Air supply mechanism of tea-leaf picker

Abstract

The utility model discloses an air supply mechanism of a tea-leaf picker, which comprises a rack 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, the air guide pipe is provided with an air supply outlet, and the rack comprises a first mounting wall and a second mounting 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 utility model relates to the technical field of tea picking equipment, in particular to a air supply mechanism of a tea picking machine. Background Art

[0002] The planting and processing of tea have a long history in China. The tea picking technology is an important link in the tea tree cultivation technology. Traditionally, manual tea picking is basically adopted, with relatively low efficiency and high labor costs. In order to improve the picking efficiency and reduce the cost at the same time, the tea picking machine came into being. The tea picking machine is a crop harvesting machine that harvests new and tender tea leaves from the top of the tea tree. The tea picking machine usually consists of a power part, an air supply part, a leaf cutting part and a tea collection part. The leaf cutting part is driven by the power part to pick the tea leaves, and the picked tea leaves are blown 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 fixedly installed on the machine, resulting in a fixed air supply angle. During the process of tea picking and collection, the blowing angle will affect the collection effect of the tea leaves. An improper 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 utility model is to provide an air supply mechanism of a tea picking machine with a simple structure, which can realize the adjustable air supply angle so as to better collect the picked tea leaves.

[0004] The technical solution adopted by the utility model to solve the above technical problem is as follows:

[0005] An air supply mechanism of a tea picking machine, comprising a frame and a fan assembly. The fan assembly includes a fan body and a duct. The duct has a wind guide cavity with an opening at the left end. The left end of the duct is connected to the air outlet of the fan body. The duct is provided with an air supply port communicating with the wind guide cavity. The frame includes a first mounting wall and a second mounting wall which are spaced left and right and opposite to each other. The fan body is rotatably mounted on the first mounting wall, and the right end of the duct is rotatably mounted on the second mounting wall, so that the duct is located between the first mounting wall and the second mounting wall. The air supply port blows air towards the position of the leaf cutting mechanism mounted on the frame. A locking device is provided between the fan assembly and the frame for locking the air supply angle of the air supply port.

[0006] A connection cover for rotatably connecting and installing with the first mounting wall is provided on the fan body. The connection cover is arranged on the outer side of the first mounting wall. The connection cover and the first mounting wall are rotatably connected by a first rotating shaft. The right end of the air duct is rotatably connected with the second mounting wall by the second rotating shaft. The structure is simple and the rotational connection is stable.

[0007] A connection wall surface is provided on the right side of the connection cover. A locking device is arranged between the connection wall surface and the first mounting wall.

[0008] The locking device includes a locking knob. The locking knob includes a knob head and a threaded connecting rod portion. A locking mounting hole penetrating through left and right is provided on the connection wall surface. 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. A plurality of locking columns with internal thread locking holes matching the threaded connecting rod portion are provided on the first mounting wall. One locking column corresponds to the changing position of one locking mounting hole. The air supply angle of the air supply port is locked by screwing the threaded connecting rod portion through the locking mounting hole and into the corresponding locking column. The above locking device has a simple structure. 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 common air supply angles for specific air supply uses. The operations of locking and unlocking are both relatively convenient, with low cost and stable locking.

[0009] A rotation angle marking area is provided on the first mounting wall. An indicating arrow is arranged on the connection wall surface in the direction towards the rotation angle marking area. It is convenient for the operator to accurately adjust the air supply angle according to the specific usage situation.

[0010] The first rotating shaft protrudes rightward on the connection wall surface. A first rotating connection hole for rotatably inserting and installing the first rotating shaft is correspondingly provided on the first mounting wall. The first rotating shaft extends into and is arranged in the first rotating connection hole and can rotate in the first rotating connection hole.

[0011] An internal thread connection hole is opened at the right end of the first rotating shaft. The anti - detachment and positioning installation of the first rotating shaft on the first mounting wall is realized by screwing a screw with a knob into the internal thread connection hole. Among them, 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. It realizes the stable rotational installation of the first rotating shaft on the first mounting wall, with a simple structure, low cost, and stability.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] Compared with the prior art, the advantages of the utility model 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 port 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

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a side view structural schematic diagram of the utility model;

[0019] Figure 3 This is a first cross-sectional structural schematic diagram of the utility model;

[0020] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 5 It is a second cross-sectional structural schematic diagram of the utility model;

[0022] Figure 6 for Figure 5Schematic enlarged structure diagram at position B in [Chinese context];

[0023] Figure 7 This is a three - dimensional structure diagram of the present utility model with the fan assembly removed. Specific embodiments

[0024] The present utility model will be further described in detail below in conjunction with the embodiments with reference to the drawings.

[0025] 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 a duct 3. The duct 3 has an air - guiding cavity 31 with an opening at the left end. The left end of the duct 3 is connected to the air outlet 21 of the fan body 2. The duct 3 is provided with an air - supply port 32 communicating with the air - guiding cavity 31. The frame 1 includes a first mounting wall 101 and a second mounting wall 102 that are spaced apart left - right and arranged opposite to each other. The fan body 2 is rotatably mounted on the first mounting wall 101, and the right end of the duct 3 is rotatably mounted on the second mounting wall 102, so that the duct 3 is located between the first mounting wall 101 and the second mounting wall 102, and the air - supply port 32 blows air towards the position of the leaf - shearing mechanism 4 mounted on the frame 1. A locking device is provided between the fan assembly and the frame 1 for locking the air - supply angle of the air - supply port 32.

[0026] In this specific embodiment, the air - supply ports 32 are multiple and arranged at intervals side - by - side along the axial direction of the duct 3. Multiple air ducts are formed by the diversion of a single duct 3.

[0027] In this specific embodiment, a connection cover 5 for rotatably connecting and mounting with the first mounting wall 101 is provided on the fan body 2. The connection cover 5 is arranged on the outer side of the first mounting wall 101. The connection cover 5 and the first mounting wall 101 are rotatably connected through a first rotating shaft 6. The right end of the duct 3 and the second mounting wall 102 are rotatably connected through a second rotating shaft 7. The structure is simple and the rotational connection is stable.

[0028] In this specific embodiment, a connection wall surface 51 is provided on the right - hand side of the connection cover 5, and a locking device is provided between the connection wall surface 51 and the first mounting wall 101.

[0029] In this specific embodiment, the locking device includes a locking knob 8. The locking knob 8 includes a knob head 81 and a threaded connecting rod portion 82. A locking installation hole 511 that penetrates from left to right is provided on the connecting wall surface 51. The rotation of the first rotating shaft 6 drives the position of the locking installation hole 511 to change around the central axis of the first rotating shaft 6. A plurality of locking posts 9 with internal thread locking holes 91 that cooperate with the threaded connecting rod portion 82 are provided on the first installation wall 101. One locking post 9 corresponds to the changing position of one locking installation hole 511. The air supply angle of the air supply port 32 is locked by screwing the threaded connecting rod portion 82 through the locking installation hole 511 and screwing it into the corresponding locking post 9. The above-mentioned locking device has a simple structure. The centers of the plurality of locking posts 9 are located on the circumference of a concentric circle. The positions of the plurality of locking posts 9 are designed and arranged according to the common air supply angles used in specific air supply applications. According to specific usage, they are usually set at the 30° position, 15° position, 0° position, and -15° positions. The operations of locking and unlocking are both relatively convenient, with low cost and stable locking.

[0030] 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 towards the rotation angle marking area 1011. This facilitates the operator to accurately adjust the air supply angle according to the specific usage situation.

[0031] In this specific embodiment, a first rotating shaft 6 protrudes rightward on the connecting wall surface 51, and a first rotating connection hole 1012 for the first rotating shaft 6 to rotatably extend into and be installed is correspondingly provided on the first installation wall 101. The first rotating shaft 6 extends into and is arranged in the first rotating connection hole 1012 and can rotate within the first rotating connection hole 1012.

[0032] In this specific embodiment, an internal thread connection hole 61 is provided at the right end of the first rotating shaft 6. The anti - detachment and positioning installation of the first rotating shaft 6 on the first installation wall 101 is achieved by screwing a screw 10 with a knob 100 that mates with it into the internal thread connection hole 61. Among them, the screw 10 is screwed into the internal thread connection hole 61, and the knob 100 on the screw 10 is located on the right side of the first installation wall 101. The stable rotational installation of the first rotating shaft 6 on the first installation wall 101 is realized, with a simple structure, low cost, and stability.

[0033] In this specific embodiment, a second rotating shaft 7 protrudes rightward at the right end of the air duct 3, and a second rotating connection hole 1021 for the second rotating shaft 7 to rotatably extend into and be installed is correspondingly provided on the second installation wall 102. The second rotating shaft 7 extends into and is arranged in the second rotating connection hole 1021 and can rotate within the second rotating connection hole 1021.

[0034] In this specific embodiment, an internally threaded connection hole 71 is provided at the right end of the second rotating shaft 7. The anti-loosening positioning installation of the second rotating shaft 7 on the second mounting wall 102 is realized by screwing a screw 10 with a knob 100 into the internally threaded connection hole 71. Among them, the screw 10 is screwed into the internally threaded connection hole 71, and the knob 100 on the screw 10 is located on the right side of the second mounting wall 102. The stable rotational installation of the second rotating shaft 7 on the second mounting wall 102 is realized, with a simple structure, low cost, and high stability.

[0035] In this specific embodiment, the fan body 2 is driven by a driving motor 20, and the driving motor 20 is arranged in the connection cover 5. The connection cover 5 also plays a role in protecting the driving motor.

[0036] In this specific embodiment, a recessed opening 1013 is recessed on the first mounting wall 101, and the corresponding position of the fan body 2 is embedded in the recessed opening 1013. This makes the overall structure relatively neat and compact without any particularly prominent parts.

[0037] When it is necessary to adjust the air supply angle of the fan, first remove the threaded connecting rod portion 82 of the locking knob 8 from one of the locking posts 9. At this time, the locking is released. Rotate the air duct 3. After the air supply angle is adjusted in place, screw the threaded connecting rod portion 82 of the locking knob 8 back into the corresponding locking post 9 to re-lock the position.

[0038] The air supply angles of the air duct 3 corresponding to each locking position are different, and different air supply angles are designed for different varieties of tea. Generally, it is divided into four blowing angles (30° position, 15° position, 0° position, and -15° position). When picking tender tea, the angle of the air duct 3 is adjusted to be smaller so that the tender tea will not be blown away. When picking older coarse tea, the air duct 3 is adjusted to be straight, and the tea can be directly blown into the tea collection bag completely.

[0039] The fan 2 adopts a powerful vortex impeller system. Through the diversion of a single air duct 3 to form a multi-channel design, the vortex impeller system can adjust the air volume through electric control, enabling precise air control. Different air volumes can be selected for different varieties of tea, thereby reducing the situation that tea cannot be blown into the collection bag or is 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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