Image data acquisition device based on infrared thermography

Abstract

The application discloses an image data acquisition device based on infrared thermal imaging, which comprises a cylindrical main body mechanism, a pipeline walking mechanism, an image acquisition mechanism and a spraying mechanism. The cylindrical main body mechanism comprises a cylinder body, front and rear end covers are respectively arranged at two ends of the cylinder body, and an installation plate is fixedly connected to the inside of the cylinder body. The spraying mechanism is installed on the cylinder body and is used for telescopic rotary spraying of a tracer. In the application, the pipeline walking mechanism driving device moves in close contact with the inner wall of the pipeline, the image acquisition mechanism realizes double acquisition of infrared and visible images in the pipeline, the spraying mechanism drives the inner threaded pipe to rotate through a driving motor, a first gear and a second gear, so that the annular shell is telescopic, the water pump sends the tracer to the three-pronged spray head of the annular shell, the automatic rotary circumferential uniform spraying is realized by utilizing the tangential reaction force, and the defect marking effect and detection recognition degree are improved.

Description

Technical Field

[0001] This application relates to the field of pipeline image detection technology, and more specifically, to an image data acquisition device based on infrared thermal imaging. Background Technology

[0002] As the core transport carrier in municipal water supply and drainage systems, pipelines are prone to early defects such as micro-cracks, minor leaks, and localized corrosion perforations during long-term service. These defects are characterized by their small size, high concealment, and rapid development, and are the main causes of pipeline leaks, media loss, and even safety accidents. Traditional pipeline inspection methods often employ manual endoscopy and visual robots, which can only observe visible defects on the pipeline surface and cannot achieve comprehensive, intuitive visualization of the entire inner wall of the pipeline.

[0003] With the development of infrared thermal imaging technology, it has been used for pipeline defect detection due to its advantages of non-contact and rapid identification of temperature anomalies. However, there are obvious technical shortcomings in infrared identification and subsequent tracking of minor leaks. First, the infrared signal of minor leaks is weak and easily interfered with. The temperature difference of minor leaks in pipelines is small, and the temperature difference between the leaking medium and the pipeline wall is not significant. Infrared thermal imagers are easily affected by the ambient temperature and reflection of the pipeline, making it difficult to clearly capture the weak thermal signal corresponding to minor leaks. This leads to a high rate of missed detection and false detection of minor defects. Second, single image acquisition cannot accurately locate the defect. Most existing equipment only uses infrared imaging or visible image acquisition, which cannot match infrared temperature anomalies with visible light appearance defects. Even if an anomaly is detected, it is difficult to confirm the location of the minor defect. Summary of the Invention

[0004] The purpose of this application is to provide an image data acquisition device based on infrared thermal imaging to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: an image data acquisition device based on infrared thermal imaging, comprising: a cylindrical main body mechanism, a pipe traveling mechanism, an image acquisition mechanism, and a spraying mechanism; The cylindrical main body includes a cylindrical body, with a front end cap and a rear end cap installed at both ends of the cylindrical body, and an installation plate fixedly connected inside the cylindrical body. The pipe traveling mechanism is installed on the outer wall of the cylinder, and the pipe traveling mechanism is used to drive the cylindrical main body to move inside the pipe; The image acquisition mechanism is installed on the front end cover and is used to acquire image data inside the pipe. The spraying mechanism is mounted on the cylinder and is used for telescopically rotating and spraying the tracer.

[0006] Preferably, the pipeline traveling mechanism includes three linear grooves symmetrically arranged on the outer wall of the cylinder. A first connecting rod is hinged to the outer wall of each end of the linear groove. A traveling wheel is rotatably mounted on the end of each first connecting rod. A micro motor is provided on one side of one of the first connecting rods, and the rotating shaft of the micro motor is fixed to its corresponding traveling wheel. A bidirectional lead screw motor is installed inside the linear groove. Both ends of the bidirectional lead screw motor are rotatably mounted on the inner walls of both ends of the linear groove. A first slider is threaded onto the lead screw of the bidirectional lead screw motor. A second connecting rod is hinged to the top of the first slider, and the end of the second connecting rod is hinged to one side of the first connecting rod.

[0007] Preferably, the spraying mechanism includes an internally threaded tube rotatably mounted on the front surface of the front end cover. An externally threaded tube is threadedly connected to the inner wall of the internally threaded tube. An annular housing is rotatably mounted at one end of the externally threaded tube. Three-pronged spray nozzles are distributed circumferentially on the outer wall of the annular housing. A square second slider is mounted at the end of the externally threaded tube away from the annular housing. The interior of the second slider has a through hole. A rotary pipe joint is mounted on one side of the second slider. A liquid storage tank and a water pump are mounted on the mounting plate. The outlet of the water pump is connected to the interior of the rotary pipe joint through a pipe body, and the inlet of the water pump is connected to the interior of the liquid storage tank through a pipe body.

[0008] Preferably, the image acquisition mechanism includes an infrared thermal imager, which is mounted on the outside of the front cover. A CMOS camera is mounted on the front surface of the front cover, and an illumination lamp is mounted on the front surface of the front cover. A controller is mounted on the top of the mounting plate, and the controller is electrically connected to the CMOS camera, the illumination lamp, and the infrared thermal imager.

[0009] Preferably, a power supply module is mounted on the top of the mounting plate, and the power supply module is electrically connected to the controller.

[0010] Preferably, the top of the liquid storage tank is connected to a replenishment pipe, and one end of the replenishment pipe penetrates the inner wall of the cylinder.

[0011] Preferably, the spraying mechanism further includes a drive motor, the rotation shaft of which passes through the front end cover and is fixedly connected to a second gear. A first gear is fixedly connected to the outer wall of the internally threaded tube, and the first gear meshes with the second gear. A square tube is fixedly connected to the inner wall of the front end cover, and the second slider is slidably mounted on the inner wall of the square tube.

[0012] Preferably, a shield is fixedly connected to the front surface of the front end cover, and the first gear, the second gear, and the internal threaded tube are all located inside the shield.

[0013] Preferably, the inner wall of the cylinder is fixedly connected with reinforcing ribs, and the reinforcing ribs are annular.

[0014] Preferably, the pipe body located at the water pump outlet is a telescopic corrugated pipe.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: In this application, the pipeline walking mechanism drive device moves in close contact with the inner wall of the pipeline, the image acquisition mechanism realizes dual acquisition of infrared and visible images inside the pipeline, the spraying mechanism drives the internal threaded pipe to rotate through the drive motor, the first gear and the second gear, causing the annular shell to extend and retract, the water pump delivers the tracer to the three-pronged nozzle of the annular shell, and uses the tangential reaction force to achieve automatic rotation and uniform circumferential spraying, improving the defect marking effect and detection identification. The telescopic and rotating spraying design enables the tracer to uniformly cover the inner wall of the pipeline, which is convenient for subsequent positioning and tracking of detected defects and improves the efficiency of subsequent processing of pipeline inspection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an image data acquisition device based on infrared thermal imaging according to an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of an image data acquisition device based on infrared thermal imaging according to an embodiment of this application; Figure 3 This is a schematic diagram of the internal structure of an image data acquisition device based on infrared thermal imaging according to an embodiment of this application from another perspective. Figure 4 Examples of this application Figure 3 A magnified structural diagram of part A in the middle; Figure 5 This is a cross-sectional structural diagram of the image data acquisition device based on infrared thermal imaging according to an embodiment of this application; Figure 6 Examples of this application Figure 5 A magnified structural diagram of part A in the middle.

[0017] In the picture: 1. Cylindrical main body structure; 101. Cylindrical body; 102. Rear end cover; 103. Front end cover; 104. Shield; 105. Mounting plate; 106. Reinforcing rib; 2. Pipeline traveling mechanism; 201. Traveling wheel; 202. Linear groove; 203. Bidirectional lead screw motor; 204. Micro motor; 205. First slider; 206. First connecting rod; 207. Second connecting rod; 3. Image acquisition mechanism; 301. Infrared thermal imager; 302. CMOS camera; 303. Illumination lamp; 304. Controller; 305. Power supply module; 4. Spraying mechanism; 401. Annular housing; 402. Externally threaded pipe; 403. Internally threaded pipe; 404. Three-pronged spray nozzle; 405. First gear; 406. Second gear; 407. Liquid storage tank; 408. Liquid replenishment pipe; 409. Square tube; 410. Water pump; 411. Drive motor; 412. Second slider; 413. Rotary pipe joint. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] Please see Figure 1 The embodiments of this application provide an image data acquisition device based on infrared thermal imaging, including: a cylindrical main body mechanism 1, a pipe traveling mechanism 2, an image acquisition mechanism 3, and a spraying mechanism 4.

[0020] The cylindrical main body 1 includes a cylindrical body 101. A front end cover 103 and a rear end cover 102 are respectively installed at both ends of the cylindrical body 101. An installation plate 105 is fixedly connected inside the cylindrical body 101. The front end cover 103 and the rear end cover 102 are installed at both ends of the cylindrical body 101 to close both ends of the cylindrical body 101. The installation plate 105 is used to support components such as the controller 304, the power supply module 305, the liquid storage tank 407 of the spraying mechanism 4, and the water pump 410.

[0021] Furthermore, the inner wall of the cylinder 101 is fixedly connected with reinforcing ribs 106. The reinforcing ribs 106 are annular and are uniformly reinforced along the circumference of the inner wall of the cylinder 101, thereby improving the structural strength and resistance to compression and deformation of the cylinder 101.

[0022] like Figures 1-3 As shown, the pipe traveling mechanism 2 is installed on the outer wall of the cylinder 101. The pipe traveling mechanism 2 includes three linear grooves 202 symmetrically arranged on the outer wall of the cylinder 101. The outer walls of both ends of the linear grooves 202 are hinged with first connecting rods 206. The ends of the first connecting rods 206 are rotatably mounted with traveling wheels 201. One side of one of the first connecting rods 206 is provided with a micro motor 204. The rotation shaft of the micro motor 204 is fixed to its corresponding traveling wheel 201. A bidirectional lead screw motor 203 is installed inside the linear grooves 202. The lead screws at both ends of the bidirectional lead screw motor 203 are rotatably mounted on the inner walls of both ends of the linear grooves 202. The lead screws of the bidirectional lead screw motor 203 are threadedly connected to a first slider 205. The top of the first slider 205 is hinged with a second connecting rod 207. The end of the second connecting rod 207 is hinged to one side of the first connecting rod 206.

[0023] When the pipeline traveling mechanism 2 is in use, the bidirectional screw motor 203 in the three symmetrically arranged linear grooves 202 on the outer wall of the cylinder 101 is started, which can drive the first slider 205 on the screw at both ends to move. Through the second connecting rod 207, the first connecting rod 206 hinged at both ends of the linear groove 202 is pushed to open and close, adjusting the fit between the traveling wheel 201 and the inner wall of the pipeline. The micro motor 204 drives the corresponding traveling wheel 201 to rotate, driving the entire device to move along the pipeline and flexibly adapt to pipelines of different diameters to travel smoothly.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 5 As shown, the image acquisition mechanism 3 is mounted on the front cover 103. The image acquisition mechanism 3 includes an infrared thermal imager 301, which is mounted on the outside of the front cover 103. A CMOS camera 302 is mounted on the front surface of the front cover 103, and an illumination lamp 303 is mounted on the front surface of the front cover 103. A controller 304 is mounted on the top of the mounting plate 105. The controller 304 is electrically connected to the CMOS camera 302, the illumination lamp 303, and the infrared thermal imager 301. A power supply module 305 is mounted on the top of the mounting plate 105, and the power supply module 305 is electrically connected to the controller 304.

[0025] Image acquisition mechanism 3 is responsible for data acquisition. Among them, infrared thermal imager 301 installed on the outside of front cover 103 acquires infrared thermal imaging data inside the pipe, CMOS camera 302 on the front surface of front cover 103 acquires visible light images, lighting lamp 303 provides lighting assistance, controller 304 receives and processes the two types of image data, power supply module 305 supplies power to each electrical component, and dual acquisition mode of infrared and visible light images captures temperature anomalies and appearance defects inside the pipe, while lighting lamp 303 solves the problem of dim light inside the pipe.

[0026] Among them, such as Figures 1-6 As shown, the spraying mechanism 4 is installed on the cylinder 101. The spraying mechanism 4 includes an internally threaded tube 403, which is rotatably installed on the front surface of the front end cover 103. An externally threaded tube 402 is threadedly connected to the inner wall of the internally threaded tube 403. An annular shell 401 is rotatably installed at one end of the externally threaded tube 402. Three-pronged spray nozzles 404 are distributed equidistantly on the outer wall of the annular shell 401. A square second slider 412 is installed at the end of the externally threaded tube 402 away from the annular shell 401. The second slider 412 has a through hole inside. A rotary pipe joint 413 is installed on one side of the second slider 412. A liquid storage tank 407 and a water pump 410 are installed on the mounting plate 105. The outlet of the water pump 410 is connected to the inside of the rotary pipe joint 413 through a pipe body. The inlet of the water pump 410 is connected to the inside of the liquid storage tank 407 through a pipe body.

[0027] When the spraying mechanism 4 is in use, the drive motor 411 drives the second gear 406 to rotate, which in turn drives the internal threaded tube 403 to rotate by meshing with the first gear 405. This causes the external threaded tube 402, which is connected to the inner threaded wall, to extend and retract along the square tube 409. The square tube 409 can limit and guide the movement of the second slider 412. The water pump 410 sends the tracer in the storage tank 407 into the external threaded tube 402 through the rotary pipe joint 413. Finally, the coating is sprayed through the three-pronged nozzle 404 on the outer wall of the annular housing 401. The three-pronged nozzle 404 generates a tangential spray reaction force during the spraying process. This reaction force is distributed along the circumferential tangential direction of the annular shell 401, forming a continuous rotational torque. At the same time, the annular shell 401 and the external threaded pipe 402 are rotatably mounted together, so that under the drive of the spray reaction torque, the three-pronged nozzle 404 and the annular shell 401 automatically rotate around the axis of the external threaded pipe 402, so that the tracer is uniformly sprayed circumferentially on the inner wall of the pipe, improving the defect marking effect and detection recognition.

[0028] It should be noted that the tracer used in the spraying mechanism 4 of this application is usually a non-toxic and harmless tracer that enhances infrared contrast. It includes a tracer composed of food-grade titanium dioxide, food-grade CMC, and purified water. After the tracer is sprayed onto the inner wall of the pipe, the inner wall will turn white evenly, the infrared sensing brightness will be higher, and the leakage point will be easier to expose the background color, so that the infrared thermal imager 301 can collect black spots and black lines. The tracer in this application also includes a tracer mixed with purified water and a small amount of food-grade glycerin. When the leakage point seeps water, it will wash away the glycerin film, and obvious dark spots will appear under infrared light.

[0029] Furthermore, the top of the liquid storage tank 407 is connected to a replenishment pipe 408. One end of the replenishment pipe 408 penetrates the inner wall of the cylinder 101. The replenishment pipe 408 penetrates the inner wall of the cylinder 101 and connects to the liquid storage tank 407. The tracer can be replenished directly from the outside of the cylinder 101 to the liquid storage tank 407 without disassembling the device. In addition, the pipe located at the outlet of the water pump 410 is a telescopic corrugated pipe. The telescopic corrugated pipe has flexible telescopic characteristics and can be stretched or shortened with the axial extension and contraction of the external threaded pipe 402.

[0030] In another embodiment, such as Figure 2 and Figure 6As shown, the spraying mechanism 4 also includes a drive motor 411. The rotating shaft of the drive motor 411 passes through the front end cover 103 and is fixedly connected to a second gear 406. A first gear 405 is fixedly connected to the outer wall of the internally threaded tube 403. The first gear 405 meshes with the second gear 406. A square tube 409 is fixedly connected to the inner wall of the front end cover 103. A second slider 412 is slidably installed on the inner wall of the square tube 409. The drive motor 411 drives the second gear 406 to rotate. Through meshing with the first gear 405, the internally threaded tube 403 is driven to rotate smoothly, providing power for the extension and retraction of the externally threaded tube 402. The square tube 409 plays a linear guiding and anti-rotation limiting role for the second slider 412, so that the externally threaded tube 402 only moves axially in a linear manner and does not rotate synchronously with the internally threaded tube 403, ensuring stable extension and retraction and facilitating changes in the spraying distance of the tracer.

[0031] like Figure 1 and Figure 6 As shown, a shield 104 is fixedly connected to the front surface of the front cover 103. The first gear 405, the second gear 406 and the internal threaded tube 403 are all located inside the shield 104. The shield 104 encloses and protects the first gear 405, the second gear 406 and the internal threaded tube 403.

[0032] Based on the above technical solution, the working steps of this solution are summarized as follows: In this application, the front end cover 103 and the rear end cover 102 are installed at both ends of the cylinder 101, and the internal fixed mounting plate 105 is used to support the controller 304, the power supply module 305, and the liquid storage tank 407 and water pump 410 of the spraying mechanism 4.

[0033] The pipeline traveling mechanism 2 includes three symmetrically arranged linear grooves 202 on the outer wall of the cylinder 101, and a bidirectional lead screw motor 203 inside the linear grooves 202. After the bidirectional lead screw motor 203 is started, it can drive the first slider 205 on the lead screw at both ends to move. Through the second connecting rod 207, it pushes the first connecting rod 206 hinged at both ends of the linear groove 202 to open and close, adjusting the fit between the traveling wheel 201 and the inner wall of the pipeline. The micro motor 204 drives the corresponding traveling wheel 201 to rotate, driving the entire device to move along the pipeline. This mechanism can flexibly adapt to pipelines of different diameters, travel smoothly and with sufficient power, ensuring that the device can move at a constant speed in the pipeline, providing a stable guarantee for image acquisition and spraying operations.

[0034] Image acquisition mechanism 3 is responsible for data acquisition. Among them, infrared thermal imager 301 installed on the outside of front cover 103 acquires infrared thermal imaging data inside the pipe, CMOS camera 302 on the front surface of front cover 103 acquires visible light images, lighting lamp 303 provides lighting assistance, controller 304 receives and processes the two types of image data, power supply module 305 supplies power to each electrical component, and dual acquisition mode of infrared and visible light images captures temperature anomalies and appearance defects inside the pipe. Lighting lamp 303 solves the problem of dim light inside the pipe and improves the clarity and accuracy of image acquisition.

[0035] The spraying mechanism 4 sprays the tracer. The drive motor 411 drives the second gear 406 to rotate, which in turn drives the internal threaded tube 403 to rotate by meshing with the first gear 405. This causes the external threaded tube 402, which is connected to the inner threaded wall, to extend and retract along the square tube 409. The square tube 409 can limit and guide the movement of the second slider 412. The water pump 410 sends the tracer in the storage tank 407 into the external threaded tube 402 through the rotary pipe joint 413. Finally, the tracer is sprayed through the three-pronged nozzle 404 on the outer wall of the annular shell 401. The three-pronged nozzle 404 generates a tangential jet reaction force during the spraying process. The reaction force is distributed along the circumferential tangent of the annular shell 401, forming a continuous rotational torque. At the same time, the annular shell 401 and the external threaded pipe 402 are rotatably installed together, so that under the drive of the spray reaction torque, the three-pronged nozzle 404 and the annular shell 401 automatically rotate around the axis of the external threaded pipe 402, so that the tracer is uniformly sprayed circumferentially on the inner wall of the pipe, improving the defect marking effect and detection identification. The telescopic and rotating spraying design enables the tracer to uniformly cover the inner wall of the pipe, which is convenient for subsequent location and tracking of detected defects and improves the efficiency of subsequent processing of pipeline inspection.

[0036] All parts not covered in this application are the same as or can be implemented using existing technology. Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An image data acquisition device based on infrared thermal imaging, characterized in that, include: The cylindrical main body (1), the pipeline walking mechanism (2), the image acquisition mechanism (3), and the spraying mechanism (4) are all included. The cylindrical main body (1) includes a cylindrical body (101), with a front end cap (103) and a rear end cap (102) installed at both ends of the cylindrical body (101), and an installation plate (105) fixedly connected inside the cylindrical body (101). The pipe walking mechanism (2) is installed on the outer wall of the cylinder (101), and the pipe walking mechanism (2) is used to drive the cylindrical main body mechanism (1) to move inside the pipe; The image acquisition mechanism (3) is installed on the front cover (103), and the image acquisition mechanism (3) is used to acquire image data inside the pipe; The spraying mechanism (4) is mounted on the cylinder (101) and is used to spray the tracer by telescopic rotation.

2. The image data acquisition device based on infrared thermal imaging according to claim 1, characterized in that: The pipeline traveling mechanism (2) includes three linear grooves (202) symmetrically arranged on the outer wall of the cylinder (101). The outer walls of both ends of the linear grooves (202) are hinged with first connecting rods (206). The ends of the first connecting rods (206) are rotatably mounted with traveling wheels (201). One side of one of the first connecting rods (206) is provided with a micro motor (204). The rotation shaft of the micro motor (204) is fixed to its corresponding traveling wheel (201). The inside of the linear grooves (202) is equipped with a bidirectional screw motor (203). The two ends of the bidirectional screw motor (203) are rotatably mounted on the inner walls of both ends of the linear grooves (202). The screw of the bidirectional screw motor (203) is threadedly connected to a first slider (205). The top of the first slider (205) is hinged with a second connecting rod (207). The end of the second connecting rod (207) is hinged to one side of the first connecting rod (206).

3. The image data acquisition device based on infrared thermal imaging according to claim 1, characterized in that: The spraying mechanism (4) includes an internally threaded tube (403), which is rotatably mounted on the front surface of the front end cover (103). An externally threaded tube (402) is threadedly connected to the inner wall of the internally threaded tube (403). An annular housing (401) is rotatably mounted at one end of the externally threaded tube (402). Three-pronged spray nozzles (404) are distributed equidistantly around the outer wall of the annular housing (401). The externally threaded tube (402) is located away from the annular housing (401). A square second slider (412) is installed at one end. The second slider (412) has a through hole inside. A rotary pipe joint (413) is installed on one side of the second slider (412). A liquid storage tank (407) and a water pump (410) are installed on the mounting plate (105). The outlet of the water pump (410) is connected to the inside of the rotary pipe joint (413) through a pipe body. The inlet of the water pump (410) is connected to the inside of the liquid storage tank (407) through a pipe body.

4. The image data acquisition device based on infrared thermal imaging according to claim 1, characterized in that: The image acquisition mechanism (3) includes an infrared thermal imager (301), which is mounted on the outside of the front cover (103). A CMOS camera (302) is mounted on the front surface of the front cover (103), and an illumination lamp (303) is mounted on the front surface of the front cover (103). A controller (304) is mounted on the top of the mounting plate (105), and the controller (304) is electrically connected to the CMOS camera (302), the illumination lamp (303), and the infrared thermal imager (301).

5. The image data acquisition device based on infrared thermal imaging according to claim 4, characterized in that: A power supply module (305) is mounted on the top of the mounting plate (105), and the power supply module (305) is electrically connected to the controller (304).

6. The image data acquisition device based on infrared thermal imaging according to claim 3, characterized in that: The top of the liquid storage tank (407) is connected to a replenishment pipe (408), and one end of the top of the replenishment pipe (408) penetrates the inner wall of the cylinder (101).

7. The image data acquisition device based on infrared thermal imaging according to claim 3, characterized in that: The spraying mechanism (4) also includes a drive motor (411), the rotation shaft of which passes through the front end cover (103) and is fixedly connected to a second gear (406). The outer wall of the internally threaded tube (403) is fixedly connected to a first gear (405), which meshes with the second gear (406). The inner wall of the front end cover (103) is fixedly connected to a square tube (409), and the second slider (412) is slidably installed on the inner wall of the square tube (409).

8. The image data acquisition device based on infrared thermal imaging according to claim 7, characterized in that: A shield (104) is fixedly connected to the front surface of the front cover (103), and the first gear (405), the second gear (406) and the internal threaded tube (403) are all located inside the shield (104).

9. The image data acquisition device based on infrared thermal imaging according to claim 1, characterized in that: The inner wall of the cylinder (101) is fixedly connected with a reinforcing rib (106), and the reinforcing rib (106) is annular.

10. The image data acquisition device based on infrared thermal imaging according to claim 3, characterized in that: The pipe body located at the outlet of the water pump (410) is a telescopic corrugated pipe.

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