Leg detection security gate and metal detection system

Abstract

This application discloses a leg detection security gate and a metal detection system, relating to the field of security equipment technology. The leg detection security gate includes a first security component and a second security component, which are arranged at intervals to form a security screening channel. Both the first and second security components include a housing and a metal detection coil assembly, the latter being disposed within a cavity of the housing. The first and second security components are used to detect the legs of persons passing through the security screening channel. This application enriches the existing categories of security equipment and solves the problem of low efficiency in leg detection by security personnel.

Description

Technical Field

[0001] This application belongs to the field of security equipment design technology, specifically relating to a leg detection security gate and a metal detection system. Background Technology

[0002] Currently, most security gates used in places such as train stations and airports are metal detector gates. As people carry more and more types of metal, such as bracelets, necklaces, mobile phones, zippers and other items containing metal, almost every time a person passes through a security gate, a second security check is required by a handheld metal detector.

[0003] In addition, in practical applications, secondary security checks can be conducted by guiding people to stand on the metal detectors on the soles of their shoes. However, the metal detectors on the soles of shoes can only detect metal objects carried on the shoes and feet, and cannot detect the height of the lower legs. Therefore, security personnel have to hold the metal detector and bend over to scan the lower legs, which causes great inconvenience to the security personnel.

[0004] Overall, the security inspection industry currently lacks equipment that can efficiently perform security checks on the legs of passersby. Utility Model Content

[0005] The purpose of this application is to provide a leg detection security gate and metal detection system, which can enrich the existing security equipment categories and solve the problem of low work efficiency of security personnel in conducting leg security checks on passers-by.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows: In a first aspect, embodiments of this application provide a leg detection security gate, including a first security inspection device and a second security inspection device, wherein the first security inspection device and the second security inspection device are arranged at intervals to form a security inspection channel. Both the first security inspection component and the second security inspection component include a housing and a metal detection coil assembly, wherein the metal detection coil assembly is disposed within the receiving cavity of the housing; The first security inspection component and the second security inspection component are used to detect the legs of the person passing through the security inspection channel.

[0007] Secondly, embodiments of this application also provide a metal detection system, including a handheld metal detector and the aforementioned leg detection security gate.

[0008] In this embodiment, the leg detection security gate includes a first security component and a second security component, which are separately arranged and spaced apart to form a security screening channel. The first and second security components are used to detect the legs of personnel passing through the security screening channel. When a person enters the security screening channel of the leg detection security gate, the first and second security components detect the person's legs, thus avoiding the need for staff to bend over and use metal detectors, which improves the efficiency of security checks. Therefore, this application can solve the problem of low efficiency in leg security checks by security personnel.

[0009] In addition, compared with existing security inspection equipment, the leg detection security gate provided in this application is specifically designed to detect the legs of passers-by, which can enrich the variety of existing security inspection equipment and allow staff to make flexible selections according to actual needs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the leg detection security gate disclosed in an embodiment of this application; Figure 2 This is an exploded view of the leg detection security gate disclosed in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the first security inspection component disclosed in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the second security inspection component disclosed in an embodiment of this application.

[0011] Explanation of reference numerals in the attached figures: 100-First security inspection component, 110-Outer shell, 111-Mounting port, 112-End cap, 112a-First support part, 112a1-Support boss, 112a2-Second receiving groove, 112b-Second support part, 113-Side plate, 114-Top plate, 114a-Display panel mounting port, 114b-Alarm component mounting port, 120-Metal detection coil assembly, 121-Transmitting coil, 122-Receiving coil, 130-Pedestrian detection component, 131-Infrared transmitter, 132-Infrared receiver, 130'-First pedestrian detection component, 130”-Second pedestrian detection component, 140-Alarm component, 141-First alarm light, 142-Second alarm light, 150-Main control component, 160-Display panel, 170-Mounting plate, 180-Fixing component; 200 - Second security inspection component, 210 - Main body, 220 - Supporting part, 221 - First receiving slot. Detailed Implementation

[0012] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0013] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0014] The leg detection security gate and metal detection system provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0015] like Figures 1 to 4 As shown in the figure, this application discloses a leg detection security gate. Optionally, the leg detection security gate can be a millimeter wave security gate, which has the characteristics of fast scanning imaging speed, comprehensive detection, safety and reliability, good privacy protection effect and high detection accuracy. Of course, it can also be other types of security gates. This application does not make specific limitations on this.

[0016] The leg detection security gate includes a first security component 100 and a second security component 200. The first security component 100 and the second security component 200 are arranged at intervals to form a security inspection channel. The security inspection channel has an entrance end and an exit end. Passengers enter the security inspection channel from the entrance end for security checks and then leave from the exit end of the security inspection channel.

[0017] Both the first security inspection component 100 and the second security inspection component 200 include a housing 110 and a metal detection coil assembly 120. The metal detection coil assembly 120 is disposed within the receiving cavity of the housing 110 and is used to detect whether a person passing through is carrying metal objects. The leg detection security gate disclosed in this application uses a detection coil (metal detection coil assembly 120) for metal detection. It can detect metals through the principle of magnetic field induction, and has the characteristics of high detection efficiency, high detection sensitivity, and low installation cost.

[0018] Optionally, the metal detection coil assembly 120 can be an enameled copper coil. Since copper has good ductility and conductivity, it is convenient to set up the metal detection coil assembly 120 and has good signal transmission performance. Of course, it can also be other metal structures, and this application embodiment does not make specific limitations on this.

[0019] The first security inspection component 100 and the second security inspection component 200 are used to detect the legs of passengers as they pass through the security checkpoint. In other words, the leg detection security gate disclosed in this application is mainly used to detect the legs of passengers. Optionally, the leg detection security gate can be used to detect the lower legs of passengers. The height of the leg detection security gate can be 30-45cm, and of course, it can be selected according to actual needs; this application does not impose specific limitations on this.

[0020] In this embodiment, the leg detection security gate includes a first security component 100 and a second security component 200, which are arranged separately and spaced apart to form a security screening channel. The first and second security components 100 and 200 are used to detect the legs of personnel passing through the security screening channel. When a person enters the security screening channel of the leg detection security gate, the first and second security components 100 detect the person's legs, thus avoiding the need for staff to bend over and use metal detectors, which improves the efficiency of security checks. Therefore, this embodiment can solve the problem of low efficiency in leg security checks by security personnel.

[0021] In addition, compared with existing security inspection equipment, the leg detection security gate provided in this application is specifically designed to detect the legs of passersby. This can enrich the variety of existing security inspection equipment, allowing staff to make flexible choices according to actual needs. For example, the leg detection security gate can be used in conjunction with a handheld metal detector for security checks. In this case, the passerby enters the security inspection channel of the leg detection security gate for a security check of the leg area. After the passerby exits the security inspection channel, the staff uses a handheld metal detector to detect the upper body of the passerby, thereby completing the full-body detection of the passerby.

[0022] Furthermore, in the above embodiments, by adopting the leg detection security gate disclosed in this application, staff can avoid bending over to scan with a metal detector to conduct security checks, which can reduce back injuries to staff and further protect their health.

[0023] In an optional embodiment, at least one of the first security inspection component 100 and the second security inspection component 200 further includes a pedestrian detection component 130. The outer casing 110 of the security inspection component (which can be the first security inspection component 100, the second security inspection component 200, or both) has a mounting port 111. The pedestrian detection component 130 is located within the mounting port 111 and communicates with the security inspection channel through the mounting port 111, while also being exposed through the mounting port 111. The pedestrian detection component 130 and the metal detection coil assembly 120 are spaced apart in the passage direction of the security inspection channel. The pedestrian detection component 130 is used to detect whether people are entering or leaving the security inspection channel.

[0024] The pedestrian detection component 130 can be associated with the metal detection coil component 120. When the pedestrian detection component 130 is used to detect whether a person has entered the security checkpoint, it can be positioned at the entrance of the security checkpoint. If the pedestrian detection component 130 detects a person entering the security checkpoint, the main control component of the leg detection security gate (i.e., the component that executes processing and control logic) can control the metal detection coil component 120 to operate, detecting whether the legs of the person entering the security checkpoint are carrying metal objects. When the pedestrian detection component 130 is used to detect whether a person has left the security checkpoint... When the pedestrian detection component 130 is located at the exit end of the security checkpoint, and the metal detection coil component 120 has completed the detection of the legs of the person passing through the security checkpoint, but the pedestrian detection component 130 detects that the person has not yet left the security checkpoint, it can prevent the next person from entering the security checkpoint to ensure detection accuracy. If the pedestrian detection component 130 detects that the person has left the security checkpoint, it can allow the next person to enter the security checkpoint, thus avoiding two or more people being in the security checkpoint at the same time and improving the detection accuracy of the leg detection security gate.

[0025] In a further optional embodiment, the pedestrian detection component 130 can be a magnetoelectric detection component; or, the pedestrian detection component 130 can be an infrared detection component, which has the characteristics of high detection efficiency and high detection accuracy. Exemplarily, the pedestrian detection component 130 may include an infrared transmitter 131 and an infrared receiver 132. Optionally, both the infrared transmitter 131 and the infrared receiver 132 can be disposed in the first security inspection component 100, or both can be disposed in the second security inspection component 200, that is, both the infrared transmitter 131 and the infrared receiver 132 can be disposed in the same security inspection component. In this case, the pedestrian detection component 130 can use a reflective detection method for detection.

[0026] In some cases, if there are infrared interference sources in the security inspection environment, such as when multiple security gates are set up in parallel, the infrared radiation emitted by the infrared emitting component on one security gate may become an infrared interference source for another security gate. As a result, when both the infrared emitting component 131 and the infrared receiving component 132 are set on the same security inspection component, the pedestrian detection component 130 is easily affected by other infrared interference, which affects the accuracy of detection and may lead to false alarms.

[0027] Alternatively, in other optional embodiments, one of the infrared emitter 131 and the infrared receiver 132 is disposed on the inner side wall of the outer shell 110 of the first security inspection component 100, and the other is disposed on the inner side wall of the outer shell 110 of the second security inspection component 200. In this case, the infrared emitter 131 and the infrared receiver 132 are disposed opposite to each other in the width direction of the security inspection channel. In this case, the pedestrian detection component 130 adopts a through-beam detection method for detection. It uses the infrared blocking principle to achieve detection, which has the characteristics of strong anti-interference, wide applicability (supporting indoor and outdoor environments, such as shopping malls, scenic spots, stations and other public places), and reliable detection. Therefore, the pedestrian detection component 130 in this solution adopts the above-mentioned configuration, which helps to improve the detection accuracy of the pedestrian detection component 130 and expands the applicable scenarios of leg detection security gates. Furthermore, in practical applications, if the infrared transmitter 131 and the infrared receiver 132 (both without faults) cannot cooperate for detection, it indicates that they are misaligned in the width direction of the security check channel. In this case, staff need to check whether either the infrared transmitter 131 or the infrared receiver 132 is loose. Moreover, if the infrared transmitter 131 and the infrared receiver 132 (both without faults) cannot cooperate for detection, it indicates that the first security component 100 and the second security component 200 may not be aligned in the passage direction.

[0028] It should be noted that the infrared transmitter 131 and infrared receiver 132 mentioned above are disposed on the inner side wall of the housing 110. Specifically, the infrared transmitter 131 and infrared receiver 132 are connected to the inner side wall of the housing 110, but the main body of the infrared transmitter 131 and infrared receiver 132 is located inside the mounting port 111.

[0029] In practical applications, the specific implementation method of the pedestrian detection component 130 can be reasonably selected according to the security inspection environment.

[0030] Optionally, the number of pedestrian detection components 130 can be one; or, in other optional embodiments, the number of pedestrian detection components 130 is at least two, including a first pedestrian detection component 130' and a second pedestrian detection component 130' arranged at intervals along the height direction of the security checkpoint. The infrared emitter 131 of the first pedestrian detection component 130' is disposed on the inner sidewall of the housing 110 of the second security checkpoint component 200, and the infrared receiver 132 of the first pedestrian detection component 130' is disposed on the inner sidewall of the housing 110 of the first security checkpoint component 100; the infrared emitter 131 of the second pedestrian detection component 130' is disposed on the inner sidewall of the housing 110 of the first security checkpoint component 100. The infrared receiver 132 of the second pedestrian detection component 130” is disposed on the inner side wall of the outer shell 110 of the second security inspection component 200. That is, the infrared transmitter 131 and the infrared receiver 132 disposed on the same security inspection component belong to different pedestrian detection components. In this solution, the first pedestrian detection component 130' and the second pedestrian detection component 130” are disposed at different heights, and the infrared transmitter 131 and the infrared receiver 132 of the first pedestrian detection component 130' and the second pedestrian detection component 130” are disposed alternately and work independently. This is beneficial to improving the detection accuracy of the pedestrian detection component 130.

[0031] Optionally, the pedestrian detection component 130 can use a counting method to detect people entering or leaving the security checkpoint. For example, when people enter or leave the security checkpoint, the total number of pedestrians detected by the pedestrian detection component 130 can be incremented by one, thereby recording the number of people passing through the leg detection gate. This number is then compared with the number of people passing through the security gate or the number of people detected by the handheld metal detector to determine if any individual people have not undergone leg checks. Furthermore, when the total number of pedestrians detected by the pedestrian detection component 130 increments by one and the metal detection coil component 120 detects metal, it indicates that the metal may be carried by the person. When the total number of pedestrians detected by the pedestrian detection component 130 does not change, but the metal detection coil component 120 detects metal, it indicates that the metal detection coil component 120 may have made a false detection, and staff need to check whether the metal detection coil component 120 is malfunctioning.

[0032] In another optional embodiment, the pedestrian detection component 130 is used to detect pedestrians entering the security checkpoint, i.e., the pedestrian detection component 130 is located at the entrance of the security checkpoint. Both the first security checkpoint component 100 and the second security checkpoint component 200 further include a main control component 150 and an alarm component 140. The main control component 150 is disposed within the receiving cavity, and the metal detection coil component 120, the pedestrian detection component 130, and the alarm component 140 are all electrically connected to the main control component 150. The specific working principle of the alarm component 140 can be as follows: based on the detection signal from the pedestrian detection component 130, if it is determined that a pedestrian has entered the security checkpoint, and based on the detection signal from the metal detection coil component 120, if it is determined that a suspicious metal object is present on the pedestrian's leg, then the alarm component 140 will sound an alarm. In this solution, since both the first security check component 100 and the second security check component 200 are equipped with alarm components 140, the specific alarm component 140 that will sound an alarm can be determined based on the location of the suspicious metal object. For example, if the suspicious metal object is near the first security check component 100, the alarm component 140 on the first security check component 100 will sound an alarm; if the suspicious metal object is near the second security check component 200, the alarm component 140 on the second security check component 200 will sound an alarm. In other words, when alarm components 140 of different security check components sound an alarm, staff can promptly distinguish whether a person is carrying a metal object on their left or right leg, which improves staff efficiency.

[0033] Optionally, the alarm component 140 described above can be an alarm light or an acoustic device, such as a speaker. This application embodiment does not impose specific limitations on this.

[0034] Optionally, the alarm component 140 includes a first alarm light 141 and a second alarm light 142, both mounted on the housing 110. Both are electrically connected to the main control component 150. The main control component 150 can control the operating state of the first alarm light 141 based on the detection information from the metal detection coil component 120, and control the operating state of the second alarm light 142 based on the detection information from the pedestrian detection component 130. Specifically, when the detection information from the metal detection coil component 120 indicates that a person is carrying a metal object on their leg, the first alarm light 141 flashes to alert staff to conduct an inspection. When a person passes through the security checkpoint but the pedestrian detection component 130 does not detect any information, the second alarm light 142 flashes, indicating that the pedestrian detection component 130 may be malfunctioning, thus prompting staff to conduct an inspection.

[0035] In one optional embodiment, the metal detection coil assembly 120 of one of the first security inspection assembly 100 and the second security inspection assembly 200 is a transmitting coil 121, and the metal detection coil assembly 120 of the other is a receiving coil 122, that is, the transmitting coil 121 and the receiving coil 122 are arranged opposite each other across the width of the security inspection channel. In some cases, this electromagnetic coil arrangement can increase the coverage area and arrangement density of the transmitting coil 121 and the receiving coil 122, thereby improving the detection performance of the metal detection coil assembly 120.

[0036] Alternatively, in another optional embodiment, the metal detection coil assembly 120 in both the first security inspection assembly 100 and the second security inspection assembly 200 includes a transmitting coil 121 and a receiving coil 122. That is, both the first security inspection assembly 100 and the second security inspection assembly 200 are provided with a transmitting coil 121 and a receiving coil 122. In this case, the first security inspection assembly 100 and the second security inspection assembly 200 can work independently, and they can respectively detect the left and right legs of the person passing through, thereby accurately detecting the specific location of suspicious metal objects. Furthermore, when the first security inspection assembly 100 and the second security inspection assembly 200 work independently, they can be powered independently. In this case, no wiring is required in the security inspection channel between the first security inspection assembly 100 and the second security inspection assembly 200, which can avoid interfering with the person passing through.

[0037] In another optional embodiment, both the first security inspection component 100 and the second security inspection component 200 include a main body 210 and a support portion 220. The support portion 220 is provided with a first receiving groove 221, and the bottom of the main body 210 is disposed within the first receiving groove 221. The main body 210 includes a housing 110 and a metal detection coil assembly 120. This solution protects the main body 210 by placing the bottom of the main body 210 within the first receiving groove 221 of the support portion 220, thus preventing the bottom of the main body 210 from directly contacting the ground. Furthermore, the support portion 220 has a larger contact area with the ground, which helps improve the stability of the first security inspection component 100 and the second security inspection component 200. Of course, the support portion 220 can also be omitted, in which case the bottom of the main body 210 is in direct contact with the ground.

[0038] Optionally, part of the metal detection coil assembly 120 can be located in the first receiving groove 221. In this case, the detection range of the metal detection coil assembly 120 can be close to the ground to facilitate the detection of the feet and shoes of passers-by, thereby expanding the detection range. In this case, it is not necessary to set up foot detectors (i.e., shoe sole metal detectors) on the ground.

[0039] In a further optional embodiment, the housing 110 includes an end cap 112, a side plate 113, and a top plate 114. Along the passage direction of the security checkpoint, the end cap 112 is disposed at the end of the side plate 113. Optionally, the side plate 113 is detachably disposed on the side of the end cap 112 facing away from the security checkpoint to facilitate the installation of structures such as the metal detection coil assembly 120. The top plate 114 is disposed on top of the end cap 112 and the side plate 113, and the end cap 112, side plate 113, and top plate 114 form the aforementioned receiving cavity. Optionally, the electromagnetic coil in the metal detection coil assembly 120 (here, the electromagnetic coil can be the transmitting coil 121 and / or the receiving coil 122, depending on the specific arrangement of the metal detection coil assembly 120) can be directly disposed on the inner surface of the receiving cavity; or, the first security inspection assembly 100 and the second security inspection assembly 200 both include a mounting plate 170, the mounting plate 170 is disposed in the receiving cavity, the mounting plate 170 is detachably connected to the end cover 112, the mounting plate 170 and the side plate 113 are opposite each other in the width direction of the security inspection channel, and the electromagnetic coil in the metal detection coil assembly 120 (here, the electromagnetic coil can be the transmitting coil 121 and / or the receiving coil 122, depending on the specific arrangement of the metal detection coil assembly 120) is disposed on the mounting plate 170. The electromagnetic coil in the metal detection coil assembly 120 of this application adopts the above-described arrangement, which can avoid making holes in the housing 110, thereby ensuring the structural strength of the housing 110. Furthermore, during the assembly of the leg detection security gate, the metal detection coil assembly 120 can be first installed on the mounting plate 170 to form a module, and then the two can be installed together in the receiving cavity of the housing 110, which can reduce the assembly difficulty of the metal detection coil assembly 120.

[0040] Optionally, the metal detection coil assembly 120 of the first security inspection assembly 100 and the metal detection coil assembly 120 of the second security inspection assembly 200 are directly opposite each other in the width direction of the security inspection channel, which can achieve the symmetry of the magnetic field of the leg detection security gate and the zeroing.

[0041] In a further optional embodiment, when the electromagnetic coils (here, the electromagnetic coils can be transmitting coils 121 and / or receiving coils 122, depending on the arrangement of the metal detection coil assembly 120) in the first security inspection assembly 100 and the second security inspection assembly 200 both include transmitting coils 121 and receiving coils 122, the first security inspection assembly 100 and the second security inspection assembly 200 also each include a preset number of fixing members 180. Each fixing member 180 is disposed on the edge of the mounting plate 170, and each fixing member 180 is arranged at intervals along the circumference of the mounting plate 170. The transmitting coils 121 are arranged around each fixing member 180 and are fixed to the mounting plate 170 by each fixing member 180. The receiving coils 122 are located in the accommodating space formed by the inner annular surface of the transmitting coils 121. The mutual cooperation of the transmitting coils 121 and the receiving coils 122 is used to detect the passing personnel. In this design, the transmitting coil 121 and the receiving coil 122 are arranged as described above, both located in the same plane, thereby reducing the space occupied by the metal detection coil assembly 120 in the width direction of the security check channel; and, it can avoid mutual interference between the transmitting coil 121 and the receiving coil 122. Of course, the transmitting coil 121 and the receiving coil 122 can also be arranged side by side.

[0042] Optionally, each fastener 180 can be a conical rubber plug, which has the characteristics of high temperature resistance and easy replacement.

[0043] Alternatively, the receiving coil 122 can be fixed to the mounting plate 170 by means of screws or other connectors.

[0044] In one optional embodiment, the top of the end cap 112 is provided with a first support portion 112a and a second support portion 112b spaced apart along the passage direction of the security check channel. A top plate 114 is supported on the first support portion 112a and the second support portion 112b. Both the top plate 114 of the first security check component 100 and the second security check component 200 are provided with a display panel mounting port 114a. Both the first security check component 100 and the second security check component 200 also include a display panel 160, which is mounted in the display panel mounting port 114a and supported on support protrusions 112a1 provided on opposite sides of the first support portion 112a and the second support portion 112b, thereby improving the stability of the display panel 160. Furthermore, the space between the first support portion 112a and the second support portion 112b can not only accommodate part of the display panel 160 but also avoid the first connecting line used to connect the display panel 160 to the main control component 150. Of course, the aforementioned support protrusions 112a1 may also be omitted.

[0045] Optionally, the display panel 160 of the first security inspection component 100 is used to display the detection information of the pedestrian detection component 130 and the metal detection coil component 120 of the first security inspection component 100, and the display panel 160 of the second security inspection component 200 is used to display the detection information of the pedestrian detection component 130 and the metal detection coil component 120 of the second security inspection component 200. When the metal detection coil assembly 120 indicates that a person is carrying a metal object on their leg, staff can check this information on the display panel 160 for timely inspection. Alternatively, if the display panel 160 does not show the detection information from the pedestrian detection assembly 130 after the person has entered or left the security checkpoint, it indicates that the pedestrian detection assembly 130 may be malfunctioning. Furthermore, since both the first security assembly 100 and the second security assembly 200 include a display panel 160, staff can quickly distinguish whether a person is carrying a metal object on their left or right leg based on the information displayed on the display panels 160 of different security assemblies, which improves staff efficiency. Alternatively, the display panel 160 may not be required.

[0046] Optionally, in embodiments where both the first security inspection component 100 and the second security inspection component 200 further include a main control component 150 and an alarm component 140, both the first security inspection component 100 and the second security inspection component 200 also include a display panel 160. The main control component 150 of the first security inspection component 100 and the main control component 150 of the second security inspection component 200 are communicatively connected. The detection information of both the first security inspection component 100 and the second security inspection component 200 is displayed on the display panel 160 of the first security inspection component 100 and the display panel 160 of the second security inspection component 200 for information aggregation, thereby facilitating staff viewing and improving staff work efficiency. Of course, the main control component 150 of the first security inspection component 100 and the main control component 150 of the second security inspection component 200 can also be disconnected.

[0047] And / or, in another optional embodiment, the top of the end cap 112 is provided with a first support portion 112a and a second support portion 112b spaced apart along the passage direction of the security check channel. The top plate 114 is supported by the first support portion 112a and the second support portion 112b. Both the top plate 114 of the first security check component 100 and the second security check component 200 are provided with alarm component mounting ports 114b. Both the first security check component 100 and the second security check component 200 also include an alarm component 140, which is disposed in the alarm component mounting port 114b. At least one of the first support portion 112a and the second support portion 112b is provided with a second receiving groove 112a2. The second receiving groove 112a2 is used to accommodate the alarm component 140, preventing the alarm component 140 from protruding excessively from the top plate 114, thereby improving the stability of the alarm component 140. Of course, the aforementioned second receiving groove 112a2 may also be omitted.

[0048] It should be noted that the bottom of the second receiving groove 112a2 is provided with a clearance through hole, which is used to avoid the second connecting line used to connect the alarm component 140 and the main control component 150.

[0049] Optionally, the alarm component 140 may be supported at the bottom of the second receiving slot 112a2 to improve the stability of the alarm component 140.

[0050] Based on the leg detection security gate disclosed in the embodiments of this application, this application also discloses a metal detection system, which includes a handheld metal detector and the leg detection security gate described in any of the above embodiments. The handheld metal detector is used to detect whether there are suspicious metal objects on the upper body of a person passing through. The handheld metal detector can be implemented with reference to the implementation principles of existing handheld metal detection devices, and this application does not specifically limit it. The combination of the handheld metal detector and the leg detection security gate enables full-body detection of persons passing through, which is beneficial for ensuring the accuracy of security checks and improving their convenience and efficiency.

[0051] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A leg detection security door, characterized in that, It includes a first security inspection component (100) and a second security inspection component (200), which are arranged at intervals to form a security inspection channel; Both the first security inspection component (100) and the second security inspection component (200) include a housing (110) and a metal detection coil assembly (120), wherein the metal detection coil assembly (120) is disposed within the receiving cavity of the housing (110); The first security inspection component (100) and the second security inspection component (200) are used to detect the legs of the person passing through the security inspection channel.

2. The leg detection security door of claim 1, wherein, At least one of the first security inspection component (100) and the second security inspection component (200) further includes a pedestrian detection component (130). The housing (110) of the security inspection component on which the pedestrian detection component (130) is provided has an installation port (111), and the pedestrian detection component (130) is located inside the installation port (111). The pedestrian detection component (130) is used to detect whether the person enters or leaves the security checkpoint.

3. The leg detection security door of claim 2, wherein, The pedestrian detection component (130) includes an infrared transmitter (131) and an infrared receiver (132). One of the infrared transmitter (131) and the infrared receiver (132) is disposed on the inner side wall of the housing (110) of the first security inspection component (100), and the other is disposed on the inner side wall of the housing (110) of the second security inspection component (200).

4. The leg detection security door of claim 2, wherein, The first security inspection component (100) and the second security inspection component (200) both include a main control component (150) and an alarm component (140), and the metal detection coil component (120), the pedestrian detection component (130) and the alarm component (140) are all electrically connected to the main control component (150).

5. The leg detection security gate according to claim 1, characterized in that, In one of the first security inspection components (100) and the second security inspection component (200), the metal detection coil assembly (120) is a transmitting coil (121), and in the other, the metal detection coil assembly (120) is a receiving coil (122); or, The metal detection coil assembly (120) in both the first security inspection assembly (100) and the second security inspection assembly (200) includes a transmitting coil (121) and a receiving coil (122).

6. The leg detection security door of claim 1, wherein, Both the first security inspection component (100) and the second security inspection component (200) include a main body (210) and a support (220). The support (220) is provided with a first receiving groove (221). The bottom of the main body (210) is disposed in the first receiving groove (221). The main body (210) includes the outer shell (110) and the metal detection coil assembly (120).

7. The leg detection security door of claim 6, wherein, The outer casing (110) includes an end cap (112), a side plate (113), and a top plate (114); along the passage direction of the security check channel, the end cap (112) is disposed at the end of the side plate (113), and the top plate (114) is disposed at the top of the end cap (112) and the side plate (113), and the end cap (112), the side plate (113), and the top plate (114) form the receiving cavity; Both the first security inspection component (100) and the second security inspection component (200) include a mounting plate (170), which is disposed in the receiving cavity. The mounting plate (170) is detachably connected to the end cap (112). The mounting plate (170) and the side plate (113) are opposite each other in the width direction of the security inspection channel. The electromagnetic coil in the metal detection coil assembly (120) is disposed on the mounting plate (170).

8. The leg detection security door of claim 7, wherein, In the case where the electromagnetic coils in the metal detection coil assembly (120) of the first security inspection assembly (100) and the second security inspection assembly (200) both include a transmitting coil (121) and a receiving coil (122), the first security inspection assembly (100) and the second security inspection assembly (200) also include a preset number of fixing members (180). Each fixing member (180) is disposed on the edge of the mounting plate (170), and each fixing member (180) is arranged at intervals along the circumference of the mounting plate (170). The transmitting coil (121) is disposed around each fixing member (180), and the transmitting coil (121) is fixed to the mounting plate (170) by each fixing member (180). The receiving coil (122) is located in the accommodating space formed by the inner ring surface of the transmitting coil (121).

9. The leg detection security door of claim 7, wherein, The top of the end cap (112) is provided with a first support part (112a) and a second support part (112b) spaced apart along the passage direction of the security check channel, and the top plate (114) is supported by the first support part (112a) and the second support part (112b). Both the first security inspection component (100) and the second security inspection component (200) have a display panel mounting port (114a) on their top plates (114). Both the first security inspection component (100) and the second security inspection component (200) also include a display panel (160). The display panel (160) is mounted in the display panel mounting port (114a) and supported on support bosses (112a1) on opposite sides of the first support portion (112a) and the second support portion (112b); and / or, Both the first security inspection component (100) and the second security inspection component (200) have alarm component mounting ports (114b) on their top plates (114). Both the first security inspection component (100) and the second security inspection component (200) also include an alarm component (140). The alarm component (140) is disposed in the alarm component mounting port (114b). At least one of the first support part (112a) and the second support part (112b) is provided with a second receiving groove (112a2). The second receiving groove (112a2) is used to receive the alarm component (140).

10. A metal detection system characterized in that, Including handheld metal detectors and leg-detection security gates as described in any one of claims 1 to 9.

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