Deslagging and conveying mechanism for packaging red date and walnut cakes

Abstract

The invention discloses a deslagging conveying mechanism for packaging red date and walnut cakes, and relates to the technical field of food processing, the deslagging conveying mechanism comprises a conveying machine body, a control box for controlling the conveying machine body is arranged on the side of the conveying machine body, a driving motor is fixedly connected to the outer side of the conveying machine body, and a driving roller is rotatably connected to the inner side of the conveying machine body. According to the deslagging conveying mechanism for red date and walnut cake packaging, when an adjusting plug moves in the direction away from a first communicating pipe on one side, the space of an inner cavity of a fixed barrel is increased, the air pressure is reduced, when the adjusting plug moves in the direction close to the first communicating pipe again, sucked air is pressed into a first connecting box, and the operation is repeated; and the one-way valve is arranged in the first communicating pipe, so that gas is strictly limited to only flow to the first connecting box from the fixed barrel in one direction, the gas in the first connecting box is effectively prevented from flowing back to the fixed barrel, and the gas supply pressure and efficiency are ensured.

Description

Technical Field

[0001] This invention relates to the field of food processing technology, specifically to a slag removal and conveying mechanism for packaging jujube and walnut cakes. Background Technology

[0002] During the production of jujube and walnut cakes, some residue will adhere to the conveyor belt. If it is not cleaned in time, it will not only affect the cleanliness of the subsequent jujube and walnut cakes, but may also cause the conveyor belt to run obstructed due to the accumulation of residue, increasing the equipment failure rate. Traditional manual cleaning methods are inefficient and difficult to adapt to the needs of continuous production.

[0003] To overcome the above-mentioned defects, the prior art (Chinese patent with publication number CN118083514A, publication date 2024-05-28) discloses a conveying device for food processing, relating to the field of production conveying technology. It includes a support frame, a transport mechanism rotatably connected to the outer surface of the support frame, a cleaning mechanism rotatably connected to the outer surface of the transport mechanism, a slag removal mechanism fixedly connected to the outer surface of the support frame, a dehumidification mechanism fixedly connected to the outer surface of the support frame, and a disinfection mechanism fixedly connected to the upper surface of the dehumidification mechanism. The downward pressure of the food on the slag removal cylinder converts gravitational potential energy into mechanical potential energy, causing one end of the slag removal cylinder to tilt upwards, thus removing slag from the surface of the conveyor belt and achieving a cleaning effect. Simultaneously, the inner surface of the slag removal cylinder is arc-shaped to facilitate food sliding. During the resetting process after the food slides off, the slag removal cylinder can also impact the food about to fall onto the surface, knocking out moisture from the food surface and enhancing the drying effect.

[0004] While existing methods can utilize the gravity of food to raise and lower the slag removal cylinder, removing slag from the conveyor belt surface and assisting in food drying, their slag removal effect is unstable and their ability to clean stubborn residues adhering to the conveyor belt surface is limited.

[0005] Therefore, we propose a slag removal and conveying mechanism for packaging jujube and walnut cakes to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a slag removal conveying mechanism for packaging jujube and walnut cakes, in order to solve the problems mentioned in the background art, such as the unstable slag removal effect and limited ability to clean stubborn residues adhering to the surface of the conveyor belt.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a slag removal conveying mechanism for packaging jujube and walnut cakes, comprising a conveyor body, a control box for controlling the conveyor body is provided on the side of the conveyor body, a drive motor is fixedly connected to the outer side of the conveyor body, a drive roller is rotatably connected to the inner side of the conveyor body, and the outer end of the drive roller is fixedly connected to the output end of the drive motor. An air blowing mechanism is provided inside the conveyor body, which supplies air to the inside of the first connecting box by rotating the linkage reciprocating screw contained therein. A swinging mechanism is also provided on the conveyor body, which drives the elastic jet pipe contained therein to swing by the suction action of the air blowing mechanism, thereby improving the dust removal range.

[0008] Preferably, a first linkage roller is rotatably connected to the conveyor body, and a linkage reciprocating screw is rotatably connected to the conveyor body. The first linkage roller and the linkage reciprocating screw are located at the same horizontal position, and a linkage belt is sleeved on the outer ends of the linkage reciprocating screw, the first linkage roller, and the drive roller.

[0009] Preferably, a scraping rubber strip is fixedly connected to the outer side of the first linkage roller, and the scraping rubber strip is arranged in a ring array about the center point of the first linkage roller, and the outer side of the scraping rubber strip is in contact with the outer surface of the conveyor belt.

[0010] Preferably, the air blowing mechanism includes a fixed barrel, which is fixedly connected to the conveyor body, and the internal cavity of the fixed barrel is sealed to the conveyor body. The linkage reciprocating screw is located in the internal cavity of the fixed barrel.

[0011] Preferably, the outer thread of the linkage reciprocating screw is connected to an adjusting plug, and the outer surface of the adjusting plug is in contact with the inner wall of the fixed barrel, and the lower side of the fixed barrel is connected to a first connecting pipe.

[0012] Preferably, a first connecting box is fixedly connected to the lower side of the fixed bucket, and an elastic jet pipe is provided through the first connecting box facing the conveyor belt. After the elastic jet pipe is deformed under force, it can be reset by its own elastic force when no force is applied.

[0013] Preferably, the other end of the first connecting pipe is connected through to the first connecting box, and the first connecting pipe is equipped with a one-way valve, so that the gas can only flow from the fixed barrel to the first connecting box in one direction.

[0014] Preferably, the swing mechanism includes a second connecting box, which is fixedly connected below the first connecting box. A second connecting pipe is connected through the second connecting box and the fixed barrel. A one-way valve is provided inside the second connecting pipe, allowing gas to flow only from the second connecting box to the fixed barrel. An inner adjusting ring is slidably connected inside the second connecting box, and a strong magnetic ring is fixedly connected to the middle of the inner adjusting ring. The outer side of the inner adjusting ring is in contact with the inner wall of the second connecting box.

[0015] Preferably, the inner adjusting ring slides along the inside of the second connecting box under the action of the suction air pressure. An outer connecting ring is slidably connected to the outside of the second connecting box, and a strong magnetic ring is also fixedly connected to the inside of the outer connecting ring. At the same time, the strong magnetic ring on the inside of the outer connecting ring has opposite magnetism to the strong magnetic ring on the inner adjusting ring. A connecting plate is fixedly connected to the outside of the outer connecting ring, and a traction rope is fixedly connected to the outside of the connecting plate. The other end of the traction rope is fixedly connected to the elastic jet pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are: (1) A first linkage roller is provided, and the scraping rubber strips distributed in a ring array on its outer side are closely attached to the outer surface of the conveyor belt. When the drive motor drives the conveyor belt through the drive roller, the drive roller drives the first linkage roller to rotate synchronously through the linkage belt, so that the scraping rubber strips rotate accordingly. This can effectively scrape off larger particles or sticky impurities attached to the surface of the conveyor belt, preventing impurities from entering the subsequent packaging process with the conveyor belt, thus reducing the slag removal pressure from the source. The scraping rubber strips are made of elastic rubber material, which ensures the scraping effect without causing wear on the surface of the conveyor belt, thus extending the service life of the conveyor belt.

[0017] (2) When the drive roller rotates, it drives the reciprocating screw to rotate synchronously through the linkage belt. Under the rotation of the reciprocating screw, the adjusting plug will move back and forth in a straight line along the inner wall of the fixed barrel. When the adjusting plug moves towards the first connecting pipe, the space of the cavity on one side of the fixed barrel decreases and the air pressure increases. At this time, the gas inside the fixed barrel will be pressed into the first connecting box through the first connecting pipe. As the reciprocating screw continues to rotate, the adjusting plug moves back and forth continuously, thereby realizing the continuous supply of air to the inside of the first connecting box. The gas entering the first connecting box is then sprayed out at high speed through the elastic jet pipe that runs through it towards the side of the conveyor belt, and the surface of the conveyor belt is cleaned by blowing air, blowing away the fine dust and debris that were not scraped off by the scraper rubber strip from the surface of the conveyor belt.

[0018] (3) When the adjusting plug moves away from one of the first connecting pipes, the space inside the fixed barrel increases and the air pressure decreases. At this time, the outside air will be drawn into the fixed barrel through the one-way valve set on the fixed barrel, completing the air intake process. When the adjusting plug moves closer to the first connecting pipe again, it will press the drawn air into the first connecting box. This cycle ensures the continuous and stable operation of the blowing mechanism. The one-way valve set inside the first connecting pipe strictly restricts the gas to flow only from the fixed barrel to the first connecting box, effectively preventing the gas in the first connecting box from flowing back to the fixed barrel, thus ensuring the gas supply pressure and efficiency.

[0019] (4) When the adjusting plug moves away from the first connecting pipe and the fixed barrel is sucked in, the second connecting box and the fixed barrel are connected by the second connecting pipe. Since the one-way valve inside the second connecting pipe only allows gas to flow from the second connecting box to the fixed barrel in one direction, a certain negative pressure will be formed inside the second connecting box. Under the action of this suction pressure, the inner adjusting ring that is slidably connected inside the second connecting box will slide along its inner wall toward the second connecting pipe. The strong magnetic ring fixedly connected in the middle of the inner adjusting ring will move accordingly. Since the strong magnetic ring on the inner side of the outer connecting ring and the strong magnetic ring on the inner adjusting ring have opposite magnetic properties and attract each other, the movement of the inner adjusting ring will drive the outer connecting ring to slide synchronously on the outside of the second connecting box. The connecting plate fixedly connected on the outside of the outer connecting ring pulls the elastic jet pipe through the traction rope, causing the elastic jet pipe to deform and swing to one side.

[0020] (5) When the adjusting plug moves and the fixed barrel supplies air to the first connecting box, the air pressure inside the first connecting box increases, the air pressure on the other side of the second connecting box decreases and forms a negative pressure. The inner adjusting ring is reset under the pressure, and the outer connecting ring is also reset. The tension of the traction rope on the elastic jet pipe disappears, and the elastic jet pipe returns to its initial position by its own elasticity. This realizes the left and right swing of the elastic jet pipe during the blowing process, which greatly increases the coverage of the blowing dust removal, avoids the cleaning dead corner that may exist in the fixed direction of blowing, and significantly improves the removal effect of fine impurities on the surface of the conveyor belt. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the linkage belt of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the first linkage roller of the present invention; Figure 4 This is a schematic diagram of the scraping rubber strip structure of the present invention; Figure 5 This is a schematic diagram of the elastic jet pipe structure of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the reciprocating lead screw of the present invention; Figure 7 This is a three-dimensional cross-sectional view of the first connecting box of the present invention; Figure 8 This is a three-dimensional cross-sectional view of the second connecting box of the present invention; Figure 9 This is a three-dimensional cross-sectional view of the inner adjustment ring structure of the present invention.

[0022] In the diagram: 1. Conveyor body; 2. Control box; 3. Drive motor; 4. Drive roller; 5. Linkage belt; 6. First linkage roller; 7. Linkage reciprocating screw; 8. Fixed barrel; 9. Scraper rubber strip; 10. First connecting box; 11. Second connecting box; 12. Elastic air jet pipe; 13. Traction rope; 14. Adjusting plug; 15. First connecting pipe; 16. Second connecting pipe; 17. Connecting plate; 18. Outer connecting ring; 19. Inner adjusting ring; 20. High-strength magnetic ring. Detailed Implementation

[0023] 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.

[0024] Example 1: As Figures 1-4 The present invention provides the following technical solution: a slag removal conveying mechanism for packaging jujube and walnut cakes, wherein a control box 2 for controlling the conveyor body 1 is provided on the side of the conveyor body 1, a drive motor 3 is fixedly connected to the outer side of the conveyor body 1, a drive roller 4 is rotatably connected to the inner side of the conveyor body 1, and the outer end of the drive roller 4 is fixedly connected to the output end of the drive motor 3. A first linkage roller 6 is rotatably connected to the conveyor body 1, a linkage reciprocating screw 7 is rotatably connected to the conveyor body 1, and the first linkage roller 6 and the linkage reciprocating screw 7 are located at the same horizontal position. The outer ends of the linkage reciprocating screw 7, the first linkage roller 6 and the drive roller 4 are jointly fitted with a linkage belt 5. A scraping rubber strip 9 is fixedly connected to the outer side of the first linkage roller 6, and the scraping rubber strip 9 is arranged in a ring array about the center point of the first linkage roller 6, and the outer side of the scraping rubber strip 9 is in contact with the outer surface of the conveyor belt.

[0025] After the drive motor 3 starts, its output end drives the drive roller 4 to rotate, which in turn drives the conveyor belt to perform conveying operations. At the same time, the drive roller 4 drives the first linkage roller 6 and the linkage reciprocating screw 7 to rotate synchronously through the linkage belt 5. When the first linkage roller 6 rotates, the scraping rubber strips 9 distributed in a ring array on its outer side rotate accordingly. Since the outer side of the scraping rubber strips 9 is in close contact with the outer surface of the conveyor belt, it can effectively scrape off larger particles of residue attached to the surface of the conveyor belt, such as jujube pit fragments, walnut shell fragments, and some cake fragments that are stuck to the conveyor belt due to compression. The scraping rubber strips 9 are made of highly elastic and wear-resistant rubber material, which is in close contact with the surface of the conveyor belt and has a certain degree of cushioning. While ensuring the scraping effect, it can avoid hard scratches or wear on the surface of the conveyor belt, effectively extending the service life of the conveyor belt and reducing equipment maintenance costs.

[0026] Example 2: Figures 4-7 The present invention provides the following technical solution: a slag removal and conveying mechanism for packaging jujube and walnut cakes, wherein an air blowing mechanism is provided inside the conveyor body 1. The air blowing mechanism supplies air to the inside of the first connecting box 10 by rotating the linkage reciprocating screw 7 included therein. The air blowing mechanism includes a fixed barrel 8, which is fixedly connected to the conveyor body 1, and the internal cavity of the fixed barrel 8 is sealed with the conveyor body 1. The linkage reciprocating screw 7 is located in the internal cavity of the fixed barrel 8. An adjusting plug 14 is threaded onto the outer side of the reciprocating screw 7, and the outer surface of the adjusting plug 14 is in contact with the inner wall of the fixed barrel 8. A first connecting pipe 15 is connected through the lower side of the fixed barrel 8, and a first connecting box 10 is fixedly connected to the lower side of the fixed barrel 8. An elastic jet pipe 12 is provided through the first connecting box 10 facing the conveyor belt. The other end of the first connecting pipe 15 is connected through the first connecting box 10. A one-way valve is provided inside the first connecting pipe 15, so that gas can only flow from the fixed barrel 8 to the first connecting box 10 in one direction.

[0027] The reciprocating screw 7 rotates continuously under the drive of the linkage belt 5. Since the adjusting plug 14 is threadedly connected to the reciprocating screw 7, and its outer surface is tightly fitted to the inner wall of the fixed barrel 8, the adjusting plug 14 will make a stable reciprocating linear motion along the inner cavity of the fixed barrel 8 under the action of the threaded transmission. When the adjusting plug 14 moves closer to the first connecting pipe 15, the effective volume of the inner cavity of the fixed barrel 8 decreases, the internal gas is compressed, and the gas pressure increases. At this time, the one-way valve inside the first connecting pipe 15 opens under the action of gas pressure, and the compressed gas is forced into the interior of the first connecting box 10 through the first connecting pipe 15. With the reciprocating screw... The continuous rotation of the lead screw 7 causes the adjusting plug 14 to repeatedly move closer to and further away from the first connecting pipe 15, thereby achieving a continuous supply of air to the inside of the first connecting box 10. The compressed gas entering the first connecting box 10 will quickly fill its internal cavity, and then be sprayed out through multiple sets of elastic jet pipes 12 that are evenly arranged on one side of the conveyor belt. The airflow directly acts on the surface of the conveyor belt below, which can completely blow away the fine dust, powdery debris, and some small impurities with weak adhesion that remain after the scraping rubber strip 9 has been removed from the surface of the conveyor belt, forming a secondary deep cleaning of the conveyor belt and further improving the slag removal effect.

[0028] Example 3: Figures 7-9 The present invention provides the following technical solution: a slag removal conveying mechanism for packaging jujube and walnut cakes, wherein the conveyor body 1 is further provided with a swinging mechanism. The swinging mechanism drives the elastic jet pipe 12 contained therein to swing through the suction action of its blowing mechanism, thereby increasing the slag removal range. After the elastic jet pipe 12 is deformed under force, it returns to its original position through its own elasticity when no force is applied. The swinging mechanism includes a second connecting box 11, which is fixedly connected below the first connecting box 10. A second connecting pipe 16 is connected through the second connecting box 11 and the fixed bucket 8. At the same time, a one-way valve is provided inside the second connecting pipe 16, so that gas can only flow unidirectionally from the second connecting box 11 to the fixed bucket 8. An inner adjusting ring 19 is slidably connected inside the receiving box 11, and a strong magnetic ring 20 is fixedly connected to the middle of the inner adjusting ring 19. The outer side of the inner adjusting ring 19 is in contact with the inner wall of the second connecting box 11. Under the action of the suction air pressure, the inner adjusting ring 19 slides along the inside of the second connecting box 11. An outer connecting ring 18 is slidably connected to the outer side of the second connecting box 11, and a strong magnetic ring 20 is also fixedly connected to the inner side of the outer connecting ring 18. At the same time, the strong magnetic ring 20 set on the inner side of the outer connecting ring 18 has the opposite magnetism to the strong magnetic ring 20 set on the inner adjusting ring 19. A connecting plate 17 is fixedly connected to the outer side of the outer connecting ring 18, and a traction rope 13 is fixedly connected to the outer side of the connecting plate 17. The other end of the traction rope 13 is fixedly connected to the elastic jet pipe 12.

[0029] When the regulating plug 14 moves away from one of the first connecting pipes 15, the space inside the other side of the fixed barrel 8 increases, and the air pressure decreases. Due to the restriction of the one-way valve inside the second connecting pipe 16, the gas can only flow from the second connecting box 11 to the fixed barrel 8. Therefore, a negative pressure environment is formed inside the second connecting box 11. Under the action of this negative pressure, the inner regulating ring 19, which is slidably connected inside the second connecting box 11, will overcome the friction between itself and the inner wall of the second connecting box 11 and slide towards the corresponding position of the second connecting pipe 16. The strong magnetic ring 20 fixedly connected in the middle of the inner regulating ring 19 also moves synchronously. Since the strong magnetic ring 20 on the inner side of the outer connecting ring 18 has opposite magnetism to the strong magnetic ring 20 on the inner regulating ring 19, the opposite poles attract each other and generate a strong magnetic attraction. The movement of the inner regulating ring 19 will drive the outer connecting ring 18 to slide synchronously on the outside of the second connecting box 11 through magnetic force. The connecting plate 17 moves accordingly, and then the traction rope 13 applies a pulling force to the elastic jet pipe 12, causing the elastic jet pipe to bend and swing to one side, expanding the lateral coverage of the jet. When the adjusting plug 14 moves in the opposite direction, the second connecting pipe 16 on the other side performs a suction operation, and the air pressure in its cavity is relatively reduced to form a negative pressure. The inner adjusting ring 19 moves and resets under the push of the air pressure difference, and the outer connecting ring 18 also resets under the action of magnetic force. The pulling force of the traction rope 13 on the elastic jet pipe 12 disappears, and the elastic jet pipe 12 returns to its initial position due to its good elasticity. By continuously moving the position of the adjusting plug 14, the elastic jet pipe 12 swings left and right regularly during the blowing process. Compared with fixed-direction jetting, this dynamic jetting method can more comprehensively cover the surface of the conveyor belt, effectively eliminating the cleaning dead angles that may exist due to fixed-angle jetting, and ensuring the cleanliness of the conveyor belt before entering the packaging process.

[0030] 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 slag removal conveying mechanism for packaging jujube and walnut cakes, comprising a conveyor body (1), wherein a control box (2) for controlling the conveyor body (1) is provided on the side of the conveyor body (1), and a drive motor (3) is fixedly connected to the outer side of the conveyor body (1), and a drive roller (4) is rotatably connected to the inner side of the conveyor body (1), and the outer end of the drive roller (4) is fixedly connected to the output end of the drive motor (3), characterized in that, The conveyor body (1) is provided with an air blowing mechanism inside. The air blowing mechanism supplies air to the first connecting box (10) it contains by rotating the linkage reciprocating screw (7) it contains. The conveyor body (1) is also provided with a swing mechanism. The swing mechanism drives the elastic jet pipe (12) it contains to swing by the suction effect of its air blowing mechanism, thereby improving the dust removal range.

2. The slag removal and conveying mechanism for packaging jujube and walnut cakes according to claim 1, characterized in that: The first linkage roller (6) is rotatably connected to the conveyor body (1), and the linkage reciprocating screw (7) is rotatably connected to the conveyor body (1). The first linkage roller (6) and the linkage reciprocating screw (7) are located at the same horizontal position. The outer ends of the linkage reciprocating screw (7), the first linkage roller (6) and the drive roller (4) are all fitted with a linkage belt (5).

3. The slag removal and conveying mechanism for packaging jujube and walnut cakes according to claim 2, characterized in that: The outer side of the first linkage roller (6) is fixedly connected with a scraping rubber strip (9), and the scraping rubber strip (9) is arranged in a ring array about the center point of the first linkage roller (6), and the outer side of the scraping rubber strip (9) is in contact with the outer surface of the conveyor belt.

4. The slag removal and conveying mechanism for packaging jujube and walnut cakes according to claim 1, characterized in that: The blowing mechanism includes a fixed barrel (8), which is fixedly connected to the conveyor body (1), and the internal cavity of the fixed barrel (8) is sealed with the conveyor body (1). The linkage reciprocating screw (7) is located in the internal cavity of the fixed barrel (8).

5. The slag removal and conveying mechanism for packaging jujube and walnut cakes according to claim 4, characterized in that: The outer side of the reciprocating screw (7) is threaded with an adjusting plug (14), and the outer surface of the adjusting plug (14) is in contact with the inner wall of the fixed barrel (8). The lower side of the fixed barrel (8) is connected with a first connecting pipe (15).

6. The slag removal and conveying mechanism for packaging jujube and walnut cakes according to claim 5, characterized in that: The lower side of the fixed bucket (8) is fixedly connected to a first connecting box (10), and an elastic jet pipe (12) is provided through the first connecting box (10) facing the conveyor belt. After the elastic jet pipe (12) is deformed under force, it will be reset by its own elastic force when it is not under force.

7. The slag removal and conveying mechanism for packaging jujube and walnut cakes according to claim 6, characterized in that: The other end of the first connecting pipe (15) is connected through to the first connecting box (10). The first connecting pipe (15) is equipped with a one-way valve, so that the gas can only flow from the fixed bucket (8) to the first connecting box (10) in one direction.

8. The slag removal and conveying mechanism for packaging jujube and walnut cakes according to claim 7, characterized in that: The swing mechanism includes a second connecting box (11), which is fixedly connected below the first connecting box (10). A second connecting pipe (16) is connected through the second connecting box (11) and the fixed barrel (8). A one-way valve is provided inside the second connecting pipe (16), so that gas can only flow from the second connecting box (11) to the fixed barrel (8) in one direction. An inner adjusting ring (19) is slidably connected inside the second connecting box (11), and a strong magnetic ring (20) is fixedly connected to the middle of the inner adjusting ring (19). The outer side of the inner adjusting ring (19) is in contact with the inner wall of the second connecting box (11).

9. The slag removal and conveying mechanism for packaging jujube and walnut cakes according to claim 8, characterized in that: Under the action of the suction air pressure, the inner adjustment ring (19) slides along the inside of the second connecting box (11). The outer connecting ring (18) is slidably connected to the outer side of the second connecting box (11), and a strong magnetic ring (20) is also fixedly connected to the inner side of the outer connecting ring (18). At the same time, the strong magnetic ring (20) provided on the inner side of the outer connecting ring (18) has opposite magnetism to the strong magnetic ring (20) provided on the inner adjustment ring (19). A connecting plate (17) is fixedly connected to the outer side of the outer connecting ring (18), and a traction rope (13) is fixedly connected to the outer side of the connecting plate (17). The other end of the traction rope (13) is fixedly connected to the elastic jet pipe (12).

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