WO2022193083A1

WO2022193083A1 - Assembly box, led display screen and led display device

Info

Publication number: WO2022193083A1
Application number: PCT/CN2021/080839
Authority: WO
Inventors: 周洪贵
Original assignee: 深圳市艾比森光电股份有限公司
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2022-09-22

Abstract

Disclosed in the present application is an assembly box, comprising a box body, a first screw hole (111), a first detection device (230), a first screw rod (131), a switching power supply device (240), a first driving device (220), and a first power-off device (210). When two assembly boxes of the present application are fixedly mounted, it is only necessary to place this assembly box in close proximity to another assembly box, and the first detection device (230) is turned on, such that the first driving device (220) drives the first screw rod (131) of this assembly box to be locked with the first screw hole (111) of the other assembly box. When it is necessary to detach, it is only necessary to manually reset the first power-off device (210) and input an operation instruction to the switching power supply device (240), such that the first screw (131) of this assembly box is unlocked with the first screw hole (111) of the other assembly box. The number of parts required to be manually engaged in the assembly and disassembly process of the present application is small, the working strength of an operator is reduced, and the efficiency of assembling and disassembling the plurality of assembly boxes is improved.

Description

Packing case, LED display screen and LED display device

technical field

The present application relates to the technical field of display screen assembly, and in particular to a combined case, an LED display screen and an LED display device.

Background technique

The statements herein merely provide background information related to the present application and do not necessarily constitute prior art.

In the application field of LED display screen, it is often necessary to disassemble and assemble the display screen frequently, especially in the rental scenario, the disassembly and assembly of the display screen is more frequent. The speed of disassembly and assembly of the display screen directly affects the user experience, and the traditional display screen needs to be disassembled and assembled manually, resulting in low disassembly and assembly efficiency.

technical problem

One of the purposes of the embodiments of the present application is to provide a combined case, an LED display screen and an LED display device, which aims to solve the problem of low disassembly and assembly efficiency of the traditional assembled display screen.

technical solutions

In order to solve the above-mentioned technical problems, the technical solutions adopted in the embodiments of the present application are:

In a first aspect, a combined box is provided, comprising a box body, the box body includes a first side, a second side, a third side and a fourth side, the first side and the third side are opposite to each other, The second side and the fourth side are opposite to each other, and also include:

a first screw hole provided on the first side surface;

A first detection device and a rotatable first screw are provided on the third side surface, the first screw rod is adapted to the first screw hole, and the first detection device is configured to detect the third side surface when the first detection device is detected. Conduction when the distance from the first side of the other consolidated container is less than the first preset value;

The switching power supply device is electrically connected to the first detection device, and is configured to output the power supply voltage in the first direction when the first detection device is turned on, and output the power supply voltage in the second direction when the operation command is input. said power supply voltage;

A first driving device, connected to the first screw drive, and electrically connected to the first detection device and the switching power supply device, respectively, is configured to drive the power supply voltage in the first direction when the power supply voltage is input in the first direction. The first screw rotates forward and rotates into the first screw hole of the other packing box; or when the power supply voltage in the second direction is input, the first screw is driven to rotate reversely and rotate out of the the first screw hole of the other container; and

A first power-off device, electrically connected to the first drive device, configured to disconnect the power supply acting on the first drive device when it is detected that the first screw rod is locked with the first screw hole voltage.

In one embodiment, the consolidation box further includes:

a second screw hole provided on the second side surface;

A second detection device and a rotatable second screw are provided on the fourth side, the second screw is adapted to the second screw hole, and the second detection device is configured to detect the fourth side when the fourth side is detected. Conduction when the distance from the second side of the other consolidated container is less than the second preset value;

A second driving device, in driving connection with the second screw, is electrically connected with the second detection device and the switching power supply device respectively, and is configured to drive the power supply voltage in the first direction when the power supply voltage in the first direction is input. The second screw rotates forwardly and rotates into the second screw hole of the other packing box; or when the power supply in the second direction is input, the second screw is driven to rotate reversely and rotate out of the second screw hole the second screw hole of the other container; and

A second power-off device, electrically connected to the second driving device, is configured to disconnect the power supply acting on the second driving device when it is detected that the second screw rod is locked with the second screw hole voltage.

In one embodiment, the switching power supply device includes a first relay module, a second relay module and a first switching module;

The first relay module, electrically connected to the first drive device, is configured to output the power supply voltage to the first drive device in the second direction when a first control voltage is input, and to output the power supply voltage to the first drive device in the second direction when the first control voltage is input outputting the power supply voltage to the first driving device in the first direction when the first control voltage is input;

the second relay module, electrically connected to the second drive device, is configured to output the power supply voltage to the second drive device in the second direction when the first control voltage is input, and outputting the power supply voltage to the second driving device in the first direction when the input of the first control voltage is stopped;

The first switching module is electrically connected to the first relay module and the second relay module, respectively, and is configured to output the first control voltage when the operation command is input.

In one embodiment, the first switching module includes a first switch assembly and a second switch assembly;

the first switch assembly and the second switch assembly are mechanically linked;

the first switch assembly, electrically connected to the first relay module, is configured to output the first control voltage to the first relay module according to the operation instruction;

The second switch assembly, electrically connected to the second relay module, is configured to output the first control voltage to the second relay module according to the operation instruction.

In one embodiment, the first relay module includes a first relay;

The first end of the coil of the first relay is connected to the first control voltage input end of the first relay module, the second end of the coil of the first relay is connected to the power ground, and the first end of the first relay is connected to the power supply ground. The movable contact is connected to the power supply voltage input end of the first relay module, the second movable contact of the first relay is connected to the power supply ground, the first static contact of the first relay and the first The third static contact of the relay is connected to the first direction output terminal of the power supply voltage of the first relay module, and the second static contact of the first relay and the fourth static contact of the first relay are both connected to the second direction output terminal of the power supply voltage of the first relay module;

Wherein, the first movable contact of the first relay is respectively matched with the first static contact of the first relay and the third static contact of the first relay, and the second movable contact of the first relay The points are matched with the second stationary contact of the first relay and the fourth stationary contact of the first relay, respectively.

In one embodiment, the second relay module includes a second relay;

The first end of the coil of the second relay is connected to the first control voltage input end of the second relay module, the second end of the coil of the second relay is connected to the power ground, and the first end of the second relay is connected to the power ground. The movable contact is connected to the power supply voltage input end of the second relay module, the second movable contact of the second relay is connected to the power supply ground, the first static contact of the second relay and the second The third static contact of the relay is connected to the first direction output terminal of the power supply voltage of the second relay module, and the second static contact of the second relay and the fourth static contact of the second relay are both connected to the second direction output terminal of the power supply voltage of the second relay module;

Wherein, the first movable contact of the second relay is respectively matched with the first static contact of the second relay and the third static contact of the second relay, and the second movable contact of the second relay The points are matched with the second stationary contact of the second relay and the fourth stationary contact of the second relay, respectively.

In one embodiment, the first switch assembly includes a first reset switch;

The first terminal of the first reset switch is connected to the first control voltage input terminal of the first switch component, and the second terminal of the first reset switch is connected to the first control voltage output of the first switch component end.

In one embodiment, the second switch assembly includes a second reset switch;

The first terminal of the second reset switch is connected to the first control voltage input terminal of the second switch component, and the second terminal of the second reset switch is connected to the first control voltage output of the second switch component end.

In one embodiment, the first circuit breaker includes a first circuit breaker;

The first circuit breaker, connected in series with the first driving device, is configured to detect the first operating current of the first driving device and disconnect the function when the first operating current is greater than a first preset value the supply voltage at the first drive means.

In one embodiment, the second circuit breaker includes a second circuit breaker;

The second circuit breaker, connected in series with the second driving device, is configured to detect the second operating current of the second driving device and disconnect the function when the second operating current is greater than a second preset value the supply voltage at the second drive means.

In one embodiment, the first detection device includes a first microswitch;

The pressing contact of the first micro switch is used to detect the distance between the third side surface and the first side surface of another assembled box, and the first end of the first micro switch is connected to the first driving device, so The second ends of the first micro switch are respectively connected to the first direction power supply voltage output end of the switching power supply device and the second direction power supply voltage output end of the switching power supply device.

In one embodiment, the second detection device includes a second microswitch;

The pressing contact of the second micro switch is used to detect the distance between the fourth side and the second side of the other assembled box, and the first end of the second micro switch is connected to the second driving device, so The second ends of the second micro switch are respectively connected to the first-direction power supply voltage output end of the switching power supply device and the second-direction power supply voltage output end of the switching power supply device.

In one embodiment, the consolidation box further includes:

a third screw hole provided on the second side surface;

A third detection device and a rotatable third screw are provided on the fourth side, the third screw is adapted to the third screw hole, and the third detection device is configured to detect the fourth side when the fourth side is detected. turn on when the distance from the second side of the other consolidated container is less than the third preset value; and

A third driving device, drivingly connected to the third screw rod, and electrically connected to the switching power supply device, is configured to drive the third screw rod to rotate forwardly when the power supply voltage in the first direction is input. Rotate into the third screw hole of the other packing box; or when the power supply voltage in the second direction is input, the third screw is driven to rotate in reverse and rotate out of the first screw hole of the other packing box. Three screw holes;

Wherein, the switching power supply device is also electrically connected to the first detection device and the third driving device, respectively, and is specifically configured to stop the input of the operation command and the first detection device and the third detection device When both are turned on, the power supply voltage is output to the third driving device in the first direction; when the input of the operation command is stopped and the first detection device and the third detection device are both turned on and After the third detection device is turned on for a first period of time, it stops outputting the power supply voltage to the third driving device in the first direction, and outputs the power supply voltage to the third driving device in the first direction. a first drive device; when the operation command is input and both the first detection device and the third detection device are turned on, output the power supply voltage to the third drive device in the second direction; When the operation command is input, the first detection device and the third detection device are both turned on, and the third detection device is turned on for a first period of time, stop outputting the power supply voltage in the second direction to the third driving device, and outputting the power supply voltage to the first driving device in the second direction.

In one embodiment, the switching power supply device includes a third relay module, a fourth relay module and a second switching module;

The second switching module, electrically connected to the first detection device, is configured to transfer the power supply voltage to the third relay module when the first detection device is turned on; and when the input of the outputting a second control voltage when operating an instruction;

The third relay module, which is electrically connected to the second switching module, is configured to switch the power supply voltage to the first direction and output when the second control voltage is stopped to be input; When the second control voltage is applied, the power supply voltage is transferred to the second direction and output;

The fourth relay module is electrically connected to the third relay module and the third detection device respectively, and is configured to output the power supply voltage to the third detection device when the third detection device is turned on The driving device stops outputting the power supply voltage to the third driving device after delaying the first time period, and outputs the power supply voltage to the first driving device.

In one embodiment, the second switching module includes a third reset switch;

The first terminal of the third reset switch is connected to the power supply voltage input terminal of the second switching module, and the second terminal of the third reset switch is connected to the power supply voltage output terminal of the second switching module.

In one embodiment, the third relay module includes a third relay;

The first end of the coil of the third relay is connected to the second control voltage input end of the third relay module, and the first movable contact of the third relay is connected to the power supply voltage of the third relay module The input terminal, the first static contact of the third relay and the third static contact of the third relay are both connected to the first direction output terminal of the power supply voltage of the third relay module, and the third relay The second static contact of the third relay and the fourth static contact of the third relay are both connected to the second direction output terminal of the power supply voltage of the third relay module;

Wherein, the first movable contact of the third relay is respectively matched with the first static contact of the third relay and the third static contact of the third relay, and the second movable contact of the third relay The points are matched with the second stationary contact of the third relay and the fourth stationary contact of the third relay, respectively.

In one embodiment, the fourth relay module includes a time relay;

The coil of the time relay is connected in series with the third detection circuit, and the first instantaneous contact of the time relay and the first delay contact of the time relay are both connected to the fourth relay module. The first direction input terminal of the power supply voltage, the second instantaneous contact of the time relay and the second delay contact of the time relay are both connected to the second direction input terminal of the power supply voltage of the fourth relay module, so The third momentary contact of the time relay and the third delay contact of the time relay are both connected to the power supply voltage output terminal of the first power supply device of the fourth relay module, and the fourth momentary contact of the time relay Both the point and the fourth delay contact of the time relay are connected to the power supply voltage output terminal of the third power supply device of the fourth relay module.

In one embodiment, the first driving device includes a first DC motor;

The output shaft of the first DC motor is connected to the first screw drive, the positive pole of the first DC motor is connected to the first direction input end of the power supply voltage of the first driving device, and the first direction of the first DC motor is connected. The negative pole is connected to the second direction input terminal of the power supply voltage of the first driving device.

In a second aspect, an LED display screen is provided, including a display module and the combined case according to any embodiment of the first aspect;

The display module is installed on the combined box.

In a third aspect, an LED display device is provided, comprising a plurality of LED display screens according to any embodiment of the second aspect;

A plurality of the LED display screens are placed in the same manner and arranged in a grid.

beneficial effect

The beneficial effect of the consolidated container provided by the embodiment of the present application is that: when two consolidated containers of the present application are fixedly installed, it is only necessary to place the consolidated container and the other consolidated container in an adjacent position, and the first detection device turn on, so that the first driving device drives the first screw of the combined box to lock the first screw hole of the other combined box. After locking, the first power-off device will disconnect and act on the first driving device. supply voltage, thus completing the fixation between the two consolidation boxes. When the two fixed assembled boxes need to be disassembled, it is only necessary to manually reset the first power-off device, and then input an operation command to the switching power supply device, so that the first driving device drives the first screw and the first screw of the combined box. Unlock the first screw hole of the other packing box. After the unlocking is completed, the packing box and the other packing box can be removed. The assembly box of the present application requires less manual participation in the disassembly and assembly process, and does not need to manually operate the locking structure of the assembly box, which reduces the operator's work intensity and improves the process of disassembling and assembling a plurality of assembly boxes. time efficiency.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or exemplary technologies. Obviously, the drawings in the following description are only for the present application. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a first structural schematic diagram of a consolidated container provided by an embodiment of the present application;

Fig. 2 is the second structural schematic diagram of the consolidated container provided by the embodiment of the present application;

FIG. 3 is a block diagram of a first example control principle of a consolidated container provided by an embodiment of the present application;

FIG. 4 is a block diagram of a second example control principle of the consolidated container provided by the embodiment of the present application;

5 is a block diagram of a third example control principle of the consolidated container provided by the embodiment of the present application;

6 is a block diagram of a fourth example control principle of a consolidated container provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of a first example control circuit of a consolidated container provided by an embodiment of the present application;

8 is a block diagram of a fifth example control principle of the consolidated container provided by the embodiment of the present application;

9 is a block diagram of the sixth example of the control principle of the consolidated container provided by the embodiment of the present application;

FIG. 10 is a schematic diagram of a second example control circuit of the combined case provided by the embodiment of the present application;

FIG. 11 is a schematic diagram of a combination of an LED display device provided by an embodiment of the present application.

Embodiments of the present invention

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present application.

In order to illustrate the technical solutions provided in the present application, the following detailed description is given in conjunction with the specific drawings and embodiments.

Some embodiments of the present application provide a combined case, please refer to FIG. 1 to FIG. 3 , and the combined case includes a box body. The box body includes a first side 11 , a second side 12 , a third side 13 and a fourth side 14 . The first side 11 and the third side 13 are opposed to each other, and the second side 12 and the fourth side 14 are opposed to each other.

The first side surface 11 , the second side surface 12 , the third side surface 13 and the fourth side surface 14 are connected clockwise to form a rectangular frame structure.

The assembled box further includes a first screw hole 111 , a first screw 131 , a switching power supply device 240 , a first driving device 220 and a first power-off device 210 .

The first screw holes 111 are provided on the first side surface 11 .

The first screw 131 is rotatably disposed on the third side surface 13 , and the first screw 131 is matched with the first screw hole 111 .

The first detection device 230 is disposed on the third side surface 13, and the first detection device 230 is configured to conduct electricity when it is detected that the distance between the third side surface 13 and the first side surface 11 of the other packing box is smaller than the first preset value.

The switching power supply device 240 is configured to output the power supply voltage in the first direction when the first detection device 230 is turned on, and output the power supply voltage in the second direction when an operation command is input.

The first driving device 220 is in driving connection with the first screw 131, and is electrically connected with the first detecting device 230 and the switching power supply device 240 respectively, and is configured to drive the first screw 131 to rotate forwardly when the power supply voltage in the first direction is input. Rotate into the first screw hole 111 of the other packing box; or when the power supply voltage in the second direction is input, the first screw 131 is driven to reversely rotate and rotate out of the first screw hole 111 of the other packing box.

The first power-off device 210 is electrically connected to the first driving device 220 and is configured to disconnect the power supply voltage acting on the first driving device 220 when it is detected that the first screw 131 is locked with the first screw hole 111 .

Wherein, the switching power supply device 240 , the first driving device 220 and the first power-off device 210 are all arranged inside the assembled box (not shown in the figure); the switching power-supply device 240 , the first driving device 220 and the first power-off device 210 It can be integrated on the circuit board and then installed inside the package.

In this embodiment, when the consolidation box is installed and fixed with another consolidation box, the consolidation box and another consolidation box are manually placed in adjacent positions. At this time, the third side 13 of the consolidation box The distance of the first side surface 11 of the packing box will be smaller than the first preset value, and the first detection device 230 is turned on at this time. After the first detecting device 230 is turned on, the switching power supply device 240 will output the power supply voltage to the first driving device 220 in the first direction. When the power supply voltage in the first direction is input, the first driving device 220 can drive the first screw 131 to rotate forward, and when the first screw 131 rotates forward, it will rotate into the first screw hole 111 of another packing box. When the first screw 131 is rotated into the first screw hole 111 of the other packing box and reaches the preset range, the first screw 131 cannot continue to penetrate into the first screw hole 111 of the other packing box. The first screw hole 111 of a packing box is locked. When the first power-off device 210 detects that the first screw 131 is locked with the first screw hole 111 of another packing box, it disconnects the power supply voltage acting on the first driving device 220 to stop the first driving device 220 from working. Through the above process, the installation and fixation of the present consolidation box and another consolidation box are completed.

When the present packing box is separated from another packing box, the first power-off device 210 is manually closed, so that the first power-off device 210 continues to provide the power supply voltage for the first drive device 220 . Then, when the switching power supply device 240 receives the input operation command, the switching power supply device 240 outputs the power supply voltage to the first driving device 220 in the second direction. When the power supply voltage in the second direction is input, the first driving device 220 can drive the first screw 131 to rotate in the reverse direction, and the reverse rotation of the first screw 131 will rotate the first screw hole 111 of another packing box. When the first screw 131 is completely separated from the first screw hole 111 of the other packing box, the packing box is moved away from the other packing box, so that the third side 13 of the packing box is connected to the first side 11 of the other packing box. The distance is greater than the first preset value, so that the first detection device 230 stops conducting. Through the above process, the dismantling and separation of this consolidation box and another consolidation box is completed.

Among them, when the screw is rotated in the forward direction, it will penetrate into the screw hole and be locked with the screw hole; when the screw is rotated in the reverse direction, it will be away from the screw hole and loosened from the screw hole.

Applying the consolidated container of this embodiment, when two consolidated containers are fixedly installed, it is only necessary to place the consolidated container and the other consolidated container in an adjacent position, and the first detection device 230 is turned on, so that the first detection device 230 is turned on. The driving device 220 drives the first screw 131 of the packing box to be locked with the first screw hole 111 of the other packing box. After locking, the first power-off device 210 will disconnect the power supply acting on the first driving device 220 voltage, so as to complete the fixed installation; and when the two fixedly installed assembled boxes need to be disassembled, it is only necessary to manually reset the first power-off device 210, and then input an operation command to the switching power supply device 240 to make the first drive device 240. 220 drives the first screw 131 of the combined box to unlock the first screw hole 111 of the other combined box, and after the unlocking is completed, move the combined box and the other combined box to be larger than the first preset value; The disassembly and assembly process of the consolidation box reduces the part of manual participation, and does not need to manually operate the locking structure of the consolidation box, which reduces the work intensity of the operator and improves the disassembly and assembly efficiency of the consolidation box.

Wherein, the structure of this packing box is the same as that of another packing box; the operation instruction input to the switching power supply device 240 may be a pressing operation. When a person manually presses the switching power supply device 240 , it is equivalent to inputting an operation instruction to the switching power supply device 240 . The power supply device 300 for supplying the power supply voltage can be a battery, and the battery can be detachably installed in the assembled box; the power supply device 300 for power supply can also be an external power supply, and only a power connector is provided in the assembled box. The external arrangement of the power supply device 300 enables the consolidation container to be applicable to more application scenarios, such as eliminating the constraints imposed by shipping and air transport on the arrangement of the power supply device 300 for the consolidation container. The first power-off device 210 is an electronic component that is disconnected when the current flowing therethrough is too large, and can be restored to be closed and turned on by manual operation after disconnection; exemplarily, the first power-off device 210 may be Self-resetting fuses, DC overload protectors or circuit breakers.

Please refer to FIG. 1 , FIG. 2 and FIG. 4 , in one embodiment, the consolidation box further includes a second screw hole 121 , a second screw 141 , a second detection device 270 , a second driving device 260 and a second power-off device 250 .

The second screw holes 121 are provided on the second side surface 12 .

The second screw 141 is rotatably disposed on the fourth side surface 14 , and the second screw 141 is matched with the second screw hole 121 .

The second detection device 270 is disposed on the fourth side surface 14, and the second detection device 270 is configured to conduct electricity when it is detected that the distance between the fourth side surface 14 and the second side surface 12 of another packing box is smaller than a second preset value.

The second driving device 260 is in driving connection with the second screw 141, and is electrically connected with the second detecting device 270 and the switching power supply device 240 respectively, and is configured to drive the second screw 141 to rotate forwardly when the power supply voltage in the first direction is input. Rotate into the second screw hole 121 of the other packing box; or when the power supply voltage in the second direction is input, the second screw 141 is driven to rotate reversely and rotate out of the second screw hole 121 of the other packing box.

The second power-off device 250 is electrically connected to the second driving device 260 , and is configured to disconnect the power supply voltage acting on the second driving device 260 when it is detected that the second screw 141 is locked with the second screw hole 121 .

In this embodiment, when the consolidation box is installed and fixed with another consolidation box, the consolidation box and the other consolidation box are manually placed in adjacent positions, and the fourth side 14 of the consolidation box is connected to the other consolidation box. The distance of the second side surface 12 is smaller than the first preset value, and the second detection device 270 is turned on at this time. After the second detection device 270 is turned on, and stops inputting operation commands to the switching power supply device 240 , the switching power supply device 240 outputs the input power supply voltage to the second driving device 260 in the first direction. When the power supply voltage in the first direction is input, the second driving device 260 drives the second screw 141 to rotate forward, and when the second screw 141 rotates forward, it will rotate into the second screw hole 121 of another packing box. When the second screw 141 is rotated into the second screw hole 121 of the other packing box and reaches the preset range, the second screw 141 cannot go further into the second screw hole 121 of the other packing box. The second screw hole 121 of a packing box is locked. When the second power-off device 250 detects that the second screw 141 is locked with the second screw hole 121 of the other packing box, it disconnects the power supply voltage acting on the second driving device 260 to stop the second driving device 260 from working. Through the above process, the installation and fixation of the present consolidation box and another consolidation box are completed.

When the present packing box is separated from another packing box, the second power-off device 250 is manually closed, so that the second power-off device 250 continues to provide the power supply voltage to the second driving device 260 . Then, an operation command is input to the switching power supply device 240 , so that the switching power supply device 240 outputs the power supply voltage to the second driving device 260 in the second direction. The second driving device 260 is powered on according to the power supply voltage in the second direction, and drives the second screw 141 to rotate in the reverse direction. The reverse rotation of the second screw 141 will rotate out the second screw hole 121 of another packing box. When the second screw 141 is completely separated from the second screw hole 121 of the other packing box, the packing box is moved away from the other packing box, so that the fourth side 14 of the packing box is connected to the second side 12 of the other packing box. The distance is greater than the first preset value, so that the second detection device 270 stops conducting. Through the above process, the dismantling and separation of this consolidation box and another consolidation box is completed.

Wherein, the installation and fixation of the first screw 131 of this combined box and the first screw hole 111 of another combined box in this embodiment is the fixation of the two combined boxes in the horizontal axis direction. The second screw 141 of this combined box and the other The installation and fixation of the second screw holes 121 of a combined box is the fixation of the two combined boxes in the longitudinal axis direction; in other embodiments, the first screw holes 131 of the combined box and the first screw holes 111 of the other combined box The installation and fixation is the fixation of the two consolidation boxes in the longitudinal axis direction, and the installation and fixation of the second screw 141 of the present consolidation box and the second screw hole 121 of the other consolidation box is the fixation of the two consolidation boxes in the horizontal axis direction. Using the consolidation box of this embodiment, the grid-like installation and fixation of a plurality of consolidation boxes can be realized.

Wherein, the second power-off device 250 is an electronic component that is disconnected when the current flowing through it is too large, and can be restored to be closed and turned on by manual control after disconnection; exemplarily, the second power-off device 250 Can be a self-resetting fuse, DC overload protector or circuit breaker.

Referring to FIG. 5 , in one embodiment, the switching power supply device 240 includes a first relay module 241 , a second relay module 242 and a first switch module 243 .

The first relay module 241, electrically connected to the first driving device 220, is configured to output the power supply voltage to the first driving device 220 in the second direction when the first control voltage is input, and to output the power supply voltage to the first driving device 220 in the second direction when the input of the first control voltage is stopped. The power supply voltage is output to the first driving device 220 in the first direction.

The second relay module 242 is electrically connected to the second driving device 260, and is configured to output the power supply voltage to the second driving device 260 in the second direction when the first control voltage is input, and to output the power supply voltage to the second driving device 260 in the second direction when the input of the first control voltage is stopped. The power supply voltage is output to the second driving device 260 in the first direction.

The first switching module 243 is electrically connected to the first relay module 241 and the second relay module 242 respectively, and is configured to output a first control voltage when an operation command is input.

In this embodiment, when the assembled container is installed and fixed, the first switching module 243 stops inputting operation commands and stops outputting the first control voltage to the first relay module 241 and the second relay module 242 . When the first relay module 241 stops inputting the first control voltage, it outputs the power supply voltage to the first driving device 220 in the first direction, so that the first driving device 220 rotates in the forward direction to drive the first screw 131 and the other packing box. The first screw hole 111 is locked; the second relay module 242 outputs the power supply voltage to the second driving device 260 in the first direction when the input of the first control voltage is stopped, so that the second driving device 260 rotates forwardly to drive the second driving device 260 The screw 141 is locked with the second screw hole 121 of the other packing box.

When the assembled box is disassembled, an operation command is input to the first switching module 243 , and the first switching module 243 outputs the first control voltage to the first relay module 241 and the second relay module 242 . The first relay module 241 outputs the power supply voltage to the first driving device 220 in the second direction when the first control voltage is input, so that the first driving device 220 reversely rotates and drives the first screw 131 and the first screw of another packing box. A screw hole 111 is unlocked; the second relay module 242 outputs the power voltage to the second driving device 260 in the second direction when the first control voltage is input, so that the second driving device 260 reversely rotates and drives the second screw 141 and the The second screw hole 121 of the other packing box is unlocked.

Referring to FIG. 6 , in one embodiment, the first switching module 243 includes a first switch component 2431 and a second switch component 2432 .

The first switch assembly 2431 and the second switch assembly 2432 are mechanically linked.

The first switch component 2431 is electrically connected to the first relay module 241 and is configured to output the first control voltage to the first relay module 241 according to the operation instruction.

The second switch assembly 2432 is electrically connected to the second relay module 242 and configured to output the first control voltage to the second relay module 242 according to the operation instruction.

In this embodiment, the first switch assembly 2431 and the second switch assembly 2432 are mechanically interlocked, that is, the first switch assembly 2431 and the second switch assembly 2432 act synchronously and have the same state. The first switch component 2431 is turned on when an operation command is input, and transfers the first control voltage to the first relay module 241; the second switch component 2432 is turned on when an operation command is input, and transfers the first control voltage to the first relay module 241. Two relay modules 242 .

Please refer to FIG. 7 , in one embodiment, the first relay module 241 includes a first relay KA1 .

The first end of the coil of the first relay KA1 is connected to the first control voltage input end of the first relay module 241 , the second end of the coil of the first relay KA1 is connected to the power ground, and the first movable contact of the first relay KA1 is connected to the power supply ground. To the power supply voltage input end of the first relay module 241, the second movable contact of the first relay KA1 is connected to the power ground, the first static contact of the first relay KA1 and the third static contact of the first relay KA1 are both Connected to the first direction output terminal of the power supply voltage of the first relay module 241 , the second static contact of the first relay KA1 and the fourth static contact of the first relay KA1 are both connected to the power supply voltage of the first relay module 241 The second direction output terminal.

The first movable contact of the first relay KA1 is respectively matched with the first static contact of the first relay KA1 and the third static contact of the first relay KA1, and the second movable contact of the first relay KA1 is respectively matched with the first static contact of the first relay KA1 and the third static contact of the first relay KA1. The second stationary contact of a relay KA1 matches the fourth stationary contact of the first relay KA1.

Referring to FIG. 7, in one embodiment, the second relay module 242 includes a second relay KA2.

The first end of the coil of the second relay KA2 is connected to the first control voltage input end of the second relay module 242, the second end of the coil of the second relay KA2 is connected to the power ground, and the first movable contact of the second relay KA2 is connected to the power supply ground To the power supply voltage input terminal of the second relay module 242, the second movable contact of the second relay KA2 is connected to the power ground, the first static contact of the second relay KA2 and the third static contact of the second relay KA2 are both Connected to the first direction output terminal of the power supply voltage of the second relay module 242 , the second static contact of the second relay KA2 and the fourth static contact of the second relay KA2 are both connected to the power supply voltage of the second relay module 242 The second direction output terminal.

Wherein, the first moving contact of the second relay KA2 is matched with the first static contact of the second relay KA2 and the third static contact of the second relay KA2 respectively, and the second moving contact of the second relay KA2 is respectively matched with the first static contact of the second relay KA2 and the third static contact of the second relay KA2. The second static contact of the second relay KA2 is matched with the fourth static contact of the second relay KA2.

Referring to FIG. 7 , in one embodiment, the first switch component 2431 includes a first reset switch SB1 .

The first terminal of the first reset switch SB1 is connected to the first control voltage input terminal of the first switch element 2431 , and the second terminal of the first reset switch SB1 is connected to the first control voltage output terminal of the first switch element 2431 .

Referring to FIG. 7, in one embodiment, the second switch component 2432 includes a second reset switch SB2.

The first terminal of the second reset switch SB2 is connected to the first control voltage input terminal of the second switch element 2432 , and the second terminal of the second reset switch SB2 is connected to the first control voltage output terminal of the second switch element 2432 .

Referring to FIG. 7, in one embodiment, the first circuit breaker includes a first circuit breaker QF1.

The first circuit breaker QF1, connected in series with the first driving device 220, is configured to detect the first operating current of the first driving device 220 and disconnect the action on the first driving device when the first operating current is greater than the first preset value 220 supply voltage.

Referring to FIG. 7, in one embodiment, the second circuit breaker includes a second circuit breaker QF2.

The second circuit breaker QF2, connected in series with the second driving device 260, is configured to detect the second operating current of the second driving device 260 and disconnect the second driving device when the second operating current is greater than the second preset value 260 supply voltage.

Please refer to FIG. 7 , in one embodiment, the first detection device 230 includes a first micro switch SM1 .

The pressing contact of the first micro switch SM1 is used to detect the distance between the third side 13 and the first side 11 of the other assembled box. The first end of the first micro switch SM1 is connected to the first driving device 220, and the first The second terminals of the micro switch SM1 are respectively connected to the first-direction power supply voltage output terminal of the switching power supply device 240 and the second-direction power supply voltage output terminal of the switching power supply device 240 .

Please refer to FIG. 7 , in one embodiment, the second detection device 270 includes a second micro switch SM2 .

The pressing contact of the second micro switch SM2 is used to detect the distance between the fourth side 14 and the second side 12 of the other packing box. The first end of the second micro switch SM2 is connected to the second driving device 260, and the second The second terminals of the micro switch SM2 are respectively connected to the first-direction power supply voltage output terminal of the switching power supply device 240 and the second-direction power supply voltage output terminal of the switching power supply device 240 .

Please refer to FIG. 7 and FIG. 10 , in one embodiment, the first driving device 220 includes a first DC motor M1;

The output shaft of the first DC motor M1 is drivingly connected to the first screw 131 , the positive pole of the first DC motor M1 is connected to the first direction input end of the power supply voltage of the first driving device 220 , and the negative pole of the first DC motor M1 is connected to the first direction input end of the power supply voltage of the first driving device 220 . The second direction input terminal of the power supply voltage of the driving device 220 .

Referring to FIG. 7 , in one embodiment, the power supply device 300 includes a first power supply unit 310 and a second power supply unit 320 . The first power supply unit 310 is used to supply power to the first driving device 220 , and the second power supply unit 320 is used to supply power to the first driving device 220 . The second drive device 260 is powered.

The combined box shown in Figure 7 will be described below in combination with the working principle:

When the second consolidation box is placed on the next wall (horizontal) of the consolidation box, so that the distance between the third side 13 of the consolidation box and the first side 11 of the second consolidation box is less than the first preset value, the first The pressing contact of the micro switch SM1 is pressed by the first side surface 11 of the second packing box, and the first micro switch SM1 is turned on. The first micro switch SM1 is turned on, and the power supply voltage output by the positive pole of the first power supply unit 310 sequentially passes through the first movable contact of the first relay KA1, the third static contact of the first relay KA1 and the first micro switch SM1 The output is output to the positive pole of the first DC motor M1 to make the first DC motor M1 rotate in the forward direction. The first DC motor M1 rotates forwardly to drive the first screw 131 of the combined box and the first screw hole 111 of the second combined box to be locked, so that the combined box and the second combined box are fixed to each other, and after the locking , the first DC motor M1 is locked, the current flowing through the first DC motor M1 and the first circuit breaker QF1 increases, the first circuit breaker QF1 acts to disconnect when the current is greater than a certain value, at this time the first DC motor M1 The circuit in which it is located is in an open circuit state, so the power supply voltage stops acting on the first DC motor M1, so that the automatic power-off and stop operation is realized after the combined box and the second combined box are locked and fixed to each other.

When the third consolidation box is placed on the next wall (longitudinal) of the consolidation box, so that the distance between the fourth side 14 of the consolidation box and the second side 12 of the third consolidation box is less than the second preset value, the second The pressing contact of the micro switch SM2 is pressed by the second side surface 12 of the third packing box, and the second micro switch SM2 is turned on. The second micro switch SM2 is turned on, and the power supply voltage output by the positive pole of the second power supply unit 320 sequentially passes through the first movable contact of the second relay KA2, the third static contact of the first relay KA1 and the second micro switch SM2 output to the positive pole of the second DC motor M2 to make the second DC motor M2 rotate in the forward direction. The second DC motor M2 rotates forwardly to drive the second screw 141 of the combined box and the second screw hole 121 of the third combined box to be locked, so that the combined box and the third combined box are fixed to each other, and after the locking , the second DC motor M2 is locked, the current flowing through the second DC motor M2 and the second circuit breaker QF2 increases, and the second circuit breaker QF2 acts to disconnect when the current is greater than a certain value, at this time the second DC motor M2 The circuit in which it is located is in an open circuit state, so the power supply voltage stops acting on the second DC motor M2, which realizes the automatic power-off and stop operation after the present packing box and the third packing box are locked and fixed to each other.

When the second packing box needs to be separated from the present packing box, press the first reset switch SB1 to turn on the first reset switch SB1, and manually close the first circuit breaker QF1, at this time, the positive pole of the first power supply unit 310 passes through the A reset switch SB1 outputs the first control voltage to the coil of the first relay KA1. The coil of the first relay KA1 is energized, the first movable contact of the first relay KA1 is connected with the fourth static contact of the first relay KA1, and the second movable contact of the first relay KA1 is connected with the first relay KA1. The second static contact is connected by suction. The power supply voltage output by the positive pole of the first power supply unit 310 sequentially passes through the first movable contact of the first relay KA1, the fourth static contact of the first relay KA1, the first circuit breaker QF1, the negative pole of the first DC motor M1, the The positive pole of the DC motor M1, the second static contact of the first relay KA1 and the second movable contact of the first relay KA1 return to the negative pole of the first power supply unit 310, so the power supply voltage acts on the negative pole of the first DC motor M1 , the first DC DC motor rotates in reverse. The first DC motor M1 reversely rotates and drives the first screw 131 of the present packing box and the first screw hole 111 of the second packing box to unlock. After the combined box and the second combined box are unlocked, the second combined box is moved away from the combined box, so that the first micro switch SM1 stops being pressed and disconnected to complete the disassembly of the combined box and the second combined box. point.

When it is necessary to separate the third consolidation box from the present consolidation box, press the second reset switch SB2 to turn on the second reset switch SB2, and manually close the second circuit breaker QF2, at this time, the positive pole of the second power supply unit 320 passes through the The two reset switches SB2 output the first control voltage to the coil of the second relay KA2. The coil of the second relay KA2 is energized, the first movable contact of the second relay KA2 is connected with the fourth static contact of the second relay KA2, and the second movable contact of the second relay KA2 is connected to the fourth static contact of the second relay KA2. The second static contact is connected by suction. The power supply voltage output by the positive pole of the second power supply unit 320 sequentially passes through the first movable contact of the second relay KA2, the fourth stationary contact of the second relay KA2, the second circuit breaker QF2, the negative pole of the second DC motor M2, the The positive pole of the two DC motors M2, the second static contact of the second relay KA2 and the second movable contact of the second relay KA2 return to the negative pole of the second power supply unit 320, so the power supply voltage acts on the negative pole of the second DC motor M2 , the second DC DC motor rotates in reverse. The second DC motor M2 reversely rotates and drives the second screw 141 of the present packing box and the second screw hole 121 of the third packing box to unlock. After the combined box and the third combined box are unlocked, the third combined box is moved away from the combined box, so that the first micro switch SM1 stops being pressed and disconnected to complete the disassembly of the combined box and the third combined box. point.

Please refer to FIG. 8 , in one embodiment, the assembled box includes a first screw hole 111 , a first screw 131 , a switching power supply device 240 , a first driving device 220 , a first power-off device 210 , a third screw hole 152 , a first Three detection devices 290 , a third screw 151 and a third driving device 280 .

The third screw holes 152 are provided on the second side surface 12 .

The third screw 151 is rotatably disposed on the fourth side surface 14 , and the third screw 151 is matched with the third screw hole 152 .

The third detection device 290 is disposed on the fourth side surface 14, and the third detection device 290 is configured to conduct electricity when it is detected that the distance between the fourth side surface 14 and the second side surface 12 of another packing box is smaller than a third preset value.

The third driving device 280 is drivingly connected to the third screw 151 and electrically connected to the switching power supply device 240 , and is configured to drive the third screw 151 and drive the third screw 151 to rotate and rotate forwardly when the power supply voltage in the first direction is input. into the third screw hole 152 of the other packing box; or when the power supply voltage in the second direction is input, the third screw 151 is driven to reversely rotate and rotate out of the third screw hole 152 of the other packing box.

The switching power supply device 240 is also electrically connected to the first detection device 230 and the third driving device 280 respectively, and is specifically configured to turn on the power supply when the input of the operation command is stopped and the first detection device 230 and the third detection device 290 are both turned on. The voltage is output to the third driving device 280 in the first direction; when the input of the operation command is stopped, the first detection device 230 and the third detection device 290 are both turned on, and the third detection device 290 is turned on for a first period of time, the power supply voltage is stopped. Output to the third driving device 280 in the first direction, and output the power supply voltage to the first driving device 220 in the first direction; when an operation command is input and both the first detection device 230 and the third detection device 290 are turned on, the The power supply voltage is output to the third driving device 280 in the second direction; when an operation command is input, the first detection device 230 and the third detection device 290 are both turned on, and the third detection device 290 is turned on for a first period of time, the power supply voltage is stopped. The power supply voltage is output to the third driving device 280 in the second direction, and the power supply voltage is output to the first driving device 220 in the second direction.

In this embodiment, when the consolidation box is installed and fixed with the second consolidation box and the third consolidation box, the consolidation box and the second consolidation box are first placed in an adjacent position (horizontal), and the consolidation box and the consolidation box are first moved. The third packing box is placed in an adjacent position (longitudinal), and then the power supply device 300 is operated and the power supply voltage is output.

At this time, both the first detection device 230 and the third detection device 290 are turned on, and the switching power supply device 240 stops inputting operation commands, and the switching power supply device 240 outputs the power supply voltage to the third driving device 280 in the first direction, so that the first The three driving device 280 rotates forwardly and drives the third screw 151 of the combined box to be locked with the third screw hole 152 of the third combined box, so that the combined box and the third combined box are fixed to each other; and when the power supply device is switched After 240 outputs the power supply voltage in the first direction to the third driving device 280 for the first time period, the switching power supply device 240 stops outputting the power supply voltage in the first direction to the third driving device 280, and the switching power supply device 240 transfers the input power supply voltage to the third driving device 280. The first direction is output to the first driving device 220, so that the first driving device 220 rotates in the forward direction to drive the first screw 131 of the packing box and the first screw hole 111 of the second packing box to be locked, so that the packing box can be locked. Mutually fixed with the second consolidation box.

After the first screw 131 of the packing box is locked with the first screw hole 111 of the second packing box, the first breaking circuit disconnects the power supply voltage acting on the first driving device 220 to stop the first driving device 220 Work, and then stop the power supply device 300 from working and stop outputting the power supply voltage, that is, the installation and fixing of the present packing box, the second packing box and the third packing box are completed.

When the present packing box is separated from the second packing box and the third packing box, the power supply device 300 is made to output the power supply voltage, and then the operation command is input to the switching power supply device 240 . At this time, both the first detection device 230 and the third detection device 290 are turned on, and the switching power supply device 240 inputs an operation command, and the switching power supply device 240 outputs the power supply voltage to the third driving device 280 in the second direction, so that the third driving device 280 can be driven The device 280 rotates in the reverse direction and drives the third screw 151 of the combined box and the third screw hole 152 of the third combined box to unlock, so as to release the fixation of the combined box and the third combined box; and when the power supply device 240 is switched to After the power supply voltage is output to the third driving device 280 in the second direction for the first time period, the switching power supply device 240 stops outputting the power supply voltage to the third driving device 280 in the second direction, and the switching power supply device 240 transfers the input power supply voltage to the second driving device 280 . The direction is output to the first driving device 220, so that the first driving device 220 rotates in the reverse direction and drives the first screw 131 of the combined box and the first screw hole 111 of the second combined box to unlock, so that the combined box and the first screw hole 111 of the second combined box are unlocked. The fixing of the second packing box is released; then the first packing box and the third packing box can be moved out of the original packing box.

In this embodiment, by switching the power supply device 240 to control the operation of the third driving device 280 first, and then delay the first time period to control the operation of the first driving device 220, so that the power supply device 300 only controls the operation of the first driving device 220 and the third driving device 220 at the same time. One of the three driving devices 280 supplies power, thus reducing the requirements for the power supply device 300; at the same time, powering off the third driving device 280 by switching the power supply reduces the required control elements; therefore, it is possible to reduce the control requirements components, reducing the volume requirements of the LCL and reducing the control cost.

Please refer to FIG. 9 , in one embodiment, the switching power supply device 240 includes a third relay module 244 , a fourth relay module 245 and a second switch module 246 ;

The second switching module 246 is electrically connected to the first detection device 230, and is configured to transfer the power supply voltage to the third relay module 244 when the first detection device 230 is turned on; and to output the second control voltage when an operation command is input ;

The third relay module 244, which is electrically connected to the second switching module 246, is configured to switch the power supply voltage to the first direction and output when the second control voltage is stopped; when the second control voltage is input, switch the power supply voltage Transfer to the second direction and output;

The fourth relay module 245 is electrically connected to the third relay module 244 and the third detection device 290, respectively, and is configured to output the power supply voltage to the first driving device 220 when the third detection device 290 is turned on, and after a delay After the first time period, the output of the power supply voltage to the first driving device 220 is stopped, and the power supply voltage is output to the third driving device 280 .

Please refer to FIG. 10 , in one embodiment, the second switch module 246 includes a third reset switch SB3;

The first terminal of the third reset switch SB3 is connected to the power supply voltage input terminal of the second switching module 246 , and the second terminal of the third reset switch SB3 is connected to the power supply voltage output terminal of the second switching module 246 .

Please refer to FIG. 10 , in one embodiment, the third relay module 244 includes a third relay KA3;

The first end of the coil of the third relay KA3 is connected to the second control voltage input end of the third relay module 244, the first movable contact of the third relay KA3 is connected to the power supply voltage input end of the third relay module 244, The first static contact of the three relays KA3 and the third static contact of the third relay KA3 are both connected to the first direction output terminal of the power supply voltage of the third relay module 244 , the second static contact of the third relay KA3 and the third static contact of the third relay KA3 The fourth static contacts of the three relays KA3 are all connected to the second direction output terminal of the power supply voltage of the third relay module 244;

Wherein, the first movable contact of the third relay KA3 is respectively matched with the first static contact of the third relay KA3 and the third static contact of the third relay KA3, and the second movable contact of the third relay KA3 is respectively matched with the first static contact of the third relay KA3 and the third static contact of the third relay KA3. The second static contact of the three relays KA3 is matched with the fourth static contact of the third relay KA3.

Please refer to FIG. 10 , in one embodiment, the fourth relay module 245 includes a time relay KT;

The coil of the time relay KT is connected in series with the third detection circuit, and the first instantaneous contact of the time relay KT and the first delay contact of the time relay KT are both connected to the first direction input of the power supply voltage of the fourth relay module 245 terminal, the second momentary contact of the time relay KT and the second delay contact of the time relay KT are both connected to the second direction input terminal of the power supply voltage of the fourth relay module 245, the third momentary contact of the time relay KT and The third delay contact of the time relay KT is connected to the power supply voltage output terminal of the first power supply device 300 of the fourth relay module 245, the fourth instantaneous contact of the time relay KT and the fourth delay contact of the time relay KT Both are connected to the power supply voltage output terminal of the third power supply device 300 of the fourth relay module 245 .

The combined box shown in Figure 10 will be described below in combination with the working principle:

When the second consolidation box is placed on the next wall (horizontal) of the consolidation box, so that the distance between the third side 13 of the consolidation box and the first side 11 of the second consolidation box is less than the first preset value, the first The pressing contact of the micro switch SM1 is pressed by the first side surface 11 of the second packing box, and the first micro switch SM1 is turned on. And the 3rd consolidation box is placed on the next wall (longitudinal) of this consolidation box, so that when the distance between the fourth side 14 of this consolidation box and the second side 12 of the third consolidation box is less than the second preset value, the first The pressing contacts of the three microswitches SM3 are pressed by the second side surface 12 of the third assembled box, and the third microswitch SM3 is turned on. The third power supply unit is then DC operated and outputs the power supply voltage.

The power supply voltage output by the positive pole of the third power supply unit DC acts on the coil of the time relay KT through the third micro switch SM3, the coil of the time relay KT is energized, the first momentary contact of the time relay KT and the first momentary contact of the time relay KT The three momentary contacts are connected and turned on, the second momentary contact of the time relay KT and the fourth momentary contact of the time relay KT are connected and turned on; at this time, the third reset switch SB3 is disconnected, and the coil of the third relay KA3 is de-energized , the first moving contact of the third relay KA3 is connected to the first static contact of the third relay KA3, and the second moving contact of the third relay KA3 is connected to the second static contact of the third relay KA3. , the power supply voltage output by the positive pole of the third power supply unit DC sequentially passes through the first moving contact of the third relay KA3, the first static contact of the third relay KA3, the first instantaneous contact of the time relay KT and the time relay KT The third momentary contact of , is output to the positive pole of the third DC motor M3, so that the third DC motor M3 rotates in the forward direction. The third DC motor M3 rotates in the forward direction to drive the third screw 151 of the combined box and the third screw hole 152 of the third combined box to be locked, so that the combined box and the third combined box are fixed to each other.

When the coil of the time relay KT is energized for the first time, the first momentary contact of the time relay KT and the third momentary contact of the time relay KT are disconnected, and the second momentary contact of the time relay KT and the time relay KT are disconnected. The fourth momentary contact is disconnected, the first delay contact of the time relay KT and the third delay contact of the time relay KT are disconnected, the second delay contact of the time relay KT and the time relay KT are disconnected. The fourth delay contact is disconnected. The power supply voltage output by the positive pole of the third power supply unit DC sequentially passes through the first movable contact of the third relay KA3, the first static contact of the third relay KA3, the first delay contact of the time relay KT and the The third momentary contact is output to the positive pole of the first DC motor M1, so that the first DC motor M1 rotates in the forward direction. The first DC motor M1 rotates in the forward direction to drive the first screw 131 of the combined box to lock the first screw hole 111 of the second combined box, so that the combined box and the second combined box are fixed to each other.

When the first screw 131 of the combined box is locked with the first screw hole 111 of the second combined box, the first DC motor M1 is locked, and the current flowing through the first DC motor M1 and the first circuit breaker QF1 increases, The first circuit breaker QF1 acts to disconnect when the current is greater than a certain value. At this time, the circuit where the first DC motor M1 is located is in an open-circuit state, so the power supply voltage stops acting on the first DC motor M1, which realizes the combination of the first DC motor and the first DC motor M1. After the two assembled boxes are locked and fixed to each other, the first DC motor M1 is powered off. Then, the third power supply unit DC is controlled to stop outputting the power supply voltage.

When the second packing box and the third packing box need to be separated from the packing box, the DC output power supply voltage of the third power supply unit is re-controlled, and then the third reset switch SB3 is manually controlled to close. At this time, the coil of the third relay KA3 is energized, the first movable contact of the third relay KA3 is connected to the third static contact of the third relay KA3, and the second movable contact of the third relay KA3 is connected to the third relay. The fourth static contact of KA3 is connected and turned on. The coil of the time relay KT is energized, the first momentary contact of the time relay KT and the third momentary contact of the time relay KT are connected and conducted, the second momentary contact of the time relay KT and the fourth momentary contact of the time relay KT are connected. The dot connection is turned on. The power supply voltage output by the positive pole of the third power supply unit DC sequentially passes through the first movable contact of the third relay KA3, the third static contact of the third relay KA3, the first instantaneous contact of the time relay KT and the The third momentary contact is output to the negative pole of the third DC motor M3, so that the third DC motor M3 rotates in the reverse direction. The third DC motor M3 rotates in the reverse direction to drive the third screw 151 of the combined box and the third screw hole 152 of the third combined box to unlock, so as to release the fixation of the combined box and the third combined box.

When the coil of the time relay KT is energized for the first time, the first momentary contact of the time relay KT and the third momentary contact of the time relay KT are disconnected, and the second momentary contact of the time relay KT and the time relay KT are disconnected. The fourth momentary contact is disconnected, the first delay contact of the time relay KT and the third delay contact of the time relay KT are disconnected, the second delay contact of the time relay KT and the time relay KT are disconnected. The fourth delay contact is disconnected. The power supply voltage output by the positive pole of the third power supply unit DC sequentially passes through the first movable contact of the third relay KA3, the third static contact of the third relay KA3, the first delay contact of the time relay KT and the The third time delay contact is output to the negative pole of the first DC motor M1, so that the first DC motor M1 rotates in the reverse direction. The first DC motor M1 rotates in the reverse direction to drive the first screw 131 of the combined box and the first screw hole 111 of the second combined box to unlock, so as to release the fixation of the combined box and the second combined box. Then, control the third power supply unit DC to stop outputting the power supply voltage, and then move the second packing box and the third packing box away from the packing box.

The embodiments of the present application also provide an LED display screen, the LED display screen includes a display module and a combined case as in any of the above embodiments, because the LED display screen in this embodiment includes the combined case as in any of the above embodiments, therefore The LED display screen of this embodiment at least includes the beneficial effects corresponding to the combined case of any of the above-mentioned embodiments.

The display module is installed on the combined case.

The display module may consist of one or more display components. A single display assembly includes a mask, a light board and a housing. The mask and housing are located on both sides of the light board to protect and support the light board. The light board generally includes an integrated circuit board and LED lamp beads fixed on the integrated circuit board. .

The LED display screen of this embodiment is easy to disassemble and assemble, the manual participation in the disassembly and assembly process is low, and there is no need to manually operate the locking structure of the assembled box, which reduces the work intensity of the operator and improves the disassembly and assembly efficiency of the LED display screen. .

Referring to FIG. 11 , an embodiment of the present application further provides an LED display device, including the LED display screen of any of the above-mentioned embodiments, because the LED display device of this embodiment includes the LED display screen of any of the above-mentioned embodiments, therefore The LED display device of this embodiment at least includes the beneficial effects corresponding to the LED display screen of any of the above-mentioned embodiments.

Multiple LED displays are placed in the same way and arranged in an array, including N*M LED displays, where N is the number of rows, M is the number of columns, and both N and M are positive integers, of which 11 is LED display device with N equal to 2 and M equal to 2.

The above are only optional embodiments of the present application, and are not intended to limit the present application. Various modifications and variations of this application are possible for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the scope of the claims of this application.

Claims

An assembled box includes a box body, the box body includes a first side, a second side, a third side and a fourth side, the first side and the third side are opposite to each other, the second side and The fourth side faces are opposite to each other, and it is characterized in that, it also includes:

a first screw hole provided on the first side surface;

A first detection device and a rotatable first screw are provided on the third side surface, the first screw rod is adapted to the first screw hole, and the first detection device is configured to detect the third side surface when the first detection device is detected. Conduction when the distance from the first side of the other consolidated container is less than the first preset value;

The switching power supply device is electrically connected to the first detection device, and is configured to output the power supply voltage in the first direction when the first detection device is turned on, and output the power supply voltage in the second direction when the operation command is input. said power supply voltage;

A first driving device, connected to the first screw drive, and electrically connected to the first detection device and the switching power supply device, respectively, is configured to drive the power supply voltage in the first direction when the power supply voltage is input in the first direction. The first screw rotates forward and rotates into the first screw hole of the other packing box; or when the power supply voltage in the second direction is input, the first screw is driven to rotate reversely and rotate out of the the first screw hole of the other container; and

A first power-off device, electrically connected to the first drive device, configured to disconnect the power supply acting on the first drive device when it is detected that the first screw rod is locked with the first screw hole voltage.
The consolidated container of claim 1, wherein the consolidated container further comprises:

a second screw hole provided on the second side surface;

A second detection device and a rotatable second screw are provided on the fourth side, the second screw is adapted to the second screw hole, and the second detection device is configured to detect the fourth side when the fourth side is detected. Conduction when the distance from the second side of the other consolidated container is less than the second preset value;

A second driving device, in driving connection with the second screw, is electrically connected with the second detection device and the switching power supply device respectively, and is configured to drive the power supply voltage in the first direction when the power supply voltage in the first direction is input. The second screw rotates forwardly and rotates into the second screw hole of the other packing box; or when the power supply in the second direction is input, the second screw is driven to rotate reversely and rotate out of the second screw hole the second screw hole of the other container; and

A second power-off device, electrically connected to the second driving device, is configured to disconnect the power supply acting on the second driving device when it is detected that the second screw rod is locked with the second screw hole voltage.
The combined box of claim 2, wherein the switching power supply device comprises a first relay module, a second relay module and a first switching module;

The first relay module, electrically connected to the first drive device, is configured to output the power supply voltage to the first drive device in the second direction when a first control voltage is input, and to output the power supply voltage to the first drive device in the second direction when the first control voltage is input outputting the power supply voltage to the first driving device in the first direction when the first control voltage is input;

the second relay module, electrically connected to the second drive device, is configured to output the power supply voltage to the second drive device in the second direction when the first control voltage is input, and outputting the power supply voltage to the second driving device in the first direction when the input of the first control voltage is stopped;

The first switching module is electrically connected to the first relay module and the second relay module, respectively, and is configured to output the first control voltage when the operation command is input.
The combined container of claim 3, wherein the first switch module comprises a first switch assembly and a second switch assembly;

the first switch assembly and the second switch assembly are mechanically linked;

the first switch assembly, electrically connected to the first relay module, is configured to output the first control voltage to the first relay module according to the operation instruction;

The second switch assembly, electrically connected to the second relay module, is configured to output the first control voltage to the second relay module according to the operation instruction.
The combined box of claim 3, wherein the first relay module comprises a first relay;

The first end of the coil of the first relay is connected to the first control voltage input end of the first relay module, the second end of the coil of the first relay is connected to the power ground, and the first end of the first relay is connected to the power supply ground. The movable contact is connected to the power supply voltage input end of the first relay module, the second movable contact of the first relay is connected to the power supply ground, the first static contact of the first relay and the first The third static contact of the relay is connected to the first direction output terminal of the power supply voltage of the first relay module, and the second static contact of the first relay and the fourth static contact of the first relay are both connected to the second direction output terminal of the power supply voltage of the first relay module;

Wherein, the first movable contact of the first relay is respectively matched with the first static contact of the first relay and the third static contact of the first relay, and the second movable contact of the first relay The points are matched with the second stationary contact of the first relay and the fourth stationary contact of the first relay, respectively.
The combined box of claim 3, wherein the second relay module comprises a second relay;

The first end of the coil of the second relay is connected to the first control voltage input end of the second relay module, the second end of the coil of the second relay is connected to the power ground, and the first end of the second relay is connected to the power ground. The movable contact is connected to the power supply voltage input end of the second relay module, the second movable contact of the second relay is connected to the power supply ground, the first static contact of the second relay and the second The third static contact of the relay is connected to the first direction output terminal of the power supply voltage of the second relay module, and the second static contact of the second relay and the fourth static contact of the second relay are both connected to the second direction output terminal of the power supply voltage of the second relay module;

Wherein, the first movable contact of the second relay is respectively matched with the first static contact of the second relay and the third static contact of the second relay, and the second movable contact of the second relay The points are matched with the second stationary contact of the second relay and the fourth stationary contact of the second relay, respectively.
The combined container of claim 4, wherein the first switch assembly comprises a first reset switch;

The first terminal of the first reset switch is connected to the first control voltage input terminal of the first switch component, and the second terminal of the first reset switch is connected to the first control voltage output of the first switch component end.
The consolidated container of claim 4, wherein the second switch assembly comprises a second reset switch;

The first terminal of the second reset switch is connected to the first control voltage input terminal of the second switch component, and the second terminal of the second reset switch is connected to the first control voltage output of the second switch component end.
The combined container of claim 1, wherein the first circuit breaker comprises a first circuit breaker;

The first circuit breaker, connected in series with the first driving device, is configured to detect the first operating current of the first driving device and disconnect the function when the first operating current is greater than a first preset value the supply voltage at the first drive means.
The consolidated container of claim 2, wherein the second circuit breaker comprises a second circuit breaker;

The second circuit breaker, connected in series with the second driving device, is configured to detect the second operating current of the second driving device and disconnect the function when the second operating current is greater than a second preset value the supply voltage at the second drive means.
The combined container of claim 1, wherein the first detection device comprises a first micro switch;

The pressing contact of the first micro switch is used to detect the distance between the third side surface and the first side surface of another assembled box, and the first end of the first micro switch is connected to the first driving device, so The second ends of the first micro switch are respectively connected to the first direction power supply voltage output end of the switching power supply device and the second direction power supply voltage output end of the switching power supply device.
The combined container of claim 2, wherein the second detection device comprises a second microswitch;

The pressing contact of the second micro switch is used to detect the distance between the fourth side and the second side of the other assembled box, and the first end of the second micro switch is connected to the second driving device, so The second ends of the second micro switch are respectively connected to the first-direction power supply voltage output end of the switching power supply device and the second-direction power supply voltage output end of the switching power supply device.
The consolidated container of claim 1, wherein the consolidated container further comprises:

a third screw hole provided on the second side surface;

A third detection device and a rotatable third screw are provided on the fourth side, the third screw is adapted to the third screw hole, and the third detection device is configured to detect the fourth side when the fourth side is detected. turn on when the distance from the second side of the other consolidated container is less than the third preset value; and

A third driving device, drivingly connected to the third screw rod, and electrically connected to the switching power supply device, is configured to drive the third screw rod to rotate and rotate forwardly when the power supply voltage in the first direction is input. into the third screw hole of the other packing box; or when the power supply voltage in the second direction is input, the third screw is driven to reversely rotate and rotate out of the third screw of the other packing box hole;

Wherein, the switching power supply device is also electrically connected to the first detection device and the third driving device, respectively, and is specifically configured to stop the input of the operation command and the first detection device and the third detection device When both are turned on, the power supply voltage is output to the third driving device in the first direction; when the input of the operation command is stopped and the first detection device and the third detection device are both turned on and After the third detection device is turned on for a first period of time, it stops outputting the power supply voltage to the third driving device in the first direction, and outputs the power supply voltage to the third driving device in the first direction. a first drive device; when the operation command is input and both the first detection device and the third detection device are turned on, output the power supply voltage to the third drive device in the second direction; When the operation command is input, the first detection device and the third detection device are both turned on, and the third detection device is turned on for a first period of time, stop outputting the power supply voltage in the second direction to the third driving device, and outputting the power supply voltage to the first driving device in the second direction.
The combined box of claim 13, wherein the switching power supply device comprises a third relay module, a fourth relay module and a second switching module;

The second switching module, electrically connected to the first detection device, is configured to transfer the power supply voltage to the third relay module when the first detection device is turned on; and when the input of the outputting a second control voltage when operating an instruction;

The third relay module, which is electrically connected to the second switching module, is configured to switch the power supply voltage to the first direction and output when the second control voltage is stopped to be input; When the second control voltage is applied, the power supply voltage is transferred to the second direction and output;

The fourth relay module is electrically connected to the third relay module and the third detection device respectively, and is configured to output the power supply voltage to the third detection device when the third detection device is turned on The driving device stops outputting the power supply voltage to the third driving device after delaying the first time period, and outputs the power supply voltage to the first driving device.
The combined container of claim 14, wherein the second switching module comprises a third reset switch;

The first terminal of the third reset switch is connected to the power supply voltage input terminal of the second switching module, and the second terminal of the third reset switch is connected to the power supply voltage output terminal of the second switching module.
The combined container of claim 15, wherein the third relay module comprises a third relay;

The first end of the coil of the third relay is connected to the second control voltage input end of the third relay module, and the first movable contact of the third relay is connected to the power supply voltage of the third relay module The input terminal, the first static contact of the third relay and the third static contact of the third relay are both connected to the first direction output terminal of the power supply voltage of the third relay module, and the third relay The second static contact of the third relay and the fourth static contact of the third relay are both connected to the second direction output terminal of the power supply voltage of the third relay module;

Wherein, the first movable contact of the third relay is respectively matched with the first static contact of the third relay and the third static contact of the third relay, and the second movable contact of the third relay The points are matched with the second stationary contact of the third relay and the fourth stationary contact of the third relay, respectively.
The combined container of claim 15, wherein the fourth relay module comprises a time relay;

The coil of the time relay is connected in series with the third detection circuit, and the first instantaneous contact of the time relay and the first delay contact of the time relay are both connected to the fourth relay module. The first direction input terminal of the power supply voltage, the second instantaneous contact of the time relay and the second delay contact of the time relay are both connected to the second direction input terminal of the power supply voltage of the fourth relay module, so The third momentary contact of the time relay and the third delay contact of the time relay are both connected to the power supply voltage output terminal of the first power supply device of the fourth relay module, and the fourth momentary contact of the time relay Both the point and the fourth delay contact of the time relay are connected to the power supply voltage output terminal of the third power supply device of the fourth relay module.
The combined container of claim 1, wherein the first driving device comprises a first DC motor;

The output shaft of the first DC motor is connected to the first screw drive, the positive pole of the first DC motor is connected to the first direction input end of the power supply voltage of the first driving device, and the first direction of the first DC motor is connected. The negative pole is connected to the second direction input terminal of the power supply voltage of the first driving device.
An LED display screen, characterized in that it comprises a display module and a combined case as claimed in any one of claims 1 to 18;

The display module is installed on the combined box.
An LED display device, characterized in that it comprises a plurality of LED display screens as claimed in claim 19;

A plurality of the LED display screens are placed in the same manner and arranged in an array.