A corn breeding pollen collection device

Abstract

The utility model relates to the technical field of pollen collection, concretely is a kind of pollen collection device for corn breeding, including pneumatic conveying mechanism and pollen collection mechanism;The pollen collection mechanism is arranged in the output end of pneumatic conveying mechanism, and the pneumatic conveying mechanism is used to extract air in pollen collection mechanism or inject air into pollen collection mechanism.When using, pollen collection container is provided in the bottom of gas path connecting piece, and first filter screen and second filter screen are respectively arranged in gas path connecting piece and pollen collection container, while gas path shunt piece is communicated with air pump connecting pipe by being arranged in gas path connecting piece, and the extension air pipe at the bottom of gas path shunt piece is extended to the below of first filter screen, during collecting pollen, when first filter screen is blocked by pollen, gas path shunt piece switches airflow passage under the action of air pressure to avoid blockage, and pollen is filtered and isolated by second filter screen.

Description

Technical Field

[0001] This utility model relates to the field of pollen collection technology, and in particular to a pollen collection device for maize breeding. Background Technology

[0002] Corn is an annual herbaceous plant of the Poaceae family, also known as maize, corncob, maize, pearl rice, etc. It originated in Central and South America and is an important food crop in the world. It is widely distributed in the United States, China, Brazil and other countries. Corn breeding is to improve the yield of good quality corn seeds.

[0003] After flowering, corn plants need to be pollinated to produce fruit. Natural pollination is very inefficient and has a low success rate. Therefore, when breeding corn, it is necessary to collect corn pollen artificially and then pollinate it manually to improve the quality of the breeding varieties.

[0004] Existing pollen collection devices mainly consist of an air pump and a pollen storage component. The air pump draws pollen into the storage component for storage. To prevent pollen from entering the pump body, a filter screen is usually installed to isolate the pollen. However, installing a filter screen presents the following problems: if the mesh size of the filter screen is too large, it will not be able to effectively isolate the pollen; if the mesh size of the filter screen is too small, pollen will adhere to the filter screen in large quantities due to suction during the operation of the air pump, clogging the filter screen and causing the suction force for collecting pollen to gradually decrease until it disappears, thus affecting the collection of pollen.

[0005] Therefore, this application proposes a pollen collection device for maize breeding, which reduces the possibility of clogging while collecting pollen. Utility Model Content

[0006] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a pollen collection device for maize breeding, which solves the problem of easy clogging mentioned in the prior art.

[0007] To achieve the above and other related objectives, this utility model provides a pollen collection device for maize breeding, including a pneumatic conveying mechanism and a pollen collection mechanism; The pollen collection mechanism is located at the output end of the pneumatic conveying mechanism, which is used to extract air from the pollen collection mechanism or inject air into the pollen collection mechanism. The pollen collection mechanism includes an air passage connector. The outer surface of the air passage connector is provided with an air pump connecting pipe and a pollen collection pipe that communicate with the interior of the air passage connector. The bottom of the air passage connector is detachably provided with a pollen collection container that communicates with the interior of the air passage connector. The lower part of the pollen collection container is provided with a first filter screen that divides the pollen collection container into upper and lower chambers. The air path connector is provided with an air path branch component with an air path switching function. The air path branch component is connected to the air pump connecting pipe. The bottom of the air path branch component is provided with an extension air pipe. The extension air pipe passes through the chamber above the first filter screen to the chamber below the first filter screen. The outer surface of the air circuit splitter is provided with a second filter screen, which is located above the air pump connecting pipe, dividing the upper part of the air circuit connector into upper and lower chambers.

[0008] Preferably, the outer surface of the pollen collecting tube is provided with external threads, and a detachable extension hose is inserted into the axis of the pollen collecting tube.

[0009] Preferably, the air circuit branching component includes a buffer air tube, a duct is provided on the side of the buffer air tube, the duct is connected to the air pump connecting pipe, and the bottom of the buffer air tube is connected to the extension air tube. The inner bottom of the buffer air tube is equipped with a built-in filter element, and a channel switching component is provided above the built-in filter element. The channel switching component can slide up and down under air pressure.

[0010] Preferably, the interior of the buffer tube is provided with a first elastic element and a second elastic element, and the first elastic element and the second elastic element respectively apply upward or downward elastic pressure to the channel switching element; The first elastic element and the second elastic element have the same elasticity.

[0011] Preferably, the channel switching component includes an air guide rod that extends through the top of the buffer air tube into the interior of the air path connector. The lower end of the air guide rod is provided with an isolation plate, and the upper end of the air guide rod is provided with a limiting head. The upper end of the first elastic element abuts against the lower end of the isolation sheet, and the lower end of the second elastic element abuts against the upper end of the isolation sheet. The first elastic element and the second elastic element cooperate to make the isolation sheet naturally positioned above the air inlet. The bottom of the outer surface of the air guide rod is provided with several air grooves, and the axis of the limiting head is provided with an air guide hole that communicates with the air grooves.

[0012] Preferably, the pneumatic conveying mechanism includes a miniature air pump, the air pump connecting pipe is connected to the gas output end of the miniature air pump, the outer surface of the miniature air pump is provided with a hand handle, the hand handle is provided with an air pump switch, and the lower end of the hand handle is provided with a power battery.

[0013] Preferably, the miniature air pump can be switched to either a pumping or inflation mode via an air pump switch.

[0014] Preferably, the air pump connecting pipe is detachably connected to the gas output end of the micro air pump.

[0015] As described above, the pollen collection device for maize breeding of this utility model has the following beneficial effects: 1. This utility model provides a pollen collection container at the bottom of the air path connector, and sets a first filter and a second filter in the air path connector and the pollen collection container respectively. At the same time, an air path branch is set in the air path connector and connected to the air pump connecting pipe. The extension air pipe at the bottom of the air path branch extends to the bottom of the first filter. During the pollen collection process, when the first filter is blocked by pollen, the air path branch switches the airflow channel under the action of air pressure to avoid blockage, and filters and isolates the pollen through the second filter.

[0016] At the same time, gas is injected into the air circuit connector through the pneumatic conveying mechanism. The gas enters the pollen collection container through the extended air tube and is sprayed out from the pollen collection tube for pollination. At this time, the gas rises from below the first filter screen to open the blocked holes of the first filter screen, achieving the dual effect of collecting pollen and pollination, as well as realizing the purpose of self-cleaning by backflow airflow.

[0017] 2. This utility model sets up a miniature air pump, a hand handle on the miniature air pump, and an air pump switch and a power battery on the hand handle to control the start, stop and power supply of the miniature air pump, so as to realize the miniaturization and wireless nature of the device, thereby achieving the purpose of convenient use.

[0018] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. Attached Figure Description

[0019] Figure 1 The diagram shown is a structural schematic of this utility model.

[0020] Figure 2 The diagram shown is a schematic representation of the pollen collection mechanism of this invention.

[0021] Figure 3 The diagram shown is a cross-sectional view of the pollen collection mechanism of this utility model.

[0022] Figure 4 The diagram shown is a cross-sectional view of the gas circuit splitter of this utility model.

[0023] Figure 5 The diagram shown is a structural schematic of the channel switching component of this utility model.

[0024] Figure 6 The diagram shown is a cross-sectional view of the channel switching component of this utility model.

[0025] Component designation explanation: 1. Pneumatic conveying mechanism; 11. Miniature air pump; 12. Hand handle; 13. Air pump switch; 14. Power battery; 2. Pollen collection mechanism; 21. Air circuit connector; 22. Air pump connecting pipe; 221. Gas circuit branch component; 2211. Buffer gas tube; 2212. Air intake tube; 2213. Built-in filter element; 2214. Channel switching component; 22141. Air guide rod; 22142. Isolation plate; 22143. Limiting head; 22144. Vent groove; 22145. Air guide hole; 2215. First elastic element; 2216. Second elastic element; 222. Extended air tube; 23. Pollen collection tube; 24. Extension hose; 25. Pollen collection container; 251. First filter screen; 252. Second filter screen. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0027] Please see Figures 1 to 6 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0028] like Figures 1-3 As shown, this utility model provides a pollen collection device for maize breeding, including a pneumatic conveying mechanism 1 and a pollen collection mechanism 2. The pollen collection mechanism 2 is located at the output end of the pneumatic conveying mechanism 1. The pneumatic conveying mechanism 1 is used to extract air from the pollen collection mechanism 2 or inject air into the pollen collection mechanism 2. When air is extracted from the pollen collection mechanism 2, the pressure in the pollen collection mechanism 2 will decrease, thereby drawing in external air and achieving the purpose of collecting pollen. Injecting gas into the pollen collection mechanism 2 can make the pollen collection mechanism 2 be in a high-pressure state, thereby spraying out the pollen stored in the pollen collection mechanism 2 through the high-pressure airflow for pollination.

[0029] Specifically, the pollen collection mechanism 2 includes an air passage connector 21. The outer surface of the air passage connector 21 is respectively provided with an air pump connecting pipe 22 and a pollen collection pipe 23, which are connected to the interior of the air passage connector 21. The air pump connecting pipe 22 is used to connect to the air passage of the pneumatic conveying mechanism 1, while the pollen collection pipe 23 is used to output gas after inhalation. The bottom of the air passage connector 21 is provided with a pollen collection container 25 that is detachably provided by threads. The pollen collection container 25 is connected to the interior of the air passage connector 21 and is used to collect pollen after collection. The pollen collection container 25 has a first filter screen 251 at the lower part of its interior, which divides the pollen collection container 25 into upper and lower chambers. The first filter screen 251 isolates the pollen, so that the pollen is located in the upper chamber of the pollen collection container 25. The air path connector 21 has an air path branch component 221 with an air path switching function inside. The air path branch component 221 is connected to the air pump connecting pipe 22. The bottom of the air path branch component 221 has an extension air pipe 222, which runs from the upper chamber of the first filter screen 251 to the lower chamber of the first filter screen 251. The outer surface of the air circuit splitter 221 is provided with a second filter screen 252, which is located above the air pump connecting pipe 22 and divides the upper part of the air circuit connector 21 into upper and lower chambers. During the air extraction process, when the first filter 251 is not blocked, the air pressure in the upper and lower chambers of the pollen collection container 25 is balanced. At this time, the gas normally passes through the first filter 251 into the interior of the air path distributor 221 and is discharged from the pneumatic conveying mechanism 1. When the first filter 251 is blocked and the pneumatic conveying mechanism 1 cannot extract the gas normally, the air pressure in the lower chamber of the pollen collection container 25 will be significantly lower than the air pressure in the upper chamber of the pollen collection container 25 because the gas is extracted by the pneumatic conveying mechanism 1. At this time, the air path distributor 221 located in the upper chamber of the pollen collection container 25 will be squeezed by the gas pressure, thereby driving the air path distributor 221 to switch to the upper airflow channel so that the pneumatic conveying mechanism 1 can still collect pollen normally. At this time, the second filter 252 is used to isolate the upper airflow channel. Because the extracted pollen is located below the second filter 252, the pollen will not accumulate in large quantities at the bottom of the second filter 252 under the action of gravity, thus making the second filter 252 difficult to clog.

[0030] like Figure 1 and Figure 3As shown, in some embodiments, the outer surface of the pollen collecting tube 23 of this utility model is provided with external threads. During pollination, a nozzle can be connected through the external threads on the outer surface of the pollen collecting tube 23 to spray pollen onto the flower stamen for pollination. A detachable extension hose 24 is inserted into the axis of the pollen collecting tube 23. When collecting pollen or pollinating, the extension hose 24 can be easily introduced into the interior of the flower, improving the convenience of collecting pollen or pollinating. According to the actual pollination needs, the extension hose 24 can be disassembled and the nozzle can be installed.

[0031] like Figure 4 As shown, in some embodiments, the gas path branch component 221 of this utility model includes a buffer gas pipe 2211, and an air intake pipe 2212 is provided on the side of the buffer gas pipe 2211. The air intake pipe 2212 is connected to the air pump connecting pipe 22, and the bottom of the buffer gas pipe 2211 is connected to the extension gas pipe 222. Under normal circumstances, when collecting pollen, gas enters the interior of the buffer gas pipe 2211 from the extension gas pipe 222 and then enters the interior of the pneumatic conveying mechanism 1 from the air intake pipe 2212, thereby carrying the pollen into the interior of the pollen collection container 25 for collection by negative pressure. During pollination, gas enters the interior of the buffer gas pipe 2211 from the air intake pipe 2212 and then enters the interior of the pollen collection container 25 from the extension gas pipe 222, driving the pollen to be ejected by high-pressure gas. The inner bottom of the buffer air tube 2211 is provided with a built-in filter element 2213 for further isolation of pollen; above the built-in filter element 2213 is a channel switching component 2214, which can slide up and down under air pressure. When gas cannot enter in the direction of the extended air tube 222, the air pressure in the direction of the extended air tube 222 will gradually decrease as the pneumatic conveying mechanism 1 continuously draws air. At this time, the gas pressure in the upper cavity of the pollen collection container 25 will drive the channel switching component 2214 to move in the direction of the extended air tube 222 to change the airflow direction of the buffer air tube 2211.

[0032] like Figure 4 As shown, in some embodiments, the buffer air tube 2211 of this utility model is provided with a first elastic element 2215 and a second elastic element 2216 inside. The first elastic element 2215 and the second elastic element 2216 apply upward or downward elastic pressure to the channel switching element 2214, respectively. The elasticity of the first elastic element 2215 and the second elastic element 2216 is the same. When the internal pressure of the upper and lower chambers of the pollen collection container 25 is balanced, the first elastic element 2215 and the second elastic element 2216 keep the channel switching element 2214 stationary due to the balance of elastic force. When the external air pressure applies pressure to the channel switching element 2214, the channel switching element 2214 will move downward to drive the first elastic element 2215 to compress and change the gas flow direction. When the pressure of the upper and lower chambers of the pollen collection container 25 is balanced again, the first elastic element 2215 causes the channel switching element 2214 to return to its initial state under elastic pressure.

[0033] like Figure 4 and Figure 5 As shown, in some embodiments, the channel switching component 2214 of this utility model includes a hollow air guide rod 22141, which extends through the top of the buffer air tube 2211 to the interior of the air passage connector 21; the lower end of the air guide rod 22141 is provided with an isolation plate 22142, the diameter of which is equal to the inner diameter of the buffer air tube 2211, and the two are tightly fitted together; the upper end of the air guide rod 22141 is provided with a limiting head 22143 to prevent the air guide rod 22141 from detaching from the top of the buffer air tube 2211. The upper end of the first elastic member 2215 abuts against the lower end of the isolation plate 22142, and the lower end of the second elastic member 2216 abuts against the upper end of the isolation plate 22142. The first elastic member 2215 and the second elastic member 2216 cooperate to make the isolation plate 22142 naturally positioned above the opening of the air intake tube 2212, thereby dividing the interior of the buffer air tube 2211 into upper and lower spaces, and maintaining its position through the support of the first elastic member 2215 and the second elastic member 2216. The bottom of the outer surface of the air guide rod 22141 is provided with several air grooves 22144, and the axis of the limiting head 22143 is provided with an air guide hole 22145 that communicates with the air grooves 22144. When the external air pressure is greater than the internal air pressure of the buffer air tube 2211, the channel switching component 2214 will be driven by the external air pressure to compress the isolation plate 22142 and the first elastic member 2215, so that the isolation plate 22142 is below the opening of the air intake tube 2212; at this time, the air intake tube 2212 is connected to the air guide hole 22145 and the interior of the pollen collection container 25 through the air groove 22144, while the extension air tube 222 is closed, thus realizing the purpose of automatically switching the airflow channel according to the air pressure.

[0034] like Figure 1 As shown, in some embodiments, the pneumatic conveying mechanism 1 of this utility model includes a miniature air pump 11, and an air pump connecting pipe 22 is connected to the gas output end of the miniature air pump 11, so that the gas state inside the pollen collection mechanism 2 is in different states depending on whether the miniature air pump 11 is pumping or filling. The outer surface of the miniature air pump 11 is provided with a hand handle 12 for easy hand holding, and the hand handle 12 is provided with an air pump switch 13. The lower end of the hand handle 12 is provided with a power battery 14. The air pump switch 13 is connected to the miniature air pump 11 and the power battery 14 respectively, so that the start and stop of the miniature air pump 11 can be controlled by the air pump switch 13. The specific control method and circuit connection can be referred to the handheld electric drill.

[0035] It is worth mentioning that in some embodiments, the miniature air pump 11 of this utility model can be switched to suction or inflation mode by the air pump switch 13. When the miniature air pump 11 is suctioning, pollen is collected at the pollen collection tube 23 by taking medicine. When the miniature air pump 11 is inflation, the inside of the pollen collection container 25 will be under high pressure, and the pollen will be sprayed out from the pollen collection tube 23 by the high pressure gas to achieve pollination.

[0036] It should be noted that in some embodiments, the air pump connecting pipe 22 of this utility model is connected to the gas output end of the micro air pump 11 in a detachable manner to facilitate the maintenance and upkeep of the pollen collection mechanism 2. In summary, the pollen collection device for maize breeding of this utility model has a pollen collection container 25 at the bottom of the air path connector 21, and a first filter screen 251 and a second filter screen 252 are respectively set in the air path connector 21 and the pollen collection container 25. At the same time, an air path branching component 221 is set in the air path connector 21 and connected to the air pump connecting pipe 22. The extension air pipe 222 at the bottom of the air path branching component 221 extends to the bottom of the first filter screen 251. During the pollen collection process, when the first filter screen 251 is blocked by pollen, the air path branching component 221 switches the airflow channel under the action of air pressure to avoid blockage, and filters and isolates the pollen through the second filter screen 252.

[0037] At the same time, gas is injected into the air connection 21 through the pneumatic conveying mechanism 1. The gas will enter the pollen collection container 25 through the extended air pipe 222 and be sprayed out from the pollen collection tube 23 for pollination. At this time, the air rises from below the first filter screen 251 to open the blocked holes of the first filter screen 251, achieving the dual effect of collecting pollen and pollination, as well as realizing the purpose of self-cleaning by backflow airflow.

[0038] This utility model sets up a miniature air pump 11, and a hand handle 12 on the miniature air pump 11. The hand handle 12 is equipped with an air pump switch 13 and a power battery 14 to control the start, stop and power supply of the miniature air pump 11, so as to realize the miniaturization and wireless nature of the device, thereby achieving the purpose of convenient use.

[0039] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A corn breeding pollen collection device, characterized by, It includes a pneumatic conveying mechanism (1) and a pollen collection mechanism (2); The pollen collection mechanism (2) is located at the output end of the pneumatic conveying mechanism (1), and the pneumatic conveying mechanism (1) is used to extract air from the pollen collection mechanism (2) or inject air into the pollen collection mechanism (2); The pollen collection mechanism (2) includes an air path connector (21). The outer surface of the air path connector (21) is provided with an air pump connecting pipe (22) and a pollen collection pipe (23) that communicate with the interior of the air path connector (21). The bottom of the air path connector (21) is provided with a detachable pollen collection container (25) that communicates with the interior of the air path connector (21). The pollen collection container (25) is provided with a first filter screen (251) at the lower part of the interior, which divides the pollen collection container (25) into upper and lower chambers. The air path connector (21) is provided with an air path branch component (221) with an air path switching function. The air path branch component (221) is connected to the air pump connecting pipe (22). The bottom of the air path branch component (221) is provided with an extension air pipe (222). The extension air pipe (222) passes through the upper chamber of the first filter screen (251) to the lower chamber of the first filter screen (251). The outer surface of the air circuit splitter (221) is provided with a second filter screen (252), which is located above the air pump connecting pipe (22) and divides the upper part of the air circuit connector (21) into two chambers.

2. The corn breeding pollen collection device of claim 1, wherein: The pollen collection tube (23) has an external thread on its outer surface, and a detachable extension tube (24) is inserted into the axis of the pollen collection tube (23).

3. The pollen collection device for maize breeding according to claim 1, characterized in that: The gas circuit branch component (221) includes a buffer gas tube (2211), and a gas inlet tube (2212) is provided on the side of the buffer gas tube (2211). The gas inlet tube (2212) is connected to the gas pump connecting pipe (22), and the bottom of the buffer gas tube (2211) is connected to the extension gas tube (222). The inner bottom of the buffer air tube (2211) is provided with a built-in filter element (2213), and a channel switching component (2214) is provided above the built-in filter element (2213). The channel switching component (2214) can slide up and down under air pressure.

4. The corn breeding pollen collection device of claim 3, wherein: The buffer air tube (2211) is provided with a first elastic element (2215) and a second elastic element (2216) inside, and the first elastic element (2215) and the second elastic element (2216) respectively apply upward or downward elastic pressure to the channel switching element (2214); The first elastic element (2215) and the second elastic element (2216) have the same elasticity.

5. The corn breeding pollen collection device of claim 4, wherein: The channel switching component (2214) includes an air guide rod (22141), which extends through the top of the buffer air tube (2211) to the interior of the air circuit connector (21). The lower end of the air guide rod (22141) is provided with an isolation plate (22142), and the upper end of the air guide rod (22141) is provided with a limiting head (22143). The upper end of the first elastic element (2215) abuts against the lower end of the isolation plate (22142), and the lower end of the second elastic element (2216) abuts against the upper end of the isolation plate (22142). The first elastic element (2215) and the second elastic element (2216) cooperate to make the isolation plate (22142) naturally located above the opening of the air inlet tube (2212). The bottom of the outer surface of the air guide rod (22141) is provided with several air grooves (22144), and the axis of the limiting head (22143) is provided with an air guide hole (22145) that communicates with the air grooves (22144).

6. The pollen collection device for maize breeding according to any one of claims 1-5, characterized in that: The pneumatic conveying mechanism (1) includes a micro air pump (11), the air pump connecting pipe (22) is connected to the gas output end of the micro air pump (11), the outer surface of the micro air pump (11) is provided with a hand handle (12), the hand handle (12) is provided with an air pump switch (13), and the lower end of the hand handle (12) is provided with a power battery (14).

7. The corn breeding pollen collection device of claim 6, wherein: The micro air pump (11) can be switched to either pumping or inflation mode via the air pump switch (13).

8. The corn breeding pollen collection device of claim 7, wherein: The air pump connecting pipe (22) is connected to the gas output end of the micro air pump (11) in a detachable manner.

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