Drawing type kitchen faucet with water purification function

By designing a dual-water channel structure extraction hose in the pull-out kitchen faucet, combining the water inlet assembly and pull-out pipe assembly, the faucet can not only output ordinary mixed water but also pure water, solving the problem of limited function selection in the existing technology, reducing customer purchase costs and improving product competitiveness.

CN223017748UActive Publication Date: 2025-06-24浙江华朗洁具有限公司
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Patent Information

Application Number
CN202422049050.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-22
Publication Date
2025-06-24
Estimated Expiration
2034-08-22

AI Technical Summary

Technical Problem

The existing pull-out kitchen faucet does not have pure water function, or due to structural limitations, it cannot have both pull-out and pure water functions, resulting in limited functional choices when purchasing, which increases the purchase cost.

Method used

A pull-out kitchen faucet with pure water function is designed. By setting up a water inlet assembly and pull-out pipe assembly inside the faucet main body, a pull-out hose with a double water channel structure can output both ordinary mixed water and pure water.

Benefits of technology

The same pulling hose can produce both ordinary mixed water and pure water, which meets customers' demand for pulling taps, reduces customers' purchasing costs, and improves product competitiveness and operating experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a drawing type kitchen faucet with a water purification function, and relates to the field of kitchen faucets. The drawing type kitchen faucet with the water purification function comprises a faucet body. A water inlet assembly (2) is in threaded connection with the interior of the faucet body (1), a water outlet pipe connector (3) is in threaded connection with the top of the faucet body (1), the surface of the water outlet pipe connector (3) is sleeved with a retaining ring (4), the surface of the retaining ring (4) is clamped with a drawing stainless steel pipe (5) through a buckle, and a drawing pipe assembly (6) is sleeved with the drawing stainless steel pipe (5). According to the drawing type kitchen faucet with the purified water function, mixed water is discharged from the large annular water channel, purified water is discharged from the middle small annular water channel, the function that common mixed water and purified water can be discharged from the same drawing hose is achieved, the product sales volume is promoted to be improved, and meanwhile the drawing type kitchen faucet with the purified water function can enable customers to have better operation and use experience.
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Description

Technical Field

[0001] This application relates to the technical field of kitchen faucets, and particularly to a pull-out kitchen faucet with a pure water function. Background Art

[0002] At present, the pull-out kitchen faucets on the market are all normal ordinary pull-out kitchen faucets, without a pure water function structure. Even if there is a faucet with a pure water structure function, due to structural limitations, it cannot be made into a pull-out structure. As a result, when customers want to buy a pull-out kitchen faucet, it does not have a pure water function, seriously reducing the customer's choice of product functions. At the same time, if customers need pure water, they also need to add a pure water faucet, greatly increasing the customer's purchase cost.

[0003] Therefore, it is necessary to invent a pull-out kitchen faucet with a pure water function to solve the above problems. Utility Model Content

[0004] This application provides a pull-out kitchen faucet with a pure water function to solve the problem that ordinary pull-out kitchen faucets do not have a pure water function structure, and faucets with a pure water structure function cannot be made into a pull-out structure due to structural limitations.

[0005] This application provides a pull-out kitchen faucet with a pure water function, including a faucet body. An inlet assembly is threadedly connected inside the faucet body. A water outlet joint is threadedly connected to the top of the faucet body. A snap ring is sleeved on the surface of the water outlet joint. A pull-out stainless steel pipe is snap-connected to the surface of the snap ring. A pull-out pipe assembly is sleeved inside the pull-out stainless steel pipe; the inlet assembly includes cold and hot water inlet copper pipes, a mixed water outlet copper pipe, a pure water inlet copper pipe, a pure water outlet copper pipe, cold and hot water inlet hoses, a pure water hose, and a quick connector. Two cold and hot water inlet copper pipes are threadedly connected inside the faucet body. A mixed water outlet copper pipe is threadedly connected inside the faucet body. A pure water inlet copper pipe is threadedly connected inside the faucet body. A pure water outlet copper pipe is threadedly connected inside the faucet body. Cold and hot water inlet hoses are threadedly connected to the bottoms of the two cold and hot water inlet copper pipes. A pure water hose is threadedly connected to the bottom of the pure water inlet copper pipe. A quick connector is connected through the bottom of the pure water outlet copper pipe; the pull-out pipe assembly includes a plastic ferrule, a pull-out pure water hose, and a pull-out water outlet head. A plastic ferrule is sleeved inside the pull-out stainless steel pipe. A pull-out pure water hose is sleeved inside the plastic ferrule. A pull-out water outlet head is threadedly connected to the side of the pull-out pure water hose. The pull-out pure water hose is slidably connected inside the pull-out stainless steel pipe.

[0006] Preferably, a water outlet three-way converter is threadedly connected to the bottom of the mixed water outlet copper pipe. The bottom of the water outlet three-way converter is connected through to a PEX pipe. The bottom of the quick connector is connected through to a PEX pipe. The bottom of the pull-out purified water hose is connected through to a water outlet three-way converter.

[0007] Preferably, a counterweight ball is sleeved on the surface of the pull-out purified water hose, and two O-rings are sleeved on the surface of the water outlet pipe joint.

[0008] Preferably, a mixing valve core is sleeved on the right side inner wall of the faucet body. A gland is threadedly connected to the right side inner wall of the faucet body. A decorative cover is threadedly connected to the side surface of the gland. A mixing water handle is threadedly connected to the surface of the valve core rod of the mixing valve core through a screw.

[0009] Preferably, a purified water valve seat is threaded on the left side inner wall of the faucet body. A purified water valve core is threadedly connected to the side surface of the purified water valve seat. A purified water handle is threadedly connected to the surface of the valve core rod of the purified water valve core through a screw. An O-ring is sleeved on the surface of the purified water valve seat.

[0010] Preferably, an assembly component is threadedly connected to the bottom of the faucet body. The assembly component includes an installation copper screw threadedly connected to the bottom of the faucet body. A base is sleeved on the surface of the installation copper screw. An installation nut is threadedly connected to the bottom of the installation copper screw.

[0011] Preferably, an installation rubber is sleeved on the surface of the installation copper screw, and an installation gasket is sleeved on the surface of the installation copper screw.

[0012] Beneficial effects:

[0013] Considering the problem of the use effect of the faucet, this pull-out kitchen faucet with a purified water function is designed with a pipe-in-pipe structure for the pull-out hose, that is, a double-ring water channel structure with a small pipe inside a large pipe. The large ring water channel outputs mixed water, and the small ring water channel in the middle outputs purified water, so as to realize the function that the same pull-out hose can output both ordinary mixed water and purified water. Such a double-channel pipe-in-pipe design has a better use effect than the single pull-out kitchen faucets on the market. Customers do not need to purchase an additional water purifier faucet with a purified water function because they do not have a purified water function, which greatly reduces the customer's purchase cost, improves the competitiveness of this product, promotes the increase in product sales, and at the same time, the pull-out kitchen faucet with a purified water function can enable customers to have a better operation and use experience.

[0014] The above description is only an overview of the technical solution of the embodiments of the present application. In order to understand the technical means of the embodiments of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the embodiments of the present application more obvious and understandable, the specific embodiments of the present application are given below. Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic diagram of the overall structure of a pull-out kitchen faucet with a pure water function according to the present utility model.

[0017] Figure 2 It is a schematic diagram of the water inlet assembly structure of a pull-out kitchen faucet with a pure water function according to the present utility model.

[0018] Figure 3 It is a schematic diagram of the pull-out tube assembly structure of a pull-out kitchen faucet with a pure water function according to the present utility model.

[0019] Figure 4 It is a schematic diagram of the assembly component structure of a pull-out kitchen faucet with a pure water function according to the present utility model.

[0020] Description of the Reference Numerals:

[0021] 1, faucet main body; 2, water inlet assembly; 201, cold and hot water inlet copper tubes; 202, mixed water outlet copper tube; 203, pure water inlet copper tube; 204, pure water outlet copper tube; 205, cold and hot water inlet hoses; 206, pure water hose; 207, quick connector; 3, water outlet pipe joint; 4, buckle ring; 5, pull-out stainless steel tube; 6, pull-out tube assembly; 601, plastic ferrule; 602, pull-out purified water hose; 603, pull-out water outlet head; 7, water outlet three-way converter; 8, PEX tube; 9, counterweight ball; 10, O-ring; 11, mixing valve core; 12, gland; 13, decorative cover; 14, mixing water handle; 15, purified water valve seat; 16, purified water valve core; 17, purified water handle; 18, assembly component; 1801, installation copper screw; 1802, base; 1803, installation nut; 19, installation rubber; 20, installation gasket. Detailed Embodiments

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the description of this application in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the description, the claims, and the drawings of this application are intended to cover non-exclusive inclusion.

[0024] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of this application. The phrase "embodiments" appearing in various places in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0025] The orientation terms appearing in the following description are all the directions shown in the figures and do not limit the specific structure of this application. For example, in the description of this application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of this application.

[0026] In the description of the present application, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, the "connection" or "coupling" of mechanical structures can refer to a physical connection. For example, a physical connection can be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through screws, bolts, or other fixing members; a physical connection can also be a detachable connection, such as a snap connection or a snap-fit connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0027] In order to enable those skilled in the art of the present technology to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0028] The present utility model provides a Figures 1-4 pull-out kitchen faucet with a pure water function as shown in the figure, which includes a faucet body 1. An inlet assembly 2 is threadedly connected inside the faucet body 1. An outlet pipe joint 3 is threadedly connected to the top of the faucet body 1. A snap ring 4 is sleeved on the surface of the outlet pipe joint 3. A pull-out stainless steel pipe 5 is snap-connected to the surface of the snap ring 4 through a snap. A pull-out pipe assembly 6 is sleeved inside the pull-out stainless steel pipe 5. The inlet assembly 2 includes a cold and hot water inlet copper pipe 201, a mixed water outlet copper pipe 202, a pure water inlet copper pipe 203, a pure water outlet copper pipe 204, cold and hot water inlet hoses 205, a pure water hose 206, and a quick connector 207. Two cold and hot water inlet copper pipes 201 are threadedly connected inside the faucet body 1. A mixed water outlet copper pipe 202 is threadedly connected inside the faucet body 1. A pure water inlet copper pipe 203 is threadedly connected inside the faucet body 1. A pure water outlet copper pipe 204 is threadedly connected inside the faucet body 1. Cold and hot water inlet hoses 205 are threadedly connected to the bottoms of the two cold and hot water inlet copper pipes 201. A pure water hose 206 is threadedly connected to the bottom of the pure water inlet copper pipe 203. A quick connector 207 is connected through the bottom of the pure water outlet copper pipe 204. The pull-out pipe assembly 6 includes a plastic ferrule 601, a pull-out pure water hose 602, and a pull-out water outlet head 603. A plastic ferrule 601 is sleeved inside the pull-out stainless steel pipe 5. A pull-out pure water hose 602 is sleeved inside the plastic ferrule 601. A pull-out water outlet head 603 is threadedly connected to the side of the pull-out pure water hose 602. The pull-out pure water hose 602 is slidably connected inside the pull-out stainless steel pipe 5.

[0029] Among them, the bottom of the mixed water outlet copper pipe 202 is threadedly connected to a water outlet three-way converter 7. The bottom of the water outlet three-way converter 7 is connected through to a PEX pipe 8. The bottom of the quick connector 207 is connected through to a PEX pipe 8. The bottom of the pull-out purified water hose 602 is connected through to a water outlet three-way converter 7.

[0030] The water outlet three-way converter 7 can facilitate the outflow of purified water or mixed water.

[0031] Among them, a counterweight ball 9 is sleeved on the surface of the pull-out purified water hose 602, and two O-rings 10 are sleeved on the surface of the water outlet pipe joint 3.

[0032] The O-ring 10 can increase the friction force, improve the sealing performance of the water outlet pipe joint 3, and avoid water leakage.

[0033] Among them, a mixing valve core 11 is sleeved on the right side inner wall of the faucet main body 1. A gland 12 is threadedly connected to the right side inner wall of the faucet main body 1. A decorative cover 13 is threadedly connected to the side surface of the gland 12. The surface of the valve core rod of the mixing valve core 11 is threadedly connected to a mixing water handle 14 through screws.

[0034] The mixing water handle 14 can control the opening of the valve core rod of the mixing valve core 11, so that the cold and hot water inlet channels and the mixed water outlet channel are communicated.

[0035] Among them, a purified water valve seat 15 is threaded on the left side inner wall of the faucet main body 1. A purified water valve core 16 is threadedly connected to the side surface of the purified water valve seat 15. The surface of the valve core rod of the purified water valve core 16 is threadedly connected to a purified water handle 17 through screws. An O-ring 10 is sleeved on the surface of the purified water valve seat 15.

[0036] When the purified water handle 17 is opened forward, it can control the opening of the purified water valve core 16, so that the purified water flows in from the purified water hose 206.

[0037] Among them, an assembly component 18 is threadedly connected to the bottom of the faucet main body 1. The assembly component 18 includes an installation copper screw 1801 threadedly connected to the bottom of the faucet main body 1. A base 1802 is sleeved on the surface of the installation copper screw 1801. An installation nut 1803 is threadedly connected to the bottom of the installation copper screw 1801.

[0038] The installation nut 1803 can limit and fix the installation copper screw 1801.

[0039] Among them, an installation rubber 19 is sleeved on the surface of the installation copper screw 1801, and an installation gasket 20 is sleeved on the surface of the installation copper screw 1801.

[0040] The installation rubber 19 can increase the friction force, improve the sealing performance of the device, and avoid water leakage.

[0041] Working principle: When using this pull-out kitchen faucet with a pure water function, when the pure water handle 17 is turned forward to control the opening of the pure water valve core 16, pure water will flow in from the pure water hose 206, then flow through the pure water inlet copper pipe 203, and then flow through the pure water inlet copper pipe 203 to the pure water valve core 16, and then flow from the pure water valve core 16 into the pure water outlet copper pipe 204. It flows from the pure water outlet copper pipe 204 into the inner cavity of the quick connector 207, flows from the inner cavity of the quick connector 207 into the inner cavity of the PEX pipe 8, flows out from the PEX pipe 8 into the pure water channel of the outlet tee converter 7, flows out from the pure water channel cavity of the outlet tee converter 7 into the pure water channel of the pull-out pure water hose 602, and then flows out from the pure water channel of the pull-out pure water hose 602 into the pure water channel of the pull-out water head 603. Finally, the pure water flows out from the outlet channel of the pull-out water head 603.

[0042] When the mixed water handle 14 is turned to the right and then rotated forward and backward, the mixed water handle 14 controls the opening of the valve core rod of the mixed valve core 11, and the cold and hot water inlet channels and the mixed water outlet channel are connected. Cold and hot water will flow in from the cold and hot water inlet hose 205 into the water channel of the cold and hot water inlet copper pipe 201, and then flow from the water channel of the cold and hot water inlet copper pipe 201 into the mixed valve core 11. The cold and hot water is mixed into mixed water through the valve core and flows into the mixed water outlet copper pipe 202. Then it flows out from the mixed water outlet copper pipe 202 into the mixed water channel of the outlet tee converter 7, then flows from the mixed water channel into the mixed water outlet channel of the pull-out pure water hose 602, and then flows out from the mixed water outlet channel of the pull-out pure water hose 602 into the mixed water outlet channel of the pull-out water head 603. Finally, the mixed water flows out from the outlet channel through the mixed water outlet channel of the pull-out water head 603.

[0043] In summary, through the settings of the water inlet assembly 2, the pull-out pipe assembly 6, the mixed water handle 14, the mixed valve core 11, the pure water handle 17, the pure water valve core 16, and the outlet tee converter 7, by designing the pull-out hose into a double-channel structure to form a pipe-in-pipe, that is, a design mode of sleeving a small pipe inside a large pipe. A circular double-channel structure is formed by combining the large and small pipes, allowing the large circular water channel to output mixed water and the small circular water channel in the middle to output pure water. Thus, the structure design of a double-channel pipe-in-pipe is realized, where the same pull-out hose can output both ordinary mixed water and pure water, greatly meeting the problem that customers previously had no pure water function when buying a pull-out faucet, and avoiding the embarrassing situation where customers had to buy another set of pure water faucets when buying a pull-out kitchen faucet. It fully meets the usage requirement of being able to use pure water when buying a pull-out kitchen faucet, and it is more convenient and flexible for customers to operate and use, which helps to greatly increase the sales volume of the product.

[0044] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A pull-out kitchen faucet with a pure water function, comprising a faucet body (1), characterized in that: The inner thread of the faucet body (1) is connected to a water inlet assembly (2), the top of the faucet body (1) is connected to a water outlet pipe joint (3), a buckle (4) is sleeved on the surface of the water outlet pipe joint (3), a pull-out stainless steel pipe (5) is clamped on the surface of the buckle (4) through a buckle, and a pull-out pipe assembly (6) is sleeved inside the pull-out stainless steel pipe (5); The water inlet assembly (2) comprises a cold and hot water inlet copper tube (201), a mixed water outlet copper tube (202), a pure water inlet copper tube (203), a pure water outlet copper tube (204), a cold and hot water inlet hose (205), a pure water hose (206) and a quick connector (207); the internal thread of the faucet body (1) is connected to the two cold and hot water inlet copper tubes (201); the internal thread of the faucet body (1) is connected to the mixed water outlet copper tube (202); the faucet body (1) is connected to the mixed water outlet copper tube (202); the faucet body (1) is connected to the mixed water outlet copper tube (202); the faucet body (1) is connected to the mixed water outlet copper tube (203), ... The faucet body (1) is internally threadedly connected to a pure water inlet copper tube (203), the faucet body (1) is internally threadedly connected to a pure water outlet copper tube (204), the bottoms of the two cold and hot water inlet copper tubes (201) are threadedly connected to cold and hot water inlet hoses (205), the bottom of the pure water inlet copper tube (203) is threadedly connected to a pure water hose (206), and the bottom of the pure water outlet copper tube (204) is through-connected to a quick connector (207); The pull-out pipe assembly (6) comprises a plastic ferrule (601), a pull-out water cleaning hose (602) and a pull-out water outlet head (603); the pull-out stainless steel pipe (5) is sleeved with the plastic ferrule (601), the pull-out water cleaning hose (602) is sleeved with the plastic ferrule (601), the side of the pull-out water cleaning hose (602) is threadedly connected to the pull-out water outlet head (603), and the pull-out stainless steel pipe (5) is slidably connected to the pull-out water cleaning hose (602).

2. A pull-out kitchen faucet with pure water function according to claim 1, characterized in that: The bottom of the mixed water outlet copper pipe (202) is threadedly connected to a water outlet three-way converter (7), the bottom of the water outlet three-way converter (7) is through-connected to a PEX pipe (8), the bottom of the quick connector (207) is through-connected to a PEX pipe (8), and the bottom of the pull-out clean water hose (602) is through-connected to a water outlet three-way converter (7).

3. The pull-out kitchen faucet with pure water function according to claim 1, characterized in that: A counterweight ball (9) is sleeved on the surface of the pull-out water purification hose (602), and two O-rings (10) are sleeved on the surface of the water outlet pipe joint (3).

4. The pull-out kitchen faucet with pure water function according to claim 1, characterized in that: A mixing valve core (11) is sleeved on the right side of the inner wall of the faucet body (1), a pressure cap (12) is threadedly connected to the right side of the inner wall of the faucet body (1), a decorative cover (13) is threadedly connected to the side of the pressure cap (12), and a mixing water handle (14) is threadedly connected to the surface of the valve core rod of the mixing valve core (11) via a screw thread.

5. The pull-out kitchen faucet with pure water function according to claim 1, characterized in that: The inner wall of the faucet body (1) is provided with a clean water valve seat (15) threaded on the left side, the side of the clean water valve seat (15) is threadedly connected to a clean water valve core (16), the surface of the valve core rod of the clean water valve core (16) is threadedly connected to a clean water handle (17), and the surface of the clean water valve seat (15) is sleeved with an O-ring (10).

6. The pull-out kitchen faucet with pure water function according to claim 1, characterized in that: The bottom of the faucet body (1) is threadedly connected to an assembly component (18), and the assembly component (18) includes a mounting screw (1801) threadedly connected to the bottom of the faucet body (1), a base (1802) is sleeved on the surface of the mounting screw (1801), and a mounting nut (1803) is threadedly connected to the bottom of the mounting screw (1801).

7. The pull-out kitchen faucet with pure water function according to claim 6, characterized in that: The surface of the mounting screw copper (1801) is sleeved with a mounting rubber (19), and the surface of the mounting screw copper (1801) is sleeved with a mounting gasket (20).