An anti-lodging field display board with a grid-shaped support plate winding function

Abstract

The present application relates to the technical field of agricultural equipment, and discloses an anti-lodging field display board with a grid-shaped support plate reel folding function, comprising a main body. The reel is unfolded and laid on the support plate through the pulling of the pull rod, and is folded through the elastic reset. The side of the stand is provided with an opening and closing structure, and the opening faces the support plate. The height is within the range of the staff standing on the ground for convenient operation, facilitating the replacement of the reel. The design improves the wind resistance of the display board, realizes the convenient replacement of the reel, reduces the erosion of the display content caused by wind blowing, sun exposure and rain when the reel is exposed for a long time, prolongs the service life of the reel, and reduces the maintenance cost and labor intensity.

Description

Technical Field

[0001] This invention relates to the field of agricultural equipment technology, specifically to an anti-lodging field display board with a grid-like support plate and a roll-up function. Background Technology

[0002] In agricultural research and production practices, field experiments often require the setting up of fixed display boards to identify different experimental contents, such as crop varieties and fertilizer treatments, so as to facilitate long-term observation and recording by researchers.

[0003] Currently, most widely used field display boards consist of a metal panel combined with a ground support frame. In use, the support frame must be inserted into the soil for fixation, and then adhesive paper printed with test information is pasted onto the metal panel. This traditional structure has significant drawbacks in practical application: First, the metal panel and adhesive paper are exposed to the outdoors for extended periods, directly subjected to sunlight, rain, and wind erosion, easily leading to panel corrosion, coating peeling, and adhesive paper fading and brittleness, resulting in blurred and illegible display content and a significantly shortened lifespan. Second, its overall structure has poor wind resistance; in strong winds, especially during the typhoon season in southern China, it is prone to collapse or structural bending, not only losing its identifying function but also potentially causing economic losses. Finally, changing the test content is extremely cumbersome: workers may need to climb to replace the adhesive paper, posing safety risks; or the entire display board may need to be pulled out of the soil, replaced, and then reburied, which is time-consuming, labor-intensive, and severely impacts field work efficiency.

[0004] Therefore, there is an urgent need to develop a field display board that can effectively resist wind and rain erosion, has good lodging resistance, and allows for quick, convenient, and safe replacement of the displayed content. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-lodging field display board with a grid-like support plate and a roll-up function, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to an anti-lodging field display board with a mesh-like support plate and a roll-up function, comprising a main body and further comprising: A rotating mechanism is installed inside the main body and is used to rotate the main body when it moves. The retraction mechanism is installed inside the main body and is used to apply thrust to the rotating mechanism when the retraction mechanism moves, so as to keep the rotating mechanism stable.

[0007] Furthermore, the main body includes: The fixing components are installed on the side wall of the main body and are used to support the display scroll. The rotating component is installed on the side wall of the fixed component via a connector, allowing staff to unroll the display scroll while pulling it.

[0008] Furthermore, the rotating mechanism includes: Telescopic assembly, which is installed on the outer surface of the rotating shaft, is used to extend and retract when the rotating assembly rotates; A rolling component is installed on the side wall of the rotating component and is used to roll when the rotating component rotates.

[0009] Furthermore, the shrinkage mechanism includes: Auxiliary components are installed on the outer surface of the telescopic components to assist the telescopic components in their movement; The swing assembly is installed on the rotating assembly and is used to swing when the telescopic assembly moves.

[0010] Furthermore, the fixing component includes a support plate fixedly connected to the side wall of the main body, and the support plate has several grid grooves inside.

[0011] Furthermore, the rotating assembly includes columns fixedly connected to the left and right sides of the support plate, with a fixing groove provided on the inner wall of the left column; The inside of the fixed groove is rotatably connected to a rotating shaft, and a scroll is fixedly connected to the outer surface of the rotating shaft. The inner wall of the column is fixedly connected to two fixing blocks, and each fixing block has a rotating wheel rotatably connected to one side of the block that is close to the other. The outer surfaces of the two fixing blocks are in contact with the inner wall of the roll, and the bottom of the left column is bolted with a side door for easy loading and unloading of the roll.

[0012] Furthermore, the telescopic assembly includes a fixed ring fixedly connected to the outer surface of the rotating shaft, and an elastic strip is provided on the side wall of the fixed ring. A pull rod is fixedly connected to the end of the elastic strip away from the rotating shaft. The outer surface of the pull rod is fixedly connected to the end of the reel away from the rotation axis.

[0013] Furthermore, the rolling assembly includes a connecting rod fixedly connected between the two columns, and a moving groove is provided on the side wall of the connecting rod, with a rolling wheel slidably connected inside the moving groove; The side wall of the roller is rotatably connected to the side wall of the pull rod.

[0014] Furthermore, the auxiliary component includes a second elastic strip fixedly connected to the outer surface of the pull rod, and a rotating rod is fixedly connected to the end of the second elastic strip away from the telescopic component; A positioning plate is rotatably connected to the outer surface of the rotating rod, and a fixed shaft is fixedly connected to the side of the positioning plate near the elastic bar 2. The side wall of the rotating rod is rotatably connected to the inner wall of the right column, and the side wall of the rotating shaft is fixedly connected to the inner wall of the right column.

[0015] Furthermore, the swing assembly includes several springs fixedly connected to the side wall of the column, and a push bar is fixedly connected to the end of each spring away from the column; One of the push bars has a swing rod rotatably connected to its side wall, and the swing rod has a sliding groove inside. The inside of the sliding groove is slidably connected to the outer surface of the fixed shaft.

[0016] 1. In this invention, after the push bar moves, the pull rod continues to move past the push bar and enters the interior of the right-side column. After the pull rod passes the push bar, the push bar will reset under the reaction force of the spring, thus fixing the pull rod. At the same time, the scroll will unfold and be laid on the side wall of the support plate by the pull rod. At this time, the scroll will be supported by the support plate, allowing the display content to be fully unfolded. This realizes the folding and unfolding of the scroll. The side wall of the column is designed to open and close, and the opening position is less than 2 meters above the ground, allowing staff to move the scroll inside the column. This facilitates timely replacement of the scroll when the content to be displayed changes, reducing the risk of the scroll being corroded by strong winds and rain during long-term display or by sun exposure and rainwater soaking when not in use for a period of time. It also reduces the labor intensity of staff when replacing the scroll and improves the efficiency of the scroll in the display board.

[0017] 2. In this invention, while the pull rod moves, the second elastic bar applies a pulling force to the pull rod under the action of the reset potential energy. At this time, the pulling force generated by the second elastic bar and the first elastic bar on the pull rod is in a balanced state. During the reset process of the second elastic bar, it will drive the rotating rod to rotate and retract on the inner wall of the column, so as to achieve a horizontal state when the pull rod moves. This reduces the situation where the pull rod tilts and gets stuck when it moves to the right inside the moving groove due to the friction between the pull rod and the inner wall of the moving groove. This keeps the device running smoothly and improves the stability of the device during operation.

[0018] 3. In this invention, as the pull rod continues to move, the second elastic bar gradually wraps around the outer surface of the rotating rod. At this time, the diameter of the rotating rod and the second elastic bar gradually increases. When the pull rod is about to enter the interior of the right column, the curled outer surface of the pull rod will contact the side wall of the swing rod, thereby pushing the swing rod to swing on the outer surface of the fixed shaft. When the fixed shaft swings, it will push the push bar to move, thereby fixing the pull rod that has entered the interior of the column, further improving the stability of the device during operation.

[0019] 4. In this invention, while the scroll is rotating and extending, its outer surface contacts the outer surface of the rotating wheel. Then, when the scroll unfolds, its inner wall drives the two rotating wheels to rotate on the side wall of the fixed block. When the rotating wheels rotate, they assist the unfolding movement of the scroll. The unfolded part of the scroll is restricted by the rotating wheels to unfold completely and smoothly, so that the scroll can be better laid on the side wall of the support plate when unfolding. This reduces the twisting and folding of the side wall of the scroll during the stretching and unfolding process, allowing the scroll to unfold better and further improving the utilization efficiency of the scroll in the display board.

[0020] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention; Figure 3 This is a partial cross-sectional view of the rotating component of the present invention; Figure 4 This is a schematic diagram of the rotating component of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the telescopic component of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle; Figure 8 This is a partial cross-sectional view of the telescopic component of the present invention; Figure 9 This is a schematic diagram of the scrolling component of the present invention; Figure 10 This is a schematic diagram of the auxiliary components of the present invention; Figure 11 This invention Figure 10 A magnified view of point C in the middle.

[0023] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Main body; 11. Fixing component; 111. Support plate; 112. Grid groove; 12. Rotating component; 121. Column; 122. Fixing groove; 123. Rotating shaft; 124. Roller; 125. Fixing block; 126. Rotating wheel; 2. Rotating mechanism; 21. Telescopic component; 211. Fixing ring; 212. Elastic bar one; 213. Pull rod; 22. Rolling component; 221. Connecting rod; 222. Moving groove; 223. Rolling wheel; 3. Retraction mechanism; 31. Auxiliary component; 311. Elastic bar two; 312. Rotating rod; 313. Positioning plate; 314. Fixing shaft; 32. Swinging component; 321. Spring; 322. Push bar; 323. Swinging rod; 324. Sliding groove. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1 - Figure 11 As shown, the present invention is an anti-lodging field display board with a grid-like support plate and a roll-up function, comprising a main body 1, and further comprising: Rotating mechanism 2 is installed inside the main body 1 and is used to rotate when the main body 1 moves; The retraction mechanism 3 is installed inside the main body 1 and is used to apply a thrust to the rotating mechanism 2 when the retraction mechanism 3 moves, so that the rotating mechanism 2 remains stable.

[0026] Entity 1 includes: Fixing component 11 is installed on the side wall of the main body 1 and is used to support the display scroll; Rotating component 12 is installed on the side wall of fixed component 11 via a connector, and is used by staff to pull the display scroll to rotate and unfold it.

[0027] Rotating mechanism 2 includes: Telescopic component 21 is installed on the outer surface of the rotating shaft 123 and is used to extend and retract when the rotating component 12 rotates; The rolling component 22 is installed on the side wall of the rotating component 12 and is used to roll when the rotating component 12 rotates.

[0028] The shrinkage mechanism 3 includes: Auxiliary component 31 is installed on the outer surface of telescopic component 21 to assist telescopic component 21 in its movement. The swing assembly 32 is installed inside the rotating assembly 12 and is used to swing when the telescopic assembly 21 moves.

[0029] The fixing component 11 includes a support plate 111 fixedly connected to the side wall of the main body 1. The support plate 111 has several grid grooves 112 inside. The scroll 124 will be fully unfolded and laid on the side wall of the support plate 111 by pulling the pull rod 213, realizing the winding and unfolding of the scroll 124.

[0030] The rotating assembly 12 includes columns 121 fixedly connected to the left and right sides of the support plate 111, and a fixing groove 122 is provided on the inner wall of the left column 121. A rotating shaft 123 is rotatably connected inside the fixed groove 122, and a scroll 124 is fixedly connected to the outer surface of the rotating shaft 123. The inner wall of the column 121 is fixedly connected to two fixing blocks 125, and the two fixing blocks 125 are rotatably connected to a rotating wheel 126 on the side of each other. Among them, the outer surfaces of the two fixing blocks 125 are in contact with the inner wall of the scroll 124. The bottom of the left column 121 is bolted with a side door for easy loading and unloading of the scroll. When the pull rod 213 is pulled and moves, its outer surface will pull the scroll 124 and the elastic strip 212 connected to it to extend. When the elastic strip 212 extends, it will pull the rotating shaft 123 to rotate inside the fixing groove 122.

[0031] The telescopic assembly 21 includes a fixed ring 211 fixedly connected to the outer surface of the rotating shaft 123. The side wall of the fixed ring 211 is provided with an elastic strip 212. A pull rod 213 is fixedly connected to one end of the elastic strip 212 away from the rotating shaft 123. The outer surface of the pull rod 213 is fixedly connected to the end of the scroll 124 away from the rotating shaft 123. During the process of the pull rod 213 pulling the scroll 124 to unfold, the rotating shaft 123 will be pulled by the pull rod 213 to rotate. While the scroll 124 is rotating and extending, its outer surface will contact the outer surface of the rotating wheel 126. Then, when the scroll 124 unfolds, its inner wall will drive the two rotating wheels 126 to rotate on the side wall of the fixed block 125.

[0032] The rolling assembly 22 includes a connecting rod 221 fixedly connected between two columns 121. The side wall of the connecting rod 221 is provided with a moving groove 222, and a rolling wheel 223 is slidably connected inside the moving groove 222. The side wall of the roller 223 is rotatably connected to the side wall of the pull rod 213. When the pull rod 213 moves, it will drive the roller 223 to roll inside the moving groove 222, thereby reducing the friction between the outer surface of the pull rod 213 and the inside of the moving groove 222.

[0033] The auxiliary component 31 includes an elastic strip 311 fixedly connected to the outer surface of the pull rod 213, and a rotating rod 312 is fixedly connected to one end of the elastic strip 311 away from the telescopic component 21. A positioning plate 313 is rotatably connected to the outer surface of the rotating rod 312, and a fixed shaft 314 is fixedly connected to the side of the positioning plate 313 near the elastic strip 311. The side wall of the rotating rod 312 is rotatably connected to the inner wall of the right column 121, and the side wall of the rotating shaft 123 is fixedly connected to the inner wall of the right column 121. When the elastic bar 311 is reset and rotated to retract and drive the pull rod 213 to move to the right, the rotating rod 312 will rotate under the drive of the elastic bar 311 being reset. Then, as the pull rod 213 continues to move, the elastic bar 311 will gradually surround the outer surface of the rotating rod 312.

[0034] The swing assembly 32 includes a plurality of springs 321 fixedly connected to the side wall of the column 121, and a push bar 322 is fixedly connected to one end of the plurality of springs 321 away from the column 121; One of the push bars 322 has a swing rod 323 rotatably connected to its side wall, and the swing rod 323 has a sliding groove 324 inside. The sliding groove 324 is slidably connected to the outer surface of the fixed shaft 314. When the pull rod 213 moves from the inside of the left column 121 to the inside of the right column 121, it will contact the side wall of the right push bar 322 and apply a pushing force to it. After the push bar 322 is pushed, it will apply a pushing force to the spring 321 connected to it, causing the spring 321 to contract.

[0035] In use, after the staff moves the display board to the designated position, they open the side wall of the left column 121, and fit the scroll 124 to be displayed onto the outer surface of the rotating shaft 123. One end of the scroll 124 is fixed to the outer surface of the rotating shaft 123. Then, one end of the rotating shaft 123 is connected to the inside of the fixing groove 122, and the other end is fixedly connected to the outer surface of the pull rod 213. The pull rod 213 is then pulled from left to right. When the pull rod 213 moves under tension, its outer surface applies a pushing force to the side wall of the push bar 322 in contact with it. The push bar 322, after receiving the pushing force, applies a pushing force to the spring 321. When the operator pulls the lever 213 past the push bar 322, the spring 321 will reset under the action of elastic potential energy. As the lever 213 moves under tension, its outer surface pulls the connected roller 124 and elastic bar 212 to extend. The extension of the elastic bar 212 pulls the rotating shaft 123 to rotate inside the fixed groove 122. When the lever 213 moves from the left column 121 to the right column 121, it contacts the side wall of the right push bar 322 and applies a pushing force to it. The push bar 322, after being pushed, will then exert a pushing force on the side wall of the right push bar 322. Spring 321 applies a pushing force to retract, simultaneously moving push bar 322. After push bar 322 moves, pull rod 213 continues to move, passing push bar 322 and entering the interior of right column 121. After passing push bar 322, push bar 322 resets under the reaction force of spring 321, thus fixing pull rod 213. At the same time, scroll 124 unfolds and is laid on the side wall of support plate 111 by the pull of pull rod 213. At this time, scroll 124 is supported by support plate 111, allowing the display content to be fully unfolded, realizing the display of scroll 124. The folding and unfolding of the scroll 124 is achieved by connecting a side door to the bottom bolts of the column 121. The opening is located less than 2 meters above the ground, allowing staff to open the side door and move the scroll 124 into the interior of the column 121. This facilitates timely replacement of the scroll 124 when the content to be displayed changes, reducing the risk of the scroll 124 being corroded by strong winds and rain during long-term display or by sun exposure and rainwater soaking when not in use for a period of time. It also reduces the labor intensity of staff when replacing the scroll 124 and improves the efficiency of the scroll 124 in the display board.

[0036] When the pull rod 213 moves from the inside of the left column 121 to the inside of the right column 121, its outer surface first applies a pushing force to the push bar 322 inside the left column 121, causing the push bar 322 to retract. After the push bar 322 retracts, the pull rod 213 moves out of the fixed state. As the pull rod 213 moves, it drives the rolling wheel 223 to roll inside the moving groove 222, thereby reducing the friction between the outer surface of the pull rod 213 and the inside of the moving groove 222. At the same time as the pull rod 213 moves, the elastic bar 311 applies a pulling force to the pull rod 213 under the action of the reset potential energy. At this time, the tension generated by elastic bar 211 and elastic bar 212 on the pull rod 213 is in a balanced state. During the reset process of elastic bar 211, it will drive the rotating rod 312 to rotate and retract on the inner wall of the column 121, so that the pull rod 213 is in a horizontal state when it moves. This reduces the situation where the pull rod 213 tilts and gets stuck when it moves to the right inside the moving groove 222 due to the friction between the pull rod 213 and the inner wall of the moving groove 222. This keeps the device running smoothly and improves the stability of the device during operation.

[0037] When the elastic bar 311 resets and rotates to retract, causing the pull rod 213 to move to the right, the rotating rod 312 will rotate under the reset of the elastic bar 311. Then, as the pull rod 213 continues to move, the elastic bar 311 will gradually wrap around the outer surface of the rotating rod 312. At this time, the diameter of the rotating rod 312 and the elastic bar 311 gradually increases. When the pull rod 213 is about to enter the interior of the right column 121, the curled outer surface of the pull rod 213 will contact the side wall of the swing rod 323, thereby pushing the swing rod 323 to swing on the outer surface of the fixed shaft 314. When the fixed shaft 314 swings, it will push the push bar 322 to move, thereby fixing the pull rod 213 that has entered the interior of the column 121, further improving the stability of the device during operation.

[0038] During the process of the pull rod 213 pulling the scroll 124 to unfold, the rotating shaft 123 will rotate due to the pull of the pull rod 213. As the scroll 124 rotates and extends, its outer surface will contact the outer surface of the rotating wheel 126. Then, when the scroll 124 unfolds, its inner wall will drive the two rotating wheels 126 to rotate on the side wall of the fixed block 125. When the rotating wheels 126 rotate, they will assist the unfolding movement of the scroll 124. The unfolded part of the scroll 124 will be restricted by the rotating wheels 126 to unfold completely and smoothly, so that the scroll 124 can be better laid on the side wall of the support plate 111 when unfolding. This reduces the twisting and folding of the side wall of the scroll 124 during the process of stretching and unfolding the scroll 124, allowing the scroll 124 to unfold better and further improving the utilization efficiency of the scroll 124 of the display board.

[0039] Note: All directional terms used in this article are in the form of ______. Figure 1 The positional relationship in the middle shall prevail.

[0040] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A field display board for lodging resistance with a grid-like support plate and a roll-up function, comprising a main body (1), characterized in that, Also includes: Rotating mechanism (2), which is installed inside the main body (1) and is used to rotate when the main body (1) moves; The retraction mechanism (3) is installed inside the main body (1) and is used to apply a thrust to the rotating mechanism (2) when the retraction mechanism (3) moves to keep the rotating mechanism (2) stable.

2. The anti-lodging field display board with a mesh support plate and roll-up function as described in claim 1, characterized in that: The main body (1) includes: A fixing component (11) is installed on the side wall of the main body (1) for supporting the display scroll; Rotating component (12), which is installed on the side wall of fixed component (11), is used by staff to pull the display scroll to rotate and unfold it.

3. The anti-lodging field display board with a grid-like support plate and roll-up function as described in claim 2, characterized in that: The rotating mechanism (2) includes: Telescopic assembly (21), which is installed on the outer surface of the rotating shaft (123) and is used to extend and retract when the rotating assembly (12) rotates; A rolling component (22) is installed on the side wall of the rotating component (12) for rolling when the rotating component (12) rotates.

4. The anti-lodging field display board with a mesh support plate and roll-up function as described in claim 3, characterized in that: The shrinkage mechanism (3) includes: An auxiliary component (31) is installed on the outer surface of the telescopic component (21) to assist the telescopic component (21) in moving. A swing assembly (32) is installed inside the rotating assembly (12) for swinging when the telescopic assembly (21) moves.

5. The anti-lodging field display board with a grid-like support plate and roll-up function as described in claim 2, characterized in that: The fixing component (11) includes a support plate (111) fixedly connected to the side wall of the main body (1), and the support plate (111) has a plurality of grid grooves (112) inside.

6. The anti-lodging field display board with a grid-like support plate and roll-up function as described in claim 2, characterized in that: The rotating assembly (12) includes columns (121) fixedly connected to the left and right sides of the support plate (111), and a fixing groove (122) is provided on the inner wall of the left column (121). The fixed groove (122) is rotatably connected to a rotating shaft (123), and a scroll (124) is fixedly connected to the outer surface of the rotating shaft (123). The inner wall of the column (121) is fixedly connected to two fixing blocks (125), and a rotating wheel (126) is rotatably connected to the side of the two fixing blocks (125) that are close to each other. Among them, the outer surfaces of the two fixing blocks (125) are in contact with the inner wall of the scroll (124), and the bottom of the left column (121) is bolted with a side door for easy loading and unloading of the scroll.

7. The anti-lodging field display board with a mesh support plate and roll-up function as described in claim 3, characterized in that: The telescopic assembly (21) includes a fixed ring (211) fixedly connected to the outer surface of the rotating shaft (123). The side wall of the fixed ring (211) is provided with an elastic strip (212). A pull rod (213) is fixedly connected to one end of the elastic strip (212) away from the rotating shaft (123). The outer surface of the pull rod (213) is fixedly connected to the end of the scroll (124) away from the rotation axis (123).

8. The anti-lodging field display board with a grid-like support plate and roll-up function as described in claim 3, characterized in that: The rolling assembly (22) includes a connecting rod (221) fixedly connected between two columns (121), and a moving groove (222) is provided on the side wall of the connecting rod (221), and a rolling wheel (223) is slidably connected inside the moving groove (222). The side wall of the rolling wheel (223) is rotatably connected to the side wall of the pull rod (213).

9. The anti-lodging field display board with a grid-like support plate and roll-up function as described in claim 4, characterized in that: The auxiliary component (31) includes an elastic strip (311) fixedly connected to the outer surface of the pull rod (213), and a rotating rod (312) is fixedly connected to one end of the elastic strip (311) away from the telescopic component (21). The outer surface of the rotating rod (312) is rotatably connected to a positioning plate (313), and a fixed shaft (314) is fixedly connected to the side of the positioning plate (313) near the elastic bar (311). The side wall of the rotating rod (312) is rotatably connected to the inner wall of the right column (121), and the side wall of the rotating shaft (123) is fixedly connected to the inner wall of the right column (121).

10. The anti-lodging field display board with a mesh support plate and roll-up function as described in claim 4, characterized in that: The swing assembly (32) includes a plurality of springs (321) fixedly connected to the side wall of the column (121), and a push bar (322) is fixedly connected to one end of the plurality of springs (321) away from the column (121). One of the push bars (322) has a swing rod (323) rotatably connected to its side wall, and the swing rod (323) has a sliding groove (324) inside. The interior of the sliding groove (324) is slidably connected to the outer surface of the fixed shaft (314).

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