Bubbling device convenient to clean and maintain

Abstract

The utility model relates to a bubbling device convenient to clean and maintain, which comprises a pipe body, a hinge section and a first connecting pipe detachably connected with the hinge section, a ball head is arranged at the tail end, far away from the first connecting pipe, of the hinge section, and the outer surface of the ball head is a spherical surface; the sleeve is arranged on the ball head in a sleeving manner; the pressing block is connected with one end, far away from the pipe body, of the sleeve; the pressing block extends into the sleeve; an air hole is formed in the pressing block; one end of the air hole is connected with a steam source, and the other end of the air hole extends into the sleeve; wherein the sleeve is close to the tail end of the tube body, and the inner wall of the sleeve extends to form a neck part; and the ball head is arranged between the pressing block and the neck part. The sleeve and the pipe body are rotationally connected through the ball head structure, and meanwhile the ball head is clamped and fixed in the sleeve through the neck part and the pressing block. Meanwhile, the hinged section is detachably connected with the first connecting pipe, so that the cleaning and maintenance steps of the steam milk bar are simplified.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, and in particular to a foaming device that is easy to clean and maintain. Background Technology

[0002] Coffee machines use a steam wand to spray high-pressure steam into milk, creating milk foam to make different types of coffee.

[0003] The steam box, used to generate steam, is typically installed inside the coffee machine, while the steam wand is fixed outside the machine and attached to the steam outlet of the steam box via a connecting structure. Generally, to facilitate easy removal and cleaning of the steam wand, the connecting structure is relatively complex, with multiple mating surfaces. For example, some technical solutions incorporate multiple locking blocks and limiting blocks at the steam outlet of the steam box, and a matching structure at the connection point of the steam wand to allow for a snap-fit ​​connection. During installation, the steam wand needs to be inserted at a specific angle relative to the steam outlet and rotated to lock in place. Disassembly involves removing the entire steam wand from the coffee machine.

[0004] When in use, the connection structure with many uneven surfaces makes it easy for splashed milk to accumulate in the gaps, affecting the cleanliness of the steam box. Moreover, the installation process requires alignment and can only be disassembled as a whole, making it relatively inconvenient to use.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a foaming device that is easy to clean and maintain, so as to simplify the cleaning and maintenance steps of steam milk sticks.

[0007] The technical solution of this utility model is as follows:

[0008] The easy-to-clean and maintain foaming device includes:

[0009] The tube body includes a hinged section and a first connecting tube detachably connected to the hinged section; a ball head is provided at the end of the hinged section away from the first connecting tube, and the outer surface of the ball head is spherical;

[0010] A sleeve is fitted onto the ball head;

[0011] A pressure block is connected to the end of the sleeve away from the pipe body; the pressure block extends into the sleeve; an air hole is provided on the pressure block; one end of the air hole is connected to a steam source, and the other end of the air hole extends into the sleeve;

[0012] The sleeve is located near the end of the tube body, and the inner wall of the sleeve extends to form a neck; the ball head is disposed between the pressure block and the neck.

[0013] A further technical solution is that an elastic element is provided inside the sleeve between the pressure block and the ball head; a fixing groove is opened at one end of the pressure block near the ball head; and the elastic element extends into the fixing groove.

[0014] A further technical solution is that a support block is provided inside the sleeve between the pressure block and the ball head; the surface of the support block near the ball head is a concave arc surface.

[0015] A further technical solution is that a limiting ring is also provided inside the sleeve; the limiting ring is sleeved on the hinge section; the limiting ring is located between the ball head and the neck.

[0016] A further technical solution is that, around the axis of the hinge segment, a reduced-diameter section is also provided on the hinge segment; the reduced-diameter section is connected to the ball head.

[0017] A further technical solution is that the hinged section is threadedly connected to the first connecting pipe.

[0018] A further technical solution is that the diameter of the first connecting pipe near the end of the hinge section is reduced to form a contraction section; a step is formed between the contraction section and the first connecting pipe; a thread is provided on the contraction section; and a washer is also fitted on the contraction section.

[0019] A further technical solution is that the pipe body further includes a second connecting pipe; internal threads are respectively provided on the inner walls of both ends of the second connecting pipe; the second connecting pipe is threadedly connected to both the hinge segment and the first connecting pipe; the first connecting pipe is connected to the hinge segment through the second connecting pipe.

[0020] A further technical solution is that the pipe body also includes a third connecting pipe; an internal thread is provided on the inner wall of one end of the third connecting pipe to thread-connect the hinge section; an external thread is provided on the other end of the third connecting pipe to thread-connect the second connecting pipe; and a thickened portion is provided radially extending on the third connecting pipe.

[0021] A further technical solution is that the inner surface of the sleeve is provided with an internal thread; the pressure block is provided with an external thread to cooperate with the internal thread.

[0022] The beneficial technical effects of this utility model are as follows:

[0023] (1) The foaming device of this utility model, which is easy to clean and maintain, has a ball head on the tube body and a sleeve fitted on the ball head. The surface of the ball head is an arc-shaped spherical surface, which facilitates the rotation of the ball head in the sleeve. In addition, a neck and a pressure block are provided on the sleeve. The neck and the pressure block work together to restrict the ball head from rotating in the sleeve and falling off, realizing large-angle adjustment and 360° rotation between the tube body and the sleeve, ensuring the flexibility of the tube body. The inner diameter of the neck is close to the outer diameter of the ball head, which ensures the frictional force when the ball head extends into the sleeve along the neck, so that the tube body will not fall out of the sleeve when rotating around the sleeve. The inner diameter of the neck is close to the outer diameter of the ball head, which also makes it easy for the ball head to be inserted into the sleeve under the action of external force, so as to quickly disassemble and assemble the tube body for cleaning and maintenance. In addition, the hinge section is detachably connected to the first connecting tube. The ball head is set on the hinge section. The first connecting tube rotates and swings around the sleeve and extends into the milk. The first connecting tube extending into the milk needs to be cleaned frequently. When cleaning the first connecting pipe, it is not necessary to remove the entire pipe body from the sleeve; only the first connecting pipe needs to be removed, further simplifying the cleaning and maintenance steps of the pipe body.

[0024] (2) Furthermore, an elastic element is provided inside the sleeve, and the pressure block flexibly fixes the position of the ball head inside the sleeve through the elastic element. When the ball head rotates inside the sleeve, the elastic element can buffer the instantaneous impact force of the ball head in real time, reducing the wear of the ball head.

[0025] (3) Furthermore, a support block is provided inside the sleeve. The support block is provided with an arc-shaped contact ball head, which fits the ball head better and ensures the stability of the ball head fixed inside the sleeve. Attached Figure Description

[0026] Figure 1 A three-dimensional structural schematic diagram of a foaming device that is easy to clean and maintain according to an embodiment of the present disclosure is shown.

[0027] Figure 2 A vertical cross-sectional schematic diagram of a foaming device that is easy to clean and maintain according to an embodiment of the present disclosure is shown.

[0028] Figure 3 A partial cross-sectional view of the foaming device, which is easy to clean and maintain according to an embodiment of the present disclosure, is shown at the sleeve position.

[0029] Marked in the attached diagram:

[0030] 1. Pressing block; 11. Fixing groove; 12. Limiting extension; 13. Air hole; 2. Support block; 21. Arc surface; 3. Sleeve; 31. Elastic element; 32. Neck; 33. Limiting ring; 4. Pipe body; 41. First connecting pipe; 411. Spray hole; 412. Contraction section; 413. Step; 42. Second connecting pipe; 43. Third connecting pipe; 431. Thickened part; 432. Wing plate; 44. Hinge section; 441. Ball head; 442. Reducing diameter section; 45. Steam hole; 5. Washer; 6. Outer shell; 61. Connecting seat; 62. Screw hole. Detailed Implementation

[0031] To make the objectives, features, and advantages of this utility model more apparent and understandable, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0032] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are 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.

[0033] Figure 1 A three-dimensional structural schematic diagram of a foaming device that is easy to clean and maintain according to an embodiment of the present disclosure is shown. Figure 2 A vertical cross-sectional view of a foaming device according to an embodiment of this disclosure is shown. Please refer to... Figure 1 and Figure 2The easy-to-clean and maintain foaming device includes a tube body 4, which includes a hinged section 44 and a first connecting pipe 41 detachably connected to the hinged section 44. A ball head 441 is provided at the end of the hinged section 44 away from the first connecting pipe 41, and the outer surface of the ball head 441 is spherical. A sleeve 3 is fitted onto the ball head 441. The surface of the ball head 441 is an arc-shaped spherical surface, facilitating rotation of the ball head 441 within the sleeve 3. A pressure block 1 connects to the end of the sleeve 3 away from the tube body 4. The pressure block 1 extends into the sleeve 3. An air hole 13 is provided on the pressure block 1. One end of the air hole 13 is connected to a steam source, and the other end extends into the sleeve 3. A steam hole 45 is provided along the length of the tube body 4. One end of the steam hole 45 opens onto the ball head 441, and the other end of the steam hole 45 opens onto the first connecting pipe 41. At least one nozzle 411 can be opened on the first connecting pipe 41, and the nozzle 411 is connected to the steam hole 45 to spray steam. The vent 13 is connected to the steam hole 45 through the sleeve 3. The steam generated by the steam source is sprayed out from the first connecting pipe 41 along the vent 13, the sleeve 3 and the steam hole 45. The sleeve 3 is close to the end of the pipe body 4, and the inner wall of the sleeve 3 extends to form a neck 32. The ball head 441 is disposed between the pressure block 1 and the neck 32. The neck 32 and the pressure block 1 cooperate to restrict the rotation of the ball head 441 in the sleeve 3 and prevent it from falling out, so as to realize large-angle adjustment and 360° rotation between the pipe body 4 and the sleeve 3, and ensure the flexibility of the pipe body 4. The inner diameter of the neck 32 is slightly smaller than the outer diameter of the ball head 441, so as to ensure the friction force when the ball head 441 extends into the sleeve 3 along the neck 32, so that the pipe body 4 will not fall out of the sleeve 3 when rotating around the sleeve 3. The inner diameter of the neck 32 is slightly smaller than the outer diameter of the ball head 441, which allows the ball head 441 to be easily inserted into the sleeve 3 under external force, enabling quick disassembly and assembly of the tube body 4 for cleaning and maintenance. Additionally, the hinge section 44 is detachably connected to the first connecting tube 41. The ball head 441 is mounted on the hinge section 44, and the first connecting tube 41 rotates and extends into the milk around the sleeve 3. The first connecting tube 41 needs frequent cleaning when inserted into the milk. When cleaning the first connecting tube 41, it is not necessary to remove the entire tube body 4 from the sleeve 3; only the first connecting tube 41 needs to be removed, further simplifying the cleaning and maintenance steps of the tube body 4.

[0034] Around the axis of the sleeve 3, the outer surfaces of both the sleeve 3 and the pressure block 1 are polygonal surfaces to facilitate gripping and rotating the sleeve 3 and the pressure block 1.

[0035] Figure 3 A partial cross-sectional view of the sleeve position is shown of a foaming device according to an embodiment of the present disclosure that facilitates cleaning and maintenance. Please refer to... Figure 2 and Figure 3 In some embodiments, a housing 6 may be fitted onto the sleeve 3, with the housing 6 being either interference-fitted to the sleeve 3 or threadedly connected. A connecting seat 61 extends from the housing 6. A threaded hole 62 is provided on the connecting seat 61 for threaded connection to the coffee machine body or the steam generator.

[0036] In other embodiments, the outer surface of the sleeve 3 may also be provided with a connecting seat 61, and the connecting seat 61 is provided with a screw hole 62 for threaded connection to the coffee machine body or the steam generator.

[0037] Please refer to Figure 1 and Figure 2 An elastic element 31 is installed inside the sleeve 3 between the pressure block 1 and the ball head 441. The pressure block 1 flexibly fixes the position of the ball head 441 within the sleeve 3 through the elastic element 31. When the ball head 441 rotates within the sleeve 3, the elastic element 31 can buffer the instantaneous impact force of the ball head 441 in real time, reducing the wear of the ball head 441. A fixing groove 11 is opened at one end of the pressure block 1 near the ball head 441. The elastic element 31 extends into the fixing groove 11. The fixing groove 11 fixes the position of the elastic element 31, preventing the elastic element 31 from flipping and changing its extension direction, thus no longer supporting the ball head 441 and the pressure block 1. The elastic element 31 can be a spring or an elastic block with a through hole. The elastic block has a through hole to prevent the elastic block from blocking the inner hole of the sleeve 3 and hindering the flow of steam along the sleeve 3.

[0038] Preferably, a support block 2 is provided inside the sleeve 3 between the pressure block 1 and the ball head 441. The surface of the support block 2 near the ball head 441 is a concave arc surface 21. The support block 2 contacts the ball head 441 through the arc surface 21, and the arc surface 21 fits the ball head 441 more closely, ensuring the stability of the ball head 441 fixed inside the sleeve 3.

[0039] More preferably, a limiting ring 33 is also provided inside the sleeve 3. The limiting ring 33 is sleeved on the hinge section 44. The limiting ring 33 is located between the ball head 441 and the neck 32. The limiting ring 33 is made of elastic material. When the ball head 441 is inserted into or removed from the sleeve 3, the limiting ring 33 elastically deforms to expand its size, allowing the ball head 441 to pass through. The setting of the limiting ring 33 further reduces the risk of the ball head 441 accidentally falling out of the sleeve 3. At the same time, the elastic deformation of the limiting ring 33 makes flexible contact between the limiting ring 33 and the ball head 441, reducing wear during the assembly process of the ball head 441.

[0040] Please refer to Figure 1 and Figure 2 The hinged section 44 is threadedly connected to the first connecting pipe 41. This threaded connection provides a stable connection and facilitates disassembly and assembly, allowing for easy removal of the first connecting pipe 41 for maintenance and cleaning. In some embodiments, the diameter of the first connecting pipe 41 near the hinged section 44 decreases to form a contraction section 412. A step 413 is formed between the contraction section 412 and the first connecting pipe 41. The threads on the first connecting pipe 41 are located on the contraction section 412. The step 413 allows for quick positioning during connection, simplifying the assembly of the pipe body 4. A washer 5, made of elastic material, is also fitted onto the contraction section 412 to seal any gaps at the threaded connection location.

[0041] Preferably, the tube body 4 further includes a second connecting tube 42 and a third connecting tube 43. An internal thread is provided on the inner wall of one end of the third connecting tube 43 to threadedly connect to the hinge section 44. Internal threads are provided on the inner walls of both ends of the second connecting tube 42. One end of the second connecting tube 42 is threadedly connected to the hinge section 44 via the third connecting tube 43, and the other end of the second connecting tube 42 is threadedly connected to the first connecting tube 41. The portion of the tube body 4 that does not directly contact the milk is designated as the second connecting tube 42, and the portion that directly contacts the milk is designated as the first connecting tube 41. The portion of the tube body 4 that contacts the milk requires frequent cleaning; in this case, the first connecting tube 41 can be removed separately for cleaning, without needing to remove the entire tube body 4, making it convenient for the user to clean the tube body 4. Gaskets 5 can be provided in the gaps between the hinge section 44 and the third connecting tube 43, the gap between the third connecting tube 43 and the second connecting tube 42, and the gap between the second connecting tube 42 and the first connecting tube 41 to ensure the sealing performance of the tube body 4.

[0042] More preferably, a thickened portion 431 is provided radially extending on the third connecting pipe 43. The pipe body 4 with the thickened portion 431 is separately designated as the third connecting pipe 43. The thickened portion 431 has a greater thickness and better heat insulation performance. When adjusting the angle of the pipe body 4, the user can directly hold the thickened portion 431, avoiding the user from being burned by direct contact with the thinner part of the pipe body 4, thus improving the user experience.

[0043] In some embodiments, a wing plate 432 extends from the thickened portion 431 to facilitate gripping by the user.

[0044] In some embodiments, the second connecting pipe 42 and the third connecting pipe 43 can be straight pipes or bent pipes to match the shape of the coffee machine for easy user operation.

[0045] Please refer to Figure 1 and Figure 2 Around the axis of the hinge section 44, a reduced-diameter section 442 is also provided on the hinge section 44. The reduced-diameter section 442 is connected to the ball head 441. The reduced diameter of the reduced-diameter section 442 reduces the interference between the hinge section 44 and the neck 32, improves the adjustable angle of the hinge section 44 when rotating around the sleeve 3, and improves the flexibility of the tube body 4.

[0046] Preferably, the inner surface of the sleeve 3 is provided with an internal thread, and the pressure block 1 is provided with an external thread that matches the internal thread, so as to connect the sleeve 3 and the pressure block 1 by thread. By rotating the pressure block 1, the relative position between the sleeve 3 and the pressure block 1 can be precisely adjusted to adjust the pressure applied by the pressure block 1 to the ball head 441. At the same time, the threaded connection has high strength, ensuring the connection stability between the pressure block 1 and the sleeve 3.

[0047] The specific assembly process of this utility model is as follows:

[0048] The limiting ring 33 is placed inside the sleeve 3, and the movable hinge section 44 extends the ball head 441 into the sleeve 3. The movable support block 2 is inside the sleeve 3, and the arc surface 21 of the support block 2 contacts the ball head 441. The movable elastic element 31 is inside the sleeve 3, and the extension and retraction direction of the elastic element 31 is in the same direction as the axis of the sleeve 3. The pressure block 1 and the sleeve 3 are threaded together until the limiting extension 12 abuts against the sleeve 3. Then the hinge section 44 and the third connecting pipe 43 are threaded together, the third connecting pipe 43 and the second connecting pipe 42 are threaded together, and the second connecting pipe 42 and the first connecting pipe 41 are threaded together, completing the assembly of the easy-to-clean and maintain foaming device of this application.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A foaming device that is easy to clean and maintain, characterized in that, The easy-to-clean and maintain foaming device includes: The tube body includes a hinged section and a first connecting tube detachably connected to the hinged section; a ball head is provided at the end of the hinged section away from the first connecting tube, and the outer surface of the ball head is spherical; A sleeve is fitted onto the ball head; A pressure block is connected to the end of the sleeve away from the pipe body; the pressure block extends into the sleeve; an air hole is provided on the pressure block; one end of the air hole is connected to a steam source, and the other end of the air hole extends into the sleeve; The sleeve is located near the end of the tube body, and the inner wall of the sleeve extends to form a neck; the ball head is disposed between the pressure block and the neck.

2. The foaming device for easy cleaning and maintenance as described in claim 1, characterized in that: An elastic element is provided inside the sleeve between the pressure block and the ball head; a fixing groove is formed at one end of the pressure block near the ball head; the elastic element extends into the fixing groove.

3. The foaming device for easy cleaning and maintenance as described in claim 1, characterized in that: A support block is provided inside the sleeve between the pressure block and the ball head; the surface of the support block near the ball head is a concave arc surface.

4. The foaming device for easy cleaning and maintenance as described in claim 1, characterized in that: A limiting ring is also provided inside the sleeve; the limiting ring is sleeved on the hinge section; the limiting ring is located between the ball head and the neck.

5. The foaming device for easy cleaning and maintenance as described in claim 1, characterized in that: Around the axis of the hinge segment, a reduced-diameter section is also provided on the hinge segment; the reduced-diameter section connects to the ball head.

6. The foaming device for easy cleaning and maintenance as described in claim 1, characterized in that: The hinged section is threadedly connected to the first connecting pipe.

7. The foaming device for easy cleaning and maintenance as described in claim 6, characterized in that: The diameter of the first connecting pipe near the end of the hinge section is reduced to form a contraction section; a step is formed between the contraction section and the first connecting pipe; threads are provided on the contraction section; and a washer is also fitted on the contraction section.

8. The foaming device for easy cleaning and maintenance as described in claim 6, characterized in that: The tube body also includes a second connecting tube; internal threads are respectively provided on the inner walls of both ends of the second connecting tube; the second connecting tube is threadedly connected to both the hinge segment and the first connecting tube; the first connecting tube is connected to the hinge segment through the second connecting tube.

9. The foaming device for easy cleaning and maintenance as described in claim 8, characterized in that: The tube body also includes a third connecting tube; an internal thread is provided on the inner wall of one end of the third connecting tube to thread-connect the hinge section; an external thread is provided on the other end of the third connecting tube to thread-connect the second connecting tube; a thickened portion is provided radially extending on the third connecting tube.

10. The foaming device for easy cleaning and maintenance as described in claim 1, characterized in that: The inner surface of the sleeve is provided with an internal thread; the pressure block is provided with an external thread to engage with the internal thread.

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