Modularized diaphragm wall reinforcement cage workbench capable of being rapidly mounted and dismounted

Abstract

The invention belongs to the technical field of building equipment, and particularly relates to a modular diaphragm wall reinforcement cage worktable capable of being quickly mounted and dismounted, which comprises a main worktable, and a standby worktable is arranged on one side of the main worktable and is used for prolonging the size of the main worktable; the main workbench is connected with the standby workbench through a connecting mechanism; when adjustment is needed, firstly, the working height is set through a gradienter, then a rotary knob is rotated clockwise, a rotary rod is driven to rotate through the rotary knob, a second bevel gear is driven to rotate through the rotary rod, a first bevel gear is driven to rotate through the second bevel gear, and a first lead screw is driven to rotate through the first bevel gear; the first lead screw drives the lifting column to move downwards until the lifting column reaches the set height of the gradienter, work at different heights is facilitated, each corner of the main workbench and each corner of the standby workbench can be adjusted to be in the horizontal state, and the welding quality of the reinforcement cage is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of building equipment technology, specifically a modular, quick-installation and disassembly diaphragm wall steel cage workbench. Background Technology

[0002] Diaphragm walls are widely used in underground engineering projects such as urban rail transit and deep foundation pits for super high-rise buildings. As the core load-bearing skeleton, the processing accuracy and efficiency of the steel cage directly affect the project quality and schedule. However, traditional steel cage processing workbenches are mostly fixed structures with concrete foundations or welded steel supports, which have defects such as low disassembly and assembly efficiency, poor versatility, weak site adaptability, poor turnover, and insufficient precision and safety. They can no longer meet the development needs of modern underground engineering for "rapid construction, green cost reduction, and high precision". Therefore, the development of modular diaphragm wall steel cage processing workbenches that can be quickly installed and disassembled has become a key direction for solving industry pain points and promoting the upgrading of diaphragm wall construction technology.

[0003] In existing technologies, workbenches are mostly fixed structures with concrete foundations or welded steel supports. At the selected construction site, the ground is first preliminarily cleaned and leveled. Then, according to design requirements, a foundation platform is formed by pouring concrete, or a steel support structure is welded and assembled on-site as a support system. These structures are permanent facilities that are either formed in one piece or fixed on-site. After the foundation or support is completed, steel plates, wooden boards, or other load-bearing panels are laid on top to form the work surface for processing the rebar cage. Next, the level of the workbench is checked using tools such as a level; if imbalance is found, it is raised or lowered again. After the construction is complete, the rebar cage frame is placed on the workbench for welding.

[0004] Currently, in the face of complex and ever-changing construction site ground conditions, such as unevenness and slopes, manual leveling and elevation are often required. However, manual operation makes it difficult to guarantee flatness and levelness, easily resulting in problems such as potholes and tilting, which in turn affects the balance of the workbench. This imbalance can cause the rebar cage to tilt during welding, not only reducing the processing quality of the rebar cage but also posing certain safety hazards.

[0005] Therefore, the present invention provides a modular, quick-installation and disassembly diaphragm wall reinforcement cage workbench. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A modular, quick-installation and disassembly diaphragm wall rebar cage workbench, comprising a main workbench, with a spare workbench on one side of the main workbench to extend the size of the main workbench; the main workbench and the spare workbench are connected by a connecting mechanism; both the main workbench and the spare workbench are equipped with a lifting mechanism, a clamping mechanism, an adjusting mechanism, and a welding assembly of the same structure; the lifting mechanism includes four fixed tubes fixed to the bottom of the main workbench, with a lifting column slidably connected to the bottom of each fixed tube; a first lead screw is rotatably connected to each fixed tube via a bearing; a first bevel gear is fixedly connected to the top of each first lead screw; a rotating rod is rotatably connected to each fixed tube; a knob is fixedly connected to one end of each rotating rod; and a second bevel gear is fixedly connected to the other end of each rotating rod, with the second bevel gear meshing with the first bevel gear; a groove is provided at the bottom of each lifting column, and a retractable caster is provided within each groove.

[0008] Preferably, the bottom end of each lifting column is rotatably connected to a second lead screw via a bearing, the top of each second lead screw is fixedly connected to a square rod, the bottom of each first lead screw is provided with a square groove, and the square rod is inserted into the square groove; the outer side of each second lead screw is threadedly connected to a lifting frame, the bottom of each lifting frame is fixedly connected to a mounting base, and the moving wheels are rotatably connected to the mounting base via a rotating shaft.

[0009] Preferably, two sliding columns are fixedly connected to the top inner wall of each groove, and the sliding columns are respectively located on both sides of the second lead screw. The lifting frame is slidably connected on the two sliding columns.

[0010] Preferably, the connecting mechanism includes positioning pins rotatably connected to the two side walls of the main worktable, each positioning pin having a rotating plate inserted therein, each positioning pin having a fastening bolt fixed to its outer wall, and each fastening bolt having a washer fitted on it; each spare worktable has a limit plate fixed to its side wall, and each rotating plate is fitted inside the limit plate.

[0011] Preferably, each of the limiting plates has a fixed frame fixedly connected to its outer wall, and each fixed frame has a pin sleeved on it. One end of each pin is rotatably connected to a rotating handle via a pin shaft, and the other end of each pin is inserted into the side wall of the spare workbench through a socket. A second spring is sleeved on the outer side of each pin. Both the rotating plate and the limiting plate have multiple positioning holes with the same size as the sockets.

[0012] Preferably, each of the fixed frames has a fixed sleeve fixedly connected to its outer wall, an L-shaped plate slidably connected to each fixed sleeve, two sliding rods fixedly connected to the side wall of each fixed sleeve, the sliding rods slidably connected to the L-shaped plate, a third spring sleeved on each sliding rod, and the distance between the bottom of the L-shaped plate and the top of the fixed frame is equal to the width of the rotating handle.

[0013] Preferably, the welding assembly includes three vertical H-beams inserted on the main workbench, with multiple horizontal H-beams welded between the two vertical H-beams closest to the standby workbench; and multiple diagonal H-beams welded between the two vertical H-beams furthest from the standby workbench, with multiple mutually perpendicular reinforcing H-beams welded onto the diagonal H-beams.

[0014] Preferably, the clamping mechanism includes multiple second fixing plates fixed to the two side walls of the main worktable, with guide rods fixed between two adjacent second fixing plates on the same side, and two third fixing plates fixed to the two side walls of the main worktable. The third fixing plates are rotatably connected to a bidirectional lead screw via bearings, and a rotating block is fixed to the top of each bidirectional lead screw. Two arc-shaped plates are threaded onto each bidirectional lead screw, and both ends of the arc-shaped plates are slidably connected to the guide rods.

[0015] Preferably, the adjustment mechanism comprises two identical main worktables, which are slidably connected by two sliding plates. The sliding plates have multiple slots, and a rod is inserted and fixed into each slot. One end of the rod extends to the outside of the main worktable.

[0016] Preferably, a first fixing plate is fixedly connected to the side wall of the main worktable located at the free end of the slide plate, a sleeve is fixedly connected to the bottom of the first fixing plate, a connecting rod is slidably connected to the bottom end of the sleeve, a first spring is fixedly connected between the connecting rod and the first fixing plate, and the first spring is located inside the sleeve; a retaining seat is fixedly connected to the bottom of the connecting rod, and the bottom of the retaining seat is inserted and engaged with one end of the insert rod.

[0017] The beneficial effects of this invention are as follows: 1. The modular, quick-installation and disassembly diaphragm wall rebar cage workbench of the present invention features a lifting mechanism. When adjustment is needed, the working height is first set using a level. Then, by rotating a knob clockwise, a rotating rod is driven to rotate, which in turn drives a second bevel gear to rotate. The second bevel gear then drives a first bevel gear to rotate, which in turn drives a first lead screw to rotate. The first lead screw then drives the lifting column downward until the set height of the level is reached. This not only facilitates work at different heights but also allows for the adjustment of each corner of the main workbench and the backup workbench to a level state, ensuring the welding quality of the rebar cage.

[0018] 2. The modular, quick-installation and disassembly diaphragm wall rebar cage workbench of the present invention utilizes the cooperation of a first and second lead screw. By rotating a knob counterclockwise, the knob drives a rotating rod, which in turn drives a second bevel gear. This second bevel gear drives a first bevel gear, which in turn drives the first lead screw. The first lead screw then drives the lifting column upwards until the square rod is inserted into the square groove. Continuing to rotate, the first lead screw drives the square rod, which in turn drives the second lead screw. Since the helical directions of the first and second lead screws are opposite, the second lead screw drives the lifting frame downwards, which in turn drives the mounting base downwards until the moving wheel extends out of the groove. When the moving wheel needs to retract, rotating the knob clockwise first completes the upward movement of the moving wheel into the groove. At this point, the square groove of the first lead screw separates from the square rod. Continuing to rotate only raises the lifting column and no longer affects the moving wheel. The switching between the moving wheel and the lifting column improves the usability of the main workbench.

[0019] 3. The modular, quick-installation and disassembly diaphragm wall reinforcement cage workbench of the present invention, through the setting of a connection mechanism, when connection is required, inserts the rotating plate onto the positioning pin, then places a shim, the size of which matches the positioning pin to prevent the positioning pin from falling off, and finally installs the rotating plate by tightening the bolts and nuts. When a spare workbench needs to be installed, the rotating plate is rotated to the inside of the limiting plate and inserted into the limiting plate to achieve connection; when the spare workbench needs to be disassembled, the nuts and shims can be removed in sequence to remove the rotating plate.

[0020] 4. The modular, quick-installation and disassembly diaphragm wall rebar cage workbench of this invention features an adjustment mechanism. Two main workbenches are slidably connected via two sliding plates. During welding, when the dimensions of the two main workbenches need to be adjusted according to the rebar cage size, the two main workbenches are moved to the appropriate position with the assistance of casters. Then, insert rods are inserted, and these rods, through insertion sockets, fix the sliding plates, thus achieving the function of fixing the two main workbenches. When disassembling the rebar cage, the two main workbenches are pulled outwards until the vertical I-beams are removed from the main workbenches, allowing for quick disassembly. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the main workbench in this invention; Figure 3 This is a cross-sectional view of the fixed tube and the lifting column in this invention; Figure 4This is a schematic diagram of the mounting base in this invention; Figure 5 This is a schematic diagram of the skateboard structure in this invention; Figure 6 This is a cross-sectional view of the sleeve and connecting rod in this invention; Figure 7 This is a schematic diagram of the arc-shaped plate in this invention; Figure 8 This is a schematic diagram of the positioning pin in this invention; Figure 9 This is a schematic diagram of the rotating plate in this invention; Figure 10 This is a schematic diagram of the insert and fixing sleeve in this invention; In the diagram: 1. Main workbench; 11. Spare workbench; 12. Vertical I-beam; 13. Horizontal I-beam; 14. Connecting I-beam; 15. Diagonal I-beam; 16. Reinforcing I-beam; 2. Fixed pipe; 21. Lifting column; 22. First bevel gear; 23. Second bevel gear; 24. First lead screw; 25. Rotating rod; 26. Knob; 27. Groove; 271. Mounting base; 272. Moving wheel; 273. Lifting frame; 274. Sliding column; 275. Second lead screw; 276. Square rod; 3. Slide plate; 31. Socket; 32. Insert rod; 33. Card seat; 34. First fixing plate; 35. Sleeve; 36. Connecting rod; 37. First spring; 4. Arc plate; 41. Second fixing plate; 42. Guide rod; 43. Third fixing plate; 44. Two-way lead screw; 45. Rotating block; 5. Positioning pin; 51. Washer; 52. Fastening bolt; 53. Rotating plate; 6. Limiting plate; 61. Insert post; 62. Fixing frame; 63. Second spring; 64. Rotating handle; 65. L-shaped plate; 66. Fixing sleeve; 67. Sliding rod; 68. Third spring. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 10As shown in the embodiment of the present invention, a modular, quick-installation and disassembly diaphragm wall reinforcement cage workbench includes a main workbench 1, with a spare workbench 11 on one side of the main workbench 1 to extend the size of the main workbench 1; the main workbench 1 and the spare workbench 11 are connected by a connecting mechanism; both the main workbench 1 and the spare workbench 11 are equipped with a lifting mechanism, a clamping mechanism, an adjusting mechanism, and welding components of the same structure; the lifting mechanism includes four fixed pipes 2 fixed to the bottom of the main workbench 1, and the bottom of the fixed pipes 2... Each of the fixed tubes 2 is slidably connected with a lifting column 21. Each of the fixed tubes 2 is rotatably connected to a first lead screw 24 via a bearing. The top end of each first lead screw 24 is fixedly connected to a first bevel gear 22. Each of the fixed tubes 2 is rotatably connected to a rotating rod 25. One end of each rotating rod 25 is fixedly connected to a knob 26, and the other end of each rotating rod 25 is fixedly connected to a second bevel gear 23. The second bevel gear 23 meshes with the first bevel gear 22. The bottom of each lifting column 21 is provided with a groove 27, and each groove 27 is provided with a retractable movable wheel 272.

[0025] The lifting mechanism provided by this invention is used to adjust the height of the main workbench 1 and the standby workbench 11 to achieve a balanced state. When adjustment is needed, the working height is first set by a level, and then the knob 26 is rotated clockwise. The knob 26 drives the rotating rod 25 to rotate, which in turn drives the second bevel gear 23 to rotate. The second bevel gear 23 drives the first bevel gear 22 to rotate, which in turn drives the first lead screw 24 to rotate. The first lead screw 24 drives the lifting column 21 to move downward until the set height of the level is reached. This not only facilitates work at different heights, but also makes it easy to adjust each corner of the main workbench 1 and the standby workbench 11 to a horizontal state, ensuring the welding quality of the steel cage. The splicing layout can be flexibly adjusted according to the narrow construction space in the city, without the need for complicated site leveling, breaking through the dependence of traditional workbench on fixed and level sites. The main workbench 1 and the backup workbench 11 have the same structure, but the backup workbench 11 is used to extend the size of the main workbench 1. During operation, there can be one main workbench 1 or multiple backup workbench 11s spliced ​​together to complete the welding of steel cages of different sizes. The main workbench 1 and the backup workbench 11 have the same structure, which makes it easy to achieve the same functional effect in different modules. In addition, during the movement, the moving wheel 272 extends out of the groove 27 and contacts the ground, thereby achieving the effect of rapid movement. When adjusting the balance, the moving wheel 272 needs to be retracted into the groove 27, and the main worktable 1 and the spare worktable 11 are supported by the lifting column 21 to prevent deviation and shaking during the welding process.

[0026] like Figure 3 and Figure 4As shown, the bottom end of each lifting column 21 is rotatably connected to a second lead screw 275 via a bearing. The top of each second lead screw 275 is fixedly connected to a square rod 276. The bottom of each first lead screw 24 is provided with a square groove, and the square rod 276 is inserted into the square groove. The outer side of each second lead screw 275 is threadedly connected to a lifting frame 273. The bottom of each lifting frame 273 is fixedly connected to a mounting base 271. The moving wheels 272 are rotatably connected to the mounting base 271 via a rotating shaft.

[0027] The second lead screw 275 provided by this invention is used to realize the extension and retraction movement of the movable wheel 272. When extension is required, the knob 26 is rotated counterclockwise, which drives the rotating rod 25 to rotate. The rotating rod 25 drives the second bevel gear 23 to rotate, which in turn drives the first bevel gear 22 to rotate. The first bevel gear 22 drives the first lead screw 24 to rotate, which in turn drives the lifting column 21 to move upward until the square rod 276 is inserted into the square slot, so that the square rod 276 and the first lead screw 24 are engaged. Continuing to rotate, the first lead screw 24 drives the square rod 276 to rotate, which in turn drives the lifting column 21 to move upward until the square rod 276 is inserted into the square slot, so that the square rod 276 and the first lead screw 24 are engaged. Continuing to rotate, the square rod 276 is driven to move upward. The second lead screw 275 rotates. Since the helical directions of the first lead screw 24 and the second lead screw 275 are opposite, the second lead screw 275 drives the lifting frame 273 to move downward, and the lifting frame 273 drives the mounting base 271 to move downward until the moving wheel 272 extends out of the groove 27. When the moving wheel 272 needs to retract, the rotating block 45 is rotated clockwise to first complete the upward movement of the moving wheel 272 into the groove 27. At this time, the square groove of the first lead screw 24 separates from the square rod 276. Continuing to rotate will only raise the lifting column 21 and will no longer affect the moving wheel 272. By switching between the moving wheel 272 and the lifting column 21, the usability of the main worktable 1 is improved.

[0028] like Figure 3 and Figure 4 As shown, two sliding columns 274 are fixedly connected to the top inner wall of the groove 27. The sliding columns 274 are respectively located on both sides of the second lead screw 275. The lifting frame 273 is slidably connected on the two sliding columns 274.

[0029] When the sliding column 274 provided by the present invention is in use, the lifting frame 273 moves while the lifting column 21 slides on the sliding column 274, and the sliding column 274 limits the lifting frame 273 to move in the vertical direction.

[0030] like Figure 8 and Figure 9As shown, the connecting mechanism includes positioning pins 5 rotatably connected to the two side walls of the main workbench 1. Each positioning pin 5 is fitted with a rotating plate 53. Each positioning pin 5 is fixedly connected to the outer wall of the positioning pin 5 with a fastening bolt 52. Each fastening bolt 52 is fitted with a washer 51. Each side wall of the spare workbench 11 is fixedly connected to a limiting plate 6. Each rotating plate 53 is fitted into the inner side of the limiting plate 6.

[0031] The connecting mechanism provided by this invention is used to connect the main workbench 1 and the spare workbench 11. When connection is required, the rotating plate 53 is inserted into the positioning pin 5, and then the shim 51 is placed. The size of the shim 51 matches the positioning pin 5 to prevent the positioning pin 5 from falling off. Finally, the rotating plate 53 is installed by tightening the bolt 52 and the nut. When the spare workbench 11 needs to be installed, the rotating plate 53 is rotated to the inside of the limiting plate 6 and inserted into the limiting plate 6 to achieve connection. When the spare workbench 11 needs to be disassembled, the nut and the shim 51 can be removed in sequence to remove the rotating plate 53.

[0032] like Figure 10 As shown, each of the limiting plates 6 has a fixed bracket 62 fixedly attached to its outer wall. Each fixed bracket 62 is fitted with a pin 61. One end of each pin 61 is rotatably connected to a rotating handle 64 via a pin. The other end of each pin 61 is inserted into the side wall of the spare workbench 11 through a socket. A second spring 63 is fitted on the outer side of each pin 61. Both the rotating plate 53 and the limiting plate 6 have multiple positioning holes with the same size as the sockets.

[0033] The insertion post 61 provided by this invention is used to fix the rotating plate 53, the limiting plate 6, and the spare workbench 11 together. When fixing is required, the rotating handle 64 needs to be rotated towards the fixing frame 62. The rotating handle 64 rotates from the original vertical state to the horizontal state, lowering the center of gravity. This causes the insertion post 61 to be pressed by the pin, and the insertion post 61 moves towards the spare workbench 11 until it is inserted into the insertion hole through the positioning hole. When disassembly is required, the rotating handle 64 needs to be rotated away from the fixing frame 62. The rotating handle 64 rotates from the original horizontal state to the vertical state, raising the center of gravity. Under the action of the second spring 63, the insertion post 61 returns to its original position and moves away from the spare workbench 11, pulling away from the insertion hole and the positioning hole of the rotating plate 53. This releases the fixing of the rotating plate 53, facilitating the removal of the rotating plate 53. The setting of the positioning hole and the insertion hole also facilitates flexible adjustment of the size of the reinforcing cage.

[0034] like Figure 10As shown, each of the fixed sleeves 66 is fixedly connected to the outer wall of the fixed frame 62, and each of the fixed sleeves 66 is slidably connected to an L-shaped plate 65. Each of the fixed sleeves 66 has two sliding rods 67 fixedly connected to its side wall. Each of the sliding rods 67 is slidably connected to the L-shaped plate 65, and each of the sliding rods 67 is fitted with a third spring 68. The distance between the bottom of the L-shaped plate 65 and the top of the fixed frame 62 is equal to the width of the rotating handle 64.

[0035] The L-shaped plate 65 provided by this invention prevents the rotating handle 64 from automatically springing back under external force, thus losing its fixation on the rotating plate 53. During the rotation of the rotating handle 64, the L-shaped plate 65 needs to be pushed to one side, and the L-shaped plate 65 slides on the sliding rod 67 until it leaves the rotating handle 64. At this time, the third spring 68 is stretched, and then the rotating handle 64 is rotated. When it is rotated to a horizontal state, the L-shaped plate 65 is released. Under the action of the third spring 68, the L-shaped plate 65 quickly returns to its original position, thus fixing the rotating handle 64.

[0036] like Figure 1 and Figure 2 As shown, the welding assembly includes three vertical H-beams 12, which are inserted into the main workbench 1. Multiple horizontal H-beams 13 are welded between the two vertical H-beams 12 closest to the spare workbench 11. Multiple diagonal H-beams 15 are welded between the two vertical H-beams 12 furthest from the spare workbench 11, and multiple mutually perpendicular reinforcing H-beams 16 are welded onto the diagonal H-beams 15.

[0037] When using the welding assembly provided by this invention, firstly, the vertical I-beams 12 are neatly arranged at equal intervals on the main workbench 1 or the spare workbench 11. The horizontal I-beams 13 are welded to the vertical I-beams to ensure the stability of the workbench. Then, the diagonal I-beams 15 are installed and fixed to the main workbench 1 or the spare workbench 11 by welding with reinforcing bars. Then, two mutually perpendicular reinforcing I-beams 16 of different lengths are welded to the diagonal I-beams 15. The two adjacent vertical I-beams 12 of the main workbench 1 and the spare workbench 11 are welded together by multiple connecting I-beams 14, and the welding of the reinforcing cage can then begin.

[0038] like Figure 2 and Figure 7 As shown, the clamping mechanism includes multiple second fixing plates 41 fixedly connected to the two side walls of the main worktable 1. A guide rod 42 is fixedly connected between two adjacent second fixing plates 41 on the same side. Two third fixing plates 43 are fixedly connected to the two side walls of the main worktable 1. A bidirectional lead screw 44 is rotatably connected between the third fixing plates 43 through bearings. A rotating block 45 is fixedly connected to the top of the bidirectional lead screw 44. Two arc-shaped plates 4 are threadedly connected to the bidirectional lead screw 44. Both ends of the arc-shaped plates 4 are slidably connected to the guide rod 42.

[0039] The clamping mechanism provided by this invention is used to fix the vertical I-beam 12. After the vertical I-beam 12 is inserted, the rotating block 45 needs to be rotated. The rotating block 45 drives the bidirectional lead screw 44 to rotate. The bidirectional lead screw 44 drives the two arc plates 4 to move in the direction of the vertical I-beam 12 until the vertical I-beam 12 is clamped and fixed. During the movement of the arc plates 4, the vertical I-beam 12 slides on the guide rod 42. The guide rod 42 limits the movement of the arc plates 4 in the horizontal direction.

[0040] like Figure 5 As shown, the adjustment mechanism consists of two identical main worktables 1, and the two main worktables 1 are slidably connected by two slide plates 3. The slide plates 3 are provided with multiple slots 31, and the slots 31 are fixed by inserting rods 32. One end of the inserting rods 32 extends to the outside of the main worktable 1.

[0041] The adjustment mechanism provided by this invention is used to adjust the width of the main workbench 1 during use. The two main workbench 1 are slidably connected by two sliding plates 3. During welding, when it is necessary to adjust the size of the two main workbench 1 according to the size of the rebar cage, the two main workbench 1 are moved to the appropriate position with the assistance of the moving wheels 272. Then, the insert rod 32 is inserted, and the insert rod 32 is fixed to the sliding plate 3 through the insertion port 31, thereby realizing the function of fixing the two main workbench 1. When it is necessary to disassemble the rebar cage, the two main workbench 1 need to be pulled outward until the vertical I-beam 12 is pulled off the main workbench 1, and the disassembly can be completed quickly.

[0042] like Figure 6 As shown, a first fixing plate 34 is fixedly connected to the side wall of the main worktable 1 located at the free end of the slide plate 3. A sleeve 35 is fixedly connected to the bottom of the first fixing plate 34. A connecting rod 36 is slidably connected to the bottom end of the sleeve 35. A first spring 37 is fixedly connected between the connecting rod 36 and the first fixing plate 34. The first spring 37 is located inside the sleeve 35. A retainer 33 is fixedly connected to the bottom of the connecting rod 36. The bottom of the retainer 33 is inserted and engaged with one end of the insert rod 32.

[0043] The card holder 33 provided by the present invention is used to fix the insertion rod 32. When the insertion rod 32 is inserted into the socket 31, the card holder 33 needs to be lifted upward. The card holder 33 drives the connecting rod 36 to move upward. The connecting rod 36 compresses the first spring 37, thereby making it easier to control the card holder 33 in a position away from the socket 31, so as to facilitate the insertion of the insertion rod 32. After the insertion is completed, the card holder 33 needs to be released. Under the action of the first spring 37, the connecting rod 36 is driven to reset. The connecting rod 36 drives the card holder 33 to reset, thereby quickly fixing the insertion rod 32.

[0044] Working principle: When adjustment is required, first set the working height using a level, then rotate the knob 26 clockwise. The knob 26 drives the rotating rod 25 to rotate, which in turn drives the second bevel gear 23 to rotate. The second bevel gear 23 drives the first bevel gear 22 to rotate, which in turn drives the first lead screw 24 to rotate. The first lead screw 24 then drives the lifting column 21 to move downward until the set height of the level is reached. This not only facilitates work at different heights but also makes it easy to adjust each corner of the main worktable 1 and the spare worktable 11 to a horizontal state, ensuring the welding quality of the reinforcing cage. When extension is required, the knob 26 is rotated counterclockwise. The knob 26 rotates the rotating rod 25, which in turn rotates the second bevel gear 23. The second bevel gear 23 then rotates the first bevel gear 22, which in turn rotates the first lead screw 24. The first lead screw 24 then moves the lifting column 21 upwards until the square rod 276 is inserted into the square slot. Continuing to rotate, the first lead screw 24 rotates the square rod 276, which in turn rotates the second lead screw 275. Because the first lead screw 24 and the second lead screw 275... Since the spiral direction of 5 is opposite, the second lead screw 275 drives the lifting frame 273 to move downward, and the lifting frame 273 drives the mounting base 271 to move downward until the moving wheel 272 extends out of the groove 27. When the moving wheel 272 needs to retract, the rotating block 45 is rotated clockwise to first complete the upward movement of the moving wheel 272 into the groove 27. At this time, the square groove of the first lead screw 24 separates from the square rod 276. Continuing to rotate will only raise the lifting column 21 and will no longer affect the moving wheel 272. By switching between the moving wheel 272 and the lifting column 21, the usability of the main worktable 1 is improved.

[0045] When connection is required, insert the rotating plate 53 onto the positioning pin 5, then place the washer 51, ensuring that the size of the washer 51 matches the positioning pin 5 to prevent the positioning pin 5 from falling off. Finally, tighten the bolt 52 and nut to install the rotating plate 53. When the spare workbench 11 needs to be installed, rotate the rotating plate 53 to the inside of the limiting plate 6 and insert it into the limiting plate 6 to achieve connection. When the spare workbench 11 needs to be disassembled, remove the nut and washer 51 in sequence to remove the rotating plate 53.

[0046] First, the vertical I-beams 12 are neatly arranged at proportional intervals and inserted into the main workbench 1 or the spare workbench 11. The horizontal I-beams 13 are welded to the vertical I-beams to ensure the stability of the workbench. Then, the diagonal I-beams 15 are installed and fixed to the main workbench 1 or the spare workbench 11 by welding with reinforcing bars. Then, two mutually perpendicular reinforcing I-beams 16 of different lengths are welded to the diagonal I-beams 15. The two adjacent vertical I-beams 12 of the main workbench 1 and the spare workbench 11 are welded together by multiple connecting I-beams 14, and the welding of the reinforcing cage can begin. After the vertical I-beams 12 are inserted, the rotating block 45 is rotated. The rotating block 45 drives the double-acting screw 44 to rotate, and the double-acting screw 44 drives the two arc-shaped plates 4 to move towards the vertical I-beams 12 until the vertical I-beams 12 are clamped and fixed. During the movement of the arc-shaped plates 4, the vertical I-beams 12 slide on the guide rod 42, and the guide rod 42 limits the movement of the arc-shaped plates 4 in the horizontal direction.

[0047] 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 modular, quick-installation and disassembly diaphragm wall reinforcement cage workbench, comprising a main workbench (1), wherein a spare workbench (11) is provided on one side of the main workbench (1) for extending the size of the main workbench (1); the main workbench (1) and the spare workbench (11) are connected by a connecting mechanism; both the main workbench (1) and the spare workbench (11) are provided with a lifting mechanism, a clamping mechanism, an adjusting mechanism and a welding assembly of the same structure; Its features are: The lifting mechanism includes four fixed tubes (2) fixed to the bottom of the main workbench (1). The bottom of each fixed tube (2) is slidably connected to a lifting column (21). Each fixed tube (2) is rotatably connected to a first lead screw (24) through a bearing. The top of each first lead screw (24) is fixedly connected to a first bevel gear (22). Each fixed tube (2) is rotatably connected to a rotating rod (25). One end of each rotating rod (25) is fixedly connected to a knob (26). The other end of each rotating rod (25) is fixedly connected to a second bevel gear (23). The second bevel gear (23) meshes with the first bevel gear (22). The bottom of each lifting column (21) is provided with a groove (27). Each groove (27) is provided with a retractable movable wheel (272).

2. The modular, quick-installation and disassembly diaphragm wall reinforcement cage workbench according to claim 1, characterized in that: The bottom end of each lifting column (21) is rotatably connected to a second lead screw (275) via a bearing. The top of each second lead screw (275) is fixedly connected to a square rod (276). The bottom of each first lead screw (24) is provided with a square groove, and the square rod (276) is inserted into the square groove. The outer side of each second lead screw (275) is threadedly connected to a lifting frame (273). The bottom of each lifting frame (273) is fixedly connected to a mounting base (271). The moving wheels (272) are rotatably connected to the mounting base (271) via a rotating shaft.

3. The modular, rapid installation and disassembly workbench for diaphragm wall reinforcement cages according to claim 2, characterized in that: Two sliding columns (274) are fixedly connected to the top inner wall of the groove (27). The sliding columns (274) are respectively located on both sides of the second lead screw (275). The lifting frame (273) is slidably connected on the two sliding columns (274).

4. A modular, quick-installation and disassembly diaphragm wall reinforcement cage workbench according to claim 3, characterized in that: The connecting mechanism includes positioning pins (5) rotatably connected to the two side walls of the main workbench (1), each positioning pin (5) having a rotating plate (53) inserted therein, each positioning pin (5) having a fastening bolt (52) fixed to the outer wall of the positioning pin (5), and each fastening bolt (52) having a washer (51) sleeved thereon; each spare workbench (11) has a limiting plate (6) fixed to the side wall of the spare workbench (11), and each rotating plate (53) is fitted inside the limiting plate (6).

5. A modular, quick-installation and disassembly diaphragm wall reinforcement cage workbench according to claim 4, characterized in that: A fixing frame (62) is fixedly connected to the outer wall of the limiting plate (6). A plug (61) is sleeved on the fixing frame (62). One end of the plug (61) is rotatably connected to a rotating handle (64) through a pin. The other end of the plug (61) is inserted into the side wall of the spare workbench (11) through a plug hole. A second spring (63) is sleeved on the outside of the plug (61). Multiple positioning holes are opened on the rotating plate (53) and the limiting plate (6), and the size is the same as that of the plug hole.

6. A modular, quick-installation and disassembly diaphragm wall reinforcement cage workbench according to claim 5, characterized in that: A fixing sleeve (66) is fixedly connected to the outer wall of the fixing frame (62). An L-shaped plate (65) is slidably connected to the fixing sleeve (66). Two sliding rods (67) are fixedly connected to the side wall of the fixing sleeve (66). The sliding rods (67) are slidably connected to the L-shaped plate (65). A third spring (68) is sleeved on the sliding rods (67). The distance between the bottom of the L-shaped plate (65) and the top of the fixing frame (62) is equal to the width of the rotating handle (64).

7. A modular, quick-installation and disassembly diaphragm wall reinforcement cage workbench according to claim 6, characterized in that: The welding assembly includes three vertical H-beams (12), which are inserted on the main workbench (1). A plurality of horizontal H-beams (13) are welded between the two vertical H-beams (12) near the spare workbench (11). A plurality of diagonal H-beams (15) are welded between the two vertical H-beams (12) away from the spare workbench (11). A plurality of mutually perpendicular reinforcing H-beams (16) are welded on the diagonal H-beams (15).

8. A modular, quick-installation and disassembly diaphragm wall reinforcement cage workbench according to claim 7, characterized in that: The clamping mechanism includes multiple second fixing plates (41) fixed to the two side walls of the main worktable (1). A guide rod (42) is fixed between two adjacent second fixing plates (41) on the same side. Two third fixing plates (43) are fixed to the two side walls of the main worktable (1). A bidirectional lead screw (44) is rotatably connected between the third fixing plates (43) through a bearing. A rotating block (45) is fixed to the top of the bidirectional lead screw (44). Two arc-shaped plates (4) are threaded onto the bidirectional lead screw (44). Both ends of the arc-shaped plates (4) are slidably connected to the guide rod (42).

9. A modular, quick-installation and disassembly diaphragm wall reinforcement cage workbench according to claim 8, characterized in that: The adjustment mechanism consists of two identical main worktables (1), and the two main worktables (1) are slidably connected by two slide plates (3). Multiple slots (31) are provided on the slide plates (3), and a rod (32) is inserted and fixed in the slots (31). One end of the rod (32) extends to the outside of the main worktable (1).

10. A modular, quick-installation and disassembly diaphragm wall reinforcement cage workbench according to claim 9, characterized in that: A first fixing plate (34) is fixedly connected to the side wall of the main workbench (1) located at the free end of the slide plate (3). A sleeve (35) is fixedly connected to the bottom of the first fixing plate (34). A connecting rod (36) is slidably connected to the bottom end of the sleeve (35). A first spring (37) is fixedly connected between the connecting rod (36) and the first fixing plate (34). The first spring (37) is located inside the sleeve (35). A card seat (33) is fixedly connected to the bottom of the connecting rod (36). The bottom of the card seat (33) is inserted and locked to one end of the insertion rod (32).

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