A large bucket screen integrated lifting system and construction method thereof

Abstract

The present invention relates to the technical field of installation of large-scale bucket screens in buildings such as stadiums, and specifically to an integrated lifting system for large-scale bucket screens and a construction method thereof. The lifting system includes a grape rack arranged on a dome steel structure platform, a driving mechanism and a lifting device arranged on the grape rack, and an electric control cabinet electrically connected to the driving mechanism; the lifting device includes a roller, a cable and a fixing buckle; a movable pulley is also provided on the bucket screen; the output end of the driving mechanism is fixedly connected to the input end of the roller, one end of the cable is wound on the roller, and the other end is wound around the movable pulley and fixedly connected to the fixing buckle. The lifting system has a simple structure, and two people can install the lifting system on the dome steel structure platform using a lift. The construction process does not occupy a site, reduces labor costs, and significantly improves efficiency; the height of the bucket screen is adjustable after installation, and the bucket screen can be placed on the ground when the screen or large components are repaired or replaced, and no scaffolding is required, which greatly reduces the workload and work intensity.

Description

Technical Field

[0001] The invention relates to the technical field of installation of large-scale bucket screens in buildings such as stadiums, and in particular to a large-scale bucket screen integrated lifting system and a construction method thereof. Background Art

[0002] In the construction of large-scale cultural and sports venues, the screen is an important medium for the venue to convey media information to the audience and is an indispensable part of the venue; the installation of the screen is an important part of the construction progress of large-scale cultural and sports venues and is also a key point of the project during the construction process.

[0003] The existing installation of the bucket screen is to install the bucket screen on the dome. Generally, a scaffold is first set up below the installation position of the bucket screen. Workers hoist the parts of the bucket screen from the ground to the scaffold on the scaffold, and then install them on the dome. Finally, the bucket screen is assembled and the scaffold is dismantled after completion. This method will take up a lot of construction time and occupy a large area when the bucket screen is large and the dome is high. If it is not dismantled in time, other work cannot continue. In addition, the bucket screen has a complex structure and requires many workers, which increases the construction cost, reduces the overall construction progress of the project, and greatly affects the efficiency. During maintenance, if the screen or large parts need to be replaced, scaffolding must be set up in this way. Ordinary lifting equipment is difficult to support the lifting of large parts, and maintenance is also extremely inconvenient. Summary of the invention

[0004] Aiming at the technical problems in the prior art such as large space occupation, long time, high labor cost and difficulty in maintenance in setting up scaffolding, the present invention proposes a large-scale bucket screen integrated lifting system and a construction method thereof.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a large-scale bucket screen integrated lifting system, the lifting system is arranged on the dome steel structure platform, and the bucket screen is connected at the bottom, the lifting system includes a grape rack, a driving mechanism, a lifting device and an electric control cabinet; the grape rack is horizontally arranged on the dome steel structure platform, and the driving mechanism and the lifting device are both arranged on the grape rack; the driving mechanism is electrically connected to the electric control cabinet; the lifting device includes a drum, a cable and a fixing buckle; a movable pulley is also provided on the bucket screen; the output end of the driving mechanism is fixedly connected to the input end of the drum, one end of the cable is wound on the drum, and the other end passes around the movable pulley and is fixedly connected to the fixing buckle.

[0006] Preferably, there are four lifting devices and four movable pulleys, and the four lifting devices are respectively arranged at the four corners of the grape rack, and the positions of the four movable pulleys on the bucket screen correspond to the positions of the four lifting devices on the grape rack.

[0007] Preferably, there are two driving mechanisms, which are respectively arranged between two lifting devices along the length direction of the grape rack, and each driving mechanism is provided with two transmission shafts, and the output ends of the two transmission shafts are respectively fixedly connected to the input ends of the rollers of the two lifting devices;

[0008] Preferably, the driving mechanism also includes a motor and a reducer, the extended end of the motor output shaft is fixedly connected to the reducer input end, the reducer has two output ends, and the two output ends are respectively fixedly connected to the input ends of two transmission shafts; the motor is electrically connected to the electric control cabinet.

[0009] Preferably, the bucket screen comprises a bucket screen frame and a screen body, the screen body is erected on the side of the bucket screen frame, and the movable pulley is arranged on the bucket screen frame.

[0010] Preferably, it also includes a disc brake; there are four disc brakes, which are respectively arranged on one side of the drums of the four lifting devices; the brake disc of the disc brake cooperates with the drum.

[0011] Preferably, it also includes a drum brake; there are two drum brakes, which are respectively arranged on one side of the output shafts of the two motors; and the brake shoes of the drum brake match the output shafts of the motors.

[0012] Preferably, a remote controller is further included, and a signal receiving device is also provided in the electric control cabinet, and the signal receiving device is wirelessly connected to the remote controller.

[0013] Preferably, the grape rack comprises a grape rack body, a plurality of welding claws and a steel grating plate; the plurality of welding claws are symmetrically fixed on the outside of the grape rack body and are all welded to the dome steel structure platform; the steel grating plate is laid on the upper surface of the grape rack body.

[0014] The present invention also provides a construction method of a large bucket screen integrated lifting system, comprising the following steps:

[0015] Step 1: Install the grape rack; according to the design position of the engineering drawing, use a lift to fix the grape rack on the dome steel structure platform;

[0016] Step 2: Install other working devices of the system; install lifting devices at the four corners of the grape rack, install driving mechanisms between two lifting devices along the length direction of the grape rack, and fix the output end of the transmission shaft of the driving mechanism to the input end of the roller of the lifting device;

[0017] A drum brake is fixed on one side of the driving mechanism and cooperates with it; a disc brake is fixed on one side of the lifting device and cooperates with it;

[0018] Step 3: Install the electric control cabinet; install the electric control cabinet on the grape rack, and electrically connect it to the drive mechanism, and wirelessly connect the electric control cabinet to the remote control;

[0019] Step 4: Assemble the screen; assemble the screen frame and the screen body on the ground below the grape rack;

[0020] Step 5: Fix the movable pulley; weld the movable pulley at the position corresponding to the roller on the bucket screen frame;

[0021] Step 6: Lower the cable; pass one end of the cable around the movable pulley and fix it to the fixing buckle of the lifting device;

[0022] Step 7: Lift the bucket screen; lift the bucket screen to the designed position.

[0023] Compared with the prior art, the advantages and positive effects of the present invention are: (1) The lifting system has a simple structure and is integrated on the grape rack, which is easy to install and small in size. Two people can install the lifting system on the dome steel structure platform using a lift. The construction process does not occupy a site, reduces labor costs, and significantly improves efficiency. (2) The bucket screen is installed using the lifting system, and the height of the bucket screen is adjustable. When the screen or large components are repaired or replaced, the bucket screen can be placed on the ground without setting up scaffolding, which greatly reduces the workload and work intensity. (3) Wireless control is performed using a remote control. During maintenance, workers do not need to take a lift to the lifting system, and the lifting and lowering of the bucket screen can be directly controlled on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the following briefly introduces the drawings required for describing the embodiment.

[0025] Figure 1 This is a side view of the connection between this system and the bucket screen;

[0026] Figure 2 This is a top view of the connection between this system and the dome steel structure platform;

[0027] Figure 3 It is a schematic diagram of the driving mechanism and the lifting device;

[0028] Figure 4 It is a top view of the connection between the bucket screen and the movable pulley;

[0029] Figure 5 This is a three-dimensional picture of the grape trellis;

[0030] Figure 6 Schematic diagram of steel grating laying.

[0031] 1-Dome steel structure platform;

[0032] 2-bucket screen, 21-bucket screen frame, 22-screen body;

[0033] 3-grape rack, 31-grape rack body, 32-welding claw, 33-steel grating plate;

[0034] 4-driving mechanism, 41-motor, 42-reducer, 43-transmission shaft;

[0035] 5-lifting device, 51-drum, 52-cable, 53-fixing buckle;

[0036] 6- movable pulley;

[0037] 7-Disc brake;

[0038] 8-Drum brake;

[0039] 9-Electrical control cabinet. DETAILED DESCRIPTION

[0040] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0042] Example 1

[0043] The following is combined with Figure 1-6 The present invention is further described as follows: Figure 1 and 2 As shown, a large-scale bucket screen integrated lifting system is arranged on a dome steel structure platform 1, and a bucket screen 2 is connected thereto below, and the lifting system comprises a grape rack 3, a driving mechanism 4, a lifting device 5 and an electric control cabinet 9; the grape rack 3 is horizontally arranged on the dome steel structure platform 1, and the driving mechanism 4 and the lifting device 5 are both arranged on the grape rack 3; the driving mechanism 4 is electrically connected to the electric control cabinet 9; the lifting device 5 comprises a drum 51, a cable 52 and a fixing buckle 53; a movable pulley 6 is also provided on the bucket screen 2; the output end of the driving mechanism 4 is fixedly connected to the input end of the drum 51, one end of the cable 52 is wound around the drum 51, and the other end passes around the movable pulley 6 and is fixedly connected to the fixing buckle 53.

[0044] like Figure 1 and 2 As shown, there are four lifting devices 5 and four movable pulleys 6, and the four lifting devices 5 are respectively arranged at the four corners of the grape rack 3, and the positions of the four movable pulleys 6 on the bucket screen 2 correspond to the positions of the four lifting devices 5 on the grape rack 3.

[0045] The driving mechanism 4 drives the drum 51 of the lifting device 5 to rotate and retract and release the cable 52, thereby controlling the movable pulley 6 to move the bucket screen 2 up and down.

[0046] like Figure 2 As shown, there are two driving mechanisms 4, which are respectively arranged between two lifting devices 5 along the length direction of the grape rack 3, and each of the driving mechanisms 4 is provided with two transmission shafts 43, and the output ends of the two transmission shafts 43 are respectively fixedly connected to the input ends of the rollers 51 of the two lifting devices 5;

[0047] As shown in 3, the driving mechanism 4 also includes a motor 41 and a reducer 42. The extended end of the output shaft of the motor 41 is fixedly connected to the input end of the reducer 42. The reducer 42 has two output ends, which are respectively fixedly connected to the input ends of two transmission shafts 43; the motor 41 is electrically connected to the electric control cabinet 9.

[0048] The electric control cabinet 9 controls the rotation of the motor 41 , and the motor 41 is connected to the reducer 42 to reduce the rotation speed to a suitable range, and then controls the rotation of the roller 51 through the transmission shaft 43 to realize the movement of the bucket screen 2 .

[0049] like Figure 4 As shown, the bucket screen 2 includes a bucket screen frame 21 and a screen body 22 . The screen body 22 is erected on the side of the bucket screen frame 21 , and the movable pulley 6 is arranged on the bucket screen frame 21 .

[0050] As shown in FIG. 3 , a disc brake 7 is also included; there are four disc brakes 7 , which are respectively arranged on one side of the drum 51 of the four lifting devices 5 ; the brake disc of the disc brake 7 matches with the drum 51 .

[0051] As shown in 3 , it also includes a drum brake 8 ; there are two drum brakes 8 , which are respectively arranged on one side of the output shafts of the two motors 41 ; the brake shoes of the drum brake 8 match the output shafts of the motors 41 .

[0052] like Figure 5 and 6 As shown, the grape rack 3 includes a grape rack body 31, a plurality of welding claws 32 and a steel grating plate 33; the plurality of welding claws 32 are symmetrically fixed on the outside of the grape rack body 31 and are all welded to the dome steel structure platform 1; the steel grating plate 33 is laid on the upper surface of the grape rack body 31.

[0053] A construction method for a large bucket screen integrated lifting system, characterized in that it comprises the following steps:

[0054] Step 1: Install the grape rack 3; according to the design position of the engineering drawing, use a lift to fix the grape rack 3 on the dome steel structure platform 1;

[0055] First, use a lift to lift the prefabricated steel components onto the dome steel structure platform 1, then assemble them into a grape rack 31, and then assemble the welding claws 32. Next, remove the paint from the welding points on the dome steel structure platform 1 that need to be welded with the welding claws 32. Finally, weld the welding claws 32 to the dome steel structure platform 1, and then lay the steel grating plate 33.

[0056] Step 2: Install other working devices of the system; install lifting devices 5 at the four corners of the grape rack 3, respectively, install driving mechanisms 4 between two lifting devices 5 along the length direction of the grape rack 3, and fix the output end of the transmission shaft 43 of the driving mechanism 4 to the input end of the roller 51 of the lifting device 5;

[0057] A drum brake 8 is fixed on one side of the driving mechanism 4 and cooperates therewith; a disc brake 7 is fixed on one side of the lifting device 5 and cooperates therewith.

[0058] Step 3: Install the electric control cabinet 9; Install the electric control cabinet 9 on the grape rack 3 and electrically connect it to the driving mechanism 4;

[0059] The electric control cabinet 9 can control the start and stop of the motor 41 of the driving mechanism 4.

[0060] Step 4: Assemble the bucket screen 2; assemble the bucket screen frame 21 and the screen body 22 on the ground below the grape rack 3;

[0061] Step 5: Fix the movable pulley 6; weld the movable pulley 6 at the position corresponding to the roller 51 on the bucket screen frame 21;

[0062] Step 6: Lower the cable 52; pass one end of the cable 52 around the movable pulley 6 and fix it to the fixing buckle 53 of the lifting device 5;

[0063] Step seven: lift the bucket screen 2; lift the bucket screen 2 to the designed position.

[0064] The worker controls the electric control cabinet 9 to lift the bucket screen 2 to the designed height. After installing the bucket screen 2, the worker takes the elevator down to complete the installation. When repairing or replacing, the worker takes the elevator to the lifting system, controls the electric control cabinet 9 to lower the bucket screen 2 to the ground, and then lifts it to its original position after repair or replacement.

[0065] Example 2

[0066] The difference between this embodiment and embodiment 1 is that it further includes a remote controller, and a signal receiving device is also provided in the electric control cabinet 9, and the signal receiving device is wirelessly connected to the remote controller; in step seven, the remote controller is used to control the lifting system to lift the bucket screen 2 to the designed position.

[0067] During maintenance and replacement, workers use the remote control to wirelessly control the lifting system, control the electric control cabinet 9 to lower the bucket screen 2 to the ground, and then use the remote control to lift the bucket screen 2 to its original position after maintenance and replacement.

[0068] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A large-scale bucket screen integrated lifting system, the lifting system is arranged on a dome steel structure platform (1) and is connected to a bucket screen (2) below, characterized in that: The lifting system comprises a grape rack (3), a driving mechanism (4), a lifting device (5) and an electric control cabinet (9); The grape rack (3) is horizontally arranged on the dome steel structure platform (1), and the driving mechanism (4) and the lifting device (5) are both arranged on the grape rack (3); the driving mechanism (4) is electrically connected to the electric control cabinet (9); The lifting device (5) comprises a drum (51), a cable (52) and a fixing buckle (53); a movable pulley (6) is also provided on the bucket screen (2); the output end of the driving mechanism (4) is fixedly connected to the input end of the drum (51); one end of the cable (52) is wound around the drum (51), and the other end passes around the movable pulley (6) and is fixedly connected to the fixing buckle (53); There are four lifting devices (5) and four movable pulleys (6), and the four lifting devices (5) are respectively arranged at the four corners of the grape rack (3), and the positions of the four movable pulleys (6) on the bucket screen (2) correspond to the positions of the four lifting devices (5) on the grape rack (3); There are two driving mechanisms (4), which are respectively arranged between two lifting devices (5) along the length direction of the grape rack (3); each driving mechanism (4) is provided with two transmission shafts (43); the output ends of the two transmission shafts (43) are respectively fixedly connected to the input ends of the rollers (51) of the two lifting devices (5); The driving mechanism (4) further comprises a motor (41) and a reducer (42), wherein the extended end of the output shaft of the motor (41) is fixedly connected to the input end of the reducer (42), and the reducer (42) has two output ends, which are respectively fixedly connected to the input ends of two transmission shafts (43); The motor (41) is electrically connected to the electric control cabinet (9); It also includes a drum brake (8); there are two drum brakes (8), which are respectively arranged on one side of the output shaft of the two motors (41); the brake shoe of the drum brake (8) cooperates with the output shaft of the motor (41); The grape rack (3) comprises a grape rack body (31), a plurality of welding claws (32) and a steel grating plate (33); the plurality of welding claws (32) are symmetrically fixed on the outside of the grape rack body (31) and are all welded to the dome steel structure platform (1); the steel grating plate (33) is laid on the upper surface of the grape rack body (31).

2. A large bucket screen integrated lifting system according to claim 1, characterized in that: The bucket screen (2) comprises a bucket screen frame (21) and a screen body (22); the screen body (22) is arranged on a side of the bucket screen frame (21); and the movable pulley (6) is arranged on the bucket screen frame (21).

3. A large-scale bucket screen integrated lifting system according to claim 2, characterized in that: It also includes a disc brake (7); there are four disc brakes (7), which are respectively arranged on one side of the rollers (51) of the four lifting devices (5); the brake disc of the disc brake (7) cooperates with the roller (51).

4. A large-scale bucket screen integrated lifting system according to claim 3, characterized in that: A remote controller is also included, and a signal receiving device is also provided in the electric control cabinet (9), and the signal receiving device is wirelessly connected to the remote controller.

5. A construction method for a large bucket screen integrated lifting system, characterized in that: The large-scale bucket screen integrated lifting system according to claim 4 is used to lift the bucket screen, comprising the following steps: Step 1: Install the grape rack (3); according to the design position of the engineering drawing, use a lift to fix the grape rack (3) on the dome steel structure platform (1); Step 2: installing other working devices of the system; installing lifting devices (5) at the four corners of the grape rack (3), installing driving mechanisms (4) between two lifting devices (5) along the length direction of the grape rack (3), and fixing the output end of the transmission shaft (43) of the driving mechanism (4) to the input end of the roller (51) of the lifting device (5); A drum brake (8) is fixed on one side of the driving mechanism (4) and cooperates therewith; a disc brake (7) is fixed on one side of the lifting device (5) and cooperates therewith; Step three: installing the electric control cabinet (9); installing the electric control cabinet (9) on the grape rack (3), electrically connecting the electric control cabinet (9) to the driving mechanism (4), and wirelessly connecting the electric control cabinet (9) to the remote controller; Step 4: Assemble the bucket screen (2); assemble the bucket screen frame (21) and the screen body (22) on the ground below the grape rack (3); Step 5: Fixing the movable pulley (6); welding the movable pulley (6) at a position corresponding to the roller (51) on the bucket screen frame (21); Step 6: lowering the cable (52); passing one end of the cable (52) around the movable pulley (6) and fixedly connecting it to the fixing buckle (53) of the lifting device (5); Step 7: Lift the bucket screen (2); lift the bucket screen (2) to the designed position.

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