A protective film laying device for agricultural vegetable planting

Abstract

The present invention relates to the field of agricultural planting technology, and in particular to a protective film laying device for agricultural vegetable planting, including a frame, the number of which is two, the front and rear sides of the bottom of the frame are connected to wheels through a rotating shaft, an inclined plate is connected between the tops of the two frames, and two guide plates are symmetrically connected to the tops of the inclined plates, and shells are installed on the rear sides of the tops of the two frames in an inclined manner. The two shells are respectively located on the rear sides of the two guide plates, and a soil conveying mechanism for conveying soil to the guide plates is provided in the shells, and an adjustment mechanism is provided between the two frames. The spacing between the two inverted U-shaped sliders can be adjusted by a bidirectional screw rod I, so that the spacing between the left and right groups of guide cloths can be adjusted, and the position of the soil falling on both sides can be adjusted by adjusting the spacing between the left and right groups of guide cloths, so as to adjust the position of the protective film covering the soil, so as to adapt to ridges of different widths, and the flexibility is strong.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural planting, and in particular to a protective film laying device for agricultural vegetable planting. Background Art

[0002] In order to increase ground temperature, retain moisture, improve soil fertility, inhibit weed growth and enhance inter-plant light, thereby providing better environmental conditions for the growth of vegetables, promoting the healthy growth of vegetables and increasing production and income, it is necessary to lay protective film (ground film) on the vegetable field.

[0003] After searching, the patent publication number is: CN111837770A, a patent for rapid laying of protective film for agricultural vegetable planting, including a frame, the number of frames is two groups, and the frames are provided with mounting frames, and one side of the mounting frame is a structure with an opening; a fixed frame, the fixed frame is arranged between one side of the frame, and the fixed frame is provided with two groups of guide plates at the position facing the other side.

[0004] Although the above patent can automatically lay the protective film on the ridge and complete the soil covering operation of the protective film, in actual agricultural production, the width of the ridge may vary depending on the plot, crop and planting method. Therefore, it is necessary to adjust the soil covering position of the protective film according to the width of the ridge to ensure that the soil is covered on both sides of the ridge to press the protective film close to the ground and avoid the soil pressing on the crops to hinder the normal growth of the crops. The above patent cannot adjust the soil covering position of the protective film according to the width of the ridge and lacks flexibility, which can easily lead to unstable fixation of the protective film and direct coverage of the soil on the crops, resulting in restricted crop growth. Summary of the invention

[0005] The object of the present invention is to provide a protective film laying device for agricultural vegetable planting, which can adjust the soil covering position of the protective film according to the width of the ridge in order to solve the above-mentioned problems.

[0006] The present invention achieves the above-mentioned purpose through the following technical scheme: a protective film laying device for agricultural vegetable planting, including a frame, the number of the frames is two, the front and rear sides of the bottom of the frame are connected to wheels through a rotating shaft, a push rod is connected between the front sides of the two frames, an inclined plate is connected between the tops of the two frames, two guide plates are symmetrically connected to the tops of the inclined plates, shells are obliquely installed on the rear sides of the tops of the two frames, the two shells are respectively located on the rear sides of the two guide plates, a sleeve rod is rotatably connected to the frame on the right, the sleeve rod is located at the rear and lower part of the inclined plate, a soil conveying mechanism for conveying soil to the guide plate is provided in the shell, the two soil conveying mechanisms are respectively connected to the rear rotating shafts on the two frames, and the rear sides of the outer walls on the left and right sides of the shell are rotatably connected to rings, connecting A shovel plate is connected between two circular rings connected to the same shell, and the shovel plate is used to scoop up soil and transport it to the soil conveying mechanism. A locking assembly for locking the circular ring is provided on the outside of the shell. An adjustment mechanism is provided between the two frames, and the adjustment mechanism includes two connecting plates respectively connected to the front sides of the tops of the two frames, and two left and right inverted U-shaped sliders are slidably connected between the two connecting plates through a guide rod Ⅰ, and a two-way screw rod Ⅰ is rotatably connected between the two connecting plates, and the two-way screw rod Ⅰ is threadedly connected to the inverted U-shaped slider, and two guide cloths are symmetrically connected to the rear side of the inverted U-shaped slider, and two winding drums are symmetrically rotatably connected to the front side of the guide plate, and four guide cloths correspond to the four winding drums one by one, and the guide cloths are wound around the corresponding winding drums, and a vortex spring is connected between the winding drum and the guide plate.

[0007] Preferably, the locking assembly includes a mounting plate connected between the rear sides of the two shells, the mounting plate is rotatably connected to the left and right worms, the two middle rings are connected to worm wheels, and the two worm wheels are respectively engaged with the two worms.

[0008] Preferably, the soil conveying mechanism includes two front and rear connecting shafts rotatably connected to the shell, a conveyor belt is arranged between the front and rear connecting shafts through a pulley, the conveyor belt is located in the shell, baffles are connected to the conveyor belt at intervals along its motion trajectory, a transmission shaft is rotatably connected to the rear side of the frame, the transmission shaft is located on the upper side of the rear rotating shaft, the transmission shaft and the rear rotating shaft are connected through a gear set, and the transmission shaft and the rear connecting shaft are connected through a belt transmission assembly I.

[0009] Preferably, a positioning mechanism is provided between the two frames, and the positioning mechanism includes vertical plates respectively connected to the two frames, the vertical plates are located behind the sleeve rod, and two left and right slides are slidably connected between the two vertical plates through a guide rod II, and a pull rod capable of moving forward and backward is slidably connected to the slide, a spring I is connected between the pull rod and the slide, an arc-shaped positioning block is connected to the front side of the pull rod, and the arc-shaped positioning block is sleeved on the sleeve rod, a bidirectional screw rod II is rotatably connected between the two vertical plates, and the bidirectional screw rod II is threadedly connected to the slide.

[0010] Preferably, a guiding mechanism is provided between the two frames, and the guiding mechanism includes an arc-shaped guide plate connected between the two frames, the arc-shaped guide plate is located below the inclined plate, an inverted U-shaped clamping plate capable of moving forward and backward is slidably connected to the arc-shaped guide plate, a spring II is connected between the inverted U-shaped clamping plate and the arc-shaped guide plate, a clamping plate capable of moving up and down is slidably connected inside the inverted U-shaped clamping plate, a rotating shaft is rotatably connected between the two frames, the rotating shaft is located on the front side of the arc-shaped guide plate, left and right winding wheels are connected to the rotating shaft, a pull rope is wound around the winding wheel, and the pull rope passes through the inverted U-shaped clamping plate and is connected to the clamping plate.

[0011] Preferably, a hole opening mechanism is provided on the inclined plate, and the hole opening mechanism includes a guide rod III and a lifting plate. The top front side of the inclined plate is slidably connected to the lifting plate through the guide rod III, and the bottom of the lifting plate is connected to two groups of left and right plug rods. The inclined plate and the arc-shaped guide plate are both provided with two groups of left and right through holes for the plug rods to slide up and down, and a driving component for driving the lifting plate to move up and down is provided on the right frame.

[0012] Preferably, the driving assembly includes a rotating rod rotatably connected to the top of the right frame, the rotating rod is connected to the front rotating shaft on the right frame through a belt drive assembly II, a straight groove is opened on the right side of the lifting plate, a disc is connected to the left end of the rotating rod, a shifting rod is connected to the offset position of the disc, and the shifting rod is located in the straight groove.

[0013] Preferably, two left and right guide plates are connected to the top of the inclined plate, and the two guide plates are located between the two guide plates. The rear side of the guide plate is bent toward the direction close to the adjacent guide plate, and the bent part of the guide plate extends into the adjacent guide plate. The sides of the two guide plates close to each other are each provided with an opening for soil to flow out and slide into between the two guide plates.

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

[0015] 1. The distance between the two inverted U-shaped sliders can be adjusted through the bidirectional screw rod I, so that the distance between the left and right groups of guide cloths can be adjusted. By adjusting the distance between the left and right groups of guide cloths, the position of the soil falling on both sides can be adjusted to adjust the position of the protective film covering the soil to adapt to ridges of different widths. It has strong flexibility, ensuring that the soil is accurately covered on both sides of the ridge to fix the protective film firmly, and can avoid directly covering the soil on the crops to restrict the growth of the crops.

[0016] 2. The distance between the two arc-shaped positioning blocks on the left and right can be adjusted through the bidirectional screw rod II to adapt to protective films of different specifications. The protective film can be positioned through the two arc-shaped positioning blocks to avoid the left and right shaking and deviation of the protective film on the sleeve rod when it is rotated and released, thereby improving the laying accuracy of the protective film and ensuring that the protective film can be accurately covered on the ridge.

[0017] 3. When the frame of the present invention moves to cover the film, it can drive the rod to move back and forth downward and upward to open air holes on the protective film, so as to improve soil aeration, meet the breathing needs of seeds and seedlings, promote soil microbial activity, and thus promote the healthy growth of crops.

[0018] 4. The guide plate can be used to guide the soil to cover the middle of the protective film, so that the protective film can be closely attached to the soil surface to fix the protective film more firmly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the soil conveying mechanism of the present invention.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the adjustment mechanism of the present invention.

[0022] Figure 4 The figure is a schematic diagram of the connection of the guide plate, the winding drum, the guide cloth and the scroll spring of the present invention.

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the positioning mechanism of the present invention.

[0024] Figure 6 It is a schematic diagram of the installation of the guiding mechanism of the present invention.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the guiding mechanism of the present invention.

[0026] Figure 8 It is a partial three-dimensional structural schematic diagram of the guiding mechanism of the present invention.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the hole opening mechanism of the present invention.

[0028] Fig.10 It is a partial three-dimensional structural schematic diagram of the hole opening mechanism of the present invention.

[0029] In the figure: 1-frame, 2-rotating shaft, 21-push rod, 3-wheel, 4-inclined plate, 5-guide plate, 6-housing, 7-sleeve rod, 8-ring, 9-shovel plate, 101-mounting plate, 102-worm, 103-worm wheel, 111-connecting shaft, 112-conveyor belt, 113-baffle, 114-drive shaft, 115-gear set, 116-belt drive assembly I, 121-connecting plate, 122-guide rod I, 123-inverted U-shaped slider, 124-bidirectional screw I, 125-winding drum, 126-guide cloth, 127-volute spring, 1 31-vertical plate, 132-guide rod II, 133-slide plate, 134-pull rod, 135-spring I, 136-arc positioning block, 137-bidirectional screw II, 141-arc guide plate, 142-rotating shaft, 143-winding wheel, 144-pull rope, 145-inverted U-shaped clamping plate, 146-clamping plate, 147-spring II, 151-guide rod III, 152-lifting plate, 153-insertion rod, 154-rotating rod, 155-belt drive assembly II, 156-disc, 157-shift rod, 158-slot, 16-guide plate, 17-opening. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0031] A protective film laying device for agricultural vegetable planting, see Figure 1-Figure 4, including a frame 1, the number of frames 1 is two, the front and rear sides of the bottom of the frame 1 are connected to wheels 3 through a rotating shaft 2, a push rod 21 is connected between the front sides of the two frames 1, an inclined plate 4 with a top that is low in the front and high in the rear is connected between the tops of the two frames 1, and two guide plates 5 are symmetrically connected to the top of the inclined plate 4. The rear sides of the tops of the two frames 1 are both installed with shells 6 in an inclined manner with a high front and a low rear. The two shells 6 are respectively located at the rear sides of the two guide plates 5. A sleeve rod 7 is rotatably connected to the frame 1 on the right side, and the sleeve rod 7 is located at the rear and lower part of the inclined plate 4. A soil conveying mechanism for conveying soil to the guide plate 5 is provided in the shell 6. The two soil conveying mechanisms are respectively connected to the rear rotating shafts 2 on the two frames 1 in a driving manner. The outer walls on the left and right sides of the shell 6 The rear sides of the two shells 6 are rotatably connected with a circular ring 8, and a shovel plate 9 is connected between the two circular rings 8 connected to the same shell 6. The shovel plate 9 is used to scoop up soil and transport it to the soil conveying mechanism. The width of the shovel plate 9 gradually decreases along its length, and the width of the shovel plate 9 close to the circular ring 8 is greater than the width of the shovel plate 9 away from the circular ring 8, so that the soil can be shoveled more smoothly and quickly. The outside of the shell 6 is provided with a locking assembly for locking the circular ring 8, and the locking assembly includes a mounting plate 101 connected between the rear sides of the two shells 6, and the mounting plate 101 is rotatably connected with two left and right worms 102, and the two middle circular rings 8 are connected with worm wheels 103, and the two worm wheels 103 are respectively engaged with the two worms 102, and an adjustment mechanism is provided between the two frames 1.

[0032] See also Figure 1-Figure 2 The soil conveying mechanism includes two front and rear connecting shafts 111 rotatably connected to the housing 6, and the height of the rear connecting shaft 111 is lower than the height of the front connecting shaft 111. A conveyor belt 112 is sleeved between the front and rear connecting shafts 111 through a pulley. The conveyor belt 112 is located in the housing 6. Baffles 113 are connected to the conveyor belt 112 at intervals along its motion trajectory. The rear side of the frame 1 is rotatably connected to a transmission shaft 114, which is located on the upper side of the rear rotating shaft 2. The transmission shaft 114 is connected to the rear rotating shaft 2 through a gear set 115, and the gear set 115 consists of two gears, and the two gears are respectively connected to the transmission shaft 114 and the rear rotating shaft 2, and the two gears are meshed. The transmission shaft 114 and the rear connecting shaft 111 are connected through a belt transmission component I116, and the belt transmission component I116 is connected by two pulleys and a flat belt. The two pulleys are respectively connected to the transmission shaft 114 and the rear connecting shaft 111, and the flat belt is sleeved between the two pulleys.

[0033] See also Figure 3-Figure 4The adjustment mechanism includes two connecting plates 121 respectively connected to the front sides of the tops of the two frames 1, two left and right inverted U-shaped sliders 123 are slidably connected between the two connecting plates 121 through a guide rod Ⅰ122, a bidirectional screw rod Ⅰ124 is rotatably connected between the two connecting plates 121, the bidirectional screw rod Ⅰ124 is located on the front side of the guide rod Ⅰ122, the bidirectional screw rod Ⅰ124 is threadedly connected to the inverted U-shaped slider 123, two guide cloths 126 are symmetrically connected to the rear side of the inverted U-shaped slider 123, two winding drums 125 are symmetrically rotatably connected to the front side of the guide plate 5, four guide cloths 126 correspond to four winding drums 125 one by one, the guide cloth 126 is wound around the corresponding winding drum 125, and the rear end of the guide cloth 126 is fixedly connected to the corresponding winding drum 125, and a spiral spring 127 is connected between the winding drum 125 and the guide plate 5.

[0034] First, put the protective film on the sleeve rod 7, then pull the end of the protective film out from the bottom of the inclined plate 4 and pull it forward to cover the ridge, then use the soil to press and fix the end of the protective film, then rotate the worm 102 to drive the worm wheel 103 to drive the ring 8 to rotate, so that the shovel plate 9 can be rotated to insert downward into the soil, and then when the frame 1 moves to cover the film, the soil is scooped up by the shovel plate 9 and transported to the conveyor belt 112. When shoveling the soil without making the shovel plate 9 contact with the ground, reverse the worm 102 to drive the worm wheel 103 to drive the ring 8 to reverse, so that the shovel plate 9 can be reversed to face upward and separate from the ground. When the frame 1 moves to cover the film, the wheels 3 on it drive the rotating shaft 2 to rotate accordingly. The rear rotating shaft 2 on the frame 1 rotates and drives the transmission shaft 114 to rotate through the gear set 115. The transmission shaft 114 rotates and drives the rear connecting shaft 111 on the shell 6 to rotate through the belt transmission component I116, so that the conveyor belt 112 drives the baffle 113 to rotate and transport the soil to the guide plate 5. Through the cooperation of the left and right guide plates 5 and the left and right groups of guide cloths 126, the soil can be guided downward to both sides of the ridge, so that the soil is covered on both sides of the ridge to press and fix the protective film. The spacing between the left and right groups of guide cloths 126 can be adjusted according to the width of the ridge. The spacing between the two inverted U-shaped sliders 123 can be adjusted by rotating the bidirectional screw rod Ⅰ124, so as to adjust the spacing between the left and right groups of guide cloths 126. When the left and right groups of guide cloths 126 move away from each other, the winding drum 125 rotates to release the guide cloth 126, and the spiral spring 127 is compressed accordingly. When the left and right groups of guide cloths 126 approach each other, under the reset action of the spiral spring 127, the winding drum 125 reverses and winds up the guide cloth 126, so as to ensure that the guide cloth 126 always remains in a taut state; by adjusting the spacing between the left and right groups of guide cloths 126, the position where the soil on both sides falls can be adjusted, so as to realize the adjustment of the covering position of the protective film to adapt to ridges of different widths. It has strong flexibility, ensures that the soil is accurately covered on both sides of the ridge to fix the protective film firmly, and can avoid directly covering the soil on the crops to restrict the growth of the crops.

[0035] Refer to Figure 5 , a positioning mechanism is provided between the two vehicle frames 1. The positioning mechanism includes vertical plates 131 respectively connected to the two vehicle frames 1. The vertical plates 131 are located behind the sleeve rod 7. Two left and right sliding plates 133 are slidably connected between the two vertical plates 131 through a guide rod II 132. A pull rod 134 capable of moving back and forth is slidably connected to the sliding plate 133. The shape of the pull rod 134 is in the shape of a double-square. Two spring I 135 are symmetrically connected up and down between the pull rod 134 and the sliding plate 133. An arc-shaped positioning block 136 is connected to the front side of the pull rod 134. The arc-shaped positioning block 136 is sleeved on the sleeve rod 7. A two-way lead screw II 137 is rotatably connected between the two vertical plates 131. The two-way lead screw II 137 is located above the guide rod II 132. The two-way lead screw II 137 is threadedly connected to the sliding plate 133.

[0036] When the protective film is to be sleeved on the sleeve rod 7, pull the left pull rod 134 backward so that the left arc-shaped positioning block 136 moves backward to avoid the left arc-shaped positioning block 136 hindering the sleeving of the protective film on the sleeve rod 7. The left pull rod 134 moves backward to compress the spring I 135. After the protective film is sleeved on the sleeve rod 7, release the left pull rod 134. Under the reset action of the spring I 135, the left pull rod 134 can drive the left arc-shaped positioning block 136 to move forward and reset to be sleeved on the sleeve rod 7. Then, the two-way lead screw II 137 can be rotated to make the two sliding plates 133 approach each other, so that the left and right arc-shaped positioning blocks 136 can approach each other to push the protective film to move to the center, and the protective film can be positioned by the two arc-shaped positioning blocks 136 to avoid the left and right shaking and deviation when the protective film is rotated and released on the sleeve rod 7, thereby improving the laying accuracy of the protective film and ensuring that the protective film can accurately cover the ridge.

[0037] Refer to Figure 6-Figure 8 , a guiding mechanism is provided between the two vehicle frames 1. The guiding mechanism includes an arc-shaped guide plate 141 connected between the two vehicle frames 1. The arc-shaped guide plate 141 is located below the inclined plate 4. An inverted U-shaped clamping plate 145 capable of moving back and forth is slidably connected to the arc-shaped guide plate 141. A spring II 147 is connected between the inverted U-shaped clamping plate 145 and the arc-shaped guide plate 141. A clamping plate 146 capable of moving up and down is slidably connected to the inverted U-shaped clamping plate 145 through a chute. A rotating shaft 142 is rotatably connected between the two vehicle frames 1. The rotating shaft 142 is located in front of the arc-shaped guide plate 141. Two winding wheels 143 are connected to the rotating shaft 142. The two winding wheels 143 are located outside the arc-shaped guide plate 141. A pulling rope 144 is wound around the winding wheel 143. The pulling rope 144 passes through the inverted U-shaped clamping plate 145 and is connected to the clamping plate 146.

[0038] The end of the protective film is pulled out and placed into the inverted U-shaped clamp 145, and the rotating shaft 142 is rotated to drive the winding wheel 143 to rotate the winding rope 144. Under the pulling action of the rope 144, the clamping plate 146 moves up and cooperates with the inverted U-shaped clamp 145 to clamp the end of the protective film. After the clamping plate 146 moves up to the limit, the winding wheel 143 continues to reel in the rope 144 to pull the clamping plate 146 and the inverted U-shaped clamp 145 to move forward, and the spring II 147 is compressed accordingly, thereby pulling the end of the protective film forward from the bottom of the inclined plate 4, so that the protective film can be pulled out from the bottom of the inclined plate 4 for coating; the rotating shaft 142 is released, and under the action of gravity, the clamping plate 146 moves down to release the protective film, and under the resetting action of the spring II 147, the inverted U-shaped clamp 145 can be pushed to drive the clamping plate 146 to move backward and reset, and the rope 144 is pulled out accordingly.

[0039] See also Figure 9-10 The inclined plate 4 is provided with a hole opening mechanism, which includes a guide rod III 151 and a lifting plate 152. The top front side of the inclined plate 4 is slidably connected to the lifting plate 152 through the guide rod III 151. The bottom of the lifting plate 152 is connected to two groups of left and right plug rods 153. The number of each group of plug rods 153 is three, and the three plug rods 153 in each group are arranged at intervals from front to back. The bottom end of the plug rod 153 is sharp, which can more smoothly and quickly open air holes on the protective film. The inclined plate 4 and the arc-shaped guide plate 141 are both provided with two groups of left and right through holes for the plug rods 153 to slide up and down. The number of each group of through holes is three, and the three through holes in each group are arranged at intervals from front to back. The right side of the frame 1 is provided with a A driving assembly 152 moves up and down, and the driving assembly includes a rotating rod 154 rotatably connected to the top of the right frame 1, and the rotating rod 154 is connected to the front rotating shaft 2 on the right frame 1 through a belt transmission assembly II 155. The belt transmission assembly II 155 consists of two pulleys and a flat belt, one of which is connected to the right side of the rotating rod 154, and the other pulley is connected to the front rotating shaft 2 on the right frame 1, and the flat belt is sleeved between the two pulleys. A straight groove 158 is opened on the right side of the lifting plate 152, and a disc 156 is connected to the left end of the rotating rod 154. A lever 157 is connected to the offset position of the left side of the disc 156, and the lever 157 is located in the straight groove 158.

[0040] When the frame 1 moves to cover the film, the wheels 3 on it drive the shaft 2 to rotate accordingly. The front shaft 2 on the right frame 1 rotates and drives the rotating rod 154 to rotate through the belt transmission component Ⅱ155, so that the disc 156 drives the lever 157 to rotate to push the lifting plate 152 to move back and forth downward and upward, so that the insertion rod 153 can move back and forth downward and upward to open air holes on the protective film to improve soil permeability, meet the breathing needs of seeds and seedlings, promote soil microbial activity, and thus promote the healthy growth of crops. Removing the flat belt on the belt transmission component Ⅱ155 from the pulley will not open holes in the protective film.

[0041] See also Figure 6 and Fig. 9 The top of the inclined plate 4 is connected to two left and right guide plates 16, which are located between the two guide plates 5. The rear side of the guide plate 16 is bent toward the direction of the adjacent guide plate 5, and the bent part of the guide plate 16 extends into the adjacent guide plate 5. The two guide plates 5 are close to each other on one side and are provided with an opening 17 for soil to flow out and slide into between the two guide plates 16.

[0042] A small portion of the soil in the guide plate 5 is blocked by the guide plate 16, so that a small portion of the soil flows out of the guide plate 5 through the opening 17 and slides between the two guide plates 16, so that the soil can cover the middle part of the protective film through the guidance of the guide plate 16, and then the protective film can be tightly attached to the soil surface to fix the protective film more firmly. If the opening 17 is blocked, the soil will not cover the middle part of the protective film.

[0043] The above only expresses the preferred embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A protective film laying device for agricultural vegetable planting, comprising a frame (1), wherein the number of the frames (1) is two, the front and rear sides of the bottom of the frame (1) are connected to wheels (3) via a rotating shaft (2), a push rod (21) is connected between the front sides of the two frames (1), an inclined plate (4) is connected between the tops of the two frames (1), two guide plates (5) are symmetrically connected to the top of the inclined plate (4), shells (6) are obliquely installed on the rear sides of the tops of the two frames (1), the two shells (6) are respectively located on the rear sides of the two guide plates (5), a sleeve rod (7) is rotatably connected to the frame (1) on the right side, and the sleeve rod (7) is located at the rear and lower part of the inclined plate (4), characterized in that: A soil conveying mechanism for conveying soil to the guide plate (5) is provided in the shell (6), the two soil conveying mechanisms are respectively connected to the rear rotating shafts (2) on the two frames (1), the rear sides of the left and right outer walls of the shell (6) are both rotatably connected to circular rings (8), a shovel plate (9) is connected between the two circular rings (8) connected to the same shell (6), the shovel plate (9) is used to scoop up soil and convey it to the soil conveying mechanism, a locking assembly for locking the circular ring (8) is provided on the outside of the shell (6), an adjustment mechanism is provided between the two frames (1), the adjustment mechanism comprises two connecting plates (121) respectively connected to the top front sides of the two frames (1), the two connecting plates (121) Two left and right inverted U-shaped sliders (123) are slidably connected via a guide rod I (122), a bidirectional screw rod I (124) is rotatably connected between the two connecting plates (121), the bidirectional screw rod I (124) is threadedly connected to the inverted U-shaped slider (123), two guide cloths (126) are symmetrically connected to the rear side of the inverted U-shaped slider (123), two winding drums (125) are symmetrically rotatably connected to the front side of the guide plate (5), four guide cloths (126) correspond to four winding drums (125) one by one, the guide cloths (126) are wound on the corresponding winding drums (125), and a spiral spring (127) is connected between the winding drum (125) and the guide plate (5); The locking assembly comprises a mounting plate (101) connected between the rear sides of the two housings (6), the mounting plate (101) being rotatably connected to two left and right worms (102), the two central rings (8) being connected to worm wheels (103), the two worm wheels (103) being respectively meshed with the two worm wheels (102); The soil conveying mechanism comprises two front and rear connecting shafts (111) rotatably connected to a housing (6); a conveyor belt (112) is sleeved between the front and rear connecting shafts (111) via a belt pulley; the conveyor belt (112) is located in the housing (6); baffles (113) are connected to the conveyor belt (112) at intervals along its motion trajectory; a transmission shaft (114) is rotatably connected to the rear side of the frame (1); the transmission shaft (114) is located on the upper side of the rear rotating shaft (2); the transmission shaft (114) is transmission-connected to the rear rotating shaft (2) via a gear set (115); and the transmission shaft (114) and the rear connecting shaft (111) are transmission-connected via a belt transmission assembly I (116); A positioning mechanism is provided between the two vehicle frames (1), the positioning mechanism comprising vertical plates (131) respectively connected to the two vehicle frames (1), the vertical plates (131) being located behind the sleeve rod (7), two left and right slide plates (133) being slidably connected between the two vertical plates (131) via a guide rod II (132), a pull rod (134) capable of moving forward and backward being slidably connected to the slide plate (133), a spring I (135) being connected between the pull rod (134) and the slide plate (133), an arc-shaped positioning block (136) being connected to the front side of the pull rod (134), the arc-shaped positioning block (136) being sleeved on the sleeve rod (7), a bidirectional screw rod II (137) being rotatably connected between the two vertical plates (131), and the bidirectional screw rod II (137) being threadedly connected to the slide plate (133); A guide mechanism is provided between the two vehicle frames (1), the guide mechanism comprising an arc-shaped guide plate (141) connected between the two vehicle frames (1), the arc-shaped guide plate (141) being located below the inclined plate (4), a U-shaped clamping plate (145) being slidably connected to the arc-shaped guide plate (141) and capable of moving forward and backward, a spring II (147) being connected between the U-shaped clamping plate (145) and the arc-shaped guide plate (141), a clamping plate (146) being slidably connected in the U-shaped clamping plate (145) and capable of moving up and down, a rotating shaft (142) being rotatably connected between the two vehicle frames (1), the rotating shaft (142) being located at the front side of the arc-shaped guide plate (141), two left and right winding wheels (143) being connected to the rotating shaft (142), a pull rope (144) being wound around the winding wheel (143), and the pull rope (144) passing through the U-shaped clamping plate (145) and connected to the clamping plate (146).

2. The protective film laying device for agricultural vegetable planting according to claim 1 is characterized in that: The inclined plate (4) is provided with a hole-opening mechanism, which comprises a guide rod III (151) and a lifting plate (152). The top front side of the inclined plate (4) is slidably connected to the lifting plate (152) via the guide rod III (151). The bottom of the lifting plate (152) is connected to two groups of left and right plugging rods (153). The inclined plate (4) and the arc-shaped guide plate (141) are both provided with two groups of left and right through holes for the plugging rods (153) to slide up and down. The right frame (1) is provided with a driving assembly for driving the lifting plate (152) to move up and down.

3. The protective film laying device for agricultural vegetable planting according to claim 2 is characterized in that: The driving assembly comprises a rotating rod (154) rotatably connected to the top of the right frame (1); the rotating rod (154) is connected to the front rotating shaft (2) on the right frame (1) through a belt transmission assembly II (155); a straight groove (158) is provided on the right side of the lifting plate (152); a disc (156) is connected to the left end of the rotating rod (154); a lever (157) is connected to the offset position of the disc (156); and the lever (157) is located in the straight groove (158).

4. The protective film laying device for agricultural vegetable planting according to claim 3 is characterized in that: The top of the inclined plate (4) is connected to two left and right guide plates (16), the two guide plates (16) are located between the two guide plates (5), the rear side of the guide plate (16) is bent in a direction close to the adjacent guide plate (5), the bent part of the guide plate (16) extends into the adjacent guide plate (5), and the two guide plates (5) are each provided with an opening (17) on one side close to each other for soil to flow out and slide into between the two guide plates (16).

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