A water leakage protection device with micro-leakage detection

Abstract

The utility model discloses a kind of water leakage protection devices with micro leakage detection, it is related to water leakage protection device field, it includes direct current pipeline, the valve body structure being arranged at the one end of direct current pipeline and water inlet pipe connection, the flowmeter being arranged at the one end of direct current pipeline and water outlet pipe connection, the one-way valve being arranged in the flow passage of direct current pipeline and located between valve body structure and flowmeter And two ends are communicated with the branch pipeline in direct current pipeline, the branch pipeline is equipped with micro flowmeter. The present application is added branch pipeline and micro flowmeter, the accurate detection of micro leakage in fluid delivery is realized, the valve body structure is utilized in time to close or open pipeline, effectively avoid water resource waste, and the safety and stability of fluid delivery are guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of water leakage protection devices, and more specifically, to a water leakage protection device with micro-leakage detection. Background Technology

[0002] The city's water supply pipelines are old and long, and are prone to corrosion, cracking, and leakage. Therefore, it is necessary to install leak protection devices in the water supply systems of buildings to maintain the safety of household water use and protect the safety of family property.

[0003] Leak protectors are typically installed at points in the pipes prone to leaks. They are the first to detect and cut off the water supply when there is a risk of leakage or when the valve is left on, and they also transmit the information to the user so that the user can replace or repair the device in a timely manner.

[0004] The existing water leak protector has a flow meter installed inside the main pipeline to monitor the water flow and usage time. Because it is installed inside the main pipeline, the monitored flow range is large, and the accuracy is insufficient to detect minor flow leaks. When a minor leak occurs in the pipeline, the water leak protector cannot detect it in time and shut off the water circuit.

[0005] In conclusion, how to sensitively detect micro-leakage in pipelines is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a leak protection device with micro-leakage detection, which can effectively detect micro-leakage in pipelines.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A leak protection device with micro-leakage detection, comprising:

[0009] DC pipeline;

[0010] The valve body structure is located at one end of the DC pipe connected to the water inlet pipe, so as to close or open the end of the DC pipe near the water inlet pipe.

[0011] A flow meter is installed at the end where the DC pipe connects to the outlet pipe;

[0012] A one-way valve is disposed within the flow channel of the DC pipeline and located between the valve body structure and the flow meter;

[0013] A branch pipe, both ends of which are connected to the main pipe, so that the leaking water flows through the branch pipe, bypasses the one-way valve, and ends at the flow meter. The branch pipe is equipped with a miniature flow meter.

[0014] Preferably, the DC pipeline is provided with a leakage hole and a return hole in sequence. The leakage hole is located at the front end of the water flow direction of the one-way valve, and the return hole is located between the one-way valve and the flow meter.

[0015] One end of the branch pipe is connected to the leakage hole, and the other end of the branch pipe is connected to the return hole.

[0016] Preferably, the DC pipe is provided with a first threaded hole at the leakage hole, and the inner wall of the first threaded hole extends toward the side away from the DC pipe;

[0017] The DC pipe is provided with a second threaded hole at the return hole, and the inner wall of the second threaded hole extends toward the side away from the DC pipe;

[0018] Both ends of the tributary pipe are provided with joints, and the first threaded hole and the second threaded hole are respectively threadedly connected to the corresponding joints.

[0019] Preferably, the outer wall of the DC pipe is provided with a flow sensor for collecting the flow meter data.

[0020] Preferably, the valve body structure includes:

[0021] The valve body is connected to the DC pipeline;

[0022] The valve stem is rotatably mounted on the valve body;

[0023] A valve ball is disposed within the flow channel of the valve body and is connected to the valve stem;

[0024] An actuator is disposed on the valve body, and the actuator is used to control the rotation of the valve stem.

[0025] Preferably, the valve ball includes a valve stem groove on its surface, a valve ball hole through the valve ball, and a ball cover formed on the surface of the valve ball, wherein the valve stem is connected to the valve ball through the valve stem groove.

[0026] Preferably, the DC pipe is connected to a connector at one end of the valve body, and the connector has an installation space for installing the valve body.

[0027] Preferably, the end of the DC pipe near the connector has a straight internal thread, and the end of the connector near the DC pipe has an external thread that mates with the straight internal thread.

[0028] Preferably, the outer wall surface of the connector has a through hole for accommodating the rotation of the valve stem.

[0029] Preferably, the connector has a first external thread at the end near the inlet pipe, and the DC pipe has a second external thread at the end near the outlet pipe.

[0030] The leakage protection device with micro-leakage detection provided by this utility model can sensitively detect micro-leakage in the pipeline. When the downstream is using water normally, it can determine whether there is a leak based on the set flow value. When a micro-leakage occurs, the micro flow meter can detect the change in value and control the actuator to close the water valve to prevent the pipeline from continuing to leak. Moreover, the structure is relatively simple and the cost is low. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the leakage protection device in this embodiment;

[0033] Figure 2 This is a schematic diagram of the connecting component in this embodiment;

[0034] Figure 3 This is a schematic diagram of the valve ball structure in this embodiment;

[0035] Figure 4 This is a schematic diagram of the branch pipe in this embodiment;

[0036] Figure 5 This is a schematic diagram of the water flow direction during high-volume water use in this embodiment;

[0037] Figure 6 This is a schematic diagram of the water flow direction during micro-leakage in this embodiment.

[0038] Figures 1-6 In the accompanying drawings, the reference numerals include:

[0039] 1. Connector; 2. Actuator; 3. Valve stem; 4. Valve ball; 5. Check valve; 6. DC pipeline; 7. Flow sensor; 8. Flow meter; 9. Connector; 10. Miniature flow meter;

[0040] 101. First external thread; 102. Through hole; 103. External thread; 104. Installation space;

[0041] 401. Valve stem groove; 402. Valve ball bore; 403. Ball cover;

[0042] 601, Straight pipe internal thread; 602, First threaded hole; 603, Second threaded hole; 604, Outer wall; 605, Second external thread. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship can also change accordingly. An embodiment of this application discloses a leakage protection device with micro-leakage detection.

[0045] The core of this invention is to provide a water leakage protection device with micro-leakage detection.

[0046] Please refer to Figure 1 .

[0047] The leakage protection device with micro-leakage detection provided by this utility model includes a direct current pipe 6, a valve body structure, a flow meter 8, a one-way valve 5, and a branch pipe. The valve body structure is located at one end of the direct current pipe 6 connected to the inlet pipe to close or open the end of the direct current pipe 6 near the inlet pipe. The flow meter 8 is located at one end of the direct current pipe 6 connected to the outlet pipe. The one-way valve 5 is located in the flow channel of the direct current pipe 6 and is located between the valve body structure and the flow meter 8. Both ends of the branch pipe are connected to the direct current pipe 6 so that the leaking water flows through the branch pipe, bypasses the one-way valve 5, and flows to the flow meter 8. The branch pipe is equipped with a micro flow meter 10.

[0048] Specifically, the main pipeline 6 serves as the main route. A branch pipeline is added as a branch route, and a miniature flow meter 10 is installed on the branch pipeline. The branch pipeline is arranged in a U-shape, with its transverse sections parallel to the main pipeline 6. Both ends of the branch pipeline are connected to the main pipeline 6. Within the main pipeline 6, a valve body structure, a check valve 5, and a flow meter 8 are sequentially arranged along the water flow direction. The valve body structure is used to open and close the inlet end of the main pipeline 6. The check valve 5 is located at the rear end of the valve body structure, and the flow meter 8 is located on the side of the main pipeline 6 near the outlet end. During normal operation of the main pipeline 6, a large water flow can generate sufficient thrust to open the check valve 5, allowing the water to flow along... Figure 5 As shown, the water flows in the direction indicated. When a minor leak occurs in the pipe, the leakage flow is small, and the resulting thrust cannot push open the check valve 5. In this application, the inlet end of the branch pipe is located in front of the check valve 5. When the water flow cannot push open the check valve 5, it will flow along the branch pipe. At this time, the micro flow meter can detect the flow rate in the branch pipe. When it exceeds the set value, the signal will be transmitted to the main board (i.e., the control unit, which can be configured with a signal acquisition unit and a judgment unit to acquire and judge the flow signals detected by the flow meter 8 and the micro flow meter 10, and control the valve body structure to open and close. This type of control unit is a conventional electronic control unit, which will not be described in detail here). The main board closes the valve body structure, thereby preventing the pipe from continuing to leak.

[0049] The aforementioned leak protection device with micro-leak detection achieves sensitive detection of micro-leakage by adding a branch pipe and a micro flow meter 10 to the main pipe 6, combined with the function of the one-way valve 5. During normal high-flow water use, water flows through the main pipe 6, and the flow meter 8 monitors the overall flow rate. When the flow rate exceeds the limit, the main board controls the valve body to close, cutting off the water supply. When a micro-leakage occurs, due to the presence of the one-way valve 5, the small water flow cannot push open the valve and can only flow through the branch pipe. The micro flow meter 10 monitors the water usage time and flow rate changes. When the flow rate exceeds the set value, the main board also controls the valve body to close, preventing further leakage. This structural design solves the problem that existing leak protection devices cannot sensitively detect micro-leakage, improving the practicality and reliability of the device and providing better protection for household water safety.

[0050] The leakage protection device with micro-leakage detection provided by this utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0051] In one specific implementation, reference is made to... Figure 1 The DC pipe 6 is provided with a leakage hole and a return hole in sequence. The leakage hole is located at the front end of the water flow direction of the one-way valve 5, and the return hole is located between the one-way valve 5 and the flow meter 8. One end of the branch pipe is connected to the leakage hole, and the other end of the branch pipe is connected to the return hole.

[0052] Specifically, a leakage hole (connected to the inlet of the branch pipe) and a return hole (connected to the outlet of the branch pipe) are sequentially provided along the water flow direction on the direct current pipe 6. The leakage hole is located at the front end of the one-way valve 5, meaning that when the one-way valve 5 is closed, the water flow preferentially passes through the leakage hole. The return hole is located between the one-way valve 5 and the flow meter 8, allowing the water flow in the branch pipe to return to the direct current pipe 6 after passing through the micro flow meter 10. This connection method ensures that in the event of a minor leak, the water flow can smoothly pass through the branch pipe, enabling the monitoring of minor leaks.

[0053] Based on any of the above embodiments, refer to Figure 1 and Figure 4 The DC pipe 6 is provided with a first threaded hole 602 at the leakage hole, and the inner wall of the first threaded hole 602 extends toward the side away from the DC pipe 6; the DC pipe 6 is provided with a second threaded hole 603 at the return hole, and the inner wall of the second threaded hole 603 extends toward the side away from the DC pipe 6; both ends of the branch pipe are provided with connectors 9, and the first threaded hole 602 and the second threaded hole 603 are respectively threaded to the corresponding connectors 9.

[0054] Specifically, as shown in the figure, the branch pipe has a U-shaped structure, with connectors 9 at both ends for easy connection. Correspondingly, a first threaded hole 602 and a second threaded hole 603 are sequentially provided on the outer circumference of the direct pipe 6. The sidewalls of the first threaded holes 602 and 603 extend radially outward along the direct pipe 6. The first threaded holes 602 and 603 are respectively arranged to correspond to the leakage hole and the return hole. The first threaded holes 602 and 603 are threadedly connected to the corresponding connectors 9 to connect the branch pipe to the direct pipe 6. The threaded connection facilitates installation and disassembly while ensuring a tight seal. The connectors 9 can be made of copper or stainless steel, as long as they meet the requirements for connection and sealing with the threaded holes.

[0055] Based on any of the above embodiments, refer to Figure 1 and Figure 4 The outer wall 604 of the DC pipe 6 is provided with a flow sensor 7 for collecting data from the flow meter 8.

[0056] Specifically, the outer wall 604 of the DC pipe 6 is equipped with a flow sensor 7 for collecting data from the flow meter 8. The flow sensor 7 can collect the flow data monitored by the flow meter 8 and transmit it to the main board, so that the main board can make judgments based on the data. The flow sensor 7 can be an electromagnetic flow sensor or an ultrasonic flow sensor. Different types of flow sensors have their own advantages and disadvantages, and can be selected according to actual needs.

[0057] In a specific embodiment provided in this application, the valve body structure includes a valve body, a valve stem 3, a valve ball 4, and an actuator 2. The valve body is connected to the DC pipeline 6. The valve stem 3 is rotatably disposed within the valve body. The valve ball 4 is located within the flow channel of the valve body and connected to the valve stem 3. The actuator 2 is located within the valve body and is used to control the rotation of the valve stem 3. When the actuator 2 receives a signal from the main board, it can drive the valve stem 3 to rotate, thereby controlling the rotation of the valve ball 4 and realizing the opening or closing of the water flow in the DC pipeline 6.

[0058] Based on any of the above embodiments, refer to Figure 3 The valve ball 4 includes a valve stem groove 401 on its surface, a valve ball hole 402 through the valve ball 4, and a ball cover 403 formed on the surface of the valve ball 4. The valve stem 3 is connected to the valve ball 4 through the valve stem groove 401.

[0059] Specifically, the valve stem 3 is connected to the valve ball 4 through the valve stem groove 401. When the valve stem 3 rotates, it drives the valve ball 4 to rotate, so that the valve ball hole 402 or the ball cover 403 of the valve ball 4 corresponds to the flow channel of the direct pipe 6, thereby realizing the function of water flow or shut-off.

[0060] Based on any of the above embodiments, refer to Figure 1 and Figure 2 A DC pipe 6 is connected to a connector 1 at one end of the valve body. The connector 1 has an installation space 104 for mounting the valve body. The connector 1 facilitates connection between the DC pipe 6 and the inlet pipe, and provides the valve body with a fixed installation space 104.

[0061] Furthermore, the end of the DC pipe 6 near the connector 1 has a straight internal thread 601, and the end of the connector 1 near the DC pipe 6 has an external thread 103 that mates with the straight internal thread 601. Through the threaded engagement of the straight internal thread 601 and the external thread 103, the DC pipe 6 and the connector 1 are tightly connected, ensuring the stability and sealing of the connection.

[0062] Based on any of the above embodiments, the outer wall surface of the connector 1 is provided with a through hole 102 for accommodating the rotation of the valve stem 3. The through hole 102 allows the valve stem 3 to rotate smoothly within the connector 1, thereby controlling the valve ball 4.

[0063] Based on any of the above embodiments, the connector 1 has a first external thread 101 formed at the end near the water inlet pipe, and the DC pipe 6 has a second external thread 605 formed at the end near the water outlet pipe. The first external thread 101 and the second external thread 605 facilitate the connection between the connector 1 and the water inlet pipe, and between the DC pipe 6 and the water outlet pipe.

[0064] The implementation principle of a leakage protection device with micro-leakage detection in this application embodiment is as follows: This leakage protection device achieves sensitive detection of micro-leakage by adding a branch pipe and a micro flow meter 10 to the main pipe 6, combined with the function of a one-way valve 5. During normal high-flow water use, water flows through the main pipe 6, and the overall flow rate is monitored by the flow meter 8 and flow sensor 7. When the flow rate exceeds the limit, the main board controls the actuator 2 to close the valve ball, cutting off the water supply. When a micro-leakage occurs, due to the presence of the one-way valve 5, the small water flow cannot push open the one-way valve 5 and can only flow through the branch pipe. The micro flow meter 10 monitors the water usage time and flow rate changes. When the flow rate exceeds the set value, the main board also controls the actuator 2 to close the valve ball 4, preventing further leakage. This structural design solves the problem that existing leakage protection devices cannot sensitively detect micro-leakage, improves the practicality and reliability of the device, and provides better protection for household water safety.

[0065] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0066] The above provides a detailed description of a leakage protection device with micro-leakage detection provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A leakage protection device with micro-leakage detection, characterized in that, include: DC pipe (6); The valve body structure is located at one end of the DC pipe (6) connected to the water inlet pipe, so as to close or open the end of the DC pipe (6) near the water inlet pipe; A flow meter (8) is installed at one end of the DC pipe (6) that connects to the outlet pipe; A one-way valve (5) is provided in the flow channel of the DC pipe (6) and is located between the valve body structure and the flow meter (8); The branch pipe is connected to the direct pipe (6) at both ends so that the leakage water flows through the branch pipe, bypasses the one-way valve (5), and ends at the flow meter (8). The branch pipe is equipped with a miniature flow meter (10).

2. The leakage protection device with micro-leakage detection according to claim 1, characterized in that, The DC pipe (6) is provided with a leakage hole and a return hole in sequence. The leakage hole is located at the front end of the water flow direction of the one-way valve (5), and the return hole is located between the one-way valve (5) and the flow meter (8). One end of the branch pipe is connected to the leakage hole, and the other end of the branch pipe is connected to the return hole.

3. The leakage protection device with micro-leakage detection according to claim 2, characterized in that, The DC pipe (6) is provided with a first threaded hole (602) at the leakage hole, and the inner wall of the first threaded hole (602) extends toward the side away from the DC pipe (6). The DC pipe (6) is provided with a second threaded hole (603) at the return hole, and the inner wall of the second threaded hole (603) extends toward the side away from the DC pipe (6). Both ends of the tributary pipe are provided with connectors (9), and the first threaded hole (602) and the second threaded hole (603) are respectively threaded to the corresponding connectors (9).

4. The leakage protection device with micro-leakage detection according to claim 1, characterized in that, The outer wall (604) of the DC pipe (6) is provided with a flow sensor (7) for collecting data from the flow meter (8).

5. The leakage protection device with micro-leakage detection according to claim 1, characterized in that, The valve body structure includes: The valve body is connected to the DC pipe (6); The valve stem (3) is rotatably mounted on the valve body; The valve ball (4) is located in the flow channel of the valve body and is connected to the valve stem (3); An actuator (2) is located on the valve body and is used to control the rotation of the valve stem (3).

6. The leakage protection device with micro-leakage detection according to claim 5, characterized in that, The valve ball (4) includes a valve stem groove (401) on its surface, a valve ball hole (402) through the valve ball (4), and a ball cover (403) formed on the surface of the valve ball (4). The valve stem (3) is connected to the valve ball (4) through the valve stem groove (401).

7. The leakage protection device with micro-leakage detection according to claim 5, characterized in that, The DC pipe (6) is connected to a connector (1) at one end of the valve body, and an installation space (104) for installing the valve body is formed in the connector (1).

8. The leakage protection device with micro-leakage detection according to claim 7, characterized in that, The DC pipe (6) has a straight internal thread (601) at one end near the connector (1), and the connector (1) has an external thread (103) that mates with the straight internal thread (601) at one end near the DC pipe (6).

9. The leakage protection device with micro-leakage detection according to claim 7, characterized in that, The outer wall surface of the connector (1) is provided with a through hole (102) for accommodating the rotation of the valve stem (3).

10. The leakage protection device with micro-leakage detection according to claim 7, characterized in that, The connector (1) has a first external thread (101) at the end near the water inlet pipe, and the DC pipe (6) has a second external thread (605) at the end near the water outlet pipe.

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