Handheld tea picking machine

Abstract

This invention belongs to the field of tea-picking machine technology, specifically a handheld tea-picking machine, comprising: a base for support and fixation; a reciprocating frame movably connected to one side of the base for cutting tea leaves; a drive unit fixedly connected inside the base for driving the reciprocating frame to move back and forth; and a clamping unit movably connected to one side of the base for mounting on a person's arm and providing cooling and massage; the clamping unit includes a crossbar. This handheld tea-picking machine has high tea-picking efficiency and good tea-picking effect. The tilt angle of the tea-picking machine can be adjusted according to the height of the person or the height of the tea tree to further meet the tea-picking needs of different tea trees, making it more adaptable and stable. Simultaneously, the tea-picking machine continuously vibrates and transmits the vibration to the pressing sleeve, which elastically squeezes against the person's arm, providing pulse cooling and massage, improving handheld comfort. Furthermore, when the tea-picking machine is disengaged, the elastic pressing of the pressing sleeve against the person's arm further protects the person, improving safety and stability.

Description

Technical Field

[0001] This invention belongs to the field of tea-picking machine technology, specifically a handheld tea-picking machine. Background Technology

[0002] Handheld tea-picking machines mainly consist of a body, blades, and batteries. They work by using vibrations in the body or high-speed rotating blades to pick tea leaves. Handheld tea-picking machines use vibrations in the body or high-speed rotating blades to quickly cut or shake off tender tea buds, thus completing the picking process.

[0003] Chinese invention patent CN105960942B discloses a handheld tea-picking machine, including a tea storage tank, a handle fixedly connected to the side wall of the tea storage tank, an upper mounting plate fixedly connected to the upper end of the tea storage tank away from the handle, a lower mounting plate fixedly connected below the upper mounting plate, a tea-picking belt mechanism fixedly installed above the upper mounting plate, a motor installed below the lower mounting plate, a gear set installed between the upper and lower mounting plates, and a blade installed at the front end of the upper mounting plate; the gear set is connected between the motor and the tea-picking belt mechanism; this handheld tea-picking machine has low tea-picking efficiency and poor tea-picking quality.

[0004] During the process described above, when personnel use handheld tea-picking machines to harvest tea leaves, the tilt angle of the machine varies depending on the height of the tea trees or the height of the personnel, which reduces the comfort and accuracy of the personnel holding the machine.

[0005] Furthermore, the tea-picking machine operates continuously and generates vibrations, which are transmitted upwards to the personnel and cause vibration damage to the area between their thumb and forefinger, thereby reducing the stability of the handheld tea-picking machine.

[0006] In existing technologies, clamping parts are often used to improve the clamping stability of tea picking machines. However, since the friction of different people's arms is different, the pressing force required to support the tea picking machine with the clamping parts is different, which can easily cause the clamping parts to slip on the people's arms and reduce the limiting balance effect.

[0007] As tea-picking machines operate for extended periods, workers' arms are prone to soreness. Furthermore, the prolonged pressure and support between the clamping part and the arm, coupled with high temperatures and sweating, reduces the comfort of tea picking.

[0008] If a person is bumped or accidentally loses their grip on the tea-picking machine, the machine will rotate in the opposite direction and fall downwards. Not only will the tea-picking machine fall and damage the tea trees, but it will also collide with the person's hands and cause injury. Summary of the Invention

[0009] To address the above problems, this invention provides a handheld tea-picking machine.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a handheld tea-picking machine, comprising:

[0011] The base is used for support and fixation;

[0012] The reciprocating frame, which is movably connected to one side of the base, is used for cutting tea leaves;

[0013] The drive unit is fixedly connected inside the base and is used to drive the reciprocating frame to move back and forth.

[0014] The clamping part is movably connected to one side of the seat body and is used for mounting to the person's arm and for cooling and massage.

[0015] The clamping part includes a crossbeam, with side plates fixedly connected to both ends of the crossbeam. A pressing sleeve is fixedly connected to the outer surface of the side plate, which elastically presses against the user's arm. An inner support plate is movably connected to the facing end surfaces of the two side plates to adjust the amount of gas inside the pressing sleeve. A pressure sensor is provided at the end of each inner support plate. After the pressing sleeve is rubbed against the user's arm and limited, the pressure value detected by the pressure sensor is the preset pressure value. When the pressure value detected by the pressure sensor is greater than the preset pressure value, the inner support plate moves closer to the end of the crossbeam, and the amount of gas inside the pressing sleeve decreases.

[0016] This handheld tea-picking machine boasts high efficiency and excellent harvesting results. Its tilt angle can be adjusted according to the height of the person using it or the tea tree, further meeting the harvesting needs of different tea trees. This makes it more adaptable and stable. Simultaneously, the continuous vibration of the tea-picking machine is transmitted to the pressing sleeve, which elastically presses against the person's arm, providing pulse cooling and massage, thus improving handheld comfort. Furthermore, when the tea-picking machine is disengaged, the elastic pressing of the pressing sleeve against the person's arm further protects the person, enhancing safety and stability.

[0017] Preferably, the drive unit includes:

[0018] The motor is fixedly connected inside the base and is used to provide driving force;

[0019] The drive tooth is fixedly connected to the output end of the motor, and the driven tooth is connected to the outer surface of the drive tooth.

[0020] An eccentric wheel is movably connected to one side of the driven tooth, and a hinge rod is movably connected to the other end of the eccentric wheel. The other end of the hinge rod is movably connected to the end of the reciprocating frame. The rotation of the driven tooth causes the eccentric wheel to swing eccentrically, and the eccentric wheel drives the reciprocating frame to move back and forth through the hinge rod.

[0021] Preferably, it further includes:

[0022] The base frame is fixedly connected to one side of the base body, and multiple fixing teeth are evenly fixedly connected to one side of the base frame;

[0023] The cutting teeth are fixedly connected to one side of the reciprocating frame. The reciprocating frame moves back and forth, driving multiple cutting teeth to move back and forth. The cutting teeth and fixed teeth mesh with each other to pick tea leaves.

[0024] The collecting hopper is fixedly connected to the top of the base frame and is used to collect tea leaves.

[0025] Preferably, the clamping part further includes:

[0026] The mounting shaft is fixedly connected to both sides of the base. A torsion spring seat is movably connected to the outer surface of the mounting shaft. A rotating sleeve is movably connected to the outer surface of the torsion spring seat. The torsion spring seat has torque and applies a reverse force to the rotating sleeve.

[0027] The movable rod is movably connected inside the rotating sleeve. One end of the movable rod is fixedly connected to the side wall of the rotating sleeve through an elastic element, and the other end is fixedly connected to the side wall of the cross frame. It is used to drive the cross frame to move and rotate.

[0028] Preferably, the clamping part further includes:

[0029] The air vent is located inside the side panel and is used for gas exhaust.

[0030] The mating hole is located inside the inner support plate and matches the air outlet hole, and is used to adjust the overlapping area with the air outlet hole.

[0031] The cooling fan is fixedly connected to one side of the side plate and its output end is connected to the air outlet, which is used to introduce gas into the air outlet.

[0032] Preferably, the clamping part further includes:

[0033] The telescopic part has one end fixedly connected to the side wall of the cross frame and the other output end fixedly connected to the side wall of the inner support plate, which is used to adjust the moving distance of the inner support plate.

[0034] The partition has its side walls fixedly connected to the cross frame, pressing sleeve, or side plate side walls. The partition has a cross structure and corresponds to the inner support plate. It is used to divide the inside of the pressing sleeve into multiple spaces that are not connected to each other.

[0035] Preferably, the clamping part further includes:

[0036] The discharge holes are all located inside the pressing sleeve and are used to discharge gas from inside the pressing sleeve.

[0037] The anti-slip pad is evenly and fixedly connected to the outer surface of the pressing sleeve and is staggered with the discharge hole to limit friction with the user's arm.

[0038] Preferably, the end of the pressing sleeve is fixedly connected to the side plate and the side wall of the crossbar, the outer surface of the inner support plate is in elastic sealing contact with the inner wall of the pressing sleeve, the pressing sleeve is elastic, the anti-slip pad is elastic, the partition is made of the same material as the pressing sleeve and is evenly distributed, and the pressure sensor is used to detect the pressure value at its end.

[0039] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0040] 1. In this application, by setting up the cooperation of components such as the pressing sleeve and the torsion spring seat, the pressing sleeve applies elastic pressing force to the person's arm through the anti-slip pad, further realizing the friction limit of the person's arm, and improving the elastic buffering effect of the subsequent person on the tea picking machine, avoiding the vibration of the tea picking machine during long-term operation and causing wear and tear on the person's hand, which affects the stability of the hand.

[0041] 2. In this application, by setting up the discharge hole and cooling fan and other components in cooperation, the tea picking machine vibrates continuously and uses the pressing sleeve to elastically buffer the personnel's arms. During this process, the amount of gas discharged from the discharge hole changes continuously and adjusts the pulse cooling effect on the personnel's arms accordingly, thereby improving the comfort and stability of tea picking and ensuring the cooling and sweating effect.

[0042] 3. In this application, by setting up the cooperation of components such as pressure sensor and inner support plate, during the handheld tea picking process, the inner support plate applies a pushing force to the pressing sleeve and makes it rub against the arm of the person to limit the pressure. The pressure value detected by the pressure sensor is the preset pressure value. When the pressure value detected by the pressure sensor increases and exceeds the preset pressure value, the inner support plate moves and adjusts the deformation of the pressing sleeve accordingly, further ensuring that the shape and size of the pressing sleeve correspond to different tilt angles of the arm, thereby improving the comfort and stability of wearing the tea picking machine.

[0043] 4. In this application, by setting up components such as air outlet and docking hole to cooperate with each other, when the inner support plate moves away from the end of the cross frame, the overlapping area of ​​the docking hole and air outlet increases, the cooling fan works and the amount of gas entering the inside of the pressing sleeve along the air outlet and docking hole increases, thereby not only improving the cooling effect of the subsequent discharge hole on the person's arm, but also causing the pressing sleeve to elastically expand and increase the friction pressing force on the person's arm, ensuring the friction limiting effect between the pressing sleeve and the person's arm. Attached Figure Description

[0044] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0045] Figure 2 This is a frontal view of the internal three-dimensional structure of the present invention;

[0046] Figure 3 This is a three-dimensional structural diagram of the drive unit of the present invention;

[0047] Figure 4 This is a three-dimensional structural diagram of the clamping part of the present invention;

[0048] Figure 5 This is a rear view of the internal three-dimensional structure of the clamping part of the present invention;

[0049] Figure 6 This is a top view of the internal three-dimensional structure of the clamping part of the present invention;

[0050] Figure 7 This is a top sectional view of the clamping part of the present invention;

[0051] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0052] Figure 9 This is a left-side three-dimensional view of the internal structure of the clamping part of the present invention;

[0053] Figure 10 for Figure 9 Enlarged view of point B in the middle;

[0054] Figure 11 This is a schematic diagram of the left cross-section of the clamping part of the present invention;

[0055] Figure 12 for Figure 11 Enlarged diagram of point C in the middle.

[0056] In the diagram: 1. Base; 2. Handle; 3. Control box; 4. Battery; 5. Operation key; 6. Drive unit; 601. Motor; 602. Drive gear; 603. Driven gear; 604. Eccentric wheel; 605. Hinge rod; 7. Clamping part; 8. Base frame; 9. Fixed gear; 10. Reciprocating frame; 11. Cutting gear; 12. Mounting shaft; 13. Torsion spring seat; 14. Rotating sleeve; 15. Elastic element; 16. Moving rod; 17. Cross frame; 18. Side plate; 19. Cooling fan; 20. Air outlet; 21. Inner support plate; 22. Docking hole; 23. Telescopic part; 24. Pressure sensor; 25. Pressing sleeve; 26. Partition; 27. Discharge hole; 28. Anti-slip pad; 29. ​​Collection hopper. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] like Figure 1 - Figure 12As shown, the handheld tea-picking machine includes: a base 1 for support and fixation; a reciprocating frame 10 movably connected to one side of the base 1 for cutting tea leaves; that is, the reciprocating frame 10 moves back and forth on one side of the base 1 to realize the reciprocating cutting and picking process of tea leaves; a handle 2 fixedly connected to the top of the base 1 for hand operation; the shape of the handle 2 matches the shape of the hand, making it convenient for different people to pick tea leaves; one bottom side of the handle 2 is fixedly connected to the top of the base 1 through a control box 3, which electrically controls various electrical components; the other bottom side of the handle 2 is fixedly connected to the top of the base 1 through a battery 4, which provides the necessary power to various electrical components; and the battery 4 is relatively heavy and is located at the rear of the handle 2 to facilitate weight distribution; multiple operation buttons 5 are evenly distributed on the outer surface of the handle 2, and different operations are performed by pressing different operation buttons 5.

[0059] Drive unit 6, movably connected inside the base 1, is used to drive the reciprocating frame 10 to reciprocate. Drive unit 6 includes: a motor 601, fixedly connected inside the base 1, for providing driving force; the motor 601 has a conventional electrical structure; a drive gear 602, fixedly connected to the output end of the motor 601; a driven gear 603 is drivenly connected to the outer surface of the drive gear 602; when the motor 601 works, it drives the drive gear 602 to rotate, the drive gear 602 drives the driven gear 603 to rotate; an eccentric wheel 604, movably connected to the driven gear 603... On the side, the eccentric wheel 604 is a conventional design, that is, one end of the eccentric wheel 604 is eccentrically connected to the outer surface of one side of the driven tooth 603. When the driven tooth 603 rotates continuously, it drives the eccentric wheel 604 to swing eccentrically continuously. The other end of the eccentric wheel 604 is movably connected to the hinge rod 605. The other end of the hinge rod 605 is movably connected to the end of the reciprocating frame 10. The hinge rod 605 mainly plays the role of hinge. The rotation of the driven tooth 603 drives the eccentric wheel 604 to swing eccentrically. The eccentric wheel 604 drives the reciprocating frame 10 to move back and forth through the hinge rod 605.

[0060] The base frame 8 is fixedly connected to one side of the base body 1. Multiple fixing teeth 9 are evenly fixedly connected to one side of the base frame 8. The positions of the base frame 8 and the fixing teeth 9 are fixed. The cutting teeth 11 are fixedly connected to one side of the reciprocating frame 10. The reciprocating frame 10 moves back and forth and drives the multiple cutting teeth 11 to move back and forth. The cutting teeth 11 and the fixing teeth 9 mesh with each other and pick tea leaves. Thus, the tea picking process is realized. The collecting hopper 29 is fixedly connected to the top of the base frame 8 and is used to carry and collect tea leaves. The picked tea leaves fall into the collecting hopper 29 for subsequent recycling.

[0061] The clamping part 7 is movably connected to one side of the base 1 and is used for mounting to a person's arm and for cooling and massage. The clamping part 7 elastically presses against the person's arm, thereby improving the stability and support of the person holding the handle 2. The clamping part 7 includes a crossbeam 17, which mainly serves as a fixed support. Side plates 18 are fixedly connected to both ends of the crossbeam 17. The side plates 18 are located on the same side of the crossbeam 17 and are fixed at the position of the pressing sleeve 25. The pressing sleeve 25 is fixedly connected to the outer surface of the side plate 18, which elastically presses against the person's arm. The setting of the pressing sleeve 25 realizes the elastic support of the tea picking machine and, together with the handle 2, achieves dual-point support, avoiding the person holding the handle 2 with one hand for a long time and increasing the difficulty of holding it. Each side plate 18 has an inner support plate 21 movably connected to its opposite end face. This inner support plate 21 is used to adjust the amount of gas inside the pressing sleeve 25. The inner support plate 21 can reciprocate along the side wall of the side plate 18. Each end of the inner support plate 21 is equipped with a pressure sensor 24, which is used to detect the pressure value at its end. After the pressing sleeve 25 is rubbed and limited by the personnel's arm, the pressure value detected by the pressure sensor 24 is the preset pressure value. When the pressure value detected by the pressure sensor 24 is greater than the preset pressure value, the inner support plate 21 moves closer to the end of the crossbar 17, the amount of gas inside the pressing sleeve 25 decreases, and the elastic deformation of the pressing sleeve 25 is further adjusted, thereby improving the squeezing and friction limiting effect with the personnel's arm.

[0062] The clamping part 7 also includes: a mounting shaft 12, which is fixedly connected to both sides of the base 1. The mounting shaft 12 is fixed in position and mainly serves as a support. A torsion spring seat 13 is movably connected to the outer surface of the mounting shaft 12. A rotating sleeve 14 is movably connected to the outer surface of the torsion spring seat 13. The torsion spring seat 13 has torque and applies a reverse force to the rotating sleeve 14. When the rotating sleeve 14 rotates, it drives the torsion spring seat 13 to rotate synchronously. The torque of the torsion spring seat 13 increases and drives the rotating sleeve 14 to increase the reverse rotation force.

[0063] The movable rod 16 is movably connected inside the rotating sleeve 14. The movable rod 16 can move up and down inside the rotating sleeve 14 to adjust the height of the crossbeam 17, correspondingly adjusting the elastic pressing position of the pressing sleeve 25 and the person. One end of the movable rod 16 is fixedly connected to the side wall of the rotating sleeve 14 through the elastic element 15, and the other end is fixedly connected to the side wall of the crossbeam 17. It is used to drive the crossbeam 17 to move and rotate. The elastic element 15 is elastic and can be a spring or other components. The setting of the elastic element 15 facilitates the elastic reset of the movable rod 16, thereby adjusting the elastic pressing force of the movable rod 16.

[0064] The clamping part 7 also includes: an air outlet 20, which is opened inside the side plate 18 for gas discharge; the gas inside the side plate 18 can be discharged into the pressing sleeve 25 through the air outlet 20; a docking hole 22, which is opened inside the inner support plate 21 and matches the air outlet 20, for adjusting the overlapping area with the air outlet 20; when the docking hole 22 moves closer to the end of the crossbar 17, the overlapping area between the air outlet 20 and the docking hole 22 decreases, and the amount of gas inside the air outlet 20 entering the pressing sleeve 25 through the docking hole 22 decreases; and a cooling fan 19, which is fixedly connected to one side of the side plate 18 and whose output end is connected to the air outlet 20, for introducing gas into the air outlet 20. The cooling fan 19 works continuously and the output end introduces gas into the air outlet 20, thereby avoiding problems such as the pressing sleeve 25 pressing against the person's arm for a long time and causing sweating discomfort.

[0065] The clamping part 7 also includes: a telescopic part 23, one end of which is fixedly connected to the side wall of the cross frame 17, and the other output end of which is fixedly connected to the side wall of the inner support plate 21, for adjusting the moving distance of the inner support plate 21; when the telescopic part 23 is activated and the output end extends, the output end of the telescopic part 23 drives the inner support plate 21 to move away from the cross frame 17. The telescopic part 23 can be an electric telescopic rod structure. The partition 26 has its side walls fixedly connected to the side walls of the pressing sleeve 25 or the side plate 18, and the partition 26 corresponds to the inner support plate 21, for dividing the interior of the pressing sleeve 25 into multiple spaces that are not connected to each other; the main function of the partition 26 is to divide the interior space of the pressing sleeve 25, so as to facilitate the adjustment of the amount of gas in different areas of the pressing sleeve 25 according to different tea picking postures, and to adjust the pressing pressure of the pressing sleeve 25 and the person's arm accordingly, thereby improving the stability and sealing of subsequent tea picking.

[0066] The discharge holes 27 are all opened inside the pressing sleeve 25 for the gas inside the pressing sleeve 25 to be discharged. The gas inside the pressing sleeve 25 is continuously discharged along the discharge holes 27. The anti-slip pads 28 are evenly fixedly connected to the outer surface of the pressing sleeve 25 and are staggered with the discharge holes 27. They are used to limit the friction with the personnel's arms. The end of the anti-slip pads 28 is fixed to the outer surface of the personnel through friction, which further improves the stability of the tea picking machine.

[0067] The end of the pressing sleeve 25 is fixedly connected to the side wall of the side plate 18 and the cross frame 17, so the inside of the pressing sleeve 25 is a sealed space, and the gas can only be continuously discharged through the discharge hole 27. The outer surface of the inner support plate 21 is in elastic sealing contact with the inner wall of the pressing sleeve 25. When the inner support plate 21 moves, the elastic deformation of the pressing sleeve 25 is adjusted accordingly. The pressing sleeve 25 is elastic, and the anti-slip pad 28 is also elastic. The friction coefficient of the ends of the multiple anti-slip pads 28 is large, which has good anti-slip performance. The anti-slip pads 28 elastically rub against the arm of the person to limit the movement, so as to prevent the pressing sleeve 25 from being separated from the arm. The partition 26 is made of the same material as the pressing sleeve 25 and is evenly distributed. The pressure sensor 24 is used to detect the pressure value at its end and adjust the subsequent movement of the inner support plate 21 according to the pressure value.

[0068] When personnel use handheld tea-picking machines to harvest tea leaves, the varying heights of the tea trees necessitate different angles at which the machine is held, reducing the stability and accuracy of the grip. Furthermore, the continuous operation and vibration of the tea-picking machine transmits these vibrations to the personnel, potentially causing injury to their forearms. Existing technologies often rely on clamping parts 7 to improve the stability of the machine; however, the varying friction of different personnel's arms necessitates different pressures when using clamping parts 7 to support the machine, leading to slippage between the clamping parts 7 and the personnel's arms and reducing the effectiveness of the balance mechanism. With prolonged use, the personnel's arms may become sore, and the constant pressure and sweating from the clamping parts 7 can reduce the comfort of tea picking. If the personnel are bumped or accidentally lose their grip on the handle 2, the base 1 causes the collection bucket 29 at the other end to rotate in the opposite direction and fall downwards. This not only damages the tea tree when the collection bucket 29 falls, but also causes the crossbar 17 to collide with and injure the personnel's hands.

[0069] To solve the above problems, in actual use, the handheld tea picking machine allows the operator to use one hand to rotate the rotating sleeve 14 to twist the torsion spring seat 13 and rotate it, while the other hand passes between the cross frame 17 and the seat 1 and holds the handle 2. After releasing the rotating sleeve 14, the torsion of the torsion spring seat 13 causes the rotating sleeve 14 to rotate in the opposite direction. The rotating sleeve 14 simultaneously causes the moving rod 16 to rotate in the opposite direction. The moving rod 16 causes the cross frame 17 at the end to rotate in the opposite direction. The cross frame 17 causes the pressing sleeve 25 to rotate in the opposite direction and complete the elastic pressing with the operator's arm. Multiple anti-slip pads 28 elastically squeeze with the operator's arm and provide friction.

[0070] During this process, due to the different smoothness of the personnel's arms, if the personnel wear sun protection sleeves or other materials that reduce the coefficient of friction, the elastic force of the elastic element 15 will cause the moving rod 16 to move closer to the rotating sleeve 14. The moving rod 16 will simultaneously drive the pressing sleeve 25 to move through the crossbar 17. The friction between the multiple anti-slip pads 28 at the end of the pressing sleeve 25 and the arm will not meet the requirements and there is a risk of slipping.

[0071] At this time, the control box 3 controls the cooling fan 19 to start and introduce gas through the air outlet 20. The gas enters the pressing sleeve 25 through the docking hole 22. The gas inside the pressing sleeve 25 is discharged through the discharge hole 27. Some of the gas causes the pressing sleeve 25 to continuously undergo elastic deformation, which, together with the anti-slip pad 28 and the person's arm, applies pressing pressure. At the same time, the telescopic part 23 starts and the output end extends. The output end of the telescopic part 23 drives the inner support plate 21 to move away from the crossbeam 17. The end of the inner support plate 21 synchronously drives the pressing sleeve 25 to move. The pressing sleeve 25 drives multiple The pressing pressure between the anti-slip pad 28 and the person's arm increases, and the overlapping area of ​​the docking hole 22 and the air outlet 20 increases. When the cooling fan 19 is working, the amount of gas generated enters the inside of the pressing sleeve 25 along the air outlet 20 and the docking hole 22, which increases the pressing pressure applied to the person's arm by the anti-slip pad 28. The pressure value detected by the pressure sensor 24 continues to increase, further improving the friction between the anti-slip pad 28 and the arm, preventing the anti-slip pad 28 at the end of the pressing sleeve 25 from slipping on the person's arm and reducing the friction limiting effect.

[0072] Subsequently, when the elastic element 15 can no longer move the moving rod 16, that is, when the friction between the anti-slip pad 28 at the end of the pressing sleeve 25 and the person's arm reaches a suitable value, the position of the pressing sleeve 25 will not change. The person presses the operation button 5 and starts the tea picking machine. The pressure value detected by the pressure sensor 24 is the preset pressure value, and the movement of the subsequent inner support plate 21 is adjusted according to the preset pressure value to further satisfy the friction limit pressing effect of the pressing sleeve 25 on different arm friction forces, making it more adaptable and more stable.

[0073] Then, the motor 601 starts and drives the drive gear 602 to rotate. The rotation of the drive gear 602 drives the driven gear 603 to rotate. The driven gear 603 drives the eccentric wheel 604 to rotate eccentrically and drives the reciprocating frame 10 to move back and forth inside the base frame 8 through the hinge rod 605. The reciprocating frame 10 drives the cutting tooth 11 to move back and forth continuously and cooperates with the fixed tooth 9 to cut and pick the tea leaves. The fallen tea leaves enter the collection hopper 29 to wait for recycling.

[0074] Furthermore, the cooling fan 19 is activated and gas is introduced into the air outlet 20. The gas continuously enters the pressing sleeve 25 along the docking hole 22, and the gas inside the pressing sleeve 25 is continuously discharged along the discharge hole 27, thereby realizing the air cooling process of the person's arm and avoiding the pressing sleeve 25 and anti-slip pad 28 from being pressed against the arm for a long time and causing discomfort symptoms such as high temperature and sweating.

[0075] Simultaneously, as the drive unit 6 continuously operates, it drives the seat 1 to vibrate. The seat 1 transmits this vibration sequentially upwards to the rotating sleeve 14 and the moving rod 16, and then through the crossbar 17 to the pressing sleeve 25. The pressing sleeve 25 continuously vibrates and presses against the arm through the anti-slip pad 28. With the elastic shock absorption and buffering of the pressing sleeve 25, the anti-slip pad 28, and the arm, vibration damage to the hand or arm of the person is avoided when the tea picking machine vibrates for a long time, effectively improving the comfort and stability of use.

[0076] Furthermore, the vibration force not only enables the pressing sleeve 25 and anti-slip pad 28 to apply pulse pressure to the arm and improve blood circulation, avoiding problems such as muscle spasms in the arm caused by prolonged hand handling of the tea-picking machine, but also causes the pressing sleeve 25 to be subjected to pulse pressure from the arm, resulting in continuous pulse changes in the amount of gas discharged through the discharge hole 27. This further enables pulse regulation of the amount of gas discharged through the discharge hole 27, effectively improving the pressing and cooling effect of the pulsed gas discharged through the discharge hole 27 on the arm, ensuring stable operation of the tea-picking machine for a long time. Moreover, during the above process, the pressure value changes detected by the pressure sensor 24 are all within the set range. Therefore, the control box 3 does not control the telescopic part 23 to work, and the position of the inner support plate 21 does not change.

[0077] As personnel continuously operate and harvest tea trees at different heights, the angle between the personnel and the seat 1 changes continuously. For example, when the height of the tea tree decreases, the personnel need to move the seat 1 downwards. At this time, since the personnel's height is constant, the angle between the personnel and the seat 1 increases. The arm and the pressing sleeve 25 squeeze each other and drive the pressing sleeve 25 to rotate. The pressing sleeve 25 drives the moving rod 16 and the rotating sleeve 14 to rotate synchronously through the cross frame 17. The rotating sleeve 14 twists the torsion spring seat 13 to rotate synchronously. However, in this process, since the cross frame 17 and the angle between the pressing sleeve 25 and the moving rod 16 are constant, the pressing force applied by the personnel's arm to different positions of the pressing sleeve 25 is different.

[0078] As described above, the pressure exerted by the operator's arm on the lower pressing sleeve 25 increases, and the pressure value detected by the pressure sensor 24 increases and exceeds the preset pressure value. To prevent excessive deformation of the pressing sleeve 25 and damage to the operator's arm, the control box 3 activates the lower telescopic part 23 and shortens its output end. The output end of the telescopic part 23 moves the inner support plate 21 closer to the crossbar 17, reducing the pressure exerted by the end of the inner support plate 21 on the inner wall of the pressing sleeve 25. The pressure value detected by the pressure sensor 24 continuously decreases and returns to the initial preset pressure value. Simultaneously, the inner support plate 21 moves, causing the docking hole 22 to move. The overlapping area between the docking hole 22 and the air outlet 20 decreases, and the cooling fan 19 operates, reducing the amount of gas discharged into the pressing sleeve 25 along the air outlet 20 and the docking hole 22. This prevents excessive gas volume in the pressing sleeve 25 at this position from causing excessive pressure on the operator's arm and affecting the operator's comfort during normal operation.

[0079] Simultaneously, as the pressure value detected by the pressure sensor 24 located above decreases, the control box 3 controls the telescopic part 23 at that position to start and extend its output end. The output end of the telescopic part 23 drives the inner support plate 21 to move away from the crossbar 17. The inner support plate 21 drives the pressing sleeve 25 to increase the pressing force on the person's arm. The pressure value detected by the pressure sensor 24 continuously increases and reaches the preset pressure value, thereby ensuring the friction limiting effect of the pressing sleeve 25 and the anti-slip pad 28 on the person's arm. In addition, during the movement of the inner support plate 21, the docking hole 22 moves synchronously. The overlapping area of ​​the docking hole 22 and the air outlet 20 increases. When the cooling fan 19 is working, the amount of gas introduced into the pressing sleeve 25 along the air outlet 20 and the docking hole 22 increases. The expansion of the pressing sleeve 25 increases, and the pressure applied to the person's arm increases accordingly. Together, they ensure the friction pressing effect of the pressing sleeve 25 and the anti-slip pad 28 on the person's arm at different tilt angles.

[0080] Furthermore, as the angle of the arm constantly changes during operation, the multiple inner support plates 21 continuously move and adjust the overlapping area of ​​the docking hole 22 and the air outlet 20 according to the above process. The amount of gas inside the pressing sleeve 25 changes accordingly, and the amount of gas discharged from the multiple exhaust holes 27 changes accordingly. With the help of this changing wind force, the pulse cooling and sweating effect on the arm of the operator is further improved, avoiding the impact on the normal use effect of the tea picking machine due to prolonged use and high temperature sweating.

[0081] During continuous use, if the collection bucket 29 is hit or the hand slips from the handle 2, causing the handle 2 to be released, it will fall downwards simultaneously under the gravity of the seat 1 and the collection bucket 29 on one side. During this process, the pressing sleeve 25 is elastically squeezed against the person's arm and positioned above it. Under the torsion of the torsion spring seat 13, the seat 1 is driven to rotate in the opposite direction, and the rotating sleeve 14 is driven to rotate in the opposite direction. The pressing force of the pressing sleeve 25 and the person's arm continues to increase, and the pressure value detected by the pressure sensor 24 reaches the set maximum pressure value.

[0082] To prevent the pressing sleeve 25 from detaching from the operator's arm and causing damage from a collision with the palm, the control box 3 activates multiple telescopic parts 23, extending their output ends to their maximum distance. The output ends of the telescopic parts 23 drive the inner support plate 21 to move away from the crossbeam 17 to its maximum distance. The end of the inner support plate 21 causes the pressing sleeve 25 to exert maximum pressure on the operator's arm. During this process, the inner support plate 21 also drives the docking hole 22 to move synchronously, and the overlapping area between the docking hole 22 and the air outlet 20 reaches its maximum value. The cooling fan 19 then moves along the air outlet 20 and the docking hole 22 towards the pressing sleeve 25. When the amount of gas introduced into the internal part reaches its maximum value, and the amount of gas entering the pressing sleeve 25 is greater than the amount discharged from the multiple discharge holes 27, the pressing sleeve 25 continuously expands elastically and, together with the anti-slip pad 28, increases the friction and pressing force with the person's arm, thereby preventing the cross frame 17 from falling down with the seat body 1 and colliding with the person's palm and causing injury. At the same time, the expansion of the pressing sleeve 25 further drives the moving rod 16 and the rotating sleeve 14 to rotate in the opposite direction, making it easier for the person's palm to grip the handle 2 again and resume the operation of the seat body 1, thus preventing the seat body 1 from causing the collection bucket 29 at the end to fall and cause a major safety accident.

[0083] Repeat the above process to pick tea leaves using a tea-picking machine. Once picking is complete, release the operation button 5, rotate the moving lever 16 with the other hand and release it from the handle 2, and then remove the tea-picking machine.

[0084] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0085] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handheld tea-picking machine, characterized in that, include: The base (1) is used for support and fixation; A reciprocating frame (10) is movably connected to one side of the base (1) and is used to cut tea leaves; The drive unit (6) is fixedly connected inside the base (1) and is used to drive the reciprocating frame (10) to move back and forth. The clamping part (7) is movably connected to one side of the seat (1) for installation on the arm of the person and for cooling and massage; The clamping part (7) includes a cross frame (17). Side plates (18) are fixedly connected to both ends of the cross frame (17). A pressing sleeve (25) is fixedly connected to the outer surface of the side plate (18), which presses elastically against the arm of the person. An inner support plate (21) is movably connected to the facing end of the two side plates (18) to adjust the amount of gas inside the pressing sleeve (25). A pressure sensor (24) is provided at the end of the inner support plate (21). After the pressing sleeve (25) is rubbed against the arm of the person, the pressure value detected by the pressure sensor (24) is the preset pressure value. When the pressure value detected by the pressure sensor (24) is greater than the preset pressure value, the inner support plate (21) moves closer to the end of the cross frame (17), and the amount of gas inside the pressing sleeve (25) decreases. The clamping part (7) also includes: Mounting shaft (12) is fixedly connected to both sides of the base (1). A torsion spring seat (13) is movably connected to the outer surface of the mounting shaft (12). A rotating sleeve (14) is movably connected to the outer surface of the torsion spring seat (13). The torsion spring seat (13) has torque and applies a reverse force to the rotating sleeve (14). The movable rod (16) is movably connected inside the rotating sleeve (14), and one end of the movable rod (16) is fixedly connected to the side wall of the rotating sleeve (14) through the elastic element (15), and the other end is fixedly connected to the side wall of the cross frame (17), which is used to drive the cross frame (17) to move and rotate. An air outlet (20) is located inside the side panel (18) and is used for gas exhaust. The mating hole (22) is opened inside the inner support plate (21) and matches the air outlet (20) to adjust the overlapping area with the air outlet (20); Cooling fan (19) is fixedly connected to one side of side plate (18) and its output end is connected to air outlet (20) for introducing gas into the air outlet (20); The telescopic part (23) has one end fixedly connected to the side wall of the cross frame (17) and the other output end fixedly connected to the side wall of the inner support plate (21) for adjusting the moving distance of the inner support plate (21); The discharge holes (27) are all located inside the pressing sleeve (25) and are used to discharge gas from inside the pressing sleeve (25); Anti-slip pad (28) is evenly fixed to the outer surface of the pressing sleeve (25) and is staggered with the discharge hole (27) for limiting friction with the arm of the person.

2. The handheld tea-picking machine according to claim 1, characterized in that, The drive unit (6) includes: The motor (601) is fixedly connected inside the base (1) and is used to provide driving force; A drive tooth (602) is fixedly connected to the output end of a motor (601), and a driven tooth (603) is connected to the outer surface of the drive tooth (602). An eccentric wheel (604) is movably connected to one side of the driven gear (603). The other end of the eccentric wheel (604) is movably connected to a hinge rod (605). The other end of the hinge rod (605) is movably connected to the end of the reciprocating frame (10). The driven gear (603) rotates, causing the eccentric wheel (604) to swing eccentrically. The eccentric wheel (604) drives the reciprocating frame (10) to move back and forth through the hinge rod (605).

3. The handheld tea-picking machine according to claim 1, characterized in that, Also includes: The base frame (8) is fixedly connected to one side of the base body (1), and multiple fixing teeth (9) are evenly fixedly connected to one side of the base frame (8). Cutting teeth (11) are fixedly connected to one side of the reciprocating frame (10). The reciprocating frame (10) moves back and forth and drives multiple cutting teeth (11) to move back and forth. The cutting teeth (11) and the fixed teeth (9) mesh with each other and pick tea leaves. The collecting hopper (29) is fixedly connected to the top of the base frame (8) and is used to carry and collect tea leaves.

4. The handheld tea-picking machine according to claim 1, characterized in that, The clamping part (7) also includes: The partition (26) has its side walls fixedly connected to the side walls of the cross frame (17), the pressing sleeve (25) or the side plate (18), and the partition (26) has a cross structure and corresponds to the inner support plate (21), which is used to divide the interior of the pressing sleeve (25) into multiple spaces that are not connected to each other.

5. The handheld tea-picking machine according to claim 4, characterized in that, The end of the pressing sleeve (25) is fixedly connected to the side wall of the side plate (18) and the crossbar (17). The outer surface of the inner support plate (21) is in elastic sealing contact with the inner wall of the pressing sleeve (25). The pressing sleeve (25) is elastic. The anti-slip pad (28) is elastic. The partition (26) is made of the same material as the pressing sleeve (25) and is evenly distributed. The pressure sensor (24) is used to detect the pressure value at its end.

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