Outer limb tea leaf picking device and picking method thereof

Abstract

The invention belongs to the technical field of tea leaf picking, and discloses an outer limb tea leaf picking device and a picking method thereof.The outer limb tea leaf picking device comprises a mounting frame, a crank arm and a mounting belt are fixedly arranged on the back face of the mounting frame, and the end face of the mounting frame fixedly communicates with a suction pump. According to the semi-automatic tea leaf picking device, the picking cylinder is matched with the cutting assembly, mechanical cutting of tea leaves is achieved by controlling opening, closing and ventilation of the air supply assembly and matching with hydraulic driving force, and semi-automatic picking is achieved in the actual tea leaf picking process by matching with suction of the suction pump and centralized collection; on the other hand, special cutting and collection of target tea leaves are achieved in cooperation with mechanical control, efficient and high-quality picking is achieved in an outer limb mode, the quality stability of manual picking is achieved, the efficiency of mechanical picking is also achieved, the comprehensive picking efficiency is high, and the quality is good.

Description

Technical Field

[0001] The invention belongs to the technical field of tea picking, and in particular relates to an external limb tea picking device and a picking method thereof. Background Art

[0002] In the tea planting and production process, tea leaves are usually picked, transferred from the tea garden plants to the processing site, and then processed subsequently.

[0003] The tea picking device in the prior art is usually used for manual picking or mechanical picking during use. Manual picking has higher precision and is usually used for picking small tea gardens or high-quality tea. Manual picking is the most common picking method. However, the actual picking efficiency is low and the labor consumption is too high. On the other hand, mechanical picking has high requirements on the terrain of the tea garden. Although it can improve the picking efficiency in tea gardens on open platforms, mechanized picking has low quality recognition of tea leaves and has large application restrictions, and the overall use effect is not good. Summary of the invention

[0004] The object of the present invention is to provide an external limb tea picking device and a picking method thereof to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: an external limb tea picking device and a picking method thereof, comprising a mounting frame, a curved arm and a mounting belt are fixedly provided on the back of the mounting frame, the end face of the mounting frame is fixedly connected with a suction pump, and the two sides of the bottom of the mounting frame are fixedly connected with a purge assembly and a mounting head, a picking barrel is fixedly provided at the bottom of the purge assembly, a cutting assembly is fixedly connected to the side of the picking barrel, a control assembly is fixedly provided on the top of the cutting assembly, an air supply assembly is fixedly provided at the bottom of the mounting frame, the air supply assembly has two air outlet ends, one air outlet end is connected with the purge assembly, and the other air outlet end is connected with the control assembly, a storage assembly is sleeved on the bottom of the mounting head, a sealing plate is sleeved inside the mounting frame, and the sealing plate is fixedly connected to one end of the control assembly.

[0006] Preferably, the bottom of the mounting frame is provided with a No. 1 port and a No. 2 port, respectively, the No. 1 port is connected to the mounting head, the No. 2 port is connected to the top of the purge assembly, a baffle is fixedly provided inside the mounting frame, the baffle is located above the No. 1 port, and the suction pump sucks the air inside the picking cylinder through the mounting frame and the purge assembly.

[0007] Preferably, the picking cylinder comprises a cylinder body and an adapting groove, the cylinder body is fixed to the bottom of the purge assembly, and the adapting groove is opened inside the cylinder body.

[0008] Preferably, the purge assembly includes an inner ring, an outer ring and an inclined hole, the inner ring and the outer ring are fixedly connected between the cylinder and the mounting frame, the outer ring is located outside the inner ring, and an annular cavity is provided between them, and the inclined hole is opened on the outside of the inner ring.

[0009] Preferably, the cutting assembly includes a sleeve frame, a cutting knife, a positioning rod and a spring. The sleeve frame is fixed on the outer surface of the cylinder and aligned with the adapting groove. The cutting knife is movably sleeved in the sleeve frame. The cutting knife is adapted to the adapting groove. The positioning rod is fixedly connected to one end of the cutting knife and movably sleeved in the sleeve frame. One end of the spring is fixed in the sleeve frame, and the other end is fixedly connected to the cutting knife.

[0010] Preferably, the control assembly includes a fixed tube, a positioning ring, a connecting rod and a second spring, the fixed tube is fixedly connected to the top of the sleeve frame and is communicated with the interior of the sleeve frame, the positioning ring is fixedly sleeved in the fixed tube, one end of the connecting rod is movably sleeved in the fixed tube, and the other end is fixedly connected to the sealing plate, one end of the second spring is fixedly connected to the positioning ring, and the other end is fixedly connected to the inner end of the connecting rod.

[0011] Preferably, the air supply assembly includes an air pump, a control valve, a No. 1 pipe and a No. 2 pipe. The air pump is fixed on the bottom of the mounting frame, the control valve is fixed on the air outlet end of the air pump, the No. 1 pipe and the No. 2 pipe are respectively fixed on the two air outlet ends of the control valve, the other end of the No. 1 pipe is fixedly connected to the outer ring and is connected to the space of the outer ring and the inner environmental temperature control, and the other end of the No. 2 pipe is fixedly connected to the fixed pipe.

[0012] Preferably, a sealing sleeve is provided at the bottom of the mounting frame, and the sealing sleeve is located on the outer side of the sealing plate. A control button is provided on the top of the curved arm to control the start and reversal of the air supply assembly. The mounting head includes a bottom frame, a threaded rod and a locking cap. The bottom frame is fixed to the bottom of the mounting frame and is connected to the No. 1 port. The threaded rod is fixedly connected to the front side of the bottom frame, and the locking cap is threadedly sleeved on the outer surface of the threaded rod.

[0013] Preferably, the storage assembly includes a storage frame, a connecting frame and an inclined plate, the connecting frame is fixedly connected to the top of the storage frame, the inclined plate is fixedly connected to the inside of the storage frame, the connecting frame is sleeved on the outside of the bottom frame, and a notch is provided on the front of the connecting frame.

[0014] A picking method of an external limb tea picking device, comprising the following picking steps:

[0015] Step 1: When picking and using, put the arm into the installation belt to fix it, hold the curved arm, complete the wearing, and keep the suction pump started;

[0016] Step 2: The picker determines the target tea leaves to be picked, and moves his arm to drive the wearable device to approach the top of the target tea leaves, so that the picking tube is set on the upper part of the tea leaves to be picked;

[0017] Step 3: Operate the control button on the crank arm to start the air supply assembly and the air pump. Under normal circumstances, the air pump outputs air through the control valve and the No. 2 pipe and inputs it into the interior of the control assembly, pushing the connecting rod down and compressing the spring 2. The connecting rod compresses the hydraulic oil inside the fixed pipe, so that the hydraulic pressure in the connected cutting assembly increases, and the hydraulic pressure pushes the cutting knife to move to the adapter slot and cut the tea leaves;

[0018] Step 4: After cutting, the cutting knife seals the bottom of the picking tube, and the control component drives the sealing plate to move down, the installation frame is opened, and the suction pump sucks the tea leaves in the picking tube through the installation frame, the second port, and the purge component. The tea leaves are sucked into the installation frame and fall into the storage component under the obstruction of the inclined baffle. Then the air supply component is closed, the control component drives the cutting component to reset, the sealing plate to reset, the suction of the suction pump is blocked, the position of the picking tube is changed, and the next group of tea leaves are picked;

[0019] Step 5: When the target tea leaves need to be cleaned, as the picking cylinder is placed above the tea leaves, the air supply assembly is started, and the control valve guides the pressurized air into the purge assembly, and the purge assembly purges and cleans the target tea leaves downwards;

[0020] Step 6. When the storage frame is full, loosen the locking cap, remove the storage assembly with the damping sleeve, and dump it.

[0021] The beneficial effects of the present invention are as follows:

[0022] (1) The present invention utilizes the mounting belt and the curved arm installed on the back of the mounting frame to achieve the wearing of the device on the arm of the picking worker, and cooperates with the picking tube and the cutting component. By controlling the opening and closing and ventilation of the air supply component, the hydraulic driving force is cooperated to achieve mechanical cutting of the tea leaves, and the suction pump is cooperated to suck and collect the tea leaves in a centralized manner, so as to achieve semi-automatic picking in the actual tea picking process. On the one hand, it relies on the active identification and judgment of the workers to accurately locate the tea leaves with fixed quality and make high-quality judgments on the tea picking. On the other hand, it cooperates with mechanical control to achieve special cutting and collection of the target tea leaves, and uses the external limb method to achieve efficient and high-quality picking, that is, it has the quality stability of manual picking and the efficiency of mechanical picking, and the comprehensive picking efficiency is high and the quality is good.

[0023] (2) The present invention utilizes a wearable picking device in the form of an external limb to perform picking operations after the personnel put it on. While realizing mechanical cutting and picking, the suction effect of the suction pump is utilized in combination with the sealing effect after cutting to realize the transfer and collection of tea leaves at the cut position. While realizing manual-mechanical coordinated picking, quick storage can also be achieved, avoiding the need for repeated arm swinging operations to complete the storage of tea leaves after manual picking. In fact, the entire process from picking to transfer and storage is completed in one go and is automatically realized, with simple operation and good use effect.

[0024] (3) The present invention reuses the air supply component in conjunction with the purging component on the top of the picking tube to target the situation where there are fallen leaves and impurities on the surface of the tea leaves, and to avoid the situation where there are obvious water droplets. After the picking tube moves and positions to the target tea leaves, the gas output direction is changed and the target tea leaves are purged and cleaned to remove impurities and dust attached to the surface. At the same time, the purging and dispersion is achieved for the situation where dew droplets condense on the surface. Automatic cleaning is achieved during the picking process, and the water content in the picking process can be reduced, thereby improving the subsequent storage quality and further improving the picking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0027] Figure 3 It is a cross-sectional schematic diagram of the installation frame of the present invention;

[0028] Figure 4 It is a cross-sectional schematic diagram of the purge assembly and the picking cylinder of the present invention;

[0029] Figure 5 is a schematic diagram of the gas supply assembly of the present invention;

[0030] Figure 6 is a schematic diagram of a picking barrel of the present invention;

[0031] Figure 7 It is an exploded schematic diagram of the cutting assembly of the present invention;

[0032] Figure 8 is a cross-sectional schematic diagram of a control assembly of the present invention;

[0033] Fig. 9 An exploded schematic diagram of the mounting head and storage assembly of the present invention;

[0034] Fig.10 It is a cross-sectional schematic diagram of the storage component of the present invention.

[0035] In the figure: 1. Installation frame; 2. Suction pump; 3. Purge assembly; 31. Inner ring; 32. Outer ring; 33. Oblique hole; 4. Picking tube; 41. Cylinder body; 42. Adapter groove; 5. Cutting assembly; 51. Sleeve frame; 52. Cutting knife; 53. Positioning rod; 54. Spring one; 6. Control assembly; 61. Fixed pipe; 62. Positioning ring; 63. Connecting rod; 64. Spring two; 7. Air supply assembly; 71. Air pump; 72. Control valve; 73. No. 1 pipe; 74. No. 2 pipe; 8. Mounting head; 81. Bottom frame; 82. Threaded rod; 83. Locking cap; 9. Storage assembly; 91. Storage frame; 92. Connecting frame; 93. Inclined plate; 10. Mounting belt; 11. Crank arm; 12. No. 1 port; 13. No. 2 port; 14. Baffle; 15. Sealing plate. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] like Figures 1 to 10 As shown, an embodiment of the present invention provides an external limb tea picking device and a picking method thereof, comprising a mounting frame 1, a curved arm 11 and a mounting belt 10 are fixedly provided on the back of the mounting frame 1, a suction pump 2 is fixedly connected to the end face of the mounting frame 1, a purge assembly 3 and a mounting head 8 are fixedly connected to the two sides of the bottom of the mounting frame 1, a picking barrel 4 is fixedly provided at the bottom of the purge assembly 3, a cutting assembly 5 is fixedly connected to the side of the picking barrel 4, a control assembly 6 is fixedly provided on the top of the cutting assembly 5, an air supply assembly 7 is fixedly provided at the bottom of the mounting frame 1, the air supply assembly 7 has two air outlet ends, one air outlet end is connected to the purge assembly 3, and the other air outlet end is connected to the control assembly 6, a storage assembly 9 is sleeved and installed on the bottom of the mounting head 8, a sealing plate 15 is sleeved inside the mounting frame 1, and the sealing plate 15 is fixedly connected to one end of the control assembly 6.

[0038] Embodiment 1: When picking, the arm is sleeved in the mounting belt 10 for sleeve fixing, and the crank arm 11 is held to complete the wearing, and the suction pump 2 is kept started. The picker determines the target tea leaves to be picked, and moves the arm to drive the worn device close to the top of the target tea leaves, so that the picking tube 4 is sleeved on the upper part of the tea leaves to be picked, and the control button on the crank arm 11 is operated to start the air supply component 7, and the air pump 71 is started. Under normal circumstances, the air pump 71 outputs air through the control valve 72 and the second pipe 74, and inputs it into the interior of the control component 6, pushing the connecting rod 63 downward, and compressing the spring 2 64, and the connecting rod 63 compresses the hydraulic oil in the fixed pipe 61, so that the hydraulic pressure in the connected cutting component 5 increases, and the hydraulic pressure pushes The cutting knife 52 moves into the adapting groove 42 and cuts the tea leaves; after cutting, the cutting knife 52 seals the bottom of the picking tube 4, and at the same time, the control component 6 drives the sealing plate 15 to move downward, and the mounting frame 1 is opened. The suction pump 2 sucks the tea leaves in the picking tube 4 through the mounting frame 1, the second port 13, and the purge component 3. The tea leaves are sucked into the mounting frame 1 and fall into the storage component 9 under the obstruction of the inclined baffle 14. Then the air supply component 7 is closed, and the control component 6 drives the cutting component 5 to reset, the sealing plate 15 to reset, the suction of the suction pump 2 is blocked, the position of the picking tube 4 is changed, and the next group of tea leaves are picked; when the storage frame 91 is full, loosen the locking cap 83, remove the storage component 9 with the damping sleeve, and dump it.

[0039] Firstly, by utilizing the mounting belt 10 and the curved arm 11 installed on the back of the mounting frame 1, the device can be worn on the arm of the picking worker, and the picking tube 4 and the cutting component 5 can be coordinated. By controlling the opening and closing and ventilation of the air supply component 7, the mechanical cutting of the tea leaves can be achieved by cooperating with the hydraulic driving force, and the suction pump 2 can be used for suction and centralized collection. Semi-automatic picking can be achieved in the actual tea picking process. On the one hand, it relies on the active identification and judgment of the workers to accurately locate the tea leaves with fixed quality and high-quality judgment of tea picking. On the other hand, it cooperates with mechanical control to realize the special cutting and collection of the target tea leaves, and uses the external limb method to achieve efficient and high-quality picking, which has both the quality stability of manual picking and the efficiency of mechanical picking, with high comprehensive picking efficiency and good quality.

[0040] In addition, by utilizing an external limb-type wearable picking device, picking operations can be performed after personnel put it on. While mechanical cutting and picking are being performed, the suction effect of the suction pump 2 is utilized, in conjunction with the sealing effect after cutting, to achieve transfer and collection of tea leaves at the cut position. While achieving manual-mechanical coordinated picking, quick storage can also be achieved, avoiding the need for repeated arm swinging operations after manual picking to complete storage of tea leaves. In fact, the entire process from picking to transfer and storage is completed in one go and is automatically achieved, with simple operation and good use effect.

[0041] Embodiment 2: When the target tea leaves need to be cleaned, with the picking cylinder 4 being sleeved above the tea leaves, the air supply assembly 7 is started, and the control valve 72 directs pressurized air into the purge assembly 3, and the purge assembly 3 purges and cleans the target tea leaves downwards.

[0042] Firstly, by reusing the air supply assembly 7 in cooperation with the purging assembly 3 on the top of the picking tube 4, in order to deal with the situation where there are fallen leaves and impurities on the surface of the tea leaves, and to avoid the situation where there are obvious water droplets, after the picking tube 4 moves and positions to the target tea leaves, by changing the gas output direction and blowing and cleaning the target tea leaves, impurities and dust attached to the surface are removed, and in the case of dew droplets condensed on the surface, the purging and dispersion is achieved. While achieving automatic cleaning during the picking process, it can also reduce the water content in the picking process, improve the subsequent storage quality, and further improve the picking effect.

[0043] Among them, the bottom of the installation frame 1 is respectively provided with a No. 1 port 12 and a No. 2 port 13, the No. 1 port 12 is connected to the installation head 8, and the No. 2 port 13 is connected to the top of the purge assembly 3. A baffle 14 is fixedly provided inside the installation frame 1, and the baffle 14 is located above the No. 1 port 12. The suction pump 2 sucks the air inside the picking cylinder 4 through the installation frame 1 and the purge assembly 3. The picking cylinder 4 includes a cylinder body 41 and an adapter groove 42. The cylinder body 41 is fixed at the bottom of the purge assembly 3, and the adapter groove 42 is provided inside the cylinder body 41.

[0044] The tea leaves are sucked in by utilizing the No. 2 port 13 and dropped into the storage assembly 9 by utilizing the No. 1 port 12. The suction pump 2 draws the internal air to guide the tea leaves to transfer from the picking tube 4 to the storage assembly 9. A through hole is provided on the front side of the baffle 14 to ensure gas conduction and limit the movement of the tea leaves, guiding them into the storage assembly 9.

[0045] Among them, the purge assembly 3 includes an inner ring 31, an outer ring 32 and an inclined hole 33. The inner ring 31 and the outer ring 32 are fixedly connected between the cylinder 41 and the mounting frame 1. The outer ring 32 is located on the outside of the inner ring 31, and an annular cavity is provided between them. The inclined hole 33 is opened on the outside of the inner ring 31.

[0046] The purge assembly 3 cooperates with the air supply assembly 7. After the air supply is guided to the purge assembly 3, the inside of the picking tube 4 is purged to complete the airflow processing of the tea leaves.

[0047] Among them, the cutting assembly 5 includes a sleeve frame 51, a cutting knife 52, a positioning rod 53 and a spring 54. The sleeve frame 51 is fixed on the outer surface of the cylinder 41 and is aligned with the adaptation groove 42. The cutting knife 52 is movably sleeved in the sleeve frame 51. The cutting knife 52 is adapted to the adaptation groove 42. The positioning rod 53 is fixedly connected to one end of the cutting knife 52 and movably sleeved in the sleeve frame 51. One end of the spring 54 is fixed in the sleeve frame 51, and the other end is fixedly connected to the cutting knife 52.

[0048] The cutting assembly 5 moves in coordination with the internal hydraulic enhancement effect, and is adapted to be matched with the adapting groove 42 to complete the cutting of the tea leaves and the sealing of the picking tube 4, and the spring 54 facilitates elastic reset.

[0049] Among them, the control component 6 includes a fixed tube 61, a positioning ring 62, a connecting rod 63 and a spring 64. The fixed tube 61 is fixedly connected to the top of the sleeve frame 51 and is connected to the inside of the sleeve frame 51. The positioning ring 62 is fixedly sleeved in the fixed tube 61. One end of the connecting rod 63 is movably sleeved in the fixed tube 61, and the other end is fixedly connected to the sealing plate 15. One end of the spring 64 is fixedly connected to the positioning ring 62, and the other end is fixedly connected to the inner end of the connecting rod 63.

[0050] The control component 6 realizes air pressure push through the air supply effect of the air supply component 7, completes internal movement, and compresses the hydraulic oil inside, thereby controlling the hydraulic strength in the cutting component 5, realizing hydraulic control, and completing the cutting control. At the same time, it cooperates with the connection with the sealing plate 15 to realize the synchronous control of the sealing plate 15, ensuring that the installation frame 1 is opened after cutting to realize the adsorption and transfer of tea leaves.

[0051] Among them, the air supply component 7 includes an air pump 71, a control valve 72, a No. 1 pipe 73 and a No. 2 pipe 74. The air pump 71 is fixed at the bottom of the mounting frame 1, the control valve 72 is fixed on the air outlet end of the air pump 71, the No. 1 pipe 73 and the No. 2 pipe 74 are respectively fixed on the two air outlet ends of the control valve 72, the other end of the No. 1 pipe 73 is fixedly connected to the outer ring 32, and is connected to the heat-insulating space of the outer ring 32 and the inner ring 31, and the other end of the No. 2 pipe 74 is fixedly connected to the fixed pipe 61.

[0052] The air supply assembly 7 provides air pressure and cooperates with output control in different directions to complete different tasks. On the one hand, it realizes the supply of cutting power, and on the other hand, it realizes the cleaning and drying of tea leaves.

[0053] Among them, a sealing sleeve is provided at the bottom of the installation frame 1, and the sealing sleeve is located on the outer side of the sealing plate 15. A control button is provided at the top of the curved arm 11 to control the start and reversing of the air supply component 7. The installation head 8 includes a bottom frame 81, a threaded rod 82 and a locking cap 83. The bottom frame 81 is fixed at the bottom of the installation frame 1 and is connected to the No. 1 port 12. The threaded rod 82 is fixedly connected to the front of the bottom frame 81, and the locking cap 83 is threadedly sleeved on the outer surface of the threaded rod 82. The storage component 9 includes a storage frame 91, a connecting frame 92 and an inclined plate 93. The connecting frame 92 is fixedly connected to the top of the storage frame 91, and the inclined plate 93 is fixedly connected to the inside of the storage frame 91. The connecting frame 92 is sleeved on the outside of the bottom frame 81, and a notch is provided on the front of the connecting frame 92.

[0054] The storage assembly 9 can realize quick storage of tea leaves after picking, and can realize convenient disassembly by cooperating with the damping sleeve and locking fixation of the mounting head 8. A small hole is provided in the middle of the inclined plate 93 to prevent fallen tea leaves from being sucked out again.

[0055] A picking method of an external limb tea picking device, comprising the following picking steps:

[0056] Step 1: When picking and using, put the arm into the mounting belt 10 for mounting and fixing, hold the curved arm 11, complete the wearing, and keep the suction pump 2 started;

[0057] Step 2: The picker determines the target tea leaves to be picked, and moves his arm to drive the wearable device to approach the top of the target tea leaves, so that the picking cylinder 4 is set on the upper part of the tea leaves to be picked;

[0058] Step 3: Operate the control button on the crank arm 11 to start the air supply assembly 7, and the air pump 71 starts. Under normal conditions, the air pump 71 outputs air through the control valve 72 and the second pipe 74, and inputs air into the interior of the control assembly 6, pushing the connecting rod 63 downward, and compressing the spring 2 64. The connecting rod 63 compresses the hydraulic oil in the fixed pipe 61, so that the hydraulic pressure in the connected cutting assembly 5 increases, and the hydraulic pressure pushes the cutting knife 52 to move to the adapting groove 42, and cuts the tea leaves;

[0059] Step 4: After cutting, the cutting knife 52 seals the bottom of the picking tube 4, and at the same time, the control component 6 drives the sealing plate 15 to move downward, the installation frame 1 is opened, and the suction pump 2 sucks the tea leaves in the picking tube 4 through the installation frame 1, the second port 13, and the purge component 3. The tea leaves are sucked into the installation frame 1 and fall into the storage component 9 under the obstruction of the inclined baffle 14. Then, the air supply component 7 is closed, and the control component 6 drives the cutting component 5 to reset, the sealing plate 15 to reset, the suction of the suction pump 2 is blocked, the position of the picking tube 4 is changed, and the next group of tea leaves are picked;

[0060] Step 5: When the target tea leaves need to be cleaned, as the picking cylinder 4 is sleeved on the tea leaves, the air supply assembly 7 is started, and the control valve 72 introduces the pressurized air into the purge assembly 3, and the purge assembly 3 purges and cleans the target tea leaves downwards;

[0061] Step 6. When the storage frame 91 is full, loosen the locking cap 83, remove the damping sleeve storage assembly 9, and dump it.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An external limb tea picking device, comprising a mounting frame (1), characterized in that: A crank arm (11) and a mounting belt (10) are fixedly provided on the back of the mounting frame (1), a suction pump (2) is fixedly connected to the end face of the mounting frame (1), a purge assembly (3) and a mounting head (8) are fixedly connected to the two sides of the bottom of the mounting frame (1), a picking cylinder (4) is fixedly provided on the bottom of the purge assembly (3), a cutting assembly (5) is fixedly connected to the side of the picking cylinder (4), a control assembly (6) is fixedly provided on the top of the cutting assembly (5), an air supply assembly (7) is fixedly provided on the bottom of the mounting frame (1), the air supply assembly (7) has two air outlet ends, one air outlet end is connected to the purge assembly (3), and the other air outlet end is connected to the control assembly (6), a storage assembly (9) is sleeved and installed on the bottom of the mounting head (8), a sealing plate (15) is sleeved inside the mounting frame (1), and the sealing plate (15) is fixedly connected to one end of the control assembly (6).

2. The external limb tea picking device according to claim 1, characterized in that: The bottom of the installation frame (1) is respectively provided with a first port (12) and a second port (13); the first port (12) is connected to the installation head (8); the second port (13) is connected to the top of the purge assembly (3); a baffle (14) is fixedly provided inside the installation frame (1); the baffle (14) is located above the first port (12); the suction pump (2) sucks the air inside the picking cylinder (4) through the installation frame (1) and the purge assembly (3).

3. The external limb tea picking device according to claim 2, characterized in that: The picking cylinder (4) comprises a cylinder body (41) and an adapting groove (42); the cylinder body (41) is fixed to the bottom of the purge assembly (3); and the adapting groove (42) is arranged inside the cylinder body (41).

4. The external limb tea picking device according to claim 3, characterized in that: The purge assembly (3) comprises an inner ring (31), an outer ring (32) and an inclined hole (33); the inner ring (31) and the outer ring (32) are both fixedly connected between the cylinder (41) and the mounting frame (1); the outer ring (32) is located outside the inner ring (31), and an annular cavity is provided between the two; and the inclined hole (33) is opened outside the inner ring (31).

5. The external limb tea picking device according to claim 4, characterized in that: The cutting assembly (5) comprises a sleeve frame (51), a cutting knife (52), a positioning rod (53) and a spring (54); the sleeve frame (51) is fixed on the outer surface of the cylinder (41) and is aligned with the adapting groove (42); the cutting knife (52) is movably sleeved in the sleeve frame (51); the cutting knife (52) is adapted to the adapting groove (42); the positioning rod (53) is fixedly connected to one end of the cutting knife (52) and movably sleeved in the sleeve frame (51); one end of the spring (54) is fixed in the sleeve frame (51) and the other end is fixedly connected to the cutting knife (52).

6. The external limb tea picking device according to claim 5, characterized in that: The control assembly (6) comprises a fixed tube (61), a positioning ring (62), a connecting rod (63) and a second spring (64); the fixed tube (61) is fixedly connected to the top of the sleeve frame (51) and communicated with the interior of the sleeve frame (51); the positioning ring (62) is fixedly sleeved in the fixed tube (61); one end of the connecting rod (63) is movably sleeved in the fixed tube (61), and the other end is fixedly connected to the sealing plate (15); one end of the second spring (64) is fixedly connected to the positioning ring (62), and the other end is fixedly connected to the inner end of the connecting rod (63).

7. The external limb tea picking device according to claim 6, characterized in that: The air supply assembly (7) comprises an air pump (71), a control valve (72), a first pipe (73) and a second pipe (74); the air pump (71) is fixed to the bottom of the mounting frame (1); the control valve (72) is fixed to the air outlet end of the air pump (71); the first pipe (73) and the second pipe (74) are respectively fixed to the two air outlet ends of the control valve (72); the other end of the first pipe (73) is fixedly connected to the outer ring (32) and communicated with the heat-insulating space of the outer ring (32) and the inner ring (31); the other end of the second pipe (74) is fixedly connected to the fixed pipe (61).

8. The external limb tea picking device according to claim 7, characterized in that: A sealing sleeve is provided at the bottom of the installation frame (1), and the sealing sleeve is located on the outer side of the sealing plate (15). A control button is provided at the top of the crank arm (11) to control the start and reversal of the air supply assembly (7). The installation head (8) comprises a bottom frame (81), a threaded rod (82) and a locking cap (83). The bottom frame (81) is fixed to the bottom of the installation frame (1) and is connected to the No. 1 port (12). The threaded rod (82) is fixedly connected to the front side of the bottom frame (81), and the locking cap (83) is threadedly sleeved on the outer surface of the threaded rod (82).

9. The external limb tea picking device according to claim 8, characterized in that: The storage assembly (9) comprises a storage frame (91), a connecting frame (92) and an inclined plate (93); the connecting frame (92) is fixedly connected to the top of the storage frame (91); the inclined plate (93) is fixedly connected to the inside of the storage frame (91); the connecting frame (92) is sleeved on the outside of the bottom frame (81); and a notch is provided on the front of the connecting frame (92).

10. A tea picking method using an external limb tea picking device according to any one of claims 1 to 9, characterized in that: The picking steps include: Step 1: When picking and using, put the arm into the mounting belt (10) to fix it, hold the curved arm (11), put it on, and keep the suction pump (2) started; Step 2: The picker determines the target tea leaves to be picked, and moves his arm to drive the wearable device to approach the top of the target tea leaves, so that the picking cylinder (4) is sleeved on the upper part of the tea leaves to be picked; Step 3: operate the control button on the crank arm (11) to start the air supply assembly (7), the air pump (71) starts, and under normal conditions, the air pump (71) outputs air through the control valve (72) and the second pipe (74), and inputs air into the interior of the control assembly (6), pushing the connecting rod (63) downward, and compressing the second spring (64), and the connecting rod (63) compresses the hydraulic oil in the fixed pipe (61), so that the hydraulic pressure in the connected cutting assembly (5) increases, and the hydraulic pressure pushes the cutting knife (52) to move into the adapting groove (42), and the tea leaves are cut; Step 4: After cutting, the cutting knife (52) seals the bottom of the picking tube (4), and at the same time, the control component (6) drives the sealing plate (15) to move downward, the installation frame (1) is opened, and the suction pump (2) sucks the tea leaves in the picking tube (4) through the installation frame (1), the second port (13), and the purge component (3). The tea leaves are sucked into the installation frame (1) and fall into the storage component (9) under the obstruction of the inclined baffle (14). Then, the air supply component (7) is closed, and the control component (6) drives the cutting component (5) to reset, and the sealing plate (15) to reset, thereby blocking the suction of the suction pump (2), changing the position of the picking tube (4), and picking the next group of tea leaves; Step 5: When the target tea leaves need to be cleaned, as the picking cylinder (4) is sleeved above the tea leaves, the air supply assembly (7) is started, and the control valve (72) guides the pressurized air into the purge assembly (3), and the purge assembly (3) blows downward to clean the target tea leaves; Step 6: When the storage frame (91) is full, unscrew the locking cap (83), remove the damping sleeve storage assembly (9), and dump it.

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