Foldable portable holographic projection teaching demonstration equipment

Abstract

The invention relates to the technical field of demonstration equipment, in particular to foldable portable holographic projection teaching demonstration equipment which comprises a storage box, moving wheels and a push handle rod, the four moving wheels are mounted at the bottom of the storage box, the push handle rod is fixedly mounted on one side of the storage box, and the foldable portable holographic projection teaching demonstration equipment further comprises a main body assembly; the main body assembly comprises a folding frame, a lifting frame, a position adjusting main frame, a projection instrument, a self-adjusting component and a connecting and deploying component, the folding frame is rotatably installed on the storage box, the lifting frame is slidably installed on the folding frame, the position adjusting main frame is slidably installed on the lifting frame, the projection instrument is connected with the position adjusting main frame through the connecting and deploying component, and the self-adjusting component is connected with the storage box. The connecting and deploying component is connected with the position adjusting main frame, the projection position and the projection height of the corresponding projection equipment can be rapidly and flexibly adjusted according to different use conditions through the arranged components, and the device is more convenient in actual use.

Description

Technical Field

[0001] This invention relates to the field of demonstration equipment technology, and in particular to a foldable portable holographic projection teaching demonstration device. Background Technology

[0002] Existing holographic projection teaching demonstration equipment uses three-dimensional imaging technology to present abstract scientific concepts, complex historical scenes, or microscopic biological structures in the classroom in an intuitive and dynamic way. For example, in chemistry teaching, molecular models can be rotated 360 degrees to display, and in history classes, the original appearance of cultural relics can be restored and virtual explanations can be used to enhance immersion. Its core advantage lies in breaking through the limitations of traditional flat displays, significantly improving the fun of learning and knowledge retention through multi-angle observation. At the same time, the characteristic of not requiring physical contact reduces teaching costs and provides a safe and repeatable virtual practice environment for precious cultural relics or high-risk experiments (such as volcano simulation), becoming an innovative tool for integrating technology and humanities in modern education.

[0003] In practical use, existing holographic projection teaching demonstration equipment usually requires the on-site installation of corresponding brackets to support the projection equipment at a certain height, ensuring stable projection. However, manually setting up the brackets on-site for debugging and installation not only requires operators to build the brackets in advance, but also necessitates continuous manual adjustments to the bracket height and position based on the actual projection range. This results in existing holographic projection teaching demonstration equipment often requiring a significant amount of time for installation and position adjustments, making it very inconvenient in actual use. Summary of the Invention

[0004] The purpose of this invention is to provide a foldable portable holographic projection teaching demonstration device, which can quickly and flexibly adjust the projection position and projection height of the corresponding projection device according to different usage situations through the provided components, making it more convenient in actual use.

[0005] To achieve the above objectives, the present invention provides a foldable portable holographic projection teaching demonstration device, including a carrying case, wheels, and a push handle. The four wheels are installed at the bottom of the carrying case, and the push handle is fixedly installed on one side of the carrying case. The device also includes a main body component. The main components include a folding frame, a lifting frame, an adjustment main frame, a projector, a self-adjusting component, and a connecting and adjusting component. The folding frame is rotatably mounted on the receiving box, the lifting frame is slidably mounted on the folding frame, and the adjustment main frame is slidably mounted on the lifting frame. The projector is connected to the adjustment main frame via the connecting and adjusting component. The self-adjusting component is connected to the receiving box to drive the corresponding structure. The connecting and adjusting component is connected to the adjustment main frame to adjust the actual projection range of the projector.

[0006] The self-adjusting component includes a folding motor, an electrical control module, and a displacement adjustment component. The output shaft of the folding motor is connected to the folding frame, and the folding motor is fixedly installed on the receiving box. The electrical control module is installed on the receiving box and electrically connected to the folding motor, and is used to control the corresponding electrical components. The displacement adjustment component is connected to the lifting frame and is used to drive the corresponding frame.

[0007] The connecting and adjusting components include a transverse sliding component, a side adjusting frame, a rotation frame, a main control component, and a lateral drive component. The transverse sliding component is slidably mounted on the main adjusting frame; the side adjusting frame is slidably mounted on the transverse sliding component; the rotation frame is rotatably mounted on the side adjusting frame, and the projection instrument is rotatably mounted on the rotation frame; the main control component is connected to the side adjusting frame and is used to drive the corresponding frame; the lateral drive component is connected to the main adjusting frame and is used to drive the transverse sliding component to move.

[0008] The displacement adjustment component includes a lifting screw, a lifting motor, an adjusting screw, and an adjusting motor. The lifting screw is threadedly connected to the lifting frame and rotatably mounted on the folding frame. The output shaft of the lifting motor is connected to the lifting screw, and the lifting motor is electrically connected to the electrical control module and fixedly mounted on one side of the folding frame. The adjusting screw is threadedly connected to the adjusting main frame and rotatably mounted on the lifting frame. The output shaft of the adjusting motor is connected to the adjusting screw, and the adjusting motor is electrically connected to the electrical control module and fixedly mounted on one side of the lifting frame.

[0009] The main control component includes a side drive screw, a transmission mechanism, and a transmission motor. The side drive screw is threadedly connected to the side adjustment frame and rotatably mounted on the transverse moving member. The transmission mechanism is connected to the side drive screw and mounted on the transverse moving member. The output shaft of the transmission motor is connected to the transmission mechanism and drives the side drive screw to rotate through the transmission mechanism. The transmission motor is electrically connected to the electronic control module and is fixedly mounted on the transverse moving member.

[0010] The lateral drive component includes a lateral shifting frame, a lead screw, a rotating mechanism, and a drive motor. The lateral shifting frame is slidably mounted on the main adjustment frame. The lead screw is threadedly connected to the lateral shifting frame and rotatably mounted on the main adjustment frame. The rotating mechanism is connected to the lead screw and mounted on the main adjustment frame. The output shaft of the drive motor is connected to the rotating mechanism and drives the lead screw to rotate through the rotating mechanism. The drive motor is electrically connected to the electronic control module and is fixedly mounted on the main adjustment frame.

[0011] The main control component further includes a rotating frame drive mechanism, a rotary motor, and a tilting motor. The rotating frame drive mechanism is connected to the indexing frame and is mounted on the side adjustment frame. The output shaft of the rotary motor is connected to the rotating frame drive mechanism and drives the indexing frame to rotate through the rotating frame drive mechanism. The rotary motor is electrically connected to the electronic control module and is fixedly mounted on the side adjustment frame. The output shaft of the tilting motor is connected to the projection instrument. The tilting motor is electrically connected to the electronic control module and is fixedly mounted on the indexing frame.

[0012] The lateral drive component further includes a lower clamp, a side toothed belt, an adapter gear, and a drive motor. The lower clamp is slidably mounted on the lateral movement frame. The side toothed belt is fixedly mounted on one side of the lower clamp. The adapter gear meshes with the side toothed belt and is rotatably mounted on one side of the lateral movement frame. The output shaft of the drive motor is connected to the adapter gear. The drive motor is electrically connected to the electronic control module and is fixedly mounted on the lateral movement frame.

[0013] The main component further includes a side-rotating bracket, a loudspeaker mechanism, a side-rotating worm gear, and a synchronous adjustment component. The two side-rotating brackets are rotatably mounted on both sides of the receiving box. The two loudspeaker mechanisms are mounted on the two side-rotating brackets. The side-rotating worm gear is fixedly mounted on one side of each side-rotating bracket. The synchronous adjustment component is connected to the receiving box and is used to drive the two side-rotating worm gears to rotate synchronously in opposite directions.

[0014] The synchronous adjustment component includes a worm gear, a synchronous shaft, a linkage mechanism, and a linkage motor. Two worm gears with opposite thread directions respectively engage with two side-rotating worm wheels, and both worm gears are rotatably installed inside the receiving / packing box. The synchronous shaft is fixedly connected to both sides of the two worm gears and is rotatably installed inside the receiving / packing box. The linkage mechanism is connected to the synchronous shaft. The output shaft of the linkage motor is connected to the linkage mechanism, and the linkage motor is electrically connected to the electronic control module and fixedly installed on the receiving / packing box.

[0015] This invention discloses a foldable portable holographic projection teaching demonstration device. In actual operation, the operator first moves the entire device to the corresponding position by pushing the carrying box, and then rotates the projector out by rotating the folding frame. Afterwards, the projection height of the projector can be adjusted according to the actual situation by moving the lifting frame on the folding frame and the adjusting main frame on the lifting frame. During height adjustment, the projection angle and lateral projection position of the projector can also be appropriately adjusted according to the actual usage situation through the connecting adjustment components. This allows the projector to be quickly and flexibly adjusted according to different usage requirements, realizing the ability to quickly and flexibly adjust the projection position and projection height of the corresponding projection device according to different usage situations through the provided components, making it more convenient in actual use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the overall structure of the foldable portable holographic projection teaching demonstration device of the present invention.

[0018] Figure 2 This is a schematic diagram of the installation structure of the folding motor of the present invention.

[0019] Figure 3 This is the invention Figure 2 Enlarged view of point A.

[0020] Figure 4 This is a schematic diagram of the lifting frame of the present invention after it has been lifted.

[0021] Figure 5 This is the invention Figure 4 Enlarged view of point B.

[0022] Figure 6 This is a schematic diagram of the structure of the transverse moving member of the present invention after it has been moved to the right.

[0023] Figure 7 This is the invention Figure 6 Enlarged view of point C.

[0024] Figure 8 This is a schematic diagram of the structure of the transverse component of the present invention after it has been moved to the left.

[0025] Figure 9 This is the invention Figure 8 Enlarged view of point D.

[0026] Figure 10 This is a schematic diagram of the structure of the folding rack of the present invention after it is folded up.

[0027] Figure 11 This is a schematic diagram of the structure of the receiving and packing box of the present invention cut open from the side.

[0028] In the diagram: 101-Collection box, 102-Moving wheels, 103-Push lever, 104-Folding frame, 105-Lifting frame, 106-Adjustment main frame, 107-Projector, 201-Folding motor, 202-Electrical control module, 301-Transverse component, 302-Side adjustment frame, 303-Inverter frame, 401-Lifting screw, 402-Lifting motor, 403-Adjustment screw, 404-Adjustment motor, 501-Side drive screw, 502-Transmission mechanism, 503-Transmission motor 504-Rotating frame drive mechanism, 505-Rotating motor, 506-Tilting motor, 601-Drive transverse frame, 602-Drive lead screw, 603-Rotating mechanism, 604-Drive motor, 605-Lower clamp, 606-Side toothed belt, 607-Adaptive gear, 608-Drive motor, 701-Side rotating bracket, 702-Amplifying mechanism, 703-Side rotating worm gear, 801-Matching worm, 802-Synchronous rotating shaft, 803-Linkage mechanism, 804-Linkage motor. Detailed Implementation

[0029] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of this invention, it should be understood that "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Please see Figures 1 to 11This invention provides a foldable portable holographic projection teaching demonstration device, comprising a carrying case 101, casters 102, a push handle 103, and a main assembly. The main assembly includes a folding frame 104, a lifting frame 105, a positioning main frame 106, a projection instrument 107, a self-adjusting component, and a connecting and adjusting component. The self-adjusting component includes a folding motor 201, an electronic control module 202, and a displacement adjustment component. The connecting and adjusting component includes a horizontal movement component 301, a side adjustment frame 302, a rotation frame 303, a main control component, and a lateral drive component. The displacement adjustment component includes a lifting screw 401, a lifting motor 402, a positioning screw 403, and a positioning motor 404. The main control component includes a side drive screw 501, a transmission mechanism 502, and a transmission motor 503. The lateral drive component includes a driving horizontal movement frame 601, a driving screw 602, a rotating mechanism 603, and a driving motor 604. The main control component also includes a rotating... The system includes a frame-driven mechanism 504, a rotating motor 505, and a tilting motor 506. The lateral driving component also includes a lower clamp 605, a side-mounted toothed belt 606, an adapter gear 607, and a drive motor 608. This solution addresses the problem that existing holographic projection teaching demonstration equipment often requires on-site installation of mounting brackets for more flexible and economical use. These brackets provide support at a certain height to ensure stable projection. However, manually setting up these brackets on-site is inconvenient, requiring operators to build the brackets beforehand and continuously adjust the height and position based on the actual projection area. This results in a significant time commitment for installation and positioning, making the equipment extremely difficult to use.

[0032] Furthermore, four movable wheels 102 are installed at the bottom of the receiving box 101, the push handle 103 is fixedly installed on one side of the receiving box 101, the folding frame 104 is rotatably installed on the receiving box 101, the lifting frame 105 is slidably installed on the folding frame 104, the adjusting main frame 106 is slidably installed on the lifting frame 105, the projection instrument 107 is connected to the adjusting main frame 106 through the connecting and adjusting component, the self-adjusting component is connected to the receiving box 101 to complete the driving of the corresponding structure, and the connecting and adjusting component is connected to the adjusting main frame 106 to adjust the actual projection range of the projection instrument 107.

[0033] Specifically, the receiving box 101 slides via four casters 102 at its bottom. A push handle 103 is also fixedly installed on the back of the receiving box 101. The push handle 103 allows the operator to push the entire device for quick transfer more easily. All four casters 102 are equipped with corresponding brake clips to ensure the stability of the receiving box 101 in its placement state.

[0034] The storage box 101 has a receiving slot in the middle for folding and storing the folding frame 104. The folding frame 104 can be rotated to fold and store the projector 107. At the same time, a corresponding "7"-shaped outer frame is provided on the outside of the folding frame 104. When the folding frame 104 is folded and retracted, it can cooperate with the receiving slot in the middle of the storage box 101 to shield and protect the projector 107, so that the projector 107 can be better sealed and stored when not in use.

[0035] In actual operation, the operator first moves the entire equipment to the corresponding position by pushing the receiving box 101, and then rotates the projector 107 out by rotating the folding frame 104. After that, the projection height of the projector 107 can be adjusted according to the actual situation by moving the lifting frame 105 on the folding frame 104 and the adjusting main frame 106 on the lifting frame 105. When adjusting the height, the projection angle and horizontal projection position of the projector 107 can also be appropriately adjusted according to the actual usage by using the connecting adjustment components. This allows the projector 107 to be quickly and flexibly adjusted according to different usage requirements. It realizes that the projection position and projection height of the corresponding projection equipment can be quickly and flexibly adjusted according to different usage conditions by using the provided components, making it more convenient in actual use.

[0036] Furthermore, the lifting screw 401 is threadedly connected to the lifting frame 105 and rotatably mounted on the folding frame 104; the output shaft of the lifting motor 402 is connected to the lifting screw 401, the lifting motor 402 is electrically connected to the electrical control module 202, and is fixedly mounted on one side of the folding frame 104; the adjusting screw 403 is threadedly connected to the adjusting main frame 106 and rotatably mounted on the lifting frame 105; the output shaft of the adjusting motor 404 is connected to the adjusting screw 403, the adjusting motor 404 is electrically connected to the electrical control module 202, and is fixedly mounted on one side of the lifting frame 105.

[0037] In this embodiment, the electrical control module 202 is equipped with a corresponding control system, and the electrical control module 202 is also equipped with a wireless control system, so that the operator can wirelessly control the corresponding electrical components. Since all electrical components of the entire device, namely the motor, are controlled through the electrical control module 202, the description of the corresponding electrical components will not be repeated later.

[0038] The folding motor 201 is located on the side of the receiving box 101. The folding motor 201 enables the corresponding rotation of the folding frame 104. The lifting screw 401 and the adjusting screw 403 are respectively connected to the lifting frame 105 and the adjusting main frame 106, so as to drive the corresponding frame to move by rotating the corresponding screw. The lifting screw 401 and the adjusting screw 403 are driven by the lifting motor 402 and the adjusting motor 404, respectively. The folding motor 201, the lifting motor 402 and the adjusting motor 404 are all controlled by the electronic control module 202, so as to realize the automatic adjustment of the folding frame 104, the lifting frame 105 and the adjusting main frame 106, making the entire adjustment more convenient and more controllable.

[0039] Furthermore, the transverse sliding member 301 is slidably mounted on the main adjustment frame 106; the side adjustment frame 302 is slidably mounted on the transverse sliding member 301; the rotation frame 303 is rotatably mounted on the side adjustment frame 302, and the projection instrument 107 is rotatably mounted on the rotation frame 303; the main control component is connected to the side adjustment frame 302 to drive the corresponding frame; the transverse drive component is connected to the main adjustment frame 106 to drive the transverse sliding member 301 to move.

[0040] In this embodiment, the transverse sliding member 301 is adapted to the transverse sliding groove provided on the side of the adjustment main frame 106. The top of the transverse sliding groove is provided with an "S" top groove. The top of the transverse sliding member 301 is provided with a corresponding guide structure that matches the "S" top groove of the transverse sliding groove, so that the transverse sliding member 301 as a whole can slide on the side of the adjustment main frame 106. By adopting the above structure, the movement and adjustment of the transverse sliding member 301 and the adjustment main frame 106 can ensure a larger adjustment range as much as possible while ensuring normal storage.

[0041] The side adjustment frame 302 is slidably disposed on the side of the transverse component 301, and the rotation frame 303 is rotatably mounted on the bottom of the side adjustment frame 302. The projection instrument 107 is rotatably mounted on the rotation frame 303. The operator can adjust the lateral position of the projection of the projection instrument 107 by moving the transverse component 301 on the main adjustment frame 106 and the side adjustment frame 302 on the transverse component 301. At the same time, the projection angle of the projection instrument 107 can be adjusted by rotating the rotation frame 303 on the side adjustment frame 302 and rotating the projection instrument 107 on the rotation frame 303, making the entire adjustment range more flexible.

[0042] Furthermore, the side drive screw 501 is threadedly connected to the side adjustment frame 302 and rotatably mounted on the transverse member 301; the transmission mechanism 502 is connected to the side drive screw 501 and mounted on the transverse member 301; the output shaft of the transmission motor 503 is connected to the transmission mechanism 502 and drives the side drive screw 501 to rotate through the transmission mechanism 502; the transmission motor 503 is electrically connected to the electronic control module 202 and is fixedly mounted on the transverse member 301.

[0043] Furthermore, the rotating frame driving mechanism 504 is connected to the indexing frame 303 and installed on the side adjustment frame 302; the output shaft of the rotating motor 505 is connected to the rotating frame driving mechanism 504 and drives the indexing frame 303 to rotate through the rotating frame driving mechanism 504; the rotating motor 505 is electrically connected to the electronic control module 202 and is fixedly installed on the side adjustment frame 302; the output shaft of the flipping motor 506 is connected to the projection instrument 107; the flipping motor 506 is electrically connected to the electronic control module 202 and is fixedly installed on the indexing frame 303.

[0044] In this embodiment, the side adjustment frame 302 is driven by the side drive screw 501, which in turn is driven by the transmission mechanism 502 and the transmission motor 503. The transmission mechanism 502 is mainly composed of corresponding gears and gear chains, etc. The installation position of the transmission motor 503 can be adjusted appropriately through the transmission mechanism 502, thereby making the overall structure of the entire device more compact.

[0045] The rotating frame 303 is driven by the rotating frame drive mechanism 504 and the rotating motor 505. The rotating frame drive mechanism 504 is mainly composed of corresponding gear sets. The rotating motor 505 drives the gear sets inside the rotating frame drive mechanism 504 to work, thereby realizing the corresponding drive of the rotating frame 303. The projection instrument 107 is directly driven by the flipping motor 506.

[0046] Furthermore, the lateral shifting frame 601 is slidably mounted on the main adjustment frame 106; the drive screw 602 is threadedly connected to the lateral shifting frame 601 and rotatably mounted on the main adjustment frame 106; the drive mechanism 603 is connected to the drive screw 602 and mounted on the main adjustment frame 106; the output shaft of the drive motor 604 is connected to the drive mechanism 603 and drives the drive screw 602 to rotate through the drive mechanism 603; the drive motor 604 is electrically connected to the electronic control module 202 and is fixedly mounted on the main adjustment frame 106.

[0047] Furthermore, the lower clamp 605 is slidably mounted on the drive transverse frame 601; the side toothed belt 606 is fixedly mounted on one side of the lower clamp 605; the adapter gear 607 meshes with the side toothed belt 606 and is rotatably mounted on one side of the drive transverse frame 601; the output shaft of the drive motor 608 is connected to the adapter gear 607, the drive motor 608 is electrically connected to the electronic control module 202, and is fixedly mounted on the drive transverse frame 601.

[0048] In this embodiment, to ensure the adjustment range of the transverse component 301, corresponding locking slots are provided on the top of both sides of the transverse component 301. The driving transverse frame 601 can be selected to cooperate with one of the two locking slots of the transverse component 301 through the lower locking piece 605 provided on the top. Then, the sliding of the driving transverse frame 601 on the adjustment main frame 106 drives the transverse component 301 to slide in the specified direction. When the transverse component 301 needs to slide to the left, the lower locking piece 605 on the driving transverse frame 601 will cooperate with the locking slot on the right side of the transverse component 301, and vice versa. In this way, the movement range of the transverse component 301 on both sides can be greatly expanded.

[0049] The lower clamp 605 is driven by the side-mounted toothed belt 606 and the adapter gear 607. The adapter gear 607 is driven by the drive motor 608. The transverse frame 601 is driven by the drive screw 602. The drive screw 602 is driven by the belt rotation mechanism 603 and the drive motor 604. The belt rotation mechanism 603 and the frame drive mechanism 504 have the same structure, both using corresponding gear sets for power transmission. Thus, the drive motor 604 and the belt rotation mechanism 603 drive the drive screw 602 to rotate, and the rotation of the drive screw 602 drives the transverse frame 601 accordingly. Since the transverse component 301 is driven by alternating insertion and engagement, there will be a certain amount of friction between the transverse component 301 and the main frame 106 to ensure that the transverse component 301 can maintain a certain degree of relative stillness with the main frame 106 when there is no engagement.

[0050] Preferably, the main component provided by the present invention further includes a side-rotating bracket 701, a loudspeaker mechanism 702, a side-rotating worm gear 703, and a synchronous adjustment component, wherein the synchronous adjustment component includes a cooperating worm 801, a synchronous rotating shaft 802, a linkage mechanism 803, and a linkage motor 804.

[0051] Furthermore, the two side-rotating brackets 701 are rotatably mounted on both sides of the receiving box 101; the two amplification mechanisms 702 are respectively mounted on the two side-rotating brackets 701; a side-rotating worm gear 703 is fixedly mounted on one side of each side-rotating bracket 701; the synchronous adjustment component is connected to the receiving box 101 and is used to drive the two side-rotating worm gears 703 to rotate synchronously in opposite directions.

[0052] Furthermore, the two worm gears 801 with opposite thread directions respectively engage with the two side-rotating worm wheels 703, and both worm gears 801 are rotatably installed inside the receiving box 101; the synchronous shaft 802 is fixedly connected to the two worm gears 801 on both sides respectively, and the synchronous shaft 802 is rotatably installed inside the receiving box 101; the linkage mechanism 803 is connected to the synchronous shaft 802; the output shaft of the linkage motor 804 is connected to the linkage mechanism 803, the linkage motor 804 is electrically connected to the electronic control module 202, and is fixedly installed on the receiving box 101.

[0053] In this embodiment, the side-rotating brackets 701 are rotatably mounted on both sides of the receiving box 101. The amplification mechanism 702 is mounted on both side-rotating brackets 701. The amplification mechanism 702 on both sides facilitates better presentations by the presenter. At the same time, the side-rotating brackets 701 on both sides can be driven to rotate according to different usage conditions. Then, the amplification range of the amplification mechanism 702 on both sides can be adjusted by rotating the side-rotating brackets 701.

[0054] The two side-rotating brackets 701 are driven by the side-rotating worm gears 703 and the mating worm gears 801. The threads of the two mating worm gears 801 are opposite, so the two side-rotating brackets 701 rotate in opposite directions. Both mating worm gears 801 are driven by the synchronous rotating shaft 802, which is driven by the linkage mechanism 803 and the linkage motor 804. The linkage mechanism 803 is mainly composed of corresponding gears and gear chains. The linkage mechanism 803 completes the corresponding power transmission and finally realizes the corresponding drive of the synchronous rotating shaft 802.

[0055] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A foldable portable holographic projection teaching demonstration device, comprising a carrying case, casters, and a push handle, wherein four casters are mounted on the bottom of the carrying case, and the push handle is fixedly mounted on one side of the carrying case, characterized in that, It also includes the main components; The main components include a folding frame, a lifting frame, an adjustment main frame, a projector, a self-adjusting component, and a connecting and adjusting component. The folding frame is rotatably mounted on the receiving box, the lifting frame is slidably mounted on the folding frame, and the adjustment main frame is slidably mounted on the lifting frame. The projector is connected to the adjustment main frame via the connecting and adjusting component. The self-adjusting component is connected to the receiving box to drive the corresponding structure. The connecting and adjusting component is connected to the adjustment main frame to adjust the actual projection range of the projector.

2. The foldable portable holographic projection teaching demonstration device as described in claim 1, characterized in that, The self-adjusting component includes a folding motor, an electrical control module, and a displacement adjustment component. The output shaft of the folding motor is connected to the folding frame, and the folding motor is fixedly installed on the receiving box. The electrical control module is installed on the receiving box and electrically connected to the folding motor for controlling the corresponding electrical components. The displacement adjustment component is connected to the lifting frame for driving the corresponding frame.

3. The foldable portable holographic projection teaching demonstration device as described in claim 1, characterized in that, The connecting and adjusting components include a transverse sliding component, a side adjusting frame, a rotation frame, a main control component, and a lateral drive component. The transverse sliding component is slidably mounted on the main adjusting frame; the side adjusting frame is slidably mounted on the transverse sliding component; the rotation frame is rotatably mounted on the side adjusting frame, and the projection instrument is rotatably mounted on the rotation frame; the main control component is connected to the side adjusting frame and is used to drive the corresponding frame; the lateral drive component is connected to the main adjusting frame and is used to drive the transverse sliding component to move.

4. The foldable portable holographic projection teaching demonstration device as described in claim 2, characterized in that, The displacement adjustment component includes a lifting screw, a lifting motor, an adjusting screw, and an adjusting motor. The lifting screw is threadedly connected to the lifting frame and rotatably mounted on the folding frame. The output shaft of the lifting motor is connected to the lifting screw, and the lifting motor is electrically connected to the electrical control module and fixedly mounted on one side of the folding frame. The adjusting screw is threadedly connected to the adjusting main frame and rotatably mounted on the lifting frame. The output shaft of the adjusting motor is connected to the adjusting screw, and the adjusting motor is electrically connected to the electrical control module and fixedly mounted on one side of the lifting frame.

5. The foldable portable holographic projection teaching demonstration device as described in claim 3, characterized in that, The main control component includes a side drive screw, a transmission mechanism, and a transmission motor. The side drive screw is threadedly connected to the side adjustment frame and rotatably mounted on the transverse moving member. The transmission mechanism is connected to the side drive screw and mounted on the transverse moving member. The output shaft of the transmission motor is connected to the transmission mechanism and drives the side drive screw to rotate through the transmission mechanism. The transmission motor is electrically connected to the electronic control module and is fixedly mounted on the transverse moving member.

6. The foldable portable holographic projection teaching demonstration device as described in claim 3, characterized in that, The lateral drive component includes a lateral movement frame, a lead screw, a rotating mechanism, and a drive motor. The lateral movement frame is slidably mounted on the main adjustment frame. The lead screw is threadedly connected to the lateral movement frame and rotatably mounted on the main adjustment frame. The rotating mechanism is connected to the lead screw and mounted on the main adjustment frame. The output shaft of the drive motor is connected to the rotating mechanism and drives the lead screw to rotate through the rotating mechanism. The drive motor is electrically connected to the electronic control module and is fixedly mounted on the main adjustment frame.

7. The foldable portable holographic projection teaching demonstration device as described in claim 5, characterized in that, The main control component also includes a rotating frame drive mechanism, a rotary motor, and a tilting motor. The rotating frame drive mechanism is connected to the indexing frame and is mounted on the side adjustment frame. The output shaft of the rotary motor is connected to the rotating frame drive mechanism and drives the indexing frame to rotate through the rotating frame drive mechanism. The rotary motor is electrically connected to the electronic control module and is fixedly mounted on the side adjustment frame. The output shaft of the tilting motor is connected to the projection instrument. The tilting motor is electrically connected to the electronic control module and is fixedly mounted on the indexing frame.

8. The foldable portable holographic projection teaching demonstration device as described in claim 6, characterized in that, The lateral drive component further includes a lower clamp, a side toothed belt, an adapter gear, and a drive motor. The lower clamp is slidably mounted on the lateral movement frame. The side toothed belt is fixedly mounted on one side of the lower clamp. The adapter gear meshes with the side toothed belt and is rotatably mounted on one side of the lateral movement frame. The output shaft of the drive motor is connected to the adapter gear. The drive motor is electrically connected to the electronic control module and is fixedly mounted on the lateral movement frame.

9. The foldable portable holographic projection teaching demonstration device as described in claim 1, characterized in that, The main component also includes a side-rotating bracket, a loudspeaker mechanism, a side-rotating worm gear, and a synchronous adjustment component. The two side-rotating brackets are rotatably mounted on both sides of the receiving box; the two loudspeaker mechanisms are mounted on the two side-rotating brackets; a side-rotating worm gear is fixedly mounted on one side of each side-rotating bracket; the synchronous adjustment component is connected to the receiving box and is used to drive the two side-rotating worm gears to rotate synchronously in opposite directions.

10. The foldable portable holographic projection teaching demonstration device as described in claim 9, characterized in that, The synchronous adjustment component includes a worm gear, a synchronous shaft, a linkage mechanism, and a linkage motor. The two worm gears with opposite thread directions respectively engage with the two side-rotating worm wheels, and both worm gears are rotatably installed inside the receiving box. The synchronous shaft is fixedly connected to the two worm gears on both sides, and is rotatably installed inside the receiving box. The linkage mechanism is connected to the synchronous shaft. The output shaft of the linkage motor is connected to the linkage mechanism, and the linkage motor is electrically connected to the electronic control module and fixedly installed on the receiving box.

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