Detection device and visual detection equipment

Abstract

The utility model relates to the technical field of imaging detection, in particular to a detection device and visual detection equipment. The detection device comprises a detection main body, and a front-view module and a side-view module which are integrated on the detection main body, and the front-view module comprises a front-view lens unit which gathers light in front of the detection main body to a first imaging sensor chip; the side view module comprises a side view lens unit which focuses light on the side of the detection body to the second imaging sensor chip. According to the utility model, the front view module and the side view module are integrated on the detection main body to miniaturize the whole detection device, so that the whole detection device can collect images in front of and on the side of the detection main body, the structure is greatly simplified, and collection and switching of direct view and side view are more convenient and faster; therefore, the method is suitable for multi-directional visual detection in narrow space.

Description

Technical Field

[0001] The utility model relates to the technical field of imaging detection, in particular to a detection device and visual detection equipment. Background Art

[0002] Visual inspection equipment is a multidisciplinary tool that can be used for deep exploration in various environments and can observe parts that cannot be directly seen. For example, it can observe the internal space structure and state in a sealed cavity. Since visual inspection equipment can achieve long-distance observation and operation, it is applied to various departments of modern industry such as medical, automobile, aircraft engine, chemistry, and atomic energy.

[0003] In the existing mode, visual inspection equipment generally uses one of the direct view or side view methods for visual inspection. Since visual inspection equipment usually uses a direct view pipeline or a side view pipeline for deep detection, it is necessary to switch between direct view and side view by replacing the pipeline. However, the above solution requires adding a side view visual inspection device on the basis of the direct view visual inspection device to switch the direct view and side view detection methods, and manual operation is required to replace the direct view pipeline and the side view pipeline, which makes the switching between direct view detection and side view detection cumbersome, resulting in low visual inspection efficiency, and is not suitable for rapid switching between direct view and side view in a small space. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the utility model is to provide a detection device and a visual detection equipment to solve the problem that the method of replacing the direct view pipeline and the side view pipeline in the prior art is not suitable for quickly switching between direct view detection and side view detection in a small space.

[0005] The utility model discloses a detection device, comprising a detection body, and a front-view module and a side-view module integrated on the detection body, wherein the front-view module comprises a first imaging sensor chip, and a front-view lens unit corresponding to the first imaging sensor chip, so that the front-view lens unit gathers the light in front of the detection body onto a photosensitive area of ​​the first imaging sensor chip, and the side-view module comprises a second imaging sensor chip, and a side-view lens unit corresponding to the second imaging sensor chip, so that the side-view lens unit focuses the light on the side of the detection body onto the photosensitive area of ​​the second imaging sensor chip.

[0006] Optionally, the detection body includes a side view fixing component and a front view fixing component, the side view fixing component includes a connecting piece, the connecting piece is provided with a side view port, the side view module is located in the connecting piece, and the side view lens unit collects light from the side of the detection body through the side view port;

[0007] The forward-looking fixing assembly includes a fixing member located at the front end of the connecting member, a positioning channel is provided on the fixing member, the forward-looking module is located in the positioning channel, and the forward-looking lens unit collects light in front of the detection subject through a front port of the positioning channel.

[0008] Optionally, a flexible circuit board is disposed in the connecting member, and the flexible circuit board electrically connects the first imaging sensor chip and the second imaging sensor chip;

[0009] An avoidance gap corresponding to the flexible circuit board is formed between the connecting member and the fixing member, and a limiting member in contact with the end of the fixing member is arranged on the front end surface of the connecting member.

[0010] Optionally, the side view fixing assembly further includes a first shell for accommodating the connecting member, and the front view fixing assembly further includes a second shell for accommodating the fixing member, the second shell is provided with a docking portion corresponding to the connecting member, and a third shell for accommodating the docking portion is provided between the first shell and the second shell, wherein the docking portion is provided with a slot corresponding to the limiting member.

[0011] Optionally, the forward-view fixing assembly further comprises a forward-view protective cover, which is arranged in the front port of the positioning channel so that external light passes through the forward-view protective cover and is collected by the forward-view lens unit;

[0012] The side view fixing assembly also includes a side view protective cover, which is arranged in the side view port so that external light can pass through the side view protective cover and be collected by the side view lens unit.

[0013] Optionally, a first lighting unit is provided on the fixing member, and a lighting direction of the first lighting unit is consistent with a light collection direction of the front view lens unit; and / or

[0014] A second lighting unit is provided on the connecting member, and a lighting direction of the second lighting unit is consistent with a light collecting direction of the side view lens unit; and / or

[0015] A fill light unit is provided on the connecting member, and the lighting direction of the fill light unit is consistent with the light collection direction of the side view lens unit.

[0016] Optionally, an avoidance groove is provided on the outer side wall of the connecting member, and the side viewing port and the second lighting unit are both located on the bottom wall of the avoidance groove, so that there is a light collection distance between the side viewing lens unit and the space on the side of the detection body.

[0017] Optionally, the front-view module includes at least one front-view lens unit, and at least one front-view lens unit is a telephoto lens; and / or

[0018] The side-view module includes at least one side-view lens unit, and at least two side-view lens units are used for binocular measurement.

[0019] Optionally, the side viewing module also includes a lens mount arranged in the connecting member, the second imaging sensor chip is arranged at the end of the lens mount, the side viewing lens unit is arranged on the lens mount, and the collecting end of the side viewing lens unit is located at the side viewing port, and a light deflecting member is arranged in the side viewing lens unit so that the light collected by the collecting end is transmitted to the second imaging sensor chip through the light deflecting member.

[0020] The utility model also provides a visual inspection device, comprising the above-mentioned inspection device.

[0021] Compared with the prior art, the detection device and visual detection equipment provided by the embodiment of the utility model have the following beneficial effects:

[0022] A structure in which a single imaging sensor chip and a lens unit are coordinated is adopted, and the above-mentioned front-view module and side-view module are integrated on a detection subject. The front-view lens unit is used to gather the light in front of the detection subject onto the photosensitive area of ​​the first imaging sensor chip, and the side-view lens unit is used to focus the light on the side of the detection subject onto the photosensitive area of ​​the second imaging sensor chip. The detection device of the utility model can collect images in front of and on the sides of the detection subject, thereby greatly simplifying the structure and making the collection and switching of direct view and side view more convenient and quick, and thus can be used to quickly switch between direct view detection and side view detection in a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0024] Figure 1 A schematic diagram of the overall structure of the detection device provided by the embodiment of the utility model;

[0025] Figure 2 A schematic diagram of an exploded structure of a detection device provided in an embodiment of the utility model;

[0026] Figure 3 A schematic diagram of the structure of the first housing, the second housing and the third housing provided in an embodiment of the utility model;

[0027] Figure 4 A schematic structural diagram of the assembly of the second housing and the connecting member provided in an embodiment of the utility model.

[0028] The reference numerals in the figures are:

[0029] 1. Detection body; 11. Side view fixing assembly; 111. Connecting piece; 112. Side view port; 113. Limiting piece; 114. First shell; 115. Side view protective cover; 116. Second lighting unit; 117. Fill-in lighting unit; 118. Avoidance groove; 12. Front view fixing assembly; 121. Fixing piece; 122. Second shell; 123. Docking part; 1231. Slot; 124. Front view protective cover; 125. First lighting unit; 2. Front view module; 21. First imaging sensor chip; 22. Front view lens unit; 3. Side view module; 31. Second imaging sensor chip; 32. Side view lens unit; 33. Lens mount; 4. Flexible circuit board; 5. Third shell; 6. Joint head. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.

[0031] The present utility model provides a detection device, such as Figure 1 and Figure 2 As shown, it includes a detection body 1, and a front view module 2 and a side view module 3 integrated on the detection body 1. The front view module 2 includes a first imaging sensor chip 21, and a front view lens unit 22 corresponding to the first imaging sensor chip 21, so that the front view lens unit 22 focuses the light in front of the detection body 1 onto the photosensitive area of ​​the first imaging sensor chip 21. The side view module 3 includes a second imaging sensor chip 31, and a side view lens unit 32 corresponding to the second imaging sensor chip 31, so that the side view lens unit 32 focuses the light on the side of the detection body 1 onto the photosensitive area of ​​the second imaging sensor chip 31. Through the setting of this structure, a single imaging sensor chip and a lens unit are used to cooperate with each other, and the front view module 2 and the side view module 3 are integrated on a detection subject 1. The front view lens unit 22 is used to focus the light in front of the detection subject 1 onto the photosensitive area of ​​the first imaging sensor chip 21, and the side view lens unit 32 is used to focus the light on the side of the detection subject 1 onto the photosensitive area of ​​the second imaging sensor chip 31, so that the detection device of this embodiment can collect images in front of and on the side of the detection subject 1, thereby making the collection and switching of direct view and side view more convenient and quick, and thus can be used to quickly switch between direct view detection and side view detection in a small space. Preferably, the detection device of the utility model can be used for engineering endoscopic detection, medical endoscopic detection, and multi-view image acquisition in a very small space; it is also suitable for binocular test cameras, infrared cameras, etc.; it can also be used for consumer electronic products such as drones.

[0032] As described above, preferably, the first imaging sensor chip 21 and the second imaging sensor chip 31 are both integrated on a PCB circuit board using a miniature ultra-small imaging chip, such as a 1-megapixel ES101 chip, and the imaging area thereof has a photosensitive area with a specific function or a specific imaging effect. The front-view lens unit 22 uses an objective lens with an outer diameter less than 3 mm, and the angle range of its field of view is 50°-80°, and the focusing mode is far focus, so as to realize the collection of front-view long-distance images. The side-view lens unit 32 uses an objective lens with an outer diameter less than 3 mm, and the angle range of its field of view is 100°-120°, and the focusing mode is near focus, so as to realize the collection of side-view close-range images. When light is irradiated onto the imaging sensor chip, the charge of the photosensitive element on the imaging sensor chip will change, and these charges are read and converted into electrical signals. After these electrical signals are amplified, sampled and processed, the final digital image can be generated.

[0033] Furthermore, the detection body 1 includes a side view fixing component 11 and a front view fixing component 12. The side view fixing component 11 includes a connecting member 111, and a side view port 112 is provided on the connecting member 111. The side view module 3 is located in the connecting member 111, and the side view lens unit 32 collects light from the side of the detection body 1 through the side view port 112;

[0034] The front view fixing assembly 12 includes a fixing member 121 located at the front end of the connecting member 111, and a positioning channel is provided on the fixing member 121. The front view module 2 is located in the positioning channel, and the front view lens unit 22 collects light in front of the detection body 1 through the front port of the positioning channel. Preferably, the front view lens unit 22 and the first imaging sensor chip 21 are pre-packaged as one.

[0035] Through the arrangement of the above structure, the detection body 1 composed of the side view fixing component 11 and the front view fixing component 12 is used, and the side view module 3 is installed and fixed by the connecting member 111, and the front view module 2 is installed and fixed by the fixing member 121, so as to realize the integration of the above-mentioned front view module 2 and side view module 3 on a detection body 1. Due to the simple structure of the side view fixing component 11 and the front view fixing component 12, the structure of the detection body 1 can be greatly simplified, and combined with the above-mentioned preferably miniaturized front view module 2 and side view module 3, the entire detection device can be further miniaturized. At the same time, the side view lens unit 32 can collect the light on the side of the detection body 1 through the side view port 112 on the connecting member 111, and the front view lens unit 22 can collect the light in front of the detection body 1 through the front port of the positioning channel, so that the detection device of this embodiment can realize direct view and side view image acquisition in a very small space.

[0036] Furthermore, a flexible circuit board 4 is disposed in the connecting member 111 , and the flexible circuit board 4 is electrically connected to the first imaging sensor chip 21 and the second imaging sensor chip 31 ;

[0037] An avoidance gap corresponding to the flexible circuit board 4 is formed between the connecting member 111 and the fixing member 121 , and a limiting member 113 in contact with the end of the fixing member 121 is disposed on the front end surface of the connecting member 111 .

[0038] Through the arrangement of the above structure, according to the positional relationship and matching structure of the above-mentioned connecting member 111 and the fixing member 121, the flexible circuit board 4 adopts a flexible printed circuit board (Flexible Printed Circuit, FPC), and utilizes its better flexibility and bendability, so that one end of the flexible circuit board 4 is located in the connecting member 111 and electrically connected to the second imaging sensor chip 31, and the other end of the flexible circuit board 4 can extend into the positioning channel of the fixing member 121 and be electrically connected to the first imaging sensor chip 21. The first imaging sensor chip 21 and the second imaging sensor chip 31 are electrically connected through the flexible circuit board 4, so that the front view module 2 and the side view module 3 can realize the exchange of signals and data, so as to work together to provide a full range of vision and imaging functions. At the same time, when the connecting member 111 and the limiting member 113 are assembled, the limiting member 113 on the front end surface of the connecting member 111 contacts the end of the fixing member 121 to ensure that there is the above-mentioned avoidance gap between the connecting member 111 and the fixing member 121 to avoid the flexible circuit board 4, so that one end of the flexible circuit board 4 is located at the above-mentioned avoidance gap, extends into the positioning channel of the fixing member 121, and is electrically connected to the first imaging sensor chip 21, thereby ensuring the stable connection of the flexible circuit board 4 to the first imaging sensor chip 21 and the second imaging sensor chip 31.

[0039] Preferably, a receiving groove is provided on the side wall of the connecting member 111 relative to the side viewing port 112, and the flexible circuit board 4 is assembled in the receiving groove to effectively save the space of the detection device and provide a larger heat dissipation area and better heat dissipation conditions, thereby reducing the operating temperature of the flexible circuit board 4 and extending its service life.

[0040] Furthermore, combined with Figure 2-Figure 4As shown, the side view fixing assembly 11 further includes a first housing 114 for accommodating the connecting member 111, and the front view fixing assembly 12 further includes a second housing 122 for accommodating the fixing member 121, and the second housing 122 is provided with a docking portion 123 corresponding to the connecting member 111, and a third housing 5 for accommodating the docking portion 123 is provided between the first housing 114 and the second housing 122. Among them, a slot 1231 corresponding to the stopper 113 is provided on the docking portion 123. Through the setting of this structure, the slot 1231 on the docking portion 123 is used to cooperate with the stopper 113 on the front end surface of the connecting member 111, so that the stopper 113 on the front end surface of the connecting member 111 provides positioning and alignment for the installation of the second housing 122, thereby ensuring that the second housing 122 is installed in the correct position and reducing the risk of assembly errors. At the same time, after the second housing 122 is installed, the second housing 122 encapsulates the fixing member 121 and the front view module 2 in the fixing member 121, and in order to ensure the stability of the connection between the docking portion 123 and the connecting member 111, the third housing 5 is sleeved on the docking portion 123, so that the third housing 5 encapsulates the position of the docking portion 123, and then the first housing 114 is sleeved on the connecting member 111 to encapsulate the connecting member 111 and the side view module 3 in the connecting member 111, so that the first housing 114, the second housing 122 and the third housing 5 encapsulate the entire front view module 2 and the side view module 3, which is conducive to waterproofing. Preferably, the outer walls of the first housing 114, the second housing 122 and the third housing 5 are flush to ensure that the entire detection device has a beautiful and neat appearance, and also provide convenient installation, assembly, maintenance and cleaning conditions.

[0041] Preferably, a joint head 6 is further provided in the third housing 5 , the joint head 6 is connected to the end of the connector 111 , and the joint head 6 is used to connect the pipeline of the visual inspection equipment.

[0042] Further, look back Figure 2 , the front view fixing assembly 12 further includes a front view protective cover 124, which is disposed in the front port of the positioning channel so that external light can be collected by the front view lens unit 22 through the front view protective cover 124;

[0043] The side view fixing assembly 11 further includes a side view protective cover 115 , which is disposed in the side view port 112 so that external light can pass through the side view protective cover 115 and be collected by the side view lens unit 32 .

[0044] Through the above-mentioned structure, the front view protection cover 124 and the side view protection cover 115 are preferably transparent glass, so that the front view protection cover 124 and the side view protection cover 115 protect the corresponding lens units without affecting the image collection of the front view lens unit 22 and the side view lens unit 32. At the same time, combined with the arrangement of the first shell 114, the second shell 122 and the third shell 5, the entire front view module 2 and the side view module 3 are sealed, which is conducive to waterproofing.

[0045] Further, a first lighting unit 125 is provided on the fixing member 121, and the illumination direction of the first lighting unit 125 is consistent with the light collection direction of the front view lens unit 22; and / or

[0046] A second lighting unit 116 is provided on the connecting member, and the lighting direction of the second lighting unit 116 is consistent with the light collection direction of the side view lens unit 32; and / or

[0047] A fill light unit 117 is provided on the connecting piece, and the lighting direction of the fill light unit 117 is consistent with the light collection direction of the side view lens unit 32 .

[0048] Through the arrangement of the above-mentioned structure, the first lighting unit 125 preferably adopts optical fiber lighting, and the second lighting unit 116 and the fill-in lighting unit 117 preferably adopt light emitting diode (LED) lighting. That is, the direct-view lighting of the detection device of this embodiment adopts optical fiber lighting, and the flexible control of the lighting position and direction can be achieved through the optical fiber bundle. The side lighting adopts the conventional LED lighting method, which has higher efficiency and longer service life. Furthermore, through the arrangement of the above-mentioned lighting units, the efficiency of the front view lens unit 22 and the side view lens unit 32 in multi-directional image acquisition in a narrow space is improved, ensuring that the final image is clear. At the same time, combined with the front view module 2 and the side view module 3, by integrating the front view module 2 and the side view module 3, as well as the lighting system on a detection body 1, not only the integration and miniaturization of the entire detection device are realized, but also the use function of the detection device is expanded.

[0049] Preferably, a light port is provided at the front end of the fixing member 121 so that the first lighting unit 125 can illuminate the front of the detection body 1 through the light port, and a packaging plate for light to pass through is provided on the light port to package the first lighting unit 125 .

[0050] Furthermore, combined with Figure 2 and Figure 3As shown, an avoidance groove 118 is provided on the outer side wall of the connecting member 111. The side viewing port 112 and the second lighting unit 116 are both located on the bottom wall of the avoidance groove 118, so that there is a light collection spacing between the side viewing lens unit 32 and the space on the side of the detection subject 1. Through the setting of this structure and the setting of the avoidance groove 118, when the detection device of this embodiment performs in-depth detection in a narrow space, the side viewing lens unit 32 at the side viewing port 112 and the second lighting unit 116 can avoid the space on the side of the detection subject 1, thereby avoiding the situation where the side viewing lens unit 32 is too close to the space on the side of the detection subject 1, resulting in unclear images collected by the side viewing lens unit 32.

[0051] Further, the front-view module 2 includes at least one front-view lens unit 22, and at least one front-view lens unit 22 is a telephoto lens; and / or

[0052] The side view module 3 includes at least one side view lens unit 32 , and at least two side view lens units 32 are used for binocular measurement. Preferably, the side view module 3 also includes a second imaging sensor chip 31 corresponding to the two side view lens units 32 one by one.

[0053] Through the arrangement of this structure, the detection device of this embodiment adopts a telephoto front view lens unit 22 to realize the acquisition of front view long-distance images. At the same time, the side view lens units 32 of binocular measurement are adopted, so that the side view module 3 can not only realize the acquisition of side view images, but also measure objects on the side of the detection subject 1. Therefore, the detection device of this embodiment is not only integrated and miniaturized, but also has expanded its use functions.

[0054] Among them, binocular measurement usually uses a special lens, called a stereo lens or binocular lens. A stereo lens consists of two parallel lenses that simulate binocular observation of the human eye. This lens enables the camera or measuring equipment to acquire images from different angles at the same time, thereby achieving depth perception and measurement of three-dimensional objects.

[0055] Further, look back Figure 2, the side view module 3 also includes a lens holder 33 arranged in the connecting member 111. The second imaging sensor chip 31 is arranged at the end of the lens holder 33, the side view lens unit 32 is arranged on the lens holder 33, and the collection end of the side view lens unit 32 is located at the side view port 112. A light deflection member is arranged in the side view lens unit 32, so that the light collected by the collection end is transmitted to the second imaging sensor chip 31 through the light deflection member. Through the arrangement of this structure, the second imaging sensor chip 31 and the side view lens unit 32 are installed and fixed by the lens holder 33. Since the side view port 112 on the connecting member 111 is located on its side wall, and the second imaging sensor chip 31, the lens holder 33 and the side view lens unit 32 are installed along the axial direction of the detection subject 1, a light deflection member is arranged in the side view lens unit 32, so that the side view lens unit 32 collects the light on the side of the detection subject 1, and the light is deflected by the light deflection member to focus on the second imaging sensor chip 31, so as to realize the collection of the image on the side of the detection subject 1. The light deflecting element is preferably a prism, a reflector, a lens or a grating.

[0056] The utility model also provides a visual inspection device, including the above-mentioned inspection device. Preferably, the visual inspection device of the utility model can be applied to engineering endoscopic inspection, medical endoscopic inspection, and multi-view image acquisition in a very small space; it is also applicable to binocular test cameras, infrared cameras, etc.; it can also be applied to consumer electronic products such as drones.

[0057] In order to further optimize the above technical solution, the terminal of the visual inspection equipment is preset with a software control program, which collects and processes the image signals on the first imaging sensor chip 21 and the second imaging sensor chip 31 respectively, and is used to control the switching of the front view lens unit 22 and the side view lens unit 32.

[0058] The detection device and visual detection equipment of the utility model adopt a structure in which a single imaging sensor chip and a lens unit cooperate, and utilize a detection body 1 composed of a side-view fixing component 11 and a front-view fixing component 12, with a connecting piece 111 for mounting and fixing the side-view module 3, and a fixing piece 121 for mounting and fixing the front-view module 2, thereby greatly simplifying the structure of the detection body 1. By integrating the above-mentioned front-view module 2 and side-view module 3 on one detection body 1, the entire detection device can be miniaturized. The front-view lens unit 22 is used to focus the light in front of the detection body 1 onto the photosensitive area of ​​the first imaging sensor chip 21, and the side-view lens unit 32 is used to focus the light on the side of the detection body 1 onto the photosensitive area of ​​the second imaging sensor chip 31, so that the detection device of the utility model can collect images in front of and on the side of the detection body 1. An illumination system for front and side illumination is integrated on the detection body 1, which not only realizes the integration and miniaturization of the entire detection device, but also expands the use function of the detection device, making the acquisition and switching of direct view and side view more convenient and quick, so as to be suitable for quickly switching between direct view detection and side view detection in a small space, thereby facilitating multi-directional visual detection in a small space.

[0059] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present utility model.

Claims

1. A detection device, characterized in that: The detection device includes a detection body, and a front-view module and a side-view module integrated on the detection body, the front-view module includes a first imaging sensor chip, and a front-view lens unit corresponding to the first imaging sensor chip, so that the front-view lens unit can focus the light in front of the detection body onto the photosensitive area of ​​the first imaging sensor chip, and the side-view module includes a second imaging sensor chip, and a side-view lens unit corresponding to the second imaging sensor chip, so that the side-view lens unit can focus the light on the side of the detection body onto the photosensitive area of ​​the second imaging sensor chip.

2. The detection device according to claim 1, characterized in that: The detection body includes a side view fixing component and a front view fixing component, the side view fixing component includes a connecting piece, the connecting piece is provided with a side view port, the side view module is located in the connecting piece, and the side view lens unit collects light from the side of the detection body through the side view port; The forward-looking fixing assembly includes a fixing member located at the front end of the connecting member, a positioning channel is provided on the fixing member, the forward-looking module is located in the positioning channel, and the forward-looking lens unit collects light in front of the detection subject through a front port of the positioning channel.

3. The detection device according to claim 2, characterized in that: A flexible circuit board is disposed in the connecting member, and the flexible circuit board electrically connects the first imaging sensor chip and the second imaging sensor chip; An avoidance gap corresponding to the flexible circuit board is formed between the connecting member and the fixing member, and a limiting member in contact with the end of the fixing member is arranged on the front end surface of the connecting member.

4. The detection device according to claim 3, characterized in that: The side view fixing assembly also includes a first shell for accommodating the connecting member, and the front view fixing assembly also includes a second shell for accommodating the fixing member, the second shell is provided with a docking portion corresponding to the connecting member, and a third shell for accommodating the docking portion is provided between the first shell and the second shell, wherein the docking portion is provided with a slot corresponding to the limiting member.

5. The detection device according to claim 4, characterized in that: The front view fixing assembly further comprises a front view protective cover, which is arranged in the front port of the positioning channel so that external light can pass through the front view protective cover and be collected by the front view lens unit; The side view fixing assembly also includes a side view protective cover, which is arranged in the side view port so that external light can pass through the side view protective cover and be collected by the side view lens unit.

6. The detection device according to any one of claims 2 to 5, characterized in that: The fixing member is provided with a first lighting unit, and the lighting direction of the first lighting unit is consistent with the light collection direction of the front view lens unit; and / or The connecting member is provided with a second lighting unit, and the lighting direction of the second lighting unit is consistent with the light collection direction of the side view lens unit; and / or A fill light unit is provided on the connecting member, and the lighting direction of the fill light unit is consistent with the light collection direction of the side view lens unit.

7. The detection device according to claim 6, characterized in that: An avoidance groove is arranged on the outer side wall of the connecting member, and the side viewing port and the second lighting unit are both located on the bottom wall of the avoidance groove, so that there is a light collecting distance between the side viewing lens unit and the space on the side of the detection body.

8. The detection device according to any one of claims 2 to 5, characterized in that: The front-view module includes at least one front-view lens unit, and at least one front-view lens unit is a telephoto lens; and / or The side view module includes at least one side view lens unit, and at least two side view lens units are used for binocular measurement.

9. The detection device according to any one of claims 2 to 5, characterized in that: The side-view module also includes a lens mount arranged in the connecting member, the second imaging sensor chip is arranged at the end of the lens mount, the side-view lens unit is arranged on the lens mount, and the collecting end of the side-view lens unit is located at the side viewing port, and a light deflecting member is arranged in the side-view lens unit so that the light collected by the collecting end is transmitted to the second imaging sensor chip through the light deflecting member.

10. A visual inspection device, characterized in that: The visual inspection equipment comprises the inspection device according to any one of claims 1-9.

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