Water outlet unit and water purifier including the same

Abstract

The present invention relates to a water outlet unit and a water purifier including the same. Specifically, according to an embodiment of the present invention, there is provided a water purifier water outlet unit including a first flow pipe providing a first water outlet passage for the outlet of hot water, and a second flow pipe providing a second water outlet passage for the outlet of purified water or cold water, the first flow pipe including a hot water pipe portion and a nozzle portion extending from a lower end portion of the hot water pipe portion and having an inner diameter smaller than that of the hot water pipe portion in a downward direction in order to delay the hot water outlet time.

Description

Technical Field

[0001] The present invention relates to a water outlet unit and a water purifier including the same.

Background Art

[0002] Generally, a water purifier is a device that is supplied with water from a water source such as a water supply, filtered into purified water, and then provides the purified water to a user. Such a water purifier can provide not only purified water but also warm water to the user.

[0003] In this regard, Korean Patent Publication No. 10-2018-0133611, "Faucet for Water Purifier" (Patent Document 1) of the present applicant discloses a water outlet pipe member, a faucet member coupled to an end of the water outlet pipe member, and a detachable jig detachably coupled to the faucet member. The water outlet pipe member of Patent Document 1 is composed of a cold and purified water supply pipe member for supplying cold or purified water and a hot water pipe member for supplying hot water.

[0004] On the other hand, in order to provide warm water to the user, a water purifier immediately heats purified water to 80 degrees or more with an instant hot water module (heater). In addition, recent water purifiers can also heat instant hot water to a higher temperature and provide the hot water to the user. Such hot water may vaporize due to various causes such as pressure changes due to flow and vortex formation, generating bubbles, and the bubbles may come out with the hot water. Therefore, when hot water comes out of the water purifier, there may be a problem that the discharged water flow of the hot water scatters in all directions due to the bubbles.

[0005] However, in the above-mentioned Patent Document 1, only the configuration of the hot water pipe member formed to extend linearly is disclosed, and a configuration for removing steam generated from the hot water pipe member for supplying hot water is not disclosed. Therefore, when the hot water comes out, the hot water cannot come out in a straight water flow, and the problem that the hot water scatters in all directions while coming out cannot be solved at all.

[0006] On the one hand, in some prior art, the problems related to the bubbles during hot water discharge described above were recognized, and there were also studies on removing the bubbles generated when hot water is discharged from a water purifier.

[0007] In relation to this, the applicant's Korean Patent Publication No. 10-2012-0075799, "Hot Water Discharge Valve" (Patent Document 2), discloses a hot water discharge valve including a water discharge side flow path for discharging hot water and a bubble crushing member disposed in the water discharge side flow path so that hot water passes through, for removing bubbles of hot water.

[0008] However, the bubble crushing member of the hot water discharge valve in Patent Document 2 is formed in a mesh shape so that hot water passes through and is disposed in the water discharge side flow path, so there is a problem that it may reduce the fluidity of the discharged hot water. Also, there is a problem that the flow path structure of the water purifier becomes more complicated due to the bubble crushing member of the hot water discharge valve in Patent Document 1. Further, since the bubble crushing member in Patent Document 2 may reduce the fluidity of hot water, there is a problem that residual water may remain in the flow path, which may reduce the hygiene of the water purifier.

[0009] In addition, the applicant's Korean Patent Publication No. 10-2013-0128591, "Steam Separation Device" (Patent Document 3), discloses a lower body including a steam discharge port for discharging steam separated from hot water, a hot water discharge port for discharging the hot water from which steam has been separated to the outside, and a separation member for separating steam contained in the hot water, and an upper body including a steam discharge port.

[0010] However, since the upper body, which is the upper structure of the steam separation device, occupies a relatively large volume in the overall structure of the water purifier, there is a problem that it is difficult to apply the steam separation device to a water purifier having a slim-shaped outer appearance. In addition, the steam discharged from the hot water outlet may generate condensed water on the surfaces of other components of the water purifier provided inside the water purifier, and such condensed water is discharged to the outside of the water purifier, which may cause inconvenience in use. Further, the hot water outlet of the steam separation device has the upper part of the discharge channel exposed to atmospheric pressure, and no differential pressure is applied to the channel, and the discharge speed of the hot water is very fast, so there is a problem that the hot water scatters in all directions when the hot water is discharged.

[0011] Thus, when the hot water is discharged, if the hot water scatters in all directions, the user using the water purifier may be burned by the hot water flow scattering in all directions. After that, since the user will be cautious about using the hot water in the water purifier, the usability of the water purifier may decrease. In addition, in the process of the hot water discharging from the water purifier, the hot water flow may scatter outside the container and contaminate the surrounding objects.

[0012] Therefore, there is a need for a technology that can separate the steam generated from the hot water of the water purifier and stably maintain the hot water flow discharged from the water purifier.

Prior Art Documents

Patent Documents

[0013]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0014] Embodiments of the present invention are invented by focusing on the above background, and an object is to provide a water outlet unit that can mechanically separate the steam of warm water and stably discharge the warm water, and a water purifier including the same. In addition, embodiments of the present invention aim to provide a water outlet unit that can reduce the formation of vortices due to bubbles during the extraction process of warm water, and a water purifier including the same.

Means for Solving the Problems

[0015] A water purifier water outlet unit according to an aspect of the present invention includes a first flow pipe that provides a first water outlet passage for the outlet of warm water; and a second flow pipe that provides a second water outlet passage for the outlet of purified water or cold water. The first flow pipe includes a warm water pipe portion; and a nozzle portion that extends from a lower end portion of the warm water pipe portion and has an inner diameter smaller than that of the warm water pipe portion in a downward direction to delay the outlet time of the warm water.

[0016] In addition, the first flow pipe may further include a buffer portion provided at an upper end portion of the warm water pipe portion so that the steam generated from the warm water stagnates.

[0017] In addition, the water purifier water outlet unit further includes a warm water supply pipe that communicates with a side surface of the warm water pipe portion and supplies the warm water to the warm water pipe portion, and the buffer portion is disposed above the warm water supply pipe and can extend upward.

[0018] In addition, the warm water pipe portion has a warm water inner diameter surface that slopes downward so that the inner diameter becomes smaller, and the first water outlet passage can be formed by the warm water inner diameter surface.

[0019] Further, the nozzle portion includes a first nozzle portion that continuously extends downward from the lower end portion of the hot water pipe portion and has a first inner diameter surface that is inclined such that the inner diameter gradually decreases downward; and a second nozzle portion that continuously extends downward from the lower end portion of the first nozzle portion and has a second inner diameter surface that is inclined less than the first inner diameter surface or extends parallel to the vertical direction.

[0020] Also, the thickness between the inner diameter and the outer diameter of the second nozzle portion is thicker than the thickness between the inner diameter and the outer diameter of the first nozzle portion, and the thickness between the inner diameter and the outer diameter of the first nozzle portion may be thicker than the thickness between the inner diameter and the outer diameter of the hot water pipe portion.

[0021] Also, the first flow pipe and the second flow pipe can be integrally formed.

[0022] A water purifier according to an aspect of the present invention includes a main body; and a water outlet unit installed in the main body for discharging hot water, purified water, or cold water. The water outlet unit includes a first flow pipe that provides a first water outlet passage for discharging hot water; and a second flow pipe that provides a second water outlet passage for discharging purified water or cold water. The first flow pipe includes a hot water pipe portion; and a nozzle portion that extends from the lower end portion of the hot water pipe portion and has an inner diameter smaller than the inner diameter of the hot water pipe portion in the downward direction to delay the hot water discharge time.

Effects of the Invention

[0023] According to an embodiment of the present invention, by forming a steam buffer space above the first flow pipe through which hot water is discharged, it is possible to mechanically separate the steam of the hot water and reduce the formation of vortices by bubbles.

[0024] Also, according to an embodiment of the present invention, the hot water can be pushed out in the gravitational direction using the steam stagnating in the steam buffer space, thereby maintaining the hot water flow in a straight form.

[0025] Also, according to an embodiment of the present invention, by providing a stabilization section where hot water stagnates at the lower part of the first flow pipe from which hot water flows out, the hot water outflow time can be delayed to stabilize the hot water, significantly improving the usability of hot water for the user, and contributing to maximizing the quality of the product.

[0026] Also, according to an embodiment of the present invention, since the thickness between the inner diameter and the outer diameter of the nozzle portion located on the lower side of the first flow pipe is thicker than the thickness between the inner diameter and the outer diameter of the nozzle portion located on the upper side of the first flow pipe, deformation of the nozzle portion due to the high temperature of the hot water can be prevented.

Brief Description of the Drawings

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Modes for Carrying Out the Invention

[0028] Hereinafter, specific embodiments for embodying the technical idea of the present invention will be described in detail with reference to the accompanying drawings.

[0029] In the description of the present invention, if it is determined that a specific description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

[0030] In addition, when it is mentioned that a certain component "contacts", "supports", "flows into", "flows", "couples", or "extracts" another component, it should be understood that the other component can be directly contacted, supported, flowed into, flowed, coupled, or extracted, but other components may also exist in between.

[0031] The terms used in this specification are merely used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly has a different meaning.

[0032] Furthermore, terms including ordinal numbers such as first and second can be used to describe various components, but the corresponding components are not limited by such terms. These terms are only used for the purpose of distinguishing one component from another.

[0033] The meaning of "including" used in this specification does not exclude the presence or addition of other specific characteristics, regions, constants, steps, operations, elements, and / or components while embodying specific characteristics, regions, constants, steps, operations, elements, and / or components.

[0034] Also, expressions such as upper side and lower side in this specification are described based on what is shown in the drawings, and it is clarified in advance that when the direction of the object changes, the expressions may be different.

[0035] Hereinafter, with reference to the drawings, the specific configuration of the water purifier 1 according to an embodiment of the present invention will be described.

[0036] Referring to FIGS. 1 to 3, the water purifier 1 can provide clean water to the user by filtering the water supplied from the outside. Such a water purifier 1 can include a main body 100, a filter 200, a heater 300, a cooler 400, a flow path assembly 500, and a faucet 600.

[0037] Prior to the specific description, the water flowing into the water purifier 1 from the outside can be classified into raw water, purified water, cold water, and hot water. Hereinafter, among the water flowing into the water purifier 1 from the outside, the water that has not passed through the filter 200 is defined as raw water, and the water that has been filtered through the filter 200 is defined as purified water. Also, among the water filtered by the filter 200, the water cooled to a predetermined temperature or lower by the cooler 400 is defined as cold water, and the water heated to a predetermined temperature or higher by the heater 300 among the water filtered by the filter 200 is defined as hot water.

[0038] The main body 100 can provide the overall appearance of the water purifier 1. The main body 100 can be in the form of a case provided so as to surround at least a part of the main components of the water purifier 1. The main body 100 can be formed by assembling a plurality of covers and frames with each other by bolts or the like. The main body 100 can support various types of water purifier components for filtering raw water. For example, the main body 100 can support the filter 200, the heater 300, the cooler 400, and the flow path assembly 500.

[0039] The filter 200 can filter the raw water flowing into the water purifier 1 into purified water. Raw water can flow into the filter 200 from the flow channel 511 of the flow path section 510 described later. The purified water filtered by the filter 200 can flow into the first discharge channel 512 and the second discharge channel 513 of the flow path section 510 described later.

[0040] The heater 300 can provide hot water by heating the purified water to a predetermined temperature or higher. The hot water provided by the heater 300 can be provided to the water outlet unit 520 described later via the first discharge channel 512.

[0041] The cooler 400 can provide cold water by cooling purified water to a temperature below a predetermined temperature. The cold purified water provided by the cooler 400 can be provided to the water outlet unit 520 via the second discharge channel 513.

[0042] The channel assembly 500 is disposed inside the main body 100 and can provide paths through which raw water, warm water, and cold purified water flow within the main body 100. Such a channel assembly 500 can include a channel portion 510, a water outlet unit 520, and an alternative tube module 530.

[0043] The channel portion 510 can provide paths through which raw water, warm water, and cold purified water flow within the main body 100. Such a channel portion 510 can include a flowing channel 511, a first discharge channel 512, and a second discharge channel 513.

[0044] The flowing channel 511 can provide a path through which raw water flowing into the filter 200 from the outside flows and a path through which the purified water filtered by the filter 200 is discharged. The first discharge channel 512 branches off from the flowing channel 511 and can provide a path through which the purified water flowing from the filter 200 into the heater 300 flows. The second discharge channel 513 branches off from the flowing channel 511 and can provide a path through which the purified water flowing from the filter 200 into the cooler 400 flows.

[0045] Referring to FIGS. 4 and 5, the water outlet unit 520 can be supported by the main body 100. The water outlet unit 520 can be configured to discharge the purified water, cold water, and warm water flowing within the alternative tube module 530 to the outside. For example, the water outlet unit 520 can be configured to discharge one of the purified water, cold water, and warm water to the outside according to the user's selection. Further, the water outlet unit 520 can be provided on the front side of the main body 100 and can be opened downward.

[0046] At the lower end of the water outlet unit 520, a faucet 600 can be detachably connected. The faucet 600 can guide the hot water, purified water, or cold water provided from the water outlet unit 520 to the outside. In this embodiment, the hot water, purified water, or cold water discharged from the water outlet unit 520 is discharged from the faucet 600, but it is not limited thereto. The hot water, purified water, or cold water may be directly discharged to the outside from the water outlet unit 520 without passing through a separate faucet 600.

[0047] Referring to FIGS. 6 and 8, such a water outlet unit 520 may include an outer pipe 521, a first flow pipe 522, a second flow pipe 523, a hot water supply pipe 524, a cold and purified water supply pipe 525, a first water outlet 527, and a second water outlet 528.

[0048] The outer pipe 521 can be a cover pipe that encloses the first flow pipe 522 and the second flow pipe 523. The outer pipe 521 can be integrally formed with at least a part of the first flow pipe 522 and the second flow pipe 523. For example, one side portion of the outer pipe 521 can be integrally formed with a part of the side wall of the first flow pipe 522, and the other side portion of the outer pipe 521 can be integrally formed with a part of the side wall of the second flow pipe 523. Also, at least a part of the first flow pipe 522 and the second flow pipe 523 can be integrally formed.

[0049] The first flow pipe 522 can provide a first water outlet passage 522a for the outlet of hot water. On the side of the first flow pipe 522, a hot water supply pipe 524 can be connected and communicated so as to extend in a direction deviated from the vertical direction. The first flow pipe 522 can be configured to communicate with the hot water supply pipe 524 below its upper end. In other words, the first flow pipe 522 can communicate with the hot water supply pipe 524 below a buffer portion 522-3 described later. When hot water is supplied from the hot water supply pipe 524 to the first flow pipe 522, the steam G generated from the hot water moves to the upper part of the first flow pipe 522, and the hot water (H: hot water from which the steam has escaped) from which a part of the steam has been separated can move to the lower part of the first flow pipe 522. The steam G can push out the hot water H from which a part of the steam has been separated downward (in the direction of gravity) in the first flow pipe 522 by stagnating in the upper part of the first flow pipe 522.

[0050] Such a first flow pipe 522 can include a hot water pipe portion 522-1, a nozzle portion 522-2, and a buffer portion 522-3.

[0051] The hot water pipe portion 522-1 can provide a flow path for the hot water passing through the hot water supply pipe 524 to flow to the nozzle portion 522-2. The hot water pipe portion 522-1 can have a hot water inner diameter surface 522-1a that slopes downward so that the inner diameter becomes smaller. The inner wall of the first water outlet passage 522a provided in the hot water pipe portion 522-1 can be formed by the hot water inner diameter surface 522-1a.

[0052] The nozzle portion 522-2 can be formed by extending from the lower end portion of the hot water pipe portion 522-1. The nozzle portion 522-2 can have an inner diameter smaller than that of the hot water pipe portion 522-1 in the downward direction. As an example, the nozzle portion 522-2 can include a first nozzle portion 522-21 and a second nozzle portion 522-22 having an inner diameter smaller than that of such a first nozzle portion 522-21.

[0053] The first nozzle portion 522-21 can extend continuously downward from the lower end portion of the hot water pipe portion 522-1 without a notch and be connected to the second nozzle portion 522-22. The first nozzle portion 522-21 can have a first inner diameter surface 522-21a that inclines such that the inner diameter gradually becomes smaller downward. The gradient at which the inner diameter of the first nozzle portion 522-21 becomes smaller can be greater than the gradient at which the inner diameter becomes smaller in the hot water pipe portion 522-1. In other words, the degree to which the inner diameter of the first nozzle portion 522-21 becomes smaller in the vertical length per unit length can be greater than the degree to which the inner diameter of the hot water pipe portion 522-1 becomes smaller. The inner wall of the first water outlet passage 522a provided in the first nozzle portion 522-21 can be formed by the first inner diameter surface 522-21a.

[0054] Since the first nozzle portion 522-21 has a funnel-shaped inner diameter surface that becomes smaller than the inner diameter of the hot water pipe portion 522-1 downward, a stabilization section where a part of the hot water stagnates can occur in the first nozzle portion 522-21. In the stabilization section where a part of the hot water in the first nozzle portion 522-21 stagnates, the flow velocity of the hot water becomes faster due to the narrower inner diameter surface, and by significantly reducing the vortex phenomenon of the hot water, the outflow of the hot water can be stabilized.

[0055] Referring to FIG. 7, the thickness between the inner diameter and the outer diameter of the first nozzle portion 522-21 can be greater than the thickness between the inner diameter and the outer diameter of the hot water pipe portion 522-1. Based on the same outer diameter, since the thickness between the inner diameter and the outer diameter of the first nozzle portion 522-21 is greater than the thickness between the inner diameter and the outer diameter of the hot water pipe portion 522-1, the first nozzle portion 522-21 can have a funnel-shaped inner diameter surface that becomes smaller than the inner diameter of the hot water pipe portion 522-1 downward in the first flow pipe 522.

[0056] The second nozzle portion 522-22 can continuously extend downward from the lower end portion of the first nozzle portion 522-21. The second nozzle portion 522-22 can have a second inner diameter surface 522-22a that is inclined more than the first inner diameter surface 522-21a or extends parallel to the vertical direction. The second inner diameter surface 522-22a can form the inner wall of the first water outlet passage 522a provided in the second nozzle portion 522-22.

[0057] When the first flow pipe 522 has a shape that extends along the vertical direction with the same outer diameter, the thickness between the inner diameter and the outer diameter of the second nozzle portion 522-22 can be thicker than the thickness between the inner diameter and the outer diameter of the first nozzle portion 522-21. In this way, the thickness between the inner diameter and the outer diameter of the first nozzle portion 522-21 may be thicker than the thickness between the inner diameter and the outer diameter of the hot water pipe portion 522-1, and the thickness between the inner diameter and the outer diameter of the second nozzle portion 522-22 may be thicker than the thickness between the inner diameter and the outer diameter of the first nozzle portion 522-21.

[0058] The buffer portion 522-3 can provide a steam buffer space into which the steam separated from the hot water can flow and stay. Such a buffer portion 522-3 can extend above the hot water pipe portion 522-1 and be provided above the hot water supply pipe 524. Further, a buffer cap 522-31 can be provided detachably at the upper end portion of the hot water pipe portion 522-1 to selectively open the inside of the buffer portion 522-3. When the steam G moves to the upper portion of the first flow pipe 522, the steam G contained in the hot water or generated from the hot water can enter the steam buffer space. The steam G flowing into the buffer portion 522-3 can guide the water flow into a straight form by pushing the hot water in the first flow pipe 522 downward (in the direction of gravity).

[0059] The second flow pipe 523 can provide a second water outlet passage 523a for the outlet of purified water or cold water. The upper end of the second flow pipe 523 can be communicatively connected to the cold purified water supply pipe 525. The second flow pipe 523 can discharge the purified water or cold water supplied from the cold purified water supply pipe 525 to the outside of the faucet 600.

[0060] The hot water supply pipe 524 can provide a passage for the flow of hot water. The end of the hot water supply pipe 524 can be connected to the side of the first flow pipe 522. The hot water supply pipe 524 can guide the hot water heated to a certain temperature or above by the heater 300 to the first flow pipe 522.

[0061] The cold purified water supply pipe 525 can provide a passage for the flow of purified water or cold water. The end of the cold purified water supply pipe 525 can be connected to the upper end of the second flow pipe 523. The cold purified water supply pipe 525 can guide the purified water or cold water passing through the filter and the cooler to the second flow pipe 523.

[0062] The first water outlet 527 may be a hole for extracting hot water. The first water outlet 527 can be provided at the end of the first flow pipe 522. The first water outlet 527 can be removably connected to communicate with the upper part of the faucet 600. For example, the hot water supplied from the first discharge channel 512 can move downward from the first water outlet passage 522a and flow into the inside of the faucet 600. The second water outlet 528 may be a hole for extracting cold purified water. The second water outlet 528 can be provided at the end of the second flow pipe 523. The second water outlet 528 can be removably connected to communicate with the upper part of the faucet 600. The cold purified water supplied from the second discharge channel 513 can flow downward through the second water outlet passage 523a and flow into the inside of the faucet 600. These first water outlet 527 and second water outlet 528 can be arranged adjacent to each other. Returning to FIG. 2, the alternative tube module 530 can provide a passage where the first discharge channel 512 and the first water outlet 527 are connected, and a passage where the second discharge channel 513 and the second water outlet 528 are connected. This alternative tube module 530 can be detachably coupled to the water outlet unit 520.

[0063] The faucet 600 can be detachably coupled to the water outlet unit 520 so as to communicate with the water outlet unit 520. The lower part of the faucet 600 can extend to the lower side of the main body 100. The upper part of the faucet 600 can be coupled to the water outlet unit 520 within the main body 100. The warm water, cold water or purified water flowing out from the water outlet unit 520 can be discharged to the lower side of the faucet 600.

[0064] Hereinafter, the operation and effect of the water purifier 1 having the above-described configuration will be described.

[0065] When warm water of the water purifier is provided to the user, when the warm water is supplied from the warm water supply pipe 524 to the first flow pipe 522, a part of the steam G generated from the warm water moves to the steam buffer space provided at the upper part of the first flow pipe 522 and can stagnate and stay in the steam buffer space. By the steam G stagnating in the steam buffer space pushing the warm water downward (in the direction of gravity) in the first flow pipe 522, the warm water can be discharged as a stable water flow without splashing around.

[0066] In addition, since the first flow pipe 522 through which warm water is discharged has a shape with a narrow inner diameter, the flow rate of the warm water becomes fast, and by significantly reducing the vortex phenomenon of the warm water, the discharge of the warm water can be stabilized.

[0067] As described above, the embodiments of the present invention have been described as specific embodiments, but this is merely an example and the present invention is not limited thereto. It should be construed as having the broadest scope in accordance with the technical idea disclosed in this specification. Those skilled in the art can implement patterns of shapes not disclosed by combining / replacing the disclosed embodiments, but this will not deviate from the scope of the present invention. Furthermore, those skilled in the art can easily modify or deform the disclosed embodiments based on this specification, and it is obvious that such modifications or deformations also belong to the scope of the rights of the present invention.

Claims

1. A first flow pipe providing a first water outlet passage for the outlet of warm water; and A second flow pipe providing a second water outlet passage for the outlet of purified water or cold water, wherein the first flow pipe has a warm water pipe portion; and is provided with a nozzle portion that extends from the lower end portion of the warm water pipe portion and has an inner diameter smaller than the inner diameter of the warm water pipe portion in the downward direction to delay the outlet time of the warm water, a water purifier water outlet unit.

2. The first flow pipe further includes a buffer portion provided at the upper end portion of the warm water pipe portion so that the steam generated from the warm water stagnates, and the water purifier water outlet unit according to claim 1 is characterized in that.

3. further includes a warm water supply pipe communicating with the side surface of the warm water pipe portion and supplying the warm water to the warm water pipe portion, wherein the buffer portion is disposed above the warm water supply pipe and extends upward, and the water purifier water outlet unit according to claim 2 is characterized in that.

4. The warm water pipe portion has a warm water inner diameter surface that slopes downward so that the inner diameter becomes smaller in the downward direction, and the first water outlet passage is formed by the warm water inner diameter surface, and the water purifier water outlet unit according to claim 1 is characterized in that.

5. The nozzle portion includes a first nozzle portion that continuously extends downward from the lower end portion of the warm water pipe portion and has a first inner diameter surface that slopes downward so that the inner diameter gradually becomes smaller in the downward direction; and a second nozzle portion that continuously extends downward from the lower end portion of the first nozzle portion and has a second inner diameter surface that slopes less than the first inner diameter surface or extends parallel to the vertical direction, and the water purifier water outlet unit according to claim 4 is characterized in that.

6. The thickness between the inner diameter and the outer diameter of the second nozzle portion is thicker than the thickness between the inner diameter and the outer diameter of the first nozzle portion, and the thickness between the inner diameter and the outer diameter of the first nozzle portion is thicker than the thickness between the inner diameter and the outer diameter of the warm water pipe portion, and the water purifier water outlet unit according to claim 5 is characterized in that.

7. The water purifier water outlet unit according to claim 1 is characterized in that the first flow pipe and the second flow pipe are integrally formed.

8. a main body; and including a water outlet unit installed in the main body for the outlet of warm water, purified water or cold water, wherein the water outlet unit includes a first flow pipe providing a first water outlet passage for the outlet of warm water; and a second flow pipe providing a second water outlet passage for the outlet of purified water or cold water, wherein the first flow pipe has a warm water pipe portion; and A water purifier including a nozzle portion that extends from a lower end portion of the hot water pipe portion and has an inner diameter smaller than that of the hot water pipe portion in a downward direction in order to delay the hot water discharge time. Water purifier.

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