Brush disc assembly, electric cleaning brush head and electric cleaning brush

Abstract

The utility model discloses a brush disc assembly, an electric cleaning brush head and an electric cleaning brush, and relates to the technical field of cleaning brush heads, the brush disc assembly comprises a brush disc, a brush disc shaft and a positioning sleeve; the specific structure of the brush head of the electric cleaning brush comprises a shell, wherein an accommodating cavity is formed in the shell; the brush disc assembly is mounted in the accommodating cavity; the transmission shaft assembly is installed in the containing cavity, and the transmission shaft assembly and the brush disc assembly are arranged in a spaced mode; the swinging part is mounted at the end part of the transmission shaft assembly, and the swinging part is movably connected with the brush disc assembly; a groove is formed in the side, facing the swing piece, of the brush disc assembly. The swing piece comprises a rotating block installed at the end of the transmission shaft assembly. One end of the matching protrusion is arranged at the eccentric position of the rotating block, and the outer wall of the other end of the matching protrusion is attached to the inner wall of the groove. The utility model further discloses an electric cleaning brush which comprises the brush head of the electric cleaning brush. The cleaning brush head solves the technical problem that noise is large when an existing cleaning brush head works.

Description

Technical Field

[0001] This utility model relates to the field of cleaning tool technology, and in particular to a brush plate assembly, an electric cleaning brush head, and an electric cleaning brush. Background Technology

[0002] Cleaning brushes have a good cleaning effect and are frequently used in daily life for cleaning kitchens, bathrooms, toilets, cars, etc.

[0003] Existing cleaning brushes typically require manual pushing to clean items, which is cumbersome, time-consuming, and labor-intensive. Some manufacturers have improved cleaning brushes based on user needs by using electric drive, which increases cleaning efficiency. However, in electric cleaning brushes, the transmission mechanism uses a drive shaft and a shift fork to rotate the brush head for cleaning. This can create knocking noise at the connection points. Utility Model Content

[0004] The purpose of this invention is to provide a brush assembly, an electric cleaning brush head, and an electric cleaning brush, which solves the technical problem of excessive noise in the operation of existing cleaning brush heads.

[0005] This application discloses a disk flushing component, including:

[0006] A brush plate, wherein an extended protrusion is provided on the brush plate;

[0007] A brush shaft is installed in the middle of the brush disk;

[0008] A positioning sleeve is fitted onto the brush disc shaft, and the positioning sleeve has a slot that mates with the extension boss.

[0009] The positioning sleeve is a one-piece molded part, and the positioning sleeve includes:

[0010] A sleeve section is fitted onto the brush disc shaft;

[0011] A tapered boss section is provided on the outer side of the sleeve section, and a groove is provided on the side of the tapered boss section away from the sleeve section.

[0012] This application designs a brush assembly, specifically a positioning sleeve, to facilitate subsequent cooperation with transmission components and achieve rotation.

[0013] This application also discloses an electric cleaning brush head, comprising:

[0014] A housing, wherein an accommodating cavity is provided inside the housing;

[0015] The brush assembly is installed within the accommodating cavity;

[0016] A drive shaft assembly is installed at one end of the housing, and the drive shaft assembly is spaced apart from the brush assembly;

[0017] A swinging component is installed at the end of the drive shaft assembly, and the swinging component is movably connected to the brush assembly;

[0018] The brush assembly has a groove on the side facing the oscillating member;

[0019] The swing element includes:

[0020] A rotating block is installed at the end of the drive shaft assembly;

[0021] The protrusion is positioned at an off-center position on the rotating block, and the outer wall of the other end fits against the inner wall of the groove.

[0022] This application designs a swinging component that, driven by a rotating block, causes a cooperating protrusion to rotate, pushing the brush assembly to swing, thus completing the cleaning work with low noise.

[0023] Based on the above technical solution, the embodiments of this application can be further improved as follows:

[0024] Furthermore, the mating protrusion is frustum-shaped, with a diameter of r on the side of the mating protrusion away from the rotating block and a diameter of R on the side of the mating protrusion closer to the rotating block, where R > r. The beneficial effect of this step is that it can fit well with the groove and drive the brush assembly to swing.

[0025] Furthermore, the taper of the mating protrusion is α, where α ≥ 45°. The beneficial effect of this step is to ensure the stability of the mating protrusion during rotation, thereby enabling better oscillation.

[0026] Furthermore, the inner wall of the groove is divided into an inclined section and a vertical section. The inclined section is located at the end of the vertical section away from the bottom of the groove, and the inclined section extends outward at an angle from its connection with the vertical section.

[0027] When the swinging member rotates eccentrically under the drive of the transmission shaft assembly, the outer wall of the mating protrusion contacts the vertical section. The beneficial effect of this step is that by designing the groove, the swinging member can rotate well and reduce the occurrence of interference.

[0028] Furthermore, a mounting groove is provided at the end of the rotating block away from the swinging member;

[0029] One end of the drive shaft assembly is provided with a mounting block that mates with the mounting groove. A pin is passed through the mounting block to enable the rotating block to move synchronously with the drive shaft assembly. The advantage of this step is that the mounting groove and the pin can cooperate with each other to achieve a stable engagement between the rotating block and the drive shaft assembly.

[0030] Furthermore, the mounting block is flat or the longitudinal section of the mounting block is elliptical.

[0031] Furthermore, the positioning sleeve is made of plastic, and the swinging component is made of metal or plastic. The beneficial effect of this step is that it can further reduce noise.

[0032] This application also discloses an electric cleaning brush, including the aforementioned electric cleaning brush head.

[0033] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0034] 1. This application is provided with a mating protrusion and a groove. During transmission, the mating protrusion abuts against the groove, which can reduce the noise of the cleaning brush head, thereby achieving stable low-noise operation of the cleaning brush head.

[0035] 2. In this application, the groove wall is divided into two sections, which can avoid interference between the protruding sections and better ensure the rotation of the mating protrusion. Attached Figure Description

[0036] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of a brush assembly according to specific embodiment 1 of this utility model.

[0038] Figure 2 This is a schematic diagram of the structure of an electric cleaning brush head according to a specific embodiment of the present utility model;

[0039] Figure 3 for Figure 2 Internal structure diagram;

[0040] Figure 4 for Figure 2 A schematic diagram of the middle positioning sleeve section;

[0041] Figure 5 for Figure 2 Schematic diagram of the structure of the swing component;

[0042] Figure 6 for Figure 2 Front view of the swinging component;

[0043] Figure label:

[0044] 1-Housing; 2-Brush plate assembly; 3-Drive shaft assembly; 4-Oscillating component; 5-Groove;

[0045] 101 - Accommodating cavity;

[0046] 201-Positioning sleeve; 202-Slot; 203-Brush disc; 204-Extension boss; 205-Brush disc shaft; 206-Sleeve section; 207-Conical boss section;

[0047] 401 - Rotating block; 402 - Mating protrusion; 403 - Mounting groove; 404 - Mounting block; 405 - Pin;

[0048] 501 - Inclined section; 502 - Vertical section. Detailed Implementation

[0049] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0050] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0051] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0053] Example 1:

[0054] like Figure 1 As shown, this application discloses a disk flushing component, including:

[0055] Brush disk 203, wherein an extension boss 204 is provided on the brush disk 203;

[0056] The brush shaft 205 is installed in the middle of the brush 203;

[0057] The positioning sleeve 201 is sleeved on the brush shaft 205, and the positioning sleeve 201 has a slot 202 that cooperates with the extension boss 204.

[0058] The positioning sleeve 201 is an integrally molded part, and the positioning sleeve 201 includes:

[0059] Sleeve section 206 is sleeved on the brush shaft 205;

[0060] A tapered boss section 207 is disposed on the outside of the sleeve section 206, and a groove 5 is provided on the side of the tapered boss section 207 away from the sleeve section 206.

[0061] This application designs a brush assembly, specifically a positioning sleeve, to facilitate subsequent cooperation with transmission components and achieve rotation.

[0062] Additionally, this application may provide a gasket on the extension boss 204 to ensure that the extension boss 204 and the slot 202 cooperate.

[0063] Example 2:

[0064] like Figure 2-6 As shown in the figure, this application discloses an electric cleaning brush head for cleaning and hygiene purposes. It has an internal swinging component that uses the rotation of a cooperating protrusion to abut against the brush plate assembly and drive the brush plate assembly to move, thereby reducing the noise of the brush head during operation and ensuring the product's service life.

[0065] like Figure 1 , 2 As shown, the specific structure of this application includes:

[0066] The housing 1 has an internal cavity 101. The housing 1 is an existing housing. Specifically, it has a large head size and is used to install the subsequent brush plate assembly. The middle part is used to install the subsequent drive shaft assembly, which is connected to the power component, such as an electric motor. At the same time, in order to ensure the stability of the drive shaft assembly and other components, a limit plate can also be provided. The limit plate has corresponding grooves to restrict the drive shaft assembly and ensure its stability.

[0067] In Embodiment 1, the brush assembly 2 is installed on the housing 1, with one end located outside the housing 1 and the other end extending into the accommodating cavity 101. That is, the brush 203 is located outside the housing, and the remaining components are located inside the accommodating cavity 101. The brush assembly 2 is mainly used by the user to perform cleaning actions, that is, to swing under the drive of the subsequent drive shaft assembly. Specifically, the swing range of the brush assembly 2 is 20-30°.

[0068] The drive shaft assembly 3 is installed in the accommodating cavity 101, and the drive shaft assembly 3 is spaced apart from the brush assembly 2. Specifically, the drive shaft assembly 3 is located in the middle of the accommodating cavity 101, and one end of it is connected to components such as a motor to achieve rotation, that is, to swing the subsequent swinging component to move.

[0069] The swinging component 4 is installed at the end of the transmission shaft assembly 3 and is movably connected to the brush assembly 2. The swinging component 4 rotates under the drive of the transmission shaft assembly 3, and then drives the brush assembly 2 to move, thereby completing the cleaning action.

[0070] However, the existing active connection method is too noisy. Therefore, this application designs the swinging component 4 and the brush assembly 2 to reduce noise, as follows;

[0071] The brush assembly 2 has a groove 5 on the side facing the swing member 4;

[0072] like Figure 2 , 5 As shown, the swing member 4 includes:

[0073] Rotating block 401 is installed at the end of the drive shaft assembly 3;

[0074] The protrusion 402 is positioned at an off-center position on the rotating block 401, and the outer wall of the other end is in contact with the inner wall of the groove 5. The swinging component 4 in this application can be a one-piece molded part, or it can be two parts, the rotating block 401 and the protrusion 402, connected and fixed together. The rotating block 401 can be cylindrical, and the protrusion 402 is positioned off-center. The outer wall of the protrusion 402 presses against the inner wall of the groove 5, thereby driving the brush assembly 2 to swing and complete the cleaning action.

[0075] Specifically, when the drive shaft assembly 3 drives the rotating block 401 to rotate, it can drive the mating protrusion 402 to move eccentrically. Throughout the process, the mating protrusion 402 is in contact with the inner wall of the groove 5, thereby resisting the groove 5 and driving the swinging member 4 to swing. This reduces impact and thus reduces noise.

[0076] In one embodiment, such as Figure 6As shown, the mating protrusion 402 is frustum-shaped. The diameter of the side of the mating protrusion 402 away from the rotating block 401 is r, and the diameter of the side of the mating protrusion 402 close to the rotating block 401 is R, where R > r. That is, the diameter of the mating protrusion 402 close to the groove 5 is small, and the diameter of the side away from the groove 5 is large, which can better drive the brush assembly 2 to swing.

[0077] Specifically, the taper of the mating protrusion 402 in this application is not less than 45°, which facilitates the design of the inner wall of the groove and reduces the occurrence of interference.

[0078] In another embodiment, to ensure stable movement of the brush assembly 2 and prevent interference from the oscillating member 4 within the groove 5, it is necessary not only to design the shape and taper of the mating protrusion 402, but also to design the inner wall structure of the groove 5, i.e., to design it as a structure that is wider on the outside and narrower on the inside. Preferably, the groove 5 can be funnel-shaped; or it can have the following structure, such as... Figure 4 As shown:

[0079] The inner wall of the groove 5 is divided into an inclined section 501 and a vertical section 502. The inclined section 501 is located at the end of the vertical section 502 away from the bottom of the groove 5, and the inclined section 501 extends outward from its connection with the vertical section 502 in a figure-eight shape.

[0080] When the swing member 4 rotates eccentrically under the drive of the transmission shaft assembly 3, the outer wall of the mating protrusion 402 contacts the vertical section 502; the inclination angle of the inclined section 501 is parallel to the taper of the mating protrusion, or it may not be parallel. During the rotation process, the mating protrusion 402 avoids interference by passing through the inclined section 501.

[0081] In another embodiment, the drive shaft assembly 3 of this application can be an existing component, including a connector sleeve, a drive shaft and a drive shaft sleeve, etc., to facilitate stable transmission; the drive shaft assembly 3 and the rotating block 401 in this application are connected, and the connection method can be a fixed connection or a connection through other components. Preferably, the rotating block 401 has an installation groove 403 at the end away from the swing member 4.

[0082] One end of the drive shaft assembly 3 is provided with a mounting block 404 that cooperates with the mounting groove 403. A pin 405 is provided on the mounting block 404 to realize the synchronous movement of the rotating block 401 and the drive shaft assembly 3. That is, the mounting block 404 is inserted into the mounting groove 403 and then fixed by pins or pins that are provided through it from the top and bottom, so that the drive shaft assembly 3 and the rotating block 401 move synchronously.

[0083] To ensure the stable movement of the rotating block 401, the specific shape of the mounting block 404 is designed. The shape of the mounting groove 403 is consistent with that of the mounting block 404, and they need to be adapted. Specifically, the mounting block 404 is flat or the longitudinal section of the mounting block 404 is elliptical.

[0084] In another embodiment, the groove 5 described in this application is a waist-shaped groove, a U-shaped groove, or an elliptical groove, which is beneficial for the entire brush assembly 2 to swing, while the top surface of the protrusion 402 is parallel to the bottom of the groove 5.

[0085] To further ensure the stability of the motion, this application also designs the corresponding dimensions. Specifically, the distance between the outer end face of the rotating block 401 and the inner end face of the swing member 4 is a, and the width of the end of the swing member 4 facing the rotating block 401 is b, where 8≤b / a≤16.

[0086] To further reduce noise, this application specifies the materials, wherein the positioning sleeve 201 is a plastic part, and the swinging part 4 is a metal part or a plastic part. The plastic part in this application refers to one of the following: polyamide (PA), polycarbonate (PC), polyoxymethylene (POM), acrylonitrile / butadiene / styrene copolymer (ABS), thermoplastic elastomer, polyimide (PI), polyphenylene sulfide (PPS), polyester (PBT), polyetheretherketone (PEEK), and liquid crystal polymer (LCP).

[0087] The specific work process for this application is as follows:

[0088] The drive component drives the transmission shaft assembly 3 to move. When the transmission shaft assembly 3 rotates, it drives the mating protrusion 402 to rotate. The mating protrusion 402 abuts against the groove 5 and rotates. That is, the brush assembly 2 can swing under the drive of the mating protrusion 402, thereby driving the brush assembly 2 to swing, thus completing the cleaning work.

[0089] Example 3:

[0090] Based on embodiments 1 and 2, this application also discloses an electric cleaning brush, including the aforementioned electric cleaning brush head.

[0091] Noise testing was conducted on this application:

[0092] Place the cleaning brush in the noise box, measure the straight-line distance (horizontal and vertical) between the cleaning brush head and the sound meter (30 cm), turn on the cleaning brush, turn off the noise box, record the noise value on the sound meter for 1 minute (record once every 10 seconds), calculate the average value, and finally find that it is only 60-75 dB, which can reduce the noise by at least 5-10 dB.

[0093] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0094] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., 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, the 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 one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A disk brush assembly, characterized in that, include: A brush plate, wherein an extended protrusion is provided on the brush plate; A brush shaft is installed in the middle of the brush disk; A positioning sleeve is fitted onto the brush disc shaft, and the positioning sleeve has a slot that mates with the extension boss. The positioning sleeve is a one-piece molded part, and the positioning sleeve includes: A sleeve section is fitted onto the brush disc shaft; A tapered boss section is provided on the outer side of the sleeve section, and a groove is provided on the side of the tapered boss section away from the sleeve section.

2. An electric cleaning brush head, characterized in that, include: A housing, wherein an accommodating cavity is provided inside the housing; The brush assembly of claim 1 is installed at one end of the housing; A drive shaft assembly is installed in the accommodating cavity, and the drive shaft assembly is spaced apart from the brush assembly; A swinging component is installed at the end of the drive shaft assembly, and the swinging component is movably connected to the brush assembly; The swing element includes: A rotating block is installed at the end of the drive shaft assembly; The protrusion is positioned at an off-center position on the rotating block, and the outer wall of the other end fits against the inner wall of the groove.

3. The electric cleaning brush head according to claim 2, characterized in that, The mating protrusion is frustum-shaped, with a diameter r on the side of the mating protrusion furthest from the rotating block and a diameter R on the side of the mating protrusion closest to the rotating block, where R > r.

4. The electric cleaning brush head according to claim 3, characterized in that, The taper of the mating protrusion is α, where α ≥ 45°.

5. The electric cleaning brush head according to claim 2, characterized in that, The inner wall of the groove is divided into an inclined section and a vertical section. The inclined section is located at the end of the vertical section away from the bottom of the groove, and the inclined section extends outward at an angle from its connection with the vertical section. When the swinging member rotates eccentrically under the drive of the transmission shaft assembly, the outer wall of the mating protrusion contacts the vertical section.

6. The electric cleaning brush head according to claim 2, characterized in that, The rotating block has a mounting groove at the end away from the swinging component; One end of the drive shaft assembly is provided with a mounting block that mates with the mounting groove, and a pin is provided on the mounting block to enable the rotating block to move synchronously with the drive shaft assembly.

7. The electric cleaning brush head according to claim 6, characterized in that, The mounting block is flat or has an elliptical longitudinal section.

8. The electric cleaning brush head according to claim 2, characterized in that, The groove is either waist-shaped or U-shaped.

9. The electric cleaning brush head according to claim 2, characterized in that, The positioning sleeve is made of plastic, and the swinging component is made of metal or plastic.

10. An electric cleaning brush, characterized in that, Includes the electric cleaning brush head as described in any one of claims 2-9.

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