WO2020042330A1

WO2020042330A1 - Three-dimensional security check device and rotary base thereof

Info

Publication number: WO2020042330A1
Application number: PCT/CN2018/113129
Authority: WO
Inventors: 汤俊; 祁春超; 刘志
Original assignee: 深圳市华讯方舟太赫兹科技有限公司; 华讯方舟科技有限公司
Priority date: 2018-08-30
Filing date: 2018-10-31
Publication date: 2020-03-05
Also published as: CN209387899U

Abstract

A three-dimensional security check device (100) and a rotary base (70) thereof. The three-dimensional security check device (100) comprises a door frame assembly (10), a scanning assembly (40), a driving mechanism (20), and a rotary base (70), the driving mechanism (20) being provided at the top of the door frame assembly (10) and connected to an upper cross beam (41) of the scanning assembly (40); the rotary base (70) comprises a mounting bottom plate (162) and a rotation support assembly (30), the mounting bottom plate (162) being provided at the bottom of the door frame assembly (10), the rotation support assembly (30) being provided on the mounting bottom plate (162) corresponding to the driving mechanism (20) and connected to the a lower cross beam (42) of the scanning assembly (40); and the door frame assembly (10) is provided with at least two first limiting switches (13), the at least two first limiting switches (13) being used for limiting the range of rotation angle of the scanning assembly (40). The driving mechanism (20) and the rotation support assembly (30) are respectively provided at two ends of the scanning assembly (40), and the first limiting switches (13) are provided to rationally limit the range of rotation of the scanning assembly (40), enabling the scanning assembly (40) to be sufficiently supported, providing a rational arrangement of the whole device, and saving energy.

Description

Three-dimensional security inspection equipment and its rotating base

[Technical Field]

The present application relates to the technical field of security inspection equipment, in particular to a three-dimensional security inspection equipment and a rotating base thereof.

【Background technique】

In recent years, safety issues have increasingly attracted the attention of people around the world. With the improvement of safety management, security inspection equipment has been widely used in domestic and foreign airports, customs, high-speed rail stations and other important occasions. Human security inspection equipment has also gradually developed from manual detection by metal detectors. The security inspection equipment with 3D scanning and stereo imaging functions has been widely used due to its powerful working efficiency and high accuracy. The structural layout of each component of the existing security inspection equipment is unreasonable, the rotation support effect on its internal scanning components is poor, the efficiency is low, the structure is complicated, and energy conservation is not conducive to the vigorous promotion of security inspection equipment.

[Application content]

The application provides a three-dimensional security inspection device and a rotating base thereof, which can enable the scanning component to be fully supported, simplify its own structure, make the overall layout more reasonable, and save energy.

In order to solve the above technical problem, a technical solution adopted in the present application is to provide a three-dimensional security inspection device. The three-dimensional security inspection device includes a door frame component, a scanning component, a driving mechanism, and a rotating base. The scanning component includes an upper beam, a lower beam, and two antenna arms respectively connected to one end of the upper beam and the lower beam. The driving mechanism is provided on the top of the door frame assembly. Connected to the upper beam; the rotating base includes a mounting base and a rotation support assembly, the mounting base is provided at the bottom of the door frame assembly, and the corresponding drive mechanism of the rotation support assembly is provided on the mounting base and connected to the lower beam; the door frame assembly is provided with at least two first A limit switch, at least two limit switches are used to limit the rotation angle range of the scanning component; wherein, the driving mechanism drives the scanning component to rotate within the angle range limited by the at least two first limit switches under the support of the rotation support component. .

In order to solve the above technical problem, a technical solution adopted in the present application is to provide a rotating base. The rotating base comprises a mounting base, a rotary support assembly and a plurality of concentric adjustment components; the rotary support assembly is slidably arranged on the mounting base and includes a mounting seat, a bearing and a connecting shaft. The mounting seat has a receiving groove, and the bearing outer ring is fixed on On the accommodating groove, the connecting shaft is connected to the bearing inner ring, and the connecting shaft is also used to connect with other components to support its rotation; multiple concentric adjustment components are connected to the mounting base plate, and multiple concentric adjustment components are symmetrically disposed on the mounting seat. The peripheral side is used to push the mounting base to adjust the position of the mounting base on the mounting base plate.

In order to solve the above technical problem, a technical solution adopted in the present application is to provide a three-dimensional security inspection device. The three-dimensional security inspection device includes a door frame component, a scanning component, a driving mechanism, and a rotating base. The scanning component includes an upper beam, a lower beam, and two antenna arms respectively connected to one end of the upper beam and the lower beam. The driving mechanism is provided on the top of the door frame assembly. Connected to the upper beam; the rotating base includes a mounting base and a rotation support assembly. The mounting base is disposed at the bottom of the door frame assembly. The corresponding rotation drive assembly is provided on the mounting base and connected to the lower beam. The drive mechanism drives the scanning assembly to rotate. Rotate under the support of the support assembly.

The beneficial effect of the present application is that, different from the situation in the prior art, the present application provides a three-dimensional security inspection device and a rotating base thereof. The scanning mechanism is fully supported by arranging the driving mechanism and the rotation support component at both ends of the scanning component; separating the driving mechanism and the rotation support component simplifies the bottom structure of the 3D reconstruction device, and the overall mechanism layout is more reasonable; and By setting the first limit switch, the rotation range of the scanning component is reasonably limited to save energy.

[Brief Description of the Drawings]

In order to explain the technical solutions in the embodiments of the present application or the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without paying creative labor, where:

1 is a schematic structural diagram of a three-dimensional security inspection device according to an embodiment of the present application;

2 is a schematic structural diagram of a scanning component in the three-dimensional security inspection device shown in FIG. 1;

3 is a schematic structural diagram of a door frame in the three-dimensional security inspection device shown in FIG. 1;

4 is a schematic diagram of a partial structure of an area A in the three-dimensional security inspection device shown in FIG. 1;

5 is a schematic structural diagram of a first connecting frame and a driving mechanism in the three-dimensional security inspection device shown in FIG. 1;

6 is a schematic structural diagram of a driving mechanism and a second limit switch shown in FIG. 5;

7 is a schematic structural diagram of a second connection bracket, a rotation support mechanism, and a concentric adjustment component in the three-dimensional security inspection device shown in FIG. 1;

8 is an exploded schematic view of the mounting base plate, the rotary support mechanism, and the concentric adjustment assembly shown in FIG. 7;

FIG. 9 is a schematic structural diagram of the concentric adjustment component shown in FIG. 7; FIG.

10 is a schematic structural diagram of the mounting base shown in FIG. 7;

11 is a schematic structural diagram of a connecting shaft shown in FIG. 7;

12 is a schematic structural diagram of a standing component in the three-dimensional security inspection device shown in FIG. 1.

【detailed description】

In the following, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

Reference to "an embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they independent or alternative embodiments that are mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

Referring to FIG. 1, FIG. 1 is a schematic structural diagram of a three-dimensional security inspection device according to an embodiment of the present application.

With reference to FIG. 1 and FIG. 2, the three-dimensional security inspection device 100 includes a door frame assembly 10, a driving mechanism 20, a rotating base 70, and a scanning assembly 40. The driving mechanism 20 is disposed on the top of the door frame assembly 10. The rotation axis of the driving mechanism 20 and the upper beam 41 Connection; the rotating base 70 includes a mounting base plate 162 and a rotation support assembly 30. The mounting base plate 162 is disposed on the bottom of the door frame assembly 10, and the rotation support assembly 30 is provided on the mounting base plate 162 corresponding to the driving mechanism 20 and is connected to the lower beam 42; the scanning assembly 40 It includes an upper beam 41, a lower beam 42 and two antenna arms 43 respectively connected to one end of the upper beam 41 and the lower beam 42. The upper beam 41 is connected to the driving mechanism 20, and the lower beam 42 is connected to the rotary support assembly 30. At least two first limit switches 13 are provided. The at least two first limit switches 13 are used to limit the rotation angle range of the scanning assembly 40. The driving mechanism 20 drives the scanning assembly 40 under the support of the rotation support assembly 30. At least two first limit switches 13 rotate within an angular range.

In this application, the driving mechanism 20 is disposed on the top of the scanning assembly 40, and the rotation support assembly 30 is disposed on the bottom of the scanning assembly 40. The driving mechanism 20 and the rotation supporting assembly 30 are separated from each other, so that the bottom space of the three-dimensional security inspection device 100 is as much as possible. The floor is flat and concise, so that articles and people can enter and exit the three-dimensional security inspection device 100.

The scanning assembly 40 includes an upper beam 41, a lower beam 42, and two antenna arms 43 respectively connected to one end of the upper beam 41 and a lower beam 42. The upper beam 41, the lower beam 42 and the two antenna arms 43 form a rectangular frame structure, and An antenna array module (not shown) is installed on the antenna arm 43. The scanning emission directions of the two antenna array modules respectively located on the two antenna arms 43 are opposite, and when the object or human body is within the scanning range of the scanning component 40, the scanning component 40 Driven to scan the opposite sides of the object or human body simultaneously. For example, the scanning module is an integration of imaging elements such as a depth camera to acquire a three-dimensional image of an object, and upload and draw the image data into a three-dimensional image. Alternatively, the scanning module is an integration of a laser element or the like to detect an object or a human body to check whether an object or a human body carries a contraband. Of course, the scanning module can also be an integration of the above two components, which can simultaneously draw a three-dimensional image for the item and detect whether it carries a contraband. A human face recognition module and the like can also be integrated on the antenna arm 43. The above are schematic examples of the functions that the scanning component 40 can have, and the function of the scanning component 40 is not limited in this application.

For example, the antenna array module transmits a terahertz wave / millimeter wave signal, and the terahertz wave / millimeter wave signal has a certain transmission angle, which can cover more detection areas. Specifically, the area covered by the scan signal emitted by the antenna array module rotated by 90 ° is larger than 90 °. Furthermore, the scanning component 40 does not need to rotate a full circle. According to the size of the signal transmission angle and the distance between the antenna arm 43 and the object (or the area to be inspected), the rotation angle of the scanning component 40 is reasonably set so that the rotation angle of the scanning component 40 is less than 180 °. For example, in combination with the characteristics of the dual antenna arms 43, the driving mechanism 20 drives the scanning assembly 40 to rotate within a range of 110 °, so that the signals emitted by the two antenna arms 43 cover a 360 ° space to be inspected to detect the objects to be inspected in all directions. Or the driving mechanism 20 drives the scanning component 40 to rotate within a range of 120 °, 140 °, or 160 °, which can ensure that the signals emitted by the two antenna arms 43 cover a 360 ° inspection space. The rotation range of the scanning component 40 in this application No restrictions. Furthermore, the range of the rotation angle of the scanning unit 40 can be limited to a certain interval, thereby avoiding the waste of energy and time, and improving the working efficiency of the three-dimensional security inspection device 100.

In an embodiment, the door frame assembly 10 is provided with two first limit switches 13, and the two first limit switches 13 are used to limit a rotation angle range of the scanning assembly 40. For example, the two first limit switches 13 are disposed on the same side of the door frame assembly 10 to limit the two scanning arms 43 respectively. When one of the scanning arms 43 moves to the extreme position, a corresponding first limit position is triggered. The fast closing 11 is a trigger signal generated by the first limit switch 11. The controller of the three-dimensional security inspection device 100 receives the trigger signal and sends a shutdown signal to the driving mechanism 20 to stop rotating the scanning component 40. Alternatively, the two first limit switches 13 limit the same scanning arm 43. When the scanning arm 43 moves to the limit position, the corresponding first limit switch 13 is triggered. The first limit switch 11 here is, for example, a contact-type pressure limit switch. The first limit switch 11 is triggered by the pressure generated by the contact with the upper beam 41. Of course, the number of the first limit switches 13 may also be three, four, etc., which is not limited in this application.

Referring to FIG. 3, the door frame assembly 10 includes two door frames 11 and two side frames 12 respectively disposed opposite to each other. The door frame 11 is connected to the corresponding ends of the two side frames 12. For example, a detachable connection method such as a screw can be used to further quickly A three-dimensional frame structure is formed, and two first limit switches 13 can be respectively disposed on the two side frames 12. For example, the door frame 11 and the side frame 12 are prefabricated with each other to facilitate transportation and assembly, and the belts can be assembled on site after being transported to the construction site.

Specifically, the door frame 11 includes, for example, a first upper channel 110, a first lower channel 112, and a first supporting square channel 114 correspondingly connected to both ends of the first upper channel 110 and the first lower channel 112 to form a rectangular frame. Of course, reinforcing plates and the like are also provided at each connection position of the above-mentioned square joints, and the connection methods between the square joints are, for example, welding, and other plates may be used instead of the square joints, such as angle steel, I-beams, etc. More details.

The side frame 12 is, for example, similar to the structure of the door frame 11 to reduce the number of processing equipment for manufacturing the door frame 11 and the side frame 12 and further improve the yield. The side frame 12 includes a second upper channel 120, a second lower channel 122, and a second support square channel 124 corresponding to two ends of the second upper channel 120 and the second lower channel 122, forming a rectangular frame.

Referring to FIGS. 1 and 4, the first limit switch 13 is indirectly connected to the second upper through 120 through a mounting block 131 and an adjustment block 133, that is, the first limit switch 13 is connected to the adjustment block 133, and the adjustment block 133 is connected to the installation block. 131 is connected, and the mounting block 131 is connected to the second party pass 120. The mounting block 131 is provided with a first slotted hole 132, and the adjustment block 133 is provided with a second slotted hole 134. By adjusting the connection position of the first slotted hole 132 and the second upper through hole 120, and adjusting the second slotted hole The external connection between 134 and the mounting block is a position, and the installation position of the first limit switch 13 is fine-tuned. The axis direction of the first slotted hole 132 is perpendicular to the axis direction of the second slotted hole 134.

5 and 7, the three-dimensional security inspection device 100 further includes a first connection frame 14 and a second connection frame 16. The first connection frame 14 has a first overlap block 140 and a mounting top plate 142. The driving mechanism 20 is connected to the mounting top plate 142. The first connecting frame 14 is overlaid on the top of the door frame assembly 10 and fixedly connected to the door frame assembly 10 through the first overlapping block 140.

The second connecting frame 16 has a second overlapping block 160 and a mounting base plate 162. The rotation support assembly 30 is disposed on the mounting base plate 162. The second connecting frame 16 is connected to the bottom of the door frame assembly 10 through the second overlapping block 160 and communicates with the bottom of the door frame assembly 10. The door frame assembly 10 is fixedly connected.

With reference to FIG. 1, FIG. 3 and FIG. 5, the door frame 11 is connected to the corresponding end of the two side frames 12, and the second upper opening 120 protrudes from the first upper opening 110 to leave the safety of the first connecting frame 14. Turn space. The first connecting frame 14 has a double-layered frame structure. The first connecting frame 14 is overlapped on the first upper opening 110 through the first overlapping block 140. For example, the first connecting frame 14 is fixed to the door frame 11 by means of screws, etc. The top surface of the first connecting frame 14 is flush with the top surface of the second upper opening 120.

The first connecting frame 14 includes a first planar frame 141, a second planar frame 143, and a support column 144 that supports them at intervals. The mounting top plate 142 is connected to the center of the second planar frame 143, and the first overlapping block 140 is connected to Both ends of the second plane frame 143 are connected to the first party 110. The upper beam 41 is located between the first plane frame 141 and the second plane frame 143 and is connected to the driving mechanism 20, and the second plane frame 143 also has a mechanical limit function for the antenna arm 43. The first plane frame 141 may also be provided with electrical equipment such as a driver and a controller, so as to reasonably utilize the space between the first plane frame 141 and the second plane frame 143. The second plane frame 143 is used to cover the first plane frame 141. A decorative shell can also be provided on it. In another embodiment, the first limit switch 11 is also connected to the second plane frame 143. The installation position of the first limit switch 11 is not limited in this application, and the use effect can be achieved.

The driving mechanism 20 includes, for example, a reducer, a motor, and the like, and may be formed by connecting several independent components or integrating several components into one body. In the present application, the driving mechanism 20 is an intelligent servo integrated transmission integrated with a reducer, a motor, an encoder, and a sensor, so as to directly connect the driving mechanism 20 to the mounting top plate 142.

Referring to FIG. 6, at least two second limit switches 145 are connected to the mounting top plate 142. The at least two second limit switches 145 are disposed on the peripheral side of the driving mechanism 20 to further limit the rotation angle range of the scanning assembly 40. . The second limit switch 145 is, for example, a photoelectric sensor. An induction piece (not shown) is connected to the upper beam 41. The induction piece rotates with the upper beam 41. When the upper beam 41 rotates to the limit position, the sensor piece triggers the second limit The bit open light 145 and the second limit open light 145 generate a trigger signal. For example, the second limit switch 145 is a pre-limit switch. After the second limit switch 145 is triggered, the scanning component 40 starts to decelerate. Before the first limit switch 11 is triggered, the scanning component 40 has stopped rotating. A limit switch 11 is used as a limit limit switch to prevent the scanning assembly 40 from colliding with the first plane frame 141.

Referring to FIG. 1, FIG. 3 and FIG. 7, the second connecting frame 16 also has a frame structure and is disposed in a space surrounded by the bottom of the door frame 11 and the side frame 12. That is, the second connecting frame 16 is overlapped on the door frame 11 and the side frame 12 through the second overlapping block 160, and is connected to the door frame 11 and the side frame 12 by fasteners. In addition, there are foot cups and casters on the bottom four corners of the second connecting frame 16. The foot cups are used to support the three-dimensional security inspection device 100. The casters have two states. When the casters are in the first state, the casters support the three-dimensional security inspection device 100. The cup is suspended, and the three-dimensional security inspection device 100 can be pushed to shift its position. When the caster is in the second state, the caster is retracted, and the foot cup supports the three-dimensional security inspection device 100 to prevent the three-dimensional security inspection device 100 from moving at will.

Referring to FIG. 8, the rotation support assembly 30 is disposed on the mounting base plate 162 corresponding to the driving mechanism 20 and includes a mounting base 31, a bearing 32, and a connecting shaft 33. The connecting shaft 33 is rotatably connected to the mounting base 31 through the bearing 32, and the connecting shaft 33 and The lower cross beam 42 is connected.

Further, the rotating base 70 further includes a concentric adjustment component 50 connected to the mounting base plate 162 and symmetrically disposed on the peripheral side of the mounting base 31 for adjusting the position of the mounting base 31 on the mounting base plate 162 so as to connect The axis 33 is coaxial with the rotation axis of the driving mechanism 20, and the rotation support assembly 30 supports the scanning assembly 40 to rotate more smoothly, reducing power loss and extending the service life of the rotation support assembly 30 and the scanning assembly 40.

Specifically, the rotation support assembly 30 is slidably disposed on the mounting base plate 162, and the concentric adjustment assembly 50 limits the rotation support assembly 30 from the peripheral side thereof. The mounting base 31 has a receiving groove 310. The outer ring of the bearing 32 is fixed on the receiving groove 310. The connecting shaft 33 is connected to the inner ring of the bearing 32. The connecting shaft 33 is used for connecting with the lower cross beam 42 to support the scanning assembly 40 to rotate. Furthermore, a plurality of concentric adjustment assemblies 50 are symmetrically disposed on the peripheral side of the mounting base 31 for pushing against the mounting base 31 to adjust the position of the mounting base 31 on the mounting base plate 162.

The mounting base 31 is, for example, rectangular in shape as a whole, and a plurality of concentric adjusting assemblies 50 are symmetrically pushed against the four sides of the mounting base 31 to adjust the position of the mounting base 31 in two directions perpendicular to each other. For example, one concentric adjustment assembly 50 is disposed symmetrically on each side of the mounting base 31, or two concentric adjustment assemblies 50 are disposed on each side. When the concentric adjustment component 50 on one side of the mounting base 31 pushes it to move, the concentric adjusting component 50 on the other side gives up pushing against the mounting base 31 in order to adjust the position of the mounting base 31. After the position of the mounting base 31 is determined, a plurality of concentric adjustment components 50 on the peripheral side of the mounting base 31 abut on corresponding sides to limit the position of the mounting base 31.

Further, the mounting base plate 162 is provided with a threaded hole 163, and the mounting base 31 is provided with a through hole 312 corresponding to the threaded hole 163. The diameter of the through hole 312 is greater than the diameter of the threaded hole 163. The rotation support assembly 30 further includes a locking screw 34. And the washer 35, the locking screw 34 fixes the mounting base 31 on the mounting base plate 163 through the washer 35.

The position of the mounting base 31 is generally accurate, and the range of adjustment required is limited. Therefore, the position of the threaded hole 163 and the diameter of the through hole 312 are reasonably set. When the position of the mounting base 31 is fine-tuned, the threaded hole 163 is always adjusted. It is aligned with the through hole 312, and then the washer 35 is covered on the through hole 312, and then the locking screw 34 is connected to the threaded hole 163 through the washer 35 to fix the mounting seat 31 on the mounting base plate 162.

For example, through holes 312 are provided at the four corners of the mounting base 31, and corresponding screw holes 163 are provided on the mounting base plate 162. Furthermore, the mounting base 31 is further fastened to the mounting base plate 162 after being restrained from the peripheral side by a plurality of concentric adjustment assemblies 50. The through hole 312 and the threaded hole 163 may also be disposed at other positions, which are not limited in this application.

Referring to FIG. 9, the concentric adjustment assembly 50 includes an adjustment block 52 and an adjustment column 54. The adjustment block 52 is fixedly connected to the mounting base plate 162. For example, the mounting base plate 162 is provided with a mounting groove, and the adjustment block 52 is connected to the mounting groove. It may be directly fixedly connected to the surface of the mounting base plate 162. The adjustment post 54 is, for example, a screw. The adjustment post 54 is screwed with the adjustment block 52. The adjustment post 34 abuts on the mounting base 31. The adjustment posts 54 on both sides of the mounting base 31 are adjusted in a spiral manner to adjust the mounting base 31 on the mounting base plate 162 Position in the corresponding direction.

Specifically, the adjusting block 52 includes a fixing plate 520 and a support plate 522, and the fixing plate 520 is vertically connected to the support plate 522. The support plate 522 has a screw hole 524 that is screwed with the adjustment column 54. The fixing plate 520 is fixedly connected to the mounting base 162. on.

Further, the concentric adjustment assembly 50 further includes a fastener 56 for fastening the adjustment post 54 on the support plate 522. After the concentric adjustment component 50 adjusts the mounting seat 31, in order to avoid the adjustment post 54 from loosening, the adjustment post 54 is locked with the fastener 56 in cooperation with the support plate 522.

Optionally, the concentric adjustment assembly 50 further includes a pressure washer 58, which is connected to the adjustment post 54 and is disposed between the adjustment post 54 and the mounting seat 31. The radial size of the pressure washer 58 is larger than the adjustment post 54. To reduce the local pressure of the adjusting post 54 on the mounting seat 31.

Referring to FIGS. 8 to 11, the four corners of the mounting base 31 are provided with through holes 312, a step 311 is provided in the accommodation groove 310, and the outer ring of the bearing 32 is stopped on the side wall of the step 311 and the accommodation groove 310 so that The inner ring of the bearing 32 is suspended from the bottom wall of the accommodation groove 310. For example, the bearing 32 is a crossed roller bearing, which is in interference fit with the side wall of the accommodation groove 310 to tighten itself.

The connecting shaft 33 includes an integrated structure of a connecting plate 330 and a positioning shaft 332. The connecting plate 330 is fixedly connected to the side of the bearing 32 facing away from the mounting base plate 162, for example, using a screw connection. The positioning shaft 332 is a hollow shaft, for example. The inner ring of the bearing 32 extends toward the bottom wall of the accommodation groove 310. The connecting plate 330 also has a connection structure for connecting with other components, such as a screw hole, a positioning post, and the like, so as to facilitate connection with other components.

Furthermore, since the inner ring of the bearing 32 is suspended on the bottom wall of the receiving groove 310, the bottom wall of the receiving groove 310 cannot generate friction to the inner ring of the bearing 32, thereby ensuring the mobility between the inner and outer rings of the bearing 32. The connecting shaft 33 can be smoothly rotated relative to the mounting seat 22 with the inner ring of the bearing 32.

Optionally, a through hole 313 may be further formed on the bottom wall of the receiving groove 310, and a through hole 165 is correspondingly provided on the mounting base plate 162 to avoid the through hole 313. The arrangement of the through hole 313 and the through hole 165 not only reduces the weight, but also facilitates the positioning shaft 332 to extend outward through the through hole 313.

Referring to FIGS. 1 and 12, the three-dimensional security inspection device 100 further includes a standing assembly 60. The standing assembly 60 includes a standing plate 62 and two standing support bases 64. The two standing support bases 64 are connected to opposite ends of the second connection frame 16. The standing plate 62 is connected to two standing support bases 64 such that the lower cross beam 42 is located between the standing plate 62 and the connection plate 330.

Further, a pressure sensor is further provided on the standing plate 62, and the pressure sensor is used to detect whether the standing plate 62 carries an article. The pressure sensor detects that the pressure on the standing plate 62 becomes large, generates a trigger signal, and transmits the trigger signal to the controller of the three-dimensional reconstruction apparatus 100 to activate the three-dimensional reconstruction apparatus 100 to start working. Alternatively, an infrared sensor is provided on the antenna arm 43 to detect whether an object exists in the space between the two antenna arms 43.

Further, the three-dimensional reconstruction device 100 further includes a display (not shown), and the scanning component 40 transmits the acquired image data to the display, so that a worker can view a three-dimensional image or a perspective image of the article.

Referring to FIG. 1 again, in another embodiment, the three-dimensional security inspection device 100 may not be provided with a limit switch, and the rotation angle range of the scanning component 40 is 360 degrees.

That is, the upper beam 41 is disposed below the first connection frame 14 and the scanning component 40 does not interfere with the first connection frame 14; and the standing component 60 and the rotation support component 30 are nested so that the scanning component 40 is on the rotation support component It is rotated under the support of 30 and does not interfere with the standing assembly 60.

Referring to FIG. 8, a schematic diagram of an explosion structure of an embodiment of a rotating base provided in the present application.

With reference to FIGS. 7 and 8, the rotating base 70 includes a mounting base 162, a rotation support assembly 30, and a plurality of concentric adjustment assemblies 50. The rotation support assembly 30 is slidably disposed on the mounting base 162 and includes a mounting base 31 and a bearing. 32 and the connecting shaft 33, the mounting seat 31 has a receiving groove 310, the outer ring of the bearing 32 is fixed on the receiving groove 310, the connecting shaft 33 is connected with the inner ring of the bearing 32, and the connecting shaft 33 is also used for connecting with other components (such as the above implementation) The lower beam 42 in the example is connected to support its rotation; a plurality of concentric adjustment components 50 are connected to the mounting base plate 162, and a plurality of concentric adjustment components 50 are symmetrically disposed on the peripheral side of the mounting base 31 for pushing against the mounting base 31 The position of the mounting base 31 on the mounting base plate 162 is adjusted.

In the above embodiments, the structures of the mounting base plate 162, the rotation support assembly 30, and the plurality of concentric adjustment assemblies 50 have been described in detail, so they will not be repeated here.

Different from the situation in the prior art, the present application provides a three-dimensional security inspection device and a rotating base thereof. The scanning mechanism is fully supported by arranging the driving mechanism and the rotation support component at both ends of the scanning component; separating the driving mechanism and the rotation support component simplifies the bottom structure of the 3D reconstruction device, and the overall mechanism layout is more reasonable; and By setting the first limit switch, the rotation range of the scanning component is reasonably limited to save energy.

The terms “first” and “second” in the embodiments of the present application are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a system, product, or device that includes a series of components or units is not limited to the listed components or units, but optionally also includes unlisted components or units, or optionally includes those products or units. Other components or units inherent to the equipment. In the description of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless it is specifically and specifically defined otherwise.

The above are only examples of the present application, and thus do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of the application, or directly or indirectly applied to other related technologies The fields are equally included in the patent protection scope of this application.

Claims

A three-dimensional security inspection device, including:

Door frame assembly

The scanning component includes an upper beam, a lower beam, and two antenna arms respectively corresponding to the upper beam and one end of the lower beam;

A driving mechanism provided on the top of the door frame assembly and connected to the upper beam;

The rotating base includes a mounting base and a rotation support assembly, the mounting base is disposed at the bottom of the door frame assembly, and the rotation support assembly is disposed on the mounting base and connected to the lower cross beam corresponding to the driving mechanism;

The door frame assembly is provided with at least two first limit switches, and the at least two limit switches are used to limit a rotation angle range of the scanning assembly;

Wherein, the driving mechanism drives the scanning component to rotate within an angle range restricted by the at least two first limit switches under the support of the rotary support component.
The three-dimensional security inspection device according to claim 1, wherein the three-dimensional security inspection device further comprises a first connection frame and a second connection frame, the first connection frame has a first overlap plate and a mounting top plate, and the driving mechanism Connected with the installation top plate, the first connecting frame is overlapped with the top of the door frame assembly and fixedly connected with the door frame assembly through the first overlapping block;

The second connection frame has a second overlap plate and the mounting base plate, the rotation support assembly is disposed on the installation bottom plate, and the second connection frame is overlapped with the second connection block through the second overlap block. The bottom of the door frame assembly is fixedly connected with the door frame assembly.
The three-dimensional security inspection device according to claim 2, wherein at least two second limit switches are connected to the mounting top plate, and the at least two second limit switches are provided on a peripheral side of the driving mechanism, This further limits the range of the rotation angle of the scanning component.
The three-dimensional security inspection device according to claim 2, wherein the rotation support assembly includes a mounting base, a bearing, and a connecting shaft, the connecting shaft is used to connect with the lower beam, and the mounting base is provided on the mounting base plate The connecting shaft is rotatably connected to the mounting base through the bearing.
The three-dimensional security inspection device according to claim 4, wherein the rotating base further comprises a concentric adjustment component connected to the mounting base plate and symmetrically disposed on a peripheral side of the mounting base for adjustment The position of the mounting seat on the mounting base plate is such that the connecting shaft is coaxial with the rotation shaft of the driving mechanism.
The three-dimensional security inspection device according to claim 5, wherein the mounting base is provided with a threaded hole, and the mounting seat is provided with a through hole corresponding to the threaded hole, and the diameter of the through hole is larger than the threaded hole Diameter, the rotating base further includes a locking screw and a washer, and the locking screw fixes the mounting seat on the secure rotation base plate through the washer.
The three-dimensional security inspection device according to claim 5, wherein the concentric adjustment assembly includes an adjustment block and an adjustment column, the adjustment block is fixedly connected to the mounting base plate, and the adjustment column is spirally connected to the adjustment block. The adjusting post abuts on the mounting base, and the adjusting posts on two opposite sides of the mounting base are spirally adjusted to adjust the position of the mounting base on the mounting base.
The three-dimensional security inspection device according to claim 7, wherein the concentric adjustment adjustment assembly further comprises a fastener for fastening the adjustment post to the support plate.
The three-dimensional security inspection device according to claim 8, wherein the concentric adjustment assembly further comprises a pressure washer, the pressure washer is connected to the adjustment post, and is disposed between the adjustment post and the mounting base The radial dimension of the pressure washer is larger than the radial dimension of the adjusting post.
The rotating base according to claim 8, wherein the connecting shaft comprises a connecting disk and a positioning shaft of an integrated structure, the positioning shaft is cooperatively connected with the bearing inner ring, and the connecting disk faces away from the bearing inner ring One side of the mounting base plate is fixedly connected, and the bottom beam is connected to the other side of the bearing disk.
The three-dimensional security inspection device according to claim 10, wherein the three-dimensional security inspection device further comprises a standing assembly, the standing assembly comprising a standing plate and two standing support bases, the two standing support bases being connected to the second At opposite ends of the connecting frame, the standing plate is connected to the two standing support seats, so that the bottom beam is located between the standing plate and the connection plate.
The three-dimensional security inspection device according to claim 2, wherein the first connection frame includes a first plane frame, a second plane frame, and a support column that supports the first plane frame and the second plane frame at intervals, The mounting top plate is connected to the second plane frame, and the upper beam is located between the first plane frame and the second plane frame.
A rotating base comprising: a mounting base plate;

The rotation support assembly is slidably disposed on the mounting base plate and includes a mounting seat, a bearing, and a connecting shaft. The mounting seat has a receiving groove, and the bearing outer ring is fixed on the receiving groove. A shaft is connected to the bearing inner ring, and the connecting shaft is also used to connect with other components to support its rotation;

A plurality of concentric adjustment components are connected to the mounting base, and a plurality of the concentric adjustment components are symmetrically disposed on a peripheral side of the mounting base, and are used to push the mounting base to adjust the mounting base on the mounting base. On location.
The rotary base according to claim 13, wherein the mounting base is provided with a screw hole, and the mounting base is provided with a through hole corresponding to the screw hole, and the diameter of the through hole is larger than that of the screw hole. In diameter, the rotating base further includes a locking screw and a washer, and the locking screw fixes the mounting seat on the secure rotation base plate through the washer.
The rotating base according to claim 13, wherein the concentric adjustment assembly includes an adjustment block and an adjustment column, the adjustment block is fixedly connected to the mounting base plate, the adjustment column is spirally connected with the adjustment block, and An adjustment post abuts on the mounting base, and the adjustment posts on two opposite sides of the mounting base are spirally adjusted to adjust the position of the mounting base on the mounting base.
The rotating base according to claim 15, wherein the concentric adjustment adjustment assembly further comprises a fastener for fastening the adjustment post to the support plate.
The rotating base according to claim 15, wherein the concentric adjustment assembly further comprises a pressure washer, the pressure washer is connected to the adjustment post, and is disposed between the adjustment post and the mounting seat. Meanwhile, the radial dimension of the pressure washer is larger than the radial dimension of the adjustment post.
The rotating base according to claim 13, wherein the connecting shaft comprises a connecting disk and a positioning shaft of an integrated structure, the positioning shaft is cooperatively connected with the bearing inner ring, and the connecting disk faces away from the bearing inner ring One side of the mounting base plate is fixedly connected, and the bottom beam is connected to the other side of the bearing disk.
A three-dimensional security inspection device, including:

Door frame assembly

The scanning component includes an upper beam, a lower beam, and two antenna arms respectively corresponding to the upper beam and one end of the lower beam;

A driving mechanism provided on the top of the door frame assembly and connected to the upper beam;

The rotating base includes a mounting base and a rotation support assembly, the mounting base is disposed at the bottom of the door frame assembly, and the rotation support assembly is disposed on the mounting base and connected to the lower cross beam corresponding to the driving mechanism;

Wherein, the driving mechanism drives the scanning component to rotate under the support of the rotary support component.
The three-dimensional security inspection device according to claim 19, wherein the rotating base further comprises a concentric adjustment component connected to the mounting base plate and symmetrically disposed on a peripheral side of the mounting base for adjustment The position of the mounting seat on the mounting base plate.