Hoisting device and display screen

Abstract

The utility model discloses a hoisting device and a display screen, the display screen comprises a box frame, the hoisting device comprises a hoisting beam main body, a first side lock assembly and a second side lock assembly capable of being matched with the first side lock assembly, and the first side lock assembly and the second side lock assembly are arranged at the two ends of the hoisting beam main body respectively. The splicing assembly is used for splicing the two adjacent hanging beam main bodies; the first side lock assembly is provided with a first connecting structure, the second side lock assembly is provided with a second connecting structure, and the first connecting structure and the second connecting structure are used for being matched with a connecting rod on the box frame so that the box frame can be fixed to the hanging beam body. According to the utility model, an operator can connect two adjacent box body frames together conveniently, manpower and material resources for installation and maintenance are saved, the working efficiency is improved, even the possibility of obvious abutted seams between the box body frames is reduced, and the display effect of the display screen is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of display screen splicing, in particular to a hoisting device and a display screen. Background Art

[0002] With the progress of technology, as the main carrier of media dissemination, LED display screens are widely used in places such as conferences, stages, studios, and command centers due to their characteristics of fast and flexible installation.

[0003] The traditional common combined display screen for hoisting is composed of a plurality of independent box frames. The connection method during combination is by providing two protruding connecting rods on the top surface of the box frame. After the connecting rods are inserted into the interior of the hoisting device, they are connected together through pins. The existing hoisting devices usually separately arrange the side lock components for realizing the splicing of the hanging beam main body and the connection structure for fixing the box frame. When using the hoisting device to install the display screen, it is necessary to not only control the connection situation between the side lock components and the left and right two hanging beam main bodies, but also control the connection situation between the connection structure and the box frame, which greatly affects the installation efficiency of the display screen. Summary of the Utility Model

[0004] The utility model provides a hoisting device and a display screen, aiming to solve the problem of low installation efficiency of the display screen.

[0005] According to the first aspect provided by the utility model, the utility model provides a hoisting device for installing a display screen. The display screen includes a box frame. The hoisting device includes a hanging beam main body, a first side lock component, and a second side lock component capable of cooperating with the first side lock component. The first side lock component and the second side lock component are respectively arranged at both ends of the hanging beam main body for realizing the splicing between two adjacent hanging beam main bodies.

[0006] The first side lock component is provided with a first connection structure, and the second side lock component is provided with a second connection structure. The first connection structure and the second connection structure are used to cooperate with the connecting rod on the box frame to fix the box frame on the hanging beam main body.

[0007] In the hoisting device according to an embodiment of the utility model, the first side lock component includes a connection component and a first side lock seat having a first through hole. The second side lock component includes a second side lock seat having a second through hole. The connection component is provided with a first clamping portion and a second clamping portion. The first clamping portion and the second clamping portion respectively cooperate with the first through hole and the second through hole for realizing the splicing of the first side lock seat and the second side lock seat of the adjacent hoisting device.

[0008] In the hoisting device according to an embodiment of the present utility model, the connection assembly includes a side lock connection block and a side lock rotating rod. The side lock connection block is telescopically installed in the first side lock seat. The side lock rotating rod is rotatably installed in the side lock connection block. The first clamping portion and the second clamping portion are provided on the side lock rotating rod.

[0009] In the hoisting device according to an embodiment of the present utility model, a first connection port is provided on the first side lock seat, and a second connection port is provided on the second side lock seat. The shapes of the first connection port and the second connection port are adapted to the shape of the side lock connection block.

[0010] In the hoisting device according to an embodiment of the present utility model, a guide chute and a guide member located on the guide chute are provided on the side lock connection block. One end of the guide member away from the guide chute is connected to the first side lock seat.

[0011] In the hoisting device according to an embodiment of the present utility model, the connection assembly includes a positioning member. A positioning hole cooperating with the positioning member is provided on the second side lock seat. The positioning member is installed on the side lock connection block. The positioning member is clamped with the positioning hole when the side lock connection block is connected to the second side lock seat.

[0012] In the hoisting device according to an embodiment of the present utility model, the connection assembly includes a stretching handle. The stretching handle is provided at one end of the side lock rotating rod extending out of the side lock connection block.

[0013] In the hoisting device according to an embodiment of the present utility model, both the first connection structure and the second connection structure include a pin and a pin seat. Connection holes for the connecting rod to pass through are provided on the first side lock seat and the second side lock seat. The pin is installed on the first side lock seat and the second side lock seat through the pin seat for locking the connecting rod passing through the connection hole.

[0014] In the hoisting device according to an embodiment of the present utility model, the hoisting device includes a suspension structure, a first connection block, and a second connection block. The main beam body includes a first support plate and a second support plate. Both ends of the first side lock seat, the first connection block, the suspension structure, the second connection block, and the second side lock seat are connected to both sides of the first support plate and the second support plate and are sequentially arranged along the length direction of the main beam body.

[0015] According to the second aspect provided by the present utility model, the present utility model provides a display screen, including a box frame and the above-mentioned hoisting device. The box frame is installed on the hoisting device through the first connection structure and the second connection structure.

[0016] The technical solutions provided by the embodiments of the present application may include the following beneficial effects: The present application designs a hoisting device and a display screen. The hoisting device includes a beam main body, a first side lock assembly, and a second side lock assembly that can cooperate with the first side lock assembly. The first side lock assembly and the second side lock assembly are respectively arranged at both ends of the beam main body for splicing between adjacent two beam main bodies. Among them, a first connection structure is provided on the first side lock assembly, and a second connection structure is provided on the second side lock assembly. The first connection structure and the second connection structure are used to cooperate with the connecting rod on the box frame to fix the box frame on the beam main body. Through the integrated design of the first connection structure, the second connection structure, the first side lock assembly, and the second side lock assembly, the present application can not only reduce the splicing difficulty between the box frames, but also control the splicing between two beam main bodies and the splicing between the box frame and the beam main body through the first side lock assembly and the second side lock assembly at the same time, which greatly facilitates the operator to connect two adjacent box frames together, saves the manpower and material resources for installation and maintenance, improves work efficiency, and even reduces the possibility of obvious seams between the box frames, ensuring the display effect of the display screen.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a schematic structural diagram of the display screen in the first embodiment of the present application;

[0020] Figure 2 is Figure 1 the exploded view of the display screen in;

[0021] Figure 3 is Figure 1 the schematic structural diagram of the hoisting device in;

[0022] Figure 4 is Figure 3 the exploded view of the hoisting device in;

[0023] Figure 5 is Figure 4 the exploded view of the first side lock assembly in;

[0024] Figure 6 is Figure 5Schematic diagram of the decomposition of the connection components therein;

[0025] Figure 7 is Figure 6 Schematic diagram of the structure of the edge lock connection block therein;

[0026] Figure 8 is Figure 6 Schematic diagram of the structure of the first edge lock seat therein;

[0027] Figure 9 is Figure 6 Schematic diagram of the first edge lock seat from another angle therein;

[0028] Figure 10 is Figure 6 Schematic diagram of the decomposition of the first connection structure therein;

[0029] Figure 11 is Figure 4 Schematic diagram of the structure of the second edge lock component therein.

[0030] Explanation of reference numerals:

[0031] 100, hoisting device;

[0032] 10, main beam body; 11, first support plate; 12, second support plate;

[0033] 20, first edge lock component; 21, first edge lock seat; 211, first connection port; 212, first through hole; 213, threaded through hole; 214, pin hole; 215, connection hole; 22, connection component; 221, edge lock rotating rod; 2211, first clamping portion; 2212, second clamping portion; 222, lock connection block; 2221, guide chute; 2222, guide member; 2223, first movable slot; 2224, second movable slot; 2225, rotating rod mounting hole; 223, tension handle; 224, positioning member; 23, first connection structure; 231, pin seat; 232, pin; 233, elastic member;

[0034] 30, second edge lock component; 31, second edge lock seat; 311, second connection port; 312, second through hole; 313, positioning hole; 32, second connection structure;

[0035] 40, suspension structure;

[0036] 50, first connection block;

[0037] 60, second connection block;

[0038] 200, box body frame; 201, connecting rod; 2011, pin hole. Detailed implementation method

[0039] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0040] It should also be understood that the terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments. In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0041] Next, some embodiments of the present application will be described in detail in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0042] As Figures 1 to 11 shown, according to the first aspect of the present application, the present application provides a hoisting device 100 for installing a display screen. The display screen includes a display module and a box frame 200, and the display module is installed on the box frame 200. Among them, the hoisting device 100 includes a hanging beam main body 10, a first side lock assembly 20, and a second side lock assembly 30 that can cooperate with the first side lock assembly 20. The first side lock assembly 20 and the second side lock assembly 30 are respectively arranged at both ends of the hanging beam main body 10 and are used to realize the splicing between adjacent two hanging beam main bodies 10, so that a plurality of box frames 200 can be spliced in the length direction of the hanging beam main body 10 through the hoisting device 100.

[0043] In an alternative embodiment, a first connecting structure 23 is provided on the first side lock assembly 20, and a second connecting structure 32 is provided on the second side lock assembly 30. The first connecting structure 23 and the second connecting structure 32 are used to cooperate with the connecting rod 201 on the box body frame 200 to fix the box body frame 200 on the hanging beam main body 10. Through the integrated design of the first connecting structure 23 and the second connecting structure 32 with the first side lock assembly 20 and the second side lock assembly 30, the present application not only reduces the splicing difficulty between the box body frames 200, but also can control the splicing between the two hanging beam main bodies 10 and the splicing between the box body frame 200 and the hanging beam main body 10 simultaneously through the first side lock assembly 20 and the second side lock assembly 30, greatly facilitating the operator to connect two adjacent box body frames 200 together, saving the manpower and material resources for installation and maintenance, improving work efficiency, and even reducing the possibility of obvious seams between the box body frames 200, ensuring the display effect of the display screen.

[0044] Exemplarily, two protruding connecting rods 201 are provided on the top surface of the box body frame 200, and pin holes 2011 are provided on the connecting rods 201. When the connecting rods 201 are inserted into the interior of the hoisting device 100, the insertion pins 232 in the first connecting structure 23 and the second connecting structure 32 pass through the pin holes 2011 to lock the box body frame 200 and the hanging beam main body 10 together. Among them, two adjacent hanging beam main bodies 10 can also cooperate through the first side lock assembly 20 provided on one of the hanging beam main bodies 10 and the second side lock assembly 30 provided on the other hanging beam main body 10, so that the two adjacent hanging beam main bodies 10 can be tightly connected together. Therefore, when using the hoisting device 100 to install the display screen, it is not necessary to control the connection situation between two adjacent hanging beam main bodies 10 and the connection situation between the box body frame 200 and the hanging beam main body 10 at two different positions, avoiding obvious seams between the box body frames 200 caused by connection problems at two different positions, thus affecting the display effect of the display screen. The structure is simple and compact, the installation and maintenance are convenient and fast, greatly facilitating the installer to connect two adjacent box body frames 200 together, saving the manpower and material resources for installation and maintenance, improving work efficiency, and having a wide application prospect.

[0045] In an alternative embodiment, the first side lock assembly 20 includes a connecting component 22 and a first side lock seat 21 having a first through hole 212, and the second side lock assembly 30 includes a second side lock seat 31 having a second through hole 312. The connecting component 22 is provided with a first clamping portion 2211 and a second clamping portion 2212. The first clamping portion 2211 and the second clamping portion 2212 respectively cooperate with the first through hole 212 and the second through hole 312 to realize the splicing of the first side lock seat 21 and the second side lock seat 31 of the adjacent hoisting device 100. Such a structure makes it easier for the operator to manually control the connecting component 22, making the installation and disassembly more convenient.

[0046] Exemplarily, the connecting component 22 is telescopically installed on the first side lock base 21, and the first clamping portion 2211 and the second clamping portion 2212 are arranged at intervals along the length direction of the connecting component 22. When two adjacent hanging beam bodies 10 need to be spliced together, the connecting component 22 is moved from the first side lock base 21 to the second side lock base 31, and then the first clamping portion 2211 and the second clamping portion 2212 are controlled so that the first clamping portion 2211 can be clamped in the first through hole 212 and the second clamping portion 2212 can be clamped in the second through hole 312 to achieve locking. When two adjacent hanging beam bodies 10 need to be disassembled, the first clamping portion 2211 is separated from the first through hole 212, and the second clamping portion 2212 is separated from the second through hole 312, so that the connecting component 22 can be moved out of the second side lock base 31 and retracted into the first side lock base 21, ensuring that the connecting component 22 does not affect the disassembly of two adjacent hanging beam bodies 10. The installation and maintenance are convenient and fast, without the need for multiple people to cooperate, saving human resources and reducing costs, and having high work efficiency.

[0047] In an alternative embodiment, the connecting component 22 includes a side lock connecting block 222 and a side lock rotating rod 221. The side lock connecting block 222 is telescopically installed in the first side lock base 21, the side lock rotating rod 221 is rotatably installed in the side lock connecting block 222, and the first clamping portion 2211 and the second clamping portion 2212 are arranged on the side lock rotating rod 221, so that the lock connecting block 222 can move the side lock rotating rod 221 together between the first side lock base 21 and the second side lock base 31, and after the side lock rotating rod 221 moves to the second side lock base 31, the side lock rotating rod 221 is rotated so that the first clamping portion 2211 and the second clamping portion 2212 can be correspondingly clamped in the first through hole 212 and the second through hole 312, thereby realizing the splicing between two adjacent hoisting devices 100, saving time and effort, improving work efficiency, and having a wide application prospect.

[0048] In an alternative embodiment, a first connection port 211 is provided on the first side lock base 21, a second connection port 311 is provided on the second side lock base 31, and the shapes of the first connection port 211 and the second connection port 311 are adapted to the shape of the side lock connecting block 222, so that the side lock connecting block 222 can reciprocate within the first connection port 211 and the second connection port 311, and at the same time, the stability of the connection between the side lock connecting block 222 and the first connection port 211 and the second connection port 311 is ensured.

[0049] In an alternative embodiment, a guide chute 2221 and a guide member 2222 located on the guide chute 2221 are provided on the side lock connecting block 222. One end of the guide member 2222 away from the guide chute 2221 is connected to the first side lock base 21, which plays a guiding role, reduces the error rate, and improves the installation efficiency.

[0050] Exemplarily, the guide member 2222 has a threaded structure. A threaded through hole 213 is provided on the side lock connection block 222. The guide member 2222 is fixed on the first side lock seat 21 through the threaded structure and extends out from the first connection port 211, and is used to cooperate with the guide chute 2221, so that the side lock connection block 222 can move along the extending direction of the guide chute 2221 under the cooperation of the guide member 2222 and the guide chute 2221.

[0051] In an alternative embodiment, a rotating rod mounting hole 2225, a first movable slot 2223 and a second movable slot 2224 are provided on the side lock connection block 222. The side lock rotating rod 221 is movably installed in the rotating rod mounting hole 2225, and the first clamping portion 2211 and the second clamping portion 2212 are correspondingly movable in the first movable slot 2223 and the second movable slot 2224.

[0052] In an alternative embodiment, the connection assembly 22 includes a stretching handle 223. The stretching handle 223 is arranged at one end of the side lock rotating rod 221 extending out of the side lock connection block 222, and is used to control the reciprocating movement of the side lock connection block 222 in the first connection port 211 and the second connection port 311. After the side lock connection block 222 moves to the second side lock seat 31, the stretching handle 223 controls the rotation of the side lock rotating rod 221 so that the first clamping portion 2211 and the second clamping portion 2212 can be correspondingly clamped in the first through hole 212 and the second through hole 312 to lock two adjacent hanging beam bodies 10 together.

[0053] In an alternative embodiment, the connection assembly 22 includes a positioning member 224. A positioning hole 313 cooperating with the positioning member 224 is provided on the second side lock seat 31. The positioning member 224 is installed on the side lock connection block 222. When the side lock connection block 222 is connected to the second side lock seat 31, the positioning member 224 is clamped with the positioning hole 313 and cooperates with the guide chute 2221 to realize the positioning and locking functions, thereby improving the installation efficiency and accuracy. Among them, the positioning member 224 includes but is not limited to a positioning ball. After the side lock connection block 222 is inserted into the second connection port 311 of the adjacent hanging beam body 10, the positioning ball can be directly inserted into the positioning hole 313.

[0054] In an alternative embodiment, both the first connection structure 23 and the second connection structure 32 include a latch pin 232 and a latch seat 231. Connection holes 215 for the connecting rod 201 to pass through are provided on the first side lock seat 21 and the second side lock seat 31. The latch pin 232 is installed on the first side lock seat 21 and the second side lock seat 31 through the latch seat 231, and is used to lock the connecting rod 201 passing through the connection holes 215, so as to realize the fixed connection between the box body frame 200 and the hanging beam main body 10. Among them, latch holes 214 for the latch pin 232 to move are provided on the first side lock seat 21 and the second side lock seat 31, and the extending direction of the latch holes 214 is perpendicular to the extending direction of the connection holes 215.

[0055] In an alternative embodiment, the first connection structure 23 and the second connection structure 32 further include an elastic member 233. The elastic member 233 is arranged on the latch seat 231, and both ends of the elastic member 233 are respectively abutted against the latch pin 232 and the latch seat 231, and are used to realize the automatic reset of the latch pin 232.

[0056] In an alternative embodiment, the hoisting device 100 includes a suspension structure 40, a first connection block 50 and a second connection block 60. The hanging beam main body 10 includes a first support plate 11 and a second support plate 12. Both ends of the first side lock seat 21, the first connection block 50, the suspension structure 40, the second connection block 60 and the second side lock seat 31 are respectively connected to both sides of the first support plate 11 and the second support plate 12 and are arranged in sequence along the length direction of the hanging beam main body 10.

[0057] In an alternative embodiment, the hook in the suspension structure 40 can be an ordinary hook, or a hook or a sling with other structures, as long as the hanging beam main body 10 can be suspended on the truss. For example, a hook similar to a hook, or a clip with a clamping function is used as a hook, etc. During use, directly hook the hook on the truss or clamp it on the truss.

[0058] As Figures 1 to 11 shown, according to the second aspect of the present application, the present application provides a display screen, including a box body frame 200 and the above-mentioned hoisting device 100. The box body frame 200 is installed on the hoisting device 100 through the first connection structure 23 and the second connection structure 32.

[0059] In the description of the present application, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. It may be a mechanical connection or an electrical connection. It may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0060] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0061] The above disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described above. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0062] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A hoisting device for installing a display screen, the display screen comprising a box frame, characterized in that, The hoisting device includes a lifting beam body, a first side lock assembly, and a second side lock assembly that can cooperate with the first side lock assembly. The first side lock assembly and the second side lock assembly are respectively arranged at both ends of the lifting beam body for splicing between two adjacent lifting beam bodies. The first side lock assembly is provided with a first connection structure, and the second side lock assembly is provided with a second connection structure. The first connection structure and the second connection structure are used to cooperate with a connecting rod on the box body frame to fix the box body frame on the lifting beam body.

2. The hoisting device according to claim 1, wherein The first side lock assembly includes a connection assembly and a first side lock seat having a first through hole. The second side lock assembly includes a second side lock seat having a second through hole. The connection assembly is provided with a first clamping portion and a second clamping portion. The first clamping portion and the second clamping portion respectively cooperate with the first through hole and the second through hole to splice the first side lock seat with the second side lock seat of the adjacent hoisting device.

3. The hoisting device according to claim 2, wherein, The connection assembly includes a side lock connection block and a side lock rotating rod. The side lock connection block is telescopically installed in the first side lock seat, and the side lock rotating rod is rotatably installed in the side lock connection block. The first clamping portion and the second clamping portion are arranged on the side lock rotating rod.

4. The hoisting device according to claim 3, wherein, The first side lock seat is provided with a first connection port, and the second side lock seat is provided with a second connection port. The shapes of the first connection port and the second connection port are adapted to the shape of the side lock connection block.

5. The hoisting device according to claim 3, characterized in that, The side lock connection block is provided with a guide chute and a guide member located on the guide chute. One end of the guide member away from the guide chute is connected to the first side lock seat.

6. The hoisting device according to claim 3, characterized in that The connection assembly includes a positioning member. The second side lock seat is provided with a positioning hole that cooperates with the positioning member. The positioning member is installed on the side lock connection block, and the positioning member is clamped with the positioning hole when the side lock connection block is connected to the second side lock seat.

7. The hoisting device according to claim 3, wherein, The connection assembly includes a stretching handle. The stretching handle is arranged at one end of the side lock rotating rod extending out of the side lock connection block.

8. The hoisting device according to claim 2, characterized in that, Both the first connection structure and the second connection structure include a bolt and a bolt seat. The first side lock seat and the second side lock seat are provided with connection holes for the connecting rod to pass through. The bolt is installed on the first side lock seat and the second side lock seat through the bolt seat for locking the connecting rod passing through the connection hole.

9. The hoisting device according to claim 2, wherein, The hoisting device includes a suspension structure, a first connection block, and a second connection block. The lifting beam body includes a first support plate and a second support plate. Both ends of the first side lock seat, the first connection block, the suspension structure, the second connection block, and the second side lock seat are respectively connected to both sides of the first support plate and the second support plate and are sequentially arranged along the length direction of the lifting beam body.

10. A display screen, characterized in that, It includes a box body frame and the hoisting device according to any one of claims 1-9. The box body frame is installed on the hoisting device through the first connection structure and the second connection structure.

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