A water and fertilizer control device for a special seedbed for potato breeding

Abstract

The present invention relates to the field of equipment for directly transporting liquids into the soil, and specifically relates to a water and fertilizer control device for a special seedbed for potato breeding. The device includes a movable base, a liftable base frame, and a conveying control member. The conveying control member includes N outflow holes whose opening and closing states can be independently controlled. The N outflow holes are respectively detachably communicated with the seedbed through N small tubes; the multi-groove bed body includes a plurality of breeding grooves. Above the base frame, there is also provided a detection component that can detect the humidity of the soil in each breeding groove in at least one conveying sub-region and can be telescoped back and forth. The detection component includes N non-contact soil humidity sensors for respectively detecting the humidity of the soil in four breeding grooves in at least one conveying sub-region. The existing water and fertilizer control device for a special seedbed for potato breeding has the problem of being unable to transport water and fertilizer specifically for each potato seed, and this device can transport water and fertilizer specifically for each potato seed.

Description

Technical Field

[0001] The invention relates to the field of equipment for directly transporting liquid into soil, and in particular to a water and fertilizer control device for a special seedling bed for potato breeding. Background Art

[0002] When breeding potatoes indoors, a seedbed is usually used. The seedbed usually includes a bed with soil and support rods for supporting the bed. The bed area is about 3 square meters and about 300 potato seeds can be planted.

[0003] Potato seeds need irrigation and fertilization during their growth process. In order to be more efficient, water-fertilizer integrated technology is usually adopted, that is, fertilizer and irrigation water are mixed into water-fertilizer and transported to the soil to achieve the integration of irrigation and fertilization.

[0004] Existing water and fertilizer control devices usually deliver water and fertilizer to the entire soil in the bed. However, even potato seeds from the same potato will have different characteristics during growth and different needs for water and fertilizer. This type of centralized water and fertilizer control device obviously cannot meet the needs of differentiated water and fertilizer delivery to each potato seed in the precision potato breeding.

[0005] Therefore, the existing water and fertilizer control device for the special seedbed for potato breeding has the problem of being unable to deliver water and fertilizer to each potato seed in a targeted manner. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a water and fertilizer control device for a special seedling bed for potato breeding, which can deliver water and fertilizer to each potato seed in a targeted manner.

[0007] To solve the above technical problems, a water and fertilizer control device for a special seedbed for potato breeding provided by the present invention includes a movable base and a liftable base frame arranged above the base; a water and fertilizer tank for placing water and fertilizer is arranged on the base frame; a conveying control member is arranged on the base frame, and the conveying control member includes N outflow holes whose opening and closing states can be independently controlled, N is a positive integer that is a multiple of four, and the N outflow holes are respectively detachably communicated with the seedbed through N small pipes; the water and fertilizer tank is communicated with the conveying control member through a conveying pipe, and a pump is arranged on the conveying pipe; the seedbed includes a multi-trough bed body, the multi-trough bed body includes at least one conveying sub-area, each conveying sub-area includes four breeding troughs arranged in a row of four columns, a horizontal pipe is arranged beside each column of breeding troughs, the horizontal pipe has four sub-cavities, four thin pipes for conveying water and fertilizer to the soil in each breeding trough are installed on the horizontal pipe, and the four thin pipes are respectively communicated with the four sub-cavities, and the ends of the thin pipes far away from the horizontal pipe are all inserted into the soil; a shunt adapter for detachably plugging the ends of the four small pipes far away from the outflow holes is fixedly installed at the rear end of the horizontal pipe, and every four small pipes are respectively communicated with the four sub-cavities through a shunt adapter; through holes are opened at the bottoms of the breeding troughs, and air-permeable plates are fixedly installed in the through holes; above the base frame, a detection component that can detect the humidity of the soil in each breeding trough in at least one conveying sub-area and can stretch back and forth is also arranged, and the detection component includes N non-contact soil humidity sensors for respectively detecting the humidity of the soil in the four breeding troughs in at least one conveying sub-area.

[0008] As a further improvement of the present invention: the base includes a flat plate and four support columns fixedly installed at the bottom of the flat plate, and universal wheels are installed at the bottoms of the support columns; four guide columns are fixedly installed at the bottom of the base frame, four limit holes for the four guide columns to slide up and down are opened on the flat plate, a vertical motor is fixedly installed at the bottom of the flat plate, the output shaft of the vertical motor is in transmission connection with a vertically arranged ball screw, the ball screw is provided with a screw nut matching the ball screw, the screw nut is fixedly connected with the base frame, and holes for the ball screw to pass through are opened on both the flat plate and the base frame.

[0009] As a further improvement of the present invention: the conveying control member includes a transfer box, the end of the conveying pipe far away from the water and fertilizer tank is connected to the inlet of the transfer box, a shunt block is arranged above the transfer box, a through groove is arranged in the shunt block, N first inlet holes are opened at the top of the through groove, the N first inlet holes are respectively communicated with the N outflow holes through vertical passages, N second inlet holes with positions and shapes corresponding to the first inlet holes are opened at the bottom of the through groove, and the outlet of the transfer box is communicated with the N second inlet holes of the through groove; N blocking blocks for respectively controlling the opening and closing states of the N first inlet holes are arranged in the through groove, through holes are opened in the blocking blocks, and N first horizontal telescopic members for driving the N blocking blocks to slide left and right in the through groove are installed on the shunt block.

[0010] As a further improvement of the present invention: a partition rack that matches the shape and size of the lumen is provided in the lumen of the horizontal tube, and the partition rack is used to divide the lumen of the horizontal tube into four sub-cavities. The partition rack has a cylindrical structure, and four grooves are formed on the outer wall of the partition rack. Four sub-cavities are formed between the four grooves and the inner tube wall of the horizontal tube.

[0011] As a further improvement of the present invention: the shunt adapter includes a hollow frustum. On the bottom surface of the hollow frustum close to the horizontal tube, outflow ports corresponding to the positions of the four sub-cavities are provided. On the bottom surface of the hollow frustum far from the horizontal tube, four insertion holes are provided for respectively inserting one end of four small tubes far from the outflow holes; the inner cavity of the frustum of the hollow frustum is divided into four sub-passages by a partition plate with a cross-shaped cross-section.

[0012] As a further improvement of the present invention: the detection assembly includes a scissor structure that can extend forward when unfolded and shorten backward when folded, and a second horizontal telescopic member fixedly installed on the base frame. N non-contact soil moisture sensors are fixedly installed on the scissor structure; the scissor structure includes a plurality of rhombus-shaped modules. The hinge shaft at the rearmost end in the rhombus-shaped module at the rearmost end of the scissor structure is fixedly connected to the second horizontal telescopic member, and the bottom of the hinge shaft at the foremost end in the rhombus-shaped module at the rearmost end of the scissor structure is fixedly connected to the top of the telescopic end of the second horizontal telescopic member.

[0013] The beneficial effects of the present invention are as follows: A water and fertilizer control device for a special seedbed for potato breeding provided by the present invention can deliver water and fertilizer specifically for each potato seed.

[0014] The seedbed of the device has a plurality of separate breeding grooves. The conveying control member includes N non-contact soil moisture sensors for respectively detecting the soil moisture in four breeding grooves in at least one conveying sub-region. By extending the detection assembly forward, the non-contact soil moisture sensors are aligned with each breeding groove to measure the moisture of each breeding groove. Subsequently, the opening and closing states of N outflow holes are respectively controlled according to the moisture of each breeding groove. If the moisture of the breeding groove is insufficient, the corresponding outflow hole is opened, and the water and fertilizer in the water and fertilizer tank are pumped out by a pump. Since the N outflow holes are respectively connected to the four sub-cavities of the horizontal tube through N small tubes, and each sub-cavity transports the water and fertilizer into the soil through a thin tube inserted into the soil, the water and fertilizer will flow through the opened outflow hole, flow through the small tube, the shunt adapter, the sub-cavity and then into the thin tube, and the water and fertilizer are transported into the breeding groove with insufficient moisture. In this way, the refined management of specifically delivering water and fertilizer to each potato seed is realized, which is more conducive to potato seed cultivation and improves the survival rate of potato seeds.

[0015] Meanwhile, since the base frame of the device can be lifted, the height of the device can be changed to adapt to seedbeds of different sizes. Additionally, the base can be moved, enabling the device to be docked with multiple seedbeds. Therefore, the device can not only achieve refined management but also has strong applicability. Brief Description of the Drawings

[0016] Figure 1 Schematic diagram of the overall structure of the device and the seedbed provided by the present invention;

[0017] Figure 2 Top view of the device and the seedbed provided by the present invention;

[0018] Figure 3 Left view of the device and the seedbed provided by the present invention;

[0019] Figure 4 Schematic diagram of the overall structure of the device and the shunt connector provided by the present invention;

[0020] Figure 5 Schematic diagram of the overall structure of the base frame in the present invention;

[0021] Figure 6 Perspective schematic diagram of the overall structure of the base frame in the present invention;

[0022] Figure 7 Assembly drawing of the base frame, vertical motor, ball screw and guide post in the present invention;

[0023] Figure 8 Assembly drawing of the water and fertilizer tank, delivery pipe, delivery control member and slide rail in the present invention;

[0024] Figure 9 Partial structure schematic diagram of the delivery control member in the present invention;

[0025] Figure 10 Perspective schematic diagram of the overall structure of the small pipe support in the present invention;

[0026] Figure 11 Perspective schematic diagram of the overall structure of the transfer box in the present invention;

[0027] Figure 12 Perspective schematic diagram of the overall structure of the shunt block in the present invention;

[0028] Figure 13 Schematic diagram of the positional relationship between the first horizontal telescopic member and the plug block in the present invention;

[0029] Figure 14 Schematic diagram of the positional relationship between the first horizontal telescopic member and the shunt block in the present invention;

[0030] Figure 15Schematic diagram of the overall structure of the multi-slot bed body in the present invention;

[0031] Figure 16 Perspective schematic diagram of the overall structure of the air-permeable plate in the present invention;

[0032] Figure 17 Schematic diagram of the overall structure of the multi-slot bed body, horizontal pipe, thin pipe and shunt connector in the present invention;

[0033] Figure 18 Schematic diagram of the overall structure of the horizontal pipe, thin pipe and shunt connector in the present invention;

[0034] Figure 19 Schematic diagram of the overall structure of the partition rack in the present invention;

[0035] Figure 20 Schematic diagram of the overall structure of the partition rack from another angle in the present invention;

[0036] Figure 21 Perspective schematic diagram of the overall structure of the horizontal pipe, thin pipe and partition rack in the present invention;

[0037] Figure 22 Perspective schematic diagram of the overall structure of the shunt connector in the present invention;

[0038] Figure 23 Schematic diagram of the overall structure of the detection component in the present invention;

[0039] Figure 24 Schematic diagram of the overall structure of the detection component from another angle in the present invention;

[0040] Figure 25 Schematic diagram of the positional relationship of the scissor structure, second horizontal telescopic member and multi-slot bed body from the bottom view angle in the present invention;

[0041] Figure 26 Schematic diagram of the positional relationship of the conveying control member, conveying pipe, detection component and base frame in the present invention;

[0042] The names of the components corresponding to the marks in the above-mentioned drawings are: 101, base; 102, base frame; 103, water and fertilizer tank; 104, conveying pipe; 105, guide post;

[0043] 2, conveying control member; 201, small pipe; 202, transfer box; 203, shunt block; 204, plug block; 205, first horizontal telescopic member;

[0044] 3, pump;

[0045] 4, multi-slot bed body; 401, breeding tank; 402, horizontal pipe; 403, thin pipe; 404, shunt connector; 405, partition rack;

[0046] 5. Detection component; 501. Non-contact soil humidity sensor; 502. Scissor structure; 503. Second horizontal telescopic member; 504. C-shaped slider; 505. Slide rail;

[0047] 601. Vertical motor; 602. Ball screw;

[0048] 7. Support rod. Detailed implementation manners

[0049] The following further describes in detail the detailed implementation manners of the present invention in conjunction with the accompanying drawings.

[0050] In the present invention, the orientation words such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", etc. are all based on Figure 2 the Figure 3 direction defined by the cross-shaped orientation mark in

[0051] It should be particularly noted that the top of the telescopic end of the telescopic member refers to the end of the telescopic end far from its fixed end. In the present invention, each orientation word is described based on this definition and does not change the orientation it represents with the change of the angle of the drawing. Vertical means perpendicular to the ground, horizontal means parallel to the ground, a vertical motor means that the output shaft of the motor is perpendicular to the ground, a horizontal motor means that the output shaft of the motor is parallel to the ground, and a horizontal telescopic member means that the telescopic end of the telescopic member is parallel to the ground.

[0052] (1) Seedbed: A place or device for cultivating plant seedlings.

[0053] As Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 shown, a water and fertilizer control device for a special seedbed for potato breeding provided by the present invention includes a movable base 101 and a liftable base frame 102 arranged above the base 101; the base 101 includes a flat plate and four support columns fixedly installed at the bottom of the flat plate, and universal wheels are installed at the bottoms of the support columns; four guide columns 105 are fixedly installed at the bottom of the base frame 102, four limit holes for the four guide columns 105 to slide up and down are opened on the flat plate, a vertical motor 601 is fixedly installed at the bottom of the flat plate, the output shaft of the vertical motor 601 is in transmission connection with a vertically arranged ball screw 602, the ball screw 602 is provided with a lead screw nut matching the ball screw 602, the lead screw nut is fixedly connected with the base frame 102, and holes for the ball screw 602 to pass through are opened on both the flat plate and the base frame 102.

[0054] As Figure 1 , Figure 2 ,Figure 3 , Figure 4 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 As shown in Figure 14 , a water and fertilizer tank 103 for placing water and fertilizer is provided on the base frame 102. The water and fertilizer tank 103 includes a box body and a flip cover hinged to the box body that can be opened unilaterally. The water and fertilizer tank 103 is located on the right side at the top of the bottom plate of the base frame 102. The outflow port of the water and fertilizer tank 103 is connected to the inflow port of the conveying control member 2 through a conveying pipe 104. A pump 3 is provided on the conveying pipe 104. The pump 3 includes a two-way gear pump and a horizontal motor for driving the two-way gear pump. The output shaft of the horizontal motor is in transmission connection with the driving gear of the two-way gear pump. The horizontal motor is installed on the base frame 102; a conveying control member 2 is provided on the base frame 102. The conveying control member 2 includes N outflow holes whose opening and closing states can be independently controlled. N is a positive integer that is a multiple of four. The N outflow holes are respectively detachably communicated with the seedbed through N small pipes 201. The N small pipes 201 are fixedly installed on the base frame 102 through a small pipe fixing frame. The small pipe fixing frame can fix the relative positions of the small pipes 201. The small pipe fixing frame includes N / 4 small pipe arrangers for arranging every four small pipes 201 into a shape corresponding to the positions of the insertion holes on the shunt plug connector 404, so that when inserting, it is not necessary to insert the small pipes 201 one by one, and at least four small pipes 201 can be directly connected at one time; the conveying control member 2 includes a transfer box 202. One end of the conveying pipe 104 away from the water and fertilizer tank 103 is connected to the inflow port of the transfer box 202. A shunt block 203 is provided above the transfer box 202. A through groove is provided in the shunt block 203. The through groove is located at the lower part of the shunt block 203. N first inflow holes are opened at the top of the through groove. The N first inflow holes are respectively communicated with the N outflow holes through vertical passages. N second inflow holes with corresponding positions and shapes to the first inflow holes are opened at the bottom of the through groove. The outflow port of the transfer box 202 is connected to the N second inflow holes of the through groove; N plug blocks 204 for controlling the opening and closing states of the N first inflow holes are provided in the through groove. Through holes are opened on the plug blocks 204. N first horizontal telescopic members 205 for driving the N plug blocks 204 to slide left and right in the through groove are installed on the shunt block 203. The connection and disconnection of the corresponding first inflow holes and second inflow holes can be realized by the left and right sliding of the plug blocks 204. When the central points of the first inflow holes, the through holes, and the outflow holes are on the same vertical line, water can flow from the transfer box 202 through the shunt block 203 into the small pipes 201. When they are not on the same vertical line, water cannot flow into the shunt block 203.

[0055] As Figure 1 , Figure 2 ,Figure 3 , Figure 4 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 As shown in Figure 3 , Figure 4 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 , the seedbed includes a multi-groove bed body 4 and four support rods 7 for supporting the multi-groove bed body 4. A collection box for collecting the liquid leaking from the air-permeable plates at the bottom of the breeding grooves 401 is fixedly installed between the four support rods 7. The multi-groove bed body 4 includes at least one conveying sub-region. Each conveying sub-region includes four breeding grooves 401 arranged in a column of four rows. The area of each breeding groove 401 is about 0.01 square meters. Through holes are opened at the bottoms of the breeding grooves 401, and air-permeable plates are fixedly installed in the through holes. Air-permeable holes are opened at the centers of the air-permeable plates; the air-permeable plates include grid plates and non-woven fabrics wrapped outside the grid plates; a horizontal tube 402 is arranged beside each column of breeding grooves 401. The horizontal tube 402 is installed between the front side wall and the rear side wall of the multi-groove bed body 4. There are four sub-cavities in the horizontal tube 402. Four L-shaped thin tubes 403 for conveying water and fertilizer to the soil in each breeding groove 401 are installed on the horizontal tube 402. The four thin tubes 403 are respectively communicated with the four sub-cavities. The ends of the thin tubes 403 away from the horizontal tube 402 are inserted into the soil; a shunt adapter 404 for detachably plugging the ends of four small tubes 201 away from the outflow holes is fixedly installed at the rear end of the horizontal tube 402. The shunt adapter 404 is fixedly installed through the rear side wall of the multi-groove bed body 4. Every four small tubes 201 are respectively communicated with the four sub-cavities through a shunt adapter 404; a partition frame 405 for dividing the tube cavity of the horizontal tube 402 into four sub-cavities and having the same shape and size as the tube cavity is arranged in the tube cavity of the horizontal tube 402. The partition frame 405 is in a cylindrical structure. Four grooves are opened on the outer wall of the partition frame 405. Four sub-cavities are formed between the four grooves and the inner tube wall of the horizontal tube 402. The length of each groove is determined by the position of the thin tube 403. When the water and fertilizer flow to the end of the length of the groove, it can just flow into the thin tube 403, which can not only avoid the situation of excessive accumulation of water and fertilizer in the sub-cavities resulting in stench and corrosion, but also reduce the travel distance of the water and fertilizer. The shunt adapter 404 includes a hollow frustum. Outflow ports corresponding to the positions of the four sub-cavities are opened on the bottom surface of the hollow frustum close to the horizontal tube 402. Four plugging holes for respectively plugging the ends of four small tubes 201 away from the outflow holes are opened on the bottom surface of the hollow frustum away from the horizontal tube 402; the inner cavity of the frustum of the hollow frustum is divided into four sub-paths by a partition plate with a cross-sectional shape of a cross. The corresponding plugging holes and outflow ports are communicated through channels.

[0056] As Figure 1 , Figure 2 ,Figure 3 , Figure 4 , Figure 23 , Figure 24 , Figure 25 , Figure 26 As shown, above the base frame 102, there is also provided a detection assembly 5 that can detect the humidity of the soil in each breeding tank 401 in at least one conveying sub-region and can extend and retract back and forth. The detection assembly 5 is located below the multi-tank bed body 4. The detection assembly 5 includes N non-contact soil humidity sensors 501 for respectively detecting the humidity of the soil in four breeding tanks 401 in at least one conveying sub-region. When the detection assembly 5 is in the extended state, the positions of the four non-contact soil humidity sensors 501 match the positions of the four breeding tanks 401 in at least one conveying sub-region, and each non-contact soil humidity sensor 501 is respectively located below each breeding tank 401. The detection assembly 5 includes a scissor structure 502 that can extend forward when unfolded and shorten backward when folded, and a second horizontal telescopic member 503 fixedly installed on the base frame 102. The scissor arms of the scissor structure 502 are parallel to the ground, and the hinge shafts are perpendicular to the ground. The N non-contact soil humidity sensors 501 are fixedly installed on the tops of the hinge shafts of the scissor structure 502, and a bell-shaped isolation shell for isolation is also installed on the top of each hinge shaft to minimize the influence of the surrounding environment on the non-contact soil humidity sensors 501. The non-contact soil humidity sensor 501 can be a sensor based on electromagnetic wave technology that estimates the soil moisture content by measuring the propagation frequency of electromagnetic waves in the medium, or a sensor based on near-infrared spectroscopy technology that estimates the moisture content in the soil based on the principle that the absorption of specific infrared wavelengths by water vapor molecules changes with their concentration. When the scissor structure 502 is fully unfolded, the center points of each non-contact soil humidity sensor 501 and each ventilation hole are located on the same vertical line; the scissor structure 502 includes a plurality of rhombus-shaped modules. The bottom of the hinge shaft at the rearmost end in the rhombus-shaped module at the rearmost end of the scissor structure 502 is fixedly connected to the top of the second horizontal telescopic member 503, and the bottom of the hinge shaft at the foremost end in the rhombus-shaped module at the rearmost end of the scissor structure 502 is fixedly connected to the top of the telescopic end of the second horizontal telescopic member 503. The top of the hinge shaft at the foremost end in the rhombus-shaped module at the rearmost end of the scissor structure 502 is fixedly connected to a C-shaped slider 504 that can slide back and forth. A slide rail 505 for the C-shaped slider 504 to slide back and forth is fixedly installed at the bottom of the base frame 102. The slide rail 505 includes a horizontal slide bar for the C-shaped slider 504 to slide back and forth and two supports for supporting the horizontal slide bar. A slide hole for the C-shaped slider 504 to pass through and slide back and forth is opened at the top of the base frame 102.

[0057] The device includes a main controller, and the main controller is respectively connected to the horizontal motor of the pump 3, the vertical motor 601, each first horizontal telescopic member 205, each non-contact soil humidity sensor 501, and the second horizontal telescopic member 503 for control connection.

[0058] The working principle of the present invention will be described below with reference to the device depicted in the respective drawings of the present invention. In the respective drawings of the present invention, N is 8. Therefore, the conveying control member 2 has eight outflow holes and eight first horizontal telescopic members 205; the through groove has eight first inflow holes and eight second inflow holes; the device has eight small pipes 201; the detection assembly 5 has eight non-contact soil moisture sensors 501; the multi-groove bed body 4 has eight conveying sub-areas and eight horizontal pipes 402. To improve efficiency, the two horizontal pipes 402 of every two adjacent conveying sub-areas are located on the same vertical plane, so that every time the device moves, the soil moisture of all breeding troughs 401 in two conveying sub-areas can be detected and water and fertilizer can be conveyed simultaneously. In practice, a multi-groove bed body 4 will be provided with 74 conveying sub-areas and a total of 296 breeding troughs 401. To improve efficiency, the quantity of N will also increase accordingly. The quantity is simplified here only to make the description more concise and clear. The working principle of the present invention is as follows: Open the flip cover of the water and fertilizer tank 103 to fill it with water and fertilizer, move the device through the universal wheels. After the device moves to the side of the seedbed, align the front side of the device with the rear side of the seedbed. If the small pipe 201 and the flow dividing socket 404 on the multi-groove bed body 4 are not at the same height, for example, if the small pipe 201 is lower than the flow dividing socket 404, start the vertical motor 601. The output shaft of the vertical motor 601 drives the ball screw 602 to rotate, and the screw nut moves upward along the ball screw 602, thereby driving the base frame 102 to move upward until the small pipe 201 and the flow dividing socket 404 are at the same height, and then turn off the vertical motor 601. If the small pipe 201 is higher than the flow dividing socket 404, control the output shaft of the vertical motor 601 to reverse. In this way, the overall height of the device is adjusted to enable it to adapt to seedbeds of different heights.

[0059] After the height of the device is adjusted, push the device forward, insert every four small tubes 201 into a shunt connector 404, and complete the insertion of eight small tubes 201. Since each small tube 201 is fixedly installed on the base frame 102 through a small tube fixing bracket, its position is fixed and unchanged. The position of the shunt connector 404 is also fixed and unchanged. Therefore, after the insertion is completed, start the second horizontal telescopic member 503 to make the telescopic end of the second horizontal telescopic member 503 extend. When the telescopic end of the second horizontal telescopic member 503 extends, it drives the hinge shaft at the frontmost position in the rhombus module at the rearmost end of the scissor structure 502 to move forward, thereby driving the entire scissor structure 502 to gradually unfold. When the telescopic end of the second horizontal telescopic member 503 extends to the maximum value, the scissor structure 502 is fully unfolded. The eight non-contact soil moisture sensors 501 on the scissor structure 502 are respectively located on the same vertical line as the center points of the respective ventilation holes, and can respectively detect the soil moisture of each breeding tank 401. After the detection is completed, the humidity data collected by the eight non-contact soil moisture sensors 501 will be sent to the main controller. While the scissor structure 502 is gradually unfolding, the C-shaped slider 504 will also slide forward from the rear on the slide rail 505, which plays a role in limiting the movement direction of the hinge shaft at the frontmost position in the rhombus module at the rearmost end of the scissor structure 502, so that it only moves in the front-rear direction.

[0060] Start the pump 3 to pump out the water and fertilizer in the water and fertilizer tank 103 and input it into the transfer box 202 through the delivery pipe 104. The main controller will control the expansion and contraction of the first horizontal telescopic member 205 according to the soil humidity data. For example, if only one of the eight breeding tanks 401 in the two delivery sub-areas has insufficient humidity and needs to be supplied with water and fertilizer, the main controller will control the first horizontal telescopic member 205 corresponding to the outflow hole connected to the thin tube 403 in the breeding tank 401 with insufficient humidity, so that the telescopic end of the first horizontal telescopic member 205 shortens, driving the plug 204 to slide in the through groove, so that the flow hole of the plug 204 and the center points of the first inflow hole and the second inflow hole at this position are all located on the same vertical line. At this time, the water and fertilizer in the transfer box 202 flows from its outflow port into the shunt block 203 through the first inflow hole, and then successively passes through the flow hole of the plug 204, the second inflow hole, the outflow hole, the small tube 201, the insertion hole connected to the small tube 201 of the shunt connector 404, the sub-path of the shunt connector 404, the sub-cavity of the horizontal tube 402, and the thin tube 403 in the breeding tank 401 with insufficient humidity, and finally is delivered to the soil in the breeding tank 401 with insufficient humidity. In this way, the water and fertilizer delivery to the breeding tank 401 with insufficient humidity is completed. When the non-contact soil moisture sensor 501 detects that the humidity of the breeding tank 401 reaches the predetermined value, the main controller controls the telescopic end of the first horizontal telescopic member 205 to extend and the pump 3 to close, so that the plug 204 blocks the first inflow hole and the second inflow hole, and no longer continues to supply water and fertilizer to the soil.

[0061] After the conveying is completed, disconnect the small tube 201 from the shunt connector 404. As shown in Figure 1 , Figure 2 , Figure 3 , push the device to the left, insert the small tube 201 into the shunt connectors 404 of the next two conveying sub-areas, and then repeat the above process. After completing the detection of these two conveying sub-areas, continue to move until all the breeding tanks 401 in the entire multi-trough bed body 4 are detected.

[0062] Control the telescopic end of the second horizontal telescopic member 503 to shorten, drive the hinge shaft at the frontmost position in the rhombus-shaped module at the rearmost end of the scissor structure 502 to move backward, thereby driving the entire scissor structure 502 to gradually fold until it is completely folded. After storing the device, wait for the next use.

[0063] It should be noted that the present invention is not limited to the specific structures shown in the drawings in the above embodiments, and various changes can be made within the knowledge scope of those of ordinary skill in the art.

Claims

1. A water and fertilizer control device for a special seedbed for potato breeding, characterized in that It includes a movable base (101) and a liftable base frame (102) arranged above the base (101); A water and fertilizer tank (103) for placing water and fertilizer is arranged on the base frame (102); A conveying control member (2) is arranged on the base frame (102). The conveying control member (2) includes N outflow holes whose opening and closing states can be independently controlled. N is a positive integer that is a multiple of four. The N outflow holes are respectively detachably communicated with the seedbed through N small pipes (201). The water and fertilizer tank (103) is communicated with the conveying control member (2) through a conveying pipe (104), and a pump (3) is arranged on the conveying pipe (104); The seedbed includes a multi-groove bed body (4). The multi-groove bed body (4) includes at least one conveying sub-region. Each conveying sub-region includes four breeding grooves (401) arranged in a row of four columns. A horizontal pipe (402) is arranged beside each column of the breeding grooves (401). The horizontal pipe (402) has four sub-cavities. Four thin pipes (403) for respectively conveying water and fertilizer to the soil in each breeding groove (401) are installed on the horizontal pipe (402). The four thin pipes (403) are respectively communicated with the four sub-cavities. The ends of the four thin pipes (403) far from the horizontal pipe (402) are inserted into the soil. A shunt adapter (404) for detachably plugging the ends of the four small pipes (201) far from the outflow holes is fixedly installed at the rear end of the horizontal pipe (402). Every four small pipes (201) are respectively communicated with the four sub-cavities through one shunt adapter (404); Through holes are formed at the bottoms of the breeding grooves (401), and air-permeable plates are fixedly installed in the through holes; Above the base frame (102), a detection component (5) that can detect the humidity of the soil in each breeding groove (401) in at least one conveying sub-region and can stretch back and forth is further arranged. The detection component (5) includes N non-contact soil humidity sensors (501) for respectively detecting the humidity of the soil in the four breeding grooves (401) in at least one conveying sub-region. The detection component (5) includes a scissor structure (502) that can extend forward when unfolded and shorten backward when folded and a second horizontal telescopic member (503) fixedly installed on the base frame (102). The N non-contact soil humidity sensors (501) are fixedly installed on the scissor structure (502).

2. The water and fertilizer control device for a special seedbed for potato breeding according to claim 1, wherein, The base (101) includes a flat plate and four support columns fixedly installed at the bottom of the flat plate. Universal wheels are installed at the bottoms of the support columns; Four guiding columns (105) are fixedly installed at the bottom of the base frame (102). Four limiting holes for the up-and-down sliding of the four guiding columns (105) are formed in the flat plate. A vertical motor (601) is fixedly installed at the bottom of the flat plate. The output shaft of the vertical motor (601) is in transmission connection with a vertically arranged ball screw (602). A lead screw nut matching the ball screw (602) is arranged on the ball screw (602). The lead screw nut is fixedly connected with the base frame (102). Holes for the ball screw (602) to pass through are formed in both the flat plate and the base frame (102).

3. The water and fertilizer control device for a special seedbed for potato breeding according to claim 1, characterized in that The conveying control member (2) includes a transfer box (202). One end of the conveying pipe (104) far from the water and fertilizer tank (103) is connected to the inflow port of the transfer box (202). A flow dividing block (203) is arranged above the transfer box (202). A through groove is formed in the flow dividing block (203). N first inflow holes are formed at the top of the through groove. The N first inflow holes are respectively communicated with the N outflow holes through vertical passages. N second inflow holes with positions and shapes corresponding to the first inflow holes are formed at the bottom of the through groove. The outflow port of the transfer box (202) is communicated with the N second inflow holes of the through groove. N blocking blocks (204) for controlling the opening and closing states of the N first inflow holes are arranged in the through groove. Flow through holes are formed in the blocking blocks (204). N first horizontal telescopic members (205) for driving the N blocking blocks (204) to slide left and right in the through groove are installed on the flow dividing block (203).

4. The water and fertilizer control device for a special seedbed for potato breeding according to any one of claims 1 to 3, characterized in that, A partition frame (405) matching the shape and size of the lumen of the horizontal pipe (402) is arranged in the lumen of the horizontal pipe (402). The partition frame (405) is in a cylindrical structure. Four grooves are formed on the outer wall of the partition frame (405). Four sub-cavities are formed between the four grooves and the inner pipe wall of the horizontal pipe (402).

5. The water and fertilizer control device for a special seedbed for potato breeding according to any one of claims 1 to 3, characterized in that, The flow dividing plug joint (404) includes a hollow frustum. Outflow ports corresponding to the positions of the four sub-cavities are formed on the bottom surface of the hollow frustum close to the horizontal pipe (402). Four plug holes for respectively plugging one ends of the four small pipes (201) far from the outflow holes are formed on the bottom surface of the hollow frustum far from the horizontal pipe (402). The inner cavity of the frustum of the hollow frustum is divided into four sub-passages by a partition plate with a cross section in the shape of a cross.

6. The water and fertilizer control device for a special seedbed for potato breeding according to any one of claims 1 to 3, characterized in that, The scissor structure (502) includes a plurality of rhombus-shaped modules. The hinge shaft at the rearmost end in the rhombus-shaped module at the rearmost end of the scissor structure (502) is fixedly connected with the second horizontal telescopic member (503). The bottom of the hinge shaft at the foremost end in the rhombus-shaped module at the rearmost end of the scissor structure (502) is fixedly connected with the top end of the telescopic end of the second horizontal telescopic member (503).

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