Economical bathtub faucet

Abstract

An economical bathtub faucet comprises a plastic water passing core and a metal shell, the plastic water passing core at least comprises a left water inlet valve body, a right water inlet valve body, a mixing valve body and a water outlet nozzle, the mixing valve body comprises a mixing cavity in the middle and first conduction structures, and the left portion, the right portion and the front portion of the first conduction structures extend to be conducted; the left water inlet valve body and the right water inlet valve body are each provided with a water inlet cavity and a second conduction structure extending outwards from the water inlet cavity. The left water inlet valve body, the right water inlet valve body and the left and right sealing assembly of the mixing valve body are conducted, and a first conducting structure in front of the mixing valve body is assembled with the water outlet nozzle in a sealing manner; the metal shell at least comprises an upper metal shell and a bottom plate, the plastic water passing core is correspondingly arranged in the upper metal shell after being assembled, and then the bottom plate is fixedly installed to complete assembly. The bathtub faucet is composed of the plastic water way and the metal faucet shell, and the heat insulation cavity is formed between the plastic water way and the metal faucet shell, so that heat insulation and scald prevention of the bathtub faucet shell can be guaranteed, and the metal texture of the faucet can be guaranteed.

Description

Technical Field

[0001] The invention relates to the field of sanitary ware, and in particular to an economical bathtub faucet. Background Art

[0002] The outer shell of the faucet is generally made of zinc alloy, which can effectively reduce production costs while retaining the metal texture of the faucet. However, the thermal conductivity of metal materials is relatively strong. When using a metal faucet, hot water can easily transfer heat energy to the surface of the faucet, causing the risk of scalding. Therefore, the industry often designs some structures to avoid external heat conduction. However, the structure of the bathtub faucet is relatively complex. In order to further design and avoid external scalding, the bathtub faucet structure will be further designed. However, some designs are unstable, have poor thermal insulation effects, and are complex and easy to damage. Summary of the invention

[0003] The object of the present invention is to provide an economical bathtub faucet with simple structure, convenient assembly and good heat insulation effect.

[0004] To achieve the above object, the present invention provides an economical bathtub faucet, comprising a plastic water core and a metal shell:

[0005] The plastic water-passing core at least comprises a left water inlet valve body, a right water inlet valve body, a mixing valve body and a water outlet nozzle, wherein the mixing valve body comprises a mixing chamber in the middle and a first conducting structure extending from the mixing chamber to the left, right and front respectively for conducting; the left water inlet valve body and the right water inlet valve body are both provided with a water inlet chamber and a second conducting structure extending outward from the water inlet chamber, and the water inlet chambers of the left water inlet valve body and the right water inlet valve body are both fixed to a lower water inlet pin; the left water inlet valve body and the right water inlet valve body are sealed and assembled with the left and right first conducting structures of the mixing valve body through the second conducting structure to achieve conduction, and the first conducting structure in front of the mixing valve body is sealed and assembled with the water outlet nozzle for conduction; the water inlet chambers of the left water inlet valve body and the right water inlet valve body are respectively provided with a water inlet valve core;

[0006] The metal shell at least includes a metal upper shell and a bottom plate. The metal upper shell is provided with an inner concave cavity. The concave cavity includes left and right valve core assembly cavities, a middle mixing installation cavity and a water outlet shell cavity extending forward. The metal upper shell at the corresponding positions of the left and right valve core assembly cavities is provided with a valve core hole; the bottom plate is provided with left and right pin holes. After the plastic water core is assembled, it is correspondingly placed in the inner concave cavity of the metal upper shell, and the bottom plate is then fixedly installed to complete the assembly.

[0007] Furthermore, the cross-sectional shapes of the first conductive structure, the second conductive structure and the water outlet are consistent and matched, and the cross-sectional shapes are all designed to be elliptical or racetrack-shaped.

[0008] Furthermore, the second conduction structure of the left water inlet valve body, the second conduction structure of the right water inlet valve body, and the first conduction structure extending forward from the mixing chamber are all provided with a longitudinal partition in the middle thereof.

[0009] Furthermore, the second conduction structure of the left water inlet valve body, the right water inlet valve body and the first conduction structure extending forward of the mixing chamber are all provided with quick installation structures at their ends. Specifically, the ends are all provided with grooves and corresponding first sealing rings. The corresponding ends can be directly inserted into the left and right first conduction structures and the water outlet of the mixing valve body. Due to the setting of the grooves and the first sealing rings, sealed conduction can be achieved by insertion.

[0010] Furthermore, the mixing chamber is a mixing switching chamber, which is further provided with a water outlet switching valve, and a switching valve hole is provided at a corresponding position of the metal upper shell.

[0011] Furthermore, the water outlet switching valve comprises a water outlet pull rod, a lifting group upper seat and a lifting head, wherein the lifting head is fixed to the water outlet pull rod and can move up and down in the lifting group upper seat under force; a water flow channel communicating up and down is provided at the center of the lifting head and the water outlet pull rod combination;

[0012] The vertical position of the first conductive structures extending left and right in the mixing chamber is lower than the vertical position of the first conductive structure extending in front in the mixing chamber; the water outlet switching chamber is divided into a redundant chamber, a water mixing chamber, a water outlet chamber and a locking seat from bottom to top, wherein the water mixing chamber is connected to the first conductive structures extending left and right, and the water outlet chamber is connected to the first conductive structure extending in front;

[0013] The upper seat of the lifting group is fixed to the locking seat, and a water stop surface is provided at the lower end of the upper seat of the lifting group, and the water stop surface is located between the mixing water chamber and the water outlet chamber. When the water outlet pull rod is lifted up by force, its bottom water inlet end face is limited to the water stop surface, separating the mixing water chamber from the water outlet chamber, so that the water flow in the mixing water chamber is transmitted outwardly through the water flow channel in the center of the water outlet pull rod; when the water outlet pull rod is pressed down, its bottom water inlet end face abuts against the bottom of the redundant chamber, the mixing water chamber and the water outlet chamber are connected, and the water flow in the mixing water chamber is transmitted outwardly through the first conducting structure extending in front.

[0014] Furthermore, a first through hole and an internal thread are provided inside the lifting head, a second through hole is provided inside the water outlet rod, and a second external thread is provided at the upper end of the water outlet rod; the upper seat of the lifting group is locked to the locking seat by the external thread below, wherein a third through hole and a step edge expanded outward from the lower end of the third through hole are provided inside the upper seat of the lifting group, and the water outlet rod passes through the third through hole of the upper seat of the lifting group and is further locked to the lifting head, the first through hole and the second through hole are connected to form a water flow channel, and a limiting structure is provided on the outer wall of the water outlet rod, when the lifting head is pulled up by force to drive the water outlet rod, and the limiting structure is stuck on the step edge at the lower end of the third through hole during the pulling process, the bottom water inlet end face of the water outlet rod is just limited to the water stop surface.

[0015] Furthermore, a second sealing ring is provided on the outer side of the water inlet end surface at the bottom of the water outlet pull rod to ensure that the gap between the water inlet end surface and the water stop surface is sealed, thereby achieving a sealing effect and ensuring a complete switching effect of the water channel.

[0016] Furthermore, the diameter of the redundant cavity is adapted to the outer diameter of the water inlet end face at the bottom of the water outlet rod. When the lifting head is pressed downward and the water outlet rod moves downward to the bottom water inlet end face and abuts against the bottom of the redundant cavity, the second sealing ring on the outside of the water inlet end face ensures the sealing effect.

[0017] Furthermore, a first external thread is provided on the upper portion of the lifting head, which is further screwed to the hand-held shower head, so that water can flow from the hand-held shower head or the water outlet of the faucet by pulling up or pressing down the lifting head, thereby switching the water path.

[0018] Furthermore, the left and right valve core assembly cavities are both provided with a plurality of first embedded nuts, and the corresponding positions of the left and right water inlet valve bodies are both provided with first limiting grooves. During assembly, the first limiting grooves slide in along the outer wall of the first embedded nut, which can quickly achieve the positioning and limiting effects. At the same time, the left and right water inlet pipe pins are further fixed to the first embedded nuts by screws.

[0019] Furthermore, a plurality of limiting bosses are provided inside the inner concave cavity of the metal shell.

[0020] Furthermore, the water outlet shell cavity is provided with a pair of first limiting bosses close to the cavity wall, which are used to limit the erection height of the water outlet cover plate when it is locked, so as to ensure the flatness of the water outlet cover plate and the water outlet shell cavity.

[0021] Furthermore, the wall of the mixing installation cavity is provided with a second limiting boss, and the side wall of the mixing valve body is provided with a corresponding second limiting groove. The second limiting groove of the mixing valve body slides into the mixing installation cavity through the second limiting boss, so that positioning installation can be quickly achieved.

[0022] Furthermore, the left and right pin holes of the base plate are provided with a plurality of laterally protruding protrusions. When the base plate is assembled to the metal upper shell, the plurality of protrusions are inserted into the threads of the water inlet pins, and a special-shaped sealing ring of matching shape is further bonded and fixed to the back of the base plate to ensure the aesthetics of the product.

[0023] Since the patent adopts a plastic water channel and a metal faucet shell, the faucet shell is generally made of zinc alloy, which can effectively reduce production costs while retaining the metal texture of the faucet surface. The thermal conductivity of metal materials is strong, and the utility model bathtub faucet forms an insulating cavity between the plastic water channel and the metal shell, which can ensure that the bathtub faucet shell is insulated and scald-proof, thereby improving the safety of the bathtub faucet. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is an exploded schematic diagram of an embodiment of the present invention;

[0025] Figure 2 This is a diagram showing a metal upper shell in an embodiment of the present invention;

[0026] Figure 3 , 4 It is an exploded schematic diagram of an embodiment of the present invention;

[0027] Figure 5-7 This is a schematic diagram of an embodiment of the present invention in which the water outlet pull rod is pulled upward by force;

[0028] Figure 8-10 This is a schematic diagram of an embodiment of the present invention when the water outlet pull rod is pressed down;

[0029] Fig.11 It is the bottom of the assembly schematic diagram of the embodiment of the present invention.

[0030] Attached photos

[0031] 1. Plastic water core; 12. Left water inlet valve body; 13. Right water inlet valve body; 14. Water inlet cavity; 15. Second conduction structure; 16. First limiting groove; 17. Water inlet valve core; 18. Water inlet pin; 2. Mixing valve body; 21. Second limiting groove; 22. Mixing cavity; 23. Redundant cavity; 24. Mixing cavity; 25. Water outlet cavity; 26. Locking seat; 27. First conduction structure; 3. Water outlet nozzle; 31. Water outlet; 32. Longitudinal partition; 4. Metal shell; 41. Metal upper shell; 411. Inner concave cavity; 412. Valve core assembly cavity; 413. First embedded nut; 414. Water outlet shell cavity; 415. First limiting boss; 416. Valve core hole; 417. Second embedded nut; 418. Mixing installation cavity; 4 19. Second limiting boss; 420. Switching valve hole; 42. Bottom plate; 421. Water outlet cover plate; 422. Faucet hole; 423. Pin hole; 424. Bump; 425. Special-shaped sealing ring; 426. Pin nut; 5. Quick installation structure; 51. Groove; 52. First sealing ring; 6. Water outlet switching valve; 61. Water outlet pull rod; 611. Second through hole; 612. Second external thread; 613. Water inlet end face; 614. Second sealing ring; 615. Limiting convex edge; 616. Water flow channel; 62. Upper seat of the lifting group; 621. Water stop surface; 622. Third through hole; 623. Step edge; 63. Lifting head; 631. First through hole; 632. Internal thread; 633. First external thread; 7. Faucet handle. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention. Example

[0033] like Figure 1-11 As shown, an economical bathtub faucet includes a plastic water core 1 and a metal shell 4, wherein the plastic water core 1 includes at least a left water inlet valve body 12, a right water inlet valve body 13, a mixing valve body 2 and a water outlet 3, wherein the mixing valve body 2 includes a mixing chamber 22 in the middle and a first conducting structure 27 extending from the mixing chamber 22 to the left, right and front respectively; the left water inlet valve body 12 and the right water inlet valve body 13 are both provided with a water inlet chamber 14 and a second conducting structure extending outward from the water inlet chamber 14 15, the water inlet chamber 14 of the left water inlet valve body 12 and the right water inlet valve body 13 are both fixed to a lower water inlet pin 18; the left water inlet valve body 12 and the right water inlet valve body 13 are sealed and assembled with the left and right first conductive structures 27 of the mixing valve body 2 via the second conductive structure 15 to achieve conduction, and the front first conductive structure 27 of the mixing valve body 2 is sealed and assembled with the water outlet nozzle 3 to achieve conduction; a water inlet valve core 17 is fixedly arranged in the water inlet chamber 14 of the left water inlet valve body 12 and the right water inlet valve body 13 respectively;

[0034] The metal shell 4 at least includes a metal upper shell 41 and a bottom plate 42. The metal upper shell 41 is provided with an inner concave cavity 411. The inner concave cavity 411 includes left and right valve core assembly cavities 412, a middle mixing installation cavity 418, and a water outlet shell cavity 414 extending forward in the middle. Figure 2 As shown, the metal upper shell 41 is provided with valve core holes 416 at the corresponding positions of the left and right valve core assembly cavities 412; the bottom plate 42 is provided with left and right pin holes 423, and the plastic water core 1 is correspondingly placed into the inner concave cavity 411 of the metal upper shell 41 after assembly, and the bottom plate 42 further locks the metal upper shell 41 to complete the assembly, and there is another water outlet cover plate 421, which extends outward from the middle of the bottom plate 42, corresponding to the water outlet shell cavity 414, and the front end is provided with a water nozzle hole 422, corresponding to the water outlet of the water nozzle 3 Mouth 31, the water outlet cover plate 421 is locked in the water outlet shell cavity 414. Furthermore, two second embedded nuts 417 are provided at the water outlet shell cavity 414 of the inner concave cavity 411 of the metal upper shell 41. The second embedded nuts 417 can not only lock the water outlet cover plate 421 in the water outlet shell cavity 414, but also use their own height to achieve the installation distance (installation height) of the water outlet cover plate 421 to ensure that the water outlet cover plate 421 does not interfere with (does not contact) the water outlet nozzle 3, and only provides covering and heat insulation.

[0035] like Figure 1As shown, the first conducting structure 27, the second conducting structure 15 and the water outlet 3 have the same and compatible cross-sectional shapes. In this embodiment, their cross-sectional shapes are all designed to be compatible with the runway shape. Further, in this embodiment, the second conducting structure 15 of the left water inlet valve body 12, the right water inlet valve body 13 and the first conducting structure 27 extending forward of the mixing chamber 22 are all provided with a longitudinal partition 32 in the middle, which can further enhance the compressive strength of the valve body, especially to prevent the runway-shaped cross-sectional shape from being deformed.

[0036] The second conduction structure 15 of the left water inlet valve body 12, the right water inlet valve body 13, and the first conduction structure 27 extending forward of the mixing chamber 22 are all provided with a quick installation structure 5 at their ends. Specifically, the ends are all provided with a groove 51 and a corresponding first sealing ring 52. The corresponding ends can be directly inserted into the left and right first conduction structures 27 and the water outlet nozzle 3 of the mixing valve body 2. Due to the setting of the groove 51 and the first sealing ring 52, sealing conduction can be achieved by insertion. In this embodiment, two parallel grooves 51 and the first sealing ring 52 are provided at the same time to better achieve quick installation. The design of the quick installation structure 5 makes the installation process of the faucet convenient and simple, and easy to disassemble and assemble.

[0037] like Figure 1 As shown, in this embodiment, the mixing chamber 22 is a mixing switching chamber 22, further provided with a water outlet switching valve 6, and a switching valve hole 420 is provided at a corresponding position of the metal upper shell 41. The water outlet switching valve 6 includes a water outlet pull rod 61, a lifting group upper seat 62 and a lifting head 63, the lifting head 63 is fixed to the water outlet pull rod 61, and after the water outlet pull rod 61 and the lifting head 63 are combined, a water flow channel 616 is provided in the center that is connected up and down, and they are combined and force-bearing to move up and down in the lifting group upper seat 62;

[0038] The vertical position of the first conductive structure 27 extending leftward and rightward in the mixing chamber 22 is lower than the vertical position of the first conductive structure 27 extending forward in the mixing chamber 22. Figure 6 As shown, the mixing switching chamber 22 is divided into a redundant chamber 23, a water mixing chamber 24, a water outlet chamber 25 and a locking seat 26 from bottom to top, wherein the water mixing chamber 24 is connected to the first conductive structure 27 extending to the left and right, and the water outlet chamber 25 is connected to the first conductive structure 27 extending in front;

[0039] The upper seat 62 of the lifting group is fixed to the locking seat 26, and a water stop surface 621 is provided at the lower end of the upper seat 62 of the lifting group. The water stop surface 621 is located between the mixing water chamber 24 and the water outlet chamber 25. When the water outlet pull rod 61 is pulled up by force, its bottom water inlet end surface 613 is limited to the water stop surface 621, separating the mixing water chamber 24 from the water outlet chamber 25, so that the water flow in the mixing water chamber 24 is transmitted outward from the second through hole 611 (water flow channel 616) at the center of the water outlet pull rod 61. Figure 5-7As shown; when the water outlet pull rod 61 is pressed down, its bottom water inlet end face 613 abuts against the bottom of the redundant chamber 23, and the water inlet end face 613 is closed by the bottom of the redundant chamber 23. At the same time, the mixing chamber 24 and the water outlet chamber 25 are connected, and the water flow in the mixing chamber 24 is transmitted outward through the first conductive structure 27 extending in front, as shown in FIG. Figure 8-10 shown.

[0040] In this embodiment, a first external thread 633 is provided on the upper portion of the lifting head 63, which is further threadedly connected to an external water outlet device, generally an external hand-held showerhead. Then, by pulling up or pressing down the lifting head 63, water can flow from the hand-held showerhead or the water outlet 3 of the faucet, thereby switching the water path.

[0041] The lifting head 63 is provided with a first through hole and an internal thread 632, the water outlet rod 61 is provided with a second through hole, and the upper end of the water outlet rod 61 is provided with a second external thread 612; the lifting group upper seat 62 is locked to the locking seat 26 by the external thread below, wherein the lifting group upper seat 62 is provided with a third through hole 622 and a step edge 623 expanded outward at the lower end of the third through hole 622, the water outlet rod 61 passes through the third through hole 622 of the lifting group upper seat 62, and is further locked to the lifting head 63, the first through hole and the second through hole are connected to form a water flow channel 616, the water outlet rod The outer wall of 61 is provided with a limiting structure, which is a limiting convex edge 615 around the outer wall in this embodiment. When the lifting head 63 is pulled upward by force to drive the water outlet rod 61, the limiting convex edge 615 is stuck on the step edge 623 at the lower end of the third through hole 622 during the upward pulling process, and the bottom water inlet end face 613 of the water outlet rod 61 is just limited to the water stop surface 621. In this embodiment, the outer side of the bottom water inlet end face 613 of the water outlet rod 61 is provided with a second sealing ring 614 to ensure that the gap between the water inlet end face 613 and the water stop surface 621 is sealed, so as to achieve a sealing effect and ensure a complete switching effect of the waterway;

[0042] Furthermore, the diameter of the redundant cavity 23 is matched with the outer diameter of the water inlet end face 613 at the bottom of the water outlet rod 61. When the lifting head 63 is pressed downward and the water outlet rod 61 moves downward to the bottom water inlet end face 613 against the bottom of the redundant cavity 23, the water inlet end face 613 is closed by the bottom of the redundant cavity 23. The second sealing ring 614 on the outside of the water inlet end face 613 further ensures that water cannot enter from the bottom of the water outlet rod 61, thereby ensuring the switching effect.

[0043] In this embodiment, the upper end of the water inlet valve core 17 passes through the valve core hole 416 of the metal upper shell 41, and a faucet handle 7 is further installed.

[0044] Furthermore, a plurality of limiting bosses are provided inside the inner concave cavity 411 of the metal shell 4. As shown in the figure, the water outlet shell cavity 414 is provided with a pair of first limiting bosses 415 close to the cavity wall, so as to ensure the installation height of the water outlet cover plate 421 when it is locked (maintaining a proper distance from the water outlet nozzle 3), and to ensure the flatness of the water outlet cover plate 421 and the water outlet shell cavity 414; the cavity wall of the mixing installation cavity 418 is provided with a second limiting boss 419, and the side wall of the mixing valve body 2 is provided with a corresponding second limiting groove 21. During installation, the second limiting groove 21 of the mixing valve body 2 slides into the mixing installation cavity 418 through the second limiting boss 419, so that positioning installation can be quickly achieved.

[0045] The left and right valve core assembly cavities 412 are both provided with three first embedded nuts 413, and the corresponding positions of the left and right water inlet valve bodies 13 are both provided with three first limiting grooves 16. During assembly, the three first limiting grooves 16 slide in along the outer walls of the three first embedded nuts 413, which can quickly achieve the positioning and limiting effects. At the same time, the left and right water inlet pins 18 are further fixed to the first embedded nuts 413 by screws, which not only utilizes the first embedded nuts 413 to achieve the positioning effect, but also utilizes it to achieve the locking effect. At the same time, the height of the first embedded nut 413 ensures the installation position of the bottom plate 42, and ensures the flatness of the bottom plate 42 and the bottom of the metal upper shell 41.

[0046] The left and right pin holes 423 of the bottom plate 42 are both provided with a plurality of laterally protruding protrusions 424. When the bottom plate 42 is assembled to the metal upper shell 41, the plurality of protrusions 424 are inserted into the threads of the water inlet pins 18, and a special-shaped sealing ring 425 of matching shape is further bonded and fixed to the back of the bottom plate 42, so as to further ensure the aesthetics of the product. In actual use, during the installation process, the bottom plate 42 is further pressed by the pin nut 426.

[0047] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An economical bathtub faucet, comprising a plastic water core (1) and a metal shell (4), characterized in that: The plastic water flow core (1) comprises at least a left water inlet valve body (12), a right water inlet valve body (13), a mixing valve body (2) and a water outlet nozzle (3), wherein the mixing valve body (2) comprises a mixing chamber (22) in the middle and a first conducting structure (27) extending from the mixing chamber (22) to the left, right and front respectively; the left water inlet valve body (12) and the right water inlet valve body (13) are both provided with a water inlet chamber (14) and a second conducting structure (15) extending outward from the water inlet chamber (14); The water inlet chamber (14) of the valve body (13) is fixedly connected to a lower water inlet pin (18); the left water inlet valve body (12) and the right water inlet valve body (13) are connected to each other through a second connection structure (15) and a sealing assembly with the left and right first connection structures (27) of the mixing valve body (2); the front first connection structure (27) of the mixing valve body (2) is connected to the water outlet nozzle (3) through a sealing assembly; the water inlet chamber (14) of the left water inlet valve body (12) and the right water inlet valve body (13) are respectively provided with a water inlet valve core (17); The metal housing (4) comprises at least a metal upper shell (41) and a bottom plate (42); the metal upper shell (41) is provided with an inner concave cavity (411); the concave cavity comprises left and right valve core assembly cavities (412), a middle mixing installation cavity (418), and a water outlet shell cavity (414) extending forward; valve core holes (416) are provided on the metal upper shell (41) at positions corresponding to the left and right valve core assembly cavities (412); the bottom plate (42) is provided with left and right tube pin holes (423); after assembly, the plastic water core (1) is correspondingly placed in the inner concave cavity (411) of the metal upper shell (41); and the bottom plate (42) is then fixedly installed to complete the assembly.

2. The economical bathtub faucet according to claim 1, characterized in that: The first conductive structure (27), the second conductive structure (15) and the water outlet (3) have consistent and compatible cross-sectional shapes, and their cross-sectional shapes are all designed to be elliptical or racetrack-shaped.

3. The economical bathtub faucet according to claim 2, characterized in that: The second conduction structure (15) of the left water inlet valve body (12), the right water inlet valve body (13), and the first conduction structure (27) extending forward from the mixing chamber (22) are all provided with a longitudinal partition plate (32) in the middle thereof.

4. The economical bathtub faucet according to claim 1, characterized in that: The second conduction structure (15) of the left water inlet valve body (12), the right water inlet valve body (13), and the first conduction structure (27) extending forward from the mixing chamber (22) are all provided at their ends with a quick installation structure (5). Specifically, the ends are all provided with a groove (51) and a corresponding first sealing ring (52). The corresponding ends can be directly inserted into the left and right first conduction structures (27) and the water outlet nozzle (3) of the mixing valve body (2). Due to the provision of the groove (51) and the first sealing ring (52), sealing conduction can be achieved by insertion.

5. The economical bathtub faucet according to claim 1, characterized in that: The mixing chamber (22) is a mixing switching chamber and is further provided with a water outlet switching valve (6), and a switching valve hole (420) is provided at a corresponding position of the metal upper shell (41).

6. The economical bathtub faucet according to claim 5, characterized in that: The water outlet switching valve (6) comprises a water outlet pull rod (61), a lifting group upper seat (62) and a lifting head (63); the lifting head (63) is fixed to the water outlet pull rod (61) and can move up and down in the lifting group upper seat (62) under force; a water flow channel (616) communicating up and down is provided at the center of the combination of the lifting head (63) and the water outlet pull rod (61); The vertical position of the first conductive structures (27) extending left and right in the mixing chamber (22) is lower than the vertical position of the first conductive structure (27) extending forward in the mixing chamber (22); the mixing chamber (22) is divided from bottom to top into a redundant chamber (23), a water mixing chamber (24), a water outlet chamber (25) and a locking seat (26), wherein the water mixing chamber (24) is directly connected to the first conductive structures (27) extending left and right, and the water outlet chamber (25) is directly connected to the first conductive structure (27) extending forward; The upper seat (62) of the lifting group is fixed to the locking seat (26), and a water stop surface (621) is provided at the lower end of the upper seat (62) of the lifting group. The water stop surface (621) is located between the mixing water chamber (24) and the water outlet chamber (25). When the water outlet pull rod (61) is lifted up by force, its bottom water inlet end surface (613) is limited to the water stop surface (621), so that the mixing water chamber (24) and the water outlet chamber (25) are separated, so that the water flow in the mixing water chamber (24) is transmitted outward through the water flow channel (616) at the center of the water outlet pull rod (61); when the water outlet pull rod (61) is pressed down, its bottom water inlet end surface (613) abuts against the bottom of the redundant chamber (23), the mixing water chamber (24) and the water outlet chamber (25) are connected, and the water flow in the mixing water chamber (24) is transmitted outward through the first conducting structure (27) extending in front.

7. The economical bathtub faucet according to claim 6, characterized in that: The lifting head (63) is provided with a first through hole (631) and an internal thread (632), the water outlet rod (61) is provided with a second through hole (611), and the upper end of the water outlet rod (61) is provided with a second external thread (612); the lifting group upper seat (62) is locked to the locking seat (26) through the external thread at the bottom, wherein the lifting group upper seat (62) is provided with a third through hole (622) and a step edge (623) expanding outward from the lower end of the third through hole (622), and the water outlet rod (61) passes through the lifting group upper seat The third through hole (622) of the lifting head (62) is further locked to the lifting head (63), the first through hole (631) and the second through hole (611) are connected to form a water flow channel (616), and the outer wall of the water outlet pull rod (61) is provided with a limiting structure. When the lifting head (63) is pulled upward by force to drive the water outlet pull rod (61), the limiting structure is stuck on the step edge (623) at the lower end of the third through hole (622) during the upward pulling process, and the bottom water inlet end face (613) of the water outlet pull rod (61) is just limited to the water stop surface (621).

8. The economical bathtub faucet according to claim 6, characterized in that: A second sealing ring (614) is provided on the outer side of the water inlet end surface (613) at the bottom of the water outlet pull rod (61) to ensure that the gap between the water inlet end surface (613) and the water stop surface (621) is sealed, thereby achieving a sealing effect and ensuring a complete switching effect of the water channel.

9. The economical bathtub faucet according to claim 8, characterized in that: The diameter of the redundant cavity (23) is matched to the outer diameter of the water inlet end surface (613) at the bottom of the water outlet pull rod (61). When the lifting head (63) is pressed downward and the water outlet pull rod (61) moves downward to the bottom water inlet end surface (613) and abuts against the bottom of the redundant cavity (23), the second sealing ring (614) on the outside of the water inlet end surface (613) ensures a sealing effect.

10. The economical bathtub faucet according to claim 6, characterized in that: The upper portion of the lifting head (63) is provided with a first external thread (633), which is further threadedly connected to the hand-held shower head, so that water can flow from the hand-held shower head or the water outlet (3) of the faucet by pulling up or pressing down the lifting head (63), thereby switching the water path.

11. The economical bathtub faucet according to claim 1, characterized in that: The left and right valve core assembly cavities (412) are both provided with a plurality of first embedded nuts (413), and corresponding positions of the left and right water inlet valve bodies (13) are both provided with first limiting grooves (16). During assembly, the first limiting grooves (16) are limitedly slid along the outer wall of the first embedded nut (413), so as to quickly achieve the positioning and limiting effects. At the same time, the left and right water inlet pipe pins (18) are further fixed to the first embedded nuts (413) by screws.

12. The economical bathtub faucet according to claim 1, characterized in that: A plurality of limiting bosses are provided inside the inner concave cavity (411) of the metal shell (4).

13. The economical bathtub faucet according to claim 12, characterized in that: The water outlet housing cavity (414) is provided with a pair of first limiting bosses (415) close to the cavity wall, which are used to limit the installation height of the water outlet cover plate (421) when it is locked, so as to ensure the flatness of the water outlet cover plate (421) and the water outlet housing cavity (414).

14. The economical bathtub faucet according to claim 12, characterized in that: The wall of the mixing installation cavity (418) is provided with a second limiting boss (419), and the side wall of the mixing valve body (2) is provided with a corresponding second limiting groove (21); the second limiting groove (21) of the mixing valve body (2) slides into the mixing installation cavity (418) via the second limiting boss (419), so that positioning installation can be quickly achieved.

15. The economical bathtub faucet according to claim 1, characterized in that: The left and right tube pin holes (423) of the bottom plate (42) are both provided with a plurality of protruding bumps (424) that protrude laterally. When the bottom plate (42) is assembled to the metal upper shell (41), the plurality of protruding bumps (424) are inserted into the threads of the water inlet tube pins (18). A special-shaped sealing ring (425) of matching shape is further bonded and fixed to the back of the bottom plate (42) to ensure the aesthetics of the product.

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