Latch and spliced screen

Abstract

The present invention discloses a latch and a splicing screen. The latch is used to lock a first component and a second component, and includes: a first locking portion for being mounted on the first component, the first locking portion having: a first rotating member rotatably mounted on the first component through a first mounting portion; a first arm portion provided on the first rotating member and extending towards the outside of the first rotating member, and swinging as the first rotating member rotates. A first engaging member is provided at one end of the first arm portion away from the first rotating member; a first elastic member, one end abuts against the first component, and the other end abuts against the first locking portion, applying a force to the first rotating member in a first direction; the first engaging member is clamped to a first clamping portion provided on the second component by the force of the first elastic member as the first rotating member rotates in the first direction. The latch of the present invention can quickly complete the splicing of two components.

Description

Technical Field

[0001] The present invention relates to, but is not limited to, the technical field of locking devices, and particularly relates to a latch. In addition, the present invention also relates to a splicing screen having the latch. Background Art

[0002] LED display screens are widely used in indoor, commercial performance, advertising and other occasions due to their excellent display effects. Large splicing screens are generally composed of multiple independent display screen components spliced together. Known splicing screens are generally spliced by front splicing or rear splicing to form multiple display screen components. When splicing at the back, it can be spliced as a whole without disassembling the modules of the display screen components. When installing at the front, it is necessary to disassemble the modules installed on the box body and then lock and splice the box body. After the box body is spliced, the modules are assembled again. In this process, due to multiple disassembly and assembly of the modules, not only the labor cost and time cost are increased, but also the lights at the edges of the modules are easily damaged. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present invention provides a latch that can quickly complete the splicing of two components.

[0004] In addition, the present invention also provides a splicing screen having such a latch.

[0005] The latch according to the first aspect embodiment of the present invention is used to lock a first component and a second component, and includes: a first locking portion for being installed on the first component, the first locking portion having: a first rotating member rotatably installed on the first component through a first installation portion; a first arm portion provided on the first rotating member and extending toward the outside of the first rotating member, and swinging as the first rotating member rotates, a first engaging member being provided at one end of the first arm portion away from the first rotating member; a first elastic member having one end abutted against the first component and the other end abutted against the first locking portion, and applying a force to the first rotating member in a first direction; the first engaging member is clamped to a first clamping portion provided on the second component by the force of the first elastic member as the first rotating member rotates in the first direction.

[0006] The latch according to the present invention has at least the following beneficial effects: Since when splicing the first component and the second component, the first arm portion provided on the first component, as the first rotating member rotates in the first direction, enables the first engaging member provided on the first arm portion to be clamped to the first clamping portion provided on the second component by the force of the first elastic member, therefore, the splicing of the two components can be quickly completed.

[0007] In some embodiments, the first rotating member is provided with a second latching portion, and the second latching portion rotates with the first rotating member in the first direction and latches onto a second latching member provided on the second component.

[0008] In some embodiments, the first arm portion is disposed on one side in the radial direction of the first mounting portion, and the second latching portion is disposed on the other side in the radial direction of the first mounting portion and opposite to the first arm portion.

[0009] In some embodiments, the first latching portion and the second latching member are respectively rotatably disposed on the second component; the first latching portion can latch the first latching member when rotating in the first direction; the second latching member can latch the second latching portion when rotating in the first direction.

[0010] In some embodiments, it further includes a second locking portion for mounting to the second component, the second locking portion has a second rotating member, the second rotating member is rotatably mounted to the first component through a second mounting portion, and the first latching portion is disposed on the second rotating member.

[0011] In some embodiments, the second locking portion further includes a second arm portion, the second arm portion is disposed on the second rotating member and extends toward the outside of the second rotating member, and swings as the second rotating member rotates; the second latching member is disposed at one end of the second arm portion away from the second rotating member.

[0012] In some embodiments, the second arm portion is disposed on one side in the radial direction of the second mounting portion, and the first latching portion is disposed on the other side in the radial direction of the second mounting portion and opposite to the second arm portion.

[0013] In some embodiments, the second locking portion further includes a second elastic member, one end of the second elastic member abuts against the second component, and the other end abuts against the second locking portion, applying a force to the second rotating member in the first direction.

[0014] In some embodiments, the first rotating member is configured to be driven to rotate in a second direction opposite to the first direction through the first mounting portion; and / or the second rotating member is configured to be driven to rotate in the second direction through the second mounting portion.

[0015] The splicing screen according to the embodiment of the second aspect of the present invention includes at least a first display screen assembly and a second display screen assembly that are spliced with each other. The first display screen assembly has a first component, and the second display screen assembly has a second component. It further includes: the lock according to any one of the above, and the first display screen assembly and the second display screen assembly are locked through the lock.

[0016] The splicing screen according to the present invention has at least the following beneficial effects: When splicing the first display screen component and the second display screen component, the first arm portion provided on the first display screen component rotates in the first direction along with the first rotating member, so that the first engaging member provided on the first arm portion can elastically engage with the first engaging portion provided on the second display screen component. Therefore, the splicing of the two display screen components can be completed quickly.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of an embodiment of the latch of the present invention.

[0020] Figure 2 is Figure 1 a working schematic diagram during the process of the latch of the present invention engaging the first component and the second component.

[0021] Figure 3 is a schematic diagram of the latch after the first component and the second component are engaged.

[0022] Figure 4 is Figure 1 a three-dimensional view of the first locking portion of the latch of the present invention.

[0023] Figure 5 is Figure 4 an exploded view of the first locking portion of the latch of the present invention.

[0024] Figure 6 is a simple schematic diagram of an embodiment of the splicing screen with the latch of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that with respect to the orientation description, such as up, down, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as limiting the present invention.

[0027] In the description of the present invention, "a plurality of" means more than two. If the first and second are described, it is only for the purpose of distinguishing technical features, and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0029] Figure 1 is a schematic diagram of an embodiment of the buckle 100. Figure 2 is a working schematic diagram during the process that the buckle 100 clamps the first component 210 and the second component 220. Figure 3 is a schematic diagram of the buckle 100 after clamping the first component 210 and the second component 220. Refer to Figures 1 to 3 According to the buckle 100 of the first aspect embodiment of the present invention, for locking the first component 210 and the second component 220, it includes: a first locking portion 110 for being installed on the first component 210, and the first locking portion 110 has: a first rotating member 120, a first arm portion 130, and a first elastic member 140. Wherein, the first rotating member 120 is rotatably installed on the first component 210 through a first installation portion 121; the first arm portion 130 is arranged on the first rotating member 120 and extends towards the outside of the first rotating member 120, and swings as the first rotating member 120 rotates; at one end of the first arm portion 130 away from the first rotating member 120, a first engaging member 131 is arranged; one end of the first elastic member 140 abuts against the first component 210, and one end abuts against the first locking portion 110, and applies a force to the first rotating member 120 in the first direction 101; the first engaging member 131 is clamped to the first clamping portion 162 provided on the second component 220 by the force of the first elastic member 140 as the first rotating member 120 rotates in the first direction 101.

[0030] In this embodiment, when the first component 210 and the second component 220 are spliced, since the first arm portion 130 provided on the first component 210 rotates in the first direction 101 (for example, counterclockwise) along with the first rotating member 120, the first engaging member 131 provided on the first arm portion 130 can be clamped to the first clamping portion 162 provided on the second component 220 by the force of the first elastic member 140. Therefore, the splicing of the two components can be completed quickly.

[0031] Specifically, when splicing the first component 210 and the second component 220, the first clamping member 131 abuts against the first clamping portion 162. As the first component 210 and the second component 220 approach each other, the first clamping member 131 is restricted by the first clamping portion 162 and swings in the second direction 102 (e.g., clockwise) opposite to the first direction 101, that is, the first clamping member 131 swings against the force of the first elastic member 140. When the first component 210 and the second component 220 are in contact, the first clamping member 131 reaches the first clamping portion 162 and is driven by the first elastic member 140 to rotate, so as to be elastically clamped to the first clamping portion 162. Thus, the locking and splicing of the first component 210 and the second component 220 can be completed quickly and reliably.

[0032] It can be conceived that, in order to keep the first rotating member 120 in a preset position along the first direction 101, for example, in a position where it can be clamped to the first clamping portion 162, an abutting block 123 can be provided on the first rotating member 120. The abutting block 123 abuts against the first component 210 by the force applied by the first elastic member 140. Thus, the first rotating member 120 can be kept in the preset position, and it is ensured that the first arm portion 130 having the first clamping member 131 is also kept in the preset position.

[0033] It can be conceived that as long as the first clamping member 131 can overcome the force of the first elastic member 140 and be elastically clamped to the first clamping portion 162, the shape of the first clamping portion 162 is not particularly limited. For example, at one end of the first clamping portion 162 facing the first clamping member 131, a first guiding portion 163 for guiding the first clamping member 131 can be provided. The first guiding portion 163 can be various structures such as an inclined surface or an arc surface. Before the first clamping member 131 reaches the first clamping portion 162, the first clamping member 131 first abuts against the first guiding portion 163, and as the first component 210 and the second component 220 approach further, it is driven by the first guiding portion 163, so that the first rotating member 120 rotates in the second direction 102. When the first component 210 and the second component 220 are in contact, the first clamping member 131 reaches the first clamping portion 162 and is driven by the first elastic member 140 to rotate, so as to be clamped to the first clamping portion 162.

[0034] It can be conceived that the first component 210 and the second component 220 are not particularly limited as long as they are components that need to be spliced or locked to each other. For example, they can be two adjacent LED display screen components themselves for splicing into the LED splicing screen 200, or the boxes or modules of these LED display screen components.

[0035] It can be conceived that, although the specific shape of the first rotating member 120 is not particularly limited as long as it can rotate relative to the first component 210, the first rotating member 120 can be set to be generally disc-shaped. The first mounting portion 121 can include a rotating shaft 124 provided in the middle of the disc-shaped first rotating member 120. The first rotating member 120 is inserted into the first component 210 through the rotating shaft 124 and rotates. In addition, it can be conceived that as long as the first rotating member 120 can be fixed to the first component 210, various mounting structures can be selected. For example, the first rotating member 120 can be restricted by a locking cover plate (not shown) to prevent the first rotating member 120 from axially falling off relative to the first component 210 along the rotating shaft 124.

[0036] It can be conceived that as long as the first elastic member 140 can apply a force to the first rotating member 120 to elastically snap the first engaging member 131 to the first engaging portion 162, its type is not particularly limited. For example, it can be a spring such as a torsion spring, a circular helical spring, a tension spring, etc., or an elastic flexible member such as a rubber band, a belt, etc. For example, the first elastic member 140 is selected as a torsion spring. The torsion spring is sleeved on the first mounting portion 121 of the first rotating member 120, that is, the rotating shaft 124. One end 141 of the swing arm of the torsion spring abuts against the first component 210, and the other end 142 of the torsion spring abuts against the first rotating member 120 of the first locking portion 110. Thus, it can be realized that the first rotating member 120 is driven to rotate by the first elastic member 140 such as a torsion spring. By using a torsion spring as the first elastic member 140, the mounting structure of the first locking portion 110 can be made more compact, and the first rotating member 120 can rotate smoothly around the first mounting portion 121.

[0037] It can be conceived that as long as it can swing with the rotation of the first rotating member 120, the manner in which the first arm portion 130 is provided on the first rotating member 120 is not limited. For example, the first arm portion 130 can be mounted on the side surface of the first rotating member 120 by a locking method and extend toward the outside of the first rotating member 120 in a direction substantially parallel to the radial direction of the first rotating member 120. In addition, the first arm portion 130 can be provided only on one side surface of the first rotating member 120, or can be provided on both side surfaces in the axial direction of the first rotating member 120. Further, the first arm portion 130 can also be integrally formed with the first rotating member 120 and extend toward the outside of the first rotating member 120. It should be noted that here, the outside of the first rotating member 120 relative to the rotation center of the first rotating member 120, for example, with respect to the rotating shaft 124 as the first mounting portion 121, as long as the first arm portion 130 extends in a direction away from the rotation center of the first rotating member 120, it can be understood that the first arm portion 130 extends toward the outside of the first rotating member 120.

[0038] It can be conceived that as long as it can be set at the end of the first arm portion 130 far from the first rotating member 120 (also referred to as the second end portion 132), the setting method of the first engaging member 131 is not limited. For example, a cylindrical pin 133 can be inserted at the second end portion 132 as the first engaging member 131. Taking the first arm portion 130 being arranged on both side surfaces of the axial direction of the first rotating member 120 as an example, specifically, the first arm portion 130 includes a first connecting rod 134 and a second connecting rod 135 which are respectively strip-shaped. The first connecting rod 134 and the second connecting rod 135 are respectively locked to both sides of the axial direction of the first rotating member 120 and extend in a direction substantially parallel to the radial direction of the first rotating member 120. Both ends of the cylindrical pin 133 are respectively mounted on the first connecting rod 134 and the second connecting rod 135, thereby forming the first engaging member 131. By setting the cylindrical pin 133 with an arc surface as the first engaging member 131, the first engaging member 131 can smoothly slide to the first engaging portion 162.

[0039] It can be conceived that as long as the first engaging member 131 can be engaged, the setting method of the first engaging portion 162 is not limited. For example, the first engaging portion 162 can be provided with a receiving groove 164 for receiving the first engaging member 131, and the shape of the receiving groove 164 is adapted to the shape of the first engaging member 131. Thus, the first engaging member 131 can be reliably received in the receiving groove 164. For example, the first engaging member 131 is in the shape of a cylindrical pin, and correspondingly, the receiving groove 164 is also provided with an arc surface. In addition, in order to enable the first engaging member 131 to adapt in the receiving groove 164, the notch of the receiving groove 164 is slightly larger than the diameter of the cylindrical pin 133.

[0040] Figure 4 is a perspective view of the first locking portion 110 of the buckle 100, Figure 5 is an exploded view reference of the first locking portion 110 Figure 4 、 Figure 5 In some embodiments, in order to more reliably lock the first component 210 and the second component 220, the first rotating member 120 is provided with a second engaging portion 122. As the first rotating member 120 rotates in the first direction 101, the second engaging portion 122 engages with the second engaging member 171 provided on the second component 220. Specifically, as long as they can engage with each other, the structures of the second engaging portion 122 and the second engaging member 171 are not particularly limited. For example, the second engaging portion 122 can be set with reference to the structure of the first engaging portion 162. Correspondingly, the second engaging member 171 can also be set with reference to the structure of the first engaging member 131. By providing the second engaging portion 122 on the first rotating member 120, when the first rotating member 120 rotates, there are multiple engaging positions, so that the first component 210 and the second component 220 can be more reliably locked.

[0041] In some embodiments, to easily achieve that the first card member 131 and the second latching portion 122 latch the first latching portion 162 and the second card member 171 respectively, the first arm portion 130 is disposed on one side in the radial direction of the first mounting portion 121, and the second latching portion 122 is disposed on the other side in the radial direction of the first mounting portion 121 and opposite to the first arm portion 130. Specifically, when the first arm portion 130 and the second latching portion 122 rotate around the rotation center of the first mounting portion 121 respectively, they latch the first latching portion 162 and the second card member 171 respectively (when rotating in the first direction 101), or disengage from the first latching portion 162 and the second card member 171 respectively (when rotating in the second direction 102). In addition, the distance between the mounting position of the first arm portion 130 and the rotation center of the first mounting portion 121, and the distance between the second latching portion 122 and the rotation center of the first mounting portion 121 can be set to be the same. Additionally, the included angle R between the straight line connecting the mounting position of the first arm portion 130 and the rotation center of the first mounting portion 121, and the straight line connecting the second latching portion 122 and the rotation center of the first mounting portion 121 can be set to be less than or equal to 180°, for example, it can be set to 150° to 180°. Thereby, it can be easily achieved that while the first card member 131 latches the first latching portion 162, the second latching portion 122 also latches the second card member 171.

[0042] In some embodiments, the first latching portion 162 and the second card member 171 are respectively rotatably disposed on the second component 220; the first latching portion 162 can latch the first card member 131 when rotating in the first direction 101; the second card member 171 can latch the second latching portion 122 when rotating in the first direction 101. It should be noted that when rotating the first latching portion 162 and the second card member 171, they can be rotated separately or simultaneously. Thereby, it can be achieved that when rotating at least one of the first locking portion 110 provided on the first component 210, the first latching portion 162 and the second card member 171 provided on the second component 220, the first component 210 and the second component 220 can be locked, and thereby, the workability of splicing the first component 210 and the second component 220 can be improved.

[0043] Continue to refer to Figures 1 to 3, although the rotation mode of the first locking part 162 is not particularly limited as long as the first locking part 162 can be rotated to lock the first locking member 131, in some embodiments, in order to easily rotate the first locking part 162, for example, it may further include a second locking part 150 for mounting to the second component 220. The second locking part 150 has a second rotating member 160, and the second rotating member 160 is rotatably mounted to the first component 210 through a second mounting part 161. The first locking part 162 is provided on the second rotating member 160. Specifically, the structures of the second rotating member 160 and the second mounting part 161 may be referred to the first rotating member 120 and will not be elaborated here in detail.

[0044] Although the rotation mode of the second locking member 171 is not particularly limited as long as the second locking member 171 can be rotated to lock the second locking part 122, in some embodiments, in order to easily rotate the second locking member 171, the second locking part 150 further includes a second arm part 170. The second arm part 170 is provided on the second rotating member 160 and extends toward the outside of the second rotating member 160, and swings as the second rotating member 160 rotates; the second locking member 171 is provided at one end of the second arm part 170 away from the second rotating member 160. Specifically, the structures of the second arm part 170 and the second locking member 171 may be referred to the first arm part 130 and the first locking member 131 and will not be elaborated here in detail. Thus, by respectively providing the first locking part 162 and the second locking member 171 (through the second arm part 170) on the second rotating member 160, it can be achieved that as long as the second rotating member 160 rotates, the first locking part 162 and the second locking member 171 can rotate simultaneously. Thus, the first component 210 and the second component 220 can be conveniently locked, and the workability of splicing the first component 210 and the second component 220 can be improved.

[0045] Similarly, in some embodiments, the second arm part 170 may also be provided on one side in the radial direction of the second mounting part 161, and the first locking part 162 may be provided on the other side in the radial direction of the second mounting part 161 opposite to the second arm part 170.

[0046] Similarly, in some embodiments, the second locking part 150 further includes a second elastic member 180. One end of the second elastic member 180 abuts against the second component 220, and the other end abuts against the second locking part 150, and applies a force to the second rotating member 160 in the first direction 101. Specifically, the second elastic member 180 may be referred to the first elastic member 140 and will not be elaborated here in detail.

[0047] Thus, by providing the first locking portion 110 and the second locking portion 150, installing the first locking portion 110 on the first component 210 and the second locking portion 150 on the second component 220, when the first component 210 and the second component 220 are joined together, as the first rotating member 120 rotates in the first direction 101 (e.g., counterclockwise), the first engaging member 131 provided on the first arm portion 130 can be engaged with the first engaging portion 162 provided on the second component 220 by the force of the first elastic member 140, and the second engaging portion 122 provided on the first rotating member 120 can be engaged with the second engaging member 171 provided on the second arm portion 170. Therefore, the joining of the two components can be completed quickly.

[0048] Furthermore, when the first engaging member 131 is engaged with the first engaging portion 162, the first engaging portion 162 applies a force to the first engaging member 131 in the second direction 102, i.e., the direction against the force of the first elastic member 140, and the second engaging portion 122 also applies a force to the second engaging member 171 in the second direction 102, i.e., the direction against the force of the second elastic member 180, causing the first rotating member 120 and the second rotating member 160 to rotate slightly in the second direction 102. Thus, the first engaging member 131 and the second engaging member 171 can reach the first engaging portion 162 and the second engaging portion 122 more easily, respectively, and after reaching the first engaging portion 162 and the second engaging portion 122, they can be engaged with the first engaging portion 162 and the second engaging portion 122 under the action of the first elastic member 140 and the second elastic member 180, thereby firmly locking the first component 210 and the second component 220.

[0049] In some embodiments, to easily unlock the first locking portion 110 and the second locking portion 150 so as to disengage the locked first component 210 and second component 220, the first rotating member 120 is arranged to be driven to rotate in a second direction 102 opposite to the first direction 101 through the first mounting portion 121. Specifically, a structure such as an internal hexagonal sleeve 125 or an external hexagonal protrusion can be provided at the end of the rotating shaft 124 serving as the first mounting portion 121. Correspondingly, a through hole 211 for avoiding the end of the rotating shaft 124 serving as the first mounting portion 121 is provided on the first component 210. After the first rotating member 120 is mounted on the first component 210, the end of the rotating shaft 124 can be exposed outside through the through hole 211. Thus, the first rotating member 120 can be screwed by, for example, an internal hexagonal wrench or other adjustable wrenches, so that the first rotating member 120 overcomes the elastic force of the first elastic member 140 and rotates in the second direction 102, thereby unlocking the first locking portion 110 and the second locking portion 150, and thus disengaging the first component 210 and the second component 220. It can be conceived that the second rotating member 160 can also be arranged to be driven to rotate in the second direction 102 through the second mounting portion 161. The rotating structure of the second rotating member 160 can be set with reference to the first rotating member 120 and will not be elaborated here in detail.

[0050] In addition, it can be conceived that when unlocking the first locking portion 110 and the second locking portion 150, either only the first locking portion 110 can be unlocked, or only the second locking portion 150 can be unlocked, or both the first locking portion 110 and the second locking portion 150 can be unlocked simultaneously. In addition, it should be noted that the first locking portion 110 and the second locking portion 150 can also be respectively arranged to be unlocked either on the front side (the side facing the operator in the installed state) or on the back side (the side facing away from the operator in the installed state).

[0051] Figure 6 is a simple schematic diagram of the splicing screen 200 with the buckle 100, referring to Figure 6 and with reference to Figures 1 to 5 According to the splicing screen 200 of the second aspect embodiment of the present invention, it at least includes a first display screen component and a second display screen component that are spliced with each other. The first display screen component has a first component 210, the second display screen component has a second component 220, and further includes: the buckle 100 of any one of the above, and the first display screen component and the second display screen component are locked by the buckle 100.

[0052] In this embodiment, when splicing the first display screen assembly and the second display screen assembly, the first arm portion 130 provided on the first display screen assembly rotates in the first direction 101 along with the first rotating member 120, so that the first engaging member 131 provided on the first arm portion 130 can elastically engage with the first engaging portion 162 provided on the second display screen assembly. Therefore, the splicing of the two display screen assemblies can be completed quickly.

[0053] It can be conceived that here, as long as the first component 210 and the second component 220 can be spliced with each other, they are not particularly limited and can be any components on the first display screen assembly and the second display screen assembly where the mounting buckle 100 is installed. For example, as the spliced components, the first component 210 can refer to the first display screen assembly itself, and the second component 220 can refer to the second display screen assembly itself; as the directly spliced components, the first component 210 can also be the cabinet of the first display screen assembly, and the second component 220 can also be the cabinet of the second display screen assembly.

[0054] It can be conceived that the display screen assembly can be a display screen assembly well-known in the field of LED display screen technology. For example, the display screen assembly includes a cabinet 201 as the first component 210 or the second component 220, a module (not shown) detachably installed on the cabinet, a lamp board (not shown) detachably installed on the module, etc. Among them, the first locking portion 110 and the first engaging portion 162 can be respectively provided on the cabinet 201 of the LED display screen assembly. For example, they can be installed on the side of the cabinet 201.

[0055] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A latch for locking a first component and a second component, characterized in that, Comprising: A first locking portion for mounting to the first component and a second locking portion for mounting to the second component, wherein the first locking portion has: A first rotating member rotatably mounted to the first component through a first mounting portion; A first arm portion provided on the first rotating member and extending outwardly of the first rotating member, swinging as the first rotating member rotates, and a first engaging member is provided at one end of the first arm portion away from the first rotating member; A first elastic member having one end abutting against the first component and one end abutting against the first locking portion, applying a force to the first rotating member in a first direction as the locking direction; The second locking portion has: A second rotating member rotatably mounted to the first component through a second mounting portion, the second rotating member being provided with a first engaging portion that rotates in the first direction as the second rotating member rotates; A second elastic member having one end abutting against the second component and one end abutting against the second locking portion, applying a force to the second rotating member in the first direction; The first engaging member is clamped to the first engaging portion of the second rotating member by the force of the first elastic member as the first rotating member rotates in the first direction; When the first component and the second component are spliced, when the first engaging member is clamped to the first engaging portion, the first engaging portion applies a force to the first engaging member in a direction to overcome the force of the first elastic member; The first rotating member is provided with an abutting block for keeping the first rotating member in a position where it can be clamped to the first engaging portion in the first direction; The first rotating member is provided with a second engaging portion that is clamped to a second engaging member provided on the second rotating member as the first rotating member rotates in the first direction; The first arm portion is provided on one side in the radial direction of the first mounting portion, and the second engaging portion is provided on the other side in the radial direction of the first mounting portion opposite to the first arm portion; The second locking portion further includes a second arm portion provided on the second rotating member and extending outwardly of the second rotating member, swinging as the second rotating member rotates, and the second engaging member is provided at one end of the second arm portion away from the second rotating member; The second arm portion is provided on one side in the radial direction of the second mounting portion, and the first engaging portion is provided on the other side in the radial direction of the second mounting portion opposite to the second arm portion; 2. The buckle according to claim 1, characterized in that, The first engaging portion and the second engaging member are respectively provided on the second rotating member and are rotatably provided to the second component; The first engaging portion can clamp the first engaging member when rotating in the first direction; The second engaging member can clamp the second engaging portion when rotating in the first direction.

3. The buckle according to claim 1, wherein: The first rotating member is arranged to be driven to rotate in a second direction opposite to the first direction through the first mounting portion; and / or The second rotating member is arranged to be driven to rotate in the second direction through the second mounting portion.

4. The splicing screen comprises at least a first display screen component and a second display screen component which are spliced with each other. The first display screen component has a first component, and the second display screen component has a second component. It is characterized in that Further comprising: The buckle according to any one of claims 1 to 3, wherein the first display screen assembly and the second display screen assembly are locked by the buckle.

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