Steel bar bending device

By designing a steel bar bending device that uses rotating handles and rolling bearings, the problem of high friction resistance in traditional steel bar bending torque wrench is solved, and the working efficiency and quality are improved.

CN222695892UActive Publication Date: 2025-04-01HUBEI HUBEI GUANGSHENG CONSTR GRP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421450452.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-24
Publication Date
2025-04-01
Estimated Expiration
2034-06-24

AI Technical Summary

Technical Problem

During the construction of shear wall, traditional steel bar bending torque wrench has a large friction resistance due to the sliding friction between the steel bars and fixed piles or pressure plates, which increases the difficulty of operation and affects efficiency and quality.

Method used

A steel bar bending device is designed. By combining a rotating handle and a rolling bearing, the sliding friction during the steel bar bending process is converted into rolling friction to reduce friction resistance.

Benefits of technology

It effectively reduces the friction resistance during the bending of steel bars, reduces the difficulty of operation and waste of manpower and material resources, and improves the working efficiency and the quality of steel bar bends.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222695892U_ABST
    Figure CN222695892U_ABST
Patent Text Reader

Abstract

The utility model provides a steel bar bending device, wherein two end plates are vertically arranged on a fixed base, a rotating handle is rotatably connected to the end plates, bending rods are arranged at both ends of the end plates, a plurality of rolling bearings are symmetrically arranged on both sides of the other end of the rotating handle, a fixed baffle is vertically arranged on one side of the end plate, the fixed baffle is perpendicular to the fixed base, the steel bar passes through the gap between the fixed base and the fixed baffle, is clamped between the first V-shaped groove and the second V-shaped groove, bypasses the bending rod, and abuts against the lower edge of the rolling bearing, and the rotating handle rotates to bend the steel bar, so as to solve the problem that the friction resistance between the wrench and the steel bar is large during the steel bar bending process, resulting in laborious processing and affecting the working efficiency and quality.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar processing equipment, in particular to a steel bar bending device. Background Art

[0002] During the shear wall construction process, in order to ensure the precise position and shape of the steel bars to ensure the strength and stability of the structure, the steel bars need to be bent. Correct steel bar configuration and bending processing can help improve the seismic performance and bearing capacity of the shear wall.

[0003] The traditional rebar bending moment wrench is mainly composed of a frame and a bending pressure plate. The pressing wrench bends the rebar bypassing the fixed pile. The rebar pile or the fixed pressure plate is fixed on the handle of the moment wrench. When it is necessary to bend the rebar at the upper end of the shear wall, the rebar must produce sliding friction with the fixed rebar pile or pressure plate during the bending process, which increases the resistance to the relative movement of the contact surface, increases the difficulty of the operation, and easily causes a waste of manpower and material resources, thereby seriously affecting the operation efficiency, and is also likely to affect the bending quality. Utility Model Content

[0004] The main purpose of the utility model is to provide a steel bar bending device to solve the problem that the friction resistance between the wrench and the steel bar is large during the bending process, which leads to laborious processing and affects the working efficiency and quality.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a steel bar bending device, two end plates are vertically provided on the fixed base, one end of the rotating handle is rotatably connected to the end plate through a rotating shaft, the rotating shaft extends out of the two ends of the end plate for a distance as a bending rod, and multiple rolling bearings are symmetrically provided on both sides of the other end of the rotating handle, a fixed baffle is vertically provided on one side of the end plate, the fixed baffle is perpendicular to the fixed base, the steel bar passes through the gap between the fixed base and the fixed baffle, bypasses the bending rod, and rests on the lower edge of the rolling bearing, and the rotating handle is rotated to bend the steel bar.

[0006] In the preferred embodiment, the rolling bearing is connected to the rotating handle through a fixed shaft, two rolling bearings are provided on each side, and there is a distance between the two rolling bearings on the same side, and the steel bar rests on the lower edge between the two rolling bearings.

[0007] In a preferred embodiment, the rotating end of the rotating handle is semicircular and is disposed between two end plates. Both sides are uniformly narrowed to the other end and connected to the bending handle.

[0008] In the preferred embodiment, the middle part of the fixed baffle is connected to the end plate, and a vertical wedge and a horizontal wedge are provided in the fixed baffle. The lower inclined surface of the vertical wedge is slidably connected with the upper inclined surface of the horizontal wedge. The vertical wedge moves up and down in the vertical groove of the fixed baffle, driving the horizontal wedge to move horizontally in the horizontal groove of the fixed baffle.

[0009] In the preferred embodiment, a rebound chamber is also provided in the middle of the vertical groove in the fixed baffle, and an elastic part is provided in the rebound chamber. The vertical wedge block passes through the rebound chamber and is sleeved in the elastic part. The upper end of the elastic part is connected to the upper wall of the rebound chamber, and the lower end is connected to the middle of the vertical wedge block, driving the vertical wedge block to move upward.

[0010] In the preferred embodiment, the structure of the vertical wedge block is: a long column is sleeved in the vertical groove and extends a certain distance from the upper surface of the fixed baffle. A smooth inclined surface is provided at the extended end. The rotating handle rotates and presses up and down on the inclined surface. A T-shaped slider is provided at the lower end of the vertical wedge block.

[0011] In the preferred embodiment, the structure of the horizontal wedge block is: a trapezoidal block with an inclined upper surface, a T-shaped slide groove is provided in the middle of the inclined surface, the T-shaped slider is slidably connected with the T-shaped slide groove, and positioning blocks are symmetrically provided on both sides of the end plate at the lower end of the horizontal wedge block, and a first V-shaped groove is provided at one end of the positioning block;

[0012] The horizontal wedge block is arranged in a horizontal groove at a height from the lower surface of the fixed baffle plate, and the positioning block extends out of the fixed baffle plate for a distance.

[0013] In the preferred embodiment, one end of the T-shaped slide groove of the horizontal wedge block is a through groove, and the other end is a certain distance away from the end face of the low end of the trapezoidal block. One side of the long column of the vertical wedge block is higher than the end of the same side of the T-shaped slider, and the T-shaped slider rests on the inner wall of the low end of the T-shaped slide groove.

[0014] In a preferred embodiment, two second V-shaped grooves having the same shape as the first V-shaped groove are symmetrically provided at corresponding positions of the positioning block on one side of the fixed base, and the steel bar is arranged between the first V-shaped groove and the second V-shaped groove.

[0015] In a preferred embodiment, a fixed handle is also provided on the fixed base, and the fixed handle is connected to the fixed base and the end plate.

[0016] The utility model provides a steel bar bending device, wherein two end plates are vertically arranged on a fixed base, a rotating handle is rotatably connected to the end plates, a rotating shaft extends out of the two ends of the end plates for a distance as a bending rod, a plurality of rolling bearings are symmetrically arranged on both sides of the other end of the rotating handle, a fixed baffle is vertically arranged on one side of the end plate, the fixed baffle is perpendicular to the fixed base, the steel bar passes through the gap between the fixed base and the fixed baffle, is clamped between the first V-shaped groove and the second V-shaped groove, bypasses the bending rod, and abuts against the lower edge of the rolling bearing, the rotating handle rotates to bend the steel bar, and the sliding friction between the wrench fixing part and the steel bar is converted into rolling friction between the bearing and the steel bar, thereby solving the problem that the friction resistance between the wrench and the steel bar is large during the bending process, resulting in laborious processing and affecting the work efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 This is the axonometric diagram of the overall appearance structure of the utility model;

[0019] Figure 2 It is a side view of the overall appearance of the utility model;

[0020] Figure 3 This is a schematic diagram of the steel bar installation structure of the utility model;

[0021] Figure 4 This is a structural diagram of the rotary handle of the utility model;

[0022] Figure 5 This is a structural diagram of the fixed base and fixed baffle of the utility model;

[0023] Figure 6 It is a schematic diagram of fixing steel bars of the utility model;

[0024] Figure 7 This is a schematic diagram of the installation of the vertical wedge and the horizontal wedge of the utility model;

[0025] Figure 8 This is a cross-sectional structural diagram of the fixed baffle of the utility model;

[0026] Fig. 9 This is an axonometric structural diagram of the vertical wedge block of the utility model;

[0027] Fig.10 This is an axonometric structural diagram of the horizontal wedge block of the utility model;

[0028] Fig.11 It is a cross-sectional structural diagram of the horizontal wedge block of the utility model.

[0029] In the figure: a fixed base 1; a fixed handle 101; a second V-shaped groove 102; an end plate 2; a rotating handle 3; a rotating shaft 4; a bending rod 5; a rolling bearing 6; a fixed baffle 7; a vertical groove 701; a horizontal groove 702; a rebound chamber 703; a steel bar 8; a fixed shaft 9; a vertical wedge block 10; a long column 1001; a T-shaped slider 1002; a horizontal wedge block 11; a T-shaped slide groove 1101; a positioning block 1102; a first V-shaped groove 1103; and an elastic member 12. DETAILED DESCRIPTION

[0030] Example 1

[0031] like Figures 1 to 11As shown, a steel bar bending device, two end plates 2 are vertically arranged on a fixed base 1, one end of a rotating handle 3 is rotatably connected to the end plate 2 through a rotating shaft 4, the rotating shaft 4 extends a distance from both ends of the end plate 2 as a bending rod 5, and multiple rolling bearings 6 are symmetrically arranged on both sides of the other end of the rotating handle 3, a fixed baffle 7 is vertically arranged on one side of the end plate 2, and the fixed baffle 7 is perpendicular to the fixed base 1, and a steel bar 8 passes through the gap between the fixed base 1 and the fixed baffle 7, bypasses the bending rod 5, and rests on the lower edge of the rolling bearing 6, and the rotating handle 3 rotates and bends the steel bar 8. The bearings are symmetrically arranged on both sides so that both sides can be used for bending processing.

[0032] In the preferred embodiment, the rolling bearing 6 is connected to the rotating handle 3 through the fixed shaft 9, two rolling bearings 6 are provided on both sides, and the two rolling bearings 6 on the same side are spaced a distance apart, and the steel bar 8 rests on the lower edge between the two rolling bearings 6. The gap between the two bearings is used to limit the steel bar 8 to prevent deviation during the bending process.

[0033] In the preferred embodiment, the rotating end of the rotating handle 3 is semicircular and is disposed between the two end plates 2 . Both sides are uniformly narrowed to the other end and connected to the bending handle 301 .

[0034] In the preferred embodiment, the middle part of the fixed baffle 7 is connected to the end plate 2, and a vertical wedge 10 and a horizontal wedge 11 are provided in the fixed baffle 7. The lower end inclined surface of the vertical wedge 10 is slidingly connected with the upper end inclined surface of the horizontal wedge 11. The vertical wedge 10 moves up and down in the vertical groove 701 of the fixed baffle 7, driving the horizontal wedge 11 to move horizontally in the horizontal groove 702 of the fixed baffle 7.

[0035] In the preferred embodiment, a rebound chamber 703 is further provided in the middle of the vertical groove 701 in the fixed baffle 7, and an elastic member 12 is provided in the rebound chamber 703. The vertical wedge 10 passes through the rebound chamber 703 and is sleeved in the elastic member 12. The upper end of the elastic member 12 is connected to the upper wall of the rebound chamber 703, and the lower end is connected to the middle of the vertical wedge 10, driving the vertical wedge 10 to move upward. The vertical wedge 10 is always subjected to an upward force, thereby driving the horizontal wedge 11 to always extend out of the fixed baffle 7 without being subjected to other external forces.

[0036] In the preferred embodiment, the structure of the vertical wedge 10 is as follows: the long column 1001 is sleeved in the vertical groove 701 and extends a certain distance from the upper surface of the fixed baffle 7, and a smooth inclined surface is provided at the extended end, the rotating handle 3 rotates against the inclined surface to press down, and a T-shaped slider 1002 is provided at the lower end of the vertical wedge 10. This makes the rotating handle 3 contact and press down with the vertical wedge 10 more smoothly and the force is more even.

[0037] In the preferred embodiment, the structure of the horizontal wedge block 11 is: a trapezoidal block with an inclined upper surface, a T-shaped slide groove 1101 is provided in the middle of the inclined surface, a T-shaped slider 1002 is slidably connected to the T-shaped slide groove 1101, and positioning blocks 1102 are symmetrically provided on both sides of the end plate 2 at the lower end of the horizontal wedge block 11, and a first V-shaped groove 1103 is provided at one end of the positioning block 1102;

[0038] The horizontal wedge block 11 is arranged in the horizontal groove 702 at a height from the lower surface of the fixed baffle plate 7 , and the positioning block 1102 extends out of the fixed baffle plate 7 for a distance.

[0039] The T-shaped slider groove cooperates to prevent the horizontal wedge block 11 and the vertical wedge block 10 from slipping off.

[0040] In the preferred embodiment, one end of the T-shaped slot 1101 of the horizontal wedge block 11 is a through slot, and the other end is a distance away from the short end face of the trapezoidal block, and one side of the long column 1001 of the vertical wedge block 10 is higher than one end of the same side face of the T-shaped slider 1002, and the T-shaped slider 1002 abuts against the inner wall of the short end of the T-shaped slot 1101. The horizontal movement of the horizontal wedge block 11 is limited to prevent the horizontal wedge block 11 from falling off the fixed baffle 7 after moving to the short end face.

[0041] In the preferred embodiment, two second V-shaped grooves 102 having the same shape as the first V-shaped groove 1103 are symmetrically arranged at the corresponding position of the positioning block 1102 on one side of the fixed base 1, and the steel bar 8 is arranged between the first V-shaped groove 1103 and the second V-shaped groove 102. The inserted steel bar 8 is positioned and clamped by the first V-shaped groove 1103 and the corresponding second V-shaped groove 102 on the extended positioning block 1102, and can adapt to steel bars 8 of different diameters.

[0042] In the preferred embodiment, a fixed handle 101 is further provided on the fixed base 1, and the fixed handle 101 is connected to the fixed base 1 and the end plate 2. The force arm is extended by the elongated fixed handle 101 and the bending handle 301, so that the bending process is more labor-saving.

[0043] When in use, turn the rotating handle 3 to above the fixed baffle 7, press down the vertical wedge 10, retract the horizontal wedge 11 into the fixed baffle 7, and the steel bar 8 passes through the gap between the fixed base 1 and the fixed baffle 7. After the bending part is moved to bypass the bending rod 5, turn the rotating handle 3 to make the steel bar 8 rest against the lower edge of the rolling bearing 6. The vertical wedge 10 loses the downward pressure, and the elastic member 12 drives the positioning block 1102 of the horizontal wedge 11 to extend. The first V-shaped groove 1103 cooperates with the second V-shaped groove 102 to clamp the steel bar 8. Continue to turn the rotating handle 3 to bend the steel bar 8. The rolling bearing 6 and the V-shaped groove are symmetrically arranged, and two steel bars 8 can be bent at the same time.

[0044] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A steel bar bending device, characterized in that: Two end plates (2) are vertically arranged on the fixed base (1); one end of a rotating handle (3) is rotatably connected to the end plate (2) via a rotating shaft (4); the rotating shaft (4) extends a distance from both ends of the end plate (2) to serve as a bending rod (5); a plurality of rolling bearings (6) are symmetrically arranged on both sides of the other end of the rotating handle (3); a fixed baffle (7) is vertically arranged on one side of the end plate (2); the fixed baffle (7) is perpendicular to the fixed base (1); a steel bar (8) passes through a gap between the fixed base (1) and the fixed baffle (7), bypasses the bending rod (5), and abuts against the lower edge of the rolling bearing (6); the rotating handle (3) rotates to bend the steel bar (8).

2. A steel bar bending device according to claim 1, characterized in that: The rolling bearing (6) is connected to the rotating handle (3) via a fixed shaft (9). Two rolling bearings (6) are respectively provided on both sides, and a distance is provided between the two rolling bearings (6) on the same side. The steel bar (8) abuts against the lower edge between the two rolling bearings (6).

3. A steel bar bending device according to claim 1, characterized in that: The rotating end of the rotating handle (3) is semicircular and is arranged between the two end plates (2). Both sides are evenly narrowed to the other end and connected to the bending handle (301).

4. A steel bar bending device according to claim 1, characterized in that: The middle part of the fixed baffle (7) is connected to the end plate (2). A vertical wedge (10) and a horizontal wedge (11) are provided in the fixed baffle (7). The lower end inclined surface of the vertical wedge (10) is slidably connected with the upper end inclined surface of the horizontal wedge (11). The vertical wedge (10) moves up and down in the vertical groove (701) of the fixed baffle (7), driving the horizontal wedge (11) to move horizontally in the horizontal groove (702) of the fixed baffle (7).

5. A steel bar bending device according to claim 4, characterized in that: A rebound chamber (703) is also provided in the middle of the vertical groove (701) in the fixed baffle (7), and an elastic member (12) is provided in the rebound chamber (703). The vertical wedge block (10) passes through the rebound chamber (703) and is sleeved in the elastic member (12). The upper end of the elastic member (12) is connected to the upper wall of the rebound chamber (703), and the lower end is connected to the middle of the vertical wedge block (10), so as to drive the vertical wedge block (10) to move upward.

6. A steel bar bending device according to claim 4, characterized in that: The structure of the vertical wedge block (10) is as follows: a long column (1001) is sleeved in the vertical groove (701) and extends a certain distance from the upper surface of the fixed baffle (7), a smooth inclined surface is provided at the extended end, a rotating handle (3) rotates to press against the inclined surface, and a T-shaped slider (1002) is provided at the lower end of the vertical wedge block (10).

7. A steel bar bending device according to claim 4, characterized in that: The structure of the horizontal wedge block (11) is as follows: a trapezoidal block with an inclined upper surface, a T-shaped slide groove (1101) is provided in the middle of the inclined surface, a T-shaped slider (1002) is slidably connected to the T-shaped slide groove (1101), positioning blocks (1102) are symmetrically provided on both sides of the end plate (2) at the lower end of the horizontal wedge block (11), and a first V-shaped groove (1103) is provided at one end of the positioning block (1102); The horizontal wedge block (11) is arranged in a horizontal groove (702) at a height from the lower surface of the fixed baffle plate (7), and the positioning block (1102) extends out of the fixed baffle plate (7) for a distance.

8. A steel bar bending device according to claim 7, characterized in that: One end of the T-shaped slide groove (1101) of the horizontal wedge block (11) is a through groove, and the other end is a distance away from the end face of the short end of the trapezoidal block. One side of the long column (1001) of the vertical wedge block (10) is higher than the distance of one end of the same side of the T-shaped slider (1002), and the T-shaped slider (1002) is against the inner wall of the short end of the T-shaped slide groove (1101).

9. A steel bar bending device according to claim 1, characterized in that: Two second V-shaped grooves (102) having the same shape as the first V-shaped groove (1103) are symmetrically arranged at corresponding positions of the positioning block (1102) on one side of the fixed base (1), and the steel bar (8) is arranged between the first V-shaped groove (1103) and the second V-shaped groove (102).

10. The steel bar bending device according to claim 1, characterized in that: A fixed handle (101) is also provided on the fixed base (1), and the fixed handle (101) is connected to the fixed base (1) and the end plate (2).