Waterway connecting device and tabletop water purifier using same

Abstract

The utility model discloses a waterway connecting device and a tabletop water purifier using the same. The waterway connecting device comprises a water stop seat and a waterway connector, the waterway connector comprises a body, a one-way valve and a water inlet pipe; the body is hollow; the water inlet pipe is divided into two sections, and one ends of the two sections of water inlet pipe respectively penetrate through the outer peripheral surface of the body and are communicated with the inner cavity of the body; the other ends of the two sections of water inlet pipes are respectively communicated with a water inlet of the water purifying device and an output port of a tap water pipe; the water stop seat comprises a base plate and a water stop valve; the water stop valve is embedded in the middle of the base plate and comprises a valve element, a water inlet is formed in the upper end face of the water stop valve, a water outlet is formed in the lower end of the water stop valve, and the valve element is inserted into the water inlet. The upper end face of the valve element abuts against a water outlet of the raw water tank. A water outlet of the water stop valve is communicated with the top of the inner cavity of the body; the one-way valve is installed in an inner cavity of the body. The one-way valve is arranged in a one-way conduction mode, so that tap water input from the water inlet pipe can be prevented from entering the raw water tank, and water can be prevented from leaking outwards from the water stop valve.

Description

Technical Field

[0001] This utility model relates to the field of water purifier technology, and in particular to a water circuit connection device and a countertop water purifier using the same. Background Technology

[0002] Existing countertop water purifiers include a raw water tank and a water purification device. The water purification device uses physical filtration to purify water without the need for electricity, making the countertop water purifier small in size and easy to install. It also allows the countertop water purifier to be moved and placed freely according to the customer's needs.

[0003] Because existing countertop water purifiers use a raw water tank to hold the water to be purified, and the volume of the raw water tank is limited, the amount of purified water supplied by the countertop water purifier is limited.

[0004] To increase the purified water supply of countertop water purifiers, some countertop water purifiers have added an inlet pipe that can be connected to tap water, and these pipes are connected to the outlet of the inlet pipe, the outlet of the raw water tank, and the inlet of the water purification device through three branch pipes of a tee.

[0005] Using the above three-way connection method, the inlet pipe and the outlet of the raw water tank are connected. If tap water is supplied to the water purification device through the inlet pipe, tap water will simultaneously enter the raw water tank from the outlet, causing cross-contamination. Furthermore, the raw water tank will overflow and leak as it becomes full.

[0006] Therefore, two water valves need to be added to the two branch pipes of the tee that are connected to the inlet pipe and the raw water tank respectively, so as to control the opening and closing of the corresponding branch pipes respectively. By manually closing one of the water valves, the inlet pipe and the raw water tank cannot be used at the same time to supply water to the water purification device, so as to avoid cross-contamination and overflow. This causes the countertop water purifier to become inconvenient to use. Utility Model Content

[0007] To address the aforementioned shortcomings, the primary objective of this utility model is to propose a water circuit connection device to prevent cross-contamination and overflow, and to solve the inconvenience caused by the inability to use the inlet pipe and the raw water tank simultaneously.

[0008] The second objective of this invention is to propose a countertop water purifier using the above-mentioned water circuit connection device to solve the problems that the inlet pipe and the raw water tank cannot be used at the same time, and that it is inconvenient to use.

[0009] To achieve this objective, the present invention adopts the following technical solution:

[0010] A waterway connection device includes a water-stop seat and a waterway connector;

[0011] The water connector includes a body, a one-way valve, and an inlet pipe;

[0012] The main body is hollow; the water inlet pipe is divided into two sections, one end of each section of the water inlet pipe passes through the outer circumference of the main body and is connected to the inner cavity of the main body; the other ends of each section of the water inlet pipe are connected to the water inlet of the water purification device and the outlet of the tap water pipe, respectively, to provide water to the water purification device.

[0013] The water-stop seat includes a base plate and a water-stop valve;

[0014] The water-stop valve is embedded in the middle of the base plate. The water-stop valve includes a valve core that can be elastically raised and lowered. The upper end face of the water-stop valve is provided with a water inlet, and the lower end of the water-stop valve is provided with a water outlet. The valve core is inserted into the water inlet of the water-stop valve. The upper end face of the valve core is used to abut against the water outlet of the original water tank to conduct the water-stop valve. The water outlet of the water-stop valve is connected to the top of the inner cavity of the main body.

[0015] The one-way valve is installed in the inner cavity of the body, and the outlet of the stop valve is connected to the inlet pipe through the one-way valve;

[0016] When the downward force acting on the one-way valve is greater than the upward water pressure acting on the one-way valve, the one-way valve is opened.

[0017] Furthermore, the water connector also includes a connecting portion;

[0018] The connecting portion surrounds the top outer periphery of the body; the connecting portion is provided with at least two inserts, the inserts protruding from the outer peripheral surface of the connecting portion and extending upward; the two inserts are symmetrically distributed at the center of the connecting portion;

[0019] The base plate is provided with two insertion slots;

[0020] The socket slot protrudes from the outer peripheral surface of the base plate, and the two inserts are respectively inserted upward into the two socket slots.

[0021] Furthermore, the connecting portion is also provided with at least two fastener mounting portions;

[0022] The two fastener mounting parts protrude from the outer peripheral surface of the connecting part and are symmetrically distributed on the connecting part.

[0023] The fastener mounting part is provided with a fastener mounting hole, which extends from top to bottom through the fastener mounting part.

[0024] Furthermore, the connecting part is also provided with an annular groove and a support base;

[0025] The support base is located in the middle of the connecting part; the annular groove is recessed downward in the top surface of the connecting part and surrounds the outer periphery of the support base;

[0026] The annular groove is provided with a water passage hole; the water passage hole extends downward through the annular groove and connects to the top of the inner cavity of the main body;

[0027] The support base has a downwardly recessed receiving groove in the middle.

[0028] Furthermore, the water connector also includes a support frame and a plug;

[0029] The support frame is hollow; the support frame includes a face ring and multiple legs;

[0030] The top surface of the face ring is used to support the bottom surface of the one-way valve. The upper end of the support leg is connected to the bottom surface of the face ring, and the lower end of the support leg extends downward and abuts against the top surface of the plug. Multiple support legs are arranged at intervals.

[0031] The plug is used to seal the bottom of the body, and the bottom surface of the body and the bottom surface of the plug respectively abut against the mounting surface of the water circuit connection device in the water purifier.

[0032] Furthermore, the face ring is provided with at least two protrusions;

[0033] The two protrusions protrude outward from the outer circumferential surface of the face ring, and the two protrusions are symmetrically distributed at their centers;

[0034] The inner wall of the body is provided with a recessed groove that matches the protrusion.

[0035] Furthermore, the plug is provided with multiple protruding teeth;

[0036] Multiple protruding teeth are arranged at intervals and protrude outward from the outer peripheral surface of the plug; the protruding teeth are elastic elements and are embedded in the inner cavity wall of the body.

[0037] Furthermore, the water-stop seat also includes a support ring; the base plate is provided with an insert groove;

[0038] The mounting groove surrounds the inner side of the outer perimeter of the base plate; the bottom surface of the support ring is fitted into the mounting groove, and the top surface of the support ring is used to support the bottom surface of the original water tank.

[0039] Furthermore, a sealing ring is fitted onto the outer circumferential surface of the one-way valve;

[0040] The sealing ring is used to seal the gap between the outer peripheral surface of the one-way valve and the inner wall surface of the body.

[0041] Furthermore, this utility model proposes a countertop water purifier that uses the water circuit connection device described above;

[0042] The countertop water purifier also includes a raw water tank and a water purification device; the water circuit connection device includes a water stop seat and a water circuit connector; the water circuit connector includes a body, a one-way valve and an inlet pipe.

[0043] The raw water tank is connected to the water circuit connector via the water stop seat, and the two ends of the water inlet pipe are respectively connected to the water inlet of the water purification device and the outlet of the tap water pipe.

[0044] The beneficial effects of the water circuit connection device proposed in this utility model are as follows: It includes a one-way valve and a stop valve. Since the one-way valve is set to flow downwards in one direction, even when the raw water tank and the inlet pipe are used to input water into the water purification device at the same time, it can prevent tap water input from the inlet pipe from entering the raw water tank, thereby preventing cross-contamination and overflow. Furthermore, when the raw water tank is removed from the top of the stop valve to add water to the raw water tank, the valve core of the stop valve will spring up and close the stop valve, which can prevent water in the water circuit connector from leaking out from the stop valve, thus having better anti-leakage function and ease of use.

[0045] The present invention proposes a countertop water purifier that uses the above-mentioned water circuit connection device. By utilizing a one-way valve and a stop valve, it can prevent tap water entering the raw water tank from the inlet pipe, and also prevent water in the water circuit connector from leaking out through the stop valve. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the structure of one embodiment of the waterway connection device of this utility model;

[0047] Figure 2 for Figure 1 Cross-sectional view;

[0048] Figure 3 A schematic diagram of the installation structure of one embodiment of the stopwater seat;

[0049] Figure 4 A schematic diagram of the structure from a view of one embodiment of a water connector;

[0050] Figure 5 A schematic diagram of the installation structure of one embodiment of the check valve, support frame, and plug;

[0051] Figure 6 This is a schematic diagram of the water circuit of a countertop water purifier using the above-mentioned water circuit connection device according to an embodiment of the present invention;

[0052] The components include: a water-stop seat 1; a water connector 2; a base plate 11; a water-stop valve 12; a support ring 13; a connecting part 21; a body 22; a water inlet pipe 23; a one-way valve 25; a support frame 26; a plug 27; a socket groove 111; an insert groove 112; a valve core 121; an annular groove 210; a insert 211; a support seat 212; a fastener mounting part 213; a sealing ring 251; a face ring 261; a support leg 262; a protruding tooth 271; a water passage hole 2101; a receiving groove 2121; a fastener mounting hole 2131; and a protrusion 2611. Detailed Implementation

[0053] The following is in conjunction with the appendix Figure 1-6 The technical solution of this utility model will be further illustrated through specific implementation methods.

[0054] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0055] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0056] A waterway connection device includes a water-stop seat 1 and a waterway connector 2;

[0057] The water connector 2 includes a body 22, a one-way valve 25, and a water inlet pipe 23;

[0058] The main body 22 is hollow; the water inlet pipe 23 is divided into two sections, one end of each section of the water inlet pipe 23 passes through the outer circumferential surface of the main body 22 and is connected to the inner cavity of the main body 22; the other ends of the two sections of the water inlet pipe 23 are respectively connected to the water inlet of the water purification device and the outlet of the tap water pipe to provide water to the water purification device.

[0059] The water-stop seat 1 includes a base plate 11 and a water-stop valve 12;

[0060] The water stop valve 12 is embedded in the middle of the base plate 11. The water stop valve 12 includes a valve core 121 that can be elastically raised and lowered. The upper end face of the water stop valve 12 is provided with a water inlet, and the lower end of the water stop valve 12 is provided with a water outlet. The valve core 121 is inserted into the water inlet of the water stop valve 12. The upper end face of the valve core 121 is used to abut against the water outlet of the original water tank to conduct the water stop valve 12. The water outlet of the water stop valve 12 is connected to the top of the inner cavity of the body 22.

[0061] The one-way valve 25 is installed in the inner cavity of the body 22, and the outlet of the stop valve 12 is connected to the inlet pipe 23 through the one-way valve 25.

[0062] When the downward force acting on the one-way valve 25 is greater than the upward water pressure acting on the one-way valve 25, the one-way valve 25 is opened.

[0063] like Figure 1 and Figure 2 This is a schematic diagram of one embodiment of the waterway connection device of this utility model.

[0064] like Figure 1 and Figure 2 As shown, since the one-way valve 25 of the water circuit connection device of this utility model is configured to conduct downwards in a one-way manner, even when water is simultaneously input into the water purification device from the other end of the water inlet pipe 23, it can prevent tap water input from the other end of the water inlet pipe 23 from entering the water tank, thereby preventing cross-contamination and overflow. Furthermore, when the water tank is removed from above the water stop valve 12 to add water to the water tank, the valve core 121 of the water stop valve 12 will spring up and close the water stop valve 12, preventing water in the water circuit connector 2 from leaking outwards from the water stop valve 12.

[0065] It should be noted that the force acting from top to bottom on the check valve 25 mentioned above refers to the suction force exerted by the water pump in the water purification device on the check valve 25.

[0066] Furthermore, the water connector 2 also includes a connecting part 21;

[0067] The connecting portion 21 surrounds the top outer periphery of the body 22; the connecting portion 21 is provided with at least two inserts 211, the inserts 211 protruding from the outer peripheral surface of the connecting portion 21 and extending upward; the two inserts 211 are symmetrically distributed in the connecting portion 21.

[0068] The base plate 11 is provided with two insertion slots 111;

[0069] The socket slot 111 protrudes from the outer peripheral surface of the base plate 11, and the two inserts 211 are respectively inserted upward into the two socket slots 111.

[0070] like Figure 1 , Figure 3 and Figure 4 As shown, the installation stability of the connection between the water connector 2 and the water stop seat 1 can be improved by the cooperation of the insert 211 and the corresponding socket slot 111.

[0071] Furthermore, the connecting portion 21 is also provided with at least two fastener mounting portions 213;

[0072] The two fastener mounting portions 213 protrude from the outer peripheral surface of the connecting portion 21 and are centrally symmetrically distributed on the connecting portion 21;

[0073] The fastener mounting part 213 is provided with a fastener mounting hole 2131, which extends from top to bottom through the fastener mounting part 213.

[0074] like Figure 1 and Figure 4 As shown, by using fasteners passing through fastener mounting holes 2131, the connecting part 21 can be fixed inside the countertop water purifier, thereby improving the installation stability of the water circuit connection device.

[0075] Furthermore, the connecting part 21 is also provided with an annular groove 210 and a support base 212;

[0076] The support base 212 is located in the middle of the connecting part 21; the annular groove 210 is recessed downward in the top surface of the connecting part 21 and surrounds the outer periphery of the support base 212;

[0077] The annular groove 210 is provided with a water passage hole 2101; the water passage hole 2101 extends downward through the annular groove 210 and connects to the top of the inner cavity of the body 22;

[0078] The support base 212 has a downwardly recessed receiving groove 2121 in the middle.

[0079] like Figure 4 As shown, the receiving groove 2121 is used to receive the downwardly extending rod of the valve core 121, and the outer peripheral surface of the receiving groove 2121 is used to mount a spring, which is used to support the valve core 121 so that the valve core 121 can move up and down and open and close the stop valve 12.

[0080] Furthermore, the water connector 2 also includes a support frame 26 and a plug 27;

[0081] The support frame 26 is hollow; the support frame 26 includes a face ring 261 and multiple legs 262;

[0082] The top surface of the face ring 261 is used to support the bottom surface of the one-way valve 25. The upper end of the support leg 262 is connected to the bottom surface of the face ring 261. The lower end of the support leg 262 extends downward and abuts against the top surface of the plug 27. Multiple support legs 262 are arranged at intervals.

[0083] The plug 27 is used to seal the bottom of the body 22, and the bottom surface of the body 22 and the bottom surface of the plug 27 respectively abut against the mounting surface of the water circuit connection device in the water purifier.

[0084] like Figure 2 and Figure 5 As shown, setting the bottom of the body 22 as an open section that can be closed by the plug 27 can improve the ease of installation of the check valve 25; the check valve 25 is supported by the face ring 261 of the support frame 26, and the multiple legs 262 are arranged at intervals to improve the smoothness of water flow in the inner cavity of the body 22.

[0085] Furthermore, the face ring 261 is provided with at least two protrusions 2611;

[0086] The two protrusions 2611 protrude outward from the outer peripheral surface of the face ring 261, and the two protrusions 2611 are symmetrically distributed in the center;

[0087] The inner wall of the body 22 is provided with a recessed groove that matches the protrusion 2611.

[0088] like Figure 2 and Figure 5 As shown, by placing the protrusion 2611 into the recessed groove of the corresponding inner wall of the body 22, the accuracy of the installation and positioning of the support frame 26 and the one-way valve 25 can be improved.

[0089] Furthermore, the plug 27 is provided with a plurality of protruding teeth 271;

[0090] Multiple protrusions 271 are spaced apart and protrude outward from the outer peripheral surface of the plug 27; the protrusions 271 are elastic elements and are embedded in the inner cavity wall of the body 22.

[0091] like Figure 2 and Figure 5 As shown, by embedding the protruding teeth 271 into the inner wall of the body 22, the installation stability of the plug 27 and the sealing performance of the bottom end of the body 22 can be improved.

[0092] Furthermore, the water-stop seat 1 also includes a support ring 13; the base plate 11 is provided with an insert groove 112;

[0093] The mounting groove 112 surrounds the inner side of the outer periphery of the base plate 11; the bottom surface of the support ring 13 is fitted into the mounting groove 112, and the top surface of the support ring 13 is used to support the bottom surface of the original water tank.

[0094] like Figure 1-3 As shown, by supporting the bottom surface of the raw water tank with the support ring 13, the connection stability between the water circuit connection device and the outlet of the raw water tank can be improved, and the raw water tank and the stop valve 12 can be prevented from shaking during operation.

[0095] Furthermore, a sealing ring 251 is fitted onto the outer peripheral surface of the one-way valve 25;

[0096] The sealing ring 251 is used to seal the gap between the outer peripheral surface of the one-way valve 25 and the inner wall surface of the body 22.

[0097] like Figure 2 and Figure 5 As shown, by sealing the gap between the outer peripheral surface of the one-way valve 25 and the inner wall of the body 22 by the sealing ring 251, water in the inner cavity of the body 22 can be prevented from seeping upward into the raw water tank.

[0098] Furthermore, this utility model also proposes a countertop water purifier that uses the water circuit connection device described above;

[0099] The countertop water purifier also includes a raw water tank and a water purification device. The water circuit connection device includes a water stop seat 1 and a water circuit connector 2. The water circuit connector includes a body 22, a one-way valve 25, and a water inlet pipe 23.

[0100] The raw water tank is connected to the water connector 2 via the water stop seat 1, and the two ends of the water inlet pipe 23 are connected to the water inlet of the water purification device and the outlet of the tap water pipe, respectively.

[0101] like Figure 6 and Figure 2 As shown, this allows the countertop water purifier to use the one-way valve 25 and the stop valve 12 to prevent tap water entering the raw water tank from the inlet pipe 23, and also to prevent water from leaking out from the stop valve 12.

[0102] In summary, such as Figure 1-5In the embodiment of the present invention shown, the water circuit connection device includes a one-way valve 25 and a stop valve 12. Since the one-way valve 25 is configured to conduct downwards in one direction, even when the raw water tank and the inlet pipe 23 are used to simultaneously input water into the water purification device, it can prevent tap water input from the inlet pipe 23 from entering the raw water tank, thereby preventing cross-contamination and overflow. Furthermore, when the raw water tank is removed from above the stop valve 12 to replenish water to the raw water tank, the valve core 121 of the stop valve 12 will spring upwards and close the stop valve 12, preventing water in the water circuit connector 2 from leaking outwards from the stop valve 12, thus providing better leak-proof function and ease of use.

[0103] The countertop water purifier proposed in this utility model, which uses the above-mentioned water circuit connection device, can prevent tap water input from the inlet pipe from entering the raw water tank by using the one-way valve 25 and the stop valve 12, and can also prevent water in the water circuit connector from leaking out through the stop valve.

[0104] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A waterway connection device, characterized in that, Includes waterstop seat and waterway connector; The water connector includes a body, a one-way valve, and an inlet pipe; The main body is hollow; the water inlet pipe is divided into two sections, one end of each section of the water inlet pipe passes through the outer circumference of the main body and is connected to the inner cavity of the main body; the other ends of each section of the water inlet pipe are connected to the water inlet of the water purification device and the outlet of the tap water pipe, respectively, to provide water to the water purification device. The water-stop seat includes a base plate and a water-stop valve; The water-stop valve is embedded in the middle of the base plate. The water-stop valve includes a valve core that can be elastically raised and lowered. The upper end face of the water-stop valve is provided with a water inlet, and the lower end of the water-stop valve is provided with a water outlet. The valve core is inserted into the water inlet of the water-stop valve. The upper end face of the valve core is used to abut against the water outlet of the original water tank to conduct the water-stop valve. The water outlet of the water-stop valve is connected to the top of the inner cavity of the main body. The one-way valve is installed in the inner cavity of the body, and the outlet of the stop valve is connected to the inlet pipe through the one-way valve; When the downward force acting on the one-way valve is greater than the upward water pressure acting on the one-way valve, the one-way valve is opened.

2. The waterway connection device according to claim 1, characterized in that, The water connector also includes a connecting part; The connecting portion surrounds the top outer periphery of the body; the connecting portion is provided with at least two inserts, the inserts protruding from the outer peripheral surface of the connecting portion and extending upward; the two inserts are symmetrically distributed at the center of the connecting portion; The base plate is provided with two insertion slots; The socket slot protrudes from the outer peripheral surface of the base plate, and the two inserts are respectively inserted upward into the two socket slots.

3. The waterway connection device according to claim 2, characterized in that, The connecting part is also provided with at least two fastener mounting parts; The two fastener mounting parts protrude from the outer peripheral surface of the connecting part and are symmetrically distributed on the connecting part. The fastener mounting part is provided with a fastener mounting hole, which extends from top to bottom through the fastener mounting part.

4. The waterway connection device according to claim 2, characterized in that, The connecting part is also provided with an annular groove and a support base; The support base is located in the middle of the connecting part; the annular groove is recessed downward in the top surface of the connecting part and surrounds the outer periphery of the support base; The annular groove is provided with a water passage hole; the water passage hole extends downward through the annular groove and connects to the top of the inner cavity of the main body; The support base has a downwardly recessed receiving groove in the middle.

5. The waterway connection device according to claim 1, characterized in that, The water connector also includes a support frame and a plug; The support frame is hollow; the support frame includes a face ring and multiple legs; The top surface of the face ring is used to support the bottom surface of the one-way valve. The upper end of the support leg is connected to the bottom surface of the face ring, and the lower end of the support leg extends downward and abuts against the top surface of the plug. Multiple support legs are arranged at intervals. The plug is used to seal the bottom of the body, and the bottom surface of the body and the bottom surface of the plug respectively abut against the mounting surface of the water circuit connection device in the water purifier.

6. The waterway connection device according to claim 5, characterized in that, The face ring is provided with at least two protrusions; The two protrusions protrude outward from the outer circumferential surface of the face ring, and the two protrusions are symmetrically distributed at their centers; The inner wall of the body is provided with a recessed groove that matches the protrusion.

7. The waterway connection device according to claim 5, characterized in that, The plug is provided with multiple protruding teeth; Multiple protruding teeth are arranged at intervals and protrude outward from the outer peripheral surface of the plug; the protruding teeth are elastic elements and are embedded in the inner cavity wall of the body.

8. The waterway connection device according to claim 1, characterized in that, The water-stop seat also includes a support ring; the base plate is provided with an insert groove; The mounting groove surrounds the inner side of the outer perimeter of the base plate; the bottom surface of the support ring is fitted into the mounting groove, and the top surface of the support ring is used to support the bottom surface of the original water tank.

9. The waterway connection device according to claim 1, characterized in that, The outer circumferential surface of the one-way valve is fitted with a sealing ring. The sealing ring is used to seal the gap between the outer peripheral surface of the one-way valve and the inner wall surface of the body.

10. A countertop water purifier, characterized in that, Use the waterway connection device according to any one of claims 1-9; The countertop water purifier also includes a raw water tank and a water purification device; the water circuit connection device includes a water stop seat and a water circuit connector; the water circuit connector includes a body, a one-way valve and an inlet pipe. The raw water tank is connected to the water circuit connector via the water stop seat, and the two ends of the water inlet pipe are respectively connected to the water inlet of the water purification device and the outlet of the tap water pipe.

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