Buried metal touch opening pipeline identification device

Abstract

The utility model discloses a buried metal touch opening pipeline identification device, and relates to the technical field of pipeline detection. The device comprises a signal transmitting mechanism which is used for transmitting electric signals with specific frequency and voltage and is communicated with a first end of a touch opening pipeline through a first wire; the waveform detection mechanism is used for detecting the electric signal waveform of the second end of the mouth touching pipeline and is communicated with the second end of the mouth touching pipeline through a second wire; the signal emission mechanism and the waveform detection mechanism form a loop through a copper core wire. The purpose of identifying the same pipeline of the buried metal pipeline at low cost and time is achieved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection technology, specifically, a buried metal joint pipeline identification device. Background Technology

[0002] With the rapid development of urban construction, the construction of underground pipeline networks is also increasing, and their safe operation is becoming increasingly important. However, the concealment and complexity of underground pipeline networks make detection and confirmation difficult. Furthermore, due to various reasons, basic information on underground pipeline networks is often incomplete, requiring multiple methods to accurately identify and confirm underground pipelines. Taking gas pipelines as an example, gas companies must ensure the accuracy of pipeline location and direction during pipeline inspections, maintenance, emergency repairs, and gas outage contact checks. When the pipeline cannot be fully determined, it is usually necessary to consult a large amount of data and use metal pipeline detection instruments (referred to as pipe detectors) to conduct on-site detection and determine the pipeline location and direction. In practice, especially when contact checks are required, accurate judgment of the excavated pipeline is essential. However, for metal pipelines of the same diameter and material laid in the same trench (or at close intervals), or when there are significant interference from nearby communication or power cables, the use of pipe detectors is difficult and inaccurate.

[0003] Therefore, it is often necessary to excavate the pipeline or dig test pits at intervals, and then use a pipe detector to identify the pipeline section by section, which is time-consuming and costly. To solve the problem that pipe detectors cannot accurately detect and identify pipelines on site, there is an urgent need for a convenient and accurate device for identifying buried metal-jointed pipelines. Utility Model Content

[0004] The purpose of this utility model is to provide a buried metal pipe identification device to achieve the goal of identifying buried metal pipes at low cost and in a short time.

[0005] To achieve the above objectives, the present invention employs the following technical means:

[0006] A buried metal joint pipe identification device includes:

[0007] A signal transmitting mechanism is used to transmit electrical signals of a specific frequency and voltage, which are connected to the first end of the contact pipe via a first wire;

[0008] A waveform detection mechanism is used to detect the electrical signal waveform at the second end of the joint pipe, and is connected to the second end of the joint pipe through a second wire;

[0009] The signal transmitting mechanism and the waveform detection mechanism form a circuit through copper core wires.

[0010] Preferably, the signal transmitting mechanism is one of a grounding resistance meter, a megohmmeter, and a probe transmitter, and the waveform detection mechanism is an oscilloscope.

[0011] Furthermore, when the signal transmitting mechanism is a grounding resistor, it is used to transmit an electrical signal with a frequency of 130Hz and a voltage of 120V.

[0012] Furthermore, when the signal transmitting mechanism is a megohmmeter, it is used to transmit an electrical signal with a frequency of 0Hz and a voltage of 200V.

[0013] Furthermore, when the electrical signal transmitting mechanism is a probe transmitter, it is used to transmit electrical signals with a frequency of 512Hz, 8kHz, or 65kHz and a voltage of 30V.

[0014] Furthermore, alligator clips are installed at the ends of both the first and second conductors, and the alligator clips are connected to the connector pipe via a connecting device.

[0015] The connecting device includes a magnetic block, the first surface of which is magnetically attracted to the contact pipe. The first surface is constructed as an arc surface or a flat surface. The second surface of the magnetic block, opposite to the first surface, is magnetically connected to an iron base. A pair of iron mounting plates, perpendicular to and parallel to each other, are installed on the side of the base facing away from the magnetic block. A horizontal iron round rod is installed between the two mounting plates. An iron rectangular piece is rotatably mounted on the round rod. The rectangular piece is rotatably connected to the round rod and is attached to it. The alligator clips hold the edge of the rectangular piece.

[0016] This utility model has the following beneficial effects during use:

[0017] By employing various signal transmitting mechanisms to apply electrical signals of different voltages and frequencies to metal pipes, waveform detection mechanisms are used to detect unknown pipes. The detected signal voltage and frequency characteristics are used to determine if the pipe is the same as the original, effectively avoiding false detections when multiple adjacent pipes are located close together underground. Furthermore, the detection results are highly accurate, requiring only excavation at both ends. Moreover, copper core wires are used to form the loop between the signal transmitting and waveform detection mechanisms, effectively avoiding environmental influences caused by ground or air loops, ensuring that the detection results are not affected by external factors and significantly improving detection accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the connecting device of this utility model.

[0020] Among them, 1-signal transmitting mechanism, 2-contact pipe, 3-first wire, 4-waveform detection mechanism, 5-second wire, 6-copper core wire, 7-magnetic block, 8-base, 9-mounting plate, 10-round rod, 11-rectangular piece. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments 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. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.

[0027] Please refer to Figure 1 As shown, a buried metal joint pipe identification device includes:

[0028] The signal transmitting mechanism 1 is used to transmit electrical signals of a specific frequency and voltage, and is connected to the first end of the contact pipe 2 through the first wire 3;

[0029] The waveform detection mechanism 4 is used to detect the electrical signal waveform at the second end of the joint pipe 2, and is connected to the second end of the joint pipe 2 through the second wire 5;

[0030] The signal transmitting mechanism 1 and the waveform detection mechanism 4 form a circuit through the copper core wire 6.

[0031] In this way, multiple different signal transmitting mechanisms 1 are used to apply electrical signals of different voltages and frequencies to the metal pipes. Waveform detection mechanism 4 is then used to detect unknown pipes. The detected signal voltage and frequency characteristics are used to determine whether the pipes belong to the same entity, effectively avoiding false detections when multiple adjacent pipes are located close together underground. Moreover, the detection results are highly accurate, requiring only excavation at both ends. Furthermore, when forming a loop between the signal transmitting mechanism 1 and the waveform detection mechanism 4, copper core wires 6 are used to effectively avoid environmental influences caused by ground or air loops, ensuring that the detection results are not affected by external factors and significantly improving detection accuracy.

[0032] In another embodiment, a ground loop is used to form a loop between the signal transmitting mechanism 1 and the waveform detection mechanism 4. However, with the ground loop, the waveform displayed in the waveform detection mechanism 4 is severely affected, making it impossible to determine whether they belong to the same pipe based on the waveform.

[0033] Preferably, in one embodiment, the signal transmitting mechanism 1 is a grounding resistor and is used to transmit an electrical signal with a frequency of 130Hz and a voltage of 120V.

[0034] Preferably, in one embodiment, the signal transmitting mechanism 1 is a megohmmeter, used to transmit an electrical signal with a frequency of 0Hz and a voltage of 200V.

[0035] Preferably, in one embodiment, the signal transmitting mechanism 1 is a probe transmitter and is used to transmit an electrical signal with a frequency of 512Hz, 8kHz, or 65kHz and a voltage of 30V.

[0036] When a grounding resistance meter, megohmmeter, or pipe detector transmitter is used to transmit a specific electrical signal, and an oscilloscope is used as the waveform detection mechanism 4 on the equipment, and a copper core wire 6 is used to form a circuit, the oscilloscope detects a clear and intuitive waveform, with low signal attenuation, strong anti-interference ability, high accuracy in judging the pipeline, short detection time, and simple operation. Only 2 people are needed to operate it on site.

[0037] Furthermore, regarding the selection of copper wire, copper-clad steel-coated YE-TGE-707 is used. This wire consists of several fine copper and steel wires twisted together to form the core, which is then wrapped with an insulation layer. It is a single-strand communication conductor. Its characteristics include light weight, ease of carrying and storage, a certain degree of flexibility and mechanical strength, resistance to cold and high temperatures, wear resistance, and reusability. It can minimize external interference with waveforms during long-distance testing.

[0038] When using an oscilloscope to accurately identify metal pipes, after 10 on-site tests, it was able to quickly identify pipes laid in the same trench, with an average pipe confirmation time of 0.37 hours, significantly reducing the confirmation time compared to the 3.2 hours required for conventional testing. The on-site detection accuracy reached 100%, exceeding the target requirements. This solved the problems of requiring a significant amount of time to consult literature and experienced personnel for pipe identification, as well as the inability of pipe detectors to detect pipes laid in the same trench due to interference.

[0039] Furthermore, the overall cost of the equipment can be significantly reduced. A preferred method for cost reduction is to use a megohmmeter or a grounding resistance meter as the signal transmitting mechanism 1. The overall cost can be controlled to no more than 2000 yuan, ensuring both high efficiency and accuracy in the detection process.

[0040] Meanwhile, since the detection positions of the contact tube are mostly irregular and relatively thick, with some positions having curved outer walls, a specific mechanism is needed to facilitate the positioning and conduction of the first wire 3 and the second wire 5 with the contact tube, respectively.

[0041] Therefore, in another embodiment, please combine Figure 2 As shown, alligator clips are installed at the ends of the first wire 3 and the second wire 5, and the alligator clips are connected to the joint pipe 2 through a connecting device;

[0042] The connecting device includes a magnetic block 7. The first surface of the magnetic block 7 is magnetically attracted to the contact pipe 2. The first surface is constructed as an arc surface or a planar surface. The second surface of the magnetic block 7, which is opposite to the first surface, is magnetically connected to an iron base 8. A pair of iron mounting plates 9 are installed on the side of the base 8 facing away from the magnetic block 7. A horizontal iron round rod 10 is installed between the two mounting plates 9. An iron rectangular piece 11 is rotatably mounted on the round rod 10. The rectangular piece 11 is rotatably connected to the round rod 10. The alligator clip is clamped to the edge of the rectangular piece 11.

[0043] In this way, a magnetic block 7 with an arc-shaped or planar structure can be selected according to actual needs. The magnetic block 7 is attached to the magnet on the outer wall of the contact tube. Then, a rectangular piece 11 built on the base 8 is used, and the rectangular piece 11 can rotate around the round rod 10. In this way, the alligator clip is clamped on the outer edge of the rectangular piece 11, thereby ensuring that no matter what structure the outer wall of the contact tube has, or no matter what direction the rectangular piece 11 is in, the first wire 3 or the second wire 5 can be connected to the contact tube through the alligator clip, thereby realizing the normal use of the device of this application.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for identifying buried metal joint pipes, characterized in that, include: The signal transmitting mechanism (1) is used to transmit electrical signals of a specific frequency and voltage, and is connected to the first end of the contact pipe (2) through the first wire (3); The waveform detection mechanism (4) is used to detect the electrical signal waveform at the second end of the joint pipe (2), and is connected to the second end of the joint pipe (2) through the second wire (5); The signal transmitting mechanism (1) and the waveform detection mechanism (4) form a circuit through a copper core wire (6).

2. The buried metal joint pipe identification device according to claim 1, characterized in that, The signal transmitting mechanism (1) is one of a grounding resistance meter, a megohmmeter, and a probe transmitter, and the waveform detection mechanism (4) is an oscilloscope.

3. The buried metal joint pipe identification device according to claim 2, characterized in that, When the signal transmitting mechanism (1) is a grounding resistance meter, it is used to transmit an electrical signal with a frequency of 130Hz and a voltage of 120V.

4. The buried metal joint pipe identification device according to claim 2, characterized in that, When the signal transmitting mechanism (1) is a megohmmeter, it is used to transmit an electrical signal with a frequency of 0Hz and a voltage of 200V.

5. A buried metal joint pipe identification device according to claim 2, characterized in that, When the electrical signal transmitting mechanism (1) is a probe transmitter, it is used to transmit electrical signals with a frequency of 512Hz, 8kHz, or 65kHz and a voltage of 30V.

6. A buried metal joint pipe identification device according to any one of claims 1 to 5, characterized in that, Alligator clips are installed at the ends of the first conductor (3) and the second conductor (5), and the alligator clips are connected to the joint pipe (2) through a connecting device; The connecting device includes a magnetic block (7), the first surface of which is magnetically attracted to the joint pipe (2). The first surface is constructed as an arc surface or a planar surface. The magnetic block (7) is magnetically connected to an iron base (8) on the second surface opposite to the first surface. A pair of iron mounting plates (9) perpendicular to and parallel to each other are installed on the side of the base (8) facing away from the magnetic block (7). A horizontal iron round rod (10) is installed between the two mounting plates (9). An iron rectangular piece (11) is rotatably installed on the round rod (10). The rectangular piece (11) is rotatably connected to the round rod (10). The alligator clip is clamped on the edge of the rectangular piece (11).

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