A self-generating system for pipeline inspection

Abstract

The present application provides a self-generating system for pipeline detection, in which the wheel group rotates along the inner wall of the pipeline by friction, driving the magnet on the wheel group to rotate. The rotation of the magnet causes the generator coil to cut the magnetic lines of force of the magnet, and the magnetic flux in the generator coil changes, thereby generating alternating current in the generator coil. The alternating current generated by the generator coil is introduced into the charging and discharging assembly through the lead-out line, and then the detector is charged by the charging and discharging assembly, so as to realize the spontaneous charging of the detector during the detection in the transportation pipeline of natural gas, oil, etc., and effectively extend the working mileage and continuous working time of the detector. Under the premise of the normal operation of the self-generating system, the detector can be charged in real time, the working time can be extended, and the detection efficiency of the detector is greatly improved. The self-generating system provided by the present application has a simple and reliable structure, and different numbers of self-generating components can be set according to the diameter of the pipeline, thereby improving the economic applicability of the self-generating system.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline detection, and in particular to a self-generating system for pipeline in-line detection. Background Art

[0002] The oil pipelines that transport petroleum and the gas pipelines that transport natural gas are both national pipelines for transporting oil and gas. They are called the national energy arteries and are of great significance for ensuring the national energy supply.

[0003] As pipelines age, various types of defects will appear inside the pipelines due to corrosion and stress. Therefore, it is necessary to conduct effective inspections on the inside of the pipelines regularly to eliminate the defects in the pipelines in time and reduce the occurrence of pipeline rupture accidents.

[0004] At present, detectors are usually used to detect defects inside pipelines. In order to achieve normal operation of the detector, the detector uses a built-in battery to power the detection unit and control system of the detector. Since the power carried by the built-in battery is limited, the detector needs to be maintained after running inside the pipeline for a period of time to replace the built-in battery. After replacing the built-in battery, the next section of the pipeline is inspected internally. Therefore, the built-in battery with limited battery capacity has certain limitations on the detection mileage of the detector, resulting in low detection efficiency. In addition, the cost of the built-in battery used by the detector for detecting internal defects in pipelines is relatively high, so the replacement of a large number of built-in batteries leads to high detection costs. Summary of the invention

[0005] The present invention provides a self-generating system for in-pipeline detection, so as to solve the problem that the existing detector for detecting internal defects of pipelines has low detection efficiency due to frequent replacement of built-in batteries.

[0006] The present invention provides a self-generating system for in-pipeline detection, comprising a power generation cabin body, a charging and discharging assembly located inside the power generation cabin body, and a self-generating assembly and a switch both located outside the power generation cabin body; the charging and discharging assembly is electrically connected to the self-generating assembly and the switch, respectively; the self-generating assembly rotates by friction along the inner wall of the pipeline.

[0007] Preferably, the self-generating component includes a generating coil and a wheel group, and the wheel group is provided with a magnetic steel; the wheel group rotates along the inner wall of the pipeline by friction, and the generating coil cuts the magnetic lines of force of the magnetic steel; the generating coil is electrically connected to the charging and discharging component through a lead wire.

[0008] Preferably, the self-generating component also includes a base arranged outside the power generation cabin body and a support arm movably connected to the base; the power generation coil and the wheel group are provided on the support arm, the wheel group is located at the end of the support arm, and the wheel group rotates on the support arm.

[0009] Preferably, connecting rods are movably provided on both sides of the support arm, and springs are provided on the connecting rods; a limiting member is provided between the connecting rod and the spring; and part of the limiting member is located below the support arm.

[0010] Preferably, the wheel set includes an intermediate steel wheel and secondary wheels located on both sides of the intermediate steel wheel, and the intermediate steel wheel and the secondary wheels rotate coaxially; a plurality of notches are provided on the outer periphery of the secondary wheels, and the magnetic steel is filled inside the notches.

[0011] Preferably, at least two groups of the self-generating components are arranged outside the power generation cabin body.

[0012] Preferably, the charging and discharging assembly includes a battery base and a fixing plate; the battery base is fixedly connected to the fixing plate and the end cover of the power generation cabin body respectively; a battery is arranged between the battery base and the fixing plate; a conversion circuit board is arranged on the fixing plate, and the conversion circuit board is electrically connected to the battery and the self-generating assembly respectively.

[0013] Preferably, a sealing ring is provided between the end cover and the battery base.

[0014] Preferably, both ends of the power generation cabin body are provided with a supporting leather cup and a supporting plate, and the supporting leather cup is located between the power generation cabin body and the supporting plate.

[0015] Preferably, a universal joint is provided at the end of the power generation cabin body, and the universal joint is connected to the detector.

[0016] The technical solution provided by the embodiments of the present invention may have the following beneficial effects:

[0017] In the self-generating system for pipeline detection provided by the present application, when the wheel group rotates along the inner wall of the pipeline by friction, the magnet on the wheel group is driven to rotate. The rotation of the magnet causes the generating coil to cut the magnetic lines of force of the magnet, and the magnetic flux in the generating coil changes, thereby generating alternating current in the generating coil. The alternating current generated by the generating coil is introduced into the charging and discharging component through the lead-out line, and then the detector is charged by the charging and discharging component, so as to realize the spontaneous charging of the detector during the detection in the transportation pipelines such as natural gas and oil, and effectively extend the working mileage and continuous working time of the detector. Under the premise that the self-generating system works normally, the detector can be charged in real time, the working time of the inspector can be extended, and the detection efficiency of the detector is greatly improved. The self-generating system provided by the present application has a simple and reliable structure, and different numbers of self-generating components can be set according to the diameter of the pipeline, thereby improving the economic applicability of the self-generating system.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 A schematic diagram of the structure of a self-generating system for in-pipeline detection provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the structure of a self-generating assembly provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the structure of a wheel set provided by an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the structure of a charge-discharge assembly provided in an embodiment of the present invention;

[0024] Figure 5 A working state diagram of a self-generating system for in-pipeline detection provided by an embodiment of the present invention;

[0025] Symbols represent:

[0026] 01-generator cabin body, 02-charging and discharging components, 03-self-generating components, 04-switch, 05-pipeline;

[0027] 1-generating coil, 2-wheel set, 3-lead wire, 4-base, 5-support arm, 6-connecting rod, 7-spring, 8-limiting piece, 9-battery base, 10-fixing plate, 11-end cover, 12-battery, 13-conversion circuit board, 14-sealing ring, 15-support leather cup, 16-support plate, 17-universal joint, 18-first connecting shaft, 19-second connecting shaft, 20-screw, 21-third connecting shaft, 22-fastener, 23-input charging line, 24-output power supply line, 25-long stud;

[0028] 201-magnetic steel, 202-middle steel wheel, 203-secondary wheel, 204-notch. DETAILED DESCRIPTION

[0029] Please refer to the attached Figure 1 , 5 , attached Figure 1 The structure diagram of the self-generating system for pipeline detection provided by the embodiment of the present application is shown in FIG. Figure 5 The working state diagram of the self-generating system for pipeline detection provided by the embodiment of the present application is shown. Figure 1 , 5It can be seen that the self-generating system for in-pipeline detection provided in the embodiment of the present application includes a power generation cabin body 01, a charging and discharging component 02, a self-generating component 03 and a switch 04. Among them, the charging and discharging component 02 is located inside the power generation cabin body 01, the self-generating component 03 and the switch 04 are both located outside the power generation cabin body 01, and the charging and discharging component 02 is electrically connected to the self-generating component 03 and the switch 04, respectively. The self-generating component 03 can rotate along the inner wall of the pipeline 05 by friction, and then generate current by self-generation. Since the self-generating component 03 is electrically connected to the charging and discharging component 02, the current generated by the self-generating component 03 is transmitted to the charging and discharging component 02 to charge the battery 12 inside the charging and discharging component 02.

[0030] Specifically, the power generation cabin body 01 is a shell component of the self-generating system for in-pipeline detection provided in the embodiment of the present application, which is mainly used to set the charging and discharging component 02, the self-generating component 03 and the switch 04, and is also used to seal and protect the internal charging and discharging component 02. Since the transportation pipelines of natural gas, oil, etc. are round pipes, the power generation cabin body 01 in the embodiment of the present application is cylindrical. In order to prevent natural gas, oil, etc. from entering the interior of the power generation cabin body 01, end covers 11 are provided at both ends of the power generation cabin body 01 to close the power generation cabin body 01 through the end covers 11.

[0031] Furthermore, in order to facilitate the connection of the self-generating system to the detector, the end cover 11 in the embodiment of the present application is a flange end cover, that is, one side of the end cover 11 seals the power generation cabin body 01, and the other side is a flange structure. A universal joint 17 is provided on the outside of the end cover 11 of the power generation cabin body 01, and the end cover 11 is connected to the detector via the universal joint 17 provided on the flange. Support leather cups 15 and support plates 16 are provided on both end flanges of the power generation cabin body 01, and the support leather cup 15 is located between the support plate 16 and the power generation cabin body 01. The provision of the support leather cup 15 and the support plate 16 can support the power generation cabin body 01, thereby facilitating the self-generating system and the detector to run in the pipeline 05 in the direction of the arrow, as shown in the attached figure. Figure 5 shown.

[0032] The switch 04 is a device for controlling the movement of the self-generating system for in-pipeline detection provided in the embodiment of the present application in the pipeline 05. To ensure the normal operation of the self-generating system, the switch 04 is activated before the self-generating system and the detector enter the pipeline 05. Of course, to achieve automatic control, the switch 04 can also be activated by triggering a pressure sensor.

[0033] The self-generating assembly 03 is arranged outside the generating chamber body 01. In order to reduce the volume of the self-generating system and reasonably utilize the space, the self-generating assembly 03 is fixedly arranged near the end cover 11 of the generating chamber body 01. Figure 2 , attached Figure 2 The structure diagram of the self-generating assembly provided by the embodiment of the present application is shown. Figure 2 It can be seen that the self-generating component 03 in the embodiment of the present application includes a generating coil 1 and a wheel group 2, and the wheel group 2 can rotate along the inner wall of the pipeline 05 by friction. A magnetic steel 201 is provided on the wheel group 2, and the generating coil 1 cuts the magnetic lines of force of the magnetic steel 201. When the wheel group 2 rotates along the inner wall of the pipeline 05 by friction, the magnetic steel 201 on the wheel group 2 is driven to rotate. The rotation of the magnetic steel 201 causes the generating coil 1 to cut the magnetic lines of force of the magnetic steel 201, and the magnetic flux in the generating coil 1 changes, thereby generating alternating current in the generating coil 1. Since the generating coil 1 is electrically connected to the charging and discharging component 02 through the lead wire 3, the alternating current generated in the generating coil 1 enters the charging and discharging component 02 through the lead wire 3, realizing the spontaneous charging of the detector during the detection in the transportation pipeline such as natural gas and oil. Therefore, under the premise that the self-generating system provided in the embodiment of the present application works normally, the detector can be charged in real time, the working time of the detector is extended, and the detection efficiency of the detector is greatly improved.

[0034] In order to facilitate the arrangement of the power generation coil 1 and the wheel set 2 outside the power generation cabin body 01, the self-generating assembly 03 also includes a base 4 fixedly arranged outside the power generation cabin body 01 and a support arm 5 movably connected to the base 4. In order to realize the movable connection between the base 4 and the support arm 5, the base 4 and the support arm 5 are axially connected through the first connecting shaft 18. More specifically, the base 4 is axially connected to the end of the support arm 5 through the first connecting shaft 18, so that the support arm 5 can rotate around the first connecting shaft 18, thereby realizing the rotation of the wheel set 2 along the longitudinal section direction of the power generation cabin body 01. The longitudinal section of the power generation cabin body 01 is the cross section of the pipeline 05.

[0035] The arm 5 is provided with a generator coil 1 and a wheel set 2, and the generator coil 1 is located between the arm 5 and the wheel set 2. The generator coil 1 is fixedly arranged on the arm 5 by means of screws, bolts, etc. The wheel set 2 is located at the end of the arm 5, and the wheel set 2 is arranged on the arm 5 through the second connecting shaft 19, so that the wheel set 2 can rotate around the second connecting shaft 19 on the arm 5, thereby realizing the friction rotation between the wheel set 2 and the inside of the pipe 05.

[0036] Further, the wheel set 2 provided in the embodiment of the present application includes an intermediate steel wheel 202 and auxiliary wheels 203 located on both sides of the intermediate steel wheel 202, as shown in the attached Figure 3As shown. The intermediate steel wheel 202 and the two secondary wheels 203 are connected by a second connecting shaft 19, and then set on the support arm 5. In order to realize the coaxial circumferential rotation of the intermediate steel wheel 202 and the two secondary wheels 203, the intermediate steel wheel 202 and the two secondary wheels 203 are fixedly connected by screws 20. In the embodiment of the present application, a plurality of notches 204 are provided on the outer periphery of the secondary wheels 203, and the notches 204 are filled with magnetic steel 201. Therefore, when the intermediate steel wheel 202 rotates by contact and friction on the inner wall of the pipe 05, the intermediate steel wheel 202 can drive the two secondary wheels 203 to rotate, and then drive the magnetic steel 201 on the secondary wheels 203 to rotate, so that the generating coil 1 cuts the magnetic lines of force of the magnetic steel 201, and finally realizes self-generation.

[0037] Furthermore, in order to enhance the structural stability of the generating coil 1 and the wheel set 2 on the support arm 5, the support arm 5 in the embodiment of the present application is attached. Figure 2 The symmetrical arm shown in FIG. When the arm 5 is a symmetrical arm, one end of the symmetrical arm is movably connected to both sides of the base 4 through the first connecting shaft 18, and the other end of the symmetrical arm is provided with a wheel set 2 through the second connecting shaft 19. At this time, the wheel set 2 is located in the middle of the symmetrical arm, which greatly reduces the space occupied by the wheel set 2. When the arm 5 is a symmetrical arm, the power generation coil 1 is located on the inner side of the symmetrical arm, and two groups of power generation coils 1 can be symmetrically arranged, and each group of power generation coils 1 can generate electricity through electromagnetic induction with the magnetic steel 201 on the secondary wheel 203, thereby improving the power generation efficiency of the self-generating component 03.

[0038] During the transportation of natural gas, oil, etc., the pipeline 05 may have turns, diameter changes or pipe body deformation. In order to enable the self-generating system provided in the embodiment of the present application to be applicable to turns, diameter changes or pipe body deformation, the self-generating component 03 also includes components such as connecting rods 6 and springs 7.

[0039] Specifically, connecting rods 6 are movably provided on both sides of the support arm 5, and the connecting rods 6 are movably provided on the support arm 5 through the third connecting shaft 21. Therefore, when the position of the connecting rod 6 is fixed, the support arm 5 can rotate relative to the connecting rod 6 around the third connecting shaft 21. A spring 7 is provided on the connecting rod 6, and a stopper 8 is provided between the connecting rod 6 and the spring 7. One end of the spring 7 is limited in position by the stopper 8, and the other end of the spring 7 is fixed in position by the fastener 22, so that the spring 7 is elastically deformed between the stopper 8 and the nut. The fastener 22 in the embodiment of the present application can be a tightening component such as a nut or a fixing ring. Since the end of the spring 7 is fixed by the fastener 22, when the spring 7 is elastically deformed, the spring 7 can drive the stopper 8 to slide freely on the connecting rod 6. Part of the stopper 8 is located below the support arm 5. When the spring 7 is elastically deformed, due to the obstruction of the support arm 5, the spring 7 will drive the stopper 8 to slide freely between the support arm 5 and the fastener 22. Since the support arm 5 can rotate around the third connecting axis 21 and the first connecting axis 18, when the spring 7 drives the limit member 8 to slide between the support arm 5 and the fastener 22, the support arm 5 will move closer to or away from the connecting rod 6, so that the wheel group 2 can adapt to the diameter change of the pipeline 05, and then the self-generating system can provide normal power generation for pipelines 05 of different diameters.

[0040] For example, when the detector and the self-generating system provided by the embodiment of the present application pass through a pipe 05 that is turned, has a reduced diameter, or has a deformed pipe body, the reduced diameter of the pipe 05 forces the wheel set 2 to approach the power generation cabin body 01. At this time, the arm 5 squeezes the limiter 8, thereby causing the limiter 8 to move toward the fastener 22, and the spring 7 contracts. When the detector and the self-generating system provided by the embodiment of the present application pass through a pipe 05 with an increased diameter, the wheel set 2 has enough space in the pipe 05 due to the increased diameter of the pipe 05. At this time, the spring 7 expands under the action of the elastic force, thereby causing the limiter 8 to move in a direction away from the fastener 22. The movement of the limiter 8 pushes the arm 5 to lift, thereby causing the wheel set 2 to approach the direction away from the power generation cabin body 01 and get close to the pipe 05.

[0041] In the embodiment of the present application, the stopper 8 can be a baffle or nut having a size larger than that of the connecting rod 6, and the baffle or nut should be located below the support arm 5. In addition, the stopper 8 can also be a baffle movably arranged on the base 4, and the connecting rod 6 passes through the baffle. In this case, the baffle is also located below the support arm 5. The embodiment of the present application does not limit the specific shape and structure of the stopper 8, as long as it can slide on the connecting rod 6 and push the support arm 5.

[0042] Furthermore, in order to improve the power generation effect and power generation of the self-generating system, at least two groups of self-generating components 03 are provided outside the power generation cabin body 01 according to the diameter of the pipeline 05 and the diameter of the detector, as shown in the attached Figure 5 shown.

[0043] In the self-generating system provided in the embodiment of the present application, the charging and discharging assembly 02 is located inside the generating chamber body 01 and is used to convert and store electrical energy and provide electrical energy to the switch 04 and the detector. Figure 4 , attached Figure 4 The schematic diagram of the structure of the charging and discharging assembly provided in the embodiment of the present application is shown. Figure 4 As shown, the charging and discharging assembly 02 in the embodiment of the present application includes a battery base 9 and a fixing plate 10, wherein the battery base 9 is fixedly connected to the fixing plate 10 and the end cover 11 of the power generation cabin body 01, respectively, so as to realize the connection between the charging and discharging assembly 02 and the power generation cabin body 01. A battery 12 is provided between the battery base 9 and the fixing plate 10, and the battery 12 is used to store electrical energy. A conversion circuit board 13 is provided on the fixing plate 10, and the conversion circuit board 13 is electrically connected to the battery 12 and the self-generating assembly 03, respectively. As a result, the alternating current generated by the self-generating assembly 03 enters the conversion circuit board 13, and the conversion circuit board 13 converts the alternating current and stores it in the battery 12.

[0044] In order to realize the connection between the conversion circuit board 13 and the self-generating component 03, an input charging line 23 is also provided on the conversion circuit board 13, and the input charging line 23 is connected to the lead-out line 3 on the generating coil 1 through a plug. Thus, the alternating current generated by the generating coil 1 enters the conversion circuit board 13 through the lead-out line 3 and the input charging line 23, and enters the battery 12 after conversion.

[0045] Furthermore, in order to enable the charging and discharging assembly 02 to charge the detector component, an output power line 24 is also provided on the conversion circuit board 13. The output power line 24 is led out to the outside of the generator compartment body 01 through the waterproof and pressure-resistant connector on the end cover 11, and then connected to the detector component to provide electrical energy.

[0046] In the embodiment of the present application, in order to improve the connection strength between the battery base 9, the fixing plate 10 and the conversion circuit board 13, the battery base 9, the fixing plate 10 and the conversion circuit board 13 are fixedly connected by several long studs 25, and fixedly connected to the end cover 11 of the generator cabin body 01. In order to improve the sealing between the battery base 9 and the end cover 11, a sealing ring 14 is provided between the battery base 9 and the end cover 11.

[0047] In the self-generating system for pipeline detection provided by the embodiment of the present application, when the wheel group 2 rotates along the inner wall of the pipeline 05 by friction, the magnetic steel 201 on the wheel group 2 is driven to rotate. The rotation of the magnetic steel 201 causes the generating coil 1 to cut the magnetic lines of force of the magnetic steel 201, and the magnetic flux in the generating coil 1 changes, thereby generating alternating current in the generating coil 1. The alternating current generated by the generating coil 1 is introduced into the charging and discharging component 02 through the lead-out line 3, and then the detector is charged by the charging and discharging component 02, so as to realize the spontaneous charging of the detector during the detection in the transportation pipeline such as natural gas and oil, and effectively extend the working mileage and continuous working time of the detector. Under the premise that the self-generating system works normally, the detector can be charged in real time, extend the working time of the detector, and greatly improve the detection efficiency of the detector. The self-generating system provided by the embodiment of the present application has a simple and reliable structure, and can set different numbers of self-generating components 03 according to the diameter of the pipeline 05, thereby improving the economic applicability of the self-generating system.

[0048] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the disclosure of the invention herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0049] It should be understood that relational terms such as "first" and "second" are used only 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. The present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A self-generating system for pipeline detection, characterized in that: The invention comprises a power generation cabin body (01), a charging and discharging assembly (02) located inside the power generation cabin body (01), and a self-generating assembly (03) and a switch (04) both located outside the power generation cabin body (01); the charging and discharging assembly (02) is electrically connected to the self-generating assembly (03) and the switch (04) respectively; the self-generating assembly (03) rotates by friction along the inner wall of a pipeline (05); The self-generating component (03) comprises a generating coil (1) and a wheel group (2), wherein the wheel group (2) is provided with a magnetic steel (201); the wheel group (2) rotates along the inner wall of the pipeline (05) by friction, and the generating coil (1) cuts the magnetic lines of force of the magnetic steel (201); the generating coil (1) is electrically connected to the charging and discharging component (02) via a lead wire (3); The self-generating assembly (03) further comprises a base (4) arranged outside the generating chamber body (01) and a support arm (5) movably connected to the base (4); the generating coil (1) and the wheel set (2) are arranged on the support arm (5); the wheel set (2) is located at the end of the support arm (5), and the wheel set (2) rotates on the support arm (5); Connecting rods (6) are movably provided on both sides of the support arm (5), and a spring (7) is provided on the connecting rod (6); a limiting member (8) is provided between the connecting rod (6) and the spring (7); a part of the limiting member (8) is located below the support arm (5); The wheel set (2) comprises an intermediate steel wheel (202) and secondary wheels (203) located on both sides of the intermediate steel wheel (202), wherein the intermediate steel wheel (202) and the secondary wheels (203) rotate coaxially; a plurality of notches (204) are provided on the outer periphery of the secondary wheels (203), and the magnetic steel (201) is filled inside the notches (204).

2. The self-generating system for in-pipeline detection according to claim 1, characterized in that: At least two groups of the self-generating components (03) are arranged outside the power generation cabin body (01).

3. The self-generating system for in-pipeline detection according to claim 1, characterized in that: The charging and discharging assembly (02) comprises a battery base (9) and a fixing plate (10); the battery base (9) is fixedly connected to the fixing plate (10) and the end cover (11) of the power generation cabin body (01) respectively; a battery (12) is provided between the battery base (9) and the fixing plate (10); a conversion circuit board (13) is provided on the fixing plate (10), and the conversion circuit board (13) is electrically connected to the battery (12) and the self-generating assembly (03) respectively.

4. The self-generating system for in-pipeline detection according to claim 3 is characterized in that: A sealing ring (14) is provided between the end cover (11) and the battery base (9).

5. The self-generating system for in-pipeline detection according to any one of claims 1 to 4, characterized in that: Both ends of the power generation cabin body (01) are provided with a supporting leather cup (15) and a supporting plate (16), and the supporting leather cup (15) is located between the power generation cabin body (01) and the supporting plate (16).

6. The self-generating system for in-pipeline detection according to any one of claims 1 to 4, characterized in that: A universal joint (17) is provided at the end of the power generation cabin body (01), and the universal joint (17) is connected to the detector.

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