Composite filter element device

Abstract

The utility model discloses a composite filter element device which comprises a filter bottle shell, a rear frame shell, an activated carbon box, an RO (Reverse Osmosis) membrane filter element and a filter bottle cover, the filter bottle shell is of a cylindrical structure with an opening in the rear end, the filter bottle cover can cover the filter bottle shell, and a filter element arrangement cavity is defined by the filter bottle cover; a water inlet, a purified water outlet and a wastewater outlet are formed in the front end of the filter bottle shell; the activated carbon box and the RO membrane filter element sequentially abut against the interior of the filter element arrangement cavity from front to back; and the rear frame shell covers the periphery of the activated carbon box. According to the utility model, a rear-mounted activated carbon structure does not need to be additionally arranged in a waterway system, the RO membrane filter element and the rear-mounted activated carbon structure are integrated in the filter bottle shell, and waterway circulation is carried out through the water inlet channel and the wastewater channel formed between the shells or between the shell walls of the membrane core shells, so that the use of connecting components and accessories is effectively reduced, and the occupied space is reduced; when the filter element bottle is replaced, equivalent replacement of two filter accessories can be completed at a time, and the replacement process is simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter device field, especially in kind of composite filter filter core device. BACKGROUND

[0002] Water purifier is also called water purifier. According to filter core composition structure, it is divided into RO reverse osmosis water purifier, ultrafiltration membrane water purifier, energy water purifier and ceramic water purifier etc. The RO reverse osmosis water purifier is standardly equipped with 4 levels of filtration, that is, PP cotton, activated carbon, RO reverse osmosis membrane and post-activated carbon 4 levels. Among them, PP cotton, activated carbon, RO reverse osmosis membrane and post-activated carbon are four independent filter devices, which are communicated through pipeline or connecting member.

[0003] However, this kind of method needs more connecting members and accessories for assembly on the one hand, and occupies larger space. And, the filter elements are all replacement parts, which need to be replaced after a certain period of time, and the multiple filter structures are separately arranged, which increases the frequency and complexity of replacement and disassembly. Therefore, further improvement is needed. SUMMARY

[0004] The utility model at least solves one of the technical problems existing in the prior art. To this end, the utility model provides a kind of composite filter filter core device.

[0005] The technical scheme for solving the technical problems of one embodiment of the utility model is as follows: a kind of composite filter filter core device, comprising: filter bottle shell, post frame shell, activated carbon box, RO membrane filter core and filter bottle cover;

[0006] The filter bottle shell is a tubular structure with an open rear end, and the filter bottle cover can cover the filter bottle shell and form a filter core arrangement cavity. The front end of the filter bottle shell is provided with a water inlet, a purified water outlet and a waste water outlet. The activated carbon box and the RO membrane filter core are arranged in the filter core arrangement cavity from front to back. The post frame shell is arranged on the outer periphery of the activated carbon box.

[0007] The RO membrane filter core includes an RO liquid inlet, an RO purified water outlet and an RO waste liquid outlet. The activated carbon box includes a carbon box liquid inlet and a carbon box purified water outlet. The outer walls of the post frame shell and the RO membrane filter core are spaced apart from the filter bottle shell to form a water inlet channel. The water inlet channel is in communication with the water inlet and the RO liquid inlet. The outer wall of the activated carbon box and the inner wall of the post frame shell form a waste water channel. The waste water channel is in communication with the waste water outlet and the RO waste liquid outlet. The RO purified water outlet is in communication with the carbon box liquid inlet, and the carbon box purified water outlet is in communication with the purified water outlet.

[0008] Optionally, the activated carbon box and the RO membrane filter core are both cylindrical. The post frame shell is a tubular structure with one open side. The outer edge of the RO membrane filter core can be arranged in the post frame shell.

[0009] Optionally, the filter bottle cap is provided with a first support spacer bar arranged radially in the circumferential direction on the side facing the RO membrane filter element; the first support spacer bar can abut against the RO membrane filter element and form a water passage channel that connects the water inlet channel.

[0010] Optionally, the activated carbon box is provided with a second support spacer arranged radially along the center on the side facing the RO membrane filter element; the second support spacer can abut against the RO membrane filter element and form a water passage connecting the wastewater channel.

[0011] Optionally, the purified water outlet is centrally located at the front end of the filter housing; the water inlet and wastewater outlet are spaced apart on both sides of the purified water outlet.

[0012] Optionally, the water inlet, clean water outlet, and wastewater outlet are equipped with check valves.

[0013] The beneficial effects of this invention are as follows: The activated carbon box is integrated into the filter element arrangement cavity via a rear frame shell, and an inlet and wastewater channel are formed through the gap between the shell and the shell or membrane element shell wall. Water enters through the inlet and then flows into the RO inlet of the RO membrane filter element. After being treated by the RO membrane filter element, the purified water enters the activated carbon box for further filtration through the RO purified water outlet. The wastewater generated by the RO membrane filter element enters the wastewater channel through the RO waste liquid outlet and is subsequently discharged through the wastewater outlet. This invention eliminates the need for an additional post-activated carbon structure in the water system. The RO membrane filter element and post-activated carbon structure are integrated within the filter housing, and the water flow is facilitated by the inlet and wastewater channels formed through the gap between the shell and the shell or membrane element shell wall. This effectively reduces the use of connecting components and accessories, lowers the space occupied, and allows for the equivalent replacement of two filter elements at once when replacing the filter element bottle, simplifying the replacement process.

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a schematic diagram of the composite filter element device of this utility model;

[0017] Figure 2 for Figure 1 Cross-sectional view of a composite filter cartridge device.

[0018] Explanation of key component symbols:

[0019] 10, filter bottle shell; 11, water inlet; 12, clean water outlet; 13, waste water outlet; 20, rear frame shell; 30, activated carbon box; 31, carbon box liquid inlet; 32, carbon box clean water outlet; 33, second support spacing strip; 40, RO membrane filter core; 41, RO liquid inlet; 42, RO clean water outlet; 43, RO waste liquid outlet; 50, filter bottle cover; 51, first support spacing strip; 60, water inlet channel; 70, waste water channel; 80, check valve. DETAILED DESCRIPTION

[0020] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0021] In the description of the present application, the meaning of more than two, greater than, less than, more than, etc. is not included in the number, above, below, etc. is included in the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0022] In the description of the present application, it is understood that the position description, such as the position or location relationship indicated by up, down, front, back, left, right, etc. is based on the position or location relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, therefore it cannot be understood as a limitation on the present application.

[0023] In the present application, unless otherwise specified, the words "set", "install", "connect" and the like should be understood broadly, for example, they can be directly connected, or indirectly connected through an intermediate medium; can be fixedly connected, or can be detachably connected, or can be integrally formed; can be mechanically connected; can be the internal communication or interaction relationship of two elements. The skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0024] Embodiment

[0025] Reference Figure 1 and Figure 2 The present application provides a composite filter core device, which comprises a filter bottle shell 10, a rear frame shell 20, an activated carbon box 30, an RO membrane filter core 40 and a filter bottle cover 50.

[0026] The filter bottle shell 10 is a rear-end open cylinder structure, and the filter bottle cover 50 can cover the filter bottle shell 10 and surround to form a filter core arrangement cavity; the front end of the filter bottle shell 10 is provided with a water inlet 11, a purified water outlet 12 and a waste water outlet 13; the activated carbon box 30 and the RO membrane filter core 40 are sequentially arranged from front to rear in the filter core arrangement cavity; and the rear frame shell 20 is arranged on the outer periphery of the activated carbon box 30;

[0027] The RO membrane filter core 40 comprises an RO liquid inlet 41, an RO purified water outlet 42 and an RO waste liquid outlet 43; the activated carbon box 30 comprises a carbon box liquid inlet 31 and a carbon box purified water outlet 32; the outer wall of the rear frame shell 20 and the RO membrane filter core 40 and the filter bottle shell 10 are spaced to form a water inlet channel 60; the water inlet channel 60 is communicated with the water inlet 11 and the RO liquid inlet 41; the outer wall of the activated carbon box 30 and the inner wall of the rear frame shell 20 are spaced to form a waste water channel 70; the waste water channel 70 is communicated with the waste water outlet 13 and the RO waste liquid outlet 43; the RO purified water outlet 42 is communicated with the carbon box liquid inlet 31, and the carbon box purified water outlet 32 is communicated with the purified water outlet 12.

[0028] In the utility model, the activated carbon box 30 is arranged in the filter core arrangement cavity through the rear frame shell 20, and the water inlet channel 60 and the waste water channel 70 are formed through the gap between the shell and the shell or the membrane core shell wall; after the water in the water inlet 11 enters, it enters the RO liquid inlet 41 of the RO membrane filter core 40 through the water inlet channel 60; after being treated by the RO membrane filter core 40, the purified water enters the activated carbon box 30 through the RO purified water outlet 42 and is filtered again, and the waste water generated by the RO membrane filter core 40 enters the waste water channel 70 through the RO waste liquid outlet 43 and is then discharged through the waste water outlet 13. The utility model does not need to additionally arrange the rear activated carbon structure in the waterway system, integrates the RO membrane filter core 40 and the rear activated carbon structure in the filter bottle shell 10, and circulates the waterway through the water inlet channel 60 and the waste water channel 70 formed through the gap between the shell and the shell or the membrane core shell wall, so that the use of connecting members and accessories is effectively reduced, the occupied space is reduced, and the equivalent replacement of two filtering accessories can be completed at a time when the filter core bottle is replaced, and the replacement process is simplified.

[0029] Specifically, in order to match the cylindrical filter bottle shell 10 and the filter core arrangement cavity, the activated carbon box 30 and the RO membrane filter core 40 are both in a cylindrical shape; the rear frame shell 20 is in a one-side open cylinder structure; and the outer edge of the RO membrane filter core 40 can be arranged in the rear frame shell 20.

[0030] In the embodiment, the side of the filter bottle cover 50 towards the RO membrane filter core 40 is provided with a first support spacing strip 51 in a circumferential radial manner; the first support spacing strip 51 can be arranged in the RO membrane filter core 40 and spaced to form a water passing layer channel communicating with the water inlet channel 60. Through the first support spacing strip 51, the rear end of the RO membrane filter core 40 is spaced to form a transverse water passing layer channel, so as to communicate the water inlet channel 60 with the RO liquid inlet 41.

[0031] In the embodiment, the active carbon box 30 is provided with a second support interval strip 33 radially along the center on the side facing the RO membrane filter core 40; the second support interval strip 33 can abut against the RO membrane filter core 40 and intervally form a water passing layer channel communicating with the waste water channel 70. Through the second support interval strip 33, the front end of the RO membrane filter core 40 is intervally formed with a transverse water passing channel to communicate the waste water channel 70 with the RO waste liquid outlet 43.

[0032] In the embodiment, the purified water outlet 12 is centrally arranged at the front end of the filter bottle shell 10; the water inlet 11 and the waste water outlet 13 are intervally arranged at the two sides of the purified water outlet 12.

[0033] Specifically, the water inlet 11, the purified water outlet 12 and the waste water outlet 13 are provided with check valves 80.

[0034] Of course, the utility model is not limited to the above-mentioned embodiment, the skilled person in the art can also make equivalent transformation or replacement without departing from the spirit of the utility model, and these equivalent transformations and replacements are all included in the range defined by the claims of the present application.

Claims

1. A composite filter cartridge arrangement, characterized by The application relates to a filter bottle shell (10), a rear frame shell (20), an activated carbon box (30), an RO membrane filter core (40) and a filter bottle cover (50). The filter bottle shell (10) is a rear-end-opened cylindrical structure, the filter bottle cover (50) can cover the filter bottle shell (10) and form a filter core arrangement cavity, the front end of the filter bottle shell (10) is provided with a water inlet (11), a purified water outlet (12) and a waste water outlet (13), the activated carbon box (30) and the RO membrane filter core (40) are sequentially arranged in the filter core arrangement cavity from front to back, and the rear frame shell (20) covers the outer periphery of the activated carbon box (30). The RO membrane filter core (40) comprises an RO liquid inlet (41), an RO purified water outlet (42) and an RO waste liquid outlet (43), the activated carbon box (30) comprises a carbon box liquid inlet (31) and a carbon box purified water outlet (32), the outer walls of the rear frame shell (20) and the RO membrane filter core (40) and the filter bottle shell (10) form a water inlet channel (60), the water inlet channel (60) is communicated with the water inlet (11) and the RO liquid inlet (41), the outer wall of the activated carbon box (30) and the inner wall of the rear frame shell (20) form a waste water channel (70), the waste water channel (70) is communicated with the waste water outlet (13) and the RO waste liquid outlet (43), the RO purified water outlet (42) is communicated with the carbon box liquid inlet (31), and the carbon box purified water outlet (32) is communicated with the purified water outlet (12). The activated carbon box (30) and the RO membrane filter core (40) are both cylindrical, the rear frame shell (20) is a one-side-opened cylindrical structure, and the outer edge of the RO membrane filter core (40) can be arranged against the rear frame shell (20).

2. The composite filter cartridge arrangement of claim 1, wherein: The filter bottle cover (50) is provided with first support interval strips (51) which are radially arranged on one side of the RO membrane filter core (40), the first support interval strips (51) can be arranged against the RO membrane filter core (40) and form water passing layer channels which are communicated with the water inlet channel (60).

3. The composite filter cartridge arrangement of claim 2, wherein: The activated carbon box (30) is provided with second support interval strips (33) which are centrally radially arranged on one side of the RO membrane filter core (40), the second support interval strips (33) can be arranged against the RO membrane filter core (40) and form water passing layer channels which are communicated with the waste water channel (70).

4. The composite filter cartridge arrangement of claim 2, wherein: The purified water outlet (12) is arranged at the front end of the filter bottle shell (10), and the water inlet (11) and the waste water outlet (13) are arranged on the two sides of the purified water outlet (12).

5. The composite filter cartridge arrangement of claim 1, wherein: The water inlet (11), the purified water outlet (12) and the waste water outlet (13) are provided with check valves (80).

6. The composite filter cartridge arrangement of claim 1, wherein: ​

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