Concealed faucet

Abstract

The embodiment of the utility model provides a concealed faucet, and relates to the field of bathroom pipe fittings. The concealed faucet comprises an embedded box, a water inlet connector, a connecting assembly, a cold and hot water mixing valve, a valve shell and a water outlet pipe. The water inlet connector is arranged in the embedded box, and a first hot water runner and a first cold water runner are arranged in the water inlet connector; the connecting assembly comprises a hot water connecting pipe and a cold water connecting pipe, one end of the hot water connecting pipe is inserted into the first hot water runner, and the other end communicates with the cold and hot water mixing valve; one end of the cold water connecting pipe is inserted into the cold water runner, and the other end is communicated with the cold-hot water mixing valve; the cold and hot water mixing valve is installed on the valve shell and communicated with the valve shell through a water mixing channel. The water outlet pipe communicates with the valve shell. The concealed faucet is convenient to maintain, and the concealed installation occupies a small wall area.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bathroom pipe technology field, specifically, relates to a concealed faucet. BACKGROUND

[0002] The concealed faucet is arranged in the cement wall body, and the faucet and the handle of the faucet are exposed outside the wall body in a split type.

[0003] The existing concealed faucet is complex to install, and affects the installation time, in the process of decoration, the water pipe needs to be buried in the wall body, and the water pipe needs to have a connecting part exposed outside the wall body, the faucet is directly connected with the connecting part of the water pipe in the process of installing the faucet, so that the pre-buried space is increased, and it is extremely inconvenient in the aspect of later maintenance. In addition, the existing concealed faucet needs to cut off the whole water source to prevent water leakage caused by water flow during maintenance, but it is very troublesome to cut off the whole water source, and the maintenance efficiency is affected.

[0004] In view of this, the utility model is provided. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a concealed faucet, and aims to improve at least one problem mentioned in the background art.

[0006] The embodiment of the utility model can be realized as follows:

[0007] In the first aspect, the utility model provides a concealed faucet, which comprises a pre-buried box, a water inlet connecting body, a connecting assembly, a cold and hot water mixing valve, a valve shell and a water outlet pipe;

[0008] The water inlet connecting body is arranged in the pre-buried box, and the water inlet connecting body is provided with a first hot water flow channel and a first cold water flow channel;

[0009] The connecting assembly comprises a hot water connecting pipe and a cold water connecting pipe, one end of the hot water connecting pipe is inserted into the first hot water flow channel, and the other end is communicated with the cold and hot water mixing valve; one end of the cold water connecting pipe is inserted into the cold water flow channel, and the other end is communicated with the cold and hot water mixing valve;

[0010] The cold and hot water mixing valve is installed on the valve shell, and the two are communicated through a water mixing channel;

[0011] The water outlet pipe is communicated with the valve shell.

[0012] In the optional implementation, the connecting assembly further comprises a connecting cover and a connecting bolt;

[0013] The connecting cover has a mounting table, one end of the valve shell away from the water outlet pipe is a mounting end, the mounting table is arranged in the mounting end, and the outer wall of the mounting table is in interference fit with the inner wall of the mounting end.

[0014] The connecting bolt passes through the mounting table and the embedded box to connect the connecting cover with the water inlet connecting body.

[0015] In an optional embodiment, the cold-hot water mixing valve comprises a valve body, a valve core assembly, and a handle assembly;

[0016] The valve body is mounted on the valve shell, and a second hot water flow channel, a second cold water flow channel, and a mixed water passage are arranged in one end of the valve body. A hot water connecting pipe is inserted into the second hot water flow channel, and a cold water connecting pipe is inserted into the second cold water flow channel.

[0017] A mounting cavity is formed in the middle part of the valve body, and the valve core assembly is arranged in the mounting cavity. The second hot water flow channel, the second cold water flow channel, and the mixed water passage are all in communication with the mounting cavity. The other end of the valve body is provided with the handle assembly, and the handle assembly is connected with the valve core assembly.

[0018] The cold-hot water mixing valve is configured such that by operating the handle assembly, the valve core assembly can be moved towards the handle assembly. The hot water and cold water flowing into the second hot water flow channel and the second cold water flow channel will be mixed in the mounting cavity, then enter the valve shell through the mixed water passage, and finally be discharged from the water outlet pipe.

[0019] In an optional embodiment, the outer wall of the hot water connecting pipe at opposite ends is provided with a first sealing groove, and a first sealing ring is arranged in the first sealing groove.

[0020] And / or, the outer wall of the cold water connecting pipe at opposite ends is provided with a second sealing groove, and a second sealing ring is arranged in the second sealing groove.

[0021] In an optional embodiment, a plurality of first sealing grooves are arranged on the outer wall of the hot water connecting pipe in the hot water flow channel, and a first sealing ring is arranged in each first sealing groove.

[0022] And / or, a plurality of first sealing grooves are arranged on the outer wall of the cold water connecting pipe in the cold water flow channel, and a first sealing ring is arranged in each first sealing groove.

[0023] In an optional embodiment, a pipe connecting piece is further included, one end of the pipe connecting piece is clamped in the valve shell, and the other end is arranged in the water outlet pipe.

[0024] In an optional embodiment, the pipe connecting piece comprises a connecting short pipe, a buckle, and a fixing bolt.

[0025] The outer wall of the connecting short pipe is provided with a mounting groove, the buckle is arranged outside the mounting groove, the outer wall of the water outlet pipe is provided with a screw through hole, the buckle is provided with a screw hole, and the fixing bolt passes through the screw through hole and is connected to the screw hole.

[0026] In an optional embodiment, the end of the water outlet pipe away from the valve shell is bent, and the concealed faucet is installed according to the bending direction of the water outlet pipe downward, and the hot and cold water mixing valve is located at the side of the valve shell.

[0027] In an optional embodiment, the end of the water outlet pipe away from the valve shell is bent, and the concealed faucet is installed according to the bending direction of the water outlet pipe downward, and the hot and cold water mixing valve is located at the side of the valve shell.

[0028] In an optional embodiment, the outer wall of the water inlet connecting body is provided with a hot water pipe joint and a cold water pipe joint;

[0029] The hot water pipe joint and the cold water pipe joint protrude from the embedded box, the hot water pipe joint is in communication with the first hot water flow channel, and the cold water pipe joint is in communication with the first cold water flow channel.

[0030] The beneficial effects of the concealed faucet provided in the embodiments of the present application include:

[0031] The concealed faucet provided in the present application sets the embedded box, and integrates the drain pipe and the hot and cold water mixing valve on the valve shell, so that the maintenance can be carried out only by disassembling the parts outside the wall, thereby saving the maintenance cost; since the drain pipe and the hot and cold water mixing valve are integrated on the valve shell, only the embedded box is embedded in the wall, and the embedded box only needs to provide the cold water flow channel and the hot water flow channel, so that the volume can be made smaller and the wall area is smaller. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as limiting the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0033] Figure 1 The structure schematic view of the concealed faucet provided in the present embodiment under the first visual angle;

[0034] Figure 2 The exploded view of the concealed faucet provided in the present embodiment;

[0035] Figure 3 The structure schematic view of the concealed faucet provided in the present embodiment under the second visual angle;

[0036] Figure 4 The structure schematic view of the concealed faucet provided in the present embodiment under the third visual angle; Figure 3 The sectional view at D-D;

[0037] Figure 5 The structure schematic view of the concealed faucet provided in the present embodiment under the third visual angle;

[0038] Figure 6 The structure schematic view of the concealed faucet provided in the present embodiment under the third visual angle;Figure 5 a sectional view at F-F;

[0039] Figure 7 is a sectional view of the valve body assembly; Figure 5 a sectional view at K-K;

[0040] Figure 8 is a sectional view of the valve body assembly;

[0041] Figure 9 is a structural schematic diagram of the moving core;

[0042] Figure 10 is a structural schematic diagram of the valve disc;

[0043] Figure 11 is a structural schematic diagram of the valve disc stacked on the moving core when viewed from above in the non-water-out state;

[0044] Figure 12 is a structural schematic diagram of the valve disc stacked on the moving core when viewed from above in the water-out state;

[0045] Figure 13 is a structural schematic diagram of the valve disc stacked on the moving core when viewed from above in the water-out state after adjusting the hot and cold water ratio;

[0046] Figure 14 is a matching structure diagram of the fixed cap and the valve core shell.

[0047] Icon: 100 - concealed faucet; 110 - pre-embedded box; 120 - water inlet connector; 121 - first hot water flow channel; 122 - first cold water flow channel; 123 - hot water pipe joint; 124 - cold water pipe joint; 131 - hot water connecting pipe; 132 - cold water connecting pipe; 133 - connecting bolt; 134 - connecting cover; 135 - mounting platform; 136 - first sealing groove; 137 - first sealing ring; 138 - second sealing groove; 139 - second sealing ring; 140 - hot and cold water mixing valve; 141 - valve body; 142 - valve core assembly; 143 - handle assembly; 144 - second hot water flow channel; 145 - second cold water flow channel; 146 - mixed water passage; 147 - mounting cavity; 150 - valve shell; 151 - mounting end; 160 - water outlet pipe; 161 - grid type water outlet nozzle; 170 - pipe connector; 171 - connecting short pipe; 172 - buckle; 173 - fixing bolt; 181 - valve core shell; 181a - large diameter part; 181b - small diameter part; 181c - rotation limiting part; 181d - insertion slot; 181e - buckling slot; 182 - valve rod; 183 - mounting sleeve; 183a - sleeve; 183b - limiting fitting part; 183c - pin; 184 - moving core; 184a - mounting hole; 184b - mixed water groove; 185 - valve sheet; 185a - cold water through hole; 185b - hot water through hole; 185c - mixed water through hole; 185d - fixed notch; 186 - fixed cap; 186a - first insertion pin; 186b - second insertion pin; 186c - clamping pin; 186d - barb. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0050] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0051] In the description of the utility model, it needs to be explained that if the terms such as ''up'', ''down'', ''inner'', ''outer'' and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, or the orientation or positional relationship of the utility model product when being used commonly, it is only for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore it cannot be understood as a limitation on the utility model.

[0052] In addition, if the terms ''first'', ''second'' and the like are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0053] It needs to be explained that the features in the embodiments of the utility model can be combined with each other without conflict.

[0054] Please refer to Figures 1-7 The utility model embodiment provides a kind of concealed faucet 100, it includes pre-buried box 110, water inlet connecting body 120, connecting assembly, cold and hot water mixing valve 140, valve shell 150 and water outlet pipe 160;

[0055] Water inlet connecting body 120 is set in pre-buried box 110, and first hot water channel 121 and first cold water channel 122 are set in water inlet connecting body 120;

[0056] Connecting assembly includes hot water connecting pipe 131 and cold water connecting pipe 132, one end of hot water connecting pipe 131 is inserted into first hot water channel 121, and the other end is communicated with cold and hot water mixing valve 140;One end of cold water connecting pipe 132 is inserted into cold water channel, and the other end is communicated with cold and hot water mixing valve 140;

[0057] Cold and hot water mixing valve 140 is installed on valve shell 150, and they are communicated by water mixing passage 146;

[0058] Water outlet pipe 160 is communicated with valve shell 150.

[0059] The concealed faucet 100 provided by the utility model embodiment, when installing, pre-buried box 110 is buried in the interior of wall, and cold water pipeline and hot water pipeline are communicated with the cold water channel and hot water channel of water inlet connecting body 120 respectively, when working, hot water and cold water are respectively from first hot water channel 121, first cold water channel 122 respectively into cold and hot water mixing valve 140 through hot water connecting pipe 131 and cold water connecting pipe 132, by controlling the opening and closing or opening degree of cold and hot water mixing valve 140, cold and hot mixed water is discharged from water outlet pipe 160.

[0060] The concealed faucet 100 provided by the utility model, by setting the embedded box 110, and integrating the drain pipe and the hot and cold water mixing valve 140 on the valve shell 150, only the components outside the wall need to be disassembled for maintenance, thereby saving maintenance cost; since the drain pipe and the hot and cold water mixing valve 140 are integrated on the valve shell 150, only the embedded box 110 is embedded in the wall, the embedded box 110 only needs to provide cold water flow channels and hot water flow channels, the volume thereof can be made smaller, and the wall area occupied is smaller.

[0061] Further, the outer wall of the water inlet connecting body 120 is provided with a hot water pipe joint 123 and a cold water pipe joint 124; the hot water pipe joint 123 and the cold water pipe joint 124 extend out of the embedded box 110, the hot water pipe joint 123 is in communication with the first hot water flow channel 121, and the cold water pipe joint 124 is in communication with the first cold water flow channel 122. The hot water pipe embedded in the wall is connected with the hot water pipe joint 123, and the cold water pipe is connected with the cold water pipe joint 124.

[0062] Further, the connecting assembly further comprises a connecting cover 134 and a connecting bolt 133;

[0063] The connecting cover 134 has a mounting table 135, one end of the valve shell 150 away from the water outlet pipe 160 is a mounting end 151, the mounting table 135 is arranged in the mounting end 151, and the outer wall of the mounting table 135 is in interference fit with the inner wall of the mounting end 151;

[0064] The connecting bolt 133 connects the connecting cover 134 and the water inlet connecting body 120 by penetrating the mounting table 135 and the embedded box 110.

[0065] During installation, the connecting cover 134 and the water inlet connecting body 120 are fixed through the connecting bolt 133, then the hot water connecting pipe 131 and the cold water connecting pipe 132 are respectively inserted into the first hot water flow channel 121 and the first cold water flow channel 122 by penetrating the connecting cover 134 and the embedded box 110, and then the mounting table 135 of the connecting cover 134 is clamped into the mounting end 151. The connecting assembly makes the connection of the valve shell 150 and the embedded box 110 more convenient.

[0066] Further, the outer walls of opposite ends of the hot water connecting pipe 131 are both provided with first sealing grooves 136, and the first sealing grooves 136 are both provided with first sealing rings 137.

[0067] Further, the outer walls of opposite ends of the hot water connecting pipe 131 are both provided with first sealing grooves 136, and the first sealing grooves 136 are both provided with first sealing rings 137.

[0068] Further, the outer walls of opposite ends of the cold water connecting pipe 132 are both provided with second sealing grooves 138, and the second sealing grooves 138 are both provided with second sealing rings 139.

[0069] Furthermore, a plurality of first sealing grooves 136 are provided on the outer wall of the cold water connection pipe 132 located in the cold water flow channel, and a first sealing ring 137 is fitted in each first sealing groove 136.

[0070] The provision of the first sealing groove 136 and the first sealing ring 137, as well as the provision of the second sealing groove 138 and the second sealing ring, ensures the sealing performance of the connection between the water inlet connector 120 and the valve housing 150.

[0071] Furthermore, the hot and cold water mixing valve 140 includes a valve body 141, a valve core assembly 142, and a handle assembly 143;

[0072] The valve body 141 is installed on the valve housing 150. A second hot water flow channel 144, a second cold water flow channel 145 and a mixing water channel 146 are provided in one end of the valve body 141. The hot water connection pipe 131 is inserted into the second hot water flow channel 144 and the cold water connection pipe 132 is inserted into the second cold water flow channel 145.

[0073] A mounting cavity 147 is provided in the middle of the valve body 141, and the valve core assembly 142 is disposed in the mounting cavity 147. The second hot water flow channel 144, the second cold water flow channel 145 and the mixing channel 146 are all connected to the mounting cavity 147. A handle assembly 143 is provided at the other end of the valve body 141, and the handle assembly 143 is connected to the valve core assembly 142.

[0074] The hot and cold water mixing valve 140 is configured such that by operating the handle assembly 143, the valve core assembly 142 can be moved toward the handle assembly 143, and the hot water and cold water flowing into the second hot water channel 144 and the second cold water channel 145 will be mixed in the mounting cavity 147, and then enter the valve body 150 through the mixing channel 146, and finally be discharged from the outlet pipe 160.

[0075] The handle assembly 143 includes a handle, which can be turned to adjust the ratio of hot and cold water, and can be pulled to open the valve.

[0076] The specific structure of the valve core assembly 142 and handle assembly 143 of the hot and cold water mixing valve 140 can be implemented using currently disclosed prior art. Specifically, in this application, it can be:

[0077] like Figures 8 to 14 As shown, the valve core assembly 142 includes a valve core housing 181, a valve stem 182, a mounting sleeve 183, a movable core 184, a valve plate 185, and a fixing cap 186.

[0078] The valve core shell 181 includes a large diameter part 181a and a small diameter part 181b in communication, a step surface is formed at the junction of the large diameter part 181a and the small diameter part 181b, and a rotation limiting piece 181c is arranged on the step surface; the mounting sleeve 183 includes a sleeve 183a and a limiting fitting piece 183b arranged on the outer periphery of one end of the sleeve 183a, the valve rod 182 penetrates into the sleeve 183a and is connected with the sleeve 183a through a pin 183c, so that the valve rod 182 can rotate within a certain angle range in the sleeve 183a; the sleeve 183a is located in the small diameter part 181b, the limiting fitting piece 183b is hung on the step surface, the valve rod 182 is rotated with the length direction of the valve rod 182 as the rotation shaft, the valve rod 182 drives the mounting sleeve 183 to rotate, the rotation limiting piece 181c is arranged on the step surface to limit the limiting fitting piece 183b, so that the rotation angle of the mounting sleeve 183 is within a certain range; the moving core 184 and the valve disc 185 are arranged in the large diameter part 181a, the moving core 184 is arranged close to the mounting sleeve 183, one side of the moving core 184 close to the mounting sleeve 183 is provided with a mounting hole 184a, and the other side is provided with a mixed water groove 184b, one end of the valve rod 182 protruding out of the mounting sleeve 183 is inserted into the mounting hole 184a, when the valve rod 182 is rotated with the length direction of the valve rod 182 as the rotation shaft, the valve rod 182 drives the moving core 184 to rotate, when the valve rod 182 is rotated with the pin as the rotation shaft, the valve rod 182 can drive the moving core 184 to slide on the end surface of the mounting sleeve 183; the valve disc 185 is provided with two long arc-shaped holes, which are a cold water through hole 185a and a hot water through hole 185b, and is also provided with a mixed water through hole 185c, the two long arc-shaped holes are symmetrically arranged with the center line of the mixed water through hole 185c as the symmetry axis; the position of the valve disc 185 is fixed, when the valve rod 182 is in the original position, the mixed water groove 184b only communicates with the mixed water through hole 185c and does not communicate with the cold water through hole 185a and the hot water through hole 185b, so that the faucet does not discharge water, when the valve rod 182 is rotated, the valve rod 182 controls the moving core 184 to slide, at this time, the cold water through hole 185a, the hot water through hole 185b and the mixed water through hole 185c all communicate with the mixed water groove 184b, the water entering from the second hot water flow channel 144 and the second cold water flow channel 145 respectively passes through the hot water through hole 185b and the cold water through hole 185a into the mixed water groove 184b to be mixed uniformly, and then is discharged from the mixed water through hole 185c into the mixed water passage 146; when the valve rod 182 is rotated, the sizes of the cold water through hole 185a and the hot water through hole 185b communicating with the mixed water groove 184b change, the mixing ratio of the cold water and the hot water changes, and the water temperature adjustment is realized.The fixed cap 186 is provided with three water passing holes respectively communicating with the cold water through hole 185a, the hot water through hole 185b and the mixed water through hole 185c, which respectively communicate with the second hot water flow channel 144, the second cold water flow channel 145 and the mixed water passage 146; the fixed cap 186 is provided with a plurality of first pins 186a, a plurality of second pins 186b and a plurality of clamping feet 186c, the outer side of the end of each clamping foot 186c is provided with a barb 186d, the large diameter part 181a of the valve core shell 181 is provided with a plurality of insertion slots 181d at the edge of the end away from the small diameter part 181b, a plurality of buckle grooves 181e are provided near the edge, the end of the valve disc 185 is provided with a plurality of fixed notches 185d, when the fixed cap 186 is installed on the valve core shell 181, the plurality of first pins 186a are inserted one by one into the plurality of insertion slots 181d, the barbs 186d of the plurality of clamping feet 186c are buckled one by one in the plurality of buckle grooves 181e, and the plurality of second pins 186b are inserted one by one into the plurality of fixed notches 185d, so that the fixed cap 186 can be fixed on the valve core shell 181, and the valve disc 185 can be fixed. Sealing rings or sealing cement can be provided between parts to achieve sealing. The valve stem 182 and the handle assembly 143 are communicated, and the valve stem 182 is rotated or moved by controlling the handle assembly 143.

[0079] Optionally, the concealed faucet 100 further comprises a connecting piece 170, one end of the connecting piece 170 is clamped in the valve shell 150, and the other end is arranged in the water outlet pipe 160. The valve shell 150 and the water outlet pipe 160 are communicated through the connecting piece 170.

[0080] Further, the connecting piece 170 comprises a connecting short pipe 171, a buckle 172 and a fixing bolt 173.

[0081] The outer wall of the connecting short pipe 171 is provided with a mounting groove, the buckle 172 is sleeved outside the mounting groove, the outer wall of the water outlet pipe 160 is provided with a screw through hole, the buckle 172 is provided with a screw hole, and the fixing bolt 173 passes through the screw through hole and is connected to the screw hole.

[0082] Specifically, the buckle 172 is a discontinuous ring, and has a notch, so that the buckle 172 can be buckled on the outer wall of the connecting short pipe 171.

[0083] Through the specific arrangement of the connecting piece 170, stable connection between the connecting piece 170 and the water outlet pipe 160 can be achieved.

[0084] Optionally, the end of the water outlet pipe 160 away from the valve shell 150 is bent, when the concealed faucet 100 is installed, the concealed faucet 100 is installed according to the bending direction of the water outlet pipe 160 downward, and the cold and hot water mixing valve 140 is located at the side of the valve shell 150. Further, after the concealed faucet 100 is installed, when a person faces the faucet, the cold and hot water mixing valve 140 corresponds to the right hand of the person, and the water outlet pipe 160 discharges water downward.

[0085] Further, the end of the water outlet pipe 160 away from the valve shell 150 is a water outlet, and the water outlet is provided with a grid type water outlet nozzle 161.

[0086] The grid type water outlet nozzle 161 can divide the water flow into multiple streams.

[0087] The above is only a specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A concealed faucet, characterized by, The utility model provides a cold and hot water mixing valve and a water supply system thereof, and belongs to the technical field of water supply system. The water inlet connector is arranged in the pre-embedded box, and the water inlet connector is provided with a first hot water flow channel and a first cold water flow channel. The connecting assembly comprises a hot water connecting pipe and a cold water connecting pipe, one end of the hot water connecting pipe is inserted into the first hot water flow channel, and the other end is in communication with the cold and hot water mixing valve; one end of the cold water connecting pipe is inserted into the cold water flow channel, and the other end is in communication with the cold and hot water mixing valve. The cold and hot water mixing valve is installed on the valve shell and is in communication with the valve shell through a mixed water channel. The water outlet pipe is in communication with the valve shell.

2. The recessed faucet of claim 1, wherein The connecting assembly further comprises a connecting cover and a connecting bolt. The connecting cover has a mounting table, one end of the valve shell away from the water outlet pipe is a mounting end, the mounting table is arranged in the mounting end, and the outer wall of the mounting table is in interference fit with the inner wall of the mounting end. The connecting bolt passes through the mounting table and the pre-embedded box to connect the connecting cover and the water inlet connector.

3. The recessed faucet of claim 1, wherein The cold and hot water mixing valve comprises a valve body, a valve core assembly, and a handle assembly. One end of the valve body is provided with a second hot water flow channel, a second cold water flow channel, and the mixed water channel, the hot water connecting pipe is inserted into the second hot water flow channel, and the cold water connecting pipe is inserted into the second cold water flow channel. The valve body is provided with an installation cavity in the middle part, the valve core assembly is arranged in the installation cavity, the second hot water flow channel, the second cold water flow channel, and the mixed water channel are in communication with the installation cavity; the other end of the valve body is provided with the handle assembly, and the handle assembly is connected with the valve core assembly. The cold and hot water mixing valve is configured to: by controlling the handle assembly, the valve core assembly can be moved towards the handle assembly, the hot water and cold water flowing into the second hot water flow channel and the second cold water flow channel will be mixed in the installation cavity, then enter the valve shell through the mixed water channel, and finally be discharged from the water outlet pipe.

4. The recessed faucet of claim 1, wherein The outer wall of the opposite ends of the hot water connecting pipe is provided with a first sealing groove, and the first sealing groove is sleeved with a first sealing ring. And / or, the outer wall of the opposite ends of the cold water connecting pipe is provided with a second sealing groove, and the second sealing groove is sleeved with a second sealing ring.

5. The recessed faucet of claim 4, wherein The outer wall of the hot water connecting pipe in the hot water flow channel is provided with a plurality of first sealing grooves, and each first sealing groove is sleeved with a first sealing ring. And / or, the outer wall of the cold water connecting pipe in the cold water flow channel is provided with a plurality of first sealing grooves, and each first sealing groove is sleeved with a first sealing ring.

6. The recessed faucet of claim 1, wherein The connecting assembly further comprises a connecting cover and a connecting bolt.

7. The recessed faucet of claim 6, wherein The connecting cover has a mounting table, one end of the valve shell away from the water outlet pipe is a mounting end, the mounting table is arranged in the mounting end, and the outer wall of the mounting table is in interference fit with the inner wall of the mounting end. The connecting bolt passes through the mounting table and the pre-embedded box to connect the connecting cover and the water inlet connector. The cold and hot water mixing valve comprises a valve body, a valve core assembly, and a handle assembly. One end of the valve body is provided with a second hot water flow channel, a second cold water flow channel, and the mixed water channel, the hot water connecting pipe is inserted into the second hot water flow channel, and the cold water connecting pipe is inserted into the second cold water flow channel. The valve body is provided with an installation cavity in the middle part, the valve core assembly is arranged in the installation cavity, the second hot water flow channel, the second cold water flow channel, and the mixed water channel are in communication with the installation cavity; the other end of the valve body is provided with the handle assembly, and the handle assembly is connected with the valve core assembly. The cold and hot water mixing valve is configured to: by controlling the handle assembly, the valve core assembly can be moved towards the handle assembly, the hot water and cold water flowing into the second hot water flow channel and the second cold water flow channel will be mixed in the installation cavity, then enter the valve shell through the mixed water channel, and finally be discharged from the water outlet pipe. The outer wall of the opposite ends of the hot water connecting pipe is provided with a first sealing groove, and the first sealing groove is sleeved with a first sealing ring. And / or, the outer wall of the opposite ends of the cold water connecting pipe is provided with a second sealing groove, and the second sealing groove is sleeved with a second sealing ring. The outer wall of the hot water connecting pipe in the hot water flow channel is provided with a plurality of first sealing grooves, and each first sealing groove is sleeved with a first sealing ring. And / or, the outer wall of the cold water connecting pipe in the cold water flow channel is provided with a plurality of first sealing grooves, and each first sealing groove is sleeved with a first sealing ring. The connecting assembly further comprises a connecting cover and a connecting bolt. The connecting cover has a mounting table, one end of the valve shell away from the water outlet pipe is a mounting end, the mounting table is arranged in the mounting end, and the outer wall of the mounting table is in interference fit with the inner wall of the mounting end. The connecting bolt passes through the mounting table and the pre-embedded box to connect the connecting cover and the water inlet connector. The cold and hot water mixing valve comprises a valve body, a valve core assembly, and a handle assembly. One end of the valve body is provided with a second hot water flow channel, a second cold water flow channel, and the mixed water channel, the hot water connecting pipe is inserted into the second hot water flow channel, and the cold water connecting pipe is inserted into the second cold water flow channel. The valve body is provided with an installation cavity in the middle part, the valve core assembly is arranged in the installation cavity, the second hot water flow channel, the second cold water flow channel, and the mixed water channel are in communication with the installation cavity; the other end of the valve body is provided with the handle assembly, and the handle assembly is connected with the valve core assembly. The cold and hot water mixing valve is configured to: by controlling the handle assembly, the valve core assembly can be moved towards the handle assembly, the hot water and cold water flowing into the second hot water flow channel and the second cold water flow channel will be mixed in the installation cavity, then enter the valve shell through the mixed water channel, and finally be discharged from the water outlet pipe. The outer wall of the opposite ends of the hot water connecting pipe is provided with a first sealing groove, and the first sealing groove is sleeved with a first sealing ring. And / or, the outer wall of the opposite ends of the cold water connecting pipe is provided with a second sealing groove, and the second sealing groove is sleeved with a second sealing ring. The outer wall of the hot water connecting pipe in the hot water flow channel is provided with a plurality of first sealing grooves, and each first sealing groove is sleeved with a first sealing ring. And / or, the outer wall of the cold water connecting pipe in the cold water flow channel is provided with a plurality of first sealing grooves, and each first sealing groove is sleeved with a first sealing ring. The connecting assembly further comprises a connecting cover and a connecting bolt. The connecting cover has a mounting table, one end of the valve shell away from the water outlet pipe is a mounting end, the mounting table is arranged in the mounting end, and the outer wall of the mounting table is in interference fit with the inner wall of the mounting end. The connecting bolt passes through the mounting table and the pre-embedded box to connect the connecting cover and the water inlet connector. The cold and hot water mixing valve comprises a valve body, a valve core assembly, and a handle assembly. One end of the valve body is provided with a second hot water flow channel, a second cold water flow channel, and the mixed water channel, the hot water connecting pipe is inserted into the second hot water flow channel, and the cold water connecting pipe is inserted into the second cold water flow channel. The valve body is provided with an installation cavity in the middle part, the valve core assembly is arranged in the installation cavity, the second hot water flow channel, the second cold water flow channel, and the mixed water channel are in communication with the installation cavity; the other end of the valve body is provided with the handle assembly, and the handle assembly is connected with the valve core assembly. The cold and hot water mixing valve is configured to: by controlling the handle assembly, the valve core assembly can be moved towards the handle assembly, the hot water and cold water flowing into the second hot water flow channel and the second cold water flow channel will be mixed in the installation cavity, then enter the valve shell through the mixed water channel, and finally be discharged from the water outlet pipe. The outer wall of the opposite ends of the hot water connecting pipe is provided with a first sealing groove, and the first sealing groove is sleeved with a first sealing ring. And / or, the outer wall of the opposite ends of the cold water connecting pipe is provided with a second sealing groove, and the second 8. The recessed faucet of claim 1, wherein The end of the water outlet pipe away from the valve shell is bent, the concealed faucet is installed according to the bending direction of the water outlet pipe downwards, and the hot and cold water mixing valve is located at the side of the valve shell.

9. The recessed faucet of claim 8, wherein The end of the water outlet pipe away from the valve shell is a water outlet, and the water outlet is provided with a grid type water outlet nozzle.

10. The recessed faucet of claim 1, wherein The outer wall of the water inlet connecting body is provided with a hot water pipe joint and a cold water pipe joint; The hot water pipe joint and the cold water pipe joint protrude from the pre-buried box, the hot water pipe joint is in communication with the first hot water flow channel, and the cold water pipe joint is in communication with the first cold water flow channel.

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