Automatic temperature adjusting device in vegetable greenhouse

Abstract

The utility model relates to the technical field of vegetable greenhouses, and discloses an automatic temperature adjusting device in a vegetable greenhouse, the bottom of the inner side of a greenhouse body is fixedly connected with a hot-air blower, the top of the hot-air blower is fixedly communicated with an air inlet pipe, the right side of the hot-air blower is fixedly communicated with an air delivery pipe, the right end of the air delivery pipe is fixedly communicated with a flow dividing pipe, and the flow dividing pipe is fixedly communicated with a temperature adjusting device. The greenhouse comprises a greenhouse body, a mounting block is fixedly connected to the upper portion of the inner side of the greenhouse body, a temperature sensor is fixedly connected to the bottom of the mounting block, a connecting block is fixedly connected to the top of the mounting block, and a PLC is fixedly connected to the middle side of the top of the connecting block. The temperature sensor can detect the real-time temperature of the greenhouse body and transmit the real-time temperature to the PLC, and the PLC controls the air heater and the air exchange fan according to the detected temperature to raise or lower the temperature, so that the temperature in the greenhouse body is kept, crop growth is facilitated, and workers can use the greenhouse conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of vegetable greenhouses, in particular to an automatic temperature regulating device in a vegetable greenhouse. Background Art

[0002] In our lives, greenhouse vegetables can be seen everywhere. The time of vegetables coming to market can be artificially controlled through greenhouses. Greenhouse vegetables can meet the rapid supply needs of vegetables in different seasons. Therefore, the output of greenhouse vegetables is very huge. The existing greenhouse vegetable cultivation is basically based on artificial cultivation. The specific processes of greenhouse cultivation include planting, loosening soil, fertilizing, watering, harvesting, etc.

[0003] However, traditional greenhouses are generally heated or cooled manually, which increases the workload of the staff. At the same time, the degree of automation is low, and the temperature is often not controlled in time, which is not conducive to the growth of crops and inconvenient for staff to use. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an automatic temperature control device in a vegetable greenhouse to solve the problem mentioned in the above background technology that traditional greenhouses are generally heated or cooled manually, which increases the workload of the staff and has a low degree of automation. The temperature is often not controlled in time, which is not conducive to the growth of crops and is inconvenient for staff to use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic temperature control device in a vegetable greenhouse, comprising a greenhouse body, a greenhouse door is arranged on the front side of the greenhouse body, ventilation fans are arranged on the front and rear sides of the greenhouse body, a hot air blower is fixedly connected to the bottom of the inner side of the greenhouse body, an air intake pipe is fixedly connected to the top of the hot air blower, a dust cover is fixedly connected to the bottom of the air intake pipe, a filter is fixedly connected to the bottom of the dust cover, an air supply pipe is fixedly connected to the right side of the hot air blower, a shunt pipe is fixedly connected to the right end of the air supply pipe, and the The top of the shunt pipe is fixedly connected to a nozzle, a mounting block is fixedly connected to the upper inner side of the greenhouse body, a temperature sensor is fixedly connected to the bottom of the mounting block, a connecting block is fixedly connected to the top of the mounting block, a PLC controller is fixedly connected to the top middle side of the connecting block, a fixing plate is fixedly connected to the front and back sides of the top of the connecting block, an electric push rod is fixedly connected to the side of the fixing plate close to the ventilation fan, a sealing plate is fixedly connected to the side of the electric push rod away from the fixing plate, and a rubber sealing block is fixedly connected to the side of the sealing plate away from the electric push rod.

[0006] Preferably, there are a plurality of nozzles, and the nozzles are distributed in a linear array on the top of the diverter pipe, and the spacing between the nozzles is the same.

[0007] By adopting the above technical solution, by setting up nozzles, diverter pipes, etc. for use in combination, the diverter pipes can evenly transport hot air to the interior of the greenhouse body through the nozzles, preventing uneven temperature rise, affecting temperature control, and thus being detrimental to the growth of crops and inconvenient to use.

[0008] Preferably, the temperature sensor and the electric push rod are electrically connected to the PLC controller, and the PLC controller is electrically connected to the hot air blower and the ventilation fan respectively.

[0009] By adopting the above technical solution, by setting up temperature sensors, PLC controllers, hot air blowers, ventilation fans, etc. for use in combination, the temperature sensor can detect the real-time temperature of the greenhouse body and transmit it to the PLC controller. The PLC controller controls the hot air blower and ventilation fan according to the detected temperature to increase or decrease the temperature, thereby maintaining the temperature inside the greenhouse body, which is beneficial to the growth of crops and convenient for use by staff.

[0010] Preferably, there are two sealing plates, and the two sealing plates are respectively located at the front and rear sides of the two electric push rods, and the positions of the two sealing plates correspond to the positions of the ventilation fans.

[0011] Preferably, there are two rubber sealing blocks, the two rubber sealing blocks are respectively located on the surfaces of the two sealing plates, and the diameter of the two rubber sealing blocks is the same as the diameter of the ventilation fan.

[0012] Preferably, the air inlet pipe passes through the inner wall of the greenhouse body and extends to the outside of the greenhouse body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The automatic temperature control device in the vegetable greenhouse is used in conjunction with a temperature sensor, a PLC controller, a hot air blower, a ventilation fan, etc. The temperature sensor can detect the real-time temperature of the greenhouse body and transmit it to the PLC controller. The PLC controller controls the hot air blower and the ventilation fan according to the detected temperature to increase or decrease the temperature, thereby maintaining the temperature inside the greenhouse body, which is beneficial to the growth of crops and convenient for use by staff.

[0015] 2. The automatic temperature control device in the vegetable greenhouse is used in conjunction with a dust cover and a filter. The filter will filter out debris in the outside air to prevent it from entering the intake pipe and blocking it. When the intake pipe stops inhaling air, the debris filtered on the filter will fall freely under the action of gravity and fall off the filter to prevent it from affecting the next filtering effect, making it convenient for the staff to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the positive cross-section structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the right cross-section structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the shunt pipe of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the dust cover of the utility model.

[0021] In the figure: 1. Greenhouse body; 2. Greenhouse door; 3. Ventilation fan; 4. Hot air blower; 5. Air inlet pipe; 6. Dust cover; 7. Filter; 8. Air supply pipe; 9. Diverter pipe; 10. Nozzle; 11. Mounting block; 12. Temperature sensor; 13. Connection block; 14. PLC controller; 15. Fixing plate; 16. Electric push rod; 17. Sealing plate; 18. Rubber sealing block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1:

[0024] Please refer to Figure 1-4, an automatic temperature control device in a vegetable greenhouse, comprising a greenhouse body 1, a greenhouse door 2 is arranged on the front side of the greenhouse body 1, ventilation fans 3 are arranged on the front and rear sides of the greenhouse body 1, a hot air blower 4 is fixedly connected to the bottom of the inner side of the greenhouse body 1, an air intake pipe 5 is fixedly connected to the top of the hot air blower 4, a dust cover 6 is fixedly connected to the bottom of the air intake pipe 5, a filter screen 7 is fixedly connected to the bottom of the dust cover 6, an air supply pipe 8 is fixedly connected to the right side of the hot air blower 4, a shunt pipe 9 is fixedly connected to the right end of the air supply pipe 8, a nozzle 10 is fixedly connected to the top of the shunt pipe 9, a plurality of nozzles 10 are arranged in a linear array on the top of the shunt pipe 9, and the spacing between the plurality of nozzles 10 is the same, the greenhouse body 1 A mounting block 11 is fixedly connected to the upper inner side, a temperature sensor 12 is fixedly connected to the bottom of the mounting block 11, a connecting block 13 is fixedly connected to the top of the mounting block 11, a PLC controller 14 is fixedly connected to the top middle side of the connecting block 13, the temperature sensor 12 and the electric push rod 16 are electrically connected to the PLC controller 14, the PLC controller 14 is electrically connected to the hot air blower 4 and the ventilation fan 3 respectively, a fixing plate 15 is fixedly connected to the front and back sides of the top of the connecting block 13, an electric push rod 16 is fixedly connected to the side of the fixing plate 15 close to the ventilation fan 3, a sealing plate 17 is fixedly connected to the side of the electric push rod 16 away from the fixing plate 15, and a rubber sealing block 18 is fixedly connected to the side of the sealing plate 17 away from the electric push rod 16.

[0025] Working principle: When in use, the temperature sensor 12 detects the temperature of the greenhouse body 1 in real time and transmits it to the PLC controller 14. When the PLC controller 14 detects that the temperature is lower than the preset temperature, it first controls the electric push rod 16 to extend and then push the sealing plate 17 to drive the rubber sealing block 18 to move in the direction of the exhaust fan, thereby sealing the exhaust fan, so that the greenhouse body 1 is a closed space. At this time, the PLC controller 14 starts the hot air blower 4, which draws outside air through the air inlet pipe 5 for heating, and transports it to the shunt pipe 9 through the air supply pipe 8. The shunt pipe 9 then evenly delivers the hot air to the interior of the greenhouse body 1 through a number of nozzles 10 to prevent uneven temperature rise. When the PLC control detects that the temperature is higher than the preset temperature, it will first control the electric push rod 16 to contract, driving the sealing plate 17 and the rubber sealing block 18 away from the exhaust fan. At this time, the PLC controller 14 starts the exhaust fan, and the exhaust fan continuously delivers outside air into the interior of the greenhouse body 1 to cool down the greenhouse body 1, thereby maintaining the temperature inside the greenhouse body 1, which is beneficial to the growth of crops and convenient for use by staff.

[0026] Compared with the related art, the automatic temperature control device in a vegetable greenhouse provided by the utility model has the following beneficial effects: by setting a temperature sensor 12, a PLC controller 14, a hot air blower 4, a ventilation fan 3, etc. for use in combination, the temperature sensor 12 can detect the real-time temperature of the greenhouse body 1 and transmit it to the PLC controller 14. The PLC controller 14 controls the hot air blower 4 and the ventilation fan 3 according to the detected temperature to increase or decrease the temperature, thereby maintaining the temperature inside the greenhouse body 1, which is beneficial to the growth of crops and convenient for use by staff.

[0027] Embodiment 2:

[0028] Please refer to Figure 1-5 A greenhouse door 2 is arranged on the front side of the greenhouse body 1, and ventilation fans 3 are arranged on the front and rear sides of the greenhouse body 1. A hot air blower 4 is fixedly connected to the bottom of the inner side of the greenhouse body 1, and an air intake pipe 5 is fixedly connected to the top of the hot air blower 4. A dust cover 6 is fixedly connected to the bottom of the air intake pipe 5, and a filter screen 7 is fixedly connected to the bottom of the dust cover 6. An air supply pipe 8 is fixedly connected to the right side of the hot air blower 4, and a shunt pipe 9 is fixedly connected to the right end of the air supply pipe 8, and a nozzle 10 is fixedly connected to the top of the shunt pipe 9.

[0029] Working principle: When the air intake pipe 5 absorbs air from the outside, the filter screen 7 at the bottom of the dust cover 6 will filter the debris in the outside air to prevent the debris from entering the air intake pipe 5 and blocking the air intake pipe 5, thereby affecting the heating effect. When the air intake pipe 5 stops inhaling air, the debris filtered on the filter screen 7 will fall freely under the action of gravity and fall off the filter to prevent affecting the next filtering effect, making it convenient for the staff to use.

[0030] Compared with the related art, the automatic temperature control device in a vegetable greenhouse provided by the utility model has the following beneficial effects: by setting a dust cover 6, a filter screen 7 and the like for use in conjunction, the filter screen will filter debris in the outside air to prevent the debris from entering the air intake pipe 5 and blocking the air intake pipe 5; when the air intake pipe 5 stops inhaling, the debris filtered on the filter screen 7 will fall freely under the action of gravity and fall off the filter, preventing it from affecting the next filtering effect, making it convenient for the staff to use.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic temperature control device in a vegetable greenhouse, comprising a greenhouse body (1), characterized in that: The front side of the greenhouse body (1) is provided with a greenhouse door (2), the front and rear sides of the greenhouse body (1) are both provided with ventilation fans (3), the bottom of the inner side of the greenhouse body (1) is fixedly connected to a hot air blower (4), the top of the hot air blower (4) is fixedly connected to an air intake pipe (5), the bottom of the air intake pipe (5) is fixedly connected to a dust cover (6), the bottom of the dust cover (6) is fixedly connected to a filter screen (7), the right side of the hot air blower (4) is fixedly connected to an air supply pipe (8), the right end of the air supply pipe (8) is fixedly connected to a shunt pipe (9), the top of the shunt pipe (9) is fixedly connected to a nozzle (10), the upper inner side of the greenhouse body (1) is fixedly connected to a nozzle (11), and the upper inner side of the greenhouse body (1) is fixedly connected to a nozzle (12). A mounting block (11) is connected, the bottom of the mounting block (11) is fixedly connected to a temperature sensor (12), the top of the mounting block (11) is fixedly connected to a connection block (13), the middle side of the top of the connection block (13) is fixedly connected to a PLC controller (14), the front and rear sides of the top of the connection block (13) are fixedly connected to a fixing plate (15), the side of the fixing plate (15) close to the ventilation fan (3) is fixedly connected to an electric push rod (16), the side of the electric push rod (16) away from the fixing plate (15) is fixedly connected to a sealing plate (17), and the side of the sealing plate (17) away from the electric push rod (16) is fixedly connected to a rubber sealing block (18).

2. The automatic temperature control device for a vegetable greenhouse according to claim 1, characterized in that: The number of the nozzles (10) is several, and the nozzles (10) are distributed in a linear array on the top of the diverter pipe (9), and the spacing between the nozzles (10) is the same.

3. The automatic temperature control device in a vegetable greenhouse according to claim 1, characterized in that: The temperature sensor (12) and the electric push rod (16) are electrically connected to the PLC controller (14), and the PLC controller (14) is electrically connected to the hot air blower (4) and the ventilation fan (3) respectively.

4. The automatic temperature control device in a vegetable greenhouse according to claim 1, characterized in that: There are two sealing plates (17), and the two sealing plates (17) are respectively located at the front and rear sides of the two electric push rods (16), and the positions of the two sealing plates (17) correspond to the positions of the ventilation fans (3).

5. The automatic temperature control device in a vegetable greenhouse according to claim 1, characterized in that: The number of the rubber sealing blocks (18) is two, and the two rubber sealing blocks (18) are respectively located on the surfaces of the two sealing plates (17), and the diameter of the two rubber sealing blocks (18) is the same as the diameter of the ventilation fan (3).

6. The automatic temperature control device for a vegetable greenhouse according to claim 1, characterized in that: The air inlet pipe (5) passes through the inner wall of the greenhouse body (1) and extends to the outside of the greenhouse body (1).

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