A device for applying carbon-based slow-release fertilizer to tobacco holes in a quantitative ring

Abstract

The present application belongs to the field of agricultural planting and fertilization technology, and particularly relates to a device for quantitatively and circularly applying carbon-based slow-release fertilizer to tobacco holes, comprising a bin with a sleeve coaxially arranged inside, the sleeve is fixedly connected to the top wall and the bottom wall of the bin at both ends, and the top end of the sleeve penetrates to the outside, and a ring-shaped material leakage hole is coaxially arranged in the bottom wall of the bin relative to the sleeve, a blocking ring is arranged on the top of the material leakage hole, a ring-shaped hopper is arranged below the bin in cooperation with the gap of the ring-shaped material leakage hole, the hopper is composed of a bottom plate, movable side walls which are equidistantly inserted into the pre-designed arc-shaped holes of the bottom plate, and fixed side walls which are arranged between the movable side walls, the fixed side walls are fixedly connected to the bottom plate at the bottom and form two closed side walls which are coaxially arranged relative to the bottom plate with the movable side walls, and the top end of the movable side walls is provided with a flange, and the flanges of the two closed side walls are arranged in an extension mode with the back facing. The present application has simple structure and low cost, and can quickly realize the purpose of quantitative material taking and circular fertilization through the cooperation of mechanical structure, and is very convenient to operate.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of agricultural planting technology, and particularly relates to a device for quantitatively and circularly applying carbon-based slow-release fertilizer in tobacco holes. BACKGROUND

[0002] The biomass carbon prepared at low temperature has good adsorption effect, and carbon-based slow-release fertilizer can be obtained by mixing the biomass carbon with conventional fertilizer. The carbon-based slow-release fertilizer is generally applied in the outer circle of the tobacco holes after the tobacco is transplanted, which can release the fertilizer for a long time to meet the demand of the tobacco plants for nutrients. The biomass carbon has good biological activity and surface activation performance, which can create a good microbial environment for the growth and reproduction of microbial communities, adsorb various functional groups and be used as a catalyst, and thus effectively improve the soil environment and promote the development of green low-carbon agriculture and environment-friendly agriculture in China.

[0003] Although there are many fertilizer application devices in the existing agricultural production, the fertilizers are usually applied in strips or holes, but the structure is complex, the cost is high, and the device cannot be popularized. However, the quantitative and slow-release technology needs to be solved, and the traditional operation mode is simple and rough, such as the traditional hand throwing and spreading, which cannot achieve the quantitative and positioning fertilization effect of precision agriculture. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the present application is to provide a device for quantitatively and circularly applying carbon-based slow-release fertilizer in tobacco holes. The device has a simple structure and low cost, and can quickly realize the purpose of quantitative material taking and circular fertilization by using the cooperation of mechanical structures, and is very convenient to operate.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A device for quantitatively and circularly applying carbon-based slow-release fertilizer in tobacco holes, characterized in that the device comprises a bin with a sleeve coaxially arranged inside, the sleeve is fixedly connected to the top wall and the bottom wall of the bin at both ends and penetrates to the outside at the top end, and a ring-shaped material leakage hole is coaxially arranged in the bottom wall of the bin relative to the sleeve; and a blocking ring is arranged on the top of the material leakage hole.

[0007] A ring-shaped hopper matched with the gap of the ring-shaped material leakage hole is arranged below the bin, the hopper is composed of a bottom plate, movable side walls inserted at equal intervals in the pre-designed arc-shaped hole of the bottom plate, and fixed side walls arranged between the movable side walls, the fixed side walls are fixedly connected to the bottom plate at the bottom and form two closed loop side walls coaxially arranged on the bottom plate with the movable side walls, and the movable side walls are provided with flanges at the top end and the flanges of the two closed loop side walls are arranged in the opposite direction.

[0008] Preferably, the flanges are connected to the top surface of the bottom plate below through limiting springs.

[0009] Preferably, the two closed loop side walls are further connected by two connecting plates arranged symmetrically with respect to the two base plate axes, the two ends of the connecting plates are connected with the corresponding fixed side walls, and the top surfaces of the connecting plates, the fixed side walls and the top surfaces of the movable side walls are arranged in a horizontal and flush manner.

[0010] Preferably, the base plate is provided with a discharging port on the plate surface between the two closed loop side walls, and the discharging port is covered by the operating ring.

[0011] Preferably, the two side plate bodies at the discharging port are in the form of curved surface plates bent downward, and the high points of the curved surface plates smoothly transition to the base plate bodies where the closed loop side walls are located.

[0012] Preferably, the axial cross-section ring body of the operating ring is in the form of a radially middle segment bent upward along the axis, and the gap at the bottom of the axial cross-section ring body is greater than the gap at the bottom end of the discharging port and less than the gap between the two closed loop side walls.

[0013] Preferably, the radially middle segment bottom surface of the operating ring ring body is symmetrically provided with an axially extending support rod, and the two bottom ends of the support rods are radially bent and connected with an axially extending pull rod.

[0014] Preferably, the pull rod is gap-fitted with the sleeve, the top part of the pull rod is exposed to the outside after penetrating out of the sleeve, and a handle is vertically connected to the top part of the pull rod, a return spring is sleeved on the pull rod between the handle and the top wall of the silo, and the return spring is always in a compressed state.

[0015] Preferably, the device further comprises a limiting ring plate located below the annular hopper, and the inner diameter of the limiting ring plate is greater than the outer diameter of the operating ring and less than the outer diameter of the base plate.

[0016] Preferably, the outer ring surface of the limiting ring plate is connected with the silo through a connecting rod.

[0017] The working process of the present application is as follows:

[0018] First, connect the silo filled with fertilizer to the moving device, and keep the moving track of the silo above the tobacco ridge. The hopper is pressed on the ring body of the operating ring under the action of gravity, at the same time, the bent segment ring body of the operating ring is embedded into the hopper from the discharging port of the hopper, and the bent segment ring body seals the discharging port; at the same time, the movable side wall bears the self-weight through the limiting spring between the flange and the base plate, and in the natural state, the movable side wall, the fixed side wall, the base plate and the operating ring form a ring-shaped hopper structure with an open top, and the internal volume of the hopper in this state is fixed, thereby the amount of fertilizer to be loaded or unloaded in the later full load state can be determined.

[0019] Then the device is moved to the position directly above the hole by moving the device along the direction of the ridge. When the device is directly above the hole, the farmer can pull the rod upward, which causes the rod to move the operating ring and the hopper upward. When the top of the hopper contacts the hole, the movable side plate cannot move further upward because the flange is blocked by the plate beside the hole. The bottom plate and the fixed side plate move upward until the bottom plate contacts the flange.

[0020] In the above process, the fixed side plate pushes the blocking ring of the hole upward as it moves through the hole. The fertilizer particles flow into the hopper through the gap between the fixed side plate and the hole. The part of the hopper below the hole is still closed until the fixed side plate reaches the top of its travel.

[0021] Then the rod is moved downward, which causes the corresponding components to move downward. As the bottom plate and the fixed side plate move out of the hole, the fixed side plate and the movable side plate continue to block the fertilizer in the hopper until the hopper is completely removed from the hole. The blocking ring covers the hole again, and the hopper is full of fertilizer. The hopper can be made of iron, and the blocking ring can be made of a strong magnet, which can effectively overcome the resistance of the fertilizer in the hole and prevent the blocking ring from moving radially.

[0022] Finally, the rod is moved downward to move the hopper downward. When the bottom plate contacts the limiting ring, the bottom plate, the fixed side plate, and the movable side plate cannot move downward. However, the rod can continue to move the operating ring downward, which causes the operating ring and the hopper to separate and expose the discharge port of the hopper. The fertilizer in the hopper can fall out of the discharge port and reach the hole, achieving the purpose of ring application.

[0023] After completing the above operation, the rod is moved upward to cause the operating ring to support the hopper and block the discharge port. Then the device is moved to the next hole to repeat the above operation.

[0024] Compared with the prior art, the device has the following advantages: the device has a simple structure and low cost. The device can quickly achieve the purpose of quantitative material taking and ring application by using the cooperation of mechanical structures. The overall operation only involves moving and vertically driving the rod, which is convenient and easy to market. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 Structure diagram of the device for quantitative ring application of carbon-based slow-release fertilizer in a hole;

[0026] Figure 2 Structure diagram of the hopper;

[0027] Figure 3 The connecting structure diagram of the fixed side wall and the bottom plate in the hopper is described for the specific embodiment;

[0028] Figure 4 The structure diagram of the movable side wall in the hopper is described for the specific embodiment;

[0029] Figure 5 The connecting structure diagram of the pull rod and the limiting ring is described for the specific embodiment;

[0030] Figure 6 The axial section structure diagram of the limiting ring is described for the specific embodiment. Specific embodiment

[0031] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0032] As shown in the drawings, Figures 1-6 A smoke hole quantitative ring carbon-based slow-release fertilizer device, the device includes a silo 1, a hopper and a limiting ring plate 15 arranged coaxially from top to bottom, the bottom of the hopper is connected to the outer ring surface of the limiting ring plate 15 through a connecting rod 14:

[0033] The bottom surface of the silo 1 is also provided with an annular material leakage hole, and the top of the material leakage hole is covered with a plugging ring 12, and a sleeve 13 is coaxially arranged in the silo 1;

[0034] The hopper is composed of a bottom plate 2, movable side walls 22 inserted at equal intervals in the pre-designed arc-shaped holes 24 of the bottom plate, and fixed side walls 21 arranged between the movable side walls 22, the bottom of the fixed side wall 21 is fixedly connected to the bottom plate 2 and forms a closed loop side wall 27 coaxially arranged on the two opposite bottom plates with the movable side wall 22, the two closed loop side walls 27 are also connected through two connecting plates 26 arranged symmetrically on the two opposite bottom plates, and the two ends of the connecting plate 26 are connected to the corresponding fixed side wall 21. The movable side wall 22 is provided with a flange 23 at the top end, and the flanges 23 of the two closed loop side walls 27 are arranged in the opposite direction, the flange 23 and the top surface of the bottom plate 2 below are connected by a limiting spring 28, and the top surface of the connecting plate 26, the fixed side wall 21 and the top surface of the movable side wall 22 are arranged in the same height and are flush;

[0035] The bottom plate 26 is provided with a discharge port 25 on the plate surface between the two closed loop side walls, and the two side plate bodies at the discharge port 25 are curved into a curved plate shape and the high point of the curved plate smoothly transitions to the plate body of the bottom plate 2 where the closed loop side wall 27 is located;

[0036] The hopper further comprises an operating ring 3 for plugging the discharge port 25, the axial cross-section ring body of the operating ring 3 is radially bent at the middle section along the axis, and the gap at the bottom of the axial cross-section ring body is greater than the gap at the bottom end of the discharge port 25 and smaller than the gap between the two closed ring side walls 27, the bottom surface of the radially bent middle section of the ring body of the operating ring 3 is symmetrically provided with axially extending support rods 31, the bottom ends of the two support rods 31 are radially bent and connected with axially extending pull rods 32, the pull rods 32 are gap-fitted with the sleeve 13 in the hopper 1, and the top of the pull rods 32 is exposed to the outside and vertically connected with a handle 33, a return spring 34 is sleeved on the pull rod 32 between the handle 33 and the top wall of the hopper 1, and the return spring 34 is always in a compressed state.

[0037] The inner diameter of the limiting ring plate 15 is greater than the outer diameter of the operating ring 3 and smaller than the outer diameter of the bottom plate 2.

[0038] Under normal conditions, the hopper is pressed on the ring body of the operating ring 3 under the action of gravity, at the same time, the bent section ring body of the operating ring 3 is embedded in the hopper from the discharge port 25 of the hopper, and the discharge port 25 is plugged by the ring body of the operating ring 3; at the same time, the movable side wall bears the self-weight through the limiting spring 28 between the flange 23 and the bottom plate 1, and in the natural state, the movable side wall, together with the fixed side wall 21, the bottom plate 2 and the operating ring 3, forms a ring-shaped hopper structure with an open top, and the internal volume of the hopper in this state is fixed, so that the amount of fertilizer taken in the later full load state can be determined.

[0039] At the same time, in this embodiment, the deformation elastic force of the return spring 34 can be set to be greater than the elastic force of the limiting spring 28, so that the present application presents the following state when it is not under stress:

[0040] Since the return spring 34 is always in a compressed state, the top end of the return spring 34 will keep the outward pushing effect on the handle 33 relative to the hopper 1, so that the pull rod 32 is at the top point of its own axial stroke. At the same time, the pull rod 32 drives the hopper through the operating ring 3, so that the hopper is also at the top point of its own axial stroke, that is, the fixed side wall 21 is completely inserted into the hopper 1 from the leakage hole of the hopper 1, and since the movable side plate 22 is provided with the flange 23 which is blocked by the plate body beside the leakage hole, the flange 23 and the movable side plate 22 are completely left outside the hopper 1, and the limiting spring 28 reaches the maximum degree of deformation. The fixed side plate 21 entering the hopper 1 also pushes up the plugging ring 12 covering the leakage hole, so that the fertilizer particles flow into the hopper from the gap of the fixed side plate 21 (the part of the hopper below the leakage hole is still closed, and the hopper can be made of iron material, and the plugging ring can be made of strong magnet, so that the resistance of the fertilizer in the hopper can be effectively overcome during the movement of the fixed side wall and the plugging ring, and the radial displacement of the plugging ring can be prevented).

[0041] Before use, first connect the fertilizer-filled bin 1 with the moving device, and keep the moving track of the bin 1 above the tobacco ridge, then drive the invention to move along the extension direction of the tobacco ridge by the moving device, when the invention moves to the position directly above the tobacco hole, the tobacco farmer can again overcome the elastic force of the reset spring 34 to press down the handle 33 and the pull rod 32, so that the pull rod 32 drives the operating ring 3 and the hopper to move down through the support rod 31, during the moving down process:

[0042] First, the bottom plate 2 and the fixed side plate 21 of the hopper are moved out of the material leakage hole, and at the same time, since the limiting spring 28 is still in the deformed state, even if the bottom plate moves down, the limiting spring 28 will still make the flange 23 of the movable side plate touch the bottom of the bin 1, so that the hopper part outside the bin 1 is kept in a closed state at all times, thereby effectively receiving the fertilizer entering the hopper from the gap between the fixed side plate 21 in the bin. Until the fixed side plate 21 is completely moved out of the material leakage hole, at this moment, the hopper is in a state of top opening but full of fertilizer, and the sealing ring 12 effectively seals the material leakage hole.

[0043] Finally, continue to move the pull rod 32 downward and drive the hopper to move downward, when the hopper bottom plate 2 contacts the limiting ring plate 15, the bottom plate 2 cannot move down together with the fixed side plate 21 and the movable side plate 22 directly connected thereto. However, the pull rod 32 can drive the operating ring 3 to continue to move downward, thereby making the operating ring 3 and the hopper separate and exposing the discharge port 25 of the hopper. In this way, the fertilizer inside the hopper can fall from the discharge port 25 to the outside of the tobacco hole, thereby achieving the purpose of ring application.

[0044] After completing the above operation, the hand can be released to make the reset spring drive the pull rod to move upward and make the operating ring bear the weight of the hopper and block the discharge port again, and the hopper enters the bin again. Then move to the next tobacco hole and repeat the above operation.

Claims

1. A device for applying carbon-based slow-release fertilizer by quantitative ring application in smoke holes, characterized in that: The device includes a silo with a sleeve coaxially arranged inside, the two ends of the sleeve are fixedly connected to the top wall and bottom wall of the silo respectively, and the top end of the sleeve penetrates to the outside, and the bottom wall of the silo is also coaxially opened with an annular leakage hole relative to the sleeve, and the top of the annular leakage hole is covered with a sealing ring; An annular hopper that is in clearance with the annular leakage hole is arranged below the silo. The hopper is composed of a bottom plate, movable side walls that are inserted into preset arc-shaped holes in the bottom plate at equal intervals, and fixed side walls arranged between the movable side walls. The bottom of the fixed side wall is fixedly connected to the bottom plate and forms two closed-loop side walls coaxially arranged relative to the bottom plate with the movable side wall. The top of the movable side wall is radially provided with a flange, and the flanges of the two closed-loop side walls are extended in opposite directions. The flange is connected to the top surface of the bottom plate below it through a limit spring. The bottom plate is provided with a feed opening on the plate surface between the two closed-loop side walls, and the feed opening is covered by the operating ring; The axial cross-section of the operating ring is in a shape where the radial middle section is bent upward along the axis, and the gap at the bottom of the axial cross-section ring is larger than the gap at the bottom end of the discharge port and smaller than the gap between the two closed-loop side walls. The bottom surface of the radial middle section of the operating ring is symmetrically provided with axially extending struts, and the bottom ends of the two struts are radially bent and connected to the axially extending pull rods. The pull rods are loosely matched with the sleeves, and the top of the pull rods is exposed to the outside world after passing through the sleeves and is vertically connected to a handle. A reset spring is sleeved on the pull rod between the handle and the top wall of the silo, and the reset spring is always in a compressed state. The device further comprises a limiting ring plate located below the annular hopper, wherein the inner diameter of the limiting ring plate is larger than the outer diameter of the operating ring and smaller than the outer diameter of the bottom plate.

2. The device for applying carbon-based slow-release fertilizer by quantitative ring application in smoke holes as claimed in claim 1, characterized in that: The two closed-loop side walls are also connected by two connecting plates arranged symmetrically relative to the bottom plate. The two ends of the connecting plates are connected to the corresponding fixed side walls, and the top surfaces of the connecting plates, the fixed side walls and the top surfaces of the movable side walls are arranged at the same height and flush.

3. The device for applying carbon-based slow-release fertilizer by quantitative ring application in smoke holes as claimed in claim 1, characterized in that: The two side plates at the discharge port are in the shape of downwardly bent curved plates, and the high points of the curved plates smoothly transition to the bottom plate where the closed-loop side walls are located.

4. The device for applying carbon-based slow-release fertilizer by quantitative ring application in smoke holes as claimed in claim 1, characterized in that: The outer ring surface of the limiting ring plate is connected to the silo through a connecting rod.

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