Concealed installation valve body for concealed installation of bathroom

By using a copper concealed valve body and injection-molded plastic interface, the problems of water leakage and insufficient strength of the concealed valve body are solved, achieving high strength, long service life and convenient connection.

CN223622346UActive Publication Date: 2025-12-02WUHAN KINGBULL ECONOMIC DEV
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Patent Information

Application Number
CN202423263095.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-02
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Existing concealed valve bodies have the problems of water leakage risk and insufficient strength. In particular, all-copper concealed valve bodies are prone to water leakage, and plastic concealed valve bodies are prone to cracking after long-term use.

Method used

The valve body is made of copper and concealed. All interfaces are injection molded into plastic interfaces and grooves are set at the interfaces to enhance the connection strength. The hot and cold water interfaces are marked to distinguish them. It is connected to plastic pipes by heat fusion.

Benefits of technology

It improves the strength and service life of the concealed valve body, avoids the risk of water leakage, enhances the connection stability with plastic pipes, and facilitates the correct connection of hot and cold water.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223622346U_ABST
Patent Text Reader

Abstract

The concealed installation valve body comprises a water mixing valve body, a switching valve main body and a connecting supporting rod, the two ends of the connecting supporting rod are connected with the water mixing valve body and the switching valve main body respectively to form the concealed installation valve main body, and the concealed installation valve main body is made of copper. The water mixing valve body is provided with a first hot water connector, a first cold water connector and a first mixed water flow channel, the first hot water connector and the first cold water connector are connected with connectors made of plastic materials, and the switching valve body is provided with a first top spraying connector, a first shower head connector, a first lower water outlet connector and a second mixed water flow channel. The first top spraying connector, the first shower head connector and the first lower water outlet connector are connected with connectors made of plastic materials respectively, a connecting flow channel is arranged in the connecting supporting rod, and the two ends of the connecting flow channel are communicated with an outlet of the first mixed water flow channel and an inlet of the second mixed water flow channel respectively. The concealed installation valve not only can solve the problem of water leakage caused by long-time use of an all-copper concealed installation valve, but also can solve the problem of low strength of a plastic concealed installation valve.
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Description

Technical Field

[0001] This utility model relates to the field of bathroom product technology, specifically to a concealed valve body for concealed bathroom fixtures. Background Technology

[0002] As living standards improve, people have higher aesthetic demands for home decoration. In areas like bathrooms, they tend to choose more refined, beautiful, and textured designs, making concealed showerheads increasingly popular. Compared to exposed showerheads, concealed showerheads, while more complex to install and relatively more expensive, offer numerous advantages. They make the bathroom look cleaner, more aesthetically pleasing, and more spacious, reduce hard-to-clean areas, free up more space, and provide a more flexible showering experience.

[0003] Modern concealed showerheads are constantly being optimized in terms of functionality. For example, they feature excellent water outlets, some using soft silicone outlets that easily remove scale and prevent clogging, ensuring smooth water flow. They also offer various water spray effects and a large spray area, enhancing the showering experience. Operation is becoming increasingly convenient and easy to use, with clear and easy-to-understand instructions, making them simple and convenient for the elderly and children. In terms of design, they also emphasize aesthetics, using electrophoresis processes to create a soft texture with good gloss and smoothness, complementing various interior design styles.

[0004] The design structure of a concealed shower head mainly includes an embedded component containing a concealed valve body. During installation, the embedded box is buried in the wall and connected to the hot and cold water inlet pipes. After installation, only the central control panel and the top shower head are visible on the wall, giving it a simple and elegant appearance.

[0005] Currently, concealed valve bodies are available in two types: all-copper and plastic. All-copper concealed valve bodies are not only expensive, but also pose a risk of leakage at the connection points after prolonged use with plastic pipes. Plastic concealed valve bodies, except for the copper cores of the mixing valve and switching valve, are entirely made of plastic. While this type of plastic concealed valve body is heat-fused to the plastic pipe, eliminating the risk of leakage, its strength is insufficient, making it prone to cracking after prolonged use. Summary of the Invention

[0006] To address the problems existing in the prior art, this utility model provides a concealed valve body for concealed bathroom fixtures. This concealed valve body is ingeniously designed, which can solve both the leakage problem of all-copper concealed valve bodies after long-term use and the low strength problem of plastic concealed valve bodies.

[0007] The technical solution adopted to achieve the above-mentioned objectives of this utility model is as follows:

[0008] A concealed valve body for concealed bathroom use, comprising a mixing valve body, a switching valve body and a connecting support rod. The two ends of the connecting support rod are respectively connected to the mixing valve body and the switching valve body to form a concealed valve body. The material of the concealed valve body is copper. The mixing valve body is respectively provided with a first hot water interface, a first cold water interface and a first mixed water flow channel. A second hot water interface is connected to the first hot water interface, and a second cold water interface is connected to the first cold water interface. The switching valve body is respectively provided with a first overhead shower interface, a first hand shower interface, a first downspout interface and a second mixed water flow channel. A second overhead shower interface is connected to the first overhead shower interface, a second hand shower interface is connected to the first hand shower interface, and a second downspout interface is connected to the first downspout interface. The materials of the second hot water interface, the second cold water interface, the second overhead shower interface, the second hand shower interface and the second downspout interface are all plastic. A connecting flow channel is provided inside the connecting support rod, and the two ends of the connecting flow channel are respectively communicated with the outlet of the first mixed water flow channel and the inlet of the second mixed water flow channel.

[0009] The concealed valve body is in the shape of a "dry" character. The first hot water interface and the first cold water interface are coaxial. The first hand shower interface and the first downspout interface are coaxial. The axis of the first hot water interface is parallel to the axis of the first hand shower interface. The axis of the first overhead shower interface is perpendicular to the axis of the first hand shower interface. The first hand shower interface and the first downspout interface are symmetrically arranged with respect to the first overhead shower interface.

[0010] The second hot water interface is connected to the outlet side of the first hot water interface by injection molding. The second cold water interface is connected to the outlet side of the first cold water interface by injection molding. The second overhead shower interface is connected to the outlet side of the first overhead shower interface by injection molding. The second hand shower interface is connected to the outlet side of the first hand shower interface by injection molding. The second downspout interface is connected to the outlet side of the first downspout interface by injection molding.

[0011] A plurality of axially distributed grooves are provided on the outer wall of the outlet side of the first hot water interface. A plurality of axially distributed grooves are provided on the outer wall of the outlet side of the second cold water interface. A plurality of axially distributed grooves are provided on the outer wall of the outlet side of the first hand shower interface. A plurality of axially distributed grooves are provided on the outer wall of the outlet side of the first downspout interface. A plurality of axially distributed grooves are provided on the outer wall of the outlet side of the first overhead shower interface. The grooves are annular. [[ID=​​​​​​​​​​1. The main body of the concealed valve is made of copper, which greatly improves the strength of the concealed valve, making it less prone to breakage after long-term use and extending its service life.

[0016] 2. All metal interfaces of the concealed valve body are injection molded with plastic interfaces, which allows the various interfaces of the concealed valve to be connected to the plastic pipe by heat fusion, increasing the connection strength between the concealed valve and the plastic pipe and solving the problem of water leakage after long-term use of the concealed valve.

[0017] 3. The hot and cold water interfaces of the concealed valve body are marked to facilitate the connection of the hot and cold water interfaces of the concealed valve body. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a concealed valve body used in concealed bathroom fixtures.

[0019] Figure 2 This is a left view of a concealed valve body used in concealed bathroom fixtures.

[0020] Figure 3 This is a top view of a concealed valve body used in concealed bathroom fixtures.

[0021] Figure 4 for Figure 2 A cross-sectional view along the CC direction.

[0022] Figure 5 for Figure 3 A sectional view along the EE direction.

[0023] Figure 6 for Figure 5 A magnified view of J in the middle.

[0024] Among them, 1-mixing valve body, 2-first hot water interface, 3-first cold water interface, 4-first mixing water channel, 5-second hot water interface, 6-second cold water interface, 7-switching valve body, 8-first top spray interface, 9-first shower head interface, 10-first bottom water outlet interface, 11-second mixing water channel, 12-second top spray interface, 13-second shower head interface, 14-second bottom water outlet interface, 15-groove, 16-connecting support rod, 17-connecting channel, 18-inner hole, 19-hot water indicator ring, 20-cold water indicator ring. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings.

[0026] The structure of the concealed valve body for concealed bathroom fixtures provided in this embodiment is as follows: Figure 1-3 As shown, it includes a mixing valve body 1, a switching valve body 7, and a connecting support rod 16.

[0027] The structure of the mixing valve body 1 is substantially the same as that of the valve body of the mixing valve commonly used for mixing cold water and hot water at present. The structure of the switching valve body 7 is substantially the same as that of the switching valve body commonly used for switching between the rain shower, handheld showerhead and downward water outlet. What is changed in the present utility model is the material of the mixing valve body 1 and the switching valve body 7.

[0028] Both ends of the connecting support rod 16 are respectively connected to the mixing valve body 1 and the switching valve body 7 to form a concealed valve body. The concealed valve body is in the shape of the Chinese character 'gan' (meaning dry), and the material of the concealed valve body is copper.

[0029] As Figure 3 and Figure 5 shown, the mixing valve body 1 is respectively provided with a first hot water interface 2, a first cold water interface 3 and a first mixed water flow channel 4. The first hot water interface 2 and the first cold water interface 3 are coaxial. The switching valve body 7 is respectively provided with a first rain shower interface 8, a first handheld showerhead interface 9, a first downward water outlet interface 10 and a second mixed water flow channel 11. The first handheld showerhead interface 9 and the first downward water outlet interface 10 are coaxial. The axis of the first hot water interface 2 is parallel to the axis of the first handheld showerhead interface 9. The axis of the first rain shower interface 8 is perpendicular to the axis of the first handheld showerhead interface 9. The first handheld showerhead interface 9 and the first downward water outlet interface 10 are symmetrically arranged with respect to the first rain shower interface 8.

[0030] On the outer wall of the outlet side of the first hot water interface 2, two grooves 15 are provided along its axial direction. On the outer wall of the outlet side of the second cold water interface 3, two grooves 15 are provided along its axial direction. On the outer wall of the outlet side of the first handheld showerhead interface 9, two grooves 15 are provided along its axial direction. On the outer wall of the outlet side of the first downward water outlet interface 10, two grooves 15 are provided along its axial direction. On the outer wall of the outlet side of the first rain shower interface 8, two grooves 15 are provided along its axial direction. The grooves 15 are annular, and the cross-section of the grooves 15 is in the shape of a swallowtail.

[0031] The first hot water inlet 2 is connected to the second hot water inlet 5 via injection molding. The first cold water inlet 3 is connected to the second cold water inlet 6 via injection molding. The first overhead shower inlet 8 is connected to the second overhead shower inlet 12 via injection molding. The first shower head inlet 9 is connected to the second shower head inlet 13 via injection molding. The first bottom outlet inlet 10 is connected to the second bottom outlet inlet 14 via injection molding. The second hot water inlet 5, the second cold water inlet 6, the second overhead shower inlet 12, the second shower head inlet 13, and the second bottom outlet inlet 14 are all made of plastic, such as polypropylene or polyethylene. Because the outlet sides of the first hot water inlet 2, the first cold water inlet 3, the first shower head inlet 9, the first overhead shower inlet 8, and the first bottom outlet inlet 10 are provided with dovetail-shaped grooves, the connection strength between each plastic inlet and its corresponding copper component is further enhanced. In addition, all the interfaces of the concealed valve are made of plastic, which can be connected to plastic pipes by heat fusion, further increasing the connection strength between the concealed valve and the plastic pipes and eliminating the risk of water leakage at the connection.

[0032] The upper part of the connecting support rod 16 is provided with a connecting flow channel 17, and the two ends of the connecting flow channel 17 are respectively connected to the outlet of the first mixing water channel 4 and the inlet of the second mixing water channel 11. The lower part of the connecting support rod 16 is provided with a strip-shaped inner hole 18. The inner hole 18 can reduce the weight of the concealed valve, thereby reducing the production cost of the concealed valve.

[0033] A red hot water indicator ring 19 is affixed to the inner wall of the outlet side of the second hot water inlet 5, and a blue cold water indicator ring 20 is affixed to the inner wall of the outlet side of the second cold water inlet 6. By setting up hot and cold water indicator rings, the risk of connecting the cold and hot water incorrectly can be avoided.

Claims

1. A concealed valve body for concealed bathroom fixtures, comprising a mixing valve body and a switching valve body, characterized in that: It further includes a connecting support rod. The two ends of the connecting support rod are respectively connected to the mixing valve body and the switching valve body to form a concealed valve body. The material of the concealed valve body is copper. The mixing valve body is respectively provided with a first hot water interface, a first cold water interface and a first mixed water flow channel. A second hot water interface is connected to the first hot water interface, and a second cold water interface is connected to the first cold water interface. The switching valve body is respectively provided with a first overhead shower interface, a first shower head interface, a first downward water outlet interface and a second mixed water flow channel. A second overhead shower interface is connected to the first overhead shower interface, a second shower head interface is connected to the first shower head interface, and a second downward water outlet interface is connected to the first downward water outlet interface. The materials of the second hot water interface, the second cold water interface, the second overhead shower interface, the second shower head interface and the second downward water outlet interface are all plastics. The connecting support rod is provided with a connecting flow channel, and the two ends of the connecting flow channel are respectively communicated with the outlet of the first mixed water flow channel and the inlet of the second mixed water flow channel.

2. The concealed valve body for concealed bathroom fixtures according to claim 1, characterized in that: The concealed valve body is in the shape of the Chinese character "gan". The first hot water interface and the first cold water interface are coaxial. The first shower head interface and the first downward water outlet interface are coaxial. The axis of the first hot water interface is parallel to the axis of the first shower head interface. The axis of the first overhead shower interface is perpendicular to the axis of the first shower head interface. The first shower head interface and the first downward water outlet interface are symmetrically arranged with respect to the first overhead shower interface.

3. The concealed valve body for concealed bathroom fixtures according to claim 1, characterized in that: The second hot water interface is connected to the outlet side of the first hot water interface by injection molding. The second cold water interface is connected to the outlet side of the first cold water interface by injection molding. The second overhead shower interface is connected to the outlet side of the first overhead shower interface by injection molding. The second shower head interface is connected to the outlet side of the first shower head interface by injection molding. The second downward water outlet interface is connected to the outlet side of the first downward water outlet interface by injection molding.

4. The concealed valve body for concealed bathroom fixtures according to claim 3, characterized in that: A plurality of axially distributed grooves are formed on the outer wall of the outlet side of the first hot water interface. A plurality of axially distributed grooves are formed on the outer wall of the outlet side of the second cold water interface. A plurality of axially distributed grooves are formed on the outer wall of the outlet side of the first shower head interface. A plurality of axially distributed grooves are formed on the outer wall of the outlet side of the first downward water outlet interface. A plurality of axially distributed grooves are formed on the outer wall of the outlet side of the first overhead shower interface. The grooves are annular.

5. The concealed valve body for concealed bathroom fixtures according to claim 4, characterized in that: The cross section of the groove is in the shape of a swallowtail.

6. The concealed valve body for concealed bathroom fixtures according to claim 1, characterized in that: A red hot water marking ring is adhered to the inner wall of the second hot water interface, and a blue cold water marking ring is adhered to the inner wall of the second cold water interface.