CN117366274A - Water outlet device and water heater - Google Patents

Abstract

The embodiment of the application provides a water outlet device and a water heater, wherein the water outlet device comprises a first pipe body, a partition piece, a flow dividing valve and a switching valve; the first end of the first pipe body is provided with a water inlet and a water return port, and the second end of the first pipe body is provided with a water outlet; the partition piece is arranged in the inner cavity of the first pipe body and is used for dividing the inner cavity of the first pipe body into a first flow channel and a second flow channel, the first end of the first flow channel is communicated with the water inlet, the first end of the second flow channel is communicated with the water return port, the second end of the first flow channel is communicated with the second end of the second flow channel, and the first flow channel and the second flow channel are both communicated with the water outlet; the switching valve is arranged at the water outlet and is configured to open the water outlet when water is returned and close the water outlet when water is discharged. The water outlet device and the water heater provided by the application reduce the volume of the device and save the installation space.

Description

Water outlet device and water heater

The present application claims priority from the chinese patent office, application number 202210757672.1, application name "water outlet device and water heater," filed on 30 th month 2022, the entire contents of which are incorporated herein by reference.

Technical Field

The embodiment of the application relates to the technical field of water heaters, in particular to a water outlet device and a water heater.

Background

The water heater is a device for changing the temperature of cold water into hot water in a certain time by various physical principles. According to the principle, the water heater can be divided into an electric water heater, a gas water heater, a solar water heater, a magnetic energy water heater, an air energy water heater, a heating water heater and the like.

In the related art, the water outlet end of the water tank of the water heater is communicated with a water using place (such as a shower head, a tap and the like) through a water outlet pipe. After the user finishes using water, a part of water can remain in the water outlet pipe. When the interval time between the current water consumption and the previous water consumption of the user is longer, the temperature of the water remained in the water outlet pipe is lower, so that the water with lower temperature flows out firstly when the user uses the water. In order to enable a user to use hotter water as soon as possible, a return pipe can be arranged between the water outlet end of the water outlet pipe and the water inlet end of the water tank of the water heater. When a user uses water, the water with lower temperature remained in the water outlet pipe flows into the water tank of the water heater through the water return pipe, and after a certain time, the water with higher temperature in the water outlet pipe flows out from the water use position.

However, the related art return pipe has a long length and occupies a large space.

Disclosure of Invention

The embodiment of the application provides a water outlet device and a water heater, which are used for solving the problems that the length of a water return pipe in the related technology is longer and the water return pipe occupies a larger space.

In order to achieve the above purpose, the present application provides the following technical solutions:

one aspect of an embodiment of the present application provides a water outlet device including a first pipe body, a partition, a diverter valve, and a diverter valve; the first end of the first pipe body is provided with a water inlet and a water return port, and the second end of the first pipe body is provided with a water outlet; the partition piece is arranged in the inner cavity of the first pipe body and is used for dividing the inner cavity of the first pipe body into a first runner and a second runner, the first end of the first runner is communicated with the water inlet, the first end of the second runner is communicated with the water return port, the second end of the first runner is communicated with the second end of the second runner, and the first runner and the second runner are communicated with the water outlet; the switching valve is arranged at the water outlet; the switching valve is configured to open the water outlet when backwater and to close the water outlet when water is discharged, such that the first flow passage and the second flow passage are connected in series between the water inlet and the backwater port.

In one possible implementation manner, the first end of the partition has a communication hole that communicates the first end of the first flow channel with the first end of the second flow channel; the first pipe body is provided with a flow dividing valve; the diverter valve is configured to open the return water port and close the communication hole when returning water, and to close the return water port and open the communication hole when discharging water.

In one possible implementation manner, the axis of the water return port is perpendicular to the axis of the first pipe body, and the axis of the water return port is coincident with the axis of the communication hole; the diverter valve wears to locate first body, and at least part the diverter valve is followed the axis direction of return water mouth is in the intracavity of first body slides, the diverter valve has to close the intercommunicating pore and open the first position of return water mouth, and open the intercommunicating pore and close the second position of return water mouth.

In one possible implementation manner, the water return device further comprises a second pipe body, wherein a first opening, a second opening and a total outlet are communicated with the inner cavity of the second pipe body, the first opening is communicated with the water return opening, the axes of the first opening, the second opening and the water return opening coincide, and the total outlet is arranged between the first opening and the second opening; at least a portion of the diverter valve is positioned in the interior cavity of the second tube body, and when the diverter valve is in the first position, at least a portion of the diverter valve closes the second opening and opens the first opening; at least a portion of the diverter valve opens the second opening and closes the first opening when the diverter valve is in the second position.

In one possible implementation manner, the inner wall of the first pipe body or the second pipe body is provided with a groove, and the flow dividing valve is slidably arranged in the groove.

In one possible implementation manner, the diverter valve comprises a rod body and a plurality of plungers, wherein the plungers are arranged at intervals along the axis of the water return port, and two adjacent plungers are connected through the rod body; the inner surface of the second pipe body comprises at least one straight line section and at least one inclined section, the straight line section extends along the axial direction of the water return port, and the inclined section is connected with the straight line section and is inclined relative to the straight line section; at least one of the plungers is located within the second tube and has a closed position and an open position; when the plunger is in the closed position, the plunger is abutted with the straight line segment to close an opening formed in the straight line segment; a space for liquid to flow is formed between the plunger and the inclined section when the plunger is in the open position to open an opening formed in the straight section;

the opening formed in the straight line segment is: the second opening or the first opening.

In one possible implementation manner, the shape of the partition is tubular, the axis of the partition is parallel to or coincides with the axis of the first pipe body, the inner cavity of the partition forms the first flow channel, and the second flow channel is formed between the partition and the inner surface of the first pipe body; the partition has a first open end in communication with the water inlet and a second open end in communication with the water outlet.

In one possible implementation manner, the second opening end of the partition is higher than the second end of the first pipe body, and a gap for liquid to flow is formed between the second opening end of the partition and the second end of the first pipe body, and the gap is communicated between the first flow channel and the second flow channel.

In one possible implementation manner, a connecting plate is arranged between the outer surface of the partition and the inner surface of the first pipe body, and a plurality of through holes penetrating through the connecting plate are formed in the connecting plate.

Another aspect of the embodiments of the present application provides a water heater, including a water tank and a water outlet device as described above, where a water outlet end of the water tank is communicated with a water inlet of a first pipe body of the water outlet device, and a water inlet end of the water tank is communicated with a water return port of the first pipe body of the water outlet device.

According to the water outlet device and the water heater, the first pipe body is arranged, the first end of the first pipe body is provided with the water inlet and the water return port, the second end of the first pipe body is provided with the water outlet, the inner cavity of the first pipe body can be divided into the first flow channel and the second flow channel by the partition piece arranged in the inner cavity of the first pipe body, the change-over valve is arranged at the water outlet, the change-over valve is arranged at the water return port, when a user uses water, the change-over valve is firstly in a state of closing the water outlet, the change-over valve is in a state of opening the water return port, hot water flowing out of the water outlet end of the water tank of the water heater can enter the first flow channel through the water inlet of the first pipe body and push cold water remained in the first pipe body to flow out of the water return port after passing through the first flow channel and the second flow channel in sequence; after a certain time or after the cold water in the first pipe body is discharged, the switching valve may open the water outlet, and the diverting valve may close the water return port, so that the hot water entering from the first flow path may flow out from the water outlet of the first pipe body to supply to the user. Compared with the prior art, at least two pipes are adopted, the device has the advantages that the size is reduced, and the installation space is saved.

In addition to the technical problems, technical features constituting the technical solutions, and beneficial effects caused by the technical features of the technical solutions described above in the embodiments of the present application, other technical problems that can be solved in the embodiments of the present application, other technical features included in the technical solutions, and beneficial effects caused by the technical features, further detailed descriptions will be made in the detailed description of the embodiments.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a schematic diagram of a related art water heater in a backwater state;

FIG. 2 is a schematic view of the water heater of FIG. 1 in a water outlet state;

FIG. 3 is a cross-sectional view of a water outlet device provided in an embodiment of the present application in a water return state;

FIG. 4 is a cross-sectional view of the water outlet device shown in FIG. 3 in a water outlet state;

FIG. 5 is a transverse cross-sectional view of the first tubular body shown in FIG. 3;

FIG. 6 is a cross-sectional view of another first tubular body provided in an embodiment of the present application;

FIG. 7 is a cross-sectional view of another water outlet device according to an embodiment of the present disclosure in a backwater state;

fig. 8 is a cross-sectional view of the water outlet device shown in fig. 7 in a water outlet state;

FIG. 9 is a cross-sectional view of yet another water outlet device according to an embodiment of the present disclosure in a backwater state;

fig. 10 is a cross-sectional view of the water outlet device shown in fig. 9 in a water outlet state.

Reference numerals illustrate:

100. a first tube body; 110. a water inlet; 120. a water return port; 130. a water outlet; 140. a cover plate;

200. a partition; 210. a communication hole; 220. a connecting plate;

310. a first flow passage; 320. a second flow passage;

400. a switching valve;

500. a diverter valve; 510. a rod body; 520. a first plunger; 530. a second plunger; 540. a third plunger;

600. a second tube body; 610. a first opening; 620. a second opening; 630. a general outlet; 640. a straight line segment; 650. an inclined section;

700. a groove;

800. water is used;

910. a water tank; 920. a water outlet pipe; 930. a water return pipe; 940. a valve; 950. water is used.

Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

Detailed Description

As described in the background art, the related art water heater has the problem that the length of the return pipe is long, occupying a large space. The inventors have found that the cause of this problem is:

fig. 1 is a schematic view of a related art water heater in a backwater state, fig. 2 is a schematic view of the water heater shown in fig. 1 in a water outlet state, and arrows in fig. 1 and 2 indicate a flow direction of liquid. Referring to fig. 1 and 2, a water outlet end of a water tank 910 of a water heater is communicated with a water using position 950 through a water outlet pipe 920, a water return pipe 930 is communicated with a position of the water outlet pipe 920 close to the water using position 950, and one end of the water return pipe 930 away from the water outlet pipe 920 is communicated with a water inlet end of the water tank 910 of the water heater. Referring to fig. 1, in the backwater state, the valve 940 may connect the water outlet pipe 920 with the backwater pipe 930, so that hot water flowing out from the water outlet of the water heater may push cold water remaining in the water outlet pipe 920 into the water inlet of the water heater through the backwater pipe 930. After a certain time or when the temperature of the liquid flowing in the water outlet pipe 920 reaches a certain value, the connection between the water outlet pipe 920 and the water return pipe 930 can be closed through the valve 940, and the water outlet pipe 920 and the water use position 950 are conducted, so that the hot water in the water outlet pipe 920 flows out from the water use position 950. However, when the water heater is installed, the positions of the two pipelines, namely the water return pipe 930 and the water outlet pipe 920, need to be reserved, so that the water heater has larger size and is difficult to install.

To the above technical problem, the present application provides a water outlet device, where a first pipe body of the water outlet device may be divided into a first flow channel and a second flow channel by a partition, a first end of the first flow channel may be communicated with a water inlet end of a water heater, a first end of the second flow channel may be communicated with a water outlet end of the water heater, and a second end of the second flow channel may be communicated with a second end of the first flow channel. In a backwater state, the connection between the second end of the first pipe body and the water position can be disconnected through the switching valve, the backwater port can be communicated with the second flow passage through the flow dividing valve, and the first flow passage and the second flow passage can be connected in series between the water outlet end and the water inlet end of the water heater; when the water is in a water outlet state, the second end of the first pipe body can be communicated with a water using position through the switching valve, and the water return port is disconnected with the water inlet end of the water heater through the flow dividing valve. Therefore, the water return state and the water outlet state of the water heater can be converted by adopting the first pipe body, so that the installation space of the water heater is saved, and the installation of the water heater is facilitated.

It should be noted that, the water outlet device provided in the embodiment of the present application may be used in a water heater, and may also be used in a device needing water return, such as a purifier, and the embodiment of the present application only uses the water outlet device applied in the water heater as an example for illustration, but the present application is not limited thereto. In addition, based on the embodiments herein, all other embodiments that may be obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present application. The following embodiments and features of the embodiments may be combined with each other without conflict.

Fig. 3 is a cross-sectional view of the water outlet device provided in the embodiment of the present application in a water return state, fig. 4 is a cross-sectional view of the water outlet device shown in fig. 3 in a water outlet state, and referring to fig. 3 and fig. 4, the water outlet device provided in the embodiment of the present application may include a first pipe body 100, where the first pipe body 100 may have a first end and a second end that are disposed opposite to each other in an axial direction of the first pipe body. Illustratively, in fig. 3 and 4, the first pipe body 100 extends in a vertical direction (i.e., an axial direction of the first pipe body 100 is disposed in the vertical direction), a first end of the first pipe body 100 may be a top end or an upper end of the first pipe body 100, and a second end of the first pipe body 100 may be a bottom end or a lower end of the first pipe body 100.

In addition, the first end of the first pipe body 100 may have a water inlet 110 and a water return port 120. The water inlet 110 of the first pipe body 100 may be communicated with the water outlet 130 of the water heater, and the water return port 120 of the first pipe body 100 may be communicated with the water inlet 110 of the water heater. The water return port 120 of the first pipe body 100 may be provided with a diverter valve 500, and the diverter valve 500 may be opened and closed by opening and closing the water return port 120 to achieve connection and disconnection between the inner cavity of the first pipe body 100 and the water outlet 130 of the water heater. The second end of the first tube 100 may have a water outlet 130, which outlet 130 may be in communication with a tap, spray, etc. water site 800. The water outlet 130 of the first pipe body 100 may be provided with a switching valve 400, and the switching valve 400 may open and close the water outlet 130 of the first pipe body 100, so that the inner cavity of the first pipe body 100 is opened and closed with the water using place 800.

In order to reduce the volume of the water heater, a partition 200 may be disposed in the inner cavity of the first pipe body 100, the partition 200 may partition the inner cavity of the first pipe body 100 into a first flow passage 310 and a second flow passage 320, a first end (top) of the first flow passage 310 may communicate with the water inlet 110, a first end (top) of the second flow passage 320 may communicate with the water return port 120, and a second end (bottom) of the first flow passage 310 may communicate with a second end (bottom) of the second flow passage 320.

Referring to fig. 3, when a user uses water, the water heater is in a backwater state. At this time, the switching valve 400 may close the water outlet 130 of the first pipe body 100. The hot water flowing out from the water outlet end of the water tank of the water heater can enter the first end of the first flow channel 310 through the water inlet 110 of the first pipe body 100, enter the second end of the second flow channel 320 through the second end of the first flow channel 310, enter the water return port 120 through the first end of the second flow channel 320, and enter the water tank of the water heater through the water return port 120 and the water inlet 110 of the water heater. That is, the first flow path 310 and the second flow path 320 are connected in series between the water outlet 130 of the water heater and the water inlet 110 of the water heater so as to push the cold water in the first pipe body 100 into the water tank of the water heater using the hot water.

Referring to fig. 4, after a certain time or after the temperature of the liquid in the first pipe body 100 reaches a certain value, the water heater may be in a water outlet state. At this time, the switching valve 400 may open the water outlet 130 of the first pipe body 100. Hot water flowing out of the water outlet end of the water tank of the water heater may enter the first end of the first flow passage 310 through the water inlet 110 of the first pipe body 100, and flow out to the water use 800 from the water outlet 130 of the first pipe body 100 through the second end of the first flow passage 310.

In conclusion, compare in the correlation technique and adopt two piece at least pipes to realize the return water, the play water installation that this application embodiment provided has small, the space that occupies is little, the simple advantage of installation.

Several possible arrangements of the separator 200 are described below:

fig. 5 is a transverse cross-sectional view of the first pipe body 100 shown in fig. 3. Referring to fig. 3-5, in one possible arrangement of the separator 200, the separator 200 may be tubular in shape, and the axis of the separator 200 may be parallel or coincident with the axis of the first tubular body 100. The inner cavity of the partition 200 may form a first flow passage 310, and a second flow passage 320 may be formed between the partition 200 and the inner surface of the first pipe body 100. That is, the separator 200 may divide the inner cavity of the first tube body 100 into the first flow channel 310 and the second flow channel 320 nested with each other. The partition 200 may have a first opening end and a second opening end, that is, both ends of the partition 200 in the axial direction thereof are provided in an opening. The first open end of the partition 200 may communicate with the water inlet 110, and the second open end of the partition 200 may communicate with the water outlet 130.

In order to improve the connection strength between the spacer 200 and the inner surface of the first pipe body 100, referring to fig. 5, a connection plate 220 is disposed between the outer surface of the spacer 200 and the inner surface of the first pipe body 100, and the connection plate 220 is provided with a plurality of through holes penetrating the connection plate 220. The connection plates 220 may be plural, and the plural connection plates 220 may be arranged at intervals in the circumferential direction of the separator 200, i.e., there may be a distance in the circumferential direction of the separator 200 between adjacent two connection plates 220. In addition, the plurality of connection plates 220 may divide the second flow path 320 into a plurality of spaces, and adjacent two spaces may communicate through holes provided on the connection plates 220. Fig. 5 illustrates that the connection plates 220 are four, and the four connection plates 220 may divide the second flow path 320 into four spaces. Of course, fig. 5 is merely an example, and the number of the connection plates 220 is not particularly limited.

In fig. 3 to 5, the first flow channel 310 is formed by the inner cavity of the partition member 200, and the second flow channel 320 is formed between the partition member 200 and the first pipe body 100, that is, the second flow channel 320 is sleeved outside the first flow channel 310. Of course, the second flow channel 320 may be formed in the inner cavity of the partition 200, and the first flow channel 310 may be formed between the partition 200 and the first pipe body 100, that is, the first flow channel 310 is sleeved outside the second flow channel 320.

Fig. 6 is a cross-sectional view of another first pipe body 100 according to an embodiment of the present application. Referring to fig. 6, the separator 200 may have a plate shape, and the separator 200 may extend along an axial direction of the first tube body 100 and serve to divide an inner cavity of the first tube body 100 into a first flow passage 310 and a second flow passage 320 that are disposed opposite to each other. Of course, in order to enhance the strength of the partition 200, a support plate may be provided between the partition 200 and the inner surface of the first pipe body 100, and the extension direction of the support plate may be perpendicular to the arrangement direction of the partition 200, and the support plate may be used to partition the first flow passage 310 and/or the second flow passage 320 into a plurality of spaces, and adjacent two spaces may be communicated through a connection hole provided on the support plate.

Fig. 7 to 10 are schematic views of the water outlet device when the separator 200 is plate-shaped. Referring to fig. 3 and 4, and 7-10, regardless of whether the partition 200 adopts any of the above-mentioned two structures, in order to facilitate the liquid in the second flow path 320 to be guided out of the return water port 120, the first end of the first pipe body 100 may be provided with a cover plate 140, and the cover plate 140 may be provided with a water outlet 130 communicating with the first flow path 310. The water return port 120 may be disposed on the cover plate 140, and the water return port 120 may be disposed on a wall of the first pipe body 100 as shown in fig. 3 and 4. When the return water port 120 is provided in the pipe wall, there may be advantages in facilitating control of the diverter valve 500, as described in more detail below.

In addition, in order to achieve communication between the second end of the first flow passage 310 and the second end of the second flow passage 320, alternatively, the second end of the separator 200 may be higher than the second end of the first pipe body 100 as shown in fig. 3 and 4, and fig. 7 to 10, and a gap for flowing liquid may be formed between the second end of the first pipe body 100. The gap may be in communication between the first flow channel 310 and the second flow channel 320. Of course, the second end of the first flow channel 310 and the second end of the second flow channel 320 may be communicated through a through hole by providing a through hole communicating the first flow channel 310 and the second flow channel 320 at the second end of the separator 200. When the separator 200 is tubular in shape as shown in fig. 3-5, the through-hole may be provided in the wall of the second end of the separator 200. When the shape of the separator 200 is a plate shape as shown in fig. 6 to 9, the through hole may penetrate the second end of the separator 200.

With continued reference to fig. 3 and 4, and fig. 7 to 10, in order to avoid that water in the first pipe body 100 flows out from the water return port 120 when the water heater is in the water outlet state, the water outlet device provided in the embodiment of the present application may further include a diverter valve 500, where the diverter valve 500 may be disposed on the first pipe body 100, and may open the water return port 120 of the first pipe body 100 when water is returned, and close the water return port 120 of the first pipe body 100 when water is discharged.

In addition, in order to increase the flow rate of the first pipe body 100 at the time of water outflow, the first end (tip) of the partition 200 may be provided with a communication hole 210 (shown in fig. 4, 7, 8, and 10), and the communication hole 210 may communicate the first end of the first flow passage 310 with the first end of the second flow passage 320. When the water heater is in the water outlet state as shown in fig. 4, the communication hole 210 may be in an open state, hot water flowing into the first end of the first passage may be divided into two parts, one part may flow out of the second end of the first flow passage 310, the other part may enter the second flow passage 320 through the communication hole 210 and flow out of the second end of the second flow passage 320, and the hot water of the two parts may be collected at the second end of the first pipe body 100 and flow out of the water outlet 130 of the first pipe body 100 to the water use site 800.

To simplify the control, the flow dividing valve 500 may simultaneously realize control of the water return port 120 and the communication hole 210. Alternatively, the water return port 120 may be provided at a wall of the first end of the first pipe body 100, i.e., an axis of the water return port 120 may be perpendicular to an axis of the first pipe body 100. The axis of the return water port 120 may also coincide with the axis of the communication hole 210, i.e., the return water port 120 may be disposed opposite the communication hole 210. The diverter valve 500 may be disposed through the first pipe body 100, and at least a portion of the diverter valve 500 may slide in the inner cavity of the first pipe body 100 along the axial direction of the water return port 120. The diverting valve 500 may have a first position closing the communication hole 210 and opening the return water port 120, and a second position opening the communication hole 210 and closing the return water port 120. That is, upon return water, the diverter valve 500 may be in the first position; the diverter valve 500 may be in the second position when water is being discharged.

It should be noted that, in order to facilitate guiding the movement of the diverter valve 500, the inner wall of the first pipe body 100 or the second pipe body 600 may be provided with a groove 700, and the diverter valve 500 may be slidably disposed in the groove 700. In fig. 3 and 4, the first pipe body 100 is illustrated with a groove 700. Fig. 3 and 4 illustrate an example in which the second flow path 320 is provided outside the first flow path 310. The second flow passage 320 may be in direct communication with the return water port 120. When the first flow channel 310 is sleeved outside the second flow channel 320, the first end of the first pipe body 100 may be provided with the cover plate 140, and the water inlet 110 may penetrate through the cover plate 140 and may be communicated with the first flow channel 310. The first end of the tubular separator 200 may be connected with a branch pipe, which may be perpendicular to the axis of the separator 200, and which may connect the first open end of the separator 200 with the water return port 120 provided on the wall of the first pipe body 100.

When the water heater is used for discharging water, a running water pipe needs to be started to supplement water for a water tank of the water heater. For ease of control, the diverter valve 500 may also switch on the mains and may control the opening of the mains. Referring to fig. 3 and 4, and fig. 7 to 10, the water outlet device provided in the embodiment of the present application may further include a second pipe body 600, and an inner cavity of the second pipe body 600 may be communicated with the first opening 610, the second opening 620, and the total outlet 630. The first opening 610 may be in communication with the return water port 120, the second opening 620 may be in communication with a tap water pipe, and the total outlet 630 may be in communication with the water inlet 110 of the water heater. The axis of the first opening 610, the axis of the second opening 620, and the axis of the return water port 120 may coincide, and the total outlet 630 may be disposed between the first opening 610 and the second opening 620. At least a portion of the shunt valve 500 is located in the interior cavity of the second tube 600.

When the flow dividing valve 500 is in the first position as shown in fig. 3, 7 and 9, the flow dividing valve 500 may close the second opening 620, open the first opening 610 (or the return water port 120), and close the communication hole 210 provided at the first end of the partition 200, so that the liquid flows in the direction as shown by the arrows in fig. 3, 7 and 9 to complete the return water.

When the flow dividing valve 500 is in the second position as shown in fig. 4, 8 and 10, the flow dividing valve 500 may open the first opening 610, close the second opening 620 (or the return water port 120), and open the communication hole 210 provided at the first end of the partition 200, so that the liquid flows in the direction as shown by the arrows in fig. 4, 8 and 10 to complete the water outflow. That is, the hot water flowing out of the water heater may flow into the water use site 800 through the water inlet 110 of the first pipe body 100, the first flow passage 310, the second flow passage 320, and the water outlet 130 of the first pipe body 100. The water from the tap water pipe can flow into the water inlet end of the water tank of the water heater through the second opening 620 of the second pipe body 600 and the total outlet 630 of the second pipe body 600.

Referring to fig. 3 and 4, and fig. 7-10, the diverter valve 500 may optionally include a stem 510 and a plurality of plungers. A plurality of plungers may be disposed at intervals along the axis of the water return port 120, and adjacent two plungers may be connected through the rod body 510.

Illustratively, in fig. 3 and 4, and fig. 9 and 10, a plurality of plungers are illustrated as including a first plunger 520, a second plunger 530, and a third plunger 540. Wherein, a rod body 510 is fixed between the first plunger 520 and the second plunger 530, and a rod body 510 is fixed between the second plunger 530 and the third plunger 540, and the first plunger 520 is positioned in the first pipe body 100 and is used for opening and closing the communication hole 210 provided at the partition 200. The second plunger 530 and the third plunger 540 are both located in the second pipe body 600, and the second plunger 530 is used for opening and closing the first opening 610 of the second pipe body 600 (or the water return port 120 of the first pipe body 100), and the third plunger 540 is used for opening and closing the second opening 620 of the second pipe body 600.

Another exemplary embodiment is illustrated in fig. 7 and 8, wherein the plurality of plungers includes a first plunger 520 and a second plunger 530. Wherein, a rod body 510 is fixed between the first plunger 520 and the second plunger 530, the first plunger 520 is positioned in the first pipe body 100, and is used for opening and closing the communication hole 210 provided in the partition 200 and the water return port 120 of the first pipe body 100. The second plunger 530 is located in the second tube 600 and serves to open and close the second opening 620 of the second tube 600.

Referring to fig. 3 and 4, and 7 to 10, the inner surface of the second pipe body 600 may include at least one straight line segment 640 and at least one inclined segment 650, the straight line segment 640 may extend along the axial direction of the return water port 120, and the inclined segment 650 may be connected to the straight line segment 640 and may be inclined with respect to the straight line segment 640. At least one plunger may be located within the second tube 600 and have a closed position and an open position. When the plunger is in the closed position, the plunger abuts the linear segment 640 to close the opening formed in the linear segment 640; when the plunger is in the open position, a space is formed between the plunger and the inclined section 650 for the flow of liquid to open the opening formed in the straight section 640.

For example, in fig. 3 and 4, fig. 9 and 10, the second tube 600 may have two sets of straight segments 640 and inclined segments 650. Wherein the first set may be located on the left side of the second tube 600 and may be mated with the third plunger 540. The second set may be located on the right side of the second tube 600 and may mate with the second plunger 530. Referring to fig. 3 and 9, upon return water, the third plunger 540 may be positioned within the first set of straight segments 640 to close the second opening 620; the second plunger 530 may form a space with the inclined sections 650 of the second group for the liquid to flow to open the first opening 610. Referring to fig. 4 and 10, at the time of water discharge, a space for liquid to flow may be formed between the third plunger 540 and the inclined section 650 of the first group to open the second opening 620; the second plunger 530 may be positioned within the second set of straight segments 640 to close the first opening 610.

As another example, in fig. 7 and 8, the second tube 600 may have a set of straight segments 640 and sloped segments 650, and the set may mate with the third plunger 540. Referring to fig. 7, upon return water, the third plunger 540 may be positioned within the straight section 640 to close the second opening 620. Referring to fig. 8, upon water outflow, a space for liquid to flow may be formed between the third plunger 540 and the inclined section 650 to open the second opening 620.

The embodiment of the application may further provide a water heater, which may include a water tank and a water outlet device as mentioned above, wherein the water outlet end of the water tank may be communicated with the water inlet 110 of the first pipe body 100 of the water outlet device, and the water inlet end of the water tank is communicated with the water return port 120 of the first pipe body 100 of the water outlet device.

The terms "upper" and "lower" are used to describe the relative positional relationship of the respective structures in the drawings, and are merely for convenience of description, not to limit the scope of the application, and the relative relationship changes or modifications are considered to be within the scope of the application without any substantial change in technical content.

It should be noted that: in this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Furthermore, in the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. The water outlet device is characterized by comprising a first pipe body, a partition piece, a flow dividing valve and a switching valve;

the first end of the first pipe body is provided with a water inlet and a water return port, and the second end of the first pipe body is provided with a water outlet;

the partition piece is arranged in the inner cavity of the first pipe body and is used for dividing the inner cavity of the first pipe body into a first runner and a second runner, the first end of the first runner is communicated with the water inlet, the first end of the second runner is communicated with the water return port, the second end of the first runner is communicated with the second end of the second runner, and the first runner and the second runner are communicated with the water outlet;

the switching valve is arranged at the water outlet; the switching valve is configured to open the water outlet when backwater and to close the water outlet when water is discharged, such that the first flow passage and the second flow passage are connected in series between the water inlet and the backwater port.

2. The water outlet device according to claim 1, wherein the first end of the partition has a communication hole that communicates the first end of the first flow passage with the first end of the second flow passage;

the first pipe body is provided with a flow dividing valve; the diverter valve is configured to open the return water port and close the communication hole when returning water, and to close the return water port and open the communication hole when discharging water.

3. The water outlet device according to claim 2, wherein an axis of the water return port is perpendicular to an axis of the first pipe body, and an axis of the water return port coincides with an axis of the communication hole;

the diverter valve wears to locate first body, and at least part the diverter valve is followed the axis direction of return water mouth is in the intracavity of first body slides, the diverter valve has to close the intercommunicating pore and open the first position of return water mouth, and open the intercommunicating pore and close the second position of return water mouth.

4. A water outlet device according to claim 3, further comprising a second tube body, wherein the inner cavity of the second tube body is communicated with a first opening, a second opening and a total outlet, the first opening is communicated with the water return opening, the axes of the first opening, the second opening and the water return opening coincide, and the total outlet is arranged between the first opening and the second opening;

at least a portion of the diverter valve is positioned in the interior cavity of the second tube body, and when the diverter valve is in the first position, at least a portion of the diverter valve closes the second opening and opens the first opening; at least a portion of the diverter valve opens the second opening and closes the first opening when the diverter valve is in the second position.

5. The water outlet device according to claim 4, wherein a groove is formed in the inner wall of the first pipe body or the second pipe body, and the diverter valve is slidably disposed in the groove.

6. The water outlet device according to claim 4, wherein the flow dividing valve comprises a rod body and a plurality of plungers, the plungers are arranged at intervals along the axis of the water return port, and two adjacent plungers are connected through the rod body;

the inner surface of the second pipe body comprises at least one straight line section and at least one inclined section, the straight line section extends along the axial direction of the water return port, and the inclined section is connected with the straight line section and is inclined relative to the straight line section;

at least one of the plungers is located within the second tube and has a closed position and an open position; when the plunger is in the closed position, the plunger is abutted with the straight line segment to close an opening formed in the straight line segment; a space for liquid to flow is formed between the plunger and the inclined section when the plunger is in the open position to open an opening formed in the straight section;

the opening formed in the straight line segment is: the second opening or the first opening.

7. The water outlet device according to any one of claims 1 to 6, wherein the separator is tubular in shape, an axis of the separator is parallel to or coincident with an axis of the first pipe body, an inner cavity of the separator forms the first flow passage, and the second flow passage is formed between the separator and an inner surface of the first pipe body;

the partition has a first open end in communication with the water inlet and a second open end in communication with the water outlet.

8. The water outlet device of claim 7, wherein the second open end of the partition is higher than the second end of the first pipe body, and a gap for flowing the liquid is formed between the second open end of the partition and the second end of the first pipe body, and the gap is communicated between the first flow passage and the second flow passage.

9. The water outlet device of claim 7, wherein a connection plate is provided between the outer surface of the partition and the inner surface of the first pipe body, and the connection plate is provided with a plurality of through holes penetrating the connection plate.

10. A water heater, comprising a water tank and a water outlet device according to any one of claims 1-9, wherein the water outlet end of the water tank is communicated with the water inlet of the first pipe body of the water outlet device, and the water inlet end of the water tank is communicated with the water return port of the first pipe body of the water outlet device.