Material hoisting device for bridge engineering construction

Abstract

The invention discloses a material hoisting device for bridge engineering construction, and belongs to the technical field of hoisting devices, the material hoisting device comprises a vehicle body, a rotating platform, a telescopic stand column and a telescopic arm are arranged on the top surface of the vehicle body, a mounting seat is arranged at one end of the telescopic arm, a turnover mechanism is arranged below the mounting seat, and a fixing seat is arranged on the turnover mechanism; and the top surface, the bottom surface, the front surface and the back surface of the fixed seat are provided with an internal expansion type clamping mechanism, an adsorption type clamping mechanism, two lifting hooks and one lifting hook. By arranging the rotating platform, materials in different directions can be conveniently hoisted; the height of the telescopic stand column and the length of the telescopic arm are convenient to adjust; the turnover mechanism drives the fixed seat to turn over, so that the internal expansion type clamping mechanism or the adsorption type clamping mechanism or the lifting hook is located at a working position, and the application range is wide; the internal expansion type clamping mechanism is convenient for hoisting tubular materials, the adsorption type clamping mechanism is convenient for hoisting plate-shaped materials, the lifting hook is used for hoisting other materials, the application range is wide, and the use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting devices, and in particular to a material lifting device for bridge engineering construction. Background Art

[0002] Bridge engineering, a branch of civil engineering, encompasses the entire process of bridge surveying, design, construction, maintenance, and verification, as well as the science and engineering techniques that study these processes. During bridge construction, various materials and equipment, such as rebar, formwork, steel pipes, and precast concrete components, must be moved. Heavy objects, in particular, require cranes or tower cranes to move them to their proper locations.

[0003] The existing lifting devices used in bridge construction have relatively simple functions and mostly use a single hook. When moving materials, operators are required to first secure the materials with ropes before lifting them, which is inconvenient to operate and there is a risk of materials falling. Summary of the Invention

[0004] The purpose of the present invention is to provide a material lifting device for bridge engineering construction, which solves the problem that the existing lifting devices for bridge engineering construction have relatively single functions and require operators to fix the materials with ropes before lifting them when moving materials, which is inconvenient to operate.

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

[0006] The present invention provides a material lifting device for bridge engineering construction, comprising a vehicle body, a rotating platform provided on the top surface of the vehicle body, a telescopic column provided on the top surface of the rotating platform, a telescopic arm provided on the top surface of the telescopic column, a mounting seat provided on one end of the telescopic arm away from the telescopic column, a flip mechanism provided below the mounting seat, a fixed seat provided on the flip mechanism, an internal expansion type clamping mechanism provided on the top surface of the fixed seat, an adsorption type clamping mechanism provided on the bottom surface of the fixed seat, two hooks provided in front of the fixed seat, and one hook provided at the back of the fixed seat.

[0007] Furthermore, the rotating platform includes a box body, which is arranged on the top surface of the vehicle body, a first motor is arranged inside the box body, a driving wheel is arranged on the output shaft of the first motor, a first rotating shaft is arranged on the top surface of the box body, the bottom end of the first rotating shaft extends to the interior of the box body and is connected to the driven wheel, the driving wheel and the driven wheel are connected by a synchronous belt transmission, the top end of the first rotating shaft extends to the top of the box body and is connected to the turntable, and the telescopic column is arranged on the top surface of the turntable.

[0008] Furthermore, the telescopic column includes a first-level column, the bottom end of the first-level column is arranged on the top surface of the turntable, the top of the first-level column is provided with a second-level column, the top of the second-level column is provided with a third-level column, the outside of the first-level column is provided with a first hydraulic cylinder, the piston rod of the first hydraulic cylinder is connected to the second-level column, the outside of the second-level column is provided with a second hydraulic cylinder, the piston rod of the second hydraulic cylinder is connected to the third-level column.

[0009] Furthermore, the telescopic arm includes a first-level support arm, the left end of the first-level support arm is arranged on the top surface of the third-level column, the right side of the first-level support arm is provided with a second-level support arm, the right side of the second-level support arm is provided with a third-level support arm, a third hydraulic cylinder is provided above the first-level support arm, the piston rod of the third hydraulic cylinder is connected to the second-level support arm, a fourth hydraulic cylinder is provided above the second-level support arm, the piston rod of the fourth hydraulic cylinder is connected to the third-level support arm, and the right end of the third-level support arm is provided with the mounting seat.

[0010] Furthermore, the flipping mechanism includes a mounting plate, which is arranged on the bottom surface of the mounting seat, and a first support frame and a second support frame are arranged below the mounting plate, a motor mounting frame is arranged on the left side of the second support frame, a second motor is arranged on the motor mounting frame, and a reducer is arranged at the output end of the second motor, and a second rotating shaft is arranged at the bottom of the first support frame and the second support frame, and the two second rotating shafts are connected to the left and right side surfaces of the fixed seat, and the second rotating shaft located at the bottom of the second support frame is connected to the output end of the reducer.

[0011] Furthermore, a slide rail is provided on the bottom surface of the mounting plate, and sliders matching the slide rails are provided on the top surfaces of the first support frame and the second support frame. A first cylinder is provided on the rear side of the first support frame, and the piston rod of the first cylinder is connected to the second support frame. Four limit blocks are provided on the bottom surface of the mounting plate, and the four limit blocks are respectively provided on the left and right sides of the first support frame and the left and right sides of the second support frame.

[0012] Furthermore, the internal expansion clamping mechanism includes a second cylinder, which is arranged on the top surface of the fixed seat, and a fixed frame is arranged above the second cylinder. The piston rod of the second cylinder passes through the fixed frame and extends to the bottom of the fixed frame. The left and right sides of the fixed frame are hinged with movable frames, and an internal expansion plate is arranged on the outer side of the movable frame. Two connecting rods are arranged on the piston rod of the second cylinder, and the other end of the connecting rod is hinged to the movable frame.

[0013] Furthermore, the inner expansion plate is configured as an arc-shaped plate.

[0014] Furthermore, the adsorption-type clamping mechanism includes a connecting seat, which is arranged on the bottom surface of the fixed seat, and a crossbeam is provided on the bottom surface of the connecting seat, and a plurality of longitudinal beams are provided on the bottom surface of the crossbeam, and a suction cup is provided on the lower part of the longitudinal beam, and the top surfaces of the longitudinal beams on the left and right sides are provided with support plates, and the top of the support plate is provided with a connecting shaft, and clamping claws are provided on the front and rear sides of the connecting shaft, and two groups of third cylinders are provided on the top surface of the longitudinal beam in the middle, and the two groups of third cylinders are arranged side by side in front and back, and each group of the third cylinders includes two left-right symmetrical third cylinders, and the piston rods of the two third cylinders are respectively connected to the left and right clamping claws.

[0015] Furthermore, a group of suction cup mounting plates are provided on both the left and right sides of the longitudinal beam, and each group of the suction cup mounting plates includes a plurality of suction cup mounting plates arranged at equal intervals along the front-to-back direction, and the suction cups are provided on the suction cup mounting plates.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] The present invention drives the telescopic column to rotate by arranging a rotating platform, which is convenient for lifting materials in different directions; the height of the telescopic column and the length of the telescopic arm can be controlled according to actual conditions and are easy to adjust; the fixing seat is driven to flip by the flip mechanism so that different sides of the fixing seat face downward, and the internal expansion clamping mechanism or the adsorption clamping mechanism or the hook is in the working position, and has a wide range of uses; the internal expansion clamping mechanism is convenient for lifting tubular materials, the adsorption clamping mechanism is convenient for lifting plate-shaped materials, and the hook is used to lift other materials, which has a wide range of applications and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a front view of the material lifting device for bridge engineering construction according to the present invention;

[0020] Figure 2 It is a side view of the fixing seat, the internal expansion type clamping mechanism, the adsorption type clamping mechanism, and the hook of the present invention;

[0021] Figure 3 It is a top view of the fixing seat, the internal expansion type clamping mechanism, the adsorption type clamping mechanism, and the hook of the present invention;

[0022] Figure 4 Schematic diagram of the three-dimensional structure of the rotating platform of the present invention;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the internal structure of the rotating platform of the present invention;

[0024] Figure 6It is a schematic diagram of the three-dimensional structure of the telescopic column of the present invention;

[0025] Figure 7 Schematic diagram of the three-dimensional structure of the telescopic arm of the present invention;

[0026] Figure 8 Schematic diagram of the three-dimensional structure of the turning mechanism of the present invention;

[0027] Figure 9 A schematic diagram of the three-dimensional structure of the flip mechanism of the present invention from another angle;

[0028] Figure 10 Schematic diagram of the three-dimensional structure of the internal expansion clamping mechanism of the present invention;

[0029] Figure 11 It is a schematic diagram of the three-dimensional structure of the adsorption clamping mechanism of the present invention.

[0030] Explanation of the accompanying symbols: 1. Vehicle body; 2. Rotating platform; 3. Telescopic column; 4. Telescopic arm; 5. Mounting seat; 6. Turning mechanism; 7. Fixed seat; 8. Internal expansion clamping mechanism; 9. Adsorption clamping mechanism; 10. Hook; 1-1. Track; 1-2. Outrigger; 1-3. Fifth hydraulic cylinder; 2-1. Box; 2-2. First motor; 2-3. Driving wheel; 2-4. First rotating shaft; 2-5. Driven wheel; 2-6. Synchronous belt; 2-7. Turntable; 3-1. Primary column; 3-2. Secondary column; 3-3. Third column; 3-4. First hydraulic cylinder; 3-5. Second hydraulic cylinder; 4-1. Primary support arm; 4-2. Secondary support arm; 4- 3. Three-stage support arm; 4-4. Third hydraulic cylinder; 4-5. Fourth hydraulic cylinder; 6-1. Mounting plate; 6-2. First support frame; 6-3. Second support frame; 6-4. First cylinder; 6-5. Slide rail; 6-6. Slider; 6-7. Limit block; 6-8. Motor mounting frame; 6-9. Second motor; 6-10. Reducer; 6-11. Second rotating shaft; 8-1. Second cylinder; 8-2. Fixed frame; 8-3. Movable frame; 8-4. Inner expansion plate; 8-5. Connecting rod; 9-1. Connecting seat; 9-2. Crossbeam; 9-3. Longitudinal beam; 9-4. Support plate; 9-5. Connecting shaft; 9-6. Gripper; 9-7. Third cylinder; 9-8. Suction cup. DETAILED DESCRIPTION

[0031] like Figure 1-11As shown, a material lifting device for bridge engineering construction includes a vehicle body 1, a rotating platform 2 is installed on the top surface of the vehicle body 1, a telescopic column 3 is installed on the top surface of the rotating platform 2, a telescopic arm 4 is installed on the top surface of the telescopic column 3, a mounting seat 5 is installed at the end of the telescopic arm 4 away from the telescopic column 3, a flip mechanism 6 is installed below the mounting seat 5, a fixed seat 7 is installed on the flip mechanism 6, an internal expansion type clamping mechanism 8 is installed on the top surface of the fixed seat 7, an adsorption type clamping mechanism 9 is installed on the bottom surface of the fixed seat 7, two hooks 10 are installed in front of the fixed seat 7, and one hook 10 is installed at the back of the fixed seat 7.

[0032] A crawler track 1-1 is installed at the bottom of the vehicle body 1, and four legs 1-2 are installed on the top of the vehicle body 1. A fifth hydraulic cylinder 1-3 is installed on the vehicle body 1, and the piston rod of the fifth hydraulic cylinder 1-3 is hinged to the legs 1-2; when the vehicle body 1 moves, the fifth hydraulic cylinder 1-3 lifts the legs 1-2 to facilitate the movement of the device. When the vehicle body 1 moves to the working position, the fifth hydraulic cylinder 1-3 drives the legs 1-2 to descend, and the legs 1-2 contact the ground to fix the position of the vehicle body 1.

[0033] like Figure 4 、 5 As shown, the rotating platform 2 includes a box body 2-1, which is connected to the top surface of the vehicle body 1 by bolts, and a first motor 2-2 is installed inside the box body 2-1, and a driving wheel 2-3 is installed on the output shaft of the first motor 2-2. A first rotating shaft 2-4 is rotatably installed on the top surface of the box body 2-1, and the bottom end of the first rotating shaft 2-4 extends to the interior of the box body 2-1 and is connected to the driven wheel 2-5. The driving wheel 2-3 and the driven wheel 2-5 are connected by a synchronous belt 2-6. The top end of the first rotating shaft 2-4 extends to the top of the box body 2-1 and is connected to the turntable 2-7, and the telescopic column 3 is connected to the top surface of the turntable 2-7.

[0034] When in use, start the first motor 2-2, the first motor 2-2 drives the driving wheel 2-3 to rotate, the driving wheel 2-3 drives the driven wheel 2-5 through the synchronous belt 2-6, the rotation of the driven wheel 2-5 drives the first rotating shaft 2-4 to rotate together, the first rotating shaft 2-4 drives the turntable 2-7 on its top to rotate together, the turntable 2-7 drives the telescopic column 3 to rotate, thereby changing the orientation of the telescopic arm 4, which is convenient for lifting materials in different directions.

[0035] like Figure 6As shown, the telescopic column 3 includes a first-level column 3-1, the bottom end of the first-level column 3-1 is connected to the top surface of the turntable 2-7, the top of the first-level column 3-1 is provided with a second-level column 3-2, the lower part of the second-level column 3-2 is inserted into the first-level column 3-1, the top of the second-level column 3-2 is provided with a third-level column 3-3, the lower part of the third-level column 3-3 is inserted into the second-level column 3-2, the outer side of the first-level column 3-1 is installed with a first hydraulic cylinder 3-4 through a hydraulic cylinder support, the piston rod of the first hydraulic cylinder 3-4 is connected to the second-level column 3-2 through a support, the outer side of the second-level column 3-2 is installed with a second hydraulic cylinder 3-5 through a hydraulic cylinder support, the piston rod of the second hydraulic cylinder 3-5 is connected to the third-level column 3-3 through a support.

[0036] When in use, the piston rod of the first hydraulic cylinder 3-4 extends to drive the secondary column 3-2 to extend upward from the first column 3-1, and the piston rod of the second hydraulic cylinder 3-5 extends to drive the tertiary column 3-3 to extend upward from the secondary column 3-2, thereby increasing the height of the telescopic column 3; the extension lengths of the secondary column 3-2 and the tertiary column 3-3 can be adjusted respectively by the first hydraulic cylinder 3-4 and the second hydraulic cylinder 3-5, thereby facilitating the control of the height of the telescopic column 3.

[0037] like Figure 7 As shown, the telescopic arm 4 includes a first-level support arm 4-1, the left end of the first-level support arm 4-1 is connected to the top surface of the third-level column 3-3, and a second-level support arm 4-2 is arranged on the right side of the first-level support arm 4-1, and the left end of the second-level support arm 4-2 is inserted into the first-level support arm 4-1, and a third-level support arm 4-3 is arranged on the right side of the second-level support arm 4-2, and the left end of the third-level support arm 4-3 is inserted into the second-level support arm 4-2, and a third hydraulic cylinder 4-4 is installed above the first-level support arm 4-1 through a hydraulic cylinder support, and the piston rod of the third hydraulic cylinder 4-4 is connected to the second-level support arm 4-2 through a support, and a fourth hydraulic cylinder 4-5 is installed above the second-level support arm 4-2 through a hydraulic cylinder support, and the piston rod of the fourth hydraulic cylinder 4-5 is connected to the third-level support arm 4-3 through a support, and the right end of the third-level support arm 4-3 is installed with the mounting seat 5.

[0038] When in use, the piston rod of the third hydraulic cylinder 4-4 extends to drive the secondary support arm 4-2 to extend to the right from the primary support arm 4-1, and the piston rod of the fourth hydraulic cylinder 4-5 extends to drive the tertiary support arm 4-3 to extend to the right from the secondary support arm 4-2, thereby increasing the overall length of the telescopic arm 4; the extension lengths of the secondary support arm 4-2 and the tertiary support arm 4-3 can be adjusted respectively by the third hydraulic cylinder 4-4 and the fourth hydraulic cylinder 4-5, thereby facilitating the control of the length of the telescopic arm 4.

[0039] like Figure 8 、9 As shown, the flipping mechanism 6 includes a mounting plate 6-1, and the mounting plate 6-1 is connected to the bottom surface of the mounting seat 5. A first support frame 6-2 and a second support frame 6-3 are arranged below the mounting plate 6-1. The left side of the second support frame 6-3 is connected to a motor mounting frame 6-8, and a second motor 6-9 is installed on the motor mounting frame 6-8. The output end of the second motor 6-9 is connected to a reducer 6-10. The bottom of the first support frame 6-2 and the second support frame 6-3 are both rotatably mounted with a second rotating shaft 6-11 through a bearing. The two second rotating shafts 6-11 are fixedly connected to the left and right side surfaces of the fixed seat 7. The second rotating shaft 6-11 located at the bottom of the second support frame 6-3 is connected to the output end of the reducer 6-10.

[0040] When in use, start the second motor 6-9 and the reducer 6-10, and the second motor 6-9 and the reducer 6-10 drive the second rotating shaft 6-11 to rotate, thereby driving the fixed seat 7 to rotate. Every time the fixed seat 7 rotates 90°, a clamp can be switched. By rotating the fixed seat 7, different sides of the fixed seat 7 are facing downward, and the internal expansion clamping mechanism 8 or the adsorption clamping mechanism 9 or the hook 10 is in the working position.

[0041] In another embodiment, two slide rails 6-5 are installed in parallel on the front and rear of the bottom surface of the mounting plate 6-1, and sliders 6-6 matching the slide rails 6-5 are installed on the top surfaces of the first support frame 6-2 and the second support frame 6-3. A first cylinder 6-4 is installed on the rear side of the first support frame 6-2, and the piston rod of the first cylinder 6-4 is connected to the second support frame 6-3; four limit blocks 6-7 are connected to the bottom surface of the mounting plate 6-1, and the four limit blocks 6-7 are respectively arranged on the left and right sides of the first support frame 6-2 and the left and right sides of the second support frame 6-3; in this embodiment, the distance between the first support frame 6-2 and the second support frame 6-3 is adjusted by the first cylinder 6-4 to match with fixed seats 7 of different sizes, and the fixed seat 7 is connected to the second rotating shaft 6-11 by bolts.

[0042] like Figure 10 As shown, the internal expansion clamping mechanism 8 includes a second cylinder 8-1, which is installed on the top surface of the fixed seat 7. A fixed frame 8-2 is connected above the second cylinder 8-1. The piston rod of the second cylinder 8-1 passes through the fixed frame 8-2 and extends to the bottom of the fixed frame 8-2. The left and right sides of the fixed frame 8-2 are hinged with movable frames 8-3. An internal expansion plate 8-4 is installed on the outer side of the movable frame 8-3. The internal expansion plate 8-4 is set as an arc-shaped plate. Two connecting rods 8-5 are connected to the piston rod of the second cylinder 8-1. The other end of the connecting rod 8-5 is hinged to the movable frame 8-3.

[0043] When in use, the piston rod of the second cylinder 8-1 extends to drive the two connecting rods 8-5 to expand to the left and right sides, thereby driving the two inner expansion plates 8-4 to move to both sides, so that the inner expansion plates 8-4 fit with the inner wall of the tubular material, thereby lifting the tubular material.

[0044] like Figure 11 As shown, the adsorption clamping mechanism 9 includes a connecting seat 9-1, which is connected to the bottom surface of the fixed seat 7, and the bottom surface of the connecting seat 9-1 is connected to a crossbeam 9-2, and the bottom surface of the crossbeam 9-2 is connected to three longitudinal beams 9-3, and a suction cup 9-8 is provided at the lower part of the longitudinal beam 9-3. The top surfaces of the longitudinal beams 9-3 on the left and right sides are connected to two support plates 9-4, and a connecting shaft 9-5 is installed on the top of the support plate 9-4. The front and rear sides of the connecting shaft 9-5 are hinged with clamping claws 9-6, which are located in the middle. Two groups of third cylinders 9-7 are installed on the top surface of the longitudinal beam 9-3, and the two groups of third cylinders 9-7 are arranged in parallel front to back, and each group of the third cylinders 9-7 includes two left-right symmetrical third cylinders 9-7, and the piston rods of the two third cylinders 9-7 are respectively connected to the left and right clamping claws 9-6; a group of suction cup mounting plates are installed on the left and right sides of the longitudinal beam 9-3, and each group of the suction cup mounting plates includes three suction cup mounting plates arranged at equal intervals in the front-to-back direction, and the suction cups 9-8 are installed on the suction cup mounting plates.

[0045] When in use, the two symmetrical third cylinders 9-7 work simultaneously. When the piston rod of the third cylinder 9-7 is extended, it drives the left and right clamps 9-6 to rotate around the connecting shaft 9-5. The lower parts of the left and right clamps 9-6 approach each other to clamp the plate-like material. At the same time, the suction cup 9-8 adsorbs the top surface of the plate-like material to facilitate the lifting of the plate-like material.

[0046] The working process of the present invention is as follows:

[0047] First, when the vehicle body 1 moves to the working position, the fifth hydraulic cylinder 1-3 drives the support leg 1-2 to descend, and the support leg 1-2 contacts the ground to fix the position of the vehicle body 1; then, the flip mechanism 6 drives the fixing seat 7 to rotate, so that the internal expansion clamping mechanism 8 or the adsorption clamping mechanism 9 or the hook 10 is in the working position; after that, the telescopic arm 4 works, the piston rod of the third hydraulic cylinder 4-4 extends to drive the secondary support arm 4-2 to extend to the right from the primary support arm 4-1, and the piston rod of the fourth hydraulic cylinder 4-5 extends to drive the tertiary support arm 4-3 to extend from the secondary support arm 4-2 It extends to the right, increasing the overall length of the telescopic arm 4 and driving the clamp closer to the material; then, the telescopic column 3 works, the piston rod of the first hydraulic cylinder 3-4 extends, driving the secondary column 3-2 to extend upward from the primary column 3-1, and the piston rod of the second hydraulic cylinder 3-5 extends, driving the tertiary column 3-3 to extend upward from the secondary column 3-2, increasing the height of the telescopic column 3 and lifting the material; finally, the rotating platform 2 drives the telescopic column 3 to rotate, thereby changing the orientation of the telescopic arm 4, lifting the material to the specified position, and the height of the telescopic column 3 is lowered to put the material down.

[0048] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A material lifting device for bridge engineering construction, characterized in that: The invention comprises a vehicle body (1), wherein a rotating platform (2) is arranged on the top surface of the vehicle body (1), a telescopic column (3) is arranged on the top surface of the rotating platform (2), a telescopic arm (4) is arranged on the top surface of the telescopic column (3), a mounting seat (5) is arranged at one end of the telescopic arm (4) away from the telescopic column (3), a turning mechanism (6) is arranged below the mounting seat (5), a fixing seat (7) is arranged on the turning mechanism (6), an inner expansion type clamping mechanism (8) is arranged on the top surface of the fixing seat (7), an adsorption type clamping mechanism (9) is arranged on the bottom surface of the fixing seat (7), two hooks (10) are arranged in front of the fixing seat (7), and one hook (10) is arranged at the back of the fixing seat (7).

2. The material lifting device for bridge engineering construction according to claim 1 is characterized in that: The rotating platform (2) comprises a box (2-1), the box (2-1) is arranged on the top surface of the vehicle body (1), a first motor (2-2) is arranged inside the box (2-1), a driving wheel (2-3) is arranged on the output shaft of the first motor (2-2), a first rotating shaft (2-4) is arranged on the top surface of the box (2-1), the bottom end of the first rotating shaft (2-4) extends to the inside of the box (2-1) and is connected to the driven wheel (2-5), the driving wheel (2-3) and the driven wheel (2-5) are connected by a synchronous belt (2-6), the top end of the first rotating shaft (2-4) extends to the top of the box (2-1) and is connected to the turntable (2-7), and the telescopic column (3) is arranged on the top surface of the turntable (2-7).

3. The material lifting device for bridge engineering construction according to claim 2 is characterized in that: The telescopic column (3) comprises a primary column (3-1), the bottom end of the primary column (3-1) is arranged on the top surface of the turntable (2-7), a secondary column (3-2) is arranged on the top of the primary column (3-1), a tertiary column (3-3) is arranged on the top of the secondary column (3-2), a first hydraulic cylinder (3-4) is arranged on the outer side of the primary column (3-1), a piston rod of the first hydraulic cylinder (3-4) is connected to the secondary column (3-2), a second hydraulic cylinder (3-5) is arranged on the outer side of the secondary column (3-2), and a piston rod of the second hydraulic cylinder (3-5) is connected to the tertiary column (3-3).

4. The material lifting device for bridge engineering construction according to claim 3 is characterized in that: The telescopic arm (4) comprises a primary support arm (4-1), the left end of the primary support arm (4-1) is arranged on the top surface of the tertiary column (3-3), a secondary support arm (4-2) is arranged on the right side of the primary support arm (4-1), a tertiary support arm (4-3) is arranged on the right side of the secondary support arm (4-2), a third hydraulic cylinder (4-4) is arranged above the primary support arm (4-1), the piston rod of the third hydraulic cylinder (4-4) is connected to the secondary support arm (4-2), a fourth hydraulic cylinder (4-5) is arranged above the secondary support arm (4-2), the piston rod of the fourth hydraulic cylinder (4-5) is connected to the tertiary support arm (4-3), and the right end of the tertiary support arm (4-3) is arranged with the mounting seat (5).

5. The material lifting device for bridge construction according to claim 1 is characterized in that: The flip mechanism (6) comprises a mounting plate (6-1), wherein the mounting plate (6-1) is arranged on the bottom surface of the mounting seat (5), a first support frame (6-2) and a second support frame (6-3) are arranged below the mounting plate (6-1), a motor mounting frame (6-8) is arranged on the left side of the second support frame (6-3), a second motor (6-9) is arranged on the motor mounting frame (6-8), a reducer (6-10) is arranged at the output end of the second motor (6-9), a second rotating shaft (6-11) is arranged at the bottom of the first supporting frame (6-2) and the second supporting frame (6-3), the two second rotating shafts (6-11) are connected to the left and right side surfaces of the fixing seat (7), and the second rotating shaft (6-11) located at the bottom of the second supporting frame (6-3) is connected to the output end of the reducer (6-10).

6. The material lifting device for bridge engineering construction according to claim 5 is characterized in that: The bottom surface of the mounting plate (6-1) is provided with a slide rail (6-5), the top surfaces of the first support frame (6-2) and the second support frame (6-3) are both provided with a slider (6-6) matching the slide rail (6-5), the rear side of the first support frame (6-2) is provided with a first cylinder (6-4), the piston rod of the first cylinder (6-4) is connected to the second support frame (6-3), and the bottom surface of the mounting plate (6-1) is provided with four limit blocks (6-7), and the four limit blocks (6-7) are respectively arranged on the left and right sides of the first support frame (6-2) and the left and right sides of the second support frame (6-3).

7. The material lifting device for bridge construction according to claim 1 is characterized in that: The internal expansion clamping mechanism (8) comprises a second cylinder (8-1), the second cylinder (8-1) is arranged on the top surface of the fixed seat (7), a fixed frame (8-2) is arranged above the second cylinder (8-1), the piston rod of the second cylinder (8-1) passes through the fixed frame (8-2) and extends to the bottom of the fixed frame (8-2), the left and right sides of the fixed frame (8-2) are hinged with movable frames (8-3), the outer side of the movable frame (8-3) is provided with an internal expansion plate (8-4), and two connecting rods (8-5) are arranged on the piston rod of the second cylinder (8-1), and the other end of the connecting rod (8-5) is hinged to the movable frame (8-3).

8. The material lifting device for bridge construction according to claim 7 is characterized in that: The inner expansion plate (8-4) is configured as an arc-shaped plate.

9. The material lifting device for bridge engineering construction according to claim 1 is characterized in that: The adsorption-type clamping mechanism (9) comprises a connecting seat (9-1), wherein the connecting seat (9-1) is arranged on the bottom surface of the fixing seat (7), a crossbeam (9-2) is arranged on the bottom surface of the connecting seat (9-1), a plurality of longitudinal beams (9-3) are arranged on the bottom surface of the crossbeam (9-2), a suction cup (9-8) is arranged at the lower part of the longitudinal beam (9-3), and support plates (9-4) are arranged on the top surfaces of the longitudinal beams (9-3) on the left and right sides, and the support plates (9-4) are arranged on the upper surfaces of the longitudinal beams (9-3) on the left and right sides. A connecting shaft (9-5) is arranged on the top, and clamping claws (9-6) are arranged on the front and rear sides of the connecting shaft (9-5). Two groups of third cylinders (9-7) are arranged on the top surface of the longitudinal beam (9-3) in the middle, and the two groups of third cylinders (9-7) are arranged in parallel front and back, and each group of the third cylinders (9-7) includes two third cylinders (9-7) that are symmetrical on the left and right, and the piston rods of the two third cylinders (9-7) are respectively connected to the two left and right clamping claws (9-6).

10. The material lifting device for bridge engineering construction according to claim 9, characterized in that: A group of suction cup mounting plates are arranged on both left and right sides of the longitudinal beam (9-3), and each group of suction cup mounting plates includes a plurality of suction cup mounting plates arranged at equal intervals in the front-to-back direction, and the suction cups (9-8) are arranged on the suction cup mounting plates.

Images