Handheld rice single-plant threshing device and use method thereof
By designing a handheld single-plant rice threshing equipment and adopting a double-drum structure controlled by a contact switch, the problem of low safety of existing equipment is solved, and efficient and safe single-plant rice threshing is achieved, which is suitable for field and indoor operations.
Patent Information
- Application Number
- CN202311008439.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-11
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2043-08-11
AI Technical Summary
The existing single-plant rice threshing equipment requires manual operation by inserting the rice ears into the equipment, which can easily cause hand injuries to the operator and has low safety. At the same time, the feed port design makes it easy for rice grains to be thrown out, affecting efficiency.
A handheld single-plant rice threshing device is designed, which is controlled by two threshing drums and a contact switch. Rice ears enter through specific inlets and outlets. The threshing drums rotate in opposite directions, and the rice grains fall into the threshing bin, and the ear stalks are pulled out from the outlet. A rice grain outlet and a baffle are provided to prevent cross contamination.
It improves operational safety, reduces labor costs, and improves work efficiency. It is suitable for harvesting and threshing in the field, and the equipment is small and portable.
Smart Images
Figure CN117063719B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of rice threshing equipment, and in particular to a handheld rice single-plant threshing device and a use method thereof. Background Art
[0002] In rice variety selection and genetic research, in order to ensure the purity of seeds for subsequent experiments, it is often necessary to harvest and thresh individual rice plants. The individual plant harvesting and threshing in conventional scientific research and breeding experiments is carried out in the following order: field selection - harvesting - leaf removal - hanging or putting into mesh bags - airing - manual threshing. Among them, the leaf removal step greatly prolongs the time of field labor, and the manual threshing step is also labor-intensive and time-consuming. During the drying process of the hanging materials, some materials with strong grain shedding properties are easy to fall off, resulting in a reduction in the number of individual seeds finally obtained, affecting the size of the offspring population. This is in response to the need for individual rice threshing in scientific research and breeding work.
[0003] In order to solve the low efficiency of the above-mentioned threshing method, the existing patent CN108848953A discloses a portable sampling device capable of on-site threshing, which includes a housing, a threshing drum, a screen, a storage bag, and a drive member; the threshing drum is arranged inside the housing and is coaxial with the housing; the drive member is arranged on the housing and connected to the threshing drum; the drive member drives the threshing drum to rotate around the axial direction of the threshing drum; the housing is provided with a feed port and a discharge port; the feed port is connected to the discharge port through the inner cavity of the housing; the storage bag is arranged at the bottom of the discharge port; a screen is arranged between the housing and the storage bag; and the threshing drum is provided with threshing teeth. Although the above patent can be used as a portable device, its feed port is the same length as the threshing drum, and it is an open structure. In addition, its threshing method is to manually insert the rice ears into the device through the feed port, which is easy to cause hand injuries to the operator and has low safety. In addition, its feed port is too large, which easily causes rice grains to be thrown out of the feed port. Summary of the Invention
[0004] In response to the technical problems existing in the prior art, the purpose of the present invention is to provide a handheld single-plant rice threshing device and a method of using the same, so as to solve the problem that the threshing method of the existing threshing equipment is to manually insert the rice ears into the equipment from the feed port, which is easy to cause injury to the operator's hands and has low safety.
[0005] In order to achieve the above object, the present invention adopts the following technical solutions:
[0006] A handheld rice single-plant threshing device comprises a left half shell, a right half shell, a threshing drum, a motor, a battery and a first switch. The number of threshing drums and motors is two, the two motors are fixedly installed in the left half shell and the right half shell respectively, the two threshing drums are fixedly connected to the rotating shafts of the two motors respectively, and the two threshing drums rotate relative to the left half shell and the right half shell respectively; the battery is installed in the left half shell or the right half shell, the first switch is arranged on the left half shell or the right half shell, the battery is electrically connected to the first switch, the left half shell is provided with a positive pole of the contact switch, and the right half shell is provided with a negative pole of the contact switch. The positive and negative poles of one motor are electrically connected to the positive pole of the contact switch and the battery respectively, and the positive and negative poles of the other motor are electrically connected to the negative pole of the contact switch and the first switch respectively; a first opening is provided on one side of the left half shell and the right half shell, and a second opening is provided on the other side of the left half shell and the right half shell. When the left half shell and the right half shell are in a fitted state, the positive pole of the contact switch is electrically connected to the negative pole of the contact switch; the two first openings form a rice ear entrance, and the two second openings form a rice stalk exit. The rice ear entrance corresponds to the position of the rice stalk exit, and the area leading from the rice ear entrance to the rice stalk exit is located between the two threshing drums.
[0007] As a preferred embodiment, both the left half shell and the right half shell are provided with handles.
[0008] As a preference, the left half shell or the right half shell is provided with a rice grain outlet, and the rice grain outlet is provided with an outlet baffle.
[0009] As a preferred embodiment, the cross-sections of the left half shell and the right half shell are both semicircular. When the left half shell and the right half shell are in a fitted state, the left half shell and the right half shell form a cylindrical structure with a hollow interior.
[0010] As a preference, the extension direction of the threshing drum located in the left half shell is consistent with the extension direction of the left half shell, and the extension direction of the threshing drum located in the right half shell is consistent with the extension direction of the right half shell.
[0011] As a preferred embodiment, a first partition is provided in the left half shell, a first through hole is provided on the first partition, the motor located in the left half shell is the first motor, the first motor is installed at one end of the inner side of the left half shell, and the rotating shaft of the first motor passes through the first through hole and is fixedly connected to the threshing drum located in the left half shell.
[0012] As a preferred embodiment, a second partition is provided in the right half shell, a second through hole is provided on the second partition, the motor located in the right half shell is the second motor, the second motor is installed at one end of the inner side of the right half shell, the rotating shaft of the second motor passes through the second through hole and is fixedly connected to the threshing drum located in the right half shell, the first partition and the second partition are horizontally fitted to divide the interior of the cylindrical structure into a threshing bin and a motor bin, the rice ear entrance, rice stalk outlet and two threshing drums are all located in the threshing bin, and the first motor and the second motor are both located in the motor bin.
[0013] As a preferred embodiment, a third partition is provided in the left half shell, and a fourth partition is provided in the right half shell. The third partition and the fourth partition are horizontally fitted together to divide the battery compartment for installing the battery from the motor compartment.
[0014] As a preference, the outer surface of the handle is covered with a rubber sleeve.
[0015] A method for using a handheld single-plant rice threshing device is provided. The handheld single-plant rice threshing device is used, and the method comprises the following steps: turning on a first switch, controlling the left and right half shells to open by a handle, so that the stem of the rice ear passes through the rice ear entrance and the ear stalk exit; controlling the left and right half shells to close by a handle, and energizing the positive pole and the negative pole of the contact switch; two motors respectively drive two threshing drums to rotate in opposite directions, and the handheld single-plant rice threshing device is moved upward from bottom to top along the rice ear, so that rice grains on the rice ear are knocked off by the threshing drums and fall into a threshing bin, and the ear stalk is drawn out from the ear stalk exit as the handheld single-plant rice threshing device moves, and the outlet baffle of the rice grain exit is opened to collect the rice grains.
[0016] In general, the present invention has the following advantages:
[0017] 1. The handheld single-plant rice threshing device of the present invention is provided with two power switches, wherein the positive pole of the contact switch and the negative pole of the contact switch can be connected only when the left half shell and the right half shell are closed, so as to ensure that the threshing drum does not operate when the left half shell and the right half shell are opened, thereby ensuring the safety of the operator.
[0018] 2. The threshing chamber of the handheld single-plant rice threshing device of the present invention is designed to be completely open and connected to the rice grain outlet, which makes it easy to clean the remaining rice grains and prevent cross contamination.
[0019] 3. The handheld single-plant rice threshing device of the present invention is not only suitable for threshing rice after harvest, but also suitable for threshing rice while harvesting in the field, eliminating the steps of harvesting and removing leaves, improving work efficiency and reducing labor costs.
[0020] 4. The handheld single-plant rice threshing device of the present invention is small in size, does not require an external power supply, and is easy to carry and use.
[0021] 5. The handheld single-plant rice threshing device of the present invention can beat the entire rice ear from bottom to top, so that the threshing is more complete.
[0022] 6. The handheld rice single-plant threshing device of the present invention can realize single-plant interval threshing and small-group continuous threshing through different operating methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0024] Figure 2This is a schematic diagram of the overall structure of the present invention from another perspective;
[0025] Figure 3 It is a perspective schematic diagram of the internal structure of the present invention;
[0026] Figure 4 It is a schematic diagram of the internal structure of the present invention;
[0027] Figure 5 It is a schematic diagram of the threshing working principle of the present invention;
[0028] Figure 6 It is a circuit diagram of the present invention.
[0029] In the figure: 101, left half shell; 102, right half shell; 103, rice ear entrance; 104, exit baffle; 105, rice stalk exit; 106, threshing chamber; 107, motor chamber; 201, left handle; 202, right handle; 3, first switch; 4, second switch; 401, positive pole of contact switch; 402, negative pole of contact switch; 501, first threshing drum; 502, second threshing drum; 601, first motor; 602, second motor; 7, battery. DETAILED DESCRIPTION
[0030] The present invention will be further described in detail below with reference to specific implementation methods.
[0031] like Figure 1-6As shown, the present embodiment provides a handheld rice single-plant threshing device, including a left half shell 101, a right half shell 102, a threshing drum, a motor, a battery 7, a second switch 4, and a first switch 3. The number of threshing drums and motors is two, and the two motors are fixedly installed in the left half shell and the right half shell respectively. The two threshing drums are fixedly connected to the rotating shafts of the two motors respectively, and the two threshing drums rotate relative to the left half shell and the right half shell respectively; the battery is installed in the left half shell or the right half shell, the first switch is arranged on the left half shell or the right half shell, the battery is electrically connected to the first switch, and the second switch is a contact switch, which is respectively arranged on the left half shell and the right half shell, wherein the left half shell A contact switch positive electrode 401 is provided, and a contact switch negative electrode 402 is provided on the right half shell. The positive and negative electrodes of one motor are electrically connected to the contact switch positive electrode and the battery respectively, and the positive and negative electrodes of the other motor are electrically connected to the contact switch negative electrode and the first switch respectively. A first opening is provided on one side of the left half shell and the right half shell, and a second opening is provided on the other side of the left half shell and the right half shell. When the left half shell and the right half shell are in a fitted state, the contact switch positive electrode is electrically connected to the contact switch negative electrode. The two first openings enclose a rice ear entrance 103, and the two second openings enclose a stalk exit 105. The rice ear entrance corresponds to the stalk exit position, and the area from the rice ear entrance to the stalk exit is located between the two threshing drums. In this embodiment, the cross-sections of the left half shell 101 and the right half shell 102 can be semicircular or rectangular, so that after the left half shell 101 and the right half shell 102 are fitted together, a cylindrical or rectangular structure is formed, which is convenient for the installation of other components inside. The left half shell 101 and the right half shell 102 can be made of aluminum to reduce the overall weight. The threshing drum can be the threshing drum used in the existing patent in the background technology, the motor is an existing stepping motor, and the battery is a lithium battery. The first switch is an existing commonly used push button switch, and the contact switch is an existing DC contactor. The rice ear entrance of this embodiment is set to be slightly larger than a rice ear, similar to opening a small window. The length of the rice ear entrance is shorter than the length of the threshing drum to prevent the rice grains from being thrown out of the rice ear entrance when the rice ear is inserted into the interior for threshing. The ear stalk outlet is set to be slightly larger than the ear stalk to reduce the rice grains from falling from the ear stalk outlet. With the rice ear entrance as the center, the left half shell and the right half shell are separated to the left and right, starting from the neck of the rice ear and moving towards the rice ear. During this period, the two threshing drums rotate in opposite directions, knocking the rice grains off the rice ear from the bottom to the top, and fully threshing; it can be used in conjunction with a mesh bag to collect rice grains while threshing, which is highly safe, improves work efficiency, and reduces labor costs.
[0032] In some embodiments, both the left and right half shells are provided with handles. By providing the handles, it is convenient to carry and also convenient to control the opening and closing of the left and right half shells, wherein the handle located on the left half shell is the left handle 201 and the handle located on the right half shell is the right handle 202.
[0033] In some embodiments, the left or right half shell is provided with a rice grain outlet, which is equipped with an outlet baffle 104. The provision of the rice grain outlet facilitates the removal of rice grains that have fallen into the left or right half shell, and also facilitates the cleaning of residual rice grains, preventing cross-contamination. The rice grain outlet is provided on the side wall of the threshing chamber, connecting the threshing chamber to the outside world. The outlet baffle is closed during threshing, and opened after threshing to remove the rice grains. The outlet baffle can be connected to the rice grain outlet using a hinge or snap fastener.
[0034] In some embodiments, the left and right half shells each have a semicircular cross-section. When the left and right half shells are in contact with each other, they form a cylindrical structure with a hollow interior. By configuring the left and right half shells to have a semicircular cross-section, the left and right half shells can be easily contacted to form a device that easily collects rice grains.
[0035] In some embodiments, the threshing drum located in the left half shell extends in the same direction as the left half shell, and the threshing drum located in the right half shell extends in the same direction as the right half shell. The threshing drum located in the left half shell is a first threshing drum 501, and the threshing drum located in the right half shell is a second threshing drum 502. By extending the first threshing drum in the same direction as the left half shell, the space in the left half shell is fully utilized. Similarly, by extending the second threshing drum in the same direction as the right half shell, the space in the right half shell is fully utilized. As a result, the overall size of the handheld rice single-plant threshing device is small, making it convenient for the operator to hold it.
[0036] In some embodiments, a first partition is provided within the left half shell, with a first through-hole defined therein. The motor located within the left half shell is a first motor 601, which is mounted at one end of the inner side of the left half shell. The first motor's shaft passes through the first through-hole and is fixedly connected to the threshing drum within the left half shell. The provision of the first partition prevents rice grains knocked off by the threshing drum from falling into the location of the first motor, facilitating their collection.
[0037] In some embodiments, a second partition is provided in the right half shell, a second through hole is provided on the second partition, the motor located in the right half shell is a second motor 602, the second motor is mounted on one end of the inner side of the right half shell, the rotating shaft of the second motor passes through the second through hole and is fixedly connected to the threshing drum located in the right half shell, the first partition and the second partition are horizontally fitted together to divide the interior of the cylindrical structure into a threshing bin 106 and a motor bin 107, the rice ear entrance, the ear stalk exit and the two threshing drums are all located in the threshing bin, and the first motor and the second motor are both located in the motor bin. By providing the second partition, the rice grains knocked down by the threshing drum will not fall to the location of the second motor, making it convenient to collect the rice grains from the threshing bin.
[0038] In some embodiments, a third partition is provided within the left half shell, and a fourth partition is provided within the right half shell. The third and fourth partitions are horizontally aligned to separate the battery compartment from the motor compartment. The third partition isolates the mounting locations of the first motor and the battery, preventing motor vibration from damaging the battery.
[0039] In some embodiments, the outer surface of the handle is covered with a rubber sleeve. The rubber sleeve is provided to increase friction and make it easier for the operator to grasp.
[0040] The present embodiment provides a method for using a handheld single-plant rice threshing device, which includes the following steps: turning on a first switch, controlling the left and right half shells to open by a handle, so that the stem of the rice ear passes through the rice ear entrance and the ear stalk outlet; controlling the left and right half shells to close by a handle, and energizing the positive pole of the contact switch and the negative pole of the contact switch; two motors respectively drive two threshing drums to rotate in opposite directions, and move the handheld single-plant rice threshing device from bottom to top along the rice ear, so that the rice grains on the rice ear are knocked off by the threshing drums and fall into the threshing bin, and the ear stalk is pulled out from the ear stalk outlet as the handheld single-plant rice threshing device moves, and the outlet baffle of the rice grain outlet is opened to collect the rice grains.
[0041] The following are three specific methods of using a handheld rice single plant threshing device:
[0042] Method of Use 1: After harvesting rice ears in the field, threshing is performed indoors (at intervals). The operator holds the left handle 201 and the right handle 202 with one hand, spreads the left and right half shells 101 and 102, and turns on the first switch 3. The rice ear entrance 104 faces upward, allowing the rice ear stem to pass through the rice ear entrance 104 and the stalk exit 105. The operator closes the left and right half shells 101 and 102 using the left and right handles 201 and 202. The positive terminal 401 of the contact switch connects with the negative terminal 402 of the contact switch, forming a closed circuit. The first motor 601 drives the first threshing drum 501 to rotate in the right direction, while the second motor 602 drives the second threshing drum 502 to rotate in the left direction. With the other hand, the operator grasps the stalk at the stalk exit 105 and pulls downward at a constant speed, driving the rice ear through the gap between the first threshing drum 501 and the second threshing drum 502, knocking the rice grains off. After all the stalks have passed through the stalk outlet 105 , the first switch 3 is closed, and the operator holds the left handle 201 and the right handle 202 with one hand, opens the left half shell 101 and the right half shell 102 , and pours out the rice grains for collection.
[0043] Method of use 2: After the rice ears are harvested in the field, they are threshed indoors (continuously). Make sure that the first switch 3 is in the closed state, open the outlet baffle 104, and the operator holds the left handle 201 and the right handle 202 with one hand to control the closure of the left half shell 101 and the right half shell 102. Insert the rice stalk from the rice ear entrance 104 and make it pass through the stalk outlet 105. Open the first switch 3 to form a closed circuit. The first motor 601 drives the first threshing drum 501 to rotate in the right hand, and the second motor 602 drives the second threshing drum 502 to rotate in the left hand. The operator grabs the stalk at the stalk outlet 105 with his other hand and pulls it down at a constant speed, driving the rice ears through the gap between the first threshing drum 501 and the second threshing drum 502.
[0044] The rice grains are knocked down and fall out of the outlet baffle 104. After all the stalks have passed through the stalk outlet 105, the first switch 3 is closed and the new rice stalks are passed through the rice stalk entrance 104 and out of the stalk outlet 105.
[0045] Turn on the first switch 3 and continue the threshing operation.
[0046] Method of Use Three: Direct Field Threshing. Without harvesting the rice ears, the operator grips the left and right handles 201 and 202 with one hand, spreads the left and right housing halves 101 and 102, and turns on the first switch 3. With the rice ear inlet 104 facing upward, the stems of the rice ears pass through the inlet 104 and the stalk outlet 105. The operator closes the left and right housing halves 101 and 102 using the left and right handles 201 and 202. The positive terminal 401 of the contact switch connects to the negative terminal 402, forming a closed circuit. The first motor 601 drives the first threshing drum 501 in right-handed rotation, while the second motor 602 drives the second threshing drum 502 in left-handed rotation. The threshing machine is moved at a constant speed in the direction of the rice ears until the stalks are completely clear of the stalk outlet 105. The first switch 3 is then turned off. The left and right housing halves 101 and 102 are spread open using the left and right handles 201 and 202, and the rice grains are poured out and collected.
[0047] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.
Claims
1. A handheld rice single plant threshing device, characterized by: The invention comprises a left half shell, a right half shell, a threshing drum, a motor, a battery and a first switch. The number of the threshing drum and the number of the motor are both two. The two motors are fixedly installed in the left half shell and the right half shell respectively. The two threshing drums are fixedly connected to the rotating shafts of the two motors respectively. The two threshing drums rotate relative to the left half shell and the right half shell respectively; the battery is installed in the left half shell or the right half shell, the first switch is set on the left half shell or the right half shell, the battery is electrically connected to the first switch, the left half shell is provided with a positive pole of the contact switch, the right half shell is provided with a negative pole of the contact switch, and the positive and negative poles of a motor are connected. They are electrically connected to the positive pole of the contact switch and the battery respectively, and the positive and negative poles of the other motor are connected to the negative pole of the contact switch and the first switch respectively; a first opening is provided on one side of the left half shell and the right half shell, and a second opening is provided on the other side of the left half shell and the right half shell. When the left half shell and the right half shell are in a fitted state, the positive pole of the contact switch is electrically connected to the negative pole of the contact switch; the two first openings form a rice ear entrance, and the two second openings form a rice stalk outlet. The rice ear entrance corresponds to the position of the rice stalk outlet, and the area leading from the rice ear entrance to the rice stalk outlet is located between the two threshing drums.
2. A handheld rice single plant threshing device according to claim 1, characterized in that: Both the left and right half shells are provided with handles.
3. The handheld rice single plant threshing device according to claim 1, characterized in that: The left half shell or the right half shell is provided with a rice grain outlet, and the rice grain outlet is provided with an outlet baffle.
4. The handheld rice single plant threshing device according to claim 1, characterized in that: The cross sections of the left half shell and the right half shell are both semicircular. When the left half shell and the right half shell are in a fitted state, the left half shell and the right half shell form a cylindrical structure with a hollow interior.
5. The handheld rice single plant threshing device according to claim 1, characterized in that: The extending direction of the threshing drum located in the left half shell is consistent with the extending direction of the left half shell, and the extending direction of the threshing drum located in the right half shell is consistent with the extending direction of the right half shell.
6. The handheld rice single-plant threshing device according to claim 4, characterized in that: A first partition is provided in the left half shell, and a first through hole is provided on the first partition. The motor located in the left half shell is the first motor, which is installed at one end of the inner side of the left half shell. The rotating shaft of the first motor passes through the first through hole and is fixedly connected to the threshing drum located in the left half shell.
7. The handheld rice individual plant threshing device according to claim 6, characterized in that: A second partition is provided in the right half shell, and a second through hole is provided on the second partition. The motor located in the right half shell is the second motor, and the second motor is installed at one end of the inner side of the right half shell. The rotating shaft of the second motor passes through the second through hole and is fixedly connected to the threshing drum located in the right half shell. The first partition and the second partition are horizontally fitted to divide the interior of the cylindrical structure into a threshing bin and a motor bin. The rice ear entrance, rice stalk outlet and two threshing drums are all located in the threshing bin, and the first motor and the second motor are both located in the motor bin.
8. The handheld rice single-plant threshing device according to claim 7, characterized in that: A third partition is provided in the left half shell, and a fourth partition is provided in the right half shell. The third partition and the fourth partition are horizontally fitted together to divide the battery compartment for installing the battery from the motor compartment.
9. The handheld rice single-plant threshing device according to claim 2, characterized in that: The outer surface of the handle is covered with a rubber sleeve.
10. A method for using a handheld rice single plant threshing device, using the handheld rice single plant threshing device according to claim 2, characterized in that: The following steps are involved: There is no need to harvest rice ears. Turn on the first switch, control the left and right half shells to open by the handle, and the rice ear entrance of the thresher is facing upward, so that the rice ear stems pass through the rice ear entrance and the ear stalk outlet; control the left and right half shells to close by the handle, and energize the positive pole of the contact switch and the negative pole of the contact switch; the two motors respectively drive the two threshing drums to rotate in opposite directions, and move the handheld rice single-plant threshing device from bottom to top along the rice ears. The rice grains on the rice ears are knocked down by the threshing drums and fall into the threshing bin. The ear stalks are pulled out from the ear stalk outlet as the handheld rice single-plant threshing device moves, and the outlet baffle of the rice grain outlet is opened to collect the rice grains.
Citation Information
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PortabLe sampLing device capabLe of achieving on-site threshing
CN108848953A
Rice single ear threshing machine
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