Multi-angle projection interactive teaching all-in-one machine

Abstract

The utility model relates to the field of teaching all-in-one machines, and discloses a multi-angle projection interactive teaching all-in-one machine which comprises a machine body, a touch screen is arranged behind the top end of the machine body, a projector is arranged in front of the middle of the machine body, universal wheels are arranged at the bottom end of the machine body, and adjusting mechanisms are arranged on the left side and the right side of the projector. The adjusting mechanism comprises an adjusting assembly and a locking assembly, the adjusting assembly comprises two positioning discs fixedly connected to the left side and the right side of the projector, and an L-shaped mounting groove is formed in the middle of the machine body. According to the utility model, the projector is rotated by taking the positioning disc as a shaft, multi-angle adjustment is realized, the projector can be quickly positioned at a proper angle in cooperation with the clamping groove, the clamping block and the elastic force of the spring, the stability of the projection angle is further guaranteed in cooperation with the locking assembly, and the projection requirements of different classroom environments and teaching scenes are met; every student can clearly watch the teaching content, and the teaching effect is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of interactive teaching machines, and in particular to a multi-angle projection interactive teaching machine. Background Technology

[0002] Currently, common teaching equipment in the field of education mainly includes blackboards, projectors, and ordinary electronic whiteboards. Although blackboards, as traditional teaching tools, are convenient to use and low in cost, they have drawbacks such as limited writing content and difficulty in displaying complex dynamic information. In addition, dust can also be harmful to the health of teachers and students. The emergence of projectors can project images, videos, and other information onto the screen, enriching the presentation of teaching content. As an important tool for information technology teaching, it has been widely used in various teaching venues.

[0003] However, traditional projectors generally rely on external brackets for installation and support, and often can only project in one direction, making it difficult to achieve multi-angle adjustment. As a result, in different classroom environments and teaching scenarios, some students cannot clearly see the teaching content due to poor projection angles, which seriously affects the teaching effect. To address this issue, a multi-angle projection interactive teaching all-in-one machine is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multi-angle projection interactive teaching all-in-one machine, which aims to improve the problem in the prior art that "traditional projectors usually rely on external brackets for installation, the projection direction is fixed, and it is difficult to adjust to multiple angles".

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a multi-angle projection interactive teaching all-in-one machine, including a body, a touch screen is provided at the rear top of the body, a projector is provided at the front middle of the body, casters are provided at the bottom of the body, and adjustment mechanisms are provided on the left and right sides of the projector. The adjustment mechanism includes an adjustment component and a locking component. The adjustment component includes two sets of positioning discs fixedly connected to the left and right sides of the projector. An L-shaped mounting groove is opened in the middle of the body. A rotating rod is fixedly connected to the right side of the positioning disc. A circular groove is opened inside the body near the right side of the positioning disc. Multiple sets of slots are opened on the right side of the positioning disc. A moving ring is slidably connected to the outer wall of the rotating rod near the right side of the positioning disc. Multiple sets of locking blocks are fixedly connected to the left side of the moving ring. The moving ring is elastically connected to the body by a spring. The locking component is located inside the body near the lower right of the projector. The locking component includes a positioning groove opened on the inner wall of the bottom end of the circular groove.

[0006] As a further description of the above technical solution:

[0007] A lifting assembly is provided between the machine body and the universal wheel. The lifting assembly includes a threaded rod II that is threaded to the bottom of the machine body. The bottom end of the threaded rod II is rotatably connected to the top of the universal wheel. An anti-slip turntable is fixedly connected to the outer wall of the threaded rod II at the top surface of the universal wheel.

[0008] As a further description of the above technical solution:

[0009] The front and rear outer walls of the movable ring are fixedly connected to sliders, and the front and rear sides of the machine body near the circular groove are provided with sliding grooves. The two sets of positioning discs are respectively rotatably connected to the inside of the machine body located on the left and right sides of the mounting groove.

[0010] As a further description of the above technical solution:

[0011] The rotating rod passes through the right side of the machine body and is rotatably connected to the machine body. The locking block is engaged with the inner wall of the locking slot. Multiple sets of the locking slots and locking blocks are arranged in a circular array with the center point of the rotating rod as the center.

[0012] As a further description of the above technical solution:

[0013] The slider is horizontally connected to the inner wall of the groove, and the locking block is configured with a top triangular outward protrusion and a bottom triangular inward retraction shape, and the locking block is adapted to the locking groove.

[0014] As a further description of the above technical solution:

[0015] One end of the spring is fixedly connected to the right side of the movable ring, and the other end of the spring is fixedly connected to the inner wall of the right side of the circular groove. The inner wall of the positioning groove is horizontally slidably connected to a limit rod.

[0016] As a further description of the above technical solution:

[0017] The limiting rod is located on the right side of the moving ring, and a guide ring is fixedly connected to the bottom end of the limiting rod.

[0018] As a further description of the above technical solution:

[0019] Inside the body, below the rotating rod, is a threaded rod rotatably connected, and the guide ring is threadedly connected to the threaded part of the left outer wall of the threaded rod.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, rotating the rotating rod can drive the projector to rotate around the positioning plate as an axis, realizing multi-angle adjustment. With the help of the slot, the locking block and the spring force, the projector can be quickly positioned at the appropriate angle. At the same time, the locking component further ensures the stability of the projection angle, meets the projection needs of different classroom environments and teaching scenarios, allows every student to clearly see the teaching content, and effectively improves the teaching effect.

[0022] 2. In this utility model, by setting universal wheels at the bottom of the machine body, the all-in-one machine can be moved between different classrooms, which improves the flexibility of the equipment. When encountering uneven ground, the anti-slip turntable at the bottom of the threaded rod can be rotated to adjust the support height of the universal wheels, so that the machine body can be kept level, preventing the projected image from tilting, improving the projection quality, and ensuring the accuracy of teaching presentations. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a three-dimensional cross-sectional view of the body of the present invention;

[0025] Figure 3 This is a cross-sectional view of the three-dimensional structure of the body of the present invention, as well as a three-dimensional structural schematic diagram of the positioning groove, the limiting rod, and the threaded rod.

[0026] Figure 4 This is a three-dimensional structural breakdown diagram of the moving ring, the card block, and the card slot in this utility model;

[0027] Figure 5 This is a three-dimensional structural disassembly diagram of the universal wheel, threaded rod, and body in this utility model;

[0028] Figure 6 This is a rear view schematic diagram of the three-dimensional structure of the touch screen and the body of this utility model.

[0029] Legend:

[0030] 1. Body; 2. Projector; 3. Limiting rod; 4. Caster wheel; 21. Rotating rod; 22. Mounting slot; 23. Positioning plate; 24. Moving ring; 25. Spring; 26. Slider; 27. Circular groove; 28. Slide groove; 29. ​​Slot; 210. Locking block; 31. Positioning slot; 32. Threaded rod one; 33. Guide ring; 41. Threaded rod two; 42. Anti-slip turntable. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 2 , Figure 4 and Figure 6 This utility model provides an embodiment of a multi-angle projection interactive teaching all-in-one machine, including a body 1, which is the main body of the projection interactive teaching all-in-one machine. The all-in-one machine includes a high-performance processor and various sensors (optical monitoring sensors for light environment, temperature sensors for measuring temperature, air quality sensors, and noise sensors, which monitor the teaching environment status in all directions in real time). The high-performance processor and various sensors are existing technologies and can be implemented by those skilled in the art. Since they are existing technologies, they will not be described in detail in this case. A multi-touch screen is provided at the top rear of the body 1. A projector 2 is provided at the front middle of the body 1, which converts digital signals into light signals and projects them onto surfaces such as screens, floors, and walls through a lens to generate clear images. A caster wheel 4 is provided at the bottom of the body 1. The caster wheel 4 can be limited to facilitate the movement and adjustment of the body 1. Adjustment mechanisms for adjusting the illumination angle of the projector 2 are provided on the left and right sides. The adjustment mechanism includes an adjustment component and a locking component.

[0033] Furthermore, the adjustment assembly includes two sets of positioning discs 23 fixedly connected to the left and right sides of the projector 2. The positioning discs 23 provide support. An L-shaped mounting groove 22 is provided in the middle of the body 1. The mounting groove 22 is used to provide space for adjusting the projector 2. A rotating rod 21 is fixedly connected to the right side of the right positioning disc 23, which drives the positioning disc 23 and the projector 2 to rotate and adjust the angle. A circular groove 27 is provided inside the body 1 near the right side of the positioning disc 23. A moving ring 24 is slidably connected to the inner wall of the circular groove 27. The circular groove 27 provides space for the moving ring 24 to move. A slot 29 is provided on the right side of the positioning disc 23, and multiple sets of slots are provided. A moving ring 24 supporting a locking block 210 is slidably connected to the outer wall of the rotating rod 21 near the right side of the positioning disc 23. A locking block 210 is fixedly connected to the left side of the moving ring 24, and multiple sets of locking blocks 210 are provided. The locking block 210 can be pre-positioned by locking into the slot 29. The moving ring 24 is elastically connected to the body 1 by a spring 25.

[0034] Reference Figure 1 and Figure 5A lifting assembly is provided between the main body 1 and the caster 4 to adjust the flatness of the main body 1 according to the flatness of the ground. The lifting assembly includes a threaded rod 41 threaded to the bottom of the main body 1. The bottom end of the threaded rod 41 is rotatably connected to the top end of the caster 4. An anti-slip turntable 42 is fixedly connected to the outer wall of the threaded rod 41 at the top surface of the caster 4. By rotating the anti-slip turntable 42, the threaded rod 41 is rotated and threaded to the bottom end of the main body 1. The height of the caster 4 supporting the main body 1 can be adjusted, and thus adjusted according to the flatness of the ground to prevent the image projected by the projector 2 from tilting, thereby improving the projection quality of the projector 2.

[0035] Reference Figure 1 and Figure 3 The locking assembly is located inside the body 1 near the lower right of the projector 2. The locking assembly includes a positioning groove 31 formed on the inner wall of the bottom end of the circular groove 27. The positioning groove 31 provides space for the movement of the limiting rod 3. The positioning groove 31 is connected to the circular groove 27. The inner wall of the positioning groove 31 is horizontally slidably connected to the limiting rod 3, which limits the movement ring 24. By moving the limiting rod 3 to the right side of the movement ring 24, the movement ring 24 can be limited to prevent it from moving to the right, thereby increasing the stability of the projector 2 after adjustment. The limiting rod 3 is located on the right side of the movement ring 24. The bottom end of the limiting rod 3 is fixedly connected to the guide ring 33, which drives the limiting rod 3 to move. Inside the body 1, below the rotating rod 21, is a threaded rod 32 that drives the guide ring 33 to move. The guide ring 33 is threadedly connected to the threaded part of the left outer wall of the threaded rod 32. The right sides of the rotating rod 21 and the threaded rod 32 are fixedly connected to anti-slip turntables 42, which can facilitate the rotation of the rotating rod 21 and the threaded rod 32.

[0036] Reference Figure 2 , Figure 3 and Figure 4 The front and rear outer walls of the moving ring 24 are fixedly connected with sliders 26. The sliders 26 stably support the horizontal movement of the moving ring 24 without rotation. The front and rear sides of the body 1 near the circular groove 27 are provided with sliding grooves 28. The sliding grooves 28 provide space for the sliders 26 to move. Two sets of positioning disks 23 are rotatably connected to the inside of the body 1 located on the left and right sides of the mounting groove 22. The rotating rod 21 passes through the right side of the body 1 and is rotatably connected to the body 1. The locking block 210 is locked in the inner wall of the slot 29. Multiple sets of slots 29 and locking blocks 210 are arranged in a circular array with the center point of the rotating rod 21 as the center. Through the circular array, multiple sets of locking blocks 210 can be locked into the corresponding slots 29 to quickly limit the positioning disks 23, thereby positioning the projector 2.

[0037] Furthermore, the slider 26 is horizontally connected to the inner wall of the slide groove 28. The locking block 210 is set with a top triangular outward protrusion and a bottom triangular inward retraction shape. The locking block 210 is adapted to the slot 29. By setting the top triangular outward protrusion and the bottom triangular inward retraction slope shape, it can be locked into the slot 29 to position the positioning disk 23. The locking block 210 and the slot 29 can be locked together by a caliper-like shape to form a limiting clamping force, thereby limiting the projector 2. One end of the spring 25 is fixedly connected to the right side of the moving ring 24, and the other end of the spring 25 is fixedly connected to the right inner wall of the circular groove 27.

[0038] Working principle: When adjusting the illumination angle of the projector 2, first rotate the lever 21, causing the positioning disk 23 to rotate as well. Simultaneously, the entire projector 2 rotates around the positioning disk 23 as an axis. During the rotation of the lever 21, the slot 29 rotates and presses the inclined surface of the block 210, causing the block 210 to move outward. This causes the moving ring 24 to slide within the circular groove 27, pressing the spring 25. Under the elastic force of the spring 25, the block 210 on the left side of the moving ring 24 always maintains a tendency to move closer to the slot 29. When the projector 2 rotates to the appropriate angle, the block 210, through the elastic force of the spring 25, causes the moving ring 24 and the block 210 to reset and lock into the corresponding slot 29 on the right side of the positioning disk 23, achieving rapid positioning and fixing the projector 2 at the target angle.

[0039] After initial positioning is completed, in order to further increase the stability of the projector 2 after adjustment, the threaded rod 32 can be rotated. When the threaded rod 32 rotates, it is threadedly connected to the guide ring 33, which drives the guide ring 33 to move the limiting rod 3 horizontally within the positioning groove 31. When the limiting rod 3 moves to the right side of the moving ring 24, it limits the moving ring 24 and prevents it from moving to the right, thereby keeping the locking block 210 and the locking groove 29 in a tight engagement state, realizing a firm lock on the projector 2, and ensuring that the projection angle will not shift during use.

[0040] The universal wheels 4 at the bottom of the unit 1 facilitate overall movement. When the all-in-one machine needs to be placed in different classrooms or locations, the position can be adjusted by pushing the unit 1. If the ground is uneven, the anti-slip turntable 42 at the bottom of the threaded rod 41 can be rotated. Since the threaded rod 41 is threaded to the bottom of the unit 1, the threaded rod 41 will move up and down relative to the unit 1 when rotated, thereby changing the support height of the universal wheels 4 on the unit 1. By adjusting the height of the universal wheels 4 at different positions, the unit 1 can be kept level, avoiding tilting of the projected image from the projector 2 due to the tilt of the unit 1, thus ensuring projection quality.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-angle projection interactive teaching all-in-one machine, comprising a body (1), a touch screen disposed at the rear top of the body (1), a projector (2) disposed at the front middle of the body (1), and casters (4) disposed at the bottom of the body (1), characterized in that: The projector (2) is provided with adjustment mechanisms on its left and right sides. The adjustment mechanisms include adjustment components and locking components. The adjustment components include two sets of positioning discs (23) fixedly connected to the left and right sides of the projector (2). The body (1) has an L-shaped mounting groove (22) in the middle. A rotating rod (21) is fixedly connected to the right side of the positioning disc (23). A circular groove (27) is provided inside the body (1) near the right side of the positioning disc (23). The right side of the positioning disc (23) has a circular groove (27). The rotating rod (21) has a slot (29) and multiple sets thereof. The outer wall of the rotating rod (21) is slidably connected to the right side of the positioning plate (23). The left side of the rotating rod (24) is fixedly connected to a block (210) and multiple sets thereof. The rotating rod (24) is elastically connected to the body (1) by a spring (25). The locking assembly is located inside the body (1) near the lower right side of the projector (2). The locking assembly includes a positioning groove (31) opened on the inner wall of the bottom end of the circular groove (27).

2. The multi-angle projection interactive teaching all-in-one machine according to claim 1, characterized in that: A lifting assembly is provided between the body (1) and the caster wheel (4). The lifting assembly includes a threaded rod (41) threaded to the bottom of the body (1). The bottom end of the threaded rod (41) is rotatably connected to the top of the caster wheel (4). An anti-slip turntable (42) is fixedly connected to the outer wall of the threaded rod (41) at the top surface of the caster wheel (4).

3. The multi-angle projection interactive teaching all-in-one machine according to claim 1, characterized in that: The front and rear outer walls of the moving ring (24) are fixedly connected with sliders (26), and the front and rear sides of the body (1) near the circular groove (27) are provided with sliding grooves (28). The two sets of positioning discs (23) are respectively rotatably connected to the inside of the body (1) located on the left and right sides of the mounting groove (22).

4. The multi-angle projection interactive teaching all-in-one machine according to claim 1, characterized in that: The rotating rod (21) passes through the right side of the body (1) and is rotatably connected to the body (1). The locking block (210) is locked in the inner wall of the slot (29). Multiple sets of the slots (29) and the locking blocks (210) are arranged in a circular array with the center point of the rotating rod (21) as the center.

5. The multi-angle projection interactive teaching all-in-one machine according to claim 3, characterized in that: The slider (26) is horizontally connected to the inner wall of the groove (28) and the card block (210) is set with a top triangular outward protrusion and a bottom triangular inward retraction shape. The card block (210) is adapted to the card groove (29).

6. The multi-angle projection interactive teaching all-in-one machine according to claim 1, characterized in that: One end of the spring (25) is fixedly connected to the right side of the moving ring (24), and the other end of the spring (25) is fixedly connected to the inner wall of the right side of the circular groove (27). The inner wall of the positioning groove (31) is horizontally connected to the limit rod (3).

7. The multi-angle projection interactive teaching all-in-one machine according to claim 6, characterized in that: The limiting rod (3) is located on the right side of the moving ring (24), and a guide ring (33) is fixedly connected to the bottom end of the limiting rod (3).

8. The multi-angle projection interactive teaching all-in-one machine according to claim 7, characterized in that: The machine body (1) has a threaded rod (32) rotatably connected inside below the rotating rod (21), and the guide ring (33) is threadedly connected to the threaded part of the left outer wall of the threaded rod (32).

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