Steel bar bending device

Abstract

The utility model discloses a reinforcing steel bar bending device which comprises a force application rod, a pressing column, a connecting body and two parallel dowel bars, the connecting body is fixed at one ends of the two dowel bars, the other ends of the two dowel bars are provided with hook parts, the two ends of the pressing column are arranged on the two dowel bars in a sliding mode respectively, the force application rod is movably arranged in the connecting body in a penetrating mode, and the pressing column is fixed on the connecting body. One end of the force application rod is connected with the pressing column, the other end of the force application rod is suspended outwards to form a force application part, and a locking mechanism used for locking the force application rod is arranged on the connecting body. The reinforcing steel bar bending device is simple in structure, meets the bending requirements of reinforcing steel bars with various diameters, and is high in adaptability.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, specifically to a steel bar bending device. Background Technology

[0002] In reinforced concrete structures, the main function of stirrups and tie bars is to connect the main reinforcing bars and the supporting reinforcing bars to form a steel skeleton, increasing the shear and bending resistance of the concrete members and improving their overall mechanical properties. The ends of stirrups and tie bars in the structure generally need to be bent into hooks, with a bending angle generally not less than 135°. For ease of construction, workers typically bend one end of the tie bar to 90° and the other end to 135°. After the tie bar is installed, the 90° hook is then manually bent to 135° on-site to meet construction requirements.

[0003] Currently, bending of reinforcing bars is generally achieved using reinforcing bar bending devices, such as the stirrup bending device for beam sections used in building construction (application number 202410326152.4). This device includes a positioning bracket, a handle, and a bending component. The handle is located on the positioning bracket and on its first side; the bending component is also located on the positioning bracket, which includes a bracket body and a rotating hook. Existing stirrup bending devices have the following shortcomings: the relative positions of the bracket body and the rotating hook are fixed, meaning the distance between the pressing position and the rotating position cannot be adjusted, i.e., the pressing torque cannot be adjusted. This makes it difficult to meet the bending requirements of reinforcing bars of various diameters, resulting in poor adaptability. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a steel bar bending device with a simple structure, which meets the bending requirements of steel bars of various diameters and has strong adaptability.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A rebar bending device includes a force-applying rod, a pressure column, a connecting body, and two parallel force-transmitting rods. The connecting body is fixed to one end of the two force-transmitting rods, and the other end of each of the two force-transmitting rods is provided with a hook portion. The two ends of the pressure column are slidably disposed on the two force-transmitting rods, respectively. The force-applying rod is movably inserted through the connecting body. One end of the force-applying rod is connected to the pressure column, and the other end protrudes outward to form a force-applying portion. The connecting body is provided with a locking mechanism for locking the force-applying rod.

[0007] As a further improvement to the above technical solution:

[0008] The locking mechanism includes an upper support and a lower pressing component arranged opposite to each other. The upper support is fixed to the connecting body, and the lower pressing component is disposed on the connecting body and can be adjusted relative to the upper support. The force-applying rod passes through the space between the upper support and the lower pressing component.

[0009] The pressing assembly includes an adjusting member and a pressing locking block. The adjusting member is threadedly connected to the connecting body, and the pressing locking block is rotatably connected to the adjusting member. The force-applying rod passes through the space between the upper support and the pressing locking block.

[0010] One end of the adjusting component is rotatably connected to the pressing and locking block, and the other end extends above the connecting body to form a screwing part.

[0011] The connecting body includes a guide frame and a locking frame. The two ends of the guide frame and the locking frame are respectively fixed on two force transmission rods. The guide frame has a guide hole in the middle, and the force application rod is movably inserted into the guide hole. The locking mechanism is provided on the locking frame.

[0012] The guide frame is located between the pressure column and the locking frame.

[0013] The guide frame and the locking frame are fixedly connected.

[0014] The force transmission rod is provided with a sliding groove, and both ends of the pressure column are provided with sliders. The sliders at both ends of the pressure column are respectively slidably disposed in the sliding grooves of the two force transmission rods.

[0015] The hook portion is arc-shaped.

[0016] The arc β of the hook portion is greater than 180°.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] The rebar bending device of this utility model is used as follows: First, hook the hooks of the two force transmission rods onto the tie rod perpendicular to the rebar to be bent, and let the end of the rebar to be bent pass through the pressure column toward the tie rod perpendicular to the rebar to be bent; second, adjust the distance between the pressure column and the hook to the required distance by sliding the pressure column along the force transmission rod, and then lock the force application rod through the locking mechanism; then, hold the force application part and press down on the force application part until the end of the rebar to be bent is bent to the required angle. This rebar bending device allows for adjustment of the distance between the pressure column and the hook, thereby adjusting the distance between the pressing position and the rotation position of the rebar end to adjust the downward torque, meeting the bending requirements of rebars of various diameters (e.g., increasing the downward torque for large-diameter rebars and decreasing the downward torque for small-diameter rebars), making it highly adaptable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of the steel bar bending device of this utility model.

[0020] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle.

[0021] Figure 3 This is a top view of the steel bar bending device of this utility model.

[0022] The labels in the diagram represent:

[0023] 1. Force-applying rod; 11. Force-applying part; 2. Pressure column; 21. Sliding block; 3. Connecting body; 31. Guide frame; 311. Guide hole; 32. Locking frame; 4. Force-transmitting rod; 41. Hook part; 5. Locking mechanism; 51. Upper support part; 52. Lower pressing assembly; 521. Adjusting part; 522. Lower pressing locking block; 523. Tightening part; 6. Slide groove. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Figures 1 to 3This invention illustrates an embodiment of the rebar bending device. The rebar bending device of this embodiment includes a force-applying rod 1, a pressure column 2, a connecting body 3, and two parallel force-transmitting rods 4. The connecting body 3 is fixed to one end of the two force-transmitting rods 4, and the other end of each of the two force-transmitting rods 4 is provided with a hook portion 41. The two ends of the pressure column 2 are slidably disposed on the two force-transmitting rods 4, respectively. The force-applying rod 1 is movably inserted through the connecting body 3. One end of the force-applying rod 1 is connected to the pressure column 2, and the other end protrudes outward to form a force-applying portion 11. The connecting body 3 is provided with a locking mechanism 5 for locking the force-applying rod 1.

[0029] Usage: First, hook the hooks 41 of the two force transmission rods 4 onto the tie rod perpendicular to the rebar to be bent, and let the end of the rebar to be bent pass through the pressure column 2 toward the tie rod perpendicular to the rebar to be bent; second, adjust the distance between the pressure column 2 and the hooks 41 to the required distance by sliding the pressure column 2 along the force transmission rod 4, and then lock the force application rod 1 through the locking mechanism 5; then, hold the force application part 11 and press down on the force application part 11 until the end of the rebar to be bent is bent to the required angle. This rebar bending device allows for adjustment of the distance between the pressure column 2 and the hooks 41, thereby adjusting the distance between the pressing position and the rotation position of the rebar end to adjust the downward torque, meeting the bending requirements of rebars of various diameters (e.g., for rebars with larger diameters, the downward torque can be increased, and for rebars with smaller diameters, the downward torque can be decreased), making it highly adaptable.

[0030] Furthermore, such as Figure 2 As shown, in this embodiment, the locking mechanism 5 includes an upper support 51 and a lower pressing component 52 arranged opposite to each other. The upper support 51 is fixed to the connecting body 3, and the lower pressing component 52 is disposed on the connecting body 3 and its distance relative to the upper support 51 is adjustable. The force-applying rod 1 passes through the space between the upper support 51 and the lower pressing component 52. Moving the lower pressing component 52 away from the upper support 51 releases the locking effect on the force-applying rod 1; conversely, moving the lower pressing component 52 closer to the upper support 51 clamps the force-applying rod 1, thus achieving the locking effect. The structure is simple and the operation is convenient.

[0031] Furthermore, such as Figure 2 As shown, in this embodiment, the pressing component 52 includes an adjusting member 521 and a pressing locking block 522. The adjusting member 521 is threadedly connected to the connecting body 3, and the pressing locking block 522 is rotatably connected to the adjusting member 521. The force-applying rod 1 passes through the space between the upper support 51 and the pressing locking block 522. The distance between the pressing locking block 522 and the upper support 51 can be adjusted by rotating the adjusting member 521 to lock and unlock the force-applying rod 1, which is convenient to operate.

[0032] Furthermore, in this embodiment, one end of the adjusting member 521 is rotatably connected to the pressing locking block 522, and the other end extends above the connecting body 3 to form a screwing part 523. Since one end of the adjusting member 521 is rotatably connected to the pressing locking block 522, rotating the adjusting member 521 does not cause the pressing locking block 522 to rotate. The other end of the adjusting member 521 extending above the connecting body 3 to form the screwing part 523 facilitates screwing operations.

[0033] Furthermore, in this embodiment, the connecting body 3 includes a guide frame 31 and a locking frame 32. The two ends of the guide frame 31 and the locking frame 32 are respectively fixed to two force transmission rods 4. A guide hole 311 is provided in the middle of the guide frame 31, through which the force application rod 1 movably passes. The locking mechanism 5 is located on the locking frame 32. The guide frame 31 and the locking frame 32 are fixed between one end of the two force transmission rods 4, and the force application rod 1 movably passes through the guide hole 311, resulting in a stable overall structure. Specifically, the upper support 51 is fixed to the locking frame 32, and the adjusting member 521 is threadedly connected to the locking frame 32. One end of the adjusting member 521 is rotatably connected to the lower locking block 522, and the other end extends above the locking frame 32 to form a screwing part 523.

[0034] Furthermore, in this embodiment, the guide frame 31 is located between the pressure column 2 and the locking frame 32. Preferably, the guide frame 31 and the locking frame 32 are fixedly connected to improve the stability of the overall structure.

[0035] Furthermore, in this embodiment, the force transmission rod 4 is provided with a sliding groove 6, and both ends of the pressure column 2 are provided with sliders 21, which are respectively slidably disposed in the sliding grooves 6 of the two force transmission rods 4. Specifically, the pressure column 2 is cylindrical.

[0036] Furthermore, such as Figure 1 As shown, in this embodiment, the hook portion 41 is arc-shaped, which facilitates hooking onto the tie rod and rotating it.

[0037] Furthermore, in this embodiment, the arc β of the hook portion 41 is greater than 180°, which serves to prevent detachment. Specifically, the arc β of the hook portion 41 should be less than 360°, and an opening needs to be formed for the tie bar perpendicular to the rebar to be bent to enter.

[0038] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A steel bar bending device, characterized in that: It includes a force-applying rod (1), a pressure column (2), a connecting body (3), and two parallel force-transmitting rods (4). The connecting body (3) is fixed to one end of the two force-transmitting rods (4), and the other end of the two force-transmitting rods (4) is provided with a hook (41). The two ends of the pressure column (2) are respectively slidably disposed on the two force-transmitting rods (4). The force-applying rod (1) is movably inserted in the connecting body (3). One end of the force-applying rod (1) is connected to the pressure column (2), and the other end protrudes outward to form a force-applying part (11). The connecting body (3) is provided with a locking mechanism (5) for locking the force-applying rod (1).

2. The steel bar bending device according to claim 1, characterized in that: The locking mechanism (5) includes an upper support (51) and a lower pressing component (52) arranged opposite to each other. The upper support (51) is fixed on the connecting body (3). The lower pressing component (52) is provided on the connecting body (3) and can be adjusted relative to the upper support (51). The force-applying rod (1) passes through the space between the upper support (51) and the lower pressing component (52).

3. The steel bar bending device according to claim 2, characterized in that: The pressing assembly (52) includes an adjusting member (521) and a pressing locking block (522). The adjusting member (521) is threadedly connected to the connecting body (3), and the pressing locking block (522) is rotatably connected to the adjusting member (521). The force-applying rod (1) passes through the space between the upper support (51) and the pressing locking block (522).

4. The steel bar bending device according to claim 3, characterized in that: One end of the adjusting member (521) is rotatably connected to the pressing locking block (522), and the other end extends to the top of the connecting body (3) to form a screwing part (523).

5. The steel bar bending device according to any one of claims 1 to 4, characterized in that: The connecting body (3) includes a guide frame (31) and a locking frame (32). The two ends of the guide frame (31) and the locking frame (32) are respectively fixed on two force transmission rods (4). The guide frame (31) has a guide hole (311) in the middle. The force application rod (1) is movably inserted in the guide hole (311). The locking mechanism (5) is provided on the locking frame (32).

6. The steel bar bending device according to claim 5, characterized in that: The guide frame (31) is located between the pressure column (2) and the locking frame (32).

7. The steel bar bending device according to claim 5, characterized in that: The guide frame (31) and the locking frame (32) are fixedly connected.

8. The steel bar bending device according to any one of claims 1 to 4, characterized in that: The force transmission rod (4) is provided with a sliding groove (6), and both ends of the pressure column (2) are provided with sliders (21). The sliders (21) at both ends of the pressure column (2) are respectively slidably placed in the sliding grooves (6) of the two force transmission rods (4).

9. The steel bar bending device according to any one of claims 1 to 4, characterized in that: The hook portion (41) is arc-shaped.

10. The steel bar bending device according to claim 9, characterized in that: The arc β of the hook portion (41) is greater than 180°.

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