A slot brush

Abstract

The application discloses a gap brush, which comprises a main body, a driving assembly, a control assembly and a cleaning brush; the driving assembly comprises a driving base, a driving motor, a first gear, a second gear, a swing rod and a connecting rod; the driving motor is in transmission connection with the first gear; the first gear is in meshing connection with the second gear; the first gear rotates around a first axis line; the second gear rotates around a second axis line which is perpendicular to the first axis line; the first axis line is a central axis line of the main body; one end of the swing rod is rotatably installed on the second gear; the other end of the swing rod is rotatably connected with the connecting rod; one end of the connecting rod, which is away from the swing rod, is connected with the cleaning brush; the cleaning brush reciprocates along the central axis line of the main body under the driving of the driving assembly; the control assembly is in communication connection with the driving assembly and is used for controlling the start-stop and rotating speed of the driving assembly, so as to control the start-stop and reciprocating speed of the cleaning brush.

Description

Technical Field

[0001] This utility model relates to the field of cleaning technology, and in particular to a crevice brush. Background Technology

[0002] Crevice brushes are widely used as cleaning tools for confined spaces or irregular surfaces, and are applied to areas such as door and window tracks, keyboard crevices, and mechanical component interfaces. To improve cleaning efficiency, some crevice brush products integrate electric drive components to drive the brush head in reciprocating motion, thereby achieving mechanized assisted cleaning.

[0003] In existing technologies, reciprocating drive structures mainly employ crank-slider mechanisms, eccentric wheel-linkage mechanisms, or cam mechanisms. While these structures can achieve the reciprocating motion of the brush head to a certain extent, crank-slider or eccentric wheel mechanisms typically consist of multiple rotating and sliding components, making installation and debugging complex and prone to problems such as gap accumulation or transmission instability. Furthermore, these structures occupy significant space while achieving motion conversion, making them unsuitable for installation in small handheld devices or embedded cleaning devices with size constraints. In addition, eccentric rotation or slider impact in the mechanical structure can easily generate significant vibration and noise, affecting the user experience and potentially causing the brush head to become unstable in gaps. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a gap brush that can achieve stable reciprocating drive and occupy little space.

[0005] This utility model provides a crevice tool, including a main body, a drive assembly and a control assembly disposed within the main body, and a cleaning brush capable of reciprocating relative to the main body; the drive assembly includes a drive base, and a drive motor, a first gear, a second gear, a swing rod, and a connecting rod disposed within the drive base; the drive motor is drivenly connected to the first gear, and the first gear is meshed with the second gear; the first gear rotates around a preset first axis, and the second gear rotates around a second axis perpendicular to the first axis, wherein the first axis is the central axis of the main body;

[0006] One end of the swing arm is rotatably mounted on the second gear, and the other end is rotatably connected to the connecting rod. The end of the connecting rod away from the swing arm is connected to the cleaning brush, so that the cleaning brush reciprocates along the central axis of the main body under the drive assembly. The control assembly is communicatively connected to the drive assembly and is used to control the start, stop and speed of the drive assembly, thereby controlling the start, stop and reciprocating speed of the cleaning brush.

[0007] In one embodiment, the drive assembly further includes a limiting sleeve installed at one end of the drive base. The limiting sleeve includes a limiting cavity and a movable cavity arranged sequentially along the first axis. The diameter of the movable cavity is larger than the diameter of the limiting cavity, and it is used to accommodate the swinging motion of the swing rod. The limiting cavity is movably connected to the connecting rod, and it is used to limit the radial displacement of the connecting rod.

[0008] In one embodiment, the drive assembly further includes a rechargeable power supply mounted on the drive base. The drive base has a charging interface at one end away from the limiting sleeve. One end of the rechargeable power supply is electrically connected to the drive motor, and the other end is electrically connected to the charging interface. It is used to supply power to the drive motor when the power is sufficient, and to obtain power from an external power source for charging when the power is insufficient.

[0009] In one embodiment, the main body includes a main housing for accommodating the drive assembly and the control assembly, and a secondary housing mounted on one end of the main housing for fixing the limiting sleeve, wherein a plurality of sealing rings for waterproofing are provided between the secondary housing and the limiting sleeve.

[0010] In one embodiment, the slit brush further includes a sealing plug disposed at the end of the main housing away from the sub-housing, one end of the charging interface extending out of the main housing, and the sealing plug is used to seal the charging interface.

[0011] In one embodiment, the sealing plug comprises a plug body for sealing the charging interface and a pull ring for easy removal.

[0012] In one embodiment, the outer surface of the main body is provided with a button and an indicator light. The button and the indicator light are both electrically connected to the control component. The button is used to control the start and stop of the drive component and its operating speed. The indicator light is used to display the current operating speed and the power status of the rechargeable power supply.

[0013] In one embodiment, the cleaning brush includes a brush handle mounted on the connecting rod and bristles mounted on the brush handle. The brush handle has a bent portion at one end near the connecting portion, and the bent portion bends away from the first axis.

[0014] In one embodiment, the brush handle has a mounting groove for mounting the bristles, and the cleaning brush further includes a fixing member mounted on the side of the brush handle away from the mounting groove, the fixing member being used to fix the bristles in the mounting groove.

[0015] In one embodiment, the bristles are made of nylon or PBT.

[0016] This utility model provides a crevice brush that integrates a drive component and a control component within the main body, and employs a vertically meshing first and second gear transmission structure to achieve stable reciprocating motion of the cleaning brush along the central axis of the main body. Due to the smooth transmission and rapid response of the gear meshing transmission, combined with the rotatable swing rod and connecting rod structure, the cleaning brush's motion trajectory is stable with minimal impact, effectively avoiding the vibration and impact problems common in traditional eccentric wheel or slider mechanisms. Furthermore, the entire drive component is integrated inside the drive base, resulting in a compact structure and small footprint, making it particularly suitable for use in handheld or embedded small cleaning devices, significantly improving space utilization and overall integration. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a slit brush provided in a preferred embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the drive component provided in a preferred embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the main body provided in a preferred embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the cleaning brush provided in a preferred embodiment of the present invention.

[0022] Figure label:

[0023] 1. Main body; 2. Drive assembly; 3. Cleaning brush; 4. Connecting assembly; 5. Fixing bracket; 11. Main housing; 12. Sub-housing; 13. Sealing plug; 14. Button; 21. Drive base; 22. Rechargeable power supply; 23. Drive motor; 24. First gear; 25. Second gear; 26. Swing rod; 27. Limiting sleeve; 28. Connecting rod; 29. ​​Charging interface; 31. Brush handle; 32. Brush bristles; 33. Fixing component. Detailed Implementation

[0024] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0026] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0028] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0029] Please refer to Figures 1 to 2 The present invention provides a crevice brush, which includes a main body 1, a drive component 2 and a control component disposed in the main body 1, and a cleaning brush 3 capable of reciprocating relative to the main body 1.

[0030] The drive assembly 2 includes a drive base 21, and a drive motor 23, a first gear 24, a second gear 25, a swing arm 26, and a connecting rod 28 disposed within the drive base 21. The drive motor 23 is installed within the drive base 21, and its output end is supported by a bearing assembly and fixedly connected to the first gear 24. The first gear 24 meshes with the second gear 25, wherein the first gear 24 rotates around a first axis, and the second gear 25 rotates around a second axis. The first axis is the central axis of the main body 1, and the second axis is perpendicular to the first axis. One end of the swing arm 26 is rotatably mounted at an eccentric position on the second gear 25, and the other end is hinged to the connecting rod 28 via a rotating shaft mechanism. The other end of the connecting rod 28 is connected to the cleaning brush 3.

[0031] During use, the control component activates the drive motor 23, causing the first gear 24 to rotate around the first axis, which in turn drives the second gear 25, which meshes with it, to rotate around the second axis. The rotation of the second gear 25 causes the swing arm 26 to oscillate periodically. The other end of the swing arm 26 pushes the connecting rod 28 to reciprocate axially, thereby driving the cleaning brush 3 to perform cleaning actions along the central axis of the main body 1. As the second gear 25 continues to rotate, the cleaning brush 3 periodically moves away from and towards the interior of the main body 1 along the central axis, achieving a stable and regular reciprocating cleaning action. The control component adjusts the start / stop and speed of the drive motor 23 according to user commands, thereby controlling the start / stop and reciprocating speed of the cleaning brush 3 to adapt to different cleaning needs.

[0032] In this embodiment, the drive assembly 2 further includes a limiting sleeve 27 installed at one end of the drive base 21. The limiting sleeve 27 has a movable cavity and a limiting cavity sequentially arranged inside it along the first axis. The movable cavity is located near the drive assembly 2 and its diameter is larger than the limiting cavity, providing sufficient swing space for the swing rod 26 to prevent structural interference during swing. The connecting rod 28 passes through the limiting cavity and slides within it. The inner wall of the limiting cavity provides radial positioning constraint to the connecting rod 28, preventing lateral displacement of the connecting rod 28 during reciprocating motion and ensuring the stability and straightness of the cleaning brush 3's movement along the axis of the main body 1.

[0033] Furthermore, a rechargeable power supply 22 is installed inside the drive base 21. The rechargeable power supply 22 is a lithium-ion battery pack with high energy density and good cycle performance. A charging interface 29 with a Type-C structure is provided at the end of the drive base 21 away from the limiting sleeve 27 for easy universal charging. One end of the lithium battery pack is electrically connected to the drive motor 23 via a wire, and the other end is electrically connected to the charging interface 29. When the battery is fully charged, the lithium battery pack provides stable power to the drive motor 23, ensuring continuous and uniform reciprocating motion of the cleaning brush 3. When the battery is low, an external power source is connected through the charging interface 29 to charge the lithium battery pack, achieving cyclic power supply.

[0034] like Figure 3 As shown, in this embodiment, the main body 1 includes a main housing 11 for accommodating the drive assembly 2 and the control assembly, and a secondary housing 12 installed at one end of the main housing 11. The main housing 11 has a hollow structure with an internal mounting cavity for mounting the drive motor 23, gear assembly, power module, and control circuit board. The secondary housing 12 is installed at the end of the main housing 11 near the cleaning brush 3 and is connected to the main housing 11 by screws or snap-fit ​​to form a sealed cavity.

[0035] Specifically, the limiting sleeve 27 is fixedly installed inside the sub-shell 12, and multiple sealing rings are provided between the limiting sleeve 27 and the sub-shell 12. The sealing rings are fitted around the outer periphery of the limiting sleeve 27 and embedded in the corresponding sealing grooves on the inner wall of the sub-shell 12. The sealing material is made of flexible silicone or rubber, which has good compression recovery and water resistance. The above structure forms an effective seal for the swing mechanism area, preventing moisture and impurities from seeping into the equipment through the gap between the sub-shell 12 and the limiting sleeve 27, thereby improving the overall protection performance and service life of the machine.

[0036] A sealing plug 13 is provided at the end of the main housing 11 furthest from the secondary housing 12. The sealing plug 13 is press-fitted to the main housing 11 using a sealing ring, providing excellent waterproof performance. The charging interface 29 is installed at the end of the drive base 21 and extends through the outer wall of the main housing 11, with one end protruding from the sealing plug 13 to form an access area. In the non-charging state, the sealing plug 13 can completely seal and cover the interface, preventing water droplets or moisture from entering. The outer surface of the sealing plug 13 has an anti-slip texture for easy disassembly and operation, maintaining ease of use during cleaning or charging.

[0037] It is understandable that the multiple sealing ring structure between the main housing 11, the secondary housing 12, and the limiting sleeve 27, as well as the protective design of the sealing plug 13 at the charging interface 29, achieve a complete waterproof sealing solution for the gap brush in multiple directions and multiple interface positions, thereby ensuring the normal use of the device in humid or slightly splashed water environments.

[0038] Optionally, the sealing plug 13 includes a plug body and a pull ring. The plug body is used to seal the charging interface 29 and is embedded in the charging interface 29 hole at the end of the main housing 11. The outer side of the plug body has a circumferential flange, which forms a press-fit seal with the main housing 11 to prevent moisture intrusion. The pull ring is integrally formed on the outer edge of the plug body and is connected to the plug body through a flexible connecting part. The user can pull the pull ring to remove the plug body from the main housing 11 to open or close the charging interface 29.

[0039] Optionally, the plug body is made of elastic rubber material, which has good sealing and resilience, and can maintain reliable sealing performance during repeated insertion and removal, adapting to the use conditions such as humidity, water droplets or liquid splashes in daily cleaning environments.

[0040] In this embodiment, a button 14 and an indicator light are provided on the outer surface of the main body 1. The button 14 is a multi-function button connected to the control component and used to control the start and stop of the drive component 2 and adjust the running speed. A short press of the button 14 can start or stop the operation, while a long press or continuous click can switch between multiple operating modes to adapt to different cleaning intensities.

[0041] Furthermore, the indicator lights include a speed indicator and a power indicator, both embedded in the surface of the main body 1 and electrically connected to the control component. The speed indicator displays the current operating speed in real time, using different colors or flashing frequencies to indicate different speed levels, such as green for low speed, blue for medium speed, and red for high speed. The power indicator reflects the remaining power of the rechargeable power supply 22; it remains green when fully charged, orange when moderately charged, and turns red and flashes when low to remind the user to charge. The control component automatically controls the indicator light display status based on signal acquisition results, providing clear and intuitive user feedback.

[0042] Optionally, the power indicator light is a three-segment LED strip used to display the remaining power of the rechargeable power supply 22. The LED strip is arranged along the outer surface of the housing, with each segment corresponding to a different power range. For example, all three lights on indicate a power level of approximately 66% or higher, two lights on indicate approximately 33%-66%, and one light on or flashing indicates a power level below approximately 33%, prompting the user to charge in time. During charging, the LED strip can flash sequentially in a running pattern to indicate a gradual increase in power. When a segment representing a power range is fully charged, its corresponding LED segment stops flashing and remains constantly lit until all three segments are lit, providing intuitive and dynamic feedback on the charging process.

[0043] Optionally, the main body 1 is equipped with a buzzer module connected to the control components to emit different frequencies or durations of beeping sounds when operation is confirmed, battery is low, or charging is complete. For example, a short beep sounds when the user starts the device or changes speed, an intermittent beep sounds when the battery is low, and a long beep sounds when charging is complete. This combination of sound and light enhances ease of use and accuracy of operational feedback.

[0044] like Figure 4As shown, in this embodiment, the cleaning brush 3 includes a brush rod 31 mounted on the connecting rod 28 and brush bristles 32 mounted on the brush rod 31. The brush rod 31 has a bent portion at one end near the connecting part, which bends away from the first axis, allowing the cleaning brush 3 to adapt to different gap angles and improve cleaning coverage. The brush rod 31 has a mounting groove for mounting the brush bristles 32, which are installed in the mounting groove. The cleaning brush 3 also includes a fixing member 33 mounted on the side of the brush rod 31 away from the mounting groove, used to firmly fix the brush bristles 32 in the mounting groove and prevent the brush bristles 32 from loosening or falling off during reciprocating motion.

[0045] Optionally, the bristles 32 are made of nylon or PBT. Nylon has excellent flexibility and elasticity, allowing it to adapt to the shape of complex crevices and effectively conform to the surface being cleaned, improving cleaning efficiency. It has good abrasion resistance and fatigue resistance, resulting in a long service life; it also has good chemical stability and corrosion resistance, making it suitable for various cleaning environments. PBT has high rigidity and good dimensional stability, maintaining the shape and arrangement of the bristles 32 to ensure consistent cleaning results. It has excellent abrasion resistance and good heat resistance, can withstand high-frequency reciprocating motion without easily deforming, and also has good chemical corrosion resistance, making it suitable for long-term use.

[0046] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0047] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A crevice brush, characterized in that, The device includes a main body (1), a drive assembly (2) and a control assembly disposed within the main body (1), and a cleaning brush (3) capable of reciprocating relative to the main body (1). The drive assembly (2) includes a drive base (21), and a drive motor (23), a first gear (24), a second gear (25), a swing arm (26), and a connecting rod (28) disposed within the drive base (21). The drive motor (23) is connected to the first gear (24) in a transmission manner, and the first gear (24) is meshed with the second gear (25). The first gear (24) rotates around a preset first axis, and the second gear (25) rotates around a second axis perpendicular to the first axis, wherein the first axis is the central axis of the main body (1). One end of the swing rod (26) is rotatably mounted on the second gear (25), and the other end is rotatably connected to the connecting rod (28). The end of the connecting rod (28) away from the swing rod (26) is connected to the cleaning brush (3), so that the cleaning brush (3) reciprocates along the central axis of the main body (1) under the drive of the drive assembly (2). The control assembly is communicatively connected to the drive assembly (2) and is used to control the start and stop and the speed of the drive assembly (2), thereby controlling the start and stop and the reciprocating speed of the cleaning brush (3).

2. The crevice brush as described in claim 1, characterized in that, The drive assembly (2) further includes a limiting sleeve (27) installed at one end of the drive base (21). The limiting sleeve (27) includes a limiting cavity and a movable cavity arranged sequentially along the first axis. The diameter of the movable cavity is larger than the diameter of the limiting cavity, and it is used to accommodate the swinging action of the swing rod (26). The limiting cavity is movably connected to the connecting rod (28) and is used to limit the radial displacement of the connecting rod (28).

3. The crevice brush as described in claim 2, characterized in that, The drive assembly (2) also includes a rechargeable power supply (22) installed on the drive base (21). The drive base (21) has a charging interface (29) at one end away from the limiting sleeve (27). One end of the rechargeable power supply (22) is electrically connected to the drive motor (23), and the other end is electrically connected to the charging interface (29). It is used to supply power to the drive motor (23) when the power is sufficient, and to obtain power from an external power source for charging through the charging interface (29) when the power is insufficient.

4. The crevice brush as described in claim 3, characterized in that, The main body (1) includes a main housing (11) for accommodating the drive assembly (2) and the control assembly, and a secondary housing (12) installed at one end of the main housing (11) for fixing the limiting sleeve (27). A plurality of sealing rings for waterproofing are provided between the secondary housing (12) and the limiting sleeve (27).

5. The crevice brush as described in claim 4, characterized in that, The slit brush also includes a sealing plug (13) disposed at one end of the main housing (11) away from the sub-housing (12), one end of the charging interface (29) extends out of the main housing (11), and the sealing plug (13) is used to seal the charging interface (29).

6. The crevice brush as described in claim 5, characterized in that, The sealing plug (13) includes a plug body for sealing the charging interface (29) and a pull ring for easy removal.

7. The crevice brush as described in claim 4, characterized in that, The outer surface of the main body (1) is provided with a button (14) and an indicator light. The button (14) and the indicator light are electrically connected to the control component. The button (14) is used to control the start and stop of the drive component (2) and the running speed. The indicator light is used to display the current running gear and the power status of the rechargeable power supply (22).

8. The crevice brush as described in claim 1, characterized in that, The cleaning brush (3) includes a brush rod (31) mounted on the connecting rod (28) and bristles (32) mounted on the brush rod (31). The brush rod (31) has a bend at one end near the connecting rod (28), and the bend bends away from the first axis.

9. The crevice brush as described in claim 8, characterized in that, The brush handle (31) has a mounting groove for mounting the bristles (32). The cleaning brush (3) also includes a fixing member (33) mounted on the side of the brush handle (31) away from the mounting groove. The fixing member (33) is used to fix the bristles (32) in the mounting groove.

10. The crevice brush as described in claim 9, characterized in that, The bristles (32) are made of nylon or PBT.

Images