Manual steel bar bender

Abstract

The utility model relates to a manual steel bar bender which comprises a bottom plate used for supporting and fixing the whole device. The central shaft is welded on the bottom plate and used for abutting against and fixing the steel bar; the first bearing is mounted on the central shaft to ensure the smoothness of rotation; one end of the rotating rod is connected with the center shaft, and a bending shaft is arranged on the upper portion of the rotating rod and used for rotating around the center shaft to bend the reinforcing steel bars; the second bearing is mounted on the bending shaft to ensure the smoothness of rotation; according to the device, the center shaft is matched with the first bearing and the second bearing, so that the reinforcing steel bar can be fixed and rotationally bent around the center shaft. The device is suitable for production and use in the small-scale building industry, low in cost, small in size, easy to manufacture, time-saving and labor-saving due to the double bearings, and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of construction, specifically to a manual rebar bender. Background Technology

[0002] In the field of rebar processing, traditional rebar bending machines mainly use electric or hydraulic transmission bending devices. While these traditional benders meet the needs of rebar bending to a certain extent, their relatively complex design results in large and heavy sizes, making them inconvenient to handle and store. Furthermore, due to the use of electric or hydraulic transmission, these benders are typically more expensive and consume more energy, which undoubtedly increases production and operating costs for small-scale construction businesses.

[0003] Traditional rebar bending machines often require certain professional skills and experience to operate, making them less convenient and posing a challenge for non-professionals. Furthermore, traditional bending machines may not be quick or accurate enough in determining the length and angle of the rebar, requiring considerable time and effort for adjustments, which reduces work efficiency to some extent.

[0004] Therefore, existing traditional steel bar bending machines are unsuitable for small-scale construction industry production due to their complex design, large size, high cost, high energy consumption, and inconvenient operation. Utility Model Content

[0005] The present invention aims to overcome the defects of the prior art and provide a manual rebar bender, which solves the problems of traditional rebar bending machines being complex in design, large in size, heavy in weight, high in cost, and high in energy consumption, making them unsuitable for small-scale construction industry production.

[0006] To solve the above-mentioned technical problems, this utility model is implemented as follows:

[0007] A manual rebar bender, characterized in that it comprises:

[0008] The base plate is used to support and secure the entire device;

[0009] The central shaft, welded to the base plate, is used to abut and fix the reinforcing bars;

[0010] The first bearing is mounted on the central shaft to ensure smooth rotation;

[0011] A rotating rod, one end of which is connected to the central axis, has a bending shaft on its upper part, which is used to rotate around the central axis to bend the steel bar;

[0012] The second bearing is installed on the bending shaft to ensure smooth rotation;

[0013] The device, through the cooperation of the central shaft and the first and second bearings, enables the reinforcing bars to be fixed and rotated and bent around the central shaft.

[0014] The manual rebar bender is characterized in that an assist sleeve is provided on the rotating rod to reduce the labor intensity during operation.

[0015] The manual rebar bender is characterized by further including a positioning device, which is used to position the rotating rod or bending shaft when the rebar is bent to the required angle, so as to ensure that the bending angle of the rebar is accurate.

[0016] The manual rebar bender is characterized in that the positioning device includes a locking bolt or a locking pin, which fixes the rotating rod or bending shaft in a suitable position when the rebar reaches a predetermined bending angle.

[0017] In use, the central shaft and the second bearing work together to fix the reinforcing bar against each other. The bending shaft rotates around the central bearing to bend the reinforcing bar. Once the reinforcing bar is bent to the required angle, the bending shaft is rotated in the opposite direction to release the bending bar from its restraint. This allows for rapid cutting of the reinforcing bar and improves bending efficiency.

[0018] The beneficial effects of this utility model are as follows: As can be seen from the above technical solution, this application provides a manual rebar bender, which saves time and effort through a double bearing design. The adjustment of the rebar length and bending angle is more intuitive and convenient, and can be operated without professional skills. It adopts manual operation, eliminating the need for an electric or hydraulic system, significantly reducing equipment costs and maintenance expenses. The overall structure is compact and lightweight, making it easy to carry to the construction site and highly adaptable. It is equipped with a safety locking device to effectively prevent misoperation and ensure the safety of operators. Manual operation requires no energy consumption, which is in line with the concept of green energy saving. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of the structure of this application;

[0021] Figure 2 This is a top-down view diagram;

[0022] Figure 3 This is a schematic diagram of the side view. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0024] like Figure 1-3 As shown: A manual rebar bender, comprising:

[0025] Base plate 1, used to support and fix the entire device;

[0026] Central shaft 2, welded to the base plate, is used to abut and fix the reinforcing bars;

[0027] The first bearing 3 is mounted on the central shaft to ensure smooth rotation;

[0028] The rotating rod 4 has one end connected to the central shaft and a bending shaft 4.1 on its upper part, which is used to rotate around the central shaft to bend the steel bar.

[0029] The second bearing 5 is installed on the bending shaft to ensure smooth rotation;

[0030] The device, through the cooperation of the central shaft and the first and second bearings, enables the reinforcing bars to be fixed and rotated and bent around the central shaft.

[0031] An assist sleeve is provided on the rotating rod to reduce the labor intensity during operation.

[0032] It also includes a positioning device, which is used to position the rotating rod or bending shaft when the steel bar is bent to the required angle, so as to ensure that the bending angle of the steel bar is accurate.

[0033] The positioning device includes locking bolts or locking pins. When the reinforcing bar reaches the predetermined bending angle, the rotating rod or bending shaft is fixed in the appropriate position by locking bolts or locking pins.

[0034] Operating steps:

[0035] I. Preparation Stage:

[0036] Ensure all components are securely installed, especially critical components such as the central shaft, bearings, rotating rods, and bending shafts.

[0037] Check if the base plate is stable, and make adjustments if necessary to ensure the stability of the device.

[0038] Place the steel bar to be bent on the central axis, ensuring it is correctly positioned and securely fixed.

[0039] II. Positioning Phase:

[0040] Use a positioning device to fix one end of the reinforcing bar to the base plate or central axis to ensure that the reinforcing bar does not move during bending.

[0041] Adjust the position of the rotating rod and the bending shaft according to the required bending angle and shape.

[0042] III. Bending Stage:

[0043] Hold one end of the rotating rod and apply force to make it rotate around the central axis. At this time, the bending shaft will drive the steel bar to rotate together, thereby achieving bending.

[0044] During the bending process, the steel bar can be observed or measured to ensure that it reaches the required bending angle.

[0045] Once the reinforcing bar is bent to the desired angle, stop rotating the rotating rod and carefully remove the reinforcing bar from the device.

[0046] IV. Material preparation stage:

[0047] To achieve rapid cutting of reinforcing bars, the restriction on bending the bars can be lifted by rotating the bending shaft in the opposite direction. This allows the bent reinforcing bars to easily slide out of the device.

[0048] V. Inspection and Maintenance:

[0049] After each use, check that all parts of the device are in good condition, especially easily worn parts such as bearings and rotating rods.

[0050] Regularly clean the dust and dirt off the device to maintain its good working condition.

[0051] Any damage or wear should be repaired or replaced promptly.

[0052] The above are merely embodiments provided in this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A manual rebar bender, characterized in that, include: The base plate (1) is used to support and fix the entire device; The central shaft (2) is welded to the base plate (1) and is used to abut against and fix the reinforcing bars; The first bearing (3) is installed on the central shaft (2) to ensure smooth rotation; The rotating rod (4) has one end connected to the central shaft (2) and a bending shaft (4.1) on its upper part, which is used to rotate around the central shaft (2) to achieve bending of the steel bar; The second bearing (5) is installed on the bending shaft (4.1) to ensure smooth rotation; The device, through the cooperation of the central shaft (2) and the first bearing (3) and the second bearing (5), enables the reinforcing bar to be fixed and rotated and bent around the central shaft (2).

2. The manual rebar bender according to claim 1, characterized in that, An assist sleeve is provided on the rotating rod (4) to reduce the labor intensity during operation.

3. The manual rebar bender according to claim 1 or 2, characterized in that, It also includes a positioning device for positioning the rotating rod (4) or bending shaft (4.1) when the steel bar is bent to the required angle, so as to ensure that the bending angle of the steel bar is accurate.

4. The manual rebar bender according to claim 3, characterized in that, The positioning device includes locking bolts or locking pins. When the reinforcing bar reaches the predetermined bending angle, the rotating rod (4) or bending shaft (4.1) is fixed in the appropriate position by locking bolts or locking pins.

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