NB-IoT (Narrow Band Internet of Things) intelligent water meter

Abstract

The embodiment of the utility model relates to the technical field of water meters, in particular to an NB-IoT (Narrow Band Internet of Things) intelligent water meter, which comprises a water meter pipe body, a water meter body, a water meter body and a water meter body, the water meter box body is connected with the main pipe body; the first water leakage detection assembly is connected with the water inlet pipe body, and the second water leakage detection assembly is connected with the water outlet pipe body; the water leakage detection assembly comprises a detection shell which is connected with the water inlet pipe body or the water outlet pipe body in a sleeved mode and can move in the axial direction of the water meter pipe body, and the detection shell is provided with a shell cavity; when the detection shell moves to the first position in the axial direction of the water meter pipe body, the connecting gap between the water inlet pipe body and the water inlet pipe or the connecting gap between the water outlet pipe body and the water outlet pipe enters the shell cavity. According to the NB-IoT intelligent water meter, water leakage detection and alarm can be automatically carried out, and water resource waste and potential safety hazards caused by long-time water leakage of the water meter are avoided.

Description

Technical Field

[0001] The embodiments of this specification relate to the field of water meter technology, and specifically to an NB-IoT Internet of Things smart water meter. Background Art

[0002] Water meter is one of the essential equipment in every household. It is installed at the water pipe entering the house to measure the total water consumption of users, which is convenient for water companies to use as a reference for collecting water fees. With the development of water meters, more and more users of smart water meters are using them.

[0003] However, there is a risk of leakage at the connection between the water meter body of the smart water meter and the household water pipe, and the existing smart water meters do not have the function of leakage detection. When a leakage occurs at the water pipe connection, users and staff cannot promptly grasp the leakage of the smart water meter. Long-term leakage can easily cause certain safety hazards and waste of water resources. Utility Model Content

[0004] In view of the shortcomings of the prior art, the embodiments of this specification propose an NB-IoT Internet of Things smart water meter, including:

[0005] The water meter body comprises a main body, and an inlet pipe body and an outlet pipe body connected to the main body;

[0006] The water meter box body is connected with the main pipe body;

[0007] Two water leakage detection components, the first water leakage detection component is connected to the water inlet pipe body, and the second water leakage detection component is connected to the water outlet pipe body; the water leakage detection component includes:

[0008] The detection shell is sleeved with the water inlet pipe body or the water outlet pipe body and can move along the axial direction of the water meter pipe body, and the detection shell is provided with a shell cavity; when the detection shell moves to a first position along the axial direction of the water meter pipe body, the connection gap between the water inlet pipe body and the water inlet pipe or the connection gap between the water outlet pipe body and the water outlet pipe enters the shell cavity; when the detection shell moves to a second position along the axial direction of the water meter pipe body, the connection gap between the water inlet pipe body and the water inlet pipe or the connection gap between the water outlet pipe body and the water outlet pipe moves out of the shell cavity;

[0009] A water immersion sensor is disposed in the shell cavity;

[0010] A controller is arranged in the water meter box, and the controller is electrically connected to the water immersion sensor through a connecting line;

[0011] The NB-IoT communication module is arranged in the water meter box, and the controller is wirelessly connected to the monitoring terminal through the NB-IoT communication module.

[0012] Preferably, the detection housing comprises:

[0013] An inner ring sleeve is sleeved with the water inlet pipe body or the water outlet pipe body;

[0014] An annular connecting plate, the inner ring side of which is connected to the first axial end of the inner ring sleeve;

[0015] An outer ring sleeve, a first axial end of which is connected to the outer ring side of the annular connecting plate, and an axial length of the outer ring sleeve is greater than an axial length of the inner ring sleeve;

[0016] The outer ring side of the annular water stop plate is connected to the second axial end of the outer ring sleeve.

[0017] Preferably, the inner ring sleeve is provided with a guide notch arranged along its axial direction, and the outer peripheral walls of the water inlet pipe body and the water outlet pipe body are provided with guide convex rails assembled and connected with the guide notch.

[0018] Preferably, both ends of the guide convex rail in the length direction are provided with limiting protrusions.

[0019] Preferably, the detection housing further comprises:

[0020] The first end of the wire-passing pipe in the length direction is connected to the annular connecting plate and communicated with the shell cavity, and the second end of the wire-passing pipe in the length direction is connected to the water meter box body and communicated with the box cavity of the water meter box body.

[0021] Preferably, the first axial end of the wire-passing tube is connected to the annular connecting plate, and the second axial end of the wire-passing tube is plugged into the wire-passing hole of the water meter box body.

[0022] Preferably, the second axial end of the wire passing tube is provided with a limiting abutment plate for contacting the inner wall of the water meter box body, and a sealing gasket body is provided on the side of the limiting abutment plate contacting the inner wall of the water meter box body.

[0023] Preferably, the detection housing further comprises:

[0024] A plurality of winding rods, one length direction end of each winding rod is connected to the annular connecting plate.

[0025] Preferably, the detection housing further comprises:

[0026] The elastic sealing ring body is connected to the inner ring side of the annular water stop plate.

[0027] Preferably, the connection between the side of the elastic sealing ring body facing away from the annular connecting plate and the inner ring side of the elastic sealing ring body is rounded.

[0028] Beneficial Effects

[0029] The NB-IoT Internet of Things smart water meter of the embodiment of this specification can automatically detect water leakage. When water leaks in the connection gap between the water inlet pipe body and the water inlet pipe or the connection gap between the water outlet pipe body and the water outlet pipe, the water leakage detection component can automatically detect the water leakage signal and send the water leakage signal to the controller, and the controller will automatically send the water leakage signal to the monitoring terminal, so that relevant personnel can obtain the water leakage situation of the water meter in time, and then take timely solutions to avoid water waste and safety hazards caused by long-term leakage of the water meter.

[0030] Further or more detailed beneficial effects will be described in detail in conjunction with specific examples in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of the NB-IoT Internet of Things smart water meter in the embodiments of this specification;

[0032] Figure 2 This is a schematic diagram of the structure of the water leakage detection component in the embodiment of this specification;

[0033] Figure 3 This is a structural schematic diagram of the water leakage detection component from another perspective in the embodiment of this specification;

[0034] Figure 4 This is a schematic diagram of the structure of the water inlet pipe body in the embodiment of this specification;

[0035] Figure 5 It is a schematic diagram of the structure of the elastic sealing ring and other components in the embodiment of this specification. DETAILED DESCRIPTION

[0036] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0037] Embodiment 1:

[0038] like Figure 1 As shown, this embodiment provides an NB-IoT Internet of Things smart water meter, including: a water meter body 100, a water meter box 200, a water leakage detection component, a controller and an NB-IoT communication module.

[0039] The water meter body 100 includes a main body 110, and an inlet pipe body 120 and an outlet pipe body 130 connected to the main body 110. The main body 110, the inlet pipe body 120 and the outlet pipe body 130 are integrally formed. The water meter box body 200 is connected to the main body 110.

[0040] The water meter of this embodiment is provided with two water leakage detection components. The first water leakage detection component is connected to the water inlet pipe body 120 , and the second water leakage detection component is connected to the water outlet pipe body 130 .

[0041] Among them, Figure 2 and Figure 3 As shown, the water leakage detection assembly includes: a detection housing 300 and a water immersion sensor 500 .

[0042] The detection housing 300 is sleeved with the water inlet pipe body 120 or the water outlet pipe body 130 and can move along the axial direction of the water meter pipe body 100, and the detection housing 300 is provided with a housing cavity. When the detection housing 300 moves to a first position along the axial direction of the water meter pipe body 100, the connection gap between the water inlet pipe body 120 and the water inlet pipe 400 or the connection gap between the water outlet pipe body 130 and the water outlet pipe enters the housing cavity; when the detection housing 300 moves to a second position along the axial direction of the water meter pipe body 100, the connection gap between the water inlet pipe body 120 and the water inlet pipe 400 or the connection gap between the water outlet pipe body 130 and the water outlet pipe moves out of the housing cavity. The water immersion sensor 500 is arranged in the housing cavity.

[0043] The controller is disposed in the water meter box 200 , and the controller is electrically connected to the water immersion sensor 500 via a connecting line.

[0044] The NB-IoT communication module is arranged in the water meter box 200, and the controller is wirelessly connected to the monitoring terminal through the NB-IoT communication module. Narrow Band Internet of Things (NB-IoT) is an important branch of the Internet of Everything. NB-IoT is built on a cellular network and only consumes about 180kHz of bandwidth. It can be directly deployed on a GSM network, UMTS network or LTE network, which can reduce deployment costs.

[0045] The installation operation of the water meter in this embodiment is the same as the installation operation of an ordinary smart water meter, except that after the water meter is installed, the water leakage detection assembly located at the second position needs to be moved along the axial direction of the water meter tube body 100 to the first position. After the movement is completed, the connection gap between the water inlet pipe body 120 and the water inlet pipe 400 is located in the shell cavity of the detection shell 300 of the first water leakage detection assembly, and the connection gap between the water outlet pipe body 130 and the water outlet pipe is located in the shell cavity of the detection shell 300 of the second water leakage detection assembly. Figure 1 In the figure, the detection housing 300 on the left is located at the first position and has completed the axial movement; the detection housing 300 on the right is located at the second position and has not started the axial movement.

[0046] Working principle:

[0047] When water leaks from the connection gap between the water inlet pipe body 120 and the water inlet pipe 400 or the connection gap between the water outlet pipe body 130 and the water outlet pipe, the outflowing water will accumulate in the shell cavity of the detection shell 300. When a certain amount of water accumulates in the shell cavity of the detection shell 300, the water immersion sensor 500 will detect a "water leakage signal" and send the "water leakage signal" to the controller, and the controller will send the "water leakage signal" to the monitoring terminal. The monitoring terminal can be a monitoring platform of a water company. When the staff of the water company knows that a user's water meter is leaking through the monitoring platform, they will immediately send maintenance personnel to repair the water meter to avoid the water meter from wasting water resources and causing safety hazards due to long-term leakage.

[0048] Further, such as Figure 2 and Figure 3 As shown, the detection housing 300 includes: an inner ring sleeve 310 , an annular connecting plate 320 , an outer ring sleeve 330 and an annular water stop plate 340 which are integrally formed.

[0049] The inner ring sleeve 310 is sleeved with the water inlet pipe body 120 or the water outlet pipe body 130. The inner ring diameter of the inner ring sleeve 310 is slightly larger than the outer diameter of the water inlet pipe body 120 and the water outlet pipe body 130, so that the detection housing 300 can move smoothly on the water inlet pipe body 120 or the water outlet pipe body 130.

[0050] The inner ring side of the annular connecting plate 320 is connected to the first axial end of the inner ring sleeve 310. The annular connecting plate 320 is provided with a threading hole for allowing the connecting wire to pass through.

[0051] The first axial end of the outer ring sleeve 330 is connected to the outer ring side of the annular connecting plate 320, and the axial length of the outer ring sleeve 330 is greater than the axial length of the inner ring sleeve 310. The axial length of the outer ring sleeve 330 may be twice the axial length of the inner ring sleeve 310. When the detection housing 300 moves to the first position, the axial free end of the inner ring sleeve 310 is at a certain distance from the connection gap between the water inlet pipe body 120 and the water inlet pipe 400 or the connection gap between the water outlet pipe body 130 and the water outlet pipe, and the inner ring sleeve 310 does not contact the connection gap, while the outer ring sleeve 330 can cover the connection gap.

[0052] The outer ring side of the annular water stop plate 340 is connected to the second axial end of the outer ring sleeve 330. The annular water stop plate 340 cooperates with the outer ring sleeve 330, the annular connecting plate 320, and the inner ring sleeve 310 to form a shell cavity, so that the water flowing out of the connection gap can accumulate in the shell cavity. The annular water stop plate 340 needs to have a certain radial length (the radial length here refers to the difference between the outer ring diameter and the inner ring diameter of the annular water stop plate 340) so that the shell cavity can accumulate a certain amount of water, and thus can effectively trigger the water immersion sensor 500. And the inner ring diameter of the annular water stop plate 340 needs to be larger than the outer pipe diameter of the water inlet pipe 400 and the water outlet pipe, so that the connection gap can enter and exit the shell cavity of the detection shell 300.

[0053] Further, such as Figure 3 and Figure 4 As shown, the inner ring sleeve 310 is provided with a guide notch 311 arranged along its axial direction, and the outer peripheral walls of the water inlet pipe body 120 and the water outlet pipe body 130 are both provided with a guide convex rail 121 assembled and connected with the guide notch 311 .

[0054] In order to detect water leakage quickly and effectively, the present embodiment sets the water immersion sensor 500 at the bottom of the shell cavity. The guide convex rail 121 is in the shape of a long strip, and the setting of the guide notch 311 and the guide convex rail 121 ensures that the detection shell 300 will not rotate circumferentially when moving along the axial direction of the water meter tube body 100, thereby ensuring that the water immersion sensor 500 is always located at the bottom of the shell cavity, and finally the water leakage detection component can always effectively detect water leakage.

[0055] Further, such as Figure 4 As shown, both ends of the guide convex rail 121 in the longitudinal direction are provided with limit protrusions 122. The limit protrusions 122 play a positioning role. When the detection housing 300 moves to abut against the limit protrusion 122 on the left (in Figure 4 ), indicating that the detection housing 300 has moved to the first position, and the first position is more appropriate; when the detection housing 300 moves to abut against the right limiting protrusion 122 (at Figure 4 ), indicating that the detection housing 300 has moved to the second position, and the second position is more appropriate.

[0056] In addition, a magnetic attraction layer may be provided on the limiting protrusion 122 , and a magnetic attraction docking layer may be provided on the inner ring sleeve 310 , so that the detection housing 300 can be fixed by magnetic attraction after being moved to the first position or the second position.

[0057] Further, such as Figure 2 As shown, the detection housing 300 further includes a wire tube 350 .

[0058] The first end of the wire tube 350 in the length direction is connected to the annular connecting plate 320 and communicates with the shell cavity, and the second end of the wire tube 350 in the length direction is connected to the water meter box body 200 and communicates with the box cavity of the water meter box body 200. Specifically, the first axial end of the wire tube 350 is connected and fixed to the annular connecting plate 320, and the second axial end of the wire tube 350 is plugged into the wire hole of the water meter box body 200.

[0059] The second axial end of the wire tube 350 is inserted into the wire hole of the water meter box 200. When the detection housing 300 moves from the first position to the second position, the second axial end of the wire tube 350 is inserted into the water meter box 200; when the detection housing 300 moves from the second position to the first position, the second axial end of the wire tube 350 is pulled out of the water meter box 200 but does not leave the water meter box 200, and only the insertion length becomes shorter.

[0060] The connecting wire between the detection housing 300 and the water meter box body 200 is exposed to the outside. The wire tube 350 of this embodiment is mainly used to protect the connecting wire exposed to the outside and enable the connecting wire to move with the detection housing 300.

[0061] Further, such as Figure 5 As shown, the second axial end of the wire tube 350 is provided with a limiting plate 351 for contacting the inner wall of the water meter box body 200, and a sealing gasket is provided on the side of the limiting plate 351 contacting the inner wall of the water meter box body 200.

[0062] When the detection housing 300 moves to the first position, the limit stop plate 351 just contacts the inner wall of the water meter box 200 through the sealing gasket. The sealing gasket can block the wire hole of the water meter box 200 to prevent moisture and dust outside the water meter box 200 from entering the water meter box 200 and affecting the working performance of various components inside the water meter box 200 (such as the controller and NB-IoT communication module).

[0063] Further, such as Figure 2 and Figure 3 As shown, the detection housing 300 further includes: a plurality of winding rods 360. A lengthwise end of each winding rod 360 is connected to the annular connecting plate 320.

[0064] The threading hole is provided at the upper part of the annular connecting plate 320, and three winding rods 360 are provided on the left and right sides of the annular connecting plate 320 between the water sensor 500 and the threading hole. The staff can choose to wind the connecting wires located inside the shell cavity on the three winding rods 360 on the left or on the three winding rods 360 on the right. The provision of the winding rods 360 can make the layout of the connecting wires more reasonable, and avoid the connecting wires being randomly placed to affect the normal operation of the water leakage detection component.

[0065] Further, such as Figure 5 As shown, the detection housing 300 further includes an elastic sealing ring body 370 .

[0066] The elastic sealing ring body 370 is connected to the inner ring side of the annular water stop plate 340. The diameter of the ring opening of the elastic sealing ring body 370 is equal to the outer diameter of the water inlet pipe 400 and the water outlet pipe. The elastic sealing ring body 370 can seal the shell cavity to prevent moisture and dust in the environment from entering the shell cavity and affecting the normal operation of the water leakage detection component.

[0067] In addition, the connection between the side of the elastic sealing ring body 370 facing away from the annular connecting plate 320 and the inner ring side of the elastic sealing ring body 370 is rounded, which makes it easier for the elastic sealing ring body 370 to be inserted into the water inlet pipe 400 or the water outlet pipe.

[0068] The above embodiments are only for describing the preferred implementation of the utility model, and are not intended to limit the concept and scope of the utility model. Without departing from the design concept of the utility model, various modifications and improvements made by ordinary persons in the art to the technical solution of the utility model should fall within the protection scope of the utility model, and the technical contents of the utility model for protection have been fully recorded in the claims.

Claims

1. An NB-IoT Internet of Things smart water meter, characterized in that: include: A water meter pipe body (100) comprises a main pipe body (110), and a water inlet pipe body (120) and a water outlet pipe body (130) connected to the main pipe body (110); A water meter box body (200) connected to the main pipe body (110); Two water leakage detection components, the first water leakage detection component is connected to the water inlet pipe body (120), and the second water leakage detection component is connected to the water outlet pipe body (130); the water leakage detection component comprises: A detection shell (300) is sleeved with the water inlet pipe body (120) or the water outlet pipe body (130) and is movable along the axial direction of the water meter pipe body (100), and the detection shell (300) is provided with a shell cavity; when the detection shell (300) moves along the axial direction of the water meter pipe body (100) to a first position, a connection gap between the water inlet pipe body (120) and the water inlet pipe (400) or a connection gap between the water outlet pipe body (130) and the water outlet pipe enters the shell cavity; when the detection shell (300) moves along the axial direction of the water meter pipe body (100) to a second position, a connection gap between the water inlet pipe body (120) and the water inlet pipe (400) or a connection gap between the water outlet pipe body (130) and the water outlet pipe moves out of the shell cavity; A water immersion sensor (500) is arranged in the housing cavity; A controller, arranged in the water meter box (200), and the controller is electrically connected to the water immersion sensor (500) via a connecting line; An NB-IoT communication module is arranged in the water meter box (200), and the controller is wirelessly connected to the monitoring terminal via the NB-IoT communication module.

2. The NB-IoT Internet of Things smart water meter according to claim 1, characterized in that: The detection housing (300) comprises: An inner ring sleeve (310) sleeved with the water inlet pipe body (120) or the water outlet pipe body (130); An annular connecting plate (320), the inner ring side of which is connected to the first axial end of the inner ring sleeve (310); An outer ring sleeve (330), a first axial end of which is connected to the outer ring side of the annular connecting plate (320), and an axial length of the outer ring sleeve (330) is greater than an axial length of the inner ring sleeve (310); An annular water stop plate (340) has an outer ring side connected to the second axial end of the outer ring sleeve (330).

3. The NB-IoT Internet of Things smart water meter according to claim 2, characterized in that: The inner ring sleeve (310) is provided with a guide notch (311) arranged along its axial direction, and the outer peripheral walls of the water inlet pipe body (120) and the water outlet pipe body (130) are both provided with a guide convex rail (121) assembled and connected to the guide notch (311).

4. The NB-IoT Internet of Things smart water meter according to claim 3, characterized in that: Limiting protrusions (122) are provided at both ends in the length direction of the guide protruding rail (121).

5. The NB-IoT Internet of Things smart water meter according to claim 2, characterized in that: The detection housing (300) further comprises: A wire-passing tube (350) has a first end in the length direction connected to the annular connecting plate (320) and communicated with the shell cavity, and a second end in the length direction of the wire-passing tube (350) is connected to the water meter box body (200) and communicated with the box cavity of the water meter box body (200).

6. The NB-IoT Internet of Things smart water meter according to claim 5, characterized in that: The first axial end of the wire passing tube (350) is connected to the annular connecting plate (320), and the second axial end of the wire passing tube (350) is plugged into the wire passing hole of the water meter box body (200).

7. The NB-IoT Internet of Things smart water meter according to claim 6, characterized in that: The second axial end of the wire passing tube (350) is provided with a limiting abutment plate (351) for contacting the inner wall of the water meter box body (200), and a sealing gasket body is provided on the side of the limiting abutment plate (351) contacting the inner wall of the water meter box body (200).

8. The NB-IoT Internet of Things smart water meter according to claim 2, characterized in that: The detection housing (300) further comprises: A plurality of winding rods (360), wherein one end in the length direction of each winding rod (360) is connected to the annular connecting plate (320).

9. The NB-IoT Internet of Things smart water meter according to claim 2, characterized in that: The detection housing (300) further comprises: The elastic sealing ring body (370) is connected to the inner ring side of the annular water stop plate (340).

10. The NB-IoT Internet of Things smart water meter according to claim 9, characterized in that: The connection between the side of the elastic sealing ring body (370) facing away from the annular connecting plate (320) and the inner ring side of the elastic sealing ring body (370) is arranged in a rounded shape.

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