right support rods is fixedly connected to a right sliding sleeve by a fixing bolt, and the bottom of each of the two right sliding sleeves is fixedly connected to a connecting rod. One end of each of the two pressure rods is fixedly connected to one side of the two connecting rods, and the two pressure rods are slidably connected to the two limit sleeves. The other end of each of the two pressure rods is fixedly connected to a baffle.

[0013] Preferably, a fixed seat is fixedly connected to the bottom of the inner wall of the support frame, a rotating frame is rotatably connected to the fixed seat, and the inner active stop is fixedly connected to the top side of the rotating frame.

[0014] Preferably, two limiting plates are fixedly connected to the support shaft, and the two limiting plates are respectively located on both sides of the rotating sleeve. A handle is fixedly connected to the other end of the pressure arm, and pads are fixedly connected to both sides of the top of the support frame.

[0015] The present invention has the following technical effects.

[0016] 1. This utility model, through a support shaft, rotating sleeve, pressure arm, and pressure rod, enables stable and controllable arc bending of placed cross-connected steel bars, resulting in good forming effect and facilitating subsequent welding processes. It effectively improves the quality of processing and forming. By setting external driven stop, external active stop, internal driven stop, and internal active stop, the cross-connected steel bars can be effectively limited during bending, ensuring the accuracy of bending angle and arc dimensions and improving the processing precision of the product.

[0017] 2. This utility model achieves flexible adjustment of the distance between the external driven stop bar and the external active stop bar, and between the internal driven stop bar and the internal active stop bar through the push plate, screw, fixed seat and rotating frame, so as to adapt to the processing of steel bars of different diameters. The working height of the pressure bar can be adjusted through the left sliding sleeve, right sliding sleeve, limiting sleeve and pressure bar, which is convenient for adjustment when used for steel bars of different thicknesses. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the assembly structure of the support shaft, rotating sleeve and pressure arm in this utility model;

[0021] Figure 3 This is a schematic diagram of the assembly structure of the support frame, outer driven stop bar, and inner driven stop bar in this utility model;

[0022] Figure 4 This is a schematic diagram of the assembly structure of the push plate, the outer active stop rod and the right support rod in this utility model;

[0023] Figure 5 This is a schematic diagram of the assembly structure of the left sliding sleeve, right sliding sleeve, pressure rod, and limiting sleeve in this utility model.

[0024] Reference numerals in the attached drawings: 1-Support frame; 2-Spindle; 3-Limiting plate; 4-Rotating sleeve; 5-Pressure arm; 6-Handle; 7-Outer driven stop rod; 8-Sliding frame; 9-Push plate; 10-Outer active stop rod; 11-Support seat; 12-Threaded cylinder; 13-Screw; 14-Tightening frame; 15-Left support rod; 16-Right support rod; 17-Left sliding sleeve; 18-Limiting sleeve; 19-Right sliding sleeve; 20-Connecting rod; 21-Pressure rod; 22-Baffle; 23-Inner driven stop rod; 24-Fixed seat; 25-Rotating frame; 26-Inner active stop rod; 27-Padded block. Detailed Implementation

[0025] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 5 The detailed description of the embodiments will make this clear. All references to the following embodiments are made with reference to the accompanying drawings.

[0026] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0027] This utility model is a grounding electrode bridging rebar bending device. When the existing bridging rebar is bent manually, it is easy to cause irregular deformation of the rebar, making it difficult to fit tightly with the main column reinforcement, which directly affects the subsequent welding quality.

[0028] Poor consistency in bending angles during manual operation not only affects installation accuracy and appearance, but also weakens the overall conductivity of the steel reinforcement system due to poor contact.

[0029] As an example, such as Figure 1 and Figure 2 This utility model includes a support frame 1, which is in the shape of a channel steel. A support shaft 2 is fixedly connected to one side of the top of the support frame 1. A rotating sleeve 4 is rotatably connected to the support shaft 2. The rotating sleeve 4 is cylindrical. A pressure arm 5 is fixedly connected to the bottom of the rotating sleeve 4. External driven stops 7 are fixedly connected to both sides of the support frame 1. External active stops 10 that can be moved are provided on both sides of the support frame 1. The two external driven stops 7 cooperate with the two external active stops 10 respectively. A pressure rod 21 is provided between the external driven stops 7 and the external active stops 10. Two internal driven stops 23 are fixedly connected to the bottom of the inner wall of the support frame 1. The pressure arm 5 cooperates with the two internal driven stops 23. An internal active stop 26 that can be moved is provided inside the support frame 1. The two internal driven stops 23 cooperate with the internal active stops 26.

[0030] In this embodiment, during use, the cross-bracing rebar to be bent is first placed on the support frame 1, with both ends positioned between the outer driven stop 7 and the outer active stop 10, respectively, while the middle section of the rebar is positioned between the inner driven stop 23 and the inner active stop 26. Through the cooperation of the outer driven stop 7, the outer active stop 10, the inner driven stop 23, and the inner active stop 26, precise circumferential positioning of the cross-bracing rebar is achieved, effectively preventing it from sliding or shifting on the support frame 1 during bending. At this time, the cross-bracing rebar is located between the support frame 1 and the pressure bar 21, and the support frame 1 provides stable bottom support for the rebar. The upper pressure bar 21 applies longitudinal constraint to the main body of the steel bar, thereby effectively preventing the ends of the steel bar from warping due to force during the bending process, ensuring that the bending action is smooth and controllable. After preparation, the operator presses down the pressure arm 5, which drives the rotating sleeve 4 to rotate around the support shaft 2, driving the pressure arm 5 to move downward. The pressure arm 5 first enters the gap between the two inner driven stops 23, and then continuously applies vertical pressure to the middle of the cross-connected steel bar. The operator continues to press down the pressure arm 5 at a uniform speed, and transmits the pressure to the predetermined bending point of the steel bar through the pressure arm 5, so that it gradually produces plastic deformation between the support points, and finally forms a curved arc segment.

[0031] As an example, such as Figure 1 and Figure 4 Both sides of the support frame 1 are fixedly connected to sliding frames 8. Both sliding frames 8 have rectangular slots. Both sliding frames 8 are slidably connected to push plates 9. Both push plates 9 are rectangular and their shapes match the slots on the two sliding frames 8. Two external active stop rods 10 are fixedly connected to the side of the two push plates 9 near the external driven stop rods 7.

[0032] As an example, such as Figure 1 Support bases 11 are fixedly connected to both sides of the support frame 1. Threaded cylinders 12 are fixedly connected to both support bases 11. Screws 13 are threadedly connected to both threaded cylinders 12. One end of each screw 13 is engaged with one side of each push plate 9. The other end of each screw 13 is fixedly connected to a screwing frame 14.

[0033] In this embodiment, when bending cross-connected steel bars of different diameters, the two screw rods 13 are driven to rotate in their respective threaded cylinders 12 by simultaneously rotating the screw rods 14 on both sides. The rotation of the screw rods 13 pushes the push plate 9 on one side to move smoothly along the sliding frame 8, thereby driving the outer active stop rod 10 on one side of the two push plates 9 to move closer to the corresponding outer driven stop rod 7, thereby reducing the clamping distance between the outer active stop rod 10 and the outer driven stop rod 7 to meet the bending requirements of steel bars with smaller diameters. When it is necessary to process cross-connected steel bars with larger diameters, the operator can rotate the screw rods 14 in the opposite direction, so that the screw rods 13 rotate in the opposite direction in the threaded cylinder 12, and one end of the screw rod 13 moves away from the push plate 9, releasing the limit on the push plate 9. At this time, the push plate 9 can be manually pushed to move in the opposite direction along the sliding frame 8, driving the outer active stop rod 10 to move away from the outer driven stop rod 7 in the same direction, effectively increasing the clamping distance between the two.

[0034] As an example, such as Figure 1 Each of the two external driven stop levers 7 has a left support rod 15 fixedly connected to one side, and each of the two external active stop levers 10 has a right support rod 16 fixedly connected to one side. The two left support rods 15 cooperate with the two right support rods 16 respectively.

[0035] As an example, such as Figure 1 and Figure 5 Each of the two left support rods 15 is fixedly connected to a left sliding sleeve 17 by a fixing bolt. The bottom of each of the two left sliding sleeves 17 is fixedly connected to a limit sleeve 18. Each of the two right support rods 16 is fixedly connected to a right sliding sleeve 19 by a fixing bolt. The bottom of each of the two right sliding sleeves 19 is fixedly connected to a connecting rod 20. One end of each of the two pressure rods 21 is fixedly connected to one side of the two connecting rods 20. The two pressure rods 21 are slidably connected inside the two limit sleeves 18. The other end of each of the two pressure rods 21 is fixedly connected to a baffle 22.

[0036] In this embodiment, firstly, the fixing bolts installed on the left sliding sleeve 17 and the right sliding sleeve 19 are removed, releasing the locking state between the left sliding sleeve 17 and the outer driven stop 7, and between the right sliding sleeve 19 and the outer active stop 10. Subsequently, the left sliding sleeve 17 is pushed to slide along the left support rod 15, and the right sliding sleeve 19 is pushed along the right support rod 16, thereby driving the pressure rod 21 connected to it to rise or fall as a whole. When the pressure rod 21 falls to a suitable height, so that its bottom gently abuts or approaches the upper surface of the cross-linked steel bar placed on the workbench, the initial pressing and positioning of the steel bar can be achieved, fundamentally avoiding bending. If the ends of the cross-connected steel bars warp due to twisting or bouncing during the process, after adjustment, the fixing bolts are reinstalled on the left sliding sleeve 17 and the right sliding sleeve 19 and tightened, thereby firmly locking the left sliding sleeve 17 onto the outer driven stop 7 and the right sliding sleeve 19 onto the outer active stop 10, ensuring that the pressure rod 21 mechanism remains stable under subsequent bending stress. In addition, when pushing the outer active stop 10 to adjust the distance between it and the outer driven stop 7, the pressure rod 21 at the bottom of the right sliding sleeve 19 slides within the limiting sleeve 18, thereby effectively limiting the cross-connected steel bars.

[0037] As an example, such as Figure 2 A fixed seat 24 is fixedly connected to the bottom of the inner wall of the support frame 1. A rotating frame 25 is rotatably connected to the fixed seat 24. The rotating frame 25 and the fixed seat 24 are connected by a screw. An inner active stop bar 26 is fixedly connected to the top side of the rotating frame 25.

[0038] In this embodiment, by manually turning the rotating frame 25, the rotating frame 25 rotates with the fixed seat 24 at its bottom as the center. The rotation of the rotating frame 25 directly drives the inner active stop rod 26 to rotate synchronously, so that it moves closer to or away from the inner driven stop rod 23 along an arc-shaped trajectory, thereby adjusting the gap between the inner driven stop rod 23 and the inner active stop rod 26, thus providing precise auxiliary positioning and lateral limiting for the bending position of steel bars of different specifications.

[0039] As an example, such as Figure 1 and Figure 2 Two limiting plates 3 are fixedly connected to the support shaft 2. Both limiting plates 3 are circular and are located on both sides of the rotating sleeve 4. A handle 6 is fixedly connected to the other end of the pressure arm 5. Pads 27 are fixedly connected to both sides of the top of the support frame 1.

[0040] In this embodiment, during the bending operation, the operator applies downward pressure to the pressure arm 5, which in turn drives the rotating sleeve 4 to rotate around the support shaft 2. During this process, the limiting plate 3 fixed on the support shaft 2 can precisely limit the rotation angle of the rotating sleeve 4, thereby ensuring that the lower cross-bracing steel bar is bent to the predetermined angle and effectively controlling the processing accuracy. For ease of operation, the operator can apply pressure to the pressure arm 5 through the handle 6. In addition, the pad 27 set on the top of the support frame 1 helps to provide support for the placed cross-bracing steel bar.

[0041] Working principle of this utility model:

[0042] Workers place the steel bar to be bent between the outer driven stop 7 and the outer active stop 10. Then, by turning the frame 14, the screw 13 is driven to rotate inside the threaded cylinder 12, which can drive the push plate 9 and the outer active stop 10 connected to it to move as a whole, so that it moves closer to or away from the outer driven stop 7, thereby realizing flexible adjustment of the distance between the two to accommodate steel bars of different diameters.

[0043] Workers can remove the fixing bolts on the left sliding sleeve 17 and the right sliding sleeve 19, push the left sliding sleeve 17 to slide on the outer driven stop 7, and the right sliding sleeve 19 to slide on the outer active stop 10, so as to drive the pressure rod 21 to rise or fall, thereby forming an effective compression limit on the steel bar during the bending process. After the steel bar is limited by the outer driven stop 7 and the outer active stop 10, workers can push the rotating frame 25 to rotate around the fixed seat 24, causing the inner active stop 26 on it to move closer to or away from the inner driven stop 23, further limiting the bending position of the steel bar. At the same time, the pressure rod 21 presses down on the top of the steel bar, effectively preventing the two ends of the steel bar from lifting up during the bending process.

[0044] After the reinforcement bars are fully positioned, the workers apply pressure to the pressure arm 5 by holding the handle 6. The pressure arm 5 drives the rotating sleeve 4 to rotate along the support shaft 2 until the bottom of the pressure arm 5 contacts the cross-linked reinforcement bars. By continuing to apply pressure, the bending operation of the cross-linked reinforcement bars can be completed under controllable action.

[0045] The present invention has the following technical effects.

[0046] 1. This utility model, through the support shaft 2, rotating sleeve 4, pressure arm 5, and pressure rod 21, enables stable and controllable arc bending of placed cross-connected steel bars, resulting in good forming effect, facilitating subsequent welding processes, and effectively improving the quality of processing and forming. By setting the outer driven stop rod 7, outer active stop rod 10, inner driven stop rod 23, and inner active stop rod 26, the cross-connected steel bars can be effectively limited during the bending process, ensuring the accuracy of the bending angle and arc dimensions, and improving the processing precision of the product.

[0047] 2. This utility model achieves flexible adjustment of the distance between the external driven stop 7 and the external active stop 10, and between the internal driven stop 23 and the internal active stop 26 through the push plate 9, screw 13, fixed seat 24 and rotating frame 25, thereby adapting to the processing of steel bars of different diameters. The working height of the pressure rod 21 can be adjusted through the left sliding sleeve 17, right sliding sleeve 19, limiting sleeve 18 and pressure rod 21, which is convenient for adjustment when used with steel bars of different thicknesses.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A grounding electrode bridging rebar bending device, comprising a support frame (1), characterized in that, A support shaft (2) is fixedly connected to one side of the top of the support frame (1). A rotating sleeve (4) is rotatably connected to the support shaft (2). A pressure arm (5) is fixedly connected to the bottom of the rotating sleeve (4). Both sides of the support frame (1) are provided with an outer driven stop (7) and an outer active stop (10). The two outer driven stops (7) cooperate with the two outer active stops (10) respectively. A pressure rod (21) is provided between the outer driven stops (7) and the outer active stops (10). Two inner driven stops (23) are fixedly connected to the bottom of the inner wall of the support frame (1). The pressure arm (5) cooperates with the two inner driven stops (23). An inner active stop (26) is provided inside the support frame (1). The two inner driven stops (23) cooperate with the inner active stop (26).

2. The grounding electrode bridging rebar bending device according to claim 1, characterized in that, Both sides of the support frame (1) are fixedly connected to sliding frames (8), and push plates (9) are slidably connected to the two sliding frames (8). The two external active stop rods (10) are respectively fixedly connected to the side of the two push plates (9) near the external passive stop rod (7).

3. The grounding electrode bridging rebar bending device according to claim 2, characterized in that, Both sides of the support frame (1) are fixedly connected to support seats (11), and both support seats (11) are fixedly connected to threaded cylinders (12). Both threaded cylinders (12) are threadedly connected to screws (13). One end of each screw (13) is engaged with one side of each push plate (9), and the other end of each screw (13) is fixedly connected to a screwing frame (14).

4. The grounding electrode bridging rebar bending device according to claim 1, characterized in that, A left support rod (15) is fixedly connected to one side of each of the two external driven stops (7), and a right support rod (16) is fixedly connected to one side of each of the two external active stops (10). The two left support rods (15) cooperate with the two right support rods (16) respectively.

5. A grounding electrode bridging rebar bending device according to claim 4, characterized in that, Each of the two left support rods (15) is fixedly connected to a left sliding sleeve (17) by a fixing bolt. Each of the two left sliding sleeves (17) is fixedly connected to a limit sleeve (18) at the bottom. Each of the two right support rods (16) is fixedly connected to a right sliding sleeve (19) by a fixing bolt. Each of the two right sliding sleeves (19) is fixedly connected to a connecting rod (20) at the bottom. One end of each of the two pressure rods (21) is fixedly connected to one side of the two connecting rods (20). Each of the two pressure rods (21) is slidably connected to the two limit sleeves (18). The other end of each of the two pressure rods (21) is fixedly connected to a baffle (22).

6. The grounding electrode bridging rebar bending device according to claim 1, characterized in that, The bottom of the inner wall of the support frame (1) is fixedly connected to a fixed seat (24), and a rotating frame (25) is rotatably connected to the fixed seat (24). The inner active stop bar (26) is fixedly connected to the top side of the rotating frame (25).

7. The grounding electrode bridging rebar bending device according to claim 1, characterized in that, Two limiting plates (3) are fixedly connected to the support shaft (2). The two limiting plates (3) are located on both sides of the rotating sleeve (4). A handle (6) is fixedly connected to the other end of the pressure arm (5). Pads (27) are fixedly connected to both sides of the top of the support frame (1).

Images