Gate safety detection equipment
By designing a gate security detection device and adopting an automated sampling belt conveyor system and document recognition device, the problems of low efficiency, high cost and blind spots in the existing technology have been solved, achieving efficient and accurate document detection and security response.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-05
- Publication Date
- 2026-04-14
AI Technical Summary
Existing methods for detecting hazardous chemicals are inefficient, costly, and inaccurate in public passageways. Furthermore, they lack specific testing for trace substances on document surfaces, creating blind spots in safety testing.
Design a gate security detection device, comprising a stainless steel sheet metal shell, a toxic and explosive detector, a sampling belt conveyor system, a toxic and explosive detection control board, and a document reader. The device achieves automated document sampling and detection through motor drive, electromagnet, and gear anti-slip counting components, ensuring full contact between the sampling belt and the document surface and accurate sample delivery.
It has achieved automated, fast, and accurate document detection, reduced labor costs, improved public passage efficiency, responded promptly to security risks, and reduced consumable costs.
Smart Images
Figure CN121857084A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of turnstile technology, specifically to a turnstile security detection device. Background Technology
[0002] In crowded public places such as airports and train stations, various valid documents of different sizes, such as ID cards, passports, Hong Kong and Macao travel permits, and Taiwan travel permits, are the core credentials for personnel passage verification. Meanwhile, the detection of dangerous and prohibited chemical substances such as explosives and drugs is a key link in ensuring public safety.
[0003] Currently, the detection of hazardous chemicals mainly relies on manual handheld test strips. Workers wipe the surfaces of items carried by passersby and their clothing with the test strips to collect trace amounts of the substance, which are then sent to specialized equipment for analysis. This traditional method has several drawbacks: First, the one-to-one detection model is extremely inefficient and cannot meet the high-traffic demands of public passageways, necessitating batch sampling and testing. This significantly reduces the response rate to hazardous and prohibited items, making it difficult to promptly identify safety hazards. Second, the cumbersome procedures require a certain level of expertise from staff, leading to high labor costs. Furthermore, the consistency of manual sampling is difficult to guarantee, potentially affecting the accuracy of the test results. In addition, traditional detection methods do not have a dedicated detection solution for frequently touched documents, neglecting trace amounts of hazardous substances that may adhere to their surfaces, creating blind spots in safety detection. Therefore, there is an urgent need for a safety detection technology solution that is adaptable to various types of documents, highly automated, and combines high efficiency and accuracy to overcome the shortcomings of existing technologies. Summary of the Invention
[0004] The purpose of this invention is to provide a gate security detection device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a gate security detection device, comprising a stainless steel sheet metal shell, and a toxic explosive detector, a sampling belt conveyor system, a toxic explosive detection control board, and an identification card reader disposed within the stainless steel sheet metal shell; The sampling tape conveying system includes a motor drive unit, a sampling tape winding wheel assembly, a sampling tape sampling assembly, and a gear anti-slip counting assembly. The motor drive unit includes a sampling tape take-up wheel motor and a sampling tape launch wheel motor. The sampling tape winding wheel assembly includes a sampling tape take-up wheel assembly and a sampling tape launch wheel assembly. The sampling tape take-up wheel assembly and the sampling tape launch wheel assembly are located at opposite ends of the sampling tape movement path. The sampling tape take-up wheel assembly motor is driven to drive the sampling tape take-up wheel assembly, and the sampling tape launch wheel assembly motor is driven to drive the sampling tape launch wheel assembly. Unused sampling tape is wound on the sampling tape launch wheel assembly, and used sampling tape is wound on the sampling tape take-up wheel assembly. The sampling tape sampling assembly includes an electromagnet, a proximity sensor, and a sampling tape roller. The sampling tape passes around the sampling tape roller, and the electromagnet contacts the sampling tape roller to drive the sampling tape roller to press the sampling tape downwards and make contact with the surface of the document. The gear anti-slip counting component includes a rotary encoder and gears, and the rotary encoder is signal-connected to the toxic explosive detection control board. The document reader, electromagnet, sampling belt take-up wheel motor, sampling belt take-up wheel motor, and rotary encoder are all electrically connected to the toxic explosive detection control board. The toxic explosive detector is signal-connected to the toxic explosive detection control board, and the detection end of the toxic explosive detector is set to correspond to the sampling segment movement path of the sampling belt.
[0006] Preferably, the gate safety detection equipment also includes an operation indicator panel, which is electrically connected to the toxic and explosive detection control board. The operation indicator panel is set on the outer surface of the stainless steel sheet metal shell and is used to indicate the replacement of the sampling tape.
[0007] Preferably, the gate security detection equipment also includes guide rollers, which are rotatably mounted inside a stainless steel sheet metal housing, and the guide rollers are configured to correspond to the movement path of the sampling belt for guiding the sampling belt to move smoothly.
[0008] Preferably, the gate safety detection equipment also includes an exhaust fan, which is mounted on a stainless steel sheet metal shell and is electrically connected to the toxic and explosive detection control board to discharge the exhaust gas generated during the detection process.
[0009] Preferably, the gate security detection equipment further includes a first serial port adapter, a second serial port adapter, and a green terminal. The first serial port adapter, the second serial port adapter, and the green terminal are all electrically connected to the toxic and explosive detection control board. The first serial port adapter, the second serial port adapter, and the green terminal are all located on the inner side wall of the stainless steel sheet metal shell to realize signal conversion and circuit connection.
[0010] Preferably, the gate security detection equipment also includes a power switch and a paper feed button. The power switch and the paper feed button are both electrically connected to the toxic and explosive detection control board, and the power switch and the paper feed button are both embedded in the outer surface of the stainless steel sheet metal shell. The power switch is used to control the on / off state of the equipment, and the paper feed button is used to control the installation and reset of the sampling tape.
[0011] Preferably, the motor drive device further includes a synchronous belt pulley and a synchronous belt. The sampling belt take-up pulley motor is driven by the synchronous belt and the synchronous belt pulley, and the synchronous belt pulley is coaxially fixed with the sampling belt take-up pulley. The sampling belt take-up pulley motor is driven by the synchronous belt and the synchronous belt pulley, and the synchronous belt pulley is coaxially fixed with the sampling belt take-up pulley, so as to realize synchronous transmission between the motor and the winding pulley.
[0012] Preferably, the toxic explosive detection control board can control the sampling tape take-up wheel motor and the sampling tape take-up wheel motor to drive the sampling tape to rewind based on the detection results of the toxic explosive detector, so as to realize the reuse of the sampling tape in the absence of an alarm.
[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. By optimizing the structural design of the sampling components, the sampling strip can fully contact the surface of documents of different sizes, which can meet the trace substance detection needs of various passes such as ID cards and passports. There is no need to adjust the equipment parameters for different documents, and it has a wide range of compatibility and is suitable for various public passage scenarios.
[0014] 2. The entire testing process requires no manual intervention. Passengers only need to place their documents on the document reader, and the equipment can automatically complete a series of operations such as identity verification, contactless sampling, sample delivery, and result feedback. This completely eliminates the cumbersome process of traditional manual wiping and batch delivery, greatly reducing the number of staff required and significantly lowering labor costs.
[0015] 3. In the sampling assembly, the electromagnet drives the sampling belt roller to press down, so that the sampling belt forms stable friction with the surface of the document, ensuring the effective pickup of trace substances; the gear anti-slip counting assembly provides real-time feedback of the sampling belt movement signal through a rotary encoder, and works with the detection control system to precisely control the movement of the sampling belt, which can accurately deliver the sampling segment to the thermal desorption position of the explosive detector, avoiding the impact of sampling offset on the detection results, and ensuring the accuracy and reliability of the detection.
[0016] 4. It enables simultaneous identity verification and hazardous substance detection without requiring additional cooperation from passersby. The contactless sampling mode reduces waiting anxiety and the detection process is fast and efficient, significantly shortening the average detection time per person, effectively improving the efficiency of personnel flow in public passageways and enhancing the passage experience.
[0017] 5. The equipment can immediately alarm when it detects prohibited substances, without waiting for batch test results, which significantly improves the response speed to dangerous prohibited items and makes it easier for staff to quickly deal with safety hazards. At the same time, the sampling tape can be reused by rewinding if no alarm is triggered, which reduces the cost of consumables. When the sampling tape is contaminated with prohibited substances or is used up, the operation indicator panel will promptly prompt for replacement to ensure the continuous and stable operation of the equipment. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the rear control system of the present invention; Figure 3This is a schematic diagram of the sampling tape transceiver mechanism of the present invention; Figure 4 This is a schematic diagram of the sampling component structure of the present invention; Figure 5 This is a schematic diagram of the sampling belt gear structure of the present invention.
[0019] In the diagram: 1. Stainless steel sheet metal casing; 2. Sampling belt; 3. Guide roller; 4. Gear anti-slip counting assembly; 5. Explosive detector; 6. Proximity sensor; 7. Electromagnet; 8. Sampling belt roller; 9. ID card reader; 10. Operation indicator panel; 11. Serial port adapter; 12. Sampling belt take-up roller motor; 13. Sampling belt send-off roller motor; 14. Sampling belt take-up roller assembly; 15. Sampling belt send-off roller assembly; 16. Power switch; 17. Green terminal; 18. Serial port adapter; 19. Paper feed button; 20. Exhaust fan; 21. Rotary encoder; 22. Explosive detection control board; 23. Synchronous belt pulley; 24. Synchronous belt; 25. Gear. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] This embodiment discloses a gate security detection device, such as... Figure 1-5 As shown, the device uses a stainless steel sheet metal shell 1 as the mounting carrier. The stainless steel sheet metal shell 1 is a closed cavity structure used to accommodate and protect the internal functional components. It also has the characteristics of impact resistance and corrosion resistance, making it suitable for use in public passageways such as airports and train stations.
[0022] The stainless steel sheet metal casing 1 integrates core functional components, including a toxic explosive detector 5, a sampling belt conveyor system, a toxic explosive detection control board 22, and an identification document reader 9. The toxic explosive detection control board 22, serving as the equipment's control core, is installed on the inner wall of the stainless steel sheet metal casing 1 to receive signals from various components and issue control commands. The identification document reader 9 is embedded in the front operating area of the stainless steel sheet metal casing 1, facilitating the placement of identification documents for identity verification by personnel. The toxic explosive detector 5 is fixed in the center of the stainless steel sheet metal casing 1, with its detection end (thermal desorption unit inlet) aligned with the movement path of the sampling belt 2, ensuring that the sampling segment of the sampling belt 2 accurately enters the detection area. The sampling belt conveyor system is distributed between the sampling and detection areas within the stainless steel sheet metal casing 1, realizing the entire process of releasing, sampling, conveying, and retrieving the sampling belt 2.
[0023] The sampling belt conveyor system is the core mechanism for achieving trace substance sampling and testing. It includes a motor drive unit, a sampling belt winding wheel assembly, a sampling belt sampling assembly, and a gear anti-slip counting assembly 4. Each sub-assembly works together to achieve precise control of the sampling belt 2.
[0024] The motor drive unit includes a sampling belt take-up pulley motor 12, a sampling belt give-up pulley motor 13, a synchronous belt pulley 23, and a synchronous belt 24. Both the sampling belt take-up pulley motor 12 and the sampling belt give-up pulley motor 13 are fixed on motor mounting brackets inside the stainless steel sheet metal housing 1, and both have synchronous belt pulleys 23 mounted on their output shafts. Correspondingly, synchronous belt pulleys 23 are also fixedly mounted on the shaft ends of the sampling belt take-up pulley group 14 and the sampling belt give-up pulley group 15. The synchronous belt pulleys 23 on the motor output shafts are connected to the synchronous belt pulleys 23 on the winding pulley group shafts via the synchronous belt 24, forming a synchronous transmission mechanism. This ensures that the motor power is smoothly and accurately transmitted to the winding pulley group, achieving uniform movement of the sampling belt 2.
[0025] The sampling tape winding assembly includes a sampling tape take-up reel group 14 and a sampling tape take-up reel group 15, which are rotatably mounted at both ends of the stainless steel sheet metal housing 1 via bearing seats, forming the start and end points of the sampling tape 2's movement path. Unused sampling tape 2 is wound on the sampling tape take-up reel group 15, while the sampling tape take-up reel group 14 is used to wind used sampling tape 2. The sampling tape take-up reel group motor 12 is driven by the sampling tape take-up reel group 14 via the aforementioned synchronous belt drive mechanism, providing power for the recovery of the sampling tape 2. The sampling tape take-up reel group motor 13 is driven by the sampling tape take-up reel group 15, providing power for the release of the sampling tape 2. Together, they achieve forward conveying and reverse rewinding of the sampling tape 2.
[0026] Sampling with sampling components: such as Figure 4 As shown, the device includes an electromagnet 7, a proximity sensor 6, and a sampling belt roller 8. The sampling belt roller 8 is rotatably mounted above the document reader 9 via a shaft and a bracket. The sampling belt 2 passes over the outer circumference of the sampling belt roller 8, and the lower surface of the sampling belt 2 is parallel to and opposite to the document placement surface of the document reader 9. The electromagnet 7 is vertically fixed on the mounting plate above the sampling belt roller 8. The telescopic end of the electromagnet 7 is connected downward to the top of the bracket of the sampling belt roller 8. The telescopic movement of the electromagnet 7 drives the sampling belt roller 8 to move up and down vertically. The proximity sensor 6 is mounted on one side of the electromagnet 7 to detect the position of the sampling belt roller 8 and transmits the position signal to the explosive detection control board 22 to achieve precise control of the contact pressure between the sampling belt 2 and the document surface. When sampling is performed, the electromagnet 7 extends and pushes the sampling belt roller 8 downward, so that the lower surface of the sampling belt 2 makes close contact with the surface of the document on the document reader 9 and forms friction, thus completing the pickup of trace substances; after sampling is completed, the electromagnet 7 retracts, the sampling belt roller 8 returns to its original position, and the sampling belt 2 separates from the surface of the document.
[0027] Gear anti-slip counting component 4: such as Figure 5 As shown, the sampling belt 21 and the gear 25 are included. The rotary encoder 21 is fixed to the side of the moving path of the sampling belt 2 inside the stainless steel sheet metal housing 1. The gear 25 is mounted on the input shaft of the rotary encoder 21 and meshes with the edge tooth groove of the sampling belt 2 (or friction drives the sampling belt 2 surface). When the sampling belt 2 moves, it drives the gear 25 to rotate. The rotary encoder 21 converts the rotation signal of the gear 25 into an electrical signal and transmits it to the explosive detection control board 22. The explosive detection control board 22 calculates the moving stroke and moving speed of the sampling belt 2 through signal analysis, and then precisely controls the start, stop and speed of the sampling belt take-up wheel motor 12 and the sampling belt take-off wheel motor 13 to ensure that the sampling section can be accurately delivered to the detection end of the explosive detector 5.
[0028] The operation indicator panel 10 is embedded in the front operating area of the stainless steel sheet metal housing 1, located next to the document reader 9, and is electrically connected to the toxic and explosive detection control board 22 via wires. The operation indicator panel 10 is equipped with at least two indicator light colors (such as red and green). When the sampling strip 2 detects a prohibited substance or is used up, the toxic and explosive detection control board 22 controls the red indicator light to illuminate, prompting the staff to replace the sampling strip 2; when the equipment is operating normally and the sampling strip 2 is usable, the green indicator light illuminates.
[0029] The guide rollers 3 are rotatably mounted inside the stainless steel sheet metal housing 1 via bearing seats. Multiple guide rollers are spaced apart along the moving path of the sampling belt 2. The outer circumferential surface of the guide rollers 3 is in contact with the surface of the sampling belt 2 to limit the moving trajectory of the sampling belt 2, prevent the sampling belt 2 from shifting or wrinkling during transportation, and ensure that the sampling belt 2 moves smoothly to the detection end of the explosive detector 5.
[0030] The exhaust fan 20 is installed on the side wall of the stainless steel sheet metal housing 1, corresponding to the exhaust port of the explosive detector 5, and is electrically connected to the explosive detection control board 22 via wires. When the explosive detector 5 performs thermal desorption detection, a small amount of exhaust gas is generated. The explosive detection control board 22 synchronously controls the exhaust fan 20 to start, expelling the exhaust gas outside the equipment to prevent the exhaust gas from accumulating inside the housing, affecting detection accuracy or causing safety hazards.
[0031] The first serial port adapter 11, the second serial port adapter 18, and the green terminal 17 are all fixed in the wiring area on the inner side wall of the stainless steel sheet metal housing 1, and are electrically connected to the explosive detection control board 22 via the terminal blocks. The first serial port adapter 11 and the second serial port adapter 18 are used to realize signal conversion between the explosive detection control board 22 and external devices (such as security management systems for airports / train stations), supporting data interaction. The green terminal 17 serves as a power distribution interface, used to connect and distribute external power to the explosive detection control board 22 and various electrical components (motors, electromagnets, detectors, etc.), achieving a neat circuit connection.
[0032] The power switch 16 and the paper feed button 19 are both embedded in the front outer surface of the stainless steel sheet metal housing 1, near the operation indicator panel 10, and are electrically connected to the explosive detection control board 22. The power switch 16 is used to control the power supply of the entire device. After pressing the power switch 16, the device is powered on and completes the initial self-test. The paper feed button 19 is used for installation and reset after the sampling tape 2 is replaced. When a new sampling tape 2 is replaced, pressing the paper feed button 19 will cause the explosive detection control board 22 to control the sampling tape take-up roller motor 12 and the sampling tape give-up roller motor 13 to operate, thereby tensioning the sampling tape 2 and resetting it to the initial sampling position, ensuring that the device can work normally.
[0033] The document reader 9, electromagnet 7, proximity sensor 6, sampling belt take-up motor 12, sampling belt take-up motor 13, rotary encoder 21, operation indicator panel 10, exhaust fan 20, power switch 16, and paper feed button 19 are all electrically connected to the explosive detection control board 22 via wires. Specifically, the document reader 9, proximity sensor 6, and rotary encoder 21 output signals to the explosive detection control board 22; the explosive detection control board 22 outputs control signals to the electromagnet 7, sampling belt take-up motor 12, sampling belt take-up motor 13, operation indicator panel 10, and exhaust fan 20; and the power switch 16 and paper feed button 19 serve as human-machine interface components, inputting control commands to the explosive detection control board 22.
[0034] The explosive detector 5 establishes a signal connection with the explosive detection control board 22. The explosive detector 5 converts the trace substance analysis results (whether it contains explosives or drugs) into electrical signals and transmits them to the explosive detection control board 22. The explosive detection control board 22 then judges the results and executes subsequent actions (alarm or release).
[0035] Equipment workflow: Passengers place valid identification documents such as ID cards and passports in the detection area of the document reader 9. The document reader 9 quickly reads the personnel's identity information on the document and transmits a "document placed" trigger signal to the explosive detection control board 22. After receiving the signal, the explosive detection control board 22 first confirms the initial position of the sampling belt roller 8 through the proximity sensor 6, and then sends a telescoping command to the electromagnet 7. The electromagnet 7 extends and pushes the sampling belt roller 8 downward, so that the sampling belt 2 wrapped on the sampling belt roller 8 is in close contact with the surface of the document. At the same time, the explosive detection control board 22 controls the sampling belt take-up roller group motor 12 to start, which drives the sampling belt take-up roller group 14 to rotate through the synchronous belt 24 and synchronous belt pulley 23, causing the sampling belt 2 to move at a constant speed along the surface of the document. The sampling belt 2 picks up trace substances from the surface of the document through friction, completing the sampling. During the sampling process, the rotary encoder 21 detects the movement distance of the sampling belt 2 in real time through the gear 25 and feeds the signal back to the explosive detection control board 22 to ensure that the sampling length meets the detection requirements.
[0036] After sampling is completed, the explosive detection control board 22 controls the electromagnet 7 to retract, the sampling belt roller 8 to reset, and the sampling belt 2 to separate from the document surface. At the same time, based on the signal fed back by the rotary encoder 21, the explosive detection control board 22 precisely controls the speed and direction of the sampling belt take-up roller motor 12 and the sampling belt take-off roller motor 13, driving the sampling belt 2 to continue moving and accurately delivering the sampling segment containing trace substances to the thermal desorption inlet of the explosive detector 5. During this process, the guide roller 3 restricts the movement trajectory of the sampling belt 2 to prevent the sampling segment from deviating. At the same time, the explosive detection control board 22 starts the exhaust fan 20 to prepare for the exhaust gas emission of the subsequent detection process.
[0037] Once the sampling section has fully entered the detection area of the explosive detector 5, the explosive detector 5 starts the thermal desorption and detection program to analyze the trace substances on the sampling strip, determine whether they contain explosives or drugs, and feed the detection result signal back to the explosive detection control board 22 in real time.
[0038] If the test result is "no prohibited substances detected" (no alarm): the green indicator light on the operation indicator board 10 controlled by the toxic and explosive detection control board 22 will light up, indicating that the personnel can take their documents and pass through; at the same time, the toxic and explosive detection control board 22 controls the sampling belt take-up wheel motor 12 and the sampling belt take-off wheel motor 13 to rotate in the opposite direction, driving the sampling belt 2 to rewind, and resetting the used but uncontaminated sampling section to the initial sampling position so that subsequent personnel can reuse the sampling section, reducing consumable costs.
[0039] If the detection result is "prohibited substance detected" (alarm): the red indicator light on the control operation indicator board 10 of the toxic and explosive detection control board 22 will light up, and an alarm signal will be sent to the external security management system to prompt the staff to conduct further verification of the person passing through; at this time, the sampling section of the sampling belt 2 will no longer be reused due to contamination with prohibited substances, and the equipment will continue to drive the sampling belt 2 to the sampling belt take-up wheel group 14; when the sampling belt 2 is completely used up, the red indicator light on the control operation indicator board 10 will continue to light up, prompting the staff to replace the sampling belt 2; after the staff replaces the sampling belt 2, they will press the paper feed button 19, and the equipment will automatically complete the tensioning and reset of the sampling belt 2 and return to the standby state.
[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A gate security detection device, characterized in that, It includes a stainless steel sheet metal housing (1), and a toxic explosive detector (5), a sampling belt conveyor system, a toxic explosive detection control board (22), and an identification card reader (9) disposed within the stainless steel sheet metal housing (1). The sampling belt conveying system includes a motor drive device, a sampling belt winding wheel assembly, a sampling belt sampling assembly, and a gear anti-slip counting assembly (4); the motor drive device includes a sampling belt take-up wheel group motor (12) and a sampling belt launch wheel group motor (13); the sampling belt winding wheel assembly includes a sampling belt take-up wheel group (14) and a sampling belt launch wheel group (15); the sampling belt take-up wheel group (14) and the sampling belt launch wheel group (15) are located at both ends of the moving path of the sampling belt (2); the sampling belt take-up wheel group motor (12) is driven to the sampling belt take-up wheel group (14); the sampling belt launch wheel group motor (13) is driven to the sampling belt launch wheel group (15); the sampling belt launch wheel group (15) is wound with unused sampling belt (2); the sampling belt take-up wheel group (14) is wound with used sampling belt (2); The sampling tape sampling assembly includes an electromagnet (7), a proximity sensor (6), and a sampling tape roller (8). The sampling tape (2) passes around the sampling tape roller (8). The electromagnet (7) contacts the sampling tape roller (8) to drive the sampling tape roller (8) to press the sampling tape (2) down onto the surface of the document. The gear anti-slip counting assembly (4) includes a rotary encoder (21) and a gear (25), wherein the rotary encoder (21) is connected to the toxic explosive detection control board (22) via signal. The document reader (9), electromagnet (7), sampling belt take-up wheel motor (12), sampling belt take-up wheel motor (13), and rotary encoder (21) are all electrically connected to the toxic explosive detection control board (22). The toxic explosive detector (5) is signal connected to the toxic explosive detection control board (22), and the detection end of the toxic explosive detector (5) is set to correspond to the sampling segment movement path of the sampling belt (2).
2. The gate security detection device according to claim 1, characterized in that, The gate safety detection equipment also includes an operation indicator board (10), which is electrically connected to the toxic and explosive detection control board (22). The operation indicator board (10) is set on the outer surface of the stainless steel sheet metal shell (1) and is used to indicate the replacement of the sampling tape (2).
3. The gate security detection device according to claim 2, characterized in that, The gate safety detection equipment also includes a guide roller (3), which is rotatably set inside the stainless steel sheet metal shell (1), and the guide roller (3) is set to the moving path of the sampling belt (2) to guide the sampling belt (2) to move smoothly.
4. The gate security detection device according to claim 3, characterized in that, The gate safety detection equipment also includes an exhaust fan (20), which is mounted on a stainless steel sheet metal shell (1) and is electrically connected to a toxic and explosive detection control board (22) to discharge the exhaust gas generated during the detection process.
5. The gate security detection device according to claim 4, characterized in that, The gate safety detection equipment also includes a first serial port adapter (11), a second serial port adapter (18), and a green terminal (17). The first serial port adapter (11), the second serial port adapter (18), and the green terminal (17) are all electrically connected to the toxic explosive detection control board (22). The first serial port adapter (11), the second serial port adapter (18), and the green terminal (17) are all located on the inner side wall of the stainless steel sheet metal shell (1) to realize signal conversion and circuit connection.
6. The gate security detection device according to claim 5, characterized in that, The gate safety detection equipment also includes a power switch (16) and a paper feed button (19). The power switch (16) and the paper feed button (19) are both electrically connected to the toxic and explosive detection control board (22). The power switch (16) and the paper feed button (19) are both embedded in the outer surface of the stainless steel sheet metal shell (1). The power switch (16) is used to control the on / off of the equipment, and the paper feed button (19) is used to control the installation and reset of the sampling tape (2).
7. The gate security detection device according to claim 6, characterized in that, The motor drive device also includes a synchronous belt pulley (23) and a synchronous belt (24). The sampling belt take-up pulley motor (12) is connected to the synchronous belt pulley (23) via the synchronous belt (24). The synchronous belt pulley (23) is coaxially fixed with the sampling belt take-up pulley group (14). The sampling belt give-up pulley motor (13) is connected to the synchronous belt pulley (23) via the synchronous belt (24). The synchronous belt pulley (23) is coaxially fixed with the sampling belt give-up pulley group (15) to realize synchronous transmission between the motor and the winding pulley group.
8. The gate security detection device according to claim 7, characterized in that, The toxic explosive detection control board (22) can control the sampling belt take-up motor (12) and the sampling belt take-up motor (13) to drive the sampling belt (2) to rewind according to the detection result of the toxic explosive detector (5), so as to realize the reuse of the sampling belt (2) in the absence of an alarm.