CN-121970629-A - Cadmium-reducing rice seedling raising device

CN121970629ACN 121970629 ACN121970629 ACN 121970629ACN-121970629-A

Abstract

The invention belongs to the technical field of rice seedling raising devices, and particularly discloses a cadmium-reducing rice seedling raising device which comprises a seedling raising tray, wherein a plurality of seedling raising grids are uniformly distributed on the inner side of the seedling raising tray, a bottom plate is detachably connected to the bottom of the seedling raising tray, a plurality of water inlets are uniformly formed in the position, opposite to the seedling raising grids, of the bottom plate, and a dredging device comprises a base, an inserting rod and a liquid pressing component, wherein the base is horizontally arranged at the bottom of the bottom plate, and a plurality of supporting components are symmetrically arranged between the edge position of the top of the base and the bottom plate. According to the invention, by arranging the dredging device, when the water inlet of the bottom plate is blocked by the rice root system or the culture medium in the seedling raising plate, a worker can press the seedling raising plate downwards, at the moment, the inserted rod can be accurately inserted into the corresponding water inlet, the blocking object is removed through the physical insertion function, the water and ventilation functions of the water inlet are quickly recovered, the rice root system is always in an aerobic environment, the root rot phenomenon is effectively reduced, and the seedling raising survival rate is improved.

Inventors

WANG FANG
LIU YING
WANG XIAOHUA
CHEN QIANLIN
CHEN KAIRONG
HUANG YINGJIN
CHENG JIANFENG

Assignees

宜春市农业农村局

Dates

Publication Date: 20260505
Application Date: 20260310

Claims (10)

1. The utility model provides a cadmium-reducing rice seedling device which is characterized in that includes: The seedling raising tray (1), a plurality of seedling raising grids (2) are uniformly distributed on the inner side of the seedling raising tray (1); The bottom plate (3) is detachably connected to the bottom of the seedling raising tray (1), and a plurality of water inlet holes (4) are uniformly formed in the position, opposite to the seedling raising grid (2), of the bottom plate (3); the utility model provides a pull throughs, includes base (5), inserted bar (6) and pressure liquid subassembly, base (5) level set up in the bottom of bottom plate (3), and the symmetry is provided with a plurality of supporting components between base (5) top edge position and bottom plate (3), the quantity of inserted bar (6) is a plurality of, inserted bar (6) vertical fixation connect in the top of base (5), and a plurality of inserted bar (6) are just right with a plurality of inlet openings (4) of bottom plate (3) bottom one by one, pressure liquid subassembly set up in seedling tray (2) for in raising seedlings tray (1) when moving down with external clear water is impressed and is educated Miao Ge (2).
2. The cadmium-reducing rice seedling raising device according to claim 1, wherein the supporting component comprises a limiting rod (7), a supporting spring (8), a fixing block (9) and a nut (10), wherein the limiting rod (7) is vertically and fixedly connected to the side face of the base (5), the supporting spring (8) is detachably sleeved on the limiting rod (7), the fixing block (9) is slidably sleeved on the limiting rod (7), the fixing block (9) is located at the top of the supporting spring (8), the fixing block (9) is fixedly connected with the side face of the bottom plate (3), and the nut (10) is in threaded sleeve connection with the top end of the limiting rod (7) and is used for limiting the fixing block (9) on the limiting rod (7).
3. The cadmium-reduced rice seedling raising device according to claim 2, wherein the liquid pressing component comprises a flow guide pipe (11), elastic sheets (12), ejector rods (13) and a sealing mechanism, the flow guide pipe (11) is detachably and vertically inserted on the bottom plate (3), the flow guide pipe (11) is vertically positioned at the central position of the seedling raising grid (2), the elastic sheets (12) are uniformly and annularly distributed at the top ends of the flow guide pipe (11), the bottom ends of the elastic sheets (12) are fixedly connected with the top ends of the flow guide pipe (11), the top ends of the elastic sheets (12) are fixedly connected together, the middle parts of the elastic sheets (12) protrude towards the axis direction far away from the flow guide pipe (11), the edges of the two adjacent elastic sheets (12) are attached together, the ejector rods (13) are vertically positioned at the bottom of the flow guide pipe (11), the ejector rods (13) are vertically and fixedly connected with the top parts of the base (5), and the sealing mechanism is connected with the top ends of the ejector rods (13) and is used for moving upwards to the outside when the flow guide pipe (1) moves upwards.
4. The cadmium-reducing rice seedling raising device according to claim 3, wherein the sealing mechanism comprises a movable rod (14), a rubber plug (15) and a sealing gasket (16), the movable rod (14) is vertically and slidably inserted into the top end of the ejector rod (13), the movable rod (14) is of a hollow design, buoyancy generated by the movable rod (14) is larger than the sum of the gravity of the movable rod (14) and the rubber plug (15), the rubber plug (15) is horizontally and fixedly connected to the top end of the movable rod (14), the diameter of the rubber plug (15) is matched with the inner diameter of the guide pipe (11), a plurality of pressure relief holes (17) are formed in the positions, close to the edges, of the tops of the rubber plug (15) and the sealing gasket (16), of the sealing gasket (17) are kept dislocated, the sealing gasket (16) is fixedly sleeved on the top end of the ejector rod (13), and the diameter of the sealing gasket (16) is identical with the diameter of the rubber plug (15).
5. The cadmium-reduced rice seedling raising device according to claim 4, wherein the base (5) is of a hollow design, a plurality of through holes (18) are uniformly formed in the top of the base (5), pressing components are symmetrically arranged on two sides of the base (5), each pressing component comprises a mounting plate (19), an air bag (20), a connecting pipe (21), an air inlet mechanism and a pressing mechanism, the mounting plates (19) are horizontally and fixedly connected to the side surfaces of the base (5), the air bags (20) are fixedly connected to the top of the mounting plates (19), the air bags (20) can stretch out and draw back, the connecting pipes (21) are multiple, the connecting pipes (21) are connected between the air bags (20) and the inner cavities of the base (5), a first one-way valve (22) is arranged on the connecting pipe (21), and only air is allowed to enter the cavities of the base (5) through the air bags (20), the air inlet mechanism is connected to the air bags (20) and used for introducing outside air into the air bags (20), and the pressing mechanism is connected to the bottom plate (3) when the bottom plate (3) is pressed downwards.
6. The cadmium-reduced rice seedling raising device according to claim 5, wherein the air inlet mechanism comprises an air inlet pipe (23), a second one-way valve (24) and a floating air inlet head (25), the air inlet pipe (23) is connected to one side of the air bag (20) far away from the connecting pipe (21), the air inlet pipe (23) is communicated with the inner side of the air bag (20), the second one-way valve (24) is arranged at a position, close to the top end, of the air inlet pipe (23), of the air inlet pipe, the second one-way valve (24) only allows external air to enter the air bag (20) through the top end of the air inlet pipe (23), the floating air inlet head (25) is connected to the top end of the air inlet pipe (23), and buoyancy generated by the floating air inlet head (25) is larger than the gravity of the air inlet pipe (23) and the second one-way valve (24).
7. The cadmium-reduced rice seedling raising device according to claim 6, wherein the pressing mechanism comprises an L-shaped connecting plate (26) and a strip-shaped pressing plate (27), the strip-shaped pressing plate (27) is horizontally arranged at the top of the air bag (20), the area of the strip-shaped pressing plate (27) is the same as the area of the top of the air bag (20), and the connecting plate (26) is fixedly connected between the top of the strip-shaped pressing plate (27) and the side face of the bottom plate (3).
8. The cadmium-reduced rice seedling raising device according to claim 7, wherein the bottom edge of the bottom plate (3) uniformly protrudes downwards to form a baffle ring (28), and the bottom of the baffle ring (28) is lower than the bottom end of the guide pipe (11).
9. The cadmium-reducing rice seedling raising device according to claim 8, wherein U-shaped handles (29) are fixedly connected to the top positions of the front side and the rear side of the bottom plate (3), the handles (29) are attached to the seedling raising tray (1), and the tops of the handles (29) are lower than the tops of the seedling raising tray (1).
10. The cadmium-reduced rice seedling raising device according to claim 9, wherein in an initial state, the rubber plug (15) is positioned outside the guide pipe (11), and at the moment, the top end of the inserted rod (6) is kept separated from the bottom of the bottom plate (3).

Description

Cadmium-reducing rice seedling raising device Technical Field The invention belongs to the technical field of rice seedling raising devices, and particularly relates to a cadmium-reducing rice seedling raising device. Background In the growth process of rice, cadmium element in soil is easily absorbed by rice and is enriched in plants and seeds due to the influence of human pollutants and the growth characteristics of root hair plants, when people eat rice containing cadmium element, cadmium can be continuously accumulated in organs such as kidneys and bones, diseases such as kidney injury, osteoporosis and bone deformity are caused, and the functions of a reproductive system and an immune system are possibly influenced. In order to reduce the cadmium content in rice, in the rice cultivation process, three core mechanisms of selenium fertilizer application, physiological antagonism, chemical complexation and metabolic regulation form a synergistic effect, and finally, the dual purposes of reducing the cadmium content and improving the selenium content of rice seedlings (and subsequent plants) are realized. In the process of raising seedlings of rice, the existing seedling raising tray only has a simple planting function, and as rice grows, the ventilation holes at the bottom of the seedling raising tray are easily blocked by rice roots and culture matrixes, so that the rice roots are anoxic, rotten roots occur, and normal cultivation of rice is affected. Therefore, it is necessary to invent a cadmium-reducing rice seedling raising device to solve the above problems. Disclosure of Invention The invention provides a cadmium-reducing rice seedling raising device aiming at the problems and solving the problems in the background technology. In order to achieve the above purpose, the present invention provides the following technical solutions: A cadmium-reduced rice seedling growing device, comprising: The inner side of the seedling raising tray is uniformly provided with a plurality of seedling raising grids; the bottom plate is detachably connected to the bottom of the seedling raising tray, and a plurality of water inlets are uniformly formed in the position, opposite to the seedling raising grid, of the bottom plate; The utility model provides a pull throughs, includes base, inserted bar and pressure liquid subassembly, the base level set up in the bottom of bottom plate, and the symmetry is provided with a plurality of supporting components between base top edge position and the bottom plate, the quantity of inserted bar is a plurality of, inserted bar vertical fixation in the top of base, and a plurality of inserted bars are just right with a plurality of inlet openings one by one of bottom plate bottom, pressure liquid subassembly set up in the seedling culture check for with external clear water is impressed when seedling culture dish downwardly moving and is educated Miao Ge in. Further, the supporting component comprises a limit rod, a supporting spring, a fixing block and a nut, wherein the limit rod is vertically and fixedly connected to the side face of the base, the supporting spring is detachably sleeved on the limit rod, the fixing block is slidably sleeved on the limit rod, the fixing block is located at the top of the supporting spring, the fixing block is fixedly connected with the side face of the bottom plate, and the nut is in threaded sleeve connection with the top end of the limit rod and used for limiting the fixing block on the limit rod. Further, the liquid pressing component comprises a flow guide pipe, elastic pieces, ejector rods and a sealing mechanism, wherein the flow guide pipe is detachably and vertically inserted on the bottom plate, the flow guide pipe is vertically arranged at the central position of the seedling raising grid, the elastic pieces are uniformly and annularly distributed at the top ends of the flow guide pipe, the bottom ends of the elastic pieces are fixedly connected with the top ends of the flow guide pipe, the top ends of the elastic pieces are fixedly connected together, the middle parts of the elastic pieces protrude towards the axis direction far away from the flow guide pipe, the edges of the two adjacent elastic pieces are attached together, the ejector rods are vertically arranged at the bottom of the flow guide pipe, the ejector rods are vertically and fixedly connected with the top parts of the base, and the sealing mechanism is connected to the top ends of the ejector rods and used for pushing external clear water upwards in cooperation with the flow guide pipe when the seedling raising tray moves downwards. Further, sealing mechanism includes movable rod, rubber buffer and sealed pad, the movable rod slide perpendicularly peg graft in the top of ejector pin, and the movable rod is hollow design, the buoyancy that the movable rod produced is greater than the gravity sum of movable rod and rubber buffer, rubber buffer level fixed connection in the t