Electric Bubble Brush
Patent Information
- Application Number
- CN202522234995.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-10-22
Smart Images

Figure CN224698824U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bottle brush technology, and in particular to an electric bubble brush. Background Technology
[0002] In daily life, we often need to thoroughly clean containers such as baby bottles and water cups. Traditional cleaning methods require the use of manual bottle brushes, where the operator must continuously and forcefully rotate the brush handle to ensure the bristles fully contact and clean the inner walls of the container. Meanwhile, the use of cleaning agents also presents problems: only through continuous manual rotation of the bottle brush can the cleaning agent fully mix with water to produce foam, which can then be evenly distributed on the inner walls of the items to be cleaned. This cleaning method, entirely reliant on manual operation, has significant drawbacks: firstly, the continuous hand rotation quickly depletes the operator's physical strength, leading to a significant increase in labor intensity; secondly, because the cleaning effect depends entirely on the force and duration of manual operation, it often takes a considerable amount of time to achieve the desired cleaning result. This inefficient cleaning method not only increases the user's burden but also greatly reduces the overall cleaning efficiency, especially when frequently cleaning large quantities of containers. Utility Model Content
[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes an electric bubble brush, including a brush head, a handle, a foam generating assembly, and a rotary drive component. The brush head has a bristle assembly on its exterior and a channel and a lower chamber inside. An outlet hole is opened on the side wall of the channel, leading to the bristle assembly. The lower chamber is located below the channel and communicates with it. After the brush head is rotated and installed on the top of the handle, the top of the handle closes the bottom opening of the lower chamber. The foam generating assembly is installed inside the handle and delivers foam to the lower chamber through a pipe. The rotary drive component is installed inside the handle and connected to the brush head, driving the brush head to rotate.
[0004] According to some embodiments of this utility model, when the brush head is installed on the top of the handle, a gap will be formed between the brush head and the handle, causing the foam in the lower chamber to overflow from the gap. Therefore, it is necessary to make the top of the handle able to seal the bottom opening of the lower chamber.
[0005] According to some embodiments of this utility model, the handle includes a top seat mounted at the top, and an annular rib is provided on the top surface of the top seat; the bottom end of the brush head is provided with a concave ring. When the brush head is mounted at the top of the handle, the annular rib is inserted into the concave ring. The combination of the annular rib and the concave ring forms a seal on the lower chamber, so that the foam in the lower chamber will not overflow from the gap between the brush head and the handle; and it will not affect the rotation of the brush head at the top of the handle, and will also make the rotation of the brush head at the top of the handle more stable.
[0006] According to some embodiments of this utility model, and to reduce the noise generated when the brush head rotates, a sealing ring is installed on the annular convex rib, and the sealing ring enters the concave ring when the annular convex rib is inserted into the concave ring.
[0007] According to some embodiments of the present invention, a straight connector is provided at the bottom of the top seat. The straight connector is connected to the foam generating component through a pipeline. The upper end of the straight connector is opened on the inner side of the annular rib, so that the cleaning foam is directly transported through the lower chamber and enters the channel from the lower chamber.
[0008] According to some embodiments of the present invention, a through hole is opened at the center of the top seat. The through hole is also located inside the annular rib and is used to pass through the linkage shaft of the rotary drive component. According to some embodiments of this utility model, the channel extends downward to form an insertion tube, which is located in the lower chamber. The bottom of the insertion tube has an insertion port, into which the linkage shaft of the rotary drive component is inserted to connect the rotary drive component with the brush head.
[0009] According to some embodiments of this utility model, in order to ensure the smooth entry of foam into the channel, a side opening is provided on the side wall of the insertion tube so that the foam can enter the channel through the side opening.
[0010] According to some embodiments of the present invention, the handle also includes a housing and an inner support, with a top seat snapped onto the top of the housing; the inner support is installed in the inner cavity of the housing, and a foam generating component and a rotary drive component are fixedly installed on the inner support; a liquid storage chamber is provided at the bottom of the inner support, which is used to store cleaning liquid, and the cleaning liquid is transported through a pipeline between the liquid storage chamber and the foam generating component.
[0011] According to some embodiments of the present invention, the inner support includes a main frame and a cover. A liquid storage cavity is provided at the bottom of the main frame, and the cover is installed at the bottom of the main frame. A liquid filling port is opened on the cover. According to some embodiments of the present invention, the bottom of the outer shell is equipped with a bottom cover, the bottom cover has an installation opening, a rubber plug is installed in the installation opening, and the rubber plug is tightly inserted into the liquid filling port. The rubber plug is provided with a liquid filling connector, the upper and lower ends of the liquid filling connector are open, and a duckbill valve is installed on the liquid filling connector.
[0012] When adding cleaning fluid to the reservoir, insert the injection tool into the filling connector and start pushing in the cleaning fluid. The cleaning fluid enters the reservoir after passing through the duckbill valve. After replenishment is complete, remove the injection tool. The duckbill valve closes and seals under the pressure of no external cleaning fluid, preventing the cleaning fluid inside the reservoir from flowing out through the duckbill valve and forming a seal on the filling connector to prevent the cleaning fluid from flowing out.
[0013] According to some embodiments of the present invention, the foam generating component includes an air pressure pump and a bubble generator. The air pressure pump is provided with an outlet and an inlet. The outlet is connected to the bubble generator through a pipeline, and the bubble generator is connected to a straight connector through a pipeline. The inlet is connected to a storage chamber through a pipeline.
[0014] According to some embodiments of the present invention, in order to form rich foam, air needs to be mixed in. For this purpose, an L-shaped connector is provided at the bottom of the top seat. The L-shaped connector includes a bottom port and a side port. The side port is located on the side of the top seat. After the top seat is installed, there is a gap between the side of the top seat and the inner wall of the shell. This gap allows air to enter the side port.
[0015] Meanwhile, the air pump is also equipped with an air inlet, which is connected to the bottom port through a pipeline, so that the air and cleaning liquid are mixed and sent into the bubble generator to perform foaming work, thereby producing rich foam.
[0016] According to some embodiments of the present invention, the brush head includes a brush rod and a bristle head sleeve. The brush rod has a channel and a lower chamber, and a concave ring is provided at the bottom end of the brush rod. The bristle head sleeve is fitted onto the brush rod and has a bristle assembly. The bristle head sleeve has an outlet hole located at the position of the bristle assembly, and the positions of the outlet hole and the outlet hole are matched so that the foam can flow to the bristle assembly.
[0017] According to some embodiments of this utility model, in order to keep the bristle head cap stable when installed on the brush rod, a fixing groove and an annular groove are provided on the brush rod. The fixing groove is arranged longitudinally, and the annular groove is arranged below the fixing groove.
[0018] Meanwhile, the brush head sleeve is provided with an insertion cavity into which the brush rod is inserted. The inner side wall of the insertion cavity is provided with a fixing protrusion and an annular protrusion. The fixing protrusion is arranged longitudinally and is installed in a fixing groove. The annular protrusion is arranged below the fixing protrusion and is installed in an annular groove, so as to achieve a stable installation of the brush head sleeve.
[0019] This utility model has at least the following beneficial effects: 1. During operation, the rotary drive unit propels the rotating brush head to rotate at a constant speed, ensuring comprehensive and close contact between the brush bristles and the inner surface of the cleaning container. Simultaneously, the foam generating component continuously produces rich and fine cleaning foam. This foam is transported through channels and then flows evenly from the outlet holes, adhering to the high-speed rotating bristles. Under the continuous action of centrifugal force, the cleaning foam is evenly distributed along the inner wall of the container with the rotating bristles, forming a complete foam coating. This dynamic interaction allows the cleaning foam to fully penetrate every nook and cranny of the container's inner wall, working synergistically with the bristles to produce a cleaning effect. This combination of mechanical motion and chemical cleaning significantly improves the stain removal rate and greatly shortens the cleaning time, thus achieving a dual improvement in cleaning effectiveness and efficiency.
[0020] 2. When the brush head is attached to the top of the handle, the annular protrusion is inserted into the concave ring. The combination of the annular protrusion and the concave ring forms a seal on the lower chamber, preventing the foam in the lower chamber from overflowing from the gap between the brush head and the handle. It also does not affect the rotation of the brush head at the top of the handle and makes the rotation of the brush head at the top of the handle more stable.
[0021] 3. When adding cleaning fluid to the reservoir, insert the injection tool into the filling connector and start pushing in the cleaning fluid. The cleaning fluid enters the reservoir after passing through the duckbill valve. After replenishment, remove the injection tool. The duckbill valve closes and seals under the pressure of no external cleaning fluid, preventing the cleaning fluid inside the reservoir from flowing out through the duckbill valve and forming a seal on the filling connector to prevent the cleaning fluid from flowing out.
[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is an overall exploded view of an embodiment of the present utility model; Figure 2 This is a schematic front view of an embodiment of the present utility model; Figure 3 for Figure 2 Schematic diagram of the AA section; Figure 4 for Figure 3 Enlarged diagram of B in the diagram; Figure 5 for Figure 3 Enlarged diagram of C in the middle; Figure 6 for Figure 3 Enlarged diagram of D in the middle; Figure 7 This is a schematic diagram of the brush head cover according to an embodiment of the present utility model; Figure 8 This is a schematic diagram of the brush rod according to an embodiment of the present utility model; Figure 9 This is a schematic diagram of the combined state of the top seat and the rotary drive component according to an embodiment of the present invention. Figure 1 ; Figure 10 This is a schematic diagram of the combined state of the top seat and the rotary drive component according to an embodiment of the present invention. Figure 2 ; Figure 11 This is a bottom view of the top seat and outer shell in an embodiment of the present utility model. Figure 12 for Figure 11 Schematic diagram of the EE cross section; Figure 13 for Figure 12 Enlarged diagram of F in the middle; Figure 14 This is a schematic diagram showing the combined state of the foam generating component, the rotary drive component, and the inner support in an embodiment of this utility model. Figure 15 This is a bottom view of the inner support and outer shell combined in an embodiment of the present utility model; Figure 16 for Figure 15 A schematic diagram of the GG cross-section. Detailed Implementation
[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0025] In the description of this utility model, "more than" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.
[0026] Reference Figures 1 to 3An electric bubble brush includes a brush head 100, a handle 200, a foam generating assembly 300, and a rotary drive 400. The brush head 100 has a bristle assembly 121 on its exterior and a channel 111 and a lower chamber 112 inside. The side wall of the channel 111 has an outlet hole 113 leading to the bristle assembly 121. The lower chamber 112 is located below the channel 111 and communicates with it. After the brush head 100 is rotatably mounted on the top of the handle 200, the top of the handle 200 closes the bottom opening of the lower chamber 112. The foam generating assembly 300 is installed inside the handle 200 and delivers foam to the lower chamber 112 through a pipe. The rotary drive 400 is installed inside the handle 200 and connected to the brush head 100, driving the brush head 100 to rotate.
[0027] During operation, the rotary drive device drives the rotary brush head 100 to rotate at a constant speed, and the bristle assembly 121 of the brush head 100 forms a comprehensive and close contact with the inner wall surface of the cleaning container.
[0028] Meanwhile, the foam generating component 300 continuously produces rich and fine cleaning foam, which is conveyed through channel 111 and then flows out evenly from outlet hole 113, adhering to the high-speed rotating bristle assembly 121. Under the continuous action of centrifugal force, the cleaning foam is evenly distributed along the inner wall of the container with the rotating bristle assembly 121, forming a complete foam coating layer. This dynamic interaction allows the cleaning foam to fully penetrate into every tiny corner and crevic of the container's inner wall, working synergistically with the bristle assembly 121 to produce a cleaning effect. By combining mechanical motion with chemical cleaning, not only is the stain removal rate significantly improved, but the time required for cleaning operations is also greatly shortened, thus achieving a dual improvement in cleaning effect and cleaning efficiency.
[0029] Reference Figure 3 , 6 As shown, when the brush head 100 is installed on the top of the handle 200, a gap 201 is formed between the brush head 100 and the handle 200, causing the foam in the lower chamber 112 to overflow from the gap 201. Therefore, it is necessary to make the top of the handle 200 able to seal the bottom opening of the lower chamber 112.
[0030] Specifically, the handle 200 includes a top seat 210 mounted at the top, with an annular rib 211 on the top surface of the top seat 210; the bottom end of the brush head 100 is provided with a concave ring 116. When the brush head 100 is mounted at the top of the handle 200, the annular rib 211 is inserted into the concave ring 116. The combination of the annular rib 211 and the concave ring 116 forms a seal on the lower chamber 112, so that the foam in the lower chamber 112 will not overflow from the gap 201 between the brush head 100 and the handle 200; and it will not affect the rotation of the brush head 100 at the top of the handle 200, and will also make the rotation of the brush head 100 at the top of the handle 200 more stable.
[0031] To further improve sealing and reduce noise generated when the brush head 100 rotates, a sealing ring 213 is installed on the annular rib 211. When the annular rib 211 is inserted into the concave ring 116, the sealing ring 213 enters the concave ring 116.
[0032] Reference Figure 9 , 10 As shown, in order to deliver the cleaning foam, a straight connector 212 is provided at the bottom of the top seat 210. The straight connector 212 is connected to the foam generating component 300 through a pipeline. The upper end of the straight connector 212 is opened on the inner side of the annular rib 211, so that the cleaning foam is directly delivered into the lower chamber 112 formed by the combination of the annular rib 211 and the concave ring 116, and enters the channel 111 from the lower chamber 112.
[0033] Reference Figure 9 As shown, a through hole 214 is opened at the center of the top seat 210. The through hole 214 is also located inside the annular rib 211. The through hole 214 is used to pass through the linkage shaft of the rotary drive component 400. The channel 111 extends downward to form a cannula 117, which is located in the lower chamber 112. The bottom of the cannula 117 has an insertion port 1171, into which the linkage shaft of the rotary drive 400 is inserted to connect the rotary drive 400 with the brush head 100.
[0034] To ensure smooth entry of foam into channel 111, a side opening 1172 is provided on the side wall of the insertion tube 117, allowing foam to enter channel 111 through the side opening 1172.
[0035] To accommodate the installation of the rotary drive component 400, a boss is provided on the top seat 210. The boss is stepped and the rotary drive component 400 can be installed inside the boss.
[0036] Reference Figure 3 , 14As shown, the handle 200 also includes a housing 220 and an inner support 230. A top seat 210 is snapped onto the top of the housing 220. The inner support 230 is installed inside the inner cavity of the housing 220. A foam generating component 300 and a rotary drive component 400 are fixedly installed on the inner support 230. A liquid storage chamber 233 is provided at the bottom of the inner support 230. The liquid storage chamber 233 is used to store cleaning liquid, which is then transported through a pipeline between the liquid storage chamber 233 and the foam generating component 300.
[0037] Reference Figure 15 , 16 As shown, the inner support 230 includes a main frame 231 and a cover 232. A liquid storage cavity 233 is provided at the bottom of the main frame 231. The cover 232 is installed at the bottom of the main frame 231. A filling port 2321 is opened on the cover 232 and extends into the liquid storage cavity 233. The bottom of the outer casing 220 is equipped with a bottom cover 240, and the bottom cover 240 has an installation port 241. A rubber plug 250 is installed in the installation port 241, and the rubber plug 250 is tightly inserted into the filling port 2321. The rubber plug 250 is equipped with a filling connector 251, which has openings at both the top and bottom. A duckbill valve 260 is installed on the filling connector 251.
[0038] When replenishing the cleaning fluid into the reservoir 233, the injection tool is inserted into the filling connector 251 to begin pushing in the cleaning fluid. The cleaning fluid enters the reservoir 233 after passing through the duckbill valve 260. After replenishment is completed, the injection tool is removed, and the duckbill valve 260 closes and seals under the pressure of no external cleaning fluid, so that the cleaning fluid inside the reservoir 233 cannot flow out through the duckbill valve 260, thus forming a seal on the filling connector 251 and preventing the cleaning fluid from flowing out.
[0039] Reference Figure 14 As shown, the foam generating assembly 300 includes an air pressure pump 310 and a bubble generator 320. The air pressure pump 310 is provided with an outlet 311 and an inlet 312. The outlet 311 is connected to the bubble generator 320 through a pipeline, and the bubble generator 320 is connected to the straight connector 212 through a pipeline. The inlet 312 is connected to the liquid storage chamber 233 through a pipeline.
[0040] When the air pump 310 starts working, it pumps the cleaning liquid in the storage chamber 233 into the bubble generator 320, where foam is formed and sent into the lower chamber 112 through the pipeline via the straight connector 212. Because the foam has a certain pressure, the foam can enter the channel 111 from the lower chamber 112 and flow out to the outside of the brush head 100.
[0041] Reference Figure 12 , 13As shown, in order to form rich foam, air needs to be mixed in. For this purpose, an L-shaped connector 215 is provided at the bottom of the top seat 210. The L-shaped connector 215 includes a bottom port 2151 and a side port 2152. The side port 2152 is located on the side of the top seat 210. After the top seat 210 is installed, there is a gap 201 between the side of the top seat 210 and the inner wall of the outer shell 220. This gap allows air to enter the side port 2152.
[0042] Meanwhile, the air pump 310 is also equipped with an air inlet 313, which is connected to the bottom port 2151 through a pipeline, so that the air and cleaning liquid are mixed and sent into the bubble generator 320 for foaming, thereby producing rich foam.
[0043] Reference Figure 7 , 8 As shown, the brush head 100 includes a brush rod 110 and a bristle head sleeve 120. The brush rod 110 has a channel 111 and a lower chamber 112. The bottom end of the brush rod 110 has a concave ring 116. The bristle head sleeve 120 is fitted onto the brush rod 110. The bristle head sleeve 120 has a bristle assembly 121 and an outlet hole 122. The outlet hole 122 is located at the position of the bristle assembly 121, and the position of the outlet hole 122 matches that of the outlet hole 113, so that the foam can flow to the bristle assembly 121.
[0044] Reference Figure 8 As shown, in order to keep the bristle head cover 120 stable when mounted on the brush rod 110, a fixing groove 114 and an annular groove 115 are provided on the brush rod 110. The fixing groove 114 is arranged longitudinally, and the annular groove 115 is arranged below the fixing groove 114.
[0045] Meanwhile, the brush head cover 120 is provided with an insertion cavity 123, into which the brush rod 110 is inserted. The inner side wall of the insertion cavity 123 is provided with a fixing protrusion 124 and an annular protrusion 125. The fixing protrusion 124 is arranged longitudinally and is installed in the fixing groove 114. The annular protrusion 125 is arranged below the fixing protrusion 124 and is installed in the annular groove 115, thereby achieving a stable installation of the brush head cover 120.
[0046] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one embodiment or example.
[0047] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An electric bubble brush, characterized in that, include: A brush head (100) is provided with a bristle assembly (121) on the outside of the brush head (100). The brush head (100) is provided with a channel (111) and a lower chamber (112) inside. An outlet hole (113) is opened on the side wall of the channel (111) and the outlet hole (113) leads to the bristle assembly (121). The lower chamber (112) is located below the channel (111) and is connected to the channel (111). The handle (200) is rotated to install the brush head (100) at its top, and the top of the handle (200) closes the bottom opening of the lower chamber (112). A foam generating assembly (300) is installed inside the handle (200), and the foam generating assembly (300) delivers foam to the lower chamber (112) through a pipeline; A rotary drive (400) is installed inside the handle (200) and connected to the brush head (100). The rotary drive (400) is used to drive the brush head (100) to rotate.
2. The electric bubble brush according to claim 1, characterized in that, The handle (200) includes a top seat (210) mounted on the top end, and the top surface of the top seat (210) is provided with an annular rib (211). The bottom of the top seat (210) is provided with a straight connector (212), which is connected to the foam generating component (300) through a pipeline. The port at the upper end of the straight connector (212) is opened on the inner side of the annular rib (211). The bottom end of the brush head (100) is provided with a concave ring (116). When the brush head (100) is mounted on the top of the handle (200), the annular rib (211) is inserted into the concave ring (116).
3. The electric bubble brush according to claim 2, characterized in that, A sealing ring (213) is installed on the annular rib (211). When the annular rib (211) is inserted into the concave ring (116), the sealing ring (213) enters the concave ring (116).
4. The electric bubble brush according to claim 2, characterized in that, A through hole (214) is opened at the center of the top seat (210). The through hole (214) is located inside the annular rib (211). The through hole (214) is used to pass through the linkage shaft of the rotary drive (400). The channel (111) extends downward to form an insertion tube (117), which is located in the lower chamber (112). The bottom of the insertion tube (117) has an insertion port (1171), into which the linkage shaft of the rotary drive (400) is inserted. The side wall of the insertion tube (117) has a side opening (1172), through which foam enters the channel (111).
5. The electric bubble brush according to claim 2, characterized in that, The handle (200) also includes a housing (220) and an inner bracket (230), with the top of the housing (220) snapped onto the top seat (210). The inner cavity of the outer shell (220) is fitted with the inner support (230), and the foam generating component (300) and the rotary drive component (400) are fixedly installed on the inner support (230). The bottom of the inner support (230) is provided with a liquid storage chamber (233), and the liquid storage chamber (233) is connected to the foam generating component (300) through a pipeline.
6. The electric bubble brush according to claim 5, characterized in that, The foam generating assembly (300) includes a pressure pump (310) and a bubble generator (320). The pressure pump (310) is provided with a liquid outlet (311) and a liquid inlet (312). The liquid outlet (311) is connected to the bubble generator (320) through a pipeline. The bubble generator (320) is connected to the straight connector (212) through a pipeline. The liquid inlet (312) is connected to the liquid storage chamber (233) through a pipeline.
7. The electric bubble brush according to claim 6, characterized in that, The inner support (230) includes a main frame (231) and a cover (232). The liquid storage cavity (233) is provided at the bottom of the main frame (231). The cover (232) is installed at the bottom of the main frame (231). The cover (232) has a filling port (2321) that extends into the liquid storage cavity (233). The bottom of the outer casing (220) is equipped with a bottom cover (240), and the bottom cover (240) has an installation port (241). The installation port (241) is filled with a rubber plug (250), and the rubber plug (250) is tightly inserted into the filling port (2321). The rubber plug (250) is provided with a filling connector (251), which has openings at both the top and bottom ends. The filling connector (251) is equipped with a duckbill valve (260).
8. The electric bubble brush according to claim 6, characterized in that, The top seat (210) has a gap (201) between its side and the inner wall of the outer shell (220); the bottom of the top seat (210) is provided with an L-shaped connector (215), the L-shaped connector (215) includes a bottom port (2151) and a side port (2152), the side port (2152) being located on the side of the top seat (210); The air pump (310) is also provided with an air inlet (313), which is connected to the bottom port (2151) through a pipeline.
9. The electric bubble brush according to claim 1, characterized in that, The brush head (100) includes a brush handle (110) and a bristle head cover (120). The brush handle (110) is provided with the channel (111) and the lower chamber (112). The bristle head sleeve (120) is fitted onto the brush rod (110). The bristle head sleeve (120) is provided with the bristle assembly (121). The bristle head sleeve (120) is provided with an outlet hole (122). The outlet hole (122) is located at the position of the bristle assembly (121), and the outlet hole (122) is matched with the outlet hole (113).
10. The electric bubble brush according to claim 9, characterized in that, The brush rod (110) is provided with a fixing groove (114) and an annular groove (115). The fixing groove (114) is arranged longitudinally, and the annular groove (115) is arranged below the fixing groove (114). The brush head cover (120) is provided with an insertion cavity (123). The inner sidewall of the insertion cavity (123) is provided with a fixing protrusion (124) and an annular protrusion (125). The fixing protrusion (124) is arranged longitudinally and is inserted into the fixing groove (114). The annular protrusion (125) is arranged below the fixing protrusion (124) and is inserted into the annular groove (115).