Drive device with coupling on a cold drink maker, smoothie maker and ice cream maker
By connecting the drive motor and the rotating shaft with a coupling, the gearbox is eliminated, and a DC motor is used, which solves the problems of large size and high cost of traditional cold drink preparation equipment, and realizes the miniaturization of equipment and efficient stirring control.
Patent Information
- Application Number
- CN202521475619.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-14
- Publication Date
- 2026-08-04
- Estimated Expiration
- 2035-07-14
AI Technical Summary
Traditional cold drink preparation equipment uses a stirring blade drive device that is connected to a motor via a gearbox, resulting in high cost and large size, which is not conducive to the miniaturization design of the equipment.
The drive motor and the rotating shaft are connected by a coupling, eliminating the need for a gearbox. The DC drive motor is directly connected to the rotating shaft, and the simple structure ensures stable rotation of the rotating shaft. It is compatible with rotating shafts and motors of different diameters.
It achieves equipment miniaturization, cost reduction, efficiency improvement, precise control, convenient speed adjustment, adaptability to different rotating shaft diameters, and is suitable for smoothie machines and ice cream machines.
Smart Images

Figure CN224596291U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical equipment, and in particular to a drive device with a coupling on a cold drink making machine, a smoothie machine, and an ice cream machine. Background Technology
[0002] Traditional cold drink preparation equipment, such as smoothie machines and ice cream machines, uses stirring blades to stir raw materials at low temperatures in the stirring chamber, causing them to solidify into cold drinks or smoothies during the stirring process. However, the existing stirring blade drive devices have motors connected to the rotating shaft through a gearbox, which results in high cost, large size, and low motor efficiency, which is not conducive to the trend of miniaturization of equipment design. Summary of the Invention
[0003] The purpose of this invention is to provide a drive device with a coupling for a cold drink making machine. By optimizing the drive motor and the rotating shaft, the overall size is small and the cost is low, which helps to improve efficiency.
[0004] To achieve the above objectives, the present invention adopts the following solution:
[0005] A drive device with a coupling on a cold drink making machine includes a refrigeration tank disposed in the stirring chamber of the cold drink machine body, a drive motor disposed in the cold drink machine body, a rotating shaft and a coupling. The rotating shaft is rotatably inserted into the refrigeration tank, and the front end of the rotating shaft is an output connection end extending from the front end of the refrigeration tank. The front end of the coupling is a first connection end and the rear end is a second connection end. The other end of the rotating shaft is an installation end connected to the first connection end of the coupling. The second connection end of the coupling is connected to the output shaft of the drive motor.
[0006] The drive device with coupling in the cold drink making machine described above is a DC drive motor.
[0007] As described above, the drive device with a coupling on the cold drink making machine has a first connecting end and a second connecting end of the coupling, both of which are connecting recesses. The outer periphery of the coupling is also provided with a pin hole that extends radially through to the connecting recess.
[0008] The drive device with a coupling in the cold drink making machine described above has a plurality of pin holes on its outer periphery.
[0009] The drive device with coupling on the cold drink making machine described above, wherein the drive motor is fixed to the cold drink machine body by a positioning mounting plate.
[0010] As described above, the drive device with coupling on the cold drink making machine has a notch on the positioning mounting plate through which the output shaft of the drive motor can pass. The positioning mounting plate has a positioning part on the outer periphery of the notch for positioning and mounting with the drive motor. The positioning mounting plate also has fixed side wings on both sides for positioning and mounting with the cold drink machine body.
[0011] As described above, the cold drink making machine has a drive device with a coupling. The positioning mounting plate is also provided with a second mounting part outside the positioning part. The second mounting part is at least close to the upper and lower sides of the positioning mounting plate.
[0012] As described above, the cold drink making machine has a drive device with a coupling, and the front end of the refrigeration barrel is also provided with a rotating connector. The output connection end of the rotating shaft passes through the rotating connector and extends to the front side of the refrigeration barrel.
[0013] This utility model also provides a smoothie maker, which is equipped with the drive device of the above-mentioned cold drink making machine.
[0014] This utility model also provides an ice cream machine, characterized in that the ice cream machine is a drive device of the above-mentioned cold drink making machine.
[0015] In summary, the advantages of this utility model over the prior art are:
[0016] 1. This utility model provides a drive device with a coupling for a cold drink making machine. It eliminates the need for a traditional gearbox and ensures stable rotation of the rotating shaft relative to the refrigeration tank through a simple structural design. The coupling allows the mounting end of the rotating shaft to be connected to the output shaft of the drive motor, resulting in a simpler structure, smaller size, higher efficiency, and cost savings. Furthermore, the coupling can be adapted to rotating shafts and motors with different shaft diameters, making the selection of motors wider and facilitating miniaturization design.
[0017] 2. This utility model provides a drive device with a coupling on a cold drink making machine. It uses a DC drive motor connected to the rotating shaft through the coupling, which makes the control more precise, the speed adjustment more convenient, the speed change range wider, and the forming state of the slush (ice cream) can be judged by the torque change. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1This is a schematic diagram of the drive device with coupling on the cold drink making machine of this utility model;
[0020] Figure 2 for Figure 1 A diagram of the rear side;
[0021] Figure 3 for Figure 1 A half-section view;
[0022] Figure 4 for Figure 1 Exploded view;
[0023] Figure 5 This is an exploded view of the rotating connector. Detailed Implementation
[0024] 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.
[0025] like Figures 1 to 5 As shown, this utility model provides a drive device with a coupling for a cold drink making machine, including a refrigeration tank 3 located in the stirring chamber of the cold drink machine body, a drive motor 2 located in the cold drink machine body 1, and a rotating shaft 4. The rotating shaft 4 is rotatably inserted into the refrigeration tank 3, and the front end of the rotating shaft 4 is an output connection end 41 extending from the front end of the refrigeration tank 3. The output connection end 41 is used to install a stirring component and drive the stirring component to rotate around the outer circumference of the refrigeration tank 3. During operation, the refrigeration tank 3 is used to install a condensation system, which lowers the temperature of the refrigeration tank 3 itself. The outer circumference of the refrigeration tank 3 is the stirring chamber. The material is cooled by contacting the outer circumference of the refrigeration tank 3, reaching the temperature of a cold drink. The rotating shaft 4 is connected to the stirring blades through the output connection end 41 of the refrigeration tank 3, driving the stirring blades to rotate, thereby preventing the material from accumulating and condensing on the refrigeration tank 3. Through a simple structural design, this design ensures that the rotating shaft can rotate stably relative to the refrigeration tank, thereby driving the stirring blades on its output connection end to rotate and complete the stirring operation. Furthermore, the coupling 7 in this design has a first connection end at its front end and a second connection end at its rear end. The other end of the rotating shaft 4 is a mounting end 42 connected to the first connection end of the coupling 7, and the second connection end of the coupling 7 is connected to the output shaft 21 of the drive motor 2. The coupling allows the mounting end of the rotating shaft to connect to the output shaft of the drive motor, resulting in a simpler structure, smaller size, higher efficiency, and cost savings. Moreover, the coupling can accommodate rotating shafts and motors of different diameters, broadening the range of motor options and facilitating miniaturized designs.
[0026] This solution connects the rotating shaft and the motor via the first and second connecting ends of coupling 7, respectively, thereby achieving mating of shafts with unequal diameters. Furthermore, coupling 7 itself is small in size and, as a small accessory, will not occupy excessive space during installation. Of course, the first and second connecting ends can be configured with different connecting parts, such as protruding mating parts. Preferably, in this solution, both the first and second connecting ends of coupling 7 are recessed connecting parts, and the outer periphery of coupling 7 is also provided with pin holes that penetrate radially to the connecting recesses. Its structure is simple, facilitating mating and installation with the shaft ends at both ends. In addition, to ensure more stable transmission and prevent loosening, coupling 7 has multiple pin holes on its outer periphery.
[0027] The drive motor 2 described in this solution is preferably a DC drive motor. DC motors have the advantage of high efficiency, with an efficiency of over 90% in converting electrical energy into mechanical energy. This is because the electromagnet coil of a DC motor only needs to be excited once to maintain magnetic flux, unlike AC motors which frequently reverse the magnetic flux, thus consuming less energy. Furthermore, DC motors offer higher control precision, achieving accurate speed control by adjusting current and voltage. In addition, DC motors can achieve more precise position control through feedback control systems. This makes DC motors widely used in industrial automation, robotics, and other fields. Moreover, compared to other types of motors, DC motors have lower noise levels. This is because the friction between the rotor and stator of a DC motor is relatively small, and the control system of a DC motor can reduce motor noise through PWM modulation.
[0028] Furthermore, DC motors are relatively simple to control; speed control can be achieved by adjusting current and voltage. In addition, DC motors can achieve more precise position control through a feedback control system. Therefore, this solution uses a DC drive motor directly connected to the rotating shaft, resulting in more precise control, more convenient speed adjustment, a wider speed range, and the ability to determine the smoothie's (ice cream's forming state) through torque changes.
[0029] In addition, since this solution eliminates the traditional gearbox structure, the drive motor can be directly connected to the beverage machine body 1 for easy fixed installation. Preferably, considering the miniaturization of the drive motor, this solution more suitablely adopts the drive motor 2 fixed to the beverage machine body 1 through the positioning mounting plate 8.
[0030] Specifically, the positioning mounting plate 8 has a notch 81 through which the output shaft 21 of the drive motor 2 can pass. A positioning part 82 for positioning and mounting the drive motor 2 is located around the notch 81 on the positioning mounting plate 8. Fixed side wings 83 are also provided on both sides of the positioning mounting plate 8 for positioning and mounting with the beverage dispenser body 1. The positioning mounting plate 8 serves as a connector, used for positioning and mounting the drive motor 2 and fixing it within the machine body. This allows for pre-assembly of related components on the positioning mounting plate 8 during production and assembly, followed by modular direct installation into the machine body, achieving efficient assembly.
[0031] To ensure greater stability of the positioning mounting plate 8 during operation of the drive motor 2, a second mounting portion 84 is provided on the positioning mounting plate 8 outside the positioning portion 82. This second mounting portion 84 is located at least near the upper and lower sides of the positioning mounting plate 8. This arrangement provides connection points near the outer contour of the positioning mounting plate 8, allowing it to be fixed inside the beverage dispenser body 1 using screws, achieving a stable connection and effectively reducing the vibration effects generated by the drive motor 2 during operation.
[0032] In this embodiment of the invention, to further improve the stable rotation of the rotating shaft, a rotating connector 5 is provided at the front end of the refrigeration tank 3. The output connection end 41 of the rotating shaft 4 passes through the rotating connector 5 and extends to the front side of the refrigeration tank 3. Its structure is simple and easy to assemble.
[0033] Specifically, the rotating connector 5 has the following structure: It includes a front cover 51 and an inner seat 52. The front end of the refrigeration tank 3 has an installation opening. The inner seat 52 is located inside the refrigeration tank 3. The front cover 51 covers the front side of the installation opening and is connected to the inner seat 52. Both the front cover 51 and the inner seat 52 have through holes for the rotating shaft 4 to pass through. Furthermore, the front cover 51 has a rearwardly extending positioning connection part 510, and the inner seat 52 has a groove for the positioning connection part 510 to be inserted and installed. Its structure is simple, easy to install, and ensures stable rotation of the rotating shaft.
[0034] In addition, the rotating connector 5 not only makes the rotating shaft more stable to install, but also ensures a sealing effect. A first sealing element 61 is provided between the front cover 51 and the rotating shaft 4, and a second sealing element 62 is provided between the front cover 51 and the refrigeration tank 3. This ensures that the gaps between the rotating shaft 4 and the front cover 51, and between the front cover 51 and the refrigeration tank 3, are filled by the first sealing element 61 and the second sealing element 62, so as to better ensure the dry environment inside the refrigeration tank 3 and prevent materials from remaining in the gaps or entering the interior and causing damage.
[0035] In this design, for ease of installation, the output connection end 41 of the rotating shaft 4 has a polygonal cross-section. This facilitates its installation with the stirring blades, enabling the stirring blades to rotate.
[0036] This utility model also provides a smoothie maker, which is equipped with the aforementioned drive device, and thus the smoothie maker also has the same beneficial effects.
[0037] This utility model also provides an ice cream machine with the aforementioned driving device, thus the ice cream machine also has the same beneficial effects.
[0038] This utility model provides a drive device with a coupling for a cold drink making machine. Through a simple structural design, it ensures that the rotating shaft can rotate stably relative to the refrigeration tank, thereby driving the stirring blades on its output connection end to rotate and complete the stirring drive work. Moreover, the mounting end of the rotating shaft in this solution is directly connected to the output shaft of the drive motor, eliminating the need for a traditional gearbox, thus making the structure simpler, smaller, more efficient, and cost-effective.
[0039] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0040] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.
Claims
1. A drive device with a coupling on a cold drink making machine, characterized in that, The device includes a refrigeration tank (3) located in the stirring chamber of the beverage machine body, a drive motor (2) located in the beverage machine body (1), a rotating shaft (4) and a coupling (7). The rotating shaft (4) is rotatably inserted into the refrigeration tank (3), and the front end of the rotating shaft (4) is an output connection end (41) extending from the front end of the refrigeration tank (3). The front end of the coupling (7) is a first connection end and the rear end is a second connection end. The other end of the rotating shaft (4) is an installation end (42) connected to the first connection end of the coupling (7). The second connection end of the coupling (7) is connected to the output shaft (21) of the drive motor (2).
2. The drive device with coupling on the cold drink making machine according to claim 1, characterized in that, The drive motor (2) is a DC drive motor.
3. The drive device with coupling on the cold drink making machine according to claim 2, characterized in that, The first and second connecting ends of the coupling (7) are both connecting recesses, and the outer periphery of the coupling (7) is also provided with a pin hole that extends radially through to the connecting recess.
4. The drive device with an on-board coupling for a cold beverage maker according to claim 3, characterized in that The coupling (7) has multiple pin holes on its outer periphery.
5. The drive device with coupling on the cold drink making machine according to claim 2, characterized in that, The drive motor (2) is fixed to the cold drink machine body (1) by the positioning mounting plate (8).
6. The drive device with coupling on the cold drink making machine according to claim 5, characterized in that, The positioning mounting plate (8) has a notch (81) through which the output shaft (21) of the drive motor (2) can pass. The positioning mounting plate (8) has a positioning part (82) for positioning and mounting with the drive motor (2) on the outer periphery of the notch (81). The positioning mounting plate (8) also has fixed side wings (83) on both sides, which are used for positioning and mounting with the cold drink machine body (1).
7. The drive device with an on-board coupling for a cold beverage maker according to claim 6, characterized in that The positioning mounting plate (8) is further provided with a second mounting part (84) located outside the positioning part (82), and the second mounting part (84) is at least close to the upper and lower sides of the positioning mounting plate (8).
8. The drive device with coupling on the cold drink making machine according to claim 5, characterized in that, The front end of the refrigeration barrel (3) is also provided with a rotating connector (5), and the output connection end (41) of the rotating shaft (4) passes through the rotating connector (5) and extends to the front side of the refrigeration barrel (3).
9. A smoothie maker, characterized in that, The smoothie machine is equipped with a drive device for the cold drink making machine as described in any one of claims 1-8.
10. An ice cream machine, characterized in that, The ice cream machine is equipped with a drive device for the cold drink making machine as described in any one of claims 1-8.