Water faucet instant hot water outlet device

Abstract

The utility model relates to the technical field of hot water supply devices, and discloses an instant hot water outlet device of a faucet, which comprises a box body provided with a hot water inlet, a hot water outlet, a cold water inlet and a cold water outlet. A connecting pipe, a hot water outlet pipe and a cold water outlet pipe are fixedly arranged in the box body; two pipe orifices of the connecting pipe are respectively connected with the hot water inlet and the cold water inlet; one pipe orifice of the hot water outlet pipe is connected with the hot water outlet, and the other pipe orifice is communicated with the end of the connecting pipe connected with the hot water inlet; one pipe orifice of the cold water outlet pipe is connected with the cold water outlet, and the other pipe orifice is communicated with the end of the connecting pipe connected with the cold water inlet; an expansion tank, a shield pump and a second one-way valve are sequentially installed on the connecting pipe in the flowing direction of hot water. The hot water outlet pipe is provided with a first one-way valve, and the cold water outlet pipe is provided with a safety valve. A water return pipe does not need to be reserved during decoration, and hot water can be discharged just by installing the device at the tail end of a circulating pipeline, so that laying of pipelines is reduced, and the decoration cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of hot water supply devices, and in particular to a device that provides hot water instantly from a tap. Background Technology

[0002] A water return device is a device used to improve the comfort of hot water use and save water resources. Its main function is to ensure that hot water can quickly reach the place where users need it, so as to achieve "hot water available as soon as you turn it on".

[0003] The hot water terminal return device described in announcement number CN214701281U includes a heat source and a mixing faucet at the point of use. A hot water pipe and a cold water pipe are connected between the heat source and the mixing faucet. The cold water pipe is also connected to a tap water supply device. A temperature sensor is installed on the hot water pipe near the mixing faucet. The hot water pipe near the mixing faucet is also connected to the inlet of a circulation pump. The outlet of the circulation pump is connected to the inlet of a one-way valve. The outlet of the one-way valve is connected to the outlet of the cold water pipe near the mixing faucet. The signal output of the temperature sensor is connected to the signal input of a controller. The control signal output of the controller is connected to the control of the circulation pump.

[0004] Based on the above technical features, the problem is that existing water heaters need to be used with a circulation pipe. In order to ensure that hot water is available at all outlets, it is generally necessary to lay a return pipe in advance in the house during the renovation, and at the same time install a return device at the inlet of the water heater. This increases the length of the pipe laying and the renovation cost is high.

[0005] Therefore, it is necessary to solve the above problems by using a faucet-to-hot-water device. Utility Model Content

[0006] The purpose of this utility model is to provide a device that provides hot water instantly from a tap, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a faucet-mounted hot water device, comprising a housing installed at the end of a circulation pipeline, wherein the housing is provided with a hot water inlet, a hot water outlet, a cold water inlet, and a cold water outlet; a connecting pipe, a hot water outlet pipe, and a cold water outlet pipe are fixedly installed inside the housing; the two ends of the connecting pipe are respectively connected to the hot water inlet and the cold water inlet; one end of the hot water outlet pipe is connected to the hot water outlet, and the other end is connected to the end of the connecting pipe connected to the hot water inlet; one end of the cold water outlet pipe is connected to the cold water outlet, and the other end is connected to the end of the connecting pipe connected to the cold water inlet; an expansion tank, a shielded pump, and a second check valve are sequentially installed on the connecting pipe along the flow direction of the hot water; a first check valve is installed on the hot water outlet pipe, and a safety valve is installed on the cold water outlet pipe.

[0008] Preferably, the first end of the circulation pipeline is connected to the water heater, and the circulation pipeline consists of a hot water pipe and a cold water pipe; the hot water pipe is connected to the hot water inlet on the tank, and the cold water pipe is connected to the cold water inlet on the tank; the hot water outlet on the tank is connected to the hot water outlet pipe of the water outlet point, and the cold water outlet on the tank is connected to the cold water outlet pipe of the water outlet point.

[0009] Preferably, the hot water pipe, connecting pipe, and hot water outlet pipe are connected by a T-joint; the cold water pipe, connecting pipe, and cold water outlet pipe are connected by another T-joint.

[0010] Preferably, a cold water buffer mechanism is installed on the hot water outlet pipe, the cold water buffer mechanism including a water storage box; the water storage box is located between the hot water outlet pipe and the tee joint connecting the hot water outlet pipe, and the water storage box is connected to the hot water outlet pipe and the tee joint connecting the hot water outlet pipe; a spiral heating tube is fixedly installed inside the water storage box, and the spiral heating tube is connected to the tee joint connecting the hot water outlet pipe.

[0011] Preferably, an overflow pipe is fixedly installed on the box body, and the overflow pipe is connected to the inside of the box body.

[0012] Preferably, a suction cup for fixed installation is fixedly provided on the housing.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] First, this utility model eliminates the need to reserve a return water pipe during renovation. Simply install this device at the end of the circulation pipeline to achieve instant hot water, thereby reducing pipeline laying and lowering renovation costs.

[0015] Secondly, this utility model sets a cold water buffer mechanism on the hot water outlet pipe. When hot water is needed, a portion of the cold water in the hot water pipe enters the cold water buffer mechanism. At this time, the hot water outlet pipe at the water outlet point emits steam but not water. As the hot water in the hot water pipe enters the cold water buffer mechanism, the cold water and hot water mix to form warm water. When the cold water buffer mechanism is full of water, the warm water flows into the hot water outlet pipe through the hot water outlet pipe. At this time, the hot water outlet pipe emits hot water, thus avoiding water waste, and the water flowing out of the hot water outlet pipe is always hot water. Attached Figure Description

[0016] Figure 1 This is a three-dimensional assembly diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the interior of the housing of this utility model;

[0018] Figure 3 This is a schematic diagram of the cold water buffer mechanism of this utility model.

[0019] In the diagram: 1. Water heater; 2. Hot water pipe; 3. Cold water pipe; 4. Housing; 5. Overflow pipe; 6. Cold water outlet pipe; 7. Hot water outlet pipe; 8. Faucet; 9. First check valve; 10. Safety valve; 11. Expansion tank; 12. Second check valve; 13. Connecting pipe; 14. Shielded pump; 15. Spiral heating element; 16. Hot water outlet pipe; 17. Cold water outlet pipe; 18. Water storage box. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Example 1: This utility model provides the following... Figures 1 to 3 The illustrated hot water tap device includes a housing 4, which has a hot water inlet, a hot water outlet, a cold water inlet, and a cold water outlet. The housing 4 is installed to the end of a circulation pipe via a suction cup, and the beginning of the circulation pipe is connected to a water heater 1. The hot water source 1 can be a gas water heater, an electric water heater, etc.

[0022] The circulation pipe consists of hot water pipe 2 and cold water pipe 3. Hot water pipe 2 is connected to the hot water inlet on the tank 4, and cold water pipe 3 is connected to the cold water inlet on the tank 4. The hot water outlet on the tank 4 is connected to the hot water outlet pipe 7 of the terminal outlet point, and the cold water outlet on the tank 4 is connected to the cold water outlet pipe 6 of the terminal outlet point.

[0023] The housing 4 is fixedly equipped with a connecting pipe 13, a hot water outlet pipe 16, and a cold water outlet pipe 17.

[0024] One end of connecting pipe 13 is connected to the hot water inlet, and the other end is connected to the cold water inlet. Connecting pipe 13 connects the hot water pipe 2 and the cold water pipe 3. Hot water in connecting pipe 13 flows from the end connected to the hot water inlet to the end connected to the cold water inlet. Connecting pipe 13 is a U-shaped pipe and is fixedly connected to the housing 4.

[0025] An expansion tank 11, a shielded pump 14, and a second one-way valve 12 are sequentially fixed on the middle section of the connecting pipe 13 along the direction of hot water flow.

[0026] One end of the hot water outlet pipe 16 is connected to the hot water outlet, and the other end is connected to the end of the connecting pipe 13 that is connected to the hot water inlet. The hot water outlet pipe 16, the connecting pipe 13, and the hot water pipe 2 are connected by a tee joint. At the same time, the hot water outlet pipe 16 is connected to the hot water outlet pipe 7.

[0027] The hot water outlet pipe 16 is a right-angle bend, and a first one-way valve 9 is fixedly installed on the hot water outlet pipe 16 to prevent hot water backflow.

[0028] One port of the cold water outlet pipe 17 is connected to the cold water outlet, and the other port is connected to the end of the connecting pipe 13 that is connected to the cold water inlet. The cold water outlet pipe 17, the connecting pipe 13, and the cold water pipe 3 are connected through another tee joint, and the cold water outlet pipe 17 is also connected to the cold water outlet pipe 6.

[0029] The cold water outlet pipe 17 is also a right-angle bend, and a safety valve 10 is fixedly installed on the cold water outlet pipe 17 for pressure relief.

[0030] An overflow pipe 5 is fixedly installed on the housing 4, and the overflow pipe 5 is connected to the inside of the housing 4. This is to ensure that the inside of the housing 4 does not leak when the pipe leaks.

[0031] The end outlet point of the circulation pipeline of this utility model is a faucet 8.

[0032] Working principle of Example 1: When cold water comes out of faucet 8, the cold water flows into connecting pipe 13 through cold water pipe 3. Then, the cold water flows into cold water outlet pipe 17 through the tee connector, and finally, the cold water flows out of faucet 8 through cold water outlet pipe 6. During this process, due to the second one-way valve 12 on connecting pipe 13, the cold water will not flow to the shielded pump 14.

[0033] When hot water comes out of faucet 8, water heater 1 detects the hot water signal. This part is existing technology and will not be described in detail here. After that, water heater 1 turns on to heat water, and at the same time, shielded pump 14 starts. Shielded pump 14 gradually drives the cold water in hot water pipe 2, connecting pipe 13 and cold water pipe 3 to flow back into water heater 1.

[0034] After a few seconds, hot water flows from hot water pipe 2 into connecting pipe 13, then from connecting pipe 13 into cold water pipe 3, and finally back into water heater 1 via cold water pipe 3. During this process, the hot water in connecting pipe 13 flows through the tee connector into hot water outlet pipe 16, then from hot water outlet pipe 16 into hot water outlet pipe 7, and finally flows out from faucet 8 via hot water outlet pipe 7. This achieves instant hot water supply.

[0035] Example 2: This example adds a cold water buffer mechanism to Example 1. The cold water buffer mechanism includes a water storage box 18. The water storage box 18 is located between the hot water outlet pipe 16 and the tee joint connected to the hot water outlet pipe 16. The water storage box 18 connects the hot water outlet pipe 16 and the tee joint connected to the hot water outlet pipe 16. A spiral heating tube 15 is fixedly installed inside the water storage box 18, and the spiral heating tube 15 is connected to the tee joint connected to the hot water outlet pipe 16.

[0036] The working principle of Example 2: When hot water comes out of faucet 8, a portion of the cold water in hot water pipe 2 flows into spiral heating pipe 15 through the T-connector, and then flows into water storage box 18 through spiral heating pipe 15. During this process, faucet 8 releases air but does not release water.

[0037] After hot water flows into connecting pipe 13, it flows into spiral heating pipe 15 through tee connector. At this time, spiral heating pipe 15 heats the cold water in water storage box 18 through the pipe body, while hot water in spiral heating pipe 15 flows into water storage box 18.

[0038] Subsequently, the cold and hot water in the water storage box 18 mix to form warm water. As more and more hot water accumulates in the water storage box 18, the warm water gradually fills the water storage box 18. Then, the warm water flows into the hot water outlet pipe 7 through the hot water outlet pipe 16, and finally flows out of the faucet 8 through the hot water outlet pipe 7. This ensures that when the faucet 8 dispenses hot water, it is always hot water.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tap, i.e. a hot water outlet device, comprising a box (4) to be mounted to the end of a circulation line, characterized in that: The box (4) is provided with a hot water inlet, a hot water outlet, a cold water inlet and a cold water outlet; the box (4) is fixedly provided with a connecting pipe (13), a hot water outlet pipe (16) and a cold water outlet pipe (17); two pipe openings of the connecting pipe (13) are connected with the hot water inlet and the cold water inlet respectively; one pipe opening of the hot water outlet pipe (16) is connected with the hot water outlet, and the other pipe opening is communicated with the end of the connecting pipe (13) connected with the hot water inlet; one pipe opening of the cold water outlet pipe (17) is connected with the cold water outlet, and the other pipe opening is communicated with the end of the connecting pipe (13) connected with the cold water inlet; the connecting pipe (13) is sequentially provided with an expansion tank (11), a shield pump (14) and a second one-way valve (12) along the flow direction of hot water; the hot water outlet pipe (16) is provided with a first one-way valve (9), and the cold water outlet pipe (17) is provided with a safety valve (10).

2. The faucet instant hot water device of claim 1, wherein: The head end of the circulating pipeline is connected with the water heater (1), and the circulating pipeline is composed of a hot water pipe (2) and a cold water pipe (3); the hot water pipe (2) is connected with the hot water inlet of the box (4), and the cold water pipe (3) is connected with the cold water inlet of the box (4); the hot water outlet of the box (4) is externally connected with the hot water outlet pipe (7) of the water outlet point, and the cold water outlet of the box (4) is externally connected with the cold water outlet pipe (6) of the water outlet point.

3. The faucet instant hot water device of claim 2, wherein: The hot water pipe (2), the connecting pipe (13) and the hot water outlet pipe (16) are communicated through a three-way joint; the cold water pipe (3), the connecting pipe (13) and the cold water outlet pipe (17) are communicated through another three-way joint.

4. The faucet instant hot water device of claim 3, wherein: The hot water outlet pipe (16) is provided with a cold water buffering mechanism, and the cold water buffering mechanism comprises a water storage box (18); the water storage box (18) is located between the hot water outlet pipe (16) and the three-way joint communicated by the hot water outlet pipe (16) and the hot water outlet pipe (16), and the water storage box (18) is communicated with the three-way joint communicated by the hot water outlet pipe (16) and the hot water outlet pipe (16); a spiral heating pipe (15) is fixedly arranged in the water storage box (18), and the spiral heating pipe (15) is communicated with the three-way joint communicated by the hot water outlet pipe (16) and the hot water outlet pipe (16).

5. The faucet instant hot water device of claim 1, wherein: The box (4) is fixedly provided with an overflow pipe (5) communicated with the inside of the box (4).

6. The faucet instant hot water device of claim 1, wherein: The box (4) is fixedly provided with a suction cup for fixed installation.

Images