WO2018214175A1 - 用于滤芯结构的泵头、滤芯结构及净水器 - Google Patents

用于滤芯结构的泵头、滤芯结构及净水器 Download PDF

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Publication number
WO2018214175A1
WO2018214175A1 PCT/CN2017/086595 CN2017086595W WO2018214175A1 WO 2018214175 A1 WO2018214175 A1 WO 2018214175A1 CN 2017086595 W CN2017086595 W CN 2017086595W WO 2018214175 A1 WO2018214175 A1 WO 2018214175A1
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WIPO (PCT)
Prior art keywords
filter
chamber
pump
structure according
casing
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PCT/CN2017/086595
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English (en)
French (fr)
Inventor
李杨敏
莫祖栋
Original Assignee
佛山市顺德区美的饮水机制造有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201720589067.2U external-priority patent/CN206837866U/zh
Priority claimed from CN201710376360.5A external-priority patent/CN108927000B/zh
Application filed by 佛山市顺德区美的饮水机制造有限公司, 美的集团股份有限公司 filed Critical 佛山市顺德区美的饮水机制造有限公司
Publication of WO2018214175A1 publication Critical patent/WO2018214175A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/08—Apparatus therefor
    • 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
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis

Definitions

  • the invention relates to the field of water treatment, in particular to a pump head, a filter element structure and a water purifier for a filter core structure.
  • the working principle of the water purifier is: through the filtration of the filter membrane, the raw water such as municipal tap water and well water is purified into drinking water that the user can drink, and at the same time a certain proportion of waste water is generated.
  • the general water purifier has a higher wastewater ratio, resulting in a large waste of water resources.
  • the wastewater utilization rate is often increased by connecting a wastewater return line at the wastewater end of the membrane.
  • the water flowing from the wastewater return line to the membrane is concentrated water and the flow rate is low, the service life of the membrane is greatly increased. influences.
  • the main object of the present invention is to provide a pump head, a filter element structure and a water purifier for a filter core structure, which aims to solve the prior art technology for increasing the utilization rate of waste water and causing a great influence on the service life of the filter membrane. problem.
  • a pump head for a filter cartridge structure includes a filter bottle cap that is open at one end, a pump casing disposed in the filter bottle cap, and a return pump; the pump casing includes a first chamber that communicates with each other a chamber and a second chamber, the first chamber being in communication with the waste end of the filter membrane; the return pump being housed in the second chamber, and the second chamber being open for filtering The waste water outlet of the membrane connected to the water inlet end.
  • the pump casing includes a connecting portion and a first casing and a second casing disposed on opposite sides of the connecting portion, the first casing forming the first chamber, and the second casing forming The second chamber, and the first chamber and the second chamber are separated by a connecting portion; an end of the first housing is connected to the filter membrane, and the second housing is The end is connected to the inner wall of the filter bottle cap.
  • the connecting portion is provided with a through hole, the through hole is covered with a one-way valve diaphragm, and the one-way valve diaphragm only allows water to flow from the first chamber to the second chamber One-way flow.
  • the second casing is circumferentially closed, and the second casing is provided with a through hole to form the waste water outlet.
  • the second casing is circumferentially open for forming the waste water outlet.
  • the pump head for the filter element structure further includes a gear disposed outside the filter bottle cover, the gear is provided with a connecting shaft, and the return pump is coupled to the connecting shaft.
  • a first flow passage is formed between an outer wall of the pump casing and an inner wall of the filter bottle cover, the first flow passage is for communicating with a water inlet end of the filter membrane, the waste water outlet and the first flow passage Connected.
  • the present invention also provides a filter cartridge structure comprising a filter bottle having an opening at one end, a filter membrane disposed in the filter bottle, and a pump for a filter cartridge structure according to any of the above a head end; the open end of the filter bottle cap is connected to the open end of the filter bottle; the waste water outlet is in communication with the water inlet end of the filter membrane; the end of the pump chamber on which the first chamber is located The filter membrane is connected and the first chamber is in communication with the wastewater end of the filter membrane.
  • a second flow path is formed between an outer surface of the filter membrane and an inner wall of the filter bottle, one end of the second flow channel is in communication with the waste water outlet, and the other end is connected to the filter membrane The water inlet is connected.
  • the present invention also provides a water purifier comprising an inlet pipe, an outlet pipe, and a filter element structure according to any one of the above; the inlet pipe is provided at one end for a pipe with tap water Connected, the other end is in communication with the raw water inlet on the filter structure; one end of the outlet pipe is connected to the clean water end of the filter membrane, and the other end is used to connect the faucet.
  • the waste water generated after the filter membrane purifies the raw water enters the second chamber from the first chamber and flows back to the filter membrane at a relatively fast flow rate under the action of the reflux pump, and is reused.
  • the waste water produced by the filter membrane is reused, thereby improving the utilization rate of the wastewater; on the other hand, since the flow rate of the waste water flowing to the filter membrane is fast, the flow rate of the water flow in the filter membrane is correspondingly increased. Thereby, the filter membrane is washed, thereby increasing the service life of the filter membrane.
  • FIG. 1 is an exploded perspective view of a pump head for a filter cartridge structure according to an embodiment of the present invention
  • FIG. 2 is a cross-sectional view showing the structure of a filter element in accordance with an embodiment of the present invention.
  • first, second, and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms "connected”, “fixed” and the like should be understood broadly, unless otherwise clearly defined and limited.
  • “fixed” may be a fixed connection, or may be a detachable connection, or may be integrated; It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements unless explicitly defined otherwise.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the invention proposes a pump head for a filter cartridge structure.
  • the pump head for the filter core structure comprises a filter bottle cover with one end open, a pump casing 2 disposed inside the filter bottle cover 1 and a return pump 4; the pump casing 2
  • the first chamber 21 and the second chamber 23 are connected to each other, and the first chamber 21 is in communication with the waste end 82 of the filter membrane 8; the return pump 4 is housed in the second chamber 23, and the second chamber 23 is A waste water outlet 231 for communicating with the water inlet end 81 of the filter membrane 8 is provided in the upper opening.
  • the waste water generated by the filter 8 after purifying the raw water enters the second chamber 23 from the first chamber 21 and flows back to the filter membrane 8 at a relatively fast flow rate under the action of the reflux pump 4.
  • It is reused please refer to Figure 2 for the direction of water flow.
  • the wastewater generated by the membrane 8 is reused, thereby improving the utilization rate of the wastewater; on the other hand, since the flow rate of the wastewater flowing to the membrane 8 is fast, the flow rate of the water in the membrane 8 is also Correspondingly, the filter membrane 8 is flushed, thereby increasing the service life of the filter membrane 8.
  • the first chamber 21 and the second chamber 23 are in communication via the one-way valve diaphragm 3, and the one-way valve diaphragm 3 only allows water to flow from the first chamber 21 to the second chamber. Chamber 23 flows in one direction.
  • the pump casing 2 includes a connecting portion 25 and a first casing 22 and a second casing 24 disposed on opposite sides of the connecting portion 25, the first casing 22 forming a first chamber 21, and the second casing 24 is formed
  • the second chamber 23, and the first chamber 21 and the second chamber 23 are separated by a connecting portion 25; the end of the first housing 22 is connected to the filter 8, and the end of the second housing 24 is connected to the filter bottle
  • the inner wall of the cover 1 is connected.
  • the end of the first casing 22 is sealingly connected with the filter membrane 8 by a waterway seal, so that the waste water generated by the filter membrane 8 flows directly to the first chamber 21; the end of the second casing 24 can also be a waterway seal and filter.
  • the reflux pump 4 is preferably a vane type reflux pump.
  • the connecting portion 25 is provided with a through hole 251 which is covered with a check valve diaphragm 3 , and the check valve diaphragm 3 only allows water to flow from the first chamber 21 to the second chamber 23 .
  • the waste water from the filter membrane 8 flows into the second chamber 23 from the through hole 251 through the first chamber 21, and the check valve diaphragm 3 is disposed on the through hole 251, so that the waste water of the second chamber 23 is not directed to the first chamber Chamber 21 flows and the wastewater has a relatively fast flow rate.
  • the waste water outlet 231 opened on the second chamber 23 may be formed in various manners, such as circumferentially closing the second casing 24, opening a through hole in the second casing 24 to form a waste water outlet 231; or, second The casing 24 is circumferentially opened to form a waste water outlet 231, at which time the waste water can flow out from the open port of the second casing 24 in the direction of rotation of the blades on the return pump 4.
  • the pump head for the filter element structure further includes a gear 5 disposed outside the filter bottle cover 1.
  • the gear 5 is provided with a connecting shaft 51, and the return pump 4 is connected to the connecting shaft 51.
  • the operation of the return pump 4 is driven by the gear 5, which simplifies the overall structure of the pump head.
  • the filter bottle cover 1 includes a top portion 11 and a side portion 12 disposed around the top portion 11, and the gear 5 is disposed outside the top portion 11. Since the gear 5 needs to be rotated to drive the return pump 4 to operate, and the gear 5 is disposed outside the top portion 11, the entire weight of the filter element structure can be utilized to stabilize the rotation of the gear 5.
  • a first flow path 6 is formed between the outer wall of the pump casing 2 and the inner wall of the filter bottle cover 1, the first flow path 6 is for communicating with the water inlet end 81 of the filter membrane 8, and the waste water outlet 231 is in communication with the first flow path 6.
  • the water flow passage that is, the first flow passage 6, is formed by the gap between the outer wall of the pump casing 2 and the inner wall of the filter bottle cover 1, and the waste water in the second chamber 23 flows from the waste water outlet 231 into the first flow passage 6, and along The first flow path 6 flows back to the water inlet end 81 of the filter membrane 8 for purification. It is of course also possible to provide a conduit between the waste water outlet 231 and the water inlet end 81 of the filter membrane 8 to reintroduc the waste water in the second chamber 23 into the filter membrane 8.
  • the filter bottle cap 1 is further provided with a raw water inlet 13 communicating with the water inlet end 81 of the filter membrane 8, and the raw water from the outside flows from the raw water inlet 13 to the filter membrane 8 to be purified.
  • the raw water here may be water treated by a filter membrane such as PP cotton, granular carbon or compressed carbon, such as municipal tap water or well water.
  • the raw water inlet 13 can be in communication with the first flow path 6, and the raw water from the outside flows from the raw water inlet 13 into the first flow path 6 and flows to the filter membrane 8 for purification.
  • the booster pump can be set in the following two ways:
  • the booster pump is integrated in the pump head of the present invention, the raw water enters the water inlet end 81 of the filter membrane 8 after passing through the booster pump;
  • the booster pump is arranged separately from the filter element structure, and the pressurized water enters the filter bottle 7 through the pipe and flows into the water inlet end 81 of the filter membrane 8.
  • the filter bottle cover 1 is further provided with a waste water port, and the user can discharge the waste water generated by the filter film 8 from the waste water port at intervals.
  • the filter cartridge structure includes a filter bottle 7 having an opening at one end, a filter membrane 8 disposed in the filter flask 7, and a pump head for the filter cartridge structure according to any of the above embodiments.
  • the open end of the filter bottle cap 1 is connected to the open end of the filter bottle 7;
  • the waste water outlet 231 is in communication with the water inlet end 81 of the filter membrane 8;
  • the end of the pump casing 2 where the first chamber 21 is located is connected to the filter membrane 8, and
  • the first chamber 21 is in communication with the wastewater end 82 of the membrane 8.
  • the specific structure of the pump head for the filter structure is referred to the above embodiment. Since the filter structure adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are provided. I will not repeat them one by one.
  • a second flow path 9 is formed between the outer surface of the filter membrane 8 and the inner wall of the filter bottle 7, and one end of the second flow path 9 communicates with the waste water outlet 231, and the other end is connected to the water inlet end 81 of the filter membrane 8. through.
  • the water flow passage that is, the second flow passage 9, is formed by the gap between the outer surface of the filter membrane 8 and the inner wall of the filter bottle 7, and it can be understood that, at this time, the open end of the filter bottle cap 1 and the filter bottle 7 The open end requires a sealed connection.
  • the first flow path 6 When the first flow path 6 is formed between the outer wall of the pump casing 2 and the inner wall of the filter bottle cover 1, the first flow path 6 communicates with the second flow path 9, so that the wastewater of the second chamber 23 sequentially follows the first flow path. 6.
  • the second flow path 9 enters the filter membrane 8. In the present embodiment, there is no need to provide a pipe between the waste water outlet 231 opened in the second chamber 23 and the water inlet end 81 of the filter membrane 8 to form a water flow passage, which simplifies the structure.
  • the invention also provides a water purifier comprising an inlet pipe, an outlet pipe and a filter element structure according to any of the above embodiments; one end of the inlet pipe is connected to the pipeline of the tap water, and the other end is connected to the filter structure
  • the raw water inlet 13 is connected; one end of the outlet pipe is connected to the clean water end of the filter membrane 8, and the other end is used to connect the faucet.
  • the specific structure of the filter element structure is referred to the above embodiment. Since the water purifier adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are eliminated. Narration.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

一种用于滤芯结构的泵头、滤芯结构及净水器，其中，该用于滤芯结构的泵头包括一端开口的滤瓶盖（1）、设置在所述滤瓶盖（1）内的泵壳（2）以及回流泵（4）；所述泵壳（2）包括相互连通的第一腔室（21）和第二腔室（23），所述第一腔室（21）与所述滤膜（8）的废水端（82）相连通；所述回流泵（4）收容于所述第二腔室（23）内，且所述第二腔室（23）上开设有用于与滤膜（8）的入水端（81）相连通的废水出口（231）；该用于滤芯结构的泵头、滤芯结构及净水器可以实现在提高废水利用率的同时，延长滤膜的使用寿命。

Description

用于滤芯结构的泵头、滤芯结构及净水器
技术领域
本发明涉及水处理领域，尤其涉及一种用于滤芯结构的泵头、滤芯结构及净水器。
背景技术
随着人们生活水平的提高，人们对饮用水的水质提出了更高要求，净水器也因此受到了广泛关注。净水器的工作原理是：通过滤膜的过滤作用，将市政自来水、井水等原水净化为用户可饮用的饮用水，并同时产生一定比例的废水。但是一般的净水器具有较高的废水比，造成了水资源的大量浪费。目前常通过在滤膜的废水端连接一个废水回流管路来提高废水利用率，但由于从废水回流管路流向滤膜的水是浓缩水且流速较低，导致滤膜的使用寿命受到较大影响。
发明内容
本发明的主要目的在于提供一种用于滤芯结构的泵头、滤芯结构及净水器，旨在解决现有技术中因提高废水利用率，导致对滤膜的使用寿命产生较大影响的技术问题。
为实现上述目的，本发明提供的用于滤芯结构的泵头包括一端开口的滤瓶盖、设置在所述滤瓶盖内的泵壳以及回流泵；所述泵壳包括相互连通的第一腔室和第二腔室，所述第一腔室与所述滤膜的废水端相连通；所述回流泵收容于所述第二腔室内，且所述第二腔室上开设有用于与滤膜的入水端相连通的废水出口。
优选地，所述泵壳包括连接部以及设置在连接部相对两侧的第一壳体和第二壳体，所述第一壳体形成所述第一腔室，所述第二壳体形成所述第二腔室，且所述第一腔室和所述第二腔室通过连接部相隔离；所述第一壳体的端部与所述滤膜连接，所述第二壳体的端部与所述滤瓶盖的内壁连接。
优选地，所述连接部上开设有贯通孔，所述贯通孔上覆盖有单向阀膜片，所述单向阀膜片仅允许水流自所述第一腔室向所述第二腔室单向流动。
优选地，所述第二壳体的周向闭合，且所述第二壳体上开设有通孔以形成所述废水出口。
优选地，所述第二壳体的周向开放，用以形成所述废水出口。
优选地，所述用于滤芯结构的泵头还包括设置在所述滤瓶盖外侧的齿轮，所述齿轮上设置有连接轴，所述回流泵与所述连接轴连接。
优选地，所述泵壳的外壁和所述滤瓶盖的内壁之间形成第一流道，所述第一流道用于与滤膜的入水端相连通，所述废水出口与所述第一流道连通。
为实现上述目的，本发明还提供一种滤芯结构，所述滤芯结构包括一端开口的滤瓶、设置在所述滤瓶中的滤膜以及如上述任一项所述的用于滤芯结构的泵头；所述滤瓶盖的开口端与所述滤瓶的开口端连接；所述废水出口与所述滤膜的入水端相连通；所述泵壳上所述第一腔室所在的一端与所述滤膜连接，且所述第一腔室与所述滤膜的废水端相连通。
优选地，所述滤膜的外表面与所述滤瓶的内壁之间形成有第二流道，所述第二流道的一端与所述废水出口相连通，另一端与所述滤膜的入水端相连通。
为实现上述目的，本发明还提供一种净水器，所述净水器包括进水管、出水管和如上述任一项所述的滤芯结构；所述进水管一端用于与自来水的管路连通，另一端与所述滤芯结构上的原水进口连通；所述出水管一端与所述滤膜的净水端连通，另一端用于连接水龙头。
本发明提出的技术方案中，滤膜净化原水后所产生的废水从第一腔室进入第二腔室并在回流泵的作用下，以较快的流速流回滤膜，被重新利用。在这个过程中，一方面，滤膜产生的废水被重新利用，从而提高了废水利用率；另一方面，由于流向滤膜的废水流速较快，使得水流在滤膜中的流速也相应增加，从而对滤膜起到了冲洗作用，进而提高了滤膜的使用寿命。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本发明一实施例中用于滤芯结构的泵头的分解示意图；
图2为本发明一实施例中滤芯结构的剖视图。
附图标号说明：
标号 名称 标号 名称
1 滤瓶盖 251 贯通孔
11 顶部 3 单向阀膜片
12 侧部 4 回流泵
13 原水进口 5 齿轮
2 泵壳 51 连接轴
21 第一腔室 6 第一流道
22 第一壳体 7 滤瓶
23 第二腔室 8 滤膜
231 废水出口 81 入水端
24 第二壳体 82 废水端
25 连接部 9 第二流道
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
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的一部分实施例，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作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。
需要说明，本发明实施例中所有方向性指示（诸如上、下、左、右、前、后……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，在本发明中如涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“连接”、“固定”等应做广义理解，例如，“固定”可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
另外，本发明各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
本发明提出一种用于滤芯结构的泵头。
请参照图1和图2，在本实施例中，该用于滤芯结构的泵头包括一端开口的滤瓶盖1、设置在滤瓶盖1内的泵壳2以及回流泵4；泵壳2包括相互连通的第一腔室21和第二腔室23，第一腔室21与滤膜8的废水端82相连通；回流泵4收容于第二腔室23内，且第二腔室23上开设有用于与滤膜8的入水端81相连通的废水出口231。
本发明提出的技术方案中，滤膜8净化原水后所产生的废水从第一腔室21进入第二腔室23并在回流泵4的作用下，以较快的流速流回滤膜8，被重新利用，水流方向请参照图2。在这个过程中，一方面，滤膜8产生的废水被重新利用，从而提高了废水利用率；另一方面，由于流向滤膜8的废水流速较快，使得水流在滤膜8中的流速也相应增加，从而对滤膜8起到了冲洗作用，进而提高了滤膜8的使用寿命。
作为本发明的优选实施方式，第一腔室21和第二腔室23之间通过单向阀膜片3相连通，单向阀膜片3仅允许水流自第一腔室21向第二腔室23单向流动。
具体地，泵壳2包括连接部25以及设置在连接部25相对两侧的第一壳体22和第二壳体24，第一壳体22形成第一腔室21，第二壳体24形成第二腔室23，且第一腔室21和第二腔室23通过连接部25相隔离；第一壳体22的端部与滤膜8连接，第二壳体24的端部与滤瓶盖1的内壁连接。第一壳体22的端部与滤膜8采用水路密封件密封连接，使得滤膜8产生的废水直接流向第一腔室21；第二壳体24的端部同样可以采用水路密封件与滤瓶盖1的内壁密封连接，在回流泵4的作用下，第二腔室23内的废水以较快的流速通过废水出口231流向滤膜8的入水端81，被滤膜8重新过滤利用，其中，回流泵4优选叶片式回流泵。
请再次参照图1，连接部25上开设有贯通孔251，贯通孔251上覆盖有单向阀膜片3，单向阀膜片3仅允许水流自第一腔室21向第二腔室23单向流动。来自滤膜8的废水经过第一腔室21从贯通孔251流入第二腔室23，在贯通孔251上设置单向阀膜片3，可以保证第二腔室23的废水不向第一腔室21流动，废水具有较快的流速。
上述第二腔室23上开设的废水出口231可通过多种方式形成，比如第二壳体24的周向闭合，在第二壳体24上开设通孔以形成废水出口231；或者，第二壳体24的周向开放，用以形成废水出口231，此时，废水可以顺着回流泵4上叶片的旋转方向从第二壳体24的开放口流出。
请参照图2，该用于滤芯结构的泵头还包括设置在滤瓶盖1外侧的齿轮5，齿轮5上设置有连接轴51，回流泵4与连接轴51连接。在本实施方式中，通过齿轮5带动回流泵4运转，简化了泵头的整体结构。具体地，滤瓶盖1包括顶部11和环绕顶部11设置的侧部12，齿轮5设置在顶部11的外侧。由于齿轮5需要转动从而带动回流泵4运转，将齿轮5设置在顶部11的外侧时，可以利用滤芯结构的整个重量来稳定齿轮5的转动。
优选地，泵壳2的外壁和滤瓶盖1的内壁之间形成第一流道6，第一流道6用于与滤膜8的入水端81相连通，废水出口231与第一流道6连通。利用泵壳2的外壁与滤瓶盖1的内壁之间的空隙，来形成水流通道，即第一流道6，第二腔室23内的废水从废水出口231流入第一流道6，并沿着第一流道6流回滤膜8的入水端81进行再次净化。当然也可以在废水出口231与滤膜8的入水端81之间设置管道来将第二腔室23内的废水重新引入滤膜8。
滤瓶盖1上还设置有与滤膜8的入水端81相连通的原水进口13，外界来的原水从原水进口13流向滤膜8从而得到净化。需要说明的是，这里的原水可以是市政自来水、井水等经过PP棉、颗粒炭或压缩炭等滤膜处理后的水。原水进口13可与第一流道6相连通，外界来的原水从原水进口13流入第一流道6并流向滤膜8从而得到净化。
当滤膜8为反渗透膜，即RO膜时，流向滤膜8的原水需要经过增压泵增压处理。具体可以通过以下两种方式设置增压泵：
第一种，将增压泵集成在本发明提出的泵头中，原水从经过增压泵后进入滤膜8的入水端81；
第二种，将增压泵与滤芯结构分开设置，经过增压后的水通过管道进入滤瓶7进而流入滤膜8的入水端81。
另外，滤瓶盖1上还设置有废水口，用户可以间隔一定时间将滤膜8产生的废水从废水口排出。
本发明还提出一种滤芯结构，请参照图2，该滤芯结构包括一端开口的滤瓶7、设置在滤瓶7中的滤膜8以及如上述任一实施方式的用于滤芯结构的泵头；滤瓶盖1的开口端与滤瓶7的开口端连接；废水出口231与滤膜8的入水端81相连通；泵壳2上第一腔室21所在的一端与滤膜8连接，且第一腔室21与滤膜8的废水端82相连通。该用于滤芯结构的泵头的具体结构参照上述实施例，由于本滤芯结构采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
优选地，滤膜8的外表面与滤瓶7的内壁之间形成有第二流道9，第二流道9的一端与废水出口231相连通，另一端与滤膜8的入水端81相连通。利用滤膜8的外表面与滤瓶7的内壁之间的空隙，来形成水流通道，即第二流道9，可以理解的是，此时，滤瓶盖1的开口端与滤瓶7的开口端需要密封连接。当泵壳2的外壁和滤瓶盖1的内壁之间形成有第一流道6时，第一流道6与第二流道9相连通，使得第二腔室23的废水依次沿着第一流道6、第二流道9进入滤膜8。在本实施方式中，第二腔室23上开设的废水出口231与滤膜8的入水端81之间不需要设置管道来形成水流通道，简化了结构。
本发明还提出一种净水器，该净水器包括进水管、出水管和如上述任一实施方式的滤芯结构；进水管一端用于与自来水的管路连通，另一端与滤芯结构上的原水进口13连通；出水管一端与滤膜8的净水端连通，另一端用于连接水龙头。该滤芯结构的具体结构参照上述实施例，由于本净水器采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (20)

  1. 一种用于滤芯结构的泵头，其特征在于，包括一端开口的滤瓶盖、设置在所述滤瓶盖内的泵壳以及回流泵；所述泵壳包括相互连通的第一腔室和第二腔室，所述第一腔室与所述滤膜的废水端相连通；所述回流泵收容于所述第二腔室内，且所述第二腔室上开设有用于与滤膜的入水端相连通的废水出口。
  2. 如权利要求1所述的用于滤芯结构的泵头，其特征在于，还包括设置在所述滤瓶盖外侧的齿轮，所述齿轮上设置有连接轴，所述回流泵与所述连接轴连接。
  3. 如权利要求2所述的用于滤芯结构的泵头，其特征在于，所述泵壳的外壁和所述滤瓶盖的内壁之间形成第一流道，所述第一流道用于与滤膜的入水端相连通，所述废水出口与所述第一流道连通。
  4. 如权利要求1所述的用于滤芯结构的泵头，其特征在于，所述泵壳包括连接部以及设置在连接部相对两侧的第一壳体和第二壳体，所述第一壳体形成所述第一腔室，所述第二壳体形成所述第二腔室，且所述第一腔室和所述第二腔室通过连接部相隔离；所述第一壳体的端部与所述滤膜连接，所述第二壳体的端部与所述滤瓶盖的内壁连接。
  5. 如权利要求4所述的用于滤芯结构的泵头，其特征在于，还包括设置在所述滤瓶盖外侧的齿轮，所述齿轮上设置有连接轴，所述回流泵与所述连接轴连接。
  6. 如权利要求5所述的用于滤芯结构的泵头，其特征在于，所述泵壳的外壁和所述滤瓶盖的内壁之间形成第一流道，所述第一流道用于与滤膜的入水端相连通，所述废水出口与所述第一流道连通。
  7. 如权利要求4所述的用于滤芯结构的泵头，其特征在于，所述连接部上开设有贯通孔，所述贯通孔上覆盖有单向阀膜片，所述单向阀膜片仅允许水流自所述第一腔室向所述第二腔室单向流动。
  8. 如权利要求7所述的用于滤芯结构的泵头，其特征在于，还包括设置在所述滤瓶盖外侧的齿轮，所述齿轮上设置有连接轴，所述回流泵与所述连接轴连接。
  9. 如权利要求8所述的用于滤芯结构的泵头，其特征在于，所述泵壳的外壁和所述滤瓶盖的内壁之间形成第一流道，所述第一流道用于与滤膜的入水端相连通，所述废水出口与所述第一流道连通。
  10. 如权利要求4所述的用于滤芯结构的泵头，其特征在于，所述第二壳体的周向闭合，且所述第二壳体上开设有通孔以形成所述废水出口。
  11. 如权利要求4所述的用于滤芯结构的泵头，其特征在于，所述第二壳体的周向开放，用以形成所述废水出口。
  12. 一种滤芯结构，其特征在于，包括一端开口的滤瓶、设置在所述滤瓶中的滤膜以及如权利要求1所述的用于滤芯结构的泵头；所述滤瓶盖的开口端与所述滤瓶的开口端连接；所述废水出口与所述滤膜的入水端相连通；所述泵壳上所述第一腔室所在的一端与所述滤膜连接，且所述第一腔室与所述滤膜的废水端相连通。
  13. 如权利要求12所述的滤芯结构，其特征在于，还包括设置在所述滤瓶盖外侧的齿轮，所述齿轮上设置有连接轴，所述回流泵与所述连接轴连接。
  14. 如权利要求12所述的滤芯结构，其特征在于，所述泵壳包括连接部以及设置在连接部相对两侧的第一壳体和第二壳体，所述第一壳体形成所述第一腔室，所述第二壳体形成所述第二腔室，且所述第一腔室和所述第二腔室通过连接部相隔离；所述第一壳体的端部与所述滤膜连接，所述第二壳体的端部与所述滤瓶盖的内壁连接。
  15. 如权利要求14所述的滤芯结构，其特征在于，所述连接部上开设有贯通孔，所述贯通孔上覆盖有单向阀膜片，所述单向阀膜片仅允许水流自所述第一腔室向所述第二腔室单向流动。
  16. 如权利要求14所述的滤芯结构，其特征在于，所述第二壳体的周向闭合，且所述第二壳体上开设有通孔以形成所述废水出口。
  17. 如权利要求14所述的滤芯结构，其特征在于，所述第二壳体的周向开放，用以形成所述废水出口。
  18. 如权利要求12所述的滤芯结构，其特征在于，所述滤膜的外表面与所述滤瓶的内壁之间形成有第二流道，所述第二流道的一端与所述废水出口相连通，另一端与所述滤膜的入水端相连通。
  19. 如权利要求18所述的滤芯结构，其特征在于，所述泵壳的外壁和所述滤瓶盖的内壁之间形成第一流道，所述第一流道用于与滤膜的入水端相连通，所述废水出口与所述第一流道连通。
  20. 一种净水器，其特征在于，包括进水管、出水管和如权利要求12所述的滤芯结构；所述进水管一端用于与自来水的管路连通，另一端与所述滤芯结构上的原水进口连通；所述出水管一端与所述滤膜的净水端连通，另一端用于连接水龙头。
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