Faucet and drinking equipment

Abstract

The utility model discloses a faucet which comprises a central pipe (1) for normal-temperature water to flow through, a water outlet nozzle (12) is arranged at the bottom end of the central pipe (1), and the faucet is characterized in that an outer cylinder (2) is sleeved on the periphery of the central pipe (1), and a flow channel (20) for hot water to flow through is formed between the inner peripheral wall of the outer cylinder (2) and the outer peripheral wall of the central pipe (1). The utility model further discloses drinking water equipment applying the faucet. Compared with the prior art, the faucet can sterilize the normal-temperature water nozzle, meanwhile, a user is prevented from being scalded, and hot water is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of drinking water equipment, in particular to a faucet and drinking water equipment. Background Art

[0002] At present, commercial water purifiers are widely used in public places, such as high-speed rail stations, airports, office buildings, classrooms and other places. Especially on campus, the requirements for water quality safety are relatively high. Young students who drink water with excessive bacteria are prone to get sick and diarrhea. In the campus environment, commercial water purifiers are generally installed in places such as corridor tea rooms. The drinking water points are humid and easy to breed bacteria. The bacteria in the water quality of commercial water purifiers will not exceed the standard, but the spouts are exposed to the air for a long time, which is easy to be contaminated with environmental bacteria, and pollute the water quality after a long time.

[0003] Some manufacturers use the method of letting hot water flow through a normal temperature water spout for sterilization. For example, the Chinese patent "A warm water dispenser capable of high temperature sterilization of pipes" with patent application number 202222988699.X turns on the electric water pump when disinfection is required, and at the same time, the solenoid valve starts to cut off the cold water supply at the cold water inlet. The high-temperature hot water in the heating water tank is pumped by the electric water pump through the hot water outlet and the hot water pipeline to the water outlet faucet, and the pipelines and water outlet faucets it passes through are sterilized and disinfected at high temperature while flowing, which ensures complete sterilization and safety.

[0004] However, in the above solution, hot water will be discharged from the normal temperature water nozzle, which may easily scald the user and waste hot water. Utility Model Content

[0005] The first technical problem to be solved by the utility model is to provide a faucet which can sterilize the normal temperature water spout while avoiding scalding the user and saving hot water in view of the current status of the prior art.

[0006] The second technical problem to be solved by the utility model is to provide a drinking water device using the above-mentioned faucet.

[0007] The technical solution adopted by the utility model to solve the first technical problem mentioned above is: a faucet, including a central tube for normal temperature water to flow through, and a water outlet is provided at the bottom end of the central tube, characterized in that an outer cylinder is provided on the outer periphery of the central tube, and a flow channel for hot water to flow through is formed between the inner peripheral wall of the outer cylinder and the outer peripheral wall of the central tube.

[0008] In order to facilitate the formation of the flow channel, at least three guide rings are convexly provided on the inner circumferential wall of the outer cylinder and are arranged at intervals along its axial direction. The inner ring surface of each guide ring abuts against the outer circumferential wall of the central tube and is sealed. An annular flow channel unit is formed between two adjacent guide rings, the central tube and the outer cylinder. Except for the front and rear guide rings, other guide rings have gaps connecting two adjacent flow channel units, so that each flow channel unit constitutes the flow channel.

[0009] In order to avoid hot water leakage, a sealing ring is embedded on the inner ring surface of each guide ring, and is sealed with the outer peripheral wall of the central tube through the sealing ring.

[0010] In order to achieve relative fixation between the central tube, the outer tube and the decorative cover, a decorative cover is provided on the outer periphery of the outer tube, and a first positioning ring and a second positioning ring are respectively installed on the bottom and the top of the decorative cover. An annular protrusion is convexly provided on the outer peripheral wall of the central tube, and the outer tube is clamped between the first positioning ring and the annular protrusion, and the annular protrusion is clamped between the outer tube and the second positioning ring.

[0011] In order to facilitate the supply and discharge of hot water, the outer cylinder is provided with a hot water inlet pipe connected to the inlet of the flow channel and a hot water outlet pipe connected to the outlet of the flow channel.

[0012] In order to ensure that the hot water always fills the flow channel, the hot water inlet pipe and the hot water outlet pipe are respectively located at the lower part and the upper part of the outer cylinder.

[0013] The technical solution adopted by the utility model to solve the second technical problem is: a drinking water device using the above-mentioned faucet.

[0014] To further save hot water,

[0015] A hot water tank connected to a first water pipe and a second water pipe;

[0016] A water supply pipeline, both ends of which are connected to the first water pipe and the hot water inlet pipe respectively; and

[0017] The return water pipeline has two ends connected to the hot water outlet pipe and the second water pipe respectively.

[0018] In order to facilitate the automatic supply of hot water and real-time monitoring of water flow temperature, a delivery pump capable of delivering water from its inlet to the outlet is installed on the water supply pipeline, and a temperature sensor for detecting the water flow temperature inside the hot water outlet pipe is provided on the hot water outlet pipe.

[0019] In order to facilitate the automatic opening and closing of the sterilization function, the drinking water equipment has a controller, and the temperature sensor and the delivery pump are electrically connected to the controller so that the controller can receive the signal collected by the temperature sensor and control the opening and closing of the delivery pump.

[0020] Compared with the prior art, the utility model has the advantages that: by arranging an outer tube on the outer periphery of the central tube to form a flow channel for hot water to flow through the two, the normal temperature water nozzle can be sterilized. On the one hand, the hot water flows through the flow channel outside the central tube to heat and sterilize it, and it will not be discharged through the central tube to avoid scalding the user. On the other hand, the flow channel 20 has a small capacity and can save hot water. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the faucet in the embodiment of the drinking water equipment of the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the three-dimensional decomposition of

[0023] Figure 3 for Figure 1 A longitudinal cross-sectional view of

[0024] Figure 4 for Figure 1 The longitudinal cross-sectional view behind the decorative cover is omitted (the dotted line indicates the hot water flow path);

[0025] Figure 5 It is a schematic structural diagram of an embodiment of the drinking water equipment of the utility model (the decorative cover is omitted). DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0028] like Figures 1 to 5 The figure shows a preferred embodiment of the drinking water equipment of the utility model. The drinking water equipment comprises a faucet, a hot water tank 4, a water supply pipeline 5 and a water return pipeline 6. The faucet comprises a central tube 1, an outer tube 2 and a decorative cover 3.

[0029] The central tube 1 is arranged vertically for allowing water at normal temperature to flow through. Specifically, an annular protrusion 11 is convexly provided on the outer peripheral wall of the upper part of the central tube 1, and a water outlet 12 is provided at the bottom end of the central tube 1.

[0030] The outer tube 2 is sleeved on the outer circumference of the central tube 1 , and a flow channel 20 for hot water to flow through is formed between the inner circumferential wall of the outer tube 2 and the outer circumferential wall of the central tube 1 .

[0031] Specifically, a hot water inlet pipe 21 connected to the inlet of the flow channel 20 is provided at the lower part of the outer cylinder 2;

[0032] A hot water outlet pipe 22 connected to the outlet of the flow channel 20 is provided at the upper portion of the outer cylinder 2. A temperature sensor 221 for detecting the water flow temperature inside the hot water outlet pipe 22 is provided on the hot water outlet pipe 22.

[0033] A plurality of guide rings 23 are convexly provided on the inner circumferential wall of the outer tube 2 and are arranged at intervals along the axial direction thereof. The inner annular surface of each guide ring 23 abuts against the outer circumferential wall of the central tube 1, and a sealing ring 232 is embedded on the inner annular surface of each guide ring 23, and is sealed with the outer circumferential wall of the central tube 1 through the sealing ring 232; an annular flow channel unit is formed between two adjacent guide rings 23 and the central tube 1 and the outer tube 2, and a notch 231 is provided on the other guide rings 23 except for the front and rear guide rings 23 for connecting two adjacent flow channel units, so that each flow channel unit constitutes the above-mentioned flow channel 20.

[0034] The decorative cover 3 is sleeved on the outer circumference of the outer tube 2, and the first positioning ring 31 and the second positioning ring 32 are respectively installed on the bottom and the top of the decorative cover 3. The outer tube 2 is clamped between the first positioning ring 31 and the annular protrusion 11, and the annular protrusion 11 is clamped between the outer tube 2 and the second positioning ring 32, so as to achieve relative fixation between the central tube 1, the outer tube 2 and the decorative cover 3.

[0035] A first water pipe 41 and a second water pipe 42 are connected to the bottom of the hot water tank 4 .

[0036] The two ends of the water supply pipeline 5 are respectively connected to the first water pipe 41 and the hot water inlet pipe 21, so as to facilitate the supply of hot water to the flow channel 20. Specifically, the water supply pipeline 5 is installed with a delivery pump 51 that can deliver water from its inlet to its outlet.

[0037] The two ends of the return water pipeline 6 are respectively connected to the hot water outlet pipe 22 and the second water pipe 42, so as to facilitate the recovery of the hot water discharged from the flow channel 20.

[0038] In addition, the drinking water device of this embodiment has a controller 7, and the temperature sensor 221 and the delivery pump 51 are both electrically connected to the controller 7, so that the controller 7 can receive the signal collected by the temperature sensor 221 and control the delivery pump 51 to start and stop.

[0039] The working principle of this embodiment is as follows: when working, the temperature sensor 221 detects the water flow temperature inside the hot water outlet pipe 22. When the temperature is less than the set value, the controller 7 starts the delivery pump 51, and the hot water in the hot water tank 4 is supplied to the flow channel 20 through the water supply pipeline 5, and the central pipe 1 is heated and sterilized. Finally, the hot water is recovered to the hot water tank 4 through the return water pipeline 6;

[0040] In the above scheme, first, hot water flows through the flow channel 20 outside the central tube 1 to heat and sterilize it, and it will not be discharged through the central tube 1 to avoid scalding the user; second, the outer tube 2 is hidden in the decorative cover 3 to avoid the user from contacting and being scalded; third, the flow channel 20 has a small capacity, and the hot water in the flow channel 20 is finally recovered into the hot water tank 4, which can avoid wasting hot water and thus save electricity and water.

Claims

1. A faucet, comprising a central tube (1) for water at room temperature to flow through, a water outlet (12) being provided at the bottom end of the central tube (1), characterized in that: An outer tube (2) is sleeved on the outer circumference of the central tube (1), and a flow channel (20) for hot water to flow through is formed between the inner circumferential wall of the outer tube (2) and the outer circumferential wall of the central tube (1).

2. The faucet according to claim 1, characterized in that: At least three guide rings (23) are convexly provided on the inner peripheral wall of the outer cylinder (2) and are arranged at intervals along the axial direction thereof. The inner ring surface of each guide ring (23) abuts against the outer peripheral wall of the central tube (1) and is sealed. An annular flow channel unit is formed between two adjacent guide rings (23) and the central tube (1) and the outer cylinder (2). Except for the front and rear guide rings (23), the other guide rings (23) have notches (231) connecting two adjacent flow channel units, so that each flow channel unit forms the flow channel (20).

3. The faucet according to claim 2, characterized in that: A sealing ring (232) is embedded on the inner ring surface of each guide ring (23), and is sealed with the outer peripheral wall of the central tube (1) through the sealing ring (232).

4. The faucet according to claim 1, characterized in that: The outer circumference of the outer tube (2) is sleeved with a decorative cover (3), and the bottom and top of the decorative cover (3) are respectively installed with a first positioning ring (31) and a second positioning ring (32). An annular protrusion (11) is convexly provided on the outer circumferential wall of the central tube (1), and the outer tube (2) is clamped between the first positioning ring (31) and the annular protrusion (11), and the annular protrusion (11) is clamped between the outer tube (2) and the second positioning ring (32).

5. The faucet according to any one of claims 1 to 4, characterized in that: The outer cylinder (2) is provided with a hot water inlet pipe (21) connected to the inlet of the flow channel (20) and a hot water outlet pipe (22) connected to the outlet of the flow channel (20).

6. The faucet according to claim 5, characterized in that: The hot water inlet pipe (21) and the hot water outlet pipe (22) are respectively located at the lower part and the upper part of the outer cylinder (2).

7. A drinking water device using the faucet according to any one of claims 5 to 6.

8. The drinking water equipment according to claim 7, characterized in that: Also includes A hot water tank (4) connected to a first water pipe (41) and a second water pipe (42); A water supply pipeline (5), the two ends of which are respectively connected to the first water pipe (41) and the hot water inlet pipe (21); and The return water pipeline (6) has two ends respectively connected to the hot water outlet pipe (22) and the second water pipe (42).

9. The drinking water equipment according to claim 8, characterized in that: The water supply pipeline (5) is provided with a delivery pump (51) capable of delivering water from its inlet to its outlet, and the hot water outlet pipe (22) is provided with a temperature sensor (221) for detecting the temperature of water flow inside the hot water outlet pipe (22).

10. The drinking water equipment according to claim 9, characterized in that: The drinking water device has a controller (7), and the temperature sensor (221) and the delivery pump (51) are both electrically connected to the controller (7), so that the controller (7) can receive the signal collected by the temperature sensor (221) and control the delivery pump (51) to start and stop.

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