Multifunctional display device for agricultural technology demonstration

Abstract

The invention relates to the technical field of display equipment, and discloses an agricultural technology demonstration multifunctional display device which comprises a fixed box. The display board is arranged above the fixed box; the protection assembly comprises a bearing plate arranged above the fixed box, a bearing block is fixedly connected to the outer wall of the bearing plate, a supporting column is slidably connected to the bottom of the inner wall of the bearing block, and a limiting column is slidably connected to the inner wall of the side face of the bottom of the supporting column; the outer wall of the limiting column is slidably connected with the inner wall of the side face of the bearing block, the outer wall of the middle of the limiting column is slidably connected with a transverse block, the other end of the limiting column is fixedly connected with a pulling plate, the side wall of the pulling plate is fixedly connected with a spring, and the other end of the spring is fixedly connected with the side wall of the transverse block. Rainwater in rainy days can be blocked and collected, the display board is prevented from being eroded by the rainwater, and the display effect of the display board is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display equipment, in particular to a multifunctional display device for agricultural technology demonstration. BACKGROUND

[0002] The display stand is a display device designed for displaying products according to the characteristics of the products and the creative trademarks, which can display the characteristics of the products in all directions, thereby increasing the advertising effect of the products and making the products prominently displayed in front of the public.

[0003] According to the multifunctional display device for agricultural informatization of Chinese patent CN210516125U, the display height of the display support is controlled through the lifting structure, the display support is controlled to rotate horizontally through the horizontal rotating structure, the display support is changed to rotate up and down in the vertical direction through the vertical rotating structure, and the device is retracted into the device base when fixed through the telescopic moving structure.

[0004] However, there are still some deficiencies in the patent. Although the display support in the device can display agricultural information, when the display support is installed outside for display, it is easy to be eroded by rain and damaged when it rains, which affects the display effect of the display support. Therefore, we propose a multifunctional display device for agricultural technology demonstration. SUMMARY

[0005] The purpose of the present application is to provide a multifunctional display device for agricultural technology demonstration, which solves the problems mentioned in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a multifunctional display device for agricultural technology demonstration, comprising a fixed box; a display board arranged above the fixed box; And the protection assembly for protecting the display board, the bearing plate is arranged above the fixed box, the outer wall of the bearing plate is fixedly connected with the bearing block, the inner wall bottom of the bearing block is slidably connected with the supporting column, the bottom side inner wall of the supporting column is slidably connected with the limiting column, the outer wall of the limiting column is slidably connected with the side inner wall of the bearing block, the middle outer wall of the limiting column is slidably connected with the cross block, the other end of the limiting column is fixedly connected with the pull plate, the side wall of the pull plate is fixedly connected with the spring, the other end of the spring is fixedly connected with the side wall of the cross block, the top of the supporting column is fixedly connected with the baffle, and the top of the baffle is fixedly connected with the collecting frame, the rainwater in rainy weather can be blocked and collected through the collecting frame arranged on the top of the baffle, the rainwater erosion of the display board is avoided, and the display effect of the display board is improved.

[0007] Preferably, the side inner wall of the collecting frame is connected with the drain pipe, the number of the drain pipe is six, the six drain pipes are divided into two groups, and the two groups of drain pipes are symmetrically distributed on the two sides of the collecting frame.

[0008] Preferably, the top of the bearing plate is also provided with an adjusting assembly, the adjusting assembly comprises four fixed columns fixedly connected with the top of the four corners of the bearing plate, the outer wall of the fixed column is slidably connected with the sliding block, the other end of the sliding block is fixedly connected with the first supporting plate, the top of the first supporting plate is fixedly connected with the electric push rod, the output end of the electric push rod is fixedly connected with the rack, the side wall of the rack is engaged with the transmission gear, the inner wall of the transmission gear is fixedly connected with the rotating rod, the outer wall of the two ends of the rotating rod is rotatably connected with the two vertical plates through the bearing, the bottom of the vertical plate is fixedly connected with the top of the lifting plate, the outer wall of the middle of the rotating rod is fixedly connected with the connecting block, and the side wall of the connecting block is fixedly connected with the back of the display board. By setting the adjusting assembly, when the display board is in the process of agricultural technology display, in order to make the display board more intuitively display to the audience, it is necessary to adjust the display inclination angle of the display board, the operator opens the electric push rod, the output end of the electric push rod extends upward, and the rack is pushed upward, when the rack moves upward, the rack is engaged with the transmission gear, so as to drive the transmission gear and the rotating rod to rotate, when the rotating rod rotates, the connecting block and the display board are driven to rotate, so as to adjust the display inclination angle of the display board, and improve the display effect.

[0009] Preferably, the adjusting assembly further comprises a fixed seat fixedly connected to the top center of the bearing plate, the inner wall of the top of the fixed seat is fixedly connected with a double-shaft motor, the two output ends of the double-shaft motor are fixedly connected with two lead screws respectively, the outer walls of the two lead screws are threadedly connected with two sleeve blocks respectively, the top of one of the sleeve blocks is movably connected with a first supporting plate through a hinge, the other end of the first supporting plate is movably connected with the bottom of the lifting plate through a hinge, the top of the other sleeve block is movably connected with a second supporting plate through a hinge, the other end of the second supporting plate is movably connected with the bottom of the lifting plate through a hinge, when the display plate is being displayed, in order to adjust the display height of the display plate, the operator starts the double-shaft motor to drive the two lead screws to rotate, when the two lead screws rotate, the two sleeve blocks move towards the center along the two ends of the outer walls of the two lead screws, the first supporting plate and the second supporting plate rotate under the action of the hinge, when the first supporting plate and the second supporting plate rotate, the lifting plate is lifted, the lifting plate moves upwards to drive the sliding block to move upwards along the outer wall of the fixed column, the lifting plate is lifted stably, and when the lifting plate is lifted, the display plate moves upwards to adjust the display height of the display plate.

[0010] Preferably, the first supporting plate and the second supporting plate are symmetrical in shape and size along the center of the fixed seat.

[0011] Preferably, the inside of the fixed box is provided with a rotating assembly, the rotating assembly comprises a driving motor fixedly connected to the bottom inner wall of the fixed box, the output end of the driving motor is fixedly connected with an output shaft, the top outer wall of the output shaft is fixedly connected with a driving gear, the side wall of the driving gear is engaged with a driven gear, the inner wall of the driven gear is fixedly connected with a transmission shaft, the bottom outer wall of the transmission shaft is rotatably connected with the bottom inner wall of the fixed box through a bearing, the top of the transmission shaft is fixedly connected with the bottom center of the bearing plate, and the top inner wall of the fixed box is rotatably connected with the outer wall of the transmission shaft through a bearing, when the display plate is being displayed, the rotating position of the display plate needs to be changed, the operator starts the driving motor to drive the output shaft to rotate, the output shaft rotates to drive the driving gear to rotate, the driving gear is engaged with the driven gear to drive the bearing plate to rotate, and when the bearing plate rotates, the display plate rotates to change the display position of the display plate to the audience.

[0012] Preferably, the bottom of the fixed box is fixedly connected with support legs, the number of the support legs is four, and the four support legs are located at the bottom of the four corners of the fixed box.

[0013] Preferably, two groups of heat dissipation grooves are formed in the two sides of the fixed box, and the heat dissipation grooves are used for ventilation and heat dissipation of the inside of the fixed box.

[0014] The agricultural technology demonstration multifunctional display device has the following beneficial effects: (1) The agricultural technology demonstration multifunctional display device, by setting the protection assembly, when the operator displays the agricultural technology through the display board, the display board is sometimes placed outside for display, when it rains, in order to avoid the display board from being eroded by rain, the upper part of the display board needs to be protected, the operator pulls the pull plate, the spring is stretched, the limiting column moves along the inner wall of the horizontal block, and the limiting column is separated from the inside of the bearing block, then the operator inserts the four supporting columns into the inside of the four bearing blocks, and then releases the pull plate, under the action of the spring, the limiting column is reset, the limiting column is inserted into the inner wall of the bottom side of the supporting column, thereby limiting the supporting column, fixing the baffle and the collecting frame, the collecting frame arranged on the top of the baffle can block and collect the rainwater in rainy weather, avoid the rainwater from eroding the display board, and improve the display effect of the display board; (2) The agricultural technology demonstration multifunctional display device, by setting the adjusting assembly, when the display board displays the agricultural technology, in order to make the display board more intuitively display to the audience, the display angle of the display board needs to be adjusted, the operator opens the electric push rod, the output end of the electric push rod extends upward, and the rack is pushed upward, when the rack moves upward, the transmission gear is engaged, thereby driving the transmission gear and the rotating rod to rotate, when the rotating rod rotates, the connecting block and the display board are driven to rotate, thereby adjusting the display angle of the display board, improving the display effect, when the display board displays, in order to adjust the display height of the display board, the operator opens the double-shaft motor, and the two lead screws rotate, when the two lead screws rotate, the two sleeve blocks move towards the middle along the outer walls of the two lead screws, under the action of the hinge, the first supporting plate and the second supporting plate rotate, when the first supporting plate and the second supporting plate rotate, the lifting plate is lifted, the lifting plate moves upward along the outer wall of the fixed column, the lifting plate is stably lifted, when the lifting plate rises, the display board moves upward, thereby adjusting the display height of the display board; (3) The agricultural technology demonstration multifunctional display device, when the display plate needs to change the rotating position during the display process, the operator starts the driving motor, drives the output shaft to rotate, drives the output shaft to rotate, drives the driven gear to rotate, drives the bearing plate to rotate, and drives the display plate to rotate, thereby changing the display position of the display plate to the audience. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the three-dimensional structure of the present application. Figure 2 It is a partial sectional view of the present application. Figure 3 It is a schematic view of the structure of the protection assembly in the present application. Figure 4 It is Figure 3 It is a partial enlarged view of A in the present application. Figure 5 It is a schematic view of the back structure of the adjusting assembly in the present application. Figure 6 It is a top view of the adjusting assembly in the present application. Figure 7 It is a partial sectional view of the rotating assembly in the present application.

[0016] In the figure: 1, fixed box; 2, display plate; 3, heat dissipation groove; 41, protection assembly; 411, bearing plate; 412, bearing block; 413, support column; 414, limiting column; 415, cross block; 416, pull plate; 417, spring; 418, baffle; 419, collection frame; 4110, drain pipe; 42, adjusting assembly; 421, fixed seat; 422, double-shaft motor; 423, screw; 424, sleeve block; 425, first support plate; 426, lifting plate; 427, second support plate; 428, sliding block; 429, fixed column; 4210, vertical plate; 4211, rotating rod; 4212, connecting block; 4213, transmission gear; 4214, electric push rod; 4215, rack; 43, rotating assembly; 431, driving motor; 432, output shaft; 433, driving gear; 434, driven gear; 435, transmission shaft; 5, support leg. DETAILED DESCRIPTION

[0017] In order to have a clearer understanding of the technical features, objects and effects of the present application, the specific embodiments of the present application will be described with reference to the drawings.

[0018] As Figures 1-7 shown, the present application has the following three specific embodiments. Embodiment

[0019] The utility model provides an agricultural technology demonstration multifunctional display device, including fixed box 1, The display board 2 arranged above the fixed box 1, And the protection assembly 41 for protecting the display board 2, the protection assembly 41 includes the bearing plate 411 arranged above the fixed box 1, the outer wall of the bearing plate 411 is fixedly connected with the bearing block 412, the inner wall bottom of the bearing block 412 is slidably connected with the support column 413, the bottom side inner wall of the support column 413 is slidably connected with the limiting column 414, the outer wall of the limiting column 414 is slidably connected with the side inner wall of the bearing block 412, the middle outer wall of the limiting column 414 is slidably connected with the cross block 415, the other end of the limiting column 414 is fixedly connected with the pull plate 416, the sidewall of the pull plate 416 is fixedly connected with the spring 417, the other end of the spring 417 is fixedly connected with the sidewall of the cross block 415, the top of the support column 413 is fixedly connected with the baffle 418, and the top of the baffle 418 is fixedly connected with the collecting frame 419, By setting the protection assembly 41, when the operator displays the agricultural technology through the display board 2, the display board 2 is sometimes placed outside for display, when it rains, in order to avoid the display board 2 from being eroded by rain, the upper part of the display board 2 needs to be protected, the operator pulls the pull plate 416, the spring 417 is stretched, the limiting column 414 moves along the inner wall of the cross block 415 and is separated from the inside of the bearing block 412, then the operator inserts the four support columns 413 into the four bearing blocks 412, and then releases the pull plate 416, under the action of the spring 417, the limiting column 414 is reset, the limiting column 414 is inserted into the bottom side inner wall of the support column 413, so that the support column 413 is limited, the baffle 418 and the collecting frame 419 are fixed, the collecting frame 419 arranged on the top of the baffle 418 can block and collect rainwater when it rains, avoiding rainwater from eroding the display board 2, and improving the display effect of the display board 2, The side inner wall of the collecting frame 419 is connected with six drain pipes 4110, the six drain pipes 4110 are divided into two groups, and the two groups of drain pipes 4110 are symmetrically arranged on the two sides of the collecting frame 419, when the collecting frame 419 collects rainwater, the rainwater is discharged from the two sides of the collecting frame 419 through the two groups of drain pipes 4110 arranged on the two sides of the collecting frame 419, The bottom of the fixed box 1 is fixedly connected with four support legs 5, the four support legs 5 are arranged at the bottom of the four corners of the fixed box 1, and the four support legs 5 arranged at the bottom of the fixed box 1 can stably support the fixed box 1, Two groups of heat dissipation grooves 3 are arranged on two sides of the fixing box 1, and the heat dissipation grooves 3 are used for ventilation and heat dissipation of the inside of the fixing box 1. Embodiment

[0020] The difference between the embodiment and the embodiment 1 is that the embodiment discloses an adjusting assembly, as shown in Figure 5 、 Figure 6 The top of the bearing plate 411 is further provided with an adjusting assembly 42, the adjusting assembly 42 comprises four fixed columns 429 fixedly connected to the top of four corners of the bearing plate 411, the outer wall of the fixed column 429 is slidably connected with a sliding block 428, the other end of the sliding block 428 is fixedly connected with a first supporting plate 425, the top of the first supporting plate 425 is fixedly connected with an electric push rod 4214, the output end of the electric push rod 4214 is fixedly connected with a rack 4215, the side wall of the rack 4215 is engaged with a transmission gear 4213, the inner wall of the transmission gear 4213 is fixedly connected with a rotating rod 4211, the outer wall of both ends of the rotating rod 4211 is rotatably connected with two vertical plates 4210 through bearings, the bottom of the vertical plate 4210 is fixedly connected with the top of a lifting plate 426, the outer wall of the middle of the rotating rod 4211 is fixedly connected with a connecting block 4212, and the side wall of the connecting block 4212 is fixedly connected with the back of the display plate 2; By arranging the adjusting assembly 42, when the display plate 2 is used for agricultural technology display, in order to make the display plate 2 more intuitively display to the audience, it is necessary to adjust the display inclination angle of the display plate 2, the operator opens the electric push rod 4214, the output end of the electric push rod 4214 extends upwards, and the rack 4215 moves upwards, when the rack 4215 moves upwards, the transmission gear 4213 is engaged, so as to drive the transmission gear 4213 and the rotating rod 4211 to rotate, when the rotating rod 4211 rotates, the connecting block 4212 and the display plate 2 are driven to rotate, so as to adjust the display inclination angle of the display plate 2, and improve the display effect; The adjusting assembly 42 further comprises a fixing seat 421 fixedly connected to the top center of the bearing plate 411, the inner wall of the top of the fixing seat 421 is fixedly connected with a double-shaft motor 422, the two output ends of the double-shaft motor 422 are fixedly connected with two lead screws 423 respectively, the outer walls of the two lead screws 423 are threadedly connected with two sleeve blocks 424 respectively, the top of one of the two sleeve blocks 424 is hingedly connected with a first supporting plate 425, the other end of the first supporting plate 425 is hingedly connected with the bottom of a lifting plate 426, the top of the other sleeve block 424 is hingedly connected with a second supporting plate 427, the other end of the second supporting plate 427 is hingedly connected with the bottom of the lifting plate 426, when the display plate 2 is being displayed, in order to adjust the display height of the display plate 2, the operator starts the double-shaft motor 422, so as to drive the two lead screws 423 to rotate, when the two lead screws 423 rotate, the two sleeve blocks 424 move to the middle along the outer walls of the two ends of the two lead screws 423 respectively, the first supporting plate 425 and the second supporting plate 427 are driven to rotate through the hinges, when the first supporting plate 425 and the second supporting plate 427 rotate, the lifting plate 426 is lifted, when the lifting plate 426 rises, the sliding block 428 moves upwards along the outer wall of the fixing column 429, so that the lifting plate 426 is lifted stably, after the lifting plate 426 rises, the display plate 2 is driven to move upwards, so as to adjust the display height of the display plate 2. The first supporting plate 425 and the second supporting plate 427 are symmetrical along the central surface of the fixing seat 421. Embodiment

[0021] The difference between the embodiment and embodiment 2 is that the embodiment discloses a rotating assembly, as shown in Figure 7The inside of the fixed box 1 is provided with a rotating assembly 43, the rotating assembly 43 comprises a driving motor 431 fixedly connected to the inner wall bottom of the fixed box 1, the output end of the driving motor 431 is fixedly connected with an output shaft 432, the top outer wall of the output shaft 432 is fixedly connected with a driving gear 433, the side wall of the driving gear 433 is engaged with a driven gear 434, the inner wall of the driven gear 434 is fixedly connected with a transmission shaft 435, the bottom outer wall of the transmission shaft 435 is rotatably connected with the inner wall bottom of the fixed box 1 through a bearing, the top of the transmission shaft 435 is fixedly connected with the bottom center of the bearing plate 411, the top inner wall of the fixed box 1 is rotatably connected with the outer wall of the transmission shaft 435 through a bearing, by arranging the rotating assembly 43, when the display board 2 is displayed in the process, the rotating position of the display board 2 needs to be changed, the operator starts the driving motor 431, the output shaft 432 is driven to rotate, the output shaft 432 is driven to rotate, the driving gear 433 is driven to rotate, the driving gear 433 is engaged with the driven gear 434, so as to drive the bearing plate 411 to rotate, when the bearing plate 411 rotates, the display board 2 is driven to rotate, so as to change the display position of the display board 2 to the audience.

[0022] Working principle: when the operator displays the agricultural technology through the display board 2, sometimes the display board 2 is placed outside for display, when it rains, in order to avoid the display board 2 from being eroded by rain, the upper part of the display board 2 needs to be protected, the operator pulls the pull plate 416, the spring 417 is stretched, the limiting column 414 moves along the inner wall of the cross block 415, and the limiting column 414 is separated from the inside of the bearing block 412, then the operator inserts the four supporting columns 413 into the four bearing blocks 412, and then releases the pull plate 416, under the action of the spring 417, the limiting column 414 is reset, the limiting column 414 is inserted into the bottom side wall of the supporting column 413, so as to limit the supporting column 413, the baffle 418 and the collecting frame 419 are fixed, the collecting frame 419 arranged on the top of the baffle 418 can block and collect the rainwater in rainy weather, avoid the rainwater from eroding the display board 2, and improve the display effect of the display board 2; When the display board 2 is in the process of agricultural technology display, in order to make the display board 2 more intuitively display to the audience, it is necessary to adjust the display angle of the display board 2, the operator opens the electric push rod 4214, the output end of the electric push rod 4214 extends upward, and the rack 4215 is pushed upward, when the rack 4215 moves upward, the transmission gear 4213 is engaged, so as to drive the transmission gear 4213 and the rotating rod 4211 to rotate, when the rotating rod 4211 rotates, the connecting block 4212 and the display board 2 are driven to rotate, so as to adjust the display angle of the display board 2 and improve the display effect. When the display board 2 is in the process of display, in order to adjust the display height of the display board 2, the operator opens the double shaft motor 422, and the two lead screws 423 are driven to rotate, when the two lead screws 423 rotate, the two sleeve blocks 424 move to the middle along the outer walls of the two lead screws 423, under the action of the hinge, the first supporting plate 425 and the second supporting plate 427 are driven to rotate, when the first supporting plate 425 and the second supporting plate 427 rotate, the lifting plate 426 is lifted, the sliding block 428 moves upward along the outer wall of the fixed column 429, the lifting plate 426 is lifted stably, when the lifting plate 426 is lifted, the display board 2 is driven to move upward, so as to adjust the display height of the display board 2. When the display board 2 is in the process of display, the rotating position of the display board 2 needs to be changed, the operator opens the driving motor 431, the output shaft 432 is driven to rotate, the output shaft 432 rotates, the driving gear 433 is driven to rotate, the driving gear 433 is engaged with the driven gear 434, so as to drive the bearing plate 411 to rotate, when the bearing plate 411 rotates, the display board 2 is driven to rotate, so as to change the display position of the display board 2 to the audience.

[0023] The above is only a specific embodiment of the present application, and is not used to limit the scope of the present application. Any person skilled in the art can make equivalent changes and modifications without departing from the concept and principle of the present application, which shall be within the scope of protection of the present application. It should be noted that the components of the present application are not limited to the above overall application, and the technical features described in the specification of the present application can be selected alone or combined for use, therefore, the present application naturally covers other combinations and specific applications related to the present application.

Claims

1. A multi-functional demonstration device for agricultural technology, comprising a fixed box (1); Display panel (2) positioned above the fixed box (1); And a protective assembly (41) for protecting the display panel (2), characterized in that: The protective assembly (41) includes a support plate (411) disposed above the fixed box (1). A support block (412) is fixedly connected to the outer wall of the support plate (411). A support column (413) is slidably connected to the bottom of the inner wall of the support block (412). A limit column (414) is slidably connected to the inner wall of the bottom side of the support column (413). The outer wall of the limit column (414) is slidably connected to the inner wall of the side of the support block (412). A horizontal block (415) is slidably connected to the outer wall of the middle part of the limit column (414). A pull plate (416) is fixedly connected to the other end of the limit column (414). A spring (417) is fixedly connected to the side wall of the pull plate (416). The other end of the spring (417) is fixedly connected to the side wall of the horizontal block (415). A baffle (418) is fixedly connected to the top of the support column (413). A collection frame (419) is fixedly connected to the top of the baffle (418).

2. The multifunctional demonstration device for agricultural technology as described in claim 1, characterized in that: The inner side wall of the collection box (419) is connected to a drain pipe (4110). There are six drain pipes (4110), which are divided into two groups. The two groups of drain pipes (4110) are symmetrically distributed on both sides of the collection box (419).

3. The multifunctional demonstration device for agricultural technology as described in claim 1, characterized in that: The top of the support plate (411) is also provided with an adjustment assembly (42). The adjustment assembly (42) includes four fixed posts (429) fixedly connected to the top of the four corners of the support plate (411). The outer wall of the fixed posts (429) is slidably connected to a slider (428). The other end of the slider (428) is fixedly connected to a first support plate (425). The top of the first support plate (425) is fixedly connected to an electric push rod (4214). The output end of the electric push rod (4214) is fixedly connected to a rack (4215). The rack (4215) has a transmission gear (4213) meshing on its side wall. The inner wall of the transmission gear (4213) is fixedly connected to a rotating rod (4211). The outer walls of both ends of the rotating rod (4211) are rotatably connected to two vertical plates (4210) via bearings. The bottom of the vertical plate (4210) is fixedly connected to the top of the lifting plate (426). The middle outer wall of the rotating rod (4211) is fixedly connected to a connecting block (4212). The side wall of the connecting block (4212) is fixedly connected to the back of the display panel (2).

4. The multifunctional demonstration device for agricultural technology as described in claim 3, characterized in that: The adjustment assembly (42) further includes a fixed seat (421) fixedly connected to the top center of the support plate (411). A dual-axis motor (422) is fixedly connected to the top inner wall of the fixed seat (421). Two lead screws (423) are fixedly connected to the two output ends of the dual-axis motor (422). Two sleeve blocks (424) are threadedly connected to the outer walls of the two lead screws (423). The top of one sleeve block (424) is movably connected to a first support plate (425) via a hinge. The other end of the first support plate (425) is movably connected to the bottom of the lifting plate (426) via a hinge. The top of the other sleeve block (424) is movably connected to a second support plate (427) via a hinge. The other end of the second support plate (427) is movably connected to the bottom of the lifting plate (426) via a hinge.

5. The multifunctional demonstration device for agricultural technology as described in claim 4, characterized in that: The first support plate (425) and the second support plate (427) are identical in shape and size, and the first support plate (425) and the second support plate (427) are symmetrically distributed along the center plane of the fixed base (421).

6. The multifunctional demonstration device for agricultural technology as described in claim 1, characterized in that: The fixed box (1) is provided with a rotating assembly (43). The rotating assembly (43) includes a drive motor (431) fixedly connected to the bottom of the inner wall of the fixed box (1). The output end of the drive motor (431) is fixedly connected to an output shaft (432). The top outer wall of the output shaft (432) is fixedly connected to a drive gear (433). The side wall of the drive gear (433) is meshed with a driven gear (434). The inner wall of the driven gear (434) is fixedly connected to a transmission shaft (435). The bottom outer wall of the transmission shaft (435) is rotatably connected to the bottom of the inner wall of the fixed box (1) through a bearing. The top of the transmission shaft (435) is fixedly connected to the bottom center of the support plate (411). The top inner wall of the fixed box (1) is rotatably connected to the outer wall of the transmission shaft (435) through a bearing.

7. The multifunctional demonstration device for agricultural technology as described in claim 1, characterized in that: The bottom of the fixed box (1) is fixedly connected with support legs (5), and there are four support legs (5), which are located at the bottom of the four corners of the fixed box (1).

8. The multifunctional demonstration device for agricultural technology as described in claim 1, characterized in that: Two sets of heat dissipation slots (3) are provided on both sides of the fixed box (1), and the heat dissipation slots (3) are used to ventilate and dissipate heat inside the fixed box (1).

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