A display box and its closing control method

Abstract

The present application provides a display box and a closing method thereof, comprising a main body, a plurality of covering members, and a locking mechanism. By arranging a locking mechanism between the plurality of covering members and the main body, when the plurality of covering members are covered on the main body, the locking mechanism can be used to connect the plurality of covering members to the main body to cover the main body, or to make the plurality of covering members simultaneously connected to the main body move away from the main body at the same time to unfold the main body and display the items inside the main body. This solves the technical problems in the prior art that the plurality of covering members of the display box cannot be simultaneously unfolded to quickly and efficiently display the items inside the display box main body, and the plurality of covering members cannot be automatically locked on the display box main body when the display box is closed. The present application provides a display box and a closing method thereof, comprising a main body, a plurality of covering members ...

Description

Technical Field

[0001] The present invention relates to the technical field of display boxes, and in particular to a display box. Background Art

[0002] Display boxes are widely used as a way to package items. In the prior art, the covers of display boxes are mostly unfolded one by one, and it is impossible to unfold all the covers at the same time to quickly display the items inside the display box body. Furthermore, when the covers are covered on the display box body and the display box body is closed, it is impossible to automatically lock multiple covers on the body at the same time. As a whole, it is not convenient to use and the display effect needs to be improved. Modifications are urgently needed. Summary of the Invention

[0003] In order to solve the technical problems in the prior art that multiple covering parts of a display box cannot be simultaneously unfolded to quickly and efficiently display the items inside the display box body, and the multiple covering parts cannot be automatically locked on the display box body when the display box is closed, the present application proposes a display box and a closing control method thereof.

[0004] The present application adopts the following scheme: a display box, comprising a main body, a plurality of covering parts hinged on the peripheral side of the main body, and a locking mechanism provided on the main body, wherein the covering parts can be flipped toward or away from the main body to cover or unfold the main body. When the plurality of covering parts are covered on the main body, the locking mechanism can be used to simultaneously restrict the plurality of covering parts from flipping toward away from the main body and entering a locked state. The locking mechanism can also be used to simultaneously release the restriction, so that the plurality of covering parts move simultaneously toward away from the main body and enter an unlocked state.

[0005] Preferably, the locking mechanism includes a lock disk provided on the main body, a clamping assembly provided between the lock disk and the cover member, and a driving member rotatably provided on the clamping assembly. When the cover member is simultaneously flipped toward the main body and covered on the main body, the cover member is clamped to the lock disk through the clamping assembly and enters a locked state. When the driving member rotates relative to the lock disk and drives the clamping assembly to rotate, the clamping assembly and the cover member are released from the clamping state, so that the cover member is flipped away from the main body and enters an unlocked state.

[0006] Preferably, the clamping assembly includes a rotating plate provided on the lock disk and rotationally connected to the driving member, a rotating hook rotationally connected to the lock disk, and a fixed hook provided on the covering member at a position corresponding to the rotating hook. When the covering member is covered on the main body, the rotating hook is engaged with the hook portion of the fixed hook to restrict the covering member from flipping away from the main body and entering a locked state. When the driving member drives the rotating plate to rotate, the rotating plate drives the rotating hook to rotate so that its hook portion is away from the hook portion of the fixed hook to release the restriction on the covering member flipping away from the main body and enter an unlocked state.

[0007] Preferably, a linkage column is provided on the rotating plate, which is in contact with the rotating hook. When the driving member drives the rotating plate to rotate, the linkage column drives the rotating hook to rotate so that its hook part is away from the hook part of the fixed hook, so that the covering member moves away from the main body and enters the unlocked state.

[0008] Preferably, a rotating shaft is provided on the lock disk at a position corresponding to the rotating hook, and the rotating hook is matched and rotated on the rotating shaft. When the covering member is covered on the main body, the hook part on one end of the rotating hook is engaged with the hook part of the fixed hook, and the other end is against the linkage column and enters a locked state.

[0009] Preferably, a directional assembly for limiting the rotation direction of the linkage column is provided between the linkage column and the lock disk, and the directional assembly includes a limiting member provided on the lock disk, and a limiting column provided on the linkage column and abutting against the limiting member.

[0010] Preferably, the rotating hook is provided with a self-locking mechanism in the direction close to the fixed hook portion. When the rotating hook portion rotates away from the fixed hook portion, the rotating hook squeezes the self-locking mechanism close to one end of the fixed hook to cause it to produce elastic deformation.

[0011] Preferably, the self-locking mechanism includes a receiving groove provided on the lock disk at a position corresponding to one end of the hook portion of the rotating hook, and an elastic member matchedly provided in the receiving groove and in contact with the rotating hook.

[0012] Preferably, the main body includes a base, a plurality of side panels provided on the base, a receiving cavity formed by the plurality of side panels and the base, and a door panel rotatably provided on the side panels for closing the receiving cavity;

[0013] The subject also includes:

[0014] a display module, which is disposed in the accommodating cavity and connected to the central processing unit, and is used to display the items in the accommodating cavity;

[0015] a first angle sensor, which is disposed between the cover and the main body and connected to the central processing unit, and is used to present an angle change signal A when the cover moves relative to the main body;

[0016] a flip module, which is disposed between the door panel and the side panel and is connected to the central processing unit, and is used to drive the door panel to rotate away from the side panel;

[0017] a second angle sensor, which is disposed between the door panel and the side panel and is connected to the central processing unit, and is used to present an angle change signal B when the door panel rotates relative to the side panel;

[0018] a weight sensor disposed in the accommodating cavity and connected to the central processing unit for presenting a weight change signal in the accommodating cavity;

[0019] The automatic closing module is arranged in the base and connected to the central processing unit, and is used to drive the covering member to move toward the main body to close the main body.

[0020] A method for controlling the opening and closing of a display box, used for the display box as described above, comprises the following steps:

[0021] Step S1. The user rotates the driving member to flip the cover away from the main body. The first angle sensor between the cover and the main body transmits an angle change signal A to the central processing unit during the flipping process.

[0022] Step S2. After receiving the angle change signal A, the CPU transmits a command to the flip module located on the main body to rotate the door panel relative to the side panel. The flip module executes the command, and a second angle sensor between the door panel and the side panel transmits an angle change signal B during the flipping process to the CPU.

[0023] Step S3. After receiving the angle change signal B, the central processing unit transmits a start command to the display module located on the main body. The display module executes the command and displays the items in the main body.

[0024] Step S4. After receiving the weight change signal presented by the gravity sensor located on the main body, the central processing unit transmits a closing signal to the automatic closing module located between the main body and the cover. The automatic closing module executes the command, drives the cover to flip toward the main body and connect to the main body.

[0025] Compared with the prior art, this application has the following beneficial effects:

[0026] The present application provides a display box, comprising a main body, a plurality of covering members, and a locking mechanism. By arranging a locking mechanism between the plurality of covering members and the main body, when the plurality of covering members are covered on the main body, the locking mechanism can be used to connect the plurality of covering members to the main body to cover the main body, or to make the plurality of covering members simultaneously connected to the main body move away from the main body at the same time, to unfold the main body and display the items inside the main body. This solves the technical problems in the prior art that the plurality of covering members of the display box cannot be simultaneously unfolded to quickly and efficiently display the items inside the display box main body, and the plurality of covering members cannot be automatically locked on the display box main body when the display box is closed. The present application provides a display box, comprising a main body, a plurality of covering members, and a locking mechanism.

[0027] The present application also provides a method for controlling the closing of a display box, wherein multiple covering members of the display box can be simultaneously unfolded to quickly and efficiently display items inside the display box body, and when the display box is closed, multiple covering members can be automatically locked on the display box body at the same time. This method has the advantages of low implementation cost and easy promotion and implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments.

[0029] Figure 1 This is a schematic diagram of the structure of a display box cover assembly in the unlocked state;

[0030] Figure 2 This is a top view of a display box cover assembly in the unlocked state;

[0031] Figure 3 This is a top view of a display box cover assembly in the present application in an unlocked state with the locking mechanism opened;

[0032] Figure 4 This application Figure 3 A magnified view of the part at point B in the middle;

[0033] Figure 5 This is an exploded schematic diagram of a top view of a display box cover assembly in an unlocked state according to the present application;

[0034] Figure 6 This application Figure 5 A partial enlarged view of point A in the middle;

[0035] Figure 7 It is a structural diagram of the locking mechanism of the present application;

[0036] Figure 8 This is a flow chart of a display box closing control method of the present application;

[0037] Figure 9This is a schematic diagram of the signal connection of a display box of this application;

[0038] Figure 10 This is a schematic diagram showing the module signal connections in this application. DETAILED DESCRIPTION

[0039] like Figure 1-8 As shown, a display box is characterized in that it includes a main body 1, a plurality of covering members 2 hinged on the side of the main body 1, and a locking mechanism 3 provided on the main body 1, the covering members 2 can be flipped toward or away from the main body 1 to cover or unfold the main body 1, when the plurality of covering members 2 are covered on the main body 1, the locking mechanism 3 can be used to simultaneously restrict the plurality of covering members 2 from flipping toward away from the main body 1 and entering a locked state, and the locking mechanism 3 can also be used to simultaneously release the restriction so that the plurality of covering members 2 move simultaneously toward away from the main body 1 and enter an unlocked state.

[0040] The present application provides a display box, comprising a main body, a plurality of covering members, and a locking mechanism. By arranging a locking mechanism between the plurality of covering members and the main body, when the plurality of covering members are covered on the main body, the locking mechanism can be used to connect the plurality of covering members to the main body to cover the main body, or to make the plurality of covering members simultaneously connected to the main body move away from the main body at the same time, to unfold the main body and display the items inside the main body. This solves the technical problems in the prior art that the plurality of covering members of the display box cannot be simultaneously unfolded to quickly and efficiently display the items inside the display box main body, and the plurality of covering members cannot be automatically locked on the display box main body when the display box is closed. The present application provides a display box, comprising a main body, a plurality of covering members, and a locking mechanism.

[0041] Preferably, the locking mechanism 3 includes a lock disk 30 provided on the main body 1, a clamping assembly 31 provided between the lock disk 30 and the cover 2, and a driving member 32 rotatably provided on the clamping assembly 31. When the cover 2 is simultaneously flipped toward the direction close to the main body 1 and covered on the main body 1, the cover 2 is clamped to the lock disk 30 through the clamping assembly 31 and enters a locked state. When the driving member 32 rotates relative to the lock disk 30 and drives the clamping assembly 31 to rotate, the clamping assembly 31 is disengaged from the cover 2, so that the cover 2 is flipped toward the direction away from the main body 1 and enters an unlocked state.

[0042] During the actual implementation process, the driving member is key-shaped, and a lock hole is provided on the snap-fit ​​assembly. The driving member can be matched and extended into the lock hole and rotate with the lock hole. When the driving member rotates, the driving member can drive the snap-fit ​​assembly to rotate, so that the cover moves away from the main body to open the display box.

[0043] Preferably, the locking assembly 31 includes a rotating plate 310 provided on the lock disk 30 and rotatably connected to the driving member 32, a rotating hook 311 rotatably connected to the lock disk 30, and a fixed hook 312 provided on the covering member 2 at a corresponding position of the rotating hook 311. When the covering member 2 is covered on the main body 1, the rotating hook 311 and the fixed hook 312 are engaged with each other to limit the covering member 2 from flipping away from the main body 1 and entering a locked state. When the driving member 32 drives the rotating plate 310 to rotate, the rotating plate 310 drives the rotating hook 311 to rotate in a direction so that its hook is away from the hook of the fixed hook 312, releasing the restriction on the covering member 2 flipping away from the main body 1 and entering an unlocked state.

[0044] In actual implementation, when the cover piece flips toward the main body, the fixed hook on the cover piece can move toward the rotating hook on the lock disk, and the hooks of the two parts cooperate with each other to prevent the cover piece from flipping away from the main body, so that multiple cover pieces can be snapped and connected to the main body at the same time to close the main body;

[0045] When the driving member rotates, the rotating hook portion can be driven to move away from the fixed hook, so that the two hook portions cannot collide with each other, and the cover member is flipped away from the main body to open the display box.

[0046] Preferably, a linkage column 313 is provided on the rotating plate 310, which is in contact with the rotating hook 311. When the driving member 32 drives the rotating plate 310 to rotate, the linkage column 313 drives the rotating hook 311 to rotate in the direction of moving its hook away from the hook of the fixed hook 312, so that the covering member 2 moves away from the main body 1 and enters the unlocked state.

[0047] Preferably, a rotating shaft 314 is provided on the lock disk 30 at a position corresponding to the rotating hook 311, and the rotating hook 311 is matched and rotated on the rotating shaft 314. When the covering member 2 is covered on the main body 1, the hook on one end of the rotating hook 311 is engaged with the hook of the fixed hook 312, and the other end is against the linkage column 313 and enters a locked state.

[0048] Preferably, a directional assembly 33 for limiting the rotation direction of the linkage column 313 is provided between the linkage column 313 and the lock disk 30, and the directional assembly 33 includes a limiting member 330 provided on the lock disk 30, and a limiting column 331 provided on the linkage column 313 and abutting against the limiting member 330.

[0049] During actual implementation, the directional component can limit the rotation direction of the locking component, so that when the driving member rotates, it can only drive the rotating hook to rotate in a fixed direction to move away from the fixed hook, so that the covering member moves away from the main body.

[0050] Preferably, the rotating hook 311 is provided with a self-locking mechanism 34 near the hook portion of the fixed hook 312. When the hook portion of the rotating hook 311 rotates away from the hook portion of the fixed hook 312, the rotating hook 311 squeezes the self-locking mechanism 34 near one end of the fixed hook 312, causing it to produce elastic deformation.

[0051] Preferably, the self-locking mechanism 34 includes a receiving groove 340 provided on the lock disk 30 at a position corresponding to one end of the hook portion of the rotating hook 311, and an elastic member 341 matchedly provided in the receiving groove 340 and in contact with the rotating hook 311.

[0052] During the actual implementation process, the accommodating groove is used to accommodate the self-locking elastic part. When the cover part is flipped toward the main body, the fixed hook part on the cover part can squeeze the rotating hook part, and the rotating hook part can squeeze the elastic part, so that the rotating hook makes way; when the fixed hook part and the rotating hook part are engaged, the elastic part returns to its original length and provides elastic force, so that the fixed hook and the rotating hook are stably engaged, and the cover part is self-locked on the main body.

[0053] Preferably, the main body 1 includes a base 10, a plurality of side panels 11 provided on the base 10, a receiving cavity 13 formed by the plurality of side panels 11 and the base 10, and a door panel 12 rotatably provided on the side panels 11 for closing the receiving cavity 13;

[0054] The main body 1 also includes:

[0055] a display module 46 disposed in the accommodating cavity 13 and connected to the central processing unit 40 for displaying items in the accommodating cavity 13;

[0056] A first angle sensor 41 is provided between the cover 2 and the main body 1 and is connected to the central processing unit 40 for providing an angle change signal A when the cover 2 moves relative to the main body 1;

[0057] In actual implementation, the first angle sensor is an infrared angle sensor. When the cover is flipped toward the main body, the first angle sensor can monitor the height of the sensing point relative to the ground, convert it into the angle of the cover relative to the main body, and collect it into an angle change signal, which is presented to the central processing unit;

[0058] a flip module 42 , which is disposed between the door panel 12 and the side panel 11 and is connected to the central processing unit 40 , and is used to drive the door panel 12 to rotate away from the side panel 11 ;

[0059] During the actual implementation process, the flipping module is a connecting rod flipping mechanism arranged in the accommodating cavity, one end of which is arranged in the accommodating cavity, and the other end is connected to the door panel and is connected to the central processing unit signal. When the central processing unit receives the angle change signal presented by the first angle sensor, the connecting rod flipping mechanism drives the door panel to flip relative to the side panel.

[0060] A second angle sensor 43 is provided between the door panel 12 and the side panel 11 and is connected to the central processing unit 40 for providing an angle change signal B when the door panel 12 rotates relative to the side panel 11;

[0061] In actual implementation, the second angle sensor senses the distance between the door panel and the side panel, converts it into an angle change signal B between the door panel and the side panel, and presents it to the central processing unit;

[0062] a weight sensor 44 disposed in the accommodating chamber 13 and connected to the central processing unit 40 for transmitting a weight change signal in the accommodating chamber 13;

[0063] The automatic closing module 45 is disposed in the base 10 and connected to the central processing unit 40 , and is used to drive the cover 2 to move toward the main body 1 to close the main body 1 .

[0064] During the actual implementation process, the automatic closing membrane block is a traction mechanism arranged in the base. The traction mechanism includes a traction motor arranged in the base, and a traction flexible member with one end arranged on the covering member and the other end arranged on the output end of the traction motor. The traction mechanism is connected to the central processing unit. When the central processing unit issues an instruction to the traction mechanism, the traction motor can simultaneously pull multiple covering members to move toward the direction close to the main body; when multiple covering members are simultaneously covered on the main body, and the covering members can no longer continue to move toward the direction of approach, the central processing unit issues a stop command, and the user can use the driving member to make multiple covering members move simultaneously away from the main body for display.

[0065] Preferably, the display module 46 includes:

[0066] A rotation module 460 is provided at the bottom of the accommodating chamber and is used to drive the rotation of the items in the accommodating chamber to display the items in the accommodating chamber. The gravity sensor is located at the bottom of the turntable. In actual implementation, the rotation module is a turntable connected to the central processing unit signal, and the items to be displayed are placed on the turntable;

[0067] The audio and video module 461 includes a liquid crystal display and a speaker connected to the central processing unit signal. In actual implementation, when receiving the activation signal from the central processing unit, the liquid crystal display can play a preset video or picture, and the speaker can play a preset song.

[0068] The lighting module 462 is arranged in the accommodating cavity and is located on the side panel. In summary of the actual implementation process, the lighting module is an LED light strip. When it receives the start signal from the central processor, the LED light strip illuminates according to the preset frequency, light color, frequency and other parameters.

[0069] Preferably, a method for controlling the opening and closing of a display box comprises the following steps:

[0070] Step S1. The user rotates the driving member to flip the cover away from the main body. The first angle sensor between the cover and the main body transmits an angle change signal A to the central processing unit during the flipping process.

[0071] Step S2. After receiving the angle change signal A, the CPU transmits a command to the flip module located on the main body to rotate the door panel relative to the side panel. The flip module executes the command, and a second angle sensor between the door panel and the side panel transmits an angle change signal B during the flipping process to the CPU.

[0072] Step S3. After receiving the angle change signal B, the central processing unit transmits a start command to the display module located on the main body. The display module executes the command and displays the items in the main body.

[0073] Step S4. After receiving the weight change signal presented by the gravity sensor located on the main body, the central processing unit transmits a closing signal to the automatic closing module located between the main body and the cover. The automatic closing module executes the command, drives the cover to flip toward the main body and connect to the main body.

[0074] The present application provides a display box, comprising a main body, a plurality of covering members, and a locking mechanism. By arranging a locking mechanism between the plurality of covering members and the main body, when the plurality of covering members are covered on the main body, the locking mechanism can be used to connect the plurality of covering members to the main body to cover the main body, or to make the plurality of covering members simultaneously connected to the main body move away from the main body at the same time, to unfold the main body and display the items inside the main body. This solves the technical problems in the prior art that the plurality of covering members of the display box cannot be simultaneously unfolded to quickly and efficiently display the items inside the display box main body, and the plurality of covering members cannot be automatically locked on the display box main body when the display box is closed. The present application provides a display box, comprising a main body, a plurality of covering members, and a locking mechanism.

[0075] The present application also provides a method for controlling the closing of a display box, wherein multiple covering members of the display box can be simultaneously unfolded to quickly and efficiently display items inside the display box body, and when the display box is closed, multiple covering members can be automatically locked on the display box body at the same time. This method has the advantages of low implementation cost and easy promotion and implementation.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A display box, characterized in that: The invention comprises a main body (1), a plurality of cover members (2) hingedly arranged on the peripheral side of the main body (1), and a locking mechanism (3) arranged on the main body (1), wherein the cover members (2) can be turned toward or away from the main body (1) to cover or unfold the main body (1); when the plurality of cover members (2) are covered on the main body (1), the locking mechanism (3) can be used to simultaneously restrict the plurality of cover members (2) from turning toward and away from the main body (1) to enter a locked state; and the locking mechanism (3) can also be used to simultaneously release the restriction so that the plurality of cover members (2) can simultaneously move toward and away from the main body (1) to enter an unlocked state; The main body (1) comprises a base (10), a plurality of side panels (11) arranged on the base (10), a receiving cavity (13) formed by the plurality of side panels (11) and the base (10), and a door panel (12) rotatably arranged on the side panels (11) for closing the receiving cavity (13); The main body (1) further includes: a display module (46), which is disposed in the accommodating cavity (13) and connected to the central processing unit (40), and is used to display items in the accommodating cavity (13); a first angle sensor (41), which is disposed between the cover member (2) and the main body (1) and is connected to the central processing unit (40), and is used to present an angle change signal A when the cover member (2) moves relative to the main body (1); a turnover module (42), which is disposed between the door panel (12) and the side panel (11) and is connected to the central processing unit (40), and is used to drive the door panel (12) to rotate in a direction away from the side panel (11); a second angle sensor (43), which is disposed between the door panel (12) and the side panel (11) and is connected to the central processing unit (40), and is used to present an angle change signal B when the door panel (12) rotates relative to the side panel (11); a weight sensor (44), which is disposed in the accommodating cavity (13) and connected to the central processing unit (40), and is used to present a weight change signal in the accommodating cavity (13); An automatic closing module (45) is disposed in the base (10) and connected to the central processing unit (40), and is used to drive the cover member (2) to move toward the main body (1) to close the main body (1).

2. A display box according to claim 1, characterized in that: The locking mechanism (3) includes a lock disk (30) provided on the main body (1), a clamping assembly (31) provided between the lock disk (30) and the cover member (2), and a driving member (32) rotatably provided on the clamping assembly (31). When the cover member (2) is simultaneously flipped toward the main body (1) and covers the main body (1), the cover member (2) is clamped to the lock disk (30) through the clamping assembly (31) and enters a locked state. When the driving member (32) rotates relative to the lock disk (30) and drives the clamping assembly (31) to rotate, the clamping assembly (31) and the cover member (2) are released from the clamping state, so that the cover member (2) is flipped toward the direction away from the main body (1) and enters an unlocked state.

3. A display box according to claim 2, characterized in that: The clamping assembly (31) includes a rotating plate (310) provided on the lock disk (30) and rotatably connected to the driving member (32), a rotating hook (311) rotatably connected to the lock disk (30), and a fixed hook (312) provided on the cover member (2) at a position corresponding to the rotating hook (311). When the cover member (2) is covered on the main body (1), the hook portion of the rotating hook (311) and the fixed hook (312) are engaged to restrict the cover member (2) from turning in a direction away from the main body (1) and entering a locked state. When the driving member (32) drives the rotating plate (310) to rotate, the rotating plate (310) drives the rotating hook (311) to rotate in a direction in which its hook portion is away from the hook portion of the fixed hook (312), thereby releasing the restriction on the cover member (2) turning in a direction away from the main body (1) and entering an unlocked state.

4. A display box according to claim 3, characterized in that: The rotating plate (310) is provided with a linkage column (313) that abuts against the rotating hook (311). When the driving member (32) drives the rotating plate (310) to rotate, the linkage column (313) drives the rotating hook (311) to rotate in a direction in which its hook portion is away from the hook portion of the fixed hook (312), so that the covering member (2) moves away from the main body (1) and enters an unlocked state.

5. A display box according to claim 4, characterized in that: A rotating shaft (314) is provided on the lock disk (30) at a position corresponding to the rotating hook (311), and the rotating hook (311) is rotatably arranged on the rotating shaft (314). When the covering member (2) is covered on the main body (1), the hook portion on one end of the rotating hook (311) is engaged with the hook portion of the fixed hook (312), and the other end abuts against the linkage column (313) and enters a locked state.

6. A display box according to claim 4, characterized in that: A directional assembly (33) for limiting the rotation direction of the linkage column (313) is provided between the linkage column (313) and the lock disk (30). The directional assembly (33) comprises a limiting member (330) provided on the lock disk (30), and a limiting column (331) provided on the linkage column (313) and abutting against the limiting member (330).

7. A display box according to claim 3, characterized in that: A self-locking mechanism (34) is provided on the hook portion of the rotating hook (311) close to the fixed hook (312). When the hook portion of the rotating hook (311) rotates in a direction away from the hook portion of the fixed hook (312), the end of the rotating hook (311) close to the fixed hook (312) squeezes the self-locking mechanism (34), causing it to produce elastic deformation.

8. A display box according to claim 7, characterized in that: The self-locking mechanism (34) comprises a receiving groove (340) provided on the lock disk (30) at a position corresponding to one end of the hook portion of the rotating hook (311), and an elastic member (341) matchedly provided in the receiving groove (340) and in contact with the rotating hook (311).

9. A method for controlling the opening and closing of a display box, used for the display box according to any one of claims 2 to 8, characterized in that: The following steps are involved: Step S1. The user rotates the driving member to flip the cover away from the main body. The first angle sensor between the cover and the main body transmits an angle change signal A to the central processor during the flipping process. Step S2. After receiving the angle change signal A, the CPU transmits a command to the flip module located on the main body to rotate the door panel relative to the side panel. The flip module executes the command, and a second angle sensor between the door panel and the side panel transmits an angle change signal B during the flipping process to the CPU. Step S3. After receiving the angle change signal B, the central processing unit transmits a start command to the display module located on the main body. The display module executes the command and displays the items in the main body. Step S4. After receiving the weight change signal presented by the weight sensor located on the main body, the central processing unit transmits a closing signal to the automatic closing module located between the main body and the cover. The automatic closing module executes the command, drives the cover to flip toward the main body and connect to the main body.

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