Two-in-one composite filter element

Abstract

The utility model relates to a two-in-one composite filter element which comprises a filter element shell, a central pipe, an RO (Reverse Osmosis) membrane and an upper cover assembly, the RO membrane is placed in the filter element shell, a gap is formed between the side wall of the RO membrane and the inner wall of the filter element shell to form a water inlet flow channel, the central pipe is inserted into the RO membrane, a central water inlet hole is formed in the central pipe, and water filtered by the RO membrane enters the central pipe through the central water inlet hole; the upper end cover is installed on the upper portion of the RO membrane, a pure water inlet and a waste water inlet hole are formed in the upper end cover, the pure water inlet is communicated with the water outlet of the central pipe, the waste water inlet hole is communicated with the upper portion of the RO membrane, and the second filtering piece is installed on the upper end cover; a raw water inlet runner, a waste water outlet runner and a pure water outlet runner are arranged on the upper cover assembly; the upper cover assembly covers the filter element shell, the raw water inlet flow channel is communicated with the water inlet flow channel, the waste water outlet flow channel is communicated with the waste water inlet hole, and the pure water outlet flow channel is communicated with water filtered by the second filter piece. The filter has the advantages of double filtering pieces, good filtering effect and compact structure.

Description

Technical Field

[0001] This utility model relates to a two-in-one composite filter element. Background Technology

[0002] Currently, there is only one type of filter element available, which has a single function and poor filtration effect. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a two-in-one composite filter element with dual filter elements, good filtration effect, and compact structure.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: it is a two-in-one composite filter element, characterized by comprising:

[0005] The filter cartridge housing, the central tube, and the RO membrane are arranged in the filter cartridge housing. The RO membrane is placed in the filter cartridge housing, and there is a gap between the side wall of the RO membrane and the inner wall of the filter cartridge housing to form a water inlet channel. The central tube is inserted into the RO membrane and has a central water inlet hole. The water filtered by the RO membrane enters the central tube through the central water inlet hole.

[0006] The upper end cover and the second filter element; the upper end cover is installed on the upper part of the RO membrane, and has a pure water inlet and a wastewater inlet on the upper end cover. The pure water inlet is connected to the outlet of the central tube, and the wastewater inlet is connected to the upper part of the RO membrane. The second filter element is installed on the upper end cover and is connected to the pure water inlet; and

[0007] The top cover assembly is provided with a raw water inlet channel, a wastewater outlet channel and a pure water outlet channel; the top cover assembly covers the filter cartridge housing, the raw water inlet channel is connected to the inlet channel so that water enters the RO membrane, the wastewater outlet channel is connected to the wastewater inlet hole, and the pure water outlet channel is connected to the water filtered by the second filter element.

[0008] In this technical solution, the upper cover assembly includes an upper cover, an upper outer cover, and an upper inner cover; the upper cover is provided with a raw water inlet, a wastewater outlet, and a pure water outlet; the upper cover covers the filter element housing, the upper inner cover covers the second filter element and the upper end cover, and the upper inner cover is provided with an upper inner cover outlet, which is connected to the pure water outlet and the flow channel is a pure water outlet flow channel; the upper outer cover covers the upper inner cover and the upper end cover, and there are gaps between the inner wall of the upper outer cover, the outer wall of the upper inner cover, and the outer wall of the upper end cover to form a wastewater flow channel, which is connected to the wastewater inlet and the wastewater outlet respectively, and the wastewater flow channel and the wastewater outlet are wastewater outlet flow channels; the raw water inlet is connected to the inlet flow channel, and the raw water inlet is a raw water inlet flow channel.

[0009] In this technical solution, the second filter element is a carbon sheet.

[0010] The advantages of this utility model compared with the prior art are: it has dual filter elements, good filtration effect, and compact structure. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is an exploded view of the present invention;

[0013] Figure 3 This is a top view of the present invention;

[0014] Figure 4 yes Figure 3 AA section view;

[0015] Figure 5 yes Figure 3 BB section view;

[0016] Figure 6 This is a side view of the present invention;

[0017] Figure 7 yes Figure 6 CC section view;

[0018] Figure 8 This is a schematic diagram of the structure of this utility model with the top cover and outer cover removed. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] like Figures 1 to 8 As shown, it is a two-in-one composite filter element, comprising:

[0021] The filter cartridge housing 3, the central tube 8, and the RO membrane 9 are arranged in the filter cartridge housing 3. There is a gap between the side wall of the RO membrane 9 and the inner wall of the filter cartridge housing 3 to form a water inlet channel 31. The central tube 8 is inserted into the RO membrane 9 and has a central water inlet hole 81. The water filtered by the RO membrane 9 enters the central tube 8 through the central water inlet hole 81.

[0022] The upper end cover 7 and the second filter element 6; the upper end cover 7 is installed on the upper part of the RO membrane 9, and has a pure water inlet 71 and a wastewater inlet 72. The pure water inlet 71 is connected to the outlet of the central tube 8, and the wastewater inlet 72 is connected to the upper part of the RO membrane 9. The second filter element 6 is installed on the upper end cover 7 and is connected to the pure water inlet 71; and

[0023] The top cover assembly is provided with a raw water inlet channel, a wastewater outlet channel and a pure water outlet channel. The top cover assembly covers the filter element housing 3. The raw water inlet channel is connected to the inlet channel 31 so that water enters the RO membrane 9. The wastewater outlet channel is connected to the wastewater inlet hole 72. The pure water outlet channel is connected to the water filtered by the second filter element 6.

[0024] During use, water flows through the raw water inlet channel, inlet channel 31, RO membrane 9, central pipe 8, pure water inlet 71, second filter element 6 and pure water outlet channel in sequence before being discharged. Wastewater flows through the wastewater inlet hole 72 and wastewater outlet channel in sequence before being discharged.

[0025] In this embodiment, the upper cover assembly includes an upper cover 2, an outer upper cover 4, and an inner upper cover 5; the upper cover 2 is provided with a raw water inlet 21, a wastewater outlet 22, and a pure water outlet 23; the upper cover 2 covers the filter cartridge housing 3, the inner upper cover 5 covers the second filter element 6 and the upper end cover 7, and the inner upper cover 5 is provided with an inner upper cover outlet 51, which is connected to the pure water outlet 23 and the flow channel is a pure water outlet flow channel; The outer cover 4 covers the inner cover 5 and the upper end cover 7. A gap exists between the inner wall of the outer cover 4, the outer wall of the inner cover 5, and the outer wall of the upper end cover 7, forming a wastewater channel 457. The wastewater channel 457 is connected to the wastewater inlet 72 and the wastewater outlet 22, respectively, serving as a wastewater outlet channel. The raw water inlet 21 is connected to the inlet channel 31, serving as a raw water inlet channel. During use, water sequentially passes through the raw water inlet 21, the inlet channel 31, the RO membrane 9, the central tube 8, the pure water inlet 71, the second filter element 6, the inner cover outlet 51, and the pure water outlet 23 before being discharged. Wastewater sequentially passes through the wastewater inlet 72, the wastewater channel 457, and the wastewater outlet 22 before being discharged.

[0026] In this embodiment, the second filter element 6 is a carbon sheet.

[0027] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations of these embodiments without departing from the principles and spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A two-in-one composite filter element, characterized in that... include: The filter cartridge housing (3), the central tube (8), and the RO membrane (9) are arranged in the filter cartridge housing (3). There is a gap between the side wall of the RO membrane (9) and the inner wall of the filter cartridge housing (3) to form a water inlet channel (31). The central tube (8) is inserted into the RO membrane (9). A central water inlet hole (81) is provided on the central tube (8). The water filtered by the RO membrane (9) enters the central tube (8) through the central water inlet hole (81). The upper end cap (7) and the second filter element (6) are provided. The upper end cap (7) is installed on the upper part of the RO membrane (9). A pure water inlet (71) and a wastewater inlet (72) are provided on the upper end cap (7). The pure water inlet (71) is connected to the outlet of the central tube (8). The wastewater inlet (72) is connected to the upper part of the RO membrane (9). The second filter element (6) is installed on the upper end cap (7) and is connected to the pure water inlet (71). The top cover assembly is provided with a raw water inlet channel, a wastewater outlet channel and a pure water outlet channel; the top cover assembly covers the filter element housing (3), the raw water inlet channel is connected to the inlet channel (31) so that water enters the RO membrane (9), the wastewater outlet channel is connected to the wastewater inlet hole (72), and the pure water outlet channel is connected to the water filtered by the second filter element (6).

2. The two-in-one composite filter element according to claim 1, characterized in that... The upper cover assembly includes an upper cover (2), an upper outer cover (4), and an upper inner cover (5); the upper cover (2) is provided with a raw water inlet (21), a wastewater outlet (22), and a pure water outlet (23); the upper cover (2) covers the filter element housing (3), the upper inner cover (5) covers the second filter element (6) and the upper end cover (7), and the upper inner cover (5) is provided with an upper inner cover outlet (51), which is connected to the pure water outlet (23) and the flow channel is a pure water outlet flow channel; the upper cover (2) is provided with a raw water inlet (21), a wastewater outlet (22), and ... The outer cover (4) covers the inner cover (5) and the upper end cover (7). The inner wall of the outer cover (4), the outer wall of the inner cover (5) and the outer wall of the upper end cover (7) form a wastewater channel (457). The wastewater channel (457) is connected to the wastewater inlet (72) and the wastewater outlet (22) respectively. The wastewater channel (457) and the wastewater outlet (22) are wastewater outlet channels. The raw water inlet (21) is connected to the inlet channel (31). The raw water inlet (21) is the raw water inlet channel.

3. The two-in-one composite filter element according to claim 1, characterized in that... The second filter element (6) is a carbon sheet.

Images