High-temperature sterilization temperature control device of cold boiled water dispenser
By introducing a stirring shaft and transmission mechanism into the boiled water dispenser, the problem of uneven heating was solved, achieving uniform heating and efficient sterilization of water, thus improving water quality and equipment operational stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO KEYUANMEI COMMERCIAL EQUIP CO LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-05-19
AI Technical Summary
Existing boiled water dispensers lack a stirring and heating component in their high-temperature sterilization and temperature control devices, resulting in uneven heating, reduced water quality, and localized overheating areas that damage the water quality and taste.
Design a device comprising a stirring shaft, an electric heating rod, a reciprocating screw, and a drive motor. The stirring shaft drives the electric heating rod to rotate, and combined with the reciprocating screw and synchronous wheel transmission mechanism, it achieves uniform heating and quantitative treatment of water.
It achieves uniform heating of water, improves sterilization efficiency, ensures water quality and taste, reduces energy consumption, and improves equipment stability and safety.
Smart Images

Figure CN224251180U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drinking water treatment equipment technology, and in particular to a high-temperature sterilization and temperature control device for a boiled water dispenser. Background Technology
[0002] The high-temperature sterilization and temperature control device for boiled water dispensers is a functional component used in boiled water dispensers. This device can heat the water in the dispenser to a high temperature, usually close to or reaching 100°C, by heating the water. The high temperature is used to kill bacteria, viruses and other microorganisms that may be present in the water, thereby ensuring the hygiene and safety of drinking water and allowing users to drink sterilized boiled water.
[0003] Existing high-temperature sterilization and temperature control devices for boiled water dispensers are relatively basic in design and simple in structure, especially lacking crucial stirring and heating components. These devices rely primarily on fixed heating elements, such as a bottom heating plate or built-in electric heating tube, for heating. Electricity passes through the heating element to generate heat, and the water relies solely on natural convection to transfer heat. Under natural convection, water near the heating element heats up first and flows upwards due to density changes. However, due to the lack of external stirring, the water flow is slow and limited, causing a large accumulation of heat around the heating element, forming localized overheating areas. This localized overheating can excessively damage heat-sensitive nutrients in the water, triggering chemical reactions such as mineral precipitation, and reducing the water's quality and taste. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a high-temperature sterilization and temperature control device for a boiled water dispenser.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A high-temperature sterilization and temperature control device for a boiled water dispenser includes a primary filter box, a sterilization box, a functional box, and a water storage tank. The sterilization box is connected to the primary filter box and the water storage tank via connecting pipes. A stirring shaft is rotatably mounted inside the sterilization box, and multiple electric heating rods are mounted on the stirring shaft. The functional box is connected to the sterilization box via two functional pipes. The functional box contains a movable chamber and a rotating chamber. A piston plate is mounted in the movable chamber, and a reciprocating screw is mounted in the rotating chamber. The piston plate is connected to the reciprocating screw via a connecting mechanism. A drive motor is mounted on the functional box, and the drive motor is connected to the reciprocating screw via a rotating mechanism. A transmission shaft is mounted on the sterilization box via a support frame. The transmission shaft is connected to the reciprocating screw and the stirring shaft via a transmission mechanism. A male connector is mounted on the stirring shaft via a female connector. A T-shaped insert is slidably inserted through the male connector via an elastic mechanism. An annular groove is provided on the female connector.
[0007] Preferably, the connecting mechanism includes a connecting frame threaded onto the reciprocating lead screw, and the end of the connecting frame is fixedly connected to the piston plate.
[0008] Preferably, the rotating mechanism includes a drive gear mounted on the output shaft of the drive motor, and the reciprocating screw is provided with a transmission gear that meshes with the drive gear.
[0009] Preferably, the transmission mechanism includes synchronous pulleys mounted on the transmission shaft, reciprocating lead screw, and stirring shaft, with corresponding synchronous pulleys connected by a synchronous belt.
[0010] Preferably, the elastic mechanism includes a spring sleeved on the outside of the T-shaped plug rod, with both ends of the spring connected to the outer wall of the head of the T-shaped plug rod and the outer wall of the male connector, respectively.
[0011] Preferably, the synchronous pulley on the stirring shaft is smaller than the synchronous pulley on the drive shaft, and both connecting pipes are equipped with one-way valves.
[0012] The beneficial effects of this utility model are:
[0013] 1. The stirring shaft drives the electric heating rod to rotate, making the heating more uniform and accelerating the water heating process. It can reach the temperature required for sterilization in a shorter time, thus improving the sterilization efficiency and effect.
[0014] 2. By driving a reciprocating screw through a drive motor, the reciprocating motion of the piston plate is controlled, thereby precisely controlling the intake and discharge of water and realizing a quantitative and orderly water treatment process.
[0015] 3. The unique connection design of the male and female connectors, combined with the flexible mechanism, ensures that the power supply lines of the electric heating rods will not become tangled when the stirring shaft rotates, thus improving the stability and safety of the equipment operation.
[0016] 4. The transmission mechanism consisting of a synchronous pulley and a synchronous belt enables the drive motor to simultaneously drive the reciprocating screw and the stirring shaft, simplifying the transmission structure and reducing energy loss.
[0017] 5. The synchronous pulley on the stirring shaft is smaller than the synchronous pulley on the drive shaft, so that the speed of the reciprocating screw is less than the speed of the stirring shaft. This allows for slow water absorption and rapid stirring, heating, and sterilization, ensuring a highly efficient and thorough sterilization process. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a high-temperature sterilization and temperature control device for a boiled water dispenser proposed in this utility model;
[0019] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A;
[0020] Figure 3for Figure 1 A schematic diagram of the structure viewed from below;
[0021] Figure 4 for Figure 3 A schematic diagram of the vertical section structure;
[0022] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B;
[0023] Figure 6 for Figure 4 A magnified schematic diagram of the structure at point C.
[0024] In the diagram: 1. Primary filter box, 2. Inlet pipe, 3. Sterilization box, 4. Functional box, 5. Functional pipe, 6. Support frame, 7. Drive shaft, 8. Water storage tank, 9. Reciprocating screw, 10. Drive motor, 11. Drive gear, 12. Transmission gear, 13. Synchronous pulley, 14. Synchronous belt, 15. Connecting pipe, 16. Drain pipe, 17. Stirring shaft, 18. Electric heating rod, 19. Moving chamber, 20. Piston plate, 21. Rotating chamber, 22. Connecting frame, 23. Wire, 24. Female connector, 25. Male connector, 26. T-shaped plug, 27. Spring, 28. Annular groove. Detailed Implementation
[0025] 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.
[0026] Reference Figure 1-6 A high-temperature sterilization and temperature control device for a boiled water dispenser includes a primary filter box 1, a sterilization box 3, a functional box 4, and a water storage tank 8. The primary filter box 1 is equipped with an inlet pipe 2 connected to a water pipe, and contains a filter assembly for primary water filtration. The sterilization box 3 is connected to the primary filter box 1 and the water storage tank 8 via a connecting pipe 15. A drain pipe 16 is installed at the bottom of the water storage tank 8 for discharging boiled water. The water storage tank 8 also contains an assembly for cooling the sterilized, high-temperature water. Specific components are not disclosed in this design; please refer to existing technologies for details.
[0027] The sterilization chamber 3 is equipped with a rotating stirring shaft 17, which has multiple electric heating rods 18. The functional box 4 is connected to the sterilization chamber 3 through two functional tubes 5. The functional box 4 has a movable chamber 19 and a rotating chamber 21. The movable chamber 19 has a piston plate 20, and the rotating chamber 21 has a reciprocating screw 9. The piston plate 20 is connected to the reciprocating screw 9 through a connecting mechanism. The functional box 4 is equipped with a drive motor 10, which is connected to the reciprocating screw 9 through a rotating mechanism. The sterilization chamber 3 is equipped with a transmission shaft 7 through a support frame 6. The transmission shaft 7 is connected to the reciprocating screw 9 and the stirring shaft 17 through a transmission mechanism. The stirring shaft 17 has a male connector 25 through a female connector 24. The male connector 25, together with components such as wires 23, is responsible for power supply. The female connector 24 is connected to the electric heating rods 18 on the stirring shaft 17 through wires 23 for power supply and heating.
[0028] A T-shaped insert 26 is slidably inserted through the male connector 25 via an elastic mechanism, and an annular groove 28 is provided on the female connector 24. The elastic mechanism includes a spring 27 sleeved on the outside of the T-shaped insert 26, with both ends of the spring 27 connected to the outer wall of the head of the T-shaped insert 26 and the outer wall of the male connector 25, respectively. The elastic potential energy provided by the spring 27 enables the dragging of the head of the T-shaped insert 26, ensuring that its stem is within the annular groove 28, thereby preventing the male connector 25 from detaching from the female connector 24. Furthermore, referring to the figure, the male connector 25 and female connector 24 have a perfectly circular design, which prevents the male connector 25 from rotating when the female connector 24 rotates with the stirring shaft 17, thus preventing the wire 23 from getting tangled.
[0029] The connecting mechanism includes a connecting frame 22 threaded onto the reciprocating screw 9, with the end of the connecting frame 22 fixedly connected to the piston plate 20. The connecting frame 22 has a U-shaped design, and its vertical portion slides through the rotating chamber 21 and extends into the movable chamber 19. Therefore, the connecting frame 22 has its own limit and will not rotate with the reciprocating screw 9.
[0030] Furthermore, the end of the reciprocating screw 9 extends to the outside of the functional box 4, and the reciprocating screw 9 has threads only on the outer wall of the part inside the rotating chamber 21.
[0031] The rotating mechanism includes a drive gear 11 mounted on the output shaft of the drive motor 10, and a transmission gear 12 that meshes with the drive gear 11 on the reciprocating screw 9.
[0032] The transmission mechanism includes synchronous pulleys 13 mounted on the drive shaft 7, reciprocating screw 9, and stirring shaft 17. Corresponding synchronous pulleys 13 are connected by a synchronous belt 14. With the above components, the reciprocating screw 9 and stirring shaft 17 can rotate synchronously after the drive motor 10 is started.
[0033] The synchronous wheel 13 on the stirring shaft 17 is smaller than the synchronous wheel 13 on the transmission shaft 7, and the speed of the reciprocating screw 9 is less than the speed of the stirring shaft 17, so that water can be slowly absorbed for rapid stirring, heating and sterilization.
[0034] Both connecting pipes 15 are equipped with one-way valves. When the piston plate 20 moves up, the sterilization box 3 is under negative pressure. Water from the primary filter box 1 can be drawn into the sterilization box 3 through the connecting pipe 15. When the piston plate 20 moves down, the water that has been sterilized at high temperature in the sterilization box 3 can be sent into the water storage tank 8 through the connecting pipe 15 for storage.
[0035] Components not specifically described in this utility model are all standard parts and can be purchased from the market. The specific connection methods of each component adopt mature methods in the prior art, and will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0036] In use, external water enters the primary filter box 1 through the inlet pipe 2, where primary filtration is completed by the internal filtration components. The drive motor 10 starts, and its output shaft drives the drive gear 11 to rotate. The drive gear 11 meshes with the transmission gear 12, causing the reciprocating screw 9 to rotate. Since the connecting frame 22 is threaded onto the reciprocating screw 9 and has a self-limiting function, it does not rotate with the screw. When the reciprocating screw 9 rotates, the connecting frame 22 drives the piston plate 20 to reciprocate within the moving chamber 19. When the piston plate 20 moves upward, creating negative pressure in the sterilization chamber 3, the filtered water in the primary filter box 1 is drawn into the sterilization chamber 3 through the connecting pipe 15 (with the one-way valve open). Simultaneously, the drive motor 10 drives the reciprocating screw 9 to rotate via the rotation mechanism. The reciprocating screw 9, in turn, drives the transmission shaft 7 and the stirring shaft 17 to rotate synchronously via the transmission mechanism, namely the synchronous pulley 13 and the synchronous belt 14. The electric heating rod 18 on the stirring shaft 17 rotates to heat and sterilize the water in the sterilization chamber 3. Because the stirring shaft 17 rotates at a higher speed than the reciprocating screw 9, it can quickly stir the water, resulting in more uniform heating and accelerating the sterilization process. When the piston plate 20 descends, the pressure inside the sterilization chamber 3 increases, and the water sterilized at high temperature is sent to the water storage tank 8 through the connecting pipe 15 (with the one-way valve open). The drain pipe 16 at the bottom of the water storage tank 8 is used to drain cooled boiled water. Throughout the process, the male connector 25 and the female connector 24 cooperate through the T-shaped insert 26 and the annular groove 28. The spring 27 ensures a stable connection, and the female connector 24 does not rotate with the stirring shaft 17, preventing the wire 23 from winding and ensuring a stable power supply to the electric heating rod 18.
[0037] 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 high-temperature sterilization and temperature control device for a boiled water dispenser, comprising a primary filter box (1), a sterilization box (3), a functional box (4), and a water storage tank (8), characterized in that, The sterilization box (3) is connected to the primary filter box (1) and the water storage tank (8) through a connecting pipe (15). A stirring shaft (17) is rotatably installed inside the sterilization box (3). Multiple electric heating rods (18) are installed on the stirring shaft (17). The functional box (4) is connected to the sterilization box (3) through two functional pipes (5). The functional box (4) has an active chamber (19) and a rotating chamber (21). A piston plate (20) is installed in the active chamber (19). A reciprocating screw (9) is installed in the rotating chamber (21). The piston plate (20) is connected to the reciprocating screw through a connecting mechanism. (9) Connection: The functional box (4) is equipped with a drive motor (10), which is connected to the reciprocating screw (9) through a rotating mechanism. The sterilization box (3) is equipped with a transmission shaft (7) through a support frame (6), which is connected to the reciprocating screw (9) and the stirring shaft (17) through a transmission mechanism. The stirring shaft (17) is equipped with a male connector (25) through a female connector (24), and a T-shaped insert (26) is slidably inserted through the male connector (25) through an elastic mechanism. The female connector (24) is equipped with an annular groove (28).
2. The high-temperature sterilization and temperature control device for a boiled water dispenser according to claim 1, characterized in that, The connecting mechanism includes a connecting frame (22) threaded onto the reciprocating screw (9), and the end of the connecting frame (22) is fixedly connected to the piston plate (20).
3. The high-temperature sterilization and temperature control device for a boiled water dispenser according to claim 1, characterized in that, The rotating mechanism includes a drive gear (11) mounted on the output shaft of the drive motor (10), and a transmission gear (12) meshing with the drive gear (11) is provided on the reciprocating screw (9).
4. The high-temperature sterilization and temperature control device for a boiled water dispenser according to claim 3, characterized in that, The transmission mechanism includes synchronous pulleys (13) mounted on the transmission shaft (7), reciprocating screw (9) and stirring shaft (17), and the corresponding two synchronous pulleys (13) are connected by a synchronous belt (14).
5. The high-temperature sterilization and temperature control device for a boiled water dispenser according to claim 1, characterized in that, The elastic mechanism includes a spring (27) sleeved on the outside of the T-shaped plug (26), with the two ends of the spring (27) connected to the outer wall of the head of the T-shaped plug (26) and the outer wall of the male connector (25), respectively.
6. The high-temperature sterilization and temperature control device for a boiled water dispenser according to claim 1, characterized in that, The synchronous wheel (13) on the stirring shaft (17) is smaller than the synchronous wheel (13) on the drive shaft (7), and both connecting pipes (15) are equipped with one-way valves.