Shower faucet

Abstract

A combined anti-scald bath and shower faucet or mixing tap having a modular plastic internal structure 1 providing plastic internal fluid passageways 2, 3, 12, 13, within a metal external shell 41 hav

Description

[0001] The present application relates to the field of sanitary ware, and in particular to a shower faucet.

[0002] The faucet shell is generally made of zinc alloy, which can effectively reduce production costs while retaining the metal texture of the faucet appearance. However, metal materials have a relatively strong thermal conductivity. When a metal faucet is used generally, hot water is prone to transfer heat energy to the faucet surface, causing the risk of scalding. Therefore, in the industry, some structures are often designed to avoid external heat conduction, but the structure of the shower faucet is originally relatively complex, and in order to further design to avoid external scalding, the shower faucet structure will be further designed. However, some design structures are unstable, the heat insulation effect is not good, and the structure is complex and easy to damage.

[0003] A first aspect of the present application is to provide a shower faucet which has a simple structure, is easy to assemble and has a good heat insulation effect.

[0004] A second aspect of the present application is to further provide a shower faucet that can realize the switching between two different waterways.

[0005] To achieve the first aspect of the present application, a shower faucet is disclosed in the resent application, which includes a plastic water flow core, two flow regulating valve cores, two handles, two water inlet tube pieces, a metal shell, and a bottom plate;

[0006] the plastic water flow core comprises a left water inlet valve body, a right water inlet valve body, a water mixing valve body, and a water outlet tube designed as separated bodies, the water mixing valve body has a hollow inner cavity and extends to the left to form a first water flow connecting port, to the right to form a second water flow connecting port, and to the front to form a third water flow connecting port, and in a central portion of the inner cavity of the water mixing valve body, a water mixing cavity for communicating with the first water flow connecting port, the second water flow connecting port and the third water flow connecting port is formed; the left water inlet valve body is provided with a first water inlet cavity extending in a vertical direction, and the first water inlet cavity extends towards the first water flow connecting port to form a first transverse water inlet tube; the right water inlet valve body is provided with a second water inlet cavity extending in the vertical direction, and the second water inlet cavity extends towards the second water flow connecting port to form a second transverse water inlet tube, the first water flow connecting port, the second water flow connecting port and the third water flow connecting port of the water mixing valve body are connected to the first transverse water inlet tube, the second transverse water inlet tube and the water outlet tube respectively to form the plastic water flow core, and the water outlet tube is provided with a water outlet nozzle extending downward at an end at a distance from the third water flow connecting port;

[0007] the metal shell has a transverse cavity for housing the left water inlet valve body, the right water inlet valve body and the water mixing valve body, and a longitudinal cavity for housing the water outlet tube; the transverse cavity has valve core holes at positions corresponding to the first water inlet cavity and the second water inlet cavity respectively, and the transverse cavity and the longitudinal cavity construct together a T-shaped cavity of the metal shell;

[0008] the two water inlet tube pieces are fixedly connected to a lower part of the left water inlet valve body and a lower part of the right water inlet valve body respectively;

[0009] the bottom plate comprises a transverse bottom plate and a longitudinal bottom plate, and the transverse bottom plate and the longitudinal bottom plate are designed as separated bodies or an integral body, and the transverse bottom plate is provided with a first through hole at a position corresponding to each of the two water inlet tube pieces, the longitudinal bottom plate is provided with a second through hole at a position corresponding to the water outlet nozzle of the water outlet tube, and when the plastic water flow core equipped with the water inlet tube pieces is disposed into the T-shaped cavity of the metal shell, the two first through holes of the transverse bottom plate are sleeved on the two water inlet tube pieces and fixedly arranged below the transverse cavity, to fix the left water inlet valve body, the right water inlet valve body and the water mixing valve body; the second through hole of the longitudinal bottom plate is sleeved on the water outlet nozzle of the water outlet tube and fixedly arranged below the longitudinal cavity to fix the water outlet tube;

[0010] the flow regulating valve cores with two handles are respectively fixed in the left first water inlet cavity and the right second water inlet cavity through the two first through holes of the transverse bottom plate; and

[0011] water flows into the flow regulating valve core in the first water inlet cavity of the left water inlet valve body from one of the two water inlet tube pieces, and flows into the water mixing cavity through the first transverse water inlet tube and the first water flow connecting port; and water flows into the flow regulating valve core in the second water inlet cavity of the right water inlet valve body from the other one of the two water inlet tube pieces, and flows into the water mixing cavity through the second transverse water inlet tube and the second water flow connecting port, thereby achieving water mixing, and then flows out from the water outlet nozzle through the water outlet tube

[0012] The above structure is adopted, and the plastic water flow core is designed as a separated body and built into a metal shell, which can effectively reduce the manufacturing cost of the plastic water flow core, while retaining the metal texture of the faucet appearance. In the above structure, a heat insulation cavity is formed between the plastic water flow core and the metal shell, which can ensure that the shower faucet shell is heat-insulated and scald-proof, and improve the safety of the shower faucet.

[0013] To achieve the second aspect of the present application, a shower faucet is further disclosed in the resent application, the water mixing valve body forms an annular flange with an opening at an upper part of the water mixing cavity, the annular flange is higher than the first water flow connecting port and the second water flow connecting port, at least part of the third water flow connecting port is located in front of the annular flange, and a bottom of the water mixing valve body forms a sunken accommodating cavity at a position corresponding to the annular flange;

[0014] the metal shell is provided with a switching valve hole at a position corresponding to the annular flange;

[0015] the shower faucet further comprises a pull-up waterway switching valve, and the pull-up waterway switching valve comprises a water outlet pull rod, a pull-up seat and a pull-up head; a lower segment of the pull-up seat is fixedly arranged in an inner cavity of the annular flange; a central part of the pull-up seat is provided with an assembly channel extending through in an axial direction; an inner diameter of a lower segment of the assembly channel is greater than an inner diameter of an upper segment of the assembly channel, such that the assembly channel forms a step edge at a connection between the lower segment and the upper segment; the lower segment of the assembly channel forms a water containing chamber; an inner diameter of the water containing chamber is same as an inner diameter of the accommodating cavity, the pull-up seat is provided with a water hole in an outer side wall corresponding to the water containing chamber, such that the third water flow connecting port is in fluid connection with the water containing chamber only through the water hole, and the water containing chamber is located in the water mixing cavity;

[0016] the water outlet pull rod is arranged in the assembly channel of the pull-up seat to be displaceable up and down, and a plug is provided at a bottom of the water outlet pull rod, for watertight sealing with an inner wall of the water containing chamber or an inner wall of the accommodating cavity, wherein an axial portion of the water outlet pull rod is provided with a water flow channel extending through in an axial direction;

[0017] the pull-up head is fixedly arranged on an upper part of the water outlet pull rod, has a water through hole in communication with the water flow channel of the water outlet pull rod, and has a connecting portion on an upper part thereof for connecting with a water outlet pipeline; and

[0018] an external force acts on the pull-up head to drive the water outlet pull rod to move up and down relative to the water mixing valve body, such that the plug of the water outlet pull rod switches between the water containing chamber and the accommodating cavity, and when the plug of the water outlet pull rod is located in the water containing chamber, water flowing into the water mixing cavity flows out through the water flow channel of the water outlet pull rod and the water through hole; and when the plug of the water outlet pull rod is located in the accommodating cavity, water flowing into the water mixing cavity flows out from the third water flow connecting port through the water hole of the water containing chamber of the pull-up seat, thereby realizing the waterway switching of the shower faucet.

[0019] Figure 1 is a schematic exploded view of an embodiment of the present application;

[0020] Figure 2 is a diagram showing a metal shell in an embodiment of the present application;

[0021] Figures 3 and 4 are schematic diagrams of partial assembly according to embodiments of the present application;

[0022] Figures 5 to 7 are schematic diagrams of the embodiment of the present application when an water outlet pull rod is pulled up by force;

[0023] Figures 8-10 are schematic diagrams of the embodiment of the present application when the water outlet pull rod is pressed down; and

[0024] Figure 11 is a schematic diagram shows the bottom of the embodiment of the present application in an assembled state.

[0025] As shown in Figures 1 to 11, a shower faucet with a pull-up waterway switching function is disclosed according to an embodiment of the present application, which includes a plastic water flow core 1, two flow regulating valve cores 17, two handles 7, two water inlet tube pieces 18, a metal shell 41, a bottom plate 42 a pull-up waterway switching valve 6.

[0026] As shown in Figures 1 and 3, the plastic water flow core 1 includes a left water inlet valve body 12, a right water inlet valve body 13, a water mixing valve body 2, and a water outlet tube 3 designed as separated bodies. The water mixing valve body 2 has a hollow inner cavity 27. The water mixing valve body 2 forms upwardly an annular flange 274 with an opening in the middle thereof, and the bottom of the water mixing valve body 2 forms a sunken accommodating cavity 23 at a position corresponding to the annular flange 274. The water mixing valve body 2 extends to the left to form a first water flow connecting port 271, to the right to form a second water flow connecting port 272, and to the front to form a third water flow connecting port 273, and in a central portion of the inner cavity 27 of the water mixing valve body 2, a water mixing cavity 22 for communicating with the first water flow connecting port 271, the second water flow connecting port 272 and the third water flow connecting port 273 is formed. The annular flange 274 is higher than the first water flow connecting port 271 and the second water flow connecting port 272, and at least part of the third water flow connecting port 273 is located in front of the annular flange 274. The left water inlet valve body 12 is provided with a first water inlet cavity 121 extending in a vertical direction, and the first water inlet cavity 121 extends towards the first water flow connecting port 271 to form a first transverse water inlet tube 122. The right water inlet valve body 13 is provided with a second water inlet cavity 131 extending in the vertical direction, and the second water inlet cavity 131 extends towards the second water flow connecting port 272 to form a second transverse water inlet tube 132. The first water flow connecting port 271, the second water flow connecting port 272 and the third water flow connecting port 273 of the water mixing valve body 2 are connected to the first transverse water inlet tube 122, the second transverse water inlet tube 132 and the water outlet tube 3 respectively to form the plastic water flow core 1. The water outlet tube 3 is provided with a water outlet nozzle 31 extending downward at an end at a distance from the third water flow connecting port 273. In this embodiment, the first water flow connecting port 271 and the first transverse water inlet tube 122, the second water flow connecting port 272 and the second transverse water inlet tube 132, and the third water flow connecting port 273 and the water outlet tube 3 are connected by plug-in, and an annular sealing ring 52 is additionally provided to each of socket parts corresponding thereto.

[0027] Preferably, the cross-sectional profiles of the first water flow connecting port 271 and the first transverse water inlet tube 122, the cross-sectional profiles of the second water flow connecting port 272 and the second transverse water inlet tube 132, and the cross-sectional profiles of the third water flow connecting port 273 and the water outlet tube 3 are each in a runway shape, an elliptical shape or a rectangular shape, so that the water mixing valve body 2 will not rotate relatively between the left water inlet valve body 12 and the right water inlet valve body 13.

[0028] As shown in Figures 2 and 3, The metal shell 41 has a transverse cavity 412 for housing the left water inlet valve body 12, the right water inlet valve body 13 and the water mixing valve body 2, and a longitudinal cavity 414 for housing the water outlet tube 3. The transverse cavity 412 and the longitudinal cavity 414 construct together a T-shaped cavity 411 of the metal shell 41. The transverse cavity 412 is provided with valve core holes 416 at positions corresponding to the first water inlet cavity 121 and the second water inlet cavity 131 respectively, and is provided with a switching valve hole 420 at a position corresponding to the annular flange 274. Further, a sunken installation cavity 418 is provided in the middle of the transverse cavity 412, and is configured to accommodate the annular flange 274 of the water mixing valve body 2. In a preferred design, a second limiting boss 419 is provided on a cavity wall of the installation cavity 418, and a second limiting groove 21 corresponding to the second limiting boss 419 (as shown in Figure 1) is provided on a side wall of the water mixing valve body 2, and the second limiting groove 21 of the water mixing valve body 2 slides into the installation cavity 418 through the second limiting boss 419 to achieve rapid positioning and installation of the water mixing valve body 2 to the transverse cavity 412.

[0029] The bottom plate 42 includes a transverse bottom plate 4210 and a longitudinal bottom plate 421, and the transverse bottom plate 4210 and the longitudinal bottom plate 421 can be designed as separated bodies or an integral body, and are designed as separated bodies in this embodiment. The transverse bottom plate 4210 is provided with a first through hole 423 at a position corresponding to each of the two water inlet tube pieces 18. The longitudinal bottom plate 421 is provided with a second through hole 422 at a position corresponding to the water outlet nozzle 31 of the water outlet tube 3, and when the plastic water flow core 1 equipped with the water inlet tube pieces 18 is disposed into the T-shaped cavity 411 of the metal shell 41, the two first through holes 423 of the transverse bottom plate 4210 are sleeved on the two water inlet tube pieces 18 and fixedly arranged below the transverse cavity 412, so as to fix the left water inlet valve body 12, the right water inlet valve body 13 and the water mixing valve body 2. The second through hole 422 of the longitudinal bottom plate 421 is sleeved on the water outlet nozzle 31 of the water outlet tube 3 and fixedly arranged below the longitudinal cavity 414 to fix the water outlet tube 3. The flow regulating valve cores 17 with two handles 7 are respectively fixed in the left first water inlet cavity 121 and the right second water inlet cavity 131 through the two first through holes 423 of the transverse bottom plate 4210.

[0030] As shown in Figures 1, 2, and 5, the transverse cavity 412 of the metal shell 41 is provided with multiple first embedded threaded holes 413 at positions corresponding to the two water inlet tube pieces 18. Outer wall sides of the left water inlet valve body 12 and the right water inlet valve body 13 are each provided with first limiting grooves 16 at positions corresponding to the first embedded threaded holes 413, and at the position of each first limiting groove 16, two limiting blocks 161 are arranged at an interval to form the first limiting groove 16. An inwardly contracted socket portion 14 is formed at a lower part of each of the left water inlet valve body 12 and the right water inlet valve body 13. At least one sealing ring is arranged on an outer wall side of the socket portion 14. A retaining edge 181 is provided on the top of each of the water inlet tube pieces 18. The retaining edge 181 is provided with third through holes 182 at positions corresponding to the first inner threaded holes 413. In assembling, the first limiting grooves 16 of the left water inlet valve body 12 and the right water inlet valve body 13 are slid into along outer walls of the first embedded threaded holes 413 in a position-limited manner, then, the socket portion 14 of the left water inlet valve body 12 and the socket portion 14 of the right water inlet valve body 13 are inserted into inner cavities of the two water inlet tube pieces 18 to achieve fluid connection of the left water inlet valve body 12 and the right water inlet valve body 13 with the two water inlet tube pieces 18, a bolt is inserted into the third through hole 182 of the retaining edge 181 and locked into the first embedded threaded hole 413, thereby locking the two water inlet tube pieces 18 to the metal shell 41 and fixing the left water inlet valve body 12 and the right water inlet valve body 13. It should be emphasized that the installation position of the transverse bottom plate 4210 is ensured by adjusting the height of the first embedded threaded hole 413, and the flatness of the transverse bottom plate 4210 and the bottom of the metal shell 41 in an assembled state is ensured. The first embedded threaded hole 413 is used to achieve both positioning and locking.

[0031] An outer wall of each of the water inlet tube pieces 18 is provided with a threaded section, the two first through holes 423 of the transverse bottom plate 4210 are sleeved on the water inlet tube pieces 18 respectively, and the transverse bottom plate 4210 is locked to the retaining edges 181 of the water inlet tube pieces 18 through external nuts 426.

[0032] In a preferred design, multiple horizontally protruding convex points 424 are provided on a wall of each of the two first through holes 423 of the transverse bottom plate 4210, and in assembling the transverse bottom plate 4210 to the metal shell 41, the multiple convex points 424 are locked into grooves of the threaded sections of the water inlet tube pieces 18, so as to pre-position the transverse bottom plate 4210 to the water inlet tube pieces 18. Moreover, since the transverse bottom plate 4210 and the longitudinal bottom plate 421 are designed as separated bodies, multiple second embedded threaded holes 417 are provided in connection areas of the longitudinal cavity 414 and the transverse cavity 412, the longitudinal bottom plate 421 is locked to the second embedded threaded holes 417 by bolts, and a snap-fit connection is formed between the longitudinal cavity 414 and an end of the longitudinal bottom plate 421 away from the transverse bottom plate 4210. The second embedded threaded holes 417 can not only lock the longitudinal bottom plate 421 in the longitudinal cavity 414, but also use its own height to achieve the installation distance (installation height) of the longitudinal bottom plate 421 to ensure that the longitudinal bottom plate 421 does not interfere with (does not contact) the water outlet nozzle 31, and only provides the function of covering and heat insulation.

[0033] As shown in Figure 2, the longitudinal cavity 414 is provided with a pair of first limiting bosses 415 spaced apart in a width direction and close to an inner cavity wall, for limiting an installation height of the longitudinal bottom plate 421 in a locked state, to ensure flatness of the bottom of the longitudinal bottom plate 421 and the bottom of the longitudinal cavity 414 in the locked state.

[0034] As shown in Figure 11, a special-shaped sealing ring 425 is bonded at the bottom of the transverse bottom plate 4210 and at a joint between the transverse bottom plate 4210 and the transverse cavity 412 of the metal shell 41 to prevent water from dripping outward from the joint.

[0035] As shown in FIG. 1 and with reference to FIG. 5 to FIG. 9, the pull-up waterway switching valve 6 includes a water outlet pull rod 61, a pull-up seat 62 and a pull-up head 63. A lower segment of the pull-up seat 62 is fixedly arranged in an inner cavity of the annular flange 274. A central part of the pull-up seat 62 is provided with an assembly channel 622 extending through in an axial direction. An inner diameter of a lower segment of the assembly channel 622 is greater than an inner diameter of an upper segment of the assembly channel 622, such that the assembly channel 622 forms a step edge 623 at a connection between the lower segment and the upper segment. The lower segment of the assembly channel 622 forms a water containing chamber 6221. An inner diameter of the water containing chamber 6221 is same as an inner diameter of the accommodating cavity 23, the pull-up seat 62 is provided with a water hole 624 in an outer side wall corresponding to the water containing chamber 6221, such that the third water flow connecting port 273 is in fluid connection with the water containing chamber 6221 only through the water hole 624, and the water containing chamber 6221 is located in the water mixing cavity 22. The water outlet pull rod 61 is arranged in the assembly channel 622 of the pull-up seat 62 to be displaceable up and down, and a plug 613 is provided at the bottom of the water outlet pull rod 61, for watertight sealing with an inner wall of the water containing chamber 6221 or an inner wall of the accommodating cavity 23, an axial portion of the water outlet pull rod 61 is provided with a water flow channel 616 extending through in an axial direction. Preferably, a limiting convex edge 615 is provided on an outer wall side of the water outlet pull rod 61, and is configured to cooperate with the step edge 623 of the assembly channel 622 to limit position for each other and to limit height of an upward displacement of the water outlet pull rod 61. A central axial portion of the pull-up head 63 is provided with internal threads, the upper part of the water outlet pull rod 61 is provided with external threads, and the pull-up head 63 is fixedly arranged on an upper part of the water outlet pull rod 61 by threaded connection, and has a water through hole 631 in communication with the water flow channel 616 of the water outlet pull rod 61, and a first external thread 633 is provided on the outer wall side of the pull-up head 63 as a connection part for the pull-up head 63 to fluid connect with external water-using equipment.

[0036] The working principle of the shower faucet is described in detail below:

[0037] Water (cold water) flows into the flow regulating valve core 17 in the first water inlet cavity 121 of the left water inlet valve body 12 from the left water inlet tube piece 18, and flows into the water mixing cavity 22 through the first transverse water inlet tube 122 and the first water flow connecting port 271; water (hot water) flows into the flow regulating valve core 17 in the second water inlet cavity 131 of the right water inlet valve body 13 from the right water inlet tube piece 18, and flows into the water mixing cavity 22 through the second transverse water inlet tube 132 and the second water flow connecting port 272, thereby achieving mixing of the cold water and the hot water. An external force acts on the pull-up head 63 to drive the water outlet pull rod 61 to move up and down relative to the water mixing valve body 2, such that the plug 613 of the water outlet pull rod 61 switches the position between the water containing chamber 6221 and the accommodating cavity 23. As shown in Figures 5 and 6, when the pull-up head 63 is moved upwardly, the plug 613 of the water outlet pull rod 61 is located in the water containing chamber 6221, water flowing into the water mixing cavity 22 flows out through the water flow channel 616 of the water outlet pull rod 61 and the water through hole 631. As shown in Figures 8 and 9, when the pull-up head 63 is moved downwardly, the plug 613 of the water outlet pull rod 61 is located in the accommodating cavity 23, water flowing into the water mixing cavity 22 flows out from the third water flow connecting port 273 through the water hole 624 of the water containing chamber 6221 of the pull-up seat 62, and then flows out from the water 5 outlet nozzle 31 through the water outlet tube 3, the pull-up head 63 is driven by an external force to move up and down, thereby realizing the waterway switching of the shower faucet.. In this embodiment, a second sealing ring 614 is provided on an outer side of the plug 613 of the water outlet pull rod 61 to ensure that the gap around the plug 613 is sealed, achieve the sealing effect, and ensure the complete switching effect 10 of the waterway.

[0038] It should be noted that if the shower faucet has only a single water outlet function, that is, the pull-up waterway switching valve is omitted, it is easy for the person of ordinary skills in the art to make adaptive modifications, including no need to open a valve core hole in the metal shell 41, and no need to set an open annular 15 flange above the middle of the water mixing valve body, and for other structures, reference can be made to the aforementioned embodiments.

Claims

1. A shower faucet, comprising a plastic water flow core, two flow regulating valve cores, two handles, two water inlet tube pieces, a metal shell, and a bottom plate, whereinthe plastic water flow core comprises a left water inlet valve body, a right water inlet valve body, a water mixing valve body, and a water outlet tube designed as separated bodies, the water mixing valve body has a hollow inner cavity and extends to the left to form a first water flow connecting port, to the right to form a second water flow connecting port, and to the front to form a third water flow connecting port, and in a central portion of the inner cavity of the water mixing valve body, a water mixing cavity for communicating with the first water flow connecting port, the second water flow connecting port and the third water flow connecting port is formed; the left water inlet valve body is provided with a first water inlet cavity extending in a vertical direction, and the first water inlet cavity extends towards the first water flow connecting port to form a first transverse water inlet tube; the right water inlet valve body is provided with a second water inlet cavity extending in the vertical direction, and the second water inlet cavity extends towards the second water flow connecting port to form a second transverse water inlet tube, the first water flow connecting port, the second water flow connecting port and the third water flow connecting port of the water mixing valve body are connected to the first transverse water inlet tube, the second transverse water inlet tube and the water outlet tube respectively to form the plastic water flow core, and the water outlet tube is provided with a water outlet nozzle extending downward at an end at a distance from the third water flow connecting port;the metal shell has a transverse cavity for housing the left water inlet valve body, the right water inlet valve body and the water mixing valve body, and a longitudinal cavity for housing the water outlet tube; the transverse cavity has valve core holes at positions corresponding to the first water inlet cavity and the second water inlet cavity respectively, and the transverse cavity and the longitudinal cavity construct together a T-shaped cavity of the metal shell;the two water inlet tube pieces are fixedly connected to a lower part of the left water inlet valve body and a lower part of the right water inlet valve body respectively;the bottom plate comprises a transverse bottom plate and a longitudinal bottom plate, and the transverse bottom plate and the longitudinal bottom plate are designed asseparated bodies or an integral body, and the transverse bottom plate is provided with a first through hole at a position corresponding to each of the two water inlet tube pieces, the longitudinal bottom plate is provided with a second through hole at a position corresponding to the water outlet nozzle of the water outlet tube, and when the plastic water flow core equipped with the water inlet tube pieces is disposed into the T-shaped cavity of the metal shell, the two first through holes of the transverse bottom plate are sleeved on the two water inlet tube pieces and fixedly arranged below the transverse cavity, to fix the left water inlet valve body, the right water inlet valve body and the water mixing valve body; the second through hole of the longitudinal bottom plate is sleeved on the water outlet nozzle of the water outlet tube and fixedly arranged below the longitudinal cavity to fix the water outlet tube;the flow regulating valve cores with two handles are respectively fixed in the left first water inlet cavity and the right second water inlet cavity through the two first through holes of the transverse bottom plate; andwater flows into the flow regulating valve core in the first water inlet cavity of the left water inlet valve body from one of the two water inlet tube pieces, and flows into the water mixing cavity through the first transverse water inlet tube and the first water flow connecting port; and water flows into the flow regulating valve core in the second water inlet cavity of the right water inlet valve body from the other one of the two water inlet tube pieces, and flows into the water mixing cavity through the second transverse water inlet tube and the second water flow connecting port, thereby achieving water mixing, and then flows out from the water outlet nozzle through the water outlet tube.

2. The shower faucet according to claim 1, wherein the first water flow connecting port and the first transverse water inlet tube, the second water flow connecting port and the second transverse water inlet tube, and the third water flow connecting port and the water outlet tube are connected by plug-in, and an annular sealing ring is additionally provided to each of socket parts corresponding thereto.

3. The shower faucet according to claim 2, wherein cross-sectional profiles of the first water flow connecting port and the first transverse water inlet tube, cross-sectional profiles of the second water flow connecting port and the second transverse water inlet tube, and cross-sectional profiles of the third water flow connecting port and the wateroutlet tube are each in a runway shape, an elliptical shape or a rectangular shape.

4. The shower faucet according to claim 1, wherein the transverse cavity of the metal shell is provided with a plurality of first embedded threaded holes at positions corresponding to the two water inlet tube pieces; outer wall sides of the left water inlet valve body and the right water inlet valve body are each provided with first limiting grooves at positions corresponding to the first embedded threaded holes; and an inwardly contracted socket portion is formed at a lower part of each of the left water inlet valve body and the right water inlet valve body; at least one sealing ring is arranged on an outer wall side of the socket portion; a retaining edge is provided on a top of each of the water inlet tube pieces; and the retaining edge is provided with third through holes at positions corresponding to the first inner threaded holes, in assembling, the first limiting grooves of the left water inlet valve body and the right water inlet valve body are slid into along outer walls of the first embedded threaded holes in a position-limited manner, then, the socket portion of the left water inlet valve body and the socket portion of the right water inlet valve body are inserted into inner cavities of the two water inlet tube pieces to achieve fluid connection of the left water inlet valve body and the right water inlet valve body with the two water inlet tube pieces, a bolt is inserted into the third through hole of the retaining edge and locked into the first embedded threaded hole, thereby locking the two water inlet tube pieces to the metal shell and fixing the left water inlet valve body and the right water inlet valve body5. The shower faucet according to claim 4, wherein an outer wall of each of the water inlet tube pieces is provided with a threaded section, the two first through holes of the transverse bottom plate are sleeved on the water inlet tube pieces respectively, and the transverse bottom plate is locked to the retaining edges of the water inlet tube pieces through external nuts.

6. The shower faucet according to claim 5, wherein a plurality of horizontally protruding convex points are provided on a wall of each of the two first through holes of the transverse bottom plate, and in assembling the transverse bottom plate to the metal shell, the plurality of convex points are locked into grooves of the threaded sections of the water inlet tube pieces, to pre-position the transverse bottom plate to thewater inlet tube pieces.

7. The shower faucet according to claim 1, wherein a special-shaped sealing ring is bonded at a bottom of the transverse bottom plate and at a joint between the transverse bottom plate and the transverse cavity of the metal shell to prevent water from dripping outward from the joint.

8. The shower faucet according to claim 1, wherein in a case where the transverse bottom plate and the longitudinal bottom plate are designed as separated bodies, a plurality of second embedded threaded holes are provided in connection areas of the longitudinal cavity and the transverse cavity, the longitudinal bottom plate is locked to the second embedded threaded holes by bolts, and a snap-fit connection is formed between the longitudinal cavity and an end of the longitudinal bottom plate away from the transverse bottom plate.

9. The shower faucet according to claim 8, wherein the longitudinal cavity is provided with a pair of first limiting bosses spaced apart in a width direction and close to an inner cavity wall, for limiting an installation height of the longitudinal bottom plate in a locked state, to ensure flatness of a bottom of the longitudinal bottom plate and a bottom of the longitudinal cavity in the locked state.

10. The shower faucet according to any one of claims 1 to 9, wherein the water mixing valve body forms an annular flange with an opening at an upper part of the water mixing cavity, the annular flange is higher than the first water flow connecting port and the second water flow connecting port, at least part of the third water flow connecting port is located in front of the annular flange, and a bottom of the water mixing valve body forms a sunken accommodating cavity at a position corresponding to the annular flange;the metal shell is provided with a switching valve hole at a position corresponding to the annular flange;the shower faucet further comprises a pull-up waterway switching valve, and the pull-up waterway switching valve comprises a water outlet pull rod, a pull-up seat and a pull-up head; a lower segment of the pull-up seat is fixedly arranged in an inner cavityof the annular flange; a central part of the pull-up seat is provided with an assembly channel extending through in an axial direction; an inner diameter of a lower segment of the assembly channel is greater than an inner diameter of an upper segment of the assembly channel, such that the assembly channel forms a step edge at a connection between the lower segment and the upper segment; the lower segment of the assembly channel forms a water containing chamber; an inner diameter of the water containing chamber is same as an inner diameter of the accommodating cavity, the pull-up seat is provided with a water hole in an outer side wall corresponding to the water containing chamber, such that the third water flow connecting port is in fluid connection with the water containing chamber only through the water hole, and the water containing chamber is located in the water mixing cavity;the water outlet pull rod is arranged in the assembly channel of the pull-up seat to be displaceable up and down, and a plug is provided at a bottom of the water outlet pull rod, for watertight sealing with an inner wall of the water containing chamber or an inner wall of the accommodating cavity, wherein an axial portion of the water outlet pull rod is provided with a water flow channel extending through in an axial direction;the pull-up head is fixedly arranged on an upper part of the water outlet pull rod, has a water through hole in communication with the water flow channel of the water outlet pull rod, and has a connecting portion on an upper part thereof for connecting with a water outlet pipeline; andan external force acts on the pull-up head to drive the water outlet pull rod to move up and down relative to the water mixing valve body, such that the plug of the water outlet pull rod switches between the water containing chamber and the accommodating cavity, and when the plug of the water outlet pull rod is located in the water containing chamber, water flowing into the water mixing cavity flows out through the water flow channel of the water outlet pull rod and the water through hole; and when the plug of the water outlet pull rod is located in the accommodating cavity, water flowing into the water mixing cavity flows out from the third water flow connecting port through the water hole of the water containing chamber of the pull-up seat, thereby realizing the waterway switching of the shower faucet.

11. The shower faucet according to claim 10, wherein a limiting convex edge is provided on an outer wall side of the water outlet pull rod, and is configured to cooperate withthe step edge of the assembly channel to limit position for each other and to limit height of an upward displacement of the water outlet pull rod.

12. The shower faucet according to claim 10, wherein a sunken installation cavity is provided in the middle of the transverse cavity, and is configured to accommodate the annular flange of the water mixing valve body, a second limiting boss is provided on a cavity wall o2f the installation cavity, and a second limiting groove corresponding to the second limiting boss is provided on a side wall of the water mixing valve body, and the second limiting groove of the water mixing valve body slides into the installation cavity through the second limiting boss to achieve rapid positioning and installation of the water mixing valve body.

13. The shower faucet according to claim 10, wherein the connection portion of the pull-up head is first external threads provided on an outer wall side of the pull-up head.

14. The shower faucet according to claim 10, wherein a central axial portion of the pull-up head is provided with internal threads, the upper part of the water outlet pull rod is provided with external threads, and the pull-up head and the water outlet pull rod are fixedly connected by threaded connection.

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