Filter for a massage bath
Patent Information
- Application Number
- CN202522726905.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-12-23
AI Technical Summary
目前市场上的浴缸用水过滤器主要包括滤芯、底座、密封件等核心结构,常见连接方式有卡扣式、插拔式、简易螺纹式等,但现有技术存在的缺陷包括卡扣连接结构拆装需借助工具撬动,操作繁琐,且长期使用易老化断裂,导致滤芯更换维护不便;再者密封结构设计单一,仅依赖卡扣贴合密封,密封性能不足,易出现漏水问题,影响使用体验;最后就是滤芯安装缺乏精准定位与稳固连接结构,易发生偏移松动,不仅降低过滤稳定性,还进一步加剧密封失效风险,且无专门手持操作部件,拆装过程中易触碰污染滤芯,且拆卸效率低,给用户日常维护带来诸多困扰,难以满足按摩浴缸对过滤器便捷维护与可靠密封的使用需求
[0008]本实用新型的有益效果是:本实用新型通过手持旋钮搭配螺纹连接结构,实现滤纸筒芯无工具快速拆装,操作简单高效,极大提升更换维护便捷性;通过密封环与密封环槽、连接凸起环与卡装槽形成双重密封,密封连接性好,有效杜绝渗漏问题;通过螺纹连接与卡装定位配合,使滤纸筒芯安装稳固不易偏移,保障过滤稳定性,同时拆分式结构让滤芯更换更便捷,降低维护成本,整体结构适配按摩浴缸的使用场景,实用性与可靠性大幅提升。
Smart Images

Figure CN224807077U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bathroom equipment technology, specifically to a filter for a massage bathtub. Background Technology
[0002] Bathtub water filters, as a core component of whirlpool bathtubs and regular bathtubs, are primarily used to intercept pollutants such as hair, fibers, and impurities during water circulation, preventing pipe and nozzle blockages. They also ensure clean bathtub water and extend the lifespan of bathroom fixtures, making them an indispensable key component of the bathtub water circulation system. Currently, bathtub water filters on the market mainly consist of filter cartridges, bases, and seals. Common connection methods include snap-fit, plug-in, and simple threaded connections. However, existing technologies have several drawbacks. Firstly, snap-fit connections require tools for prying and disassembly, making operation cumbersome. Furthermore, they are prone to aging and breakage with prolonged use, leading to inconvenient filter cartridge replacement and maintenance. Secondly, the sealing structure is simplistic, relying solely on snap-fit sealing, resulting in insufficient sealing performance and potential leaks, impacting the user experience. Finally, filter cartridge installation lacks precise positioning and a secure connection structure, making it prone to shifting and loosening. This not only reduces filtration stability but also increases the risk of seal failure. Additionally, the lack of a dedicated handheld operating component makes it easy to contaminate the filter cartridge during disassembly and assembly, and the low disassembly efficiency causes numerous inconveniences for daily maintenance, failing to meet the needs of whirlpool bathtubs for convenient filter maintenance and reliable sealing. Therefore, this utility model proposes a filter for a massage bathtub to overcome the shortcomings of the existing technology. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a filter for a massage bathtub.
[0004] The technical solution adopted in this utility model is as follows: A filter for a massage bathtub, characterized in that it includes a filter base and a filter paper core, the filter paper core being composed of a filter top cover, a filter paper core, and a filter bottom cover, the filter paper core being fixedly installed between the filter top cover and the filter bottom cover, the bottom of the filter bottom cover having a hollow connecting protrusion ring, the top of the connecting protrusion ring extending into the space between the filter paper cores, the top of the filter base having an annular groove wall for the filter paper core to be fitted, the inner diameter of the annular groove wall being larger than the outer diameter of the filter bottom cover, the top center and side of the filter base having a water guide pipe communicating with each other, the top of the filter base having a connecting installation pipe communicating with the water guide pipe, the outer side of the connecting installation pipe having an external thread, and the inner side wall of the connecting protrusion ring having an internal thread that is threaded to the connecting installation pipe.
[0005] Preferably, a handheld knob is fixedly provided on the top of the filter cover.
[0006] Preferably, the filter base is provided with a sealing ring groove, and the top of the filter base is provided with a sealing ring that engages with the sealing ring groove.
[0007] Preferably, the top of the filter base is provided with a mounting groove that abuts against the bottom of the connecting protrusion ring.
[0008] The beneficial effects of this utility model are as follows: This utility model achieves tool-free quick assembly and disassembly of the filter paper cartridge through a handheld knob combined with a threaded connection structure, making operation simple and efficient, and greatly improving the convenience of replacement and maintenance; the double seal formed by the sealing ring and sealing ring groove, and the connecting protrusion ring and the snap-fit groove, provides good sealing connection and effectively prevents leakage; the threaded connection and snap-fit positioning ensure that the filter paper cartridge is installed firmly and is not prone to displacement, ensuring filtration stability; at the same time, the detachable structure makes filter cartridge replacement more convenient and reduces maintenance costs; the overall structure is suitable for the use of massage bathtubs, greatly improving practicality and reliability. Attached Figure Description
[0009] Figure 1 : A three-dimensional structural schematic diagram of this utility model.
[0010] Figure 2 : A schematic diagram of the structure of the filter paper core of this utility model.
[0011] Figure 3 This utility model Figure 2 A structural diagram from another perspective.
[0012] Figure 4 : A schematic diagram of the structure of the filter base of this utility model.
[0013] In the diagram: 001, filter base; 002, filter paper core; 210, filter top cover; 211, hand knob; 220, filter paper core; 230, filter bottom cover; 231, connecting protrusion ring; 2311, internal thread; 232, sealing ring groove; 233, sealing ring; 110, ring groove wall; 120, water guide pipe; 130, connecting installation pipe; 131, external thread; 101, clamping groove. Detailed Implementation
[0014] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0015] like Figure 1-4As shown, a filter for a massage bathtub includes a filter base 001 and a filter paper core 002. The filter paper core 002 is composed of a filter top cover 210, a filter paper core 220, and a filter bottom cover 230. The filter paper core 220 is fixedly installed between the filter top cover 210 and the filter bottom cover 230. The bottom of the filter bottom cover 230 is provided with a hollow connecting protrusion ring 231, and the top of the connecting protrusion ring 231 extends into the filter paper core 220. The top of the filter base 001 is provided with an annular groove wall 110 for the filter paper core 002 to be fitted, and the inner diameter of the annular groove wall 110 is larger than the outer diameter of the filter bottom cover 230. A water guide pipe 120 is provided at the top center and side of the filter base 001. A connecting installation pipe 130 is provided at the top of the filter base 001 and communicates with the water guide pipe 120. The outer side of the connecting installation pipe 130 is provided with an external thread 131, and the inner side wall of the connecting protrusion ring 231 is provided with an internal thread 2311 that is threadedly connected to the connecting installation pipe 130.
[0016] This solution is further optimized as follows: Figure 1-4 As shown, a hand-held knob 211 is fixedly installed on the top of the filter cover 210. After the filter paper core 002 is installed, the filter paper core 002 is rotated by manually squeezing the hand-held knob 211 so that the filter paper core 002 is installed on the filter base 001.
[0017] This solution is further optimized as follows: Figure 1-4 As shown, the filter base cover 230 is provided with a sealing ring 232, and the top of the filter base 001 is provided with a sealing ring 233 that engages with the sealing ring groove 232. When the filter paper core 002 is installed, the sealing ring groove 232 at the bottom of the filter base cover 230 is inserted into the sealing ring 233 to further achieve a seal and prevent water leakage.
[0018] This solution is further optimized as follows: Figure 1-4 As shown, the top of the filter base 001 is provided with a mounting groove 101 that abuts against the bottom of the connecting protrusion ring 231. The connecting protrusion ring 231 at the bottom of the filter paper core 002 abuts against the mounting groove 101 to achieve a preliminary seal and prevent water leakage.
[0019] The installation steps of this utility model are as follows: First, fix the filter base 001 in the designated position of the massage bathtub through the preset mounting hole. Then, connect and fix the connecting mounting tube 130 of the filter base 001 to the water guide pipe of the bathtub to ensure that the water guide pipe 120 is unobstructed. Hold the hand knob 211 on the filter top cover 210 and align the connecting protrusion ring 231 at the bottom of the filter paper core 002 with the connecting mounting tube 130 of the filter base 001. Rotate the hand knob 211 clockwise so that the inner thread 2311 on the inner side of the connecting protrusion ring 231 engages and locks with the outer thread 131 on the outer side of the connecting mounting tube 130 until the bottom of the connecting protrusion ring 231 abuts into the locking groove 101. At the same time, the sealing ring groove 232 on the filter bottom cover 230 is completely inserted into the sealing ring 233, completing the double sealing and fixing.
[0020] Filtration principle: When the massage bathtub is running, the water flows through the water guide pipe 120 into the connecting installation pipe 130, and is guided to the inside of the filter paper core 220 through the connecting protrusion ring 231. When the water flows through the filter layer of the filter paper core 220, impurities are intercepted and filtered. The purified water flows out from the outside of the filter paper core 220 into the bathtub, realizing circulation filtration.
[0021] Disassembly and Replacement: When the filter paper core 220 needs to be replaced, rotate the hand knob 211 counterclockwise to loosen the threaded connection between the internal thread 2311 and the external thread 131. Lift the hand knob 211 upwards to remove the filter paper core 002. Disassemble the fixing structure of the filter top cover 210 and the filter bottom cover 230. After replacing the filter paper core 220, reassemble the filter paper core 002 and then reset it according to the above installation steps. No additional tools are required throughout the process, making it efficient and hygienic. The positional relationships described in the figures are for illustrative purposes only and should not be construed as limiting this patent. Clearly, the above embodiments of this utility model are merely examples to clearly illustrate the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.
Claims
1. A filter for a massage bathtub, characterized in that: The filter includes a filter base (001) and a filter paper core (002). The filter paper core (002) is composed of a filter top cover (210), a filter paper core (220), and a filter bottom cover (230). The filter paper core (220) is installed and fixedly disposed between the filter top cover (210) and the filter bottom cover (230). The bottom of the filter bottom cover (230) is provided with a hollow connecting protrusion ring (231), and the top of the connecting protrusion ring (231) extends into the space between the filter paper cores (220). The top of the filter base (001) is provided with a space for the filter paper core (002) to be inserted. 2) The ring groove wall (110) is clamped, and the inner diameter of the ring groove wall (110) is larger than the outer diameter of the filter base (230). The filter base (001) has a water guide pipe (120) connected to the top center and the side. The filter base (001) has a connecting installation pipe (130) connected to the water guide pipe (120) at the top. The connecting installation pipe (130) has an external thread (131) on the outside. The connecting protrusion ring (231) has an internal thread (2311) that is threaded to the connecting installation pipe (130).
2. The filter for a massage bathtub according to claim 1, characterized in that: A handheld knob (211) is fixedly installed on the top of the filter cover (210).
3. The filter for a massage bathtub according to claim 1, characterized in that: The filter base (230) is provided with a sealing ring groove (232), and the top of the filter base (001) is provided with a sealing ring (233) that engages with the sealing ring groove (232).
4. The filter for a massage bathtub according to claim 1, characterized in that: The filter base (001) has a mounting groove (101) at the top that abuts against the bottom of the connecting protrusion ring (231).