A pipeline detection sensor

Abstract

The utility model discloses a pipeline detection sensor for detecting pipeline blockage, which includes: a shell, which is provided with a receiving cavity, and one side of the shell is provided as a concave arc surface; a capacitive sensing metal sheet, which is provided as an arc structure matching the arc surface, and the capacitive sensing metal sheet is fitted and installed on the arc surface; a circuit board is installed in the receiving cavity; a spring ejector, one end of the spring ejector is connected to the circuit board, and the other end passes through the shell and is connected to the capacitive sensing metal sheet; a capacitive sensing sensor is provided on the circuit board, and the spring ejector is electrically connected to the capacitive sensing sensor. The utility model embodiment arranges a capacitive sensing metal sheet on one side of the shell, one end of the spring ejector is electrically connected to the capacitive sensing sensor, and the other end is connected to the capacitive sensing metal sheet, the capacitive sensing metal sheet contacts the pipeline wall, and the capacitive sensor collects the sensing value of the liquid in the pipeline in real time, thereby realizing accurate judgment of pipeline blockage.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline detection equipment, in particular to a pipeline detection sensor. Background Art

[0002] In the field of pipeline maintenance and management, due to the widespread application of pipeline systems in modern life, their safe and efficient operation is extremely important. With the continuous advancement and innovation of science and technology, pipeline blockage detection equipment has also ushered in unprecedented development opportunities.

[0003] Now there are many advanced pipeline blockage detection devices on the market, including some sensors that can detect the liquid sensing value in the pipeline. The development of these devices has greatly simplified the workflow of pipeline blockage detection, reduced the difficulty of operation, and brought great convenience to engineers and technicians when detecting pipeline blockage.

[0004] However, some of these sensors still have a high misjudgment rate when detecting pipeline conditions. These misjudgments may not only lead to a waste of resources, but may also bring potential risks to the safe operation of the pipeline system. Utility Model Content

[0005] The utility model aims to provide a pipeline detection sensor, aiming to solve the problem of high misjudgment rate of pipeline detection sensors in the prior art.

[0006] The utility model provides a pipeline detection sensor for detecting pipeline blockage, which comprises: a housing provided with a containing cavity, one side of the housing being provided with a concave arc surface;

[0007] A capacitive sensing metal sheet is configured as an arc-shaped structure matching the arc-shaped surface, and the capacitive sensing metal sheet is fitted on the arc-shaped surface;

[0008] A circuit board is installed in the accommodating cavity;

[0009] A spring ejector pin, one end of which is connected to the circuit board, and the other end of which passes through the housing and is connected to the capacitive sensing metal sheet;

[0010] The capacitive sensing sensor is arranged on the circuit board, and the spring ejector pin is electrically connected to the capacitive sensing sensor.

[0011] Optionally, a single chip microcomputer is further included, which is arranged on the circuit board, and the capacitive sensing sensor is electrically connected to the single chip microcomputer.

[0012] Optionally, it also includes an NB-IoT module, which is arranged on the circuit board, and the single-chip computer is electrically connected to the NB-IoT module.

[0013] Optionally, it also includes an antenna module, which is electrically connected to the NB-IoT module.

[0014] Optionally, the capacitive sensing metal sheet is made of metal copper foil.

[0015] Optionally, at least two capacitive sensing metal sheets are provided, and at least two spring ejectors are provided and respectively connected to at least two of the capacitive sensing metal sheets.

[0016] Optionally, it also includes a power module electrically connected to the circuit board, the power module is installed in the accommodating cavity, and a charging port and a switch are provided at the end of the shell, the charging port and the switch are both electrically connected to the circuit board, the charging port is used to charge the power module, and the switch is used to control the pipeline detection sensor to be turned on or off.

[0017] Optionally, the shell includes a first shell and a second shell, the accommodating cavity is arranged in the first shell, the arc surface is arranged on one side of the first shell, an opening communicating with the accommodating cavity is arranged on the other side of the first shell, and the second shell covers the opening.

[0018] Optionally, a strap opening is provided on the second shell.

[0019] Optionally, there are at least two strap openings, which are respectively arranged on two opposite sides of the second shell.

[0020] The embodiment of the utility model collects the sensing value of the liquid in the pipeline in real time through the capacitive sensing sensor. When the inner wall of the pipeline is blocked by an object, the flow state of the liquid on the inner wall of the pipeline will change, thereby causing a change in the capacitance value. The capacitive sensing sensor can accurately capture this change and convert it into an electrical signal to transmit to the circuit board for processing. By analyzing these electrical signals, it can accurately determine whether the pipeline is blocked and the severity of the blockage, reducing the misjudgment rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the explosion structure of a pipeline detection sensor provided by an embodiment of the utility model;

[0023] Figure 2 A schematic diagram of the structure of a pipeline detection sensor provided by an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of the structure of a circuit board provided in an embodiment of the utility model;

[0025] Figure 4 Another structural schematic diagram of the pipeline detection sensor provided by an embodiment of the utility model;

[0026] Figure 5 Another exploded structural schematic diagram of the pipeline detection sensor provided by the embodiment of the utility model;

[0027] Figure 6 Another structural schematic diagram of the pipeline detection sensor provided in an embodiment of the utility model.

[0028] Description of the symbols in the figure:

[0029] 1. Shell; 11. Accommodating chamber;

[0030] 12. Charging port; 13. Switch; 14. First housing; 141. Opening; 15. Second housing; 151. Strap opening;

[0031] 2. Capacitive sensing metal sheet; 3. Circuit board; 4. Spring ejector; 5. Capacitive sensing sensor; 6. Microcontroller; 7. NB-IoT module; 8. Antenna module; 9. Power module. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0034] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0035] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0036] See also Figure 1 and Figure 2 The embodiment of the utility model provides a pipeline detection sensor for detecting pipeline blockage, comprising: a shell 1, provided with a accommodating cavity 11, one side of the shell 1 is provided as a concave arc surface; a capacitive sensing metal sheet 2, provided as an arc structure matching the arc surface, the capacitive sensing metal sheet 2 is fitted and installed on the arc surface; a circuit board 3, installed in the accommodating cavity 11; a spring ejector 4, one end of the spring ejector 4 is connected to the circuit board 3, and the other end passes through the shell 1 and is connected to the capacitive sensing metal sheet 2; a capacitive sensing sensor 5, provided on the circuit board 3, the spring ejector 4 is electrically connected to the capacitive sensing sensor 5.

[0037] In this embodiment, the spring pin 4 is a contact conductor, similar to a wire, one end of which is electrically connected to the capacitive sensing sensor 5, and the other end passes through the housing 1 and is connected to the capacitive sensing metal sheet 2, so that the connection between the capacitive sensing sensor 5 and the capacitive sensing metal sheet 2 is more convenient, and the electrical connection between the two can be achieved without welding wires.

[0038] In a specific embodiment, the pipeline detection sensor is directly fixed on the outer wall of the pipeline, and the capacitive sensing metal sheet 2 is in contact with the outer wall of the pipeline. When the inner wall of the pipeline is blocked by an object, the flow state of the liquid in the pipeline will change. At this time, the amount of water in the pipeline will cause the capacitance field generated by the capacitive sensing metal sheet 2 to change, and then the capacitance value will change. This change is transmitted to the capacitive sensing sensor 5 through the spring ejector 4. The capacitive sensing sensor 5 can accurately capture this change, that is, it can accurately collect the sensing value of the liquid in the pipeline (the sensing value of the liquid is also the capacitance value), and convert it into an electrical signal and output it to the circuit board 3 for processing. By analyzing these electrical signals, the sensor can accurately determine whether the pipeline is blocked and the severity of the blockage.

[0039] It should be noted that the more water accumulates inside the pipeline, the greater the induced capacitance value, the more serious the blockage in the pipeline, and vice versa.

[0040] It should be further explained that the purpose of designing one side of the housing 1 as a concave arc surface is to enable the pipeline detection sensor to better adapt to the inner wall of pipelines of various shapes, especially those with curved or irregular shapes, which not only increases the contact area with the outer wall of the pipeline, but also enhances the stability of the connection with the outer wall of the pipeline, and reduces false alarms caused by pipeline vibration or water flow impact. At the same time, the design of the arc surface also enables the pipeline detection sensor to be more flexible in adapting to different installation angles and positions during installation.

[0041] The capacitive sensing metal sheet 2 adopts an arc structure that matches the arc surface, which can ensure that it maintains a uniform contact distance with the outer wall of the pipeline, thereby improving the accuracy and stability of capacitance measurement, so that the capacitive sensing sensor 5 can more accurately collect the sensing value of the liquid inside the pipeline when detecting pipeline blockage.

[0042] Further, such as Figure 3 As shown, the pipeline detection sensor further includes: a single chip microcomputer 6, which is arranged on the circuit board 3, and the capacitive sensing sensor 5 is electrically connected to the single chip microcomputer 6. In this embodiment, the single chip microcomputer 6 generally has the characteristics of low power consumption, which can reduce energy consumption and extend the service life of the capacitive sensing sensor 5 while ensuring the normal operation of the pipeline detection sensor. The single chip microcomputer 6 can receive the signal from the capacitive sensing sensor 5 in real time, and perform a simple and fast processing and analysis of the data.

[0043] Specifically, the single chip computer 6 has built-in corresponding programs and algorithms, which can make intelligent judgments based on the change trend and characteristics of the capacitance value. According to the preset algorithm and capacitance threshold, the change of the capacitance value is judged. If the current capacitance value is higher than the set capacitance threshold, it means that there is a risk of blockage in the pipeline.

[0044] Moreover, the single chip microcomputer 6 can perform adaptive adjustment and self-calibration according to the changes in the environment and the aging degree of the sensor. It can ensure that the sensor maintains stable performance during long-term use and improve the accuracy and reliability of detection by regularly calibrating the capacitive sensing sensor 5.

[0045] Furthermore, the pipeline detection sensor also includes: an NB-IoT module 7, which is arranged on the circuit board 3, and the single-chip computer 6 is electrically connected to the NB-IoT module 7. In this embodiment, the NB-IoT module 7 provides a powerful remote communication capability for the pipeline detection sensor, sends the processed data in the single-chip computer 6 to the NB-IoT module 7, and controls the NB-IoT module 7 to send the data to the remote server or monitoring center, thereby realizing remote monitoring and management of the pipeline status.

[0046] Integrating the NB-IoT module 7 in the pipeline detection sensor can ensure that the sensor operates stably for a long time, without the need for frequent battery replacement, and reduces maintenance costs. Since the NB-IoT module 7 provides high-speed data transmission capabilities, the capacitive sensing sensor 5 can send the detected data to a remote server or monitoring center in real time, report blockage fault information in real time, and issue timely alarms, so that monitoring personnel can understand the operating status of the pipeline in a timely manner, discover and deal with potential problems in a timely manner, which not only further reduces the misjudgment rate, but also can effectively calculate the degree of pipeline blockage, and improve the efficiency and safety of pipeline management.

[0047] Through the NB-IoT module 7, the pipeline detection sensor can be connected to a remote server or monitoring center to achieve data storage, analysis and processing. Through the remote server or monitoring center, the status of the pipeline can be managed intelligently, including data analysis, early warning prompts, remote control and other functions, which improves the intelligence level of pipeline management.

[0048] The cloud server mainly calculates the fluctuation of the capacitance value collected from the capacitive sensing sensor 5, and determines the blockage of the pipeline through the relationship between the capacitance value fluctuation and time. For example, the longer the current capacitance value is higher than the set capacitance threshold, the more serious the pipeline blockage is.

[0049] Furthermore, the pipeline detection sensor also includes: an antenna module 8, and the antenna module 8 is electrically connected to the NB-IoT module 7. In the pipeline detection sensor, the antenna module 8 is connected to the NB-IoT module 7, which can enhance the signal transmission capability of the capacitive sensing sensor 5, so that the capacitive sensing sensor 5 can transmit data with the remote server or monitoring center more stably and quickly, reduce the loss and delay in data transmission, and improve the accuracy and real-time performance of the data.

[0050] In a specific embodiment, when the inner wall of the pipeline is blocked by an object, the flow state of the liquid on the inner wall of the pipeline will change. The capacitive sensing metal sheet 2 senses the change in the amount of water on the inner wall of the pipeline, thereby causing a change in the capacitance value, and transmits the change value to the capacitive sensing sensor 5. The capacitive sensing sensor 5 converts the collected capacitance value into an electrical signal and transmits it to the single-chip microcomputer 6 for processing. The single-chip microcomputer 6 then sends the processed data to the NB-IoT module 7, and controls the NB-IoT module 7 to send the data to a remote server or monitoring center. The capacitive sensing sensor 5 measures the liquid sensing value in the pipeline every 10 seconds, and packages the data and reports it to the remote server or monitoring center. The remote server or monitoring center analyzes the data collected by the capacitive sensing sensor 5, determines the pipeline blockage situation, and reports the blockage fault information in real time, and issues an alarm, so that the monitoring personnel can understand the operating status of the pipeline in a timely manner.

[0051] In this embodiment, the capacitive sensing metal sheet 2 is made of metal copper foil. Metal copper foil is a good conductive material with extremely low resistivity, ensuring that the capacitive sensing metal sheet 2 achieves efficient electrical signal transmission. Specifically, since one end of the spring ejector 4 is electrically connected to the capacitive sensing sensor 5, and the other end passes through the housing 1 and is connected to the capacitive sensing metal sheet 2, the capacitive sensing metal sheet 2 is in contact with the outer wall of the pipe, and the capacitive sensing metal sheet 2 has a penetration thickness of 10 to 30 mm, which is suitable for all PVC type pipes.

[0052] Further, such as Figure 4 As shown, at least two capacitive sensing metal sheets 2 are provided, and at least two spring ejector pins 4 are provided, and are respectively connected to at least two capacitive sensing metal sheets 2. Figure 4 It can be seen that there are two capacitive sensing metal sheets 2, two spring ejector pins 4, and the two capacitive sensing metal sheets 2 are respectively mounted on the arc surface of the housing 1, and each capacitive sensing metal sheet 2 is respectively connected to a spring ejector pin 4, and is electrically connected to the capacitive sensing sensor 5 through the spring ejector pin 4. Providing two capacitive sensing metal sheets 2 can enhance the sensing ability when it contacts the outer wall of the pipeline, more accurately sense the amount of water in the pipeline, and change the capacitance field generated by the capacitive sensing metal sheet 2, making the detection more accurate.

[0053] Further, such as Figure 5 As shown, the pipeline detection sensor also includes a power module 9 electrically connected to the circuit board 3. The power module 9 is installed in the accommodating cavity 11. A charging port 12 and a switch 13 are provided at the end of the shell 1. The charging port 12 and the switch 13 are both electrically connected to the circuit board 3. The charging port 12 is used to charge the power module 9, and the switch 13 is used to control the pipeline detection sensor to be turned on or off.

[0054] In this embodiment, the power module 9 is a lithium battery, which is directly installed in the accommodating cavity 11. The rechargeable lithium battery is used to power the pipeline detection sensor, and there is no need to connect an external power cord, thereby reducing the clutter of cables and the possible risk of damage.

[0055] A charging port 12 is provided at the end of the housing 1, so that the user can charge the power module 9 without disassembling the entire device of the pipeline detection sensor, thereby improving work efficiency. Figure 5 It can be seen that a square mounting portion protruding outward is provided on one side of the shell 1, and the charging port 12 is provided in the square mounting portion. The charging port 12 is a square opening with a narrow width and a long length, and its size is smaller than that of the square mounting portion. This design ensures the safety during charging and avoids safety hazards caused by improper operation.

[0056] Furthermore, the switch 13 is arranged in the square mounting portion and below the charging port 12. The switch 13 is also a square opening with a narrow width and a long length. The size of the switch 13 is smaller than the size of the charging port 12. The charging port 12 is set to a larger size in order to facilitate access to an external power source to charge the power module 9 through the charging port 12. Of course, the size of the switch 13 can also be larger than the size of the charging port 12, as long as it can be ensured that the charging port 12 and the switch 13 are both electrically connected to the circuit board 3.

[0057] In this embodiment, if Figure 5 and Figure 6 As shown, the shell 1 includes a first shell 14 and a second shell 15, the accommodating cavity 11 is arranged in the first shell 14, the arc surface is arranged on one side of the first shell 14, and the other side of the first shell 14 is provided with an opening 141 connected to the accommodating cavity 11, and the second shell 15 covers the opening 141.

[0058] The housing 1 is designed as a split structure of a first housing 14 and a second housing 15, which is convenient for subsequent maintenance and repair. If the internal components need to be replaced or repaired, only the first housing 14 needs to be opened without disassembling the entire housing. Screw holes are respectively provided around the first housing 14 and the second housing 15, and the second housing 15 is covered on the opening 141 of the first housing 14 by screws.

[0059] In this embodiment, a binding mouth 151 is provided on the second housing 15. The binding mouth 151 is provided in the middle of the second housing 15, which provides great convenience for installing and fixing the pipeline detection sensor, ensures that the best balance state can be achieved when the pipeline detection sensor is fastened, and prevents the pipeline detection sensor from shifting or tilting due to unstable fixation.

[0060] Furthermore, at least two binding ports 151 are provided, which are respectively provided on opposite sides of the second shell 15. The design of the two binding ports 151 enables the sensor to adapt to pipes of more different shapes and sizes, whether they are round, oval or other irregularly shaped pipes. In addition, the two binding ports 151 are relatively located in the middle of the second shell 15, which can keep the pipeline detection sensor in a fixed position on the outer wall of the pipeline to prevent it from falling off or causing other safety hazards; at the same time, the pipeline detection sensor is directly fixed to the outer wall of the pipeline through the binding ports 151, which makes installation more convenient, avoids corrosion of the pipeline detection sensor by sewage, and increases the service life.

[0061] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

[0062] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive.

[0063] Inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "including a..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A pipeline detection sensor for detecting pipeline blockage, characterized in that: include: A shell body is provided with a receiving cavity, and one side of the shell body is provided with a concave arc surface; A capacitive sensing metal sheet is configured as an arc-shaped structure matching the arc-shaped surface, and the capacitive sensing metal sheet is fitted on the arc-shaped surface; A circuit board is installed in the accommodating cavity; A spring ejector pin, one end of which is connected to the circuit board, and the other end of which passes through the housing and is connected to the capacitive sensing metal sheet; The capacitive sensing sensor is arranged on the circuit board, and the spring ejector pin is electrically connected to the capacitive sensing sensor.

2. A pipeline detection sensor according to claim 1, characterized in that: Also includes: The single chip microcomputer is arranged on the circuit board, and the capacitive sensing sensor is electrically connected to the single chip microcomputer.

3. A pipeline detection sensor according to claim 2, characterized in that: Also includes: The NB-IoT module is arranged on the circuit board, and the single-chip computer is electrically connected to the NB-IoT module.

4. A pipeline detection sensor according to claim 3, characterized in that: Also includes: An antenna module is electrically connected to the NB-IoT module.

5. The pipeline detection sensor according to claim 1, characterized in that: The capacitive sensing metal sheet is made of metal copper foil.

6. A pipeline detection sensor according to claim 1, characterized in that: There are at least two capacitive sensing metal sheets, and at least two spring ejector pins are respectively connected to at least two capacitive sensing metal sheets.

7. A pipeline detection sensor according to claim 1, characterized in that: It also includes a power module electrically connected to the circuit board, the power module is installed in the accommodating cavity, and a charging port and a switch are provided at the end of the shell, the charging port and the switch are both electrically connected to the circuit board, the charging port is used to charge the power module, and the switch is used to control the pipeline detection sensor to be turned on or off.

8. The pipeline detection sensor according to claim 1, characterized in that: The shell includes a first shell and a second shell, the accommodating cavity is arranged in the first shell, the arc surface is arranged on one side of the first shell, the other side of the first shell is provided with an opening communicating with the accommodating cavity, and the second shell covers the opening.

9. A pipeline detection sensor according to claim 8, characterized in that: The second shell is provided with a strap opening.

10. A pipeline detection sensor according to claim 9, characterized in that: There are at least two strap openings, which are respectively arranged on two opposite sides of the second shell.

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