CN219911859U

CN219911859U - Mixed tap

Info

Publication number: CN219911859U
Application number: CN202321552757.2U
Authority: CN
Inventors: 杨超凌
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-10-27
Anticipated expiration: 2033-06-16

Abstract

The utility model discloses a mixing tap, which belongs to a tap, and has low manufacturing efficiency and easy pollution caused by copper casting for the existing tap main body. According to the scheme, the runner core and the shell are assembled into the faucet main body in an assembling mode, the runner core and the shell can be manufactured rapidly and efficiently, and the production efficiency of products can be improved relative to the cast faucet main body. In addition, the runner core can be made of materials capable of avoiding water pollution. And the at least two sections of cores are assembled into the runner core along the length direction of the shell, so that the runner is easier to implement.

Description

Mixed tap

Technical Field

The utility model belongs to a faucet, and particularly relates to a mixing faucet for mixing hot water and cold water into mixed water.

Background

A mixing tap, such as a shower tap for adjusting water temperature during shower, is used for mixing hot water and cold water into warm water with moderate temperature. The existing mixed water tap is mainly characterized in that a tap main body is cast by copper alloy, a water flow channel is formed in the tap main body, the manufacturing efficiency is low, and the cast copper alloy contains elements harmful to human bodies, such as lead, and the like, so that the mixed water tap is not beneficial to human health. The assembly structure improves the production efficiency of the product, changes the material forming the flow passage, and avoids the water pollution from becoming the technical development direction of the mixing tap.

Disclosure of Invention

The utility model aims to solve the technical problems and the technical task of overcoming the defects of low manufacturing efficiency and easy water pollution caused by copper casting for the existing faucet main body, providing the water mixing faucet with an assembly structure, improving the production efficiency of products, changing the material forming a flow passage and avoiding the water pollution caused by the water mixing faucet.

In order to achieve the above purpose, the water mixing tap of the utility model comprises a shell, a valve core and a handle for taking the valve core to act to close the tap, open the tap and adjust the water outlet of the tap, wherein the shell is provided with a first water inlet connecting pipe, a second water inlet connecting pipe and a water outlet pipe, and is characterized in that: the shell is internally provided with a runner core used for configuring the runner, the runner core comprises at least two sections of cores, the at least two sections of cores are assembled into the runner core along the length direction of the shell, a first water inlet runner, a second water inlet runner and a water outlet runner are arranged in the runner core and between the runner core and the shell, the first water inlet runner is communicated with a first water inlet connecting pipe and a valve core, the second water inlet runner is communicated with a second water inlet connecting pipe and the valve core, and the water outlet runner is communicated with the valve core and a water outlet pipe. Accordingly, the runner core and the shell are assembled into the faucet main body in an assembling mode, the runner core and the shell can be manufactured rapidly and efficiently by utilizing the existing processing technology, and compared with the cast faucet main body, the production efficiency of products can be improved. Meanwhile, the runner core can be made of materials capable of avoiding water pollution. Further, the at least two sections of cores are assembled into the runner core along the length direction of the shell, so that the runner is easier to implement.

In one embodiment, the at least two sections of cores are a first core and a second core, the first core and the second core are directly spliced and assembled together along the length direction of the shell to form a runner core, and the spliced part is sealed; the valve core is assembled at one end of the shell;

the first water inlet flow passage comprises a first flow cavity which is positioned between the shell and the first core body and communicated with the first water inlet connecting pipe, and a first flow hole which is positioned in the first core body and the second core body and connected with the first flow cavity and the valve core;

the second water inlet flow passage comprises a second flow cavity which is positioned between the shell and the second core body and communicated with the second water inlet connecting pipe, and a second flow hole which is positioned in the second core body and connected with the second flow cavity and the valve core;

the water outlet flow passage comprises a water outlet flow cavity which is positioned between the shell and the second core body and communicated with the water outlet pipe, and a water outlet flow hole which is positioned in the second core body and connected with the water outlet flow cavity and the valve core.

The structure is characterized in that the first core body and the second core body are directly spliced and assembled together along the length direction of the shell to form the runner core, so that the first core body and the second core body are separately and independently manufactured and assembled into the runner core, and a runner with reasonable layout can be formed.

The first core is located in the housing adjacent to the first end of the housing, the second core is located in the housing adjacent to the second end of the housing, and the valve core is assembled at the second end of the housing and is located at the end face of the second core. The structure of the faucet is controlled from one end of the shell.

In order to keep the matching relation between the valve core and the runner core and avoid water leakage, the first core is pressed on the first baffle ring by the first pressing cap which is connected with the first end of the shell through threads to be positioned and fixed; the second core is fixed by being pressed on the second baffle ring by the valve core through the valve core pressing cap which is connected with the second end of the shell through threads.

In another embodiment, the at least two sections of cores are a first core, a second core and a valve core seat, the first core and the second core are symmetrically inserted at two ends of the valve core seat to form a runner core, and the inserted parts are sealed; the valve core is assembled in the middle of the shell and is arranged on the valve core seat; the valve core seat is provided with a first water inlet communication hole, a second water inlet communication hole and a water outlet communication hole;

the first water inlet flow passage comprises a first flow cavity which is positioned between the shell and the first core body and communicated with the first water inlet connecting pipe, and a first flow hole which is positioned in the first core body and connected with the first flow cavity and the first water inlet communication hole;

the second water inlet flow passage comprises a second flow cavity which is positioned between the shell and the second core body and communicated with the second water inlet connecting pipe, and a second flow hole which is positioned in the second core body and connected with the second flow cavity and the second water inlet communication hole;

the water outlet flow passage comprises a water outlet circulation cavity and a water outlet communication hole, wherein the water outlet circulation cavity is positioned between the shell and the valve core seat and communicated with the water outlet pipe, and the water outlet communication hole is connected with the water outlet circulation cavity and the valve core.

The structure is characterized in that the first core body and the second core body are symmetrically inserted into two ends of the valve core seat to form the runner core, so that the first core body, the second core body and the valve core seat are separately and independently manufactured and assembled into the runner core, and a runner with reasonable layout can be formed. The tap is thus configured to be operated from the middle of the housing.

In order to keep the matching relation of the valve core and the runner core and avoid water leakage, the first core body, the valve core seat and the second core body are pressed and positioned in the shell by a first pressing cap connected to the first end of the shell through threads and a second pressing cap connected to the second end of the shell through threads.

In order to avoid mutual interference of the respective flow chambers and to ensure the respective flow capacities, the positions of the first flow chamber, the second flow chamber and the outlet flow chamber are offset from each other with respect to the longitudinal direction of the housing.

In order to reduce the manufacturing cost of the product and improve the production efficiency of the product, the shell is a stainless steel tube, and the runner core is a plastic component. Therefore, the shell can be obtained by directly purchasing a stainless steel pipe and cutting the stainless steel pipe, the plastic components can be manufactured by injection molding, and then the plastic components are assembled into the plastic component. Compared with a cast shell, the cost can be greatly reduced and the production efficiency can be improved.

Further, the water outlet pipe comprises a stainless steel pipe shell and a plastic inner core which is hermetically assembled in the stainless steel pipe shell, a pipe joint is welded on the shell, and the pipe joint is spliced in the plastic inner core and is hermetically fixed with the plastic inner core. Thereby improving the production efficiency of the product and reducing the manufacturing cost of the product as the case.

In order to endow the faucet with a multidirectional water outlet function, a water separator is arranged on the water outlet pipe.

The utility model is characterized in that a runner core for configuring a runner is assembled in a shell, the runner core comprises at least two sections of cores, the at least two sections of cores are assembled into the runner core along the length direction of the shell, a first water inlet runner, a second water inlet runner and a water outlet runner are arranged in the runner core and between the runner core and the shell, the first water inlet runner is communicated with a first water inlet connecting pipe and a valve core, the second water inlet runner is communicated with a second water inlet connecting pipe and the valve core, and the water outlet runner is communicated with the valve core and a water outlet pipe. Accordingly, the runner core and the shell are assembled into the faucet main body in an assembling mode, the runner core and the shell can be manufactured rapidly and efficiently by utilizing the existing processing technology, and compared with the cast faucet main body, the production efficiency of products can be improved. Meanwhile, the runner core can be made of materials capable of avoiding water pollution. Further, the at least two sections of cores are assembled into the runner core along the length direction of the shell, so that the runner is easier to implement.

Drawings

FIG. 1 is an axial side view of a mixing faucet according to embodiment 1 of the present utility model;

FIG. 2 is a schematic front view of the faucet of FIG. 1;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a B-B cross-sectional view of FIG. 2;

FIG. 5 is an exploded view of the mixing faucet of FIGS. 1-4;

FIG. 6 is a schematic diagram of another view of the structure of FIG. 5;

FIG. 7 is an axial side view of the mixing faucet of embodiment 2 of the present utility model;

FIG. 8 is a schematic front view of the faucet of FIG. 7;

FIG. 9 is a C-C cross-sectional view of FIG. 8;

FIG. 10 is a D-D sectional view of FIG. 9;

FIG. 11 is an exploded view of the mixing faucet of FIGS. 7-10;

FIG. 12 is a schematic view of the structure of FIG. 11 from another perspective;

the reference numerals in the figures illustrate:

100 shells, 101 first water inlet connecting pipes, 102 second water inlet connecting pipes, 103 water outlet pipes, 104 first press caps, 105 first check rings, 106 valve core press caps, 107 second check rings, 108 second press caps, 109 stainless steel pipe shells, 110 plastic inner cores, 111 pipe joints and 112 water separators; 113 first end, 114 second end, 115 first decorative cover, 116 third decorative cover, 117 set screw, 118 first water outlet, 119 second water outlet, 120 bubbler, 121 second decorative cover;

200 valve cores and 201 valve rods;

300 handles;

400 runner cores, 401 first cores, 402 second cores, 403 valve core seats, 404 first water inlet communication holes, 405 second water inlet communication holes, 406 water outlet communication holes, 407 cylindrical sections and 408 round holes;

501 first inlet flow channel, 502 second inlet flow channel, 503 outlet flow channel, 504 first flow channel, 505 first flow channel, 506 second flow channel, 507 second flow channel, 508 outlet flow channel, 509 outlet flow channel.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms "comprises" and "comprising" and any variations thereof, in the description and claims, are intended to cover a non-exclusive inclusion, such as a method or article, that comprises a list of features does not necessarily limit the features to those expressly listed, but may include other features not expressly listed that may be included in such method or article.

In the description of the present utility model, it should be understood that the technical features defined by the terms "first", "second", etc. having sequential concepts are merely for the purpose of clearly describing the defined technical features, so that the defined technical features can be clearly distinguished from other technical features, and are not so named as to represent actual implementation, and thus should not be construed as limiting the present utility model.

The present utility model will be described in detail with reference to specific embodiments and drawings.

Example 1

As shown in fig. 1 to 6, the mixing tap includes a housing 100, a flow path core 400, a valve cartridge 200, and a handle 300.

The housing 100 is made of stainless steel pipe cut-out, and a step is machined on the inner wall of the housing for axial positioning. Internal threads are provided at the housing first end 113 and the housing second end 114. The shell 100 is provided with a first water inlet connecting pipe 101, a second water inlet connecting pipe 102 and a water outlet pipe 103.

The runner core 400 is formed by directly inserting and assembling the first core 401 and the second core 402 along the length direction of the shell, and the insertion part is sealed. Specifically, a cylindrical section 407 is arranged at one end of the first core 401 facing the second core, a round hole 408 is arranged at one end of the second core 402 facing the first body, the cylindrical section 407 is inserted into the round hole 408, and a sealing ring is sleeved on the cylindrical section to realize the sealing of the plug-in position. In other embodiments, the cylindrical section and the circular bore may be interchanged in position. In order to avoid dislocation caused by mutual rotation of the first core body and the second core body at the plugging position, a groove 409 and a pin 410 are separately arranged on the first core body and the second core body, and when the cylindrical section 407 is inserted into the round hole 408, the pin is inserted into the groove to prevent the first core body and the second core body from rotating relatively, so that the first core body and the second core body keep a stable assembly relationship. The first core body and the second core body are injection molding pieces, so that the runner core is a plastic component assembled together.

The first core 401 is located within the housing 100 adjacent the housing first end 113. The second core is positioned within the housing 100 adjacent the housing second end 114. The valve cartridge 200 is mounted to the housing second end 114 and sits on an end face of the second cartridge body 402. The first core 401 is held in place by the first press cap 104 screwed onto the first end 113 of the housing on the first retainer ring 105, the first retainer ring 105 being supported by a step toward the first end of the housing. The first press cap 104 is shielded by the first decorative cover 115. The second core 402 is positioned and secured by the spool press cap 106 threaded onto the housing second end 114 being held against the second retainer ring 107 by the spool 200, the second retainer ring 107 being supported by a step toward the housing second end. The spool press cap 106 is shielded by a third decorative cover 116.

The flow channels are configured by means of a flow channel core 400 fitted within the housing. A first water inlet flow channel 501, a second water inlet flow channel 502 and a water outlet flow channel 503 are arranged in the flow channel core 400 and between the flow channel core and the shell 100, the first water inlet flow channel 501 is communicated with the first water inlet connecting pipe 101 and the valve core 200, the second water inlet flow channel 502 is communicated with the second water inlet connecting pipe 102 and the valve core 200, and the water outlet flow channel 503 is communicated with the valve core 200 and the water outlet pipe 103. The first water inlet flow path 501, the second water inlet flow path 502 and the water outlet flow path 503 are shown by dotted lines in fig. 3.

In view of the fact that the flow channel core 400 is formed by inserting the first core 401 into the second core 402, the first water inlet flow channel 501 includes a first flow cavity 504 located between the housing 100 and the first core 401 and communicating with the first water inlet connection pipe 101, and a first flow hole 505 located between the first core 401 and the second core 402 and connecting the first flow cavity 504 and the valve core 200. The second inlet flow passage 502 includes a second flow chamber 506 between the housing 100 and the second core 402 and communicating with the second inlet nipple 102, and a second flow hole 507 in the second core 402 connecting the second flow chamber 506 with the valve cartridge 200. The water outlet flow channel 503 includes a water outlet flow chamber 508 located between the housing 100 and the second core 402 and communicating with the water outlet pipe 103, and a water outlet flow hole 509 located in the second core 402 and connecting the water outlet flow chamber 508 and the valve core 200. The positions of the first flow chamber 504, the second flow chamber 506, and the outlet flow chamber 508 are offset from one another with respect to the length of the housing. In order to achieve sealing, sealing rings are disposed between the first core and the valve core and between the second core and the valve core, so that the first water inlet flow channel 501, the second water inlet flow channel 502 and the water outlet flow channel 503 are isolated from each other.

The water outlet pipe 103 comprises a stainless steel pipe shell 109 and a plastic inner core 110 which is hermetically assembled in the stainless steel pipe shell, a pipe joint 111 is welded on the shell 100, and the pipe joint 111 is inserted in the plastic inner core 110 and is hermetically fixed with the plastic inner core through a set screw 117. The adjacent portions of the stainless steel tube housing 109 and the shell 100 are contacted together by coincident intersecting lines and fixed by means of screws 117. The water separator 112 is mounted on the water outlet pipe 103, and the water separator 112 can switch the water flow to flow out of the first water outlet 118 or flow out of the second water outlet 119. In the illustration, a first water outlet 118 is provided for connection to a shower head via a hose, and a bubbler 120 is mounted in a second water outlet 119 for direct outward delivery of water.

The handle 300 is mounted on the valve stem 201 of the cartridge 200 for carrying the cartridge action to close the faucet, open the faucet, and regulate the faucet outlet.

When the mixing tap is used, the first water inlet connecting pipe 101 can be connected with a hot water pipe, the second water inlet connecting pipe 102 is connected with a cold water pipe, hot water flows to the valve core 200 through the first water inlet flow passage 501, and cold water flows to the valve core 200 through the second water inlet flow passage 502. The flip handle 300 with the valve cartridge 200 is actuated to close the faucet, open the faucet, and regulate the faucet outlet when the faucet is opened. When the tap is opened, the water inflow of hot water and cold water can be adjusted by adjusting the tap water outlet, so that the hot water and the cold water are mixed into warm water in the valve core, and the hot water can be closed, only the cold water can be opened, or the cold water can be closed, and only the hot water can be opened. Water flowing out of the valve core 200 flows through the water outlet flow channel 503 to the water outlet pipe 103, and flows out of the first water outlet 118 or the second water outlet 119 through the water distributor 112 switching water flow. The direction of the water flow is shown in fig. 3-4 by the dashed lines marked with arrows.

Example 2

As shown in fig. 7 to 12, the mixing tap includes a housing 100, a flow path core 400, a valve cartridge 200, and a handle 300.

The housing 100 is made of stainless steel tube. Internal threads are provided at the housing first end 113 and the housing second end 114. The shell is provided with a first water inlet connecting pipe 101, a second water inlet connecting pipe 102 and a water outlet pipe 103.

The runner core 400 is formed by symmetrically inserting a first core 401 and a second core 402 at two ends of a valve core seat 403. The plug-in part is sealed. Specifically, one end of the first core 401 and the second core 402, which faces the valve core seat 403, is provided with a cylindrical section as in embodiment 1, two ends of the valve core seat 403 are provided with round holes as in embodiment 1, the cylindrical sections are inserted into the corresponding round holes, and a sealing ring is sleeved on the cylindrical sections to realize the sealing of the plugging part. In other embodiments, the cylindrical section and the circular bore may be interchanged in position. In order to avoid dislocation caused by mutual rotation of the first core 401, the second core 402 and the valve core seat 403 at the plugging position, grooves as in embodiment 1 are formed on the first core and the second core, pins as in embodiment 1 are formed on the valve core seat 403, and when the cylindrical section is inserted into the circular hole, the pin insertion grooves prevent the first core 401 and the second core 402 from rotating relative to the valve core seat 403, so that the first core, the second core and the valve core seat maintain a stable assembly relationship. The first core 401, the second core 402, and the valve core seat 403 are all injection molded parts, so the runner core 400 is a plastic component assembled together.

The first core 401 is positioned within the housing 100 adjacent the housing first end 113, the second core 402 is positioned within the housing adjacent the housing second end 114, and the valve cartridge seat 403 is positioned between the first core and the second core.

The valve cartridge 200 fits in the middle of the housing and sits on a cartridge seat 403. The valve core holder 403 has a first water inlet communication hole 404, a second water inlet communication hole 405, and a water outlet communication hole 406.

The first spool 401, spool seat 403, and second spool 402 are compressively positioned within the housing by the first press cap 104 being threadably connected to the first end of the housing and the second press cap 108 being threadably connected to the second end of the housing. The first press cap 104 is shielded by the first decorative cover 115, and the second press cap 108 is shielded by the second decorative cover 121.

The mixing tap is provided with a flow passage by means of a flow passage core 400 assembled in a housing. A first water inlet flow channel 501, a second water inlet flow channel 502 and a water outlet flow channel 503 are arranged in the flow channel core 400 and between the flow channel core and the shell, the first water inlet flow channel 501 is communicated with the first water inlet connecting pipe 101 and the valve core 200, the second water inlet flow channel 502 is communicated with the second water inlet connecting pipe 102 and the valve core 200, and the water outlet flow channel 503 is communicated with the valve core 200 and the water outlet pipe 103. The first water inlet flow path 501, the second water inlet flow path 502, and the water outlet flow path 503 are shown in fig. 9 by broken lines.

The first water inlet flow passage 501 includes a first flow chamber 504 located between the housing 100 and the first core 401 and communicating with the first water inlet nipple 101, and a first flow hole 505 located in the first core 401 and connecting the first flow chamber 504 and the first water inlet communication hole 404.

The second water inlet flow passage 502 includes a second flow chamber 506 located between the housing 100 and the second core 402 and communicating with the second water inlet nipple 102, and a second flow hole 507 located in the second core 402 and connecting the second flow chamber 506 and the second water inlet communication hole 405.

The water outlet flow channel 503 includes a water outlet flow chamber 508 and a water outlet communication hole 406, which are located between the housing 100 and the valve core seat 403 and are communicated with the water outlet pipe 103, and the water outlet communication hole 406 is connected with the water outlet flow chamber 508 and the valve core 200.

The positions of the first flow chamber 504, the second flow chamber 506, and the outlet flow chamber 508 are offset from one another with respect to the length of the housing.

When the mixing tap is used, the first water inlet connecting pipe 101 can be connected with a hot water pipe, the second water inlet connecting pipe 102 is connected with a cold water pipe, hot water flows to the valve core 200 through the first water inlet flow passage 501, and cold water flows to the valve core 200 through the second water inlet flow passage 502. The flip handle 300 with the valve cartridge action can close the faucet, open the faucet, and regulate the faucet outlet when the faucet is opened. When the tap is opened, the water inflow of hot water and cold water can be adjusted by adjusting the tap water outlet, so that the hot water and the cold water are mixed into warm water in the valve core, and the hot water can be closed, only the cold water can be opened, or the cold water can be closed, and only the hot water can be opened. The water flowing out of the valve core flows through the water outlet flow channel 503 to the water outlet pipe 103, and flows out of the first water outlet 118 or the second water outlet 119 through the water distributor 112 by switching the water flow. The direction of the water flow is shown in fig. 9-10 by the dashed lines marked with arrows.

Claims

1. The utility model provides a mix tap, includes casing (100), case (200) and is used for taking the case action to close tap, open tap and adjust handle (300) of tap play water, is equipped with first water inlet connection pipe (101), second water inlet connection pipe (102) and outlet pipe (103), characterized by on the casing: the runner core (400) used for configuring the runner is assembled in the shell, the runner core comprises at least two sections of cores, the at least two sections of cores are assembled into the runner core along the length direction of the shell, a first water inlet runner (501), a second water inlet runner (502) and a water outlet runner (503) are arranged in the runner core and between the runner core and the shell, the first water inlet runner (501) is communicated with the first water inlet connecting pipe (101) and the valve core (200), the second water inlet runner (502) is communicated with the second water inlet connecting pipe (102) and the valve core (200), and the water outlet runner (503) is communicated with the valve core (200) and the water outlet pipe (103).

2. The mixing faucet of claim 1, wherein: the at least two sections of cores are a first core (401) and a second core (402), the first core and the second core are directly spliced and assembled together along the length direction of the shell to form a runner core, and the spliced part is sealed; the valve core (200) is assembled at one end of the shell (100);

the first water inlet flow channel (501) comprises a first flow cavity (504) which is positioned between the shell (100) and the first core body (401) and communicated with the first water inlet connecting pipe (101), and a first flow hole (505) which is positioned between the first core body (401) and the second core body (402) and is connected with the first flow cavity (504) and the valve core (200);

the second water inlet flow channel (502) comprises a second flow cavity (506) which is positioned between the shell (100) and the second core body (402) and communicated with the second water inlet connecting pipe (102), and a second flow hole (507) which is positioned in the second core body (402) and is connected with the second flow cavity (506) and the valve core (200);

the water outlet flow passage (503) comprises a water outlet flow cavity (508) which is positioned between the shell (100) and the second core body (402) and is communicated with the water outlet pipe (103), and a water outlet flow hole (509) which is positioned in the second core body (402) and is connected with the water outlet flow cavity (508) and the valve core (200).

3. The mixing faucet of claim 2, wherein: the first core (401) is located within the housing (100) adjacent the first end (113) of the housing, the second core (402) is located within the housing (100) adjacent the second end (114) of the housing, and the valve cartridge (200) is mounted at the second end (114) of the housing and seated on an end face of the second core (402).

4. A mixing faucet as claimed in claim 3, wherein: the first core body (401) is pressed on the first check ring (105) by a first pressing cap (104) which is connected with the first end (113) of the shell through threads and is positioned and fixed; the second core body (402) is pressed on the second check ring (107) through the valve core (200) by the valve core pressing cap (106) which is connected with the second end (114) of the shell through threads, and is positioned and fixed.

5. The mixing faucet of claim 1, wherein: the at least two sections of cores are a first core (401), a second core (402) and a valve core seat (403), the first core (401) and the second core (402) are symmetrically inserted at two ends of the valve core seat (403) to form a flow channel core (400), and the insertion parts are sealed; the valve core (200) is assembled in the middle of the shell (100) and is arranged on the valve core seat (403); the valve core seat (403) is provided with a first water inlet communication hole (404), a second water inlet communication hole (405) and a water outlet communication hole (406);

the first water inlet flow channel (501) comprises a first flow cavity (504) which is positioned between the shell (100) and the first core body (401) and communicated with the first water inlet connecting pipe (101), and a first flow hole (505) which is positioned in the first core body (401) and is connected with the first flow cavity (504) and the first water inlet communication hole (404);

the second water inlet flow channel (502) comprises a second flow cavity (506) which is positioned between the shell (100) and the second core body (402) and communicated with the second water inlet connecting pipe (102), and a second flow hole (507) which is positioned in the second core body (402) and is connected with the second flow cavity (506) and the second water inlet communication hole (405);

the water outlet flow passage (503) comprises a water outlet flow cavity (508) which is positioned between the shell (100) and the valve core seat (403) and is communicated with the water outlet pipe (103), and the water outlet communication hole (406) is connected with the water outlet flow cavity (508) and the valve core (200).

6. The mixing faucet of claim 5, wherein: the first core body (401), the valve core seat (403) and the second core body (402) are pressed and positioned in the shell by a first pressing cap (104) connected to the first end (113) of the shell through threads and a second pressing cap (108) connected to the second end (114) of the shell through threads.

7. The mixing faucet of any of claims 2-6, wherein: the position of the first flow chamber (504), the position of the second flow chamber (506) and the position of the outlet flow chamber (508) are offset from each other with respect to the length direction of the housing.

8. The mixing faucet of any of claims 1-6, wherein: the shell (100) is a stainless steel tube, and the runner core (400) is a plastic component.

9. The mixing faucet of any of claims 1-6, wherein: the water outlet pipe (103) comprises a stainless steel pipe shell (109) and a plastic inner core (110) which is hermetically assembled in the stainless steel pipe shell, a pipe joint (111) is welded on the shell (100), and the pipe joint (111) is spliced in the plastic inner core (110) and is hermetically fixed with the plastic inner core.

10. The mixing faucet of claim 9, wherein: the water outlet pipe (103) is provided with a water separator (112).