Lever type combined portable stirrup cold bending tool

Abstract

The utility model relates to the field of stirrup cold bending, in particular to a lever type combined portable stirrup cold bending tool which comprises a combined steel bar. The operating handle is arranged at one end of the combined steel bar; and the cold bending sleeve is arranged at the end, away from the operating handle, of the combined steel bar, a notch allowing the longitudinal steel bar to stretch into is formed in one side of the cold bending sleeve, a cold bending opening used for cold bending of the stirrup is formed in the cold bending sleeve, and the cold bending opening is communicated with the notch. Longitudinal steel bars stretch into the cold-bending sleeve through the notches, the vertically-arranged stirrups penetrate through the cold-bending openings, the combined steel bars are in a horizontal state, then the combined steel bars are pulled through the operating handle, the combined steel bars rotate upwards by a certain angle, the cold-bending sleeve can rotate along the surfaces of the longitudinal steel bars, and therefore the longitudinal steel bars can be bent. According to the stirrup cold-bending sleeve, the cold-bending sleeve can conduct cold bending on stirrups through the cold-bending opening, so that the stirrups can be treated in time under the condition that few stirrups are arranged, and a good guarantee is provided for construction quality.

Description

Technical Field

[0001] This application relates to the field of cold bending of stirrups, and in particular to a lever - type combined portable cold bending tool for stirrups. Background Art

[0002] Cold bending of stirrups is a steel bar processing technology, mainly used for the reinforcement of reinforced concrete structures in the construction industry. It involves bending steel bars into the required shapes by mechanical force at normal temperature to meet the requirements of structural design. Stirrups are usually used for the reinforcement of structures such as columns, beams, and slabs to provide additional shear resistance and restraint force.

[0003] During the binding of frame beam / column steel bars, the general binding sequence is to arrange the longitudinal steel bars first, and then bind the transverse steel bars (stirrups) to meet the shear strength of the inclined section, and connect the stressed main steel bars and the concrete in the compression zone to work together.

[0004] In view of the above - mentioned related technologies, stirrups are used to fix the position of the main steel bars and form a steel bar skeleton with various steel bars in the component. During the construction process, situations often occur where the number of stirrups is insufficient during cutting and processing, and additional processing and replenishment are required, which brings great inconvenience to the construction. Utility Model Content

[0005] In order to facilitate the cold bending processing of stirrups, this application provides a lever - type combined portable cold bending tool for stirrups.

[0006] This application provides a lever - type combined portable cold bending tool for stirrups, adopting the following technical solutions:

[0007] A lever - type combined portable cold bending tool for stirrups includes:

[0008] Combined steel bars;

[0009] An operation handle, arranged at one end of the combined steel bars;

[0010] A cold bending sleeve, arranged at the end of the combined steel bars away from the operation handle. A notch for the longitudinal steel bars to extend into is provided on one side of the cold bending sleeve. A cold bending opening for cold bending the stirrups is provided on the cold bending sleeve, and the cold bending opening is communicated with the notch.

[0011] By adopting the above - mentioned technical solutions, the longitudinal steel bars are extended into the cold bending sleeve through the notch, and the vertically arranged stirrups are passed through the cold bending opening. The combined steel bars are in a horizontal state. Then, the combined steel bars are pulled by the operation handle to rotate upward by a certain angle, so that the cold bending sleeve can rotate along the surface of the longitudinal steel bars, and the cold bending sleeve can cold - bend the stirrups through the cold bending opening. Thus, in the case of insufficient stirrups, timely treatment can be achieved, providing a better guarantee for the construction quality.

[0012] Optionally, the operating handle is a stainless steel pipe, and a welding port is formed in the operating handle for one end of the combined steel bar to pass through, and one end of the combined steel bar is welded in the welding port.

[0013] By adopting the above technical solution, the welding of the two not only realizes high-strength connection, but also does not require additional fasteners, thus saving materials and costs.

[0014] Optionally, the cold bending port includes a first cold bending sub-port, a second cold bending sub-port and a third cold bending sub-port. An insertion port communicating with the second cold bending sub-port is formed in the cold bending sleeve, and the stirrup is inserted into the insertion port to be positioned inside.

[0015] By adopting the above technical solution, the tool of the present application can be used alone or in combination according to the needs of the construction site.

[0016] Optionally, the widths of the first cold bending sub-port and the third cold bending sub-port are both 16 mm.

[0017] By adopting the above technical solution, stirrups with a diameter less than 16 mm can be cold bent.

[0018] Optionally, the width of the second cold bending sub-port is 48 mm, and the width of the insertion port is 16 mm.

[0019] By adopting the above technical solution, stirrups with a diameter less than 16 mm can be cold bent.

[0020] Optionally, protective pads are arranged at both ends of the operating handle.

[0021] By adopting the above technical solution, the sharp end of the operating handle is not easy to cut the human hand, so as to improve the safety of operation.

[0022] Optionally, the length of the combined steel bar is 300 mm, and the length of the operating handle is 400 mm.

[0023] By adopting the above technical solution, the length of the combined steel bar is not too short, so as to increase the lever arm and make the operation more labor-saving.

[0024] Optionally, the cold bending sleeve is a stainless steel pipe, and the cold bending sleeve is welded to the end of the combined steel bar.

[0025] By adopting the above technical solution, the welding of the two not only realizes high-strength connection, but also does not require additional fasteners, thus saving materials and costs.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. Operate the handle to turn the combined steel bars, causing the combined steel bars to rotate upward by a certain angle, enabling the cold bending sleeve to rotate along the surface of the longitudinal steel bar, so that the cold bending sleeve can cold bend the stirrup through the cold bending opening, thus enabling timely treatment in the case of insufficient stirrup configuration and providing better guarantee for construction quality;

[0028] 2. The production process of this tool is simple, it can be quickly mass-produced on the construction site, saving time and materials, being convenient to carry, and also convenient to combine. Brief Description of the Drawings

[0029] Figure 1 is a schematic diagram of a lever - type combined portable stirrup cold bending tool;

[0030] Figure 2 is a side view of a lever - type combined portable stirrup cold bending tool;

[0031] Figure 3 is an exploded schematic diagram of a lever - type combined portable stirrup cold bending tool;

[0032] Figure 4 is a front view of a lever - type combined portable stirrup cold bending tool.

[0033] Description of the Reference Numerals in the Drawings: 1. Combined steel bars; 2. Operating handle; 21. Welding joint; 22. Protective pad; 3. Cold bending sleeve; 31. First cold bending cylinder; 32. Second cold bending cylinder; 33. Third cold bending cylinder; 34. Notch; 35. Cold bending opening; 351. First cold bending sub - opening; 352. Second cold bending sub - opening; 353. Third cold bending sub - opening; 354. Insertion opening; 4. Longitudinal steel bar; 5. Stirrup. Detailed Embodiment

[0034] The following further elaborates on this application in conjunction with the attached Figures 1 to 4 to make a more detailed description of this application.

[0035] The embodiment of this application discloses a lever - type combined portable stirrup cold bending tool. Referring to Figure 1 and Figure 2 , the lever - type combined portable stirrup cold bending tool includes combined steel bars 1, an operating handle 2, and a cold bending sleeve 3. The operating handle 2 is installed at one end of the combined steel bars 1, and the cold bending sleeve 3 is installed at the end of the combined steel bars 1 far from the operating handle 2.

[0036] A notch 34 is provided on one side of the cold bending sleeve 3. The notch 34 extends along the length direction of the cold bending sleeve 3, penetrates through the opposite ends of the cold bending sleeve 3, and the notch 34 allows the longitudinal steel bar 4 to extend into it. A cold bending opening 35 is provided on the cold bending sleeve 3. The cold bending opening 35 is communicated with the notch 34, and the cold bending opening 35 is used for cold bending the stirrup 5.

[0037] When cold bending the stirrup 5, move the cold bending sleeve 3 so that the longitudinal steel bar 4 extends into the cold bending sleeve 3 through the notch 34, thereby sleeving the cold bending sleeve 3 outside the horizontally arranged longitudinal steel bar 4. At the same time, make the vertically arranged stirrup 5 pass through the cold bending opening 35. At this time, the combined steel bar 1 is in a horizontal state. Then, operate the handle 2 to turn the combined steel bar 1 upward by a certain angle, so that the cold bending sleeve 3 can rotate along the surface of the longitudinal steel bar 4, enabling the cold bending sleeve 3 to cold bend the stirrup 5 through the cold bending opening 35. Thus, in the case of less stirrup 5, timely treatment can be achieved, providing better guarantee for the construction quality.

[0038] In this embodiment, the operation handle 2 is a stainless steel pipe, and a welding interface 21 is provided on the operation handle 2. One end of the combined steel bar 1 passes through the welding interface 21, and one end of the combined steel bar 1 is welded inside the welding interface 21. The diameter of the welding interface 21 is slightly larger than the size of the combined steel bar 1, facilitating the smooth passing of the combined steel bar 1 through the welding interface 21 and also facilitating the welding of one end of the combined steel bar 1 inside the welding interface 21. The setting of the welding interface 21 facilitates the passing of the combined steel bar 1, and the welding of the two not only realizes high-strength connection but also does not require additional fasteners, thus saving materials and costs.

[0039] Preferably, protective pads 22 are provided at both ends of the operation handle 2. The cross-section of the protective pad 22 is T-shaped. In this embodiment, the protective pad 22 is made of rubber material. The T-shaped cross-section protective pad 22 can completely cover the end face of the operation handle 2, making the sharp end of the operation handle 2 not easily cut the human hand, so as to improve the safety of operation.

[0040] Furthermore, the cold bending sleeve 3 and the end of the combined steel bar 1 away from the operation handle 2 are welded. Welding not only realizes high-strength connection but also does not require additional fasteners, thus further saving materials and costs.

[0041] Refer to Figure 3 and Figure 4 Furthermore, the cold bending sleeve 3 includes a first cold bending cylinder 31, a second cold bending cylinder 32, and a third cold bending cylinder 33. The cold bending opening 35 includes a first cold bending sub-opening 351, a second cold bending sub-opening 352, and a third cold bending sub-opening 353. The first cold bending sub-opening 351 is provided on the first cold bending cylinder 31, the second cold bending sub-opening 352 is provided on the second cold bending cylinder 32, and the third cold bending sub-opening 353 is provided on the third cold bending cylinder 33. An insertion opening 354 is provided on the second cold bending sub-opening 352. The insertion opening 354 is communicated with the second cold bending sub-opening 352, and the stirrup 5 extends into its interior for positioning.

[0042] It should be noted that the first cold-bending split 351, the second cold-bending split 352, and the third cold-bending split 353 can all perform cold-bending processing on the stirrup 5. The first cold-bending split 351 and the second cold-bending split 352 are used when the stirrup 5 is bent at the hook, while the second cold-bending split 352 can be used alone to bend the stirrup 5 by 90 degrees and up to 135 degrees.

[0043] The diameter of the cold-bending sleeve 3 is 57 mm, the length of the first cold-bending cylinder 31 is 75 mm, the length of the second cold-bending cylinder 32 is 185 mm, the length of the third cold-bending cylinder 33 is 140 mm, the width of the first cold-bending split 351 is 16 mm, the width of the second cold-bending split 352 is 48 mm, the width of the insert 354 is 16 mm, and the width of the third cold-bending split 353 is 16 mm. In this way, the first cold-bending split 351, the second cold-bending split 352, and the third cold-bending split 353 can all perform cold-bending processing on the stirrup 5 with a diameter less than 16 mm. In addition, due to the opening of the insert 354 on the second cold-bending split 352, the second cold-bending split 352 in cooperation with the insert 354 can bend the stirrup 5 by up to 135°.

[0044] Finally, the length of the combined steel bar 1 is 300 mm, and the length of the operating handle 2 is 400 mm. In this way, by controlling the length of the combined steel bar 1, the length of the operating handle 2, and the length of the cold-bending sleeve 3, the material consumption can be minimized as much as possible, and the length of the combined steel bar 1 will not be too short to increase the lever arm, making the operation more labor-saving.

[0045] In this embodiment, the combined steel bar 1 is an HRB400 Φ20 steel bar, and the operating handle 2 and the cold-bending sleeve 3 are both 304 stainless steel pipes. Collect a certain number of HRB400 Φ20 steel bars at the construction site and cut them into a certain length to form the combined steel bar 1. Purchase 304 stainless steel pipes and cut them into shape to form the operating handle 2 and the cold-bending sleeve 3. Weld the combined steel bar 1 to the operating handle 2 and the cold-bending sleeve 3 respectively, and use them alone or in combination according to the needs of the construction site. It should be noted that when using them in combination, cut the 304 stainless steel pipe to form a complete cold-bending sleeve 3 so that the first cold-bending split 351, the second cold-bending split 352, and the third cold-bending split 353 are all located on the cold-bending sleeve 3; when using them alone, the cold-bending sleeve 3 can be cut to form the first cold-bending cylinder 31, the second cold-bending cylinder 32, and the third cold-bending cylinder 33.

[0046] In addition, when manufacturing and using this tool, it is necessary to pay attention to: 1. When manufacturing this platform, full welding should be ensured, and the welding quality between the members must be guaranteed; 2. Generally, this tool only needs to be bent 90° upward from the horizontal to complete the cold-bending of the specified angle of the stirrup 5; 3. Adjust the error in time after the tool is worn.

[0047] Compared with the prior art, the present application has the following beneficial effects: 1. It can collect waste for reuse and save materials; 2. It is small and light; 3. The tool has a simple manufacturing process and can be quickly mass-produced on site, saving time and materials, and is easy to carry and assemble; 4. It does not take up space; 5. In the case of insufficient stirrups 5, it can be handled in a timely manner, providing better guarantee for construction quality.

[0048] The implementation principle of a lever-type combined portable stirrup cold-bending tool in an embodiment of the present application is as follows: a certain number of HRB400Φ20 steel bars are collected at the construction site, cut into a certain length according to size to form a combined steel bar 1, 304 stainless steel pipes are purchased and cut into shape to form an operating handle 2 and a cold-bending sleeve 3, the combined steel bar 1 is welded to the operating handle 2 and the cold-bending sleeve 3 respectively, and used alone or in combination according to the needs of the construction site. When in use, the longitudinal steel bar 4 is extended into the cold-bending sleeve 3 through the notch 34, and the vertically arranged stirrup 5 is passed through the cold-bending opening 35, the combined steel bar 1 is in a horizontal state, and then the combined steel bar 1 is pulled by the operating handle 2 to rotate the combined steel bar 1 upward by a certain angle, so that the cold-bending sleeve 3 can rotate along the surface of the longitudinal steel bar 4, so that the cold-bending sleeve 3 can cold-bend the stirrup 5 through the cold-bending opening 35.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lever - type combined portable cold - bending tool for stirrups, characterized in that, Comprising: Composite steel bars (1); An operating handle (2) provided at one end of the composite steel bars (1); A cold bending sleeve (3) provided at the end of the composite steel bars (1) away from the operating handle (2). A notch (34) for the longitudinal steel bars (4) to extend into is formed on one side of the cold bending sleeve (3). A cold bending opening (35) for cold bending stirrups (5) is formed on the cold bending sleeve (3), and the cold bending opening (35) communicates with the notch (34).

2. The lever-type combined portable cold bending tool for stirrups according to claim 1, characterized in that: The operating handle (2) is a stainless steel pipe, and a welding port (21) through which one end of the composite steel bars (1) passes is formed on the operating handle (2). One end of the composite steel bars (1) is welded inside the welding port (21).

3. The lever-type combined portable cold bending tool for stirrups according to claim 1, characterized in that The cold bending opening (35) includes a first cold bending sub-opening (351), a second cold bending sub-opening (352) and a third cold bending sub-opening (353). An insertion opening (354) communicating with the second cold bending sub-opening (352) is formed on the cold bending sleeve (3), and the insertion opening (354) allows the stirrups (5) to extend into its interior for positioning.

4. The lever-type combined portable cold bending tool for stirrups according to claim 3, characterized in that: The widths of both the first cold bending sub-opening (351) and the third cold bending sub-opening (353) are 16 mm.

5. The lever-type combined portable stirrup cold bending tool according to claim 3, wherein: The width of the second cold bending sub-opening (352) is 48 mm, and the width of the insertion opening (354) is 16 mm.

6. The lever - type combined portable cold - bending tool for stirrups according to claim 1, characterized in that: Protective pads (22) are provided at both ends of the operating handle (2).

7. The lever-type combined portable cold bending tool for stirrups according to claim 1, wherein: The length of the composite steel bars (1) is 300 mm, and the length of the operating handle (2) is 400 mm.

8. The lever-type combined portable stirrup cold bending tool according to claim 1, wherein: The cold bending sleeve (3) is a stainless steel pipe, and the cold bending sleeve (3) is welded to the end of the composite steel bars (1).

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