A pre-wetting mechanism for jasmine tea tea blank

CN224819441UActive Publication Date: 2026-10-09TIBET ZANGZHIMI AGRICULTURAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522482431.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-24
Publication Date
2026-10-09
Estimated Expiration
2035-11-24

AI Technical Summary

Technical Problem

[0004]针对现有技术的不足,本实用新型提供了一种用于茉莉花茶茶坯的预湿处理机构,解决了现有大多茉莉花茶坯常通过静态喷淋,表层茶坯易吸收过量水分导致结块,内部茶坯则难以接触水雾,后续窨制时吸香能力差异大,导致茶叶香气不均的问题

Benefits of technology

1、本实用新型中,螺旋叶转动实现茶坯的翻动输送,使茶坯始终处于松散状态,配合正上方等间距喷头的水雾喷洒,让茶坯都能充分接触水雾,精准控制茶坯预湿含水率,为后续窨制时高效吸香奠定基础。

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Abstract

The utility model relates to the technical field of tea blank premoistening, and disclose a kind of premoistening treatment mechanism for jasmine tea blank, including guide chute, the surface of guide chute is provided with pretreatment component, the pretreatment component includes spiral blade, the spiral blade rotation is installed in the inside of guide chute, for turning over and conveying jasmine tea blank, the both sides of guide chute are fixedly connected with five equally spaced legs, wherein two groups of opposite the leg surface is fixedly connected with support, the inside of support is installed with water guide pipe, the surface of water guide pipe is installed with multiple equally spaced spray head, the spray head is located directly above spiral blade. In the utility model, spiral blade rotation realizes the turning over and conveying of tea blank, so that tea blank is always in loose state, cooperate the water mist spraying of equally spaced spray head directly above, so that tea blank can all be fully contacted with water mist, accurately control tea blank premoistening moisture content, lay foundation for efficient fragrance absorption when subsequent scenting.
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Description

Technical Field

[0001] This utility model relates to the field of tea pre-wetting technology, specifically a pre-wetting treatment mechanism for jasmine tea leaves. Background Technology

[0002] Jasmine tea base is the core base tea in the jasmine tea scenting process. It refers to raw tea or refined tea that has been processed through specific primary and secondary processing techniques and has excellent aroma absorption capabilities. Jasmine tea base often requires pre-wetting treatment.

[0003] Currently, most jasmine tea leaves are treated with static spraying. The surface tea leaves easily absorb excessive moisture, causing clumping, while the inner tea leaves have difficulty contacting the water mist. This results in significant differences in the ability to absorb aroma during subsequent scenting, leading to uneven tea aroma. To address this, we propose a pre-humidification treatment mechanism for jasmine tea leaves. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pre-wetting treatment mechanism for jasmine tea leaves, which solves the problem that most existing jasmine tea leaves are often treated by static spraying, resulting in the surface tea leaves absorbing excessive moisture and clumping, while the inner tea leaves have difficulty contacting the water mist, leading to large differences in aroma absorption capacity during subsequent scenting and uneven aroma of the tea.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pre-wetting treatment mechanism for jasmine tea leaves, comprising a guide trough, a pre-treatment component on the surface of the guide trough, the pre-treatment component including a spiral blade, the spiral blade being rotatably installed inside the guide trough for turning and conveying the jasmine tea leaves, five equally spaced support legs fixedly connected to both sides of the guide trough, with brackets fixedly connected to the surfaces of two sets of opposing support legs, a water guide pipe installed inside the bracket, and multiple equally spaced nozzles installed on the surface of the water guide pipe, the nozzles being located directly above the spiral blades for spraying water mist onto the tea leaves, and drainage holes provided on the lower surface of the guide trough. The rotation of the spiral blades turns and conveys the tea leaves, keeping them in a loose state. Combined with the water mist spraying from the equally spaced nozzles above, the tea leaves can fully contact the water mist, accurately controlling the pre-wetting moisture content of the tea leaves, laying the foundation for efficient aroma absorption during subsequent scenting.

[0006] Furthermore, a drive motor is installed on one side of the guide trough, the drive end of the drive motor passes through the guide trough, and the drive end of the drive motor is connected to the shaft of the spiral blade.

[0007] Furthermore, a water supply pipe is installed on one side of the water guide pipe, and the water supply pipe is connected to the nozzle through the water guide pipe. The spiral blade turning and water mist spraying are both designed to be gentle to avoid the tea leaves breaking and producing fragments. There is no violent collision during the feeding and conveying process, which preserves the integrity of the tea leaves to the greatest extent, reduces material loss, and ensures the consistency of the quality of jasmine tea in subsequent processing.

[0008] Furthermore, the upper surface of the feed chute is equipped with an inclined side plate, one end of which is fixedly connected to a hopper. The arc-shaped design at the bottom of the feed chute is precisely matched with the spiral blades. Combined with the stable support of the two side legs, there is no shaking or jamming during the conveying process. The tea cakes are pushed smoothly without accumulation. The combination of the inclined side plate and the hopper guides the material to feed accurately, avoiding spillage and loss. It can meet the continuous feeding needs of large-scale jasmine tea production and improve processing efficiency.

[0009] Furthermore, the lower surface of the feed chute is equipped with a stabilizing component for cleaning up accumulated water. The equipment has a simple structure without complex and redundant structures. The drive motor, nozzle, air jet cover and other components are functionally independent and easy to maintain. The air jet cover is quickly reset by a pull block and a compression spring. The operation can be completed without professional tools, reducing manual maintenance costs and the operating threshold.

[0010] Furthermore, the stabilizing component includes a mounting bracket, which is fixedly connected to the lower surface of the feed trough. A sliding sleeve is slidably connected to the mounting bracket, and an air jet hood is fixedly connected to one side of the sliding sleeve. The air jet hood has the same curvature as the bottom of the feed trough, and an air inlet pipe is installed on one side of the air jet hood. The drain hole can quickly drain excess water to prevent the tea leaves from soaking and deteriorating. When water accumulates or becomes blocked, the air jet hood can quickly clear the drain hole and push the accumulated water back onto the tea leaves, preventing water waste and replenishing the local moisture of the tea leaves.

[0011] Furthermore, an arc-shaped guide rod is fixedly connected to the inner wall of the mounting bracket, the sliding sleeve slides on the surface of the guide rod, a compression spring is fixedly connected to one side of the sliding sleeve, the compression spring is sleeved on the guide rod, the end of the compression spring away from the sliding sleeve is fixedly connected to the inner wall of the mounting bracket, and a pull block is fixedly connected to the surface of the sliding sleeve.

[0012] In summary, the technical effects and advantages of this utility model are as follows: 1. In this utility model, the rotation of the spiral blades realizes the turning and conveying of the tea blanks, keeping the tea blanks in a loose state. Combined with the water mist spraying from the equally spaced nozzles directly above, the tea blanks can fully contact the water mist, accurately control the pre-wetting moisture content of the tea blanks, and lay the foundation for efficient aroma absorption during the subsequent scenting process.

[0013] 2. In this utility model, the drainage hole can quickly drain excess water to prevent the tea cake from soaking and deteriorating. When water accumulates or becomes blocked, the air impact of the jet nozzle can quickly clear the drainage hole and push the accumulated water back onto the tea cake, thus avoiding water waste and replenishing the local moisture of the tea cake.

[0014] 3. In this utility model, the spiral blade turning and water mist spraying are both designed to be gentle, avoiding the breakage of tea leaves and the generation of fragments. There is no violent collision during the feeding and conveying process, which preserves the integrity of the tea leaves to the greatest extent, reduces material loss, and ensures the consistency of quality in subsequent processing of jasmine tea. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a pre-wetting treatment mechanism for jasmine tea blanks according to the present invention. Figure 2 This is a top-view structural schematic diagram of a pre-wetting treatment mechanism for jasmine tea blanks according to the present invention; Figure 3 This utility model relates to a pre-wetting treatment mechanism for jasmine tea leaves. Figure 2 A schematic diagram of the structure at point A; Figure 4 This is a side view of the pre-wetting treatment mechanism for jasmine tea blanks according to the present invention. Figure 5 This utility model relates to a pre-wetting treatment mechanism for jasmine tea leaves. Figure 4 A schematic diagram of the structure at point B.

[0016] In the diagram: 1. Feed chute; 2. Pretreatment assembly; 21. Drive motor; 22. Hopper; 23. Water supply pipe; 24. Bracket; 25. Side plate; 26. Support leg; 27. Drain hole; 28. Water guide pipe; 29. ​​Nozzle; 210. Spiral blade; 3. Stabilizing assembly; 31. Mounting bracket; 32. Sliding sleeve; 33. Guide rod; 34. Compression spring; 35. Pull block; 36. Jet hood; 37. Air inlet pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] refer to Figures 1-5The diagram illustrates a pre-wetting treatment mechanism for jasmine tea leaves, comprising a guide trough 1. A pre-treatment component 2 is mounted on the surface of the guide trough 1, including a spiral blade 210 rotatably mounted inside the guide trough 1 for turning and conveying the jasmine tea leaves. Five equally spaced support legs 26 are fixedly connected to both sides of the guide trough 1. A bracket 24 is fixedly connected to the surface of two opposing support legs 26. A water guide pipe 28 is installed inside the bracket 24, and multiple equally spaced nozzles 29 are mounted on the surface of the water guide pipe 28. The nozzles 29 are located directly above the spiral blade 210 and are used to spray water mist onto the tea leaves. A drainage hole 27 is provided on the lower surface of the guide trough 1. The rotation of the spiral blade 210 turns and conveys the tea leaves, keeping them in a loose state. Combined with the water mist spraying from the equally spaced nozzles 29 above, the tea leaves can fully contact the water mist, precisely controlling the pre-wetting moisture content of the tea leaves and laying the foundation for efficient aroma absorption during subsequent scenting.

[0019] A drive motor 21 is installed on one side of the guide trough 1. The drive end of the drive motor 21 passes through the guide trough 1 and is connected to the shaft of the spiral blade 210.

[0020] Among them, a water supply pipe 23 is installed on one side of the water guide pipe 28. The water supply pipe 23 is connected to the nozzle 29 through the water guide pipe 28. The spiral blade 210 is designed to turn and spray water mist gently to avoid the tea leaves from breaking and producing fragments. There is no violent collision during the feeding and conveying process, so as to preserve the integrity of the tea leaves to the greatest extent, reduce material loss, and ensure the consistency of the quality of jasmine tea in subsequent processing.

[0021] The upper surface of the feed chute 1 is equipped with an inclined side plate 25, and one end of the side plate 25 is fixedly connected to a hopper 22. The arc-shaped design at the bottom of the feed chute 1 is precisely matched with the spiral blade 210. With the stable support of the two side legs 26, there is no shaking or jamming during the conveying process. The tea cake is pushed smoothly without accumulation. The combination of the inclined side plate 25 and the hopper 22 guides the material to feed accurately, avoiding spillage and loss. It can meet the continuous feeding needs of large-scale jasmine tea production and improve processing efficiency.

[0022] Among them, the lower surface of the feed chute 1 is equipped with a stabilizing component 3 for cleaning up accumulated water. The equipment has a simple structure without complex and redundant structures. The drive motor 21, nozzle 29, air jet cover 36 and other components are independent and easy to maintain. The air jet cover 36 can be quickly reset by the pull block 35 and the compression spring 34. The operation can be completed without professional tools, reducing the cost of manual maintenance and the threshold of operation.

[0023] The stabilizing component 3 includes a mounting frame 31, which is fixedly connected to the lower surface of the guide trough 1. A sliding sleeve 32 is slidably connected to the mounting frame 31. An air jet hood 36 is fixedly connected to one side of the sliding sleeve 32. The arc of the air jet hood 36 is consistent with the bottom of the guide trough 1. An air inlet pipe 37 is installed on one side of the air jet hood 36. The drain hole 27 can quickly drain excess water to prevent the tea leaves from soaking and deteriorating. When water accumulates or becomes blocked, the air impact of the air jet hood 36 can quickly clear the drain hole 27 and push the accumulated water back onto the tea leaves, avoiding water waste and replenishing the local moisture of the tea leaves.

[0024] The inner wall of the mounting bracket 31 is fixedly connected to an arc-shaped guide rod 33. The sliding sleeve 32 slides on the surface of the guide rod 33. A compression spring 34 is fixedly connected to one side of the sliding sleeve 32. The compression spring 34 is sleeved on the guide rod 33. The end of the compression spring 34 away from the sliding sleeve 32 is fixedly connected to the inner wall of the mounting bracket 31. A pull block 35 is fixedly connected to the surface of the sliding sleeve 32.

[0025] The working principle of this utility model is as follows: the jasmine tea cake to be pre-wetted is fed into the hopper 22, and the inclined side plate 25 plays a guiding role to prevent the tea cake from spilling and ensure that the material enters the guide trough 1 accurately. The bottom of the guide trough 1 is designed to be arc-shaped, which is compatible with the shape of the spiral blade 210, laying a structural foundation for subsequent stable conveying. Start the drive motor 21 on one side of the guide chute 1. The drive end of the motor drives the spiral blade 210 to rotate in the guide chute 1. During the rotation of the spiral blade 210, the tea blank is pushed forward and conveyed. The blade flipping action keeps the tea blank in a loose state, avoiding material stacking and clumping, and creating conditions for uniform pre-wetting. The support legs 26 on both sides of the guide chute 1 provide stable support to ensure that the mechanism does not shake during the conveying process. Water supply pipe 23 delivers water to water supply pipe 28. Spray nozzles 29 arranged at equal intervals on the surface of water supply pipe 28 spray water mist synchronously. Spray nozzles 29 are located directly above spiral blade 210 and can directly act on the tea blanks during the turning process. Spiral blade 210 continuously turns the tea blanks to ensure full contact with water mist, achieving all-round uniform pre-wetting and avoiding local dry cores or over-wetting. Excess water accumulated during the pre-wetting process flows out naturally through the drainage holes 27 on the lower surface of the feed trough 1, initially controlling the moisture content of the tea blanks. When water accumulates in the drain hole 27 and drainage is obstructed, connect the air inlet pipe 37 to the external air supply device, pull down the pull block 35, and the pull block 35 drives the sliding sleeve 32 to slide along the arc-shaped guide rod 33 on the inner wall of the mounting bracket 31 until the air jet cover 36 is aligned with the drain hole 27 at the bottom of the guide trough 1. The external air supply device supplies gas to the air jet cover 36 through the air inlet pipe 37. The gas impacts the drain hole 27 through the air jet cover 36, clearing the blocked drain hole 27 on one hand, and splashing some of the accumulated water back onto the tea cake above on the other hand, avoiding water waste and replenishing the humidity of the local tea cake. After pre-humidification is completed, turn off the external air supply device, release the pull block 35, and the compression spring 34 resets, driving the sliding sleeve 32 and the air jet cover 36 back to their initial positions, completing one pre-humidification cycle.

[0026] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pre-wetting treatment mechanism for jasmine tea leaves, comprising a feed trough (1), characterized in that: The surface of the feed trough (1) is provided with a pretreatment component (2), which includes a spiral blade (210). The spiral blade (210) is rotatably installed inside the feed trough (1) for turning and conveying jasmine tea blanks. Five equally spaced support legs (26) are fixedly connected to both sides of the feed trough (1). A bracket (24) is fixedly connected to the surface of two sets of opposing support legs (26). A water guide pipe (28) is installed inside the bracket (24). Multiple equally spaced nozzles (29) are installed on the surface of the water guide pipe (28). The nozzles (29) are located directly above the spiral blade (210) for spraying water mist onto the tea blanks. A water leakage hole (27) is opened on the lower surface of the feed trough (1).

2. The pre-wetting treatment mechanism for jasmine tea leaves according to claim 1, characterized in that: A drive motor (21) is installed on one side of the guide trough (1). The drive end of the drive motor (21) passes through the guide trough (1) and is connected to the shaft of the spiral blade (210).

3. The pre-wetting treatment mechanism for jasmine tea leaves according to claim 1, characterized in that: A water supply pipe (23) is installed on one side of the water guide pipe (28), and the water supply pipe (23) is connected to the nozzle (29) through the water guide pipe (28).

4. The pre-wetting treatment mechanism for jasmine tea leaves according to claim 1, characterized in that: An inclined side plate (25) is installed on the upper end face of the feed trough (1), and a hopper (22) is fixedly connected to one end of the side plate (25).

5. A pre-wetting treatment mechanism for jasmine tea leaves according to claim 1, characterized in that: The lower surface of the feed trough (1) is provided with a stabilizing component (3) for cleaning up accumulated water.

6. The pre-wetting treatment mechanism for jasmine tea leaves according to claim 5, characterized in that: The stabilizing component (3) includes a mounting bracket (31), which is fixedly connected to the lower surface of the guide trough (1). A sliding sleeve (32) is slidably connected to the mounting bracket (31). An air jet hood (36) is fixedly connected to one side of the sliding sleeve (32). The air jet hood (36) has the same curvature as the bottom of the guide trough (1). An air inlet pipe (37) is installed on one side of the air jet hood (36).

7. A pre-wetting treatment mechanism for jasmine tea leaves according to claim 6, characterized in that: An arc-shaped guide rod (33) is fixedly connected to the inner wall of the mounting bracket (31). The sliding sleeve (32) slides on the surface of the guide rod (33). A compression spring (34) is fixedly connected to one side of the sliding sleeve (32). The compression spring (34) is sleeved on the guide rod (33). The end of the compression spring (34) away from the sliding sleeve (32) is fixedly connected to the inner wall of the mounting bracket (31). A pull block (35) is fixedly connected to the surface of the sliding sleeve (32).