A double gate type one-way door

Abstract

The application discloses a double-gate machine type one-way door, which comprises a mounting base and an internal passage. The passage is sequentially provided with a first gate machine and a second gate machine in a passing direction, and a temporary space is formed between the two gate machines. The first gate machine is a low-position rotating gate with a height not more than 110 cm, and the second gate machine is a full-height rotating gate with a height more than 190 cm, and the gap between the bottoms of the two gate machines is not more than 5 cm. Transparent acrylic partitions are arranged on the two sides of the passage, and an AI vision detection module is arranged on a top beam. Two detection zones distributed in an up-down mode are arranged in the passage, and full-height coverage detection is realized through multiple groups of horizontally arranged light curtain sensors. Through the combination of the high-low gate machines and the multi-level sensing system, the problems of complex structure, visual closure and detection blind area of the traditional one-way door are effectively solved, the functions of anti-following, anti-reverse and anti-drilling are realized, and the visual permeability and passing safety are ensured.

Description

Technical Field

[0001] This utility model belongs to the field of one-way passage door technology, specifically relating to a double-gate one-way door. Background Technology

[0002] In the management of passageways in public places such as airports and subway stations, one-way doors are key equipment to ensure orderly passage of people and prevent unauthorized entry. Currently, the most widely used type in such situations is the sliding AB-type one-way door. This type of equipment typically uses two sliding doors in conjunction with a sensor system to achieve one-way passage management by controlling the opening and closing sequence of the two doors. Specifically, refer to Chinese utility model patent CN212837374U, which discloses "A double sliding door type one-way door that can prevent unauthorized passage and unauthorized transfer of items." This solution includes a passageway, a detection device for sensing pedestrians or items within the passageway, and two sliding doors installed at both ends of the passageway. Each sliding door includes a horizontally movable door leaf and a drive device for driving the door leaf. The detection device and the drive device are communicatively connected, and the anti-reverse function is achieved through logic control.

[0003] However, this mainstream sliding door structure has several inherent drawbacks. First, its complex structure requires each sliding door to be equipped with precision guide rails, sliders, and a drive motor to achieve the horizontal reciprocating movement of the door panel. This not only increases manufacturing costs but also leads to cumbersome daily maintenance; any dust accumulation on the guide rails or wear on the transmission mechanism can cause malfunctions. Second, this structure is essentially a closed system; when the door is closed, the interior of the one-way door is enclosed, which can create a strong sense of confinement and oppression for passersby, while also hindering security personnel's real-time observation of the passageway's interior.

[0004] Therefore, there is an urgent need in this field for a new type of one-way door solution that can overcome the shortcomings of existing sliding doors, such as complex structure, cumbersome maintenance, and visual obstruction, while ensuring the same or even higher level of security. It can provide a simpler, more reliable, open, and user-friendly access management device. Utility Model Content

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution.

[0006] A dual-turnstile one-way gate includes a mounting base with an internal passageway. A first turnout and a second turnout are sequentially arranged along the passageway's flow direction. The outer side of the first turnout serves as the entrance, and the outer side of the second turnout serves as the exit. A temporary space is formed between the first and second turnouts along the flow direction, achieving physical isolation to prevent tailgating and reverse passage. A temporary space is provided between the first and second turnouts, and a clearance space is provided on the side of the temporary space closest to the first turnout to accommodate the rotation path of the first turnout's gate when it opens. The passageway includes a first detection area and a second detection area, arranged vertically to achieve full-height coverage detection from people to low-profile objects (pets, suitcases).

[0007] The first detection zone is located at a height of 90-150cm above the ground. Within this zone are a first light curtain sensor, a second light curtain sensor, and a third light curtain sensor. The first light curtain sensor detects objects at the entrance and clearance areas. The second light curtain sensor detects objects at the temporary parking area. The third light curtain sensor detects objects at the exit area.

[0008] The second detection zone is located within a height range of 0-15cm above the ground and is used to detect objects lower than the first detection zone. The second detection zone is equipped with an infrared sensor, a fourth light curtain sensor, a fifth light curtain sensor, and a sixth light curtain sensor. The infrared sensor is used to detect nearby objects at the entrance. The fourth light curtain sensor is used to detect whether there are objects in the clearance space. The fifth light curtain sensor is used to detect whether there are objects in the temporary parking space. The sixth light curtain sensor is used to detect whether there are objects at the exit.

[0009] The first, second, third, fourth, fifth, and sixth light curtain sensors are all installed horizontally, with their detection planes parallel to the ground. This horizontally installed detection plane solves the problems of discontinuous detection and blind spots inherent in traditional point sensors.

[0010] As a preferred embodiment of a dual-gate one-way door, the height of the first gate does not exceed 110cm. This height effectively prevents unauthorized crossing or climbing by people while maintaining visual transparency of the passage, facilitating security personnel to observe the entrance area, thus balancing security functions with spatial openness.

[0011] As a preferred embodiment of a dual-gate one-way gate, the height of the second gate exceeds 190cm. The second gate is a full-height gate, which can effectively prevent pedestrians from jumping, climbing over, or engaging in other illegal passage behaviors, strengthens the ability to prevent tailgating and reverse passage, and works in conjunction with the lower-height first gate to ensure normal passage efficiency while also providing a strong deterrent against malicious attempts to break through, thereby improving the overall security level.

[0012] As a preferred embodiment of a dual-gate unidirectional door, the bottom of the gates of the first and second gates is no more than 5cm from the ground. This size design can effectively prevent pets, young children, or small objects from crawling through the gap at the bottom of the gate, avoiding misjudgments by the light curtain detection system due to the small size of the object, and improving detection integrity and escape prevention capabilities.

[0013] As a preferred embodiment of a double-turnstile one-way gate, the mounting base has partitions on both sides of the passage, and the partitions are made of transparent acrylic sheets. While ensuring physical isolation and clear passage boundaries, it provides good visibility, making it easy for users to observe the status inside the passage, reducing psychological barriers. The transparent material enhances the sense of openness of the space, avoiding the oppressive feeling caused by enclosed turnstiles, and improving the user experience.

[0014] As a preferred embodiment of a dual-gate one-way door, the first and / or second gates are equipped with voice broadcasters. These broadcasters can provide real-time updates on gate status (open / closed), passage instructions, or abnormal warnings to users, offering a user-friendly interactive experience. For visually impaired individuals or users with attention deficit issues, voice prompts effectively reduce the risk of misoperation and enhance passage safety and convenience.

[0015] In a preferred embodiment of a dual-gate one-way door, a crossbeam spans the passageway, and an AI vision detection module is mounted on the crossbeam. The detection area of ​​the AI ​​vision detection module covers the temporary parking space. The AI ​​vision detection module can perform type recognition (such as distinguishing between adults, children, pets, and luggage) and behavior analysis (such as identifying abnormal behaviors such as tailgating and loitering) of passing objects, thereby improving the system's ability to respond to abnormal events.

[0016] Compared with the prior art, this application has the following beneficial technical effects: simple structure, convenient maintenance, and safe and reliable testing. Attached Figure Description

[0017] Figure 1 This is a front view of a one-way door.

[0018] Figure 2 This is a top view of a one-way door.

[0019] Figure 3 This is a side view of the one-way door.

[0020] The following is an explanation of the reference numerals in the attached figures:

[0021] 100. Mounting base; 101. First light curtain sensor; 102. Second light curtain sensor; 103. Third light curtain sensor; 104. Fourth light curtain sensor; 105. Fifth light curtain sensor; 106. Sixth light curtain sensor; 107. Infrared sensor; 110. Entrance; 120. Clearance space; 130. Temporary parking space; 140. Exit; 150. Sound-absorbing pad; 160. Partition; 170. Voice player; 180. Crossbeam; 181. AI visual inspection module;

[0022] 200, First turnstile; 210, Second turnstile; 220, Gate; 230, Tubular motor. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] In the following embodiments, the same or similar reference numerals denote the same or similar components or components with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of this utility model, it should be understood that the terms such as center, longitudinal, transverse, length, width, thickness, upper, lower, front, back, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, and counterclockwise, indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features shown. In the description of this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Reference Figures 1 to 3This solution relates to a dual-turnstile one-way gate, mainly comprising a mounting base 100 and an internal passageway. A first turnout 200 and a second turnout 210 are arranged sequentially along the passageway direction. The outer side of the first turnout 200 is the entrance 110, and the outer side of the second turnout 210 is the exit 140. The two turnouts along the passageway create a temporary parking space 130 with anti-tailgating and anti-reverse-flow functions, achieving physical isolation. A clearance space 120 is also provided on the side of the temporary parking space 130 closest to the first turnout 200 to accommodate the rotation path of the gate 220 when the first turnout 200 opens, ensuring smooth passage. Specifically, polyurethane foam sound-absorbing pads 150 are installed on the sidewalls of the passageway at the clearance space 120 and the exit 140. These pads are adhered to the sidewall surface with adhesive backing and effectively absorb the impact energy when the gate 220 opens, preventing noise from direct collision between metal components and the sidewall.

[0027] Both the first turnstile 200 and the second turnstile 210 employ a rotating gate structure driven by a tubular motor 230, and the surface of the gate 220 is covered with a smooth, anti-climb coating. The gate 220 of the first turnstile 200 uses lightweight composite materials to reduce rotational inertia, while the gate 220 of the second turnstile 210 employs a reinforced structure to enhance collision resistance. The turnstile control system integrates overcurrent protection and obstacle detection functions, automatically stopping or reversing when encountering resistance to ensure safe passage.

[0028] The first turnstile, 200, is no more than 110 centimeters high, effectively preventing unauthorized crossings or climbing while maintaining visual transparency, allowing security personnel to observe the entrance area 110, thus balancing security functionality with spatial openness. The second turnstile, 210, is over 190 centimeters high, a full-height structure that effectively prevents illegal jumping and climbing, further enhancing its ability to prevent tailgating and reverse passage. Used together, both turnstiles ensure normal passage efficiency while effectively deterring malicious attempts to breach the gates, thereby comprehensively improving overall security.

[0029] Furthermore, the bottom of the gate 220 of both the first turnstile 200 and the second turnstile 210 is no more than 5 cm from the ground. This design effectively prevents pets, young children, or small objects from crawling in from the bottom, avoiding misjudgments by the light curtain detection system due to the small size of the object, thus enhancing detection integrity and escape prevention capabilities. The mounting base 100 has partitions 160 on both sides of the passage, made of transparent acrylic panels. This ensures both physical isolation and clear passage boundaries while providing good visibility, helping users observe the internal conditions of the passage, reducing psychological pressure, enhancing the sense of openness, and improving the user experience. The first turnstile 200 and / or the second turnstile 210 are also equipped with voice broadcasters, which can provide real-time alerts to users regarding turnstile status, passage guidance, or abnormal warnings, facilitating human-computer interaction. Especially for visually impaired or inattentive users, voice prompts significantly reduce the risk of misoperation and improve passage safety and convenience. A crossbeam 180 spans the passageway and is equipped with an AI visual detection module 181. Its detection range covers the entire temporary storage space 130. It can identify the type of objects passing through (such as adults, children, pets or luggage) and analyze their behavior (such as tailing or abnormal loitering), thereby enhancing the system's ability to respond to abnormal events.

[0030] The passageway is equipped with a first detection zone and a second detection zone, which are arranged vertically to achieve full-height coverage detection from people to low-lying objects (pets, suitcases). The first detection zone is located at a height of 90-150cm above the ground and includes a first light curtain sensor 101, a second light curtain sensor 102, and a third light curtain sensor 103. The first light curtain sensor 101 detects objects at the entrance 110 and the clearance space 120. The second light curtain sensor 102 detects objects at the temporary parking space 130. The third light curtain sensor 103 detects objects at the exit 140. The second detection zone is located at a height of 0-15cm above the ground and is used to detect objects lower than the first detection zone. It includes an infrared sensor 107, a fourth light curtain sensor 104, a fifth light curtain sensor 105, and a sixth light curtain sensor 106. The infrared sensor 107 detects nearby objects at the entrance 110. The fourth light curtain sensor 104 detects objects at the clearance space 120. The fifth light curtain sensor 105 is used to detect whether there is an object at the temporary storage space 130. The sixth light curtain sensor 106 is used to detect whether there is an object at the exit 140.

[0031] The first light curtain sensor 101, the second light curtain sensor 102, the third light curtain sensor 103, the fourth light curtain sensor 104, the fifth light curtain sensor 105, and the sixth light curtain sensor 106 are all installed horizontally, with their detection planes parallel to the ground. The horizontal detection plane formed by the horizontal installation of the first to sixth light curtain sensors 106 has a scanning frequency of no less than 100Hz, ensuring continuous detection of people and regular luggage, and solving the problems of discontinuous detection and blind spots of traditional point sensors.

[0032] The specific passage logic of this dual-turnstile one-way gate is as follows:

[0033] 1. Entrance Detection and First Gate Opening: When a pedestrian or object approaches the entrance 110, the infrared sensor 107 or the first light curtain sensor 101 located near the entrance detects a signal. After the control system confirms that there are no obstructions at the entrance and in the clearance space 120, it drives the gate 220 of the first gate 200 to rotate and open towards the clearance space 120, allowing the pedestrian to enter the passage.

[0034] 2. Entry into the temporary holding space and closure of the first turnstile: After passing through the first turnstile 200, the passerby enters the temporary holding space 130. When both the first light curtain sensor 101 and the fourth light curtain sensor 104 detect that there is no object in the clearance space 120, and both the second light curtain sensor 102 and the fifth light curtain sensor 105 detect that there is an object in the temporary holding space 130, the control system determines that the passerby has completely entered the temporary holding space and there is no tailgating. Subsequently, the gate 220 of the first turnstile 200 rotates and closes, isolating the entrance area again.

[0035] 3. Opening and exiting the second turnstile: After the first turnstile 200 closes, the control system immediately drives the gate 220 of the second turnstile 210 to open. Passengers can exit from the temporary storage space 130 through the exit 140.

[0036] 4. Exit Detection and Second Gate Closure: After the passenger has completely passed through exit 140, both the third light curtain sensor 103 and the sixth light curtain sensor 106 located at the exit detect that there is no object at the exit. The control system then drives the gate 220 of the second gate 210 to close. This completes one-way passage.

[0037] 5. Anomaly Handling and AI Assistance: Throughout the process, if the sensors detect an anomaly (such as an object lingering in the avoidance space, passage timeout, or an attempt to pass in the opposite direction), the control system will pause the process and keep the gate closed, while simultaneously triggering a voice broadcast to issue a warning. The AI ​​visual detection module 181, located on the crossbeam 180, continuously monitors the temporary residence space 130, which can assist in identifying complex abnormal behaviors such as tailgating and multiple people entering the premises, and provide higher-level decision signals to the control system, further improving safety and reliability.

[0038] The scope of protection of this utility model includes, but is not limited to, the above embodiments. The scope of protection of this utility model is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art shall fall within the scope of protection of this utility model.

Claims

1. A double-turnstile type one-way door, characterized in that, The system includes a mounting base (100) with an internal channel. A first gate (200) and a second gate (210) are arranged sequentially along the passage direction of the channel. The outer side of the first gate (200) is an entrance (110), and the outer side of the second gate (210) is an exit (140). A temporary space (130) is provided between the first gate (200) and the second gate (210). A clearance space (120) is provided on the side of the temporary space (130) closest to the first gate (200). The clearance space (120) is used to accommodate the rotation path of the gate (220) of the first gate (200) when it is opened. A first detection area and a second detection area are provided within the channel. The first detection area is located at a height of 90-150cm above the ground, and the first detection area is equipped with: The first light curtain sensor (101) is used to detect whether there are objects at the entrance (110) and the clearance space (120); The second light curtain sensor (102) is used to detect whether there is an object in the temporary space (130); The third light curtain sensor (103) is used to detect whether there is an object at the exit (140); The second detection zone is located within a height range of 0-15cm above the ground and is used to detect objects lower than the first detection zone. The second detection zone includes: An infrared sensor (107) is used to detect nearby objects at the entrance (110); The fourth light curtain sensor (104) is used to detect whether there is an object in the clearance space (120); The fifth light curtain sensor (105) is used to detect whether there is an object in the temporary space (130); The sixth light curtain sensor (106) is used to detect whether there is an object at the exit (140); Among them, the first light curtain sensor (101), the second light curtain sensor (102), the third light curtain sensor (103), the fourth light curtain sensor (104), the fifth light curtain sensor (105), and the sixth light curtain sensor (106) are all installed in a horizontal position, and their detection planes are parallel to the ground.

2. A double-gate one-way door according to claim 1, characterized in that, The height of the first gate (200) does not exceed 110cm.

3. A double-turnstile one-way door according to claim 1, characterized in that, The height of the second gate (210) exceeds 190cm.

4. A double-gate one-way door according to claim 1, characterized in that, The bottom of the gate (220) of the first gate (200) and the second gate (210) is no more than 5cm from the ground.

5. A double-gate one-way door according to claim 1, characterized in that, The mounting base (100) has partitions (160) on both sides of the channel, and the partitions (160) are made of transparent acrylic sheet material.

6. A double-gate one-way door according to claim 1, characterized in that, The first gate (200) and / or the second gate (210) are equipped with voice broadcasters.

7. A double-turnstile one-way door according to claim 1, characterized in that, A crossbeam (180) spans the passage, and an AI visual detection module (181) is mounted on the crossbeam (180). The detection area of ​​the AI ​​visual detection module (181) covers the temporary space (130).

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