Steel bar bender for civil engineering

Abstract

The utility model relates to the field of steel bar benders, and discloses a civil engineering steel bar bender which comprises a box body, installation blocks are fixedly installed at the four corners of the bottom of the box body, idler wheels are rotatably installed on the outer sides of the installation blocks, a disc is arranged at the top of the box body, and a connecting rod is fixedly installed at the bottom of the disc. The bottom of the connecting rod penetrates into the box body, a limiting assembly used for abutting against the reinforcing steel bars is arranged on the top of the box body, and a rotating assembly used for bending the reinforcing steel bars is arranged in the box body. According to the steel bar bending machine, through mutual cooperation of the motor, the placing plate, the large gear and the small gear, when a steel bar needing to be bent is placed on the box body, the motor can be started, the output end of the motor drives the small gear to rotate, the small gear rotates to drive the large gear to rotate, and the large gear rotates to drive the connecting rod and the disc to rotate; therefore, the steel bars on the box body can be bent.

Description

Technical Field

[0001] The utility model relates to the field of steel bar bending machines, in particular to a steel bar bending machine for civil construction. Background Art

[0002] The steel bar bending machine is one of the steel bar processing machines. The working mechanism is a horizontal working disc rotating on a vertical axis. The steel bar is placed in the dotted position in the figure. The supporting pin is fixed on the machine tool. The center pin and the bending pin are installed on the working disc. When the disc rotates, the steel bar is bent. In order to bend steel bars of various diameters, there are several holes on the working disc for inserting the bending pins, and the center pins of different diameters can also be replaced accordingly.

[0003] As a key material in civil engineering, rebar is widely used in various structures such as buildings, bridges, and roads. It can withstand tensile forces and enhance the strength and stability of concrete structures. Different civil engineering projects require rebar to be bent into various shapes to meet specific structural design requirements. Currently, after the rebar is bent by a rebar bending machine used in civil engineering construction, the bent rebar needs to be manually removed from between two fixed columns, which makes the operation inconvenient. The rebar is also prone to wear and tear due to friction with the fixed columns, and the rebar is prone to popping out, posing a threat to the operator's personal safety. Therefore, a rebar bending machine for civil engineering is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a steel bar bending machine for civil engineering, which aims to improve the problem in the existing technology that after the steel bar bending machine bends the steel bar, the bent steel bar needs to be manually taken out from between the two fixed columns, which makes the operation inconvenient, and the steel bar is easily worn by friction with the fixed columns, and the steel bar is easily popped out, thereby posing a threat to the personal safety of the operator.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A rebar bending machine for civil engineering, comprising a box body, mounting blocks fixedly mounted at the four corners of the bottom of the box body, rollers rotatably mounted on the outer sides of the mounting blocks, a disc mounted on the top of the box body, a connecting rod fixedly mounted on the bottom of the disc, the bottom of the connecting rod extending into the interior of the box body, a limiting assembly for tightening the rebars disposed on the top of the box body, and a rotating assembly for bending the rebars disposed inside the box body;

[0007] As a further description of the above technical solution:

[0008] The rotating assembly includes a motor, a placement plate is fixedly installed at the bottom of the motor, the placement plate is fixedly installed inside the box, a large gear is fixedly installed at the bottom of the connecting rod, and a small gear is fixedly installed at the output end of the box, and the large gear and the small gear are meshed;

[0009] As a further description of the above technical solution:

[0010] The limiting assembly includes a connecting plate, the bottom of the connecting plate contacts the top of the box body, a U-shaped frame is provided on the rear side of the box body, a clamping plate is rotatably installed inside the U-shaped frame, the four corners of the front side of the U-shaped frame are fixedly installed with a first limiting block, the two sides of the top of the connecting plate are fixedly installed with a second limiting block, and connecting rods are provided on both sides of the top of the connecting plate, the outer side of the top of the connecting rod is rotatably installed with the inner side of the first limiting block, and the inner side of the bottom of the connecting rod is rotatably installed through a shaft pin and the second limiting block;

[0011] As a further description of the above technical solution:

[0012] A triangular block is fixedly installed on the top of the connecting plate, a screw is fixedly and rotatably installed on the front side of the triangular block, a rectangular plate is fixedly installed on the front side of the top of the box body, and the front end of the screw passes through the front side of the rectangular plate and is threadedly installed with the rectangular plate;

[0013] As a further description of the above technical solution:

[0014] A rotating disk is fixedly mounted on the front end of the screw, and a rotating block is fixedly mounted on the surface of the rotating disk;

[0015] As a further description of the above technical solution:

[0016] A clamping ring is provided on the surface of the disc, a bolt is threadedly installed on the top of the clamping ring, and the bottom of the bolt penetrates into the interior of the disc;

[0017] As a further description of the above technical solution:

[0018] Two sets of door frames are arranged on the left side of the box body. Handles are fixedly installed on the front sides of the door frames. The door frames are rotatably installed with the box body through hinges.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, the motor, the placement plate, the large gear and the small gear cooperate with each other. When the steel bars to be bent are placed on the box, the motor can be started at this time. The output end of the motor drives the small gear to rotate, and the rotation of the small gear drives the large gear to rotate. The rotation of the large gear drives the connecting rod and the disc to rotate, so that the steel bars on the box can be bent.

[0021] 2. In the utility model, through the mutual cooperation of the connecting plate, U-shaped frame, splint, first limit block, second limit block and connecting rod, when the connecting plate is pushed toward the back, the connecting plate will drive the second limit block to move toward the back, and the connecting rod will change from a horizontal state to an inclined state. At this time, the U-shaped frame and the splint will be subjected to the extrusion force of the connecting rod, and the U-shaped frame and the splint will move toward the back, so that the splint and the surface of the steel bar will contact, thereby limiting the steel bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the top structure of the box proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the box proposed by the utility model;

[0024] Figure 3 For this utility model Figure 1 A in the middle shows the enlarged structure diagram;

[0025] Figure 4 For this utility model Figure 1 Enlarged structural diagram at point B in the middle.

[0026] Legend:

[0027] 1. Box body; 2. Mounting block; 3. Roller; 4. Disc; 5. Connecting rod; 6. Limiting assembly; 61. Connecting plate; 62. U-shaped frame; 63. Clamp; 64. First limiting block; 65. Second limiting block; 66. Connecting rod; 67. Triangular block; 68. Screw; 69. Rectangular plate; 7. Rotating assembly; 71. Motor; 72. Placement plate; 73. Large gear; 74. Small gear; 8. Rotating disk; 9. Rotating block; 10. Snap ring; 11. Bolt; 12. Door frame; 13. Handle. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Reference Figure 1-4The utility model provides an embodiment: a steel bar bending machine for civil engineering, comprising a box body 1, with mounting blocks 2 fixedly mounted at the four corners of the bottom of the box body 1, and rollers 3 rotatably mounted on the outer side of the mounting blocks 2, a disc 4 is provided on the top of the box body 1, and a connecting rod 5 is fixedly mounted on the bottom of the disc 4, and the bottom of the connecting rod 5 passes through the interior of the box body 1, and a limiting component 6 for tightening the steel bar is provided on the top of the box body 1, and a rotating component 7 for bending the steel bar is provided inside the box body 1. First, the steel bar to be bent can be placed on the box body 1, and then the steel bar can be tightened by the limiting component 6, and then the steel bar can be bent by rotating the component 7.

[0030] Reference Figure 1-4 The rotating assembly 7 includes a motor 71, a placing plate 72 is fixedly installed at the bottom of the motor 71, the placing plate 72 is fixedly installed inside the box 1, a large gear 73 is fixedly installed at the bottom of the connecting rod 5, and a small gear 74 is fixedly installed at the output end of the box 1. The large gear 73 and the small gear 74 are engaged. Through the mutual cooperation of the motor 71, the placing plate 72, the large gear 73 and the small gear 74, when the steel bars to be bent are placed on the box 1, the motor 71 can be started at this time, and the output end of the motor 71 drives the small gear 74 to rotate. The rotation of the small gear 74 drives the large gear 73 to rotate, and the rotation of the large gear 73 drives the connecting rod 5 and the disc 4 to rotate, so that the steel bars on the box 1 can be bent.

[0031] Reference Figure 1-4The limiting assembly 6 includes a connecting plate 61, the bottom of the connecting plate 61 contacts the top of the box body 1, and a U-shaped frame 62 is provided on the rear side of the box body 1. A splint 63 is rotatably installed inside the U-shaped frame 62. The four corners of the front of the U-shaped frame 62 are fixedly installed with a first limiting block 64, and the two sides of the top of the connecting plate 61 are fixedly installed with a second limiting block 65. Both sides of the top of the connecting plate 61 are provided with a connecting rod 66. The outer side of the top of the connecting rod 66 and the inner side of the first limiting block 64 are rotatably installed, and the inner side of the bottom of the connecting rod 66 is rotatably installed through the shaft pin and the second limiting block 65. Through the mutual cooperation of the connecting plate 61, U-shaped frame 62, splint 63, first limiting block 64, second limiting block 65 and connecting rod 66, when the connecting plate 61 is pushed toward the back, the connecting plate 61 will drive the second limit block 65 to move toward the back, at this time the connecting rod 66 will change from a horizontal state to an inclined state, at this time the U-shaped frame 62 and the splint 63 will be squeezed by the connecting rod 66, at this time the U-shaped frame 62 and the splint 63 will move toward the back, so that the splint 63 and the steel bar surface will contact, thereby limiting the steel bar, the top of the connecting plate 61 is fixedly installed with a triangular block 67, the front side of the triangular block 67 is fixedly rotatably installed with a screw 68, the front side of the top of the box body 1 is fixedly installed with a rectangular plate 69, the front end of the screw 68 passes through the front side of the rectangular plate 69 and is threadedly installed with the rectangular plate 69, through the mutual cooperation of the triangular block 67, the screw 68 and the rectangular plate 69, the triangular block 67 can be driven to move toward the back when the screw 68 is rotated, and the triangular block 6 7 moves toward the back, driving the connecting plate 61 to move toward the back, and the connecting plate 61 will drive the second limit block 65 to move toward the back. At this time, the connecting rod 66 will change from a horizontal state to an inclined state. At this time, the U-shaped frame 62 and the clamping plate 63 will be squeezed by the connecting rod 66. At this time, the U-shaped frame 62 and the clamping plate 63 will move toward the back, so that the clamping plate 63 will contact the surface of the steel bar, thereby limiting the steel bar. The front end of the screw 68 is fixedly installed with a rotating disk 8, and the surface of the rotating disk 8 is fixedly installed with a rotating block 9. Through the mutual cooperation of the rotating disk 8 and the rotating block 9, the rotating disk 8 can be driven to rotate when the rotating block 9 is rotated. The rotation of the rotating disk 8 drives the screw 68 to rotate, thereby increasing the contact area of ​​the rotating screw 68 and improving the efficiency of limiting the steel bar. The surface of the box body 1 is provided with a clamping ring 10, and the top thread of the clamping ring 10 is installed with a bolt 11, and the bottom of the bolt 11 passes through the interior of the disc 4. Through the cooperation between the clamping ring 10 and the bolt 11, one end of the steel bar can be placed inside the clamping ring 10. Since the clamping ring 10 is soft steel, the bolt 11 can be rotated at this time, and the bolt 11 will enter the interior of the disc 4, thereby limiting the steel bar. Two sets of door frames 12 are provided on the left side of the box body 1. The front side of the door frame 12 is fixedly installed with a handle 13. The door frame 12 is rotatably installed with the box body 1 through a hinge. Through the cooperation between the door frame 12 and the handle 13, when the motor 71 is damaged, the handle 13 can be pulled outward, and the handle 13 will open the door frame 12, and finally the damaged motor 71 can be repaired.

[0032] Working principle: First, the steel bar to be bent can be placed on the box 1, and then the rotating block 9 can be rotated. The rotation of the rotating block 9 drives the rotating disk 8 to rotate, and the rotation of the rotating disk 8 drives the screw 68 to rotate. The rotation of the screw 68 drives the triangular block 67 to move toward the back, and the triangular block 67 moves toward the back and drives the connecting plate 61 to move toward the back. The connecting plate 61 will drive the second limit block 65 to move toward the back. At this time, the connecting rod 66 will change from a horizontal state to an inclined state. At this time, the U-shaped frame 62 and the splint 63 will be squeezed by the connecting rod 66. At this time, the U-shaped frame 62 and the splint 63 will move toward the back, so that the splint 63 will contact the surface of the steel bar, thereby limiting the steel bar. Finally, the motor 71 can be started, and the output end of the motor 71 drives the small gear 74 to rotate. The small gear 74 rotates to drive the large gear 73 to rotate. The large gear 73 rotates to drive the connecting rod 5 and the disc 4 to rotate, so that the steel bar on the box 1 can be bent.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steel bar bending machine for civil engineering, comprising a housing (1), characterized in that: The four corners of the bottom of the box (1) are fixedly mounted with mounting blocks (2), and rollers (3) are rotatably mounted on the outer sides of the mounting blocks (2). A disc (4) is provided on the top of the box (1), and a connecting rod (5) is fixedly mounted on the bottom of the disc (4). The bottom of the connecting rod (5) passes through the interior of the box (1). A limiting component (6) for tightening the steel bars is provided on the top of the box (1), and a rotating component (7) for bending the steel bars is provided inside the box (1).

2. A steel bar bending machine for civil engineering according to claim 1, characterized in that: The rotating assembly (7) comprises a motor (71), a placement plate (72) is fixedly mounted on the bottom of the motor (71), the placement plate (72) is fixedly mounted inside the box (1), a large gear (73) is fixedly mounted on the bottom of the connecting rod (5), a small gear (74) is fixedly mounted on the output end of the box (1), and the large gear (73) and the small gear (74) are meshed.

3. The steel bar bending machine for civil engineering according to claim 1, characterized in that: The limiting assembly (6) comprises a connecting plate (61), the bottom of the connecting plate (61) contacts the top of the box body (1), a U-shaped frame (62) is provided on the rear side of the box body (1), a clamping plate (63) is rotatably installed inside the U-shaped frame (62), a first limiting block (64) is fixedly installed at the four corners of the front of the U-shaped frame (62), a second limiting block (65) is fixedly installed on both sides of the top of the connecting plate (61), a connecting rod (66) is provided on both sides of the top of the connecting rod (61), the outer side of the top of the connecting rod (66) is rotatably installed with the inner side of the first limiting block (64), and the inner side of the bottom of the connecting rod (66) is rotatably installed with the second limiting block (65) through an axle pin.

4. A steel bar bending machine for civil engineering according to claim 3, characterized in that: A triangular block (67) is fixedly mounted on the top of the connecting plate (61), a screw rod (68) is fixedly and rotatably mounted on the front side of the triangular block (67), a rectangular plate (69) is fixedly mounted on the front side of the top of the box body (1), and the front end of the screw rod (68) passes through the front side of the rectangular plate (69) and is threadedly mounted on the rectangular plate (69).

5. The steel bar bending machine for civil engineering according to claim 4, characterized in that: A rotating disk (8) is fixedly mounted on the front end of the screw rod (68), and a rotating block (9) is fixedly mounted on the surface of the rotating disk (8).

6. The steel bar bending machine for civil engineering according to claim 1, characterized in that: A clamping ring (10) is provided on the surface of the disc (4), a bolt (11) is threadedly mounted on the top of the clamping ring (10), and the bottom of the bolt (11) penetrates into the interior of the disc (4).

7. The steel bar bending machine for civil engineering according to claim 1, characterized in that: Two sets of door frames (12) are provided on the left side of the box body (1), and handles (13) are fixedly installed on the front sides of the door frames (12). The door frames (12) are rotatably installed with the box body (1) through hinges.

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