Portable intelligent seeder for wheat test field

Abstract

The application discloses a portable intelligent seeder for a wheat test field, and relates to the technical field of crop seeding. The seeder comprises a placing rack, a connecting plate fixedly connected to the placing rack, a discharging rack rotationally connected to the placing rack, wheels fixedly connected to the discharging rack, a handle fixedly connected to the connecting plate, storage grooves equidistantly distributed in a circumferential direction and formed in the discharging rack, a placing cavity formed in the upper part of the placing rack, a supplement cavity formed in the inner side of the placing rack, a supplement rack rotationally connected to the side of the placing rack close to the supplement cavity, a receiving groove formed in the supplement rack, the receiving groove being communicated with the supplement cavity, a discharging channel formed in the lower part of the placing rack, and discharge ports equidistantly distributed in a circumferential direction and formed in the wheels. The storage grooves equidistantly distributed in the circumferential direction are synchronously rotated with the wheels, and are matched with the discharging channel and the discharge ports, so that the wheat seeds are evenly and quantitatively put, the uniformity of the test field seeding is ensured, and the comparability of the scientific research data is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crop seeding, and particularly relates to a portable intelligent seeder for wheat test field. BACKGROUND

[0002] With the development of modern agriculture towards refinement and specialization, especially in agricultural research, variety selection and small plot planting, higher requirements are put forward for the uniformity, quantification and repeatability of seeding. Portable wheat seeding devices are widely used in small-area seeding operations of scientific research units, agricultural technology popularization departments and individual farmers due to their small size, light weight, flexible operation, no need for large machinery traction and low cost. The devices are usually pushed or carried by manpower and can adapt to complex terrains such as hills, slopes and ridge edges, which are difficult for large seeding machines to enter, and have good use flexibility and operation adaptability.

[0003] However, the existing portable wheat seeding devices still have many technical defects in actual application, which seriously affect the seeding quality and operation reliability. First, the wheat seeds often contain impurities or have different particle sizes during harvesting and storage, which can easily cause the 'bridge' phenomenon (i.e. the seeds form an arch-shaped structure in the box and cannot fall freely) in the seed box, resulting in the interruption of seed supply of the seed metering device. Second, the storage groove on the seed metering wheel is easily jammed by abnormal particles, broken particles or impurities, causing individual stations to fail to take seeds, thereby causing local or continuous missed seeding.

[0004] The above problems directly lead to uneven seeding density, reduced seedling rate, distorted test data, and seriously affect the accuracy of scientific research and the consistency of agricultural production. Especially in agricultural research test fields, the consistency of seeding of each row and each hole is extremely high, and slight missed seeding or density deviation can affect the scientificity of the research results of variety comparison, fertilizer test and other studies. SUMMARY

[0005] In order to overcome the shortcomings of missed seeding of wheat seeds, the present application provides a portable intelligent seeder for wheat test field.

[0006] A portable intelligent seeder for wheat test field, comprising a placing rack, a connecting plate fixedly connected to the placing rack, a feeding rack rotatably connected to the placing rack, a wheel fixedly connected to the feeding rack, a handle fixedly connected to the connecting plate, a storage groove equidistantly distributed along the circumference in the feeding rack, a placing cavity opened in the upper part of the placing rack, a supplement cavity opened in the inner side of the placing rack, a supplement rack rotatably connected to the side of the placing rack close to the supplement cavity, a receiving groove opened in the supplement rack, the receiving groove being communicated with the supplement cavity, a feeding channel opened in the lower part of the placing rack, and a discharge port equidistantly distributed along the circumference and opened in the wheel.

[0007] In a preferred embodiment of the present application, the discharge port is equal in number to the storage slots.

[0008] In a preferred embodiment of the present application, the storage slot rotates below the placement cavity, and the discharge port rotates below the discharge passage.

[0009] In a preferred embodiment of the present application, a first torsion spring is further included, which is fixed between the replenishment frame and the connecting plate, the replenishment frame is fixed with a first connecting rod, the first connecting rod is in arc sliding connection with the placement frame, a measuring rod is in sliding connection with the placement frame, the measuring rod is in contact with the discharge frame, and a second connecting rod is in rotary connection between the first connecting rod and the discharge frame.

[0010] In a preferred embodiment of the present application, the end of the measuring rod close to the discharge frame is provided as a tapered portion, and the tapered portion is inserted into the storage slot during the rotation of the storage slot.

[0011] In a preferred embodiment of the present application, a cleaning rod for cleaning the discharge port is further included, the cleaning rod is in rotary connection with the placement frame, and a second torsion spring is fixed between the cleaning rod and the placement frame.

[0012] In a preferred embodiment of the present application, the side of the cleaning rod close to the discharge port is provided as a wedge-shaped portion.

[0013] In a preferred embodiment of the present application, a contact switch is further included, which is fixed on the measuring rod, a contact surface is provided on the placement frame, the contact switch moves in contact with the contact surface, a buzzer is fixed on the handle, and the contact switch is electrically connected with the buzzer through a control module.

[0014] In a preferred embodiment of the present application, a first cylinder cover and a second cylinder cover are further included, the first cylinder cover is arranged on the side of the connecting plate close to the placement cavity, and the second cylinder cover is arranged on the side of the connecting plate close to the compensation cavity.

[0015] The present application synchronously rotates the storage slots with the wheels through the circumferential uniform distribution, cooperates with the discharge passage and the discharge port, realizes the equal-interval and quantitative feeding of the wheat seeds, ensures the uniformity of the test field sowing, and improves the comparability of the scientific research data.

[0016] The present application detects the state of the storage slot through the measuring rod, realizes the automatic reseeding of the standby seeds through the linkage replenishment frame, effectively deals with the missing seeding problem caused by the initial idling and the seed blocking in the placement cavity, and improves the sowing integrity.

[0017] The application sets the cleaning rod and the second torsional spring combination mechanism, which can automatically clean the discharge port during the rotation of the wheel, prevent the soil from blocking, ensure the smooth seed discharge, and adapt to the wet or heavy soil environment.

[0018] The application links the contact switch and the buzzer, and sends an alarm when detecting the risk of empty sowing, so as to remind the operator to intervene in time and avoid large-area missed sowing. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the application.

[0020] Figure 2 It is a three-dimensional structure sectional view of the application.

[0021] Figure 3 It is a three-dimensional structure schematic diagram of the components such as the feeding rack and the supplement rack of the application.

[0022] Figure 4 It is a three-dimensional structure schematic diagram of the supplement rack and the first torsional spring of the application.

[0023] Figure 5 It is a three-dimensional structure schematic diagram of the wheel and the feeding rack of the application.

[0024] Figure 6 It is a three-dimensional structure schematic diagram of the components such as the placing rack and the connecting plate of the application.

[0025] Figure 7 It is a three-dimensional structure schematic diagram of the components such as the first connecting rod and the second connecting rod of the application.

[0026] Figure 8 It is a three-dimensional structure schematic diagram of the cleaning rod and the second torsional spring of the application.

[0027] Figure 9 It is a three-dimensional structure schematic diagram of the components such as the placing rack, the measuring rod and the contact switch of the application.

[0028] Figure 10 It is a three-dimensional structure schematic diagram of the components such as the buzzer, the first cylinder cover and the second cylinder cover of the application.

[0029] In the drawings: 101_placing rack, 1011_connecting plate, 102_wheel, 103_handle, 104_feeding rack, 1041_storage groove, 105_placing cavity, 106_supplement rack, 1061_material receiving groove, 107_feeding channel, 108_discharge port, 109_supplement cavity, 201_first torsional spring, 202_first connecting rod, 203_second connecting rod, 204_measuring rod, 301_cleaning rod, 302_second torsional spring, 401_contact switch, 402_contact surface, 403_buzzer, 501_first cylinder cover, 502_second cylinder cover. Detailed Implementation

[0030] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0031] Example 1: A portable intelligent seeder for wheat experimental fields, such as... Figures 1 to 5 As shown, the device includes a placement frame 101, which is injection molded from high-strength aluminum alloy or engineering plastic. The overall structure is lightweight, facilitating field transport and operation. A connecting plate 1011 is fixed to the front of the placement frame 101, and a handle 103 is fixed to the connecting plate 1011. The handle 103 is foldable and covered with a non-slip rubber sleeve for easy gripping and pushing. The connecting plate 1011 is a metal plate used to support and connect the handle 103. A feeding rack 104 is rotatably connected to the placement frame 101. The feeding rack 104 has a disc-shaped structure and can rotate around a central axis. Wheels 102 are fixed to the feeding rack 104. The wheels 102 are made of rubber or wear-resistant plastic and have a moderate outer diameter for smooth rolling in loose soil. The feeding rack 104 has circumferentially spaced storage troughs 1041, each with a uniform volume, ensuring quantitative seed dispensing each time. The upper part of the placement rack 101 has a placement cavity 105 for storing primary wheat seeds; the inner side of the placement rack 101 has a replenishment cavity 109 for storing spare seeds. A replenishment rack 106 is rotatably connected to the side of the placement rack 101 near the replenishment cavity 109; this replenishment rack 106 is a swinging structure. A receiving groove 1061 is provided on the replenishment rack 106, which can connect or disconnect with the replenishment cavity 109 as the replenishment rack 106 swings. The receiving groove 1061 communicates with the replenishment cavity 109. A discharge channel 107 is provided in the lower part of the placement rack 101; this channel is an inclined guide channel used to guide seeds into the discharge port 108. The wheels 102 have ten discharge ports 108 evenly distributed circumferentially, the same number as the storage troughs 1041, ensuring synchronous rotation, avoiding misaligned sowing, and ensuring that each rotation corresponds to one workstation, achieving equidistant sowing. When the storage trough 1041 rotates, it passes under the placement chamber 105, achieving automatic seed picking; when the discharge port 108 rotates, it passes under the discharge channel 107, achieving automatic seed dispensing. The two rotate synchronously, forming a continuous sowing cycle.

[0032] like Figure 4 , Figure 6 and Figure 7As shown, it also includes a first torsion spring 201, which is fixed between the replenishment frame 106 and the connecting plate 1011, providing a reset elastic force. The replenishment frame 106 is fixed with a first connecting rod 202, which is a metal connecting rod, used for transmitting motion. The first connecting rod 202 is slidingly connected with the placement frame 101 along an arc shape, limiting its motion trajectory. The placement frame 101 is slidingly connected with a measuring rod 204, which is made of stainless steel and can slide in the guide hole. The measuring rod 204 is in contact with the blanking frame 104, used for detecting whether the seed storage groove 1041 is filled with seeds. The first connecting rod 202 and the blanking frame 104 are rotationally connected with a second connecting rod 203, which is a hinged structure, used for converting the displacement of the measuring rod 204 into the swing operation of the replenishment frame 106. The end of the measuring rod 204 close to the blanking frame 104 is provided with a tapered portion, which is inserted into the seed storage groove 1041 during the rotation of the seed storage groove 1041. If there are seeds in the groove, the tapered portion cannot be inserted; if the groove is empty, the tapered portion can be inserted, triggering the compensation mechanism.

[0033] As shown in Figure 6 and Figure 10 It also includes a first cylinder cover 501 for sealing the placement cavity 105, which is threadedly connected to the connecting plate 1011 close to the placement cavity 105; it also includes a second cylinder cover 502 for sealing the replenishment cavity 109, which is threadedly connected to the connecting plate 1011 close to the compensation cavity; both cylinder covers are provided with a breathable waterproof film, balancing the internal and external air pressure, preventing the seeds from being damp and caking.

[0034] The operation principle of sowing is as follows: first, open the first cylinder cover 501 and the second cylinder cover 502, and store the wheat seeds in the placement cavity 105 and the replenishment cavity 109 respectively, the cylinder cover is a threaded sealing structure, preventing rainwater or dust from entering. Then, place the wheel 102 in the sowing trench of the wheat test field, hold the handle 103, and push the wheel 102 to roll forward along the trench. During the forward movement, the wheel 102 drives the blanking frame 104 to rotate, thereby driving the seed storage groove 1041 on it to rotate. When the seed storage groove 1041 rotates to the uppermost position, it is in communication with the placement cavity 105 below, at this time, there are appropriate amount of wheat seeds filling the seed storage groove 1041 by gravity, realizing quantitative seed taking. When the seed storage groove 1041 rotates to the lowermost position, it is in communication with the upper part of the blanking passage 107, at this time, the wheat seeds in the seed storage groove 1041 fall into the blanking passage 107 under the action of gravity, and are discharged to the trench through the discharge port 108 below the blanking passage 107, realizing equal-interval and quantitative sowing, meeting the high requirements of the test field on sowing uniformity and consistency.

[0035] In the above sowing process, in the early stage, since the wheat seeds are received from the top storage tank 1041, it takes a certain time to rotate to the bottom, so there may be empty sowing (i.e. no seeds in the initial stage). In the later stage, since the seed jamming or bridging phenomenon may occur in the storage cavity 105, leading to the failure of some storage tanks 1041 to receive wheat seeds, which will eventually lead to the occurrence of seed missing and empty sowing. In order to avoid the situation of empty sowing, the following method is used for sowing compensation: for the storage tank 1041 that receives the wheat seeds, the internal seeds will block the insertion of the conical part of the measuring rod 204, the second connecting rod 203 pushes the first connecting rod 202, thereby pushing the supplement frame 106 to rotate a certain angle, so that the receiving groove 1061 of the supplement frame 106 is temporarily aligned with the supplement cavity 109, a small amount of standby seeds fall into the receiving groove 1061, and the first torsional spring 201 is twisted and deformed to store energy; if the storage tank 1041 does not receive the wheat seeds (empty tank), the conical part of the measuring rod 204 can be inserted into the storage tank 1041, at this time the first torsional spring 201 quickly resets, and the supplement frame 106 is pushed counterclockwise to make the standby seeds in the receiving groove 1061 fall into the discharge channel 107 under the action of gravity, and then discharged to the ditch through the discharge port 108, realizing empty sowing compensation sowing and effectively reducing the missing sowing rate.

[0036] Example 2: based on example 1, as shown in Figure 7 and Figure 8 A cleaning rod 301 for cleaning the discharge port 108 is further included, which is a flexible metal rod or a flexible hard plastic rod, and is rotationally connected with the placement frame 101 and can swing within a certain angle. The side close to the discharge port 108 of the cleaning rod 301 is provided with a wedge-shaped part to facilitate insertion into the discharge port 108 to remove the blockage. The second torsional spring 302 is fixed between the cleaning rod 301 and the placement frame 101 to provide a reset elastic force.

[0037] In order to prevent the discharge port 108 from being blocked by mud or wet soil, the wheel body edge of the wheel 102 extrudes the cleaning rod 301 to rotate upward during rotation, and the second torsional spring 302 is twisted and deformed to store energy; when the discharge port 108 rotates to the position corresponding to the cleaning rod 301, the second torsional spring 302 resets to drive the cleaning rod 301 to rotate downward, and the wedge-shaped part of the cleaning rod 301 inserts into the discharge port 108 to push the attached or blocked mud downward, realizing automatic unblocking and avoiding affecting the normal sowing smoothness.

[0038] Example 3: based on example 2, as shown in Figure 9 and Figure 10As shown, the contact switch 401 is a micro switch or conductive contact sensor fixed to the measuring rod 204. The contact surface 402 is a metal conductive sheet or an insulated trigger surface arranged on the placing rack 101. The contact switch 401 is moved to contact or disconnect the contact surface 402 to form an on-off circuit. The contact switch 401 is electrically connected with the buzzer 403 through the control module which is a micro single-chip microcomputer or a logic circuit.

[0039] In the above seeding process, when the measuring rod 204 is inserted into the empty storage groove 1041 (i.e. the empty seeding risk is detected), the measuring rod 204 drives the contact switch 401 on it to move and contact the contact surface 402 on the placing rack 101, the circuit is turned on, the contact switch 401 controls the buzzer 403 to sound an alarm through the control module, prompting the seeder that the empty seeding situation may occur at this time, and the seeder needs to pay attention to observation, slow down the pushing speed or check whether the main cavity is blocked by seeds, realizing the man-machine cooperative early warning and improving the seeding reliability.

[0040] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable the person skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A portable intelligent seeder for wheat test plots, characterized by: The utility model provides a kind of material dispensing device, including the placement rack (101), the connecting plate (1011) is fixedly connected on the placement rack (101), the blanking frame (104) is rotatably connected on the placement rack (101), the wheel (102) is fixedly connected on the blanking frame (104), the handle (103) is fixedly connected on the connecting plate (1011), the blanking frame (104) is opened in the material storage groove (1041) that is distributed equidistantly along circumference, the placement cavity (105) is opened in the upper portion of the placement rack (101), the supplement cavity (109) is opened in the inner side of the placement rack (101), the supplement frame (106) is rotatably connected on the side of the placement rack (101) close to the supplement cavity (109), the supplement frame (106) is opened in the material receiving groove (1061), the material receiving groove (1061) is communicated with the supplement cavity (109), the lower portion of the placement rack (101) is opened in the blanking channel (107), the wheel (102) is opened in the discharge port (108) that is distributed equidistantly along circumference; The discharge port (108) is equal in number with the material storage groove (1041);The material storage groove (1041) passes below the placement cavity (105) when rotating, and the discharge port (108) passes below the blanking channel (107) when rotating;Further include first torsion spring (201), the first torsion spring (201) is fixedly connected between the supplement frame (106) and the connecting plate (1011), the first connecting rod (202) is fixedly connected on the supplement frame (106), the first connecting rod (202) is slidably connected along arc with the placement rack (101), the measuring rod (204) is slidably connected on the placement rack (101), the measuring rod (204) is in contact with the blanking frame (104), the second connecting rod (203) is rotatably connected between the first connecting rod (202) and the blanking frame (104);The end of the measuring rod (204) close to the blanking frame (104) is set as taper portion, and the taper portion is inserted into the material storage groove (1041) during the rotating process of the material storage groove (1041).

2. A portable intelligent seeder for wheat test plots as claimed in claim 1, wherein: Further include cleaning rod (301) for cleaning the discharge port (108), the cleaning rod (301) is rotatably connected with the placement rack (101), and the second torsion spring (302) is fixedly connected between the cleaning rod (301) and the placement rack (101).

3. A portable intelligent seeder for wheat test plots as claimed in claim 2, wherein: The side of the cleaning rod (301) close to the discharge port (108) is set as wedge portion.

4. The portable intelligent seeder for wheat test plots according to claim 3, characterized in that: Further include contact switch (401), the contact switch (401) is fixedly connected on the measuring rod (204), the contact surface (402) is arranged on the placement rack (101), the contact switch (401) moves and contacts with the contact surface (402), the buzzer (403) is fixedly connected on the handle (103), and the contact switch (401) is electrically connected with the buzzer (403) by control module.

5. A portable intelligent seeder for wheat test plots as claimed in claim 4 wherein: Further comprise first cylinder cover (501) and second cylinder cover (502), first cylinder cover (501) is arranged in the connecting plate (1011) near the side of the placement cavity (105), second cylinder cover (502) is arranged in the connecting plate (1011) near the side of the compensation cavity.

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