Assembling device of display screen

Abstract

The utility model provides an assembling device of a display screen. The assembling device comprises a main frame, a telescopic frame and a telescopic matching piece. Wherein the main frame is provided with a storage cavity and a telescopic cavity, and the telescopic cavity extends in the length direction of the main frame; the telescopic frame is telescopically arranged on one side of the main frame in the length direction, and the top surface of the telescopic frame is flush with the top surface of the main frame to form a supporting surface for placing a display screen; one end of the telescopic matching piece is telescopically arranged in the telescopic cavity, the other end of the telescopic matching piece is connected with the telescopic frame, and the telescopic matching piece extends towards the outer side of the telescopic cavity, so that the telescopic frame is far away from the main frame, the telescopic matching piece retracts towards the inner side of the telescopic cavity, and the telescopic frame is close to the main frame. The telescopic frame adjusts the telescopic length between the telescopic frame and the main frame through the telescopic matching piece so as to adapt to LED display screen assemblies with different lengths and sizes.

Description

Technical Field

[0001] This utility model relates to the field of display screen technology, and in particular to a display screen assembly device. Background Technology

[0002] Light-emitting diode (LED) displays feature high brightness, vibrant colors, high luminous efficiency, high contrast, short response time, wide operating temperature range, and low energy consumption. They are widely used in stage display equipment, advertising display equipment, data visualization display equipment, and commercial display equipment.

[0003] Currently, LED display products vary widely, leading to inconsistent assembly processes and components, which increases the difficulty of assembling LED displays. This is especially true for LED conference screens, whose components are large and complex. The length of the bottom bezel varies from a few tens of centimeters to several meters. On-site, these bottom bezels are often placed on pallets or supported by foam, but due to their length, they are unstable and prone to tipping over and falling off. The haphazard placement of various materials on-site also increases the risk of components falling off; waiting time and turnover losses during assembly are significant, resulting in low production efficiency. Furthermore, the testing procedures for LED displays are quite complex, lacking professional handling and storage tools, and the connection points of various cables appear disorganized. Utility Model Content

[0004] The purpose of this invention is to provide an assembly device for LED displays, which can standardize and simplify the assembly process of LED displays and improve work efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an assembly device for a display screen, wherein the assembly device includes: a main frame, the main frame having a storage cavity and a telescopic cavity, the telescopic cavity extending along the length direction of the main frame; a telescopic frame, the telescopic frame being telescopically disposed on one side of the length direction of the main frame, the top surface of the telescopic frame being flush with the top surface of the main frame to form a support surface for placing the display screen; and a telescopic coupling component, one end of the telescopic coupling component being telescopically disposed in the telescopic cavity, the other end being connected to the telescopic frame, the telescopic coupling component extending outward toward the telescopic cavity to move the telescopic frame away from the main frame, the telescopic coupling component retracting inward toward the telescopic cavity to move the telescopic frame closer to the main frame.

[0006] In one embodiment, the storage cavity and the telescopic cavity are spaced apart along the height direction of the main frame.

[0007] In one embodiment, a linear guide rail and a slider are provided between the telescopic fitting and the telescopic cavity, and the slider slides in conjunction with the linear guide rail.

[0008] In one embodiment, the slider is fixedly disposed in the telescopic cavity, and the telescopic mating component includes a linear guide rail, which protrudes from the telescopic frame and extends along the length direction of the main frame, and the linear guide rail is slidably embedded in the slider.

[0009] In one embodiment, the assembly device further includes a locking member, wherein the locking member is disposed on the main frame and located outside the telescopic cavity, and the locking member is capable of locking or unlocking the telescopic movement of the telescopic mating member relative to the main frame.

[0010] In one embodiment, the assembly device further includes an auxiliary telescopic frame and an auxiliary telescopic coupling component. The auxiliary telescopic frame is telescopically disposed on the side of the telescopic frame away from the main frame. The top surface of the auxiliary telescopic frame is flush with the top surface of the telescopic frame. One end of the auxiliary telescopic coupling component is telescopically disposed on the telescopic frame, and the other end is connected to the auxiliary telescopic frame. The auxiliary telescopic coupling component can approach or move away from the telescopic frame, and as the telescopic frame moves, it can partially extend into or exit the interior of the same telescopic cavity.

[0011] In one embodiment, within the internal space of the telescopic cavity, auxiliary telescopic fittings and telescopic fittings are spaced apart along the height direction of the main frame.

[0012] In one embodiment, the assembly device further includes a storage box located in the storage cavity, the storage box having multiple partitions inside, the multiple partitions dividing into multiple independent storage compartments; or, the bottom of the main frame is provided with rollers, and the bottom of the telescopic frame is provided with rollers.

[0013] In one embodiment, the assembly device further includes a first plate disposed on the top of the main frame and a second plate disposed on the top of the telescopic frame, the first plate and the second plate being flush with each other; the assembly device further includes a test function table, the test function table being disposed on the side of the main frame away from the telescopic frame, the test function table including a support rod and a third plate, the support rod being disposed on the main frame, the third plate being hinged to the top of the support rod, and in the height direction of the main frame, the third plate being higher than the first plate and the second plate.

[0014] In one embodiment, a plurality of limiting members are protruding on the periphery of the support surface. The plurality of limiting members are hinged to the support surface. The limiting members are flipped downward relative to the support surface, so that the limiting members are lower than the support surface or flush with the support surface.

[0015] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects:

[0016] In the assembly device design of this utility model, the main frame and telescopic frame facilitate the placement of assembly components by workers. The storage cavity of the main frame can accommodate various materials, solving the problems of cumbersome handling and disorganized storage of LED conference screen test fixtures, thus preventing a decrease in production efficiency. The telescopic frame, in conjunction with the telescopic cavity, allows workers to extend the telescopic frame outwards, away from the main frame, to form an extended support surface. This ensures that longer display screen components can be stably placed on the flush top surfaces of the two frames, facilitating edge-wrapping operations. Of course, during non-working or operating phases, the telescopic frame can be retracted closer to the main frame by moving the telescopic coupling, thereby saving space. Attached Figure Description

[0017] Figure 1 This is a perspective view of an assembly device according to an embodiment of the present invention, wherein the assembly device is in a retracted state.

[0018] Figure 2 yes Figure 1 The front view of the assembly device.

[0019] Figure 3 This is a front view of the assembly device in an extended state according to an embodiment of the present invention.

[0020] Figure 4 yes Figure 1 Side view of the assembly device.

[0021] Figure 5 yes Figure 3 A top view of the assembly unit.

[0022] Figure 6 yes Figure 1 A top view of the assembly unit.

[0023] The annotations in the attached figures are explained as follows:

[0024] 100. Assembly equipment;

[0025] 1. Main frame; 11. Mounting plate; 12. Storage cavity; 13. Telescopic cavity; 14. Storage box; 141. Partition; 15. First platform; 16. First slider;

[0026] 2. Telescopic frame; 21. Second platform; 22. Second slider;

[0027] 3. Auxiliary telescopic frame; 31. Fourth platform;

[0028] 4. Telescopic mating parts; 41. First linear guide rail; 42. First guide rail limiting plate;

[0029] 5. Auxiliary telescopic fitting; 51. Second linear guide rail; 52. Second guide rail limiting plate;

[0030] 61. First locking element; 611. Side retaining shaft; 612. Rotating handle; 62. Second locking element;

[0031] 7. Test function platform; 71. Support rod; 73. Third platform;

[0032] 81. Limiting component; 82. Hook;

[0033] 9. Rollers. Detailed Implementation

[0034] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0035] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0036] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0037] In the embodiments of this utility model, the frame structure of the assembly device is designed with aluminum alloy material to ensure the lightness and strength of the overall structure, and provides a retractable multifunctional LED display assembly device with main support, movement, connection and retraction functions.

[0038] Please refer to Figures 1 to 2 The assembly device 100 is designed as an assembly vehicle, mainly including a main frame 1, a telescopic frame 2, an auxiliary telescopic frame 3, a telescopic coupling component 4, and an auxiliary telescopic coupling component 5. The main frame 1 and the telescopic frame 2 are connected by the telescopic coupling component 4, and the telescopic frame 2 and the auxiliary telescopic frame 3 are connected by the auxiliary telescopic coupling component 5.

[0039] The main frame 1 is the foundation of the entire frame structure of the assembly device 100. In this embodiment, the main frame 1 is a rectangular hollow frame, approximately 1m in length, 0.8m in height, and 0.6m in width. A horizontally placed mounting plate 11 is installed inside the main frame 1. This mounting plate 11 divides the internal space of the main frame 1 along its height into adjacent storage cavities 12 and telescopic cavities 13. The storage cavities 12 are used to store necessary accessories or tools, aiming to solve the problems of inconvenient handling and disorganized storage of display screen testing fixtures, thereby improving production efficiency. The telescopic cavities 13 extend along the length of the main frame 1, providing space for the telescopic movement of the telescopic frame 2 and the auxiliary telescopic frame 3.

[0040] like Figure 1 As shown, the storage cavity 12 is located above the telescopic cavity 13, facilitating easy access for staff to retrieve items. Furthermore, the storage cavity 12 occupies a larger volume than the telescopic cavity 13. To this end, the assembly device 100 is also equipped with a corresponding storage box 14 located within the storage cavity 12. This storage box 14 has an open structure and is specifically designed for storing cables and other components of the LED conference display screen. The storage box 14 is manufactured using sheet metal molding and is fixedly connected to the mounting plate 11. The storage box 14 has a length of approximately 0.3m to 1m and a width of approximately 0.2m to 0.5m. The storage box 14 has multiple partitions 141 inside, which divide the space into multiple independent storage compartments. In some other embodiments, to accommodate items of different sizes, the partitions 141 of the storage box 14 can be adjustable, allowing for free adjustment of the spatial layout according to actual needs.

[0041] The telescopic frame 2 is smaller in volume than the main frame 1, and its main function is to provide a retractable or extendable surface for placing objects. In this embodiment, the telescopic frame 2 is telescopically mounted on one side of the main frame 1 along its length via a telescopic coupling 4. Specifically, one end of the telescopic coupling 4 can be telescopically mounted within the telescopic cavity 13, while the other end is connected to the telescopic frame 2. The top surface of the telescopic frame 2 is flush with the top surface of the main frame 1, thus forming a flat support surface for placing the LED display screen.

[0042] like Figure 3 As shown, when the telescopic fitting 4 extends outward toward the telescopic cavity 13, the telescopic frame 2 moves away from the main frame 1, thus achieving the extension function, facilitating the assembly and debugging of the lower edge of the display screen, which can be several meters long. Conversely, as Figure 2 As shown, when the telescopic fitting 4 retracts towards the inside of the telescopic cavity 13, the telescopic frame 2 moves closer to the main frame 1 to achieve the retraction function, which facilitates the turnover and transportation of the entire assembly device 100.

[0043] To further expand the range of adjustable length, a similar connection method as described above is adopted. One end of the auxiliary telescopic fitting 5 is telescopically mounted on the telescopic frame 2, and the other end is connected to the auxiliary telescopic frame 3. The top surface of the auxiliary telescopic frame 3 is flush with the top surfaces of the telescopic frame 2 and the main frame 1, forming a larger support surface. Thus, the auxiliary telescopic frame 3, through the auxiliary telescopic fitting 5, is configured to be telescopically installed on the side of the telescopic frame 2 away from the main frame 1, thereby realizing a two-stage telescopic function.

[0044] During operation, the auxiliary telescopic fitting 5 can move in the direction towards the inside of the telescopic cavity 13, approach and retract into the telescopic frame 2, and then move together with the telescopic frame 2 towards the main frame 1. At this time, the auxiliary telescopic fitting 5 partially extends into the interior of the same telescopic cavity 13, thereby realizing the overall retraction function of the assembly device 100. Alternatively, the auxiliary telescopic fitting 5 can move in the direction towards the outside of the telescopic cavity 13, move away from the telescopic frame 2 and separate from it, and then move together with the telescopic frame 2 in the opposite direction and exit the interior of the telescopic cavity 13, thereby realizing the overall extension function.

[0045] In this embodiment, the length of the telescopic coupling 4 is approximately 1m to 2m, making the adjustable length range between the main frame 1 and the telescopic frame 2 1m to 1.8m. Similar to the structure of the telescopic coupling 4, the length of the auxiliary telescopic coupling 5 is approximately 1m to 2m, making the adjustable length range between the telescopic frame 2 and the auxiliary telescopic frame 3 1m to 1.8m. Therefore, for the assembly device 100 as a whole, during LED display assembly, the freely adjustable length range that can be achieved according to the dimensions of the components assembling the LED display is approximately 0.8m to 4.6m, which is sufficient to meet the requirements of the bezel size of large LED displays in the prior art.

[0046] It should be noted that the assembly device 100 does not necessarily need to include the auxiliary telescopic frame 3 and the auxiliary telescopic fitting 5. In some other embodiments, the assembly device 100 only needs to be equipped with one telescopic frame 2 to meet the size requirements of small and medium-sized LED displays; at the same time, there are also embodiments in which the assembly device 100 is equipped with multiple auxiliary telescopic frames 3.

[0047] Please refer to Figure 4 A first linear guide rail 41 and a first slider 16, capable of linear sliding engagement, are provided between the telescopic coupling component 4 and the telescopic cavity 13 of the main frame 1. The auxiliary telescopic coupling component 5 is slidably mounted on the telescopic frame 2 via a second linear guide rail 51 and a second slider 22, using a similar connection method. Figure 4As shown, when the assembly device 100 is in the retracted state, the first linear guide rail 41 and the second linear guide rail 51 are arranged vertically at intervals within the telescopic cavity 13, without interfering with each other. Specifically, the first linear guide rail 41 is located at the bottom of the main frame 1, ensuring the load-bearing capacity and stability of the telescopic frame 2, while the auxiliary telescopic component is mounted on the auxiliary telescopic frame 3 and located above the telescopic component 4. This layout increases the flexibility of the telescopic structure, enabling the entire telescopic mechanism to operate more stably and efficiently.

[0048] This embodiment uses a slider fixing method, which simplifies the telescopic fit structure. The first slider 16 is located at the bottom of the telescopic cavity 13 of the main frame 1 and is fixedly installed on the side of the telescopic cavity 13 near the telescopic frame 2 by a fixing plate. The telescopic fit component 4 includes, but is not limited to, the first linear guide rail 41. The first linear guide rail 41 has a protrusion that matches the groove of the first slider 16. One end of the first linear guide rail 41 is connected to the telescopic frame 2, extends along the length direction of the main frame 1 and is suspended, while the other end slides and is embedded in the first slider 16, so that the first linear guide rail 41 can slide relative to the first slider 16, realizing the smooth and precise movement of the telescopic fit component 4 relative to the telescopic cavity 13.

[0049] The second slider 22 is fixedly mounted on the telescopic frame 2, and the horizontal height of the second slider 22 is greater than the horizontal height of the first slider 16. The auxiliary telescopic fitting 5 includes, but is not limited to, a second linear guide rail 51 that protrudes from and extends horizontally from the auxiliary telescopic frame 3. The end of the second linear guide rail 51 away from the auxiliary telescopic frame 3 is slidably embedded in the second slider 22. The second linear guide rail 51 is higher than the first linear guide rail 41. The second linear guide rail 51 enables the auxiliary telescopic frame 3 to telescopically move relative to the telescopic frame 2, and can move closer to or further away from the main frame 1 as the telescopic frame 2 moves, thereby partially extending into or out of the telescopic cavity 13 of the main frame 1.

[0050] In this embodiment, the engagement between the slider and the linear guide rail can be manual, meaning the operator can directly push the guide rail by hand to achieve telescopic movement, suitable for applications where high precision and speed are not required. In some other embodiments, the engagement between the slider and the linear guide rail can also employ a motor-driven method suitable for automated equipment.

[0051] like Figure 4As shown, there are two first linear guide rails 41, and a first guide rail limiting plate 42 is connected between the ends of the two first linear guide rails 41 away from the telescopic frame 2. The first guide rail limiting plate 42 is located on the inner side of the first slider 16 facing the telescopic cavity 13. Its function is to abut against the first slider 16 during the process of the first linear guide rail 41 moving outward and exiting the telescopic cavity 13, thereby effectively preventing the first linear guide rail 41 from detaching from the first slider 16. Similarly, there are two second linear guide rails 51, and a second guide rail limiting plate 52 is provided between the ends of the two second linear guide rails 51.

[0052] The assembly device 100 also includes a first locking member 61 and a second locking member 62. For example... Figure 3 As shown, the first locking member 61 is disposed on the main frame 1 and located outside the telescopic cavity 13. The first locking member 61 can lock or unlock the telescopic movement of the first linear guide rail 41 relative to the main frame 1. The second locking member 62 is disposed on the outside of the telescopic frame 2 and is used to lock or unlock the telescopic movement of the second linear guide rail 51 relative to the telescopic frame 2.

[0053] like Figure 4 As shown, the first locking member 61 includes a retaining edge pivot 611 and a rotating handle 612 hinged to the retaining edge pivot 611. The retaining edge pivot 611 extends perpendicularly to the first linear guide rail 41. When the rotating handle 612 is rotated downwards, the retaining edge pivot 611 can extend and abut against the side wall of the first linear guide rail 41, preventing the sliding of the first linear guide rail 41. The structure and function of the second locking member 62 are similar to or the same as those of the first locking member 61.

[0054] Please refer to Figures 5 to 6 The main frame 1 has a first platform 15 on its top, the telescopic frame 2 has a second platform 21 on its top, and the auxiliary telescopic frame 3 has a fourth platform 31 on its top. The first platform 15, the second platform 21, and the fourth platform 31 are flush with each other. That is, the upper surface of the first platform 15 is the top surface of the main frame 1, the upper surface of the second platform 21 is the top surface of the telescopic frame 2, and the upper surface of the fourth platform 31 is the top surface of the auxiliary telescopic frame 3.

[0055] like Figure 6 As shown, when the assembly device 100 is in a retracted state, the first plate 15, the second plate 21, and the fourth plate 31 are sequentially and closely adjacent to each other. In this embodiment, the length of the first plate 15 is approximately 0.5m to 1m, and the width is approximately 0.2m to 0.6m. The length of the second plate 21 is approximately 0.4m to 0.8m, and the width is approximately 0.2m to 0.6m. The length of the fourth plate 31 is approximately 0.4m to 0.8m, and the width is approximately 0.2m to 0.6m.

[0056] Combination Figure 6 and Figure 3As shown, the assembly device 100 also includes a testing platform 7. The testing platform 7 is located on the side of the main frame 1 away from the telescopic frame 2, and can rotate and retract vertically, simplifying the testing and debugging of the LED display screen. Specifically, the testing platform 7 includes a support rod 71 and a third platform 73. The support rod 71 is vertically telescopically mounted on the main frame 1, and the third platform 73 is hinged to the top of the support rod 71 and rotates around the support rod 71. The third platform 73 is higher than the first platform 15, the second platform 21, and the fourth platform 31. In this embodiment, the length of the third platform 73 is approximately 0.6m, and the width is approximately 0.4m.

[0057] like Figure 1 As shown, the assembly device 100 also includes multiple limiting members 81. These limiting members 81 are columnar and protrude from the periphery of the support surface formed by the first platform 15, the second platform 21, and the fourth platform 31, thereby preventing the LED components placed on the support surface from falling. The limiting members 81 are hinged to each of the aforementioned platforms. The limiting members 81 are flipped downwards relative to the support surface, so that they are lower than or flush with the support surface, allowing larger LED display components to be placed flat on the entire support surface.

[0058] In addition, the assembly device 100 also includes a plurality of hooks 82. The plurality of hooks 82 are respectively disposed on the side walls of the main frame 1, the telescopic frame 2 and the auxiliary telescopic frame 3, and are respectively disposed below the limiting member 81.

[0059] Rollers 9 are provided at the bottom of the main frame 1, the bottom of the telescopic frame 2, and the bottom of the auxiliary telescopic frame 3. The rollers 9 facilitate the movement of the assembly device 100 as a whole, making it a mobile assembly cart. On-site installation personnel can easily and flexibly move the assembly cart, avoiding heavy handling labor, solving the problems of waiting time and resource waste during the LED conference screen assembly process, and improving production efficiency.

[0060] In summary, the assembly device 100 of this utility model, through the use of aluminum alloy material, the design of the main frame 1 and the telescopic frame 2, and the application of the telescopic fitting 4, allows for the free adjustment of the telescopic length of the frame according to the size of the accessories of the LED display screen during assembly, thereby achieving rapid assembly and debugging of the LED display screen.

[0061] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. An assembly apparatus for a display screen, characterized in that, The assembly device includes: The main frame is provided with a storage cavity and a telescopic cavity, the telescopic cavity extending along the length of the main frame; A telescopic frame, extendable and retractable to one side of the main frame along its length, the top surface of the telescopic frame being flush with the top surface of the main frame to form a support surface for placing the display screen; and A telescopic coupling component, one end of which is telescopically disposed in the telescopic cavity, and the other end of which is connected to the telescopic frame. The telescopic coupling component extends outward toward the telescopic cavity, causing the telescopic frame to move away from the main frame. The telescopic coupling component retracts inward toward the telescopic cavity, causing the telescopic frame to move closer to the main frame.

2. The display screen assembly apparatus according to claim 1, characterized in that, The storage cavity and the telescopic cavity are spaced apart along the height direction of the main frame.

3. The display screen assembly apparatus according to claim 1, characterized in that, A linear guide rail and a slider are provided between the telescopic fitting and the telescopic cavity, and the slider slides in conjunction with the linear guide rail.

4. The display screen assembly apparatus according to claim 3, characterized in that, The slider is fixedly disposed in the telescopic cavity. The telescopic mating component includes the linear guide rail, which protrudes from the telescopic frame and extends along the length direction of the main frame. The linear guide rail is slidably embedded in the slider.

5. The display screen assembly apparatus according to claim 1, characterized in that, The assembly device further includes a locking member, wherein the locking member is disposed on the main frame and located outside the telescopic cavity, and the locking member is capable of locking or unlocking the telescopic movement of the telescopic mating member relative to the main frame.

6. The display screen assembly apparatus according to claim 1, characterized in that, The assembly device further includes an auxiliary telescopic frame and an auxiliary telescopic coupling component; wherein, the auxiliary telescopic frame is telescopically disposed on the side of the telescopic frame away from the main frame, the top surface of the auxiliary telescopic frame is flush with the top surface of the telescopic frame, one end of the auxiliary telescopic coupling component is telescopically disposed on the telescopic frame, and the other end is connected to the auxiliary telescopic frame, the auxiliary telescopic coupling component can approach or move away from the telescopic frame, and as the telescopic frame moves, it partially extends into or exits the same telescopic cavity.

7. The display screen assembly apparatus according to claim 6, characterized in that, Within the internal space of the telescopic cavity, the auxiliary telescopic fitting and the telescopic fitting are spaced apart along the height direction of the main frame.

8. The display screen assembly apparatus according to claim 1, characterized in that, The assembly device also includes a storage box located in the storage cavity, the storage box having multiple partitions inside, the partitions dividing the space into multiple independent storage compartments; or... The bottom of the main frame is equipped with rollers, and the bottom of the telescopic frame is also equipped with rollers.

9. The display screen assembly apparatus according to claim 1, characterized in that, The assembly device further includes a first plate disposed on the top of the main frame and a second plate disposed on the top of the telescopic frame, the first plate and the second plate being flush with each other; The assembly device further includes a testing platform, which is located on the side of the main frame away from the telescopic frame. The testing platform includes a support rod and a third platform plate. The support rod is located on the main frame, and the third platform plate is hinged to the top of the support rod. In the height direction of the main frame, the third platform plate is higher than the first platform plate and the second platform plate.

10. The display assembly apparatus according to claim 1, characterized in that, Multiple limiting members are protruding on the periphery of the support surface. The multiple limiting members are hinged to the support surface. The limiting members are flipped downward relative to the support surface, so that the limiting members are lower than the support surface or flush with the support surface.

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