Automatic locking buckle, display assembly and splicing screen

Abstract

The present invention discloses an automatic locking buckle, a display screen assembly and a spliced ​​screen, wherein the automatic locking buckle comprises a base, a connecting part is arranged on the base, and the connecting part connects the outer side and the inner side of the base; a releasing part is installed on the inner side of the base, the releasing part has a releasing member, the releasing member is connected to the outer side of the base via the connecting part, and is driven to switch between a first position and a second position on the inner side of the base; a locking part is installed on the inner side of the base, the locking part has a locking member and a first elastic member, and the first elastic member abuts the locking member and the base respectively; when the releasing member is in the first position and restricts the locking member, the locking member is accommodated on the inner side of the base; when the releasing member is driven and switched to the second position, the locking member is released from the releasing member and driven by the first elastic member to extend to the outer side of the base. The automatic locking buckle of the present invention has a simple installation process and can quickly and automatically lock each display screen assembly when splicing the display screen assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of lock buckles, and in particular to an automatic locking buckle. In addition, the present invention also relates to a display screen assembly and a spliced ​​screen having the automatic locking buckle. Background Art

[0002] LED display screens are widely used in houses, commercial performances, advertisements and other occasions due to their excellent display effects. Large spliced ​​screens are generally made up of multiple independent display screen components. Known spliced ​​screens mainly use screws and connecting pieces to lock the display screen components to each other. For example, the connecting pieces are connected and fixed to adjacent boxes by screws. The display screen components are locked by screws and connecting pieces to splice. Although the splicing is firm, the installation process is cumbersome, for example, it requires the cooperation of multiple people, some of whom hold the display screen components, and some of whom use tools to tighten the screws. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an automatic locking buckle, which has a simple installation process and can quickly and automatically lock each display screen assembly when splicing the display screen assemblies.

[0004] The present invention also provides a display screen assembly and a spliced ​​screen having the automatic locking buckle.

[0005] According to the automatic locking buckle of the first aspect embodiment of the present invention, it includes a base, the base is provided with a connecting part, the connecting part connects the outer side and the inner side of the base; a releasing part is installed on the inner side of the base, the releasing part has a releasing member, the releasing member is connected with the outer side of the base via the connecting part, and is driven to switch between a first position and a second position on the inner side of the base; a locking part is installed on the inner side of the base, the locking part has a locking member and a first elastic member, the first elastic member respectively abuts against the locking member and the base; when the releasing member is located at the first position and restricts the locking member, the locking member is accommodated on the inner side of the base; when the releasing member is driven and switched to the second position, the locking member is released from the releasing member and is driven by the first elastic member to extend to the outer side of the base.

[0006] The automatic locking buckle according to the embodiment of the present invention has at least the following beneficial effects: by providing a connecting portion connecting the outer side and the inner side of the base, and providing a releasing portion with a releasing member and a locking portion with a locking member on the inner side of the base, the locking member on the inner side of the base can be directly driven from the outer side of the base to extend to the outer side of the base and lock it, and the installation process is simple.

[0007] According to some embodiments of the present invention, the release member is provided with a driving end, the driving end is opposite to the connecting portion, and the release member is driven at the driving end to slide and switch from the first position to the second position.

[0008] According to some embodiments of the present invention, the release portion further includes a second elastic member, the second elastic member abuts against the release member and the base, respectively, and the second elastic member drives the release member to slide and locate it in the first position.

[0009] According to some embodiments of the present invention, it also includes a driving part, which is mounted to the base, and has a first driving member, which slides through the connecting part; the first driving member is driven on the outside of the base and abuts the driving end to drive the release member to switch from the first position to the second position.

[0010] According to some embodiments of the present invention, the driving part further has a third elastic member, and the third elastic member abuts against the first driving member and the base respectively, and drives the front end of the first driving member to be exposed outside the base.

[0011] According to some embodiments of the present invention, the locking element is swingably hinged to the base, the first elastic element is a torsion spring, the torsion springs respectively abut the locking element and the base, and after the locking element is released from the releasing element, the front end of the locking element swings out to the outside of the base.

[0012] According to some embodiments of the present invention, when the locking element is driven in the direction in which its front end swings and retracts to the inner side of the base, the rear end of the locking element passes over the releasing element from above the releasing element and abuts against the bottom of the releasing element; after the locking element abuts against the bottom of the releasing element, the swinging of the locking element is restricted.

[0013] According to some embodiments of the present invention, the locking member abuts against the releasing member from above the releasing member, and drives the releasing member to switch from the first position to the second position so as to pass over the releasing member and abut against the below of the releasing member.

[0014] According to the second aspect of the embodiment of the present invention, the display screen assembly includes a box for installing the display screen, the box is in the shape of a square frame; the automatic locking buckle is arranged on the inner side of at least one side of the box, and when the release member is driven and switched to the second position, the locking member is released from the release member and driven by the first elastic member to extend to the outside of the box.

[0015] The display screen assembly according to the embodiment of the present invention has at least the following beneficial effects: since the above-mentioned automatic locking buckle is provided on one side of the box body, by providing a connecting portion connecting the outer side and the inner side thereof on the base, and providing a releasing portion with a releasing member and a locking portion with a locking member on the inner side of the base, the locking member on the inner side of the base can be directly driven from the outer side of the base to extend to the outer side of the base and be locked, the installation process is simple, and the display screen assembly can be quickly and automatically locked when the display screen assembly is spliced.

[0016] The splicing screen according to the third aspect of the embodiment of the present invention includes the display screen assembly, which includes at least two groups. In the box, a lock hole is provided on the other side opposite to the side where the automatic locking buckle is provided. When the two groups of the display screen assemblies are spliced, the lock holes of one group of the display screen assemblies are opposite to the lock holes of the other group of the display screen assemblies, and the locking element is stuck in the lock hole.

[0017] The splicing screen according to the embodiment of the present invention has at least the following beneficial effects: since each display screen assembly is respectively provided with the above-mentioned automatic locking buckle on one side of the box body, and a locking hole is provided on the other side opposite to the side, during splicing, the release member is driven to switch the position on the outer side of the base so that the locking member extends to the outside of the box body and is stuck in the locking hole. The installation process is simple, and the display screen assembly can be quickly and automatically locked when the display screen assemblies are spliced.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of an embodiment of the automatic locking buckle of the present invention viewed from the inside;

[0020] Figure 2 yes Figure 1 A schematic diagram of an automatic locking buckle viewed from the outside;

[0021] Figure 3 yes Figure 1 An exploded view of the automatic locking buckle;

[0022] Figure 4 is a schematic diagram of the release member being driven to switch positions;

[0023] Figure 5 is a schematic diagram when the release member is in the first position and the locking member is restricted;

[0024] Figure 6 is a schematic diagram of a state where the release member is in a second position and the locking member can be released from the release member;

[0025] Figure 7is a schematic diagram of a locking member being driven so that its front end extends outward from the base;

[0026] Figure 8 is a schematic diagram from another perspective when the release member is in the first position and the locking member is restricted;

[0027] Fig. 9 is a schematic diagram of an embodiment of a display screen assembly, wherein (a) is a schematic diagram of the display screen assembly, and (b) is a partial enlarged view of the display screen assembly A;

[0028] Fig.10 It is a schematic diagram of an embodiment of a spliced ​​screen. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments to clearly and completely describe the concept of the present invention and the technical effects produced, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0030] In the description of the embodiments of the present invention, if orientation descriptions are involved, the orientations or positional relationships indicated by “up”, “down”, “front”, “back”, “left”, “right”, etc. are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of the embodiments of the present invention, if a feature is referred to as being "set", "fixed", "connected", or "installed" on another feature, it may be directly set, fixed, or connected to the other feature, or it may be indirectly set, fixed, connected, or installed on the other feature. In the description of the embodiments of the present invention, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than", or "exceeds" is involved, it should be understood as not including the number itself, and if "above", "below", or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] Figure 1 is a schematic diagram of an embodiment of the automatic locking buckle 100 viewed from the inner side 204, Figure 2is a schematic diagram of the automatic locking buckle 100 viewed from the outside 203, referring to Figure 1 , Figure 2 According to the first aspect of the present invention, the automatic locking buckle 100 includes a base 200, a release portion 300 and a lock portion 400. The base 200 is provided with a connecting portion 210, and the connecting portion 210 connects the outer side 203 and the inner side 204 of the base 200; the release portion 300 is installed on the inner side 204 of the base 200, and the release portion 300 has a release member 310, and the release member 310 is connected to the outer side 203 of the base 200 via the connecting portion 210, and is driven to be in a first position 201 (refer to Figure 5 ) and the second position 202 (reference Figure 6 );The lock part 400 is installed on the inner side 204 of the base 200, and the lock part 400 has a lock member 410 and a first elastic member 420, and the first elastic member 420 abuts against the lock member 410 and the base 200 respectively. When the release member 310 is located at the first position 201 and restricts the lock member 410, the lock member 410 is accommodated on the inner side 204 of the base 200; when the release member 310 is driven and switched to the second position 202, the lock member 410 is released from the release member 310 and driven by the first elastic member 420 to extend to the outer side 203 of the base 200.

[0033] In this embodiment, a connecting portion connecting the outer side and the inner side of the base is provided on the base, and a releasing portion having a releasing member and a locking portion having a locking member are provided on the inner side of the base. The releasing portion on the inner side of the base can be driven from the outer side of the base, and thereby the locking member on the inner side of the base can be extended to the outer side of the base for locking. The installation process is simple.

[0034] In this embodiment, the outer side 203 of the base 200 refers to the side that is exposed to the outside as the mounting surface when the automatic locking buckle 100 is installed, and the inner side 204 of the base 200 refers to the side of the base 200 used to install various components. The connecting portion 210 can be in the shape of a hole and pass through the base 200. The first position 201 (refer to Figure 5 ) means that the release member 310 can limit the position of the lock member 410, and the second position 202 (refer to Figure 6 ) refers to any position of the release member 310 that allows the lock member 410 to be released.

[0035] Figure 3 is an exploded view of the automatic locking buckle 100, refer to Figure 3 , and continue to refer to Figure 1 , Figure 2In some embodiments, the lock 410 is swingably hinged to the base 200, the front end of the lock 410 has a hook 411, the first elastic member 420 is a torsion spring, and the torsion spring has two arms 421 and 422, one of the arms 421 and 422, such as arm 421, abuts against the lock 410, and the other of the arms 421 and 422, such as 422, abuts against the base 200. After the lock 410 is released from the release member 310, the hook 411 at the front end of the lock 410 swings out to the outer side 203 of the base 200. Specifically, the inner side 204 of the base 200 is protrudingly provided with a first hinge seat 205 and a second hinge seat 206, and the middle part of the lock 410 is supported to the first hinge seat 205 and the second hinge seat 206 respectively through the pin 430, and can rotate and swing around the pin 430. The base 200 is provided with an avoidance groove 207 at the position where the lock 410 swings, allowing the front end of the lock 410 to swing to the outer side 203 of the base 200. When the lock 410 is not restricted, the first elastic member (torsion spring) 420 drives the front end of the lock 410 to swing to the outer side 203 of the base 200 via the avoidance groove 207.

[0036] It is conceivable that, although the example of the lock member swinging is described here, it is not limited to this, and the lock member can also slide out of the base. In the example (not shown) where the lock member slides out of the base, the first elastic member can be a coil spring.

[0037] Figure 4 is a schematic diagram of the release member 310 being driven to switch positions, referring to Figure 4 , and continue to refer to Figure 3 In some embodiments, the release member 310 is block-shaped and is configured to be able to slide on the inner side 204 of the base 200. Specifically, a protruding first receiving portion 208 is provided on the inner side 204 of the base 200. The first receiving portion 208 is used to receive the first end 312 of the release member 310. The first receiving portion 208 receives the first end 312 of the release member 310 and guides the sliding of the release member 310. In order to further guide the sliding of the release member 310, a second receiving portion 209 is further provided on the base 200. The second receiving portion 209 is opposite to the first receiving portion 208 and is used to receive the second end 313 of the release member 310 and guide the sliding of the release member 310. A driving end 311 is provided between the first end 312 and the second end 313 of the release member 310. The driving end 311 is opposite to the connecting portion 210. The release member 310 is driven at the driving end 311 and slides in the first accommodating portion 208 and the second accommodating portion 209 respectively, switching from the first position 201 to the second position 202.

[0038] In order to drive the release member 310 to switch from the first position 201 to the second position 202. In some embodiments, the automatic locking buckle 100 further includes a driving unit 500, which is mounted to the base 200, and has a first driving member 510, which slides through the connecting portion 210, and a front end 511 of the first driving member 510 is exposed on the outer side 203 of the base 200, and the first driving member 510 abuts against the driving end 311 of the release member 310. When the first driving member 510 is driven on the outer side 203 of the base 200 and slides toward the inner side 204 of the base 200, the release member 310 is driven to switch from the first position 201 to the second position 202.

[0039] Specifically, a first inclined surface 314 is provided on the driving end 311 of the release member 310, and the first inclined surface 314 is opposite to the hole-shaped connecting portion 210. The first driving member 510 abuts against the first inclined surface 314 at the inner side 204 of the base 200. When the first driving member 510 is pushed from the outer side 203 of the base 200 to slide toward the inner side 204 of the base 200, the first driving member 510 presses the first inclined surface 314, thereby driving the release member 310 to switch from the first position 201 to the second position 202.

[0040] In order to guide the sliding of the first driving member 510, the front end 511 of the first driving member 510 is in the shape of an axis, and the front end 511 of the first driving member 510 slides in the hole-shaped connecting portion 210; the rear end 513 of the first driving member 510 is also in the shape of an axis, and correspondingly, the base 200 is provided with a first support seat 211, and the first support seat 211 is provided with a first support hole 212 coaxial with the connecting portion 210, and the second shaft member is slidably inserted into the first support hole 212. A push block 512 is provided between the front end 511 and the rear end 513 of the first driving member 510, and a second inclined surface 514 is provided on the push block 512 to fit the first inclined surface 314. When the first driving member 510 is driven toward the inner side 204 of the base 200, the first inclined surface 314 and the second inclined surface 514 slide against each other, thereby, the first driving member 510 squeezes the release member 310 to switch from the first position 201 to the second position 202.

[0041] In order to drive the front end 511 of the first driving member 510 to extend to the outer side 203 of the base 200, the driving part 500 further comprises a third elastic member 520, and the third elastic member 520 respectively abuts against the first driving member 510 and the base 200. Specifically, in this embodiment, the third elastic member 520 can be a coil spring, one end of which abuts against the first support seat 211 of the base 200, and the other end abuts against the first driving member 510.

[0042] When the automatic locking buckle 100 is not installed, the third elastic member 520 applies pressure to the first driving member 510, so the first driving member 510 is exposed on the outer side 203 of the base 200. When the automatic locking buckle 100 is installed, since the outer side 203 of the base 200 is used as the main installation surface, the first driving member 510 is pushed to slide toward the inner side 204 of the base 200, and at the same time, the release member 310 is driven by the first driving member 510 and switches from the first position 201 to the second position 202. At the same time, the locking member 410 is released from the restriction of the release member 310 and is driven by the first elastic member 420 to extend to the outer side 203 of the base 200, thereby being able to be hooked.

[0043] It can be imagined that although the example of the drive unit being installed on the base is described here, it is not limited to this. The drive unit can also be installed on the component that needs to be locked by the automatic locking buckle. When the automatic locking buckle is installed, the drive unit abuts against the release member from the component through the connecting part and drives the release member to switch from the first position to the second position.

[0044] In order to drive the release member 310 to switch from the second position 202 to the first position 201, the release portion 300 further includes a second elastic member 320, the second elastic member 320 abuts against the release member 310 and the base 200 respectively, and the second elastic member 320 drives the release member 310 to slide and locate it in the first position 201. Specifically, the second elastic member 320 may be a coil spring, one end of the second elastic member 320 abuts against the first accommodation portion 208, and the other end abuts against the release member 310, and when the driving end 311 of the release member 310 is not driven, the second elastic member 320 pushes the release member 310 to slide in the direction toward the second accommodation portion 209.

[0045] It is conceivable that, although it is described here that the release member 310 is driven by the second elastic member 320 to switch from the second position 202 to the first position 201, it is not limited to this, and the release member 310 can also be switched by directly clamping it with a tool such as a wrench.

[0046] Figure 5 is a schematic diagram when the release member 310 is in the first position 201 and the lock member 410 is restricted. Figure 6 is a schematic diagram when the release member 310 is in the second position 202 and the lock member 410 can be released from the release member 310, Figure 7 is a schematic diagram showing that the front end of the locking element 410 is driven to extend to the outer side 203 of the base 200. Figure 8 is a schematic diagram of another perspective when the release member 310 is in the first position 201 and the lock member 410 is restricted. Figures 5 to 7 , the unlocking of the automatic locking buckle 100 is described.

[0047] In some embodiments, when the lock 410 is driven in the direction of swinging its front end back to the inner side 204 of the base 200, the rear end 412 of the lock 410 passes over the release 310 from the upper side 310a of the release 310 and abuts against the lower side 310b of the release 310. After the lock 410 abuts against the lower side 310b of the release 310, the swing of the lock 410 is restricted. In this embodiment, the lock 410 can be swung by overcoming the elastic force of the first elastic member 420 in any known manner, such as directly using a wrench to swing the lock 410 in the direction of retracting its front end back to the inner side 204 of the base 200, and abut against the lower side of the release 310 when the release 310 is at the first position 201.

[0048] In some embodiments, the lock member 410 abuts against the release member 310 from the upper 310a of the release member 310, and drives the release member 310 to switch from the first position 201 to the second position 202, so as to pass over the release member 310 and abut against the lower 310b of the release member 310. Specifically, the upper part of the release member 310 is provided with a third inclined surface 315, and the rear end of the lock member 410 abuts against the third inclined surface 315 and slides along the third inclined surface 315, driving the release member 310 to compress the second elastic member 320 and switch from the first position 201 to the second position 202. When the rear end of the lock member 410 passes over the release member 310, due to the thrust of the second elastic member 320, the release member 310 is reset from the second position 202 to the first position 201, and the lock member 410 is restricted to the lower 310b of the release member 310 to prevent it from swinging. In this way, the automatic locking buckle 100 can be unlocked.

[0049] It can be imagined that although an example is described here in which the lock 410 directly drives the release member 310 to switch positions so that the lock 410 abuts against the bottom 310b of the release member 310, it is not limited to this. The release member can also be directly pushed using a tool to switch it between the first position 201 and the second position 202 so that the lock abuts against the bottom of the release member.

[0050] Fig. 9 is a schematic diagram of an embodiment of a display screen assembly 600, wherein (a) is a schematic diagram of the display screen assembly 600, and (b) is a partial enlarged view of A of the display screen assembly 600, referring to Fig. 9 The display screen assembly 600 according to the second embodiment of the present invention includes a box body 610 and an automatic locking buckle 100. The box body 610 is used to install a display screen (not shown), such as an LED light board. The box body 610 is in a square frame shape. The automatic locking buckle 100 is at least arranged on the inner side of one side of the box body 610. When the release member 310 is driven and switched to the second position 202, the locking member 410 is released from the release member 310 and is driven by the first elastic member 420 to extend to the outer side 203 of the box body 610.

[0051] Since an automatic locking buckle 100 is provided on one side of the box body 610, by providing a connecting portion 210 connecting the outer side 203 and the inner side 204 of the base 200, a releasing portion 300 with a releasing member 310 and a locking portion 400 with a locking member 410 are provided on the inner side 204 of the base 200, the locking member 410 on the inner side 204 of the base 200 can be directly driven on the outer side 203 of the base 200 to extend to the outer side 203 of the base 200 and be locked. The installation process is simple, and the display screen assembly 600 can be quickly and automatically locked when the display screen assembly 600 is spliced.

[0052] In this embodiment, the base 200 of the automatic locking buckle 100 can be directly integrally formed on the outer shell of the box body 610, that is, the wall of the outer shell of the box body 610, as the base 200, the release part 300 and the locking part 400 are directly installed on the wall of the outer shell of the base 200 respectively.

[0053] It is conceivable that, in order to facilitate the installation or splicing of the display screen assembly 600 , magnets 620 are respectively provided on the outer sides of each side of the box body 610 .

[0054] It is conceivable that a positioning pin 630 may be further provided on the outer side of the side of the box body 610 .

[0055] Fig.10 is a schematic diagram of an embodiment of a spliced ​​screen 700, referring to Fig.10 The splicing screen 700 according to the third aspect of the embodiment of the present invention includes at least two groups of display screen assemblies 600. In the box body 610, a lock hole 611 is provided on the other side opposite to the side where the automatic locking buckle 100 is provided. When the two groups of display screen assemblies 600 are spliced, the lock hole 611 of one group of display screen assemblies 600 is opposite to the lock hole 611 of the other group of display screen assemblies 600, and the lock piece 410 is stuck in the lock hole 611.

[0056] Therefore, since each display screen assembly 600 is respectively provided with an automatic locking buckle 100 on one side of the box body 610 and a locking hole 611 is provided on the other side opposite to the side, during splicing, the release member 310 is driven to switch its position on the outer side 203 of the base 200 so that the locking member 410 extends to the outer side 203 of the box body 610 and is stuck in the locking hole 611. The installation process is simple, and the display screen assembly 600 can be quickly and automatically locked when the display screen assembly 600 is spliced.

[0057] The various specific technical features described in the above specific embodiments can be combined in any way without contradiction. To avoid unnecessary repetition, the present invention does not separately explain various possible combinations.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention but not to limit the same. Any modification or equivalent substitution that does not depart from the scope of the present invention shall be included in the technical solutions of the present invention.

Claims

1. Automatic locking buckle, characterized in that: include A base, wherein a connecting portion is provided on the base, and the connecting portion connects the outer side and the inner side of the base; a release portion, mounted on the inner side of the base, the release portion having a release member, the release member being connected to the outer side of the base via the communication portion, and being driven to switch between a first position and a second position on the inner side of the base, the release member being provided with a driving end, the driving end being opposite to the communication portion, the release member being driven at the driving end to slidably switch from the first position to the second position; A locking part, mounted on the inner side of the base, the locking part comprises a locking member and a first elastic member, the first elastic member abuts against the locking member and the base respectively; a driving part, the driving part being mounted to the base, the driving part comprising a first driving member and a third elastic member, the first driving member slidingly passing through the connecting part, the first driving member being driven outside the base and abutting against the driving end to drive the release member to switch from the first position to the second position, the third elastic member abutting against the first driving member and the base respectively, and driving the front end of the first driving member to be exposed outside the base; When the release member is located at the first position and restricts the lock member, the lock member is accommodated inside the base; When the release member is driven and switched to the second position, the locking member is released from the release member and driven by the first elastic member to extend outward from the base.

2. The automatic locking buckle according to claim 1, characterized in that: The release portion further includes a second elastic member, the second elastic member abuts against the release member and the base respectively, and the second elastic member drives the release member to slide and locate at the first position.

3. The automatic locking buckle according to claim 1, characterized in that: The lock is swingably hinged to the base, the first elastic member is a torsion spring, and the torsion springs respectively abut against the lock and the base. After the lock is released from the release member, the front end of the lock swings out to the outside of the base.

4. The automatic locking buckle according to claim 3, characterized in that: When the lock is driven in the direction in which its front end swings and retracts to the inner side of the base, the rear end of the lock passes over the release member from above the release member and abuts against the bottom of the release member; after the lock abuts against the bottom of the release member, the swing of the lock is restricted.

5. The automatic locking buckle according to claim 4, characterized in that: The locking member abuts against the releasing member from above the releasing member, and drives the releasing member to switch from the first position to the second position, so as to pass over the releasing member and abut against the lower side of the releasing member.

6. A display screen assembly, characterized in that: include A box body, used for installing the display screen, the box body is in a square frame shape; The automatic locking buckle according to any one of claims 1 to 5 is arranged on the inner side of at least one side of the box body, and when the release member is driven and switched to the second position, the locking member is released from the release member and driven by the first elastic member to extend to the outside of the box body.

7. Splicing screen, characterized in that, include The display screen assembly described in claim 6 comprises at least two groups, wherein a lock hole is provided on the other side of the box body opposite to the side where the automatic locking buckle is provided, and when the two groups of the display screen assemblies are spliced, the lock holes of one group of the display screen assemblies are opposite to the lock holes of the other group of the display screen assemblies, and the lock element is inserted into the lock hole.

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