Multifunctional APP development demonstration frame

Abstract

The invention relates to the technical field of APP application, and discloses a multifunctional APP development demonstration frame which comprises a bearing box and a rotating assembly arranged in the bearing box, the rotating assembly comprises a driving motor fixedly connected to the bottom of the inner wall of the bearing box, and the output end of the driving motor is fixedly connected with an output shaft. The outer wall of the top of the output shaft is fixedly connected with a driving gear, the outer wall of the driving gear is meshed with a driven gear, the inner wall of the driven gear is fixedly connected with a first rotating rod, the outer wall of the bottom of the first rotating rod is rotatably connected with the bottom of the inner wall of the bearing box through a bearing, and the top of the first rotating rod is fixedly connected with a circular plate. A limiting groove is formed in the inner wall of the top of the bearing box, a limiting block is slidably connected to the inner wall of the limiting groove, and by arranging the rotating assembly, the demonstration position of the demonstration frame can be adjusted through rotation of the circular plate, so that surrounding viewers can clearly watch the content demonstrated on the demonstration frame.

Description

Technical Field

[0001] The present invention relates to the field of APP application technology, and in particular to a multifunctional APP development demonstration frame. Background Art

[0002] Software development is a systematic project that includes demand capture, demand analysis, design, implementation and testing. Software is generally implemented using a programming language and is usually developed using software development tools. Currently, software development uses demonstration equipment, most of which is displayed on multimedia screens.

[0003] According to a multifunctional APP development demonstration stand proposed in Chinese patent CN220817065U, the device places a display screen on the inner side of a vertical plate and a clamping plate, adjusts the position of the fixing plate so that the vertical plate contacts the side of the display screen, and then rotates the adjusting bolt to drive the slider and the clamping plate to move the clamping plate to contact the front of the display screen, thereby completing the fixation of the display screen, achieving the effect of fixing display screens of various sizes, and the fixing effect is good.

[0004] After the display screen is fixed in the existing APP development demonstration stand, the display screen is used to demonstrate to the viewers. However, the existing APP development demonstration stand cannot conveniently adjust the display angle of the display screen to the viewers, so that the viewers located on the side of the demonstration stand cannot effectively view the demonstration content inside the display screen, which reduces the practical effect of the demonstration stand. For this reason, we propose a multifunctional APP development demonstration stand. Summary of the Invention

[0005] The purpose of the present invention is to provide a multifunctional APP development demonstration stand to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multifunctional APP development demonstration stand, comprising a carrying box and a rotating assembly arranged inside the carrying box, wherein the rotating assembly includes a driving motor fixedly connected to the bottom of the inner wall of the carrying box, the output end of the driving motor is fixedly connected to the output shaft, the top outer wall of the output shaft is fixedly connected to the driving gear, the outer wall of the driving gear is meshed with a driven gear, the inner wall of the driven gear is fixedly connected to a first rotating rod, the bottom outer wall of the first rotating rod is rotatably connected to the bottom of the inner wall of the carrying box through a bearing, the top of the first rotating rod is fixedly connected to a circular plate, the top inner wall of the carrying box is provided with a limiting groove, the inner wall of the limiting groove is slidably connected to a limiting block, and the side wall of the limiting block is fixedly connected to the outer wall of the circular plate. By setting the rotating assembly, it is convenient to rotate through the circular plate, thereby adjusting the demonstration position of the demonstration stand, so that viewers around can clearly view the content demonstrated on the demonstration stand.

[0007] Preferably, an adjusting component is provided on the top of the circular plate, and the adjusting component includes a cylinder fixedly connected to the top of the circular plate, the output end of the cylinder is fixedly connected to a displacement block, the side wall of the displacement block is fixedly connected to a slider, the inner wall of the other end of the slider is slidably connected to a limiting column, and the bottom of the limiting column is fixedly connected to the top of the circular plate, and the top outer wall of the displacement block is fixedly connected to a U-shaped block, the inner wall of the U-shaped block is rotatably connected to a second rotating rod through a bearing, the outer wall of the second rotating rod is fixedly connected to a limiting gear, the side wall of the limiting gear is meshed with a rack, and the bottom of the rack is fixedly connected to the top of the circular plate, and the top side wall of the displacement block is movably connected to a first movable rod through a hinge, the other end of the first movable rod is fixedly connected to a vertical plate, and the bottom of the first movable rod The cam is fixedly provided with a hook at its end, and the hook at its end is fixedly provided with a hook at its back, and the hook at its back is hooked.

[0008] Preferably, the side walls of the vertical plate are provided with a clamping assembly, and the clamping assembly includes a rectangular block fixedly connected to the side walls of the vertical plate, the inner wall of the rectangular block is threadedly connected to a screw, the top outer wall of the screw is fixedly connected to an adjusting block, the bottom of the screw is rotatably connected to an L-shaped pressure block, the inner wall of the L-shaped pressure block is fixedly connected to a rubber block, the outer wall of the rubber block is slidably connected to a display screen, and the side walls of the display screen are slidably connected to the side faces of the vertical plate. By providing the clamping assembly, it is convenient to squeeze the display screen through the L-shaped pressure block and the rubber block, so that the display screen can be fixed during the demonstration, thereby improving the stability during the demonstration.

[0009] Preferably, the bottom of the carrying box is fixedly connected with support legs, and there are four support legs. The four support legs are equal in size and fixedly connected to the four corners of the bottom of the carrying box at equal distances. By setting four support legs, it is easy to achieve stable support for the carrying box.

[0010] Preferably, there are four limit blocks, the four limit blocks are equal in size, and the four limit blocks are distributed on the outer wall of the circular plate in a circular array along the central axis of the circular plate. By setting four limit blocks, it is easy to limit the circular plate and make the circular plate rotate smoothly.

[0011] Preferably, the outer wall of the limiting block is adapted to the inner wall of the limiting groove.

[0012] Preferably, there are two racks, the two racks are equal in size, and the two racks are symmetrically distributed along the center plane of the displacement block.

[0013] The outer wall of one end of the insertion rod is matched with the inner wall of the limiting side plate, and the other end of the insertion rod is fixedly connected to the side wall of the extrusion block.

[0014] The present invention provides a multifunctional APP development demonstration stand. The multifunctional APP development demonstration stand has the following beneficial effects:

[0015] (1) The multifunctional APP development demonstration stand is provided with a rotating component. When the demonstration stand is demonstrating to viewers, in order to facilitate the demonstration to viewers on both sides of the demonstration stand, the rotation angle of the demonstration stand needs to be adjusted. At this time, the operator turns on the driving motor. When the driving motor is started, the output shaft is caused to rotate. When the output shaft rotates, it drives the driving gear to rotate. When the driving gear rotates, it engages with the driven gear, causing the first rotating rod to rotate. After the first rotating rod rotates, it causes the circular plate to rotate. After the circular plate rotates, it slides on the inner wall of the limiting groove through the limiting block, so that the circular plate rotates smoothly, thereby facilitating the demonstration of the demonstration stand to viewers on both sides and improving the demonstration effect of the device.

[0016] (2) The multifunctional APP development demonstration stand is provided with an adjustment component. In order to adjust the demonstration angle of the vertical plate to the viewer, the inclination angle of the vertical plate needs to be adjusted. At this time, the operator presses the extrusion block to compress the spring and move the insertion rod. After the insertion rod is freed from the limit of the limit side plate, the operator pulls the T-block to move along the outer wall of the fixed column. When the T-block moves, the second movable rod is rotated. When the second movable rod rotates, the first movable rod is rotated. When the first movable rod rotates, the vertical plate is rotated, which facilitates the adjustment of the inclination angle of the vertical plate when demonstrating to the viewer. When the inclination angle of the vertical plate is adjusted, the second movable rod is rotated. After the adjustment is completed, the operator releases the squeezing block, and the insertion rod is reset under the reaction of the spring, prompting the insertion rod to be inserted into the inside of the limiting side plate, thereby limiting the positions of the T-block, the second movable rod, the first movable rod and the vertical plate, thereby improving the stability of the vertical plate during the demonstration process. When it is necessary to adjust the demonstration height of the vertical plate, the operator starts the cylinder, prompting the output end of the cylinder to push the displacement block upward. When the displacement block moves upward, the limiting gear is rotated and meshed with the rack, thereby effectively adjusting the demonstration height of the vertical plate. When the displacement block moves, the slider is prompted to slide along the outer wall of the limiting column, thereby improving the stability of the vertical plate during the height adjustment process.

[0017] (3) The multifunctional APP development demonstration stand is provided with a clamping assembly. When the operator needs to fix the display screen on the side wall of the vertical plate so that the display screen can be demonstrated to the viewer, the operator fits the display screen to the vertical plate, and then turns the adjustment block to cause the screw to rotate. During the rotation of the screw, the L-shaped pressure block is caused to move. When the L-shaped pressure block moves, the rubber block is caused to move, so that the side walls of the four rubber blocks squeeze the outer wall of the display screen, thereby fixing the display screen and improving the stability of the display screen during the demonstration. By providing the rubber block, it is easy to prevent the L-shaped pressure block from squeezing the outer wall of the display screen for a long time, causing the outer wall of the display screen to be worn, and the outer wall of the display screen is protected by the rubber block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a partial cross-sectional view of the present invention;

[0020] Figure 3 is a cross-sectional view of the rotating assembly of the present invention;

[0021] Figure 4 Schematic diagram of the structure of the regulating component in the present invention;

[0022] Figure 5 is a side view of the adjustment assembly of the present invention;

[0023] Figure 6 It is a partial structural diagram of the regulating component in the present invention;

[0024] Figure 7 for Figure 6 A partial enlarged view of point A in the middle;

[0025] Figure 8 It is a structural schematic diagram of the clamping assembly in the present invention.

[0026] In the figure: 1. Carrying box; 2. Support leg; 31. Rotating assembly; 311. Driving motor; 312. Output shaft; 313. Driving gear; 314. Driven gear; 315. First rotating rod; 316. Circular plate; 317. Limiting groove; 318. Limiting block; 32. Adjusting assembly; 321. Cylinder; 322. Displacement block; 323. Slider; 324. Limiting column; 325. U-shaped block; 326. Second rotating rod; 327. Limiting gear ; 328. Rack; 329. First movable rod; 3210. Vertical plate; 3211. Second movable rod; 3212. Slide; 3213. T-block; 3214. Fixed column; 3215. Spring; 3216. Extrusion block; 3217. Insert rod; 3218. Limiting side plate; 33. Clamping assembly; 331. Rectangular block; 332. Screw; 333. Adjustment block; 334. L-shaped pressure block; 335. Rubber block; 336. Display screen. DETAILED DESCRIPTION

[0027] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0028] A preferred embodiment of the multifunctional APP development demonstration frame provided by the present invention is as follows: Figures 1 to 8As shown: A multifunctional APP development demonstration stand, including a carrying box 1, and a rotating assembly 31 arranged inside the carrying box 1, the rotating assembly 31 includes a driving motor 311 fixedly connected to the bottom of the inner wall of the carrying box 1, the output end of the driving motor 311 is fixedly connected to the output shaft 312, the top outer wall of the output shaft 312 is fixedly connected to a driving gear 313, the outer wall of the driving gear 313 is meshed with a driven gear 314, the inner wall of the driven gear 314 is fixedly connected to a first rotating rod 315, the bottom outer wall of the first rotating rod 315 is rotatably connected to the bottom of the inner wall of the carrying box 1 through a bearing, the top of the first rotating rod 315 is fixedly connected to a circular plate 316, a limiting groove 317 is provided on the top inner wall of the carrying box 1, the inner wall of the limiting groove 317 is slidably connected to a limiting block 318, and the side wall of the limiting block 318 is in contact with the outer wall of the circular plate 316 The present invention relates to a method for manufacturing a display device for displaying a display device to a user, wherein the display device 300 is fixedly connected to the wall and a rotating assembly 31 is provided. When the demonstration stand is performing a demonstration to the audience, in order to facilitate the demonstration to the audience on both sides of the demonstration stand, the rotation angle of the demonstration stand needs to be adjusted. At this time, the operator turns on the driving motor 311. When the driving motor 311 is started, the output shaft 312 is prompted to rotate. When the output shaft 312 rotates, the driving gear 313 is rotated. After the driving gear 313 rotates, it engages with the driven gear 314, prompting the first rotating rod 315 to rotate. After the first rotating rod 315 rotates, the circular plate 316 is prompted to rotate. After the circular plate 316 rotates, it slides on the inner wall of the limiting groove 317 through the limiting block 318, so that the circular plate 316 rotates smoothly, thereby facilitating the demonstration of the demonstration stand to the audience on both sides and improving the demonstration effect of the device.

[0029] A preferred embodiment of the multifunctional APP development demonstration frame provided by the present invention is as follows: Figures 1 to 8As shown: an adjustment component 32 is provided on the top of the circular plate 316, and the adjustment component 32 includes a cylinder 321 fixedly connected to the top of the circular plate 316, and the output end of the cylinder 321 is fixedly connected to a displacement block 322, and the side wall of the displacement block 322 is fixedly connected to a slider 323, and the inner wall of the other end of the slider 323 is slidably connected to a limiting column 324, and the bottom of the limiting column 324 is fixedly connected to the top of the circular plate 316, and the top outer wall of the displacement block 322 is fixedly connected to a U-shaped block 325, and the inner wall of the U-shaped block 325 is rotatably connected to a second rotating rod 326 through a bearing, and the outer wall of the second rotating rod 326 is fixedly connected to a limiting gear 327, and the side wall of the limiting gear 327 is meshed with a rack 328, and the bottom of the rack 328 is fixedly connected to the top of the circular plate 316. The top side wall of the displacement block 322 is movably connected to the first movable rod 329 through a hinge, the other end of the first movable rod 329 is fixedly connected to the vertical plate 3210, the bottom of the first movable rod 329 is movably connected to the second movable rod 3211 through a hinge, the other end of the second movable rod 3211 is movably connected to the T-block 3213 through a hinge, the side wall of the displacement block 322 is provided with a sliding groove 3212, the inner wall of the sliding groove 3212 is fixedly connected to a fixed column 3214, the outer wall of the fixed column 3214 is slidably connected to the inner wall of one side of the T-block 3213, the inner wall of the other side of the T-block 3213 is fixedly connected to a spring 3215, the other end of the spring 3215 is fixedly connected to an extrusion block 3216, the outer wall of the extrusion block 3216 is fixed to the T-block 321 The inner wall of 3 is slidably connected, and the other side of the extrusion block 3216 is fixedly connected with the insertion rod 3217. The outer wall of the other end of the insertion rod 3217 is fixedly connected to the limited side plate 3218. The side wall of the limited side plate 3218 is fixedly connected to the side wall of the displacement block 322. By setting the adjustment component 32, in order to facilitate the adjustment of the presentation angle of the vertical plate 3210 to the viewer, it is necessary to adjust the inclination angle of the vertical plate 3210. At this time, the operator presses the extrusion block 3216 to cause the extrusion block 3216 to compress the spring 3215 and cause the insertion rod 3217 to move. After the insertion rod 3217 is disengaged from the limit of the limited side plate 3218, the operator pulls the T-block 3213 to cause the T-block 3213 to move along the outer wall of the fixed column 3214 When the T-shaped block 3213 moves, the second movable rod 3211 is prompted to rotate, and when the second movable rod 3211 rotates, the first movable rod 329 is prompted to rotate, and when the first movable rod 329 rotates, the vertical plate 3210 is prompted to rotate, so as to adjust the inclination angle of the vertical plate 3210 when demonstrating to the viewer. When the inclination angle of the vertical plate 3210 is adjusted, the operator releases the squeezing block 3216, and the spring 3215 resets the insertion rod 3217 under the reaction of the spring 3215, prompting the insertion rod 3217 to be inserted into the interior of the limiting side plate 3218, thereby limiting the positions of the T-shaped block 3213, the second movable rod 3211, the first movable rod 329 and the vertical plate 3210.This improves the stability of the riser 3210 during demonstrations. When the demonstration height of the riser 3210 needs to be adjusted, the operator activates the cylinder 321, causing the output end of the cylinder 321 to push the displacement block 322 upward. As the displacement block 322 moves upward, it causes the limit gear 327 to rotate and engage with the rack 328, effectively adjusting the demonstration height of the riser 3210. As the displacement block 322 moves, it causes the slider 323 to slide along the outer wall of the limit column 324, thereby improving the stability of the riser 3210 during height adjustment.

[0030] A preferred embodiment of the multifunctional APP development demonstration frame provided by the present invention is as follows: Figures 1 to 8 As shown: the side wall of the vertical plate 3210 is provided with a clamping assembly 33, the clamping assembly 33 includes a rectangular block 331 fixedly connected to the side wall of the vertical plate 3210, the inner wall of the rectangular block 331 is threadedly connected to a screw 332, the top outer wall of the screw 332 is fixedly connected to an adjustment block 333, the bottom of the screw 332 is rotatably connected to an L-shaped pressing block 334, the inner wall of the L-shaped pressing block 334 is fixedly connected to a rubber block 335, the outer wall of the rubber block 335 is slidably connected to a display screen 336, and the side wall of the display screen 336 is slidably connected to the side of the vertical plate 3210. By setting the clamping assembly 33, when the operator needs to fix the display screen 336 to the side wall of the vertical plate 3210 so that the display screen 336 can demonstrate to the viewer, the operator can do so by The display screen 336 is fitted onto the vertical plate 3210, and then the adjusting block 333 is turned to cause the screw 332 to rotate. During the rotation of the screw 332, the L-shaped pressure block 334 is caused to move. When the L-shaped pressure block 334 moves, the rubber block 335 is caused to move, so that the side walls of the four rubber blocks 335 squeeze the outer wall of the display screen 336, thereby fixing the display screen 336 and improving the stability of the display screen 336 during the demonstration. By providing the rubber block 335, it is easy to prevent the L-shaped pressure block 334 from squeezing the outer wall of the display screen 336 for a long time, causing the outer wall of the display screen 336 to be worn, and the rubber block 335 protects the outer wall of the display screen 336.

[0031] Furthermore, the bottom of the carrying box 1 is fixedly connected with a support leg 2. There are four support legs 2, and the four support legs 2 are equal in size. The four support legs 2 are fixedly connected to the four corners of the bottom of the carrying box 1 at equal distances. By setting four support legs 2, it is convenient to achieve a stable support effect on the carrying box 1.

[0032] Furthermore, there are four limit blocks 318, and the four limit blocks 318 are equal in size. The four limit blocks 318 are distributed in a circular array along the central axis of the circular plate 316 on the outer wall of the circular plate 316. By setting four limit blocks 318, it is easy to limit the circular plate 316 and make the circular plate 316 rotate smoothly.

[0033] Furthermore, the outer wall of the limiting block 318 is adapted to the inner wall of the limiting groove 317 .

[0034] Furthermore, there are two racks 328 , the two racks 328 are equal in size, and the two racks 328 are symmetrically distributed along the center plane of the displacement block 322 .

[0035] In addition, the outer wall of one end of the insertion rod 3217 is adapted to the inner wall of the limiting side plate 3218 , and the other end of the insertion rod 3217 is fixedly connected to the side wall of the extrusion block 3216 .

[0036] Working principle: When the demonstration stand is demonstrating to the audience, in order to facilitate the demonstration to the audience on both sides of the demonstration stand, the rotation angle of the demonstration stand needs to be adjusted. At this time, the operator turns on the drive motor 311. When the drive motor 311 is started, it will cause the output shaft 312 to rotate. When the output shaft 312 rotates, it will drive the driving gear 313 to rotate. After the driving gear 313 rotates, it will engage with the driven gear 314, causing the first rotating rod 315 to rotate. After the first rotating rod 315 rotates, it will cause the circular plate 316 to rotate. After the circular plate 316 rotates, it will slide on the inner wall of the limiting groove 317 through the limiting block 318, so that the circular plate 316 rotates smoothly, thereby facilitating the demonstration of the demonstration stand to the audience on both sides, thereby improving the demonstration effect of the device.

[0037] When the lifting lever 3200 is lifted up, the lifting lever 3200 is lifted up and the lifting lever 3200 is in a state of being rotated. When the lifting lever 3200 is lifted up, the lifting lever 3200 is in a state of being rotated. When the lifting lever 3200 is lifted up, the lifting lever 3200 is in a state of being rotated. When the lifting lever 3200 is lifted up, the lifting lever 3200 is in a state of being rotated. The pressing block 3216 will reset the insertion rod 3217 under the reaction of the spring 3215, prompting the insertion rod 3217 to be inserted into the inner part of the limiting side plate 3218, thereby limiting the position of the T-block 3213, the second movable rod 3211, the first movable rod 329 and the vertical plate 3210, thereby improving the stability of the vertical plate 3210 during the demonstration. When it is necessary to adjust the demonstration height of the vertical plate 3210, the operator activates the cylinder 321 to prompt the output end of the cylinder 321 to push the displacement block 322 upward. When the displacement block 322 moves upward, the limiting gear 327 rotates and engages with the rack 328, thereby effectively adjusting the demonstration height of the vertical plate 3210. When the displacement block 322 moves, the slider 323 slides along the outer wall of the limiting column 324, thereby improving the stability of the vertical plate 3210 during the height adjustment process.

[0038] When the operator needs to fix the display screen 336 to the side wall of the vertical plate 3210 so that the display screen 336 can be demonstrated to the viewer, the operator fits the display screen 336 with the vertical plate 3210, and then turns the adjustment block 333 to cause the screw 332 to rotate. During the rotation of the screw 332, the L-shaped pressure block 334 is caused to move. When the L-shaped pressure block 334 moves, the rubber block 335 is caused to move, so that the side walls of the four rubber blocks 335 squeeze the outer wall of the display screen 336, thereby fixing the display screen 336 and improving the stability of the display screen 336 during the demonstration. By providing the rubber block 335, it is easy to prevent the L-shaped pressure block 334 from squeezing the outer wall of the display screen 336 for a long time, causing the outer wall of the display screen 336 to be worn, and the rubber block 335 protects the outer wall of the display screen 336.

[0039] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention should fall within the scope of protection of the present invention. It should also be noted that the various components of the present invention are not limited to the above-mentioned overall application. The various technical features described in the specification of the present invention can be selected one by one or multiple by multiple combinations according to actual needs. Therefore, the present invention should naturally cover other combinations and specific applications related to this case.

Claims

1. A multifunctional APP development demonstration stand, comprising a carrying box (1), and a rotating assembly (31) arranged inside the carrying box (1), characterized in that: The rotating assembly (31) comprises a driving motor (311) fixedly connected to the bottom of the inner wall of the carrying box (1); the output end of the driving motor (311) is fixedly connected to an output shaft (312); the top outer wall of the output shaft (312) is fixedly connected to a driving gear (313); the outer wall of the driving gear (313) is meshed with a driven gear (314); the inner wall of the driven gear (314) is fixedly connected to a first rotating rod (315); the bottom outer wall of the first rotating rod (315) is rotatably connected to the bottom of the inner wall of the carrying box (1) through a bearing; the top of the first rotating rod (315) is fixedly connected to a circular plate (316); a limiting groove (317) is provided on the top inner wall of the carrying box (1); the inner wall of the limiting groove (317) is slidably connected to a limiting block (318); the side wall of the limiting block (318) is fixedly connected to the outer wall of the circular plate (316).

2. A multifunctional APP development demonstration frame according to claim 1, characterized in that: An adjustment component (32) is provided on the top of the circular plate (316), and the adjustment component (32) comprises a cylinder (321) fixedly connected to the top of the circular plate (316), an output end of the cylinder (321) is fixedly connected to a displacement block (322), a side wall of the displacement block (322) is fixedly connected to a slider (323), the other end inner wall of the slider (323) is slidably connected to a limiting column (324), the bottom of the limiting column (324) is fixedly connected to the top of the circular plate (316), and the displacement block (322) The top outer wall of the displacement block (322) is fixedly connected to a U-shaped block (325); the inner wall of the U-shaped block (325) is rotatably connected to a second rotating rod (326) via a bearing; the outer wall of the second rotating rod (326) is fixedly connected to a limit gear (327); the side wall of the limit gear (327) is meshed with a rack (328); the bottom of the rack (328) is fixedly connected to the top of the circular plate (316); the top side wall of the displacement block (322) is movably connected to a first movable rod (329) via a hinge; the first movable rod (329) is The other end is fixedly connected with a vertical plate (3210), the bottom of the first movable rod (329) is movably connected with a second movable rod (3211) through a hinge, the other end of the second movable rod (3211) is movably connected with a T-block (3213) through a hinge, the side wall of the displacement block (322) is provided with a sliding groove (3212), the inner wall of the sliding groove (3212) is fixedly connected with a fixed column (3214), the outer wall of the fixed column (3214) is slidably connected with the inner wall of one side of the T-block (3213), and the T-block (3213) is movably connected with the second movable rod (3211) through a hinge. A spring (3215) is fixedly connected to the inner wall of the other side of the block (3213), and the other end of the spring (3215) is fixedly connected to an extrusion block (3216). The outer wall of the extrusion block (3216) is slidably connected to the inner wall of the T-block (3213). The other side of the extrusion block (3216) is fixedly connected to an insertion rod (3217), and the outer wall of the other end of the insertion rod (3217) is fixedly connected to a limiting side plate (3218), and the side wall of the limiting side plate (3218) is fixedly connected to the side wall of the displacement block (322).

3. A multifunctional APP development demonstration frame according to claim 2, characterized in that: The side wall of the vertical plate (3210) is provided with a clamping assembly (33), and the clamping assembly (33) includes a rectangular block (331) fixedly connected to the side wall of the vertical plate (3210), the inner wall of the rectangular block (331) is threadedly connected to a screw rod (332), the top outer wall of the screw rod (332) is fixedly connected to an adjustment block (333), the bottom of the screw rod (332) is rotatably connected to an L-shaped pressing block (334), the inner wall of the L-shaped pressing block (334) is fixedly connected to a rubber block (335), the outer wall of the rubber block (335) is slidably connected to a display screen (336), and the side wall of the display screen (336) is slidably connected to the side surface of the vertical plate (3210).

4. A multifunctional APP development demonstration frame according to claim 1, characterized in that: The bottom of the carrying box (1) is fixedly connected with a supporting leg (2), the number of the supporting legs (2) is four, the four supporting legs (2) are equal in size, and the four supporting legs (2) are equidistantly fixedly connected to the four corners of the bottom of the carrying box (1).

5. A multifunctional APP development demonstration frame according to claim 1, characterized in that: There are four limit blocks (318), the four limit blocks (318) are of equal size, and the four limit blocks (318) are distributed on the outer wall of the circular plate (316) in a circular array along the central axis of the circular plate (316).

6. A multifunctional APP development demonstration frame according to claim 1, characterized in that: The outer wall of the limiting block (318) is matched with the inner wall of the limiting groove (317).

7. A multifunctional APP development demonstration frame according to claim 2, characterized in that: There are two racks (328), the two racks (328) are equal in size, and the two racks (328) are symmetrically distributed along the center plane of the displacement block (322).

8. A multifunctional APP development demonstration frame according to claim 2, characterized in that: The outer wall of one end of the insertion rod (3217) is matched with the inner wall of the limiting side plate (3218), and the other end of the insertion rod (3217) is fixedly connected to the side wall of the extrusion block (3216).

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