Electric bubble machine

Abstract

The present application discloses an electric bubble machine, comprising a double-ended motor, wherein one end of the double-ended motor drives a fan, and a bubble-blowing airflow is blown toward a bubble generating mechanism by means of the fan; the other end of the double-ended motor drives a liquid feeding mechanism to deliver a bubble liquid to the bubble generating mechanism; the bubble generating mechanism comprises a small-diameter rear bubble-blowing member and a large-diameter front bubble-blowing member; the rear bubble-blowing member is disposed close to an air outlet side of the fan, and the front bubble-blowing member is disposed away from the air outlet side of the fan; and the rear bubble-blowing member is located on the inner side of the front bubble-blowing member in a radial direction. The electric bubble machine of the present application can blow bubbles continuously, and can form bubbles of different sizes and different types, achieving a good bubble generation effect, and providing great fun.

Description

Electric bubble machine Technical Field

[0001] This application relates to the field of toy technology, and more particularly to an electric bubble machine. Background Technology

[0002] Generally, automatic bubble-blowing toys consist of a foam nozzle, an air jet pipe, a dispensing mechanism, a motor and fan, a container for foam liquid, and a foam liquid delivery pipe. During play, the dispensing mechanism squeezes the foam liquid from the container through the dispensing pipe into the foam liquid delivery pipe, while the fan continuously blows air into the air outlet pipe, thus creating bubbles. However, existing automatic bubble-blowing devices produce bubbles of limited shapes and patterns, lack continuity, are prone to interruptions, and produce a small number of bubbles per unit time. This lack of interest can easily cause children to lose interest and fails to meet their play needs.

[0003] Application content

[0004] The technical problem to be solved by this application is: This application provides an electric bubble machine that can continuously blow bubbles, form bubbles of different sizes and types, and has a good bubble-blowing effect and high fun.

[0005] The technical solution adopted by this application to solve its technical problem is: an electric bubble machine, including a dual-head motor, one end of the dual-head motor drives a fan to blow bubble airflow to the bubble-generating mechanism through the fan, and the other end of the dual-head motor delivers bubble liquid to the bubble-generating mechanism through a liquid delivery mechanism. The bubble-generating mechanism includes a small-diameter rear bubble-blowing component and a large-diameter front bubble-blowing component. The rear bubble-blowing component is arranged close to the air outlet side of the fan, and the front bubble-blowing component is arranged away from the air outlet side of the fan. In the radial direction, the rear bubble-blowing component is located inside the front bubble-blowing component.

[0006] Furthermore, in order to form a liquid film and blow out large bubbles in the front bubble ring, the front bubble element includes a front bubble ring. The inner ring of the front bubble ring is provided with a liquid storage tank A, and the end face of the front bubble ring is provided with a liquid storage guide groove B in the circumferential direction. A guide gap E is formed between the liquid storage guide groove B and the outer ring of the front bubble ring. The bubble liquid entering the bubble ring flows from top to bottom along the liquid storage guide groove B and the guide gap E, and the bubble liquid overflowing from the liquid storage guide groove B flows to the liquid storage tank A.

[0007] Furthermore, in order to ensure that the bubble liquid can flow evenly and quickly onto the front bubble ring, the upper end of the front bubble ring is symmetrically provided with liquid inlet ports that communicate with the liquid delivery mechanism. The bubble liquid enters the bubble ring from both sides and flows downward.

[0008] Furthermore, in order to form a uniform bubble film on both front bubble rings, the front bubble element includes two connected front bubble rings, which are symmetrically arranged and have a gap between them. The bubble liquid is diverted to the front bubble rings on both sides through the gap, and the liquid storage tank A between the front bubble rings is aligned, so that the bubble liquid is transferred and flows between the bubble rings.

[0009] Furthermore, in order to form non-interfering blowing airflows for the front and rear blowing components respectively, an air guide component coaxial with the front blowing component is provided between the fan and the rear blowing component. An air guide ring is provided between the inner and outer rings of the air guide component, and the air guide ring divides the air guide component into an inner air outlet ring and an outer air outlet ring. The blowing airflow is formed by the air guide component into an inner ring blowing airflow from the inner air outlet ring to the rear blowing component and an outer ring blowing airflow from the outer air outlet ring to the front blowing component.

[0010] Furthermore, to make it easier to blow out small and large bubbles, the air guide ring has a thickness, and the inner ring bubble blowing airflow and the outer ring bubble blowing airflow are two independent airflows.

[0011] Furthermore, in order to increase the number of small bubbles and blow them further, the end face of the air guide ring facing the fan has an axially inclined air guide surface, and multiple air guide plates are connected between the outer and inner rings of the air guide ring and the air guide component.

[0012] Furthermore, in order to form multiple small bubbles at once, the post-bubble component has a post-bubble ring through which bubble liquid passes, the post-bubble ring has a liquid storage tank C inside, the post-bubble component has a liquid inlet above it that communicates with the liquid delivery mechanism, the post-bubble ring is located below the liquid inlet, and the post-bubble ring is connected to other post-bubble rings below it through a flow channel.

[0013] Furthermore, in order to provide other ways of forming small bubbles, the post-bubble blowing component is a rotating bubble blowing assembly, which includes an external gear that meshes with gear b through a gear shaft, and a plurality of post-bubble blowing rings that rotate with the external gear on the inner side of the external gear.

[0014] Furthermore, to make the liquid film more uniform, a scraper mechanism is also included, which includes a swinging scraper that swings back and forth on the surface of the front bubble ring and / or the rear bubble ring to form a liquid film. The swinging scraper has a liquid storage tank D.

[0015] Furthermore, in order to achieve automatic reset of the swing scraper, the two sides of the swing scraper are connected to the front end of the rotating plate, and the other end of the rotating plate is rotatably connected to the connecting column of the housing. A reset torsion spring is connected to the connecting column, and one end of the reset torsion spring is connected to the fixed column of the housing.

[0016] Furthermore, in order to accelerate the movement speed of the oscillating scraper, the rotating plate is driven to oscillate by a transmission mechanism. The transmission mechanism has a turntable with an eccentric column on it. The rotating plate has an inclined surface. The eccentric column pushes the inclined surface to make the rotating plate swing downward. The separation of the eccentric column from the inclined surface causes the reset torsion spring to reset the rotating plate.

[0017] Furthermore, the transmission mechanism includes a gear c connected to the liquid delivery mechanism, the gear c meshing with gear d, the gear d meshing with gear e, the gear e meshing with gear f, and the gear f having a fixed transmission shaft, with turntables connected to both ends of the transmission shaft.

[0018] Furthermore, to avoid the accumulation of fine foam liquid between the guide posts and the front bubble ring, guide posts are provided on both sides of the front bubble ring, and guide posts are connected to both sides of the front bubble ring of the front bubble element, with a gap between the guide posts and the front bubble ring.

[0019] Furthermore, in order to ensure the running trajectory of the swing scraper, the two ends of the swing scraper form guide grooves that surround the outside of the guide post and are in clearance fit with the guide post.

[0020] Furthermore, in order to reduce noise and bubble solution waste, the front end of the housing has a cover, the cover has a groove that cooperates with the rotating plate, a buffer pad is provided above the groove, and a collection port for collecting bubble solution is provided below the cover.

[0021] Compared with the prior art, the beneficial effects of this application are:

[0022] The electric bubble machine of this application can blow bubbles of different sizes by using front and rear bubble blowing components with different structures, thus obtaining more bubbles of different sizes and types.

[0023] The electric bubble machine of this application, through the cooperation of the liquid storage guide groove B and the guide gap E of the front bubble ring, can make the bubble liquid continuously flow into the liquid storage tank A to form a bubble film. During the bubble blowing process, the front bubble ring can form continuous large bubbles without interruption of bubbles, resulting in good bubble blowing effect and good continuity and stability.

[0024] The electric bubble machine of this application can blow more even bubble film and produce better bubble effect by swinging the scraper back and forth on the bubble blowing ring. Attached Figure Description

[0025] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1 is a three-dimensional structural diagram of the electric bubble machine of this application;

[0027] Figure 2 is a schematic diagram of the internal structure of an electric bubble machine;

[0028] Figure 3 is a schematic diagram of the liquid delivery mechanism and drive gear set of the electric bubble machine.

[0029] Figure 4 is the front view of Figure 3;

[0030] Figure 5 is a schematic diagram of the connection structure between the bubble generation mechanism and the scraper mechanism;

[0031] Figure 6 is a partial cross-sectional view of the front bubble blower;

[0032] Figure 7 is a partial structural schematic diagram of the front bubble ring;

[0033] Figure 8 is a schematic diagram of another state of the electric bubble machine;

[0034] Figure 9 is a structural schematic diagram of Embodiment 2 of the electric bubble machine of this application.

[0035] Figure 10 is a schematic diagram of the air guide component;

[0036] Figure 11 is a schematic diagram of the airflow direction of the bubble blowing through the air guide;

[0037] Figure 12 is a structural schematic diagram of Embodiment 3 of the electric bubble machine of this application;

[0038] Figure 13 is a structural schematic diagram of Embodiment 4 of the electric bubble machine of this application;

[0039] Figure 14 is a structural schematic diagram of Embodiment 5 of the electric bubble machine of this application;

[0040] Figure 15 is a structural schematic diagram of Embodiment 6 of the electric bubble machine of this application;

[0041] In the diagram: 1. Housing, 11. Connecting column, 12. Fixing column, 2. Dual-head motor, 21. Output gear, 3. Fan, 4. Air guide, 41. Air guide ring, 42. Inner air outlet ring, 43. Outer air outlet ring, 44. Air guide surface, 45. Air guide plate, 5. Cover, 51. Buffer pad, 52. Liquid collection port, 6. Liquid delivery mechanism, 7. Front bubble blower, 71. Front bubble blower ring, 72. Liquid inlet, 73. Guide column, 8. Rear bubble blower, 81. Rear bubble blower ring, 82. External gear, 83. Liquid inlet, 9. Scraper mechanism, 91. Rotating plate, 92. Swinging scraper, 93. Return torsion spring, 94. Inclined surface, 95. Drive shaft, 96. Turntable, 97. Eccentric column, 98. Guide groove. Detailed Implementation

[0042] The present application will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present application, and therefore only show the components relevant to the present application.

[0043] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0045] As shown in Figures 1 and 2, an electric bubble machine includes a housing 1, and a dual-head motor 2 is installed inside the housing 1.

[0046] One output end of the dual-head motor 2 is connected to the fan 3, and the front end of the fan 3 is provided with air guides 4 at intervals. The motor drives the fan 3 to rotate, and the airflow passes through the air guides 4 and blows forward to the bubble outlet mechanism. The air guides 4 are evenly spaced around their circumference with air guide plates, and the air guides 4 and the bubble outlet mechanism are located inside the cover 5 at the front end of the housing 1.

[0047] The other output end of the dual-head motor 2 is connected to the liquid delivery mechanism 6 via the output gear 21. The liquid delivery mechanism 6 is divided into two sets of liquid delivery gears. The upper liquid delivery mechanism 6 delivers the bubble liquid to the front bubble blowing component 7 of the bubble outlet mechanism through the liquid delivery hose, and the lower liquid delivery mechanism 6 delivers the bubble liquid to the rear bubble blowing component 8 of the bubble outlet mechanism through the liquid delivery hose.

[0048] As shown in Figure 3, the liquid delivery mechanism 6 includes gear a meshing with output gear 21, and gear b meshing with gear a. The liquid delivery hose delivers the bubble solution through gear compression. This delivery method is a conventional structure for bubble machines and will not be described in detail here.

[0049] The liquid delivery mechanism 6 below is also connected to the transmission mechanism, which includes gear c meshing with gear b, gear c meshing with gear d, gear d meshing with gear e, gear e meshing with gear f, and a transmission shaft 95 fixed in gear f. Turntables 96 are connected to both ends of the transmission shaft 95, and an eccentric column 97 is provided on the outer side of the turntable 96.

[0050] The housing 1 is equipped with a scraper mechanism 9, which includes a rotating plate 91 rotatably connected to both sides of the housing 1. The other end of the rotating plate 91 is rotatably connected to a connecting post 11 of the housing 1, and a return torsion spring 93 is connected to the connecting post 11. One end of the return torsion spring 93 is connected to a fixed post 12 of the housing 1, and the other end is connected to a post on the rotating plate. The bottom of the rotating plate 91 has an inclined surface 94. The turntable 96 rotates counterclockwise, causing the eccentric post 97 to push the inclined surface 94, thereby causing the rotating plate 91 to swing downwards. As the turntable continues to rotate, the eccentric post 97 separates from the inclined surface 94, and the return torsion spring 93 provides a restoring force, causing the rotating plate 91 to swing upwards quickly to reset. A swing scraper 92 is fixedly connected to the upper end of the rotating plate 91. The swing scraper 92 swings back and forth synchronously with the rotating plate 91. The cover 5 is equipped with a groove that mates with the rotating plate 91, and a buffer pad 51 is provided above the groove. The buffer pad 51 can eliminate the sound of the rotating plate 91 impacting the cover 5 during its up-and-down movement. To ensure safety and prevent children from getting their hands pinched, an additional clutch or anti-pinch device can be installed.

[0051] The scraper mechanism 9 can also adopt a crank-connecting rod mechanism, which can also realize the up-and-down movement of the oscillating scraper 92. The specific function of the oscillating scraper 92 will be described in detail below in conjunction with the bubble-generating mechanism.

[0052] As shown in Figure 4, the bubble-generating mechanism includes a front bubble blower 7 and a rear bubble blower 8. The front bubble blower 7, rear bubble blower 8, and air guide 4 are all located within the housing 5. The front bubble blower 7 and rear bubble blower 8 are spaced apart, with the rear bubble blower 8 positioned on the near-wind side closer to the fan, and the front bubble blower 7 positioned on the far-wind side relatively farther from the fan. The rear bubble blower 8 is closer to the blowing airflow, resulting in a faster blowing speed and a greater number and density of small bubbles. The front bubble blower 7 is relatively far from the rear bubble blower 8; due to the reduced airflow velocity, larger bubbles are easier to form, and the blown bubbles are more stable, remaining intact in the air for a longer period without bursting.

[0053] As shown in Figures 5 and 6, the front bubble blowing component 7 is connected to the housing 1. In this embodiment, the front bubble blowing component 7 includes two opposing front bubble blowing rings 71. The front bubble blowing rings 71 are symmetrically arranged, and a gap is formed between them. The bubble liquid is diverted through the gap to the front bubble blowing rings 71 on both sides. The two front bubble blowing rings 71 are assembled by mating with plug-in posts and plug-in holes. The upper end of the front bubble blowing rings 71 is symmetrically provided with inlet ports 72 that communicate with the liquid delivery mechanism 6. The bubble liquid enters the bubble blowing rings from both sides and flows downward. The bubble liquid from the liquid delivery mechanism 6 is diverted into the two inlet ports 72 through two liquid delivery hoses. The two inlet ports 72 divert the bubble liquid and enter the front bubble blowing component 7 from the left and right sides, ensuring that the bubble liquid is dispersed into the two front bubble blowing rings 71. Since there are two front bubble blowing rings 71, it is equivalent to forming bubble films on both the front and rear sides of the front bubble blowing component 7. When the airflow blows over the two front bubble blowing rings 71, the two bubble films will continuously produce large bubbles.

[0054] As shown in Figure 7, the inner ring of the front bubble ring 71 is provided with a liquid storage tank A, and the end face of the front bubble ring 71 is provided with a liquid storage guide groove B. A guide gap E is formed between the liquid storage guide groove B and the outer ring of the front bubble ring 71. The bubble liquid entering the front bubble ring 71 flows from top to bottom along the liquid storage guide groove B and the guide gap E, and the bubble liquid overflowing from the liquid storage guide groove B flows to the liquid storage tank A. The flow direction of the bubble liquid is shown in the figure. Since the liquid inlet 72 is located at the top of the front bubble ring 71, the bubble liquid flows down along the guide gap E after flowing in from the liquid inlet 72. The bubble liquid will gradually fill each liquid storage guide groove B. When the liquid storage guide groove B is full, the excess bubble liquid will overflow and flow down to the liquid storage tank A, thereby forming a bubble film on the front bubble ring 71. Due to the paired arrangement of the front bubble rings 71, combined with the liquid storage tank A and the liquid storage guide groove B, the capacity for storing bubble liquid is greatly improved, which can effectively reduce leakage.

[0055] The end face of the front bubble ring 71 has a corresponding swing scraper 92. The swing scraper 92 swings back and forth on the surface of the front bubble ring 71, forming a uniform liquid film on the front bubble ring 71 during the reciprocating movement. Furthermore, since the two front bubble elements 7 are arranged opposite each other, their liquid storage tanks A are also aligned, allowing for the flow of bubble liquid between the liquid storage tanks A of the two front bubble elements 7, ensuring that the bubble film formed on both sides of the front bubble element 7 is relatively uniform.

[0056] The width of the oscillating scraper 92 is the same as the width of the front bubble ring 71. When the liquid reservoir D scrapes across the liquid reservoir A of the front bubble ring 71, sufficient contact area is ensured between the two reservoirs to guarantee the formation of a uniform liquid film within the front bubble ring 71. Simultaneously, some bubble liquid remains in the liquid reservoir D. During the reciprocating motion of the oscillating scraper 92, the liquid reservoir D can retain excess bubble liquid or replenish the liquid reservoir A, further ensuring the uniformity of the liquid film within the front bubble ring 71.

[0057] Two swinging scrapers 92 swing back and forth synchronously on two front bubble rings 71. The liquid film formed on the two front bubble rings 71 is uniform. When the blowing air passes through the two front bubble rings 71 one after the other, the two front bubble rings 71 can more easily and quickly blow out large bubbles. The number of large bubbles is dense and they are not easy to break.

[0058] As shown in Figure 5, the rear bubble blower 8 is connected to the housing 1 and is arranged vertically. The rear bubble blower 8 has a liquid inlet 15 at its top, which communicates with the liquid delivery mechanism 6. Below the liquid inlet 15, a circular rear bubble blower ring 81 is connected via a flow channel, with the inner ring of the rear bubble blower ring 81 being continuous. In this embodiment, another rear bubble blower ring 81 is also connected below the rear bubble blower ring 81 via a flow channel. The bubble liquid enters the rear bubble blower 8 from the liquid inlet 15 and flows downwards along the flow channel. The number of rear bubble blower rings 81 can be two, three, or more.

[0059] The rear bubble ring 81 has an annular flow channel. After the bubble liquid enters the rear bubble ring 81, it will split to the left and right at the upper end of the annular flow channel. The bubble liquid passes through the rear bubble ring 81 from both sides, so that the bubble liquid can be evenly distributed in the rear bubble ring 81. Finally, the bubble liquid merges at the bottom of the annular flow channel and continues to flow downward. After passing through the flow channel below, it enters another rear bubble ring 81 and repeats the above process.

[0060] A liquid storage tank C is formed on the inner ring of the rear bubble ring 81. The liquid storage tank C is distributed along the annular flow channel, and the bubble liquid will remain in the liquid storage tank C. This can increase the liquid storage capacity of the rear bubble ring 81 and improve the continuity of bubble production.

[0061] A swing scraper 92 is also provided at the front of the rear bubble blower 8, and its function is basically the same as described above. The swing scraper 92 swings back and forth on the surface of the rear bubble blower 8. As the swing scraper 92 moves from top to bottom along the rear bubble blower 8, it causes the bubble liquid entering the annular flow channel to form a uniform liquid film at the rear bubble blower ring 81. When the airflow blows onto the liquid film, a large number of continuous bubbles can be blown out within the rear bubble blower ring 81. During its movement, the swing scraper 92 drives the bubble liquid to flow, accelerating the flow speed of the bubble liquid within the rear bubble blower 8, which ensures that the liquid film of the upper and lower rear bubble blower rings 81 is uniform, so that the size of the bubbles blown from both is basically the same.

[0062] Because the rear bubble blower 8 is close to the fan, the airflow velocity is faster there, making it easier to form small bubbles, and the small bubble generation rate is also faster. Combined with multiple rear bubble blower rings 81, this results in a denser number of small bubbles. The small bubbles are propelled forward by the blowing airflow; some are quickly blown out, while others are surrounded by larger bubbles as they pass through the front bubble blower ring 71, forming a bubble structure where large bubbles enclose smaller bubbles. Therefore, this electric bubble machine can simultaneously form small bubbles, large bubbles, and bubbles within bubbles.

[0063] The front blower 7 has guide posts 73 on both sides, and the upper and lower ends of the guide posts 73 are inserted into the housing 5. The two ends of the swing scraper 92 form guide grooves 98 that surround the outside of the guide posts 73 and are in clearance fit with the guide posts 73, thereby ensuring that the swinging motion trajectory is close to the surface of the rear blower 8 and the front blower 7, ensuring the scraping effect.

[0064] As shown in Figures 2 and 8, the rotating plate 91 is swung downwards until it is reset by the torsion spring, which is one scraping stroke. This stroke takes about 0.5 seconds. The rapid movement of the rotating plate 91 can ensure that the liquid film is uniform, and the airflow blown by the fan 3 can ensure that the formed bubbles are of uniform size.

[0065] The working principle of this application is as follows: The dual-head motor 2 starts, driving the fan 3, liquid delivery mechanism 6, and transmission mechanism to begin operation. The liquid delivery mechanism 6 squeezes the delivery hose, transporting the bubble solution to the front bubble blower 7 and the rear bubble blower 8. The bubble solution flows into the front bubble blower 7 and the rear bubble blower 8. Simultaneously, the transmission mechanism drives the turntable 96 to rotate, and the eccentric column 97 rotates counterclockwise, pushing the inclined surface 94 of the rotating plate 91. At this time, the rotating plate 91 begins to swing downwards, and the swing scraper 92 moves synchronously, forming a uniform liquid film on the front bubble blower 7 and the rear bubble blower 8. The airflow blows the liquid film to form bubbles. The bubbles formed by the rear bubble blower 8 continue to move towards the front bubble blower 7. At the same time, the bubbles formed by the front bubble blower 7 also wrap around the bubbles formed by the rear bubble blower 8, forming multi-layered bubbles, thus increasing the variety of bubble types.

[0066] Example 2, as shown in Figures 9 to 11, has three rear bubble forming rings 81 inside the rear bubble forming component 8. The upper forming ring 81 is connected to the lower rear forming rings 81 through the flow channels on the left and right sides. Of course, the arrangement of the rear bubble forming rings 81 is not limited to the above structure, and their number can also be reasonably selected as needed.

[0067] At the bottom of the cover 5, there is also a liquid collection port 52, through which a very small amount of bubble-blowing liquid that failed to produce bubbles flows back into the bubble bottle.

[0068] The difference between Example 2 and Example 1 lies in the structure of the air guide. In this example, an air guide ring 41 is provided between the inner and outer rings of the air guide. The air guide ring 41 divides the air guide into an inner outlet ring 42 and an outer outlet ring 43. The bubble-blowing airflow passes through the air guide ring 41 to form an inner ring bubble-blowing airflow blowing from the inner outlet ring 42 towards the rear bubble-blowing component 8 and an outer ring bubble-blowing airflow blowing from the outer outlet ring 43 towards the front bubble-blowing component 7. The airflow direction is shown in Figure 11. The arrow on the left represents the bubble-blowing airflow, the arrow on the right outer perimeter represents the outer ring bubble-blowing airflow, and the airflow on the right inner perimeter represents the inner ring bubble-blowing airflow. The air guide ring 41 has a thickness, and the inner ring bubble-blowing airflow and the outer ring bubble-blowing airflow are two independent airflows. The inner outlet ring 42 is directly opposite the rear bubble-blowing component 8, and the diameter of the outer ring of the air guide 4 is slightly smaller than the diameter of the inner ring of the front bubble-blowing component 7. The air guide ring 41 has an axially inclined air guide surface 44 on its end face facing the fan. Multiple air guide plates 45 are connected between the air guide ring 41 and the inner and outer rings of the air guide component 4. The air guide plates 45 are connected to the outer and inner rings of the air guide component. The airflow generated by the fan is split by the air guide ring 41. Part of it is blown towards the rear bubble blower 8 through the inner air outlet ring 42, and small bubbles are blown out of the rear bubble blower 8. The other part is blown towards the front bubble blower 7 through the outer air outlet ring 43, and large bubbles are blown out of the front bubble blower 7. Because the rear bubble blower 8 is close to the center of the fan, the airflow blowing towards it is relatively weaker. Therefore, under the action of the air guide surface 44 on the back of the air guide ring 41, part of the airflow near the outer air outlet ring 43 is introduced into the inner air outlet ring 42, slightly enhancing the airflow in the inner air outlet ring 42. Moreover, through the action of the air guide ring 41, the flow direction of the inner ring bubble blowing airflow in the inner air outlet ring 42 is approximately parallel to the axial direction. The inner ring bubble blowing airflow blows onto all the bubble films on the rear bubble blowing ring 81, allowing small bubbles to be blown out axially. Due to the combined action of the outer ring of the air guide 4 and the air guide ring 41, the outer ring bubble blowing airflow blown from the outer air outlet ring 43 will be closer to the outer edge of the front bubble blowing ring 71. Combined with the inner ring bubble blowing airflow, this makes it easier for large bubbles to form.

[0069] The remaining structure of Example 2 is the same as that of Example 1.

[0070] Example 3, as shown in Figure 12, differs from Example 1 or 2 in that only one front bubble ring 71 is provided, and a swing scraper 92 is provided in front of the front bubble ring 71, which can achieve the same bubble production effect as the comparative document 1.

[0071] Example 4, as shown in Figure 13, differs from Example 1 or 2 in that only one front bubble ring 71 is provided, and a swing scraper 92 is provided behind the front bubble ring 71, which can achieve the same bubble production effect as the comparative document 1.

[0072] Example 5, as shown in Figure 14, differs from Example 2 in that the rear bubble-blowing component is a rotary bubble-blowing assembly. The rotary bubble-blowing assembly includes an external gear 82, which meshes with gear b via a gear shaft. Multiple rear bubble-blowing rings 81, which rotate with the external gear 82, are provided on the inner side of the external gear 82. The rotary bubble-blowing assembly is a conventional bubble-blowing component, and its structure will not be described in detail here.

[0073] Example 6, as shown in Figure 15, has guide posts on both sides of the front bubble ring. The guide posts are connected to both sides of the front bubble ring of the front bubble component, and there is a gap between the guide posts and the front bubble ring. The guide posts and the front bubble ring are connected by a middle connecting rib, which can protrude forward to avoid interfering with the movement of the swing scraper. The rest of the structure in this example is the same as in Example 1. If the guide posts and the front bubble ring are tightly fitted together, after the electric bubble machine has been working for a period of time, small bubbles containing air will accumulate between them. These bubbles will fall into the bottom of the casing, causing foam accumulation inside the casing. Even if the collection port 52 is used for suction, the air-containing bubbles are difficult to remove. Therefore, by setting a gap between the guide posts and the front bubble ring, the air-containing bubbles can be blown away by the outer ring bubble-blowing airflow, preventing the accumulation of air-containing bubbles.

[0074] In summary, the electric bubble machine of this application can continuously blow bubbles, forming bubbles of different sizes and types, with good bubble-blowing effect and high fun.

[0075] The above description is based on the preferred embodiments of this application. Through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this application. The technical scope of this application is not limited to the contents of the specification, but must be determined by the scope of the claims.

Claims

1. An electric bubble machine, comprising a dual-head motor (2), one end of which drives a fan to blow a bubble-generating airflow to a bubble-generating mechanism via a fan (3), and the other end of which supplies bubble solution to the bubble-generating mechanism via a liquid-feeding mechanism (6), characterized in that, The bubble-generating mechanism includes a small-diameter rear bubble-blowing component (8) and a large-diameter front bubble-blowing component (7). The rear bubble-blowing component (8) is located near the air outlet side of the fan (3), and the front bubble-blowing component (7) is located away from the air outlet side of the fan (3). In the radial direction, the rear bubble-blowing component (8) is located inside the front bubble-blowing component (7).

2. The electric bubble machine according to claim 1, characterized in that, The front bubble blowing component (7) includes a large-diameter front bubble blowing ring (71). The inner ring of the front bubble blowing ring (71) is provided with a liquid storage tank A. The end face of the front bubble blowing ring (71) is provided with a liquid storage guide groove B in the circumferential direction. A guide gap E is formed between the liquid storage guide groove B and the outer ring of the front bubble blowing ring (71). The bubble liquid entering from the liquid inlet fills the liquid storage guide groove B step by step from top to bottom. The bubble liquid overflowing from the liquid storage guide groove B flows to the liquid storage tank A.

3. The electric bubble machine according to claim 2, characterized in that, The upper end of the front bubble ring (71) is symmetrically provided with a liquid inlet (72) that communicates with the liquid delivery mechanism (6). The liquid inlet (72) is located at the top of the front bubble ring (71). The bubble liquid enters the bubble ring from both sides and flows downward.

4. The electric bubble machine according to claim 3, characterized in that, The front bubble blowing member (12) includes two connected front bubble blowing rings (71), which are symmetrically arranged and form a gap between them. The bubble liquid is diverted to the front bubble blowing rings (71) on both sides through the gap. The liquid storage tank A between the front bubble blowing rings (71) is aligned, so that the bubble liquid is transferred and flows between the front bubble blowing rings (71).

5. The electric bubble machine according to any one of claims 1-4, characterized in that, A guide (4) coaxial with the front bubbler (7) is provided between the fan (3) and the rear bubbler (8). A guide ring (41) is provided between the inner and outer rings of the guide (4). The guide ring (41) divides the guide (4) into an inner air outlet ring (42) and an outer air outlet ring (43). The bubble blowing airflow forms an inner ring bubble blowing airflow from the inner air outlet ring to the rear bubbler (8) and an outer ring bubble blowing airflow from the outer air outlet ring to the front bubbler (7) through the guide ring (41).

6. The electric bubble machine according to claim 5, characterized in that, The air guide ring (41) has a thickness, and the inner ring blowing airflow and the outer ring blowing airflow are two independent airflows.

7. The electric bubble machine according to claim 6, characterized in that, The air guide ring (41) has an axially inclined air guide surface (44) on the end face facing the fan, and multiple air guide plates are connected between the outer and inner rings of the air guide ring (41) and the air guide component (4).

8. The electric bubble machine according to claim 7, characterized in that, The post-bubbling element (8) has a small-diameter post-bubbling ring (81), and the post-bubbling ring (81) has a liquid storage tank C inside. The post-bubbling element (8) has a liquid inlet (83) above it that communicates with the liquid delivery mechanism (6). The post-bubbling ring (81) is located below the liquid inlet (83), and the post-bubbling ring (81) is connected to other post-bubbling rings (81) below it through a flow channel.

9. The electric bubble machine according to claim 7, characterized in that, The rear bubble blowing component (8) is a rotating bubble blowing assembly. The rotating bubble blowing assembly includes an external gear (82), which meshes with gear b through a gear shaft. The inner side of the external gear (82) is provided with a plurality of small-diameter rear bubble blowing rings (81) that follow the rotation of the external gear (82).

10. The electric bubble machine according to claim 8 or 9, characterized in that, It also includes a scraper mechanism (9), which includes a swing scraper (92) that swings back and forth on the surface of the bubble ring to form a liquid film, and the swing scraper (92) has a liquid storage tank D.

11. The electric bubble machine according to claim 10, characterized in that, The swing scraper (92) is connected to the front end of the rotating plate (91) on both sides. The other end of the rotating plate (91) is rotatably connected to the connecting post (11) of the housing (1). A reset torsion spring (93) is connected to the connecting post (11). One end of the reset torsion spring (93) is connected to the fixing post (12) of the housing (1).

12. The electric bubble machine according to claim 11, characterized in that, The rotating plate (91) is driven to swing by a transmission mechanism. The transmission mechanism has a turntable (96) with an eccentric column (97) on it. The rotating plate (91) has an inclined plane (94). The eccentric column (97) pushes the inclined plane (94) to make the rotating plate (91) swing downward. The separation of the eccentric column (97) from the inclined plane (94) causes the reset torsion spring (93) to drive the rotating plate (91) to reset.

13. The electric bubble machine according to claim 12, characterized in that, The transmission mechanism includes a gear c connected to the liquid delivery mechanism (6), the gear c meshing with gear d, the gear d meshing with gear e, the gear e meshing with gear f, and the gear f being fixedly provided with a transmission shaft (95), with turntables (96) connected to both ends of the transmission shaft (95).

14. The electric bubble machine according to claim 13, characterized in that, The front bubble ring (71) of the front bubble member (7) is connected to guide posts (73) on both sides, and there is a gap between the guide posts (73) and the front bubble ring (71).

15. The electric bubble machine according to claim 14, characterized in that, The two ends of the swing scraper (92) form guide grooves (98) that surround the outside of the guide post (73) and are in clearance fit with the guide post (73).

16. The electric bubble machine according to claim 15, characterized in that, The front end of the housing has a cover, and the cover has a groove that cooperates with the rotating plate (91). A buffer pad (51) is provided above the groove, and a collection port for collecting bubble liquid is provided below the cover.

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