CN219437302U - Magnetic attraction type display equipment - Google Patents

Abstract

The utility model provides a magnetic attraction type display device which comprises a frame body, a display panel, a first backboard, a second backboard and a locking part. The display panel is connected to the front side of the frame. The first backboard and the second backboard are both connected and cover the back side opening of the frame body, the first backboard is hinged with the frame body, and the second backboard is hinged with the frame body. The locking part is connected to the frame body and is positioned between the first backboard and the second backboard, and the locking part comprises a first magnetic piece. The first backboard is provided with a second magnetic piece, and the second backboard is provided with a third magnetic piece. The locking part is provided with a first state for enabling the first magnetic piece to magnetically attract the second magnetic piece and the third magnetic piece respectively and a second state for enabling the first magnetic piece to be separated from the second magnetic piece and the third magnetic piece respectively, and is configured to be switched between the first state and the second state after the locking part obtains external driving force. The magnetic attraction type opening and closing display equipment can realize the opening and closing fixation of the backboard through the magnetic attraction structure, and is convenient for the staff to overhaul and maintain.

Description

Magnetic attraction type display equipment

Technical Field

The utility model relates to the technical field of LEDs, in particular to a magnetic attraction type display device.

Background

In the related art, one common type of LED display screen is a fully sealed structure of a die-casting box body, and the display screen can only be maintained before installation due to a rear cover convenient to disassemble and assemble; the other type is a combined form of the frame and the rear cover, and the rear cover can be overhauled and maintained before and after installation, but the fixing mode of the rear cover on the market at present is usually in the form of screwing, when the display screen is needed to be overhauled, the rear cover is usually required to be disassembled to be placed at other positions for maintenance, the operation is very difficult under the scene of high-altitude operation or narrow maintenance channel, and the disassembled screws are easy to lose, so that the operation of relevant overhauling and maintenance on the display screen is very inconvenient, and the working efficiency is low.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the magnetic attraction type display equipment, which can realize the opening and closing fixation of the backboard through the magnetic attraction structure, and is convenient for related personnel to carry out overhaul and maintenance.

A magnetically-actuated display device according to an embodiment of the present utility model includes,

a frame;

a display panel connected to a front side of the frame;

the first backboard is connected to the back side of the frame body;

the second backboard is connected to the back side of the frame body, the second backboard and the first backboard jointly cover the back side opening of the frame body, one side of the second backboard, which is away from the first backboard, is hinged with the frame body, and one side of the first backboard, which is away from the second backboard, is hinged with the frame body; the method comprises the steps of,

the locking part is connected to the frame body and is positioned between the first backboard and the second backboard, and the locking part comprises a first magnetic piece;

the locking part is provided with a first state and a second state, wherein the first state enables the first magnetic part to magnetically attract the second magnetic part and the third magnetic part respectively, the second state enables the first magnetic part to separate from the second magnetic part and the third magnetic part respectively, and the locking part is configured to switch between the first state and the second state after acquiring external driving force.

According to some embodiments of the utility model, a first elastic member is arranged between the first backboard and the frame body, and the first elastic member can generate an elastic force for enabling one side of the first backboard away from the hinge to rotate in a direction away from the frame body;

and/or, the number of the groups,

the second elastic piece is arranged between the second backboard and the frame body, and the second elastic piece can generate elastic force which enables one side, away from the hinge position, of the second backboard to rotate along the direction away from the frame body.

According to some embodiments of the utility model, the first elastic member includes a torsion spring and a latch, the torsion spring is sleeved on the latch, one end of the latch is connected with the frame, the other end of the latch is connected with the first back plate, one end of the torsion spring abuts against the frame, the other end of the torsion spring abuts against the first back plate, and the torsion spring can generate an elastic force for enabling the first back plate to rotate around a rotation axis of the latch.

According to some embodiments of the utility model, a groove for accommodating a torsion spring is formed in a hinge position of the first backboard and the frame body, the groove is arranged facing one side of the frame body, a first opening is formed in the groove along a direction parallel to a rotation axis of the bolt, the bolt can penetrate through the first opening, a rotation hole is formed in a hinge position of the frame body and the first backboard, and the bolt can penetrate through the rotation hole.

According to some embodiments of the utility model, a boss is provided at a side of the rotation hole at the bottom of the frame toward the top of the frame, the boss being capable of supporting the first and/or second back plates.

According to some embodiments of the utility model, the locking portion further includes a key, the first back plate and the second back plate have a first direction parallel to the opposite arrangement direction, the key is disposed at a center of the frame along the first direction, and the first back plate and the second back plate are symmetrically distributed about the key.

According to some embodiments of the utility model, the locking part further comprises a connecting plate, the first magnetic piece comprises a first magnetic block and a second magnetic block, the connecting plate is hinged on the frame along a direction parallel to the frame from the back side to the front side, the first magnetic block is arranged at one end of the connecting plate along the first direction, the second magnetic block is arranged at the other end of the connecting plate along the first direction, the key is connected to the connecting plate, and the distance from the first magnetic block to the key is larger than or smaller than the distance from the second magnetic block to the key.

According to some embodiments of the utility model, the key is disposed at a center of the frame along a direction perpendicular to the first direction, and distances from the key to opposite sides of the frame along the direction perpendicular to the first direction are equal.

According to some embodiments of the utility model, a third elastic member is further connected between the key and the frame, and when the key is in the second state, the third elastic member generates an elastic force that moves the key in a direction from the first state to the second state.

According to some embodiments of the utility model, the frame is provided with a second opening, and the key can be accommodated in the second opening and slide in the second opening along a direction parallel to the frame from the back side to the front side.

The magnetic attraction type display device provided by the embodiment of the utility model has at least the following beneficial effects:

when the display panel is in need of overhauling or maintaining, only the locking part is in the second state, namely, a worker applies driving force to the locking part to separate the first magnetic piece from the second magnetic piece and separate the first magnetic piece from the third magnetic piece, so that the magnetic attraction force between the first magnetic piece and the second magnetic piece and between the first magnetic piece and the third magnetic piece can be reduced or eliminated. Because the first backboard and the second backboard are both hinged with the frame body, a worker can directly rotate and open the first backboard and the second backboard, and then the target operation on the display panel is completed. When the overhaul is completed, the locking part is only required to be in a first state, namely the first backboard and the second backboard are rotated to be closed relative to the frame body, so that the first magnetic piece is respectively in magnetic attraction connection with the second magnetic piece and the third magnetic piece, and the magnetic attraction fixation of the first backboard and the second backboard is completed. The first backboard and the second backboard are arranged, the operation force arm required by the first backboard and the second backboard is shorter relative to the single backboard, and the fixation between the first backboard and the second backboard and the frame body is also firmer, so that the opening or closing operation performed on the first backboard and the second backboard by a worker is more labor-saving. And the steps of disassembling and arranging the first backboard, the second backboard, the screws and related tools are omitted in the whole operation process, so that related articles can be prevented from falling, the safety of overhaul and maintenance is ensured, and the whole operation is convenient and quick, simple and efficient.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic perspective view showing a closed state of a magnetic attraction type display device according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view showing an open state of a magnetic attraction type display device according to an embodiment of the present utility model;

FIG. 3 is an enlarged partial schematic view at A of FIG. 2;

FIG. 4 is a schematic cross-sectional view of a locking portion according to an embodiment of the present utility model in a first state;

FIG. 5 is a schematic cross-sectional view of a locking portion in a second state according to an embodiment of the present utility model;

FIG. 6 is a schematic perspective view of a first back plate according to an embodiment of the utility model;

FIG. 7 is an enlarged partial schematic view at B of FIG. 6;

FIG. 8 is a schematic perspective view of a frame according to an embodiment of the utility model;

FIG. 9 is an enlarged partial schematic view at C of FIG. 8;

FIG. 10 is a partially enlarged schematic view of FIG. 8 at D;

fig. 11 is a schematic view illustrating a structure of a back plate with a single-side opening according to another embodiment of the utility model.

Reference numerals:

a display device 10;

a frame 100; a backside opening 110; a second opening 120; a rotation hole 130; a boss 140; a third opening 150;

a display panel 200;

a first back plate 300; a second magnetic member 310; a first elastic member 320; a torsion spring 321; a latch 322; a recess 333; a first aperture 334;

a second back plate 400; a third magnetic member 410; a second elastic member 420;

a locking part 500; a first magnetic member 510; a first magnetic block 511; a second magnetic block 512; a key 520; a connection plate 530; and a third elastic member 540.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation or positional relationships indicated with respect to the description of the aspects, such as upper, lower, front, rear, left, right, back, etc., are based on the orientation or positional relationships shown in the drawings, are merely for convenience of description and to simplify the description, and are not indicative or implying that the apparatus or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

In the description of the present utility model, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the related art, one common form of the LED display screen is a fully sealed structure of the die-casting box, and the display screen can only be maintained before installation due to a rear cover convenient to disassemble and assemble; the other type is a combined form of the frame and the rear cover, and the maintenance can be carried out before and after the installation, but the fixing mode of the rear cover on the market at present is usually in the form of screwing, when the display screen is required to be maintained, the rear cover is usually required to be disassembled and put in other positions for maintenance, the operation is very difficult under the scene of high-altitude operation or narrow maintenance channel, and the disassembled screws are easy to lose, so that the related maintenance operation of the display screen is very inconvenient, and the working efficiency is low.

Referring to fig. 1 to 10, the present utility model proposes a magnetic attraction type display device 10 including a frame 100, a display panel 200, a first back plate 300, a second back plate 400, and a locking portion 500.

The frame 100 may be die-cast, or formed by other processes. The frame 100 may be used as a whole or may be formed by fixedly splicing a plurality of frames. The frame 100 may be a rectangular frame, or may be a circular or other frame. The housing 100 has an opening, and can mount the display panel 200 and related components. It should be understood that the shape and size of the frame 100 should not be construed as limiting the utility model. In the present embodiment, referring to fig. 2 and 8, the frame 100 is rectangular in shape.

The display panel 200 may be applied to a display screen of the display device 10, which may be a flexible display screen or a rigid display screen. The flexible display screen can be an OLED flexible display screen or a quantum dot light emitting diode (quantum dotlight emitting diode, QLED) flexible display screen.

The first and second backplates 300 and 400 may be used to protect circuits and related electrical components inside the housing 100. The specific shape and size is set according to the structure of the frame 100.

The locking portion 500 is a locking structure capable of locking the first back plate 300 and the second back plate 400 with respect to the housing 100. The locking portion 500 is connected to the frame 100, and the locking portion 500 is located between the first back plate 300 and the second back plate 400, and the locking portion 500 includes a first magnetic member 510.

The display panel 200 is connected to the front side of the frame 100. The first back plate 300 is connected to the back side of the frame 100, the second back plate 400 is connected to the back side of the frame 100, and the first back plate 300 and the second back plate 400 jointly cover the back side opening 110 of the frame 100. It is understood that the first back plate 300 and the second back plate 400 may cover the opening on the back side of the frame 100 together, or cover a part of the opening on the back side of the frame 100 together, and the uncovered area is covered by other structures, which may be determined according to practical situations. The size of the openings covered by the first and second backplates 300, 400 should not be limiting to the present utility model.

The second back plate 400 is hinged to the frame 100 at a side facing away from the first back plate 300, and the first back plate 300 is hinged to the frame 100 at a side facing away from the second back plate 400. It should be noted that, the side of the first back plate 300 facing away from the second back plate 400 is hinged to the frame body 100, that is, the first back plate 300 may be rotated to open or close relative to the frame body 100, it is understood that the rotation axis of the first back plate 300 may be a first axis, and the first axis is an axis parallel to the side of the length direction of the first back plate 300, where the length direction may be understood as the length direction of the hinged side of the first back plate 300. Likewise, the second back plate 400 may also be opened and closed by rotating with respect to the frame 100, and the second back plate 400 is similar to the determination of the rotation axis of the first back plate 300, and will not be described herein.

The second magnetic element 310 is disposed on a side of the first back plate 300 adjacent to the second back plate 400, and the third magnetic element 410 is disposed on a side of the second back plate 400 adjacent to the first back plate 300. The locking portion 500 has a first state in which the first magnetic member 510 magnetically attracts the second magnetic member 310 and the third magnetic member 410, respectively, and a second state in which the first magnetic member 510 is separated from the second magnetic member 310 and the third magnetic member 410, respectively. The lock portion 500 is configured to switch between a first state and a second state after acquiring an external driving force.

It should be noted that, in the first state, when the first magnetic element 510 magnetically attracts the second magnetic element 310 and the third magnetic element 410, the first back plate 300 and the second back plate 400 may be closed with respect to the frame 100 due to the magnetic attraction between the magnetic elements. In the second state, the first magnetic member 510 is separated from the second magnetic member 310 and the third magnetic member 410, respectively, and the magnetic attraction between the first back plate 300 and the second back plate 400 is reduced or eliminated, so that the first back plate 300 and the second back plate 400 can be opened by rotating the first back plate 300 and the second back plate 400 with respect to the frame 100 by applying an external force. It is understood that the external driving force may refer to an associated operator applying a certain force to the locking portion 500 to complete the switching between the first state and the second state.

It should be noted that the first magnetic member 510 may include a plurality of magnetic members, or may be a single magnetic member. The first magnetic member 510 may be a magnet or an iron block, and the second magnetic member 310 and the third magnetic member 410 may be iron blocks or magnets. It will be appreciated that in order to enable the first magnetic member 510 to magnetically attract the second magnetic member 310 or the third magnetic member 410, respectively. When the first magnetic member 510 is a magnet, the second magnetic member 310 and the third magnetic member 410 may be iron pieces, and when the first magnetic member 510 is an iron piece, the second magnetic member 310 and the third magnetic member 410 may be magnets. Or the first magnetic member 510, the second magnetic member 310 and the third magnetic member 410 are all magnets, but the assembly position needs to be careful that the magnetic poles of the first magnetic member 510 cannot repel the magnetic poles of the second magnetic member 310 and the third magnetic member 410 that need to be in contact.

It will be appreciated that, in addition to the iron pieces, ferrous metals having magnetic properties may also be used as the magnetic members, including: iron alloys, iron, cobalt, nickel, and the like. Different substances can be selected as the magnetic member according to practical situations, and the kind of the magnetic member should not be a limitation of the present utility model.

When the display panel 200 needs to be overhauled or maintained, only the locking portion 500 needs to be in the second state, that is, a worker applies a driving force to the locking portion 500 to separate the first magnetic member 510 from the second magnetic member 310 and the third magnetic member 410, so that the magnetic attraction force between the first magnetic member 510 and the second magnetic member 310 and the third magnetic member 410 can be reduced or eliminated. Since the first and second backplates 300 and 400 are both hinged to the frame 100, a worker can directly rotate the first and second backplates 300 and 400 open and then perform a desired operation on the display panel 200. When the maintenance is completed, only the locking portion 500 needs to be in the first state, that is, the first backboard 300 and the second backboard 400 are rotated to be closed relative to the frame 100, so that the first magnetic member 510 is magnetically connected with the second magnetic member 310 and the third magnetic member 410, and the magnetic attraction fixation of the first backboard 300 and the second backboard 400 is completed. The first and second backplates 300 and 400 are provided to have a shorter operation arm than that required for a single backplate, and are also more firmly fixed to the frame 100, so that the operator can perform more labor-saving opening or closing operations on the first and second backplates 300 and 400. And the steps of disassembling and arranging the first backboard 300, the second backboard 400, the screws and related tools are omitted in the whole operation process, so that related articles can be prevented from falling, the maintenance safety is ensured, and the whole operation is convenient and quick, simple and efficient.

Alternatively, when a large screen is selected, a plurality of display panels 200 may be combined, and a plurality of housings 100 may be selected to be combined. It will be appreciated that a plurality of first and second backplates 300, 400 are also provided simultaneously. In the case of the display panel 200 having a smaller size, only the first back plate 300 may be provided, one side of the first back plate 300 may be hinged to one side of the frame 100, the first back plate 300 may cover the back side opening 110 of the frame 100, the second magnetic member 310 may be provided on one side of the first back plate 300 facing away from the hinge, and the locking portion 500 may be provided on the corresponding frame 100. The locking part 500 includes a first magnetic member 510, and the locking part 500 has a first state in which the first magnetic member 510 magnetically attracts the second magnetic member 310, and a second state in which the first magnetic member 510 is separated from the second magnetic member 310. The lock portion 500 may be configured to switch between the first state and the second state after the external driving force is acquired. It will be appreciated that the number of back plates provided should not be limiting to the utility model.

In some embodiments, referring to fig. 2 and 3, a first elastic member 320 is disposed between the first back plate 300 and the frame 100. The first elastic member 320 can generate an elastic force to rotate a side of the first back plate 300 facing away from the hinge in a direction away from the frame 100. A second elastic member 420 is disposed between the second back plate 400 and the frame body 100, and the second elastic member 420 can generate an elastic force that enables one side of the second back plate 400 away from the hinge to rotate in a direction away from the frame body 100. It is understood that the first elastic member 320 and the second elastic member 420 may be provided at the same time, or only any one of the first elastic member 320 and the second elastic member 420 may be selectively provided. The elastic member can open the first back plate 300 or the second back plate 400 by means of the elastic force thereof when the locking part 500 is in the second state, so that the operation is convenient and quick, the workload of related operators is reduced, and the working efficiency is improved.

In some embodiments, referring to fig. 2 and 3 and fig. 6 and 7, the first elastic member 320 includes a torsion spring 321 and a latch 322. The torsional spring 321 is sleeved on the bolt 322, one end of the bolt 322 is connected with the frame body 100, the other end of the bolt 322 is connected with the first backboard 300, one end of the torsional spring 321 abuts against the frame body 100, the other end of the torsional spring 321 abuts against the first backboard 300, and the torsional spring 321 can generate elastic force for enabling the first backboard 300 to rotate around the rotation axis of the bolt 322. It is understood that the first elastic member 320 may be provided in plurality and may be spaced along the length direction of the first back plate 300 or the second back plate 400, so that the first elastic member 320 has enough elastic force to enable the first back plate 300 to rotate open. It should be noted that the second elastic member 420 may also include a torsion spring 321 and a latch 322, and the second elastic member 420 is similar to the first elastic member 320 in arrangement, which is not described herein.

In some embodiments, referring to fig. 6 to 9, a groove 333 for accommodating the torsion spring 321 is provided at the hinge of the first back plate 300 with the frame 100. The groove 333 faces one side of the frame body 100, the groove 333 is provided with a first opening 334 along a direction parallel to a rotation axis of the bolt 322, the bolt 322 can penetrate into the first opening 334, a hinge joint of the frame body 100 and the first backboard 300 is provided with a rotation hole 130, and the bolt 322 can penetrate into the rotation hole 130. It will be appreciated that, similar to the first back plate 300, the second back plate 400 may be provided with a groove 333 for accommodating the torsion spring 321 at the hinge portion of the second back plate 400 with the frame 100, and the groove 333 faces one side of the frame 100. The groove 333 is provided with a first opening 334 along a direction parallel to the rotation axis of the latch 322, the latch 322 can penetrate into the first opening 334, the hinge joint of the frame 100 and the first back plate 300 is provided with a rotation hole 130, and the latch 322 can penetrate into the rotation hole 130. The rotation hole 130 may be a kidney-shaped hole, and the rotation hole 130 may define an opening angle of the first and second backplates 300 and 400.

In some embodiments, referring to fig. 8 and 9, a boss 140 is provided at a side of the rotation hole 130 at the bottom of the frame 100 toward the top of the frame 100, and the boss 140 can support the first and second backplates 300 and 400, or can support either one of the first and second backplates 300 and 400 alone. It is understood that the bosses 140 may be provided in plurality at intervals and arranged at the bottom of the frame 100 in the first direction. The boss 140 can support the back plate to keep the back plate in a centered position in the frame 100, and the first back plate 300 or the second back plate 400 does not touch the corners of the frame 100 that must be present in CNC machining during opening.

In some implementations, referring to fig. 1 and 2, the locking portion 500 further includes a key 520, the first back plate 300 and the second back plate 400 have a first direction opposite to each other, the key 520 may be disposed at a center of the frame 100 along the first direction, and the first back plate 300 and the second back plate 400 are symmetrically distributed about the key 520. The key 520 is disposed in the center, so that the operator can operate the device conveniently, and the force arms of the first back plate 300 and the second back plate 400 can be equal, so that the stress of the frame 100 is uniform.

In some embodiments, referring to fig. 4 and 5, the connection plate 530 may also be directly connected to the key 520, and the connection plate 530 is fixed to the frame body by a screw. The first magnetic block 511 is disposed at one end of the connection plate 530 along the first direction, and the second magnetic block 512 is disposed at the other end of the connection plate 530 along the first direction. Meanwhile, the connection plate 530 can move on the frame 100 along a direction parallel to the frame 100 from the front side to the rear side along with the key 520 and drive the first magnetic member 510 to magnetically attract the second magnetic member 310 and the third magnetic member or separate from the second magnetic member 310 and the third magnetic member 410, respectively.

In other embodiments, referring to fig. 11, the locking portion 500 further includes a connection plate 530. The first magnetic part 510 includes a first magnetic block 511 and a second magnetic block 512. The connection plate 530 is hinged to the frame 100 along the thickness of the frame 100. The first magnetic block 511 is disposed at one end of the connection plate 530 along the first direction, and the second magnetic block 512 is disposed at the other end of the connection plate 530 along the first direction. The key 520 is connected to the connecting plate 530, and the distance from the first magnetic block 511 to the connection point of the key 520 and the connecting plate 530 is greater than or less than the distance from the second magnetic block 512 to the connection point of the key 520 and the connecting plate 530.

Referring to fig. 11, the display apparatus 10 may have three cases in which the first back plate 300 is opened at one side, the second back plate 400 is opened at one side, and the third back plate 300 and the second back plate 400 are closed. In the first case, when the distance from the first magnetic block 511 to the connection point of the key 520 and the connection plate 530 is smaller than the distance from the second magnetic block 512 to the connection point of the key 520 and the connection plate 530, when the key 520 is pressed, the side of the connection plate 530 close to the first magnetic block 511 is pressed to rotate towards the side far away from the first back plate 300, so that the first magnetic block 511 can be far away from the second magnetic piece 310, and the second magnetic block 512 can be close to and magnetically attract the third magnetic piece 410, so that the single-side opening of the first back plate 300 is realized. In the second case, when the key 520 is pulled, the side of the connecting plate 530, which is close to the first magnetic block 511, is pulled to rotate along the direction of approaching the first back plate 300, so that the second magnetic block 512 can be far away from the third magnetic piece 410, the first magnetic block 511 can be close to and magnetically attract the second magnetic piece 310, and the single-side opening of the second back plate 400 can be realized. In the third case, when the connection plate 530 is not rotated, i.e., in the balanced state, the first magnetic member 510 may magnetically attract the second magnetic member 310 and the third magnetic member 410, respectively, so that the first back plate 300 and the second back plate 400 are in the closed state. When the distance from the first magnetic block 511 to the connection point between the key 520 and the connection plate 530 is smaller than the distance from the second magnetic block 512 to the connection point between the key 520 and the connection plate 530, the opening and closing sequence of the first back plate 300 and the second back plate 400 is opposite to the above-mentioned situation, and will not be repeated here. Different structures can be selected according to actual conditions. The structure that unilateral was opened is convenient for the staff to overhaul and maintain appointed region, can save space under the narrow and small circumstances of maintenance environment, and the staff of being convenient for carries out relevant operation.

In some implementations, referring to fig. 1 and 2, the key 520 may be disposed at a center of the frame 100 along a direction perpendicular to the first direction, and the distances from the key 520 to opposite sides of the frame 100 along the direction perpendicular to the first direction are equal, that is, the distances from the key 520 to the opposite sides of the frame 100 along the length direction are equal. The key 520 is disposed in the center, which is convenient for the operator to operate, so that the magnetic attraction force of the first back plate 300 and the second back plate 400 along the length direction of the frame 100 is more uniform. Enhancing the stability of the connection of the back plate to the frame 100.

In some embodiments, referring to fig. 4 and 5, a third elastic member 540 is further connected between the key 520 and the frame 100, and when the key 520 is in the second state, the third elastic member 540 generates an elastic force that moves the key 520 in the direction of moving to the first state. Namely, the third elastic member 540 changes the key 520 from the second state to the first state by means of its own elastic force. When the related personnel complete the maintenance work on the display screen and rotate the first backboard 300 and the second backboard 400 to close, the first magnetic piece 510 can magnetically attract the second magnetic piece 310 and the third magnetic piece 410 respectively to complete the fixation of the first backboard 300 and the second backboard 400. The maintenance work of related staff can be greatly facilitated.

In some embodiments, referring to fig. 10, the frame 100 is further provided with a second opening 120, and the key 520 can be accommodated in the second opening 120 and slide in the second opening 120 along a direction parallel to the frame 100 from the back side to the front side. The second opening 120 can define a moving direction of the key 520, preventing the key 520 from being shifted during movement. The stability of magnetic attraction between the first magnetic member 510 and the second magnetic member 310 and the third magnetic member 410, respectively, is ensured. It can be appreciated that a third opening 150 may be further disposed on the frame 100, where the third opening 150 can accommodate the first magnetic block 511 or the second magnetic block 512.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.

Claims (10)

1. A magnetically-actuated display device, comprising:

a frame;

a display panel connected to a front side of the frame;

the first backboard is connected to the back side of the frame body;

the second backboard is connected to the back side of the frame body, the second backboard and the first backboard jointly cover the back side opening of the frame body, one side of the second backboard, which is away from the first backboard, is hinged with the frame body, and one side of the first backboard, which is away from the second backboard, is hinged with the frame body; the method comprises the steps of,

the locking part is connected to the frame body and is positioned between the first backboard and the second backboard, and the locking part comprises a first magnetic piece;

the locking part is provided with a first state and a second state, wherein the first state enables the first magnetic part to magnetically attract the second magnetic part and the third magnetic part respectively, the second state enables the first magnetic part to separate from the second magnetic part and the third magnetic part respectively, and the locking part is configured to switch between the first state and the second state after acquiring external driving force.

2. The magnetically-openable display apparatus according to claim 1, wherein a first elastic member is provided between the first back plate and the frame body, the first elastic member being capable of generating an elastic force that rotates a side of the first back plate facing away from the hinge in a direction away from the frame body;

and/or the number of the groups of groups,

the second elastic piece is arranged between the second backboard and the frame body, and the second elastic piece can generate elastic force which enables one side, away from the hinge position, of the second backboard to rotate along the direction away from the frame body.

3. The magnetic attraction type display device according to claim 2, wherein the first elastic member comprises a torsion spring and a latch, the torsion spring is sleeved on the latch, one end of the latch is connected with the frame, the other end of the latch is connected with the first back plate, one end of the torsion spring abuts against the frame, the other end of the torsion spring abuts against the first back plate, and the torsion spring can generate elastic force enabling the first back plate to rotate around a rotation axis of the latch.

4. A magnetic attraction type display device as claimed in claim 3, wherein a groove for accommodating a torsion spring is provided at a hinge part of the first back plate and the frame body, the groove is provided facing one side of the frame body, a first opening is provided in the groove along a direction parallel to a rotation axis of the latch, the latch can penetrate into the first opening, a rotation hole is provided at a hinge part of the frame body and the first back plate, and the latch can penetrate into the rotation hole.

5. The magnetically attractable display device of claim 4, wherein a boss is provided on a side of the rotation hole at the bottom of the frame toward the top of the frame, the boss being capable of supporting the first and/or second back plates.

6. The magnetically-actuated display device according to claim 1, wherein the locking portion further comprises a key, the first back plate and the second back plate have a first direction parallel to the opposite arrangement direction, the key is disposed at a center of the frame along the first direction, and the first back plate and the second back plate are symmetrically distributed with respect to the key.

7. The magnetically-actuated display device according to claim 6, wherein the locking portion further comprises a connection plate, the first magnetic member comprises a first magnetic block and a second magnetic block, the connection plate is hinged to the frame in a direction parallel to the frame from the back side to the front side, the first magnetic block is disposed at one end of the connection plate in the first direction, the second magnetic block is disposed at the other end of the connection plate in the first direction, the key is connected to the connection plate, and a distance from the first magnetic block to the key is greater than or less than a distance from the second magnetic block to the key.

8. The magnetically attractable display device of claim 6 wherein the key is located in a center of the frame along a direction perpendicular to the first direction, and the distance from the key to opposite sides of the frame along the direction perpendicular to the first direction is equal.

9. The magnetically attractable display device of claim 8 wherein a third spring is further connected between the key and the frame, the third spring producing a spring force that moves the key in a direction from the first state when the key is in the second state.

10. The magnetically attractable display device of claim 9 wherein the housing has a second opening, the key being receivable in the second opening and slidable therein in a direction parallel to the housing from the back side to the front side.