Seat of tobacco harvesting machine for manual harvesting and mechanical conveying and harvesting machine for manual harvesting and mechanical conveying

The design of height-adjustable seats solves the harvesting difficulties caused by seat fixation in the prior art, and achieves a more efficient and comfortable harvesting effect.

CN223080567UActive Publication Date: 2025-07-11北京达特集成技术有限责任公司
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Patent Information

Application Number
CN202422372181.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-27
Publication Date
2025-07-11
Estimated Expiration
2034-09-27

AI Technical Summary

Technical Problem

The existing human-picking machine seats are fixed, which are difficult to meet the requirements for tobacco leaf harvesting, resulting in difficulty in harvesting.

Method used

A seat including a seat surface assembly and a lift assembly is designed, and the seat height can be adjusted and fixed by the fitting of the locking member and the limiting hole, ensuring that the seat maintains stability and comfort at multiple heights.

Benefits of technology

It improves the efficiency and comfort of tobacco leaf harvesting, meets the needs of different operators, and reduces labor intensity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of tobacco leaf harvesting, and provides a seat of a tobacco leaf harvesting machine transported by a human harvesting machine and the tobacco leaf harvesting machine transported by the human harvesting machine. The lifting assembly comprises a base bracket, a seat supporting part, a locking part, a pull rod and a supporting rod; the chair surface supporting component is connected with the chair surface assembly, two ends of the pull rod are rotatably connected with one end of the base support and one end of the chair surface supporting component respectively, and two ends of the supporting rod are rotatably connected with the other end of the base support and the other end of the chair surface supporting component respectively; the lock member is provided on the support bar. According to the tobacco leaf harvesting machine seat of the manual harvesting machine, the seat face assembly is arranged on the lifting assembly, the locking component is arranged to adjust the state of the seat face assembly, the height of the seat face assembly can be adjusted according to needs, the height of the seat face assembly can be kept according to needs, and therefore the reasonable height of a station is kept; and the harvesting efficiency of operators is higher.
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Description

Technical Field

[0001] The utility model relates to the field of tobacco leaf harvesting, in particular to a seat for a tobacco leaf harvester with manual picking and mechanical transportation and a tobacco leaf harvester with manual picking and mechanical transportation. Background Art

[0002] With the popularization of tobacco leaf harvesters, tobacco leaf harvesters with manual picking and mechanical transportation will become increasingly popular. The tobacco leaf harvester with manual picking and mechanical transportation carries operators along the tobacco ridges. The operators pick the mature leaves on the passing tobacco plants on both sides and put them into the storage box of the harvester. There are 20 effective leaves on the tobacco plants, which are distributed at a height of 1 - 1.2 meters and mature successively from bottom to top. The full - maturity cycle of all leaves spans 2 months from bottom to top. When 2 to 3 leaves mature each time, the harvester goes to the field for harvesting. In this way of picking the leaves from the bottom to the top multiple times, when the height of the mature leaves picked each time corresponds to the height of the pickers' hands, the picking will be more labor - saving and efficient. However, the existing seats of tobacco leaf harvesters with manual picking and mechanical transportation are fixed, which is difficult to meet the requirements of harvesting and causes difficulties in tobacco leaf harvesting.

[0003] For the convenience of actual harvesting operations, a seat with adjustable height must become a standard configuration. The strength and firmness of the seat need to meet the operating intensity. The better the horizontal stability of the seat in the front - back, left - right directions, the higher the comfort level of the seat. A work - station seat with convenient height adjustment, good strength and good stability is an important component of a tobacco leaf harvester with manual picking and mechanical transportation. Summary of the Utility Model

[0004] The utility model provides a seat for a tobacco leaf harvester with manual picking and mechanical transportation and a tobacco leaf harvester with manual picking and mechanical transportation, so as to solve the problem in the prior art that the seats of tobacco leaf harvesters with manual picking and mechanical transportation are fixed, which is difficult to meet the requirements of harvesting and causes difficulties in tobacco leaf harvesting.

[0005] The utility model provides a seat for a tobacco leaf harvester with manual picking and mechanical transportation, including:

[0006] A seat surface assembly, configured with a support surface for carrying a human body;

[0007] A lifting assembly, including a base bracket, a seat - surface support member, a locking member, a pull rod and a support rod; the seat - surface support member is connected to the seat surface assembly, both ends of the pull rod are rotatably connected to one end of the base bracket and one end of the seat - surface support member respectively, and both ends of the support rod are rotatably connected to the other end of the base bracket and the other end of the seat - surface support member respectively;

[0008] The locking member is arranged on the support rod and has a locked state and an unlocked state. In the locked state, the locking member connects the support rod and the base bracket; in the unlocked state, the locking member is separated from the base bracket.

[0009] According to a seat for a tobacco leaf harvesting machine for manual harvesting and machine transportation provided by the present utility model, the locking component includes: a limiting plate and a limiting member;

[0010] A locking hole is formed on the base bracket, the support rod is rotatably connected to the base bracket, the limiting plate is arranged on the support rod, and a plurality of limiting holes are arranged on the limiting plate;

[0011] During the rotation of the support rod relative to the base bracket, each of the limiting holes corresponds to the locking hole in sequence, and the limiting member is detachably inserted into the locking hole and one of the limiting holes.

[0012] According to the seat for a tobacco leaf harvesting machine for manual harvesting and machine transportation provided by the present utility model, each of the limiting holes is arranged at equal intervals along an arc.

[0013] According to the seat for a tobacco leaf harvesting machine for manual harvesting and machine transportation provided by the present utility model, a first sleeve and a second sleeve are arranged on the seat surface support component;

[0014] A third sleeve and a first rotating shaft are arranged on the base bracket; the upper end of the pull rod is rotatably arranged in the first sleeve through a second rotating shaft, and the lower end of the pull rod is rotatably arranged in the third sleeve through a third rotating shaft; the upper end of the support rod is rotatably arranged in the second sleeve through a fourth rotating shaft, and the lower end of the support rod is sleeved outside the first rotating shaft through a fourth sleeve.

[0015] According to the seat for a tobacco leaf harvesting machine for manual harvesting and machine transportation provided by the present utility model, the center distance between the first sleeve and the second sleeve is equal to the center distance between the third sleeve and the first rotating shaft.

[0016] According to the seat for a tobacco leaf harvesting machine for manual harvesting and machine transportation provided by the present utility model, the center distance between the second rotating shaft and the third rotating shaft is equal to the center distance between the fourth rotating shaft and the fourth sleeve.

[0017] According to the seat for a tobacco leaf harvesting machine for manual harvesting and machine transportation provided by the present utility model, the seat surface support component includes: a seat surface support rod and a seat surface support bracket;

[0018] The seat surface support rod is arranged on the seat surface support bracket, the seat surface support bracket is rotatably connected to the pull rod and the support rod, and the bottom of the seat surface assembly is detachably connected to the seat surface support bracket through the seat surface support rod.

[0019] According to the seat for a tobacco leaf harvesting machine for manual harvesting and machine transportation provided by the present utility model, the seat surface assembly includes: a seat surface and a seat surface support;

[0020] The top of the seat surface is constructed with the support surface, the bottom of the seat surface is connected with the seat surface support, and the seat surface support is detachably connected to the seat surface support rod.

[0021] According to the seat of the manual-harvesting and machine-transporting tobacco leaf harvester provided by the present utility model, the lifting assembly further includes:

[0022] A bottom plate, connected to the base bracket, for supporting on an external structure.

[0023] The present utility model provides a manual-harvesting and machine-transporting harvester, including:

[0024] A harvester main body;

[0025] For the above-mentioned seat of the manual-harvesting and machine-transporting tobacco leaf harvester, the seat of the manual-harvesting and machine-transporting tobacco leaf harvester is detachably arranged on the harvester main body.

[0026] For the seat of the manual-harvesting and machine-transporting tobacco leaf harvester provided by the present utility model, by arranging the seat surface assembly on the lifting assembly and configuring a locking component to adjust its state, the height of the seat surface assembly can be adjusted as needed, and the height of the seat surface assembly can be maintained as needed, so that the working position can be kept at a reasonable height and the operators can have higher harvesting efficiency. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is one of the schematic diagrams of the seat of the manual-harvesting and machine-transporting tobacco leaf harvester provided by the present utility model.

[0029] Figure 2 It is another schematic diagram of the seat of the manual-harvesting and machine-transporting tobacco leaf harvester provided by the present utility model.

[0030] Figure 3 It is the disassembled schematic diagram of the seat of the manual-harvesting and machine-transporting tobacco leaf harvester provided by the present utility model.

[0031] Figure 4 It is the schematic diagram when the seat of the manual-harvesting and machine-transporting tobacco leaf harvester provided by the present utility model is adjusted.

[0032] Figure 5 It is the schematic diagram of the manual-harvesting and machine-transporting harvester provided by the present utility model.

[0033] Reference Signs:

[0034] 1. Seat surface assembly; 11. Seat surface; 12. Seat surface support; 2. Lifting assembly; 21. Base bracket; 211. Locking hole; 212. Third sleeve; 213. First rotating shaft; 22. Seat surface support member; 221. First sleeve; 222. Second sleeve; 223. Seat surface support rod; 23. Limiting member; 24. Pull rod; 241. Second rotating shaft; 242. Third rotating shaft; 25. Support rod; 251. Fourth rotating shaft; 252. Fourth sleeve; 26. Limiting plate; 261. Limiting hole; 27. Bottom plate. Detailed implementation manner

[0035] To make the objectives, technical solutions, and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0036] The following will be combined with Figures 1-5 to describe the seat of the manual harvesting and mechanical transporting tobacco leaf harvester and the manual harvesting and mechanical transporting harvester provided by the present utility model.

[0037] In some embodiments, as Figures 1 to 4 shown, the seat of the manual harvesting and mechanical transporting tobacco leaf harvester includes: a seat surface assembly 1 and a lifting assembly 2. The seat surface assembly 1 is configured with a support surface for carrying a human body; the lifting assembly 2 includes a base bracket 21, a seat surface support member 22, a locking member, a pull rod 24, and a support rod 25; the seat surface support member 22 is connected to the seat surface assembly 1, and both ends of the pull rod 24 are rotatably connected to one end of the base bracket 21 and one end of the seat surface support member 22 respectively, and both ends of the support rod 25 are rotatably connected to the other end of the base bracket 21 and the other end of the seat surface support member 22 respectively; the locking member is disposed on the support rod 25 and is adapted to switch between a locked state and an unlocked state. In the locked state, the locking member connects the support rod 25 and the base bracket 21; in the unlocked state, the locking member is separated from the base bracket 21.

[0038] In this embodiment, the seat surface assembly 1 is the supporting surface for bearing the human body weight. When designing, ergonomics needs to be considered to ensure comfort even during long-term sitting and reduce fatigue. The material of the seat surface assembly 1 may be made of wear-resistant, anti-slip, and easy-to-clean materials (such as plastic) to adapt to the special environment of agricultural operations. The base bracket 21 is the foundation of the entire lifting system. The base bracket 21 needs to be stable and reliable to support the weight of the entire seat and the occupant. It may be designed as a metal frame with reinforcing ribs or special structures to improve the load-bearing capacity and stability. The seat surface support member 22 is connected to the seat surface assembly 1 and moves up and down with the movement of the lifting system. The pull rod 24 and the support rod 25 are connected to the base bracket 21 and the seat surface support member 22 through a rotatable connection method (such as a hinge) to form a four-bar linkage mechanism. This design makes the lifting process of the seat smooth and can maintain the relative stability of the seat surface assembly 1 during the lifting process. The locking member The locking member provided on the support rod 25 is the key to adjusting the height of the seat. It can be switched between the locked state and the unlocked state to fix or adjust the height of the seat. In the locked state, the locking member firmly connects the support rod 25 to the base bracket 21 to prevent the seat from accidentally dropping during operation; in the unlocked state, the locking member is separated from the base bracket 21, allowing the height of the seat to be adjusted through the interaction between the pull rod 24 and the support rod 25.

[0039] The seat of the tobacco leaf harvester for human collection and machine transportation provided by the present utility model sets the seat surface assembly 1 on the lifting assembly 2 and configures a locking member to adjust its state, so that the height of the seat surface assembly 1 can be adjusted as needed and the height of the seat surface assembly 1 can be maintained as needed, thereby keeping the working position at a reasonable height and enabling the operator to have higher harvesting efficiency.

[0040] In some embodiments, as Figures 1 to 4 shown, the locking member includes: a limit plate 26 (crescent plate) and a limit member 23 (bolt). A locking hole 211 is formed on the base bracket 21. The support rod 25 is rotatably connected to the base bracket 21. The limit plate 26 is arranged on the support rod 25, and a plurality of limit holes 261 are provided on the limit plate 26; during the rotation of the support rod 25 relative to the base bracket 21, each limit hole 261 corresponds to the locking hole 211 in sequence, and the limit member 23 is detachably inserted into the locking hole 211 and one of the limit holes 261, so that the limit member 23 can cooperate to complete the fixation at different heights.

[0041] Among them, the limiting plate 26 can be a crescent plate, which is fixed on the support rod 25 and moves together with the support rod 25. A plurality of limiting holes 261 are provided on the limiting plate 26, and these limiting holes 261 are used to match the locking holes 211 on the base bracket 21. The number and position of the limiting holes 261 determine the height gears that the seat can be adjusted to. By carefully designing the position of the limiting holes 261, it can be ensured that the seat remains stable at multiple heights and meets the different needs of the operators. The limiting member 23 can be a bolt, which is detachably inserted into the locking hole 211 and the limiting hole 261. When the seat height needs to be adjusted, the operator can pull out the limiting member 23 from the current limiting hole 261 and locking hole 211, then rotate the support rod 25 to adjust the seat height until the limiting hole 261 corresponding to the satisfactory height aligns with the locking hole 211, and then insert the limiting member 23 to fix the seat.

[0042] When the seat height needs to be adjusted, first ensure that the locking component is in the unlocked state, that is, the limiting member 23 has been pulled out from the locking hole 211 and the limiting hole 261. Then, by pulling or pushing the pull rod 24, the relative angle between the support rod 25 and the base bracket 21 is changed, so as to adjust the height of the seat. During the adjustment process, the support rod 25 will drive the limiting plate 26 to move together, so that different limiting holes 261 correspond to the locking holes 211 on the base bracket 21 in sequence. When the appropriate height is found, insert the limiting member 23 into the current corresponding limiting hole 261 and locking hole 211 to complete the fixing of the seat height.

[0043] Generally, the limiting holes 261 are arranged equidistantly along an arc. Since the limiting holes 261 are arranged equidistantly along an arc, each time the seat height is adjusted, the amount of rise or fall of the seat is fixed. This helps the operator accurately find the height gear that is most suitable for their own height or work needs, improving work efficiency and comfort. The equidistantly arranged limiting holes 261 mean that the height adjustment range of the seat is evenly divided into multiple gears. This balanced distribution not only makes the interval between each gear the same, but also makes the entire adjustment range more reasonable and practical.

[0044] In some embodiments, as Figures 1 to 4 shown, a first sleeve 221 and a second sleeve 222 are provided on the seat surface support member 22; a third sleeve 212 and a first rotating shaft 213 are provided on the base bracket 21; the upper end of the pull rod 24 is rotatably arranged in the first sleeve 221 through a second rotating shaft 241, and the lower end of the pull rod 24 is rotatably arranged in the third sleeve 212 through a third rotating shaft 242; the upper end of the support rod 25 is rotatably arranged in the second sleeve 222 through a fourth rotating shaft 251, and the lower end of the support rod 25 is sleeved outside the first rotating shaft 213 through a fourth sleeve 252.

[0045] Specifically, the first sleeve 221 is a fixed point on the seat surface support member 22 for installing the upper end of the pull rod 24. The second sleeve 222 is also located on the seat surface support member 22 for installing the upper end of the support rod 25. The second sleeve 222 works in cooperation with the first sleeve 221 to jointly support the weight of the seat surface 11 and achieve the adjustment of the seat height through the rotational connection with the support rod 25. The third sleeve 212 is provided on the base bracket 21 and is the installation point for the lower end of the pull rod 24. The first rotating shaft 213 is also a part of the base bracket 21 and is used to support the lower end of the support rod 25. The first rotating shaft 213 is usually a solid axis and is connected to the lower end of the support rod 25 through the fourth sleeve 252 to ensure that the support rod 25 can rotate around it. The pull rod 24 is connected to the first sleeve 221 and the third sleeve 212 through the second rotating shaft 241 at its upper end and the third rotating shaft 242 at its lower end respectively. When the pull rod 24 is pulled or pushed, it transmits force through these two rotating shafts, causing the support rod 25 to rotate relative to the base bracket 21, thereby changing the height of the seat. The support rod 25 is the main component for supporting the weight of the seat surface 11. Its upper end is rotatably arranged in the second sleeve 222 through the fourth rotating shaft 251, and the lower end is sleeved outside the first rotating shaft 213 through the fourth sleeve 252. This design allows the support rod 25 to rotate around the first rotating shaft 213 when subjected to the pulling or pushing force of the pull rod 24, thereby realizing the lifting and lowering of the seat.

[0046] When the seat height needs to be adjusted, the user pulls or pushes the pull rod 24. This action is transmitted to the seat surface support member 22 and the base bracket 21 through the upper end and the lower end of the pull rod 24 respectively. Since the pull rod 24 is connected to the support rod 25 through a rotating shaft, the support rod 25 will rotate around the first rotating shaft 213. As the support rod 25 rotates, the height of the seat surface 11 will also change accordingly. When the desired height is reached, the user can release the pull rod 24, and at this time, the seat will remain at the new height due to the action of gravity (if there is a locking component, the height of the seat also needs to be fixed through the locking component).

[0047] In one embodiment, the center distance between the first sleeve 221 and the second sleeve 222 is equal to the center distance between the third sleeve 212 and the first rotating shaft 213.

[0048] Since the center distance between the first sleeve 221 and the second sleeve 222 is equal to the center distance between the third sleeve 212 and the first rotating shaft 213, when the pull rod 24 is pulled or pushed, the force received by the seat surface support member 22 will be evenly transmitted to the support rod 25, enabling the support rod 25 to rotate smoothly, thereby changing the height of the seat. This balanced design reduces the lateral force during the lifting and lowering process, helps to extend the service life of mechanical components, and improves the overall stability.

[0049] Accordingly, the center distance between the second rotating shaft 241 and the third rotating shaft 242 is equal to the center distance between the fourth rotating shaft 251 and the fourth sleeve 252. The center distance between the second rotating shaft 241 and the third rotating shaft 242 represents the distance between the turning points at both ends of the pull rod 24, while the center distance between the fourth rotating shaft 251 and the fourth sleeve 252 represents the distance between the connection points of the support rod 25 and the base bracket 21. When these two distances are equal, the torque generated by the pull rod 24 when pulling or pushing the support rod 25 will be more uniform, which helps to reduce friction and wear between mechanical components. In addition, this balanced design also makes the seat more smooth during the lifting process, reducing jamming or shaking phenomena caused by torque imbalance. This dual balanced design not only improves the smoothness and stability of the seat lifting, but also extends the service life of mechanical components.

[0050] In some embodiments, such as Figures 1 to 4 shown, the seat surface support member 22 includes: a seat surface support rod 223 and a seat surface 11 bracket; the seat surface support rod 223 is disposed on the seat surface 11 bracket, and the seat surface 11 bracket is rotatably connected to the pull rod 24 and the support rod 25. The bottom of the seat surface assembly 1 is detachably connected to the seat surface 11 bracket through the seat surface support rod 223.

[0051] The seat surface support rod 223 is generally designed to be strong enough to support the seat surface assembly 1 and the weight carried thereon, while maintaining sufficient flexibility to adapt to the position change of the seat surface assembly 1 during the lifting process. The seat surface support rod 223 may be made of metal or other high-strength materials to ensure its durability and load-bearing capacity. The seat surface 11 bracket is the main structure of the seat surface support member 22, and it is responsible for connecting the seat surface assembly 1 to the pull rod 24 and the support rod 25. The seat surface 11 bracket is equipped with appropriate bearings or hinges to enable rotatable connection with the pull rod 24 and the support rod 25. This design allows the seat surface assembly 1 to rotate around a specific axis during the lifting process, thereby achieving height adjustment. The bottom of the seat surface assembly 1 is detachably connected to the seat surface 11 bracket through the seat surface support rod 223. When the seat surface assembly 1 needs to be cleaned or replaced, the user can easily detach it from the seat surface 11 bracket without disassembling the entire seat lifting mechanism.

[0052] In a specific embodiment, such as Figures 1 to 4 shown, the seat surface assembly 1 includes: a seat surface 11 and a seat surface 11 support; the top of the seat surface 11 is constructed with the support surface, the bottom of the seat surface 11 is connected with the seat surface 11 support, and the seat surface 11 support is detachably connected to the seat surface support rod 223.

[0053] Specifically, the seat surface 11 is the part where the user directly sits and leans on. Its top is constructed with a support surface for providing comfortable sitting posture support. The design of the support surface usually takes into account ergonomic principles to ensure sufficient support and comfort in different sitting postures. The seat surface 11 may be made of various materials such as cloth, leather, mesh, etc. to meet different usage environments and aesthetic requirements. The seat surface support is usually located at the bottom of the seat surface 11 and is detachably connected to the seat surface support rod 223. The design of the seat surface support should ensure its firm and reliable connection with the seat surface 11 to withstand various movements and forces of the user during use. The detachable connection between the seat surface support and the seat surface support rod 223 is usually achieved through bolts, buckles or other quick connection devices, enabling the user to easily complete the replacement or repair of the seat surface 11 without the aid of professional tools.

[0054] In addition, as Figures 1 to 4 shown, the lifting assembly 2 further includes: a bottom plate 27, connected to the base bracket 21, for supporting on an external structure. The main function of the bottom plate 27 is to provide a stable support surface to ensure that the seat lifting mechanism does not shake or tilt due to weight or external forces during use. It evenly distributes the weight of the seat and its user through contact with the external structure, maintaining the stability of the overall structure. The bottom plate 27 serves as a connection bridge between the base bracket 21 and the external structure, achieving a close combination of the seat lifting mechanism and the external environment. It ensures that the seat can be firmly installed in the designated position and meets the user's requirements for seat stability and safety. The bottom plate 27 also plays a role in protecting the base bracket 21. Since the base bracket 21 usually contains many precision mechanical components and connection points, direct contact with the external structure may cause wear, corrosion or damage. The addition of the bottom plate 27 can reduce the impact of these adverse factors on the base bracket 21 and extend its service life.

[0055] The embodiment of the present utility model also provides a human-harvesting and machine-transporting harvester, as Figures 1 to 5As shown, it includes the main body of the harvesting machine and the seat of the manual tobacco leaf harvesting machine. The seat of the manual tobacco leaf harvesting machine is detachably arranged on the main body of the harvesting machine. The seat of the manual tobacco leaf harvesting machine includes: a seat surface assembly 1 and a lifting assembly 2. The seat surface assembly 1 is configured with a support surface for carrying the human body; the lifting assembly 2 includes a base bracket 21, a seat surface support member 22, a locking member, a pull rod 24 and a support rod 25; the seat surface support member 22 is connected to the seat surface assembly 1, and both ends of the pull rod 24 are rotatably connected to one end of the base bracket 21 and one end of the seat surface support member 22 respectively, and both ends of the support rod 25 are rotatably connected to the other end of the base bracket 21 and the other end of the seat surface support member 22 respectively; the locking member is arranged on the support rod 25 and is adapted to switch between a locked state and an unlocked state. In the locked state, the locking member connects the support rod 25 and the base bracket 21; in the unlocked state, the locking member is separated from the base bracket 21.

[0056] Generally, the bottom plate 27 can be installed on the main body (frame) of the harvesting machine by welding or bolting. According to the height of the tobacco leaves in each harvesting batch, the height of the seat of the manual tobacco leaf harvesting machine is adjusted accordingly. Remove the bolts of the semi-moon plate, change the inclination angles of the support rod 25 and the pull rod 24, increase or decrease the vertical distance to the ground as the angle changes, adjust to a satisfactory vertical distance, and then fix the semi-moon plate with bolts to complete the height adjustment of the seat surface 11, so as to keep the working position at a reasonable height and enable the operators to have higher harvesting efficiency.

[0057] For the manual tobacco leaf harvesting machine provided by the present utility model, due to the above-mentioned seat of the manual tobacco leaf harvesting machine, the height of the seat surface assembly 1 can be adjusted as needed and can be maintained as needed, so as to keep the working position at a reasonable height and enable the operators to have higher harvesting efficiency.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A seat for a tobacco harvesting machine transported by a human, characterized in that, Comprising: A seat surface assembly configured with a support surface for carrying a human body; A lifting assembly including a base bracket, a seat surface support member, a locking member, a pull rod, and a support rod; the seat surface support member is connected to the seat surface assembly, two ends of the pull rod are respectively rotatably connected to one end of the base bracket and one end of the seat surface support member, and two ends of the support rod are respectively rotatably connected to the other end of the base bracket and the other end of the seat surface support member; The locking member is disposed on the support rod and is adapted to switch between a locked state and an unlocked state. In the locked state, the locking member connects the support rod and the base bracket; In the unlocked state, the locking member is separated from the base bracket.

2. The seat of the human-operated tobacco harvesting machine according to claim 1, characterized in that, The locking member includes: a limit plate and a limiting member; A locking hole is formed on the base bracket, the support rod is rotatably connected to the base bracket, the limit plate is disposed on the support rod, and a plurality of limit holes are formed on the limit plate; During the rotation of the support rod relative to the base bracket, each of the limit holes corresponds to the locking hole in sequence, and the limiting member is detachably inserted into the locking hole and one of the limit holes.

3. The seat of the human-operated tobacco leaf harvester according to claim 2, characterized in that, Each of the limit holes is arranged equidistantly along an arc.

4. The seat of the human-operated tobacco leaf harvester according to claim 1, characterized in that, The seat surface support member is provided with a first sleeve and a second sleeve; The base bracket is provided with a third sleeve and a first rotating shaft; the upper end of the pull rod is rotatably disposed in the first sleeve through a second rotating shaft, and the lower end of the pull rod is rotatably disposed in the third sleeve through a third rotating shaft; the upper end of the support rod is rotatably disposed in the second sleeve through a fourth rotating shaft, and the lower end of the support rod is sleeved outside the first rotating shaft through a fourth sleeve.

5. The seat of the human-operated tobacco leaf harvester according to claim 4, wherein, The center distance between the first sleeve and the second sleeve is equal to the center distance between the third sleeve and the first rotating shaft.

6. The seat of the human-operated tobacco leaf harvester according to claim 4, characterized in that, The center distance between the second rotating shaft and the third rotating shaft is equal to the center distance between the fourth rotating shaft and the fourth sleeve.

7. The seat of the tobacco leaf harvesting machine for human and machine operation according to claim 1, characterized in that, The seat surface support member includes: a seat surface support rod and a seat surface bracket; The seat surface support rod is disposed on the seat surface bracket, the seat surface bracket is rotatably connected to the pull rod and the support rod, and the bottom of the seat surface assembly is detachably connected to the seat surface bracket through the seat surface support rod.

8. The seat of the human-operated tobacco leaf harvester according to claim 7, characterized in that, The seat surface assembly includes: a seat surface and a seat surface support; The top of the seat surface is configured with the support surface, the bottom of the seat surface is connected with the seat surface support, and the seat surface support is detachably connected to the seat surface support rod.

9. The seat of the human-operated tobacco harvesting machine according to claim 1, characterized in that, The lifting assembly further includes: A bottom plate connected to the base bracket for supporting on an external structure.

10. A human-operated harvesting machine, characterized in that, Comprising: A harvester main body; The tobacco leaf harvester seat for human harvester as described in any one of claims 1-9, and the tobacco leaf harvester seat for human harvester is detachably disposed on the harvester main body.