Foldable belt conveyor and method for folding the same

Abstract

This invention discloses a foldable belt conveyor and its folding method. The conveyor includes: a base frame having a horizontal section and an inclined fixed transition section; a conveying boom hinged to the transition section; a swing base frame hinged to the base frame; a support frame detachably connected to the swing base frame, with an angle-changing fixing sleeve slidably mounted on its upper end; an angle-adjusting crossbeam between the fixing sleeves; the crossbeam being detachably connected to the conveying boom and locked in its sliding position by locking screws; and a conveying system and a feed hopper. Folding only requires removing the feed hopper, loosening the locking screws and disconnecting the crossbeam from the boom, disconnecting the support frame from the swing base frame, swinging the boom parallel to the base frame, and then flipping the swing base frame to fit against the outside of the boom. This invention has a simple structure; folding only requires removing the feed hopper; the folded form is compact and can be transported by ordinary trucks; the angle can be flexibly adjusted on-site, saving transportation costs, installation time, and labor.

Description

Technical Field

[0001] This invention relates to the field of material conveying equipment technology, specifically to a foldable belt conveyor and its folding method, which is particularly suitable for conveying bulk materials in industries such as agriculture, grain, and building materials, and can realize rapid folding and on-site angle adjustment. Background Technology

[0002] Belt conveyors are widely used in the conveying of bulk materials in industries such as grain, mining, and building materials. In agriculture, belt conveyors often require adjustments to their installation position and conveying angle based on on-site equipment and operating conditions, and frequent relocation is necessary. Therefore, high demands are placed on their portability and on-site installation flexibility.

[0003] Existing foldable belt conveyors typically have complex folding mechanisms. Before folding and transporting, multiple components such as the feed hopper and side guards often need to be disassembled, making the operation cumbersome, time-consuming, and prone to loss or damage. Reinstallation requires recalibration. Furthermore, the folded shape is not compact enough, and the overall size often exceeds the transport limits of ordinary trucks, significantly increasing relocation costs. In addition, when installed at different work sites, the working angle of the conveyor boom is often difficult to adjust flexibly and precisely due to differences in the distance and height of upstream and downstream equipment. Some devices, while having angle adjustment functions, rely on complex mechanisms such as hydraulic cylinders or lead screws, resulting in bulky and costly structures. Other devices lack angle adjustment capabilities altogether, operating only at a fixed angle, unable to adapt to site spacing requirements, necessitating the construction of additional transition mechanisms or site modifications, further increasing installation time and costs.

[0004] Therefore, there is an urgent need to provide a foldable belt conveyor with a simple structure, convenient folding operation, only requiring the removal of the feed hopper before folding, and flexible on-site angle adjustment, as well as its folding method. Summary of the Invention

[0005] This invention provides a foldable belt conveyor and its folding method, aiming to solve the technical problems of complex folding structure, cumbersome operation, need to disassemble multiple parts before folding, and inconvenience of on-site angle adjustment in the prior art, thereby achieving the purpose of simple structure, convenient folding operation (only the feed hopper needs to be removed), and flexible on-site angle adjustment.

[0006] To achieve the above-mentioned technical objectives, on the one hand, the present invention provides a foldable belt conveyor, including a frame system and a conveying system mounted on the frame system; The rack system includes: The base frame has a horizontal main body section and an upwardly inclined fixed transition section located at one end and integrally connected to the horizontal main body section; The lower end of the conveyor boom is hinged to the fixed transition section of the base frame via a first hinge shaft. The swing base frame is hinged at one end to the end of the base frame near the fixed transition section via a second hinge shaft. A support frame is provided, the lower end of which is detachably connected to a swing base frame. Angle-changing fixing sleeves are slidably provided on the upper ends of the front and rear sides of the support frame. The angle-changing fixing sleeves are provided with locking screws for locking their sliding positions. An angle-adjusting crossbeam is installed between the angle-changing fixing sleeves. The angle-adjusting crossbeam is detachably connected to the conveyor arm. The conveying system includes a ring conveyor belt, a driven roller mounted on the base frame at one end away from the fixed transition section, a driving roller mounted on the upper end of the conveyor arm, a drive motor connected to the driving roller, and a turning pressure roller assembly mounted on the fixed transition section of the base frame. And a feed hopper that can be detachably mounted on top of the base frame.

[0007] Furthermore, the upper branch of the annular conveyor belt is located above the base frame and the conveyor arm, and the lower branch is located below the base frame and the conveyor arm; multiple guide rollers are spaced apart above the upper branch, and multiple guide rollers are spaced apart below the lower branch.

[0008] Furthermore, the turning pressure roller assembly includes a large turning pressure roller disposed above the lower branch of the annular conveyor belt, and two small turning pressure rollers disposed above the upper branch of the annular conveyor belt.

[0009] Furthermore, the bottom of the base frame and the swing frame are respectively equipped with casters.

[0010] Furthermore, it also includes a leaf distribution assembly located above the conveyor boom. The leaf distribution assembly includes a leaf distribution device, a leaf distribution motor, and a lifting adjustment seat. The lifting adjustment seat is fixed on the conveyor boom and is used to adjust the gap between the leaf distribution device and the upper surface of the annular conveyor belt.

[0011] Furthermore, belt tensioning mechanisms are respectively provided at the bearing seats of the driving roller and the driven roller. The belt tensioning mechanism includes an adjusting screw and an adjusting nut. One end of the adjusting screw abuts against or is fixedly connected to the bearing seat, and the adjusting nut is screwed onto the adjusting screw and abuts against the baffle on the base frame or the conveyor arm.

[0012] Furthermore, a quick-release connection structure is provided between the feed hopper and the base frame. The quick-release connection structure includes a mounting base fixed on the base frame and an eccentric wheel locking unit located between the mounting base and the feed hopper.

[0013] Furthermore, the eccentric wheel locking unit includes an eccentric wheel handle, a locking block, a first rotating shaft, and a second rotating shaft; the eccentric wheel handle is rotatably mounted on the mounting base via the first rotating shaft; the locking block is L-shaped, with one end rotatably mounted on the mounting base via the second rotating shaft, and the other end being a free end for insertion into a groove provided on the side of the feed hopper.

[0014] Furthermore, the quick-release connection structure is equipped with two sets of eccentric wheel locking units on each side of the feed hopper.

[0015] On the other hand, the present invention provides a folding method for a foldable belt conveyor, comprising the following steps: S1: Remove the feed hopper; S2: Loosen the locking screws, release the locking of the angle-changing fixing sleeve, and disconnect the angle adjusting beam from the conveyor boom; S3: Disconnect the support frame from the swing base frame; S4: Swing the conveyor boom around the first hinge axis toward the base frame until the conveyor boom is parallel to the base frame; S5: Flip the swing base frame around the second hinge axis toward the base frame so that it is tilted and fits against the outside of the conveyor arm.

[0016] Compared with the prior art, the present invention provides a foldable belt conveyor and its folding method, which has the following beneficial effects: 1. The present invention adopts a three-section articulated frame structure consisting of a base frame, a conveyor arm, a support frame and a swing base. In the working state, it can form a stable three-point support. During transportation, it can be compactly folded by simple manual swinging, thus taking into account both working stability and transportation portability.

[0017] 2. The folding operation of this invention does not require disassembling multiple parts. Only the feed hopper needs to be removed, and the folding can be completed in five steps. The operation is simple and quick. After folding, the conveyor arm and the base frame are stacked parallel to each other, and the swing base frame is flipped and attached to the outside. The overall length of the machine is greatly shortened, and it can be transported by ordinary trucks, which significantly reduces transportation costs. At the same time, the folding operation only requires the removal of the feed hopper, which is simple and saves time and labor for relocation.

[0018] 3. This invention uses an angle-changing fixing sleeve that can slide up and down at the upper end of the support frame to drive the angle adjustment beam to rise and fall, thereby realizing rapid coarse adjustment of the conveying boom angle. It does not require a complicated mechanism, is easy to operate, and can flexibly adjust the conveying angle according to the actual distance between upstream and downstream equipment on site, which greatly saves installation time and labor costs.

[0019] 4. By setting an eccentric wheel locking unit between the feed hopper and the base frame, the present invention enables tool-free quick assembly and disassembly of the feed hopper, further improving the efficiency of folding preparation and changing feed hoppers of different specifications. Attached Figure Description

[0020] The present invention will now be described with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention in its working state.

[0022] Figure 2 This is a frontal sectional view of the overall structure of the present invention in its working state.

[0023] Figure 3 This is a schematic diagram of the rack system in the working state of the present invention.

[0024] Figure 4 This is a schematic diagram of the frame system in the folded state in this invention.

[0025] Figure 5 This is a schematic diagram of the quick-release connection structure in the locked state in this invention.

[0026] Figure 6 This is a schematic diagram of the quick-release connection structure in the unlocked state in this invention.

[0027] In the diagram: 1-Base frame; 2-Conveying arm; 3-Supporting frame; 4-Swing base frame; 5-Angle changing fixing sleeve; 6-Angle adjusting crossbeam; 7-Locking screw; 8-Circular conveyor belt; 9-Driven roller; 10-Driven roller; 11-First hinge shaft; 12-Second hinge shaft; 13-Feed hopper; 14-Universal wheel; 15-Wheel distributor; 16-Wheel distributor motor; 17-Lifting adjustment seat; 18-Mounting seat; 19-Eccentric wheel handle; 20-Locking block; 21-First rotating shaft; 22-Second rotating shaft; 23-Drive motor; 24-Guide pressure roller; 25-Guide support roller; 26-Turning large pressure roller; 27-Turning small pressure roller; 28-Adjusting screw; 29-Adjusting nut; 30-Discharge hopper; 31-Groove. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The described embodiments are merely 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.

[0029] like Figure 1 and Figure 2As shown, the present invention provides a foldable belt conveyor, including a frame system and a conveying system mounted on the frame system.

[0030] The frame system mainly consists of four parts: a base frame 1, a conveyor arm 2, a support frame 3, and a swing base frame 4. The base frame 1 has a horizontal main section and a fixed transition section located at one end (the right end in this embodiment) and welded to the horizontal main section, which is inclined upwards. The inclination angle of this fixed transition section is usually 10° to 15°, which is used to achieve a smooth transition of the conveyor belt from the horizontal direction to the inclined direction. At the same time, the inclined setting of this fixed transition section can provide sufficient installation space for the turning pressure roller assembly, avoid interference with the horizontal main section of the base frame, and ensure smooth operation of the belt at the turning point.

[0031] like Figure 3 As shown, the lower end of the conveying boom 2 is hinged to the fixed transition section of the base frame 1 through the first hinge shaft 11, so that the conveying boom 2 can swing up and down in the vertical plane around the first hinge shaft 11, thereby changing the angle between it and the horizontal plane.

[0032] One end (left end) of the swing base frame 4 is hinged to the end of the base frame 1 near the fixed transition section (i.e., the right end of the base frame 1) via the second hinge shaft 12. The lower end of the support frame 3 is fixed to the swing base frame 4 by a detachable connection such as bolts. The support frame 3 is a portal frame structure, with angle-changing fixing sleeves 5 slidably installed on the upper ends of its front and rear sides, each angle-changing fixing sleeve 5 having a locking screw 7 for locking its sliding position. An angle-adjusting crossbeam 6 is installed between the two angle-changing fixing sleeves 5. The middle part of the angle-adjusting crossbeam 6 is connected to the lower side of the conveyor arm 2 by a detachable connector (e.g., screws or bolts).

[0033] When it is necessary to adjust the working angle of the conveyor boom 2, first loosen the locking screws 7 on both sides, then rotate the angle adjustment beam 6 to make it parallel and tightly fitted with the lower side of the conveyor boom 2, and finally tighten the locking screws 7 to lock the angle adjustment beam 6 in the desired position. At this time, the angle adjustment beam 6 supports the conveyor boom 2 on the support frame 3 through the connector, thereby fixing the working angle of the conveyor boom 2.

[0034] from Figure 1 and Figure 2As can be seen, the conveying system includes a circular conveyor belt 8, a driven roller 9, a driving roller 10, a drive motor 23, and a turning pressure roller assembly. The driven roller 9 is installed at the end of the base frame 1 furthest from the fixed transition section (i.e., the left end), and the driving roller 10 is installed at the upper end of the conveyor arm 2. The drive motor 23 is connected to the driving roller 10 and drives the driving roller 10 to rotate, thereby driving the circular conveyor belt 8. A discharge hopper 30 is also provided below the upper end of the conveyor arm 2 to guide the material conveyed to the top to the next device or a collection container. The upper branch of the circular conveyor belt 8 is located above the base frame 1 and the conveyor arm 2 and is used to carry materials; the lower branch is located below the base frame 1 and the conveyor arm 2 and is used for return. To guide the belt to run smoothly, multiple guide rollers 24 are spaced apart above the upper branch along the conveying direction to press down on the upper branch belt from top to bottom, preventing the belt from floating or running off-center during material conveying; multiple guide rollers 25 are spaced apart below the lower branch along the conveying direction to support the lower branch belt from bottom to top, preventing the belt from sagging or jumping when returning unloaded.

[0035] A turning pressure roller assembly is installed at the fixed transition section of the base frame 1. For example... Figure 1 As shown, the turning pressure roller assembly includes one large turning pressure roller 26 and two small turning pressure rollers 27. The large turning pressure roller 26 is positioned above the lower branch of the annular conveyor belt 8 to guide the lower branch belt to transition smoothly at the turning point; the two small turning pressure rollers 27 are positioned above the upper branch of the annular conveyor belt 8 to guide the upper branch belt to transition smoothly at the turning point. Through the synergistic action of the large turning pressure roller 26 and the small turning pressure rollers 27, the belt can be effectively prevented from arching or deviating due to a change in direction at the fixed transition section, ensuring the stable operation of the conveying system.

[0036] To facilitate belt tension adjustment, belt tensioning mechanisms are installed at the bearing seats of both the drive roller 10 and the driven roller 9. Each belt tensioning mechanism includes an adjusting screw 28 and an adjusting nut 29. Taking the driven roller 9 as an example, one end of the adjusting screw 28 abuts against or is fixedly connected to the bearing seat. The adjusting screw 28 passes through a baffle fixed to the base frame 1, and the adjusting nut 29 is screwed onto the adjusting screw 28, abutting against the inner and outer sides of the baffle. When belt tensioning is required, the adjusting nut 29 is turned, causing the adjusting screw 28 to move outward, thereby pushing the bearing seat away from the drive roller 10, increasing the center distance between the two rollers, and thus tensioning the annular conveyor belt 8. The tensioning mechanism at the end of the drive roller 10 operates on the same principle, with its adjusting screw 28 engaging with a baffle on the conveyor arm 2.

[0037] To accommodate the uniform conveying of different materials, this conveyor is also equipped with a vane distributor assembly. For example... Figure 1 and Figure 2As shown, the leaf distribution assembly includes a leaf distribution device 15, a leaf distribution motor 16, and a lifting adjustment seat 17. The lifting adjustment seat 17 is fixed to the conveyor arm 2, the leaf distribution device 15 is suspended above the upper branch of the annular conveyor belt 8, and the leaf distribution motor 16 is fixed to the lifting adjustment seat 17 and drives the leaf distribution device 15 to rotate. The lifting adjustment seat 17 can adjust the gap between the leaf distribution device 15 and the upper surface of the annular conveyor belt 8 according to the particle size and flowability of the material, thereby achieving uniform material distribution and preventing excessive or uneven material accumulation.

[0038] The feed hopper 13 is detachably mounted on the upper left side of the base frame 1, above the driven roller 9, so that materials can fall directly into the circular conveyor belt 8. To facilitate quick assembly and disassembly of the feed hopper 13, a quick-release connection structure is provided between the feed hopper 13 and the base frame 1. For example... Figure 5 and Figure 6 As shown, the quick-release connection structure includes a mounting base 18 fixed to the base frame 1 and an eccentric wheel locking unit disposed between the mounting base 18 and the feed hopper 13. The feed hopper 13 has a vertically downward-facing flange 27 on its side, with an upward-facing groove 31 on the flange 27. In this embodiment, two sets of eccentric wheel locking units are provided on each side of the feed hopper 13, and the two sets of units operate synchronously. Each set of eccentric wheel locking units includes an eccentric wheel handle 19, a locking block 20, a first rotating shaft 21, and a second rotating shaft 22. The mounting base 18 has two mounting holes; the first rotating shaft 21 passes through the lower mounting hole, and the second rotating shaft 22 passes through the upper mounting hole. The eccentric wheel handle 19 is rotatably mounted to the mounting base 18 via the first rotating shaft 21. The locking block 20 is L-shaped, with one end rotatably mounted to the mounting base 18 via the second rotating shaft 22, and the other end being a free end for insertion into the groove 31 on the side of the feed hopper 13.

[0039] The eccentric wheel handle 19 has a small radius area and a large radius area. For example... Figure 5 As shown, in the locked state, the small radius area of ​​the eccentric wheel handle 19 faces upward (the tail of the handle is in a horizontal rightward position). The locking block 20, under its own weight, swings downward around the second pivot 22, causing its short arm to insert into the upward-opening groove 31, thereby locking and fixing the feed hopper 13. At this time, the feed hopper 13 cannot be removed upward. Figure 6 As shown, in the unlocked state, pull down the eccentric wheel handle 19 so that its large radius area faces upward. The large radius area pushes up the long arm of the locking block 20, causing the locking block 20 to swing upward around the second pivot 22. Its short arm is pulled upward from the groove 31 and disengaged from the groove 31, allowing the feed hopper 13 to be removed upward. The entire disassembly and assembly process requires no tools and is very simple to operate.

[0040] The following is combined with Figure 3 and Figure 4 The folding method of the present invention is described in detail.

[0041] When this conveyor needs to be folded for transport, first perform step S1: remove the feed hopper 13. Pull down the eccentric wheel handles 19 on both sides to remove the feed hopper 13.

[0042] Next, proceed to step S2: Loosen the locking screw 7 to release the locking of the angle-changing fixing sleeve 5, and disconnect the angle-adjusting beam 6 from the conveyor boom 2. Specifically, loosen the locking screw 7 on the angle-changing fixing sleeve 5 so that the angle-changing fixing sleeve 5 can slide up and down along the support frame 3; at the same time, remove the connecting screw between the middle of the angle-adjusting beam 6 and the conveyor boom 2, so that the two are no longer fixedly connected.

[0043] Then proceed to step S3: Disconnect the connection between the support frame 3 and the swing base 4. Remove the connecting bolts between the lower end of the support frame 3 and the swing base 4, so that the support frame 3 and the swing base 4 are completely separated.

[0044] Then, step S4 is executed: the conveyor arm 2 is swung around the first hinge axis 11 towards the base frame 1 (i.e., to the lower left) until the conveyor arm 2 is parallel to the base frame 1. At this time, the conveyor arm 2 is placed flat on top of the base frame 1, and the two are stacked one on top of the other.

[0045] Finally, perform step S5: Flip the swing base 4 around the second hinge axis 12 towards the base frame 1 (i.e., to the upper left), so that it is tilted and fits against the outside of the conveyor arm 2. Figure 4 As shown, at this time, the swing base 4 is tilted and fits against the outside of the folded conveyor boom 2, forming a compact folded shape. In this folded shape, the length of the equipment is significantly shortened, while the width and height are controlled within the transport dimensions of ordinary trucks, facilitating relocation and transportation using ordinary trucks and significantly reducing transportation costs.

[0046] When resuming operation, proceed in reverse order: Flip the swing base 4 downwards and to the right, raise the conveyor boom 2 upwards and to the right, reinstall the connecting bolts between the support frame 3 and the swing base 4, then move the angle-changing fixing sleeve 5 up and down along the support frame 3 to the desired position and tighten the locking screw 7. Next, install the connecting piece between the angle adjusting beam 6 and the conveyor boom 2, and finally install the feed hopper 13. All operations require no external power and can be completed manually.

[0047] Through the above-mentioned structural design and folding method, the present invention achieves the following technical effects: only the feed hopper 13 needs to be removed before folding; the folding process is simple and quick; the folded shape is compact; and the on-site angle can be flexibly adjusted and locked reliably. It effectively solves the problems of cumbersome operation, high transportation cost, and inconvenient angle adjustment in the prior art.

[0048] Other aspects of this invention that are not detailed herein are all conventional techniques known to those skilled in the art.

[0049] It should be noted that the terms “comprising,” “including,” or any other variations 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] The scope of protection of this invention is not limited to the technical solutions disclosed in the specific embodiments. Any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the technical essence of this invention shall fall within the scope of protection of this invention.

Claims

1. A foldable belt conveyor, comprising a frame system and a conveying system mounted on the frame system; characterized in that: The rack system includes: The base frame (1) has a horizontal main body section and an upwardly inclined fixed transition section located at one end and connected to the horizontal main body section as a whole. The lower end of the conveyor boom (2) is hinged to the fixed transition section of the base frame (1) via the first hinge shaft (11); The swing base frame (4) is hinged at one end to the base frame (1) near the fixed transition section via a second hinge shaft (12). The support frame (3) is detachably connected to the swing base frame (4) at its lower end. The upper ends of the front and rear sides of the support frame (3) are respectively provided with angle-changing fixing sleeves (5) that can slide up and down. The angle-changing fixing sleeves (5) are provided with locking screws (7) for locking their sliding positions. An angle-adjusting beam (6) is installed between the angle-changing fixing sleeves (5). The angle-adjusting beam (6) is detachably connected to the conveyor arm (2). The conveying system includes an annular conveyor belt (8), a driven roller (9) mounted on the base frame (1) at one end away from the fixed transition section, an active roller (10) mounted on the upper end of the conveyor arm (2), a drive motor (23) connected to the active roller (10), and a turning pressure roller assembly mounted on the fixed transition section of the base frame (1). And a feed hopper (13) that is detachably mounted on the base frame (1).

2. The foldable belt conveyor according to claim 1, characterized in that: The upper branch of the annular conveyor belt (8) is located above the base frame (1) and the conveyor arm (2), and the lower branch is located below the base frame (1) and the conveyor arm (2); multiple guide rollers (24) are spaced apart above the upper branch, and multiple guide rollers (25) are spaced apart below the lower branch.

3. A foldable belt conveyor according to claim 2, characterized in that: The turning pressure roller assembly includes a large turning pressure roller (26) disposed above the lower branch of the annular conveyor belt (8), and two small turning pressure rollers (27) disposed above the upper branch of the annular conveyor belt (8).

4. A foldable belt conveyor according to claim 1, characterized in that: The bottom of the base frame (1) and the swing base frame (4) are respectively provided with casters (14).

5. A foldable belt conveyor according to claim 1, characterized in that: It also includes a leaf distribution assembly located above the conveyor boom (2), the leaf distribution assembly including a leaf distribution device (15), a leaf distribution motor (16) and a lifting adjustment seat (17), the lifting adjustment seat (17) being fixed on the conveyor boom (2) and used to adjust the gap between the leaf distribution device (15) and the upper surface of the annular conveyor belt (8).

6. A foldable belt conveyor according to claim 1, characterized in that: The drive roller (10) and driven roller (9) are respectively provided with belt tensioning mechanisms at their bearing seats. The belt tensioning mechanism includes an adjusting screw (28) and an adjusting nut (29). One end of the adjusting screw (28) abuts against or is fixedly connected to the bearing seat. The adjusting nut (29) is screwed onto the adjusting screw (28) and abuts against the baffle on the base frame (1) or the conveyor arm (2).

7. A foldable belt conveyor according to claim 1, characterized in that: A quick-release connection structure is provided between the feed hopper (13) and the base frame (1). The quick-release connection structure includes a mounting seat (18) fixed on the base frame (1) and an eccentric wheel locking unit located between the mounting seat (18) and the feed hopper (13).

8. A foldable belt conveyor according to claim 7, characterized in that: The eccentric wheel locking unit includes an eccentric wheel handle (19), a locking block (20), a first rotating shaft (21), and a second rotating shaft (22); the eccentric wheel handle (19) is rotatably mounted on the mounting base (18) via the first rotating shaft (21); the locking block (20) is L-shaped, with one end rotatably mounted on the mounting base (18) via the second rotating shaft (22), and the other end is a free end for insertion into the groove (31) provided on the side of the feed hopper (13).

9. A foldable belt conveyor according to claim 8, characterized in that: The quick-release connection structure has two sets of eccentric wheel locking units on each side of the feed hopper (13).

10. A folding method for a foldable belt conveyor as described in claim 1, characterized in that: Includes the following steps: S1: Remove the feed hopper (13); S2: Loosen the locking screw (7), release the locking of the angle-changing fixing sleeve (5), and release the connection between the angle adjusting beam (6) and the conveying boom (2); S3: Disconnect the connection between the support frame (3) and the swing base frame (4); S4: Swing the conveyor arm (2) around the first hinge axis (11) toward the base frame (1) until the conveyor arm (2) is parallel to the base frame (1); S5: Flip the swing base frame (4) around the second hinge axis (12) toward the base frame (1) so that it is tilted and fits against the outside of the conveyor arm (2).

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