Selenium-rich cadmium-reducing rice seedling raising device

Abstract

The utility model discloses a selenium-rich cadmium-reducing rice seedling raising device which comprises a rice seedling raising bed and a water control seedling raising frame fixedly arranged in the middle of the rice seedling raising bed, a plurality of seedling raising trays arranged side by side are placed on the water control seedling raising frame, and a driving mechanism is fixedly installed at the top of the back face of the rice seedling raising bed. A spraying mechanism used for spraying liquid leaf selenium fertilizer in the rice seedling stage is installed on the driving mechanism, a sliding rail is fixedly arranged at the bottom of the back face of the rice seedling raising bed, and a plurality of reserved aisles which are evenly distributed are arranged on the front face of the rice seedling raising bed. The spraying mechanism and the driving mechanism are additionally arranged on the seedling raising bed, and during seedling raising, the driving mechanism can drive the spraying mechanism to directly face seedlings at a constant speed to spray foliar selenium fertilizer, so that the spraying efficiency of the liquid foliar selenium fertilizer can be improved, the spraying uniformity can also be improved, seedling raising workers do not need to manually spray the foliar selenium fertilizer, time and labor are saved, and the seedling raising efficiency is improved. The rice seedling culture management is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of rice seedling cultivation, in particular to a selenium-enriched and cadmium-reduced rice seedling cultivation device. Background Art

[0002] Rice is an important part of food in our life. Rice needs to go through seedling raising and transplanting during the seedling stage. At present, rice seedling raising is mainly carried out on a seedling bed, on which a seedling tray is laid, and the soaked rice seeds are sown on the seedling tray, and then placed on the seedling bed, covered with a layer of straw curtain, so that the rice seeds can germinate on the seedling tray, and water is sprayed regularly to keep the seedling tray moist. For example, a rice seedling bed with application number CN202320652098.3 includes a seedling pool, under which a heat preservation coil is laid, and under which a heat insulation layer is arranged to reduce the heat transfer from the heat preservation coil to the earth; rows of supports are arranged inside the seedling pool, and seedling trays are placed between two rows of supports, and both sides of the seedling trays are placed on the supports; the above common types of rice seedling raising devices have the following deficiencies in actual applications:

[0003] During the bud and seedling stages of rice, selenium fertilizer needs to be sprayed on the leaves many times to increase the absorption and conversion rate of selenium by rice and increase its cadmium resistance. Traditional seedling beds require workers to carry medicine boxes on their backs and spray manually, which not only has poor spraying uniformity but also increases the labor intensity of seedling workers. Utility Model Content

[0004] The utility model aims to provide a selenium-enriched and cadmium-reduced rice seedling raising device to solve the problem that the existing rice seedling raising device mentioned in the above background technology cannot automatically and evenly spray liquid selenium fertilizer.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a selenium-enriched and cadmium-reduced rice seedling raising device, comprising a rice seedling raising bed and a water-controlling seedling raising frame fixedly arranged in the middle of the rice seedling raising bed, a plurality of seedling raising trays arranged side by side are placed on the water-controlling seedling raising frame, a driving mechanism is fixedly installed on the top of the back side of the rice seedling raising bed, a spray mechanism for spraying liquid selenium fertilizer on the leaves of rice seedlings is installed on the driving mechanism, a slide rail is fixedly installed on the bottom of the back side of the rice seedling raising bed, a plurality of evenly distributed reserved walkways are provided on the front side of the rice seedling raising bed, and a drainage component for controlling the water level of the seedling raising bed is fixedly installed on the bottom of the front side of the rice seedling raising bed.

[0006] Preferably, the spray mechanism includes a mobile frame and a selenium fertilizer storage tank fixedly mounted on the mobile frame, a lifting pump is fixedly mounted on one side of the top of the selenium fertilizer storage tank, a water outlet of the lifting pump is fixedly connected to a lifting pipe, a spray pipe is fixedly mounted on one end of the lifting pipe, a plurality of atomizing nozzles are fixedly mounted on the bottom of the spray pipe, the spray pipe is arranged directly opposite to the rice seedling bed, and an addition port is fixedly mounted on the other side of the top of the selenium fertilizer storage tank; the selenium fertilizer is automatically sprayed on the rice leaves, and the spraying is uniform and efficient.

[0007] Preferably, the driving mechanism includes a support frame and a reduction motor fixedly installed on the top of the support frame, a ball screw is fixedly arranged at the output end of the reduction motor, a screw sleeve is transmission-connected to the middle part of the ball screw, and the screw sleeve is fixedly arranged on the movable frame; the transmission is stable, the spraying efficiency is high, and it saves time and effort.

[0008] Preferably, a slide is fixedly arranged at the bottom of the front side of the movable frame, and the slide is slidably arranged on a slide rail; the movable frame moves smoothly and stably.

[0009] Preferably, a switch plate is fixedly installed on one side of the support frame, and a power switch and a spray switch are fixedly installed on the surface of the switch plate. The reduction motor is electrically connected to the external power supply through the power switch, and the lifting pump is electrically connected to the external power supply through the spray switch; it is convenient to control the working status of the motor and the water pump to realize automatic spraying of selenium fertilizer on the rice leaves and complete the cultivation of selenium-rich rice.

[0010] Preferably, the drainage assembly includes a drainage pipe and a drainage valve fixedly installed on the drainage pipe, which is convenient for regular drainage and cleaning and maintenance.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The selenium-enriched chromium-reduced rice seedling raising device is additionally provided with a spray mechanism and a driving mechanism on the seedling raising bed. During the seedling raising period, the driving mechanism can drive the spray mechanism to spray selenium fertilizer on the leaves of the seedlings at a uniform speed, which can not only improve the spraying efficiency of the liquid foliar selenium fertilizer, but also improve the uniformity of the spraying. There is no need for manual spraying by seedling workers, which saves time and effort and is convenient for rice seedling management. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the rice seedling raising device of the utility model;

[0014] Figure 2 This is a structural schematic diagram of the selenium fertilizer storage box of the utility model;

[0015] Figure 3 This is a front cross-sectional view of the rice nursery bed of the utility model;

[0016] Figure 4 It is a rear cross-sectional view of the rice seedling bed of the utility model.

[0017] In the figure: 1. Rice seedling bed; 2. Water-controlled seedling rack; 3. Mobile rack; 4. Spray pipe; 5. Atomizing nozzle; 6. Selenium fertilizer storage tank; 7. Reserved walkway; 8. Rice seedling tray; 9. Support frame; 10. Reducer motor; 11. Switch board; 12. Drain pipe; 13. Drain valve; 14. Slide; 15. Screw sleeve; 16. Adding port; 17. Slide rail; 18. Lifting pump; 19. Ball screw; 20. Lifting pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] See also Figure 1-4 The utility model provides a selenium-enriched and cadmium-reduced rice seedling raising device, comprising a rice seedling raising bed 1 and a water-controlling seedling raising frame 2 fixedly arranged in the middle of the rice seedling raising bed 1, a plurality of seedling raising trays 8 arranged side by side are placed on the water-controlling seedling raising frame 2, a driving mechanism is fixedly installed on the top of the back side of the rice seedling raising bed 1, a spraying mechanism for spraying liquid selenium fertilizer on the leaves of rice seedlings is installed on the driving mechanism, a slide rail 17 is fixedly arranged on the bottom of the back side of the rice seedling raising bed 1, a plurality of evenly distributed reserved walkways 7 are arranged on the front side of the rice seedling raising bed 1, a drainage component for controlling the water level of the seedling raising bed is fixedly installed on the bottom of the front side of the rice seedling raising bed 1, a slide 14 is fixedly arranged on the bottom of the front side of the moving frame 3, and the slide 14 is slidably arranged on the slide rail 17, a switch plate 11 is fixedly installed on one side of the supporting frame 9, a power switch and a spray switch are fixedly installed on the surface of the switch plate 11, a reduction motor 10 is electrically connected to an external power supply through the power switch, and a lifting pump 18 is electrically connected to an external power supply through the spray switch;

[0020] When in use, the seedling raising tray 8 is placed side by side on the water-controlled seedling raising frame 2, and then the soaked rice is sown on the seedling raising tray 8 and covered with a straw curtain. Under the condition of keeping it moist, until the rice germination period, the straw curtain is opened, and the prepared rice foliar selenium fertilizer is added into the spray mechanism, and the driving mechanism is started. The spray mechanism is driven by the driving mechanism to pass through the rice seedling bed 1 at a uniform speed, and the foliar selenium fertilizer is sprayed on the sprouted rice on the seedling raising tray 8. After the spraying is completed, the straw curtain is re-covered. During the entire germination period, the foliar selenium fertilizer is sprayed regularly and multiple times to increase the selenium-enriched chromium-reducing ability of the rice. The rice foliar selenium fertilizer is made of a mixture of water, hydrated citric acid, soluble trace elements, nitrogen fertilizer, potassium fertilizer and sodium selenite.

[0021] See also Figure 1 , Figure 2 and Figure 3Further, the spray mechanism includes a mobile frame 3 and a selenium fertilizer storage tank 6 fixedly installed on the mobile frame 3, a lifting pump 18 is fixedly installed on one side of the top of the selenium fertilizer storage tank 6, a water outlet of the lifting pump 18 is fixedly connected to a lifting pipe 20, a spray pipe 4 is fixedly installed on one end of the lifting pipe 20, a plurality of atomizing nozzles 5 are fixedly installed at the bottom of the spray pipe 4, the spray pipe 4 is arranged directly opposite to the rice seedling bed 1, and an addition port 16 is fixedly arranged on the other side of the top of the selenium fertilizer storage tank 6;

[0022] When in use, the prepared foliar selenium fertilizer is added into the selenium fertilizer storage tank 6 through the adding port 16. During spraying, the lifting pump 18 will continuously draw the liquid selenium fertilizer in the selenium fertilizer storage tank 6, fill it into the spray pipe 4 through the lifting pipe 20, and spray it directly onto the germinating rice seedlings by the atomizing nozzle 5, so as to increase the absorption and conversion rate of selenium by rice and improve its chromium-blocking performance.

[0023] See also Figure 1 , Figure 2 and Figure 3 Further, the driving mechanism includes a support frame 9 and a reduction motor 10 fixedly mounted on the top of the support frame 9, a ball screw 19 is fixedly arranged at the output end of the reduction motor 10, a screw sleeve 15 is transmission-connected to the middle part of the ball screw 19, and the screw sleeve 15 is fixedly arranged on the moving frame 3;

[0024] When in use, during spraying, the reduction motor 10 will drive the ball screw 19 to rotate, and then drive the movable frame 3 to slide at a uniform speed on the slide rail 17 through the screw sleeve 15, so as to achieve uniform spraying of the seedling tray 8, without the need for manual adjustment by the seedling worker, and the spraying is uniform and efficient.

[0025] See also Figure 1 and Figure 4 , further, the drainage assembly includes a drainage pipe 12 and a drainage valve 13 fixedly installed on the drainage pipe 12;

[0026] When in use, during the seedling raising period, excess water will pass through the rice seedling raising tray 8, fall through the water control seedling raising frame 2, and enter the rice seedling raising bed 1 for collection to prevent excessive water. After the seedling raising work is completed, the drain valve 13 is opened to discharge the excess water through the drain pipe 12.

[0027] When the embodiment of the present application is in use: after the seedling raising is completed, the seedling raising workers can enter the middle part of the rice seedling bed 1 through the reserved walkway 7, so as to facilitate the taking of the seedling raising tray 8 in the middle part of the rice seedling bed 1 and the transplanting of the seedlings. By automatically spraying selenium fertilizer on the leaves multiple times during the seedling raising period, the selenium-rich and chromium-blocking properties of rice can be increased.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A selenium-enriched and cadmium-reduced rice seedling raising device, comprising a rice seedling raising bed (1) and a water-controlling seedling raising frame (2) fixedly arranged in the middle of the rice seedling raising bed (1), characterized in that: A plurality of rice seedling raising trays (8) arranged side by side are placed on the water-controlled seedling raising frame (2); a driving mechanism is fixedly installed on the top of the back side of the rice seedling raising bed (1); a spraying mechanism for spraying liquid selenium fertilizer on the leaves of rice seedlings is installed on the driving mechanism; a slide rail (17) is fixedly installed on the bottom of the back side of the rice seedling raising bed (1); a plurality of evenly distributed reserved walkways (7) are provided on the front side of the rice seedling raising bed (1); and a drainage component for controlling the water level of the seedling raising bed is fixedly installed on the bottom of the front side of the rice seedling raising bed (1).

2. The selenium-enriched and cadmium-reduced rice seedling raising device according to claim 1, characterized in that: The spray mechanism comprises a mobile frame (3) and a selenium fertilizer storage box (6) fixedly mounted on the mobile frame (3); a lifting pump (18) is fixedly mounted on one side of the top of the selenium fertilizer storage box (6); a water outlet of the lifting pump (18) is fixedly connected to a lifting pipe (20); a spray pipe (4) is fixedly mounted on one end of the lifting pipe (20); a plurality of atomizing nozzles (5) are fixedly mounted on the bottom of the spray pipe (4); the spray pipe (4) is arranged directly opposite to the rice nursery bed (1); and a adding port (16) is fixedly mounted on the other side of the top of the selenium fertilizer storage box (6).

3. A selenium-enriched and cadmium-reduced rice seedling raising device according to claim 2, characterized in that: The driving mechanism comprises a support frame (9) and a reduction motor (10) fixedly mounted on the top of the support frame (9); a ball screw (19) is fixedly mounted on the output end of the reduction motor (10); a screw sleeve (15) is transmission-connected to the middle of the ball screw (19); and the screw sleeve (15) is fixedly mounted on the moving frame (3).

4. The selenium-enriched and cadmium-reduced rice seedling raising device according to claim 2, characterized in that: A slide frame (14) is fixedly arranged at the bottom of the front side of the movable frame (3), and the slide frame (14) is slidably arranged on a slide rail (17).

5. The selenium-enriched and cadmium-reduced rice seedling raising device according to claim 3, characterized in that: A switch plate (11) is fixedly mounted on one side of the support frame (9), a power switch and a spray switch are fixedly mounted on the surface of the switch plate (11), the reduction motor (10) is electrically connected to an external power source via the power switch, and the lift pump (18) is electrically connected to an external power source via the spray switch.

6. The selenium-enriched and cadmium-reduced rice seedling raising device according to claim 1, characterized in that: The drainage assembly comprises a drainage pipe (12) and a drainage valve (13) fixedly mounted on the drainage pipe (12).

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