Air supply mechanism of tea-leaf picker

Abstract

The air supply mechanism comprises a machine frame and a fan assembly and is characterized in that the fan assembly comprises a fan body and an air guide pipe, the air guide pipe is provided with an air guide cavity, the air guide pipe is connected to an air outlet of the fan body, an air supply opening is formed in the air guide pipe, and the machine frame comprises a first installation wall and a second installation wall. The fan assembly comprises a fan body and an air guide pipe, the fan body is rotatably mounted on the first mounting wall, the air guide pipe is rotatably mounted on the second mounting wall, the air supply outlet supplies air to the position of a leaf cutting mechanism mounted on the rack, and a locking device used for locking the air supply angle of the air supply outlet is arranged between the fan assembly and the rack. The tea leaf collecting device has the advantages that the structure is simple, the most adaptive air supply angle can be adjusted according to the sizes of different tea leaves, so that the tea leaves are prevented from being blown out of a collecting part as far as possible, and the tea loss rate is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of tea plucking equipment, in particular to an air supply mechanism of a tea plucking machine. Background Art

[0002] The history of tea planting and processing is long, and tea picking technology is an important part of tea tree cultivation technology. Traditionally, tea is picked manually, which is inefficient and has high labor costs. In order to improve picking efficiency and reduce costs, tea picking machines came into being. Tea picking machines are crop harvesting machines that pick new tender tea leaves from the top of tea trees. Tea picking machines are usually composed of a power part, an air supply part, a leaf cutting part, and a tea collection part. The power part drives the leaf cutting part to move, pick the tea leaves, and blow the picked tea leaves into the tea collection part through the air supply mechanism. At present, the basic component of the air supply mechanism of the common tea picking machines on the market is usually a fan, and the fan is basically fixed on the machine, resulting in a fixed air supply angle. In the process of picking tea, the blowing angle will affect the collection effect of the tea leaves. A poor air supply angle will cause the cut tea leaves to be blown outside the collection part, resulting in waste. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an air supply mechanism of a tea picking machine with a simple structure, which can adjust the air supply angle so as to better collect the picked tea leaves.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: A tea picking machine air supply mechanism comprises a frame and a fan assembly, the fan assembly comprises a fan body and an air guide pipe, the air guide pipe has an air guide cavity with an opening at the left end, the left end of the air guide pipe is connected to the air outlet of the fan body, the air guide pipe is provided with an air supply port connected to the air guide cavity, the frame comprises a first mounting wall and a second mounting wall which are spaced apart and arranged opposite to each other on the left and right sides, the fan body is rotatably mounted on the first mounting wall, the right end of the air guide pipe is rotatably mounted on the second mounting wall so that the air guide pipe is located between the first mounting wall and the second mounting wall, the air supply port supplies air towards the position of a leaf cutting mechanism mounted on the frame, and a locking device for locking the air supply angle of the air supply port is provided between the fan assembly and the frame.

[0005] The fan body is provided with a connection cover for rotatably connecting and installing with the first installation wall, the connection cover is arranged on the outer side of the first installation wall, the connection cover and the first installation wall are rotatably connected through the first rotating shaft, and the right end of the air guide pipe is rotatably connected with the second installation wall through the second rotating shaft. The structure is simple and the rotation connection is stable.

[0006] The right side of the connection cover is provided with a connection wall, and the locking device is provided between the connection wall and the first installation wall.

[0007] The locking device includes a locking knob, and the locking knob includes a knob head and a threaded connecting rod. The connecting wall surface is provided with a locking mounting hole that passes through left and right. The rotation of the first rotating shaft drives the locking mounting hole to change its position around the central axis of the first rotating shaft. The first mounting wall is provided with a plurality of locking columns with internal threaded locking holes that match the threaded connecting rod. One locking column corresponds to the changing position of one locking mounting hole. The threaded connecting rod passes through the locking mounting hole and is screwed into the corresponding locking column to achieve locking of the air supply angle of the air supply port. The above locking device has a simple structure, and the centers of the plurality of locking columns are located on the circumference of a concentric circle. The positions of the plurality of locking columns are designed and arranged according to the commonly used air supply angles for specific air supply use. The operations of locking and unlocking are relatively convenient, with low cost and stable locking.

[0008] The first installation wall is provided with a rotation angle marking area, and the connecting wall surface is provided with an indication arrow in the direction of the rotation angle marking area, so that the operator can adjust the air supply angle accurately according to the specific usage conditions.

[0009] The first rotating shaft is provided on the connecting wall surface protruding to the right, and the first mounting wall is correspondingly provided with a first rotating connecting hole for the first rotating shaft to be rotatably inserted and installed. The first rotating shaft is inserted into the first rotating connecting hole and can rotate in the first rotating connecting hole.

[0010] The right end of the first rotating shaft is provided with an internal thread connection hole, and a matching screw with a knob is screwed into the internal thread connection hole to realize the anti-drop positioning installation of the first rotating shaft on the first mounting wall, wherein the screw is screwed into the internal thread connection hole, and the knob on the screw is located on the right side of the first mounting wall. The stable rotation installation of the first rotating shaft on the first mounting wall is realized, and the structure is simple, the cost is low, and it is stable.

[0011] The right end of the air duct protrudes to the right and is provided with the second rotating shaft. The second mounting wall is correspondingly provided with a second rotating connecting hole for the second rotating shaft to be rotatably inserted and installed. The second rotating shaft is inserted into the second rotating connecting hole and can rotate in the second rotating connecting hole.

[0012] The right end of the second rotating shaft is provided with an internal thread connection hole, and the second rotating shaft is anti-dropping and positioned on the second mounting wall by a matching screw with a knob screwed into the internal thread connection hole, wherein the screw is screwed into the internal thread connection hole, and the knob on the screw is located on the right side of the second mounting wall. The second rotating shaft is stably rotated and mounted on the second mounting wall, and the structure is simple, the cost is low, and the installation is stable.

[0013] The fan body is driven by a driving motor, and the driving motor is arranged in the connecting cover, and the connecting cover also protects the driving motor.

[0014] The first installation wall is provided with a recessed opening, and the corresponding position of the fan body is embedded in the recessed opening, so that the overall structure is relatively neat and compact without any particularly abrupt parts.

[0015] Compared with the prior art, the advantages of the present invention are: simple structure, the fan body is rotatably connected to the first mounting wall on the frame, and the right end of the air guide pipe is rotatably connected to the second mounting wall on the frame, so that the air supply angle of the air supply outlet on the air guide pipe that blows air toward the leaf cutting mechanism is adjustable, and can be adjusted to the most suitable air supply angle according to the size of different tea leaves to avoid the tea leaves from being blown outside the collecting part as much as possible, thereby reducing the tea loss rate. After the adjustment is completed, the air supply angle is fixed by a locking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a side view structural schematic diagram of the present invention; Figure 3 It is a first cross-sectional structural schematic diagram of the present invention; Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle; Figure 5 It is a second cross-sectional structural schematic diagram of the present invention; Figure 6 for Figure 5 A schematic diagram of the enlarged structure at B in the middle; Figure 7 This is a schematic diagram of the three-dimensional structure of the present invention with the fan assembly removed. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below with reference to the accompanying drawings.

[0018] As shown in the figure, an air supply mechanism of a tea picking machine includes a frame 1 and a fan assembly, the fan assembly includes a fan body 2 and an air duct 3, the air duct 3 has an air guide cavity 31 with an opening at the left end, the left end of the air duct 3 is connected to the air outlet 21 of the fan body 2, and the air duct 3 is provided with an air supply port 32 connected to the air guide cavity 31. The frame 1 includes a first mounting wall 101 and a second mounting wall 102 which are spaced apart and opposite to each other on the left and right sides, the fan body 2 is rotatably mounted on the first mounting wall 101, and the right end of the air duct 3 is rotatably mounted on the second mounting wall 102, so that the air duct 3 is located between the first mounting wall 101 and the second mounting wall 102, and the air supply port 32 is provided to supply air to the position of the leaf cutting mechanism 4 installed on the frame 1, and a locking device for locking the air supply angle of the air supply port 32 is provided between the fan assembly and the frame 1.

[0019] In this specific embodiment, a plurality of air supply ports 32 are arranged in parallel and spaced apart along the axial direction of the air guide tube 3. A single air guide tube 3 is used to form a plurality of air ducts.

[0020] In this specific embodiment, the fan body 2 is provided with a connection cover 5 for rotatably connecting and installing with the first installation wall 101, the connection cover 5 is arranged on the outer side of the first installation wall 101, the connection cover 5 and the first installation wall 101 are rotatably connected through the first rotating shaft 6, and the right end of the air guide 3 is rotatably connected with the second installation wall 102 through the second rotating shaft 7. The structure is simple and the rotation connection is stable.

[0021] In this specific embodiment, a connecting wall 51 is provided on the right side of the connecting cover 5 , and a locking device is provided between the connecting wall 51 and the first installation wall 101 .

[0022] In this specific embodiment, the locking device includes a locking knob 8, which includes a knob head 81 and a threaded connecting rod 82. A locking installation hole 511 is provided on the connecting wall 51, which is through to the left and right. The first rotating shaft 6 rotates to drive the locking installation hole 511 to change its position around the central axis of the first rotating shaft 6. The first installation wall 101 is provided with a plurality of locking columns 9 with internal threaded locking holes 91 that match the threaded connecting rod 82. One locking column 9 corresponds to the change position of one locking installation hole 511. The threaded connecting rod 82 passes through the locking installation hole 511 and is screwed into the corresponding locking column 9 to achieve the locking of the air supply angle of the air supply port 32. The above locking device has a simple structure, and the centers of the plurality of locking columns 9 are located on the circumference of a concentric circle. The positions of the plurality of locking columns 9 are designed and arranged according to the commonly used air supply angles for specific air supply use, and are usually set to 30°, 15°, 0° and -15° according to specific use. The operation of locking and unlocking is relatively convenient, the cost is low and the locking is stable.

[0023] In this specific embodiment, a rotation angle marking area 1011 is provided on the first installation wall 101, and an indicating arrow 512 is provided on the connecting wall surface 51 in the direction of the rotation angle marking area 1011. This facilitates the operator to accurately adjust the air supply angle according to specific usage conditions.

[0024] In this specific embodiment, a first rotating shaft 6 is provided on the connecting wall surface 51 protruding to the right, and a first rotating connecting hole 1012 is correspondingly provided on the first mounting wall 101 for the first rotating shaft 6 to be rotatably inserted and installed. The first rotating shaft 6 is inserted into the first rotating connecting hole 1012 and can rotate in the first rotating connecting hole 1012.

[0025] In this specific embodiment, an internal thread connection hole 61 is provided at the right end of the first rotating shaft 6, and a matching screw rod 10 with a knob 100 is screwed into the internal thread connection hole 61 to realize the anti-drop positioning installation of the first rotating shaft 6 on the first mounting wall 101, wherein the screw rod 10 is screwed into the internal thread connection hole 61, and the knob 100 on the screw rod 10 is located at the right side of the first mounting wall 101. The first rotating shaft 6 is stably rotated and installed on the first mounting wall 101, and the structure is simple, the cost is low, and it is stable.

[0026] In this specific embodiment, the right end of the air duct 3 is protruding to the right and is provided with a second rotating shaft 7. The second mounting wall 102 is correspondingly provided with a second rotating connecting hole 1021 for the second rotating shaft 7 to be rotatably inserted and installed. The second rotating shaft 7 is inserted into the second rotating connecting hole 1021 and can rotate in the second rotating connecting hole 1021.

[0027] In this specific embodiment, an internal thread connection hole 71 is opened at the right end of the second rotating shaft 7, and a matching screw rod 10 with a knob 100 is screwed into the internal thread connection hole 71 to realize the anti-drop positioning installation of the second rotating shaft 7 on the second mounting wall 102, wherein the screw rod 10 is screwed into the internal thread connection hole 71, and the knob 100 on the screw rod 10 is located at the right side of the second mounting wall 102. The second rotating shaft 7 is stably rotated and installed on the second mounting wall 102, with a simple structure, low cost, and stability.

[0028] In this specific embodiment, the fan body 2 is driven by a driving motor 20, and the driving motor 20 is arranged in the connecting cover 5. The connecting cover 5 also protects the driving motor.

[0029] In this specific embodiment, a recessed opening 1013 is formed on the first installation wall 101, and the corresponding position of the fan body 2 is embedded in the recessed opening 1013. This makes the overall structure neat and compact without any particularly obtrusive parts.

[0030] When the air supply angle of the fan needs to be adjusted, first remove the threaded connecting rod 82 of the locking knob 8 from one of the locking columns 9. At this time, the lock is released, rotate the air duct 3, and after the air supply angle is adjusted to the right position, screw the threaded connecting rod 82 of the locking knob 8 into the corresponding locking column 9 again to re-lock the position.

[0031] The air supply angle of the air duct 3 corresponding to each locking position is different, and different air supply angles are designed for different varieties of tea, and are generally divided into four blowing angles (30° position, 15° position, 0° position and -15° position). When picking tenderer tea leaves, the angle of the air duct 3 is adjusted to a smaller angle so that the tender tea leaves will not be blown away. When picking older coarse tea leaves, the angle of the air duct 3 is adjusted to a straight angle so that the tea leaves can be directly blown into the tea collection bag.

[0032] The fan 2 adopts a powerful vortex fan blade system, which forms a plurality of air duct designs through a single air guide 3. The vortex fan blade system can adjust the air volume through electrical control, and can achieve precise wind control. Different air volumes can be selected for different varieties of tea, thereby reducing the occurrence of tea leaves not being blown into the collection bag or being blown outside during the picking process, effectively reducing tea waste.

Claims

1. An air supply mechanism of a tea picking machine, comprising a frame and a fan assembly, characterized in that The fan assembly includes a fan body and an air duct, the air duct has an air duct cavity with an opening at the left end, the left end of the air duct is connected to the air outlet of the fan body, the air duct is provided with an air supply port connected to the air duct cavity, the frame includes a first mounting wall and a second mounting wall which are spaced apart and opposite to each other on the left and right sides, the fan body is rotatably mounted on the first mounting wall, the right end of the air duct is rotatably mounted on the second mounting wall, the air duct is located between the first mounting wall and the second mounting wall, the air supply port supplies air towards the position of the blade cutting mechanism installed on the frame, and a locking device for locking the air supply angle of the air supply port is provided between the fan assembly and the frame.

2. The air supply mechanism of a tea picking machine as claimed in claim 1, characterized in that The fan body is provided with a connecting cover for rotatably connecting and installing with the first mounting wall. The connecting cover is arranged on the outer side of the first mounting wall. The connecting cover and the first mounting wall are rotatably connected via a first rotating shaft. The right end of the air duct is rotatably connected to the second mounting wall via a second rotating shaft.

3. The air supply mechanism of a tea picking machine as claimed in claim 2, characterized in that The right side of the connection cover is provided with a connection wall, and the locking device is provided between the connection wall and the first installation wall.

4. The air supply mechanism of a tea picking machine as claimed in claim 3, characterized in that The locking device includes a locking knob, which includes a knob head and a threaded connecting rod. The connecting wall is provided with a locking mounting hole that passes through the left and right sides. The rotation of the first rotating shaft drives the locking mounting hole to change its position around the central axis of the first rotating shaft. The first mounting wall is provided with a plurality of locking columns with internal threaded locking holes that match the threaded connecting rod. One locking column corresponds to the changed position of one locking mounting hole. The air supply angle of the air supply outlet is locked by the threaded connecting rod passing through the locking mounting hole and being screwed in the corresponding locking column.

5. The air supply mechanism of a tea picking machine as claimed in claim 4, characterized in that The first installation wall is provided with a rotation angle marking area, and the connecting wall surface is provided with an indication arrow in the direction of the rotation angle marking area.

6. The air supply mechanism of a tea picking machine as claimed in claim 3, characterized in that The first rotating shaft is provided on the connecting wall surface protruding to the right, and the first mounting wall is correspondingly provided with a first rotating connecting hole for the first rotating shaft to be rotatably inserted and installed. The first rotating shaft is inserted into the first rotating connecting hole and can rotate in the first rotating connecting hole.

7. The air supply mechanism of a tea picking machine as claimed in claim 2, characterized in that The right end of the air duct protrudes to the right and is provided with the second rotating shaft. The second mounting wall is correspondingly provided with a second rotating connecting hole for the second rotating shaft to be rotatably inserted and installed. The second rotating shaft is inserted into the second rotating connecting hole and can rotate in the second rotating connecting hole.

8. The air supply mechanism of a tea picking machine as claimed in claim 2, characterized in that The fan body is driven by a driving motor, and the driving motor is arranged in the connecting cover.

9. The air supply mechanism of a tea picking machine as claimed in claim 1, characterized in that The first installation wall is provided with a recessed opening, and the corresponding position of the fan body is embedded in the recessed opening.

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