CN112802376B - Big data interactive teaching practical training platform convenient for adjusting viewing angle - Google Patents

Abstract

The invention discloses a big data interactive teaching and training platform which is convenient to adjust the viewing angle. A first turntable is fixedly connected to the top outer wall of the slider, a second turntable is rotatably connected to the top outer wall of the first turntable, and a groove is opened on the top outer wall of the first turntable. The second revolving disc can be rotated horizontally, which is convenient to adjust the viewing angle. When the angle adjustment is completed, the spring returns to elasticity, and under the force of elastic recovery, the limit ball is stuck into the opening on the second revolving disc. In the limit groove, the limit is completed. It can be seen from the above design that the present invention completes the X-axis movement to adjust the viewing angle through the first chute and the slider, and completes the horizontal circular rotation through the first turntable and the second turntable. The viewing angle of view embodies the big data interactive teaching and training platform of the present invention which facilitates adjustment of the viewing angle.

Description

A big data interactive teaching and training platform that can easily adjust the viewing angle

technical field

The invention belongs to the technical field of teaching platforms, and in particular relates to a big data interactive teaching and training platform that facilitates adjustment of viewing angles.

Background technique

With the development of network technology, the development of online teaching is getting faster and faster. Individual network users can use mobile phones or other terminal devices to watch teaching videos, but it is not convenient to watch them. It makes the body stiff and inconvenient to operate. In addition, the existing teaching platform cannot be moved, and cannot self-adjust according to the heights of teachers and students in the school, and the use function is not high. Therefore, those skilled in the art are committed to developing a big data interactive teaching and training platform that is comfortable and convenient to use and suitable for teachers and students of all grades.

For example, a big data interactive teaching and training platform disclosed in Chinese patent CN111449417A includes a base, the left and right ends of the top surface of the base are provided with sleeves, the sleeve is hollow inside, and the bottom of the inner wall of the sleeve is A compressed elastic spring is fixedly connected, the other end of the elastic spring is fixedly connected with a connecting rod, the lower end of the connecting rod penetrates into the sleeve, the inner wall of the sleeve is provided with a conductive hole, and the connecting rod is close to the The side of the bottom end is elastically connected with a conductive block, the top of the connecting rod is provided with a mounting plate, the mounting plate is provided with an unlocking assembly, the left and right sides of the top of the mounting plate are fixedly connected with a fixing seat, and the surface of the fixing seat on the left end is A telescopic rod is hinged, so that the installation angle of other terminal equipment such as mobile phones can be adjusted and the practicability is improved. However, there are still the following problems in its use:

1. Since the terminal equipment such as mobile phones can only be rotated and adjusted in the vertical direction, it cannot be adjusted in the horizontal direction, and the use angle is limited.

2. Due to the combination of spring and motor to adjust the lifting of the platform, it is not easy to control the elasticity of the spring to adjust the height to the appropriate height, and then lock the corresponding height, which makes the operation difficult when adjusting the height.

3. Since the terminal equipment is placed on the fixed plate and rotated in the vertical direction, the structure is complex, resulting in high manufacturing cost and increased overall weight.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a big data interactive teaching and training platform that is convenient to adjust the viewing angle, and has the advantages of self-locking of the horizontal and vertical rotation adjustment belts.

In order to achieve the above purpose, the present invention provides the following technical solutions: a big data interactive teaching and training platform that is convenient to adjust the viewing angle, including a main body, the top outer wall of the main body is provided with a first chute, the first chute is The inner wall is slidably connected with a slider, the top outer wall of the slider is fixedly connected with a first turntable, and the top outer wall of the first turntable is rotatably connected with a second turntable. The outer wall of the top is provided with a groove, the bottom of the inner wall of the groove is fixedly connected with a spring, the end of the spring away from the groove is slidably connected to the limiting ball, and the outer wall of the bottom of the second wheel disc is provided with a limiting groove.

Preferably, a low rod is fixedly connected to the top outer wall of the second wheel, the top outer wall of the low rod is provided with a second chute, the inner wall of the second chute is slidably connected with a top rod, and the first The inner wall of the second chute is provided with a rack slot, the outer wall of the top rod is fixedly connected with a second rack, the outer wall of the second rack is slidably connected with the inner wall of the rack slot, and the second chute is close to the teeth The inner wall of the slot is fixedly connected with the first rack.

Preferably, a first limit plate is fixedly connected to the top outer wall of the top rod, a pulley is rotatably connected to one side of the first limit plate, and the pulley is rotatably connected to one side of the outer wall of the first limit plate. There is a second limit plate, the outer walls of the first limit plate and the second limit plate are both provided with a first hexagonal screw hole, and the inner wall of the first hexagonal screw hole is inserted with a connecting rod. The outer wall of one side of the pulley close to the second limiting plate is provided with a second hexagonal screw hole.

Preferably, the bottom outer wall of the main body is fixedly connected with a sliding rod, one end of the sliding rod is fixedly connected with a second clamping block, and the outer wall of the sliding rod is slidably connected with legs.

Preferably, the top outer wall of the support leg is provided with a clamping slot, and the outer wall of the second clamping block is slidably connected with the inner wall of the clamping slot.

Preferably, the outer wall of the limiting ball is slidably connected with the inner wall of the limiting groove, and the outer wall of the limiting ball is slidably connected with the inner wall of the groove.

Preferably, the teeth of the first rack mesh with the teeth of the second rack, a third chute is defined on one outer wall of the second rack, and the inner wall of the third chute is slidably connected with a The first block.

Preferably, a circular screw hole is formed on the outer wall of one side of the pulley close to the first limiting plate, and the outer wall of the connecting rod is clamped with the inner wall of the second hexagonal screw hole.

Preferably, the outer wall of the connecting rod is slidably connected with the inner wall of the circular screw hole, and a screw cover is provided on one side outer wall of the first limiting plate and the second limiting plate.

Preferably, the outer wall of the connecting rod is fixedly connected with the outer wall of the screw cap, and the outer wall of the pulley is fixedly connected with a mounting plate.

Compared with the prior art, the beneficial effects of the present invention are:

1. The second turntable can be rotated horizontally, which is convenient to adjust the viewing angle. When the angle adjustment is completed, the spring returns to elasticity, and the limit ball is stuck on the second turntable under the force of the elastic recovery. In the limit slot opened, the limit is completed. It can be seen from the above design that the present invention completes the X-axis movement to adjust the viewing angle through the first chute and the slider, and completes the horizontal circular rotation through the first turntable and the second turntable. , changing the viewing angle, and embodying the big data interactive teaching and training platform of the present invention which is convenient to adjust the viewing angle.

2. The top design of the first block is slightly larger than the second chute to prevent the first block from sliding down into the second chute, and the first block sliding on the third chute is stuck into the second block. The inner wall of the chute, that is, the locking effect is completed. It can be seen from the above design that the design of the present invention is easy to install and operate. The lifting rod with its own locking and fixing function is used to adjust the terminal height of the teaching and training platform. The height is easy to adjust, and the beneficial effect of adjusting the height with convenient operation is realized.

3. The set pulley is slidably connected with the first limit plate and the second limit plate. When the hexagonal bolt segment on the connecting rod is inside the pulley, the pulley is locked with the first limit plate and the second limit plate. The connection is fixed and does not rotate. The control effect on the rotation of the pulley can be realized by pulling the screw cover outside the second limit plate. It can be seen from the above design that the special structure of the connecting rod and pulley designed by the present invention can be completed by simply pulling. The fixed effect is achieved, and the beneficial effect of the remote terminal placed on the installation board being convenient to adjust the rotation angle in the vertical direction is achieved.

4. By setting the second card block to be inserted into the card slot opened at the top of the outrigger, after adjusting to a suitable height, rotate the outrigger to make the second card block on the slide bar clip into the other card slots. Position, complete the adjustment of the height adjustment of the teaching and training platform, the operation is simple, the structure is simple, and the manufacturing cost is low.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural representation of the low pole of the present invention;

Fig. 3 is the structure schematic diagram of groove place of the present invention;

Fig. 4 is the structural schematic diagram of the limiting groove of the present invention;

Fig. 5 is the structural representation of the low pole of the present invention;

Fig. 6 is the enlarged schematic diagram of the structure at A place of the present invention;

7 is a schematic structural diagram of the second hexagonal screw hole of the present invention;

Fig. 8 is the structure schematic diagram of the circular screw hole of the present invention;

FIG. 9 is a schematic diagram of the structure of the slide bar of the present invention.

In the figure: 1. Main body; 101. The first chute; 2. The slider; 3. The first turntable; 301, the groove; 302, the spring; 303, the limit ball; 4. The second turntable; 401, limit slot; 5, low rod; 501, second chute; 502, rack slot; 503, first rack; 6, ejector rod; 601, second rack; 6011, third chute; 602, the first block; 7, the first limit plate; 701, the first hexagonal screw hole; 702, the connecting rod; 703, the pulley; 7031, the second hexagonal screw hole; 7032, the circular screw hole; 8 , the second limit plate; 801, the screw cover; 9, the installation plate; 10, the sliding rod; 1001, the second block; 11, the legs;

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1:

1-4, the present invention provides a technical solution: a big data interactive teaching and training platform that is convenient to adjust the viewing angle, including a main body 1, the top outer wall of the main body 1 is provided with a first chute 101, the first sliding The inner wall of the slot 101 is slidably connected with the slider 2 , the top outer wall of the slider 2 is fixedly connected with the first turntable 3 , the top outer wall of the first turntable 3 is rotatably connected with the second turntable 4 , and the first runner The top outer wall of the disk 3 is provided with a groove 301, and the bottom of the inner wall of the groove 301 is fixedly connected with a spring 302. One end of the spring 302 away from the groove 301 is slidably connected to the limiting ball 303, and the bottom outer wall of the second wheel disk 4 is provided with a limiting ball 303. In the groove 401 , the outer wall of the limiting ball 303 is slidably connected with the inner wall of the limiting groove 401 , and the outer wall of the limiting ball 303 is slidably connected with the inner wall of the groove 301 .

In this embodiment, by setting the first chute 101 on the main body 1, the slider 2 sliding on the inner wall of the first chute 101, the slider 2 fits with the first chute 101, and the slider 2 presents a convex shape, which is The first chute 101 is not easy to loosen during the clamping process, which increases the stability. The slider 2 slides on the inner wall of the first chute 101, which can drive all the components designed on the slider 2 to move in the X-axis, which increases the X-axis. The mobile adjustment function is convenient to adjust the viewing angle. A first turntable 3 is fixedly connected to the slider 2, and the first turntable 3 and the second turntable 4 are rotatably connected. A spring 302 is arranged inside the groove 301 . When rotating, the second revolving disc 4 squeezes the limiting ball 303 , the limiting ball 303 squeezes the spring 302 , and the limiting ball 303 is squeezed into by the second revolving disc 4 . After reaching the inside of the groove 301, the second turntable 4 can be rotated horizontally and circularly, which is convenient for adjusting the viewing angle. After the angle adjustment is completed, the spring 302 returns to the elasticity, and the limit ball 303 is stuck under the force of the elastic recovery. The limitation is completed in the limit groove 401 opened on the second turntable 4. It can be seen from the above design that the present invention uses the first chute 101 and the slider 2 to complete the X-axis movement to adjust the viewing angle. 3 and the second roulette 4 complete the horizontal circular rotation and change the viewing angle, which embodies the big data interactive teaching and training platform of the present invention which is convenient to adjust the viewing angle.

Embodiment 2:

Referring to FIGS. 1-6 , on the basis of Embodiment 1, the present invention provides a technical solution: a low rod 5 is fixedly connected to the top outer wall of the second revolving wheel 4 , and the top outer wall of the low rod 5 is provided with a third Two chute 501, the inner wall of the second chute 501 is slidably connected with the ejector rod 6, the inner wall of the second chute 501 is provided with a rack slot 502, and the outer wall of the ejector rod 6 is fixedly connected with the second rack 601, the second tooth The outer wall of the rack 601 is slidably connected to the inner wall of the rack slot 502 , the second chute 501 is fixedly connected to the inner wall of the rack slot 502 with the first rack 503 , and the teeth of the first rack 503 are connected to the second rack 601 . The teeth are meshed, and a third chute 6011 is defined on an outer wall of one side of the second rack 601 , and the inner wall of the third chute 6011 is slidably connected with the first clamping block 602 .

In this embodiment, through the low rod 5 designed on the second revolving disc 4, a second chute 501 is opened inside the low rod 5. When installing the teaching and training platform or adjusting the required height, the The second rack 601 provided on the outer wall of the top rod 6 is aligned with the second chute 501 on the low rod 5, and the appropriate height is adjusted by sliding. After the second rack 601 rotates, it is clamped by the second chute 501 into the second chute 501 and connected to the teeth of the first rack 503 , passing through the teeth of the first rack 503 and the teeth of the second rack 601 The meshing of the teeth allows the top rod 6 and the low rod 5 to complete the clamping and fixing, and the fixing effect is stronger than that of the bolts, and the operation is more convenient and simple. When the rack 601 slides down, a third chute 6011 is specially provided on one side of the second rack 601. The first block 602 is slidably connected to the third chute 6011. The bottom of the first block 602 is designed The top of the first block 602 is designed to be slightly larger than the second chute 501 to prevent the first block 602 from slipping into the second chute 501 and sliding on the third chute 6011 The first clamping block 602 is clamped into the inner wall of the second chute 501, that is, the locking effect is completed. It can be seen from the above design that the present invention is designed for easy installation and operation, and the lifting rod with its own locking and fixing function is used to adjust the teaching practice. The terminal height of the training platform is completed, the Z-axis height is easy to adjust, and the beneficial effect of adjusting the height with convenient operation is realized.

Embodiment three:

1-8, on the basis of Embodiment 1 and Embodiment 2, the present invention provides a technical solution: the top outer wall of the ejector rod 6 is fixedly connected with a first limit plate 7, the first limit plate One side outer wall of 7 is rotatably connected with a pulley 703, and the side outer wall of the pulley 703 away from the first limit plate 7 is rotatably connected with a second limit plate 8. The outer walls of the first limit plate 7 and the second limit plate 8 are both A first hexagonal screw hole 701 is opened, the inner wall of the first hexagonal screw hole 701 is inserted with a connecting rod 702, and the outer wall of the pulley 703 close to the second limit plate 8 has a second hexagonal screw hole 7031. 703 is provided with a circular screw hole 7032 on the outer wall of one side close to the first limiting plate 7, the outer wall of the connecting rod 702 is clamped with the inner wall of the second hexagonal screw hole 7031, and the outer wall of the connecting rod 702 is connected with the circular screw hole 7032. The inner walls are slidably connected, one outer wall of the first limit plate 7 and the second limit plate 8 is provided with a screw cover 801, the outer wall of the connecting rod 702 is fixedly connected with the outer wall of the screw cover 801, and the outer wall of the pulley 703 is fixedly connected with a mounting plate 9.

In this embodiment, through the first limiting plate 7 and the second limiting plate 8 fixedly connected to the top of the ejector rod 6, the structures of the first limiting plate 7 and the second limiting plate 8 are the same, and they also have a penetrability. The first hexagonal screw hole 701 is designed to rotate between the first limit plate 7 and the second limit plate 8 is a pulley 703, one side of the pulley 703 is provided with a second hexagonal screw hole 7031 and a circular screw Hole 7032, the shape of the specially designed connecting rod 702 is that the two ends are hexagonal bolts that fit the first hexagonal screw hole 701 and the second hexagonal screw hole 7031, and the middle position of the two hexagonal bolts fits the circular screw hole 7032. The diameter of the circular screw hole 7032 is smaller than the shortest diagonal line of the hexagonal bolt, that is, the first hexagonal screw hole of the connecting rod 702 that penetrates the first limit plate 7 and the second limit plate 8 is used 701 and the second hexagonal screw hole 7031 and the circular screw hole 7032 of the pulley 703, when the cylindrical section on the connecting rod 702 is inside the pulley 703, the pulley 703 and the first limit plate 7 and the second limit plate 8 Sliding connection, when the hexagonal bolt section on the connecting rod 702 is inside the pulley 703, the pulley 703 is clamped with the first limit plate 7 and the second limit plate 8 to be fixed and not rotated. By pulling the second limit plate The screw cover 801 outside 8 can realize the control effect on the rotation of the pulley 703. It can be seen from the above design that the special structure of the connecting rod 702 and the pulley 703 designed by the present invention can complete the fixing effect by simply pulling, and at the same time, it is convenient to place. Beneficial effect of adjusting the vertical rotation angle of the remote terminal on the mounting plate 9 .

Embodiment 4:

1-9, on the basis of Embodiment 1, Embodiment 2 and Embodiment 3, the present invention provides a technical solution: a sliding rod 10 is fixedly connected to the bottom outer wall of the main body 1, and one end of the sliding rod 10 is fixedly connected. The second block 1001 is fixedly connected, the outer wall of the slide bar 10 is slidably connected with the leg 11 , the top outer wall of the leg 11 is provided with a groove 1101 , and the outer wall of the second block 1001 is slidably connected with the inner wall of the groove 1101 .

In this embodiment, in the course of using the teaching and training platform, in order to increase the user's comfort, it is necessary to adjust the ideal height of the training platform for the user. In the existing height adjustment design, the production cost is high and the operation is more complicated , the sliding rod 10 is specially designed at the bottom of the main body 1, and the bottom of the sliding rod 10 is fixed with a second blocking block 1001. After the height is adjusted, the second block 1001 on the slide bar 10 is inserted into other positions of the card slot 1101 by rotating the outrigger 11 to complete the height adjustment of the teaching and training platform. The operation is simple, the structure is simple, and the manufacturing cost is low.

The working principle and use process of the present invention: by setting the first chute 101 on the main body 1, and sliding the slider 2 on the inner wall of the first chute 101, the slider 2 fits with the first chute 101, and the slider 2 presents a convex shape. The shape of the word is that the first chute 101 is not easy to loosen during the clamping process, which increases the stability. The X-axis movement adjustment function is provided, which is convenient for adjusting the viewing angle. A first revolving disc 3 is fixedly connected to the slider 2, and the first revolving disc 3 and the second revolving disc 4 are rotatably connected. The groove 301 on the 3 is provided with a spring 302 inside. When rotating, the second revolving disc 4 squeezes the limiting ball 303, the limiting ball 303 squeezes the spring 302, and the limiting ball 303 is pushed by the second revolving disc. 4 After being squeezed into the interior of the groove 301, the second turntable 4 can be rotated horizontally and circularly, which is convenient for adjusting the viewing angle. The ball 303 is snapped into the limit groove 401 opened on the second revolving disc 4 to complete the limitation. It can be seen from the above design that the present invention completes the X-axis movement and adjusts the viewing angle through the first chute 101 and the slider 2. The first roulette wheel 3 and the second roulette wheel 4 complete the horizontal circular rotation, changing the viewing angle, which embodies the big data interactive teaching and training platform of the present invention which is convenient to adjust the viewing angle; A second chute 501 is provided inside the rod 5 and the low rod 5. When the teaching and training platform is installed or the required height needs to be adjusted, the second rack 601 provided on the outer wall of the top rod 6 can be aligned with the low rod 5. The second chute 501 is plugged in, and the appropriate height is adjusted by sliding. After the appropriate height is found, the second rack 601 located on the outer wall of the ejector rod 6 can be rotated by rotating the ejector rod 6, and then the second chute 501 is snapped into the first rack. The two sliding grooves 501 are connected to the teeth of the first rack 503, and the teeth of the first rack 503 and the teeth of the second rack 601 are engaged to allow the top rod 6 and the lower rod 5 to complete the clamping and fixing , and the fixing effect is stronger than that of the bolts, and the operation is more convenient and simple. A third chute 6011 is provided on the side, and the first block 602 is slidably connected on the third chute 6011. The bottom of the first block 602 is designed to just engage with the second chute 501, and the top of the first block 602 is designed The body size is slightly larger than the second chute 501 to prevent the first block 602 from sliding down into the second chute 501, and the first block 602 sliding on the third chute 6011 is stuck into the inner wall of the second chute 501, that is, To complete the locking effect, it can be seen from the above design that the design of the present invention is easy to install and operate. The lifting rod with its own locking and fixing function is used to adjust the terminal height of the teaching and training platform. The beneficial effect of convenient height adjustment; through the first limit plate 7 fixedly connected to the top of the ejector rod 6 The structure of the first limit plate 7 and the second limit plate 8 is the same as that of the second limit plate 8 , and a first hexagonal screw hole 701 is also opened, which is designed in the first limit plate 7 and the second limit plate 8 . The pulley 703 rotates between the limit plates 8. One side of the pulley 703 is provided with a second hexagonal screw hole 7031 and a circular screw hole 7032. The shape of the specially designed connecting rod 702 is such that both ends fit into the first hexagonal screw hole. For the hexagonal bolts of the hole 701 and the second hexagonal screw hole 7031, the middle position of the two hexagonal bolts is a cylinder that fits the circular screw hole 7032, and the diameter of the circular screw hole 7032 is smaller than the shortest pair of the hexagonal bolts. The angle line, that is, using the first hexagonal screw hole 701 of the connecting rod 702 and the second hexagonal screw hole 7031 and the circular screw hole 7032 of the pulley 703 passing through the first limit plate 7 and the second limit plate 8, when When the cylindrical section on the connecting rod 702 is inside the pulley 703, the pulley 703 is slidably connected with the first limit plate 7 and the second limit plate 8. When the hexagonal bolt section on the connecting rod 702 is inside the pulley 703, The pulley 703 is clamped to the first limit plate 7 and the second limit plate 8 and does not rotate. By pulling the screw cover 801 outside the second limit plate 8, the control effect on the rotation of the pulley 703 can be realized. It can be seen from the above design , the specially constructed connecting rod 702 and pulley 703 designed by the present invention can complete the fixing effect by simply pulling and pulling, and at the same time realize the beneficial effect of adjusting the vertical rotation angle of the remote terminal conveniently placed on the mounting plate 9; teaching practice During the use of the platform, in order to increase the comfort of the user, it is necessary to adjust the ideal height of the training platform for the user. In the existing height adjustment design, the production cost is high and the operation is more complicated. It is specially designed at the bottom of the main body 1. The slide bar 10, the bottom of the slide bar 10 is fixed with a second block 1001, the second block 1001 is cut and inserted into the card slot 1101 opened at the top of the leg 11, and after adjusting to a suitable height, the leg 11 is rotated by rotating , the second clamping block 1001 on the slide bar 10 is clamped into other positions of the clamping slot 1101 to complete the height adjustment of the teaching and training platform, the operation is simple, the structure is simple, and the manufacturing cost is low.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A big data interactive teaching and training platform for easy adjustment of viewing angle, comprising a main body (1), characterized in that: a first chute (101) is provided on the top outer wall of the main body (1), and the first chute (101) is provided. A slider (2) is slidably connected to the inner wall of the chute (101), and a first turntable (3) is fixedly connected to the top outer wall of the slider (2). The top of the first turntable (3) A second turntable (4) is rotatably connected to the outer wall, a groove (301) is formed on the top outer wall of the first turntable (3), and a spring (302) is fixedly connected to the bottom of the inner wall of the groove (301). ), one end of the spring (302) away from the groove (301) is slidably connected to a limiting ball (303), and a limiting groove (401) is provided on the bottom outer wall of the second wheel disc (4); The top outer wall of the second wheel disc (4) is fixedly connected with a low rod (5), and the top outer wall of the low rod (5) is provided with a second chute (501), and the second chute (501) ) is slidably connected with a push rod (6), the inner wall of the second chute (501) is provided with a rack groove (502), and the outer wall of the push rod (6) is fixedly connected with a second rack (601). ), the outer wall of the second rack (601) is slidably connected with the inner wall of the rack slot (502), and the second chute (501) is fixedly connected to the inner wall of the rack slot (502) with a first rack (503); A first limit plate (7) is fixedly connected to the top outer wall of the top rod (6), and a pulley (703) is rotatably connected to one side outer wall of the first limit plate (7). The pulley (703) A second limit plate (8) is rotatably connected to the outer wall of one side away from the first limit plate (7), and the outer walls of the first limit plate (7) and the second limit plate (8) are both provided with a second limit plate (8). A hexagonal screw hole (701), a connecting rod (702) is inserted into the inner wall of the first hexagonal screw hole (701), and the pulley (703) is close to the outer wall of one side of the second limiting plate (8). A second hexagonal screw hole (7031) is opened. 2. A big data interactive teaching and training platform for easy adjustment of viewing angle according to claim 1, characterized in that: a sliding rod (10) is fixedly connected to the bottom outer wall of the main body (1), and the sliding rod One end of (10) is fixedly connected with a second clamping block (1001), and an outer wall of the sliding rod (10) is slidably connected with a leg (11). 3. A big data interactive teaching and training platform for easy adjustment of viewing angle according to claim 2, characterized in that: the top outer wall of the outrigger (11) is provided with a card slot (1101), the second The outer wall of the clamping block (1001) is slidably connected with the inner wall of the clamping slot (1101). 4. The big data interactive teaching and training platform according to claim 1, characterized in that: the outer wall of the limiting ball (303) is slidably connected to the inner wall of the limiting groove (401), The outer wall of the limiting ball (303) is slidably connected with the inner wall of the groove (301). 5. A big data interactive teaching and training platform for convenient adjustment of viewing angle according to claim 2, characterized in that: the teeth of the first rack (503) and the teeth of the second rack (601) A third chute (6011) is formed on one outer wall of the second rack (601), and a first clamping block (602) is slidably connected to the inner wall of the third chute (6011). 6. A big data interactive teaching and training platform for easy adjustment of viewing angle according to claim 3, characterized in that: the outer wall of one side of the pulley (703) close to the first limit plate (7) is provided with a circle A shaped screw hole (7032), the outer wall of the connecting rod (702) is clamped with the inner wall of the second hexagonal screw hole (7031). 7. A big data interactive teaching and training platform for easy adjustment of viewing angle according to claim 6, characterized in that: the outer wall of the connecting rod (702) is slidably connected to the inner wall of the circular screw hole (7032), A screw cover (801) is provided on one side outer wall of the first limiting plate (7) and the second limiting plate (8). 8 . The big data interactive teaching and training platform according to claim 7 , wherein the outer wall of the connecting rod ( 702 ) is fixedly connected with the outer wall of the screw cover ( 801 ). A mounting plate (9) is fixedly connected to the outer wall of the pulley (703).

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