Four-way water flow sensor

Abstract

The utility model discloses a four-way water flow sensor which comprises a pipe body, a first water outlet is formed in the first end of the pipe body, a temperature control valve is arranged at the second end of the pipe body, a water inlet is formed in the position, close to the temperature control valve, of one side of the pipe body, and a memory alloy one-way valve is axially installed in the water inlet. A water flow pulse signal part is installed in the pipe body between the first water outlet and the memory alloy one-way valve, a temperature probe is installed between the water flow pulse signal part and the first water outlet, water flow sensing can be conducted through the water flow pulse signal part, and meanwhile a temperature control valve is arranged to control the temperature of the water flow. Water in the water tank of the water heater can be discharged when the water temperature is low, the water tank of the water heater is prevented from being frozen and cracked, the memory alloy one-way valve can be automatically opened and closed according to the water temperature, the flow is controlled, and the flow of low-temperature water is reduced. The water flow sensor solves the problem that an existing water flow sensor is single in function.

Description

Technical Field

[0001] The utility model relates to the field of water heaters, in particular to a four-way water flow sensor. Background Art

[0002] Water heaters are commonly used electrical appliances in people's daily lives. In order to control the start and stop of the water heater, a water flow sensor is installed on the water heater. The existing water flow sensor only has the function of sensing water flow, and does not have the function of automatically turning on and off according to the temperature, nor does it have the function of preventing the water tank from freezing and cracking. Utility Model Content

[0003] The utility model provides a four-way water flow sensor, which solves the problem of single function of the existing water flow sensor.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a four-way water flow sensor, comprising a tube body, a first water outlet is provided at the first end of the tube body, a temperature control valve is provided at the second end of the tube body, a water inlet is provided on one side of the tube body near the temperature control valve, a memory alloy one-way valve is axially installed in the water inlet, a water flow pulse signal component is installed inside the tube body between the first water outlet and the memory alloy one-way valve, a temperature probe is installed between the water flow pulse signal component and the first water outlet, water flow sensing can be performed by setting the water flow pulse signal component, and at the same time, the temperature control valve can be provided, so that water in the water tank of the water heater can be discharged when the water temperature is relatively low, thereby avoiding the water tank of the water heater from being frozen and cracked, and the memory alloy one-way valve can automatically open and close according to the water temperature, and control the flow rate to reduce the flow rate of low-temperature water.

[0005] Preferably, a drain valve axially opposite to the water inlet is installed on the other side of the pipe body, and the sewage in the pipe body can be drained after the drain valve is unplugged.

[0006] Preferably, the memory alloy one-way valve is completely closed when the water temperature reaches the memory alloy set temperature S1, and opens when the water temperature is greater than S1, and the water flow rate when opened is 50% of the water flow rate at normal temperature 25°C.

[0007] Preferably, a filter screen covering the memory alloy one-way valve is installed at the inner end of the drain valve, so as to filter the water entering the memory alloy one-way valve. The filter screen can be removed when the drain valve is pulled out.

[0008] Preferably, a second water outlet is provided on the side wall of the tube body near the first water outlet to facilitate multi-channel water outlet.

[0009] Preferably, a shaft sleeve is arranged on the outer side of the valve stem of the memory alloy one-way valve, and a spring is installed between the shaft sleeve and the drain valve.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] By setting up a water flow pulse signal component, water flow sensing can be performed. At the same time, a temperature control valve can be provided to discharge the water in the water heater tank when the water temperature is relatively low, thereby preventing the water heater tank from freezing and cracking. The memory alloy one-way valve can automatically open and close according to the water temperature, and control the flow rate to reduce the flow rate of low-temperature water. By installing a temperature probe, the water temperature in the pipe body can be detected and monitored. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the main structural diagram of the utility model;

[0013] Figure 2 This is a main cross-sectional structural diagram of the utility model;

[0014] Figure 3 for Figure 2 Enlarged structural diagram at point A. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] like Figure 1-3 As shown, the utility model provides a four-way water flow sensor, including a tube body 1, a first water outlet 4 is provided at the first end of the tube body 1, a temperature control valve 11 is provided at the second end of the tube body 1, a water inlet 5 is provided on one side of the tube body 1 near the temperature control valve 11, a memory alloy one-way valve 9 is axially installed in the water inlet 5, a water flow pulse signal component 8 is installed inside the tube body 1 between the first water outlet 4 and the memory alloy one-way valve 9, a temperature probe 7 is installed between the water flow pulse signal component 8 and the first water outlet 4, water flow sensing can be performed by setting the water flow pulse signal component 8, and at the same time, the temperature control valve 11 can be provided, so that the water in the water tank of the water heater can be discharged when the water temperature is relatively low, thereby avoiding the water tank of the water heater from being frozen and cracked, and the memory alloy one-way valve 9 can be automatically opened and closed according to the water temperature, and the flow rate is controlled to reduce the flow rate of low-temperature water.

[0017] Specifically, the temperature control valve 11 can adopt a common antifreeze valve on the market, which has a temperature sensing element installed inside, can accurately sense the water temperature, and can be opened and closed without power supply. The temperature control valve 11 opens to drain water when the water temperature reaches the set opening water temperature S2, and closes to stop draining water when the temperature is higher than the value, and keeps working in a cycle. A second water outlet 6 is provided on the side wall of the pipe body 1 near the first water outlet 4 to facilitate multi-channel water outlet.

[0018] The memory alloy one-way valve 9 also adopts the existing technology and is installed in the water inlet 5. The memory alloy one-way valve 9 is completely closed when the water temperature reaches the memory alloy set temperature S1, and opens when the water temperature is greater than S1. When opened, the water flow rate is 50% of the water flow rate at normal temperature 25°C. Its specific structure will not be repeated here.

[0019] In order to facilitate sewage discharge from the pipe body 1, a sewage valve 2 axially opposite to the water inlet 5 is installed on the other side of the pipe body 1. After the sewage valve 2 is unplugged, the sewage in the pipe body 1 can be discharged.

[0020] The water flow pulse signal component 8 adopts the commonly used products on the market, with water wheel blades,

[0021] In this embodiment, a filter screen 10 is installed at the inner end of the drain valve 2 to cover the memory alloy one-way valve 9, which can filter the water entering the memory alloy one-way valve 9. The filter screen 10 can be removed when the drain valve 2 is pulled out. A shaft sleeve 14 is provided on the outer side of the valve stem 13 of the memory alloy one-way valve 9, and a spring 12 is installed between the shaft sleeve 14 and the drain valve 2.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A four-way water flow sensor, characterized in that: include: A tube body (1), wherein a first water outlet (4) is provided at a first end of the tube body (1), a temperature control valve (11) is provided at a second end of the tube body (1), a water inlet (5) is provided on one side of the tube body (1) near the temperature control valve (11), a memory alloy one-way valve (9) is axially installed in the water inlet (5), a water flow pulse signal component (8) is installed inside the tube body (1) between the first water outlet (4) and the memory alloy one-way valve (9), and a temperature probe (7) is installed between the water flow pulse signal component (8) and the first water outlet (4).

2. The four-way water flow sensor according to claim 1, characterized in that: A sewage valve (2) is installed on the other side of the pipe body (1) and is axially opposite to the water inlet (5).

3. The four-way water flow sensor according to claim 1, characterized in that: The memory alloy one-way valve (9) is completely closed when the water temperature reaches the memory alloy set temperature S1, and is opened when the water temperature is greater than S1, and the water flow rate when opened is 50% of the water flow rate at normal temperature 25°C.

4. The four-way water flow sensor according to claim 2, characterized in that: The inner end of the sewage valve (2) is provided with a filter screen (10) covering the memory alloy one-way valve (9).

5. The four-way water flow sensor according to claim 1, characterized in that: A second water outlet (6) is provided on the side wall of the tube body (1) at a position close to the first water outlet (4).

6. The four-way water flow sensor according to claim 2, characterized in that: A shaft sleeve (14) is arranged on the outer side of the valve stem (13) of the memory alloy one-way valve (9), and a spring (12) is installed between the shaft sleeve (14) and the drain valve (2).

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