Volatile gas collecting device for identifying entomopathogenic fungi in tea garden

Abstract

The invention relates to the technical field of gas collection, in particular to a collection device of volatile gas for identifying entomopathogenic fungi in a tea garden, which comprises a base, a telescopic outer box, a telescopic frame assembly and a gas collection mechanism, an equipment box main body is arranged in the middle of the base, and a sensor assembly, a semiconductor refrigerator, an electric heating wire, a dehumidification mechanism and a humidification mechanism are mounted on the equipment box main body; the telescopic outer box comprises a plurality of outer boxes which are coaxially arranged; the telescopic frame assembly is installed on the base, and a plurality of springs are connected between the upper end of the telescopic frame assembly and the outer box on the innermost side. The gas collecting mechanism comprises a collecting barrel and a plurality of piston plates. By arranging the telescopic box body, it can be guaranteed that gas in the box body is smoothly discharged in a sealed state, gas samples can be collected multiple times by arranging the gas collecting mechanism, after work is finished, the gas collecting mechanism is detached, the gas samples can be detected together, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas collection, in particular to a volatile gas collection device for identifying insect pathogenic fungi in tea gardens. BACKGROUND

[0002] During the growth of tea garden plants, certain volatile substances are produced, i.e., certain "odors" are generated. The volatile odor of plants plays an important chemical signal role between plants and plants and between plants and insects. For example, when a plant is invaded by a pathogenic fungus, it will produce signal molecules to resist the invasion of the pathogenic fungus. The collection and detection of plant volatile substances are the premise of studying the relationship between the production of these substances and pathogens. Common extraction techniques for plant volatile substances include solvent extraction, water vapor distillation extraction, and adsorption extraction.

[0003] In the prior art, multiple volatile gases are usually collected for analyzing the changes in substances in the volatile gases under different temperatures and different humidity conditions. Since the plants are placed in a sealed box, a large amount of gas cannot be extracted under the influence of air pressure. The box needs to be connected to the outside world during sampling, but this will cause external gas to mix into the collected sample, thereby affecting the accuracy of the sampling. Moreover, when multiple samples are taken, multiple containers are needed for sequential collection and sequential packaging, thereby reducing work efficiency.

[0004] Based on this, a volatile gas collection device for identifying insect pathogenic fungi in tea gardens is now provided, which can eliminate the drawbacks of existing devices. SUMMARY

[0005] To solve the above problems, a volatile gas collection device for identifying insect pathogenic fungi in tea gardens is provided, which solves the problem of low work efficiency.

[0006] To solve the problems in the prior art, the present application provides a volatile gas collection device for identifying insect pathogenic fungi in tea gardens, which comprises a base, a device box main body is arranged in the middle of the base, and a sensor assembly, a semiconductor refrigerator, an electric heating wire, a dehumidification mechanism, and a humidification mechanism are installed on the device box main body.

[0007] The telescopic outer box comprises a plurality of coaxially arranged outer boxes. Except for the innermost outer box, the upper and lower ends of the remaining outer boxes are open. The lower end of the innermost outer box is open, and the upper end has a sealing structure. The adjacent two outer boxes are slidingly connected. The bottom end of each outer box is provided with a first sealing ring. The outermost outer box and the base are detachably connected.

[0008] The telescopic frame assembly is installed on the base, and a plurality of springs are connected between the upper end of the telescopic frame assembly and the innermost outer box.

[0009] The gas collecting mechanism comprises a collecting cylinder and a plurality of piston plates, the collecting cylinder is detachably installed on the telescopic outer box, the collecting cylinder is in communication with the inner side of the telescopic outer box, the plurality of piston plates are arranged side by side, the outer periphery of the piston plate is provided with a third sealing ring, and the collecting cylinder is provided with a power assembly for driving the plurality of piston plates to move synchronously; a plurality of gas outlet pipes are communicated on the collecting cylinder, and valves are installed on the plurality of gas outlet pipes.

[0010] Preferably, the first air pipe and the second air pipe are communicated and arranged on the telescopic outer box, and the first electromagnetic valve and the second electromagnetic valve are respectively installed on the first air pipe and the second air pipe.

[0011] Preferably, the inner side of the telescopic outer box is provided with a blade, and the telescopic outer box is provided with a motor for driving the blade to rotate.

[0012] Preferably, the telescopic frame assembly comprises a lifting rod and two groups of telescopic rods, the lifting rod is arranged above the telescopic outer box, the two telescopic rods are vertically arranged at two ends of the base respectively, the telescopic rod comprises a plurality of support sleeves coaxially arranged, the bottom end of the support sleeve is movably arranged in the inside of the outer support sleeve, the inner wall upper end and the outer wall lower end of the support sleeve are provided with threads, the adjacent two support sleeves are threadedly connected, and the upper end of the innermost support sleeve is rotationally connected with the lifting rod.

[0013] Preferably, the power assembly comprises a servo motor, a threaded sleeve, a threaded rod, a movable sleeve and a guide rod, wherein the plurality of piston plates are connected with the threaded sleeve, the threaded rod is rotationally installed on the inner side of the collecting cylinder, the threaded rod is threadedly connected with the threaded sleeve, the servo motor is installed on the collecting cylinder and its output shaft is connected with the threaded rod, the movable sleeve passes through the plurality of piston plates, the guide rod is arranged on the inner side of the collecting cylinder, and the bottom end of the guide rod is slidably arranged in the inside of the movable sleeve.

[0014] Preferably, the dehumidifying mechanism comprises a drying box and a small air pump, wherein the drying box and the small air pump are arranged on the inner side of the equipment box body, the input end of the small air pump is arranged on the outer side of the equipment box body, the output end of the small air pump is in communication with the inside of the drying box, the drying box is connected with a return pipe, and the other end of the return pipe is arranged on the outer side of the equipment box body; a plurality of net frames are arranged on the inner side of the drying box, the plurality of net frames divide the inner cavity of the drying box into a serpentine gas passage, the inner side of the net frame is provided with a filler groove, the filler groove is filled with a drying agent, and a plurality of fine holes are formed in the outer surface of the net frame and are in communication with the filler groove.

[0015] Preferably, the humidifying mechanism comprises a small humidifier, the inner side of the equipment box body is provided with a humidifier outer cylinder, the small humidifier is arranged on the inner side of the humidifier outer cylinder, and the upper end of the equipment box body is provided with a through hole vertically corresponding to the humidifier outer cylinder.

[0016] Preferably, the sensor assembly comprises a temperature sensor and a humidity sensor.

[0017] The present application has the following advantages compared with the prior art:

[0018] 1、The telescopic outer box capable of telescopic expansion can meet the test requirements of different height plants and different growth states of the same plants, and has a folding effect, and can be shrunk to reduce the occupation of space when not in use.

[0019] 2、The telescopic frame assembly and the plurality of springs arranged in cooperation can ensure the automatic shrinkage of the telescopic outer box when collecting gas, and ensure the normal discharge of the gas.

[0020] 3、The gas collecting mechanism can collect multiple gas samples, and after the gas collecting mechanism is disassembled after work, detection can be performed at the same time, thereby improving the detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a perspective structural schematic view of a volatile gas collecting device for identifying insect pathogenic fungi in a tea garden.

[0022] Figure 2 It is a schematic view of the internal structure of a volatile gas collecting device for identifying insect pathogenic fungi in a tea garden.

[0023] Figure 3 It is a schematic view of the internal structure of a collecting cylinder of a volatile gas collecting device for identifying insect pathogenic fungi in a tea garden.

[0024] Figure 4 It is a schematic view of the internal structure of a drying box of a volatile gas collecting device for identifying insect pathogenic fungi in a tea garden.

[0025] The reference numerals in the figure are: 1, outer box; 2, base; 3, collecting cylinder; 4, equipment box main body; 41, sealing cover; 5, drying box; 6, small gas pump; 7, semiconductor refrigerator; 8, humidifier outer cylinder; 9, electric heating wire; 10, first sealing ring; 11, lifting rod; 12, spring; 13, motor; 14, blade; 15, LED lamp; 161, first air pipe; 162, second air pipe; 171, first electromagnetic valve; 172, second electromagnetic valve; 18, support sleeve; 19, bottom fixed frame; 20, second sealing ring; 21, bolt; 22, butterfly nut; 23, servo motor; 24, piston plate; 25, third sealing ring; 26, threaded sleeve; 27, threaded rod; 28, movable sleeve; 29, guide rod; 30, gas outlet pipe; 31, valve; 32, mesh frame. DETAILED DESCRIPTION

[0026] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] like Figures 1-4 As shown in the figure, the present embodiment proposes a volatile gas collection device for the identification of insect pathogenic fungi in tea gardens, which includes a base 2, a telescopic outer box, a telescopic frame assembly, and a gas collection mechanism.

[0029] The equipment housing body is located in the middle of the base 2. The equipment housing body is equipped with a sensor assembly, a semiconductor cooler 7, an electric heating wire 9, a dehumidification mechanism, and a humidification mechanism. The sensor assembly includes a temperature sensor and a humidity sensor. The dehumidification mechanism includes a drying chamber 5 and a small air pump 6. Both the drying chamber 5 and the small air pump 6 are located inside the equipment housing body. The input end of the small air pump 6 is located on the outside of the equipment housing body, and its output end is connected to the inside of the drying chamber 5. A return pipe is connected to the drying chamber 5, and the other end of the return pipe is located at the... The outer side of the main body of the equipment box; the inner side of the drying box 5 is provided with multiple mesh frames 32, which divide the inner cavity of the drying box 5 into a serpentine gas channel. The inner side of the mesh frame 32 is provided with a packing groove, which is filled with desiccant. The outer surface of the mesh frame 32 is provided with several fine holes communicating with the packing groove. The humidification mechanism includes a small humidifier. The inner side of the main body of the equipment box is provided with a humidifier outer cylinder 8, and the small humidifier is located inside the humidifier outer cylinder 8. The upper end of the main body of the equipment box is provided with a through hole that is vertically corresponding to the humidifier outer cylinder 8.

[0030] The telescopic outer box includes multiple outer boxes 1 arranged coaxially. Except for the innermost outer box 1, the upper and lower ends of the other outer boxes 1 are open. The lower end of the innermost outer box 1 is open, and its upper end has a sealing structure. Adjacent outer boxes 1 are slidably connected. The bottom end of each outer box 1 is provided with a first sealing ring 10. The outermost outer box 1 has a detachable connection with the base 2. The telescopic frame assembly is installed on the base 2, and multiple springs 12 are connected between the upper end of the telescopic frame assembly and the innermost outer box 1.

[0031] The gas collecting mechanism comprises a collecting cylinder 3 and a plurality of piston plates 24, the collecting cylinder 3 is detachably installed on the telescopic outer box and communicates with the inner side of the telescopic outer box, the plurality of piston plates 24 are arranged side by side, the outer periphery of the piston plate 24 is provided with a third sealing ring 25, the collecting cylinder 3 is provided with a power assembly for driving the plurality of piston plates 24 to move synchronously, the power assembly comprises a servo motor 23, a threaded sleeve 26, a threaded rod 27, a movable sleeve 28 and a guide rod 29, wherein the plurality of piston plates 24 are connected with the threaded sleeve 26, the threaded rod 27 is rotatably installed on the inner side of the collecting cylinder 3, the threaded rod 27 is threadedly connected with the threaded sleeve 26, the servo motor 23 is installed on the collecting cylinder 3 and the output shaft thereof is connected with the threaded rod 27, the movable sleeve 28 penetrates through the plurality of piston plates 24, the guide rod 29 is arranged on the inner side of the collecting cylinder 3, and the bottom end of the guide rod 29 is slidably arranged on the inner side of the movable sleeve 28; a plurality of gas outlet pipes 30 are communicated with the collecting cylinder 3, and a valve 31 is installed on each of the plurality of gas outlet pipes 30.

[0032] The first air pipe 161 and the second air pipe 162 are communicated and arranged on the telescopic outer box, and the first electromagnetic valve 171 and the second electromagnetic valve 172 are respectively installed on the first air pipe 161 and the second air pipe 162; the inner side of the telescopic outer box is provided with the blade 14, and the motor 13 for driving the blade 14 to rotate is installed on the telescopic outer box; the motor 13 is started to work to drive the blade 14 to rotate, which has the following two effects: 1. The gas in the telescopic outer box can be stirred before sampling, so as to mix the upper gas and the lower gas and avoid that the substances in the gas are deposited at the bottom; 2. After the sampling work is completed, the first electromagnetic valve 171 and the second electromagnetic valve 172 are opened, so that the telescopic outer box communicates with the external gas, the blade 14 is driven to rotate, the discharge of the gas in the telescopic outer box is accelerated, and thus the next round of gas collecting and sampling work is facilitated.

[0033] The LED lamp 15 is installed on the inner upper end of the innermost outer box 1, and the LED lamp 15 can simulate sunlight.

[0034] Specifically, before testing, the whole plant is placed in the telescopic outer box. First, the telescopic outer box is separated from the base 2. It needs to be supplemented that, in order to improve the sealing performance between the telescopic outer box and the base 2, a bottom fixing frame 19 is arranged on the outermost outer box 1. A second sealing ring 20 is arranged at the bottom end of the bottom fixing frame 19. In order to facilitate the disassembly and assembly of the telescopic outer box and the base 2, a fixing part can be arranged to connect the bottom fixing frame 19 and the base 2. The fixing part can be a bolt 21 and a butterfly nut 22. The bolt 21 is connected with the base 2. A through hole is formed on the bottom fixing frame 19 for the bolt 21 to pass through. The butterfly nut 22 is screwed with the bolt 21, so that the telescopic outer box and the base 2 are separated. After the telescopic outer box is separated from the base 2, the plant is placed on the equipment box body. Finally, the telescopic outer box is installed and reset, so that the inside of the telescopic outer box forms a sealed structure. It needs to be noted that the telescopic outer box needs to be adjusted to a height suitable for placing the plant before being installed and reset.

[0035] Further, a PLC controller, a temperature sensor and a humidity sensor are installed in the equipment box body to monitor the temperature and humidity inside the telescopic outer box in real time and feed back signals to the PLC controller. The operator sets the allowed temperature range and humidity range on the PLC controller in advance, so as to better simulate the gas volatilization under various environments. When the detected temperature is lower than the set minimum value, the PLC controller controls the switch of the electric heating wire 9 to be turned on, so as to heat the air inside the telescopic outer box until the temperature rises to the set range. When the detected temperature is higher than the set maximum value, the PLC controller controls the switch of the semiconductor cooler 7 to be turned on. The cooling surface of the semiconductor cooler 7 is arranged on the outside of the equipment box body 4, so as to play an auxiliary cooling role. When the detected humidity is lower than the set minimum value, the small humidifier works to achieve the purpose of humidifying the air inside the telescopic outer box. When the detected air humidity is higher than the set maximum value, the small air pump 6 is started to work. First, the gas inside the telescopic outer box is pumped to the inside of the drying box 5. The gas passes through the inside of the drying box 5, and the drying agent particles arranged therein can absorb the water in the gas. The serpentine-shaped gas channel prolongs the passing time of the gas. The dehumidified gas finally reenters the inside of the telescopic outer box through the return pipe. Further, in order to facilitate the replacement of the drying agent inside the drying box 5, a cover plate is detachably arranged at the upper end of the drying box 5. After the cover plate is removed, the drying agent inside the mesh frame 32 can be taken out. It needs to be supplemented that, in order to facilitate the maintenance of the equipment inside the equipment box body, the equipment box body includes an equipment box body 4 and a sealing cover 41. The bottom end of the equipment box body 4 is provided with an opening for heat dissipation. The upper end of the equipment box body 4 is provided with an opening. The sealing cover 41 is buckled on the upper end of the equipment box body 4.

[0036] When sampling the gas inside the telescopic outer box, the power assembly is arranged to drive the plurality of piston plates 24 to move upward synchronously, and in the initial state, only the uppermost piston plate 24 is located inside the collecting cylinder 3, and the second piston plate 24 at the upper end is driven to move into the inside of the collecting cylinder 3, at this time, the gas is collected into the cavity formed between the two piston plates 24, and the plurality of piston plates 24 can be used for the equipment to perform multiple gas sampling work; it should be noted that the outer wall of the collecting cylinder 3 is provided with a thread at the bottom end, and a threaded hole is formed in the upper end of the innermost outer box 1, and the collecting cylinder 3 and the outer box 1 are detachably connected in a threaded connection manner.

[0037] During the movement of the piston plate 24, the gas inside the telescopic outer box is sucked into the inside of the collecting cylinder 3, at this time, the gas inside the telescopic outer box is reduced, and the telescopic outer box is contracted by a distance under the action of the gas pressure, and the spring 12 is arranged to ensure the smooth contraction of the telescopic outer box, so as to avoid the situation that the telescopic outer box is pressed, so that the gas can be collected smoothly.

[0038] Embodiment two

[0039] As shown in Figure 1 The telescopic frame assembly includes a lifting rod 11 and two telescopic rods, the lifting rod 11 is arranged above the telescopic outer box, the two telescopic rods are vertically arranged at two ends of the base 2, the telescopic rod includes a plurality of support sleeves 18 arranged coaxially, the bottom end of the support sleeve 18 is movably arranged in the inside of the support sleeve 18 at the outer side, the inner wall upper end and the outer wall lower end of the support sleeve 18 are provided with threads, the adjacent two support sleeves 18 are threadedly connected, and the upper end of the innermost support sleeve 18 is rotationally connected with the lifting rod 11; when adjusting the length of the telescopic rod, first, the lifting rod 11 is pulled upward to drive the plurality of support sleeves 18 to extend, and then the fixing work of the plurality of support sleeves 18 is sequentially completed from top to bottom, the upper end of the support sleeve 18 is held, the lower end of the support sleeve 18 is rotated, so that the two support sleeves 18 are threadedly connected, and then the length adjustment of the telescopic rod is completed according to the above method, and further, the outermost support sleeve 18 is rotationally installed on the bottom fixed frame 19.

[0040] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A collection device of volatile gas for identifying entomopathogenic fungi in a tea garden, characterized by, The base (2) is provided with a device box body (4) in the middle, and the device box body (4) is provided with a sensor assembly, a semiconductor refrigerator (7), an electric heating wire (9), a dehumidification mechanism and a humidification mechanism; The telescopic outer box (1) comprises a plurality of outer boxes (1) coaxially arranged. The upper and lower ends of the plurality of outer boxes (1) except the innermost outer box (1) are provided with openings, and the upper end of the innermost outer box (1) is provided with a sealing structure. The adjacent two outer boxes (1) are slidably connected. The bottom end of each outer box (1) is provided with a first sealing ring (10). The outermost outer box (1) and the base (2) are detachably connected. The telescopic frame assembly is installed on the base (2), and a plurality of springs (12) are connected between the upper end of the telescopic frame assembly and the innermost outer box (1). The gas collecting mechanism comprises a collecting cylinder (3) and a plurality of piston plates (24). The collecting cylinder (3) is detachably installed on the telescopic outer box (1) and communicates with the inner side of the telescopic outer box (1). The plurality of piston plates (24) are arranged side by side. The outer periphery of the piston plate (24) is provided with a third sealing ring (25). The collecting cylinder (3) is provided with a power assembly for driving the plurality of piston plates (24) to move synchronously. The collecting cylinder (3) is communicated with a plurality of gas outlet pipes (30), and the plurality of gas outlet pipes (30) are provided with valves (31).

2. The device for collecting volatile gas for identifying entomopathogenic fungi in a tea garden according to claim 1, characterized in that, The telescopic outer box (1) is provided with a first air pipe (161) and a second air pipe (162). The first air pipe (161) and the second air pipe (162) are respectively provided with a first electromagnetic valve (171) and a second electromagnetic valve (172).

3. The device for collecting volatile gas for identifying entomopathogenic fungi in a tea garden according to claim 1, characterized in that, The inner side of the telescopic outer box (1) is provided with a blade (14), and the telescopic outer box (1) is provided with a motor (13) for driving the blade (14) to rotate.

4. The device for collecting volatile gas for identifying entomopathogenic fungi in a tea garden according to claim 1, characterized in that, The telescopic frame assembly comprises a lifting rod (11) and two groups of telescopic rods. The lifting rod (11) is arranged above the telescopic outer box (1). The two telescopic rods are vertically arranged at the two ends of the base (2). The telescopic rod comprises a plurality of support sleeves (18) coaxially arranged. The bottom end of the support sleeve (18) is movably arranged in the inner side of the outer support sleeve (18). The inner wall upper end and the outer wall lower end of the support sleeve (18) are provided with threads. The adjacent two support sleeves (18) are threadedly connected. The upper end of the innermost support sleeve (18) is rotatably connected with the lifting rod (11).

5. The device for collecting volatile gas for identifying entomopathogenic fungi in a tea garden according to claim 1, characterized in that, The power assembly comprises a servo motor (23) (13), a threaded sleeve (26), a threaded rod (27), a movable sleeve (28) and a guide rod (29), wherein the plurality of piston plates (24) are connected with the threaded sleeve (26), the threaded rod (27) is rotatably installed on the inner side of the collecting cylinder body (3), the threaded rod (27) is threadedly connected with the threaded sleeve (26), the servo motor (23) (13) is installed on the collecting cylinder body (3) and the output shaft thereof is connected with the threaded rod (27), the movable sleeve (28) penetrates through the plurality of piston plates (24), and the guide rod (29) is arranged on the inner side of the collecting cylinder body (3) and the bottom end thereof is slidably arranged on the inner side of the movable sleeve (28).

6. The device for collecting volatile gas for identifying entomopathogenic fungi in a tea garden according to claim 1, characterized in that, The dehumidification mechanism comprises a drying box (5) and a small air pump (6), wherein the drying box (5) and the small air pump (6) are arranged on the inner side of the equipment box body (4), the input end of the small air pump (6) is arranged on the outer side of the equipment box body (4), the output end thereof is in communication with the inside of the drying box (5), the drying box (5) is connected with a return pipe, the other end of the return pipe is arranged on the outer side of the equipment box body (4), a plurality of net frames (32) are arranged on the inner side of the drying box (5), the plurality of net frames (32) divide the inner cavity of the drying box (5) into serpentine gas passages, the inner side of the net frame (32) is provided with a filler groove, the filler groove is filled with a drying agent, and a plurality of fine holes are formed in the outer surface of the net frame (32) and are in communication with the filler groove.

7. The device for collecting volatile gas for identifying entomopathogenic fungi in a tea garden according to claim 1, characterized in that, The humidification mechanism comprises a small humidifier, the inner side of the equipment box body (4) is provided with a humidifier outer cylinder (8), the small humidifier is arranged on the inner side of the humidifier outer cylinder (8), and the upper end of the equipment box body (4) is provided with a through hole vertically corresponding to the humidifier outer cylinder (8).

8. The device for collecting volatile gas for identifying entomopathogenic fungi in a tea garden according to claim 1, characterized in that, The sensor assembly comprises a temperature sensor and a humidity sensor.

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