An intelligent probe for DCGV detection and CIPS detection

Abstract

The present application relates to the technical field of pipeline transportation detection, and more particularly to an intelligent probe for DCVG detection and CIPS detection, comprising a probe main body, one end of the probe main body is fixedly connected with an electrode fixed copper column, the outer wall of one end of the electrode fixed copper column is movably connected with a copper sulfate solution reference electrode fixed tube, the inner wall of the copper sulfate solution reference electrode fixed tube is fixedly connected with a reference electrode, one end of the electrode fixed copper column is fixedly connected with a coil combination, and the outer wall of the probe main body is fixedly connected with a navigation plug fixing plate. The present application not only carries a reference electrode, but also embeds a satellite module to match the interrupter of CIPS, and simultaneously locates the detection point. The bottom of the probe is also embedded with a receiving / transmitting coil combination for intelligent ranging between probes. The multimeter pen navigation plug fixing plate is provided, so that after the multimeter is inserted, the device detection calibration can be carried out in the multimeter mode to obtain more detection information, improve the detection efficiency, and ensure the detection accuracy.

Description

Technical Field

[0001] This invention relates to the field of pipeline transportation inspection technology, and in particular to an intelligent probe for DCVG and CIPS inspection. Background Technology

[0002] Pipeline transportation is a long-distance transport method that uses pipelines to transport liquids and gases. It is a specialized mode of transporting petroleum, coal, and chemical products from production sites to markets, and is a special component of trunk line transportation within a unified transportation network. The pipeline transportation industry plays a vital role in national economic and social development. Pipeline transportation utilizes underground pipelines to deliver media such as crude oil, natural gas, refined oil, mineral slurry, and coal slurry to their destinations. Currently, two methods are used to prevent pipeline corrosion: external anti-corrosion coatings and cathodic protection. External anti-corrosion coatings are currently the most effective method. According to the National Association of Corrosion Engineers (NACE), over 90% of corrosion can be addressed through anti-corrosion coatings. However, in practical applications, relying solely on external anti-corrosion coatings is clearly insufficient. This is not only because the anti-corrosion material ages over time, but more importantly, during construction, scratches, defects, and unevenness are inevitable in the external anti-corrosion coating. Corrosion will concentrate at these damaged points, leading to faster corrosion rates and more severe corrosion. Therefore, in addition to external anti-corrosion coatings, cathodic protection is often used as a supplement. The two methods complement each other, thus more thoroughly preventing corrosion of buried pipelines. Furthermore, by measuring certain parameters of the pipeline under cathodic protection, the condition of both the anti-corrosion coating and the cathodic protection itself can be assessed, achieving integrated monitoring and protection.

[0003] Currently, the commonly used DCVG / CIPS detection method can effectively detect the damage points of the anti-corrosion layer of buried pipelines and the cathodic protection potential of the pipeline. Under normal circumstances, a probe equipped with a reference electrode of saturated copper sulfate solution can be used for detection. However, the existing probe has a single function and is only used as a single carrier. It lacks functionality and obtains less information. When performing DCVG apogee measurements, a ruler is also required to test and record the distance. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an intelligent probe for DCVG detection and CIPS detection, so as to solve the problem mentioned in the background art that the existing probe for DCVG (CIPS) detection is limited in function and only serves as a single carrier, which is insufficient in function and acquires less information. In addition, when performing DCVG apogee measurements, a ruler is still needed to measure and record the distance.

[0005] The technical solution of this invention to solve the above-mentioned technical problems is as follows: A smart probe for DCVG detection and CIPS detection includes a probe body. One end of the probe body is provided with an electrode fixing copper post, one end of which is fixedly connected to the probe body. The outer wall of the other end of the electrode fixing copper post is movably connected to one end of a copper sulfate solution reference electrode fixing tube, and a reference electrode is fixedly connected to the inner wall of the copper sulfate solution reference electrode fixing tube. A coil assembly is fixedly provided inside the probe body, and the electrode fixing copper post is connected to the coil assembly. An aerial insertion fixing plate and a data acquisition button fixing seat are fixedly installed on the outer wall of the probe body. A PCB circuit board is fixedly installed inside the probe body. The aerial insertion fixing plate and the data acquisition button fixing seat are both electrically connected to the PCB circuit board. A GPS adapter plate cover is movably connected to the other end of the probe body. A satellite module is fixedly installed inside the GPS adapter plate cover, and the satellite module is electrically connected to the PCB circuit board.

[0006] During DCVG testing, two smart probes are used. The distance between the two smart probes is set, and the satellite modules embedded in the two smart probes are matched with the interrupters in the CIPS testing process for detection and positioning. At the same time, the two coils in the two smart probes are combined to transmit and receive. By detecting the corresponding magnetic field and calculating the distance between the two smart probes according to relevant algorithms, a strong basis is provided for the operator's measurement, reducing the labor intensity. The PCB circuit board is connected to the satellite module for signal transmission and is connected to the aviation plug fixing plate. This invention not only carries a reference electrode, but also embeds a satellite module for CIPS interrupter matching and detection point positioning. The bottom of the probe also has a coil combination for transmitting and receiving, used for intelligent distance measurement between the smart probes. A multimeter probe is provided on the aviation plug fixing plate, which allows for equipment testing and calibration in multimeter mode after inserting the multimeter, obtaining more test information, improving test efficiency, and ensuring test accuracy.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the outer wall of the copper sulfate solution reference electrode fixing tube is movably connected with a plurality of internal hexagon screws, and the copper sulfate solution reference electrode fixing tube is fixedly connected to the electrode fixing copper column through the internal hexagon screws.

[0009] The advantages of adopting the above-mentioned further solution are: the copper sulfate solution reference electrode fixing tube is fixed to the electrode fixing copper column by using hexagonal screws, which is firm and convenient for disassembly and maintenance.

[0010] Furthermore, the probe body is made of carbon fiber.

[0011] The beneficial effects of adopting the above-mentioned further solutions are: the probe body is made of carbon fiber material, which is lightweight and aesthetically pleasing.

[0012] Furthermore, a data acquisition button fixing plate is provided on one side of the data acquisition button fixing base. The outer wall of the data acquisition button fixing plate is fixedly connected to the outer wall of the probe body. A first rivet is provided on the outer wall of the data acquisition button fixing base. The data acquisition button fixing base is fixedly connected to the outer wall of the data acquisition button fixing base through the first rivet. A data acquisition switch button is movably provided inside the data acquisition button fixing base. The data acquisition switch button is connected to the circuit of the PCB circuit board.

[0013] The beneficial effects of adopting the above-mentioned further solution are as follows: the material of the acquisition button fixing plate is aluminum alloy, which is installed on the upper part of the probe body; the material of the acquisition button fixing seat is aluminum alloy, which is installed on the acquisition button fixing plate; the installation method is to connect with the first rivet; and the acquisition switch button is used for button acquisition.

[0014] Furthermore, the outer wall of the aircraft insertion fixing plate is provided with a second rivet, and the aircraft insertion fixing plate is fixedly connected to the outer wall of the probe body through the second rivet. An aircraft insertion is fixedly inserted into the aircraft insertion fixing plate, and the aircraft insertion is connected to the circuit of the PCB circuit board.

[0015] The beneficial effects of adopting the above-mentioned further solution are: the probe is compatible with the aviation plug fixing plate, and the equipment can be tested and calibrated using a multimeter mode, which improves the detection accuracy of the reference electrode. The aviation plug fixing plate is installed with a second rivet, which is convenient to install and easy to disassemble and repair.

[0016] Furthermore, the GPS adapter plate cover has an internal thread on the inner wall of the end near the probe body, and an external thread on the outer wall of the end of the probe body away from the electrode fixing copper post. The GPS adapter plate cover is threadedly connected to the external thread on the probe body through the internal thread.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the GPS adapter plate cover and the probe body are connected by threads, which makes the connection convenient and quick.

[0018] Furthermore, an annular groove extending to the end of the GPS adapter plate cover is provided on the inner wall of one end near the probe body. The internal thread is provided at the bottom of the annular groove. An O-ring and a GPS adapter plate base are provided in the annular groove. The O-ring and the GPS adapter plate base are located between the end of the probe body and the side wall of the annular groove away from the probe body. The middle part of the GPS adapter plate base is fixedly connected to the outer wall of the satellite module.

[0019] The beneficial effect of adopting the above-mentioned further solution is that after tightening the probe body and the GPS adapter plate cover, the probe body will press against the GPS adapter plate base, and the GPS adapter plate base will squeeze the O-ring, and the O-ring will play a sealing role between the GPS adapter plate base and the GPS adapter plate cover.

[0020] Furthermore, an EVA spacer is fixedly connected to the outer wall of the PCB circuit board, and the outer wall of the EVA spacer is fixedly connected to the inner wall of the probe body.

[0021] The beneficial effect of adopting the above-mentioned further solution is that the material of the EVA spacer is polyester resin, and its function is to support the PCB circuit board, which is equivalent to the support of the PCB circuit board.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. This invention not only carries a reference electrode, but also embeds a satellite module for CIPS interrupt matching and location detection points. The bottom of the probe also has a coil combination for transmitting and receiving, used for intelligent distance measurement between intelligent probes. It has a multimeter probe mounting plate, which can be used to perform equipment testing and calibration in multimeter mode after inserting a multimeter, to obtain more testing information, improve testing efficiency, and ensure testing accuracy.

[0024] 2. The device is equipped with an embedded coil assembly. The two smart probes work in a transmit-receive mode to intelligently calculate the distance between them. The coil assembly used for transmit-receive in the two smart probes detects the corresponding magnetic field and calculates the distance between the two smart probes according to relevant algorithms. This eliminates the need to use a measuring tape on site, provides a strong basis for the operator's measurement, and reduces the labor intensity.

[0025] 3. The probe body is made of carbon fiber material, which is lightweight and aesthetically pleasing. The main body of the device is mostly connected by screws and rivets, which makes it convenient for inspection and maintenance. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a front view of the structure of the present invention;

[0028] Figure 3 For the present invention Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0029] Figure 4 This is an enlarged schematic diagram of the structure at the mounting plate of the aircraft insert in this invention;

[0030] Figure 5This is an enlarged schematic diagram of the structure at the data acquisition switch button of the present invention;

[0031] Figure 6 For the present invention Figure 3 Enlarged schematic diagram of the structure at point B;

[0032] Figure 7 For the present invention Figure 3 Enlarged schematic diagram of the structure at point C.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1. Probe body; 2. Copper sulfate solution reference electrode fixing tube; 3. Electrode fixing copper column; 4. Aerial plug fixing plate; 5. Data acquisition button fixing seat; 6. Data acquisition button fixing plate; 7. GPS adapter board base; 8. GPS adapter board cover; 9. Coil assembly; 10. EVA spacer; 11. Reference electrode; 12. PCB circuit board; 13. Satellite module; 14. Aerial plug; 15. Data acquisition switch button; 16. First rivet; 17. O-ring; 18. Internal thread; 19. Socket head screw; 20. Second rivet. Detailed Implementation

[0035] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0036] like Figures 1 to 7 As shown in the embodiments of this application, the probe body 1 is a long strip-shaped pipe pile structure. One end of the probe body 1 is fixedly connected to an electrode fixing copper column 3. A copper sulfate solution reference electrode fixing tube 2 is movably connected to the outer wall of one end of the electrode fixing copper column 3. A reference electrode 11 is fixedly connected to the inner wall of the copper sulfate solution reference electrode fixing tube 2. The end of the reference electrode 11 away from the electrode fixing copper column 3 extends out of the copper sulfate solution reference electrode fixing tube 2. A coil assembly 9 is fixedly connected to one end of the electrode fixing copper column 3. The coil assembly 9 is located in the probe body. Inside the probe body 1, an aerial insertion fixing plate 4 is fixedly connected to the outer wall of the probe body 1, and a data acquisition button fixing seat 5 is fixedly installed on the outer wall of the probe body 1. A PCB circuit board 12 is fixedly installed inside the probe body 1. The aerial insertion fixing plate 4 and the data acquisition button fixing seat 5 are both electrically connected to the PCB circuit board 12. The other end of the probe body 1 away from the copper sulfate solution reference electrode fixing tube 2 is movably connected to a GPS adapter plate cover 8. A satellite module 13 is fixedly installed inside the GPS adapter plate cover 8. The satellite module 13 is soldered to the PCB circuit board 12 (electrical connection).

[0037] In this embodiment, during DCVG testing, two smart probes are used, positioned at a certain distance. Each probe contains a satellite module 13, which is matched with the interrupter during CIPS testing for detection and positioning. Simultaneously, the two coil combinations 9 within the smart probes function as a transmitter and receiver. By detecting the corresponding magnetic field and calculating the distance between the two probes using relevant algorithms, a strong basis for the operator's measurements is provided, reducing labor intensity. The PCB circuit board 12 is used to solder the satellite module 13 for signal transmission. This invention not only includes a reference electrode 11 but also embeds a satellite module 13 for CIPS interrupter matching and detection point positioning. The bottom of the probes also embeds a transmit / receive coil combination 9 for intelligent distance measurement between the smart probes. A multimeter probe mounting plate 4 is provided, allowing for equipment testing and calibration in multimeter mode after inserting the multimeter, obtaining more testing information, improving testing efficiency, and ensuring testing accuracy.

[0038] like Figure 2 , Figure 3 , Figure 6 As shown, the outer wall of the copper sulfate solution reference electrode fixing tube 2 is movably connected with multiple hexagonal screws 19, and the copper sulfate solution reference electrode fixing tube 2 is fixedly connected to the electrode fixing copper column 3 through the provided hexagonal screws 19.

[0039] In this embodiment, the copper sulfate solution reference electrode fixing tube 2 is fixed to the electrode fixing copper column 3 using hexagonal screws 19, which is secure and convenient for disassembly and maintenance.

[0040] The probe body 1 is made of carbon fiber material.

[0041] In this implementation plan, the probe body 1 is made of carbon fiber material, which is lightweight and aesthetically pleasing.

[0042] like Figure 4 As shown, the outer wall of the aircraft insertion fixing plate 4 is provided with a second rivet 20, the aircraft insertion fixing plate 4 is fixedly connected to the outer wall of the probe body 1 through the second rivet 20, and an aircraft insertion 14 is fixedly inserted on the aircraft insertion fixing plate 4, the aircraft insertion 14 is electrically connected to the PCB circuit board 12.

[0043] In this implementation scheme, the probe body 1 is compatible with the aviation plug fixing plate 4, which can be used in multimeter mode for equipment testing and calibration, thereby improving the testing accuracy of the reference electrode 11. The aviation plug fixing plate 4 is installed using the second rivet 20, which is convenient to install and easy to disassemble and maintain.

[0044] like Figure 5As shown, a data acquisition button fixing plate 6 is provided on one side of the data acquisition button fixing base 5. The outer wall of the data acquisition button fixing plate 6 is fixedly connected to the outer wall of the probe body 1. The outer wall of the data acquisition button fixing base 5 is provided with a first rivet 16. The data acquisition button fixing base 5 is fixedly connected to the outer wall of the data acquisition button fixing base 5 through the first rivet 16. A data acquisition switch button 15 is movably provided inside the data acquisition button fixing base 5. The data acquisition switch button 15 is electrically connected to the PCB circuit board 12.

[0045] In this embodiment, the acquisition button fixing plate 6 is made of aluminum alloy and is installed on the upper part of the probe body 1. The acquisition button fixing seat 5 is made of aluminum alloy and is installed on the acquisition button fixing plate 6. The installation method is to connect it with the first rivet 16. The acquisition switch button 15 is used for button acquisition.

[0046] like Figure 7 As shown, the GPS adapter plate cover 8 has an internal thread 18 on the inner wall of one end near the probe body 1, and an external thread on the outer wall of one end of the probe body 1. The GPS adapter plate cover 8 is threadedly connected to one end of the probe body 1 through the internal thread 18. The GPS adapter plate cover 8 is a tubular structure with one end closed, and the unclosed end has the internal thread 18.

[0047] In this embodiment, the GPS adapter plate cover 8 and the probe body 1 are connected by a thread, which makes the connection convenient and quick.

[0048] like Figure 7 As shown, the inner wall of the GPS adapter plate cover 8 near the probe body 1 has an annular groove extending to the end of the GPS adapter plate cover 8. The internal thread 18 is located at the bottom of the annular groove. An O-ring 17 and a GPS adapter plate base 7 are located in the annular groove. The O-ring 17 and the GPS adapter plate base 7 are located between the end of the probe body 1 and the side wall of the annular groove away from the probe body 1. After the internal thread 18 is threadedly connected to the external thread, the end of the probe body 1 and the groove wall of the annular groove clamp the O-ring 17 and the GPS adapter plate base 7. The GPS adapter plate base 7 is located between the end face of the probe body 1 and the O-ring 17. The middle part of the GPS adapter plate base 7 is fixedly connected to the outer wall of the satellite module 13.

[0049] In this embodiment, after tightening the probe body 1 and the GPS adapter plate cover 8, the probe body 1 will press against the GPS adapter plate base 7, and the GPS adapter plate base 7 will squeeze the O-ring 17, which will seal the GPS adapter plate base 7 and the GPS adapter plate cover 8.

[0050] like Figure 3 As shown, an EVA sleeve 10 is fixedly connected to the outer wall of the PCB circuit board 12, and the outer wall of the EVA sleeve 10 is fixedly connected to the inner wall of the probe body 1.

[0051] In this embodiment, the EVA spacer 10 is made of polyester resin and serves to support the PCB circuit board 12, acting as a bracket for the PCB circuit board 12.

[0052] The working principle and usage process of this invention: During DCVG testing, two of these devices are taken. The distance between the two smart probes is determined. Satellite modules 13 are embedded in both smart probes, which are matched with the interrupter in the CIPS testing process for detection and positioning. At the same time, the two coil combinations 9 in the two smart probes are one for transmitting and one for receiving. By detecting the corresponding magnetic field and calculating the distance between the two smart probes according to relevant algorithms, a strong basis is provided for the operator's measurement, reducing the labor intensity. The PCB circuit board 12 is used to solder the satellite modules 13 for signal transmission and connects to the aviation plug fixing plate 4. This invention not only carries the reference electrode 11, but also embeds the satellite module 13 for CIPS interrupter matching and positioning of the detection point. The bottom of the smart probe also embeds the coil combination 9 for receiving / transmitting, which is used for intelligent distance measurement between the two smart probes. The aviation plug fixing plate 4 has a multimeter probe, which can be inserted to perform equipment testing and calibration in multimeter mode to obtain more testing information, improve testing efficiency, and ensure testing accuracy.

[0053] In the description of this invention, it should be understood that the terms "center," "length," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "inner," "outer," "circumferential," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the system 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 invention.

[0054] In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 smart probe for DCVG detection and CIPS detection, characterized in that, The probe includes a probe body (1), one end of which is provided with an electrode fixing copper post (3), one end of which is fixedly connected to the probe body (1), and the outer wall of the other end of the electrode fixing copper post (3) is movably connected to one end of a copper sulfate solution reference electrode fixing tube (2), and a reference electrode (11) is fixedly connected to the inner wall of the copper sulfate solution reference electrode fixing tube (2); a coil assembly (9) is fixedly provided inside the probe body (1), and the electrode fixing copper post (3) is connected to the coil assembly (9). A flight insertion mounting plate (4) and a data acquisition button mounting base (5) are fixedly installed on the outer wall of the main body (1). A PCB circuit board (12) is fixedly installed inside the probe body (1). The flight insertion mounting plate (4) and the data acquisition button mounting base (5) are both electrically connected to the PCB circuit board (12). A GPS adapter plate cover (8) is movably connected to the other end of the probe body (1). A satellite module (13) is fixedly installed inside the GPS adapter plate cover (8). The satellite module (13) is electrically connected to the PCB circuit board (12). The outer wall of the copper sulfate solution reference electrode fixing tube (2) is movably connected with a plurality of internal hexagon screws (19). The copper sulfate solution reference electrode fixing tube (2) is fixedly connected to the electrode fixing copper column (3) through the internal hexagon screws (19). The screw end of the internal hexagon screw (19) passes through the electrode fixing copper column (3) and is inserted into the reference electrode (11). The two coils in the two smart probes (9) are one transmitting and one receiving. The distance between the two smart probes is calculated by detecting the corresponding magnetic field and according to the relevant algorithm.

2. The intelligent probe for DCVG detection and CIPS detection according to claim 1, characterized in that, The probe body (1) is made of carbon fiber.

3. The intelligent probe for DCVG detection and CIPS detection according to claim 1, characterized in that, A collection button fixing plate (6) is provided on one side of the collection button fixing base (5). The outer wall of the collection button fixing plate (6) is fixedly connected to the outer wall of the probe body (1). The outer wall of the collection button fixing base (5) is provided with a first rivet (16). The collection button fixing base (5) is fixedly connected to the outer wall of the collection button fixing base (5) through the first rivet (16). The collection button fixing base (5) is movably provided with a collection switch button (15). The collection switch button (15) is connected to the PCB circuit board (12).

4. The intelligent probe for DCVG detection and CIPS detection according to claim 1, characterized in that, The outer wall of the mounting plate (4) is provided with a second rivet (20). The mounting plate (4) is fixedly connected to the outer wall of the probe body (1) through the second rivet (20). A mounting plug (14) is fixedly inserted on the mounting plate (4). The mounting plug (14) is connected to the PCB circuit board (12).

5. A smart probe for DCVG detection and CIPS detection according to any one of claims 1 to 4, characterized in that, The GPS adapter plate cover (8) has an internal thread (18) on the inner wall of one end near the probe body (1), and an external thread on the outer wall of the probe body (1) away from the electrode fixing copper column (3). The GPS adapter plate cover (8) is threadedly connected to the external thread on the probe body (1) through the internal thread (18).

6. The intelligent probe for DCVG detection and CIPS detection according to claim 5, characterized in that, The GPS adapter plate cover (8) has an annular groove extending to the end of the probe body (1) on its inner wall. The internal thread (18) is located at the bottom of the annular groove. An O-ring (17) and a GPS adapter plate base (7) are provided in the annular groove. The O-ring (17) and the GPS adapter plate base (7) are located between the end of the probe body (1) and the side wall of the annular groove away from the probe body (1). The middle part of the GPS adapter plate base (7) is fixedly connected to the outer wall of the satellite module (13).

7. A smart probe for DCVG detection and CIPS detection according to any one of claims 1 to 4, characterized in that, The outer wall of the PCB circuit board (12) is fixedly connected to an EVA sleeve (10), and the outer wall of the EVA sleeve (10) is fixedly connected to the inner wall of the probe body (1).

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