Angle-adjustable electric cleaning brush

Abstract

The utility model discloses an angle-adjustable electric cleaning brush. The angle-adjustable electric cleaning brush comprises a telescopic handle, an adjustable brush neck and a rotary brush head, the brush neck is connected to the upper end of the telescopic handle through a hinge assembly so that the brush neck can turn over in a pitching mode relative to the telescopic handle. The rotary brush head comprises a brush disc and bristles, the brush disc comprises a disc top and a disc periphery, the bristles are rooted on the disc top, and the brush disc and the bristles are light-transmitting; a light guide cover ring surrounding the connecting part is arranged on the brush neck, and a light-emitting component is arranged in the light guide cover ring; the light guide cover ring comprises an upper light guide face and a circumferential light guide face which are exposed out of the upper end face of the brush neck, and a light-transmitting gap is formed between the upper light guide face and the bottom of the periphery of the brush disc. Light of the light-emitting assembly radiates from the circumferential light guide face in the radial direction through the light guide cover ring, enters the brush disc through the upper light guide face and then radiates outwards through the disc circumference, the disc top and bristles on the disc top. No matter how the angle of the brush neck is adjusted, illumination can cooperate to effectively cover the cleaning area, and the cleaning effect and the user experience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric cleaning brushes, in particular to an angle-adjustable electric cleaning brush. Background Art

[0002] In the field of cleaning products, especially the design and application of electric cleaning brushes, the adjustability of the working angle and the coordination with lighting are key factors in improving cleaning efficiency and user experience. However, there are very few products in the existing technology that can meet these two requirements simultaneously.

[0003] Patent CN221554920U discloses an electric cleaning brush with a light, including a main unit, a handle, and a brush head. The main unit is equipped with a housing, a control panel, and a drive unit. The drive unit has a drive shaft, and the brush head is mounted on the drive shaft and driven by the drive shaft. The front and rear sides of the housing are respectively provided with a front lighting device and a rear lighting device to illuminate the front and rear of the brush head. This design mainly solves the lighting problem when cleaning in dim environments, but does not mention the adjustability of the working angle. Therefore, it may not meet the requirements for changing the working angle in different cleaning scenarios.

[0004] Patent CN218650758U discloses a multifunctional handheld cleaning brush, including a handle and a transmission case. Through the coordinated use of components such as an electric motor, a one-way screw, a connecting column, a first lighting lamp, and a second lighting lamp, the brush achieves telescopic, illuminated, and easily replaceable brush heads. This design addresses the issues of a single handheld cleaning brush, the difficulty of changing brush heads, and insufficient light for cleaning deep objects. However, it also fails to mention adjustable working angles, and therefore may not achieve a coordinated working angle and lighting effect.

[0005] Although the electric cleaning brushes in the prior art have made some innovations in lighting and brush head replacement, they have obvious deficiencies in the adjustability of the working angle. Specifically, the prior art fails to provide an electric cleaning brush that can adjust the working angle according to cleaning needs, which limits the flexibility of the cleaning brush in different scenarios. In addition, since the working angle is not adjustable, the lighting function of the cleaning brush cannot be coordinated with the working angle, which may result in the lighting failing to effectively cover the cleaning area during cleaning operations at specific angles or specific positions, affecting the cleaning effect and user experience. Therefore, the development of an electric cleaning brush with an adjustable working angle that can cooperate with lighting is of great significance for improving cleaning efficiency and meeting diverse cleaning needs. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide an electric cleaning brush with adjustable angle, in which the lighting system of the electric cleaning brush can illuminate the cleaning area when in use, so that the user can clearly observe the cleaning status of the area being cleaned without the aid of external lighting tools.

[0007] The technical solution adopted by the utility model to solve the above technical problems is: an angle-adjustable electric cleaning brush, comprising a telescopic handle, an adjustable brush neck and a rotatable brush head; the brush neck is connected to the upper end of the telescopic handle through a hinge assembly so that the brush neck can be tilted relative to the telescopic handle;

[0008] The rotating brush head includes a brush disc and bristles, the brush disc includes a disc top and a disc periphery, the bristles are rooted on the disc top, and the brush disc and bristles are both light-transmissive;

[0009] A rotating motor is provided in the brush neck, and the brush plate is connected to the output shaft of the rotating motor via a connecting portion located in the center of the upper end portion of the brush neck;

[0010] A light guide ring is provided on the brush neck surrounding the connecting portion, and a light emitting component is provided in the light guide ring;

[0011] The light guide ring includes an upper light guide surface and a circumferential light guide surface exposed on the upper end surface of the brush neck, and a light-transmitting gap is formed between the upper light guide surface and the bottom of the brush plate;

[0012] The light from the light emitting component radiates radially from the circumferential light guide surface through the light guide ring, enters the brush disc through the upper light guide surface, and then radiates outward from the disc periphery, disc top and brush bristles on the disc top.

[0013] The preferred technical solution adopted by the present invention to solve the above technical problems is: the upper end surface of the brush neck is an annular inclined surface, and the outer diameter of the annular inclined surface gradually increases from top to bottom.

[0014] The preferred technical solution adopted by the present invention to solve the above technical problems is: the circumferential light-guiding surface of the light guide cover ring is a vertical surface, and the light guide cover ring protrudes from the upper part of the annular inclined surface.

[0015] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is: the circumferential light-guiding surface of the light guide ring is a frustum with an outer diameter gradually increasing from top to bottom, the outer diameter of the bottom of the frustum is smaller than the outer diameter of the upper part of the annular inclined surface, and the light guide ring and the upper end face of the brush neck are in a stepped structure.

[0016] The preferred technical solution adopted by the present invention to solve the above technical problems is: the outer diameter of the bottom of the brush disc is consistent with the outer diameter of the upper light guide surface, and the light radiated by the upper light guide surface falls into the enclosed area of ​​the disc.

[0017] The preferred technical solution adopted by the present invention to solve the above technical problems is as follows: the upper end of the telescopic handle has a transfer groove and transfer ears are formed on both sides of the transfer groove; the bottom of the transfer groove is provided with a telescopic lock tongue driven by a control switch;

[0018] The lower end of the brush neck is provided with a transfer portion, which matches the transfer groove and is located between the two transfer ears. The transfer portion has an axial hole, and the rotating shaft passes through the axial hole and rotatably connects the transfer ear and the transfer portion;

[0019] The lower surface of the adapter portion is an arc-shaped surface having a plurality of gear lock holes spaced apart from each other. The telescopic lock tongue cooperates with the gear lock holes to fix the angle of the brush neck after rotation.

[0020] The preferred technical solution adopted by the present invention to solve the above technical problems is as follows: the brush disc includes an annular body coaxially located within the circumference of the disc, the inner periphery of the annular body is provided with a plurality of petal-shaped elastic buckles, the petal-shaped elastic buckles are provided with outward-facing protrusions, and the inner wall of the annular body is provided with a longitudinal groove;

[0021] The connecting portion is fixed to the output shaft and rotates with the output shaft. The connecting portion includes an annular protrusion and a central positioning shaft. The annular protrusion is provided with an outwardly protruding longitudinal ridge and a clamping hole.

[0022] When the brush plate is docked with the brush neck, the annular body and the annular protrusion are sleeved, the longitudinal groove and the longitudinal ridge are engaged, the central positioning shaft is located between multiple petal-shaped elastic buckles and expands and tightens the petal-shaped elastic buckles outward, and the clamping protrusion enters the clamping hole.

[0023] The preferred technical solution adopted by the present invention to solve the above technical problems is: the upper end of the brush neck has an annular groove, an annular substrate is provided in the annular groove, and a plurality of light-emitting elements are evenly distributed on the annular substrate; the light-emitting elements protrude from the annular substrate and are lower than the upper edge of the annular groove.

[0024] The preferred technical solution adopted by the present invention to solve the above technical problems is: an annular protective plate is provided on the annular base plate, and a through hole matching the light-emitting element is provided on the annular protective plate; the annular base plate and the annular protective plate are fixed together in the annular groove by fasteners, and the light-emitting element passes through the through hole.

[0025] The preferred technical solution adopted by the present invention to solve the above technical problems is: the telescopic handle includes a first support rod and a second support rod, the length of the telescopic handle is adjusted by telescoping the first support rod and the second support rod, and a locking component is provided between the first support rod and the second support rod to fix the position of the first support rod and the second support rod after telescoping.

[0026] Compared with the existing technology, the advantages of this utility model are: the light guide ring is not only aesthetically pleasing, but more importantly, the integrated light-emitting component within it can provide sufficient light for cleaning operations. Light passes through the light guide ring's circumferential light-guiding surface and upper light-guiding surface, as well as the light-transmitting gap, achieving multi-angle and wide-range radiation. In particular, the light emitted by the light-emitting component is transmitted through the light guide ring to the brush disc and bristles for further mixing before being radiated outward, directly targeting the cleaning area. Therefore, regardless of the angle of the brush neck, the lighting can cooperate to effectively cover the cleaning area, improving the cleaning effect and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the depicted objects and may contain exaggerated representations. Furthermore, the drawings are not necessarily drawn to scale.

[0028] Figure 1 An electric cleaning brush with adjustable angle Figure 1 ;

[0029] Figure 2 An electric cleaning brush with adjustable angle Figure 2 ;

[0030] Figure 3 A partial diagram of an angle-adjustable electric cleaning brush Figure 1 ;

[0031] Figure 4 This is an exploded view of the hinged portion of the angle-adjustable electric cleaning brush;

[0032] Figure 5 A partial diagram of an angle-adjustable electric cleaning brush Figure 2 ;

[0033] Figure 6 An exploded schematic diagram of the light-emitting position of the electric cleaning brush with adjustable angle;

[0034] Figure 7 Schematic diagram of the connection position of the brush head of the angle-adjustable electric cleaning brush Figure 1 ;

[0035] Figure 8 Schematic diagram of the connection position of the brush head of the angle-adjustable electric cleaning brush Figure 2 . DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0037] It should be noted that like reference numerals denote like items in the following drawings, and therefore, once an item is defined in one drawing, it will not be further defined or explained in the subsequent drawings.

[0038] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "back," "left," "right," "inner," and "outer" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are used solely to facilitate understanding and have no other directional meanings, and should not be construed as limitations on this utility model.

[0039] like Figure 1-4 As shown, this embodiment provides an angle-adjustable electric cleaning brush comprising a telescopic handle 1, an adjustable brush neck 2, and a rotatable brush head 3. The brush neck 2 is connected to the upper end of the telescopic handle 1 via a hinge assembly, allowing the brush neck 2 to tilt relative to the telescopic handle 1. The rotatable brush head 3 comprises a brush disc 31 and bristles 32. The brush disc 31 comprises a top 311 and a periphery 312. The bristles 32 are rooted in the top 311. Both the brush disc 31 and the bristles 32 are light-transmissive.

[0040] like Figure 3-6 As shown in Figures 1 and 8, a rotating motor is provided in the brush neck 2, and the brush disc 31 is connected to the output shaft of the rotating motor via a connecting portion 21 located in the center of the upper end of the brush neck 2. A light guide ring 6 is provided on the brush neck 2, surrounding the connecting portion 21, and a light emitting component 4 is provided in the light guide ring 6. The light guide ring 6 includes an upper light guide surface 61 and a circumferential light guide surface 62 exposed at the upper end surface of the brush neck 2. A light-transmitting gap W is defined between the upper light guide surface 61 and the bottom of the disc circumference 312 of the brush disc 31. Light from the light emitting component 4 is radially radiated from the circumferential light guide surface 62 through the light guide ring 6, enters the brush disc 31 through the upper light guide surface 61, and is then radiated outward from the disc circumference 312, the disc top 311, and the bristles 32 on the disc top 311.

[0041] The telescopic handle 1 allows the user to adjust the length of the handle according to the height of the user or the height of the cleaning space, reducing the discomfort of bending or stretching. The adjustable brush neck 2 is connected to the telescopic handle 1 through a hinged assembly, allowing the brush neck 2 to pitch and roll. This design allows the user to flexibly adjust the position of the brush head according to the angle of the cleaning surface (such as corners, furniture bottoms, and other hard-to-reach areas), ensuring that there are no dead angles in cleaning. The brush head is designed to rotate, and the brush disc 31 is driven to rotate by a rotating motor, enhancing the cleaning strength and efficiency, especially for removing stubborn stains or deep-seated dust on carpets. The light-transmitting design of the brush disc 31 and the bristles 32 allows light to penetrate and illuminate the cleaning area, further improving the visibility and accuracy of cleaning.

[0042] The light guide cover ring 6 not only has an aesthetic appearance, but more importantly, the light-emitting assembly 4 integrated inside can provide sufficient light source for cleaning operations. Light is radiated through the circumferential light guide surface 62 and the upper light guide surface 61 of the light guide cover ring 6, as well as the light-transmitting gap, achieving multi-angle and wide-range radiation. In particular, the light emitted by the light-emitting assembly 4 is transmitted to the brush disc 31 and the bristles 32 through the light guide cover ring 6 for further light mixing and then radiated outward, so that the light directly targets the cleaning action end. Therefore, regardless of the angle of the brush neck 2, the light can effectively cover the cleaning area in coordination, improving the cleaning effect and user experience.

[0043] As shown in Figure 3-4 The upper end surface of the brush neck 2 is a ring-shaped inclined surface a, and the outer diameter gradually increases from top to bottom. This avoids interference with the radiation of light from the light guide cover ring 6, increasing the scattering area of the light. In this embodiment, the circumferential light guide surface 62 of the light guide cover ring 6 is a frustum surface with an outer diameter that gradually increases from top to bottom, and the outer diameter of the bottom of the frustum surface is smaller than the outer diameter of the upper part of the ring-shaped inclined surface a. The light guide cover ring 6 and the upper end surface of the brush neck 2 form a stepped structure. The outer diameter of the disc circumference 312 of the brush disc 31 is consistent with the outer diameter of the upper light guide surface 61, and the light radiated by the upper light guide surface 61 falls into the enclosed area of the disc circumference 312. The stepped structure formed by the light guide cover ring 6 and the brush neck 2 and the tapered circumferential light guide surface 62 optimize the guidance and distribution of light, enhancing the directivity of light and increasing the radiation angle and scattering area of light. The outer diameter of the upper light guide surface 61 is consistent with the outer diameter of the bottom of the disc circumference 312 of the brush disc 31, ensuring that the light can directly and effectively illuminate the enclosed area of the brush disc 31, avoiding waste of light and improving the efficiency of lighting. This design also makes the distribution of light on the brush disc 31 and the bristles 32 more uniform, which can further enhance the cleaning effect.

[0044] It should be noted that in other embodiments, the circumferential light guide surface 62 of the light guide cover ring 6 can be a vertical surface, and the light guide cover ring 6 protrudes above the upper part of the ring-shaped inclined surface a.

[0045] As shown in Figure 6As shown, the light-emitting component 4 includes a light-emitting element 41 and a circuit. The upper end of the brush neck 2 has an annular groove b, and an annular substrate 42 is provided in the annular groove b. The annular substrate 42 serves as a carrier of the light-emitting element 41. Its annular layout ensures that the light can be evenly distributed, providing a basis for subsequent scattering and guiding.

[0046] Furthermore, the annular substrate 42 is evenly distributed with a plurality of light-emitting elements 41 in an annular shape, thereby reducing light blind spots and improving cleaning efficiency and accuracy.

[0047] Light-emitting element 41 protrudes from annular base plate 42 and is lower than the upper edge of annular groove b. This design ensures that light-emitting element 41 can emit light normally while preventing direct contact with the external environment, improving safety and durability. Furthermore, the raised design of light-emitting element 41 helps focus and initially guide light.

[0048] like Figure 6 As shown, an annular base plate 42 is provided with an annular protective plate 5, and the annular protective plate 5 is provided with a through hole c that matches the light-emitting element 41. The annular base plate 42 and the annular protective plate 5 are fixed together in the annular groove b by fasteners, and the light-emitting element 41 passes through the through hole. The main function of the annular protective plate 5 is to protect the light-emitting element 41 from external impact and pollution. At the same time, the design of the through hole ensures that light can pass through smoothly to achieve the desired lighting effect. The annular base plate 42 and the annular protective plate 5 are fixed together in the annular groove b by fasteners. This structure ensures the stability and reliability of the entire light-emitting component 4. The selection and installation process of fasteners are crucial to maintaining the long-term stable operation of the light-emitting component 4.

[0049] like Figure 7 As shown, the brush disc 31 includes an annular body e coaxially located within the disc circumference 312, and the inner periphery of the annular body e is provided with a plurality of petal-shaped elastic buckles f, the petal-shaped elastic buckles f are provided with outward-facing protrusions g, and the inner wall of the annular body e is provided with a longitudinal groove h.

[0050] like Figure 8 As shown, the connecting portion 21 is fixed on the output shaft and rotates with the output shaft. The connecting portion 21 includes an annular protrusion j and a central positioning axis k. The annular protrusion j is provided with an outwardly protruding longitudinal ridge n and a clamping hole m.

[0051] When the brush disc 31 is docked with the brush neck 2, the annular body e and the annular protrusion j are sleeved, the longitudinal groove h and the longitudinal ridge n are engaged, the central positioning axis k is located between the multiple petal-shaped elastic buckles f and expands and tightens the petal-shaped elastic buckles f outward, and the locking protrusion g enters the locking hole m.

[0052] It should be noted that the longitudinal groove h matches the longitudinal ridge n of the connecting portion 21, making docking of the brush disc 31 and the connecting portion 21 easier and more convenient. During initial docking, the user simply slips the annular body e over the annular protrusion j and gently rotates it, aligning the longitudinal groove h with the longitudinal ridge n. During further insertion, the two serve as a guide, ensuring proper docking of the brush disc 31 and the connecting portion 21. Furthermore, the matching longitudinal groove h and longitudinal ridge n also limit relative rotation between the two, preventing the brush head, which should rotate synchronously with the motor output shaft, from shaking as the connecting portion 21 rotates, thereby improving the brush head's stability and safety.

[0053] In addition to the coordination between the longitudinal grooves h and the longitudinal ridges n, the central positioning shaft k acts on the petal-shaped elastic snaps f to radially tighten the connection structure, while the snap connection between the snap holes m and the snap projections g achieves triple fastening. This ensures the stability of the brush disc 31 during rotation, prevents it from falling off when subjected to force, and improves the overall reliability of the cleaning brush.

[0054] like Figure 4 As shown, the specific configuration of the hinge assembly is as follows: the upper end of the telescopic handle 1 has a transfer groove 11 and transfer ears 111 formed on both sides of the transfer groove 11. The transfer groove 11 and the transfer ears 111 not only provide a stable mounting point for the brush neck 2, but also ensure flexible rotation between the two.

[0055] The lower end of the brush neck 2 is provided with an adapter part 22, which matches the adapter groove 11 of the telescopic handle 1 and is located between the two adapter ears 111. An axial hole L is designed on the adapter part 22, and the rotating shaft 7 passes through the axial hole to realize the rotational connection between the adapter ear 111 and the adapter part 22, ensuring that the brush neck 2 can rotate freely within a certain range. The bottom of the adapter groove 11 is provided with a telescopic lock tongue d driven by the control switch. The lower surface of the adapter part 22 is an arc-shaped surface t, and the arc-shaped surface t has a plurality of gear lock holes s spaced apart from each other. The telescopic lock tongue d cooperates with the gear lock hole s to fix the angle of the brush neck 2 after rotation. By controlling the switch P to drive the extension and retraction of the telescopic lock tongue d, precise control of the angle of the brush neck 2 is achieved, allowing users to adjust the angle of the brush neck 2 according to personal preferences and cleaning needs, further improving the user experience.

[0056] like Figure 1 As shown, the telescopic handle 1 includes a first support rod 101 and a second support rod 102. The length of the telescopic handle 1 is adjusted by telescoping the first support rod and the second support rod. A locking component 103 is provided between the first support rod and the second support rod to fix the position of the first support rod and the second support rod after telescoping.

[0057] The utility model discloses an angle adjustable electric cleaning brush is introduced, the principle and implementation mode of the utility model have been set forth in the specific example in this paper, the above embodiment is only used for helping understanding the utility model and core thought. It should be pointed out that for ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, still can make a number of improvement and modification to the utility model, and these improvements and modifications also fall into the protection scope of the utility model claim.

Claims

1. Angle-adjustable electric cleaning brush, characterized by: It includes a telescopic handle, an adjustable brush neck and a rotatable brush head; the brush neck is connected to the upper end of the telescopic handle through a hinge assembly so that the brush neck can be tilted relative to the telescopic handle; The rotating brush head includes a brush disc and bristles, the brush disc includes a disc top and a disc periphery, the bristles are rooted on the disc top, and the brush disc and bristles are both light-transmissive; A rotating motor is provided in the brush neck, and the brush plate is connected to the output shaft of the rotating motor via a connecting portion located in the center of the upper end portion of the brush neck; A light guide ring is provided on the brush neck surrounding the connecting portion, and a light emitting component is provided in the light guide ring; The light guide ring includes an upper light guide surface and a circumferential light guide surface exposed on the upper end surface of the brush neck, and a light-transmitting gap is formed between the upper light guide surface and the bottom of the brush plate; The light from the light emitting component radiates radially from the circumferential light guide surface through the light guide ring, enters the brush disc through the upper light guide surface, and then radiates outward from the disc periphery, disc top and brush bristles on the disc top.

2. The angle-adjustable electric cleaning brush according to claim 1, characterized in that: The upper end surface of the brush neck is an annular inclined surface, and the outer diameter of the annular inclined surface gradually increases from top to bottom.

3. The angle-adjustable electric cleaning brush according to claim 2, characterized in that: The circumferential light-guiding surface of the light-guide cover ring is a vertical surface, and the light-guide cover ring protrudes from the upper portion of the annular inclined surface.

4. The angle-adjustable electric cleaning brush according to claim 2, characterized in that: The circumferential light-guiding surface of the light guide ring is a frustum with an outer diameter gradually increasing from top to bottom. The outer diameter of the bottom of the frustum is smaller than the outer diameter of the upper part of the annular inclined surface. The light guide ring and the upper end surface of the brush neck are in a stepped structure.

5. The angle-adjustable electric cleaning brush according to claim 1, characterized in that: The outer diameter of the bottom of the brush plate is consistent with the outer diameter of the upper light-guiding surface, and the light radiated by the upper light-guiding surface falls into the enclosed area of ​​the brush plate.

6. The angle-adjustable electric cleaning brush according to claim 1, characterized in that: The upper end of the telescopic handle has a transfer groove and transfer ears are formed on both sides of the transfer groove; the bottom of the transfer groove is provided with a telescopic lock tongue driven by a control switch; The lower end of the brush neck is provided with a transfer portion, which matches the transfer groove and is located between the two transfer ears. The transfer portion has an axial hole, and the rotating shaft passes through the axial hole and rotatably connects the transfer ear and the transfer portion; The lower surface of the adapter portion is an arc-shaped surface having a plurality of gear lock holes spaced apart from each other. The telescopic lock tongue cooperates with the gear lock holes to fix the angle of the brush neck after rotation.

7. The angle-adjustable electric cleaning brush according to claim 1, characterized in that: The brush plate comprises an annular body coaxially located within the circumference of the plate, the inner periphery of the annular body is provided with a plurality of petal-shaped elastic buckles, the petal-shaped elastic buckles are provided with outward-facing protrusions, and the inner wall of the annular body is provided with a longitudinal groove; The connecting portion is fixed to the output shaft and rotates with the output shaft. The connecting portion includes an annular protrusion and a central positioning shaft. The annular protrusion is provided with an outwardly protruding longitudinal ridge and a clamping hole. When the brush plate is docked with the brush neck, the annular body and the annular protrusion are sleeved, the longitudinal groove and the longitudinal ridge are engaged, the central positioning shaft is located between multiple petal-shaped elastic buckles and expands and tightens the petal-shaped elastic buckles outward, and the clamping protrusion enters the clamping hole.

8. The angle-adjustable electric cleaning brush according to claim 1, characterized in that: The upper end of the brush neck has an annular groove, in which an annular base plate is provided, and a plurality of light-emitting elements are evenly distributed in an annular shape on the annular base plate; the light-emitting elements protrude from the annular base plate and are lower than the upper edge of the annular groove.

9. The angle-adjustable electric cleaning brush according to claim 8, characterized in that: An annular protective plate is provided on the annular base plate, and a through hole matching the light emitting element is provided on the annular protective plate; the annular base plate and the annular protective plate are fixed together in the annular groove by fasteners, and the light emitting element passes through the through hole.

10. The angle-adjustable electric cleaning brush according to claim 1, characterized in that: The telescopic handle includes a first support rod and a second support rod. The length of the telescopic handle is adjusted by telescoping the first support rod and the second support rod. A locking component is provided between the first support rod and the second support rod to fix the positions of the first support rod and the second support rod after telescoping.

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