Fertilizing equipment for planting crops in saline-alkali soil
By adopting double-nozzle inclined spraying and precision spraying technology in saline-alkali land fertilization equipment, the problems of low crop nutrient absorption efficiency and salt residue in saline-alkali land are solved, and efficient and economical fertilization effects are achieved.
Patent Information
- Application Number
- CN202511147958.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-16
- Publication Date
- 2025-10-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing fertilization equipment is difficult to effectively improve the nutrient absorption efficiency of crop roots in saline-alkali land, and spraying fertilizer onto the surface of leaves can easily cause salt residues that affect crop growth.
A fertilization equipment is designed with a double nozzle structure. The nozzles are tilted upward to spray onto the lower surface of crop leaves. Combined with height and spacing adjustment components, precise spraying of the fertilizer mixture is achieved, avoiding high-altitude spraying and spraying on the upper surface of leaves.
It improves the nutrient absorption efficiency of crops in saline-alkali land, reduces water and fertilizer waste, avoids the effects of salt drying, promotes crop growth and reduces costs.
Smart Images
Figure CN120753082A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of fertilizing equipment, in particular to a fertilizing equipment used for planting crops in saline-alkali land. Background Art
[0002] Because saline-alkali soil contains excessive salt and alkaline substances, the high salinity and alkalinity of this soil will interfere with the crops' absorption of water and nutrients, resulting in poor soil physical properties. In addition, saline-alkali land usually has poor air permeability and poor drainage, making it difficult for fertilizers to spread, resulting in stunted plant growth. In order to ensure that common grain crops such as amaranth and corn in saline-alkali land can obtain adequate nutrients throughout the growing season, saline-alkali land must be specially fertilized. Fertilization for saline-alkali land is usually based on base fertilizer and supplemented by topdressing. Base fertilizer is applied 15 to 20 days before sowing or planting. Sprinkle 5cm to 10cm thick organic fertilizer on the planting area on the soil, and use plowing to turn the organic fertilizer into the soil. The plowing depth is usually 20cm to 30cm. Mix it with the soil and then cover it with soil to reduce the surface salt. Topdressing is an important node that determines the subsequent nutrient absorption of crops.
[0003] At present, spraying is a topdressing method commonly used. This method mainly involves spraying a fertilizer mixture onto crops using spraying equipment so that the fertilizer mixture can be absorbed by the crop roots more quickly. The fertilizer is usually adaptively mixed and adjusted according to the soil quality of the saline-alkali land and the type of crops, such as humic acid foliar fertilizers, amino acid foliar fertilizers, and alginic acid foliar fertilizers. Currently, commonly used fertilization equipment includes high-pressure remote sprinkler trucks, sprayers consisting of a liquid storage tank and multiple nozzles built on one side of the planting area, and even plant protection drones to spray the fertilizer mixture onto the leaves. These fertilization equipment all have containers that can hold fertilizers diluted with water, and are all equipped with high-pressure or a large number of evenly distributed spray heads, through which the fertilizer mixture is quickly sprayed out.
[0004] However, although the above-mentioned fertilization equipment can achieve rapid sprinkler irrigation effects, for some soils with severe salinization, the root absorption capacity of crops is weak, and it is difficult to absorb the nutrients required to promote crop growth, which makes it difficult for crops to continue to grow. At the same time, the currently available fertilization equipment can spray the fertilizer mixture onto the leaves. Although the leaves of crops also have the function of absorbing fertilizer nutrients, the stomata of the crop leaves used to absorb nutrients are mainly distributed on the lower epidermis. Therefore, for the growth of crops, the nutrients absorbed by the upper surface of the leaves are a drop in the bucket. Even some soil areas with severe salinization evaporate with high temperature, so that some salt will float in the air. As the fertilization device sprays fertilizer, the salt falling from the air adheres to the upper surface of the crop leaves. After the water evaporates, the salt molecules will dry on the upper surface of the crop leaves, thereby affecting the sunlight on the crop leaves, further affecting the growth of crops. Summary of the Invention
[0005] The present invention provides a fertilizing device for planting crops in saline-alkali land, which can improve the absorption effect of crops and is beneficial to the growth of crops.
[0006] The present invention provides a fertilizer application device for planting crops in saline-alkali land, comprising: a vehicle body, a spraying assembly, a height adjustment assembly and a spacing adjustment assembly. The vehicle body is loaded with a barrel body for filling a fertilizer mixture. The spraying assembly is arranged on the front side of the vehicle body close to the vehicle body. The spraying assembly comprises a pump body connected to the water outlet of the barrel body, two infusion pipes connected to the water outlet of the pump body, and spray heads respectively connected to the water outlets of the two infusion pipes. The outlets of the two spray heads both extend obliquely upward so that the fertilizer mixture can be sprayed onto the lower surfaces of leaves of crops on both sides of the vehicle body. The height adjustment assembly comprises a guide rail extending vertically, a sliding member slidably connected to the guide rail, and a driving part driving the sliding member to slide up and down. The two spray heads are both connected to the sliding member. As the sliding member slides vertically, the two spray heads spray the fertilizer mixture on the lower surfaces of leaves at different heights. The spacing adjustment assembly is connected to the two spray heads and reciprocally adjusts the spacing between the two spray heads to increase the spraying range of the fertilizer mixture.
[0007] Preferably, the angle between the two nozzles is 90° to 120°.
[0008] Preferably, the two nozzles are connected via a bracket, and the bracket is fixedly connected to the sliding member via a connecting rod.
[0009] Preferably, the bracket is provided with a slide groove horizontally along the width extension direction of the vehicle body, a slider is slidably connected in the slide groove, the nozzle passes through and is fixedly connected to the slider, and the two nozzles are connected to the spacing adjustment component through the slider.
[0010] Preferably, the spacing adjustment assembly includes: a slide rail and two elastic members. The slide rail extends vertically, penetrates vertically and is inserted into the middle of the bracket and the two are slidably connected. The lower end of the slide rail is fixedly connected to the vehicle body, and the two side walls of the slide rail close to the nozzle are symmetrically fixed with multiple arc-shaped protrusions. The two elastic members are respectively fixedly connected to the side walls of the two sliders that are away from each other, and the ends of the two elastic members that are away from each other are respectively fixedly connected to the inner side walls of the bracket. As the bracket slides vertically, the two nozzles slide back and forth relative to each other in the horizontal direction through the contact between the corresponding sliders and the protrusions.
[0011] Preferably, the bracket is hollow and a avoidance groove is vertically provided in the middle thereof corresponding to the protrusion.
[0012] Preferably, the driving part includes: two sprockets and two push rods, the center lines of the two sprockets are parallel and the two have the same size, one of the sprockets is mounted on and fixedly connected to the front wheel axle of the vehicle body, and the other sprocket is engaged with it and is closer to the side of the front of the vehicle, the two push rods are respectively hinged on the same side of the two sprockets, the two push rods are symmetrically arranged, and the upper ends of the push rods are hinged to the sliding parts. As the wheel rotates, the two push rods simultaneously push the sliding part upward or pull the sliding part downward under the rotational engagement of the sprocket, so that the sliding part slides back and forth up and down along the guide rail.
[0013] Preferably, the guide rail is a longitudinally arranged rod, and the sliding member is a plate, wherein a through hole is vertically opened in the middle thereof for the rod to pass through.
[0014] Preferably, the two sliders are placed in the bracket and are both connected to a guide wheel for reducing the friction between the sliders and the protrusions on the side close to each other.
[0015] Preferably, the two infusion tubes are made of soft material.
[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the two nozzles provided in the present fertilizer application equipment can achieve the effect of spraying crops on both sides of the travel route, the symmetrical design of the dual nozzles balances the spraying pressure, can avoid unilateral overload and damage to the blades caused by impact, and by designing the outlets of the two nozzles to be tilted upward, the fertilizer mixture can be sprayed directly onto the stomata concentrated area on the lower epidermis of the leaves. Compared with the existing sprinkler irrigation equipment and sprinkler irrigation methods, the present equipment greatly improves the absorption efficiency of the stomata on the lower surface of the crop leaves for fertilizer nutrients, and greatly promotes the growth of crops in saline-alkali land. This design can reduce the interference of soil salinity on fertilizer efficiency. Specifically, The barrel body, pump body and liquid outlet pipe are set up, which greatly reduces water consumption and fertilizer waste compared to the existing high-pressure or multi-nozzle large-area direct nozzles, achieves the beneficial effect of precise spraying, and is more cost-effective than the existing sprinkler fertilization equipment. Since it avoids the spraying of the fertilizer mixture at high altitudes, it is more environmentally friendly than the existing fertilization structure. At the same time, this fertilization equipment also avoids the fertilizer mixture being sprayed directly on the upper surface of the leaves, resulting in the upper leaf surface being unable to absorb nutrients quickly and comprehensively. Instead, it carries residual salts and dries on the leaf surface as it evaporates, so that the upper leaf surface of the crop is covered, affecting photosynthesis and affecting the growth of the crop.
[0017] At the same time, the vehicle body is used to carry the barrel filled with the fertilizer mixture and other components, providing a mobile foundation. The height adjustment component can adapt to the leaf distribution of plants of different heights, so that the fertilizer mixture can be sprayed more fully on the lower surface of the crop leaves. In summary, this fertilization equipment can improve the crop absorption effect and can have the beneficial effect of avoiding crop damage compared to existing fertilization equipment. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 A left side view structural schematic of a fertilization equipment for saline-alkali soil crop planting provided by an embodiment of the present application; Figure 2 A partial structural schematic of a fertilization equipment for saline-alkali soil crop planting provided by an embodiment of the present application; Figure 3 A partial structural schematic of a fertilization equipment for saline-alkali soil crop planting provided by an embodiment of the present application; Figure 4 A structural schematic in the front view perspective of Figure 3 ; Figure 5 A partial structural schematic of a fertilization equipment for saline-alkali soil crop planting provided by an embodiment of the present application; Figure 6 A structural schematic of a support in a fertilization equipment for saline-alkali soil crop planting provided by an embodiment of the present application; Figure 7 A structural schematic in the top view perspective of Figure 3 ; Figure 8 A structural schematic in the top view perspective of a sliding member in a fertilization equipment for saline-alkali soil crop planting provided by an embodiment of the present application.
[0019] BRIEF DESCRIPTION OF DRAWINGS 1, vehicle body; 11, vehicle frame; 12, front wheel; 13, rear wheel; 14, handle; 2, barrel body; 3, spraying assembly; 31, pump body; 32, spray head; 4, height adjusting assembly; 41, guide rail; 42, sliding member; 43, driving part; 431, toothed disc; 432, push rod; 5, support; 51, sliding groove; 52, sliding block; 53, avoiding groove; 54, connecting rod; 6, spacing adjusting assembly; 61, sliding rail; 62, protrusion; 63, elastic member; 7, guide wheel; 8, barrel frame; 9, sliding rod; 10, compression spring. DETAILED DESCRIPTION
[0020] One specific embodiment of the present application will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present application is not limited by the specific embodiment.
[0021] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the technical solutions of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0022] With reference to Figure 1 The present application provides a kind of for saline-alkali soil crop planting fertilization equipment, comprising: car body 1, spray component 3, height adjusting component 4, car body 1 its car body is loaded with for filling fertilizer mixed solution bucket 2, spray component 3 is set to near the car head side of car body 1, spray component 3 includes the pump body 31 being connected with the water outlet of bucket 2, two liquid delivery tubes being connected with the water outlet of pump body 31 and the spray head 32 being connected with the water outlet of two liquid delivery tubes respectively, the outlet of two spray heads 32 all extends towards oblique upper, to make fertilizer mixed solution can be sprayed to the lower surface of blade of crop on both sides of car body 1, height adjusting component 4 includes the guide rail 41 extending along vertical, the sliding member 42 being slidably connected on guide rail 41 and the drive part 43 driving sliding member 42 to slide up and down, two spray heads 32 are all connected with sliding member 42, with the vertical sliding of sliding member 42, two spray heads 32 spray fertilizer mixed solution to the lower surface of blade of different height, interval adjusting component 6, with two described spray head 32 is connected, reciprocating adjusts the interval between two spray heads 32, to increase the spray range of fertilizer mixed solution.
[0023] In the above embodiment, the two nozzles 32 provided in the present fertilizing equipment can achieve the effect of spraying crops on both sides of the travel route, and the symmetrical design of the double nozzles 32 balances the spraying pressure to avoid unilateral overload and damage to the blades caused by impact, and by designing the outlets of the two nozzles 32 to be tilted upward, the fertilizer mixture can be sprayed directly toward the stomata concentration area on the lower epidermis of the leaves, which greatly improves the absorption efficiency of the stomata on the lower surface of the crop leaves for fertilizer nutrients, and greatly promotes the growth of crops in saline-alkali land. This design can reduce the interference of soil salt on fertilizer efficiency. Compared with existing high-pressure or multi-nozzle nozzles, this device has a barrel body 2, a pump body 31 and a liquid outlet pipe. Large-scale direct sprinkler irrigation greatly reduces water consumption and fertilizer waste, achieves the beneficial effect of precise spraying, and is more cost-effective than existing sprinkler fertilization equipment. Since it avoids spraying the fertilizer mixture at high altitudes, it is more environmentally friendly than existing fertilization structures. At the same time, this fertilization equipment also avoids spraying the fertilizer mixture directly on the upper surface of the leaves, resulting in the upper leaf surface being unable to absorb nutrients quickly and comprehensively. Instead, it carries residual salt and dries on the leaf surface as it evaporates, increasing the risk of the upper leaf surface of the crop being covered and affecting normal development and growth. There is even a risk of excessive salt molecules adhering to the upper leaf surface for a long time, which may even damage the crop leaves.
[0024] Specifically, the vehicle body 1 is provided to carry the barrel 2 filled with the fertilizer mixture and other components, providing a mobile basis. The height adjustment component 4 is provided to adapt to the leaf distribution of plants of different heights, so that the fertilizer mixture can be more fully sprayed on the lower surface of the crop leaves. In summary, this fertilization equipment can improve the crop absorption effect and can also have the beneficial effect of avoiding crop damage compared to existing fertilization equipment.
[0025] Further, refer to Figure 4 and Figure 5 , the angle between the two nozzles 32 is 90° to 120°.
[0026] In the above embodiment, by limiting the included angle of the two nozzles 32 to 90° to 120°, the nozzles 32 can spray the mixed liquid obliquely and evenly on the lower leaf surface of the crop, thereby facilitating the lower leaf surface of the crop to efficiently absorb the fertilizer.
[0027] Further, refer to Figure 1 and Figure 6 The two nozzles 32 are connected by a bracket 5 , and the bracket 5 is fixedly connected to the sliding member 42 via a connecting rod 54 .
[0028] In the above embodiment, the two spray heads 32 are fixed by the bracket 5, and when the sliding piece 42 moves longitudinally, the height of the two spray heads 32 changes synchronously, so that the two spray heads 32 can spray the lower leaf surface of crops at different heights.
[0029] Further, referring to Figure 3 , Figure 4 and Figure 6 , the bracket 5 is horizontally provided with a sliding groove 51 extending along the width direction of the vehicle body 1, the sliding groove 51 is slidably connected with a sliding block 52, the spray head 32 penetrates and is fixed to the sliding block 52, and the two spray heads 32 are connected with the spacing adjusting assembly 6 through the sliding block 52.
[0030] In the above embodiment, the spacing adjusting assembly 6 can adjust the spacing between the two spray heads 32, so that the two spray heads 32 can extend to the left and right to spray fertilizer, so that the lower leaf surface of the outer edge of the crops can be fully contacted and absorbed, thereby facilitating the growth of crops. Specifically, the spray head 32 is connected with the sliding block 52, and moves synchronously with the two sliding blocks 52.
[0031] Further, referring to Figure 3 , Figure 4 and Figure 5 , the spacing adjusting assembly 6 comprises a sliding rail 61 and two elastic members 63. The sliding rail 61 extends vertically, is vertically inserted into the middle of the bracket 5 and is slidably connected with the bracket 5, the lower end of the sliding rail 61 is fixed to the vehicle body 1, and the two side walls of the sliding rail 61 near the spray head 32 are symmetrically fixed with a plurality of arc-shaped protrusions 62. The two elastic members 63 are respectively fixed to the side walls of the two sliding blocks 52 away from each other, and the ends of the two elastic members 63 away from each other are respectively fixed to the inner side walls of the bracket 5. When the bracket 5 slides vertically, the two spray heads 32 slide back and forth along the horizontal direction through the contact of the corresponding sliding blocks 52 and the protrusions 62.
[0032] In the above embodiment, the spacing adjusting assembly 6 can use the cooperation of the arc-shaped protrusions 62 and the elastic members 63 to make the sliding block 52 move back and forth along the horizontal direction when the spray head 32 is lifted, so as to expand the horizontal spraying range. The horizontal swing of the spray head 32 can expand the coverage width by about ±30%, so as to adapt to crops with different row distances, and the applicability is wider. The protrusions 62 are made of plastic material and are fixed to the sliding rail 61 by adhesion. In order to improve the service life, the protrusions 62 can also be made of metal material and fixed to the sliding rail 61 by welding.
[0033] Further, referring to Figure 3 , Figure 6 and Figure 7The bracket 5 is hollow and a avoidance groove 53 is vertically opened in the middle thereof corresponding to the protrusion 62.
[0034] In the above embodiment, the avoidance groove 53 can avoid the sliding of the slider 52 and the infusion tube, thereby preventing the slider 52 from causing positional conflict with the structure of the bracket 5 when the slider 52 is displaced.
[0035] Further, refer to Figure 1 、 Figure 2 and Figure 8 The driving part 43 includes: two sprockets 431 and two push rods 432. The center lines of the two sprockets 431 are parallel and the two have the same size. One of the sprockets 431 is sleeved and fixedly connected to the front wheel 12 axis of the vehicle body 1, and the other sprocket 431 is engaged with it and is closer to the front of the vehicle. The two push rods 432 are hinged to the same side of the two sprockets 431 respectively. The two push rods 432 are symmetrically arranged. The upper ends of the push rods 432 are hinged to the sliding member 42. As the wheel rotates, the two push rods 432 simultaneously push upward or pull downward the sliding member 42 under the rotational engagement of the sprocket 431, so that the sliding member 42 slides back and forth up and down along the guide rail 41.
[0036] In the above embodiment, the rotation of the toothed disc 431 drives the push rod 432 to drive the sliding member 42 to slide back and forth in the longitudinal direction, thereby converting the rotational power of the front wheel 12 into driving the sliding member 42 to reciprocate in the vertical direction, thereby realizing the vertical reciprocating motion of the nozzle 32, being able to cover different plant heights and improving the applicability of the spraying application process.
[0037] Further, refer to Figure 1 and Figure 8 The guide rail 41 is a longitudinally arranged rod body, and the sliding member 42 is a plate body, in which a through hole is vertically opened in the middle for the rod body to pass through.
[0038] Further, refer to Figure 4 and Figure 5 The two sliders 52 are placed in the bracket 5 and are connected to a guide wheel 7 on the side close to each other for reducing the friction between the sliders 52 and the protrusions 62.
[0039] In the above embodiment, the guide wheel 7 is provided to replace the direct contact between the slider 52 and the protrusion 62 to generate a larger friction force.
[0040] Further, refer to Figure 1 , the materials of the two infusion tubes are both soft.
[0041] In the above embodiments, by limiting the materials of the two infusion tubes to be soft, the length changes of the height and spacing adjustment can be adapted.
[0042] Furthermore, preferably, in order to further reduce the friction between the wheel surface of the guide wheel 7 and the protrusion 62, a soft rubber layer is provided on the wheel surface of the guide wheel 7.
[0043] In the above embodiment, as the guide wheel 7 moves in the longitudinal direction, its rubber layer will make flexible contact with the protrusion 62, avoiding rigid contact and improving the service life.
[0044] Furthermore, the vehicle body 1 includes a frame 11, two front wheels 12, two rear wheels 13 and a handle 14. The spacing between the two front wheels 12 meets the current conventional planting ridge spacing requirements. Specifically, the vehicle body 1 can be pushed forward by manpower, or conventional speed distribution facilities such as motors and reducers can be installed on the rear wheels 13 to achieve automatic advancement. This embodiment does not make specific limitations. Furthermore, the spacing between the two front wheels 12 or the two rear wheels 13 is smaller than the spacing between the stems of soil crops, which can prevent the vehicle body 1 from causing damage to the crops during the advancement. Furthermore, in order to improve stability, the preferred number of drive parts 43 in this embodiment is two, and the front sides of the two sliding members 42 in the two drive parts 43 are fixedly connected to the rear side wall of the bracket 5 through a connecting rod, and the two groups of drive parts 43 are symmetrically arranged about the middle of the width of the vehicle body 1.
[0045] Specifically, the upper ends of the two guide rails 41 are fixedly connected with horizontal plates, and the other ends of the two plates are inclined and extended toward one side of the upper end of the slide rail 61. The two plates are fixed between each other, and the upper end of the slide rail 61 is fixedly connected to the plate to improve the stability of the slide rail 61. The lower end of the slide rail 61 is also fixedly connected to the frame 11 through a steel plate. The sprocket 431 closer to the front of the vehicle is rotatably connected to the frame 11 through a hinge shaft, and the frame 11 has the beneficial effect of supporting and rotating the sprocket 431.
[0046] Furthermore, the barrel body 2 is located above the rear of the vehicle. Preferably, the wheel diameter of the rear wheel 13 is larger than the wheel diameter of the front wheel 12. The portion of the frame 11 near the rear wheel 13 is tilted upward so that the rear wheel 13 is connected through the wheel axle. Specifically, the barrel body 2 is placed at an angle, and one side of the water outlet is lower, which can facilitate the outflow of the fertilizer mixture. This embodiment provides an auxiliary structure that can prevent the fertilizer from sinking in the mixture. Specifically, the barrel body 2 is connected to the upper rear of the frame 11 through an inclined barrel rack 8. The bottom of the barrel rack 8 is fixedly connected to a plurality of sliding rods 9 extending vertically. The frame 11 is provided with holes at positions corresponding to the sliding rods 9. The sliding rods 9 are inserted into the holes corresponding to each other, and the sliding rods 9 are slidably connected to the frame 11. Each sliding rod 9 is located above the frame 11 and is sleeved with a compression spring 10. The upper and lower ends of the compression spring 10 can be fixedly connected to the barrel frame 8 and the frame 11 respectively, or they can be not fixed. In consideration of stability, this embodiment preferably has a fixed connection. When the vehicle body 1 moves forward, the front wheels 12 and the rear wheels 13 travel on uneven ground, the barrel body 2 will experience longitudinal bumps, so that the undissolved fertilizer residues can continue to mix with water, thereby facilitating the spraying of the fertilizer mixture, and there will be no risk of the nozzle 32 being blocked.
[0047] Furthermore, in order to enable the fertilizer mixture to be sprayed on the lower leaf surface in an all-round and uniform manner as the vehicle body 1 moves forward, an extension pipeline is extended and connected to the lower side of the corresponding slider 52, and the lower end of the extension pipeline is connected to a spray head with the same structure and inclination angle as the nozzle 32. The spray head is closer to the outside than the nozzle 32, which can achieve all-round and efficient spraying of the lower leaf surface, thereby improving the overall growth of crops.
[0048] Usage and working principle: Drive the vehicle body 1 forward, and the front wheel 12 and the rear wheel 13 of the vehicle body 1 rotate. As the front wheel 12 rotates, the gear plate 431 on the shaft of the front wheel 12 can be driven to rotate, and transmitted to the other gear plate 431 through the meshing gear, so that the two gear plates 431 mesh and rotate in opposite directions. At this time, the two push rods 432 move up and down synchronously under the rotation of the gear plate 431, driving the sliding member 42 to rise and fall along the guide rail 41, thereby driving the two nozzles 32 on the bracket 5 to reciprocate in the vertical direction. During the process of the nozzle 32 rising and falling, the bracket 5 moves along the fixed slide rail 61, and the two sliders 52 connecting the two nozzles 32 in the bracket 5 periodically contact or separate with the protrusion 62 on the guide wheel 7 to realize reciprocating sliding in the horizontal direction. The corresponding elastic member 63 is frequently pressurized, and the nozzle 32 moves vertically. It dynamically swings in the vertical and horizontal directions to form a "three-dimensional sweeping spray" mode, covering a wider area of the lower surface of the leaves. Compared with the existing high-pressure or multi-nozzle large-area direct sprinkler irrigation, the device greatly reduces water consumption and fertilizer waste through the arrangement of the barrel body 2, the pump body 31 and the outlet pipe, and achieves the beneficial effect of precise spraying. Compared with the existing sprinkler fertilization equipment, it is more cost-effective. Since it avoids the spraying of the fertilizer mixture at high altitude, it is more environmentally friendly than the existing fertilization structure. At the same time, the fertilizer application equipment also avoids the fertilizer mixture being sprayed directly on the upper surface of the leaves, resulting in the upper leaf surface being unable to absorb nutrients quickly and comprehensively. Instead, it carries residual salt and dries on the leaf surface as it evaporates, increasing the risk of the upper leaf surface of the crop being covered or even damaged by salt.
[0049] The above disclosures are only a few specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.
Claims
1. A fertilizing device for planting crops in saline-alkali land, characterized in that: include: A vehicle body, wherein the vehicle body is equipped with a barrel for filling a fertilizer mixture; a spray assembly disposed on a front side of the vehicle body, the spray assembly comprising a pump body connected to the water outlet of the barrel body, two liquid infusion pipes connected to the water outlet of the pump body, and a spray head connected to the water outlets of the two liquid infusion pipes, wherein the outlets of the two spray heads both extend obliquely upward so that the fertilizer mixture can be sprayed onto the lower surfaces of the leaves of the crops on both sides of the vehicle body; A height adjustment assembly includes a guide rail extending vertically, a sliding member slidably connected to the guide rail, and a driving unit for driving the sliding member to slide up and down. The two nozzles are connected to the sliding member. As the sliding member slides vertically, the two nozzles spray the fertilizer mixture on the lower surfaces of the leaves at different heights. The spacing adjustment component is connected to the two nozzles and reciprocates to adjust the spacing between the two nozzles to increase the spraying range of the fertilizer mixture.
2. A fertilizing device for saline-alkali land crop planting according to claim 1, characterized in that: The angle between the two nozzles is 90° to 120°.
3. A fertilizing device for planting crops in saline-alkali land according to claim 1, characterized in that: The two nozzles are connected via a bracket, and the bracket is fixedly connected to the sliding member via a connecting rod.
4. A fertilizing device for planting crops in saline-alkali land according to claim 3, characterized in that: The bracket is horizontally provided with a slide groove along the width extension direction of the vehicle body, a slider is slidably connected in the slide groove, the nozzle passes through and is fixedly connected to the slider, and the two nozzles are connected to the spacing adjustment component through the slider.
5. A fertilizing device for planting crops in saline-alkali land according to claim 3, characterized in that: The spacing adjustment component includes: A slide rail extends vertically, the slide rail vertically penetrates and is inserted into the middle of the bracket and the two are slidably connected, the lower end of the slide rail is fixedly connected to the vehicle body, and the two side walls of the slide rail near the nozzle are symmetrically fixed with multiple curved protrusions; The two elastic members are respectively fixedly connected to the side walls of the two sliders that are away from each other, and the ends of the two elastic members that are away from each other are respectively fixedly connected to the inner side walls of the bracket. As the bracket slides vertically, the two nozzles slide back and forth relative to each other in the horizontal direction through the contact between the corresponding sliders and the protrusions.
6. A fertilizing device for planting crops in saline-alkali land according to claim 5, characterized in that: The bracket is hollow and a avoidance groove is vertically provided in the middle thereof corresponding to the protrusion.
7. A fertilizing device for planting crops in saline-alkali land according to claim 1, characterized in that: The driving unit includes: Two sprockets, with parallel centerlines and identical dimensions, one of the sprockets being sleeved and fixedly connected to the front wheel axle of the vehicle body, and the other sprocket being engaged with the front wheel axle and closer to the front of the vehicle body; Two push rods are hinged to the same side of the two toothed discs, and the two push rods are symmetrically arranged. The upper ends of the push rods are hinged to the sliding member. As the wheel rotates, the two push rods simultaneously push the sliding member upward or pull the sliding member downward under the rotational meshing action of the toothed discs, so that the sliding member slides back and forth up and down along the guide rail.
8. A fertilizing device for planting crops in saline-alkali land according to claim 7, characterized in that: The guide rail is a rod body arranged longitudinally, and the sliding member is a plate body, wherein a through hole is vertically opened in the middle thereof for the rod body to pass through.
9. A fertilizing device for planting crops in saline-alkali land according to claim 6, characterized in that: The two sliders are placed in the bracket and are both connected to a guide wheel for reducing the friction between the sliders and the protrusions on one side close to each other.
10. The fertilizing device for planting crops in saline-alkali land according to claim 1, characterized in that: The materials of the two infusion tubes are both soft.