Scanning sensor for vertical hinged door
By using photoelectric proximity switches and judgment mechanisms in the automatic swing door system, preventing sensor error triggering, the problem of the door leaf not being fully opened is solved, and the safety and aesthetics of the system are ensured.
Patent Information
- Application Number
- CN202421067021.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-16
AI Technical Summary
When the gap between the door and the wall is smaller than the distance between the sensor detection field and the door leaf, the door leaf cannot be fully opened, affecting the safety and aesthetics of use.
A scanning sensor including a photoelectric proximity switch and a judgment mechanism is adopted. The light beam of the photoelectric proximity switch points to the inner obstacle. The judgment mechanism interrupts the signal connection between the sensor and the gate controller to prevent the sensor from triggering an error stop command, so that the door leaf can be fully opened.
It effectively solves the problem that the door leaf cannot be fully opened and ensures the safety and aesthetics of the automatic swing door system.
Smart Images
Figure CN222350538U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sensors, in particular to a scanning sensor for a swing door. Background Art
[0002] Automatic swing door is an automatic door system in which the door leaf is controlled by a door controller to rotate and open along the door axis. It is a very common automatic door system.
[0003] In order to avoid collision with pedestrians during the opening and closing movement of the door leaf, existing automatic swing doors are generally equipped with sensors, especially laser scanning sensors, on both sides of the door leaf, or at least on one side of the door opening direction. The laser scanning sensor forms a detection field by scanning and emitting detection lasers. The detection field covers a certain preset area in front of the door leaf. When the detection field of the sensor detects the existence of an object blocking the detection laser, it sends a signal to the door controller to stop the current control of the rotation of the door leaf, thereby avoiding collision with pedestrians during the rotation of the door leaf. Generally speaking, the detection field of the sensor needs to be a certain distance away from the door leaf to provide sufficient safety reaction time for pedestrians and the door controller.
[0004] However, the prior art has the following problems: when the distance between the automatic swing door and the wall gap is smaller than the distance between the sensor's detection field and the door leaf, the door leaf will open and rotate. When it rotates to a certain position, the sensor's detection laser detects the wall, thereby triggering a response, causing the door controller to stop the current control of the door leaf's rotation action, which in turn causes the door leaf to be unable to fully open. The smaller the distance between the automatic swing door and the wall gap and the larger the distance between the sensor's detection field and the door leaf, the more obvious this problem is. In some usage scenarios, the door leaf can even only open 70° (about 90° when fully opened), resulting in a narrower passable passage, affecting the safety and aesthetics of the automatic swing door system. Utility Model Content
[0005] In order to overcome the problems existing in the prior art, the utility model provides a scanning sensor for a swing door, comprising: a sensor, a photoelectric proximity switch, and a judgment mechanism.
[0006] The photoelectric proximity switch is installed on the inner side of the swing door and rotates with the rotation of the swing door; the emission direction of the light beam of the photoelectric proximity switch points to the obstacle close to the inner side of the swing door.
[0007] The signal output end of the judgment mechanism is connected to the door controller signal through a sensor, or directly connected to the door controller signal; the signal input and receiving end of the judgment mechanism is connected to the signal output end of the photoelectric proximity switch.
[0008] Optionally, the start control terminal of the judgment mechanism is connected to the gate controller signal.
[0009] Optionally, the start control terminal of the photoelectric proximity switch is connected to a door controller signal.
[0010] Optionally, the power supply end of the judgment mechanism is electrically connected to the door controller, or the sensor, or the power supply line between the door controller and the sensor.
[0011] Optionally, the power supply terminal of the photoelectric proximity switch is electrically connected to the door controller, or the sensor, or the power supply line between the door controller and the sensor.
[0012] Furthermore, the judgment mechanism is one of a relay, a microprocessor, and an electric control circuit switch.
[0013] Furthermore, the judgment mechanism is a normally open relay or a normally open electric control circuit switch; the load circuit contacts of the normally open relay or the normally open electric control circuit switch are electrically connected to the signal circuit between the sensor and the door controller respectively; the control circuit contacts of the normally open relay or the normally open electric control circuit switch are electrically connected to the photoelectric proximity switch.
[0014] Furthermore, a resistance device is provided in the signal line between the sensor and the door controller between the normally open relay or the normally open electric control circuit switch and the door controller; the resistance value of the resistance device is higher than the resistance value of the normally open relay or the normally open electric control circuit load line.
[0015] Furthermore, the judgment mechanism is a normally closed relay or a normally closed electric control circuit switch, and the normally closed relay or the normally closed electric control circuit switch is arranged on the signal circuit that the sensor outputs the signal to the door controller; the control end of the normally closed relay or the normally closed electric control circuit switch is connected to the photoelectric proximity switch signal.
[0016] Furthermore, the judgment mechanism is a microprocessor, and the signal of the microprocessor is provided with at least two signal receiving ends and one signal output end; one signal receiving end of the microprocessor is connected to the sensor signal, and the other signal receiving end is connected to the photoelectric proximity switch signal; the signal output end of the microprocessor is connected to the door controller signal.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] The utility model effectively overcomes the problem that the door leaf of the existing automatic swing door system cannot be fully opened. On the basis of ensuring the basic safety of the use of the automatic swing door system, the door leaf of the automatic swing door system can be fully opened, thus overcoming the problems of the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the structure of a scanning sensor for a swing door of the utility model;
[0020] Figure 2 A schematic diagram of a detection field formed by the sensor of the utility model;
[0021] Figure 3 A schematic diagram of a pedestrian passage formed by a swing door of the utility model;
[0022] Figure 4 It is a schematic diagram of the utility model when the swing door is in a closed state;
[0023] Figure 5 It is a schematic diagram of the casement door of the utility model when it is opened to a specific angle;
[0024] Figure 6 for Figure 5 A schematic diagram of the enlarged structure of part A;
[0025] Figure 7 It is a schematic diagram of the fully opened state of the swing door of the utility model;
[0026] Figure 8 This is a simplified schematic diagram of the installation circuit structure of a photoelectric proximity switch and a judgment mechanism of the utility model;
[0027] Fig. 9 This is a simplified schematic diagram of another photoelectric proximity switch and judgment mechanism installation circuit structure of the utility model;
[0028] Fig.10 This is a simplified schematic diagram of the installation circuit structure of the third type of photoelectric proximity switch and judgment mechanism of the utility model;
[0029] In the figure:
[0030] 1. Sensor; 101. Detection field; 2. Door controller; 3. Judgment mechanism; 4. Photoelectric proximity switch; 401. Detection laser; 5. Swing door; 501. Pedestrian passage; 6. Obstacle. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] The utility model exemplarily provides a scanning sensor for a swing door, such as Figure 1 As shown, it includes: a sensor 1, a photoelectric proximity switch 4 and a judgment mechanism 3.
[0033] As required, the sensor 1 can be the LZR-FLATSCAN SW sensor of Biye Electronics (Beijing) Co., Ltd. Figure 2 As shown, the detection field 101 generated by the sensor 1 forms a fan-shaped detection area that is inclined outward relative to the door leaf.
[0034] The photoelectric proximity switch 4 is an existing photoelectric proximity switch with adjustable detection light response distance. According to needs, a sensor such as the Lostek M18 diffuse reflection / direct reflection photoelectric infrared light switch sensor can be selected.
[0035] The photoelectric proximity switch 4 is installed on the inner side of the swing door 5 and rotates with the rotation of the swing door 5. The emission direction of the light beam 401 of the photoelectric proximity switch 4 points to the obstacle 6 close to the inner side of the swing door 5.
[0036] like Figure 3 As shown, the inner side of the swing door 5 of the present invention is: when the swing door 5 is in an open state, a pedestrian passage 501 is formed for pedestrians to pass through. At this time, the inner side of the swing door 5 is the side of the door leaf facing away from the pedestrian passage 501. Figure 3 As shown, after the swing door 5 is in the open state, the wall close to the swing door 5 is an obstacle 6 close to the inner side of the swing door 5. In some usage scenarios, the obstacle 6 may also be other objects such as vases, household appliances, and passage side walls that require the swing door 5 to control the opening range of the door leaf.
[0037] The signal output end of the judgment mechanism 3 is connected to the door controller 2 through the sensor 1, or directly connected to the door controller 2; the signal input and receiving end of the judgment mechanism 3 is connected to the signal output end of the photoelectric proximity switch 4. The door controller is a system that is provided by the automatic platform door and is used to receive instructions to control the rotation of the door leaf of the swing door 5.
[0038] The working principle of the utility model is as follows Figures 4 to 7 As shown: after receiving the door opening command information, the door controller 2 controls the driving system to drive the door leaf of the swing door 5 to rotate, and gradually opens the door from the door closed state to the door open state. During the rotation of the door leaf, when the detection field 101 formed by the sensor 1 is triggered by the target, a stop command will be sent to the door controller 2. The door controller 2 controls the driving system to stop driving the door leaf to rotate according to the stop command sent by the sensor 1. The stop command can be an electrical signal sent by the sensor 1 to the door controller 2 through an electrical connection line, or a digital signal sent to the door controller 2 through a digital signal line as needed.
[0039] like Figure 5 and Figure 6As shown, when the door leaf of the swing door 5 rotates to a certain angle, the photoelectric proximity switch 4 is triggered, thereby sending a trigger instruction to the judgment mechanism 3. The judgment mechanism 3 interrupts the signal connection relationship between the sensor 1 and the door controller 2 according to the received trigger instruction, so that even if the sensor 1 is triggered by the obstacle 6, it cannot send a stop instruction to the door controller 2, so that the door controller 2 can continue to control the door leaf of the swing door 5 to rotate to a preset opening angle. This solves the problem of the door leaf not being able to open completely in the prior art. At the same time, since the angle between the door leaf and the obstacle 6 is small at this time, the safety of the swing door 5 can be basically guaranteed.
[0040] The present invention exemplarily provides a judgment mechanism 3 , wherein a start control end of the judgment mechanism 3 is connected to a door controller 2 by signal.
[0041] The utility model exemplarily provides a photoelectric proximity switch 4 , wherein a start control end of the photoelectric proximity switch 4 is connected to a door controller 2 by a signal.
[0042] The judgment mechanism 3 and the photoelectric proximity switch 4 can be controlled and started by the door controller 2 as needed. For example, when the door controller 2 receives a door opening control instruction, it synchronously sends a start control instruction to the judgment mechanism 3 and / or the photoelectric proximity switch 4, so that the judgment mechanism 3 and / or the photoelectric proximity switch 4 are only started when they are needed.
[0043] The present invention exemplarily provides a judgment mechanism 3 , wherein a power supply end of the judgment mechanism 3 is electrically connected to the door controller 2 , or the sensor 1 , or a power supply line between the door controller 2 and the sensor 1 .
[0044] The utility model exemplarily provides a photoelectric proximity switch 4 , wherein a power supply end of the photoelectric proximity switch 4 is electrically connected to the door controller 2 , or the sensor 1 , or a power supply line between the door controller 2 and the sensor 1 .
[0045] The judging mechanism 3 and the photoelectric proximity switch 4 can be powered by the door controller 2 or the sensor 1 or the power supply line between the door controller 2 and the sensor 1 as needed to provide the power necessary for the operation of the judging mechanism 3 and the photoelectric proximity switch 4.
[0046] The present invention exemplarily provides a judgment mechanism 3, which is one of a relay, a microprocessor, and an electric control circuit switch.
[0047] The present invention provides an exemplary judgment mechanism 3, which is a normally open relay or a normally open electric control circuit switch. Figure 8 As shown, the load circuit contacts of the normally open relay or the normally open electric control circuit switch are electrically connected to the signal circuit between the sensor 1 and the door controller 2 respectively; the control circuit contacts of the normally open relay or the normally open electric control circuit switch are electrically connected to the photoelectric proximity switch 4.
[0048] At this time, when the photoelectric proximity switch 4 is not triggered, the judgment mechanism 3 is in a normally open state, the signal line between the sensor 1 and the door controller 2 is connected in an electrical signal loop, and the electrical signal sent by the sensor 1 can be received by the door controller 2. When the photoelectric proximity switch 4 is triggered, the photoelectric proximity switch 4 sends a signal to the judgment mechanism 3 so that the judgment mechanism 3 changes from a normally open state to a normally closed state. At this time, the signal line between the sensor 1 and the door controller 2 is short-circuited, and the electrical signal sent by the sensor 1 returns along the short-circuited loop of the judgment mechanism 3. At this time, the door controller 2 cannot receive the electrical signal of the sensor 1, thereby achieving the effect of interrupting the signal connection relationship between the sensor 1 and the door controller 2.
[0049] The utility model exemplarily provides an auxiliary mechanism, specifically including: a resistance device is provided between the normally open relay or the normally open electric control circuit switch and the door controller 2 in the signal line between the sensor 1 and the door controller 2; the resistance value of the resistance device is higher than the resistance value of the normally open relay or the normally open electric control circuit load line.
[0050] This arrangement can further ensure that when the signal line between the sensor 1 and the door controller 2 is short-circuited, the electrical signal sent by the sensor 1 returns along the short-circuited loop of the judgment mechanism 3 instead of being received as a valid signal by the door controller 2.
[0051] The present invention exemplarily provides a judgment mechanism 3, which is a normally closed relay or a normally closed electric control circuit switch, such as Fig. 9 As shown, the normally closed relay or normally closed electric control circuit switch is arranged on the signal circuit from which the sensor 1 outputs the signal to the door controller 2; the control end of the normally closed relay or normally closed electric control circuit switch is connected to the photoelectric proximity switch 4 signal.
[0052] At this time, when the photoelectric proximity switch 4 is not triggered, the judgment mechanism 3 is in a normally closed state, the signal line between the sensor 1 and the door controller 2 is connected in an electrical signal loop, and the electrical signal sent by the sensor 1 can be received by the door controller 2. When the photoelectric proximity switch 4 is triggered, the photoelectric proximity switch 4 sends a signal to the judgment mechanism 3 so that the judgment mechanism 3 changes from a normally closed state to a normally open state. At this time, the signal line between the sensor 1 and the door controller 2 is disconnected, and the electrical signal sent by the sensor 1 cannot be sent normally to the door controller 2, thereby achieving the effect of interrupting the signal connection relationship between the sensor 1 and the door controller 2.
[0053] The present invention exemplarily provides a judgment mechanism 3, which is a microprocessor, such as Fig.10As shown, the signal of the microprocessor is provided with two signal receiving ends and one signal output end; one signal receiving end of the microprocessor is connected to the sensor 1 signal, and the other signal receiving end is connected to the photoelectric proximity switch 4 signal; the signal output end of the microprocessor is connected to the door controller 2 signal.
[0054] At this time, when the photoelectric proximity switch 4 is not triggered, the signal sent by the sensor 1 can be received by the microprocessor and forwarded to the door controller 2. When the photoelectric proximity switch 4 is triggered, the microprocessor no longer forwards the signal sent by the sensor 1 to the door controller 2, thereby interrupting the signal connection relationship between the sensor 1 and the door controller 2.
[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A scanning sensor for a swing door, characterized in that: include: Sensor (1), photoelectric proximity switch (4), and judgment mechanism (3); The photoelectric proximity switch (4) is installed on the inner side of the swing door (5) and rotates with the rotation of the swing door (5); the emission direction of the light beam (401) of the photoelectric proximity switch (4) points to the obstacle (6) close to the inner side of the swing door (5); The signal output end of the judgment mechanism (3) is connected to the signal of the door controller (2) of the swing door through the sensor (1), or is directly connected to the signal of the door controller (2); the signal input and receiving end of the judgment mechanism (3) is connected to the signal output end of the photoelectric proximity switch (4).
2. The scanning sensor for swing doors according to claim 1, characterized in that: The start control end of the judgment mechanism (3) is connected to the door controller (2) by signal.
3. The scanning sensor for swing doors according to claim 1, characterized in that: The start control end of the photoelectric proximity switch (4) is signal-connected to the door controller (2).
4. The scanning sensor for swing doors according to claim 1, characterized in that: The power supply end of the judgment mechanism (3) is electrically connected to the door controller (2), or the sensor (1), or the power supply line between the door controller (2) and the sensor (1).
5. The scanning sensor for swing doors according to claim 1, characterized in that: The power supply end of the photoelectric proximity switch (4) is electrically connected to the door controller (2), or the sensor (1), or the power supply line between the door controller (2) and the sensor (1).
6. The scanning sensor for a swing door according to any one of claims 1 to 5, characterized in that: The judgment mechanism (3) is one of a relay, a microprocessor, and an electric control circuit switch.
7. The scanning sensor for swing doors according to claim 6, characterized in that: The judgment mechanism (3) is a normally open relay or a normally open electric control circuit switch; the load circuit contacts of the normally open relay or the normally open electric control circuit switch are respectively electrically connected to the signal circuit between the sensor (1) and the door controller (2); and the control circuit contacts of the normally open relay or the normally open electric control circuit switch are electrically connected to the photoelectric proximity switch (4).
8. The scanning sensor for swing doors according to claim 7, characterized in that: The signal line between the sensor (1) and the door controller (2) is provided with a resistor between the normally open relay or the normally open electric control line switch and the door controller (2); the resistance value of the resistor is higher than the resistance value of the normally open relay or the normally open electric control line load line.
9. The scanning sensor for a swing door according to claim 6, characterized in that: The judgment mechanism (3) is a normally closed relay or a normally closed electric control circuit switch, and the normally closed relay or the normally closed electric control circuit switch is arranged on a signal circuit for outputting a signal from the sensor (1) to the door controller (2); the control end of the normally closed relay or the normally closed electric control circuit switch is connected to the photoelectric proximity switch (4) signal.
10. The scanning sensor for swing doors according to claim 6, characterized in that: The judgment mechanism (3) is a microprocessor, and the signal of the microprocessor is provided with at least two signal receiving ends and one signal output end; one signal receiving end of the microprocessor is connected to the signal of the sensor (1), and the other signal receiving end is connected to the signal of the photoelectric proximity switch (4); and the signal output end of the microprocessor is connected to the signal of the door controller (2).