Portable multimedia all-in-one machine

Abstract

The invention discloses a portable multimedia all-in-one machine, and belongs to the technical field of electronic information, the portable multimedia all-in-one machine comprises a case, two electric lifting rods are installed in the case, a storage box and a stretching mechanism are arranged between the two electric lifting rods, the bottom of the stretching mechanism is fixedly connected with a curtain, and the curtain is fixedly connected with the bottom of the storage box. An operation control assembly and a power source are installed in the machine box, and a plurality of hidden type moving mechanisms are arranged at the positions, close to the bottom, in the machine box, the stretching mechanism is designed, a servo motor drives a two-way lead screw to rotate, a sleeve rod is driven to stretch through a sliding block on the two-way lead screw, the two-way lead screw is driven to rotate, and the two-way lead screw is driven to stretch. The stretching mechanism can stretch to a sufficient distance, a curtain can be conveniently placed for follow-up throwing, when the stretching mechanism does not need to be used, the stretching mechanism can retract into the machine box, follow-up carrying is convenient, teaching personnel do not need to use external equipment for throwing through the stretching mechanism, and operation is easy and fast.

Description

Technical Field

[0001] The invention belongs to the technical field of electronic information, and in particular relates to a portable multimedia all-in-one machine. Background Art

[0002] With the rapid development of science and technology, multimedia technology is increasingly used in various fields, and people's demands for information display, demonstration, entertainment, etc. are constantly increasing. It organically integrates the computer's processing power, the projector's projection function, the speaker's audio playback function, and the screen's display function into a relatively compact chassis. By optimizing the internal structure design and using lightweight materials, the size and weight of the device are greatly reduced while ensuring functional integrity, thereby improving the portability of the device.

[0003] When traditional multimedia all-in-one machines are projecting, they still need to install and stretch an independent screen before subsequent projection. This process is complicated and time-consuming. After the work is completed, it needs to be recovered and moved. During transportation, it also takes up extra space to place the independent screen installation components and takes more time to transport, reducing the overall transportation efficiency of the device. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a portable multimedia all-in-one machine.

[0005] The technical solution adopted to solve the above technical problems is: a portable multimedia all-in-one machine, comprising a chassis, two electric lifting rods are installed inside the chassis, a storage box and an extension mechanism are respectively arranged between the two electric lifting rods, and a curtain is fixedly connected to the bottom of the extension mechanism;

[0006] A telescopic plate is installed at the top of the chassis, an ultra-short-throw projector is fixedly connected to the top of the telescopic plate at the other end, a support frame is fixedly connected to the bottom of the telescopic plate, a storage hole is opened at the front end of the chassis, and two shoulder straps are fixedly connected to the rear end of the chassis;

[0007] A push-pull rod is installed at the top of the chassis, an operation control assembly and a power supply are installed inside the chassis, and a plurality of hidden moving mechanisms are arranged at the bottom of the chassis.

[0008] Furthermore, the extending mechanism includes a fixed box fixedly connected to the tops of the two electric lifting rods, a servo motor is installed inside the fixed box, the output end of the servo motor is fixedly connected to a first conical tooth, the inside of the fixed box is rotatably connected to a bidirectional screw rod, the outer wall of the bidirectional screw rod is fixedly connected to a second conical tooth, the outer wall of the bidirectional screw rod is slidably connected to two sliding blocks, the inside of the fixed box is fixedly connected to a sleeve, the inside of the sleeve is slidably connected to a sleeve rod at both ends, the outer walls of the two sleeve rods are fixedly connected to connecting blocks at the inner ends, the outer wall of the sleeve is provided with two sliding grooves, and the outer walls of the two sleeve rods are fixedly connected to fixing clamps at the outer ends.

[0009] Through the above technical solution, after the servo motor is started as a power source, the first conical tooth fixedly connected to its output end will rotate accordingly. Since the first conical tooth and the second conical tooth fixedly connected to the outer wall of the bidirectional screw rod are meshed with each other, when the first conical tooth rotates, the second conical tooth can be driven to rotate through the transmission effect between the teeth, thereby causing the bidirectional screw rod to start rotating. Because the bidirectional threads of the bidirectional screw rod are set in opposite directions, when the screw rod rotates, the two sliders will slide in opposite directions along the screw rod. During the movement of the slider, due to the connection relationship between the slider and the connecting block, , which will drive the connecting block to move. The connecting block is fixed on the sleeve rod, and the sleeve rod is slidably connected to the two ends of the sleeve. Therefore, the movement of the connecting block will cause the sleeve rod to perform corresponding telescopic movement inside the sleeve, and the sleeve rod will slide along the direction defined by the sliding groove on the sleeve. As the sleeve rod moves in telescopic movement, the fixing clamp fixedly connected to the outer wall of the sleeve rod near the outer end will also produce corresponding movement. The distance between the two fixing clamps will increase or decrease according to the telescopic situation of the sleeve rod, thereby realizing operations such as clamping or loosening the curtain and achieving the expected functional effect of the extension mechanism.

[0010] Furthermore, the first conical teeth and the second conical teeth are in meshing state with each other.

[0011] Through the above technical solution, the meshing of the conical teeth can easily change the direction of power transmission. Through the meshing of the first conical teeth and the second conical teeth, the rotation direction of the motor output shaft can be changed to the rotation direction required by the bidirectional screw according to the design requirements, so that the entire power transmission route can be reasonably laid out to meet the space and functional requirements of the mechanism.

[0012] Furthermore, the connecting block is fixedly connected between the sliding block and the sleeve rod, and the outer wall of the connecting block fits and slides on the corresponding inner wall of the sliding groove.

[0013] Through the above technical solution, the sliding groove provides a clear and fixed sliding path for the connecting block, so that the connecting block can only move along this predetermined direction. Since the connecting block connects the slider and the sleeve rod, it indirectly defines the exact direction of the movement of the slider and the telescopic movement of the sleeve rod in the sleeve, avoiding them from shaking or offsetting from the expected direction, thereby ensuring the standardization and predictability of the overall action of the mechanism.

[0014] Furthermore, the top of the curtain is connected to a fixing clip, and the curtain is installed inside the storage box.

[0015] Through the above technical solution, the fixing clip can provide a stable connection point for the top of the screen, fix the screen by clamping, and the storage box can provide a relatively closed storage environment for the screen, avoiding the direct exposure of the screen to the outside air, reducing the adhesion of impurities such as dust and water vapor to the surface of the screen, and preventing these impurities from affecting the projection effect of the screen or causing erosion and damage to the screen material. The screen is stored in a specific storage box, which is convenient for the staff to uniformly manage and maintain the screen.

[0016] Furthermore, the operation control component is composed of a processor, a mainboard, a hard disk and multiple interfaces.

[0017] Through the above technical solution, the processor, as the brain of the entire operation control component, can quickly execute various instructions and perform high-speed calculations on the input information. The mainboard has intricate but well-planned circuit wiring and various slots, interfaces, etc., which can stably and accurately connect the processor, hard disk, and multiple interfaces and other components together to ensure normal data transmission and power supply between various components. The hard disk can be used to store various program codes, configuration parameters, and related historical data required for the operation of the operation control component. Multiple interfaces enable the operation control component to be connected to a variety of external devices, expanding its functions and application scope.

[0018] Furthermore, the hidden moving mechanism includes two electric push rods installed inside the chassis, the output ends of the two electric push rods are fixedly connected to push-pull plates, a moving block is slidably connected between the two push-pull plates, limiting holes are provided at the front and rear ends of the moving block, limiting springs are fixedly connected inside the two limiting holes, the other ends of the two limiting springs are fixedly connected to limiting balls, and the bottom of the moving block is rotatably connected to a moving wheel.

[0019] When the movable block is slidably connected between the two push-pull plates, the movable block will continuously move down and out of the interior of the chassis. When the movable block moves normally, the limit spring is in a certain compression state. After the movable block moves to the specified position, the limit spring will push the limit ball into the specified hole to achieve the limiting effect, thereby preventing one of the hidden movable mechanisms from being retracted into the interior of the chassis due to external influences during the transportation of the chassis, thus affecting transportation. When the chassis does not need to be moved, the electric push rod can work in the opposite direction, pushing the push-pull plate outward and squeezing the movable block back to the original hidden position inside the chassis. At this time, the movable wheel is out of contact with the ground, and the chassis returns to a relatively fixed placement state, which not only maintains the stability of the chassis during normal placement, but also enables the mobile function to be conveniently realized when needed.

[0020] Furthermore, a hidden hole corresponding to the moving wheel is opened inside the chassis, and an electric hidden door is slidably connected thereto.

[0021] Through the above technical solution, the hidden hole opened inside the chassis provides a special storage space for the moving wheels. When the chassis does not need to be moved, the moving wheels can be smoothly stored in the hidden hole through the relevant actions of the hidden moving mechanism, so that the bottom appearance of the chassis remains flat, which is no different from the appearance of conventional fixed equipment. It not only improves the overall aesthetics, but also avoids the moving wheels from being exposed to the outside for a long time and being subjected to accidental collisions, wear and tear, and being contaminated by dust and debris, which helps to extend the service life of the moving wheels and ensures that they can still function normally when needed in the future. The electric hidden door can close the hidden hole after the moving wheel is stored in the hidden hole, which plays a protective role. It can prevent external dust, water vapor, debris, etc. from entering the hidden hole and thereby affecting the normal operation of the moving wheels and other related components of the hidden moving mechanism, and avoid problems such as component jamming and rusting due to accumulation of impurities.

[0022] The beneficial effects of the present invention are as follows: (1) The present invention designs an extension mechanism, drives the bidirectional screw to rotate through a servo motor, and drives the sleeve rod to extend through a slider on the bidirectional screw, so that the extension mechanism can extend to a sufficient distance, which is convenient for placing the screen for subsequent projection. When it is not needed, the extension mechanism will retract into the chassis, which is convenient for subsequent transportation. The extension mechanism makes it unnecessary for teaching staff to use external equipment for projection, and the operation is simple and fast. (2) The present invention designs a hidden moving mechanism. When the chassis needs to be transported, it only needs to start the hidden moving mechanism, and the moving wheels inside the hidden moving mechanism will be squeezed out of the chassis, which is convenient for staff to carry it. When the projection of the chassis needs to be used, the hidden moving mechanism is recovered, and the moving wheels are separated from the contact with the ground, and the chassis returns to a relatively fixed placement state, which maintains the stability of the chassis when it is usually placed. (3) The present invention designs a push-pull rod, a shoulder strap and a hidden moving mechanism, so that a variety of transportation methods can be used by teaching staff. The transporting staff can choose different methods to carry the device according to actual conditions, which helps them to quickly carry the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a stereogram of the present invention;

[0024] Figure 2 is a rear view of the present invention;

[0025] Figure 3 yes Figure 2 A transverse cross-sectional view of

[0026] Figure 4 It is a schematic diagram of the structure of the chassis in the transport state of the present invention;

[0027] Figure 5 is a schematic diagram of the extension mechanism of the present invention;

[0028] Figure 6 It is a schematic diagram of the internal structure of the fixing box of the present invention;

[0029] Figure 7 is a schematic diagram of the hidden mobile mechanism of the present invention;

[0030] Figure 8 It is a schematic diagram of the internal structure of the moving block of the present invention.

[0031] 1401, electric push rod; 1402, push-pull plate; 1403, moving block; 1404, limiting hole; 1405, limiting spring; 1406, moving wheel; 1407, moving wheel. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] like Figure 1 - Figure 4 As shown, a portable multimedia all-in-one machine of this embodiment includes a chassis 1 , and two electric lifting rods 2 are installed inside the chassis 1 .

[0034] like Figure 3 - Figure 6As shown, a storage box 3 and an extension mechanism 4 are respectively arranged between the two electric lifting rods 2. The extension mechanism 4 includes a fixed box 401 fixedly connected to the top of the two electric lifting rods 2. A servo motor 402 is installed inside the fixed box 401. The output end of the servo motor 402 is fixedly connected to a first conical tooth 403. A bidirectional screw rod 404 is rotatably connected inside the fixed box 401. The outer wall of the bidirectional screw rod 404 is fixedly connected to a second conical tooth 405. The first conical tooth 403 and the second conical tooth 405 are in a meshing state with each other. The meshing of the conical teeth can easily change the transmission direction of the power. 5 is engaged, the rotation direction of the motor output shaft can be changed to the rotation direction required by the bidirectional screw rod 404 according to the design requirements, so that the entire power transmission route can be reasonably arranged to meet the space and function requirements of the mechanism. The outer wall of the bidirectional screw rod 404 is slidably connected to two sliders 406, the interior of the fixed box 401 is fixedly connected to a sleeve 407, the interior of the sleeve 407 is slidably connected to sleeve rods 408 at both ends, and the outer walls of the two sleeve rods 408 are fixedly connected to connecting blocks 409 at the inner ends. The connecting blocks 409 are fixedly connected between the sliders 406 and the sleeve rods 408, and the outer walls of the connecting blocks 409 slide in contact with the corresponding The inner wall of the sliding groove 410 provides a clear and fixed sliding path for the connecting block 409, so that the connecting block 409 can only move along this predetermined direction. Since the connecting block 409 connects the slider 406 and the sleeve rod 408, it indirectly defines the accurate direction for the movement of the slider 406 and the telescopic movement of the sleeve rod 408 in the sleeve 407, avoiding their shaking or deviation from the expected direction, thereby ensuring the standardization and predictability of the overall action of the mechanism. The outer wall of the sleeve 407 is provided with two sliding grooves 410, and the outer walls of the two sleeve rods 408 are fixedly connected with fixing clips 411 at the outer ends, and the extension The bottom of the mechanism 4 is fixedly connected with a curtain 5, the top of the curtain 5 is connected to the fixing clip 411, and the curtain 5 is installed inside the storage box 3. The fixing clip 411 can provide a stable connection point for the top of the curtain 5, and fix the curtain 5 by clamping. The storage box 3 can provide a relatively closed storage environment for the curtain 5, avoid direct exposure of the curtain 5 to the outside air, reduce dust, water vapor and other impurities adhering to the surface of the curtain 5, prevent these impurities from affecting the projection effect of the curtain 5 or causing erosion and damage to the material of the curtain 5, etc. The curtain 5 is stored in a specific storage box 3, which is convenient for the staff to uniformly manage and maintain the curtain 5.

[0035] like Figure 3 - Figure 6As shown, after the servo motor 402 is started as a power source, the first conical tooth 403 fixedly connected to its output end will rotate accordingly. Since the first conical tooth 403 is meshed with the second conical tooth 405 fixedly connected to the outer wall of the bidirectional lead screw 404, when the first conical tooth 403 rotates, the second conical tooth 405 can be driven to rotate through the transmission effect between the teeth, thereby causing the bidirectional lead screw 404 to start rotating. Because the bidirectional threads of the bidirectional lead screw 404 are set in opposite directions, when the lead screw rotates, the two sliders 406 will slide in opposite directions along the lead screw. During the movement of the slider 406, due to the connection relationship between the slider 406 and the connecting block 409, the connecting block 409 will be driven to rotate. 9 moves, the connecting block 409 is fixed on the sleeve rod 408, and the sleeve rod 408 is slidably connected to the two end positions inside the sleeve 407, so the movement of the connecting block 409 will cause the sleeve rod 408 to perform corresponding telescopic movement inside the sleeve 407, and the sleeve rod 408 will slide along the direction defined by the sliding groove 410 on the sleeve 407. As the sleeve rod 408 moves in telescopic manner, the fixing clamp 411 fixedly connected to the outer wall of the sleeve rod 408 near the outer end position will also produce corresponding movement, and the distance between the two fixing clamps 411 will increase or decrease according to the telescopic situation of the sleeve rod 408, so as to realize the clamping or loosening of the curtain 5 and achieve the expected functional effect of the extension mechanism 4.

[0036] like Figure 1 - Figure 3 As shown, a telescopic plate 6 is installed at the top position of the chassis 1, and an ultra-short-throw projector 7 is fixedly connected to the top of the telescopic plate 6 at the other end position, and a support frame 8 is fixedly connected to the bottom of the telescopic plate 6. A storage hole 9 is opened at the front end of the chassis 1, and two shoulder straps 10 are fixedly connected to the rear end of the chassis 1. A push-pull rod 11 is installed at the top position of the chassis 1, and an operation control component 12 and a power supply 13 are installed inside the chassis 1. The operation control component 12 is composed of a processor, a mainboard, a hard disk and a plurality of interfaces. The processor, as the brain of the entire operation control component 12, can quickly execute various instructions and perform high-speed calculation processing on the input information. The mainboard has intricate but reasonably laid out circuit wiring and various slots, interfaces, etc., which can stably and accurately connect the processor, hard disk and multiple interfaces and other components together to ensure normal data transmission and power supply between the components. The hard disk can be used to store various program codes, configuration parameters and related historical data required for the operation of the operation control component 12. Multiple interfaces enable the operation control component 12 to be connected to various external devices to expand its functions and application range.

[0037] like Figure 7 and Figure 8As shown, a plurality of hidden moving mechanisms 14 are arranged at the bottom of the chassis 1, and the hidden moving mechanisms 14 include two electric push rods 1401 installed inside the chassis 1, the output ends of the two electric push rods 1401 are fixedly connected with push-pull plates 1402, a moving block 1403 is slidably connected between the two push-pull plates 1402, and limiting holes 1404 are provided at the front and rear ends of the moving block 1403, limiting springs 1405 are fixedly connected inside the two limiting holes 1404, and the other ends of the two limiting springs 1405 are fixedly connected with limiting balls 1406, and a moving wheel 1407 is rotatably connected to the bottom of the moving block 1403, a hidden hole corresponding to the moving wheel 1407 is provided inside the chassis 1, and an electric hidden door is slidably connected, and the hidden hole provided inside the chassis 1 provides a special storage space for the moving wheel 1407.

[0038] like Figure 7 and Figure 8As shown, when the chassis 1 does not need to be moved, the moving wheel 1407 can be smoothly stored in the hidden hole through the relevant actions of the hidden moving mechanism 14, so that the bottom appearance of the chassis 1 remains flat, which is no different from the appearance of a conventional fixed device, not only improving the overall aesthetics, but also preventing the moving wheel 1407 from being exposed to the outside for a long time from accidental collision, wear and contamination with dust and debris, etc., which helps to extend the service life of the moving wheel 1407 and ensure that it can still function normally when it is needed in the future. The electric hidden door can seal the hidden hole after the moving wheel 1407 is stored in the hidden hole, which plays a protective role. It can prevent external dust, water vapor, debris, etc. from entering the hidden hole and then affecting the normal operation of the moving wheel 1407 and other related parts of the hidden moving mechanism 14, and avoid problems such as component jamming and rusting due to accumulation of impurities. When it is necessary to start the hidden moving mechanism 14 to realize the movement of the chassis 1, the electric push rod 1401 installed inside the chassis 1 will receive the corresponding starting signal, and the electric push rod 1401 starts The output end of the push rod starts to contract, and then pushes the push-pull plate 1402 fixedly connected thereto to move backward. Since the moving block 1403 is slidably connected between the two push-pull plates 1402, the moving block 1403 will continuously move down and out of the chassis 1. When the moving block 1403 moves normally, the limit spring 1405 is in a certain compression state. When the moving block 1403 moves to the specified position, the limit spring 1405 will push the limit ball 1406 into the specified hole to achieve the limit effect. In order to prevent one of the hidden moving mechanisms 14 from being affected by external factors and retracting into the inside of the chassis 1 during the transportation of the chassis 1, thereby affecting transportation, when the chassis 1 does not need to be moved, the electric push rod 1401 can work in the reverse direction, pushing the push-pull plate 1402 outward, squeezing the moving block 1403 back to its original hidden position inside the chassis 1. At this time, the moving wheel 1407 is out of contact with the ground, and the chassis 1 returns to a relatively fixed placement state, which not only maintains the stability of the chassis 1 when it is usually placed, but also can conveniently realize the movement function when needed.

[0039] The working principle of this embodiment is as follows: when the chassis 1 needs to be moved, the staff can choose different ways to carry the chassis 1 according to the actual road conditions. When the chassis 1 can be moved on a flat road section, the hidden moving mechanism 14 at the bottom of the chassis 1 is started by pulling the push-pull rod 11, and the electric push rod 1401 installed inside the chassis 1 will receive the corresponding starting signal, and the electric push rod 1401 starts to work, so that the output end of the push rod begins to shrink, thereby pushing the push-pull plate 1402 fixedly connected thereto to move backward, and the moving block 1403 sandwiched in the middle will continue to move down and out of the chassis 1 until the moving wheel 1407 on the moving block 1403 touches the ground, and the limit spring 1405 will push the limit ball 1406 into the specified hole to achieve the limiting effect, so as to prevent one of the hidden moving mechanisms 14 from being retracted into the chassis 1 by external influences during the transportation of the chassis 1, thereby affecting transportation. When the road conditions are not suitable for transportation, the chassis 1 can be carried on the back of the shoulder strap 10 for transportation;

[0040] After the chassis 1 is transported to the specified position, the electric lifting rod 2 can be started. After the extension mechanism 4 on the electric lifting rod 2 is raised to the specified position, the servo motor 402 of the extension mechanism 4 will be started, and the first conical tooth 403 fixedly connected to its output end will rotate accordingly, which can drive the second conical tooth 405 to rotate, thereby causing the bidirectional lead screw 404 to start rotating. Because the bidirectional threads of the bidirectional lead screw 404 are set in opposite directions, when the lead screw rotates, the two sliders 406 will slide in opposite directions along the lead screw. During the movement of the slider 406, due to the connection relationship between the slider 406 and the connecting block 409, the connecting block 409 will be driven to move. The connecting block 409 is fixed on the sleeve rod 408, and the sleeve The rod 408 is slidably connected to the two ends of the sleeve 407, so the movement of the connecting block 409 will cause the sleeve rod 408 to perform corresponding telescopic movement inside the sleeve 407, and the fixing clamp 411 fixedly connected to the outer wall of the sleeve rod 408 near the outer end will also produce corresponding movement. The distance between the two fixing clamps 411 will increase according to the telescopic state of the sleeve rod 408. When the extension mechanism 4 is extended, the fixing clamp 411 will also drive the screen 5 to extend until the screen 5 is fully extended. After completing the extension work, the telescopic plate 6 is pulled out, and after reaching the specified position, the outer end of the telescopic plate 6 is supported by the support frame 8 at the bottom, and the ultra-short-throw projector 7 is started to project on the screen 5 for teaching.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A portable multimedia all-in-one machine, comprising a case (1), characterized in that: Two electric lifting rods (2) are installed inside the chassis (1), a storage box (3) and an extension mechanism (4) are respectively arranged between the two electric lifting rods (2), and a curtain (5) is fixedly connected to the bottom of the extension mechanism (4); A telescopic plate (6) is installed at the top of the chassis (1), an ultra-short-throw projector (7) is fixedly connected to the top of the telescopic plate (6) at the other end, a support frame (8) is fixedly connected to the bottom of the telescopic plate (6), a storage hole (9) is provided at the front end of the chassis (1), and two shoulder straps (10) are fixedly connected to the rear end of the chassis (1); A push-pull rod (11) is installed at the top of the chassis (1), an operation control assembly (12) and a power supply (13) are installed inside the chassis (1), and a plurality of hidden moving mechanisms (14) are arranged at the bottom of the chassis (1).

2. The portable multimedia integrated device according to claim 1, characterized in that: The extension mechanism (4) comprises a fixing box (401) fixedly connected to the top of the two electric lifting rods (2), a servo motor (402) is installed inside the fixing box (401), the output end of the servo motor (402) is fixedly connected to a first conical tooth (403), the inside of the fixing box (401) is rotatably connected to a bidirectional screw rod (404), the outer wall of the bidirectional screw rod (404) is fixedly connected to a second conical tooth (405), and the outer wall of the bidirectional screw rod (404) is fixedly connected to a second conical tooth (405). Two sliding blocks (406) are slidably connected to the wall; a sleeve (407) is fixedly connected inside the fixed box (401); sleeve rods (408) are slidably connected inside the sleeve (407) at both ends; outer walls of the two sleeve rods (408) are fixedly connected to connecting blocks (409) at the inner ends; two sliding grooves (410) are provided on the outer wall of the sleeve (407); and fixing clamps (411) are fixedly connected to the outer walls of the two sleeve rods (408) at the outer ends.

3. The portable multimedia integrated device according to claim 2, characterized in that: The first conical teeth (403) and the second conical teeth (405) are in meshing state with each other.

4. The portable multimedia integrated device according to claim 2, characterized in that: The connecting block (409) is fixedly connected between the sliding block (406) and the sleeve rod (408), and the outer wall of the connecting block (409) is fitted and slid on the inner wall of the corresponding sliding groove (410).

5. The portable multimedia integrated device according to claim 2, characterized in that: The top of the curtain (5) is connected to the fixing clip (411), and the curtain (5) is installed inside the storage box (3).

6. The portable multimedia integrated device according to claim 1, characterized in that: The operation control component (12) is composed of a processor, a mainboard, a hard disk and a plurality of interfaces.

7. The portable multimedia integrated device according to claim 1, characterized in that: The concealed moving mechanism (14) comprises two electric push rods (1401) installed inside the chassis (1); the output ends of the two electric push rods (1401) are fixedly connected to push-pull plates (1402); a moving block (1403) is slidably connected between the two push-pull plates (1402); a limiting hole (1404) is provided at the front and rear ends of the moving block (1403); the insides of the two limiting holes (1404) are fixedly connected to limiting springs (1405); the other ends of the two limiting springs (1405) are fixedly connected to limiting balls (1406); and the bottom of the moving block (1403) is rotatably connected to a moving wheel (1407).

8. The portable multimedia integrated device according to claim 7, characterized in that: A hidden hole corresponding to the moving wheel (1407) is provided inside the chassis (1), and an electric hidden door is slidably connected thereto.

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