Scanning device

Abstract

The invention discloses a scanning device, and belongs to the technical field of scanning detection. The scanning device comprises a base, an inner side scanning assembly and an outer side scanning assembly, the inner side scanning assembly comprises an inner side framework main body and a first scanner, the inner side framework main body is arranged on the base, and the first scanner is rotatably arranged on the inner side framework main body around a first axis; the outer side scanning assembly comprises an outer side framework main body and a second scanner, the outer side framework main body is arranged on the base and is provided with a groove, the groove is opposite to the inner side scanning assembly, so that a detection channel is formed between the outer side framework main body and the inner side framework main body, and the second scanner is movably arranged on the outer side framework main body; the second scanner can rotate around the first axis relative to the outer side framework body. Therefore, the detected object does not need to stay for scanning, the passing speed is improved, and the scanning efficiency is improved; the occupied area of the inner side scanning assembly and the outer side scanning assembly is limited, and the occupied area of the scanning device can be reduced.

Description

Technical Field

[0001] This application belongs to the technical field of scanning detection, and particularly relates to a scanning device. Background Art

[0002] In places such as subway stations and railway stations where security inspections are required, security inspection equipment is usually installed. The security inspection equipment is provided with a scanning device, which uses the scanning device to perform a full - range scan of the surroundings of the object to be inspected, so as to prevent the object to be inspected from carrying dangerous items.

[0003] A rotatable scanning device is disclosed in the related art. That is, when the object to be inspected is at the center, the scanning device rotates around the central axis to scan the object to be inspected from all directions and expand the scanning area. However, this method requires the object to be inspected to stop at the center to ensure that the scanning device has enough time to scan the whole body of the object to be inspected, resulting in slow passing speed and low scanning efficiency. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide a scanning device, which can at least solve the problems of slow passing speed of the object to be inspected and low scanning efficiency existing in the scanning device in the related art.

[0005] The embodiments of this application provide a scanning device, including:

[0006] A base;

[0007] An inner - side scanning component, the inner - side scanning component includes an inner - side skeleton main body and a first scanner. The inner - side skeleton main body is arranged on the base, and the first scanner is rotatably arranged on the inner - side skeleton main body around a first axis;

[0008] An outer - side scanning component, the outer - side scanning component includes an outer - side skeleton main body and a second scanner. The outer - side skeleton main body is arranged on the base, and the outer - side skeleton main body is provided with a groove. The groove faces the inner - side scanning component, so as to form a detection channel between the outer - side skeleton main body and the inner - side skeleton main body. The second scanner is movably arranged on the outer - side skeleton main body, and the second scanner can rotate around the first axis relative to the outer - side skeleton main body.

[0009] In the embodiment of the present application, a detection channel is directly formed between the inner frame body of the inner scanning component and the outer frame body of the outer scanning component. During the process of the object to be inspected passing through the detection channel, the first scanner and the second scanner can respectively scan the object to be inspected. Moreover, the first scanner and the second scanner are respectively located on both sides of the object to be inspected. When the object to be inspected completely passes through the detection channel, the first scanner and the second scanner jointly complete a full-range scan of the object to be inspected. In this way, there is no need for the object to be inspected to stay for scanning, the passing speed is increased, and thus it is beneficial to improve the scanning efficiency. Moreover, since the first scanner and the second scanner jointly cooperate to scan the object to be inspected, the first scanner and the second scanner can complete the scanning process by rotating a certain angle around the first axis respectively, and the first scanner and the second scanner do not need to rotate in all directions. Therefore, the space occupied by the inner scanning component and the outer scanning component is limited, and the base can be set to be smaller, which is beneficial to reducing the occupied space of the scanning device. Description of the Drawings

[0010] Figure 1 is a schematic structural diagram of the scanning device disclosed in the embodiment of the present application;

[0011] Figure 2 is a top view of the scanning device disclosed in the embodiment of the present application;

[0012] Figure 3 is an exploded view of the inner scanning component of the scanning device disclosed in the embodiment of the present application;

[0013] Figure 4 is an exploded view of the outer scanning component of the scanning device disclosed in the embodiment of the present application;

[0014] Figure 5 is a partial structural schematic diagram of the outer scanning component disclosed in the embodiment of the present application;

[0015] Figure 6 is Figure 5 an enlarged view of part A in

[0016] Figure 7 is Figure 5 an enlarged view of part C in

[0017] Figure 8 is Figure 5 an enlarged view of part B in

[0018] Figure 9 is Figure 7 a schematic diagram of the part shown in

[0019] Figure 10 is a sectional view of the scanning device disclosed in the embodiment of the present application;

[0020] Figures 11 - 13It is a schematic diagram of the scanning device disclosed in the embodiments of the present application during the passage of the object to be inspected.

[0021] Description of the reference numerals:

[0022] 100 - Base

[0023] 200 - Inner scanning assembly, 210 - Inner skeleton body, 211 - First slot, 220 - First scanner, 230 - First driving mechanism, 231 - First driving source, 232 - First rotating member, 233 - First transmission belt, 234 - Second rotating member, 240 - First wave - transmitting structure, 250 - First sheet metal part

[0024] 300 - Outer scanning assembly, 310 - Outer skeleton body, 311 - Second slot, 320 - Second scanner, 330 - Second driving mechanism, 331 - Second driving source, 332 - Third rotating member, 332a - Coupling, 333 - Second transmission belt, 334 - Arc - shaped mounting plate, 335 - First guide wheel, 336 - Second guide wheel, 337 - Pressure plate, 341 - Arc - shaped guide rail, 342 - Sliding part, 343 - First bearing plate, 344 - Second bearing plate, 345 - Connecting block, 346 - Accommodating space, 350 - Second wave - transmitting structure, 360 - Second sheet metal part, 370 - Connecting piece

[0025] a - First axis

[0026] 400 - Detection channel

[0027] 500 - Object to be inspected Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0029] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order different from those illustrated or described here, and the objects distinguished by "first", "second", etc. generally belong to the same category, and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0030] The following will, with reference to the accompanying drawings, describe in detail the scanning device provided by the embodiments of the present application through specific embodiments and their application scenarios.

[0031] Please refer to Figures 1 - 13 , the scanning device disclosed in the embodiments of the present application includes a base 100, an inner scanning component 200, and an outer scanning component 300. Among them, the base 100 provides an installation basis for the inner scanning component 200 and the outer scanning component 300. The inner scanning component 200 and the outer scanning component 300 are both arranged on the base 100. Moreover, during the passage of the object to be inspected 500, the inner scanning component 200 and the outer scanning component 300 respectively perform scans on both sides of the object to be inspected 500.

[0032] As Figure 3 shown, the inner scanning component 200 includes an inner skeleton main body 210 and a first scanner 220. The inner skeleton main body 210 is arranged on the base 100, and the inner skeleton main body 210 can be fixedly connected to the base 100 by welding, bonding, or other means; the first scanner 220 is rotatably arranged on the inner skeleton main body 210 around a first axis a. Optionally, when the first axis a passes through the first scanner 220, one of the first scanner 220 and the inner skeleton main body 210 can be provided with a cylindrical shaft, and the other can be provided with a cylindrical groove. The cylindrical shaft extends into the cylindrical groove, and the cylindrical shaft and the cylindrical groove are rotationally matched. The axes of the cylindrical shaft and the cylindrical groove are the first axis a, so as to realize the rotational connection between the first scanner 220 and the inner skeleton main body 210; when the first axis a does not pass through the first scanner 220, the inner skeleton main body 210 can be provided with a first arc-shaped groove, the center of the circle corresponding to the first arc-shaped groove passes through the first axis a, and the first scanner 220 can move along the first arc-shaped groove, so as to realize the rotation of the first scanner 220 around the first axis a relative to the inner skeleton main body 210.

[0033] As Figure 4As shown in the figure, the outer scanning assembly 300 includes an outer frame body 310 and a second scanner 320. The outer frame body 310 is disposed on the base 100, and the outer frame body 310 can be fixedly connected to the base 100 by welding, bonding or other means. Moreover, the outer frame body 310 is provided with a groove opposite to the inner scanning assembly 200, so as to form a detection channel 400 between the outer frame body 310 and the inner frame body 210. The object to be inspected directly passes through the detection channel 400 during the passing process. The second scanner 320 is movably disposed on the outer frame body 310, and the second scanner 320 can rotate relative to the outer frame body 310 about the first axis a. Optionally, the outer frame body 310 can be provided with a second arc-shaped groove, the center of the circle corresponding to the second arc-shaped groove passes through the first axis a, and the second scanner 320 can move along the second arc-shaped groove to realize the rotation of the second scanner 320 relative to the outer frame body 310 about the first axis a.

[0034] Wherein, the first scanner 220 and the second scanner 320 can be linear array scanners, can also be area array scanners, or can be other types of scanners, and the embodiments of the present application do not limit this. Moreover, the embodiments of the present application do not limit the structures of the inner frame body 210 and the outer frame body 310, as long as the first scanner 220 and the second scanner 320 can rotate about the first axis a relative to the inner frame body 210 and the outer frame body 310 respectively.

[0035] In the embodiments of the present application, a detection channel 400 is directly formed between the inner frame body 210 of the inner scanning assembly 200 and the outer frame body 310 of the outer scanning assembly 300. During the process of the object to be inspected passing through the detection channel 400, the first scanner 220 and the second scanner 320 can respectively scan the object to be inspected 500. Moreover, the first scanner 220 and the second scanner 320 are respectively located on both sides of the object to be inspected. When the object to be inspected completely passes through the detection channel 400, the first scanner 220 and the second scanner 320 jointly complete a full-range scan of the object to be inspected 500. In this way, there is no need for the object to be inspected to stay for scanning, the passing speed is increased, and thus it is beneficial to improve the scanning efficiency.

[0036] Moreover, since the first scanner 220 and the second scanner 320 jointly cooperate to scan the object to be inspected 500, the first scanner 220 and the second scanner 320 can respectively rotate a certain angle about the first axis a to complete the scanning process. The first scanner 220 and the second scanner 320 do not need to rotate in all directions. Therefore, the occupied space of the inner scanning assembly 200 and the outer scanning assembly 300 is limited, and the base 100 can be set smaller, which is beneficial to reducing the occupied space of the scanning device.

[0037] In an alternative embodiment, the first axis a is located outside the inner frame body 210, that is, the first axis a does not pass through the inner frame body 210. Optionally, both the inner frame body 210 and the outer frame body 310 can be arc-shaped columnar structures or other structures.

[0038] In another embodiment, the first axis a passes through the inner frame body 210, and the inner frame body 210 has a central axis, and the first axis a is the central axis. Optionally, the inner frame body 210 can be a cylindrical structure, and the first axis a is the central axis of the cylindrical structure. Alternatively, the inner frame body 210 can be a cuboid structure, the length direction of the cuboid structure is perpendicular to the bearing surface of the base 100, and the central axis of the cuboid structure is parallel to the length direction of the cuboid structure; the outer frame body 310 can be an arc-shaped columnar structure or other structures, as long as the outer frame body 310 is provided with corresponding grooves to cooperate with the inner frame body 210 to form the detection channel 400.

[0039] With this embodiment, the first axis a is directly the central axis of the inner frame body 210. During the rotation around the first axis a, the moving area of the first scanner 220 is small. Therefore, the inner frame body 210 can be set as a structure with a small floor area such as a cylindrical structure, further reducing the occupied space of the inner scanning assembly 200, and the base 100 can be set smaller, which is beneficial to further reducing the occupied space of the scanning device.

[0040] In an alternative embodiment, both the first scanner 220 and the second scanner 320 include millimeter-wave scanning antenna arrays, and the millimeter-wave scanning antenna arrays are arranged along the direction of the first axis a. Optionally, the first axis a is perpendicular to the supporting surface of the base 100. Therefore, the millimeter-wave scanning antenna array of the first scanner 220 is arranged along the height direction of the inner frame body 210, and the millimeter-wave scanning antenna array of the second scanner 320 is arranged along the height direction of the outer frame body 310. In this way, both the first scanner 220 and the second scanner 320 use millimeter waves in an array form and can scan different positions of the object to be inspected 500 along the direction of the first axis a respectively, expanding the scanning range and being beneficial to comprehensively scanning the object to be inspected 500.

[0041] Of course, in other embodiments, the first scanner and the second scanner can also include other forms of electromagnetic wave scanning antenna arrays arranged in other directions.

[0042] In an alternative embodiment, during the process of the object to be inspected 500 passing through the detection channel 400, the rotation direction of the first scanner 220 around the first axis a is the same as the rotation direction of the second scanner 320 around the first axis a.

[0043] In another embodiment, the direction in which the first scanner 220 rotates about the first axis a is opposite to the direction in which the second scanner 320 rotates about the first axis a. Refer to Figure 11 As shown, when the object to be inspected 500 just enters the detection channel 400, the first scanner 220 rotates in the first rotation direction to a position facing the front of the object to be inspected 500, and the second scanner 320 rotates in the second rotation direction to a position facing the front of the object to be inspected 500. At this time, the second scanner 320 is farther away from the object to be inspected 500, and the first scanner 220 and the second scanner 320 jointly scan the front of the object to be inspected 500; Refer to Figure 12 As shown, when the object to be inspected 500 passes to the middle position of the detection channel 400, the first scanner 220 continues to rotate in the first rotation direction to a position facing the left side of the object to be inspected 500, and the second scanner 320 rotates in the second rotation direction to a position facing the right side of the object to be inspected 500. At this time, the second scanner 320 is closer to the object to be inspected 500, and the first scanner 220 and the second scanner 320 respectively scan the left side and the right side of the object to be inspected 500; Refer to Figure 13 As shown, when the object to be inspected 500 is about to leave the detection channel 400, the first scanner 220 continues to rotate in the first rotation direction to a position facing the back of the object to be inspected 500, and the second scanner 320 rotates in the second rotation direction to a position facing the back of the object to be inspected 500. At this time, the second scanner 320 is farther away from the object to be inspected 500, and the first scanner 220 and the second scanner 320 jointly scan the back of the object to be inspected 500.

[0044] During the process of the object to be inspected 500 passing through the detection channel 400, the inner scanning assembly 200 and the outer scanning assembly 300 are respectively located on both sides of the object to be inspected 500. Therefore, the rotation directions of the first scanner 220 and the second scanner 320 are opposite, which can enable the first scanner 220 and the second scanner 320 to simultaneously scan the same position of the object to be inspected 500, such as the front and the back of the object to be inspected 500, making the scanning effect of the scanning device on the object to be inspected 500 more accurate and conducive to improving the scanning effect.

[0045] Optionally, the object to be inspected 500 can be a human body, and the first axis a is the central axis of the inner skeleton main body 210. Based on this situation, the first scanner 220 rotates on its own axis, while the second scanner 320 moves along an arc path, and the detection channel 400 is an arc channel. Among them, the central angle corresponding to the arc channel can be 90°. During the process of the human body passing through the arc channel, the first scanner 220 and the second scanner 320 keep rotating, and the scanning angles also keep changing. Refer to Figure 11 As shown, when the human body just enters the arc channel, the first scanner 220 scans the front of the human body from a 45° direction on the left side of the human body, and the second scanner 320 directly scans the human body from the front of the human body;Figure 12 As shown, when the human body passes to the middle position of the arc-shaped passage, the first scanner 220 scans the left side of the human body, and the second scanner 320 scans the right side of the human body; refer to Figure 13 As shown, when the human body passes to the exit of the arc-shaped passage, the first scanner 220 scans the back of the human body from a 45° direction on the left side of the human body, and the second scanner 320 directly scans the back of the human body from the back of the human body. During the whole process, since both the first scanner 220 and the second scanner 320 have a certain radiation angle, the entire area of the human body can be covered during the scanning process.

[0046] Of course, the central angle corresponding to the arc-shaped passage can also be other angles. Then, when the human body just enters the arc-shaped passage and is about to leave the arc-shaped passage, the first scanner 220 scans the front and back of the human body from other directions (directions other than 45°) on the left side of the human body respectively.

[0047] In an optional embodiment, the first scanner 220 can be rotated by manual action or an external driving mechanism.

[0048] In another embodiment, the inner scanning assembly 200 further includes a first driving mechanism 230. The first driving mechanism 230 is connected to the first scanner 220, and the first driving mechanism 230 drives the first scanner 220 to rotate around the first axis a relative to the inner frame main body 210. Optionally, when the first axis a passes through the first scanner 220, that is, when the first scanner 220 needs to rotate itself, the first driving mechanism 230 can directly be a first driving source 231 such as a motor or a motor that can provide rotational power. The first driving source 231 is directly connected to the first scanner 220, so as to drive the first scanner 220 to rotate relative to the inner frame main body 210.

[0049] Adopting this embodiment, the inner scanning assembly 200 directly sets the first driving mechanism 230 to drive the first scanner 220 to rotate. The first scanner 220 does not need to rely on external force to achieve rotation. Moreover, the first driving mechanism 230 can drive the first scanner 220 to rotate stably around the first axis a, which is beneficial to improving the scanning effect.

[0050] In an optional embodiment, the first driving mechanism 230 includes a first driving source 231 and a transmission assembly. The first driving source 231 can be a driving source such as a motor or a motor that can provide rotational power. The first driving source 231 is connected to the inner frame main body 210, and the output shaft of the first driving source 231 is connected to the first scanner 220 through the transmission assembly. In this way, when it is not convenient for the first driving source 231 to be directly connected to the first scanner 220, the transmission assembly is used to realize the transmission connection between the first driving source 231 and the first scanner 220, ensuring that the first driving source 231 can stably drive the first scanner 220 to rotate.

[0051] In an alternative embodiment, as Figure 3 shown, the transmission assembly includes a first rotating member 232, a second rotating member 234, and a first transmission belt 233. The first rotating member 232 is sleeved outside the output shaft of the first driving source 231. The second rotating member 234 is connected to the first scanner 220. The rotation axis of the second rotating member 234 is the first axis a. The first transmission belt 233 is sleeved outside the first rotating member 232 and the second rotating member 234, and the first transmission belt 233 cooperates with the first rotating member 232 and the second rotating member 234 respectively. When the first driving source 231 operates, it drives the first rotating member 232 to rotate. The first rotating member 232 drives the second rotating member 234 and the first scanner 220 to rotate around the first axis a through the first transmission belt 233. Optionally, the first scanner 220 and the second rotating member 234 may be directly connected; or, a first sheet metal part 250 is provided between the first scanner 220 and the second rotating member 234. The first sheet metal part 250 is connected to the first scanner 220 and the second rotating member 234 respectively, so that the first scanner 220 and the second rotating member 234 are indirectly connected.

[0052] Optionally, the first rotating member 232 and the second rotating member 234 may be pulleys, and the first transmission belt 233 is a belt, and the pulleys and the belt are in frictional cooperation; or, the first rotating member 232 and the second rotating member 234 may be sprockets, and the first transmission belt 233 may be a chain, and the sprockets and the chain may be in transmission cooperation through a tooth meshing structure. Of course, other cooperation structures may also be adopted between the first rotating member 232 and the first transmission belt 233, and between the second rotating member 234 and the first transmission belt 233.

[0053] By adopting this embodiment, the transmission assembly formed by the first rotating member 232, the first transmission belt 233, and the second rotating member 234 converts the rotational power of the first driving source 231 into the rotational power of the first scanner 220, ensuring that the first driving source 231 can stably drive the first scanner 220 to rotate.

[0054] Further optionally, the diameter of the first rotating member 232 is smaller than the diameter of the second rotating member 234. Thus, the rotation speed of the second rotating member 234 is lower than the rotation speed of the first rotating member 232, that is, the rotation speed of the first scanner 220 is lower than the speed of the output shaft of the first driving source 231. Compared with the scheme in which the first driving source 231 is directly connected to the first scanner 220, the rotation speed of the first scanner 220 is effectively reduced, avoiding the problem of poor scanning imaging effect caused by too fast scanning.

[0055] In an alternative embodiment, the second scanner 320 can be rotated by manual action or an external driving mechanism.

[0056] In another embodiment, the outer scanning assembly 300 further includes a second driving mechanism 330. The second driving mechanism 330 is connected to the second scanner 320, and the second driving mechanism 330 drives the second scanner 320 to rotate relative to the outer frame body 310 about the first axis a. Optionally, the second driving mechanism 330 may include a second driving source 331 and a rotating member. The second driving source 331 may be a driving source capable of generating rotational power, such as a motor or a motor. The rotating member is sleeved outside the output shaft of the second driving source 331, and the axis of the output shaft of the second driving source 331 is collinear with the first axis a. The second scanner 320 may be connected to the edge of the rotating member. During the process that the second driving source 331 drives the rotating member to rotate by a certain angle, the rotating member drives the second scanner 320 to rotate, so that the second scanner 320 realizes movement along an arc path.

[0057] With this embodiment, the outer scanning assembly 300 directly sets the second driving mechanism 330 to drive the second scanner 320 to rotate. The second scanner 320 does not need to rely on the outside to realize rotation. Moreover, the second driving mechanism 330 can drive the second scanner 320 to rotate stably about the first axis a, which is beneficial to improving the scanning effect.

[0058] In an alternative embodiment, as shown in Figure 4 and Figure 7 the second driving mechanism 330 includes an arc-shaped mounting plate 334 and a second driving source 331. The arc-shaped mounting plate 334 is disposed on the outer frame body 310, and the arc-shaped mounting plate 334 and the outer frame body 310 may be fixedly connected by welding, bonding or other means; the center of the arc-shaped mounting plate 334 passes through the first axis a, and the axis of the output shaft of the second driving source 331 deviates from the first axis a. In this embodiment, the arc-shaped mounting plate 334 is used to support the second scanner 320 and limit the movement direction of the second scanner 320. The second driving source 331 is connected to the second scanner 320, and the second driving source 331 is used to drive the second scanner 320 to move along the extending direction of the arc-shaped mounting plate 334.

[0059] Specifically, the second driving mechanism 330 further includes a transmission component. The output shaft of the second driving source 331 is connected to the transmission component, and the transmission component is connected to the second scanner 320. The output shaft of the second driving source 331 drives the second scanner 320 to move through the transmission component. The second scanner 320 is slidably connected to the arc-shaped mounting plate 334 along the extending direction of the arc-shaped mounting plate 334, and the transmission component cooperates with the arc-shaped mounting plate 334. Therefore, when the second driving source 331 works, it drives the transmission component to drive the second scanner 320 to move along the extending direction of the arc-shaped mounting plate 334. Optionally, the second scanner 320 may be directly slidably connected to the arc-shaped mounting plate 334, or the two may also be indirectly slidably connected.

[0060] With this embodiment, under the driving action of the transmission component, the second driving source 331 does not directly drive the second scanner 320 to rotate on its own axis. Instead, through the cooperation of the transmission component and the arc-shaped mounting plate 334, the process of driving the second scanner 320 to move along the extension direction of the arc-shaped mounting plate 334 is realized.

[0061] In a further embodiment, referring to Figure 6 and Figure 8 as shown, the transmission component includes a second transmission belt 333, a third rotating member 332, and a pressing plate 337. The second transmission belt 333 is sleeved outside the arc-shaped mounting plate 334 and the third rotating member 332. Therefore, the second transmission belt 333 also extends along the extension direction of the arc-shaped mounting plate 334, that is, the arc direction. The second transmission belt 333 cooperates with the arc-shaped mounting plate 334 and the third rotating member 332 respectively. Therefore, when the third rotating member 332 rotates, it can drive the second transmission belt 333 to move relative to the arc-shaped mounting plate 334. The third rotating member 332 is sleeved outside the output shaft of the second driving source 331, and the output shaft of the second driving source 331 can directly drive the third rotating member 332 to rotate on its own axis; moreover, the second scanner 320 is rotationally connected to the third rotating member 332. Optionally, the second scanner 320 and the third rotating member 332 can be directly rotationally connected, or they can also be indirectly rotationally connected.

[0062] The pressing plate 337 is connected to the arc-shaped mounting plate 334, and the pressing plate 337 presses against the second transmission belt 333, so that the position of the second transmission belt 333 relative to the arc-shaped mounting plate 334 is fixed. Therefore, when the second driving source 331 works, the driving position of the second transmission belt 333 is fixed, and only the third rotating member 332 can move relative to the second transmission belt 333. That is to say, the third rotating member 332 not only rotates on its own axis but also moves along an arc path. Since the second scanner 320 is rotationally connected to the third rotating member 332, the second scanner 320 only follows the third rotating member 332 to move along the arc path and does not follow the third rotating member 332 to rotate on its own axis.

[0063] Optionally, the third rotating member 332 can be a pulley and the second transmission belt 333 can be a belt; or, the third rotating member 332 can be a sprocket and the second transmission belt 333 can be a chain. The sprocket and the chain can achieve transmission cooperation through a tooth-engagement structure. Of course, other cooperation structures can also be adopted between the third rotating member 332 and the second transmission belt 333.

[0064] Thus, when the second driving source 331 operates, it drives the third rotating member 332 to rotate self - sufficiently. The third rotating member 332 cooperates with the second transmission belt 333, causing a change in the relative position between the third rotating member 332 and the second transmission belt 333. In this embodiment, the pressing plate 337 presses against the second transmission belt 333, and the position of the second transmission belt 333 relative to the arc - shaped mounting plate 334 is fixed. Therefore, under the cooperation of the third rotating member 332 and the second transmission belt 333, the third rotating member 332 drives the second scanner 320 to move relative to the second transmission belt 333 along the extending direction of the arc - shaped mounting plate 334, that is, the second scanner 320 moves along an arc - shaped path around the first axis a.

[0065] By adopting this embodiment, with the structure in which the arc - shaped mounting plate 334, the second transmission belt 333, the second driving source 331, the third rotating member 332 and the pressing plate 337 cooperate, the second scanner 320 is enabled to move along an arc - shaped path around the first axis a. Moreover, the second driving source 331 does not need to drive the entire second transmission belt 333 to transmit. It only needs to drive the third rotating member 332 to move, and then the third rotating member 332 drives the second scanner 320 to move, reducing the driving force required by the second driving source 331, relieving the pressure on the second driving source 331, and also being beneficial to realizing the stable movement of the second scanner 320.

[0066] Certainly, in other embodiments, the positions of the third rotating member 332 and the second driving source 331 can be fixed relative to the arc - shaped mounting plate 334, that is, the third rotating member 332 and the second driving source 331 do not move along the extending direction of the arc - shaped mounting plate 334. Under the cooperation of the third rotating member 332 and the second transmission belt 333, the second transmission belt 333 transmits relative to the arc - shaped mounting plate 334, and the second transmission belt 333 directly drives the second scanner 320 to move along the extending direction of the arc - shaped mounting plate 334.

[0067] In the solution of this application, as Figure 4 、 Figure 7 and Figure 9 shown, the outer scanning assembly 300 further includes an arc - shaped guide rail 341, a first carrier plate 343 and a sliding member 342. The arc - shaped guide rail 341 is arranged on the arc - shaped mounting plate 334, and the arc - shaped guide rail 341 and the arc - shaped mounting plate 334 can be fixedly connected by welding, bonding or other means; the third rotating member 332 is rotatably arranged on the first carrier plate 343, the sliding member 342 is arranged on the first carrier plate 343, and the first carrier plate 343 is connected to the second scanner 320.

[0068] Optionally, the first carrier plate 343 is provided with a first cylinder, and the sliding member 342 can be sleeved outside the first cylinder, so that the sliding member 342 can rotate relative to the first carrier plate 343; the first carrier plate 343 and the second scanner 320 can be directly connected or indirectly connected. Further optionally, the outer scanning assembly 300 further includes a second sheet metal part 360 and a connecting member 370. The first carrier plate 343 is connected to the connecting member 370, a first part of the second sheet metal part 360 is connected to the connecting member 370, and a second part of the second sheet metal part 360 is connected to the second scanner 320.

[0069] The center of the arc of the arc-shaped guide rail 341 passes through the first axis a. The arc-shaped guide rail 341 is provided with a guide groove, and the extending direction of the guide groove is the same as the extending direction of the arc-shaped mounting plate 334, that is, the guide groove extends along the arc direction of the arc-shaped mounting plate 334. The sliding member 342 extends into the guide groove, and the sliding member 342 is in sliding fit with the guide groove. In this embodiment, the outer scanning assembly 300 is provided with the arc-shaped guide rail 341 and the sliding member 342 to guide the movement mode of the second scanner 320, ensuring that the second scanner 320 accurately moves along the arc path around the first axis a.

[0070] Optionally, the sliding member 342 can be a slider or a pulley. The structure of the sliding member 342 is not specifically limited in the embodiment of the present application. When the sliding member 342 is a pulley, the pulley is rotatably arranged on the first carrier plate 343 to ensure that the pulley can roll relative to the first carrier plate 343. In this way, the cooperation form between the pulley and the guide groove is a rolling friction fit, which is beneficial to reducing the friction force between the two, ensuring that the pulley moves smoothly relative to the arc-shaped guide rail 341, and ensuring the smooth movement of the second scanner 320.

[0071] In an optional embodiment, the number of the guide grooves is one, and the guide groove can be arranged on the lower end surface of the arc-shaped guide rail 341. The number of the sliding members 342 is at least one, and the guide groove is in sliding fit with at least one sliding member 342.

[0072] In another embodiment, the arc-shaped guide rail 341 has opposite first and second side surfaces. The number of the guide grooves is at least two, and two of the guide grooves are respectively arranged on the first and second side surfaces. The number of the sliding members 342 is at least two, and each guide groove is in sliding fit with at least one sliding member 342. Optionally, as Figure 9 shown, each guide groove is in sliding fit with two sliding members 342.

[0073] In this embodiment, at least two groups of guide grooves and sliding members 342 are used to apply guidance to the second scanner 320 from the opposite sides of the arc-shaped guide rail 341, further ensuring that the second scanner 320 accurately moves along the arc path around the first axis a.

[0074] In an alternative embodiment, the third rotating member 332 can be directly rotatably disposed on the first carrier plate 343.

[0075] In another embodiment, the outer scanning assembly 300 further includes a second carrier plate 344 and a connecting block 345. The second carrier plate 344 is connected to the first carrier plate 343 through the connecting block 345. Wherein, the second carrier plate 344 and the connecting block 345, and the connecting block 345 and the first carrier plate 343 can be fixedly connected by welding, bonding or other means; the third rotating member 332 is rotatably disposed on the second carrier plate 344, and the second driving source 331 and the third rotating member 332 are respectively located on opposite sides of the second carrier plate 344. The first carrier plate 343 is provided with an opening, and the second carrier plate 344 and the connecting block 345 form a groove, and the groove communicates with the opening, and the groove and the opening together form a receiving space 346 for receiving the second driving source 331. Optionally, the number of the connecting blocks 345 is two, and the two connecting blocks 345 are respectively located on both sides of the opening, and the two connecting blocks 345 and the second carrier plate 344 form a groove. Optionally, the second driving mechanism 330 further includes a coupling 332a, and the third rotating member 332 is connected to the output shaft of the second driving source 331 through the coupling 332a, and the second carrier plate 344 is provided with a through hole, and the coupling 332a penetrates through the through hole.

[0076] By adding the second carrier plate 344 and the connecting block 345, an installation basis is provided for the third rotating member 332 and the second driving source 331. Moreover, the third rotating member 332 and the second driving source 331 are respectively located on opposite sides of the second carrier plate 344, which is beneficial to improving the installation stability of the third rotating member 332 and the second driving source 331; in addition, the second carrier plate 344, the connecting block 345 and the first carrier plate 343 together form a receiving space 346 to place the second driving source 331, which can not only protect the second driving source 331, but also, on the basis of ensuring the connection between the output shaft of the second driving source 331 and the third rotating member 332, increase the protruding height of the third rotating member 332 relative to the first carrier plate 343, so as to generate a height difference between the third rotating member 332 and the sliding member 342, and further meet the need of the height difference between the second transmission belt 333 and the arc-shaped guide rail 341.

[0077] In an alternative embodiment, refer to Figure 7 and Figure 9As shown in the figure, the outer scanning assembly 300 further includes a first guide wheel 335 and a second guide wheel 336. The first guide wheel 335 and the second guide wheel 336 are rotatably arranged on the second bearing plate 344. The first guide wheel 335, the second guide wheel 336 and the third rotating member 332 are located on the same side of the second bearing plate 344, and the first guide wheel 335 and the second guide wheel 336 are respectively located on both sides of the third rotating member 332. The second transmission belt 333 is respectively engaged with the first guide wheel 335, the third rotating member 332 and the second guide wheel 336. Optionally, the second bearing plate 344 may be provided with two second cylinders, and the first guide wheel 335 and the second guide wheel 336 are respectively sleeved outside the two second cylinders, so as to realize the rotation of the first guide wheel 335 and the second guide wheel 336 relative to the second bearing plate 344.

[0078] In this embodiment, by using the first guide wheel 335 and the second guide wheel 336, the transmission direction of the second transmission belt 333 is guided, and the matching degree between a part of the second transmission belt 333 and the third rotating member 332 is increased. Thus, when the second driving source 331 drives the third rotating member 332 to rotate, the third rotating member 332 can drive the second scanner 320 to move more stably.

[0079] Of course, in other embodiments, the outer scanning assembly 300 may not be provided with the first guide wheel 335 and the second guide wheel 336, and the second transmission belt 333 is only engaged with the third rotating member 332 and the arc-shaped mounting plate 334.

[0080] In an alternative embodiment, the first scanner 220 may be disposed outside the inner frame body 210. In another embodiment, as shown in the figure Figure 3 As shown in the figure, the inner frame body 210 is provided with a first slot 211. The first slot 211 faces the outer scanning assembly 300, and the first scanner 220 is disposed in the first slot 211. In this embodiment, the first scanner 220 is adopted in a built-in manner, which avoids occupying the space outside the inner frame body 210, is beneficial to reducing the occupied space of the inner scanning assembly 200, and further beneficial to reducing the occupied space of the scanning device.

[0081] In an alternative embodiment, the inner scanning assembly 200 further includes a first wave-transmitting structure 240. The first slot 211 is provided with a first slot opening, and the first wave-transmitting structure 240 is disposed at the first slot opening and is opposite to the first scanner 220. That is to say, by closing the first slot opening through the first wave-transmitting structure 240, it is beneficial to improve the appearance performance of the inner scanning assembly 200. Optionally, the first scanner 220 scans by using millimeter waves with a wavelength of 1 mm - 10 mm.

[0082] In this embodiment, when the electromagnetic wave emitted by the first scanner 220 exits the first notch, it will pass through the first wave-transmitting structure 240. The first wave-transmitting structure 240 is used to filter the electromagnetic wave emitted by the first scanner 220, reducing waveform damage and facilitating the improvement of the accuracy of scanning imaging.

[0083] Of course, in other embodiments, the first scanner 220 can use electromagnetic waves of other wavelengths for scanning. The first wave-transmitting structure 240 may not be provided in the inner scanning assembly 200, and the electromagnetic wave emitted by the first scanner 220 directly scans the object to be inspected 500.

[0084] In an alternative embodiment, the second scanner 320 can be disposed outside the outer frame body 310. In another embodiment, as shown in Figure 4 The outer frame body 310 is provided with a second slot 311. The second slot 311 faces the inner scanning assembly 200, and the second scanner 320 is disposed in the second slot 311. In this embodiment, the second scanner 320 is adopted in a built-in manner, avoiding occupying the space outside the outer frame body 310, which is beneficial to reducing the occupied space of the outer scanning assembly 300, and further beneficial to reducing the occupied space of the scanning device.

[0085] In an alternative embodiment, the outer scanning assembly 300 further includes a second wave-transmitting structure 350. The second slot 311 is provided with a second notch, and the second wave-transmitting structure 350 is disposed at the second notch and is opposite to the second scanner 320. That is to say, closing the second notch through the second wave-transmitting structure 350 is beneficial to improving the appearance performance of the outer scanning assembly 300. Optionally, the second scanner 320 scans using millimeter waves with a wavelength of 1 mm - 10 mm.

[0086] In this embodiment, when the electromagnetic wave emitted by the second scanner 320 exits the second notch, it will pass through the second wave-transmitting structure 350. The second wave-transmitting structure 350 is used to filter the electromagnetic wave emitted by the first scanner 220, reducing waveform damage and facilitating the improvement of the accuracy of scanning imaging.

[0087] Of course, in other embodiments, the second scanner 320 can use electromagnetic waves of other wavelengths for scanning. The second wave-transmitting structure 350 may not be provided in the outer scanning assembly 300, and the electromagnetic wave emitted by the second scanner 320 directly scans the object to be inspected 500.

[0088] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A scanning device, characterized in that, it includes: a base (100); an inner scanning component (200), the inner scanning component (200) includes an inner frame main body (210) and a first scanner (220), the inner frame main body (210) is arranged on the base (100), and the first scanner (220) is rotatably arranged on the inner frame main body (210) around a first axis (a); an outer scanning component (300), the outer scanning component (300) includes an outer frame main body (310) and a second scanner (320), the outer frame main body (310) is arranged on the base (100), and the outer frame main body (310) is provided with a groove, the groove is opposite to the inner scanning component (200), so as to form a detection channel (400) between the outer frame main body (310) and the inner frame main body (210), the second scanner (320) is movably arranged on the outer frame main body (310), and the second scanner (320) can rotate around the first axis (a) relative to the outer frame main body (310).

2. The scanning device according to claim 1, characterized in that, the inner frame main body (210) has a central axis, and the first axis (a) is the central axis; and / or, both the first scanner (220) and the second scanner (320) include a millimeter-wave scanning antenna array arranged along the direction of the first axis (a).

3. The scanning device according to claim 1, characterized in that, the rotation direction of the first scanner (220) around the first axis (a) is opposite to the rotation direction of the second scanner (320) around the first axis (a).

4. The scanning device according to claim 1, characterized in that, the inner scanning component (200) further includes a first driving mechanism (230), the first driving mechanism (230) is connected to the first scanner (220), and the first driving mechanism (230) drives the first scanner (220) to rotate around the first axis (a) relative to the inner frame main body (210); and / or, the outer scanning component (300) further includes a second driving mechanism (330), the second driving mechanism (330) is connected to the second scanner (320), and the second driving mechanism (330) drives the second scanner (320) to rotate around the first axis (a) relative to the outer frame main body (310).

5. The scanning device according to claim 4, characterized in that, the first driving mechanism (230) includes a first driving source (231) and a transmission component, the first driving source (231) is connected to the inner frame main body (210), and the output shaft of the first driving source (231) is connected to the first scanner (220) through the transmission component.

6. The scanning device according to claim 5, characterized in that, The transmission assembly includes a first rotating member (232), a second rotating member (234), and a first transmission belt (233). The first rotating member (232) is sleeved outside the output shaft of the first driving source (231). The second rotating member (234) is connected to the first scanner (220). The first transmission belt (233) is sleeved outside the first rotating member (232) and the second rotating member (234), and the first transmission belt (233) cooperates with the first rotating member (232) and the second rotating member (234) respectively. When the first driving source (231) works, it drives the first rotating member (232) to rotate. The first rotating member (232) drives the second rotating member (234) and the first scanner (220) to rotate around the first axis (a) through the first transmission belt (233).

7. The scanning device according to claim 4, wherein, the second driving mechanism (330) includes an arc-shaped mounting plate (334), a second driving source (331), and a transmission component. The arc-shaped mounting plate (334) is disposed on the outer side frame body (310). The center of the arc-shaped mounting plate (334) passes through the first axis (a). The output shaft of the second driving source (331) is connected to the second scanner (320) through the transmission component. The second scanner (320) is slidably connected to the arc-shaped mounting plate (334) along the extending direction of the arc-shaped mounting plate (334), and the transmission component cooperates with the arc-shaped mounting plate (334). When the second driving source (331) works, it drives the transmission component to drive the second scanner (320) to move along the extending direction of the arc-shaped mounting plate (334).

8. The scanning device according to claim 7, wherein, the transmission component includes a second transmission belt (333), a third rotating member (332), and a pressing plate (337). The second transmission belt (333) is sleeved outside the arc-shaped mounting plate (334) and the third rotating member (332), and the second transmission belt (333) cooperates with the arc-shaped mounting plate (334) and the third rotating member (332) respectively. The third rotating member (332) is sleeved outside the output shaft of the second driving source (331), and the second scanner (320) is rotatably connected to the third rotating member (332). The pressing plate (337) is connected to the arc-shaped mounting plate (334), and the pressing plate (337) abuts against the second transmission belt (333). When the second driving source (331) works, it drives the third rotating member (332) to rotate. Under the cooperation of the third rotating member (332) and the second transmission belt (333), the third rotating member (332) drives the second scanner (320) to move along the extending direction of the arc-shaped mounting plate (334).

9. The scanning device according to claim 8, wherein, The outer scanning assembly (300) further includes an arc-shaped guide rail (341), a first carrier plate (343), and a sliding member (342). The arc-shaped guide rail (341) is disposed on the arc-shaped mounting plate (334). The third rotating member (332) is rotatably disposed on the first carrier plate (343). The sliding member (342) is disposed on the first carrier plate (343), and the first carrier plate (343) is connected to the second scanner (320). The arc-shaped guide rail (341) is provided with a guide groove. The extending direction of the guide groove is the same as the extending direction of the arc-shaped mounting plate (334). The sliding member (342) extends into the guide groove, and the sliding member (342) is in sliding fit with the guide groove.

10. The scanning device according to claim 9, wherein, the arc-shaped guide rail (341) is provided with a first side surface and a second side surface facing away from each other. The number of the guide grooves is at least two. Two of the guide grooves are respectively disposed on the first side surface and the second side surface. The number of the sliding members (342) is at least two. Each of the guide grooves is in sliding fit with at least one of the sliding members (342).

11. The scanning device according to claim 9, wherein, the outer scanning assembly (300) further includes a second carrier plate (344) and a connecting block (345). The second carrier plate (344) is connected to the first carrier plate (343) through the connecting block (345). The third rotating member (332) is rotatably disposed on the second carrier plate (344), and the second driving source (331) and the third rotating member (332) are respectively located on two opposite sides of the second carrier plate (344). The first carrier plate (343) is provided with an opening. The second carrier plate (344) and the connecting block (345) form a groove. The groove communicates with the opening, and the groove and the opening jointly form a receiving space (346) for receiving the second driving source (331).

12. The scanning device according to claim 11, wherein, the outer scanning assembly (300) further includes a first guide wheel (335) and a second guide wheel (336). The first guide wheel (335) and the second guide wheel (336) are both rotatably disposed on the second carrier plate (344). The first guide wheel (335), the second guide wheel (336), and the third rotating member (332) are located on the same side of the second carrier plate (344), and the first guide wheel (335) and the second guide wheel (336) are respectively located on two sides of the third rotating member (332). The second transmission belt (333) is respectively in cooperation with the first guide wheel (335), the third rotating member (332), and the second guide wheel (336).

13. The scanning device according to claim 1, wherein, The inner frame body (210) is provided with a first slot (211), the first slot (211) faces the outer scanning assembly (300), and the first scanner (220) is disposed in the first slot (211); And / or, the outer frame body (310) is provided with a second slot (311), the second slot (311) faces the inner scanning assembly (200), and the second scanner (320) is disposed in the second slot (311).

14. The scanning device according to claim 13, wherein, the inner scanning assembly (200) further includes a first wave-transmitting structure (240), the first slot (211) is provided with a first notch, the first wave-transmitting structure (240) is disposed at the first notch, and the first wave-transmitting structure (240) faces the first scanner (220); and / or, the outer scanning assembly (300) further includes a second wave-transmitting structure (350), the second slot (311) is provided with a second notch, the second wave-transmitting structure (350) is disposed at the second notch, and the second wave-transmitting structure (350) faces the second scanner (320).

Images