Liquid mulching film spraying device for crop planting

Abstract

The invention relates to the technical field of agricultural machinery, in particular to a crop planting liquid mulching film spraying device which comprises a water tank, a partition plate, a control assembly, a filtering assembly, a spraying assembly and two water baffles, four moving wheels are distributed at the bottom end of the water tank in a rectangular shape, and the partition plate is vertically arranged in the water tank; the partition plate divides the interior of the water tank into a first cavity and a second cavity, a plurality of water passing grooves are formed in the partition plate, the two water baffles are symmetrically arranged in the partition plate, the two water baffles are in sliding fit with the partition plate, one ends of the two water baffles extend to the exterior of the water tank, and the control assembly is installed at the bottom of the water tank. The filtering assembly is installed at the top of the water tank, the spraying assembly is installed on the outer wall of the front side of the water tank, the water spraying end of the spraying assembly can rotate in a reciprocating mode within a certain angle range in the spraying process, and the spraying efficiency of the liquid mulching film is improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a liquid ground film spraying device for crop planting. Background Art

[0002] Biodegradable liquid mulch is made from crop straw and is a polymer material formed by special processing of natural polymer substances such as lignin, collagen, surfactants, and soil water-retaining agents. When used, herbicides can be mixed into it, and 20 to 30 times of water can be added. It can be sprayed directly on the surface of the farmland. It can immediately form an insulating film that is combined with the surface of the soil and is 100% degraded in about 90 days. This layer of biodegradable film can maintain soil moisture and protect field moisture conditions. It can also increase the temperature of the 5-15 cm soil layer by 1 to 6 degrees.

[0003] A Chinese invention patent with announcement number CN116420541A discloses a liquid mulch spraying robot, comprising a vehicle body, a liquid spraying frame movably arranged on the upper part of the vehicle body, and a tire arranged on the bottom; a water pump is installed at the rear end of the liquid spraying frame, and the liquid outlet of the water pump is connected to a liquid spraying pipe arranged at the rear end of the vehicle body through a hose, and a plurality of nozzles are arranged on the liquid spraying pipe, a liquid tank is arranged at the front end of the vehicle body, and a battery is arranged at the rear end, two front tires and two rear tires are respectively connected to motors by shafts, the inner sides of the motor brackets are connected to steering connecting rods, the steering connecting rods are connected to steering motors, and an angle sensor and an angle sensor detection plate are arranged at the bottom of the vehicle body; a main control module is connected to the water pump, the angle sensor and the angle sensor detection plate by signal, and the motor drive module and the remote control are connected to the main control module by signal control. The liquid mulch spraying robot of the invention can replace manual spraying of liquid mulch, has high spraying efficiency, is easy to operate, and saves costs.

[0004] However, the above patent still has the following shortcomings in actual use: the water spraying angle of the nozzle of the patent is always vertically downward, and the spraying range of the nozzle is limited, which affects the spraying efficiency of the liquid ground film. Summary of the invention

[0005] The object of the present invention is to provide a crop planting liquid mulch film spraying device to solve the problem in the above background technology that the spraying angle of the spray head is limited, which affects the spraying efficiency of the liquid mulch film.

[0006] The technical solution of the present invention is:

[0007] A crop planting liquid mulch spraying device comprises a water tank, a partition, a control component, a filter component, a spray component and two water baffles, the bottom end of the water tank is rectangularly distributed with four movable wheels, the partition is vertically arranged inside the water tank, the partition divides the inside of the water tank into a first cavity and a second cavity, a plurality of water flow grooves are arranged on the partition, two water baffles are symmetrically arranged inside the partition, and the two water baffles are slidably matched with the partition, one end of the two water baffles extends to the outside of the water tank, the control component is installed at the bottom of the water tank, and the two ends of the control component are respectively connected to the outer walls of the two water baffles, the filter component is installed at the top of the water tank, and one end of the filter component is connected to the bottom end of the second cavity, the spray component is installed on the front outer wall of the water tank, and one end of the spray component is connected to the filter component.

[0008] Furthermore, the filter assembly includes a filter box, a filter component, a first water pump, a first connecting pipe and a second connecting pipe. The filter box is horizontally arranged on the top of the water tank, the filter component is installed on the filter box, the first water pump is horizontally arranged on the top of the water tank, the two ends of the first connecting pipe are respectively connected to the input end of the first water pump and the bottom end of the second cavity, and the two ends of the second connecting pipe are respectively connected to the output end of the first water pump and the filter box.

[0009] Furthermore, the filtering component includes a lifting plate, two lifting frames, two hydraulic push rods and multiple filter plates, the lifting plate is horizontally arranged above the filter box, the multiple filter plates are arranged at equal intervals at the bottom of the lifting plate, and the bottom ends of the multiple filter plates extend to the inner bottom end of the filter box, the two hydraulic push rods are symmetrically arranged on the top of the water tank, the two lifting frames are symmetrically arranged on the output ends of the two hydraulic push rods, and the two lifting frames are connected to the outer wall of the lifting plate.

[0010] Furthermore, the spray assembly includes a horizontal plate, a rotating motor, a rotating rod, a linkage component, a water supply component, two brackets, two guide rails, two movable frames, two pull rods and two spray components, the two brackets are symmetrically arranged on the front outer wall of the water tank, the horizontal plate is horizontally arranged on the top of the two brackets, the two guide rails are respectively arranged at the bottom of the two brackets, the two movable frames are symmetrically arranged below the two brackets, and the top ends of the two movable frames are slidably matched with the two guide rails, the rotating motor is vertically arranged on the top of the horizontal plate, the rotating rod is installed on the output shaft of the rotating motor, one end of the two pull rods is hinged to the end of the rotating rod, and the other end of the two pull rods is hinged to the top of the two movable frames, the two spray components are respectively arranged on the two movable frames, the linkage component is installed on the front outer wall of the water tank, and the linkage component is used to drive the two spray components to rotate, the water supply component is installed on the top of the water tank, and the two ends of the water supply component are respectively connected to the filter box and the two spray components.

[0011] Furthermore, each of the spraying components includes a transverse tube, an adjusting gear and two adjusting shafts. The two adjusting shafts are rotatably mounted on both sides of the bottom end of the mobile frame, and the end of one of the adjusting shafts extends to the outside of the mobile frame. The two sides of the transverse tube are respectively connected to the two adjusting shafts. A plurality of nozzles arranged at equal intervals are provided at the bottom of the transverse tube. A nozzle is provided at the bottom of the nozzle. The adjusting gear is mounted on the end of one of the adjusting shafts.

[0012] Furthermore, the linkage component includes a reinforcement frame and two linkage racks. The reinforcement frame is horizontally arranged on the front outer wall of the water tank. The two linkage racks are spaced apart at the bottom of the reinforcement frame, and the two linkage racks are respectively meshed with the adjustment gears in the two spraying components.

[0013] Furthermore, the water supply component includes a second water pump, a first water supply pipe, a second water supply pipe and a third water supply pipe. The second water pump is horizontally arranged on the top of the water tank, the two ends of the first water supply pipe are respectively connected to the input end of the second water pump and the filter box, the two ends of the second water supply pipe are respectively connected to the output end of the second water pump and the horizontal pipe in one of the spraying components, and the two ends of the third water supply pipe are respectively connected to the output end of the second water pump and the horizontal pipe in another spraying component.

[0014] Furthermore, the control component includes a control motor, a rotating gear, two control frames and two movable racks. The control motor is vertically arranged at the bottom of the water tank, and the rotating gear is installed on the output shaft of the control motor. The top ends of the two control frames are respectively connected to the outer walls of the two water baffles, and the two movable racks are respectively arranged on the bottom ends of the two control frames, and the two sides of the rotating gear are respectively meshed with the two movable racks.

[0015] Furthermore, two water-adding pipes are symmetrically arranged on the top of the water tank, and the bottom ends of the two water-adding pipes are respectively connected to the first cavity and the second cavity.

[0016] Furthermore, a sealing cover is screwed on the top end of the water adding pipe.

[0017] The present invention provides a crop planting liquid mulch spraying device through improvement, which has the following improvements and advantages compared with the prior art:

[0018] First, the present invention fills the first cavity and the second cavity with water in advance, and then the water tank moves along the direction of the liquid mulch under the action of the moving wheels. During the movement, the filtering component first extracts and filters the water in the second cavity, and the filtered water is sprayed onto the surface of the liquid mulch through the spraying component. During the spraying process, the water spraying end of the spraying component can reciprocate within a certain angle range, thereby increasing the spraying efficiency of the liquid mulch.

[0019] Second: The present invention drives the rotating gear to rotate by controlling the motor, and the rotating gear uses two movable racks to drive the two control frames to move away from each other, and then the two control frames drive the two water baffles to move away from each other. The water in the first cavity flows into the second cavity through multiple water grooves, which facilitates the filtering component to extract and filter the remaining water in the water tank, thereby ensuring the continuity of the spraying work of the spraying component. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0021] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 3 is a partial cross-sectional view of the present invention;

[0024] Figure 4 The three-dimensional structure of the filter assembly of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 5 The three-dimensional structure of the filter assembly of the present invention is shown in FIG. Figure 2 ;

[0026] Figure 6 The three-dimensional structure diagram of the spray assembly of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 7 The three-dimensional structure diagram of the spray assembly of the present invention is shown in FIG. Figure 2 .

[0028] Description of reference numerals:

[0029] Water tank 1, moving wheel 11, first cavity 12, second cavity 13, partition 2, water trough 21, control component 3, control motor 31, rotating gear 32, control frame 33, moving rack 34, filter component 4, filter box 41, filter component 42, first water pump 43, first connecting pipe 44, second connecting pipe 45, lifting plate 46, lifting frame 47, hydraulic push rod 48, filter plate 49, spray component 5, horizontal plate 51, rotating motor 5 2, rotating rod 521, linkage component 53, reinforcement frame 531, linkage rack 532, water supply component 54, second water pump 541, first water supply pipe 542, second water supply pipe 543, third water supply pipe 544, bracket 55, guide rail 56, movable frame 57, pull rod 58, spray component 59, cross pipe 591, adjusting gear 592, adjusting shaft 593, spray pipe 594, spray head 595, water baffle 6, water adding pipe 7, sealing cover 71. DETAILED DESCRIPTION

[0030] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The present invention provides a crop planting liquid mulch spraying device through improvement. Figure 1-Figure 7As shown, it includes a water tank 1, a partition 2, a control component 3, a filter component 4, a spray component 5 and two water baffles 6. The bottom end of the water tank 1 is rectangularly distributed with four moving wheels 11. The partition 2 is vertically arranged inside the water tank 1. The partition 2 divides the inside of the water tank 1 into a first cavity 12 and a second cavity 13. The partition 2 is provided with a plurality of water troughs 21. The two water baffles 6 are symmetrically arranged in the partition 2, and the two water baffles 6 are slidably matched with the partition 2. One end of the two water baffles 6 extends to the outside of the water tank 1. The control component 3 is installed at the bottom of the water tank 1, and the two ends of the control component 3 are respectively connected to the outer walls of the two water baffles 6. The filter component 4 is installed at the top of the water tank 1, and one end of the filter component 4 is connected to the bottom of the second cavity 13. The spray component 5 is installed at the front of the water tank 1. On the side outer wall, and one end of the spray component 5 is connected with the filter component 4; by filling the first cavity 12 and the second cavity 13 with water in advance, and then the water tank 1 moves along the direction of the liquid film under the action of the moving wheel 11, during the walking process, the filter component 4 works to first extract and filter the water in the second cavity 13, and the filtered water is sprayed to the surface of the liquid film through the spray component 5. During the spraying process, the water spraying end of the spray component 5 can reciprocate within a certain angle range to increase the spraying efficiency of the liquid film. When the water in the second cavity 13 is used up, the control component 3 works to drive the two water baffles 6 to move away from each other, and the water in the first cavity 12 flows into the second cavity 13 through multiple water troughs 21, which facilitates the filter component 4 to extract and filter the remaining water in the water tank 1, thereby ensuring the continuity of the spraying work of the spray component 5.

[0032] Specifically, the filter assembly 4 includes a filter box 41, a filter component 42, a first water pump 43, a first connecting pipe 44 and a second connecting pipe 45. The filter box 41 is horizontally arranged on the top of the water tank 1, the filter component 42 is installed on the filter box 41, the first water pump 43 is horizontally arranged on the top of the water tank 1, the two ends of the first connecting pipe 44 are respectively connected to the input end of the first water pump 43 and the bottom end of the second cavity 13, and the two ends of the second connecting pipe 45 are respectively connected to the output end of the first water pump 43 and the filter box 41; the first water pump 43 works to extract the water in the second cavity 13 through the first connecting pipe 44 and the second connecting pipe 45 into the filter box 41, and then the filter component 42 works to filter the impurities in the water in the filter box 41 to ensure the cleanliness of the water sprayed after filtration, thereby ensuring the service life of the liquid ground film.

[0033] Specifically, the filter component 42 includes a lifting plate 46, two lifting frames 47, two hydraulic push rods 48 and multiple filter plates 49. The lifting plate 46 is horizontally arranged above the filter box 41, and the multiple filter plates 49 are arranged at equal intervals at the bottom of the lifting plate 46, and the bottom ends of the multiple filter plates 49 extend to the inner bottom end of the filter box 41. The two hydraulic push rods 48 are symmetrically arranged on the top of the water tank 1, and the two lifting frames 47 are symmetrically arranged on the output ends of the two hydraulic push rods 48, and the two lifting frames 47 are connected to the outer wall of the lifting plate 46; the multiple filter plates 49 can continuously filter the water in the filter box 41. When the multiple filter plates 49 need to be replaced, the two hydraulic push rods 48 work to drive the two lifting frames 47 to move upward, and the two lifting frames 47 drive the lifting plate 46 to move upward, and the lifting plate 46 drives the multiple filter plates 49 to move upward out of the filter box 41, so as to facilitate the rapid replacement of the multiple filter plates 49.

[0034] Specifically, the spray assembly 5 includes a transverse plate 51, a rotating motor 52, a rotating rod 521, a linkage component 53, a water supply component 54, two brackets 55, two guide rails 56, two mobile frames 57, two pull rods 58 and two spray components 59. The two brackets 55 are symmetrically arranged on the front outer wall of the water tank 1, the transverse plate 51 is horizontally arranged at the top of the two brackets 55, the two guide rails 56 are respectively arranged at the bottom of the two brackets 55, the two mobile frames 57 are symmetrically arranged below the two brackets 55, and the top ends of the two mobile frames 57 are slidably matched with the two guide rails 56, the rotating motor 52 is vertically arranged on the top of the transverse plate 51, the rotating rod 521 is installed on the output shaft of the rotating motor 52, one end of the two pull rods 58 is hinged to the end of the rotating rod 521, and the other end of the two pull rods 58 is hinged to the top of the two mobile frames 57, the two spray components 59 are respectively arranged on the two mobile frames 57, and the linkage component 53 is a water supply component. The moving component 53 is installed on the front outer wall of the water tank 1, and the linkage component 53 is used to drive the two spraying components 59 to rotate. The water supply component 54 is installed on the top of the water tank 1, and the two ends of the water supply component 54 are respectively connected with the filter box 41 and the two spraying components 59; the filtered water in the filter box 41 is transported to the two spraying components 59 through the operation of the water supply component 54, and at the same time, the rotating motor 52 drives the rotating rod 521 to reciprocate by a certain angle, and the rotating rod 521 drives the two moving frames 57 to reciprocate horizontally on the two guide rails 56 by two pull rods 58. The two moving frames 57 drive the two spraying components 59 to reciprocate horizontally for a certain distance. At the same time, the linkage component 53 can drive the two spraying components 59 to reciprocate within a certain angle range during the reciprocating horizontal movement of the two spraying components 59, so that the water spraying ends in the two spraying components 59 can realize reciprocating rotation and reciprocating horizontal movement, which greatly increases the spraying efficiency of the liquid ground film.

[0035] Specifically, each of the spraying components 59 includes a transverse tube 591, an adjusting gear 592 and two adjusting shafts 593, the two adjusting shafts 593 are rotatably mounted on both sides of the bottom end of the movable frame 57, and the end of one of the adjusting shafts 593 extends to the outside of the movable frame 57, the two sides of the transverse tube 591 are respectively connected to the two adjusting shafts 593, the bottom of the transverse tube 591 is provided with a plurality of nozzles 594 arranged at equal intervals, the bottom of the nozzle 594 is provided with a nozzle 595, and the adjusting gear 592 is installed on the end of one of the adjusting shafts 593; the water supply component 54 transports water into the transverse tube 591, and then the plurality of nozzles 594 and the nozzle 595 cooperate to spray the water in the transverse tube 591 onto the surface of the liquid ground film, and in the process of the reciprocating horizontal movement of the transverse tube 591, the linkage component 53 uses the adjusting gear 592 to drive the transverse tube 591 and the two adjusting shafts 593 to reciprocate within a certain angle range, and then the nozzle 595 realizes reciprocating rotation to increase its water spraying range.

[0036] Specifically, the linkage component 53 includes a reinforcement frame 531 and two linkage racks 532. The reinforcement frame 531 is horizontally arranged on the front outer wall of the water tank 1. The two linkage racks 532 are spaced apart at the bottom of the reinforcement frame 531, and the two linkage racks 532 are respectively engaged with the adjusting gears 592 in the two spraying components 59; during the reciprocating horizontal movement of the adjusting gears 592 in the two spraying components 59, the two linkage racks 532 drive the adjusting gears 592 in the two spraying components 59 to reciprocate within a certain angle range, so that the nozzle 595 realizes reciprocating rotation.

[0037] Specifically, the water supply component 54 includes a second water pump 541, a first water supply pipe 542, a second water supply pipe 543 and a third water supply pipe 544. The second water pump 541 is horizontally arranged on the top of the water tank 1. The two ends of the first water supply pipe 542 are respectively connected to the input end of the second water pump 541 and the filter box 41. The two ends of the second water supply pipe 543 are respectively connected to the output end of the second water pump 541 and the transverse pipe 591 in one of the spray components 59. The two ends of the third water supply pipe 544 are respectively connected to the output end of the second water pump 541 and the transverse pipe 591 in another spray component 59. The filtered water in the filter box 41 is drawn by the second water pump 541 and flows into the transverse pipe 591 in the two spray components 59 through the first water supply pipe 542, the second water supply pipe 543 and the third water supply pipe 544, thereby achieving the purpose of spraying water supply.

[0038] Specifically, the control component 3 includes a control motor 31, a rotating gear 32, two control frames 33 and two movable racks 34. The control motor 31 is vertically arranged at the bottom of the water tank 1, and the rotating gear 32 is installed on the output shaft of the control motor 31. The top ends of the two control frames 33 are respectively connected to the outer walls of the two water baffles 6, and the two movable racks 34 are respectively arranged on the bottom ends of the two control frames 33, and the two sides of the rotating gear 32 are respectively engaged with the two movable racks 34; the control motor 31 drives the rotating gear 32 to rotate, and the rotating gear 32 drives the two control frames 33 to move away from each other by using the two movable racks 34, and then the two control frames 33 drive the two water baffles 6 to move away from each other, and the water in the first cavity 12 flows into the second cavity 13 through multiple water grooves 21.

[0039] Specifically, two water-adding pipes 7 are symmetrically arranged on the top of the water tank 1 , and the bottom ends of the two water-adding pipes 7 are respectively connected to the first cavity 12 and the second cavity 13 ; the two water-adding pipes 7 facilitate adding water into the first cavity 12 and the second cavity 13 .

[0040] Specifically, a sealing cover 71 is screwed to the top of the water-filling pipe 7 ; the sealing cover 71 seals the top of the water-filling pipe 7 to prevent impurities such as dust from entering the water tank 1 through the water-filling pipe 7 .

[0041] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crop planting liquid mulch spraying device, comprising a water tank (1), a partition (2), a control component (3), a filter component (4), a spraying component (5) and two water baffles (6), wherein the bottom end of the water tank (1) is provided with four moving wheels (11) in a rectangular shape, the partition (2) is vertically arranged inside the water tank (1), the partition (2) divides the inside of the water tank (1) into a first cavity (12) and a second cavity (13), the partition (2) is provided with a plurality of water troughs (21), the two water baffles (6) are symmetrically arranged inside the partition (2), and The two water baffles (6) are slidably matched with the partition (2), one end of the two water baffles (6) extends to the outside of the water tank (1), the control component (3) is installed at the bottom of the water tank (1), and the two ends of the control component (3) are respectively connected to the outer walls of the two water baffles (6), the filter component (4) is installed at the top of the water tank (1), and one end of the filter component (4) is connected to the bottom end of the second cavity (13), and the spray component (5) is installed on the front outer wall of the water tank (1), and one end of the spray component (5) is connected to the filter component (4).

2. A crop planting liquid mulch spraying device according to claim 1, characterized in that: The filter assembly (4) comprises a filter box (41), a filter component (42), a first water pump (43), a first connecting pipe (44) and a second connecting pipe (45); the filter box (41) is horizontally arranged on the top of the water tank (1); the filter component (42) is installed on the filter box (41); the first water pump (43) is horizontally arranged on the top of the water tank (1); the two ends of the first connecting pipe (44) are respectively connected to the input end of the first water pump (43) and the bottom end of the second cavity (13); and the two ends of the second connecting pipe (45) are respectively connected to the output end of the first water pump (43) and the filter box (41).

3. A crop planting liquid mulch spraying device according to claim 2, characterized in that: The filtering component (42) comprises a lifting plate (46), two lifting frames (47), two hydraulic push rods (48) and a plurality of filter plates (49); the lifting plate (46) is horizontally arranged above the filter box (41); the plurality of filter plates (49) are arranged at equal intervals at the bottom of the lifting plate (46); and the bottom ends of the plurality of filter plates (49) extend to the inner bottom end of the filter box (41); the two hydraulic push rods (48) are symmetrically arranged on the top of the water tank (1); the two lifting frames (47) are symmetrically arranged on the output ends of the two hydraulic push rods (48); and the two lifting frames (47) are connected to the outer wall of the lifting plate (46).

4. A crop planting liquid mulch spraying device according to claim 1, characterized in that: The spraying assembly (5) comprises a transverse plate (51), a rotating motor (52), a rotating rod (521), a linkage component (53), a water supply component (54), two brackets (55), two guide rails (56), two movable racks (57), two pull rods (58) and two spraying components (59), wherein the two brackets (55) are symmetrically arranged on the front outer wall of the water tank (1), the transverse plate (51) is horizontally arranged on the top of the two brackets (55), the two guide rails (56) are respectively arranged on the bottom of the two brackets (55), the two movable racks (57) are symmetrically arranged below the two brackets (55), and the top ends of the two movable racks (57) are slidably matched with the two guide rails (56), and the rotating motor (52) is vertically arranged on the top of the horizontal plate (51), the rotating rod (521) is installed on the output shaft of the rotating motor (52), one end of the two pull rods (58) is hinged to the end of the rotating rod (521), and the other end of the two pull rods (58) is hinged to the top of the two moving frames (57), the two spraying components (59) are respectively arranged on the two moving frames (57), the linkage component (53) is installed on the front outer wall of the water tank (1), and the linkage component (53) is used to drive the two spraying components (59) to rotate, the water supply component (54) is installed on the top of the water tank (1), and the two ends of the water supply component (54) are respectively connected to the filter box (41) and the two spraying components (59).

5. A crop planting liquid mulch spraying device according to claim 4, characterized in that: Each of the spraying components (59) comprises a transverse tube (591), an adjusting gear (592) and two adjusting shafts (593). The two adjusting shafts (593) are rotatably mounted on both sides of the bottom end of the movable frame (57), and the end of one of the adjusting shafts (593) extends to the outside of the movable frame (57). Both sides of the transverse tube (591) are respectively connected to the two adjusting shafts (593). The bottom of the transverse tube (591) is provided with a plurality of nozzles (594) arranged at equal intervals. The bottom of the nozzles (594) is provided with a nozzle (595). The adjusting gear (592) is mounted on the end of one of the adjusting shafts (593).

6. A crop planting liquid mulch spraying device according to claim 5, characterized in that: The linkage component (53) comprises a reinforcement frame (531) and two linkage racks (532); the reinforcement frame (531) is horizontally arranged on the front outer wall of the water tank (1); the two linkage racks (532) are arranged at intervals at the bottom of the reinforcement frame (531); and the two linkage racks (532) are respectively meshed with adjustment gears (592) in two spray components (59).

7. A crop planting liquid mulch spraying device according to claim 4, characterized in that: The water supply component (54) comprises a second water pump (541), a first water supply pipe (542), a second water supply pipe (543) and a third water supply pipe (544); the second water pump (541) is horizontally arranged on the top of the water tank (1); the two ends of the first water supply pipe (542) are respectively connected to the input end of the second water pump (541) and the filter box (41); the two ends of the second water supply pipe (543) are respectively connected to the output end of the second water pump (541) and a transverse pipe (591) in one of the spray components (59); and the two ends of the third water supply pipe (544) are respectively connected to the output end of the second water pump (541) and a transverse pipe (591) in another spray component (59).

8. The crop planting liquid mulch spraying device according to claim 1, characterized in that: The control assembly (3) comprises a control motor (31), a rotating gear (32), two control racks (33) and two movable racks (34); the control motor (31) is vertically arranged at the bottom of the water tank (1); the rotating gear (32) is mounted on the output shaft of the control motor (31); the top ends of the two control racks (33) are respectively connected to the outer walls of the two water baffles (6); the two movable racks (34) are respectively arranged on the bottom ends of the two control racks (33); and the two sides of the rotating gear (32) are respectively meshed with the two movable racks (34).

9. A crop planting liquid mulch spraying device according to claim 1, characterized in that: Two water-adding pipes (7) are symmetrically arranged on the top of the water tank (1), and the bottom ends of the two water-adding pipes (7) are respectively connected to the first cavity (12) and the second cavity (13).

10. A crop planting liquid mulch spraying device according to claim 9, characterized in that: A sealing cover (71) is screwed onto the top end of the water adding pipe (7).

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