Protective device for cotton canopy temperature and humidity monitor

By designing a protective device for cotton crown temperature and humidity monitors including an umbrella body, wind speed detector, instrument box and driving mechanism, the problem that traditional brackets cannot effectively protect the temperature and humidity monitors is solved, and all-round protection of the instrument is achieved.

CN222912808UActive Publication Date: 2025-05-27INST OF COTTON RES CHINESE ACAD OF AGRI SCI +2
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Patent Information

Application Number
CN202422024568.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-21
Publication Date
2025-05-27
Estimated Expiration
2034-08-21

AI Technical Summary

Technical Problem

Traditional temperature and humidity monitor brackets cannot effectively protect the instrument, especially in rainy or severe weather conditions, resulting in damage to the instrument.

Method used

A protective device for a cotton crown temperature and humidity monitor is designed, including an umbrella body, a wind speed detector, an instrument box and a driving mechanism. The umbrella body is supported by the umbrella surface to avoid rain. The wind speed detector detects the weather in real time. The driving mechanism controls the opening and closing of the umbrella surface through an electric pull rod to ensure that the instrument is protected under severe weather conditions.

Benefits of technology

It effectively prevents the temperature and humidity monitor from being damaged by rain or solar radiation, and avoids damage to the instrument by strong winds through the opening and closing of the umbrella surface, achieving all-round protection of the monitoring instrument.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a protection device for a cotton canopy temperature and humidity monitor, which comprises an umbrella body, a wind speed detector, an instrument box and a driving mechanism, the umbrella body keeps an umbrella surface open state in the use process, the temperature and humidity monitor is prevented from being damaged by rain and solar radiation, the wind speed detector can detect weather in real time, and the wind speed detector can detect the temperature and humidity in real time. And the opening and closing of the umbrella are controlled through the driving part, so that the rain-proof umbrella can be used for preventing rain and can also be used for coping with extremely severe weather.
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Description

Technical Field

[0001] The utility model relates to an instrument waterproof device, and more specifically to a protective device for a cotton canopy temperature and humidity monitoring instrument. Background Art

[0002] In the prior art, a temperature and humidity monitor is often required when detecting and recording the temperature and humidity of the cotton canopy;

[0003] The traditional temperature and humidity monitor placement bracket only has a simple pole, with the instrument placed on the top and the bottom inserted into the soil;

[0004] However, during use, multiple temperature and humidity monitors are often needed, and the recording time is long. There is no one to watch over them during the detection process. When it rains or encounters other bad weather, the temperature and humidity monitors are often not retrieved in time, causing damage to the instrument.

[0005] Therefore, how to provide a new protective device for cotton canopy temperature and humidity monitor that can protect against rain while also coping with extreme weather conditions is an urgent problem that technicians in this field need to solve. Utility Model Content

[0006] In view of this, the utility model provides a new protective device for a cotton canopy temperature and humidity monitor, aiming to solve the technical problem that the above-mentioned traditional bracket cannot provide protection for the temperature and humidity monitor.

[0007] A protective device for a cotton canopy temperature and humidity monitor, comprising:

[0008] An umbrella body, the umbrella body comprising an umbrella pole, a connecting piece, an umbrella support frame and an umbrella surface, the umbrella pole is hollow, the connecting piece is slidably sleeved on the umbrella pole; the control folding end of the umbrella support frame is hinged to the connecting piece; the umbrella cover is arranged on the umbrella support frame, and the top end of the umbrella pole passes through the umbrella surface and is exposed above the umbrella surface;

[0009] A wind speed detector, the wind speed detector is installed at the top of the umbrella pole;

[0010] An instrument box, the instrument box is located below the umbrella surface and is firmly connected to the umbrella pole, and the cotton canopy temperature and humidity monitor is placed in the instrument box;

[0011] The driving mechanism includes a bottom shell, an electric pull rod and a controller installed in the bottom shell, the bottom end of the umbrella rod is fixed to the top end of the bottom shell, the telescopic end of the electric pull rod is connected to the connecting piece through a transmission member, and the controller is connected to the wind speed detector and the electric control part of the electric pull rod by electrical signals.

[0012] Through the above technical solution, the utility model solves the technical problem that the traditional bracket cannot provide protection for the temperature and humidity monitor. By supporting an umbrella surface above the temperature and humidity monitor, it can avoid the damage to the instrument caused by rain, solar radiation, and the influence of light on the monitoring results. It can also detect the weather in real time through the wind speed detector and feedback it to the controller, and control the opening and closing of the umbrella surface through the driving electric pull rod to avoid irreversible losses to the temperature and humidity monitor and its protection device caused by bad weather such as strong wind.

[0013] Preferably, the transmission member includes a connecting pin shaft and a transmission rod. A first pin hole is provided on the connecting member along the radial direction of the umbrella rod. The transmission rod is located inside the umbrella rod. The lower end of the transmission rod is in transmission connection with the telescopic end of the electric pull rod. A first pin hole is provided radially at the upper end of the transmission rod. A long strip-shaped avoidance hole is provided axially on the umbrella rod. The connecting pin shaft passes through the first pin hole, the long strip-shaped avoidance hole, and the first pin hole to fasten the connecting member and the transmission rod.

[0014] Preferably, the cross section of the transmission rod is semi-circular and it fits and slides on one side inside the umbrella rod, and the signal transmission line is arranged in the space on the other side inside the umbrella rod.

[0015] Preferably, the cross section of the transmission rod is semi-circular. A transmission rod is slidably connected to one side inside the umbrella rod, and a signal transmission line is arranged in the space on the other side.

[0016] Preferably, the instrument box includes a box body, an upper cover, and a lifting part. The opening end of the box body faces upward. A guide groove is provided on the side wall of the box body along the height direction of the umbrella body. A water leakage hole is provided at the bottom of the box body. The upper cover is rotatably connected to the opening end of the box body through an elastic hinge. The lifting part is located inside the box body, and the lifting part is slidably connected to the guide groove and is in transmission connection with the transmission rod.

[0017] Preferably, the lifting part includes a lifting block, a transmission shaft, and rollers. A transmission shaft avoidance hole is provided on the box body corresponding to the transmission shaft along the lifting direction of the lifting block; the lifting block is located inside the box body and is slidably connected to the guide groove; one end of the transmission shaft is fixed to the end face of the lifting block corresponding to the umbrella rod, and the other end passes through the transmission shaft avoidance hole and is in transmission connection with the transmission rod.

[0018] Preferably, the lifting block has a first end face and a second end face arranged oppositely and is symmetrically arranged relative to the transmission axis; the rollers are two groups and are respectively installed on the first end face and the second end face. The guide groove includes a first guide groove and a second guide groove arranged oppositely on the inner wall surface of the box body, and the two groups of rollers are respectively in rolling connection with the first guide groove and the second guide groove.

[0019] Preferably, the bottom shell includes a base and a housing. The base includes a chassis and rake nails. The rake nails are multiple and fixedly connected to the lower surface of the chassis. The housing is fixed to the upper end surface of the chassis. The electric pull rod and the controller are installed in the housing. The bottom end of the umbrella rod is fixed to the top end of the housing.

[0020] Preferably, the rake nails are perpendicular to the lower surface of the chassis. The rake nails include main rake nails and auxiliary rake nails. The main rake nails are arranged coaxially with the chassis. Multiple auxiliary rake nails are arranged circumferentially with the main rake nail as the center. The length of the main rake nail is greater than the length of the auxiliary rake nail.

[0021] Preferably, an opening and closing button is provided on the outer surface of the housing. The opening and closing button is electrically connected to the controller to control the telescopic opening and closing of the umbrella surface by the electric pull rod.

[0022] Through the above technical solutions, compared with the prior art, the present utility model discloses a protective device for a cotton canopy temperature and humidity monitor, which has the following beneficial effects:

[0023] 1. The upper part of the temperature and humidity monitor is supported by an umbrella surface, which can prevent the temperature and humidity monitor from being damaged by rain, solar radiation, and the influence of light on the monitoring results.

[0024] 2. A wind speed detector is installed at the top of the protective device. The real-time detection of the weather by the wind speed detector can be fed back to the controller, and the opening and closing of the umbrella can be controlled by driving the electric pull rod to avoid irreversible losses to the temperature and humidity monitor and its protective device caused by bad weather such as strong winds.

[0025] 3. The transmission rod is located inside the umbrella rod and has a semi-circular design. The signal transmission line is arranged inside the umbrella rod. The controller and the electric pull rod are installed inside the housing of the driving part. The transmission device and the cable are both located inside the protective device. While the structure is more compact, it can avoid the influence of external environmental factors on the transmission structure.

[0026] 4. The temperature and humidity monitor is placed in the instrument box. The transmission rod drives the lifting block to move up and down. The temperature and humidity monitor moves up and down with the lifting block, and its body is exposed outside the opening of the box or stored inside the housing. When the lifting block completely descends to the bottom of the box, the temperature and humidity monitor is completely stored in the box. And the opening end of the box is rotatably connected with an upper cover through an elastic hinge, which can completely isolate the temperature and humidity monitor from the surrounding environment when the umbrella surface is retracted, and further provide all-round protection for the temperature and humidity monitor.

[0027] 5. The main harrow pins are arranged coaxially with the chassis, so their axes pass through the center of gravity of the protective device. With the help of the self-gravity of the protective device, it is beneficial for deeper insertion. The design that the length of the main harrow pins is greater than that of the auxiliary harrow pins makes it more labor-saving in the early stage of inserting into the soil and the insertion process more stable. A plurality of auxiliary harrow pins are evenly arranged around the main harrow pins. On the premise that the main harrow pins have maintained the insertion direction, they are inserted into the soil, further improving the stability of the support base. Brief Description of the Drawings

[0028] Figure 1 Schematic perspective view of a protective device for a cotton canopy temperature and humidity monitor provided by the present utility model;

[0029] Figure 2 Front view of a protective device for a cotton canopy temperature and humidity monitor provided by the present utility model;

[0030] Figure 3 is Figure 2 A - A cross-sectional view of

[0031] Figure 4 is Figure 3 Partial enlarged view at B of

[0032] Figure 5 is Figure 3 Partial enlarged view at C of

[0033] Figure 6 Schematic perspective view of a protective device for a cotton canopy temperature and humidity monitor (hiding the umbrella surface) provided by the present utility model;

[0034] Figure 7 Left view of a protective device for a cotton canopy temperature and humidity monitor (hiding the umbrella surface) provided by the present utility model;

[0035] Figure 8 is Figure 6 Partial enlarged view at E of

[0036] Figure 9 is Figure 7 F - F cross-sectional view of

[0037] Figure 10 Schematic perspective view of the temperature and humidity monitor provided by the present utility model placed in the instrument box;

[0038] Figure 11 Schematic perspective view of the bottom of the instrument box provided by the present utility model;

[0039] Figure 12 Front view of the instrument box provided by the present utility model;

[0040] Figure 13 is Figure 12D-D sectional view;

[0041] Figure 14 Schematic perspective view of the lifting block provided by the present utility model;

[0042] Figure 15 Schematic perspective view of the box body provided by the present utility model;

[0043] Figure 16 Front view of the box body provided by the present utility model;

[0044] Figure 17 is Figure 16 H-H sectional view.

[0045] Wherein: 1 - umbrella body; 2 - wind speed detector; 3 - instrument box; 4 - driving mechanism; 6 - temperature and humidity monitor; 7 - transmission member; 11 - umbrella rod; 12 - umbrella surface support skeleton; 13 - connecting member; 14 - umbrella surface; 21 - signal transmission line; 31 - box body; 32 - upper cover; 33 - lifting part; 40 - bottom shell; 41 - controller; 42 - electric pull rod; 44 - battery; 45 - opening and closing button; 71 - transmission pin shaft; 72 - transmission rod; 111 - long strip avoidance hole; 311 - guide groove; 312 - water leakage hole; 313 - transmission shaft avoidance hole; 331 - lifting block; 332 - transmission shaft; 333 - roller; 401 - base; 402 - housing; 721 - limiting hole; 4011 - chassis; 4012 - harrow nail; 4013 - main harrow nail; 4014 - auxiliary harrow nail. Detailed implementation manners

[0046] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0047] See attached Figure 1-9 , an embodiment of the present utility model discloses a protective device for a cotton canopy temperature and humidity monitor, including: an umbrella body 1, a wind speed detector 2, an instrument box 3, and a driving mechanism 4;

[0048] The umbrella body 1, the umbrella body 1 includes an umbrella rod 11, a connecting member 13, an umbrella surface support skeleton 12 and an umbrella surface 14. The umbrella rod 11 is hollow, and the connecting member 13 is slidably sleeved on the umbrella rod 11; the control folding end of the umbrella surface support skeleton 12 is hinged to the connecting member 13; the umbrella surface 14 is covered on the umbrella surface support skeleton 12, and the top end of the umbrella rod 11 passes through the umbrella surface 14 and protrudes above the umbrella surface 14;

[0049] The wind speed detector 2 is installed at the top end of the umbrella rod 11;

[0050] The instrument box 3 is located below the umbrella surface 14 and is fixedly connected to the umbrella rod 11. The cotton canopy temperature and humidity monitor 6 is placed in the instrument box 3;

[0051] The driving mechanism 4 includes a bottom shell 40 and an electric pull rod 42 and a controller 41 installed in the bottom shell 40. The bottom end of the umbrella rod 11 is fixed to the top end of the bottom shell 40. The telescopic end of the electric pull rod 42 is connected to the connecting member 13 through a transmission member 7. The controller 41 is connected to the wind speed detector 2 and the electric control part of the electric pull rod 42 by electrical signals.

[0052] Specifically, the bottom end of the umbrella pole 11 and the top end of the bottom shell 40 are fastened and connected by threads, thereby facilitating disassembly and transportation.

[0053] In this embodiment, the transmission member 7 includes a connecting pin shaft 71 and a transmission rod 72. A pin hole 1 is provided on the connecting member 13 along the radial direction of the umbrella rod 11. The transmission rod 72 is located inside the umbrella rod 11. The lower end of the transmission rod 72 is transmission-connected to the telescopic end of the electric pull rod 42. A pin hole 1 is radially provided at the upper end of the transmission rod 72. A long strip avoidance hole 111 is axially provided at the umbrella rod 11. The connecting pin shaft 71 passes through the pin hole 1, the long strip avoidance hole 111 and the pin hole 1 to fasten the connecting member 13 and the transmission rod 72.

[0054] Specifically, the telescopic end of the electric pull rod 42 is fastened to the transmission rod 72 by bolts, and the connection portion is located in the umbrella rod 11, thereby facilitating disassembly and transportation.

[0055] In this embodiment, the wind speed detector 2 is electrically connected to the controller 41 via a signal transmission line 21 , and the signal transmission line 21 is located inside the umbrella pole 11 .

[0056] In this embodiment, the transmission rod 72 has a semicircular cross section and is adapted to slide on one side of the inside of the umbrella rod 11 , and the signal transmission line 21 is disposed in the other side space of the inside of the umbrella rod 11 .

[0057] In this embodiment, the bottom shell 40 includes a base 401 and a shell 402, the base 401 includes a chassis 4011 and rake nails 4012, and the rake nails are multiple fixedly connected to the lower surface of the chassis 4011; the shell is fixed to the upper end surface of the chassis 4011, the electric pull rod 42 and the controller 41 are installed in the shell 402, and the bottom end of the umbrella pole 11 is fixed to the top end of the shell 402.

[0058] In this embodiment, the rake nail 4012 is perpendicular to the lower surface of the chassis 4011, and the rake nail 4012 includes a main rake nail 4013 and an auxiliary rake nail 4014. The main rake nail 4013 is arranged coaxially with the chassis 4011, and multiple auxiliary rake nails 4014 are arranged in a circle with the main rake nail 4013 as the center. The length of the main rake nail 4013 is greater than the length of the auxiliary rake nail 4014.

[0059] In this embodiment, an opening and closing button 45 is disposed on the outer surface of the housing 402 , and the opening and closing button 45 is electrically connected to the controller to control the electric pull rod 42 to extend and close the umbrella canopy 14 .

[0060] Specifically, the driving mechanism 4 further includes a battery 44, whereby power can be provided for the controller 41, the electric drawbar 42, and the temperature and humidity monitor 6, making it more convenient to use in the fields.

[0061] More specifically, a waterproof external power interface is provided on the outer surface of the housing 402. Thus, the opening and closing of the umbrella surface 14 can be controlled by an external power source in case the battery runs out of power or malfunctions.

[0062] See the appendix Figure 10-17 , the instrument box 3 includes a box body 31, an upper cover 32, and a lifting part 33. The opening end of the box body 31 faces upward. A guiding groove 311 is provided on the side wall of the box body 31 along the height direction of the umbrella body 1, and a water leakage hole 312 is provided at the bottom of the box body 31. The upper cover 32 is rotatably connected to the opening end of the box body 31 through an elastic hinge. The lifting part 33 is located inside the box body 31, and the lifting part 33 is slidably connected to the guiding groove 311 and is in transmission connection with the transmission rod 72. Thus, the accumulated water in the box body 31 can be drained in time.

[0063] Specifically, the closing direction of the elastic hinge is the same as the closing direction of the instrument box 3, and after the upper cover 32 and the box body 31 are completely closed, a certain pre-tightening force can also be provided for the upper cover 32;

[0064] More specifically, sealing materials such as rubber are arranged at the positions where the upper cover 32 contacts the box body 31. Thus, the sealing performance of the instrument box 3 can be improved.

[0065] In this embodiment, the lifting part 33 includes a lifting block 331, a transmission shaft 332, and a roller 333. The box body 31 is provided with a transmission shaft avoidance hole 313 corresponding to the transmission shaft 332 along the lifting direction of the lifting block 331; the lifting block 331 is located inside the box body 31 and is slidably connected to the guiding groove 311; one end of the transmission shaft 332 is fixed to the end face of the lifting block 331 corresponding to the umbrella rod 11, and the other end passes through the transmission shaft avoidance hole 313 and is in transmission connection with the transmission rod 72.

[0066] Specifically, a limiting hole 721 is provided on the transmission rod 72 corresponding to the lifting path of the transmission shaft 332.

[0067] Specifically, the rising height of the lifting block 331 inside the box body 31 is based on the position of the sensor of the temperature and humidity monitor 6 being completely exposed outside the box body 31. During the unfolding process of the umbrella surface 14, the bottom end of the limiting hole 721 drives the transmission shaft 332, which in turn drives the lifting block 331 to rise to the specified height.

[0068] More specifically, the limiting hole 721 is a long hole, and its length is greater than the distance that the connecting piece 13 moves up and down during the opening and closing process of the umbrella surface 14. Thus, overpressure of the top end of the limiting hole 721 on the transmission shaft 332 is avoided.

[0069] In this embodiment, the lifting block 331 has a first end face and a second end face arranged oppositely and is symmetrically arranged relative to the transmission shaft 332; there are two sets of rollers 333 respectively installed on the first end face and the second end face. The guiding grooves 311 include a first guiding groove and a second guiding groove oppositely arranged on the inner wall surface of the box body 31, and the two sets of rollers 333 are respectively in rolling connection with the first guiding groove and the second guiding groove. Thus, the rollers can reduce the friction force of the lifting block 33 during the lifting process and improve the running stability.

[0070] The specific principle and usage method of the protection device for the cotton canopy temperature and humidity monitor provided in this embodiment are as follows:

[0071] 1. Hold the protection device for the cotton canopy temperature and humidity monitor in a vertical state and insert it into the soil. After the main harrow nails 4013 are inserted into the soil, step on the chassis 4011 to make the auxiliary harrow nails 4014 insert into the soil until the lower surface of the chassis 4011 is in full contact with the soil.

[0072] 2. Operate the opening and closing button 45, the telescopic end of the electric pull rod 42 rises, the transmission rod 72 drives the connecting piece 13 to rise, and then controls the umbrella surface support frame 12 to support the umbrella surface 14 to open.

[0073] 3. During the rising process of the transmission rod 72, the limiting hole 721 drives the transmission shaft 332 to rise, and then drives the lifting block 331 to rise to the specified height.

[0074] 4. Manually lift the upper cover 32 and place the temperature and humidity monitor 6 in the box body 31 to ensure that the sensor position of the temperature and humidity monitor 6 is completely exposed to the air.

[0075] 5. Release the upper cover 32, and the upper cover 32 is placed on the temperature and humidity monitor 6 under the action of the elastic hinge. After ensuring that the temperature and humidity monitor 6 is stably placed, the arrangement of the protection device for the cotton canopy temperature and humidity monitor is completed.

[0076] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. 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 protective device for a cotton canopy temperature and humidity monitor, characterized in that: include: An umbrella body (1), the umbrella body (1) comprising an umbrella pole (11), a connecting piece (13), an umbrella cover supporting frame (12) and an umbrella cover (14), the umbrella pole (11) being hollow, the connecting piece (13) being slidably sleeved on the umbrella pole (11); the control folding end of the umbrella cover supporting frame (12) being hinged to the connecting piece (13); the umbrella cover (14) being covered on the umbrella cover supporting frame (12), the top end of the umbrella pole (11) passing through the umbrella cover (14) and being exposed above the umbrella cover (14); A wind speed detector (2), the wind speed detector (2) being mounted on the top end of the umbrella pole (11); An instrument box (3), the instrument box (3) being located below the umbrella surface (14) and being firmly connected to the umbrella pole (11), and the cotton canopy temperature and humidity monitor (6) being placed in the instrument box (3); A driving mechanism (4), the driving mechanism (4) comprising a bottom shell (40) and an electric pull rod (42) and a controller (41) installed in the bottom shell (40); the bottom end of the umbrella rod (11) is fixed to the top end of the bottom shell (40); the telescopic end of the electric pull rod (42) is connected to the connecting member (13) through a transmission member (7); and the controller (41) is connected to the wind speed detector (2) and the electric control part of the electric pull rod (42) through electrical signals.

2. The protective device for a cotton canopy temperature and humidity monitor according to claim 1, characterized in that: The transmission member (7) comprises a connecting pin shaft (71) and a transmission rod (72); a pin hole (1) is provided on the connecting member (13) along the radial direction of the umbrella rod (11); the transmission rod (72) is located inside the umbrella rod (11); the lower end of the transmission rod (72) is transmission-connected with the telescopic end of the electric pull rod (42); a pin hole (1) is radially provided on the upper end of the transmission rod (72); a long strip avoidance hole (111) is axially provided on the umbrella rod (11); the connecting pin shaft (71) passes through the pin hole (1), the long strip avoidance hole (111) and the pin hole (1) to fasten the connecting member (13) and the transmission rod (72).

3. The protective device for a cotton canopy temperature and humidity monitor according to claim 2, characterized in that: The wind speed detector (2) is electrically connected to the controller (41) via a signal transmission line (21), and the signal transmission line (21) is located inside the umbrella pole (11).

4. The protective device for a cotton canopy temperature and humidity monitor according to claim 3, characterized in that: The transmission rod (72) has a semicircular cross-section and is adapted to slide on one side of the interior of the umbrella rod (11), and the signal transmission line (21) is arranged in the space on the other side of the interior of the umbrella rod (11).

5. The protective device for a cotton canopy temperature and humidity monitor according to claim 4, characterized in that: The instrument box (3) comprises a box body (31), an upper cover (32) and a lifting part (33); the opening end of the box body (31) faces upward; a guide groove (311) is provided on the side wall of the box body (31) along the height direction of the umbrella body (1); a water leakage hole (312) is provided on the bottom of the box body (31); the upper cover (32) is rotatably connected to the opening end of the box body (31) through an elastic hinge; the lifting part (33) is located inside the box body (31); the lifting part (33) is slidably connected to the guide groove (311) and is transmission-connected to the transmission rod (72).

6. The protective device for a cotton canopy temperature and humidity monitor according to claim 5, characterized in that: The lifting part (33) comprises a lifting block (331), a transmission shaft (332) and a roller (333); the box body (31) is provided with a transmission shaft avoidance hole (313) corresponding to the transmission shaft (332) along the lifting direction of the lifting block (331); the lifting block (331) is located in the box body (31) and is slidably connected to the guide groove (311); one end of the transmission shaft (332) is fixed to a side end surface of the lifting block (331) corresponding to the umbrella rod (11), and the other end passes through the transmission shaft avoidance hole (313) and is transmission-connected to the transmission rod (72).

7. A protective device for a cotton canopy temperature and humidity monitor according to claim 6, characterized in that: The lifting block (331) has a first end face and a second end face that are arranged opposite to each other and are symmetrically arranged relative to the transmission shaft (332); the rollers (333) are composed of two groups that are respectively installed corresponding to the first end face and the second end face; the guide groove (311) comprises a first guide groove and a second guide groove that are respectively arranged on the inner wall surface of the box body (31); and the two groups of rollers (333) are respectively corresponding to and rollingly connected with the first guide groove and the second guide groove.

8. The protective device for a cotton canopy temperature and humidity monitor according to claim 1, characterized in that: The bottom shell (40) comprises a base (401) and a shell (402); the base (401) comprises a chassis (4011) and rake spikes (4012); the rake spikes are a plurality of rake spikes fixedly connected to the lower surface of the chassis (4011); the shell is fixed to the upper end surface of the chassis (4011); the electric pull rod (42) and the controller (41) are installed in the shell (402); and the bottom end of the umbrella pole (11) is fixed to the top end of the shell (402).

9. The protective device for a cotton canopy temperature and humidity monitor according to claim 8, characterized in that: The rake nail (4012) is perpendicular to the lower surface of the chassis (4011), and the rake nail (4012) includes a main rake nail (4013) and an auxiliary rake nail (4014). The main rake nail (4013) is coaxially arranged with the chassis (4011), and a plurality of auxiliary rake nails (4014) are arranged in a circle with the main rake nail (4013) as the center. The length of the main rake nail (4013) is greater than the length of the auxiliary rake nail (4014).

10. The protective device for a cotton canopy temperature and humidity monitor according to claim 9, characterized in that: An opening and closing button (45) is disposed on the outer surface of the shell (402), and the opening and closing button (45) is connected to the controller (41) via an electrical signal to control the electric pull rod (42) to extend and retract to open and close the umbrella cover (14).