Foreign body detection device

Abstract

The present invention relates to a sole foreign body detection device, comprising a shell, a loading platform is arranged on the top of the shell; a bearing assembly, the bearing assembly is arranged in the shell, the bearing assembly is connected by a plurality of parallel supporting members, the supporting members are connected to the shell to support the loading platform, the supporting members move in a direction parallel to the loading platform, wherein there is a gap between two adjacent supporting members; a detection assembly, the detection assembly is arranged in the shell, the detection assembly includes an antenna assembly, the antenna assembly is connected to the supporting members, and the antenna assembly is arranged between the gaps; a driving assembly, the driving assembly is connected to the detection assembly, and the driving assembly drives the antenna assembly to move in a direction parallel to the loading platform. The technical solution provided in the present application reduces the thickness of the loading platform, thereby reducing its attenuation effect on the detection signal; at the same time, the antenna assembly is located in the gap between adjacent supporting members, ensuring that the detection signal will not be interfered by the supporting members, and has a higher detection speed and detection sensitivity.

Description

Technical Field

[0001] The present invention relates to the technical field of safety protection, and in particular to a foreign body detection device for soles of feet. Background Art

[0002] Considering factors such as personnel safety, in some special places with high population density, such as airports and railway stations, it is necessary to equip necessary security inspection equipment according to relevant national laws to prevent people from carrying dangerous goods or contraband, etc. Common security inspection equipment on the market currently includes security inspection doors, security inspection X-ray machines, handheld metal detectors, etc. When using a handheld metal detector, staff are required to inspect passengers one by one, and manual scanning is required during the inspection, which is time-consuming and has low detection accuracy. It is currently only used in places with a high density of people but a slow circulation speed, such as airports and high-speed rail stations, and cannot meet the needs of places that require fast passage, such as subway stations. Although security gates and security X-ray machines have high detection efficiency, security X-ray machines can only detect luggage carried by passengers and cannot check people. Therefore, it is easy to miss prohibited items hidden by people, and the detection accuracy is not high. Although security gates can quickly detect people, during the inspection, if the person being inspected hides prohibited items, especially a small amount of prohibited items hidden in shoes on the feet, there is a detection blind spot, and the role that the security gate can play is very limited.

[0003] Therefore, foot detection equipment that can quickly and accurately detect people has come into being. During the detection, the person only needs to stand on the detection equipment, and the machine scans the soles of their feet to complete the detection. The foot detection equipment has the characteristics of convenient and efficient detection, and has high detection accuracy. It is especially suitable for detecting blind spots such as feet where objects are easily hidden. However, the foot detection equipment currently provided, on the one hand, needs to provide a detection table to carry the person being detected, and on the other hand, requires electromagnetic waves to pass through the detection table to scan the body of the person being detected. There are certain contradictions in the design and load-bearing capacity of the detection table. If the detection table is designed to be too thick, it will affect the emission and reception of electromagnetic waves, thereby reducing the accuracy of the detection; if the detection table is set too thin, it will affect the load of the person being detected and the detection cannot be completed smoothly. Summary of the invention

[0004] Based on this, it is necessary to provide a sole foreign body detection device to address the problem that the design of the detection platform on the current sole detection equipment affects the detection accuracy.

[0005] A sole foreign body detection device comprises a shell, a loading platform is arranged on the top of the shell; a bearing assembly, the bearing assembly is arranged in the shell, the bearing assembly is connected by a plurality of parallel supporting members, the supporting members are connected to the shell to support the loading platform, the supporting members move along a direction parallel to the loading platform, and a gap is provided between two adjacent supporting members; a detection assembly, the detection assembly is arranged in the shell, the detection assembly comprises an antenna assembly, the antenna assembly is connected to the supporting members, and the antenna assembly is arranged between the gaps; and a driving assembly, the driving assembly is connected to the detection assembly, and the driving assembly drives the antenna assembly to move along a direction parallel to the loading platform.

[0006] Furthermore, it also includes a moving component, which includes a slide rail and a slider. The slider is movably arranged along the slide rail, and the slider is connected to the detection component.

[0007] Further, the slide rail is arranged along the longitudinal extension direction of the loading platform, the axial direction of the support member is arranged along the lateral extension direction of the loading platform, and the driving assembly drives the detection assembly to reciprocate along the slide rail.

[0008] Furthermore, the loading platform is composed of wave-transmitting material.

[0009] Furthermore, slide grooves are respectively arranged on the inner walls on both sides of the shell, and the slide grooves extend along the longitudinal direction of the loading platform. Both ends of the support member are respectively arranged in the slide grooves, and the antenna assembly moves to drive the bearing component to move along the slide grooves.

[0010] Furthermore, the antenna assemblies are arranged in pairs, and each pair of the antenna assemblies includes a millimeter wave transmitter and a millimeter wave receiver.

[0011] Furthermore, the antenna assembly includes a plurality of pairs, and the plurality of pairs of antenna assemblies are arranged along the axial direction of the support member.

[0012] Furthermore, it also includes a retaining frame, the antenna assembly is connected to the retaining frame, and the retaining frame is connected to the support member.

[0013] Furthermore, the retaining frames include two, and the two retaining frames are respectively arranged at two ends of the supporting member.

[0014] Furthermore, the retaining frame includes two groups, and the two groups of retaining frames are arranged along the moving direction of the detection component and are sequentially connected to two adjacent supporting members.

[0015] The sole foreign body detection device provided by the present application is composed of a shell, a bearing assembly, a detection assembly and a driving assembly. A loading platform is arranged on the shell, and the bearing assembly, the detection assembly and the driving assembly are arranged in the shell. The bearing assembly is used to support the loading platform on the shell, and the bearing assembly is composed of a plurality of interconnected support members. The driving assembly is used to drive the detection assembly to move. The antenna assembly on the detection assembly is connected to the support member, and the antenna assembly is in the gap between two adjacent support members. The sole foreign body detection device provided by the present application, on the one hand, because the bearing assembly is arranged under the loading platform, the bearing weight can be increased by the bearing assembly, thereby reducing the pressure on the loading platform. Therefore, the loading platform can select a thinner material, thereby reducing its attenuation effect on the antenna assembly transmitting or receiving signals, improving the sensitivity of detection, and having a higher detection accuracy; on the other hand, the antenna assembly is in the gap between adjacent support members, and the antenna assembly can drive the support member to move when it moves, thereby ensuring that the signal sent by the antenna assembly during mobile detection will not be interfered by the support member, but directly passes through the loading platform to reach the person being detected on the loading platform, having a higher detection speed, and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A top view of the sole foreign body detection device of the first embodiment of the present application;

[0017] Figure 2 It is an AA cross-sectional view of the sole foreign body detection device of the first embodiment of the present application;

[0018] Figure 3 It is a BB cross-sectional view of the sole foreign body detection device of the first embodiment of the present application;

[0019] Figure 4 This is a partial enlarged view of the sole foreign body detection device of the first embodiment of the present application;

[0020] Figure 5 This is a usage status diagram of the sole foreign body detection device of Example 2 of the present application. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. 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 invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0027] Foot detection equipment is convenient and efficient, with high detection accuracy, and is especially suitable for detecting blind spots such as feet where objects are easily hidden. However, the foot detection equipment currently provided requires, on the one hand, a detection platform to carry the person being detected, and on the other hand, electromagnetic waves need to pass through the detection platform to scan the body of the person being detected. There are certain contradictions in the design and load capacity of the detection platform. If the detection platform is designed to be too thick, it will affect the emission and reception of electromagnetic waves, thereby reducing the accuracy of the detection; if the detection platform is set too thin, it will affect the load of the person being detected and the detection cannot be completed smoothly.

[0028] Figure 1 FIG. 1 shows a top view of a plantar foreign body detection device according to Embodiment 1 of the present application. Figure 2 FIG. 2 shows an AA cross-sectional view of the plantar foreign body detection device according to the first embodiment of the present application. Figure 3 The BB cross-sectional view of the plantar foreign body detection device of the first embodiment of the present application is shown, combined with Figure 1-Figure 3 As shown, the plantar foreign body detection device provided by the present application includes a shell 1, a loading platform 2, a bearing component 3, a moving component 4, a detection component 5 and a driving component (not shown in the figure), the loading platform 2 is arranged on the top surface of the shell 1, and is used to carry the person to be detected; the bearing component 3, the moving component 4, the detection component 5 and the driving component are arranged inside the shell 1, the bearing component 3 is connected to the shell 1, and is used to support the loading platform 2; the detection component 5 is arranged on the moving component 4, and the driving component is connected to the detection component 5, and the driving component drives the detection component 5 to move along the moving component 4; the antenna assembly 51 is arranged on the detection component 5, and the antenna assembly 51 is driven to move back and forth along the moving component 4 while realizing the scanning of the person to be detected.

[0029] Specifically, the bearing assembly 3 is composed of a plurality of parallel supporting members 31, and the supporting members 31 are used to support the loading platform 2, including but not limited to rollers, rollers, supporting rods and supporting plates. The plurality of supporting members 31 are connected in sequence through connecting members 32, and there are gaps 33 between adjacent supporting members 31. The detection assembly 5 is connected to the supporting members 31, and the antenna assembly 51 on the detection assembly 5 is located between the gaps 33. When the detection assembly 5 moves along the moving assembly 4 for scanning, the detection assembly 5 can drive the bearing assembly 3 to move, and the antenna assembly 51 thereon is always kept between the gaps 33, thereby avoiding signal attenuation caused by the blocking of the bearing assembly 3 during signal transmission of the antenna assembly 51.

[0030] By arranging the bearing assembly 3 under the carrying platform 2, the weight of the person being tested borne on the carrying platform 2 is alleviated. Preferably, the carrying platform 2 is composed of wave-transmitting material. Compared with the sole detection device without a bearing assembly, the carrying platform thereon needs to provide a position for the person being tested to stand, so it is required to have sufficient strength to support the person being tested, and at the same time it needs to facilitate the transmission of the detection signal. Therefore, the wave-transmitting property of the carrying platform is required to be higher in material selection, and the size is larger. However, an overly thick carrying platform will inevitably affect the sensitivity of signal transmission. The carrying platform provided in the present application, because its bottom is supported by a bearing assembly, the size requirement of the carrying platform is lower, and even a very thin carrying platform can complete the detection task. Therefore, the wave-transmitting property is better, and the detection sensitivity is higher and the detection speed is faster when this method is used for detection.

[0031] In a preferred embodiment of the present application, the loading platform 2 is a rectangular structure having a longer longitudinal BB side and a shorter transverse AA side. The person being tested stands on the loading platform 2. When the person being tested is scanned, the preferred scanning path is to reciprocate along the longitudinal BB direction, that is, the moving direction of the antenna assembly 51 is along the longitudinal BB direction of the loading platform 2. The moving component 4 includes a slide rail 41 and a slider 42. The slider 42 is connected to the bottom of the detection component 5 and can move along the slide rail 41. Therefore, when the antenna assembly 51 is required to move along the longitudinal BB direction of the loading platform 2, the slide rail 41 is set along the longitudinal BB direction of the loading platform 2, and the driving component drives the detection component 5 or the slider 42 to move along the slide rail 41.

[0032] Furthermore, the driving assembly includes a driving motor and a transmission assembly, and the transmission assembly includes but is not limited to a gear rack structure, a worm gear structure, a transmission belt, a transmission chain structure, etc. It only needs to transmit power to the detection assembly 5 or the slider 42 to push the detection assembly 5 or the slider 42 to move along the slide rail 41. This part of the content is a conventional technical means in this field, so those skilled in the art can select a suitable driving assembly according to actual needs.

[0033] When the antenna assembly 51 moves, in order to ensure that it is always in the gap 33 between adjacent support members 31, the antenna assembly 51 needs to be fixed on the support member 31, and the support member 31 will not affect the movement of the antenna assembly 51. In the design, on the one hand, it is considered that the support member 31 needs to carry the loading platform 2, and on the other hand, the support member 31 needs to move synchronously with the antenna assembly 51, so as to ensure that the antenna assembly 51 is always in the position of the gap 33. Therefore, a slide groove 11 is set on the side wall of the shell 1, and the extension direction of the slide groove 11 is the same as that of the slide rail 41. Specifically, a plurality of support members 31 are arranged in parallel in the slide groove 11, and are connected in sequence to form a relatively flat plane, which is convenient for carrying the loading platform 2; at the same time, both ends of the support member 31 are clamped in the slide groove 11, and the movement path of the bearing component 3 is provided through the slide groove 11.

[0034] When the driving assembly drives the detection assembly 5 to move along the slide rail 41, since the detection assembly 5 is connected to the support member 31, it can drive the support member 31 to move along the slide groove 11, and multiple support members 31 are connected to each other in sequence, so that the bearing assembly 3 moves along the slide groove 11. At this time, the bearing assembly 3 and the detection assembly 5 move synchronously, and the antenna assembly 51 on the detection assembly 5 is always in the gap 33 between two adjacent support members 31. Preferably, in order to improve the efficiency of scanning, that is, the detection assembly 5 can complete a detection by moving along one side of the slide rail 41, a plurality of pairs of antenna assemblies 51 can be arranged on the detection assembly 5, and the plurality of pairs of antenna assemblies 51 are arranged along the axial direction of the support member 31, and a signal transmitter 511 and a signal receiver 512 are arranged on each pair of antenna assemblies 51. After being emitted by the signal transmitter 511, the signal for detection can sequentially pass through the gap 33 of the support member 31 and the object-carrying platform 2 to enter the feet of the person being detected, and then pass through the object-carrying platform 2 and the gap 33 to enter the signal receiver 512, and finally be analyzed and judged by the image analysis device in the detection component 5. Preferably, the signal transmitter 511 includes a millimeter wave transmitter, and the signal receiver 512 includes a millimeter wave receiver.

[0035] Furthermore, in order to facilitate the connection between the detection component 5 and the support member 31 and ensure that the antenna assembly 51 on the detection component 5 is in a fixed position, a retaining frame 6 may be provided between the detection component 5 and the support member 31 . Figure 4The partial enlarged view of the sole foreign body detection device of the first embodiment of the present application is shown, wherein the support member 31 has two ends 311, and the two ends 311 are respectively arranged in the slide groove 11, and the multiple support members 31 are connected to each other by a connecting member 32. Preferably, the connecting member 32 is arranged in the slide groove 11, which can realize the connection between the multiple support members 31 on the one hand, and will not affect the movement of the support member 31 on the other hand. It should be noted that the connecting member 32 only plays the role of connecting the multiple support members 31, ensuring that when the detection component 5 drives part of the support members 31 to move, the entire bearing component 3 can be in a moving state through the connecting member 32, thereby ensuring that the bottom of the loading platform 2 is always supported by the bearing component 3. Therefore, when the multiple support members 31 are connected by the connecting member 32, the structure of the connecting member 32 can be a sprocket structure or a pulley structure, as long as it can ensure that the support member 31 moves in the slide groove 11, and its movement mode includes but is not limited to a rolling mode or a translation mode, and the technicians in this field can design it according to the actual work needs.

[0036] In one embodiment of the present application, the retaining frame 6 includes two, which are respectively arranged at the two ends of the support member 31 and the detection component 5, and the detection component 5 is connected to the support member 31 through the retaining frame 6, and the antenna assembly 51 can be kept in the gap 33 between two adjacent support members 31. It should be noted that the retaining frame 6 in this manner can be connected to one of the multiple support members 31. When the detection component 5 moves, it drives one support member 31 to move, and the multiple support members 31 are connected as a whole through the connecting member 32. Then, after one support member 31 moves, the entire bearing component 3 can be driven to move.

[0037] Figure 5 The figure is a diagram of the use state of the plantar foreign body detection device of the second embodiment of the present application. The main difference between the plantar foreign body detection device provided in the second embodiment and the plantar foreign body detection device provided in the first embodiment is the different structure of the retaining frame. The retaining frame 6 in the second embodiment includes two groups, and the two groups of retaining frames 61 and 62 are respectively arranged in succession along the moving direction of the detection component 5. The two groups of retaining frames 61 and 62 are respectively connected to two adjacent support members 31, and a gap 33 is formed between two adjacent support members 31 through the two groups of retaining frames 61 and 62. Further, the bearing assembly 3 is divided into two groups by the two groups of retaining frames 61 and 62, that is, two bearing groups 311 and 312 are formed along both sides of the gap 33, and the multiple support members 31 in each bearing group 311 and 312 are connected in sequence, so that when the detection component 5 moves, the two bearing groups 311 and 312 located on both sides of the gap 33 can be driven to move respectively, thereby ensuring that the multiple support members 31 are always in a state of supporting the loading platform 2, and the antenna assembly 5 can be kept in the position of the gap 33 at all times.

[0038] It should be noted that, whether it is the retaining frames at both ends of a support member or the retaining frames connecting two adjacent support members, their purpose is to ensure that the carrying component can move with the detection component on the one hand, and to ensure that there is always a gap on the carrying component directly above the detection component on the other hand, thereby avoiding the situation where the carrying component weakens the detection signal when the detection component is moving and scanning.

[0039] Combination Figure 1-Figure 5 As shown, the person being detected 7 stands on the loading platform 2, and the detection component 5 can move from one side to the other side along the shell 1 to scan and detect the person being detected 7. When the detection component 5 moves, since the detection component 5 is connected to the supporting component 3 via the retaining frame 6, the detection component 5 can drive the supporting component 3 to move synchronously when it moves. The retaining frame 6 ensures that the antenna assembly 51 on the detection component 5 is always in the gap 33, which ensures that the antenna assembly 51 passes through the loading platform 2 to scan the person being detected 7 with the lowest interference, thereby greatly reducing the attenuation of the detection signal and improving the accuracy of the detection.

[0040] The sole foreign body detection device provided by the present application is composed of a shell, a bearing assembly, a detection assembly and a driving assembly. A loading platform is arranged on the shell, and the bearing assembly, the detection assembly and the driving assembly are arranged in the shell. The bearing assembly is used to support the loading platform on the shell, and the bearing assembly is composed of a plurality of interconnected support members. The driving assembly is used to drive the detection assembly to move. The antenna assembly on the detection assembly is connected to the support member, and the antenna assembly is in the gap between two adjacent support members. The sole foreign body detection device provided by the present application, on the one hand, because the bearing assembly is arranged under the loading platform, the bearing weight can be increased by the bearing assembly, thereby reducing the pressure on the loading platform. Therefore, the loading platform can select a thinner material, thereby reducing its attenuation effect on the antenna assembly transmitting or receiving signals, improving the sensitivity of detection, and having a higher detection accuracy; on the other hand, the antenna assembly is in the gap between adjacent support members, and the antenna assembly can drive the support member to move when it moves, thereby ensuring that the signal sent by the antenna assembly during mobile detection will not be interfered by the support member, but directly passes through the loading platform to reach the person being detected on the loading platform, having a higher detection speed, and improving the detection efficiency.

[0041] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A foreign body detection device for the sole of the foot, characterized in that: include: A housing, wherein a loading platform is arranged on the top of the housing; A bearing assembly, the bearing assembly is arranged in the shell, the bearing assembly is connected by a plurality of parallel supporting members, the supporting members are connected to the shell to support the loading platform, the supporting members move in a direction parallel to the loading platform, and there is a gap between two adjacent supporting members; A detection component, the detection component is arranged in the housing, the detection component includes an antenna assembly, the antenna assembly is connected to the support member, and the antenna assembly is arranged between the gaps; A driving component, wherein the driving component is connected to the detection component, and the driving component drives the antenna assembly to move in a direction parallel to the carrier platform; the carrier platform is in a rectangular structure, wherein the carrier platform has a transverse AA side and a longitudinal BB side, the longitudinal BB side is longer than the transverse AA side, and the moving direction of the antenna assembly is along the longitudinal BB side of the carrier platform.

2. The sole foreign body detection device according to claim 1, characterized in that: It also includes a moving component, which includes a slide rail and a slider. The slider is movably arranged along the slide rail, and the slider is connected to the detection component.

3. The sole foreign body detection device according to claim 2, characterized in that: The slide rail is arranged along the longitudinal extension direction of the loading platform, the axial direction of the support member is arranged along the lateral extension direction of the loading platform, and the driving assembly drives the detection assembly to reciprocate along the slide rail.

4. The sole foreign body detection device according to claim 1, characterized in that: The object-carrying platform is composed of wave-transmitting material.

5. The sole foreign body detection device according to claim 1, characterized in that: Slide grooves are respectively arranged on the inner walls on both sides of the shell, and the slide grooves extend along the longitudinal direction of the loading platform. Both ends of the support member are respectively arranged in the slide grooves, and the antenna assembly moves to drive the bearing component to move along the slide grooves.

6. The sole foreign body detection device according to claim 1, characterized in that: The antenna assemblies are arranged in pairs, and each pair of the antenna assemblies includes a millimeter wave transmitter and a millimeter wave receiver.

7. The sole foreign body detection device according to claim 6, characterized in that: The antenna assembly includes a plurality of pairs, and the plurality of pairs of antenna assemblies are arranged along the axial direction of the support member.

8. The sole foreign body detection device according to any one of claims 1 to 7, characterized in that: It also includes a retaining frame, the antenna assembly is connected to the retaining frame, and the retaining frame is connected to the support member.

9. The sole foreign body detection device according to claim 8, characterized in that: The retaining frames include two groups, and the two groups of retaining frames are arranged along the moving direction of the detection component and are sequentially connected to two adjacent supporting members.

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