Deep scarification fertilizer applicator

Abstract

The utility model discloses a deep scarification fertilizer applicator which comprises a deep scarification assembly, the deep scarification assembly comprises a mounting frame, a ploughing mechanism and a pressing mechanism are arranged on the mounting frame, a ploughing shovel is arranged on the ploughing mechanism, the pressing mechanism comprises a rolling device, the two ends of the rolling device are rotationally connected with elastic connecting mechanisms, and the rolling device is movably connected with the mounting frame through the elastic connecting mechanisms. A cutting disc is arranged on the mounting frame; the fertilizer applying assembly comprises a fertilizer box, the fertilizer box is arranged on a bottom plate, the bottom plate is fixedly connected to the mounting frame, the fertilizer box is provided with a feeding port and a discharging port, the discharging port is provided with a discharging mechanism, the discharging mechanism is in transmission connection with a motor, the motor is fixedly connected to the bottom plate, and the discharging mechanism communicates with a discharging pipe; according to the deep scarification fertilization plough, not only can soil be deeply scarified, but also fertilization can be carried out while ploughing is carried out, so that the working efficiency is improved, and the device is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a deep tillage and fertilization machine. Background Art

[0002] As the main corn producing area in my country, Northeast China has a large planting area and high yield. The sustainable development of corn production in Northeast China plays an irreplaceable role in ensuring national food security and is also the cornerstone for ensuring national economic and social stability and development. However, for a long time, corn has been mainly cultivated, with emphasis on use and neglect of maintenance. Long-term high utilization and unreasonable farming methods have led to increasingly serious problems such as shallowing of the soil tillage layer, reduced nutrients, and deterioration of soil structure in the Northeast Black Soil Region. Soil productivity has declined, and the stability of crop yields has decreased, seriously restricting the sustainable development of regional food production.

[0003] With the expansion of agricultural production intensification and scale, large-scale agricultural machinery has become popular, which will inevitably lead to the occurrence of soil compaction problems. Soil compaction is a comprehensive manifestation of land deterioration, and is known as one of the three major threats to agricultural production along with soil erosion and organic matter decline. Soil compaction is one of the key obstacles affecting farmland soil quality and crop growth. The soil compaction and thinning of the tillage layer caused by long-term intensive farming have gradually become prominent, becoming a key issue restricting the healthy growth of crops. After soil compaction, the soil compaction increases, the bulk density increases, and the porosity decreases, which hinders the transmission of water, air, and heat in the soil layer, destroys the soil structure function, and thus affects crop growth and yield. Therefore, deep loosening can break the plow bottom layer, increase the thickness of the tillage layer, promote deep rooting, and improve the resistance and lodging resistance of plants. In this process, combined with fertilization, fertilizer can be directly applied to the deep soil, so that the fertilizer and soil are more fully mixed, thereby improving the utilization rate of fertilizer.

[0004] The patent with publication number CN219577782U discloses an integrated plowing and deep loosening machine, including a fixed seat and a sleeve, a plowing assembly is detachably fixed in the middle part of one side of the fixed seat in an upper and lower symmetrical manner, and adjustment holes are arranged linearly in the middle part of one side of the fixed seat in an upper and lower symmetrical manner. The front ends of the two sleeves are integrally provided with a fixing plate, and two fixing holes are provided on the two fixing plates and the rear end of the fixed seat. Sliding rods are respectively slidably connected in the two sleeves in an upper and lower manner, and deep loosening shovels corresponding to the plowing assembly are symmetrically fixedly installed at the top and bottom ends of the upper and lower sliding rods.

[0005] In the above device, plowing and deep loosening operations are performed during tillage by means of a plowing assembly and a corresponding deep loosening shovel detachably connected to the rear end of the plowing assembly. However, the above structure cannot realize fertilization during deep loosening of the soil, and its function is relatively simple. Therefore, a deep loosening and topdressing machine is provided to solve the above problem. Utility Model Content

[0006] The utility model aims to provide a deep tillage and fertilization machine to solve the problems existing in the above-mentioned prior art, and can fertilize the land while deep tilling the land, thereby improving work efficiency.

[0007] To achieve the above purpose, the utility model provides the following solution: The utility model provides a deep tillage fertilization machine, comprising:

[0008] A deep loosening component, the deep loosening component comprises a mounting frame, the mounting frame is provided with a plowing mechanism and a pressing mechanism, the plowing mechanism is provided with a plow shovel, the pressing mechanism comprises a roller, both ends of the roller are rotatably connected with an elastic connecting mechanism, the roller is movably connected to the mounting frame through the elastic connecting mechanism, and the mounting frame is provided with a disc knife;

[0009] A fertilization component, the fertilization component includes a fertilizer box, the fertilizer box is arranged on a base plate, the base plate is fixedly connected to the mounting frame, the fertilizer box is provided with a feed inlet and a discharge port, the discharge port is provided with a discharge mechanism, the discharge mechanism is transmission-connected to a motor, the motor is fixedly connected to the base plate, the discharge mechanism is connected to a discharge pipe, and the discharge end of the discharge pipe is fixedly connected to the back of the plow shovel.

[0010] Preferably, the plowing mechanism includes a first connecting rod and a plug-in tube, a plurality of reinforcing beams are fixedly connected to the mounting frame, the first connecting rod is fixedly connected to the reinforcing beam, the plug-in tube is fixedly connected to the plow shovel, the first connecting rod is inserted into the plug-in tube, a plurality of first connecting holes are formed on the first connecting rod, a plurality of second connecting holes are formed on the plug-in tube, and positioning pins are inserted into the first connecting hole and the second connecting hole.

[0011] Preferably, the elastic connection mechanism includes a second connecting rod, a third connecting rod and a fourth connecting rod, the first connecting plate and the second connecting plate are fixedly connected to the mounting frame, the fourth connecting rod is rotatably connected to the second connecting plate, the roller is rotatably connected to the fourth connecting rod, the second connecting rod is rotatably connected to the first connecting plate, a cavity and a through hole are provided in the third connecting rod, the through hole is communicated with the cavity, the second connecting rod is inserted into the through hole and the cavity, a limiting block is slidably connected in the cavity, the second connecting rod is fixedly connected to the limiting block, a spring is arranged between the second connecting rod and the third connecting rod, the third connecting plate is fixedly connected to the fourth connecting rod, and the third connecting rod is rotatably connected to the third connecting plate.

[0012] Preferably, a first baffle is fixedly connected to the second connecting rod, a second baffle is fixedly connected to the third connecting rod, the spring is sleeved outside the second connecting rod and the third connecting rod, one end of the spring abuts against the first baffle, and the other end of the spring abuts against the second baffle.

[0013] Preferably, the fertilizer box is fixedly connected to the base plate by a plurality of pillars, the discharging mechanism comprises a shell, a discharging plate is rotatably connected inside the shell, a plurality of grooves are provided on the discharging plate, the shell is respectively connected to the discharging port and the discharging pipe, a through hole is provided on the base plate, the discharging pipe passes through the through hole, a rotating shaft is fixedly connected to the discharging plate, the rotating shaft extends out of the shell, and the motor is drivingly connected to the rotating shaft.

[0014] Preferably, the motor output end is fixedly connected to a first pulley, the rotating shaft is fixedly connected to a second pulley, the first pulley and the second pulley are connected via a belt drive, and the housing and the base plate are fixedly connected via a support rod.

[0015] Preferably, a plurality of fifth connecting rods are fixedly connected to the reinforcing beam, the disc knife is rotatably connected to the fifth connecting rod, a plurality of sixth connecting rods are fixedly connected to the mounting frame, a roller is rotatably connected to the sixth connecting rod, a seventh connecting rod is rotatably connected to the mounting frame, a fixing ring is fixedly connected to the seventh connecting rod, a battery is fixedly connected to the base plate, and the battery is electrically connected to the motor.

[0016] Preferably, the roller comprises a plurality of straight rods and two circular rotating plates, the plurality of straight rods are fixedly connected to the outer edges of the circular rotating plates, and the circular rotating plates are rotatably connected to the fourth connecting rod.

[0017] The utility model discloses the following technical effects: when the device is in use, it is driven by agricultural power equipment, the plow shovel is used for plowing the land, the roller is used for rolling the turned-up soil blocks, mainly for breaking the soil blocks, the elastic connection mechanism can make the roller keep a certain pressure on the soil blocks, the disc knife is used to cut off the longer straws to prevent the straws from being entangled in the device, the fertilizer box is used to store fertilizer, the fertilizer is discharged from the discharge port, and enters the discharge pipe through the discharge mechanism, the discharge mechanism can control the discharge speed of the fertilizer, when the plow shovel plows the land, the fertilizer will fall on the plowed position, so that the fertilizer is deep in the soil. The utility model can not only deep loosen the land, but also fertilize while plowing the land, thereby improving work efficiency, and the device is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a schematic diagram of the structure of the subsoiling and fertilizing machine of the utility model;

[0020] Figure 2 for Figure 1 A partial enlarged view of a;

[0021] Figure 3 for Figure 1 A partial enlarged view of middle b;

[0022] Among them, 1. mounting frame; 2. plow shovel; 3. roller; 4. disc knife; 5. fertilizer box; 6. bottom plate; 7. feed port; 8. discharge port; 9. motor; 10. discharge pipe; 11. first connecting rod; 12. plug-in tube; 13. reinforcing beam; 14. first connecting hole; 15. second connecting hole; 16. positioning pin; 17. second connecting rod; 18. third connecting rod; 19. fourth connecting rod; 20. first connecting plate; 21. second connecting plate; 22. cavity; 23. limit block; 24. spring; 25. third connecting plate; 26. first baffle; 27. second baffle; 28. shell; 29. ​​discharge plate; 30. groove; 31. rotating shaft; 32. first pulley; 33. belt; 34. fifth connecting rod; 35. sixth connecting rod; 36. roller; 37. seventh connecting rod; 38. straight rod; 39. rotating plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Reference Figure 1-3 The utility model provides a deep tillage and fertilization machine, comprising:

[0026] The deep loosening assembly comprises a mounting frame 1, on which a plowing mechanism and a pressing mechanism are arranged, the plowing mechanism is provided with a plow shovel 2, the pressing mechanism comprises a roller 3, both ends of the roller 3 are rotatably connected with an elastic connection mechanism, the roller 3 is movably connected to the mounting frame 1 through the elastic connection mechanism, and a disc knife 4 is arranged on the mounting frame 1;

[0027] The fertilization assembly includes a fertilizer box 5, which is arranged on a base plate 6, and the base plate 6 is fixedly connected to the mounting frame 1. A feed inlet 7 and a discharge port 8 are provided on the fertilizer box 5. A discharge mechanism is provided on the discharge port 8. The discharge mechanism is transmission-connected to a motor 9, and the motor 9 is fixedly connected to the base plate 6. The discharge mechanism is connected to a discharge pipe 10, and the discharge end of the discharge pipe 10 is fixedly connected to the back of the plow shovel 2.

[0028] When in use, the device is driven by agricultural power equipment, the plow 2 is used for plowing the land, the roller 3 is used for rolling the turned-up soil blocks, mainly to break the soil blocks, the elastic connection mechanism can enable the roller 3 to maintain a certain pressure on the soil blocks, the disc knife 4 is used to cut off longer straws to prevent the straws from being entangled in the device, and the fertilizer box 5 is used to store fertilizer. The fertilizer is discharged from the discharge port 8 and enters the discharge pipe 10 through the discharge mechanism. The discharge mechanism can control the discharge speed of the fertilizer. When the plow 2 plows the land, the fertilizer will fall on the plowed position, so that the fertilizer is deep in the soil.

[0029] A further optimized solution is that the plowing mechanism includes a first connecting rod 11 and a plug-in tube 12, a plurality of reinforcing beams 13 are fixedly connected to the mounting frame 1, the first connecting rod 11 is fixedly connected to the reinforcing beam 13, the plug-in tube 12 is fixedly connected to the plow shovel 2, the first connecting rod 11 is inserted into the plug-in tube 12, a plurality of first connecting holes 14 are formed on the first connecting rod 11, a plurality of second connecting holes 15 are formed on the plug-in tube 12, and positioning pins 16 are inserted into the first connecting holes 14 and the second connecting holes 15.

[0030] The first connecting rod 11 is inserted into the plug tube 12. The first connecting rod 11 can move in the plug tube 12 and is fixed in position by a positioning pin 16. When the plowing depth needs to be adjusted, the positioning pin 16 is pulled out, the first connecting hole 14 is aligned with the different second connecting hole 15, and then the positioning pin 16 is inserted.

[0031] A further optimized solution is provided, in which the elastic connection mechanism includes a second connecting rod 17, a third connecting rod 18 and a fourth connecting rod 19. A first connecting plate 20 and a second connecting plate 21 are fixedly connected to the mounting frame 1. The fourth connecting rod 19 is rotatably connected to the second connecting plate 21. The roller 3 is rotatably connected to the fourth connecting rod 19. The second connecting rod 17 is rotatably connected to the first connecting plate 20. A cavity 22 and a through hole are provided in the third connecting rod 18. The through hole is communicated with the cavity 22. The second connecting rod 17 is inserted into the through hole and the cavity 22. A limiting block 23 is slidably connected in the cavity 22. The second connecting rod 17 is fixedly connected to the limiting block 23. A spring 24 is arranged between the second connecting rod 17 and the third connecting rod 18. A third connecting plate 25 is fixedly connected to the fourth connecting rod 19. The third connecting rod 18 is rotatably connected to the third connecting plate 25.

[0032] The roller 3 is rotatably connected to the mounting frame 1 via the fourth connecting rod 19, and the second connecting rod 17 moves in the through hole and the cavity 22 of the third connecting rod 18. The spring 24 can keep the second connecting rod 17 and the third connecting rod 18 in an outwardly stretched state, so that the roller 3 maintains a certain pressure on the soil block, and the limit block 23 moves in the cavity 22 to prevent the second connecting rod 17 from detaching from the third connecting rod 18.

[0033] To further optimize the solution, the first baffle 26 is fixedly connected to the second connecting rod 17, the second baffle 27 is fixedly connected to the third connecting rod 18, the spring 24 is sleeved outside the second connecting rod 17 and the third connecting rod 18, one end of the spring 24 abuts against the first baffle 26, and the other end of the spring 24 abuts against the second baffle 27.

[0034] The first stopper 26 and the second stopper 27 are used to stop the spring 24 .

[0035] A further optimized solution is that the fertilizer box 5 is fixedly connected to the base plate 6 by a number of pillars, and the discharging mechanism includes a shell 28, in which a discharging plate 29 is rotatably connected, and a number of grooves 30 are provided on the discharging plate 29. The shell 28 is respectively connected to the discharge port 8 and the discharge pipe 10, and a through hole is provided on the base plate 6, and the discharge pipe 10 passes through the through hole. A rotating shaft 31 is fixedly connected to the discharging plate 29, and the rotating shaft 31 extends out of the shell 28, and the motor 9 is connected to the rotating shaft 31 in a driving manner.

[0036] The discharge plate 29 rotates in the housing 28 via the rotating shaft 31, and the motor 9 drives the rotating shaft 31 to rotate. When the rotating shaft 31 rotates, it will drive the discharge plate 29 to rotate, and the fertilizer enters the housing 28 through the discharge port 8, and then enters the groove 30, and will rotate with the discharge plate 29. When it turns to the side of the discharge pipe 10, it will enter the discharge pipe 10 due to gravity.

[0037] According to a further optimized solution, a first pulley 32 is fixedly connected to the output end of the motor 9, a second pulley is fixedly connected to the rotating shaft 31, the first pulley 32 and the second pulley are connected via a belt 33, and the housing 28 and the base plate 6 are fixedly connected via a support rod.

[0038] The motor 9 drives the first pulley 32 to rotate, the first pulley 32 drives the second pulley (not shown) to rotate through the belt 33, and the second pulley (not shown) drives the rotating shaft 31 to rotate.

[0039] A further optimized solution is that a plurality of fifth connecting rods 34 are fixedly connected to the reinforcing beam 13, the disc knife 4 is rotatably connected to the fifth connecting rod 34, a plurality of sixth connecting rods 35 are fixedly connected to the mounting frame 1, the sixth connecting rod 35 is rotatably connected to a roller 36, a seventh connecting rod 37 is rotatably connected to the mounting frame 1, a fixing ring is fixedly connected to the seventh connecting rod 37, and the battery 40 is electrically connected to the motor 9.

[0040] The fifth connecting rod 34 is used to install the disc knife 4, the sixth connecting rod 35 is used to install the roller 36, and the roller 36 can support the device to ensure that the plowing depth does not change too much. The fixing ring on the seventh connecting rod 37 is used to connect agricultural power equipment, and the battery 40 supplies power to the motor 9.

[0041] According to a further optimized solution, the roller 3 includes a plurality of straight rods 38 and two circular rotating plates 39 . The plurality of straight rods 38 are fixedly connected to the outer edges of the circular rotating plates 39 , and the circular rotating plates 39 are rotatably connected to the fourth connecting rod 19 .

[0042] The straight rod 38 can be made of steel bars, and the straight rod 38 is fixedly connected to the circular rotating plate 39, which can reduce the entanglement of straw or weeds while crushing the soil blocks.

[0043] The working principle of the device is that the device is driven by agricultural power equipment. Before use, the position of the plow shovel 2 is adjusted first, the positioning pin 16 is pulled out, the first connecting rod 11 is moved in the plug tube 12, the first connecting hole 14 is aligned with the different second connecting hole 15, and then the positioning pin 16 is inserted, and the fertilizer is poured into the fertilizer box 5. When plowing the land, the motor 9 is started, and the motor 9 drives the first pulley 32 to rotate. The first pulley 32 drives the second pulley (not shown in the figure) to rotate through the belt 33, and the second pulley (not shown in the figure) drives the rotating shaft 31 to rotate. When the rotating shaft 31 rotates, it will drive the discharge plate 29 to rotate, and the fertilizer will enter the shell 28 through the discharge port 8, and then enter the groove 30, and will rotate with the discharge plate 29. When it turns to the side of the discharge pipe 10, it will enter the discharge pipe 10 due to gravity. When the plow 2 plows the land, the fertilizer will fall on the plowed position, so that the fertilizer is deep in the soil. The roller 3 is used to roll the turned-up soil blocks, mainly to break the soil blocks. The spring 24 can keep the second connecting rod 17 and the third connecting rod 18 in an outward state, so that the roller 3 maintains a certain pressure on the soil blocks.

[0044] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A deep tillage and fertilization machine, characterized in that: include: A deep tillage assembly, the deep tillage assembly comprising a mounting frame (1), the mounting frame (1) being provided with a plowing mechanism and a pressing mechanism, the plowing mechanism being provided with a plow shovel (2), the pressing mechanism comprising a roller (3), both ends of the roller (3) being rotatably connected with an elastic connecting mechanism, the roller (3) being movably connected to the mounting frame (1) via the elastic connecting mechanism, and the mounting frame (1) being provided with a disc knife (4); A fertilization assembly, the fertilization assembly comprising a fertilizer box (5), the fertilizer box (5) being arranged on a bottom plate (6), the bottom plate (6) being fixedly connected to the mounting frame (1), the fertilizer box (5) being provided with a feed inlet (7) and a discharge outlet (8), the discharge outlet (8) being provided with a discharge mechanism, the discharge mechanism being transmission-connected to a motor (9), the motor (9) being fixedly connected to the bottom plate (6), the discharge mechanism being connected to a discharge pipe (10), the discharge end of the discharge pipe (10) being fixedly connected to the back of the plow shovel (2); The elastic connection mechanism comprises a second connection rod (17), a third connection rod (18) and a fourth connection rod (19); a first connection plate (20) and a second connection plate (21) are fixedly connected to the mounting frame (1); the fourth connection rod (19) is rotatably connected to the second connection plate (21); the roller (3) is rotatably connected to the fourth connection rod (19); the second connection rod (17) is rotatably connected to the first connection plate (20); a cavity (22) and a through hole are provided in the third connection rod (18); The through hole is connected to the cavity (22), the second connecting rod (17) is inserted into the through hole and the cavity (22), a limit block (23) is slidably connected in the cavity (22), the second connecting rod (17) is fixedly connected to the limit block (23), a spring (24) is provided between the second connecting rod (17) and the third connecting rod (18), a third connecting plate (25) is fixedly connected to the fourth connecting rod (19), and the third connecting rod (18) is rotatably connected to the third connecting plate (25); The second connecting rod (17) is fixedly connected to a first baffle (26), the third connecting rod (18) is fixedly connected to a second baffle (27), the spring (24) is sleeved outside the second connecting rod (17) and the third connecting rod (18), one end of the spring (24) abuts against the first baffle (26), and the other end of the spring (24) abuts against the second baffle (27).

2. A deep tillage and fertilization machine according to claim 1, characterized in that: The plowing mechanism comprises a first connecting rod (11) and a plug-in tube (12); a plurality of reinforcing beams (13) are fixedly connected to the mounting frame (1); the first connecting rod (11) is fixedly connected to the reinforcing beam (13); the plug-in tube (12) is fixedly connected to the plowing shovel (2); the first connecting rod (11) is inserted into the plug-in tube (12); a plurality of first connecting holes (14) are formed on the first connecting rod (11); a plurality of second connecting holes (15) are formed on the plug-in tube (12); positioning pins (16) are inserted into the first connecting hole (14) and the second connecting hole (15).

3. A deep tillage and fertilization machine according to claim 1, characterized in that: The fertilizer box (5) is fixedly connected to the base plate (6) by a plurality of pillars. The discharge mechanism comprises a shell (28). A discharge plate (29) is rotatably connected inside the shell (28). The discharge plate (29) is provided with a plurality of grooves (30). The shell (28) is communicated with the discharge port (8) and the discharge pipe (10) respectively. A through hole is provided on the base plate (6). The discharge pipe (10) passes through the through hole. A rotating shaft (31) is fixedly connected to the discharge plate (29). The rotating shaft (31) extends out of the shell (28). The motor (9) is drivingly connected to the rotating shaft (31).

4. A deep tillage and fertilization machine according to claim 3, characterized in that: The output end of the motor (9) is fixedly connected to a first pulley (32), the rotating shaft (31) is fixedly connected to a second pulley, the first pulley (32) and the second pulley are connected by a belt (33), and the housing (28) and the base plate (6) are fixedly connected by a support rod.

5. A deep tillage and fertilization machine according to claim 2, characterized in that: A plurality of fifth connecting rods (34) are fixedly connected to the reinforcing beam (13), the disc knife (4) is rotatably connected to the fifth connecting rod (34), a plurality of sixth connecting rods (35) are fixedly connected to the mounting frame (1), a roller (36) is rotatably connected to the sixth connecting rod (35), a seventh connecting rod (37) is rotatably connected to the mounting frame (1), a fixing ring is fixedly connected to the seventh connecting rod (37), a storage battery (40) is fixedly connected to the base plate (6), and the storage battery (40) is electrically connected to the motor (9).

6. A deep tillage and fertilization machine according to claim 1, characterized in that: The roller (3) comprises a plurality of straight rods (38) and two circular rotating plates (39); the plurality of straight rods (38) are fixedly connected to the outer edges of the circular rotating plates (39); and the circular rotating plates (39) are rotatably connected to the fourth connecting rod (19).

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