阅读说明：本技术 一种防烫恒温龙头 (Anti-scalding constant-temperature faucet ) 是由 何永强 叶贤清 洪鸿行 陈乐祥 祝传宝 于 2021-09-29 设计创作，主要内容包括：本发明提供了一种防烫恒温龙头,本体、阀芯座组、开关阀芯和恒温阀芯；其中,所述本体内部形成有适于容纳所述阀芯座组的容纳腔；所述阀芯座组安装于所述容纳腔内,其包括进水道、出水道、开关阀芯座和恒温阀芯座,所述进水道连接进水口和所述恒温阀芯座,所述出水道与所述开关阀芯座和所述恒温阀芯座连接；所述恒温阀芯安装于所述恒温阀芯座上,其构造为对从所述进水口输入的热水和冷水进行混合,并通过所述出水道输送至所述开关阀芯；所述开关阀芯安装于所述开关阀芯座上,用于控制从所述出水道流出的混合水的开闭。通过本方案,使过水道与所述本体分离,提高了龙头的防烫效果。(The invention provides an anti-scald thermostatic faucet which comprises a body, a valve core seat group, a switch valve core and a thermostatic valve core, wherein the body is provided with a valve core seat; wherein, an accommodating cavity suitable for accommodating the valve core seat group is formed in the body; the valve core seat group is arranged in the accommodating cavity and comprises a water inlet channel, a water outlet channel, a switch valve core seat and a constant temperature valve core seat, wherein the water inlet channel is connected with a water inlet and the constant temperature valve core seat, and the water outlet channel is connected with the switch valve core seat and the constant temperature valve core seat; the thermostatic valve core is arranged on the thermostatic valve core seat and is configured to mix hot water and cold water input from the water inlet and convey the mixed water to the switch valve core through the water outlet channel; the switch valve core is arranged on the switch valve core seat and used for controlling the opening and closing of the mixed water flowing out of the water outlet channel. Through this scheme, make the water course with the body separation has improved leading effect of preventing scalding.)

1. An anti-scald thermostatic faucet, comprising: the valve core assembly comprises a body, a valve core seat assembly, a switch valve core and a thermostatic valve core; wherein:

an accommodating cavity suitable for accommodating the valve core seat group is formed in the body;

the valve core seat group is arranged in the accommodating cavity and comprises a water inlet channel, a water outlet channel, a switch valve core seat and a constant temperature valve core seat, wherein the water inlet channel is connected with a water inlet and the constant temperature valve core seat, and the water outlet channel is connected with the switch valve core seat and the constant temperature valve core seat;

the thermostatic valve core is arranged on the thermostatic valve core seat and is configured to mix hot water and cold water input from the water inlet and convey the mixed water to the switch valve core through the water outlet channel;

the switch valve core is arranged on the switch valve core seat and used for controlling the opening and closing of the mixed water flowing out of the water outlet channel.

2. The scald-proof thermostatic faucet of claim 1, wherein the valve core seat set comprises a first valve core seat for mounting a switch valve core and a second valve core seat for mounting a thermostatic valve core, the first valve core seat comprises a first water inlet, a first water inlet channel, a first water outlet channel and a switch valve core seat, the second valve core seat comprises a second water inlet, a second water inlet channel, a second water outlet channel and a thermostatic valve core seat, the first water inlet channel and the second water inlet channel are connected through a connecting joint to form the water inlet channel, and the first water outlet channel and the second water outlet channel are connected through a connecting joint to form the water outlet channel.

3. The anti-scald thermostatic faucet of claim 1, wherein a joint is further arranged on the switch valve core seat and used for fixing the switch valve core, and an opening is formed in the side edge of the joint.

4. The anti-scald thermostatic faucet of claim 3, wherein a locking cover is further disposed on the joint for locking the joint to the body.

5. The anti-scald thermostatic faucet of claim 3, wherein an elastic member is arranged at the joint of the joint bottom and the switch valve core seat.

6. An anti-scald thermostatic faucet as defined in claim 5, wherein the resilient member is a resilient rubber or spring.

7. The anti-scald thermostatic faucet of claim 3, wherein the body is further provided with a water outlet, the water outlet is provided with a water outlet connector, the water outlet connector is connected with the body in a threaded fit manner, and one end of the water outlet connector is inserted into an opening of the connector and is connected with the switch valve core.

8. The anti-scald thermostatic faucet of claim 1, wherein a step is provided inside an end of the body where the first valve cartridge is mounted for positioning with a joint.

9. The anti-scald thermostatic faucet of claim 1, wherein the minimum wall thickness of a portion of the valve plug seat set, which is in contact with the body, is 2.5 mm.

10. The anti-scald thermostatic faucet of any one of claims 1-9, wherein the cartridge holder assembly is made of a plastic material.

Technical Field

The invention relates to the technical field of bathrooms, in particular to an anti-scald constant-temperature faucet.

Background

The constant temperature shower faucet is commonly used in households, can adjust the temperature required by a user by controlling the mixing ratio of hot water and cold water through a switch, and can keep the temperature stable. However, the common constant-temperature shower faucet is formed by casting all copper bodies together, so that the cost is high, the heat conductivity of the copper body is high, and the temperature of the whole body is high when the shower faucet is used, so that children and old people can be easily scalded.

Disclosure of Invention

The invention discloses an anti-scald thermostatic faucet which is simple in structure and convenient to install and aims to solve the problem that a thermostatic faucet body is overheated.

The invention adopts the following scheme:

the application provides a prevent scalding constant temperature tap includes: the valve core assembly comprises a body, a valve core seat assembly, a switch valve core and a thermostatic valve core; wherein, an accommodating cavity suitable for accommodating the valve core seat group is formed in the body;

the valve core seat group is arranged in the accommodating cavity and comprises a water inlet channel, a water outlet channel, a switch valve core seat and a constant temperature valve core seat, wherein the water inlet channel is connected with a water inlet and the constant temperature valve core seat, and the water outlet channel is connected with the switch valve core seat and the constant temperature valve core seat;

the thermostatic valve core is arranged on the thermostatic valve core seat and is configured to mix hot water and cold water input from the water inlet and convey the mixed water to the switch valve core through the water outlet channel; the switch valve core is arranged on the switch valve core seat and used for controlling the opening and closing of the mixed water flowing out of the water outlet channel.

Preferably, the valve core seat set comprises a first valve core seat for installing the switch valve core and a second valve core seat for installing the thermostatic valve core, the first valve core seat comprises a first water inlet, a first water inlet channel, a first water outlet channel and a switch valve core seat, the second valve core seat comprises a second water inlet, a second water inlet channel, a second water outlet channel and a thermostatic valve core seat, the first water inlet channel and the second water inlet channel are connected through a connecting joint to form the water inlet channel, and the first water outlet channel and the second water outlet channel are connected through a connecting joint to form the water outlet channel.

Preferably, the switch valve core seat is further provided with a joint for fixing the switch valve core, and an opening is formed in the side edge of the joint.

Preferably, a locking cover is further arranged on the joint and used for locking the joint on the body.

Preferably, an elastic piece is arranged at the joint of the joint bottom and the switch valve core seat.

Preferably, the elastic member is elastic rubber or a spring.

Preferably, the body is further provided with a water outlet, the water outlet is provided with a water outlet connector, the water outlet connector is connected with the body in a threaded fit manner, and one end of the water outlet connector is inserted into an opening of the connector and is connected with the switch valve core.

Preferably, a step is arranged inside one end of the body, where the first valve core seat is installed, and is used for positioning with the joint.

Preferably, the wall thickness of the part of the valve core seat group, which is contacted with the body, is at least 2.5 mm.

Preferably, the valve core seat group of any one of the anti-scald thermostatic faucets is made of plastic materials.

By adopting the technical scheme, the invention can obtain the following technical effects: the body is not watered by arranging the water passage to be separated from the body, so that the problem that the body is overheated to scald a user cannot occur in the use process of the scald-proof thermostatic faucet; and furthermore, the valve core seat group is assembled by the first valve core seat and the second valve core seat, so that the problems of left and right non-concentricity of the integrated valve core seat caused by warping deformation and injection molding defects of difficult process molding, high defective rate and the like are solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is another schematic structural diagram of the first embodiment of the present invention;

FIG. 3 is another schematic structural diagram of the first embodiment of the present invention;

FIG. 4 is a schematic structural diagram of the first embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another embodiment of the present invention;

FIG. 6 is a schematic view of a valve core-seat set according to another embodiment of the present invention;

FIG. 7 is a schematic structural diagram of another embodiment of the present invention;

reference numerals

The thermostatic valve comprises a body 10, a water outlet 11, a valve core seat set 20, a first valve core seat 21, a switch valve core seat 211, a first water inlet 212, a first water inlet channel 213, a first water outlet channel 214, a second valve core seat 22, a thermostatic valve core seat 221, a second water inlet 222, a second water inlet channel 223, a second water outlet channel 224, a switch valve core 30, a thermostatic valve core 40, a switch handle 50, a temperature adjusting handle 60, a connector 70, a locking cover 80, a connecting connector 90, an elastic piece 100, an upper cover 110, a water outlet connector 120 and a water inlet connector 130.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1 to 3, a first embodiment of the present invention provides an anti-scald thermostatic faucet, including: the valve core assembly comprises a body 10, a valve core seat assembly 20, a switch valve core 30 and a thermostatic valve core 40; wherein, an accommodating cavity suitable for accommodating the valve core seat group 20 is formed inside the body 10;

the valve core seat group 20 is installed in the accommodating cavity and comprises a water inlet channel, a water outlet channel, a switch valve core seat 211 and a constant temperature valve core seat 221, wherein the water inlet channel is connected with a water inlet and the constant temperature valve core seat 221, and the water outlet channel is connected with the switch valve core seat 211 and the constant temperature valve core seat 221;

the thermostatic valve core 40 is mounted on the thermostatic valve core seat 221, and is configured to mix hot water and cold water input from the water inlet and deliver the mixed water to the switch valve core 30 through the water outlet channel; the switch valve core 30 is mounted on the switch valve core seat 211 and is used for controlling the opening and closing of the mixed water flowing out of the water outlet channel.

As shown in fig. 4, in this embodiment, the body 10 may be made of metal or plastic, and both ends of the body are provided with openings for installing the valve core, the switch handle 50 and the temperature adjustment handle 60; the inside of the valve core seat group is provided with an accommodating cavity, and the surface of the valve core seat group is provided with another opening for accommodating the valve core seat group 20; a water outlet 11 is formed at one end of the body 10, which is provided with the switch valve core 30, and is used for being externally connected with a water outlet pipe. One end of the body 10 close to the switch valve core 30 is provided with a step for positioning and orienting with the joint 70, so that the gap between the handle and the body 10 can be conveniently controlled, and the gap is radially sealed with the valve core seat group, therefore, the switch valve core 30 is positioned directly with the body 10 without being positioned with the valve core seat group 20.

The valve core seat assembly 20 is preferably made of plastic, which has good heat insulation performance and is inexpensive to manufacture, but it is within the scope of the present invention to use other materials, such as metal, acrylic, etc., and it is a preferred way of this embodiment to use plastic.

In this embodiment, the water inlet of the valve core seat set 20 includes a cold water inlet and a hot water inlet, which are respectively connected to the water inlet joint 130, and the cold water and the hot water input from the cold water inlet and the hot water inlet are delivered into the thermostatic valve core 40 through the water inlet channel. The water inlet channel and the water outlet channel are arranged inside the valve core seat group 20, the valve core seat group 20 is installed on the body 10, and the outer surface of the valve core seat group is wrapped by the body 10. The switch valve core seat 211 and the thermostatic valve core seat 221 are provided with two ends of the valve core seat group 20, which are respectively and correspondingly arranged at two ends of the body 10. The minimum wall thickness of the valve core seat and the contact part of the body 10 is 2.5mm, so that the anti-scald effect can be ensured. Meanwhile, in this embodiment, one end of the valve core 30 may be a hot water inlet, and one end of the thermostatic valve core 40 may be a cold water inlet.

The switch valve core 30 and the thermostatic valve core 40 are both in the prior art, cold water and hot water flow through the thermostatic valve core 40 and are mixed in the thermostatic valve core 40 to form mixed water which flows out to enter the water outlet channel, and the thermostatic valve core 40 can adjust the temperature of the mixed water by adjusting the mixing proportion. The switch valve core seat 211 is further provided with a joint 70 for fixing the switch valve core 30, and an opening is formed in a side edge of the joint 70. The joint 70 is further provided with a locking cover 80, and the joint 70 is locked on the body 10 through the locking cover 80; the thermostatic cartridge 40 is fixed to the body 10 by an upper cover 110.

In this embodiment, the cartridge holder assembly 20 is installed in the body 10, and hot water and mixed water flow in the water passage of the cartridge holder assembly 20, so that the body 10 does not directly exchange heat with the hot water, thereby preventing the user from being scalded due to an excessively high temperature of the body 10.

In a preferred embodiment, as shown in fig. 5 to 6, the valve core seat set 20 includes a first valve core seat 21 for mounting the switch valve core 30 and a second valve core seat 22 for mounting the thermostatic valve core 40, the first valve core seat 21 includes a first water inlet 212, a first water inlet channel 213, a first water outlet channel 214 and a switch valve core seat 211, the second valve core seat 22 includes a second water inlet 222, a second water inlet channel 223, a second water outlet channel 224 and a thermostatic valve core seat 221, the first water inlet channel 213 and the second water inlet channel 223 are connected by a connecting joint 90 to form the water inlet channel, and the first water outlet channel 214 and the second water outlet channel 224 are connected by the connecting joint 90 to form the water outlet channel.

In this embodiment, since the waterway of the thermostatic faucet is more complicated and is difficult to be completed by one valve core seat, the thermostatic faucet is disassembled into two parts to be connected by the connecting joint 90 to form the valve core seat set 20, and the two parts are disassembled to solve the problems of left and right non-concentricity caused by the warping deformation of one part, difficulty in process molding, high defective rate and other injection molding defects. Therefore, the valve core seat group 20 is composed of two valve core seat groups 20, and the water channel end where the connecting joint 90 is installed is provided with a step for positioning the connecting joint 90; the two valve core seats and the connecting joint 90 are assembled outside the body 10 and then installed into the accommodating cavity, so that the installation is more convenient. The sealing rings are arranged at the two ends of the connecting joint 90, so that the sealing effect is improved.

In another preferred embodiment, as shown in fig. 7, an elastic member 100 is disposed at the junction of the bottom of the joint 70 and the switch valve seat 211. By the scheme, the valve core seat group 20 can be pushed to one side, so that the positions of the thermostatic valve cores 40 are consistent, and the stability of the gap between the temperature adjusting handle 60 and the body 10 is ensured; the conventional problem of multiple part build-up size chain length is also solved by the fixed top-to-side approach. Meanwhile, a water outlet joint 120 is installed on the water outlet 11, and is connected with the body 10 in a threaded fit manner, and one end of the water outlet joint is inserted into an opening of the joint 70 and is connected with the switch valve core 30.

In this embodiment, the elastic member 100 is an elastic rubber or a spring. Of course, other elastic elements can be used, such as silicone or the like, and elastic rubber is preferably used here, which has an elastic effect on the one hand and which also improves the sealing properties on the other hand.

In another preferred embodiment, a plurality of ribs are disposed at a contact portion of the body 10 and the cartridge holder set 20, and a surface of the cartridge holder set 20 is jacked up by the ribs, so that a gap is formed between the body 10 and the cartridge holder set 20, thereby improving an anti-scald effect of the thermostatic faucet. Of course, in this embodiment, the heat insulating material such as asbestos, rock wool, etc. may also be filled to further improve the anti-scalding performance.

In the above technical solution, the present invention can also achieve the following technical effects: the valve core seat group 20 and the body 10 are simply and conveniently assembled, processes such as screw installation and the like are not needed, the cost is low, and the assembly efficiency is high; and one end of the thermostatic valve core 40 is kept aligned at the rightmost side by using elastic rubber or a spring, so that the instability of a handle gap caused by the combination tolerance of a plurality of pieces is reduced.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention.