High-performance constant-temperature water mixing valve for kitchen

Abstract

The invention relates to the technical field of valves, in particular to a high-performance constant-temperature water mixing valve for a kitchen. A temperature adjusting seat is arranged in the shell; an adjusting knob is arranged at the top of the shell; the adjusting knob is connected with a temperature adjusting assembly; the temperature adjusting assembly is connected with an upper push rod; a detection seat is arranged in the water mixing cavity; an air bag is arranged in the detection seat; the upper push rod abuts against the top of the air bag. A lower push rod is arranged at the water outlet; a thermosensitive spring is arranged between the bottom of the lower push rod and the water mixing cavity; the lower push rod abuts against the bottom of the air bag. The hot water port is provided with a first filtering assembly; the cold water port is provided with a second filter assembly; a first cleaning assembly is arranged on one side of the air bag. A second cleaning assembly is arranged on one side of the air bag. When the outlet water temperature is higher than a set value, the second cleaning assembly automatically cleans the second filtering assembly of the cold water port, when the outlet water temperature is lower than the set value, the first cleaning assembly automatically cleans the first filtering assembly of the hot water port, and the outlet water temperature can be automatically corrected.

Description

Technical Field

[0001] The invention relates to the technical field of valves, and in particular to a high-performance constant-temperature water mixing valve for kitchens. Background Art

[0002] Traditional kitchen mixing valves have many disadvantages. On the one hand, it is difficult to accurately adjust the water temperature to the user's expectations, which brings great inconvenience to the user. On the other hand, after long-term use, the kitchen water pipes are prone to blockage due to accumulation of impurities, affecting the stability of water flow and water temperature. However, existing mixing valves generally lack effective blockage detection and automatic processing mechanisms. Users often need to spend a lot of time and energy to manually check and clean the pipes, which not only increases the user's cost of use, but may also cause damage to the kitchen water equipment, reducing the safety and convenience of kitchen water use. Summary of the invention

[0003] The purpose of the present invention is to provide a high-performance constant temperature water mixing valve for kitchens in view of the above-mentioned deficiencies in the prior art.

[0004] The object of the present invention is achieved through the following technical solutions: A high-performance thermostatic water mixing valve for kitchen, comprising a shell; a water mixing chamber is arranged in the shell; a hot water outlet is arranged at one end of the shell; a cold water outlet is arranged at the other end of the shell; a water outlet is arranged at the bottom of the shell; the water outlet is communicated with the water mixing chamber;

[0005] A thermostat is provided in the housing; a first water inlet and a second water inlet are provided through the thermostat; the hot water inlet and the cold water inlet are connected to the mixing water chamber through the first water inlet and the second water inlet respectively; an adjusting knob is provided on the top of the housing; the adjusting knob is connected to a thermostat component; and the thermostat component is connected to an upper push rod;

[0006] A detection seat is provided in the water mixing chamber; an air bag is provided in the detection seat; the bottom of the upper push rod protrudes into the top of the detection seat and abuts against the top of the air bag; a lower push rod is provided at the water outlet; a thermal spring is provided between the bottom of the lower push rod and the water mixing chamber; the top of the lower push rod protrudes into the bottom of the detection seat and abuts against the bottom of the air bag;

[0007] The hot water inlet is provided with a first filter component; the cold water inlet is provided with a second filter component; one side of the airbag is provided with a first cleaning component; and one side of the airbag is provided with a second cleaning component.

[0008] The present invention is further configured such that the temperature regulating seat comprises a fixed seat and a lifting seat telescopically arranged at the bottom of the fixed seat; the first water inlet and the second water inlet are respectively arranged at two ends of the lifting seat.

[0009] The present invention is further configured such that the first water inlet is arranged at the top of the second water inlet; the first water inlet is a regular trapezoidal structure; and the second water inlet is an inverted trapezoidal structure.

[0010] The present invention is further configured such that the temperature control component includes a nut arranged in the outer shell and a screw arranged in the outer shell; the nut is threadedly connected to the screw; the adjusting knob is fixedly connected to the nut; the lifting seat is fixedly connected to the screw; the top of the upper push rod is fixedly connected to the bottom of the screw.

[0011] The present invention is further configured such that the first filter assembly includes a first filter shell arranged at the hot water outlet; a first semicircular opening is penetrated through the top of the first filter shell; a first filter net is rotatably arranged inside the first filter shell; a first rotating shaft is arranged at the center of the first filter net; and the first filter net is exposed at the first semicircular opening.

[0012] The present invention is further configured such that the second filter assembly includes a second filter shell arranged at the cold water outlet; a second semicircular opening is penetrated through the bottom of the second filter shell; a second filter screen is rotatably arranged inside the second filter shell; a second rotating shaft is arranged at the center of the second filter screen; and the second filter screen is exposed at the second semicircular opening.

[0013] The present invention is further configured as follows: the first cleaning component includes a first linkage rod, a first lifting rod, a first friction rod and a first cleaning brush; a first driving rod is provided at one end of the airbag; one end of the first driving rod protrudes out of the detection seat and is slidably arranged at one end of the first linkage rod; a first guide groove is provided at the bottom of the first lifting rod; the first lifting rod is lifted and movably arranged in the outer shell; a return spring is provided between the bottom of the first lifting rod and the outer shell; the other end of the first linkage rod is lifted and movably arranged in the first guide groove; the top of the first linkage rod is connected to the first friction rod; the first friction rod protrudes into the first filter shell and abuts against the first rotating shaft; the first cleaning brush is arranged in the first filter shell; the first cleaning brush abuts against the circumferential surface of the first filter net; when the temperature of the water outlet is normal, the other end of the first linkage rod abuts against the bottom of the first guide groove.

[0014] The present invention is further configured as follows: the second cleaning assembly includes a second linkage rod, a second lifting rod, a second friction rod and a second cleaning brush; a second driving rod is provided at the other end of the airbag; one end of the second driving rod protrudes out of the detection seat and is slidably arranged at one end of the second linkage rod; a second guide groove is provided at the bottom of the second lifting rod; the second lifting rod is lifted and movably arranged in the outer shell; a reset spring is provided between the bottom of the second lifting rod and the outer shell; the other end of the second linkage rod is lifted and movably arranged in the second guide groove; the top of the second linkage rod is connected to the second friction rod; the second friction rod protrudes into the second filter shell and abuts against the second rotating shaft; the second cleaning brush is arranged in the second filter shell; the second cleaning brush abuts against the circumferential surface of the second filter; when the temperature of the water outlet is normal, the other end of the second linkage rod abuts against the top of the second guide groove.

[0015] The beneficial effects of the present invention are as follows: when the outlet water temperature is higher than the set value, the second filter component of the cold water outlet is automatically cleaned by the second cleaning component; when the outlet water temperature is lower than the set value, the first filter component of the hot water outlet is automatically cleaned by the first cleaning component, and the outlet water temperature can be automatically corrected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 is a cross-sectional view of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the temperature regulating seat of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the temperature regulating seat of the present invention from another perspective;

[0021] Figure 5 is a schematic structural diagram of the first filter assembly of the present invention;

[0022] Figure 6 is a cross-sectional view of a first filter assembly of the present invention;

[0023] Among them: 1. Shell; 11. Mixing chamber; 12. Hot water inlet; 13. Cold water inlet; 14. Water outlet; 21. Fixed seat; 22. Lifting seat; 23. First water inlet; 24. Second water inlet; 31. Adjusting knob; 32. Nut; 33. Screw; 34. Upper push rod; 4. Detection seat; 41. Air bag; 51. Lower push rod; 52. Thermosensitive spring; 6. First filter shell; 61. First semicircular opening; 62. First filter screen; 63. First rotating shaft; 7 , second filter shell; 71, second semicircular opening; 72, second filter screen; 73, second rotating shaft; 81, first linkage rod; 82, first lifting rod; 83, first friction rod; 84, first cleaning brush; 85, first guide groove; 86, reset spring; 87, first driving rod; 91, second linkage rod; 92, second lifting rod; 93, second friction rod; 94, second cleaning brush; 95, second guide groove; 96, reset spring; 97, second driving rod. DETAILED DESCRIPTION

[0024] The present invention is further described in conjunction with the following examples.

[0025] Depend on Figures 1 to 6It can be seen that the high-performance thermostatic water mixing valve for kitchen described in this embodiment includes a housing 1; a water mixing chamber 11 is provided in the housing 1; a hot water port 12 is provided at one end of the housing 1; a cold water port 13 is provided at the other end of the housing 1; a water outlet 14 is provided at the bottom of the housing 1; the water outlet 14 is communicated with the water mixing chamber 11;

[0026] A thermostat is provided in the housing 1; a first water inlet 23 and a second water inlet 24 are provided through the thermostat; the hot water inlet 12 and the cold water inlet 13 are connected to the mixing water chamber 11 through the first water inlet 23 and the second water inlet 24 respectively; an adjusting knob 31 is provided on the top of the housing 1; the adjusting knob 31 is connected to a thermostat assembly; and the thermostat assembly is connected to an upper push rod 34;

[0027] A detection seat 4 is provided in the water mixing chamber 11; an air bag 41 is provided in the detection seat 4; the bottom of the upper push rod 34 protrudes into the top of the detection seat 4 and abuts against the top of the air bag 41; a lower push rod 51 is provided at the water outlet 14; a thermal spring 52 is provided between the bottom of the lower push rod 51 and the water mixing chamber 11; the top of the lower push rod 51 protrudes into the bottom of the detection seat 4 and abuts against the bottom of the air bag 41;

[0028] The hot water inlet 12 is provided with a first filter assembly; the cold water inlet 13 is provided with a second filter assembly; one side of the airbag 41 is provided with a first cleaning assembly; one side of the airbag 41 is provided with a second cleaning assembly.

[0029] Specifically, when the high-performance constant temperature mixing valve for kitchen described in this embodiment is used, by turning the adjusting knob 31, the adjusting knob 31 adjusts the size of the first water inlet 23 and the second water inlet 24 through the temperature adjustment component, thereby adjusting the amount of hot water entering the hot water inlet 12 and the amount of cold water entering the cold water inlet 13. After the hot water and the cold water are mixed in the mixing chamber 11, the warm water is discharged from the water outlet 14, thereby realizing the adjustment of the outlet water temperature.

[0030] The adjustment knob 31 is provided with a scale temperature, and the scale temperature is positively correlated with the deformation of the thermosensitive spring 52, so as to ensure that the compression displacement of the airbag 41 caused by the lower push rod 51 is the same as the compression displacement of the airbag 41 caused by the upper push rod 34;

[0031] Taking the preset temperature of 50 as an example, by turning the adjusting knob 31 to the position where the scale temperature is 50 degrees, if the water outlet temperature of the water outlet 14 is 50 degrees, it means that there is no blockage in the first filter component and the second filter component. At this time, the compression displacement caused by the lower push rod 51 to the airbag 41 is the same as the compression displacement caused by the upper push rod 34 to the airbag 41, and the first cleaning component and the second cleaning component are not working;

[0032] If the outlet water temperature is 40 degrees, it means that the amount of hot water is insufficient and the first filter assembly of the hot water outlet 12 is clogged. Due to the decrease in the outlet water temperature, the extension amount of the thermal spring 52 is small. At this time, the compression displacement of the airbag 41 caused by the lower push rod 51 is greater than the compression displacement of the airbag 41 caused by the upper push rod 34, so the first filter assembly is cleaned by the first cleaning assembly;

[0033] If the outlet water temperature is 60 degrees, it means that the amount of cold water is insufficient and the second filter component of the cold water outlet 13 is blocked. Due to the increase in the outlet water temperature, the extension of the thermistor spring 52 is larger. At this time, the compression displacement of the airbag 41 caused by the lower push rod 51 is smaller than the compression displacement of the airbag 41 caused by the upper push rod 34, so the second filter component is cleaned by the second cleaning component.

[0034] In this embodiment, when the outlet water temperature is higher than the set value, the second filter component of the cold water outlet 13 is automatically cleaned by the second cleaning component. When the outlet water temperature is lower than the set value, the first filter component of the hot water outlet 12 is automatically cleaned by the first cleaning component, so that the outlet water temperature can be automatically corrected.

[0035] In the high-performance thermostatic water mixing valve for kitchens described in this embodiment, the temperature regulating seat comprises a fixed seat 21 and a lifting seat 22 which is telescopically arranged at the bottom of the fixed seat 21; the first water inlet 23 and the second water inlet 24 are respectively arranged at the two ends of the lifting seat 22. The above arrangement facilitates the adjustment of the opening size of the first water inlet 23 and the opening size of the second water inlet 24.

[0036] In the high-performance thermostatic water mixing valve for kitchens described in this embodiment, the first water inlet 23 is arranged at the top of the second water inlet 24; the first water inlet 23 is a regular trapezoidal structure; the second water inlet 24 is an inverted trapezoidal structure. Specifically, the above arrangement facilitates the adjustment of the opening size of the first water inlet 23 and the opening size of the second water inlet 24; when the height of the lifting seat 22 is high, most of the first water inlet 23 is received in the fixed seat 21, so that the opening of the first water inlet 23 is small and the opening of the second water inlet 24 is large; when the height of the lifting seat 22 is low, the first water inlet 23 extends from the fixed seat 21, so that the opening of the first water inlet 23 is large; and the second water inlet 24 is blocked by the baffle in the housing 1, so that the opening of the second water inlet 24 is small.

[0037] The high-performance thermostatic water mixing valve for kitchen described in this embodiment, the temperature adjustment component includes a nut 32 and a screw 33 provided in the housing 1; the nut 32 is threadedly connected to the screw 33; the adjusting knob 31 is fixedly connected to the nut 32; the lifting seat 22 is fixedly connected to the screw 33; the top of the upper push rod 34 is fixedly connected to the bottom of the screw 33. By rotating the adjusting knob 31, the nut 32 is rotated, and since the nut 32 is threadedly connected to the screw 33, the lifting seat 22, the screw 33 and the upper push rod 34 can be lifted and lowered; wherein the upper push rod 34 is connected with the detection seat 4 in a profile matching manner.

[0038] The embodiment of the present invention is a high-performance thermostatic mixing valve for kitchen use, wherein the first filter assembly comprises a first filter shell 6 disposed at the hot water outlet 12; a first semicircular opening 61 is penetrated through the top of the first filter shell 6; a first filter screen 62 is rotatably disposed inside the first filter shell 6; a first rotating shaft 63 is disposed at the center of the first filter screen 62; and the first filter screen 62 is exposed from the first semicircular opening 61. The high-performance thermostatic mixing valve for kitchen described in this embodiment, the first cleaning assembly includes a first linkage rod 81, a first lifting rod 82, a first friction rod 83 and a first cleaning brush 84; a first driving rod 87 is provided at one end of the airbag 41; one end of the first driving rod 87 protrudes out of the detection seat 4 and then slides on one end of the first linkage rod 81; a first guide groove 85 is provided at the bottom of the first lifting rod 82; the first lifting rod 82 is movable and arranged on the housing 1; a return spring 86 is provided between the bottom of the first lifting rod 82 and the housing 1; the other end of the first linkage rod 81 is movable and arranged in the first guide groove 85; the top of the first linkage rod 81 is connected to the first friction rod 83; the first friction rod 83 protrudes into the first filter shell 6 and abuts against the first rotating shaft 63; the first cleaning brush 84 is arranged in the first filter shell 6; the first cleaning brush 84 abuts against the circumferential surface of the first filter screen 62; when the temperature of the water outlet 14 is normal, the other end of the first linkage rod 81 abuts against the bottom of the first guide groove 85.

[0039] Specifically, when the outlet water temperature is lower than the set value, it indicates that the amount of hot water is insufficient, and the first filter screen 62 in the first semicircular opening 61 of the hot water outlet 12 is clogged. Due to the decrease in the outlet water temperature, the extension amount of the thermistor spring 52 is smaller. At this time, the compression displacement of the airbag 41 caused by the lower push rod 51 is greater than the compression displacement of the airbag 41 caused by the upper push rod 34, thereby causing the first driving rod 87 to move downward, and the first driving rod 87 drives the first linkage rod 81 and the first lifting rod 82 to move downward, thereby causing the first friction rod 83 to move downward. During the downward movement of the first friction rod 83, it drives the first rotating shaft 63 to rotate, that is, drives the entire first filter screen 62 to rotate. During the rotation of the first filter screen 62, the blocked part gradually rotates back into the first filter shell 6 and is cleaned by the first cleaning brush 84, and the unblocked part rotates to the first semicircular opening 61, thereby solving the blockage problem of the hot water outlet 12.

[0040] When the outlet water temperature is greater than the set value, it means that the amount of cold water is insufficient, and the second filter screen 72 in the first semicircular opening 61 of the cold water outlet 13 is blocked. Due to the increase in the outlet water temperature, the extension amount of the thermistor spring 52 is relatively large. At this time, the compression displacement of the airbag 41 caused by the lower push rod 51 is less than the compression displacement of the airbag 41 caused by the upper push rod 34, so that the first driving rod 87 moves upward, and the first driving rod 87 drives the first linkage rod 81 to move upward. During the upward movement of the first linkage rod 81, the first linkage rod 81 moves in the first guide groove 85 and does not drive the first lifting rod 82 to rise. In other words, there is no need to clean the first filter screen 62, thereby reducing the loss of the first filter screen 62.

[0041] The embodiment of the present invention is a high-performance thermostatic mixing valve for kitchen use, wherein the second filter assembly includes a second filter shell 7 disposed at the cold water inlet 13; a second semicircular opening 71 is penetrated through the bottom of the second filter shell 7; a second filter screen 72 is rotatably disposed inside the second filter shell 7; a second rotating shaft 73 is disposed at the center of the second filter screen 72; and the second filter screen 72 is exposed from the second semicircular opening 71. The embodiment of the present invention is a high-performance thermostatic mixing valve for kitchen use, wherein the second cleaning assembly comprises a second linkage rod 91, a second lifting rod 92, a second friction rod 93 and a second cleaning brush 94; a second driving rod 97 is provided at the other end of the airbag 41; one end of the second driving rod 97 protrudes out of the detection seat 4 and then slides on one end of the second linkage rod 91; a second guide groove 95 is provided at the bottom of the second lifting rod 92; the second lifting rod 92 is movable and arranged on the housing 1; a reset spring 96 is provided between the bottom of the second lifting rod 92 and the housing 1; the other end of the second linkage rod 91 is movable and arranged in the second guide groove 95; the top of the second linkage rod 91 is connected to the second friction rod 93; the second friction rod 93 protrudes into the second filter housing 7 and then abuts against the second rotating shaft 73; the second cleaning brush 94 is provided in the second filter housing 7; the second cleaning brush 94 abuts against the circumferential surface of the second filter screen 72; when the temperature of the water outlet 14 is normal, the other end of the second linkage rod 91 abuts against the top of the second guide groove 95.

[0042] Specifically, when the outlet water temperature is lower than the set value, it indicates that the amount of hot water is insufficient, and the first filter screen 62 in the first semicircular opening 61 of the hot water outlet 12 is clogged. Due to the decrease in the outlet water temperature, the extension amount of the thermistor spring 52 is smaller. At this time, the compression displacement of the airbag 41 caused by the lower push rod 51 is greater than the compression displacement of the airbag 41 caused by the upper push rod 34, thereby causing the second drive rod 97 to move downward, and the second drive rod 97 drives the second linkage rod 91 to move downward. During the downward movement of the second linkage rod 91, the second linkage rod 91 moves in the second guide groove 95 and does not drive the second lifting rod 92 to descend. In other words, there is no need to clean the second filter screen 72, thereby reducing the loss of the second filter screen 72.

[0043] When the outlet water temperature is greater than the set value, it means that the amount of cold water is insufficient, and the second filter screen 72 in the first semicircular opening 61 of the cold water outlet 13 is blocked. Due to the increase in the outlet water temperature, the extension amount of the thermistor spring 52 is relatively large. At this time, the compression displacement of the airbag 41 caused by the lower push rod 51 is less than the compression displacement of the airbag 41 caused by the upper push rod 34, so that the second driving rod 97 moves upward, and the second driving rod 97 drives the second linkage rod 91 and the second lifting rod 92 to move upward, so that the second friction rod 93 moves upward. In the process of the second friction rod 93 moving upward, it drives the second rotating shaft 73 to rotate, that is, drives the entire second filter screen 72 to rotate. In the process of the second filter screen 72 rotating, the blocked part gradually rotates back into the second filter shell 7 and is cleaned by the second cleaning brush 94, and the unblocked part rotates to the second semicircular opening 71, thereby solving the blockage problem of the cold water outlet 13.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A high-performance thermostatic water mixing valve for kitchen, characterized by: It comprises a shell; a water mixing chamber is arranged in the shell; a hot water outlet is arranged at one end of the shell; a cold water outlet is arranged at the other end of the shell; a water outlet is arranged at the bottom of the shell; and the water outlet is communicated with the water mixing chamber; A thermostat is provided in the housing; a first water inlet and a second water inlet are provided through the thermostat; the hot water inlet and the cold water inlet are connected to the mixing water chamber through the first water inlet and the second water inlet respectively; an adjusting knob is provided on the top of the housing; the adjusting knob is connected to a thermostat component; and the thermostat component is connected to an upper push rod; A detection seat is provided in the water mixing chamber; an air bag is provided in the detection seat; the bottom of the upper push rod protrudes into the top of the detection seat and abuts against the top of the air bag; a lower push rod is provided at the water outlet; a thermal spring is provided between the bottom of the lower push rod and the water mixing chamber; the top of the lower push rod protrudes into the bottom of the detection seat and abuts against the bottom of the air bag; The hot water inlet is provided with a first filter component; the cold water inlet is provided with a second filter component; one side of the airbag is provided with a first cleaning component; and one side of the airbag is provided with a second cleaning component.

2. A high-performance thermostatic water mixing valve for kitchen use according to claim 1, characterized in that: The temperature regulating seat comprises a fixed seat and a lifting seat which is telescopically arranged at the bottom of the fixed seat; the first water inlet and the second water inlet are respectively arranged at two ends of the lifting seat.

3. A high-performance constant temperature mixing valve for kitchen use according to claim 2, characterized in that: The first water inlet is arranged at the top of the second water inlet; the first water inlet is a regular trapezoidal structure; the second water inlet is an inverted trapezoidal structure.

4. A high-performance constant temperature mixing valve for kitchen use according to claim 2, characterized in that: The temperature control component includes a nut and a screw arranged in the shell; the nut is threadedly connected to the screw; the adjustment knob is fixedly connected to the nut; the lifting seat is fixedly connected to the screw; the top of the upper push rod is fixedly connected to the bottom of the screw.

5. A high-performance constant temperature mixing valve for kitchen use according to claim 3, characterized in that: The first filter assembly includes a first filter shell arranged at the hot water outlet; a first semicircular opening is penetrated through the top of the first filter shell; a first filter net is rotatably arranged in the first filter shell; a first rotating shaft is arranged at the center of the first filter net; and the first filter net is exposed in the first semicircular opening.

6. A high-performance thermostatic water mixing valve for kitchen use according to claim 3, characterized in that: The second filter assembly includes a second filter shell arranged at the cold water outlet; a second semicircular opening is penetrated through the bottom of the second filter shell; a second filter screen is rotatably arranged in the second filter shell; a second rotating shaft is arranged at the center of the second filter screen; and the second filter screen is exposed at the second semicircular opening.

7. A high-performance constant temperature mixing valve for kitchen use according to claim 5, characterized in that: The first cleaning assembly includes a first linkage rod, a first lifting rod, a first friction rod and a first cleaning brush; a first driving rod is provided at one end of the airbag; one end of the first driving rod protrudes out of the detection seat and is slidably arranged on one end of the first linkage rod; a first guide groove is provided at the bottom of the first lifting rod; the first lifting rod is lifted and movably arranged in the outer shell; a return spring is provided between the bottom of the first lifting rod and the outer shell; the other end of the first linkage rod is lifted and movably arranged in the first guide groove; the top of the first linkage rod is connected to the first friction rod; the first friction rod protrudes into the first filter shell and abuts against the first rotating shaft; the first cleaning brush is arranged in the first filter shell; the first cleaning brush abuts against the circumferential surface of the first filter; when the temperature of the water outlet is normal, the other end of the first linkage rod abuts against the bottom of the first guide groove.

8. A high-performance constant temperature mixing valve for kitchen use according to claim 6, characterized in that: The second cleaning assembly includes a second linkage rod, a second lifting rod, a second friction rod and a second cleaning brush; a second driving rod is provided at the other end of the airbag; one end of the second driving rod protrudes out of the detection seat and is slidably arranged on one end of the second linkage rod; a second guide groove is provided at the bottom of the second lifting rod; the second lifting rod is lifted and movably arranged on the outer shell; a reset spring is provided between the bottom of the second lifting rod and the outer shell; the other end of the second linkage rod is lifted and movably arranged in the second guide groove; the top of the second linkage rod is connected to the second friction rod; the second friction rod protrudes into the second filter shell and abuts against the second rotating shaft; the second cleaning brush is arranged in the second filter shell; the second cleaning brush abuts against the circumferential surface of the second filter; when the temperature of the water outlet is normal, the other end of the second linkage rod abuts against the top of the second guide groove.

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