A tool to prevent wrong-way movement
By designing tools to prevent workers from accidentally entering the wrong compartment, and utilizing the linkage of microswitches and infrared sensors, the problem of nuclear power plant workers accidentally entering the wrong compartment was solved, thereby improving the safety of nuclear power plants.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CGN HUIZHOU NUCLEAR POWER CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, nuclear power plant workers are prone to accidentally entering the wrong compartment due to the easy detachment of traditional red cloth curtains, leading to power grid accidents, and there is a lack of effective alarm functions.
Design an anti-misdirection partition tool, including a housing, battery, keypad, micro switch, audible and visual alarm, infrared sensor and conductor. By connecting the monitoring circuit and alarm circuit in parallel, the micro switch and triggering component trigger the corresponding circuit when the cabinet door is opened and closed, realizing the automatic control of audible and visual alarm and infrared sensor.
This effectively prevents staff from accidentally entering the wrong compartment, improving the safety of the nuclear power plant. Through the linkage of audible and visual alarms and infrared sensors, it ensures that staff operate within the correct compartment.
Smart Images
Figure CN224457461U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nuclear power technology, and in particular to a tool for preventing wrong-waying. Background Technology
[0002] In nuclear power plant operations, preventing workers from accidentally entering other compartments is crucial for maintaining the safe and stable operation of the units. Currently, in practice, this can only be achieved through supervision by a monitor to assist and remind relevant personnel to work in the correct compartment, or by workers checking their own compartment accuracy. However, this method of preventing incorrect compartment entry has the following problems:
[0003] The traditional method to prevent workers from entering the wrong work bay is to hang a red cloth banner with the word "Operating" on the adjacent operating bay as a warning. However, this traditional method is prone to the red cloth banner falling off and lacks any alarm function, making it easy for workers to enter the wrong bay and cause power grid accidents. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a tool to prevent wrong-waying.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] An anti-misdirection interval tool, comprising:
[0007] The housing, batteries respectively mounted on the housing, a keypad for password input, micro switches, an audible and visual alarm, and an infrared sensor;
[0008] A conductor that mates with the housing;
[0009] The battery, the keypad, the micro switch, and the audible and visual alarm are electrically connected to form an alarm circuit.
[0010] The battery, the keypad, the micro switch, the conductor, and the infrared sensor are electrically connected to form a monitoring circuit; the alarm circuit is connected in parallel with the monitoring circuit.
[0011] A triggering component, which is installed inside the housing and cooperates with the micro switch;
[0012] The triggering component triggers the micro switch, connecting the alarm circuit to activate the audible and visual alarm; the monitoring circuit is then disconnected.
[0013] The triggering component de-triggers the micro switch, the monitoring circuit is connected, and the infrared sensor is activated; the alarm circuit is disconnected.
[0014] Furthermore, in the aforementioned anti-misdirection partition tool, preferably the housing is detachably mounted on the cabinet door of the partition, and the conductor is detachably mounted on the cabinet body of the partition;
[0015] When the cabinet door is opened, the triggering component triggers the micro switch;
[0016] When the cabinet door is closed, the triggering component deactivates the micro switch.
[0017] Furthermore, in the aforementioned anti-misdirection spacing tool, the anti-misdirection spacing tool preferably further includes a first fixing member for detachably mounting the housing on the cabinet door and a second fixing member for detachably mounting the conductor on the cabinet body.
[0018] Furthermore, in the aforementioned anti-misalignment spacing tool, preferably both the first fixing member and the second fixing member are permanent magnets.
[0019] Furthermore, in the aforementioned anti-misdirection interval tool, preferably, the battery is electrically connected to the password input keyboard, the password input keyboard is electrically connected to the common terminal of the micro switch, the normally closed terminal of the micro switch is electrically connected to the audible and visual alarm, and the audible and visual alarm is electrically connected to the battery to form the alarm circuit.
[0020] Furthermore, in the aforementioned anti-misdirection interval tool, preferably, the normally open terminal of the micro switch is electrically connected to the conductor, the conductor is electrically connected to the infrared sensor, and the infrared sensor is electrically connected to the battery, thereby forming the monitoring circuit.
[0021] Furthermore, in the aforementioned anti-misdirection interval tool, the triggering component preferably includes a first driving member and a second driving member respectively movably disposed within the housing;
[0022] When the cabinet door is opened, the first driving member abuts against the trigger terminal of the micro switch, so that the common terminal is electrically connected to the normally closed terminal;
[0023] When the cabinet door is closed, the second driving member drives the first driving member to release the trigger terminal of the micro switch, so that the common terminal is electrically connected to the normally open terminal.
[0024] Furthermore, in the aforementioned anti-misdirection interval tool, the first driving component is preferably a permanent magnet, and the second driving component is a spring;
[0025] One end of the spring is mounted on the inner wall of the housing near the cabinet, and the permanent magnet is mounted on the other end of the spring.
[0026] Furthermore, in the aforementioned anti-misdirection interval tool, the conductor preferably includes a body detachably mounted on the cabinet and a first contact and a second contact respectively disposed on the outer surface of the body; the first contact and the second contact are electrically connected.
[0027] The anti-misdirection spacing tool further includes a third contact and a fourth contact respectively disposed on the outer surface of the housing; the third contact is electrically connected to the normally open terminal of the micro switch, and the fourth contact is electrically connected to the infrared sensor; the third contact is electrically connected to the first contact in a contactable manner; and the fourth contact is electrically connected to the second contact in a contactable manner.
[0028] Furthermore, in the aforementioned anti-misdirection interval tool, the preferred anti-misdirection interval tool further includes a scanning display mounted on the outer surface of the housing and electrically connected to the password input keyboard.
[0029] The implementation of this utility model has the following beneficial effects: the infrared sensor monitors whether relevant personnel exceed the working range during work; and the sound and light alarm will be triggered if the personnel open the interval at the wrong time, preventing the personnel from accidentally entering the wrong interval and improving safety. Attached Figure Description
[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:
[0031] Figure 1 This is a front view structural diagram of an anti-misdirection interval tool in some embodiments of this utility model;
[0032] Figure 2 yes Figure 1 The diagram shows a top view of the structure.
[0033] Figure 3 yes Figure 1 The diagram shows the rear view structure.
[0034] Figure 4 yes Figure 1 The diagram shows a front view of the structure installed on the spacer.
[0035] Figure 5 yes Figure 4 The diagram shows a side view of the structure.
[0036] Figure 6 yes Figure 1 The circuit structure diagram shown is shown below;
[0037] Figure 7 yes Figure 6 The diagram shows the circuit structure for closing the cabinet door.
[0038] Figure 8 yes Figure 6 The circuit diagram shown illustrates the circuit structure for opening the cabinet door.
[0039] Figure 9 This is a flowchart illustrating a tool for preventing incorrect interval movement. Detailed Implementation
[0040] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.
[0041] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0042] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0043] The technical solution adopted by this utility model to solve its technical problem is:
[0044] like Figures 1 to 3 As shown, some embodiments of this utility model disclose an anti-misdirection interval tool. In some embodiments, this anti-misdirection interval tool may include a housing 10, a battery 20, a keypad 30, and a micro switch 40 (please refer to...). Figure 6 The system includes an audible and visual alarm 50, an infrared sensor 60, a conductor 70, and a trigger assembly 80. The battery 20, keypad 30, micro switch 40, audible and visual alarm 50, infrared sensor 60, and trigger assembly 80 are all housed within the housing 10. The conductor 70 is electrically connected to the battery 20, micro switch 40, and infrared sensor 60. The housing 10 is detachably mounted on the cabinet door 200 of the distribution cabinet (partition) (see reference). Figure 4 and Figure 5 The conductor 70 is detachably installed on the cabinet 100 of the distribution cabinet. The battery 20, the keypad 30, the micro switch 40, and the audible and visual alarm 50 are electrically connected to form an alarm circuit; the battery 20, the keypad 30, the micro switch 40, the conductor 70, and the infrared sensor 60 are electrically connected to form a monitoring circuit.
[0045] Please refer to Figure 7 and Figure 8 As shown, when cabinet door 200 is opened, trigger component 80 triggers micro switch 40, connecting the alarm circuit to activate audible and visual alarm 50, alerting staff to the wrong area. When cabinet door 200 is closed, trigger component 80 deactivates micro switch 40, connecting the monitoring circuit to activate infrared sensor 60, detecting the approach of staff.
[0046] For reference Figure 5 In some embodiments, the anti-misdirection spacing tool may further include a first fixing member 11 disposed within the housing 10 and a second fixing member 74 for detachably mounting the conductor 70 onto the cabinet 100. Specifically, both the first fixing member 11 and the second fixing member 74 are permanent magnets. Understandably, the housing 10 and the conductor 70 can be respectively attracted to the cabinet door 200 or the cabinet 100 by permanent magnets. When the cabinet door 200 is opened, the housing 10 moves along with the cabinet door 200, and the housing 10 detaches from the conductor 70.
[0047] In some embodiments, battery 20 is electrically connected to keypad 30, keypad 30 is electrically connected to the common terminal of microswitch 40, normally closed terminal of microswitch 40 is electrically connected to audible and visual alarm 50, and audible and visual alarm 50 is electrically connected to battery 20, forming an alarm circuit. Understandably, when cabinet door 200 is opened, trigger assembly 80 triggers microswitch 40, causing its common terminal to connect to its normally closed terminal. At this time, battery 20, keypad 30, common terminal and normally closed terminal of microswitch 40, and audible and visual alarm 50 form a power supply circuit. When keypad 30 inputs an interval number, the circuit is activated, controlling battery 20 to power audible and visual alarm 50, which then activates the alarm.
[0048] Please refer to Figure 6 As shown, in some embodiments, the normally open terminal of the micro switch 40 is electrically connected to the conductor 70, the conductor 70 is electrically connected to the infrared sensor 60, and the infrared sensor 60 is electrically connected to the battery 20 to form the monitoring loop shown. Understandably, when the cabinet door 200 is closed, the trigger assembly 80 de-triggers the micro switch 40, causing its common terminal to be electrically connected to the normally open terminal. At this time, the circuit between the battery 20, the keypad 30, the common terminal and normally open terminal of the micro switch 40, the conductor 70, and the infrared sensor 60 is connected. When the keypad 30 inputs an interval number, the circuit is activated, the battery 20 supplies power to the infrared sensor 60, and the infrared sensor 60 is activated.
[0049] For reference Figure 8 In some embodiments, the conductor 70 may include a body 71, a first contact 72, and a second contact 73. The body 71 has a housing structure, and a second fixing member 74 is disposed within the body 71; alternatively, the second fixing member 74 may be disposed on the surface of the body 71. The first contact 72 and the second contact 73 are respectively disposed on the surface of the body 71, and are electrically connected via a wire. It is understood that the second fixing member 74 (a permanent magnet) magnetically attracts the body 71 to the cabinet 100.
[0050] In some embodiments, the anti-misdirection interval tool also includes a third contact 12 and a fourth contact 13 respectively disposed on the outer surface of the housing 10; the third contact 12 is electrically connected to the normally open terminal of the micro switch 40, and the fourth contact 13 is electrically connected to the infrared sensor 60; the third contact 12 is electrically connected to the first contact 72; and the fourth contact 13 is electrically connected to the second contact 73. Understandably, the battery 20, the password input keyboard 30, the micro switch 40, the third contact 12, the first contact 72, the second contact 73, the fourth contact 13, and the infrared sensor 60 are connected in series via wires.
[0051] When the cabinet door 200 is closed, the third contact 12 corresponds to the first contact 72, and the third contact 12 and the first contact 72 are in contact with each other. The fourth contact 13 also corresponds to the second contact 73, and the fourth contact 13 and the second contact 73 are in contact with each other.
[0052] It should be noted that the housing 10 is provided with a structure for limiting the conductor 70. For example, a groove is provided on the side of the housing 10 corresponding to the conductor 70. In use, the conductor 70 is first installed on the cabinet 100, and then the housing 10 is installed on the cabinet door 200, with the groove aligned with the conductor 70, so that after the cabinet door 200 is opened and then closed, the third contact 12 on the housing 10 is in contact with the first contact 72, and the fourth contact 13 is in contact with the second contact 73.
[0053] Of course, in other embodiments, the cabinet door 200 is provided with a structure that limits the housing 10, and the cabinet body 100 is provided with a structure that limits the conductor 70, so that after the cabinet door 200 is opened and then closed, the third contact 12 and the first contact 72 are in contact with each other, and the fourth contact 13 and the second contact 73 are in contact with each other.
[0054] Continue to refer to Figure 6 and Figure 7 In some embodiments, the triggering component 80 may include a first driving member 81 and a second driving member 82. The first driving member 81 is movably disposed within the housing 10, and the second driving member 82 is disposed between the housing 10 and the first driving member 81. When the cabinet door 200 is opened, the second driving member 82 drives the first driving member 81 to approach the micro switch 40, abutting against the trigger terminal of the micro switch 40, so that the common terminal of the micro switch 40 is electrically connected to the normally closed terminal of the micro switch 40.
[0055] When the cabinet door 200 is closed, the first drive member 81 pushes the second drive member 82 to move towards the cabinet 100 to release the trigger terminal of the micro switch 40 so that the common terminal of the micro switch 40 is electrically connected to the normally open terminal of the micro switch 40.
[0056] In some embodiments, the first driving element 81 can be a permanent magnet, and in some embodiments, the second driving element 82 can be a spring. When the cabinet door 200 is closed, the permanent magnets attract each other magnetically when they approach the second fixing member 74 (permanent magnet) of the conductor 70, and compress the spring to move closer to the cabinet 100. When the cabinet door 200 is opened, the housing 10 moves with the cabinet door 200, the housing 10 disengages from the conductor 70, the magnetic attraction between the permanent magnet (first driving element 81) inside the housing 10 and the second fixing member 74 inside the conductor 70 decreases, and the spring pushes the permanent magnet toward the micro switch 40 by elastic force, and abuts against the trigger end of the micro switch 40.
[0057] Refer again Figure 1 and Figure 2 In some embodiments, the anti-misdirection interval tool also includes a scanning display 14 mounted on the outer surface of the housing 10 and electrically connected to the keypad 30. In some embodiments, a control system electrically connected to the keypad 30 is also included for recording operation logs, managing passwords, or dynamic authorization information. After the operator enters the password corresponding to the interval number using the keypad 30, the control system controls the battery 20 to power the audible and visual alarm 50 or the infrared sensor 60; it also powers the scanning display 14. The control system also controls the scanning display 14 to generate a QR code. The operator can scan the QR code to display the status of that interval, obtain maintenance task information and equipment status in real time, and record the operator's operation records for easy subsequent traceability and management. In other words, different interval numbers are entered into the keypad 30, and the control system controls the scanning display 14 to generate different QR codes to record the status of each interval (maintenance task and authorization information).
[0058] In some embodiments, the password input keyboard 30 may be a physical keyboard or a virtual on-screen keyboard.
[0059] The following section will further explain the anti-misdirection interval tool in conjunction with its usage.
[0060] like Figure 9 As shown, when using the anti-misdirection interval tool: the housing 10 is installed on the cabinet door 200 via the first fixing member 11, and the conductor 70 is installed on the cabinet body 100 via the second fixing member 74; then the interval number is entered using the input password key 309;
[0061] When the cabinet door 200 is closed, the third contact 12 contacts the first contact 72, the fourth contact 13 contacts the second contact 73, the first driving member 81 magnetically attracts the second fixing member 74, and compresses the second driving member 82 close to the conductor 70 (or cabinet 100). At this time, the first driving member 81 releases the trigger end of the micro switch 40, and the common end of the micro switch 40 contacts the normally open end. The monitoring circuit formed by the battery 20, the password input keyboard 30, the micro switch 40, the conductor 70, and the infrared sensor 60 is connected. The infrared sensor 60 monitors the specified working range to prevent personnel from entering other compartments.
[0062] When the cabinet door 200 is opened, the cabinet door 200 moves along with the housing 10, causing its third contact 12 to disengage from the first contact 72 and its fourth contact 13 to disengage from the second contact 73. The magnetic attraction between the first driving member 81 and the second fixing member 74 is less than the elastic force of the second driving member 82. The second driving member 82 pushes the first driving member 81 to move towards the micro switch 40 and abut against the trigger end. The common terminal of the micro switch 40 is electrically connected to the normally closed terminal. The alarm circuit formed by the battery 20, the password input keyboard 30, the micro switch 40, the conductor 70, and the audible and visual alarm 50 is connected, and the audible and visual alarm 50 is activated.
[0063] It should be noted that, for those skilled in the art, without departing from the concept of this utility model, the above-mentioned technical features can be freely combined, and several modifications and improvements can be made, all of which fall within the protection scope of this utility model.
Claims
1. A wrong way interval prevention tool for preventing entry into an interval, characterized by, include: The housing (10), the battery (20) respectively installed on the housing (10), the password input keypad (30), the micro switch (40), the audible and visual alarm (50) and the infrared sensor (60); Conductor (70), which cooperates with the housing (10); The battery (20), the password input keyboard (30), the micro switch (40), and the audible and visual alarm (50) are electrically connected to form an alarm circuit; The battery (20), the password input keyboard (30), the micro switch (40), the conductor (70), and the infrared sensor (60) are electrically connected to form a monitoring circuit; the alarm circuit is connected in parallel with the monitoring circuit. A trigger assembly (80) is installed inside the housing (10) and cooperates with the micro switch (40); The triggering component (80) triggers the micro switch (40), the alarm circuit is connected, and the audible and visual alarm (50) is activated; the monitoring circuit is disconnected. The triggering component (80) de-triggers the micro switch (40), the monitoring circuit is connected, and the infrared sensor (60) is activated; the alarm circuit is disconnected.
2. The misplacement prevention spacer tool of claim 1, wherein, The housing (10) is detachably installed on the cabinet door of the partition, and the conductor (70) is detachably installed on the cabinet body of the partition; When the cabinet door is opened, the triggering component (80) triggers the micro switch (40); When the cabinet door is closed, the triggering component (80) de-triggers the micro switch (40).
3. The misalignment prevention spacer tool of claim 2, wherein, The anti-misdirection interval tool also includes a first fastener (11) for detachably mounting the housing (10) on the cabinet door and a second fastener (74) for detachably mounting the conductor (70) on the cabinet body.
4. The misalignment prevention spacer tool according to claim 3, characterized by Both the first fixing member (11) and the second fixing member (74) are permanent magnets.
5. The misalignment prevention spacer tool of claim 2, wherein, The battery (20) shown is electrically connected to the password input keyboard (30), the password input keyboard (30) is electrically connected to the common terminal of the micro switch (40), the normally closed terminal of the micro switch (40) is electrically connected to the audible and visual alarm (50), and the audible and visual alarm (50) shown is electrically connected to the battery (20) to form the alarm circuit.
6. The misalignment prevention spacer tool of claim 5, wherein, The normally open terminal of the micro switch (40) is electrically connected to the conductor (70), the conductor (70) is electrically connected to the infrared sensor (60), and the infrared sensor (60) is electrically connected to the battery (20) to form the monitoring circuit.
7. The wrong way prevention spacing tool of claim 6, wherein, The triggering component (80) includes a first driving member (81) and a second driving member (82) respectively movably disposed within the housing (10); When the cabinet door is opened, the first drive member (81) abuts against the trigger end of the micro switch (40) so that the common terminal is electrically connected to the normally closed terminal; When the cabinet door is closed, the second drive (82) drives the first drive (81) to release the trigger end of the micro switch (40) so that the common terminal is electrically connected to the normally open terminal.
8. The wrong way prevention spacer tool of claim 7, wherein, The first driving element (81) is a permanent magnet, and the second driving element (82) is a spring; One end of the spring is mounted on the inner wall of the housing (10) near the cabinet, and the permanent magnet is mounted on the other end of the spring.
9. The misalignment prevention spacer tool of claim 6, wherein, The conductor (70) includes a body (71) detachably mounted on the cabinet and a first contact (72) and a second contact (73) respectively disposed on the outer surface of the body (71); the first contact (72) and the second contact (73) are electrically connected. The anti-misdirection interval tool also includes a third contact (12) and a fourth contact (13) respectively disposed on the outer surface of the housing (10); the third contact (12) is electrically connected to the normally open terminal of the micro switch (40), and the fourth contact (13) is electrically connected to the infrared sensor (60); the third contact (12) is electrically connected to the first contact (72) in a contactable manner; and the fourth contact (13) is electrically connected to the second contact (73) in a contactable manner.
10. The misplacement prevention spacer tool of claim 1, wherein, The anti-misdirection interval tool shown also includes a scanning display (14) mounted on the outer surface of the housing (10) and electrically connected to the password input keyboard (30).