Water purifier with integrated waterway

Abstract

This invention relates to the technical field of water purifiers, and proposes a water purifier with an integrated water circuit, including a body and a filter assembly disposed within the body. The body integrates several independent and spaced-apart water channels, which are integrally formed with the body and constitute a non-removable whole. The inlet and outlet ends of the filter assembly are connected to the corresponding water channels, and the filter assembly achieves one or more stages of filtration through these water channels. The integration of several independent and spaced-apart water channels within the body, and the integral, non-removable structure of the water channels and body, solves the problem of traditional decentralized pipe connections. This reduces the number of leak points and lowers the risk of leakage. Traditional water purifiers rely on numerous quick-connect fittings, screw rings, and sealing rings for pipe connections; aging, loosening, or failure of these components can all cause leaks. The integrally formed water channels and body have no removable connection points, reducing the number of sealing connections and minimizing the risk of leakage.

Description

Technical Field

[0001] This utility model relates to the technical field of water purifiers, specifically to a water purifier with an integrated water circuit. Background Technology

[0002] Water purifiers have become an important device for modern families to ensure healthy drinking water. Their core principle is to gradually filter raw water through multiple stages of filters (such as PP cotton, activated carbon, and RO reverse osmosis membranes) connected in series or parallel, ultimately producing purified water. The most crucial components inside a water purifier are the filter cartridges and the piping that works with them. The piping typically uses PE flexible hoses or rigid pipes, and is connected and secured using numerous quick-connect fittings, screw rings, and sealing rings. For example, Chinese Patent Publication No. CN222871566U discloses a filter cartridge installation structure for a water purifier.

[0003] This traditional decentralized piping connection scheme has the following inherent drawbacks: 1. Numerous pipe joints and sealing points pose potential leak hazards. Any aging, loosening, or failure of the sealing ring at any joint could lead to leaks in the entire unit.

[0004] 2. The assembly process is complex and production efficiency is low. The assembly process requires workers to manually cut, bend, and connect a large number of water pipes, which is time-consuming and labor-intensive, has a low degree of automation, and requires a high level of skill from the operators, making it difficult to ensure product consistency.

[0005] 3. Loose structure and large size. The intricate piping occupies a large amount of space inside the machine, resulting in a loose overall layout and making it difficult to achieve miniaturization. Utility Model Content

[0006] This invention proposes a water purifier with an integrated water system. The machine body integrates several independent and spaced-apart water channels, and the water channels are integrally molded and non-removable from the machine body, solving the problem of traditional decentralized pipe connections. This helps reduce leakage points and lowers the risk of leaks.

[0007] A water purifier with an integrated water circuit designed for this purpose includes a body and a filter assembly installed inside the body. The body integrates several independent and spaced water channels, which are integrally formed with the body and constitute an unremovable whole. The inlet and outlet of the filter assembly are connected to the corresponding water channels, and the filter assembly achieves one or more stages of filtration through the water channels. The plurality of water channels are arranged horizontally on the machine body, forming a raw water input channel for conveying raw water, a purified water output channel for outputting purified water, and a pure water output channel for outputting pure water. The raw water input channel, the purified water output channel, and the pure water output channel operate independently and do not interfere with each other.

[0008] Several water channels are arranged at intervals along the vertical direction of the machine body.

[0009] The water channel includes a raw water input channel, and the filter assembly includes a pre-filter assembly. The inlet end of the raw water input channel is used to connect to the raw water connector, and the outlet end of the raw water input channel is connected to the liquid inlet end of the pre-filter assembly.

[0010] The water channel also includes a purified water output channel, the outlet of which is used to connect to a purified water connector, and the inlet of which is connected to the liquid outlet of the pre-filter assembly. The purified water output channel is located below the raw water input channel.

[0011] The machine body is equipped with an inlet solenoid valve for switching the water flow and a booster pump for increasing water pressure. The filtration assembly includes an RO filtration assembly. The first end of the inlet solenoid valve is connected to the purified water output channel, the second end of the inlet solenoid valve is connected to the input end of the booster pump, and the output end of the booster pump is connected to the liquid inlet end of the RO filter component. When the inlet solenoid valve is closed, the liquid enters the purified water output channel through the raw water input channel and the pre-filter assembly. When the inlet solenoid valve is opened, the liquid enters the RO filter assembly through the raw water input channel, the pre-filter assembly, the inlet solenoid valve, and the booster pump.

[0012] The filter assembly also includes a post-filter assembly, and the water channel also includes a filter channel for connecting an external pressure tank, with one end of the filter channel for connecting to the pressure tank connector. The liquid outlet of the RO filter assembly and the liquid inlet of the post-filter assembly are respectively connected to the filter channel; the liquid enters the filter channel along the liquid outlet of the RO filter assembly and enters the post-filter assembly under the action of the pressure tank. The filtration channel is located below the purified water output channel.

[0013] The machine body is equipped with a live water channel, and a water pump is installed on the live water channel. The water pump input end is connected to the filter channel, and the water pump output end is connected to the booster pump input end. When the water pump starts, the water stored in the filter channel is returned to the RO filter module via the water pump and the booster pump.

[0014] The water channel also includes a pure water output channel. The outlet end of the pure water output channel is used to connect to a pure water connector, and the inlet end of the pure water output channel is connected to the outlet end of the post-filter assembly. The water channel also includes a wastewater discharge channel. The outlet end of the wastewater discharge channel is used to connect to a drain connector, and the inlet end of the wastewater discharge channel is connected to the drain end of the RO filter component. The machine body is equipped with a wastewater solenoid valve for opening and closing the inlet end of the wastewater discharge channel. When the wastewater solenoid valve opens the inlet end of the wastewater discharge channel, the wastewater in the RO filter component during the filtration process is discharged out of the machine body along the wastewater discharge channel. The raw water input channel, pure water output channel, purified water output channel, wastewater discharge channel, and filtration channel are arranged at intervals from top to bottom; The pre-filter, RO filter, and post-filter are arranged in a front-middle-rear interval along the front-to-back direction of the machine body.

[0015] The machine body is equipped with a three-way valve. The first end of the three-way valve is connected to the second end of the water inlet solenoid valve, the second end of the three-way valve is connected to the input end of the booster pump, and the third end of the three-way valve is connected to the output end of the water pump. The filter channel is provided with a bypass branch for connecting to the water pump input end, and the bypass branch is integrally formed with the side of the filter channel.

[0016] The body also integrates several independent and spaced-apart pipe connection parts. The pipe connection parts are used to connect pipe joints. The outer periphery of the pipe connection parts is provided with arc-shaped blocks. A guide groove is formed between the outer periphery of the pipe connection parts and the arc-shaped blocks to guide the pipe joints into the pipe connection parts. The arc-shaped stop block at least partially covers the pipe joint to form a protective structure for the pipe joint.

[0017] The beneficial technical effects of this utility model are as follows: The machine integrates several independent and spaced-apart water channels, which are integrally molded and non-removable from the body, solving the problem of traditional decentralized pipe connections. This reduces the number of leak points and lowers the risk of leakage. Traditional water purifiers rely on numerous quick-connect fittings, screw rings, and sealing rings for pipe connections. Aging, loosening, or failure of these components can all cause leaks. In contrast, the integrally molded water channels have no removable connection points to the body, resulting in fewer sealing connections, reducing the risk of leaks, and improving the overall water safety of the machine. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the internal structure of the body according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the machine body from another angle according to an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the internal body of an embodiment of the present invention.

[0021] Figure 4This is a three-dimensional structural diagram of the body of an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the structure of a water purification output according to an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the structure of a pure water output and wastewater discharge of an RO filter component according to an embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the structure of an RO filter assembly according to an embodiment of the present invention, in which the water pump is started when the RO filter assembly is not used for a long period of time, and the water stored in the filter channel re-enters the RO filter assembly for filtration. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0026] See Figures 1-7 A water purifier with an integrated water circuit includes a body 1 and a filter assembly disposed within the body 1. The body 1 integrates several independent and spaced water channels 2. The water channels 2 and the body 1 are integrally formed and constitute an unremovable whole. The inlet and outlet ends of the filter assembly are connected to the corresponding water channels 2. The filter assembly achieves one or more stages of filtration through the water channels 2. The plurality of water channels 2 are arranged horizontally on the body 1, and sequentially form a raw water input channel 201 for conveying raw water, a purified water output channel 202 for outputting purified water, and a pure water output channel 203 for outputting pure water. The raw water input channel 201, the purified water output channel 202, and the pure water output channel 203 operate independently and do not interfere with each other.

[0027] The main body 1 integrates several independent and spaced-apart water channels 2, and the water channels 2 and the main body 1 adopt a one-piece molded, non-removable structure, solving the problem of traditional decentralized pipe connections. This helps reduce the number of leaking connection points and lowers the risk of leakage. Traditional water purifiers rely on a large number of quick-connect fittings, screw rings, and sealing rings to connect the pipes. The aging, loosening, or failure of these components can all cause leaks. However, the one-piece molded water channels 2 and the main body 1 have no removable connection points, reducing the number of sealing connections, reducing the risk of leakage, and improving the overall water safety of the machine. It significantly simplifies the assembly process. Traditional assembly requires workers to manually cut, bend, and connect a large number of water pipes, which is not only time-consuming and labor-intensive, but also depends on the worker's skill level and can easily lead to poor product consistency. Since the water channels 2 are molded integrally with the main body 1, it is not necessary to install a large number of water channels 2 on the main body 1, reducing assembly steps, shortening the production cycle, and greatly improving production efficiency. The integrated molding of the water channel 2 and the main body 1 optimizes the overall structural layout. Traditional distributed pipes are complex and occupy a large amount of space inside the machine, making maintenance and repair inconvenient. However, the integration of several independently spaced water channels 2 into the main body allows for orderly arrangement through a designed mold, avoiding cluttered pipes, significantly saving internal space, and making the overall layout more compact. This lays the foundation for miniaturized water purifier design. Furthermore, the independently spaced water channels 2 can achieve one or more stages of filtration.

[0028] Several water channels 2 are arranged at intervals along the vertical direction of the machine body 1.

[0029] By arranging several water channels 2 vertically at intervals along the upper and lower dimensions of the machine body 1, the internal space utilization and ease of use are further optimized. This avoids the problem of scattered and bent water channels, which would hinder miniaturization. The vertical arrangement of the water channels 2 fully utilizes the vertical space of the machine body 1. For example, raw water channels and filtered water channels can be arranged in an orderly manner from top to bottom, avoiding horizontal pipe intersections and making the overall structure more compact, further promoting the implementation of miniaturization design. From the perspective of assembly and maintenance convenience, the vertically arranged water channels 2 are in fixed and regular positions. During assembly, workers can connect the water channels 2 to the internal components of the machine body 1 according to the markings on the machine body 1, eliminating the need to search for interfaces in a cluttered pipeline and significantly reducing assembly time.

[0030] The water channel 2 includes a raw water input channel 201, and the filter assembly includes a pre-filter assembly 3. The inlet end of the raw water input channel 201 is used to connect to the raw water connector 4, and the outlet end of the raw water input channel 201 is connected to the liquid inlet end of the pre-filter assembly 3.

[0031] The raw water inlet channel 201 can be used to connect to a tap water pipe. A first sealing ring is provided between the raw water connector 4 and the water inlet end of the raw water inlet channel 201 to prevent water leakage.

[0032] The water channel 2 also includes a purified water output channel 202. The water outlet of the purified water output channel 202 is used to connect to the purified water connector 5, and the water inlet of the purified water output channel 202 is connected to the liquid outlet of the pre-filter assembly 3. The purified water output channel 202 is located below the raw water input channel 201.

[0033] When the user only needs primary filtration, the inlet of the water purification output channel 202 is open. The liquid is filtered by the pre-filter component 3 and then output along the water purification output channel 202 to achieve primary filtration. A second sealing end is provided between the water purification connector 5 and the outlet of the water purification output channel 202 to prevent leakage.

[0034] The body 1 is equipped with an inlet solenoid valve 10 for switching the water flow and a booster pump 11 for increasing water pressure. The filter assembly includes an RO filter assembly 6. The first end of the water inlet solenoid valve 10 is connected to the purified water output channel 202, the second end of the water inlet solenoid valve 10 is connected to the input end of the booster pump 11, and the output end of the booster pump 11 is connected to the liquid inlet end of the RO filter component 6. When the water inlet solenoid valve 10 is closed, the liquid enters the purified water output channel 202 through the raw water input channel 201 and the pre-filter assembly 3. The user can directly obtain purified water that has undergone preliminary filtration without having to start subsequent high-precision filtration. When the inlet solenoid valve 10 is opened, the liquid enters the RO filter assembly 6 through the raw water input channel 201, the pre-filter assembly 3, the inlet solenoid valve 10 and the booster pump 11.

[0035] The machine body 1 has several integrally formed pipe connection parts 101 on both sides. The first pipe connection part 101 is located on one side of the machine body 1. The first pipe connection part 101 is corresponding to the first end of the water inlet solenoid valve 10 and is connected to the purified water output channel 202. This is equivalent to connecting the water inlet solenoid valve 10 to the purified water output channel 202. The second pipe connection part 101 is located on one side of the machine body 1. The second pipe connection part 101 is corresponding to the second end of the water inlet solenoid valve 10. The third pipe connection part 101 is connected to the booster pump 11 through corresponding water fittings (tees, water pipes).

[0036] When the inlet solenoid valve 10 is opened, the liquid filtered by the pre-filter assembly 3 enters the solenoid valve 10 and then enters the RO filter assembly 6 through the booster pump 11 for filtration.

[0037] The filter assembly also includes a post-filter assembly 7, and the water channel 2 also includes a filter channel 204 for connecting to an external pressure tank, with one end of the filter channel 204 for connecting to the pressure tank connector 9. The liquid outlet of the RO filter assembly 6 and the liquid inlet of the post-filter assembly 7 are respectively connected to the filter channel 204; the liquid enters the filter channel 204 along the liquid outlet of the RO filter assembly 6 and enters the post-filter assembly 7 under the action of the pressure tank. The filtration channel 204 is located below the purified water output channel 202.

[0038] One end of the filter channel 204 is equipped with a pressure switch 18 for opening and closing the pressure tank. When the user does not want to install the pressure tank, the end of the filter channel 204 connected to the pressure tank connector 9 can be sealed, so the user only needs to output clean water. When the user needs to output pure water, the end of the filter channel 204 is connected to the pressure tank through a pipe. A third sealing ring is provided between the pressure tank connector 9 and the filter channel 204 to prevent water leakage.

[0039] The body 1 is provided with a water channel, and a water pump 12 is provided on the water channel. The input end of the water pump 12 is connected to the filter channel 204, and the output end of the water pump 12 is connected to the input end of the booster pump 11. When the water pump 12 starts, the water stored in the filter channel 204 is returned to the RO filter assembly 6 via the water pump 12 and the booster pump 11.

[0040] When the RO filter assembly 6 is not used for a long period of time, the water pump 12 can be started, and the water stored in the filter channel 204 can re-enter the RO filter assembly 6 for filtration.

[0041] The water channel 2 also includes a pure water output channel 203. The outlet end of the pure water output channel 203 is used to connect to the pure water connector 8, and the inlet end of the pure water output channel 203 is connected to the outlet end of the post-filter assembly 7. The water channel 2 also includes a wastewater discharge channel 205. The outlet end of the wastewater discharge channel 205 is used to connect to the drain connector 14, and the inlet end of the wastewater discharge channel 205 is connected to the sewage discharge end of the RO filter assembly 6. The body 1 is equipped with a wastewater solenoid valve 15 for opening and closing the inlet end of the wastewater discharge channel 205. When the wastewater solenoid valve 15 opens the inlet end of the wastewater discharge channel 205, the wastewater in the RO filter assembly 6 during the filtration process is discharged out of the body 1 along the wastewater discharge channel 205. The raw water input channel 201, pure water output channel 203, clean water output channel 202, wastewater discharge channel 205 and filtration channel 204 are arranged alternately from top to bottom; The pre-filter assembly 3, RO filter assembly 6 and post-filter assembly 7 are arranged in a front-middle-rear interval along the front-back direction of the body 1.

[0042] The connection method of the wastewater solenoid valve 15 is the same as that of the inlet solenoid valve 10, and will not be described in detail here. The body 1 has an integrally formed fixing part (fixed connecting column) for fixing the corresponding solenoid valve.

[0043] A fourth sealing ring is provided between the drain connector 14 and the liquid outlet end of the wastewater discharge channel 205 to prevent water leakage.

[0044] The body 1 is provided with a three-way valve 16. The first end of the three-way valve 16 is connected to the second end of the water inlet solenoid valve 10, the second end of the three-way valve 16 is connected to the input end of the booster pump 11, and the third end of the three-way valve 16 is connected to the output end of the water pump 12. The filter channel 204 is provided with a bypass branch 206 for connecting to the input end of the water pump 12. The bypass branch 206 is integrally formed with the side of the filter channel 204 to reduce the number of leakage connection points.

[0045] The upper part of the filter channel 204 extends into a first vertical channel and a second vertical channel. The first vertical channel is set to correspond with the RO filter component 6, and the second vertical channel is set to correspond with the post-filter component 7. The first vertical channel and the second vertical channel are set independently and spaced apart from each other. When the RO filter component 6 is not used for a long time, there will be corresponding water in the first vertical channel. If this water is left for a long time and enters the post-filter component 7 directly, it will affect the filtration effect. Therefore, it needs to re-enter the RO filter component 6 for filtration.

[0046] The filter assembly includes a filter cartridge housing and filter media located on the filter cartridge housing. The filter cartridge housing can be integrally formed with the body 1, reducing the fixing structure inside the body 1 and simplifying the internal structure of the body 1. Alternatively, the filter cartridge housing can be separated from the body 1, meaning the entire filter assembly can be detachably installed inside the body 1.

[0047] The body 1 also integrates several independent and spaced pipe connection parts 101. The pipe connection parts 101 are used to connect pipe connectors 17. The outer periphery of the pipe connection parts 101 is provided with arc-shaped blocks 102. A guide groove is formed between the outer periphery of the pipe connection parts 101 and the arc-shaped blocks 102 to guide the pipe connectors 17 into the pipe connection parts 101. The arc-shaped stop 102 at least partially covers the pipe joint 17 to form a protective structure for the pipe joint 17.

[0048] The pipe connection part 101 is integrally formed with the body 1. The integration of the pipe connection part 101 into the body 1 simplifies assembly and improves stability. During assembly, only the pipe connector 17 needs to be inserted into the pipe connection part 101, simplifying the process. The guide groove can guide the pipe connector 17 to be inserted accurately in a preset direction. The arc-shaped stop 102 forms a protective structure to extend the life of the connector: the arc-shaped stop 102 at least partially covers the pipe connector 17 to prevent the pipe connector 17 from deforming.

[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A water purifier with an integrated water circuit, comprising a body (1) and a filter assembly disposed within the body (1), characterized in that: The body (1) integrates several independent and spaced water channels (2), the water channels (2) and the body (1) are integrally formed and constitute an unremovable whole; the inlet and outlet of the filter assembly are connected to the corresponding water channels (2), and the filter assembly achieves one or more stages of filtration through the water channels (2). The plurality of water channels (2) are arranged horizontally on the body (1) to form a raw water input channel (201) for conveying raw water, a purified water output channel (202) for outputting purified water, and a pure water output channel (203) for outputting pure water. The raw water input channel (201), the purified water output channel (202), and the pure water output channel (203) operate independently and do not interfere with each other.

2. The water purifier with an integrated water circuit according to claim 1, characterized in that: Several water channels (2) are arranged at intervals along the vertical direction of the machine body (1).

3. The water purifier with an integrated water circuit according to claim 1, characterized in that: The filtration assembly includes a pre-filter assembly (3), the inlet end of the raw water input channel (201) is used to connect to the raw water connector (4), and the outlet end of the raw water input channel (201) is connected to the liquid inlet end of the pre-filter assembly (3).

4. The water purifier with an integrated water circuit according to claim 3, characterized in that: The water outlet end of the water purification output channel (202) is used to connect to the water purification connector (5), and the water inlet end of the water purification output channel (202) is connected to the liquid outlet end of the pre-filter assembly (3); The purified water output channel (202) is located below the raw water input channel (201).

5. The water purifier with an integrated water circuit according to claim 4, characterized in that: The machine body (1) is equipped with an inlet solenoid valve (10) for switching the water flow and a booster pump (11) for increasing water pressure. The filter assembly includes an RO filter assembly (6). The first end of the inlet solenoid valve (10) is connected to the purified water output channel (202), the second end of the inlet solenoid valve (10) is connected to the input end of the booster pump (11), and the output end of the booster pump (11) is connected to the liquid inlet end of the RO filter assembly (6). When the inlet solenoid valve (10) is closed, the liquid enters the purified water output channel (202) through the raw water input channel (201) and the pre-filter assembly (3). When the inlet solenoid valve (10) is opened, the liquid enters the RO filter assembly (6) through the raw water input channel (201), the pre-filter assembly (3), the inlet solenoid valve (10) and the booster pump (11).

6. The water purifier with an integrated water circuit according to claim 5, characterized in that: The filter assembly also includes a post-filter assembly (7), and the water channel (2) also includes a filter channel (204) for connecting an external pressure tank. One end of the filter channel (204) is used to connect to the pressure tank connector (9). The liquid outlet of the RO filter assembly (6) and the liquid inlet of the post-filter assembly (7) are respectively connected to the filter channel (204); the liquid enters the filter channel (204) along the liquid outlet of the RO filter assembly (6) and enters the post-filter assembly (7) under the action of the pressure tank. The filtration channel (204) is located below the purified water output channel (202).

7. The water purifier with an integrated water circuit according to claim 6, characterized in that: The body (1) is provided with a live water channel, and a water pump (12) is provided on the live water channel. The input end of the water pump (12) is connected to the filter channel (204), and the output end of the water pump (12) is connected to the input end of the booster pump (11). When the water pump (12) is started, the water stored in the filter channel (204) is returned to the RO filter assembly (6) via the water pump (12) and the booster pump (11).

8. The water purifier with an integrated water circuit according to claim 6, characterized in that: The outlet end of the pure water output channel (203) is used to connect to the pure water connector (8), and the inlet end of the pure water output channel (203) is connected to the outlet end of the post-filter assembly (7). The water channel (2) also includes a wastewater discharge channel (205). The outlet end of the wastewater discharge channel (205) is used to connect to the drain connector (14). The inlet end of the wastewater discharge channel (205) is connected to the sewage discharge end of the RO filter assembly (6). The machine body (1) is equipped with a wastewater solenoid valve (15) for opening and closing the inlet end of the wastewater discharge channel (205). When the wastewater solenoid valve (15) opens the inlet end of the wastewater discharge channel (205), the wastewater in the RO filter assembly (6) during the filtration process is discharged out of the machine body (1) along the wastewater discharge channel (205). The raw water input channel (201), pure water output channel (203), purified water output channel (202), wastewater discharge channel (205) and filtration channel (204) are arranged at intervals from top to bottom; The pre-filter assembly (3), RO filter assembly (6) and post-filter assembly (7) are arranged in a front-middle-rear interval along the front-back direction of the body (1).

9. The water purifier with an integrated water circuit according to claim 7, characterized in that: The body (1) is provided with a three-way valve (16). The first end of the three-way valve (16) is connected to the second end of the water inlet solenoid valve (10), the second end of the three-way valve (16) is connected to the input end of the booster pump (11), and the third end of the three-way valve (16) is connected to the output end of the water pump (12). The filter channel (204) is provided with a bypass branch (206) for connecting the input end of the water pump (12), and the bypass branch (206) is integrally formed with the side of the filter channel (204).

10. The water purifier with an integrated water circuit according to claim 1, characterized in that: The body (1) also integrates several independent and spaced pipe connection parts (101), which are used to connect pipe connectors (17). The pipe connection parts (101) are provided with arc-shaped blocks (102) around the pipe connection parts (101). A guide groove is formed between the outer periphery of the pipe connection parts (101) and the arc-shaped blocks (102) to guide the pipe connectors (17) to be inserted into the pipe connection parts (101). The arc-shaped stop (102) at least partially covers the pipe joint (17) to form a protective structure for the pipe joint (17).

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