Leakage-proof carbon filter element and water purifier

Abstract

The utility model discloses a carbon leakage prevention filter element and a water purifier. The carbon leakage prevention filter element comprises a filter cartridge, a carbon rod and an end cover, the filter cartridge is provided with a water inlet pipe and a water outlet pipe. The carbon rod divides the inner cavity of the filter cartridge into a filter area and a pure water area, the filter area surrounds the pure water area, the inner cavity of the carbon rod forms the pure water area, and the filter area is communicated with the water inlet pipe; a connecting pipe is arranged in the middle of the end cover, the lower end of the connecting pipe is inserted into the pure water area, and the upper end of the connecting pipe is connected with the water outlet pipe. And a non-woven fabric and / or a PP cotton cap are / is arranged in the filter cartridge. After liquid enters the filtering area in the filter cylinder through the water inlet pipe, the liquid permeates from the middle of the carbon rod from outside to inside, reaches the pure water area, then moves upwards and leaves the filter cylinder through the connecting pipe and the water outlet pipe in sequence, and the non-woven fabric and the PP cotton cap can intercept carbon powder of the carbon rod, so that the carbon powder is prevented from being lost outwards; therefore, the problem that the valve port of the whole machine is blocked or is not completely closed due to the carbon powder is avoided, and the service life of the carbon rod is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of water purifier technology, and in particular to a leak-proof carbon filter cartridge and a water purifier. Background Technology

[0002] In commercially available charcoal rod-based and composite water purifiers containing charcoal rods, during use, the liquid enters the charcoal rod from the outside for filtration and moves inward to reach the hollow inner cavity. It then moves along the axis, passes through the end cap, and is discharged into the entire machine. During this process, charcoal powder from the rod flows into the machine with the liquid, causing valve blockage or incomplete valve closure. The loss of charcoal powder also reduces the filtration efficiency of the charcoal rod, ultimately leading to the malfunction of the entire machine. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. To this end, this utility model proposes a leak-proof carbon filter cartridge and a water purifier.

[0004] In a first aspect, this utility model provides a carbon leakage prevention filter element, the carbon leakage prevention filter element comprising:

[0005] The filter cartridge is equipped with an inlet pipe and an outlet pipe;

[0006] A carbon rod is disposed inside the filter cartridge, and the carbon rod divides the inner cavity of the filter cartridge into a filtration zone and a pure water zone. The filtration zone surrounds the pure water zone, and the inner cavity of the carbon rod constitutes the pure water zone. The filtration zone is connected to the water inlet pipe.

[0007] An end cap is provided inside the filter cartridge. A connecting pipe is provided in the middle of the end cap. The lower end of the connecting pipe is inserted into the pure water zone, and the upper end of the connecting pipe is connected to the water outlet pipe.

[0008] The filter cartridge is provided with non-woven fabric and / or PP cotton cap. The non-woven fabric is located above the connecting pipe and covers the upper port of the connecting pipe. The PP cotton cap is located in the pure water zone and is inserted into the lower port of the connecting pipe.

[0009] According to some embodiments of the present invention, the outer side of the end cap extends downward to form a first annular baffle, and the inner peripheral wall of the first annular baffle is in contact with the outer peripheral wall of the carbon rod.

[0010] According to some embodiments of the present invention, the top wall inside the filter cartridge extends downward to form a second annular baffle, the inner cavity of the second annular baffle forms a water outlet area, the water outlet area is connected to the water outlet pipe, and the upper end of the end cap is inserted into the second annular baffle and the upper end of the connecting pipe is connected to the water outlet area.

[0011] According to some embodiments of the present invention, the outer peripheral wall of the end cap is provided with a first annular groove, and the anti-leaking carbon filter element further includes a first sealing ring, the first sealing ring being disposed in the first annular groove, and the outer peripheral wall of the first sealing ring being attached to the inner peripheral wall of the second annular baffle.

[0012] According to some embodiments of the present invention, the end cap has an inner cavity, the non-woven fabric is located in the inner cavity of the end cap, the upper end of the connecting pipe is connected to the inner cavity of the end cap, and the upper port of the end cap is connected to the water outlet pipe.

[0013] According to some embodiments of the present invention, a support plate is provided at the bottom of the end cap cavity, the support plate is used to support the non-woven fabric, an isolation cavity is formed between the lower end face of the non-woven fabric and the bottom of the end cap cavity, the upper end of the connecting tube is connected to the isolation cavity, and the diameter of the isolation cavity is larger than the diameter of the connecting tube.

[0014] According to some embodiments of the present invention, the end cap includes an upper cap and a bottom cap, the upper cap and the bottom cap are detachably connected, the upper end of the connecting tube is connected to the bottom cap, and the lower end of the upper cap is inserted into the bottom cap so that the outer peripheral wall of the upper cap fits against the inner peripheral wall of the bottom cap.

[0015] According to some embodiments of the present invention, the outer peripheral wall of the top cover is provided with a second annular groove, and the anti-leaking carbon filter element further includes a second sealing ring, the second sealing ring is disposed in the second annular groove, and the outer peripheral wall of the second sealing ring is attached to the inner peripheral wall of the bottom cover.

[0016] According to some embodiments of this utility model, the PP cotton cap has an upward opening, and the outer peripheral wall of the PP cotton cap is provided with a limiting part. When the PP cotton cap is inserted upward into the inner cavity of the connecting tube, the limiting part abuts against the lower end of the connecting tube.

[0017] The leak-proof carbon filter element according to the embodiment of this utility model has at least the following technical effects:

[0018] 1. After the liquid enters the filtration zone inside the filter cartridge through the inlet pipe, the liquid permeates from the outside to the center of the carbon rod and reaches the pure water zone. Then it moves upward and leaves the filter cartridge through the connecting pipe and the outlet pipe in sequence. The non-woven fabric and PP cotton cap can intercept the carbon powder in the carbon rod, preventing the carbon powder from flowing out. This avoids the carbon powder from causing the valve port of the whole machine to be blocked or the valve port to be not completely closed, and improves the service life of the carbon rod.

[0019] 2. The end cap fits tightly with the filter cartridge, and the sealing performance is improved by the sealing cooperation of the first sealing ring and the second sealing ring, so as to avoid water leakage.

[0020] Secondly, this utility model embodiment also provides a water purifier, including a leak-proof carbon filter element according to the first aspect embodiment of this utility model described above.

[0021] The water purifier according to the embodiments of this utility model has at least the following technical effects: The water purifier uses the leak-proof carbon filter element. After the liquid enters the filtration zone inside the filter cartridge through the inlet pipe, the liquid permeates from the outside to the middle of the carbon rod and reaches the pure water zone. Then it moves upward and leaves the filter cartridge through the connecting pipe and the outlet pipe in sequence. The non-woven fabric and PP cotton cap can intercept the carbon powder of the carbon rod, preventing the carbon powder from leaking out, thereby preventing the carbon powder from causing the valve port of the whole machine to be blocked or the valve port to be incompletely closed, and improving the service life of the carbon rod.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] 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:

[0024] Figure 1 This is a schematic diagram of the structure of the anti-leakage carbon filter element according to some embodiments of this utility model;

[0025] Figure 2 This is a cross-sectional view of a leak-proof carbon filter element according to some embodiments of this utility model;

[0026] Figure 3 yes Figure 2 An enlarged view of point A;

[0027] Figure 4 This is a partial exploded view of the structure of the leak-proof carbon filter element according to some embodiments of this utility model;

[0028] Figure 5 This is a schematic diagram of the bottom cover structure of some embodiments of this utility model;

[0029] Figure 6 This is a cross-sectional view of another leak-proof carbon filter element according to some embodiments of this utility model;

[0030] Figure 7 yes Figure 6 An enlarged view of point B;

[0031] Figure 8 This is a partial exploded view of the structure of the anti-leakage carbon filter element according to some embodiments of this utility model.

[0032] Icon labels:

[0033] Filter cartridge 100; Inlet pipe 110; Outlet pipe 120; Carbon rod 130; Filtration zone 131; Pure water zone 132; Second annular baffle 140; Outlet zone 150;

[0034] End cap 200; connecting pipe 210; first annular baffle 220; first annular groove 221; first sealing ring 222; support plate 230; isolation cavity 240; upper cover 251; bottom cover 252; second annular groove 261; second sealing ring 262;

[0035] Non-woven fabric 300; PP cotton cap 310; limiting part 311. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0039] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0040] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0041] According to some embodiments of this utility model, refer to Figures 1 to 8The leak-proof carbon filter element includes a filter cartridge 100, a carbon rod 130, and an end cap 200. The filter cartridge 100, carbon rod 130, and end cap 200 are coaxially arranged with the axis pointing vertically. The filter cartridge 100 is provided with an inlet pipe 110 and an outlet pipe 120, which are connected to the inner cavity of the filter cartridge 100. The carbon rod 130 is disposed inside the filter cartridge 100, and the carbon rod 130 divides the inner cavity of the filter cartridge 100 into a filtration zone 131 and a pure water zone 132. The filtration zone 131 surrounds the pure water zone 132. The outer peripheral wall of the carbon rod 130 and the inner peripheral wall of the filter cartridge 100 form the filtration zone 131, and the inner cavity of the carbon rod 130 forms the pure water zone 132. The filtration zone 131 is connected to the inlet pipe 110. An end cap 200 is disposed inside the filter cartridge 100. A connecting pipe 210 is provided in the middle of the end cap 200. The lower end of the connecting pipe 210 is inserted into the pure water zone 132 and communicates with it. The upper end of the connecting pipe 210 is connected to the outlet pipe 120. A non-woven fabric 300 and / or a PP cotton cap 310 are provided inside the filter cartridge 100. The non-woven fabric 300 is located above the connecting pipe 210 and covers the upper port of the connecting pipe 210. The PP cotton cap 310 is located inside the pure water zone 132. The PP cotton cap 310 is inserted into the lower port of the connecting pipe 210. The PP cotton cap 310 and the connecting pipe 210 are interference-fitted, so that the PP cotton cap 310 and the connecting pipe 210 are relatively fixed. The connecting pipe 210 and the end cap 200 are integrally formed.

[0042] After the liquid enters the filtration zone 131 inside the filter cartridge 100 through the inlet pipe 110, the liquid permeates from the outside to the inside towards the middle of the carbon rod 130 and reaches the pure water zone 132. Then it moves upward and leaves the filter cartridge 100 through the connecting pipe 210 and the outlet pipe 120 in sequence.

[0043] Reference Figures 2 to 4 When the filter cartridge 100 is equipped with non-woven fabric 300, after the liquid enters the pure water zone 132 through the carbon rod 130, the liquid moves upward in the pure water zone 132, passes through the connecting pipe 210, then passes through the non-woven fabric 300, and then leaves through the outlet pipe 120. The non-woven fabric 300 can prevent the carbon powder from moving upward with the liquid and prevent the carbon powder from being lost.

[0044] Reference Figures 6 to 8 When the filter cartridge 100 is equipped with a PP cotton cap 310, after the liquid passes through the carbon rod 130 and enters the pure water zone 132, the liquid moves upward in the pure water zone 132, passes through the PP cotton cap 310, and enters the connecting pipe 210. After the liquid leaves the connecting pipe 210, it leaves through the outlet pipe 120. The PP cotton cap 310 can prevent the carbon powder from moving upward with the liquid and avoid carbon powder loss.

[0045] Both the non-woven fabric 300 and the PP cotton cap 310 can intercept the carbon powder in the carbon rod 130, preventing the carbon powder from leaking out and thus avoiding the carbon powder from causing valve blockage or incomplete valve closure, and improving the service life of the carbon rod 130. It is understood that either the non-woven fabric 300 or the PP cotton cap 310 can be selected for installation inside the filter cartridge 100, or both can be used together.

[0046] Both non-woven fabric 300 and PP cotton can effectively reduce carbon powder loss. Non-woven fabric 300 focuses on directly wrapping the carbon core to achieve a seal, while PP cotton intercepts carbon powder through precision filtration. The two can be used in combination. This combined design can minimize the entry of carbon powder into the water purification system, extend the filter life, and ensure water quality safety.

[0047] According to some embodiments of this utility model, refer to Figure 3 and Figure 7 The outer side of the end cap 200 extends downward to form a first annular baffle 220. The inner peripheral wall of the first annular baffle 220 fits against the outer peripheral wall of the carbon rod 130, thereby restricting the movement of the carbon rod 130 in the horizontal direction. It can be understood that the first annular baffle 220, the outer peripheral wall of the connecting pipe 210, and the lower end face of the end cap 200 together form an annular groove. The upper end of the carbon rod 130 is inserted into this groove to facilitate positioning and assembly while also serving as a limiting force.

[0048] According to some embodiments of this utility model, refer to Figure 3 and Figure 7 The top wall inside the filter cartridge 100 extends downward to form a second annular baffle 140. The inner cavity of the second annular baffle 140 forms a water outlet area 150, which is connected to the water outlet pipe 120. The upper end of the end cap 200 is inserted into the second annular baffle 140, thereby connecting the upper end of the connecting pipe 210 to the water outlet area 150. Liquid enters the water outlet area 150 through the connecting pipe 210 and then exits through the water outlet pipe 120. The second annular baffle 140 can limit the movement of the end cap 200 in the horizontal direction and also serves as a positioning assembly element.

[0049] According to some embodiments of this utility model, refer to Figure 3 and Figure 7 The outer peripheral wall of the end cap 200 is provided with a first annular groove 221. The anti-leakage carbon filter element also includes a first sealing ring 222. The first sealing ring 222 is disposed in the first annular groove 221. The outer peripheral wall of the first sealing ring 222 is attached to the inner peripheral wall of the second annular baffle 140 to prevent liquid from passing through the gap between the end cap 200 and the second annular baffle 140, thereby improving the sealing performance and preventing water from crossing between the pure water zone 132 and the filtration zone 131.

[0050] According to some embodiments of this utility model, refer to Figure 3 and Figure 4 The end cap 200 has an inner cavity, and the non-woven fabric 300 is disposed in the inner cavity of the end cap 200. The upper port of the connecting pipe 210 is connected to the inner cavity of the end cap 200, and the upper port of the end cap 200 is connected to the water outlet pipe 120.

[0051] Preferred, refer to Figure 3 and Figure 5 A support plate 230 is provided at the bottom of the inner cavity of the end cap 200. The support plate 230 is used to support the non-woven fabric 300. An isolation cavity 240 is formed between the lower end face of the non-woven fabric 300 and the bottom of the inner cavity of the end cap 200. The upper end of the connecting pipe 210 is connected to the isolation cavity 240. The diameter of the isolation cavity 240 is larger than the diameter of the connecting pipe 210. When the carbon powder follows the liquid into the isolation cavity 240 through the connecting pipe 210, the carbon powder is blocked by the non-woven fabric 300 and is temporarily stored in the isolation cavity 240, thus preventing the carbon powder from clogging the connecting pipe 210.

[0052] According to some embodiments of this utility model, refer to Figure 3 and Figure 4 The end cap 200 includes an upper cap 251 and a bottom cap 252, which are detachably connected. The upper end of the connecting tube 210 is connected to the bottom cap 252, and the lower end of the upper cap 251 is inserted into the bottom cap 252 so that the outer peripheral wall of the upper cap 251 fits against the inner peripheral wall of the bottom cap 252. The lower end face of the upper cap 251 and the support plate 230 cooperate to restrict the nonwoven fabric 300 from moving in the vertical direction. The detachable connection between the upper cap 251 and the bottom cap 252 facilitates the replacement of the nonwoven fabric 300.

[0053] According to some embodiments of this utility model, refer to Figure 3 and Figure 4 The outer peripheral wall of the upper cover 251 is provided with a second annular groove 261. The anti-leakage carbon filter element also includes a second sealing ring 262, which is disposed within the second annular groove 261. The outer peripheral wall of the second sealing ring 262 is fitted to the inner peripheral wall of the bottom cover 252. This prevents liquid from passing through the gap between the upper cover 251 and the bottom cover 252, improves the sealing performance, and prevents water leakage.

[0054] According to some embodiments of this utility model, refer to Figure 7 and Figure 8 The PP cotton cap 310 has its opening facing upwards. The outer peripheral wall of the PP cotton cap 310 is provided with a limiting part 311. When the PP cotton cap 310 is inserted upwards into the inner cavity of the connecting tube 210, the limiting part 311 abuts against the lower end of the connecting tube 210, thereby restricting the upward movement of the PP cotton cap 310. The PP cotton cap 310 and the connecting tube 210 are interference fit.

[0055] In this specification, the reference to the term "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A leak-proof carbon filter element, characterized in that, include: The filter cartridge (100) is equipped with an inlet pipe (110) and an outlet pipe (120); A carbon rod (130) is disposed inside the filter cartridge (100). The carbon rod (130) divides the inner cavity of the filter cartridge (100) into a filtration zone (131) and a pure water zone (132). The filtration zone (131) surrounds the pure water zone (132). The inner cavity of the carbon rod (130) constitutes the pure water zone (132). The filtration zone (131) is connected to the water inlet pipe (110). An end cap (200) is provided inside the filter cartridge (100). A connecting pipe (210) is provided in the middle of the end cap (200). The lower end of the connecting pipe (210) is inserted into the pure water zone (132), and the upper end of the connecting pipe (210) is connected to the water outlet pipe (120). The filter cartridge (100) is provided with a non-woven fabric (300) and / or a PP cotton cap (310). The non-woven fabric (300) is located above the connecting pipe (210) and covers the upper port of the connecting pipe (210). The PP cotton cap (310) is located in the pure water zone (132) and is inserted into the lower port of the connecting pipe (210).

2. The leak-proof carbon filter element according to claim 1, characterized in that, The outer side of the end cap (200) extends downward to form a first annular baffle (220), and the inner peripheral wall of the first annular baffle (220) is in contact with the outer peripheral wall of the carbon rod (130).

3. The leak-proof carbon filter element according to claim 1, characterized in that, The top wall inside the filter cartridge (100) extends downward to form a second annular baffle (140). The inner cavity of the second annular baffle (140) forms a water outlet area (150). The water outlet area (150) is connected to the water outlet pipe (120). The upper end of the end cap (200) is inserted into the second annular baffle (140) and the upper end of the connecting pipe (210) is connected to the water outlet area (150).

4. The leak-proof carbon filter element according to claim 3, characterized in that, The outer peripheral wall of the end cap (200) is provided with a first annular groove (221), and the anti-leakage carbon filter element also includes a first sealing ring (222). The first sealing ring (222) is disposed in the first annular groove (221), and the outer peripheral wall of the first sealing ring (222) is attached to the inner peripheral wall of the second annular baffle (140).

5. The leak-proof carbon filter element according to claim 1, characterized in that, The end cap (200) has an inner cavity, the non-woven fabric (300) is located in the inner cavity of the end cap (200), the upper end of the connecting pipe (210) is connected to the inner cavity of the end cap (200), and the upper port of the end cap (200) is connected to the water outlet pipe (120).

6. The leak-proof carbon filter element according to claim 5, characterized in that, The bottom of the inner cavity of the end cap (200) is provided with a support plate (230), which is used to support the non-woven fabric (300). An isolation cavity (240) is formed between the lower end face of the non-woven fabric (300) and the bottom of the inner cavity of the end cap (200). The upper end of the connecting tube (210) is connected to the isolation cavity (240). The diameter of the isolation cavity (240) is larger than the diameter of the connecting tube (210).

7. The leak-proof carbon filter element according to claim 5, characterized in that, The end cap (200) includes an upper cap (251) and a bottom cap (252). The upper cap (251) and the bottom cap (252) are detachably connected. The upper end of the connecting tube (210) is connected to the bottom cap (252). The lower end of the upper cap (251) is inserted into the bottom cap (252) so that the outer peripheral wall of the upper cap (251) fits against the inner peripheral wall of the bottom cap (252).

8. The leak-proof carbon filter element according to claim 7, characterized in that, The outer peripheral wall of the upper cover (251) is provided with a second annular groove (261), and the anti-leakage carbon filter element also includes a second sealing ring (262). The second sealing ring (262) is disposed in the second annular groove (261), and the outer peripheral wall of the second sealing ring (262) is attached to the inner peripheral wall of the bottom cover (252).

9. The leak-proof carbon filter element according to claim 1, characterized in that, The PP cotton cap (310) has an upward opening, and a limiting part (311) is provided on the outer peripheral wall of the PP cotton cap (310). When the PP cotton cap (310) is inserted upward into the inner cavity of the connecting tube (210), the limiting part (311) abuts against the lower end of the connecting tube (210).

10. A water purifier, characterized in that, It includes a carbon leak-proof filter element as described in any one of claims 1 to 9.

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