CN216671066U - LED box and LED display screen - Google Patents

Abstract

The utility model provides an LED box body and an LED display screen, which comprise: the first locking structure comprises a rotating shaft and a rotating seat, one of the rotating shaft and the rotating seat is arranged on one side of the rear cover, the other one of the rotating shaft and the rotating seat is arranged on one side of the main box body, the rotating seat is provided with a containing groove matched with the rotating shaft, the rotating shaft can be arranged in the containing groove, and the rotating shaft can be drawn out of the containing groove when the included angle between the rear cover and the panel of the main box body is within a preset angle range; the second locking structure comprises a rotating component and a blocking component, one of the rotating component and the blocking component is arranged on the rear cover, and the other one of the rotating component and the blocking component is arranged on the main box body; when the rear cover is covered with the main box body, the included angle between the rear cover and the panel of the main box body is not in the preset angle range. Through setting up second closure structure and first closure structure for can enough rotate between main tank body and the back lid, also can separate, be convenient for dismantle the maintenance to the LED box.

Description

LED box and LED display screen

Technical Field

The utility model belongs to the technical field of LED boxes, and particularly relates to an LED box and an LED display screen.

Background

Large LED displays are typically made up of an LED housing that generally includes a main housing, a rear cover, and a display assembly mounted to the main housing. The rear cover is covered on one side of the main box body far away from the display surface, in order to realize daily maintenance of the LED box body, a connection mode can be generally disassembled between the rear cover and the main box body, in the related art, a more common assembly mode between the rear cover and the main box body is screw assembly or rotation assembly, however, the mode adopting the screw assembly is not convenient for disassembly, the maintenance efficiency is influenced, the rear cover is not completely separated from the main box body after the rotation assembly mode is adopted, the maintenance of the LED box body is not convenient, and the normal use of the LED box body is influenced by the two assembly modes.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the normal use of an LED box body is influenced by the assembly mode between a rear cover and a main box body in the LED box body in the related technology.

In order to solve the above technical problem, a first aspect of the present invention provides an LED box, including: the device comprises a main box body, a rear cover, a first locking structure and a second locking structure; the first locking structure comprises a rotating shaft and a rotating seat, one of the rotating shaft and the rotating seat is arranged on one side of the rear cover, the other one of the rotating shaft and the rotating seat is arranged on one side of the main box body, the rotating seat is provided with a containing groove matched with the rotating shaft, the rotating shaft can be arranged in the containing groove, and the rotating shaft can be pulled away from the containing groove when the included angle between the rear cover and the panel of the main box body is within a preset angle range; the second locking structure comprises a rotating component and a blocking component, one of the rotating component and the blocking component is arranged on the rear cover, and the other one of the rotating component and the blocking component is arranged on the main box body; when the rotating shaft is positioned in the accommodating groove and the rotating assembly is embedded into the blocking assembly, the rear cover is covered with the main box body, and at the moment, the included angle between the rear cover and the panel of the main box body is not within the preset angle range.

Preferably, the rotating base includes a base and a first locating part, the accommodating groove is formed in the base, the first locating part is arranged on one side of the accommodating groove, a first gap is formed between the first locating part and the base, the rotating shaft passes through the first gap, when the included angle between the rear cover and the panel of the main box body is within a predetermined angle range, the rotating shaft can pass through the first gap and then be pulled out from the accommodating groove, and when the included angle between the rear cover and the panel of the main box body is not within the predetermined angle range, the first locating part blocks the rotating shaft and then is pulled out from the accommodating groove.

Preferably, the first limiting part comprises a first connecting part and a limiting part; one end of the first connecting portion is connected with the base, the other end of the first connecting portion is connected with the limiting portion, and the first gap is formed between the limiting portion and the base.

Preferably, the first locking structure further includes a second limiting member, two ends of the rotating shaft are respectively provided with a second limiting member, and when the rotating shaft is located in the accommodating groove, the rotating base is located between the two second limiting members.

Preferably, when the second limiting member abuts against the rotating seat near the side edge of the rotating seat, an included angle between the rear cover and the panel of the main box body is a first included angle, and the first included angle is within the predetermined angle range; when the side edge of the second limiting part close to the rotating seat is not abutted against the rotating seat, the rotating shaft is limited in the accommodating groove.

Preferably, the second locating part is close to the side of the rotating seat and is provided with a notch, and when the included angle between the rear cover and the panel of the main box body is a first included angle, the rotating seat extends into the notch, and the rotating seat abuts against the side of the notch.

Preferably, the rotating assembly comprises a rotating piece and a locking piece which are connected, and the blocking assembly comprises a fixed seat which is provided with a second gap matched with the locking piece; when the second locking structure is locked, the locking piece is positioned in the second gap; when the second locking structure is unlocked, the locking piece is not in the second gap.

Preferably, the blocking assembly further comprises an elastic member, a fixed end of the elastic member is fixed on the inner wall of the fixed seat, a free end of the elastic member extends into the second gap, and the fixed seat is provided with a first abdicating hole; the locking piece rotates from the fixed end of the elastic piece to the free end of the elastic piece, and when the locking piece abuts against the free end of the elastic piece and rotates for a second angle, the second locking structure is locked; when the second locking structure is unlocked, the free end of the elastic piece can extend into the first abdicating hole.

Preferably, the LED box further comprises an interface assembly, the interface assembly comprises a connecting seat and an interface piece, the connecting seat is fixed on the main box, the interface piece is fixed on the connecting seat, and the rear cover is provided with a second abdicating hole matched with the interface piece; when the rear cover and the main box body cover, the interface piece is positioned in the second abdicating hole, and the connecting seat is connected with the rear cover.

The utility model provides an LED display screen, which comprises at least one LED box body, a control assembly and a display assembly, wherein the control assembly is fixed on one side of the main box body close to the rear cover, the display assembly is fixed on one side of the main box body far away from the rear cover, and the control assembly is electrically connected to the display assembly.

Compared with the prior art, the LED box body and the LED display screen have the advantages that: the LED box is equipped with first closure structure and second closure structure, and when the rotating assembly was embedded into to blockking the subassembly, the locking of second closure structure, back lid closed at the main tank body and formed and hold the chamber, and the contained angle of the panel of back lid and main tank body was not at predetermined angle within range this moment, and the axis of rotation is set in the storage tank for the main tank body can not take place to shift with the back lid when the LED box is using, guarantees the normal use of LED box. When the rotating assembly is separated from the blocking assembly, the second locking structure is loosened, and the rotating shaft can rotate on the rotating seat at the moment, so that the rotating connection between the rear cover and the main box body is realized; after the rear cover rotates for the predetermined angle, the included angle between the rear cover and the panel of the main box body is within the predetermined angle range, the rotating shaft can be pulled away from the accommodating groove, the rear cover is separated from the main box body, and the LED box body is detached. Through setting up second closure structure and first closure structure for can enough rotate between main tank body and the back lid, also can separate back lid and main tank body, be convenient for dismantle the LED box and overhaul, thereby realize the normal use of LED box.

Drawings

FIG. 1 is a schematic diagram of an overall structure of an LED box according to an embodiment of the present invention;

FIG. 2 is an exploded view of an LED housing according to an embodiment of the present invention;

FIG. 3 is an enlarged view of detail A in FIG. 2;

FIG. 4 is an enlarged view of detail B of FIG. 2;

FIG. 5 is a schematic diagram of a first locking structure of an LED box according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a blocking assembly of an LED housing in an embodiment of the utility model.

In the drawings, each reference numeral indicates: 1. a main box body; 2. a rear cover; 3. a first locking structure; 31. a rotating shaft; 32. a rotating seat; 321. a base; 3211. a first support section; 3212. a second support portion; 3213. a fixed part; 322. a containing groove; 33. a first limit piece; 331. a first connection portion; 332. a limiting part; 34. a second limiting member; 4. a second locking structure; 41. a rotating assembly; 411. a rotating member; 412. a locking member; 42. a blocking component; 421. a fixed seat; 4211. a blocking plate; 4212. a side plate; 423. an elastic member; 424. a first abdicating hole; 5. an interface component; 51. an interface member; 52. a connecting seat.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Example 1:

in this embodiment, referring to fig. 1, 2 and 5, an LED box includes: the device comprises a main box body 1, a rear cover 2, a first locking structure 3 and a second locking structure 4; the first locking structure 3 comprises a rotating shaft 31 and a rotating seat 32, one of the rotating shaft 31 and the rotating seat 32 is arranged on one side of the rear cover 2, the other one is arranged on one side of the main box body 1, the rotating seat 32 is provided with a containing groove 322 matched with the rotating shaft 31, the rotating shaft 31 can be placed in the containing groove 322, and the rotating shaft 31 can be pulled away from the containing groove 322 when the included angle between the rear cover 2 and the panel of the main box body 1 is within a preset angle range; the second locking structure 4 comprises a rotating component 41 and a blocking component 42, one of the rotating component 41 and the blocking component 42 is disposed on the rear cover 2, the other is disposed on the main box 1, the rotating shaft 31 is located in the containing groove 322, and when the rotating component 41 is embedded into the blocking component 42, the rear cover 2 is covered with the main box 1, and at this time, an included angle between the rear cover 2 and a panel of the main box 1 is not within a predetermined angle range.

Wherein, the number of the first locking structure 3 and the two second locking structures 4 can be one, two or more; the rotating shaft 31 is arranged at one side of the rear cover 2, and the rotating seat 32 is arranged at one side of the main box body 1, or the rotating shaft 31 is arranged at one side of the main box body 1, and the rotating seat 32 is arranged at one side of the rear cover 2; the rotating assembly 41 is provided on the rear cover 2 and the blocking assembly 42 is provided on the main case 1, or the rotating assembly 41 is provided on the main case 1 and the blocking assembly 42 is provided on the rear cover.

Referring to fig. 1, 2 and 5, in some embodiments, the LED box is provided with two first locking structures 3 and two second locking structures 4; the rotating shaft 31 is arranged at one side of the rear cover 2, and the rotating seat 32 is arranged at one side of the main box body 1; the rotating assembly 41 is provided on the rear cover 2, and the blocking assembly 42 is provided on the main case 1. When the rotating shaft 31 is located in the accommodating groove 322 and the rotating component 41 is embedded into the blocking component 42, the rear cover 2 covers and combines with the main box body 1 to form an accommodating cavity, the first locking structure 3 and the second locking structure 4 are locked, so that the main box body 1 and the rear cover 2 are tightly connected, the main box body 1 and the rear cover 2 cannot shift when the LED box body is used, and the normal use of the LED box body is ensured. When the rotating component 41 is disengaged from the blocking component 42, the second locking structure 4 is released, and the rotating shaft 31 can rotate on the rotating seat 32, so that the rotating connection between the rear cover 2 and the main box 1 is realized; the included angle of the panel of the rear cover 2 and the main box body 1 is within the range of the preset angle by rotating the rear cover 2, the rotating shaft 31 can be drawn out from the accommodating groove 322 at the moment, and the first locking structure 3 is loosened, so that the rear cover 2 is separated from the main box body 1, and the LED box body is detached. Through setting up second closure structure 4 and first closure structure 3 for can enough rotate between main tank 1 and the back lid 2, also can separate back lid 2 and main tank 1, be convenient for dismantle the maintenance to the LED box, thereby realize the normal use of LED box.

Referring to fig. 2, 4 and 5, the rotating base 32 includes a base 321 and a first limiting member 33, the base 321 is provided with an accommodating groove 322, the first limiting member 33 is disposed on one side of the base 321 where the accommodating groove 322 is disposed, a first gap for accommodating the rotating shaft 31 is formed between the first limiting member 33 and the base 321, when an included angle between the rear cover 2 and the panel of the main box 1 is within a predetermined angle range, the rotating shaft 31 can be pulled out from the accommodating groove 321 through the first gap, and when the included angle between the rear cover 2 and the panel of the main box 1 is not within the predetermined angle range, the first limiting member 33 blocks the rotating shaft 31 from being pulled out from the accommodating groove 322. In this embodiment, the two first locking structures 3 are disposed at intervals, and the two first locking structures 3 are disposed at two ends of the LED box, the base 321 includes a first supporting portion 3211, a second supporting portion 3212 and a fixing portion 3213 fixed to the main box 1, the fixing portion 3213 is fixed to a side of the main box 1 close to the rear cover 2, the first supporting portion 3211 and the second supporting portion 3212 are fixed to a panel surface of the fixing portion 3213 at intervals, the first supporting portion 3211 is close to the rear cover 2, and the first supporting portion 3211 and the second supporting portion 3212 form the accommodating groove 322 together. The side that the top of first supporting part 3211 is close to second supporting part 3212 is equipped with cylindric boss, one side that the top of second supporting part 3212 is close to first supporting part 3211 has the cambered surface, it can be understood, when axis of rotation 31 is located storage tank 322, the week side butt of axis of rotation 31 is in the arc surface of second supporting part 3212 and the side that first supporting part 3211 is close to second supporting part 3212, guarantee axis of rotation 31's rotation more smooth and easy, avoid axis of rotation 31 to rock about simultaneously, and the boss of first supporting part 3211 is located the top of axis of rotation 31, make axis of rotation 31 and the tight fit who rotates seat 32. Preferably, the rear cover 2 is provided with two handles to facilitate the application of force to the rear cover 2, and the top of the second supporting portion 3212, which is close to the side of the first supporting portion 3211, is sequentially arranged by an arc surface and a plane, so as to ensure that the rotating shaft 31 can be disengaged from the accommodating groove 322 after being stressed; the heights of the first supporting portion 3211 and the second supporting portion 3212 are flush with each other, which facilitates the rotation shaft 31 to be separated from the accommodating groove 322.

Referring to fig. 2, 4 and 5, the first limiting member 33 includes a first connecting portion 331 and a limiting portion 332; one end of the first connecting portion 331 is connected to the base 321, the other end is connected to the limiting portion 332 and the limiting portion 332, and the first gap is formed between the limiting portion 332 and the base 321. It can be understood that the limiting portion 332 is located above the accommodating groove, so as to limit the rotating shaft from being separated. In this embodiment, the first connecting portion 331 and the limiting portion 332 together form an inverted L shape, the distance from the limiting portion 332 to the top plate surface of the first supporting portion 3211 is greater than or equal to the diameter of the rotating shaft 31, so that the rotating shaft 31 can be separated from the first gap by the rotating base 32, one end of the limiting portion 332 away from the first connecting portion 331 extends to be flush with the side surface of the first supporting portion 3211 close to the second supporting portion 3212, so that the first limiting member 33 blocks the upward movement of the rotating shaft 31, it can be understood that, after the rear cover 2 rotates by a predetermined angle, such as 15 °, the rear cover 2 is pulled upward, at this time, the rotating shaft 31 moves along with the rear cover 2, so that the rotating shaft 31 is separated from the accommodating groove 322 by overcoming the limitation of the boss of the first supporting portion 3211, and the rotating shaft 31 moves into the first gap, and then the rear cover 2 is pulled outward, at this time, the rotating shaft 31 is separated from the rotating base 32 by the first gap, so that the rear cover 2 is separated from the main box 1, and the complete opening and closing of the LED box body is realized. The first supporting portion 3211, the second supporting portion 3212, the limiting member, and the fixing portion 3213 may be integrally formed, so that connection stability between the components is improved. In other embodiments, the number of the first locking structures 3 can be set according to actual needs, such as 3, 4, and the like.

Referring to fig. 2, fig. 3 and fig. 5, the first locking structure 3 further includes second limiting members 34, two ends of the rotating shaft 31 are respectively provided with one second limiting member 34, when the rotating shaft 31 is disposed at one side of the rear cover 2, that is, two second limiting members 34 are disposed at intervals between the rotating shaft 31 and the rear cover 2, one end of each second limiting member 34 is connected to the rotating shaft 31, the other end of each second limiting member 34 is connected to the rear cover 2, when the rotating shaft 31 is located in the accommodating groove 322, the rotating base 32 is located between the two second limiting members 34, and a side edge of each second limiting member 34 close to the rotating base 32 can abut against the rotating base 32. In the present embodiment, the second limiting member 34 may be a rectangular plate, and preferably, the two second limiting members 34 are integrally disposed and have a U shape, so that the connection between the rotating shaft 31 and the rear cover 2 is more stable and tight. When one side of the second limiting member 34 close to the rotating seat 32 abuts against the rotating seat 32, an included angle between the rear cover 2 and the panel of the main box body 1 is a first included angle, and the first included angle is within a predetermined angle range; when the second limiting member 34 is close to one side of the rotating seat 32 and does not abut against the rotating seat 32, the rotating shaft 31 is limited in the accommodating groove; it can be understood that, firstly, the second limiting member 34 limits the rotation angle of the rear cover 2, that is, the maximum rotation angle of the rear cover 2 is limited to be the first included angle by the second limiting member 34, and the maximum rotation angle is within the predetermined angle range, which is convenient for unlocking operation; secondly, the rotating base 32 is located between the two second limiting members 34, and can limit the rotating shaft 31 from moving along the axial direction of the rotating shaft 31, so as to ensure that the rotating shaft 31 cannot move on the rotating base 32 when rotating. Moreover, in order to ensure that the maximum rotation angle of the rear cover 2 is the first included angle, a notch is formed on the side edge of the second limiting member 34 close to the rotation seat 32; it can be understood that when the included angle between the rear cover 2 and the panel of the main box 1 is the first included angle, the rotating seat 32 extends into the notch, and the rotating seat 32 abuts against the side of the notch.

Referring to fig. 1, 2 and 6, the rotating assembly 41 includes a rotating member 411 and a locking member 412 connected to each other, the blocking assembly 42 includes a fixing seat 421, and the fixing seat 421 has a second gap adapted to the locking member 412; when the second locking structure 4 is locked, the locking element 412 is located in the second gap; when the second lock structure 4 is unlocked, the locking element 412 is not in the second gap. When the rotating component 41 is disposed on the rear cover 2 and the blocking component 42 is disposed on the main box 1, the rotating member 411 penetrates through the rear cover 2 and is rotatably assembled on the rear cover 2, the locking member 412 is fixedly connected to one end of the rotating member 411 close to the main box 1, and the fixing seat 421 is fixed on the main box 1. After the rear cover 2 and the main box 1 are closed, the second gap provided in the fixing seat 421 is located on the rotation track of the locking member 412 to ensure that the second locking structure 4 can be unlocked and locked, and after the second locking structure 4 is locked, the fixing seat 421 blocks the locking member 412 from moving toward the direction close to the rear cover 2. In some embodiments, the rotating member 411 may be a cylinder, and a disk is disposed on the rotating member 411, and one side of the disk close to the rear cover 2 abuts against the rear cover 2, so that the rotating member 411 is rotatably assembled on the rear cover 2; closure 412 can be the rectangle piece, revolving part 411 runs through closure 412 and fixes the week side at revolving part 411, be favorable to realizing that closure 412 rotates in step with revolving part 411, and closure 412 and revolving part 411 constitute the type lock, set up the key hole on the revolving part 411, the key hole inserts and can rotate through key drive revolving part 411 after the key, make revolving part 411's rotation more convenient, also be favorable to setting up the authority simultaneously, guarantee that only the professional can open the LED box. Preferably, after the rotating member 411 rotates 90 °, the locking member 412 rotates to the second gap provided in the fixing seat 421 along with the rotating member 411, and at this time, the fixing seat 421 can block the locking member 412 from moving toward the direction close to the back cover 2, so that the back cover 2 cannot rotate relative to the main box 1, and the locking between the back cover 2 and the main box 1 is achieved. The fixing seat 421 includes a blocking plate 4211 and a side plate 4212, the side plate 4212 and the blocking plate 4211 form a second gap, the blocking plate 4211 includes a second connecting portion and a blocking portion, the second connecting portion is fixed on the main box 1, the blocking portion is fixed at one end of the second connecting portion far away from the main box 1, when the second locking structure 4 is locked, one side of the locking member 412 close to the rear cover 2 abuts against one side of the blocking portion close to the main box 1. Preferably, the second connecting portion and the blocking portion form an inverted L-shaped blocking plate 4211, the second connecting portion is fixed on a side wall of the main box body 1, it can be understood that after the locking member 412 rotates 90 °, the locking member 412 is located between the blocking portion and the main box body 1, and one side of the locking member 412, which is far away from the main box body 1, abuts against the blocking portion, when the rear cover 2 is subjected to an outward pulling force, the locking member 412 abuts against the blocking portion, so that the rear cover 2 cannot rotate relative to the main box body 1, and locking between the rear cover 2 and the main box body 1 is achieved.

Referring to fig. 1 and 6, the blocking assembly 42 further includes an elastic member 423, a fixed end of the elastic member 423 is fixed on an inner wall of the fixing seat 421, a free end of the elastic member 423 extends into the second gap, and the fixing seat 421 is provided with a first yielding hole 424. In this embodiment, the elastic member 423 may be an elastic piece, the elastic member 423 is located in the second gap, a fixed end of the elastic member 423 is fixed on the side plate 4212, and a free end of the elastic member 423 extends into the second gap. When the locking element 412 rotates from the fixed end of the elastic element 423 to the free end of the elastic element 423 and the locking element 412 abuts against the free end of the elastic element 423 and rotates by a second angle, the second locking structure 4 is locked; when the second locking structure 4 is unlocked, the free end of the elastic member 423 can extend into the first relief hole 424. It can be understood that when the locking element 412 is rotated into the second gap, the locking element 412 applies pressure to the free end of the elastic element 423 to move the free end of the elastic element 423 toward the side plate 4212 until the free end of the elastic element 423 abuts against the side plate 4212, and the second locking structure 4 is locked. Preferably, a microswitch can be arranged in the fixing seat 421, the elastic member 423 is a spring plate of the microswitch, and when the elastic member 423 is forced to move to abut against the microswitch body, the microswitch can give out a trigger signal. The first abdicating hole 424 is formed in the blocking portion, so that the elastic member 423 can be prevented from being abutted against the blocking portion by the free end of the elastic member 423 when the elastic member 423 returns, and the elastic member 423 can be prevented from being damaged. Preferably, the blocking portion is provided with two first yielding holes 424, so that the free end of the elastic member 423 can extend into the first yielding hole 424 when any one blocking plate 4211 is arranged on any one side of the LED box body.

Referring to fig. 1 and 2, the LED box further includes an interface assembly 5, the interface assembly 5 includes a connecting seat 52 and an interface 51, the connecting seat 52 is fixed on the main box 1, one end of the connecting seat 52 is fixed on the main box 1, the other end is fixed with two interface 51 arranged at an interval, the rear cover 2 is provided with a second yielding hole matched with the interface 51, and the interface 51 is used for connecting with an external circuit. When the rear cover 2 is covered with the main box body 1, one end of the connecting base 52, which is provided with the interface piece 51, extends into the second abdicating hole, and the rear cover 2 is connected with the connecting base 52 through a screw. In some embodiments, the interface 51 may be an aviation socket, the connecting seat 52 is T-shaped, and as can be understood by the connecting seat 52, the interface 51 extends into the second avoiding hole to facilitate connection of an external circuit to the interface 51; before the second locking structure 4 is released, the connecting seat 52 needs to be separated from the rear cover 2, so that the rear cover 2 is not connected with the main case 1 through the connecting seat 52, and the interface assembly 5 is prevented from obstructing the rotation of the rear cover 2 relative to the main case 1.

Example 2:

the utility model provides a LED display screen, includes an at least LED box, and the LED box includes control assembly and display module, and control assembly fixes in the main tank body and is close to one side of back lid, and display module fixes in the main tank body and keeps away from one side of back lid, and the control assembly electricity is connected in display module. In this embodiment, the LED display screen is formed by a plurality of LED box concatenations, and the interface piece electricity is connected in control assembly, and control assembly electricity is connected in display assembly, and the interface piece links to each other with external power source and realizes the power supply of LED display screen. Contact at elastic component and closure, and the elastic component atress removes to the butt behind the micro-gap switch body, and micro-gap switch can give trigger signal and transmit to control assembly, and control assembly can judge whether closed according to this trigger signal LED box, and when control assembly judge that LED is closed after, control assembly control display assembly shows.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. An LED box, its characterized in that includes: the device comprises a main box body, a rear cover, a first locking structure and a second locking structure;

the first locking structure comprises a rotating shaft and a rotating seat, one of the rotating shaft and the rotating seat is arranged on one side of the rear cover, the other one of the rotating shaft and the rotating seat is arranged on one side of the main box body, the rotating seat is provided with a containing groove matched with the rotating shaft, the rotating shaft can be arranged in the containing groove, and the rotating shaft can be pulled away from the containing groove when the included angle between the rear cover and the panel of the main box body is within a preset angle range;

the second locking structure comprises a rotating component and a blocking component, one of the rotating component and the blocking component is arranged on the rear cover, and the other one of the rotating component and the blocking component is arranged on the main box body; when the rotating shaft is positioned in the accommodating groove and the rotating assembly is embedded into the blocking assembly, the rear cover is covered with the main box body, and at the moment, the included angle between the rear cover and the panel of the main box body is not within the preset angle range.

2. The LED box of claim 1, wherein the rotating base comprises a base and a first limiting member, the receiving cavity is formed in the base, the first limiting member is disposed on one side of the base where the receiving cavity is formed, a first gap is formed between the first limiting member and the base, the rotating shaft passes through the first gap, when an included angle between the rear cover and the panel of the main box is within a predetermined angle range, the rotating shaft can be pulled away from the receiving cavity after passing through the first gap, and when the included angle between the rear cover and the panel of the main box is not within the predetermined angle range, the first limiting member blocks the rotating shaft from being pulled away from the receiving cavity.

3. The LED cabinet of claim 2, wherein the first stop member comprises a first connecting portion and a stop portion; one end of the first connecting portion is connected with the base, the other end of the first connecting portion is connected with the limiting portion, and the first gap is formed between the limiting portion and the base.

4. The LED box of claim 1, wherein the first locking structure further comprises a second limiting member, a second limiting member is disposed at each end of the rotating shaft, and when the rotating shaft is located in the accommodating groove, the rotating base is located between the two second limiting members.

5. The LED box body according to claim 4, wherein when the second position limiting member abuts against the rotating seat near the side edge of the rotating seat, an included angle between the rear cover and the panel of the main box body is a first included angle, and the first included angle is within the predetermined angle range; when the side edge of the second limiting part close to the rotating seat is not abutted against the rotating seat, the rotating shaft is limited in the accommodating groove.

6. The LED box of claim 5, wherein a notch is formed in a side of the second limiting member close to the rotating seat, and when an included angle between the rear cover and the panel of the main box is a first included angle, the rotating seat extends into the notch and abuts against a side of the notch.

7. The LED cabinet of claim 1, wherein the rotating assembly comprises a rotating member and a locking member connected to each other, and the blocking assembly comprises a fixed seat having a second gap adapted to the locking member; when the second locking structure is locked, the locking piece is positioned in the second gap; when the second locking structure is unlocked, the locking piece is not in the second gap.

8. The LED box body of claim 7, wherein the blocking assembly further comprises an elastic member, a fixed end of the elastic member is fixed on an inner wall of the fixed seat, a free end of the elastic member extends into the second gap, and the fixed seat is provided with a first abdicating hole; the locking piece rotates from the fixed end of the elastic piece to the free end of the elastic piece, and when the locking piece abuts against the free end of the elastic piece and rotates for a second angle, the second locking structure is locked; when the second locking structure is unlocked, the free end of the elastic piece can extend into the first abdicating hole.

9. The LED box body according to claim 1, further comprising an interface assembly, wherein the interface assembly comprises a connecting seat and an interface piece, the connecting seat is fixed on the main box body, the interface piece is fixed on the connecting seat, and the rear cover is provided with a second abdicating hole matched with the interface piece; when the rear cover and the main box body cover, the interface piece is positioned in the second yielding hole, and the connecting seat is connected with the rear cover.

10. An LED display screen, comprising at least one LED box body as claimed in any one of claims 1 to 9, wherein the LED box body further comprises a control component and a display component, the control component is fixed on one side of the main box body close to the rear cover, the display component is fixed on one side of the main box body far away from the rear cover, and the control component is electrically connected to the display component.

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