A cleaning brush

Abstract

The utility model relates to a kind of cleaning brush, comprising: brush head, the size of brush head in length direction and width direction is different;Grip, one end of grip is equipped with connecting part, and connecting part is bent relative to grip, and one end of connecting part away from grip is connected with brush head;Driving part, it is equipped in grip and / or connecting part, and driving part is transmission connection with brush head;When driving part is driven relative to the movement of grip and / or connecting part, it drives brush head to rotate around the central axis direction of connecting part, to adjust the cleaning width of brush head, the greater the cleaning width, the greater the maximum distance between the edge of brush head and reference line, reference line is the projection line of the length direction of grip on the rotating plane of brush head, solve the problem that the angle of brush head needs to be adjusted manually by user when cleaning brush in prior art adjusts the angle of brush head to change cleaning width, it is easy to dirty user's hand, and user experience is poor.

Description

Technical Field

[0001] This utility model relates to the field of cleaning products technology, specifically to a cleaning brush. Background Technology

[0002] In daily life, cleaning brushes are used to clean various objects or corners in the home. Different shapes of brush heads are needed for different objects or corners. For example, a wider brush head is needed for a more spacious area, while a narrower brush head is needed for a narrower area. This requires preparing cleaning brushes with different cleaning widths at home, which increases storage problems and living expenses. To address this, existing technologies propose a solution that changes the cleaning width of the brush head by rotating it to adapt to different usage scenarios. For example, Chinese utility model patent CN222054875U discloses a solution that switches the brush head and handle from a locked state to an unlocked state by rotating the brush head or handle. However, this solution still has some problems. After the user unlocks the brush head and handle, they still need to manually grasp the brush head to adjust its angle and relock it. Since the brush head is usually in contact with the dirty surface to be cleaned, dirt will adhere to the brush head, making it easy for the user's hands to get dirty when manually adjusting the brush head angle, resulting in a poor user experience. Utility Model Content

[0003] This utility model mainly addresses the shortcomings of the existing technology, specifically relating to a cleaning brush. It solves the problem that in the existing technology, when adjusting the angle of the brush head to change the cleaning width, the user needs to manually adjust the angle of the brush head, which easily gets the user's hands dirty and results in a poor user experience.

[0004] This utility model relates to a cleaning brush, comprising: a brush head, the brush head having different dimensions in the length and width directions; a grip, one end of which has a connecting portion, and the connecting portion is bent relative to the grip, the end of the connecting portion away from the grip being connected to the brush head; and a drive portion disposed in the grip and / or the connecting portion, and the drive portion being pulsatorically connected to the brush head. When the drive portion is driven to move relative to the grip and / or the connecting portion, it drives the brush head to rotate around the central axis of the connecting portion to adjust the cleaning width of the brush head. The larger the cleaning width, the greater the maximum distance between the edge of the brush head and a reference line, the reference line being the projection line of the length direction of the grip portion onto the rotation plane of the brush head.

[0005] The advantages are: the brush head has different dimensions in both length and width, allowing users to choose the appropriate brush head with different cleaning widths for different usage scenarios, thus improving user convenience; the connecting part is bent relative to the grip, conforming to ergonomics. When the user grips the grip for cleaning, the grip and the surface to be cleaned will form a certain angle, while the bending of the connecting part relative to the grip allows the brush head mounted on the connecting part to be parallel to the surface to be cleaned, making cleaning easier; by driving the drive unit to rotate the brush head and adjust the cleaning width, the user does not need to manually grasp the brush head, but only needs to drive the drive unit to control the rotation of the brush head, which can avoid the user's hands getting dirty, resulting in a better user experience.

[0006] In one optional embodiment, the drive unit includes a transmission member and a drive member that are connected by a transmission member. The transmission member is disposed in the connecting part and is connected to the brush head by a transmission member. The drive member is disposed in the gripping part and / or the connecting part and is adapted to drive the transmission member to move axially in the connecting part when the drive member is driven to move. The axial movement of the transmission member in the connecting part drives the brush head to rotate.

[0007] The advantage is that, because the connecting part is bent relative to the gripping part, the transmission component is located in the connecting part so that the brush head can be rotated by the transmission component. When the driving component drives the transmission component to move and thus drive the brush head to rotate, the user only needs to operate the driving component to realize the rotation of the brush head. The user's hands do not need to touch the brush head, so the user's hands will not get dirty, resulting in a better user experience.

[0008] In one optional embodiment, the driving member is disposed on the gripping portion, the transmission member includes a sliding portion, and the driving member is provided with a mating portion, the sliding portion and the mating portion engaging through an inclined surface; the driving member moves along the length direction of the gripping portion, and the mating portion presses against the sliding portion through the inclined surface, causing the transmission member to move axially along the connecting portion.

[0009] The advantage is that when the drive unit is located in the grip, it is easy for the user to drive the drive unit while holding the grip, so that the user can rotate the brush head with one hand, resulting in a better user experience; the sliding part and the mating part are mated by a bevel, so that the drive unit and the transmission part can switch the direction of movement during the movement, thereby adapting to the handle where the connecting part is bent relative to the grip.

[0010] In one optional embodiment, the driving member has a protrusion at one end near the transmission member, and the mating part is a sliding groove formed on both sides of the protrusion, the sliding groove being inclined to the axial direction of the connecting part; the transmission member has a sliding groove on the side away from the brush head, and the sliding part is a slider provided on the side wall of the sliding groove. When the protrusion is inserted into the sliding groove, the slider enters the sliding groove; the driving member moves along the length direction of the gripping part, the slider slides along the sliding groove, the protrusion slides along the sliding groove, the side wall of the sliding groove presses against the slider, and the protrusion presses against the side wall of the sliding groove, causing the transmission member to move axially along the connecting part;

[0011] And / or the cleaning brush includes a first reset member, the drive member is disposed in the grip portion, the first reset member is disposed between the drive member and the grip portion, and / or the first reset member is disposed between the transmission member and the connecting portion, adapted to reset the drive member after being driven to move;

[0012] And / or the sliding direction of the sliding part and the mating part forms an obtuse angle or a right angle with the moving direction of the driving member.

[0013] The advantages are that the protrusion has a sliding groove, and the sliding groove has a slider. The slider slides along the sliding groove, and the protrusion slides along the sliding groove, making the relative movement between the driving component and the transmission component more reliable. This is because during the cooperation between the protrusion and the sliding groove, the slider and the sliding groove can limit the driving component and the transmission component in the vertical direction of the movement direction, so as to prevent the protrusion from disengaging from the sliding groove in the vertical direction during the movement of the driving component and the transmission component. The first reset component is provided so that after the user drives the driving component and moves it a certain distance, the driving component can be automatically restored to its original position, which is convenient for the next driving of the driving component.

[0014] In one optional embodiment, the brush head includes a rotating structure that is pulsatorically connected to the drive unit. The drive unit is driven to apply pressure to the rotating structure in the direction of the central axis of the connection to drive the rotating structure to rotate around the central axis of the connection, thereby driving the brush head to rotate.

[0015] The advantage is that a rotating structure is set up to connect the drive unit and the brush head. Since the brush head is a plate-shaped structure, a rotating structure protruding from the surface of the brush head is set up to cooperate with the drive unit, so that a structure that cooperates with the drive unit can be set on the rotating structure as needed.

[0016] In one optional embodiment, the rotation direction of the brush head is defined as a first direction. The rotating structure is provided with a first guide structure on the side facing the driving part. The first guide structure has a starting end and a ending end in sequence along the opposite direction to the first direction, and the starting end and the ending end have a height difference. When the driving part is driven to move along the axial direction of the connecting part, the driving part presses against the first guide structure, so that the first guide structure moves from the starting end to the ending end, thereby driving the rotating structure to rotate.

[0017] The advantage is that the first guide structure is set so that the rotating structure can rotate relative to the driving part through the first guide structure, so that the rotating structure and the driving part can rotate relative to each other in a preset manner. The first guide structure is set with a height difference, so that the first guide structure is in an inclined state. When the driving part comes into contact with the first guide structure, as the driving member squeezes the first guide structure in the axial direction of the connection part, the driving part can slide along the inclined first guide structure, thereby driving the rotating structure to rotate. The movement mode is simple and the operation is convenient.

[0018] In one optional embodiment, the starting end is higher than the ending end, and the first guide structure includes a first guide surface connecting the starting end and the ending end. The first guide surface is a helical surface. When the driving part is driven to move along the axial direction of the connecting part, the driving part abuts against the first guide surface, so that the first guide surface moves from abutting against the driving part at the starting end to abutting against the driving part at the ending end.

[0019] The advantage is that the first guide surface is set so that the starting end is higher than the ending end, and the first guide surface is formed into an inclined spiral surface, so that the driving part can squeeze the first guide surface from the higher end, so that the first guide surface slides relative to the driving part and rotates to the lower end of the first guide surface to abut and cooperate with the driving part.

[0020] In one optional embodiment, the rotating structure has a plurality of first guide structures on the side facing the driving part, and a second guide surface is provided between two adjacent first guide structures; the second guide surface has a starting end and a ending end in sequence along a direction opposite to the first direction, and the starting end of the second guide surface is lower than the ending end; the driving part presses against the first guide structure, so that when the first guide structure moves from the starting end to the ending end, the driving part abuts against the second guide surface, and when the driving part slides along the starting end of the second guide surface to pass the ending end of the second guide surface, the driving part abuts against the starting end of another adjacent first guide structure.

[0021] The advantage is that multiple first guide surfaces and second guide surfaces are connected end to end, so that the rotating structure can rotate continuously in one direction relative to the transmission component, making operation more convenient. The starting end of the second guide surface is lower than the ending end, and the starting end of the second guide surface is connected to the ending end of the first guide surface, so that the second guide surface forms a track for resetting relative to the drive part. This allows the brush head to rotate relative to the first guide surface when it moves relative to the drive part, and the drive part to abut against the starting end of another adjacent first guide surface when it moves relative to the second guide surface, so as to prepare for the brush head to rotate again.

[0022] In one optional embodiment, the end of the driving part facing the brush head is provided with a third guide surface that slides in cooperation with the first guide structure. When the driving part is driven to move axially along the connecting part, the third guide surface presses against the first guide structure and slides along the first guide structure.

[0023] The advantage is that by setting a third guide surface that mates with the first guide surface, the surface contact makes the movement of the rotating structure relative to the drive unit more reliable, less prone to derailment, and also easier to assemble.

[0024] In one optional embodiment, the first guide structure includes a first guide surface, and the third guide surface matches the shape of the first guide surface so that when the first guide surface slides relative to the third guide surface, the contact area between the first guide surface and the third guide surface gradually increases.

[0025] The advantage is that the shape of the third guide surface matches that of the first guide surface, so that when the first guide surface moves relative to the third guide surface, the contact area between the two gradually increases, the friction increases, and the cooperation between the rotating structure and the transmission component is more reliable.

[0026] In one optional embodiment, a fourth guide surface is provided between two adjacent third guide surfaces; the third guide surface is driven to press against the first guide surface, so that the first guide surface moves from its starting end to its ending end to abut against the third guide surface. At this time, the second guide surface abuts against the fourth guide surface, and the fourth guide surface slides along the starting end of the second guide surface to pass the ending end of the second guide surface, so that the third guide surface abuts against the starting end of another first guide surface.

[0027] In one optional embodiment, the connecting portion is provided with a plurality of limiting engagement portions on the side facing the brush head. The brush head includes a limiting portion that engages with the limiting engagement portions. A fifth guide surface is provided between two adjacent limiting engagement portions. The fifth guide surface has a starting end and a ending end in sequence along the first direction. When the rotating structure rotates around the central axis of the connecting portion, it synchronously drives the limiting portion to slide along the starting end of the fifth guide surface to the ending end. The limiting portion engages with the limiting engagement portion near the ending end of the fifth guide surface to restrict the rotation of the brush head relative to the gripping portion.

[0028] The advantage is that a fifth guide surface is provided so that during the rotation of the brush head, the limiting part can be guided along the fifth guide surface to move from one limiting mating part to another adjacent limiting mating part for limiting, so that the brush head is kept in the state after rotation.

[0029] In one optional embodiment, a sixth guide surface communicating with the fifth guide surface is provided between two adjacent limiting mating parts. The sixth guide surface has a starting end and a ending end in sequence along the first direction, and the starting end of the sixth guide surface is connected to the ending end of the fifth guide surface. The ending end of the sixth guide surface is connected to the limiting mating part near the ending end of the fifth guide surface. There is an included angle between the fifth guide surface and the sixth guide surface.

[0030] When the limiting part slides to the end of the fifth guide surface and enters the beginning of the sixth guide surface, the limiting part slides along the beginning of the sixth guide surface to the limiting mating part, and at the same time, the fourth guide surface slides along the beginning of the second guide surface to pass the end of the second guide surface, so that the third guide surface abuts against the beginning of another first guide surface.

[0031] The advantage is that by setting a sixth guide surface and having an angle between the sixth guide surface and the fifth guide surface, the two limiting mating parts located at the starting end of the fifth guide surface and the ending end of the sixth guide surface can be on the same plane, which facilitates the assembly of the connecting part and the brush head.

[0032] In one optional embodiment, the connecting part includes a positioning post and a fixing part. The positioning post passes through the brush head and is connected to the fixing part. A second reset member is provided between the fixing part and the brush head. When the limiting part slides from the starting end of the fifth guide surface to the ending end and enters the starting end of the sixth guide surface, the driving part is driven to apply pressure to the rotating structure in the central axial direction of the rotating structure, so that the brush head moves away from the connecting part and the second reset member is in a compressed state. Under the force of the second reset member restoring from the compressed state, the brush head is driven to move towards the connecting part, so that the limiting part slides from the starting end of the sixth guide surface to the ending end and engages with the limiting mating part.

[0033] The advantage is that the connecting part and the brush head are connected in a movable manner, so that the brush head can slide up and down along the positioning post and get out of the limit of the limiting part. It also facilitates the rotation of the brush head. The second reset part is provided so that after the brush head is driven away from the connecting part, it can move towards the direction closer to the connecting part to re-fix the rotated brush head.

[0034] In one optional embodiment, a receiving groove is provided between the brush head and the rotating structure, the limiting part is disposed in the receiving groove and extends outward from the side wall of the rotating structure to form a protrusion, and the connecting part has at least one side having a limiting fitting part extending into the receiving groove to cooperate with the limiting part, the limiting fitting part being a groove that matches the protrusion.

[0035] The advantage is that by setting up a receiving groove, the fifth and sixth guide surfaces can be avoided and hidden, making the brush head look better. The matching method of the protrusion and the groove is simpler and more reliable, and it is also easier to process.

[0036] In one optional embodiment, when the driving part is driven to rotate the brush head about the central axis of the connecting part by an angle of α, the number of the limiting part and / or the limiting mating part is 360° / α.

[0037] The advantage is that it allows the brush head to rotate a full circle around the connection point in one direction.

[0038] In one optional embodiment, the cleaning brush has a first state and a second state. In the first state, the cleaning width of the brush head is at its maximum, and in the second state, the cleaning width of the brush head is at its minimum. When the driving part is driven to move relative to the holding part and / or the connecting part, it drives the brush head to rotate around the central axis of the connecting part, so as to facilitate the switching of the brush head between the first state and the second state.

[0039] The advantage is that the two states correspond to different cleaning widths of the brush head, allowing users to choose the appropriate state according to the usage scenario. The two states can be switched freely, making it more convenient for users.

[0040] In one alternative implementation, the cleaning brush also exists in an intermediate state;

[0041] When the driving unit moves from the initial position to the driving position relative to the holding unit, the cleaning brush enters the intermediate state from the first state; when the driving unit moves from the driving position to the initial position, the cleaning brush enters the second state from the intermediate state.

[0042] When the driving part moves from the initial position to the driving position relative to the gripping part, the cleaning brush enters the intermediate state from the second state; when the driving part moves from the driving position to the initial position, the cleaning brush enters the first state from the intermediate state.

[0043] The advantage is that by setting an intermediate state, when the user enters the first or second state from the intermediate state, the drive unit resets to the initial state. This allows the user to drive the drive unit to rotate the brush head the next time without having to perform any other separate actions to reset it, resulting in a better user experience.

[0044] In one alternative implementation, in the intermediate state, the brush head rotates by an angle β around the central axis of the connection to enter either the first or second state, wherein 5°≤β≤30°.

[0045] In one optional embodiment, the angle between the extending direction of the connecting portion and the extending direction of the gripping portion is γ, wherein 90°≤γ<180°.

[0046] The advantage is that it creates a certain angle between the grip and the surface to be cleaned, making it easier for the user to hold the grip for cleaning operations, which conforms to the user's operating habits. When γ < 90°, the rotation of the brush head will interfere with the grip or the hand holding it, affecting the use. When γ = 180°, the grip and the brush head are set perpendicularly, and the cleaning width of the brush head cannot be changed when the brush head is rotated at any angle. Only when 90° ≤ γ < 180° can the cleaning width of the brush head be adjusted by rotating the brush head through the drive unit without the brush head interfering with the grip or the hand holding it, resulting in a better user experience. Attached Figure Description

[0047] 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.

[0048] Figure 1 This is a schematic diagram illustrating the state switching of the toilet brush according to an embodiment of the present utility model;

[0049] Figure 2 This is a schematic diagram of the toilet brush in the first state according to an embodiment of the present utility model;

[0050] Figure 3 This is a schematic diagram of the toilet brush in the second state according to an embodiment of the present utility model;

[0051] Figure 4 This is a schematic diagram of the toilet brush in an intermediate state according to an embodiment of the present utility model;

[0052] Figure 5 This is a schematic diagram of the drive component in the toilet brush according to an embodiment of the present utility model;

[0053] Figure 6 This is a schematic diagram of the transmission component in the toilet brush according to an embodiment of the present utility model;

[0054] Figure 7 This is a schematic diagram of the brush head structure in the toilet brush of this utility model embodiment;

[0055] Figure 8 This is a schematic diagram of the connecting part in the toilet brush of this utility model embodiment;

[0056] Figure 9 This is a partial cross-sectional structural diagram of the drive unit in a toilet brush according to an embodiment of the present invention.

[0057] Explanation of reference numerals in the attached figures:

[0058] 10. Brush head; 101. Rotating structure; 11. First guide surface; 11a. Starting end of the first guide surface; 11b. Ending end of the first guide surface; 12. Second guide surface; 12a. Starting end of the second guide surface; 12b. Ending end of the second guide surface; 13. Limiting part; 14. Receiving groove;

[0059] 20. Drive unit; 21. Drive component; 211. Mating part; 212. Protrusion; 213. Mounting chamber; 214. Opening; 215. Push knob; 22. Transmission component; 221. Sliding part; 222. Sliding groove; 23. First reset component; 24. Third guide surface; 25. Fourth guide surface;

[0060] 30. Holding part;

[0061] 40. Connecting part; 41. Limiting mating part; 42. Fifth guide surface; 42a. Starting end of the fifth guide surface; 42b. Ending end of the fifth guide surface; 43. Sixth guide surface; 43a. Starting end of the fifth guide surface; 43b. Ending end of the fifth guide surface; 44. Positioning post; 45. Fixing part; 46. Second reset member. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0063] This utility model relates to a cleaning brush, comprising: a brush head 10, the brush head 10 having different dimensions in the length and width directions; a grip portion 30, one end of which is provided with a connecting portion 40, and the connecting portion 40 is bent relative to the grip portion 30, the end of the connecting portion 40 away from the grip portion 30 being connected to the brush head 10; and a drive portion 20 disposed in the grip portion 30 and / or the connecting portion 40, and the drive portion 20 being tractively connected to the brush head 10; when the drive portion 20 is driven to move relative to the grip portion 30 and / or the connecting portion 40, it drives the brush head 10 to rotate around the central axis of the connecting portion 40, thereby adjusting the cleaning width of the brush head 10. The larger the cleaning width, the greater the maximum distance between the edge of the brush head 10 and the reference line, the reference line being the projection line of the length direction of the grip portion 30 onto the rotation plane of the brush head 10.

[0064] The brush head 10 has different dimensions in both length and width, allowing users to select different cleaning widths for different usage scenarios, thus improving user convenience. The connecting part 40 is bent relative to the grip part 30, conforming to ergonomics. When the user grips the grip part 30 for cleaning, the grip part 30 forms a certain angle with the surface to be cleaned. The bending of the connecting part 40 relative to the grip part 30 ensures that the brush head 10 mounted on the connecting part 40 is parallel to the surface to be cleaned, facilitating cleaning. By driving the drive part 20 to rotate the brush head 10 and adjust its cleaning width, the user does not need to manually grip the brush head 10. They can control the rotation of the brush head 10 simply by driving the drive part 20, preventing dirt from sticking to the user's hands and providing a better user experience.

[0065] The brush head 10 is used to contact the surface to be cleaned by squeezing and / or scraping. Therefore, the side of the brush head 10 facing the surface to be cleaned is provided with cleaning components such as bristles, a cleaning cloth, or a sponge. In this example, the cleaning brush can be applied to shoe brushes, toilet brushes, pot brushes, and toothbrushes. The cleaning components of the brush head 10 can be set to different types depending on the usage scenario. In this example, the dimensions of the brush head 10 in the length and width directions are different, that is, the brush head 10 forms a strip-shaped or rectangular structure. In this example, the brush head 10 has the largest dimension in the length direction. That is, when cleaning using the length direction of the brush head 10, the cleaning width of the brush head 10 is the largest, and the area cleaned by pushing and pulling the brush head 10 once is the largest. For some large surfaces to be cleaned, choosing to clean using the length direction of the brush head 10 can improve cleaning efficiency. The brush head 10 has the smallest dimension in the width direction. That is, when cleaning using the width direction of the brush head 10, the cleaning width of the brush head 10 is the smallest, and the area cleaned by pushing and pulling the brush head 10 once is the smallest. It is suitable for cleaning some narrow crevices. This allows users to choose different directions of the brush head 10 to clean according to different types of surfaces to be cleaned, resulting in a better user experience.

[0066] The grip portion 30 forms the handle of the cleaning brush. One end of the grip portion 30 is provided with a brush head 10 via a connecting portion 40, allowing the user to grip the grip portion 30 to drive the cleaning brush for cleaning. In this example, the grip portion 30 is preferably a slender rod-shaped structure. The connecting portion 40 is located at one end of the grip portion 30. In this example, the connecting portion 40 and the grip portion 30 are preferably integrally formed. Of course, the two can also be separately formed and then assembled. In this example, the connecting portion 40 is bent relative to the grip portion 30, that is, the central axis of the connecting portion 40 is offset by a certain angle relative to the central axis of the grip portion 30, so that the central axis of the grip portion 30 is offset by a certain angle relative to the central axis of the rotation plane of the brush head 10. This ensures that when the user holds the grip portion 30 for cleaning, the brush head 10 remains parallel to the surface to be cleaned, which is ergonomic.

[0067] The drive unit 20 is used to drive the brush head 10 to rotate. The drive unit 20 can be located in the connecting part 40 or in the grip part 30. In this example, the drive unit 20 is preferably located in both the connecting part 40 and the grip part 30, that is, a part of the drive unit 20 is located in the connecting part 40 and the other part is located in the grip part 30. The user can drive the brush head 10 mounted on the connecting part 40 by driving the drive unit 20 located in the grip part 30. This drives the brush head 10 mounted on the connecting part 40 to rotate, so that the driving end of the drive unit 20 is away from the brush head 10, avoiding soiling the user's hands. When the drive unit 20 is driven to move relative to the grip part 30 and / or the connecting part 40, when the drive unit 20 is located in the grip part 30, the drive unit 20 rotates. The moving part 20 moves relative to the gripping part 30, that is, the driving part 20 can move along the length direction of the gripping part 30 (e.g., push knob 215) or along the width direction of the gripping part 30 (e.g., button). When the driving part 20 is provided in the connecting part 40, the driving part 20 moves relative to the connecting part 40, that is, the driving part 20 can move along the axial direction of the connecting part 40 or along the radial direction of the connecting part 40. In this example, the driving part 20 preferably moves along the length direction of the gripping part 30. Specifically, a slot can be provided on the side wall of the gripping part 30, the driving part 20 is installed in the slot and can slide in the slot to form push knob 215 for driving. It can be understood that the driving part 20 can also form a button for driving.

[0068] The baseline is a reference line that passes through the connecting part 40 and is set on the rotating plane of the brush head 10. Under normal circumstances, when cleaning, the user will hold the grip part 30 to drive the brush head 10 to push and pull along the extension direction of the baseline, thereby cleaning the surface to be cleaned. Therefore, the greater the distance between the edge of the brush head 10 and the baseline, the larger the area cleaned by the brush head 10 in a single push and pull.

[0069] In one optional embodiment, the driving unit 20 includes a transmission member 22 and a driving member 21 connected by a transmission link. The transmission member 22 is disposed in the connecting portion 40 and is connected to the brush head 10 by a transmission link. The driving member 21 is disposed in the grip portion 30 and / or the connecting portion 40, and is adapted to drive the transmission member 22 to move axially in the connecting portion 40 when the driving member 21 is driven to move. The axial movement of the transmission member 22 in the connecting portion 40 drives the brush head 10 to rotate. Since the connecting portion 40 is bent relative to the grip portion 30, the transmission member 22 is disposed in the connecting portion 40 to facilitate the rotation of the brush head 10 via the transmission member 22. When the drive component 21 drives the transmission component 22 to move, thereby causing the brush head 10 to rotate, the user only needs to operate the drive component 21 to achieve the rotation of the brush head 10. The user's hands do not need to touch the brush head 10, thus avoiding getting the user's hands dirty and providing a better user experience. In this example, the drive component 21 is preferably located in the grip portion 30. As the drive component 21 pushes along the length direction of the grip portion 30 toward the brush head 10, it drives the transmission component 22 to move toward the brush head 10 in the axial direction of the connecting portion 40, thereby squeezing the brush head 10 and causing it to rotate. The switch from linear motion to rotational motion can be achieved through a helical inclined plane (described in detail below).

[0070] In one optional embodiment, the driving member 21 is disposed on the grip portion 30, and the transmission member 22 includes a sliding portion 221. The driving member 21 is provided with a mating portion 211, and the sliding portion 221 and the mating portion 211 are engaged by an inclined surface. The driving member 21 moves along the length direction of the grip portion 30, and the mating portion 211 presses the sliding portion 221 by the inclined surface, causing the transmission member 22 to move along the axial direction of the connecting portion 40. When the driving member 21 is disposed in the grip portion 30, it is convenient for the user to drive the driving member 21 while holding the grip portion 30, so that the user can complete the rotation of the brush head 10 with one hand, resulting in a better user experience. The sliding portion 221 and the mating portion 211 are engaged by an inclined surface, so that the driving member 21 and the transmission member 22 can switch their movement directions during movement, thereby adapting to the handle of the connecting portion 40 that is bent relative to the grip portion 30.

[0071] In one optional embodiment, the driving member 21 has a protrusion 212 at one end near the transmission member 22, and the mating part 211 is a sliding groove formed on both sides of the protrusion 212, the sliding groove being axially inclined with the connecting part 40; the transmission member 22 has a sliding groove 222 on the side away from the brush head 10, and the sliding part 221 is a slider provided on the side wall of the sliding groove 222. When the protrusion 212 is inserted into the sliding groove 222, the slider enters the sliding groove; the driving member 21 moves along the length direction of the gripping part 30, the slider slides along the sliding groove, the protrusion 212 slides along the sliding groove 222, and the sliding groove... The sidewall presses against the slider, and the protrusion 212 presses against the sidewall of the sliding groove 222, causing the transmission member 22 to move axially along the connecting part 40. The protrusion 212 is provided with a sliding groove, and the sliding groove 222 is provided with a slider. The slider slides along the sliding groove, and the protrusion 212 slides along the sliding groove 222, making the relative movement between the driving member 21 and the transmission member 22 more reliable. This is because during the cooperation between the protrusion 212 and the sliding groove 222, the slider and the sliding groove can limit the driving member 21 and the transmission member 22 in the direction perpendicular to the direction of movement, so as to prevent the protrusion 212 from disengaging from the sliding groove 222 in this vertical direction during the movement of the driving member 21 and the transmission member 22.

[0072] Understandably, the drive member 21 and the transmission member 22 can also slide together through the protrusion and the sliding groove 222. As long as the drive member 21 moves along the length of the grip 30, the inner wall of the grip 30 will limit the movement direction of the drive member 21 to prevent the protrusion 212 from dislodging and coming out of the sliding groove 222 during the movement.

[0073] Understandably, the mating part 211 is the first inclined surface and the sliding part 221 is the second inclined surface. When the driving member 21 is driven to move, the driving member 21 will press the second inclined surface provided on the transmission member 22 through the first inclined surface, so that the transmission member 22 moves toward the brush head 10.

[0074] The cleaning brush includes a first reset member 23. The driving member 21 is disposed in the grip portion 30. The first reset member 23 is disposed between the driving member 21 and the grip portion 30, and / or between the transmission member 22 and the connecting portion 40. It is suitable for resetting the driving member 21 after it has been driven to move. The first reset member 23 is provided so that after the user drives the driving member 21 to move a certain distance, the driving member 21 can automatically return to its original position, which is convenient for driving the driving member 21 next time. The first reset member 23 is preferably a spring, which has the advantages of low cost, stable performance and easy installation. Of course, the first reset member 23 can also be a soft rubber, tension spring or other structure that can automatically recover after being compressed and deformed. In this example, the first reset member 23 is preferably disposed between the driving member 21 and the grip portion 30. Specifically, the driving member 21 is a rod-shaped structure. The driving member 21 has a protrusion The rear end of part 212 is provided with a mounting chamber 213, in which the first reset member 23 is installed. The mounting chamber 213 has an opening 214 on the side near the protrusion 212, and a baffle is formed on the side of the mounting chamber 213 away from the protrusion 212, so that the two ends of the first reset member 23 abut against the baffle and the protrusion 212 respectively. The gripping part 30 has a receiving chamber for accommodating the driving member 21. A pressing member is provided in the receiving chamber. When the driving member 21 is installed in the receiving chamber, the pressing member is opposite to the opening 214, so that when the driving member 21 moves from the initial position toward the direction closer to the brush head 10, the pressing member will extend into the opening 214 to press against the first reset member 23, so that the first reset member 23 is in a compressed and stored state. When the driving of the driving member 21 is canceled, under the reset force of the first reset member 23, the driving member 21 will move toward the direction away from the brush head 10 to reach the initial position.

[0075] Understandably, a first stop (not shown in the figure) can be provided on the drive member 21, and a second stop (not shown in the figure) can be provided in the receiving chamber. When the drive member 21 is installed in the receiving chamber, there is a space between the first stop and the second stop. This space is used to set the first reset member 23, so that when the drive member 21 moves from the initial position toward the direction closer to the brush head 10, the first stop will compress the first reset member 23 and enter a charging state. When the drive of the drive member 21 is canceled, under the reset force of the first reset member 23, the drive member 21 will move toward the direction away from the brush head 10 to reach the initial position.

[0076] Understandably, the first reset member 23 can be disposed between the transmission member 22 and the connecting part 40 (not shown in the figure). When the transmission member 22 is driven by the driving member 21 to move towards the brush head 10, the first reset member 23 will be in a charging state. When the transmission member 22 moves away from the brush head 10 under the reset force of the first reset member 23, it will drive the driving member 21 to move in the opposite direction to the initial position. The way the first reset member 23 is disposed between the transmission member 22 and the connecting part 40 is similar to the way it is disposed between the driving member 21 and the gripping part 30, and will not be described in detail here.

[0077] The sliding direction of the sliding part 221 and the mating part 211 forms an obtuse angle or a right angle with the moving direction of the driving member 21. This allows the driving member 21 to drive the transmission member 22 to press the rotating structure 101 downward when moving towards the brush head 10, and to drive the transmission member 22 to move upward to reset when moving away from the brush head 10. However, when the sliding direction of the sliding part 221 and the mating part 211 forms an acute angle with the moving direction of the driving member 21, the bending angle between the gripping part 30 and the connecting part 40 becomes too large, which does not conform to the user's operating habits and makes it more difficult to use.

[0078] In one optional embodiment, the brush head 10 includes a rotating structure 101, which is connected to the driving part 20. The driving part 20 is driven to apply pressure to the rotating structure 101 in the direction of the central axis of the connecting part 40 to drive the rotating structure 101 to rotate around the central axis of the connecting part 40, thereby driving the brush head 10 to rotate. The rotating structure 101 is provided to connect the driving part 20 and the brush head 10. Since the brush head 10 is a plate-shaped structure, the rotating structure 101 protruding from the surface of the brush head 10 is provided to cooperate with the driving part 20, so that a structure that cooperates with the driving part 20 can be provided on the rotating structure 101 as needed. In this example, preferably, the rotating structure 101 is a columnar protrusion structure provided on the brush head 10. To facilitate the rotation of the rotating structure 101 relative to the connecting part 40, the shape of the rotating structure 101 matches the shape of the connecting part 40. The rotating structure 101 can be integrally formed with the brush head 10, or it can be separately formed with the brush head 10 and then assembled, as long as the rotation of the rotating structure 101 can synchronously drive the brush head 10 to rotate.

[0079] In one optional embodiment, the rotation direction of the brush head 10 is defined as a first direction. The rotating structure 101 is provided with a first guide structure on the side facing the driving part 20. The first guide structure has a starting end and a ending end in sequence along the direction opposite to the first direction, and the starting end and the ending end have a height difference. When the driving part 20 is driven to move along the axial direction of the connecting part 40, the driving part 20 presses against the first guide structure, so that the first guide structure moves from the starting end to the ending end of the driving part 20, thereby driving the rotating structure 101 to rotate. The first guide structure is provided so that the rotating structure 101 can rotate relative to the driving part 20 through the first guide structure, so that the rotating structure 101 and the driving part 20 can rotate relative to each other in a preset manner.

[0080] The starting end of the first guide structure is the end where the driving part 20 abuts against the first guide structure when the brush head 10 is not rotating, and the ending end is the end where the driving part 20 abuts against the first guide structure when it is driven to the limit position. When there is a height difference between the starting end and the ending end, the first guide structure is tilted so that when the driving part 20 abuts against the first guide structure, as the driving member 21 presses against the first guide structure in the axial direction of the connecting part 40, the driving part 20 can slide along the tilted first guide structure, thereby driving the rotating structure 101 to rotate. The movement mode is simple and the operation is convenient.

[0081] In one optional embodiment, the starting end 11a is higher than the ending end 11b, and the first guide structure includes a first guide surface 11 connecting the starting end 11a and the ending end 11b. The first guide surface 11 is a helical curved surface. When the driving part 20 is driven to move along the axial direction of the connecting part 40, the driving part 20 presses against the first guide surface 11, so that the first guide surface 11 moves from the starting end 11a abutting against the driving part 20 to the ending end 11b abutting against the driving part 20. The starting end 11a is set higher than the ending end 11b. The first guide surface 11 of the termination end 11b is formed as an inclined spiral surface. In this example, the first guide surface 11 is preferably formed as a shape similar to a DNA helix. When the driving part 20 is located on the upper part of the first guide surface 11 and at the higher starting end 11a, the driving part 20 can squeeze the first guide surface 11 from the higher end, so that the first guide surface 11 slides relative to the driving part 20 and rotates until the lower end of the first guide surface 11 abuts against the driving part 20, thereby realizing the rotation of the rotating structure 101.

[0082] Understandably, the starting end 11a of the first guide surface 11 can be set lower than the ending end 11b (not shown in the figure). In this case, the end of the drive unit 20 that cooperates with the first guide surface 11 should be located at the lower part of the first guide surface 11. When the drive unit 20 moves in a direction away from the brush head 10, that is, when the drive unit 20 moves upward, it will squeeze the first guide surface 11, so that the first guide surface 11 slides from the lower starting end 11a to the higher ending end 11b to abut against the drive unit 20, thereby driving the rotating structure 101 to rotate.

[0083] In one optional embodiment, the rotating structure 101 has a plurality of first guide structures on the side facing the driving part 20, and a second guide surface 12 is provided between two adjacent first guide structures; the second guide surface 12 has a starting end 12a and a ending end 12b in a direction opposite to the first direction, and the starting end 12a of the second guide surface 12 is lower than the ending end 12b; the driving part 20 presses against the first guide structure, so that when the first guide structure moves from the starting end 11a to the driving part 20 and then to the ending end 11b, the driving part 20 abuts against the second guide surface 12, and when the driving part 20 slides along the starting end 12a of the second guide surface 12 past the ending end 12b, the driving part 20 abuts against the adjacent first guide structure 20. The starting end 11a of the first guide structure abuts against the first guide surface 11 and the second guide surface 12 are connected end to end so that the rotating structure 101 can rotate continuously in one direction relative to the transmission member 22, making operation more convenient. The starting end 12a of the second guide surface 12 is lower than the ending end 12b, and the starting end 12a of the second guide surface 12 is connected to the ending end 11b of the first guide surface 11. The ending end 12b of the second guide surface 12 is connected to the starting end 11a of the adjacent first guide surface 11, so that the second guide surface 12 forms a track for resetting relative to the driving part 20. This allows the rotating structure 101 to rotate so that the first guide surface 11 and the second guide surface 12 move relative to the driving part 20 in sequence, and the driving part 20 will abut against the starting end 11a of the adjacent first guide surface 11, so as to prepare for the brush head 10 to rotate again.

[0084] In one optional embodiment, the drive unit 20 has a third guide surface 24 at one end facing the brush head 10, which slides in cooperation with the first guide structure. When the drive unit 20 is driven to move along the axial direction of the connecting part 40, the third guide surface 24 presses against the first guide structure and slides along the first guide structure. The third guide surface 24, which cooperates with the first guide surface 11, makes the movement of the rotating structure 101 relative to the drive unit 20 more reliable, less prone to derailment, and also facilitates assembly. The third guide surface 24 is used to contact the first guide structure and make the first guide structure slide relative to the third guide surface 24. Therefore, the third guide surface 24 is preferably a smooth curved surface, which makes the sliding smoother.

[0085] In one optional embodiment, the first guide structure includes a first guide surface 11, and the third guide surface 24 matches the shape of the first guide surface 11 so that when the first guide surface 11 slides relative to the third guide surface 24, the contact area between the first guide surface 11 and the third guide surface 24 gradually increases. When the shapes of the third guide surface 24 and the first guide surface 11 are matched and both are inclined spiral surfaces, the contact area between the two gradually increases when the first guide surface 11 moves relative to the third guide surface 24, and the friction increases, making the cooperation between the rotating structure 101 and the transmission component 22 more reliable.

[0086] Understandably, the third guide surface 24 is an arc surface (not shown in the figure). Specifically, the side of the drive part 20 facing the first guide structure is formed as a cylindrical guide end that adapts to the first guide surface 11. Correspondingly, the third guide surface 24 is arc-shaped, as long as the first guide surface 11 can slide relative to the third guide surface 24.

[0087] Understandably, the third guide surface 24 is a spherical surface (not shown in the figure). Specifically, the drive unit 20 forms a spherical guide end on the side facing the first guide structure, so the third guide surface 24 is a spherical surface. Correspondingly, the first guide surface 11 and the second guide surface 12 are provided with guide grooves that are adapted to spherical sliding, as long as the first guide surface 11 can slide relative to the third guide surface 24.

[0088] In one optional embodiment, a fourth guide surface 25 is disposed between two adjacent third guide surfaces 24; the third guide surface 24 is driven to press against the first guide surface 11, so that the first guide surface 11 moves from its starting end 11a to its ending end 11b, where it abuts against the third guide surface 24. At this time, the second guide surface 12 abuts against the fourth guide surface 25, and the fourth guide surface 25 slides along the starting end 12a of the second guide surface 12 to pass over the ending end 12b of the second guide surface 12, so that the third guide surface 24 and another first guide surface 25 abut against the third guide surface 24. The starting end 11a of surface 11 abuts against the second guide surface 12, and a fourth guide surface 25 is provided so that when the rotating structure 101 and the driving part 20 are relatively far apart, the fourth guide surface 25 and the second guide surface 12 slide relative to each other. In this example, preferably, the shapes of the fourth guide surface 25 and the second guide surface 12 are matched, so that when the rotating structure 101 rotates along the driving part 20 until the fourth guide surface 25 abuts against the second guide surface 12, the rotating structure 101 can fit tightly with the driving part 20. In this state, it can prevent the rotating structure 101 from derailing from the driving part 20 and causing a malfunction, and at the same time, it is convenient for the fourth guide surface 25 and the second guide surface 12 to slide relative to each other.

[0089] In one optional embodiment, the connecting portion 40 is provided with a plurality of limiting engagement portions 41 on the side facing the brush head 10. The brush head 10 includes a limiting portion 13 that engages with the limiting engagement portions 41. A fifth guide surface 42 is provided between two adjacent limiting engagement portions 41. The fifth guide surface 42 has a starting end 42a and a ending end 42b sequentially along the first direction. When the rotating structure 101 rotates around the central axis of the connecting portion 40, it synchronously drives the limiting portion 13 to slide along the starting end 42a to the ending end 42b of the fifth guide surface 42. The limiting portion 13 and the portion close to the fifth guide surface 42... The limiting engagement part 41 of the termination end 42b engages to restrict the brush head 10 from rotating relative to the grip part 30. Preferably, a plurality of limiting engagement parts 41 are evenly provided in the circumferential direction of the connecting part 40, while the limiting part 13 can be set to one, or it can be matched with the number of limiting engagement parts 41. Preferably, the fifth guide surface 42 is an inclined spiral curved surface. The fifth guide surface 42 is provided so that during the rotation of the brush head 10, the limiting part 13 is guided to move along the fifth guide surface 42 from one limiting engagement part 41 to another adjacent limiting engagement part 41 for limiting, so that the brush head 10 is kept in the state after rotation.

[0090] In one optional embodiment, a sixth guide surface 43 communicating with the fifth guide surface 42 is provided between two adjacent limiting mating parts 41. The sixth guide surface 43 has a starting end 43a and a ending end 43b sequentially along the first direction, and the starting end 43a of the sixth guide surface 43 is connected to the ending end 42b of the fifth guide surface 42. The ending end 43b of the sixth guide surface 43 is connected to the limiting mating part 41 near the ending end 42b of the fifth guide surface 42. There is an included angle between the fifth guide surface 42 and the sixth guide surface 43. When the limiting part 13 slides to the ending end 42b of the fifth guide surface 42 and enters the starting end 43a of the sixth guide surface 43, the limiting part 13 slides along the starting end 43a of the sixth guide surface 43 to the starting end 43a of the fifth guide surface 42. The limiting mating part 41 is described above. At the same time, the fourth guide surface 25 slides along the starting end 12a of the second guide surface 12 to the ending end 12b of the second guide surface 12, so that the third guide surface 24 abuts against the starting end 11a of another first guide surface 11. The sixth guide surface 43 is connected to the fifth guide surface 42, that is, the mating part 211 can move seamlessly along the fifth guide surface 42 to the sixth guide surface 43. Preferably, the sixth guide surface 43 is an inclined spiral curved surface. When the sixth guide surface 43 is provided and there is an angle between the sixth guide surface 43 and the fifth guide surface 42, on the one hand, the two limiting mating parts 41 provided at the starting end 42a of the fifth guide surface 42 and the ending end 43b of the sixth guide surface 43 can be in the same plane, which facilitates the assembly of the connecting part 40 and the brush head 10.

[0091] In an optional embodiment, the connecting portion 40 includes a positioning post 44 and a fixing portion 45. The positioning post 44 passes through the brush head 10 and is connected to the fixing portion 45. A second reset member 46 is provided between the fixing portion 45 and the brush head 10. When the limiting portion 13 slides from the starting end 42a of the fifth guide surface 42 to the ending end 42b and enters the starting end 43a of the sixth guide surface 43, the driving portion 20 is driven to apply pressure to the rotating structure 101 in the central axial direction, causing the brush head 10 to move away from the connecting portion 40 and the second reset member 46 to be in a compressed state. Under the force of state restoration, the brush head 10 is driven to move toward the connecting part 40, so that the limiting part 13 slides along the starting end 43a to the ending end 43b of the sixth guide surface 43 and engages with the limiting engagement part 41. The connecting part 40 and the brush head 10 are connected in a movable manner so that the brush head 10 can slide up and down along the positioning post 44 and disengage from the limiting engagement part 41. It also facilitates the rotation of the brush head 10. The second reset member 46 is provided so that after the brush head 10 is driven away from the connecting part 40, it can move toward the connecting part 40 to re-fix the rotated brush head 10. This way, the reset of the brush head 10 does not require manual drive by the user, avoiding soiling the user's hands.

[0092] The connecting part 40 is a columnar structure located at one end of the gripping part 30. Preferably, the middle part of the connecting part 40 is a hollow receiving space for accommodating the transmission member 22. Preferably, the receiving space extends from the bottom center of the connecting part 40 toward the brush head 10 to form a positioning post 44. The positioning post 44 passes through the transmission member 22, allowing the transmission member 22 to slide up and down along the axial direction of the positioning post 44 to drive the rotating structure 101 to rotate. After passing through the transmission member 22, the positioning post 44 passes through the rotating structure 101 and is limited at the other end of the rotating structure 101 by a fixing part 45 to prevent the rotating structure 101 from detaching from the positioning post 44. In this example, the fixing part 45 is preferably a screw, and the head of the screw is larger than the width of the positioning post 44 so that a second reset member 46 can be provided between the part of the screw head extending out of the positioning post 44 and the top of the rotating structure 101, so that the second reset member 46 is sleeved on the positioning post. On 44, when the driving member 21 drives the transmission member 22 to move along the positioning post 44 toward the direction closer to the brush head 10, it will squeeze the rotating structure 101 to move toward the direction closer to the fixed part 45. As a result, the top of the rotating structure 101 will compress and store the second reset member 46. When the transmission member 22 moves away from the brush head 10, the squeezing force on the rotating structure 101 disappears. The rotating structure 101 will be reset by the reset force of the second reset member 46 and move away from the fixed part 45. That is, it drives the brush head 10 to reset and move upward along the positioning post 44 so that the limiting part 13 can move along the starting end 43a of the sixth guide surface 43 toward the ending end 43b and connect with the limiting mating part 41. Preferably, the second reset member 46 is a spring, which is easy to install and has a stable structure. It can be understood that the second reset member 46 can also be a tension spring, soft rubber, or other structure that can automatically recover after being deformed by pressure.

[0093] In one optional embodiment, a receiving groove 14 is provided between the brush head 10 and the rotating structure 101. The limiting part 13 is disposed in the receiving groove 14 and extends outward from the side wall of the rotating structure 101 to form a protrusion. The connecting part 40 has at least one side having a limiting fitting part 41 extending into the receiving groove 14 to cooperate with the limiting part 13. The limiting fitting part 41 is a groove that matches the protrusion. The receiving groove 14 can avoid and hide the fifth guide surface 42 and the sixth guide surface 43. The guide surface 43 makes the brush head 10 look better, and the matching method of the protrusion and the groove is simpler and more reliable, and it is also easier to process. In this example, the preferred receiving groove 14 is located between the brush head 10 and the rotating structure 101. In order to ensure that the brush head 10 and the connecting part 40 fit more tightly and the brush head 10 is fixed more stably and reliably, an abutting mating surface that matches the fifth guide surface 42 and the sixth guide surface 43 can be provided between two adjacent mating parts 211. The shape of the abutting mating surface is adapted to the shape of the fifth guide surface 42 and the sixth guide surface 43.

[0094] Understandably, the limiting part 13 and the limiting mating part 41 can be mated by means of snap-fit ​​or magnetic attraction.

[0095] In one optional embodiment, when the driving unit 20 is driven to rotate the brush head 10 around the central axis of the connecting part 40 by an angle α, the number of the limiting part 13 and / or the limiting mating part 41 is 360° / α, so that the brush head 10 can rotate one revolution around the connecting part 40 in one direction. In this example, the preferred rotation angle is 90°, then the number of limiting parts 13 and / or limiting mating parts 41 is 4. The 4 limiting parts 13 are evenly distributed on the periphery of the rotating structure 101, and the 4 limiting mating parts 41 are evenly distributed on the periphery of the connecting part 40 facing the end of the brush head 10. It can be understood that when the rotation angle is 120°, the number of limiting parts 13 and / or limiting mating parts 41 is 3.

[0096] In one optional embodiment, the cleaning brush has a first state and a second state. In the first state, the cleaning width of the brush head 10 is at its maximum, and in the second state, the cleaning width of the brush head 10 is at its minimum. When the driving part 20 is driven to move relative to the holding part 30 and / or the connecting part 40, it drives the brush head 10 to rotate around the central axis of the connecting part 40, so that the brush head 10 can switch between the first state and the second state. The two states correspond to different cleaning widths of the brush head 10, so that the user can choose the appropriate state according to the usage scenario, and the two states can be switched freely, making it more convenient for the user. In this example, preferably, when the brush head 10 is elongated, in the first state, the length direction of the brush head 10 is perpendicular to the holding part 30, that is, the overall shape of the cleaning brush is approximately "T" or "7"; in the second state, the length direction of the brush head 10 is parallel to the holding part 30, that is, the brush head 10 and the holding part 30 are on the same straight line, so as to clean narrow areas.

[0097] In one optional embodiment, the cleaning brush also has an intermediate state; when the driving part 20 moves from the initial position to the driving position relative to the gripping part 30, the cleaning brush enters the intermediate state from the first state; when the driving part 20 moves from the driving position to the initial position, the cleaning brush enters the second state from the intermediate state; and / or when the driving part 20 moves from the initial position to the driving position relative to the gripping part 30, the cleaning brush enters the intermediate state from the second state; when the driving part 20 moves from the driving position to the initial position, the cleaning brush enters the first state from the intermediate state.

[0098] The intermediate state is set. When entering the first or second state from the intermediate state, the drive unit 20 is synchronously reset from the drive position to the initial state. This allows the user to drive the drive unit 20 to rotate the brush head 10 the next time without requiring the user to perform any other separate reset action, resulting in a better user experience. The initial position of the drive unit 20 is the position of the drive unit 20 when the brush head 10 is not driven. The drive position is the maximum position where the drive unit 20 moves when it drives the brush head 10 to rotate. In this example, the drive unit 20 preferably has a push knob 215 at the end away from the brush head 10. The grip 30 has a push groove, and the push knob 215 can slide in the push groove. The end of the push groove away from the brush head 10 is the initial position, and the end of the push groove closer to the brush head 10 is the drive position. The user can push the push knob 215 from the initial position to the drive position. When the push knob 215 moves from the drive position to the initial position, in this example, the push knob 215 is automatically reset by the action of the first reset member 23. It can be understood that the user can also manually push the push knob 215 to reset it.

[0099] In one optional embodiment, in the intermediate state, the brush head 10 rotates by an angle β around the central axis of the connecting portion 40 to enter the first state or the second state, where 5°≤β≤30°. In this example, the brush head 10 rotates from the intermediate state to the first or second state to compensate for the rotation angle of the brush head 10 during the reset process of the drive member 21, so that the user can achieve continuous rotation at a preset angle. In this example, when the brush head 10 rotates from the first state to the second state, a preset specified rotation angle is used. When the push knob 215 moves from the initial position to the drive position, the brush head 10 rotates by an angle A when it rotates from the first state to the intermediate state. Then, β = preset angle - A. At this time, when the push knob 215 moves from the drive position to the initial position for reset, the brush head 10 rotates by an angle β so that the brush head 10 rotates enough to enter the second state. In this state, so that the user can drive the push knob 215 next time, so that the brush head 10 rotates from the second state to the first state. Taking the above example, when the brush head 10 rotates from the first state to the intermediate state, it is achieved by the user manually applying force to the drive component 21, that is, by the user manually pushing the push knob 215. When the brush head 10 rotates from the intermediate state to the second state, it is driven by the reset force of the second reset component 46. Since the reset force of the second reset component 46 is limited, the compensation angle β of the brush head 10 cannot be set too large. When β is too large, that is, exceeding 30°, long-term use will easily cause the second reset component 46 to fatigue and fail to reset. In this example, when the preset rotation angle of the brush head 10 is 90°, then β=15°. It can be understood that β can also be equal to any one of 5°, 10°, 20°, 25°, and 30°.

[0100] In one optional embodiment, the angle between the extending direction of the connecting portion 40 and the extending direction of the grip portion 30 is γ, wherein 90°≤γ<180°, so that there is a certain angle between the grip portion 30 and the surface to be cleaned, so that the user can grip the grip portion 30 for cleaning operations, which conforms to the user's operating habits. When γ<90°, the rotation of the brush head 10 will interfere with the grip portion 30 or the hand gripping the grip portion 30, affecting the use. When γ=180°, the grip portion 30 and the brush head 10 form a perpendicular angle. In this case, the brush head 10 cannot change its cleaning width when rotated at any angle. Only when 90°≤γ<180° can the brush head 10 be easily rotated by the drive unit 20 to adjust its cleaning width without interfering with the grip unit 30 or the hand holding the grip unit 30, resulting in a better user experience. After multiple tests, γ=120° is preferred in this example, as this angle is most ergonomic. Understandably, γ can also be equal to any of 100°, 135°, 150°, etc.

[0101] The movement of the cleaning brush, taking the transition of brush head 10 from the first state to the second state, with a preset angle of 90° and β=15° as an example:

[0102] In the first state, when the driving member 21 is driven to move towards the brush head 10, the protrusion at the end of the driving member 21 quickly enters the sliding groove 222, and the slider enters the sliding groove. As the driving member 21 gradually moves, it gradually squeezes the transmission member 22 towards the brush head 10. The first reset member 23 is in a compressed state, causing the rotating structure 101 to rotate. At the same time, the starting end 11a of the first guide surface 11 slides against the third guide surface 24 until the ending end 11b of the first guide surface 11 abuts against the third guide surface 24. At this time, the fourth guide surface 25 abuts against the second guide surface 12, and the limiting part 13 slides along the starting end 42a of the fifth guide surface 42 to the ending end 42b and enters the starting end 43a of the sixth guide surface 43. The second reset member 46 is in a compressed state, at which time the brush head 10 rotates synchronously by 75°. When the drive of the drive member 21 is released, the first reset member 23 resets, driving the drive member 21 to move away from the brush head 10 to return to its original position. At the same time, the compression of the rotating structure 101 is released. Under the reset force of the second reset member 46, the rotating structure 101 moves upward, so that the second guide surface 12 slides relative to the fourth guide surface 25 until the third guide surface 24 abuts against the starting end 11a of the first guide surface 11. At the same time, the limiting part 13 slides along the starting end 43a of the sixth guide surface 43 to the ending end 43b and enters the limiting mating part 41. At this time, the brush head 10 rotates synchronously by 15° to enter the second state.

[0103] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A cleaning brush, characterized in that, include: Brush head (10), the brush head (10) having different dimensions in the length direction and the width direction; The grip (30) has a connecting part (40) at one end, and the connecting part (40) is bent relative to the grip (30). The end of the connecting part (40) away from the grip (30) is connected to the brush head (10). A drive unit (20) is provided in the gripping part (30) and / or the connecting part (40), and the drive unit (20) is connected to the brush head (10) in a driving manner; When the drive unit (20) is driven to move relative to the grip unit (30) and / or the connecting part (40), it drives the brush head (10) to rotate around the central axis of the connecting part (40) to adjust the cleaning width of the brush head (10). The larger the cleaning width, the greater the maximum distance between the edge of the brush head (10) and the reference line. The reference line is the projection line of the length direction of the grip unit (30) on the rotation plane of the brush head (10).

2. A cleaning brush according to claim 1, characterized in that, The drive unit (20) includes a transmission member (22) and a drive member (21) that are connected by transmission. The transmission member (22) is disposed in the connecting part (40) and is connected to the brush head (10) by transmission. The drive member (21) is disposed in the gripping part (30) and / or the connecting part (40) and is adapted to drive the transmission member (22) to move in the axial direction of the connecting part (40) when the drive member (21) is driven to move. The movement of the transmission member (22) in the axial direction of the connecting part (40) drives the brush head (10) to rotate.

3. A cleaning brush according to claim 2, characterized in that, The driving member (21) is disposed on the gripping part (30), the transmission member (22) includes a sliding part (221), the driving member (21) is provided with a mating part (211), and the sliding part (221) and the mating part (211) are mated by an inclined surface; The driving member (21) moves along the length direction of the gripping part (30), and the mating part (211) presses the sliding part (221) through the inclined surface, so that the transmission member (22) moves along the axial direction of the connecting part (40).

4. A cleaning brush according to claim 3, characterized in that, The driving member (21) has a protrusion (212) at one end near the transmission member (22), and the mating part (211) is a sliding groove opened on both sides of the protrusion (212), the sliding groove being inclined to the axial direction of the connecting part (40); the transmission member (22) has a sliding groove (222) on the side away from the brush head (10), and the sliding part (221) is a slider provided on the side wall of the sliding groove (222). When the protrusion (212) When the slider is inserted into the sliding groove (222), the slider enters the sliding groove; the driving member (21) moves along the length direction of the gripping part (30), the slider slides along the sliding groove, the protrusion (212) slides along the sliding groove (222), the side wall of the sliding groove presses the slider, and the protrusion (212) presses the side wall of the sliding groove (222), so that the transmission member (22) moves along the axial direction of the connecting part (40); And / or the cleaning brush includes a first reset member (23), the drive member (21) is disposed in the grip portion (30), the first reset member (23) is disposed between the drive member (21) and the grip portion (30), and / or the first reset member (23) is disposed between the transmission member (22) and the connecting portion (40), adapted to reset the drive member (21) after being driven to move; And / or the sliding direction of the sliding part (221) and the mating part (211) is at an obtuse angle or a right angle with the moving direction of the driving member (21).

5. A cleaning brush according to any one of claims 1-4, characterized in that, The brush head (10) includes a rotating structure (101) which is connected to the driving part (20). The driving part (20) is driven to apply pressure to the rotating structure (101) in the direction of the central axis of the connecting part (40) to drive the rotating structure (101) to rotate around the central axis of the connecting part (40), thereby driving the brush head (10) to rotate.

6. A cleaning brush according to claim 5, characterized in that, The rotation direction of the brush head (10) is defined as the first direction. The rotating structure (101) is provided with a first guide structure on the side facing the drive part (20). The first guide structure has a starting end and a ending end in sequence along the opposite direction to the first direction, and the starting end and the ending end have a height difference. When the drive part (20) is driven to move along the axial direction of the connecting part (40), the drive part (20) presses against the first guide structure, so that the first guide structure moves from the starting end to the ending end to the driving part (20), thereby driving the rotating structure (101) to rotate.

7. A cleaning brush according to claim 6, characterized in that, The starting end is higher than the ending end, and the first guide structure includes a first guide surface (11) connecting the starting end and the ending end. The first guide surface (11) is a helical surface. When the driving part (20) is driven to move along the axial direction of the connecting part (40), the driving part (20) presses against the first guide surface (11) so that the first guide surface (11) moves from the starting end to the ending end to the driving part (20).

8. A cleaning brush according to claim 7, characterized in that, The rotating structure (101) has a plurality of first guide structures on the side facing the driving part (20), and a second guide surface (12) is provided between two adjacent first guide structures; the second guide surface (12) has a starting end and a ending end in sequence along the direction opposite to the first direction, and the starting end of the second guide surface (12) is lower than the ending end; the driving part (20) presses against the first guide structure, so that when the first guide structure moves from the starting end to the ending end, the driving part (20) abuts against the second guide surface (12), and when the driving part (20) slides along the starting end of the second guide surface (12) to pass the ending end of the second guide surface (12), the driving part (20) abuts against the starting end of another adjacent first guide structure.

9. A cleaning brush according to claim 8, characterized in that, The drive unit (20) has a third guide surface (24) at one end facing the brush head (10) that slides with the first guide structure. When the drive unit (20) is driven to move along the axial direction of the connecting part (40), the third guide surface (24) presses against the first guide structure and slides along the first guide structure.

10. A cleaning brush according to claim 9, characterized in that, The first guide structure includes a first guide surface (11), and the third guide surface (24) matches the shape of the first guide surface (11) so that when the first guide surface (11) slides relative to the third guide surface (24), the contact area between the first guide surface (11) and the third guide surface (24) gradually increases.

11. A cleaning brush according to claim 10, characterized in that, A fourth guide surface (25) is provided between two adjacent third guide surfaces (24); the third guide surface (24) is driven to press against the first guide surface (11), so that the first guide surface (11) moves from its starting end to its ending end to abut against the third guide surface (24), at which time the second guide surface (12) abuts against the fourth guide surface (25), and the fourth guide surface (25) slides along the starting end of the second guide surface (12) to pass the ending end of the second guide surface (12), so that the third guide surface (24) abuts against the starting end of another first guide surface (11).

12. A cleaning brush according to claim 11, characterized in that, The connecting part (40) has a plurality of limiting engagement parts (41) on the side facing the brush head (10). The brush head (10) includes a limiting part (13) that engages with the limiting engagement parts (41). There is a fifth guide surface (42) between two adjacent limiting engagement parts (41). The fifth guide surface (42) has a starting end and a ending end in sequence along the first direction. When the rotating structure (101) rotates around the central axis of the connecting part (40), it synchronously drives the limiting part (13) to slide along the starting end of the fifth guide surface (42) to the ending end. The limiting part (13) engages with the limiting engagement part (41) near the ending end of the fifth guide surface (42) to restrict the brush head (10) from rotating relative to the gripping part (30).

13. A cleaning brush according to claim 12, characterized in that, Between two adjacent limiting mating parts (41), there is a sixth guide surface (43) that communicates with the fifth guide surface (42). The sixth guide surface (43) has a starting end and a ending end in sequence along the first direction. The starting end of the sixth guide surface (43) is connected to the ending end of the fifth guide surface (42). The ending end of the sixth guide surface (43) is connected to the limiting mating part (41) near the ending end of the fifth guide surface (42). There is an included angle between the fifth guide surface (42) and the sixth guide surface (43). When the limiting part (13) slides to the end of the fifth guide surface (42) and enters the beginning of the sixth guide surface (43), the limiting part (13) slides along the beginning of the sixth guide surface (43) to the limiting mating part (41), and at the same time the fourth guide surface (25) slides along the beginning of the second guide surface (12) to the end of the second guide surface (12), so that the third guide surface (24) abuts against the beginning of another first guide surface (11).

14. A cleaning brush according to claim 13, characterized in that, The connecting part (40) includes a positioning post (44) and a fixing part (45). The positioning post (44) passes through the brush head (10) and is connected to the fixing part (45). A second reset member (46) is provided between the fixing part (45) and the brush head (10). When the limiting part (13) slides from the starting end of the fifth guide surface (42) to the ending end and enters the starting end of the sixth guide surface (43), the driving part (20) is driven to apply pressure to the rotating structure (101) in the central axial direction of the rotating structure (101) so that the brush head (10) moves away from the connecting part (40) and the second reset member (46) is in a compressed state. Under the force of the second reset member (46) restoring from the compressed state, the brush head (10) is driven to move toward the direction close to the connecting part (40), so that the limiting part (13) slides along the starting end of the sixth guide surface (43) to the ending end and engages with the limiting mating part (41).

15. A cleaning brush according to any one of claims 12-14, characterized in that, A receiving groove (14) is provided between the brush head (10) and the rotating structure (101). The limiting part (13) is provided in the receiving groove (14) and extends outward from the side wall of the rotating structure (101) to form a protrusion. The connecting part (40) has at least one side with a limiting fitting part (41) extending into the receiving groove (14) to cooperate with the limiting part (13). The limiting fitting part (41) is a groove that matches the protrusion.

16. A cleaning brush according to claim 15, characterized in that, When the drive unit (20) is driven to rotate the brush head (10) around the central axis of the connecting part (40) by an angle of α, the number of the limiting part (13) and / or the limiting mating part (41) is 360° / α.

17. A cleaning brush according to any one of claims 1-4, 6-8, 10-14, and 16, characterized in that, The cleaning brush has a first state and a second state. In the first state, the cleaning width of the brush head (10) is the largest, and in the second state, the cleaning width of the brush head (10) is the smallest. When the driving part (20) is driven to move relative to the holding part (30) and / or the connecting part (40), it drives the brush head (10) to rotate around the central axis of the connecting part (40) so that the brush head (10) can switch between the first state and the second state.

18. A cleaning brush according to claim 17, characterized in that, The cleaning brush also exists in an intermediate state; When the drive unit (20) moves from the initial position to the drive position relative to the gripping unit (30), the cleaning brush moves from the first state to the intermediate state. When the drive unit (20) moves from the drive position to the initial position, the cleaning brush moves from the intermediate state to the second state. When the drive unit (20) moves from the initial position to the drive position relative to the gripping unit (30), the cleaning brush moves from the second state to the intermediate state. When the drive unit (20) moves from the drive position to the initial position, the cleaning brush moves from the intermediate state to the first state.

19. A cleaning brush according to claim 18, characterized in that, In the intermediate state, the brush head (10) rotates by an angle β around the central axis of the connecting part (40) to enter the first state or the second state, wherein 5°≤β≤30°.

20. A cleaning brush according to any one of claims 1-4, 6-8, 10-14, 16, and 18-19, characterized in that, The angle between the extending direction of the connecting part (40) and the extending direction of the gripping part (30) is γ, wherein 90°≤γ<180°.

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