Portable platform
By designing a foldable portable lectern that integrates speakers and microphones, and incorporates a built-in rechargeable battery and touchscreen display, the design solves the problems of traditional lecterns being inconvenient for outdoor use and lacking multimedia functionality. It achieves the integration of portability and multimedia functions, and reduces the cost of use.
Patent Information
- Application Number
- CN202520283797.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-21
AI Technical Summary
The existing lectern has a large structure that is inconvenient for outdoor use, and it lacks multimedia functions, requiring external equipment to improve the sound effect, which results in high operating costs.
Design a portable lectern that includes a foldable cabinet, side panels, and a flip-up tabletop, with built-in speakers and microphone, a rechargeable battery, and a touchscreen display, simplifying the structure and integrating multimedia functions.
It achieves portability of the lectern and integration of multimedia functions, reduces the equipment requirements for outdoor use, lowers the cost of use, and improves the user experience and aesthetics.
Smart Images

Figure CN223900436U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the platform technical field, specifically, relates to a portable platform. BACKGROUND
[0002] From the traditional function, the platform is actually a desk for teaching or speaking, generally used for placing the speech, books and other articles, single structure, less function, limited use range.
[0003] The existing platform structure is generally fixed platform, the volume is relatively huge, and the application scene is mostly indoor place such as classroom, lecture hall, and it is difficult to apply to some outdoor places.Moreover, when using in outdoor scene, small size and convenient carrying are usually the primary consideration.
[0004] In addition, with the development of science and technology, intelligent function is increasingly popular, and multimedia platform has become the essential tool of modern daily teaching, and its function is developing towards humanization, convenience and entertainment, that is, adding diversified functions such as audio, video, sound effect optimization and promotion in the traditional platform.At present, when using in outdoor scene, due to various factors, when the sound effect needs to be enlarged or improved, additional auxiliary equipment such as microphone and sound equipment is needed, and the use cost is high. SUMMARY
[0005] In order to overcome at least one defect in the prior art, the utility model provides a portable platform, which is light in structure, can be folded and stored, convenient to carry and widely used.
[0006] The utility model provides a portable platform: including the cabinet and the side plate at both sides, the rear end of two side plates is respectively hinged with both sides of cabinet, and the lower end surface of two side plates is flush with the lower end surface of cabinet;The upper end of cabinet is provided with horizontal main table board, the left and right ends of main table board are respectively provided with the side table board that can overturn up and down, and when two side table boards overturn up to flush with main table board, the outer end of two side table boards is respectively detachably connected with the inner wall of two side plates.
[0007] Compared with the prior art, the portable platform of the utility model has the following advantages:
[0008] The utility model discloses an intelligent platform compared with the traditional bulkiness platform structure only includes a cabinet, and the both sides of cabinet are rotatably connected with side plate, and the upper end of cabinet is connected with horizontal main platform, and the both ends of main platform are rotatably connected with side platform, and when two side platforms are rotatable and open to be located in the same plane with main platform, form a complete platform panel structure, and when opening and using, the both ends of two side platforms away from main platform are respectively limited with two side plates through corresponding connecting piece, guarantee the stability of whole platform panel, when platform needs to be stored, first remove the connection of two side platforms and two side plates, open two side plates a little angle, then fold two side platforms down to vertical storage state, and then rotate two side plates inwards to be in close contact with two side platforms to realize the storage of platform, and the volume of platform is greatly reduced, convenient for packing and carrying, especially suitable for outdoor occasions.
[0009] As improvement, the lower end face of the side of two side platforms away from the main platform is respectively provided with a first connecting piece, the first connecting piece is provided with a positioning slot or a positioning plate, the inner wall of two side plates is respectively provided with a second connecting piece, and the two second connecting pieces are respectively provided with a positioning plate or a positioning slot.
[0010] Further improvement, the rear end of the cabinet is provided with a sound box, and a microphone electrically connected with the sound box is detachably connected to the cabinet, the side plate, the main platform or the side platform.
[0011] Further improvement, the cabinet is provided with a storage battery for supplying power to the sound box and the microphone, and a charging socket electrically connected with the storage battery is arranged on the side wall of the cabinet.
[0012] Further improvement, the top of the cabinet is provided with a controller, and the controller is electrically connected with the sound box, the controller is provided with a touch display screen, an audio adjustment interface and a switch, and the main platform is located in front of the controller.
[0013] Further, the cabinet body comprises a wooden cabinet body and a metal support, the metal support is detachably connected to the rear side plate of the wooden cabinet body, the upper end surface of the metal support is higher than the upper end surface of the wooden cabinet body, the two sides of the metal support are connected with vertically extending hinge assemblies, the two side plates are wooden plates, and the rear sides of the two side plates are respectively connected with the other sides of the corresponding hinge assemblies. In the above structure, the main structure is wooden structure, which ensures the quality and reduces the weight, and the metal support effectively increases the strength of the connecting structure between the side plate and the cabinet body.
[0014] Further improved, the wooden cabinet body is provided with a loudspeaker unit with a power amplifier module, and the rear side plate of the wooden cabinet body is provided with a relief hole for the loudspeaker unit to pass through, and the rear side of the metal support is connected with a mesh plate; the wooden cabinet body is also provided with a digital audio processor electrically connected with the loudspeaker unit, and one end of the digital audio processor with a plug-in port is exposed to the front side wall of the wooden cabinet body. In the above structure, the sound box components are directly installed in the cabinet body, and the wooden cabinet body structure serves as the shell of the sound box, which effectively simplifies the structure of the sound box and reduces the cost while realizing the function of sound amplification.
[0015] Further improved, the controller comprises a bottom plate, a cover shell and a cover plate, the cover shell comprises a front panel inclined from back to front in the up-down direction, and the touch display screen is embedded on the front panel; the two ends of the front panel are respectively bent back to form left and right side plates, the bottom plate is connected with the top plate of the wooden cabinet body, and the two ends of the bottom plate exceed the two ends of the top plate of the wooden cabinet body to form mounting skirts, the lower ends of the left and right side plates are respectively bent inward to form horizontal first connecting plates, and the two first connecting plates are respectively connected with the two mounting skirts; the rear ends of the left and right side plates are respectively detachably connected with the metal support, the upper end surface of the cover shell is flush with the upper end surface of the metal support, and the cover plate is detachably sleeved on the top of the cover shell, the metal support and the mesh plate.
[0016] Further improved, the rear ends of the left and right side plates are respectively bent inward to form vertical second connecting plates, and the rear walls of the two second connecting plates are respectively connected with horizontal screws, the front walls of the left and right ends of the metal support are respectively provided with gourd-shaped hanging holes with a width greater than the lower part, and the screw heads of the horizontal screws are respectively hung and matched in the corresponding gourd-shaped hanging holes. In the above improved structure, the rear end of the cover shell is directly matched with the metal support through the horizontal screw and the gourd-shaped hole, which is simple in structure, convenient to disassemble and assemble, and can improve the structural strength after the cover shell is connected.
[0017] Further improved, the upper end of the left and right side plates is provided with a limiting through hole, the lower end surface of the left and right ends of the cover plate is provided with a downward extending limiting plate, and the side wall of the two limiting plates is outwardly protruding and formed with a limiting protrusion for cooperating with the corresponding limiting through hole; the outer periphery of the cover plate is provided with a vertical surrounding plate for being sleeved on the top of the shell and the mesh plate. In the improved structure, the cover plate is inserted and matched with the shell, simple in structure, convenient to install, and limited by the limiting protrusion, so as to ensure the stability of the structure.
[0018] Other improved features and advantages of the present application will be set forth in part in the following detailed description, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the present application. The objects and other advantages of the present application can be realized and attained by means of the instrumentalities particularly pointed out in the description and appended claims. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a perspective view of the unfolded state of the foldable portable intelligent podium of the present application;
[0020] Figure 2 is a perspective view of the unfolded state of the foldable portable intelligent podium of the present application; Figure 1 is another angle perspective view of the foldable portable intelligent podium shown in the figure;
[0021] Figure 3 is a perspective view of the unfolded state of the foldable portable intelligent podium of the present application; Figure 1 is another angle perspective view of the foldable portable intelligent podium shown in the figure;
[0022] Figure 4 is a perspective view of the unfolded state of the foldable portable intelligent podium of the present application; Figure 3 is an enlarged structure view of X in the figure;
[0023] Figure 5 is a split structure view of the connection structure of the wood cabinet body and the metal support in the present application;
[0024] Figure 6 is another angle split structure view of the connection structure of the wood cabinet body and the metal support in the present application;
[0025] Figure 7 is a partial schematic view of the split state of the shell and the metal support in the present application;
[0026] Figure 8 is another angle partial schematic view of the split state of the shell and the metal support in the present application;
[0027] Figure 9 is a partial schematic view of the split state of the cover plate and the shell in the present application;
[0028] Figure 10 is another angle partial schematic view of the split state of the cover plate and the shell in the present application;
[0029] Figure 11 Figure 1 is a perspective view of a folding portable smart podium according to the present application in a folded storage state.
[0030] Reference signs:
[0031] 1, cabinet body; 2, side plate; 3, main table plate; 4, side table plate; 5, loudspeaker unit; 6, digital audio processor; 7, microphone; 8, first connecting piece; 9, second connecting piece; 10, charging socket; 11, touch display screen; 12, support frame; 13, wooden cabinet body; 14, metal support; 15, hinge assembly; 16, mesh plate; 17, bottom plate; 18, cover shell; 19, cover plate; 20, first connecting plate; 21, second connecting plate; 22, transverse screw; 23, gourd hanging hole; 24, limiting through hole; 25, limiting protrusion; 26, vertical fence; 27, fixed plate; 28, positioning hole; 29, conical positioning column; 30, storage cavity; 31, positioning slot; 32, positioning plug-in plate; 33, door plate. DETAILED DESCRIPTION
[0032] First, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can adjust them as needed in order to adapt to specific application occasions.
[0033] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0034] In the embodiments of the present application, unless otherwise explicitly specified and limited, the "upper end" or "lower end" of the first feature to the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium.
[0035] The present application will be further described in detail below in conjunction with the drawings and specific embodiments.
[0036] Reference Figures 1-10As shown, the embodiment of the present application discloses a foldable portable intelligent podium, which comprises a cabinet body 1 and side plates 2 located on both sides of the cabinet body 1, and the lower end surfaces of the two side plates 2 are flush with the lower end surface of the cabinet body 1. In the structure, the cabinet body 1 is a square column structure, the rear ends of the two side plates 2 are respectively hinged to the two sides of the cabinet body 1, and thus the two side plates 2 can rotate left and right relative to the cabinet body 1 to realize the functions of opening and using and closing and storing. In addition, the upper end of the cabinet body 1 is provided with a horizontal main table plate 3, and a side table plate 4 capable of being turned up and down is arranged at each end of the main table plate 3. When the two side table plates 4 are turned open to be located in the same plane as the main table plate 3, a complete podium panel structure is formed. When in use, the ends of the two side table plates 4 away from the main table plate 3 are respectively connected to the two side plates 2 to realize structural limiting and ensure the stability of the entire podium panel. When the podium needs to be stored, the connection limiting of the two side table plates 4 and the two side plates 2 is first released, the two side plates 2 are opened outward at an angle, then the two side table plates 4 are folded downward to a vertical storage state, and then the two side plates 2 are turned inward to be abutted against the two side table plates 4 to realize the storage of the podium. For details, see the accompanying drawings Figure 11 In the structure, the limiting structure of the side table plate 4 and the side plate 2 comprises a first connecting piece 8 and a second connecting piece 9. The first connecting piece 8 is arranged on the lower end surface of the side table plate 4 away from the main table plate 3, and the first connecting piece 8 is provided with a positioning slot 31. The second connecting piece 9 is arranged on the inner wall of the corresponding side plate 2, and the second connecting piece 9 is provided with a positioning plate 32 which is inserted and matched with the positioning slot 31. In other embodiments, the positioning slot 31 and the positioning plate 32 can also be interchanged. Even further simplification can be made by directly opening the positioning slot 31 on the lower end surface of the side table plate 4 and arranging the positioning plate 32 on the second connecting piece 9.
[0037] In the embodiment, in order to improve the multifunctionality of the podium, a sound box is embedded in the rear side of the cabinet body 1, a microphone 7 electrically connected with the sound box is detachably connected to the cabinet body 1 or the side plate 2 or the main table plate 3 or the side table plate 4, and a digital audio processor 6 electrically connected with the sound box is arranged on the front side of the cabinet body 1. Further, a controller is arranged on the top of the cabinet body 1, and the controller is electrically connected with the digital audio processor 6. A touch display screen 11 is arranged on the controller, and the audio system can be controlled by operating the display screen, and the speech timing function can also be realized. In addition, a switch button is arranged on the front panel of the controller for starting and stopping the audio system, and an audio adjustment network port is arranged on the side plate 2 of the controller.
[0038] In the embodiment, in order to simplify the structure of the podium and improve the appearance, preferably, the microphone 7 is two, and the two microphones 7 are symmetrically arranged on the two side table plates 4, as shown in the accompanying drawings Figure 1In some embodiments, the two side platforms 4 are provided with plug-in bases for supplying power signals to the microphones 7, and the two plug-in bases are electrically connected to the digital audio processor 6. In this embodiment, wiring grooves are formed in the lower end surfaces of the two side platforms 4 for embedding audio wires to achieve electrical connection and signal transmission between the microphones 7 and the digital audio processor 6. In other embodiments, the microphones 7 can be wirelessly connected to the digital audio processor 6.
[0039] In another aspect, when the podium is used outdoors, there is no power cable for power supply, so a rechargeable battery is pre-installed in the cabinet 1 for supplying power to the speaker, the microphone 7 and the digital audio processor 6. A charging socket 10 is provided on the side wall of the cabinet 1 and is electrically connected to the rechargeable battery. In this structure, a storage cavity 30 is further provided in the cabinet 1, and a clamping seat for positioning the microphone 7 is provided on the side wall of the storage cavity 30. When the podium is folded for storage, the two microphones 7 can be pulled off from the side platforms 4 and clamped and positioned in the storage cavity 30. A door plate 33 capable of being opened and closed is provided on the front side of the storage cavity 30 to facilitate the taking and placing of the microphone 7.
[0040] In this embodiment, a controller is further installed on the top of the cabinet 1, so the main platform 3 extends outward and is connected to the front side of the controller. Specifically, a triangular support frame 12 is connected to the front side wall of the upper end of the cabinet 1, the main platform 3 is horizontally installed on the support frame 12, and the two side platforms 4 are respectively pivotally connected to the two sides of the main platform 3. In order to expand the area of the podium panel, the rear ends of the two side platforms 4 respectively extend backward. Preferably, the two side platforms 2 are inwardly curved arc-shaped plates, and the outer end surfaces of the two side platforms 4 are arc-shaped surfaces matched with the arc-shaped plates to improve the aesthetics of the entire podium. In addition, the rear ends of the two side platforms 2 are connected to the two sides of the rear end of the cabinet 1, so that only the rear side plate 2 of the cabinet 1 can be seen from the rear side of the podium, and the other parts of the cabinet 1 are hidden between the two side platforms 2, which also improves the appearance of the podium.
[0041] Preferably, referring to the drawings, Figure 1 , 5 and 6, the cabinet 1 includes a wooden cabinet body 13 and a metal support 14, the metal support 14 is detachably connected to the rear side plate 2 of the wooden cabinet body 13. The metal support 14 is assembled and welded by two vertical columns and five horizontal rods. The outer walls of the two vertical columns are respectively connected with vertically extending hinge assemblies 15. The two side platforms 2 are wooden plates, and the rear sides of the two side platforms 2 are respectively connected with the other sides of the corresponding hinge assemblies 15. Due to structural limitations, the three horizontal rods in the middle are connected to the rear side plate 2 of the cabinet 1 by at least two connecting screws.
[0042] In this embodiment, the upper end of the wood cabinet body 13 is provided with a receiving cavity, the receiving cavity is provided with a speaker unit 5 and a digital audio processor 6 which are electrically connected with each other, the rear side plate 2 of the wood cabinet body 13 is provided with an avoiding hole for the horn opening end of the speaker unit 5 to pass through, and the front side plate 2 of the wood cabinet body 13 is provided with a corresponding mounting hole, one end of the digital audio processor 6 which has a plug-in function is embedded in the mounting hole. Specifically, the LINE interface and the MIC interface are arranged on the exposed front panel of the digital audio processor 6, and in addition, the charging indicator lamp and the power indicator lamp are arranged below the plurality of function interfaces, which are used to display the state of the rechargeable battery in real time. In addition, the mesh plate 16 is connected to the rear side of the metal support 14 in the above structure to form an active sound box with audio processing function. In this structure, the wood cabinet body 13 structure serves as the shell of the sound box, and the speaker unit 5 is provided with a power amplifier module, the signal output end of the digital audio processor 6 is connected with the power amplifier module, which effectively simplifies the structure of the traditional sound box and reduces the cost.
[0043] In addition, referring to the accompanying drawings Figure 7 、 8 In this embodiment, the mounting structure of the controller and the cabinet body 1 is also specially designed. Specifically, the controller includes a bottom plate 17, a cover 18 and a cover plate 19. The cover 18 includes a front panel which is inclined from back to front in the up-down direction, and the touch display screen 11 is installed on the front panel. The two ends of the front panel are respectively bent back to form left and right side plates 2. The bottom plate 17 is connected with the top plate of the wood cabinet body 13, and the two ends of the bottom plate 17 exceed the two ends of the top plate of the wood cabinet body 13 to form mounting skirts. The lower ends of the left and right side plates 2 are both bent inward to form horizontal first connecting plates 20, and the two first connecting plates 20 are respectively connected with the two mounting skirts. The rear ends of the left and right side plates 2 are respectively detachably connected with the metal supports 14, and the cover plate 19 is detachably sleeved on the top of the cover 18.
[0044] More specifically, the rear ends of the left and right side plates 2 are both bent inward to form vertical second connecting plates 21, and the rear walls of the two second connecting plates 21 are both connected with transverse screws 22. The front walls of the left and right ends of the metal supports 14 are both provided with gourd-shaped hanging holes 23 with the upper part being wider than the lower part, and the screw heads of the transverse screws 22 are respectively hung and matched in the corresponding gourd-shaped hanging holes 23.
[0045] More specifically, continuing to refer to the accompanying drawings Figure 9 、 10At the upper end of the left and right side plates 2, a limiting through hole 24 is formed, and at the lower end surface of the left and right ends of the cover plate 19, a downward extending positioning plug plate 32 is arranged, and on the side wall of the two positioning plug plates 32, a limiting protrusion 25 is formed outwardly and protruding for cooperating with the corresponding limiting through hole 24; the outer periphery of the cover plate 19 is provided with a vertical surrounding plate 26 for being sleeved on the top of the cover shell 18, the metal support 14 and the mesh plate 16, so as to ensure the flat and beautiful appearance.
[0046] In the above structure, in order to further ensure the structural strength after the cover shell 18 is connected and the stability after the cover plate 19 is covered, a rectangular fixing plate 27 is additionally arranged at the top of the cover shell 18, the rear end of the fixing plate 27 is detachably connected to the top of the metal support 14 through a screw, the front end of the fixing plate 27 is detachably connected to the top of the front panel through a screw, and a horizontal connecting plate is arranged at the top of the front panel; and four positioning holes 28 in a rectangular shape are formed on the fixing plate 27, and four tapered positioning columns 29 are outwardly and protrudingly formed on the lower end surface of the cover plate 19 for being inserted and matched with the positioning holes 28. After being arranged in this way, when the cover plate 19 is pressed and assembled, the four tapered positioning columns 29 are aligned with the four positioning holes 28, and the cover plate 19 is pressed and assembled from top to bottom, so as to ensure that the limiting protrusions 25 are accurately clamped with the limiting through holes 24, and the structure is more stable and firm after being clamped.
[0047] In the above structure, when the controller is installed, the bottom plate 17 preassembled with related components is connected to the top plate of the cabinet body 1 through a screw, and then the cover shell 18 preassembled with corresponding components is installed, when the cover shell 18 is installed, the cover shell 18 is first moved to the upper end of the bottom plate 17, and then slowly moved backward to ensure that the transverse screw 22 at the rear end of the left side plate 2 of the cover shell 18 is aligned with the large hole part of the gourd hanging hole 23 on the metal support 14, and then the cover shell 18 is moved downward, so that the screw head part of each transverse screw 22 is clamped and limited in the small hole part of the gourd hanging hole 23; then the operation is performed from below the two installation skirt plates, the connection and fixation of the lower ends of the left and right side plates 2 of the cover shell 18 with the bottom plate 17 are realized by driving the screw from bottom to top; finally, the cover plate 19 is installed, and here the cover plate 19 is directly pressed and assembled from top to bottom, until the limiting protrusions 25 on the two positioning plug plates 32 are matched and limited with the two limiting through holes 24. After the installation is completed, no fastener can be seen from the outside, and the overall appearance of the podium is effectively improved.
[0048] In addition, in the present embodiment, a plurality of support feet are connected to the bottom of the cabinet body 1 and the bottom of the two side plates 2, so as to avoid the direct contact and friction of the wood material with the ground, and affect the service life.
[0049] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", and the like indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or member must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0050] In the description of the present application, the description referring to the terms "one embodiment", "some embodiments", "in this embodiment", and the like means that the specific features, mechanisms, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in the specification and the features of the different embodiments or examples can be combined and combined by those skilled in the art without contradiction.
[0051] The above is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A portable lectern, characterized in that: The cabinet includes a cabinet body (1) and side panels (2) on both sides of it. The rear ends of the two side panels (2) are respectively hinged to the two sides of the cabinet body (1), and the lower end surfaces of the two side panels (2) are flush with the lower end surfaces of the cabinet body (1). A horizontal main table (3) is provided at the upper end of the cabinet body (1). The left and right ends of the main table (3) are respectively provided with side tables (4) that can be flipped up and down. When the two side tables (4) are flipped up to be flush with the main table (3), the outer ends of the two side tables (4) are detachably connected to the inner walls of the two side panels (2).
2. The portable lectern according to claim 1, characterized in that: The two side plates (4) are provided with a first connector (8) on the lower end surface away from the main plate (3). The first connector (8) is provided with a positioning slot (31) or a positioning insert (32). The inner walls of the two side plates (2) are provided with a second connector (9). The two second connectors (9) are provided with a positioning insert (32) or a positioning slot (31) respectively.
3. The portable lectern according to claim 1, characterized in that: A speaker is provided at the rear end of the cabinet (1), and a microphone (7) electrically connected to the speaker is detachably connected to the cabinet (1), side panel (2), main panel (3), or side panel (4).
4. The portable lectern according to claim 3, characterized in that: The cabinet (1) is equipped with a battery for powering the speaker and microphone (7); a charging socket (10) electrically connected to the battery is provided on the side wall of the cabinet (1).
5. The portable lectern according to claim 3 or 4, characterized in that: The top of the cabinet (1) is equipped with a controller, which is electrically connected to the speaker; the controller is equipped with a touch screen (11), an audio adjustment port and a switch; the main platform (3) is located in front of the controller.
6. The portable lectern according to claim 5, characterized in that: The cabinet (1) includes a wooden cabinet body (13) and a metal bracket (14). The metal bracket (14) is detachably connected to the rear side panel (2) of the wooden cabinet body (13), and the upper surface of the metal bracket (14) is higher than the upper surface of the wooden cabinet body (13). Both sides of the metal bracket (14) are connected to vertically extending hinge assemblies (15). Both side panels (2) are made of wood, and the rear sides of the two side panels (2) are respectively connected to the other side of the corresponding hinge assembly (15).
7. The portable lectern according to claim 6, characterized in that: The wooden cabinet body (13) is equipped with a speaker unit (5) with a power amplifier module. The rear side panel (2) of the wooden cabinet body (13) is provided with a clearance hole for the speaker unit (5) to pass through. The rear side of the metal bracket (14) is connected to a mesh plate (16). The wooden cabinet body (13) is also equipped with a digital audio processor (6) that is electrically connected to the speaker unit (5). One end of the digital audio processor (6) with a plug-in port is exposed on the front side wall of the wooden cabinet body (13).
8. The portable lectern according to claim 7, characterized in that: The controller includes a base plate (17), a housing (18), and a cover plate (19). The housing (18) includes a front panel that slopes from back to front in a vertical direction. The touch screen (11) is embedded in the front panel. The two ends of the front panel are bent backward to form left and right side panels (2). The base plate (17) is connected to the top plate of the wooden cabinet body (13), and the two ends of the base plate (17) extend beyond the two ends of the top plate of the wooden cabinet body (13) to form mounting skirts. The lower ends of the left and right side plates (2) are bent inward to form a horizontal first connecting plate (20), and the two first connecting plates (20) are respectively connected to the two mounting skirts; the rear ends of the left and right side plates (2) are respectively detachably connected to the metal bracket (14), the upper end face of the cover (18) is flush with the upper end face of the metal bracket (14), and the cover plate (19) is detachably fitted on the top of the cover (18), the metal bracket (14) and the mesh plate (16).
9. The portable lectern according to claim 8, characterized in that: The rear ends of the left and right side plates (2) are bent inward to form a vertical second connecting plate (21), and the rear side walls of the two second connecting plates (21) are connected with horizontal screws (22). The front side walls of the left and right ends of the metal bracket (14) are provided with gourd hanging holes (23) with an upper width greater than the lower width. The screw heads of each horizontal screw (22) are respectively mounted and fitted in the corresponding gourd hanging holes (23).
10. The portable lectern according to claim 8, characterized in that: The upper ends of the left and right side plates (2) are provided with limiting through holes (24), and the lower end surfaces of the left and right ends of the cover plate (19) are provided with downwardly extending limiting plates, and the side walls of the two limiting plates are provided with limiting protrusions (25) for cooperating with the corresponding limiting through holes (24); the outer periphery of the cover plate (19) is provided with vertical surrounding plates (26) for fitting on the top of the cover (18) and the mesh plate (16).