A cleaning brush

Abstract

The utility model discloses a kind of cleaning brushes, comprising: liquid storage bottle, bottom forms outlet, side wall has pressing area, the elastic deformation of this pressing area is greater than the elastic deformation of the rest area of liquid storage bottle side wall;Connecting piece, with liquid storage bottle detachably connected, it at least has the one-way drain valve of corresponding outlet setting, and the bristle of setting in the one-way drain valve periphery;External force is applied in pressing area, one-way drain valve opens under the action of air pressure, to make the liquid in liquid storage bottle discharge through outlet, one-way drain valve;Stop applying external force, one-way drain valve automatically closes.The utility model cleaning brush is set in pressing area in liquid storage bottle side wall, by the deformation of external force applied in pressing area in the process of brushing and washing, the one-way discharge of liquid in liquid storage bottle can be realized, and in the process of cleaning, the liquid in liquid storage bottle can be extruded and discharged at any time by external force applied in pressing area, without changing holding gesture, cleaning is more convenient, and cleaning efficiency is high;Overall appearance is small and exquisite, convenient to use.

Description

Technical Field

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

[0002] Chinese patent CN201435960U discloses a "Cleaning Brush Capable of Carrying Detergent," which includes a brush body, a connecting body, and a liquid reservoir. The brush body includes a brush base plate with bristles, and the brush base plate also has a limiting device connected to the connecting body. The connecting body includes a fastening device that cooperates with the limiting device of the brush base plate. The connecting body also includes a positioning and fixing device and a liquid dispensing control device connected to the liquid reservoir. The liquid reservoir includes a positioning and fixing device and a liquid dispensing control device that cooperate with it. While it is convenient for repeated, pollution-free use, the steps of spraying detergent and cleaning objects with the brush body cannot be performed simultaneously; they must be done sequentially, making operation relatively cumbersome. Furthermore, when carrying detergent and cleaning with the brush body, the overall structure is not convenient for the operator to hold, resulting in a poor user experience. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a cleaning brush that can achieve one-way discharge of liquid in the storage bottle by applying external force to the pressing area. It is convenient to use and has high cleaning efficiency.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a cleaning brush, comprising:

[0005] The liquid storage bottle has a liquid outlet at the bottom and a pressing area on the side wall. The elastic deformation of the pressing area is greater than that of the rest of the side wall of the liquid storage bottle.

[0006] The connector is detachably connected to the liquid storage bottle and has at least a one-way drain valve corresponding to the liquid outlet and bristles disposed around the one-way drain valve.

[0007] When external force is applied to the pressing area, the one-way drain valve opens under air pressure, allowing the liquid in the storage bottle to be discharged through the outlet and the one-way drain valve; when the external force is stopped, the one-way drain valve closes automatically.

[0008] The cleaning brush of this utility model has a pressing area set on the side wall of the liquid storage bottle. During the brushing process, the liquid in the storage bottle can be discharged in one direction by applying external force to the pressing area to cause deformation. Moreover, the liquid in the storage bottle can be squeezed out at any time during the cleaning process without changing the hand gesture of holding the cleaning brush, making cleaning more convenient and efficient.

[0009] Furthermore, the pressing area is located on the first and / or second sidewall of the storage bottle, and the plane of the first and / or second sidewall is approximately in the same direction as the extension of the bristles. The pressing area, located on the first and second sidewalls approximately in the same direction as the bristles, allows for the application of an external force approximately perpendicular to the bristle direction during the washing process. This facilitates the extrusion of cleaning liquid from the storage bottle. Moreover, the entire action of applying external force through extrusion conforms to the operator's usage habits, making operation simple. The extruded cleaning liquid can be directly applied to clothing, resulting in better cleaning performance.

[0010] Furthermore, it also includes a cover that fits over the outside of the connector. The connector has a protruding boss on its surface corresponding to the pressing area. When the cover is closed to cover the brush bristles and the one-way drain valve, the surface of the boss is exposed on the outside of the cover. The boss allows the cover to be detached from the connector by placing both hands on the boss and the cover respectively, applying force in opposite directions, thus avoiding the risk of the hands touching the storage bottle and causing liquid to leak out.

[0011] Furthermore, the top surface of the liquid storage bottle is an arc surface, and the outer edge of the pressing area is an arc surface parallel to the contour of the top surface of the liquid storage bottle. The arc surface of the top surface of the liquid storage bottle makes it easier for the user to hold and use, while the arc surface of the outer edge 121 of the pressing area 12 increases the controllability of the liquid dispensing from the pressing area 12, ensuring that the amount of liquid dispensed with each squeeze is approximately equal and within a certain range. Moreover, it is relatively easy to manufacture and more convenient to use.

[0012] Furthermore, the sidewall of the connector forms an arc surface that extends in the same direction as the top surface of the liquid storage bottle. When using the cleaning brush, the liquid storage bottle and the connector together form a grip for the user to hold. The outer contour of the liquid storage bottle and the connector after assembly is rounded, with smooth overall lines. When the user holds the liquid storage bottle and the connector, the rounded outer contour fits the palm better, making the grip more comfortable, the use more convenient, and the user experience better.

[0013] Furthermore, the sidewall of the cap is an arc surface that smoothly transitions to the top surface of the liquid storage bottle, and the bottom surface of the cap forms a horizontal placement surface. The overall structure is aesthetically pleasing and attracts more consumer attention. The horizontal placement surface of the bottom surface of the cap makes it easy to place the cleaning brush on a flat surface for convenient storage.

[0014] Furthermore, the bottom of the liquid storage bottle has a neck, the liquid outlet is located at the lower end of the neck, and the connector forms a mounting base for the neck to extend into and a mounting cavity for planting bristles. A locking structure is formed between the inner wall of the mounting base and the outer wall of the neck. The locking structure on the inner wall of the mounting base and the outer wall of the neck facilitates the detachable connection of the liquid storage bottle and the connector, making the structure easy to manufacture and ensuring a stable connection.

[0015] Furthermore, the locking structure includes a locking groove and a locking protrusion located between the inner wall of the mounting base and the outer wall of the neck. The locking groove includes an axially extending positioning slot, a circumferentially inclined guide groove, and a locking recess. The locking protrusion includes a body, a locking protrusion located on the end face of the body, and an inclined guide surface. After the body is axially inserted into the positioning slot, the inclined guide surface rotates circumferentially against the guide groove until the locking protrusion falls into the locking recess, thereby achieving the assembly connection of the liquid storage bottle and the connector. The locking structure is simple and effective in design. The installation of the liquid storage bottle and the connector can be achieved through vertical insertion and circumferential rotation. The operation is simple and convenient, and the locking structure is stable, preventing liquid leakage from the liquid storage bottle after locking.

[0016] Furthermore, the one-way drain valve is a cross-shaped silicone valve, which is detachably connected to the connector via an assembly; the cap extends inward to form a stop post, which abuts against the one-way drain valve. The one-way drain valve is made from simple materials, reducing the manufacturing cost of the cleaning brush; the stop post effectively prevents liquid in the storage bottle from being accidentally squeezed out.

[0017] Furthermore, the ends of the brush bristles protrude from the one-way drain valve; the reservoir, connector, and cap are coaxially connected from top to bottom. The one-way drain valve is blocked by the brush bristles and will not come into contact with the stains, preventing the stains and washing water from being drawn back into the reservoir, resulting in higher cleanliness; the reservoir, connector, and cap are coaxially connected, with a simple overall structure, compact size, and convenient use and carrying, making it particularly suitable for cleaning small items such as underwear. The user holds the reservoir and connector as a whole, allowing for better brushing force, higher cleaning efficiency, and better cleaning results.

[0018] The beneficial effects of this utility model are: the cleaning brush has a pressing area on the side wall of the liquid storage bottle. During the brushing process, external force is applied to the pressing area to deform it, which can realize the one-way discharge of liquid in the liquid storage bottle. Moreover, during the cleaning process, external force can be applied to the pressing area at any time to squeeze out the liquid in the liquid storage bottle without changing the hand gesture of holding the cleaning brush, making cleaning more convenient and efficient. The overall shape is small and easy for the operator to hold and use, especially suitable for cleaning small-volume clothing such as underwear, and easy to carry. Attached Figure Description

[0019] Figure 1 This invention provides an exploded view of the cleaning brush. Figure 1 .

[0020] Figure 2 This invention provides an exploded view of the cleaning brush. Figure 2 .

[0021] Figure 3 A perspective view of the cleaning brush provided for this utility model.

[0022] Figure 4 This utility model provides a cleaning brush for removing the cover in three dimensions. Figure 1 .

[0023] Figure 5 This utility model provides a cleaning brush for removing the cover in three dimensions. Figure 2 .

[0024] Figure 6 A cross-sectional view of the cleaning brush is provided for this utility model.

[0025] Figure 7 A perspective view showing the fit between the connector and the cover body for this utility model.

[0026] Figure 8 A perspective view of the liquid storage bottle is provided for this utility model.

[0027] Figure 9 A perspective view showing the assembly of the liquid storage bottle and the connector for this utility model.

[0028] Among them, 1-liquid storage bottle, 11-liquid outlet, 12-pressing area, 121-outer edge of pressing area, 13-first side wall, 14-second side wall, 15-top surface of liquid storage bottle, 16-neck, 2-connector, 21-one-way drain valve, 22-brush bristles, 23-protrusion, 24-connector side wall, 26-mounting base, 261-sealing connection ring, 27-mounting cavity, 28-assembly, 3-cover, 31-cover side wall, 32-horizontal placement surface, 33-stop post, 41-locking groove, 411-positioning slot, 412-guide groove, 413-locking groove, 42-locking protrusion, 421-body, 422-locking protrusion, 423-inclined guide surface. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort should fall within the scope of protection of the present invention.

[0030] like Figures 1-3 As shown, a cleaning brush includes, from top to bottom, a liquid storage bottle 1, a connector 2, and a cap 3, and the three are coaxially connected. Specifically, when the three are assembled and connected, the central axis of the liquid storage bottle 1, the central axis of the connector 2, and the central axis of the cap 3 are on the same straight line.

[0031] The bottom of the liquid storage bottle 1 has a downwardly protruding neck 16, and the lower end of the neck 16 forms a liquid outlet 11. The side wall of the liquid storage bottle 1 has a pressing area 12. The elastic deformation of the pressing area 12 is greater than that of the other areas of the side wall of the liquid storage bottle 1. In other words, when the same amount of external force is applied to the pressing area 12 and the other areas of the side wall of the liquid storage bottle 1, the deformation of the pressing area 12 is greater than that of the other areas. Or, the pressing area 12 is softer than the other areas of the liquid storage bottle 1. Therefore, only when an external force is applied to the pressing area 12 can the liquid storage bottle 1 deform and squeeze out the internal liquid. When an external force is applied to the other areas of the side wall of the liquid storage bottle 1, no deformation will occur, or even if deformation occurs, the internal liquid will not be squeezed out.

[0032] The connector 2 is detachably connected to the liquid storage bottle 1, specifically connected to the side where the neck 16 is located. The connector 2 is provided with a one-way drain valve 21 at the corresponding liquid outlet 11 position, and bristles 22 are provided around the one-way drain valve 21.

[0033] When an external force is applied to the pressing area 12, under the action of the gas pressure inside the liquid storage bottle 1, or under the combined action of gas pressure and liquid gravity, the one-way drain valve 21 opens, allowing the liquid inside the liquid storage bottle 1 to be discharged through the outlet 11 and the one-way drain valve 21. At this time, deep cleaning can be performed with the help of the brush bristles 22. Once the external force is stopped, that is, when there is no downward gas pressure squeezing the liquid inside the liquid storage bottle 1, the one-way drain valve 21 automatically closes, so that the liquid inside the liquid storage bottle 1 will not be discharged.

[0034] In the above structure, the specific location of the pressing area 12 is not limited. The pressing area 12 can be set on the side wall of the liquid storage bottle 1 or on the top wall. In this embodiment, the pressing area 12 is set on the first side wall 13 and the second side wall 14 of the liquid storage bottle 1. The planes of the first side wall 13 and the second side wall 14 are approximately in the same direction as the length extension of the bristles 22. It is worth noting here that... Figure 4 Taking the direction shown as an example, the first sidewall 13 and the second sidewall 14 extend vertically, so that when using a cleaning brush, external force can be applied to both sides of the reservoir 1 to squeeze the pressing area 12 simultaneously, and the user's hand does not need to change the grip posture to complete the squeezing action, making it convenient to use. Of course, in other embodiments, the pressing area 12 may be provided only on the first sidewall 13, or only on the second sidewall 14.

[0035] The specific shape of the pressing area 12 is not limited. In this embodiment, the top surface 15 of the liquid storage bottle 1 is an arc surface, and the outer edge 121 of the pressing area 12 is an arc surface parallel to the contour of the top surface of the liquid storage bottle 1. The arc surface of the top surface 15 of the liquid storage bottle 1 makes it convenient for the user to hold and use, while the arc surface of the outer edge 121 of the pressing area 12 increases the controllability of the liquid dispensing from the pressing area 12, so that the amount of liquid dispensed each time is approximately equal and within a certain range. Moreover, it is relatively easy to manufacture and more convenient to use.

[0036] like Figure 1 , Figure 2 , Figure 5 As shown, the side wall 24 of the connector 2 forms an arc surface that extends in the same direction as the top surface of the liquid bottle 1. Thus, when the cleaning brush is used, the liquid bottle 1 and the connector 2 are connected to form a grip for the user to hold. In other words, the outer contour of the liquid bottle 1 and the connector 2 after being assembled has a rounded transition and smooth lines. When the user holds the liquid bottle 1 and the connector 2, the rounded outer contour matches the palm better, making it more comfortable for the user to hold, more convenient to use, and providing a better user experience.

[0037] The cover 3 covers the outside of the connector 2 to shield the brush bristles 22 and the one-way drain valve 21. A protruding boss 23 is provided on the connector 2 at the position corresponding to the pressing area 12. Figure 5 As shown, the protrusion 23 protrudes outward relative to the rest of the sidewall of the connector 2, and the width of the protrusion 23 is approximately equal to the width of the bottom of the pressing area 12. When the cover 3 is closed, the surface of the protrusion 23 is exposed outside the cover 3, that is, the protrusion 23 is not covered by the cover 3, but the area of ​​the cover 3 corresponding to the protrusion 23 is missing. Therefore, when it is necessary to detach the cover 3 from the connector 2, one can touch the protrusion 23 and the cover 3 with both hands respectively, and apply force in a direction away from each other, avoiding the situation where the hands have nowhere to rest and touch the liquid storage bottle 1, causing the liquid in the liquid storage bottle 1 to be discharged.

[0038] To ensure the simplicity and aesthetics of the overall structure, the thickness of the cover 3 is approximately equal to the height of the boss 23, so that when the cover 3 is fitted over the outside of the connector 2, its outer surface is flush with the outer surface of the boss 23. Furthermore, the sidewall 31 of the cover 3 is an arc surface that smoothly transitions to the top surface of the liquid storage bottle 1, and the outer surface of the cover 3 can also be flush with the outer surface of the liquid storage bottle 1. Therefore, when the cover 3, connector 2, and liquid storage bottle 1 are assembled, the overall structure resembles a disc. A horizontal placement surface 32 is formed on the bottom surface of the cover 3, such as... Figure 1 , Figure 6 As shown, this allows the cleaning brush to be placed on a flat surface for easy storage.

[0039] like Figure 2 , Figure 7 , Figure 9As shown, the connector 2 has a mounting base 26 into which the neck 16 extends, and a mounting cavity 27 for planting the bristles 22. The mounting cavity 27 facilitates the fixed assembly of the bristles 22. A locking structure is formed between the inner wall of the mounting base 26 and the outer wall of the neck 16, which facilitates the detachable connection between the liquid storage bottle 1 and the connector 2.

[0040] Specifically, such as Figures 7-9 As shown, the locking structure includes a locking groove 41 and a locking protrusion 42 disposed between the inner wall of the mounting base 26 and the outer wall of the neck 16. In this embodiment, the locking groove 41 is disposed on the inner wall of the mounting base 26 and the locking protrusion 42 is disposed on the outer wall of the neck 16. Of course, in other embodiments, the positions of the two can be interchanged, and no specific limitation is made.

[0041] like Figure 7 , Figure 9 As shown, the locking groove 41 includes an axially extending positioning slot 411, a circumferentially inclined guide groove 412, and a locking recess 413. Here, axial refers to the direction of the vertical central axis when the cleaning brush is normally placed horizontally, circumferential refers to the direction around the inner wall of the hollow columnar mounting base 26, and circumferentially inclined means that the guide groove 412 is inclined from top to bottom in a direction away from the positioning slot 411. The distance between the side wall of the guide groove 412 and the bottom of the mounting base 26 is approximately equal to the axial height of the locking protrusion 42. The locking recess 413 is an arc-shaped groove structure formed by an upward indentation from the side wall of the guide groove 412. Furthermore, the guide groove 412 is formed on one side of the positioning slot 411, and the other side extends vertically downward, thereby ensuring that when the locking groove 41 and the locking protrusion 42 are assembled, they can only move relative to each other in one direction, reducing the assembly difficulty.

[0042] like Figure 8 As shown, the locking protrusion 42 includes a body 421, a locking protrusion 422 disposed on the end face of the body 421, and an inclined guide surface 423. The body 421 protrudes from the outer wall of the neck 16 and extends in a vertical direction, and the circumferential width of the body 421 is approximately equal to the circumferential width of the positioning slot 411. The locking protrusion 422 is located on the top surface of the body 421, and its size and shape are adapted to the locking groove 413. The inclined guide surface 423 is located at the corner of the top surface and the side surface of the body 421, and it extends inclinedly from bottom to top towards the locking protrusion 422. Specifically, the inclined guide surface 423 has the same inclined direction and inclined angle as the guide groove 412.

[0043] When assembling the liquid storage bottle 1 and the connector 2, the neck 16 is aligned with the mounting base 26, and the body 421 is axially inserted into the positioning slot 411. At this time, the liquid storage bottle 1 and the connector 2 are at a certain angle. Then, the inclined guide surface 423 rotates circumferentially against the guide groove 412 until the locking protrusion 422 falls into the locking groove 413, thereby realizing the assembly connection of the liquid storage bottle 1 and the connector 2. At this time, the liquid storage bottle 1 and the connector 2 are completely aligned vertically, and the bottom surface of the liquid storage bottle 1 abuts against the upper surface of the mounting base 26.

[0044] When it is necessary to remove the liquid storage bottle 1 from the connector 2, simply apply external force to rotate it in the opposite direction and then pull it out axially. The operation is convenient.

[0045] In this embodiment, the one-way drain valve 21 is a cross-shaped silicone valve, a commercially available product. It is detachably connected to the bottom of the mounting base 26 of the connector 2 via the fitting 28. Specifically, as shown... Figure 6 As shown, the outer ring of the one-way drain valve 21 forms a sealing ring structure, and the outer edge of the hollow portion of the mounting base 26 forms a sealing connecting ring 261. The sealing ring structure of the one-way drain valve 21 is sealed and fastened to the sealing connecting ring 261. At the same time, the fitting 28 is a sealing plug structure, which is detachably installed in the hollow portion of the mounting base 26 and presses the one-way drain valve 21 towards the storage bottle 1 to prevent it from detaching. The ends of the bristles 22 protrude from the one-way drain valve 21, thereby preventing water from being drawn upwards into the storage bottle 1 when the cleaning liquid is squeezed out and deep cleaning is performed using the bristles 22, ensuring the purity of the cleaning liquid in the storage bottle 1.

[0046] To prevent the liquid in the storage bottle 1 from being accidentally squeezed out when the cleaning fluid is not needed, a stop post 33 is formed by extending upward from the bottom of the cap 3. The stop post 33 abuts against the outer ring of the one-way drain valve 21, so that even if an external force is applied to the pressing area 12, if the external force is not large enough to generate sufficient air pressure, the one-way drain valve 21 will not open, thus preventing the liquid from being discharged. In other words, even if an external force opens the one-way drain valve 21, the amount of liquid squeezed out will not be too large.

[0047] The cleaning brush of this utility model can be used to clean underwear. When using it, hold the protrusion 23 and the cover 3 with both hands respectively, and apply external force in a direction away from each other to detach the cover 3 from the connector 2. Then apply external force to the pressing area 12 so that the cleaning liquid in the storage bottle 1 is discharged through the one-way drain valve 21 onto the underwear to be cleaned. Then hold the remaining side wall of the storage bottle 1 and the connector 2 with one hand and use the brush bristles 22 to clean the underwear. During the brushing process, the cleaning liquid can be squeezed out at any time by applying external force to the pressing area 12, which is convenient to use. Since the ends of the brush bristles protrude from the one-way drain valve 21, the one-way drain valve 21 is not easy to come into contact with the stains during use, and the stains and water after washing will not be sucked back into the storage bottle 1.

[0048] The above specific embodiments are used to explain and illustrate the present utility model, and are not intended to limit the present utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims shall fall within the protection scope of the present utility model.

Claims

1. A cleaning brush, characterized in that, include: The liquid storage bottle (1) has an outlet (11) at the bottom and a pressing area (12) on the side wall. The elastic deformation of the pressing area (12) is greater than that of the rest of the side wall of the liquid storage bottle (1). The connector (2) is detachably connected to the liquid storage bottle (1), and has at least a one-way drain valve (21) corresponding to the liquid outlet (11) and a brush (22) disposed around the one-way drain valve (21). When an external force is applied to the pressing area (12), the one-way drain valve (21) opens under air pressure, so that the liquid in the storage bottle (1) is discharged through the outlet (11) and the one-way drain valve (21); when the external force is stopped, the one-way drain valve (21) closes automatically.

2. The cleaning brush according to claim 1, characterized in that: The pressing area (12) is located on the first sidewall (13) and / or the second sidewall (14) of the liquid storage bottle (1), and the plane of the first sidewall (13) and / or the second sidewall (14) is approximately the same as the extension direction of the bristles (22).

3. The cleaning brush according to claim 1 or 2, characterized in that: It also includes a cover (3) that covers the outside of the connector (2), the connector (2) having a protrusion (23) protruding from its surface corresponding to the pressing area (12), the surface of the protrusion (23) being exposed to the outside of the cover (3) when the cover (3) is closed to cover the brush (22) and the one-way drain valve (21).

4. The cleaning brush according to claim 3, characterized in that: The top surface (15) of the liquid storage bottle (1) is an arc surface, and the outer edge (121) of the pressing area (12) is an arc surface parallel to the outline of the top surface of the liquid storage bottle (1).

5. The cleaning brush according to claim 4, characterized in that: The sidewall (24) of the connector (2) forms an arc surface with the same extension trend as the top surface of the liquid storage bottle (1). When using the cleaning brush, the liquid storage bottle (1) and the connector (2) together form a grip for the user to hold.

6. The cleaning brush according to claim 3, characterized in that: The side wall (31) of the cover (3) is an arc surface that smoothly transitions to the top surface of the liquid storage bottle (1), and the bottom surface of the cover (3) forms a horizontal placement surface (32).

7. The cleaning brush according to claim 1, characterized in that: The liquid storage bottle (1) has a neck (16) at the bottom, the liquid outlet (11) is located at the lower end of the neck, the connector (2) has a mounting base (26) for the neck (16) to extend into, and a mounting cavity (27) for planting bristles (22), and a locking structure is formed between the inner wall of the mounting base (26) and the outer wall of the neck (16).

8. The cleaning brush according to claim 7, characterized in that: The locking structure includes a locking groove (41) and a locking protrusion (42) located between the inner wall of the mounting base (26) and the outer wall of the neck (16). The locking groove (41) includes an axially extending positioning slot (411), a circumferentially inclined guide groove (412), and a locking groove (413). The locking protrusion (42) includes a body (421), a locking protrusion (422) located on the end face of the body (421), and an inclined guide surface (423). After the body (421) is axially inserted into the positioning slot (411), the inclined guide surface (423) rotates circumferentially against the guide groove (412) until the locking protrusion (422) falls into the locking groove (413) to achieve the assembly connection of the liquid storage bottle (1) and the connector (2).

9. The cleaning brush according to claim 3, characterized in that: The one-way drain valve (21) is a cross silicone valve, which is detachably connected to the connector (2) via the fitting (28); the cover (3) extends inward to form a stop (33), which abuts against the one-way drain valve (21).

10. The cleaning brush according to claim 3, characterized in that: The ends of the bristles (22) protrude from the one-way drain valve (21); the liquid storage bottle (1), connector (2) and cap (3) are coaxially connected from top to bottom.

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