Lifting teacher's desk for multimedia classroom

Abstract

According to the lifting teacher's desk of the multimedia classroom, the first back plate is detachably connected with the frame, so that a wiring area of electronic equipment in the containing cavity is exposed and shielded, internal wires in the containing cavity can be protected, circuit winding is effectively prevented, follow-up repair and maintenance can be facilitated, and the working efficiency is improved. In addition, mistaken touch of the user can be prevented, and safety protection of the user is achieved; meanwhile, the second back plate covers the periphery of the first back plate and can move up and down relative to the first back plate, the second back plate has a first position where the second back plate moves and ascends to expose the top end of the first back plate, and the first back plate is completely exposed in the position state, so that subsequent maintenance, overhaul, management and other operations of workers are facilitated; the lifting teacher's desk is provided with a first position covering the first back plate and a second position covering the first back plate, so that the lifting teacher's desk of the multimedia classroom looks neater and more attractive, meanwhile, a user is further prevented from touching electronic equipment and internal wires in the containing cavity by mistake, and the use safety of the product is improved.

Description

Technical Field

[0001] The utility model relates to a podium technology, in particular to a lifting podium for a multimedia classroom. Background Art

[0002] The podium is an important tool for classroom teaching. With the application of multimedia technology, the podium has also developed into a multifunctional one. Currently, there are multimedia classroom lifting tables on the market with a tabletop that can be raised and lowered, such as the one shown in Chinese utility model patent CN219920540U, which is a stretchable multimedia classroom lifting table. It includes a podium base, a top plate, and a display. The podium base is internally provided with a lifting device, which includes two fixed plates, one side of each fixed plate is fixedly connected to the podium base, and the interior of each fixed plate is provided with a slide groove. The interior of each slide groove is fixedly connected to two fixed rods, and the circular arc surface of each fixed rod is fixedly connected to a rotating ring. One end of the rotating ring is fixedly connected to a first gear, and the end of the rotating ring away from the first gear is fixedly connected to a second gear. This solves the problem that traditional multimedia classroom lifting tables are generally fixed in height, but the height of the lecturers is not uniform and does not match the height of the multimedia classroom lifting tables, making it inconvenient to operate multimedia equipment.

[0003] However, there are some problems with the above patent: the lifting desk does not have a special cable fixing device, which leads to messy lines. Long-term entanglement of wire harnesses may cause the lines to wear and age or interfere with each other and cause short circuits. The cables are pulled and worn when the podium is raised and lowered, which is prone to malfunctions. In addition, there is not enough capacity to store multimedia equipment, and its cavity is fully enclosed and the operating status of the equipment cannot be inspected. At present, in order to modify the above problems, the multifunctional lifting desks on the market have further designed tank chains, wire tubes and other methods to bind cables, but their capacity is limited, which limits the number and volume of cables stored, and it is difficult to replace cables, which is not conducive to fault handling and equipment maintenance. In addition, in order to open the interior of the cavity, the lifting desks on the market are generally designed with an openable back panel, but in order to take aesthetics into consideration, the cavity needs to be adjusted to a certain height before it can be partially opened. This will result in the inability to open for maintenance when the lifting function fails, which also causes inconvenience to equipment maintenance. Therefore, there is a need to further improve the existing multifunctional lifting desks. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a multimedia classroom lifting desk, which solves the problem that the internal wiring harness of the existing multimedia classroom lifting desk has no special cable fixing device and the maintenance is inconvenient when the desk fails.

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

[0006] A multimedia classroom lifting desk comprises a support assembly, a table top and a moving assembly, wherein the table top is located above the support assembly and can be moved up and down relative to the support assembly by the moving assembly;

[0007] The support assembly includes a frame, a base and a first back plate, wherein the frame, the base and the first back plate surround and form a receiving cavity for placing the electronic device;

[0008] The first back plate is detachably connected to the frame to expose the electronic equipment and its wiring area in the accommodating cavity;

[0009] A second back plate is provided on the periphery of the table top;

[0010] The second back plate covers the outer periphery of the first back plate and is capable of moving up and down relative to the first back plate;

[0011] The second back plate has a first position where it moves upward to expose the top of the first back plate, and a second position where it covers the first back plate.

[0012] Furthermore, a buckle is provided on each of two sides of the top of the first back plate, a through hole is provided on the first back plate at a position corresponding to the buckle, the buckle portion is exposed from the through hole and a buckle groove is provided on the exposed portion, and a slot is provided at a position corresponding to the frame and the buckle;

[0013] The buckle can be engaged with or separated from the slot, so that the first back plate is engaged with or separated from the frame.

[0014] Furthermore, the second back plate is detachably connected to the periphery of the table top; or

[0015] Also includes side panels fixedly connected to the support assembly, the side panels are located below the table top and on both sides of the second back panel, the second back panel is detachably connected to the periphery of the table top and is separated from the side panels; or

[0016] Also includes side panels fixedly connected to the periphery of the table top, two side panels are respectively located on both sides of the second back panel, the second back panel is detachably connected to the periphery of the table top and is separated from the side panels; or

[0017] It also includes side panels fixedly connected to the periphery of the table top, and the two side panels are respectively located on both sides of the second back panel, and the two sides of the second back panel are respectively detachably connected to the corresponding side panels.

[0018] Furthermore, when the second back panel is detachably connected to the table top, self-tapping screws are provided on both sides of the second back panel, and the self-tapping screws can be engaged with or separated from screw holes provided on the table top to fix or separate the second back panel from the table top; or

[0019] When the second back panel is detachably connected to the side panel, self-tapping screws are provided on both sides of the second back panel. The self-tapping screws can be matched with or separated from the screw holes provided on the side panel to fix or separate the second back panel from the side panel.

[0020] Furthermore, a first supporting beam is provided below the first back plate, and the bottom of the first back plate is movably connected to the first supporting beam; and / or

[0021] A second supporting beam is provided below the second back plate, and the bottom of the second back plate is movably connected to the second supporting beam.

[0022] Furthermore, the bottom end of the table top and the top end of the support assembly are connected via a folding cover, and the folding cover is provided on a side of the support assembly that is not covered by the second back plate and the side plates on both sides.

[0023] Furthermore, the support assembly further includes a plate and a support plate, the frame and the plate are constructed into a cabinet structure with a hollow back, and heat dissipation holes are evenly distributed on the surface of the plate located on the side of the cabinet structure;

[0024] There are two cabinet structures, each of which is provided with a front cabinet door, and a glass observation window is embedded in the front cabinet door;

[0025] A plurality of the support plates are connected between the two cabinet structures.

[0026] Furthermore, the moving component includes a retractable bracket and a motor, the upper end of the retractable bracket is connected to the table top, the lower end of the retractable bracket is connected to the base, the motor is connected to the retractable bracket, and the motor controls the retractable bracket to retract.

[0027] Furthermore, transport grooves are provided on the outer surfaces of both sides of the base.

[0028] Furthermore, at least one storage platform is provided on the upper surface of the table top, and the storage platform and the table top are detachably mounted in a snap-fit ​​manner.

[0029] In summary, compared with the prior art, the present invention has at least the following beneficial effects:

[0030] The present invention provides a multimedia classroom lifting desk, which realizes the exposure and shielding of the wiring area of ​​the electronic equipment in the accommodating cavity through the detachable connection between the first back panel and the frame, which can not only protect the internal wires inside the accommodating cavity and effectively prevent the wires from being entangled, but also facilitate subsequent repair and maintenance, and further prevent users from accidentally touching it, thereby achieving user safety protection; at the same time, the second back panel covers the outer periphery of the first back panel and can move up and down relative to the first back panel, and the second back panel has a first position that moves and rises to expose the top of the first back panel. In this position, the first back panel is completely exposed, which is convenient for the staff to perform subsequent maintenance, inspection and management operations, and also has a second position that covers the first back panel, making the multimedia classroom lifting desk look neater and more beautiful, and further preventing users from accidentally touching the electronic equipment and internal wires inside the accommodating cavity, thereby improving the safety of product use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 This is a structural diagram of a liftable lectern in a multimedia classroom according to an embodiment of the present invention.

[0033] Figure 2 This is a cross-sectional schematic diagram of a liftable desk in a multimedia classroom according to an embodiment of the present invention.

[0034] Figure 3 This is a structural schematic diagram of the second back plate in the first position of an embodiment of the utility model.

[0035] Figure 4 This is a structural schematic diagram of the second back plate in the second position of an embodiment of the utility model.

[0036] Figure 5 This is an exploded diagram of an embodiment of the present invention.

[0037] Figure 6 This is a structural schematic diagram of the multimedia classroom lifting desk from another angle according to an embodiment of the utility model.

[0038] Figure 7 This is a schematic structural diagram of an independent open position in an embodiment of the present utility model.

[0039] Figure 8 This is a structural diagram of a mobile component according to an embodiment of the present utility model.

[0040] Figure 9 This is a structural diagram of a multimedia component according to an embodiment of the present invention.

[0041] Figure 10 This is a schematic structural diagram of the keyboard and mouse cable holes according to an embodiment of the present invention.

[0042] Figure 11 This is a structural diagram of a storage table according to an embodiment of the present utility model.

[0043] Description of reference numerals:

[0044] 1. Support assembly; 11. Frame; 12. Base; 121. Carrying groove; 13. First back panel; 131. Buckle; 1311. Buckle groove; 132. Locking mechanism; 133. Through hole; 134. First supporting beam; 14. Accommodating cavity; 15. Plate; 16. Support plate; 17. Cabinet structure; 171. Heat dissipation hole; 172. Front cabinet door; 173. Glass observation window; 174. Independent open space; 18. Cable management hole

[0045] 2. Countertop;

[0046] 3. Mobile assembly; 31. Retractable bracket; 311. Casing; 312. Lifting rod; 32. Motor; 33. Controller;

[0047] 4. Second back panel; 41. Side panel; 42. Hook; 43. Self-tapping screw; 45. Second supporting beam;

[0048] 5. Folding cover;

[0049] 6. Multimedia components; 61. Display; 62. Keyboard; 63. Rotatable bracket; 64. Sliding assembly; 641. Linear slider; 642. Linear guide rail; 643. Base bracket; 65. Keyboard and mouse cable holes;

[0050] 7. Storage table;

[0051] 8. Socket;

[0052] 9. Cup holder. DETAILED DESCRIPTION

[0053] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0054] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0055] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0056] As attached Figure 1 As shown, the embodiment of the present invention discloses a multimedia classroom lifting desk, comprising a support assembly 1, a table 2 and a moving assembly 3. The table 2 is located above the support assembly 1 and can be moved up and down relative to the support assembly 1 through the moving assembly 3. Figure 2 The support assembly 1 shown includes a frame, a base 12 and a first back plate 13. The frame constitutes the internal support of the support assembly 1. The frame, the base 12 and the first back plate 13 surround and form a storage cavity 14 for placing electronic equipment. The internal wires connected to the electronic equipment can be arranged and placed in the storage cavity 14. Placing the internal wires in a separate storage space can improve the neatness of the internal wires, avoid long-term entanglement of the wire harnesses, and cause the lines to wear and age or interfere with each other to cause short circuits. The first back plate 13 is detachably connected to the frame to achieve the exposure and shielding of the electronic equipment and its wiring area in the storage cavity 14. When the first back plate 13 is removed, maintenance personnel can directly perform maintenance, inspection and management operations on the internal wires inside the leaked storage cavity 14, avoiding the need to move the electronic equipment out before maintenance, which is easy to cause the internal wires to be pulled and damaged; when the first back plate 13 is connected to the frame, the internal wires inside the storage cavity 14 can be protected, and at the same time, prevent users from accidentally touching them, thereby achieving safety protection for users. Further, as shown in the attached Figure 3As shown, the periphery of the table top 2 is provided with a second back plate 4; the second back plate 4 covers the periphery of the first back plate 13 and can move up and down relative to the first back plate 13; the second back plate 4 has a first position in which the top of the first back plate 13 is exposed. At this time, the second back plate 4 moves upward to the maximum movable distance relative to the support assembly 1 through the moving assembly 3. In this position, the first back plate 13 is completely exposed, which is convenient for the staff to perform subsequent maintenance, inspection and management operations; as shown in the attached Figure 4 As shown, it also has a second position covering the first back panel 13. At this time, the second back panel 4 can cover the first back panel 13, making the multimedia classroom lifting desk look neater and more beautiful, while further preventing users from accidentally touching the electronic equipment and internal wires inside the accommodating cavity 14, thereby improving the safety of product use.

[0057] In certain embodiments of the present invention, as shown in the attached Figure 3 As shown, a buckle 131 is provided on each side of the top of the first back panel 13, and a through hole 133 is provided on the first back panel 13 at a position corresponding to the buckle 131. The buckle 131 is partially exposed from the through hole 133 and a buckle groove 1311 is provided on the exposed portion. A slot is provided at the corresponding position of the frame and the buckle 131; the buckle 131 can be connected or separated with the slot, so that the first back panel 13 is connected or separated with the frame.

[0058] Specifically, when the buckle 131 and the slot need to be engaged, the first back panel 13 is first aligned with the frame and the buckle 131 is aligned with the slot on the frame. A force is applied to the first back panel 13 in the direction of the accommodating cavity 14, and the edge of the slot contacts the buckle 131 and applies pressure to it. The buckle 131 will deform to a certain extent under the action of pressure. When the buckle 131 fully enters the slot position, the buckle 131 returns to its original shape, and the engagement between the buckle 131 and the slot is achieved, which automatically fastens the first back panel 13, thereby achieving the engagement between the first back panel 13 and the frame. At this time, the first back panel 13, the frame, and the base 12 together surround and form the accommodating cavity 14 for placing the electronic device, providing a stable placement environment for the electronic device and its internal wires, and ensuring the stability of the connection between the first back panel 13 and the frame in the connected state, thereby preventing the first back panel 13 from accidentally falling off during use. When the buckle 131 needs to be separated from the slot, the user simultaneously pulls the buckle slots 1311 of the buckle 131 on both sides with both hands to separate the buckle 131 from the slot, and then further pulls the buckle slots 1311 upward to separate the first back plate 13 from the frame. At this time, the electronic equipment and its wiring area in the accommodating cavity 14 are exposed, making it easier for staff to perform subsequent maintenance, inspection, and management operations. Preferably, the buckle 131 is a spring buckle.

[0059] Furthermore, in order to improve the stability of the connection between the first back plate 13 and the frame, as shown in the attached Figure 3As shown, the first back panel 13 is further provided with a locking mechanism 132, which is disposed at the top of the first back panel 13 and can be engaged or disengaged with the frame. The addition of the locking mechanism 132 further secures the first back panel 13, preventing it from loosening or detaching. Furthermore, the locking mechanism 132 is preferably only accessible to authorized personnel, further preventing unauthorized personnel from accidentally accessing the electronic equipment in the receiving chamber 14.

[0060] In certain embodiments of the present invention, in order to cope with the situation where the lifting function of the lifting desk fails, that is, the second back panel 4 is stuck before it is raised to the first position, so that the first back panel 13 cannot be fully exposed, resulting in difficulty in disassembly and the inability to open the interior of the lifting desk for maintenance, the second back panel 4 is designed to be detachable. When the above-mentioned failure occurs, the second back panel 4 and the first back panel 13 can be opened in sequence to maintain the lifting desk. Specifically, there are at least four ways to detachably install the second back panel 4: (1) The second back panel 4 is directly detachably connected to the outer periphery of the table top 2 and is driven up and down by the moving assembly 3 along with the table top 2; (2) The lifting desk also includes side panels 41 fixedly connected to the support assembly 1, and the side panels 41 are located below the table top 2 and on both sides of the second back panel 4. At this time, the side panels 41 can provide additional support for the lifting desk and enhance the overall stability of the lifting desk. The second back panel 4 is detachably connected to the periphery of the table top 2 and is separated from the side panels 41 and is independently arranged. The moving component 3 can drive the table top 2 and the second back panel 4 connected to the periphery of the table top 2 to move up and down relative to the first back panel 13, while the side panels 41 are fixed; (3) The lifting desk also includes side panels 41 fixedly connected to the periphery of the table top 2, and the two side panels 41 are respectively located on both sides of the second back panel 4. The second back panel 4 is detachably connected to the periphery of the table top 2 and is separated from the side panels 41. When the moving component 3 can drive the table top 2 to move up and down, the second back panel 4 and the side panels 41 can simultaneously follow the table top 2 to move up and down. The side panels 41 and the second back panel 4 can move together, making the appearance of the lifting desk more beautiful and coordinated, and the side panels 41 move together with the table top 2 to reduce the intrusion of dust or debris on the side when the table top 2 is raised to a certain extent; (4) As shown in the attached Figure 3As shown, the elevating desk also includes side panels 41 fixedly connected to the periphery of the table top 2. The two side panels 41 are located on either side of the second back panel 4. The two sides of the second back panel 4 are removably connected to the corresponding side panels 41 to facilitate assembly, fixation, or removal of the second back panel 4. Similarly, the integration of the side panels 41 and the second back panel 4 makes the elevating desk more aesthetically pleasing and harmonious. The side panels 41 move with the table top 2, which can, to a certain extent, reduce the intrusion of dust or debris from the sides when the table top 2 is raised. In addition, in this case, to prevent the first back panel 13 from being blocked by the side panels 41 after the second back panel 4 is removed, making it difficult to remove, the width of the second back panel 4 should be greater than the width of the first back panel 13. In principle, the present invention does not specifically limit the installation method of the second back panel 4 and the side panels 41. Those skilled in the art can select and adjust according to actual application conditions, product requirements, and quality requirements to meet the personalized needs of different users. Preferably, hooks 42 can be provided above the side panels 41 to facilitate the user to store or secure items.

[0061] In certain embodiments of the present invention, as shown in the attached Figure 3 As shown, when the second back panel 4 is detachably connected to the table top 2, a self-tapping screw 43 is provided on each side of the second back panel 4, and the self-tapping screw 43 can be engaged with or separated from the screw holes provided on the table top 2, so that the second back panel 4 is fixed to or separated from the table top 2; or, when the second back panel 4 is detachably connected to the side panel 41, a self-tapping screw 43 is provided on each side of the second back panel 4, and the self-tapping screw 43 can be engaged with or separated from the screw holes provided on the side panel 41, so that the second back panel 4 is fixed to or separated from the side panel 41. Specifically, when the second back panel 4 needs to be removed, the user can loosen the self-tapping screws 43 on both sides with both hands to separate the self-tapping screws 43 from the table top 2 or side panel 41. Then, the user can grab the exposed part of the self-tapping screws 43 and pull it upward at an angle to remove the second back panel 4. A baffle is provided on the inside of the second back panel 4 to prevent the self-tapping screws 43 from falling. When the second back panel 4 needs to be installed, the user aligns the self-tapping screws 43 with the screw holes on the table top 2 or side panel 41 and manually tightens the self-tapping screws 43. The removal and installation of the second back panel 4 can be completed quickly and easily by one person without tools, making the operation simple.

[0062] In certain embodiments of the present invention, as shown in the attached Figure 5As shown, a first supporting beam 134 is provided below the first back panel 13. The bottom of the first back panel 13 is movably engaged with the first supporting beam 134, which not only allows the first back panel 13 to be quickly positioned during installation, but also provides positional support and support for the first back panel 13 after installation. When installing the first back panel 13, the first back panel 13 is first slid obliquely downward onto the hook inside the first supporting beam 134, where it is then secured to the first supporting beam 134. Alternatively, a second supporting beam 45 is provided below the second back panel 4. The bottom of the second back panel 4 is movably engaged with the second supporting beam 45, which not only provides stable support for the second back panel 4 in the second position, but also guides the second back panel 4 to be quickly secured during installation. When installing the second back panel 4, the second back panel 4 is first slid obliquely downward onto the second supporting beam 45, whereupon the self-tapping screws 43 are aligned with the screw holes, allowing the user to quickly tighten the screws, thereby quickly installing the second back panel 4.

[0063] In certain embodiments of the present invention, as shown in the attached Figure 1 As shown, the bottom end of the table top 2 and the top end of the support assembly 1 are connected via a folding cover 5 , and the folding cover 5 is provided on a side of the support assembly 1 that is not covered by the second back plate 4 and the side plates 41 on both sides. Specifically, the folding cover 5 is arranged on the side close to the teacher, the lower part of the folding cover 5 is connected to the top of the support assembly 1 and remains stationary, and the upper part of the folding cover 5 can be extended and folded up and down relative to the support assembly 1 through the moving assembly 3. When the second backboard 4 is in the second position, that is, at this time the table top 2 has not moved relative to the support assembly 1 or has risen and then dropped to the original position, in this state the folding cover 5 is compressed and folded; when the second backboard 4 moves from the second position to the first position, the table top 2 moves upward relative to the support assembly 1 through the moving assembly 3 until it reaches the maximum movable distance. In this state, the upper part of the folding cover 5 follows the table top 2 to continuously move upward and stretch; when the second backboard 4 is in the first position, that is, at this time the table top 2 moves to the maximum distance relative to the support assembly 1, in this state the folding cover 5 is stretched to the maximum; when the second backboard 4 moves from the first position to the second position, the table top 2 moves downward relative to the support assembly 1 through the moving assembly 3 until it cannot be moved. In this state, the upper part of the folding cover 5 follows the table top 2 to continuously move downward and compress. The folding cover 5, together with the second back panel 4 and then the side panels 41, encloses the interior of the multimedia classroom lifting desk. It can be extended and retracted as the table top 2 moves up and down to block the interior of the lifting desk, forming a relatively closed space for the multimedia classroom lifting desk. This protects the internal structure of the multimedia classroom lifting desk and prevents dust and foreign objects from entering the interior of the multimedia classroom lifting desk during the lifting process. It also effectively improves safety by preventing the mobile component 3 from accidentally starting during the lifting process, causing the table top 2 to drop rapidly and pinch or crush cleaning staff and users. The folding cover 5 can be made of a variety of materials, with an accordion cover being preferred.

[0064] In certain embodiments of the present invention, the frame includes multiple transverse and longitudinal rods. Slots are formed on the inner sides of the longitudinal rods near the first back panel 13, and the lower portion of the frame connects to the base 12. The interwoven transverse and longitudinal rods form a single unit, ensuring the stability and reliability of the support assembly 1. The longitudinal rods connect the tabletop 2 and the base 12, ensuring the structural stability of the multimedia classroom lift desk.

[0065] In certain embodiments of the present invention, as shown in the attached Figure 6 As shown, the support assembly 1 also includes a plate 15 and a support plate 16. The frame and the plate 15 are constructed into a cabinet structure 17 with a hollow back. There are two cabinet structures 17. One cabinet structure 17 can be a hollow back structure and the other can be a closed structure. Of course, in other specific usage scenarios, the cabinet structures 17 can all be hollow structures to store more electronic equipment, or the cabinet structures 17 can all be closed structures to store teaching supplies, etc. The surface of the plate 15 located on the side of the cabinet structure 17 is evenly distributed with heat dissipation holes 171. The heat dissipation holes 171 can effectively help the electronic equipment dissipate heat and ensure the normal operation of the electronic equipment. As shown in the attached figure Figure 1 As shown, the cabinet structure 17 is provided with a front cabinet door 172, and the front cabinet door 172 has a glass observation window 173 embedded therein. When the cabinet structure 17 is fully enclosed, the status of the electronic equipment can be inspected, which facilitates internal fault diagnosis and processing. In addition, a number of support plates 16 are connected between the two cabinet structures 17. The support plates 16 can not only effectively enhance the stability of the support assembly 1, but also increase the space for storing items. The partition formed between the two cabinet structures 17 can classify and place items or electronic equipment. The support plates 16 can be directly fixed to the cabinet structure 17 or fixed through the heat dissipation holes 171. There is no limitation here. When fixed through the heat dissipation holes 171, the support plates 16 can be flexibly adjusted to increase the versatility of the storage space.

[0066] In certain embodiments of the present invention, as shown in the attached Figure 7 As shown, an independent circuit breaker position 174 is designed on the inner side of the cabinet structure 17, and a single circuit breaker can be installed as the main switch of the lifting desk, which can not only maintain the storage capacity but also improve the safety of electricity use and facilitate management.

[0067] In certain embodiments of the present invention, as shown in the attached Figure 8 As shown, the moving component 3 includes a retractable bracket 31 and a motor 32. The upper end of the retractable bracket 31 is connected to the table 2, the lower end of the retractable bracket 31 is connected to the base 12, and the motor 32 is connected to the retractable bracket 31. The motor 32 controls the retractable bracket 31 to extend and retract.

[0068] The folding cover 5 connected to the lower surface of the table 2 is extended and retracted when the lifting device 310 is in a state of being lifted and lowered.

[0069] In certain embodiments of the present invention, as shown in the attached Figure 1 As shown, the mobile component 3 also includes a controller 33, which is fixed to the lower surface of the table 2 and exposed on the outer surface of the folding cover 5. The controller 33 is connected to the motor 32 in communication to control the mobile component 3 to raise and lower the table 2. Among them, the position of the controller 33 is exposed on the outer surface of the folding cover 5 and is closer to the user, making it more convenient for the user to operate. The controller 33 controls the operation of the motor 32 through a communication connection. The user can press the control button on the controller 33 to achieve precise adjustment of the lifting of the retractable bracket 31 to achieve flexible control of the height of the lifting desk of the entire multimedia classroom. The controller 33 and the motor 32 can be connected by wiring or by wireless control. The user can adjust the height of the table 2 that suits him or her to meet the needs of users of different site heights and different heights. Preferably, the controller 33 has a memory function, which is a prior art. The user's preferred desktop height can be saved by the control button. Later, if you want to adjust a specific height, you only need to press the control button to automatically rise to the set appropriate height.

[0070] In certain embodiments of the present invention, as shown in the attached Figure 9 As shown, the multimedia classroom lifting desk also includes a multimedia component 6, which includes a display 61, a keyboard 62, a rotatable bracket 63 and a sliding component 64. The sliding component 64 includes a linear slider 641, a linear guide rail 642 and a base bracket 643. The display 61 is fixed to the base bracket 643 through the rotatable bracket 63, and the base bracket 643 is slidably connected to the linear guide rail 642 through the linear slider 641, so that the display 61, the rotatable bracket 63 and the base bracket 643 can slide back and forth as a whole along the linear guide rail 642.

[0071] Specifically, when the user applies external force to push the linear slider 641, the linear slider 641 slides smoothly along the linear guide rail 642. The linear guide rail 642 provides a guide for the linear slider 641. The sliding of the sliding assembly 64 can drive the display 61 to move to the position required by the user to meet different usage scenarios and needs. The function of the rotatable bracket 63 is to be able to drive the display 61 to rotate within a certain range. The user can adjust the orientation of the display 61 according to actual conditions, such as adjusting the up and down and pitch angles to meet the needs of different viewing angles, thereby obtaining a better visual effect. The rotation mode of the rotatable bracket 63 can be manual or electric. In addition, the linear guide rail 642 is connected to the table top 2, and there is a hollow inner cavity under the base bracket 643. The keyboard 62 is placed in the hollow inner cavity of the base bracket 643. The hollow inner cavity effectively improves the space utilization. When the user is not using the keyboard 62, the keyboard 62 can be stored in the hollow inner cavity to prevent it from being exposed to the outside and affecting the neatness and beauty of the table top 2. In addition, as shown in the attached Figure 10 As shown, the base bracket 643 has a keyboard and mouse cable hole 65 to ensure that the keyboard and mouse cables are not blocked or damaged when the display 61 moves with the sliding component 64.

[0072] In certain embodiments of the present invention, as shown in the attached Figure 6 As shown, multiple cable management holes 18 are distributed on the bottom, frame, and plate 15 of the table top 2. These holes can be used with Velcro cable management strips to secure internal cables, preventing damage when the moving assembly 3 is raised or lowered. Preferably, users can separate the internal cables by strong and weak current and secure them to the cable management holes 18 to prevent interference between strong and weak currents.

[0073] In certain embodiments of the present invention, as shown in the attached Figure 1 As shown, the outer surfaces of both sides of the base 12 are provided with carrying grooves 121. It is used to provide a force point for the carrier when carrying the multimedia classroom lifting desk, so that the carrier can insert fingers or tools into the carrying grooves 121 to lift the multimedia classroom lifting desk for movement.

[0074] In certain embodiments of the present invention, as shown in the attached Figure 11 As shown, the upper surface of the table is provided with at least one storage platform 7 for providing additional storage space for items such as USB flash drives. The storage platform 7 is detachably mounted to the table top 2 in a snap-on manner for easy replacement, allowing users to partially change the contents and layout of the table top 2 without replacing the entire table top 2.

[0075] In certain embodiments of the present invention, as shown in the attached Figure 1 As shown, the table 2 is also provided with a socket 8 and a cup holder 9. The cup holder 9 is fixedly connected to the side wall of the table 2 to prevent liquid from spilling and damaging the multimedia classroom lifting desk. The socket 8 can provide a power interface, making it convenient to use electrical devices on the table 2.

[0076] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A multimedia classroom lifting desk, comprising a support assembly, a tabletop, and a movable assembly, wherein the tabletop is located above the support assembly and can be moved up and down relative to the support assembly by the movable assembly; It is characterized by: The support assembly includes a frame, a base and a first back plate, wherein the frame, the base and the first back plate surround and form a receiving cavity for placing the electronic device; The first back plate is detachably connected to the frame to expose the electronic equipment and its wiring area in the accommodating cavity; A second back plate is provided on the periphery of the table top; The second back plate covers the outer periphery of the first back plate and is capable of moving up and down relative to the first back plate; The second back plate has a first position where it moves upward to expose the top of the first back plate, and a second position where it covers the first back plate.

2. The multimedia classroom lifting desk as claimed in claim 1, characterized in that: A buckle is provided on each of two sides of the top of the first back plate, a through hole is provided on the first back plate at a position corresponding to the buckle, the buckle portion is exposed from the through hole and a buckle groove is provided on the exposed portion, and a slot is provided at a position corresponding to the buckle on the frame; The buckle can be engaged with or separated from the slot, so that the first back plate is engaged with or separated from the frame.

3. The multimedia classroom lifting desk as claimed in claim 1, characterized in that: The second back plate is detachably connected to the periphery of the table top; or Also includes side panels fixedly connected to the support assembly, the side panels are located below the table top and on both sides of the second back panel, the second back panel is detachably connected to the periphery of the table top and is separated from the side panels; or Also includes side panels fixedly connected to the periphery of the table top, two side panels are respectively located on both sides of the second back panel, the second back panel is detachably connected to the periphery of the table top and is separated from the side panels; or It also includes side panels fixedly connected to the periphery of the table top, and the two side panels are respectively located on both sides of the second back panel, and the two sides of the second back panel are respectively detachably connected to the corresponding side panels.

4. The multimedia classroom lifting desk as claimed in claim 3, characterized in that: When the second back panel is detachably connected to the table top, self-tapping screws are provided on both sides of the second back panel, and the self-tapping screws can engage with or disengage from screw holes provided on the table top to fix or separate the second back panel from the table top; or When the second back panel is detachably connected to the side panel, self-tapping screws are provided on both sides of the second back panel. The self-tapping screws can be matched with or separated from the screw holes provided on the side panel to fix or separate the second back panel from the side panel.

5. The multimedia classroom lifting desk as claimed in claim 3, characterized in that: A first supporting beam is provided below the first back plate, and the bottom of the first back plate is movably connected to the first supporting beam; and / or A second supporting beam is provided below the second back plate, and the bottom of the second back plate is movably connected to the second supporting beam.

6. The multimedia classroom lifting desk as claimed in claim 3, characterized in that: The bottom end of the table top and the top end of the support assembly are connected via a folding cover, and the folding cover is arranged on a side of the support assembly that is not covered by the second back plate and the side plates on both sides.

7. The multimedia classroom lifting desk as claimed in claim 1, characterized in that: The support assembly further includes a plate and a support plate, the frame and the plate are constructed into a cabinet structure with a hollow back, and heat dissipation holes are evenly distributed on the surface of the plate located on the side of the cabinet structure; There are two cabinet structures, each of which is provided with a front cabinet door, and a glass observation window is embedded in the front cabinet door; A plurality of the support plates are connected between the two cabinet structures.

8. The multimedia classroom lifting desk as claimed in claim 1, characterized in that: The moving component includes a retractable bracket and a motor. The upper end of the retractable bracket is connected to the table top, the lower end of the retractable bracket is connected to the base, and the motor is connected to the retractable bracket. The motor controls and drives the retractable bracket to retract.

9. The multimedia classroom lifting desk as claimed in claim 1, characterized in that: Transport grooves are provided on the outer surfaces of both sides of the base.

10. The multimedia classroom lifting desk as claimed in claim 1, characterized in that: At least one storage platform is provided on the upper surface of the table top, and the storage platform and the table top are detachably mounted in a snap-fit ​​manner.

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