Negative pressure tea-leaf picker
By utilizing the air duct structure of the negative pressure tea harvester, the problem of uneven tea collection and suspended transport in existing tea harvesters is solved by adsorbing tea leaves in the negative pressure area, thus achieving efficient collection and transport of tea leaves.
Patent Information
- Application Number
- CN202423111548.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-17
AI Technical Summary
The existing tea-picking machine's blower mechanism has problems with uneven tea leaf collection after shearing and disordered tea leaf suspension and conveying within the air duct, making it difficult to effectively collect some tea leaves.
The negative pressure tea picking machine adopts a duct structure that creates a negative pressure area through the air outlet. The pressure difference between the inside and outside draws the tea leaves into the duct and transports them through the duct, preventing the tea leaves from spinning or falling out of the duct.
This improves the effectiveness of tea collection, ensuring that tea leaves smoothly enter the air duct and are quickly transported to the collection device, thus avoiding the accumulation and falling of tea leaves in the air duct.
Smart Images

Figure CN223626436U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tea picking machine technical field, especially a kind of negative pressure tea picking machine. BACKGROUND
[0002] Walking type tea picking machine is a kind of efficient tea picking machinery, by configuring transverse shearing cutter to shear tea, then by blowing mechanism above cutter tea is blown to air duct, and tea is collected to collection box by air duct.
[0003] The tea after shearing of above-mentioned tea picking machine is transported and collected by the form of fan blowing, in the process, the following problems still have not been effectively solved:
[0004] 1, blowing mechanism is arranged with multiple blowholes, but it is still not uniform when sweeping tea after shearing, so that tea in some areas is difficult to be quickly blown to air duct, cannot be effectively collected;
[0005] 2, blowing mechanism when sweeping, due to large wind force, and tea is light, leading to part of tea in air duct to turn and suspend, transport is more chaotic, and part of tea after suspension is prone to accumulate in the junction of air duct mouth and blowhole. INVENTION CONTENTS
[0006] The utility model provides a kind of negative pressure tea picking machine in view of the deficiency in the prior art.
[0007] To solve the above technical problems, the utility model is solved by the following technical solutions: a kind of negative pressure tea picking machine, including
[0008] Air duct, for transporting tea after shearing;
[0009] Air outlet, be located at the bottom of air duct, for guiding wind to blow into air duct, and form negative pressure area near air outlet;And
[0010] Feed inlet, be located at the side of air outlet, for tea to enter and be inhaled into air duct by internal and external pressure difference by negative pressure area, then along air duct to transport.
[0011] In the above scheme, preferably, the air outlet includes the first baffle and the second baffle arranged on both sides, the second baffle and the bottom of the air duct form an air inlet;
[0012] Wind is blown to the first baffle after passing through air inlet, and then sent into air duct, and negative pressure area is formed near air outlet.
[0013] In the above scheme, preferably, the first baffle is located at the side of the feed inlet, and the lower end is connected with the bottom of the air duct, and the upper end extends to the side of the second baffle, to guide the wind.
[0014] Preferably, in the above scheme, the air duct is inclined upward from the bottom to the side away from the feeding port.
[0015] Preferably, in the above scheme, the air duct comprises a side plate for the tea leaves to contact and transport, and the upper end of the second baffle is connected with the side plate, and the included angle between the side plate and the second baffle in the air duct is obtuse.
[0016] Preferably, in the above scheme, the upper end surface of the first baffle is located above the air inlet.
[0017] Preferably, in the above scheme, the air duct comprises a feeding channel, the air outlet is arranged at one end of the feeding channel in the air duct, and the other end of the feeding channel is connected with the fan.
[0018] Preferably, in the above scheme, the lower end of the first baffle extends transversely away from the feeding port and then is inclined upward to form a feeding channel with the end surface of the second baffle away from the feeding port.
[0019] The end surface of the second baffle close to the lower end of the feeding port forms an air outlet with the end surface of the first baffle away from the feeding port.
[0020] Preferably, in the above scheme, the angle between the air outlet and the vertical plane is 5°.
[0021] Preferably, in the above scheme, the angle between the second baffle and the vertical plane is 30°.
[0022] The beneficial effects of the present application are as follows: the tea picking machine air duct structure for negative pressure adsorption of tea leaves is provided, and the negative pressure is formed at the position where the tea leaves enter the air duct, the tea leaves close to the negative pressure area are adsorbed, and then are transported through the air duct, so that the effectiveness of tea leaf collection is greatly improved. At the same time, the tea leaves can effectively enter the air duct through the adsorption mode, so that the condition of turning around in the air duct or at the air duct opening is avoided, thereby preventing the tea leaves from falling or blowing out of the air duct. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is a front view structural schematic diagram of the present application.
[0024] Figure 2 It is a front view structural schematic diagram of the present application. Figure 1
[0025] Figure 3 It is an enlarged structural schematic diagram of the lower end of the air duct of the present application. DETAILED DESCRIPTION
[0026] The present application will be further described in detail below in combination with the drawings and specific embodiments:
[0027] Reference is made to Figures 1-3 .
[0028] A negative pressure tea picking machine, comprising an air duct 1, as shown in the drawings, the air duct 1 is inclinedly arranged with a vertical plane, the included angle between the vertical direction of the air duct 1 and the vertical plane is preferably 8°, on this basis, the angle can be adjusted within a certain range, including but not limited to 0-180°. The specific installation position of the air duct 1 on the tea picking machine is adjusted adaptively. Figures 1-2
[0029] The lower end of the air duct 1 is provided with a feeding port 3, the air duct 1 is inclined upward from the lower end to the side away from the feeding port 3, and the feeding port 3 is arranged on the side of the air duct 1 facing the tea entering direction, as shown in the drawings. Figure 2
[0030] The upper end of the air duct 1 is connected with a collecting device through a connecting pipe, including but not limited to a collecting frame, a collecting bag and other containers for collecting tea.
[0031] As shown in the drawings, the bottom of the air duct 1 is provided with an air outlet 2, the air outlet 2 guides the air into the air duct 1, and forms a negative pressure area near the air outlet 2, so that the tea near the air outlet 2 is adsorbed by the negative pressure area; specifically, the air outlet 2 comprises first and second baffles 201 and 202 arranged on both sides, the first baffle 201 is arranged on the side close to the feeding port 3, and the second baffle 202 is arranged on the left side of the first baffle 201. Figure 1 Figure 3
[0032] As shown in the drawings, the upper end of the second baffle 202 is fixed or gap-connected with the left side wall of the air duct 1, and the lower end is arranged with a gap between the lower end wall of the air duct 1, the gap forms an air inlet 203, the air blows to the first baffle 201 through the air inlet 203, and then blows into the air duct 1 through the guidance of the first baffle 201. Figure 3
[0033] The upper end surface of the first baffle 201 is above the air inlet 203, so that the wind flow through the air inlet 203 is in full contact with the first baffle 201 and is guided, the lower end of the first baffle 201 is fixed with the air duct 1, and the upper end is inclined upward to the side of the second baffle 202, forming an inclined baffle, so that after the first baffle 201 contacts the wind and rain, it is blown to the surface near the inlet 3 of the second baffle 202 and flows along the surface into the air duct 1, at the same time, a negative pressure is formed at the connection area of the air outlet 2 and the second baffle 202, and the tea leaves near the air outlet 2 are adsorbed by the area and then quickly enter the cross section of the lower end of the air duct 1, and are quickly transported in the air duct 1 by the wind force flowing along the surface of the second baffle 202, realizing the adsorption of tea leaves at the inlet 3 of the lower end of the air duct 1 and the transportation in the air duct 1.
[0034] The air duct 1 includes a side plate 101 for tea leaves to contact and transport, the upper end of the second baffle 202 is connected with the side plate 101, and a certain gap can be provided between the upper end of the second baffle 202 and the inner surface of the side plate 101, or welding or abutting connection can be adopted, which is not limited herein, and the included angle between the side plate 101 and the second baffle 202 inside the air duct 1 is obtuse, of course, the second baffle 202 can also be part of the side plate 101, and the wind flows into the air duct 1 along the surface of the second baffle 202 after passing through the air outlet 2.
[0035] The negative pressure tea picking machine further includes a air supply channel 4, the air outlet 2 is arranged at one end of the air supply channel 4 arranged in the air duct 1, and is close to the inlet 3, and the other end of the air supply channel 4 away from the inlet 3 is connected with the air blower, that is, the air blower sends the flowing wind to the air outlet 2 through the air supply channel 4; the lower end of the first baffle 201 extends transversely away from the inlet 3 and then inclines upward, and forms the air supply channel 4 with the end surface of the side of the second baffle 202 away from the inlet 3; the lower end surface of the side of the second baffle 202 close to the inlet 3 forms the air outlet 2 with the side of the first baffle 201 away from the inlet 3.
[0036] The air supply channel 4 is fixed with the lower end of the air duct 1 as a whole, and the air supply flow direction is indicated by “→” in the figure. Figure 3 The angle between the air outlet 2 and the vertical surface is 5°, that is, the angle of the first baffle 201 inclined to the side of the second baffle 202 is 5°, which is the preferred angle in this embodiment, and can be further selected within the range of the angle, including but not limited to the inclination angle within 0-90°.
[0037] The angle between the second baffle 202 and the vertical surface is 30°, which is the preferred angle, and can be adaptively adjusted according to the inclination angle of the air duct 1 in the tea picking machine, and is matched with the angle of the first baffle 202, including but not limited to the inclination angle within 0-90°.
[0038] The method using the negative pressure tea picking machine as above: the air flow is blown into the air supply channel 4 by the fan, and is blown to the first baffle 201 through the air inlet 203, and is blown out from the air outlet 2, the first baffle 201 guides the air flow along the inclination angle of the baffle, and blows to the surface of the second baffle 202 and blows into the air duct 1 along the inclined surface of the second baffle 202; when the air flow is blown out from the air outlet 2, a negative pressure is formed in the vicinity of the air outlet, the tea leaves enter from the feeding port 3 and are adsorbed by the negative pressure area, then contact the second baffle 202, are blown into the air duct 1 by the air flow flowing on the surface of the second baffle 202, and then are sent into the collecting device by the air duct 1 to be collected.
[0039] The above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A negative pressure tea plucker characterized in that: The utility model relates to a tea cutting and conveying device, which comprises a wind channel (1) for conveying the cut tea leaves, an air outlet (2) arranged at the bottom of the wind channel (1) for guiding the air to blow into the wind channel (1) and forming a negative pressure area near the air outlet (2), and a feeding port (3) arranged at one side of the air outlet (2) for the tea leaves to enter and be sucked into the wind channel (1) by the negative pressure area through the pressure difference between the inside and outside, and then be conveyed along the wind channel (1). The air outlet (2) comprises first and second baffles (201, 202) arranged at both sides, and the second baffle (202) and the bottom of the wind channel (1) form an air inlet (203). The air blows onto the first baffle (201) through the air inlet (203) and is then sent into the wind channel (1) to form a negative pressure area near the air outlet (2). The first baffle (201) is arranged at one side of the feeding port (3) and is connected to the bottom of the wind channel (1) at the lower end and extends obliquely to the side of the second baffle (202) at the upper end to guide the air. The wind channel (1) is obliquely upward from the bottom to the side away from the feeding port (3).
2. A negative pressure tea plucker as claimed in claim 1 wherein: The wind channel (1) comprises a side plate (101) for the tea leaves to contact and be conveyed, the upper end of the second baffle (202) is connected to the side plate (101), and the included angle between the side plate (101) and the second baffle (202) in the wind channel (1) is obtuse. The upper end surface of the first baffle (201) is located above the air inlet (203).
3. A negative pressure tea plucker as claimed in claim 2 wherein: The utility model further comprises a blowing channel (4), the air outlet (2) is arranged at one end of the blowing channel (4) arranged in the wind channel (1), and the other end of the blowing channel (4) is connected to the air blower.
4. A negative pressure tea plucker as claimed in claim 1 wherein: The lower end of the first baffle (201) extends transversely away from the feeding port (3) and then obliquely upward to form the blowing channel (4) with the end surface of the second baffle (202) away from the feeding port (3); 5. A negative pressure tea plucker as claimed in claim 2 wherein: The end surface of the second baffle (202) close to the lower end of the feeding port (3) forms the air outlet (2) with the end surface of the first baffle (201) away from the feeding port (3).
6. A negative pressure tea plucker as claimed in claim 2 wherein: The angle between the air outlet (2) and the vertical plane is 5°.
7. A negative pressure tea plucker as claimed in claim 1 wherein: The angle between the second baffle (202) and the vertical plane is 30°.
8. A negative pressure tea plucker as claimed in claim 2 wherein: 9. A negative pressure tea plucker as claimed in any one of claims 2 to 8, wherein: 10. A negative pressure tea plucker as claimed in claim 2 wherein: