A front desk type ice cream machine

Abstract

The application discloses a front desk type ice cream machine, which comprises a machine body, a refrigeration container and a stirring assembly arranged in the refrigeration container. The stirring assembly comprises a rotating shaft driven to rotate and a stirring paddle fixed to the rotating shaft. The rotating shaft is rotatably connected to the bottom wall of the refrigeration container through a mounting device. The mounting device comprises a base, a sealing element and a locking element. The base is fixed to the bottom wall and has a shaft hole through which the rotating shaft passes. The sealing element is arranged to prevent ice cream in the refrigeration container from flowing out through the shaft hole. The locking element is fixed to the base to limit the position of the sealing element. An installation area for embedding the sealing element is formed between the base and the locking element. Part of the structure of the base and part of the structure of the locking element are respectively located on the two axial sides of the sealing element, so that the axial movement of the sealing element can be limited. The scheme provides the sealing property between the driving shaft and the refrigeration container relative to the prior art.

Description

Technical Field

[0001] This application relates to the field of front-desk ice cream machines, and in particular to a front-desk ice cream machine. Background Technology

[0002] With the upgrading of consumption, the types of ice cream have become more diverse and the taste is also richer. Now, many consumers prefer to buy ice cream made on the spot for reasons such as fresh taste and clear visibility of hygiene. The front-desk ice cream machine used for making ice cream on the spot is also called the front-desk ice cream machine. Consumers can watch the ice cream making process while they are waiting to buy it.

[0003] In related technologies, front-mounted ice cream machines are equipped with a container cylinder containing a stirring shaft, which may have several stirring blades. When ingredients are placed in the container, a drive unit rotates the stirring shaft to ensure even mixing. Combined with a condensing device outside the container, ice cream is quickly made. However, if the seal between the stirring shaft and the container is poor, liquid inside the container will leak out and flow into electrical components such as the motor, potentially damaging the front-mounted ice cream machine.

[0004] Therefore, it is necessary to propose a new technical solution to overcome the shortcomings of existing technologies. Utility Model Content

[0005] To address the aforementioned issues, this application provides a front-mounted ice cream machine that improves the sealing between the stirring shaft and the refrigeration container.

[0006] This application provides a front-mounted ice cream machine, including a machine body, a refrigeration container, and a stirring assembly disposed in the refrigeration container. The stirring assembly includes a rotating shaft driven to rotate and a stirring paddle fixed to the rotating shaft. The rotating shaft is rotatably connected to the bottom wall of the refrigeration container by means of a mounting device, the mounting device comprising: A base, which is fixed to the bottom wall and has a shaft hole through which the rotating shaft passes; A seal configured to prevent ice cream from flowing out of the refrigeration container through the shaft hole; and A locking element, which is fixed to the base, to limit the position of the seal; The base and the locking member form an installation area for fitting the seal. Parts of the base and the locking member are located on opposite axial sides of the seal to restrict axial movement of the seal.

[0007] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0008] Optionally, the seal is an oil seal.

[0009] Optionally, the outer wall of the seal and the inner wall of the mounting area are in a transition or interference fit.

[0010] Optionally, along the axial direction of the rotation axis, the length of the mounting area is greater than the length of the seal.

[0011] Optionally, the locking element has a mating groove for embedding the seal.

[0012] Optionally, the locking element further includes a mounting groove, in which the portion of the base located inside the refrigeration container is located and threadedly connected to the locking element.

[0013] Optionally, the mounting groove is located below the mating groove, and the mounting groove is connected to the mating groove.

[0014] Optionally, a limiting step that mates with the base is formed between the mounting groove and the mating groove.

[0015] Optionally, the rotating shaft is configured to drive the stirring paddle to rotate within the refrigeration container to form a stirring range for stirring ice cream in the height direction; The stirring paddle is fixedly connected to the upper end of the rotating shaft by a coupling device. The top surface of the coupling device and the top surface of the rotating shaft are both positioned within the stirring range so that the user can scoop ice cream from the refrigeration container.

[0016] Optionally, the agitator is fixedly connected to the upper end of the rotating shaft by a coupling device; The top surface of the coupling device and the top surface of the rotating shaft are both positioned within two-thirds of the height of the mixing container, and the distance between the top surface of the coupling device and the top surface of the rotating shaft and the bottom wall of the mixing container is less than 15cm, so that the user can easily scoop ice cream from the mixing container.

[0017] This application discloses a front-mounted ice cream machine, in which an installation area is formed between the base and the locking component, and a sealing component can be easily embedded therein. After the locking component is fixed to the base, the position of the sealing component can be quickly defined without complicated adjustments and operations, which greatly improves the installation efficiency of the equipment and reduces the installation cost.

[0018] The seal is positioned within the mounting area, its axial sides constrained by the base and locking components, preventing axial movement during shaft rotation. The seal reliably prevents ice cream from leaking out of the refrigeration container through the shaft hole, ensuring hygiene during ice cream making and proper equipment operation, and avoiding material waste and equipment contamination caused by leaks. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a front-desk ice cream machine is provided in this application. Figure 2 for Figure 1 A partial structural diagram of a front-mounted ice cream machine; Figure 3 for Figure 2 A structural diagram from another perspective; Figure 4 for Figure 3 A sectional view of the middle section of the structure; Figure 5 for Figure 4 A magnified structural diagram of part A in the diagram; Figure 6 for Figure 4 A schematic diagram of the drive shaft and mounting device; Figure 7 for Figure 4 A schematic diagram of the stirring paddle and coupling device.

[0020] The annotations in the figure are explained as follows: 100. Front-desk ice cream machine; 10. Organism; 20. Refrigeration container; 21. Receiving cavity; 22. Side wall; 23. Bottom wall; 30. Mixing assembly; 31. Rotating shaft; 32. Mixing paddle; 33. Power source; 40. Mounting device; 41. Base; 411. First seat body; 412. Second seat body; 42. Seal; 43. Locking element; 431. Mating groove; 432. Mounting groove; 433. Limiting step; 44. Mounting area; 50. Coupling device; 51. Connecting sleeve; 511. Anti-rotation hole. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that when a component is said to be "connected" to another component, it can be directly connected to the other component or it can be connected to a component in between. When a component is said to be "set on" another component, it can be directly set on the other component or it may be set to a component in between.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] like Figures 1 to 7 As shown, this application provides a front-mounted ice cream machine 100, including a body 10, a refrigeration container 20, and a stirring assembly 30 disposed within the refrigeration container 20. The stirring assembly 30 includes a driven rotating shaft 31 and a stirring paddle 32 fixedly connected to the rotating shaft 31. The rotating shaft 31 is rotatably connected to the bottom wall 23 of the refrigeration container 20 via a mounting device 40. The mounting device 40 includes a base 41, a seal 42, and a locking member 43. The base 41 is fixedly connected to the bottom wall 23 and has a shaft hole through which the rotating shaft 31 passes. The seal 42 is configured to prevent ice cream in the refrigeration container 20 from flowing out through the shaft hole. The locking member 43 is fixedly connected to the base 41 to limit the position of the seal 42. A mounting area 44 for embedding the seal 42 is formed between the base 41 and the locking member 43. Parts of the structure of the base 41 and parts of the structure of the locking member 43 are located on opposite axial sides of the seal 42 to limit the axial movement of the seal 42.

[0025] An installation area 44 is formed between the base 41 and the locking member 43, in which the sealing member 42 can be easily embedded. After the locking member 43 is fixed to the base 41, the position of the sealing member 42 can be quickly limited without complicated adjustments and operations, which greatly improves the installation efficiency of the equipment and reduces the installation cost.

[0026] The seal 42 is disposed within the mounting area 44, and its axial sides are respectively restricted by the base 41 and the locking element 43, preventing axial movement of the seal 42 during the rotation of the rotating shaft 31. The seal 42 reliably prevents ice cream in the refrigeration container 20 from flowing out through the shaft hole, ensuring hygiene in the ice cream making process and normal operation of the equipment, and avoiding raw material waste and equipment contamination problems caused by leakage.

[0027] During the operation of the front-mounted ice cream machine 100, the stirring assembly 30 rotates continuously, which may exert a certain force and vibration on the seal 42. The mounting device 40 restricts the axial movement of the seal 42, enabling it to maintain a stable sealing state in dynamic environments. Even during long-term, high-frequency use, it can effectively prevent ice cream leakage, ensuring the sealing performance and stability of the front-mounted ice cream machine 100.

[0028] The base 41 is fixed to the bottom wall 23 of the refrigeration container 20, providing a solid support for the rotating shaft 31. The rotating shaft 31 passes through the shaft hole of the base 41 and is rotatably connected by the mounting device 40. This structure ensures the stable operation of the stirring assembly 30 within the refrigeration container 20 and reduces vibration and noise problems caused by insecure installation.

[0029] In this embodiment, as Figure 1 As shown, the structure of the machine body 10 is not strictly limited, as long as the machine body 10 can support the mixing container and other structures; for example, the structure of the machine body 10 can be a frame structure. Casters are installed at the bottom of the machine body 10, which allows the front-mounted ice cream machine 100 to be moved flexibly.

[0030] In this embodiment, as Figures 1 to 4 As shown, the mixing container has an open cavity 21; the mixing paddle 32 is located inside the cavity 21 and mixes the ice cream inside the cavity 21. The mixing container includes a bottom wall 23 and a side wall 22; the bottom wall 23 and the side wall 22 form the cavity 21; wherein, the bottom wall 23 is generally plate-shaped; the side wall 22 has a cylindrical structure, with one end of the side wall 22 open along its own axis to form an opening, and the other end connected to the bottom wall 23.

[0031] In this embodiment, as Figures 2 to 7 As shown, part of the drive shaft is located inside the mixing container and connected to the mixing paddle 32, while the other part is located outside the mixing container and connected to the power source 33. The power source 33 can drive the drive shaft to rotate, thereby driving the mixing paddle 32 to stir the ice cream inside the refrigeration container 20. The power source 33 is a motor, located outside the mixing container. The motor can be connected to the drive shaft via a speed reducer or similar means, enabling the motor to drive the drive shaft to rotate, thus driving the mixing paddle 32.

[0032] In this embodiment, as Figures 2 to 7 As shown, the stirring paddle 32 is fixedly connected to the upper end of the rotating shaft 31 by a coupling device 50, so that the stirring paddle 32 is fixedly connected to the upper end of the rotating shaft 31; the rotating shaft 31 can drive the stirring paddle 32 to rotate through the coupling device 50, so that the stirring paddle 32 can stir the ice cream in the refrigeration container 20.

[0033] In this embodiment, as Figures 2 to 7 As shown, the coupling device 50 includes a connecting sleeve 51; an agitator 32 is fixed to the connecting sleeve 51; the agitator 32 is fixed to the outside of the connecting sleeve 51 by welding or screws. The connecting sleeve 51 is generally tubular; the connecting sleeve 51 is sleeved on the outside of the rotating shaft 31 to facilitate the connection between the connecting sleeve 51 and the rotating shaft 31.

[0034] In this embodiment, as Figures 2 to 7 As shown, the connecting sleeve 51 has an anti-rotation hole 511, within which the rotating shaft 31 can be located and circumferentially fixed. When the connecting sleeve 51 is fitted onto the outside of the rotating shaft 31, the rotating shaft 31 extends into the anti-rotation hole 511, facilitating the connection between the connecting sleeve 51 and the rotating shaft 31. The anti-rotation hole 511 is non-circular; the cross-section of the portion of the rotating shaft 31 that mates with the anti-rotation hole 511 is approximately the same shape as the anti-rotation hole 511. For example, the anti-rotation hole 511 is square; the cross-section of the portion of the rotating shaft 31 that mates with the anti-rotation hole 511 is square.

[0035] In this embodiment, as Figures 2 to 7 As shown, the rotating shaft 31 is configured to drive the stirring paddle 32 to rotate within the refrigeration container 20 to form a stirring range for stirring ice cream in the vertical direction; the top surface of the coupling device 50 and the top surface of the rotating shaft 31 are both disposed within the stirring range so that the user can easily scoop ice cream from the refrigeration container 20.

[0036] The top surfaces of the coupling device 50 and the rotating shaft 31 are both positioned within the stirring range to reduce the space occupied by the rotating shaft 31 within the refrigeration container 20 and to avoid interference when scooping ice cream with the serving spoon. The stirring range is determined by the height of the ice cream within the refrigeration container 20; if the ice cream is too high, the stirring paddle 32 may overflow while stirring; if the ice cream is too low, the stirring paddle 32 will not be able to stir it. For example, the top of the stirring range is flush with the top of the stirring paddle 32. The maximum height of the top surfaces of the coupling device 50 and the rotating shaft 31 is H1, and the height of the refrigeration container 20 is H2, satisfying H1:H2 = (0.2-0.5):1. Preferably, H1:H2 = 0.3:1.

[0037] In this embodiment, as Figures 2 to 7 As shown, the top surface of the coupling device 50 and the top surface of the rotating shaft 31 are both positioned within two-thirds of the height of the mixing container, and the distance between the top surface of the coupling device 50 and the top surface of the rotating shaft 31 and the bottom wall 23 of the mixing container is less than 15cm, so that the user can easily scoop ice cream from the mixing container.

[0038] The top surfaces of both the coupling device 50 and the rotating shaft 31 are positioned within two-thirds of the height of the mixing container. This minimizes the space occupied by the coupling device 50 within the mixing container and prevents interference with the scooping of ice cream. Furthermore, the coupling device 50 is not exposed outside the ice cream when it is displayed, thus avoiding any impact on its appearance.

[0039] In this embodiment, as Figures 2 to 7 As shown, the distance between the top surface of the coupling device 50 and the top surface of the rotating shaft 31 and the bottom wall 23 of the mixing container is less than 12 cm. More preferably, the distance between the top surface of the coupling device 50 and the top surface of the rotating shaft 31 and the bottom wall 23 of the mixing container is less than 10 cm. More preferably, the distance between the top surface of the coupling device 50 and the top surface of the rotating shaft 31 and the bottom wall 23 of the mixing container is less than 8 cm. More preferably, the distance between the top surface of the coupling device 50 and the top surface of the rotating shaft 31 and the bottom wall 23 of the mixing container is less than 6 cm.

[0040] In this embodiment, as Figures 2 to 7 As shown, the bottom wall 23 has a mounting hole, and the base 41 passes through the mounting hole and is fixedly connected to the stirring container. The base 41 is generally cylindrical, so that a shaft hole for the drive shaft to pass through is formed inside the base 41. The drive shaft is fitted with the wall of the shaft hole with a gap.

[0041] In this embodiment, as Figures 2 to 7 As shown, the base 41 includes a first base body 411 and a second base body 412. A limiting portion is provided on the outer wall 22 of the first base body 411. The portion of the first base body 411 located inside the refrigeration container 20 abuts against the inner wall of the refrigeration container 20 through the limiting portion. The portion located outside the refrigeration container 20 is fixedly connected to the second base body 412 by means of threads, adhesives, welding, or bolts, thereby fixing the base 41 to the refrigeration container 20. A sealing ring is provided between the limiting portion and the refrigeration container 20 to enhance the seal between the base 41 and the refrigeration container 20.

[0042] In this embodiment, as Figures 2 to 7 As shown, the locking member 43 is generally cylindrical, forming a through hole in the base 41 for the drive shaft to pass through. The drive shaft is fitted with the wall of the shaft hole with a clearance. The locking member 43 also includes a mounting groove 432, the portion of the base 41 located within the refrigeration container 20 being situated within the mounting groove 432 and threadedly connected to the locking member 43, facilitating connection between the locking member 43 and the base 41. Specifically, the portion of the first seat 411 located within the refrigeration container 20 has external threads; the inner wall 22 of the mounting groove 432 has internal threads that mate with the external threads.

[0043] In this embodiment, as Figures 2 to 7 As shown, the locking member 43 has a mating groove 431 for embedding the sealing member 42; the mounting groove 432 is located below the mating groove 431 and is connected to the mating groove 431. When the locking member 43 is assembled on the first base 411, the locking member 43 and the wall of the mating groove 431 form a mounting area 44.

[0044] In this embodiment, as Figures 2 to 7 As shown, a limiting step 433 is formed between the mounting groove 432 and the mating groove 431 to mate with the base 41. When the locking member 43 is tightened along the external thread of the first seat 411, the limiting step 433 can lock the position of the member 43; in addition, the limiting step 433 can also effectively prevent the locking member 43 from squeezing the seal 42 due to over-tightening during assembly, ensuring that the seal 42 is always in a proper state within the mounting area 44. The inner diameter of the mounting groove 432 is smaller than the inner diameter of the mating groove 431, so that the limiting step 433 can be formed between the mounting groove 432 and the mating groove 431.

[0045] In this embodiment, as Figures 2 to 7 As shown, the outer wall 22 of the seal 42 and the inner wall of the mounting area 44 are in a transition or interference fit, so that the seal 42 can be firmly held on the locking member 43 and will not easily fall off. The outer wall 22 of the seal 42 and the inner wall of the locking member 43 are in a transition or interference fit; the seal 42 can be pre-assembled to the locking member 43, and then the locking member 43 is assembled together with the seal 42; this not only simplifies the assembly process and improves assembly efficiency, but also prevents the seal 42 from falling off.

[0046] In this embodiment, as Figures 2 to 7 As shown, the seal 42 is an oil seal. Along the axial direction of the rotating shaft 31, the length of the mounting area 44 is greater than the length of the seal 42, ensuring that the seal 42 can be accurately placed in the predetermined position during installation, further improving the accuracy and stability of the installation. On the other hand, when the rotating shaft 31 generates axial force or vibration during rotation, because the length of the mounting area 44 is greater than the length of the seal 42, the seal 42 has a certain amount of room to move within the mounting area 44, which can better buffer and adapt to these external forces, avoiding damage to the seal 42 due to stress concentration. This effectively extends the service life of the seal 42, further ensuring the sealing performance and stable operation of the front-mounted ice cream machine 100.

[0047] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.

[0048] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are quite specific and detailed. However, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A front-mounted ice cream machine, comprising a body, a refrigeration container, and a stirring assembly disposed within the refrigeration container, the stirring assembly comprising a driven rotating shaft and a stirring paddle fixed to the rotating shaft; characterized in that: The rotating shaft is rotatably connected to the bottom wall of the refrigeration container by means of a mounting device, the mounting device comprising: A base, which is fixed to the bottom wall and has a shaft hole through which the rotating shaft passes; A seal configured to prevent ice cream from flowing out of the refrigeration container through the shaft hole; and A locking element, which is fixed to the base, to limit the position of the seal; The base and the locking member form an installation area for fitting the seal. Parts of the base and the locking member are located on opposite axial sides of the seal to restrict axial movement of the seal.

2. The front-desk ice cream machine according to claim 1, characterized in that, The sealing element is an oil seal.

3. A front-desk ice cream machine according to claim 1 or 2, characterized in that, The outer wall of the seal and the inner wall of the mounting area are in a transition or interference fit.

4. A front-desk ice cream machine according to claim 1 or 2, characterized in that, Along the axial direction of the rotation axis, the length of the mounting area is greater than the length of the seal.

5. A front-desk ice cream machine according to claim 1 or 2, characterized in that, The locking element has a mating groove for embedding the seal.

6. A front-desk ice cream machine according to claim 5, characterized in that, The locking element also includes a mounting groove, in which the portion of the base located inside the refrigeration container is located and threadedly connected to the locking element.

7. A front-desk ice cream machine according to claim 6, characterized in that, The mounting groove is located below the mating groove, and the mounting groove is connected to the mating groove.

8. A front-desk ice cream machine according to claim 7, characterized in that, A limiting step is formed between the mounting groove and the mating groove to mate with the base.

9. A front-desk ice cream machine according to claim 1, characterized in that, The rotating shaft is configured to drive the stirring paddle to rotate within the refrigeration container to form a stirring range for stirring ice cream in the vertical direction. The stirring paddle is fixedly connected to the upper end of the rotating shaft by a coupling device. The top surface of the coupling device and the top surface of the rotating shaft are both positioned within the stirring range so that the user can scoop ice cream from the refrigeration container.

10. A front-desk ice cream machine according to claim 1, characterized in that, The stirring paddle is fixedly connected to the upper end of the rotating shaft by a coupling device; The top surface of the coupling device and the top surface of the rotating shaft are both positioned within two-thirds of the height of the mixing container, and the distance between the top surface of the coupling device and the top surface of the rotating shaft and the bottom wall of the mixing container is less than 15cm, so that the user can easily scoop ice cream from the mixing container.

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