Experimental device for identifying drought tolerance of corn seeds in seedling stage

Abstract

The invention discloses a corn seed seedling stage drought tolerance identification experiment device, and relates to the technical field of agricultural planting experiments. The experiment box is in contact with the upper side of the spacer block; soil is arranged in the experiment box, and a moisture detector is inserted into the soil; the two movable blocks are arranged on the outer sides of the ventilation grooves in an attached mode respectively. The two movable assemblies are arranged on the lower sides of the movable blocks correspondingly. The movable cover penetrates through the upper side of the experiment box body in a sliding manner, and a guide frame is arranged on the upper side of the movable cover and is arranged on the upper side of the experiment box body in a contact manner; the opening and closing assembly is arranged on the rear side of the guide frame; corn planting is performed in the test box body to control moisture and air flow, so that the drought tolerance of corn seedlings can be measured more accurately.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural planting experiments, and particularly relates to an experimental device for identifying the drought tolerance of corn seeds at the seedling stage. Background Art

[0002] From the stage of seed germination to seedling growth, the plants at this time are relatively fragile and are easily affected by environmental stresses, such as drought; if the growth is stagnant or the seedlings die due to drought during the seedling stage, it will directly affect the later plant height, leaf development and ear differentiation, and ultimately reduce the yield; therefore, it is necessary to test the drought resistance of corn at this stage; most of the existing drought tolerance identification experiments are field experiments, and the field experiments are greatly affected by environmental factors and are not accurately controlled, resulting in poor experimental results. Summary of the Invention

[0003] The purpose of the present invention is to provide an experimental device for identifying the drought tolerance of corn seeds at the seedling stage, which has a simple structure, reasonable design and convenient use, and plants corn in the test box body to control the water and air flow, so as to more accurately measure the drought tolerance of corn seedlings.

[0004] To achieve the above object, the present invention adopts the following technical solutions: It includes an experimental box body and a box door, and the box door is relatively arranged on the left and right of the front side of the experimental box body; it also includes: A water tray, the water tray is in contact with the inner bottom surface of the experimental box body; a partition block is in contact with the upper side of the water tray, and the left and right sides of the partition block are respectively connected to the left and right inner walls of the experimental box body; through holes are arranged in the partition block; An experimental box, the experimental box is in contact with the upper side of the partition block; filter holes are arranged at the bottom of the experimental box; soil is arranged inside the experimental box, and a moisture detector is inserted into the soil, and the moisture detector is connected to the control panel on the right side of the experimental box body; Ventilation grooves, there are two ventilation grooves, which are respectively opened oppositely in the vertical ends on the left and right sides of the experimental box body; Movable blocks, there are two movable blocks, which are respectively attached to the outer sides of the ventilation grooves; Movable components, there are two movable components, which are respectively arranged on the lower sides of the movable blocks; A movable cover, the movable cover slidably penetrates through the upper side of the experimental box body, and a guide frame is arranged on the upper side of the movable cover, and the guide frame is in contact with the upper side of the experimental box body; An opening and closing component, the opening and closing component is arranged at the rear side of the guide frame; Through the above technical solution design, corn seeds are sown in the soil of the experimental box; the movable components on the left and right sides are started to move the movable blocks downward and disengage from the ventilation slots to put the ventilation slots in a ventilated state; secondly, in order to improve the ventilation effect, the opening and closing components are started to move the movable cover to the right, so that the upper side of the experimental box is in a circulation state, thereby improving wind circulation and making the soil drier.

[0005] As a further improvement of the present invention, a water tank is provided at the rear side of the experimental box, and a water pump is provided at the upper side of the water tank, and the water pump is connected to the control panel on the right side of the experimental box; the water inlet end of the water pump is connected to the water tank through a water pipe; a drainage pipe is provided at the water outlet end of the water pump, and the drainage pipe passes through the side wall of the experimental box and is provided on the upper side of the experimental box; and an extension pipe is provided at the drainage end of the drainage pipe, and water spray pipes are evenly spaced at the front and rear sides of the extension pipe, and a nozzle is provided at the lower side of the water spray pipe; Through the above technical solution design, the water pump is started to make the nozzle spray water on the seeds to meet the seed germination requirements, and the water tray on the lower side of the experimental box filters the excess water.

[0006] As a further improvement of the present invention, the inner walls on both sides of the experimental box are fixedly provided with screws, and a screw tube is provided on the screw through a threaded connection sleeve, and a positioning block is fixedly provided at the inner end of the screw tube, and the positioning block is contacted with the experimental box; Through the above technical solution design, the experimental box is kept in a fixed state.

[0007] As a further improvement of the present invention, a rotating ring is sleeved and fixed on the spiral tube, and finger grooves are arranged on the outer ring wall of the rotating ring at equal angles around the circumference; The above technical solution is designed to facilitate the rotation operation of the spiral tube.

[0008] As a further improvement of the present invention, the movable component comprises: A support block, wherein the support block is fixedly arranged on the outer side wall of the experimental box, and the lower surface of the support block is arranged on the same surface as the lower surface of the experimental box; a support frame is arranged on the upper side of the support block, and the support frame is arranged in a "U"-shaped structure, and the vertical end of the support frame is connected to the side wall of the experimental box; The driving motors are two and are respectively fixed on the outer walls of the vertical ends of the front and rear sides of the support frame through motor brackets; and the driving motors are connected to the control panel on the right side of the experimental box; the output shaft of the driving motor passes through the support frame and is arranged inside the support frame; Transmission shafts, there are two transmission shafts, which are arranged in the support frame in a front-to-rear manner, and one end of the transmission shaft is rotationally connected to the vertical end of the support frame through a bearing, and the transmission shaft is connected to the output shaft of the driving motor through a bevel gear assembly; Rotating gears, there are two of the rotating gears, which are respectively sleeved and fixed on the transmission shaft; Driving tooth block, the driving tooth block is arranged between the front and rear rotating gears, and tooth teeth are arranged on both the front and rear sides of the driving tooth block, and the tooth teeth are respectively meshed with the rotating gears; Connecting block, the connecting block is fixedly arranged on the upper side of the driving tooth block, and the upper side of the connecting block is connected with the movable block; Guide block, the guide block is fixedly arranged on the upper side of the support block, and the guide block penetrates through the driving tooth block; Through the design of the above technical solution, the driving motors on both the front and rear sides are started simultaneously, the rotating gears are driven to rotate through the bevel gear assembly, the two rotating gears rotate towards each other, the driving tooth block is driven, and the movable block is moved.

[0009] As a further improvement of the present invention, the opening and closing assembly includes: Connecting tooth block, the connecting tooth block is fixedly arranged on the rear side of the guide frame, and the connecting tooth block is in contact with the right side of the experimental box body; Rotating member, the rotating member is rotatably connected to the rear side of the experimental box body through a shaft and a bearing, and the rotating member is arranged on the left side of the water tank. An umbrella-shaped tooth is arranged on the upper side of the rotating member, and the umbrella-shaped tooth is meshed with the lower side of the connecting tooth block; First connecting member, the first connecting member is fixedly arranged on the rear side of the rotating member; Rotating motor, the rotating motor is fixedly arranged on the rear side of the experimental box body through a motor bracket, and the rotating motor is arranged on the lower side of the rotating member. The rotating motor is connected to the control panel on the right side of the experimental box body; a second connecting member is arranged on the rear output end of the rotating motor; Third connecting member, the third connecting member is hinged between the first connecting member and the second connecting member through a hinge shaft; Through the design of the above technical solution, the rotating motor is started, the second connecting member is rotated, and through the cooperation of the third connecting member and the first connecting member, the rotating member is rotated around the rotation center, the connecting tooth block is driven, and the guide frame is moved to open the movable cover.

[0010] As a further improvement of the present invention, an upper perspective window is arranged in the movable cover; Through the design of the above technical solution, the growth condition of the corn seedlings is observed from the upper side.

[0011] As a further improvement of the present invention, a front perspective window is arranged in the box door, and a handle is also arranged on the box door; Through the design of the above technical solution, the growth of the corn seedlings is observed from the front side.

[0012] As a further improvement of the present invention, support plates are sleeved on the extension pipe at equal intervals, and the rear sides of the support plates are on the rear inner wall of the experimental box body; Through the above technical solution design, the extension pipe is supported.

[0013] The working principle of the present invention: Corn seeds are sown in the soil of the experimental box. The water pump is started to make the nozzle sprinkle water on the seeds to meet the germination requirements of the seeds. The water collecting tray under the experimental box filters the excess water; during the growth of the seedling, the water pump is turned off, and the front box door is opened. The water collecting tray is taken out, the excess water is poured out, and then it is reinstalled under the partition block; the driving motors on the front and rear sides are started simultaneously, and the rotating gear is driven through the bevel gear assembly. The two rotating gears rotate towards each other to drive the driving tooth block, so that the movable block moves downward and disengages from the ventilation groove, so that the ventilation groove is in a ventilated state. Moreover, a blowing device can also be used to blow air into the ventilation groove to blow the soil in the experimental box to accelerate the dryness of the soil; Secondly, in order to improve the ventilation effect, the rotating motor is started to make the second connecting piece rotate, and through the cooperation of the third connecting piece and the first connecting piece, the rotating piece rotates around the rotation center to drive the connecting tooth block, so that the guiding frame moves, and the movable cover moves to the right, so that the upper side of the experimental box body is in a circulating state, improving the circulation of air and making the soil drier.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. Ventilation grooves are provided on the left and right sides of the experimental box body to control the flow direction of the air inside the experimental box body, and external blowing equipment can also be used to blow air into the ventilation groove to accelerate the drying of the soil; 2. By driving the movement of the movable block, the ventilation cooperation between it and the ventilation groove is controlled; 3. A movable cover is added to the upper side of the experimental box body. By driving the movable cover, the upper side of the experimental box body is in an air circulation state; 4. Through the cooperation of the first connecting piece, the second connecting piece, the third connecting piece and the rotating piece, the movable cover is driven. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention.

[0016] Figure 2 is Figure 1 the southeast isometric structural diagram of

[0017] Figure 3 is Figure 1 the northeast isometric structural diagram of

[0018] Figure 4 is Figure 3 the enlarged view of part A of

[0019] Figure 5 It is a schematic diagram of the internal structure of the experimental box body in the present invention.

[0020] Figure 6 is Figure 5 The enlarged view of part A in

[0021] Figure 7 It is a schematic diagram of the internal structure of the support frame in the present invention.

[0022] Explanation of the reference numerals in the drawings: Experimental box body 1, box door 2, water receiving tray 3, partition block 4, experimental box 5, moisture detector 6, water tank 7, water pump 8, drain pipe 9, extension pipe 10, water spray pipe 11, nozzle 12, ventilation slot 13, movable block 14, movable assembly 15, support block 15-1, support frame 15-2, drive motor 15-3, transmission shaft 15-4, rotating gear 15-5, drive tooth block 15-6, connecting block 15-7, guide block 15-8, movable cover 16, guide frame 17, opening and closing assembly 18, connecting tooth block 18-1, rotating member 18-2, first connecting member 18-3, rotating motor 18-4, second connecting member 18-5, third connecting member 18-6, screw 19, screw tube 20, positioning block 21, rotating ring 22, upper perspective window 23, front perspective window 24, support plate 25. Detailed implementation manners

[0023] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the drawings. Only the preferred embodiments in the description are taken as examples. All other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0024] Embodiment 1: Please refer to Figures 1-7 , this embodiment includes an experimental box body 1 and a box door 2. The box door 2 is arranged opposite to the left and right on the front side of the experimental box body 1; a front perspective window 24 is arranged inside the box door 2, and a handle is also arranged on the box door 2; It also includes: A water receiving tray 3, the water receiving tray 3 is in contact with the inner bottom surface of the experimental box body 1; a partition block 4 is in contact with the upper side of the water receiving tray 3, and the left and right sides of the partition block 4 are respectively connected to the left and right inner walls of the experimental box body 1; through holes are arranged inside the partition block 4; An experimental box 5, the experimental box 5 is in contact with the upper side of the partition block 4; filter holes are arranged at the bottom of the experimental box 5; soil is arranged inside the experimental box 5, and a moisture detector 6 is inserted into the soil, and the moisture detector 6 is connected to the control panel on the right side of the experimental box body 1; A water tank 7, wherein the water tank 7 is arranged at the rear side of the experimental box body 1, and a water pump 8 is arranged on the upper side of the water tank 7, and the water pump 8 is connected to the control panel on the right side of the experimental box body 1; the water inlet end of the water pump 8 is connected to the water tank 7 through a water pipe; a drain pipe 9 is arranged at the water outlet end of the water pump 8, and the drain pipe 9 is arranged on the upper side of the experimental box 5 after passing through the side wall of the experimental box body 1; and an extension pipe 10 is arranged at the drainage end of the drain pipe 9, and support plates 25 are evenly spaced on the extension pipe 10, and the rear side of the support plate 25 is connected to the rear inner wall of the experimental box body 1; water spray pipes 11 are evenly spaced on the front and rear sides of the extension pipe 10, and a nozzle 12 is arranged on the lower side of the water spray pipe 11; support plates 25 are evenly spaced on the extension pipe 10, and the rear side of the support plate 25 is connected to the rear inner wall of the experimental box body 1; Ventilation slots 13, there are two ventilation slots 13, which are respectively opened in the vertical ends of the left and right sides of the experimental box 1, and the ventilation slots 13 are arranged on the lower side of the drain pipe 9; Movable blocks 14, wherein there are two movable blocks 14, which are respectively arranged on the outer sides of the ventilation slots 13; Movable components 15, there are two movable components 15, which are respectively arranged at the lower side of the movable block 14; A movable cover 16 is slidably disposed on the upper side of the experimental box 1, and an upper perspective window 23 is disposed in the movable cover 16; and a guide frame 17 is disposed on the upper side of the movable cover 16, and the guide frame 17 is disposed in contact with the upper side of the experimental box 1; An opening and closing assembly 18, wherein the opening and closing assembly 18 is disposed at the rear side of the guide frame 17; Through the above technical solution design, corn seeds are sown in the soil of the experimental box 5, and the water pump 8 is started to make the nozzle 12 sprinkle water on the seeds to meet the seed germination requirements. The water tray 3 on the lower side of the experimental box 5 filters the excess water; during the growth of the seed seedlings, the water pump 8 is turned off; the movable components 15 on the left and right sides are started to move the movable block 14 downward and disengage from the ventilation slot 13 to put the ventilation slot 13 in a ventilated state; secondly, in order to improve the ventilation effect, the opening and closing component 18 is started to move the movable cover 16 to the right side, so that the upper side of the experimental box 1 is in a circulation state, thereby improving the circulation of wind and making the soil drier.

[0025] Embodiment 2: See also Figures 1-7 , further improved on the basis of Example 1, the inner walls on both sides of the experimental box 1 are fixedly provided with screws 19, and the screws 19 are provided with a screw tube 20 through a threaded connection, and the inner end of the screw tube 20 is fixedly provided with a positioning block 21, and the positioning block 21 is contacted with the experimental box 5; a rotating ring 22 is sleeved and fixed on the screw tube 20, and finger grooves are provided on the outer ring wall of the rotating ring 22 at equal angles around the circumference; Through the above technical solution design, the experimental box 5 is in a fixed state.

[0026] Embodiment 3: See also Figures 1-7 , further improved on the basis of embodiment 1, the movable component 15 comprises: A support block 15-1, wherein the support block 15-1 is fixedly arranged on the outer side wall of the experimental box 1, and the lower surface of the support block 15-1 is arranged on the same surface as the lower surface of the experimental box; a support frame 15-2 is arranged on the upper side of the support block 15-1, and the support frame 15-2 is arranged in a "U"-shaped structure, and the vertical end of the support frame 15-2 is connected to the side wall of the experimental box 1; Driving motor 15-3, there are two driving motors 15-3, which are respectively fixed on the outer walls of the vertical ends of the front and rear sides of the supporting frame 15-2 through motor brackets; the specific use model of the driving motor 15-3 is directly purchased and installed from the market according to actual use requirements; and the driving motor 15-3 is connected to the control panel on the right side of the experimental box 1; the output shaft of the driving motor 15-3 passes through the supporting frame 15-2 and is arranged in the supporting frame 15-2; Transmission shaft 15-4, there are two transmission shafts 15-4, which are arranged in the support frame 15-2 in a front-to-rear manner, and one end of the transmission shaft 15-4 is rotationally connected to the vertical end of the support frame 15-2 through a bearing, and the transmission shaft 15-4 is connected to the output shaft of the driving motor 15-3 through a bevel gear assembly; Rotating gears 15-5, there are two rotating gears 15-5, which are respectively sleeved and fixed on the transmission shaft 15-4; A driving gear block 15-6, wherein the driving gear block 15-6 is disposed between the front and rear rotating gears 15-5, and teeth are disposed on both the front and rear sides of the driving gear block 15-6, and the teeth are respectively meshed with the rotating gears 15-5; A connecting block 15-7, wherein the connecting block 15-7 is fixedly arranged on the upper side of the driving gear block 15-6, and the upper side of the connecting block 15-7 is connected to the movable block 14; A guide block 15-8, wherein the guide block 15-8 is fixedly disposed on the upper side of the support block 15-1, and the guide block 15-8 is penetrated in the driving gear block 15-6; Through the above technical solution design, the driving motors 15-3 on the front and rear sides are started at the same time, and the rotating gear 15-5 is driven to rotate through the bevel gear assembly. The two rotating gears 15-5 rotate towards each other, driving the driving gear block 15-6 to move the movable block 14.

[0027] Embodiment 4: See also Figures 1-7, on the basis of Embodiment 1, a further improvement is made. The opening and closing assembly 18 includes: A connecting tooth block 18-1, which is fixedly arranged at the rear side of the guiding frame 17, and the connecting tooth block 18-1 is in contact with the right side of the experimental box body 1; A rotating member 18-2, which is rotatably connected to the rear side of the experimental box body 1 through a shaft and bearings, and the rotating member 18-2 is arranged on the left side of the water tank 7. An umbrella-shaped tooth is arranged on the upper side of the rotating member 18-2, and the umbrella-shaped tooth is meshed with the lower side of the connecting tooth block 18-1; A first connecting member 18-3, which is fixedly arranged at the rear side of the rotating member 18-2; A rotating motor 18-4, which is fixedly arranged at the rear side of the experimental box body 1 through a motor bracket, and the rotating motor 18-4 is arranged under the rotating member 18-2. The specific model of the rotating motor 18-4 is directly purchased, installed and used from the market according to actual usage requirements; the rotating motor 18-4 is connected to the control panel on the right side of the experimental box body 1; a second connecting member 18-5 is arranged on the rear output end of the rotating motor 18-4; A third connecting member 18-6, which is hinged between the first connecting member 18-3 and the second connecting member 18-5 through a hinge shaft; Through the above technical solution design, start the rotating motor 18-4 to make the second connecting member 18-5 rotate, and through the cooperation of the third connecting member 18-6 and the first connecting member 18-3, make the rotating member 18-2 rotate around the rotation center, drive the connecting tooth block 18-1, and make the guiding frame 17 move to open the movable cover 16.

[0028] When using the present invention, corn seeds are sown in the soil of the experimental box 5. The water pump 8 is started to make the nozzle 12 sprinkle water on the seeds to meet the germination requirements of the seeds. The water collecting tray 3 on the lower side of the experimental box 5 filters the excess water. During the growth of the seedling, the water pump 8 is turned off, and the front door 2 is opened. The water collecting tray 3 is taken out, the excess water is poured out, and then it is reinstalled under the partition block 4. The driving motors 15-3 on the front and rear sides are started simultaneously. The rotating gear 15-5 is driven by the bevel gear assembly. The two rotating gears 15-5 rotate towards each other to drive the driving tooth block 15-6, so that the movable block 14 moves downward and disengages from the ventilation slot 13, making the ventilation slot 13 in a ventilated state. Moreover, a blowing device can be used to blow air into the ventilation slot 13 to blow the soil in the experimental box 5 and accelerate the dryness of the soil. Secondly, to improve the ventilation effect, the rotating motor 18-4 is started to make the second connecting member 18-5 rotate. Through the cooperation of the third connecting member 18-6 and the first connecting member 18-3, the rotating member 18-2 rotates around the rotation center to drive the connecting tooth block 18-1, making the guide frame 17 move and the movable cover 16 move to the right, making the upper side of the experimental box body 1 in a circulating state, improving the air circulation and making the soil drier.

[0029] Compared with the prior art, the beneficial effects of the present invention are: 1. Ventilation slots 13 are arranged on the left and right sides of the experimental box body 1 to control the air flow direction inside the experimental box body 1, and an external blowing device can also be used to blow air into the ventilation slots 13 to accelerate the drying of the soil. 2. The movable block 14 is driven to move to control its ventilation cooperation with the ventilation slot 13. 3. A movable cover 16 is added to the upper side of the experimental box body 1. By driving the movable cover 16, the upper side of the experimental box body 1 is in an air circulation state. 4. The movable cover 16 is driven through the cooperation of the first connecting member 18-3, the second connecting member 18-5, the third connecting member 18-6 and the rotating member 18-2.

[0030] For those skilled in the art, they can modify the technical solutions recorded in the foregoing embodiments and make equivalent replacements for some technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A corn seed seedling drought tolerance test device, comprising an experimental box (1) and a box door (2), wherein the box doors (2) are arranged opposite to each other on the left and right sides of the front side of the experimental box (1); It is characterized in that It also contains: A water tray (3), the water tray (3) being arranged in contact with the inner bottom surface of the experimental box (1); a spacer (4) being arranged in contact with the upper side of the water tray (3), and the left and right sides of the spacer (4) being respectively connected to the left and right inner walls of the experimental box (1); a through hole being arranged in the spacer (4); An experimental box (5), the experimental box (5) being arranged in contact with the upper side of the spacer (4); a filter hole being arranged at the bottom of the experimental box (5); soil being arranged inside the experimental box (5), a moisture detector (6) being inserted into the soil, and the moisture detector (6) being connected to a control panel on the right side of the experimental box (1); Ventilation slots (13), wherein the number of the ventilation slots (13) is two and they are respectively disposed in the vertical ends of the left and right sides of the experimental box (1) opposite to each other; Movable blocks (14), wherein the number of the movable blocks (14) is two and they are respectively arranged on the outside of the ventilation slot (13); A movable component (15), wherein the movable components (15) are two in number and are respectively arranged on the lower side of the movable block (14); A movable cover (16), the movable cover (16) being slidably disposed on the upper side of the experimental box (1), and a guide frame (17) being disposed on the upper side of the movable cover (16), the guide frame (17) being disposed in contact with the upper side of the experimental box (1); An opening and closing assembly (18), wherein the opening and closing assembly (18) is arranged on the rear side of the guide frame (17).

2. The corn seed drought tolerance test device according to claim 1, characterized in that: A water tank (7) is arranged at the rear side of the experimental box (1), and a water pump (8) is arranged on the upper side of the water tank (7), and the water pump (8) is connected to a control panel on the right side of the experimental box (1); a water inlet end of the water pump (8) is connected to the water tank (7) via a water pipe; a drainage pipe (9) is arranged at the water outlet end of the water pump (8), and the drainage pipe (9) passes through the side wall of the experimental box (1) and is arranged on the upper side of the experimental box (5); and an extension pipe (10) is arranged at the drainage end of the drainage pipe (9), and water spray pipes (11) are evenly spaced on both sides of the extension pipe (10), and a nozzle (12) is arranged on the lower side of the water spray pipe (11).

3. The corn seed drought tolerance test device according to claim 1, characterized in that: Screw rods (19) are fixedly provided on the inner walls of the left and right sides of the experimental box (1), and a screw tube (20) is provided on the screw rods (19) through a threaded connection sleeve, and a positioning block (21) is fixedly provided at the inner end of the screw tube (20), and the positioning block (21) is contacted with the experimental box (5).

4. The corn seed drought tolerance test device according to claim 3, characterized in that: A rotating ring (22) is sleeved and fixed on the screw tube (20), and finger grooves are arranged at equal angles on the outer ring wall of the rotating ring (22).

5. The corn seed drought tolerance test device according to claim 1, characterized in that: The active component (15) comprises: A support block (15-1), wherein the support block (15-1) is fixedly arranged on the outer side wall of the experimental box (1), and the lower surface of the support block (15-1) is arranged on the same surface as the lower surface of the experimental box; a support frame (15-2) is arranged on the upper side of the support block (15-1), and the support frame (15-2) is arranged in a "U"-shaped structure, and the vertical end of the support frame (15-2) is connected to the side wall of the experimental box (1); A driving motor (15-3), wherein the driving motor (15-3) is two and is respectively fixedly arranged on the outer walls of the vertical ends of the front and rear sides of the support frame (15-2) through motor brackets; the driving motor (15-3) is connected to the control panel on the right side of the experimental box (1); the output shaft of the driving motor (15-3) passes through the support frame (15-2) and is arranged in the support frame (15-2); Transmission shafts (15-4), wherein two transmission shafts (15-4) are arranged in a front and rear position relative to each other in the support frame (15-2), and one end of the transmission shaft (15-4) is rotationally connected to a vertical end of the support frame (15-2) via a bearing, and the transmission shaft (15-4) is transmission-connected to an output shaft of a drive motor (15-3) via a bevel gear assembly; Rotating gears (15-5), wherein there are two rotating gears (15-5), which are respectively sleeved and fixed on the transmission shaft (15-4); A driving tooth block (15-6), wherein the driving tooth block (15-6) is arranged between the front and rear two rotating gears (15-5), and teeth are arranged on both the front and rear sides of the driving tooth block (15-6), and the teeth are respectively arranged to mesh with the rotating gears (15-5); A connecting block (15-7), wherein the connecting block (15-7) is fixedly arranged on the upper side of the driving gear block (15-6), and the upper side of the connecting block (15-7) is connected to the movable block (14); A guide block (15-8), wherein the guide block (15-8) is fixedly arranged on the upper side of the support block (15-1), and the guide block (15-8) is inserted into the driving gear block (15-6).

6. The corn seed drought tolerance test device according to claim 1, characterized in that: The opening and closing assembly (18) comprises: A connecting tooth block (18-1), wherein the connecting tooth block (18-1) is fixedly arranged on the rear side of the guide frame (17), and the connecting tooth block (18-1) is contactingly arranged on the right side of the experimental box (1); A rotating member (18-2), the rotating member (18-2) being screwed together with a shaft and a bearing and arranged on the rear side of the test box (1), and the rotating member (18-2) being arranged on the left side of the water tank (7), and the upper side of the rotating member (18-2) being provided with umbrella-shaped teeth, and the umbrella-shaped teeth being meshed and arranged on the lower side of the connecting tooth block (18-1); A No. 1 connecting member (18-3), wherein the No. 1 connecting member (18-3) is fixedly arranged on the rear side of the rotating member (18-2); A rotating motor (18-4), wherein the rotating motor (18-4) is fixedly arranged on the rear side of the experimental box (1) via a motor bracket, and the rotating motor (18-4) is arranged on the lower side of the rotating member (18-2), and the rotating motor (18-4) is connected to the control panel on the right side of the experimental box (1); a second connecting member (18-5) is arranged on the rear output end of the rotating motor (18-4); A third connecting piece (18-6), wherein the third connecting piece (18-6) is hingedly arranged between the first connecting piece (18-3) and the second connecting piece (18-5) via a hinge shaft.

7. The corn seed drought tolerance test device according to claim 1, characterized in that: An upper perspective window (23) is provided in the movable cover (16).

8. The corn seed drought tolerance test device according to claim 1, characterized in that: A front perspective window (24) is provided in the box door (2), and a handle is also provided on the box door (2).

9. The corn seed drought tolerance test device according to claim 1, characterized in that: The extension tube (10) is sleeved with support plates (25) at equal intervals, and the rear side of the support plates (25) is aligned with the rear inner wall of the experimental box (1).

Images