Automatic gravity tile turning mechanism of double-station locking device
By designing a gravity-driven automatic sign-flipping mechanism with a dual-position interlocking device, the status of electrical switches is displayed using the gravity swing of the sign and magnetic induction components. This solves the problems of construction indicator signs being prone to falling and unable to switch automatically, and achieves safe use of electrical switches and protection against misoperation.
Patent Information
- Application Number
- CN202520239383.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-02-14
AI Technical Summary
Existing construction indicator signs in the power industry are prone to falling and causing misoperation, and cannot automatically switch according to the status of electrical switches, resulting in frequent safety accidents.
Design a gravity-driven automatic flip-plate mechanism for a dual-position locking device, including a lock body assembly, an identification plate, and a locking cover. By setting a first locking position and a second locking position, the electrical switch status is displayed by the gravity swing of the identification plate, and the switch status is determined by a passive magnetic induction component and an MCU controller to achieve remote control.
It effectively avoids misoperation, ensures the normal use of electrical switches, automatically displays the switch status, improves safety, and prevents safety accidents caused by misoperation.
Smart Images
Figure CN223624848U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of locking mechanisms, and more specifically, to a gravity-driven automatic card-flipping mechanism for a dual-position locking device. Background Technology
[0002] Currently, safety accidents occur frequently in the power industry. Most of these accidents are caused by human factors. When a safety accident occurs, it can result in electric shock or even mass casualties, seriously threatening people's lives and property.
[0003] Research has found that most safety accidents in the power industry are caused by construction workers failing to follow construction specifications during construction and maintenance, resulting in electrical switches being closed due to misoperation, thus energizing the line. In addition, current construction signs are generally placed near electrical cabinets or switches by handwriting or printing warning signs, or sometimes by attaching magnets to the signs to attach them to the electrical cabinets or switches.
[0004] After in-depth application, it was found that if the warning signs set up in the above two ways fall, it may lead to other people accidentally closing the circuit breaker. In addition, such warning signs cannot automatically switch states according to the status of electrical switches to warn construction workers of the current status of electrical switches, thus leading to safety accidents.
[0005] Therefore, it is necessary to propose a gravity-driven automatic card-flipping mechanism for a dual-station locking device to solve the above problems. Utility Model Content
[0006] To overcome at least one of the defects (deficiencies) of the prior art described above, this utility model provides a gravity-driven automatic card-flipping mechanism for a dual-station locking device.
[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a gravity automatic flipping mechanism for a dual-position locking device, including a lock body assembly, an identification plate, and a locking cover that is fitted onto an electrical switch;
[0008] The locking cover is provided with a first locking position, a second locking position, and a notch for the electrical switch to extend;
[0009] The locking cover is connected to the lock body assembly via a first locking station or a second locking station;
[0010] The sign is mounted inside the locking cover and can swing under its own weight according to the installation direction of the locking cover. The locking cover has a window or transparent area for observing the markings on the sign. By providing a notch on the locking cover for the electrical switch to extend, the normal use of the electrical switch can be ensured while limiting its rotation to prevent misoperation. Since the locking cover has a first locking position and a second locking position, in practical applications, operators can select the first or second locking position to connect to the lock body assembly according to the closing, tripping, or opening of the electrical switch. At this time, the sign can swing to the corresponding angle according to the installation direction of the locking cover, so that the window or transparent area on the locking cover displays the current working status of the electrical switch and serves as a warning to other personnel.
[0011] Furthermore, the width of the notch is greater than the maximum width required for the electrical switch to switch between closing and tripping actions. Since the width of the notch is greater than the maximum width required for the electrical switch to switch between closing and tripping actions, the electrical switch can still switch between normal closing and tripping after extending out of the notch, without affecting the use of the electrical switch.
[0012] Furthermore, the lock body assembly includes a lock body mounting base, a locking pin, an NFC antenna, passive magnetic induction components, and an MCU controller disposed within the lock body mounting base;
[0013] One end of the MCU controller is connected to a passive magnetic induction device, and the other end is connected to an NFC antenna;
[0014] Both the first and second locking stations are equipped with magnetic elements and locking holes;
[0015] When the lock body mounting base is engaged with the first locking position or the second locking position, the passive magnetic induction element in the lock body mounting base and the magnetic element in the first locking position or the second locking position will mutually induct.
[0016] 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 first locking position or the second locking position. Since a passive magnetic induction element is provided on the lock body mounting base, and there are magnetic elements at the first and second locking positions, after the locking cover is installed, the magnetic elements at the first or second locking positions will sense each other with the passive magnetic induction element in the lock body mounting base. The MCU controller in the lock body mounting base will transmit the current status of the electrical switch and the locking cover to the outside via the NFC antenna according to the specific locking position sensed by the passive magnetic induction element. In this utility model, the model of the MCU controller is CH444G.
[0017] Furthermore, it also includes a converter, springs, and a lock cylinder with a keyhole;
[0018] The locking pin is provided with a slot, and the locking pin is set on the lock body mounting base by a spring;
[0019] The adapter has a "D"-shaped end, and its head is connected to the lock cylinder. The adapter's end is rotatably engaged in the locking pin's slot. The lock cylinder is connected to an MCU controller. When authorized, a person can insert a key into the keyhole to turn the lock cylinder. Since the adapter is connected to the lock cylinder, it will also rotate with the lock cylinder. Because the adapter's end is "D"-shaped, when the straight side of the "D" shape abuts against the edge of the locking pin's slot, the locking pin extends out of the lock body assembly under the action of a spring and inserts into the locking hole to lock the locking cover. When the adapter rotates 90 degrees, the intersection of the straight and curved sides of the "D"-shaped structure at the adapter's end abuts against the edge of the locking pin's slot, 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 achieving remote control of the locking pin's unlocking or locking.
[0020] Furthermore, the passive magnetic induction components are respectively disposed at the top and bottom of the lock body mounting base. The passive magnetic induction components are reed switches or proximity switches, and the magnetic elements are magnets. In practical applications, the magnets can be respectively disposed on the right side of the first locking position and the left side of the second locking position, or on the left side of the first locking position and the right side of the second locking position, with a 90-degree interval between the first and second locking positions. When the first locking position is connected to the lock body assembly, if the magnet is disposed on the right side of the first locking position, the passive magnetic induction component at the top of the lock body assembly will induct with the magnet at the first locking position. When the second locking position is connected to the lock body assembly, the magnet at the second locking position will induct with the passive magnetic induction component at the bottom of the lock body assembly. Therefore, the MCU controller can quickly determine the position and state of the locking cover electrical switch. When the passive magnetic induction element is a reed switch, when the magnetic element approaches 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 together, thus achieving conduction. When the magnetic element is separated from the reed switch, the two reeds gradually demagnetize and disconnect, thus achieving disconnection. 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.
[0021] Furthermore, the lock body mounting base is provided with a slide rail, and the first locking position and the second locking position are provided with a slide groove. The first locking position or the second locking position is sleeved on the slide rail of the lock body mounting base through the slide groove. By providing slide grooves on the first locking position and the second locking position, and providing a slide rail on the lock body mounting base that matches the slide groove, the first locking position and the second locking position can be precisely positioned and installed with the lock body mounting base.
[0022] Furthermore, the sign is fan-shaped, and the locking cover is provided with a limiting edge for limiting the swing of the sign. By providing a limiting edge on the locking cover for limiting the rotation of the sign, the swing of the sign can be limited.
[0023] Furthermore, it also includes a support plate with mounting slots. The locking cover is provided with a limiting block. The support plate is locked onto the limiting block of the locking cover through the mounting slots. The support plate with mounting slots allows the support plate to be better locked onto the limiting block of the locking cover, which facilitates installation and also supports the signboard to prevent it from swinging.
[0024] Furthermore, it also includes a rotating shaft disposed between the locking cover and the support plate. The sign is provided with a connecting hole, and the sign is sleeved on the rotating shaft of the locking cover through the connecting hole. With the setting of the rotating shaft, the sign can swing between the locking cover and the support plate according to the installation direction of the locking cover.
[0025] Furthermore, the locking cover, the sign, and the lock body mounting base are all made of plastic material. In practical applications, the locking cover, the sign, and the lock body mounting base can also be made of other materials as needed, which are ideas that those skilled in the art would consider.
[0026] Compared with the prior art, the beneficial effects of this utility model's technical solution are:
[0027] The gravity-driven automatic flip-tag mechanism of the dual-position interlocking device disclosed in this utility model, by setting a notch on the interlocking cover for the extension of the electrical switch, can limit the rotation of the electrical switch without affecting its normal use, thus preventing misoperation. Since the interlocking cover is provided with a first interlocking position and a second interlocking position, in practical applications, the operator can select the first or second interlocking position to connect to the lock body assembly according to the closing, tripping, or opening of the electrical switch. At this time, the sign can swing to the corresponding angle according to the installation direction of the interlocking cover, so that the window or transparent area on the interlocking cover displays the current working status of the electrical switch and serves as a warning to other personnel. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the gravity automatic card flipping mechanism of the dual-position interlocking device in this utility model when the switch is closed.
[0029] Figure 2 This is a schematic diagram of the gravity automatic card flipping mechanism of the dual-position locking device in this utility model from another angle when the switch is closed.
[0030] Figure 3 This is a schematic diagram of the gravity automatic card flipping mechanism of the dual-position locking device in this utility model when the circuit breaker trips.
[0031] Figure 4 This is a schematic diagram of the gravity automatic card flipping mechanism of the dual-position locking device in this utility model from another angle when the circuit breaker trips.
[0032] Figure 5 This is a schematic diagram of the gravity automatic card flipping mechanism of the dual-position interlocking device in this utility model during the opening of the gate.
[0033] Figure 6This is a schematic diagram of the gravity automatic card flipping mechanism of the dual-position locking device in this utility model from another angle when the switch is opened.
[0034] Figure 7 This is a schematic diagram of the back of the gravity automatic flipping mechanism of the dual-position interlocking device in this utility model when the switch is opened.
[0035] Figure 8 This is a schematic diagram of the structure of the gravity automatic flipping mechanism of the dual-position locking device in this utility model after the locking cover is disassembled when the switch is closed.
[0036] Figure 9 This is a schematic diagram of the structure of the gravity automatic flipping mechanism of the dual-position locking device in this utility model after the locking cover is disassembled when the circuit breaker trips.
[0037] Figure 10 This is a schematic diagram of the structure of the gravity automatic flipping mechanism of the dual-position locking device in this utility model after the locking cover is disassembled when the switch is opened.
[0038] Figure 11 This is a schematic diagram of the structure of the locking cover in this utility model when it is connected to the lock body assembly through the first locking station.
[0039] Figure 12 This is a schematic diagram of the structure of the locking cover in this utility model when it is connected to the lock body assembly through the second locking station.
[0040] Figure 13 This is a schematic diagram of the locking cover in this utility model.
[0041] Figure 14 This is a schematic diagram of the internal structure of the locking cover in this utility model.
[0042] Figure 15 This is a schematic diagram of the lock body mounting base in this utility model.
[0043] Figure 16 This is a schematic diagram of the internal structure of the lock body assembly in this utility model.
[0044] Figure 17 This is a structural schematic diagram of the conversion component, lock cylinder, and locking pin in this utility model.
[0045] Figure 18 This is a schematic diagram showing the connection between the passive magnetic induction component, the MCU controller, and the NFC antenna in this utility model.
[0046] In the diagram, 1 is the lock body assembly, 2 is the identification plate, 3 is the electrical switch, 4 is the locking cover, 5 is the first locking position, 6 is the second locking position, 7 is the notch, 8 is the transparent area, 9 is the lock body mounting base, 10 is the locking pin, 11 is the NFC antenna, 12 is the passive magnetic induction component, 13 is the MCU controller, 14 is the magnetic element, 15 is the locking hole, 16 is the conversion component, 17 is the spring, 18 is the keyhole, 19 is the lock cylinder, 20 is the slot, 21 is the slide rail, 22 is the slide groove, 23 is the limiting edge, 24 is the mounting slot, 25 is the support plate, 26 is the limiting block, 27 is the rotating shaft, and 28 is the connecting hole. Detailed Implementation
[0047] 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.
[0048] 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.
[0049] like Figure 1-7As shown, a dual-position locking device with a gravity-driven automatic flip-tag mechanism includes a lock body assembly 1, an identification plate 2, and a locking cover 4 that covers an electrical switch 3. The locking cover 4 has a first locking position 5, a second locking position 6, and a notch 7 for the electrical switch 3 to extend. The locking cover 4 is connected to the lock body assembly 1 via the first locking position 5 or the second locking position 6. The identification plate 2 is sway-mounted inside the locking cover 4 by its own weight, depending on the installation direction of the locking cover 4. The locking cover 4 has a window or transparent area 8 for observing the markings on the identification plate 2. By providing the notch 7 for the electrical switch 3 to extend on the locking cover 4, the normal operation of the electrical switch 3 can be maintained while limiting its rotation to prevent misoperation. Furthermore, the first locking position 5 is provided on the locking cover 4. The first interlocking position 5 and the second interlocking position 6 are used for the electrical switch 3. Therefore, in practical applications, the operator can select the first interlocking position 5 or the second interlocking position 6 to connect with the lock body assembly 1 according to the closing, tripping and opening of the electrical switch 3. At this time, the sign 2 can swing to the corresponding angle according to the installation direction of the interlocking cover 4 by its own weight, so that the window or transparent area 8 on the interlocking cover 4 can display the working status of the electrical switch 3 at this time, and play a warning role to other personnel. The width of the notch 7 is greater than the maximum width required by the electrical switch 3 between closing and tripping actions. Since the width of the notch 7 is greater than the maximum width required by the electrical switch 3 between closing and tripping actions, the electrical switch 3 can still switch between normal closing and tripping after extending out of the notch 7, without affecting the use of the electrical switch 3.
[0050] like Figure 8-12As shown, the lock body assembly 1 includes a lock body mounting base 9, a locking pin 10, an NFC antenna 11, a passive magnetic induction element 12, and an MCU controller 13 disposed within the lock body mounting base 9. One end of the MCU controller 13 is connected to the passive magnetic induction element 12, and the other end is connected to the NFC antenna 11. Magnetic elements 14 and locking holes 15 are provided on both the first locking station 5 and the second locking station 6. When the lock body mounting base 9 is engaged with either the first locking station 5 or the second locking station 6, the passive magnetic induction element 12 within the lock body mounting base 9 senses the magnetic element 14 within either the first locking station 5 or the second locking station 6. The locking pin 10 is retractably disposed on the lock body mounting base 9. When the pin 10 extends, the locking pin 10 is inserted into the locking hole 15 of the first locking position 5 or the second locking position 6. Since a passive magnetic induction element 12 is provided on the lock body mounting base 9, and magnetic elements 14 are present on the first locking position 5 and the second locking position 6, after the locking cover 4 is installed, the magnetic elements 14 on the first locking position 5 or the second locking position 6 will interact with the passive magnetic induction element 12 inside the lock body mounting base 9. The MCU controller 13 inside the lock body mounting base 9 will transmit the current status of the electrical switch 3 and the locking cover 4 to the outside via the NFC antenna 11 according to the specific locking position interacting with the passive magnetic induction element 12. In this utility model, the MCU controller... Model 13 is CH444G. It also includes a converter 16, a spring 17, and a lock cylinder 19 with a keyhole 18. The locking pin 10 has a slot 20 and is mounted on the lock body mounting base 9 via the spring 17. The converter 16 has a "D"-shaped end, with its head connected to the lock cylinder 19. The end of the converter 16 is rotatably engaged in the slot 20 of the locking pin 10. The lock cylinder 19 is connected to the MCU controller 13. When authorized, a person can rotate the lock cylinder 19 by inserting a key into the keyhole 18. Since the converter 16 is connected to the lock cylinder 19, it will also rotate along with the lock cylinder 19. The end of the lock is in the shape of a "D". When the straight side of the "D" shape abuts against the edge of the groove 20 of the locking pin 10, the locking pin 10 extends out of the lock body assembly 1 under the action of the spring 17 and inserts into the locking hole 15 to lock the locking cover 4. When the conversion component 16 rotates 90 degrees, the intersection of the straight side and the arc side of the "D" shape at the end of the conversion component 16 abuts against the edge of the groove 20 of the locking pin 10. The locking pin 10 exits the locking hole 15 to separate the lock body assembly 1 from the locking cover 4. Since the lock cylinder 19 is connected to the MCU controller 13, the MCU controller 13 can also control the locking pin 10, thereby realizing remote control of the locking pin 10 to unlock or lock.
[0051] like Figure 13-18As shown, passive magnetic induction components 12 are respectively disposed on the top and bottom of the lock body mounting base 9. The passive magnetic induction components 12 are reed switches or proximity switches, and the magnetic element 14 is a magnet. In practical applications, the magnets can be respectively disposed on the right side of the first locking position 5 and the left side of the second locking position 6, or respectively disposed on the left side of the first locking position 5 and the right side of the second locking position 6. The first locking position 5 and the second locking position 6 are spaced 90 degrees apart. When the first locking position 5 is connected to the lock body assembly 1, if the magnet is disposed on the right side of the first locking position 5, then the first... When the locking station 5 is connected to the lock body assembly 1, the passive magnetic induction element 12 on the top of the lock body assembly 1 will interact with the magnet on the first locking station 5. When the second locking station 6 is connected to the lock body assembly 1, the magnet on the second locking station 6 will interact with the passive magnetic induction element 12 at the bottom of the lock body assembly 1. Therefore, the MCU controller 13 can quickly determine the position and state of the locking cover 4 and the electrical switch 3. When the passive magnetic induction element 12 is a reed switch, when the magnetic element 14 approaches the reed switch, the two reeds of the reed switch will be magnetized. Generating magnetic fields of different polarities, when the magnetic element 14 is attached to the reed switch, the two reeds attract each other, thus achieving conductivity. When the magnetic element 14 is separated from the reed switch, the two reeds gradually demagnetize and disconnect, thus achieving discontinuity. When the passive magnetic induction element 12 is used as a proximity switch, if the magnetic element 14 is attached to the proximity switch, the proximity switch can detect the approach of the magnetic element 14 and trigger the proximity switch to open. When the magnetic element 14 is separated from the proximity switch, the proximity switch closes. In practical applications, the passive magnetic induction element 12 and the magnetic element 14 can also be connected by... Other similar devices can be used as substitutes, all of which are within the protection scope of this utility model. In this invention, a slide rail 21 is provided on the lock body mounting base 9, and a slide groove 22 is provided on the first locking position 5 and the second locking position 6. The first locking position 5 or the second locking position 6 is fitted onto the slide rail 21 of the lock body mounting base 9 through the slide groove 22. By providing the slide groove 22 on the first locking position 5 and the second locking position 6, and providing the slide rail 21 on the lock body mounting base 9 that matches the slide groove 22, the first locking position 5 and the second locking position 6 can be precisely positioned and installed with the lock body mounting base 9.
[0052] In this invention, the sign 2 is fan-shaped, and the locking cover 4 is provided with a limiting edge 23 for limiting the swing of the sign 2. By providing a limiting edge 23 on the locking cover 4 for limiting the rotation of the sign 2, the swing of the sign 2 can be limited. In addition, it includes a support plate 25 with a mounting slot 24. The locking cover 4 is provided with a limiting block 26. The support plate 25 is locked onto the limiting block 26 of the locking cover 4 through the mounting slot 24. The support plate 25 with the mounting slot 24 allows the support plate 25 to be better locked onto the limiting block 26 of the locking cover 4, which facilitates installation and also allows for better control of the sign. The support and swing of the 2 provide a supporting function. In addition, it also includes a rotating shaft 27 set between the locking cover 4 and the support plate 25. The sign 2 is provided with a connecting hole 28. The sign 2 is sleeved on the rotating shaft 27 of the locking cover 4 through the connecting hole 28. With the setting of the rotating shaft 27, the sign 2 can swing between the locking cover 4 and the support plate 25 according to the installation direction of the locking cover 4. In this utility model, the locking cover 4, the sign 2 and the lock body mounting base 9 are all made of plastic material. In practical applications, the locking cover 4, the sign 2 and the lock body mounting base 9 can also be made of other materials as needed. These are all ideas that those skilled in the art would have thought of.
[0053] Example
[0054] In this embodiment, a first locking position and a second locking position are respectively provided on the locking cover. Therefore, in practical applications, the operator can select the first locking position or the second locking position to connect to the lock body assembly according to the closing, tripping and opening of the electrical switch.
[0055] When the electrical switch is in the closed or tripped state, the locking cover can be connected to the lock body assembly through the first locking position. Since there is a notch on the locking cover for the electrical switch to extend, and the width of the notch is greater than the maximum width required for the electrical switch to extend between closing and tripping actions, the electrical switch can still switch between normal closing and tripping after extending out of the notch without affecting the use of the electrical switch.
[0056] When the locking cover is placed over the electrical switch, the passive magnetic induction element on the top of the lock body assembly will interact with the magnet at the first locking position. Therefore, the MCU controller can quickly determine the position and status of the locking cover and the electrical switch. At this time, the locking pin extends out of the lock body assembly and inserts into the locking hole of the first locking position. The sign on the locking cover will swing to the corresponding angle according to the installation direction of the locking cover, so that the window or transparent area on the locking cover displays the working status of the electrical switch and serves as a warning to other personnel.
[0057] When the electrical switch is in the open position, maintenance personnel can rotate the interlocking cover 90 degrees. At this time, the interlocking cover is connected to the lock body assembly through the second interlocking position. Due to the design of the interlocking cover, when the interlocking cover and the lock body assembly are not separated, the interlocking cover will prevent the electrical switch from being switched on, thus preventing accidental closing. After the interlocking cover is rotated, the sign will swing to the corresponding angle again due to its own gravity, so that the window or transparent area on the interlocking cover will show the current working status of the electrical switch and serve as a warning to other personnel.
[0058] 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 gravity-driven automatic flip-plate mechanism for a dual-position locking device, comprising a lock body assembly, an identification plate, and a locking cover fitted onto an electrical switch, characterized in that: The locking cover is provided with a first locking position, a second locking position, and a notch for the electrical switch to extend; The locking cover is connected to the lock body assembly via a first locking station or a second locking station; The sign is mounted inside the locking cover and can swing due to its own weight, depending on the installation direction of the locking cover. The locking cover is provided with a window or transparent area for observing the markings on the sign.
2. The gravity-driven automatic card-flipping mechanism of the dual-station locking device according to claim 1, characterized in that: The width of the notch is greater than the maximum width required for the electrical switch to perform closing and tripping actions.
3. The gravity-driven automatic card-flipping mechanism of the dual-station locking device according to claim 1, characterized in that: The lock body assembly includes a lock body mounting base, a locking pin, an NFC antenna, passive magnetic induction components, and an MCU controller disposed within the lock body mounting base; One end of the MCU controller is connected to the passive magnetic induction device, and the other end is connected to the NFC antenna; Both the first and second locking stations are equipped with magnetic elements and locking holes; When the lock body mounting base is engaged with the first locking position or the second locking position, the passive magnetic induction element in the lock body mounting base and the magnetic element in the first locking position or the second locking position will mutually induct. 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 first locking position or the second locking position.
4. The gravity-driven automatic card-flipping mechanism of the dual-station locking device according to claim 3, 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.
5. The gravity-driven automatic card-flipping mechanism of the dual-station locking device according to claim 3, characterized in that: The passive magnetic induction components are respectively disposed at the top and bottom of the lock body mounting base. The passive magnetic induction components are reed switches or proximity switches, and the magnetic elements are magnets.
6. The gravity-driven automatic card-flipping mechanism of the dual-station locking device according to claim 3, characterized in that: The lock body mounting base is provided with a slide rail, and the first locking position and the second locking position are provided with a slide groove. The first locking position or the second locking position is sleeved on the slide rail of the lock body mounting base through the slide groove.
7. The gravity-driven automatic card-flipping mechanism of the dual-station locking device according to claim 1, characterized in that: The sign is fan-shaped, and the locking cover is provided with a limiting edge for limiting the swing of the sign.
8. The gravity-driven automatic card-flipping mechanism of the dual-station locking device according to claim 1, characterized in that: It also includes a support plate with a mounting slot, and the locking cover is provided with a limiting block. The support plate is locked onto the limiting block of the locking cover through the mounting slot.
9. The gravity-driven automatic card-flipping mechanism of the dual-station locking device according to claim 8, characterized in that: It also includes a rotating shaft disposed between the locking cover and the support plate, and the sign is provided with a connecting hole, through which the sign is sleeved on the rotating shaft of the locking cover.
10. The gravity-driven automatic card-flipping mechanism of the dual-station locking device according to claim 3, characterized in that: The locking cover, sign, and lock body mounting base are all made of plastic.