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Projection equipment for online education

A technology of projection equipment and equipment, applied in mechanical equipment, optics, instruments, etc., can solve problems such as single adjustment

Inactive Publication Date: 2021-11-26
杭州宇和企业服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a projection device for online education, which has the advantages of multi-directional adjustment and solves the problem of single adjustment

Method used

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  • Projection equipment for online education
  • Projection equipment for online education
  • Projection equipment for online education

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see Figure 1-3 , a projection device for online education, comprising a device main body 1, a lifting mechanism 2 is rotatably connected to the bottom of the device main body 1, and the lifting mechanism 2 includes a rotating wheel 201, a fixed block 202, a swinging block 203, a return spring 204, and a stretching bracket 205 , rotating roller 206, swing bracket 207, fan-shaped teeth 208, lifting tooth plate 209, lifting base 210, the inside of the rotating wheel 201 is fixedly equipped with a fixed block 202, and the inside of the rotating wheel 201 is provided with a chute that is flat on the top and round on the bottom, and is close to The two ends of the swing block 203 are respectively provided with baffle plates, the front of the fixed block 202 is rotatably connected with the swing block 203, the back side of the swing block 203 is fixedly connected with a return spring 204, and the periphery of the swing block 203 is slidably connected with a stretching bracket ...

Embodiment 2

[0031] see Figure 4 , a projection device for online education, comprising a device main body 1, a lifting mechanism 2 is rotatably connected to the bottom of the device main body 1, and a buckle mechanism 3 is fixedly installed on the top of the lifting mechanism 2, and the buckle mechanism 3 includes a lifting rod 31, a buckle Bracket 32, groove plate 33, buckle plate 34, fixed column 35, the peripheral rotation of lifting rod 31 is connected with buckle bracket 32, and the end of buckle bracket 32 ​​away from lifting rod 31 is fixedly installed with groove plate 33, groove One end of the plate 33 away from the buckle bracket 32 ​​is clamped with a buckle plate 34, and the front of the buckle plate 34 is provided with six groups of fixing columns 35, and the outer diameter of the fixing columns 35 is smaller than the inner diameter of the groove plate 33, and the buckle plate 34 The front side of the front side is fixedly connected with a fixed column 35, and the top of the...

Embodiment 3

[0033] see Figure 5 , a projection device for online education, comprising a device main body 1, a lifting mechanism 2 is rotatably connected to the bottom of the device main body 1, a buckle mechanism 3 is fixedly installed on the top of the lifting mechanism 2, and a swing mechanism is rotatably connected to the top of the buckle mechanism 3 4. The swinging mechanism 4 includes a fixed wheel 41, a fixed slider 42, a transmission wheel 43, a swinging projection base 44, and a stretch rod 45. The fixed slider 42 is fixedly installed inside the fixed wheel 41, and the inner rotation of the fixed wheel 41 is connected with Transmission wheel 43, the front of transmission wheel 43 is provided with the chute that matches with fixed slide block 42, and the front of transmission wheel 43 is fixedly installed with swing projection base 44, and the periphery of swing projection base 44 is slidably connected with stretch rod 45, pulls The extension rod 45 is provided with a semicircle...

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Abstract

The invention relates to the technical field of online education, and discloses a projection equipment for online education. The projection equipment comprises an equipment main body, the bottom of the equipment main body is rotatably connected to a lifting mechanism, the top of the lifting mechanism is fixedly provided with a buckle mechanism, the top of the buckle mechanism is rotatably connected to a swing mechanism, a fixed block is fixedly installed inside a rotating wheel, the front face of the fixed block is rotationally connected to a swing block, and the back face of the swing block is fixedly connected to a reset spring. A lifting toothed plate drives A lifting base on the front face to move up and down, so that the effect of continuous lifting movement is achieved, a fixing column on a buckle plate is clamped through a groove plate, then the effect of continuous lifting is achieved, a semicircle of the end, close to a swing projection base, of a stretching rod can be tightly attached to the periphery of the swing projection base, rotation of the swing projection base is limited, and then the effect of left-right adjustment is achieved.

Description

technical field [0001] The invention relates to the technical field of online education, in particular to a projection device for online education. Background technique [0002] Projection, a projection optical instrument that provides a large-scale picture, on the basis of a direct slide projector, a reflector is added to change the optical path, so that the image of the projection film placed on the object glass is projected onto the screen. The existing projection In the adjustment process of the device, the adjustable direction is relatively single, and it is difficult to adjust the left and right sides of the projection device while realizing the up and down adjustment, and the adjustment structure is complex, and the adjustment process is cumbersome. [0003] In order to solve the above problems, the inventor provides a projection device for online education. The lifting tooth plate drives the front lifting base to follow the lifting movement, so as to achieve the effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16M11/04F16M11/18F16M11/08G03B21/54
Inventor 贺飞翔
Owner 杭州宇和企业服务有限公司