Electric cleaning brush head and electric cleaning brush

Abstract

The invention discloses an electric cleaning brush head and an electric cleaning brush, and relates to the technical field of cleaning brush heads, the specific structure of the electric cleaning brush head comprises: a housing, the interior of which is provided with an accommodating cavity; the brush disc assembly is mounted at the end part of the shell; 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 invention further discloses an electric cleaning brush which comprises the brush head of the electric cleaning brush. The technical problem that noise is large when an existing cleaning brush head works is solved.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning tools, in particular to an electric cleaning brush head and an electric cleaning brush. Background Art

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

[0003] Existing cleaning brushes usually need to be pushed manually to clean items, which is troublesome, time-consuming and laborious. Some manufacturers have improved the cleaning brushes according to user needs, that is, they use electric drive, which can improve cleaning efficiency. However, when the electric cleaning brush transmits power, the transmission parts are matched through the transmission shaft and the fork, thereby driving the brush head to rotate and clean, which will cause knocking at the matching point and make a lot of noise. Summary of the invention

[0004] The purpose of the present invention is to provide an electric cleaning brush head and an electric cleaning brush, which solve the technical problem in the prior art that the cleaning brush head produces relatively high noise during operation.

[0005] The present application discloses an electric cleaning brush head, comprising: A housing, wherein a housing cavity is provided inside the housing; A brush plate assembly is mounted on an end of the housing; A transmission shaft assembly is installed in the accommodating cavity, and the transmission shaft assembly and the brush plate assembly are spaced apart; A swinging member is mounted on the end of the transmission shaft assembly, and the swinging member is movably connected to the brush plate assembly; A groove is formed on one side of the brush plate assembly facing the swinging member; The swing member comprises: A rotating block, mounted on the end of the transmission shaft assembly; The mating protrusion has one end disposed at an eccentric position of the rotating block and the outer wall of the other end fitted with the inner wall of the groove.

[0006] The present application designs the swinging member so that the matching protrusion rotates through the driving of the rotating block, pushing the brush plate assembly to swing, thereby completing the cleaning work with low noise.

[0007] Based on the above technical solution, the embodiment of the present application can also be improved as follows: Furthermore, the mating protrusion is truncated cone-shaped, the diameter of the mating protrusion away from the rotating block is r, and the diameter of the mating protrusion close to the rotating block is R, R>r. The beneficial effect of adopting this step is that it can cooperate well with the groove and drive the brush plate assembly to swing.

[0008] Furthermore, the taper of the mating protrusion is α, α≥45°. The beneficial effect of adopting this step is to ensure the stability of the mating protrusion during rotation, so as to achieve better swinging.

[0009] Furthermore, the inner wall of the groove is divided into an inclined section and a vertical section, the inclined section is located at an end of the vertical section away from the bottom of the groove, and the inclined section extends outwardly from the connection between the inclined section and the vertical section; When the swinging member is driven by the transmission assembly to rotate eccentrically, the outer wall of the matching protrusion contacts the vertical section. The beneficial effect of adopting this step is that the swinging member can rotate well by designing the groove, thereby reducing the occurrence of interference.

[0010] Furthermore, a mounting groove is provided at one end of the rotating block away from the swinging member; One end of the transmission shaft assembly is provided with a mounting block that cooperates with the mounting groove, and a pin is passed through the mounting block to realize synchronous movement of the rotating block and the transmission shaft assembly. The beneficial effect of adopting this step is that the mounting groove and the pin can cooperate with each other, so that the rotating block and the transmission shaft assembly can be stably matched.

[0011] Furthermore, the mounting block is flat or the longitudinal section of the mounting block is elliptical.

[0012] Furthermore, the brush plate assembly comprises: A positioning sleeve, wherein the groove is formed at the end of the positioning sleeve, and slots are formed on both sides of the positioning sleeve; A brush plate, wherein two sides of the brush plate are provided with extension bosses, and the extension bosses cooperate with the clamping grooves.

[0013] Furthermore, the positioning sleeve is a plastic part, and the swinging part is a metal part or a plastic part. The beneficial effect of adopting this step is that the noise can be further reduced.

[0014] The present application also discloses an electric cleaning brush, comprising the electric cleaning brush head mentioned above.

[0015] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: 1. The present application is provided with matching protrusions and grooves. During transmission, the matching protrusions move against the grooves to reduce the noise of the cleaning brush head, thereby achieving low-noise and stable operation of the cleaning brush head.

[0016] 2. In the present application, the groove wall of the groove is divided into two sections, which can avoid interference between the raised sections and better ensure the rotation of the mating protrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a brush head of an electric cleaning brush according to a specific embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the internal structure; Figure 3 for Figure 1 A schematic diagram of the structure of the middle positioning sleeve part; Figure 4 for Figure 1 A schematic diagram of the structure of the middle swing part; Figure 5 for Figure 1 The front view of the middle swinging member; Figure 6 for Figure 1 Schematic diagram of the structure of the middle transmission shaft assembly moving to the 12 o'clock direction; Figure 7 for Figure 1 Schematic diagram of the structure of the middle transmission shaft assembly moving to the 9 o'clock direction; Reference numerals: 1-housing; 2-brush plate assembly; 3-transmission shaft assembly; 4-swinging member; 5-groove; 101-accommodating cavity; 201-positioning sleeve; 202-slot; 203-brush plate; 204-extended boss; 401-rotating block; 402-matching protrusion; 403-installation slot; 404-installation block; 405-pin; 501- inclined section; 502- vertical section. DETAILED DESCRIPTION

[0019] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention. It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0020] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Embodiment 1: like Figure 1-5 As shown, an embodiment of the present application discloses an electric cleaning brush head for cleaning and sanitation, wherein a swinging part is arranged inside the electric cleaning brush head, and a rotation of a mating protrusion is utilized to resist against a brush plate assembly and drive the brush plate assembly to move, thereby being able to reduce noise during operation of the brush head and also ensuring the service life of the product.

[0023] like Figure 1 , 2 As shown, the specific structure of this application includes: The housing 1 has an accommodating cavity 101 disposed therein. The housing 1 is an existing housing. Specifically, the head thereof is relatively large in size and is used to install a subsequent brush plate assembly therein. The center thereof is used to install a subsequent transmission shaft assembly connected to a power member, such as a motor. At the same time, in order to ensure the stability of the transmission shaft assembly and other components, a limit plate may be provided, and a corresponding groove is provided on the limit plate to limit the transmission shaft assembly to ensure its stability. The brush plate assembly 2 is installed at the end of the housing 1, one end of which is located outside the housing 1, and the other end extends to the inside of the accommodating cavity 101, that is, a part of the brush plate 203 is located outside the housing, and the remaining parts are located inside the accommodating cavity 101. The brush plate assembly 2 is mainly used by the user to achieve cleaning action, that is, it swings under the drive of the subsequent transmission shaft assembly. Specifically, the swing range of the brush plate assembly 2 is 20-30°; The transmission shaft assembly 3 is installed in the accommodating cavity 101, and the transmission shaft assembly 3 is spaced apart from the brush plate assembly 2. Specifically, the transmission shaft assembly 3 is located in the middle of the accommodating cavity 101, and one end of the transmission shaft assembly 3 is connected to a motor and other components to achieve rotation, that is, swing the subsequent swinging member to move; The swing member 4 is installed at the end of the transmission shaft assembly 3, and the swing member 4 is movably connected to the brush plate assembly 2. The swing member 4 rotates under the drive of the transmission shaft assembly 3, and then drives the brush plate assembly 2 to move, thereby completing the cleaning action.

[0024] However, the existing movable connection method is too noisy, so the present application designs the swing member 4 and the brush plate assembly 2 to reduce the noise, as follows; A groove 5 is formed on one side of the brush plate assembly 2 facing the swinging member 4; like Figure 1 , 4 As shown, the swing member 4 includes: A rotating block 401 is mounted on the end of the transmission shaft assembly 3; The mating protrusion 402 has one end arranged at an eccentric position of the rotating block 401, and the outer wall of the other end is fitted with the inner wall of the groove 5; the swinging member 4 in the present application can be an integrally formed member, or it can be a rotating block 401 and a mating protrusion 402 that are connected and fixed, wherein the rotating block 401 can be cylindrical, and the mating protrusion 402 is in an eccentric position, and the outer wall of the mating protrusion 402 is used to support the inner wall of the groove 5, thereby driving the brush plate assembly 2 to swing and complete the cleaning action.

[0025] Specifically, when the transmission shaft assembly 3 drives the rotating block 401 to rotate, it can drive the matching protrusion 402 to move eccentrically, and the matching protrusion 402 is in contact with the inner wall of the groove 5 during the whole process, thereby resisting the groove 5 and driving the swinging member 4 to swing, which reduces the impact and thus reduces the noise.

[0026] In one embodiment, if Figure 5 As shown, the mating protrusion 402 is truncated cone-shaped, and 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, R>r, that is, the diameter of the end of the mating protrusion 402 close to the groove 5 is small, and the diameter of the end away from the groove 5 is large, which can better drive the brush plate assembly 2 to swing.

[0027] Specifically, the taper of the mating protrusion 402 in the present application is not less than 45°, which facilitates the subsequent design of the inner wall of the groove and reduces the occurrence of interference.

[0028] In another embodiment, in order to achieve stable movement of the brush plate assembly 2 and avoid interference of the swinging member 4 in the groove 5, it is necessary not only to design the shape, taper, etc. of the matching protrusion 402, but also to design the inner wall structure of the groove 5, that is, to design it into a structure that is wide outside and narrow inside. Preferably, the groove 5 can be trumpet-shaped; it can also be the following structure, such as Figure 3 As shown: 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 one end of the vertical section 502 away from the bottom of the groove 5, and the inclined section 501 extends outwardly from the connection between the inclined section 501 and the vertical section 502 to form an eight-shaped shape. When the swinging member 4 rotates eccentrically driven by 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 can be non-parallel. When the mating protrusion 402 is rotating, it avoids the occurrence of interference by means of the inclined section 501.

[0029] In another embodiment, the transmission shaft assembly 3 of the present application may be an existing component, that is, it includes components such as a joint sleeve, a transmission shaft and a transmission sleeve, so as to facilitate stable transmission; the transmission shaft assembly 3 in the present application is connected to the rotating block 401, and the connection method may be a fixed connection, or connected through other components. Preferably, a mounting groove 403 is provided at one end of the rotating block 401 away from the swinging member 4; One end of the transmission shaft assembly 3 is provided with a mounting block 404 that cooperates with the mounting groove 403. The mounting block 404 is penetrated by a pin 405 to realize the synchronous movement of the rotating block 401 and the transmission shaft assembly 3, that is, the mounting block 404 is inserted into the mounting groove 403, and then fixed by a pin or pins penetrating from top to bottom, so that the transmission shaft assembly 3 and the rotating block 401 move synchronously.

[0030] In order to ensure the stable movement of the rotating block 401, the specific shape of the mounting block 404 is designed, and the shape of the mounting groove 403 is consistent with the mounting block 404, and adaptation needs to be completed. Specifically, the mounting block 404 is flat or the longitudinal section of the mounting block 404 is elliptical.

[0031] In another embodiment, the groove 5 in the present application is a waist-shaped groove, a U-shaped groove, or an elliptical groove, which is conducive to the swinging of the entire brush plate assembly 2, and at the same time, the top surface of the protrusion 402 is parallel to the bottom of the groove 5.

[0032] In order to further ensure the stability of movement, the present application also designs corresponding dimensions. Specifically, the distance between the outer end surface of the rotating block 401 and the inner end surface of the swinging member 4 is a, and the width of one end of the swinging member 4 facing the rotating block 401 is b, 8≤b / a≤16.

[0033] In order to better cooperate with the swing member 4, the present application also designs the brush plate assembly 2. Specifically, the brush plate assembly 2 includes: A positioning sleeve 201, wherein the groove 5 is formed at the end of the positioning sleeve 201, and slots 202 are formed on both sides of the positioning sleeve 201; The brush disc 203 has extension bosses 204 on both sides thereof, and the extension bosses 204 cooperate with the slots 202. A through hole is provided in the middle of the positioning sleeve 201 to facilitate the passage of the axis of the brush disc 203. Preferably, a portion of the positioning sleeve 201 away from the swinging member 4 is cylindrical, and the other portion is a conical boss and is provided with the groove 5 to cooperate with the swinging member 4. At the same time, the present application may also provide a gasket on the extension boss 204 to ensure that the extension boss 204 and the slots 202 cooperate with each other.

[0034] In order to further reduce noise, the present application limits the materials, wherein the positioning sleeve 201 is a plastic part, the swinging part 4 is a metal part or a plastic part, and the plastic part in the present application refers to one of polyamide (PA), polycarbonate (PC), polyoxymethylene (POM), acrylonitrile / butadiene / styrene copolymer (ABS) and thermoplastic elastomer, polyimide (PI), polyphenylene sulfide (PPS), polyester (PBT), polyetheretherketone (PEEK) and liquid crystal polymer (LCP).

[0035] The specific working process of this application is as follows: The driving assembly drives the transmission shaft assembly 3 to move. When the transmission shaft assembly 3 rotates, it drives the matching protrusion 402 to rotate. The matching protrusion 402 rotates against the groove 5, that is, the brush plate assembly 2 can swing under the drive of the matching protrusion 402, thereby driving the swing of the brush plate assembly 2 to complete the cleaning work. Specifically, two certain motion states are as follows: Figure 6-7 shown.

[0036] Embodiment 2: Based on Example 1, the present application also discloses an electric cleaning brush, including the aforementioned electric cleaning brush head.

[0037] Noise detection for this application: Place the cleaning brush in the noise box, measure the straight-line distance (horizontally and vertically) between the cleaning brush head and the sound meter, which is 30CM. Turn on the cleaning brush, close the noise box, and record the noise value on the sound meter within 1 minute (record once every 10 seconds). Calculate the average value and finally get only 60-75 dB, which can reduce at least 5-10 decibels.

[0038] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An electric cleaning brush head, characterized in that: include: A housing (1), wherein a receiving cavity (101) is provided inside the housing (1); A brush plate assembly (2) mounted on an end of the housing (1); A transmission shaft assembly (3) is installed in the accommodating cavity (101), and the transmission shaft assembly (3) and the brush plate assembly (2) are arranged at a distance; A swinging member (4) is mounted on the end of the transmission shaft assembly (3), and the swinging member (4) is movably connected to the brush plate assembly (2); A groove (5) is formed on a side of the brush plate assembly (2) facing the swinging member (4); The swinging member (4) comprises: A rotating block (401) mounted on the end of the transmission shaft assembly (3); The mating protrusion (402) has one end disposed at an eccentric position of the rotating block (401) and an outer wall of the other end fitted with an inner wall of the groove (5).

2. The electric cleaning brush head according to claim 1, characterized in that: The matching protrusion (402) is truncated cone-shaped, the diameter of the side of the matching protrusion (402) away from the rotating block (401) is r, and the diameter of the side of the matching protrusion (402) close to the rotating block (401) is R, and R>r.

3. The electric cleaning brush head according to claim 2, characterized in that: The taper of the matching protrusion (402) is α, and α≥45°.

4. The electric cleaning brush head according to claim 1, characterized in that: The inner wall of the groove (5) is divided into an inclined section (501) and a vertical section (502), the inclined section (501) being located at an end of the vertical section (502) away from the bottom of the groove (5), and the inclined section (501) extends outwardly from the connection between the inclined section and the vertical section (502); When the swinging member (4) is driven by the transmission assembly to rotate eccentrically, the outer wall of the matching protrusion (402) contacts the vertical section (502).

5. The electric cleaning brush head according to claim 1, characterized in that: An installation groove (403) is formed at one end of the rotating block (401) away from the swinging member (4); One end of the transmission shaft assembly (3) is provided with a mounting block (404) that cooperates with the mounting groove (403), and a pin (405) is passed through the mounting block (404) to achieve synchronous movement of the rotating block (401) and the transmission shaft assembly (3).

6. The electric cleaning brush head according to claim 5, characterized in that: The mounting block (404) is flat or the longitudinal section of the mounting block (404) is elliptical.

7. The electric cleaning brush head according to claim 1, characterized in that: The groove (5) is a waist-shaped groove or a U-shaped groove.

8. The electric cleaning brush head according to claim 1, characterized in that: The brush plate assembly (2) comprises: A positioning sleeve (201), wherein the groove (5) is formed at the end of the positioning sleeve (201), and clamping grooves (202) are formed on both sides of the positioning sleeve (201); A brush plate (203), wherein two sides of the brush plate (203) are provided with extension bosses (204), and the extension bosses (204) cooperate with the clamping slots (202).

9. The electric cleaning brush head according to claim 8, characterized in that: The positioning sleeve (201) is a plastic part, and the swinging part (4) is a metal part or a plastic part.

10. An electric cleaning brush, characterized in that: It comprises the electric cleaning brush head as described in any one of claims 1-9.

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