Combined water purification filter element

Abstract

A combined water purification filter element relates to the technical field of filter elements and comprises an activated carbon cylinder, an upper end cover is mounted at the upper end of the activated carbon cylinder, a lower end cover is mounted at the lower end of the activated carbon cylinder, and the upper end cover and the lower end cover are connected through a connecting pipe; a functional filtering material is filled between the activated carbon cylinder and the connecting pipe; a permeable part is arranged at one end, close to the lower end cover, of the connecting pipe, an upper connecting cylinder is fixed on one side, connected with the connecting pipe, of the upper end cover, and a lower connecting cylinder is fixed on one side, connected with the connecting pipe, of the lower end cover.

Description

Technical Field

[0001] The present invention relates to the technical field of water purifier filter elements, and in particular to a combined water purifier filter element. Background Art

[0002] Water purifier is one of the household appliances commonly used in our daily life. The filter element of water purifier needs to be replaced frequently to ensure the quality of purified water. The filter element of water purifier usually filters water by adsorbing activated carbon material on the filter element frame. In the process of installing the activated carbon filter element, end caps need to be installed on the upper and lower sections of the activated carbon filter layer. The end caps are connected to the activated carbon structure by gluing. Gluing is required during the assembly of the filter element, which makes assembly inconvenient. Summary of the Invention

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a combined water purification filter element to solve the above problems.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] The present invention provides a combined water purification filter element, including an activated carbon cartridge, wherein an upper end cover is installed at the upper end of the activated carbon cartridge, and a lower end cover is installed at the lower end of the activated carbon cartridge, and the upper end cover and the lower end cover are connected by a connecting pipe; functional filter material is filled between the activated carbon cartridge and the connecting pipe; a water-permeable portion is provided at one end of the connecting pipe close to the lower end cover, and an upper connecting cartridge is fixed on the side where the upper end cover is connected to the connecting pipe, and a lower connecting cartridge is fixed on the side where the lower end cover is connected to the connecting pipe.

[0006] Furthermore, the upper connecting tube and the lower connecting tube are sealedly connected to the connecting pipe, and the water-permeable portion is a water-permeable hole starting from one end of the connecting pipe close to the lower end cover.

[0007] Furthermore, the upper connecting cylinder is sealed and connected to the connecting pipe, and the water permeable part includes a limiting plate installed in the lower connecting cylinder, the limiting plate constitutes a water permeable channel, the limiting cylinder is fixed on the limiting plate, the limiting ring is fixed at the lower end of the limiting cylinder, the limiting ring is in contact with the connecting pipe, and a water permeable cavity is provided at the lower end of the limiting plate; the water permeable channel is connected to the water permeable cavity.

[0008] Furthermore, a water outlet pipe is installed on the upper end cover, and the water outlet pipe is used to be connected to the water purifier, and the water outlet pipe is connected to the upper connecting tube.

[0009] Furthermore, the activated carbon cartridge includes an activated carbon filter layer, and a PP cotton filter layer is provided inside the activated carbon filter layer.

[0010] Furthermore, sealing rings are installed on the inner sides of the upper end cover and the lower end cover; and the sealing rings are in contact with the outer wall of the activated carbon cylinder.

[0011] Furthermore, the outer walls of the upper connecting tube and the lower connecting tube are in contact with the inner wall of the activated carbon tube.

[0012] The beneficial effects of the present invention are:

[0013] 1. During the assembly process of a combined water purification filter element, the connecting tube is first inserted into the lower connecting tube of the lower end cover, the lower end cover is clamped to the lower end of the activated carbon cartridge, and then the functional filter material is filled between the connecting tube and the activated carbon cartridge. Finally, the upper connecting tube on the upper end cover is aligned with the connecting tube, and the upper end cover is clamped to the upper end of the activated carbon cartridge to complete the assembly of the filter element. No glue is required during the installation of the end cover of the water purification filter element, making the assembly more convenient and quick.

[0014] 2. During the water filtration process, the filter element passes through the activated carbon cartridge from the side and contacts the functional filter material. After being treated by the functional filter material, it passes through the permeable part and enters the connecting pipe, thus achieving double filtration and improving the water quality.

[0015] 3. During the water filtration process, the filter element passes through the activated carbon cartridge from the side and is combined with the functional filter material. It then enters the connecting pipe from the water-permeable portion at the lower end of the connecting pipe and is discharged from the upper end cover. This allows the water to fully contact the functional material during the water filtration process, thereby improving the water quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a first embodiment of a combined water purification filter element of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of a second embodiment of a combined water purification filter element of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the upper end cover of a combined water purification filter element of the present invention;

[0019] Figure 4 This is a structural diagram of a first embodiment of a lower end cover of a combined water purification filter element of the present invention;

[0020] Figure 5 This is a structural schematic diagram of a second embodiment of a lower end cover of a combined water purification filter element of the present invention;

[0021] Figure 6 It is a schematic diagram of the cross-sectional structure of a combined water purification filter element of the present invention.

[0022] Reference numerals in the figures:

[0023] 1. Activated carbon cartridge; 11. Activated carbon filter layer; 12. PP cotton filter layer; 2. Upper end cap; 21. Water outlet pipe; 3. Lower end cap; 4. Connecting pipe; 5. Water-permeable portion; 6. Upper connecting cartridge; 7. Lower connecting cartridge; 71. Limiting plate; 72. Limiting cartridge; 73. Limiting ring; 74. Water-permeable cavity; 8. Sealing ring. DETAILED DESCRIPTION

[0024] The following is combined with Figures 1 to 6 The technical solution of the present invention is further illustrated through specific implementation methods.

[0025] like Figure 1 、 Figure 2 As shown, a combined water purification filter element provided in this embodiment includes an activated carbon cartridge 1, an upper end cover 2 is installed at the upper end of the activated carbon cartridge 1, and a lower end cover 3 is installed at the lower end of the activated carbon cartridge 1, and the upper end cover 2 and the lower end cover 3 are connected by a connecting tube 4; functional filter material is filled between the activated carbon cartridge 1 and the connecting tube 4; a water permeable portion 5 is provided at one end of the connecting tube 4 close to the lower end cover 3, an upper connecting tube 6 is fixed on the side where the upper end cover 2 is connected to the connecting tube 4, and a lower connecting tube 7 is fixed on the side where the lower end cover 3 is connected to the connecting tube 4.

[0026] During the assembly process of a combined water purification filter element, the connecting pipe is first inserted into the lower connecting tube 7 of the lower end cover, the lower end cover 3 is clamped on the lower end of the activated carbon cartridge 1, and then the functional filter material is filled between the connecting pipe 4 and the activated carbon cartridge 1. Finally, the upper connecting tube 6 on the upper end cover 2 is aligned with the connecting pipe 4, and the upper end cover 2 is clamped on the upper end of the activated carbon cartridge 1 to complete the assembly of the filter element. No glue is required during the installation of the end cover of the water purification filter element, so the assembly is relatively convenient and quick.

[0027] During the water filtration process, the filter element passes through the activated carbon cartridge 1 from the side and contacts the functional filter material after being filtered by the activated carbon cartridge 1. After being processed by the functional filter material, it passes through the water-permeable portion 5 and enters the connecting pipe 4, thereby achieving double filtration and improving the quality of water.

[0028] During the water filtration process, the filter element passes through the activated carbon cartridge 1 from the side and is combined with the functional filter material, then enters the connecting pipe 4 from the water-permeable portion 5 at the lower end of the connecting pipe 4 and is discharged from the upper end cover 2. This allows the water to fully contact with the functional material (the functional material can be one or more of activated carbon rings, resin particles, and KDF water purification materials) during the water filtration process, thereby improving the water quality.

[0029] First embodiment: refer to Figure 1 、 Figure 3 、 Figure 4The upper connecting tube 6 and the lower connecting tube 7 are sealed and connected to the connecting pipe 4, which improves the stability between the upper end cover 2, the lower end cover 3 and the connecting pipe 4; the water permeable part 5 is a water permeable hole opened at one end of the connecting pipe 4 near the lower end cover 3; the water passes through the side of the activated carbon cartridge 1 and is filtered by the activated carbon cartridge 1, and then is filtered by the functional material, enters the connecting pipe 4 through the water permeable hole and is discharged.

[0030] Second embodiment: refer to Figure 2 、 Figure 3 、 Figure 5 The upper connecting cylinder 6 is sealed and connected to the connecting pipe 4. The water permeable part 5 includes a limiting plate 71 installed in the lower connecting cylinder 7. The limiting plate 71 constitutes a water permeable channel. A limiting cylinder 72 is fixed on the limiting plate 71. A limiting ring 73 is fixed at the lower end of the limiting cylinder 72. The limiting ring 73 abuts against the connecting pipe 4. A water permeable cavity 74 is provided at the lower end of the limiting plate 71; the water permeable channel is connected to the water permeable cavity 74; water passes through the side of the activated carbon cylinder 1 and is filtered by the activated carbon cylinder 1, then enters the limiting plate 71 to form a water permeable channel, then enters the water permeable cavity 74, and finally enters the connecting pipe 4.

[0031] Reference Figure 3 A water outlet pipe 21 is installed on the upper end cover 2, and the water outlet pipe 21 is used to connect with the water purifier. The water outlet pipe 21 is connected to the upper connecting tube 6; after the water enters the connecting pipe 4, it is discharged through the water outlet pipe 21. The water outlet pipe 21 is connected to the water purifier, so that the water is discharged from the water outlet of the water purifier.

[0032] Reference Figure 1 The activated carbon cartridge 1 includes an activated carbon filter layer 11, and a pp cotton filter layer 12 is arranged inside the activated carbon filter layer 11; the pp cotton filter layer 12 can reduce the carbon powder that falls off the activated carbon filter layer 11 during the water filtration process and mixes with the functional materials along with the water flow, thereby affecting the water quality.

[0033] Reference Figure 3 、 Figure 4 、 Figure 5 A sealing ring 8 is installed on the inner side of the upper end cover 2 and the lower end cover 3; the sealing ring 8 fits with the outer wall of the activated carbon cylinder 1; and reduces the possibility of water entering through the gap between the upper end cover 2 and the lower end cover 3 and the activated carbon cylinder 1 during the filtration process and coming into contact with the functional filter material, thereby affecting the quality of the water.

[0034] Reference Figure 6 , the outer walls of the upper connecting tube 6 and the lower connecting tube 7 are in contact with the inner wall of the activated carbon tube 1; when the upper connecting tube 6 and the lower connecting tube 7 are inserted into the activated carbon tube 1, they abut against the functional filter material filled between the activated carbon tube 1 and the connecting tube 4, reducing the free movement of the functional filter material, thereby improving the water purification effect;

[0035] The outer walls of the upper connecting tube 6 and the lower connecting tube 7 are in contact with the inner wall of the activated carbon tube 1 and can reduce leakage of the functional filter material.

[0036] The present invention is described through preferred embodiments. Those skilled in the art will appreciate that various modifications or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A combined water purification filter element, characterized by: The invention comprises an activated carbon cartridge (1), wherein an upper end cap (2) is mounted on the upper end of the activated carbon cartridge (1), and a lower end cap (3) is mounted on the lower end of the activated carbon cartridge (1); the upper end cap (2) and the lower end cap (3) are connected via a connecting pipe (4); a functional filter material is filled between the activated carbon cartridge (1) and the connecting pipe (4); a water-permeable portion (5) is provided at one end of the connecting pipe (4) close to the lower end cap (3); an upper connecting cylinder (6) is fixed to the side where the upper end cap (2) is connected to the connecting pipe (4), and a lower connecting cylinder (7) is fixed to the side where the lower end cap (3) is connected to the connecting pipe (4).

2. A combined water purification filter element according to claim 1, characterized in that; The upper connecting tube (6) and the lower connecting tube (7) are sealedly connected to the connecting pipe (4); the water-permeable portion (5) is a water-permeable hole starting at one end of the connecting pipe (4) close to the lower end cover (3).

3. The combined water purification filter element according to claim 1, characterized in that: The upper connecting tube (6) is sealedly connected to the connecting tube (4); the water-permeable portion (5) comprises a limiting plate (71) installed in the lower connecting tube (7); the limiting plate (71) constitutes a water-permeable channel; a limiting tube (72) is fixed on the limiting plate (71); a limiting ring (73) is fixed at the lower end of the limiting tube (72); the limiting ring (73) abuts against the connecting tube (4); a water-permeable cavity (74) is provided at the lower end of the limiting plate (71); and the water-permeable channel is communicated with the water-permeable cavity (74).

4. The combined water purification filter element according to claim 1, characterized in that: A water outlet pipe (21) is installed on the upper end cover (2), and the water outlet pipe (21) is used to be connected to the water purifier. The water outlet pipe (21) is in communication with the upper connecting cylinder (6).

5. The combined water purification filter element according to claim 1, characterized in that: The activated carbon cartridge (1) comprises an activated carbon filter layer (11), and a PP cotton filter layer (12) is provided inside the activated carbon filter layer (11).

6. The combined water purification filter element according to claim 1, characterized in that: Sealing rings (8) are installed on the inner sides of the upper end cover (2) and the lower end cover (3); the sealing ring (8) is in contact with the outer wall of the activated carbon cylinder (1).

7. The combined water purification filter element according to claim 1, characterized in that: The outer walls of the upper connecting tube (6) and the lower connecting tube (7) are in contact with the inner wall of the activated carbon tube (1).

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