Foliar spraying device for agricultural plant protection fertilization

Abstract

The invention discloses a leaf surface spraying device for agricultural plant protection fertilization, and relates to the technical field of crop leaf fertilization, the leaf surface spraying device comprises a base, four wheels are mounted on the base, a fertilization box is fixedly connected to one side, close to a handrail, of the top of the base, and a piston air cylinder is mounted at the top of the fertilization box; two fertilization hoses are fixedly connected to the outer surface of the piston air cylinder, arc-shaped fertilization plates are fixedly connected to the ends, away from the piston air cylinder, of the two fertilization hoses, two inserting grooves are formed in the outer surfaces of the two arc-shaped fertilization plates, four spraying heads are arrayed on the inner walls of the two arc-shaped fertilization plates, and a driving assembly is fixedly connected to the outer surface of the wheel. A double-spraying positioning assembly is fixedly connected to the outer surface of the fertilizing box, a shielding assembly is arranged on the base, an adjusting assembly is arranged in the shielding assembly, and natural wind is shielded through a first shielding hopper and a second shielding hopper, so that atomized liquid fertilizer can directly act on leaf surfaces of crops more efficiently; therefore, the problem that natural wind affects foliage dressing of the device is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of crop leaf fertilization, and more specifically, to a foliar spray device for agricultural plant protection and fertilization. Background Art

[0002] When some crops, seedlings, and crop roots age and their absorption capacity weakens, foliar fertilization can be used as an effective supplementary method. At the same time, fertilizing the leaves of crops during their growth process helps to increase yields and improve quality. Therefore, foliar fertilization is an important link in the growth process of crops.

[0003] Most crop planting environments are flat and open without obstructions, and the atomized liquid fertilizer particles are relatively small. However, in the process of foliar fertilization of crops by existing mechanized agricultural foliar spray devices, when there is wind blowing, the water mist-like liquid fertilizer is easily deviated from the leaf surface due to the wind, resulting in the spray device being unable to directly and efficiently apply the liquid fertilizer directly to the leaf surface, affecting the quality of crop foliar fertilization. In addition, different crops not only vary in height, width, and narrowness, but also in the growth mode of their leaves, resulting in the inability to fertilize the leaves at the bottom of some crops. Currently, some use manual pressure to spray the liquid fertilizer in a mist form, and manual pressure easily leads to insufficient air pressure in the storage barrel and ineffective control, resulting in uneven spraying of liquid fertilizer on some crops.

[0004] To solve the above problems, a foliar spray device for agricultural plant protection and fertilization is proposed. Summary of the Invention

[0005] To solve the above technical problems, a foliar spray device for agricultural plant protection and fertilization is provided, and this technical solution solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention can adopt the following technical solutions:

[0007] The present invention provides a foliar spray device for agricultural plant protection and fertilization, including a base. Four wheels are installed on the base. One side of the top of the base near the armrest is fixedly connected with a fertilization box. A piston air pump is installed on the top of the fertilization box. Two fertilization hoses are fixedly communicated with one end of the fertilization box away from the armrest of the base. One end of each of the two fertilization hoses away from the fertilization box is fixedly connected with an arc-shaped fertilization plate. Two slots are opened on the outer surface of each of the two arc-shaped fertilization plates. Four spray heads are arrayed on the inner wall of each of the two arc-shaped fertilization plates. A driving component is fixedly connected to the outer surface of the wheel. A double-spray positioning component is fixedly connected to the outer surface of the fertilization box. A shielding component is arranged on the base, and an adjusting component is arranged inside the shielding component;

[0008] The driving component includes an eccentric rod fixedly connected to the end of the wheel near one side of the piston cylinder. An L-shaped driving rod is sleeved on the outer surface of the eccentric rod, and the L-shaped driving rod is movably connected to the outer surface of the eccentric rod. A connecting seat is movably connected to the outer surface of the end of the L-shaped driving rod far from the eccentric rod.

[0009] Furthermore, the eccentric rod is fixedly connected to the position of the wheel above the center of the circle, and the connecting seat is fixedly connected to the top of the piston cylinder.

[0010] Furthermore, the double-spray positioning component includes two connecting frames fixedly connected to the end of the fertilizer box far from the armrest. Two inserting rods are slidably connected to the outer surfaces of the two connecting frames. There are four inserting rods in total. The tops of the four inserting rods are fixedly connected with baffles. A first spring is arranged between each baffle and the outer surface of the connecting frame, and the two ends of the first spring are fixedly connected between the bottom end of the baffle and the outer surface of the connecting frame respectively.

[0011] Furthermore, arc-shaped grooves are opened on one side of the two connecting frames close to the fertilizer box. The arc-shaped fertilizer plate is slidably connected in the arc-shaped grooves. The inserting slots are matched with the inserting rods, and the first spring is sleeved on the inserting rods.

[0012] Furthermore, the shielding component includes two support rods fixedly connected to the top of the base on the side far from the armrest. A first chute is opened on one side of the two support rods close to each other. A cross bar is slidably connected in the two first chutes together. A second chute is opened in the middle of the rod body of the cross bar. Two sliding rods are slidably connected in the second chute. One sliding rod close to the eccentric rod is fixedly connected to the end far from the cross bar with a first shielding hopper, and the other sliding rod is fixedly connected to the end far from the cross bar with a second shielding hopper.

[0013] Furthermore, an embedding groove is opened on one side of the first shielding hopper close to the second shielding hopper. The second shielding hopper is slidably connected with the embedding groove. The openings of the first shielding hopper and the second shielding hopper are arranged towards the fertilizer box.

[0014] Furthermore, the adjusting component includes a trapezoidal plate slidably connected in the second chute. A trapezoidal groove is opened on the trapezoidal plate. Hook rods are abutted against both sides of the inner wall of the trapezoidal groove. Push rods are abutted against both sides of the outer wall of the trapezoidal plate. An L-shaped push rod is fixedly connected to the end of the trapezoidal plate far from the hook rods. A sawtooth groove is opened on the side of the L-shaped push rod far from the trapezoidal plate. A limiting rod is fixedly connected in one first chute close to the sawtooth groove, and a threaded rod is rotatably connected in the other first chute. An adjusting handle is fixedly connected to the top of the threaded rod.

[0015] Furthermore, the hook rods are fixedly connected to the upper part of the outer surface of the sliding rods, the push rods are fixedly connected to the outer surface of the sliding rods, the cross bar is slidably connected between the limiting rod at one end close to the sawtooth groove and the threaded rod at the other end far from the sawtooth groove.

[0016] Furthermore, the L-shaped push rod is slidably connected between the rod body part located in the serrated groove and the cross bar, a locking groove is opened in the cross bar at the position of the serrated groove, a locking block is slidably connected in the locking groove, a spring 2 is arranged between the locking block and the locking groove, and both ends of the spring 2 are respectively fixedly connected to the locking block and one end close to the locking groove.

[0017] As described above, the characteristics and advantages of the foliar spray device for agricultural plant protection and fertilization in the present invention are:

[0018] Since the arc-shaped fertilizer plate is covered by the shielding bucket 1 and the shielding bucket 2, the purpose of shielding the natural wind is achieved, so that the pressurized atomized liquid fertilizer can be prevented from drifting away by the external natural wind, so that the pressurized atomized liquid fertilizer can be more efficiently and directly applied to the leaves of crops, thereby solving the purpose of natural wind affecting the device to fertilize the leaves;

[0019] When spraying crops planted in the field after seedling raising and crops at different heights, it is necessary to adjust the distance and horizontal height between the shielding bucket 1 and the shielding bucket 2. The distance between the shielding bucket 1 and the shielding bucket 2 is adjusted by pushing and pulling the L-shaped push rod, and the horizontal height of the shielding bucket 1 and the shielding bucket 2 is adjusted by turning the adjustment handle. In this way, the device can adjust the distance and horizontal height between the shielding bucket 1 and the shielding bucket 2 according to different crops, thereby realizing that when the device fertilizes different crops, it can also block natural wind. At the same time, the height adjustment can adapt to the foliar fertilization of crops in seedling raising, avoiding the problem of inability to effectively spray in place due to height problems;

[0020] When spraying pesticides on the leaves of crops, the wheels move in the farmland, and the force of the wheel rotation will be transmitted to the piston cylinder. In this way, during the rotation of the wheels, the piston cylinder can continue this reciprocating motion. At this time, the outside air is compressed and enters the fertilizer box. Due to the limited space inside the fertilizer box, the compressed air will produce a higher air pressure, forming an internal and external pressure difference. Under the action of pressure, the liquid fertilizer in the fertilizer box will enter the arc-shaped fertilizer plate through the fertilizer hose, and finally the liquid fertilizer will be atomized and sprayed on the leaves of crops through the spray head, thereby achieving the purpose of automatically completing the pressurized fertilization of the crop leaves during the movement of the device, saving the user's labor to a certain extent, increasing the development of mechanized agriculture and adapting to crops of different degrees;

[0021] The restriction on the arc-shaped fertilization plate is released by lifting the baffle plates above the two connecting frames, and then the two arc-shaped fertilization plates are rotated to the bottom position of the two connecting frames so that the spray head is upward, and finally the plug rod at the bottom of the connecting frame is inserted into the slot to fix the arc-shaped fertilization plate. In this way, the upward spray head can not only fertilize the bottom leaf surface, but also fertilize the bottom of the leaf surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the overall structure of the foliar spray device for agricultural plant protection and fertilization shown in the present invention;

[0023] Figure 2 Schematic diagram of the drive assembly structure of the foliar spray device for agricultural plant protection and fertilization shown in the present invention;

[0024] Figure 3 Schematic diagram of the double - spray positioning assembly structure of the foliar spray device for agricultural plant protection and fertilization shown in the present invention;

[0025] Figure 4 Schematic diagram of the front - view cross - section structure of the connecting frame of the foliar spray device for agricultural plant protection and fertilization shown in the present invention;

[0026] Figure 5 Schematic diagram of the cross - section structure of the arc - shaped fertilization plate of the foliar spray device for agricultural plant protection and fertilization shown in the present invention;

[0027] Figure 6 Schematic diagram of the adjustment assembly structure of the foliar spray device for agricultural plant protection and fertilization shown in the present invention;

[0028] Figure 7 Schematic diagram of the shielding assembly structure of the foliar spray device for agricultural plant protection and fertilization shown in the present invention;

[0029] Figure 8 Schematic diagram of the cross - section structure of the structural cross - bar and support rod of the foliar spray device for agricultural plant protection and fertilization shown in the present invention;

[0030] Figure 9 Schematic diagram of the internal structure of the structural support rod and the adjustment assembly of the foliar spray device for agricultural plant protection and fertilization shown in the present invention;

[0031] Figure 10 Figure 9 Partial enlarged view of part A;

[0032] Figure 11 Schematic diagram of the positional relationship of the trapezoidal plate, hook rod, abutting rod, L - shaped push rod and sliding rod of the foliar spray device for agricultural plant protection and fertilization shown in the present invention.

[0033] Among them, the reference numerals in the present invention are: 1, base; 2, wheels; 3, fertilization tank; 4, piston air cylinder; 5, fertilization hose; 6, arc - shaped fertilization plate; 7, slot; 8, spray head;

[0034] Drive assembly: 91, eccentric rod; 92, L - shaped drive rod; 93, connecting seat;

[0035] Double - spray positioning assembly: 101, connecting frame; 102, arc - shaped groove; 103, insertion rod; 104, baffle; 105, spring one;

[0036] Shielding assembly: 111, support rod; 112, first chute; 113, cross bar; 114, second chute; 115, locking groove; 116, sliding rod; 117, first shielding hopper; 118, embedding groove; 119, second shielding hopper

[0037] Adjusting assembly: 121, trapezoidal plate; 122, trapezoidal groove; 123, hook rod; 124, abutting rod; 125, L-shaped push rod; 126, serrated groove; 127, limiting rod; 128, threaded rod; 129, adjusting handle

[0038] 14, locking block; 15, second spring Specific implementation mode

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0040] Refer to Figures 1 to Figure 11 As shown, which is an embodiment of the present invention, a leaf spraying device for agricultural plant protection and fertilization provided will be elaborated in detail below:

[0041] A leaf spraying device for agricultural plant protection and fertilization includes a base 1. Four wheels 2 are installed on the base 1. One side of the top of the base 1 close to the armrest is fixedly connected with a fertilization box 3. A piston air cylinder 4 is installed on the top of the fertilization box 3. The piston air cylinder 4 reciprocates. External gas is inhaled into the interior through the one-way intake valve on the piston air cylinder 4, and then air is injected into the fertilization box 3 through the one-way outlet valve on the piston air cylinder 4, thereby increasing the air pressure in the fertilization box 3. This is a mature existing technology and will not be elaborated here. The end of the fertilization box 3 far from the armrest of the base 1 is fixedly communicated with two fertilization hoses 5. The ends of the two fertilization hoses 5 far from the fertilization box 3 are both fixedly connected with arc-shaped fertilization plates 6. Two slots 7 are opened on the outer surfaces of the two arc-shaped fertilization plates 6. Four spray heads 8 are arrayed on the inner walls of the two arc-shaped fertilization plates 6. The liquid fertilizer is atomized and sprayed onto the crop leaves through the spray heads 8, making the liquid fertilizer particles finer and easier to be absorbed by the leaves, thereby improving the utilization rate of the fertilizer. A driving assembly is fixedly connected to the outer surface of the wheel 2. A double-spray positioning assembly is fixedly connected to the outer surface of the fertilization box 3. A shielding assembly is arranged on the base 1, and an adjusting assembly is arranged inside the shielding assembly;

[0042] The driving component includes an eccentric rod 91 fixedly connected to the end of the wheel 2 near one side of the piston cylinder 4. An L-shaped driving rod 92 is sleeved on the outer surface of the eccentric rod 91. The L-shaped driving rod 92 is movably connected to the outer surface of the eccentric rod 91. A connecting seat 93 is movably connected to the outer surface of the end of the L-shaped driving rod 92 away from the eccentric rod 91. The eccentric rod 91 is fixedly connected to a position above the center of the wheel 2. The connecting seat 93 is fixedly connected to the top of the piston cylinder 4. In this way, during the movement of the device, the wheel 2 will transmit power to the piston cylinder 4 through the eccentric rod 91, so that during the movement of the device, the piston cylinder 4 can do work to pressurize the gas into the fertilizer tank 3. When the internal pressure of the fertilizer tank 3 reaches a certain level, the liquid fertilizer inside it is discharged into the fertilizer hose 5 and sprayed out through the spray head 8 to fertilize the leaf surface.

[0043] Furthermore, the double-spray positioning component includes two connecting frames 101 fixedly connected to the end of the fertilizer tank 3 away from the armrest. Two insertion rods 103 are slidably connected to the outer surfaces of the two connecting frames 101. Every two insertion rods 103 are symmetrically slid on the upper and lower sides of each connecting frame 101. A total of four insertion rods 103 are provided. The tops of the four insertion rods 103 are fixedly connected with baffles 104. A first spring 105 is arranged between each baffle 104 and the outer surface of the connecting frame 101. The first spring 105 is sleeved on the insertion rod 103. The two ends of the first spring 105 are fixedly connected between the bottom end of the baffle 104 and the outer surface of the connecting frame 101. An arc-shaped groove 102 is opened on one side of the two connecting frames 101 close to the fertilizer tank 3. The arc-shaped fertilizing plate 6 is slidably connected in the arc-shaped groove 102. The insertion slot 7 matches the insertion rod 103. The two connecting frames 101 play a role in supporting and guiding the arc-shaped fertilizing plate 6. When changing the position of the arc-shaped fertilizing plate 6 in the connecting frame 101, the arc-shaped fertilizing plate 6 can be positioned at a specified position through the insertion rod 103, so that the spray head 8 on the inner wall of the arc-shaped fertilizing plate 6 can face upward to spray liquid fertilizer on the bottom layer and the bottom of the leaf surface.

[0044] Further, the shielding component includes two support rods 111 fixedly connected to the top of the base 1 away from the armrest side. On the side where the two support rods 111 are close to each other, a first chute 112 is provided. A cross bar 113 is slidably connected in the two first chutes 112. A second chute 114 is provided in the middle of the rod body of the cross bar 113. Two sliding rods 116 are slidably connected in the second chute 114. One sliding rod 116 close to the eccentric rod 91 is fixedly connected to one end away from the cross bar 113 with a first shielding hopper 117. The other sliding rod 116 is fixedly connected to one end away from the cross bar 113 with a second shielding hopper 119. An embedding groove 118 is provided on the side of the first shielding hopper 117 close to the second shielding hopper 119. The second shielding hopper 119 is slidably connected with the embedding groove 118. The openings of the first shielding hopper 117 and the second shielding hopper 119 are arranged towards the fertilizing box 3. The first shielding hopper 117 and the second shielding hopper 119 cover the arc-shaped position of the connecting frame 101. In this way, during the fertilizing process of the device, the first shielding hopper 117 and the second shielding hopper 119 can block the natural wind from the outside. In this way, when adjusting the spacing, the second shielding hopper 119 can slide in the embedding groove 118.

[0045] Furthermore, the adjustment component includes a trapezoidal plate 121 slidably connected to the second slide groove 114, a trapezoidal groove 122 is provided on the trapezoidal plate 121, both sides of the inner wall of the trapezoidal groove 122 are against the hook rod 123, both sides of the outer wall of the trapezoidal plate 121 are against the rod 124, an L-shaped push rod 125 is fixedly connected to one end of the trapezoidal plate 121 away from the hook rod 123, a sawtooth groove 126 is provided on the side of the L-shaped push rod 125 away from the trapezoidal plate 121, a limit rod 127 is fixedly connected to one slide groove 112 near the sawtooth groove 126, and the other end is fixedly connected to the limit rod 127. A threaded rod 128 is rotatably connected in the slide groove 112, and an adjustment handle 129 is fixedly connected to the top of the threaded rod 128. The hook rod 123 is fixedly connected to the upper side of the outer surface of the sliding rod 116, and the push rod 124 is fixedly connected to the outer surface of the sliding rod 116. The trapezoidal plate 121 is arranged in a trapezoidal shape, so that both sides of the trapezoidal plate 121 are arranged in an inclined shape, so that the inclination directions of the two sides of the outer wall of the trapezoidal plate 121 are opposite. In addition, the inner wall of the trapezoidal groove 122 is also arranged in a trapezoidal shape, and the inner wall of the trapezoidal groove 122 is arranged in an inclined shape. The inner walls of the trapezoidal groove 122 are inclined in opposite directions, while the outer wall of the trapezoidal plate 121 and the side adjacent to the inner wall of the trapezoidal groove 122 have the same inclination angle and direction. In this way, when the trapezoidal plate 121 slides toward the shielding bucket 117 and the shielding bucket 2 119, the two hook rods 123 will be resisted by the inner walls of the trapezoidal groove 122 and move closer to the trapezoidal plate 121 as the center. At this time, during the sliding process of the two hook rods 123, the sliding rod 116 and the resisting rod 124 will also move relative to each other, and the resisting rod 124 will also always resist the trapezoidal plate 12 1, when the trapezoidal plate 121 moves away from the shielding bucket 117 and the shielding bucket 2 119, the outer walls of the trapezoidal plate 121 on both sides will abut the rod 124, so that the sliding rod 116 and the hook rod 123 slide to both sides with the trapezoidal plate 121 as the center, and at the same time, the hook rod 123 will always abut on both sides of the inner wall of the trapezoidal groove 122, and the end of the cross bar 113 close to the sawtooth groove 126 is slidably connected to the limit rod 127, and the end of the cross bar 113 away from the sawtooth groove 126 is threadedly connected to the threaded rod 128.

[0046] Furthermore, the L-shaped push rod 125 is slidably connected between the rod body part of the serrated groove 126 and the cross bar 113, and a locking groove 115 is opened in the cross bar 113 at the position of the serrated groove 126. A locking block 14 is slidably connected in the locking groove 115, and the end of the locking block 14 in contact with the serrated groove 126 is arranged in an arc shape, so that when the L-shaped push rod 125 moves, the side of the serrated groove 126 can resist the locking block 14 and slide into the locking groove 115, and a spring 2 15 is arranged between the locking block 14 and the locking groove 115, and the two ends of the spring 2 15 are respectively fixedly connected to the locking block 14 and the end close to the locking groove 115.

[0047] Combined with the above embodiments, the following is the entire working process and working principle of the above embodiments:

[0048] The working state is as follows: Since the arc-shaped fertilizing plate 6 is covered by the shielding hopper one 117 and the shielding hopper two 119 inside it, the purpose of shielding natural wind is achieved. In this way, it can prevent the atomized liquid fertilizer from being carried away by the external natural wind, enabling the atomized liquid fertilizer to more efficiently act directly on the crop leaves, thus solving the problem that natural wind affects the device's fertilization of the leaves;

[0049] When it is necessary to increase the distance between the first shielding hopper 117 and the second shielding hopper 119 when spraying pesticides on different crops, the L-shaped push rod 125 is pushed to drive the trapezoidal plate 121 to slide towards the hook rod 123. During the movement of the trapezoidal plate 121, both sides of the inner wall of the trapezoidal groove 122 will abut against the two hook rods 123. In this way, the hook rods 123 will drive the two sliding rods 116 to move closer to the center with the trapezoidal plate 121. Since the two sliding rods 116 are respectively connected to the first shielding hopper 117 and the second shielding hopper 119, and the second shielding hopper 119 also slides in the embedding groove 118 on the first shielding hopper 117, when the two sliding rods 116 move, the first shielding hopper 117 and the second shielding hopper 119 will also move closer to each other, resulting in a smaller distance. Since the end parts of the hook rod 123 and the abutting rod 124 respectively abut against the inner wall of the trapezoidal groove 122 and the outer wall of the trapezoidal plate 121, when the trapezoidal plate 121 slides, the abutting rod 124 and the hook rod 123 always abut against the outer wall of the trapezoidal plate 121 and the inner wall of the trapezoidal groove 122. In this way, when the distance between the first shielding hopper 117 and the second shielding hopper 119 is too large and needs to be adjusted smaller, the L-shaped push rod 125 is pulled to slide away from the hook rod 123. Both sides of the outer wall of the trapezoidal plate 121 will abut against the abutting rod 124, causing the two sliding rods 116 to slide to both sides with the trapezoidal plate 121 as the center. Immediately afterwards, the first shielding hopper 117 and the second shielding hopper 119 will slide to both sides with the trapezoidal plate 121 as the center. In addition, the serrated groove 126 opened on the side of the L-shaped push rod 125 away from the trapezoidal plate 121. During the movement, the side of the concave part of the serrated groove 126 will abut against the locking block 14, causing the locking block 14 to slide away from the serrated groove 126 in the locking groove 115, and at the same time, it will also squeeze and store energy in the second spring 15. When the concave part of the serrated groove 126 is directly opposite to the locking block 14, the locking block 14 will be pushed by the second spring 15 to the concave part of the serrated groove 126 to restrict the L-shaped push rod 125, so that the L-shaped limiting rod cannot move without the push of an external force. After the distance between the first shielding hopper 117 and the second shielding hopper 119 is adjusted, the threaded rod 128 is driven to rotate by turning the adjusting handle 129. At this time, the cross bar 113 will slide in the first chute 112, and at the same time, the horizontal heights of the first shielding hopper 117 and the second shielding hopper 119 will change according to the change of the cross bar 113. In this way, the device can adjust the distance and horizontal height between the first shielding hopper 117 and the second shielding hopper 119 according to different crops, so as to realize that when the device fertilizes different crops, it can also block the natural wind;

[0050] When spraying pesticides on the leaves of crops, the device can be moved in the farmland through the wheel 2. When moving, the wheel 2 will drive the eccentric rod 91 to move in a circle with the wheel 2 as the center. Since the eccentric rod 91 and the L-shaped driving rod 92 are movably connected, during the process of the wheel 2 driving the eccentric rod 91 to move, the end of the L-shaped driving rod 92 connected to the eccentric rod 91 will tilt with the L-shaped driving rod 92 and one end of the connecting seat 93 as the center. When the horizontal height of the eccentric rod 91 is reduced, the end of the L-shaped driving rod 92 connected to the connecting seat 93 will pull the telescopic end of the piston cylinder 4 to slide downward, and when the horizontal height of the eccentric rod 91 becomes higher, the L-shaped driving rod 92 The end connected to the connecting seat 93 will push the telescopic end of the piston cylinder 4 to slide upward, so that the piston cylinder 4 can continue the reciprocating motion to compress the external air and send it into the fertilizer box 3 during the rotation of the wheel 2, forming an internal and external pressure difference. The liquid fertilizer in the fertilizer box 3 will enter the arc-shaped fertilizer plate 6 through the fertilizer hose 5 under the action of pressure, and finally the liquid fertilizer will be atomized and sprayed on the leaves of the crops through the spray head 8, thereby achieving the purpose of automatically completing the pressurized fertilization of the leaves of the crops during the movement of the device, saving the labor of the user to a certain extent, increasing the development of mechanized agriculture and adapting to crops of different degrees;

[0051] When it is necessary to spray the bottom leaf surface of the crop, the baffle 104 above the two connecting frames 101 is pulled up to drive the rod 103 to slide upward, and the end of the rod 103 leaves the slot 7. At this time, the arc-shaped fertilizer plate 6 is released from the restriction, and then the two arc-shaped fertilizer plates 6 are moved along the arc groove 102 to the bottom position of the two connecting frames 101, so that the spray head 8 is upward, and the side edge of the two arc-shaped fertilizer plates 6 close to the bottom of the connecting frame 101 will resist the side edge of the rod 103 when it moves to the bottom position, so that the rod 103 drives the baffle 104 away from the bottom position. When the bottom slot 7 on the outer surface of the arc-shaped fertilizing plate 6 moves to a position corresponding to the insertion rod 103 at the bottom of the connecting frame 101, the spring 105 will be restored, and at the same time, the baffle 104 and the insertion rod 103 will slide in the direction of the arc-shaped slot 102, thereby driving the insertion rod 103 to be inserted into the slot 7, so as to fix the arc-shaped fertilizing plate 6. In this way, the spray head 8 not only realizes the purpose of fertilizing the bottom leaf surface, but also realizes fertilizing the bottom of the leaf surface.

[0052] The above descriptions are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foliar spray device for agricultural plant protection and fertilization, comprising a base (1), four wheels (2) are mounted on the base (1), a fertilizer box (3) is fixedly connected to the top of the base (1) near the handrail, and is characterized in that: A piston cylinder (4) is installed on the top of the fertilizer box (3); one end of the fertilizer box (3) away from the handrail of the base (1) is fixedly connected to two fertilizer hoses (5); one end of the two fertilizer hoses (5) away from the fertilizer box (3) is fixedly connected to an arc-shaped fertilizer plate (6); two slots (7) are provided on the outer surfaces of the two arc-shaped fertilizer plates (6); four spray heads (8) are arranged on the inner walls of the two arc-shaped fertilizer plates (6); a driving component is fixedly connected to the outer surface of the wheel (2); a double-spray positioning component is fixedly connected to the outer surface of the fertilizer box (3); a shielding component is provided on the base (1); and an adjustment component is provided inside the shielding component; The driving assembly comprises an eccentric rod (91) fixedly connected to the end of the wheel (2) on one side close to the piston cylinder (4); an L-shaped driving rod (92) is sleeved on the outer surface of the eccentric rod (91); the L-shaped driving rod (92) is movably connected to the outer surface of the eccentric rod (91); and a connecting seat (93) is movably connected to the outer surface of one end of the L-shaped driving rod (92) away from the eccentric rod (91).

2. The foliar spray device for agricultural plant protection and fertilization according to claim 1, characterized in that: The eccentric rod (91) is fixedly connected to the wheel (2) at a position slightly above the center of the circle, and the connecting seat (93) is fixedly connected to the top of the piston cylinder (4).

3. The foliar spray device for agricultural plant protection and fertilization according to claim 2, characterized in that: The double-spray positioning assembly comprises two connecting frames (101) fixedly connected to one end of a fertilizer box (3) away from a handrail, the outer surfaces of the two connecting frames (101) are slidably connected to two plug rods (103), a total of four plug rods (103) are provided, the tops of the four plug rods (103) are fixedly connected to baffles (104), a spring (105) is provided between each baffle (104) and the outer surface of the connecting frame (101), and the two ends of the spring (105) are respectively fixedly connected to the bottom end of the baffle (104) and the outer surface of the connecting frame (101).

4. The foliar spray device for agricultural plant protection and fertilization according to claim 3, characterized in that: The two connecting frames (101) are both provided with an arc groove (102) on one side close to the fertilizer box (3), the arc fertilizer plate (6) is slidably connected in the arc groove (102), the slot (7) matches the insertion rod (103), and the spring (105) is sleeved outside the insertion rod (103).

5. The foliar spray device for agricultural plant protection and fertilization according to claim 4, characterized in that: The shielding assembly comprises two support rods (111) fixedly connected to the top of the base (1) on a side away from the handrail, a slide groove (112) is provided on the side of the two support rods (111) close to each other, a cross bar (113) is slidably connected in the two slide grooves (112), a slide groove (114) is provided in the middle of the rod body of the cross bar (113), two sliding rods (116) are slidably connected in the slide groove (114), a sliding rod (116) close to the eccentric rod (91) is fixedly connected to a shielding bucket (117) at one end away from the cross bar (113), and another sliding rod (116) is fixedly connected to a shielding bucket (119) at one end away from the cross bar (113).

6. The foliar spray device for agricultural plant protection and fertilization according to claim 5, characterized in that: An embedding groove (118) is provided on one side of the shielding bucket 1 (117) close to the shielding bucket 2 (119), the shielding bucket 2 (119) and the embedding groove (118) are slidably connected, and the openings of the shielding bucket 1 (117) and the shielding bucket 2 (119) are arranged toward the fertilizer box (3).

7. The foliar spray device for agricultural plant protection and fertilization according to claim 6, characterized in that: The adjustment component comprises a trapezoidal plate (121) slidably connected in the second slide groove (114), the trapezoidal plate (121) is provided with a trapezoidal groove (122), both sides of the inner wall of the trapezoidal groove (122) are in contact with hook rods (123), both sides of the outer wall of the trapezoidal plate (121) are in contact with abutment rods (124), one end of the trapezoidal plate (121) away from the hook rod (123) is fixedly connected with an L-shaped push rod (125), a side of the L-shaped push rod (125) away from the trapezoidal plate (121) is provided with a sawtooth groove (126), a limit rod (127) is fixedly connected in one slide groove (112) close to the sawtooth groove (126), a threaded rod (128) is rotatably connected in the other slide groove (112), and an adjustment handle (129) is fixedly connected to the top of the threaded rod (128).

8. The foliar spray device for agricultural plant protection and fertilization according to claim 7, characterized in that: The hook rod (123) is fixedly connected to the upper part of the outer surface of the sliding rod (116), the support rod (124) is fixedly connected to the outer surface of the sliding rod (116), the end of the cross rod (113) close to the sawtooth groove (126) is slidably connected to the limit rod (127), and the end of the cross rod (113) away from the sawtooth groove (126) is threadedly connected to the threaded rod (128).

9. The foliar spray device for agricultural plant protection and fertilization according to claim 8, characterized in that: The L-shaped push rod (125) is slidably connected between the rod body part located in the sawtooth groove (126) and the cross bar (113); a locking groove (115) is provided in the cross bar (113) at the position of the sawtooth groove (126); a locking block (14) is slidably connected in the locking groove (115); a second spring (15) is provided between the locking block (14) and the locking groove (115); two ends of the second spring (15) are respectively fixedly connected to one end of the locking block (14) and the locking groove (115) that is close to the locking block (14).

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