CN219866413U

CN219866413U - Safety tap for cold and hot water

Info

Publication number: CN219866413U
Application number: CN202321021479.8U
Authority: CN
Inventors: 孔祥任
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-29
Filing date: 2023-04-29
Publication date: 2023-10-20
Anticipated expiration: 2033-04-29

Abstract

The utility model discloses a safe cold and hot water tap, which comprises a tap main body, wherein a left outer pipe and a right outer pipe are respectively arranged at the left end and the right end of the tap main body, a water mixing valve core is arranged at the middle side of the tap main body, the tap main body is provided with a left water inlet communicated with a cold water inlet of the water mixing valve core, the tap main body is provided with a right water inlet communicated with a hot water inlet of the water mixing valve core, a left inner pipe connected with the cold water inlet and the left water inlet is arranged in the left outer pipe, a right inner pipe connected with the hot water inlet and the right water inlet is arranged in the right outer pipe, water inlet connectors are respectively arranged in the left water inlet and the right water inlet, and a current-limiting check valve is respectively arranged in the water inlet connectors. The utility model has simple structure, low manufacturing cost, no water flowing in cold and hot water, no contact between the inner tube and the outer shell, no contact scald, no rupture of the tap body caused by icing, excessive water discharge restriction, water saving, and safe and convenient use.

Description

Safety tap for cold and hot water

Technical Field

The utility model relates to the technical field of water taps, in particular to a safe cold and hot water tap.

Background

At present, the conventional cold and hot temperature regulating tap produced and sold in the market has the problems that the temperature of the hot water inlet end of the tap body is very high (generally about 95 ℃) due to heat conduction, and skin is not touched by accident during washing, particularly bath time, and the tap body is touched and scalded; in addition, the pressure change of cold water or hot water can lead to cold and hot water when water is discharged; when water inflow at any end is stopped, water outflow is scalded or water outflow is frozen, and the human body is directly injured. In addition, a constant temperature faucet is also on the market, the mixed water outlet temperature is regulated by means of thermal expansion and contraction of a thermosensitive material, but most tap water is easy to produce scale deposit on a thermosensitive rod, so that temperature sensing is slow, a constant temperature water outlet effect cannot be achieved, and even the tap water is scrapped. Accordingly, there is a need for improvements in the art to avoid the disadvantages of the prior art.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings in the prior art and provides a safe cold and hot water faucet which is simple in structure and convenient to use.

The utility model is realized by the following technical scheme:

the utility model provides a safe cold and hot tap, includes the tap main part, the both ends are equipped with left outer tube and right outer tube respectively about the tap main part, the rear side of left outer tube is equipped with cold water inlet connection, the rear side of right outer tube is equipped with hot water inlet connection, a mix water case is installed to the mid side of tap main part, the tap main part is equipped with the intercommunication mix water case's cold water inlet's left water inlet, the tap main part is equipped with the intercommunication mix water case's hot water inlet's right water inlet, install in the left outer tube and connect cold water inlet connection with left inner tube of left water inlet, install in the right outer tube connect hot water inlet connection with right inner tube of right water inlet, all be equipped with a water inlet connection in the left water inlet with in the right water inlet, water inlet connection all installs a current-limiting check valve, the outside of tap main part install with mix water case's delivery port intercommunication water outlet connection.

Further, the water inlet joint comprises a connecting joint, the flow limiting check valve is installed in the connecting joint, and an installation nut is installed on the outer side of the connecting joint.

Further, a wear-resistant ring is arranged at the contact part of the connecting joint and the mounting nut.

Further, a pressing washer and an O-shaped waterproof rubber ring are arranged in the connecting joint, and the pressing washer and the O-shaped waterproof rubber ring are sleeved on the outer side of the end part of the left inner pipe or the end part of the right inner pipe.

Further, the mounting nut is provided with a waterproof glue gasket against the connection joint.

Further, the water outlet connector is arranged at the top of the tap main body.

Further, the water outlet connector is arranged at the bottom of the tap main body.

Further, the tap main body is in threaded connection with a compression nut which abuts against the water mixing valve core, the inner side of the compression nut is in threaded connection with a decoration nut, and the outer side cover of the compression nut is provided with a decoration ring.

Further, the left inner tube and the right inner tube are copper tubes.

Further, the water mixing valve core is a pressure balance valve core.

Compared with the prior art, the utility model has the advantages that the left inner pipe which is used for connecting the cold water inlet interface and the left water inlet is arranged in the left outer pipe, the right inner pipe which is used for connecting the hot water inlet interface and the right water inlet is arranged in the right outer pipe, the left water inlet and the right water inlet are respectively provided with the water inlet joint, and the water inlet joints are respectively provided with the current-limiting check valve, so that the internal connection structure of the faucet is simple, the use is safe and convenient, and the utility model has the following beneficial effects:

1. the hot water enters the inner pipe directly and is not in direct contact with the outer shell, so that heat conduction is not generated, and the tap body is ensured not to generate heat, namely, the tap body is not scalded by touching;

2. the inner pipe and the flow-limiting check valve are adopted for water passing, so that the phenomenon that cold water and hot water are not in time series can be prevented, the water passing is limited to be overlarge, the water is saved, and meanwhile, the tap body is prevented from being broken due to icing in a frozen area;

3. the mixed water passes through an extremely sensitive pressure balance valve core, so that the temperature of the water outlet is kept unchanged according to the set temperature, and the water outlet is prevented from being cold and hot due to the pressure change of the cold and hot water inlet end;

4. any cold water or hot water stops supplying water, and mixed water stops, so that the water is prevented from being scalded and frostbite.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of the structure of a water outlet connector of the safety tap for cold and hot water provided by the utility model when the water outlet connector is arranged at the top of a tap main body;

FIG. 2 is an exploded view of the structure of the safety tap for cold and hot water, in which the water outlet connector is provided at the top of the tap body;

FIG. 3 is a front view of the water outlet connector of the safety tap for cold and hot water of the utility model when the water outlet connector is arranged at the top of the tap body;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a schematic view of the structure of the water outlet connector of the safety tap for cold and hot water of the utility model when the water outlet connector is arranged at the bottom of the tap main body;

FIG. 6 is a front view of the water outlet connector of the safety tap for cold and hot water of the utility model when the water outlet connector is arranged at the bottom of the tap body;

fig. 7 is a B-B cross-sectional view of fig. 6.

In the figure: 1-a tap body; 2-left outer tube; 3-right outer tube; 4-a cold water inlet port; 5-a hot water inlet port; 6-a water mixing valve core; 7-a left water inlet; 8-right water inlet; 9-left inner tube; 10-right inner tube; 11-a restrictor check valve; 12-a water outlet joint; 13-a connection joint; 14-mounting a nut; 15-a wear-resistant ring; 16-pressing the gasket; 17-O-shaped waterproof rubber ring; 18-a waterproof glue gasket; 19-compressing the nut; 20-decorating the nut; 21-decorative ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model relates to a safe cold and hot water faucet as shown in fig. 1-7, which comprises a faucet main body 1, wherein a left outer tube 2 and a right outer tube 3 are respectively arranged at the left end and the right end of the faucet main body 1, a cold water inlet connector 4 is arranged at the rear side of the left outer tube 2, a hot water inlet connector 5 is arranged at the rear side of the right outer tube 3, a water mixing valve core 6 is arranged at the middle side of the faucet main body 1, a left water inlet 7 communicated with the cold water inlet of the water mixing valve core 6 is arranged in the faucet main body 1, a right water inlet 8 communicated with the hot water inlet of the water mixing valve core 6 is arranged in the faucet main body 1, a left inner tube 9 connected with the cold water inlet connector 4 and the left water inlet 7 is arranged in the left outer tube 2, a right inner tube 10 connected with the hot water inlet connector 5 and the right water inlet 8 is arranged in the right outer tube 3, a water inlet connector 11 is arranged in the left water inlet 7 and the right water inlet 8, a current-limiting check valve 11 is arranged at the water inlet connector, and a water outlet connector 12 communicated with the water mixing valve core 6 is arranged at the outer side of the faucet main body 1.

The water inlet joint comprises a connecting joint 13, the flow limiting check valve 11 is arranged in the connecting joint 13, and a mounting nut 14 is arranged on the outer side of the connecting joint 13, so that the water inlet joint is simple and stable to install.

The contact part of the connecting joint 13 and the mounting nut 14 is provided with a wear-resistant ring 15, so that the mounting nut 14 rotates smoothly during mounting and is easy to lock and mount.

The compression washer 16 and the O-shaped waterproof rubber ring 17 are arranged in the connecting joint 13, the compression washer 16 and the O-shaped waterproof rubber ring 17 are sleeved on the outer side of the end part of the left inner pipe 9 or the end part of the right inner pipe 10, and the compression washer 16 compresses the O-shaped waterproof rubber ring 17, so that the waterproof sealing performance of water inflow is improved.

The mounting nut 14 is provided with a waterproof glue gasket 18 which abuts against the connecting joint 13, so that the waterproof tightness of the connecting joint 13 during water inlet and access is improved.

As a specific embodiment, the water outlet connector 12 is arranged at the top of the tap body 1, so that the top shower head is convenient to install.

As another specific embodiment, the water outlet connector 12 is disposed at the bottom of the faucet body 1, so as to facilitate the installation of the water outlet and the hand shower.

The tap main body 1 is in threaded connection with a compression nut 19 which abuts against the water mixing valve core 6, the inner side of the compression nut 19 is in threaded connection with a decoration nut 20, and the outer side cover of the compression nut 19 is provided with a decoration ring 21, so that the water mixing valve core 6 is more firmly installed.

The left inner tube 9 and the right inner tube 10 are copper tubes, are easy to weld and are more stable to connect, pollution to water quality caused by too large cavity of the main body is reduced, and the hot water inlet tube has a heat insulation function so as to prevent scalding people in the using process. In the concrete implementation, the left inner tube 9 and the right inner tube 10 are copper tubes with 8 mm.

The water mixing valve core 6 is a pressure balance valve core, any cold water or hot water stops supplying water, mixed water is stopped, and the water is prevented from being scalded and frostbite.

In the production process, a method of numerical control high-speed rotating thin-wall copper pipe hot welding and water inlet stretching is adopted to manufacture faucet components with material saving, accurate inner space and reliable quality, and the material cost is reduced (the weight of copper materials is less than half of that of other methods).

The cold and hot water inlet feet of the tap are provided with water saving devices, and the flow per minute is 6-7L under the water pressure of 3 ba; the water outlet is also provided with a non-return device, so that the water in the pipe flows back when the faucet stops being used, and the use is prevented from being influenced.

According to the utility model, the left inner pipe connecting the cold water inlet interface 4 with the left water inlet 7 is arranged in the left outer pipe 2, the right inner pipe 10 connecting the hot water inlet interface 5 with the right water inlet 8 is arranged in the right outer pipe 3, water inlet connectors are respectively arranged in the left water inlet 7 and the right water inlet 8, and the water inlet connectors are respectively provided with a flow-limiting check valve 11, so that the internal connection structure of the faucet is simple, the use is safe and convenient, and the faucet has the following beneficial effects:

1. the hot water enters the inner pipe directly and is not in direct contact with the outer shell, so that heat conduction is not generated, and the tap body 1 is ensured not to generate heat, namely, the tap body is not scalded by touching;

2. the inner pipe and the flow-limiting check valve 11 are adopted for water passing, so that the phenomenon that cold water and hot water are not in time series can be prevented, the water passing is limited to be overlarge, the water is saved, and meanwhile, the tap body is prevented from being broken due to icing in a frozen area;

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A safe tap for cold and hot water is characterized in that: the faucet comprises a faucet main body, a left outer tube and a right outer tube are respectively arranged at the left end and the right end of the faucet main body, a cold water inlet connector is arranged at the rear side of the left outer tube, a hot water inlet connector is arranged at the rear side of the right outer tube, a water mixing valve core is arranged at the middle side of the faucet main body, a left water inlet communicated with the cold water inlet of the water mixing valve core is arranged on the faucet main body, a right water inlet communicated with the hot water inlet of the water mixing valve core is arranged in the left outer tube, a left inner tube connected with the cold water inlet connector and the left water inlet is arranged in the right outer tube, a water inlet connector is arranged in the left water inlet and the right water inlet, and a flow limiting check valve is arranged at the water inlet connector.

2. The safety tap of claim 1, wherein: the water inlet joint comprises a connecting joint, the flow limiting check valve is installed in the connecting joint, and an installation nut is installed on the outer side of the connecting joint.

3. A safety tap for cold and hot water according to claim 2, wherein: and a wear-resistant ring is arranged at the contact part of the connecting joint and the mounting nut.

4. A safety tap for cold and hot water according to claim 2, wherein: the compression gasket and the O-shaped waterproof rubber ring are arranged in the connecting joint, and the compression gasket and the O-shaped waterproof rubber ring are sleeved on the outer side of the end part of the left inner pipe or the end part of the right inner pipe.

5. A safety tap for cold and hot water according to claim 2, wherein: the mounting nut is provided with a waterproof glue gasket which abuts against the connecting joint.

6. The safety tap of claim 1, wherein: the water outlet connector is arranged at the top of the tap main body.

7. The safety tap of claim 1, wherein: the water outlet connector is arranged at the bottom of the tap main body.

8. The safety tap of claim 1, wherein: the faucet body is in threaded connection with a compression nut which abuts against the water mixing valve core, the inner side of the compression nut is in threaded connection with a decoration nut, and the outer side cover of the compression nut is provided with a decoration ring.

9. The safety tap of claim 1, wherein: the left inner tube and the right inner tube are copper tubes.

10. The safety tap of claim 1, wherein: the water mixing valve core is a pressure balance valve core.