Anti-scald temperature control faucet

Abstract

The utility model provides an anti-scald temperature control faucet which comprises a metal valve body provided with a hot water inlet, a cold water inlet and a water outlet, and a temperature control valve element assembly arranged at one end of the valve body. An integrally formed plastic inner shell is arranged in the metal valve body; a hot water channel communicated with the hot water inlet and the first water inlet of the temperature control valve core assembly is arranged on the plastic inner shell; a supercooled water cavity is formed by the outer surface of the plastic inner shell and the inner surface of the metal valve body and communicated with the cold water inlet and the second water inlet of the temperature control valve element assembly. The outer surface of the plastic inner shell and the inner surface of the metal valve body are arranged to be the supercooled water cavity, and the supercooled water cavity is communicated with the cold water inlet and the second water inlet of the temperature control valve element assembly, so that the supercooled water cavity can cover the whole inner surface of the metal valve body, and an internal hot water flow channel and a mixed water flow channel are wrapped; and heat is prevented from being directly transferred to the metal valve body, so that the situation that a user is scalded due to high surface temperature of the metal valve body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bathrooms, and in particular to an anti-scalding temperature-controlled faucet. Background Art

[0002] The faucet body of a shower faucet is usually mounted directly on the wall. Common faucet bodies are usually made in one piece using a casting process. The faucet body is integrally formed with internal water channels and connecting joints for connecting to the water inlet pipe during casting. The connecting joints are connected to the cold water pipe and the hot water pipe respectively. The water temperature is adjusted by adjusting the ratio of cold water and hot water flow through the temperature-controlled valve core assembly. However, the introduction of hot water will heat the faucet body, making its surface temperature high, and users (especially children) can easily be scalded when using it. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a scalding-proof temperature-controlled faucet to solve the above-mentioned problem.

[0004] The utility model adopts the following scheme:

[0005] The present application provides a scald-proof temperature-controlled faucet, comprising a metal valve body provided with a hot water inlet, a cold water inlet, and a water outlet, a temperature-controlled valve core assembly disposed at one end of the valve body, and an integrally formed plastic inner shell disposed within the metal valve body; a first valve core cavity is disposed at one end of the plastic inner shell for mounting the temperature-controlled valve core assembly, and the plastic inner shell is provided with at least one water outlet channel communicating with a mixing cavity of the temperature-controlled valve core assembly;

[0006] The plastic inner shell is provided with a hot water channel connecting the hot water inlet and the first water inlet of the temperature control valve core assembly; the outer surface of the plastic inner shell and the inner surface of the metal valve body form a cavity for supercooled water, and the cavity connects the cold water inlet and the second water inlet of the temperature control valve core assembly.

[0007] Furthermore, the two ends of the plastic inner shell are placed on the outside of the hot water inlet and the cold water inlet to achieve side sealing with the metal valve body through the first sealing ring; the outer surface of the plastic inner shell and the inner surface of the metal valve body between the two first sealing rings form the cavity for supercooled water.

[0008] Furthermore, the plastic inner shell is provided with a plurality of independent water outlet channels; and the other end of the plastic inner shell is provided with a second valve core cavity for installing a switching valve core assembly; the switching valve core assembly is used to switch different water outlet channels to discharge water.

[0009] Furthermore, the hot water inlet is arranged on a side close to the first valve core cavity.

[0010] Furthermore, the metal valve body is in the shape of a hollow square column or a cylindrical column; the hot water inlet and the cold water inlet are arranged to protrude outward.

[0011] Furthermore, it also includes a connecting assembly for connecting the hot water inlet and the cold water inlet to the water inlet on the wall; the connecting assembly includes a locking nut, a fixing nut with one end clamped to the locking nut and the other end screwed to the water inlet, and a special-shaped sealing ring arranged at the bottom of the locking nut and sealing the outer periphery of the water inlet of the plastic inner shell.

[0012] Furthermore, a filter element is provided in the locking nut.

[0013] Furthermore, the metal valve body is made of copper, and the plastic inner shell is made of PPS material.

[0014] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0015] 1. The structure of setting the plastic inner shell in the metal valve body makes the metal valve body structure simple, easy to form, and light in weight.

[0016] 2. The outer surface of the plastic inner shell and the inner surface of the metal valve body are set to form a supercooled water cavity, which is connected to the cold water inlet and the second water inlet of the temperature control valve core assembly, so that the supercooled water cavity can cover the entire inner surface of the metal valve body, and then wrap the internal hot water flow channel and the mixed water flow channel, avoiding direct heat transfer to the metal valve body, thereby avoiding its high surface temperature and causing burns to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic structural diagram of an anti-scalding temperature-controlled faucet according to an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the exploded structure of an anti-scalding temperature-controlled faucet according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of a scalding-proof temperature-controlled faucet according to an embodiment of the present invention. Figure 1 ;

[0021] Figure 4This is a schematic diagram of the cross-sectional structure of a scalding-proof temperature-controlled faucet according to an embodiment of the present invention. Figure 2 ;

[0022] Figure 5 This is a schematic diagram of the exploded structure of the connection components of an anti-scalding temperature-controlled faucet according to an embodiment of the present invention;

[0023] Icon: metal valve body 1, hot water inlet 2, cold water inlet 3, temperature control valve core assembly 4, switching valve core assembly 5, plastic inner shell 6, first valve core cavity 7, second valve core cavity 8, cavity 9, second water inlet 10, first water inlet 11, mixed water flow channel 12, water outlet flow channel 13, first sealing ring 14, connecting assembly 15, locking nut 16, fixing nut 17, special-shaped sealing ring 18, filter element 19. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Example

[0026] Combine Figures 1 to 5 As shown, this embodiment provides an anti-scalding temperature-controlled faucet, comprising a metal valve body 1 provided with a hot water inlet 2, a cold water inlet 3, and a water outlet, a temperature-controlled valve core assembly 4 disposed at one end of the valve body, and an integrally formed plastic inner shell 6 disposed within the metal valve body 1; a first valve core cavity 7 is disposed at one end of the plastic inner shell 6 for mounting the temperature-controlled valve core assembly 4, and the plastic inner shell 6 is provided with at least one water outlet channel 13 communicating with a mixing cavity of the temperature-controlled valve core assembly 4;

[0027] The plastic inner shell 6 is provided with a hot water channel connecting the hot water inlet 2 and the first water inlet 11 of the temperature control valve core assembly 4; the outer surface of the plastic inner shell 6 and the inner surface of the metal valve body 1 form a cavity 9 for supercooled water, and the cavity 9 is connected to the cold water inlet 3 and the second water inlet 10 of the temperature control valve core assembly 4.

[0028] The structure of disposing a plastic inner shell 6 within the metal valve body 1 makes the metal valve body 1 simple in structure, easy to mold, and lightweight. A supercooled water cavity 9 is provided between the outer surface of the plastic inner shell 6 and the inner surface of the metal valve body 1. This cavity 9 connects to the cold water inlet 3 and the second water inlet 10 of the temperature control valve core assembly 4, so that the supercooled water cavity 9 can cover the entire inner surface of the metal valve body 1, thereby enveloping the internal hot water flow channel and mixed water flow channel, preventing heat from being directly transferred to the metal valve body 1, thereby preventing its surface temperature from being high and causing burns to the user.

[0029] Specifically, in this embodiment, the metal valve body 1 is made of copper, and the plastic inner shell 6 is made of PPS material. The metal valve body 1 can be a hollow square column or cylindrical shape that fits the plastic inner shell 6. Since there is no other structure inside the metal valve body 1, it is easy to process and shape, with high yield and low cost. As shown in the figure, this embodiment takes the square metal valve body 1 as an example. The metal valve body 1 is a square column-shaped structure with openings on both ends. The inner side surface is provided with the hot water inlet 2 and the cold water inlet 3 protruding outward for connection to the water inlet on the wall. The metal valve body 1 is provided with a first water outlet and a second water outlet on the upper and lower sides, respectively.

[0030] like Figures 2 to 4 As shown, the plastic inner shell 6, integrally formed within the metal valve body 1, is provided with a first valve core cavity 7 at one end and a second valve core cavity 8 at the other end, respectively housing the temperature control valve core assembly 4 and the switching valve core assembly 5. The plastic inner shell 6 is provided with a hot water channel connecting the hot water inlet 2 and the first water inlet 11 of the temperature control valve core assembly 4, a mixing flow channel 12 connecting the mixing chamber of the temperature control valve core assembly 4 and the switching valve core, and two independent water outlet flow channels 13 connecting the stimulation outlets of the switching valve core assembly 5. The outer surface of the plastic inner shell 6 and the inner surface of the metal valve body 1 form a supercooled water cavity 9, which connects to the cold water inlet 3 and the second water inlet 10 of the temperature control valve core assembly 4. Specifically, the two ends of the plastic inner shell 6 are placed on the outside of the hot water inlet 2 and the cold water inlet 3, and are sealed with the metal valve body 1 through the first sealing ring 14; the outer surface of the plastic inner shell 6 and the inner surface of the metal valve body 1 between the two first sealing rings 14 form the cavity 9 for supercooled water. It can be seen that the cavity 9 is the cold water channel, which almost covers the entire inner surface of the metal valve body 1, wrapping the internal hot water flow channel and mixed water flow channel 12 and the outlet flow channel 13, avoiding the direct transfer of heat to the metal valve body 1, and thus avoiding the high surface temperature thereof, which may cause burns to the user. The setting of the independent outlet flow channel 13 enables the switching valve core assembly 5 to achieve the maximum flow rate of water after switching the water path. In this embodiment, the first water outlet is used to connect to the overhead shower, and the second water outlet is used to connect to the handheld shower.

[0031] In this embodiment, the hot water inlet 2 and the cold water inlet 3 are connected to the water inlet on the wall through a connecting assembly 15; the connecting assembly 15 includes a locking nut 16, a fixing nut 17 whose one end is clamped to the locking nut 16 and the other end is screwed to the water inlet, and a special-shaped sealing ring 18 arranged at the bottom of the locking nut 16 and sealing the outer periphery of the water inlet of the plastic inner shell 6; and a filter 19 is also provided in the locking nut 16.

[0032] Preferably, in this embodiment, the hot water inlet 2 is arranged on a side close to the first valve core cavity 7, that is, the temperature control valve core assembly 4 is arranged in the valve core cavity close to the hot water inlet 2, which greatly reduces the length of the hot water flow channel and reduces the external transfer of heat.

[0033] Of course, it should be noted that the temperature control valve core assembly 4 has both the function of regulating temperature and regulating flow. The switching valve core assembly 5 and the temperature control valve core assembly 4 both include a handle for user operation.

[0034] The above are only preferred implementations of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention fall within the protection scope of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0037] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

Claims

1. A scalding-proof temperature-controlled faucet, comprising a metal valve body provided with a hot water inlet, a cold water inlet, and a water outlet, and a temperature-controlled valve core assembly provided at one end of the valve body, characterized in that: An integrally formed plastic inner shell is provided in the metal valve body; a first valve core cavity is provided at one end of the plastic inner shell for mounting the temperature control valve core assembly, and the plastic inner shell is provided with at least one water outlet channel communicating with a mixing cavity of the temperature control valve core assembly; The plastic inner shell is provided with a hot water channel connecting the hot water inlet and the first water inlet of the temperature control valve core assembly; a cavity for supercooled water is formed between the outer surface of the plastic inner shell and the inner surface of the metal valve body, and the cavity connects the cold water inlet and the second water inlet of the temperature control valve core assembly.

2. The anti-scalding temperature-controlled faucet according to claim 1, characterized in that: The two ends of the plastic inner shell are placed on the outside of the hot water inlet and the cold water inlet, and are side-sealed with the metal valve body through the first sealing ring; the outer surface of the plastic inner shell and the inner surface of the metal valve body between the two first sealing rings form the cavity for supercooled water.

3. The anti-scalding temperature-controlled faucet according to claim 1 or 2, characterized in that: The plastic inner shell is provided with a plurality of independent water outlet channels; and the other end of the plastic inner shell is provided with a second valve core cavity for installing a switching valve core assembly; the switching valve core assembly is used to switch between different water outlet channels for water discharge.

4. The anti-scalding temperature-controlled faucet according to claim 3, characterized in that: The hot water inlet is arranged on a side close to the first valve core cavity.

5. The anti-scalding temperature-controlled faucet according to claim 1, characterized in that: The metal valve body is in the shape of a hollow square column or a cylindrical column; the hot water inlet and the cold water inlet are arranged to protrude outward.

6. The anti-scalding temperature-controlled faucet according to claim 5, characterized in that: It also includes a connecting assembly for connecting the hot water inlet and the cold water inlet to the water inlet on the wall; the connecting assembly includes a locking nut, a fixing nut with one end clamped to the locking nut and the other end screwed to the water inlet, and a special-shaped sealing ring arranged at the bottom of the locking nut and sealing the outer periphery of the water inlet of the plastic inner shell.

7. The anti-scalding temperature-controlled faucet according to claim 6, characterized in that: A filter is also provided in the locking nut.

8. The anti-scalding temperature-controlled faucet according to claim 1, characterized in that: The metal valve body is made of copper, and the plastic inner shell is made of PPS material.

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