Water and fertilizer control device of seedbed special for potato breeding

Abstract

The invention relates to the field of equipment for directly conveying liquid into soil, in particular to a water and fertilizer control device for a seedbed special for potato breeding, which comprises a movable base, a liftable base frame and a conveying control member, the conveying control member comprises N outflow holes, the opening and closing states of which can be independently controlled, the N outflow holes are detachably communicated with the seedbed through N small pipes respectively; the multi-groove bed body comprises a plurality of breeding grooves, and a detection assembly which can detect the humidity of soil in each breeding groove in at least one conveying sub-area and can stretch out and draw back is further arranged above the base frame; the detection assembly comprises N non-contact soil humidity sensors used for detecting the humidity of soil in the four breeding grooves in at least one conveying sub-area. An existing water and fertilizer control device of a seedbed special for potato breeding has the problem that water and fertilizer cannot be conveyed to each potato seed in a targeted mode, and the device can convey water and fertilizer to each potato seed in a targeted mode.

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] In order to solve the above technical problems, the present invention provides a water and fertilizer control device for a special seedling bed for potato breeding, comprising a movable base and a base frame that can be raised and lowered and is arranged above the base; a water and fertilizer box for placing water and fertilizer is arranged on the base frame; a conveying control component is arranged on the base frame, and the conveying control component comprises 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 detachably connected to the seedling bed through N small tubes respectively; the water and fertilizer box is connected to the conveying control component through a conveying pipe, and a pump is arranged on the conveying pipe; the seedling bed comprises a multi-trough bed body, the multi-trough bed body comprises at least one conveying sub-area, each conveying sub-area comprises four breeding troughs arranged in a row and four rows, and a horizontal pipe is arranged next to each row of breeding troughs, and the horizontal pipe has four sub-spaces The horizontal tube is provided with four thin tubes for conveying water and fertilizer to the soil in each breeding trough, the four thin tubes are respectively connected with the four sub-cavities, and the ends of the thin tubes away from the horizontal tube are inserted into the soil; a shunt plug connector for detachably plugging in the ends of four small tubes away from the outflow hole is fixedly installed at the rear end of the horizontal tube, and each of the four small tubes is respectively connected with the four sub-cavities through a shunt plug connector; the bottom of the breeding trough is provided with a through hole, and a breathable plate is fixedly installed in the through hole; a detection component capable of detecting the moisture of the soil in each breeding trough in at least one conveying sub-area and being able to extend and retract forward and backward is also provided above the base frame, and the detection component comprises N non-contact soil moisture sensors for respectively detecting the moisture 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 supporting columns fixedly installed on the bottom of the flat plate, and universal wheels are installed at the bottom of the supporting columns; four guide columns are fixedly installed on the bottom of the frame, and four limit holes are opened on the flat plate for the four guide columns to slide up and down respectively; a vertical motor is fixedly installed on the bottom of the flat plate, and the output shaft of the vertical motor is transmission-connected to a vertically arranged ball screw, the ball screw is provided with a screw nut matching the ball screw, and the screw nut is fixedly connected to the frame, and holes for the ball screw to pass through are opened on the flat plate and the frame.

[0009] As a further improvement of the present invention: the conveying control component includes a transfer box, one end of the conveying pipe away from the water-fertilizer tank is connected to the inlet of the transfer box, a diverter block is arranged above the transfer box, a through slot is arranged in the diverter block, N first inlet holes are opened at the top of the through slot, the N first inlet holes are connected with the N outlet holes through vertical passages respectively, N second inlet holes whose positions and shapes correspond to the first inlet holes are opened at the bottom of the through slot, the outlet of the transfer box is connected with the N second inlet holes of the through slot; N blocking blocks are arranged in the through slot, which are respectively used to control the opening and closing states of the N first inlet holes, the blocking blocks are provided with overflow holes, and N first horizontal telescopic parts are installed on the diverter block, which are respectively used to drive the N blocking blocks to slide left and right in the through slot.

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

[0011] As a further improvement of the present invention: the diversion plug connector includes a hollow cone, and the bottom surface of the hollow cone close to the horizontal tube is provided with outlets corresponding to the positions of the four sub-cavities, and the bottom surface of the hollow cone away from the horizontal tube is provided with four plugging holes for respectively plugging in one end of four small tubes away from the outlet holes; the inner cavity of the hollow cone 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 component includes a scissor-shaped structure that can extend forward when unfolded and shorten backward when folded, and a second horizontal telescopic member fixedly mounted on a base frame, and N non-contact soil moisture sensors are fixedly mounted on the scissor-shaped structure; the scissor-shaped structure includes a plurality of diamond-shaped modules, a hinge shaft located at the rearmost end of the diamond-shaped module at the rearmost end of the scissor-shaped structure is fixedly connected to the second horizontal telescopic member, and a bottom portion of a hinge shaft located at the frontmost end of the diamond-shaped module at the rearmost end of the scissor-shaped structure is fixedly connected to the top end of the telescopic end of the second horizontal telescopic member.

[0013] The beneficial effects of the present invention are as follows: the water and fertilizer control device for a special seedling bed for potato breeding provided by the present invention can deliver water and fertilizer to each potato seed in a targeted manner.

[0014] The seedbed of the device has multiple separate breeding troughs, and the conveying control component includes N non-contact soil moisture sensors for respectively detecting the moisture of the soil in four breeding troughs in at least one conveying sub-area. The humidity of each breeding trough is measured by extending the detection component forward so that the non-contact soil moisture sensor is aligned with each breeding trough, and then the opening and closing states of the N outflow holes are controlled respectively according to the humidity of each breeding trough. If the humidity of the breeding trough is insufficient, the corresponding outflow holes are opened, and the water and fertilizer in the water and fertilizer box are pumped out by a pump. Because the N outflow holes are connected to the four sub-cavities of the horizontal tube through N small tubes respectively, and each sub-cavity conveys the water and fertilizer to the soil through a thin tube inserted into the soil, the water and fertilizer will flow through the opened outflow holes, the small tube, the diversion plug, and the sub-cavity, and then flow into the thin tube, and the water and fertilizer will be conveyed into the breeding trough with insufficient humidity. In this way, the refined management of the targeted delivery of 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] At the same time, because the base frame of the device can be raised and lowered, the height of the device can be changed to adapt to seedling beds of different sizes. In addition, the base can be moved so that the device can be connected to multiple seedling beds. Therefore, the device can not only achieve refined management, but also has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0019] Figure 4 A schematic diagram of the overall structure of the device and the diverter plug connector provided by the present invention;

[0020] Figure 5 It is a schematic diagram of the overall structure of the base frame in the present invention;

[0021] Figure 6 It is a perspective schematic diagram of the overall structure of the base frame in the present invention;

[0022] Figure 7 It is an assembly diagram of the base frame, vertical motor, ball screw and guide column in the present invention;

[0023] Figure 8 It is an assembly diagram of the water fertilizer tank, the delivery pipe, the delivery control member and the slide rail in the present invention;

[0024] Fig. 9 It is a partial structural schematic diagram of the conveying control component in the present invention;

[0025] Fig.10 It is a perspective schematic diagram of the overall structure of the small and medium-sized pipe support of the present invention;

[0026] Fig.11 It is a perspective schematic diagram of the overall structure of the transfer box in the present invention;

[0027] Fig.12 It is a perspective schematic diagram of the overall structure of the diverter block in the present invention;

[0028] Fig.13 It is a schematic diagram of the positional relationship between the first horizontal telescopic member and the blocking block in the present invention;

[0029] Fig.14 It is a schematic diagram of the positional relationship between the first horizontal telescopic member and the diverter block in the present invention;

[0030] Fig.15It is a schematic diagram of the overall structure of the multi-slot bed in the present invention;

[0031] Fig.16 It is a perspective schematic diagram of the overall structure of the air-permeable plate in the present invention;

[0032] Fig.17 It is a schematic diagram of the overall structure of the multi-slot bed, horizontal tubes, capillary tubes and flow splitter plug connector in the present invention;

[0033] Fig.18 It is a schematic diagram of the overall structure of the horizontal tube, the capillary tube and the flow splitter plug connector in the present invention;

[0034] Fig.19 It is a schematic diagram of the overall structure of the partition frame in the present invention;

[0035] Fig. 20 It is a schematic diagram of the overall structure of the partition frame in the present invention from another angle;

[0036] Fig.21 It is a perspective schematic diagram of the overall structure of the horizontal tube, the capillary tube and the partition frame in the present invention;

[0037] Fig. 22 It is a perspective schematic diagram of the overall structure of the diverter plug connector in the present invention;

[0038] Fig.23 It is a schematic diagram of the overall structure of the detection component in the present invention;

[0039] Fig.24 It is a schematic diagram of the overall structure of the detection component in the present invention from another angle;

[0040] Fig.25 It is a schematic diagram of the positional relationship of the scissor structure, the second horizontal telescopic member and the multi-slot bed body in the present invention when viewed from the upward angle;

[0041] Fig.26 It is a schematic diagram of the positional relationship among the conveying control member, the conveying pipe, the detection assembly and the base frame in the present invention;

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

[0043] 2. Conveying control part; 201. Small tube; 202. Transfer box; 203. Diverter block; 204. Blocking block; 205. First horizontal telescopic part;

[0044] 3. Pump;

[0045] 4. Multi-tank bed; 401. breeding tank; 402. horizontal tube; 403. capillary tube; 404. splitter plug; 405. partition frame;

[0046] 5. Detection component; 501. Non-contact soil moisture 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 DESCRIPTION

[0049] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0050] The directional words such as "up", "down", "left", "right", "front", "back", "top", "bottom" and so on described in the present invention are all represented by Figure 2 and Figure 3 The direction defined by the cross-shaped orientation mark is used as a reference. It should be noted that the top of the telescopic end of the telescopic part refers to the end of the telescopic end away from its fixed end. All orientation words in the present invention are described based on this definition and do not change the orientation they represent as the angle of the figure changes. Vertical refers to perpendicular to the ground, horizontal refers to 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 part means that the telescopic end of the telescopic part is parallel to the ground.

[0051] Definitions of relevant terms involved in this invention:

[0052] (1) Seedbed: A place or device used to grow plant seedlings.

[0053] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 As shown, a water and fertilizer control device for a special seedling bed 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 the bottoms of the support columns are all equipped with universal wheels; four guide columns 105 are fixedly installed at the bottom of the base frame 102, and the flat plate is provided with four limit holes for the four guide columns 105 to slide up and down respectively, and a vertical motor 601 is fixedly installed at the bottom of the flat plate, and the output shaft of the vertical motor 601 is transmission-connected with a vertically arranged ball screw 602, and the ball screw 602 is provided with a screw nut matching the ball screw 602, and the screw nut is fixedly connected to the base frame 102, and the flat plate and the base frame 102 are both provided with holes for the ball screw 602 to pass through.

[0054] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 As shown, a water and fertilizer tank 103 for placing water and fertilizer is arranged on the base frame 102, and the water and fertilizer tank 103 includes a box body and a flip cover hinged to the box body and capable of being opened on one side, and the water and fertilizer tank 103 is located on the right side of the top of the bottom plate of the base frame 102, and the outlet of the water and fertilizer tank 103 is connected to the inlet of the conveying control member 2 through a conveying pipe 104, and a pump 3 is arranged on the conveying pipe 104, and the pump 3 includes a bidirectional gear pump and a horizontal motor for driving the bidirectional gear pump, and the output shaft of the horizontal motor is connected to the driving gear of the bidirectional gear pump. The motor is mounted on the base frame 102; a conveying control member 2 is provided on the base frame 102, and the conveying control member 2 includes N outlet holes whose opening and closing states can be independently controlled, N is a positive integer that is a multiple of four, and the N outlet holes are detachably connected to the seedbed through N small tubes 201, respectively, and the N small tubes 201 are fixedly mounted on the base frame 102 through a small tube fixing frame, and the small tube fixing frame can fix the relative position of the small tubes 201, and the small tube fixing frame includes N / 4 small tubes 201 for arranging each four small tubes 201 into a split plug The position of the plug hole on the head 404 corresponds to the shape of the small tube arranger, so that when plugging in, there is no need to plug in the small tubes 201 one by one, and at least four small tubes 201 can be directly connected by plugging in once; the conveying control part 2 includes a transfer box 202, and the end of the conveying pipe 104 away from the water fertilizer tank 103 is connected to the inlet of the transfer box 202, and a diverter block 203 is arranged above the transfer box 202, and a through groove is arranged in the diverter block 203, and the through groove is located at the lower part of the diverter block 203, and the top of the through groove is provided with N first inlet The N first inlet holes are connected to the N outlet holes through vertical passages, and the bottom of the through slot is provided with N second inlet holes whose positions and shapes correspond to the first inlet holes. The outlet of the transfer box 202 is connected to the N second inlet holes of the through slot; the through slot is provided with N blocking blocks 204 for controlling the opening and closing states of the N first inlet holes, and the blocking blocks 204 are provided with flow holes, and the diverter block 203 is provided with N first horizontal telescopic parts 205 for driving the N blocking blocks 204 to slide left and right in the through slot. The left and right sliding of the blocking blocks 204 can realize the connection and disconnection of the corresponding first inlet holes and the second inlet holes. When the center points of the first inlet holes, the flow holes and the outlet holes are located on the same vertical line, water can flow from the transfer box 202 through the diverter block 203 into the small tube 201, and when they are not located on the same vertical line, water cannot flow into the diverter block 203.

[0055] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Fig.15 , Fig.16 , Fig.17 , Fig.18 , Fig.19 , Fig. 20 , Fig.21 , Fig. 22 As shown, the seedbed includes a multi-slot bed body 4 and four support rods 7 for supporting the multi-slot bed body 4. A collecting box for collecting liquid leaked from the air permeable plate at the bottom of the breeding trough 401 is fixedly installed between the four support rods 7. The multi-slot bed body 4 includes at least one conveying sub-area, each of which includes four breeding troughs 401 arranged in a row and four rows. The area of ​​each breeding trough 401 is about 0.01 square meters. The bottom of the breeding trough 401 is provided with a through hole, and a through hole is fixedly installed in the through hole. An air plate is provided with an air hole at the center of the air plate; the air plate includes a grid plate and a non-woven fabric wrapped outside the grid plate; a horizontal pipe 402 is arranged beside each row of breeding troughs 401, and the horizontal pipe 402 is installed between the front side wall and the rear side wall of the multi-trough bed 4, and has four sub-cavities in the horizontal pipe 402, and four L-shaped capillaries 403 are installed on the horizontal pipe 402 for transporting water and fertilizer to the soil in each breeding trough 401, respectively, and the four capillaries 403 are connected to the four sub-cavities respectively. The ends of the pipes 403 away from the horizontal pipes 402 are all inserted into the soil; the rear end of the horizontal pipe 402 is fixedly installed with a shunt plug 404 for detachably plugging in the ends of the four small pipes 201 away from the outflow hole, and the shunt plug 404 is fixedly installed on the rear side wall of the multi-slot bed 4, and each of the four small pipes 201 is connected to the four sub-cavities through a shunt plug 404; the lumen of the horizontal pipe 402 is provided with a plug that matches the shape and size of the lumen for plugging the horizontal pipe 402. 02 is divided into four sub-cavities by a partition frame 405, which is 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 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 accumulation of too much water and fertilizer in the sub-cavity to cause odor and corrosion, but also reduce the flow distance of the water and fertilizer. The diversion plug 404 includes a hollow truncated cone. The bottom surface of the hollow truncated cone close to the horizontal tube 402 is opened with outlets corresponding to the positions of the four sub-cavities. The bottom surface of the hollow truncated cone away from the horizontal tube 402 is opened with four plug-in holes for plugging in the ends of the four small tubes 201 away from the outlet holes; the inner cavity of the hollow truncated cone is divided into four sub-passages by a partition plate with a cross-shaped cross section, and the corresponding plug-in holes are connected to the outlet through a channel.

[0056] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Fig.23 , Fig.24 , Fig.25 , Fig.26 As shown, a detection assembly 5 capable of detecting the moisture of the soil in each breeding trough 401 in at least one conveying sub-area and capable of stretching forward and backward is also arranged above the base frame 102. The detection assembly 5 is located below the multi-trough bed 4. The detection assembly 5 includes N non-contact soil moisture sensors 501 for respectively detecting the moisture of the soil in four breeding troughs 401 in at least one conveying sub-area. When the detection assembly 5 is in an extended state, the positions of the four non-contact soil moisture sensors 501 match the positions of the four breeding troughs 401 in at least one conveying sub-area, and each non-contact soil moisture sensor 501 is respectively located below each breeding trough 401. The detection assembly 5 includes a scissor structure 502 capable of stretching forward when unfolded and shortening backward when folded, and a second horizontal telescopic member 503 fixedly mounted on the base frame 102. The scissor arms of the scissor structure 502 are parallel to the ground, and the hinge axis is perpendicular to the ground. N non-contact soil moisture sensors 501 are fixedly mounted on the top of the hinge shaft of the scissor structure 502. A bell-shaped isolation shell is also installed on the top of each hinge shaft to minimize the impact of the surrounding environment on the non-contact soil moisture sensor 501. The non-contact soil moisture sensor 501 can be a sensor based on electromagnetic wave technology that estimates soil moisture by measuring the propagation frequency of electromagnetic waves in the medium, or a sensor based on near-infrared spectroscopy technology that estimates soil moisture based on the principle that the absorption of water vapor molecules to specific infrared wavelengths varies with their concentration. When the scissor structure 502 is fully unfolded, each non-contact soil moisture sensor 501 is located on the same vertical line as the center point of each air hole; the scissor structure 502 includes a plurality of rhombus-shaped modules, the bottom of the hinge shaft at the rear end of the rhombus-shaped module at the rear 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 front end of the rhombus-shaped module at the rear 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 front end of the diamond-shaped module at the rear end of the scissors-type 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 sliding hole is opened at the top of the base frame 102 for the C-shaped slider 504 to pass through and slide back and forth.

[0057] The device comprises a main controller, which 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 moisture sensor 501 and the second horizontal telescopic member 503.

[0058] The working principle of the present invention is now explained by the device drawn in the various figures shown in the present invention. In the various figures shown in the present invention, N is 8, so 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 tubes 201; the detection component 5 has eight non-contact soil moisture sensors 501; the multi-trough bed 4 has eight conveying sub-areas and eight horizontal tubes 402. To improve efficiency, the two horizontal tubes 402 in every two adjacent conveying sub-areas are located on the same vertical plane, so that each time the device moves, it can simultaneously detect the soil moisture of all breeding troughs 401 in the two conveying sub-areas and transport water and fertilizer. In practice, a multi-trough bed 4 will be provided with 74 conveying sub-areas and a total of 296 breeding troughs 401. To improve efficiency, the number of N will also increase accordingly. The simplified number here is 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 box 103 to fill it with water and fertilizer, and move it through the universal wheel. After the device is moved to the side of the seedbed, the front side of the device is aligned with the rear side of the seedbed. If the small tube 201 and the diverter plug 404 on the multi-slot bed body 4 are not at the same height, such as the small tube 201 is lower than the diverter plug 404, the vertical motor 601 is started, 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 to drive the base frame 102 to move upward until the small tube 201 and the diverter plug 404 are at the same height, and the vertical motor 601 is turned off. If the small tube 201 is higher than the diverter plug 404, the output shaft of the vertical motor 601 is controlled to reverse. In this way, the overall height of the device is adjusted so that it can adapt to seedbeds of different heights.

[0059] After the height adjustment of the device is completed, the device is pushed forward to insert every four small tubes 201 into a diverter plug joint 404 to complete the plugging of the eight small tubes 201. Since each small tube 201 is fixedly mounted on the base frame 102 by a small tube fixing frame, its position is fixed, and the position of the diverter plug joint 404 is also fixed. Therefore, after the plugging is completed, the second horizontal telescopic member 503 is started to extend the telescopic end of the second horizontal telescopic member 503. When the telescopic end of the second horizontal telescopic member 503 is extended, the hinge shaft at the front end of the diamond-shaped module at the rear end of the scissor structure 502 is driven to move forward, thereby driving the entire scissor structure 502 to gradually unfold, and wait for the second horizontal telescopic member 503 to extend. When the telescopic end of the second horizontal telescopic member 503 is extended to the maximum value, the scissor structure 502 is fully unfolded, and the eight non-contact soil moisture sensors 501 on the scissor structure 502 are respectively located on the same vertical line as the center point of each air vent, and can respectively detect the soil moisture of each breeding trough 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 unfolded, the C-shaped slider 504 will also slide from back to front on the slide rail 505, which will limit the movement direction of the hinge shaft at the front end of the diamond-shaped module at the rear end of the scissor structure 502, so that it will only move in the front and rear directions.

[0060] Start the pump 3 to extract 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 extension and retraction of the first horizontal telescopic member 205 according to the soil moisture data. For example, only one breeding tank 401 among the eight breeding tanks 401 in the two delivery sub-areas has insufficient humidity and needs to transport water and fertilizer. Then the main controller will control the first horizontal telescopic member 205 corresponding to the outflow hole connected to the capillary 403 in the breeding tank 401 with insufficient humidity, so that the telescopic end of the first horizontal telescopic member 205 is shortened, driving the blocking block 204 to slide in the through groove, so that the flow hole of the blocking block 204 and the center points of the first inlet hole and the second inlet hole at this position are all located on the same vertical line. At this time, the water and fertilizer in the transfer box 202 are transported from its outlet through the first The water flows into the diverter block 203 through an inlet hole, and then passes through the flow hole of the block 204, the second inlet hole, the outlet hole, the small tube 201, the plug hole of the diverter plug 404 connected to the small tube 201, the sub-passage of the diverter plug 404, the sub-cavity of the horizontal tube 402, and the thin tube 403 in the breeding trough 401 with insufficient humidity, and is finally transported to the soil of the breeding trough 401 with insufficient humidity. In this way, the water and fertilizer transportation to the breeding trough 401 with insufficient humidity is completed. When the non-contact soil moisture sensor 501 detects that the humidity of the breeding trough 401 reaches a 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 block 204 blocks the first inlet hole and the second inlet hole, and no longer continues to transport water and fertilizer to the soil.

[0061] After the delivery is completed, the small tube 201 is unplugged from the diversion plug 404. Figure 1 , Figure 2 , Figure 3 As shown, the device is pushed to the left, and the small tube 201 is connected to the diversion connector 404 of the next two conveying sub-areas, and then the above process is repeated. After completing the inspection of these two conveying sub-areas, the device continues to move until all the breeding tanks 401 in the entire multi-tank bed 4 are inspected.

[0062] The telescopic end of the second horizontal telescopic member 503 is controlled to shorten, driving the hinge located at the front end of the diamond-shaped module at the rear end of the scissors-fork structure 502 to move backward, thereby driving the entire scissors-fork structure 502 to gradually fold until it is completely folded, and the device is stored for 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-mentioned embodiments, and various changes can be made thereto within the knowledge scope of ordinary technicians in this field.

Claims

1. A water and fertilizer control device for a special seedling bed for potato breeding, characterized in that: It comprises a movable base (101) and a basal frame (102) arranged above the base (101) and capable of being raised and lowered; The base frame (102) is provided with a water and fertilizer box (103) for storing water and fertilizer; The base frame (102) is provided with a conveying control member (2), the conveying control member (2) comprising N outlet holes whose opening and closing states can be independently controlled, wherein N is a positive integer that is a multiple of four, and the N outlet holes are detachably connected to the seedling bed through N small tubes (201); the water and fertilizer tank (103) is connected to the conveying control member (2) through a conveying pipe (104), and a pump (3) is provided on the conveying pipe (104); The seedbed comprises a multi-trough bed body (4), the multi-trough bed body (4) comprises at least one conveying sub-area, each of the conveying sub-areas comprises four breeding troughs (401) arranged in a row and four rows, a horizontal pipe (402) is arranged beside each row of the breeding troughs (401), the horizontal pipe (402) has four sub-cavities, and four thin pipes (403) are installed on the horizontal pipe (402) for conveying water and fertilizer to the soil in each of the breeding troughs (401). , the four thin tubes (403) are respectively connected to the four sub-cavities, and the ends of the thin tubes (403) away from the horizontal tube (402) are inserted into the soil; a flow splitter plug connector (404) for detachably plugging the ends of the four small tubes (201) away from the outflow hole is fixedly installed at the rear end of the horizontal tube (402), and each of the four small tubes (201) is respectively connected to the four sub-cavities through one of the flow splitter plug connectors (404); The bottom of the breeding tank (401) is provided with a through hole, and a ventilating plate is fixedly installed in the through hole; A detection component (5) capable of detecting the moisture of the soil in each of the breeding troughs (401) in at least one of the conveying sub-areas and capable of being extended forward and backward is also provided above the base frame (102). The detection component (5) comprises N non-contact soil moisture sensors (501) for respectively detecting the moisture of the soil in the four breeding troughs (401) in at least one of the conveying sub-areas.

2. The water and fertilizer control device for a potato breeding seedling bed according to claim 1, characterized in that: The base (101) comprises a flat plate and four support columns fixedly mounted on the bottom of the flat plate, and the bottoms of the support columns are all equipped with universal wheels; Four guide columns (105) are fixedly installed at the bottom of the base frame (102), and four limit holes are opened on the flat plate for the four guide columns (105) to slide up and down respectively. A vertical motor (601) is fixedly installed at the bottom of the flat plate, and the output shaft of the vertical motor (601) is transmission-connected with a vertically arranged ball screw (602). The ball screw (602) is provided with a screw nut matching the ball screw (602), and the screw nut is fixedly connected to the base frame (102). Holes for the ball screw (602) to pass through are opened on the flat plate and the base frame (102).

3. The water and fertilizer control device for a potato breeding seedling bed according to claim 1, characterized in that: The conveying control component (2) comprises a transfer box (202), one end of the conveying pipe (104) away from the water-fertilizer tank (103) is connected to the inlet of the transfer box (202), a diverter block (203) is arranged above the transfer box (202), a through slot is arranged in the diverter block (203), the top of the through slot is provided with N first inlet holes, the N first inlet holes are respectively connected to the N outlet holes through vertical passages, the bottom of the through slot is provided with N second inlet holes whose positions and shapes correspond to the first inlet holes, and the outlet of the transfer box (202) is connected to the N second inlet holes of the through slot; The through slot is provided with N blocking blocks (204) for controlling the opening and closing states of the N first inlet holes respectively, and the blocking blocks (204) are provided with flow holes, and the diverter block (203) is provided with N first horizontal telescopic parts (205) for driving the N blocking blocks (204) to slide left and right in the through slot respectively.

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

5. A water and fertilizer control device for a special seedling bed for potato breeding according to any one of claims 1 to 3, characterized in that: The flow splitting plug connector (404) comprises a hollow truncated cone, and a bottom surface of the hollow truncated cone close to the horizontal tube (402) is provided with flow outlets corresponding to the positions of the four sub-cavities, and a bottom surface of the hollow truncated cone away from the horizontal tube (402) is provided with four plugging holes for respectively plugging in one end of the four small tubes (201) away from the flow outlets; The inner cavity of the hollow truncated cone is divided into four sub-passages by a partition plate with a cross-shaped cross section.

6. A water and fertilizer control device for a special seedling bed for potato breeding according to any one of claims 1 to 3, characterized in that: The detection component (5) comprises a scissor-fork structure (502) capable of extending forward when unfolded and shortening backward when folded, and a second horizontal telescopic member (503) fixedly mounted on the base frame (102), and the N non-contact soil moisture sensors (501) are fixedly mounted on the scissor-fork structure (502); The scissor-type structure (502) comprises a plurality of diamond-shaped modules, wherein a hinge shaft located at the rearmost end of the diamond-shaped module at the rearmost end of the scissor-type structure (502) is fixedly connected to the second horizontal telescopic member (503), and a bottom portion of a hinge shaft located at the frontmost end of the diamond-shaped module at the rearmost end of the scissor-type structure (502) is fixedly connected to the top end of the telescopic end of the second horizontal telescopic member (503).

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