Lock assembly and LED display device with same

Abstract

The invention provides a lockset assembly and an LED display device with the lockset assembly, and the lockset assembly comprises a first seat body which is arranged on a first LED box body and is provided with a lockhole, and a second seat body which is arranged on a second LED box body and is provided with a lockhole; the operating part is rotatably arranged on the first seat body; the spring bolt is provided with a locking position and an unlocking position, the spring bolt is connected with the operating part, and the operating part rotates to drive the spring bolt to move between the locking position and the unlocking position; the second seat body is arranged on the second LED box body; the clamping position is arranged on the second seat body; the lock pin structure is movably arranged on the second seat body, when the spring bolt is located at the locking position, the spring bolt is clamped into the clamping position, the spring bolt drives the lock pin structure to move and enable the lock pin structure to be inserted into the lock hole, and when the spring bolt is located at the unlocking position, the spring bolt retreats from the clamping position, and the lock pin structure retreats from the lock hole. According to the technical scheme of the invention, the problem of insufficient connection stability in related technologies can be effectively solved.

Description

Technical Field

[0001] This invention relates to the field of LED display technology, and more specifically, to a lock assembly and an LED display device having the same. Background Technology

[0002] An LED display screen is an LED display device, typically composed of multiple LED display cabinets assembled together. The stability of the connections between these cabinets directly affects the overall performance and aesthetics of the LED display screen. Currently, adjacent LED display cabinets are mainly fixed together using a relatively simple connection method involving latches and latches. While this method can meet basic fixing requirements, in practical applications, especially in large-scale LED display projects, the connection points are subjected to significant stress. The connection of a single latch and latch is prone to loosening due to external forces, leading to unstable connections between LED cabinets. Summary of the Invention

[0003] The main objective of this invention is to provide a lock assembly and an LED display device having the same, in order to solve the problem of insufficient connection stability in related technologies.

[0004] To achieve the above objectives, according to one aspect of the present invention, a lock assembly is provided, disposed between a first LED housing and a second LED housing. The lock assembly includes: a first base disposed on the first LED housing, the first base having a lock hole; an operating member rotatably disposed on the first base; a bolt having a locked position and an unlocked position, the bolt being connected to the operating member, the operating member rotating to move the bolt between the locked position and the unlocked position; a second base disposed on the second LED housing; a locking position disposed on the second base; and a locking pin structure movably disposed on the second base. When the bolt is in the locked position, the bolt engages with the locking position, the bolt moves the locking pin structure and inserts it into the lock hole; when the bolt is in the unlocked position, the bolt disengages from the locking position, and the locking pin structure withdraws from the lock hole.

[0005] Furthermore, a groove is provided on the side of the second seat away from the first seat, and the groove is spaced apart from the top surface of the second seat, with the locking position formed in the groove.

[0006] Furthermore, the second seat is provided with a mounting hole, the first end of which is connected to the locking position, and the second end of which is configured to correspond to the lock hole. The locking pin structure is set in the mounting hole and can extend into the locking position.

[0007] Furthermore, the lock assembly also includes a connecting pin fixedly inserted into the second base, the locking pin structure having a groove into which the connecting pin extends.

[0008] Furthermore, the locking pin structure includes a pin body and a reset member. The pin body is disposed in the mounting hole and has an inner cavity. A sliding groove is configured to communicate with the inner cavity. The reset member is disposed in the inner cavity. One end of the reset member abuts against the connecting pin, and the other end of the reset member abuts against the wall of the inner cavity.

[0009] Furthermore, the lock assembly also includes a limiting member and a locking member. The limiting member is disposed on the operating member, and the locking member is disposed on the first base. The limiting member has a limiting state and a releasing state. When the limiting member is in the limiting state, the limiting member and the locking member stop each other, so that the operating member and the limiting member stop each other to restrict the rotation of the operating member, thereby keeping the bolt in the locked position. When the limiting member is in the releasing state, the limiting member and the locking member separate, so that the limiting member can rotate synchronously with the operating member.

[0010] Furthermore, the latching member has a latching surface, and the limiting member is rotatably mounted on the operating member. The limiting member includes a stop arm and a limiting arm arranged at an angle. When the limiting member is in the limiting state, the free end of the limiting arm cooperates with the latching surface to stop the operating member. When the limiting member is in the released state, the free end of the limiting arm is misaligned with the latching surface, thereby allowing the operating member to rotate.

[0011] Furthermore, the lock assembly also includes a torsion spring disposed between the operating member and the limiting member, so that the limiting member is kept in the limiting state.

[0012] Furthermore, the extension direction of the snap-fit ​​surface is consistent with the rotation direction of the limiting member.

[0013] Furthermore, the operating component includes a lever and a pivot rotatably mounted on the lever, with a locking tongue connected to the pivot, the pivot being offset from the rotation axis of the lever.

[0014] According to another aspect of the present invention, an LED display device is provided, comprising a first LED housing, a second LED housing, and a locking assembly disposed between the first LED housing and the second LED housing, wherein the locking assembly is the locking assembly described above.

[0015] Applying the technical solution of this invention, the locking assembly is positioned between the first and second LED housings. The user rotates an operating component to move the latch between the locked and unlocked positions. When connecting the two LED housings, the user rotates the operating component, causing the latch to switch to the locked position. In the locked position, the latch engages with the locking slot of the second housing, moving the locking pin structure so that it inserts into the lock hole of the first housing, thus achieving a dual locking mechanism of the latch and locking pin. This design utilizes the linkage effect of the latch and locking pin structure. When the latch engages with the locking slot, the locking pin structure is pushed by the latch, moving along a set trajectory to the lock hole position, thereby completing the second level of locking. Conversely, when the latch is in the unlocked position, the locking pin structure retracts from the lock hole, achieving unlocking. This design overcomes the shortcomings of insufficient stability in single latch or latch connections without increasing the user's operating steps, improving the reliability and stability of the connection between LED housings, ensuring the overall structural strength of the LED display device, and balancing operational complexity and connection strength. Therefore, the technical solution of this application can effectively solve the problem of insufficient connection stability in related technologies. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the LED display device according to the present invention is shown;

[0018] Figure 2 It shows Figure 1 An enlarged schematic diagram of point A on the LED display device;

[0019] Figure 3 It shows Figure 1 A cross-sectional schematic diagram of a portion of the structure of an LED display device;

[0020] Figure 4 It shows Figure 1 A three-dimensional structural diagram of the second seat, locking position, and locking pin structure of the LED display device;

[0021] Figure 5 It shows Figure 1 A three-dimensional structural diagram of the second seat, locking position, and locking pin structure of the LED display device from another angle;

[0022] Figure 6 It shows Figure 1 A three-dimensional structural diagram of the first base, operating component, locking tongue, limiting component, and snap-fit ​​component of the LED display device;

[0023] Figure 7 It shows Figure 1 A three-dimensional structural diagram of the first base, operating component, locking tongue, limiting component, and snap-fit ​​component of the LED display device from another angle.

[0024] The above figures include the following reference numerals:

[0025] 1. First LED cabinet; 2. Second LED cabinet;

[0026] 10. First seat; 11. Keyhole;

[0027] 20. Operating component; 21. Rotating rod; 22. Rotating shaft;

[0028] 30. Locking tongue;

[0029] 40. Second seat; 41. Groove; 42. Top surface; 43. Mounting hole;

[0030] 50. Positioning;

[0031] 60. Locking pin structure; 61. Slide groove; 62. Pin body; 621. Inner cavity; 63. Reset component;

[0032] 71. Limiting component; 711. Stop arm; 712. Limiting arm; 72. Snap-fit ​​component; 721. Snap-fit ​​surface. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0035] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0036] like Figures 1 to 7 As shown, this application provides a lock assembly disposed between a first LED housing 1 and a second LED housing 2. An embodiment of the lock assembly of this application includes: a first base 10, an operating member 20, a latch 30, a second base 40, a locking position 50, and a locking pin structure 60. The first base 10 is disposed on the first LED housing 1 and has a lock hole 11. The operating member 20 is rotatably disposed on the first base 10. The latch 30 has a locked position and an unlocked position, and the latch 30 is connected to the operating member 20. The rotation of the 20 causes the locking tongue 30 to move between the locked and unlocked positions; the second seat 40 is set on the second LED box 2; the locking position 50 is set on the second seat 40; the locking pin structure 60 is movably set on the second seat 40. When the locking tongue 30 is in the locked position, the locking tongue 30 is locked into the locking position 50, and the locking tongue 30 drives the locking pin structure 60 to move and insert the locking pin structure 60 into the lock hole 11. When the locking tongue 30 is in the unlocked position, the locking tongue 30 is disengaged from the locking position 50, and the locking pin structure 60 is disengaged from the lock hole 11.

[0037] Applying the technical solution of this embodiment, the lock assembly is positioned between the first LED housing 1 and the second LED housing 2. The user rotates the operating component 20 to move the latch 30 between the locked and unlocked positions. When the user needs to connect the two LED housings, they rotate the operating component 20, causing the latch 30 to switch to the locked position. When the latch 30 is in the locked position, it engages with the locking position 50 of the second base 40, and moves the locking pin structure 60, inserting it into the lock hole 11 of the first base 10. This achieves a dual locking mechanism using the latch 30 and the locking pin structure 60. This design utilizes the linkage effect between the latch 30 and the locking pin structure 60. When the latch 30 engages with the locking position 50, the locking pin structure 60 is pushed by the latch 30, moving along a set trajectory to the lock hole 11, thus completing the second level of locking. Conversely, when the latch 30 is in the unlocked position, the locking pin structure 60 disengages from the lock hole 11, achieving unlocking. The aforementioned design overcomes the shortcomings of insufficient stability in single-latch or latch connections without increasing user operation steps, improving the reliability and stability of connections between LED cabinets, ensuring the overall structural strength of the LED display device, and balancing operational complexity and connection strength. Therefore, the technical solution of this embodiment can effectively solve the problem of insufficient connection stability in related technologies.

[0038] like Figures 1 to 7 As shown, a groove 41 is provided on the side of the second seat 40 away from the first seat 10. The groove 41 is spaced apart from the top surface 42 of the second seat 40, and the locking position 50 is formed in the groove 41. In this embodiment, by providing the groove 41, the locking position 50 can be formed therein. This design not only simplifies the structure of the locking position 50, but also ensures a stable engagement between the locking position 50 and the bolt 30, enhancing the connection effect of the lock assembly. When the bolt 30 is in the locked position, it can accurately engage with the locking position 50 in the groove 41, ensuring the stable positioning of the bolt 30, thereby achieving a tight connection between the first LED housing 1 and the second LED housing 2.

[0039] like Figures 1 to 7As shown, the second base 40 is provided with a mounting hole 43. The first end of the mounting hole 43 communicates with the locking position 50, and the second end of the mounting hole 43 can be correspondingly set with the lock hole 11. The locking pin structure 60 is set in the mounting hole 43 and can extend into the locking position 50. In this embodiment, this design ensures that when the locking tongue 30 is in the locked position and locked into the locking position 50, the locking pin structure 60 can be driven by the locking tongue 30, move along the extension direction of the mounting hole 43 and insert into the lock hole 11, thereby realizing double locking between the first LED cabinet 1 and the second LED cabinet 2. In addition, this design does not increase the operator's operation steps, so that the operator does not need to operate the locking pin structure 60 separately. When the locking tongue 30 switches to the unlocked position and exits the locking position 50, the locking pin structure 60 can exit from the lock hole 11, releasing the locked state and facilitating the disassembly of the cabinet. Through this structure, the stability and security of the LED cabinet connection can be effectively enhanced, ensuring that the cabinet will not be accidentally separated during use, while simplifying the locking and unlocking operation steps and improving work efficiency.

[0040] like Figures 1 to 7 As shown, the lock assembly also includes a connecting pin fixedly inserted into the second base 40. The locking pin structure 60 has a groove 61 into which the connecting pin extends. In this embodiment, this design ensures the stable guidance and movement of the locking pin structure 60 on the second base 40. The cooperation between the connecting pin and the groove 61 restricts the movement trajectory of the locking pin structure 60, causing it to move along a preset path. This prevents the locking pin structure 60 from deviating or derailing during operation, thereby ensuring the accuracy of alignment and insertion between the locking pin structure 60 and the lock hole 11, and improving the reliability of the connection. In addition, the connecting pin also prevents the locking pin structure 60 from coming out of the mounting hole 43. Furthermore, the simple structure of the groove 61 and the connecting pin facilitates assembly and maintenance, further enhancing the practicality and durability of the lock assembly.

[0041] like Figures 1 to 7As shown, the locking pin structure 60 includes a pin 62 and a reset member 63. The pin 62 is disposed within the mounting hole 43 and has an inner cavity 621. A sliding groove 61 communicates with the inner cavity 621. The reset member 63 is disposed within the inner cavity 621, with one end abutting against the connecting pin and the other end abutting against the wall of the inner cavity 621. In this embodiment, this design ensures that the pin 62 can move along the mounting hole 43 under the action of the latch 30, thereby achieving insertion or disengagement from the lock hole 11. The reset member 63 acts as an elastic range. When the latch 30 is in the unlocked position, the reset member 63 causes the pin 62 to move away from the first seat 10 and automatically retract to the initial position, thereby enabling the locking pin structure 60 to smoothly exit from the lock hole 11. The reset member 63 can be a compression spring structure. Furthermore, the movable design of the locking pin structure 60 and its cooperation with the reset member 63 facilitate subsequent maintenance and adjustment. No additional tools are required to quickly switch the state of the lock components, improving the overall efficiency and user experience of the device. In other embodiments, the reset member can be disposed within the keyhole to apply a force to the pin in a direction away from the first seat.

[0042] like Figures 1 to 7 As shown, the lock assembly also includes a limiting member 71 and a locking member 72. The limiting member 71 is disposed on the operating member 20, and the locking member 72 is disposed on the first base 10. The limiting member 71 has a limiting state and a releasing state. When the limiting member 71 is in the limiting state, the limiting member 71 and the locking member 72 cooperate to stop the operation member 20, thereby limiting the rotation of the operation member 20 and keeping the bolt 30 in the locked position. When the limiting member 71 is in the releasing state, the limiting member 71 and the locking member 72 separate, so that the limiting member 71 can rotate synchronously with the operation member 20. In this embodiment, the lock assembly integrates the limiting member 71 and the locking member 72. The limiting member 71 is mounted on the operating member 20, while the locking member 72 is fixed on the first base 10. The limiting member 71 can switch between a limiting state and a released state. When in the limiting state, the limiting member 71 and the locking member 72 form a stop, preventing the rotation of the operating member 20, thereby fixing the latch 30 in the locked position and ensuring a firm and reliable connection between the LED cabinets. When unlocking is required, the operator manually switches the limiting member 71 to the released state. At this time, the limiting member 71 separates from the locking member 72, and the operating member 20 is no longer restricted and can rotate freely, thereby moving the latch 30 to the unlocked position and unlocking the connection between the LED cabinets. This design not only simplifies the operation steps but also improves the stability and security of the lock assembly. In addition, by setting the limiting member 71 and the locking member 72, this lock assembly can effectively prevent the position of the latch 30 from changing due to accidental operation, thereby avoiding the problem of unstable connection between LED cabinets and improving the overall performance of the LED display device.

[0043] like Figures 1 to 7 As shown, the latching member 72 has a latching surface 721, and the limiting member 71 is rotatably disposed on the operating member 20. The limiting member 71 includes a stop arm 711 and a limiting arm 712 disposed at an included angle. When the limiting member 71 is in the limiting state, the free end of the limiting arm 712 engages with the latching surface 721 to stop the operating member 20; when the limiting member 71 is in the released state, the free end of the limiting arm 712 is misaligned with the latching surface 721, thereby allowing the operating member 20 to rotate. In this embodiment, the latching surface 721 of the latching member 72 forms a cooperating structure with the limiting arm 712 and the stop arm 711 of the limiting member 71, wherein the limiting member 71 can rotate relative to the operating member 20. Specifically, when the limiting member 71 is in the limited position, the free end of the limiting arm 712 engages with the locking surface 721, preventing the operating member 20 from rotating. This keeps the bolt 30 in the locked position, thus achieving the locking function of the lock assembly. Conversely, when the limiting member 71 is in the released position, the free end of the limiting arm 712 is misaligned with the locking surface 721. This misalignment allows the operating member 20 to rotate freely, enabling the bolt 30 to move to the unlocked position and completing the unlocking action of the lock assembly. Through the cooperation of the limiting member 71 and the locking member 72, the state of the bolt 30 can be effectively controlled, ensuring the stability and security of the connection between the LED housings.

[0044] like Figures 1 to 7 As shown, the lock assembly also includes a torsion spring disposed between the operating member 20 and the limiting member 71, so that the limiting member 71 is held in a limited state. In this embodiment, the torsion spring, through its inherent elastic properties, keeps the free end of the limiting arm 712 in stop engagement with the engaging surface 721.

[0045] like Figures 1 to 7 As shown, the extension direction of the locking surface 721 is consistent with the rotation direction of the limiting member 71. Specifically, "the extension direction of the locking surface 721 is consistent with the rotation direction of the limiting member 71" does not mean that the extension direction of the locking surface 721 is exactly the same as the rotation direction of the limiting member 71 (if they were exactly the same, the locking surface 721 would lose its stopping effect). The extension direction of the locking surface 721 is consistent with the rotation direction of the limiting member 71, but with a slight angle. This allows the locking surface 721 to both lock the limiting arm 712 and allow the limiting arm 712 to pass over the locking surface 721 when the user applies slight force to it.

[0046] like Figures 1 to 7As shown, the operating component 20 includes a rotating rod 21 and a rotating shaft 22 rotatably mounted on the rotating rod 21. The latch 30 is connected to the rotating shaft 22, which is offset from the rotation axis of the rotating rod 21. In this embodiment, this design allows the latch 30 to generate an eccentric movement when the operating component 20 rotates, thereby achieving a smooth switching between the locked and unlocked positions. Through the eccentric connection between the rotating shaft 22 and the latch 30, the latch 30 can more stably and reliably engage or disengage from the locking position 50 when the operating component 20 rotates, thereby driving the movement of the locking pin structure 60 to complete the insertion or separation of the locking pin structure 60 from the lock hole 11, enhancing the overall stability and operational smoothness of the lock assembly. The eccentrically mounted rotating shaft 22 also provides additional torque, making the latch 30 more stable in the locked position and less prone to accidental unlocking due to minor external impacts, thus improving the safety and connection stability of the LED display device.

[0047] by Figure 3 For example, the following are instructions for using lock components: Figure 3 In the locked position, the latch 30 is engaged with the limiting member 71 and the locking member 72. Without external force, the limiting member 71 cannot rotate, thus preventing the operating member 20 from rotating clockwise, and keeping the latch 30 in the locked position. When it is necessary to separate the first LED box 1 and the second LED box 2, the user presses the stop arm 711, causing the stop arm 711 to rotate counterclockwise, which in turn causes the limiting arm 712 to rotate clockwise. This allows the free end of the limiting arm 712 to move upward past the locking surface 721, allowing the operating member 20 to rotate freely. The user rotates the operating member 20 clockwise to switch the latch 30 to the unlocked position; conversely, to switch the latch 30 to the locked position, the user rotates the operating member 20 counterclockwise.

[0048] This application also provides an LED display device, which includes a first LED housing 1, a second LED housing 2, and a locking assembly disposed between the first LED housing 1 and the second LED housing 2, wherein the locking assembly is the aforementioned locking assembly. The aforementioned locking assembly can effectively solve the problem of insufficient connection stability in related technologies, and the LED display device having the aforementioned locking assembly also has the aforementioned advantages.

[0049] In the description of this invention, it should be understood that "a plurality of" means two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing the invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0050] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0051] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A lock assembly disposed between a first LED housing (1) and a second LED housing (2), characterized in that, The lock assembly includes: The first base (10) is disposed on the first LED box (1), and the first base (10) is provided with a lock hole (11). The operating element (20) is rotatably mounted on the first seat (10); The locking tongue (30) has a locked position and an unlocked position. The locking tongue (30) is connected to the operating member (20). The operating member (20) rotates to drive the locking tongue (30) to move between the locked position and the unlocked position. The second seat (40) is mounted on the second LED box (2); The locking position (50) is set on the second seat (40); A locking pin structure (60) is movably disposed on the second seat (40). When the locking tongue (30) is in the locked position, the locking tongue (30) engages with the locking position (50), and the locking tongue (30) drives the locking pin structure (60) to move and insert the locking pin structure (60) into the lock hole (11). When the locking tongue (30) is in the unlocked position, the locking tongue (30) exits the locking position (50), and the locking pin structure (60) exits from the lock hole (11).

2. The lock assembly according to claim 1, characterized in that, The second seat (40) has a groove (41) on the side away from the first seat (10), the groove (41) is spaced apart from the top surface (42) of the second seat (40), and the locking position (50) is formed in the groove (41).

3. The lock assembly according to claim 1, characterized in that, The second seat (40) is provided with a mounting hole (43), the first end of the mounting hole (43) is connected to the locking position (50), the second end of the mounting hole (43) can be correspondingly set with the lock hole (11), and the locking pin structure (60) is set in the mounting hole (43) and can extend into the locking position (50).

4. The lock assembly according to claim 3, characterized in that, The lock assembly also includes a connecting pin fixedly inserted through the second base (40), the lock pin structure (60) having a groove (61), and the connecting pin extending into the groove (61).

5. The lock assembly according to claim 4, characterized in that, The locking pin structure (60) includes a pin body (62) and a reset member (63). The pin body (62) is disposed in the mounting hole (43) and has an inner cavity (621). The sliding groove (61) is connected to the inner cavity (621). The reset member (63) is disposed in the inner cavity (621). One end of the reset member (63) abuts against the connecting pin, and the other end of the reset member (63) abuts against the wall of the inner cavity (621).

6. The lock assembly according to any one of claims 1 to 5, characterized in that, The lock assembly further includes a limiting member (71) and a locking member (72). The limiting member (71) is disposed on the operating member (20), and the locking member (72) is disposed on the first seat (10). The limiting member (71) has a limiting state and a releasing state. When the limiting member (71) is in the limiting state, the limiting member (71) and the locking member (72) stop and cooperate, so that the operating member (20) and the limiting member (71) stop and restrict the rotation of the operating member (20), thereby keeping the bolt (30) in the locked position. When the limiting member (71) is in the releasing state, the limiting member (71) and the locking member (72) separate, so that the limiting member (71) can rotate synchronously with the operating member (20).

7. The lock assembly according to claim 6, characterized in that, The latching member (72) has a latching surface (721), and the limiting member (71) is rotatably disposed on the operating member (20). The limiting member (71) includes a stop arm (711) and a limiting arm (712) disposed at an angle. When the limiting member (71) is in the limiting state, the free end of the limiting arm (712) is engaged with the latching surface (721) to stop the operating member (20). When the limiting member (71) is in the releasing state, the free end of the limiting arm (712) is misaligned with the latching surface (721) to allow the operating member (20) to rotate.

8. The lock assembly according to claim 7, characterized in that, The lock assembly also includes a torsion spring disposed between the operating member (20) and the limiting member (71) to keep the limiting member (71) in the limiting state.

9. The lock assembly according to claim 7, characterized in that, The extension direction of the snap-fit ​​surface (721) is consistent with the rotation direction of the limiting member (71).

10. The lock assembly according to any one of claims 1 to 5, characterized in that, The operating element (20) includes a rotating rod (21) and a rotating shaft (22) rotatably mounted on the rotating rod (21). The locking tongue (30) is connected to the rotating shaft (22), and the rotating shaft (22) is offset from the rotation axis of the rotating rod (21).

11. An LED display device, comprising a first LED housing (1), a second LED housing (2), and a locking assembly disposed between the first LED housing (1) and the second LED housing (2), characterized in that, The lock assembly is the lock assembly according to any one of claims 1 to 10.

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