Waste treatment device

Abstract

The utility model relates to the technical field of mobile phone waste treatment, in particular to a waste treatment device. The device comprises a crushing barrel, a lifting structure is arranged on one side of the crushing barrel, an upper cover is slidably connected to the top of the crushing barrel, one side of the lifting structure is fixed to the upper cover, a speed regulating structure is arranged on one side of the top of the upper cover, and a cutting structure is arranged at the bottom of the speed regulating structure. According to the waste treatment device provided by the utility model, through the design of the lifting structure, the upper cover of the device can be conveniently lifted and lowered, so that a mobile phone film can be conveniently put into the crushing barrel, and a user can conveniently treat the mobile phone film; according to the device, through the design of a speed adjusting structure and a cutting structure, the working efficiency is further improved, the mobile phone film is possibly made of various materials, the hardness and the toughness of the mobile phone film are different, the cutting speed can be adjusted according to the characteristics of the different materials through the cutting structure facilitating speed adjustment, and the accuracy and the high efficiency of the cutting process are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone waste treatment, in particular to a waste treatment device. Background Art

[0002] With the widespread popularity of smart phones, mobile phone films, as an important accessory to protect mobile phone screens, have seen a growing market demand year by year. However, this has also led to the generation of a large number of waste mobile phone films. At present, waste mobile phone films are mostly disposed of by landfill or incineration, which is not only inefficient but also causes serious environmental pollution. Landfilling will occupy a large amount of land resources, and the harmful substances in the mobile phone films may seep into the soil and pollute groundwater; while incineration will produce a large amount of harmful gases and solid waste, posing a threat to air quality and the ecological environment.

[0003] In view of the above problems, it is particularly important to develop an efficient and environmentally friendly mobile phone film waste treatment device. This device needs to be able to effectively separate different materials in the mobile phone film, such as plastic, adhesive layer, etc., so as to carry out targeted recycling. At the same time, the treatment process should reduce the emission of pollutants as much as possible to achieve harmless and resourceful treatment of waste.

[0004] At present, some research institutions and enterprises have begun to pay attention to the research and development of mobile phone film waste treatment technology. They have carried out preliminary treatment and recycling of mobile phone film waste by adopting various methods such as physical crushing, chemical decomposition, and biodegradation. However, most of these technologies have problems such as low treatment efficiency, high energy consumption, and high cost, which are difficult to meet the needs of large-scale applications.

[0005] Therefore, developing a new type of mobile phone film waste treatment device not only has important environmental significance, but also has broad market prospects. This device should have the characteristics of high efficiency, environmental protection, and intelligence, and can achieve efficient treatment and recycling of waste mobile phone films, providing new ideas and methods for solving the problem of mobile phone film waste treatment.

[0006] For example, a Chinese utility model patent (CN112157116A) discloses a device and method for treating protective films of used mobile phones, which solves the following problem: some traditional devices do not perform deep treatment on the waste liquid generated, which may cause the disadvantage of secondary pollution.

[0007] The device includes a cleaning machine, a wastewater sedimentation tank, a degumming machine and a glue liquid separation tank. The recycled waste protective film is cleaned by the cleaning machine, and the protective film with high density after removing the scum is dried and enters the degumming machine; in the degumming machine, the degumming agent is used to make the glue layer wrinkled and cracked, and fall off from the protective film; the degummed protective film is recycled, and the mixed glue liquid after degumming enters the glue liquid separation tank to separate and recycle sodium hydroxide, polyacrylate and sodium polyacrylate. The invention has low infrastructure investment, small footprint, simple structure, low manufacturing cost, simple operation, convenient maintenance, zero wastewater discharge, and no secondary pollution.

[0008] When using the above technology, it was found that the following technical problems exist in the prior art: the crushing structure of the device cannot adjust the speed, and thus the cutting speed cannot be adjusted according to the specific situation. For this reason, we designed a waste processing device to provide another technical solution to the above technical problems. Utility Model Content

[0009] Based on this, it is necessary to provide a waste treatment device to address the above technical issues and solve the problems raised in the above background technology.

[0010] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0011] A waste processing device comprises a crushing barrel, a lifting structure is arranged on one side of the crushing barrel, an upper cover is slidably connected to the top of the crushing barrel, one side of the lifting structure is fixed to the upper cover, a speed regulating structure is arranged on one side of the top of the upper cover, and a cutting structure is arranged at the bottom of the speed regulating structure.

[0012] As a preferred embodiment of the waste processing device provided by the utility model, the lifting structure includes a connecting block, a hydraulic cylinder and a positioning block, a connecting block is fixed at the bottom of one side of the crushing barrel, a hydraulic cylinder is fixed on the top of the connecting block, a positioning block is fixed at the output end of the hydraulic cylinder, and one side of the positioning block is fixed to the upper cover.

[0013] As a preferred implementation of the waste treatment device provided by the utility model, the speed regulation structure includes a regulating mechanism and a connecting mechanism.

[0014] As a preferred embodiment of the waste treatment device provided by the utility model, the adjustment mechanism includes a fixed block, a first motor, a worm, a worm wheel and a rotating shaft, two fixed blocks are fixed to one side of the top of the upper cover, and the sides of the two fixed blocks close to each other are rotatably connected to the worm, one side of one of the fixed blocks is fixed to the first motor, one side of the top of the upper cover is rotatably connected to the rotating shaft, a worm wheel is fixed to the bottom outside the rotating shaft, and the worm wheel and the worm are meshingly connected.

[0015] As a preferred embodiment of the waste treatment device provided by the utility model, the adjustment mechanism also includes a limit block, a screw, a lifting block, a mounting plate and a sliding rod, two limit blocks are fixed on the top of the rotating shaft, a screw is fixed on the side where the two limit blocks are close to each other, a sliding rod is fixed on one side of the top of the upper cover, the outer side of the screw is threadedly connected to the lifting block, the lifting block and the sliding rod are slidably connected, and a mounting plate is fixed on one side of the lifting block.

[0016] As a preferred embodiment of the waste treatment device provided by the utility model, the connecting mechanism includes a connecting sleeve, a second motor, a rotating rod, a first gear and a second gear, a connecting sleeve is fixed to one side of the top of the upper cover, the top of the connecting sleeve is slidably connected to the rotating rod, the second motor is fixed to the bottom of the mounting plate, the output end of the second motor is fixed to the rotating rod, the first gear is fixed to the upper end of the outer side of the rotating rod, and the second gear is fixed to the lower end of the outer side of the rotating rod.

[0017] As a preferred embodiment of the waste processing device provided by the utility model, the cutting structure includes a third gear, a fourth gear, a first rotating column, a second rotating column, a crushing knife, a first bevel gear, a second bevel gear, a third bevel gear and a connecting plate, the inner side of the upper cover is rotatably connected to the first rotating column, the top of the first rotating column is fixed with a fourth gear, the upper end of the outer side of the first rotating column is fixed with a third gear, the middle part of the outer side of the first rotating column is rotatably connected to the second rotating column, the outer ends of the first rotating column and the second rotating column are both fixed with multiple crushing knives, one end of the bottom of the upper cover is fixed with a connecting plate, one side of the connecting plate is rotatably connected to the third bevel gear, the outer side of the first rotating column is fixed with a first bevel gear, the upper end of the outer side of the second rotating column is fixed with a second bevel gear, and the first bevel gear and the second bevel gear are both meshingly connected with the third bevel gear.

[0018] As a preferred implementation of the waste treatment device provided by the utility model, the radius of the second gear is the same as the radius of the fourth gear, and the radius of the first gear is the same as the radius of the third gear.

[0019] As a preferred implementation of the waste treatment device provided by the utility model, the third gear is meshed and connected with the second gear, and the fourth gear is meshed and connected with the first gear.

[0020] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0021] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0022] The utility model provides a waste treatment device, which can conveniently raise and lower the upper cover through the design of the lifting structure, so as to facilitate the mobile phone film to be placed in the crushing barrel, and then facilitate the user to handle;

[0023] The device further improves work efficiency through the design of speed regulation structure and cutting structure. Since the mobile phone film may be made of a variety of materials with different hardness and toughness, the cutting structure with convenient speed regulation can adjust the cutting speed according to the characteristics of different materials to ensure the accuracy and efficiency of the cutting process. The appropriate cutting speed is crucial to ensuring the cutting quality. Too fast cutting speed may cause uneven cutting or material tearing, while too slow cutting speed may cause material waste or excessive wear of the machine. By adjusting the cutting speed, the cutting efficiency can be improved while ensuring the cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a schematic diagram of the overall structure of a waste treatment device of the utility model;

[0026] Figure 2 This is a diagram showing the lifting of the upper cover of a waste treatment device according to the utility model;

[0027] Figure 3 This is a schematic diagram of the connection between a positioning block and an upper cover of a waste treatment device of the utility model;

[0028] Figure 4 This is a schematic diagram of the connection between a screw rod and a lifting block of a waste treatment device of the utility model;

[0029] Figure 5 This is a schematic diagram of the connection between a rotating rod and a first gear of a waste treatment device of the utility model;

[0030] Figure 6 This is a schematic diagram of the connection between the second gear and the third gear of a waste treatment device of the utility model;

[0031] Figure 7 This is a schematic diagram of the connection between the second rotating column and the crushing knife of a waste processing device of the utility model.

[0032] In the figure: 1. crushing barrel; 2. connecting block; 3. hydraulic cylinder; 4. positioning block; 5. upper cover; 6. connecting sleeve; 7. fixing block; 8. first motor; 9. worm; 10. worm wheel; 11. rotating shaft; 12. limiting block; 13. screw; 14. lifting block; 15. mounting plate; 16. sliding rod; 17. second motor; 18. rotating rod; 19. first gear; 20. second gear; 21. third gear; 22. fourth gear; 23. first rotating column; 24. second rotating column; 25. crushing knife; 26. first bevel gear; 27. second bevel gear; 28. third bevel gear; 29. ​​connecting plate. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0034] As described in the background art, the crushing structure of the device cannot be speed-regulated, and thus the cutting speed cannot be adjusted according to specific circumstances.

[0035] In order to solve this technical problem, the utility model provides a waste processing device.

[0036] Specifically, please refer to Figure 1-Figure 7 A waste processing device specifically includes: a crushing barrel 1, a lifting structure is arranged on one side of the crushing barrel 1, an upper cover 5 is slidably connected to the top of the crushing barrel 1, one side of the lifting structure is fixed to the upper cover 5, a speed regulating structure is arranged on one side of the top of the upper cover 5, and a cutting structure is arranged at the bottom of the speed regulating structure.

[0037] The utility model provides a waste treatment device, which can conveniently raise and lower the upper cover 5 through the design of the lifting structure, so as to facilitate the mobile phone film to be placed in the crushing barrel 1, so as to facilitate the user to handle;

[0038] The device further improves work efficiency through the design of speed regulation structure and cutting structure. Since the mobile phone film may be made of a variety of materials with different hardness and toughness, the cutting structure with convenient speed regulation can adjust the cutting speed according to the characteristics of different materials to ensure the accuracy and efficiency of the cutting process. The appropriate cutting speed is crucial to ensuring the cutting quality. Too fast cutting speed may cause uneven cutting or material tearing, while too slow cutting speed may cause material waste or excessive wear of the machine. By adjusting the cutting speed, the cutting efficiency can be improved while ensuring the cutting quality.

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] Reference Figure 1-Figure 7 A waste processing device includes a crushing barrel 1, a lifting structure is arranged on one side of the crushing barrel 1, an upper cover 5 is slidably connected to the top of the crushing barrel 1, one side of the lifting structure is fixed to the upper cover 5, a speed regulating structure is arranged on one side of the top of the upper cover 5, and a cutting structure is arranged at the bottom of the speed regulating structure.

[0042] The lifting structure includes a connecting block 2, a hydraulic cylinder 3 and a positioning block 4. The connecting block 2 is fixed to the bottom of one side of the crushing barrel 1, the hydraulic cylinder 3 is fixed to the top of the connecting block 2, the positioning block 4 is fixed to the output end of the hydraulic cylinder 3, and one side of the positioning block 4 is fixed to the upper cover 5, so that the lifting structure can drive the upper cover 5 to rise and fall.

[0043] The speed regulating structure includes an adjusting mechanism and a connecting mechanism. The adjusting mechanism includes a fixed block 7, a first motor 8, a worm 9, a worm wheel 10, a rotating shaft 11, a limit block 12, a screw 13, a lifting block 14, a mounting plate 15 and a slide rod 16. Two fixed blocks 7 are fixed on one side of the top of the upper cover 5, and the worm 9 is rotatably connected to the side where the two fixed blocks 7 are close to each other. The first motor 8 is fixed on one side of one of the fixed blocks 7, and the rotating shaft 11 is rotatably connected to one side of the top of the upper cover 5. A worm wheel 10 is fixed to the bottom of the outer side of the rotating shaft 11, and the worm wheel 10 and the worm 9 are meshingly connected. Two limit blocks 12 are fixed on the top of the rotating shaft 11, and a screw 13 is fixed on the side where the two limit blocks 12 are close to each other. A slide rod 16 is fixed on one side of the top of the upper cover 5, and the lifting block 14 is threadedly connected to the outer side of the screw 13. The lifting block 14 and the slide rod 16 are slidably connected, and a mounting plate 15 is fixed on one side of the lifting block 14, so that the adjusting mechanism can drive the mounting plate 15 to rise and fall.

[0044] The connecting mechanism includes a connecting sleeve 6, a second motor 17, a rotating rod 18, a first gear 19 and a second gear 20. The connecting sleeve 6 is fixed to one side of the top of the upper cover 5, and the top of the connecting sleeve 6 is slidably connected to the rotating rod 18. The second motor 17 is fixed to the bottom of the mounting plate 15, and the output end of the second motor 17 is fixed to the rotating rod 18. The first gear 19 is fixed to the upper end of the outer side of the rotating rod 18, and the second gear 20 is fixed to the lower end of the outer side of the rotating rod 18, so that the connecting mechanism can perform power transmission.

[0045] The cutting structure includes a third gear 21, a fourth gear 22, a first rotating column 23, a second rotating column 24, a crushing knife 25, a first bevel gear 26, a second bevel gear 27, a third bevel gear 28 and a connecting plate 29. The inner side of the upper cover 5 is rotatably connected to the first rotating column 23, the top of the first rotating column 23 is fixed with the fourth gear 22, the upper end of the outer side of the first rotating column 23 is fixed with the third gear 21, the middle part of the outer side of the first rotating column 23 is rotatably connected to the second rotating column 24, and the outer ends of the first rotating column 23 and the second rotating column 24 are both fixed with a plurality of crushing knives 25, a connecting plate 29 is fixed at one end of the bottom of the upper cover 5, and one side of the connecting plate 29 is rotatably connected to the third bevel gear 28, the outer side of the first rotating column 23 is fixed with the first bevel gear 26, and the upper end of the outer side of the second rotating column 24 is fixed with the second bevel gear 27, and the first bevel gear 26 and the second bevel gear 27 are both meshed and connected with the third bevel gear 28, so that the cutting structure can cut the mobile phone film.

[0046] The radius of the second gear 20 is the same as that of the fourth gear 22, the radius of the first gear 19 is the same as that of the third gear 21, the third gear 21 is meshed with the second gear 20, and the fourth gear 22 is meshed with the first gear 19, so that the rotation of the output end of the second motor 17 can drive the first rotating column 23 to rotate.

[0047] When the third gear 21 and the second gear 20 are meshed and connected, the fourth gear 22 and the first gear 19 are disengaged and connected. When the fourth gear 22 and the first gear 19 are meshed and connected, the third gear 21 and the second gear 20 are disengaged and connected, so that the rotation speed of the first rotating column 23 is adjusted.

[0048] The utility model provides a waste treatment device, which can conveniently raise and lower the upper cover 5 through the design of the lifting structure, so as to facilitate the mobile phone film to be placed in the crushing barrel 1, so as to facilitate the user to handle;

[0049] The device further improves work efficiency through the design of speed regulation structure and cutting structure. Since the mobile phone film may be made of a variety of materials with different hardness and toughness, the cutting structure with convenient speed regulation can adjust the cutting speed according to the characteristics of different materials to ensure the accuracy and efficiency of the cutting process. The appropriate cutting speed is crucial to ensuring the cutting quality. Too fast cutting speed may cause uneven cutting or material tearing, while too slow cutting speed may cause material waste or excessive wear of the machine. By adjusting the cutting speed, the cutting efficiency can be improved while ensuring the cutting quality.

[0050] The use process of a waste treatment device provided by the utility model is as follows: the user energizes the hydraulic cylinder 3, thereby driving the positioning block 4 and the upper cover 5 to rise, making it convenient for the user to pour the mobile phone film into the inner side of the crushing barrel 1, and then lowers the upper cover 5 to completely close the device. The user energizes the second motor 17 to rotate, and the output end of the second motor 17 drives the rotating rod 18 to rotate, and the rotation of the rotating rod 18 drives the second gear 20 to rotate. Since one side of the second gear 20 is meshed and connected with the third gear 21, the rotation of the second gear 20 drives the third gear 21 to rotate, and the rotation of the third gear 21 drives the first rotating column 23 to rotate. The rotation of the first rotating column 23 drives the multiple crushing knives 25 fixed on the outside to rotate, and the rotation of the first rotating column 23 drives the first bevel gear 26 to rotate. Since one side of the first bevel gear 26 is meshedly connected with the third bevel gear 28, and one end of the bottom side of the third bevel gear 28 is meshedly connected with the second bevel gear 27, the rotation of the first bevel gear 26 can drive the third bevel gear 28 to rotate, and then drive the second bevel gear 27 to rotate in the opposite direction, and at the same time drive the second rotating column 24 to rotate in the opposite direction, and then drive the multiple crushing knives 25 on the outside of the second rotating column 24 to rotate in the opposite direction, so that the mobile phone film inside the crushing barrel 1 is completely cut. When speed regulation is required, the user energizes the first motor 8 to rotate, and the output end of the first motor 8 drives the worm 9 to rotate. Since one side of the worm 9 is meshedly connected with the worm wheel 10, the rotation of the worm 9 drives the worm wheel 10 to rotate, and the rotation of the worm wheel 10 drives the rotating shaft 11 to rotate, and then drives the screw 13 to rotate. Since the outer side of the screw 13 is threadedly connected with the lifting block 14, the rotation of the screw 13 drives the lifting block 14 to slide and rise on the outer side of the sliding rod 16, and at the same time drives the mounting plate 15 to rise, and then drives the second motor 17 to rise, so that the second gear 20 is disengaged from the meshing connection with the third gear 21, and at the same time makes The first gear 19 resumes the meshing connection with the fourth gear 22, so that the rotation of the second motor 17 drives the first gear 19 to rotate and drives the fourth gear 22 to rotate. Since the radii of the first gear 19 and the second gear 20 are different, and the radii of the third gear 21 and the fourth gear 22 are different, the rotation speed of the first rotating column 23 changes, and the rotation speed of the multiple crushing knives 25 changes. For operators using the utility model, the cutting structure with convenient speed regulation makes the operation simpler and more intuitive. They can quickly adjust the cutting speed according to actual needs, thereby improving work efficiency and satisfaction.

[0051] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A waste treatment device, comprising a crushing barrel (1), characterized in that: A lifting structure is provided on one side of the crushing barrel (1), an upper cover (5) is slidably connected to the top of the crushing barrel (1), one side of the lifting structure is fixed to the upper cover (5), a speed regulating structure is provided on one side of the top of the upper cover (5), and a cutting structure is provided at the bottom of the speed regulating structure.

2. A waste treatment device according to claim 1, characterized in that: The lifting structure comprises a connecting block (2), a hydraulic cylinder (3) and a positioning block (4); the connecting block (2) is fixed at the bottom of one side of the crushing barrel (1); the hydraulic cylinder (3) is fixed on the top of the connecting block (2); the positioning block (4) is fixed at the output end of the hydraulic cylinder (3); and one side of the positioning block (4) is fixed to an upper cover (5).

3. A waste treatment device according to claim 2, characterized in that: The speed regulating structure comprises a regulating mechanism and a connecting mechanism.

4. A waste treatment device according to claim 3, characterized in that: The adjustment mechanism comprises a fixed block (7), a first motor (8), a worm (9), a worm wheel (10) and a rotating shaft (11); two fixed blocks (7) are fixed on one side of the top of the upper cover (5); the two fixed blocks (7) are rotatably connected to one side of each other; the first motor (8) is fixed on one side of one of the fixed blocks (7); the rotating shaft (11) is rotatably connected to one side of the top of the upper cover (5); a worm wheel (10) is fixed on the bottom of the outer side of the rotating shaft (11); and the worm wheel (10) and the worm (9) are meshingly connected.

5. A waste treatment device according to claim 4, characterized in that: The adjustment mechanism further comprises a limit block (12), a screw rod (13), a lifting block (14), a mounting plate (15) and a sliding rod (16); two limit blocks (12) are fixed on the top of the rotating shaft (11); a screw rod (13) is fixed on the side where the two limit blocks (12) are close to each other; a sliding rod (16) is fixed on one side of the top of the upper cover (5); the lifting block (14) is threadedly connected to the outer side of the screw rod (13); the lifting block (14) and the sliding rod (16) are slidably connected; and a mounting plate (15) is fixed on one side of the lifting block (14).

6. A waste treatment device according to claim 5, characterized in that: The connecting mechanism comprises a connecting sleeve (6), a second motor (17), a rotating rod (18), a first gear (19) and a second gear (20); a connecting sleeve (6) is fixed to one side of the top of the upper cover (5); the top of the connecting sleeve (6) is slidably connected to the rotating rod (18); the bottom of the mounting plate (15) is fixed to the second motor (17); the output end of the second motor (17) is fixed to the rotating rod (18); the first gear (19) is fixed to the upper end of the outer side of the rotating rod (18); and the second gear (20) is fixed to the lower end of the outer side of the rotating rod (18).

7. A waste treatment device according to claim 6, characterized in that: The cutting structure comprises a third gear (21), a fourth gear (22), a first rotating column (23), a second rotating column (24), a crushing knife (25), a first bevel gear (26), a second bevel gear (27), a third bevel gear (28) and a connecting plate (29); the inner side of the upper cover (5) is rotatably connected to the first rotating column (23); the top of the first rotating column (23) is fixed with the fourth gear (22); the upper end of the outer side of the first rotating column (23) is fixed with the third gear (21); the middle part of the outer side of the first rotating column (23) is rotatably connected to the A second rotating column (24), a plurality of crushing knives (25) are fixed to the outer ends of the first rotating column (23) and the second rotating column (24), a connecting plate (29) is fixed to one end of the bottom of the upper cover (5), a third bevel gear (28) is rotatably connected to one side of the connecting plate (29), a first bevel gear (26) is fixed to the outer side of the first rotating column (23), a second bevel gear (27) is fixed to the upper end of the outer side of the second rotating column (24), and the first bevel gear (26) and the second bevel gear (27) are both meshingly connected to the third bevel gear (28).

8. A waste treatment device according to claim 7, characterized in that: The radius of the second gear (20) is the same as the radius of the fourth gear (22), and the radius of the first gear (19) is the same as the radius of the third gear (21).

9. A waste treatment device according to claim 7, characterized in that: The third gear (21) is meshedly connected to the second gear (20), and the fourth gear (22) is meshedly connected to the first gear (19).

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