A locking device for a battery charging cabinet

Abstract

The utility model relates to charging cabinet technical field, the utility model discloses a locking device for battery charging cabinet, including bearing unit, including cabinet body, pull unit, pull unit includes the drawer and the symmetrical setting drawer both sides and with the slide rail subassembly of cabinet body sliding cooperation in the accommodation space of cabinet body, interlocking unit, interlocking unit is arranged in the cabinet body along the vertical direction, the interlocking unit includes slide bar, spring and movable block of sliding setting in slide bar and along the longitudinal arrangement of a plurality of lock catch subassembly of slide bar, the utility model has the beneficial effect that: through the setting of interlocking unit, when one drawer is taken out, can lock the remaining drawer, prevent the staff from taking out multiple drawers simultaneously or in turn after causing the center of gravity of device to deviate leads to the situation that device tilts, is favorable to the protection of device and personnel, and through the cooperation of elastic pressure buckle and card block, it is convenient to take out the drawer and replace.

Description

Technical Field

[0001] This utility model relates to the field of charging cabinet technology, and in particular to a locking device for a battery charging cabinet. Background Technology

[0002] With the widespread application of drone technology in fields such as commercial logistics, agricultural plant protection, and environmental monitoring that require high-frequency and large-scale drone operations, efficient and safe charging solutions have become particularly important, and the market demand for locking devices for drone battery charging cabinets continues to grow.

[0003] Currently, the market offers DJI battery charging management products and other similar charging cabinets, primarily used for charging and storing drone batteries. However, DJI batteries differ in size and shape from those of other drones, making existing charging cabinets incompatible with various battery types. DJI battery charging products, due to their undisclosed battery protocols, can only determine full charge status via charging current. Other products often suffer from large size, limited rechargeable battery types, reliance on counterweights for handling center of gravity shifts, limited safety warning mechanisms, and a lack of charging interfaces for non-drone devices and cascading networking capabilities.

[0004] In existing technology, when an operator pulls out a drawer, multiple drawers may be pulled out simultaneously. This operation can easily cause the center of gravity to shift, leading to the device tipping over and potentially damaging it. Furthermore, it makes it inconvenient to replace the drawers. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is that the existing products on the market solve the problem of center of gravity shift when multiple drawers are pulled out by adding counterweights. The counterweight modules occupy the volume of the cabinet and are relatively bulky, which is not conducive to the optimization of the device's volume and is also inconvenient for replacing drawers.

[0006] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes a locking device for a battery charging cabinet, which includes a supporting unit, including a cabinet body; a pull-out unit, which is slidably installed in the accommodating space of the cabinet body, the pull-out unit including a drawer and slide rail assemblies symmetrically arranged on both sides of the drawer and slidingly cooperating with the cabinet body; and an interlocking unit, which is arranged vertically in the cabinet body, the interlocking unit including a slide rod, a spring and a movable block slidably arranged in the slide rod, and a plurality of locking assemblies arranged longitudinally along the slide rod, wherein the plurality of locking assemblies, the locking assemblies and the movable block, and the locking assemblies and the ends of the slide rod are all provided with slide bars.

[0007] In a preferred embodiment of the locking device for the battery charging cabinet of this utility model: the slide rail assembly includes a first slide rail that is bolted to the side wall of the drawer, a third slide rail that is detachably mounted to the side wall of the cabinet, and a second slide rail for slidingly connecting the first slide rail and the third slide rail.

[0008] In a preferred embodiment of the locking device for the battery charging cabinet described in this utility model: the second slide rail is detachably and slidably installed on the side of the third slide rail away from the inner wall of the cabinet, and the second slide rail is slidably engaged with the first slide rail.

[0009] In a preferred embodiment of the locking device for the battery charging cabinet of this utility model: the first slide rail limits the movement of the second slide rail by an elastic buckle, and the elastic buckle is rotatably disposed on the outside of the first slide rail by a first rotating shaft.

[0010] In a preferred embodiment of the locking device for the battery charging cabinet of this utility model: the elastic buckle is divided into a first part, a second part and a third part, and a locking block that can engage with the third part is fixedly connected to the top of the second slide rail near the first slide rail.

[0011] In a preferred embodiment of the locking device for the battery charging cabinet of this utility model: the slide rod is installed inside the cabinet, the two ends of the spring are respectively fixed to one end of the slide rod and one side of the movable block, the movable block slides inside the slide rod, and the other side of the movable block is fixedly connected to the slide bar.

[0012] In a preferred embodiment of the locking device for the battery charging cabinet of this utility model: the locking assembly includes an upper locking plate, a lower locking plate, and a rotating clip rotatably disposed on one side of the upper locking plate via a second rotating shaft, wherein both the upper locking plate and the lower locking plate slide within a sliding rod.

[0013] In a preferred embodiment of the locking device for the battery charging cabinet of this utility model: the top of the upper plate and the bottom of the lower plate are both connected to the slide bar, so that the multiple locking components are staggered with the slide bar.

[0014] In a preferred embodiment of the locking device for the battery charging cabinet of this utility model: the card is divided into a first area and a second area, the second area is slidably engaged with the side of the lower card plate near the upper card plate, and the baffle on one side of the upper card plate is used to block the first area.

[0015] In a preferred embodiment of the locking device for the battery charging cabinet of this utility model, a connecting plate is further included. The connecting plate is fixed to one side of the drawer, and a locking rod is fixedly connected to the side of the connecting plate facing the slide rod. The locking rod is in sliding cooperation with the rotating locking mechanism.

[0016] The beneficial effects of this utility model are as follows: by setting up an interlocking unit, when one drawer is taken out, the remaining drawers can be locked, preventing the device from tipping over due to the center of gravity shifting after multiple drawers are pulled out simultaneously or in sequence by the staff. This is beneficial to the protection of the device and personnel. In addition, the cooperation between the elastic buckle and the locking block makes it easy to take out the drawers for replacement. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model and are not intended to limit the scope of this utility model. Wherein: Figure 1 A schematic diagram of the locking device for a battery charging cabinet is shown. Figure 2 A schematic diagram of the drawer being pulled out in the locking device of the battery charging cabinet is shown; Figure 3 A partial structural diagram of the internal frame of the locking device for the battery charging cabinet is shown. Figure 4 A schematic diagram of the pull-out unit is shown; Figure 5 A schematic diagram of the slide rail assembly in the stretched state of the pull-out unit is shown; Figure 6 A schematic diagram of the separate structure of the drawer and slide rail assembly in the pull-out unit is shown; Figure 7 A partially enlarged view of the slide rail assembly is shown; Figure 8 A partially enlarged view of the first slide rail is shown; Figure 9 A schematic diagram of the interlocking unit is shown; Figure 10 A schematic diagram of the structure of the interlock unit in the withdrawn state of the connecting plate is shown; Figure 11 A schematic diagram of the interlock unit in the inserted state of the connecting plate is shown.

[0018] Reference numerals: 1. Supporting unit; 11. Cabinet; 12. Placement platform; 13. Display screen; 14. Charging interface; 15. Cabinet door; 16. Casters; 2. Pull-out unit; 21. Drawer; 211. Charging module; 212. Charging slot; 213. Power supply interface; 214. Communication interface; 215. Fan; 216. Handle; 217. Air inlet; 22. Slide rail assembly; 221. First slide rail; 221a. Elastic buckle; A. First part; B. First... Part Two; C, Part Three; 221, First Rotating Shaft; 222, Second Slide Rail; 222a, Locking Block; 3, Interlocking Unit; 31, Slide Rod; 32, Slide Bar; 33, Spring; 34, Movable Block; 35, Locking Assembly; 351, Upper Locking Plate; 351a, Baffle; 352, Lower Locking Plate; 353, Rotating Lock; 353a, First Area; 353b, Second Area; 353c, Second Rotating Shaft; 354, Connecting Plate; 354a, Locking Rod; N1, Accommodation Space. Detailed Implementation

[0019] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0021] Example 1 Reference Figures 1-11 This is the first embodiment of the present invention. This embodiment provides a locking device for a battery charging cabinet, which includes a support unit 1, including a cabinet body 11; a pull-out unit 2, which is slidably installed in the accommodating space N1 of the cabinet body 11, the pull-out unit 2 including a drawer 21 and slide rail assemblies 22 symmetrically arranged on both sides of the drawer 21 and slidably cooperating with the cabinet body 11; and an interlocking unit 3, which is arranged vertically in the cabinet body 11, the interlocking unit 3 including a slide rod 31, a spring 33 and a movable block 34 slidably arranged in the slide rod 31, and a plurality of locking assemblies 35 arranged longitudinally along the slide rod 31. Slide strips 32 are provided between the plurality of locking assemblies 35, between the locking assemblies 35 and the movable block 34, and between the locking assemblies 35 and the end of the slide rod 31.

[0022] Specifically, the top of the cabinet 11 is equipped with a placement platform 12, a display screen 13 and a charging port 14, the side of the cabinet 11 is equipped with a cabinet door 15, and the bottom of the cabinet 11 is equipped with casters 16.

[0023] Cabinet 11 provides an installation environment, facilitating the installation of pull-out unit 2 and interlocking unit 3. The placement platform 12 is a large flat surface, allowing for the placement of mobile devices such as drone remote controllers, power banks, and mobile phones. This facilitates placement of the devices when charging via charging interface 14 or charging module 211. Charging of these devices is achieved through the PD fast charging type-C port of charging interface 14. The number and type of charging interfaces 14 can be adjusted according to actual needs; no specific limitations are made here. The opening and closing of cabinet door 15 ensures the safety of pull-out unit 2. Cabinet door 15 has a transparent glass area for easy observation of drawer 21. The universal wheels 16 facilitate moving the device to a suitable position and have a self-locking function for easy fixation. The display screen 13 displays battery charging information and provides customers with multiple intelligent charging options, including power balancing mode and partial fast charging mode. This is existing technology and will not be described in detail here.

[0024] The number of drawers 21 in cabinet 11 can be set according to the actual situation and the specific internal space. There is no specific limit here. When the staff needs to replace the drawers 21, the drawers 21 can be quickly taken out of cabinet 11 and replaced through the slide rail assembly 22, which is convenient for the staff to operate. Similarly, ventilation openings are opened on the side wall of cabinet 11 for internal ventilation, and filters can be installed at the ventilation openings to prevent a lot of dust or debris from entering the interior of cabinet 11.

[0025] The sliding rod 31 provides installation conditions for related components, and the locking assembly 35 limits the drawer 21. Together with the sliding bar 32, spring 33, and movable block 34, the locking assembly 35 deforms when one of the drawers 21 is removed. During the deformation process, the sliding bar 32 presses the movable block 34 against the end of the sliding rod 31 and compresses the spring 33. The deformed locking assembly 35 can drive the sliding bar 32 and the locking assembly 35 between it and the movable block 34 to move synchronously. During the movement, because the movement distance is short, the movement of the locking assembly 35 will not affect the limiting of the drawer 21. Only the drawer 21 at the deformed locking assembly 35 can be removed.

[0026] The display screen 13 is connected to the control system inside the device. The display screen 13 is used to receive and display battery data and control commands, while the charging interface 14 is connected to the internal power management module of the device to ensure that mobile devices such as drone remote controllers and mobile phones can be charged through the charging interface 14.

[0027] Furthermore, the device may also be equipped with safety components, including smoke detectors, temperature and humidity sensors, small fire extinguishing bombs, and overcurrent protection devices. The sensors communicate with the control system, and the fire extinguishing bombs and overcurrent protection devices are linked with the power system to monitor the safety status in real time and trigger alarms or fire extinguishing and power-off protection in case of abnormalities.

[0028] Furthermore, the control system hardware uses an MCU as its core, including interfaces such as UART / I2C / GPIO. It connects to drawer 21 through communication interface 214 and to sensors and alarm devices through 485 communication. The hardware modules provide a carrier for software operation, and each interface connects to the corresponding functional module, enabling hardware support for functions such as battery monitoring, charging control, and safety monitoring.

[0029] Furthermore, the control system software is based on the FreeRTOS real-time operating system. Through multitasking and MCU interrupts, it enables information exchange and charging control among various modules. The firmware is stored in the MCU's internal FLASH memory, including a bootloader (for SN writing and firmware upgrades) and an application (for charging control and task scheduling). It handles tasks such as charging slot detection, chip select switching, and charging cabinet control. The software drives each functional module through hardware interfaces, and tasks interact through message queues, enabling information exchange and charging control among the modules.

[0030] Software workflow: After the system is powered on, the bootloader completes initialization and jumps to the application; the application initializes peripherals and interrupts, performs tasks such as charging slot detection (highest priority, detecting the presence of the battery and identifying the model), chip select switching (polling battery information), battery serial port reception, host computer serial port communication, and charging cabinet control; tasks interact with each other through message queues to achieve closed-loop control of battery status monitoring, charging strategy execution, and exception handling.

[0031] In use, the stand 12 can hold mobile devices such as drone remote controllers, power banks, and mobile phones, and the charging interface 14 can charge these devices. The charging module 211 stored in the drawer 21 can charge various types of batteries. When the charging module 211 needs to be replaced, the corresponding drawer 21 needs to be pulled out. First, open the cabinet door 15, then find the charging module 211 that needs to be replaced, and pull out the corresponding drawer 21. This will cause the locking component 35 at the corresponding position to deform, which can limit the other drawers 21. After pulling out, the drawer 21 can be taken out by operating the slide rail component 22. Then, the replaced drawer 21 is slid back into the cabinet 11 through the slide rail component 22. After sliding in, the replaced drawer 21 will cause the locking component 35 to return to its original position. At this point, the replacement of the drawer 21 is complete.

[0032] During the charging process, the control system detects the battery's presence status through sensors, initiates communication to identify the battery model, and controls the charging IC to supply power according to the selected charging mode. Fan 215 starts synchronously, and heat dissipation is achieved through negative pressure airflow. Safety components monitor the safety status in real time.

[0033] Example 2 Reference Figures 4-8 This is the second embodiment of the present invention, which differs from the first embodiment in that it further includes a charging module 211 installed in the drawer 21, a plurality of charging slots 212 disposed on the charging module 211, a power supply interface 213 and a communication interface 214 disposed on the inner side of the charging module 211, a handle 216 on the outer side of the charging module 211, an air inlet 217 opened on the outer side of the charging module 211, a fan 215 installed on the rear side of the charging module 211, and the charging slots 212 being electrically connected to the power supply interface 213 and the communication interface 214.

[0034] The charging module 211 is provided with various types of charging slots 212 to facilitate charging of various types of batteries. The charging slots 212 are designed in a multi-size integrated form, that is, two or three types of batteries can be charged through one charging slot 212. Each charging slot 212 can also be set with different shapes. The specific shape and number of charging slots 212 can be set according to the specific situation and the shape of the battery, and are not specifically limited here. In addition, the charging slots 212 are provided with a battery clamping structure. This clamping structure is a common existing structure, and will not be described in detail here.

[0035] Specifically, charging slot 212 is available in multiple sizes, such as... Figure 5As shown, the charging slot 212 is convex in shape. This shape can accommodate two batteries of different widths. The front end of the protruding part of the charging slot 212 can hold a rectangular battery of one size, the rear end can hold a rectangular battery of one size, the middle part of the front and rear ends can hold a rectangular battery of one size, the two sides of the front and rear ends can hold an L-shaped battery, and the front and rear ends together can hold a T-shaped battery, etc. The charging slot 212 can be set according to the actual situation, and several types can be selected. The charging slots 212 on multiple drawers 2 can be different, and each layer can be set with different charging slots 212, which can further increase the adaptability of the device.

[0036] The power supply interface 213 allows the charging module 211 to be connected to a power source for power supply. The communication interface 214 allows connection to a control system for control of the charging module 211. This control system is existing technology and will not be described in detail here. The fan 215 provides cooling for the charging module 211 while it is charging the battery, ensuring safety during the charging process. The air inlet 217 allows air to enter the fan 215 during operation. The handle 216 allows the operator to pull out the drawer 21. The fan 215 can be controlled by the control system to turn on for cooling during operation, which is existing technology and will not be described in detail here.

[0037] Specifically, the slide rail assembly 22 includes a first slide rail 221 bolted to the side wall of the drawer 21, a third slide rail 223 detachably mounted to the side wall of the cabinet 11, and a second slide rail 222 for slidingly connecting the first slide rail 221 and the third slide rail 223.

[0038] Furthermore, the second slide rail 222 is detachably and slidably installed on the side of the third slide rail 223 away from the inner wall of the cabinet 11, and the second slide rail 222 slides in cooperation with the first slide rail 221.

[0039] Furthermore, the first slide rail 221 limits the movement of the second slide rail 222 by means of an elastic buckle 221a, and the elastic buckle 221a is rotatably disposed on the outside of the first slide rail 221 via the first rotating shaft 221b. Furthermore, the elastic buckle 221a is divided into a first part A, a second part B and a third part C, and the top of the second slide rail 222 near the first slide rail 221 is fixedly connected with a locking block 222a that can engage with the third part C.

[0040] The first slide rail 221 is connected to the charging module 211. The second slide rail 222 slides in cooperation with the third slide rail 223 fixed inside the cabinet 11. The first slide rail 221 and the second slide rail 222 are connected by the elastic buckle 221a and the locking block 222a to limit the movement of the first slide rail 221.

[0041] The elastic snap fastener 221a is rotatably connected to the outside of the first slide rail 221 via the first rotating shaft 221b. The elastic snap fastener 221a is divided into a first part A, a second part B, and a third part C. The second part B is made of elastic material, or the connection between the second part B and the first part A is made of elastic material, ensuring that the elastic snap fastener 221a can rotate when the first part A is pressed downwards. The first part A and the third part C are made of rigid material. When the second part B is in its normal state, such as... Figure 7 As shown, at this time, the lowest point of the second part B is in contact with the lower side wall of the first slide rail 221, the highest point of the third part C is in contact with the upper side wall of the first slide rail 221, and the third part C is engaged with the locking block 222a inside the second slide rail 222, which can realize the limiting of the charging module 211.

[0042] The position of the elastic snap 221a can limit the pull-out length of the drawer 21, and its position can be determined according to the actual situation.

[0043] When the charging module 211 needs to be replaced or repaired, the charging module 211 needs to be removed, the drawer 21 containing the charging module 211 needs to be located, and the drawer 21 needs to be pulled out until the third part C contacts the locking block 222a. At this time, the first part A is exposed and in a position that the operator can operate. Then, by manually pressing the first part A, the second part B will be deformed and bent under the action of human force. When the second part B is bent to a certain extent, the third part C separates from the locking block 222a. At this time, the limiting state of the drawer 21 is released, and the drawer 21 can be pulled out by continuing to pull it. When replacing the module, the drawer 21 with the new charging module 211 needs to be placed into the accommodating space N1. Simply slide the first slide rail 221 installed on the drawer 21 into the original second slide rail 222 in the cabinet 11 and push it into the cabinet 11. Under the action of manual pushing, the locking block 222a slides along the upper edge of the first part A to the third part C. Then, a greater pushing force is applied. Under the action of the pushing force, the second part B bends, and the charging module 211 slides smoothly into the cabinet 11. After sliding in, since the second part B is supported by elastic material, the elastic buckle 221a returns to its original state and then limits the drawer 21.

[0044] Example 3 Reference Figures 9-11 This is the third embodiment of the present invention. This embodiment is based on the first two embodiments. This embodiment also includes a slide rod 31 installed inside the cabinet 11, with the two ends of the spring 33 respectively fixed to one end of the slide rod 31 and one side of the movable block 34. The movable block 34 slides inside the slide rod 31, and the other side of the movable block 34 is fixedly connected to the slide bar 32.

[0045] The slide bar 31 is U-shaped, allowing other components to be installed inside its open side. The slide bar 31 provides a basis for the installation of the slide bar 32, spring 33, movable block 34, and locking assembly 35. The movable block 34 slides in the slide bar 31 and is elastically connected to the top of the slide bar 31 by the spring 33, so that the movable block 34 can not only move but also return to its original position after the force is released during movement. After the state of one of the locking assemblies 35 changes, the movable block 34 moves and fits against the end of the slide bar 31. The slide bar 32 can effectively link the various parts together, so that when the state of one locking assembly 35 changes, it can drive the movable block 34 to move and fit against the end of the slide bar 31. When the state of the bottom locking assembly 35 changes, it can drive the upper locking assembly 35 and the movable block 34 to move simultaneously. However, the movement of the locking assembly 35 will not affect the limiting effect on the charging module 211.

[0046] Specifically, the locking assembly 35 includes an upper locking plate 351, a lower locking plate 352, and a rotating clip 353 rotatably mounted on one side of the upper locking plate 351 via a second rotating shaft 353c. Both the upper locking plate 351 and the lower locking plate 352 slide within the slide rod 31.

[0047] Furthermore, the top of the upper plate 351 and the bottom of the lower plate 352 are both connected to the slide bar 32, so that the multiple locking assemblies 35 and the slide bar 32 are arranged in an alternating manner.

[0048] Furthermore, the card 353 is divided into a first region 353a and a second region 353b. The second region 353b slides with the side of the lower card plate 352 near the upper card plate 351. The baffle 351a on one side of the upper card plate 351 is used to block the first region 353a.

[0049] Furthermore, it also includes a connecting plate 354, which is fixed to one side of the drawer 21, and a locking rod 354a is fixedly connected to the side of the connecting plate 354 facing the slide bar 31, and the locking rod 354a slides in cooperation with the rotating clip 353.

[0050] Both the upper locking plate 351 and the lower locking plate 352 slide within the slide rod 31. The top of the upper locking plate 351 and the bottom of the lower locking plate 352 are connected to the slide bar 32, creating a linkage between the multiple locking components 35. This connection can be a fixed connection, a plug-in connection, or a detachable connection, and is not specifically limited here. The upper end of the slide bar 32 connected to the uppermost locking component 35 on the slide rod 31 is connected to the movable block 34, creating a linkage between the multiple locking components 35 and the movable block 34. When one of the locking components 35 deforms, the component above it can be pushed upward synchronously by the slide bar 32, causing the movable block 34 to abut against the top of the slide rod 31.

[0051] The connecting plate 354 is fixed to the corresponding position on the side of the drawer 21 by bolts, so that it can be adapted to the upper plate 351, the lower plate 352 and the rotating plate 353.

[0052] The rotating card 353 is rotatably mounted on one side of the upper card plate 351, wherein the second region 353b can slide and engage with the top of the lower card plate 352, and the outer side of the first region 353a contacts the baffle 351a after the rotating card 353 rotates, thereby limiting the rotation of the rotating card 353.

[0053] When using, such as Figure 11 The image shows the initial state of the charging module 211 when it is not pulled. At this time, the spring 33 applies a pushing force to the movable block 34, and there is a certain amount of movement space between the movable block 34 and the top of the slide bar 31. At this time, the second area 353b of the rotating card 353 does not form a support relationship with the lower card plate 352, and any drawer 21 can be pulled out. When any drawer 21 is pulled, the connecting plate 354 mounted on it will move, and the lever 354a will also move. After the lever 354a moves, it will contact the first area 353a of the rotating plate 353. When pulled again, the lever 354a will apply a rotational force to the first area 353a, causing the rotating plate 353 to rotate around the second pivot 353c. When the first area 353a rotates to contact the baffle 351a, the lever 354a will disengage from the rotating plate 353 and can be pulled out smoothly. During the process of pulling out drawer 21, when the rotating card 353 rotates, since the length of the second region 353b is longer than the length of the first region 353a, it can drive the upper card plate 351 to move during rotation, thereby driving the components above it to move upward synchronously through the slide bar 32. After rotation, the end of the second region 353b is in contact with the top of the lower card plate 352. When the movable block 34 moves, since the movable block 34 is in contact with the end of the slide bar 31, the other rotating cards 353 cannot rotate. Therefore, only one charging module 211 can be pulled out, which can effectively stabilize the center of gravity of the device and prevent the center of gravity from shifting. After the charging module 211 is pulled out, the state of the locking assembly 35 changes as follows. Figure 10 As shown, even after the latch assembly 35 moves upward as a whole, the drawer 21 can still be restricted due to the limited movement distance; When the drawer 21 is pulled out and inserted, the drawer 21 drives the latch 354a installed on it into the range of the rotating card 353. When the latch 354a is in contact with the second area 353b, continuing to push the charging module 211 can give the second area 353b a push force, thereby causing the rotating card 353 to rotate around the second rotating shaft 353c. After the upper card plate 351 loses the support of the second area 353b, under the action of the spring 33, it drives the movable block 34 and the upper card plate 351 to return to the initial state, so that the other charging modules 211 can be pulled out.

[0054] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways, as long as they do not depart from the scope of this utility model.

Claims

1. A locking device for a battery charging cabinet, characterized in that: include, The supporting unit (1) includes a cabinet (11); The pull-out unit (2) is slidably installed in the accommodating space (N1) of the cabinet (11). The pull-out unit (2) includes a drawer (21) and a slide rail assembly (22) symmetrically arranged on both sides of the drawer (21) and slidably cooperating with the cabinet (11). Interlocking unit (3) is arranged vertically inside cabinet (11). The interlocking unit (3) includes a slide rod (31), a spring (33) and a movable block (34) slidably disposed in the slide rod (31), and multiple locking assemblies (35) arranged longitudinally along the slide rod (31). Multiple locking assemblies (35), the locking assembly (35) and the movable block (34), and the locking assembly (35) and the end of the slide rod (31) are all provided with slide bars (32).

2. The locking device for a battery charging cabinet according to claim 1, characterized in that: The slide rail assembly (22) includes a first slide rail (221) bolted to the side wall of the drawer (21), a third slide rail (223) detachably mounted to the side wall of the cabinet (11), and a second slide rail (222) for slidingly connecting the first slide rail (221) and the third slide rail (223).

3. The locking device for a battery charging cabinet according to claim 2, characterized in that: The second slide rail (222) is detachably slidably installed on the side of the third slide rail (223) away from the inner wall of the cabinet (11), and the second slide rail (222) slides in cooperation with the first slide rail (221).

4. The locking device for a battery charging cabinet according to claim 3, characterized in that: The first slide rail (221) limits the movement of the second slide rail (222) by means of an elastic buckle (221a), which is rotatably disposed on the outside of the first slide rail (221) via a first rotating shaft (221b).

5. The locking device for a battery charging cabinet according to claim 4, characterized in that: The elastic buckle (221a) is divided into a first part (A), a second part (B) and a third part (C). The top of the second slide rail (222) near the first slide rail (221) is fixedly connected to a locking block (222a) that can engage with the third part (C).

6. The locking device for a battery charging cabinet according to any one of claims 1 to 5, characterized in that: The slide bar (31) is installed inside the cabinet (11). The two ends of the spring (33) are respectively fixed to one end of the slide bar (31) and one side of the movable block (34). The movable block (34) slides inside the slide bar (31). The other side of the movable block (34) is fixedly connected to the slide bar (32).

7. The locking device for a battery charging cabinet according to claim 6, characterized in that: The locking assembly (35) includes an upper locking plate (351), a lower locking plate (352), and a rotating clip (353) rotatably mounted on one side of the upper locking plate (351) via a second rotating shaft (353c). Both the upper locking plate (351) and the lower locking plate (352) slide within the slide rod (31).

8. The locking device for a battery charging cabinet according to claim 7, characterized in that: The top of the upper plate (351) and the bottom of the lower plate (352) are both connected to the slide bar (32), so that the multiple locking components (35) and the slide bar (32) are arranged in an alternating manner.

9. The locking device for a battery charging cabinet according to claim 8, characterized in that: The card (353) is divided into a first region (353a) and a second region (353b). The second region (353b) is slidably engaged with the lower card plate (352) on the side near the upper card plate (351). The baffle (351a) on one side of the upper card plate (351) is used to block the first region (353a).

10. The locking device for a battery charging cabinet according to claim 9, characterized in that: It also includes a connecting plate (354), which is fixed to one side of the drawer (21), and a locking rod (354a) is fixedly connected to the side of the connecting plate (354) facing the slide rod (31), and the locking rod (354a) is slidably engaged with the rotating clip (353).

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