High-sensitivity low-error temperature monitor for tobacco seedling raising greenhouse

Abstract

The utility model relates to a high-sensitivity low-error tobacco seedling greenhouse temperature monitor, which comprises a hollow shell with two openings, a ventilation fan and a monitor body used for detecting air temperature are arranged in the shell, a probe of the monitor body is positioned in the shell, when the ventilation fan runs, the two openings of the shell are respectively an air inlet and an air outlet, and the air inlet is communicated with the air outlet. The air inlet of the shell is provided with a dustproof net and a spray head for spraying air to the dustproof net for dust removal, the spray head is arranged on one side, facing the inner cavity of the shell, of the dustproof net, the spray head is externally connected with an air source, the air source is communicated with the spray head through a connecting pipe, and the connecting pipe is provided with an electromagnetic valve controlled to be opened and closed. The shell and the dustproof net are used for protecting the probe of the temperature monitor, particulate matter on the dustproof net can be cleaned, the dustproof net is prevented from being blocked, air in a seedling raising shed and air in the shell of the monitor can be smoothly exchanged, and it is ensured that the probe of the temperature monitor can accurately monitor the temperature change condition in the seedling raising shed.

Description

Technical Field

[0001] The utility model relates to the field of tobacco planting technology, in particular to a high-sensitivity and low-error tobacco seedling shed temperature monitor. Background Art

[0002] Tobacco planting has important application value in the agricultural field, and tobacco seedling cultivation is an important link in tobacco planting and a key step to ensure good growth of tobacco. It has an important impact on the quality and yield of tobacco growth. Therefore, it has important application value in ensuring the smooth progress of tobacco planting and production, improving yield and quality, reducing costs, and standardizing production processes.

[0003] Since tobacco seedlings have strict requirements on temperature, too high or too low temperature will affect the growth and development of tobacco seedlings. Temperature monitors are generally installed in tobacco seedling sheds to monitor the temperature in the seedling shed. The temperature monitor includes a probe that monitors the air temperature changes in the seedling shed and a display panel that displays temperature data in real time, which is convenient for staff to directly observe and understand the temperature conditions in the seedling shed. Using the temperature monitor to monitor the temperature changes in the tobacco seedling shed in real time, the staff can detect abnormal temperature in time, which plays an important role in improving the level of tobacco planting production, reducing risks and costs, and ensuring the growth of tobacco seedlings.

[0004] However, because dust and other particles in the tobacco seedling shed may adhere to the probe of the temperature monitor and interfere with the monitoring accuracy of the temperature monitor, the probe of the temperature monitor used in the tobacco seedling shed is generally installed in the inner cavity of the shell of the temperature monitor, and two openings connected to the inner cavity are also opened on the side of the shell. A dustproof net for filtering dust is installed at the opening position. The air in the inner cavity of the temperature monitor shell is exchanged with the air in the seedling shed through these two openings. A ventilation fan can also be configured in the inner cavity of the temperature monitor shell to promote full exchange of air inside and outside the shell. The probe of the temperature monitor can obtain the air temperature in the seedling shed by detecting the air temperature in the inner cavity of the shell.

[0005] However, after the above-mentioned temperature monitor has been used for a period of time, since the air in the inner cavity of the shell needs to be exchanged with the air in the seedling shed through the opening, the dust net installed at the opening will also be blocked by dust and other particles, hindering the exchange of air in the seedling shed with the air in the monitor shell, resulting in the temperature monitor probe being unable to accurately monitor the temperature changes in the seedling shed. Utility Model Content

[0006] The utility model solves the problem that the dust-proof net installed at the opening of the shell of a temperature monitor in a seedling shed will be blocked by the dust-proof net after being used for a period of time, which hinders the exchange of air in the seedling shed with the air in the shell of the monitor, resulting in the temperature monitor being unable to accurately monitor the temperature changes in the seedling shed. A high-sensitivity and low-error tobacco seedling shed temperature monitor is provided to solve this technical problem. A nozzle is installed at the air inlet of the shell of the monitor, and an air source is provided to convey airflow to the nozzle. The airflow sprayed from the nozzle is used to clean the particulate matter accumulated on the dust-proof net, so that the dust-proof net is restored to a smooth state. The shell and the dust-proof net are used to protect the probe of the temperature monitor to prevent particulate matter from adhering to the probe of the temperature monitor. At the same time, the particulate matter on the dust-proof net can be cleaned to prevent the dust-proof net from being blocked, so that the air in the seedling shed and the air in the shell of the monitor can be smoothly exchanged, ensuring that the probe of the temperature monitor can accurately monitor the temperature changes in the seedling shed.

[0007] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0008] A high-sensitivity and low-error tobacco seedling shed temperature monitor, comprising a hollow shell with two openings, wherein a ventilation fan and a monitor body for detecting air temperature are arranged in the shell, and a probe of the monitor body is located in the shell. When the ventilation fan is running, the opening for air to flow into the shell is an air inlet, and the opening for air to flow out of the shell is an air outlet. The air inlet of the shell is provided with a dustproof net and a nozzle for jetting dust removal on the dustproof net, the nozzle is arranged on the side of the dustproof net facing the inner cavity of the shell, and the nozzle is externally connected to an air source, the air source and the nozzle are connected by a connecting pipe, and the connecting pipe is provided with a solenoid valve with controlled opening and closing.

[0009] Preferably, a display panel for displaying temperature data in real time is provided on the side of the shell of the temperature monitor, and a dust cover for covering the display panel is movably provided on the outer side of the shell. An edge on one side of the dust cover is rotatably connected to the shell, and a buckle assembly is provided between the edge on the other side and the shell, and a detachable connection is achieved through the buckle assembly. When the dust cover is rotated to engage with the buckle assembly, the display panel is located in a closed space formed by the shell and the dust cover.

[0010] Preferably, when the dust cover is covered on the display panel, a portion of the dust cover facing the display panel is defined as a protective plate, and the protective plate is a transparent plate.

[0011] Preferably, a button for adjusting the operating state of the temperature monitor is also provided on the side of the temperature monitor housing, and when the dust cover is rotated to engage with the buckle assembly, the button is also located in the closed space formed by the housing and the dust cover.

[0012] Preferably, the temperature monitor also includes a power supply line and a communication line. The monitor body and the solenoid valve are connected to the power supply network through the power supply line. The monitor body and the solenoid valve are communicatively connected to the remote control terminal through the communication line to transmit the temperature data measured by the monitor body and the control instructions issued by the remote control terminal.

[0013] Preferably, the temperature monitor further comprises a communication module electrically connected to the monitor body and the solenoid valve, and the communication module is communicatively connected to the remote control terminal via a wireless network.

[0014] Preferably, the communication module includes an antenna connected to the outside of the shell.

[0015] Preferably, a battery compartment is provided on the side of the shell of the temperature monitor, and a battery for supplying power to the monitor body and the solenoid valve is provided in the battery compartment, and a compartment cover for covering the battery compartment is detachably connected to the opening of the battery compartment.

[0016] Preferably, an equipment compartment is provided on the side of the shell of the temperature monitor, and an equipment compartment door is detachably connected to the opening of the equipment compartment, and the air source is a compressed air tank installed in the equipment compartment.

[0017] Preferably, a one-way air valve is provided at the air outlet of the shell of the temperature monitor.

[0018] Beneficial technical effects of the technical solution of the utility model:

[0019] (1) The temperature monitor includes a nozzle directed toward an air inlet of a hollow shell, the nozzle is connected to an air source supplying air flow through a connecting pipe, a solenoid valve is installed on the connecting pipe, and the on-off of the connecting pipe is controlled by the solenoid valve. When the dust screen installed at the air inlet is blocked, the solenoid valve is opened, and the air flow from the nozzle is used to clean the particles attached to the dust screen, thereby ensuring that the air in the shell of the temperature monitor is smoothly exchanged with the air in the seedling shed, and ensuring that the probe of the temperature monitor can accurately detect the change of air temperature in the seedling shed.

[0020] (ii) The display panel is installed on the side of the monitor body and is arranged in the housing together with the monitor body to prevent the display panel from being covered by dust and other particles. A mounting hole corresponding to the position of the display panel is opened on the side of the housing, and a protective plate with a cover mounting hole is rotatably connected to the outside of the housing. The displayed temperature data can be easily observed by opening the protective plate.

[0021] (iii) The part of the protective plate facing the installation hole is a transparent plate, so the staff can directly observe the temperature indication on the display panel without opening the protective plate, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It shows a schematic structural diagram of a high-sensitivity and low-error tobacco seedling shed temperature monitor in an embodiment of the utility model;

[0023] Figure 2 A schematic diagram showing the cooperation between the dust cover and the housing in an embodiment of the utility model is shown;

[0024] Figure 3 A schematic diagram showing the positions of the display panel, buttons and housing in an embodiment of the utility model is shown;

[0025] Figure 4 A schematic diagram showing the positions of the battery, the compressed air tank and the housing in an embodiment of the utility model is shown.

[0026] Markings in the accompanying drawings:

[0027] 1-shell; 11-air inlet; 111-dust screen; 12-air outlet; 121-one-way air valve; 2-dust cover; 21-protective plate; 22-buckle assembly; 23-display panel; 24-button; 3-spray nozzle; 31-connecting pipe; 32-solenoid valve; 33-compressed air tank; 34-equipment compartment door; 35-latch assembly; 4-battery; 41-compartment cover; 5-power supply line; 6-communication line; 7-antenna. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model clearer, the following is a further detailed description of a high-sensitivity, low-error tobacco seedling shed temperature monitor proposed by the utility model in combination with the accompanying drawings and specific implementation methods. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated by the accompanying drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so it has no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model.

[0029] The following will be combined with the attached Figures 1 to 4 The technical solution of a high-sensitivity and low-error tobacco seedling shed temperature monitor of the utility model is described in detail with specific embodiments.

[0030] Example

[0031] like Figures 1 to 4As shown, a high-sensitivity and low-error tobacco seedling shed temperature monitor of this embodiment includes a hollow shell 1 with two openings, both of which are connected to the inner cavity of the shell 1. A ventilation fan (not shown in the figure) and a monitor body (not shown in the figure) for detecting air temperature are also installed in the shell 1, and the probe of the monitor body is also located in the shell 1. When the ventilation fan is running, the air in the inner cavity of the shell 1 is exchanged with the air in the seedling shed. During the air exchange process, the opening for air to flow into the shell 1 is the air inlet 11, and the opening for air to flow out of the shell 1 is the air outlet 12. The air outlet 12 of the shell 1 is equipped with a one-way air valve 121 to ensure that the air flowing through the shell 1 can only flow in one direction; the air inlet 11 of the shell 1 is equipped with a dustproof net 111 for filtering dust and other particles, and the inner cavity of the shell 1 is also equipped with a nozzle 3 for performing jet dust removal operations on the dustproof net 111. The nozzle 3 is arranged on the side of the dustproof net 111 facing the inner cavity of the shell 1, and the nozzle 3 points to the position where the dustproof net 111 is located. In this embodiment, an air source is used to provide a high-pressure airflow to the nozzle 3, and the nozzle 3 is connected to the air source through a connecting pipe 31. The connecting pipe 31 is also equipped with a controlled opening and closing electromagnetic valve 32. By controlling the electromagnetic valve 32 to open, the nozzle 3 can spray airflow to remove dust and other particles accumulated on the dustproof net 111.

[0032] When the dust screen 111 installed at the air inlet 11 is blocked, the solenoid valve 32 is opened, and the airflow sprayed from the nozzle 3 can be used to clean the particles attached to the dust screen 111, ensuring that the air in the temperature monitor housing 1 is smoothly exchanged with the air in the seedling shed, ensuring that the probe of the temperature monitor can accurately detect the changes in the air temperature in the seedling shed.

[0033] In this embodiment, in order to ensure that dust and other particulate matter accumulated on the dustproof net 111 can be fully removed, a plurality of nozzles 3 arranged in sequence are installed in the cavity of the shell 1, and each nozzle 3 is responsible for removing dust from a part of the dustproof net 111. The end of the connecting pipe 31 connected to the nozzle 3 is provided with a plurality of branch pipes, and each nozzle 3 is connected to a branch pipe, so that all the nozzles 3 are connected to the connecting pipe 31 in parallel. In addition, a compressed air tank 33 is selected as the air source, and an equipment bin for accommodating the compressed air tank 33 is provided on the side of the shell 1. An equipment bin door 34 for covering the equipment bin is installed at the opening of the equipment bin. One end of the equipment bin door 34 is rotatably connected to the shell 1, and a latch assembly 35 is installed between the other end and the side of the shell 1. The latch nose of the latch assembly 35 is installed on the side of the shell 1, and the latch body is slidably matched with the equipment bin door 34. The latch assembly 35 is used to lock the equipment bin door 34 in a closed state. When the compressed air tank 33 needs to be replaced or maintained, the latch assembly 35 needs to be opened first before the equipment compartment door 34 can be unscrewed. In addition, the air source is not limited to the compressed air tank 33, and a small centrifugal fan can also be selected as long as it can output high-pressure airflow.

[0034] Furthermore, a display panel 23 for displaying temperature monitoring data in real time and a button 24 for adjusting the operating status of the monitor body are also configured on one side of the housing 1 of the temperature monitor. A dust cover 2 for covering the display panel 23 is also rotatably connected to the outer side of the housing 1. The opening of the dust cover 2 faces the side of the housing 1, and the top edge of the opening of the dust cover 2 is rotatably connected to the housing 1. The bottom edge of the opening of the dust cover 2 is detachably connected to the housing 1 through a buckle. When the dust cover 2 is rotated to the closed state, the buckle assembly 22 can be buckled to lock the position of the dust cover 2. At this time, a closed space is formed between the dust cover 2 and the side of the housing 1, and the display panel 23 and the button 24 are both located in the closed space. The buttons 24 and the display panel 23 of the monitor body are not exposed, thereby preventing dust and other particles from adhering to the buttons 24 and the display panel 23; when the protective plate 21 is opened, the staff can easily observe the indications of the display panel 23 and adjust the operating status of the monitor body through the buttons 24, such as calibrating the temperature monitor and adjusting the detection frequency of the temperature monitor.

[0035] In addition, when the dust cover 2 is rotated to a closed state, the portion of the dust cover 2 facing the display panel 23 and the button 24 is defined as a protective plate 21. The protective plate 21 is a transparent plate, specifically an acrylic plate or a glass plate. By setting the protective plate 21 facing the display panel 23 and the button 24 as a transparent plate, the staff does not need to open the protective plate 21 during use, and can conveniently observe the indications on the display panel 23.

[0036] Specifically, the temperature monitor also includes a power supply line 5 for power supply and a communication line 6 for transmitting data and signals. The monitor body and the solenoid valve 32 are connected to the power supply network through the power supply line 5. If the gas source is an electrical device, it can also be connected to the power supply network through the power supply line 5. The monitor body and the solenoid valve 32 are connected to the remote control terminal through the communication line 6. The communication line 6 is used to transmit the temperature data measured by the monitor body and the control instructions issued by the remote control terminal. If the gas source can receive the control instruction, the gas source can also be connected to the communication line 6, and the remote control terminal controls the gas source to work. The remote control terminal is responsible for collecting and analyzing the temperature data in the seedling shed measured by the temperature monitor, and can also issue instructions to control the monitor body to adjust the operating state and control the opening and closing of the solenoid valve 32. The remote control terminal can be a PC in the control room, or a mobile terminal such as a mobile phone configured with relevant control software. The rule for controlling the opening and closing of the solenoid valve 32 can be periodic automatic opening and closing, or it can be actively controlled by the staff to open and close the solenoid valve 32.

[0037] Furthermore, the temperature monitor is also equipped with a communication module electrically connected to the monitor body and the solenoid valve 32. The gas source capable of receiving control instructions can also be connected to the communication module, and the communication module communicates with the remote control terminal via a wireless network. The communication module in this embodiment also includes an antenna 7 connected to the outside of the housing 1. When the antenna 7 is installed outside the housing 1, the communication signal is better.

[0038] In order to prevent the power supply network from suddenly losing power, the temperature monitor in this embodiment is also equipped with a power failure detection module and an emergency power supply component for temporary power supply. The power failure detection module is installed in the power supply line 5, and the emergency power supply component includes a battery 4 and a control unit for controlling the battery 4 to be connected to the power supply line 5. When the power supply network suddenly loses power, the power failure detection module sends a power failure signal to the control unit of the emergency power supply component, thereby switching to using the emergency power supply component to supply power to the temperature monitor. A battery compartment is provided on the side of the housing 1 of the temperature monitor in this embodiment, and the battery 4 of the emergency power supply component is installed in the battery compartment. A compartment cover 41 for covering the battery compartment is detachably installed at the opening of the battery compartment. The compartment cover 41 is bolted to the housing 1 in a bolted manner, so that the compartment cover 41 can be easily disassembled and assembled when the battery 4 is replaced.

[0039] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A high-sensitivity and low-error tobacco seedling shed temperature monitor, characterized in that: It comprises a hollow shell with two openings, wherein a ventilation fan and a monitoring instrument body for detecting air temperature are arranged in the shell, and a probe of the monitoring instrument body is located in the shell. When the ventilation fan is running, the opening for air to flow into the shell is an air inlet, and the opening for air to flow out of the shell is an air outlet. The air inlet of the shell is provided with a dustproof net and a nozzle for jetting dust removal on the dustproof net. The nozzle is arranged on the side of the dustproof net facing the inner cavity of the shell, and the nozzle is externally connected to an air source. The air source and the nozzle are connected by a connecting pipe, and the connecting pipe is provided with a solenoid valve with controlled opening and closing.

2. A high-sensitivity, low-error tobacco seedling shed temperature monitor as claimed in claim 1, characterized in that: A display panel that displays temperature data in real time is provided on the side of the shell of the temperature monitor, and a dust cover for covering the display panel is movably provided on the outer side of the shell. An edge on one side of the dust cover is rotatably connected to the shell, and a buckle assembly is provided between the edge on the other side and the shell, and a detachable connection is achieved through the buckle assembly. When the dust cover is rotated to the buckle assembly to buckle, the display panel is located in a closed space formed by the shell and the dust cover.

3. A high-sensitivity, low-error tobacco seedling shed temperature monitor as claimed in claim 2, characterized in that: When the dust cover is covered on the display panel, the portion of the dust cover facing the display panel is defined as a protection plate, and the protection plate is a transparent plate.

4. A high-sensitivity, low-error tobacco seedling shed temperature monitor as claimed in claim 2, characterized in that: A button for adjusting the operating state of the temperature monitor is also provided on the side of the temperature monitor housing. When the dust cover is rotated to engage with the buckle assembly, the button is also located in the closed space formed by the housing and the dust cover.

5. A high-sensitivity, low-error tobacco seedling shed temperature monitor as claimed in claim 2, characterized in that: The temperature monitor also includes a power supply line and a communication line. The monitor body and the solenoid valve are connected to the power supply network through the power supply line. The monitor body and the solenoid valve are connected to the remote control terminal through the communication line to transmit the temperature data measured by the monitor body and the control instructions issued by the remote control terminal.

6. A high-sensitivity, low-error tobacco seedling shed temperature monitor as claimed in claim 5, characterized in that: The temperature monitor also includes a communication module electrically connected to the monitor body and the solenoid valve, and the communication module is connected to the remote control terminal through a wireless network.

7. A high-sensitivity, low-error tobacco seedling shed temperature monitor as claimed in claim 6, characterized in that: The communication module includes an antenna connected to the outside of the housing.

8. A high-sensitivity, low-error tobacco seedling shed temperature monitor as claimed in claim 1, characterized in that: A battery compartment is provided on the side of the shell of the temperature monitor. A battery for supplying power to the monitor body and the electromagnetic valve is provided in the battery compartment. A compartment cover for covering the battery compartment is detachably connected to the opening of the battery compartment.

9. A high-sensitivity, low-error tobacco seedling shed temperature monitor as claimed in claim 1, characterized in that: An equipment compartment is provided on the side of the shell of the temperature monitor, and an equipment compartment door is detachably connected to the opening of the equipment compartment. The air source is a compressed air tank installed in the equipment compartment.

10. A high-sensitivity, low-error tobacco seedling shed temperature monitor as claimed in claim 1, characterized in that: A one-way air valve is provided at the air outlet of the shell of the temperature monitor.

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