Water trap sensor, liquid level monitoring device and system suitable for rainwater pipe network

Abstract

The utility model discloses water storage inductor, liquid level monitoring device and system suitable for rainwater pipe network, and water storage inductor includes: flexible base, netlike shell, bottom with the top fixed connection of flexible base, netlike shell bottom periphery still is provided with fixed screw hole, and netlike shell inside is provided with accommodation space, float is set up in the accommodation space, first electrode and second electrode all are set up on the float, and each other is connected outside through the waterproof wire of netlike shell passage. In the utility model, the simple structure of water storage inductor is convenient for installation, and through the top electrode design of netlike shell and float, can effectively reduce the situation that water storage inductor is connected due to the covering of damp sundries and damp silt, realizes that the small volume is not obvious influence pipeline's overflow section.

Description

Technical Field

[0001] This utility model relates to the field of rainwater monitoring, and in particular to water storage sensors, liquid level monitoring devices and systems suitable for rainwater pipe networks. Background Technology

[0002] Urban flooding is a common phenomenon in cities during the rainy season, causing severe waterlogging and resulting significant losses to social safety, the economy, and transportation. Cities rely primarily on municipal stormwater drainage networks for rainwater discharge, making the capacity of these networks crucial. Timely and comprehensive monitoring of the stormwater network's operational status is fundamental to ensuring its drainage capacity. Currently, liquid level monitoring is the most common method used in China to assess the operational status of drainage networks.

[0003] Unlike sewage pipe networks, rainwater pipe networks are not always filled with water, which makes rainwater level monitoring as random and seasonal as rainfall. Some existing technologies install level switches at the bottom of the rainwater pipe network's flow channel to monitor and alarm the rainwater pipe network's level based on the results of the level switches, thereby achieving the purpose of saving electricity. However, this existing technology has the following problems: (1) The metal plate of the level switch is in direct contact with the liquid level. If it is covered by damp debris, it will cause the metal plate to be connected, resulting in incorrect liquid level monitoring; (2) The level switch is fixedly installed at the bottom of the flow channel. After long-term use, it is easy for debris to accumulate at the fixed location and at the position of the metal plate of the level switch, thereby affecting the monitoring.

[0004] Therefore, providing water storage sensors, liquid level monitoring devices, and liquid level monitoring systems suitable for rainwater pipe networks is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a water storage sensor, liquid level monitoring device and system suitable for rainwater pipe networks.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A first aspect of this utility model provides a water storage sensor suitable for rainwater pipe networks, comprising:

[0008] Flexible base;

[0009] The mesh shell is fixedly connected to the top of the flexible base at its bottom. The bottom outer periphery of the mesh shell is also provided with fixing screw holes, and the mesh shell has an accommodating space inside.

[0010] A float is disposed within the accommodating space;

[0011] The first electrode and the second electrode are both disposed on the float and are each connected to the outside via waterproof wires passing through the mesh shell.

[0012] Furthermore, the flexible base is a flexible rubber base, the mesh shell is a mesh plastic shell, and the float is a plastic float.

[0013] Furthermore, the screw holes are located around the bottom perimeter of the mesh housing.

[0014] Furthermore, the sides of the mesh shell are mesh structures, and the top of the mesh shell is a flat plate structure; the waterproof wire passes through the sides of the mesh shell.

[0015] Furthermore, both the first electrode and the second electrode include a metal sheet and a connecting wire connected to the metal sheet. The metal sheet is disposed on the surface of the float, and the connecting wire is disposed inside the float and connected to a waterproof wire.

[0016] Furthermore, the waterproof wire is provided with a waterproof sealing rubber ring at the outlet hole of the float housing.

[0017] Furthermore, both the mesh shell and the float are cylindrical; the metal sheets of the first electrode and the second electrode are respectively disposed on the top sides of the float, and the diagonal length of the axial section of the float is greater than the height of the mesh shell.

[0018] A second aspect of this invention provides a liquid level monitoring device suitable for rainwater pipe networks, comprising:

[0019] The water storage sensor as described in the first aspect is installed at the bottom of the flow channel of the rainwater pipe network;

[0020] The remote monitoring and control terminal (RTU) is installed inside the inspection well wall above the rainwater pipe network and is electrically connected to the water storage sensor via a waterproof wire.

[0021] Furthermore, the liquid level monitoring device also includes:

[0022] The liquid level sensor is installed inside the inspection well wall above the rainwater pipe network and is electrically connected to the remote monitoring and control terminal (RTU).

[0023] The liquid level sensor includes:

[0024] A static pressure level gauge is installed in the middle of the inspection well wall above the rainwater pipe network;

[0025] A radar-type level gauge is installed in the middle of the inspection well wall above the rainwater pipe network;

[0026] The remote control unit (RTU) is electrically connected to both the hydrostatic level gauge and the radar level gauge.

[0027] A third aspect of this utility model provides a liquid level monitoring system suitable for rainwater pipe networks, comprising:

[0028] The liquid level monitoring device as described in the second aspect;

[0029] The server is remotely connected to the liquid level monitoring device.

[0030] The beneficial effects of this utility model are:

[0031] In an exemplary embodiment of this utility model, the water storage sensor has a simple structure and is easy to install. Through the design of the mesh shell and the top electrode of the float, the water storage sensor can be effectively turned on due to the covering of damp debris and damp mud. After implementation, the size is small and does not significantly affect the flow cross-section of the pipeline. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of a water storage sensor suitable for rainwater pipe networks provided in an exemplary embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of a liquid level monitoring device suitable for rainwater pipe networks provided in an exemplary embodiment of the present invention;

[0034] Figure 3 This is a top view of a water storage sensor provided in an exemplary embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of the float provided in an exemplary embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of a liquid level monitoring device suitable for rainwater pipe networks provided in another exemplary embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the structure of a liquid level monitoring system suitable for rainwater pipe networks provided in an exemplary embodiment of the present invention;

[0038] In the diagram, 1-water sensor, 101-flexible base, 102-mesh shell, 10201-screw hole, 10202-accommodation space, 103-float, 104-first electrode, 105-second electrode, 106-waterproof wire, 10601-waterproof sealing rubber ring, 107-metal sheet, 108-connecting wire; 2-rainwater pipe network, 201-bottom of flow channel; 3-inspection well wall, 4-remote control terminal RTU, 5-static pressure level gauge, 6-radar level gauge. Detailed Implementation

[0039] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] In the description of this utility model, it should be noted that the directions or positional relationships indicated by "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer" etc. are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0043] It should be understood that although the terms first, second, third, etc., may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination." Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0045] See Figure 1 , Figure 1 A schematic diagram of the structure of a water storage sensor 1 suitable for rainwater pipe networks provided in an exemplary embodiment of the present invention is shown, including:

[0046] Flexible base 101;

[0047] The bottom of the mesh shell 102 is fixedly connected to the top of the flexible base 101. The bottom outer periphery of the mesh shell 102 is also provided with fixing screw holes 10201, and the mesh shell 102 is provided with an accommodating space 10202 inside.

[0048] A float 103 is disposed within the accommodating space 10201;

[0049] The first electrode 104 and the second electrode 105 are both disposed on the float 103 and are each connected to the outside via a waterproof wire 106 passing through the mesh shell 102.

[0050] Specifically, in this exemplary embodiment, a water storage sensor 1 suitable for a rainwater pipe network is installed at the bottom 201 of the flow channel of the rainwater pipe network 2 (e.g., Figure 2 As shown), the flexible base 101 is fixed to the bottom of the mesh housing 102 (e.g., by strong adhesive). During installation, the flexible base 101 can be tightly fitted to the bottom 201 of the flow channel. The fixing screw holes 10201 on the outer periphery of the bottom of the mesh housing 102 are used to fix the entire water storage sensor 1. The waterproof wire 106 can be fixed along the pipe wall and the inspection well wall 3 and connected to the outside.

[0051] After installation and actual use, when the rainwater pipe network 2 is in a waterless state or a low water state (the water level is lower than the top of the mesh shell 102), the first electrode 104 and the second electrode 105 are not connected, causing the water storage sensor 1 to be disconnected and not used; when the rainwater pipe network 2 is in a water state (the water level is higher than the top of the mesh shell 102), the water raises the float 103 to the highest point of the accommodating space 10202, and the first electrode 104 and the second electrode 105 on the float 103 form a closed loop through the water, and the water storage sensor 1 will be connected, and the corresponding electrical signal will be connected out through the waterproof wire 106.

[0052] Throughout the process, the mesh structure of the outer shell 102 can block larger debris from inside the pipe, preventing larger debris from simultaneously covering the first electrode 104 and the second electrode 105, thus avoiding connection and liquid level monitoring errors and improving reliability. At the same time, since the float 103 rises and falls during use, its up-and-down movement can remove some of the attached material, effectively reducing interference from damp mud and sand, and minimizing the impact on monitoring.

[0053] Therefore, it can be seen that in this exemplary embodiment, the water sensor 1 has a simple structure and is easy to install. Through the design of the mesh shell 102 and the top electrode of the float 103, the water sensor can be effectively turned on due to the covering of damp debris and damp mud. After implementation, the size is small and does not significantly affect the flow cross section of the pipe.

[0054] It should be noted that a certain protrusion can be provided around the top of the float 103 so that when the float 103 rises to the highest position of the accommodating space 10202, there is a certain space between the first electrode 104 and the second electrode 105 and the mesh shell 102, so that the water can conduct electricity.

[0055] The following will describe a preferred exemplary embodiment of the water storage sensor 1:

[0056] More preferably, in an exemplary embodiment, the flexible base 101 is a flexible rubber base, the mesh shell 102 is a mesh plastic shell, and the float 103 is a plastic float. Specifically, in this exemplary embodiment, lightweight materials are used for easy installation.

[0057] More preferably, in an exemplary embodiment, such as Figure 3 As shown, the screw holes 10201 are located around the bottom of the mesh housing, which makes the installation of the water sensor 1 more stable.

[0058] More preferably, in an exemplary embodiment, such as Figure 1 and Figure 3 As shown, the sides of the mesh shell 102 are mesh structures, and the top of the mesh shell 102 is a flat structure; the waterproof wire 106 passes through the sides of the mesh shell.

[0059] Specifically, in this exemplary embodiment, the mesh shell 102 forms a mesh structure only on the sides, while its top remains a flat plate structure. This reduces the probability of external foreign objects impacting the first electrode 105 and the second electrode 106 when the float 103 is on top, thereby improving the lifespan of the water sensor 1.

[0060] More preferably, in an exemplary embodiment, such as Figure 4 As shown, the first electrode 104 and the second electrode 105 both include a metal sheet 107 and a connecting line 108 connected to the metal sheet 107. The metal sheet 107 is disposed on the surface of the float 103, and the connecting line 108 is disposed inside the float 103 and connected to the waterproof wire 106.

[0061] Specifically, in this exemplary embodiment, the first electrode 104 and the second electrode 105 are implemented as a metal sheet 107 and a connecting wire 108. The metal sheet 107 enables electrical signal conduction, and the connecting wire 108 enables electrical signal transmission, ultimately connecting out through a waterproof wire 106. In one exemplary embodiment, inside the float 103, the metal sheet 107 and the connecting wire 108 (internal copper wire) are connected by welding.

[0062] More preferably, in an exemplary embodiment, such as Figure 4 As shown, the waterproof wire 106 is provided with a waterproof sealing rubber ring 10601 at the outlet hole of the float 103 housing.

[0063] Specifically, in this exemplary embodiment, the connecting wire 108 is led out through the wire outlet hole on the side of the float 103 housing, and a waterproof sealing rubber ring 10601 is added to the wire outlet hole (preferably inside the wire outlet hole) to prevent water ingress.

[0064] More preferably, in an exemplary embodiment, both the mesh shell 102 and the float 103 are cylindrical; the metal sheet 107 of the first electrode 104 and the metal sheet 107 of the second electrode 105 are respectively disposed on the top two sides of the float 103, and the diagonal length of the axial section of the float 103 is greater than the height of the mesh shell 102.

[0065] Specifically, in this exemplary embodiment, for ease of manufacturing, both the mesh housing 102 and the float 103 are cylindrical. To reduce the obstruction by small debris, the metal plates 107 of the first electrode 104 and the second electrode 105 are respectively positioned on either side of the top of the float 103. Finally, to prevent the float 103 from flipping within the accommodating space 10202 of the mesh housing 102, the diagonal length of the axial section of the float 103 is limited to be greater than the height of the mesh housing 102.

[0066] In one specific exemplary embodiment, the mesh shell 102 has a height of 2cm and a cylindrical body width of 5cm, while the float 103 has a height of 1cm and a cylindrical body width of 3cm.

[0067] See Figure 2 , Figure 2 An exemplary embodiment of the present invention illustrates a liquid level monitoring device suitable for rainwater pipe networks, comprising:

[0068] Water storage sensor 1 is installed at the bottom 201 of the flow channel of rainwater pipe network 2;

[0069] The remote monitoring and control terminal RTU4 is installed inside the inspection well wall 3 above the rainwater pipe network 2, and is electrically connected to the water storage sensor 1 via the waterproof wire 106 of the water storage sensor 1.

[0070] Specifically, in this exemplary embodiment, only the water storage sensor 1 is used for liquid level monitoring. When the rainwater pipe network 2 is in a waterless state or a low-water state (the water level is lower than the top of the mesh shell 102), the first electrode 104 and the second electrode 105 are not connected, so the water storage sensor 1 is disconnected and not used. When the rainwater pipe network 2 is in a water-filled state (the water level is higher than the top of the mesh shell 102), the water raises the float 103 to the highest point of the accommodating space 10202. The first electrode 104 and the second electrode 105 on the float 103 form a closed loop through the water, and the water storage sensor 1 will be connected. The corresponding electrical signal is connected out through the waterproof wire 106. At this time, the remote monitoring and control terminal RTU4 receives the electrical signal from the water storage sensor 1 and performs subsequent processing.

[0071] It should be noted that the Remote Terminal Unit (RTU4) integrates data acquisition, transmission, and storage functions, and adopts a low-power design. The RTU4 may include an AFE unit, an ADC module, and a wireless transmission module. The electrical signal from the water sensor 1 is detected sequentially through the AFE unit and the ADC module. Controlled by the electrical signal, the wireless transmission module in the RTU4 is then activated, transmitting the signal externally. This means data is transmitted only when the state changes, effectively reducing power consumption. The RTU4 also has an external power supply, which is designed for energy conservation.

[0072] More preferably, in an exemplary embodiment, such as Figure 5 As shown, the liquid level monitoring device further includes:

[0073] The liquid level sensor is installed inside the inspection well wall 3 above the rainwater pipe network 2 and is electrically connected to the remote monitoring and control terminal RTU4;

[0074] The liquid level sensor includes:

[0075] A static pressure level gauge 5 is installed at the middle of the inspection well wall 3 above the rainwater pipe network 2;

[0076] Radar-type liquid level gauge 6 is installed at the upper end of the inspection well wall 3 above the rainwater pipe network 2;

[0077] The remote monitoring and control terminal RTU4 is electrically connected to the hydrostatic level gauge 5 and the radar level gauge 6, respectively.

[0078] Specifically, in this exemplary embodiment, not only is a water storage sensor 1 used for basic liquid level monitoring, but also a liquid level sensor is used for liquid level monitoring, wherein: the liquid level sensor includes: a static pressure liquid level gauge 5, which is installed at the upper end of the inspection well wall 3 above the rainwater pipe network 2; and a radar liquid level gauge 6, which is installed at the middle end of the inspection well wall 3 above the rainwater pipe network 2.

[0079] The water storage sensor 1 is installed at the bottom 201 of the flow channel of the rainwater pipe network 2. It can detect the water depth at a low height and does not significantly affect the flow cross section of the pipe. The radar level gauge 6 is installed at the upper end of the inspection well wall 3, while the static pressure level gauge 5 is installed in the blind zone of the radar level gauge 6 and avoids the radar wave transmission area.

[0080] When the rainwater pipe network 2 is dry, that is, when the water sensor 1 is disconnected, the remote monitoring and control terminal RTU4 is in sleep mode, and the static pressure level gauge 5 and the radar level gauge 6 are in off mode to save battery power; when the rainwater pipe network 2 is wet, the water sensor 1 is in on mode.

[0081] In one exemplary embodiment, the remote control terminal RTU4 simultaneously activates the hydrostatic level gauge 5 and the radar level gauge 6, and the wireless transmission module in the RTU4 is activated and transmits data at predetermined time intervals. In another exemplary embodiment, such as... Figure 5 As shown, when the water sensor 1 is turned on, the interface connected to the radar level gauge 6 on the remote control terminal RTU4 is powered on, the radar level gauge 6 is activated, and the wireless transmission module in the remote control terminal RTU4 is activated and sends data at specified time intervals. When the water level rises to or above the blind zone of the radar level gauge 6, the interface connected to the hydrostatic level gauge 5 on the remote control terminal RTU4 is powered on, the hydrostatic level gauge 5 is activated, the interface of the radar level gauge 6 is de-powered, and the remote control terminal RTU4 transmits the collected level data at specified time intervals. When the water level drops below the blind zone of the radar level gauge 6, the interface of the hydrostatic level gauge 5 is de-powered, the radar level gauge 6 is activated to collect data, and the remote control terminal RTU4 transmits the collected data.

[0082] Subsequently, when the rainwater pipe 2 returns to a waterless state, the water sensor 1 disconnects, the remote control terminal RTU4 cuts off the power to the radar level gauge, and the remote control terminal RTU4 enters a sleep state.

[0083] In another exemplary embodiment, regardless of whether the water sensor 1 is connected, the remote monitoring and control terminal RTU automatically activates the wireless transmission module, the hydrostatic level gauge 5, and the radar level gauge 6 every 24 hours, and sends the status data of the equipment to the server in order to detect abnormalities in the equipment as soon as possible.

[0084] It should be noted that in this exemplary embodiment, the water sensor 1 is used as the activation switch for the rainwater pipe network 2 level monitoring device, ensuring that the device only collects and transmits data when the rainwater pipe network 2 has water, thus avoiding unnecessary power consumption and equipment wear and tear when the pipes are dry. The combination of a static pressure level gauge 5 and a radar level gauge 6 to collect level data provides complementary advantages. This largely avoids the risk of the static pressure level gauge 5 being washed away or entangled by debris in the pipe channel, while also covering data collection in radar blind spots, meeting the level monitoring requirements under various conditions.

[0085] In addition, by enabling the static pressure level gauge 5 and the radar level gauge 6 to operate under their respective advantageous conditions, the accuracy of the collected data is improved. Furthermore, by sending the equipment status at regular intervals through the remote monitoring and control terminal RTU4, equipment malfunctions can be detected in a timely manner, which is beneficial for equipment maintenance and thus enables long-term monitoring of the level information of the rainwater pipe network 2.

[0086] See Figure 6 , Figure 6 A schematic diagram of a liquid level monitoring system for rainwater pipe networks provided in an exemplary embodiment of the present invention is shown, including:

[0087] like Figure 2 or Figure 5 The liquid level monitoring device;

[0088] Server 7 is remotely connected to the liquid level monitoring device.

[0089] Specifically, in this exemplary embodiment, server 7 can collect and statistically analyze relevant liquid level monitoring data sent by each liquid level monitoring device.

[0090] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A water storage sensor suitable for rainwater pipe networks, characterized in that: include: Flexible base; The mesh shell is fixedly connected to the top of the flexible base at its bottom. The bottom outer periphery of the mesh shell is also provided with fixing screw holes, and the mesh shell has an accommodating space inside. A float is disposed within the accommodating space; The first electrode and the second electrode are both disposed on the float and are each connected to the outside via waterproof wires passing through the mesh shell.

2. The water storage sensor for rainwater pipe networks according to claim 1, characterized in that: The flexible base is a flexible rubber base, the mesh shell is a mesh plastic shell, and the float is a plastic float.

3. The water storage sensor for rainwater pipe networks according to claim 1, characterized in that: The screw holes are located around the bottom of the mesh casing.

4. The water storage sensor for rainwater pipe networks according to claim 1, characterized in that: The sides of the mesh shell are mesh structures, and the top of the mesh shell is a flat structure; the waterproof wire passes through the sides of the mesh shell.

5. The water storage sensor for rainwater pipe networks according to claim 1, characterized in that: Both the first electrode and the second electrode include a metal sheet and a connecting wire connected to the metal sheet. The metal sheet is disposed on the surface of the float, and the connecting wire is disposed inside the float and connected to a waterproof wire.

6. The water storage sensor for rainwater pipe networks according to claim 5, characterized in that: The waterproof wire is equipped with a waterproof sealing rubber ring at the outlet hole of the float housing.

7. The water storage sensor for rainwater pipe networks according to claim 5, characterized in that: Both the mesh shell and the float are cylindrical; the metal plates of the first electrode and the second electrode are respectively disposed on the top two sides of the float, and the diagonal length of the axial section of the float is greater than the height of the mesh shell.

8. A liquid level monitoring device suitable for rainwater pipe networks, characterized in that: include: The water storage sensor as described in any one of claims 1 to 7 is installed at the bottom of the flow channel of the rainwater pipe network; The remote monitoring and control terminal (RTU) is installed inside the inspection well wall above the rainwater pipe network and is electrically connected to the water storage sensor via a waterproof wire.

9. The liquid level monitoring device for rainwater pipe networks according to claim 8, characterized in that: The liquid level monitoring device also includes: The liquid level sensor is installed inside the inspection well wall above the rainwater pipe network and is electrically connected to the remote monitoring and control terminal (RTU). The liquid level sensor includes: A static pressure level gauge is installed in the middle of the inspection well wall above the rainwater pipe network; A radar-type level gauge is installed in the middle of the inspection well wall above the rainwater pipe network; The remote control unit (RTU) is electrically connected to both the hydrostatic level gauge and the radar level gauge.

10. A liquid level monitoring system suitable for rainwater pipe networks, characterized in that: include: The liquid level monitoring device as described in claim 8 or 9; The server is remotely connected to the liquid level monitoring device.

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