Portable multimedia teaching and projection all-in-one machine

Abstract

The utility model discloses a portable multimedia teaching projection all-in-one machine, which relates to the technical field of teaching devices, and comprises a projection all-in-one machine main body, the top of the projection all-in-one machine main body is fixedly provided with a mounting plate, the interior of the mounting plate is fixedly provided with a sleeving shaft, one side of the surface of the projection all-in-one machine main body is provided with an adjusting groove, and the other side of the surface of the projection all-in-one machine main body is provided with an adjusting groove. And a projection lens is movably mounted in the adjusting groove. Through mutual cooperation of the clamping plate, the pushing block, the inclined pushing column, the rotating ring, a positioning hole and a limiting bolt, the problem that the teaching and projection all-in-one machine is troublesome to disassemble and assemble, and consequently use of a teaching device is affected is solved, the clamping and limiting functions are achieved, the inclined pushing column is driven by the rotating ring to push the clamping plate to be clamped on the outer side of the hoisting column, and therefore the teaching effect is improved. And a limiting bolt is fixed to the top of the rotating ring in a threaded mode, so that the fixing and limiting functions are achieved, the device can conveniently clamp the connecting mechanism, and the device can be conveniently mounted and dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching devices, in particular to a portable multimedia teaching projector all-in-one machine. Background Art

[0002] The all-in-one projector for teaching is produced by Xue Leqi Enterprise for preschool education. It is one of the many all-in-one teaching machines on the market. It is widely used in various preschool teaching places. When used with Xue Leqi teaching software, it makes traditional complex electronic equipment lightweight and integrated to improve its efficiency. Therefore, a portable multimedia teaching projector is proposed.

[0003] In the existing technical scheme, the publication number: CN210691640U is proposed, which is a projector for teaching, including a mounting plate threadedly fixed on the inner wall of the wall top and a projector body for teaching located below the mounting plate, two screws are rotatably installed on the bottom of the mounting plate, sprockets are fixedly sleeved on the two screws, the two sprockets are transmission-connected with the same chain, the two screws are threadedly sleeved with the same movable plate, a first servo motor is threadedly fixed on one side of the bottom of the mounting plate, and the output shaft of the first servo motor is fixedly connected to one end of one of the two screws, and a rectangular groove is opened at the bottom of the movable plate.

[0004] In order to solve the problem that most of the projectors are directly fixed on the ceiling of the classroom, which makes it inconvenient to accurately adjust the position of the projector for teaching, is not conducive to the layout of different scenes in the kindergarten, easily causes projection deviation, and cannot meet the use requirements, the existing technology adopts a positive start-up of the first servo motor to drive one of the two screws to rotate, and one screw drives the other screw to rotate through two sprockets and chains. The rotation of the two screws can drive the movable plate to move to the right. Similarly, when the first servo motor is reversely started, the movable plate is driven to move to the left, so that the movable plate can drive the projector body for teaching to be adjusted left and right through the connecting box. However, the disassembly and installation of the teaching projector are more troublesome, which affects the use of the teaching device. Utility Model Content

[0005] The purpose of the utility model is to provide a portable multimedia teaching projector to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A portable multimedia teaching projector comprises a projector body, a mounting plate is fixedly mounted on the top of the projector body, a sleeve shaft is fixedly mounted inside the mounting plate, an adjustment groove is opened on one side of the surface of the projector body, a projection lens is movably mounted inside the adjustment groove, and a display screen is fixedly mounted on the other side of the surface of the projector body.

[0008] A clamping plate is movably mounted on the inner wall of the sleeve shaft, and a limiting mechanism is movably mounted on one end of the clamping plate.

[0009] An air pump is fixedly installed on one side of the adjusting tank, one end of the air pump is fixedly connected to a connecting pipe, and the other end of the connecting pipe is provided with an adjusting mechanism.

[0010] A further improvement of the technical solution of the utility model is that the limiting mechanism comprises a pushing block, one end of the pushing block is movably connected to one side of the clamping plate, and the other end of the pushing block is movably connected to an oblique pushing column.

[0011] By adopting the above technical solution, the transmission function is achieved through the cooperation between the pushing block, the clamping plate and the inclined push column.

[0012] A further improvement of the technical solution of the utility model is that a rotating ring is movably installed at the other end of the oblique thrust column, a positioning hole is opened on the top of the rotating ring, and a limiting bolt is installed on the internal thread of the positioning hole.

[0013] By adopting the above technical solution, the function of limiting and fixing is achieved through the cooperation between the rotating ring, the positioning hole and the limiting bolt.

[0014] A further improvement of the technical solution of the utility model is that the adjustment mechanism includes an airbag block, the bottom of which is movably mounted on one side of the inside of the adjustment groove, the other end of one side of the airbag block is fixedly connected to an exhaust pipe, and the other end of the exhaust pipe is fixedly sleeved on the inner side of the adjustment groove.

[0015] By adopting the above technical solution, the function of exhaust fine-tuning is achieved through the cooperation between the airbag block and the exhaust pipe.

[0016] A further improvement of the technical solution of the utility model is that a fixing ring is fixedly installed on the outer side of one end of the exhaust pipe, a telescopic rod is movably installed on the side of the fixing ring, and a sealing cover is fixedly connected to one end of the telescopic rod.

[0017] By adopting the above technical solution, the fixing ring, the telescopic rod and the sealing cover cooperate with each other to achieve the function of telescopically moving the sealing cover to facilitate the exhaust of the airbag block.

[0018] A further improvement of the technical solution of the utility model is that a rubber plate is movably installed at the left end of the inner cavity of the adjustment groove, and the side surface of the rubber plate is arranged on the side surface of the projection lens.

[0019] A further improvement of the technical solution of the utility model is that a movable column is movably installed inside the rubber plate, a pushing plate is fixedly installed at one end of the movable column, and a rubber gasket is fixedly installed on the surface of the pushing plate.

[0020] By adopting the above technical solution, the movable column, the pushing plate and the rubber gasket cooperate with each other to achieve the function of buffering protection.

[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0022] 1. The utility model provides a portable multimedia teaching projector all-in-one. Through the cooperation of a clamping plate, a pushing block, an inclined push column, a rotating ring, a positioning hole and a limiting bolt, the problem that the disassembly and installation of the teaching projector all-in-one is troublesome, thereby affecting the use of the teaching device, is solved, and the function of clamping and limiting is achieved. The rotating ring is used to drive the inclined push column to push the clamping plate to clamp it on the outside of the hanging column, and the limiting bolt is threadedly fixed on the top of the rotating ring to achieve the function of fixing and limiting, which is convenient for the device to clamp the connection mechanism and is conducive to convenient installation and disassembly of the device.

[0023] 2. The utility model provides a portable multimedia teaching projector. The air pump, connecting pipe, air bag block, exhaust pipe, fixing ring, telescopic rod and sealing cover cooperate with each other to solve the problem that the image cannot be accurately projected when the projector is hoisted, so the troublesome problem of re-disassembly and re-positioning is required. The function of fine-tuning is achieved by inflating the air bag block with an air pump to expand and push the lens for fine-tuning, and then the sealing cover is pushed out by the telescopic rod to exhaust the air, so that the lens can be fine-tuned to the right, which is conducive to the convenient use of the device.

[0024] 3. The utility model provides a portable multimedia teaching projector. The rubber plate, movable column, pushing plate and rubber gasket cooperate with each other to solve the problem that the protection of the device is low and the projection lens is easily damaged by collision during fine-tuning and transportation. The function of buffering protection is achieved. The pushing plate is in contact with the lens to push the movable column to extend and retract to consume the force, which makes it convenient for the device to buffer and protect the lens and improve the safety performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the sleeve shaft structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the adjustment slot of the utility model;

[0028] Figure 4 This is a schematic diagram of the exhaust pipe structure of the utility model;

[0029] Figure 5 This is a schematic diagram of the rubber plate structure of the utility model.

[0030] In the figure: 1. main body of the all-in-one projector; 2. mounting plate; 21. clamping plate; 22. pushing block; 23. oblique pushing column; 24. rotating ring; 25. positioning hole; 26. limiting bolt; 3. sleeve shaft; 4. adjusting groove; 41. rubber plate; 411. movable column; 412. pushing plate; 413. rubber gasket; 42. air pump; 43. connecting pipe; 44. air bag block; 45. exhaust pipe; 451. fixing ring; 452. telescopic rod; 453. sealing cover; 5. projection lens; 6. display screen. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the embodiments:

[0032] Example 1

[0033] like Figure 1 , Figure 2 As shown, this embodiment provides a portable multimedia teaching projector, including a projector body 1, a mounting plate 2 is fixedly installed on the top of the projector body 1, a sleeve shaft 3 is fixedly installed inside the mounting plate 2, an adjustment slot 4 is opened on one side of the surface of the projector body 1, a projection lens 5 is movably installed inside the adjustment slot 4, a display screen 6 is fixedly installed on the other side of the surface of the projector body 1, a clamping plate 21 is movably installed on the inner wall of the sleeve shaft 3, a limiting mechanism is movably installed on one end of the clamping plate 21, and the limiting mechanism includes a pushing block 22, one end of the pushing block 22 is movably connected to one side of the clamping plate 21, and the other end of the pushing block 22 is movably connected to the other side of the clamping plate 21. An oblique push column 23 is movably connected, and a rotating ring 24 is movably installed at the other end of the oblique push column 23. A positioning hole 25 is opened at the top of the rotating ring 24, and a limit bolt 26 is installed on the internal thread of the positioning hole 25. When hoisting through the top of the projection all-in-one body 1, the ceiling column is sleeved inside the sleeve shaft 3, and the rotating ring 24 is rotated, so that the rotating ring 24 drives the oblique push column 23 to move, driving the pushing block 22 and the clamping plate 21 to move inward for clamping. The clamping plate 21 clamps the outer side of the ceiling column to achieve the function of clamping and connecting, and the limit bolt 26 is threadedly fixed on the top of the rotating ring 24, which is convenient for easy installation and disassembly of the device and is beneficial to the later disassembly and maintenance of the device.

[0034] Example 2

[0035] like Figure 3, Figure 4 As shown, on the basis of Example 1, this embodiment provides a technical solution: preferably, an air pump 42 is fixedly installed on one side of the inside of the adjustment groove 4, one end of the air pump 42 is fixedly connected to a connecting pipe 43, and the other end of the connecting pipe 43 is provided with an adjustment mechanism, the adjustment mechanism includes an air bag block 44, the bottom of the air bag block 44 is movably installed on one side of the inside of the adjustment groove 4, the other end of one side of the air bag block 44 is fixedly connected to an exhaust pipe 45, the other end of the exhaust pipe 45 is fixedly sleeved on the inner side of the adjustment groove 4, a fixing ring 451 is fixedly installed on the outer side of one end of the exhaust pipe 45, a telescopic rod 452 is movably installed on the side of the fixing ring 451, and the telescopic rod 452 A sealing cover 453 is fixedly connected to one end of the projection all-in-one machine. After the projection all-in-one machine body 1 is installed on the ceiling, the air pump 42 is used to inflate the connecting pipe 43 and the air bag block 44, so that the air bag block 44 expands and pushes the projection lens 5 to move to the left, thereby achieving the function of left adjustment. When adjusting to the right, the telescopic rod 452 is used to telescopically move the sealing cover 453 to one side, and the sealing cover 453 is pulled out from one end of the exhaust pipe 45, so that the air inside the air bag block 44 is discharged from the exhaust pipe 45, and the size of the air bag block 44 becomes smaller. Under the design that the bottom of the adjustment slot 4 is higher on the left and lower on the right, the projection lens 5 gradually moves to the right as the size of the air bag block 44 becomes smaller, so that the device can be fine-tuned conveniently.

[0036] Example 3

[0037] like Figure 5 As shown, on the basis of Example 1, this embodiment provides a technical solution: preferably, a rubber plate 41 is movably installed at the left end of the inner cavity of the adjustment groove 4, and the side of the rubber plate 41 is arranged on the side of the projection lens 5. A movable column 411 is movably installed inside the rubber plate 41, and a pushing plate 412 is fixedly installed at one end of the movable column 411. A rubber gasket 413 is fixedly installed on the surface of the pushing plate 412. When the projection lens 5 is finely adjusted left and right, it is pushed on the rubber plate 41, so that the rubber gasket 413 and the pushing plate 412 are forced to drive the movable column 411 to move telescopically, and the sliding force is used to consume the force. In combination with the flexibility of the rubber gasket 413, the force is further buffered, so that it is convenient to increase the protection function when the projection lens 5 is finely adjusted.

[0038] The following is a detailed description of the working principle of this portable multimedia teaching projector.

[0039] like Figure 1-5As shown, when the projector body 1 is suspended from the top, the ceiling column is sleeved inside the sleeve shaft 3, and the rotating ring 24 is rotated, so that the rotating ring 24 drives the inclined push column 23 to move, driving the pushing block 22 and the clamping plate 21 to move inward for clamping, and the clamping plate 21 clamps the outer side of the ceiling column to achieve the function of clamping and clamping, and the limit bolt 26 is threadedly fixed on the top of the rotating ring 24, which facilitates the convenient installation and disassembly of the device. After the projector body 1 is installed on the ceiling, the air pump 42 is used to inflate the connecting pipe 43 and the air bag block 44, so that the air bag block 44 expands and pushes the projection lens 5 to move to the left to achieve the function of left adjustment. When adjusting to the right, the telescopic rod 45 is used. The sealing cover 453 is pushed and moved to one side by telescopic movement, and the sealing cover 453 is pulled out from one end of the exhaust pipe 45, so that the air inside the airbag block 44 is discharged from the exhaust pipe 45, and the airbag block 44 becomes smaller. Under the design that the bottom of the adjustment slot 4 is higher on the left and lower on the right, the projection lens 5 gradually moves to the right as the airbag block 44 becomes smaller, which is convenient for fine-tuning the device. When the projection lens 5 is fine-tuned left and right, it pushes on the rubber plate 41, so that the rubber gasket 413 and the pushing plate 412 are forced to drive the movable column 411 to telescopic movement, and the sliding force is used to consume the action force, and the flexibility of the rubber gasket 413 is combined to further buffer the action force, which is convenient for the projection lens 5 to increase the protection function when fine-tuning.

[0040] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A portable multimedia teaching projector, comprising a projector body (1), characterized in that: A mounting plate (2) is fixedly mounted on the top of the projector body (1), a sleeve shaft (3) is fixedly mounted inside the mounting plate (2), an adjustment slot (4) is provided on one side of the surface of the projector body (1), a projection lens (5) is movably mounted inside the adjustment slot (4), and a display screen (6) is fixedly mounted on the other side of the surface of the projector body (1); A clamping plate (21) is movably mounted on the inner wall of the sleeve shaft (3), and a limiting mechanism is movably mounted on one end of the clamping plate (21); An air pump (42) is fixedly installed on one side inside the adjustment tank (4), one end of the air pump (42) is fixedly connected to a connecting pipe (43), and the other end of the connecting pipe (43) is provided with an adjustment mechanism.

2. The portable multimedia teaching projector according to claim 1, characterized in that: The limiting mechanism comprises a pushing block (22), one end of which is movably connected to one side of the clamping plate (21), and the other end of which is movably connected to an inclined pushing column (23).

3. The portable multimedia teaching projector according to claim 2, characterized in that: A rotating ring (24) is movably mounted on the other end of the inclined thrust column (23), a positioning hole (25) is provided on the top of the rotating ring (24), and a limiting bolt (26) is installed on the internal thread of the positioning hole (25).

4. The portable multimedia teaching projector according to claim 1, characterized in that: The adjustment mechanism comprises an airbag block (44), the bottom of which is movably mounted on one side of the adjustment groove (4), the other end of one side of the airbag block (44) being fixedly connected to an exhaust pipe (45), the other end of which is fixedly sleeved on the inner side of the adjustment groove (4).

5. The portable multimedia teaching projector according to claim 4, characterized in that: A fixing ring (451) is fixedly mounted on the outer side of one end of the exhaust pipe (45), a telescopic rod (452) is movably mounted on the side of the fixing ring (451), and a sealing cover (453) is fixedly connected to one end of the telescopic rod (452).

6. The portable multimedia teaching projector according to claim 1, characterized in that: A rubber plate (41) is movably mounted on the left end of the inner cavity of the adjustment slot (4), and the side surface of the rubber plate (41) is arranged on the side surface of the projection lens (5).

7. The portable multimedia teaching projector according to claim 6, characterized in that: A movable column (411) is movably mounted inside the rubber plate (41), a pushing plate (412) is fixedly mounted on one end of the movable column (411), and a rubber gasket (413) is fixedly mounted on the surface of the pushing plate (412).

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