Telescopic grain conveying pipeline anti-blocking mechanism

Abstract

The utility model relates to the technical field of grain storage, in particular to a telescopic grain conveying pipeline anti-blocking mechanism which comprises a telescopic pipeline, a fan and an anti-blocking assembly, the telescopic pipeline is formed by nesting a plurality of pipe bodies, the diameter of each pipe body is gradually reduced from bottom to top, the air outlet end of the fan is connected with an air outlet pipe, and the anti-blocking assembly is connected to the telescopic pipeline; the anti-blocking assembly comprises a connecting pipeline, a rectangular ring, an air supply pipeline, a nozzle and an elastic piece. According to the utility model, after the fan blows out high-speed airflow, the high-speed airflow enters the air supply pipeline in the rectangular ring through the air outlet pipe and the connecting pipeline, and the annular air supply pipeline is driven to rotate while the nozzle sprays out the airflow, so that the airflow is moved out of the accommodating groove to be prevented from being blocked; the airflow blown out in the inclined direction is blown out and enters the gap of the nested pipe body to remove the grain mixed in the telescopic pipeline, the annularly-distributed nozzles can enable the airflow to be evenly distributed, and cleaning dead corners are reduced.

Description

Technical Field

[0001] This utility model relates to the field of grain storage technology, specifically to a telescopic grain conveying pipeline anti-blockage mechanism. Background Technology

[0002] In the process of storing grain in a grain warehouse, it is often necessary to transfer and transport the grain through grain pump trucks. Existing grain pump trucks usually use fans to transport the grain. Therefore, it is necessary to ensure that the grain conveying pipes on the grain pump trucks are aligned and connected with the grain receiving pipes on the grain warehouse so that the grain can be transported from the feed inlet at the top of the grain warehouse into the grain warehouse.

[0003] Chinese Patent CN114955558A discloses a telescopic grain conveying pipeline anti-clogging mechanism. The conveying pipeline connects to the receiving pipeline to transport grain. The output end of the conveying pipeline is adjustable via a telescopic gap to ensure alignment with the receiving pipeline. A pneumatic conveying component provides and transmits airflow to transport the grain into the grain silo. A clearing component transmits the airflow from the pneumatic conveying component to the telescopic gap, blowing any grain that has fallen into the gap due to abnormal shutdown of the grain pump truck back into the conveying pipeline, preventing blockage and ensuring the pipeline's smooth operation. This solution prevents blockage through the pneumatic conveying component and the clearing component, ensuring the conveying pipeline can be aligned with the receiving pipeline through telescopic adjustment, achieving stable grain transport. It is highly practical and suitable for widespread application. This invention also discloses a grain pump truck including the aforementioned telescopic grain conveying pipeline anti-clogging mechanism.

[0004] However, in the above technical solution, airflow is only delivered to the conveying component in the pipeline by setting up an air supply component, and the grain blocked in the expansion joint is removed by the airflow. However, when the device is in use, the air force enters the arc-shaped air supply cavity formed by the connection between the air supply partition and the side wall of the grain conveying pipeline through the air inlet pipe. The area that this cavity can cover is limited. If the grain is blocked in the expansion joint on the side away from the air supply cavity, it cannot be removed when the air force is small. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a telescopic anti-blockage mechanism for grain conveying pipelines.

[0006] The technical solution of this utility model is as follows: A telescopic grain conveying pipeline anti-clogging mechanism includes a telescopic pipeline composed of multiple nested pipes, the diameter of which gradually decreases from bottom to top; a blower with an air outlet pipe connected to its outlet end; and an anti-clogging component connected to the telescopic pipeline. The anti-clogging component includes a connecting pipe, a rectangular ring, an air supply pipe, nozzles, and an elastic element. The rectangular ring is connected to the inner wall of the telescopic pipeline. Both ends of the connecting pipe are connected to the air outlet pipe and the rectangular ring, respectively. The air supply pipe is slidably connected in a receiving cavity opened inside the rectangular ring. One end of each of the multiple nozzles is connected to the air supply pipe. A receiving groove for the nozzles is opened on the rectangular ring. Both ends of the elastic element are connected to the nozzles and the rectangular ring, respectively. When the anti-clogging component is in use, the airflow enters the nozzles through the connecting pipe and the air supply pipe. The nozzles eject airflow, pushing themselves out of the receiving grooves and spraying the airflow towards the telescopic pipeline.

[0007] Preferably, the anti-clogging component also includes two guide rings, which are symmetrically arranged and connected to the upper and lower ends of the rectangular ring respectively.

[0008] Preferably, each nozzle is connected to a stop block, which is positioned between the elastic element and the nozzle.

[0009] Preferably, the nozzle axis is inclined at a 45-degree angle to the horizontal plane.

[0010] Preferably, the rectangular ring consists of an inner ring and an outer ring, with a cavity for accommodating the air supply duct opened on one side of the inner and outer rings facing each other. Multiple limiting grooves are opened on the outer ring, and limiting blocks corresponding to the limiting grooves are connected to the inner ring.

[0011] Preferably, the inner wall of the tube is coated with a Teflon coating.

[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0013] In this invention, after the fan blows out a high-speed airflow, it enters the air supply pipe in the rectangular ring through the air outlet pipe and connecting pipe. At the same time as the nozzle sprays out airflow, it drives the annular air supply pipe to rotate, thereby moving out of the receiving groove to prevent the airflow from being blocked. The airflow blown out in an inclined direction blows into the gaps between the nested pipes to remove the grain trapped in the telescopic pipe. The annularly distributed nozzles can make the airflow evenly distributed and reduce the generation of cleaning dead corners. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a schematic cross-sectional view of a portion of the pipe structure;

[0016] Figure 3 Schematic diagram of the structure for preventing blockage and explosion;

[0017] Figure 4 This is a schematic diagram of the flow guide ring structure.

[0018] Reference numerals in the attached drawings: 1. Telescopic pipe; 2. Pipe body; 3. Fan; 4. Air outlet pipe; 5. Connecting pipe; 6. Rectangular ring; 7. Air supply pipe; 8. Nozzle; 9. Elastic element; 10. Receiving cavity; 11. Receiving groove; 12. Guide ring; 13. Stop block; 14. Inner ring; 15. Outer ring; 16. Limiting groove; 17. Limiting block. Detailed Implementation

[0019] Example 1

[0020] like Figures 1-4 As shown, this utility model proposes a telescopic grain conveying pipeline anti-clogging mechanism, including a telescopic pipeline 1, a fan 3, and an anti-clogging component. The telescopic pipeline 1 is composed of multiple nested pipe bodies 2, with the diameter of the pipe bodies 2 gradually decreasing from bottom to top. The air outlet end of the fan 3 is connected to an air outlet pipe 4, and the anti-clogging component is connected to the telescopic pipeline 1. The anti-clogging component includes a connecting pipe 5, a rectangular ring 6, an air supply pipe 7, a nozzle 8, and an elastic element 9. The rectangular ring 6 is connected to the inner wall of the telescopic pipeline 1. The two ends of the connecting pipe 5 are respectively connected to the air outlet pipe 4 and the rectangular ring 6. The air supply pipe 7 is slidably connected in a receiving cavity 10 opened in the rectangular ring 6. One end of the multiple nozzles 8 is connected to the air supply pipe 7. A receiving groove 11 for the nozzles 8 is opened on the rectangular ring 6. The two ends of the elastic element 9 are respectively connected to the nozzles 8 and the rectangular ring 6. When the anti-clogging component is in use, the airflow enters the nozzles 8 through the connecting pipe 5 and the air supply pipe 7. The nozzles 8 spray airflow, push themselves out of the receiving groove 11, and spray the airflow towards the telescopic pipeline 1.

[0021] Example 2

[0022] like Figures 2-4 As shown, the present invention proposes a telescopic grain conveying pipeline anti-blocking mechanism. Compared with Embodiment 1, this embodiment describes the detailed structure of the anti-blocking component. The anti-blocking component also includes a guide ring 12. Two guide rings 12 are symmetrically arranged and are respectively connected to the upper and lower ends of the rectangular ring 6.

[0023] In an optional embodiment, each nozzle 8 is connected to a stop block 13, which is disposed between the elastic member 9 and the nozzle 8. When the nozzle 8 moves, the stop block 13 moves along the groove opened on the guide ring 12. When it returns to its original position, it blocks the notch on the guide ring 12 that is used to expose the nozzle 8, preventing material from entering and affecting its subsequent normal operation.

[0024] In an optional embodiment, the axis of nozzle 8 is tilted at a 45-degree angle to the horizontal plane; the gas ejected in the tilted direction can cover a larger area compared to the gas ejected in the vertical direction.

[0025] In an optional embodiment, the rectangular ring 6 is composed of an inner ring 14 and an outer ring 15. The inner ring 14 and the outer ring 15 are provided with a cavity 10 for accommodating the air supply duct 7 on opposite sides. The outer ring 15 is provided with a plurality of limiting grooves 16, and the inner ring 14 is connected with a limiting block 17 corresponding to the limiting groove 16.

[0026] In an optional embodiment, the inner wall of the tube 2 is coated with a Teflon coating; the Teflon coating, through its smooth properties, can reduce the possibility of grain blockage.

[0027] In summary, when this utility model is in use, the fan 3 generates airflow that is delivered to the telescopic pipe 1 through the outlet pipe 4. Simultaneously, external grain storage equipment is connected to the telescopic pipe 1 via a connecting structure. The high-speed airflow carries the grain from the bottom to the top of the telescopic pipe 1. When the grain comes into contact with the rectangular ring 6 and the guide ring 12, their shapes guide it. The special shape of the guide ring 12 reduces obstruction of grain transport. In the event of an unexpected power outage or other circumstances causing grain to collide and splash into the gaps between the nested pipe bodies 2, the operator opens the valve on the connecting pipe 5, allowing the high-speed airflow generated by the fan 3 to enter the connecting pipe. The airflow enters the annular air supply duct 7 from the nozzle 8. The air pushes the air supply duct 7 to rotate at a certain angle within the receiving cavity 10 of the rectangular ring 6. The rotation angle is limited by the position of the baffle 13 within the receiving groove 11. At the same time, the elastic element 9 is stretched. After it rotates at a certain angle, the protrusions in the receiving groove 11 can no longer block the airflow. The airflow can blow into the gap between the pipes 2 to remove the blocked grain. After cleaning, the valve is closed, the airflow stops, and the elastic element 9 resets, pulling the air supply duct 7 to rotate and causing the baffle 13 to block the receiving groove 11 to prevent the grain from entering the receiving cavity 10 and the receiving groove 11.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A mechanism for preventing blockage of a telescopic grain conveying pipe, characterized in that The utility model relates to a telescopic pipeline, which comprises a plurality of pipe bodies (2) nested together, the pipe bodies (2) gradually reducing in diameter from bottom to top, a fan (3) connected with an air outlet pipe (4) at an air outlet end, an anti-blocking assembly connected on the telescopic pipeline (1), the anti-blocking assembly comprising a connecting pipe (5), a rectangular ring (6), a blowing pipe (7), a nozzle (8) and an elastic member (9), the rectangular ring (6) being connected on the inner wall of the telescopic pipeline (1), the connecting pipe (5) being connected with the air outlet pipe (4) and the rectangular ring (6) at two ends respectively, the blowing pipe (7) being slidingly connected in a containing cavity (10) provided in the rectangular ring (6), a plurality of nozzles (8) being connected with the blowing pipe (7) at one end, a containing slot (11) through the nozzles (8) being provided on the rectangular ring (6), and the elastic member (9) being connected with the nozzles (8) and the rectangular ring (6) at two ends respectively; in use, air flows into the nozzles (8) through the connecting pipe (5) and the blowing pipe (7), the nozzles (8) spray air to push themselves out of the containing slot (11) and spray air towards the telescopic pipeline (1). The anti-blocking assembly further comprises two guide rings (12) symmetrically arranged, the guide rings (12) being connected at upper and lower ends of the rectangular ring (6) respectively. The nozzles (8) are each connected with a stop block (13), the stop block (13) being arranged between the elastic member (9) and the nozzle (8).

2. The anti-blocking mechanism of the telescopic grain conveying pipe according to claim 1, characterized in that, The axis of the nozzle (8) is inclined at an angle of 45 degrees to the horizontal plane. The rectangular ring (6) is composed of an inner ring (14) and an outer ring (15), the inner ring (14) and the outer ring (15) being provided with a containing cavity (10) containing the blowing pipe (7) on a side facing each other, the outer ring (15) being provided with a plurality of limiting grooves (16), and the inner ring (14) being connected with limiting blocks (17) corresponding to the limiting grooves (16).

3. The anti-blocking mechanism of the telescopic grain conveying pipe according to claim 1, characterized in that, The inner wall of the pipe body (2) is coated with a Teflon coating.

4. The anti-blocking mechanism of the telescopic grain conveying pipe according to claim 1, characterized in that, ​ 5. The anti-blocking mechanism of the retractable grain conveying pipe according to claim 1, characterized in that, ​ 6. The anti-blocking mechanism of the retractable grain conveying pipe according to claim 1, characterized in that, ​

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