Water purification system filter head module

Abstract

To provide a filter head module for accommodating a filter attached to and detached from a water purification device or a water purification device of a water cooler and warmer or a refrigerator.SOLUTION: A filter head module according to the present invention includes: a plurality of filter heads including a filter accommodation part that accommodates a filter part; and a connection part that connects the filter heads. The filter heads each include a housing, a second cap, and a collet. The second cap is connected to the housing and the collet is tightly attached to a fixation part of the connection part.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a water purification device, and more particularly, to a filter head module for accommodating a filter that is detachably attached to a water purification device such as a water purifier, a cold and hot water dispenser, or a refrigerator.

Background Art

[0002] A water purification device is a device that filters various harmful components contained in raw water such as tap water or groundwater by means of a filter or the like, and converts it into safe and hygienic drinking water. A water purifier is a typical example of a water purification device. Recently, some or all of such a water purification device is also provided in a refrigerator, and purified water can be supplied through the refrigerator, or ice can be made using it. The filter head accommodates the filter and has a bypass function that prevents leakage of raw water and maintains the flow path on the purified water line as it is. That is, the raw water and the purified water are blocked so as not to mix with each other. The filter head requires many functions such as backflow prevention, water supply cutoff, and easy replacement, together with the bypass. Various forms of filter heads are presented in Korean Registered Patent No. 10-1409894, Korean Published Patent No. 2021-0042456, Chinese Registered Utility Model No. 213610153, etc.

[0003] On the other hand, the filter is sometimes removed from the filter head for replacement and inspection. For this purpose, characteristics such as easy assembly and disassembly of the filter, connection of a plurality of filters, and leakage prevention are required. However, although a filter head from which the filter can be removed is presented in Korean Registered Patent No. 10-1976641, etc., since the parts are assembled and manufactured with each other, the parts may be separated during movement. Also, when a high water pressure acts, there is a risk that a gap will occur between the parts and leakage will occur. Furthermore, a gasket is attached to some areas, and eccentricity may occur during assembly.

Prior Art Documents

Patent Documents

[0004] [Patent Document 1] Korean Registered Patent No. 10-1409894 [Patent Document 2] Korean Published Patent No. 2021-0042456 [Patent Document 3] China Registered Utility Model No. 213610153 [Overview of the project] [Problems that the invention aims to solve]

[0005] The present invention was made to solve the aforementioned problems, and its purpose is to provide a filter head module for a water purification system that fully satisfies physical properties such as easy assembly and disassembly of the filter, prevention of water leakage due to the coupling of multiple filter heads, no separation of parts, and prevention of eccentricity. [Means for solving the problem]

[0006] A filter head module for a water purification device to solve the problems of the present invention includes a plurality of filter heads, each having a filter housing portion in which a filter portion is housed, and a connecting portion that connects the filter heads. In this case, the filter head includes a housing, a second cap, and a collet, the second cap is coupled to the housing, and the collet is in close contact with the fixing portion of the connecting portion.

[0007] In the module of the present invention, the housing and the second cap can be fused together by ultrasonic waves. The filter head is located between an inlet and an outlet, the inlet including an inlet stem and a first cap, and the outlet including an outlet stem and a fifth cap. The inlet stem and the first cap, and the outlet stem and the fifth cap can be fused together by ultrasonic waves.

[0008] In the module of the present invention, the water inlet and the water outlet are inserted into and connected to the fastening portion of the filter head. The housing and the fastening portion each have a protrusion and a recess, and the protrusion and the recess can be fitted together. The connecting portion includes a connecting body, and a third cap and a fourth cap are attached to both sides of the connecting body, and the third and fourth caps are inserted into the fastening portion. An indicator indicating the direction in which the filter head is connected may be provided on the outer surface of the filter housing. Gaskets are located between the filter head and the water inlet, between the filter head and the connecting portion, and between the filter head and the water outlet, and the gaskets may be of tubular type. [Effects of the Invention]

[0009] According to the filter head module for water purification devices of the present invention, by improving the coupling structure of the filter heads, the assembly and disassembly of the filter are made easy, water leakage due to the coupling of multiple filter heads is prevented, separation of parts does not occur, and eccentricity is prevented, among other physical properties that are fully satisfied. [Brief explanation of the drawing]

[0010] [Figure 1] Figure 1 is a perspective view illustrating the filter head module according to the present invention. [Figure 2] Figure 2 is a cross-sectional view taken along the line II-II in Figure 1. [Figure 3] Figure 3 is an exploded view showing a filter head module according to the present invention. [Figure 4] Figure 4 is a cross-sectional view taken along the line IV-IV in Figure 3. [Figure 5] Figure 5 is a perspective view showing the gasket according to the present invention. [Figure 6] Figure 6 shows a modified example of the filter head module according to the present invention. [Modes for carrying out the invention]

[0011] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings. The embodiments described below can be modified in various ways, and the scope of the present invention is not limited to the embodiments described later. The embodiments of the present invention are provided to give a more complete explanation of the present invention to those who have ordinary skill in the art. On the other hand, terms referring to position, such as top, bottom, and front, refer only to those shown in the drawings. In practice, the filter head can be used in any selective direction, and when actually used, the spatial orientation changes depending on the direction and rotation of the filter head.

[0012] Embodiments of the present invention present a filter head module for a water purification system that, by improving the coupling structure of the filter heads, facilitates the assembly and disassembly of the filter, prevents water leakage due to the coupling of multiple filter heads, prevents separation of parts, and prevents eccentricity, thereby fully satisfying these physical properties. For this purpose, the filter head module for a water purification system to which the filter head coupling structure is applied is examined in detail, and the process of assembling the filter heads using the coupling structure to manufacture the module is described in detail. The filter head module according to the embodiment of the present invention is applied to a water purification system that filters out various harmful components contained in raw water such as tap water and groundwater that are harmful to the human body, thereby converting it into safe and hygienic drinking water.

[0013] Figure 1 is a perspective view illustrating a filter head module 100 according to an embodiment of the present invention, and Figure 2 is a cross-sectional view taken along line II-II in Figure 1. However, this is not a drawing in the strict sense, and there may be components that are not shown in the drawing for the sake of explanation.

[0014] Referring to Figures 1 and 2, the filter head module 100 includes an inlet section 10, a filter head 20, a connecting section 40, and a water outlet section 50. These will be described in detail later. The filter section 200 is separated from the filter head 20 for replacement and inspection. For this purpose, the filter head 20 has the function of preventing raw water from flowing out, blocking the flow path of the water purification line, and preventing raw water from flowing into the water purification line. This function prevents the raw water and purified water from mixing with each other. The filter head 20 is required to have many functions, such as preventing backflow, blocking water supply, and easy replacement. The filter section 200 may include filters 201 such as a sediment filter, a pre-carbon filter, a membrane filter (or reverse osmosis filter (R / O)), or a post-carbon filter.

[0015] The filter 201 is housed in the filter case 202, and a filter hollow 203 exists inside it. The filter 201 is covered by a filter cap 204, and the filter case 202 is covered by a cover 205. The filter cap 204 has an outlet channel 206 that communicates with the filter hollow 203, and an inlet channel 207 is provided between the filter cap 204 and the cover 205. The cover 205 and the filter head 20 are sealed by an O-ring 208. Raw water IN, which enters from the inlet stem 11, flows in through the inlet channel 207 and the filter channel 209 between the filter case 202 and the filter 201.

[0016] The raw water IN in the filter channel 209 is switched to intermediate purified water through the filter 201 and accumulated in the filter cavity 203. The intermediate purified water accumulated in the filter cavity 203 is discharged through the water outlet channel 206 and the filter head 20. The intermediate purified water passes through the connecting part 40 and is discharged as drinking water OUT through the filter part 200 arranged beside it. In the drawings, two filter parts 200 located between the water inlet part 10 and the water outlet part 50 are taken as an example for illustration, and the intermediate purified water and the drinking water OUT are the purified water treated by the respective filter parts 200. Here, the drinking water OUT is filtered from various harmful components harmful to the human body and is safe and hygienic. In some cases, there can be more than two filter parts 200, and even if more than two filter parts 200 are attached, the drinking water OUT flows out from the filter part 200 connected to the water outlet part 50.

[0017] FIG. 3 is an exploded view showing the filter head module 100 according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG. 3. At this time, the filter part 200 attached to the filter head module 100 is the same as the one described above.

[0018] Referring to FIGS. 3 and 4, the filter head module 100 includes a water inlet part 10, a filter head 20, a connecting part 40, and a water outlet part 50. The filter head 20 is located between the water inlet part 10 and the water outlet part 50 and there are two or more of them. The connecting part 40 is located between the filter heads 20 and connects the filter heads 20. The water inlet part 10 provides a channel through which the raw water IN flows and includes a water inlet stem 11. The water outlet part 50 provides a channel through which the drinking water flows and includes a water outlet stem 51. A water inlet pipe 12 is connected to the water inlet stem 11, and a first cap 13 is provided at the end of the water inlet pipe 12. A water outlet pipe 52 is connected to the water outlet stem 51, and a fifth cap 53 is provided at the end of the water outlet pipe 52.

[0019] At this time, a part of the first cap 13 and the fifth cap 53 are respectively exposed outside the water inlet stem 11 and the water outlet stem 51. The water inlet pipe 12 and the first cap 13 are fixed to the water inlet stem 11, and the water outlet pipe 52 and the fifth cap 53 are fixed to the water outlet stem 51. At this time, the first and fifth caps 13, 53 respectively close the ends of the water inlet stem 11 and the water outlet stem 53, facilitating the connection with the hood head 20. For this purpose, the first and fifth caps 13, 53 can be made of a flexible material, such as silicone, Teflon (registered trademark), etc.

[0020] To prevent water leakage, the water inlet stem 11 and the water inlet pipe 12 are integrally formed, and the water outlet stem 51 and the water outlet pipe 52 are also integrally formed. If they are integrally formed, no gap will occur between the water inlet stem 11 and the water inlet pipe 12, and no gap will occur between the water outlet stem 51 and the water outlet pipe 52 either. Also, the water inlet stem 11 and the first cap 13, as well as the water outlet stem 51 and the fifth cap 53, are, for example, fused by ultrasonic waves to be firmly joined. If they are fused by ultrasonic waves, even when a high water pressure acts, no gap will occur between the water inlet stem 11 and the first cap 13, and between the water outlet stem 51 and the fifth cap 53, and water leakage will be blocked.

[0021] The filter head 20 houses the filter part 200 to block water leakage, and includes a housing 21 and a filter housing part 31. Inside the housing 21, a second cap 22, a gasket 23, a collet 24, and an O-ring 25 are joined. At this time, the second cap 22 closes the end of the housing 21, facilitating the connection with the collet 24. For this purpose, the second cap 22 can be made of a flexible material, such as silicone, Teflon (registered trademark), etc. The collet 24 is inserted into the second cap 22, and the second cap 22 is, for example, fused to the housing 21 by ultrasonic waves to be firmly joined. If they are firmly joined by ultrasonic waves, even when a high water pressure acts, no gap will occur between the second cap 22 and the housing 21, and no water leakage will occur.

[0022] In some cases, a grip 30 is added between the second cap 22 and the collet 24 to stabilize the connection between the second cap 22 and the collet 24. For ease of explanation, the grip 30 is shown only in the exploded view and is omitted in other drawings. The gasket 23 and O-ring 25 seal and prevent water leakage when the water inlet 10 and the connecting part 40 are inserted into the housing 21. Similarly, the gasket 23 and O-ring 25 seal and prevent water leakage when the water outlet 50 and the connecting part 40 are inserted into the housing 21. The O-ring 25 can be made using any known method and can be modified in various ways within the scope of the present invention. Details of the gasket 23 will be described later.

[0023] The water inlet section 10 and the water outlet section 50 are connected to a fastening section 26 provided on the filter head 20. Specifically, the first cap 13 and the fifth cap 53 are inserted inside the fastening section 26, and the ends of the water inlet stem 11 and the water outlet stem 51 are connected to the outside of the fastening section 26. The housing 21 is provided with a protrusion 27, and the fastening section 26 is provided with a recess 28, allowing them to be fitted together. When the protrusion 27 and the recess 28 are fitted together, the filter housing section 31 into which the filter section 200 is inserted is prevented from twisting. In some cases, the housing 21 is provided with a recess 28 and the fastening section 26 is provided with a protrusion 27, thereby achieving the above objective. The fastening section 26 may be integrated with the housing 21, or it may be joined by a joint section 29 as shown in the figure.

[0024] On the other hand, the outer surface of the filter housing 31 may have an arrow-like mark 32 indicating the direction in which the filter head 20 is connected by the connecting part 40. The mark 32 identifies the direction in which raw water IN is switched to drinking water OUT, in other words, the positions of the water inlet 10 and the water outlet 50. During the assembly process of the filter head 20, the parts are connected in the same direction as indicated by the mark 32.

[0025] The connecting portion 40 includes a connecting body 41, a connecting pipe 42, and a fixing portion 45. The fixing portion 45 fixes the filter head module 100 to the water purification device. Specifically, it can be fixed to the water purification device with fastening screws using the holes in the fixing portion 45, and this is merely an example, so it can be modified in various ways within the scope of the present invention. The third cap 43 and the fourth cap 44 on both sides of the connecting body 41 are firmly joined by, for example, ultrasonic fusion. At this time, the third and fourth caps 43 and 44 close one side and the other side of the connecting body 41, respectively, facilitating connection with the filter head 20. For this purpose, the third and fourth caps 43 and 44 may be made of a flexible material, such as silicone or Teflon®. If they are fused by ultrasonic waves, even if high water pressure is applied, no gaps will occur between the connecting body 41 and the third cap 43, and between the connecting body 41 and the fourth cap 44, thus preventing water leakage.

[0026] The collet 24 has a cylindrical strip shape, and assembly is completed when the strip is in close contact with the fixing part 45. The collet 24 limits the extent to which the connecting part 40 is inserted into the filter head 20 to a constant degree. The fixing part 35 acts as a stopper to restrict the movement of the collet 24. If the collet 24 were not present, the extent to which the connecting part 40 is inserted into the filter head 20 would not be constant. In other words, one side of the connecting part 40 might be inserted too thinly into the filter head 20, preventing proper assembly. In this case, assembly would not be easily completed, and disassembly would be difficult due to an imbalance of forces. By using the collet 24, assembly and disassembly of the connecting part 40 and the filter head 20 become easier.

[0027] The third cap 43 and the fourth cap 44 are coupled to fastening portions 26 provided on the filter head 20. Specifically, the third cap 43 and the fourth cap 44 are inserted inside the fastening portion 26, and the ends of the connecting body 41 are coupled to the outside of the fastening portion 26. For this purpose, the housing 21 is provided with a protrusion 27 and the fastening portion 26 is provided with a recess 28 so that they can be fitted together. When the protrusion 27 and the recess 28 are fitted together, the filter housing 31 into which the filter portion 200 is inserted is prevented from twisting. In some cases, the housing 21 is provided with a recess 28 and the fastening portion 26 is provided with a protrusion 27 so that the above objective can be achieved.

[0028] Figure 5 is a perspective view showing a gasket 23 according to an embodiment of the present invention. In this case, the filter head module 100 is the same as described above.

[0029] According to Figure 5, the gasket 23 is located between the water inlet 10 and the filter head 20, between the filter head 20 and the connecting part 40, and between the filter head 20 and the water outlet 50. The gasket 23 includes a gasket body 23a, a gasket pin 23b, and a flow hole 23c. The gasket 23 is tube-shaped and surrounds the water inlet stem 11, the connecting body 41, and the water outlet stem 51. The fact that the gasket 23 surrounds the water inlet stem 11, the connecting body 41, and the water outlet stem 51 in a tube shape prevents eccentricity from occurring when assembling the water inlet 10, the connecting part 40, and the water outlet 50 to the filter head 20. If the gasket 23 were ring-shaped, as in conventional designs, and surrounded the water inlet stem 11, connecting body 41, and water outlet stem 51, then eccentricity would occur when assembling the water inlet section 10, connecting section 40, and water outlet section 50 to the filter head 20.

[0030] Figure 6 shows a modified example 100a of the filter head module according to an embodiment of the present invention. In this case, the filter head module 100 is as shown in Figures 3 and 4.

[0031] As shown in Figure 6, in modified example 100a, more than two, N (N is a natural number) filter heads [20(1), 20(2), 20(3), ..., 20(N)] are connected by N-1 connecting parts [40(1), 40(2), ..., 40(N-1)]. Specifically, modified example 100a is completed when the collets 24 of the filter heads [20(1), 20(2), 20(3), ..., 20(N)] are assembled so that they are in close contact with the fixing parts 45 of the connecting parts [40(1), 40(2), ..., 40(N-1)]. In this way, modified example 100a, which includes N (N is a natural number) filter heads [20(1), 20(2), 20(3), ..., 20(N)], can be easily completed by making the collets 24 in close contact with the fixing parts 45. During the assembly process of the N filter heads 20, the labels 32 are aligned so that they point in the same direction and are then joined together.

[0032] Although the present invention has been described in detail above with reference to preferred embodiments, the present invention is not limited to the above embodiments, and various modifications are possible by those with ordinary skill in the art within the scope of the technical idea of ​​the present invention. [Explanation of symbols]

[0033] 100 filter head modules 100a filter head module 200 filter section 201 filter 10 Water entry section 11 Water entry stem 12 Inlet pipe 13. Caps 1-5 22 Caps 1-5 43. Caps 1-5 44. Caps 1-5 53 First to fifth caps 20 filter heads 21 cabinets 23 Gasket 24 Colette 25 O-rings 26 Fastening part 27 Convex part 28 recesses 29 Joint 30 Grips 31 Filter housing 32 signs 40 Connection part 41 Linked Body 42 Connecting pipe 45 Fixed part 50 Izumi Department 51 Outlet Stem 52 Outlet pipe

Claims

1. A filter head module for a water purification system, Multiple filter heads having filter housings in which filter sections are housed, A connecting part that connects the aforementioned filter heads, Includes, The aforementioned connecting portion includes a fixing portion, The filter head includes a housing, a second cap, and a collet, the second cap being coupled to the housing, and the collet being in close contact with the fixed portion. The aforementioned fixing part is capable of fixing the filter head module to the water purification device and functions as a stopper to restrict the movement of the collet, characterized in that it is a filter head module for a water purification device.

2. The water filter head module for a water purification device according to claim 1, characterized in that the housing and the second cap are fused together by ultrasonic waves.

3. The filter head module for a water purification device according to claim 1, characterized in that the filter head is located between an inlet section and an outlet section, the inlet section includes an inlet stem and a first cap, and the outlet section includes an outlet stem and a fifth cap.

4. The water inlet stem and the first cap, and the water outlet stem and the fifth cap are fused together by ultrasonic waves, as described in claim 3, for a water purification device filter head module.

5. The water inlet and outlet are inserted into and connected to the fastening portion of the filter head, characterized in that the filter head module for a water purification device according to claim 1.

6. The water purification device filter head module according to claim 5, characterized in that the housing and the fastening portion each have a protrusion and a recess, and the protrusion and the recess are fitted together.

7. The water purification filter head module according to claim 5, characterized in that the connecting portion includes a connecting body, a third cap and a fourth cap are connected to both sides of the connecting body, and the third and fourth caps are inserted into the fastening portion.

8. The filter head module for a water purification device according to claim 1, characterized in that the outer surface of the filter housing is provided with a mark indicating the direction in which the filter head is connected.

9. A filter head module for a water purification device according to claim 3, characterized in that a gasket is located between the filter head and the water inlet, between the filter head and the connecting part, and between the filter head and the water outlet, and the gasket is of the tube type.

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