A connecting lock and splicing screen

Abstract

The utility model belongs to LED display screen technical field, concretely is a kind of connecting lock and spliced screen, including lock body and lock seat, wherein:lock body includes lock bar and the operating part of fixed connection in the one end of lock bar, lock bar is through first connecting body, and operating part is located the side of first connecting body away from second connecting body;Lock seat includes fixed seat, rotatably set in the limiting piece of fixed seat and the lock bar clamping piece that can be translationally set in fixed seat along preset direction;Limiting piece includes driving part, when lock bar drives limiting piece to rotate to unlocking position, driving part links lock bar clamping piece and translates to unlocking direction, to release the locking of lock bar.The linkage mechanism between rotatable limiting piece and translational lock bar clamping piece is set in the present application, and the unlocking operation is simplified to single-step rotation operation.Operators only need to rotate operating part one action, i.e.can pass through the driving part of limiting piece link lock bar clamping piece translation, to complete unlocking.

Description

Technical Field

[0001] This utility model belongs to the field of LED display technology, specifically a connecting lock and splicing screen. Background Technology

[0002] In the field of large-scale display applications, video walls have become the mainstream solution for scenarios such as control centers, conference rooms, exhibitions, and outdoor advertising due to their flexible scalability and high-definition performance. They are typically composed of multiple independent display units (i.e., cabinets) spliced ​​together. To facilitate quick assembly, disassembly, and maintenance, the cabinets are generally mechanically fixed using specially designed connecting locks.

[0003] There are various locking schemes in existing technology. One common locking scheme is cumbersome to unlock, usually requiring two steps: first, the unlocking handle needs to be rotated to release the lock, and then another release mechanism on the lock body (such as a button or push rod) needs to be pressed to finally completely separate the male lock from the female seat. This multi-step operation significantly reduces work efficiency in situations requiring frequent installation and disassembly.

[0004] Therefore, how to provide a connection lock with a simpler structure and more convenient and faster operation to improve the installation and disassembly efficiency of splicing screens is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] To address the problems mentioned above, this utility model provides a compact connection lock and splicing screen that can be quickly unlocked by a single-step small-angle rotation.

[0006] The first objective of this utility model is to provide a connecting lock for detachably connecting a first connecting body and a second connecting body into one unit. The connecting lock includes a lock body and a lock seat, wherein the lock body is disposed on the first connecting body and the lock seat is disposed on the second connecting body, wherein:

[0007] The lock body includes a lock rod and an operating part fixedly connected to one end of the lock rod. The lock rod passes through the first connecting body, and the operating part is located on the side of the first connecting body opposite to the second connecting body.

[0008] The lock base includes a fixed base, a limiting member rotatably disposed within the fixed base, and a locking rod clamping member translatably disposed within the fixed base in a preset direction;

[0009] The limiting component includes a drive unit. When the locking rod drives the limiting component to rotate towards the unlocking position, the drive unit, in conjunction with the locking rod clamping component, moves in the unlocking direction to release the locking of the locking rod.

[0010] Furthermore, the limiting component also includes a connecting part, on which a connecting groove is formed that is adapted to the lock head of the locking rod. The rotation of the locking rod drives the limiting component to rotate through the connecting groove.

[0011] The drive unit is provided with a guide groove, the linkage unit extends into the guide groove, and moves to the locked position or the unlocked position as the guide groove rotates.

[0012] Furthermore, the fixed base is provided with a first groove and a rotating groove. The connecting part includes a pivot part that extends into the rotating groove and has the same shape as the rotating groove, and a drive connecting part located in the first groove. The drive part is fixedly disposed on the side wall of the drive connecting part.

[0013] Furthermore, a second groove is provided inside the fixed base. The second groove is located on the side of the first groove away from the rotating groove. The locking rod clamping member is slidably disposed in the second groove. A linkage part is fixed on the side of the locking rod clamping member facing the second groove.

[0014] Furthermore, a first elastic element is also provided in the second groove. One end of the first elastic element abuts against the side wall of the second groove, and the other end abuts against one end of the locking rod clamping element. The first elastic element causes the locking rod clamping element to move horizontally within the second groove.

[0015] Furthermore, the locking rod clamping member has an insert plate at the end opposite to the first elastic member, and the fixing seat has an opening at the corresponding position.

[0016] Furthermore, the lock head has a circumferential groove; the locking bar clamping member has a first through hole, and a locking hole is provided on one side wall of the first through hole. The lock head extends into the first through hole and rotates to move the locking bar clamping member outward. The locking hole clamps the circumferential groove on the lock head to lock the lock bar.

[0017] Furthermore, the rotation angle of the locking lever from the locked position to the unlocked position is less than or equal to 30°.

[0018] Furthermore, a second elastic element is fitted onto the locking bar, and the second elastic element is located between the operating part and the first connecting body; in the unlocked state, the second elastic element causes the locking head of the locking bar to retract into the first connecting body.

[0019] The second objective of this utility model is to provide a video wall, comprising a first video wall housing and a second video wall housing arranged adjacent to each other. The opposite connecting ends of the first video wall housing and the second video wall housing are respectively provided with a lock body and a lock seat of a connecting lock as described above, so as to connect the two video wall housings into one unit by means of the connecting lock.

[0020] Furthermore, the first splicing screen cabinet and / or the second splicing screen cabinet are also fixedly provided with cabinet handles, the cabinet handles including a fixing part fixed to the splicing screen cabinet and a handle part provided at one end of the fixing part;

[0021] The fixing part includes a first limiting member and a second limiting member that are spaced apart. A clearance space is formed between the first limiting member and the second limiting member to allow the operating part of the lock to rotate. A through hole is formed on the second limiting member for the end of the lock rod to pass through.

[0022] Furthermore, transparent windows are provided on the rear walls of both the first and second splicing screen cabinets, and barcodes or QR codes are affixed inside the transparent windows.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] (1) This application simplifies the unlocking operation into a single-step rotation operation by setting a linkage mechanism between a rotatable limiting member and a translatable locking bar clamping member. The operator only needs to rotate the operating part once, and the locking bar clamping member can be translated by the linkage of the driving part of the limiting member, thereby completing the unlocking.

[0025] (2) This application integrates the core linkage mechanism for converting rotational motion into translational motion within the lock seat. The lock seat includes a fixed base for mounting and accommodating internal components, a rotatable limiting member disposed within the fixed base, and a locking rod clamping member disposed within the fixed base in a preset direction. The locking rod is linked to the locking rod clamping member, which translates along a preset linear direction. This translational movement directly causes the locking rod clamping member to release or establish the lock on the locking rod. The above structure reduces externally exposed operating parts, making the overall structure of the connecting lock more compact and simple. This mechanical linkage structure responds quickly and is not easily jammed due to external factors such as impurities, resulting in higher reliability.

[0026] (3) This application provides a second elastic element on the locking rod, located between the operating part and the first splicing screen housing. In the unlocked state, the second elastic element allows the locking rod to automatically reset and keep the lock head retracted, thereby achieving "unlocking equals separation". After unlocking, the user can directly separate the two splicing screen housings without manually operating the locking rod, greatly improving the smoothness of disassembly and the efficiency of operation. In addition, the locking rod can also be used as a pre-positioning pin when it is pushed out, replacing the positioning post that needs to be set separately in the traditional design, further simplifying the structure and optimizing the splicing process. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the assembly structure of a video wall provided in an embodiment of this application;

[0029] Figure 2 This is an overall structural diagram of a connection lock provided in an embodiment of this application;

[0030] Figure 3 This is a structural diagram of a connection lock in a locked state according to an embodiment of this application;

[0031] Figure 4 This is an exploded view of a connection lock provided in an embodiment of this application;

[0032] Figure 5 This is an exploded view of a connection lock provided in another embodiment of this application;

[0033] Figure 6 This is a structural diagram of a fixing base provided in an embodiment of this application;

[0034] Figure 7 This is a structural diagram of a limiting member provided in an embodiment of this application;

[0035] Figure 8 This is a structural diagram of a locking rod clamping component provided in an embodiment of this application;

[0036] Figure 9 This is a diagram of a lock head structure provided in one embodiment of this application;

[0037] Figure 10 This is a structural diagram of a box handle provided in one embodiment of this application.

[0038] Wherein: 1-lock body, 11-lock rod, 111-lock head, 112-circumferential groove, 113-cylindrical connecting part, 114-guide part, 1141-guide surface, 1142-limiting surface, 12-operating part, 13-second elastic element, 2-lock seat, 21-fixed seat, 211-first groove, 212-rotating groove, 213-second groove, 214-opening, 22-limiting element, 221-drive part, 2211-guide groove, 222-connecting part, 2221-connecting groove, 2222-pivoting part, 2223-drive Connecting part, 2224-first connecting groove, 2225-second connecting groove, 2226-abutting surface, 23-locking rod clamping part, 231-linking part, 232-insertion plate, 233-first through hole, 234-slot hole, 24-first elastic body, 3-first connecting body, 4-second connecting body, 5-box handle, 51-fixing part, 511-first limiting part, 512-second limiting part, 5121-through hole, 513-vertical plate, 52-handle part, 6-transparent window, 7-QR code pasting area, 8-5G module installation space. Detailed Implementation

[0039] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] The following is in conjunction with the appendix Figure 1 To be continued Figure 10 The present invention will be described in detail with specific embodiments.

[0041] See Figures 1 to 10 This utility model provides a fast-unlocking connection lock, aiming to solve the technical problems of complex structure and cumbersome operation of existing connection locks, so as to achieve fast unlocking in a single step and at a small angle. This connection lock can be widely used in modular equipment that requires frequent disassembly and assembly, and is especially suitable for the rapid connection of splicing screen cabinets. In this application embodiment, the application of the connection lock in the field of rapid connection of splicing screen cabinets is used as an example for detailed description.

[0042] The connection lock of this application is used to detachably connect the first connector 3 and the second connector 4 into one unit. For example, in splicing screen applications, it is necessary to precisely and firmly splice multiple splicing screen cabinets. For instance, a connection needs to be made between the lower splicing screen cabinet (which can be regarded as the first connector 3) and the upper splicing screen cabinet (which can be regarded as the second connector 4). The connection lock in this embodiment can be used for the detachable connection in the above situation.

[0043] Specifically, see Figure 2 The connecting lock includes a lock body 1 and a lock base 2. The lock body 1 is mounted on a first connecting body 3, and the lock base 2 is mounted on a second connecting body 4. The lock body 1 includes a locking rod 11 and an operating part 12 fixedly connected to one end of the locking rod 11. The locking rod 11 passes through the first connecting body 3 (the first connecting body 3 is provided with a connecting hole for the locking rod 11 to pass through). The operating part 12 is located on the side of the first connecting body 3 away from the second connecting body 4. In other words, when the locking rod 11 is installed, it passes through the first connecting body 3, with one end (as shown below) connected to the operating part 12, and the other end (as shown above) forming a lock head 111 for inserting into the lock base 2. The operating part 12 is designed to facilitate the operator's grip and application of force to the locking rod 11 to complete locking and unlocking.

[0044] The lock base 2 integrates the core linkage mechanism for rapid unlocking. (See reference...) Figures 4 to 8The lock base 2 includes a fixed base 21 for mounting and accommodating internal components, a limiting member 22 rotatably disposed within the fixed base 21, and a locking rod clamping member 23 translatably disposed within the fixed base 21 along a preset direction. The fixed base 21 provides precise guidance and support for the rotation of the limiting member 22 and the translation of the locking rod clamping member 23. In this embodiment, the limiting member 22 is a key component for converting rotational motion into translational motion of the locking rod clamping member 12. The limiting member 22 includes a driving part 221 with a specific profile. When the locking rod 11 is rotated by the operating part 12, the limiting member 22 rotates along with the locking rod 11 due to the linkage between the limiting member 22 and the locking rod 11. During its rotation, the specific profile of the driving part 221 interacts with the locking rod clamping member 23, thereby causing the locking rod clamping member 23 to translate along a preset linear direction. This translational action directly causes the locking rod clamping member 23 to release or establish the lock on the locking rod 11.

[0045] In the preferred embodiment, see Figure 7 The limiting member 22 also includes a connecting portion 222, on which a connecting groove 2221 is formed that matches the locking head 111 of the locking rod 11. The rotation of the locking rod 11 drives the limiting member 22 to rotate through the connecting groove 2221. Specifically, when the locking head 111 of the locking rod 11 is inserted into the connecting groove 2221, the rotational torque of the locking rod 11 can be effectively transmitted to the limiting member 22 to drive it to rotate synchronously. At the same time, in order to realize the linkage between the limiting member 22 and the locking rod clamping member 23, a guide groove 2211 is provided on the driving portion 221 of the limiting member 22. The specific trajectory of the guide groove 2211 defines the linkage relationship. Correspondingly, a linkage portion 231 is provided on the locking rod clamping member 23. The linkage portion 231 can be a protrusion or a pin that extends into the guide groove 2211 of the limiting member 22. When the limiting member 22 rotates, the side wall of the guide groove 2211 pushes the linkage part 231, forcing the locking bar clamping member 23 to move along its preset translation path, thereby switching between the locked position and the unlocked position.

[0046] It should be noted that, since the rotation of the locking lever 11 in this application needs to be precisely and without slippage transmitted to the limiting member 22, the connection between the lock head 111 and the connecting groove 2221 adopts a non-circular cross-section fit. For example, the lock head 111 is processed into a non-circular cross-section with at least one plane (such as a D-shaped cross-section), and correspondingly, the shape of the connecting groove 2221 is also a non-circular cross-section that matches the lock head. When locked, the lock head 111 is inserted into the connecting groove 2221, and the two are circumferentially fixed by interlocking through their cross-sectional shapes. When the operator rotates the operating part 12, the rotational force is transmitted to the limiting member 22 through the non-circular cross-section, ensuring synchronous rotation of the two. Of course, in other embodiments, the lock head 111 and the connecting groove 2221 can also be processed into polygonal cross-sections, such as hexagonal or square cross-sections, which can achieve the above-mentioned effects.

[0047] See Figure 6 To more clearly illustrate the internal structure, in one specific embodiment, the fixing base 21 is designed with a specific accommodating space. For example, the fixing base 21 has a first groove 211 and a rotating groove 212 (when the locking seat 2 is on top and the locking rod 11 is on the bottom, the rotating groove 212 is located above the first groove 211 and is vertically connected). The connecting part 222 includes a pivoting part 2222 that extends into the rotating groove 212 and has the same shape as the rotating groove 212, and a driving connecting part 2223 located in the first groove 211. The driving part 221 is fixedly disposed on the side wall of the driving connecting part 2223. Specifically, the pivoting part 2222 extends into the rotating groove 212, and its shape is the same as or matches the inner wall shape of the rotating groove 212. Furthermore, the axis of the rotating groove 212 coincides with the axis of the locking rod 11, ensuring that the limiting member 22 and the locking rod 11 can rotate stably around the fixed axis within the rotating groove 212. Correspondingly, a second groove 213 is also provided in the fixed base 21. The second groove 213 is located on the side of the first groove 211 away from the rotating groove 212. It is specifically used to accommodate and guide the locking rod clamping member 23. The locking rod clamping member 23 is slidably disposed in the second groove 213. A linkage part 231 is fixed on the side of the locking rod clamping member 23 facing the first groove 211 to ensure that the linkage part 231 can accurately interact with the driving part of the limiting member 22.

[0048] To ensure that the locking lever clamp 23 remains in the locked position after locking, refer to Figure 4 and Figure 5 In this embodiment, a first elastic element 24 (such as a spring) is also provided in the second groove 213. One end of the first elastic element 24 abuts against the side wall of the second groove 213 (e.g., the inner wall away from the end of the locking rod clamping member 23), and the other end abuts against one end of the locking rod clamping member 23. The first elastic element 24 causes the locking rod clamping member 23 to translate within the second groove 213. In this embodiment, the elastic force of the first elastic element 24 pushes the locking rod clamping member 23 outward to the locked position. Specifically, in this embodiment, when the locking rod 11 is not inserted into the lock seat 2, the locking rod clamping member 23 is pushed to its limit under the action of the first elastic element 24. When the locking rod 11 is inserted into the lock seat 2, it first interacts with the locking rod clamping member 23, causing the locking rod clamping member 23 to move in the direction of the first elastic element 24 against the action of the first elastic element 24. After the locking rod clamping member 23 moves to a certain position, the locking rod clamping member 23 locks the locking rod 11.

[0049] Furthermore, to provide an external visual indication of the lock's status, the locking bar clamping member 23 has an insert plate 232 at its end opposite to the first elastic member 24, and the fixing seat 21 has an opening 214 at the corresponding position. When the lock is locked or the locking bar 11 is not inserted into the lock seat 2, the insert plate 232 extends out of the opening 214; when the lock body 1 is connected to the lock seat 2, the operator can determine the current status of the lock by observing the position of the insert plate 232. In a preferred embodiment, the insert plate 232 can be coated with color for easier observation. In addition, the insert plate 232 of this application has another function: when the locking bar 11 fails to unlock by rotation, the insert plate 232 can be used as an unlocking button; pressing it will release the lock from the locking bar 11.

[0050] In other embodiments, to prevent accidental unlocking due to scratches or other reasons, the insert plate 232 does not extend out of the opening 214, whether in the unlocked or locked state. When the locking lever 11 fails to unlock by rotation, the insert plate 232 can be used as an unlocking button. By pushing the insert plate 232 inward from the opening 214 with a tool, the lock between it and the locking lever 11 can be released.

[0051] There are several ways to lock the locking mechanism between the locking rod 11 and the locking rod clamping member 23. See [reference needed]. Figure 8 In a preferred embodiment, the locking head 111 of the locking rod 11 has a circumferential groove 112; the locking rod clamping member 23 has a first through hole 233 through which the locking head 111 passes, and a locking hole 234 that mates with the circumferential groove 112 is provided on one side wall of the first through hole 233. In the locked state, the locking head 111 extends into the first through hole 233 and rotates to move the locking rod clamping member 23 outward, and the locking hole 234 engages with the circumferential groove 112 on the locking head 111 to lock the locking rod 11, thus achieving reliable axial locking.

[0052] To ensure that the locking bar 11 is inserted into the locking seat 2, refer to... Figure 9 The upward movement of the locking rod 11 drives the locking rod clamping member 23 to translate into the second groove 213. The top of the locking head 111 of the locking rod 11 has a guide surface 1141, which engages with the inner wall of the first through hole 233 of the locking rod clamping member 23. This allows the locking rod 11 to continuously push the locking rod clamping member 23 against the action of the first elastic member 24 as it moves upward, translating it into the second groove 213. This continues until the locking head 111 on the locking rod 11, located above the circumferential groove 112, completely passes through the first through hole 233. At this point, rotating the operating part 12 allows the circumferential groove 112 on the locking rod 11 to engage with the locking hole 234 on the locking rod clamping member 23, thus achieving locking.

[0053] In some embodiments, see Figure 9The lock head 111 comprises three sections from bottom to top: a circumferential groove 112, a cylindrical connecting part 113, and a guide part 114. The outer diameter of the cylindrical connecting part 113 is adapted to the outer diameter of the first through hole 233. The guide part 114 has a non-circular cross-section and a guide surface 1141 and a limiting surface 1142 are formed on its outer periphery. The connecting groove 2221 in the limiting member 22 includes a first connecting groove 2224 and a second connecting groove 2225 located above the first connecting groove 2224. The first connecting groove 2224 is a circular groove adapted to the cylindrical connecting part 113. The second connecting groove 2225 is a non-circular groove, and its sidewall has an abutment surface 2226 that contacts the limiting surface 1142. Both the limiting surface 1142 and the abutment surface 2226 are vertical surfaces. When the lock head 111 drives the limiting member 22 to rotate to the unlocked state, during the process of pulling the lock rod 11 downward through the operating part 12, the limiting surface 1142 and the abutment surface 2226 contact and engage, constraining the lock rod 11 to move vertically downward without circumferential deflection. During this vertical downward phase, before the limiting surface 1142 and the abutment surface 2226 disengage, the cylindrical connecting part 113 has already entered the first through hole 233, and then the lock rod 11 can be directly pulled out to the lock seat 2, thereby completing the separation of the first connecting body 3 and the second connecting body 4.

[0054] In a preferred embodiment, the rotation angle of the locking lever 11 from the locked position to the unlocked position is less than or equal to 30°. This limited rotation angle not only achieves ultimate operational convenience but also shortens the assembly and disassembly time of a single connection point, significantly improving the overall installation effect. Furthermore, since the locking lever 11 and the limiting member 22 rotate synchronously, the rotation angle of the locking lever 11 directly affects the rotation angle of the drive unit, and consequently, directly affects the space arrangement within the mounting bracket. Therefore, designing the rotation angle to be less than or equal to 30° not only adapts to narrow-sided splicing screen cabinets but also allows for the compact design of the locking bracket, facilitating its installation on adjacent narrow-sided splicing screen cabinets.

[0055] For further details, please refer to [link / reference]. Figure 2 A second elastic element 13 is fitted onto the locking rod 11, located between the operating part 12 and the first connecting body 3. In the unlocked state, the second elastic element 13 causes the locking head of the locking rod 11 to retract into the first connecting body 3. In other words, the second elastic element 13 allows the locking rod 11 to automatically maintain the retracted locking head in the unlocked state, enabling the user to directly separate the two connecting bodies without manually resetting the locking rod 11 after unlocking, achieving a seamless unlocking and separation operation and improving the smoothness and efficiency of disassembly and assembly. Simultaneously, pushing the locking rod 11 out manually can also serve as a pre-positioning post, eliminating the need for a separate positioning post in the splicing screen housing.

[0056] The working process of the connection lock is described in detail below.

[0057] In the locked state, the lock head of the locking rod 11 is inserted into the lock seat 2 and rotated to the locked position. At this time, the first elastic member 24 is in a compressed state, pushing the locking hole 234 on the locking rod clamping member 23 into the circumferential groove 112 of the locking rod 11, thereby forming a firm limit on the locking rod 11. In the unlocked state, the operator holds the operating part 12 and rotates it in the unlocking direction. Since the operating part 12 is fixedly connected to the locking rod 11, the locking rod 11 rotates synchronously. Since the locking rod 11 and the limiting member 22 are linked through the connecting groove 2221, the limiting member 22 also rotates synchronously. As the limiting member 22 rotates, its driving part 221 begins to act with the linkage part 231 on the locking rod clamping member 23, forcing the locking rod clamping member 23 to translate along the second groove 213 in the fixed seat 21 in the unlocking direction.

[0058] It should be noted that by optimizing the guide curve within the guide groove 2211 of the limiting member 22, this embodiment can achieve rapid unlocking at a small angle. The rotation angle of the locking rod 11 from the locked position to the unlocked position can be designed to be less than or equal to 30 degrees. After the locking rod 11 rotates this small angle, the limiting member 22 has driven the locking rod clamping member 23 to move a sufficient distance, causing its locking hole 234 to completely disengage from the circumferential locking groove 112 of the locking rod 11. At this time, the locking of the locking rod 11 is completely released, and the operator can easily lift the locking rod 11 together with the splicing screen cabinet it is located to complete the unlocking and separation operation. The entire process requires only a single and small-angle rotation action, which is extremely convenient and efficient.

[0059] This utility model also provides a splicing screen, including a first splicing screen housing (equivalent to a first connector 3) and a second splicing screen housing (equivalent to a second connector 4) arranged adjacent to each other. The first splicing screen housing and the second splicing screen housing are respectively provided with a lock body 1 and a lock seat 2 for connecting the two splicing screen housings into one unit by means of the connecting lock.

[0060] For further details, please refer to [link / reference]. Figure 1 and Figure 10The first and / or second splicing screen cabinets are also fixedly equipped with cabinet handles 5, which serve a dual function of handling and pre-positioning assistance. The cabinet handle 5 includes a fixing part 51 fixed to the rear of the splicing screen cabinet and a lifting handle 52 located at one end of the fixing part 51. The fixing part 51 is constructed as a frame structure with openings at the top and bottom, including a first limiting member 511 and a second limiting member 512 spaced apart vertically. The first limiting member 511 is located above the second limiting member 512, and the first limiting member 511 and the second limiting member 512 are connected by two spaced vertical plates 513. A clearance space is formed between the first limiting member 511, the second limiting member 512, and the two vertical plates 513 to allow the operating part of the locking mechanism to rotate. The operating part 12 can rotate freely within the clearance space, and a through hole 5121 is formed on the second limiting member 512 for the end of the locking rod 11 to pass through. The through hole 5124 on the first splicing screen housing and the through hole 5121 on the second limiting member 512 are both adapted to the outer diameter of the locking rod 11, so that the locking rod 11 can only move along its axial direction and cannot swing radially.

[0061] The design of the cabinet handle 5 enables a unique operating process: when two video wall cabinets need to be joined, the operator first grasps the handle 52, with the part between the thumb and forefinger resting against the bottom of the locking rod 11. Then, the locking rod 11 is pushed upwards, overcoming the elastic force of the second elastic element 13, causing the locking head 111 to extend out of the video wall cabinet, allowing the locking rod 11 to act as a pre-positioning pin. After the two video wall cabinets are initially aligned via the pre-positioning pin, the operator only needs to easily rotate the operating part 12 located in the clearance space with their thumb to drive the locking rod 11 to rotate and complete the final locking action, achieving quick and accurate assembly of the two video wall cabinets. Furthermore, during the transportation of the video wall cabinets, the cabinet handle 5 can also be used directly to lift the cabinet, eliminating the need for a separate handle, thus achieving functional integration and simplified operation. It should be noted that the cabinet handle design in this application is mainly for use scenarios where the cabinets are heavy. For conventional products, operation usually requires holding the cabinet with one hand and operating the locking mechanism with the other. The design of this application allows the operator to complete all actions of pushing, pulling, rotating and locking the locking bar by holding the handle of the box with one hand. Typically, there are two connecting locks on a box, so the entire box can be unlocked and assembled at the same time by using both hands, which significantly reduces the operational complexity of assembling heavy boxes and improves the overall assembly efficiency.

[0062] In some embodiments, see Figure 1A transparent window 6 is provided on the rear wall of the video wall enclosure. This window is made of a cover plate made of highly transparent material, which is fixed to the enclosure with screws and other fasteners to ensure it cannot be easily disassembled, thus improving security. A sealing ring or waterproof sealant can be applied at the joint between the cover plate and the rear wall of the enclosure to ensure the overall sealing performance of the enclosure, meeting the requirements for outdoor or harsh environments. Inside the enclosure, directly opposite the transparent window 6, a barcode or QR code containing equipment information is fixedly affixed. Thus, during asset inventory, administrators can quickly read the internal barcode information by scanning the barcode or QR code through the transparent window without opening the enclosure.

[0063] In other embodiments, considering that the rear wall of the assembly box may be obscured during transportation and storage, an additional area 7 for pasting barcodes or QR codes is planned on the flat area of ​​the top and / or side of the frame of the assembly box.

[0064] In addition, in order to keep pace with the development of wireless communication technology and enhance the technological advancement and application flexibility of the product, the splicing screen cabinet in this embodiment has been designed with 5G communication functionality in mind.

[0065] Specifically, see Figure 1 A dedicated 5G module installation space is designed and created at the rear of the splicing screen cabinet frame. The dimensions and interfaces of this space are designed according to mainstream 5G communication module standards on the market, and robust mechanical fixing points are provided. More importantly, power and data interfaces (such as USB or PCIe interfaces) connecting to the main control board inside the splicing screen are pre-installed near this space. In application scenarios requiring mobile network access, technicians can easily install a standard 5G communication module into this reserved space and connect the power and data cables. After installation, the 5G module is seamlessly integrated into the splicing screen's control system, making the entire splicing screen device a smart display terminal capable of independently accessing 5G mobile networks, without any external 5G routers or conversion devices. This built-in design not only makes the product appearance cleaner and more integrated, but also enhances the device's applicability and market competitiveness in scenarios such as mobile displays, outdoor advertising, and emergency command.

[0066] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A connecting lock for detachably connecting a first connecting body and a second connecting body into one unit, characterized in that, The lock includes a lock body and a lock base, wherein the lock body is disposed on a first connecting body and the lock base is disposed on a second connecting body, wherein: The lock body includes a locking rod and an operating part fixedly connected to one end of the locking rod. The locking rod passes through the first connecting body, and the operating part is located on the side of the first connecting body opposite to the second connecting body. The lock base includes a fixed base, a limiting member rotatably disposed within the fixed base, and a locking rod clamping member translatably disposed within the fixed base in a preset direction; The limiting member includes a driving part. When the locking rod drives the limiting member to rotate towards the unlocking position, the driving part, in conjunction with the locking rod clamping part, moves in the unlocking direction to release the locking of the locking rod.

2. The connection lock according to claim 1, characterized in that, The limiting member also includes a connecting part, on which a connecting groove is formed that is adapted to the lock head of the locking rod. The rotation of the locking rod drives the limiting member to rotate through the connecting groove. The drive unit is provided with a guide groove, and the locking rod clamping member is provided with a linkage part. The linkage part extends into the guide groove and moves to the locked position or the unlocked position as the guide groove rotates.

3. The connection lock according to claim 2, characterized in that, The fixed base is provided with a first groove and a rotating groove. The connecting part includes a pivot part that extends into the rotating groove and has the same shape as the rotating groove, and a driving connecting part located in the first groove. The driving part is fixedly disposed on the side wall of the driving connecting part.

4. The connection lock according to claim 3, characterized in that, The fixed base is also provided with a second groove, which is located on the side of the first groove away from the rotating groove. The locking rod clamping member is movably disposed in the second groove, and the linkage part is fixed on the side of the locking rod clamping member facing the second groove.

5. The connection lock according to claim 4, characterized in that, The second groove is also provided with a first elastic element. One end of the first elastic element abuts against the side wall of the second groove, and the other end abuts against one end of the locking rod clamping member. The first elastic element causes the locking rod clamping member to move horizontally within the second groove.

6. The connection lock according to claim 5, characterized in that, The locking rod clamping member has an insert plate formed at the end opposite to the first elastic member, and the fixing seat has an opening at the corresponding position.

7. The connection lock according to any one of claims 2-6, characterized in that, The lock head has a circumferential groove; the locking bar clamping member has a first through hole, and a locking hole is provided on one side wall of the first through hole. The lock head extends into the first through hole and rotates to move the locking bar clamping member outward. The locking hole clamps the circumferential groove on the lock head to lock the locking bar.

8. The connection lock according to claim 1, characterized in that, The rotation angle of the locking lever from the locked position to the unlocked position is less than or equal to 30°.

9. The connection lock according to claim 1, characterized in that, A second elastic element is fitted onto the locking bar, and the second elastic element is located between the operating part and the first connecting body; in the unlocked state, the second elastic element causes the locking head of the locking bar to retract into the first connecting body.

10. A video wall, comprising a first video wall cabinet and a second video wall cabinet arranged adjacent to each other, characterized in that, The first and second splicing screen cabinets are respectively provided with a lock body and a lock seat of the connection lock as described in any one of claims 1-9 at their respective connecting ends, so as to connect the two splicing screen cabinets into one unit through the connection lock.

11. The splicing screen according to claim 10, characterized in that, The first splicing screen cabinet and / or the second splicing screen cabinet are also fixedly provided with cabinet handles, the cabinet handles including a fixing part fixed to the splicing screen cabinet and a handle part provided at one end of the fixing part; The fixing part includes a first limiting member and a second limiting member arranged at an upper and lower interval. A clearance space is formed between the first limiting member and the second limiting member to allow the operating part of the connecting lock to rotate. A through hole is formed on the second limiting member for the end of the lock rod to pass through.

12. The splicing screen according to claim 10, characterized in that, Both the first and second splicing screen cabinets have transparent windows on their rear walls, and barcodes or QR codes are affixed to the transparent windows.

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