Dual channel faucet

Abstract

This utility model relates to a faucet, particularly a dual-channel faucet, comprising a base shell, a valve core seat installed inside the base shell, a first mounting hole and a second mounting hole provided on the base shell, a first valve core assembly installed on the first mounting hole, a second valve core assembly installed on the second mounting hole, a first mounting portion and a second mounting portion provided on the valve core seat, the first valve core assembly having a third mounting portion adapted to the first mounting portion, the third mounting portion passing through the first mounting hole and fixedly connected to the first mounting portion, and the second valve core assembly having a fourth mounting portion adapted to the second mounting portion, the fourth mounting portion passing through the second mounting hole and fixedly connected to the second mounting portion. Through the above design, this utility model eliminates the need for a corresponding cavity inside the base shell, allowing the base shell to adapt to valve core seats of different shapes, and preventing the valve core seat from being tightly attached to the inner wall of the base shell, thus avoiding scale buildup and facilitating later disassembly and maintenance.

Description

Technical Field

[0001] This utility model relates to a faucet, and more particularly to a dual-channel faucet. Background Technology

[0002] Patent CN221034105U discloses a water purifier kitchen faucet structure. The valve core seat is located on the end face of the main body away from the connecting pipe. The valve core seat is located on the end face of the main body away from the connecting pipe and inside the main body. It has a water purification pipe, a cold water pipe and a hot water pipe. The first locking cover and the second locking cover are provided with a tapered slope. The first locking cover and the second locking cover are tightly connected to the valve core seat through the tapered slope.

[0003] In the aforementioned patent, the body has an internal cavity that matches the valve core seat. The valve core seat is snapped into the cavity of the body, and finally the valve core seat is fixed by the first locking cover and the second locking cover.

[0004] However, the above-mentioned valve core seat installation method has the following disadvantages: 1) The cavity set inside the body can only be adapted to one type of valve core seat and cannot be adapted to other valve core seats with different shapes; 2) The valve core seat is tightly fitted inside the body, and scale inside the body can easily jam the valve core seat, making it inconvenient for later disassembly and maintenance. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a dual-channel faucet that can adapt to valve core seats of different shapes while avoiding scale buildup on the valve core seats, and facilitates later disassembly and maintenance.

[0006] The technical solution adopted by this utility model to solve the problem is as follows: a dual-channel faucet, including a base shell, a valve core seat installed inside the base shell, a first mounting hole and a second mounting hole provided on the base shell, a first valve core assembly installed on the first mounting hole, a second valve core assembly installed on the second mounting hole, a first mounting part and a second mounting part provided on the valve core seat; a third mounting part adapted to the first mounting part provided on the first valve core assembly, the third mounting part passing through the first mounting hole and fixedly connected to the first mounting part; a fourth mounting part adapted to the second mounting part provided on the second valve core assembly, the fourth mounting part passing through the second mounting hole and fixedly connected to the second mounting part; the valve core seat is suspended inside the base shell through the first valve core assembly and the second valve core assembly.

[0007] As a further improvement to the above technical solution, the first mounting part is disposed at the left end of the valve core seat, and the second mounting part is disposed at the right end of the valve core seat; the first mounting hole is disposed on the left side wall of the bottom shell, and the second mounting hole is disposed on the right side wall of the bottom shell; the first mounting hole is opposite to the first mounting part, and the second mounting hole is opposite to the second mounting part, and the first mounting part, the second mounting part, the first mounting hole and the second mounting hole are located on the same axis.

[0008] As a further improvement to the above technical solution, the first mounting part includes a first outer ring, and the inner sidewall of the first outer ring is provided with a first internal thread; the first valve core assembly includes a first valve core body and a first connecting member, the first connecting member is sleeved and fixed on the outer periphery of the first valve core body; the first connecting member is provided with a first external thread, the first external thread is screwed into the first internal thread, and the first outer ring abuts against the inner sidewall of the bottom shell.

[0009] As a further improvement to the above technical solution, the first valve core assembly further includes a first housing, which is sleeved on the outer periphery of the first connector; a first limiting boss is provided on the inner wall of the first housing, and a second limiting boss is provided on the first connector, the second limiting boss abutting against the left side of the first limiting boss, and the right end of the first housing abutting against the outer wall of the bottom shell.

[0010] As a further improvement to the above technical solution, a positioning pin is fixedly connected to the first outer ring, and a first positioning groove is provided inside the first outer shell, with the positioning pin inserted into the first positioning groove.

[0011] As a further improvement to the above technical solution, the second mounting part includes a second external thread; the second valve core assembly includes a second valve core body and a second connecting member, the second connecting member is sleeved and fixed on the outer periphery of the second valve core body; one end of the second connecting member is provided with a second internal thread, and the second external thread is screwed into the second internal thread.

[0012] As a further improvement to the above technical solution, the second valve core assembly also includes a second housing, which is sleeved on the outer periphery of the second connector, and a third limiting boss is provided on the inner wall of the second housing; a locking member is screwed to the other end of the second connector, the third limiting boss abuts against the left side of the locking member, and the second housing abuts against the outer wall of the bottom shell.

[0013] As a further improvement to the above technical solution, the second mounting hole is provided with a flange, the flange is folded outward, and the end of the second housing is provided with a second positioning groove, the flange being inserted into the second positioning groove.

[0014] As a further improvement to the above technical solution, a raw water pipeline and a purified water pipeline are installed on the upper end of the bottom shell, and a raw water path and a purified water path are provided inside the bottom shell. The raw water path is connected to the raw water pipeline, and the purified water path is connected to the purified water pipeline. A first flow channel and a second flow channel are provided inside the valve core seat. The first flow channel and the second flow channel are independent of each other. The first flow channel is connected to the raw water path, and the second flow channel is connected to the purified water path.

[0015] As a further improvement to the above technical solution, a sleeve assembly is also installed inside the bottom shell, and the sleeve assembly is fixedly installed on the upper end of the valve core seat; the sleeve assembly includes an inner tube and an outer tube, the inner tube forming the raw water path; the outer tube is sleeved on the outer periphery of the inner tube, and there is a first gap between the outer tube and the inner tube, the first gap forming the purified water path; the upper end of the valve core seat is provided with an upper mounting part, the lower end of the upper mounting part is provided with a first mounting port, and the upper end of the upper mounting part is provided with a second mounting port; the lower end of the inner tube extends downward and passes through the outer tube, the inner tube... The lower end of the inner tube is sealed and installed on the first mounting port, and the lower end of the inner tube is sealed and installed on the second mounting port; the output end of the first flow channel is located below the first mounting port, and the first flow channel communicates with the inner tube; there is a second gap between the inner tube and the inner wall of the upper mounting part, the upper end of the second gap communicates with the first gap, and the lower end of the second gap communicates with the second flow channel; the first flow channel and the second flow channel are respectively disposed at the left end and the right end of the valve core seat, and the first valve core assembly and the second valve core assembly respectively control the opening and closing of the first flow channel and the second flow channel.

[0016] The beneficial effects of this utility model are as follows: By providing a first mounting part and a second mounting part on the valve core seat, and providing a third mounting part and a fourth mounting part on the first valve core assembly and the second valve core assembly respectively, the valve core seat is suspended inside the bottom shell through the cooperation and fixation between the mounting parts. There is no need to set a corresponding cavity inside the bottom shell. On the one hand, this allows the bottom shell to adapt to valve core seats of different shapes. On the other hand, the valve core seat does not need to be tightly attached to the inner wall of the bottom shell, avoiding scale from getting stuck in the valve core seat, which facilitates later disassembly and maintenance. Attached Figure Description

[0017] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a partial structural cross-sectional view of the present invention; Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 for Figure 1Enlarged structural diagram at point B; Figure 4 This is a cross-sectional view of the valve core seat. Figure 5 This is a structural sectional view of the bottom shell; Figure 6 This is a partial exploded view of the structure of this utility model; Figure 7 This is a schematic diagram of the overall structure of this utility model; In the diagram: 1-bottom shell, 11-first mounting hole, 12-second mounting hole, 121-flanged flange, 2-valve core seat, 21-first mounting part, 211-first outer ring, 2111-first internal thread, 2112-locating pin, 22-second mounting part, 221-second external thread, 23-first flow channel, 24-second flow channel, 25-upper mounting part, 251-first mounting port, 252-second mounting port, 3-first valve core assembly, 31-first valve core body, 32-first connecting piece. 321-First external thread, 322-Second limiting boss, 33-First outer shell, 331-First limiting boss, 332-First positioning groove, 4-Second valve core assembly, 41-Second valve core body, 42-Second connecting piece, 421-Second internal thread, 43-Second outer shell, 431-Third limiting boss, 432-Second positioning groove, 44-Locking piece, 5-Raw water pipe, 6-Clean water pipe, 71-Inner pipe, 711-Raw water path, 72-Outer pipe, 721-Clean water path. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figures 1 to 7 A dual-channel faucet includes a base shell 1, within which a valve core seat 2 is installed. A first mounting hole 11 is provided on the left side wall of the base shell 1, and a second mounting hole 12 is provided on the right side wall of the base shell 1. A first valve core assembly 3 is installed in the first mounting hole 11, and a second valve core assembly 4 is installed in the second mounting hole 12. A first mounting portion 21 and a second mounting portion 22 are respectively provided at the left and right ends of the valve core seat 2. The first mounting hole 11 is opposite to the first mounting portion 21 (face-to-face arrangement), and the second mounting hole 12 is opposite to the second mounting portion 22. Mounting part 21, second mounting part 22, first mounting hole 11, and second mounting hole 12 are located on the same axis; the first valve core assembly 3 is provided with a third mounting part adapted to the first mounting part 21, the third mounting part passing through the first mounting hole 11 and fixedly connected to the first mounting part 21; the second valve core assembly 4 is provided with a fourth mounting part adapted to the second mounting part 22, the fourth mounting part passing through the second mounting hole 12 and fixedly connected to the second mounting part 22; the valve core seat 2 is suspended inside the bottom shell 1 by the first valve core assembly 3 and the second valve core assembly 4. There is no need to provide a cavity inside the bottom shell 1 corresponding to the shape of the valve core seat 2. This allows the bottom shell 1 to adapt to valve core seats 2 of different shapes, and also prevents the valve core seat 2 from being tightly attached to the inner wall of the bottom shell 1, avoiding scale buildup and facilitating later disassembly and maintenance; simultaneously, the fixing of the two valve core assemblies makes the overall structure robust.

[0024] In a preferred embodiment, the first mounting part 21 includes a first outer ring 211, and a first internal thread 2111 is provided on the inner sidewall of the first outer ring 211; the first valve core assembly 3 includes a first valve core body 31 and a first connecting member 32 fixed to the outer periphery of the first valve core body 31. A first external thread 321 is provided on the outer wall of the right end of the first connecting member 32. During the screwing process of the first external thread 321 and the first internal thread 2111, the first outer ring 211 and the first connecting member 32 approach each other, and the first outer ring 211 (the diameter of the first outer ring 211 is larger than the diameter of the first mounting hole 11) abuts against the inner sidewall of the bottom shell 1 to the left, thereby fixing the first valve core assembly 3, the valve core seat 2 and the bottom shell 1 together.

[0025] In a preferred embodiment, the first valve core assembly 3 further includes a first housing 33, which is sleeved on the outer periphery of the first connector 32; a first limiting boss 331 is provided on the inner wall of the first housing 33, and a second limiting boss 322 is not provided on the left end of the first connector 32, and the second limiting boss 322 abuts against the left side of the first limiting boss 331 (a sealing ring is provided between the two bosses). During the screwing process of the first external thread 321 and the first internal thread 2111, the first housing 33 moves to the right, and the right end of the first housing 33 abuts against the outer side surface of the left side wall of the bottom shell 1.

[0026] In a preferred embodiment, a positioning pin is fixedly connected to the first outer ring 211, and a first positioning groove 332 is provided inside the right end of the first housing 33, into which the positioning pin is inserted. This fixes the installation position of the first valve core assembly 3.

[0027] In a preferred embodiment, the second mounting part 22 includes a second external thread 221; the second valve core assembly 4 includes a second valve core body 41 and a second connector 42 fixedly connected to the outer periphery of the second valve core body 41; the left end of the second connector 42 is provided with a second internal thread 421, and the second external thread 221 is screwed to the second internal thread 421; the second valve core assembly 4 also includes a second housing 43, the second housing 43 is sleeved on the outer periphery of the second connector 42, a third limiting boss 431 is provided on the inner wall of the second housing 43, and a locking member 44 is screwed to the other end of the second connector 42 (with a constriction), the third limiting boss 431 abuts against the left side of the locking member 44, and the third limiting boss 431 is pushed to the left by screwing the locking member 44, so that the left end of the second housing 43 does not abut against the outer surface of the right side wall of the bottom shell 1.

[0028] In a preferred embodiment, the second mounting hole 12 is provided with a flange 121, which is folded outwards. The end of the second housing 43 is provided with a second positioning groove 432, and the flange 121 is inserted into the second positioning groove 432. This fixes the mounting position of the second valve core assembly 4.

[0029] Specifically, the upper end of the bottom shell 1 is equipped with a raw water pipe 5 and a purified water pipe 6. The bottom shell 1 contains a raw water path 711 and a purified water path 721. The raw water path 711 is connected to the raw water pipe 5, and the purified water path 721 is connected to the purified water pipe 6. The valve core seat 2 contains a first flow channel 23 and a second flow channel 24, which are independent of each other. The first flow channel 23 is connected to the raw water path 711, and the second flow channel 24 is connected to the purified water path 721. This allows one valve core seat 2 to control two types of water output.

[0030] In the preferred embodiment described above, a sleeve assembly is further installed inside the bottom shell 1, and the sleeve assembly is fixedly connected to the upper end of the valve core seat 2; the sleeve assembly includes an inner tube 71 and an outer tube 72, the middle part of the inner tube 71 constitutes the raw water passage 711; the outer tube 72 is sleeved on the outer periphery of the inner tube 71, the diameter of the outer tube 72 is larger than the diameter of the inner tube 71, and there is a first gap between the outer tube 72 and the inner tube 71, the first gap constituting the purified water passage 721; an upper mounting part 25 is provided at the upper end of the valve core seat 2, a first mounting port 251 is provided at the lower end of the upper mounting part 25, and a second mounting port 252 is provided at the upper end of the upper mounting part 25; the lower end of the inner tube 71 extends downward and passes through. The lower ends of the outer tube 72 and the inner tube 71 are sealed and installed on the first mounting port 251, and the lower ends of the inner tube 71 are sealed and installed on the second mounting port 252. The output end of the first flow channel 23 is located below the first mounting port 251, and the first flow channel 23 communicates with the inner tube 71. There is a second gap between the inner tube 71 and the inner wall of the upper mounting part 25. The upper end of the second gap communicates with the first gap, and the lower end of the second gap communicates with the second flow channel 24. The first flow channel 23 and the second flow channel 24 are respectively located at the left and right ends of the valve core seat 2. The first valve core assembly 3 and the second valve core assembly 4 control the opening and closing of the first flow channel 23 and the second flow channel 24, respectively. Through the pipe-in-pipe arrangement, the structure is reliable and does not allow water to flow between pipes.

[0031] Furthermore, the first flow channel 23 includes a hot water flow channel and a cold water flow channel; the bottom of the valve core seat 2 is provided with a clean water interface, a hot water interface and a cold water interface; the clean water interface is connected to the second flow channel 24, and the hot water interface and the cold water interface are respectively connected to the hot water flow channel and the cold water flow channel.

[0032] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A dual-channel faucet, comprising a base shell (1), wherein a valve core seat (2) is installed inside the base shell (1), and a first mounting hole (11) and a second mounting hole (12) are provided on the base shell (1), wherein a first valve core assembly (3) is installed on the first mounting hole (11), and a second valve core assembly (4) is installed on the second mounting hole (12), characterized in that: The valve core seat (2) is provided with a first mounting part (21) and a second mounting part (22); The first valve core assembly (3) is provided with a third mounting part adapted to the first mounting part (21), and the third mounting part passes through the first mounting hole (11) and is fixedly connected to the first mounting part (21); The second valve core assembly (4) is provided with a fourth mounting part adapted to the second mounting part (22), and the fourth mounting part passes through the second mounting hole (12) and is fixedly connected to the second mounting part (22).

2. A dual-channel faucet as described in claim 1, characterized in that: The first mounting part (21) is disposed at the left end of the valve core seat (2), and the second mounting part (22) is disposed at the right end of the valve core seat (2); The first mounting hole (11) is provided on the left side wall of the bottom shell (1), and the second mounting hole (12) is provided on the right side wall of the bottom shell (1); The first mounting hole (11) is opposite to the first mounting part (21), and the second mounting hole (12) is opposite to the second mounting part (22). The first mounting part (21), the second mounting part (22), the first mounting hole (11) and the second mounting hole (12) are located on the same axis.

3. A dual-channel faucet as described in claim 1, characterized in that: The first mounting part (21) includes a first outer ring (211), and the inner sidewall of the first outer ring (211) is provided with a first internal thread (2111). The first valve core assembly (3) includes a first valve core body (31) and a first connector (32), the first connector (32) being sleeved and fixed on the outer periphery of the first valve core body (31); The first connector (32) is provided with a first external thread (321), which is screwed to the first internal thread (2111), and the first outer ring (211) abuts against the inner sidewall of the bottom shell (1).

4. A dual-channel faucet as described in claim 3, characterized in that: The first valve core assembly (3) further includes a first housing (33), which is sleeved on the outer periphery of the first connector (32); The first outer shell (33) has a first limiting boss (331) on its inner wall and a second limiting boss (322) on its first connector (32). The second limiting boss (322) abuts against the left side of the first limiting boss (331) and the right end of the first outer shell (33) abuts against the outer wall of the bottom shell (1).

5. A dual-channel faucet as described in claim 4, characterized in that: A positioning pin (2112) is fixedly connected to the first outer ring (211), and a first positioning groove (332) is provided inside the first outer shell (33), and the positioning pin (2112) is inserted into the first positioning groove (332).

6. A dual-channel faucet as described in claim 1, characterized in that: The second mounting part (22) includes a second external thread (221); The second valve core assembly (4) includes a second valve core body (41) and a second connector (42), the second connector (42) being sleeved and fixed on the outer periphery of the second valve core body (41); One end of the second connector (42) is provided with a second internal thread (421), and the second external thread (221) is screwed to the second internal thread (421).

7. A dual-channel faucet as described in claim 6, characterized in that: The second valve core assembly (4) also includes a second housing (43), which is sleeved on the outer periphery of the second connector (42), and a third limiting boss (431) is provided on the inner wall of the second housing (43). The other end of the second connector (42) is screwed with a locking member (44), the third limiting boss (431) abuts against the left side of the locking member (44), and the second outer shell (43) abuts against the outer side wall of the bottom shell (1).

8. A dual-channel faucet as described in claim 7, characterized in that: The second mounting hole (12) is provided with a flange (121), which is folded outward. The end of the second housing (43) is provided with a second positioning groove (432), and the flange (121) is inserted into the second positioning groove (432).

9. A dual-channel faucet as described in claim 1, characterized in that: The bottom shell (1) is equipped with a raw water pipe (5) and a purified water pipe (6) at its upper end. The bottom shell (1) is provided with a raw water path (711) and a purified water path (721). The raw water path (711) is connected to the raw water pipe (5), and the purified water path (721) is connected to the purified water pipe (6). The valve core seat (2) is provided with a first flow channel (23) and a second flow channel (24). The first flow channel (23) and the second flow channel (24) are independent of each other. The first flow channel (23) is connected to the raw water channel (711), and the second flow channel (24) is connected to the purified water channel (721).

10. A dual-channel faucet as described in claim 9, characterized in that: A sleeve assembly is also installed inside the bottom shell (1), and the sleeve assembly is fixedly installed on the upper end of the valve core seat (2); The sleeve assembly includes an inner tube (71) and an outer tube (72), wherein the inner tube (71) constitutes the raw water passage (711). The outer tube (72) is sleeved on the outer periphery of the inner tube (71), and there is a first gap between the outer tube (72) and the inner tube (71), which constitutes the water purification channel (721). The upper end of the valve core seat (2) is provided with an upper mounting part (25), the lower end of the upper mounting part (25) is provided with a first mounting port (251), and the upper end of the upper mounting part (25) is provided with a second mounting port (252). The lower end of the inner tube (71) extends downward and passes through the outer tube (72). The lower end of the inner tube (71) is sealed and installed on the first mounting port (251), and the lower end of the inner tube (71) is sealed and installed on the second mounting port (252). The output end of the first flow channel (23) is located below the first mounting port (251), and the first flow channel (23) is connected to the inner tube (71); There is a second gap between the inner tube (71) and the inner wall of the upper mounting part (25), the upper end of the second gap is connected to the first gap, and the lower end of the second gap is connected to the second flow channel (24); The first flow channel (23) and the second flow channel (24) are respectively disposed at the left and right ends of the valve core seat (2), and the first valve core assembly (3) and the second valve core assembly (4) control the opening and closing of the first flow channel (23) and the second flow channel (24) respectively.

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