Marine ore fine iron powder storage device

Abstract

The invention relates to the technical field of fine iron powder storage equipment, in particular to a marine ore fine iron powder storage device which comprises a storage box, a cover plate is detachably connected to the top of the storage box, a U-shaped frame is fixedly connected to the center of one side of the storage box, and a first functional wheel and a moisture absorption assembly are rotationally connected to the top of the side, close to the center of the storage box, of the U-shaped frame. The bottom of the side, close to the center of the storage box, of the U-shaped frame is rotationally connected with a second functional wheel and a lifting assembly, the center of the side, away from the storage box, of the U-shaped frame is fixedly connected with a rotation driving assembly, and the top of one side of the storage box is fixedly connected with an air inlet assembly. Through cooperative use of the rotation driving assembly, the air entraining assembly, the material lifting assembly, the moisture absorption assembly, the air inlet assembly, a first functional wheel and a second functional wheel, ventilation and material lifting work can be conducted on ore iron fine powder in the storage box, and continuous filtering and moisture absorption work can be conducted on offshore air entering the storage box; and therefore, the storage quality of the equipment on the ore iron powder can be improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of iron concentrate storage devices, and in particular to a marine ore iron concentrate storage device. BACKGROUND

[0002] The prior art discloses an iron concentrate storage device with a built-in drying mechanism, which can change the storage capacity between the heating bin and the adjusting bin by arranging the adjusting rod, can avoid using multiple storage bins to store more iron concentrate, improves convenience, reduces use cost, and can stir the iron concentrate at the edge position in the heating bin when the first stirring rod and the second stirring rod rotate, can turn the iron concentrate at the middle position in the heating bin when the stirring plate rotates, promotes the uniform heating of the iron concentrate at the middle position in the heating bin, promotes the uniform drying of the iron concentrate, and thereby improves the drying effect of the iron concentrate.

[0003] However, the device still has the following problems: 1. Although the device can store more iron concentrate, when the amount of iron concentrate is too much, the bottom iron concentrate will be compressed and caked due to the continuous pressure of the top iron concentrate, thereby affecting the storage quality of the device, 2. During the exhaust process, external gas is often introduced into the device, and when the device is on a ship, the gas introduced into the device has more moisture due to the relatively humid air on the sea, thereby affecting the storage of the iron concentrate, and therefore the application provides a marine ore iron concentrate storage device. SUMMARY

[0004] The purpose of the application is to solve the problems in the background art and provide a marine ore iron concentrate storage device.

[0005] In order to achieve the above-mentioned purpose, the application adopts the following technical scheme: A marine ore iron concentrate storage device, comprising a storage box, a cover plate detachably connected to the top of the storage box, a U-shaped frame fixedly connected to the center of one side of the storage box, a first functional wheel and a moisture absorbing assembly rotatably connected to the top of the side of the U-shaped frame close to the center of the storage box, a second functional wheel and a material lifting assembly rotatably connected to the bottom of the side of the U-shaped frame close to the center of the storage box, a driving assembly fixedly connected to the center of the side of the U-shaped frame away from the storage box, an air inlet assembly fixedly connected to the top of one side of the storage box, a first drying assembly fixedly connected to the bottom of one side of the storage box, a second drying assembly fixedly connected to the other side of the storage box, and an air guiding assembly fixedly connected to the top of the second drying assembly.

[0006] In the above-mentioned marine ore iron concentrate storage device, the second drying component includes a gas distribution plate. An electric heater is fixedly connected to one side of the gas distribution plate. The output rod of the electric heater extends through the gas distribution plate into its interior. Heat transfer pipes are fixedly connected to the front and rear ends of the other side of the gas distribution plate. The two heat transfer pipes are located inside the front and rear end plates of the storage tank, respectively.

[0007] In the above-mentioned marine ore iron concentrate storage device, the air intake assembly includes an air pump, an air extraction pipe is fixedly connected to one side of the air pump, the side of the air extraction pipe away from the air pump extends through the storage tank into its interior, and an exhaust pipe is fixedly connected to the bottom of the air pump, the bottom of the exhaust pipe extends through the air distribution plate into its interior.

[0008] In the above-mentioned marine ore iron concentrate storage device, the drive assembly includes a drive motor, and a first gear is fixedly connected to the outer surface of the drive motor output rod. The outer surface of the first gear meshes with the outer surfaces of the first functional wheel and the second functional wheel.

[0009] In the above-mentioned marine ore iron concentrate storage device, the first drying component includes a gas collecting plate, one side of which is connected to two heat transfer pipes, and the other side of which is fixedly connected to a ventilation rod. A U-shaped jet plate is fixedly connected to the side of the ventilation rod away from the gas collecting plate.

[0010] In the above-mentioned marine ore iron concentrate storage device, the lifting assembly includes a first rotating rod, a first pawl disc is fixedly connected to the outer surface of the first rotating rod located inside the U-shaped frame, the first pawl disc is in contact with the inner surface of the second functional wheel, and a lifting arc plate is fixedly connected to the outer surface of the first rotating rod located inside the storage box.

[0011] In the above-mentioned marine ore iron concentrate storage device, the moisture-absorbing component includes a second rotating rod. A second pawl disc is fixedly connected to the outer surface of the second rotating rod located inside the U-shaped frame. The second pawl disc is in contact with the inner surface of the first functional wheel. A connecting plate is fixedly connected to the outer surface of the second rotating rod located outside the U-shaped frame. Mounting plates are fixedly connected to the top and bottom of the connecting plate. Filter screens are fixedly connected to both sides of the inner cavity of the mounting plate. A moisture-absorbing cloth is fixedly connected to the center of the inner cavity of the mounting plate. An exhaust groove is provided on the outer surface of the mounting plate.

[0012] In the aforementioned marine ore iron concentrate storage device, the air intake assembly includes an air intake plate. The air intake plate has a transmission groove, a limiting plate groove, and a ventilation groove inside. A toothed plate is fixedly connected to the rear end of the transmission groove. There are two limiting plate grooves. Two springs are fixedly connected to the side walls of each limiting plate groove. A movable plate is fixedly connected to the side of the springs away from the storage box. A ring plate is fixedly connected between the two movable plates. The ring plate is located inside the ventilation groove. A third rotating rod is rotatably connected inside the ring plate. A sealing plate is fixedly connected to the outer surface of the third rotating rod inside the ring plate. A second gear is fixedly connected to the outer surface of the third rotating rod inside the transmission groove. The outer surface of the second gear meshes with the front end of the toothed plate.

[0013] Compared with existing technologies, the advantages of this invention are: 1. By using the first and second functional wheels in combination, the drive assembly can continuously lift the iron concentrate ore at the bottom of the storage tank when running in the forward direction, thus preventing the iron concentrate at the bottom from compacting and clumping due to the continuous pressure from the iron concentrate at the top, thereby improving the storage quality of the equipment. Furthermore, when running in the reverse direction, the drive assembly can change the position of the two mounting plates, allowing the filter screens and moisture-absorbing cloths installed on the two mounting plates to continuously filter and dehumidify the sea air entering the storage tank, further improving the storage quality of the equipment. 2. By using the air intake component and the air venting component together, the air venting component can ventilate the inside of the storage tank. This prevents the pressure increase caused by the gasification reaction between certain substances in the air and the iron concentrate during the storage process. In addition, the air intake component can automatically seal when the installation plate is repositioned, thus preventing moisture from the sea from entering the inside of the storage tank and causing the iron concentrate to become damp. 3. By combining the first and second drying components, the iron concentrate ore inside the storage tank can be dried and dehumidified using the gas heated once, and the installation plate that has absorbed a certain amount of moisture can be dried by blowing the waste heat gas, thereby improving the functionality of the equipment. In summary, by using the drive assembly, air intake assembly, material lifting assembly, moisture absorption assembly, air intake assembly, first functional wheel, and second functional wheel in combination, this invention can not only ventilate and lift the iron concentrate ore inside the storage tank, but also continuously filter and absorb moisture from the sea air entering the storage tank, thereby improving the storage quality of the iron concentrate ore. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a front cross-sectional view of the moisture-absorbing component of the present invention.

[0016] Figure 3 This is a front cross-sectional view of the second drying component of the present invention.

[0017] Figure 4 This is a top cross-sectional view of the first drying component of the present invention.

[0018] Figure 5 This is a side cross-sectional view of the drive assembly of the present invention.

[0019] Figure 6 This is the present invention. Figure 5 Enlarged view of point A.

[0020] Figure 7 This is a side cross-sectional view of the material lifting component of the present invention.

[0021] Figure 8 This is a three-dimensional structural diagram of the air intake assembly of the present invention.

[0022] Figure 9 This is a top-view cross-sectional view of the second gear of the air intake assembly of the present invention.

[0023] Figure 10 This is a top sectional view of the air intake plate of the air intake assembly of the present invention.

[0024] In the diagram: 1. Storage box; 2. Cover plate; 3. U-shaped frame; 4. First functional wheel; 5. Second functional wheel; 6. Air distribution plate; 7. Electric heater; 8. Heat transfer pipe; 9. Air pump; 10. Air extraction pipe; 11. Exhaust pipe; 12. Drive motor; 13. First gear; 14. Air collection plate; 15. Ventilation rod; 16. U-shaped jet plate; 17. First rotating rod; 18. First pawl disc; 19. Material lifting arc plate; 20. Second rotating rod; 21. Second pawl disc; 22. Connecting plate; 23. Mounting plate; 24. Filter screen; 25. Moisture-absorbing cloth; 26. Exhaust groove; 27. Air inlet plate; 28. Transmission groove; 29. ​​Limiting plate groove; 30. Ventilation groove; 31. Toothed plate; 32. Spring; 33. Moving plate; 34. Ring plate; 35. Third rotating rod; 36. Sealing plate; 37. Second gear. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] Reference Figures 1-7 A marine iron ore concentrate storage device includes a storage tank 1. A cover plate 2 is detachably connected to the top of the storage tank 1. Opening the cover plate 2 allows workers to pour iron ore concentrate into the storage tank 1. A U-shaped frame 3 is fixedly connected to the center of one side of the storage tank 1. A first functional wheel 4 and a moisture-absorbing component are rotatably connected to the top of the U-shaped frame 3 near the center of the storage tank 1. A second functional wheel 5 and a material lifting component are rotatably connected to the bottom of the U-shaped frame 3 near the center of the storage tank 1. A drive component is fixedly connected to the center of the U-shaped frame 3 away from the storage tank 1. An air intake component is fixedly connected to the top of one side of the storage tank 1. A first drying component is fixedly connected to the bottom of one side of the storage tank 1. A second drying component is fixedly connected to the other side of the storage tank 1. An air priming component is fixedly connected to the top of the second drying component.

[0028] It should be noted that the outer surfaces of the first functional wheel 4 and the second functional wheel 5 are both gear-shaped, while the inner surfaces of the first functional wheel 4 and the second functional wheel 5 are both ratchet-shaped, wherein the ratchet directions of the first functional wheel 4 and the second functional wheel 5 are opposite.

[0029] refer to Figures 7-10The air intake assembly includes an air intake plate 27. The air intake plate 27 has a transmission groove 28, a limiting groove 29, and a ventilation groove 30 inside. A toothed plate 31 is fixedly connected to the rear end of the transmission groove 28. There are two limiting grooves 29, and two springs 32 are fixedly connected to the side walls of each limiting groove 29. A movable plate 33 is fixedly connected to the side of the springs 32 away from the storage box 1. A ring plate 34 is fixedly connected between the two movable plates 33. The ring plate 34 is located inside the ventilation groove 30. A third rotating rod 35 is rotatably connected inside the ring plate 34. A sealing plate 36 is fixedly connected to the outer surface of the third rotating rod 35 inside the ring plate 34. The third rotating rod 35 is fixedly connected to the outer surface of the transmission groove 28 with the second gear 37. The outer surface of the second gear 37 meshes with the front end of the toothed plate 31. When the moving plate 33 is subjected to pressure, the moving plate 33 will move inward along with the ring plate 34, the third rotating rod 35, the sealing plate 36 and the second gear 37, so that the second gear 37 can come into contact with the toothed plate 31. Then the second gear 37 can rotate along with the third rotating rod 35 and the sealing plate 36, so that the sealing plate 36 is in a lateral state, and the ventilation groove 30 inside the air intake plate 27 can be in a ventilation state.

[0030] It should be noted that if the movable plate 33 is not under pressure, the spring 32 can use its reaction force to make the movable plate 33 move outward along with the ring plate 34, the third rotating rod 35, the sealing plate 36 and the second gear 37. This allows the second gear 37 to rotate in the opposite direction, thereby causing the sealing plate 36 to seal the ring plate 34.

[0031] refer to Figures 2-4 The second drying component includes a gas distribution plate 6. An electric heater 7 is fixedly connected to one side of the gas distribution plate 6. The output rod of the electric heater 7 extends through the gas distribution plate 6 into its interior. Heat transfer tubes 8 are fixedly connected to the front and rear ends of the other side of the gas distribution plate 6. The two heat transfer tubes 8 are located inside the front and rear end plates of the storage tank 1, respectively. The operation of the electric heater 7 can heat the gas inside the gas distribution plate 6.

[0032] The first drying assembly includes a gas collecting plate 14. One side of the gas collecting plate 14 is connected to two heat transfer tubes 8, and a ventilation rod 15 is fixedly connected to the other side of the gas collecting plate 14. A U-shaped jet plate 16 is fixedly connected to the side of the ventilation rod 15 away from the gas collecting plate 14. When the gas collecting plate 14 receives gas, it will transmit the gas through the ventilation rod 15 to the interior of the U-shaped jet plate 16, and then discharge the gas through the slot of the U-shaped jet plate 16.

[0033] The gas extraction assembly includes a vacuum pump 9, with a vacuum pipe 10 fixedly connected to one side of the vacuum pump 9. The side of the vacuum pipe 10 away from the vacuum pump 9 extends through the storage tank 1 into its interior. An exhaust pipe 11 is fixedly connected to the bottom of the vacuum pump 9. The bottom of the exhaust pipe 11 extends through the gas distribution plate 6 into its interior. The operation of the vacuum pump 9 causes the vacuum pipe 10 to extract the gas inside the storage tank 1, and then the gas is transferred to the interior of the gas distribution plate 6 through the exhaust pipe 11. Finally, the gas is transferred to the interior of the gas collection plate 14 through the heat transfer pipe 8.

[0034] refer to Figures 2-6 The drive assembly includes a drive motor 12. A first gear 13 is fixedly connected to the outer surface of the output rod of the drive motor 12. The outer surface of the first gear 13 meshes with the outer surfaces of the first functional wheel 4 and the second functional wheel 5. The operation of the drive motor 12 allows the first gear 13 to drive the first functional wheel 4 and the second functional wheel 5 to rotate.

[0035] The material lifting assembly includes a first rotating rod 17. A first ratchet disc 18 is fixedly connected to the outer surface of the first rotating rod 17 located inside the U-shaped frame 3. The first ratchet disc 18 is in contact with the inner surface of the second functional wheel 5. A material lifting arc plate 19 is fixedly connected to the outer surface of the first rotating rod 17 located inside the storage box 1. When the first gear 13 drives the second functional wheel 5 to rotate in the opposite direction, the second functional wheel 5 will drive the first ratchet disc 18 to rotate in the opposite direction, thereby allowing the first rotating rod 17 to rotate in the opposite direction with the material lifting arc plate 19, so that the material lifting arc plate 19 can lift the iron concentrate ore inside the storage box 1.

[0036] The moisture-absorbing assembly includes a second rotating rod 20. A second ratchet disc 21 is fixedly connected to the outer surface of the second rotating rod 20 on the inner side of the U-shaped frame 3. The second ratchet disc 21 is in contact with the inner surface of the first functional wheel 4. A connecting plate 22 is fixedly connected to the outer surface of the second rotating rod 20 on the outer side of the U-shaped frame 3. Mounting discs 23 are fixedly connected to the top and bottom of the connecting plate 22. Filter screens 24 are fixedly connected to both sides of the inner cavity of the mounting disc 23. A moisture-absorbing cloth 25 is fixedly connected to the center of the inner cavity of the mounting disc 23. An exhaust groove 26 is provided on the outer surface of the mounting disc 23. When the first gear 13 drives the first functional wheel 4 to rotate forward, the first functional wheel 4 will drive the second ratchet disc 21 to rotate forward, which in turn allows the second rotating rod 20 to drive the connecting plate 22 and the mounting disc 23 to rotate forward, thereby changing the position of the two mounting discs 23.

[0037] It should be noted that when the mounting plate 23 moves to the position of the air intake plate 27, the mounting plate 23 can apply pressure to the moving plate 33, and the air entering the air intake plate 27 will be filtered and dehumidified through the filter screen 24 and the moisture-absorbing cloth 25.

[0038] The working principle and usage of this invention are explained in detail below: When using the equipment, the operator needs to first remove the cover plate 2, then put the iron concentrate into the storage box 1, and then run the air pump 9 so that the air extraction pipe 10 can extract the gas inside the storage box 1. Then, the gas is discharged into the gas distribution plate 6 through the exhaust pipe 11, and then the gas enters the gas collection plate 14 through the heat transfer pipe 8. The gas is then transmitted to the U-shaped jet plate 16 through the ventilation rod 15, and finally the gas is discharged to the mounting plate 23 at the bottom through the U-shaped jet plate 16.

[0039] It should be noted that during the above process, the electric heater 7 needs to run continuously to heat the gas entering the gas distribution plate 6, so that the heat transfer pipe 8 located inside the storage tank 1 can heat and dry the iron concentrate ore inside the storage tank 1. Because part of the temperature of the gas inside the heat transfer pipe 8 is transferred to the storage tank 1 through heat transfer, the temperature of the gas entering the U-shaped jet plate 16 will not be too high. As a result, the gas blown out by the U-shaped jet plate 16 can perform low-temperature blowing and drying of the moisture-absorbing cloth 25 connected to the bottom mounting plate 23.

[0040] It should be noted that during the above process, when the air extraction pipe 10 extracts a certain amount of gas from the storage tank 1, the storage tank 1 will be under negative pressure. This will allow the storage tank 1 to extract sea air through the air intake plate 27. At this time, the filter screen 24 and the moisture-absorbing cloth 25 connected to the top mounting plate 23 can filter and absorb dirt and moisture in the sea air.

[0041] It should be noted that after the iron concentrate ore enters the storage box 1, the operator can run the drive motor 12, which causes the first gear 13 to drive the first functional wheel 4 and the second functional wheel 5 to rotate in opposite directions. This causes the second functional wheel 5 to drive the first ratchet disc 18 to rotate in opposite directions, which in turn causes the first rotating rod 17 to drive the lifting arc plate 19 to rotate in opposite directions. This allows the lifting arc plate 19 to continuously lift the iron concentrate ore from the bottom of the storage box 1.

[0042] It should be noted that after the filter screen 24 and the moisture-absorbing cloth 25 connected to the top mounting plate 23 filter and absorb a certain amount of dirt and moisture, the drive motor 12 needs to be reversed to make the first gear 13 drive the first functional wheel 4 and the second functional wheel 5 to rotate in the forward direction. Then, the first functional wheel 4 drives the second ratchet disc 21 to rotate in the forward direction, which in turn makes the second rotating rod 20 rotate with the connecting plate 22 and the mounting plate 23. This causes the original bottom mounting plate 23 to be located at the top, and the original top mounting plate 23 to be located at the bottom. Then, the U-shaped air jet plate 16 is used to dry the mounting plate 23 that has moved to the bottom.

[0043] It should be noted that during the movement of the mounting plate 23, the spring 32 will drive the moving plate 33 to move through its reaction force, which will cause the second gear 37 to contact the toothed plate 31, and then the second gear 37 will drive the third rotating rod 35 and the sealing plate 36 to rotate, so that the sealing plate 36 can seal the ring plate 34, thereby preventing dirt and moisture in the sea air from entering the interior of the storage tank 1.

[0044] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A marine iron concentrate storage device, comprising a storage tank, characterized in that: The storage box has a cover plate detachably connected to its top. A U-shaped frame is fixedly connected to the center of one side of the storage box. A first functional wheel and a moisture-absorbing component are rotatably connected to the top of the U-shaped frame near the center of the storage box. A second functional wheel and a material lifting component are rotatably connected to the bottom of the U-shaped frame near the center of the storage box. A drive component is fixedly connected to the center of the U-shaped frame away from the storage box. An air intake component is fixedly connected to the top of one side of the storage box. A first drying component is fixedly connected to the bottom of one side of the storage box. A second drying component is fixedly connected to the other side of the storage box. An air ducting component is fixedly connected to the top of the second drying component.

2. The marine ore iron concentrate storage device according to claim 1, characterized in that: The second drying assembly includes a gas distribution plate. An electric heater is fixedly connected to one side of the gas distribution plate. The output rod of the electric heater extends through the gas distribution plate into its interior. Heat transfer tubes are fixedly connected to the front and rear ends of the other side of the gas distribution plate. The two heat transfer tubes are located inside the front and rear end plates of the storage tank, respectively.

3. A marine ore iron concentrate storage device according to claim 2, characterized in that: The air intake assembly includes an air pump, an air extraction pipe fixedly connected to one side of the air pump, the side of the air extraction pipe away from the air pump extending through the storage tank into its interior, and an exhaust pipe fixedly connected to the bottom of the air pump, the bottom of the exhaust pipe extending through the air distribution plate into its interior.

4. A marine ore iron concentrate storage device according to claim 3, characterized in that: The drive assembly includes a drive motor, and a first gear is fixedly connected to the outer surface of the drive motor output rod. The outer surface of the first gear meshes with the outer surfaces of the first functional wheel and the second functional wheel.

5. A marine ore iron concentrate storage device according to claim 4, characterized in that: The first drying assembly includes a gas collecting plate, one side of which is connected to two heat transfer tubes, and the other side of which is fixedly connected to a ventilation rod. A U-shaped jet plate is fixedly connected to the side of the ventilation rod away from the gas collecting plate.

6. A marine ore iron concentrate storage device according to claim 5, characterized in that: The material lifting assembly includes a first rotating rod, a first pawl disc fixedly connected to the outer surface of the first rotating rod located inside the U-shaped frame, the first pawl disc contacting the inner surface of the second functional wheel, and a material lifting arc plate fixedly connected to the outer surface of the first rotating rod located inside the storage box.

7. A marine ore iron concentrate storage device according to claim 6, characterized in that: The moisture-absorbing component includes a second rotating rod, a second ratchet disc fixedly connected to the outer surface of the second rotating rod located inside the U-shaped frame, the second ratchet disc contacting the inner surface of the first functional wheel, a connecting plate fixedly connected to the outer surface of the second rotating rod located outside the U-shaped frame, mounting plates fixedly connected to the top and bottom of the connecting plate, filter screens fixedly connected to both sides of the inner cavity of the mounting plate, a moisture-absorbing cloth fixedly connected to the center of the inner cavity of the mounting plate, and an exhaust groove opened on the outer surface of the mounting plate.

8. A marine ore iron concentrate storage device according to claim 7, characterized in that: The air intake assembly includes an air intake plate, which has a transmission groove, a limiting plate groove, and a ventilation groove inside. A toothed plate is fixedly connected to the rear end of the transmission groove. There are two limiting plate grooves, and two springs are fixedly connected to the side walls of each limiting plate groove. A movable plate is fixedly connected to the side of the springs away from the storage box. A ring plate is fixedly connected between the two movable plates. The ring plate is located inside the ventilation groove. A third rotating rod is rotatably connected inside the ring plate. A sealing plate is fixedly connected to the outer surface of the third rotating rod inside the ring plate. A second gear is fixedly connected to the outer surface of the third rotating rod inside the transmission groove. The outer surface of the second gear meshes with the front end of the toothed plate.

Images