Handheld hydraulic steel bar bender

Abstract

The utility model relates to the technical field of steel bar bending, and discloses a handheld hydraulic steel bar bender which comprises a hydraulic cylinder and a motor, a bottom plate is fixedly installed at the bottom end of the left side of the motor, an adjusting assembly is arranged in the middle of the bottom plate, and a stopping assembly is arranged at the bottom end of the motor. The top end of the lifting pipe is arranged to be the inclined face, when the pressing block moves to make contact with the lifting pipe, the lifting pipe can be pressed downwards, then the pressing rod is driven to move downwards to press the left end of the rotating strip downwards, at the moment, the right end of the rotating strip can move upwards to be pressed on the stop button, the motor is stopped, and then after the specified bending angle is achieved, the pressing rod is pressed downwards. According to the steel bar bending machine, conveying of the pressing blocks can be automatically stopped, the multiple inserting grooves are formed, after square pipes are placed in the different inserting grooves, the pressing blocks can automatically stop moving after moving by different angles, then the steel bars are controlled to be bent by different angles, and operation is easy, convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of steel bar bending technology, and more specifically, to a handheld hydraulic steel bar bending machine. Background Technology

[0002] In construction projects such as building and municipal engineering, there are often situations where it is necessary to bend steel bars. Handheld hydraulic steel bar bending machines are widely used because of their portability. When using existing handheld hydraulic steel bar bending machines, the pressure block is moved by controlling the hydraulic cylinder. However, in actual use, if a specific bending angle is required, it is necessary to change to a different specification of pressure block. During use, it is necessary to constantly change to a suitable pressure head, which makes the operation relatively complicated. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a handheld hydraulic rebar bending machine, which has the advantage of being easy to use.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a handheld hydraulic rebar bending machine, comprising a hydraulic cylinder and a motor, wherein a base plate is fixedly installed at the bottom left side of the motor, an adjustment component is provided in the middle of the base plate, and a stop component is provided at the bottom of the motor;

[0005] The adjustment assembly includes a slot located in the middle of the base plate. A square tube is placed inside the slot, and a lifting tube is slidably connected to the inner cavity of the square tube. A pressure rod and a spring are located at the bottom end of the lifting tube.

[0006] The stopping assembly includes a fixed frame, which is fixedly installed on the bottom surface of the base plate. A rotating bar is rotatably connected to the middle of the fixed frame. Two springs are fixedly installed between the top end of the rotating bar and the base plate. A stop button is fixedly installed at the bottom end of the motor.

[0007] As a preferred embodiment of this utility model, the motor is fixedly installed on the right side of the hydraulic cylinder and the two are connected by transmission. A handle is fixedly installed on the top of the hydraulic cylinder and the motor. A start button is fixedly installed on the left end of the handle. A pressure block is fixedly installed on the output end of the hydraulic cylinder.

[0008] As a preferred embodiment of this utility model, the bottom end of the pressure rod extends through and to the bottom of the base plate, the spring is sleeved on the surface of the pressure rod, and the bottom end of the spring is fixedly connected to the bottom surface of the inner cavity of the square tube.

[0009] As a preferred embodiment of this utility model, the two springs are symmetrically arranged about the center of the fixing frame, and a protective shell is fixedly installed at the bottom end of the base plate. The rotating bar and the stop button are both inside the protective shell.

[0010] As a preferred embodiment of this utility model, rollers are rotatably connected to both the front and rear sides of the left end of the pressure block, a fixing block is fixedly installed on the left side of the top end of the pressure block, and a stop block is rotatably connected to the left side of the top end of the pressure block. The stop block is T-shaped, and the bottom end of the stop block is located in front of the roller axis. A spring is fixedly installed between the right end of the stop block and the fixing block.

[0011] As a preferred embodiment of this utility model, a locking groove is provided on the front side of the left end of the base plate, and an installation groove is provided on the rear side of the left end of the base plate. The installation groove is connected to the locking groove. A spring is fixedly installed at the bottom of the left end of the base plate. A fixed shaft is inserted into the left end of the base plate. A locking block is fixedly installed at the bottom end of the fixed shaft. The locking block is located in the locking groove.

[0012] As a preferred technical solution of this utility model

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model sets the top of the lifting tube as an inclined surface. When the pressure block moves and contacts the lifting tube, it can press the lifting tube down, thereby driving the pressure rod to move down and press down the left end of the rotating bar. At this time, the right end of the rotating bar will move up and press on the stop button, causing the motor to stop. Thus, after reaching the specified bending angle, the conveying of the pressure block can be automatically stopped. By setting multiple slots, square tubes can be placed in different slots, and the pressure block can move at different angles and then automatically stop moving. This allows for control of the bending angle of the steel bar. The operation is simple and convenient.

[0015] 2. This utility model unlocks the roller by rotating the right end of the stop block toward the center of the pressure block, allowing for easy removal and replacement of the roller. By pressing the fixed shaft downwards and then rotating it 180 degrees, the fixed shaft can be directly removed and replaced. By making the easily worn roller and fixed shaft quick-disassembly and replacement, it is convenient to replace them quickly after wear occurs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the rotating bar connection of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point B in the middle;

[0020] Figure 5 This is a cross-sectional schematic diagram of the base plate of the present invention;

[0021] Figure 6 This is a schematic diagram of the fixed shaft structure of this utility model;

[0022] Figure 7 This is a cross-sectional view of the square tube structure of this utility model.

[0023] In the diagram: 1. Hydraulic cylinder; 2. Motor; 3. Handle; 4. Start button; 5. Pressure block; 6. Base plate; 7. Slot; 8. Square tube; 9. Lifting tube; 10. Spring 1; 11. Pressure rod; 12. Fixing frame; 13. Rotating bar; 14. Spring 2; 15. Stop button; 16. Roller; 17. Stop block; 18. Spring 3; 19. Fixing block; 20. Mounting slot; 21. Locking slot; 22. Locking block; 23. Spring 4; 24. Fixing shaft. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 7 As shown, this utility model provides a handheld hydraulic rebar bending machine, including a hydraulic cylinder 1 and a motor 2. A base plate 6 is fixedly installed on the bottom left side of the motor 2. An adjustment component is provided in the middle of the base plate 6. A stop component is provided at the bottom of the motor 2.

[0026] The adjustment assembly includes a slot 7, which is located in the middle of the base plate 6. A square tube 8 is placed inside the cavity of the slot 7. A lifting tube 9 is slidably connected to the cavity of the square tube 8. A pressure rod 11 and a spring 10 are located at the bottom end of the lifting tube 9.

[0027] The stopping assembly includes a fixed frame 12, which is fixedly installed on the bottom surface of the base plate 6. A rotating bar 13 is rotatably connected to the middle of the fixed frame 12. Two springs 14 are fixedly installed between the top of the rotating bar 13 and the base plate 6. A stop button 15 is fixedly installed at the bottom of the motor 2.

[0028] The motor 2 is fixedly installed on the right side of the hydraulic cylinder 1 and the two are connected by transmission. The top of the hydraulic cylinder 1 and the motor 2 are fixedly installed with handles 3. The left end of the handle 3 is fixedly installed with a start button 4. The output end of the hydraulic cylinder 1 is fixedly installed with a pressure block 5.

[0029] The start button 4 is located on the left side of the handle 3. The start button 4 is electrically connected to the motor 2. Pressing the start button 4 will start the motor 2. After releasing it, the motor 2 will continue to move. Pressing the start button 4 again will cause the motor 2 to flip and draw back the hydraulic oil that was sent in.

[0030] The bottom end of the pressure rod 11 extends through and to the bottom of the base plate 6, and the spring 10 is sleeved on the surface of the pressure rod 11. The bottom end of the spring 10 is fixedly connected to the bottom surface of the inner cavity of the square tube 8.

[0031] The upward movement of the lifting tube 9 is achieved by setting a spring-10. When the pressure block 5 is retracted by the hydraulic cylinder 1, the bottom surface of the pressure block 5 leaves the lifting tube 9. At this time, the elasticity of the spring-10 can push the lifting tube 9 back to its original position.

[0032] Among them, the springs 14 are symmetrically arranged about the center of the fixed frame 12, and a protective shell is fixedly installed at the bottom of the base plate 6. The rotating bar 13 and the stop button 15 are both inside the protective shell.

[0033] The rotating bar 13 and the stop button 15 are protected by a protective shell to prevent accidental activation. In addition, two springs 14 are provided so that the elasticity of the two springs 14 can keep the rotating bar 13 in a horizontal state when the pressure rod 11 is not pressed on the rotating bar 13.

[0034] Rollers 16 are rotatably connected to both the front and rear sides of the left end of the pressure block 5. A fixing block 19 is fixedly installed on the left side of the top of the pressure block 5. A stop block 17 is rotatably connected to the left side of the top of the pressure block 5. The stop block 17 is T-shaped. The bottom end of the stop block 17 is located in front of the axis of the roller 16. A spring 18 is fixedly installed between the right end of the stop block 17 and the fixing block 19.

[0035] The elasticity of spring 18 provides a tendency for stop 17 to move away from the center of pressure block 5. When roller 16 needs to be replaced, simply rotate stop 17 to make the bottom of stop 17 offset from roller 16, so that roller 16 can be directly removed for replacement. After roller 16 is installed, the bottom of stop 17 blocks roller 16, and roller 16 will not fall off.

[0036] The base plate 6 has a locking groove 21 on the front side of the left end and an installation groove 20 on the rear side of the left end. The installation groove 20 is connected to the locking groove 21. A spring 23 is fixedly installed at the bottom of the left end of the base plate 6. A fixing shaft 24 is inserted into the left end of the base plate 6. A locking block 22 is fixedly installed at the bottom end of the fixing shaft 24. The locking block 22 is located in the locking groove 21.

[0037] Press down on the fixed shaft 24 to disengage the locking block 22 from the locking groove 21. Then rotate the fixed shaft 24 180 degrees so that the locking block 22 is located in the mounting groove 20. At this point, the fixed shaft 24 can be removed and replaced directly. The spring 4 23 provides an upward tendency for the fixed shaft 24. When installing the fixed shaft 24, after the locking block 22 is located below the locking groove 21, release the fixed shaft 24. The fixed shaft 24 can be pushed upward by the elasticity of the spring 4 23 and locked into the locking groove 21.

[0038] Working principle and usage process of this utility model:

[0039] When using it, first determine the required bending degree of the steel bar, and then place the square tube 8 into the corresponding slot 7 according to the bending degree of the steel bar. The closer the square tube 8 is to the pressure block 5, the larger the bending angle. Conversely, the closer the square tube 8 is to the fixed axis 24, the larger the bending angle.

[0040] Place the reinforcing bar in the area between the fixed shaft 24 and the pressure block 5, then press the start button 4 to start the motor 2. The motor 2 controls the hydraulic cylinder 1 to work and drive the pressure block 5 to move to the left. When the pressure block 5 contacts the reinforcing bar, it bends the reinforcing bar. When the pressure block 5 moves to contact the lifting tube 9, the pressure block 5 moves the lifting tube 9 down through the inclined surface of the lifting tube 9, thereby driving the pressure rod 11 down and pressing down the left end of the rotating bar 13. At this time, the right end of the rotating bar 13 rotates upward and presses down on the stop button 15, cutting off the power to the motor 2. At this time, the pressure block 5 stops moving.

[0041] Press the start button 4 again, and the motor 2 reverses to drive the hydraulic cylinder 1 and the pressure block 5 to reset, and then remove the bent steel bar;

[0042] When roller 16 wears out, rotate the right end of stop 17 toward the center of pressure block 5 to unlock roller 16, allowing roller 16 to be removed and replaced in time. Then, after inserting the new roller 16 into the left end of pressure block 5, release stop 17. Spring 3 18, which is in a stretched state, will drive stop 17 to reset under the action of elasticity. At this time, the bottom end of stop 17 will be stuck on the front side of the top of roller 16, thereby fixing the position of roller 16.

[0043] When the fixed shaft 24 is worn, press the fixed shaft 24 downward to make the locking block 22 leave the locking groove 21, and then rotate it 180 degrees so that the locking block 22 is below the mounting groove 20. At this time, remove the fixed shaft 24 upward. When installing a new fixed shaft 24, align the locking block 22 with the mounting groove 20, and then move the fixed shaft 24 downward. After the locking block 22 leaves the mounting groove 20, rotate it 180 degrees so that the locking block 22 is below the locking groove 21. At this time, release the fixed shaft 24, and the elasticity of the spring 4 23 will push the fixed shaft 24 upward and lock it in the locking groove 21.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handheld hydraulic rebar bending machine, comprising a hydraulic cylinder (1) and a motor (2), characterized in that: A base plate (6) is fixedly installed on the bottom left side of the motor (2), and an adjustment component is provided in the middle of the base plate (6). A stop component is provided at the bottom of the motor (2). The adjustment assembly includes a slot (7) which is located in the middle of the base plate (6). A square tube (8) is placed inside the cavity of the slot (7). A lifting tube (9) is slidably connected to the cavity of the square tube (8). A pressure rod (11) and a spring (10) are located at the bottom end of the lifting tube (9). The stopping assembly includes a fixed frame (12), which is fixedly installed on the bottom surface of the base plate (6). A rotating bar (13) is rotatably connected to the middle of the fixed frame (12). Two springs (14) are fixedly installed between the top of the rotating bar (13) and the base plate (6). A stop button (15) is fixedly installed at the bottom of the motor (2).

2. The handheld hydraulic rebar bending machine according to claim 1, characterized in that: The motor (2) is fixedly installed on the right side of the hydraulic cylinder (1) and the two are connected by transmission. A handle (3) is fixedly installed on the top of the hydraulic cylinder (1) and the motor (2). A start button (4) is fixedly installed on the left end of the handle (3). A pressure block (5) is fixedly installed on the output end of the hydraulic cylinder (1).

3. A handheld hydraulic rebar bending machine according to claim 1, characterized in that: The bottom end of the pressure rod (11) extends through and to the bottom of the base plate (6), and the spring (10) is sleeved on the surface of the pressure rod (11). The bottom end of the spring (10) is fixedly connected to the bottom surface of the inner cavity of the square tube (8).

4. A handheld hydraulic rebar bending machine according to claim 1, characterized in that: The two springs (14) are symmetrically arranged about the center of the fixing frame (12). The bottom end of the base plate (6) is fixedly installed with a protective shell. The rotating bar (13) and the stop button (15) are both inside the protective shell.

5. A handheld hydraulic rebar bending machine according to claim 2, characterized in that: Rollers (16) are rotatably connected to both the front and rear sides of the left end of the pressure block (5). A fixing block (19) is fixedly installed on the left side of the top end of the pressure block (5). A stop block (17) is rotatably connected to the left side of the top end of the pressure block (5). The stop block (17) is T-shaped. The bottom end of the stop block (17) is located in front of the axis of the roller (16). A spring (18) is fixedly installed between the right end of the stop block (17) and the fixing block (19).

6. A handheld hydraulic rebar bending machine according to claim 5, characterized in that: A lock groove (21) is provided on the front side of the left end of the base plate (6), and an installation groove (20) is provided on the rear side of the left end of the base plate (6). The installation groove (20) is connected to the lock groove (21). A spring four (23) is fixedly installed at the bottom of the left end of the base plate (6). A fixed shaft (24) is inserted into the left end of the base plate (6). A lock block (22) is fixedly installed at the bottom end of the fixed shaft (24). The lock block (22) is located in the lock groove (21).

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