Totally enclosed belt conveyor tail anti-leakage device

Abstract

The application discloses a tail material leakage prevention device of a fully-closed belt conveyor and relates to the technical field of conveyors. The device comprises a support, an inclined conveyor belt arranged on the support, side walls fixedly connected to the top surface of the support and located on both sides of the inclined conveyor belt, a guide groove arranged in the side walls, a positioning groove arranged in the bottom wall of the guide groove and communicated with the guide groove, and a feeding port located behind the positioning groove and closer to the conveying end of the inclined conveyor belt. The device is provided with a material leakage collecting device between the side walls. The elastic contraction device is triggered by the weight of the material, the friction plate is in contact with the inclined conveyor belt, the whole collecting device is moved along the guide groove to the discharge port for discharge, and the automatic collection and discharge of the tail leakage material are realized.

Description

Technical Field

[0001] This invention relates to the field of conveyor belt technology, and in particular to a leak prevention device at the tail end of a fully enclosed belt conveyor. Background Technology

[0002] Fully enclosed belt conveyors, as a type of continuous conveying equipment, are characterized by reliable structure, simple manufacturing, low cost, and high transportation efficiency. They are widely used in the conveying of bulk materials in mining, ports, metallurgy, chemical, and building materials industries. In practical applications, belt conveyors are often installed at an angle, and the outer wall of the conveyor belt is fitted with a closed cover. When conveying bulk materials such as sand or powder, due to factors such as conveyor belt vibration, the material's own weight, and inertia, a small amount of material will slide off the conveyor belt towards the tail end during the entire conveying process. Especially with fully enclosed belt conveyors, due to the limitations of the closed cover, it is difficult for operators to detect and clean up the leaked material at the tail end in a timely manner, causing the material to accumulate continuously at the tail end of the conveyor belt.

[0003] Material buildup increases the running resistance of the conveyor belt, aggravates its wear, and affects conveying efficiency. On the other hand, long-term material buildup may cause conveyor belt misalignment, blockage, or even belt crushing, which can lead to equipment shutdown and affect transportation efficiency in severe cases. Summary of the Invention

[0004] The purpose of this invention is to provide a material leakage prevention device at the tail of a fully enclosed belt conveyor, so as to solve the problem of material accumulation at the tail of existing fully enclosed belt conveyors, which leads to belt wear, as mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fully enclosed belt conveyor tail anti-leakage device, comprising a support, an inclined conveyor belt and a closed cover fitted on the outer wall of the inclined conveyor belt, an inlet at the top of the closed cover and an outlet at the bottom of the closed cover, and side barriers located on both sides of the inclined conveyor belt fixedly connected to the top surface of the support, a guide groove being provided inside the side barriers, and a positioning groove communicating with the guide groove being provided on the bottom wall of the guide groove, the positioning groove being located behind the inlet and closer to the lower conveying end of the inclined conveyor belt;

[0006] A material discharge collection device is provided between the two opposing sides of the side enclosure. The material discharge collection device includes a vertical plate disposed between the opposing sides of the side enclosure. A horizontal plate is fixedly connected to the top of the vertical plate, and a receiving plate is rotatably connected to the bottom of the vertical plate. Pushing devices are provided on both sides of the vertical plate. The pushing devices are used to push the bottom of the receiving plate to abut against the top surface of the inclined conveyor belt.

[0007] The bottom end of the horizontal plate is provided with an elastic shrinking device and a rolling device located in the guide groove. The rolling device is located below the elastic shrinking device. Baffles are fixedly connected to both sides of the receiving plate. Friction plates are provided on the bottom surface of the receiving plate. A limiting device is provided at one end of the baffle. The limiting device is used to limit the downward travel of the vertical plate in the initial state to prevent the bottom of the vertical plate from contacting the top surface of the inclined conveyor belt.

[0008] When material continues to accumulate on the receiving plate, the elastic contraction device contracts and drives the horizontal plate to move down into the guide groove. At this time, the friction plate abuts against the top surface of the inclined conveyor belt, and the receiving plate moves along the direction of the guide groove under the action of friction.

[0009] The positioning groove is equipped with a one-way rotating blocking device. The blocking device is used to prevent the material from continuing to leak towards the lower end of the inclined conveyor belt after the vertical plate moves along the guide groove. When the receiving plate moves to the positioning groove, it can scoop up the accumulated material at the blocking device.

[0010] Preferably, the elastic contraction device includes a support plate located in the guide groove and a telescopic sleeve fixedly connected to the top surface of the support plate. The top end of the telescopic sleeve is fixedly connected to the bottom surface of the horizontal plate. A spring is sleeved on the outer wall of the telescopic sleeve, and the two ends of the spring abut against the top surface of the support plate and the bottom surface of the horizontal plate, respectively.

[0011] Preferably, the rolling device includes a roller fixedly connected to the bottom surface of the support plate, and the roller is in rolling connection with the inner wall of the guide groove.

[0012] Preferably, the pushing device includes a groove at both ends of a vertical plate, a rotating rod fixedly connected to the inner wall of the groove, a receiving plate rotatably sleeved on the outer wall of the rotating rod, a coil spring sleeved on the outer wall of the rotating rod, and the two ends of the coil spring being fixedly connected to the inner wall of the receiving plate and the inner wall of the groove, respectively.

[0013] Preferably, the limiting device includes two grooves on both sides of the vertical plate, a rod is fixedly connected to the upper part of the inner wall of the two grooves, an arc-shaped block is fixedly connected to one end of the baffle, the arc-shaped block and the rotating rod are set at the same center, an arc-shaped groove is opened at the top of the arc-shaped block, and the bottom end of the rod extends into the arc-shaped groove.

[0014] Preferably, the unidirectional rotation blocking device includes a rotating plate disposed between two positioning slots. The length of the rotating plate is less than the width of the positioning slots, allowing the material collection device to move past the rotating plate into the positioning slots. Two rotating rods are fixedly connected to both ends of the top of the rotating plate. The rotating rods are rotatably connected to the inner wall of the positioning slots. A stop block is fixedly sleeved on the outer wall of the rotating rods. The rotating plate can only rotate unidirectionally in the direction of the inclined conveyor belt. When the material on the inclined conveyor belt leaks towards the lower end of the inclined conveyor belt, the stop block abuts against the inner wall of the positioning slot to prevent the rotating plate from rotating towards the lower end of the inclined conveyor belt.

[0015] Preferably, the bottom of the enclosure away from the discharge port has an opening, and a sealing door is hinged to the outer wall of the opening. The sealing door is used to remove any remaining leaked material, and one end of the sealing door is connected to the enclosure by a latch lock.

[0016] The technical effects and advantages of this invention are as follows: By setting a material leakage collection device between the side barriers, an elastic contraction device at the top of the vertical plate, and friction plates on the bottom surface of the receiving plate, when a small amount of material leaking from the tail accumulates on the receiving plate to a certain weight, the elastic contraction device automatically contracts, causing the horizontal plate to move down into the guide groove. This allows the friction plates to contact the top surface of the inclined conveyor belt, and the friction force drives the entire material leakage collection device to move along the guide groove until the accumulated material is discharged from the outlet. This avoids the problem of conveyor belt wear caused by material accumulation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0019] Figure 3 This is a schematic diagram of the inclined conveyor belt section of the present invention.

[0020] Figure 4 This is a partial structural diagram of the leakage collection device of the present invention.

[0021] Figure 5 This is a schematic diagram of the receiving plate part of the present invention.

[0022] Figure 6 This is a schematic diagram of the side enclosure structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the blocking device of the present invention.

[0024] Figure 8 for Figure 4Enlarged structural diagram at point A in the middle.

[0025] In the diagram: 1. Support frame; 11. Inclined conveyor belt; 12. Enclosed cover; 13. Inlet; 14. Outlet; 15. Enclosed door; 2. Side enclosure; 21. Guide groove; 22. Positioning groove; 3. Material discharge collection device; 31. Vertical plate; 32. Horizontal plate; 33. Support plate; 34. Baffle; 35. Friction plate; 36. Arc block; 37. Arc groove; 38. Rotating rod one; 39. Coil spring; 310. Groove one; 311. Groove two; 312. Insert rod; 4. Blocking device; 41. Rotating plate; 42. Stop block; 43. Rotating rod two; 5. Telescopic sleeve; 51. Bearing plate; 52. Roller; 53. Spring. Detailed Implementation

[0026] 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.

[0027] This invention provides, for example Figure 1-8 The device shown is a fully enclosed belt conveyor tail anti-leakage device, including a support 1, an inclined conveyor belt 11 and a closed cover 12 fitted on the outer wall of the inclined conveyor belt 11. The top of the closed cover 12 is provided with a feed inlet 13 and the bottom of the closed cover 12 is provided with a discharge outlet 14. The top surface of the support 1 is fixedly connected with side barriers 2 located on both sides of the inclined conveyor belt 11. A guide groove 21 is opened in the side barriers 2. A positioning groove 22 connected to the guide groove 21 is opened on the bottom wall of the guide groove 21. The positioning groove 22 is located behind the feed inlet 13 and closer to the lower conveying end of the inclined conveyor belt 11.

[0028] A material discharge collection device 3 is provided between the opposite faces of the two side enclosures 2. The material discharge collection device 3 includes a vertical plate 31 set between the opposite faces of the side enclosures 2. A horizontal plate 32 is fixedly connected to the top of the vertical plate 31, and a receiving plate 33 is rotatably connected to the bottom of the vertical plate 31. Pushing devices are provided on both sides of the vertical plate 31. The pushing devices are used to push the bottom of the receiving plate 33 to abut against the top surface of the inclined conveyor belt 11.

[0029] The bottom end of the horizontal plate 32 is provided with an elastic contraction device and a rolling device located in the guide groove 21. The rolling device is located below the elastic contraction device. The two sides of the receiving plate 33 are fixedly connected with baffles 34. The bottom surface of the receiving plate 33 is provided with friction plates 35. One end of the baffle 34 is provided with a limiting device. The limiting device is used to limit the downward stroke of the vertical plate 31 in the initial state to prevent the bottom of the vertical plate 31 from contacting the top surface of the inclined conveyor belt 11.

[0030] When material continues to accumulate on the receiving plate 33, the elastic shrinking device shrinks and drives the horizontal plate 32 to move down into the guide groove 21. At this time, the friction plate 35 abuts against the top surface of the inclined conveyor belt 11, and the receiving plate 33 moves along the direction of the guide groove 21 under the action of friction.

[0031] The positioning groove 22 is equipped with a one-way rotation blocking device 4. The blocking device 4 is used to prevent the material from continuing to leak towards the lower end of the inclined conveyor belt 11 after the vertical plate 31 moves along the guide groove 21. When the receiving plate 33 moves to the positioning groove 22, it can scoop up the accumulated material at the blocking device 4.

[0032] The present invention includes a support 1, on which an inclined conveyor belt 11 is mounted. Side enclosures 2 located on both sides of the inclined conveyor belt 11 are fixedly connected to the top surface of the support 1. A guide groove 21 is provided inside the side enclosure 2. A positioning groove 22 communicating with the guide groove 21 is provided on the bottom wall of the guide groove 21. The positioning groove 22 is located behind the feed inlet 13 and closer to the lower end of the inclined conveyor belt 11.

[0033] A material collection device 3 is provided between the two side enclosures 2. The material collection device 3 includes a vertical plate 31, a horizontal plate 32 is fixedly connected to the top of the vertical plate 31, and a receiving plate 33 is rotatably connected to the bottom of the vertical plate 31. Pushing devices are provided on both sides of the vertical plate 31. The pushing devices are used to push the bottom of the receiving plate 33 to abut against the top surface of the inclined conveyor belt 11 to prevent leaked transported material from leaking out from the gap between the receiving plate 33 and the inclined conveyor belt 11.

[0034] The bottom end of the horizontal plate 32 is equipped with an elastic contraction device and a rolling device located in the guide groove 21, with the rolling device located below the elastic contraction device. Baffles 34 are fixedly connected to both sides of the receiving plate 33. The baffles 34 are used to gather the material on the receiving plate 33 and prevent it from flowing into the enclosed cover 12. Friction plates 35 are provided on the bottom surface of the receiving plate 33. A limiting device is provided at one end of the baffle 34. The limiting device is used to limit the downward travel of the vertical plate 31 in the initial state, preventing the bottom of the vertical plate 31 from contacting the top surface of the inclined conveyor belt 11.

[0035] In operation, material enters the enclosed hood 12 through the inlet 13 and falls onto the inclined conveyor belt 11. When a small amount of material slides backward along the inclined conveyor belt 11, it falls onto the receiving plate 33 and accumulates there. As the weight of the material on the receiving plate 33 increases, the elastic contraction device gradually contracts and moves the cross plate 32 down into the guide groove 21. At this time, the friction plate 35 comes into contact with the top surface of the inclined conveyor belt 11. It should be noted that the friction plate 35 is a soft material, preferably a rubber block. The receiving plate 33 moves along the direction of the guide groove 21 under the action of friction. When the material collection device 3 moves along the guide groove 21 to the discharge port 14, the material on the receiving plate 33 is discharged to the discharge port 14 along with the material on the inclined conveyor belt 11. Due to the restriction of the guide groove 21 and the pushing device, the friction plate 35 and the surface of the inclined conveyor belt 11 are still in contact. At this time, the material collection device 3 continues to move with the inclined conveyor belt 11 to the positioning groove 22. At the same time, the receiving plate 33 can scoop up the accumulated material at the one-way rotation blocking device 4 to realize the automatic collection and cleaning of the leaked material at the tail.

[0036] The present invention provides a material collection device 3 between the side barriers 2. The material itself is used to trigger the action of the elastic contraction device, so that the friction plate 35 comes into contact with the inclined conveyor belt 11, thereby driving the entire collection device 3 to move along the guide groove 21 to the discharge port 14 for discharge, thus realizing the automatic collection and discharge of the material leaking from the tail end.

[0037] like Figure 2 and Figure 8 As shown, the elastic contraction device includes a support plate 51 located in the guide groove 21 and a telescopic sleeve 5 fixedly connected to the top surface of the support plate 51. The top end of the telescopic sleeve 5 is fixedly connected to the bottom surface of the horizontal plate 32. A spring 53 is sleeved on the outer wall of the telescopic sleeve 5. The two ends of the spring 53 abut against the top surface of the support plate 51 and the bottom surface of the horizontal plate 32, respectively.

[0038] When there is no material or little material on the receiving plate 33, the spring 53 is in a naturally extended or slightly compressed state, pushing the horizontal plate 32 upward, keeping the friction plate 35 separated from the inclined conveyor belt 11. As the material on the receiving plate 33 gradually increases, the horizontal plate 32 moves downward under the action of the material's gravity, compressing the spring 53 and the telescopic sleeve 5, until the horizontal plate 32 moves down to the predetermined position in the guide groove 21, at which point the friction plate 35 comes into contact with the inclined conveyor belt 11. When the material is cleared and the discharge collection device 3 moves to the positioning groove 22, the spring 53 returns to its elastic extension, pushing the horizontal plate 32 back upward.

[0039] like Figure 8 As shown, the rolling device includes a roller 52 fixedly connected to the bottom surface of the bearing plate 51, and the roller 52 is in rolling connection with the inner wall of the guide groove 21.

[0040] The rolling device includes a roller 52 fixedly connected to the bottom surface of the bearing plate 51. The roller 52 is rolled in connection with the inner wall of the guide groove 21. When the discharge collection device 3 moves, the roller 52 rolls along the inner wall of the guide groove 21, converting sliding friction into rolling friction, greatly reducing the moving resistance, and ensuring that the discharge collection device 3 can move smoothly under the drive of a small friction force.

[0041] like Figure 5 and Figure 8 As shown, the pushing device includes grooves 310 at both ends of the vertical plate 31. A rotating rod 38 is fixedly connected to the inner wall of the groove 310. The receiving plate 33 is rotatably sleeved on the outer wall of the rotating rod 38. A coil spring 39 is sleeved on the outer wall of the rotating rod 38. The two ends of the coil spring 39 are fixedly connected to the inner wall of the receiving plate 33 and the inner wall of the groove 310, respectively.

[0042] The coil spring 39 has a certain preload in its initial state, which keeps the receiving plate 33 in contact with the top surface of the inclined conveyor belt 11 when no external force is applied, preventing leaked material from leaking out from the gap between the receiving plate 33 and the inclined conveyor belt 11. When the receiving plate 33 carries material, the coil spring 39 is further compressed; when the material is dumped and cleared, the coil spring 39 releases its elastic potential energy, pushing the receiving plate 33 to automatically return to the state of contact with the top surface of the inclined conveyor belt 11.

[0043] like Figure 5 and Figure 8 As shown, the limiting device includes two grooves 311 on both sides of the vertical plate 31. A rod 312 is fixedly connected to the upper part of the inner wall of the groove 311. An arc block 36 is fixedly connected to one end of the baffle 34. The arc block 36 is set with the same center as the rotating rod 38. An arc groove 37 is opened at the top of the arc block 36. The bottom end of the rod 312 extends into the arc groove 37.

[0044] When the receiving plate 33 rotates relative to the vertical plate 31, the arc-shaped block 36 rotates accordingly, and the insertion rod 312 slides relative to it within the arc-shaped groove 37. The two ends of the arc-shaped groove 37 form a limit, and when the insertion rod 312 slides to either end of the arc-shaped groove 37, the rotation of the receiving plate 33 is restricted, thereby limiting the maximum rotation angle of the receiving plate 33.

[0045] In the initial state, the limiting device restricts the upward rotation angle of the receiving plate 33 through the cooperation of the insert rod 312 and the arc groove 37, ensuring that the friction plate 35 abuts against the top surface of the inclined conveyor belt 11. This prevents the vertical plate 31 from continuously pressing down and causing one end of the receiving plate 33 to tilt up through the friction plate 35 as a fulcrum, thus preventing material from remaining on one side of the friction plate 35 and causing the friction plate 35 to abut against the inclined conveyor belt 11 next time.

[0046] like Figure 3 and Figure 7As shown, the one-way rotation blocking device 4 includes a rotating plate 41 disposed between two positioning slots 22. The length of the rotating plate 41 is less than the width of the positioning slot 22, so that the material collection device moves over the rotating plate 41 into the positioning slot 22. The top two ends of the rotating plate 41 are fixedly connected to rotating rods 43. The rotating rods 43 are rotatably connected to the inner wall of the positioning slot 22. The outer wall of the rotating rods 43 is fixedly sleeved with a stop block 42. The rotating plate 41 can only rotate in one direction in the direction of the inclined conveyor belt 11. When the material on the inclined conveyor belt 11 leaks towards the lower end of the inclined conveyor belt 11, the stop block 42 abuts against the inner wall of the positioning slot 22 to prevent the rotating plate 41 from rotating towards the lower end of the inclined conveyor belt 11.

[0047] The rotating plate 41 can only be rotated in one direction towards the direction of the inclined conveyor belt 11. Specifically, when the material on the inclined conveyor belt 11 leaks towards the lower end of the inclined conveyor belt 11, the material pushes the rotating plate 41 to rotate towards the lower end of the inclined conveyor belt 11. At this time, the stop block 42 abuts against the inner wall of the positioning groove 22, preventing the rotating plate 41 from continuing to rotate, thereby blocking the leaking material on one side of the rotating plate 41.

[0048] When the discharge collection device 3 moves along the guide groove 21 towards the positioning groove 22, the receiving plate 33 first contacts and pushes the rotating plate 41 to flip in the direction conveyed by the inclined conveyor belt 11. Since the rotating plate 41 can only flip in one direction, it can be pushed aside, allowing the receiving plate 33 to move over the rotating plate 41 into the positioning groove 22, while simultaneously scooping up and carrying away the material accumulated at the rotating plate 41. The length of the rotating plate 41 is less than the width of the positioning groove 22, ensuring that the discharge collection device 3 can smoothly cross the rotating plate 41 and enter the positioning groove 22.

[0049] like Figure 2 As shown, the bottom of the enclosure 12 away from the discharge port 14 has an opening, and the outer wall of the opening is hinged with a sealing door 15. The sealing door 15 is used to remove the remaining leaked material. One end of the sealing door 15 is connected to the enclosure 12 by a snap lock.

[0050] After the leakage collection device 3 completes the collection and cleaning of the leaked material, a small amount of residual material may remain at the bottom of the enclosure 12. At this time, the operator can open the latch lock, pull open the enclosure door 15, and remove the residual material inside the enclosure 12. After cleaning, close the enclosure door 15 and lock it with the latch lock to restore the enclosure 12 to its sealed state.

[0051] The sealing door 15 is located at the lowest point of the bottom of the sealing cover 12 away from the discharge port 14, so that the residual material will naturally collect at the sealing door 15 under the action of gravity, making it easy to remove.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fully enclosed belt conveyor tail anti-leakage device, comprising a support (1), wherein an inclined conveyor belt (11) is provided on the support (1) and a closed cover (12) fitted around the outer wall of the inclined conveyor belt (11), wherein the top of the closed cover (12) is provided with an inlet (13) and the bottom of the closed cover (12) is provided with an outlet (14), characterized in that: The top surface of the bracket (1) is fixedly connected to the side enclosures (2) located on both sides of the inclined conveyor belt (11). The side enclosures (2) are provided with guide grooves (21). The bottom wall of the guide grooves (21) is provided with positioning grooves (22) that communicate with the guide grooves (21). The positioning grooves (22) are located behind the feed inlet (13) and closer to the conveying end of the inclined conveyor belt (11) at its lower end. A material discharge collection device (3) is provided between the opposite faces of the two side enclosures (2). The material discharge collection device (3) includes a vertical plate (31) disposed between the opposite faces of the side enclosures (2). A horizontal plate (32) is fixedly connected to the top of the vertical plate (31). A receiving plate (33) is rotatably connected to the bottom of the vertical plate (31). Pushing devices are provided on both sides of the vertical plate (31). The pushing devices are used to push the bottom of the receiving plate (33) to abut against the top surface of the inclined conveyor belt (11). The bottom end of the horizontal plate (32) is provided with an elastic shrinking device and a rolling device located in the guide groove (21). The rolling device is located below the elastic shrinking device. The two sides of the receiving plate (33) are fixedly connected with baffles (34). The bottom surface of the receiving plate (33) is provided with friction plates (35). One end of the baffle (34) is provided with a limiting device. The limiting device is used to limit the downward stroke of the vertical plate (31) in the initial state to prevent the bottom of the vertical plate (31) from contacting the top surface of the inclined conveyor belt (11). When material continues to accumulate on the receiving plate (33), the elastic shrinking device shrinks and drives the horizontal plate (32) to move down into the guide groove (21). At this time, the friction plate (35) abuts against the top surface of the inclined conveyor belt (11), and the receiving plate (33) moves along the direction of the guide groove (21) under the action of friction. The positioning groove (22) is provided with a one-way rotation blocking device (4). The blocking device (4) is used to prevent the material from continuing to leak towards the lower end of the inclined conveyor belt (11) after the vertical plate (31) moves along the guide groove (21). When the receiving plate (33) moves to the positioning groove (22), it can scoop up the accumulated material at the blocking device (4).

2. The anti-leakage device at the tail end of a fully enclosed belt conveyor according to claim 1, characterized in that: The elastic contraction device includes a support plate (51) located in the guide groove (21) and a telescopic sleeve (5) fixedly connected to the top surface of the support plate (51). The top end of the telescopic sleeve (5) is fixedly connected to the bottom surface of the horizontal plate (32). A spring (53) is sleeved on the outer wall of the telescopic sleeve (5). The two ends of the spring (53) abut against the top surface of the support plate (51) and the bottom surface of the horizontal plate (32), respectively.

3. The anti-leakage device at the tail end of a fully enclosed belt conveyor according to claim 1, characterized in that: The rolling device includes a roller (52) fixedly connected to the bottom surface of the support plate (51), and the roller (52) is in rolling connection with the inner wall of the guide groove (21).

4. The anti-leakage device at the tail end of a fully enclosed belt conveyor according to claim 3, characterized in that: The pushing device includes a groove (310) at both ends of a vertical plate (31). A rotating rod (38) is fixedly connected to the inner wall of the groove (310). The receiving plate (33) is rotatably sleeved on the outer wall of the rotating rod (38). A coil spring (39) is sleeved on the outer wall of the rotating rod (38). The two ends of the coil spring (39) are fixedly connected to the inner wall of the receiving plate (33) and the inner wall of the groove (310), respectively.

5. The anti-leakage device at the tail end of a fully enclosed belt conveyor according to claim 2, characterized in that: The limiting device includes two grooves (311) on both sides of the vertical plate (31), a rod (312) is fixedly connected to the upper part of the inner wall of the groove (311), an arc block (36) is fixedly connected to one end of the baffle (34), the arc block (36) is co-centered with the rotating rod (38), an arc groove (37) is opened at the top of the arc block (36), and the bottom end of the rod (312) extends into the arc groove (37).

6. The anti-leakage device at the tail end of a fully enclosed belt conveyor according to claim 1, characterized in that: The one-way rotation blocking device (4) includes a rotating plate (41) disposed between two positioning slots (22). The length of the rotating plate (41) is less than the width of the positioning slot (22), so that the material collection device moves across the rotating plate (41) into the positioning slot (22). The two ends of the top of the rotating plate (41) are fixedly connected to the rotating rods (43). The rotating rods (43) are rotatably connected to the inner wall of the positioning slot (22). The outer wall of the rotating rods (43) is fixedly sleeved with a stop block (42). The rotating plate (41) can only rotate in one direction towards the direction of the inclined conveyor belt (11). When the material on the inclined conveyor belt (11) leaks towards the lower end of the inclined conveyor belt (11), the stop block (42) abuts against the inner wall of the positioning slot (22) to prevent the rotating plate (41) from rotating towards the lower end of the inclined conveyor belt (11).

7. The anti-leakage device at the tail end of a fully enclosed belt conveyor according to claim 1, characterized in that: The bottom of the enclosure (12) away from the discharge port (14) has an opening, and the outer wall of the opening is hinged with a sealing door (15). The sealing door (15) is used to remove the remaining leaked material. One end of the sealing door (15) is connected to the enclosure (12) by a snap lock.

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