A detachable waterway structure

Abstract

The utility model discloses a kind of dismounting type waterway structures, with body, body has a first seat body, a second seat body and two communicating pipe body and several water outlet pipe body, the front end and the rear end of pipe body are all with the inside wall of the shell of shower main body can be matched with the top tight structure, in two top tight structures, one top tight structure or two top tight structures are equipped with adjusting structure on pipe body, adjusting the spacing between two top tight structures;First seat body has water mixing valve installation chamber, adjusting water outlet passage, two water passage and water inlet passage in it;Second seat body has water distribution valve installation chamber, adjusting water inlet passage, several water outlet passages and water inlet passage in it.Compared with prior art, it is made by adopting split processing, easy to process, high yield, lighter in quality, low replacement cost, and disassembly and assembly are convenient, easy to maintain.

Description

Technical Field

[0001] This utility model relates to the field of sanitary ware, and in particular to a replaceable water circuit structure. Background Technology

[0002] The existing shower body has a shell and a water circuit structure installed inside the shell. This water circuit structure has a mixing valve installation chamber, a distributor valve installation chamber, a cold water inlet channel, a hot water inlet channel, a regulating water outlet channel, a regulating water inlet channel, two water passages, and several outlet channels. The mixing valve installation chamber is equipped with a mixing valve for regulating the temperature of the hot and cold water. The cold water inlet channel is connected to the cold water outlet in the wall, and the hot water inlet channel is connected to the hot water outlet in the wall. The cold water inlet channel is connected to the mixing valve installation chamber through one of its water passages, and the hot water inlet channel is connected to the mixing valve installation chamber through another water passage. One end of the regulating water outlet channel is connected to the mixing valve installation chamber, and the other end of the regulating water outlet channel is connected to the regulating water inlet channel. The regulating water inlet channel is connected to the distributor valve installation chamber, and each outlet channel is connected to the distributor valve installation chamber. The distributor valve is installed in the distributor valve installation chamber to switch the connection between the regulating water inlet channel and each outlet channel. The water system structure of this type of shower body is relatively heavy and costly due to its integral copper casting. Furthermore, the channels are not straight but curved, requiring high casting precision and resulting in a low yield rate. The weight of the water system also necessitates multiple screw posts for secure installation, leaving numerous screw heads visible on the surface. Over time, these screws can loosen, leading to instability. Additionally, the shower products offer diverse water outlet options. The housing has outlets corresponding to various water channels, including overhead spray, handheld showerhead, direct spray, and spray gun outlets. Users choose shower bodies with two, three, or four outlets depending on their needs. This necessitates manufacturers producing different water system structures to meet varying customer requirements, resulting in high replacement costs.

[0003] In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Summary of the Invention

[0004] The purpose of this utility model is to provide a replaceable water system structure to solve the problems of high cost, low yield and unstable installation caused by the integrated processing of water system structures in the prior art.

[0005] This utility model discloses a replaceable water circuit structure, comprising a main body, a mixing valve installation chamber, a dividing valve installation chamber, an inlet channel, a regulating water outlet channel, a regulating water inlet channel, two water passages, and several outlet channels. The main body has two inlet channels, one for cold water and the other for hot water. The main body also includes a first seat, a second seat, two connecting pipes, and several outlet pipes. Both the first and second seats are pipes, arranged alternately on the left and right sides. The front and rear ends of each pipe have a clamping structure that fits against the inner wall of the shower body's housing. One or both clamping structures are provided with an adjustment structure on the pipe to adjust the distance between them.

[0006] The first housing has the aforementioned mixing valve installation chamber, the aforementioned regulating water outlet channel, two aforementioned water passages, and one aforementioned water inlet channel; the second housing has the aforementioned water distribution valve installation chamber, the aforementioned regulating water inlet channel, several aforementioned outlet channels, and one aforementioned water inlet channel; the aforementioned regulating water inlet channel and regulating water outlet channel are connected by the aforementioned connecting pipe, and the two ends of the connecting pipe are respectively inserted and sealed with the regulating water inlet channel and the regulating water outlet channel; the water inlet channel of the second housing is connected to one of the water passages of the first housing through the aforementioned connecting pipe, and the two ends of the connecting pipe are respectively inserted and sealed with the water inlet channel of the second housing and one of the water passages of the first housing.

[0007] Each water outlet pipe body corresponds to each water outlet channel. The first end of the water outlet pipe body is connected to the water outlet channel, and the second end is opposite to the water outlet of the shower body. In each water outlet pipe body, the second end of one water outlet pipe body has a water outlet seat that extends out of the water outlet pipe body. The water outlet seat has a top spray water outlet channel with the first end connected to the water outlet pipe body and the second end extending upward to the outside of the top surface of the water outlet seat. The water outlet seat is equipped with an installation structure for disassembly and installation with the shower body shell.

[0008] The first seat has a front chamber 1 with its front end facing backwards, which serves as the installation chamber for the mixing valve. The rear end of the first seat has a rear chamber 1 with its rear end facing forwards, which serves as the water inlet channel for the first seat. The regulating water outlet channel and the two water passages are located between the front chamber 1 and the rear chamber 1. The second seat has a front chamber 2 with its front end facing backwards, which serves as the installation chamber for the water distribution valve. The rear end of the second seat has a rear chamber 2 with its rear end facing forwards, which serves as the water inlet channel for the second seat. The regulating water inlet channel and each water outlet channel are located between the front chamber 2 and the rear chamber 2.

[0009] The first seat has two side openings protruding from its side wall facing the second seat, spaced apart. One side opening is connected to the mixing valve installation chamber via a regulating water outlet channel, and the other side opening is connected to the mixing valve installation chamber via a water channel. The outer wall of the second seat has several side pipes. Two of the side pipes are arranged laterally opposite to the two side openings, and the remaining side pipes are aligned and connected to each water outlet channel. The side openings are connected to the side pipes via connecting pipes. Both ends of the connecting pipes are fitted with sealing rings that are tightly sealed to the side openings and side pipes respectively. The side pipes connected to each water outlet channel are the water outlet pipes.

[0010] The aforementioned water outlet seat has a threaded tube and a mounting base. The first end of the threaded tube extends into the side tube body and is sealed and fitted with the side tube body through a sealing ring fitted on the outside of the threaded tube. The aforementioned mounting base has a horizontal part and a vertical part perpendicular to the top of the horizontal part. The horizontal part has a horizontal channel, and the vertical part has a vertical channel. The first end of the vertical channel is connected to the horizontal channel, and the upper part of the vertical channel extends to the outside of the top surface of the vertical part. The upper end of the vertical channel has an internal thread. The second end of the horizontal channel extends away from the direction of the vertical channel and extends to the outside of the end of the horizontal part. The second end of the threaded tube extends into the second end of the horizontal channel and is threaded and connected to the horizontal part. The aforementioned mounting structure is provided on the vertical part. The aforementioned threaded tube, horizontal channel, and vertical channel constitute the aforementioned top spray water outlet channel.

[0011] A pair of lugs are provided on the outer side wall of the vertical part. The lugs have through holes that run vertically through them. The through holes have internal threads. The two lugs constitute the mounting structure.

[0012] The outer wall of the rear end or the outer wall of the front end of the aforementioned tube body is provided with a tight-fitting ring in the form of a closed ring. Correspondingly, the outer wall of the front end or the outer wall of the front end of the aforementioned tube body has an external thread structure extending in the front-rear direction. A threaded sleeve is fitted outside the tube body at the external thread structure. The threaded sleeve has an internal thread that engages with the external thread structure. The tight-fitting ring is one of its tightening structures, and the threaded sleeve is another tightening structure. The internal thread and the external thread structure constitute the aforementioned adjustment structure.

[0013] The rear side of the fitting ring located on the outer wall of the rear end of the tube has two horizontally opposite notches recessed forward.

[0014] Both ends of the aforementioned tube are fitted with threaded sleeves, and both ends of the tube have external thread structures extending in the front-to-back direction on their outer walls. The threaded sleeves have internal threads that engage with the external thread structures. The threaded sleeve on the front side is one tightening structure, and the threaded sleeve on the rear side is another tightening structure. The internal and external thread structures constitute the aforementioned adjustment structure.

[0015] This utility model discloses a replaceable water circuit structure. Because the main body is made of multiple parts processed separately, the water circuit structure is easy to process and has a high yield rate. Moreover, the main body is not a monolithic block structure, so it is lighter in weight. Furthermore, the separate setting of the first and second seats means that when the shower body changes to different water outlet modes, only the second seat needs to be replaced, resulting in low replacement costs and low mold production costs. At the same time, the combination of the tightening structure and the adjustment structure allows the first and second seats to be installed in the shell without screws, making disassembly and assembly convenient and easy to maintain, and making the shower body shell more aesthetically pleasing. In addition, the combination of the water outlet seat and the installation structure facilitates the installation of the top spray and also makes the installation of the top spray more stable. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a perspective view of the connecting pipe body in this utility model;

[0018] Figure 3 This is a perspective view of the water outlet base in this utility model;

[0019] Figure 4 This is the present utility model. Detailed Implementation

[0020] This utility model provides a replaceable waterway structure, such as Figure 1-3As shown, the shower body includes a main body, a mixing valve installation chamber, a dividing valve installation chamber, an inlet channel, a regulating water outlet channel, a regulating water inlet channel, two water passages, and several outlet channels. There are two inlet channels: one for cold water and the other for hot water. The main body has a first seat 1, a second seat 2, two connecting pipes 3, and several outlet pipes. Both the first seat 1 and the second seat 2 are pipes, arranged alternately on the left and right sides. The first seat 1 is located to the right of the second seat 2. The front and rear ends of the pipes have clamping structures that fit against the inner wall of the shower body's housing. One of the clamping structures has an adjustment mechanism on the pipe to adjust the distance between the two clamping structures. The clamping structure on the front side is called the front clamping structure, and the clamping structure on the rear side is called the rear clamping structure. This embodiment... Taking the adjustment structure on the tube body to adjust the distance between the two tightening structures as an example, specifically, the outer rear wall of the first seat 1 and the outer rear wall of the second seat 2 are both provided with a closed-loop structure of fitting rings 11 and 21. This fitting ring is the rear tightening structure. Correspondingly, the outer front wall of the first seat 1 and the outer front wall of the second seat 2 have an external thread structure extending in the front-back direction. That is, the outer front wall of the first seat 1 and the outer front wall of the second seat 2 have an external thread of a certain length. And the outer front wall of the first seat 1 and the outer front wall of the second seat 2 are both fitted with a threaded sleeve 4 that can move in the front-back direction. The threaded sleeve 4 is a hollow cylindrical sleeve. The inner side wall of the threaded sleeve 4 has an internal thread that engages with the external thread. The threaded sleeve 4 is the front tightening structure. The internal thread and the external thread structure constitute the adjustment structure. In application, the length of the pipe should be slightly smaller, equal to, or slightly larger than the distance between the front and rear inner walls of the shower body housing. When the length of the pipe is slightly less than or equal to the distance between the front and rear inner walls of the housing, the pipe is directly placed into the housing, and the clamping ring is pressed against the rear inner wall of the housing. The screw sleeve 4 is then rotated to move forward, pressing against the front inner wall of the housing. In this way, the entire pipe is clamped by the front and rear inner walls of the housing. If the length of the pipe is slightly greater than the distance, the pipe can be installed into the housing simply by tilting it slightly and inserting its rear end into the rear mounting hole. In this invention, the clamping ring can also be located on the front outer wall of the first seat and the front outer wall of the second seat. Correspondingly, the external thread structure and the screw sleeve are located at the rear end of the first seat and the rear end of the second seat.Furthermore, both the front and rear tightening structures are equipped with adjustment mechanisms on the pipe body to adjust the distance between the two tightening structures. Specifically, there is no need to set a clamping ring. Threaded sleeves are fitted on the front and rear ends of both the first and second seats. The outer walls of the front and rear ends of both the first and second seats are provided with external threads extending in the front-rear direction. The threaded sleeves have internal threads that engage with the external threads. The threaded sleeve on the front side is the front tightening structure, and the threaded sleeve on the rear side is the other tightening structure. The internal and external threads constitute the adjustment structure. In use, tightening the threaded sleeves at both ends will clamp the two threaded sleeves between the front and rear side walls of the shower body shell, achieving the fixed installation of the pipe body. This method also achieves the installation effect of the pipe body.

[0021] The first seat 1 has the aforementioned mixing valve mounting chamber, the aforementioned regulating water outlet channel, two aforementioned water passages, and one aforementioned water inlet channel. Specifically, the front end of the first seat 1 has a concave front cavity (not shown in the figure) facing backward. The concave front cavity is a cylindrical structure and serves as the mixing valve mounting chamber, providing a space for the mixing valve. The rear end of the first seat 1 has a concave rear cavity extending in the front-rear direction. The concave rear cavity is also cylindrical and serves as the water inlet channel for the first seat 1. In use, the angle valve on the wall extends into the rear cavity to allow external water to flow into the first seat 1. The regulating water outlet channel and the two water passages are located between the concave front cavity and the rear cavity. The water passages are arranged alternately on the left and right sides. The bottom of the rear cavity has a water passage on the right side. The rear opening is connected to the front concave cavity. A right opening is provided on the bottom of the cavity, which is connected to the water passage on the right side. The rear end of the water passage on the left side extends to the left side wall of the rear end of the first seat. Two side pipe openings 12 are provided on the side wall of the first seat 1 facing the second seat 2 (i.e., the left side). The rear side pipe opening 12 is connected to the rear end of the water passage on the left side. The rear side pipe opening 12 is connected to the mixing valve installation chamber through the water passage on the left side. The regulating water outlet channel is located above the water passage. One end of the regulating water outlet channel extends to the front chamber and is connected to the front chamber. The other end extends to the left to the side pipe opening on the front side and is connected to the side pipe opening 12. That is, the front side pipe opening 12 is connected to the mixing valve installation chamber through the regulating water outlet channel.

[0022] The second seat 2 has the aforementioned water distribution valve installation chamber, the aforementioned regulating water inlet channel, several aforementioned water outlet channels, and one aforementioned water inlet channel. Specifically, the front end of the second seat 2 has a rearward recessed front chamber two, which is a cylindrical structure. This front chamber two serves as the water distribution valve installation chamber, allowing the installation of a water distribution valve to control the flow of the shower body, shut off the water supply, and switch between different water outlets. The rear end of the second seat 2 has a frontward recessed rear chamber two, which is also a cylindrical structure. This rear chamber two serves as the water inlet channel for the second seat 2. A section extending to the right side wall of the rear chamber two is located on its side wall. In use, an angle valve on the wall extends into this rear chamber two to allow external water to flow in. Water flows into the second seat 2 and flows out from the right side of the second seat 2 through the rear chamber 2. The water inlet channel and each water outlet channel are located between the front chamber 2 and the rear chamber 2. Specifically, the outer wall of the second seat 2 has several side tubes 22 protruding outward at the part between the front chamber 2 and the rear chamber 2. Two side tubes are arranged horizontally opposite to the two side pipe openings, and the remaining side tubes are aligned and connected to each water outlet channel. That is, among the side tubes 22, two side tubes are located on the right side wall of the second seat 2 and are arranged horizontally opposite to the two side pipe openings 12 on the left side of the first seat 2. The number of remaining side tubes corresponds to the number of water outlet channels. That is, the side tubes connected to each water outlet channel are the water outlet tubes. In this embodiment, there are three water outlet channels, and correspondingly, three side pipes are provided. The three side pipes can be distributed on the left side wall, the bottom surface, and the right side wall of the second seat.

[0023] The regulating water inlet channel and the regulating water outlet channel are connected by a connecting pipe 3, and the two ends of the connecting pipe 3 are respectively inserted and sealed with the regulating water inlet channel and the regulating water outlet channel. Specifically, the connecting pipe 3 is a rigid pipe, preferably an injection-molded pipe. The outer walls of the two ends of the connecting pipe 3 are recessed with closed annular grooves 31, and O-rings are embedded in these closed annular grooves 31. The O-rings protrude slightly from the closed annular grooves 31. During installation, the two ends of the connecting pipe 3 are directly inserted into the side pipe opening 12 and the side pipe body 22 on the front side, and the O-rings are used to seal the connecting pipe 3 with the side pipe opening and the side pipe body. With this connection method, the first base and the second base can be connected and installed by simply inserting and removing the connecting pipe 3, which is simple to install.

[0024] The water inlet channel of the second seat 2 is connected to one of the water passages (the water passage on the left side) of the first seat 1 through another connecting pipe 3, and the two ends of the connecting pipe are respectively inserted and sealed with the water inlet channel of the second seat and the water passage of the first seat; specifically, the two ends of the connecting pipe 3 are directly inserted into the side pipe port 12 and the side pipe body 22 located on the rear side, and the connecting pipe 3 is sealed with the side pipe port and the side pipe body using O-rings. The rear chamber of the second seat is connected to the front chamber of the first seat through the side pipe body 22, the side pipe port 12 and the water passage on the left side.

[0025] In each water outlet pipe, the first end of the water outlet pipe is connected to the water outlet channel, and the second end is positioned opposite the water outlet of the shower body. That is, a water outlet structure for water outlet is installed on the second end of the water outlet pipe. This water outlet structure includes an overhead spray nozzle, a handheld shower head, a spray gun, or a straight water outlet. In this embodiment, there are three water outlet structures, such as an overhead spray nozzle, a handheld shower head, and a straight water outlet. Among the water outlet pipes, the water outlet pipe for connecting the handheld shower head is located on the bottom surface of the second seat, and the water outlet pipe for the straight water outlet is located on the left side of the second seat. To facilitate the design of the straight water outlet on the shower body, a connecting pipe 5 can be installed between the straight water outlet and the water outlet pipe on the left side of the second seat for the overhead spray nozzle.

[0026] The second end of the shower body has a water outlet seat 6 with one end extending out of the water outlet pipe. The water outlet seat 6 has a top spray water outlet channel with one end connected to the water outlet pipe and the second end extending upwards to the outside of the top surface of the water outlet seat. The water outlet seat is equipped with an installation structure for detaching and installing with the shower body housing. Specifically, the water outlet seat 6 has a threaded pipe 61 and a mounting base 62. The first end of the threaded pipe 61 extends into the side pipe body and is sealed to the side pipe body through a sealing ring fitted outside the threaded pipe. That is, for the rational layout of the second seat body, the three side pipes on the right side of the second seat body are integrally formed and connected together. The side tube body connected to the threaded tube is located in the middle. The threaded tube 61 has a tightening head (not shown in the figure), a threaded head (not shown in the figure), and a flexible hose that is easy to bend between the tightening head and the threaded head. The hose is a common type of pipe used in bathroom showers and can be a corrugated pipe, stainless steel hose, etc. Both the tightening head and the threaded head are stainless steel pipe bodies. The outer wall of the tightening head has a closed-ring groove, and a sealing ring is embedded in this closed-ring groove. The tightening head extends into the side tube body and is sealed with the side tube body through the sealing ring. The sealing ring is an O-ring. The outer wall of the threaded head has external threads (not shown in the figure).

[0027] The mounting base 62 has a horizontal section 621 and a vertical section 622 perpendicular to the top of the horizontal section. Specifically, on the left side of the top surface of the vertical section 622, the horizontal section 621 has a horizontal channel, and the vertical section 622 has a vertical channel. The first end of the vertical channel is connected to the first end of the horizontal channel, and the upper part of the vertical channel extends to the outside of the top surface of the vertical section. The horizontal section is horizontally arranged from left to right and has a hollow tube structure. The left side of the horizontal section is closed, and the hollow cavity of the horizontal section is the horizontal channel. The vertical section has a hollow tube structure open at both ends, and the lower end of the vertical section is connected to the top left side of the horizontal section. The hollow chamber of the vertical section is the vertical channel. The second end of the horizontal channel extends away from the vertical channel and to the outside of the end of the horizontal section, that is, the right side of the horizontal section is open. The second end of the threaded tube extends into the second end of the horizontal channel and is threadedly connected to the horizontal section. That is, the threaded head extends into the right end port of the horizontal section 621. The right end port of the horizontal channel has an internal thread, that is, the right end port of the horizontal section 621 has this internal thread. The external thread of the threaded head is threadedly connected to the internal thread of the horizontal section. The threaded tube, the horizontal channel and the vertical channel constitute the top spray water outlet channel.

[0028] The mounting structure is provided on the vertical part 622, that is, a pair of lugs 623 protrude from the outer side wall of the vertical part 622. Each lug 623 has a through hole extending vertically, and this through hole has an internal thread. The two lugs constitute the mounting structure. In application, as... Figure 4 As shown, a through hole 101 needs to be correspondingly opened on the crossbar 100 on the top surface of the shower body housing. During installation, the mounting base 62 is placed below the crossbar 100, and a screw is passed through the through hole 101 and screwed into the through hole to connect with it, thus installing the mounting base 62. With this structure, the mounting base is installed on the housing without any exposed screws. The locking mechanism of the mounting base also makes the connection between the shower column and the mounting base more secure and stable. At the same time, the threaded head of the threaded tube 61 facilitates the disassembly and assembly of the threaded tube and the mounting base. Combined with the flexible hose, it is easy to connect the threaded tube to the side tube. Finally, the tightening head and the side tube are tightened together so that the threaded tube can be bent and easily connected to the side tube, thus making the installation of the entire threaded tube relatively simple.

[0029] The replaceable waterway structure of this utility model has the following beneficial effects:

[0030] 1. The entire body is divided into two bases and multiple pipes, which are processed separately, making the water channel structure easy to process and with a high yield. In addition, only the base is made of cast structure, making it lighter in weight.

[0031] 2. The base and the pipe body are connected by a plug-in joint, and the pipe body is connected to the pipe body by a plug-in or screw-in joint, so that the entire water circuit structure is a modular structure, which is easy to maintain and replace.

[0032] 3. Due to the assembly and disassembly of the base and the pipe, if the water outlet mode of the water circuit structure needs to be changed, it is not necessary to replace the entire water circuit structure. Only the second base needs to be replaced. The replacement cost is low, avoiding resource waste, facilitating function replacement, and the mold production cost is low.

[0033] 4. The combination of a tightening structure and an adjusting structure allows the first and second seats to be installed inside the housing without screws, making disassembly and assembly convenient, easy to maintain, and making the shower body housing more aesthetically pleasing.

[0034] 5. The combination of the water outlet base and the installation structure facilitates the installation of the overhead spray and makes the installation of the overhead spray more stable.

[0035] In this invention, to ensure a more stable installation of the first and second seats, two horizontally opposite recesses 111 and 211 are recessed forward on the rear side of the fitting rings 11 and 21. Correspondingly, a protruding strip 102 extending in the left-right direction and engaging with the recesses is provided on the rear inner side wall of the housing. The cooperation of the recesses and the protruding strip can guide the installation of the first and second seats on the one hand, and prevent the first and second seats from falling downwards during installation on the other hand.

[0036] The product form of this utility model is not limited to the illustrations and embodiments in this case. Any appropriate changes or modifications made to it based on similar ideas should be considered as not departing from the patent scope of this utility model.

Claims

1. A replaceable water circuit structure, comprising a main body, a mixing valve mounting chamber, a dividing valve mounting chamber, an inlet channel, a regulating water outlet channel, a regulating water inlet channel, two water passages, and several outlet channels, wherein there are two inlet channels, one of which is a cold water inlet channel and the other is a hot water inlet channel; characterized in that: The main body has a first seat, a second seat, two connecting pipes, and several water outlet pipes. The first seat and the second seat are both pipes and are arranged alternately on the left and right. The front end and the rear end of the pipes have a clamping structure that can fit against the inner wall of the shower body shell. One or both clamping structures are provided with an adjustment structure on the pipe to adjust the distance between the two clamping structures. The first housing has the aforementioned mixing valve installation chamber, the aforementioned regulating water outlet channel, two aforementioned water passages, and one aforementioned water inlet channel; the second housing has the aforementioned water distribution valve installation chamber, the aforementioned regulating water inlet channel, several aforementioned outlet channels, and one aforementioned water inlet channel; the aforementioned regulating water inlet channel and regulating water outlet channel are connected by the aforementioned connecting pipe, and the two ends of the connecting pipe are respectively inserted and sealed with the regulating water inlet channel and the regulating water outlet channel; the water inlet channel of the second housing is connected to one of the water passages of the first housing through the aforementioned connecting pipe, and the two ends of the connecting pipe are respectively inserted and sealed with the water inlet channel of the second housing and one of the water passages of the first housing. Each water outlet pipe body corresponds to each water outlet channel. The first end of the water outlet pipe body is connected to the water outlet channel, and the second end is opposite to the water outlet of the shower body. In each water outlet pipe body, the second end of one water outlet pipe body has a water outlet seat that extends out of the water outlet pipe body. The water outlet seat has a top spray water outlet channel with the first end connected to the water outlet pipe body and the second end extending upward to the outside of the top surface of the water outlet seat. The water outlet seat is equipped with an installation structure for disassembly and installation with the shower body shell.

2. The replaceable waterway structure according to claim 1, characterized in that: The first seat has a front chamber 1 with its front end facing backwards, which serves as the installation chamber for the mixing valve. The rear end of the first seat has a rear chamber 1 with its rear end facing forwards, which serves as the water inlet channel for the first seat. The regulating water outlet channel and the two water passages are located between the front chamber 1 and the rear chamber 1. The second seat has a front chamber 2 with its front end facing backwards, which serves as the installation chamber for the water distribution valve. The rear end of the second seat has a rear chamber 2 with its rear end facing forwards, which serves as the water inlet channel for the second seat. The regulating water inlet channel and each water outlet channel are located between the front chamber 2 and the rear chamber 2.

3. A replaceable waterway structure according to claim 1 or 2, characterized in that: The first seat has two side openings protruding from its side wall facing the second seat, spaced apart. One side opening is connected to the mixing valve installation chamber via a regulating water outlet channel, and the other side opening is connected to the mixing valve installation chamber via a water channel. The outer wall of the second seat has several side pipes. Two of the side pipes are arranged laterally opposite to the two side openings, and the remaining side pipes are aligned and connected to each water outlet channel. The side openings are connected to the side pipes via connecting pipes. Both ends of the connecting pipes are fitted with sealing rings that are tightly sealed to the side openings and side pipes respectively. The side pipes connected to each water outlet channel are the water outlet pipes.

4. The replaceable waterway structure according to claim 3, characterized in that: The aforementioned water outlet seat has a threaded tube and a mounting base. The first end of the threaded tube extends into the side tube body and is sealed and fitted with the side tube body through an O-ring that is fitted over the threaded tube. The aforementioned mounting base has a horizontal section and a vertical section perpendicular to the horizontal section. The horizontal section has a horizontal channel, and the vertical section has a vertical channel. The first end of the vertical channel is connected to the first end of the horizontal channel, and the upper part of the vertical channel extends to the outside of the top surface of the vertical section. The upper end of the vertical channel has an internal thread. The second end of the horizontal channel extends away from the direction of the vertical channel and extends to the outside of the end of the horizontal section. The second end of the threaded tube extends into the second end of the horizontal channel and is threadedly connected to the horizontal section. The aforementioned mounting structure is provided on the vertical section. The aforementioned threaded tube, horizontal channel, and vertical channel constitute the aforementioned top spray water outlet channel.

5. The replaceable waterway structure according to claim 4, characterized in that: The aforementioned threaded tube has a tightening head, a threaded head, and a flexible hose located between the tightening head and the threaded head. The tightening head is fitted with the aforementioned O-ring seal, and the threaded head extends into the second end of the transverse channel. The outer wall of the threaded head is provided with external threads.

6. The replaceable waterway structure according to claim 4, characterized in that: A pair of lugs are provided on the outer side wall of the vertical part. The lugs have through holes that run vertically through them. The through holes have internal threads. The two lugs constitute the mounting structure.

7. The replaceable waterway structure according to claim 1, characterized in that: The outer wall of the rear end or the outer wall of the front end of the aforementioned tube body is provided with a tight-fitting ring in the form of a closed ring. Correspondingly, the outer wall of the front end or the outer wall of the front end of the aforementioned tube body has an external thread structure extending in the front-rear direction. A threaded sleeve is fitted outside the tube body at the external thread structure. The threaded sleeve has an internal thread that engages with the external thread structure. The tight-fitting ring is one of its tightening structures, and the threaded sleeve is another tightening structure. The internal thread and the external thread structure constitute the aforementioned adjustment structure.

8. A replaceable waterway structure according to claim 7, characterized in that: The rear side of the fitting ring located on the outer wall of the rear end of the tube has two horizontally opposite notches recessed forward.

9. A replaceable waterway structure according to claim 1, characterized in that: Both ends of the aforementioned tube are fitted with threaded sleeves, and both ends of the tube have external thread structures extending in the front-to-back direction on their outer walls. The threaded sleeves have internal threads that engage with the external thread structures. The threaded sleeve on the front side is one tightening structure, and the threaded sleeve on the rear side is another tightening structure. The internal and external thread structures constitute the aforementioned adjustment structure.

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