Locking mechanism and display equipment

Abstract

The utility model is suitable for the technical field of display equipment, and provides a locking mechanism and display equipment, the locking mechanism is used for connecting a display box and a display module, the locking mechanism comprises a first locking part and a second locking part, the first locking part comprises a lock catch assembly, the lock catch assembly is arranged on the display module, and the second locking part is arranged on the display module. A first locking structure is arranged on the lock catch assembly; the second locking part comprises a mounting base and a spring bolt assembly, the mounting base is arranged on the display box body, the spring bolt assembly is movably mounted on the mounting base and can rotate relative to the mounting base, a second locking structure is arranged on the spring bolt assembly, and the spring bolt assembly can move by a preset distance in the direction close to the lock catch assembly; and the second locking structure and the first locking structure are matched and locked in a manner of rotating a preset angle. Compared with a mode of fixing the display module through a screw in the prior art, the locking mechanism provided by the utility model can quickly disassemble and assemble the display module, and time and labor are saved.

Description

Technical Field

[0001] The present application belongs to the technical field of display devices, and more specifically, to a locking mechanism and a display device. Background Art

[0002] With the rapid development of the LED industry, the rental business of LED screens is increasing. Since rental LED screens need to be used in different scenarios, they need to be frequently disassembled and assembled. The display cabinet and display module of existing rental LED screens are mostly installed through a magnetic structure, and the display module will heat up and deform during operation. In order to reduce the impact of the heat-deformed display module on the flatness of the rental LED screen, screws or captive screws are often added between the display module and the display cabinet for fixing.

[0003] However, when the above display module fails, maintenance personnel need to loosen the screws to remove the display module, which is time-consuming and laborious. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a locking mechanism and a display device, aiming to solve the technical problem of time-consuming and labor-intensive disassembly and maintenance of display modules in the prior art.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present application, a locking mechanism is provided, which is used to connect a display box and a display module, and the locking mechanism comprises: a first locking part and a second locking part, wherein the first locking part comprises a locking buckle assembly, the locking buckle assembly is arranged on the display module, and the locking buckle assembly is provided with a first locking structure; the second locking part comprises a mounting seat and a locking tongue assembly, the mounting seat is arranged on the display box, the locking tongue assembly is movably mounted on the mounting seat and can rotate relative to the mounting seat, and the locking tongue assembly is provided with a second locking structure, and the locking tongue assembly has a locking state in which the second locking structure cooperates with the first locking structure and is restricted from rotating by the first locking structure, and an unlocking state in which the second locking structure avoids the first locking structure.

[0006] Optionally, one of the first locking structure and the second locking structure is a locking recess, and the other of the first locking structure and the second locking structure is a locking protrusion. The locking recess is adapted to the locking protrusion, and the locking tongue assembly can be connected to the first locking portion through the cooperation between the locking recess and the locking protrusion.

[0007] Optionally, the second locking portion also includes an elastic reset component, which is arranged on the mounting seat and abuts against the lock tongue assembly for applying elastic force to the lock tongue assembly. When the lock tongue assembly is not subjected to external force, the lock tongue assembly can maintain a locked state or an unlocked state through the elastic force.

[0008] Optionally, the first locking structure is a locking recess, and the second locking structure is a locking protrusion. The locking protrusion is arranged on one end of the lock tongue assembly close to the lock catch assembly, and the locking recess is arranged on a side of the lock catch assembly away from the lock tongue assembly. The lock catch assembly is provided with a clearance opening, and the clearance opening is used to make way for the locking protrusion. The lock tongue assembly can move a preset distance toward the direction close to the lock catch assembly and rotate a preset angle so that the locking protrusion passes through the clearance opening and cooperates with the locking recess.

[0009] Optionally, the lock tongue assembly includes a lock tongue body and a lock tongue handle, a lock tongue mounting hole is provided on the mounting seat, the lock tongue body is movably inserted into the lock tongue mounting hole, the second locking structure is provided on one end of the lock tongue body close to the lock catch assembly, the lock tongue handle is provided on one end of the lock tongue body away from the lock catch assembly, and is fixedly connected to the lock tongue body for driving the lock tongue body.

[0010] Optionally, the first locking portion further includes a first connecting piece, and a first connecting hole is provided on the locking assembly. The first connecting piece can pass through the first connecting hole to connect with the display module, so that the locking assembly is fixedly connected to the display module.

[0011] Optionally, the second locking portion further includes a second connecting member, and the mounting seat is provided with a second connecting hole, and the second connecting member can pass through the second connecting hole to be connected to the display box, so that the mounting seat is fixedly connected to the display box.

[0012] Optionally, there are multiple first connecting holes and multiple first connecting members, and the multiple first connecting holes are arranged at intervals on the locking assembly, and the multiple first connecting members correspond one-to-one to the multiple first connecting holes; there are multiple second connecting holes and multiple second connecting members, and the multiple second connecting holes are arranged at intervals on the mounting base, and the multiple second connecting members correspond one-to-one to the multiple second connecting holes.

[0013] According to another aspect of the present application, a display device is provided, which includes a display box, a display module and a locking mechanism. The display module is installed on the display box through the locking mechanism, the locking mechanism is the above-mentioned locking mechanism, the display box is the above-mentioned display box, and the display module is the above-mentioned display module.

[0014] Optionally, the display device includes a plurality of locking mechanisms, which are arranged at intervals along the circumference of the display module, and the display module is mounted on the display box through the plurality of locking mechanisms.

[0015] The beneficial effect of the locking mechanism provided by the present application is that: compared with the prior art, the locking mechanism provided by the present application realizes the connection between the lock latch assembly and the lock latch assembly by movably mounting the lock tongue assembly on the mounting seat and enabling the lock tongue assembly to rotate relative to the mounting seat, and at the same time, a first locking structure is provided on the lock catch assembly and a second locking structure is provided on the lock tongue assembly, so that the lock tongue assembly provided by the present application can move a preset distance toward the lock catch assembly and rotate a preset angle, so that the second locking structure cooperates with the first locking structure and limits the rotation of the lock tongue assembly, thereby realizing the connection between the lock catch assembly and the lock tongue assembly, and at the same time Since the locking assembly and the mounting base are respectively arranged on the display module and the display box, the display module can also be fixedly mounted on the display box as the locking assembly is connected to the locking tongue assembly. When the display module needs to be removed from the display box, the locking tongue assembly only needs to be rotated in the opposite direction by a preset angle to release the cooperation between the second locking structure and the first locking structure, so that the display module can be quickly removed from the display box. Compared with the method of fixing the display module by screws in the prior art, the locking mechanism provided in the present application can quickly disassemble and assemble the display module, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of the structure of a display device in which a locking tongue assembly is in a locked state provided in an embodiment of the present application;

[0018] Figure 2 for Figure 1 A partial enlarged view of the middle A area;

[0019] Figure 3 A schematic diagram of the structure of a display device in which a lock tongue assembly is in an unlocked state provided in an embodiment of the present application;

[0020] Figure 4 for Figure 3 A partial enlarged view of the middle B area;

[0021] Figure 5 An exploded schematic diagram of a second locking portion provided in an embodiment of the present application;

[0022] Figure 6 A schematic diagram of the structure of a display device with the second locking portion removed provided by an embodiment of the present application;

[0023] Figure 7for Figure 6 A partial enlarged view of the middle C area;

[0024] The reference numerals in the above drawings are as follows:

[0025] 10. first locking portion; 11. locking assembly; 111. first locking structure; 112. clearance opening; 12. first connecting member;

[0026] 20. second locking portion; 21. mounting seat; 22. locking tongue assembly; 221. locking tongue body; 2211. second locking structure; 222. locking tongue handle; 23. elastic reset assembly; 24. second connecting member;

[0027] 30. Display module;

[0028] 40. Display cabinet. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. In the absence of conflict, the embodiments in this application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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, and therefore should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] As described in the background technology, with the rapid development of the LED industry, the rental business of LED display screens is also increasing. Since rental LED display screens need to be used in different scenarios, rental LED display screens need to be frequently disassembled and assembled. The display box and display module of existing rental LED display screens are mostly installed through a magnetic structure, and the display module will heat up and deform during operation. In order to reduce the impact of the heat-deformed display module on the flatness of the rental LED display screen, screws or loose screws are often added between the display module and the display box for fixing. However, when the above-mentioned display module fails, the maintenance personnel need to loosen the screws to remove the display module, and the disassembly and maintenance is time-consuming and laborious.

[0034] See also Figures 1 to 7As shown, in order to solve the above problems, according to one aspect of the present application, an embodiment of the present application provides a locking mechanism, which is used to connect the display box 40 and the display module 30, and the locking mechanism includes: a first locking part 10 and a second locking part 20, wherein the first locking part 10 includes a locking component 11, the locking component 11 is arranged on the display module 30, and the locking component 11 is provided with a first locking structure 111; the second locking part 20 includes a mounting seat 21 and a locking tongue component 22, the mounting seat 21 is arranged on the display box 40, the locking tongue component 22 is movably mounted on the mounting seat 21, and can rotate relative to the mounting seat 21, and the locking tongue component 22 is provided with a second locking structure 2211, and the locking tongue component 22 has a locking state in which the second locking structure 2211 cooperates with the first locking structure 111 and is restricted from rotating by the first locking structure 111, and an unlocking state in which the second locking structure 2211 avoids the first locking structure 111. The locking mechanism provided in this embodiment is implemented by movably mounting the lock tongue assembly 22 on the mounting seat 21, and enabling the lock tongue assembly 22 to rotate relative to the mounting seat 21. At the same time, a first locking structure 111 is provided on the lock catch assembly 11, and a second locking structure 2211 is provided on the lock tongue assembly 22. The lock tongue assembly 22 provided in this embodiment can move a preset distance toward the lock catch assembly 11 and rotate a preset angle, so that the second locking structure 2211 cooperates with the first locking structure 111 and restricts the rotation of the lock tongue assembly 22, thereby realizing the connection between the lock catch assembly 11 and the lock tongue assembly 22. At the same time, since the lock catch assembly 11 and the mounting seat 21 are connected, the lock tongue assembly 22 can be connected to the mounting seat 21. The seat 21 is respectively arranged on the display module 30 and the display box 40, so the display module 30 can also be fixedly installed on the display box 40 with the connection between the lock assembly 11 and the lock tongue assembly 22. When the display module 30 needs to be removed from the display box 40, it only needs to rotate the lock tongue assembly 22 in the opposite direction by a preset angle to release the cooperation between the second locking structure 2211 and the first locking structure 111, so that the display module 30 can be quickly removed from the display box 40. Compared with the method of fixing the display module 30 by screws in the prior art, the locking mechanism provided in this embodiment can quickly disassemble and assemble the display module 30, saving time and effort.

[0035] See also Figure 2 , Figure 4 , Figure 5 and Figure 7As shown, in a specific embodiment, one of the first locking structure 111 and the second locking structure 2211 in this embodiment is a locking recess, and the other of the first locking structure 111 and the second locking structure 2211 is a locking protrusion, the locking recess matches the locking protrusion, and the locking tongue assembly 22 can be connected to the first locking portion 10 through the cooperation of the locking recess and the locking protrusion. By setting one of the first locking structure 111 and the second locking structure 2211 provided in this embodiment as a locking recess, and the other of the first locking structure 111 and the second locking structure 2211 as a locking protrusion, and making the locking recess match the locking protrusion, the locking tongue assembly 22 provided in this embodiment can be connected and locked with the first locking portion 10 through the cooperation of the locking recess and the locking protrusion.

[0036] See also Figures 1 to 4 As shown, in a specific embodiment, the second locking portion 20 in this embodiment further includes an elastic reset component 23, which is arranged on the mounting seat 21 and abuts against the lock tongue component 22, and is used to apply elastic force to the lock tongue component 22. When the lock tongue component 22 is not subjected to external force, the lock tongue component 22 can maintain a locked state or an unlocked state through the elastic force. By arranging the elastic reset component 23 on the mounting seat 21 provided in this embodiment and making the elastic reset component 23 abut against the lock tongue component 22, the lock tongue component 22 in the locked state provided in this embodiment can, when not subjected to external force, make the first locking structure 111 abut against the second locking structure 2211 through the elastic force applied by the elastic reset component 23, so as to maintain the cooperation and locking between the first locking structure 111 and the second locking structure 2211. At the same time, when the lock tongue component 22 in the unlocked state is not subjected to external force, the elastic force applied by the elastic reset component 23 can also maintain the second locking structure 2211 avoiding the first locking structure 111.

[0037] In an optional embodiment, the elastic reset component 23 provided in this embodiment is a compression spring. Of course, in other embodiments, the elastic reset component 23 provided in this embodiment may also be other devices capable of applying elastic force to the lock tongue component 22.

[0038] See also Figure 5 and Figure 7As shown, in a specific embodiment, the first locking structure 111 in this embodiment is a locking recess, and the second locking structure 2211 is a locking protrusion. The locking protrusion is arranged on an end of the lock tongue assembly 22 close to the lock component 11, and the locking recess is arranged on a side of the lock component 11 away from the lock tongue assembly 22. The lock component 11 is provided with a clearance opening 112, and the clearance opening 112 is used to make way for the locking protrusion. The lock tongue assembly 22 can move a preset distance in the direction close to the lock component 11 and rotate a preset angle so that the locking protrusion can pass through the clearance opening 112 and cooperate with the locking recess. By providing a locking protrusion on the end of the lock tongue assembly 22 provided in the present embodiment close to the lock catch assembly 11, providing a locking recess on the side of the lock catch assembly 11 away from the lock tongue assembly 22, and providing a clearance opening 112 on the lock catch assembly 11, the lock tongue assembly 22 provided in the present embodiment can be moved a preset distance in the direction close to the lock catch assembly 11 and rotated by a preset angle, so that the locking protrusion provided in the present embodiment passes through the clearance opening 112 and cooperates with the locking recess, thereby realizing a quick connection between the lock tongue assembly 22 and the lock catch assembly 11.

[0039] In an optional embodiment, a locking groove is formed between the locking recess provided in this embodiment and the display module 30 , and the locking protrusion provided in this embodiment can be engaged with the locking groove.

[0040] In an optional embodiment, the clearance opening 112 provided in this embodiment can enable the side of the lock assembly 11 close to the lock tongue assembly 22 to communicate with the locking groove.

[0041] See also Figure 5As shown, in order to facilitate the driving of the lock tongue assembly 22 provided in this embodiment, the lock tongue assembly 22 in this embodiment includes a lock tongue body 221 and a lock tongue handle 222. A lock tongue mounting hole is provided on the mounting seat 21. The lock tongue body 221 is movably penetrated through the lock tongue mounting hole. The second locking structure 2211 is provided on one end of the lock tongue body 221 close to the lock assembly 11. The lock tongue handle 222 is provided on one end of the lock tongue body 221 away from the lock assembly 11 and is fixedly connected to the lock tongue body 221 for driving the lock tongue body 221. By setting a lock tongue mounting hole on the mounting seat 21 provided in the present embodiment, and movably inserting the lock tongue body 221 provided in the present embodiment into the lock tongue mounting hole, the lock tongue body 221 provided in the present embodiment can move on the lock tongue mounting hole along the axial direction of the lock tongue mounting hole, and rotate along the circumferential direction of the lock tongue mounting hole. At the same time, by setting a lock tongue handle 222 on the end of the lock tongue body 221 provided in the present embodiment away from the lock assembly 11, and fixing the lock tongue handle 222 to the lock tongue body 221, the user can drive the lock tongue body 221 through the lock tongue handle 222, so that the lock tongue assembly 22 can quickly switch between the locked state and the unlocked state.

[0042] In an optional embodiment, the locking tongue installation hole provided in this embodiment extends in a direction perpendicular to the display surface of the display module 30 .

[0043] In an optional embodiment, the lock tongue handle 222 and the lock tongue body 221 provided in this embodiment are fixedly connected by a threaded fastener.

[0044] In an optional embodiment, a first transmission structure is provided on one end of the lock tongue handle 222 provided in this embodiment close to the lock tongue body 221, and a second transmission structure is provided on one end of the lock tongue body 221 close to the lock tongue handle 222. The lock tongue body 221 and the lock tongue handle 222 can be transmitted through the cooperation of the first transmission structure and the second transmission structure.

[0045] In an optional embodiment, one of the first transmission structure and the second transmission structure provided in this embodiment is a transmission hole, and the other is a transmission shaft. The transmission shaft provided in this embodiment is adapted to the transmission hole. The transmission shaft provided in this embodiment can be passed through the transmission hole and cooperate with the transmission hole to realize the transmission connection between the lock tongue body 221 and the lock tongue handle 222.

[0046] In an optional embodiment, the compression spring provided in this embodiment is sleeved on the lock tongue body 221 and is located in the lock tongue mounting hole. The two ends of the compression spring provided in this embodiment are respectively abutted against the mounting seat 21 and the lock tongue handle 222. The compression spring provided in this embodiment can apply an elastic force to the lock tongue handle 222 in a direction away from the lock assembly 11.

[0047] See also Figures 1 to 4 , Figure 6 and Figure 7 As shown, in a specific embodiment, the first locking portion 10 in this embodiment further includes a first connecting member 12, and a first connecting hole is provided on the locking assembly 11. The first connecting member 12 can pass through the first connecting hole to connect with the display module 30, so that the locking assembly 11 is fixedly connected to the display module 30. By providing the first connecting hole on the locking assembly 11 provided in this embodiment, the first connecting member 12 can pass through the first connecting hole to connect with the display module 30, so that the locking assembly 11 is fixedly installed on the display module 30.

[0048] See also Figure 5 As shown, in a specific embodiment, the second locking portion 20 in this embodiment further includes a second connecting member 24, and the mounting seat 21 is provided with a second connecting hole, and the second connecting member 24 can pass through the second connecting hole to connect with the display box 40, so that the mounting seat 21 is fixedly connected with the display box 40. By providing the second connecting hole on the mounting seat 21 provided in this embodiment, the second connecting member 24 can pass through the second connecting hole to connect with the display box 40, so that the locking assembly 11 is fixedly installed on the display module 30.

[0049] In a specific embodiment, the first connection hole and the first connection member 12 in this embodiment are both multiple, and the multiple first connection holes are arranged at intervals on the locking assembly 11, and the multiple first connection members 12 correspond to the multiple first connection holes one by one; the second connection hole and the second connection member 24 are both multiple, and the multiple second connection holes are arranged at intervals on the mounting seat 21, and the multiple second connection members 24 correspond to the multiple second connection holes one by one. By setting the first connection hole and the first connection member 12 in this embodiment to be multiple, and making the multiple first connection holes arranged at intervals on the locking assembly 11, and the multiple first connection members 12 correspond to the multiple first connection holes one by one, the connection between the locking assembly 11 provided in this embodiment and the display module 30 is made more stable; at the same time, by setting the second connection hole and the second connection member 24 provided in this embodiment to be multiple, and making the multiple second connection holes arranged at intervals on the mounting seat 21, and the multiple second connection members 24 correspond to the multiple second connection holes one by one, the connection between the mounting seat 21 provided in this embodiment and the display box 40 is made more stable.

[0050] See also Figures 1 to 7As shown, according to another aspect of the present application, a display device is provided, the display device includes a display box 40, a display module 30 and a locking mechanism, the display module 30 is installed on the display box 40 through the locking mechanism, the locking mechanism is the above-mentioned locking mechanism, the display box 40 is the above-mentioned display box 40, and the display module 30 is the above-mentioned display module 30.

[0051] See also Figure 1 , Figure 3 and Figure 6 As shown, in order to make the connection between the display module 30 provided in this embodiment and the display box 40 more stable, the display device in this embodiment includes a plurality of locking mechanisms, and the plurality of locking mechanisms are arranged at intervals along the circumference of the display module 30, and the display module 30 is installed on the display box 40 through the plurality of locking mechanisms. By providing a plurality of locking mechanisms provided in this embodiment, and arranging the plurality of locking mechanisms at intervals along the circumference of the display module 30, the display module 30 provided in this embodiment can be connected to the display box 40 through the plurality of locking mechanisms, thereby making the connection between the display module 30 provided in this embodiment and the display box 40 more stable.

[0052] In an optional embodiment, a third connecting hole is provided on the display module 30 provided in this embodiment, and the first connecting member 12 provided in this embodiment can pass through the first connecting hole on the locking assembly 11 and connect with the third connecting hole to fix the locking assembly 11 to the display module 30.

[0053] In an optional embodiment, the first connecting member 12 provided in this embodiment is a bolt, the first connecting hole is a through hole, and the third connecting hole is a threaded hole.

[0054] In an optional embodiment, a fourth connecting hole is provided on the display box 40 provided in this embodiment, and the second connecting member 24 provided in this embodiment can pass through the second connecting hole on the mounting base 21 and connect with the fourth connecting hole to fix the mounting base 21 to the display module 30.

[0055] In an optional embodiment, the second connecting member 24 provided in this embodiment is a bolt, the second connecting hole is a through hole, and the fourth connecting hole is a threaded hole.

[0056] In an optional embodiment, the locking assembly 11 provided in this embodiment is located on a side of the display module 30 away from the display surface.

[0057] In another embodiment, the locking assembly provided in this embodiment is integrally formed with the display module.

[0058] In another embodiment, the mounting base provided in this embodiment is integrally formed with the display box.

[0059] In summary, the locking mechanism and display device provided by the present embodiment have at least the following beneficial technical effects: the locking mechanism provided by the present embodiment is implemented by movably mounting the lock tongue assembly 22 on the mounting seat 21, and enabling the lock tongue assembly 22 to rotate relative to the mounting seat 21, and at the same time, a first locking structure 111 is provided on the lock catch assembly 11, and a second locking structure 2211 is provided on the lock tongue assembly 22, so that the lock tongue assembly 22 provided by the present embodiment can move a preset distance in a direction close to the lock catch assembly 11 and rotate a preset angle, so that the second locking structure 2211 cooperates with and locks with the first locking structure 111, and at the same time, due to the lock catch assembly 11 and the mounting seat 21, the lock tongue assembly 22 can be locked by the first locking structure 111. The mounting seat 21 is respectively arranged on the display module 30 and the display box 40, so the display module 30 can also be fixedly installed on the display box 40 as the second locking structure 2211 cooperates and locks with the first locking structure 111. When the display module 30 needs to be removed from the display box 40, it is only necessary to reversely rotate the lock tongue assembly 22 to release the cooperation between the second locking structure 2211 and the first locking structure 111, so that the display module 30 can be quickly removed from the display box 40. Compared with the method of fixing the display module 30 by screws in the prior art, the locking mechanism provided in this embodiment can quickly disassemble and assemble the display module 30, saving time and effort.

[0060] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A locking mechanism for connecting a display box (40) and a display module (30), characterized in that: The locking mechanism comprises: A first locking portion (10), the first locking portion (10) comprising a locking assembly (11), the locking assembly (11) being arranged on the display module (30), and the locking assembly (11) being provided with a first locking structure (111); A second locking portion (20), the second locking portion (20) comprising a mounting seat (21) and a locking tongue assembly (22), the mounting seat (21) being arranged on the display box (40), the locking tongue assembly (22) being movably mounted on the mounting seat (21) and being capable of rotating relative to the mounting seat (21), the locking tongue assembly (22) being provided with a second locking structure (2211), the locking tongue assembly (22) having a locking state in which the second locking structure (2211) cooperates with the first locking structure (111) and is restricted from rotating by the first locking structure (111), and an unlocking state in which the second locking structure (2211) avoids the first locking structure (111).

2. The locking mechanism according to claim 1, characterized in that: One of the first locking structure (111) and the second locking structure (2211) is a locking recess, and the other of the first locking structure (111) and the second locking structure (2211) is a locking protrusion. The locking recess is matched with the locking protrusion, and the locking tongue assembly (22) can be connected to the first locking portion (10) through the cooperation between the locking recess and the locking protrusion.

3. The locking mechanism according to claim 1, characterized in that: The second locking portion (20) further comprises an elastic reset component (23), wherein the elastic reset component (23) is arranged on the mounting seat (21) and abuts against the locking tongue component (22) and is used to apply an elastic force to the locking tongue component (22). When the locking tongue component (22) is not subjected to an external force, the locking tongue component (22) can maintain the locked state or unlocked state by the elastic force.

4. The locking mechanism according to claim 2, characterized in that: The first locking structure (111) is a locking recess, and the second locking structure (2211) is a locking protrusion. The locking protrusion is arranged on an end of the locking tongue assembly (22) close to the lock assembly (11), and the locking recess is arranged on a side of the lock assembly (11) away from the locking tongue assembly (22). The lock assembly (11) is provided with a clearance opening (112), and the clearance opening (112) is used to make way for the locking protrusion. The locking tongue assembly (22) can move a preset distance in a direction close to the lock assembly (11) and rotate a preset angle so that the locking protrusion passes through the clearance opening (112) and cooperates with the locking recess.

5. The locking mechanism according to claim 1, characterized in that: The lock tongue assembly (22) comprises a lock tongue body (221) and a lock tongue handle (222); a lock tongue mounting hole is provided on the mounting seat (21); the lock tongue body (221) is movably inserted into the lock tongue mounting hole; the second locking structure (2211) is provided on an end of the lock tongue body (221) close to the lock assembly (11); the lock tongue handle (222) is provided on an end of the lock tongue body (221) away from the lock assembly (11) and is fixedly connected to the lock tongue body (221) for driving the lock tongue body (221).

6. The locking mechanism according to any one of claims 1 to 5, characterized in that: The first locking portion (10) further comprises a first connecting member (12), and a first connecting hole is provided on the locking assembly (11), and the first connecting member (12) can pass through the first connecting hole to be connected to the display module (30), so that the locking assembly (11) is fixedly connected to the display module (30).

7. The locking mechanism according to claim 6, characterized in that: The second locking portion (20) further comprises a second connecting member (24); a second connecting hole is provided on the mounting seat (21); the second connecting member (24) can pass through the second connecting hole to connect with the display box (40), so that the mounting seat (21) and the display box (40) are fixedly connected.

8. The locking mechanism according to claim 7, characterized in that: There are a plurality of the first connection holes and the first connection members (12), the plurality of the first connection holes are arranged at intervals on the locking assembly (11), and the plurality of the first connection members (12) correspond one to one to the plurality of the first connection holes; There are a plurality of the second connection holes and the second connection members (24), the plurality of the second connection holes are arranged at intervals on the mounting seat (21), and the plurality of the second connection members (24) correspond one-to-one to the plurality of the second connection holes.

9. A display device, characterized in that: The display device includes a display box, a display module and a locking mechanism, the display module is installed on the display box through the locking mechanism, the locking mechanism is the locking mechanism described in any one of claims 1 to 5, the display box is the display box described in any one of claims 1 to 8, and the display module is the display module described in any one of claims 1 to 8.

10. The display device according to claim 9, characterized in that The display device comprises a plurality of locking mechanisms, which are arranged at intervals along the circumference of the display module, and the display module is mounted on the display box through the plurality of locking mechanisms.

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