Wheat seed germination activity testing device and method for different accumulated temperature conditions

Abstract

The invention belongs to the technical field of wheat seed germination activity testing, and discloses a wheat seed germination activity testing device for different accumulated temperature conditions, which comprises a wheat cultivation mechanism and a ventilation mechanism, the ventilation mechanism is arranged in the wheat cultivation mechanism; the wheat cultivation mechanism comprises a cultivation box, two cultivation chambers are arranged in the cultivation box, an air inlet fan is installed above the cultivation box, an air filter element is installed at the top end of the air inlet fan, and the bottom of the air inlet fan is connected with a ventilation box located in the cultivation box. According to the design, in the air inlet process, entering air can be heated or cooled according to the internal and external temperature difference, so that the loss of the temperature in the original culture chamber caused by entering of external air in the air exchange process is reduced, the stability of constant temperature in the culture chamber is guaranteed, and the influence on wheat seed germination and cultivation is avoided; the accuracy of wheat seed germination activity test data is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of wheat seed germination vitality testing, in particular to a wheat seed germination vitality testing device and method for different accumulated temperature conditions. Background Art

[0002] The wheat seed germination vitality testing device refers to the device used in the wheat seed germination experiment. At present, for the wheat seed germination vitality test, the wheat seeds are usually planted in a culture container and then placed in a constant temperature box in different temperature zones. The constant temperature box is used to simulate the growth environment of the wheat seeds in the outside world, and the germination vitality of the wheat seeds under non-heat accumulation conditions is observed. In the process of wheat seed cultivation, sufficient fresh air is usually required. In the process of introducing outside air for ventilation in the existing constant temperature box, due to the temperature difference between the temperature of the outside air and the temperature inside the constant temperature box, the temperature balance inside the constant temperature box will be broken during the ventilation process of the constant temperature box, so that the temperature inside the box cannot maintain its original state during the ventilation process, which will affect the germination cultivation of wheat seeds, and then reduce the accuracy of the wheat seed germination vitality test data.

[0003] Therefore, a wheat seed germination vitality testing device for different accumulated temperature conditions is proposed to solve the above problems. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a device and method for testing the germination vitality of wheat seeds under different accumulated temperature conditions.

[0005] To achieve the above object, the present invention provides the following technical solutions: a wheat seed germination vitality testing device for different accumulated temperature conditions, comprising a wheat cultivation mechanism and a ventilation mechanism; The ventilation mechanism is arranged in the wheat cultivation mechanism; The wheat cultivation mechanism comprises a culture box, wherein two culture chambers are arranged in the culture box, an air inlet fan is installed above the culture box, an air filter is installed at the top of the air inlet fan, a ventilation box located in the culture box is connected to the bottom of the air inlet fan, a temperature and humidity control constant temperature and moisture retention component is arranged inside the culture chamber, and a ventilation plate is installed below the inside of the culture chamber; The ventilation mechanism comprises a water reservoir, which is installed above the culture chamber, and a plurality of corrugated hoses which can be communicated with the ventilation box are installed in the water reservoir, and the bottom end of the corrugated hose is connected with a water outlet, and a porous plate is installed in the water outlet, and the water reservoir is filled with water, and a temperature control plate is installed below the inside of the water reservoir, and an air passage which can be communicated with the inside of the water reservoir is provided on one side of the inside of the water reservoir, and an air cylinder which can be communicated with the air passage is installed below the water reservoir, and a piston is sleeved in the air cylinder, and a spring 1 is connected to one side of the inside of the air cylinder, and the other end of the spring 1 is connected to the piston, and four surrounding limit rods are connected to one side of the inside of the air cylinder, and the limit rods pass through the piston, and a desiccant group is sleeved on the other side of the inside of the air cylinder, and a mesh cover which can fix the desiccant group is hinged in the air cylinder, and a magnetic suction block 1 is connected to the front of the mesh cover, and a magnetic suction block 2 which can be attracted to the magnetic suction block 1 is connected to the air cylinder.

[0006] Preferably, the bottom of the gas cylinder is connected to an air inlet pipe, the bottom end of the air inlet pipe passes through the ventilation plate and extends to the bottom of the culture chamber and is provided with a one-way valve 1, a plurality of exhaust holes that can be connected to the outside world are opened around one side of the gas cylinder, and a one-way valve 2 that can close the exhaust holes is provided on one side of the gas cylinder.

[0007] Preferably, an electromagnetic push rod 1 is provided at the connection between the gas cylinder and the airway, and the output end of the electromagnetic push rod 1 is connected to a valve that can close the connection between the gas cylinder and the airway.

[0008] Preferably, a porous disk 1 located between the piston and the desiccant group is installed in the air cylinder, the other end of the limit rod is connected to the porous disk 1, and a porous disk 2 is movably installed on the other side of the porous disk 1, the circular holes on the porous disk 1 and the porous disk 2 are staggered with each other, and an arc-shaped toothed plate located in the inner wall of the air cylinder is connected below the outside of the porous disk 2, and the bottom of the air cylinder is connected to a gear driven by a motor, and the gear is meshed with the arc-shaped toothed plate.

[0009] Preferably, a second electromagnetic push rod is installed on the back of the gas cylinder, and the output end of the second electromagnetic push rod is connected to a sealing cover capable of sealing the desiccant group.

[0010] Preferably, an adjusting mechanism is also included, which is arranged in the wheat cultivating mechanism and the ventilation mechanism, and the adjusting mechanism includes four fixing sleeves, which are respectively connected to the outside of four limit rods, and the internal movable sleeve of the fixing sleeve is provided with a top sleeve located outside the limit rod, one side of the top sleeve is connected with spring 2, and the other end of the spring 2 is connected to the inner wall of the air cylinder, and blocks that can be clamped in the top sleeve are slidably installed on both sides of the fixing sleeve, and spring 3 is connected to the block, and the other end of the spring 3 is connected to the inner wall of the fixing sleeve, and inclined plane blocks that can abut against the inclined plane of the block are slidably installed on the internal sides of the fixing sleeve, and the other side of the inclined plane block is connected to a movable rod embedded in the inner wall of the air cylinder, and the other end of the movable rod is connected to a connecting plate embedded in the inner wall of the air cylinder, and the outer side of the connecting plate is connected with a hemispherical block, and the outer sleeve of the movable rod is provided with a tension spring, one end of the tension spring is connected to the inclined plane block, and the other end of the tension spring is connected to the inner wall of the fixing sleeve.

[0011] Preferably, a toothed disc is movably mounted on the outward end of the air cylinder, arc grooves 2 are opened on the upper and lower parts of the toothed disc, arc grooves 1 are opened on both sides of the toothed disc, four hemispherical blocks are provided, and the four hemispherical blocks are respectively located in arc grooves 2 and 1.

[0012] Preferably, a connecting rod is connected to the top of the water outlet, the top end of the connecting rod extends to the outside of the incubator and is connected to a lifting plate that can be driven by an electric cylinder, a bent pipe is connected to one side of the lifting plate, the bottom end of the bent pipe is connected to a toothed pressure plate that can engage with a toothed disc, and protective covers located outside the toothed disc and the toothed pressure plate are connected to both sides of the incubator.

[0013] Preferably, the following steps are performed: S1: planting a number of wheat seeds in two culture containers respectively, and then placing them on ventilation plates in two culture chambers respectively, and controlling the temperatures in the two culture chambers respectively by means of a constant temperature and moisturizing component so that the temperatures in the two culture chambers are different; S2: By comparing the outside temperature with the temperature inside the culture chamber, it is determined whether the outside temperature is lower or higher than the temperature inside the culture chamber. Under the action of the temperature control board, the temperature of the water inside the water reservoir can be controlled; S3: During ventilation, due to the operation of the air filter, outside air can be introduced into the ventilation box after being filtered by the air filter, and then enter the water in the reservoir through the corrugated hose and the water outlet. When the outside air passes through the water outlet, it will be divided by the porous plates, reducing the volume of air bubbles in the water and increasing the number of bubbles, so that the air can evenly contact the water for heat exchange; S4: As the bubbles float to the liquid surface and burst, the heated or cooled air will be located above the water reservoir, and then enter the air cylinder along the air duct. The air passing through the water body is dehumidified by the desiccant group and then discharged into the culture room.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention can control the temperature of the water body inside the water reservoir by arranging a water reservoir and a desiccant group under the action of a temperature control plate. During ventilation, due to the operation of an air filter element, outside air can be introduced and filtered by the air filter element before entering the ventilation box, and then enters the water body in the water reservoir through a corrugated hose and a water outlet head. When the outside air passes through the water outlet head, it will be divided by the porous plates, reducing the volume of air bubbles in the water body and increasing the number of bubbles, so that the air can evenly contact the water body for heat exchange. As the bubbles float to the liquid surface and burst, the heated or cooled air It will be located above the water reservoir, and then enter the air cylinder along the air duct, and then the air passing through the water body will be dehumidified by the desiccant group and discharged into the culture room to avoid the increase of humidity inside the culture room, which is beneficial to maintaining the humidity balance in the culture room. During the air intake process, this design can heat or cool the incoming air according to the temperature difference between the inside and the outside, so as to reduce the entry of external gas during the ventilation process, which leads to the loss of the original temperature in the culture room, ensure the stability of the constant temperature inside the culture room, avoid affecting the germination and cultivation of wheat seeds, and improve the accuracy of the wheat seed germination vitality test data.

[0015] The present invention provides a porous disk 1 and a porous disk 2. When the air in the water reservoir enters the air cylinder along the airway, the air pressure in the air cylinder increases, and the piston is pushed to move outward. At the same time, the spring 1 is compressed. When the spring 1 moves to the maximum position, the operation of the electromagnetic push rod 1 drives the valve to move to block the connection between the airway and the air cylinder. Then the motor drives the gear to rotate, and meshes and drives the arc-shaped toothed plate and the porous disk 2 to rotate on the porous disk 1, so that the circular holes on the porous disk 1 and the porous disk 2 are connected to each other. At the same time, the electromagnetic push rod 2 runs, driving the sealing cover to move and open, and releasing the sealing of the desiccant group. At this time, under the elastic force recovery effect of the spring 1, the gas can be discharged to the desiccant group through the circular holes on the porous disk 1 and the porous disk 2. When the air heated by the outside enters the air cylinder, the gas will be evenly distributed in the air cylinder. At the same time, the design of the circular holes on the porous disk 1 and the porous disk 2 can make the gas evenly pass through the desiccant group, ensuring that the desiccant group as a whole can be evenly and reasonably used, thereby avoiding the premature failure of the desiccant group due to the frequent use of the part during use.

[0016] The present invention arranges a hemispherical block and a toothed disc. When the difference between the outside temperature and the temperature inside the culture chamber decreases, the control end drives the lifting plate, the connecting rod and the water outlet head to rise through the electric cylinder. At the same time, the height of the water outlet head is adjusted according to the size of the difference. When the difference decreases and the height of the water outlet head is increased, the rising distance of the bubbles sprayed by the water outlet head in the water body is shortened, and the contact heat exchange time between the air and the water body is shortened, thereby improving the overall ventilation efficiency. Due to the rise of the lifting plate, the elbow and the toothed pressure plate can be driven to move upward, and the toothed pressure plate is engaged to drive the toothed disc to rotate, so that the hemispherical block and the toothed pressure plate can move upward, and the toothed pressure plate can be ... The ball block is separated from the interior of arc groove 1 or arc groove 2, and is squeezed inward by the toothed disc to shrink, and the top sleeve is released. At this time, spring 2, which is in a compressed state, will push the top sleeve to move and abut against the piston due to the restoring effect of the elastic force, thereby increasing the reset elastic force of the piston, thereby increasing the speed at which the piston pushes air into the culture chamber, and at the same time accelerating the speed at which the air passes through the desiccant group, thereby reducing the dehumidification intensity of the air by the desiccant group. Since the contact time between air and water is shortened, the humidity in the air is relatively reduced, so the dehumidification intensity of the air also needs to be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a cross-sectional structural schematic diagram of the present invention; Figure 3 It is a schematic cross-sectional view of the water storage tank of the present invention; Figure 4 It is a structural schematic diagram of the toothed disc of the present invention; Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at point A in the middle; Figure 6 It is a schematic cross-sectional structure diagram of the water outlet head of the present invention; Figure 7 It is a schematic cross-sectional structural diagram of the fixing sleeve of the present invention; Figure 8 for Figure 7 A schematic diagram of the local enlarged structure at B in the middle; Fig. 9 It is a structural schematic diagram of the connecting plate of the present invention; Fig.10 for Fig. 9 Schematic diagram of the local enlarged structure at C in the middle; Fig.11 It is a schematic cross-sectional view of the gas cylinder of the present invention; Fig.12 It is a schematic diagram of the backpack structure of the air pump of the present invention; Fig.13 It is a schematic cross-sectional structural diagram of the net cover of the present invention; Fig.14It is a schematic diagram of the structure of the porous disk 2 of the present invention; Fig.15 It is a schematic structural diagram of a porous disk 1 of the present invention.

[0018] In the figure: 1. wheat cultivation mechanism; 11. incubator; 12. incubator; 13. air intake fan; 14. ventilation box; 15. air filter element; 16. constant temperature and moisturizing component; 17. ventilation plate; 2. ventilation mechanism; 21. reservoir; 22. corrugated hose; 23. water outlet; 24. porous plate; 25. temperature control plate; 26. airway; 27. air cylinder; 28. piston; 29. ​​spring 1; 210. air inlet pipe; 211. one-way valve 1; 212. exhaust hole; 213. one-way valve 2; 214. electromagnetic push rod 1; 215. valve; 216. porous disk 1; 217. porous disk 2; 218. Arc tooth plate; 219, gear; 220, desiccant group; 221, mesh cover; 222, magnetic block one; 223, magnetic block two; 224, electromagnetic push rod two; 225, sealing cover; 3, adjustment mechanism; 226, limit rod; 31, lifting plate; 32, connecting rod; 33, elbow; 34, tooth pressure plate; 35, fixed sleeve; 36, spring two; 37, top sleeve; 38, clamping block; 39, spring three; 310, inclined block; 311, movable rod; 312, connecting plate; 313, hemispherical block; 314, tension spring; 315, toothed disc; 316, arc groove one; 317, arc groove two; 318, protective cover. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figures 1 to 15 As shown, the present invention provides a wheat seed germination vitality testing device for different accumulated temperature conditions, comprising a wheat cultivation mechanism 1 and a ventilation mechanism 2; The ventilation mechanism 2 is arranged in the wheat cultivation mechanism 1; The wheat cultivation mechanism 1 comprises a culture box 11, two culture chambers 12 are arranged in the culture box 11, an air inlet fan 13 is installed above the culture box 11, an air filter element 15 is installed at the top of the air inlet fan 13, a ventilation box 14 located in the culture box 11 is connected to the bottom of the air inlet fan 13, a temperature and humidity control constant temperature and moisturizing component 16 is arranged inside the culture chamber 12, and a ventilation plate 17 is installed below the inside of the culture chamber 12; The ventilation mechanism 2 includes a water reservoir 21, which is installed above the culture chamber 12. A plurality of corrugated hoses 22 that can communicate with the ventilation box 14 are installed in the water reservoir 21. The bottom end of the corrugated hose 22 is connected to a water outlet 23, and a porous plate 24 is installed in the water outlet 23. The water reservoir 21 contains water. A temperature control plate 25 is installed below the inside of the water reservoir 21. An air duct 26 that can communicate with the inside of the water reservoir 21 is provided on one side of the inside of the water reservoir 21. An air cylinder 27 that can communicate with the air duct 26 is installed below the water reservoir 21. A piston 28 is sleeved in the cylinder 27, a spring 29 is connected to one side of the cylinder 27, the other end of the spring 29 is connected to the piston 28, four surrounding limit rods 226 are connected to one side of the cylinder 27, the limit rods 226 pass through the piston 28, a desiccant group 220 is sleeved on the other side of the cylinder 27, a mesh cover 221 is hinged in the cylinder 27 for fixing the desiccant group 220, a magnetic block 222 is connected to the front of the mesh cover 221, and a magnetic block 223 223 that can attract the magnetic block 222 is connected to the cylinder 27.

[0021] The above scheme is adopted: under the action of the temperature control plate 25, the temperature of the water body inside the water reservoir 21 can be controlled. During ventilation, due to the operation of the air filter 15, the outside air can be introduced and filtered by the air filter 15 and then enter the ventilation box 14, and then enter the water body in the water reservoir 21 through the corrugated hose 22 and the water outlet 23. When the outside air passes through the water outlet 23, it will be divided by the porous plate 24, reducing the volume of the air bubbles in the water body and increasing the number of bubbles, so that the air can evenly contact the water body for heat exchange. As the bubbles float to the liquid surface and burst, the heated or cooled air will be located above the water reservoir 21, and then enter the air cylinder 27 along the air duct 26, and then the air passing through the water body is dehumidified by the desiccant group 220 and discharged into the culture chamber 12, so as to avoid the increase of humidity inside the culture chamber 12, which is conducive to maintaining the humidity balance in the culture chamber 12, so that during the air intake process, the incoming air can be heated or cooled according to the temperature difference between the inside and the outside.

[0022] like Figure 2 and Figure 3 As shown, the bottom of the air cylinder 27 is connected to an air inlet pipe 210, the bottom end of the air inlet pipe 210 passes through the ventilation plate 17 and extends to the bottom of the culture chamber 12 and is provided with a one-way valve 1 211, and a plurality of exhaust holes 212 that can be connected to the outside are opened around one side of the air cylinder 27, and a one-way valve 2 213 that can close the exhaust hole 212 is provided on one side of the air cylinder 27.

[0023] The above scheme is adopted: when the elastic force of spring 1 29 is reset, the movement of piston 28 can open the one-way valve 1 211 and suck the original air inside the culture chamber 12 into the air cylinder 27 through the air inlet pipe 210; when spring 1 29 is compressed, the movement of piston 28 can open the one-way valve 213 and discharge the air sucked into the air cylinder 27 to the outside through the exhaust hole 212, so that the air inside the culture chamber 12 can be discharged, and at the same time, it can be ensured that the temperature inside the air cylinder 27 will not change significantly.

[0024] like Figure 3 As shown, an electromagnetic push rod 214 is provided at the connection between the gas cylinder 27 and the gas passage 26, and a valve 215 capable of closing the connection between the gas cylinder 27 and the gas passage 26 is connected to the output end of the electromagnetic push rod 214.

[0025] With the above solution, when the spring 29 moves to the maximum position, the electromagnetic push rod 214 operates, driving the valve 215 to move to block the connection between the airway 26 and the air cylinder 27.

[0026] like Figure 3 , Fig.14 and Fig.15 As shown, a porous disk 1 216 located between the piston 28 and the desiccant group 220 is installed in the air cylinder 27, the other end of the limit rod 226 is connected to the porous disk 1 216, and a porous disk 217 is movably installed on the other side of the porous disk 1 216. The circular holes on the porous disk 1 216 and the porous disk 217 are staggered with each other, and an arc-shaped toothed plate 218 located in the inner wall of the air cylinder 27 is connected to the lower part of the outside of the porous disk 217. The bottom of the air cylinder 27 is connected to a gear 219 through a motor drive, and the gear 219 is meshed with the arc-shaped toothed plate 218.

[0027] The above scheme is adopted: the motor drives the gear 219 to rotate, and meshes to drive the arc-shaped tooth plate 218 and the porous disk 217 to rotate on the porous disk 1 216, so that the circular holes on the porous disk 1 216 and the porous disk 2 217 are connected with each other. At this time, under the elastic recovery effect of the spring 1 29, the gas can be discharged to the desiccant group 220 through the circular holes on the porous disk 1 216 and the porous disk 2 217.

[0028] like Fig.12 and Fig.13 As shown, an electromagnetic push rod 224 is installed on the back of the gas cylinder 27, and the output end of the electromagnetic push rod 224 is connected to a sealing cover 225 that can seal the desiccant group 220.

[0029] With the above solution, the operation of electromagnetic push rod 224 drives sealing cover 225 to move and open, thereby releasing the seal on desiccant group 220. Since 255 seals desiccant group 220, desiccant group 220 can be prevented from affecting the humidity in culture chamber 12.

[0030] like Figure 3 , Figure 4 , Figures 6 to 10 As shown, it also includes an adjustment mechanism 3, which is arranged in the wheat cultivation mechanism 1 and the ventilation mechanism 2. The adjustment mechanism 3 includes four fixed sleeves 35, and the four fixed sleeves 35 are respectively connected to the outside of the four limit rods 226. The internal movable sleeve of the fixed sleeve 35 is provided with a top sleeve 37 located outside the limit rod 226. One side of the top sleeve 37 is connected to a spring 2 36, and the other end of the spring 2 36 is connected to the inner wall of the air cylinder 27. Blocks 38 that can be snapped into the top sleeve 37 are slidably installed on both sides of the fixed sleeve 35. A spring 39 is connected to the block 38. The spring 39 The other end of 39 is connected to the inner wall of the fixed sleeve 35, and the internal sliding installations on both sides of the fixed sleeve 35 are inclined plane blocks 310 that can abut against the inclined plane of the block 38, and the other side of the inclined plane block 310 is connected to a movable rod 311 embedded in the inner wall of the gas cylinder 27, and the other end of the movable rod 311 is connected to a connecting plate 312 embedded in the inner wall of the gas cylinder 27, and the outer side of the connecting plate 312 is connected to a hemispherical block 313, and the outer sleeve of the movable rod 311 is provided with a tension spring 314, one end of the tension spring 314 is connected to the inclined plane block 310, and the other end of the tension spring 314 is connected to the inner wall of the fixed sleeve 35.

[0031] Adopting the above scheme: when the toothed disc 315 contracts inwardly, it can drive the connecting plate 312, the movable rod 311 and the inclined block 310 to move. At this time, the tension spring 314 is stretched. Due to the movement of the inclined block 310, the card block 38 can be squeezed and pushed to move to both sides to escape from the inside of the top sleeve 37. At the same time, the spring three 39 is compressed. At this time, the spring two 36 in the compressed state will push the top sleeve 37 to move and abut against the piston 28 due to the recovery effect of the elastic force.

[0032] like Figure 3 , Figure 4 , Figures 6 to 10 As shown, a toothed disc 315 is movably mounted on the outward end of the air cylinder 27, arc grooves 317 are provided at the upper and lower parts inside the toothed disc 315, arc grooves 1 316 are provided on both sides inside the toothed disc 315, and four hemispherical blocks 313 are provided, and the four hemispherical blocks 313 are respectively located in arc grooves 2 317 and arc grooves 1 316.

[0033] By adopting the above scheme, as the lifting plate 31 rises, the bent pipe 33 and the tooth pressure plate 34 can be driven to move upward, and the tooth pressure plate 34 engages to drive the toothed disc 315 to rotate, so that the hemispherical block 313 is disengaged from the interior of the arc groove 1 316 or the arc groove 2 317, and is squeezed inward by the toothed disc 315, thereby releasing the fixation of the top sleeve 37.

[0034] like Figure 2 , Figure 3 and Figure 6As shown, a connecting rod 32 is connected to the top of the water outlet 23, the top end of the connecting rod 32 extends to the outside of the incubator 11 and is connected to a lifting plate 31 that can be driven by an electric cylinder, a curved pipe 33 is connected to one side of the lifting plate 31, and the bottom end of the curved pipe 33 is connected to a tooth pressure plate 34 that can engage with a toothed disc 315, and protective covers 318 located outside the toothed disc 315 and the tooth pressure plate 34 are connected to both sides of the incubator 11.

[0035] The above scheme is adopted: when the difference between the outside temperature and the internal temperature of the culture chamber 12 decreases, the control end drives the lifting plate 31, the connecting rod 32 and the water outlet head 23 to rise through the electric cylinder, and at the same time adjusts the rising height of the water outlet head 23 according to the size of the difference. When the difference decreases and the height of the water outlet head 23 is increased, the rising distance of the bubbles sprayed by the water outlet head 23 in the water body is shortened, and the contact heat exchange time between the air and the water body is shortened, thereby improving the overall ventilation efficiency.

[0036] like Figures 1 to 15 As shown, the following steps: S1: Plant a number of wheat seeds in two culture containers, and then place them on the ventilation plates 17 in two culture chambers 12, respectively, and control the temperature in the two culture chambers 12 by the constant temperature and moisturizing components 16, so that the temperature in the two culture chambers 12 is different; S2: By comparing the outside temperature with the temperature inside the culture chamber 12, it is determined whether the outside temperature is lower or higher than the temperature inside the culture chamber 12. Under the action of the temperature control board 25, the temperature of the water inside the water reservoir 21 can be controlled; S3: During ventilation, due to the operation of the air filter 15, outside air can be introduced and filtered by the air filter 15 before entering the ventilation box 14, and then enters the water body in the water reservoir 21 through the corrugated hose 22 and the water outlet 23. When the outside air passes through the water outlet 23, it will be divided by the porous plates 24, reducing the volume of air bubbles in the water body and increasing the number of bubbles, so that the air can evenly contact the water body for heat exchange; S4: As the bubbles float to the liquid surface and burst, the heated or cooled air will be located above the water reservoir 21, and then enter the air cylinder 27 along the air duct 26. The air passing through the water body is dehumidified by the desiccant group 220 and then discharged into the culture chamber 12.

[0037] The working principle and use process of the present invention: The experimenters planted several wheat seeds into two culture containers respectively, and then placed them on the ventilation plates 17 in the two culture chambers 12 respectively. The temperatures in the two culture chambers 12 were controlled by the constant temperature and moisturizing components 16 respectively, so that the temperatures in the two culture chambers 12 were different, so that the germination test of wheat seeds could be carried out under two different accumulated temperature conditions.

[0038] By comparing the outside temperature with the temperature inside the culture chamber 12, it is determined whether the outside temperature is lower or higher than the temperature inside the culture chamber 12. Under the action of the temperature control plate 25, the temperature of the water inside the water reservoir 21 can be controlled. During ventilation, due to the operation of the air filter 15, the outside air can be introduced and filtered by the air filter 15 and then enter the ventilation box 14, and then enter the water in the water reservoir 21 through the corrugated hose 22 and the water outlet 23. When the outside air passes through the water outlet 23, it will be divided by the porous plate 24, reducing the volume of the air bubbles in the water body and increasing the number of bubbles, so that the air can evenly contact the water body for heat exchange. As the bubbles float to the liquid surface and burst, the heated or cooled air will be located above the water reservoir 21, and then enter the air cylinder 27 along the airway 26, so that the air pressure in the air cylinder 27 increases, and the piston 28 is pushed outward. The spring 29 is compressed and when the spring 29 moves to the maximum position, the electromagnetic push rod 214 is operated to drive the valve 215 to move to block the connection between the airway 26 and the air cylinder 27. Then the motor drives the gear 219 to rotate, and the arc tooth plate 218 and the porous disk 217 are meshed to rotate on the porous disk 1 216, so that the circular holes on the porous disk 1 216 and the porous disk 217 are connected to each other. At the same time, the electromagnetic push rod 224 is operated to drive the sealing cover 225 to move and open, thereby releasing the seal on the desiccant group 220. At this time, under the elastic recovery effect of the spring 29, the gas can be discharged to the desiccant group 220 through the circular holes on the porous disk 1 216 and the porous disk 217, and the air passing through the water body is dehumidified by the desiccant group 220 and then discharged into the culture chamber 12, so as to avoid the increase of humidity inside the culture chamber 12, which is conducive to maintaining the humidity balance in the culture chamber 12.

[0039] If the humidity in the culture chamber 12 is lower than a predetermined value, the culture chamber 12 can be heated by the constant temperature and moisturizing component 16. When the spring 29 is reset, the movement of the piston 28 can open the one-way valve 211 and suck the original air in the culture chamber 12 into the air cylinder 27 through the air inlet pipe 210. When the spring 29 is compressed, the movement of the piston 28 can open the one-way valve 213 and discharge the air sucked in the air cylinder 27 to the outside through the exhaust hole 212, thereby discharging the air in the culture chamber 12 and ensuring that the temperature inside the air cylinder 27 does not change significantly.

[0040] When the air heated by the outside enters the air cylinder 27, the gas will be evenly distributed in the air cylinder 27. At the same time, the design of the circular holes on the porous disk 1 216 and the porous disk 2 217 can make the gas pass through the desiccant group 220 evenly, ensuring that the desiccant group 220 as a whole can be used evenly and reasonably.

[0041] When the desiccant set 220 is to be replaced, the second magnetic block 223 and the first magnetic block 222 can be separated, the net cover 221 can be opened, the desiccant set 220 can be released, and then taken out for replacement.

[0042] By monitoring the external temperature, the difference between the external temperature and the internal temperature of the culture chamber 12 is analyzed. When the difference decreases, the control end drives the lifting plate 31, the connecting rod 32 and the water head 23 to rise through the electric cylinder, and at the same time adjusts the rising height of the water head 23 according to the size of the difference. When the difference decreases and the height of the water head 23 is increased, the rising distance of the bubbles sprayed by the water head 23 in the water body is shortened, and the contact heat exchange time between the air and the water body is shortened, thereby improving the overall ventilation efficiency. Due to the rise of the lifting plate 31, the elbow 33 and the tooth pressure plate 34 can be driven to move upward. When the difference is shortened to a moderate level, the tooth pressure plate 34 engages and drives the toothed disc 315 to rotate, so that the hemispherical blocks 313 on both sides are separated from the arc groove. The interior of the first 316 is squeezed inward by the toothed disc 315, and drives the connecting plate 312, the movable rod 311 and the inclined block 310 to move. At this time, the tension spring 314 is stretched. Due to the movement of the inclined block 310, the card block 38 can be squeezed and pushed to move to both sides to escape from the interior of the top sleeve 37. At the same time, the spring three 39 is compressed. At this time, the spring two 36 in the compressed state will push the top sleeve 37 to move and abut against the piston 28 due to the restoring effect of the elastic force, thereby increasing the reset elastic force of the piston 28, thereby increasing the speed at which the piston 28 pushes the air into the culture chamber 12, and at the same time accelerates the speed at which the air passes through the desiccant group 220, so that the dehumidification intensity of the desiccant group 220 on the air is reduced.

[0043] When the difference is shortened to a smaller value, the tooth pressure plate 34 engages to drive the toothed disc 315 to rotate, so that the hemispherical blocks 313 in the upper and lower directions are disengaged from the interior of the arc groove 317 and are squeezed inward by the toothed disc 315, thereby releasing the fixation of the upper and lower top sleeves 37 and further increasing the resetting force of the piston 28, thereby further reducing the dehumidification intensity of the air, and making the air dehumidification intensity have the function of three-speed adjustment.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] 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. A wheat seed germination vitality testing device for different accumulated temperature conditions, characterized in that: It comprises a wheat cultivation mechanism (1) and a ventilation mechanism (2); The ventilation mechanism (2) is arranged in a wheat cultivation mechanism (1), the wheat cultivation mechanism (1) comprises a cultivation box (11), two cultivation chambers (12) are arranged in the cultivation box (11), an air inlet fan (13) is installed above the cultivation box (11), an air filter element (15) is installed at the top of the air inlet fan (13), the bottom of the air inlet fan (13) is connected to a ventilation box (14) located in the cultivation box (11), a temperature and humidity control constant temperature and moisture retention component (16) is arranged inside the cultivation chamber (12), and a ventilation plate (17) is installed below the inside of the cultivation chamber (12); The ventilation mechanism (2) comprises a water reservoir (21), the water reservoir (21) being installed above the culture chamber (12), the water reservoir (21) being installed with a plurality of corrugated hoses (22) which can be connected to the ventilation box (14), the bottom end of the corrugated hose (22) being connected to a water outlet (23), the water outlet (23) being installed with a porous plate (24), the water reservoir (21) containing water, a temperature control plate (25) being installed below the inside of the water reservoir (21), an air passage (26) which can be connected to the inside of the water reservoir (21) being provided on one side of the inside of the water reservoir (21), an air cylinder (27) which can be connected to the air passage (26) being installed below the water reservoir (21), and the The gas cylinder (27) is sleeved with a piston (28), one side of the gas cylinder (27) is connected to a spring one (29), the other end of the spring one (29) is connected to the piston (28), one side of the gas cylinder (27) is connected to four surrounding limit rods (226), the limit rods (226) pass through the piston (28), the other side of the gas cylinder (27) is sleeved with a desiccant group (220), a mesh cover (221) capable of fixing the desiccant group (220) is hingedly connected to the gas cylinder (27), a magnetic attraction block one (222) is connected to the front of the mesh cover (221), and a magnetic attraction block two (223) capable of attracting the magnetic attraction block one (222) is connected to the gas cylinder (27).

2. The wheat seed germination vitality testing device for different accumulated temperature conditions according to claim 1, characterized in that: The bottom of the gas cylinder (27) is connected to an air inlet pipe (210), the bottom end of which passes through the ventilation plate (17) and extends to the bottom of the culture chamber (12) and is provided with a one-way valve 1 (211), and a plurality of exhaust holes (212) that can be connected to the outside are formed around one side of the gas cylinder (27), and a one-way valve 2 (213) that can close the exhaust holes (212) is provided on one side of the gas cylinder (27).

3. The wheat seed germination vitality testing device for different accumulated temperature conditions according to claim 1, characterized in that: An electromagnetic push rod 1 (214) is provided at the connection point between the gas cylinder (27) and the airway (26), and an output end of the electromagnetic push rod 1 (214) is connected to a valve (215) capable of closing the connection between the gas cylinder (27) and the airway (26).

4. The wheat seed germination vitality testing device for different accumulated temperature conditions according to claim 1, characterized in that: A porous disk 1 (216) located between the piston (28) and the desiccant group (220) is installed in the air cylinder (27); the other end of the limit rod (226) is connected to the porous disk 1 (216); a porous disk 2 (217) is movably installed on the other side of the porous disk 1 (216); the circular holes on the porous disk 1 (216) and the porous disk 2 (217) are offset from each other; an arc-shaped toothed plate (218) located in the inner wall of the air cylinder (27) is connected below the outside of the porous disk 2 (217); a gear (219) is connected to the bottom of the air cylinder (27) through a motor drive; the gear (219) is meshed with the arc-shaped toothed plate (218).

5. The wheat seed germination vitality testing device for different accumulated temperature conditions according to claim 1, characterized in that: A second electromagnetic push rod (224) is installed on the back of the gas cylinder (27), and an output end of the second electromagnetic push rod (224) is connected to a sealing cover (225) capable of sealing the desiccant group (220).

6. The wheat seed germination vitality testing device for different accumulated temperature conditions according to claim 1, characterized in that: The invention also comprises an adjusting mechanism (3), wherein the adjusting mechanism (3) is arranged in the wheat cultivation mechanism (1) and the ventilation mechanism (2), and the adjusting mechanism (3) comprises four fixing sleeves (35), wherein the four fixing sleeves (35) are respectively connected to the outside of four limiting rods (226), and the internal movable sleeve of the fixing sleeve (35) is provided with a top sleeve (37) located outside the limiting rod (226), and one side of the inside of the top sleeve (37) is connected to a second spring (36), and the other end of the second spring (36) is connected to the inner wall of the air cylinder (27), and blocks (38) that can be clamped in the top sleeve (37) are slidably installed on both sides of the fixing sleeve (35), and the blocks (38) are connected to a third spring (39), and the third spring (39) is connected to the third spring (39). The other end of the spring (39) is connected to the inner wall of the fixed sleeve (35); inclined surface blocks (310) capable of abutting against the inclined surface of the clamping block (38) are slidably installed inside both sides of the fixed sleeve (35); the other side of the inclined surface block (310) is connected to a movable rod (311) embedded in the inner wall of the gas cylinder (27); the other end of the movable rod (311) is connected to a connecting plate (312) embedded in the inner wall of the gas cylinder (27); the outer side of the connecting plate (312) is connected to a hemispherical block (313); the outer sleeve of the movable rod (311) is provided with a tension spring (314); one end of the tension spring (314) is connected to the inclined surface block (310); and the other end of the tension spring (314) is connected to the inner wall of the fixed sleeve (35).

7. The wheat seed germination vitality testing device for different accumulated temperature conditions according to claim 6, characterized in that: A toothed disc (315) is movably mounted on the outward end of the air cylinder (27), arc grooves (317) are provided at the upper and lower parts of the toothed disc (315), arc grooves (316) are provided at both sides of the toothed disc (315), and four hemispherical blocks (313) are provided, and the four hemispherical blocks (313) are respectively located in the arc grooves (317) and the arc grooves (316).

8. The device and method for testing the germination vitality of wheat seeds under different accumulated temperature conditions according to claim 7, characterized in that: The top of the water outlet (23) is connected to a connecting rod (32), the top end of the connecting rod (32) extends to the outside of the incubator (11) and is connected to a lifting plate (31) that can be driven by an electric cylinder, one side of the lifting plate (31) is connected to a curved pipe (33), the bottom end of the curved pipe (33) is connected to a toothed pressure plate (34) that can mesh with a toothed disc (315), and both sides of the incubator (11) are connected to protective covers (318) located outside the toothed disc (315) and the toothed pressure plate (34).

9. A method for testing the germination vitality of wheat seeds under different accumulated temperature conditions, using the device for testing the germination vitality of wheat seeds under different accumulated temperature conditions as claimed in claim 1, characterized in that: The steps are as follows: S1: planting a plurality of wheat seeds in two culture containers respectively, and then placing them respectively on ventilation plates (17) in two culture chambers (12), and controlling the temperatures in the two culture chambers (12) respectively by means of a constant temperature and moisture retaining component (16) so that the temperatures in the two culture chambers (12) are different; S2: By comparing the outside temperature with the temperature inside the culture chamber (12), it is determined whether the outside temperature is lower or higher than the temperature inside the culture chamber (12). Under the action of the temperature control plate (25), the temperature of the water inside the water reservoir (21) can be controlled; S3: During ventilation, due to the operation of the air filter (15), outside air can be introduced and filtered by the air filter (15) before entering the ventilation box (14), and then enters the water body in the water reservoir (21) through the corrugated hose (22) and the water outlet (23). When the outside air passes through the water outlet (23), it is divided by the pores on the porous plate (24), thereby reducing the volume of air bubbles in the water body and increasing the number of bubbles, so that the air can evenly contact the water body for heat exchange; S4: As the bubbles rise to the liquid surface and burst, the heated or cooled air will be located above the water reservoir (21), and then enter the air cylinder (27) along the air duct (26). The air passing through the water body is dehumidified by the desiccant group (220) and then discharged into the culture chamber (12).

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