Steel bar bending tool

By designing a rebar bending tool, the problem of rework caused by incomplete rebar binding on the construction site was solved, enabling fast and convenient rebar bending processing, improving construction efficiency and tool adaptability.

CN223506113UActive Publication Date: 2025-11-04JIUYANG CONSTR GRP CO LTD
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Patent Information

Application Number
CN202423077095.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-11-04
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

During the steel reinforcement binding process at the construction site, the lack of stirrups in the bound beams and columns led to rework that was time-consuming and labor-intensive, affecting construction efficiency.

Method used

Design a rebar bending tool, including a handle, a hooking mechanism, and a holding mechanism. The hook hooks the original rebar, and the holding mechanism presses the rebar to be bent, causing it to bend around the original rebar. An arc groove is provided to fix the rebar, and the distance between the pressure seat and the fixing seat can be adjusted to accommodate rebars of different specifications.

Benefits of technology

It enables quick and convenient bending of steel bars on the construction site, improving construction efficiency, adapting to different steel bar specifications, and reducing the risk of tool damage and loss.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of building construction, and discloses a steel bar bending tool which comprises two bent hooks, an operation cavity is formed between the two bent hooks, each bent hook is provided with a bent part, and the bent parts of the two bent hooks are parallel to each other; and the pressing and holding mechanism is located in the operation cavity and connected with the bent hook, and a space allowing a steel bar to penetrate through the operation cavity is formed between the pressing and holding mechanism and the bent part. The influence of steel bar binding omission on the construction efficiency can be reduced.
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Description

Technical Field

[0001] This application relates to the technical field of building construction, and in particular to a rebar bending tool. Background Technology

[0002] Currently, the binding and processing of steel bars on construction sites is usually done in the back-end processing shed to form precast components, which are then transported to the site for use. However, during construction, there are instances where the bound beams and columns are missing one or two stirrups. If the bound steel bars have to be sent back to the back-end for removal and rework, it is not only time-consuming and labor-intensive, but also easily has an adverse impact on construction efficiency. Utility Model Content

[0003] To reduce the impact of incomplete rebar binding on construction efficiency, this application provides a rebar bending tool.

[0004] This application provides a rebar bending tool, which adopts the following technical solution:

[0005] A rebar bending tool, comprising:

[0006] handle;

[0007] A hooking mechanism, connected to the end of the handle, includes two hooks forming an operating cavity between them. Each hook has a curved portion, and the curved portions of the two hooks are parallel to each other.

[0008] A holding mechanism is located in the operating cavity and connected to the hook, and a space is formed between the holding mechanism and the bending part for the reinforcing bar to pass through the operating cavity.

[0009] By adopting the above technical solution, the hook is attached to the original steel bar, and then the steel bar to be bent is passed between the original steel bar and the holding mechanism. Then the handle is pressed down, which drives the holding mechanism to press the steel bar to be bent, so that the steel bar to be bent can be bent around the original steel bar.

[0010] Optionally, the holding mechanism has an arc groove at one end near the curved portion for inserting the reinforcing bar.

[0011] By adopting the above technical solution, and by setting an arc groove for the reinforcing bar to be inserted at one end of the holding mechanism near the bending part, the reinforcing bar can be fixed more firmly, preventing it from sliding or falling off during bending, thus improving the accuracy and stability of bending.

[0012] Optionally, the distance between the two ends of the curved portion is consistent or gradually increases in the direction closer to the handle.

[0013] By adopting the above technical solution, the distance between the two ends of the curved part is consistent or gradually increases towards the handle, so that the curved part can smoothly hook onto the original steel bar.

[0014] Optionally, the hook has a base with a placement surface perpendicular to the extension direction of the handle.

[0015] By adopting the above technical solution, the base set on the hook has a placement surface perpendicular to the extension direction of the handle, so that the tool can be stably placed on the ground when idle, reducing damage or loss caused by random placement, and improving the usability and safety of the tool.

[0016] Optionally, the handle includes multiple detachably connected segmented rods.

[0017] By adopting the above technical solution, the handle includes multiple detachable segments, which allows the tool's length to be adjusted according to actual needs, adapting to different construction environments and the length requirements of reinforcing bars, thus improving the tool's flexibility and practicality.

[0018] Optionally, the pressing mechanism includes a pressure plate, which is simultaneously fixed to both of the hooks.

[0019] Optionally, the pressing mechanism includes a fixed seat, a pressing seat, and an adjusting member; the fixed seat is fixedly connected to the hook, the pressing seat is located on the side of the fixed seat near the curved portion, and the distance between the pressing seat and the fixed seat is adjusted by the adjusting member.

[0020] By adopting the above technical solution, the distance between the pressure seat and the fixed seat can be adjusted according to the diameter and bending requirements of the steel bar, so as to meet the processing requirements of steel bars of different specifications.

[0021] Optionally, the adjusting member includes a through post and a locking head; the through post is connected to the pressing seat, and the through post is slidably inserted into the fixed seat along the distribution direction of the fixed seat and the pressing seat; there are two locking heads, both of which are sleeved and threadedly connected to the through post, and the two locking heads respectively abut against opposite sides of the fixed seat.

[0022] By adopting the above technical solution, the pressure seat can slide along the through-post and be fixed by the locking head. The adjustment process is simple and quick, and the locking head can ensure that the pressure seat is not easy to loosen or shift after it is fixed, thus improving the stability and safety of the tool.

[0023] Optionally, the pressing seat has a guide portion, and the side of the hook facing the operating cavity has a guide groove for the guide portion to move along the sliding direction of the through column.

[0024] By adopting the above technical solution, the cooperation between the guide part and the guide groove makes the movement of the pressure seat more stable.

[0025] In summary, this application includes at least one of the following beneficial effects:

[0026] 1. This tool can quickly and conveniently bend steel bars on the construction site. It is suitable for handling situations where tied beams and columns are missing a small number of stirrups. It can bend steel bars on-site and can be used when there is no steel bar bending machine or when processing a small amount of steel bars, thus improving construction efficiency.

[0027] 2. By adjusting the distance between the fixed seat and the pressure seat, the position of the pressure seat pressing against the reinforcing bar can be adjusted, thereby providing adaptability to the tool. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of Embodiment 1 of this application;

[0029] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0030] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this application;

[0031] Figure 4 This is a schematic diagram of the explosion structure between the fixed seat and the pressure seat in Embodiment 2 of this application;

[0032] Figure 5 This is a schematic diagram of the explosive structure between the two segmented rods in Embodiment 3 of this application;

[0033] Figure 6 yes Figure 5 Enlarged structural diagram at point B;

[0034] Figure 7 This is a schematic diagram of the structure of Embodiment 4 of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Handle; 2. Hook; 21. Bending part; 22. Straight part; 23. Extension part; 3. Operating cavity; 4. Arc groove; 5. Base; 6. Placement surface; 7. Segment rod; 8. Pressure plate; 9. Fixed seat; 10. Pressing seat; 11. Adjusting component; 111. Through column; 112. Locking head; 12. Guide part; 13. Guide groove; 14. Insertion block; 15. Insertion groove; 16. Longitudinal reinforcement; 17. Stirrup. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0037] This application discloses a rebar bending tool. (Refer to...) Figure 1 The rebar bending tool includes a handle 1, a hooking mechanism, and a pressing mechanism. The hooking mechanism is connected to the handle 1 and is used to hook the rebar perpendicular to the rebar to be bent. The pressing mechanism is connected to the hooking mechanism and is used to press down the rebar to be bent. In this embodiment, the rebar hooked by the hooking mechanism is a longitudinal bar 16, and the rebar to be bent is a stirrup 17.

[0038] Specifically, refer to Figure 1 The handle 1 is a straight, rod-shaped extension. In this embodiment, the handle 1 is made of No. 14 steel bar and is 400mm long.

[0039] Reference Figure 1 and Figure 2 The hooking mechanism includes two hooks 2, each fixed to one end of the handle 1 by welding. Each hook 2 includes a curved portion 21, a straight portion 22, and an extension portion 23 connected in sequence. The extension portion 23 is straight, and the hook 2 is fixed to the end of the handle 1 via the end of the extension portion 23 away from the straight portion 22. The distance between the two extension portions 23 corresponding to the two hooks 2 gradually increases away from the handle 1. The straight portion 22 is straight, and the two straight portions 22 corresponding to the two hooks 2 are parallel to each other, and the straight portion 22 and the extension portion 23 are located on the same plane. The curved portion 21 is curved by bending the straight portion. One end of the curved portion 21 is fixedly welded to the straight portion 22, and the two ends of the curved portion 21 away from each other form an entrance for the longitudinal rib 16 to enter and abut against the inner wall of the curved portion 21. The two curved portions 21 corresponding to the two hooks 2 are parallel to each other.

[0040] In this embodiment, the change in distance between the two extensions 23 creates an operating cavity 3 between the two hooks 2. It should be noted that in this embodiment, the bending angle of the bent portion 21 is 180°, the bending radius is 15mm, and the two ends of the bent portion 21 that are far apart are parallel to each other. In other embodiments, the distance between the two ends of the bent portion 21 that are far apart gradually increases towards the straight portion 22, so that the bent portion 21 widens, facilitating the entry of the reinforcing bar into the bent portion 21.

[0041] Reference Figure 1 and Figure 2 The pressing mechanism includes a pressure plate 8, which is square in shape and located in the operating cavity 3. The pressure plate 8 is fixedly welded to two straight sections 22 at opposite ends. An arc groove 4 is formed on the end face of the pressure plate 8 near the curved section 21. The arc groove 4 is an arc shape with its opening facing downwards, and there is a distance between the arc groove 4 and the curved section 21 to allow the reinforcing bar to pass through the operating cavity 3 and abut against the arc groove 4. In this embodiment, the pressure plate 8 is made of 5mm thick steel plate.

[0042] The implementation principle of the steel bar bending tool in this application embodiment is as follows: When in use, the bending part 21 is first hung on the longitudinal bar 16 with the inlet facing upward. The stirrup 17 to be bent passes through the gap between the longitudinal bar 16 and the pressure plate 8. The stirrup 17 passes through the operating cavity 3 in the direction perpendicular to the longitudinal bar 16 and abuts into the arc groove 4. Then, the handle 1 is pressed down to make the bending part 21 rotate around the longitudinal bar 16, so that the pressure plate 8 bends the stirrup 17 around the longitudinal bar 16 downward.

[0043] Example 2:

[0044] The main difference between this embodiment and Embodiment 1 lies in the different holding mechanisms.

[0045] Specifically, refer to Figure 3 In this embodiment, the pressing mechanism includes a fixed base 9, a pressing base 10, and an adjusting member 11.

[0046] The fixing seat 9 is square in shape and is located in the operating cavity 3. The length direction of the fixing seat 9 is parallel to the distribution direction of the two hooks 2. The two ends of the fixing seat 9 that are far apart from each other are fixedly welded to the junction of the extension 23 and the straight part 22 in the two hooks 2.

[0047] The pressing seat 10 is square and can move along the length of the straight portion 22 in the operating cavity 3. The pressing seat 10 is located on the side of the fixed seat 9 near the curved portion 21, and the arc groove 4 is opened on the side of the pressing seat 10 away from the fixed seat 9.

[0048] The adjusting component 11 is connected between the fixed seat 9 and the pressing seat 10. It is used to adjust the distance between the fixed seat 9 and the pressing seat 10 and to position the pressing seat 10, thereby adjusting the position of the arc groove 4 and improving the pressing effect of the pressing seat 10 on the reinforcing bar.

[0049] The adjusting component 11 includes a through-post 111 and a locking head 112. The through-post 111 is fixed to the side of the pressing seat 10 facing the fixed seat 9. The through-post 111 is a stud with external threads, and its axis is parallel to the length direction of the straight part 22. The through-post 111 slides through the fixed seat 9 along its own axis. The locking head 112 is nut-shaped, and there are two locking heads 112. Both locking heads 112 are sleeved and threaded onto the through-post 111, and the two locking heads 112 are opposite to the two opposite sides of the fixed seat 9.

[0050] When the position of the pressure seat 10 needs to be adjusted, first loosen the locking head 112, and then move the through post 111 to move the pressure seat 10. After the position of the pressure seat 10 is adjusted, move the two locking heads 112 threadedly to press against the opposite sides of the fixed seat 9 to position the through post 111 relative to the fixed seat 9, thereby positioning the pressure seat 10.

[0051] Reference Figure 3 and Figure 4 Furthermore, to improve the stability of the pressure seat 10 during movement, guide portions 12 are fixed to both end faces of the pressure seat 10 facing the hook 2. The guide portions 12 are square-shaped. The straight portion 22 and the curved portion 21 are provided with guide grooves 13 along the length direction of the straight portion 22, allowing the guide portions 12 to slide along the length direction of the straight portion 22. When the column 111 drives the pressure seat 10 to move, the guide portions 12 slide in the guide grooves 13 to improve the stability of the movement of the pressure seat 10.

[0052] Example 3:

[0053] The difference between this embodiment and Embodiment 1 is that the structure of handle 1 is different.

[0054] Reference Figure 5 In this embodiment, the handle 1 includes a segmented rod 7, which is rod-shaped and has multiple sections. The multiple segments of the segmented rod 7 are sequentially spliced ​​along the length direction of the segmented rod 7 so as to adjust the extension length of the handle 1 and facilitate disassembly and storage of the handle 1.

[0055] Reference Figure 5 and Figure 6 Specifically, one end of the segment rod 7 is fixed with a plug-in block 14, which is polygonal in shape, but square in this embodiment. The end of the segment rod 7 away from the plug-in block 14 is provided with a plug-in groove 15, which is used for the plug-in blocks 14 of adjacent segment rods 7 to be plugged into. After two adjacent segment rods 7 are connected to each other through the plug-in block 14 and the plug-in groove 15, bolts that are simultaneously inserted into the plug-in block 14 are threaded at the positions opposite to the segment rod 7 and the plug-in groove 15, thereby restricting the separation between two adjacent segment rods 7.

[0056] Example 4:

[0057] The difference between this embodiment and Embodiment 1 is that the rebar bending tool also includes a base 5.

[0058] Specifically, refer to Figure 7 The base 5 is fixed to the bottom of the curved part 21, and the bottom surface of the base 5 is the placement surface 6. The handle 1 is perpendicular to the placement surface 6. When storing the rebar bending tool, the placement surface 6 can be placed against the ground so that the base 5 supports the rebar bending tool and improves the stability of the tool when storing it.

[0059] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rebar bending tool, characterized in that, include: Handle (1); A hooking mechanism, connected to the end of the handle (1), includes two hooks (2), an operating cavity (3) is formed between the two hooks (2), each hook (2) has a curved portion (21), and the curved portions (21) of the two hooks (2) are parallel to each other; and The pressing mechanism is located in the operating cavity (3) and connected to the hook (2), and a space is formed between the pressing mechanism and the bending part (21) for the reinforcing bar to pass through the operating cavity (3).

2. The rebar bending tool according to claim 1, characterized in that: The holding mechanism has an arc groove (4) at one end near the curved part (21) for inserting the reinforcing bar.

3. A rebar bending tool according to claim 1, characterized in that: The distance between the two ends of the curved portion (21) is consistent or gradually increases in the direction of approaching the handle (1).

4. A rebar bending tool according to claim 1, characterized in that: The hook (2) has a base (5) and the base (5) has a placement surface (6) that is perpendicular to the extension direction of the handle (1).

5. A rebar bending tool according to claim 1, characterized in that: The handle (1) includes multiple detachable segments (7).

6. A rebar bending tool according to claim 1, characterized in that: The pressing mechanism includes a pressure plate (8), which is simultaneously fixed to the two hooks (2).

7. A rebar bending tool according to claim 1, characterized in that: The pressing mechanism includes a fixed seat (9), a pressing seat (10), and an adjusting member (11); the fixed seat (9) is fixedly connected to the hook (2), the pressing seat (10) is located on the side of the fixed seat (9) close to the curved part (21), and the distance between the pressing seat (10) and the fixed seat (9) is adjusted by the adjusting member (11).

8. A rebar bending tool according to claim 7, characterized in that: The adjusting member (11) includes a through post (111) and a locking head (112); the through post (111) is connected to the pressing seat (10), and the through post (111) slides through the fixed seat (9) along the distribution direction of the fixed seat (9) and the pressing seat (10); there are two locking heads (112), both of which are sleeved and threadedly connected to the through post (111), and the two locking heads (112) respectively abut against the opposite sides of the fixed seat (9).

9. A rebar bending tool according to claim 8, characterized in that: The pressing seat (10) has a guide portion (12), and the hook (2) has a guide groove (13) on the side facing the operating cavity (3) for the guide portion (12) to move along the sliding direction of the through post (111).