Detection device
By connecting the torque-matched fixtures in the spark plug mounting hole of the engine, and using the laser ranging assembly to detect the distance between the piston and the fixture, the measurement inaccuracy problem caused by the existing detection devices relying on manual judgment is solved, and high-precision engine damage detection is achieved.
Patent Information
- Application Number
- CN202422614657.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-28
AI Technical Summary
The existing detection devices rely on manual judgment when detecting the engine, resulting in inaccurate measurement results, which easily lead to problems such as not being inserted into the measuring ruler or reading errors.
The fixture is connected to the spark plug installation hole of the engine. The torque of the fixture is the same as the torque of the spark plug. Combined with the laser ranging component, the distance between the piston of the engine and the fixture is detected through the laser ranging component, avoiding insertion into the engine, reducing artificial readings, and improving measurement accuracy.
It realizes measurement without insertion into the engine, reduces measurement errors, improves the accuracy and accuracy of measurement results, and can accurately judge the damage of the engine.
Smart Images
Figure CN223228959U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of detection technology, and specifically relates to a detection device. Background Art
[0002] An engine is an energy conversion device. Its primary function is to convert the chemical energy of fuel (such as gasoline, diesel, or natural gas) into heat through combustion, and then convert the heat into mechanical energy. This process primarily occurs within the engine's sealed cylinders. When the fuel burns within the cylinders, the resulting high-temperature, high-pressure gases push the piston downward, converting this energy into mechanical energy. If an engine is damaged, it is necessary to inspect it to determine the extent of the damage.
[0003] When inspecting the engine of a fuel-powered vehicle for damage, manual disassembly and inspection are typically performed. This can easily damage various engine components and result in a waste of manpower and material resources. Therefore, to avoid damage to engine components and the resulting waste of manpower and material resources, existing technologies utilize detection devices to directly inspect the engine without disassembling it. However, using existing detection devices to inspect the engine relies heavily on subjective factors to determine whether the engine is damaged, which can easily lead to inaccurate measurement results. For example, if the measuring tape is not properly inserted, the measured value may be smaller, or the reading may be incorrect, resulting in inaccurate measurement results.
[0004] Therefore, the existing detection device has the defect of inaccurate measurement results. Utility Model Content
[0005] The purpose of the embodiments of the present application is to provide a detection device that can solve the problem of inaccurate measurement results of detection devices in related technologies.
[0006] The present invention provides a detection device, including:
[0007] A fixing member, configured to connect to a spark plug mounting hole of an engine, wherein the torque of the fixing member is configured to be the same as the torque of the spark plug of the engine;
[0008] A laser distance measuring assembly is detachably connected to the fixing member, and the laser distance measuring assembly is used to detect the distance between the piston of the engine and the fixing member.
[0009] In an embodiment of the present application, by connecting a fixing to the spark plug mounting hole of the engine and setting the torque of the fixing to be the same as the torque of the engine's spark plug, the fixing is connected to the engine instead of the spark plug, and then the laser distance measuring assembly is connected to the fixing, and the laser distance measuring assembly detects the distance between the engine's piston and the fixing. That is, the distance between the piston and the spark plug can be detected, and then it can be determined whether the engine's connecting rod is damaged or deformed, and thus whether the engine is damaged. In this way, by measuring the distance between the fixing and the engine's piston using the laser distance measuring assembly, there is no need to insert the laser distance measuring assembly into the engine, and thus there is no problem of the measuring ruler not being inserted in place. Moreover, the measurement results do not need to be read manually, which can reduce the involvement of human factors and improve the accuracy of the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 is a schematic diagram of a laser ranging assembly disclosed in an embodiment of the present application extending into a fixing member;
[0011] Figure 2 is a schematic diagram of the image acquisition component disclosed in an embodiment of the present application extending into a fixing member;
[0012] Figure 3 It is a structural schematic diagram of the fixing member disclosed in the embodiment of the present application;
[0013] Figure 4 It is a structural schematic diagram of the conversion member disclosed in the embodiment of the present application;
[0014] Figure 5 is a top view of the fixing member disclosed in the embodiment of the present application;
[0015] Figure 6 is a cross-sectional view of the conversion member disclosed in the embodiment of the present application;
[0016] Figure 7 Schematic diagram of the structure of the laser ranging assembly disclosed in the embodiment of the present application;
[0017] Figure 8 is a structural diagram of the first display module disclosed in an embodiment of the present application;
[0018] Figure 9 is a cross-sectional view of a first connecting rod disclosed in an embodiment of the present application;
[0019] Figure 10 It is a structural diagram of the image acquisition component disclosed in the embodiment of the present application;
[0020] Figure 11 is a structural diagram of the second display module disclosed in an embodiment of the present application;
[0021] Figure 12This is a diagram showing the positional relationship between the image acquisition module and the second connecting rod disclosed in an embodiment of the present application.
[0022] Description of reference numerals:
[0023] 100-fixing member; 110-connecting conduit; 111-conduit body; 112-conversion tube; 1121-adapter;
[0024] 1122 - connection part; 1123 - external thread; 120 - torque display module; 121 - torque input module;
[0025] 130- plane; 131- first plane; 132- second plane; 200- laser ranging component;
[0026] 210 - first connecting rod; 220 - first display module; 230 - laser emitting hole; 240 - laser receiving unit;
[0027] 300 - image acquisition component; 310 - second connecting rod; 320 - second display module;
[0028] 330-image acquisition module; 331-acquisition lens; 332-fill light. DETAILED DESCRIPTION
[0029] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.
[0030] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.
[0031] The detection device provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.
[0032] refer to Figures 1-12 A detection device provided in an embodiment of the present application may include a fixing member 100 and a laser ranging component 200.
[0033] The fixing member 100 can be connected to the spark plug mounting hole of the engine, and the torque of the fixing member 100 can be configured to be the same as the torque of the engine's spark plug. The laser ranging assembly 200 is detachably connected to the fixing member 100 and can be used to detect the distance between the engine's piston and the fixing member 100. In this way, the fixing member 100 can be connected to the engine in place of the spark plug, and the laser ranging assembly 200 can detect the distance between the engine's piston and the fixing member 100. This can detect the distance between the piston and the spark plug, thereby determining whether the engine's connecting rod is damaged or deformed, and thus whether the engine is damaged.
[0034] With such an arrangement, the distance between the fixing member 100 and the piston of the engine is measured by the laser distance measuring assembly 200. There is no need to insert the laser distance measuring assembly 200 into the interior of the engine, and thus there is no problem of the measuring ruler not being inserted into place. Moreover, the measurement result does not need to be read manually, thereby reducing the involvement of human factors and improving the accuracy of the measurement result. In addition, when the torque of the fixing member 100 is the same as the torque of the engine's spark plug, it means that the fixing member 100 is tightened in place. At this time, the measurement result of the laser distance measuring assembly 200 is more accurate and more convincing.
[0035] In an optional embodiment of the present application, the fixing member 100 may include a connecting conduit 110, which may be used for threaded connection with the spark plug mounting hole, and the torque of the connecting conduit 110 may be configured to be the same as the torque of the spark plug. The first end of the laser ranging assembly 200 may extend into the connecting conduit 110, and the first end of the laser ranging assembly 200 may be flush with the end of the connecting conduit 110 located in the spark plug mounting hole. In this way, the laser emission point of the laser ranging assembly 200 can be flush with the target point position, and the distance between the engine piston and the connecting conduit 110 can be directly measured, and the distance between the spark plug and the piston can be directly obtained. The measurement process is simple, no additional calculations are required, and the measurement error can be minimized to the greatest extent, thereby improving the measurement accuracy.
[0036] In other embodiments, the first end of the laser ranging assembly 200 may not be flush with the end of the connecting conduit 110 located within the spark plug mounting hole. Specifically, the first end of the laser ranging assembly 200 may pass through the connecting conduit 110, or the first end of the laser ranging assembly 200 may be located within the connecting conduit 110 and spaced apart from the end of the connecting conduit 110 located within the spark plug mounting hole.
[0037] In an optional embodiment, the fixing member 100 may further include a torque detection element and a torque display module 120. The torque detection element may be connected to the connecting conduit 110 and may be used to detect the torque of the connecting conduit 110. The torque display module 120 may be disposed on the connecting conduit 110 and may be communicatively connected to the torque detection element to display the torque value detected by the torque detection element. This facilitates the operator to observe the torque of the fixing member 100 and further facilitates adjusting the torque of the fixing member 100 so that the torque of the fixing member 100 can be adjusted to be the same as the torque of the spark plug. Here, the torque detection element may be a torque sensor.
[0038] In other embodiments, the fixing member 100 may not include the torque detection element and the torque display module 120. Specifically, the length of the fixing member 100 extending into the spark plug mounting hole can be observed to determine whether the torque of the fixing member 100 is the same as the torque of the spark plug.
[0039] Optionally, the fixing member 100 may further include a torque input module 121 and an alarm module. The torque input module 121 may be disposed on the torque display module 120 and may be communicatively connected to the torque display module 120. The alarm module may be communicatively connected to the torque input module 121 and the torque detection element, respectively. When the torque detected by the torque detection element is the same as the torque input by the torque input module 121, the alarm module sounds an alarm. In this way, the alarm module's alarm may prompt the operator to stop twisting the fixing member 100 in a timely manner, thereby helping the operator to more accurately adjust the torque parameters and achieve fine control of the torque of the fixing member 100. Here, the torque input module 121 may be a button on the torque display module 120.
[0040] Of course, the fixing member 100 may also not include an alarm module. Specifically, the operator can determine whether the torque of the fixing member 100 is the same as the input torque by observing the torque display module 120. When the torques are the same, the operator stops twisting the fixing member 100. Furthermore, the fixing member 100 may also not include the torque input module 121.
[0041] In an alternative embodiment, connecting conduit 110 may include a conduit body 111 and at least two conversion tubes 112. Each conversion tube 112 is detachably connected to conduit body 111. Each conversion tube 112 may be provided with external threads 1123 for threaded connection with a spark plug mounting hole. The diameter and pitch of external threads 1123 of each conversion tube 112 may differ. Thus, by replacing different conversion tubes 112, connecting conduit 110 can be adapted for use with different spark plug mounting holes.
[0042] Of course, the connecting conduit 110 may also include only one conversion tube 112 , and the conversion tube 112 is non-detachably connected to the conduit body 111 .
[0043] Optionally, the conversion tube 112 may include an adapter portion 1121 and a connecting portion 1122 connected to the adapter portion 1121, an external thread 1123 may be provided on the connecting portion 1122, and the connecting portion 1122 may extend into the spark plug mounting hole and be connected to the spark plug mounting hole; the adapter portion 1121 may be connected to the conduit body 111, specifically, the adapter portion 1121 may extend into the conduit body 111 and be clamped to the conduit body 111, or the adapter portion 1121 may be connected to the conduit body 111 by a connecting screw, etc.
[0044] Here, the inner diameter of the conversion tube 112 may be the same as the inner diameter of the catheter body 111 to avoid hindering the insertion of the laser ranging component 200 or the image acquisition component 300 described below.
[0045] In some embodiments, the outer wall of the connecting conduit 110 may be provided with at least two flat surfaces 130, including a first flat surface 131 and a second flat surface 132. The first flat surface 131 and the second flat surface 132 may be disposed opposite each other, and both the first flat surface 131 and the second flat surface 132 may be adapted to mate with the gripping portion of a wrench. This facilitates the wrench in gripping and rotating the connecting conduit 110.
[0046] Of course, the flat surface 130 may not be provided on the outer wall of the connecting conduit 110 . When installing the fixing member 100 , the operator may directly hold the connecting conduit 110 and rotate the connecting conduit 110 .
[0047] In an optional embodiment of the present application, the laser ranging assembly 200 may include a laser ranging module, a first connecting rod 210 and a first display module 220 .
[0048] Among them, the laser ranging module can be used to measure the distance between the engine's piston and the connecting conduit 110. In this way, by measuring the distance between the piston and the connecting conduit 110, the distance between the spark plug and the piston can be indirectly measured, and then it can be determined whether the engine's connecting rod is damaged.
[0049] Here, the laser ranging module can be mounted on the first end of first connecting rod 210. The first end of first connecting rod 210 can extend into connecting conduit 110 and be flush with the end of connecting conduit 110 located within the spark plug mounting hole. This allows the laser emission point to be aligned with the target point, directly measuring the distance between the engine piston and connecting conduit 110, and thus the distance between the spark plug and piston. This simplifies the measurement process, eliminates the need for additional calculations, minimizes measurement errors, and improves measurement accuracy.
[0050] The first display module 220 can be connected to the second end of the first connecting rod 210 and can be positioned in a manner that allows the first display module 220 to engage with the connecting conduit 110 in a direction from the second end of the first connecting rod 210 to the first end of the first connecting rod 210. This allows the laser ranging assembly 200 to be installed on the fixing member 100, making assembly and disassembly simple and convenient. Furthermore, the positional engagement of the first display module 220 with the connecting conduit 110 ensures that the first end of the first connecting rod 210 is flush with the end of the connecting conduit 110 located within the spark plug mounting hole. Furthermore, the first display module 220 can be communicatively connected to the laser ranging module to display the distance value between the piston and the connecting conduit 110, as detected by the laser ranging module, for easy viewing by the operator.
[0051] In other embodiments, the first display module 220 may not be limitedly engaged with the connecting conduit 110 along the direction from the second end of the first connecting rod 210 to the first end of the first connecting rod 210, and the first connecting rod and the connecting conduit 110 may be connected by a fixing screw or the like. Furthermore, the laser ranging assembly 200 may not include the first connecting rod 210 and the first display module 220. Specifically, the laser ranging module may be detachably connected to one end of the connecting conduit 110 located within the spark plug mounting hole. Here, the laser ranging module may be connected to the connecting conduit 110 by a screw or the like, and the laser ranging module may be communicatively connected to the torque display module 120. The laser ranging module may transmit measurement results to the torque display module 120, and the torque display module 120 may display the measurement results.
[0052] Optionally, the laser ranging module may include a laser emitting unit and a laser receiving unit 240, both of which may be located at the first end of the first connecting rod 210, and the laser receiving unit 240 may be arranged around the laser emitting unit. In this way, the received laser signal can be ensured to be more complete and stable, and the measurement error caused by angle deviation or occlusion can be reduced. In addition, the arrangement of the laser receiving unit 240 around the laser emitting unit helps to capture more reflected signals, thereby improving the sensitivity and response speed of the laser receiving unit 240 and further improving the accuracy of the measurement results.
[0053] Here, the first end of the first connection rod 210 may be provided with a laser emitting hole 230 , and the laser emitting part may be located at the laser emitting hole 230 .
[0054] In the embodiment of the present application, the laser distance measuring assembly 200 is used to measure the distance between the piston of the engine and the fixing member 100, which can reduce the error of the measurement result to 0.01 mm, thereby effectively improving the accuracy of the measurement result.
[0055] In an optional embodiment of the present application, the detection device may further include an image acquisition assembly 300, which may be detachably connected to the fixing member 100 and may be used to capture images of the interior of the engine. In this manner, the images captured by the image acquisition assembly 300 may be used to determine whether there is water accumulation, carbon deposits, or damage within the engine. Furthermore, before measuring the engine, the image acquisition assembly 300 may be used to conduct a preliminary investigation of damage, water accumulation, carbon deposits, and the like within the engine, thereby laying the foundation for the accuracy of the subsequent measurement results of the laser ranging assembly 200.
[0056] In other embodiments, the detection device may not include the image acquisition component 300 .
[0057] In an optional embodiment, the first end of image acquisition assembly 300 can extend into connecting conduit 110 and be flush with the end of connecting conduit 110 located within the spark plug mounting hole. This arrangement reduces image distortion and blurring caused by angular deviation or light refraction while maintaining the acquisition angle, thereby obtaining clearer images. It also allows direct focus on the interior of the engine for image acquisition, reducing signal attenuation, increasing image brightness and contrast, and further enhancing image quality.
[0058] Of course, the first end of the image acquisition component 300 may not be flush with the end of the connecting conduit 110 located in the spark plug mounting hole. Specifically, the first end of the image acquisition component 300 may pass through the connecting conduit 110, or the first end of the image acquisition component 300 may be located in the connecting conduit 110 and set at a distance from the end of the connecting conduit 110 located in the spark plug mounting hole.
[0059] In an optional embodiment, the image acquisition assembly 300 may include an image acquisition module 330 , a second connecting rod 310 , and a second display module 320 .
[0060] The image acquisition module 330 can be used to capture images of the interior of the engine. Optionally, the image acquisition module 330 can include a capture lens 331 and a fill light 332. The capture lens 331 is used to capture images of the interior of the engine. The fill light 332 can be located to the side of the capture lens 331 and can illuminate the interior of the engine to provide fill light for the capture lens 331. Of course, the image acquisition module 330 can also include only the capture lens 331 without the fill light 332.
[0061] Here, the fill light 332 may be an infrared fill light, and the collection lens 331 may be a wide-angle endoscope.
[0062] Furthermore, the image acquisition module 330 can be mounted on the first end of the second connecting rod 310. The first end of the second connecting rod 310 can extend into the connecting conduit 110 and be flush with the end of the connecting conduit 110 located within the spark plug mounting hole. This ensures that the acquisition angle is maintained while reducing image distortion and blurring caused by angular deviation or light refraction, resulting in clearer images. Image acquisition can also be directly aligned with the target, reducing signal attenuation, increasing image brightness and contrast, and further enhancing image quality.
[0063] The second display module 320 can be connected to the second end of the second connecting rod 310 and can be positioned in a manner that allows the second display module 320 to engage with the connecting conduit 110 in a direction from the second end of the second connecting rod 310 to the first end of the second connecting rod 310. This allows the image acquisition assembly 300 to be installed on the fixing member 100 and to be easily and conveniently assembled and disassembled. Furthermore, the positional engagement of the second display module 320 with the connecting conduit 110 ensures that the first end of the second connecting rod 310 is flush with the end of the connecting conduit 110 located within the spark plug mounting hole. The second display module 320 can be communicatively connected to the image acquisition module 330 to display images of the engine interior captured by the image acquisition module 330 for easy viewing by the operator.
[0064] In other embodiments, the second display module 320 may not be limitedly engaged with the connecting conduit 110 along the direction from the second end of the second connecting rod 310 to the first end of the second connecting rod 310, and the second connecting rod 310 and the connecting conduit 110 may be connected by a fixing screw or the like. Furthermore, the image acquisition assembly 300 may not include the second connecting rod 310 and the second display module 320. Specifically, the image acquisition module 330 may be detachably connected to one end of the connecting conduit 110 located within the spark plug mounting hole. Here, the image acquisition module 330 may be connected to the connecting conduit 110 by a screw or the like, and the image acquisition module 330 may be in communication with the torque display module 120. The image acquisition module 330 may transmit image information to the torque display module 120, causing the torque display module 120 to display the image information.
[0065] It should be noted that the diameters of the first connecting rod 210 and the second connecting rod 310 may be smaller than or equal to the inner diameter of the connecting conduit 110 .
[0066] The detection device provided in the embodiment of the present application can be applied to the fields of vehicle maintenance, vehicle damage assessment, engine loss identification, teaching, etc., and can detect whether engine pistons, cylinder walls, connecting rods and other components are damaged.
[0067] In the embodiment of the present application, when using the detection device, the fixing member 100 is first installed on the spark plug mounting hole of the engine, and the torque of the fixing member 100 is configured to be the same as the torque of the spark plug. Then, the image acquisition component 300 is extended into the connecting conduit 110 of the fixing member 100, and the image acquisition module 330 of the image acquisition component 300 captures the image of the interior of the engine, and sends the image information to the second display module 320, so that the second display module 320 displays it for observation by the operator. The operator can judge the loss, water accumulation, carbon deposition, etc. inside the engine based on the image information to conduct a preliminary investigation. After completing the image acquisition, the image acquisition component 300 is removed.
[0068] Then, the laser ranging assembly 200 is extended into the connecting conduit 110 of the fixing member 100, and the distance between the connecting conduit 110 and the piston of the engine is measured by the laser ranging module of the laser ranging assembly 200, and the measured distance value is transmitted to the first display module 220, so that the first display module 220 displays it, and the distance between the spark plug and the piston of the engine can be obtained. By judging the distance between the spark plug and the piston of the engine, it can be determined whether the connecting rod of the engine is damaged, and then it can be determined whether the engine is damaged.
[0069] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.
Claims
1. A detection device, characterized in that: include: A fixing member (100) is used to connect to a spark plug mounting hole of an engine, and the torsional force of the fixing member (100) is configured to be the same as the torsional force of the spark plug of the engine; A laser distance measuring assembly (200) is detachably connected to the fixing member (100), and the laser distance measuring assembly (200) is used to detect the distance between the piston of the engine and the fixing member (100).
2. The detection device according to claim 1, characterized in that The fixing member (100) comprises a connecting conduit (110), the connecting conduit (110) being used for threaded connection with the spark plug mounting hole, the torsion of the connecting conduit (110) being configured to be the same as the torsion of the spark plug; The first end of the laser distance measuring assembly (200) can extend into the connecting conduit (110), and the first end of the laser distance measuring assembly (200) is flush with an end of the connecting conduit (110) located in the spark plug mounting hole.
3. The detection device according to claim 2, characterized in that The fixing member (100) further includes: a torque detection element connected to the connecting conduit (110) and used to detect the torque of the connecting conduit (110); A torque display module (120) is provided on the connecting conduit (110), and the torque display module (120) is communicatively connected to the torque detection element.
4. The detection device according to claim 3, characterized in that The fixing member (100) further includes: a torque input module (121), disposed on the torque display module (120) and communicatively connected to the torque display module (120); An alarm module is communicatively connected to the torque input module (121) and the torque detection element, and when the torque detected by the torque detection element is the same as the torque input by the torque input module (121), the alarm module sounds an alarm.
5. The detection device according to claim 2, characterized in that The connecting conduit (110) comprises: a catheter body (111); At least two conversion tubes (112), each of the conversion tubes (112) can be detachably connected to the conduit body (111), each of the conversion tubes (112) is provided with an external thread (1123) for threaded connection with the spark plug mounting hole, and the diameter and pitch of the external thread (1123) of each conversion tube (112) are different.
6. The detection device according to claim 2, characterized in that At least two planes (130) are provided on the outer wall of the connecting conduit (110), including a first plane (131) and a second plane (132), the first plane (131) and the second plane (132) being arranged opposite to each other, and both the first plane (131) and the second plane (132) are used to fit with the clamping portion of the wrench.
7. The detection device according to claim 2, characterized in that The laser ranging assembly (200) comprises: a laser distance measuring module, used for detecting the distance between the piston of the engine and the connecting conduit (110); a first connecting rod (210), the laser ranging module being arranged at a first end of the first connecting rod (210), and the first end of the first connecting rod (210) being capable of extending into the connecting conduit (110) and being flush with an end of the connecting conduit (110) located in the spark plug mounting hole; A first display module (220) is communicatively connected to the laser ranging module, the first display module (220) is connected to the second end of the first connecting rod (210), and the first display module (220) is limitedly matched with the connecting conduit (110) along the direction from the second end of the first connecting rod (210) to the first end of the first connecting rod (210).
8. The detection device according to claim 2, characterized in that The detection device further comprises an image acquisition component (300), the image acquisition component (300) being detachably connected to the fixing member (100), and the image acquisition component (300) being used to acquire images of the interior of the engine.
9. The detection device according to claim 8, characterized in that The first end of the image acquisition component (300) can extend into the connecting conduit (110), and the first end of the image acquisition component (300) is flush with an end of the connecting conduit (110) located in the spark plug mounting hole.
10. The detection device according to claim 9, characterized in that: The image acquisition component (300) comprises: An image acquisition module (330) is used to acquire images of the interior of the engine; a second connecting rod (310), the image acquisition module (330) being arranged at a first end of the second connecting rod (310), and the first end of the second connecting rod (310) being capable of extending into the connecting conduit (110) and being flush with an end of the connecting conduit (110) located in the spark plug mounting hole; A second display module (320) is communicatively connected to the image acquisition module (330), the second display module (320) is connected to the second end of the second connecting rod (310), and the second display module (320) is limitedly matched with the connecting conduit (110) along the direction from the second end of the second connecting rod (310) to the first end of the second connecting rod (310).