Faucet and pipeline structure thereof

Abstract

The invention provides a faucet and a pipeline structure thereof. The pipeline structure comprises a pipeline assembly and a valve element seat. The pipeline assembly comprises a connecting seat, at least one water inlet pipe and at least one water outlet pipe, the connecting seat is detachably connected with the valve element seat, and one end of the water inlet pipe and one end of the water outlet pipe are integrally connected with the connecting seat; the water inlet pipe comprises a first water opening formed in the connecting base, the water outlet pipe comprises a second water opening formed in the connecting base, the first water opening of the water inlet pipe and the second water opening of the water outlet pipe are in fluid connection with the valve element base, and the valve element base is used for installing a valve element. By applying the technical scheme, the effects of convenience in assembly and low cost can be realized.

Description

Technical Field

[0001] The invention relates to the field of bathroom, in particular to a faucet and a pipeline structure thereof. Background Art

[0002] Conventional faucets, such as single-handle faucets, are usually made into faucet shells by casting or other methods. The material of the faucet shell is usually copper alloy, etc., and the faucet shell made of copper is usually directly formed into a water outlet pipe body. The pipeline structure of this type of faucet includes a valve seat for mounting a valve core and multiple pipes connected to the valve seat, and the ends of the multiple pipes are connected to the valve seat by threads. During installation, it is necessary to first install the valve seat on the faucet shell, and then extend the ends of the multiple pipes from the lower end of the faucet shell into the faucet shell. The installation steps are many and the installation is troublesome. In addition, this type of faucet also includes a water outlet pipe extending inside the faucet shell. The water outlet pipe generally connects the water outlet to the side of the valve seat where the valve core is mounted. This requires a larger assembly space, making it difficult to achieve water connection in the small space inside the faucet. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a pipeline structure of a faucet, including a pipeline assembly and a valve core seat; the pipeline assembly includes a connecting seat, at least one water inlet pipe and at least one water outlet pipe, the connecting seat is detachably connected to the valve core seat, one end of the water inlet pipe and one end of the water outlet pipe are integrally connected to the connecting seat; the water inlet pipe includes a first water port formed on the connecting seat, the water outlet pipe includes a second water port formed on the connecting seat, the first water port of the water inlet pipe and the second water port of the water outlet pipe are respectively connected to the fluid of the valve core seat, and the valve core seat is used to install the valve core.

[0004] In a more preferred embodiment, the connecting seat includes a first end face and a second end face; the valve core seat is detachably connected to the first end face, and the first water outlet of the water inlet pipe and the second water outlet of the water outlet pipe are respectively formed on the first end face; one end of the water inlet pipe and one end of the water outlet pipe are integrally connected to the second end face of the connecting seat.

[0005] In a more preferred embodiment, the first water inlet of the water inlet pipe and the second water inlet of the water outlet pipe are respectively protruded on the first end face, and the valve core seat includes a plurality of connecting ports, and the plurality of connecting ports are respectively engaged and connected with the first water inlet of the water inlet pipe and the second water inlet of the water outlet pipe.

[0006] In a more preferred embodiment, a sealing ring is further sealed between the first water port of the water inlet pipe and the second water port of the water outlet pipe and the connecting port.

[0007] In a more preferred embodiment, a positioning connection structure is further provided between the first end surface and the valve core seat.

[0008] In a more preferred embodiment, the pipeline structure includes a plurality of valve core seats of different sizes; the plurality of valve core seats of different sizes are replaceably connected to the connecting seat.

[0009] In a more preferred embodiment, the tube assembly is made of plastic, rubber or elastomeric polymer.

[0010] The present invention also provides a faucet, comprising the pipeline structure.

[0011] In a more preferred embodiment, it further comprises a faucet housing, wherein the faucet housing comprises a main body and a faucet spout connected in one piece, wherein the faucet spout is connected to the upper side of the main body;

[0012] The upper end of the main body includes an installation chamber, the connecting seat is arranged in the installation chamber, the water inlet pipe and the water outlet pipe are at least partially arranged in the main body, and the ends of the water inlet pipe and the water outlet pipe are located outside the lower end of the main body;

[0013] The faucet further comprises a connection joint and a water outlet connection pipe, wherein the connection joint can detachably connect the end of the water outlet pipe and the water outlet connection pipe, and the water outlet connection pipe at least extends through the main body and the faucet spout and is connected to the end of the faucet spout.

[0014] In a more preferred embodiment, the connection between the faucet spout and the main body includes a passage for the water outlet connecting pipe to pass through.

[0015] In a more preferred embodiment, the connection seat is arranged at the bottom of the installation chamber; the bottom of the installation chamber includes an installation opening, and the installation opening is used for the water inlet pipe and the water outlet pipe to pass through.

[0016] In a more preferred embodiment, it also includes a valve core and a pressure cover; the connecting seat, valve core seat and valve core are arranged in sequence from bottom to top in the installation chamber, and the pressure cover is tightly connected to the installation chamber to press and fix the valve core.

[0017] In a more preferred embodiment, the connecting joint includes a connecting body and a connecting buckle;

[0018] The connecting body comprises a connecting opening, the upper part of the connecting opening forms a connecting space, the lower part of the connecting opening forms an internal flow channel, two inlets of the internal flow channel are respectively connected to the connecting space, and the wall of the connecting space forms a buckle hole;

[0019] A first annular groove is formed at the end of the water outlet pipe, and a second annular groove is formed at the end of the water outlet connecting pipe. The connecting buckle includes a buckle ring and an elastic buckle block arranged on the buckle ring. The buckle ring is sleeved around the first annular groove of the water outlet pipe and the second annular groove of the water outlet connecting pipe. The buckle ring, the end of the water outlet pipe and the end of the water outlet connecting pipe form a connecting head. The connecting head is suitable for being installed from the connecting opening so that the elastic buckle block is connected to the buckle hole corresponding to the buckle hole and the end of the water outlet pipe and the end of the water outlet connecting pipe are respectively connected to the two inlets of the internal flow channel.

[0020] In a more preferred embodiment, the connection joint includes a connection body and two elastic buckles, the connection body includes an internal flow channel, and two inlets of the internal flow channel face different directions respectively;

[0021] A buckle hole is provided inside the inlet, and an operating button corresponding to the buckle hole is provided on the outside of the inlet. A first annular groove is formed at the end of the water outlet pipe, and a second annular groove is formed at the end of the water outlet connecting pipe. The elastic buckle includes a buckle ring portion and an elastic buckle block provided on the buckle ring portion, and the buckle ring portion is rotatably sleeved on the first annular groove or the second annular groove. A guide groove is provided on the inner wall of the inlet, and the circumferential width of the guide groove gradually increases in the direction pointing to the end of the inlet. The elastic buckle includes a guide block extending into the guide groove, and the guide block is used to guide the sliding in the guide groove so as to deflect the elastic buckle to guide the elastic buckle to rotate until the elastic buckle block corresponds to the buckle hole, and the operating button can be pressed to correspond to the elastic buckle block so that the elastic buckle block can be released from the buckle hole.

[0022] In a more preferred embodiment, the guide block includes two guide bevels, the axial front ends of the two guide bevels intersect, the spacing between the axial rear ends of the two guide bevels gradually increases, the guide block is formed at the axial front end of the elastic snap block, and the axial rear end of the elastic snap block can be snap-connected with the buckle hole.

[0023] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0024] 1. The pipeline structure includes a pipeline assembly and a valve core seat; the pipeline assembly includes a connecting seat, at least one water inlet pipe and at least one water outlet pipe, the connecting seat is detachably connected to the valve core seat, one end of the water inlet pipe and one end of the water outlet pipe are integrally connected to the connecting seat; the water inlet pipe includes a first water port formed on the connecting seat, the water outlet pipe includes a second water port formed on the connecting seat, the first water port of the water inlet pipe and the second water port of the water outlet pipe are respectively connected to the fluid of the valve core seat, and the valve core seat is used to install the valve core. The water inlet pipe, the water outlet pipe and the connecting seat are integrally connected, and then detachably connected to the valve core seat through the connecting seat, the water inlet pipe and the water outlet pipe do not need to be separately connected to the valve core seat, the assembly is convenient and the cost is low. In addition, it can be applied to the pipeline installation of small-sized faucet housings.

[0025] 2. The valve core seat and the connecting seat can be detachably connected to each other to meet the requirements of matching with different valve core seats, and are suitable for the installation of different valve cores.

[0026] 3. The connection seat includes a first end face and a second end face. The valve core seat is detachably connected to the first end face, and the first water port of the water inlet pipe and the second water port of the water outlet pipe are respectively formed on the first end face. One end of the water inlet pipe and one end of the water outlet pipe are integrally connected to the second end face of the connection seat. Under this structure, the radial dimension of the pipeline structure is smaller, and it can be applied to the main body of a faucet housing of a smaller size.

[0027] 4. In this embodiment, a sealing ring is further sealed between the first water port of the water inlet pipe and the second water port of the water outlet pipe and the connecting port. The sealing ring is sleeved outside the first water port of the water inlet pipe or the second water port of the water outlet pipe, and the sealing ring forms a radial seal between the water inlet pipe, the water outlet pipe and the valve core seat, which has a better sealing effect than the axial seal in the prior art.

[0028] 5. The faucet housing includes an integrally connected main body and a faucet spout, wherein the faucet spout is connected to the upper side of the main body; the upper end of the main body includes an installation chamber, wherein the connection seat is arranged in the installation chamber, wherein the water inlet pipe and the water outlet pipe are at least partially arranged in the main body, wherein the end of the water inlet pipe and the end of the water outlet pipe are located outside the lower end of the main body; the faucet further includes a connection joint and a water outlet connection pipe, wherein the connection joint can detachably connect the end of the water outlet pipe and the water outlet connection pipe, wherein the water outlet connection pipe at least extends through the main body and the faucet spout and is connected to the end of the faucet spout. The connection joint is located outside the main body, and the radial dimension of the main body is small. The water inlet pipe, the water outlet pipe, and the water outlet connection pipe are located within the circumferential projection of the connection seat, and the radial dimension of the main body can be made as small as possible, and the assembly is convenient, and there is no need to align the pipeline from the lower end of the main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A three-dimensional schematic diagram of a faucet in a preferred embodiment of the present invention;

[0030] Figure 2 It is a three-dimensional exploded schematic diagram of a faucet in a preferred embodiment of the present invention;

[0031] Figure 3 It is a three-dimensional exploded schematic diagram of the pipeline structure in the preferred embodiment of the present invention;

[0032] Figure 4 It is a cross-sectional schematic diagram of a faucet in a preferred embodiment of the present invention;

[0033] Figure 5 for Figure 4 A partial enlarged view of .

[0034] Figure 6 It is a three-dimensional exploded schematic diagram of the connection joint, the water outlet pipe and the water outlet connection pipe in the preferred embodiment of the present invention;

[0035] Figure 7 It is a cross-sectional schematic diagram of a connection joint, a water outlet pipe and a water outlet connection pipe in a preferred embodiment of the present invention;

[0036] Figure 8 It is a cross-sectional schematic diagram of a connecting joint, a water outlet pipe and a water outlet connecting pipe in another embodiment of the present invention;

[0037] Fig. 9 It is a three-dimensional exploded schematic diagram of a connecting joint, a water outlet pipe and a water outlet connecting pipe in another embodiment of the present invention. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] See also Figure 1-Figure 7 The present invention provides a faucet, which includes a faucet housing 1, a pipeline structure, a valve core 3, a gland 4 and a handle assembly 5.

[0042] The faucet housing 1 includes a main body 11 and a faucet spout 12 that are integrally connected. The main body 11 is cylindrical, and the faucet spout 12 is connected to the upper side of the main body 11. The lower end of the main body 11 is used to be fixedly connected to the wash basin countertop. The lower end of the main body 11 is fixedly connected to the countertop through a threaded pipe and a threaded seat, etc., which will not be described in detail here.

[0043] The pipeline structure includes a pipeline assembly 21 and a valve core seat 22. The pipeline assembly 21 includes a connection seat 211, at least one water inlet pipe 212 and at least one water outlet pipe 213. In this embodiment, the pipeline assembly 21 includes two water inlet pipes 212 and one water outlet pipe 213. The two water inlet pipes 212 are connected to hot water and cold water respectively. The connection seat 211 is detachably connected to the valve core seat 22, and one end of the water inlet pipe 212 and one end of the water outlet pipe 213 are integrally connected to the connection seat 211. The water inlet pipe 212 includes a first water port 2121 formed on the connection seat 211, and the water outlet pipe 213 includes a second water port 2131 formed on the connection seat 211. The first water port 2121 of the water inlet pipe 212 and the second water port 2131 of the water outlet pipe 213 are respectively connected to the valve core seat 22 fluidly, and the valve core seat 22 is used to install the valve core 3. The water inlet pipe 212, the water outlet pipe 213 and the connecting seat 211 are connected as a whole, and then detachably connected to the valve core seat 22 through the connecting seat 211. The water inlet pipe 212 and the water outlet pipe 213 do not need to be connected to the valve core seat 22 separately, which is convenient to assemble and low in cost. In addition, the detachable connection between the valve core seat 22 and the connecting seat 211 can also meet the coordination of different valve core seats 22 and is suitable for the installation of different valve cores 3.

[0044] In this embodiment, the connection seat 211 includes a first end face 2111 and a second end face 2112. The connection seat 211 is in the shape of a disk. In some simple replacements, the connection seat 211 can also be a sheet structure with different shapes, as long as it includes the first end face 2111 and the second end face 2112. The valve core seat 22 is detachably connected to the first end face 2111, and the first water port 2121 of the water inlet pipe 212 and the second water port 2131 of the water outlet pipe 213 are respectively formed on the first end face 2111. One end of the water inlet pipe 212 and one end of the water outlet pipe 213 are integrally connected to the second end face 2112 of the connection seat 211. Under this structure, the radial dimension of the pipeline structure is smaller, and it can be applied to the main body 11 of the faucet housing 1 of a smaller size.

[0045] The first water port 2121 of the water inlet pipe 212 and the second water port 2131 of the water outlet pipe 213 are respectively convexly arranged on the first end surface 2111, and the valve core seat 22 includes a plurality of connection ports 221, and the plurality of connection ports 221 are respectively engaged and connected with the first water port 2121 of the water inlet pipe 212 and the second water port 2131 of the water outlet pipe 213. The connection ports 221 are respectively engaged and connected with the first water port 2121 of the water inlet pipe 212 and the second water port 2131 of the water outlet pipe 213, which can play a role of partial positioning connection. When the valve core seat 22 is not in contact with the first end surface 2111 of the connection seat 211, the two will be separated by a distance, and this situation can be quickly discovered during installation, which is convenient for correction.

[0046] In this embodiment, a sealing ring 23 is further sealed between the first water port 2121 of the water inlet pipe 212 and the second water port 2131 of the water outlet pipe 213 and the connecting port 221. The sealing ring 23 is sleeved outside the first water port 2121 of the water inlet pipe 212 or the second water port 2131 of the water outlet pipe 213, and the sealing ring 23 forms a radial seal between the water inlet pipe 212, the water outlet pipe 213 and the valve core seat 22, and the sealing effect is better than the axial seal in the prior art.

[0047] In this embodiment, a positioning connection structure is further included between the first end surface 2111 and the valve core seat 22. The positioning connection structure includes a plurality of positioning posts 241 and a plurality of positioning holes 242, the connection seat 211 includes a plurality of positioning holes 242, and the valve core seat 22 includes a plurality of positioning posts 241, and the positioning posts 241 are plugged into the positioning holes 242 to achieve a positioning connection between the two.

[0048] In this embodiment, the pipeline structure includes a plurality of valve core seats 22 of different sizes. The plurality of valve core seats 22 of different sizes can be connected to the connection seat 211 replaceably. The valve core seats 22 of different sizes can be adapted to different valve cores 3, and have strong applicability.

[0049] In this embodiment, the pipeline assembly 21 is made of plastic, rubber or elastomeric polymer. For example, the connection seat 211 can be made of PE-RT and glass fiber, and the water inlet pipe 212 and the water outlet pipe 213 are made of PE-RT, that is, heat-resistant polyethylene (PE-RT), which is copolymerized by medium-density polyethylene and octene. The second end face 2112 of the connection seat 211 includes a corresponding notch, and the notch is correspondingly plugged into the water inlet pipe 212 or the water outlet pipe 213. The end of the water inlet pipe 212 or the water outlet pipe 213 is partially melted and combined with the notch of the connection seat 211, and the notch is correspondingly connected to the circular protrusion on the first end face 2111, so that the circular protrusion on the first end face 2111 forms a first water inlet 2121 of the water inlet pipe 212 and a second water inlet 2131 of the water outlet pipe 213 protruding on the first end face 2111. The valve core seat 22 is made of PA material (nylon).

[0050] The upper end of the main body 11 includes an installation chamber 111, the connection seat 211 is arranged in the installation chamber 111, the water inlet pipe 212 and the water outlet pipe 213 are at least partially arranged in the main body 11, and the ends of the water inlet pipe 212 and the water outlet pipe 213 are located outside the lower end of the main body 11. The faucet also includes a connection joint 6 and a water outlet connection pipe 7, the connection joint 6 can detachably connect the end of the water outlet pipe 213 and the water outlet connection pipe 7, the water outlet connection pipe 7 at least extends through the main body 11 and the faucet spout 12 and is connected to the end of the faucet spout 12. The connection between the faucet spout 12 and the main body 11 includes a passage 13 for the water outlet connection pipe 7 to pass through. The connection seat 211 is arranged at the bottom of the installation chamber 111. The bottom of the installation chamber 111 includes an installation opening 112, and the installation opening 112 allows the water inlet pipe 212 and the water outlet pipe 213 to pass through. The connecting seat 211, the valve core seat 22 and the valve core 3 are arranged in sequence from bottom to top in the installation chamber 111, the pressure cover 4 is fastened to the installation chamber 111 to press and fix the valve core 3, and the handle assembly 5 is connected to the valve shaft of the valve core 3. The valve core 3 can be controlled by rotating the handle assembly 5.

[0051] The connection joint 6 includes a connection body 61 and a connection buckle 62. The connection body 61 includes a connection opening 611, the upper part of the connection opening 611 forms a connection space 612, the lower part of the connection opening 611 forms an internal flow channel 613, two inlets 6131 of the internal flow channel 613 are respectively connected to the connection space 612, and the wall of the connection space 612 forms a buckle hole 6121. A first annular groove 2132 is formed at the end of the water outlet pipe 213, and a second annular groove 71 is formed at the end of the water outlet connecting pipe 7. The connecting buckle 62 includes a buckle ring 621 and an elastic buckle block 622 arranged on the buckle ring 621. The buckle ring 621 is wrapped around the first annular groove 2132 of the water outlet pipe 213 and the second annular groove 71 of the water outlet connecting pipe 7. The buckle ring 621, the end of the water outlet pipe 213 and the end of the water outlet connecting pipe 7 form a connecting head. The connecting head is suitable for being installed from the connecting opening 611 so that the elastic buckle block 622 is connected to the buckle hole 6121 and the end of the water outlet pipe 213 and the end of the water outlet connecting pipe 7 are respectively connected to the two inlets 6131 of the internal flow channel 613. In this embodiment, the buckle hole 6121 passes through the wall of the connection space 612, and the elastic buckle block 622 is exposed outside the connection body 61. When disassembly is required, it is only necessary to press the elastic buckle block 622 to separate the elastic buckle block 622 from the buckle hole 6121. During the installation process, when the elastic buckle block 622 is inserted into the connection opening 611, it is squeezed by the connection space 612 and bends inward until it is installed in the corresponding buckle hole 6121.

[0052] During the installation process, the lower ends of the water inlet pipe 212 and the water outlet pipe 213 of the pipeline structure are passed through the installation opening 112, and the lower ends of the water inlet pipe 212 and the water outlet pipe 213 pass through the installation opening 112 and then pass through the lower end of the main body 11, and the connecting seat 211 is correspondingly against the bottom of the installation chamber 111. Then, the valve core seat 22 is placed above the connecting seat 211, so that the positioning connection structure is aligned, and the circular protrusion and the connecting port 221 are engaged and connected. The valve core 3 is placed in the installation chamber 111, so that the water inlet and water outlet of the valve core 3 are fluidically connected with the valve core seat 22. Install the pressure cap 4, which is threadedly connected to the installation chamber 111, and the pressure cap 4 presses the valve core 3 to achieve a tight connection. Then install the handle assembly 5. Next, the outlet connection pipe 7 is connected to the end of the outlet pipe 213 through the connection joint 6, and the other end of the outlet connection pipe 7 is inserted into the main body 11 from the lower end of the main body 11, and connected to the end of the faucet spout 12 through the passage 13, and the end of the faucet spout 12 is connected to the aerator. Finally, the faucet is connected to the countertop as a whole, and the ends of the two water inlet pipes 212 are connected to the hot water source and the cold water source respectively.

[0053] See also Figure 8-9 , showing the second embodiment of the present invention. In this embodiment, the connection joint 6 includes a connection body 61 and two elastic buckles 63. The connection body 61 includes an internal flow channel 613, and the two inlets 6131 of the internal flow channel 613 face different directions respectively. A buckle hole 6132 is arranged inside the inlet 6131, and an operation button 6133 corresponding to the buckle hole 6132 is arranged outside the inlet 6131. ​​A first annular groove 2132 is formed at the end of the water outlet pipe 213, and a second annular groove 71 is formed at the end of the water outlet connecting pipe 7. The elastic buckle 63 includes a buckle ring portion 631 and an elastic buckle block 622 arranged on the buckle ring portion 631. The buckle ring portion 631 is rotatably sleeved on the first annular groove 2132 or the second annular groove 71. The inner wall of the inlet 6131 is provided with a guide groove 6134, and the circumferential width of the guide groove 6134 gradually increases in the direction pointing to the end of the inlet. The elastic buckle 63 includes a guide block 633 extending into the guide slot 6134, and the guide block 633 is used to guide and slide in the guide slot 6134 to deflect the elastic buckle 63 to guide the elastic buckle 63 to rotate until the elastic buckle block 622 corresponds to the buckle hole 6132. The operation button 6133 can be pressed to correspond to the elastic buckle block 622 so that the elastic buckle block 622 can be released from the buckle hole 6132.

[0054] In this embodiment, the guide block 633 includes two guide bevels 634, the axial front ends of the two guide bevels 634 intersect, and the distance between the axial rear ends of the two guide bevels 634 gradually increases. The guide block 633 is formed at the axial front end of the elastic buckle block 622, and the axial rear end of the elastic buckle block 622 can be buckled with the buckle hole 6132.

[0055] The above is only a preferred specific implementation of the present invention, but the design concept of the present invention is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the present invention within the technical scope disclosed by the present invention shall be deemed to infringe the protection scope of the present invention.

Claims

1. A faucet pipeline structure, characterized in that: It comprises a pipeline assembly and a valve core seat; the pipeline assembly comprises a connecting seat, at least one water inlet pipe and at least one water outlet pipe, the connecting seat is detachably connected to the valve core seat, one end of the water inlet pipe and one end of the water outlet pipe are integrally connected to the connecting seat; the water inlet pipe comprises a first water port formed on the connecting seat, the water outlet pipe comprises a second water port formed on the connecting seat, the first water port of the water inlet pipe and the second water port of the water outlet pipe are respectively connected to the fluid of the valve core seat, and the valve core seat is used to install the valve core.

2. A faucet pipe structure as claimed in claim 1, characterized in that: The connecting seat includes a first end face and a second end face; the valve core seat is detachably connected to the first end face, and the first water outlet of the water inlet pipe and the second water outlet of the water outlet pipe are respectively formed on the first end face; one end of the water inlet pipe and one end of the water outlet pipe are integrally connected to the second end face of the connecting seat.

3. A faucet pipe structure as claimed in claim 2, characterized in that: The first water inlet of the water inlet pipe and the second water inlet of the water outlet pipe are respectively protruded on the first end surface, and the valve core seat includes a plurality of connecting ports, which are respectively engaged and connected with the first water inlet of the water inlet pipe and the second water inlet of the water outlet pipe.

4. A faucet pipe structure as claimed in claim 3, characterized in that: A sealing ring is also sealed between the first water port of the water inlet pipe and the second water port of the water outlet pipe and the connecting port.

5. The pipe structure of a faucet as claimed in claim 3, characterized in that : A positioning connection structure is also included between the first end surface and the valve core seat.

6. A faucet pipe structure as claimed in claim 1 or 5, characterized in that: The pipeline structure comprises a plurality of valve core seats of different sizes; the plurality of valve core seats of different sizes are replaceably connected to the connecting seat.

7. The pipe structure of a faucet according to claim 1, characterized in that: The pipe assembly is made of plastic, rubber or elastomeric polymer.

8. A faucet, characterized in that: The invention comprises a pipeline structure as claimed in any one of claims 1 to 7.

9. A faucet according to claim 8, characterized in that: Also included is a faucet housing, the faucet housing including a main body and a faucet spout connected in one piece, the faucet spout being connected to the upper side of the main body; The upper end of the main body includes an installation chamber, the connecting seat is arranged in the installation chamber, the water inlet pipe and the water outlet pipe are at least partially arranged in the main body, and the ends of the water inlet pipe and the water outlet pipe are located outside the lower end of the main body; The faucet also includes a connection joint and a water outlet connection pipe, wherein the connection joint can detachably connect the end of the water outlet pipe and the water outlet connection pipe, and the water outlet connection pipe at least extends through the main body and the faucet spout and is connected to the end of the faucet spout.

10. A faucet according to claim 9, characterized in that: The connection between the faucet spout and the main body includes a passage opening for the water outlet connecting pipe to pass through.

11. A faucet according to claim 9, characterized in that: The connecting seat is arranged at the bottom of the installation chamber; the bottom of the installation chamber includes an installation opening, and the installation opening is used for the water inlet pipe and the water outlet pipe to pass through.

12. A faucet according to claim 9, characterized in that: It also includes a valve core and a pressure cover; the connecting seat, valve core seat and valve core are arranged in the installation chamber from bottom to top in sequence, and the pressure cover is tightly connected to the installation chamber to press and fix the valve core.

13. A faucet according to claim 9, characterized in that: The connecting joint comprises a connecting body and a connecting buckle; The connecting body comprises a connecting opening, the upper part of the connecting opening forms a connecting space, the lower part of the connecting opening forms an internal flow channel, two inlets of the internal flow channel are respectively connected to the connecting space, and the wall of the connecting space forms a buckle hole; A first annular groove is formed at the end of the water outlet pipe, and a second annular groove is formed at the end of the water outlet connecting pipe. The connecting buckle includes a buckle ring and an elastic buckle block arranged on the buckle ring. The buckle ring is sleeved around the first annular groove of the water outlet pipe and the second annular groove of the water outlet connecting pipe. The buckle ring, the end of the water outlet pipe and the end of the water outlet connecting pipe form a connecting head. The connecting head is suitable for being installed from the connecting opening so that the elastic buckle block is connected to the buckle hole corresponding to the buckle hole and the end of the water outlet pipe and the end of the water outlet connecting pipe are respectively connected to the two inlets of the internal flow channel.

14. A faucet according to claim 9, characterized in that: The connecting joint comprises a connecting body and two elastic buckles, the connecting body comprises an internal flow channel, and two inlets of the internal flow channel face in different directions respectively; A buckle hole is provided inside the inlet, and an operating button corresponding to the buckle hole is provided on the outside of the inlet. A first annular groove is formed at the end of the water outlet pipe, and a second annular groove is formed at the end of the water outlet connecting pipe. The elastic buckle includes a buckle ring portion and an elastic buckle block provided on the buckle ring portion, and the buckle ring portion is rotatably sleeved on the first annular groove or the second annular groove. A guide groove is provided on the inner wall of the inlet, and the circumferential width of the guide groove gradually increases in the direction pointing to the end of the inlet. The elastic buckle includes a guide block extending into the guide groove, and the guide block is used to guide the sliding in the guide groove so as to deflect the elastic buckle to guide the elastic buckle to rotate until the elastic buckle block corresponds to the buckle hole, and the operating button can be pressed to correspond to the elastic buckle block so that the elastic buckle block can be released from the buckle hole.

15. A faucet according to claim 14, characterized in that: The guide block includes two guide bevels, the axial front ends of the two guide bevels intersect, and the spacing between the axial rear ends of the two guide bevels gradually increases. The guide block is formed at the axial front end of the elastic buckle block, and the axial rear end of the elastic buckle block can be buckled and connected with the buckle hole.

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