CN-121990702-A - Combined filter element

CN121990702ACN 121990702 ACN121990702 ACN 121990702ACN-121990702-A

Abstract

A composite filter element comprises an inner tubular carbon rod, an outer tubular carbon rod, a first end cover, a second end cover and a water outlet, wherein the inner tubular carbon rod is used for filtering heavy metals in raw water to generate purified water and define a water outlet pipeline, the outer tubular carbon rod is used for filtering chlorine in the raw water and is spaced from the inner tubular carbon rod, the first end cover is used for limiting one end of the inner tubular carbon rod and one end of the outer tubular carbon rod, the second end cover is spaced from the first end cover and is used for limiting the other end of the inner tubular carbon rod, the other end of the outer tubular carbon rod is provided with the water outlet communicated with the water outlet pipeline, and a resin particle accommodating space is defined by the inner tubular carbon rod, the outer tubular carbon rod and the first end cover together, and a plurality of resin particles are accommodated in the resin particle accommodating space and are used for softening the water quality of the raw water. The combined filter element occupies small volume, is low in cost, is simple to replace, and is good in user experience.

Inventors

LIN SHENGNAN
LUO CHENGXIN
Liu Maogu

Assignees

溢泰实业股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241217
Priority Date: 20241105

Claims (10)

1. A composite filter cartridge, comprising: The inner tubular carbon rod is used for filtering heavy metals in raw water to generate purified water and defining a water outlet pipeline for outputting the purified water; an outer tubular carbon rod for filtering chlorine in the raw water and concentrically spaced from the inner tubular carbon rod; the first end cover limits one end of the inner-layer tubular carbon rod and one end of the outer-layer tubular carbon rod and seals the water outlet pipeline; a second end cover spaced from the first end cover and limiting the other end of the inner tubular carbon rod and the other end of the outer tubular carbon rod, and provided with a water outlet communicated with the water outlet pipeline and defining a resin particle accommodating space together with the inner tubular carbon rod, the outer tubular carbon rod and the first end cover, and And the plurality of resin particles are accommodated in the resin particle accommodating space and used for softening the water quality of the raw water.
2. The composite filter element according to claim 1, wherein the heavy metal filtered by the inner tubular carbon rod is at least one of lead ions and mercury ions.
3. A composite filter element according to claim 1, wherein the inner tubular carbon rod has a pore size of 0.5 to 5. Mu.m.
4. A composite filter element according to claim 1, wherein the outer tubular carbon rod has a pore size of 5 to 30 μm.
5. The composite filter cartridge of claim 1, wherein the first end cap comprises a circular plate that limits the outer tubular carbon rod and the inner tubular carbon rod, a first stop ring that extends from a periphery of the circular plate toward the second end cap and limits an outer annular surface of the outer tubular carbon rod, a second stop ring that extends from a periphery of the circular plate toward the second end cap and limits an inner annular surface of the outer tubular carbon rod, and a third stop ring that extends from a periphery of the circular plate toward the second end cap and limits an outer annular surface of the inner tubular carbon rod.
6. A composite filter cartridge as in claim 1, wherein the second end cap comprises a ring plate circumscribing the outer tubular carbon rod and the inner tubular carbon rod and defining the water outlet, a fourth stop ring extending from a periphery of the ring plate toward the first end cap and circumscribing an outer annular surface of the outer tubular carbon rod, a fifth stop ring extending from a periphery of the ring plate toward the first end cap and circumscribing an inner annular surface of the outer tubular carbon rod, and a sixth stop ring extending from a periphery of the ring plate toward the first end cap and circumscribing an outer annular surface of the inner tubular carbon rod.
7. The composite filter element according to claim 1, wherein the resin particles soften the water quality of the raw water with weak acid cations.
8. The composite filter element of claim 1, further comprising a filter cloth surrounding an outer annulus of the outer tubular carbon rod and spaced from the first and second end caps for filtering large particulate impurities in the raw water.
9. A composite filter element according to claim 8, wherein the filter cloth has a pore size of 15 to 50. Mu.m.
10. The composite filter element according to claim 8, further comprising a housing accommodating the inner tubular carbon rod, the outer tubular carbon rod, the first end cap, the second end cap, the resin particles, and the filter cloth, wherein the housing is provided with a water inlet hole through which the raw water is introduced so that the raw water can permeate through the filter cloth, and a water outlet hole communicating with a water outlet of the second end cap.

Description

Combined filter element Technical Field The invention relates to a filter element, in particular to a composite filter element. Background The water purifier on the market generally adopts a filter element filled with a single filter material. Therefore, in order to realize the filtering effect of various filtering materials, a plurality of filter elements are required to be connected in series for filtering, each filter element is required to be provided with a fixed mounting seat, and each filter element is required to be replaced and maintained independently, so that the filter element has the advantages of large occupied volume, high cost, complex filter element replacement and serious influence on user experience. Therefore, it is necessary to seek a solution. Disclosure of Invention The invention aims to provide a composite filter element. The composite filter element comprises an inner tubular carbon rod, an outer tubular carbon rod, a first end cover, a second end cover, a water outlet pipe, a water outlet and a plurality of resin particles, wherein the inner tubular carbon rod is used for filtering heavy metals in raw water to generate purified water, the water outlet pipe is used for outputting the purified water, the outer tubular carbon rod is used for filtering chlorine in the raw water and is concentrically spaced from the inner tubular carbon rod, the first end cover is used for limiting one end of the inner tubular carbon rod and one end of the outer tubular carbon rod and sealing the water outlet pipe, the second end cover is spaced from the first end cover and is used for limiting the other end of the inner tubular carbon rod and the other end of the outer tubular carbon rod, the water outlet pipe is communicated with the water outlet pipe, the resin particle accommodating space is jointly defined by the inner tubular carbon rod, the outer tubular carbon rod and the first end cover, and the plurality of resin particles are accommodated in the resin particle accommodating space and used for softening the water quality of the raw water. According to the composite filter element, the heavy metal filtered by the inner-layer tubular carbon rod is at least one of lead ions and mercury ions. The aperture of the inner layer tubular carbon rod is 0.5-5 mu m. The aperture of the outer layer tubular carbon rod is 5-30 mu m. The first end cover comprises a circular plate for limiting the outer layer tubular carbon rod and the inner layer tubular carbon rod, a first limiting ring which extends from the periphery of the circular plate towards the second end cover and limits the outer annular surface of the outer layer tubular carbon rod, a second limiting ring which extends from the periphery of the circular plate towards the second end cover and limits the inner annular surface of the outer layer tubular carbon rod, and a third limiting ring which extends from the periphery of the circular plate towards the second end cover and limits the outer annular surface of the inner layer tubular carbon rod. The second end cover comprises a ring plate limiting the outer layer tubular carbon rod and the inner layer tubular carbon rod and defining the water outlet, a fourth limiting ring extending from the periphery of the ring plate towards the first end cover and limiting the outer ring surface of the outer layer tubular carbon rod, a fifth limiting ring extending from the periphery of the ring plate towards the first end cover and limiting the inner ring surface of the outer layer tubular carbon rod, and a sixth limiting ring extending from the periphery of the ring plate towards the first end cover and limiting the outer ring surface of the inner layer tubular carbon rod. According to the composite filter element, the resin particles soften the water quality of raw water by weak acid cations. The composite filter element also comprises a filter cloth which is used for coating the outer ring surface of the outer tubular carbon rod, is spaced from the first end cover and the second end cover and is used for filtering large-particle impurities in raw water. The aperture of the filter cloth is 15 to 50 mu m. The composite filter element also comprises a shell for accommodating the inner-layer tubular carbon rod, the outer-layer tubular carbon rod, the first end cover, the second end cover, the resin particles and the filter cloth, wherein the shell is provided with a water inlet hole for inputting the raw water so that the raw water can permeate from the filter cloth and a water outlet hole communicated with a water outlet of the second end cover. The composite filter element has the advantages of small occupied volume, low cost, simple filter element replacement and good user experience, heavy metals in raw water can be filtered by using the inner tubular carbon rod, the quality of the raw water is softened by using the resin particles, and chlorine in the raw water is filtered by using the outer tubular carbon r