A manned crane

Abstract

The utility model relates to the technical field of manned crane, especially a manned crane, including support component, support component includes a plurality of crossbeam that interval setting, the crossbeam top surface left and right symmetry is provided with two groups of hoist and lift mechanism, and the hoisting rope of two groups of hoist and lift mechanism is commonly connected with box body component, and two groups of hoist and lift mechanism not only can jointly lift or descend box body component, but also can respectively and individually lift or descend box body component, and the limiting component that prevents the shaking of box body component during moving is still arranged on the both sides of box body component, the utility model's advantage lies in: through the setting of two groups of hoist and lift mechanism, can effectively prevent the hoisting rope of one group of hoist and lift mechanism from breaking, the device cannot be normally used, greatly improves the service life of device, greatly improves the security of device, more practical.

Description

Technical Field

[0001] This utility model relates to the field of manned crane technology, and in particular to a manned crane. Background Technology

[0002] In recent years, the domestic crane industry has seen an increasing demand for cranes used for carrying personnel in special environments. Currently, there are very few crane control systems specifically designed for personnel carrying. Considering the different requirements for the reliability and safety of cranes carrying personnel compared to general lifting operations, it is necessary to place greater emphasis on the design of crane personnel carrying systems. Crane cages are a new type of high-altitude work equipment that can replace traditional scaffolding, reduce labor intensity, improve work efficiency, and are reusable. The use of crane personnel trolleys has gradually become a trend, widely recognized in high-altitude construction, installation, maintenance, and cleaning operations, and can also be used in construction projects, large tanks, bridges, and dams. Using crane cages to carry personnel or goods eliminates the need for scaffolding, reducing construction costs to only 28% of traditional scaffolding, while also offering greater operational flexibility and significantly improved work efficiency.

[0003] The prior art, disclosed in CN217458744U, discloses a manned gantry crane, including a body. A drive mechanism is fixedly installed on the top of the body, and a liftable manned cage is arranged inside the body. A movable pulley assembly is provided on the top of the manned cage, including two pulleys arranged on both sides of the top of the manned cage. A wire rope connects the movable pulley assembly to the drive mechanism. In this embodiment, the crane, by providing two pulleys on the top of the manned cage, ensures tension between the wire ropes during the lifting process, thereby preventing the manned cage from rotating during lifting and causing the wire ropes to break.

[0004] However, the aforementioned existing technology still has certain shortcomings in its use: In the existing technology structure, the two sets of drive mechanisms are connected to opposite corners of the top surface of the cage by steel wire ropes, with the left drive mechanism and steel wire rope on the left and the right drive mechanism and steel wire rope on the right. Although this can prevent the cage from falling directly if one of the steel wire ropes breaks, when one of the steel wire ropes breaks, the cage will tilt and sway to the other side, which can prevent the cage from falling directly. However, the workers in the cage may still be thrown out due to the swaying or tilting. At this time, the drive mechanism and steel wire rope on the other side are holding up one corner of the cage. In this state, the device cannot work safely and stably. It needs to be maintained before it can continue to work, resulting in low efficiency and the need to improve safety. Therefore, the existing technology needs to be further improved. Utility Model Content

[0005] The purpose of this invention is to provide a manned crane to solve the problems mentioned in the background section.

[0006] The present invention adopts the following technical solution: a manned crane, including a support assembly, the support assembly including three sets of crossbeams spaced apart, two sets of lifting mechanisms symmetrically arranged on the top surface of the crossbeams, the lifting ropes of the two sets of lifting mechanisms are connected to the box assembly, the two sets of lifting mechanisms can not only lift or lower the box assembly together, but also lift or lower the box assembly separately, and limit components are also provided on both sides of the box assembly to prevent the box assembly from swaying during movement.

[0007] Optionally, the support assembly also includes two connecting beams respectively disposed on the left and right sides of the crossbeam. The bottom surfaces of the connecting beams are symmetrically and inclinedly provided with connecting columns. The bottom surfaces of the two connecting columns disposed at the front and rear are jointly provided with a traveling frame. The bottom surface of the traveling frame is rotatably provided with several traveling wheels, and a drive mechanism for driving the traveling wheels to rotate is provided inside the traveling frame.

[0008] Optionally, the box assembly includes a frame, a fence is provided in the lower middle part of the rear side of the frame, a sliding door is rotatably provided in the front side of the frame, a rotating rod is rotatably provided at the end of the sliding door away from the rotating axis, an L-shaped limiting plate is provided in the front side of the frame, the L-shaped limiting plate and the side of the frame form a U-shaped groove, and the rotating rod can be engaged in the U-shaped groove.

[0009] Optionally, U-shaped tubes are symmetrically arranged on the inner wall of the frame, and safety belts are sleeved and slidably arranged on the U-shaped tubes.

[0010] Optionally, the hoisting mechanism includes two symmetrically arranged support members, which are set on the middle crossbeam or connecting beam. Each support member has a limiter on its top surface, and a drum is rotatably mounted between the two limiters. A hoisting rope is wound on the drum. Support frames two and three are set on the top surface of the outer crossbeam. A motor is mounted on support frame two, and the output shaft of the motor is rotatably connected to support frame three. A linkage mechanism is fixedly mounted on the three sets of crossbeams. The input end of the linkage mechanism is connected to the output shaft of the motor, and the output end of the linkage mechanism is connected to the drum.

[0011] Optionally, the lifting mechanism also includes a mounting frame 1 symmetrically arranged in the middle of the top surface of the frame, with a pulley 1 rotatably mounted on the mounting frame 1. A mounting frame 2 is arranged in the middle of the top surface of the frame, with a pulley 2 rotatably mounted on the mounting frame 2. The bottom surfaces of the two sets of crossbeams are symmetrically equipped with mounting plates, and the bottom surfaces of the two mounting plates are equipped with fixing points. One end of the lifting rope on the left drum is connected to the pulley 1 on the left and passes through the mounting frame 2 to connect to the pulley 1 on the right, and finally is fixedly connected to the fixing point on the right. The lifting rope on the right drum is connected to the pulley 2 and is fixedly connected to the fixing point on the left.

[0012] Mounting bracket 2 is located between the two mounting brackets 1, and mounting bracket 2 is higher than mounting bracket 1.

[0013] Optionally, the limiting component includes two columns respectively set on the bottom surface of the connecting beams on both sides, the bottom surface of the columns being connected to the top surface of the traveling frame, and the inner sides of the two columns having symmetrically opened grooves. Limiting columns are symmetrically set on the left and right sides of the frame, and the limiting columns slide in the grooves on both sides respectively.

[0014] Optionally, a reinforcing rib is provided between the limiting post and the side of the frame.

[0015] Optionally, both the front and rear sides of mounting bracket one and mounting bracket two are provided with reinforcing ribs two.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] 1. In this application, two sets of lifting mechanisms are symmetrically arranged on the crossbeam. A pulley is symmetrically arranged in the center of the top surface of the frame, and a pulley is arranged in the center between the two pulleys, with the pulley being higher than the pulleys. The lifting rope of the left lifting mechanism cooperates with the pulleys on both sides, fixing the end of the rope to the right side of the crossbeam. The lifting rope of the right lifting mechanism cooperates with the pulley in the middle, fixing the end of the rope to the left side of the crossbeam. This allows both sets of lifting mechanisms to connect to the central position of the frame simultaneously. This enables both sets of lifting mechanisms to simultaneously lift or lower the frame, saving effort and time. They can also be used independently to lift or lower the frame. Furthermore, if the rope in one set of lifting mechanisms breaks, the other set can still stabilize the frame and continue normal operation, preventing the frame from tipping over or shaking. This greatly ensures the safety of personnel inside the frame, significantly extends the service life of the device, greatly improves safety during use, and enhances its practicality.

[0018] 2. In this application, limiting components are provided on both sides of the frame. The limiting components include columns fixedly connected between the connecting beam and the traveling frame. The inner side of the column is provided with a sliding groove. Limiting columns that slide in the sliding groove are fixedly provided on both sides of the frame. This ensures that the frame can only move vertically during the lifting or lowering process. This not only ensures the stability of the frame during the lifting or lowering process, but also ensures that the frame will not shake or tip over after the hoisting rope of one of the hoisting mechanisms breaks. This further ensures the safety of the personnel inside the frame and further improves the safety of the installation.

[0019] 3. In this application, a reinforcing rib is fixedly provided between the limiting post and the side of the frame. By providing the reinforcing rib, not only can the connection strength between the limiting post and the frame be enhanced, but the bending resistance of the limiting post can also be enhanced.

[0020] 4. In this application, both the front and rear sides of the mounting bracket 1 and the mounting bracket 2 are fixedly provided with reinforcing ribs 2. By setting the reinforcing ribs 2, not only can the connection strength between the mounting bracket and the frame be strengthened, but the connection area between the mounting bracket and the frame can also be increased, thereby reducing the shaking of the frame and improving stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a structural schematic diagram of the bracket assembly and the limiting assembly of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the housing assembly and lifting mechanism of this utility model. Figure 1 ;

[0024] Figure 4 This is a schematic diagram of the structure of the housing assembly and lifting mechanism of this utility model. Figure 2 .

[0025] In the diagram: 1. Support assembly; 2. Crossbeam; 3. Lifting mechanism; 4. Box assembly; 5. Limiting assembly; 6. Connecting beam; 7. Connecting column; 8. Traveling frame; 9. Traveling wheel; 10. Frame; 11. Sliding door; 12. Rotating rod; 13. L-shaped limiting plate; 14. U-shaped tube; 15. Safety belt; 16. Support component one; 17. Limiting component; 18. Drum; 19. Lifting rope; 20. Support frame two; 21. Support frame three; 22. Motor; 23. Mounting frame one; 24. Pulley one; 25. Mounting frame two; 26. Pulley two; 27. Mounting plate; 28. Fixing point; 29. ​​Column; 30. Slide groove; 31. Limiting column; 32. Reinforcing rib one; 33. Reinforcing rib two; 34. Linkage mechanism. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only a part of the embodiments disclosed in this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Various non-limiting embodiments of this utility model are described in detail below. Any number of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0028] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0029] Please see Figure 1-4 The present invention will be described in detail below with reference to the accompanying drawings and embodiments: A manned crane includes a support assembly 1. The support assembly 1 includes three sets of crossbeams 2 arranged at intervals. Two sets of lifting mechanisms 3 are symmetrically arranged on the top surface of the crossbeams 2. The output ends of the two sets of lifting mechanisms 3 are connected to a box assembly 4. The two sets of lifting mechanisms 3 can not only lift or lower the box assembly 4 together, but also lift or lower the box assembly 4 separately. Limiting components 5 are also provided on both sides of the box assembly 4 to prevent the box assembly 4 from shaking during movement.

[0030] Please see Figure 1-2 The support assembly 1 also includes two connecting beams 6 fixedly disposed on the left and right sides of the crossbeam 2, respectively. Connecting columns 7 are symmetrically and obliquely fixedly disposed on the bottom surface of the connecting beams 6. The bottom surfaces of the two connecting columns 7 disposed at the front and rear are jointly fixedly disposed on a traveling frame 8. Several traveling wheels 9 are rotatably disposed on the bottom surface of the traveling frame 8. A drive mechanism for driving the traveling wheels 9 to rotate is disposed inside the traveling frame 8. The drive mechanism is prior art and will not be described in detail here.

[0031] Please see Figure 3 The enclosure assembly 4 includes a frame 10. A fence is fixedly installed on the lower rear side of the frame 10. A sliding door 11 is rotatably installed on the front side of the frame 10. A rotating rod 12 is rotatably installed at the end of the sliding door 11 away from the rotating shaft. An L-shaped limiting plate 13 is fixedly installed on the front side of the frame 10. The L-shaped limiting plate 13 and the side of the frame 10 form a U-shaped groove. The rotating rod 12 can be engaged in the U-shaped groove. U-shaped tubes 14 are symmetrically fixedly installed on the inner wall of the frame 10. A safety belt 15 is sleeved and slidably installed on the U-shaped tube 14.

[0032] When it is necessary to carry people to a high altitude, the frame 10 is first lowered to the bottom using the hoisting mechanism 3. Then, the staff rotates the rotating rod 12 out of the U-shaped groove to release the limit of the sliding door 11. The sliding door 11 is then pulled open, and the staff enters the frame 10. The safety belt 15 is then securely fastened to the staff. The sliding door 11 is then closed, and the rotating rod 12 is locked back into the U-shaped groove. Finally, the hoisting mechanism 3 can be used to raise the frame 10 carrying people to the required height.

[0033] Please see Figure 3-4The lifting mechanism 3 includes symmetrically arranged support members 16. Two support members 16 are fixedly mounted on the middle crossbeam 2 or connecting beam 6. Limiting members 17 are fixedly mounted on the top surface of each of the two support members 16. A drum 18 is rotatably mounted between the two limiting members 17. A lifting rope 19 is wound on the drum 18. The lifting rope 19 is made of steel wire rope. Support frame 20 and support frame 31 are fixedly mounted on the top surface of the outer crossbeam 2. A motor 22 is fixedly mounted on support frame 20. The output shaft of the motor 22 is rotatably connected to support frame 31. A linkage mechanism 34 is fixedly mounted on the three sets of crossbeams 2. The input end of the linkage mechanism 34 is connected to the output shaft of the motor 22. The output end of the linkage mechanism 34 is connected to the drum 18. Through the linkage mechanism 34, the rotational power of the motor 22 can be transmitted to the drum 18, so that the drum 18 can rotate in both directions, thereby enabling the lifting rope 19 on the drum 18 to be unwound or wound, thus achieving the lifting or lowering of the box assembly 4. The linkage mechanism 34 is existing technology and will not be described in detail here.

[0034] Please see Figure 3-4 The lifting mechanism 3 also includes a mounting frame 23 symmetrically fixedly disposed in the middle of the top surface of the frame 10. A pulley 24 is rotatably mounted on the mounting frame 23. A second mounting frame 25 is fixedly disposed in the middle of the top surface of the frame 10. A second pulley 26 is rotatably mounted on the second mounting frame 25. Mounting plates 27 are symmetrically fixed to the bottom surfaces of the two sets of crossbeams 2. Fixing points 28 are fixedly disposed on the bottom surfaces of both mounting plates 27. One end of the lifting rope 19 on the left drum 18 is connected to the left pulley 24 and passes through the second mounting frame 25 to connect to the right pulley 24, finally being fixedly connected to the right fixing point 28. The lifting rope 19 on the right drum 18 is connected to the second pulley 26 and fixedly connected to the left fixing point 28. The fixing point 28 is prior art and will not be described further here.

[0035] Please see Figure 3 Mounting bracket 25 is positioned between the two mounting brackets 1 23, and mounting bracket 25 is higher than mounting bracket 1 23. This staggered arrangement prevents mutual interference and will not affect the operation of each other.

[0036] By using the two drums 18 on the left and right sides and the pulleys 24 and 26 on the top surface of the frame 10, the two sets of lifting mechanisms 3 can not only lift or lower the frame 10 together stably, but also lift or lower the frame 10 independently and stably. This ensures that if the hoisting rope 19 of one set of lifting mechanisms 3 breaks accidentally, the other set can still maintain normal operation of the frame 10, preventing the frame 10 from tipping over or shaking after the hoisting rope 19 breaks. This not only ensures the normal use of the device, but also provides greater safety for the personnel inside the frame 10, greatly improving the service life of the device, enhancing safety during use, and making it more practical.

[0037] Please see Figure 2-4 The limiting component 5 includes two columns 29 fixedly installed on the bottom surface of the connecting beams 6 on both sides. The bottom surface of the columns 29 is fixedly connected to the top surface of the walking frame 8. The columns 29 not only provide an installation platform, but also enhance the support strength of the support component 1, making the overall movement of the device more stable. The inner sides of the two columns 29 are symmetrically provided with sliding grooves 30. Limiting columns 31 are symmetrically fixed on the left and right sides of the frame 10. The limiting columns 31 slide in the sliding grooves 30 on both sides. Through the cooperation of the limiting columns 31 and the columns 29 with sliding grooves 30, the frame 10 can only move in the vertical direction. This not only ensures the stability of the frame 10 during the lifting or lowering process, but also ensures that the frame 10 will not shake or tip over after the hoisting rope 19 of one of the hoisting mechanisms 3 breaks. This further ensures the safety of the personnel inside the frame 10 and further improves the safety of the installation.

[0038] Please see Figure 2 A reinforcing rib 32 is fixedly provided between the limiting post 31 and the side of the frame 10. The setting of the reinforcing rib 32 not only enhances the connection strength between the limiting post 31 and the frame 10, but also enhances the bending resistance of the limiting post 31.

[0039] Please see Figure 3 Both mounting bracket 1 23 and mounting bracket 2 25 are fixedly provided with reinforcing ribs 2 33 on the front and rear sides. By setting the reinforcing ribs 2 33, not only can the connection strength between the mounting bracket and the frame 10 be strengthened, but the connection area between the mounting bracket and the frame 10 can also be increased, thereby reducing the shaking of the frame 10 and improving stability.

[0040] When it is necessary to lift people to the required height, first start the motors 22 on both sides. The motors 22 drive the drums 18 on both sides to unwind through the linkage mechanism 34, so that the hoisting rope 19 gradually extends, and the frame 10 is continuously lowered until the bottom of the frame 10 contacts the ground. During the descent of the frame 10, the limit post 31 descends along the slide 30. Then, the worker unscrews the rotating rod 12 from the U-shaped groove, pulls open the sliding door 11 and enters the frame 10. Then, the worker securely fastens the safety belt 15, closes the sliding door 11, and re-engages the rotating rod 12 into the U-shaped groove. Finally, start the motor 22 again, so that the drum 18 can rewind the hoisting rope 19 to lift the frame 10 and the worker to the required height.

[0041] Based on the above description in this specification, those skilled in the art will also understand that the following terms, such as "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," which indicate orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as a limitation on the present invention.

[0042] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A manned crane, characterized in that: The system includes a support assembly, which comprises several crossbeams spaced apart. Two sets of lifting mechanisms are symmetrically arranged on the top surface of the crossbeams. The lifting ropes of the two sets of lifting mechanisms are connected to the housing assembly. The two sets of lifting mechanisms can not only lift or lower the housing assembly together, but also lift or lower the housing assembly individually. Limiting components are also provided on both sides of the housing assembly to prevent the housing assembly from swaying during movement.

2. The manned crane according to claim 1, characterized in that: The support assembly also includes two connecting beams respectively set on the left and right sides of the crossbeam. The bottom surfaces of the connecting beams are symmetrically and inclinedly equipped with connecting columns. The bottom surfaces of the two connecting columns set at the front and rear are jointly equipped with a traveling frame. The bottom surface of the traveling frame is rotatably equipped with several traveling wheels. The traveling frame is equipped with a drive mechanism that drives the traveling wheels to rotate.

3. The manned crane according to claim 1, characterized in that: The box assembly includes a frame, a fence is provided on the lower rear side of the frame, a sliding door is rotatably provided on the front side of the frame, a rotating rod is rotatably provided on the end of the sliding door away from the rotating axis, an L-shaped limiting plate is provided on the front side of the frame, the L-shaped limiting plate and the side of the frame form a U-shaped groove, and the rotating rod can be engaged in the U-shaped groove.

4. The manned crane according to claim 3, characterized in that: U-shaped tubes are symmetrically arranged on the inner wall of the frame, and safety belts are fitted onto and slidably installed on the U-shaped tubes.

5. The manned crane according to claim 2, characterized in that: The hoisting mechanism includes two symmetrically arranged support members, which are located on the middle crossbeam or connecting beam. Each support member has a limit device on its top surface. A drum is rotatably mounted between the two limit devices, and a hoisting rope is wound on the drum. Support frames two and three are located on the top surface of the outer crossbeam. A motor is mounted on support frame two, and the output shaft of the motor is rotatably connected to support frame three. A linkage mechanism is fixedly mounted on the three sets of crossbeams. The input end of the linkage mechanism is connected to the output shaft of the motor, and the output end of the linkage mechanism is connected to the drum.

6. The manned crane according to claim 5, characterized in that: The hoisting mechanism also includes a mounting frame 1 symmetrically arranged in the middle of the top surface of the frame, with a pulley 1 rotatably mounted on the mounting frame 1. A mounting frame 2 is arranged in the middle of the top surface of the frame, with a pulley 2 rotatably mounted on the mounting frame 2. There are mounting plates symmetrically arranged on the bottom surfaces of the two sets of crossbeams, and fixed points are provided on the bottom surfaces of the two mounting plates. One end of the hoisting rope on the left drum is connected to the pulley 1 on the left and passes through the mounting frame 2 to connect to the pulley 1 on the right, and finally is fixedly connected to the fixed point on the right. The hoisting rope on the right drum is connected to the pulley 2 and is fixedly connected to the fixed point on the left.

7. The manned crane according to claim 6, characterized in that: Mounting bracket 2 is located between the two mounting brackets 1, and mounting bracket 2 is higher than mounting bracket 1.

8. The manned crane according to claim 2, characterized in that: The limiting component includes two columns respectively set on the bottom surface of the connecting beams on both sides. The bottom surface of the columns is connected to the top surface of the walking frame. The inner side of the two columns is symmetrically provided with sliding grooves. Limiting columns are symmetrically arranged on the left and right sides of the frame. The limiting columns slide in the sliding grooves on both sides respectively.

9. The manned crane according to claim 8, characterized in that: A reinforcing rib is provided between the limiting post and the side of the frame.

10. The manned crane according to claim 6, characterized in that: Both mounting bracket 1 and mounting bracket 2 have reinforcing ribs on their front and rear sides.

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