A cleaning brush

Abstract

The utility model provides a kind of cleaning brush, comprising: handle, for hollow structure and form the containing cavity for containing cleaning fluid in inside, the both ends of containing cavity are formed front connecting end and rear connecting end respectively, the side wall of handle is equipped with annular groove, the side wall of annular groove is equipped with hole body, hole body is communicated containing cavity and is set up to upwards;Brush head, detachably installed in front connecting end, the bottom surface of brush head is equipped with bristle and is used for the cross silicone valve of discharge cleaning fluid;Tail cover, detachably installed in rear connecting end;Rubber sleeve, for cylindrical and set in the annular groove, so that containing cavity forms a sealed cavity, the inner wall of rubber sleeve at hole body is equipped with thickened layer and forms pressing part;When pressing the pressing part, the volume in the containing cavity can be reduced and cleaning fluid is squeezed out from the cross silicone valve.The utility model discloses cleaning brush, simple structure, low in cost, convenient to use, can accurately control cleaning fluid release and brush head is replaced easily, and use effect is good.

Description

Technical Field

[0001] This utility model relates to a brush, and more particularly to a cleaning brush. Background Technology

[0002] Cleaning brushes are common cleaning tools used in daily life, widely applied to cleaning kitchens, bathrooms, tableware, furniture, and other items. Traditional cleaning brushes typically consist of a handle and a brush head. To use them, the brush head needs to be dipped in cleaning solution or detergent before scrubbing. This method suffers from problems such as wasted cleaning solution, inconvenience, and low cleaning efficiency.

[0003] To address these issues, some cleaning brushes with liquid storage functions have emerged on the market, capable of automatically or manually releasing cleaning fluid during the cleaning process. However, existing liquid-storage cleaning brushes are complex in structure, expensive, inconvenient to operate, lack precise control over the release of cleaning fluid, and are difficult to replace, thus affecting the user experience. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a cleaning brush that is simple in structure, low in cost, easy to use, can accurately control the release of cleaning fluid, and has an easy-to-replace brush head.

[0005] This utility model provides a cleaning brush, which includes: The handle 1 has a hollow structure and forms a cavity inside for holding cleaning fluid. The two ends of the cavity are open and serve as an inlet and an outlet, respectively. The inlet and outlet are threaded and form a front connection end and a rear connection end, respectively. The side wall of the handle 1 has an annular groove 111 and the side wall of the annular groove 111 has a hole 110. The hole 110 communicates with the cavity and is facing upward. The brush head 3 is detachably mounted on the front connecting end. The bottom surface of the brush head 3 is provided with bristles for cleaning and a cross silicone valve 41 for discharging cleaning fluid. Tail cap 2 is detachably installed on the rear connecting end; The rubber sleeve 13 is cylindrical and is fitted inside the annular groove 111, so that the receiving cavity forms a sealed cavity. The inner wall of the rubber sleeve 13 located at the hole 110 is provided with a thickened layer 131 and forms a pressing part. When the pressing part is pressed, the volume inside the receiving cavity is reduced and the cleaning fluid is squeezed out from the cross silicone valve 41.

[0006] Furthermore, the handle 1 includes a cylindrical handle body 11 and a hemispherical housing 12 disposed at the front end of the handle body 11. The annular groove 111 is disposed on the side wall of the handle body 11. The rear end of the handle body 11 forms the rear connecting end, and the lower end of the housing 12 is open and forms the front connecting end.

[0007] Furthermore, the axis of the handle body 11 is inclined to the axis of the housing 12.

[0008] Furthermore, the angle between the axis of the handle body 11 and the axis of the housing 12 is greater than or equal to 100 degrees and less than or equal to 130 degrees.

[0009] Furthermore, the front end of the handle body 11 gradually narrows and connects to the housing 12.

[0010] Furthermore, the end of the tail cap 2 is provided with a hook 21.

[0011] Furthermore, the outer wall of the rubber sleeve 13 is flush with the outer wall of the handle 1.

[0012] Furthermore, the hole 110 is racetrack-shaped or elliptical, and its major axis is parallel to the length direction of the handle 1.

[0013] Furthermore, the handle 1 is made of a transparent material.

[0014] Furthermore, the brush head 3 has a drain hole 30 in the center. The drain hole 30 is a stepped hole with a larger upper end and a smaller lower end, and has an upward mounting surface. The cross silicone valve 41 is mounted on the mounting surface and is pressed and fixed by a retaining ring 42.

[0015] Furthermore, the drain hole 30 includes an upper hole 301 and a lower hole 302 arranged sequentially from top to bottom. The inner side of the lower hole 302 extends axially upward to form a mounting portion 31, and the end face of the mounting portion 31 forms the mounting surface. An annular groove 32 is formed on the inner wall of the upper hole 301. The cross silicone valve 41 includes a ring body 413 that can contact the mounting surface. The inner side of the ring body 413 extends axially upward to form a cylindrical connecting portion 411, and the end of the connecting portion 411 extends radially inward and is sealed. A sealing surface 412 is formed, and a cross slit 4120 is provided on the sealing surface 412; the outer side of the annular body 413 extends upward axially to form a limiting part 414; the retaining ring 42 includes a cylindrical retaining ring body 421 that can be fitted into the upper hole 301, the lower end face of the retaining ring body 421 serves as a pressing surface, and an annular receiving groove 423 is provided on the pressing surface to accommodate the insertion of the limiting part 414; the outer wall of the retaining ring body 421 is provided with a snap-fit ​​part 422 that can snap into the annular snap groove 32 and achieve fixation.

[0016] This utility model cleaning brush has a simple structure, low cost, is easy to use, can accurately control the release of cleaning fluid, and the brush head is easy to replace, resulting in good performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the cleaning brush of this utility model; Figure 2 This is a cross-sectional view of the cleaning brush of this utility model; Figure 3 This is an exploded view of the cleaning brush of this utility model; Figure 4 This is a schematic diagram of the handle of the cleaning brush of this utility model; Figure 5 This is a schematic diagram showing the installation of the rubber sleeve of the cleaning brush of this utility model; Figure 6 This is a cross-sectional view of the handle body of the cleaning brush of this utility model; Figure 7 This is a cross-sectional view of the rubber sleeve of the cleaning brush of this utility model; Figure 8 This is a cross-sectional view of the brush head of the cleaning brush of this utility model; Figure 9 This is a schematic diagram showing the installation of the cross-shaped silicone valve of the cleaning brush of this utility model. Figure 10 This is a schematic diagram of the drainage hole of the cleaning brush of this utility model; Figure 11 for Figure 10 Enlarged view of section A in the middle; Figure 12 This is a cross-sectional view of the cross-shaped silicone valve of the cleaning brush of this utility model. Figure 13 This is a cross-sectional view of the retaining ring of the cleaning brush of this utility model.

[0018] In the diagram: 1. Handle, 11. Handle body, 12. Housing, 13. Rubber sleeve, 2. Tail cap, 21. Hook, 3. Brush head, 42. Snap ring, 110. Hole, 111. Annular groove, 131. Thickened layer, 30. Drain hole, 301. Upper hole, 302. Lower hole, 31. Mounting part, 32. Annular groove, 41. Cross silicone valve, 411. Connecting part, 412. Sealing surface, 413. Ring body, 414. Limiting part, 421. Snap ring body, 422. Snap-fit ​​part, 423. Annular receiving groove. Detailed Implementation

[0019] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] See Figures 1-13This utility model provides a cleaning brush, which includes a handle 1, a brush head 3, a tail cap 2, and a rubber sleeve 13.

[0021] The handle 1 is the main body and has a hollow structure, which forms a cavity inside. This cavity is used to hold cleaning fluid. The two ends of the cavity are open, serving as the inlet and outlet, respectively. The inlet is used to pour in the cleaning fluid, and the outlet is used to discharge the cleaning fluid during cleaning. Threads are provided on both the inlet and outlet to form the front and rear connection ends, respectively. An annular groove 111 is provided on the side wall of the handle 1, and a hole 110 is provided on the side wall of the annular groove 111. The hole 110 is connected to the cavity and faces upward. When held in the hand, the hole is located near the thumb.

[0022] The brush head 3 is detachably installed on the front connecting end by threads. The bottom surface of the brush head 3 is provided with bristles and a cross silicone valve 41. The bristles are used for cleaning, and the cross silicone valve 41 is used for discharging cleaning fluid. In this embodiment, the cross silicone valve 41 is located in the middle position of the brush head 3.

[0023] The tail cap 2 is detachably installed on the rear connection end by threads. When it is necessary to add cleaning fluid, simply open the tail cap.

[0024] A sealing ring is provided between the brush head 3, the tail cap 2 and the handle 1 to achieve a sealed connection and prevent leakage.

[0025] The rubber sleeve 13 is cylindrical and made of rubber, and is elastic. The rubber sleeve 13 is interference-fitted into the annular groove 111 and tightly wraps the annular groove 111, so that the receiving cavity forms a sealed cavity. The inner wall of the rubber sleeve 13 located at the hole 110 is provided with a thickened layer 131 to form a pressing part.

[0026] When the pressing part is pressed, it can cause the position to move downward, that is, deform into the receiving cavity, reduce the volume of the receiving cavity, and thus make the internal pressure higher than the external atmospheric pressure, thereby squeezing the cleaning fluid out of the cross silicone valve 41. When the pressing part is released, the position returns to its original position under the action of elasticity, which increases the volume of the receiving cavity and makes the internal pressure lower than the external atmospheric pressure. This allows air to enter the receiving cavity through the cross silicone valve 41, achieving internal and external pressure balance. The cross silicone valve 41 can prevent the cleaning fluid in the receiving cavity from leaking out.

[0027] The hollow handle forms a receiving cavity that can directly store cleaning fluid without the need for an additional container, resulting in an integrated structure. Through a combination of annular grooves, a rubber sleeve, and a perforated body, the functions of fluid storage, sealing, and dispensing via press are integrated into the handle, simplifying the overall structure and reducing the number of parts. The rubber sleeve is made of elastic material, with a thickened inner wall forming the pressing part. When the thumb presses down, pressure is applied to the receiving cavity through the perforated body, squeezing out the cleaning fluid through volume change, eliminating the need for manual pouring or squeezing of the bottle. After releasing, the rubber sleeve automatically resets, restoring the volume. Combined with the one-way air intake design of the cross-shaped silicone valve, pressure balance is achieved, ensuring smooth subsequent presses. The dispensing volume can be flexibly controlled by the pressing pressure. Under normal conditions, the cross-shaped silicone valve relies on its own elasticity to close the cross slit, preventing cleaning fluid leakage. When pressed, the cross slit opens to dispense fluid, and automatically closes upon release, while simultaneously allowing external air to enter the receiving cavity through the cross slit, avoiding dispensing difficulties caused by negative pressure. This dual function of one-way dispensing and pressure balance solves the problems of leakage and repeated pressing failure in traditional fluid storage brushes.

[0028] By setting the annular groove 111, the rubber sleeve can be limited to prevent axial slippage during use; the thickened pressing part enhances the structural stability during pressing, avoids the rubber sleeve from twisting or shifting due to uneven force, and ensures that the pressure is effectively transmitted to the receiving cavity; the thickened layer cooperates with the hole to form a limiting support, prevents the rubber sleeve from being damaged or deflected due to excessive pressing, and extends the service life.

[0029] The brush head and tail cap are connected to the handle by threads, making disassembly and disassembly convenient for cleaning residual liquid in the containment chamber, replacing the brush head, or adding cleaning fluid.

[0030] The orifice is positioned upwards and close to the thumb, which aligns with the natural force exerted by the thumb when gripping the hand. This allows for easy dispensing of liquid with just one hand, eliminating the need to adjust hand posture, reducing operator fatigue, and providing excellent comfort.

[0031] In this embodiment, the orifice 110 is racetrack-shaped or elliptical, with its major axis parallel to the length of the handle 1. When pressing the rubber sleeve, the force exerted by the thumb is usually along the length of the handle, and the major axis of the racetrack-shaped orifice is consistent with this direction. The pressing force can be directly applied to both ends of the major axis of the orifice, avoiding local compression deformation of the circular orifice due to the force direction being perpendicular to the orifice wall, thus ensuring a stable liquid output with each press. Users do not need to apply excessive pressing force to achieve efficient liquid output, and the operation feels good.

[0032] This application eliminates the need for frequent application of cleaning solution; simply press to dispense the solution. It is particularly suitable for cleaning tableware, kitchenware, and bathroom supplies, where adding solution while brushing is required. The entire process of holding, pressing, and brushing can be completed with one hand, freeing up the other hand and improving cleaning efficiency. The brush head is detachable and replaceable, preventing the entire brush from being discarded due to bristle aging or bacterial growth, thus reducing usage costs. The receiving cavity and all components can be disassembled for cleaning, eliminating cleaning dead corners. It is especially suitable for post-cleaning maintenance of stubborn stains such as kitchen grease, ensuring long-term hygiene.

[0033] On the other hand, it fits snugly against the rubber sleeve when held, providing a good grip and increasing friction to prevent slipping.

[0034] The outer wall of the rubber sleeve 13 is flush with the outer wall of the handle 1, forming an integral part with the handle. The flushness of the outer wall of the rubber sleeve with the outer wall of the handle means that after the rubber sleeve is embedded into the handle body through the annular groove, its outer surface forms a continuous and smooth transition surface with the handle surface, without protrusions or depressions. This design can form a radial constraint on the rubber sleeve through the groove, preventing the rubber sleeve from shifting laterally or bulging due to force when pressing to dispense liquid. This ensures that the relative position with the handle remains stable even after long-term use, avoiding pressing failure or poor sealing caused by rubber sleeve displacement. The flush surface eliminates the steps or protrusions at the connection between the rubber sleeve and the handle, and the contact area between the palm and the handle is uniform when gripping, avoiding local pressure concentration. It is not easy to cause pressure pain after long-term use, which conforms to ergonomic design. The rubber sleeve itself has a high coefficient of friction, and the flush design makes its anti-slip surface seamlessly connected with the smooth surface of the handle. When gripping, the hand does not need to deliberately avoid the protruding area. The friction distribution on the entire handle surface is more uniform, and it is not easy to slip when operating with wet hands, improving the comfort of use.

[0035] In this application, the handle 1 includes a handle body 11 and a housing 12. The handle 1 is rod-shaped, specifically cylindrical, and the housing 12 is hemispherical, located at the front end of the handle body 11. The two are integrally formed by injection molding. An annular groove 111 is provided on the side wall of the handle body 11. The rear end of the handle body 11 forms a rear connection end, and the lower end of the housing 12 is open, forming a front connection end. The handle body adopts a cylindrical design, and its side wall facilitates the installation of rubber sleeves. The cylindrical surface provides a stable force base for gripping. At the same time, it can conform to the natural grip shape of the human hand, and the surface is smooth without sharp edges, so it is not easy to produce indentations or fatigue after long-term use. The housing is hemispherical and the lower end is open to form a front connection end, which facilitates the threaded connection with the brush head. At the same time, it provides installation space for components such as the cross silicone valve and drainage hole inside the brush head, ensuring smooth flow of cleaning fluid from the handle to the brush head.

[0036] In this embodiment, the axis of the handle body 11 is inclined to the axis of the housing 12, that is, the handle body 11 is tilted upwards, forming an obtuse angle. Preferably, the angle between the axis of the handle body 11 and the axis of the housing 12 is greater than or equal to 100 degrees and less than or equal to 130 degrees. After the handle body is tilted upwards, the cavity inside forms an inclined cavity structure with a lower front and a higher back. Combined with the hemispherical curved surface of the housing, it can guide the cleaning fluid to naturally converge towards the brush head under the combined action of gravity and pressing pressure, reducing the dead corner of liquid residue at the corner where the handle and housing are connected. The upward tilt of the handle body conforms to the natural bending angle of the wrist when the human body holds it. The tilt angle of 100°-130° can keep the wrist in a slightly dorsiflexed state when holding it, avoiding the muscle tension caused by excessive flexion or extension of the wrist in the straight bar design, and reducing fatigue after long-term use. Combined with the design of the hole being located near the thumb, when the thumb presses the thickened layer of the rubber sleeve after the handle is tilted, the direction of force is perpendicular to the plane of the pressing part, the pressing pressure is more direct, and the liquid can be dispensed efficiently without shifting the finger posture.

[0037] To further improve user comfort, in this application, the front end of the handle body 11 gradually tapers before connecting to the housing 12. The tapering design makes the handle body thicker at the rear and thinner at the front. When the user holds it, the palm naturally fits the thicker section, and the fingers can lightly grip the tapering transition area, forming a grip space that is narrower at the front and wider at the back, enhancing the fit between the hand and the handle. Especially in scenarios with wet hands or with cleaning fluid, the tapering bevel can increase friction and prevent slipping. Moreover, the streamlined appearance of the tapering transition is more visually appealing than a right-angle connection, making the connection between the handle and the housing more natural and coordinated.

[0038] For easy placement, a hook 21 is provided at the end of the tail cap 2. The hook can be used to hang the cleaning brush directly on a kitchen hook, bathroom suction cup holder or shelf with the brush head facing down and the bristles hanging down naturally, so as to facilitate the drainage of residual water and prevent the bristles from contacting the countertop and causing bacteria or odor when laid flat.

[0039] In this application, the handle 1 is made entirely of transparent material. The transparent handle allows direct observation of the liquid level in the internal cavity. Users can determine the remaining amount of cleaning liquid without removing the tail cap, avoiding interruptions in operation due to the liquid not dispensing during the cleaning process, resulting in a better user experience.

[0040] In this application, the lower end of the brush head 3 serves as the working surface, which is a slightly convex arc-shaped surface. A drain hole 30 is provided in the center of the arc-shaped surface. The drain hole 30 is a stepped hole with a larger upper end and a smaller lower end. It has an upward mounting surface, on which the cross silicone valve 41 is mounted and secured by a retaining ring 42. Its structure is compact and easy to assemble. When the cross silicone valve 41 is damaged, it can be replaced independently without replacing the entire brush head or handle assembly, thus reducing maintenance costs.

[0041] Specifically, the drain hole 30 includes an upper hole 301 and a lower hole 302 arranged sequentially from top to bottom. The upper hole 301 and the lower hole 302 are coaxially arranged. The inner side of the lower hole 302 extends axially upward to form an annular mounting part 31. The upper end face of the mounting part 31 forms a mounting surface. At the same time, an annular groove 32 is formed on the inner wall of the upper hole 301. The cross silicone valve 41 is made entirely of silicone and includes an annular body 413 that can contact the mounting surface. The inner side of the annular body 413 extends axially upward to form a cylindrical connecting part 411. The end of the connecting part 411 extends radially inward and is sealed to form a sealing surface 412. A cross-shaped slit is provided on the surface 412. The cross-shaped slit can open when driven by pressure difference and close when there is no pressure difference to prevent leakage. The outer side of the annular body 413 extends upward axially to form a limiting part 414. The retaining ring 42 includes a cylindrical retaining ring body 421, which can be fitted into the upper hole 301. The lower end face of the retaining ring body 421 serves as a pressing surface for pressing the cross silicone valve. An annular receiving groove 423 is provided on the pressing surface to accommodate the insertion of the limiting part 414. The outer wall of the retaining ring body 421 is provided with a snap-fit ​​part 422. The snap-fit ​​part is a frustum structure that is larger at the top and smaller at the bottom, which can be snapped into the annular snap-fit ​​groove 32 to achieve fixation.

[0042] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A cleaning brush, characterized in that, include: The handle is hollow and has an internal cavity for holding cleaning fluid. The cavity is open at both ends and serves as an inlet and an outlet, respectively. The inlet and outlet are threaded and form a front connection end and a rear connection end, respectively. The side wall of the handle has an annular groove, and the side wall of the annular groove has a hole that communicates with the cavity and faces upward. The brush head is detachably mounted on the front connecting end, and the bottom surface of the brush head is provided with bristles and a cross-shaped silicone valve for discharging cleaning fluid. The tail cap is detachably mounted on the rear connecting end; The rubber sleeve is cylindrical and fitted inside the annular groove, so that the receiving cavity forms a sealed cavity. The inner wall of the rubber sleeve located at the hole is provided with a thickened layer and forms a pressing part. When the pressing part is pressed, the volume inside the receiving cavity decreases and the cleaning fluid is squeezed out from the cross-shaped silicone valve.

2. The cleaning brush as described in claim 1, characterized in that: The handle includes a cylindrical handle body and a hemispherical shell disposed at the front end of the handle body. The annular groove is disposed on the side wall of the handle body. The rear end of the handle body forms the rear connecting end, and the lower end of the shell is open and forms the front connecting end.

3. The cleaning brush as described in claim 2, characterized in that: The axis of the handle body is inclined to the axis of the housing.

4. The cleaning brush as described in claim 2, characterized in that: The front end of the handle body gradually narrows and connects to the housing.

5. The cleaning brush as described in claim 1, characterized in that: The end of the tail cap is provided with a hook.

6. The cleaning brush as described in claim 1, characterized in that: The outer wall of the rubber sleeve is flush with the outer wall of the handle.

7. The cleaning brush as described in claim 1, characterized in that: The hole is racetrack-shaped or elliptical, and its major axis is parallel to the length direction of the handle.

8. The cleaning brush as described in claim 1, characterized in that: The handle is made of a transparent material.

9. The cleaning brush as described in claim 1, characterized in that: The brush head has a drain hole in the center. The drain hole is a stepped hole with a larger upper end and a smaller lower end, and has an upward mounting surface. The cross silicone valve is mounted on the mounting surface and is pressed and fixed by a retaining ring.

10. The cleaning brush as described in claim 9, characterized in that: The drain hole includes an upper hole and a lower hole arranged sequentially. The inner side of the lower hole extends axially upward to form a mounting part, and the end face of the mounting part forms the mounting surface. An annular groove is formed on the inner wall of the upper hole. The cross silicone valve includes a ring body that can contact the mounting surface. The inner side of the ring body extends axially upward to form a cylindrical connecting part. The end of the connecting part extends radially inward and is sealed to form a sealing surface. A cross slit is formed on the sealing surface. The outer side of the ring body extends axially upward to form a limiting part. The retaining ring includes a cylindrical retaining ring body that can be fitted into the upper hole. The lower end face of the retaining ring body serves as a pressing surface. An annular receiving groove for the limiting part to be inserted is formed on the pressing surface. A retaining part is provided on the outer wall of the retaining ring body that can be engaged with the annular groove and fixed.

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