A push-button constant temperature faucet

Abstract

The present invention discloses a push-button thermostatic faucet, which comprises a faucet body, a thermostatic valve core and a push-button valve core; the faucet body is integrally injection molded; the faucet body is provided with a communicated thermostatic valve groove, a hot water waterway, a hot water interface, a cold water waterway, a cold water interface, a water outlet waterway, a push-button valve groove and a water outlet interface; a thermostatic valve core is installed in the thermostatic valve groove, and a push-button valve core is installed in each push-button valve groove. The faucet body of the present invention is integrally injection molded, so that the faucet body has the advantages of low cost, high strength and easy manufacturing.

Description

Technical Field

[0001] The present invention relates to the field of faucets, and particularly to a push-button thermostatic faucet. Background Art

[0002] A push-button thermostatic faucet is a faucet that adjusts the temperature through a thermostatic valve core and controls the water outlet through a push-button valve core. The faucet body of the existing push-button thermostatic faucet has two types: copper material and plastic material. Among them, the faucet body made of copper material has a high cost, and the faucet body made of plastic material mainly has the following two structures.

[0003] For the first type of plastic faucet body, the waterway adopts a split waterway design, that is, the plastic faucet body is split into two parts, injection molded separately and then assembled. One part of the faucet body is used to install the thermostatic valve core, and the other part of the faucet body is used to install the push-button valve core; the first type of plastic faucet body has problems of complex assembly, low strength, and easy leakage at the connection.

[0004] For the second type of plastic faucet body, the required waterway is processed by mechanical drilling; the second type of plastic faucet body needs to use high-cost special engineering plastics (such as HT, etc.) for mechanical processing, and cracks may occur after mechanical processing of the special engineering plastics. Summary of the Invention

[0005] The purpose of the present invention is to provide a push-button thermostatic faucet, the faucet body of which has the advantages of low cost, high strength, and easy manufacturing.

[0006] To achieve the above object, the solution of the present invention is:

[0007] A push-button thermostatic faucet, which comprises a faucet body, a thermostatic valve core and a push-button valve core; the faucet body is integrally injection molded; the faucet body is provided with a thermostatic valve groove, a hot water channel, a hot water interface, a cold water channel, a cold water interface, a water outlet channel, a push-button valve groove and a water outlet interface; the side wall of the thermostatic valve groove is provided with a hot water inlet, a cold water inlet and a mixing water outlet, the hot water inlet is communicated with the hot water interface through the hot water channel, and the cold water inlet is communicated with the cold water interface through the cold water channel; a thermostatic valve core is installed in the thermostatic valve groove, and the hot water port, the cold water port and the mixing water port of the thermostatic valve core are respectively communicated with the hot water inlet, the cold water inlet and the mixing water outlet of the thermostatic valve groove; the water outlet channel intersects with the thermostatic valve groove, the first end of the water outlet channel is communicated with the mixing water outlet of the thermostatic valve groove, the second end of the water outlet channel forms a first core-pulling port, and the first core-pulling port is closed by a first cover; the number of the push-button valve grooves is at least two, and each push-button valve groove intersects with the water outlet channel; an inlet and an outlet are formed in each push-button valve groove, the inlet of each push-button valve groove intersects and communicates with the water outlet channel, the inlet of each push-button valve groove intersects and communicates with a water outlet interface, and the water outlet interface intersects with both the water outlet channel and the push-button valve groove; a push-button valve core is installed in each push-button valve groove, and the inlet and the outlet of the push-button valve core are respectively communicated with the inlet and the outlet of the push-button valve groove.

[0008] The hot water channel includes a first hot water channel, a second hot water channel and a third hot water channel; the first end of the first hot water channel forms a second core-pulling port, the second end of the first hot water channel intersects and communicates with the second hot water channel, and the hot water interface intersects and communicates with the first hot water channel; the second hot water channel is arranged in parallel with the thermostatic valve groove, one end of the second hot water channel forms a third core-pulling port, the third hot water channel intersects with the second hot water channel, the first end of the third hot water channel penetrates through the side wall of the second hot water channel, and the first end of the third hot water channel also penetrates through the side wall of the thermostatic valve groove so that the side wall of the thermostatic valve groove forms the hot water inlet, the second end of the third hot water channel forms a fourth core-pulling port, and the second core-pulling port, the third core-pulling port and the fourth core-pulling port are respectively closed by a second cover, a third cover and a fourth cover; the cold water channel includes a first cold water channel and a second cold water channel, the first end of the first cold water channel is opposite to and communicated with the cold water interface, the cold water interface is arranged in the same direction as the hot water interface, the second end of the first cold water channel intersects and communicates with the second cold water channel, the first end of the second cold water channel is opposite to and communicated with the cold water inlet of the thermostatic valve groove, and the second end of the second cold water channel forms a fifth core-pulling port, and the fifth core-pulling port is closed by a fifth cover.

[0009] A hot water buffer assembly is fitted in the second core-pulling port; a cold water buffer assembly is fitted in the fifth core-pulling port.

[0010] The first hot water channel is arranged in parallel with the water outlet channel, and the first hot water channel and the water outlet channel are on the same side of the faucet body.

[0011] An installation seat is fitted in the constant temperature valve groove. The installation seat divides the constant temperature valve groove into a main valve groove and an auxiliary valve cavity. The side wall of the main valve groove is provided with the hot water inlet, the cold water inlet and the mixed water outlet, and the constant temperature valve core is installed in the main valve groove; the second end of the first hot water waterway intersects and communicates with the second hot water waterway through the auxiliary valve cavity.

[0012] An installation seat is fitted in the constant temperature valve groove, and the constant temperature valve core is installed in the installation seat; a separated annular cold water passing cavity and an annular hot water passing cavity are formed between the outer wall of the installation seat and the inner wall of the constant temperature valve groove. The annular cold water passing cavity and the annular hot water passing cavity are respectively communicated with the hot water inlet and the cold water inlet. The side wall of the installation seat is provided with a plurality of hot water passing openings communicating the annular hot water passing cavity and the hot water ports of the constant temperature valve core, and the side wall of the installation seat is provided with a plurality of cold water passing openings communicating the annular cold water passing cavity and the cold water ports of the constant temperature valve core.

[0013] The constant temperature valve groove is arranged in the same direction as each key valve groove.

[0014] The faucet body is further provided with a water passing waterway. The first end of the water outlet waterway is communicated with the mixed water outlet of the constant temperature valve groove through the water passing waterway; the water passing waterway includes a first water passing waterway and a second water passing waterway; the first water passing waterway is arranged in parallel and offset with the water outlet waterway. The first end of the first water passing waterway is oppositely communicated with the mixed water outlet of the constant temperature valve groove. The second end of the first water passing waterway forms a sixth core pulling opening, and the sixth core pulling opening is closed by a sixth cover. The second water passing waterway intersects and communicates with the first water passing waterway and the water outlet waterway. The end of the second water passing waterway is provided with a seventh core pulling hole, and the seventh core pulling hole is closed by a seventh cover.

[0015] The first water passing waterway and the water outlet waterway are on the same side of the faucet body.

[0016] The cross section of the water outlet waterway is in a "D" shape.

[0017] After adopting the above scheme, the present invention has the following characteristics.

[0018] 1. By setting the positions and structures of the constant temperature valve groove, the hot water waterway, the hot water interface, the cold water waterway, the cold water interface, the water outlet waterway, the key valve groove and the water outlet interface of the faucet body, the faucet body can be integrally injection molded, so that the faucet body has the advantages of low cost, high strength and easy manufacturing.

[0019] 2. By setting the hot water buffer assembly, the cold water buffer assembly and the water outlet buffer assembly, the faucet body can be effectively prevented from being frozen and cracked or generating water hammer phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention Figure 1 ;

[0021] Figure 2 Structural schematic of the present invention Figure 2 ;

[0022] Figure 3 Structural decomposition of the present invention Figure 1 ;

[0023] Figure 4 Structural decomposition of the present invention Figure 2 ;

[0024] Figure 5 Cross-section of the present invention Figure 1 ;

[0025] Figure 6 Cross-section of the present invention Figure 2 ;

[0026] Figure 7 Cross-section of the present invention Figure 3 ;

[0027] Figure 8 Cross-section of the present invention Figure 4 ;

[0028] Figure 9 Cross-section of the present invention Figure 5 ;

[0029] Figure 10 Cross-section of the present invention Figure 6 ;

[0030] Label description:

[0031] Faucet body 1, thermostatic valve groove 11, main valve groove 111, hot water inlet 1111, cold water inlet 1112, mixed water outlet 1113, auxiliary valve cavity 112, retaining edge 113, hot water waterway 12, first hot water waterway 121, second core-pulling port 1211, second hot water waterway 122, third core-pulling port 1221, third hot water waterway 123, fourth core-pulling port 1231, hot water interface 13, cold water waterway 14, first cold water waterway 141, second cold water waterway 142, fifth core-pulling port 1421, cold water interface 15, water outlet waterway 16, first core-pulling port 161, key valve groove 17, water inlet 171, water outlet 172, water outlet interface 18, water passing waterway 19, first water passing waterway 191, sixth core-pulling port 1911, second water passing waterway 192, seventh core-pulling hole 1921,

[0032] Thermostatic valve core 2,

[0033] Key valve core 3,

[0034] Hot water buffer assembly 4, hot water buffer pad 41, hot water buffer spring 42,

[0035] Cold water buffer assembly 5, cold water buffer pad 51, cold water buffer spring 52,

[0036] Mounting seat 6, hot water inlet 61, cold water inlet 62, mixing chamber 63, mixing water passage 64,

[0037] Valve cover 7,

[0038] Outlet buffer assembly 8, outlet buffer pad 81, outlet buffer spring 82,

[0039] One-way valve core 9,

[0040] First cover a, second cover b, third cover c, fourth cover d, fifth cover e, sixth cover f, seventh cover g, hot water connector h, cold water connector i, annular cold water passage S2, annular hot water passage S1. Detailed implementation mode

[0041] In order to further explain the technical solution of the present invention, the present invention will be elaborated in detail through specific embodiments below.

[0042] As Figures 1 to 10 shown, the present invention discloses a push-button constant temperature faucet, which includes a faucet body 1, a constant temperature valve core 2 and a push-button valve core 3; wherein, the faucet body 1 is integrally injection-molded; the faucet body 1 is provided with a constant temperature valve groove 11, a hot water channel 12, a hot water interface 13, a cold water channel 14, a cold water interface 15, an outlet channel 16, a push-button valve groove 17 and an outlet interface 18, and the constant temperature valve groove 11 is used for installing the constant temperature valve core 2, and the push-button valve groove 17 is used for installing the push-button valve core 3; the constant temperature valve core 2 and the push-button valve core 3 are both prior arts and will not be elaborated herein.

[0043] In the present invention, the side wall of the constant temperature valve groove 11 is provided with a hot water inlet 1111, a cold water inlet 1112 and a mixed water outlet 1113. The hot water inlet 111 is communicated with the hot water interface 13 through the hot water channel 12, and the cold water inlet 1112 is communicated with the cold water interface 15 through the cold water channel 14. A constant temperature valve core 2 is installed in the constant temperature valve groove 11, and the hot water port, the cold water port and the mixed water port of the constant temperature valve core 2 are respectively communicated with the hot water inlet 1111, the cold water inlet 1112 and the mixed water outlet 1113 of the constant temperature valve groove 11. The water outlet channel 16 intersects with the constant temperature valve groove 3. The first end of the water outlet channel 16 is communicated with the mixed water outlet 1113 of the constant temperature valve groove 11, and the second end of the water outlet channel 16 forms a first core-pulling port 161 for core-pulling when the water outlet channel 16 is molded. The first core-pulling port 161 is closed by a first cover a to prevent the water outlet channel 16 from leaking water. The number of the key valve grooves 17 is at least two, and each key valve groove 17 intersects with the water outlet channel 16. An inlet 171 and an outlet 172 are formed in each key valve groove 17. The inlet 171 of each key valve groove 17 intersects and communicates with the water outlet channel 16, the inlet 171 of each key valve groove 17 intersects and communicates with a water outlet interface 18, and the water outlet interface 18 intersects with both the water outlet channel 16 and the key valve groove 17. A key valve core 3 is installed in each key valve groove 17, and the inlet and the outlet of the key valve core 3 are respectively communicated with the inlet 171 and the outlet 172 of the key valve groove 17. Among them, the water outlet channel 16 intersects with the constant temperature valve groove 3 and one end of the water outlet channel 16 is provided with the first core-pulling port 161, and the key valve groove 17 intersects with the water outlet channel 16 and the water outlet interface 18, so that it is convenient to perform core-pulling for the water outlet channel 16, the key valve groove 17 and the water outlet interface 18 during injection molding, and the faucet body 1 can be integrally injection-molded.

[0044] In the present invention, the hot water channel 12 includes a first hot water channel 121, a second hot water channel 122, and a third hot water channel 123; a first end of the first hot water channel 121 forms a second core-pulling port 1211 for core-pulling when the first hot water channel 121 is injection-molded, a second end of the first hot water channel 121 intersects and communicates with the second hot water channel 122, and the hot water interface 13 intersects and communicates with the first hot water channel 121; the second hot water channel 122 is arranged in parallel with the thermostat valve groove 11, one end of the second hot water channel 122 forms a third core-pulling port 1221 for core-pulling when the second hot water channel 122 is injection-molded, the third hot water channel 123 intersects with the second hot water channel 122, a first end of the third hot water channel 123 penetrates through the side wall of the second hot water channel 122, and the first end of the third hot water channel 123 further penetrates through the side wall of the thermostat valve groove 11 so that the side wall of the thermostat valve groove 11 forms the hot water inlet 1111, a second end of the third hot water channel 123 forms a fourth core-pulling port 1231 for core-pulling when the third hot water channel 123 is injection-molded, and the second core-pulling port 1211, the third core-pulling port 1221, and the fourth core-pulling port 1231 are respectively closed by a second cover b, a third cover c, and a fourth cover d to prevent the first hot water channel 121, the second hot water channel 122, and the third hot water channel 123 from leaking; the cold water channel 14 includes a first cold water channel 141 and a second cold water channel 142, a first end of the first cold water channel 141 faces and communicates with the cold water interface 15 for core-pulling when the first cold water channel 141 and the cold water interface 15 are injection-molded, the cold water interface 15 is arranged in the same direction as the hot water interface 13, a second end of the first cold water channel 142 intersects and communicates with the second cold water channel 143, a first end of the second cold water channel 142 faces and communicates with the cold water inlet 1113 of the thermostat valve groove 11, a second end of the second cold water channel 142 forms a fifth core-pulling port 1421 for core-pulling when the second cold water channel 142 is injection-molded, and the fifth core-pulling port 1421 is closed by a fifth cover e to prevent the second cold water channel 142 from leaking; through the foregoing arrangement, the present invention can facilitate the setting of the distance between the hot water interface 13 and the cold water interface 15 so that the distance between the hot water interface 13 and the cold water interface 15 meets the legal standard. Among them, the first hot water channel 121 can be arranged in parallel with the water outlet channel 16, and the first hot water channel 121 and the water outlet channel 16 are on the same side of the faucet body 1; with such an arrangement, it helps to reduce the structural compactness of the faucet body 1 and thus reduce the volume of the faucet body 1.

[0045] In the present invention, a hot water buffer assembly 4 may be fitted inside the second core-pulling port 1211. The hot water buffer assembly 4 can act correspondingly with the change of the internal pressure of the hot water channel 12, so as to avoid excessive internal pressure in the hot water channel 12, and further prevent the hot water channel 12 of the faucet body 1 from cracking due to freezing or generating a water hammer phenomenon. The hot water buffer assembly 4 may include a hot water buffer pad 41 and a hot water buffer spring 42. The hot water buffer pad 41 is movably fitted inside the second core-pulling port 1211 and is in movable sealing cooperation with the second core-pulling port 1211. Two ends of the hot water buffer spring 42 respectively abut against the hot water buffer pad 41 and the second cover b. Similarly, a cold water buffer assembly 5 may be fitted inside the fifth core-pulling port 1421. The cold water buffer assembly 5 can act correspondingly with the change of the internal pressure of the cold water channel 14, so as to avoid excessive internal pressure in the cold water channel 14, and further prevent the cold water channel 12 of the faucet body 1 from cracking due to freezing or generating a water hammer phenomenon. The cold water buffer assembly 5 may include a cold water buffer pad 51 and a cold water buffer spring 52. The cold water buffer pad 51 is movably fitted inside the fifth core-pulling port 1421 and is in movable sealing cooperation with the fifth core-pulling port 1421. Two ends of the cold water buffer spring 52 respectively abut against the cold water buffer pad 51 and the fifth cover e.

[0046] In the present invention, check valves 9 may be respectively fitted to the hot water interface 13 and the cold water interface 15, so as to avoid the phenomenon of cold and hot water mixing in the hot water pipe and the cold water pipe respectively connected to the hot water interface 13 and the cold water interface 15. Specifically, the hot water interface 13 and the cold water interface 15 may be respectively connected to a hot water joint h and a cold water joint i, and check valves 9 are provided inside both the hot water joint h and the cold water joint i.

[0047] In the present invention, a mounting seat 6 is fitted inside the constant temperature valve groove 11. The mounting seat 6 divides the constant temperature valve groove 11 into a main valve groove 111 and a secondary valve cavity 112. The side wall of the main valve groove 111 is provided with the hot water inlet 1111, the cold water inlet 1112 and the mixed water outlet 1113, and the constant temperature valve core 2 is installed in the main valve groove 111. The second end of the first hot water channel 121 intersects and communicates with the second hot water channel 122 through the secondary valve cavity 112. With such a setting in the present invention, it can help to shorten the length of the first hot water channel 121, so as to prevent the core for forming the first hot water channel 121 from being too long and easily bent and damaged. In addition, with such a setting in the present invention, the core for forming the first hot water channel 121 and the core for forming the constant temperature valve groove 11 can be inserted into each other, improving the stability of the core. Among them, a retaining edge 113 abutting against the mounting seat 6 may be provided on the inner wall of the constant temperature valve groove 11 to ensure that the mounting seat 6 can divide the constant temperature valve groove 11 into the main valve groove 111 and the secondary valve cavity 112.

[0048] In the present invention, the constant temperature valve core 11 can be specifically installed in the mounting seat 6; a separated annular cold water passage chamber S2 and an annular hot water passage chamber S1 are formed between the outer wall of the mounting seat 6 and the inner wall of the constant temperature valve groove 11. The annular cold water passage chamber S2 and the annular hot water passage chamber S1 are respectively communicated with the hot water inlet 1111 and the cold water inlet 1112 of the constant temperature valve groove 11. A plurality of hot water outlets 61 communicating the annular hot water passage chamber S1 and the hot water ports of the constant temperature valve core 2 are provided on the side wall of the mounting seat 6 so that the hot water ports of the constant temperature valve core 2 are communicated with the hot water inlet 1111, and a plurality of cold water outlets 62 communicating the annular cold water passage chamber S2 and the cold water ports of the constant temperature valve core 2 are provided on the side wall of the mounting seat 6 so that the cold water ports of the constant temperature valve core 2 are communicated with the cold water inlet 1112; the foregoing arrangement in the present invention helps to increase the water inlet flow rates of the hot water inlet and the cold water inlet of the constant temperature valve core 2. A mixing chamber 63 communicating with the mixing port of the constant temperature valve core 2 can be formed inside the mounting seat 6, and a mixing opening 64 communicating the mixing chamber 63 and the mixing outlet 1113 of the constant temperature valve groove 11 is provided on the side wall of the mounting seat 6 so that the mixing port of the constant temperature valve core 2 is communicated with the mixing outlet 1113 of the constant temperature valve groove 11. The opening of the constant temperature valve groove 11 can be fitted with a valve cover 7, and the valve cover 7 presses the constant temperature valve core 2 to prevent the constant temperature valve core 2 from coming out.

[0049] In the present invention, the constant temperature valve groove 11 is arranged in the same direction as each key valve groove 17, so that the constant temperature valve core 2 and each key valve core 3 can be arranged in the same direction, thereby facilitating people to operate the constant temperature valve core 2 and each key valve core 3; the water outlet interfaces 18 communicated with each key valve groove 17 can be arranged in the same direction entirely or partially.

[0050] In the present invention, the faucet body 1 may further be provided with a water passage 19. The first end of the water outlet passage 16 is communicated with the water mixing outlet 1113 of the thermostatic valve groove 11 through the water passage 19, which is convenient for setting the position of the water outlet passage 16. Furthermore, the thermostatic valve groove 11 and each key valve groove 17 can be arranged on the same plane. Specifically, the water passage 19 includes a first water passage 191 and a second water passage 192. The first water passage 191 is arranged in parallel and offset with the water outlet passage 16. The first end of the first water passage 191 is relatively communicated with the water mixing outlet 1113 of the thermostatic valve groove 11. The second end of the first water passage 191 forms a sixth core-pulling port 1911 for core-pulling when the first water passage 191 is injection-molded. The sixth core-pulling port 1911 is closed by a sixth cover f to prevent the first water passage 191 from leaking. The second water passage 192 intersects and communicates with the first water passage 191 and the water outlet passage. A seventh core-pulling hole 1921 is provided at the end of the second water passage 192 for core-pulling when the second water passage 192 is injection-molded. The seventh core-pulling hole 1921 is closed by a seventh cover g to prevent the second water passage 192 from leaking. The first water passage 191 and the water outlet passage 16 can be on the same side of the faucet body 1, which helps to reduce the structural compactness of the faucet body 1 and thus reduce the volume of the faucet body 1. It should be noted that the present invention is not limited to the first end of the water outlet passage 16 being communicated with the water mixing outlet 1113 of the thermostatic valve groove 11 through the water passage 19. The first end of the water outlet passage 16 can also be directly relatively communicated with the water mixing outlet 1113 of the thermostatic valve groove 11.

[0051] In the present invention, a water outlet buffer assembly 8 may be fitted in the sixth core-pulling port 1911. The water outlet buffer assembly 8 can act accordingly with the change of the internal pressure of the water outlet passage 16 and the water passage 19, so as to avoid excessive internal pressure of the water outlet passage 16 and the water passage 19, and further prevent the water outlet passage 16 and the water passage 19 of the faucet body 1 from cracking due to freezing or generating a water hammer phenomenon. The water outlet buffer assembly 8 may include a water outlet buffer pad 81 and a water outlet buffer spring 82. The water outlet buffer pad 81 is movably fitted in the sixth core-pulling port 1911 and is movably and sealingly fitted with the sixth core-pulling port 1911. The two ends of the water outlet buffer spring 82 respectively abut against the water outlet buffer pad 81 and the sixth cover f.

[0052] In the present invention, the cross-section of the water outlet passage 16 may be in a "D" shape. Such a setting can make the mold core for forming the water outlet passage 16 and the mold core for forming the key valve groove 17 form a surface contact, improving the stability during the injection molding of the faucet body 1.

[0053] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by those of ordinary skill in the technical field to which it belongs shall be regarded as not departing from the patent scope of the present invention.

Claims

1. A push-button constant temperature faucet, characterized in that: It includes a faucet body, a thermostatic valve core and a button valve core; The faucet body is integrally injection-molded; the faucet body is provided with a thermostatic valve groove, a hot water channel, a hot water interface, a cold water channel, a cold water interface, a water outlet channel, a button valve groove and a water outlet interface; The side wall of the thermostatic valve groove is provided with a hot water inlet, a cold water inlet and a mixing water outlet. The hot water inlet is communicated with the hot water interface through the hot water channel, and the cold water inlet is communicated with the cold water interface through the cold water channel; a thermostatic valve core is installed in the thermostatic valve groove, and the hot water port, cold water port and mixing water port of the thermostatic valve core are respectively communicated with the hot water inlet, cold water inlet and mixing water outlet of the thermostatic valve groove; The water outlet channel intersects with the thermostatic valve groove. The first end of the water outlet channel is communicated with the mixing water outlet of the thermostatic valve groove, and the second end of the water outlet channel forms a first core-pulling port, and the first core-pulling port is closed by a first cover; The number of the button valve grooves is at least two, and each button valve groove intersects with the water outlet channel; an inlet and an outlet are formed in each button valve groove. The inlet of each button valve groove intersects and communicates with the water outlet channel, the inlet of each button valve groove intersects and communicates with a water outlet interface, and the water outlet interface intersects with both the water outlet channel and the button valve groove; a button valve core is installed in each button valve groove, and the inlet and outlet of the button valve core are respectively communicated with the inlet and outlet of the button valve groove; An installation seat is fitted in the thermostatic valve groove, and the thermostatic valve core is installed in the installation seat; a separated annular cold water passing cavity and an annular hot water passing cavity are formed between the outer wall of the installation seat and the inner wall of the thermostatic valve groove. The annular cold water passing cavity and the annular hot water passing cavity are respectively communicated with the hot water inlet and the cold water inlet. A plurality of hot water passing openings communicating the annular hot water passing cavity and the hot water port of the thermostatic valve core are provided on the side wall of the installation seat, and a plurality of cold water passing openings communicating the annular cold water passing cavity and the cold water port of the thermostatic valve core are provided on the side wall of the installation seat.

2. The key temperature control faucet according to claim 1, characterized in that: The hot water channel includes a first hot water channel, a second hot water channel and a third hot water channel; the first end of the first hot water channel forms a second core-pulling port, the second end of the first hot water channel intersects and communicates with the second hot water channel, and the hot water interface intersects and communicates with the first hot water channel; the second hot water channel is arranged parallel to the thermostatic valve groove. One end of the second hot water channel forms a third core-pulling port. The third hot water channel intersects with the second hot water channel. The first end of the third hot water channel penetrates through the side wall of the second hot water channel, and the first end of the third hot water channel also penetrates through the side wall of the thermostatic valve groove so that the side wall of the thermostatic valve groove forms the hot water inlet. The second end of the third hot water channel forms a fourth core-pulling port. The second core-pulling port, the third core-pulling port and the fourth core-pulling port are respectively closed by a second cover, a third cover and a fourth cover; The cold water channel includes a first cold water channel and a second cold water channel. The first end of the first cold water channel is opposite to and communicated with the cold water interface. The cold water interface is arranged in the same direction as the hot water interface. The second end of the first cold water channel intersects and communicates with the second cold water channel. The first end of the second cold water channel is opposite to and communicated with the cold water inlet of the thermostatic valve groove. The second end of the second cold water channel forms a fifth core-pulling port, and the fifth core-pulling port is closed by a fifth cover.

3. The key-operated constant temperature faucet according to claim 2, characterized in that: A hot water buffer assembly is fitted inside the second core-pulling port; a cold water buffer assembly is fitted inside the fifth core-pulling port.

4. The key-operated constant temperature faucet according to claim 2, characterized in that: The first hot water waterway is arranged parallel to the water outlet waterway, and the first hot water waterway and the water outlet waterway are on the same side of the faucet body.

5. The key constant temperature faucet according to claim 2, characterized in that: A mounting seat is fitted inside the constant temperature valve groove. The mounting seat divides the constant temperature valve groove into a main valve groove and an auxiliary valve cavity. The side wall of the main valve groove is provided with the hot water inlet, the cold water inlet and the mixed water outlet. The constant temperature valve core is installed in the main valve groove. The second end of the first hot water waterway intersects and communicates with the second hot water waterway through the auxiliary valve cavity.

6. The key-operated constant-temperature faucet according to claim 1, characterized in that: The constant temperature valve groove is arranged in the same direction as each key valve groove.

7. The key-operated constant-temperature faucet according to claim 6, wherein: The faucet body is further provided with a water passing waterway. The first end of the water outlet waterway is communicated with the mixed water outlet of the constant temperature valve groove through the water passing waterway. The water passing waterway includes a first water passing waterway and a second water passing waterway; the first water passing waterway is arranged parallel and offset to the water outlet waterway. The first end of the first water passing waterway is relatively communicated with the mixed water outlet of the constant temperature valve groove. The second end of the first water passing waterway forms a sixth core-pulling port, and the sixth core-pulling port is closed by a sixth cover. The second water passing waterway intersects and communicates with the first water passing waterway and the water outlet waterway. A seventh core-pulling hole is provided at the end of the second water passing waterway, and the seventh core-pulling hole is closed by a seventh cover.

8. The push-button constant temperature faucet according to claim 7, characterized in that: The first water passing waterway and the water outlet waterway are on the same side of the faucet body.

9. A push-button constant temperature faucet according to claim 1 or 7 or 8, characterized in that: The cross-section of the water outlet waterway is in a "D" shape.

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