CN216923519U

CN216923519U - External three-way valve assembly for zero-cold water heater

Info

Publication number: CN216923519U
Application number: CN202220561120.9U
Authority: CN
Inventors: 温小繁; 郑家云; 肖龙炜; 邱琴生; 李静; 吴卫春
Original assignee: Foshan Suertec Electric Appliance Co ltd
Current assignee: Foshan Suertec Electric Appliance Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-07-08
Anticipated expiration: 2032-03-15

Abstract

The utility model relates to an external three-way valve assembly for a zero-cold water heater, which comprises a first valve, a second valve, a one-way valve and a movable joint, wherein the one-way valve is arranged in an interface of the first valve, one end of the movable joint is connected with the interface, and the other end of the movable joint is connected with an interface of the second valve. The utility model discloses an external three-way valve assembly for a zero-cold water heater, which can realize the zero-cold water function by selecting different pipeline connection methods under different home decoration conditions, so that the installation adaptability of the water heater is higher, and the installation cost of a user is reduced.

Description

External three-way valve assembly for zero-cold water heater

Technical Field

The utility model relates to the technical field of water heater accessories, in particular to an external three-way valve assembly for a zero-cold water heater.

Background

With the rapid development of science and technology in China, the water heater becomes one of the necessary household appliances for each household. However, when the water heater is used, cold water is discharged first, and hot water is discharged after the cold water is discharged, so that the problem of resource waste is caused, and the living cost of a user is increased. The zero-cold-water type water heater appears in the market at present, the zero-cold-water function generally needs a water return pipe arranged between a cold water pipe and a hot water pipe, a circulating pump is arranged on the circulating pipeline to return water cooled in the hot water pipe, the water is reheated in the water heater to keep the temperature of the hot water in the hot water pipe, hot water can be timely discharged when a user uses the hot water conveniently, and convenience is brought to the user. However, when the water heater is installed, the hot water pipe and the cold water pipe are usually connected to a plurality of water consumption points, if a common connecting valve is used, the water discharged from the cold water pipe is hot water, and the use of cold water is influenced; in addition, under the existing home decoration condition, the problem of incompatibility of a return water installation structure of the zero-cold-water heater occurs, the adaptability of installation engineering is low, and the installation cost of a user is greatly increased.

Therefore, there is an urgent need to provide an external three-way valve assembly for a zero-cold water heater.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and shortcomings of the prior art, and provides an external three-way valve assembly for a zero-cold-water heater, which can realize the zero-cold-water function by selecting different pipeline connection methods under different home decoration conditions, so that the installation adaptability of the water heater is higher, and the installation cost of a user is reduced.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides a zero external three-way valve sub-assembly for cold water heater, includes valve one, valve two, check valve and union, the check valve set up in inside the interface of valve one, just union one end with interface connection, the union other end and the interface connection of valve two.

As a preferable technical scheme, the movable joint is provided with a movable joint nut, and the movable joint nut is arranged at one end of the movable joint.

As a preferable technical scheme of the utility model, the one-way valve is provided with a clamping ring, and the clamping ring is arranged at the inlet end of the one-way valve.

The zero-cold-water heater is characterized in that a cold water inlet and a cold water pipe are arranged, a first valve is provided with a first connector, a second connector and a third connector, the first connector is connected with the cold water pipe, the second connector is connected with the cold water inlet, a one-way valve is arranged inside the third connector, and a clamping ring is fixed on the inner wall of the third connector.

As a preferred technical scheme of the utility model, the second interface is connected with a movable joint, and the other end of the movable joint is connected with a cold water inlet through a movable joint nut.

As a preferred technical scheme, the zero-cold-water heater is further provided with a water return pipe, the valve II is provided with a port IV, a port V and a port VI, the port IV is fixedly connected with the port III through a movable joint, the port V is connected with the water return pipe, and the port VI is connected with a blocking cover.

As a preferred technical scheme of the utility model, the zero-cold-water heater is also provided with a hot water pipe, the first valve is connected to the cold water pipe, the second valve is connected to the hot water pipe, and the third connector is fixedly connected with the sixth connector through a movable connector.

As a preferred technical scheme, the three-way valve assembly is further provided with a circular sealing ring and a sealing flat gasket, the circular sealing ring is arranged at the joint of the movable joint and the interface, and the sealing flat gasket is tightly attached to the end face of the interface.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the one-way valve is additionally arranged on the connecting valve, so that the cooled hot water can only flow to the cold water pipe, the use of cold and hot water is not influenced, and a large amount of water resources are not wasted; in addition, by using the zero-cold-water heater, the zero-cold-water heater is not only realized by a mode of installing the water return pipe, but also the water return pipe can be omitted, so that the installation process is simplified, the installation cost of a user is reduced, and the installation adaptability of the zero-cold-water heater is higher and more practical.

Drawings

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

Fig. 2 is a schematic cross-sectional structure of the present invention.

Fig. 3 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is a schematic structural diagram of embodiment 2 of the present invention.

Wherein the figures include the following reference numerals:

1. the water supply device comprises a first valve 11, a first connector 12, a second connector 13, a third connector 2, a second valve 21, a fourth connector 22, a fifth connector 23, a sixth connector 231, a blocking cover 3, a one-way valve 31, a clamping ring 4, a movable joint 41, a movable joint nut 5, a circular sealing ring 6, a sealing flat gasket 7, a cold water inlet 8, a cold water pipe 9, a hot water pipe 10 and a water return pipe.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-2, the specific implementation of the present invention is as follows: the utility model provides a zero external three-way valve sub-assembly for cold water heater, includes valve 1, valve two 2, check valve 3, union 4, will check valve 3 set up in inside the interface of valve 1, just 4 one ends of union with interface connection, 4 other ends of union and the interface connection of valve two 2. Two different water pipes are communicated through the two valves, so that a circulation channel is formed, and the zero-cold-water function of the water heater is realized.

Furthermore, the union 4 is provided with the union nut 41, and the union nut 41 is arranged at one end of the union 4, so that whether the interface of the connecting valve is matched with the water pipe or not can be connected through the union 4, in the embodiment of the utility model, the interface two 12 and the interface three 13 of the valve one 1 are respectively connected with the union 4, and then the union nut 41 on the union 4 is connected with the cold water inlet 7 and the valve two 2, so that the practicability is higher.

Further, be provided with snap ring 31 at check valve 3 to set up snap ring 31 in the entrance point of check valve 3, set up check valve 3 inside three 13 interfaces again, snap ring 31 is fixed on three 13 inner walls of interfaces, adopt this structure, make check valve 3 firmly fix on the inner wall of three 13 interfaces, under stronger pressure, check valve 3 also can not become flexible, and the case of check valve 3 is opened under the effect of pressure, guarantees that the cold water in the hot-water line 9 flows to cold water pipe 8.

Further, the three-way valve assembly is further provided with a circular sealing ring 5 and a sealing flat gasket 6, the circular sealing ring 5 is arranged at the joint of the movable joint 4 and the interface, the sealing flat gasket 6 is tightly attached to the port face of the interface, the sealing ring is used at each joint for sealing, the sealing performance of water pipe connection is guaranteed, and water leakage is prevented.

The present invention will be described in further detail below by way of specific examples 1 and 2.

The first embodiment is as follows:

as shown in fig. 3-4, in the case of a return pipe 10, the first valve 1 is connected to the cold water pipe 8, and the second valve 2 is connected to the return pipe 10, specifically, the first port 11 of the first valve 1 is connected to the cold water pipe 8, the second port 12 is connected to the cold water inlet 7 of the water heater, the fifth port 22 of the second valve 2 is connected to the return pipe 10, the return pipe 10 is connected to the hot water pipe 9, the sixth port 23 is provided with a blocking cover 231, and finally, the third port 13 of the first valve 1 is connected to the fourth port 21 of the second valve 2, and the third port 13 is provided with a check valve 3, and the inlet end of the check valve 3 faces the second valve 2. After the zero cold water function is started, cold water in the hot water pipe 9 flows into the water return pipe 10 under the action of a water pump in the water heater, flows into the cold water pipe 8 through the check valve 3 at the joint of the water return pipe 10 and the cold water pipe 8, and finally flows into the water heater along the cold water inlet 7 to be reheated.

The second embodiment:

as shown in fig. 5, in the case that there is no return pipe 10, the first valve 1 is connected to the cold water pipe 8, and the second valve 2 is connected to the hot water pipe 9, specifically, the first valve 1 is connected to the middle of the cold water pipe 8, so that the first port 11 and the second port 12 are respectively connected to the cold water pipe 8, the second valve 2 is connected to the middle of the hot water pipe 9, so that the fourth port 21 and the fifth port 22 are respectively connected to the hot water pipe 9, and finally, the third port 13 is connected to the sixth port 23, and similarly, the check valve 3 is disposed inside the third port 13, so that the inlet end of the check valve 3 faces the second valve 2. After the zero cold water function is started, the cold water in the hot water pipe 9 directly flows into the cold water pipe 8 through the one-way valve 3 under the action of the water pump and then flows back to the water heater again for heating.

The external three-way valve assembly for the zero-cold-water heater disclosed by the utility model can realize the zero-cold-water function by selecting different pipeline connection methods under different home decoration conditions, so that the installation adaptability of the water heater is higher, and meanwhile, the installation cost of a user is reduced.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. The utility model provides a zero cold water is external three-way valve sub-assembly for water heater, includes valve (1), valve (2), check valve (3) and union (4), its characterized in that, check valve (3) set up in inside the interface of valve (1), just union (4) one end with interface connection, union (4) other end and the interface connection of valve (2).

2. An external three-way valve assembly for a zero-cold water heater according to claim 1, characterized in that the union (4) is provided with a union nut (41), the union nut (41) being provided at one end of the union (4).

3. An external three-way valve assembly for a zero-cold water heater according to claim 2, characterized in that the check valve (3) is provided with a snap ring (31), the snap ring (31) being provided at the inlet end of the check valve (3).

4. The external three-way valve assembly for the zero-cold water heater according to claim 3, wherein the zero-cold water heater is provided with a cold water inlet (7) and a cold water pipe (8), the first valve (1) is provided with a first connector (11), a second connector (12) and a third connector (13), the first connector (11) is connected with the cold water pipe (8), the second connector (12) is connected with the cold water inlet (7), the one-way valve (3) is arranged inside the third connector (13), and the snap ring (31) is fixed on the inner wall of the third connector (13).

5. The external three-way valve assembly for the zero-cold water heater according to claim 4, wherein the second port (12) is connected with the movable joint (4), and the other end of the movable joint (4) is connected with the cold water inlet (7) through a movable joint nut (41).

6. The external three-way valve assembly for the zero-cold water heater according to claim 5, wherein the zero-cold water heater is further provided with a water return pipe (10), the second valve (2) is provided with a port four (21), a port five (22) and a port six (23), the port four (21) is fixedly connected with the port three (13) through a movable joint (4), the port five (22) is connected with the water return pipe (10), and the port six (23) is connected with a blocking cover (231).

7. The external three-way valve assembly for the zero-cold water heater according to claim 6, wherein the zero-cold water heater is further provided with a hot water pipe (9), the first valve (1) is connected to the cold water pipe (8), the second valve (2) is connected to the hot water pipe (9), and the third port (13) is fixedly connected with the sixth port (23) through a movable joint (4).

8. The external three-way valve assembly for the zero-cold water heater according to claim 1, wherein the three-way valve assembly is further provided with a circular sealing ring (5) and a sealing flat gasket (6), the circular sealing ring (5) is arranged at the joint of the movable joint (4) and the interface, and the sealing flat gasket (6) is tightly attached to the end face of the interface.