CN211289316U

CN211289316U - Locking structure and display screen with same

Info

Publication number: CN211289316U
Application number: CN201922226863.1U
Authority: CN
Inventors: 李炳锋; 袁天浩
Original assignee: Shenzhen Leyard Optoelectronic Co Ltd
Current assignee: Shenzhen Leyard Optoelectronic Co Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-08-18
Anticipated expiration: 2029-12-11

Abstract

The utility model provides a locking structure and have its display screen, locking structure is used for locking the display screen module on the box, and locking structure includes: the first stopping part is arranged on the box body; the connecting component is arranged on the display screen module; the knob component is connected with the connecting component and is rotationally arranged relative to the connecting component, the knob component comprises a knob main body, the knob main body comprises a second stopping portion, the second stopping portion is located on one side, away from the display screen module, of the first stopping portion, and the display screen module is locked with the box body when the second stopping portion is pressed on the first stopping portion. The utility model discloses a locking structure has solved the problem that the display screen module on the display screen among the prior art drops easily.

Description

Locking structure and display screen with same

Technical Field

The utility model relates to a display screen technical field particularly, relates to a locking structure and have its display screen.

Background

The connection mode of current LED display screen module and box adopts magnet to adsorb to be connected, and LED display device includes mounting bracket and LED video picture module usually, and magnetism is inhaled the mounting and is set up respectively on LED video picture module and mounting bracket, and LED video picture module is inhaled the mounting through magnetism and is connected with mounting bracket detachably to in dismantle the maintenance to LED video picture module.

However, in the use process of the LED display device, the magnetic attraction fixing piece is easy to lose efficacy, so that the LED imaging module falls off from the mounting frame, the LED imaging module is damaged, people are injured by smashing due to the falling of the LED imaging module from the mounting frame, other equipment is damaged, and the service life and the use safety of the LED display device are reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a locking structure and have its display screen to solve the problem that the display screen module on the display screen among the prior art drops easily.

In order to achieve the above object, according to the utility model discloses an aspect provides a locking structure for lock the display screen module on the box, locking structure includes: the first stopping part is arranged on the box body; the connecting component is arranged on the display screen module; the knob component is connected with the connecting component and is rotationally arranged relative to the connecting component, the knob component comprises a knob main body, the knob main body comprises a second stopping portion, the second stopping portion is located on one side, away from the display screen module, of the first stopping portion, and the display screen module is locked with the box body when the second stopping portion is pressed on the first stopping portion.

Further, the knob component has a first rotational position that the second stop is located above the first stop; the knob component is movably arranged relative to the connecting component, and when the knob component is positioned at a first rotating position, the knob component is provided with a first moving position and a second moving position, wherein the second stopping part is pressed on the first stopping part, and the second stopping part is separated from the first stopping part; the knob component is arranged at a first moving position, and the second clamping part is clamped with the first clamping part so as to enable the knob component to be in a locking state with the connecting component; when the knob component is at the second moving position, the second clamping part is separated from the first clamping part, so that the knob component is in a rotatable state relative to the connecting component.

Furthermore, the first clamping portion is a first protruding structure, and the second clamping portion is a first clamping hole.

Further, the knob component has a second rotation position in which the second stopper is located at one side of the first stopper, and when the knob component is in the second rotation position, the knob component has a third movement position and a fourth movement position; the connecting component is provided with a third clamping part, the second clamping part is matched with the third clamping part, and when the knob component is at a third moving position, the second clamping part is clamped with the third clamping part so as to enable the knob component to be in a locking state of being locked with the connecting component; when the knob component is at the fourth moving position, the second clamping part is separated from the third clamping part, so that the knob component is in a rotatable state relative to the connecting component.

Furthermore, the third clamping part is a second protruding structure, and the second clamping part is a first clamping hole.

Further, the third clamping portion and the first clamping portion are arranged at an interval of 90 degrees around the rotation direction of the knob component.

Further, the locking structure further comprises: and the limiting component is connected with the connecting component and arranged between the connecting component and the knob component so as to limit the knob component.

Further, the connecting member includes a connecting hole; the limiting part is provided with an avoiding channel which is arranged opposite to the connecting hole; the knob component comprises a connecting rod, the connecting rod is provided with a stopping step, the connecting rod is inserted into the avoiding channel and the connecting hole, and the stopping step is located in the connecting hole and is abutted to the limiting component in the process that the connecting rod moves relative to the connecting component.

Furthermore, the connecting rod comprises a first rod section and a second rod section, one end of the second rod section is connected with the first rod section, the other end of the second rod section is connected with the knob main body, and the first rod section is positioned on one side of the limiting component far away from the knob main body; the length of the second rod section is greater than the thickness of the limiting part along the extending direction of the connecting rod, so that the connecting rod can be movably arranged relative to the connecting part; the diameter of the first pole segment is greater than the diameter of the second pole segment such that a stop step is formed between the first pole segment and the second pole segment.

Further, the limiting part comprises a side wall, a first end face and a second end face, the first end face and the second end face are arranged oppositely along the extending direction of the connecting hole, the avoidance channel extends to the second end face from the first end face and extends to the side wall to form an avoidance opening, and therefore the connecting rod is arranged in the avoidance channel through the avoidance opening.

Furthermore, the connecting part is provided with a first fastening hole, the limiting part is provided with a second fastening hole, and the limiting part is fixedly connected with the connecting part through a fastening piece arranged in the first fastening hole and the second fastening hole.

Further, the knob part includes an anti-slip portion provided on the knob body to play an anti-slip role when the knob part is rotated.

According to the utility model discloses an on the other hand provides a display screen, including box, display screen module and locking structure, locking structure is used for locking the display screen module on the box, and wherein, locking structure is foretell locking structure.

Further, the first blocking portion of the locking structure is a lug structure or a recess.

The utility model discloses a locking structure is used for locking the display screen module on the box, and locking structure includes first backstop portion, adapting unit and knob part, and first backstop portion sets up on the box, and adapting unit sets up on the display screen module, and knob part is connected with adapting unit and relative adapting unit can rotationally set up; the locking structure enables the second stopping part of the knob component to be pressed on the first stopping part by rotating the knob component so as to enable the first stopping part to be abutted against the second stopping part, so that the locking of the display screen module and the box body is realized, the connection is stable, and the problem that the display screen module on the display screen is easy to fall off is solved; moreover, the locking structure is simple in structure, easy to process and convenient to disassemble and assemble.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of an embodiment of a display screen according to the present invention;

FIG. 2 shows a close-up view at A of the display screen of FIG. 1;

fig. 3 shows a schematic view of a knob part of a locking structure according to the present invention;

fig. 4 is a schematic structural diagram of a viewing angle of a display screen module according to the present invention;

FIG. 5 is a partial enlarged view of the display screen module shown in FIG. 4 at B;

fig. 6 shows a schematic structural view of a limiting part of the locking structure according to the present invention;

fig. 7 is a schematic structural diagram of another viewing angle of the display screen module according to the present invention;

fig. 8 shows a partial enlarged view of the display screen module in fig. 7 at C.

Wherein the figures include the following reference numerals:

10. a display screen module; 20. a box body; 21. a first stopper portion; 30. a connecting member; 31. a first engaging portion; 32. connecting holes; 33. a third clamping part; 34. a first fastening hole; 40. a knob member; 41. a knob body; 411. a second stopper portion; 412. a second engaging portion; 42. a connecting rod; 421. a first pole segment; 422. a second pole segment; 423. a stopping step; 45. an anti-slip portion; 50. a limiting component; 51. avoiding the channel; 52. a side wall; 53. a first end face; 54. a second end face; 55. avoiding the opening; 56. a second fastening hole.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The utility model provides a locking structure, please refer to fig. 1 to fig. 8, locking structure is used for locking display screen module 10 on box 20, and locking structure includes: a first stopper portion 21 provided on the case 20; the connecting component 30 is arranged on the display screen module 10; the knob component 40, the knob component 40 is connected with the connecting component 30 and is rotationally arranged relative to the connecting component 30, the knob component 40 includes a knob main body 41, the knob main body 41 includes a second stopping portion 411, the second stopping portion 411 is located on one side of the first stopping portion 21 far away from the display screen module 10, so that the display screen module 10 is locked with the box body 20 when the second stopping portion 411 is pressed on the first stopping portion 21.

The utility model discloses a locking structure is used for locking display screen module 10 on box 20, and locking structure includes first backstop 21, adapting unit 30 and knob part 40, and first backstop 21 sets up on box 20, and adapting unit 30 sets up on display screen module 10, and knob part 40 is connected with adapting unit 30 and relative adapting unit 30 can rotationally set up; according to the locking structure, the knob component 40 is rotated, so that the second stopping part 411 of the knob component 40 is pressed on the first stopping part 21, the first stopping part 21 is abutted against the second stopping part 411, the locking of the display screen module 10 and the box body 20 is further realized, the connection is stable, and the problem that the display screen module on the display screen is easy to fall off is solved; moreover, the locking structure is simple in structure, easy to process and convenient to disassemble and assemble.

In specific implementation, the connecting member 30 is integrally formed with the display module 10.

In the present embodiment, the knob member 40 has a first rotation position where the second stopper 411 is located above the first stopper 21; the knob member 40 is movably disposed relative to the connecting member 30, and when the knob member 40 is at the first rotation position, the knob member 40 has a first moving position where the second stopping portion 411 is pressed against the first stopping portion 21 and a second moving position where the second stopping portion 411 is separated from the first stopping portion 21; wherein, the connecting component 30 is provided with a first clamping portion 31, the knob body 41 is provided with a second clamping portion 412, the second clamping portion 412 is matched with the first clamping portion 31, when the knob component 40 is at the first moving position, the second clamping portion 412 is clamped with the first clamping portion 31, so that the knob component 40 is in a locking state locked with the connecting component 30; when the knob member 40 is at the second moving position, the second engaging portion 412 is separated from the first engaging portion 31, so that the knob member 40 is in a rotatable state relative to the connecting member 30. The first moving position and the second moving position are arranged at intervals along the rotating center line of the knob component.

Specifically, the knob member 40 is movably disposed along the extending direction of the rotation center line thereof, and during the process of rotating the knob member 40, when the knob member 40 is rotated to the first latching portion 31 of the connecting member 30, the second latching portion 412 of the knob member 40 is latched with the first latching portion 31 by the movement of the knob member 40, and at this time, the second stopping portion 411 is pressed on the first stopping portion 21, such an arrangement further enhances the locking effect of the locking structure.

Specifically, in order to release the locked state of the knob member 40 and the connection member 30, the knob member 40 is pulled in a direction away from the connection member 30 such that the second catching portion 412 is separated from the first catching portion 31, and then the knob member 40 is rotated.

In specific implementation, the first engaging portion 31 is a first protrusion structure, and the second engaging portion 412 is a first engaging hole.

In the present embodiment, the knob member 40 has a second rotation position where the second stopper 411 is located at the first stopper 21 side; the knob member 40 is movably disposed with respect to the connecting member 30, and when the knob member 40 is at the second rotational position, the knob member 40 has a third moving position and a fourth moving position; the connecting member 30 is provided with a third engaging portion 33, the second engaging portion 412 is adapted to the third engaging portion 33, and when the knob member 40 is at the third moving position, the second engaging portion 412 is engaged with the third engaging portion 33, so that the knob member 40 is in a locking state with the connecting member 30; when the knob member 40 is at the fourth moving position, the second engaging portion 412 is separated from the third engaging portion 33, so that the knob member 40 is in a rotatable state with respect to the connecting member 30. The third moving position and the fourth moving position are arranged at intervals along the rotating center line of the knob component.

Specifically, the knob member 40 is movably disposed along an extending direction of a rotation center line thereof, and when the knob member 40 is rotated to the third engaging portion 33 of the connecting member 30 during the rotation of the knob member 40, the second engaging portion 412 of the knob member 40 is engaged with the third engaging portion 33 by the movement of the knob member 40, so that the knob member 40 is locked with the connecting member 30; to release the locked state of the knob member 40 and the coupling member 30, the knob member 40 is pulled in a direction away from the coupling member 30 such that the second catching portion 412 is separated from the first catching portion 31, and then the knob member 40 is rotated.

In specific implementation, the third engaging portion 33 is a second protrusion structure, and the second engaging portion 412 is a first engaging hole.

Preferably, the third catching portion 33 is disposed at an interval of 90 degrees from the first catching portion 31 around the rotation direction of the knob member 40. The arrangement is convenient for operators to operate and is relatively beautiful.

In order to limit the moving range of the knob member 40 in the extending direction along the rotation center line of the knob member 40, the locking structure further includes a stopper member 50, and the stopper member 50 is connected with the connecting member 30 and disposed between the connecting member 30 and the knob member 40 to limit the knob member 40.

In particular, the connecting member 30 includes a connecting hole 32; the stopper member 50 has an avoidance passage 51, and the avoidance passage 51 is provided opposite to the connection hole 32; the knob member 40 includes a connecting rod 42, the connecting rod 42 has a stopping step 423, the connecting rod 42 is inserted into the escape passage 51 and the connecting hole 32, and the stopping step 423 is located in the connecting hole 32 to abut against the position limiting member 50 during the movement of the connecting rod 42 relative to the connecting member 30.

In specific implementation, the connecting rod 42 includes a first rod segment 421 and a second rod segment 422, one end of the second rod segment 422 is connected to the first rod segment 421, the other end of the second rod segment 422 is connected to the knob body 41, and the first rod segment 421 is located on one side of the limiting component 50 away from the knob body 41; the length of the second rod segment 422 is greater than the thickness of the position-limiting member 50 in the extending direction of the connecting rod 42, so that the connecting rod 42 is movably disposed with respect to the connecting member 30; the diameter of the first rod segment 421 is larger than the diameter of the second rod segment 422, so that a stop step 423 is formed between the first rod segment 421 and the second rod segment 422.

In the present embodiment, the limiting member 50 includes a side wall 52, a first end surface 53 and a second end surface 54, the first end surface 53 and the second end surface 54 are oppositely disposed along the extending direction of the connecting hole 32, the avoiding channel 51 extends from the first end surface 53 to the second end surface 54, the avoiding channel 51 extends to the side wall 52 to form an avoiding opening 55, so that the connecting rod 42 is disposed in the avoiding channel 51 through the avoiding opening 55. This arrangement enables the installation of the restricting member 50.

In order to realize the connection between the limiting part 50 and the connecting part 30, the connecting part 30 is provided with a first fastening hole 34, the limiting part 50 is provided with a second fastening hole 56, and the limiting part 50 is fixedly connected with the connecting part 30 through fastening members arranged in the first fastening hole 34 and the second fastening hole 56.

In the present embodiment, the knob part 40 includes the anti-slip portion 45, and the anti-slip portion 45 is provided on the knob body 41 to play an anti-slip role when the knob part 40 is rotated. Such an arrangement facilitates operation by an operator.

The utility model discloses a locking structure has given the neotype connected mode of display screen module and box, and this connected mode's structure includes: the display screen module comprises a bottom shell (namely the display screen module), a box body, a knob (namely a knob component 40) and a pressing plate (namely a limiting component 50). The edge of box is provided with lug or breach structure (being first backstop portion 21), and lug and breach structure all have the backstop terminal surface, and the display screen module is installed in the box, is provided with the knob on the drain pan, and knob unidirectional rotation for with the backstop terminal surface cooperation of lug and/or breach structure, in order to play the limiting displacement to the display screen module.

Specifically, the display screen module is the LED display screen module.

This locking structure design has the knob, and the knob design has second backstop portion, anti-skidding decorative pattern (promptly antiskid portion), reference column (promptly first pole section), circular recess (promptly second pole section), knob locating hole (promptly the second card establishes the portion).

The bottom shell is provided with a connecting part, the connecting part is provided with a positioning hole (namely a connecting hole) for placing a positioning column, the diameter of the positioning hole is slightly larger than that of the positioning column, a screw hole (namely a first fastening hole) at the position of 2 is designed, and the convex hull is rotated by 90 degrees (namely a first clamping part and a third clamping part).

This locking structure design has the clamp plate (being spacing part), designs U type breach (dodging the passageway promptly) in the middle of the clamp plate, and U type breach diameter slightly is greater than circular recess, is less than the reference column, and the design has 2 screw fixation holes (being the second fastening hole) on the clamp plate.

The structure of the connection mode of the locking structure comprises: the connecting component, the box, the knob, the clamp plate. The connecting part comprises a positioning hole for installing and placing a positioning column, the diameter of the positioning hole is slightly larger than that of the positioning column, 2 screw holes are designed, and two positioning convex hulls are arranged by rotating 90 degrees. The design U type breach in the middle of the clamp plate, U type breach diameter slightly is greater than circular recess, is less than the reference column, and the design has 2 screw fixing holes on the clamp plate. The knob is provided with a second stopping part, an anti-slip pattern, a knob positioning hole, a circular groove and a positioning column. The U-shaped notch of the pressing plate is inserted into the circular groove, the height of the circular groove is slightly larger than the thickness of the pressing plate, the positioning column is placed in the positioning hole, and the pressing plate is fixed on the connecting component through 2 screws. However, the positioning convex hull on the connecting part is matched with the positioning hole of the knob, so that the knob can be screwed for 90 degrees. When the display screen module is installed, an operator only needs to align the module, properly lift the module and attach the module to the box body, rotate the knob by 90 degrees, match the second stopping part with the lug of the box body, match the knob positioning hole with the positioning convex hull, and easily fix the module to the box body.

The utility model discloses a key innovation point includes:

1. the structure of the connection mode comprises: the connecting part, the box, knob part, clamp plate.

2. The edge of the box body is provided with a lug and/or a notch structure.

3. The lug and notch structures each have a stop end surface.

4. A connecting part and a knob part are arranged on the bottom shell of the display screen module.

5. The knob component rotates in a single direction to limit the display screen module.

The utility model discloses a locking structure's simple structure, easily processing, easy dismounting. Through locking structure and box, be favorable to the stable connection between display screen module and the box.

The utility model also provides a display screen, including box 20, display screen module 10 and locking structure, locking structure is used for locking display screen module 10 on box 20, and wherein, locking structure is foretell locking structure.

In the present embodiment, the first blocking portion 21 of the locking structure is a lug structure or a recess. The lug structure and the recess have stop end surfaces, so that the second stop portion 411 is pressed on the stop end surfaces.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A locking structure for locking a display screen module (10) on a box body (20), characterized in that the locking structure comprises:

a first stopper portion (21) provided on the case (20);

the connecting component (30) is arranged on the display screen module (10);

knob part (40), knob part (40) with connecting part (30) are connected and relative connecting part (30) rotationally sets up, knob part (40) include knob main part (41), knob main part (41) include second backstop portion (411), second backstop portion (411) are located first backstop portion (21) is kept away from one side of display screen module (10), in order when second backstop portion (411) are pressed and are established on first backstop portion (21), make display screen module (10) with box (20) locking.

2. Locking arrangement according to claim 1, characterized in that the knob component (40) has a first rotational position with the second stop (411) above the first stop (21); the knob component (40) is movably arranged relative to the connecting component (30), when the knob component (40) is in the first rotating position, the knob component (40) has a first moving position enabling the second stopping portion (411) to be pressed on the first stopping portion (21) and a second moving position enabling the second stopping portion (411) to be separated from the first stopping portion (21);

the connecting component (30) is provided with a first clamping part (31), the knob body (41) is provided with a second clamping part (412), the second clamping part (412) is matched with the first clamping part (31), and when the knob component (40) is located at the first moving position, the second clamping part (412) is clamped with the first clamping part (31) so that the knob component (40) is located in a locking state locked with the connecting component (30); when the knob member (40) is at the second moving position, the second clamping portion (412) is separated from the first clamping portion (31), so that the knob member (40) is in a rotatable state relative to the connecting member (30).

3. The locking structure of claim 2, wherein the first engaging portion (31) is a first protrusion and the second engaging portion (412) is a first engaging hole.

4. The locking arrangement, as set forth in claim 2, characterized in that the knob member (40) has a second rotational position with the second stop (411) on the side of the first stop (21), the knob member (40) having a third and a fourth shift position when the knob member (40) is in the second rotational position;

the connecting component (30) is provided with a third clamping part (33), the second clamping part (412) is matched with the third clamping part (33), and when the knob component (40) is located at the third moving position, the second clamping part (412) is clamped with the third clamping part (33) so that the knob component (40) is in a locking state locked with the connecting component (30); when the knob member (40) is at the fourth moving position, the second engaging portion (412) is separated from the third engaging portion (33), so that the knob member (40) is in a rotatable state with respect to the connecting member (30).

5. The locking structure of claim 4, wherein the third engaging portion (33) is a second protrusion structure, and the second engaging portion (412) is a first engaging hole.

6. The locking structure according to claim 4, wherein the third catching portion (33) and the first catching portion (31) are provided at an interval of 90 degrees around the rotation direction of the knob member (40).

7. The locking structure of any one of claims 2 to 6, further comprising:

and the limiting component (50) is connected with the connecting component (30) and arranged between the connecting component (30) and the knob component (40) so as to limit the knob component (40).

8. Locking structure as claimed in claim 7, characterized in that said connection member (30) comprises a connection hole (32); the limiting component (50) is provided with an avoiding channel (51), and the avoiding channel (51) is arranged opposite to the connecting hole (32); the knob component (40) comprises a connecting rod (42), the connecting rod (42) is provided with a stopping step (423), the connecting rod (42) is inserted into the avoiding channel (51) and the connecting hole (32), and the stopping step (423) is located in the connecting hole (32) so that the connecting rod (42) abuts against the limiting component (50) in the moving process of the connecting component (30).

9. The locking structure according to claim 8, wherein the connecting rod (42) comprises a first rod segment (421) and a second rod segment (422), one end of the second rod segment (422) is connected with the first rod segment (421), the other end of the second rod segment (422) is connected with the knob body (41), and the first rod segment (421) is located on the side of the limiting part (50) far away from the knob body (41); the length of the second rod segment (422) is larger than the thickness of the limiting part (50) along the extending direction of the connecting rod (42), so that the connecting rod (42) can be movably arranged relative to the connecting part (30); the diameter of the first rod section (421) is larger than the diameter of the second rod section (422) such that the stop step (423) is formed between the first rod section (421) and the second rod section (422).

10. The locking structure according to claim 8, wherein the limiting member (50) comprises a side wall (52), a first end surface (53) and a second end surface (54), the first end surface (53) and the second end surface (54) are oppositely arranged along the extending direction of the connecting hole (32), the avoiding channel (51) extends from the first end surface (53) to the second end surface (54), the avoiding channel (51) extends to the side wall (52) to form an avoiding opening (55), so that the connecting rod (42) is arranged in the avoiding channel (51) through the avoiding opening (55).

11. The fastening structure according to claim 7, wherein the connecting member (30) is provided with a first fastening hole (34), the position-limiting member (50) is provided with a second fastening hole (56), and the position-limiting member (50) is fixedly connected to the connecting member (30) by fasteners provided in the first fastening hole (34) and the second fastening hole (56).

12. Locking arrangement according to any of claims 1-6, characterized in that the knob part (40) comprises a non-slip part (45), which non-slip part (45) is arranged on the knob body (41) to play a non-slip role when rotating the knob part (40).

13. A display screen, comprising a box body (20), a display screen module (10) and a locking structure, wherein the locking structure is used for locking the display screen module (10) on the box body (20), and is characterized in that the locking structure is the locking structure according to any one of claims 1 to 12.

14. A display screen according to claim 13, characterised in that the first stop (21) of the locking arrangement is a lug arrangement or a recess.