Foaming machine

Abstract

The utility model discloses a frothing machine, relates to liquid stirring technical field, said frothing machine includes cup-shaped frame and drive assembly, cup-shaped frame is equipped with the cavity and is communicated with first opening, stirring mouth and liquid outlet of the cavity, the first opening is used for liquid inflow, the liquid outlet is used for liquid outflow; the driving assembly comprises a driving part and a cam, the driving part is provided with a driving shaft, the cam is detachably connected to the driving shaft, and the cam extends into the containing cavity through the stirring opening. According to the technical scheme provided by the utility model, the structure of the foaming machine is simplified, so that the cam is convenient to maintain or replace, and the maintenance efficiency of the foaming machine is improved.

Description

Technical Field

[0001] This utility model relates to the field of liquid stirring technology, and in particular to a foaming machine. Background Technology

[0002] Current beverage mixing technology typically involves manual stirring. However, with the increasing use of vending machines in cities, the mixing mechanisms in existing vending machines are complex. When the stirring cam malfunctions, maintenance personnel need to disassemble the mixing device for inspection and repair. However, due to the complex structure of the mixing device, disassembly often requires significant time and effort and can easily cause further damage. Utility Model Content

[0003] The main purpose of this utility model is to propose a foaming machine that simplifies the structure of the foaming machine, so as to facilitate the maintenance or replacement of the cam and improve the maintenance efficiency of the foaming machine.

[0004] To achieve the above objectives, this utility model proposes a foaming machine, which includes:

[0005] A cup-shaped holder, wherein the cup-shaped holder has a cavity and a first opening, a stirring port and a liquid outlet communicating with the cavity, the first opening being for liquid to flow in and the liquid outlet being for liquid to flow out;

[0006] A drive assembly, comprising a drive element and a cam, wherein the drive element is provided with a drive shaft, and the cam is detachably connected to the drive shaft and extends into the cavity through the stirring port.

[0007] In one embodiment, the drive shaft is provided with a slot, the cam is provided with a mounting hole and a buckle surrounding the mounting hole, the drive shaft passes through the mounting hole, and the buckle is limited to the slot.

[0008] In one embodiment, the latch includes at least a first latch and a second latch, wherein the first latch and the second latch are disposed on different sides of the mounting hole;

[0009] When the first latch is positioned within the slot, the second latch is in a standby state that does not engage with the slot.

[0010] In one embodiment, the side of the cam facing away from the drive member forms a stirring ramp;

[0011] And / or, the side of the cam near the drive member forms a concave surface;

[0012] And / or, the edge of the cam is irregularly circular.

[0013] In one embodiment, the side of the cam facing away from the drive member forms a stirring slope, the stirring slope is provided with a plurality of fluid grooves, the fluid grooves are arranged radially along the cam, and the plurality of fluid grooves are spaced apart circumferentially along the cam.

[0014] In one embodiment, the depth direction of the fluid groove is parallel to the axial direction of the cam, and the depth of the fluid groove gradually changes from the axis of the cam to the edge of the cam;

[0015] And / or, the width direction of the fluid groove is parallel to the tangential direction of the cam, and the width of the fluid groove gradually increases from the axis of the cam to the edge of the cam.

[0016] In one embodiment, the bottom wall of the fluid channel includes at least a first segment and a second segment, which are connected at an angle. The first segment is connected to the end of the second segment near the cam shaft. The depth of the fluid channel gradually increases from the cam shaft towards the connection between the first and second segments, and gradually decreases from the connection between the first and second segments towards the edge of the cam.

[0017] In one embodiment, the stirring port of the cup-shaped frame is provided with a base, a sealing ring is provided between the base and the cup-shaped frame, the base is provided with a through hole communicating with the cavity, at least a portion of the drive shaft passes through the through hole and extends into the cavity, a sealing gasket is provided between the drive shaft and the hole wall of the through hole, and the sealing ring and the sealing gasket are used to prevent liquid leakage.

[0018] In one embodiment, the drive assembly further includes a base plate, with its two sides respectively connected to the drive member and the base. The drive member, the base plate, and the base enclose a cavity. The base is also provided with a drainage hole communicating with the cavity, which is used to allow leaked liquid to flow out.

[0019] In one embodiment, the drive assembly further includes a bushing, which is sleeved on the drive shaft and located on the side of the sealing gasket close to the drive member. The bushing and the sealing gasket cooperate to seal the through hole.

[0020] The present invention relates to a foaming machine comprising a cup-shaped frame, a foaming unit, and a drive assembly. The cup-shaped frame has a cavity for containing liquid, which can be injected into the cavity through a first opening. The drive assembly drives a cam extending into the cavity to rotate, stirring and foaming the liquid within. After stirring, the liquid flows out of the cavity through an outlet. The drive assembly is located on the outside of the cup-shaped frame, and its output end has a drive shaft. The cam is detachably connected to the drive shaft. When the cam needs maintenance or replacement, the drive assembly can be disassembled to remove the cam from the stirring port, and then the cam can be removed from the drive shaft. This greatly simplifies the structure of the foaming machine, facilitating cam maintenance or replacement and improving the overall maintenance of the foaming machine. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of the foaming machine in one embodiment of this utility model;

[0023] Figure 2 An exploded structural diagram of a foaming machine in one embodiment of this utility model;

[0024] Figure 3 A schematic diagram of the structure of the drive component, drive shaft and cam in one embodiment of this utility model;

[0025] Figure 4 A cross-sectional structural diagram of a foaming machine provided in one embodiment of this utility model.

[0026] Explanation of icon numbers:

[0027] 100. Foam maker; 1. Cup-shaped frame; 11. First opening; 12. Second opening; 13. Third opening; 14. Stirring port; 15. Liquid outlet; 16. Chamber; 17. Cup cover; 171. Air outlet; 172. Annular opening; 18. Base; 181. Insertion part; 182. Extension part; 183. Mounting plate; 184. Through hole; 185. Drainage hole; 186. Sealing ring; 187. Sealing gasket; 2 21. Drive assembly; 21. Drive component; 211. Drive shaft; 2111. Slot; 2112. First part; 2113. Second part; 22. Cam; 221. Mounting hole; 222. First snap-fit; 223. Second snap-fit; 224. Stirring slope; 225. Concave surface; 226. Fluid channel; 2261. First section; 2262. Second section; 23. Base plate; 231. Cavity; 24. Bushing.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] 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 scope of protection of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] Please refer to the reference. Figures 1 to 4 As shown, this utility model proposes a foaming machine 100, which includes a cup-shaped frame 1 and a drive assembly 2. The cup-shaped frame 1 is provided with a cavity 16 and a first opening 11, a stirring port 14 and a liquid outlet 15 communicating with the cavity 16. The first opening 11 is used for liquid to flow in, and the liquid outlet 15 is used for liquid to flow out. The drive assembly 2 includes a drive member 21 and a cam 22. The drive member 21 is provided with a drive shaft 211, and the cam 22 is detachably connected to the drive shaft 211. The cam 22 extends into the cavity 16 through the stirring port 14.

[0033] In this embodiment, the cup-shaped frame 1 is provided with a cavity 16 for containing liquid. Liquid can be injected into the cavity 16 from the first opening 11 of the cup-shaped frame 1. The driving member 21 drives the cam 22, which extends into the cavity 16, to rotate, stirring and foaming the liquid in the cavity 16. After stirring, the liquid flows out of the cavity 16 through the outlet 15. The driving member 21 is located on the outside of the cup-shaped frame 1, and the output end of the driving member 21 is provided with a drive shaft 211. The cam 22 is detachably connected to the drive shaft 211. When the cam 22 needs to be repaired or replaced, the driving member 21 can be disassembled to remove the cam 22 from the stirring port 14, and then the cam 22 can be removed from the drive shaft 211. This greatly simplifies the disassembly process of the cam 22, making it easier to repair or replace the cam 22 and facilitating the maintenance of the foaming machine 100.

[0034] Understandably, the cam 22 can be detachably connected to the drive shaft 211 via a snap-fit ​​structure or key pin. The liquid used for frothing in the cavity 16 can be water or various beverages, without specific limitations. In actual implementation, the first opening 11 is located at the top of the cup-shaped frame 1, and the liquid outlet 15 is located at the bottom of the cup-shaped frame 1. A valve can be installed at the liquid outlet 15. When the frother 100 is stirring and frothing, the valve is in the closed state; when the liquid in the cavity 16 needs to flow out, the valve is in the open state. Optionally, a second opening 12 and a third opening 13 communicating with the cavity 16 are also provided on the side wall of the cup-shaped frame 1, so that multiple liquids can be added to the cavity 16 simultaneously. A cup cover 17 is also provided at the first opening 11, with an air outlet 171 and an annular opening 172 connecting to the air outlet 171. The annular opening 172 covers the edge of the first opening 11 and is also partially connected to the first opening 11. When vapor appears in the liquid in the cavity 16, it can be discharged through the air outlet 171. The cam 22 is made of food-grade plastic; the drive component 21 is a permanent magnet DC motor.

[0035] In one embodiment of this utility model, such as Figures 2 to 4As shown, the drive shaft 211 is provided with a slot 2111, the cam 22 is provided with a mounting hole 221 and a buckle surrounding the mounting hole 221, the drive shaft 211 passes through the mounting hole 221, and the buckle is limited to the slot 2111.

[0036] In this embodiment, the drive shaft 211 and the cam 22 are respectively provided with a slot 2111 and a buckle. While the drive shaft 211 passes through the mounting hole 221 of the cam 22, the buckle of the cam 22 engages and limits the movement with the slot 2111 of the drive shaft 211, thus achieving a detachable configuration of the cam 22. Optionally, the buckle can also be provided on the cam 22, with the drive shaft 211 having a buckle corresponding to the slot 2111; no specific limitation is made here. In actual implementation, the drive shaft 211 and the cam 22 are coaxially arranged.

[0037] Understandably, the drive shaft 211 includes a first part 2112 and a second part 2113 connected together. The end of the second part 2113 away from the first part 2112 is connected to the output end of the drive member 21. A limiting step is formed at the connection between the first part 2112 and the second part 2113. The cam 22 is sleeved on the drive shaft 211 from the end of the first part 2112 away from the second part 2113. The cross-section of the first part 2112 is not circular. The wall of the mounting hole 221 is provided with a limiting groove for limiting the first part 2112. When the first part 2112 passes through the mounting hole 221, at least a portion of the first part 2112 is limited within the limiting groove. The limiting groove has three groove walls connected in sequence, which abut against the circumferential surface of the first part 2112 from three directions to limit it. This prevents slippage between the drive shaft 211 and the cam 22 when the drive shaft 211 drives the cam 22 to rotate, and also prevents relative movement between the cam 22 and the drive shaft 211 in the radial direction. The slot 2111 is set on the circumferential surface of the first part 2112. When the cam 22 is sleeved to the position of abutting against the limiting step, the snap of the cam 22 can be snapped into the slot 2111. The slot 2111 and the limiting step are located on both sides of the cam 22, which can prevent the cam 22 from moving on the drive shaft 211.

[0038] In one embodiment of this utility model, such as Figures 2 to 4 As shown, the buckle includes at least a first buckle 222 and a second buckle 223. The first buckle 222 and the second buckle 223 are disposed on different sides of the mounting hole 221. When the first buckle 222 is limited to the slot 2111, the second buckle 223 is in a standby state that does not cooperate with the slot 2111.

[0039] In this embodiment, when the first latch 222 is engaged with the slot 2111, the second latch 223 is in a standby state. Thus, when the first latch 222 is damaged, the cam 22 can be removed and rotated to align the second latch 223 with the slot 2111. Then, the cam 22 can be fitted onto the drive shaft 211, so that the second latch 223 is engaged with the slot 2111. This can extend the service life of the cam 22 and reduce the replacement rate of the cam 22.

[0040] In actual implementation, the number of slots 2111 can be set to one, two, three, or four, etc. The first latches 222 and slots 2111 are configured in a one-to-one correspondence. Optionally, when there are two slots 2111, with the two slots positioned opposite each other on both sides of the drive shaft 211, the number of first latches 222 is also set to two, with the two first latches 222 also positioned on opposite sides of the mounting holes 221. Through the two sets of oppositely positioned first latches 222 and slots 2111, the uniformity of force distribution when the cam 22 is connected to the drive shaft 211 can be effectively improved, effectively ensuring the stability of the connection between the cam 22 and the drive shaft 211, and preventing the cam 22 from shifting when driven by the drive shaft 211.

[0041] In actual implementation, the first latch 222 includes two oppositely arranged latches, and the second latch 223 also includes two latches, which are oppositely arranged on the other two sides of the mounting hole 221. When the cam 22 is connected to the drive shaft 211, the two oppositely arranged first latches 222 engage with the two slots 2111 on the drive shaft 211, and the two oppositely arranged second latches 223 are in a standby state. When the first latch 222 is damaged, the cam 22 can be removed and rotated so that the two standby second latches 223 are aligned with the two slots 2111. Then, the cam 22 is put back onto the drive shaft 211, and the two standby second latches 223 are engaged into the two slots 2111.

[0042] Understandably, the buckle may also include a third buckle, a fourth buckle, etc. At the same time, only one of the first buckle 222, the second buckle 223, the third buckle, and the fourth buckle is engaged with the limit of the buckle slot 2111, while the other buckles are in a standby state.

[0043] In one embodiment of this utility model, such as Figures 2 to 4 As shown, the side of the cam 22 facing away from the drive member 21 forms a stirring slope 224; when the drive member 21 drives the cam 22 to stir the liquid, the stirring slope 224 can enhance the liquid flow effect, making the liquid more uniformly stirred.

[0044] Optionally, the side of the cam 22 near the drive member 21 forms a concave surface 225; the setting of the concave surface 225 can also enhance the flow effect of liquid during stirring and effectively improve the stirring efficiency.

[0045] Optionally, the edge of the cam 22 is set in an irregular circle. When the drive unit 21 drives the cam 22 to rotate, it can break the symmetry of the fluid flow and make the fluid flow in multiple dimensions in different directions, which can further enhance the stirring effect.

[0046] In one embodiment of this utility model, such as Figures 2 to 4 As shown, the side of the cam 22 facing away from the drive member 21 forms a stirring slope 224. The stirring slope 224 is provided with a plurality of fluid grooves 226. The fluid grooves 226 extend radially along the cam 22 and are spaced apart circumferentially along the cam 22.

[0047] In this embodiment, a fluid channel 226 is provided on the stirring inclined surface 224. When the driving member 21 drives the cam 22 to rotate around the axial direction via the driving shaft 211, the fluid channel 226 can enhance the vortex effect on the fluid, further enhancing the stirring effect. Multiple fluid channels 226 are provided, which can effectively improve the uniformity and efficiency of stirring.

[0048] In actual implementation, the fluid groove 226 can be arranged parallel to the radial direction of the cam 22, or it can be bent or folded along the radial direction of the cam 22. No specific limitation is made here.

[0049] In one embodiment of this utility model, such as Figure 3 As shown, the depth direction of the fluid groove 226 is parallel to the axial direction of the cam 22, and the depth of the fluid groove 226 gradually changes from the axis of the cam 22 towards the edge of the cam 22. That is, the depth of the fluid groove 226 gradually changes along the radial direction of the cam 22.

[0050] In this embodiment, the depth of the fluid channel 226 can gradually increase from the axis of the cam 22 towards its edge, or gradually decrease from the axis of the cam 22 towards its edge, or it can first gradually increase and then gradually decrease from the axis of the cam 22 towards its edge, or first gradually decrease and then gradually increase, or it can have multiple segments of increase and decrease. These multiple segments of increase and decrease can be set intermittently or continuously; no specific limitation is made here. It is understood that the variation in the depth of the fluid channel 226 can further enhance the vortex effect on the fluid during stirring, ensuring the uniformity of the fluid being stirred. Optionally, the bottom wall of the fluid channel 226 can be sloped, wavy, or serrated; no specific limitation is made here.

[0051] In one embodiment of this utility model, such as Figure 3As shown, the width direction of the fluid groove 226 is parallel to the tangential direction of the cam 22, and the width of the fluid groove 226 gradually increases from the axis of the cam 22 to the edge of the cam 22.

[0052] In this embodiment, the two side walls of the fluid channel 226 are arranged radially along the cam 22 and parallel to the radial direction of the cam 22. The width direction of the fluid channel 226 is parallel to the tangential direction of the cam 22. The width of the fluid channel 226 gradually increases towards the edge of the cam 22, which can prevent fluid from remaining in the fluid channel 226, further accelerate the flow of fluid, improve the turbulence effect of the fluid, and effectively enhance the stirring effect of the fluid.

[0053] In actual implementation, the fluid groove 226 is set through the edge of the cam 22 to further improve the guiding effect of the fluid groove 226.

[0054] In one embodiment of this utility model, such as Figure 3 As shown, the bottom wall of the fluid channel 226 includes at least a first segment 2261 and a second segment 2262. The first segment 2261 and the second segment 2262 are connected at an angle. The first segment 2261 is connected to the end of the second segment 2262 near the axis of the cam 22. The depth of the fluid channel 226 gradually increases from the axis of the cam 22 toward the connection between the first segment 2261 and the second segment 2262, and gradually decreases from the connection between the first segment 2261 and the second segment 2262 toward the edge of the cam 22.

[0055] In this embodiment, the first segment 2261 and the second segment 2262 are arranged at an angle and connected at an angle. This allows the depth of the fluid channel 226 to increase and then decrease from the axis of the cam 22 towards the edge of the cam 22. This ensures that the resistance of the fluid channel 226 to the liquid flow is within a reasonable range, avoiding excessive resistance and thus reducing the output power of the drive component 21. At the same time, it effectively ensures the vortex effect of the fluid channel 226 on the liquid, improving the stirring efficiency of the liquid.

[0056] In one embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 4 As shown, the stirring port 14 of the cup-shaped frame 1 is provided with a base 18, and a sealing ring 186 is provided between the base 18 and the cup-shaped frame 1. The base 18 is provided with a through hole 184 communicating with the cavity 16. At least a portion of the drive shaft 211 passes through the through hole 184 and extends into the cavity 16. A sealing gasket 187 is provided between the drive shaft 211 and the hole wall of the through hole 184. The sealing ring 186 and the sealing gasket 187 are used to prevent liquid leakage.

[0057] In this embodiment, the base 18 is connected to the cup-shaped frame 1 and covers the stirring port 14. The base 18 and the cup-shaped frame 1 are sealed by a sealing ring 186 to prevent liquid in the cavity 16 from leaking between the inner wall of the base 18 and the stirring port 14. The drive shaft 211 and the hole wall of the through hole 184 are sealed by a sealing gasket 187 to prevent liquid in the cavity 16 from leaking between the drive shaft 211 and the hole wall of the through hole 184.

[0058] Understandably, the cross-sectional area of ​​cam 22 is larger than that of drive shaft 211. Furthermore, to allow cam 22 to extend from stirring port 14 into cavity 16, the cross-sectional area of ​​stirring port 14 is larger than that of cam 22. Therefore, the cross-sectional area of ​​stirring port 14 is much larger than that of drive shaft 211, making direct sealing between drive shaft 211 and the inner wall of stirring port 14 extremely difficult and resulting in poor sealing. To achieve better sealing, a base 18 is provided at stirring port 14, covering most of the area. Drive shaft 211 extends into cavity 16 through through hole 184 in base 18. Since through hole 184 is only for drive shaft 211 to pass through, its cross-sectional area is comparable to that of drive shaft 211. Thus, sealing is only required between the inner wall of stirring port 14 and base 18, and between the wall of through hole 184 and drive shaft 211, effectively ensuring sealing quality.

[0059] In actual implementation, the base 18 is detachably connected to the cup-shaped frame 1 via bolts or snap-fit ​​structures. A portion of the base 18 extends into the stirring port 14, and a limiting annular groove is provided on the outer periphery of the extended portion 181. The sealing ring 186 is limited within the limiting annular groove and abuts against the inner wall of the stirring port 14 to achieve a seal between the base 18 and the cup-shaped frame 1. The sealing gasket 187 is annularly arranged, with its outer axis surrounding a limiting groove 2111. The edge of the through hole 184 is engaged within the limiting groove 2111 and simultaneously abuts against the drive shaft 211 passing through the sealing gasket 187, thus achieving a seal between the wall of the through hole 184 and the drive shaft 211. The sealing ring 186 and the sealing gasket 187 can be made of rubber.

[0060] In one embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 4 As shown, the drive assembly 2 also includes a base plate 23, with the two sides of the base plate 23 connected to the drive component 21 and the base 18 respectively. The drive component 21, the base plate 23 and the base 18 enclose a cavity 231. The base 18 is also provided with a drainage hole 185 communicating with the cavity 231. The drainage hole 185 is used to allow leaked liquid to flow out.

[0061] In this embodiment, the end face of the drive member 21 is connected to one side of the base plate 23, and the other side of the base plate 23 is connected to the base 18, forming a cavity 231 together with the base 18. This connects the drive member 21 and the base 18, and the base 18 is connected by the cup-shaped frame 1, thus improving the overall integrity and strength of the foaming machine 100. It is understood that the base plate 23 has a through hole for accommodating the output end of the drive member 21 and the drive shaft 211. The end of the drive shaft 211 away from the drive member 21 passes through the cavity 231 and the through hole 184 of the base 18, thereby driving the cam 22 located in the cavity 16 to rotate.

[0062] In practical implementation, cavity 231 serves as a buffer chamber to receive liquid leaking from between the wall of through hole 184 and drive shaft 211. The leaked liquid can be drained to the outside through drainage hole 185, thus preventing damage to the electrodes and providing a second layer of safety for the motor. Optionally, drainage hole 185 can be connected to a liquid storage device for temporary storage of the liquid drained from drainage hole 185. Base plate 23 can be connected to drive component 21 and base 18 via bolts or snap-fit ​​structures.

[0063] In actual implementation, the base 18 includes an extension 181 and an extension 182 connected to each other. The extension 181 and the extension 182 are interconnected. The extension 181 extends into the stirring port 14, and a sealing ring 186 is fitted around its outer periphery. A through hole 184 is provided on the end face of the extension 181. The extension 182 is located outside the stirring port 14 and is used to abut against the base plate 23. The end face of the extension 182 is open so that the end faces of the base plate 23 and the drive member 21 can be covered. The extension 181, the extension 182, the base plate 23, and the drive member 21 together form a cavity 231. A mounting plate 183 is also provided on the outer periphery of the connection between the extension 181 and the extension 182. The mounting plate 183 is used to connect with the cup-shaped frame 1 and also to connect with the base plate 23.

[0064] In one embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 4 As shown, the drive assembly 2 also includes a bushing 24, which is sleeved on the drive shaft 211 and located on the side of the sealing gasket 187 near the drive component 21. The bushing 24 and the sealing gasket 187 cooperate to seal the through hole 184.

[0065] In this embodiment, the bushing 24 is fitted onto the drive shaft 211, and the sealing ring 186 abuts against the sealing gasket 187 on the side near the drive member 21. Together with the sealing gasket 187, they seal the gap between the drive shaft 211 and the wall of the through hole 184, further improving the sealing performance between the drive shaft 211 and the wall of the through hole 184 and preventing liquid leakage.

[0066] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A foaming machine, characterized in that, The foaming machine includes: A cup-shaped holder, wherein the cup-shaped holder has a cavity and a first opening, a stirring port and a liquid outlet communicating with the cavity, the first opening being for liquid to flow in and the liquid outlet being for liquid to flow out; A drive assembly, comprising a drive element and a cam, wherein the drive element is provided with a drive shaft, and the cam is detachably connected to the drive shaft and extends into the cavity through the stirring port.

2. The foaming machine as described in claim 1, characterized in that, The drive shaft is provided with a slot, the cam is provided with a mounting hole and a buckle surrounding the mounting hole, the drive shaft passes through the mounting hole, and the buckle is limited to the slot.

3. The foaming machine as described in claim 2, characterized in that, The buckle includes at least a first buckle and a second buckle, and the first buckle and the second buckle are disposed on different sides of the mounting hole; When the first latch is positioned within the slot, the second latch is in a standby state that does not engage with the slot.

4. The foaming machine as described in claim 1, characterized in that, The side of the cam facing away from the drive member forms a stirring slope; And / or, the side of the cam near the drive member forms a concave surface; And / or, the edge of the cam is irregularly circular.

5. The foaming machine as described in claim 4, characterized in that, The side of the cam facing away from the drive member forms a stirring slope. The stirring slope is provided with a plurality of fluid grooves. The fluid grooves are arranged radially along the cam and spaced apart circumferentially along the cam.

6. The foaming machine as described in claim 5, characterized in that, The depth direction of the fluid groove is parallel to the axis of the cam, and the depth of the fluid groove gradually changes from the axis of the cam to the edge of the cam. And / or, the width direction of the fluid groove is parallel to the tangential direction of the cam, and the width of the fluid groove gradually increases from the axis of the cam to the edge of the cam.

7. The foaming machine as described in claim 6, characterized in that, The bottom wall of the fluid channel includes at least a first section and a second section, which are connected at an angle. The first section is connected to the end of the second section near the cam shaft. The depth of the fluid channel gradually increases from the cam shaft towards the connection between the first and second sections, and gradually decreases from the connection between the first and second sections towards the edge of the cam.

8. The foaming machine according to any one of claims 1 to 7, characterized in that, The stirring port of the cup-shaped frame is provided with a base, and a sealing ring is provided between the base and the cup-shaped frame. The base is provided with a through hole communicating with the cavity. At least a portion of the drive shaft passes through the through hole and extends into the cavity. A sealing gasket is provided between the drive shaft and the wall of the through hole. The sealing ring and the sealing gasket are used to prevent liquid leakage.

9. The foaming machine as described in claim 8, characterized in that, The drive assembly also includes a base plate, with its two sides connected to the drive member and the base, respectively. The drive member, the base plate, and the base together form a cavity. The base is also provided with a drainage hole communicating with the cavity, which is used to allow leaked liquid to flow out.

10. The foaming machine as described in claim 8, characterized in that, The drive assembly also includes a bushing, which is fitted onto the drive shaft and located on the side of the sealing gasket close to the drive component. The bushing and the sealing gasket cooperate to seal the through hole.

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