A reinforcing bar bending device for pipe gallery engineering reinforcing bar installation

Abstract

This invention belongs to the field of rebar bending technology, specifically a rebar bending device for rebar installation in pipe gallery engineering. It includes a workbench with a disc rotatably connected to its top. A clamping seat is fixed to one side of the top of the disc. The clamping seat has several evenly spaced placement slots, each containing a pressure plate. A driving mechanism is located within the clamping seat's inner cavity, enabling the pressure plate to slide up and down. This invention uses the driving mechanism inside the clamping seat to move the pressure plate downwards, clamping and fixing the rebar in the placement slots. This eliminates the need for operators to enter dangerous areas to manually hold the rebar; they can complete the loading and starting operations only within a safe area, fundamentally avoiding the risk of personal injury. Furthermore, the driving mechanism and pressure plate work together to effectively restrain the rebar's movement and warping during bending, solving the problem of insufficient bending angle accuracy caused by uneven force and positional deviation in traditional manual stabilization methods.

Description

Technical Field

[0001] This invention belongs to the field of steel bar bending technology, specifically a steel bar bending device for steel bar installation in pipe gallery engineering. Background Technology

[0002] In the construction of utility tunnels, steel bars are the core load-bearing structure, and their installation quality directly determines the structural stability and service life of the utility tunnel. Steel bar bending is a key process in the installation of utility tunnel steel bars. According to the construction requirements of different parts of the utility tunnel, such as straight walls, arches, and corners, the steel bars must be bent into specific angles and arcs, and must meet strict precision requirements.

[0003] In traditional rebar bending construction, benchtop rebar bending equipment is usually used to bend multiple rebars simultaneously. During the operation, workers need to hold the rebars at close range with both hands to stabilize them. Not only is there a risk of hand injury or cuts due to the rebar rebounding at the moment of bending, but the rebars are also prone to shifting and warping during the bending process, making it difficult to ensure forming accuracy. At the same time, manual holding of the rebars is prone to uneven force and positioning deviation, resulting in large errors in the bending angle, which affects the construction quality.

[0004] Therefore, the present invention provides a steel bar bending device for steel bar installation in pipe gallery engineering. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background, the present invention proposes a steel bar bending device for steel bar installation in pipe gallery engineering.

[0006] The technical solution applicable to solving the technical problem of this invention is as follows: A steel bar bending device for steel bar installation in a pipe gallery project, comprising a workbench, a disc rotatably connected to the top of the workbench, a clamping seat fixedly connected to one side of the top of the disc, a plurality of placement slots evenly opened on the clamping seat, a pressure plate provided in the placement slot, a driving mechanism provided in the inner cavity of the clamping seat, the driving mechanism being able to drive the pressure plate to slide up and down, a fixed sleeve embedded at the top center of the workbench, a lifting seat provided in the fixed sleeve, the top end of the lifting seat extending above the fixed sleeve, two vertical plates symmetrically provided on the top of the lifting seat, a motor fixedly installed in the inner cavity of the workbench, a rotating shaft fixedly connected to the output end of the motor, the top end of the rotating shaft extending above the workbench and fixedly connected to a spur gear, a spur gear two fixedly connected to the bottom end of the disc, the spur gear two meshing with the spur gear one.

[0007] Preferably, the driving mechanism includes a rotating shaft three, a rack one, and a rack two. The rotating shaft three is rotatably connected to the inner cavity of the clamping seat. A spur gear four is fixedly connected to the rotating shaft three. Rack one and rack two are slidably connected to the inner cavity of the clamping seat. Both rack one and rack two are meshed with the spur gear four. The top end of rack one extends above the clamping seat. A sliding groove two is formed on the inner wall of the placement slot, communicating with the inner cavity of the clamping seat. A mounting plate is fixedly connected to the side of rack two away from the spur gear four. A plurality of sliders are fixedly connected to the side of the mounting plate away from the rack. The sliders extend to the outside of the slide groove and are fixedly connected to the pressure plate. The sliders are slidably connected to the slide groove. The bottom of the placement groove is arc-shaped. A limiting component is provided in the inner cavity of the clamping seat. The limiting component can prevent the rotating shaft from deflecting. A limiting rod is fixedly connected to the top of the clamping seat. An ear plate is fixedly connected to the top of the rack. The ear plate is slidably connected to the limiting rod. A spring is fixedly connected between the ear plate and the top of the limiting rod.

[0008] Preferably, the limiting component includes a ratchet gear and a pawl. The ratchet gear is fixedly connected to the rotating shaft three. An annular frame is fixedly connected to the inner cavity of the clamping seat. Two support shafts are symmetrically rotatably connected to the annular frame. Pawls are fixedly connected to the support shafts. Both pawls mesh with the ratchet gear. Torsion springs are sleeved at both ends of the support shafts. A rotating rod is fixedly connected to the end of the support shaft away from the spur gear four. The rotating rod extends to the outside of the clamping seat.

[0009] Preferably, the top of the clamping seat is provided with a vertical groove, which is connected to several placement grooves, and the bottom of the pressure plate is an arc-shaped surface.

[0010] Preferably, the top of the lifting seat is provided with two sets of sliding grooves, and a rotating shaft is rotatably connected to the inner cavity of the lifting seat. A spur gear is fixedly connected to the rotating shaft, and toothed plates are meshed on both sides of the spur gear. A horizontal plate is fixedly connected to the top of each of the two toothed plates, and a pair of sliders is fixedly connected to the horizontal plate. The sliders extend to the top of the lifting seat and are fixedly connected to the bottom of the vertical plate. The sliders are slidably connected to the sliding grooves. A hydraulic cylinder is fixedly installed in the inner cavity of the lifting seat, and the output end of the hydraulic cylinder is fixedly connected to the side wall of one of the toothed plates.

[0011] Preferably, a hydraulic cylinder is fixedly installed in the inner cavity of the workbench. The output end of the hydraulic cylinder extends into the fixed sleeve and is fixedly connected to the bottom of the lifting seat. A plurality of guide grooves are evenly opened in the inner cavity of the fixed sleeve. A plurality of guide blocks are evenly fixedly connected to the bottom of the outer wall of the lifting seat. The guide blocks are slidably connected to the guide grooves.

[0012] Preferably, the outer side of the disc is provided with a scale, the bottom end of the scale is fixedly connected to the top of the worktable, and a pointer is fixedly connected to the side wall of the disc, the pointer being adapted to the scale.

[0013] Preferably, a support frame is fixedly connected to the side wall of the workbench, a scale is fixedly connected to the top of the support frame, one end of the scale is in contact with the outer wall of the fixed sleeve, a movable seat is slidably connected to the scale, and a baffle is fixedly connected to the movable seat.

[0014] Preferably, a boss is fixedly connected to the movable seat, a threaded groove is formed on the boss, a screw is threadedly connected to the threaded groove, the bottom end of the screw extends into the inner cavity of the boss and is fixedly connected to a brake block, the brake block is made of rubber.

[0015] Preferably, the vertical plate has a rounded corner on the side near the clamping seat, and the bottom of the pressure plate has several elastic protrusions evenly fixed.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. The present invention discloses a rebar bending device for rebar installation in pipe gallery engineering. The device uses a drive mechanism inside the clamping seat to drive the pressure plate downward, thereby pressing and fixing the rebar in the placement groove. This eliminates the need for operators to enter dangerous areas to hold the rebar by hand. They can complete the loading and starting operations only in a safe area, thus avoiding the risk of personal injury at the source. In addition, the drive mechanism and the pressure plate work together to effectively restrain the movement and warping of the rebar during the bending process, solving the problem of insufficient bending angle accuracy caused by uneven force and positional deviation in traditional manual stabilization methods.

[0018] 2. The steel bar bending device for steel bar installation in pipe gallery engineering described in this invention uses a hydraulic cylinder to drive the lifting seat and the vertical plate to slide up and down together, which facilitates the picking and placing of steel bars. The hydraulic cylinder, in conjunction with the toothed plate and the spur gear, drives the two vertical plates to slide, thereby fixing the steel bars, avoiding misalignment and uneven local stress, and preventing cracks and deformation of the steel bars at the bending point. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is a schematic diagram of the interior of the workbench of the present invention;

[0022] Figure 3 This is a cross-sectional view of the workbench of the present invention;

[0023] Figure 4 This is a schematic diagram of the disk portion of the present invention;

[0024] Figure 5 This is a schematic diagram of the lifting sleeve of the present invention;

[0025] Figure 6 This is an exploded view of the fixing base of the present invention;

[0026] Figure 7 This is a schematic diagram of the mounting base of the present invention;

[0027] Figure 8 These are cross-sectional views of the spur gear of the present invention at three points;

[0028] Figure 9 This is a cross-sectional view of the ratchet gear in this invention;

[0029] Figure 10 yes Figure 9 A magnified view of a section at point A in the middle;

[0030] Figure 11 This is a schematic diagram of the pressure plate of the present invention;

[0031] Figure 12 This is an exploded view of the ratchet gear in this invention;

[0032] Figure 13 This is a cross-sectional view of the boss in this invention.

[0033] In the diagram: 1. Workbench; 2. Motor; 3. Disc; 4. Shaft 1; 5. Spur Gear 1; 6. Spur Gear 2; 7. Clamping Seat; 8. Hydraulic Cylinder 1; 9. Fixed Sleeve; 10. Lifting Seat; 11. Vertical Plate; 12. Guide Groove; 13. Guide Block; 14. Hydraulic Cylinder 2; 15. Shaft 2; 16. Spur Gear 3; 17. Gear Plate; 18. Horizontal Plate; 19. Slider 1; 20. Slide 1; 21. Placement Groove; 22. Slide 2; 23. Shaft 3; 24. Spur Gear 4; 25. Rack 1; 26. Rack 2; 27. Mounting plate; 28. Slider 2; 29. ​​Pressure plate; 30. Limiting rod; 31. Spring; 32. Ear plate; 33. Ratchet; 34. Ring frame; 35. Support shaft; 36. Pawl; 37. Torsion spring; 38. Rotating rod; 39. Vertical groove; 40. Dial; 41. Pointer; 42. Support frame; 43. Scale; 44. Moving seat; 45. Baffle; 46. Boss; 47. Threaded groove; 48. Screw; 49. Brake block. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] like Figures 1-13As shown in the embodiment of the present invention, a steel bar bending device for steel bar installation in a pipe gallery includes a workbench 1. A disc 3 is rotatably connected to the top of the workbench 1. A clamping seat 7 is fixedly connected to one side of the top of the disc 3. A plurality of placement slots 21 are evenly opened on the clamping seat 7. A pressure plate 29 is provided in the placement slot 21. A driving mechanism is provided in the inner cavity of the clamping seat 7. The driving mechanism can drive the pressure plate 29 to slide up and down. A fixed sleeve 9 is embedded at the top center of the workbench 1. A lifting seat 10 is provided in the fixed sleeve 9. The top end of the lifting seat 10 extends to the top of the fixed sleeve 9. Two vertical plates 11 are symmetrically arranged on the top of the lifting seat 10. A motor 2 is fixedly installed in the inner cavity of the workbench 1. A rotating shaft 4 is fixedly connected to the output end of the motor 2. The top end of the rotating shaft 4 extends to the top of the workbench 1 and is fixedly connected to a spur gear 5. A spur gear 6 is fixedly connected to the bottom end of the disc 3. The spur gear 6 meshes with the spur gear 5.

[0036] This application addresses the issue that in traditional rebar bending construction, benchtop rebar bending equipment is typically used to bend multiple rebars simultaneously. During operation, workers need to hold the rebars close to the work area with both hands, which not only poses safety hazards such as hand injuries and cuts due to rebar rebound during bending, but also makes it difficult to guarantee forming accuracy as the rebars are prone to shifting and warping during bending. Furthermore, manual holding of the rebars can lead to large errors in bending angle due to uneven force and positioning misalignment, affecting construction quality. Therefore, this application utilizes a drive mechanism inside the clamping seat 7 to drive the pressure plate 29 downwards, thereby clamping and fixing the rebars in the placement slot 21. This eliminates the need for operators to enter dangerous areas to hold the rebars, allowing them to complete the loading and starting operations only within a safe area, thus avoiding personal injury risks at the source. In addition, the drive mechanism and pressure plate 29 work together to effectively restrain the shifting and warping of the rebars during bending, solving the problem of insufficient bending angle accuracy caused by uneven force and positioning misalignment in traditional manual holding methods.

[0037] During operation, the worker first places multiple steel bars into the placement slots 21, ensuring that one end of each steel bar passes between the two vertical plates 11. Then, the drive mechanism drives the pressure plate 29 to slide downwards, thereby clamping and fixing the steel bars in the placement slots 21. The motor 2 is then started, which drives the rotating shaft 4 and the spur gear 5 to rotate. This causes the spur gear 6 to rotate the disc 3, which in turn causes the clamping seat 7 to rotate the steel bars in the placement slots 21. In conjunction with the pair of vertical plates 11 on the lifting seat 10, the steel bars are bent. Afterward, the worker only needs to release the pressure plate 29 from the steel bars and remove them from the clamping seat 7.

[0038] The driving mechanism includes a rotating shaft 23, a rack 25, and a rack 26. The rotating shaft 23 is rotatably connected to the inner cavity of the clamping seat 7. A spur gear 24 is fixedly connected to the rotating shaft 23. The rack 25 and rack 26 are slidably connected to the inner cavity of the clamping seat 7, and both rack 25 and rack 26 mesh with the spur gear 24. The top of rack 25 extends above the clamping seat 7. A sliding groove 22 is formed on the inner wall of the placement groove 21, communicating with the inner cavity of the clamping seat 7. A mounting plate 27 is fixedly connected to the side of rack 26 away from the spur gear 24. A plurality of sliders 28 are fixedly connected to the side of the mounting plate 27 away from the rack 26. The sliders 28 extend to the outside of the slide groove 22 and are fixedly connected to the pressure plate 29. The sliders 28 are slidably connected to the slide groove 22. The bottom of the placement groove 21 is arc-shaped. A limiting component is provided in the inner cavity of the clamping seat 7. The limiting component can prevent the rotating shaft 23 from deflecting. A limiting rod 30 is fixedly connected to the top of the clamping seat 7. An ear plate 32 is fixedly connected to the top of the rack 25. The ear plate 32 is slidably connected to the limiting rod 30. A spring 31 is fixedly connected between the ear plate 32 and the top of the limiting rod 30.

[0039] The limiting assembly includes a ratchet 33 and a pawl 36. The ratchet 33 is fixedly connected to the rotating shaft 23. An annular frame 34 is fixedly connected to the inner cavity of the clamping seat 7. Two support shafts 35 are symmetrically rotatably connected to the annular frame 34. Pawls 36 are fixedly connected to the support shafts 35. Both pawls 36 mesh with the ratchet 33. Torsion springs 37 are sleeved at both ends of the support shafts 35. A rotating rod 38 is fixedly connected to the end of the support shaft 35 away from the spur gear 24. The rotating rod 38 extends to the outside of the clamping seat 7.

[0040] During operation, after placing multiple steel bars into the placement slot 21, the worker slides the rack 25 upwards, causing the spur gear 24 to rotate and drive the rack 26 and mounting plate 27 downwards. This, in turn, causes the slider 28 to drive the pressure plate 29 downwards, thus clamping and fixing the steel bars. During this process, the ear plate 32 compresses the spring 31 as the rack 25 slides upwards. Simultaneously, the rotating shaft 23, along with the spur gear 24, drives the ratchet 33 to rotate. The ratchet 33 continuously pushes against the pawl 36 during rotation until the pressure plate 29 clamps and secures the steel bars. When tightened, the pawl 36 locks the ratchet 33 under the action of the torsion spring 37, thereby preventing the spur gear 4 24 from driving the rotating shaft 3 23 to rotate during the bending process of the steel bar. After the steel bar bending operation is completed, the worker drives the support shaft 35 to rotate by rotating the rotating rod 38, so that the pawl 36 disengages from the ratchet 33. The rack 1 25 quickly slides down and resets under the elastic force of the spring 31, so that the spur gear 4 24 drives the rack 2 26 and the mounting plate 27 to slide up, thereby causing the pressure plate 29 to slide up and disengage from the surface of the steel bar, so that the worker can take out the steel bar from the placement groove 21.

[0041] It should be noted that a pull ring is provided on the side of the rack 25 away from the ear plate 32, which makes it easy for workers to pull the rack 25 up and down. The arc-shaped surface at the bottom of the placement groove 21, together with the pressure plate 29, can press and fix steel bars of different sizes to adapt to different construction scenarios.

[0042] The top of the clamping seat 7 is provided with a vertical groove 39, which is connected to several placement grooves 21. The bottom of the pressure plate 29 is an arc-shaped surface.

[0043] During operation, the clamping seat 7 has a vertical groove 39 that communicates with the placement groove 21, which makes it easy for workers to place steel bars into or remove steel bars from the placement groove 21 from the vertical groove 39.

[0044] The top of the lifting seat 10 is provided with two sets of sliding grooves 20. A rotating shaft 15 is rotatably connected in the inner cavity of the lifting seat 10. A spur gear 16 is fixedly connected to the rotating shaft 15. Both sides of the spur gear 16 are meshed with toothed plates 17. The top of each toothed plate 17 is fixedly connected to a horizontal plate 18. A pair of sliders 19 are fixedly connected to the horizontal plate 18. The sliders 19 extend to the top of the lifting seat 10 and are fixedly connected to the bottom of the vertical plate 11. The sliders 19 are slidably connected to the sliding grooves 20. A hydraulic cylinder 14 is fixedly installed in the inner cavity of the lifting seat 10. The output end of the hydraulic cylinder 14 is fixedly connected to the side wall of one of the toothed plates 17.

[0045] A hydraulic cylinder 8 is fixedly installed in the inner cavity of the workbench 1. The output end of the hydraulic cylinder 8 extends into the fixed sleeve 9 and is fixedly connected to the bottom of the lifting seat 10. A plurality of guide grooves 12 are evenly opened in the inner cavity of the fixed sleeve 9. A plurality of guide blocks 13 are evenly fixedly connected to the bottom of the outer wall of the lifting seat 10. The guide blocks 13 are slidably connected to the guide grooves 12.

[0046] It should be further explained that the placement groove 21 is aligned with the central axis of the two vertical plates 11, while the vertical groove 39 is offset from the central axis of the two vertical plates 11. When workers place the steel bars through the vertical groove 39, in order to avoid the vertical plates 11 interfering with the placement of the steel bars, a hydraulic cylinder 18 is set to drive the lifting seat 10 and the vertical plates 11 to slide up and down together, which facilitates the placement and removal of the steel bars. A hydraulic cylinder 2 14, in conjunction with the toothed plate 17 and the spur gear 3 16, can drive the two vertical plates 11 to slide, thereby fixing the steel bars, avoiding misalignment of the steel bars, uneven local stress, and preventing cracks and deformation of the steel bars at the bending points.

[0047] During operation, before placing the reinforcing bars, the worker first uses hydraulic cylinder 8 to slide the lifting seat 10 and the vertical plate 11 downwards together, retracting them into the fixing sleeve 9. This facilitates the reinforcing bars sliding from the vertical groove 39 into the placement groove 21. After the pressure plate 29 clamps and fixes the reinforcing bars vertically, hydraulic cylinder 8 is activated again to slide the lifting seat 10 and the vertical plate 11 upwards onto the surface of the disc 3. At this point, the reinforcing bars are located between the two vertical plates 11. Then, hydraulic cylinder 14 is activated, causing one of the toothed plates 17 to slide, which in turn causes the spur gear 16 to drive the other toothed plate 17. The relative sliding allows the two vertical plates 11 to slide relative to each other under the action of the slider 19, thus clamping and fixing the steel bar in the horizontal direction. This facilitates the subsequent bending operation of the steel bar. After the bending operation is completed, the worker first uses the hydraulic cylinder 2 14 to drive the two vertical plates 11 to slide in opposite directions and move away from each other, releasing the clamping of the steel bar. Then, the hydraulic cylinder 1 8 drives the lifting seat 10 and the vertical plates 11 to slide downward and retract into the fixed sleeve 9. After that, the pressure plate 29 is released from pressing and fixing the steel bar, making it convenient for the worker to quickly take out the bent steel bar from the clamping seat 7.

[0048] The outer side of the disk 3 is provided with a scale 40, the bottom end of the scale 40 is fixedly connected to the top of the workbench 1, and a pointer 41 is fixedly connected to the side wall of the disk 3, the pointer 41 is adapted to the scale 40.

[0049] During operation, the pointer 41 on the disc 3, in conjunction with the scale 40 on the workbench 1, allows the operator to observe the bending angle of the steel bar in real time during the bending operation, facilitating the operator's operation and control.

[0050] A support frame 42 is fixedly connected to the side wall of the workbench 1. A scale 43 is fixedly connected to the top of the support frame 42. One end of the scale 43 is in contact with the outer wall of the fixed sleeve 9. A movable seat 44 is slidably connected to the scale 43. A baffle 45 is fixedly connected to the movable seat 44.

[0051] A boss 46 is fixedly connected to the movable seat 44. A threaded groove 47 is provided on the boss 46. A screw 48 is threadedly connected to the threaded groove 47. The bottom end of the screw 48 extends into the inner cavity of the boss 46 and is fixedly connected to a brake block 49. The brake block 49 is made of rubber.

[0052] During operation, the baffle 45 allows the ends of multiple steel bars to automatically align at the baffle 45 when the worker places them. The sliding seat 44, in conjunction with the scale 43, facilitates the worker to adjust the position of the baffle 45, thereby facilitating the adjustment of the bending point of the steel bars according to the actual situation. After the sliding seat 44 is adjusted, the screw 48 in the threaded groove 47 is rotated, causing the brake block 49 to move downward and contact the surface of the scale 43. Through the friction between the brake block 49 and the scale 43, the sliding seat 44 can be limited, thus facilitating the alignment of the steel bars during placement.

[0053] The vertical plate 11 has a rounded corner on the side near the clamping seat 7, and the bottom of the pressure plate 29 is uniformly fixed with several elastic protrusions.

[0054] During operation, rounded corners are provided on the vertical plate 11 to prevent scratches on the reinforcing bars at the bends, and several elastic protrusions are provided on the pressure plate 29 to enhance the pressing effect of the pressure plate 29 on the reinforcing bars.

[0055] Working principle: Before placing the reinforcing bars, hydraulic cylinder 8 is activated, which drives the lifting seat 10 and vertical plate 11 to slide downwards together, retracting into the fixed sleeve 9. Then, the position of the moving seat 44 on the scale 43 is adjusted according to actual needs. After adjustment, the screw 48 is rotated to drive the brake block 49 to press against the scale 43, thus limiting the movement of the moving seat 44 and preventing the baffle 45 from shifting when the ends of the reinforcing bars are aligned. Next, the worker places multiple reinforcing bars one by one from the vertical groove 39 into the placement groove 21, ensuring that the ends of multiple reinforcing bars are in contact with the baffle 45. The rack 25 is slid upwards, causing the spur gear 24 to rotate and drive the rack 26 and mounting plate 27 to slide downwards, thereby causing the pressure plate 29 to slide downwards, achieving the clamping and fixing of the reinforcing bars. During this process, the ear plate 32 moves with the rack 25. 5. The upward slide compresses the spring 31, and the pawl 36 locks the ratchet 33 under the action of the torsion spring 37, preventing the spur gear 4 24 from driving the rotating shaft 3 23 to rotate during the bending process of the steel bar. At this time, the steel bar is located between the two vertical plates 11. The hydraulic cylinder 2 14 is started, which drives one of the toothed plates 17 to slide, so that the spur gear 3 16 drives the other toothed plate 17 to slide relative to each other. Then, the two vertical plates 11 slide relative to each other under the drive of the slider 1 19 to complete the clamping and fixing of the steel bar in the horizontal direction. After the steel bar is fixed in the vertical and horizontal directions, the motor 2 is started. The motor 2 drives the rotating shaft 1 4 and the spur gear 1 5 to rotate, so that the spur gear 2 6 drives the disc 3 to rotate, so that the clamping seat 7 drives the steel bar in the placement groove 21 to rotate. With the help of the pair of vertical plates 11 on the lifting seat 10, the bending operation of the steel bar is realized.

[0056] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0057] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel bar bending device for steel bar installation in a utility tunnel project, characterized in that: Includes a workbench (1), the top of which is rotatably connected to a disc (3). A clamping seat (7) is fixedly connected to one side of the top of the disc (3). Several placement slots (21) are evenly provided on the clamping seat (7). A pressure plate (29) is provided in the placement slot (21). A driving mechanism is provided in the inner cavity of the clamping seat (7). The driving mechanism can drive the pressure plate (29) to slide up and down. A fixed sleeve (9) is embedded at the center of the top of the workbench (1). A lifting seat (9) is provided in the fixed sleeve (9). 10), the top of the lifting seat (10) extends above the fixed sleeve (9), and two vertical plates (11) are symmetrically provided on the top of the lifting seat (10). A motor (2) is fixedly installed in the inner cavity of the workbench (1). A rotating shaft (4) is fixedly connected to the output end of the motor (2). The top of the rotating shaft (4) extends above the workbench (1) and is fixedly connected to a spur gear (5). A spur gear (6) is fixedly connected to the bottom end of the disc (3). The spur gear (6) meshes with the spur gear (5).

2. The steel bar bending device for steel bar installation in a pipe gallery project according to claim 1, characterized in that: The driving mechanism includes a rotating shaft three (23), a rack one (25), and a rack two (26). The rotating shaft three (23) is rotatably connected in the inner cavity of the clamping seat (7). A spur gear four (24) is fixedly connected to the rotating shaft three (23). A rack one (25) and a rack two (26) are slidably connected in the inner cavity of the clamping seat (7). Both rack one (25) and rack two (26) are meshed with the spur gear four (24). The top end of rack one (25) extends to the top of the clamping seat (7). A sliding groove two (22) is provided on the inner wall of the placement groove (21). The sliding groove two (22) communicates with the inner cavity of the clamping seat (7). A mounting plate (27) is fixedly connected to the side of rack two (26) away from the spur gear four (24). A plurality of sliders (28) are fixedly connected to the side of the mounting plate (27) away from the rack (26). The sliders (28) extend to the outside of the slide groove (22) and are fixedly connected to the pressure plate (29). The sliders (28) are slidably connected to the slide groove (22). The bottom of the placement groove (21) is arc-shaped. A limiting component is provided in the inner cavity of the clamping seat (7). The limiting component can prevent the rotating shaft (23) from deflecting. A limiting rod (30) is fixedly connected to the top of the clamping seat (7). An ear plate (32) is fixedly connected to the top of the rack (25). The ear plate (32) is slidably connected to the limiting rod (30). A spring (31) is fixedly connected between the ear plate (32) and the top of the limiting rod (30).

3. A steel bar bending device for steel bar installation in a pipe gallery project according to claim 2, characterized in that: The limiting assembly includes a ratchet (33) and a pawl (36). The ratchet (33) is fixedly connected to the rotating shaft three (23). An annular frame (34) is fixedly connected to the inner cavity of the clamping seat (7). Two support shafts (35) are symmetrically rotatably connected to the annular frame (34). Pawls (36) are fixedly connected to the support shafts (35). Both pawls (36) mesh with the ratchet (33). Torsion springs (37) are sleeved at both ends of the support shafts (35). A rotating rod (38) is fixedly connected to the end of the support shaft (35) away from the spur gear four (24). The rotating rod (38) extends to the outside of the clamping seat (7).

4. A steel bar bending device for steel bar installation in a pipe gallery project according to claim 3, characterized in that: The top of the clamping seat (7) is provided with a vertical groove (39), which is connected to several placement grooves (21), and the bottom of the pressure plate (29) is an arc-shaped surface.

5. A steel bar bending device for steel bar installation in a pipe gallery project according to claim 4, characterized in that: The top of the lifting seat (10) is provided with two sets of sliding grooves (20). The inner cavity of the lifting seat (10) is rotatably connected to a rotating shaft (15). A spur gear (16) is fixedly connected to the rotating shaft (15). Both sides of the spur gear (16) are meshed with toothed plates (17). The top of the two toothed plates (17) are fixedly connected to a horizontal plate (18). A pair of sliders (19) are fixedly connected to the horizontal plate (18). The sliders (19) extend to the top of the lifting seat (10) and are fixedly connected to the bottom end of the vertical plate (11). The sliders (19) are slidably connected to the sliding grooves (20). A hydraulic cylinder (14) is fixedly installed in the inner cavity of the lifting seat (10). The output end of the hydraulic cylinder (14) is fixedly connected to the side wall of one of the toothed plates (17).

6. A steel bar bending device for steel bar installation in a pipe gallery project according to claim 5, characterized in that: A hydraulic cylinder (8) is fixedly installed in the inner cavity of the workbench (1). The output end of the hydraulic cylinder (8) extends into the fixed sleeve (9) and is fixedly connected to the bottom of the lifting seat (10). Several guide grooves (12) are evenly opened in the inner cavity of the fixed sleeve (9). Several guide blocks (13) are evenly fixed to the bottom of the outer wall of the lifting seat (10). The guide blocks (13) are slidably connected to the guide grooves (12).

7. A steel bar bending device for steel bar installation in a pipe gallery project according to claim 6, characterized in that: The outer side of the disc (3) is provided with a scale (40), the bottom end of the scale (40) is fixed to the top of the workbench (1), and a pointer (41) is fixed to the side wall of the disc (3), the pointer (41) is adapted to the scale (40).

8. A steel bar bending device for steel bar installation in a pipe gallery project according to claim 7, characterized in that: A support frame (42) is fixedly connected to the side wall of the workbench (1). A scale (43) is fixedly connected to the top of the support frame (42). One end of the scale (43) is in contact with the outer wall of the fixed sleeve (9). A movable seat (44) is slidably connected to the scale (43). A baffle (45) is fixedly connected to the movable seat (44).

9. A steel bar bending device for steel bar installation in a pipe gallery project according to claim 8, characterized in that: A boss (46) is fixedly connected to the movable seat (44). A threaded groove (47) is provided on the boss (46). A screw (48) is threadedly connected to the threaded groove (47). The bottom end of the screw (48) extends into the inner cavity of the boss (46) and is fixedly connected to a brake block (49). The brake block (49) is made of rubber.

10. A steel bar bending device for steel bar installation in a pipe gallery project according to claim 9, characterized in that: The vertical plate (11) has a rounded corner on the side near the clamping seat (7), and the bottom of the pressure plate (29) is uniformly fixed with several elastic protrusions.

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