A crop growth monitoring device

Abstract

The application discloses the technical fields of crop growth monitoring device, including protection box, the inside of protection box is equipped with air detector, the detection box top is equipped with the detection mechanism for detecting outside rain and snow or hail weather, the detection mechanism is used for automatically removing the interference detection of flying birds, the application is through in every time when encountering rainstorm or hail weather, first, the detection mechanism is used for automatically detecting rainstorm or hail in the air, makes the detection mechanism to drop fast, and in the process, the detection mechanism automatically detects and removes the flying birds and the like that may be mislaid on its top, so that the detection result is more accurate, the detection mechanism is driven by the telescopic mechanism air detector in the rainstorm or hail weather, and is automatically drawn into the protection box, and cooperates with the discharge mechanism and automatically extends the protection box to detect, thereby avoiding the extreme hail or rainstorm weather quickly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crop growth monitoring, in particular to a crop growth monitoring device. BACKGROUND

[0002] China is a large agricultural country, and the planting range of various crops is very wide. At the same time, various researches on improving crops are emerging in an endless stream. In order to ensure the growth state of crops, so as to provide reasonable care, real-time monitoring of crops is very important, especially the trial crops in the test field, which need real-time monitoring to obtain detailed data as experimental basis.

[0003] In the prior art, when the growth environment of crops is monitored, the temperature and humidity in the air are detected by using sensors. The sensors are often extended out of the detection device for a long time. When extreme weather such as heavy rain or hail occurs, the sensors are impacted by hail or are in a frozen environment for a long time, which can easily cause damage to the sensors, resulting in inaccurate detection results.

[0004] Based on this, the present application designs a crop growth monitoring device to solve the above problems. SUMMARY

[0005] The present application aims to provide a crop growth monitoring device to solve the problem that in the prior art, when the growth environment of crops is monitored, the temperature and humidity in the air are detected by using sensors. The sensors are often extended out of the detection device for a long time. When extreme weather such as heavy rain or hail occurs, the sensors are impacted by hail or are in a frozen environment for a long time, which can easily cause damage to the sensors, resulting in inaccurate detection results.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a crop growth monitoring device, comprising a protective box, an air detector is arranged inside the protective box, a detection mechanism for detecting external rain, snow or hail weather is arranged on the top of the protective box, the detection mechanism is used for automatically excluding interference detection of flying birds, a telescopic mechanism for driving the air detector to extend or retract is arranged inside the protective box, the telescopic mechanism cooperates with the detection mechanism to automatically retract the air detector in heavy rain or hail weather and automatically extend the air detector when the heavy rain or hail weather stops, and a discharge mechanism for discharging hail or rain is arranged on the top of the protective box; the detection mechanism comprises a plurality of gas springs, the top ends of the gas springs are fixedly connected to the top of the protective box, a detection basket is fixedly connected to the top ends of the gas springs, a top rod is slidably connected to the middle of the detection basket, the top rod penetrates through the protective box and is slidably connected thereto, a lifting plate is fixedly connected to the bottom of the top rod, two first sliding rods are fixedly connected to the top of the lifting plate, the first sliding rods penetrate through the protective box and are slidably connected thereto, an L-shaped pull plate is fixedly connected to the bottom of the detection basket, the L-shaped pull plate is slidably connected to the protective box, the L-shaped pull plate is used for pulling the lifting plate to reset, the top ends of the first sliding rods are different in height from the detection basket, a rotating mechanism for rotating and removing flying birds falling in the detection basket is arranged inside the detection basket, two positioning mechanisms for positioning the first sliding rods are connected to the top of the protective box, and the positioning mechanisms are separated from the first sliding rods after the rotating mechanism rotates and detects.

[0007] The rotating mechanism comprises a first rotating ring, the first rotating ring is rotatably connected to the top surface of the detection basket, a first screw rod is fixedly connected to the top end of the top rod, a threaded sleeve is threadedly connected to the outer surface of the first screw rod, four swing rods are fixedly connected to the outer surface of the threaded sleeve, and the swing rods are fixedly connected to the first rotating ring through a first fixed rod.

[0008] The positioning mechanism comprises a positioning rod, a first connecting plate is fixedly connected to the top of the protective box, the positioning rod is slidably connected to the inside of the first connecting plate, the positioning rod is inserted into the first sliding rod and is slidably connected thereto, a first stop disc is fixedly connected to the outer surface of the first sliding rod, a first spring is sleeved on the outer surface of the first sliding rod and located between the first stop disc and the first connecting plate, and a pulling-out mechanism for pulling out the positioning rod when the swing rod rotates by 90° is connected to the inside of the detection basket.

[0009] The pulling-out mechanism comprises a first extrusion block, the first extrusion block is fixedly connected to the outer end of the first sliding rod, a rectangular long strip is slidably connected inside the detection basket, a second spring is fixedly connected to the bottom of the rectangular long strip, the second spring is fixedly connected to the top of the protection box, a pushing block is fixedly connected to the top of the rectangular long strip, the pushing block is used for acting with the swing rod, an L-shaped connecting frame is fixedly connected to the side wall of the rectangular long strip, a second extrusion block is fixedly connected to the bottom of the L-shaped connecting frame, and the second extrusion block is used for extruding the first extrusion block to move outward;

[0010] The telescopic mechanism comprises a first gear rack, the first gear rack is fixedly connected to the bottom of the lifting plate, a second screw rod is fixedly connected to the rear end of the air detector, two second fixed plates are fixedly connected to the inner bottom surface of the protection box, the second screw rod is slidably connected to the inner side of the two second fixed plates, a gear is rotatably connected to the front side wall of the rear second fixed plate, the gear is engaged with the first gear rack, and the gear is threadedly connected with the second screw rod;

[0011] The discharging mechanism comprises two heating plates, the two heating plates are fixedly connected to the top of the protection box, and a telescopic drain pipe is fixedly connected to the bottom of the detection basket;

[0012] The bottom end of the drain pipe penetrates through the protection box and is located above the air detector, a partition plate is fixedly connected to the inner side wall of the protection box, an electric cylinder is fixedly connected to the front side wall of the partition plate, a sealing plate is fixedly connected to the right end of the electric cylinder, the sealing plate is used for sealing the bottom of the drain pipe, a plurality of drain holes are formed in the front bottom of the protection box, and the drain holes are located in front of the partition plate;

[0013] The bottom of the protection box is fixedly connected with an adjusting cylinder, and the bottom end of the adjusting cylinder is fixedly connected with a stable base.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1. The detection mechanism can automatically detect rainstorms or hail in the air every time it encounters rainstorms or hail, so that the detection mechanism can quickly descend, and the detection mechanism can automatically detect and exclude flying birds and the like that may fall on the top of the detection mechanism during the process, so that the detection result is more accurate, the detection mechanism can drive the air detector to retract into the protection box in the rainstorm or hail weather through the telescopic mechanism, so that the air detector can avoid being damaged by continuous impact in the hail or rainstorm weather, and the protection box can automatically extend to detect, so that the detection mechanism can quickly avoid extreme hail or rainstorm weather.

[0016] 2. The present application is through in the outside world hail or heavy rain, rain or hail will quickly fall in the detection basket collection, so that the rain or hail in the detection basket side more and more, its gravity is more and more big, detection basket to the down pressure air spring, detection basket along the top rod down, detection basket drive its top first swivel pull four swing rod synchronous down, make the threaded sleeve along the first screw down, and drive four swing rod first rotation makes four swing rod in the detection basket for circumferential rotation, if the birds fall in the detection basket at this time, the swing rod will be prompted to make it leave the detection basket, thereby effectively avoiding the birds fall in the detection basket top, the emergence of false detection.

[0017] 3. The present application is through in the swing rod rotation, detection frame has dropped a certain distance, but not with the first slide bar contact, swing rod extrusion push block down, push block drive rectangular long down, compression second spring, rectangular long through L type connecting frame drive second extrusion block down, extrusion first extrusion block, push first extrusion block and positioning rod to the outside, make the positioning rod pull out the first slide bar, detection basket continue to move down, detection basket bottom extrusion two first slide bar, make the first slide bar and lifting plate together down, effect telescopic mechanism, make telescopic mechanism retract air detector, when the extreme weather stop, the rain or hail in the detection basket is discharged, its gravity detection, similarly, under the action of air spring rise, slow reset, detection basket through L type pull plate drive lifting plate and first slide bar reset, lifting plate drive telescopic mechanism reset, again stretch out air detector, thereby realize self detection discharge birds influence, and can automatically detect heavy rain or hail weather, drive air detector retract the purpose. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the first perspective view of the overall structure of the present application;

[0019] Figure 2 is the second perspective view of the overall structure of the present application;

[0020] Figure 3 is the inside structure diagram of the detection basket of the present application;

[0021] Figure 4 is the first perspective view of the inside structure of the protective box of the present application;

[0022] Figure 5 is the second perspective view of the inside structure of the protective box of the present application;

[0023] Figure 6 is the telescopic mechanism structure diagram of the bottom of the detection basket of the present application;

[0024] Figure 7 is the positioning mechanism structure diagram of the top of the protective box of the present application;

[0025] Figure 8 For Figure 7 The structure of A in the middle is enlarged.

[0026] In the drawings, the components represented by each reference numeral are listed as follows: protective box 1, air detector 2, gas spring 3, detection basket 4, top rod 5, lifting plate 6, first sliding rod 7, L-shaped pull plate 8, first rotating ring 9, first screw 10, threaded sleeve 11, swing rod 12, first fixed rod 13, positioning rod 14, first connecting plate 15, first baffle 16, first spring 17, first extrusion block 18, rectangular long strip 19, second spring 20, push block 21, L-shaped connecting frame 22, second extrusion block 23, first rack 24, second screw 25, second fixed plate 26, gear 27, heating plate 28, drain pipe 29, partition plate 30, electric cylinder 31, sealing plate 32, drain hole 33, adjusting cylinder 34, stable base 35. DETAILED DESCRIPTION

[0027] Please refer to Figures 1 to 8 The present application provides a technical solution: a crop growth monitoring device, comprising a protective box 1, the inner side of the protective box 1 is provided with an air detector 2, the top of the protective box 1 is provided with a detection mechanism for detecting external rain, snow or hail weather, the detection mechanism is used for automatically excluding interference detection of flying birds, the inner side of the protective box 1 is provided with a telescopic mechanism for driving the air detector 2 to extend or retract, the telescopic mechanism cooperates with the detection mechanism to make the air detector 2 automatically retract in heavy rain or hail weather, and automatically extend when the heavy rain or hail weather stops, the top of the protective box 1 is provided with an exhaust mechanism for discharging hail or rain;

[0028] The device is placed in the crops to be detected, and the air detector 2 is pushed out of the protection box 1 by the telescopic mechanism, so that the air detector 2 is located in the environment where the crops grow, facilitating the air detector 2 to better and more thoroughly detect the crops. When it rains or hails, the rain or hail will quickly fall on the top of the detection mechanism. The detection mechanism automatically detects whether it is a bird or rain or hail. If it is a bird, the detection mechanism automatically removes the bird to avoid misjudgment. When the detection mechanism detects that it is indeed a rain or hail weather, the detection mechanism drives the air detector 2 to retract into the protection box 1 through the telescopic mechanism, avoiding damage to the air detector 2 in the hail or snowstorm. The rain or hail in the detection mechanism is slowly melted and discharged by the discharge mechanism. The discharge speed is much slower than the increasing speed of the rain or hail in the detection mechanism. When the rain or hail stops, the discharge mechanism continues to discharge slowly. At this time, the amount of rain or hail in the detection mechanism no longer increases, but the discharge mechanism is still discharging, so that the weight of the rain or hail in the detection mechanism decreases, thereby automatically detecting the stop of the rain or hail weather. The discharge mechanism slowly discharges the rain and hail, which can provide a certain buffer time to avoid misjudgment of the detection. When the detection mechanism rises and resets, the air detector 2 is extended out of the protection box 1 by the telescopic mechanism to monitor the air, so that the detection mechanism can automatically detect the rain or hail in the air when it encounters rain or hail weather, so that the detection mechanism quickly descends, and the detection mechanism automatically detects and removes the birds that may fall on the top during the process, avoiding misjudgment and making the detection result more accurate. The detection mechanism drives the air detector 2 to retract into the protection box 1 in the rain or hail weather through the telescopic mechanism, avoiding damage to the air detector 2 in the hail or rainstorm. The discharge mechanism automatically extends out of the protection box 1 for detection, thereby automatically avoiding extreme hail or rainstorm weather.

[0029] As a further scheme of the present application, the detection mechanism comprises a plurality of air springs 3, the plurality of air springs 3 are fixedly connected to the top of the protection box 1, the top ends of the plurality of air springs 3 are fixedly connected with a detection basket 4, the detection basket 4 is slidably connected with a top rod 5, the top rod 5 penetrates through the protection box 1 and is slidably connected with the protection box 1, the bottom of the top rod 5 is fixedly connected with a lifting plate 6, the top of the lifting plate 6 is fixedly connected with two first sliding rods 7, the two first sliding rods 7 penetrate through the protection box 1 and are slidably connected with the protection box 1, the bottom of the detection basket 4 is fixedly connected with an L-shaped pull plate 8, the L-shaped pull plate 8 is slidably connected with the protection box 1, the L-shaped pull plate 8 is used for pulling the lifting plate 6 to reset, the top ends of the two first sliding rods 7 are different in height from the detection basket 4, the inside of the detection basket 4 is provided with a rotating mechanism for rotating and removing the flying birds falling in the detection basket 4, the top of the protection box 1 is connected with two positioning mechanisms respectively used for positioning the two first sliding rods 7, and the positioning mechanisms are separated from the first sliding rods 7 after the rotating mechanism rotates and detects is completed;

[0030] The rotating mechanism comprises a first rotating ring 9, the first rotating ring 9 is rotatably connected to the top surface of the detection basket 4, the top end of the top rod 5 is fixedly connected with a first screw rod 10, the outer surface of the first screw rod 10 is threadedly connected with a threaded sleeve 11, the outer surface of the threaded sleeve 11 is fixedly connected with four swing rods 12, and the four swing rods 12 are fixedly connected with the first rotating ring 9 through a first fixed rod 13;

[0031] The positioning mechanism comprises a positioning rod 14, the top of the protection box 1 is fixedly connected with a first connecting plate 15, the positioning rod 14 is slidably connected in the inside of the first connecting plate 15, the positioning rod 14 is inserted into the inside of the first sliding rod 7 and is slidably connected with the first sliding rod 7, the outer surface of the first sliding rod 7 is fixedly connected with a first stop disc 16, the outer surface of the first sliding rod 7 is sleeved with a first spring 17 located between the first stop disc 16 and the first connecting plate 15, and the inside of the detection basket 4 is connected with a pulling-out mechanism used for pulling out the positioning rod 14 when the swing rod 12 rotates by 90°;

[0032] The pulling-out mechanism comprises a first extrusion block 18, the first extrusion block 18 is fixedly connected to the outer end of the first sliding rod 7, the inside of the detection basket 4 is slidably connected with a rectangular strip 19, the bottom end of the rectangular strip 19 is fixedly connected with a second spring 20, the second spring 20 is fixedly connected to the top of the protection box 1, the top of the rectangular strip 19 is fixedly connected with a pushing block 21, the pushing block 21 is used for acting on the swing rod 12, the side wall of the rectangular strip 19 is fixedly connected with an L-shaped connecting frame 22, the bottom of the L-shaped connecting frame 22 is fixedly connected with a second extrusion block 23, and the second extrusion block 23 is used for extruding the first extrusion block 18 to move outward;

[0033] When working, since the detection mechanism needs to detect the rainstorm or hail outside by itself, when the rainstorm or hail outside, the rain or hail will quickly fall into the detection basket 4 and gather, so that the rain or hail inside the detection basket 4 is more and more, and its gravity is more and more great, the detection basket 4 extrudes the air spring 3 downward, the detection basket 4 moves downward along the top rod 5, the detection basket 4 drives the first rotating ring 9 at the top thereof to pull the four swing rods 12 to move downward synchronously, the threaded sleeve 11 moves downward along the first screw rod 10, and the four swing rods 12 are first rotated to make the four swing rods 12 rotate in a circle in the detection basket 4. If the birds fall on the top of the detection basket 4 at this time, the swing rods 12 will push the birds to make them leave the detection basket 4, so as to effectively avoid the birds falling on the top of the detection basket 4 and causing false detection.

[0034] When the swing rod 12 rotates by 90°, the detection frame has descended by a certain distance, but has not contacted the first slide rod 7, the swing rod 12 extrudes and pushes the pushing block 21 downward, the pushing block 21 drives the rectangular long strip 19 to move downward, compresses the second spring 20, the rectangular long strip 19 drives the second extrusion block 23 to move downward through the L-shaped connecting frame 22, extrudes the first extrusion block 18, pushes the first extrusion block 18 and the positioning rod 14 outward, makes the positioning rod 14 pull out the first slide rod 7, the detection basket 4 continues to move downward, the bottom of the detection basket 4 extrudes the two first slide rods 7, makes the first slide rod 7 and the lifting plate 6 move downward together, acts on the telescopic mechanism, makes the telescopic mechanism retract the air detector 2, when the extreme weather stops, the rain or hail in the detection basket 4 is discharged, and its gravity is detected, and in the same way, under the action of the air spring 3, it rises and slowly resets, the detection basket 4 drives the lifting plate 6 and the first slide rod 7 to reset through the L-shaped pulling plate 8, the lifting plate 6 drives the telescopic mechanism to reset, and the air detector 2 is stretched out again, so as to realize self-detection and discharge of the influence of the birds, and can automatically detect the rainstorm or hail weather, drive the air detector 2 to retract.

[0035] As a further scheme of the present application, the telescopic mechanism comprises a first rack 24 fixedly connected to the bottom of the lifting plate 6, a second screw 25 fixedly connected to the rear end of the air detector 2, two second fixed plates 26 fixedly connected to the inner bottom surface of the protective box 1, the second screw 25 slidingly connected to the inner side of the two second fixed plates 26, a gear 27 rotatably connected to the front side wall of the rear second fixed plate 26, the gear 27 engaged with the first rack 24, and the gear 27 threadedly connected with the second screw 25; in operation, in order to retract the air detector 2 when descending and extend it when ascending, the first rack 24 is driven to move downward synchronously when the lifting plate 6 descends, the first rack 24 drives the gear 27 to rotate, the gear 27 is rotatably connected to the second fixed plate 26, the second screw 25 is threadedly connected to the inner side of the gear 27, thereby driving the second screw 25 to move to the rear side, the second screw 25 drives the air detector 2 to retract, and in the same way, the air detector 2 is extended reversely when the lifting plate 6 ascends, thereby achieving the purpose of driving the air detector to retract and extend.

[0036] As a further scheme of the present application, the discharge mechanism comprises two heating plates 28 fixedly connected to the top of the protective box 1, and a telescopic drain pipe 29 fixedly connected to the bottom of the detection basket 4; in operation, in order to extend the air detector 2 automatically when the rainstorm or hail stops, and continue to monitor, the two heating plates 28 are started to continuously heat the detection basket 4, so that the hail or rainstorm snow falling into the detection basket 4 is melted, and the melted water is slowly discharged from the drain pipe 29, thereby continuously discharging the stored rainstorm or hail in the detection basket 4 after the rainstorm or hail stops, and achieving the purpose of automatically resetting the detection mechanism when the rainstorm or hail stops.

[0037] As a further scheme of the present application, the bottom end of the drain pipe 29 penetrates through the protective box 1 and is located above the air detector 2, a partition plate 30 is fixedly connected to the inner side wall of the protective box 1, an electric cylinder 31 is fixedly connected to the front side wall of the partition plate 30, a sealing plate 32 is fixedly connected to the right end of the electric cylinder 31, the sealing plate 32 is used to seal the bottom of the drain pipe 29, a plurality of drain holes 33 are formed in the front side of the partition plate 30; in operation, the telescopic pipe is arranged in the protective box 1 and above the air detector 2, when the air detector 2 is retracted, the electric cylinder 31 drives the sealing plate 32 to separate from the drain pipe 29, the rainwater flowing out of the drain pipe 29 can continuously flush the air detector 2, so as to avoid the influence of dust or stains remaining in the air on the detection result when the air detector 2 stays in the air for a long time, the partition plate 30 is used to protect the telescopic mechanism and the storage battery in the protective box 1 from the rainwater, and the drain holes 33 are used to discharge the flushing rainwater.

[0038] As a further scheme of the present application, the protection box 1 is fixedly connected with an adjusting cylinder 34 at the bottom, and the bottom end of the adjusting cylinder 34 is fixedly connected with a stable base 35; in operation, since the heights of different crops are different, the content of air in different heights needs to be monitored, the whole detection device is stabilized by fixing the stable base on the bottom surface, and the height of the protection box 1 is adjusted by the adjusting cylinder 34, so as to meet the detection purpose of different heights.

Claims

1. A crop growth monitoring device comprising a protective case (1), characterised in that: The protection box (1) is internally provided with an air detector (2), the top of the protection box (1) is provided with a detection mechanism for detecting external rain, snow or hail weather, the detection mechanism is used for automatically excluding bird interference detection, the inside of the protection box (1) is provided with a telescopic mechanism for driving the air detector (2) to extend or retract, the telescopic mechanism cooperates with the detection mechanism to make the air detector (2) automatically retract in the rainstorm or hail weather, and automatically extend when the rainstorm or hail weather stops, and the top of the protection box (1) is provided with an exhaust mechanism for discharging hail or rainwater; The detection mechanism comprises a plurality of gas springs (3), the plurality of gas springs (3) are fixedly connected at the top of the protection box (1), a plurality of top ends of the gas springs (3) are fixedly connected with a detection basket (4), the detection basket (4) is slidably connected with a top rod (5) at the middle portion, the top rod (5) penetrates through the protection box (1) and is slidably connected with the protection box (1), the bottom of the top rod (5) is fixedly connected with a lifting plate (6), the top of the lifting plate (6) is fixedly connected with two first sliding rods (7), the two first sliding rods (7) penetrate through the protection box (1) and are slidably connected with the protection box (1), the bottom of the detection basket (4) is fixedly connected with an L-shaped pull plate (8), the L-shaped pull plate (8) is slidably connected with the protection box (1), and the L-shaped pull plate (8) is used for pulling the lifting plate (6) to reset; the top ends of the two first sliding rods (7) are different in height from the detection basket (4), the inside of the detection basket (4) is provided with a rotating mechanism for rotating and removing birds falling in the detection basket (4), and the top of the protection box (1) is connected with two positioning mechanisms for positioning the two first sliding rods (7) respectively; the positioning mechanisms are separated from the first sliding rods (7) after the rotating mechanism rotates and detects; The rotating mechanism comprises a first rotating ring (9), the first rotating ring (9) is rotatably connected to the top surface of the detection basket (4), the top end of the top rod (5) is fixedly connected with a first screw rod (10), the outer surface of the first screw rod (10) is threadedly connected with a threaded sleeve (11), the outer surface of the threaded sleeve (11) is fixedly connected with four swing rods (12), and the four swing rods (12) are fixedly connected with the first rotating ring (9) through a first fixing rod (13); The positioning mechanism comprises a positioning rod (14), the top of the protection box (1) is fixedly connected with a first connecting plate (15), the positioning rod (14) is slidably connected in the first connecting plate (15), the positioning rod (14) is inserted into the first sliding rod (7) and slidably connected with the first sliding rod (7), the outer surface of the first sliding rod (7) is fixedly connected with a first baffle (16), the outer surface of the first sliding rod (7) is sleeved with a first spring (17) located between the first baffle (16) and the first connecting plate (15), and the inside of the detection basket (4) is connected with an extracting mechanism for extracting the positioning rod (14) when the swing rod (12) rotates by 90°; The pulling mechanism comprises a first extrusion block (18) fixedly connected to the outer end of the first sliding rod (7), a rectangular long strip (19) slidably connected inside the detection basket (4), a second spring (20) fixedly connected to the top of the protection box (1) and fixedly connected to the bottom end of the rectangular long strip (19), a push block (21) fixedly connected to the top of the rectangular long strip (19) and used for acting on the swing rod (12), an L-shaped connecting frame (22) fixedly connected to the side wall of the rectangular long strip (19), and a second extrusion block (23) fixedly connected to the bottom of the L-shaped connecting frame (22) and used for extruding the first extrusion block (18) to move outward.

2. The crop growth monitoring device of claim 1, wherein: The telescopic mechanism comprises a first rack (24) fixedly connected to the bottom of the lifting plate (6), a second screw rod (25) fixedly connected to the rear end of the air detector (2), two second fixed plates (26) fixedly connected to the inner bottom surface of the protection box (1), the second screw rod (25) slidably connected to the inner side of the two second fixed plates (26), a gear (27) rotatably connected to the front side wall of the second fixed plate (26) on the rear side, the gear (27) engaged with the first rack (24), and the gear (27) threadedly connected with the second screw rod (25).

3. The crop growth monitoring device of claim 1, wherein: The discharge mechanism comprises two heating plates (28) fixedly connected to the top of the protection box (1), and a telescopic drain pipe (29) fixedly connected to the bottom of the detection basket (4).

4. A crop growth monitoring apparatus as claimed in claim 3, wherein: The bottom end of the drain pipe (29) penetrates through the protection box (1) and is located above the air detector (2), a partition plate (30) is fixedly connected to the inner side wall of the protection box (1), an electric cylinder (31) is fixedly connected to the front side wall of the partition plate (30), a sealing plate (32) is fixedly connected to the right end of the electric cylinder (31), the sealing plate (32) is used for sealing the bottom of the drain pipe (29), a plurality of drain holes (33) are formed in the front bottom of the protection box (1), and the drain holes (33) are located in front of the partition plate (30).

5. The crop growth monitoring device of claim 1, wherein: A regulating cylinder (34) is fixedly connected to the bottom of the protection box (1), and a stable base (35) is fixedly connected to the bottom end of the regulating cylinder (34).

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