Post-seedling weeding and phytotoxicity prevention device for millet

Abstract

The invention relates to the technical field of pesticide spraying, and provides a foxtail millet post-emergence weeding and phytotoxicity prevention device which comprises a support, a pesticide storage tank fixedly connected to the support, a water pump arranged at the top of the pesticide storage tank, a driving assembly arranged on one side, located on the pesticide storage tank, of the support, a pitch changing assembly arranged at the top of the driving assembly, and a base arranged at the bottom of the support. A supporting assembly is arranged on the base; according to the device, the area needing pesticide spraying can be adjusted according to the distance between millet seedlings through the water pipe and the nozzles, the millet seedlings on the two sides are avoided, when the device encounters the ground with the high gradient, the rotating blocks push the fixed rods connected with the rotating blocks, so that the nozzles keep a certain distance from the ground all the time, and when the device encounters high soil blocks, pesticide spraying is conducted. The rotating block is in contact with the soil block and slides to the top of the soil block, so that the spray head automatically avoids the soil block, the spray head cannot be blocked due to collision with the soil block, and the device can be automatically suitable for different furrow depths and widths.

Description

Technical Field

[0001] The invention relates to the technical field of pesticide spraying, in particular to a device for weeding and preventing pesticide damage after millet seedlings. Background Art

[0002] Millet is one of the main food crops in northern my country and has a cultivation history of thousands of years in my country. Weed control in millet fields is one of the important factors affecting millet yield and quality. Manual weeding is time-consuming and labor-intensive, so chemical weeding has become the first choice for millet field weeding. The weeds in the millet seedling stage are particularly serious, affecting and restricting the yield and quality of millet. Millet seedlings are weak and sensitive to herbicides. If applied improperly, weeding after millet seedlings often causes pesticide damage, which has an adverse effect on millet production.

[0003] Although the existing pesticide damage prevention device has a blocking structure, the planting spacing between different millet seedlings is also different, and weeds will grow in the ridges. In order to adapt to the planting spacing and remove the weeds in the ridges, the staff often need to swing the spray rod back and forth. During the swinging process, the pesticide will float onto the millet seedlings with the wind, thereby causing damage to the millet seedlings. Summary of the invention

[0004] The invention provides a millet post-emergence weeding and pesticide damage prevention device to solve the problems raised in the background technology.

[0005] The technical solution of the present invention is as follows:

[0006] A device for weeding and preventing pesticide damage after millet seedlings comprises: a bracket, to which a medicine storage tank is fixedly connected, a water pump is arranged on the top of the medicine storage tank, a driving assembly is arranged on one side of the medicine storage tank on the bracket, a variable distance assembly is arranged on the top of the driving assembly, a base is arranged at the bottom of the bracket, a supporting assembly is arranged on the base, and a roller rolling in a ridge ditch is arranged at the bottom of the base.

[0007] Furthermore, the driving assembly includes an electric telescopic rod fixedly connected to one side of the bracket, and one end of the electric telescopic rod away from the bracket is fixedly connected to a limit plate, and a through slot is provided in the limit plate.

[0008] Furthermore, the pitch changing assembly includes a pitch changing plate fixedly connected to one side of the bracket, the pitch changing plate is located at the top of the electric telescopic rod, a through slot 2 is opened in the pitch changing plate, a plurality of through slots 2 are provided, and the plurality of through slots 2 are fan-shapedly distributed on the pitch changing plate, a sleeve is slidably connected in the through slot 2, the sleeve passes through the through slot 1, and is slidably connected to the through slot 1.

[0009] Furthermore, a water pipe is slidably connected inside the sleeve, the top of the water pipe is a hose and the bottom is a hard pipe, the top of the water pipe is connected to the water pump, the bottom of the water pipe is fixedly connected to a nozzle, and an arc plate is fixedly connected to the water pipe on one side of the nozzle, one end of the arc plate is longer than the length of the nozzle, and the arc plate is semicircular.

[0010] Furthermore, a fixing rod is fixedly connected to the water pipe, and a rotating block is rotatably connected to one end of the fixing rod away from the water pipe. A limiting groove is provided in the end of the water pipe connected to the rotating block, and a square block is fixedly connected to one end of the rotating block connected to the water pipe, and the middle part of the square block is rotatably connected to the middle part of the limiting groove.

[0011] Furthermore, the rotating block is elliptical, and the two ends of the long axis of the ellipse are sharp. The width of the square block is half the width of the limiting groove. When encountering a stone, the rotating block drives the square block to rotate in the limiting groove. The square block can only rotate within a limited position and will not completely rotate to the other side, preventing the rotating block from moving laterally with the device, thereby failing to loosen the soil in the field.

[0012] Furthermore, the supporting assembly includes a gear rotatably connected to the base, a rack 1 is slidably connected to one side of the gear on the base, the gear meshes with the rack 1, and a rack 2 is slidably connected to the other side of the gear on the base, the gear meshes with the rack 2, and circular grooves are provided on the ends of rack 1 and rack 2 away from the gear, a support rod is slidably connected in the circular groove, and a small roller is rotatably connected to the end of the support rod away from the circular groove.

[0013] Furthermore, a card block is provided in the circular groove, and there are several card blocks. A ratchet engaged with the card block is provided on one side of the support rod, and there are several ratchet teeth. The circular groove is V-shaped on the side opposite to the card block. When the support rod slides to a suitable position toward the ground, the card block engages with the ratchet teeth so that the small roller at the bottom of the support rod will not be pushed back by the thrust of the ground during rolling.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention provides a supporting effect for the device through the support rods on both sides, thereby improving the stability of the device and saving the effort used by the staff in the process of pushing the device; when the staff wants to adjust the length of the support rod, they only need to kick the end of the support rod close to the ground with their feet, and the support rod will rotate toward the base, so that the support rod is perpendicular to the circular groove, thereby separating the ratchet and the block. At this time, they only need to push the support rod upward to freely adjust the length of the support rod.

[0016] 2. The present invention can adjust the area requiring spraying according to the spacing between millet seedlings through the water pipe and the nozzle, and avoid the millet seedlings on both sides. When encountering a ground with a higher slope, the rotating block pushes the fixed rod connected thereto, so that the nozzle always maintains a certain distance from the ground. When encountering a higher soil block, the rotating block contacts the soil block and slides to the top of the soil block, so that the nozzle automatically avoids the soil block, and will not be blocked by collision with the soil block, and can automatically adapt to different ridge depths and widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a stereogram of the device of the present invention;

[0018] Figure 2 It is a structural diagram of the device of the present invention;

[0019] Figure 3 The present invention Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 The present invention Figure 2 Enlarged view of point B in the middle;

[0021] Figure 5 It is a square block structure diagram of the device of the present invention;

[0022] Figure 6 It is a structural diagram of the limiting groove of the device of the present invention;

[0023] Figure 7 It is a combined structural diagram of the circular groove and the support rod of the device of the present invention.

[0024] In the figure:

[0025] 1. Bracket; 2. Medicine storage tank; 3. Drive assembly; 31. Electric telescopic rod; 32. Limit plate; 33. Through slot one; 4. Pitch change assembly; 41. Pitch change plate; 42. Through slot two; 43. Sleeve; 431. Water pipe; 4311. Fixed rod; 4312. Rotating block; 4313. Limit slot; 4314. Square block; 432. Nozzle; 433. Arc plate; 5. Base; 6. Support assembly; 61. Gear; 62. Rack one; 63. Rack two; 64. Round groove; 641. Block; 65. Support rod; 651. Ratchet; 66. Small roller; 7. Roller. DETAILED DESCRIPTION

[0026] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] like Figure 1-Figure 7As shown, the present invention provides a millet post-seedling weeding and pesticide damage prevention device, comprising: a bracket 1, to which a medicine storage tank 2 is fixedly connected, a water pump 21 is arranged on the top of the medicine storage tank 2, a driving component 3 is arranged on one side of the medicine storage tank 2 on the bracket 1, a variable pitch component 4 is arranged on the top of the driving component 3, a base 5 is arranged at the bottom of the bracket 1, a supporting component 6 is arranged on the base 5, and a roller 7 rolling in the ridge ditch is arranged at the bottom of the base 5.

[0028] As a technical solution of the present invention, the driving assembly 3 includes an electric telescopic rod 31 fixedly connected to one side of the bracket 1, and the end of the electric telescopic rod 31 away from the bracket 1 is fixedly connected to a limiting plate 32, and the sleeve 43 is pushed to slide in the through groove 2 42 through the limiting plate 32, and a through groove 1 33 is opened in the limiting plate 32.

[0029] As a technical solution of the present invention, the pitch variable assembly 4 includes a pitch variable plate 41 fixedly connected to one side of the bracket 1, the pitch variable plate 41 is located at the top of the electric telescopic rod 31, a through slot 2 42 is opened in the pitch variable plate 41, and a plurality of through slots 2 42 are provided, and the plurality of through slots 2 42 are fan-shaped and distributed on the pitch variable plate 41, a sleeve 43 is slidably connected in the through slot 2 42, and the sleeve 43 passes through the through slot 1 33 and is slidably connected to the through slot 1 33.

[0030] As a technical solution of the present invention, a water pipe 431 is slidably connected in the sleeve 43, the top of the water pipe 431 is a hose and the bottom is a hard pipe, the top of the water pipe 431 is connected to the water pump 21, the bottom of the water pipe 431 is fixedly connected to a nozzle 432, and an arc plate 433 is fixedly connected to the water pipe 431 on one side of the nozzle 432, one end of the arc plate 433 is longer than the length of the nozzle 432, and the arc plate 433 is semicircular, when the nozzle 432 sprays medicine, the arc plate 433 ensures that the medicine liquid is confined to a suitable range, avoiding excessive diffusion of the medicine liquid in windy weather.

[0031] As a technical solution of the present invention, a fixing rod 4311 is fixedly connected to the water pipe 431, and the end of the fixing rod 4311 away from the water pipe 431 is rotatably connected to a rotating block 4312, and a limiting groove 4313 is provided in the end of the water pipe 431 connected to the rotating block 4312, and the end of the rotating block 4312 connected to the water pipe 431 is fixedly connected to a square block 4314, and the middle part of the square block 4314 is rotatably connected to the middle part of the limiting groove 4313.

[0032] As a technical solution of the present invention, the rotating block 4312 is elliptical, and the positions of the two ends of the long axis of the ellipse are sharp. The width of the square block 4314 is half the width of the limiting groove 4313. When encountering stones, the rotating block 4312 drives the square block 4314 to rotate in the limiting groove 4313. The square block 4314 can only rotate within a limited position and will not completely rotate to the other side, preventing the rotating block 4312 from moving laterally with the device, thereby failing to achieve the effect of loosening the soil in the field.

[0033] As a technical solution of the present invention, the support assembly 6 includes a gear 61 rotatably connected to the base 5, a rack 1 62 is slidably connected to one side of the gear 61 on the base 5, the gear 61 is meshed with the rack 1 62, and a rack 2 63 is slidably connected to the other side of the gear 61 on the base 5, the gear 61 is meshed with the rack 2 63, and a circular groove 64 is formed on the ends of the rack 1 62 and the rack 2 63 away from the gear 61, a support rod 65 is slidably connected in the circular groove 64, and a small roller 66 is rotatably connected to the end of the support rod 65 away from the circular groove 64.

[0034] As a technical solution of the present invention, a card block 641 is provided in the circular groove 64, and the card block 641 is provided with a plurality of them. A ratchet 651 meshing with the card block 641 is provided on one side of the support rod 65, and the ratchet 651 is provided with a plurality of them. The circular groove 64 is V-shaped on the side opposite to the card block 641. When the support rod 65 slides to a suitable position toward the ground, the card block 641 meshes with the ratchet 651 so that the small roller 66 at the bottom of the support rod 65 will not be pushed back by the thrust of the ground during rolling.

[0035] Working principle:

[0036] like Figure 1-Figure 4 and Figure 7As shown, when the staff needs to weed the farmland, they push the support rod 65 in contact with the rack 1 62 with their feet, so that the support rod 65 moves to the side away from the gear 61, and the support rod 65 drives the rack 1 62 to move, the rack 1 62 drives the gear 61 to rotate, and the gear 61 drives the rack 2 63 to move in the opposite direction of the rack 1 62, so that the support rods 65 on both sides are synchronously separated from the base 5, and then the support rod 65 slides to the ground by its own gravity, and at this time the ratchet 651 slides on the block 641 until the small roller 66 contacts the ground, the support rod 65 stops sliding, and the block 641 is meshed with the ratchet 651, thereby limiting the sliding back of the support rod 65. The support rods 65 on both sides provide support for the device, improve the stability of the device, and save the staff's effort in pushing the device; when the staff wants to adjust the length of the support rod 65, they only need to kick the end of the support rod 65 close to the ground with their feet, and the support rod 65 will rotate toward the base 5, so that the support rod 65 is perpendicular to the circular groove 64, thereby separating the ratchet 651 from the block 641. At this time, they only need to push the support rod 65 upward to freely adjust the length of the support rod 65.

[0037] like Figure 1-Figure 4 As shown, then, the staff starts the electric telescopic rod 31 and pushes the limit plate 32 to move away from the electric telescopic rod 31, and the limit plate 32 drives the sleeve 43 to slide longitudinally in the through groove 2 42. Since the through groove 2 42 is fan-shaped and distributed on the pitch-changing plate 41, the sleeve 43 approaches each other when sliding in the through groove 2 42, and slides horizontally in the through groove 1 33, so that the water pipe 431 and the nozzle 432 can adjust the area to be sprayed according to the spacing between the millet seedlings and avoid the millet seedlings on both sides. At the same time, the rotating block 4312 contacts the ground. Different rotating blocks 4312 contact the ground at different positions, and the ground slopes at different positions are also different. When encountering a ground with a higher slope, the rotating block 4312 pushes the fixed rod 4311 connected thereto, and the fixed rod 4311 pushes the water pipe 431 connected thereto to slide upward in the sleeve 43, so that the nozzle 432 Always keep a certain distance from the ground. When encountering a higher soil block, the rotating block 4312 contacts the soil block and slides to the top of the soil block, so that the nozzle 432 automatically avoids the soil block, and will not be blocked by the collision with the soil block, and can automatically adapt to different furrow depths and widths; and when the rotating block 4312 slides on the ground, since the rotating block 4312 is elliptical and the positions of the two ends of the long axis of the ellipse are sharp, when the device moves in the field, the soil layer on the surface of the field can be scraped loose, reducing the workload of the staff to loosen the soil, and when the rotating block 4312 encounters a stone, it is forced to rotate sideways, and at this time the rotating block 4312 rotates in the limiting groove 4313, so that the rotating block 4312 avoids the stone; when the nozzle 432 sprays medicine, the arc plate 433 blocks the liquid medicine sprayed by the nozzle 432 to prevent the liquid medicine from splashing on the millet seedlings and causing damage to the millet seedlings.

[0038] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A device for weeding and preventing pesticide damage after millet seedlings, comprising: A bracket (1), a medicine storage tank (2) is fixedly connected to the bracket (1), a water pump (21) is arranged on the top of the medicine storage tank (2), and the characteristic is that: a driving component (3) is arranged on one side of the medicine storage tank (2) on the bracket (1), a variable pitch component (4) is arranged on the top of the driving component (3), a base (5) is arranged at the bottom of the bracket (1), a supporting component (6) is arranged on the base (5), and a roller (7) rolling in the furrow is arranged at the bottom of the base (5).

2. A millet post-emergence weed control and pesticide damage prevention device as claimed in claim 1, characterized in that: The driving assembly (3) comprises an electric telescopic rod (31) fixedly connected to one side of the bracket (1); one end of the electric telescopic rod (31) away from the bracket (1) is fixedly connected to a limit plate (32); a through slot (33) is provided in the limit plate (32).

3. A millet post-emergence weed control and pesticide damage prevention device as claimed in claim 2, characterized in that: The pitch-changing assembly (4) comprises a pitch-changing plate (41) fixedly connected to one side of the bracket (1); the pitch-changing plate (41) is located at the top of the electric telescopic rod (31); a second through slot (42) is provided in the pitch-changing plate (41); a plurality of the second through slots (42) are provided, and the plurality of the second through slots (42) are distributed on the pitch-changing plate (41) in a fan-shaped manner; a sleeve (43) is slidably connected in the second through slot (42); the sleeve (43) passes through the first through slot (33) and is slidably connected to the first through slot (33).

4. A millet post-emergence weed control and pesticide damage prevention device as claimed in claim 3, characterized in that: A water pipe (431) is slidably connected inside the sleeve (43); the top of the water pipe (431) is a soft pipe and the bottom is a hard pipe; the top of the water pipe (431) is connected to the water pump (21); the bottom of the water pipe (431) is fixedly connected to a nozzle (432); and an arc plate (433) is fixedly connected to one side of the water pipe (431) located on the nozzle (432).

5. A millet post-emergence weed control and pesticide damage prevention device as claimed in claim 4, characterized in that: A fixing rod (4311) is fixedly connected to the water pipe (431), and a rotating block (4312) is rotatably connected to one end of the fixing rod (4311) away from the water pipe (431). A limiting groove (4313) is provided in one end of the water pipe (431) connected to the rotating block (4312), and a square block (4314) is fixedly connected to one end of the rotating block (4312) connected to the water pipe (431), and the middle part of the square block (4314) is rotatably connected to the middle part of the limiting groove (4313).

6. A millet post-emergence weed control and pesticide damage prevention device as claimed in claim 5, characterized in that: The rotating block (4312) is elliptical in shape, and the positions of the two ends of the long axis of the ellipse are sharp. The width of the square block (4314) is half the width of the limiting groove (4313).

7. A millet post-emergence weed control and pesticide damage prevention device as claimed in claim 1, characterized in that: The support assembly (6) comprises a gear (61) rotatably connected to the base (5); a rack (62) is slidably connected to one side of the gear (61) on the base (5); the gear (61) meshes with the rack (62); a rack (63) is slidably connected to the other side of the gear (61) on the base (5); the gear (61) meshes with the rack (63); a circular groove (64) is provided at one end of the rack (62) and the rack (63) away from the gear (61); a support rod (65) is slidably connected in the circular groove (64); a small roller (66) is rotatably connected to one end of the support rod (65) away from the circular groove (64).

8. A millet post-emergence weed control and pesticide damage prevention device as claimed in claim 7, characterized in that: A clamping block (641) is arranged in the circular groove (64), and a plurality of clamping blocks (641) are arranged therein; a ratchet (651) meshing with the clamping block (641) is arranged on one side of the support rod (65); a plurality of ratchet teeth (651) are arranged therein; and a side of the circular groove (64) opposite to the clamping block (641) is V-shaped.

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