A drying box facilitating spreading of tea leaves
Patent Information
- Application Number
- CN202522375542.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-10
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-11-10
AI Technical Summary
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the servo motor and the toggle plate facilitates the control of the support frame to drive the support frame and the toothed rake to rotate, and facilitates the control of the toothed rake to move the tea leaves during rotation, thereby facilitating the even spreading of the tea leaves and making it easier to dry the tea leaves; the cooperation between the first air pump and the second air pump facilitates the control of air circulation inside the drying chamber, facilitating the discharge of moisture during the tea drying process and maintaining the dryness of the inner chamber; the above structure solves the problem of inconsistent dryness of tea leaves in different areas during the use of existing tea drying chambers, resulting in unstable quality.
Smart Images
Figure CN224860835U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of drying oven equipment, and in particular to a drying oven that facilitates the spreading of tea leaves. Background Technology
[0002] Tea drying ovens are key pieces of equipment used in the refining and processing of tea. Their main purpose is to uniformly reduce the moisture content of tea leaves, facilitating subsequent sieving and even stacking operations, making the tea leaves loose and easy to disperse, thereby effectively improving the overall quality of the tea and production efficiency. Existing drying ovens generally use a support frame to hold the tea leaves, which are then placed on a support rack located inside the drying chamber. A motor drives the support rack to rotate, while hot air is circulated into the inner chamber to dry the tea leaves. However, this structure, due to the uneven shape and thickness of the tea leaves, can easily lead to uneven thickness in different areas during the drying process due to initial conditions or deformation during drying. This results in different drying speeds in different areas, leading to inconsistent dryness and affecting the quality of the finished tea product. Therefore, improvements are needed to address the aforementioned problems. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drying box that facilitates the spreading of tea leaves.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a drying box for facilitating the spreading of tea leaves, comprising a drying box, wherein the interior of the drying box is provided with a drive groove, a drying groove and a heating groove, an isolation plate is installed in the drive groove, and the drive groove is separated into a drive area and a ventilation area by the isolation plate, the drying groove is located below the drive groove, and the front end of the drying groove extends through the drying box, the heating groove is located below the drying groove, a protective door is hinged to the front end of the drying groove, a mechanical lock is installed on one side of the protective door, a control panel is installed above the front end of the drying box, a rotating spreading component is installed in both the drive groove and the drying groove, and a drying component is installed in both the heating groove and the drying groove.
[0005] Preferably, the rotating spreading assembly includes an insulation layer installed on the inner wall of the drying tank, an inner liner installed on the inner wall of the insulation layer, a support frame provided in the inner liner, and a rotating shaft connected to the middle of the upper and lower ends of the support frame. The upper rotating shaft passes through the insulation layer, the inner liner and the drying tank, and a drive box is provided above the upper rotating shaft.
[0006] Preferably, the upper end is connected to a driven shaft, the upper end of which is placed inside a drive box. A servo motor is provided at the front end of the drive box. The output shaft of the servo motor is connected to a drive shaft via a coupling. The upper end of the drive shaft is placed inside the drive box. Both the drive shaft and the driven shaft are equipped with transmission wheels. A belt is sleeved on the outer side of the two transmission wheels. The servo motor is installed in the drive area. The lower end rotating shaft passes through the insulation layer and the inner liner and is rotatably connected to the drying tank.
[0007] Preferably, the support frame has multiple support frames arranged longitudinally at equal intervals inside, and each support frame has a toothed rake above it. The toothed rakes are rotatably connected to the support frame. The rear end face of the inner liner is fitted with multiple levers in cooperation with the toothed rakes. Each lever is composed of a hinge seat, a torsion spring and a lever bar. The rear end of the lever bar is hinged to the hinge seat, and a torsion spring connects the lever bar and the hinge seat.
[0008] Preferably, the drying assembly includes a first air pump installed at the rear end of the heating tank. A filter is connected to the air inlet pipe of the first air pump, and a heating box is connected to the air outlet pipe of the first air pump. A heating tube is installed inside the heating box, and air passage pipes are connected to both sides of the heating box. The upper ends of the two sets of air passage pipes penetrate the insulation layer and the lower end of the inner liner and the heating tank, and are attached to the inner walls of both sides of the insulation layer by retaining rings. Multiple air outlets are opened on the adjacent sides of the two sets of air passage pipes.
[0009] Preferably, an air collecting hopper is installed at the upper end of the inner liner, and a connecting pipe is connected to the air collecting hopper. The air collecting hopper is located at the rear end of the support frame. The connecting pipe passes through the insulation layer, the upper end of the inner liner, and the drying chamber. The other end of the connecting pipe is connected to a second air pump. The second air pump is installed in the ventilation area. The drying chamber has ventilation slots in cooperation with the first air pump and the second air pump.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the servo motor and the toggle plate facilitates the control of the support frame to drive the support frame and the toothed rake to rotate, and facilitates the control of the toothed rake to move the tea leaves during rotation, thereby facilitating the even spreading of the tea leaves and making it easier to dry the tea leaves; the cooperation between the first air pump and the second air pump facilitates the control of air circulation inside the drying chamber, facilitating the discharge of moisture during the tea drying process and maintaining the dryness of the inner chamber; the above structure solves the problem of inconsistent dryness of tea leaves in different areas during the use of existing tea drying chambers, resulting in unstable quality. Attached Figure Description
[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a three-dimensional schematic diagram of the overall structure proposed in this utility model; Figure 2 This utility model provides a three-dimensional schematic diagram of the internal structure connection state; Figure 3 This is a three-dimensional schematic diagram of a portion of the structure proposed in this utility model; Figure 4 This is a schematic diagram of a portion of the structure proposed in this utility model from another perspective; Figure 5 This is a three-dimensional schematic diagram of the supporting and spreading structure proposed in this utility model; Figure 6 This is a three-dimensional schematic diagram of the drive support structure proposed in this utility model; Figure 7 This is a cross-sectional schematic diagram of the lever structure proposed in this utility model.
[0012] The following are the components listed in the diagram: 1. Drying oven; 2. Mechanical lock; 3. Insulation layer; 4. Inner liner; 5. Servo motor; 6. Drive box; 7. Support frame; 8. Toothed rake; 9. Paddle plate; 10. First air pump; 11. Filter; 12. Heating box; 13. Air pipeline; 14. Second air pump. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0014] Example: See Figures 1 to 7This utility model discloses a drying box for facilitating the spreading of tea leaves. The box includes a drying box 1, with a drive groove, a drying groove, and a heating groove inside. An isolation plate is installed inside the drive groove, dividing it into a drive area and a ventilation area. The drying groove is located below the drive groove, with its front end extending through the drying box 1. The heating groove is located below the drying groove. A protective door is hinged to the front end of the drying groove, and a mechanical lock 2 is installed on one side of the protective door. A control panel is installed above the front face of the drying box 1. A rotating spreading assembly is installed in both the drive groove and the drying groove, and a drying assembly is installed in both the heating groove and the drying groove. The cooperation between the rotating spreading assembly and the drying assembly facilitates uniform drying of the tea leaves. The rotating spreading assembly includes a heat insulation layer 3 installed on the inner wall of the drying groove, and an inner liner 4 is installed on the inner wall of the heat insulation layer 3. The inner liner 4 is equipped with a support frame 7. The upper and lower middle parts of the support frame 7 are connected to a rotating shaft. The upper rotating shaft passes through the insulation layer 3, the inner liner 4 and the drying tank. A drive box 6 is located above the upper rotating shaft. Through the insulation layer 3 and the inner liner 4, it is easy to maintain a constant internal temperature and reduce heat loss. The upper end of the upper rotating shaft is connected to a driven shaft. The upper end of the driven shaft is placed in the drive box 6. The front end of the drive box 6 is equipped with a servo motor 5. The output shaft of the servo motor 5 is connected to a drive shaft through a coupling. The upper end of the drive shaft is placed in the drive box 6. Both the drive shaft and the driven shaft are equipped with transmission wheels. Belts are sleeved on the outside of the two transmission wheels. The servo motor 5 is installed in the drive area. The lower rotating shaft passes through the insulation layer 3 and the inner liner 4 and is rotatably connected to the drying tank. Through the servo motor 5 and the drive box 6, it is easy to control the rotation of the support frame 7.
[0015] In this utility model, multiple support frames are longitudinally and equidistantly arranged inside the support frame 7. Each support frame is equipped with a toothed rake 8 above it. The toothed rake 8 is rotatably connected to the support frame 7. Multiple levers 9 are installed on the rear end face of the inner liner 4 in conjunction with the toothed rake 8. Each lever 9 consists of a hinge seat, a torsion spring, and a lever bar. The rear end of the lever bar is hinged to the hinge seat, and a torsion spring is connected between the lever bar and the hinge seat. The torsion spring and the hinge seat facilitate the control of the lever bar to return to its original position. The drying assembly includes a first air pump 10 installed at the rear end of the heating tank. A filter 11 is connected to the air inlet pipe of the first air pump 10, and a heating box 12 is connected to the air outlet pipe of the first air pump 10. A heating tube is installed inside the heating box 12, and air passage pipes 13 are connected to both sides of the heating box 12. Two sets of air passages The upper end of the pipe 13 passes through the insulation layer 3 and the lower end of the inner liner 4 and the heating tank, and is attached to the inner walls of both sides of the insulation layer 3 by a retaining ring. Multiple air outlets are opened on the adjacent sides of the two sets of air pipes 13. Hot air can easily enter the inner liner 4 to dry the tea leaves through the air pipes 13. An air collecting hopper is installed at the upper end of the inner liner 4. A connecting pipe is connected to the air collecting hopper, and the air collecting hopper is placed at the rear end of the support frame 7. The connecting pipe passes through the insulation layer 3 and the upper end of the inner liner 4 and the drying tank. The other end of the connecting pipe is connected to a second air pump 14. The second air pump 14 is installed in the ventilation area. The drying box 1 has ventilation slots in conjunction with the first air pump 10 and the second air pump 14. The first air pump 10 and the second air pump 14 facilitate the air circulation and moisture discharge in the drying box 1.
[0016] Working Principle: When using this invention, the operator first needs to open the protective door hinged to the front of the drying chamber. After releasing the door's lock using the mechanical lock 2, the tea leaves to be dried are evenly placed on multiple longitudinally equidistant support frames inside the support frame 7. Then, the support frames containing the tea leaves are placed stably on the support frame 7 inside the inner chamber 4. The protective door is then closed and locked using the mechanical lock 2. Next, the equipment is started via the control panel installed above the front face of the drying chamber 1. First, the servo motor 5 installed in the drive area is started. The output shaft of the servo motor 5 starts to rotate through the drive shaft connected by the coupling. Since the drive shaft and the driven shaft (which is connected to the rotating shaft at the middle of the upper end of the support frame 7) are both equipped with transmission wheels, and belts are sleeved on the outer sides of the two transmission wheels, the rotation of the drive shaft will drive the driven shaft to rotate through the belt drive, which in turn drives the rotating shaft at the upper end of the support frame 7 to rotate, and finally makes the support frame 7 and the support frame on it rotate synchronously in the inner liner 4 (the inner liner 4 is installed on the inner wall of the insulation layer 3, and the insulation layer 3 is installed on the inner wall of the drying tank). As the support frame 7 begins to rotate, the first air pump 10 and heating box 12, installed at the rear end of the heating tank, are activated via the control panel. The first air pump 10 draws in outside air through the air inlet pipe. The air is first filtered by the filter 11 connected to the air inlet pipe to remove impurities. The filtered air then enters the heating box 12 and is heated into hot air by the heating pipes installed inside the heating box 12. The hot air is then delivered through the air ducts 13 connected to both sides of the heating box 12. The upper ends of the two sets of air ducts 13 pass through the insulation layer 3, the lower end of the inner liner 4, and the heating tank, and are attached to the inner walls of both sides of the insulation layer 3 by retaining rings. Finally, the air is discharged from multiple air outlets on the adjacent sides of the two sets of air ducts 13 and enters the inner liner 4 to dry the tea leaves on the support frame. At the same time, the air collecting hopper installed at the upper end of the inner liner 4 (the air collecting hopper is located at the rear end of the support frame 7) collects the air containing moisture in the inner liner 4. This moisture is transported through the connecting pipe connected to the air collecting hopper. The connecting pipe passes through the insulation layer 3, the upper end of the inner liner 4 and the drying tank, and finally transports the moisture to the second air pump 14 installed in the ventilation area. After the second air pump 14 is started, the moisture is discharged through the ventilation slots opened on the drying box 1, realizing the air circulation and moisture discharge in the drying box 1. During the tea drying process, as the support frame rotates with the support frame 7, the toothed rakes 8, which are rotatably connected to the support frame 7 above each support frame, rotate synchronously with the support frame, keeping the toothed rakes 8 and the tea leaves inside the support frame relatively stationary. When one end of the toothed rake 8 rotates to contact and collide with the deflector 9 (which consists of a hinge seat, a torsion spring, and a deflector bar, with the rear end of the deflector bar hinged to the hinge seat and a torsion spring connecting the deflector bar and the hinge seat) installed with the rear end face of the inner liner 4, the toothed rake 8 stops rotating. At this time, the support frame continues to rotate under the drive of the support frame 7, causing the toothed rake 8 and the tea leaves inside the support frame to rotate relative to each other. The toothed rake 8 then moves the tea leaves in the support frame, spreading them evenly. As the support frame 7 drives the toothed rake 8 to continue rotating, the toothed rake 8 and the deflector bar... When the lever 9 continues to contact and apply force, the lever bends around the hinge seat. At this time, one end of the toothed rake 8 is no longer in close contact with the lever 9, and the toothed rake 8 will resume rotation as the support frame 7 rotates, and remain relatively stationary with the tea leaves in the support frame again. When the support frame 7 drives the toothed rake 8 to rotate past the position of the lever 9, the lever returns to its original position under the elastic force of the torsion spring, waiting for the next contact with the toothed rake 8. Similarly, when the toothed rake 8 continues to rotate with the support frame 7, when its other end rotates to abut against the corresponding lever 9, the process of the toothed rake 8 stopping rotation, rotating relatively with the tea leaves, and spreading the tea leaves will be repeated until the tea leaves are dried. The operator then turns off the equipment, opens the protective door, and takes out the dried tea leaves, thus ending the entire process.
[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A drying box for easy spreading of tea leaves, comprising a drying box (1), characterized in that: The drying chamber (1) is provided with a drive slot, a drying slot and a heating slot. An isolation plate is installed in the drive slot, and the drive slot is separated into a drive area and a ventilation area by the isolation plate. The drying slot is located below the drive slot, and the heating slot is located below the drying slot. A protective door is hinged to the front end of the drying slot, and a mechanical lock (2) is installed on one side of the protective door. A control panel is installed above the front end of the drying chamber (1). A rotating spreading assembly is installed in both the drive slot and the drying slot, and a drying assembly is installed in both the heating slot and the drying slot.
2. The drying box for facilitating the spreading of tea leaves according to claim 1, characterized in that: The rotating spreading assembly includes an insulation layer (3) installed on the inner wall of the drying tank. An inner liner (4) is installed on the inner wall of the insulation layer (3). A support frame (7) is provided inside the inner liner (4). A rotating shaft is connected to the middle of the upper and lower ends of the support frame (7). The upper rotating shaft passes through the insulation layer (3), the inner liner (4) and the drying tank. A drive box (6) is provided above the upper rotating shaft.
3. A drying box for facilitating the spreading of tea leaves according to claim 2, characterized in that: The upper end of the upper rotating shaft is connected to a driven shaft. The upper end of the driven shaft is placed inside the drive box (6). The front end of the drive box (6) is provided with a servo motor (5). The output shaft of the servo motor (5) is connected to a drive shaft through a coupling. The upper end of the drive shaft is placed inside the drive box (6). Both the drive shaft and the driven shaft are equipped with transmission wheels. The two transmission wheels are fitted with belts on their outer sides. The servo motor (5) is installed in the drive area. The lower rotating shaft passes through the insulation layer (3) and the inner liner (4) and is rotatably connected to the drying tank.
4. A drying box for facilitating the spreading of tea leaves according to claim 2, characterized in that: The support frame (7) has multiple support frames arranged longitudinally at equal intervals inside. Each support frame is equipped with a toothed rake (8) above it. The toothed rake (8) is rotatably connected to the support frame (7). The rear end face of the inner liner (4) is fitted with multiple levers (9) in cooperation with the toothed rake (8). The levers (9) are composed of a hinge seat, a torsion spring and a lever bar. The rear end of the lever bar is hinged to the hinge seat, and a torsion spring is connected between the lever bar and the hinge seat.
5. A drying box for facilitating the spreading of tea leaves according to claim 1, characterized in that: The drying assembly includes a first air pump (10) installed at the rear end of the heating tank. A filter (11) is connected to the air inlet pipe of the first air pump (10), and a heating box (12) is connected to the air outlet pipe of the first air pump (10). A heating tube is installed inside the heating box (12), and air passage pipes (13) are connected to both sides of the heating box (12). The upper ends of the two sets of air passage pipes (13) penetrate through the insulation layer (3) and the lower ends of the inner liner (4) and are attached to the heating tank by a retaining ring on the inner walls of both sides of the insulation layer (3). Multiple air outlet holes are opened on the adjacent sides of the two sets of air passage pipes (13).
6. A drying box for facilitating the spreading of tea leaves according to claim 2, characterized in that: An air collecting hopper is installed at the upper end of the inner liner (4). A connecting pipe is connected to the air collecting hopper, and the air collecting hopper is placed at the rear end of the support frame (7). The connecting pipe passes through the insulation layer (3), the upper end of the inner liner (4), and the drying tank. The other end of the connecting pipe is connected to a second air pump (14). The second air pump (14) is installed in the ventilation area. The drying box (1) is equipped with ventilation slots in conjunction with the first air pump (10) and the second air pump (14).