Crispy melon volatile gas collecting device

Abstract

The invention relates to a gas collecting device, in particular to a crisp melon volatile gas collecting device which comprises a plurality of gas collecting assemblies arranged in a sealing box. The transverse adjusting assembly is arranged at the top of the inner cavity of the sealing box; the distance adjusting assembly is arranged on the transverse adjusting assembly; the height adjusting assembly is arranged on the distance adjusting assembly; by arranging the transverse adjusting assembly, the distance adjusting assembly and the height adjusting assembly, when the fragrance of the crisp melon is collected, the positions of the gas collecting assemblies can be adjusted through the transverse adjusting assembly, the distance between the gas collecting assemblies can be adjusted through the distance adjusting assembly, and the fragrance of the crisp melon can be collected through the final height adjusting assembly. The gas collecting assemblies are moved to different heights, gas collection at different positions is achieved, then the collected gas is detected at the same time, and therefore it is ensured that the gas in the sealing box is mixed evenly, and it is ensured that the detection result is more accurate.

Description

Technical Field

[0001] The invention relates to a gas collecting device, in particular to a volatile gas collecting device for crispy melons. Background Art

[0002] Sugua is a kind of thin-skinned melon, famous in the Yangtze and Huaihe River Basin for its "fragrant, crispy and sweet" characteristics. It is an excellent product for people to relieve heat and quench thirst, and has strong market demand and economic benefits.

[0003] Currently, research on the quality of melon fruit is becoming increasingly popular, but research on the aroma of melon is particularly difficult. Usually, gas chromatography is used to detect the components of volatile gases such as aromatic substances it contains.

[0004] When collecting the aroma of the existing crisp melon, a sealed box is first provided, and the vines of the crisp melon are placed in it. After a period of time, the air inside is extracted by a syringe and then tested. However, the device has a simple structure, and when extracting air, it is impossible to determine whether the air in the sealed box is mixed evenly. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned shortcomings and provide a volatile gas collection device for crisp melon.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A volatile gas collection device for crisp melons comprises a sealed box, a vine inlet hole is provided on the sealed box, a fan is arranged in the sealed box, a bottom plate is arranged at the bottom of the sealed box, a lifting mechanism is arranged at the bottom of the bottom plate, and further comprises:

[0008] A plurality of gas collecting components are arranged in the sealed box and used for collecting the gas in the sealed box;

[0009] A lateral adjustment component is disposed at the top of the inner cavity of the sealing box and is used to adjust the position of the gas collection component in the sealing box;

[0010] A spacing adjustment component, disposed on the lateral adjustment component, for adjusting the spacing between the gas collecting components;

[0011] The height adjustment component is arranged on the spacing adjustment component and is used to adjust the height of the gas collection component.

[0012] Furthermore, the lateral adjustment component includes a fixed track fixed in the sealing box, a crossbeam is slidably arranged on the fixed track, a driving shaft is rotatably arranged on the crossbeam, and the spacing adjustment component is connected to the driving shaft.

[0013] Furthermore, the spacing adjustment component includes a connecting plate connected to the driving shaft, vertical plates are provided at both ends of the connecting plate, a lead screw is rotatably provided in the vertical plate, a lifting slider is sleeved on the lead screw, a first connecting rod is provided between the two lifting sliders, a second movable block is sleeved on the first connecting rod, a fixed block is fixedly provided at the bottom of the vertical plate, a height adjustment component is provided at the bottom of the fixed block, a second connecting rod is provided between the two fixed blocks, a gas collecting component is sleeved on the second connecting rod, two driving rods are rotatably provided on the second movable block, a first movable block is provided at the top of the gas collecting component, and the bottom ends of the two driving rods are respectively rotatably connected to two adjacent first movable blocks.

[0014] Furthermore, the height adjustment assembly includes a movable slide rail connected to the gas collection assembly, a first telescopic frame is provided at one end of the movable slide rail, a second telescopic frame is provided at the other end of the movable slide rail, a first connecting block is fixedly provided on a fixed block close to the first telescopic frame, a second connecting block is fixedly provided on a fixed block close to the second telescopic frame, a vertical rod is provided at the bottom end of the first connecting block, a first mounting block is fixedly provided at the bottom end of the vertical rod, the first telescopic frame is rotatably connected to the first mounting block, a hydraulic rod is provided at the bottom end of the second connecting block, the movable end of the hydraulic rod is connected to the second mounting block, and the second telescopic frame is rotatably connected to the second mounting block.

[0015] Furthermore, the gas collection assembly includes a mounting frame located at the bottom of the first movable block, a telescopic sleeve is provided between the mounting frame and the first movable block, a fixed plate is provided on one side of the mounting frame, a gas collecting assembly is inserted in the fixed plate, a vacuum assembly is slidably provided on the top of the gas collecting assembly, a driving assembly is provided on the side of the mounting frame away from the gas collecting assembly, the movable end of the driving assembly is connected to a fixed sleeve, the fixed sleeve is sleeved on the vacuum assembly, and a limiting rod slidably connected to the movable slide rail is provided on the mounting frame.

[0016] Furthermore, the gas collecting assembly includes a gas collecting cylinder inserted in the fixing plate, the bottom end of the gas collecting cylinder is provided with an air inlet, and the air inlet is provided with a first non-return mechanism;

[0017] The vacuum assembly includes a vacuum cylinder inserted in a fixed sleeve, a vacuum pipe inserted in a gas collecting cylinder is provided at the bottom of the vacuum cylinder, a first piston is provided at the bottom of the vacuum pipe, a second non-return mechanism is provided in the first piston, and the structure of the second non-return mechanism is the same as that of the first non-return mechanism, a lifting rod is also slidably provided in the vacuum cylinder, a second piston is provided at the bottom end of the lifting rod, and a third non-return mechanism is also provided on one side of the vacuum cylinder.

[0018] Furthermore, a through hole is formed at the bottom of the first piston, and the second anti-return mechanism comprises a column located in the through hole, a baffle is provided at the bottom end of the column, and a limit spring is provided between the baffle and the column.

[0019] Furthermore, the third anti-return mechanism includes a sealing door, a fixed rotating shaft is provided on one side of the sealing door, a torsion spring is sleeved on the fixed rotating shaft, an electromagnetic plate is provided on the top of the sealing door, and an adsorption plate connected to the electromagnetic plate is provided on the sealing door.

[0020] Furthermore, the driving assembly includes a fixing frame fixed on the mounting frame, a disc is rotatably arranged on the fixing frame, a transverse plate slidably connected to the mounting frame is arranged at one end of the fixing sleeve, and a driving block slidably connected to the transverse plate is arranged on the disc.

[0021] Furthermore, the lifting mechanism includes a base, on which a first adjusting rod is rotatably arranged, a sleeve plate is arranged on the top of the first adjusting rod, a second adjusting rod is rotatably arranged on the sleeve plate, the second adjusting rod is rotatably connected to the base plate, a reinforcing rod is also arranged between the sleeve plates, and a bidirectional threaded rod is rotatably arranged on the reinforcing rod.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention is provided with a lateral adjustment component, a spacing adjustment component and a height adjustment component. When collecting the melon aroma, the position of the gas collecting component can be adjusted through the lateral adjustment component, the spacing adjustment component can adjust the distance between each gas collecting component, and the final height adjustment component can move each gas collecting component to a different height to collect gas at different positions, and then the collected gases are detected at the same time, thereby ensuring that the gas in the sealed box has been evenly mixed and ensuring that the detection result is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0026] Figure 2 is a schematic diagram of the structure of the gas collection assembly of the present invention;

[0027] Figure 3 is a schematic structural diagram of the gas collecting assembly of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the air extraction assembly of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the second non-return mechanism of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the third anti-return mechanism of the present invention;

[0031] Figure 7 is a schematic diagram of the structure of the drive assembly of the present invention;

[0032] Figure 8 is a schematic structural diagram of a lateral adjustment assembly of the present invention;

[0033] Fig. 9 It is a structural schematic diagram of the spacing adjustment component of the present invention;

[0034] Fig.10 is a schematic structural diagram of a height adjustment assembly of the present invention;

[0035] Fig.11 It is a structural schematic diagram of the lifting mechanism of the present invention.

[0036] In the figure: 1, sealing box; 11, inlet hole; 12, fan; 2, bottom plate; 3, gas collection assembly; 30, first movable block; 31, gas collection assembly; 311, gas collection cylinder; 312, air inlet; 313, first non-return mechanism; 32, air extraction assembly; 321, air extraction cylinder; 322, air extraction pipeline; 323, first piston; 324, second non-return mechanism; 3241, baffle; 3242, column; 3243, limit spring; 325, lifting rod; 326, second piston; 327, third non-return mechanism; 3271, sealing door; 3272, fixed shaft; 3273, torsion spring; 3274, electromagnetic plate; 3275, adsorption plate; 33, mounting frame; 34, fixed plate; 35, driving assembly; 351, fixed frame; 352, disc; 353, driving block; 36 , fixed sleeve; 361, horizontal plate; 37, limit rod; 38, telescopic sleeve; 4, lateral adjustment component; 41, fixed track; 42, crossbeam; 43, driving shaft; 5, spacing adjustment component; 51, connecting plate; 52, vertical plate; 53, lead screw; 54, lifting slider; 55, first connecting rod; 56, second movable block; 57, fixed block; 58, second connecting rod; 59, driving rod; 6, height adjustment component; 61, movable slide rail; 62, first telescopic frame; 63, second telescopic frame; 64, first connecting block; 65, vertical rod; 66, first mounting block; 67, second connecting block; 68, hydraulic rod; 69, second mounting block; 7, lifting mechanism; 71, base; 72, first adjusting rod; 73, sleeve plate; 74, second adjusting rod; 75, reinforcing rod; 76, two-way threaded rod. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0039] Reference Figure 1-Figure 11 As shown, a volatile gas collection device for crisp melon comprises a sealed box 1, which is a cube with a length, width and height of about 50 cm and no bottom. A temperature and humidity sensor display is arranged in the sealed box 1, and the temperature and humidity sensor probe is arranged in the center of the top inner part of the sealed box 1. A vine inlet hole 11 is opened on the sealed box 1, and the vines of the crisp melon extend into the sealed box 1 through the vine inlet hole 11. A fan 12 is also arranged in the sealed box 1 for stirring the gas in the sealed box 1. The power supply interface of the fan 12 and the temperature and humidity sensor is arranged at the center of the top outer part of the sealed box 1. The sealing box 1 is provided with a bottom plate 2 at the bottom, the outer layer of the bottom plate 2 is slightly larger than the sealing box 1 in length and width, and the height is about 5 cm. The bottom plate 2 is surrounded by two inner and outer layers, and the length and width of the sealing box 1 are between the length and width of the inner and outer layers of the bottom plate 2, so that the sealing box 1 can be completely inserted between the inner and outer layers of the bottom plate 2 and water-sealed. A soft sponge is laid on the center of the bottom plate 2 to prevent mechanical damage. A lifting mechanism 7 is provided at the bottom of the bottom plate 2 to adapt to the spatial height of the crisp melon to prevent the crisp melon from being mechanically damaged or falling off. It also includes:

[0040] A plurality of gas collecting components 3 are arranged in the sealing box 1 and are used to collect the gas in the sealing box 1;

[0041] A lateral adjustment component 4 is disposed at the top of the inner cavity of the sealing box 1 and is used to adjust the position of the gas collecting component 3 in the sealing box 1;

[0042] A spacing adjustment component 5 is provided on the lateral adjustment component 4 and is used to adjust the spacing between the gas collecting components 3;

[0043] The height adjustment component 6 is arranged on the spacing adjustment component 5, and is used to adjust the height of the gas collecting component 3. The position of the gas collecting component 3 can be adjusted by the lateral adjustment component 4, the spacing adjustment component 5 and the height adjustment component 6, so that all the gas collecting components 3 collect gas at different positions in the sealing box 1, thereby obtaining multiple gas samples at the same time, and it can also be used to determine whether the gas in the sealing box 1 is evenly mixed to ensure the accuracy of the data.

[0044] In one embodiment, the lateral adjustment component 4 includes a fixed track 41 fixed in the sealing box 1, a crossbeam 42 is slidably arranged on the fixed track 41, a driving shaft 43 is rotatably arranged on the crossbeam 42, and the spacing adjustment component 5 is connected to the driving shaft 43;

[0045] The crossbeam 42 can move forward and backward along the fixed track 41 , and then the crossbeam 42 can be driven to rotate by the driving shaft 43 , thereby changing the position of the gas collection assembly 3 .

[0046] In one embodiment, the spacing adjustment component 5 includes a connecting plate 51 connected to the driving shaft 43, vertical plates 52 are provided at both ends of the connecting plate 51, a lead screw 53 is rotatably provided in the vertical plate 52, a lifting slider 54 is sleeved on the lead screw 53, a first connecting rod 55 is provided between the two lifting sliders 54, a second movable block 56 is sleeved on the first connecting rod 55, a fixed block 57 is fixedly provided at the bottom of the vertical plate 52, a height adjustment component 6 is provided at the bottom of the fixed block 57, a second connecting rod 58 is provided between the two fixed blocks 57, a gas collection component 3 is sleeved on the second connecting rod 58, two driving rods 59 are rotatably provided on the second movable block 56, a first movable block 30 is provided at the top of the gas collection component 3, and the bottom ends of the two driving rods 59 are respectively rotatably connected to two adjacent first movable blocks 30;

[0047] By rotating the lead screw 53, the second movable block 56 can be driven downward by the first connecting rod 55, and the second movable block 56 pushes the driving rod 59 downward to deflect, wherein the middle first movable block 30 is fixed, thereby pushing each gas collection component 3 away from each other and adjusting the spacing between each gas collection component 3.

[0048] In one embodiment, the height adjustment assembly 6 includes a movable slide rail 61 connected to the gas collection assembly 3, a first telescopic frame 62 is provided at one end of the movable slide rail 61, a second telescopic frame 63 is provided at the other end of the movable slide rail 61, a first connecting block 64 is fixedly provided on the fixed block 57 close to the first telescopic frame 62, a second connecting block 67 is fixedly provided on the fixed block 57 close to the second telescopic frame 63, a vertical rod 65 is provided at the bottom end of the first connecting block 64, a first mounting block 66 is fixedly provided at the bottom end of the vertical rod 65, the first telescopic frame 62 is rotatably connected to the first mounting block 66, a hydraulic rod 68 is provided at the bottom end of the second connecting block 67, a movable end of the hydraulic rod 68 is connected to the second mounting block 69, and the second telescopic frame 63 is rotatably connected to the second mounting block 69;

[0049] The second mounting block 69 is pushed downward by the hydraulic rod 68, and at this time, the movable slide rail 61 can also be deflected. At the same time, the first telescopic frame 62 and the second telescopic frame 63 at both ends of the movable slide rail 61 will also be stretched, so that each gas collection component 3 can be adjusted to different heights to collect gas at different positions in the sealing box 1.

[0050] In one embodiment, the gas collection assembly 3 includes a mounting frame 33 located at the bottom of the first movable block 30, and a telescopic sleeve 38 is further provided between the mounting frame 33 and the first movable block 30. Since the gas collection assembly 3 will change its height through the movable slide rail 61, the telescopic sleeve 38 can be used to make an adaptive change at this time. A fixing plate 34 is provided on one side of the mounting frame 33, and a gas collecting assembly 31 is inserted into the fixing plate 34. A gas extraction assembly 32 is slidably provided on the top of the gas collecting assembly 31. A driving assembly 35 is further provided on the side of the mounting frame 33 away from the gas collecting assembly 31. The movable end of the driving assembly 35 is connected to a fixing sleeve 36, and the fixing sleeve 36 is sleeved on the gas extraction assembly 32. A limiting rod 37 slidably connected to the movable slide rail 61 is provided on the mounting frame 33.

[0051] When gas needs to be collected, the driving assembly 35 drives the exhaust assembly 32 to move upward, and the gas in the sealing box 1 first enters the gas collecting assembly 31, and then enters the exhaust assembly 32 for collection under the drive of the exhaust assembly 32.

[0052] In one embodiment, the gas collecting assembly 31 includes a gas collecting cylinder 311 inserted in the fixing plate 34, and a gas inlet 312 is provided at the bottom end of the gas collecting cylinder 311, and a first non-return mechanism 313 is provided in the gas inlet 312;

[0053] The air extraction assembly 32 includes an air extraction cylinder 321 inserted in the fixed sleeve 36, and an air extraction pipe 322 inserted in the air collecting cylinder 311 is provided at the bottom end of the air extraction cylinder 321, and a first piston 323 is provided at the bottom end of the air extraction pipe 322, and the first piston 323 is closely attached to the inner wall of the air collecting cylinder 311, so as to isolate the upper and lower spaces of the air collecting cylinder 311, and a second non-return mechanism 324 is provided in the first piston 323, and the structure of the second non-return mechanism 324 is the same as that of the first non-return mechanism 313, and a lifting rod 325 is also slidably provided in the air extraction cylinder 321, and a second piston 326 is provided at the bottom end of the lifting rod 325, and the second piston 326 is similar to the first piston 323, and both of them realize the isolation of the upper and lower spaces, and a third non-return mechanism 327 is also provided on one side of the air extraction cylinder 321;

[0054] When pumping air, the driving assembly 35 will drive the entire air pumping assembly 32 to move upward. At this time, the air pumping pipe 322 at the bottom of the air pumping cylinder 321 will drive the first piston 323 to move upward, and the gas will enter the gas collecting cylinder 311 from the air inlet 312 and through the first non-return mechanism 313. The first non-return mechanism 313 can prevent the gas from being discharged from the air inlet 312; after the gas enters the gas collecting cylinder 311, the driving assembly 35 will push the air pumping assembly 32 to move downward, and the gas will enter the air pumping cylinder 321 from the air pumping pipe 322. The second non-return mechanism 324 can prevent the gas from returning to the gas collecting cylinder 311 through the air pumping cylinder 321;

[0055] An air outlet can also be opened on the side wall of the vacuum cylinder 321, and a through hole that can be aligned with the air outlet is also opened on the side wall of the sealing box 1. This through hole is sealed initially. After collecting the gas, all the gas collection components 3 return to the initial state, that is, all the gas collection components 3 return to the highest point and then move toward the through hole. At this time, a negative pressure vacuum device can be inserted from the outside, and the pipe of this device is extended from the through hole, and it can be directly inserted into the vacuum cylinder 321 to open the third non-return mechanism 327 to extract the gas.

[0056] In one embodiment, a through hole is formed at the bottom of the first piston 323, and the second anti-return mechanism 324 includes a column 3242 located in the through hole, a baffle 3241 is provided at the bottom end of the column 3242, and a limit spring 3243 is provided between the baffle 3241 and the column 3242;

[0057] When pumping air, the first piston 323 moves upward, and negative pressure is generated in the gas collecting cylinder 311, which will force the baffle 3241 to fit tightly against the bottom of the through hole, blocking the exhaust pipe 322, thereby allowing the gas to enter the gas collecting cylinder 311 first. When the first piston 323 moves downward, the gas collecting cylinder 311 will form a closed space under the obstruction of the first non-return mechanism 313, and the gas will push the baffle 3241 upward to enter the exhaust cylinder 321.

[0058] In one embodiment, a notch is provided on the inner wall of the vacuum cylinder 321, and the third non-return mechanism 327 includes a sealing door 3271 rotating in the notch, a fixed rotating shaft 3272 is provided on one side of the sealing door 3271, and a torsion spring 3273 is sleeved on the fixed rotating shaft 3272 to keep the sealing door 3271 in a closed state, and an electromagnetic plate 3274 is provided on the top of the sealing door 3271, that is, on the notch, and an adsorption plate 3275 connected to the electromagnetic plate 3274 is provided on the sealing door 3271, and a switch is provided on the air outlet. When the external negative pressure tube extends inward along the air outlet, the switch will be triggered to cut off the power to the electromagnetic plate 3274, so that the negative pressure tube can be directly inserted into the vacuum cylinder 321.

[0059] In one embodiment, the driving assembly 35 includes a fixing frame 351 fixed on the mounting frame 33, a disc 352 is rotatably arranged on the fixing frame 351, a horizontal plate 361 slidably connected to the mounting frame 33 is arranged at one end of the fixing sleeve 36, and a driving block 353 slidably connected to the horizontal plate 361 is arranged on the disc 352;

[0060] When in use, by rotating the disc 352, the disc 352 will first drive the driving block 353 to rotate upward from the bottom, and the driving block 353 will also drive the vacuum cylinder 321 to move upward through the fixed sleeve 36. When the driving block 353 rotates downward, it will drive the vacuum cylinder 321 to move downward, thereby transferring the gas in the gas collecting cylinder 311 to the vacuum cylinder 321.

[0061] In one embodiment, the lifting mechanism 7 includes a base 71, on which a first adjusting rod 72 is rotatably provided, a sleeve plate 73 is provided at the top of the first adjusting rod 72, on which a second adjusting rod 74 is rotatably provided, the second adjusting rod 74 is rotatably connected to the bottom plate 2, a reinforcing rod 75 is further provided between the sleeve plates 73, and a bidirectional threaded rod 76 is rotatably provided on the reinforcing rod 75;

[0062] By rotating the bidirectional threaded rod 76, the reinforcing rods 75 on both sides can be driven to move inward or outward at the same time, so as to adjust the height of the entire device to adapt to the spatial height of the melon to prevent the melon from being mechanically damaged or falling off.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A volatile gas collection device for crisp melons, comprising a sealed box (1), wherein the sealed box (1) is provided with a vine inlet hole (11), a fan (12) is further provided in the sealed box (1), a bottom plate (2) is provided at the bottom of the sealed box (1), and a lifting mechanism (7) is provided at the bottom of the bottom plate (2), wherein: Also includes: A plurality of gas collecting components (3) are arranged in the sealed box (1) and are used to collect gas in the sealed box (1); A lateral adjustment component (4) is arranged at the top of the inner cavity of the sealing box (1) and is used to adjust the position of the gas collection component (3) in the sealing box (1); A spacing adjustment component (5) is arranged on the lateral adjustment component (4) and is used to adjust the spacing between the gas collection components (3); A height adjustment component (6) is arranged on the spacing adjustment component (5) and is used to adjust the height of the gas collection component (3).

2. The volatile gas collection device of claim 1, characterized in that: The lateral adjustment component (4) comprises a fixed track (41) fixed in the sealing box (1), a crossbeam (42) is slidably arranged on the fixed track (41), a driving shaft (43) is rotatably arranged on the crossbeam (42), and the spacing adjustment component (5) is connected to the driving shaft (43).

3. The volatile gas collection device of claim 2, characterized in that: The spacing adjustment component (5) comprises a connecting plate (51) connected to the driving shaft (43), vertical plates (52) are arranged at both ends of the connecting plate (51), a lead screw (53) is rotatably arranged in the vertical plate (52), a lifting slider (54) is sleeved on the lead screw (53), a first connecting rod (55) is arranged between the two lifting sliders (54), a second movable block (56) is sleeved on the first connecting rod (55), a fixed block (57) is fixedly arranged at the bottom of the vertical plate (52), a height adjustment component (6) is arranged at the bottom of the fixed block (57), a second connecting rod (58) is arranged between the two fixed blocks (57), a gas collection component (3) is sleeved on the second connecting rod (58), two driving rods (59) are rotatably arranged on the second movable block (56), a first movable block (30) is arranged at the top of the gas collection component (3), and the bottom ends of the two driving rods (59) are respectively rotatably connected to two adjacent first movable blocks (30).

4. The volatile gas collection device of claim 3, characterized in that: The height adjustment assembly (6) comprises a movable slide rail (61) connected to the gas collection assembly (3); a first telescopic frame (62) is arranged at one end of the movable slide rail (61); a second telescopic frame (63) is arranged at the other end of the movable slide rail (61); a first connecting block (64) is fixedly arranged on a fixed block (57) close to the first telescopic frame (62); a second connecting block (67) is fixedly arranged on a fixed block (57) close to the second telescopic frame (63); a vertical rod (65) is arranged at the bottom end of the first connecting block (64); a first mounting block (66) is fixedly arranged at the bottom end of the vertical rod (65); the first telescopic frame (62) is rotatably connected to the first mounting block (66); a hydraulic rod (68) is arranged at the bottom end of the second connecting block (67); a movable end of the hydraulic rod (68) is connected to the second mounting block (69); and the second telescopic frame (63) is rotatably connected to the second mounting block (69).

5. The volatile gas collection device of claim 4, characterized in that: The gas collection assembly (3) comprises a mounting frame (33) located at the bottom of the first movable block (30), a telescopic sleeve (38) is further arranged between the mounting frame (33) and the first movable block (30), a fixing plate (34) is arranged on one side of the mounting frame (33), a gas collection assembly (31) is inserted in the fixing plate (34), a gas extraction assembly (32) is slidably arranged on the top of the gas collection assembly (31), a driving assembly (35) is further arranged on the side of the mounting frame (33) away from the gas collection assembly (31), a fixing sleeve (36) is connected to the movable end of the driving assembly (35), the fixing sleeve (36) is sleeved on the gas extraction assembly (32), and a limiting rod (37) slidably connected to the movable slide rail (61) is arranged on the mounting frame (33).

6. The volatile gas collection device of claim 5, characterized in that: The gas collecting assembly (31) comprises a gas collecting cylinder (311) inserted in a fixing plate (34); a gas inlet (312) is provided at the bottom end of the gas collecting cylinder (311); and a first non-return mechanism (313) is provided in the gas inlet (312); The air extraction assembly (32) comprises an air extraction cylinder (321) inserted into a fixed sleeve (36); the bottom end of the air extraction cylinder (321) is provided with an air extraction pipe (322) inserted into an air collecting cylinder (311); the bottom end of the air extraction pipe (322) is provided with a first piston (323); a second non-return mechanism (324) is provided in the first piston (323); and the structure of the second non-return mechanism (324) is the same as that of the first non-return mechanism (313); a lifting rod (325) is also slidably provided in the air extraction cylinder (321); a second piston (326) is provided at the bottom end of the lifting rod (325); and a third non-return mechanism (327) is also provided on one side of the air extraction cylinder (321).

7. The volatile gas collection device of claim 6, characterized in that: A through hole is formed at the bottom of the first piston (323), and the second anti-return mechanism (324) comprises a column (3242) located in the through hole. A baffle (3241) is provided at the bottom end of the column (3242), and a limit spring (3243) is provided between the baffle (3241) and the column (3242).

8. The device for collecting volatile gas from crisp melon according to claim 6, characterized in that: The third anti-return mechanism (327) comprises a sealing door (3271), a fixed rotating shaft (3272) is arranged on one side of the sealing door (3271), a torsion spring (3273) is sleeved on the fixed rotating shaft (3272), an electromagnetic plate (3274) is arranged at the top end of the sealing door (3271), and an adsorption plate (3275) connected to the electromagnetic plate (3274) is arranged on the sealing door (3271).

9. The volatile gas collection device of claim 5, characterized in that: The driving assembly (35) comprises a fixing frame (351) fixed on the mounting frame (33), a disc (352) being rotatably arranged on the fixing frame (351), a transverse plate (361) being slidably connected to the mounting frame (33) being arranged at one end of the fixing sleeve (36), and a driving block (353) being slidably connected to the transverse plate (361) being arranged on the disc (352).

10. The volatile gas collection device of claim 1, characterized in that: The lifting mechanism (7) comprises a base (71), a first adjusting rod (72) is rotatably provided on the base (71), a sleeve plate (73) is provided at the top end of the first adjusting rod (72), a second adjusting rod (74) is rotatably provided on the sleeve plate (73), the second adjusting rod (74) is rotatably connected to the bottom plate (2), a reinforcing rod (75) is further provided between the sleeve plates (73), and a bidirectional threaded rod (76) is rotatably provided on the reinforcing rod (75).

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