CN217544089U - Display screen - Google Patents

Abstract

The utility model provides a display screen. This display screen includes: the display screen frame is provided with a locking part; the power supply box comprises a box body and a quick lock arranged on the box body; the quick lock comprises a lock seat, a locking button and a lock tongue, wherein the lock seat is provided with a mounting hole and an accommodating groove communicated with the mounting hole, and the lock tongue is accommodated in the accommodating groove; the locking button is provided with the locking lever along pressing the direction, and the locking lever runs through the mounting hole, and the locking lever cover is equipped with first elastic component, and the locking lever is kept away from the one end of locking button and is domatic for the slope, and the spring bolt is provided with the lockhole, domatic stretch into in the lockhole and with lockhole side butt, the accepting groove has towards the opening of locking portion, the spring bolt by domatic different position contact and through opening roll-off to butt locking portion, perhaps slide in to breaking away from locking portion from the opening. The utility model discloses a locking button only needs an action alright with the simple and fast ground dismouting of power pack, raises the efficiency.

Description

Display screen

Technical Field

The utility model relates to a display device technical field, in particular to display screen.

Background

In the information age, LED display screens for displaying various information such as images, moving pictures, characters, music, and the like are widely used in various indoor and outdoor situations such as advertisement display devices and stage display devices.

The large-scale LED display screen is generally formed by assembling a plurality of box type display modules. In the assembling process, the plurality of cases are often fixed by a member such as a connector or a bolt. A single box body mainly comprises a frame, a display module arranged in the frame, a power supply box for supplying power to the display screen and other parts, and the power supply box needs to be replaced and maintained regularly. At present, most of power supply boxes of display screen products are installed and fixed through screws, and are stable and reliable, however, when the power supply boxes are assembled and disassembled, a large number of screws need to be screwed through threads, and time consumption is long. In order to solve the problem, the power supply box of part of display screen products is fixed in a hasp mode, when the power supply box is disassembled, 4 or more hasps are required to be loosened to take down the power supply box for subsequent maintenance, and the disassembling action is still complicated. Therefore, in order to effectively improve the working efficiency and achieve the purposes of quick maintenance, quick disassembly and quick installation, a display screen structure capable of realizing quick disassembly and assembly is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a display screen to power pack on the display screen maintains the inconvenient problem of dismantlement among the solution prior art.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a display screen, comprising: the display screen frame is provided with a locking part; the power supply box comprises a box body and a quick lock arranged on the box body; the quick lock comprises a lock seat, a locking button and a lock tongue, the lock seat is fixed in the box body, the lock seat is provided with a mounting hole and an accommodating groove communicated with the mounting hole, and the lock tongue is accommodated in the accommodating groove and is in sliding fit with the accommodating groove; locking button is provided with the locking lever along pressing the direction, the locking lever runs through the mounting hole and with the mounting hole interval sets up, the locking lever cover is equipped with first elastic component, the one end and the lock seat of first elastic component are contradicted, the other end with locking button or locking lever butt, the locking lever one end of keeping away from locking button is domatic for the slope, the spring bolt is provided with the lockhole, it stretches into domaticly in the lockhole and with lockhole side butt, the accepting groove have towards the opening of locking portion, the spring bolt is in stretch out under domatic promotion the opening until with locking portion offsets, perhaps shrink extremely in the opening, until with locking portion breaks away from.

According to an aspect of the utility model, domatic setting is in the locking lever dorsad open-ended one side.

According to an aspect of the utility model, domatic for the axial slope of locking lever makes the locking lever is kept away from locking button's one end is the taper of convergent diameter.

According to an aspect of the utility model, the quick lock still includes the second elastic component, the second elastic component is located in the accepting groove, the second elastic component connect or the butt in the spring bolt side, the flexible direction of second elastic component with the moving direction of spring bolt is unanimous.

According to one aspect of the present invention, the locking rod is provided with a guide hole extending along the axial direction of the locking rod; the quick lock further comprises a positioning pin, and the positioning pin is fixed on the lock seat and extends into the guide hole.

According to the utility model discloses an aspect, domatic setting is in the locking lever towards open-ended one side.

According to the utility model discloses an aspect, the spring bolt is platelike structure, the spring bolt can stretch out open-ended one end is tongue point portion, tongue point portion is provided with first direction inclined plane.

According to the utility model discloses an aspect, locking portion including can dismantle connect in main part on the display screen frame and follow bend the crotch that extends in the main part, tongue point portion stretch out with the crotch butt, the crotch be provided with the second direction inclined plane that first direction inclined plane matches.

According to the utility model discloses an aspect, the one end of power pack is passed through lock fast detachably lock in on the display screen frame, the other end is realized through supporting reference column and locating hole the power pack with the location of display screen frame, the reference column with arbitrary one in the locating hole set up in on the power pack, another person sets up on the display screen frame.

According to the above technical scheme, the utility model provides a pair of display screen has following advantage and positive effect at least:

the power supply box is provided with the quick lock capable of being quickly disassembled, the lock rod is pushed to move by pressing the locking button of the quick lock, and the lock bolt is contacted from different positions of the slope on the lock rod so as to drive the lock bolt to extend out or retract; when the spring bolt stretches out, the spring bolt is in locking fit with the locking portion, the power supply box is installed and fixed on the frame, when the spring bolt retracts, the spring bolt is separated from the locking portion, the locking state is relieved, the power supply box can be separated from the frame, the power supply box can be taken out, and the power supply box can be maintained quickly. In the normal use process of the display screen, the power box needs to be frequently disassembled for maintenance, and the quick lock only needs to disassemble and assemble the power box by one step, so that quick maintenance is realized. And, above-mentioned power pack modularized design, with the help of this quick lock structure, can realize power pack's quick replacement when the activity field is maintained.

Drawings

Fig. 1 is a schematic structural diagram of a display screen in an embodiment of the present invention.

Fig. 2 is a schematic front view of the power supply box according to the embodiment of the present invention.

Fig. 3 is a schematic back view of the power supply box according to the embodiment of the present invention.

Fig. 4 is a schematic diagram of the power supply box of fig. 1 after being detached from the display screen frame.

Fig. 5 is a schematic structural diagram of the locking portion in the embodiment of the present invention.

Fig. 6 is a schematic diagram of the embodiment of the present invention in which the quick lock is in a locked state.

Fig. 7 is a schematic view of the embodiment of the present invention in which the quick lock is in the release state.

Fig. 8 is an exploded view of the quick lock according to the embodiment of the present invention.

Fig. 9 is a schematic structural view of the locking tongue in the embodiment of the present invention.

Fig. 10 is a schematic view illustrating inward retraction of the latch bolt according to an embodiment of the present invention.

Fig. 11 is a schematic view of the embodiment of the present invention in which the latch tongue extends outward.

The reference numerals are explained below:

200-display screen frame, 201-vertical beam,

100-a power supply box,

1-box body, 11-positioning column, 12-locking part, 121-main body, 122-hook, 123-second guide inclined plane, 101-lightening hole,

3-quick lock, 31-lock seat, 301-opening, 311-upper seat body, 312-lower cover plate, 313-mounting hole, 314-accommodating groove, 315-via hole, 316-groove, 32-locking button, 321-locking cap, 3211-convex strip, 3212-pin hole, 322-locking rod, 3221-guide hole, 3222-slope surface, 323-first elastic element, 324-pin, 34-locking tongue, 341-locking hole, 342-tongue tip part, 343-notch, 344-first guide slope, 35-positioning pin and 36-second elastic element.

Detailed Description

Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

This embodiment provides a display screen, through be provided with the quick lock that can dismantle fast on the power pack, through pressing the quick lock button, the power pack pops out, can take out the power pack, realizes maintaining the power pack fast. When the power supply box is installed, the power supply box is pressed down with force, and the lock is automatically locked under the action of the quick lock. In the normal use process of display screen, the power pack is maintained and needs often to be dismantled, and this kind of quick lock only needs one step of dismouting power pack, has realized quick maintenance.

Referring to fig. 1, fig. 1 shows a specific structure of a display screen provided in this embodiment, and the display screen mainly includes a display screen frame 200 and a power supply box 100. Wherein, be equipped with quick lock 3 on the power pack 100, can realize through quick lock 3 with the fast loading and unloading of display screen frame 200, make things convenient for the maintenance replacement of power pack 100.

Referring to fig. 2 and fig. 3 together, fig. 2 is a front schematic view of the power supply box 100, and fig. 3 is a back schematic view of the power supply box 100.

The box body 1 of the power supply box 100 is a hollow shell structure with an approximately strip-shaped outline. The quick lock 3 is located at one end of the case 1 in the length direction. As shown in fig. 3, the back of the power supply box 100 is provided with a plurality of protruding positioning posts 11, and the positioning posts 11 are used to assist the locking of the quick lock 3. The positioning columns 11 are arranged at intervals around the periphery of the box body 1, and are mainly distributed on two sides of the box body 1 in the width direction. When the power supply box 100 is installed, the positioning columns 11 can be correspondingly inserted into the positioning through holes matched on the display screen frame 200, so that the power supply box 100 is positioned, and the power supply box 100 is prevented from moving back and forth and left and right relative to the frame. In other embodiments, without being limited to the above manner, the positioning posts 11 may be reversely disposed on the display screen frame 200, and the corresponding positioning holes may be disposed on the box body 1, so as to achieve positioning between the power supply box and the frame.

Referring to fig. 4, fig. 4 is a schematic diagram of the power supply box 100 of fig. 1 after being detached from the display screen frame 200. The display screen frame 200 is a rectangular frame structure formed by combining a plurality of cross beams and vertical beams. The vertical beam 201 at the middle position of the display screen frame 200 provides an installation space for the power supply box 100, and the upper part of the vertical beam 201 is provided with a locking part 12 for matching with the quick lock 3 of the power supply box 100.

Referring to fig. 5, the locking portion 12 is a substantially rectangular plate, and the locking portion 12 includes a main body 121 vertically connected to the vertical beam and a hook 122 extending from the main body 121. The distal end of the hook 122 is formed with an inclined second guide slope 123. The angle between the hook 122 and the body 121 is approximately 90 degrees so that the hook 122 extends approximately parallel to the mullion. In use, the hook 122 is used to abut against a latch tongue 34 (the specific structure of the latch tongue 34 will be described in fig. 9) extending from the quick lock 3, so as to limit the up and down movement of the power supply box 100 as a whole relative to the display screen frame 200, and to achieve the complete locking of the power supply box 100 on the frame together with the positioning column 11.

In the present embodiment, the locking portion 12 is made of metal, and is strong and durable, and the weight is a little heavier, therefore, the present embodiment adopts the lightening hole 101 opened on the locking portion 12 to lighten the self weight of the locking portion 12. Furthermore, the locking part 12 is detachably disposed on the display frame 200 by means of bolt connection, so as to be suitable for more display products. In other embodiments, the locking portion 12 may be made of plastic or other materials, so as to have a light weight.

Referring to fig. 6 to 8 together, fig. 6 is a schematic view of the quick lock 3 in a locked state, fig. 7 is a schematic view of the quick lock 3 in an unlocked state, and fig. 8 is an exploded schematic view of the quick lock 3.

As shown in fig. 6 and 7, the quick lock 3 includes a lock base 31, and a lock button 32 and a lock tongue 34 provided on the lock base 31.

The locking base 31 is used for being fixed on the box body 1 and plays a role of supporting parts assembled on the locking base. In the embodiment, the lock seat 31 is a rectangular block structure, a circular mounting hole 313 is formed at the top of the lock seat 31, and a receiving groove 314 vertically communicating with the mounting hole 313 is formed on a side wall of the lock seat 31. The mounting hole 313 is used for mounting the locking button 32, and the receiving groove 314 is used for receiving the locking tongue 34.

When in use, the bolt 34 extends out and is matched with the locking part 12 on the display screen frame 200 to be in a locking state by pressing the power supply box 100; by depressing the lock button 32, the latch tongue 34 is activated, causing the latch tongue 34 to retract inwardly, out of the locking portion 12, and into an unlocked state.

As shown in fig. 8, the lock holder 31 includes an upper holder body 311 and a lower cover plate 312 that can be separated vertically. The thickness of the upper seat body 311 is larger, a groove 316 is formed on the lower surface of the upper seat body 311 in a recessed manner, and the groove 316 penetrates through the right side of the upper seat body to form a right-side open structure (the left side of the upper seat body is not penetrated by the groove 316). Bolt holes are oppositely arranged between the upper base 311 and the lower cover 312, the lower cover 312 is fastened on the upper base 311 to form a whole through screw connection, and the gap between the lower cover 312 and the groove 316 is the receiving groove 314. The right opening 301 of the receiving groove 314 faces the locking portion. Meanwhile, the mounting hole 313 penetrates the upper base 311, and the lower cover 312 has a through hole 315 opposite to the mounting hole 313.

As shown in fig. 8, the locking button 32 includes a locking cap 321, a locking lever 322, a first elastic member 323, and a pin 324.

Wherein, lock cap 321 is wedge-shaped block structure, and lock cap 321 has a plurality of sand grips 3211 of arranging at intervals on the surface, makes things convenient for the staff to press.

The locking rod 322 is vertically connected to the locking cap 321, and the locking rod and the locking cap are detachably connected. Specifically, the upper end of the locking bar 322 may extend into the interior of the locking cap 321. A pin hole 3212 which extends along the horizontal direction and is communicated with the inside is formed in one side of the lock cap 321, the size of the pin hole 3212 is matched with that of the pin 324, and the pin hole 3212 can be penetrated by the pin 324; the upper end of the locking lever 322 is also provided with a hole through which the pin 324 passes.

In addition, the locking rod 322 is provided with a guide hole 3221 extending along the self axial direction, and the guide hole 3221 is a waist-shaped hole. The quick lock 3 further comprises a detent pin 35. The two positioning pins 35 are provided, the two positioning pins 35 are located on two opposite sides of the lock seat 31, and the positioning pins 35 penetrate through the outside of the lock seat 31 and extend into the guiding holes 3221 to provide a guiding function for the movement of the lock lever 322.

The first elastic element 323 may be a spring or other elastic rubber or silicone element. When the locking button 32 is installed, the first elastic member 323 is fitted over the locking bar 322. The upper end of the first elastic member 323 abuts the lock cap 321, and the lower end of the first elastic member 323 contacts the lock lever 322. The sleeved first elastic member 323 is inserted into the mounting hole 313 along with the lock lever 322, a portion of the first elastic member 323 abuts against an inner wall of the mounting hole 313, and the lock lever 322 can move up and down in the mounting hole 313 by an external force. Since the outer dimension of the locking cap 321 is larger than the dimension of the mounting hole 313, the locking cap 321 is exposed out of the mounting hole 313.

The latch tongue 34 is horizontally disposed in the receiving groove 314, is movable in the receiving groove 314, and slides out through the opening 301. The direction of movement of the latch tongue 34 is perpendicular to the direction of movement of the lock lever 322.

Referring to fig. 9, the latch 34 is a plate-shaped structure. A rectangular locking hole 341 is formed in the middle of the lock tongue 34, the locking hole 341 is opposite to the lock rod 322 in the up-down direction, and the size of the locking hole 341 is larger than the cross-sectional size of the lock rod 322, so that the lock rod 322 can conveniently pass through the locking hole 341. The end of the latch tongue 34 extending out of the opening 301 of the lock base 31 is a tongue portion 342, and the cross-sectional area of the tongue portion 342 is gradually reduced in the extending direction thereof and gradually reduced.

In this embodiment, the quick lock 3 further comprises a second elastic member 36 engaged with the latch tongue 34. The second elastic member 36 may be a spring or other elastic rubber or silicone member, and there are two in total. Correspondingly, two notches 343 are provided at intervals on the end (left end) of the latch tongue 34 located inside the receiving groove 314. The second elastic member 36 is located in the receiving groove 314 and is further inward with respect to the latch tongue 34. One end of the second elastic element 36 extends into the notch 343 to connect or abut against the latch tongue 34. The second elastic member 36 extends and contracts in the same direction as the movement direction of the latch 34 to provide an elastic restoring force for the movement of the latch 34.

As shown in fig. 9, the front end of the tongue portion 342 is formed with an inclined first guide slope 344. The first guide slope 344 and the second guide slope 123 of the locking part are parallel to each other, and both slopes can be contacted in a certain state. Referring to fig. 6, when the power supply box 100 is installed, when the power supply box 100 is pressed toward the display screen frame 200, the first guiding inclined plane 344 of the tongue portion 342 slides down along the second guiding inclined plane 123 of the hook 122, and in the process of sliding down, the second guiding inclined plane 123 of the hook 122 applies force to the first guiding inclined plane 344 of the tongue portion 342, so that the tongue portion 342 of the latch 34 slightly shrinks into the box body 1, and when the tongue portion 342 slides over the second guiding inclined plane 123 of the hook 122 and is separated from the second guiding inclined plane 123, the latch 34 is pushed out by the second elastic member 36 to abut against the hook 122.

In use, the locking rod 322 moves up and down along the mounting hole 313, and the lower end of the locking rod 322 extends into the locking hole 341 and pushes the locking tongue 34, so that the locking tongue 34 extends to the outside of the lock holder 31 or retracts inwards.

In this embodiment, the quick lock 3 works by pressing the locking cap 321, and the locking rod 322 moves downwards and pushes the locking tongue 34 to retract inwards to disengage from the locking part 12; when the locking cap 321 is released, the locking bar 322 moves upward by the elastic restoring force of the first elastic member 323, so that the locking tongue 34 extends outward, thereby achieving locking. The working principle is as follows:

referring to fig. 10 in combination with fig. 8, a slope 3222 is formed at a lower end of the locking rod 322 away from the locking cap 321, and the slope 3222 gradually inclines outward in an axial direction relative to the locking rod 322, so that the lower end of the locking rod 322 is tapered with a gradually decreasing diameter. It should be noted that, outward refers to the direction in which the latch tongue 34 protrudes outward from the outside of the lock holder 31. Referring to the lock seat 31, a slope 3222 is provided on a side of the lock rod 322 facing away from the opening 301.

Based on the direction of the view in fig. 10, the locking cap 321 is pressed down, the locking rod 322 moves downwards to pass through the locking hole 341 of the locking tongue 34, and the lower portion of the slope 3222 of the locking rod 322 abuts against the left side wall of the locking hole 341; the lock rod 322 continues to move downwards, the slope 3222 pushes the latch tongue 34 contacting with the slope 3222 to slide upwards along the slope 3222, so that the latch tongue 34 moves leftwards, the latch tongue 34 retracts towards the inside of the receiving groove 314, the latch tongue 34 moves away from the locking portion 12, the locking state is released, and at this time, the second elastic element 36 is in a compressed state. The above-mentioned operation of pressing the locking cap 321 can separate the latch tongue 34 from the locking part 12, and the power supply box 100 is in a movable state, so that the power supply box 100 is suitable for the occasion of detaching the power supply box 100 and the occasion of initially installing the power supply box 100.

Referring to fig. 11, when the locking cap 321 is released, the locking rod 322 moves upwards under the elastic restoring force of the first elastic member 323, the locking tongue 34 moves rightwards along the slope 3222 in the opposite direction, and meanwhile, the second elastic member 36, which is compressed before, acts to provide a rightwards acting force to the locking tongue 34, and finally, the locking tongue 34 extends rightwards out of the locking seat 31 until abutting against the locking portion 12, so as to achieve locking.

In this embodiment, the locking cap 321 is pressed to push the locking tongue 34 to retract inwards, and the locking tongue is in a released state; the locking cap 321 is loosened, and the locking bolt 34 extends outwards to realize locking.

In other embodiments, not limited to the above, the opposite operation can be achieved by adjusting the corresponding structures, such as the latch tongue 34 and the latch rod 322. Specifically, the slope 3222 is disposed on a side of the locking rod 322 opposite to the opening 301 of the receiving slot 314. When the locking button 32 is pressed, the locking rod 322 moves downwards to the first position, the slope 3222 pushes the locking tongue 34 to extend outwards to abut against the locking portion 12, the locking cap 321 is released, and the locking rod 322 is kept at the first position, so that locking is achieved. When the lock button is pressed again, the lock lever 322 is released from the first position, and the lock lever 322 is moved up to the second position by the elastic restoring force of the first elastic member 323, so that the latch 34 is reversely retracted and the locked state is released. Specifically, the structure for holding the lock rod 322 at the first position and the second position is various, including but not limited to, providing a stopper such as a snap or a ball at the first position and the second position, so that the stopper is engaged with the lock rod 322 at the first position or the second position, and further the lock rod 322 is held at the first position or the second position. Alternatively, the locking lever 322 is maintained at the first position or the second position by slightly changing the matching structure of the positioning pin 35 and the guiding hole 3221, such as: circular limiting grooves are respectively arranged at two ends of the guide hole 3221, and the end part of the positioning pin 35 is provided with an elastic ball, so that when the locking rod 322 is pressed down by the locking button 32, the elastic ball at the tail end of the positioning pin 35 can be bounced into the circular limiting groove at the upper end of the guide hole 3221, so that the locking rod 322 is kept in a downward pressing state, and the locking tongue 34 is tightly abutted to the locking part 12, so that the power supply box is locked; when the locking button 32 is pressed again, the locking rod 322 is bounced by the first elastic member to move upward, and meanwhile, the marble at the end of the positioning pin 35 also disengages from the circular limiting groove at the upper end of the guiding hole 3221 and slides along with the guiding hole 3221 to the circular limiting groove at the lower end of the guiding hole 3221, at this time, the locking rod 322 is kept in a lifted state, and the locking tongue 34 is also lifted by the locking rod 322 and pushed back to the accommodating groove 314 of the locking seat, thereby unlocking the power supply box.

To sum up, the utility model discloses use a neotype quick lock 3, be applicable to the LED display screen industry, realize the quick assembly disassembly of power pack 100, maintain the use fast. The power supply box 100 can be simply and quickly disassembled and assembled only by one action, and the power supply box can be applied to the activity field of the LED display screen to emergently process abnormal display caused by the power supply box 100 and save time.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terms used are words of description and illustration, rather than words of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalence of such metes and bounds are therefore intended to be embraced by the appended claims.

Claims (9)

1. A display screen, comprising:

the display screen frame is provided with a locking part;

the power supply box comprises a box body and a quick lock arranged on the box body; the quick lock comprises a lock seat, a locking button and a lock tongue, the lock seat is fixed in the box body, the lock seat is provided with a mounting hole and an accommodating groove communicated with the mounting hole, and the lock tongue is accommodated in the accommodating groove and is in sliding fit with the accommodating groove; locking button is provided with the locking lever along pressing the direction, the locking lever run through the mounting hole and with the mounting hole interval sets up, the locking lever cover is equipped with first elastic component, the one end and the lock seat of first elastic component are contradicted, the other end with locking button or locking lever butt, the locking lever is kept away from locking button's one end and is domatic for the slope, the spring bolt is provided with the lockhole, domatic stretch into in the lockhole and with lockhole side butt, the accepting groove have towards the opening of locking portion, the spring bolt is in stretch out under the domatic promotion the opening, until with locking portion counterbalance, perhaps shrink extremely in the opening, until with locking portion breaks away from.

2. The display screen of claim 1, wherein the ramp is disposed on a side of the locking bar facing away from the opening.

3. The display screen of claim 2, wherein the ramp is inclined relative to an axial direction of the locking bar such that an end of the locking bar distal from the locking button is tapered with a tapered diameter.

4. The display screen of claim 2, wherein the quick lock further comprises a second elastic member, the second elastic member is located in the accommodating groove, the second elastic member is connected with or abutted against the side surface of the lock tongue, and the extension direction of the second elastic member is consistent with the moving direction of the lock tongue.

5. The display screen of claim 2, wherein the locking bar is provided with a guide hole extending along the self axial direction; the quick lock further comprises a positioning pin, and the positioning pin is fixed on the lock seat and extends into the guide hole.

6. The display screen of claim 1, wherein the ramp is disposed on a side of the locking bar facing the opening.

7. The display screen of claim 1, wherein the latch tongue is of a plate-shaped structure, one end of the latch tongue, which can extend out of the opening, is a tongue tip portion, and the tongue tip portion is provided with a first guide inclined surface.

8. The display screen of claim 7, wherein the locking portion comprises a main body detachably connected to the display screen frame and a hook bent and extending from the main body, the tongue tip portion extends out to abut against the hook, and the hook is provided with a second guide inclined surface matched with the first guide inclined surface.

9. The display screen of any one of claims 1 to 8, wherein one end of the power box is detachably locked to the display screen frame through the quick lock, and the other end of the power box is positioned with the display screen frame through a positioning column and a positioning hole which are matched with each other, wherein one of the positioning column and the positioning hole is arranged on the power box, and the other is arranged on the display screen frame.

Images