Field hauler for agricultural transport

Abstract

The present application relates to the technical field of agricultural transportation, in particular to a kind of transport equipment specially designed for farmland operation, it includes slide rail and stacking transport plate, the top surface of slide rail and the bottom surface center of stacking transport plate are directly contacted, and the two sides of the bottom surface of stacking transport plate are respectively rotationally connected with multiple first connecting rods and second connecting rods, multiple first connecting rods and second connecting rods end are commonly provided with multiple friction blocks, the two sides of the inside of stacking transport plate are rotationally connected with multiple first meshing teeth;By setting compression spring in expansion bracket one side, and its two ends are respectively abutted in telescopic rod and telescopic sleeve, make compression spring elastic force push telescopic rod outward expansion, since telescopic rod and first connecting rod are vertically arranged, the thrust will push first connecting rod to rotate towards slide rail outer wall, in turn be transmitted to friction block, so that it is always pressed tightly slide rail outer wall, so that stacking transport plate can be reliably braked even in the state of friction block wear.

Description

Technical Field

[0001] This invention relates to the field of agricultural input transportation technology, and more specifically, to a field transport vehicle for transporting agricultural inputs. Background Technology

[0002] As one of the key pieces of equipment in mechanized agriculture, field transport vehicles are intelligent agricultural product transport equipment designed specifically for farmland operations. They are mainly used to transport crops, fertilizers, tools and other materials in fields, orchards or rugged terrain in mechanized agriculture. Their structure is usually relatively simple, with a high ground clearance and convenient operation. Using this intelligent agricultural product transport equipment can significantly improve the transport efficiency in mechanized agricultural production and effectively reduce the burden of manual handling.

[0003] According to CN215438354U, a field road and bridge rail transport machine is disclosed, including support feet, rails, housing, receiving frame, adjustment mechanism, connecting assembly, connecting rod, diesel engine, belt and rollers. The adjustment mechanism is located inside the receiving frame, and the adjustment plate can adjust the storage space inside the receiving frame, facilitating the classification and placement of goods. The adjustment plates at both ends can also provide clamping force to the baskets containing goods, improving the stability of the goods during transportation. The push rod in the auxiliary assembly facilitates the clamping of the baskets containing goods by the adjustment plate in the bottom plate, allowing water and sand retained on the surface of the goods to fall downwards. The elastic rod in the clamping assembly can automatically clamp and release farm tools. By setting the connecting assembly on the side of the receiving frame, when the receiving frame is stationary on the rail, the bottom end of the moving rod can automatically reset and press against the rail, improving the stability of the connection between the receiving frame and the rail.

[0004] In the aforementioned device, the support rod and the track are in a rotating contact manner. As the key friction points increase with the use time, they will gradually wear down and the wear will intensify. The support rod will gradually shorten, resulting in a decrease in the effective contact area between the support rod and the track, and the friction will also weaken. This makes it difficult for the support rod to firmly grip the track even if it has not reached its working limit, affecting the stability and positioning accuracy of the transport, and ultimately causing the transport machine to be unable to stay stably above the track.

[0005] Based on this, the present invention discloses a field transport vehicle for transporting agricultural materials. Summary of the Invention

[0006] To address the issues raised in the background art, where the aforementioned devices employ a rotary connection method for contacting the track, leading to continuous wear over long-term use, and as wear intensifies, the effective contact area between the support rod and the track decreases, resulting in a significant drop in friction and potentially causing slippage or inability to be secured to the top of the track during operation, this invention provides a field transport machine for agricultural supplies. This machine includes a slide rail and a stacking transport plate. The top surface of the slide rail directly contacts the center of the bottom surface of the stacking transport plate. Multiple first and second connecting rods are rotatably connected to both sides of the bottom surface of the stacking transport plate. Multiple friction blocks are shared at the ends of the multiple first and second connecting rods. The stacking transport plate has multiple first meshing teeth rotatably connected to both sides inside, and a synchronizing rod rotatably connected to the center inside the stacking transport plate. The ends of the synchronizing rod are each provided with second meshing teeth. An extension bracket is provided on one side of the outer wall of multiple first connecting rods, and a telescopic rod is rotatably connected to one side of the outer wall of the extension bracket. A telescopic sleeve is slidably connected to one end of the outer wall of the telescopic rod. A rotating bracket is rotatably connected to one side of the outer wall of one of the extension brackets, and a rope is fixedly connected to the center of the outer wall of the rotating bracket. A fixing frame is fixedly connected to one side of the bottom surface of the stacking transport plate, and a deep groove and a shallow groove are respectively opened on one side of the outer wall of the fixing frame. A handle is provided in the center of the inside of the fixing frame.

[0007] Since the friction block is the main body of friction fixation, when it comes into contact with the slide rail, it is best to make its own plane tightly against the outer wall of the slide rail. This technical solution adopts multiple first connecting rods and second connecting rods arranged in a parallel and symmetrical manner on both sides of the bottom surface of the stacking transport plate. The first connecting rods and second connecting rods have the same structure, and the distance between the two ends of the first connecting rods and second connecting rods is equal. One end of the first connecting rod and the second connecting rod is rotatably connected to the two sides inside the friction block, and the side of the outer wall of the friction block away from the first connecting rod is tightly fitted with the side of the outer wall of the slide rail.

[0008] As a further improvement to this technical solution, the parallel and symmetrical arrangement of the first and second links ensures that the left and right friction blocks maintain a synchronized movement trajectory. This structure ensures stable contact between the friction blocks and the slide rail when the stacking transport plate moves or brakes. Furthermore, the rotating connection design between the friction blocks and the outer wall of the slide rail allows them to adaptively conform to the track surface, maximizing reliable friction, effectively delaying single-point wear, and extending the lifespan of critical components.

[0009] Based on this, since it is impossible to ensure the synchronicity of clamping or opening of the friction blocks on both sides of the slide rail, once there is a difference in the contact state and friction force between the friction blocks on both sides and the outer wall of the slide rail, this asynchrony will cause uneven force on the stacking transport plate during movement or braking, which may cause equipment deviation or overload of one side of the friction block, accelerating its wear. Therefore, in order to keep the first connecting rods on both sides synchronized when rotating.

[0010] As a further improvement to this technical solution, multiple first meshing teeth are located at the bottom of both ends of the synchronizing rod, and the first meshing teeth and the second meshing teeth mesh with each other. Multiple first meshing teeth are symmetrically distributed on both sides of the inside of the stacking transport plate. The bottom surface of the first meshing teeth penetrates one side of the inside of the stacking transport plate, and the center of the bottom surface of the first meshing teeth is fixedly connected to the top surface of the first connecting rod away from the friction block.

[0011] Based on this, since the friction block will not actively stick to the slide rail without a power source, there will be a lack of effective continuous contact pressure between it and the outer wall of the slide rail. This may cause the stacking transport plate to slide or lack sufficient braking force when it needs to be stationary. In order to ensure the reliable existence of friction and maintain tight contact without additional power source, the stacking transport plate is fixed stationary on the top of the slide rail.

[0012] As a further improvement to this technical solution, one end of the telescopic rod penetrates through the center of the telescopic sleeve, and the one end of the telescopic rod is slidably connected to the center of the telescopic sleeve.

[0013] The end of the telescopic sleeve furthest from the extension bracket is rotatably connected to one side of the bottom surface of the stacking transport plate via a pivot. Both the telescopic sleeve and the telescopic rod are perpendicular to the first connecting rod. A compression spring is fitted on the outer wall of the telescopic rod, and the two ends of the compression spring abut against one end of the telescopic sleeve and one end of the telescopic rod, respectively.

[0014] To allow the friction block to fit or separate from the slide rail according to actual needs;

[0015] As a further improvement to this technical solution, the end of the rope away from the rotating bracket is fixedly connected to one end of the handle, and the rope is rotatably connected to one side of the extension bracket through the rotating bracket. A circular perforation is opened in the center of the fixed bracket, and the inner wall of the circular perforation is tightly fitted to one end of the outer wall of the handle. The outer wall of the handle is slidably connected to the inner wall of the circular perforation. Multiple limiting blocks are added to both sides of the outer wall of the handle, and the limiting blocks are located inside the deep groove.

[0016] The shape of the limiting block matches the inner walls of the deep groove and the shallow groove, and the outer wall of the limiting block is slidably connected to the inner wall of the deep groove. The angle difference between the deep groove and the shallow groove is 90°.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. In this field transport machine used for agricultural supplies transportation, a compression spring is installed on one side of the extension bracket, with its two ends abutting against the telescopic rod and telescopic sleeve respectively. The spring force pushes the telescopic rod to extend outward. Since the telescopic rod is perpendicular to the first connecting rod, this thrust pushes the first connecting rod to rotate towards the outer wall of the slide rail, which is then transmitted to the friction block, ensuring that it always presses tightly against the outer wall of the slide rail. Even when the friction block is worn, the stacked transport plate can still adhere tightly to the outer wall of the slide rail, achieving reliable braking and stopping at the top of the slide rail. Even in a long-term, high-frequency working environment, as long as the friction block is not completely worn, it can still provide reliable braking force for the stacked transport plate. When the friction block's thickness decreases due to wear, the spring pushes the telescopic rod to extend automatically, forcing the first connecting rod to continue rotating, ensuring that the remaining part of the friction block always presses tightly against the inner wall of the slide rail. This ensures that there is always friction between the friction block and the slide rail, significantly extending the effective working cycle of the friction block in intelligent agricultural product transportation operations and reducing maintenance frequency.

[0019] 2. In this field transport machine used for agricultural materials transportation, a synchronizing rod is set between multiple first connecting rods to achieve forced linkage between the first connecting rods on both sides. The two ends of the synchronizing rod mesh with the first meshing teeth at the top of the first connecting rod through the second meshing teeth. When any one of the first connecting rods moves, the first meshing teeth at its top drive the synchronizing rod to rotate, and then drive the first connecting rod symmetrical to it to move synchronously through the second meshing teeth at the other end. When this intelligent agricultural product transport device is in the condition of slope transport or mechanized agricultural transport with uneven load, the synchronizing rod can force the left and right friction blocks to clamp or loosen the slide rail at the same amount, eliminating the risk of transport path deviation or overturning caused by unilateral action lag, and ensuring the stability of intelligent agricultural product transport under complex terrain.

[0020] 3. In this field transport machine used for agricultural materials transportation, when the friction block is not required to provide braking, the handle can be pulled outward to disengage the limiting block from the deep groove. The handle can then be rotated 90° to embed the limiting block into the shallow groove. This operation is achieved by the rope pulling the first connecting rod to rotate, causing the friction block to disengage from the inner wall of the slide rail. At this time, the telescopic rod is reset under the action of the compression spring, completely relieving the pressure of the friction block on the slide rail and enabling the stacked transport plate to slide freely. This is extremely convenient for the intelligent transportation of agricultural products during unloaded transfer, manual pushing, or downhill inertial sliding in mechanized agricultural equipment. It can completely eliminate the power restriction of the friction block on the stacked transport plate and significantly reduce the overall energy consumption of the stacked transport plate in the process of transporting materials in mechanized agriculture. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the bottom three-dimensional structure of the stacking transport plate of the present invention;

[0023] Figure 3This is a partial cross-sectional view of the slide rail and friction block of the present invention;

[0024] Figure 4 This is a partial three-dimensional structural schematic diagram of the first and second connecting rods of the present invention;

[0025] Figure 5 This is a partial three-dimensional structural schematic diagram of the compression spring of the present invention;

[0026] Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the stacking transport plate of the present invention;

[0027] Figure 7 This is a partial three-dimensional structural diagram of the first meshing tooth of the present invention;

[0028] Figure 8 This is a partial three-dimensional structural diagram of the extension bracket and rope of the present invention;

[0029] Figure 9 This is a partial three-dimensional structural diagram of the limiting block of the present invention;

[0030] Figure 10 This is a partial cross-sectional three-dimensional structural diagram of the fixing frame of the present invention;

[0031] Figure 11 This is a partial three-dimensional structural diagram of the deep and shallow grooves of the present invention.

[0032] The meanings of the labels in the diagram are as follows:

[0033] 1. Slide rail; 2. Stacking transport plate; 201. First connecting rod; 202. Second connecting rod; 203. Friction block; 3. First meshing tooth; 301. Synchronizing rod; 302. Second meshing tooth; 4. Extension bracket; 401. Telescopic rod; 4011. Telescopic sleeve; 4012. Compression spring; 402. Rotating bracket; 4021. Rope; 4022. Fixing frame; 4023. Deep groove; 4024. Shallow groove; 4025. Handle; 4026. Circular perforation; 4027. Limiting block. Detailed Implementation

[0034] 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.

[0035] The existing support rods and tracks use a rotational contact method. Over time, the wear at the contact end of the support rods will gradually increase, resulting in a decrease in the effective contact area between the support rods and tracks. The friction will also weaken, making it difficult for the support rods to firmly grip the tracks, affecting the stability and positioning accuracy of the transport, and ultimately causing the transport vehicle to be unable to stay stably above the tracks.

[0036] Therefore, this invention provides a field transport vehicle for transporting agricultural supplies, see [link to relevant documentation]. Figures 1-11 As shown, it includes a slide rail 1 and a stacking transport plate 2. The top surface of the slide rail 1 is in direct contact with the center of the bottom surface of the stacking transport plate 2. Multiple first connecting rods 201 and second connecting rods 202 are rotatably connected to both sides of the bottom surface of the stacking transport plate 2. Multiple friction blocks 203 are provided at the ends of the multiple first connecting rods 201 and second connecting rods 202. Multiple first meshing teeth 3 are rotatably connected to both sides of the inside of the stacking transport plate 2. A synchronizing rod 301 is rotatably connected to the center of the inside of the stacking transport plate 2. Second meshing teeth 302 are added to both ends of the synchronizing rod 301. Multiple first connecting rods 201 An extension bracket 4 is added to one side of the outer wall, and a telescopic rod 401 is rotatably connected to one side of the outer wall of the extension bracket 4. A telescopic sleeve 4011 is slidably connected to one end of the outer wall of the telescopic rod 401. A rotating bracket 402 is rotatably connected to one side of the outer wall of one of the extension brackets 4, and a rope 4021 is fixedly connected to the center of the outer wall of the rotating bracket 402. A fixed frame 4022 is fixedly connected to one side of the bottom surface of the stacking transport plate 2, and a deep groove 4023 and a shallow groove 4024 are respectively opened on one side of the outer wall of the fixed frame 4022. A handle 4025 is provided in the center of the inside of the fixed frame 4022.

[0037] For details, see Figures 3-4 As shown, multiple first connecting rods 201 and second connecting rods 202 are arranged in a parallel and symmetrical manner on both sides of the bottom surface of the stacking transport plate 2. The first connecting rods 201 and second connecting rods 202 have the same structure, and the distance between the two ends of the first connecting rods 201 and second connecting rods 202 is equal. One end of the first connecting rod 201 and the second connecting rod 202 is rotatably connected to the two sides inside the friction block 203, and the side of the outer wall of the friction block 203 away from the first connecting rod 201 is tightly fitted with the side of the outer wall of the slide rail 1.

[0038] During operation, the stacking transport plate 2 moves along the slide rail 1. The first connecting rod 201 and the second connecting rod 202, which are parallel and symmetrical on both sides, push the friction block 203 to press against the outer wall of the slide rail 1. The friction block 203 rotates to press against the outer wall of the slide rail 1. When needed or when stopping, the friction blocks 203 on both sides can press against the outer wall of the slide rail 1 to generate clamping force and achieve precise stopping by using the friction of the friction blocks 203 against the outer wall of the slide rail 1. At the same time, the symmetrical layout can make the pressure on both sides of the slide rail even, preventing the equipment from shifting or derailing due to excessive friction on one side.

[0039] Further, see Figures 6-7 As shown, multiple first meshing teeth 3 are located at the bottom of both ends of the synchronizing rod 301, and the first meshing teeth 3 and the second meshing teeth 302 mesh with each other. The multiple first meshing teeth 3 are symmetrically distributed on both sides of the inside of the stacking transport plate 2. The bottom surface of the first meshing teeth 3 penetrates one side of the inside of the stacking transport plate 2, and the center of the bottom surface of the first meshing teeth 3 is fixedly connected to the top surface of the first connecting rod 201 away from the friction block 203.

[0040] During operation, when the first connecting rod 201 on one side moves, the first meshing tooth 3 at its top drives the second meshing tooth 302 on the synchronizing rod 301 to rotate, forcing the first meshing tooth 3 on the other side to move in a symmetrical manner, achieving complete synchronization. Through the combined action of the first connecting rod 201, the second connecting rod 202 and the synchronizing rod 301, the risk of deviation or overturning caused by unilateral movement lag can be eliminated, ensuring that the friction force on both sides of the slide rail 1 is balanced.

[0041] Among them, see Figure 5 As shown, one end of the telescopic rod 401 passes through the center of the telescopic sleeve 4011, and the one end of the telescopic rod 401 is slidably connected to the center of the telescopic sleeve 4011.

[0042] The end of the telescopic sleeve 4011 away from the extension bracket 4 is rotatably connected to one side of the bottom surface of the stacking transport plate 2 via a pivot. Both the telescopic sleeve 4011 and the telescopic rod 401 are perpendicular to the first connecting rod 201. A compression spring 4012 is sleeved on the outer wall of the telescopic rod 401, and the two ends of the compression spring 4012 abut against one end of the telescopic sleeve 4011 and one end of the telescopic rod 401, respectively.

[0043] During operation, the compression spring 4012 is always in a compressed state, and its elastic force pushes the telescopic rod 401 to extend outward. Since the telescopic rod 401 is perpendicular to the first connecting rod 201, the compression spring 4012 applies continuous pressure to the first connecting rod 201, forcing the friction block 203 to press tightly against the slide rail 1. Even if the friction block 203 wears and becomes thinner, under the action of the compression spring 4012, the compression spring 4012 automatically extends, which can compensate for the thickness loss of the friction block 203 after wear. During use, technicians do not need to frequently observe the wear of the friction block 203. Traditional support rods have a fixed maximum range of motion, and technicians need to frequently observe whether the support rod can still contact the slide rail 1. In addition, the pure compression spring 4012 structure provides continuous preload without the need for an external power source, making it suitable for environments without electricity such as farmland, orchards, and terraced fields, reducing energy consumption, and maintaining a braking state when stopped to avoid the risk of slippage.

[0044] Among them, see Figures 8-11As shown, the end of the rope 4021 away from the rotating bracket 402 is fixedly connected to one end of the handle 4025, and the rope 4021 is rotatably connected to one side of the extension bracket 4 through the rotating bracket 402. A circular perforation 4026 is provided in the center of the fixed frame 4022, and the inner wall of the circular perforation 4026 is tightly fitted to one end of the outer wall of the handle 4025. The outer wall of the handle 4025 is slidably connected to the inner wall of the circular perforation 4026. Multiple limiting blocks 4027 are added to both sides of the outer wall of the handle 4025, and the limiting blocks 4027 are located inside the deep groove 4023.

[0045] The shape of the limiting block 4027 fits into the inner walls of the deep groove 4023 and the shallow groove 4024, and the outer wall of the limiting block 4027 is slidably connected to the inner wall of the deep groove 4023. The angle difference between the deep groove 4023 and the shallow groove 4024 is 90°.

[0046] During operation, the handle 4025 is locked in the deep groove 4023 by the limiting block 4027. At this time, the rope 4021 is in a slack state, and the friction block 203 remains in contact with the slide rail 1. When the brake needs to be released, the handle 4025 is pulled outward and rotated 90° so that the limiting block 4027 is embedded in the shallow groove 4024. The rope 4021 pulls the extension bracket 4 to pull the first connecting rod 201, which causes the friction block 203 to disengage from the slide rail 1, thus achieving free sliding.

[0047] In summary, this effectively solves the problem that existing rotary contact systems cause key components to gradually wear down during continuous use, reducing the effective contact area between the support rod and the track, weakening friction, making it difficult for the support rod to firmly grip the track, and ultimately preventing the transport vehicle from staying stably above the track.

[0048] Working principle: During operation, the stacking transport plate 2 moves along the slide rail 1. The first connecting rod 201 and the second connecting rod 202, which are parallel and symmetrical on both sides of its bottom, push the friction block 203 to press against the outer wall of the slide rail 1. The two ends of the synchronizing rod 301 engage with the first engaging tooth 3 at the top of the first connecting rod 201 through the second engaging tooth 302, forcing the first connecting rods 201 on both sides to move synchronously. The compression spring 4012 continuously pushes the telescopic rod 401 to extend outward, acting vertically on the first connecting rod 201 to maintain a constant pressure on the friction block 203. Even if wear occurs, the gap can be automatically compensated. When the limit block 4027 of the handle 4025 is locked in the deep groove 4023, it remains in contact with the friction block 203. After being pulled out and rotated 90° to embed into the shallow groove 4024, the rope 4021 pulls the rotating bracket 402 to pull the extension bracket 4, so that the friction block 203 is disengaged from the slide rail 1 and can slide freely.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A field transport machine for transporting agricultural materials, comprising a slide rail (1) and a stacking transport plate (2), characterized in that: The top surface of the slide rail (1) is in direct contact with the center of the bottom surface of the stacking transport plate (2), and multiple first connecting rods (201) and second connecting rods (202) are rotatably connected to both sides of the bottom surface of the stacking transport plate (2). Multiple friction blocks (203) are provided at the ends of the multiple first connecting rods (201) and second connecting rods (202). Multiple first meshing teeth (3) are rotatably connected to both sides of the inside of the stacking transport plate (2), and a synchronizing rod (301) is rotatably connected to the center of the inside of the stacking transport plate (2). Second meshing teeth (302) are added to both ends of the synchronizing rod (301), and multiple first meshing teeth (302) are added to one side of the outer wall of the multiple first connecting rods (201). An extension bracket (4) is provided, and a telescopic rod (401) is rotatably connected to one side of the outer wall of the extension bracket (4). A telescopic sleeve (4011) is slidably connected to one end of the outer wall of the telescopic rod (401). A rotating bracket (402) is rotatably connected to one side of the outer wall of one of the extension brackets (4). A rope (4021) is fixedly connected to the center of the outer wall of the rotating bracket (402). A fixed frame (4022) is fixedly connected to one side of the bottom surface of the stacking transport plate (2). A deep groove (4023) and a shallow groove (4024) are respectively opened on one side of the outer wall of the fixed frame (4022). A handle (4025) is provided in the center of the inside of the fixed frame (4022). Multiple first meshing teeth (3) are located at the bottom of both ends of the synchronizing rod (301), and the first meshing teeth (3) and the second meshing teeth (302) mesh with each other. Multiple first meshing teeth (3) are symmetrically distributed on both sides of the inside of the stacking transport plate (2). The bottom surface of the first meshing teeth (3) penetrates one side of the inside of the stacking transport plate (2), and the center of the bottom surface of the first meshing teeth (3) is fixedly connected to the top surface of the first connecting rod (201) away from the friction block (203). One end of the telescopic rod (401) penetrates the center inside of the telescopic sleeve (4011), and one end of the telescopic rod (401) is slidably connected to the center inside of the telescopic sleeve (4011). The end of the telescopic sleeve (4011) away from the extension bracket (4) is rotatably connected to one side of the bottom surface of the stacking transport plate (2) via a pivot. The telescopic sleeve (4011) and the telescopic rod (401) are both perpendicular to the first connecting rod (201). A compression spring (4012) is sleeved on the outer wall of the telescopic rod (401), and the two ends of the compression spring (4012) abut against one end of the telescopic sleeve (4011) and one end of the telescopic rod (401), respectively. The end of the rope (4021) away from the rotating bracket (402) is fixedly connected to one end of the handle (4025), and the rope (4021) is rotatably connected to one side of the extension bracket (4) via the rotating bracket (402).

2. The field transport vehicle for agricultural supplies according to claim 1, characterized in that: Multiple first connecting rods (201) and second connecting rods (202) are arranged in a parallel and symmetrical manner on both sides of the bottom surface of the stacking transport plate (2). The first connecting rods (201) and second connecting rods (202) have the same structure, and the distance between the two ends of the first connecting rods (201) and second connecting rods (202) is equal.

3. The field transport vehicle for agricultural supplies according to claim 2, characterized in that: One end of the first connecting rod (201) and the second connecting rod (202) is rotatably connected to the two sides inside the friction block (203), and the side of the outer wall of the friction block (203) away from the first connecting rod (201) is tightly fitted to the side of the outer wall of the slide rail (1).

4. The field transport vehicle for transporting agricultural materials according to claim 1, characterized in that: The fixing frame (4022) has a circular perforation (4026) in the center, and the inner wall of the circular perforation (4026) is tightly fitted to one end of the outer wall of the handle (4025). The outer wall of the handle (4025) is slidably connected to the inner wall of the circular perforation (4026).

5. The field transport vehicle for transporting agricultural materials according to claim 4, characterized in that: Multiple limiting blocks (4027) are added to both sides of the outer wall of the grip (4025), and the limiting blocks (4027) are located inside the deep groove (4023); The shape of the limiting block (4027) fits into the inner walls of the deep groove (4023) and the shallow groove (4024), and the outer wall of the limiting block (4027) is slidably connected to the inner wall of the deep groove (4023). The angle difference between the deep groove (4023) and the shallow groove (4024) is 90°.

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