A tea moisture content detection device

Abstract

The utility model relates to moisture content detection technical field, and disclose a kind of tea moisture content detection device, including blast drying oven, dryer and electronic scale, there are respectively upper chamber, lower chamber in the blast drying oven, the inner bottom wall of lower chamber is fixedly installed with mounting bracket, blast drying oven, upper chamber, lower chamber are provided with the turnover subassembly of guaranteeing tea moisture content detection authenticity.The tea moisture content detection device, gradually lift contact wheel and the driving rod, bearing disc, baking dish on contact wheel by the rotation of driving wheel under the start of speed reducer, after the convex angle and contact wheel are separated, it will be gravity and fall on the body of revolution again, tea in baking dish will be bounced up and turned over after hitting the body of revolution, tea in the bottom of baking dish can be turned over at this time, the tea in this part is heated and dried, and tea is not immediately turned over again after turning over, ensure the uniformity and effectiveness of tea drying, thereby improve the authenticity of tea moisture content detection.

Description

Technical Field

[0001] This utility model relates to the field of moisture content detection technology, specifically a device for detecting the moisture content of tea leaves. Background Technology

[0002] Moisture content is a key indicator affecting the stability of tea quality, and different types of tea have different suitable moisture content ranges. For example, green tea should have a moisture content of ≤7%, white tea ≤8.5%, oolong tea 7%-8%, and dark tea (pu-erh tea) 9%-10%. The higher the moisture content, the faster the tea quality deteriorates, mainly manifested in the decomposition of effective components such as tea polyphenols and chlorophyll, the volatilization of aroma, and a weaker taste.

[0003] Existing tea moisture content testing devices include forced-air drying ovens and electronic scales. These devices involve placing containers of tea in the forced-air drying oven to remove moisture, and then calculating the moisture content by subtracting the mass of the tea before and after drying from the mass of the tea before drying. However, when the tea is dried in the forced-air drying oven, the tea leaves are stacked and distributed in a covering manner in the container, which means that the tea leaves at the bottom of the container are not effectively dried. This results in uneven heating of the tea leaves, which in turn affects the local overheating and deterioration of the tea leaves in the container or distorts the tea moisture content test data. In addition, traditional manual turning is inefficient and inconvenient due to the small space inside the forced-air drying oven. In order to ensure the accuracy of tea moisture content testing, a new tea moisture content testing device is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a tea moisture content detection device, which has the advantage of ensuring the authenticity of tea moisture content detection.

[0005] To achieve the above-mentioned goal of ensuring the authenticity of tea moisture content detection, this utility model provides the following technical solution: a tea moisture content detection device, including a forced-air drying box, a dryer and an electronic scale, wherein the forced-air drying box has an upper chamber and a lower chamber, and an installation frame is fixedly installed on the inner bottom wall of the lower chamber. The forced-air drying box, the upper chamber and the lower chamber are provided with a turning component to ensure the authenticity of tea moisture content detection; The flipping assembly includes a geared motor, a rotating shaft, a drive wheel, a drive rod, a contact wheel, and a support plate. The geared motor is fixedly installed on the inner bottom wall of the lower chamber. The rotating shaft is fixedly installed on the output shaft of the geared motor. The drive wheel is fixedly connected to the outer surface of the rotating shaft. The drive rod is located at the connection between the upper and lower chambers. The contact wheel is installed at the tail of the drive rod and contacts the outer contour of the drive wheel. The support plate is fixedly installed at the head of the drive rod.

[0006] Furthermore, the rotating shaft is rotatably connected in the mounting frame, and the drive wheel consists of a rotating body and a convex angle, the convex angle being horn-shaped.

[0007] Furthermore, a drying dish is placed on top of the support tray, and the port of the drying dish is fitted with a lid that mates with the drying dish.

[0008] Furthermore, a guide rod is fixedly installed at the bottom of the bearing plate, and a sliding bearing is installed at the connection between the upper chamber and the lower chamber. Both the drive rod and the guide rod are slidably connected to the sliding bearing.

[0009] Furthermore, a spring is installed between the inner top wall of the lower chamber and the contact wheel. The spring (11) passes through the drive rod (74), and the two ends of the spring (11) abut against the wheel seat of the contact wheel (75) and the inner top wall of the lower chamber (5), respectively.

[0010] Furthermore, the top of the carrier tray is provided with a limiting component for positioning the baking dish. The limiting component includes a positioning strip, a stop strip, and a mounting screw. The positioning strip is fixedly connected to the top of the carrier tray, and the mounting screw passes through the stop strip and is threadedly connected to the positioning strip.

[0011] Furthermore, the positioning strips are evenly distributed on the top of the support tray and abut against the outer periphery of the baking dish, and the baffles are in contact with the positioning strips and the upper edge of the baking dish.

[0012] Furthermore, both the upper and lower chambers are equipped with doors at their front ends.

[0013] Compared with the prior art, the present invention provides a tea moisture content detection device, which has the following beneficial effects: This tea moisture content detection device, through the inclusion of a turning component, uses a geared motor to drive the wheel, gradually lifting the contact wheel, its drive rod, support plate, and drying dish. Once the convex corner disengages from the contact wheel, it falls back onto the rotating body under gravity. Upon impact, the tea in the drying dish bounces and turns, thus turning over the tea at the bottom of the dish and drying that portion. The tea is not immediately turned over again after this initial turning, ensuring uniform and effective drying and improving the accuracy of the tea moisture content detection. Attached Figure Description

[0014] Figure 1 This is a three-dimensional front view of the blower drying oven of this utility model. Figure 2 This is a front perspective view of the dryer structure of this utility model; Figure 3 This is a front perspective view of the electronic scale of this utility model; Figure 4This is a three-dimensional view of the lower part of the blower drying oven of this utility model; Figure 5 The structure of this utility model Figure 4 Enlarged diagram of point A in the middle.

[0015] In the diagram: 1. Blower drying oven, 2. Dryer, 3. Electronic scale, 4. Upper chamber, 5. Lower chamber, 6. Mounting bracket, 7. Tilting assembly, 71. Gear motor, 72. Rotary shaft, 73. Drive wheel, 731. Rotating body, 732. Convex angle, 74. Drive rod, 75. Contact wheel, 76. Bearing plate, 8. Drying dish, 9. Guide rod, 10. Sliding bearing, 11. Spring, 12. Limiting assembly, 121. Positioning strip, 122. Stop bar, 123. Mounting screw, 13. Chamber door. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-3 A tea moisture content detection device includes a forced-air drying oven 1, a dryer 2, and an electronic scale 3. The forced-air drying oven 1 and the dryer 2 are used to dry the tea, and the electronic scale 3 is used to weigh the tea. The forced-air drying oven 1 has an upper chamber 4 and a lower chamber 5. The front end of the upper chamber 4 and the lower chamber 5 are provided with a door 13. The inner bottom wall of the lower chamber 5 is fixedly installed with a mounting frame 6.

[0018] Please see Figure 1 , Figure 4 and Figure 5 The drying oven 1, upper chamber 4, and lower chamber 5 are equipped with a turning assembly 7 to ensure the authenticity of the tea moisture content test. The turning assembly 7 includes a geared motor 71, a rotating shaft 72, a drive wheel 73, a drive rod 74, a contact wheel 75, and a bearing plate 76. The geared motor 71 is fixedly installed on the inner bottom wall of the lower chamber 5. The rotating shaft 72 is fixedly installed on the output shaft of the geared motor 71. The rotating shaft 72 is rotatably connected in the mounting bracket 6 for supporting the installation of the rotating shaft 72. The drive wheel 73 is fixedly connected to the outer surface of the rotating shaft 72 and can rotate with the rotating shaft 72. The drive wheel 73 consists of a rotating body 731 and a convex angle 732. The convex angle 732 is shaped like a cow horn.

[0019] Furthermore, a chamber partition plate is provided between the upper chamber 4 and the lower chamber 5. The drive rod 74 is located at the connection between the upper chamber 4 and the lower chamber 5, that is, the drive rod 74 passes through the chamber partition plate. The contact wheel 75 is rotatably mounted at the tail end (bottom end) of the drive rod 74. The contact wheel 75 contacts the outer contour of the drive wheel 73. The drive wheel 73 can lift the contact wheel 75 or push it down. The bearing plate 76 is fixedly mounted at the head of the drive rod 74. The bottom of the bearing plate 76 is fixedly mounted with a guide rod 9. A sliding bearing 10 is installed at the connection between the upper chamber 4 and the lower chamber 5. The drive rod 74 and the guide rod 9 are slidably connected to the sliding bearing 10 respectively. The drive rod 74 and the guide rod 9 can move up and down. The sliding bearing 10 can reduce the friction between the drive rod 74 and the guide rod 9.

[0020] In addition, a spring 11 is installed between the inner top wall of the lower chamber 5 and the contact wheel 75 to increase the elasticity of the contact wheel 75 when it falls, so that the contact wheel 75 can contact the drive wheel 73 when working, so that the drive rod 74, the contact wheel 75 and the bearing plate 76 can fall smoothly to complete the tea turning work. The spring 11 passes through the drive rod 74, and the two ends of the spring 11 abut against the wheel seat of the contact wheel 75 and the inner top wall of the lower chamber 5, respectively.

[0021] Specifically, a drying dish 8 is placed on top of the carrying tray 76. The drying dish 8 contains tea leaves, and the port of the drying dish 8 is fitted with a lid that mates with the drying dish 8. The lid is not shown in the attached drawings.

[0022] In this embodiment, the drying dish 8 containing tea leaves is placed on the support plate 76 and fixed. The tea leaves should not be filled too full, allowing for some space to turn over. The drying dish 8 is made of high-strength heat-conducting material, preferably copper, to avoid the impact of fragile materials on service life. The forced-air drying box 1 can conduct the generated air heat to the drying dish 8. The reduction motor 71 is started, and the rotating shaft 72 and drive wheel 73 rotate. The convex corner 732 rotates to lift the contact wheel 75, drive rod 74 and support plate 76. When the convex corner 732 rotates to disengage from the contact wheel 75, the drying dish 8 falls into the air, and the tea leaves bounce and turn in the drying dish 8, so that the tea leaves can be evenly heated and dried.

[0023] Please see Figure 1 and Figure 4The top of the support plate 76 is provided with a limiting component 12 for positioning the drying dish 8. The limiting component 12 includes a positioning strip 121, a stop strip 122 and a mounting screw 123. The positioning strip 121 is fixedly connected to the top of the support plate 76. The positioning strip 121 is evenly distributed on the top of the support plate 76 and abuts against the outer periphery of the drying dish 8, which can prevent the drying dish 8 from falling outside the support plate 76 during the pop-up process. The mounting screw 123 passes through the stop strip 122 and is threadedly connected to the positioning strip 121 to fix the stop strip 122. The stop strip 122 contacts the positioning strip 121 and the upper edge of the drying dish 8, which prevents the drying dish 8 from completely detaching from the positioning strip 121. When drying tea, the drying dish 8 is inserted from top to bottom between the positioning strips 121.

[0024] Specific steps for testing the moisture content of tea leaves: 1) Weigh the sample tea leaves before drying. Place the sample tea leaves into the drying dish 8 in the electronic scale 3, and record the mass of the sample tea leaves and the drying dish 8 before drying. ; 2) Drying and cooling: Place the drying dish 8 containing the sample tea leaves in the forced-air drying oven 1 for drying, and then remove it from the forced-air drying oven 1 and place it in the desiccator 2 for cooling. 3) Weighing after drying: Place the drying dish 8 containing the sample tea in the desiccator 2 into the electronic scale 3 and weigh it. Record the mass of the sample tea and the drying dish 8 after drying. ; 4) Calculate the moisture content of the tea leaves using the formula. ,in The mass of baking dish 8.

[0025] The beneficial effects of the above embodiments are as follows: This tea moisture content detection device, through the setting of a turning component 7, after the turning component 7 is used, under the start of the reduction motor 71, the drive wheel 73 rotates, gradually lifting the contact wheel 75, the drive rod 74 on the contact wheel 75, the support plate 76, and the drying dish 8. After the convex corner 732 disengages from the contact wheel 75, it will fall back onto the rotating body 731 under gravity. After hitting the rotating body 731, the tea in the drying dish 8 will bounce and turn, thus turning the tea at the bottom of the drying dish 8, heating and drying that part of the tea. The tea is not turned again immediately after being turned, ensuring uniform and effective drying of the tea, thereby improving the accuracy of the tea moisture content detection.

[0026] The blower drying oven 1, dryer 2, electronic scale 3, and geared motor 71 mentioned in the text are all electrically connected to the main controller and power supply. The main controller can be a conventional known device such as a computer that can be used for control, and the existing publicly available power connection technology will not be described in detail in the text.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tea moisture content detection device, comprising a forced-air drying oven (1), a dryer (2), and an electronic scale (3), wherein the forced-air drying oven (1) has an upper chamber (4) and a lower chamber (5), and a mounting frame (6) is fixedly installed on the inner bottom wall of the lower chamber (5), characterized in that: The blower drying oven (1), upper chamber (4), and lower chamber (5) are equipped with a turning component (7) to ensure the authenticity of the tea moisture content detection. The flipping assembly (7) includes a geared motor (71), a rotating shaft (72), a drive wheel (73), a drive rod (74), a contact wheel (75), and a support plate (76). The geared motor (71) is fixedly installed on the inner bottom wall of the lower chamber (5). The rotating shaft (72) is fixedly installed on the output shaft of the geared motor (71). The drive wheel (73) is fixedly connected to the outer surface of the rotating shaft (72). The drive rod (74) is located at the connection between the upper chamber (4) and the lower chamber (5). The contact wheel (75) is installed at the tail of the drive rod (74) and contacts the outer contour of the drive wheel (73). The support plate (76) is fixedly installed at the head of the drive rod (74).

2. The tea moisture content detection device according to claim 1, characterized in that: The rotating shaft (72) is rotatably connected in the mounting bracket (6), and the drive wheel (73) is composed of a rotating body (731) and a convex corner (732), the convex corner (732) being horn-shaped.

3. The tea moisture content detection device according to claim 1, characterized in that: A baking dish (8) is placed on top of the support plate (76), and the port of the baking dish (8) is fitted with a lid that mates with the baking dish (8).

4. The tea moisture content detection device according to claim 1, characterized in that: A guide rod (9) is fixedly installed at the bottom of the bearing plate (76), and a sliding bearing (10) is installed at the connection between the upper chamber (4) and the lower chamber (5). The drive rod (74) and the guide rod (9) are both slidably connected to the sliding bearing (10).

5. The tea moisture content detection device according to claim 4, characterized in that: A spring (11) is installed between the inner top wall of the lower chamber (5) and the contact wheel (75). The spring (11) passes through the drive rod (74), and the two ends of the spring (11) abut against the wheel seat of the contact wheel (75) and the inner top wall of the lower chamber (5), respectively.

6. The tea moisture content detection device according to claim 3, characterized in that: The top of the carrier plate (76) is provided with a limiting component (12) for positioning the baking dish (8). The limiting component (12) includes a positioning strip (121), a stop strip (122) and a mounting screw (123). The positioning strip (121) is fixedly connected to the top of the carrier plate (76), and the mounting screw (123) passes through the stop strip (122) and is threadedly connected to the positioning strip (121).

7. The tea moisture content detection device according to claim 6, characterized in that: The positioning strip (121) is evenly distributed on the top of the support plate (76) and abuts against the outer periphery of the baking dish (8). The baffle (122) contacts the positioning strip (121) and the upper edge of the baking dish (8).

8. The tea moisture content detection device according to claim 1, characterized in that: Both the upper chamber (4) and the lower chamber (5) are equipped with door (13) at their front ends.

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