Steel bar bending tool

Abstract

The utility model belongs to the technical field of building construction, and particularly relates to a steel bar bending tool which comprises a loading assembly capable of protecting a core component of the tool, a contact assembly capable of being in multi-point contact with a steel bar to be bent is arranged in front of the loading assembly, and a bending assembly capable of enabling all parts of the contact assembly to bend the steel bar is arranged in the loading assembly. Through the arrangement of parts such as a rotating shaft and a hollow shaft which can coaxially and reversely rotate in a transmission piece of the bending assembly and a transverse moving seat which can transversely move relative to a buckling frame, when power is input, a positioning column and a force application plate which are in contact with different parts of a reinforcing steel bar can jointly apply external force to the reinforcing steel bar, and the reinforcing steel bar can be conveniently bent. Therefore, the bending angle of the reinforcing steel bar and the radian of the bent part can be accurately controlled while the reinforcing steel bar is fully fixed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building construction, specifically relates to a reinforcing steel bar bending tool. BACKGROUND

[0002] Reinforcing steel bar bending tool is the key equipment indispensable in building construction, and can be divided into manual tool and electric / hydraulic equipment according to use scene and function, and its core function is to meet the design requirements (such as beam-column joint, stirrup shape) of engineering structure by accurate bending of reinforcing steel bar.

[0003] The Chinese patent document with the authorized announcement number CN221454189U discloses a reinforcing steel bar bending tool, which is placed between two fixed plates welded in the gap of the inner ring of bearing, and after one end is placed on the L-shaped connecting block, the force plate in contact with the reinforcing steel bar can apply force to the reinforcing steel bar to bend it when the operating rod rotates relative to the bearing.

[0004] However, in the prior art, the power applied to the tool by the worker during manual use of the bending tool can only be transmitted to the reinforcing steel bar in a single area, which is not conducive to fully fixing reinforcing steel bars of different diameters and accurately controlling the bending angle of the reinforcing steel bar and the radius of the bending part. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a reinforcing steel bar bending tool.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A reinforcing steel bar bending tool includes a loading assembly that can protect the core components of the tool, a contact assembly that can multi-point contact the reinforcing steel bar to be bent is arranged in front of the loading assembly, and a bending assembly that can make each part of the contact assembly can bend the reinforcing steel bar is arranged in the loading assembly.

[0008] The loading assembly includes a buckling frame, and two containing shells are fixedly connected to the rear of the buckling frame.

[0009] The contact assembly includes a positioning column arranged in front of the buckling frame, and two force plates are arranged on one side of the positioning column.

[0010] The bending assembly includes a transmission member that can transmit the power applied to the tool to the contact assembly along different paths, and an extension member that can drive the force plate to rotate around the initial position of the positioning column.

[0011] The transmission member comprises a transverse seat movably connected at the back of the buckling frame, a first rack fixedly connected inside the upper portion of the transverse seat, a second rack fixedly connected inside the lower portion of the transverse seat, a first shaft seat arranged between the two accommodating shells, a rotating shaft movably connected at the front of the first shaft seat, a first gear fixedly connected at the front end of the rotating shaft, a second shaft seat arranged at the front of the first shaft seat, a hollow shaft movably connected at the front of the second shaft seat, and a second gear fixedly connected at the front end of the hollow shaft.

[0012] Preferably, the extension member comprises a first branch arm fixedly connected to the outer side surface of the rotating shaft, a second branch arm fixedly connected to the outer side surface of the hollow shaft, and a follow-up cylinder fixedly connected to the front of each of the first branch arm and the second branch arm.

[0013] Preferably, the transverse seat and the follow-up cylinder are in sliding connection with the buckling frame.

[0014] Preferably, the rotating shaft is coaxial with the hollow shaft.

[0015] Preferably, the first shaft seat is in rotational connection with the rotating shaft, and the second shaft seat is in rotational connection with the hollow shaft.

[0016] Preferably, the first rack is in meshing connection with the first gear, and the second rack is in meshing connection with the second gear.

[0017] Preferably, the bending assembly further comprises a handle fixedly connected to the rear end of the rotating shaft.

[0018] Preferably, the handle is a ratchet wrench.

[0019] Preferably, the loading assembly further comprises a connecting rod fixedly connected between the buckling frame and the accommodating shell, an oval-shaped slot transversely arranged at the center of the buckling frame, a rectangular slot arranged at the rear side surface of the buckling frame, and two arc-shaped slots symmetrically arranged on the buckling frame with the oval-shaped slot as the axis.

[0020] The present application has the advantages that: the coaxial and counter-rotating rotating shaft and hollow shaft and the transversely movable transverse seat of the transmission member of the bending assembly can be arranged, so that the positioning column and the force applying plate which contact the steel bar can jointly apply an external force to the steel bar when power is input, so that the bending angle and the arc at the bending position of the steel bar can be precisely controlled while the steel bar is sufficiently fixed. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the following detailed description to explain the present application, but do not constitute a limitation on the present application. In the drawings:

[0022] Figure 1 is a structural schematic view of a steel bar bending tool according to the present application;

[0023] Figure 2 is a main view structural schematic diagram of a reinforcing steel bar bending tool;

[0024] Figure 3 is Figure 1 a partial component another view structural schematic diagram;

[0025] Figure 4 is Figure 3 a partial component structural schematic diagram;

[0026] Figure 5 is Figure 3 a partial component structural schematic diagram;

[0027] Figure 6 is Figure 5 another view structural schematic diagram;

[0028] Figure 7 is Figure 6 a partial component another view structural schematic diagram.

[0029] The figure mark is explained as follows:

[0030] 1, loading assembly; 101, buckling frame; 102, containing shell; 103, connecting rod; 104, oval slot; 105, rectangular slot; 106, arc slot; 2, bending assembly; 201, transverse seat; 202, first rack; 203, second rack; 204, first shaft seat; 205, rotating shaft; 206, first gear; 207, second shaft seat; 208, hollow shaft; 209, second gear; 210, first branch arm; 211, second branch arm; 212, follow-up cylinder; 213, support rod; 214, handle; 3, contact assembly; 301, positioning column; 302, force plate. DETAILED DESCRIPTION

[0031] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0032] In the description of the utility model, it is to explain, unless otherwise definite and limited, the term "installation", "link", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through the intermediate medium, can be the intercommunication of two elements. For ordinary skilled in the art, the above-mentioned terms can be understood by the specific meaning in the utility model through specific circumstances.

[0033] The utility model is further described below through examples in conjunction with the drawings.

[0034] As Figures 1-7 The utility model discloses a reinforcing bar bending tool, including the loading assembly 1 that can protect the core part of the tool, the contact assembly 3 that can multiple point contact the reinforcing bar to be bent is provided with in loading assembly 1 front, the bending assembly 2 that can make each spare part of contact assembly 3 can bend reinforcing bar is provided with in loading assembly 1.

[0035] In the embodiment: loading assembly 1 includes buckling frame 101, two containing shell 102 are fixedly connected to the rear of buckling frame 101, loading assembly 1 still includes connecting rod 103 that is fixedly connected between buckling frame 101 and containing shell 102, the center of buckling frame 101 is provided with oval slot 104 transversely, the rear side of buckling frame 101 is provided with rectangular slot 105, and two arc grooves 106 are provided with on buckling frame 101 with oval slot 104 as the axis symmetry;

[0036] Arc groove 106 is concentric with the main part of buckling frame 101, forms the cavity that is relatively closed through buckling frame 101 and containing shell 102 and contains the transmission part of bending assembly 2 to provide protection for it, improves the connecting effect of buckling frame 101 and containing shell 102 through connecting rod 103, and staff can conveniently move this tool through connecting rod 103, the movable range of positioning column 301 in this tool is commonly limited through oval slot 104, transverse seat 201, the rotation of transverse seat 201 is limited through rectangular slot 105, so that it can only transverse in this tool under external force, the movable range of follow-up cylinder 212 is limited through arc groove 106 and first branch 210 or second branch 211 cooperation.

[0037] In the embodiment: bending assembly 2 includes the transmission part that can transmit the power applied to this tool along different paths to contact assembly 3, the extension piece that can drive force plate 302 to rotate around the initial position of positioning column 301;

[0038] The transmission member comprises a horizontal moving seat 201 movably connected to the rear of the buckling frame 101, a first gear rack 202 fixedly connected to the upper portion of the horizontal moving seat 201, a second gear rack 203 fixedly connected to the lower portion of the horizontal moving seat 201, a first shaft seat 204 arranged between the two accommodating shells 102, a rotating shaft 205 movably connected to the front of the first shaft seat 204, a first gear 206 fixedly connected to the front end of the rotating shaft 205, a second shaft seat 207 arranged in front of the first shaft seat 204, a hollow shaft 208 movably connected to the front of the second shaft seat 207, a second gear 209 fixedly connected to the front end of the hollow shaft 208, the extension member comprises a first branch 210 fixedly connected to the outer side of the rotating shaft 205, the hollow shaft 208 is fixedly connected to the outer side of the second branch 211, the first branch 210 and the second branch 211 are both fixedly connected to the front of the follow-up cylinder 212, the follow-up cylinder 212 is fixedly connected to the front of the supporting rod 213, and the bending assembly 2 further comprises a handle 214 fixedly connected to the rear end of the rotating shaft 205;

[0039] The horizontal moving seat 201 and the follow-up cylinder 212 are both slidably connected to the buckling frame 101, the buckling frame 101 and the rotating shaft 205 are coaxial with the hollow shaft 208, the first shaft seat 204 is rotationally connected to the rotating shaft 205, the second shaft seat 207 is rotationally connected to the hollow shaft 208, the first gear rack 202 is in meshing connection with the first gear 206, the second gear rack 203 is in meshing connection with the second gear 209, and the handle 214 is a ratchet wrench.

[0040] The rotating shaft 205 coaxial with the buckling frame 101 is installed in the accommodating shell 102 through the first shaft seat 204, the hollow shaft 208 is installed in a coaxial manner on the rotating shaft 205 through the second shaft seat 207, the rotation of the rotating shaft 205 is transmitted to the horizontal moving seat 201 through the first gear 206 and the first gear rack 202, so that the horizontal moving seat 201 can move horizontally relative to the buckling frame 101, the displacement of the horizontal moving seat 201 is transmitted to the hollow shaft 208 through the second gear rack 203 and the second gear 209, so that the hollow shaft 208 can rotate relative to the second shaft seat 207 in the opposite direction of the rotating shaft 205, the rotation of the rotating shaft 205 and the hollow shaft 208 is transmitted to the follow-up cylinder 212 passing through different arc-shaped grooves 106 through the first branch 210 and the second branch 211 respectively, and the follow-up cylinder 212 can drive the supporting rod 213 to move along the arc-shaped groove 106 passed through, and the staff can conveniently rotate the rotating shaft 205 through the handle 214.

[0041] In this embodiment, the contact assembly 3 comprises a positioning column 301 fixedly connected to the front of the horizontal moving seat 201, and a force plate 302 movably connected to the outer side of the supporting rod 213.

[0042] The positioning column 301 is composed of columnar structures with different diameters and positioning grooves, the force applying plate 302 is arc-shaped towards the part of the positioning column 301, and the support rod 213 is in sliding connection with the force applying plate 302;

[0043] The part of the steel bar which needs to be bent is contacted by the positioning column 301 with the positioning grooves, and the force applying plate 302 which can move with the support rod 213 contacts the steel bar on the side far from the positioning column 301.

[0044] Working principle: when the tool is installed and used for steel bar bending, the handle 214 is rotated clockwise to rotate the rotating shaft 205, the rotating shaft 205 drives the first gear 206 and the first support arm 210 to rotate clockwise, the first gear 206 rotates clockwise to drive the horizontal moving seat 201 to move right through the first rack 202, and the horizontal moving seat 201 moves right to drive the hollow shaft 208 and the second support arm 211 to rotate counterclockwise through the second rack 203 and other components.

[0045] Therefore, when the steel bar to be bent is placed vertically between the positioning column 301 and the force applying plate 302, and the arc of the positioning groove contacted by the steel bar is consistent with the arc of the steel bar after bending, the handle 214 is rotated clockwise to move the positioning column 301 and the force applying plate 302 towards each other until the positioning column 301 and the force applying plate 302 tightly clamp the steel bar, then the tool is supported by the connecting rod 103, the handle 214 is continuously rotated clockwise to make the positioning column 301 tightly press the bent part of the steel bar and continuously move right, and the force applying plate 302 which contacts the steel bar in a large area drives the rest of the steel bar to pass the positioning column 301 and bend until the steel bar is bent to the required angle.

[0046] The preferred embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of the technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. A reinforcing bar bending tool characterised in that: The utility model provides a loading assembly (1) including the core part of the tool, the loading assembly (1) is provided with the contact assembly (3) of the multi-point contact of the steel bar to be bent in front, the loading assembly (1) is provided with the bending assembly (2) in the contact assembly (3) can make each part of the contact assembly (3) can bend the steel bar, The loading assembly (1) includes a buckling frame (101) fixedly connected with two containing shells (102) at the back thereof. The contact assembly (3) includes a positioning column (301) arranged in front of the buckling frame (101), and two force applying plates (302) are arranged on one side of the positioning column (301). The bending assembly (2) includes a transmission member for transmitting power applied to the tool to the contact assembly (3) along different paths, and an extension member for driving the force applying plates (302) to rotate around the initial position of the positioning column (301). The transmission member includes a horizontal moving seat (201) movably connected at the back of the buckling frame (101), a first gear rack (202) fixedly connected inside the horizontal moving seat (201) at the top thereof, a second gear rack (203) fixedly connected inside the horizontal moving seat (201) at the bottom thereof, a first shaft seat (204) arranged between the two containing shells (102), a rotating shaft (205) movably connected at the front of the first shaft seat (204), a first gear (206) fixedly connected to the front end of the rotating shaft (205), a second shaft seat (207) arranged at the front of the first shaft seat (204), a hollow shaft (208) movably connected at the front of the second shaft seat (207), and a second gear (209) fixedly connected to the front end of the hollow shaft (208).

2. A reinforcing bar bending tool according to claim 1, wherein: The extension member includes a first branch arm (210) fixedly connected to the outer side of the rotating shaft (205), a second branch arm (211) fixedly connected to the outer side of the hollow shaft (208), a follow-up cylinder (212) fixedly connected at the front of the first branch arm (210) and the second branch arm (211), and a support rod (213) fixedly connected at the front of the follow-up cylinder (212).

3. A reinforcing bar bending tool according to claim 2, wherein: The horizontal moving seat (201) and the follow-up cylinder (212) are slidably connected with the buckling frame (101).

4. A reinforcing bar bending tool according to claim 1, wherein: The rotating shaft (205) is coaxial with the hollow shaft (208).

5. A reinforcing bar bending tool according to claim 4 wherein: The first shaft seat (204) is rotationally connected with the rotating shaft (205), and the second shaft seat (207) is rotationally connected with the hollow shaft (208).

6. A reinforcing bar bending tool according to claim 5 wherein: The first gear rack (202) is meshingly connected with the first gear (206), and the second gear rack (203) is meshingly connected with the second gear (209).

7. A reinforcing bar bending tool as claimed in claim 2, wherein: The bending assembly (2) further includes a handle (214) fixedly connected to the rear end of the rotating shaft (205).

8. A reinforcing bar bending tool according to claim 7, wherein: The handle (214) is a ratchet wrench.

9. A reinforcing bar bending tool as claimed in claim 3, wherein: The loading assembly (1) further comprises a connecting rod (103) fixedly connected between the buckle frame (101) and the containing shell (102), an oval slot (104) is arranged transversely at the center of the buckle frame (101), a rectangular slot (105) is arranged on the rear side of the buckle frame (101), and two arc-shaped slots (106) are symmetrically arranged on the buckle frame (101) with the oval slot (104) as the axis.

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