Telescopic silica gel bath brush

By adopting a modular design and an automatic shower gel replenishment system, the problem of traditional shower brushes being unable to adjust their length and having limited functionality has been solved. This allows for convenient brush head replacement and multi-functional cleaning, thus improving the user experience.

CN224070286UActive Publication Date: 2026-04-03DONGGUAN JIEPUTA SILICONE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Traditional bath brushes have a one-piece structure, are not adjustable in length, and are inconvenient to use; if the brush head is damaged, the whole brush needs to be replaced, which is a waste of resources; and they have limited functionality and cannot meet different needs.

Method used

Featuring a modular design, the handle and brush head are detachably connected, and the length can be adjusted via threaded components and a locking structure; the storage chamber and airbag system enable automatic replenishment of bath liquid; the bristle density and hardness are adjustable to adapt to different cleaning needs.

Benefits of technology

It features flexible handle length adjustment, convenient brush head replacement, extended product lifespan, diverse cleaning effects, and enhanced user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224070286U_ABST
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Abstract

The utility model belongs to the technical field of bath brushes, and discloses a telescopic silica gel bath brush which comprises a brush head and a handle, a connecting rod is arranged on one side of the handle, a connecting block is fixed to one end of the connecting rod, a threaded assembly is arranged between the brush head and the connecting block, a plurality of through grooves are formed in the side wall of the handle at equal intervals, and the through grooves are communicated with the connecting block. The side wall of the connecting rod is fixedly connected with a hollow cylinder, a first movable rod is arranged in the hollow cylinder, a spring is connected between the hollow cylinder and the first movable rod, the outer surface of the first movable rod is fixedly connected with a second movable rod, and the outer surface of the second movable rod is fixedly connected with a clamping block. The connecting rod relatively moves in the handle, and when the connecting rod moves to a proper position, the clamping block can be accurately embedded into the preset through groove. At the moment, the spring ensures that the clamping block is stably locked in the through groove, and then the whole length of the handle and the connecting rod is fixed.
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Description

Technical Field

[0001] This utility model belongs to the field of bath brush technology, specifically relating to a retractable silicone bath brush. Background Technology

[0002] A bath brush is a tool used to clean the body, typically used during bathing to help remove dead skin, dirt, and grease, while also providing a massage effect and promoting blood circulation.

[0003] Most existing traditional bath brushes adopt a one-piece structure, with components such as the brush head and handle usually fixedly connected and not detachable. This design results in a non-adjustable length, preventing users from adjusting the length according to their height or usage scenario, which may be inconvenient during use. Furthermore, because the structure is not easily disassembled, when the brush head wears out or is damaged, users have to replace the entire product, resulting in resource waste. At the same time, the limited functionality restricts product versatility, preventing users from selecting the appropriate brush head for different cleaning needs, further diminishing the user experience. Utility Model Content

[0004] The purpose of this utility model is to provide a retractable silicone bath brush to solve the problems mentioned in the background art, which are that traditional bath brushes are integrated structures that cannot be disassembled, resulting in non-adjustable length and inconvenience in use; the brush head needs to be replaced when damaged, which wastes resources; and the function is limited and cannot meet different needs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a retractable silicone bath brush, comprising: a brush head and a handle, the handle having a hollow structure, a connecting rod provided on one side of the handle, the handle having sufficient internal space to accommodate the connecting rod, a connecting block fixed to one end of the connecting rod, a threaded assembly provided between the brush head and the connecting block, multiple through slots equally spaced on the side wall of the handle, a hollow cylinder fixedly connected to the side wall of the connecting rod, a first movable rod provided inside the hollow cylinder, a spring connected between the hollow cylinder and the first movable rod, a second movable rod fixedly connected to the outer surface of the first movable rod, a locking block fixedly connected to the outer surface of the second movable rod, the locking block matching the through slots to achieve a positioning function, and a limit assembly provided between the connecting rod and the handle.

[0006] Preferably, the limiting component includes a limiting groove and a limiting block, the outer wall of the connecting rod is provided with a limiting groove, the inner wall of the handle is installed with a limiting block, and the limiting groove and the limiting block are adapted to each other.

[0007] Through the above technical solution:

[0008] When in use, this bath brush features a modular design, mainly consisting of a brush head and a handle. The handle has a hollow structure, designed to accommodate key internal components, ensuring a compact overall structure with good functionality. In actual use, the user first securely attaches the brush head to the handle, and then adjusts the overall length of the handle by pulling or pushing the connecting rod as needed.

[0009] Specifically, the connecting rod moves relative to the handle, simultaneously driving the hollow cylinder, the first movable rod, the second movable rod, and the locking block to work together. When the connecting rod moves to the appropriate position, the locking block will precisely engage in the preset through slot. At this point, the spring, using its own elasticity, pushes the first movable rod, the second movable rod, and the locking block, ensuring that the locking block can be securely locked in the through slot, thereby fixing the overall length of the handle and the connecting rod.

[0010] The diameter of the first movable rod is carefully designed to be smaller than the inner diameter of the hollow cylinder, allowing it to slide smoothly within the cylinder; simultaneously, its diameter is larger than that of the second movable rod, achieving a precise fit with it. To further enhance the stability of the equipment, an anti-detachment block is installed on the inner wall of the hollow cylinder. This ingeniously designed anti-detachment block effectively blocks the movement path of the first movable rod, preventing it from accidentally falling off during use, while not affecting the movement of the second movable rod. This design not only ensures the stable operation of the first movable rod within the hollow cylinder but also guarantees the reliability and safety of the entire equipment. Through this precise mechanical structure and intelligent anti-detachment design, the overall stability of the equipment is significantly improved, giving users greater peace of mind during use.

[0011] When users need to adjust the length, they simply press the locking block to retract it, then continue pulling or pushing the connecting rod until the locking block re-enters the other slot, completing the new length adjustment. This design greatly simplifies the operation process while providing users with flexible length adjustment options, suitable for people of different heights and various usage scenarios, significantly improving the product's applicability and user experience.

[0012] Furthermore, as the connecting rod moves within the handle, the limiting block moves synchronously within the limiting groove. The limiting groove and the limiting block are mutually compatible, precisely limiting the position of the connecting rod and ensuring that the locking block can accurately embed into the through groove during extension and retraction, thereby guaranteeing the stability and safety of the structure.

[0013] In summary, thanks to its sophisticated mechanical construction and intelligent locking mechanism, this bath brush achieves convenient length adjustment and a secure locking function. Users can easily adjust the handle length to suit their needs, allowing both children and adults to find the most comfortable grip. This design not only enhances the product's versatility but also improves ease of use and safety, making it an ideal cleaning tool suitable for a wide range of users.

[0014] The threaded assembly includes a threaded groove and a threaded post. The threaded groove is formed on the side wall of the connecting block near the brush head, and the threaded post is fixed to the outer wall of the brush head. The threaded groove and the threaded post are matched with each other to achieve a detachable connection.

[0015] Through the above technical solution:

[0016] To install the brush head, screw it on so that the threaded post engages with the threaded groove, securing the brush head firmly to the handle. To remove the brush head, screw it on in the opposite direction; the threaded post will then disengage from the threaded groove, allowing for quick removal.

[0017] This easy-to-install and easy-to-disassemble brush head design utilizes a threaded engagement mechanism to achieve quick connection and separation between the brush head and handle. Users can easily install or remove the brush head simply by twisting it in either direction, without any additional tools. This ingenious design significantly enhances the product's convenience, allowing users to quickly change brush heads during daily use or when carrying it around, significantly improving efficiency and making cleaning more time-saving and labor-saving. Furthermore, the easy-to-replace brush head design extends the product's lifespan, and users can choose different types of brush heads according to their needs, further enhancing the product's versatility and user experience.

[0018] When installing the handle, first align the limiting groove on the inner wall of the handle with the limiting block on the outer wall of the connecting rod, ensuring they are properly matched. Next, press the locking block on the connecting rod to retract it, allowing the handle to smoothly fit onto the connecting rod. Once the handle is fully inserted, release the locking block; the spring will spring back and lock it in the limiting groove, completing the handle installation. The entire process requires no tools and is simple and quick.

[0019] To disassemble the handle, the user needs to pull the connecting rod and continuously press the locking block to keep it in the retracted state until the connecting rod is completely separated from the handle. The entire disassembly process requires no tools, and the steps are clear and easy for users to complete.

[0020] This easy-to-install and easy-to-disassemble design makes the replacement and installation of the handle simple and efficient. Users do not need professional skills or any tools to quickly complete the operation. This not only improves the user experience of the product, but also enhances its portability and practicality, making it especially suitable for quick assembly and disassembly for daily home use or when carrying it when traveling.

[0021] In summary, this bath brush features a modular design, with both the brush head and handle being replaceable, independent components. This design provides users with exceptional flexibility; when the brush head wears out or becomes damaged from prolonged use, users can easily disassemble and replace it with a new one without replacing the entire product. Furthermore, users can quickly change brush heads by simply disassembling and assembling them to try different functions, such as deep cleaning, massage, or exfoliation, or to suit personal preferences or usage scenarios by changing the shape or color. This easy-to-install and easy-to-disassemble feature not only extends the product's lifespan but also provides users with a diverse user experience, making daily cleaning more convenient and personalized. Whether for functional needs or aesthetic preferences, users can freely replace the brush head and handle according to their own needs, truly achieving the product's versatility and sustainable use.

[0022] The brush head has a storage chamber inside, and the discharge end of the storage chamber is connected to a discharge pipe. The inlet end of the discharge pipe is connected to a guide pipe. The guide pipe is equipped with a one-way valve. The inlet end of the guide pipe is connected to a connecting hose. A counterweight ball is installed at the end of the connecting hose away from the guide pipe. An air bladder is installed in the storage chamber, and the brush bristles are fixed to the outer surface of the air bladder. The side wall of the brush head is connected to an inlet pipe, and the inlet pipe communicates with the storage chamber.

[0023] Preferably, bristles are provided on both sides of the outer peripheral wall of the brush head. The bristles are made of silicone material, and the bristles on both sides can be set with different densities and hardness.

[0024] Through the above technical solution:

[0025] During use, users can inject bath liquid into the storage chamber through the feed pipe. To ensure good sealing, the feed pipe is sealed with a threaded cap. When the brush head contacts and is pressed against the body surface, the airbag is simultaneously compressed, thereby pressurizing the bath liquid in the storage chamber. At this time, driven by pressure, the bath liquid flows sequentially through the counterweight ball, connecting hose, and guide pipe, and finally flows out evenly from the discharge pipe, realizing the function of replenishing bath liquid while cleaning, ensuring a continuous and efficient cleaning process.

[0026] The ingenious design of the one-way valve ensures that the shower gel can only flow out smoothly without backflow, maintaining a stable unidirectional flow rate. The counterweight ball, due to its own gravity, ensures a continuous and stable flow of shower gel from the storage chamber into the guide pipe, regardless of the brush head's angle or direction during use. This design effectively overcomes the problem of impaired or even interrupted liquid flow caused by changes in gravity under different washing postures or angles. Thanks to the gravity compensation mechanism of the counterweight ball, the shower gel is supplied evenly and continuously, allowing users to achieve consistent cleaning results in any washing posture.

[0027] It's worth mentioning that the counterweight ball also functions as a stirring device. After the shower gel is injected into the storage chamber, the counterweight ball moves freely in the liquid, its movement continuously stirring the shower gel. This stirring effect not only prevents the components in the shower gel from separating, ensuring a uniform composition with each use, but also effectively prevents sediment buildup, maintaining the cleanliness and efficacy of the shower gel. Whether the user uses a thin or thick shower gel, the counterweight ball, with its precise weight distribution and reasonable range of motion, ensures smooth flow and continuous supply of shower gel while achieving uniform stirring.

[0028] Furthermore, if excessive negative pressure occurs in the storage chamber, the user can simply unscrew the cover on the feed pipe to replenish the air pressure in the storage chamber, maintaining the system in normal operation. This design not only enhances the product's practicality but also improves ease of use and optimizes the user experience.

[0029] The bristles on both sides can be designed with different densities and hardnesses to achieve diverse cleaning effects, depending on the user's needs. For example, one side can be set with a higher density and hardness for deep cleaning and exfoliation, while the other side can be set with a lower density and hardness for gentle massage and cleaning sensitive areas. This design greatly enhances the product's versatility and provides users with a more personalized experience.

[0030] Preferably, the outer surface of the handle has an anti-slip structure, which is distributed in a groove shape.

[0031] Specifically, the outer surface of the handle features an anti-slip structure, evenly distributed in a grooved pattern. This grooved anti-slip structure not only increases the friction between the handle and the palm during use, effectively preventing slippage, but also ensures a comfortable and safe grip. Its carefully designed distribution ensures both anti-slip performance and maintains the handle's overall aesthetics and feel, providing users with a stable and comfortable grip experience.

[0032] Preferably, the end of the handle away from the connecting block has a hanging hole, and the hanging hole has an arc-shaped structure.

[0033] Specifically, the hanging hole is located at the end of the handle furthest from the connecting block, featuring a smooth, curved design that not only gives the product a modern aesthetic but also provides multiple functional conveniences. This design allows users to hang the bath brush on hooks, shower rods, or other fixed devices, effectively saving space and keeping things tidy. At the same time, the curved structure ensures stable hanging and securing, improving safety and comfort during use. Furthermore, the hanging hole supports multiple storage methods, allowing users to use it flexibly according to their needs, greatly enhancing the product's practicality and portability—a design highlight that combines beauty and functionality.

[0034] Compared with the prior art, the beneficial effects of this utility model are:

[0035] (1) This utility model achieves convenient adjustment of the handle length by setting up a connecting rod, spring, locking block, and through groove. In actual use, the connecting rod moves relative to the handle, synchronously driving the hollow cylinder, the first movable rod, the second movable rod, and the locking block to move in coordination. When the connecting rod moves to the appropriate position, the locking block will be precisely embedded in the preset through groove. At this time, the spring, relying on its own elasticity, pushes the first movable rod, the second movable rod, and the locking block to ensure that the locking block is firmly locked in the through groove, thereby fixing the overall length of the handle and the connecting rod. With this design, both children and adults can easily adjust the handle length according to their own needs and find the most comfortable grip posture.

[0036] (2) This utility model achieves convenient installation and disassembly between the brush head and the handle by utilizing structures such as threaded posts and connecting rods. In actual operation, users only need to screw on the brush head and pull or push the connecting rod to easily complete the installation and disassembly process of the brush head and the handle. With this design, users can freely replace the brush head and the handle according to functional needs or personal preferences, effectively improving the flexibility of the product and extending its service life.

[0037] (3) This utility model, through the design of a storage chamber, an air bladder, a counterweight ball, and a discharge pipe, enables the replenishment of shower liquid while washing. The user injects liquid through the inlet pipe and seals it. During use, the air bladder, under pressure, pushes the liquid through the counterweight ball and the flow guiding system to flow out through the discharge pipe, achieving a continuous supply. A one-way valve ensures unidirectional liquid flow and prevents backflow. The counterweight ball utilizes gravity to ensure a stable liquid supply and, through its stirring function, prevents liquid stratification and sedimentation, ensuring uniformity and effectiveness. This design integrates supply, stirring, and sealing, improving ease of use and cleaning effect. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of this utility model;

[0039] Figure 2This is a structural appearance drawing of the present utility model;

[0040] Figure 3 This is a schematic diagram of the connecting block of this utility model;

[0041] Figure 4 This is a schematic diagram of the material storage cavity of this utility model;

[0042] Figure 5 This is a schematic diagram of the handle of this utility model;

[0043] Figure 6 This is a schematic diagram of the connecting rod of this utility model;

[0044] Figure 7 This is a schematic diagram of the structure of the card block of this utility model;

[0045] Figure 8 This is a schematic diagram of the structure of the limiting block of this utility model;

[0046] Figure 9 This is a schematic diagram of the structure of the threaded column of this utility model;

[0047] In the diagram: 1. Brush head; 2. Handle; 3. Connecting block; 4. Connecting rod; 5. Through groove; 6. Hollow cylinder; 7. First movable rod; 8. Second movable rod; 9. Locking block; 10. Spring; 11. Limiting groove; 12. Limiting block; 13. Threaded groove; 14. Threaded column; 15. Brush bristles; 16. Anti-slip structure; 17. Suspension hole; 18. Storage chamber; 19. Discharge pipe; 20. Guide pipe; 21. Connecting hose; 22. Counterweight ball; 23. Airbag; 24. Feed pipe. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0049] Please see Figures 1-8As shown, this utility model provides the following technical solution: a retractable silicone bath brush, comprising: a brush head 1 and a handle 2, the handle 2 having a hollow structure, a connecting rod 4 provided on one side of the handle 2, the handle 2 having sufficient internal space to accommodate the connecting rod 4, a connecting block 3 fixed to one end of the connecting rod 4, a threaded assembly provided between the brush head 1 and the connecting block 3, multiple through slots 5 opened at equal intervals on the side wall of the handle 2, a hollow cylinder 6 fixedly connected to the side wall of the connecting rod 4, a first movable rod 7 provided inside the hollow cylinder 6, a spring 10 connected between the hollow cylinder 6 and the first movable rod 7, a second movable rod 8 fixedly connected to the outer surface of the first movable rod 7, a locking block 9 fixedly connected to the outer surface of the second movable rod 8, the locking block 9 matching the through slots 5 to achieve a positioning function, and a limit assembly provided between the connecting rod 4 and the handle 2.

[0050] Furthermore, the limiting component includes a limiting groove 11 and a limiting block 12. The outer wall of the connecting rod 4 has a limiting groove 11, and the inner wall of the handle 2 is fitted with a limiting block 12. The limiting groove 11 and the limiting block 12 are compatible.

[0051] Through the above technical solution:

[0052] In use, this bath brush features a modular design, mainly consisting of a brush head 1 and a handle 2. The handle 2 has a hollow structure, designed to accommodate key internal components, ensuring a compact overall structure and good functionality. In actual use, the user first securely mounts the brush head 1 onto the handle 2, and then adjusts the overall length of the handle 2 by pulling or pushing the connecting rod 4, according to actual needs.

[0053] Specifically, the connecting rod 4 moves relative to the handle 2, simultaneously driving the hollow cylinder 6, the first movable rod 7, the second movable rod 8, and the locking block 9 to work together. When the connecting rod 4 moves to the appropriate position, the locking block 9 will precisely embed into the preset through slot 5. At this time, the spring 10, with its own elasticity, pushes the first movable rod 7, the second movable rod 8, and the locking block 9, ensuring that the locking block 9 can be firmly locked in the through slot 5, thereby fixing the overall length of the handle 2 and the connecting rod 4.

[0054] The diameter of the first movable rod 7 is carefully designed to be smaller than the inner diameter of the hollow cylinder 6, allowing it to slide smoothly within the cylinder. Simultaneously, its diameter is larger than that of the second movable rod 8, ensuring a precise fit. To further enhance the stability of the equipment, an anti-detachment block is installed on the inner wall of the hollow cylinder 6. This ingeniously designed anti-detachment block effectively blocks the movement path of the first movable rod 7, preventing accidental detachment during use, while simultaneously not affecting the movement of the second movable rod 8. This design not only ensures the stable operation of the first movable rod 7 within the hollow cylinder 6 but also guarantees the reliability and safety of the entire equipment. Through this precise mechanical structure and intelligent anti-detachment design, the overall stability of the equipment is significantly improved, giving users greater peace of mind during use.

[0055] When users need to adjust the length, they simply press the locking block 9 to retract it, and then continue to pull or push the connecting rod 4 until the locking block 9 re-enters the other slot 5, completing the new length adjustment. This design greatly simplifies the operation process and provides users with flexible length adjustment options, suitable for people of different heights and various usage scenarios, significantly improving the product's applicability and user experience.

[0056] Furthermore, as the connecting rod 4 moves within the handle 2, the limiting block 12 moves synchronously within the limiting groove 11. The limiting groove 11 and the limiting block 12 are mutually adapted to precisely limit the position of the connecting rod 4, ensuring that the locking block 9 can be accurately embedded into the through groove 5 during the extension and retraction process, thereby ensuring the stability and safety of the structure.

[0057] In summary, thanks to its sophisticated mechanical construction and intelligent locking mechanism, this bath brush achieves convenient length adjustment and a secure locking function. Users can easily adjust the length of the handle 2 to suit their needs, allowing both children and adults to find the most comfortable grip. This design not only enhances the product's versatility but also improves ease of use and safety, making it an ideal cleaning tool suitable for a wide range of users.

[0058] Please see Figures 1-3 and Figure 9 As shown, the threaded assembly includes a threaded groove 13 and a threaded post 14. The threaded groove 13 is formed on the side wall of the connecting block 3 near the brush head 1, and the threaded post 14 is fixed to the outer wall of the brush head 1. The threaded groove 13 and the threaded post 14 are matched with each other to achieve a detachable connection.

[0059] Through the above technical solution:

[0060] When installing brush head 1, screw brush head 1 to engage the threaded post 14 with the threaded groove 13, thus firmly fixing brush head 1 to handle 2. When removing brush head 1, screw brush head 1 in the opposite direction, and the threaded post 14 will disengage from the threaded groove 13, achieving quick disassembly.

[0061] This easy-to-install and easy-to-disassemble brush head 1 design utilizes a threaded engagement mechanism to achieve quick connection and separation between the brush head 1 and the handle 2. Users can easily install or remove the brush head 1 by simply twisting it in either direction, without any additional tools. This ingenious design significantly enhances the product's convenience, allowing users to quickly replace the brush head 1 during daily use or when carrying it around, significantly improving efficiency and making cleaning more time-saving and labor-saving. Furthermore, the easily replaceable brush head 1 design extends the product's lifespan, and users can choose different types of brush heads 1 according to different needs, further enhancing the product's versatility and user experience.

[0062] When installing handle 2, first align the limiting groove 11 on the inner wall of handle 2 with the limiting block 12 on the outer wall of connecting rod 4 to ensure they are in the same position. Next, the user needs to press the locking block 9 on connecting rod 4 to retract it, allowing handle 2 to be smoothly fitted onto connecting rod 4. After handle 2 is fully fitted, release locking block 9. Locking block 9 will spring back under the force of spring 10 and lock into the limiting groove 11, completing the installation of handle 2. The entire process requires no tools and is simple and quick to operate.

[0063] To disassemble handle 2, the user needs to pull the connecting rod 4 and continuously press the locking block 9 to keep it in the retracted state until the connecting rod 4 is completely separated from handle 2, thus completing the disassembly. The entire disassembly process also requires no tools, and the steps are clear and straightforward, allowing users to easily complete it.

[0064] This easy-to-install and easy-to-disassemble design makes the replacement and installation of the handle 2 simple and efficient. Users do not need professional skills or any tools to quickly complete the operation. This not only improves the user experience of the product, but also enhances its portability and practicality, making it especially suitable for quick assembly and disassembly for daily home use or when carrying it out.

[0065] In summary, this bath brush features a modular design, with both the brush head 1 and handle 2 being replaceable independent components. This design provides users with great flexibility; when the brush head 1 wears out or becomes damaged due to prolonged use, users can easily disassemble and replace it with a new one without replacing the entire product. Furthermore, when users wish to try different functions of the brush head 1, such as deep cleaning, massage, or exfoliation, or wish to change its shape or color to suit personal preferences or usage scenarios, they can quickly switch between them through simple disassembly and assembly. This easy-to-install and easy-to-disassemble feature not only extends the product's lifespan but also provides users with a diverse user experience, making daily cleaning more convenient and personalized. Whether for functional needs or aesthetic preferences, users can freely replace the brush head 1 and handle 2 according to their own circumstances, truly achieving the product's versatility and sustainable use.

[0066] Please see Figures 1-4 As shown, the brush head 1 has a storage chamber 18 inside. The discharge end of the storage chamber 18 is connected to a discharge pipe 19. The inlet end of the discharge pipe 19 is connected to a guide pipe 20. A one-way valve is installed in the guide pipe 20. A connecting hose 21 is connected to the inlet end of the guide pipe 20. A counterweight ball 22 is installed at the end of the connecting hose 21 away from the guide pipe 20. An air bladder 23 is installed in the storage chamber 18, and the bristles 15 are fixed to the outer surface of the air bladder 23. The side wall of the brush head 1 is connected to an inlet pipe 24, and the inlet pipe 24 communicates with the storage chamber 18.

[0067] Furthermore, bristles 15 are provided on both sides of the outer peripheral wall of the brush head 1. The bristles 15 are made of silicone material, and the bristles 15 on both sides can be set to different densities and hardnesses.

[0068] Through the above technical solution:

[0069] During use, the user can inject bath liquid into the storage chamber 18 through the feed pipe 24. To ensure good sealing, the feed pipe 24 is sealed with a threaded cap. When the brush head 1 contacts and is pressed against the body surface, the airbag 23 is simultaneously compressed, thereby generating pressure on the bath liquid in the storage chamber 18. At this time, driven by pressure, the bath liquid flows sequentially through the counterweight ball 22, the connecting hose 21, and the guide pipe 20, and finally flows out evenly from the discharge pipe 19, realizing the function of replenishing bath liquid while cleaning, ensuring a continuous and efficient cleaning process.

[0070] The ingenious design of the one-way valve ensures that the shower gel can only flow out smoothly without backflow, maintaining a stable unidirectional flow rate. The counterweight ball 22, due to its own gravity, ensures a continuous and stable flow of shower gel from the storage chamber 18 into the guide pipe 20, regardless of the angle or direction of the brush head 1 during use. This design effectively overcomes the problem of impaired or even interrupted liquid flow caused by changes in gravity under different washing postures or angles. Thanks to the gravity compensation mechanism of the counterweight ball 22, the shower gel is supplied evenly and continuously, allowing users to achieve a consistent cleaning effect regardless of their washing posture.

[0071] It's worth mentioning that the counterweight ball 22 also functions as a stirring device. After the shower gel is injected into the storage chamber 18, the counterweight ball 22 moves freely in the liquid, and its movement continuously stirs the shower gel. This stirring effect not only prevents the components in the shower gel from separating, ensuring that the shower gel composition is uniform with each use, but also effectively prevents the accumulation of sediment, maintaining the cleanliness and efficacy of the shower gel. Whether the user uses a thin or thick shower gel, the counterweight ball 22, with its precise weight configuration and reasonable range of motion, ensures smooth flow and continuous supply of shower gel, while achieving the goal of uniform stirring.

[0072] Furthermore, if excessive negative pressure occurs in the storage chamber 18, the user can simply unscrew the cover on the feed pipe 24 to replenish the air pressure in the storage chamber 18, maintaining the system in normal operation. This design not only enhances the product's practicality but also improves ease of use and optimizes the user experience.

[0073] The bristles 15 on both sides can be designed with different densities and hardnesses to achieve diverse cleaning effects according to usage needs. For example, one side of the bristles 15 can be set to a higher density and hardness for deep cleaning and exfoliation, while the other side can be set to a lower density and hardness for gentle massage and cleaning sensitive areas. This design greatly enhances the product's versatility and provides users with a more personalized experience.

[0074] For further details, please refer to Figures 1-6 As shown, the outer surface of the handle 2 is provided with an anti-slip structure 16, which is distributed in a groove shape.

[0075] Specifically, the outer surface of the handle 2 is designed with an anti-slip structure 16, which is evenly distributed in a groove shape. The grooved anti-slip structure 16 not only increases the friction between the handle 2 and the palm during use, effectively preventing slippage, but also ensures the comfort and safety of the grip. Its distribution is carefully designed to ensure the anti-slip effect without affecting the overall aesthetics and grip feel of the handle 2, providing users with a stable and comfortable grip experience.

[0076] For further details, please refer to Figures 1-6 As shown, a hanging hole 17 is provided at the end of the handle 2 away from the connecting block 3, and the hanging hole 17 has an arc-shaped structure.

[0077] Specifically, the hanging hole 17 is located at the end of the handle 2 furthest from the connecting block 3, featuring a smooth, curved design. This not only gives the product a modern aesthetic but also provides multiple functional conveniences. This design allows users to hang the bath brush on hooks, shower rods, or other fixed devices, effectively saving space and maintaining tidiness. Simultaneously, the curved structure ensures stable hanging and fixing, improving safety and comfort during use. Furthermore, the hanging hole 17 supports multiple storage methods, allowing users to flexibly use it according to their needs, greatly enhancing the product's practicality and portability. It is a design highlight that combines aesthetics and functionality.

[0078] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A retractable silicone bath brush, characterized in that... The device includes a brush head (1) and a handle (2). The handle (2) has a hollow structure. A connecting rod (4) is provided on one side of the handle (2). The handle (2) has sufficient internal space to accommodate the connecting rod (4). A connecting block (3) is fixed to one end of the connecting rod (4). A threaded assembly is provided between the brush head (1) and the connecting block (3). Multiple through slots (5) are opened at equal intervals on the side wall of the handle (2). A hollow cylinder (6) is fixedly connected to the side wall of the connecting rod (4). A first movable rod (7) is provided inside the hollow cylinder (6). A spring (10) is connected between the hollow cylinder (6) and the first movable rod (7). A second movable rod (8) is fixedly connected to the outer surface of the first movable rod (7). A locking block (9) is fixedly connected to the outer surface of the second movable rod (8). The locking block (9) matches the through slot (5) to achieve a positioning function. A limit assembly is provided between the connecting rod (4) and the handle (2).

2. The retractable silicone bath brush according to claim 1, characterized in that... The threaded assembly includes a threaded groove (13) and a threaded post (14). The threaded groove (13) is formed on the side wall of the connecting block (3) near the brush head (1). The threaded post (14) is fixed to the outer wall of the brush head (1). The threaded groove (13) and the threaded post (14) are matched with each other to achieve a detachable connection.

3. A retractable silicone bath brush according to claim 2, characterized in that... The limiting component includes a limiting groove (11) and a limiting block (12). The outer wall of the connecting rod (4) has a limiting groove (11), and the inner wall of the handle (2) is fitted with a limiting block (12). The limiting groove (11) and the limiting block (12) are compatible.

4. A retractable silicone bath brush according to claim 1, characterized in that... The brush head (1) has bristles (15) on both sides of its outer peripheral wall, and the bristles (15) are made of silicone material.

5. A retractable silicone bath brush according to claim 1, characterized in that... The outer surface of the handle (2) is provided with an anti-slip structure (16), which is distributed in a groove shape.

6. A retractable silicone bath brush according to claim 1, characterized in that... The handle (2) has a hanging hole (17) at the end away from the connecting block (3), and the hanging hole (17) has an arc-shaped structure.

7. A retractable silicone bath brush according to claim 4, characterized in that... The brush head (1) has a storage chamber (18) inside. The discharge end of the storage chamber (18) is connected to a discharge pipe (19). The inlet end of the discharge pipe (19) is connected to a guide pipe (20). The guide pipe (20) is equipped with a one-way valve. The inlet end of the guide pipe (20) is connected to a connecting hose (21). A counterweight ball (22) is installed at the end of the connecting hose (21) away from the guide pipe (20). An air bladder (23) is installed in the storage chamber (18). The brush bristles (15) are fixed on the outer surface of the air bladder (23). The side wall of the brush head (1) is connected to an inlet pipe (24). The inlet pipe (24) is connected to the storage chamber (18).