Tea vending machine with heat preservation and moisture retention

Abstract

This utility model relates to the field of automatic vending equipment technology, and discloses a tea vending machine with heat preservation and humidity control. It includes a cabinet, with an adjustment mechanism installed on the top of the cabinet for adjusting the airflow angle. Vacuum insulation panels are fixedly connected to the left, right, and rear sides of the inner wall of the cabinet, and mounting mechanisms are installed on the inner sides of each vacuum insulation panel for convenient installation and disassembly of components. The adjustment mechanism includes a partition. This tea vending machine has an automatic heat preservation and humidity control function. It activates cooling when the temperature exceeds 10 degrees Celsius and humidifies when the humidity is below 80%, ensuring the tea is in a suitable environment and guaranteeing that the tea's quality remains unchanged.

Description

Technical Field

[0001] This utility model relates to the field of tea vending technology, and in particular to a tea vending machine that keeps tea warm and moist. Background Technology

[0002] Vending machines are automated retail devices typically used to sell drinks and snacks in public places; however, there are no dedicated tea vending machines on the market yet. For tea lovers, buying a pound or more of tea at once carries some risk, as the tea purchased may not suit their taste. To facilitate consumers' experimentation and for convenient travel, there is a broad and real market demand for small-volume tea packages (one or two ounces).

[0003] Since temperature and humidity significantly affect the quality of green tea, temperature- and humidity-controlled tea vending machines, equipped with constant temperature and humidity functions, can effectively maintain the quality of tea while providing sales services. By precisely controlling the temperature and humidity within the tea storage unit, they prevent tea from deteriorating and losing flavor due to dryness and drastic temperature changes, allowing consumers to always purchase fresh and consistently high-quality tea. Existing vending machines suffer from issues such as inadequate sealing of the doors and pipe penetrations, allowing outside air to easily seep in, and significant temperature and humidity differences between corner areas and the central area. Utility Model Content

[0004] Therefore, this utility model provides a tea vending machine that keeps tea warm and moist, aiming to provide people with fresh, small-packaged tea products. The technical solution adopted is as follows.

[0005] A tea vending machine with heat preservation and moisture retention includes a cabinet. An adjustment mechanism is installed on the top of the cabinet to adjust the airflow angle. Vacuum insulation panels are fixedly connected to the left, right, and rear sides of the inner wall of the cabinet. Installation mechanisms are installed on the inner sides of each vacuum insulation panel to facilitate the installation and disassembly of components. The adjustment mechanism includes a partition fixedly connected to the upper middle part of the inner wall of the cabinet. A cooling fan is installed on the top of the cabinet. Multiple ventilation pipes are equidistantly connected to the right side of the outer wall of the cooling fan. A filter is fixedly connected to the inner side of the partition. A housing is fixedly connected to the left and right sides of the bottom of the partition. A fixing frame is fixedly connected to the middle of the inner wall of the housing, and a drive assembly is installed on the outer wall of the fixing frame.

[0006] As a further description of the above technical solution:

[0007] The drive assembly includes a motor, which is fixedly connected to the middle of the inner wall of the housing. A connecting frame is fixedly connected to the output end of the motor. A fixing rod is fixedly connected to the middle of the outer wall of the connecting frame. The fixing rod is connected to another connecting frame. The connecting frame is rotatably connected to the inner wall of the fixing frame. A crank is rotatably connected to both the upper and lower sides of the inner wall of the connecting frame. A crank is rotatably connected to the other side of the inner wall of the crank.

[0008] As a further description of the above technical solution:

[0009] A rotating shaft is fixedly connected to the outer wall of the crank two. The rotating shaft is rotatably connected to the inner wall of the outer casing. A wind guide plate is fixedly connected to the end of the rotating shaft.

[0010] As a further description of the above technical solution:

[0011] The installation mechanism includes a fixing block, which is fixedly connected to the middle of the left and right sides of the inner wall of the cabinet. A slider is slidably connected to the inner wall of the fixing block, and a temperature and humidity sensor is fixedly connected to the outer wall of the slider.

[0012] As a further description of the above technical solution:

[0013] The top wall of the fixed block is provided with a sliding groove, and multiple sliding rods are fixedly connected at equal intervals to the inner bottom wall of the sliding groove. A transmission component is installed on the inner wall of the sliding groove.

[0014] As a further description of the above technical solution:

[0015] The transmission assembly includes a bolt, which is threadedly connected to the inner wall of the fixing block. A limit block is rotatably connected to the outer wall of the bolt. The limit block is slidably connected to the inner wall of the slide groove, the outer wall of the slide rod, and the outer wall of the slider.

[0016] As a further description of the above technical solution:

[0017] A support frame is fixedly connected to the inner bottom wall of the cabinet. Multiple grid panels are installed at equal intervals on the inner side of the support frame. An electric push rod is installed on the rear side of the top wall of the grid panel. A long plate is fixedly connected to the output end of the electric push rod. A tea box is slidably connected to the front side of the top wall of the grid panel.

[0018] As a further description of the above technical solution:

[0019] A humidifier is installed on the lower inner side of the vacuum insulation panel, an operation panel is installed on the middle front side of the outer wall of the cabinet, and a door panel is rotatably connected to the lower front side of the outer wall of the cabinet.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when the temperature is higher than 10 degrees Celsius, the cooling is activated. After the air cooler is activated, the cold air is blown into the cavity between the partition and the cabinet through the ventilation pipe, and then blown into the cabinet through the filter screen. The filter screen can filter impurities in the air. Then the motor is activated, the motor drives the connecting frame, the connecting frame pulls crank one, crank one pulls crank two, so that crank two rotates along the shaft, thereby rotating the air guide plate and adjusting the blowing angle to prevent the blowing angle from being fixed and the airflow from being uneven, which would cause temperature deviation in the cabinet and affect the heat preservation and humidity retention effect. When the humidity is lower than 80%, the humidification function is activated. The humidifier directly sends water mist into the cabinet through the fan, and uses the evaporation of water mist to increase the relative humidity in the cabinet.

[0022] 2. In this utility model, when installing the temperature and humidity sensor, first rotate the bolt to move it upward and drive the limiting block to move upward along the slide rod. Then slide the slider to the middle position of the inner wall of the fixed block. Then rotate the bolt in the opposite direction to move the bolt towards the inner wall of the fixed block, thereby driving the limiting block to slide down along the slide rod. This makes the limiting block lock the outer walls of the slider. The operation is convenient, a stable connection is formed, and it is easy to install and disassemble, thus improving maintenance efficiency. Attached Figure Description

[0023] Figure 1 This is a perspective view of the heat-insulating and moisture-retaining tea vending machine proposed in this utility model;

[0024] Figure 2 This is a front view of the heat-insulating and moisture-retaining tea vending machine proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the heat-insulating and moisture-retaining tea vending machine proposed in this utility model.

[0026] Figure 4 This is a structural exploded view of the heat-insulating and moisture-retaining tea vending machine proposed in this utility model.

[0027] Figure 5 This is a partial structural diagram of the heat-insulating and moisture-retaining tea vending machine proposed in this utility model;

[0028] Figure 6 This is a partial structural exploded view of the heat-insulating and moisture-retaining tea vending machine proposed in this utility model.

[0029] The components include: 1. Cabinet; 2. Adjustment mechanism; 201. Outer shell; 202. Drive assembly; 2021. Motor; 2022. Crank one; 2023. Crank two; 2024. Connecting frame; 203. Filter screen; 204. Partition; 205. Air guide plate; 206. Fixing rod; 207. Rotating shaft; 208. Fixing frame; 209. Air cooler; 210. Ventilation duct; 3. Installation mechanism; 301. Transmission assembly; 3011. Bolt; 3012. Limiting block; 302. Sliding block; 303. Sliding rod; 304. Sliding groove; 305. Fixing block; 306. Temperature and humidity sensor; 4. Control panel; 5. Vacuum insulation panel; 6. Door panel; 7. Electric push rod two; 8. Long plate; 9. Grille plate; 10. Support frame; 11. Tea box; 12. Humidifier. Detailed Implementation

[0030] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] Reference Figure 3 , Figure 4 and Figure 5This utility model provides an embodiment of a heat-insulating and moisture-retaining tea vending machine, comprising a cabinet 1, an adjustment mechanism 2 installed on the top of the cabinet 1 for adjusting the airflow angle, and vacuum insulation panels 5 fixedly connected to the left, right, and rear sides of the inner wall of the cabinet 1. The vacuum insulation panels 5 are made of Yinlin Ultrathin-VIP, using a customized barrier film and adsorption material, supporting a temperature inside the cabinet 1 of -20℃ for 10 hours without dropping below 0℃. Installation mechanisms 3 are installed on the inner side of the vacuum insulation panels 5 for convenient installation and disassembly of components; the adjustment mechanism 2 includes... The unit includes a partition 204, which is fixedly connected to the upper part of the inner wall of the cabinet 1. A cooler 209 is installed on the top of the cabinet 1. The cooler 209 is a compressor-type cooler, specifically a Danfoss SC15C. It achieves efficient cooling by driving the refrigerant (such as R404A or R290) to circulate and undergo phase change between the evaporator and condenser via a compressor. Multiple ventilation pipes 210 are equidistantly connected to the right side of the cooler 209's outer wall. A filter 203 is fixedly connected to the inner side of the partition 204. A housing 201 is fixedly connected to the left and right sides of the bottom of the partition 204. A fixed frame 208 is fixedly connected to the middle of the inner wall of housing 201, and a drive assembly 202 is installed on the outer wall of the fixed frame 208. The drive assembly 202 includes a motor 2021, which is a PM42BYG228, an open-loop control actuator that converts electrical pulse signals into angular and linear displacement. Current is passed through the stator winding in a specific sequence (such as A→B→C→A…). Each time the current is switched, the direction of the stator magnetic field changes, and the rotor rotates by a fixed angle (step angle). The motor 2021 is fixedly connected to the middle of the inner wall of housing 201. The output of the motor 2021… A connecting frame 2024 is fixedly connected to the end. A fixing rod 206 is fixedly connected to the middle of the outer wall of the connecting frame 2024. The fixing rod 206 is connected to another connecting frame 2024. The connecting frame 2024 is rotatably connected to the inner wall of the fixing frame 208. A crank 1 2022 is rotatably connected to both the upper and lower sides of the inner wall of the connecting frame 2024. A crank 223 is rotatably connected to the other side of the inner wall of the crank 1 2022. A rotating shaft 207 is fixedly connected to the outer wall of the crank 223. The rotating shaft 207 is rotatably connected to the inner wall of the outer shell 201. A guide plate 205 is fixedly connected to the end of the rotating shaft 207.

[0032] Specifically, the temperature and humidity sensor 306 is an integrated temperature and humidity device that can simultaneously measure ambient temperature and relative humidity. When the temperature and humidity sensor 306 detects a temperature higher than 10 degrees Celsius, it activates cooling and immediately sends feedback to the equipment control system. When the temperature exceeds 10 degrees Celsius, the air cooler 209 is activated. The cool air is guided through the ventilation duct 210 into the cavity between the partition 204 and the cabinet 1. Subsequently, the cool air continues to be blown into the cabinet 1 through the filter 203. The filter 203 filters air impurities to ensure that the air blown into the cabinet 1 is clean. Then, the motor 20... When motor 21 is activated, it connects to connecting frame 2024 via a transmission device. Connecting frame 2024 pulls crank 1 2022, which in turn pulls crank 2 2023. Crank 2 2023 rotates along shaft 207, thereby driving the rotation of air guide plate 205. In this way, the angle of air guide plate 205 can be adjusted, thus avoiding the problem of a fixed blowing angle. This prevents uneven airflow circulation caused by a fixed blowing angle, which could lead to temperature deviations inside cabinet 1. By adjusting the angle of air guide plate 205, even airflow distribution can be ensured, thus reducing the temperature inside cabinet 1. The temperature is kept below 10 degrees Celsius to maintain a balanced internal temperature for cabinet 1. When the ambient humidity falls below 80%, the humidifier 12 automatically activates its humidification function. The humidifier 12 uses a sophisticated mechanical device to break down stored water molecules into extremely fine water mist particles, forming ultrafine water mist and cool mist. Subsequently, the built-in fan operates, evenly blowing this fine water mist into the interior space of cabinet 1, effectively increasing the relative humidity level inside cabinet 1 and ensuring that the ambient humidity inside cabinet 1 remains within a suitable range. The vacuum insulation panel 5 is filled with... The vacuum chamber is filled with porous materials with low thermal conductivity, such as ultrafine glass wool, aerogel, and open-cell foam. These materials support the vacuum chamber and prevent the chamber from collapsing due to external pressure. They also have extremely low thermal conductivity, reducing solid-state conduction. The outer layer is a multi-layer composite film, such as aluminum-plastic composite film or metal-plated film, which has extremely high gas barrier properties to prevent air and moisture from penetrating and ensure that the core material is kept in a high vacuum state for a long time. The inner layer is encapsulated with trace amounts of adsorbents, such as molecular sieves and activated carbon, to absorb residual gases and moisture, extend the vacuum life, and prevent thermal conductivity from increasing due to trace amounts of gas. This achieves efficient heat preservation and maintains a stable temperature inside the cabinet.

[0033] Reference Figure 1 , Figure 3 and Figure 6, the installation mechanism 3 includes a fixed block 305. The fixed block 305 is fixedly connected to the middle parts of the left and right inner walls of the cabinet body 1. A slider 302 is slidably connected to the inner wall of the fixed block 305. The outer wall of the slider 302 is fixedly connected to a temperature and humidity sensor 306. The temperature and humidity sensor 306 is Zhongke Yinhe Core GXHT30, which adopts the MEMS process to integrate a humidity-sensitive element and a temperature sensing element on a silicon-based CMOS wafer, reducing multi-chip interference and achieving high precision of ±0.3°C / ±3%RH; a chute 304 is opened on the top wall of the fixed block 305. A plurality of slide bars 303 are fixedly connected to the inner bottom wall of the chute 304 at equal intervals. A transmission component 301 is installed on the inner wall of the chute 304; the transmission component 301 includes a bolt 3011. The bolt 3011 is threadedly connected to the inner wall of the fixed block 305. A limiting block 3012 is rotatably connected to the outer wall of the bolt 3011. The limiting block 3012 is slidably connected to the inner wall of the chute 304. The limiting block 3012 is slidably connected to the outer wall of the slide bar 303. The limiting block 3012 is slidably connected to the outer wall of the slider 302;

[0034] Specifically, during the installation process of the temperature and humidity sensor 306, first rotate the bolt 3011 counterclockwise to make it move upward. This action will cause the limiting block 3012 to slide upward along the slide bar 303. Then, slide the slider 302 to the middle position of the inner wall of the fixed block 305. After completing this step, rotate the bolt 3011 clockwise to make it move toward the inner wall of the fixed block 305. As the bolt 3011 moves, the limiting block 3012 will also move downward along the slide bar 303. Finally, the limiting block 3012 will clamp the outer walls on both sides of the slider 302, thus forming a stable connection. This installation method is easy to operate, not only facilitating the installation and disassembly process, but also significantly improving the maintenance efficiency.

[0035] Refer to Figure 1 、 Figure 2 and Figure 3 , a support frame 10 is fixedly connected to the inner bottom wall of the cabinet body 1. A plurality of grille plates 9 are installed at equal intervals inside the support frame 10. An electric push rod two 7 is installed at the rear side of the top wall of the grille plate 9. The electric push rod two 7 is MK67-24-A4-220, with a thrust of up to 6000N, which can be used for heavy-duty cargo channels and multi-container linkage pushing (such as the synchronous movement of a whole row of tea cans); the stroke range is 50 - 300mm, supporting segmented pushing (such as pre-pushing 50mm first and then precisely pushing to the pick-up port). The output end of the electric push rod two 7 is fixedly connected to a long plate 8. A tea box 11 is slidably connected to the front side of the top wall of the grille plate 9. A humidifier 12 is installed in the middle and lower part inside the vacuum insulation board 5. The humidifier 12 is MJJSQ06DY, which breaks water into ultra-fine water mist and cold mist with a diameter of 1 - 5 microns through high-frequency vibration, usually at a frequency of 1.7MHz, without heating. An operation panel 4 is installed in the middle of the front side of the outer wall of the cabinet body 1. A door panel 6 is rotatably connected to the middle and lower part of the front side of the outer wall of the cabinet body 1;

[0036] Specifically, the numerous holes on the grille panel 9 facilitate the passage of cool air from the upper to the lower layers, enhancing the cooling effect. The temperature and humidity sensor 306 activates cooling when the temperature exceeds 10 degrees Celsius and humidification when the humidity falls below 80%. The humidifier 12 directly delivers water mist into the cabinet 1 via a fan, using the evaporation of the water mist to increase the relative humidity inside the cabinet 1. The tea is packaged in boxes to prevent it from being crushed and affecting its attractive appearance. The tea boxes 11 are all 25-gram (one tael) in size. The door panel 6 is made of high-strength ABS plastic and thin steel plate, combining lightweight design for easy manual opening and impact resistance. To prevent damage from violence, when the tea vending machine is in operation, the device is started via the control panel 4. The electric push rod 7 pushes the long plate 8 forward, and the long plate 8 pushes the tea box 11, causing the tea box 11 at the front of the support frame 10 to fall onto the bottom wall of the cabinet 1. Then, the door panel 6 can be pushed to take out the tea. After taking out the tea box 11, the door panel 6 is connected to the cabinet 1 via a hinge to ensure that the opening angle is sufficient for the user to reach out and take the goods. After the user opens the door to take the goods, the door panel 6 automatically resets and closes due to gravity when the user releases their hand, without the need for manual pushing and closing, which improves the convenience of operation and also prevents external foreign objects, such as dust, rainwater, and insects, from entering the machine.

[0037] Working principle: When the temperature and humidity sensor 306 detects that the temperature is higher than 10 degrees Celsius, it starts the cooling function and immediately sends feedback to the equipment control system, which starts the air cooler 209. The cold air is blown into the cavity between the partition 204 and the cabinet 1 through the ventilation pipe 210, and then blown into the cabinet 1 through the filter screen 203. The filter screen 203 can filter impurities in the air. Then the motor 2021 is started. The motor 2021 drives the connecting frame 2024, which pulls the first crank 2022. The first crank 2022 then pulls the second crank 2023, causing the second crank 2023 to rotate along the rotating shaft 207, thereby rotating the air guide plate 205 and adjusting the blowing angle to prevent the blowing angle from being fixed and the airflow from being uneven, which would cause temperature deviation in the cabinet 1. When the humidity is lower than 80%, the humidification function is activated. The humidifier 12 disperses the water into ultra-fine water mist and cold mist, and sends the water mist into the cabinet 1 through the fan. The relative humidity in the cabinet 1 is increased by the evaporation of the water mist.

[0038] The temperature and humidity sensor 306 is an integrated temperature and humidity sensor that can simultaneously measure ambient temperature and relative humidity. When installing the temperature and humidity sensor 306, first rotate the bolt 3011 to move it upward and drive the limiting block 3012 to move upward along the slide rod 303. Then slide the slider 302 to the middle position of the inner wall of the fixing block 305. Then rotate the bolt 3011 in the opposite direction to move it towards the inner wall of the fixing block 305, thereby driving the limiting block 3012 to slide down along the slide rod 303. This allows the limiting block 3012 to lock onto both sides of the outer wall of the slider 302. The operation is convenient, a stable connection is formed, and installation and disassembly are easy, improving maintenance efficiency.

[0039] 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. 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 tea vending machine for keeping tea leaves warm and moist, comprising a cabinet (1), characterized in that: An adjustment mechanism (2) is installed on the top of the cabinet (1). The adjustment mechanism (2) is used to adjust the airflow angle. Vacuum insulation panels (5) are fixedly connected to the left, right and rear sides of the inner wall of the cabinet (1). An installation mechanism (3) is installed on the inner side of the vacuum insulation panel (5). The installation mechanism (3) is used to facilitate the installation and disassembly of components. The adjustment mechanism (2) includes a partition (204), which is fixedly connected to the upper part of the inner wall of the cabinet (1). A cooler (209) is installed on the top of the cabinet (1). Multiple ventilation pipes (210) are equidistantly connected to the right side of the outer wall of the cooler (209). A filter screen (203) is fixedly connected to the inner side of the partition (204). A shell (201) is fixedly connected to the left and right sides of the bottom of the partition (204). A fixing frame (208) is fixedly connected to the middle of the inner wall of the shell (201). A drive assembly (202) is installed on the outer wall of the fixing frame (208).

2. The tea vending machine with heat preservation and moisture retention according to claim 1, characterized in that: The drive assembly (202) includes a motor (2021), which is fixedly connected to the middle of the inner wall of the housing (201). The output end of the motor (2021) is fixedly connected to a connecting frame (2024). A fixing rod (206) is fixedly connected to the middle of the outer wall of the connecting frame (2024). The fixing rod (206) is connected to another connecting frame (2024). The connecting frame (2024) is rotatably connected to the inner wall of the fixing frame (208). A crank (2022) is rotatably connected to both the upper and lower sides of the inner wall of the connecting frame (2024). A crank (2023) is rotatably connected to the other side of the inner wall of the crank (2022).

3. The tea vending machine with heat preservation and moisture retention according to claim 2, characterized in that: The outer wall of the crank two (2023) is fixedly connected to a rotating shaft (207), which is rotatably connected to the inner wall of the outer shell (201). The end of the rotating shaft (207) is fixedly connected to a wind guide plate (205).

4. The tea vending machine with heat preservation and moisture retention according to claim 1, characterized in that: The installation mechanism (3) includes a fixing block (305), which is fixedly connected to the middle of the left and right sides of the inner wall of the cabinet (1). A slider (302) is slidably connected to the inner wall of the fixing block (305), and a temperature and humidity sensor (306) is fixedly connected to the outer wall of the slider (302).

5. The tea vending machine with heat preservation and moisture retention according to claim 4, characterized in that: The top wall of the fixed block (305) is provided with a sliding groove (304), and a plurality of sliding rods (303) are fixedly connected at equal intervals on the inner bottom wall of the sliding groove (304). A transmission assembly (301) is installed on the inner wall of the sliding groove (304).

6. The tea vending machine with heat preservation and moisture retention according to claim 5, characterized in that: The transmission assembly (301) includes a bolt (3011) which is threaded to the inner wall of the fixing block (305). The outer wall of the bolt (3011) is rotatably connected to a limiting block (3012). The limiting block (3012) is slidably connected to the inner wall of the slide groove (304). The limiting block (3012) is slidably connected to the outer wall of the slide rod (303). The limiting block (3012) is slidably connected to the outer wall of the slider (302).

7. The tea vending machine with heat preservation and moisture retention according to claim 1, characterized in that: The inner bottom wall of the cabinet (1) is fixedly connected to a support frame (10). Multiple grid plates (9) are installed at equal intervals on the inner side of the support frame (10). An electric push rod (7) is installed on the rear side of the top wall of the grid plate (9). A long plate (8) is fixedly connected to the output end of the electric push rod (7). A tea box (11) is slidably connected to the front side of the top wall of the grid plate (9).

8. The tea vending machine with heat preservation and moisture retention according to claim 1, characterized in that: A humidifier (12) is installed on the lower inner side of the vacuum insulation panel (5), an operation panel (4) is installed on the middle front side of the outer wall of the cabinet (1), and a door panel (6) is rotatably connected to the lower front side of the outer wall of the cabinet (1).

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