A farmland protection net that is easy to disassemble and assemble

Abstract

The invention relates to the technical field of agricultural tools, and discloses a farmland protection net that is easy to disassemble and assemble, comprising a column, a loading cylinder, a protection net body, a winding mechanism, a connecting mechanism and a cleaning mechanism. The protection net body can be retracted and unwound relative to the loading cylinder through the winding mechanism. When shielding and protecting the top of the farmland, the protection net bodies on both sides are connected and merged through the connecting mechanism. The cleaning mechanism cooperates with the winding mechanism to clean the sundries adhered to the protection net body when the winding mechanism is in action. The winding mechanism provides a retractable use form for the protection net body. When the protection net body is not in use, it is rolled up into the loading cylinder, which is very easy to transfer and transport. At the beginning, it is ensured that the protection net body can cover most of the farmland patterns in the width direction. In the length direction, the protection net body retractable and unwinding action form provided by the winding mechanism makes the protection net body length coverage range adjustable to adapt to farmland protection work of different lengths.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural tools, and more particularly to a farmland protection net which is easy to assemble and disassemble. Background Art

[0002] When crops are just planted, the seedlings have weak resistance to the external environment and are easily attacked by small animals (such as birds and rodents). At this time, a protective net can be used to prevent small animals from entering or damaging the seedlings; when the fruits of crops begin to mature, they attract more birds and insects such as fruit flies, which can easily cause the fruits to be pecked or infected by pests and diseases. At this time, a protective net can be used to cover the plants to prevent birds and insects from contacting the fruits; in addition, some crops need to avoid excessive direct sunlight or strong winds during their growth process. At this time, a protective net can also be used to reduce the adverse effects of sunlight and wind on plant growth.

[0003] When conventionally using protective nets to protect farmland, it is necessary to first measure the length and width of the farmland, and then cut out a protective net of approximately the same area, spread it on the surface of the farmland, and then fix it at the four corners to keep the protective net in a taut state. The operation is relatively cumbersome, and the area of ​​the protective net formed is fixed, which is difficult to adapt to and adjust when dealing with farmland of different lengths. Summary of the invention

[0004] The invention provides a farmland protection net that is easy to assemble and disassemble, thereby solving the technical problems of inconvenient assembling and disassembling operation and low adaptability in the related art.

[0005] The present invention provides a farmland protection net that is easy to disassemble and assemble, comprising a column, a loading cylinder, a protection net body, a winding mechanism, a connecting mechanism and a cleaning mechanism, wherein the column is fixedly connected to the loading cylinder, and an empty slot is provided in the loading cylinder for the protection net body to pass through;

[0006] A horizontal loading cylinder and two columns are combined into a group of end parts; the loading cylinder is equipped with a winding mechanism, and the protective net body can be retracted and unwound relative to the loading cylinder through the winding mechanism. The connecting mechanism is matched with the end of the protective net body away from the winding mechanism. When shielding and protecting the top of the farmland, the two groups of end parts are placed at both ends of the length direction of the farmland and fixed, and then the protective net body is unwound from the loading cylinders on both sides, and the protective net bodies on both sides are connected and merged through the connecting mechanism. The cleaning mechanism cooperates with the winding mechanism to clean the debris adhering to the protective net body when the winding mechanism is in action.

[0007] As a further solution of the present invention: the connecting mechanism includes a top plate, an upper straight arm, a lower straight arm, a barb, a stop bar, a limit column, a bottom plate, a U-shaped seat and a connecting column;

[0008] On the side of a set of end parts, one side of the top plate is fixed to the edge of the protective net, and the other side is respectively fixed with an upper straight arm and a lower straight arm, a stop bar is rotatably mounted on the end of the upper straight arm, a barb is provided at the end of the lower straight arm, and a limit column engaged with the barb is fixed in the stop bar;

[0009] On the side of the other group of end parts, the bottom plate is fixed to the edge of the protective net body, a U-shaped seat is fixed on the bottom plate, and a connecting column is installed at the top end of the U-shaped seat.

[0010] As a further solution of the present invention: the winding mechanism includes a rotating shaft, a hand wheel, and a locking piece. The rotating shaft is rotatably installed between the columns. A hand wheel is fixedly provided on one side of the rotating shaft extending out of the column, and a locking piece matching the rotating shaft is installed on the column.

[0011] As a further solution of the present invention: the locking member includes a boss, a U-shaped frame and a bolt, the boss is fixed on the column, the U-shaped frame is fixed on the boss, and a bolt that is extruded and matched with the rotating shaft is installed on the top of the U-shaped frame.

[0012] As a further solution of the present invention: the cleaning mechanism includes a lower clamping plate, an upper clamping plate, a vertical plate, a second rotating shaft, a roller, blades, a transmission part and a liquid spraying part, the lower clamping plate is fixed on the loading cylinder, the vertical plate is fixed on the lower clamping plate, the upper clamping plate is fixed on the vertical plate, the second rotating shaft is rotatably installed in the vertical plate, a transmission part is cooperated between the second rotating shaft and the rotating shaft, a roller is eccentrically fixed in the second rotating shaft, a plurality of arc-shaped blades are fixed on the roller, the blades are in extrusion contact with the surface of the protective net body, and the second rotating shaft is also cooperated with a liquid spraying part.

[0013] As a further solution of the present invention: the transmission member includes a driven wheel, a driving wheel and a synchronous belt, the driven wheel is fixed on the second rotating shaft, the driving wheel is fixed on the first rotating shaft, and a synchronous belt is matched between the driving wheel and the driven wheel.

[0014] As a further solution of the present invention: the liquid spraying part includes a swing arm, a spray head, a sleeve and a connecting rod. The swing arm is rotatable relative to the bottom of the roller. The end of the swing arm is fixed with a spray head. The spray head sprays liquid toward the rotation center of the swing arm. The swing arm is slidably fitted with a sleeve. A connecting rod is hinged between the sleeve and the roller.

[0015] As a further solution of the present invention: the blades are made of a bendable flexible material, and after being pressed into the mesh of the protective net, they can avoid interfering with the movement of the protective net and the rotation of the roller by their own deformation when blocked.

[0016] As a further solution of the present invention: a chassis is fixed at the bottom of the column, a fixing cone is fixed on the chassis, and the fixing cone is arranged in a triangular shape on the chassis.

[0017] As a further solution of the present invention: the end of the bolt is provided with stripes.

[0018] The beneficial effects of the present invention are:

[0019] The winding mechanism in the present invention provides a retractable and unreelable use form for the protective net body. When the protective net body is not in use, it is rolled up into the loading drum. The volume occupied by the protective net structure of a piece of farmland after being disassembled and stored is basically the same as the volume occupied by the two groups of corresponding end parts. When the farmland protection net is laid in batches, it is very easy to transfer and transport.

[0020] When the size of the field changes, the conventional implementation method requires re-measuring the field area and re-cutting the protection net of the corresponding area. When implementing the present invention, it is only necessary to ensure at the beginning that the width direction of the protection net can cover most of the farmland patterns. In its length direction, due to the winding and unwinding action of the protection net provided by the winding mechanism, the length coverage range of the protection net can be adjusted to adapt to the protection of farmlands of different lengths.

[0021] When the cleaning mechanism is in use, the lateral scraping action on the protective net passing through here removes the stains on the surface of the protective net, while the eccentric structure gives the blades a vertical pushing action, which can remove the stains contaminated in the mesh of the protective net, thereby reducing the cleaning burden on the surface of the protective net caused by the stains generated when the organisms stay on the protective net.

[0022] When the cleaning mechanism is in use, the nozzle can also perform reciprocating motion while spraying cleaning liquid onto the protective net body below, and the motion trajectory is an arc. Combined with the above-mentioned scraping action of the blades, when the protective net body is being cleaned, the stains on it are first rinsed by the nozzle spray liquid to loosen the adhesion between the stains and the protective net body, and then are scraped by the blades to easily scrape off the stains, and then are rinsed again by the nozzle spray liquid to avoid stain residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a farmland protection net that is easy to disassemble and assemble proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of a partially decomposed structure of a farmland protection net that is easy to disassemble and assemble proposed by the present invention;

[0025] Figure 3 It is a schematic diagram of the matching structure of a locking member and a rotating shaft in a farmland protection net that is easy to disassemble and assemble proposed by the present invention;

[0026] Figure 4 It is a schematic diagram of the state change of the connection mechanism in the farmland protection net which is easy to disassemble and assemble proposed by the present invention;

[0027] Figure 5 This is a schematic diagram of the accumulation of stains and impurities when the protective net is actually used;

[0028] Figure 6 It is a schematic diagram of a cleaning mechanism in a farmland protection net that is easy to disassemble and assemble proposed by the present invention;

[0029] Figure 7 This is a schematic diagram of the connection between the second rotating shaft and the roller in a farmland protection net that is easy to disassemble and assemble proposed by the present invention;

[0030] Figure 8 It is a schematic diagram of the coordination structure of the liquid spraying part and the cleaning mechanism in the farmland protection net which is easy to disassemble and assemble proposed by the present invention;

[0031] Fig. 9 The present invention provides a schematic diagram of the unfolding structure of a liquid spraying component in a farmland protection net that is easy to assemble and disassemble.

[0032] In the figure: 1, column; 11, chassis; 12, fixed cone; 2, loading cylinder; 3, protective net body; 4, winding mechanism; 41, rotating shaft 1; 42, hand wheel; 43, locking piece; 431, boss; 432, U-shaped frame; 433, bolt; 5, connecting mechanism; 51, top plate; 511, upper straight arm; 512, lower straight arm; 513, barb; 52, stop bar; 521, limit column ; 53, bottom plate; 54, U-shaped seat; 55, connecting column; 6, cleaning mechanism; 61, lower clamping plate; 62, upper clamping plate; 63, vertical plate; 64, rotating shaft 2; 65, roller; 66, blade; 67, transmission part; 671, driven wheel; 672, driving wheel; 673, synchronous belt; 68, spray part; 681, swing arm; 682, nozzle; 683, sleeve; 684, connecting rod. DETAILED DESCRIPTION

[0033] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that the discussion of these implementations is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Various examples may omit, replace, or add various processes or components as needed. In addition, the features described in some examples may also be combined in other examples.

[0034] Embodiment 1

[0035] A farmland protection net that is easy to disassemble and assemble, such as Figure 1 - Fig. 9As shown, it includes a column 1, a loading cylinder 2, a protective net body 3, a winding mechanism 4, a connecting mechanism 5 and a cleaning mechanism 6. The column 1 is fixedly connected to the loading cylinder 2. An empty slot for the protective net body 3 to pass through is opened in the loading cylinder 2. A horizontal loading cylinder 2 and two columns 1 are combined into a group of end parts; the loading cylinder 2 is equipped with a winding mechanism 4, and the protective net body 3 can be retracted and unwound relative to the loading cylinder 2 through the winding mechanism 4. The connecting mechanism 5 is matched with the end of the protective net body 3 away from the winding mechanism 4. When shielding and protecting the top of the farmland, take the two groups of end parts and place them at the length of the farmland respectively. The two ends of the column 1 are fixed in the direction, and the fixation is achieved through the chassis 11 and the fixing cone 12. The bottom of the column 1 is fixed with the chassis 11, and the fixing cone 12 is fixed on the chassis 11. The fixing cone 12 is arranged in a triangular shape on the chassis 11. When fixing, the fixing cone 12 is pressed into the soil to fix the column 1, which is convenient and practical. Then, the protective net body 3 is unwound from the loading cylinders 2 on both sides, and the protective net bodies 3 on both sides are connected and merged through the connecting mechanism 5. The cleaning mechanism 6 cooperates with the winding mechanism 4, and the sundries adhering to the protective net body 3 are cleaned when the winding mechanism 4 is in action;

[0036] like Figure 4 As shown, the connecting mechanism 5 includes a top plate 51, an upper straight arm 511, a lower straight arm 512, a barb 513, a stop bar 52, a limit column 521, a bottom plate 53, a U-shaped seat 54 and a connecting column 55;

[0037] On the side of a set of end components, one side of the top plate 51 is fixed to the edge of the protective net body 3, and the other side is respectively fixed with an upper straight arm 511 and a lower straight arm 512, a stop bar 52 is rotatably mounted on the end of the upper straight arm 511, and a barb 513 is provided at the end of the lower straight arm 512, and a limit column 521 engaged with the barb 513 is fixed in the stop bar 52;

[0038] On the side of the other set of end components, the bottom plate 53 is fixed to the edge of the protective net body 3, a U-shaped seat 54 is fixed on the bottom plate 53, and a connecting column 55 is installed at the top of the U-shaped seat 54;

[0039] When connecting the protective net body 3, the edges of the protective net body 3 on the end parts on both sides are pulled to the center of the farmland. At this time, the state of the connecting mechanism 5 is as follows: Figure 4 As shown in the upper middle part, the edges of the protective net 3 on both sides are then squeezed toward the center, as shown in the upper middle part. Figure 4As shown in the lower middle part, after being squeezed by the connecting column 55, the baffle 52 rotates toward the side of the top plate 51, opening the gap between the upper straight arm 511 and the lower straight arm 512. At this time, the limiting column 521 is separated from the hook 513, and then the squeezing is continued until the limiting column 521 passes over the top of the connecting column 55. At this time, the entire U-shaped seat 54 completely enters the gap between the upper straight arm 511 and the lower straight arm 512, and then the baffle 52 is rotated in the opposite direction (at this time it will not be blocked by the connecting column 55) until the limiting column 521 is re-engaged in the hook 513, and the top plate 51 is combined with the bottom plate 53, and then the winding mechanism 4 is used to roll up the protective net body 3 to tighten the protective net body 3.

[0040] It should be noted that in order to complete the connection function of the protective net body 3, the relevant structure of the winding mechanism 4 is also required to cooperate. Specifically, the winding mechanism 4 includes: a rotating shaft 41, a hand wheel 42, and a locking member 43. The rotating shaft 41 is rotatably installed between the columns 1. The hand wheel 42 is fixedly arranged on one side of the rotating shaft 41 extending out of the column 1, and the locking member 43 cooperating with the rotating shaft 41 is installed on the column 1.

[0041] The locking member 43 includes a boss 431, a U-shaped frame 432 and a bolt 433. The boss 431 is fixed on the column 1, the U-shaped frame 432 is fixed on the boss 431, and the bolt 433 that is pressed and matched with the rotating shaft 1 41 is installed on the top of the U-shaped frame 432;

[0042] As mentioned above, after the connection of the ends of the protective net body 3 is completed through the connecting mechanism 5, the protective net body 3 needs to be rolled up through the winding mechanism 4 to form a tensioned state, which can be achieved by rotating the rotating shaft 41 through the hand wheel 42. Behind the protective net body 3, it is necessary to lock the rotation state of the rotating shaft 41 at this time through the locking member 43, and the bolt 433 is rotated downward relative to the U-shaped frame 432 until the rotating shaft 41 is pressed. In addition, a striped pressure block can be attached to the end of the bolt 433, as well as some treatment methods to increase its surface friction, so as to better overcome the tendency of radial rotation of the rotating shaft 41.

[0043] When a conventional implementation method uses a protective net to protect farmland, it is necessary to first measure the length and width of the farmland, and then cut out a protective net of similar area, spread it on the surface of the farmland, and then fix it at the four corners to keep the protective net in a tensioned state. The present invention adopts a retractable form to disassemble and assemble the protective net, which is more flexible to use than the existing implementation method;

[0044] First, the winding mechanism 4 provides a retractable use form for the protective net body 3. When the protective net body 3 is not in use, it is rolled into the loading cylinder 2. The volume occupied by the protective net structure of a piece of farmland after being disassembled and stored is basically the same as the volume occupied by the two sets of corresponding end components. When the farmland protective net is laid in batches, it is very easy to transfer and transport;

[0045] In addition, when the size of the field changes, the conventional implementation method needs to re-measure the field area and re-cut the protection net of the corresponding area. When implementing the present invention, it is only necessary to ensure at the beginning that the width direction of the protection net body 3 can cover most of the farmland patterns. In its length direction, due to the winding and unwinding action of the protection net body 3 provided by the winding mechanism 4, the length coverage range of the protection net body 3 can be adjusted to adapt to farmland protection work of different lengths.

[0046] When the protective net is actually used, it mainly deals with organisms that are harmful to the growth of crops. After the protective net is covered, these organisms will be blocked by the protective net and cannot reach the crops. However, the stay of these organisms on the protective net will bring a cleaning burden to the surface of the protective net, and the bird droppings and shellac residues produced will adhere to the protective net. Since the present invention adopts a winding method to store the protective net body 3 when storing, if it is not cleaned in time, these sticky impurities will adhere to the protective net body 3 when it is rolled up, so that the mesh surfaces of the protective net body 3 are adhered to each other. When it is unrolled and used again, the protective net body 3 is easily pulled and torn, and holes are formed at the positions covered by these impurities, causing the protective net body 3 to be unable to continue to be used normally, which seriously reduces the service life of the protective net body 3. To solve this problem, the present invention is specifically implemented as follows:

[0047] Embodiment 2

[0048] like Figure 1 - Fig. 9 As shown, on the basis of the first embodiment, the cleaning mechanism 6 includes: a lower clamping plate 61, an upper clamping plate 62, a vertical plate 63, a second rotating shaft 64, a roller 65, a blade 66, a transmission member 67 and a liquid spraying member 68, the loading cylinder 2 is fixed with a lower clamping plate 61, the lower clamping plate 61 is fixed with a vertical plate 63, the vertical plate 63 is fixed with an upper clamping plate 62, the vertical plate 63 is rotatably mounted with a second rotating shaft 64, a transmission member 67 is matched between the second rotating shaft 64 and the first rotating shaft 41, a roller 65 is eccentrically fixed in the second rotating shaft 64, a plurality of arc-shaped blades 66 are fixedly mounted on the roller 65, the blades 66 are in compression contact with the surface of the protective net body 3, and the second rotating shaft 64 is also matched with a liquid spraying member 68;

[0049] The transmission member 67 includes a driven wheel 671, a driving wheel 672 and a synchronous belt 673. The driven wheel 671 is fixed on the second rotating shaft 64, the driving wheel 672 is fixed on the first rotating shaft 41, and a synchronous belt 673 is matched between the driving wheel 672 and the driven wheel 671;

[0050] The liquid spraying part 68 includes a swing arm 681, a spray head 682, a sleeve 683 and a connecting rod 684. The swing arm 681 is rotatable relative to the bottom of the roller 65. A spray head 682 is fixed to the end of the swing arm 681. The spray head 682 sprays liquid toward the rotation center of the swing arm 681. A sleeve 683 is slidably fitted on the swing arm 681. A connecting rod 684 is hinged between the sleeve 683 and the roller 65.

[0051] When the cleaning mechanism 6 is in use, refer to Figure 6 As shown, a limiting slot is formed between the lower clamping plate 61, the upper clamping plate 62 and the vertical plate 63 for the protective net body 3 to pass through. Taking the winding function as an example, this limiting slot allows the protective net body 3 to move in a straight state here when entering the loading cylinder 2 for winding. A through slot is provided on the upper clamping plate 62 for the blade 66 to hit the surface of the protective net body 3. When winding, the rotating shaft 1 41 rotates, and the rotating shaft 2 64 is driven to rotate through the transmission member 67. Since the rotating shaft 2 64 is eccentrically fixed to the roller 65, the roller 65 and its upper The installed blades 66 rotate eccentrically, and the scraping effect in the lateral direction removes the stains on the surface of the protective net body 3 passing through here, and the eccentric structure gives the blades 66 a pushing effect in the vertical direction, which can remove the stains stained in the mesh of the protective net body 3. It should be specially noted here that the blades 66 are made of bendable flexible material. After being pressed into the mesh of the protective net body 3, they can avoid interfering with the movement of the protective net body 3 and the rotation of the roller 65 by their own deformation when blocked.

[0052] In addition to cleaning the stains on the protective net body 3 by scraping, the cleaning mechanism 6 also introduces the assistance of the liquid spraying member 68. When the rotating shaft 64 rotates, the sleeve 683 is driven to move eccentrically through the hinge of the connecting rod 684, and then the sleeve 683 is used to squeeze the swing arm 681, driving the swing arm 681 to move as follows: Figure 8 The reciprocating swinging action between the dotted line structure and the solid line structure shown in the figure enables the nozzle 682 to perform reciprocating action when spraying cleaning liquid onto the protective net body 3 below, and the action trajectory is an arc. Combined with the scraping action of the blade 66 mentioned above, when the protective net body 3 is being cleaned, the stains on it are first rinsed by the liquid sprayed by the nozzle 682 to loosen the adhesion between the stains and the protective net body 3, and then are scraped by the blade 66 to easily scrape off the stains, and then are rinsed by the liquid sprayed by the nozzle 682 again (the reciprocating action structure causes the nozzle 682 to swing at this time) to avoid the residue of stains.

[0053] The above describes an embodiment of the present invention, but this embodiment is not limited to the above-mentioned specific implementation mode. The above-mentioned specific implementation mode is merely illustrative and not restrictive. Under the guidance of this embodiment, ordinary technicians in this field can also make more forms of equivalent embodiments, all of which are within the protection of this embodiment.

Claims

1. A farmland protection net, characterized in that: The invention comprises a column (1), a loading cylinder (2), a protective net body (3), a winding mechanism (4), a connecting mechanism (5) and a cleaning mechanism (6), wherein the column (1) is fixedly connected to the loading cylinder (2), and a slot is provided in the loading cylinder (2) for the protective net body (3) to pass through; A horizontal loading cylinder (2) and two uprights (1) are combined to form a set of end components; the loading cylinder (2) is equipped with a winding mechanism (4), and the protective net body (3) can be retracted and unwound relative to the loading cylinder (2) through the winding mechanism (4); the connecting mechanism (5) is equipped at one end of the protective net body (3) away from the winding mechanism (4); when shielding and protecting the farmland above, the two sets of end components are respectively placed at the two ends of the farmland in the length direction and fixed, and then the protective net body (3) is respectively unwound from the loading cylinders (2) on both sides, and the protective net bodies (3) on both sides are connected and merged through the connecting mechanism (5); the cleaning mechanism (6) cooperates with the winding mechanism (4) to clean the debris adhered to the protective net body (3) when the winding mechanism (4) is in motion; The connecting mechanism (5) comprises a top plate (51), an upper straight arm (511), a lower straight arm (512), a barb (513), a stop bar (52), a limit column (521), a bottom plate (53), a U-shaped seat (54) and a connecting column (55); On one side of a set of end components, one side of the top plate (51) is fixed to the edge of the protective net body (3), and the other side is respectively fixed with an upper straight arm (511) and a lower straight arm (512), a stop bar (52) is rotatably mounted on the end of the upper straight arm (511), a barb (513) is provided on the end of the lower straight arm (512), and a limiting column (521) engaged with the barb (513) is fixed in the stop bar (52); On the side of the other set of end components, the bottom plate (53) is fixed to the edge of the protective net body (3), a U-shaped seat (54) is fixed on the bottom plate (53), and a connecting column (55) is installed at the top end of the U-shaped seat (54); The winding mechanism (4) comprises a rotating shaft (41), a hand wheel (42), and a locking member (43); the rotating shaft (41) is rotatably mounted between the columns (1); a hand wheel (42) is fixedly mounted on one side of the rotating shaft (41) extending out of the column (1); and a locking member (43) cooperating with the rotating shaft (41) is mounted on the column (1); The cleaning mechanism (6) comprises a lower clamping plate (61), an upper clamping plate (62), a vertical plate (63), a second rotating shaft (64), a roller (65), blades (66), a transmission member (67) and a liquid spraying member (68). The lower clamping plate (61) is fixed on the loading cylinder (2), the vertical plate (63) is fixed on the lower clamping plate (61), the upper clamping plate (62) is fixed on the vertical plate (63), the second rotating shaft (64) is rotatably mounted in the vertical plate (63), a transmission member (67) is matched between the second rotating shaft (64) and the first rotating shaft (41), a roller (65) is eccentrically fixed in the second rotating shaft (64), a plurality of arc-shaped blades (66) are fixed on the roller (65), the blades (66) are in compression contact with the surface of the protective net body (3), and the second rotating shaft (64) is also matched with a liquid spraying member (68).

2. A farmland protection net according to claim 1, characterized in that: The locking member (43) comprises a boss (431), a U-shaped frame (432) and a bolt (433); the boss (431) is fixed on the column (1); the U-shaped frame (432) is fixed on the boss (431); and a bolt (433) which is pressed and matched with the rotating shaft (41) is installed on the top of the U-shaped frame (432).

3. The farmland protection net according to claim 1, characterized in that: The transmission member (67) comprises a driven wheel (671), a driving wheel (672) and a synchronous belt (673); the driven wheel (671) is fixed on the second rotating shaft (64); the driving wheel (672) is fixed on the first rotating shaft (41); and a synchronous belt (673) is provided between the driving wheel (672) and the driven wheel (671).

4. The farmland protection net according to claim 1, characterized in that: The liquid spraying member (68) comprises a swing arm (681), a spray head (682), a sleeve (683) and a connecting rod (684); the swing arm (681) is rotatable relative to the bottom of the roller (65); a spray head (682) is fixed to the end of the swing arm (681); the spray head (682) sprays liquid toward the rotation center of the swing arm (681); the swing arm (681) is slidably fitted with a sleeve (683); a connecting rod (684) is hinged between the sleeve (683) and the roller (65).

5. The farmland protection net according to claim 1, characterized in that: The blades (66) are made of a bendable flexible material and, after being pressed into the mesh of the protective net body (3), can avoid interfering with the movement of the protective net body (3) and the rotation of the roller (65) by deforming themselves when encountering an obstruction.

6. The farmland protection net according to claim 1, characterized in that: A chassis (11) is fixed at the bottom of the column (1), and a fixing cone (12) is fixed on the chassis (11), and the fixing cone (12) is arranged in a triangular shape on the chassis (11).

7. The farmland protection net according to claim 2, characterized in that: The end of the bolt (433) is provided with stripes.

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