Bamboo tube fermentation device for Don acid tea
By designing a temperature-controlled chamber and fixed components, combined with inert gas fermentation, the time-consuming, labor-intensive, and contamination problems of traditional De'ang sour tea fermentation have been solved, achieving a simple and controllable fermentation process while preserving the traditional flavor.
Patent Information
- Application Number
- CN202520535951.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-25
AI Technical Summary
The traditional fermentation process for De'ang sour tea is troublesome, time-consuming, and labor-intensive, and it is easily contaminated and difficult to control.
The bamboo tubes are fixed in a temperature-controlled box, and inert gas is introduced through a gas storage bottle for anaerobic fermentation. Fixing components and clamping mechanisms are used to ensure that the bamboo tubes are vertically fixed and sealed.
It simplifies the operation process, reduces the risk of contamination, and achieves controllability of the fermentation process while preserving the traditional flavor.
Smart Images
Figure CN223913374U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tea fermentation equipment, and in particular to a bamboo tube fermentation device for De'ang sour tea. Background Technology
[0002] The traditional fermentation process of De'ang sour tea involves selecting local large bamboo, such as Longjiang bamboo, cut into bamboo tubes about 80cm high. After kneading and drying the tea leaves, they are packed into the bamboo tubes. The tea leaves are pressed down as they are packed, and the tubes are tapped with bamboo sticks to ensure they are compacted until full. There should be no gaps between the tea leaves or between the tea leaves and the bamboo tubes. The opening of the bamboo tube is then sealed with fresh banana leaves, followed by a wrapping with bamboo shoot leaves (locally called bamboo shoot leaves). Fresh banana leaves are used to support the bottom and sides of the fermentation pit to create a sealed environment, preventing insects, water, and air from entering. When burying the bamboo tubes in the pit, the sealed opening is placed upright, with a layer of stones underneath and a layer of stone slabs on top to reinforce the seal. After the stone slabs are in place, the bamboo tubes are placed into the pit.
[0003] Fill the pit with soil and tamp it down firmly. After sealing the pit, wait for the tea leaves to ferment. The fermentation time depends on the local temperature, humidity, and the amount of raw materials. Traditional fermentation methods are very troublesome, time-consuming, labor-intensive, and prone to contamination, making the fermentation process difficult to control. Utility Model Content
[0004] The purpose of this invention is to provide a bamboo tube fermentation device for De'ang sour tea, which solves the problems of traditional fermentation methods being troublesome, time-consuming, labor-intensive, prone to contamination, and difficult to control during the fermentation process.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] A bamboo tube fermentation device for De'ang sour tea includes a hollow temperature control box with an openable sealing cover at the top. Multiple fixing components are installed inside the temperature control box to secure a sealed and inverted bamboo tube. An oxygen concentration detector is installed inside the temperature control box. A control panel and a gas storage cylinder are located on the outside of the temperature control box. The gas storage cylinder is detachably connected to a first solenoid valve, which is connected to the upper left side of the temperature control box. A second solenoid valve is located at the lower right side of the temperature control box. The temperature control box, oxygen concentration detector, first solenoid valve, and second solenoid valve are all electrically connected to the control panel.
[0007] By adopting the above technical solution, the tea leaves are placed in a bamboo tube and sealed. The bamboo tube is then fixed in a temperature-controlled box using a fixing component. Inert gas is introduced through a gas storage bottle to facilitate anaerobic fermentation of the tea leaves.
[0008] A further configuration of this utility model is as follows: the fixing assembly includes a first support plate, a second support plate, a support ring, a cover, a lifting mechanism, a pressing block, and a clamping mechanism. The first and second support plates are symmetrically installed on both sides of the bamboo tube. The lower ends of the first and second support plates are connected to the bottom of the temperature control box. The support ring is connected to the upper ends of the first and second support plates. The cover is detachably connected to the support ring. The lifting mechanism is installed in the middle of the cover. The pressing block is located at the lower end of the lifting mechanism and presses against the upper end of the bamboo tube. The clamping mechanism is located between the first and second support plates and is slidably connected to the cover. The clamping mechanism can slide up and down and is used to clamp the bamboo tube and the cover coaxially.
[0009] By adopting the above technical solution, the fixing component places the bamboo tube between the first and second support plates, fixes the cover to the support ring, and then uses a lifting mechanism to press down the pressing block, which presses and fixes the bamboo tube. Before pressing, the bamboo tube is clamped and fixed by a clamping mechanism, which makes it easier to make the bamboo tube and the cover coaxial and better fix the bamboo tube.
[0010] A further configuration of this utility model is as follows: the lifting mechanism includes a handle, an outer threaded sleeve, an inner threaded rod, a sliding rod, and a limiting block. The outer threaded sleeve is vertically inserted into the lower middle part of the cover body. The handle is located at the upper middle part of the cover body and is connected to the outer threaded sleeve. The handle is rotatably connected to the outer threaded sleeve. The inner threaded rod is vertically inserted into the lower end of the outer threaded sleeve and is threadedly connected to the outer threaded sleeve. The lower end of the inner threaded rod is connected to the pressing block. Two sliding rods are provided and are symmetrically arranged vertically on both sides of the bamboo tube. The upper end of the sliding rod is connected to the cover body. The limiting block is connected to the lower end of the sliding rod. The pressing block is slidably connected to the sliding rod and can slide up and down.
[0011] By adopting the above technical solution, the outer screw sleeve is rotated by turning the handle, while the pressing plate is slidably connected to the slide rod, thereby adjusting the up and down movement of the inner screw rod and the pressing plate.
[0012] A further feature of this invention is that the clamping mechanism includes a sliding ring, a screw, a V-shaped clamp, an anti-slip pad, and a knob. The sliding ring is sleeved on the outside of the bamboo tube. The left and right ends of the sliding ring are slidably connected to two sliding rods, respectively. Two screws are provided and horizontally inserted into the sliding ring in a symmetrical manner. The screws are threadedly engaged with the sliding ring. Two V-shaped clamps are provided and symmetrically arranged between the sliding ring and the bamboo tube, respectively. The anti-slip pad is provided on the concave side of the V-shaped clamp. The concave side of the V-shaped clamp clamps the outside of the bamboo tube. The protruding side of the V-shaped clamp is rotatably connected to the screw. The knob is located at one end of the screw outside the sliding ring.
[0013] By adopting the above technical solution, the position of the V-shaped clamp can be adjusted by rotating the screw to clamp the bamboo tube. The bamboo tube is first clamped by the clamping mechanism and then placed between the first support plate and the second support plate, so that the bamboo tube can always remain vertical when pressed and fixed.
[0014] A further feature of this invention is that a handle is provided at the upper end of the cover.
[0015] By adopting the above technical solution, it is convenient to lift the lid and the bamboo tube.
[0016] A further feature of this invention is that a protrusion is provided at the bottom of the temperature control box between the first support plate and the second support member, and the upper end of the protrusion is an arc surface.
[0017] By adopting the above technical solution, it is convenient to further press and seal the sealed bamboo tube.
[0018] In summary, this utility model has the following beneficial effects:
[0019] Firstly, this utility model uses various fixing components to fix the bamboo tubes inside the temperature control box, thereby replacing the soil sealing. It is simple and convenient to operate, less prone to contamination, easy to control the fermentation process, and can maintain the traditional flavor.
[0020] Secondly, the fixing component in this utility model can be used to press the pressing block down by rotating the handle, thereby fixing the bamboo tube between the first support plate and the second support plate. It is simple and convenient and can be adapted to bamboo tubes of different lengths.
[0021] Thirdly, the clamping mechanism in this utility model can clamp and fix the bamboo tube before it is placed in the temperature control box, so that the bamboo tube remains vertical when fixed, ensuring the effect of pressing and sealing. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall mechanism in this utility model;
[0023] Figure 2 This is a cross-sectional view of the fixing component in this utility model;
[0024] Figure 3 This is a cross-sectional view of the clamping mechanism in this utility model;
[0025] Figure 4 This is a cross-sectional view of the second solenoid valve in this utility model.
[0026] In the diagram: 1. Temperature control box; 11. Oxygen concentration detector; 12. Control panel; 13. First solenoid valve; 14. Second solenoid valve; 2. Sealing cover; 3. Fixing assembly; 31. First support plate; 32. Second support plate; 33. Support ring; 34. Cover; 35. Lifting mechanism; 351. Handle; 352. Outer threaded sleeve; 353. Inner threaded rod; 354. Slide rod; 355. Limiting block; 36. Pressing block; 37. Clamping mechanism; 371. Sliding ring; 372. Threaded rod; 373. V-shaped clamping block; 374. Anti-slip pad; 375. Knob; 38. Handle; 4. Bamboo tube; 5. Gas cylinder; 6. Protrusion. Detailed Implementation
[0027] The present invention will be further described in detail below with reference to the accompanying drawings.
[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] Example: A bamboo tube fermentation device for De'ang sour tea, such as... Figures 1 to 4As shown, the device includes a hollow temperature control box 1, which controls the fermentation temperature. The upper end of the temperature control box 1 has an openable sealing cap 2 for sealing. The temperature control box 1 and sealing cap 2 are common commercial devices and will not be described in detail. The temperature control box 1 contains multiple fixing components 3, which are used to fix the sealed and inverted bamboo tube 4. An oxygen concentration detector 11 is installed inside the temperature control box 1 to detect the oxygen concentration, which is beneficial for anaerobic fermentation. A control panel 12 is located on the outside of the temperature control box 1, and a gas storage bottle 5 is also located on the outside of the temperature control box 1. The gas storage bottle 5 is detachably connected to a first solenoid valve 13, which is connected to the upper left side of the temperature control box 1. A second solenoid valve 14 is located at the lower right side of the temperature control box 1. Opening the first solenoid valve 13 and the second solenoid valve 14 allows the inert gas in the gas storage bottle 5 to enter the temperature control box 1, while oxygen is discharged from the second solenoid valve 14, creating an anaerobic fermentation environment. The inert gas can be carbon dioxide or nitrogen; in this embodiment, nitrogen is used. Temperature control chamber 1, oxygen concentration detector 11, first solenoid valve 13 and second solenoid valve 14 are all electrically connected to control panel 12, so that control panel 12 can control the coordinated operation of various electronic components.
[0032] The fixing component 3 includes a first support plate 31, a second support plate 32, a support ring 33, a cover 34, a lifting mechanism 35, a pressing block 36, and a clamping mechanism 37. The first support plate 31 and the second support plate 32 are symmetrically installed on both sides of the bamboo tube 4. The lower ends of the first support plate 31 and the second support plate 32 are connected to the bottom of the temperature control box 1. The support ring 33 is connected to the upper ends of the first support plate 31 and the second support plate 32. The support ring 33, the first support rod, and the second support rod form a support structure. The cover 34 is detachably connected to the support ring 33. In this embodiment, the cover 34 and the support ring 33 are connected by a thread, but other connection methods are also possible. The lifting mechanism 35 is installed in the middle of the cover 34, and the pressing block 36 is located at the lower end of the lifting mechanism 35. The pressing block 36 presses against the upper end of the bamboo tube 4. The clamping mechanism 37 is located between the first support plate 31 and the second support plate 32. The clamping mechanism 37 is slidably connected to the cover 34 and can slide up and down. The clamping mechanism 37 is used to clamp the bamboo tube 4 and the cover 34 coaxially. After the bamboo tube 4 is placed between the first support plate 31 and the second support plate 32, the pressing block 36 is moved downward by the lifting mechanism 35 to press and fix the bamboo tube 4. The clamping mechanism 37 mainly ensures that the bamboo tube 4 is in a vertical state before pressing and fixing.
[0033] The lifting mechanism 35 includes a handle 351, an outer threaded sleeve 352, an inner threaded rod 353, a sliding rod 354, and a limiting block 355. The outer threaded sleeve 352 is vertically attached to the lower middle part of the cover 34. The handle 351 is located at the upper middle part of the cover 34 and is connected to the outer threaded sleeve 352. The handle 351 is rotatably connected to the outer threaded sleeve 352. The inner threaded rod 353 is vertically inserted into the lower end of the outer threaded sleeve 352 and is threadedly connected to the outer threaded sleeve 352. The lower end of the inner threaded rod 353 is connected to the pressing block 36. There are two sliding rods 354, which are symmetrically arranged vertically on both sides of the bamboo tube 4. The upper end of the sliding rod 354 is connected to the cover 34. The limiting block 355 is connected to the lower end of the sliding rod 354. The pressing block 36 is slidably connected to the sliding rod 354 and can slide up and down. The lifting mechanism 35 drives the outer threaded sleeve 352 to rotate by turning the handle 351, while the pressing block 36 is slidably connected to the slide rod 354, so that the inner threaded rod 353 can be raised and lowered to realize the function of upgrading the pressing block 36.
[0034] The clamping mechanism 37 includes a sliding ring 371, a screw 372, a V-shaped clamping block 373, an anti-slip pad 374, and a knob 375. The sliding ring 371 is sleeved on the outside of the bamboo tube 4. The left and right ends of the sliding ring 371 are slidably connected to two sliding rods 354 respectively. There are two screws 372, which are symmetrically inserted horizontally on the sliding ring 371. The screws 372 and the sliding ring 371 are threaded together. There are two V-shaped clamping blocks 373, which are symmetrically arranged between the sliding ring 371 and the bamboo tube 4 respectively. The anti-slip pad 374 is located on the concave side of the V-shaped clamping block 373. The concave side of the V-shaped clamping block 373 clamps the outside of the bamboo tube 4. The protruding side of the V-shaped clamping block 373 is rotatably connected to the screw 372. The knob 375 is located at the end of the screw 372 outside the sliding ring 371. The position of the V-shaped clamp 373 can be adjusted by rotating the screw 372 to clamp and fix the bamboo tube 4, keeping it in the middle of the cover 34. Then, it is placed between the first support plate 31 and the second support plate 32. When pressing and fixing, the sliding ring 371 slides along with it, which does not affect the pressing and fixing effect.
[0035] To facilitate the rotation of the cover 34 and the removal of the fixing component 3, a handle 38 is provided at the upper end of the cover 34. A protrusion 6 is provided at the bottom of the temperature control box 1 between the first support plate 31 and the second support member, with the upper end of the protrusion 6 having an arc-shaped surface. This allows for better pressing and sealing of the open end of the bamboo tube 4.
[0036] Instructions for use: Select local large bamboo, Longjiang bamboo, etc., and cut them into bamboo tubes 4 about 80cm high. After kneading and drying the tea leaves, put them into the bamboo tubes, pressing them down as you go, and tapping them with a bamboo stick to ensure they are compacted until the tubes are full. There should be no gaps between the tea leaves or between the tea leaves and the bamboo tubes. Seal the opening of the bamboo tube 4 with fresh banana leaves, and then wrap the opening with bamboo shoot leaves or locally called bamboo shoot leaves. Invert the bamboo tube 4 and clamp it with the clamping mechanism 37. Place the lid 34 and the bamboo tube 4 together into the temperature control box 1. Then connect the lid 34 to the connecting ring and turn the handle 351 to fix the bamboo tube 4 in place. Finally, put on the sealing lid 2, open the first solenoid valve 13 and the second solenoid valve 14 to release the oxygen in the sealed box, and then close the first solenoid valve 13 and the second solenoid valve 14. Let the tea ferment.
[0037] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A bamboo tube fermentation device for De'ang sour tea, comprising a hollow temperature control box (1), wherein the upper end of the temperature control box (1) is provided with an openable sealing cover (2), characterized in that: The temperature control box (1) is provided with multiple fixing components (3), which are used to fix the sealed and inverted bamboo tube (4). The temperature control box (1) is provided with an oxygen concentration detector (11). The outside of the temperature control box (1) is provided with a control panel (12). The outside of the temperature control box (1) is provided with a gas storage bottle (5). The gas storage bottle (5) is detachably connected to a first solenoid valve (13). The first solenoid valve (13) is connected to the upper left side of the temperature control box (1). The lower right side of the temperature control box (1) is provided with a second solenoid valve (14). The temperature control box (1), the oxygen concentration detector (11), the first solenoid valve (13) and the second solenoid valve (14) are all electrically connected to the control panel (12).
2. The bamboo tube fermentation device for De'ang sour tea according to claim 1, characterized in that: The fixing component (3) includes a first support plate (31), a second support plate (32), a support ring (33), a cover (34), a lifting mechanism (35), a pressing block (36), and a clamping mechanism (37). The first support plate (31) and the second support plate (32) are symmetrically installed on both sides of the bamboo tube (4). The lower ends of the first support plate (31) and the second support plate (32) are connected to the bottom of the temperature control box (1). The support ring (33) is connected to the upper ends of the first support plate (31) and the second support plate (32). The cover (34) can... The support ring (33) is disassembled and connected. The lifting mechanism (35) is installed in the middle of the cover (34). The pressing block (36) is located at the lower end of the lifting mechanism (35) and presses the upper end of the bamboo tube (4). The clamping mechanism (37) is located between the first support plate (31) and the second support plate (32). The clamping mechanism (37) is slidably connected to the cover (34) and can slide up and down. The clamping mechanism (37) is used to clamp the bamboo tube (4) and the cover (34) coaxially.
3. The bamboo tube fermentation device for De'ang sour tea according to claim 2, characterized in that: The lifting mechanism (35) includes a handle (351), an outer threaded sleeve (352), an inner threaded rod (353), a sliding rod (354), and a limiting block (355). The outer threaded sleeve (352) is vertically positioned at the lower center of the cover (34). The handle (351) is located at the upper center of the cover (34). The handle (351) is connected to the outer threaded sleeve (352) and is rotatably connected to the outer threaded sleeve (352). The inner threaded rod (353) is vertically inserted into the outer threaded sleeve (351). 2) At the lower end, the inner screw (353) is threaded to the outer screw sleeve (352), the lower end of the inner screw (353) is connected to the pressing block (36), the slide rod (354) is provided with two vertically arranged on both sides of the bamboo tube (4) symmetrically, the upper end of the slide rod (354) is connected to the cover (34), the limiting block (355) is connected to the lower end of the slide rod (354), the pressing block (36) is slidably connected to the slide rod (354), and the pressing block (36) can slide up and down.
4. The bamboo tube fermentation device for De'ang sour tea according to claim 3, characterized in that: The clamping mechanism (37) includes a sliding ring (371), a screw (372), a V-shaped clamp (373), an anti-slip pad (374), and a knob (375). The sliding ring (371) is sleeved on the outside of the bamboo tube (4). The left and right ends of the sliding ring (371) are slidably connected to two sliding rods (354). The screw (372) has two screws that are symmetrically inserted horizontally on the sliding ring (371). The screws (372) and the sliding ring (371) are threaded together. The V-shaped clamp (373) is provided in two symmetrical positions between the sliding ring (371) and the bamboo tube (4). The anti-slip pad (374) is provided on the concave side of the V-shaped clamp (373). The concave side of the V-shaped clamp (373) is clamped on the outside of the bamboo tube (4). The protruding side of the V-shaped clamp (373) is rotatably connected to the screw (372). The knob (375) is provided at one end of the screw (372) outside the sliding ring (371).
5. The bamboo tube fermentation device for De'ang sour tea according to claim 4, characterized in that: The upper end of the cover (34) is provided with a handle (38).
6. The bamboo tube fermentation device for De'ang sour tea according to claim 5, characterized in that: The bottom of the temperature control box (1) is provided with a protrusion (6) between the first support plate (31) and the second support member, and the upper end of the protrusion (6) is an arc surface.