Low-voltage switch band state locking device

Abstract

The utility model relates to the field of locking mechanisms, in particular to a state locking device for a low-voltage switch, which comprises a lock body assembly, a marker and a locking cover covering the switch, a passive magnetic induction component is arranged in the lock body assembly, two or more locking stations are arranged on the locking cover, and the marker is arranged on the locking cover. A magnetic element is arranged on the locking station; the locking cover is detachably connected with the lock body assembly through a locking station, and when the locking cover is connected with the lock body assembly, a magnetic element on the locking station and a passive magnetic induction element in the lock body assembly are mutually induced; according to the position of a locking station connected with the lock body assembly, after the marker acts through the gravity of the marker, warning marks are automatically switched in the locking cover.

Description

Technical Field

[0001] This utility model relates to the field of locking mechanisms, and more specifically, to a low-voltage switch with a status locking device. Background Technology

[0002] Currently, safety accidents are frequent in the power industry. This is mainly because power industry workers do not strictly follow the construction and maintenance guidelines. When safety accidents occur, they can cause electric shocks or even mass casualties, seriously threatening people's lives and property.

[0003] To address the aforementioned issues, some interlocking mechanisms designed to prevent accidental operation have emerged on the market. However, these mechanisms suffer from overly simplistic installation structures, and the warning signs do not automatically adjust their content based on the changing installation position of the interlocking cover. Instead, staff must manually change the signs on the tags after switching the interlocking mechanism. This approach presents two problems: first, the warning signs risk falling off; and second, it lacks intelligence, making it easy for staff to forget to adjust the warning signs after repositioning the interlocking cover.

[0004] Therefore, it is necessary to propose a low-voltage switchgear with a status interlocking device to solve the above problems. Utility Model Content

[0005] To overcome at least one of the defects (deficiencies) of the prior art, this utility model provides a low-voltage switch with a status interlocking device.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a low-voltage switch with a status interlocking device, including a lock body assembly, an indicator and an interlocking cover installed on the switch;

[0007] The lock body assembly is equipped with a passive magnetic induction component, and the locking cover is equipped with two or more locking positions, each of which is equipped with a magnetic element.

[0008] The locking cover is detachably connected to the lock body assembly via the locking station. When the locking cover is connected to the lock body assembly, the magnetic element on the locking station and the passive magnetic induction element in the lock body assembly mutually induct each other.

[0009] The indicator, based on its position at the locking station connected to the lock body assembly, automatically switches warning signs within the locking cover due to its own gravity. The locking cover, positioned over the switch, limits its movement, preventing unauthorized personnel from turning the switch without unlocking the locking cover, thus reducing accidental operation. Furthermore, the inclusion of passive magnetic induction components within the lock body assembly, along with two or more locking stations on the locking cover, each equipped with a magnetic element, allows users to determine the switch's current operating status based on the locking station's installation and provide feedback to the backend. The indicator on the locking cover automatically adjusts under its own gravity, displaying the warning sign for the current station status.

[0010] Furthermore, the locking positions are respectively set on both sides of the locking cover, and the locking cover can be closed on the switch in either the forward or reverse direction through the locking positions;

[0011] The locking cover is provided with a limiting rib to limit the operation of the switch;

[0012] The marker is slidably mounted on the locking cover by its own gravity, depending on the installation direction of the locking cover.

[0013] The locking cover is provided with a status display hole or display area for displaying the contents of the indicator. The limit ribs can limit the switch to prevent accidental operation. Since the locking positions are respectively set on both sides of the locking cover, the locking cover can cover the switch in the forward or reverse direction through the locking positions. Therefore, the indicator can adjust to the corresponding warning sign by its own gravity according to the locking position connected to the lock body assembly, and display it in the status display hole or display area on the locking cover.

[0014] Furthermore, the locking cover is provided with a communication port for the extension and limiting of the switch;

[0015] The locking cover is provided with a window or transparent area for observing the marker;

[0016] The indicator is oscillating within the locking cover according to the installation direction of the lock body assembly and the locking position, and is designed to swing under its own weight. Since the locking cover has a connection port for the extension and limit of the switch, when the locking cover is placed over the switch according to its position, the locking cover can limit the switch and prevent accidental operation. The indicator can swing under its own weight according to the locking position where the locking cover is connected to the lock body assembly, thereby displaying the corresponding warning sign in the window or transparent area of ​​the locking cover.

[0017] Furthermore, the locking cover is provided with a communication port for opening and closing the switch, and the marker includes an identification plate and a baffle with a notch or display area;

[0018] The sign is located in the middle of the locking cover, and the locking station is located on the outside of the sign.

[0019] The baffle rotates to the corresponding position on the signboard according to the installation direction of the lock body assembly and the locking position, thereby displaying the warning sign on the signboard in the notch or display area of ​​the baffle. Since the locking cover is provided with a connection port for the extension and limit of the switch, when the locking cover is covered according to the position of the switch, the locking cover can limit the switch and prevent accidental operation. Since the sign includes a signboard and a baffle with a notch or display area, and the baffle is lighter at the notch or display area, the baffle will rotate under its own weight when connected to the lock body assembly at different locking positions. At this time, the baffle with the notch or display area faces upward and displays the warning sign corresponding to the current switch.

[0020] Furthermore, the lock body assembly includes a lock body mounting base, a locking pin, an NFC antenna, and an MCU controller disposed within the lock body mounting base;

[0021] One end of the MCU controller is connected to a passive magnetic induction device, and the other end is connected to an NFC antenna;

[0022] The locking station is equipped with a locking hole;

[0023] When the lock body mounting base is connected to the locking station, the passive magnetic induction component in the lock body mounting base and the magnetic component in the locking station induce each other.

[0024] The locking pin is retractably mounted on the lock body mounting base. When the locking pin extends, it is inserted into the locking hole of the locking position. Since the passive magnetic induction components are respectively located at the upper and lower ends of the lock body mounting base and are all connected to the MCU controller, when the locking cover is installed with the lock body assembly through different locking positions, the magnetic elements on the locking cover can contact the passive magnetic induction components. The MCU controller can determine the current state of the switch based on the position of the passive magnetic induction components sensed by the magnetic elements on the locking cover, and provide status feedback through the NFC antenna. In this utility model, the MCU controller model is CH444G.

[0025] Furthermore, it also includes a converter, springs, and a lock cylinder with a keyhole;

[0026] The locking pin is provided with a slot, and the locking pin is set on the lock body mounting base by a spring;

[0027] The end of the conversion component is D-shaped, the head of the conversion component is connected to the lock cylinder, and the end of the conversion component is rotatably locked in the groove of the locking pin.

[0028] The lock cylinder is connected to the MCU controller. When authorized, a person can turn the lock cylinder by inserting a key into the keyhole. Since the conversion component is connected to the lock cylinder, it will also rotate along with the lock cylinder. Because the end of the conversion component is "D"-shaped, when the straight side of the "D" shape abuts against the edge of the locking pin's groove, the locking pin extends out of the lock body assembly under the action of the spring and inserts into the locking hole to lock the locking cover. When the conversion component rotates 90 degrees, the intersection of the straight side and the arc side of the "D"-shaped structure at the end of the conversion component abuts against the edge of the locking pin's groove, and the locking pin exits the locking hole, separating the lock body assembly from the locking cover. Since the lock cylinder is connected to the MCU controller, the MCU controller can also control the locking pin, thereby realizing remote control of the locking pin to unlock or lock.

[0029] Furthermore, the lock body mounting base is provided with a slide rail, and the locking cover is provided with a slide groove. The locking cover is fitted onto the slide rail of the lock body mounting base through the slide groove. By providing a slide groove on the locking cover and a slide rail on the lock body mounting base that matches the slide groove, the locking cover can be precisely positioned and installed with the lock body mounting base.

[0030] Furthermore, the passive magnetic induction device is a reed switch or a proximity switch, and the magnetic element is a magnet. When the passive magnetic induction device is a reed switch, when the magnetic element is close to the reed switch, the two reeds of the reed switch will be magnetized, thereby generating magnetic fields of different polarities. When the magnetic element is attached to the reed switch, the two reeds will attract each other, thus achieving conduction. When the magnetic element is separated from the reed switch, the two reeds gradually demagnetize and disconnect, thus achieving disconnection.

[0031] When the passive magnetic induction element is a proximity switch, if the magnetic element is attached to the proximity switch, the proximity switch can detect the proximity of the magnetic element and trigger the proximity switch to open. When the magnetic element is separated from the proximity switch, the proximity switch closes. In practical applications, the passive magnetic induction element and the magnetic element can also be replaced by other similar devices, all of which are within the protection scope of this utility model.

[0032] Furthermore, this also includes protective covers or support plates with mounting slots;

[0033] The locking cover is provided with a mounting slot. The protective cover or support plate is secured to the mounting slot of the locking cover by the mounting slot. The protective cover or support plate with the mounting slot can be better secured to the limiting slot of the locking cover, which facilitates installation and can also protect or support the installation of the marker.

[0034] Furthermore, the locking cover, the marker, and the lock body mounting base are all made of plastic material. The locking cover, the marker, and the lock body mounting base made of plastic material are simple and lightweight, reducing the production cost. Of course, in practical applications, the locking cover, the marker, and the lock body mounting base can also be made of other materials, which are all easily conceived by those skilled in the art.

[0035] Compared with the prior art, the beneficial effects of this utility model's technical solution are:

[0036] This utility model discloses a low-voltage switch with a status interlocking device. By enclosing the switch with an interlocking cover, the operation of the switch can be limited. Therefore, unauthorized personnel cannot rotate the switch without unlocking the interlocking cover, thereby reducing the occurrence of misoperation. Because a passive magnetic induction element is set in the lock body assembly, and two or more interlocking positions are set on the interlocking cover, with magnetic elements on the interlocking positions, people can know the current working status of the switch based on the installation of the interlocking positions on the interlocking cover and report the status to the background. The indicator on the interlocking cover is automatically adjusted by its own gravity, thereby displaying a warning sign of the current working status on the interlocking cover. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of the first low-voltage switch with a status interlocking device in this utility model when it is installed in the forward direction.

[0038] Figure 2 This is a schematic diagram of the structure of the first low-voltage switch with a status interlocking device in this utility model when installed in reverse.

[0039] Figure 3 This is a schematic diagram of the structure of the lock body assembly and locking cover of the first low-voltage switch with a status locking device in this utility model during installation.

[0040] Figure 4 This is an exploded view of the first low-voltage switch with a status interlocking device in this utility model.

[0041] Figure 5 This is a schematic diagram of the structure of the first low-voltage switch with status interlocking device in this utility model during closing and tripping.

[0042] Figure 6This is a schematic diagram of the structure of the first low-voltage switch with status interlocking device in this utility model when it is opened.

[0043] Figure 7 This is a schematic diagram of the internal structure of the first low-voltage switch with a status interlocking device in this utility model.

[0044] Figure 8 This is a schematic diagram of the structure of the second type of low-voltage switch with status interlocking device in this utility model when the switch is closed.

[0045] Figure 9 This is a schematic diagram of the structure of the second type of low-voltage switch with status interlocking device in this utility model when it trips.

[0046] Figure 10 This is a schematic diagram of the structure of the second type of low-voltage switch with status interlocking device in this utility model when it is opened.

[0047] Figure 11 This is a schematic diagram of the structure of the second type of low-voltage switch with status interlocking device in this utility model after the interlocking cover is removed.

[0048] Figure 12 This is a schematic diagram of the internal structure of the second type of low-voltage switch with a status interlocking device in this utility model.

[0049] Figure 13 This is a schematic diagram of the structure of the second type of low-voltage switch with status interlocking device in this utility model after the support plate is removed.

[0050] Figure 14 This is a cross-sectional view of the internal structure of the second type of low-voltage switch with a status interlocking device in this utility model.

[0051] Figure 15 This is a schematic diagram of the structure of the third type of low-voltage switch with status interlocking device in this utility model when it is connected to the lock body mounting base at the first interlocking position.

[0052] Figure 16 This is a schematic diagram of the structure of the third type of low-voltage switch with status interlocking device in this utility model when it is connected to the lock body mounting base at the second interlocking position.

[0053] Figure 17 This is a schematic diagram of the structure of the third type of low-voltage switch with status interlocking device in this utility model when it is connected to the lock body mounting base in the third interlocking position.

[0054] Figure 18 This is a schematic diagram of the structure of the third type of low-voltage switch with status interlocking device in this utility model when the interlocking cover and lock body assembly are installed.

[0055] Figure 19This is a schematic diagram of the back of the third type of low-voltage switch with status interlocking device in this utility model when the interlocking cover and lock body assembly are installed.

[0056] Figure 20 This is a schematic diagram of the structure of the locking cover of the third type of low-voltage switch with a status locking device in this utility model.

[0057] Figure 21 This is a cross-sectional view of the internal structure of the third type of low-voltage switch with a status interlocking device in this utility model.

[0058] Figure 22 This is a schematic diagram of the locking pin control structure in this utility model.

[0059] Figure 23 This is a schematic diagram of the lock body mounting base in this utility model.

[0060] Figure 24 This is a schematic diagram of the control principle between the passive magnetic induction component, the NFC antenna, and the MCU controller in this utility model.

[0061] In the diagram, 1 is the lock body assembly, 2 is the identifier, 3 is the switch, 4 is the locking cover, 5 is the passive magnetic induction component, 6 is the locking position, 7 is the magnetic element, 8 is the limit stop rib, 9 is the status display hole, 10 is the connection port, 11 is the window, 12 is the identification plate, 13 is the notch, 14 is the baffle, 15 is the lock body mounting base, 16 is the locking pin, 17 is the NFC antenna, 18 is the MCU controller, 19 is the locking hole, 20 is the conversion component, 21 is the spring, 22 is the keyhole, 23 is the lock cylinder, 24 is the slot, 25 is the slide rail, 26 is the slide groove, 27 is the mounting position, 28 is the protective cover, 29 is the support plate, and 30 is the mounting slot. Detailed Implementation

[0062] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0063] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 be described as the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0064] This utility model discloses a low-voltage switch with a status interlocking device, including a lock body assembly 1, an indicator 2, and an interlocking cover 4 covering the switch 3. The lock body assembly 1 contains a passive magnetic induction element 5, and the interlocking cover 4 has two or more interlocking positions 6, each with a magnetic element 7. The interlocking cover 4 is detachably connected to the lock body assembly 1 via the interlocking positions 6. When the interlocking cover 4 is connected to the lock body assembly 1, the magnetic element 7 on the interlocking position 6 senses the passive magnetic induction element 5 inside the lock body assembly 1. The indicator 2, based on its position at the interlocking position 6 connected to the lock body assembly 1, automatically switches a warning indicator within the interlocking cover 4 due to its own gravity. The locking cover 4 covers the switch 3, which can limit the movement of the switch 3. Therefore, unauthorized personnel cannot turn the switch 3 without unlocking the locking cover 4, thus reducing the occurrence of misoperation. Since a passive magnetic induction element 5 is set in the lock body assembly 1, and two or more locking positions 6 are set on the locking cover 4, and magnetic elements 7 are set on the locking positions 6, people can know the working status of the switch 3 based on the installation of the locking positions 6 on the locking cover 4 and report the status to the background. The indicator 2 on the locking cover 4 is automatically adjusted by its own gravity, thus displaying a warning sign of the current working status on the locking cover 4.

[0065] like Figure 1-7 As shown, locking positions 6 are respectively set on both sides of locking cover 4. Locking cover 4 can be closed onto switch 3 in either the forward or reverse direction through locking positions 6. Locking cover 4 is provided with limiting ribs 8 to limit the operation of switch 3. The indicator 2 is slidably set on locking cover 4 by its own weight according to the installation direction of locking cover 4. Locking cover 4 is provided with status display hole 9 or display area for displaying the content of indicator 2. By setting the limiting ribs 8, switch 3 can be limited to avoid accidental operation. Since locking positions 6 are respectively set on both sides of locking cover 4, locking cover 4 can be closed onto switch 3 in either the forward or reverse direction through locking positions 6. Therefore, indicator 2 can be adjusted to the corresponding warning sign by its own weight according to locking positions 6 connected to lock body assembly 1, and displayed in status display hole 9 or display area on locking cover 4.

[0066] like Figure 8-14As shown, the locking cover 4 has a connecting port 10 for the extension and limiting of the switch 3; the locking cover 4 has a window 11 or a transparent area for observing the indicator 2; the indicator 2 is swaying inside the locking cover 4 according to the installation direction of the lock body assembly 1 and the locking station 6 by its own gravity. Since the locking cover 4 has a connecting port 10 for the extension and limiting of the switch 3, when the locking cover 4 is covered according to the position of the switch 3, the locking cover 4 can limit the switch 3 to avoid misoperation. The indicator 2 can swing according to the locking station 6 connected to the lock body assembly 1 by its own gravity, so that the window 11 or transparent area on the locking cover 4 displays the corresponding warning sign.

[0067] like Figure 15-21 As shown, the locking cover 4 has a connecting port 10 for the extension and limiting of the switch 3. The indicator 2 includes an indicator plate 12 and a baffle 14 with a notch 13 or a display area. The indicator plate 12 is located in the middle of the locking cover 4, and the locking position 6 is located on the outside of the indicator plate 12. According to the installation direction of the lock body assembly 1 and the locking position 6, the baffle 14 rotates on the indicator plate 12 to the corresponding position by its own gravity, so that the warning indicator on the indicator plate 12 is displayed in the notch 13 or display area of ​​the baffle 14. Because the locking cover 4 has a connecting port 10 for the extension and limiting of the switch 3, the indicator 10 is used to prevent the switch 3 from extending and being limited. The communication port 10 of the position is such that when the locking cover 4 is covered by the lock cover 4 according to the position of the switch 3, the locking cover 4 can limit the switch 3 to avoid misoperation. Since the indicator 2 includes the indicator plate 12 and the baffle 14 with notch 13 or display area, the baffle 14 is lighter at the notch 13 or display area. Therefore, when the lock body assembly 1 is connected to the lock body assembly 6 at different locking positions, the baffle 14 will rotate by its own weight. At this time, the baffle 14 with notch 13 or display area faces upward and displays the warning sign corresponding to the current switch.

[0068] In this invention, the lock body assembly 1 includes a lock body mounting base 15, a locking pin 16, an NFC antenna 17, and an MCU controller 18 disposed within the lock body mounting base 15. One end of the MCU controller 18 is connected to a passive magnetic induction element 5, and the other end is connected to the NFC antenna 17. A locking hole 19 is provided on the locking station 6. When the lock body mounting base and the locking station 6 are connected, the passive magnetic induction element 5 within the lock body mounting base 15 and the magnetic element 7 within the locking station 6 mutually induct each other. The locking pin 16 is retractably disposed on the lock body mounting base 15. When the locking pin 16 extends, it inserts into the locking hole 19 of the locking station 6, thereby... Passive magnetic induction components 5 are respectively disposed at the upper and lower ends of the lock body mounting base 15, and each passive magnetic induction component 5 is connected to the MCU controller 18. Therefore, when the locking cover 4 is installed with the lock body assembly 1 through different locking positions 6, the magnetic element 7 on the locking cover 4 can contact the passive magnetic induction components 5. The MCU controller 18 can determine the current state of the switch 3 based on the position of the passive magnetic induction components 5 sensed by the magnetic element 7 on the locking cover 4, and provide status feedback through the NFC antenna 17. In this utility model, the MCU controller 18 is model CH444G. In addition, it also includes a converter 20 and a spring. The lock cylinder 23 has a keyhole 22 and a locking pin 16 with a slot 24. The locking pin 16 is mounted on the lock body mounting base 15 via a spring 21. The end of the adapter 20 is D-shaped, and the head of the adapter 20 is connected to the lock cylinder 23. The end of the adapter 20 is rotatably engaged in the slot 24 of the locking pin 16. The lock cylinder 23 is connected to the MCU controller 18. When authorized, the lock cylinder 23 can be rotated by inserting a key into the keyhole 22. Since the adapter 20 is connected to the lock cylinder 23, it will also rotate along with the lock cylinder 23. Because the end of the adapter 20 is D-shaped... When the straight edge of the "D" shape abuts against the edge of the slot 24 of the locking pin 16, the locking pin 16 extends out of the lock body assembly 1 under the action of the spring and inserts into the locking hole 19 to lock the locking cover 4. When the converter 20 rotates 90 degrees, the intersection of the straight edge and the arc edge of the "D" shape at the end of the converter 20 abuts against the edge of the slot 24 of the locking pin 16, and the locking pin 16 exits the locking hole 19 to separate the lock body assembly 1 from the locking cover 4. Since the lock cylinder 23 is connected to the MCU controller 18, the MCU controller 18 can also control the locking pin 16, thereby realizing remote control of the locking pin 16 to unlock or lock.

[0069] like Figure 22-24As shown, in this utility model, a slide rail 25 is provided on the lock body mounting base 15, and a slide groove 26 is provided on the locking cover 4. The locking cover 4 is fitted onto the slide rail 25 of the lock body mounting base 15 through the slide groove 26. By providing the slide groove 26 on the locking cover 4 and providing a slide rail 25 on the lock body mounting base 15 that matches the slide groove 26, the locking cover 4 can be precisely positioned and installed with the lock body mounting base 15. The passive magnetic induction element 5 is a reed switch or a proximity switch, and the magnetic element 7 is a magnet. When the passive magnetic induction element 5 is a reed switch, when the magnetic element 7 approaches the reed switch, the two reeds of the reed switch are magnetized, thereby generating... When magnetic element 7 is attached to a reed switch, the two reeds attract each other, thus achieving conductivity. When magnetic element 7 is separated from the reed switch, the two reeds gradually demagnetize and disconnect, thus achieving disconnection. When the passive magnetic induction element 5 is used as a proximity switch, if magnetic element 7 is attached to the proximity switch, the proximity switch can detect the approach of magnetic element 7 and trigger the proximity switch to open. When magnetic element 7 is separated from the proximity switch, the proximity switch closes. In practical applications, passive magnetic induction element 5 and magnetic element 7 can be replaced by other similar devices, all of which are within the protection scope of this utility model.

[0070] In addition, it also includes a protective cover 28 or a support plate 29 with a mounting slot 27; the locking cover 4 is provided with a mounting slot 30, and the protective cover 28 or the support plate 29 is locked onto the mounting slot 30 of the locking cover 4 through the mounting slot 27. The setting of the protective cover 28 or the support plate 29 with the mounting slot 27 allows the protective cover 28 or the support plate 29 to be better locked onto the limiting slot 30 of the locking cover 4, which facilitates installation and also protects or supports the installation of the marker 2. In this utility model, the locking cover 4, the marker 2 and the lock body mounting base 15 are all made of plastic material. The locking cover 4, the marker 2 and the lock body mounting base 15 made of plastic material are simple and lightweight, reducing the production cost. Of course, in practical applications, the locking cover 4, the marker 2 and the lock body mounting base 15 can also be made of other materials, which are all easily conceived by those skilled in the art.

[0071] Example 1

[0072] In this embodiment, two locking positions are respectively located on both sides of the locking cover. The locking cover can be positioned to cover the switch in either the forward or reverse direction via the two locking positions. Because the locking cover has limiting ribs to restrict the switch's movement, and the indicator is slidably mounted on the locking cover by its own weight according to the installation direction of the locking cover, and the locking cover has a status display hole or display area for displaying the indicator's information, the limiting ribs can limit the switch's movement, preventing accidental operation. Since the locking positions are respectively located on both sides of the locking cover, the locking cover... The locking position can be positioned to cover the switch in either the forward or reverse direction. Therefore, the indicator can adjust to the corresponding warning sign based on its own weight according to the locking position connected to the lock body assembly, and display it in the status display hole or display area on the locking cover. This can prevent unauthorized personnel from accidentally closing or opening the switch, and can also automatically adjust to the corresponding warning sign according to the locking position installed with the lock body assembly, avoiding situations where the indicator falls or is forgotten to be switched. In this embodiment, the two locking positions are arranged opposite each other.

[0073] In this embodiment, there are two passive magnetic induction components, which are respectively set at the upper and lower ends of the lock body assembly. The magnetic elements on the locking position are symmetrically set above or below the two sides of the locking cover. Therefore, when the locking position is installed in the forward and reverse directions, the lock body assembly is sensed by different passive magnetic induction components and the magnetic elements on the locking position. Thus, people can know the current switch status remotely based on the signal transmitted by the passive magnetic induction components.

[0074] Example 2

[0075] In this embodiment, the locking cover has a communication port for the extension and limiting of the switch, and a window or transparent area for observing the indicator. The indicator is swaying within the locking cover by its own gravity according to the installation direction of the lock body assembly and the locking position. Because the locking cover has a communication port for the extension and limiting of the switch, when the locking cover is placed over the switch according to its position, the communication port of the locking cover can limit the switch and prevent accidental operation. The indicator can sway by its own gravity according to the locking position where the locking cover is connected to the lock body assembly, thereby displaying the corresponding warning indicator in the window or transparent area on the locking cover. This also allows for the display of the indicator based on the installation direction of the lock body assembly and the indicator. The locking position automatically adjusts to the corresponding warning sign to prevent the sign from falling or being forgotten to switch signs. In this embodiment, the installation angle between the two locking positions is 90 degrees. There are two passive magnetic induction components, which are respectively set at the upper and lower ends of the lock body mounting base. The magnetic element on the first locking position is set on the left side of the locking position, and the magnetic element on the second locking position is set on the right side of the locking position. Therefore, when the locking position is rotated 90 degrees, the magnetic element on the locking position will come into contact with different passive magnetic induction components. People can then remotely know the current switch status based on the signals transmitted by the passive magnetic induction components.

[0076] Example 3

[0077] In this embodiment, the locking cover has a communication port for switch extension and limiting. The indicator includes an indicator plate and a baffle with a notch or display area. The indicator plate is located in the middle of the locking cover, and the locking position is located outside the indicator plate. The baffle rotates to the corresponding position on the indicator plate according to the installation direction of the lock body assembly and the locking position, thereby displaying the warning indicator on the indicator plate in the notch or display area of ​​the baffle. Because the locking cover has a communication port for switch extension and limiting, when the locking cover is placed over the switch according to its position, the locking cover can limit the switch and prevent accidental operation. Since the indicator includes an indicator plate and a baffle with a notch or display area, and the baffle is relatively light at the notch or display area, the baffle will rotate under its own weight when connected to the lock body assembly at different locking positions to maintain stability. The notch or display area of ​​the baffle always faces upwards, thus displaying a warning label corresponding to the current switch in the notch and display area of ​​the baffle. This setting can prevent the label from falling or being forgotten to switch the label. In this embodiment, there are three locking positions, and the installation angle between the three locking positions is 90 degrees. There are two passive magnetic induction components, which are respectively set at the upper and lower ends of the lock body assembly. At this time, it is only necessary to set a magnetic element on the left side of the first locking position, a magnetic element on the right side of the second locking position, and magnetic elements on both the left and right sides of the third locking position. Since different locking positions will contact different passive magnetic induction components when connected to the lock body assembly, people can know the current switch status remotely based on the signal transmitted by the passive magnetic induction components.

[0078] The positional relationships described in the figures are for illustrative purposes only and should not be construed as limiting this patent. Clearly, the above embodiments of this utility model are merely examples to clearly illustrate the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A low-voltage switch with a status interlocking device, comprising a lock body assembly, an indicator, and an interlocking cover disposed on the switch, characterized in that: The lock body assembly is equipped with a passive magnetic induction component, and the locking cover is equipped with two or more locking positions, each of which is equipped with a magnetic element. The locking cover is detachably connected to the lock body assembly via the locking station. When the locking cover is connected to the lock body assembly, the magnetic element on the locking station and the passive magnetic induction element in the lock body assembly mutually induct each other. The indicator automatically switches the warning indicator in the locking cover based on the position of the locking station connected to the lock body assembly and the movement of the indicator itself due to gravity.

2. The low-voltage switch with status interlocking device according to claim 1, characterized in that: The locking positions are respectively set on both sides of the locking cover, and the locking cover can be closed on the switch in either the forward or reverse direction through the locking positions; The locking cover is provided with a limiting rib to limit the operation of the switch; The marker is slidably mounted on the locking cover by its own gravity, depending on the installation direction of the locking cover. The locking cover is provided with a status display hole or display area for displaying the contents of the identifier.

3. The low-voltage switch with status interlocking device according to claim 1, characterized in that: The locking cover is provided with a communication port for the extension and limiting of the switch; The locking cover is provided with a window or transparent area for observing the marker; The marker is positioned inside the locking cover and can swing due to its own gravity, depending on the installation direction of the lock body assembly and the locking position.

4. The low-voltage switch with status interlocking device according to claim 1, characterized in that: The locking cover is provided with a communication port for opening and closing, and the marker includes a sign and a baffle with a notch or display area; The sign is located in the middle of the locking cover, and the locking station is located on the outside of the sign. The baffle rotates to the corresponding position on the signboard by its own gravity according to the installation direction of the lock body assembly and the locking position, so that the warning sign on the signboard is displayed in the notch or display area of ​​the baffle.

5. The low-voltage switch with status interlocking device according to claim 1, characterized in that: The lock body assembly includes a lock body mounting base, a locking pin, an NFC antenna, and an MCU controller disposed within the lock body mounting base; One end of the MCU controller is connected to a passive magnetic induction device, and the other end is connected to an NFC antenna; The locking station is equipped with a locking hole; When the lock body mounting base is connected to the locking station, the passive magnetic induction component in the lock body mounting base and the magnetic component in the locking station induce each other. The locking pin is retractably mounted on the lock body mounting base. When the locking pin is extended, it is inserted into the locking hole of the locking position.

6. The low-voltage switch with status interlocking device according to claim 5, characterized in that: It also includes a converter, springs, and a lock cylinder with a keyhole; The locking pin is provided with a slot, and the locking pin is set on the lock body mounting base by a spring; The end of the conversion component is D-shaped, the head of the conversion component is connected to the lock cylinder, and the end of the conversion component is rotatably locked in the slot of the locking pin. The lock cylinder is connected to the MCU controller.

7. The low-voltage switch with status interlocking device according to claim 5, characterized in that: The lock body mounting base is provided with a slide rail, and the locking cover is provided with a slide groove. The locking cover is fitted onto the slide rail of the lock body mounting base through the slide groove.

8. The low-voltage switch with status interlocking device according to claim 1, characterized in that: The passive magnetic induction device is a reed switch or a proximity switch, and the magnetic element is a magnet.

9. The low-voltage switch with status interlocking device according to claim 1, characterized in that: It also includes a protective cover or support plate with mounting slots; The locking cover is provided with a mounting slot, and the protective cover or support plate is secured to the mounting slot of the locking cover by a mounting bracket.

10. The low-voltage switch with status interlocking device according to claim 5, characterized in that: The locking cover, indicator, and lock body mounting base are all made of plastic.

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