Engine cylinder liner sealing detection device

Abstract

The present invention relates to an engine cylinder liner sealing detection device applied to the engine field, comprising a sealing fixed-point detection component and a detection intelligent controller for controlling the sealing fixed-point detection component, the sealing fixed-point detection component comprising a support frame, a fixed bottom sealing plate is fixedly mounted on the support frame, a movable top sealing plate is arranged directly above the fixed bottom sealing plate, a sealed air supply cylinder is arranged directly above the movable top sealing plate, an air supply cylinder is fixedly mounted on the top inner wall of the sealed air supply cylinder, and a piston plate which is slidingly sealed and connected to the sealed air supply cylinder is fixedly connected to the output end of the air supply cylinder. The detection device in the present invention can not only detect whether there are defects in the sealing of the cylinder liner, but also assist technical personnel in the field to quickly and accurately locate all leakage points if there are defects in the sealing of the cylinder liner, which is beneficial for technical personnel in the field to analyze and judge the causes of the sealing defects of the cylinder liner, and further beneficial for subsequent maintenance, adjustment and other work.

Description

Technical Field

[0001] The invention relates to a detection device, in particular to an engine cylinder liner sealing detection device applied in the engine field. Background Art

[0002] The engine cylinder liner, also known as the cylinder liner, is a hollow cylindrical shape and is an important component of the engine. It is embedded in the cylinder barrel of the cylinder body and together with the piston and cylinder head forms a combustion chamber.

[0003] As a key part of the engine combustion chamber, the sealing of the cylinder liner will directly affect the working efficiency and performance of the engine. In order to ensure the normal operation of the engine, the cylinder liner needs to be tested for sealing after production.

[0004] The detection device in the prior art can usually only detect whether there is a problem with the sealing of the cylinder liner, that is, whether the cylinder liner is leaking, but cannot detect the leakage point of the cylinder liner. The functionality and practicality are poor, which is not conducive to the subsequent maintenance and adjustment. Therefore, we propose a cylinder liner sealing detection device for an engine. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the detection device in the prior art can usually only detect whether there is a problem with the sealing of the cylinder liner when performing a sealing test on the cylinder liner, but cannot detect the leakage point of the cylinder liner.

[0006] In order to solve the above problems, the present invention provides an engine cylinder liner sealing detection device, including a sealing fixed-point detection component and a detection intelligent controller for controlling the sealing fixed-point detection component, the sealing fixed-point detection component includes a support frame, a fixed bottom sealing plate is fixedly installed on the support frame, a movable top sealing plate is arranged directly above the fixed bottom sealing plate, a sealed air supply cylinder is arranged directly above the movable top sealing plate, an air supply cylinder is fixedly installed on the top inner wall of the sealed air supply cylinder, the output end of the air supply cylinder is fixedly connected to a piston plate which is slidingly sealed with the sealed air supply cylinder, the bottom end of the sealed air supply cylinder is connected to an air guide pipe, the air guide pipe passes through the movable top sealing plate and is fixedly connected thereto, a pressure measuring tube is connected to the side wall of the sealed air supply cylinder, one end of the pressure measuring tube is connected to an air pressure sensor, and a pressure measuring tube is fixedly installed on the support frame. There is a lifting cylinder, the output end of the lifting cylinder is fixedly connected to the sealed air supply cylinder through a connecting plate, an outer cover sleeve is arranged between the fixed bottom sealing plate and the movable top sealing plate, a matching normally soft magnetic hard cylinder is fixedly installed on the inner wall of the outer cover sleeve, an electromagnet is fixedly installed on the outer wall of the outer cover sleeve, sealing gaskets are fixedly installed on the bottom end of the movable top sealing plate and the top end of the fixed bottom sealing plate, the normally soft magnetic hard cylinder consists of an elastic cylindrical capsule and a magnetically variable filling body, the elastic cylindrical capsule is arranged in a cylindrical shape and a cavity is opened inside the elastic cylindrical capsule, the magnetically variable filling body is filled in the cavity inside the elastic cylindrical capsule, the elastic cylindrical capsule is made of elastic material, and the magnetically variable filling body is made of magnetorheological fluid, and a calibration master control module, an analysis and judgment module, and a ringing feedback module are arranged in the calibration intelligent controller.

[0007] The above-mentioned engine cylinder liner sealing detection device can not only detect whether there are defects in the sealing of the cylinder liner, but also assist technical personnel in the field to quickly and accurately locate all leakage points if there are defects in the sealing of the cylinder liner.

[0008] As a further improvement of the present application, the length of the normally soft magnetic hard cylinder matches the length of the cylinder liner, the inner diameter of the normally soft magnetic hard cylinder matches the outer diameter of the cylinder liner, the calibration master control module is signal-connected to the air supply cylinder, the air pressure sensor, the lifting cylinder, and the electromagnet, the air pressure sensor is signal-connected to the analysis and judgment module, the analysis and judgment module is signal-connected to the calibration master control module and the ring feedback module, and a control button is provided on the calibration intelligent controller, which is signal-connected to the calibration master control module.

[0009] As a further improvement of the present application, a drainage pipe is embedded through the outer wall of the outer cover sleeve, one end of the drainage pipe passes through the normally soft magnetic hard cylinder and is flush with the inner wall of the normally soft magnetic hard cylinder, and the drainage pipe is fixedly and sealedly connected to the normally soft magnetic hard cylinder.

[0010] As another improvement of the present application, a linkage control module is further provided in the calibration intelligent controller, and an extension and abutment linkage assembly is provided below the air duct, the extension and abutment linkage assembly includes a support box, a double-headed cylinder with two output ends is fixedly installed in the support box, sliding rods are penetrated through the outer walls of both ends of the support box, the two sliding rods are respectively fixedly connected to the two output ends of the double-headed cylinder, and an abutment linkage plate is fixedly connected to the end of the sliding rod away from the double-headed cylinder.

[0011] As another improved supplement to the present application, the support box is fixedly connected to the air duct through a pair of connecting rods, the sliding rod is slidably connected to the outer wall of the support box, the sleeve linkage plate is set to a circular arc shape matching the inner wall of the cylinder sleeve, the calibration main control module is connected to the linkage control module signal, and the linkage control module is connected to the double-head cylinder signal.

[0012] As another improvement supplement of the present application, a limited rotation auxiliary fixing assembly is provided on the support frame, and the limited rotation auxiliary fixing assembly includes a pair of storage boxes, and a slide plate is movably provided in the storage box, and the top of the slide plate passes through the top outer wall of the storage box and extends to the outside of the storage box, and a swing shaft is provided on the slide plate, and the other end of the swing shaft is fixedly connected to the outer cover.

[0013] As another improved supplement of the present application, the slide plate is slidably connected to the top outer wall of the storage box, the swing shaft is rotatably connected to the slide plate through a bearing, and a pair of storage boxes are respectively located on the left and right sides of the outer cover.

[0014] To summarize, through the combined setting of the inspection and fixing point component, the normally soft magnetic hard cylinder, and the inspection and intelligent controller, the detection device in the present application can not only detect whether there is a defect in the sealing of the cylinder liner, but also assist technical personnel in the field to quickly and accurately locate all leakage points if there is a defect in the sealing of the cylinder liner, which is beneficial for technical personnel in the field to analyze and judge the causes of the sealing defects of the cylinder liner, and further facilitate the subsequent maintenance, adjustment and other work; through the setting of the limited rotation auxiliary fixing component and the extension and abutment linkage component, technical personnel in the field can find the leakage point of the cylinder liner more easily and accurately, thereby improving the reliability and practicality of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the engine cylinder liner sealing detection device in the first embodiment of the present application;

[0016] Figure 2 This is a front view structural schematic diagram of an engine cylinder liner sealing detection device in the first embodiment of the present application;

[0017] Figure 3 This is a schematic cross-sectional view of the outer cover in the first embodiment of the present application;

[0018] Figure 4This is a schematic diagram of a top cross-sectional structure of the outer cover sleeve in the first embodiment of the present application;

[0019] Figure 5 This is a schematic cross-sectional view of the sealed air supply cylinder in the first embodiment of the present application;

[0020] Figure 6 This is a system structure block diagram for verifying the intelligent controller in the first embodiment of the present application;

[0021] Figure 7 This is a front view structural schematic diagram of an engine cylinder liner sealing detection device in a second embodiment of the present application;

[0022] Figure 8 This is a schematic cross-sectional view of the outer cover in the second embodiment of the present application;

[0023] Fig. 9 This is a schematic diagram of the top view of the support box in the second embodiment of the present application;

[0024] Fig.10 This is a schematic diagram of the front cross-sectional structure of the support box in the second embodiment of the present application;

[0025] Fig.11 This is a system structure block diagram for verifying the intelligent controller in the second embodiment of the present application.

[0026] Description of the numbers in the figure:

[0027] 101. Support frame; 102. Fixed bottom sealing plate; 103. Movable top sealing plate; 104. Sealed air supply tube; 105. Air supply cylinder; 106. Piston plate; 107. Air guide tube; 108. Pressure measuring tube; 109. Air pressure sensor; 110. Lifting cylinder; 111. Connecting plate; 112. Outer cover; 113. Electromagnet; 114. Sealing pad; 115. Drain pipe; 201. Elastic cylindrical bag; 202. Magnetic variable filling body; 003. Calibration intelligent controller; 401. Storage box; 402. Slide plate; 403. Swing shaft; 501. Support box; 502. Connecting rod; 503. Double-headed cylinder; 504. Sliding rod; 505. Bushing linkage plate. DETAILED DESCRIPTION

[0028] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0029] The first implementation method:

[0030] Figure 1-6The invention shows a device for detecting the sealing property of an engine cylinder liner, comprising a sealing fixed point component and a detection intelligent controller 003 for controlling the sealing fixed point component. The sealing fixed point component comprises a support frame 101, on which a fixed bottom sealing plate 102 is fixedly mounted, and a movable top sealing plate 103 is arranged just above the fixed bottom sealing plate 102, and a sealed air supply cylinder 104 is arranged just above the movable top sealing plate 103, and an air supply cylinder 105 is fixedly mounted on the inner wall of the top end of the sealed air supply cylinder 104, and an active air supply cylinder 105 is fixedly connected to the output end of the air supply cylinder 105 and is connected to the sealed air supply cylinder 104 in a sliding and sealing manner. The plug plate 106, the bottom end of the sealed air supply cylinder 104 is connected to an air guide tube 107, the air guide tube 107 passes through the movable top sealing plate 103 and is fixedly connected thereto, the side wall of the sealed air supply cylinder 104 is connected to a pressure measuring tube 108, one end of the pressure measuring tube 108 is connected to an air pressure sensor 109, a lifting cylinder 110 is fixedly installed on the support frame 101, and the output end of the lifting cylinder 110 is fixedly connected to the sealed air supply cylinder 104 through a connecting plate 111, an outer cover 112 is provided between the fixed bottom sealing plate 102 and the movable top sealing plate 103, and a pressure sensor 109 is fixedly installed on the inner wall of the outer cover 112. There is a matching soft magnetic hard cylinder, an electromagnet 113 is fixedly installed on the outer wall of the outer cover sleeve 112, and a sealing gasket 114 is fixedly installed on the bottom end of the movable top sealing plate 103 and the top end of the fixed bottom sealing plate 102. The soft magnetic hard cylinder is composed of an elastic cylindrical capsule 201 and a magnetic variable filling body 202. The elastic cylindrical capsule 201 is set to a cylindrical shape and a cavity is opened inside the elastic cylindrical capsule 201. The magnetic variable filling body 202 is filled in the cavity inside the elastic cylindrical capsule 201. The elastic cylindrical capsule 201 is made of elastic material, and the magnetic variable filling body 202 is made of magnetorheological fluid. The length of the soft magnetic hard cylinder matches the length of the cylinder sleeve, and the inner diameter of the soft magnetic hard cylinder usually matches the outer diameter of the cylinder sleeve. The calibration intelligent controller 003 is provided with a calibration master control module, an analysis and judgment module, and a ring feedback module. The calibration master control module is signal-connected to the air supply cylinder 105, the air pressure sensor 109, the lifting cylinder 110, and the electromagnet 113. The air pressure sensor 109 is signal-connected to the analysis and judgment module. The analysis and judgment module is signal-connected to the calibration master control module and the ring feedback module. A control button is provided on the calibration intelligent controller 003, and the control button is signal-connected to the calibration master control module.

[0031] See also Figure 1-6During the inspection, the lifting cylinder 110 is started, so that the lifting cylinder 110 drives the sealed air supply cylinder 104 and the movable top sealing plate 103 to move upward a certain distance, and then the cylinder sleeve is placed on the inner side of the normally soft magnetic hard cylinder, and then the inspection command is issued to the inspection master control module through the control button on the inspection intelligent controller 003. After receiving the command, the inspection master control module will first start the lifting cylinder 110, so that the lifting cylinder 110 drives the sealed air supply cylinder 104 and the movable top sealing plate 103 to move downward until the movable top sealing plate 103 is tightly against the top of the cylinder sleeve, so that the two ends of the cylinder sleeve can be sealed, and then the inspection master control module will start the air supply cylinder 105, so that the air supply cylinder 105 drives the piston plate 106 to move downward a certain distance, and part of the piston plate 10 6 is squeezed into the inner side of the cylinder sleeve through the air guide pipe 107, causing the air pressure under the piston plate 106 and the inner side of the cylinder sleeve to increase, and then the verification control module will start the air pressure sensor 109 to detect the air pressure. The air pressure data detected by the air pressure sensor 109 will be transmitted to the analysis and judgment module. The analysis and judgment module can determine whether there is a problem with the sealing of the cylinder sleeve by analyzing the air pressure data. If the air pressure is stable and almost unchanged, it means that the cylinder sleeve is well sealed and there is no air leakage. At this time, the analysis and judgment module will send a signal to the ringing feedback module, causing the ringing feedback module to emit a prompt sound indicating that the cylinder sleeve is sealed. On the contrary, if the air pressure continues to decrease, it means that there is a problem with the sealing of the cylinder sleeve and there is air leakage. At this time, the analysis and judgment module will send a signal to the ringing feedback module. The feedback module sends a signal, causing the ringing feedback module to emit a prompt sound indicating that the cylinder liner sealing is unqualified. After the analysis and judgment module completes the analysis and judgment, it will feed back the results to the verification master control module. If the cylinder liner sealing is qualified, the verification master control module will close the air pressure sensor 109 and start the lifting cylinder 110 and the air supply cylinder 105, so that the lifting cylinder 110 drives the sealing air supply cylinder 104 and the movable top sealing plate 103 to move upward a certain distance, and the air supply cylinder 105 drives the piston plate 106 to move upward and reset, and then the technical personnel in this field can remove the cylinder liner. If the cylinder liner sealing is unqualified, the verification master control module will start the electromagnet 113, and then execute the operations of closing the air pressure sensor 109, starting the lifting cylinder 110 and the air supply cylinder 105. , the cylinder liner sealing is unqualified, indicating that there is a leakage point, and airflow will be generated. The airflow blows on the soft magnetic hard cylinder, which will cause the soft magnetic hard cylinder to sink and deform inward (if there are multiple leakage points, the soft magnetic hard cylinder will have multiple depressions and deformations). After the main control module of the inspection starts the electromagnet 113, under the action of the strong magnetic field of the electromagnet 113, the magnetic variable filling body 202 will instantly harden, causing the soft magnetic hard cylinder to be fixed. Therefore, after taking out the cylinder liner, observe and find the depression of the soft magnetic hard cylinder, and then find the corresponding position on the cylinder liner, which is the leakage point. After finding all the leakage points, the technicians in this field can manually close the electromagnet 113. Therefore, through the joint setting of the inspection fixed point component, the soft magnetic hard cylinder, and the inspection intelligent controller 003, the detection device in this application,It can not only detect whether there are defects in the sealing of the cylinder liner, but also assist technicians in quickly and accurately locate all leakage points if there are defects in the sealing of the cylinder liner, which is beneficial for technicians in the analysis and judgment of the causes of the sealing defects of the cylinder liner, and further facilitates the subsequent maintenance and adjustment work.

[0032] See also Figure 3-4 A drain pipe 115 is embedded in the outer wall of the outer cover sleeve 112, one end of the drain pipe 115 passes through the normally soft magnetic hard cylinder and is flush with the inner wall of the normally soft magnetic hard cylinder, and the drain pipe 115 is fixedly and sealedly connected to the normally soft magnetic hard cylinder. If the cylinder sleeve leaks, the gas flows between the normally soft magnetic hard cylinder and the cylinder sleeve through the leakage point, which will cause the air pressure inside the normally soft magnetic hard cylinder to increase, and may further cause the normally soft magnetic hard cylinder to deform completely, which will hinder technical personnel in the field from finding the depression of the normally soft magnetic hard cylinder. The drain pipe 115 can play a role of exhausting and relieving pressure, preventing the normal soft magnetic hard cylinder from deforming completely, so that technical personnel in the field can quickly and accurately find the depression of the normally soft magnetic hard cylinder, thereby improving the reliability of the detection device.

[0033] The second implementation method:

[0034] Figure 7-11An engine cylinder liner sealing detection device is shown. Different from the first embodiment, a linkage control module is also provided in the verification intelligent controller 003, and an extension linkage assembly is provided below the air duct 107. The extension linkage assembly includes a support box 501, and a double-headed cylinder 503 with two output ends is fixedly installed in the support box 501. Slide rods 504 are penetrated through the outer walls of both ends of the support box 501. The two slide rods 504 are fixedly connected to the two output ends of the double-headed cylinder 503 respectively, and the end of the slide rod 504 away from the double-headed cylinder 503 is fixedly connected to a sleeve linkage plate 505. The support box 501 is fixedly connected to the air duct 107 through a pair of connecting rods 502, and the slide rod 504 is slidably connected to the outer wall of the support box 501. The sleeve linkage plate 505 is set to a circular arc shape matching the inner wall of the cylinder liner. The verification master control module is connected to the linkage control module signal, and the linkage control The module is connected with the double-headed cylinder 503 signal. In the present embodiment, after the main control module starts the electromagnet 113, it will first send an instruction to the linkage control module to start the double-headed cylinder 503 and control the double-headed cylinder 503 to push the slide bar 504, so that the two sleeve linkage plates 505 are close to the inner wall of the cylinder sleeve. Then the air pressure sensor 109 will be closed and the lifting cylinder 110 and the air supply cylinder 105 will be started. When the lifting cylinder 110 drives the sealed air supply cylinder 104 and the movable top sealing plate 103 to move upward, under the action of the friction between the sleeve linkage plate 505 and the inner wall of the cylinder sleeve, the cylinder sleeve will move upward together with the movable top sealing plate 103, the air guide pipe 107, etc. In this way, the cylinder sleeve can be smoothly taken out and fixed to prevent the cylinder sleeve from rotating. Later, after the technicians in this field find the depression of the soft magnetic hard cylinder, they can accurately find the corresponding leakage point.

[0035] See also Figure 7A limited rotation auxiliary component is provided on the support frame 101, and the limited rotation auxiliary component includes a pair of storage boxes 401, a slide plate 402 is movably provided in the storage box 401, the top of the slide plate 402 penetrates the top outer wall of the storage box 401 and extends to the outside of the storage box 401, a swing shaft 403 is provided on the slide plate 402, and the other end of the swing shaft 403 is fixedly connected to the outer cover sleeve 112, the slide plate 402 is slidably connected to the top outer wall of the storage box 401, and the swing shaft 403 is rotatably connected to the slide plate 402 through a bearing, and a pair of storage boxes 401 are respectively located on the left and right sides of the outer cover sleeve 112. When the cylinder sleeve moves upward with the movable top sealing plate 103, etc., it will move to the top of the outer cover sleeve 112 and maintain a certain Distance, then, the technicians in this field can pull up the outer cover sleeve 112 to leave a certain space between the outer cover sleeve 112 and the fixed bottom sealing plate 102, and then swing the outer cover sleeve 112 with the swing shaft 403 as the center axis, and then find the depressions of the normally soft magnetic hard cylinder. After finding all the depressions, the outer cover sleeve 112 can be put back to its original position, and then positioned on the cylinder sleeve to find the leakage points corresponding to the depressions. Although the normally soft magnetic hard cylinder will swing when finding the depressions of the normally soft magnetic hard cylinder, after putting the outer cover sleeve 112 back to its original position, the normally soft magnetic hard cylinder will also return to its original position, so the corresponding leakage points can be accurately found on the cylinder sleeve, which can further improve the accuracy of finding the leakage points, and then improve the reliability and practicality of the detection device.

[0036] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An engine cylinder liner sealing detection device, comprising a sealing fixed point detection component and a detection intelligent controller (003) for controlling the sealing fixed point detection component, characterized in that: The inspection and fixed point assembly comprises a support frame (101), a fixed bottom sealing plate (102) is fixedly mounted on the support frame (101), a movable top sealing plate (103) is arranged directly above the fixed bottom sealing plate (102), a sealed air supply cylinder (104) is arranged directly above the movable top sealing plate (103), an air supply cylinder (105) is fixedly mounted on the top inner wall of the sealed air supply cylinder (104), an output end of the air supply cylinder (105) is fixedly connected to a piston plate (106) which is slidably and sealingly connected to the sealed air supply cylinder (104), the bottom end of the sealed air supply cylinder (104) is connected to an air guide pipe (107), the air guide pipe (107) passes through the movable top sealing plate (103) and is fixedly connected thereto, the sealed air supply cylinder (104) 04) is connected to a pressure measuring tube (108) on the side wall, one end of the pressure measuring tube (108) is connected to an air pressure sensor (109), a lifting cylinder (110) is fixedly mounted on the support frame (101), the output end of the lifting cylinder (110) is fixedly connected to the sealed air supply cylinder (104) through a connecting plate (111), an outer cover sleeve (112) is arranged between the fixed bottom sealing plate (102) and the movable top sealing plate (103), a matching soft magnetic hard cylinder is fixedly mounted on the inner wall of the outer cover sleeve (112), an electromagnet (113) is fixedly mounted on the outer wall of the outer cover sleeve (112), and a sealing gasket (114) is fixedly mounted on the bottom end of the movable top sealing plate (103) and the top end of the fixed bottom sealing plate (102); The normally soft magnetic hard cylinder is composed of an elastic cylindrical capsule (201) and a magnetic variable filling body (202); the elastic cylindrical capsule (201) is arranged in a cylindrical shape and a cavity is provided inside the elastic cylindrical capsule (201); the magnetic variable filling body (202) is filled in the cavity inside the elastic cylindrical capsule (201); the elastic cylindrical capsule (201) is made of an elastic material; the magnetic variable filling body (202) is made of a magnetorheological fluid; and the verification intelligent controller (003) is provided with a verification master control module, an analysis and judgment module, and a ringing feedback module; The length of the normally soft magnetic hard cylinder matches the length of the cylinder sleeve, the inner diameter of the normally soft magnetic hard cylinder matches the outer diameter of the cylinder sleeve, a drainage pipe (115) is embedded through the outer wall of the outer cover sleeve (112), one end of the drainage pipe (115) passes through the normally soft magnetic hard cylinder and is flush with the inner wall of the normally soft magnetic hard cylinder, and the drainage pipe (115) is fixedly and sealedly connected to the normally soft magnetic hard cylinder.

2. The engine cylinder liner sealing detection device according to claim 1, characterized in that: The calibration master control module is signal-connected to the air supply cylinder (105), the air pressure sensor (109), the lifting cylinder (110), and the electromagnet (113); the air pressure sensor (109) is signal-connected to the analysis and judgment module; the analysis and judgment module is signal-connected to the calibration master control module and the ring feedback module; a control button is provided on the calibration intelligent controller (003); and the control button is signal-connected to the calibration master control module.

3. The engine cylinder liner sealing detection device according to claim 1, characterized in that: A limited rotation auxiliary fixing assembly is arranged on the support frame (101), and the limited rotation auxiliary fixing assembly comprises a pair of storage boxes (401), a slide plate (402) is movably arranged in the storage box (401), the top end of the slide plate (402) penetrates the top outer wall of the storage box (401) and extends to the outside of the storage box (401), and a swing shaft (403) is arranged on the slide plate (402), and the other end of the swing shaft (403) is fixedly connected to the outer cover (112).

4. The engine cylinder liner sealing detection device according to claim 3, characterized in that: The slide plate (402) is slidably connected to the top outer wall of the storage box (401); the swing shaft (403) is rotatably connected to the slide plate (402) via a bearing; and a pair of storage boxes (401) are respectively located on the left and right sides of the outer cover (112).

5. The engine cylinder liner sealing detection device according to claim 1, characterized in that: The verification intelligent controller (003) is also provided with a linkage control module, and an extension-and-impedance linkage component is provided below the air guide tube (107), and the extension-and-impedance linkage component comprises a support box (501), and a double-headed cylinder (503) having two output ends is fixedly installed in the support box (501), and sliding rods (504) are penetrated through the outer walls of both ends of the support box (501), and the two sliding rods (504) are fixedly connected to the two output ends of the double-headed cylinder (503), and the end of the sliding rod (504) away from the double-headed cylinder (503) is fixedly connected to a sleeve linkage plate (505).

6. The engine cylinder liner sealing detection device according to claim 5, characterized in that: The support box (501) is fixedly connected to the air guide tube (107) via a pair of connecting rods (502); the sliding rod (504) is slidably connected to the outer wall of the support box (501); the sleeve linkage plate (505) is configured to be in an arc shape that matches the inner wall of the cylinder sleeve; the verification master control module is signal-connected to the linkage control module; and the linkage control module is signal-connected to the double-head cylinder (503).

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