WO2023133986A1 - 一种功能型滤芯、过滤结构、净水器和宠物饮水机 - Google Patents

一种功能型滤芯、过滤结构、净水器和宠物饮水机 Download PDF

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WO2023133986A1
WO2023133986A1 PCT/CN2022/078836 CN2022078836W WO2023133986A1 WO 2023133986 A1 WO2023133986 A1 WO 2023133986A1 CN 2022078836 W CN2022078836 W CN 2022078836W WO 2023133986 A1 WO2023133986 A1 WO 2023133986A1
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filter element
lower cover
water
cover
functional filter
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PCT/CN2022/078836
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English (en)
French (fr)
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张天然
姜剑一
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苏州梦工厂信息科技有限公司
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Publication of WO2023133986A1 publication Critical patent/WO2023133986A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water

Definitions

  • the invention relates to the field of water purification, in particular to a functional filter element, a filter structure, a water purifier and a water dispenser for pets.
  • the pet drinking fountains on the market only have a simple filtering effect and have not improved the water quality, resulting in pets not wanting to drink water or unhealthy after drinking water, causing pet health hazards; in addition, the filter element is generally disposable, and it is easy to dirty hands when replacing it. Easy to replace. Moreover, after the filter element is used for a period of time, the water discharge effect is poor, which affects the water discharge.
  • the invention provides a functional filter element, a filter structure, a water purifier and a water dispenser for pets, which can improve the acidity and alkalinity and the taste of the water source for pets, and the replacement of the filter element does not dirty hands and is easy to install.
  • the present invention provides the following technical solutions:
  • a functional filter element characterized in that it comprises:
  • the filter element realizes the filtration of water and adds substances to improve the taste, with a hollow penetrating structure
  • the lower cover is combined with the upper cover to accommodate the filter element, and the bottom of the lower cover is integrally provided with a cylinder with an upper end, so that the cylinder penetrates into the hollow through structure to achieve a tight fit.
  • the bottom of the lower cover has A concave structure, the concave structure goes deep into the cylinder to connect with the opening, and the concave structure is used to closely cooperate with the water supply pipe to realize water supply.
  • the plurality of holes are opened at the bottom edge of the lower cover.
  • the height of the bottom edge of the lower cover from the horizontal plane gradually increases inwardly.
  • a holding structure is provided on the upper surface of the upper cover to facilitate the separation of the upper cover and the lower cover.
  • the holding structure is integrally formed with the upper cover.
  • the column is lower than the upper edge of the lower cover, and when the filter element is inserted and tightly combined with the lower cover and the upper cover, the column, filter element and upper cover form a closed space;
  • the substance is one or more of the following ore particles: tourmaline ore, medical stone, wood fish stone, germanium stone and tourmaline.
  • the present invention also provides a filtering structure, comprising: the above-mentioned functional filter element and a base structure matched with the functional filter element, the base structure has a protrusion structure matched with the concave structure; the protrusion The structure has a water outlet for connecting to a water supply pipe; the base structure also has a space for accommodating water output from the functional filter core structure.
  • the filtering structure also has a housing integrally formed with the base structure, the housing is used to accommodate the functional filter element, and a filtered water outlet is arranged on the upper part of the housing.
  • the present invention also provides a water purifier, comprising the above filter structure and a water supply pump, the water supply pump is connected to the water outlet of the raised structure through a water supply pipeline.
  • the present invention also provides a water dispenser for pets, including the above filter structure.
  • the beneficial effects of the present invention are: 1. While the filter element is filtering water, the micropores in the filter element release substances that are beneficial to health and improve the taste, so that the pH of the water is balanced; The filter material is in contact to avoid dirty hands, and it is easy to disassemble and use; 3. The bottom water outlet structure is adopted, which is easier to discharge water when the filtering effect of the filter element is not good.
  • Fig. 1 is the structural diagram of the functional filter element in embodiment 1;
  • Fig. 2 is the filter structure figure in embodiment 2;
  • Fig. 3 is a structural diagram of a water purifier with a filtering structure
  • Fig. 4 is a structural diagram of a pet water dispenser with a filtering structure.
  • a functional filter element 100 includes an upper cover 1 , a filter element 2 and a lower cover 3 .
  • the upper cover 1; the upper cover 1 is circular and can be made of impermeable material, such as stainless steel or plastic;
  • the filter element 2 realizes the filtration of water and adds substances to improve the taste, and has a hollow penetrating structure 2-1;
  • the filter element 2 can adopt a conventional ceramic filter element or an activated carbon filter element, and has micropores in the filter element 2, adding Minerals are used to improve the mouthfeel and provide the absorbable mineral particles needed by pets.
  • the filter element 2 with different mineral particles can be selected according to the type of pet and the physical condition of the pet (such as physical examination results).
  • the filter element 2 is preferably cylindrical structure, the hollow penetrating structure 2-1 is also cylindrical, and the outer surface of the cylindrical structure and the surface of the middle penetrating structure are preferably concentric cylindrical;
  • the lower cover 3 is combined with the upper cover 1 to accommodate the filter element 2, and the bottom of the lower cover 3 is integrally provided with a cylinder 3-1 with an upper end opening, so that the cylinder 3-1 penetrates the hollow through structure 2-1 to achieve close fit, the bottom of the lower cover 3 has a concave structure, the concave structure goes deep into the cylinder 3-1 to connect the opening, the concave structure is used to closely cooperate with the water supply pipe to realize water supply .
  • the material of the lower cover 3 and the upper cover 1 can be selected from the same impermeable material, such as stainless steel or plastic, preferably plastic material, and the combination of the upper cover 1 and the lower cover 3 can be threaded or inserted Structure: the lower cover 3 has a bottom, and the bottom is integrally formed with a cylinder 3-1 with an upper opening and the inner surface of the hollow penetrating structure 2-1 of the filter element 2.
  • the uppermost part of the cylinder 3-1 is It is best to set several circles of embossed lines to make the two more tightly combined and prevent water leakage. This can ensure that the filter element 2 will not be separated when the water inlet pressure is relatively high. Enter the outside through the filter element 2; in order to achieve the above effects, the side of the filter element 2, such as a cylindrical surface, will be closely combined with the inner surface of the lower cover 3.
  • holes 3 - 2 are provided at the bottom of the lower cover 3 , and the outer surface of the filter element 2 closely fits with the inner cavity of the lower cover 3 .
  • the purpose of setting some holes 3-2 is to see through the filter core 2 in order to facilitate the filtered water to penetrate the filter core 2 through water pressure and gravity, and generally speaking, the water pressure when the filter core 2 is penetrated comes from the water pump pressure.
  • the plurality of holes 3-2 are opened at the bottom edge of the lower cover 3, and the holes are preferably arranged at equal intervals, which is easier to process.
  • the height of the bottom edge of the lower cover 3 inward from the horizontal plane gradually increases. That is to say, the bottom of the lower cover 3 has a concave structure toward the center. The benefit of such arrangement is to facilitate the outflow of filtered water, and the edge of the lower cover 3 supports the entire filter element 2, and this supporting structure is more stable.
  • the upper surface of the upper cover 1 is provided with a gripping structure 4 that facilitates the separation of the upper cover 1 and the lower cover 3 .
  • the holding structure 4 is a handle or a handle, preferably an ergonomic structure convenient to hold, convenient to hold by the thumb and forefinger, such as a structure that is convenient for rotation and pulling (such as the holding structure 4 is a substantially rectangular parallelepiped structure and the upper part protruding from the bottom).
  • the gripping structure 4 is integrally formed with the upper cover 1 .
  • the column 3-1 is lower than the upper edge of the lower cover 3.
  • the filter element 2 When the filter element 2 is inserted and tightly combined with the lower cover 3 and the upper cover 1, the column 3-1, The filter element 2 and the upper cover 1 form an airtight space; thus, the water supply from the water pipe can fill the airtight space, and the pressure of the water supply makes the water in the airtight space directly penetrate the airtight space.
  • the combined watertight performance and water pressure resistance performance of the upper cover 1 and the lower cover 3 should meet the requirements.
  • the purpose of this setting is to increase the water inlet pressure, and on the other hand, it also makes the water pipe and the recessed structure fit more closely. .
  • the substance is one or more of the following ore particles: tourmaline ore, medical stone, wood fish stone, germanium stone and tourmaline.
  • This embodiment provides a filter structure 200, as shown in Figure 2, including the functional filter element 100 in Embodiment 1 and a base structure 5 that cooperates with the functional filter element 100, the base structure 5 has a The convex structure 5-1 matched with the concave structure; the convex structure 5-1 has a water outlet 5-2 for connecting the water supply pipe; Space.
  • the filter structure also has a housing 6 integrally formed with the base structure 5, the housing 6 is used to accommodate the functional filter element 100, and a filtered water outlet 7 is arranged on the upper part of the housing 6 .
  • the casing 6 is also provided with a flip top cover assembly 8
  • the flip top cover assembly 8 is used to close the casing 6, and the flip top cover assembly 8 includes a The rotating shaft 8-1, the shaft sleeve 8-2 matched with the rotating shaft, and the cover plate 8-3 integrally connected with the shaft sleeve.
  • This embodiment provides a water purifier, as shown in FIG. 3 , including the filter structure 200 in Embodiment 2 and a water supply pump 9 , and the water supply pump 9 is connected to the water outlet of the protruding structure 5 - 1 through a water supply pipeline.
  • This embodiment provides a water dispenser for pets, as shown in Figure 4, including the filter structure 200 in Embodiment 2.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Feeding And Watering For Cattle Raising And Animal Husbandry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

一种功能型滤芯（100）包括：上盖（1）、滤芯（2）和下盖（3），所述滤芯（100）实现对水的过滤并添加改善口感的物质，具有中空贯穿结构；所述下盖（3）与所述上盖（1）结合容纳所述滤芯（100），所述下盖（3）底部一体设置有上端开口的柱体（3-1），使得所述柱体（3-1）穿入所述中空贯穿结构实现紧密配合，所述下盖（3）底部具有内凹结构，内凹结构深入到柱体内连接所述开口，所述内凹结构用于与供水管紧密配合实现供水。该滤芯对水进行过滤的同时，释放有益健康及改善口感的物质，可使水酸碱度平衡。

Description

一种功能型滤芯、过滤结构、净水器和宠物饮水机 技术领域
本发明涉及净水领域，具体涉及一种功能型滤芯、过滤结构、净水器和宠物饮水机。
背景技术
目前市场上宠物饮水机只有简单的过滤效果，没有对水质进行改善，导致宠物不愿饮水或饮水后不健康，造成宠物健康隐患；另外滤芯一般为抛弃式的，在进行更换时容易脏手，不便于更换。而且滤芯在使用一段时间后，出水效果较差，影响出水。
发明内容
本发明提供一种功能型滤芯、过滤结构、净水器和宠物饮水机，能够改善宠物水源的酸碱度及口感，而且更换滤芯不脏手，便于安装。为解决上述技术问题，本发明提供如下技术方案：
一种功能型滤芯，其特征在于，包括：
上盖；
滤芯，实现对水的过滤并添加改善口感的物质，具有中空贯穿结构；
下盖，与所述上盖结合容纳所述滤芯，所述下盖底部一体设置有上端开口的柱体，使得所述柱体穿入所述中空贯穿结构实现紧密配合，所述下盖底部具有内凹结构，所述内凹结构深入到柱体内连接所述开口，所述内凹结构用于与供水管紧密配合实现供水。
较佳地，所述下盖底部设置若干孔，所述滤芯外表面与所述下盖内腔体紧密配合。
较佳地，所述若干孔开设于所述下盖底部边缘处。
较佳地，所述下盖底部边缘处向内距离水平面的高度渐进式增加。
较佳地，所述上盖上表面设置便于操作上盖与下盖分离的握持结构。
较佳地，所述握持结构与所述上盖一体成型。
较佳地，所述柱体低于所述下盖上沿，在置入滤芯并与将下盖和上盖紧密结合时，柱体、滤芯和上盖组成密闭空间；
和/或，所述柱体距离开口处越近，横截面半径越短；
和/或，所述内凹结构的距离开口越近，截面积越小。
较佳地，所述物质为以下矿石颗粒中的一种或多种：托玛琳矿石、麦饭石、木鱼石、锗石和电气石。
本发明还提供一种过滤结构，包括：上述的功能型滤芯以及与所述功能型滤芯配合的底座结构，所述底座结构具有与所述内凹结构相配合的凸起结构；所述凸起结构具有出水口，用于连接供水管道；所述底座结构还具有容纳从所述功能性滤芯结构出水的空间。
较佳地，所述过滤结构还具有与底座结构一体成型的壳体，所述壳体用于容纳所述功能型滤芯，且在所述壳体上部设置过滤水出口。
本发明还提供一种净水器，包括上述的过滤结构以及供水泵，所述供水泵通过供水管道连接凸起结构的出水口。
本发明还提供一种宠物饮水机，包括上述的过滤结构。
本发明的有益效果是：1.滤芯对水进行过滤的同时，通过滤芯内的微孔，释放有益健康及改善口感的物质，使水酸碱度平衡；2.滤芯自带的握持结构不与内部滤材接触，避免脏手，便于拆装使用；3.采用底部出水结构，在滤芯过滤效果欠佳时更易于出水。
附图说明
图1为实施例1中的功能型滤芯结构图；
图2为实施例2中的过滤结构图；
图3为具有过滤结构的净水器结构图；
图4为具有过滤结构的宠物饮水机结构图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
一种功能型滤芯100，如图1所示，包括上盖1、滤芯2和下盖3。
上盖1；所述上盖1为圆形，可采用不透水的材质，如不锈钢或者塑料材质；
滤芯2，实现对水的过滤并添加改善口感的物质，具有中空贯穿结构2-1；滤芯2可采用常规的陶瓷滤芯或者活性炭滤芯，在所述滤芯2内具有微孔，在微孔内加入矿物质来改善口感和提供宠物所需要的能吸收的矿物质颗粒，可根据宠物类型以及宠物身体状况(如体检结果)选用具有不同的矿物质颗粒的滤芯2，另外，滤芯2优选为圆柱状结构，所述中空贯穿结构2-1也为圆柱形，所述圆柱结构的外表面与所述中贯穿结构的表面优选为同心圆柱形；
下盖3，与所述上盖1结合容纳所述滤芯2，所述下盖3底部一体设置有上端开口的柱体3-1，使得所述柱体3-1穿入所述中空贯穿结构2-1实现紧密配合，所述下盖3底部具有内凹结构，所述内凹结构深入到柱体3-1内连接所述开口，所述内凹结构用于与供水管紧密配合实现供水。所述下盖3和上盖1材质可选为相同的不透水的材质，如不锈钢或塑料，优选为塑料材质， 所述上盖1和下盖3相结合的方式可为螺纹配合或者插接结构；所述下盖3具有底部，底部一体成型有上端开口与所述滤芯2的中空贯穿结构2-1的内表面紧密贴合的柱体3-1，所述柱体3-1上最好能够设置几圈凸纹，用以使得两者结合的更为紧密，防止漏水，这样能够保障在进水压力比较大的情况下不至于使得滤芯2脱离，另外，也使得所有的水都是经过滤芯2进入到外部的；为了实现上述效果，滤芯2的侧面如圆柱面要与下盖3的内表面结合也要紧密。
本实施例中，所述下盖3底部设置若干孔3-2，所述滤芯2外表面与所述下盖3内腔体紧密配合。设置若干孔3-2的目的是为了便于过滤后的水能够透出滤芯2，通过水压和重力透出滤芯2，而且一般情况下，透出滤芯2时的水压来自于水泵压力。
作为一种优选的实施方式，所述若干孔3-2开设于所述下盖3底部边缘处，所述开孔优选设置为等间隔设置，这样更容易加工。
作为一种优选的实施方式，所述下盖3底部边缘处向内距离水平面的高度渐进式增加。也即在下盖3底部向中心处呈内凹结构，这样设置的好处在于便于过滤水的流出，而且，在下盖3的边缘支撑整个滤芯2，这种支撑结构更稳固。
本实施例中，所述上盖1上表面设置便于操作上盖1与下盖3分离的握持结构4。所述握持结构4为手柄或者把手，优选为方便握持的人体工学结构，便于拇指和食指握持，如设置为便于旋转和提拉的结构(如握持结构4为大体长方体结构且上部突出于下部)。
作为一种优选的实施方式，所述握持结构4与所述上盖1一体成型。
作为一种优选的实施方式，所述柱体3-1低于所述下盖3上沿，在置入滤芯2并与将下盖3和上盖1紧密结合时，柱体3-1、滤芯2和上盖1组成密闭空间；这样就使得水管供水能够充满密闭空间，供水压力使得密闭空间内 的水能够直接透过滤芯2。上盖1和下盖3的结合的水密性能和抗水压力性能要满足要求。
作为一种优选的实施方式，所述柱体3-1距离开口处越近，横截面半径越短；也即柱体3-1总体呈收缩状，这样就使得进水压力更大。
作为一种优选的实施方式，所述内凹结构的距离开口越近，截面积越小，这样设置的目的一方面使得进水压力大，另外一方面也使得水管与内凹结构的配合更紧密。
本实施例中，所述物质为以下矿石颗粒中的一种或多种：托玛琳矿石、麦饭石、木鱼石、锗石和电气石。
实施例2
本实施例提供一种过滤结构200，如图2所示，包括实施例1中的功能型滤芯100以及与所述功能型滤芯100配合的底座结构5，所述底座结构5具有与所述内凹结构相配合的凸起结构5-1；所述凸起结构5-1具有出水口5-2，用于连接供水管道；所述底座结构5还具有容纳从所述功能性滤芯2结构出水的空间。
本实施例中，所述过滤结构还具有与底座结构5一体成型的壳体6，所述壳体6用于容纳所述功能型滤芯100，且在所述壳体6上部设置过滤水出口7。
本实施例中，所述壳体6上还设置有翻转上盖组件8，所述翻转上盖组件8用于封闭所述壳体6，所述翻转上盖组件8包括连接在壳体上的旋转轴8-1、与所述旋转轴配合的轴套8-2以及与所述轴套一体连接的盖板8-3。
实施例3
本实施例提供一种净水器，如图3所示，包括实施例2中的过滤结构200以及供水泵9，所述供水泵9通过供水管道连接凸起结构5-1的出水口。
实施例4
本实施例提供一种宠物饮水机，如图4所示，包括实施例2中的过滤结 构200。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (12)

  1. 一种功能型滤芯，其特征在于，包括：
    上盖；
    滤芯，实现对水的过滤并添加改善口感的物质，具有中空贯穿结构；
    下盖，与所述上盖结合容纳所述滤芯，所述下盖底部一体设置有上端开口的柱体，使得所述柱体穿入所述中空贯穿结构实现紧密配合，所述下盖底部具有内凹结构，所述内凹结构深入到柱体内连接所述开口，所述内凹结构用于与供水管紧密配合实现供水。
  2. 如权利要求1所述的功能型滤芯，其特征在于，所述下盖底部设置若干孔，所述滤芯外表面与所述下盖内腔体紧密配合。
  3. 如权利要求2所述的功能型滤芯，其特征在于，所述若干孔开设于所述下盖底部边缘处。
  4. 如权利要求3所述的功能型滤芯，其特征在于，所述下盖底部边缘处向内距离水平面的高度渐进式增加。
  5. 如权利要求1所述的功能型滤芯，其特征在于，所述上盖上表面设置便于操作上盖与下盖分离的握持结构。
  6. 如权利要求5所述的功能型滤芯，其特征在于，所述握持结构与所述上盖一体成型。
  7. 如权利要求1所述的功能型滤芯，其特征在于，所述柱体低于所述下盖上沿，在置入滤芯并与将下盖和上盖紧密结合时，柱体、滤芯和上盖组成密闭空间；
    和/或，所述柱体距离开口处越近，横截面半径越短；
    和/或，所述内凹结构的距离开口越近，截面积越小。
  8. 如权利要求1-7任一项所述的功能型滤芯，其特征在于，所述物质为以下矿石颗粒中的一种或多种：托玛琳矿石、麦饭石、木鱼石、锗石和电气石。
  9. 一种过滤结构，其特征在于，包括：如权利要求1-8任一项所述的功能型滤芯以及与所述功能型滤芯配合的底座结构，所述底座结构具有与所述内凹结构相配合的凸起结构；所述凸起结构具有出水口，用于连接供水管道；所述底座结构还具有容纳从所述功能性滤芯结构出水的空间。
  10. 如权利要求9所述的过滤结构，其特征在于，所述过滤结构还具有与底座结构一体成型的壳体，所述壳体用于容纳所述功能型滤芯，且在所述壳体上部设置过滤水出口。
  11. 一种净水器，其特征在于，包括如权利要求9-10任一项所述的过滤结构以及供水泵，所述供水泵通过供水管道连接凸起结构的出水口。
  12. 一种宠物饮水机，其特征在于，包括如权利要求9-10任一项所述的过滤结构。
PCT/CN2022/078836 2022-01-14 2022-03-02 一种功能型滤芯、过滤结构、净水器和宠物饮水机 WO2023133986A1 (zh)

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CN103170168A (zh) * 2013-03-14 2013-06-26 马明孟 滤芯及饮水机
CN203379674U (zh) * 2013-05-23 2014-01-08 株式会社保美纯 净水器
CN107691264A (zh) * 2017-11-15 2018-02-16 广州集特尚文化创意有限公司 一种宠物喂水器
WO2018184544A1 (zh) * 2017-04-06 2018-10-11 佛山市顺德区美的饮水机制造有限公司 复合滤芯及净水设备
CN212697146U (zh) * 2020-07-23 2021-03-16 深圳市皓邦生物医药有限公司 一种宠物饮水机
CN113417338A (zh) * 2021-07-29 2021-09-21 宁波世唯国际贸易有限公司 一种带过滤功能的厨房花洒头及抽拉式水龙头

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011200816A (ja) * 2010-03-26 2011-10-13 Toray Ind Inc 蛇口直結型浄水器
CN103170168A (zh) * 2013-03-14 2013-06-26 马明孟 滤芯及饮水机
CN203379674U (zh) * 2013-05-23 2014-01-08 株式会社保美纯 净水器
WO2018184544A1 (zh) * 2017-04-06 2018-10-11 佛山市顺德区美的饮水机制造有限公司 复合滤芯及净水设备
CN107691264A (zh) * 2017-11-15 2018-02-16 广州集特尚文化创意有限公司 一种宠物喂水器
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CN113417338A (zh) * 2021-07-29 2021-09-21 宁波世唯国际贸易有限公司 一种带过滤功能的厨房花洒头及抽拉式水龙头

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