Monitoring equipment for farm and pasture environment

Abstract

The invention relates to a monitoring device for a farm environment, and belongs to the technical field of environment monitoring, the monitoring device comprises a box body, the front surface of the box body is provided with a warning assembly, the interiors of the upper and lower walls of the box body are fixedly provided with fixed cylinders extending to the outer side of the box body, and the interiors of the fixed cylinders are slidably connected with lifting cylinders; an opening and closing assembly is arranged on the inner side of the lifting cylinder. According to the monitoring equipment for the agricultural and pastoral environment, internal components are integrally wrapped by arranging the closed box body, in the using process, only equipment such as a monitoring sensor makes contact with circulating air, and then a lifting assembly is additionally arranged to control an opening and closing assembly to seal a monitoring pipeline; in this way, when the external environment is severe and does not need to be monitored, the monitoring pipeline is closed, components are prevented from making continuous contact with the external severe environment or the environment with the too high humidity when not needing to work, meanwhile, continuous monitoring of part of the components is kept, and therefore the service life of equipment is prolonged to a certain degree.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental monitoring, and in particular to a monitoring device for farm and pasture environments. Background Art

[0002] Farmland environmental monitoring equipment is a special device that collects and analyzes farmland environmental parameters in real time, such as temperature and humidity, light, soil moisture, gas concentration, etc. Its core goal is to provide accurate data support for agricultural production and animal husbandry, optimize resource utilization efficiency, ensure the suitability of the environment for plant and animal growth, and promote the sustainable development of agriculture and animal husbandry.

[0003] Chinese patent publication number CN116734928B discloses a stable farm environment monitoring device, including a mobile frame, a battery is provided at the bottom of the mobile frame, a drive wheel and a steering wheel are provided at the bottom of the mobile frame, the drive wheel and the steering wheel are arranged in a triangle, a control panel is provided inside the mobile frame, a monitoring frame is provided on the mobile frame, a temperature and humidity sensor is provided on the monitoring frame, a mounting frame is provided on the temperature and humidity sensor, a wind direction sensor and a wind speed sensor are provided on the mounting frame, an image collector is provided on the mobile frame, the image collector is connected to a pitch adjustment mechanism, the pitch adjustment mechanism is connected to a lifting mechanism, and a base adjustment mechanism is provided between the lifting mechanism and the mobile frame.

[0004] This invention installs the image collector by setting up a pitch adjustment mechanism, a lifting mechanism and a base adjustment mechanism, and combines it with a monitoring frame to monitor and collect various data on farms and ranches. Although it solves the problems existing in the current farm and ranch environmental data monitoring equipment to a certain extent, since the internal components of the equipment are not isolated from the external environment during operation during use, and the air environment of the farm and ranch is relatively complex, the internal components are easily damaged, which increases the equipment failure rate, reduces the service life of the equipment, and increases the maintenance cost of farm and ranch monitoring. Therefore, a monitoring device for farm and ranch environment is proposed. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a monitoring device for farm and ranch environments, which has the advantages of good stability and low maintenance costs. It solves the problem that the components of the monitoring equipment are directly exposed to the relatively complex farm and ranch air environment, making the components extremely susceptible to damage and increasing the equipment failure rate.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a monitoring device for a farmland environment, comprising a box body, a warning assembly provided on the front of the box body, a fixed cylinder extending to the outside of the box body fixed to the interior of the upper and lower walls of the box body, and a lifting cylinder slidably connected to the interior of the fixed cylinder; An opening and closing assembly is provided on the inner side of the lifting cylinder, and a group of monitoring assemblies are provided on the left and right sides of the fixed cylinder located inside the box body. A limiting ring is fixed to the inner side wall of the box body, and a rotating assembly for controlling the monitoring angle is provided on the inner side of the limiting ring. A lifting assembly for height adjustment is provided on the opposite side of the two lifting cylinders, and an air intake box is fixed at one end of the two fixed cylinders located outside the box body. A plurality of air inlet and outlet holes are provided on the surface of the air intake box close to the box body. A monitoring assembly is provided on the outside of the box body, and a fixing assembly is provided on the back of the box body.

[0007] Furthermore, the warning component includes a data display screen fixed on the front of the box, and the front of the box is provided with a warning light and a siren for alarm reminders.

[0008] Furthermore, the fixed cylinder is a double-layer U-shaped structure cylinder, and the lifting cylinder is a W-shaped structure cylinder. The lifting cylinder is vertically embedded in the interior of the fixed cylinder along the opening of the fixed cylinder located outside the box body, and is slidingly connected to the fixed cylinder. The inner walls of the fixed cylinder and the lifting cylinder are both provided with gas grids for air supply.

[0009] Furthermore, the opening and closing assembly includes an air guide tube slidably connected to the inside of the lifting cylinder, and fixed rods are slidably connected to the inside of the opposite walls of the two lifting cylinders, and a closing plate is fixed to the opposite side of the fixed rods. The end of the air guide tube close to the closing plate and the outer side of the closing plate are provided with mutually cooperating locking wedges, and the outer side of the fixing rod is provided with a return spring with both ends fixedly mounted to the closing plate and the lifting cylinder respectively.

[0010] Furthermore, the monitoring component includes a monitoring pipe fixed on the side of the fixed cylinder. The monitoring pipe is a ring-shaped structure, and the upper and lower sides are respectively connected to the cavities at the opposite ends of the two fixed cylinders. A monitoring chamber is provided at the central axis position of the monitoring pipe, and an air guide fan is fixed inside the monitoring chamber. Monitoring sensors are fixed on the opposite sides of the front and rear monitoring chambers.

[0011] Furthermore, the rotating assembly includes an annular frame rotatably connected to the inner wall of the limiting ring, a rotating motor is fixed to the side of the limiting ring, a rotating gear ring is fixed to the top of the annular frame, and a driving gear is fixed to the output shaft of the rotating motor, and the driving gear is engaged with the rotating gear ring.

[0012] Furthermore, the lifting assembly includes a limit block fixed on the inner side of the annular frame, a lifting motor is fixed on the upper surface of the limit block, racks are fixed on one side of the two lifting cylinders close to the limit block, the two racks vertically pass through the limit block and are slidably connected to the limit block, the two racks are symmetrically distributed along the central axis of the lifting motor, the output shaft of the lifting motor is fixed with a working gear meshing with the racks on both sides, and the side surface of one end of the fixed rod located on the outside of the lifting cylinder is slidably connected to the rack on the other lifting cylinder.

[0013] Furthermore, the air duct vertically penetrates the air intake box and extends to the outside of the opposite ends of the two air intake boxes, and is rotatably connected to the air intake boxes through bearings. The side wall of the air duct located inside the air intake box is provided with an air intake grille, and filter cotton is placed inside the air intake box.

[0014] Furthermore, the monitoring component includes a humidity monitoring module fixed on the inner wall of the air intake box and parallel to the air intake grille, a sound monitoring module is fixed on the outside of the air intake box, a monitoring camera and an infrared camera are fixed at the ends of the upper and lower air ducts on opposite sides, respectively, and a wind monitoring module is fixed on the top of the box.

[0015] Furthermore, the fixing assembly includes a fixing frame fixed to the back of the box body, an electric lifting rod is fixed to the bottom of the fixing frame, and a mounting seat is fixed to the bottom of the electric lifting rod.

[0016] Compared with the existing technology, the technical solution of this application has the following beneficial effects: 1. The monitoring equipment used for farm and ranch environments wraps the internal components as a whole by setting up a closed box. During use, only monitoring sensors and other equipment are in contact with the circulating air. An additional lifting component is set to control the opening and closing component to close the monitoring pipeline. In this way, when the external environment is relatively harsh and monitoring is not required, the monitoring pipeline will be closed to prevent the components from being in continuous contact with the harsh external environment or excessive humidity when no operation is required. At the same time, some components are kept under continuous monitoring, thereby improving the service life of the equipment to a certain extent.

[0017] 2. The monitoring equipment for farm and ranch environments sets the monitoring components and the monitoring module inside and outside the box respectively. When the monitoring component is not needed, it is closed separately and the monitoring component continues to operate. At the same time, the rotating component inside the box cooperates with the sound detection module outside the box to quickly respond to the current farm and ranch situation, thereby realizing real-time monitoring of the farm and ranch situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the box body of the present invention; Figure 3 It is a transverse cross-sectional view of the present invention; Figure 4 For the present invention Figure 3 A magnified view of the structure in the middle; Figure 5 A three-dimensional diagram of the monitoring assembly of the present invention; Figure 6This is a three-dimensional diagram of the connection between the annular frame, the rotating gear ring and the lifting assembly of the present invention; Figure 7 This is an exploded view of the fixed cylinder and the lifting cylinder of the present invention.

[0019] In the figure: 1 box, 2 warning component, 21 data display screen, 22 warning light, 23, alarm 3 fixing cylinder, 4 lifting cylinder, 5 opening and closing component, 51 air guide tube, 511 air intake grille, 52 fixing rod, 53 closing plate, 54 return spring, 6 monitoring component, 61 monitoring pipeline, 62 monitoring chamber, 63 monitoring sensor, 7 limit ring, 8 rotating component, 81 ring frame, 82 rotating motor, 83 rotating gear ring, 9 lifting component, 91 limit block, 92 lifting motor, 93 rack, 10 air intake box, 11 monitoring component, 111 humidity monitoring module, 112 sound monitoring module, 113 monitoring camera, 114 infrared camera, 115 wind monitoring module, 12 fixing component, 121 fixing frame, 122 electric lifting rod, 123 mounting base. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 4 In this embodiment, a monitoring device for a farm environment includes a box body 1, a warning component 2 is provided on the front of the box body 1, and fixed cylinders 3 extending to the outside of the box body 1 are fixed inside the upper and lower walls of the box body 1, and a lifting cylinder 4 is slidably connected inside the fixed cylinder 3.

[0022] In this embodiment, an opening and closing component 5 is provided on the inner side of the lifting cylinder 4, and a group of monitoring components 6 are provided on the left and right sides of the fixed cylinder 3 located inside the box body 1. A limiting ring 7 is fixed to the inner wall of the box body 1, and a rotating component 8 for controlling the monitoring angle is provided on the inner side of the limiting ring 7. A lifting component 9 for height adjustment is provided on the opposite side of the two lifting cylinders 4, and an air intake box 10 is fixed at one end of the two fixed cylinders 3 located outside the box body 1. A plurality of air inlet and outlet holes are provided on the surface of the air intake box 10 close to the box body 1. A monitoring component 11 is provided on the outside of the box body 1, and a fixing component 12 is provided on the back of the box body 1.

[0023] In order to ensure the stability of the monitoring device during operation, the fixing assembly 12 in this embodiment includes a fixing frame 121 fixed to the back of the box 1, an electric lifting rod 122 is fixed to the bottom of the fixing frame 121, and a mounting base 123 is fixed to the bottom of the electric lifting rod 122.

[0024] It is understandable that by controlling the length of the electric lifting rod 122, the height of the box 1 can be adjusted, thereby adjusting the height position of the internal components according to actual use needs, and avoiding errors in the monitoring data due to sampling height to the greatest extent.

[0025] In order to promptly remind users when data anomalies occur during the monitoring process, the warning component 2 in this embodiment includes a data display screen 21 fixed on the front of the box 1, and a warning light 22 and an alarm 23 for alarm reminders are provided on the front of the box 1.

[0026] It should be noted that a sealing plate is provided on the front of the box 1, which can be disassembled. The data display screen 21, the warning light 22 and the alarm 23 are all provided on the front of the sealing plate and are electrically connected to the main control module inside the box 1. In addition, the material used to make the box 1 has good thermal conductivity, which can quickly transfer the heat generated inside the box 1 to the environment.

[0027] In order to monitor the current environmental conditions in real time, the monitoring component 11 in this embodiment includes a humidity monitoring module 111 fixed to the inner wall of the air intake box 10 and parallel to the air intake grille 511. The humidity monitoring module 111 monitors the humidity content of the air entering the air intake box 10. A sound monitoring module 112 is fixed to the outside of the air intake box 10. The sound monitoring module 112 records the current sounds of livestock and the environment in real time. A monitoring camera 113 and an infrared camera 114 are respectively fixed to the ends of the upper and lower air ducts 51 on opposite sides. The infrared camera 114 has an infrared thermal imaging module integrated inside to support simultaneous temperature measurement of multiple targets. A wind monitoring module 115 is fixed to the top of the box 1.

[0028] It should be noted that the humidity monitoring module 111 can use humidity monitoring sensors including but not limited to SHT30, HIH-4030 and AM2320 to monitor the current air humidity in real time. The sound monitoring module 112 includes multiple MEMS microphones distributed in a circular array on the side of the air intake box 10. The specific models of MEMS microphones include but are not limited to STMicroelectronics MP34DT05. The selection points need to support sound source positioning so that the sound monitoring module 112 can monitor the source direction of the sound, and cooperate with the rotating component 8 to rotate to a specified angle to achieve the purpose of adjusting the monitoring angle of the monitoring camera 113 and the infrared camera 114, and check the direction of the abnormality. The wind monitoring module 115 can select an ultrasonic anemometer and a mechanical anemometer according to actual usage needs to measure the current air circulation conditions in real time.

[0029] See also Figure 7In order to achieve the effect of controlling the isolation between the inside and the outside, the fixed cylinder 3 in this embodiment is a double-layer U-shaped structure cylinder, and the lifting cylinder 4 is a W-shaped structure cylinder. The lifting cylinder 4 is vertically embedded in the interior of the fixed cylinder 3 along the opening of the fixed cylinder 3 located outside the box body 1, and is slidably connected to the fixed cylinder 3. The inner walls of the fixed cylinder 3 and the lifting cylinder 4 are both provided with air supply grilles for air supply. The air supply grilles are provided so that the air entering the lifting cylinder 4 can smoothly enter the interior of the fixed cylinder 3. In addition, after the fixed cylinder 3 and the lifting cylinder 4 are completely nested, the communication between the fixed cylinder 3 and the monitoring component 6 can be secondary blocked.

[0030] See also Figure 3 、 Figure 4 and Figure 6 The outer side of the fixed rod 52 is provided with a return spring 54 whose two ends are fixedly mounted on the closing plate 53 and the lifting cylinder 4 respectively. The return spring 54 can reset the height position of the closing plate 53 and the fixing rod 52, and at the same time, push the fixing rod 52 to slide when the lifting cylinder 4 is raised or lowered.

[0031] It should be noted that the inner wall of the lifting cylinder 4 and the outer side of the air guide tube 51 are provided with vertical matching patterns, which make the air guide tube 51 only able to slide relative to the lifting cylinder 4 in the vertical direction. At the same time, the rotation of the lifting cylinder 4 can synchronously drive the air guide tube 51 to rotate.

[0032] In this embodiment, the air guide duct 51 vertically penetrates the air inlet box 10 and extends to the outside of the opposite ends of the two air inlet boxes 10, and is rotatably connected to the air inlet box 10 through a bearing. The air guide duct 51 is located on the side wall inside the air inlet box 10 and is provided with an air inlet grille 511. Filter cotton is placed inside the air inlet box 10. After the air entering the air inlet box 10 is removed by the filter cotton, it can smoothly pass through the air inlet grille 511 and enter the interior of the air guide duct 51.

[0033] It should be noted that the filter cotton can only intercept large particles of impurities in the air and cannot dry the air entering the air intake box 10. Secondly, the air intake box 10 consists of a hexagonal box body and six side panels, five of which are fixed on the sides of the hexagonal box body, and one side panel is hinged to the back of the hexagonal box body by a hinge. By pulling open the movable side panel, the filter cotton built into the air intake box 10 can be taken out and replaced.

[0034] See also Figure 5 In order to monitor the current content of harmful gases in the air of the farm in real time, the monitoring component 6 in this embodiment includes a monitoring pipe 61 fixed to the side of the fixed cylinder 3. The monitoring pipe 61 is a ring-shaped structure, and the upper and lower sides are respectively connected to the tube cavities at the opposite ends of the two fixed cylinders 3. A monitoring chamber 62 is provided at the central axis position of the monitoring pipe 61. An air guide fan is fixed inside the monitoring chamber 62. Monitoring sensors 63 are fixed on the opposite sides of the front and rear monitoring chambers 62. The monitoring probe of the monitoring sensor 63 is inserted into the interior of the monitoring chamber 62 to monitor the internal air flowing through the monitoring chamber 62 in real time.

[0035] It should be noted that the monitoring sensor 63 includes sensors such as ammonia, methane and hydrogen sulfide that can monitor the content of harmful gases in the air. Specific models include but are not limited to Bosch BME688. After the sensor detects that the harmful gas content exceeds the standard, it will promptly issue an excessive warning through the warning component 2.

[0036] Please refer again Figure 3 and Figure 6 In order to monitor the overall situation of the farm in real time, the rotating assembly 8 in this embodiment includes an annular frame 81 rotatably connected to the inner wall of the limiting ring 7, a rotating motor 82 is fixed to the side of the limiting ring 7, a rotating gear ring 83 is fixed to the top of the annular frame 81, and a driving gear is fixed to the output shaft of the rotating motor 82, which meshes with the rotating gear ring 83.

[0037] It should be noted that when the rotating motor 82 drives the rotating gear ring 83 to rotate through the driving gear, the annular frame 81 rotates inside the limiting ring 7, thereby driving the lifting assembly 9 to rotate as a whole, and then driving the lifting cylinder 4 to rotate through the rotating assembly 9, thereby achieving the purpose of adjusting the monitoring angle of the surveillance camera 113 and the infrared camera 114.

[0038] Please refer again Figure 6The two racks 93 are vertically passed through the limit block 91 and are slidably connected to the limit block 91. The two racks 93 are limited to the two sides of the lifting motor 92 by the limit block 91. The two racks 93 are symmetrically distributed along the central axis of the lifting motor 92. In this way, the rotation of the lifting motor 92 will drive the two racks 93 to move in an offset manner. The output shaft of the lifting motor 92 is fixed with a working gear meshing with the racks 93 on both sides. The side surface of one end of the fixed rod 52 located on the outside of the lifting cylinder 4 is slidably connected to the rack 93 on the other lifting cylinder 4. The relative movement of the two racks 93 will push the two lifting cylinders 4 away from each other.

[0039] It should be noted that a cavity is provided inside the limit block 91, and the output shaft of the lifting motor 92 passes through the side wall of the limit block 91 to the inside of the cavity. A working gear that meshes with the rack 93 is fixed on the outside of the output shaft of the lifting motor 92 located inside the cavity. The opposite sides of the two racks 93 are provided with tooth patterns used to cooperate with the working gears, and the opposite sides of the two racks 93 are slidably connected to the limit block 91.

[0040] The electrical components mentioned herein are all electrically connected to the controller and the power supply. The control method of the present invention is controlled by the controller. The control circuit of the controller can be implemented by simple programming by a person skilled in the art. The provision of power is also common knowledge in the art. The present invention is mainly used to protect mechanical devices, so the control method and circuit connection are not explained in detail in the present invention.

[0041] The working principle of the above embodiment is: (1) By starting the lifting motor 92 to rotate, the two racks 93 are driven to move in an offset manner, the rack 93 on the left side rises, and the rack 93 on the right side falls. The lifting and lowering of the two racks 93 push the two lifting cylinders 4 away from each other and the corresponding two fixed rods 52 closer to each other, so that the upper and lower fixed rods 52 squeeze the return spring 54 under the offset pull of the two racks 93 and contract, so that the closing plate 53 and the air guide tube 51 are separated. The separation of the closing plate 53 and the air guide tube 51 makes the monitoring pipe 61 and the fixed cylinder 3 and the cavity inside the lifting cylinder 4 connected. At the same time, the air guide fan inside the monitoring chamber 62 starts to work, driving the internal air of the monitoring pipe 61 A flow is formed, and the outside air enters the air inlet box 10 through the air inlet and outlet holes of the upper air inlet box 10, and after the humidity is monitored by the humidity monitoring module 111, it enters the interior of the device through the air inlet grille 511 of the upper air duct 51, and smoothly enters the upper lifting cylinder 4 along the air duct 51. The air inside the upper lifting cylinder 4 passes through the upper fixed cylinder 3 and enters the upper part of the monitoring pipe 61. After being monitored by the monitoring sensor 63, it enters the lower fixed cylinder 3 along the monitoring pipe 61, passes through the lower lifting cylinder 4, and escapes into the air from the air inlet and outlet holes of the lower air inlet box 10 along the lower air duct 51, thereby realizing the overall monitoring of the environmental data in the farm air.

[0042] (2) By starting the rotating motor 82 to rotate, the rotating gear ring 83 is driven to rotate, and the annular frame 81 is driven to rotate. The rotation of the annular frame 81 drives the limit block 91 to rotate. Since the rack 93 can only slide upward inside the limit block 91, the rack 93 drives the two lifting cylinders 4 to rotate inside the fixed cylinder 3. The rotation of the lifting cylinder 4 drives the air guide tube 51 to rotate, thereby mobilizing the monitoring cameras 113 and the infrared camera 114 on the upper and lower sides to rotate in the specified direction, and cooperates with the sound monitoring module 112 to realize the monitoring operation of the specified direction.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0044] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A monitoring device for a farmland environment, comprising a housing (1), characterized in that: The front of the box (1) is provided with a warning assembly (2), and fixed cylinders (3) extending to the outside of the box (1) are fixed inside the upper and lower walls of the box (1), and the interior of the fixed cylinder (3) is slidably connected to a lifting cylinder (4); An opening and closing assembly (5) is provided on the inner side of the lifting cylinder (4), a group of monitoring assemblies (6) are provided on both the left and right sides of the fixed cylinder (3) located inside the box (1), a limiting ring (7) is fixed on the inner side wall of the box (1), and a rotating assembly (8) for controlling the monitoring angle is provided on the inner side of the limiting ring (7), a lifting assembly (9) for height adjustment is provided on the opposite side of the two lifting cylinders (4), an air intake box (10) is fixed on one end of the two fixed cylinders (3) located outside the box (1), and a plurality of air inlet and outlet holes are provided on the surface of the air intake box (10) on the side close to the box (1), a monitoring assembly (11) is provided on the outer side of the box (1), and a fixing assembly (12) is provided on the back of the box (1).

2. The monitoring device for farmland environment according to claim 1, characterized in that: The warning component (2) comprises a data display screen (21) fixed on the front of the box (1), and a warning light (22) and an alarm (23) for alarm reminder are provided on the front of the box (1).

3. The monitoring device for farmland environment according to claim 1, characterized in that: The fixed cylinder (3) is a double-layer U-shaped cylinder, and the lifting cylinder (4) is a W-shaped cylinder. The lifting cylinder (4) is vertically embedded in the interior of the fixed cylinder (3) along the opening of the fixed cylinder (3) located outside the box (1), and is slidably connected to the fixed cylinder (3). The inner walls of the fixed cylinder (3) and the lifting cylinder (4) are both provided with gas grids for supplying gas.

4. The monitoring device for farmland environment according to claim 1, characterized in that: The opening and closing assembly (5) includes an air guide tube (51) slidably connected to the interior of the lifting cylinder (4), a fixing rod (52) is slidably connected to the interior of the opposite wall of the two lifting cylinders (4), and a closing plate (53) is fixed on the opposite side of the fixing rod (52). The end of the air guide tube (51) close to the closing plate (53) and the outer side of the closing plate (53) are provided with a mutually cooperating locking wedge, and the outer side of the fixing rod (52) is provided with a return spring (54) with two ends fixedly mounted on the closing plate (53) and the lifting cylinder (4) respectively.

5. The monitoring device for farmland environment according to claim 1, characterized in that: The monitoring assembly (6) includes a monitoring pipe (61) fixed to the side of the fixed cylinder (3), the monitoring pipe (61) is a circular structure, and the upper and lower sides are respectively connected to the tube cavities at the opposite ends of the two fixed cylinders (3), and a monitoring chamber (62) is provided at the central axis position of the monitoring pipe (61). An air guide fan is fixed inside the monitoring chamber (62), and monitoring sensors (63) are fixed on the opposite sides of the front and rear monitoring chambers (62).

6. The monitoring device for farmland environment according to claim 4, characterized in that: The rotating assembly (8) includes an annular frame (81) rotatably connected to the inner wall of the limiting ring (7), a rotating motor (82) is fixed to the side of the limiting ring (7), a rotating gear ring (83) is fixed to the top of the annular frame (81), and a driving gear is fixed to the output shaft of the rotating motor (82), and the driving gear is meshed with the rotating gear ring (83).

7. The monitoring device for farmland environment according to claim 6, characterized in that: The lifting assembly (9) includes a limit block (91) fixed on the inner side of the annular frame (81), a lifting motor (92) is fixed on the upper surface of the limit block (91), and racks (93) are fixed on one side of the two lifting cylinders (4) close to the limit block (91), the two racks (93) vertically penetrate the limit block (91) and are slidably connected to the limit block (91), the two racks (93) are symmetrically distributed along the central axis of the lifting motor (92), the output shaft of the lifting motor (92) is fixed with a working gear meshing with the racks (93) on both sides, and the side surface of one end of the fixed rod (52) located on the outer side of the lifting cylinder (4) is slidably connected to the rack (93) on the other lifting cylinder (4).

8. The monitoring device for farmland environment according to claim 4, characterized in that: The air guide pipe (51) vertically penetrates the air intake box (10) and extends to the outside of the opposite ends of the two air intake boxes (10), and is rotatably connected to the air intake boxes (10) via bearings. An air intake grille (511) is provided on the side wall of the air guide pipe (51) located inside the air intake box (10), and filter cotton is placed inside the air intake box (10).

9. The monitoring device for farmland environment according to claim 8, characterized in that: The monitoring assembly (11) comprises a humidity monitoring module (111) fixed to the inner wall of the air intake box (10) and parallel to the air intake grille (511); a sound monitoring module (112) is fixed to the outside of the air intake box (10); a monitoring camera (113) and an infrared camera (114) are respectively fixed to the ends of the upper and lower air guide pipes (51) on opposite sides; and a wind monitoring module (115) is fixed to the top of the box (1).

10. The monitoring device for farmland environment according to claim 1, characterized in that: The fixing assembly (12) comprises a fixing frame (121) fixed to the back of the box body (1), an electric lifting rod (122) is fixed to the bottom of the fixing frame (121), and a mounting seat (123) is fixed to the bottom of the electric lifting rod (122).

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