Air guide mechanism of tea-leaf picker

Abstract

The utility model discloses an air guide mechanism of a tea-leaf picker, which comprises a rack and an air guide plate, the rack comprises a first mounting wall and a second mounting wall, a leaf cutting mechanism is arranged between the first mounting wall and the second mounting wall, and the air guide plate is arranged behind the leaf cutting mechanism in a bearing manner. The connecting shaft is arranged between the first mounting wall and the second mounting wall, the first end of the connecting shaft is rotatably mounted on the first mounting wall, the second end of the connecting shaft is rotatably arranged on the second mounting wall, and a locking device used for locking the rotating position of the air deflector is arranged between the air deflector and the rack. The air guide device has the advantages that the structure is simple, the air guide plate is rotatably arranged on the rack through the connecting shaft, the air guide angle of the air guide plate can be adjusted, the air guide angle of the air guide plate can be conveniently adjusted according to tea leaves of different varieties and specifications, and the universality of the whole machine is good.

Description

Technical Field

[0001] The utility model relates to the technical field of tea picking equipment, in particular to a wind guiding 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 part of the tea tree cultivation technology. Traditionally, tea is basically picked manually, with low efficiency and high labor cost. 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, a blowing part, a leaf shearing part and a tea collection part. The leaf shearing 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 blowing mechanism.

[0003] In order to facilitate the screening of the quality of the picked tea leaves and reduce the subsequent screening time, a corresponding wind guiding mechanism is usually arranged at the rear end of the leaf shearing part to blow the unnecessary residual leaves outside, so as to avoid the residual leaves and the tea leaves to be collected entering the tea collection part together as much as possible. The current conventional design is to set a wind guiding plate with a certain bending angle at the rear of the leaf shearing part. The wind blown by the blowing mechanism touches the wind guiding plate to form a parabola, so as to blow the unnecessary residual leaves outside. On the existing tea picking machines, the wind guiding plate is fixedly and non-removably installed on the corresponding structure. That is to say, for a tea picking machine, the parabola formed by the blowing during picking is fixed and cannot adapt to all tea varieties. It can only be used for picking fixed tea varieties, with poor versatility. For the picking of tea varieties that are not adaptable, it may increase the subsequent screening time (the residual leaves fall into the tea collection part together), or cause the usable tea leaves to be wrongly blown outside, resulting in certain losses. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a wind guiding mechanism of a tea picking machine to solve the problems existing in the prior art, realize good versatility of the tea picking machine, effectively reduce the subsequent screening time and improve the efficiency.

[0005] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0006] A wind guide mechanism of a tea picking machine comprises a frame and a wind guide plate, wherein the frame comprises a first mounting wall and a second mounting wall which are arranged opposite to each other on the left and right sides, a leaf cutting mechanism for picking tea leaves is arranged between the first mounting wall and the second mounting wall, the wind guide plate is arranged behind the leaf cutting mechanism, a connecting shaft is arranged across the wind guide plate, the connecting shaft is arranged between the first mounting wall and the second mounting wall, and the first end of the connecting shaft is rotatably mounted on the first mounting wall, and the second end of the connecting shaft is rotatably mounted on the second mounting wall, so that the wind guide plate can be rotatably mounted between the first mounting wall and the second mounting wall around the axis, and a locking device for locking the rotation position of the wind guide plate is arranged between the wind guide plate and the frame.

[0007] The front end of the air guide plate is wound and fixedly arranged on the connecting shaft, so that the air guide plate can be stably fixedly installed on the connecting shaft.

[0008] The rear end of the wind guide plate is bent upward obliquely to form a bent portion, so that the wind blowing in can form a parabola and blow the unnecessary residual leaves outside.

[0009] The locking device comprises a locking knob arranged at the outer side of the first mounting wall, the end of the first end of the connecting shaft extends out of the first mounting wall and is fixedly connected to the center of the locking knob, a locking steel ball is telescopically eccentrically arranged on the end surface of the locking knob opposite to the first mounting wall, the locking knob rotates to drive the connecting shaft to rotate, and synchronously drives the locking steel ball to change its position around the central axis of the connecting shaft, and the first mounting wall is provided with a plurality of through locking holes for the locking steel ball to be embedded and installed, one locking hole corresponds to the changing position of one locking steel ball, and the locking steel ball is embedded and arranged in one of the locking holes to achieve the locking of the rotation position of the air guide plate. The above locking device has a simple structure, and the connecting shaft is rotated by rotating the locking knob to achieve the switching of the locking steel ball from one locking position to another locking position, thereby achieving the locking of the adjustable angle of the air guide plate. The positions of the plurality of locking holes are designed and arranged according to the specific use angle, and the operation of locking and unlocking is relatively convenient, low cost and stable locking.

[0010] The centers of the plurality of locking holes are located on a circumference line of a concentric circle.

[0011] On the end face of the locking knob opposite to the first mounting wall, a concave cavity is recessed. On the inner side of the concave cavity facing the first mounting wall, a positioning post protrudes. The positioning post has a positioning cavity with an opening facing the first mounting wall. Inside the positioning cavity, a compression spring and the locking steel ball are sequentially arranged in the direction facing the first mounting wall. Through cooperation with the compression spring, telescopic movement of the locking steel ball in the positioning cavity is realized. In the locked state, the corresponding part of the locking steel ball protrudes outside the positioning cavity and is embedded in one of the locking holes, achieving stable telescopic installation of the locking steel ball on the locking knob.

[0012] A gap is provided between the end face of the positioning post opposite to the first mounting wall and the first mounting wall, and the gap is smaller than the ball diameter of the locking steel ball, ensuring that during the rotation of the locking knob, the locking steel ball will not fall off, ensuring stable overall use.

[0013] The leaf shearing mechanism includes a fixed leaf shearing plate and a movable leaf shearing plate. The fixed leaf shearing plate is fixedly arranged between the first mounting wall and the second mounting wall. The movable leaf shearing plate is movably arranged on the fixed leaf shearing plate in the left-right direction. The front end of the air deflector is closely arranged behind the rear end face of the fixed leaf shearing plate, with a simple structure and enabling the air deflector to play a stable air guiding role.

[0014] On the first mounting wall, indicating marks are provided at the positions corresponding to each of the locking holes. According to the specifications of the tea leaves, usually three locking holes are provided, corresponding to thick buds, medium buds, and thin buds respectively, facilitating the operator to accurately adjust the air guiding angle according to the specific usage situation.

[0015] Compared with the prior art, the advantages of the present utility model are as follows: The structure is simple. The air deflector is rotatably arranged on the machine frame through a connecting shaft, enabling the air guiding angle of the air deflector to be adjustable, facilitating the adjustment of the air guiding angle of the air deflector for different varieties and specifications of tea leaves. The parabola formed in cooperation with the air deflector blows the unwanted residual leaves outside, minimizing the situation where the residual leaves are collected together with the usable tea leaves into the tea collection part, facilitating the subsequent screening of the quality of the picked tea leaves, improving the subsequent screening efficiency, and at the same time making the universality of the whole machine better and effectively reducing the use cost. After the air deflector angle adjustment is completed, the position is locked through the locking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2This is a cross-sectional structural diagram of the utility model in which the air guide plate is installed on the frame;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the wind guide plate and the first installation wall in the utility model;

[0019] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 5 It is a schematic cross-sectional structure diagram of the locking knob of the utility model being locked on the first mounting wall;

[0021] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at B in the middle;

[0022] Figure 7 It is a schematic diagram of the partially exploded structure of the air guide plate and the first mounting wall in the utility model. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] As shown in the figure, an air guide mechanism of a tea picking machine includes a frame 1 and an air guide plate 2. The frame 1 includes two first mounting walls 101 and a second mounting wall 102 which are arranged opposite to each other on the left and right. A leaf cutting mechanism for picking tea leaves is arranged between the first mounting wall 101 and the second mounting wall 102. The air guide plate 2 is arranged behind the leaf cutting mechanism. A connecting shaft 21 is arranged across the air guide plate 2. The connecting shaft 21 is arranged between the first mounting wall 101 and the second mounting wall 102, and the first end of the connecting shaft 21 is rotatably mounted on the first mounting wall 101, and the second end of the connecting shaft 21 is rotatably mounted on the second mounting wall 102, so that the air guide plate 2 can be rotatably mounted between the first mounting wall 101 and the second mounting wall 102 around the axis, and a locking device for locking the rotation position of the air guide plate 2 is arranged between the air guide plate 2 and the frame 1.

[0025] In this specific implementation, the front end of the air guide plate 2 is wound and fixedly arranged on the connecting shaft 21, so that the air guide plate 2 is stably fixedly installed on the connecting shaft 21.

[0026] In this specific implementation, the rear end of the wind guide plate 2 is bent upward obliquely to form a bent portion 22. This facilitates the blowing wind to form a parabola, and can blow the unnecessary residual leaves outside.

[0027] In this specific implementation, the locking device includes a locking knob 3 disposed on the outer side of the first mounting wall 101. The end of the first end of the connecting shaft 21 extends out of the first mounting wall 101 and is fixedly connected to the center of the locking knob 3. A locking steel ball 4 is eccentrically and telescopically disposed on the end surface of the locking knob 3 opposite to the first mounting wall 101. The rotation of the locking knob 3 drives the rotation of the connecting shaft 21, and synchronously drives the locking steel ball 4 to change its position around the central axis of the connecting shaft 21. A plurality of through locking holes 1011 for embedding and installing the locking steel ball 4 are provided on the first mounting wall 101. One locking hole 1011 corresponds to the changing position of one locking steel ball 4. By embedding the locking steel ball 4 in one of the locking holes 1011, the rotation position of the air deflector 2 is locked. The above locking device has a simple structure. By rotating the locking knob 3 to drive the rotation of the connecting shaft 21, the locking steel ball 4 is switched from one locking position to another locking position, thereby realizing the locking of the adjustment angle of the air deflector 2. The positions of the plurality of locking holes 1011 are designed and arranged according to the specific use angles. The operations of locking and unlocking are both relatively convenient, with low cost and stable locking.

[0028] In this specific implementation, the centers of the plurality of locking holes 1011 are located on the circumference of a concentric circle.

[0029] In this specific implementation, a concave cavity 31 is recessed on the end surface of the locking knob 3 opposite to the first mounting wall 101. A positioning post 32 is protrudingly provided in the concave cavity 31 in the direction towards the first mounting wall 101. A positioning cavity 321 with an opening in the direction towards the first mounting wall 101 is provided inside the positioning post 32. A compression spring 5 and a locking steel ball 4 are sequentially provided in the positioning cavity 321 in the direction towards the first mounting wall 101. The telescopic movement of the locking steel ball 4 in the positioning cavity 321 is realized by cooperating with the compression spring 5. In the locked state, the corresponding part of the locking steel ball 4 extends out of the positioning cavity 321 and is embedded in one of the locking holes 1011. The stable telescopic installation of the locking steel ball 4 on the locking knob 3 is realized.

[0030] In this specific implementation, a gap 6 is provided between the end surface of the positioning post 32 opposite to the first mounting wall 101 and the first mounting wall 101. The gap 6 is smaller than the ball diameter of the locking steel ball 4. Ensure that during the rotation of the locking knob 3, the locking steel ball 4 will not fall off, ensuring the stable use of the whole.

[0031] In this specific implementation, the leaf shearing mechanism includes a fixed leaf shearing plate 7 and a movable leaf shearing plate 8. The fixed leaf shearing plate 7 is fixedly disposed between the first mounting wall 101 and the second mounting wall 102. The movable leaf shearing plate 8 is movably disposed on the fixed leaf shearing plate 7 in the left-right direction. The front end of the air deflector 2 is closely disposed behind the rear end surface of the fixed leaf shearing plate 7. The structure is simple, and the air deflector 2 realizes a stable air guiding function.

[0032] In this specific implementation, an indication mark 9 is provided at the position of each locking hole 1011 on the first mounting wall 101. According to the specifications of tea leaves, usually three locking holes 1011 are provided, corresponding to thick buds, medium buds, and thin buds respectively, facilitating the operator to accurately adjust the air guiding angle according to the specific usage situation.

[0033] During specific use, select the air guiding angle of the air guiding plate 2 according to the specifications of the tea leaves, rotate the locking knob 3, drive the connecting shaft 21 to rotate through the locking knob 3, so that the locking steel ball 4 disengages from one of the locking holes 1011 and enters another locking hole 1011 corresponding to the adjustment to achieve locking, and the operation is simple and convenient.

Claims

1. An air guide mechanism of a tea picking machine, comprising a frame and an air guide plate, wherein the frame comprises a first mounting wall and a second mounting wall which are arranged opposite to each other on the left and right sides, a leaf cutting mechanism for picking tea leaves is arranged between the first mounting wall and the second mounting wall, and the air guide plate is arranged behind the leaf cutting mechanism, characterized in that A connecting shaft is arranged across the air guide plate, and the connecting shaft is arranged between the first mounting wall and the second mounting wall. The first end of the connecting shaft is rotatably mounted on the first mounting wall, and the second end of the connecting shaft is rotatably mounted on the second mounting wall, so that the air guide plate can be rotatably mounted between the first mounting wall and the second mounting wall around the axis, and a locking device for locking the rotational position of the air guide plate is arranged between the air guide plate and the frame.

2. The air guide mechanism of a tea picking machine as claimed in claim 1, characterized in that The front end of the air guide plate is wound and fixedly arranged on the connecting shaft.

3. The air guide mechanism of a tea picking machine according to claim 1, characterized in that The rear end of the air guide plate is bent obliquely upward to form a bent portion.

4. The air guide mechanism of a tea picking machine according to claim 1, characterized in that The locking device includes a locking knob arranged on the outer side of the first mounting wall, the end of the first end of the connecting shaft extends out of the first mounting wall and is fixedly connected to the center of the locking knob, and a locking steel ball is telescopically and eccentrically arranged on the end surface of the locking knob opposite to the first mounting wall. The rotation of the locking knob drives the connecting shaft to rotate, and synchronously drives the locking steel ball to change its position around the central axis of the connecting shaft. The first mounting wall is provided with a plurality of through locking holes for the locking steel balls to be embedded and installed, and one locking hole corresponds to the changing position of one locking steel ball. The locking steel ball is embedded in one of the locking holes to achieve the locking of the rotational position of the air guide plate.

5. The air guide mechanism of a tea picking machine as claimed in claim 4, characterized in that The centers of the plurality of locking holes are located on a circumference line of a concentric circle.

6. The air guide mechanism of a tea picking machine as claimed in claim 4, characterized in that A concave cavity is recessed on the end surface of the locking knob opposite to the first mounting wall, a positioning column is protruding in the concave cavity toward the direction of the first mounting wall, the positioning column has a positioning cavity opening in the direction of the first mounting wall, a compression spring and a locking steel ball are sequentially arranged in the positioning cavity in the direction toward the first mounting wall, and the locking steel ball can be telescopically moved in the positioning cavity by cooperating with the compression spring. In the locked state, the corresponding part of the locking steel ball extends out of the positioning cavity and is embedded in one of the locking holes.

7. The air guide mechanism of a tea picking machine as claimed in claim 6, characterized in that A gap is provided between the end surface of the positioning column opposite to the first mounting wall and the first mounting wall, and the gap is smaller than the ball diameter of the locking steel ball.

8. The air guide mechanism of a tea picking machine according to claim 1, characterized in that The blade cutting mechanism includes a fixed blade cutting plate and a movable blade cutting plate. The fixed blade cutting plate is fixedly arranged between the first mounting wall and the second mounting wall. The movable blade cutting plate can be movably arranged on the fixed blade cutting plate left and right. The front end of the air guide plate is arranged close to the rear of the rear end surface of the fixed blade cutting plate.

9. The air guide mechanism of a tea picking machine as claimed in claim 4, characterized in that An indication mark is arranged on the first installation wall at the position of each locking hole.

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