Locking protection device and method and electronic equipment

Abstract

The embodiment of the invention provides a locking protection device and method and electronic equipment. The locking protection device is used for the air pipe connector and comprises a locking mechanism, the locking mechanism comprises a lock catch ring and a clamping groove, the clamping groove is formed in the inner wall of the lock catch ring, the lock catch ring is provided with an initial position and a locking position which are telescopic in the radial direction, and at the initial position, the air pipe connector is in clearance fit with the locking mechanism; at the locking position, the protrusion on the side wall of the periphery of the air pipe connector is connected with the clamping groove in an embedded mode, and the air pipe connector is in interference fit with the locking mechanism. Therefore, the lock catch ring can reliably lock the air pipe connector at the locking position, the performance of the air pipe connector is improved, and the probability that an air pipe falls off from the air pipe connector due to looseness of the air pipe connector is reduced. In addition, the lock catch ring can be detached from the air pipe connector at the initial position, and then detachable connection of the locking protection device and the air pipe connector is achieved.

Description

Technical Field

[0001] This application relates to the field of electric locomotive technology, and in particular to locking protection devices, methods and electronic equipment for duct connectors. Background Technology

[0002] When two or more electric locomotives are coupled together, the air ducts mainly include the main air duct, the averaging duct, and the brake duct. These air ducts are physically connected to each other to cooperate and ensure the braking synchronization, air supply stability, and normal operation of the auxiliary systems of the coupled locomotives.

[0003] In related technologies, duct connectors can be used to connect two sections of duct or duct to equipment. However, vibration or external force can easily cause the duct connector to loosen, thereby affecting its performance. Summary of the Invention

[0004] The purpose of this application is to provide a locking protection device, method, and electronic device for duct connectors, which can solve the problem of poor performance of duct connectors.

[0005] To solve the above-mentioned technical problems, the embodiments of this application are implemented through the following aspects.

[0006] In a first aspect, embodiments of this application provide a locking protection device for a duct connector. The locking protection device includes a locking mechanism, which includes a locking ring and a slot. The slot is circumferentially disposed on the inner wall of the locking ring. The locking ring has an initial position and a locked position that are retractable in the radial direction. In the initial position, the duct connector is clearance-fitted with the locking mechanism. In the locked position, a protrusion on the outer peripheral sidewall of the duct connector engages with the slot, and the duct connector is interference-fitted with the locking mechanism.

[0007] Secondly, embodiments of this application provide a locking protection method applied to the locking protection device as described in the first aspect. The method includes: acquiring the pressure value of the pressure sensor and the displacement of the displacement sensor; determining that the duct connector is in an effective locking state when the pressure value of the pressure sensor is within a first preset range and the displacement of the displacement sensor is within a second preset range; and determining that the duct connector is in an unlocked or loosely connected state when the pressure value of the pressure sensor exceeds the first preset range or the displacement of the displacement sensor exceeds the second preset range, and issuing a prompt message. Thirdly, embodiments of this application provide an electronic device, characterized in that it includes a locking protection device as described in the first aspect, and a monitoring terminal.

[0008] In this embodiment, the locking protection device can be used for a duct connector. The locking protection device includes a locking mechanism comprising a locking ring and a slot. The slot is disposed on the inner wall of the locking ring. The locking ring has an initial position and a locked position that are retractable in the radial direction. In the initial position, the duct connector is clearance-fitted with the locking mechanism. In the locked position, a protrusion on the outer peripheral sidewall of the duct connector engages with the slot, and the duct connector is interference-fitted with the locking mechanism. Therefore, the locking ring can reliably lock and protect the duct connector in the locked position, improving the performance of the duct connector and reducing the probability of the duct loosening and causing the duct to detach. Furthermore, the locking ring can be detached from the duct connector in the initial position, thus achieving a detachable connection between the locking protection device and the duct connector. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This illustration shows a structural schematic diagram of a locking protection device provided in an embodiment of this application; Figure 2 This diagram shows a structural schematic of the locking protection device provided in an embodiment of this application from another perspective; Figure 3 This illustration shows a structural schematic diagram of a limiting component in a locking protection device provided in an embodiment of this application; Figure 4 This illustration shows a flowchart of a locking protection method provided in an embodiment of this application.

[0011] Figure label: 100-Lock-off protection device; 11-Lock ring; 12-Slot; 13-Push rod; 14-Electromagnetic coil; 15-Reset elastic element; 16-Limit block; 17-Adjusting bolt; 18-Slide groove; 21-Pressure sensor; 22-Displacement sensor; 23-Temperature sensor; 31-Signal processing unit; 32-Wireless communication unit; 33-Storage unit; 41-Flange; 42-Bolt hole. Detailed Implementation

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

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

[0014] When two or more electric locomotives are coupled together, the air ducts mainly include the main air duct, the averaging duct, and the brake duct. These air ducts are physically connected to each other to cooperate and ensure the braking synchronization, air supply stability, and normal operation of the auxiliary systems of the coupled locomotives.

[0015] In related technologies, duct connectors can be used to connect two sections of duct or duct to equipment. However, vibration or external force can easily cause the duct connector to loosen, thus affecting its performance. To improve the performance of the duct connector, related technologies require manual fixation using wire or cable ties. This method is prone to loosening due to operational negligence and still poses a significant safety hazard.

[0016] To solve this technical problem, participants Figure 1 and Figure 2This application provides a locking protection device 100, which can be used for duct connectors to improve the performance of duct connectors and provide locking protection to prevent the duct connector from loosening and causing the duct to fall out, thereby achieving a reliable connection between the duct connector and the duct. The locking protection device 100 of this application embodiment may include a locking mechanism, which includes a locking ring 11 and a slot 12. The slot 12 is circumferentially disposed on the inner wall of the locking ring 11. The locking ring 11 has an initial position and a locked position that are retractable in the radial direction. In the initial position, the duct connector is clearance-fitted with the locking mechanism (or the locking ring 11), so the duct connector can slide axially within the locking ring 11. For example, the protrusion on its outer periphery can slide until it is aligned circumferentially and axially with the slot 12 of the locking mechanism. In the locked position, the protruding slot 12 on the outer peripheral side wall of the duct connector is inserted into the duct connector and the locking mechanism (or locking ring 11) is press-fitted to achieve the embedded connection between the duct connector and the locking protection device 100. Thus, the locking mechanism locks the duct connector, thereby preventing the duct connector from loosening.

[0017] In the initial position, the duct connector is slid until the protrusion on its outer periphery is aligned with the slot 12 of the locking mechanism in both the circumferential and axial directions. Then, the locking ring 11 of the locking protection device 100 is switched to the locked position, and the inner diameter of the locking ring 11 becomes smaller (i.e., the inner diameter of the locking ring 11 becomes smaller), and the slot 12 on it is embedded in the protrusion of the duct connector, thus achieving the engagement of the two.

[0018] Of course, the diameter of the protrusion on the outer periphery of the duct connector can be used as the outer periphery diameter of the duct connector. In the initial position, the outer periphery diameter (the diameter of the protrusion) of the duct connector can be less than or equal to the inner wall diameter of the locking ring 11; while in the locked position, the outer periphery diameter (the diameter of the protrusion) of the duct connector can be greater than the inner wall diameter of the locking ring 11, so that the protrusion can be inserted into the slot 12.

[0019] In this embodiment, the locking ring 11 can reliably lock the duct connector in the locked position, improving the reliability of the duct connector and preventing the duct from falling out due to loosening of the duct connector, thereby achieving a reliable connection between the duct connector and the duct. Moreover, the locking ring 11 can be detached from the duct connector in the initial position, thereby achieving a detachable connection between the locking protection device 100 and the duct connector.

[0020] In this embodiment of the application, the inner sidewall corresponding to the protrusion on the duct connector is the part connected to the duct. Through the locking protection device 100 of this embodiment of the application, after the duct connector is connected, the locking mechanism can lock the connection part between the duct connector and the duct, preventing the duct from loosening from the duct connector due to vibration or external force.

[0021] In this embodiment, the locking protection device 100 may further include a status detection component and a feedback module. The status detection component may be disposed on the locking ring and used to detect the connection status between the locking protection device and the duct connector. The connection status includes the duct connector being in a valid locked state, or the duct connector being in an unlocked or loosely connected state.

[0022] The feedback module can be connected to the status detection component and the monitoring terminal to feed back the connection status information to the monitoring terminal. Thus, the monitoring terminal can monitor the connection status between the locking protection device and the duct connector, enabling timely prevention or detection of faults and reducing the probability of fault occurrence.

[0023] The locking ring 11 can be a ring structure, which can be an open ring or a closed ring.

[0024] The slots 12 can be evenly distributed circumferentially on the inner wall of the locking ring 11; correspondingly, the protrusions on the outer peripheral sidewall of the duct connector that matches the slots 12 can also be evenly distributed circumferentially. Of course, as a variation, the slots 12 may not be evenly distributed circumferentially on the inner wall of the locking ring 11.

[0025] In one embodiment, the locking mechanism may further include a drive unit and a transmission unit (not shown), wherein the transmission unit is connected between the drive unit and the locking ring 11, and the transmission unit is used to transmit the driving force of the drive unit to the locking ring 11.

[0026] The drive unit may include a push rod 13, which may be disposed on the radial surface of the locking ring 11. After a driving force is applied to the push rod 13, the transmission unit transmits the driving force to the locking ring 11 to drive the locking ring 11 to switch from the initial position to the locked position.

[0027] The transmission unit can be located inside the locking ring 11.

[0028] In one embodiment, the push rod 13 can be pushed axially or rotated circumferentially. In this case, a transmission unit is not required; instead, the locking ring 11 is contracted radially by external force (the locking ring 11 switches from the initial position to the locked position). For example, the locking ring 11 can be made of an elastic material, and the integral elastic ring can undergo radial elastic deformation by axial or circumferential force. After the external force is removed, it can be elastically reset by the material. This is prior art and will not be described in detail here.

[0029] In another embodiment, the transmission unit inside the locking ring 11 may include a transmission mechanism such as a thread, gear, or cam to drive the locking ring 11 to move radially synchronously, thereby expanding / reducing the overall diameter. This is prior art and will not be described in detail here. You can refer to the principle of a pipe expander.

[0030] In one embodiment, the locking mechanism may further include a reset elastic element 15 and a housing (not shown). The reset elastic element 15 may be disposed on the same radial plane as the push rod 13 on the locking ring 11. The housing houses the reset elastic element 15, the push rod 13, and the locking mechanism. The two ends of the reset elastic element 15 may be connected to the housing and the locking ring 11, respectively. The drive unit may be electrically driven. When the power supply to the drive unit is reduced or removed, the reset elastic element 15 can drive the locking ring 11 to switch from the locked position to the initial position. Thus, through the cooperation of the drive unit and the reset elastic element 15, the locking ring 11 can switch back and forth between the initial position and the locked position.

[0031] The housing may have a surface for connecting the reset elastic element 15, which is located on the side of the drive unit and the reset elastic element 15 away from the locking ring 11.

[0032] When the duct connector is inserted into the locking ring 11, the drive unit pushes the locking ring 11 to move, so that the slot 12 engages with the protrusion of the duct connector, thereby achieving mechanical locking; when disassembly is required, the drive unit can reverse the action, and the reset elastic element 15 drives the locking ring 11 to disengage from the slot 12, thus releasing the lock.

[0033] In one possible implementation, the drive unit may include an electromagnetic coil 14, which can be mounted on the housing of the locking mechanism. The electromagnetic coil 14 contains an iron core. One end of the push rod 13 near the housing is fixedly connected to the iron core, and the other end contacts the end of the locking ring 11. When the electromagnetic coil 14 is energized, the iron core drives the push rod 13 to move, thereby pushing the locking ring 11 into the locked position. The electromagnetic coil 14 can be powered by DC 12V~24V for compatibility with vehicle power systems. The end of the push rod 13 near the locking ring 11 may have a ball bearing structure to reduce friction between the push rod 13 and the locking ring 11, thus improving service life.

[0034] Of course, as a variation, the drive unit may not include the electromagnetic coil 14, but instead apply driving force to the push rod 13 by setting a handle. The handle can be connected to the push rod 13 and extend to the outside of the housing of the locking mechanism. The operator can directly apply driving force to the handle to drive the push rod 13. As another variation, the drive unit may not include the electromagnetic coil 14, but instead apply driving force to the push rod 13 by a pneumatic piston.

[0035] In one possible implementation, the housing of the locking mechanism can be made of high-strength aluminum alloy with an anodized surface, providing excellent corrosion resistance and wear resistance. The housing thickness can be 3mm to 5mm, ensuring structural strength while reducing overall weight for easy carrying and installation. The locking ring 11 can be made of stainless steel, which is hard and resistant to deformation, maintaining stable performance over long-term use.

[0036] In one possible implementation, the reset elastic element 15 can be a helical spring with an elastic coefficient of 50 N / mm to 100 N / mm, capable of quickly pushing the locking ring 11 back to its original position when the drive unit is released. The two ends of the helical spring are fixed to the housing and the locking ring 11 respectively, using a threaded connection for easy disassembly and replacement. The surface of the helical spring can be coated with an anti-rust coating to effectively prevent corrosion caused by humid environments.

[0037] In one embodiment, the slot 12 can be a variable cross-section structure, and the effective width of the slot 12 gradually decreases from the opening on the inner wall of the locking ring 11 to the bottom of the slot, which facilitates self-guiding function when the protrusion of the duct connector is inserted, reducing assembly difficulty. The slot 12 can be a wedge-shaped slot with a trapezoidal cross-section that linearly narrows. Of course, as a side adjustment, the cross-section of the slot 12 can be circular or other shapes instead of trapezoidal.

[0038] In one embodiment, the locking protection device 100 may include a status detection component, which may be disposed on the locking ring and used to detect the connection status between the locking protection device and the duct connector.

[0039] The condition detection component may include a pressure sensor 21, which can be disposed on the inner wall of the locking ring 11 at a position for contacting the outer peripheral sidewall of the duct connector. This position may not be the location of the slot 12 or the protrusion to avoid interference with the engagement of the slot 12 and the protrusion. The pressure sensor 21 can be used to detect pressure changes at the joint of the duct connector. In one possible implementation, a strain gauge can be used to implement the function of the pressure sensor 21.

[0040] The state detection component may include a displacement sensor 22, which may be disposed on the outer wall of the locking ring 11. The position of the displacement sensor 22 should preferably avoid interfering with the engagement of the slot 12 and the protrusion. The displacement sensor 22 can be used to detect the radial displacement of the locking ring 11. In one possible embodiment, a photoelectric encoder can be used to implement the function of the displacement sensor 22.

[0041] The status detection component may include a temperature sensor 23, which may be located on the inner wall of the locking ring 11 at a position that fits against the outer peripheral side wall of the duct connector. Of course, this position is not the location of the slot 12 or the protrusion, so as to avoid interfering with the engagement of the slot 12 and the protrusion.

[0042] In one embodiment, the locking protection device 100 may include a feedback module, which can be connected to the status detection component and the monitoring terminal to feed back connection status information to the monitoring terminal. Thus, the monitoring terminal can monitor the connection status between the locking protection device and the duct connector, enabling timely prevention or detection of faults and reducing the probability of fault occurrence.

[0043] The feedback module may include a signal processing unit 31 and a wireless communication unit 32. The signal processing unit 31 is connected to the state detection component, specifically to each sensor in the state detection component. The signal processing unit 31 collects signals from each sensor in the state detection component, processes them, and outputs the data. This processing may include filtering, conditioning, or conversion to obtain output data. The wireless communication unit 32 connects the signal processing unit 31 to a monitoring terminal, transmitting the data output by the signal processing unit 31 to the monitoring terminal so that staff can determine the operating status of the locking protection device 100 based on this data.

[0044] The signal processing unit 31 can use a microcontroller or MCU as its core processor, operating at a frequency of 16MHz, and possesses high data processing capabilities. The wireless communication unit 32 can use the LoRa module's communication protocol, with a transmission distance of up to 500 meters, suitable for the complex working environment of electric locomotives. Of course, the wireless communication unit 32 can also use NB-IoT, Zigbee, or 4G modules instead of LoRa modules.

[0045] The power supply control of the electromagnetic coil 14 in the drive unit can be controlled by the signal processing unit 31. In one embodiment, the signal processing unit 31 can supply or de-energize the electromagnetic coil 14 in the drive unit according to the instructions sent from the monitoring terminal; in another embodiment, the power supply control of the electromagnetic coil 14 in the drive unit can be controlled by a switch or button located outside the housing of the locking mechanism. In this case, the operator can change the position of the locking ring 11 by using the switch or button outside the housing of the locking mechanism. For example, when the switch or button is in the energized position, the locking ring 11 can be switched to the locked position.

[0046] In one embodiment, the locking protection device 100 may include a storage unit 33, which can be connected to a signal processing unit 31 to store data output by the signal processing unit 31. This allows the monitoring terminal to retrieve historical data related to the status detection component from the storage unit 33 when needed. The storage unit 33 may be a flash memory chip with a capacity of 8GB, capable of storing at least one month's worth of data records.

[0047] In one implementation, the reference Figure 3 The locking protection device 100 may include a limiting component, which may be disposed on the radial surface of the locking ring 11 to limit the range of movement of the locking ring 11.

[0048] The limiting assembly may include a limiting block 16 and an adjusting bolt 17. The limiting block 16 can be mounted on the housing and has a groove 18 on its inner side. The adjusting bolt 17 passes through the groove 18 and contacts the radial surface of the locking ring 11. The length of the limiting assembly can be changed by rotating the adjusting bolt 17, thereby adjusting the initial position of the locking ring 11. The end of the adjusting bolt 17 may be provided with a rubber pad to reduce wear between it and the locking ring 11 and extend its service life.

[0049] In one embodiment, the locking protection device 100 may further include a flange 41, which is disposed on the radial surface of the locking ring 11 and can be disposed opposite to the drive unit and the reset elastic element 15, that is, the flange 41 and the drive unit and the reset elastic element 15 are respectively disposed on two opposing radial surfaces of the locking ring 11. The locking protection device 100 can be connected to the duct connector via the flange 41. The flange 41 may have a diameter of 100 mm and multiple axially penetrating bolt holes 42 for easy mating with the interface flange of the duct connector. The bolt holes 42 can be evenly arranged circumferentially, and the number of bolt holes 42 can be 4, 5, or 6, etc. The surface of the flange 41 may be provided with a sealing ring to prevent dust and moisture from entering the locking mechanism. The sealing ring may be made of silicone, which has good elasticity and aging resistance.

[0050] In one possible implementation, the flange 41 and the locking ring 11 may be concentrically arranged, with the inner diameter of the flange 41 being larger than the inner diameter (inner wall diameter) of the locking ring 11, and also larger than the inner diameter of the locking ring 11 in the initial position, so as not to interfere with the fit between the duct connector and the locking ring 11.

[0051] When the protrusion of the duct connector is inserted into the slot 12 of the locking mechanism, the duct connector is fully inserted into the locking ring 11 and locked. At this time, the pressure value detected by the pressure sensor 21 reaches the preset range, and the displacement sensor 22 detects that the displacement of the locking ring 11 meets the locking requirements. The feedback module can transmit the above information to the monitoring terminal, indicating that the duct connector is in a normal connection state. The feedback module includes the aforementioned signal processing unit 31 and wireless communication unit 32.

[0052] Temperature sensor 23 can be used to detect temperature changes at the connection point with the duct connector. When the temperature of the duct connector rises due to prolonged use, temperature sensor 23 transmits the temperature data to the feedback module, allowing the monitoring terminal to take timely measures. The temperature sensor 23 has a measurement range of -40℃ to 120℃ and an accuracy of ±1℃, meeting the environmental requirements of electric locomotives.

[0053] In one possible implementation, the locking protection device 100 can be installed in the automatic coupler docking mechanism system to achieve fully automatic integrated operation of coupler connection, air duct locking and status reporting, which is suitable for intelligent multiple-unit locomotives.

[0054] In this embodiment, the locking mechanism, through the cooperation of the locking ring 11 and the drive unit, can quickly achieve mechanical locking of the duct connector, simplifying the operation process and shortening the operation time.

[0055] In this embodiment, the status detection component can accurately determine the connection status of the duct connector through the joint detection of pressure sensor 21 and displacement sensor 22, thereby improving the reliability of the connection.

[0056] In this embodiment, the connection status information is transmitted to the monitoring terminal through the wireless communication unit 32, thereby realizing the remote monitoring function and facilitating timely detection and handling of abnormal situations.

[0057] In this embodiment, the housing and locking ring 11 of the locking mechanism are made of high-strength materials, which have good corrosion resistance and wear resistance, and can work stably for a long time in harsh environments.

[0058] In this embodiment, the locking mechanism can be installed on the outer periphery of the reconnected duct connector to achieve mechanical locking of the duct connector. The pressure sensor 21 and temperature sensor 23 in the status detection component are disposed on the inner side of the locking mechanism and are attached to the mating part of the duct connector to detect the connection status. The signal processing module is connected between each sensor in the status detection component and the wireless communication unit 32, and the wireless communication unit 32 is connected to the monitoring terminal, thereby transmitting the connection status information to the monitoring terminal. Through the above technical solution, after the duct connector is connected, the locking mechanism can automatically lock the connection part to prevent loosening caused by vibration or external force. At the same time, the status detection component monitors the connection status in real time and feeds the information back to the monitoring terminal, thereby realizing status monitoring of the duct connector.

[0059] This application also provides a locking protection method. Figure 4 A flowchart illustrating the locking protection method is shown. This locking protection method can be applied to the locking protection device described in the above embodiments, for example, to the signal processing unit within the locking protection device, or, for example, to a monitoring terminal. The method may include the following steps: Step S402: Collect the pressure value of the pressure sensor and the displacement of the displacement sensor.

[0060] Step S404: If the pressure value of the pressure sensor is within a first preset range and the displacement of the displacement sensor is within a second preset range, determine that the duct connector is in an effective locking state. For example, if the pressure value P detected by the pressure sensor and the displacement L detected by the displacement sensor are obtained, and if P ∈ [P1, P2] and L ≥ L0, then determine that the duct connector is in an effective locking state. Here, P1-P2 is the first preset range, and L0 to infinity can be the second preset range.

[0061] Step S406: If the pressure value of the pressure sensor exceeds the first preset range and / or the displacement of the displacement sensor exceeds the second preset range, determine that the duct connector is in an unlocked or loosely connected state and issue a prompt message.

[0062] Of course, the prompt message can be issued by the locking protection device, and it can be a voice prompt or a text message. In one possible implementation, the prompt message can be issued through the monitoring terminal, and it can be a voice prompt or a text push message.

[0063] The above-mentioned locking protection method may also include the following steps.

[0064] Step A1: When the drive unit is powered on, the locking ring is in the locked position; Step A2: When the power supply to the drive unit is removed or reduced, the locking ring is in its initial position under the action of the reset elastic element.

[0065] The above-mentioned locking protection method can achieve mechanical locking of the duct connector, reducing the probability of the duct falling off the duct connector.

[0066] Taking a pressure sensor as an example, when the detected pressure value is lower than the preset pressure value, it indicates that the fit between the duct connector and the locking protection device is loose, posing a risk that the duct connector may detach from the locking protection device, or in other words, the duct may fall off the duct connector. Therefore, a warning message regarding the pressure value can be issued. Taking a position sensor as an example, when it detects that the displacement of the locking ring is outside the reasonable range, it may indicate that the duct connector is not properly engaged within the locking ring, or that the locking ring is jammed and cannot switch positions. Therefore, a warning message regarding the displacement can be issued.

[0067] The locking protection method of this application can achieve the technical effects that the locking protection device described above can achieve, and will not be repeated here.

[0068] This application also provides an electronic device, which may include the aforementioned locking protection device and a monitoring terminal. The monitoring terminal can be connected to the wireless communication unit in the locking protection device to obtain the connection status of the locking ring of the locking protection device and the duct connector, and issue prompts when necessary.

[0069] In summary, the above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

[0070] The MCU described in the above embodiments can be implemented by a computer chip or physical entity, or by a product with a certain function. A typical implementation device is a computer. Specifically, the computer can be, for example, a personal computer, laptop computer, cellular phone, camera phone, smartphone, personal digital assistant, media player, navigation device, email device, game console, tablet computer, wearable device, or any combination of these devices.

[0071] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0072] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0073] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

Claims

1. A locking protection device, characterized in that, For use in duct connectors, the locking protection device includes a locking mechanism; The locking mechanism includes a locking ring and a slot, wherein the slot is circumferentially disposed on the inner wall of the locking ring; The locking ring has an initial position and a locked position that are retractable in the radial direction; In the initial position, the duct connector and the locking mechanism are in a clearance fit; in the locked position, the protrusion on the outer peripheral sidewall of the duct connector is engaged with the slot, and the duct connector and the locking mechanism are in an interference fit.

2. The locking protection device according to claim 1, characterized in that, The locking mechanism further includes a drive unit and a transmission unit, wherein the transmission unit connects the drive unit and the locking ring; The drive unit includes a push rod disposed on the radial surface of the locking ring. After a driving force is applied to the push rod, the transmission unit transmits the driving force to the locking ring to drive the locking ring to switch from the initial position to the locked position.

3. The locking protection device according to claim 2, characterized in that, The locking mechanism further includes a reset elastic element and a housing. The reset elastic element and the push rod are disposed on the same radial surface of the locking ring. The two ends of the reset elastic element are respectively connected to the housing and the locking ring. The drive unit is electrically driven. When the power on the drive unit is reduced or removed, the reset elastic element drives the locking ring to switch from the locked position to the initial position.

4. The locking protection device according to claim 1, characterized in that, In the variable cross-section structure of the slot, the effective width of the slot gradually decreases from the opening of the slot located on the inner wall of the locking ring to the bottom of the slot.

5. The locking protection device according to claim 1, characterized in that, The locking protection device includes a status detection component, which is disposed on the locking ring and is used to detect the connection status of the locking protection device to the duct connector; the connection status includes the duct connector being in an effective locking state, or the duct connector being in an unlocked or loosely connected state. The locking protection device includes a feedback module, which is connected to the status detection component and the monitoring terminal, and is used to feed back the connection status information to the monitoring terminal.

6. The locking protection device according to claim 5, characterized in that, The status detection component includes a pressure sensor, which is disposed on the inner wall of the locking ring at a position for contacting the outer peripheral side wall of the duct connector; and / or The state detection component includes a displacement sensor, which is disposed on the locking ring; and / or The status detection component includes a temperature sensor, which is disposed on the inner wall of the locking ring at a position for fitting against the outer peripheral side wall of the duct connector.

7. The locking protection device according to claim 5, characterized in that, The feedback module includes a signal processing unit and a wireless communication unit. The signal processing unit is connected to the state detection component and is used to collect signals from each sensor in the state detection component and output data. The wireless communication unit connects the signal processing unit and the monitoring terminal.

8. The locking protection device according to claim 1, characterized in that, The locking mechanism further includes a limiting component; the limiting component is disposed on the radial surface of the locking ring and is used to limit the range of movement of the locking ring.

9. The locking protection device according to claim 1, characterized in that, The locking protection device also includes a flange, which is disposed on the radial surface of the locking ring.

10. A locking protection method, characterized in that, The method, applied to the locking protection device as described in any one of claims 1-9, comprises: Collect the pressure value from the pressure sensor and the displacement value from the displacement sensor; When the pressure value of the pressure sensor is within a first preset range and the displacement of the displacement sensor is within a second preset range, it is determined that the duct connector is in an effective locking state. If the pressure value of the pressure sensor exceeds the first preset range, and / or the displacement of the displacement sensor exceeds the second preset range, the duct connector is determined to be in an unlocked or loosely connected state, and a prompt message is issued.

11. The method according to claim 10, characterized in that, The method further includes: When the control drive unit is powered on, the locking ring is in the locked position; When the power supply to the drive unit is removed or reduced, the locking ring is in its initial position under the action of the reset elastic element.

12. An electronic device, characterized in that, The electronic device includes a locking protection device as described in any one of claims 1-9, and a monitoring terminal.

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