LED display box connecting device and LED display device

Abstract

The application is suitable for the technical field of LED equipment, and provides an LED display box body connecting device and an LED display device. The LED display box body connecting device comprises a connecting main body, the connecting main body is installed in a connecting area; a plurality of fixing parts, the plurality of fixing parts are arranged on the connecting main body, and the plurality of fixing parts are respectively connected to a plurality of box body connecting angles; a plurality of fine adjustment parts, the plurality of fine adjustment parts are arranged on the connecting main body, the box body connecting angle is provided with a fine adjustment stress receiving part, the positions of the plurality of fine adjustment parts correspond to the positions of the plurality of fine adjustment stress receiving parts one by one, the output end of the fine adjustment part abuts against the fine adjustment stress receiving part corresponding thereto, and the output end of the fine adjustment part can move relative to the connecting main body to adjust the distance between the box body connecting angle and the connecting main body. Even if there is a slight position deviation or a machining error of the box body, fine adjustment can be realized, and the flatness between adjacent box bodies can be stably and reliably ensured.

Description

Technical Field

[0001] This application belongs to the field of LED equipment technology, and more specifically, relates to an LED display cabinet connection device and an LED display device. Background Technology

[0002] In the LED display screen mounting process, ensuring the flatness between cabinets is fundamental to achieving high-quality display effects. Currently, the industry mainstream adopts two conventional mounting solutions. The first solution involves aligning the cabinets and then securing them with side-mounted screws. In practice, this solution has significant drawbacks. Workers need to repeatedly adjust the cabinet positions to ensure alignment, making the process complex and time-consuming, and consistency is difficult to control. Due to uneven screw tightening and angular deviations during cabinet installation, it is impossible to consistently guarantee flatness between cabinets, easily leading to unevenness on the display screen surface and affecting the quality of the displayed image.

[0003] Another conventional approach is to use connecting plates to ensure the flatness of the front of the enclosure. Compared to the former, this method offers some improvement in flatness assurance, maintaining the neatness of the front end of the enclosure to a certain extent. However, this approach has significant limitations; it relies entirely on the strength of the enclosure itself and the flatness of its machining, lacking a flexible adjustment mechanism. If the enclosure experiences even a slight deficiency in strength or a deviation in precision during production, even connecting plates cannot compensate for these defects. To meet the stringent requirements of this approach, manufacturers must invest more in improving the strength and machining precision of the enclosure, which undoubtedly increases the production cost significantly. Utility Model Content

[0004] The purpose of this application is to provide an LED display cabinet connection device and an LED display device to solve the problem that the LED cabinets spliced ​​together in the prior art are not flat enough.

[0005] To achieve the above objectives, according to one aspect of this application, an LED display cabinet connection device is provided, applied to an LED display device. The LED display device includes multiple cabinets spliced ​​together, wherein the area between adjacent cabinets is a connection area, and the portion of each cabinet located in the connection area is a cabinet connection corner. The LED display cabinet connection device includes a connection body installed in the connection area; multiple fixing parts, all disposed on the connection body and respectively connected to the multiple cabinet connection corners; and multiple fine-tuning parts, all disposed on the connection body. Each cabinet connection corner is provided with a fine-tuning force-bearing part, the positions of the multiple fine-tuning parts corresponding one-to-one with the positions of the multiple fine-tuning force-bearing parts, the output end of the fine-tuning part abutting against its corresponding fine-tuning force-bearing part, and the output end of the fine-tuning part being movable relative to the connection body to adjust the distance between the cabinet connection corner and the connection body.

[0006] Optionally, the connecting body is provided with a plurality of first threaded holes, and the fine-tuning part includes a fine-tuning threaded component. The plurality of fine-tuning threaded components are screwed into the plurality of first threaded holes one by one and extend toward the fine-tuning force-bearing part.

[0007] Optionally, the fine-tuning force-bearing part includes a boss, and a force-bearing surface is provided at one end of the boss near the fine-tuning part, and the output end of the fine-tuning part abuts against the force-bearing surface.

[0008] Optionally, multiple second threaded holes are provided on the connecting corner of the housing, and the fixing part includes multiple connecting threaded parts, which are screwed into the multiple second threaded holes one by one.

[0009] Optionally, a screen connecting part is provided on the corner of the cabinet connection, and a clearance through hole is provided on the connecting body. The position of the clearance through hole corresponds to the position of the screen connecting part so as to expose the screen connecting part.

[0010] Optionally, a clearance through hole is provided and is located in the middle of the connecting body so that the connecting body forms a connecting frame. A clearance groove is provided at the frame wall of the box connecting corner. The clearance grooves of two adjacent box connecting corners are in corresponding positions, and the frame of the connecting frame is accommodated in the clearance groove.

[0011] Optionally, multiple screen connecting parts are inserted into the clearance through holes.

[0012] Optionally, a countersunk hole is provided on the outer periphery of the first threaded hole, the fine-tuning threaded part has a nut, and the LED display cabinet connecting device also includes a spring, the first end of the spring abutting against the countersunk end wall of the countersunk hole, and the second end of the spring abutting against the nut.

[0013] Optionally, a directional indicator is provided on the connecting body.

[0014] According to another aspect of this application, an LED display device is provided, which includes a plurality of cabinets spliced ​​together, wherein the area between adjacent cabinets is a connecting area, and the portion of each cabinet located in the connecting area is a cabinet connecting corner. The LED display device also includes an LED display cabinet connecting device, which is the aforementioned LED display cabinet connecting device.

[0015] The beneficial effects of the LED display cabinet connecting device provided in this application are as follows: Compared with the two mainstream screen mounting solutions in the industry, the LED display cabinet connecting device in this application embodiment, in actual operation, uses the connecting body installed in the connecting area and multiple fixing parts to directly connect the cabinet connecting corners. This avoids the cumbersome process of repeatedly adjusting the cabinet position required by the side-mounted cabinet screws used in the first solution, greatly simplifying the operation steps, reducing installation difficulty, significantly shortening the screen mounting time, and greatly improving construction efficiency. Regarding flatness assurance, the multiple fine-tuning parts of this device have their output ends corresponding to the fine-tuning force-bearing parts of the cabinet connecting corners. By moving the output ends of the fine-tuning parts relative to the connecting body, the distance between the cabinet connecting corners and the connecting body can be precisely adjusted. This effectively overcomes the shortcomings of the first solution, which suffers from uneven screw tightening force and cabinet installation angle deviation, making it difficult to guarantee flatness, and the second solution, which relies excessively on the cabinet's own strength and processing precision and lacks an adjustment mechanism. Even if the cabinet has slight positional deviations or processing errors, fine-tuning can be achieved, stably and reliably ensuring the flatness between adjacent cabinets. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an overall structural diagram of the LED display device according to an embodiment of this application;

[0018] Figure 2 This is a structural diagram of multiple boxes spliced ​​together and the connecting body not installed, according to an embodiment of this application.

[0019] Figure 3 for Figure 2 Enlarged view of region A in the middle;

[0020] Figure 4 This is a structural diagram of multiple boxes spliced ​​together and connected to the main body during installation, according to an embodiment of this application.

[0021] Figure 5 for Figure 4 Enlarged view of region B in the middle;

[0022] Figure 6 This is an exploded view of the LED display cabinet connection device according to an embodiment of this application;

[0023] Figure 7This is an exploded view of the LED display cabinet connecting device according to an embodiment of this application from another angle;

[0024] The details of the reference numerals used in the above figures are as follows:

[0025] 10. Cabinet; 11. Boss; 12. Screen connection part; 13. Relief groove;

[0026] 20. Connecting body; 21. First threaded hole; 22. Second threaded hole; 23. Direction marking part; 24. Clearance through hole;

[0027] 30. Fixing part;

[0028] 40. Fine-tuning department; Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly or indirectly on that other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to that other element. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and 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. Therefore, they should not be construed as limitations on this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] As described in the background section, ensuring the flatness between LED display cabinets is fundamental to achieving high-quality display effects in the LED display mounting process. Currently, the industry mainstream adopts two conventional mounting solutions. The first solution involves aligning the cabinets and then securing them with side-mounted screws. In practice, this solution has significant drawbacks. Workers need to repeatedly adjust the cabinet positions to ensure alignment, making the process complex and time-consuming, and consistency is difficult to maintain. Due to uneven screw tightening and angular deviations during cabinet installation, it is impossible to consistently guarantee flatness between cabinets, easily leading to unevenness on the display surface and affecting the quality of the displayed image.

[0034] Another conventional approach is to use connecting plates to ensure the flatness of the front of the enclosure. Compared to the former, this method offers some improvement in flatness assurance, maintaining the neatness of the front end of the enclosure to a certain extent. However, this approach has significant limitations; it relies entirely on the strength of the enclosure itself and the flatness of its machining, lacking a flexible adjustment mechanism. If the enclosure experiences even a slight deficiency in strength or a deviation in precision during production, even connecting plates cannot compensate for these defects. To meet the stringent requirements of this approach, manufacturers must invest more in improving the strength and machining precision of the enclosure, which undoubtedly increases the production cost significantly.

[0035] To solve the above problem, see Figures 1 to 7As shown, the LED display cabinet 10 connecting device in this embodiment is applied to an LED display device. The LED display device includes multiple cabinets 10 spliced ​​together. The area between adjacent cabinets 10 is a connecting area, and the portion of each cabinet 10 located in the connecting area is a connecting corner of the cabinet 10. The LED display cabinet 10 connecting device includes: a connecting body 20, multiple fixing parts 30, and multiple fine-tuning parts 40. The connecting body 20 is installed in the connecting area. The multiple fixing parts 30 are all disposed on the connecting body 20 and are respectively connected to the multiple connecting corners of the cabinets 10. The multiple fine-tuning parts 40 are all disposed on the connecting body 20. The connecting corners of the cabinets 10 are provided with fine-tuning force-bearing parts. The positions of the multiple fine-tuning parts 40 correspond one-to-one with the positions of the multiple fine-tuning force-bearing parts. The output end of the fine-tuning part 40 abuts against its corresponding fine-tuning force-bearing part. The output end of the fine-tuning part 40 can move relative to the connecting body 20 to adjust the distance between the connecting corner of the cabinet 10 and the connecting body 20. It should be noted that the cabinet 10 is the basic unit module constituting the LED display device. It is usually a rectangular structure and integrates driving circuits, heat dissipation components, etc. The edge area of ​​the cabinet 10 is used for connection and fixation with adjacent cabinets 10. Its processing accuracy and installation accuracy directly affect the flatness and display effect of the entire display screen. The connection area is the common area formed by multiple adjacent cabinets 10 approaching each other when splicing. It is the key area for installing the connection device, realizing the mechanical connection and position adjustment between cabinets 10. The connection body 20 of this application is installed in this area, and the connection angle of multiple cabinets 10 can be uniformly adjusted through this area. The connection angle of the cabinet 10 is a specific part of the cabinet 10 located in the connection area. The corner area of ​​the cabinet 10 is the part where the cabinet 10 is mechanically connected to the connection device. It bears the role of transmitting fine adjustment force and fixing force. Its structural strength and surface accuracy affect the effect and stability of fine adjustment.

[0036] It should be noted that the connecting body 20 is the core structural component of the LED display cabinet 10 connecting device. Installed within the connecting area, it provides the mounting base and support for the fixing part 30 and the fine-tuning part 40. Through its own structure and installation position, it integrates the connecting corners of multiple cabinets 10 into a whole, ensuring the stability of the relative positional relationship between each cabinet 10. The fixing part 30 is used to rigidly or flexibly connect the connecting body 20 to each connecting corner of the cabinet 10, ensuring that the cabinets 10 do not experience relative displacement during normal use. It can be bolts, clips, clamps, etc., and its number and distribution match the number and position of the connecting corners of the cabinets 10. The fine-tuning part 40 is a precision adjustment mechanism set on the connecting body 20. Its output end abuts against the fine-tuning force-bearing part of the connecting corner of the cabinet 10. By moving the output end relative to the connecting body 20, precise adjustment of the position of the connecting corner of the cabinet 10 is achieved. In this embodiment, it can be a threaded adjustment mechanism, an eccentric wheel adjustment mechanism, a piezoelectric ceramic adjustment mechanism, etc. The fine-tuning force receiving part is a specific structure or area set on the connecting corner of the housing 10. It is in direct contact with the output end of the fine-tuning part 40 and is used to receive the adjustment force applied by the fine-tuning part 40 and transmit the force to the entire housing 10, thereby realizing the adjustment of the position of the housing 10. Its structural form can be such as a plane, groove, protrusion, etc.

[0037] Compared to the two mainstream screen mounting solutions currently available in the industry, the LED display cabinet 10 connecting device in this embodiment, in actual operation, uses the connecting body 20 installed in the connecting area and multiple fixing parts 30 to directly connect the connecting corners of the cabinet 10. This avoids the cumbersome process of repeatedly adjusting the position of the cabinet 10 when using side-connecting screws for fixing in the first solution, greatly simplifying the operation steps, reducing the installation difficulty, significantly shortening the screen mounting time, and greatly improving construction efficiency. Regarding flatness assurance, the device is equipped with multiple fine-tuning sections 40, the output ends of which correspond to the fine-tuning force-bearing sections of the connecting angle of the housing 10. By moving the output ends of the fine-tuning sections 40 relative to the connecting body 20, the distance between the connecting angle of the housing 10 and the connecting body 20 can be precisely adjusted. This effectively overcomes the shortcomings of the first solution, which suffers from uneven screw tightening force and deviation of the housing 10 installation angle, and the second solution, which relies too much on the strength and processing precision of the housing 10 itself and lacks an adjustment mechanism. Even if the housing 10 has a slight positional deviation or processing error, it can achieve fine adjustment and stably and reliably ensure the flatness between adjacent housings 10.

[0038] In this embodiment, the connecting body 20 is provided with a plurality of first threaded holes 21, and the fine-tuning part 40 includes fine-tuning threaded components. The plurality of fine-tuning threaded components are screwed into the plurality of first threaded holes 21 one by one and extend toward the fine-tuning force-bearing part. The threaded structure makes the fine-tuning operation simple and intuitive. The staff only needs to use conventional screwdrivers, wrenches and other tools to adjust the position of the connecting angle of the box 10 by screwing the fine-tuning threaded components. There is no need for complicated operation procedures and professional equipment, which significantly reduces the operation threshold and greatly improves the efficiency of screen erection construction. In terms of adjustment precision, the threaded drive has a stable transmission ratio. By precisely controlling the number of turns of the fine-tuning threaded component, it is possible to achieve micron-level fine adjustment of the distance between the connecting angle of the housing 10 and the connecting body 20. This effectively compensates for the shortcomings of existing solutions, such as uneven screw tightening force and deviations in the installation angle of the housing 10, which make it difficult to guarantee flatness. Even if the housing 10 has a slight positional deviation or processing error, the precise adjustment of the fine-tuning threaded component can achieve high-precision flat splicing between adjacent housings 10, thereby ensuring the flatness of the LED display surface and providing a strong guarantee for high-quality display effects. In terms of cost control and stability, the threaded fine-tuning method has a simple structure and easy-to-manufacture parts. It does not require a complex and precise adjustment mechanism, which effectively reduces the production cost of the connection device. At the same time, the threaded connection has good self-locking performance. After the fine-tuning threaded component is tightened to the correct position, it can stably maintain the adjusted position and avoid the housing 10 from shifting due to external vibrations and other factors. This overcomes the problems of unstable connection and unevenness of the display screen in existing solutions.

[0039] The fine-tuning force-bearing part in this embodiment includes a boss 11. A force-bearing surface is provided at one end of the boss 11 near the fine-tuning part 40, and the output end of the fine-tuning part 40 abuts against this force-bearing surface. The boss 11 allows the adjustment force applied by the fine-tuning part 40 to be concentrated and stably applied to the connecting corner of the cabinet 10. Compared to a flat contact without a specific structure, the boss 11 structure, through its regular geometric shape and protruding form, provides a clear force-bearing point for the output end of the fine-tuning part 40, ensuring that the force applied by the fine-tuning part 40 can be accurately applied to the cabinet 10, allowing the cabinet 10 to be adjusted in the expected direction and amplitude, thereby effectively improving the accuracy and effectiveness of the fine-tuning operation. The boss 11 structure also maintains a good force-bearing state, ensuring that the distance adjustment between the connecting corner of the cabinet 10 and the connecting body 20 is always within a precise and controllable range, thus ensuring the flatness between adjacent cabinets 10 and effectively preventing unevenness in the display screen.

[0040] In this embodiment, the housing 10 has multiple second threaded holes 22 on its connecting corners, and the fixing part 30 includes multiple threaded connecting parts, which are screwed into the multiple second threaded holes 22 one by one. The threaded connection has high axial tensile strength and fatigue resistance. By screwing the multiple threaded connecting parts into the second threaded holes 22 on the connecting corners of the housing 10, a stable and reliable mechanical connection can be formed, ensuring a firm bond between the connecting body 20 and the connecting corner of the housing 10. This effectively resists vibrations and impacts generated during the transportation, installation, and long-term use of the LED display device, ensuring the relative position stability between the housings 10 and preventing unevenness of the display surface or displacement of the housing 10 due to loose connections, thereby extending the service life of the LED display device and improving its operational reliability. Operators only need to use conventional tools (such as screwdrivers and wrenches) to complete the screwing operation of the threaded connecting parts, without requiring complex installation processes or professional skills. Compared with traditional welding or riveting fixing methods, the threaded connection has the characteristics of repeated disassembly and installation, facilitating the transportation, assembly, and subsequent maintenance of the LED display device. Multiple threaded connecting parts are evenly distributed on the connecting corners of the housing 10, which enables the connecting force to be evenly transmitted to all parts of the housing 10, avoiding deformation or damage to the housing 10 due to uneven force.

[0041] In this embodiment, a screen connection portion 12 is provided at the connecting corner of the housing 10, and a clearance through hole 24 is provided on the connecting body 20. The position of the clearance through hole 24 corresponds to the position of the screen connection portion 12, so as to expose the screen connection portion 12. In traditional solutions, the connecting device often obstructs the screen connection area due to structural limitations, resulting in wiring difficulties or the need to open additional connection channels, increasing structural complexity and assembly difficulty. This application precisely exposes the screen connection portion 12 through the clearance through hole 24, which not only ensures the stable support of the connecting body 20 for the housing 10, but also provides an unobstructed channel for electrical connection and signal transmission between screens. The existence of the clearance through hole 24 allows the operator to directly operate the screen connection portion 12 after the connecting body 20 is installed in place, without the need for additional disassembly or adjustment of the connection structure, significantly simplifying the connection process between screens.

[0042] In this embodiment, a single clearance through-hole 24 is provided in the middle of the connecting body 20, so that the connecting body 20 forms a connecting frame. A clearance groove 13 is provided at the frame wall of the connecting corner of the housing 10. The clearance grooves 13 of two adjacent connecting corners of the housing 10 are positioned correspondingly, and the frame of the connecting frame is accommodated within the clearance groove 13. In conventional solutions, the connecting device typically occupies a large space outside the housing 10, resulting in an increase in the overall thickness of the display screen and making the connecting structure susceptible to damage from collisions. This application achieves an embedded design of the connecting structure by accommodating the connecting frame within the clearance groove 13, significantly reducing the thickness of the connecting area between the housings 10 and effectively reducing the overall volume and weight of the LED display screen.

[0043] The recessed groove 13 and the connecting frame form a mechanical interlocking structure. When the connecting frame is embedded in the recessed groove 13, the sidewall of the groove provides lateral restraint to the connecting frame, effectively resisting horizontal external force impacts and preventing lateral displacement or shaking of the connecting body 20. The interlocking structure is particularly important in large displays with multiple cabinets 10 spliced ​​together, significantly improving the vibration and impact resistance of the entire display system.

[0044] Regarding ease of assembly, during installation, workers can quickly achieve initial positioning of the connecting body 20 and the housing 10 by aligning the connecting frame with the recess 13, reducing alignment difficulty and improving assembly efficiency. Furthermore, this embedded structure also has an anti-misinstallation function; installation can only be completed when the connecting frame and the recess 13 are correctly matched, effectively avoiding rework or component damage due to installation errors. The screen connecting part 12 can be a magnetic structure, a threaded connection structure, etc.

[0045] In this embodiment, the multiple screen connection parts 12 are all located in the area corresponding to the clearance through holes 24. Since the screen connection parts 12 correspond to the clearance through holes 24, installers can directly locate and connect the screen connection parts 12 through the clearance through holes 24, without having to search point by point in the complex structure of the housing 10, which greatly reduces the trial and error time during the installation process.

[0046] In this embodiment, multiple screen connecting parts 12 are inserted through the clearance holes 24. Compared to simply setting them in corresponding areas, the way the screen connecting parts 12 are inserted allows the connecting parts to be tightly fitted with the connecting body 20, forming a stable connection relationship similar to a mortise and tenon structure. When the LED display screen is subjected to vibration, external pressure, etc., the inserted screen connecting parts 12 are constrained in all directions by the hole walls of the clearance holes 24, which can effectively disperse stress and prevent the connecting parts from loosening or shifting due to uneven force. This greatly enhances the stability of the electrical connection between the screens, ensures the long-term stable operation of the display screen, and reduces screen abnormality problems caused by loose connections.

[0047] Meanwhile, the three-dimensional space between the connecting body 20 and the housing 10 is utilized. The screen connecting part 12 passes directly through the clearance hole 24, avoiding additional space occupation on the surface or side of the housing 10, making the structure of the entire connecting area more compact. The through-hole screen connecting part 12 provides clear positioning and operation guidance for installers. During installation, simply align the screen connecting part 12 and pass it through the clearance hole 24 to quickly complete the initial installation, significantly shortening the installation time and improving construction efficiency.

[0048] In this embodiment, the outer periphery of the first threaded hole 21 is provided with a countersunk hole, the fine-tuning threaded component has a nut, and the LED display cabinet 10 connecting device also includes a spring. The first end of the spring abuts against the countersunk end wall of the countersunk hole, and the second end of the spring abuts against the nut. The spring provides a continuous and stable elastic preload for the fine-tuning threaded component. During fine-tuning, when the operator rotates the fine-tuning threaded component to adjust the connection angle position of the cabinet 10, the elastic deformation of the spring can buffer external force, preventing the fine-tuning threaded component from being over-screwed due to excessive force, thereby achieving fine adjustment of the position of the cabinet 10, reaching micron-level adjustment accuracy, and effectively ensuring high-precision flat splicing between adjacent cabinets 10. The elastic force of the spring continuously acts on the nut, forming a mechanical self-locking effect. Even under long-term vibration or external force, the fine-tuning threaded component is difficult to loosen on its own, greatly reducing the maintenance frequency caused by loose threads compared to traditional threaded connection methods.

[0049] In this embodiment, the connecting body 20 is provided with a direction indicator 23. During installation, the direction indicator 23 provides clear and intuitive guidance to the installers, significantly improving installation efficiency. Traditional LED display cabinet 10 connecting devices require installers to carefully identify the installation direction of each component, especially in complex multi-cabinet 10 splicing scenarios. Incorrect direction judgment can lead to repetitive operations, wasting significant time and manpower. However, the direction indicator 23 of this application, through conspicuous symbols, arrows, or colors, enables installers to quickly determine the correct installation direction of the connecting body 20 and the cabinet 10, avoiding incorrect installation due to directional confusion, significantly shortening installation time, and improving construction progress.

[0050] According to another aspect of this application, an LED display device is provided, comprising a plurality of cabinets 10 spliced ​​together. The area between adjacent cabinets 10 is a connecting area, and the portion of each cabinet 10 located in the connecting area is a connecting corner of the cabinet 10. The LED display device also includes an LED display cabinet 10 connecting device, which is the aforementioned LED display cabinet 10 connecting device. Regarding the flatness and display effect of the display screen, the precise cooperation between the fine-tuning part 40 and the fine-tuning force-bearing part in the connecting device, and the stable connection between the fixing part 30 and the connecting corner of the cabinet 10, effectively compensates for processing errors and installation deviations of the cabinets 10, ensuring high-precision flat splicing between adjacent cabinets 10, avoiding unevenness on the display screen surface, thereby presenting users with a clear, distortion-free, high-quality display image, meeting the stringent display effect requirements of application scenarios such as commercial advertising, stage performances, and monitoring and command.

[0051] In terms of ease of installation and maintenance, the directional sign 23 provides clear installation guidance for installers, significantly shortening installation time; the combination of countersunk holes and springs makes fine-tuning threaded parts easy to adjust and prevents loosening, reducing maintenance frequency; the corresponding through-hole layout of the screen body connecting part 12 and the clearance through-hole 24 simplifies the electrical connection process. Whether it is rapid assembly during the installation stage or convenient maintenance during later inspections, it significantly improves construction and maintenance efficiency and reduces labor and time costs.

[0052] From the perspective of structural stability and service life, the embedded connecting frame of the connecting device, the fit with the clearance groove 13, and the threaded connection of the fixing part 30 enhance the connection strength and vibration resistance between the cabinets 10. When the LED display device is subjected to external forces such as transportation bumps and environmental vibrations, this structure can effectively disperse stress, prevent the cabinet 10 from shifting or the connection from loosening, ensure the long-term stable operation of the display device, reduce the frequency of failures caused by structural problems, extend the service life of the equipment, and reduce overall operating costs.

[0053] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An LED display cabinet connection device, characterized in that, This device is applied to an LED display device, which includes multiple cabinets joined together. The area between adjacent cabinets is a connecting area, and portions of each cabinet located within this connecting area are cabinet connection corners. The LED display cabinet connecting device includes: A connecting body is installed in the connecting area; Multiple fixing parts are provided on the connecting body, and the multiple fixing parts are respectively connected to the multiple box connecting corners; Multiple fine-tuning parts are provided on the connecting body. The box connecting angle is provided with a fine-tuning force-receiving part. The positions of the multiple fine-tuning parts correspond one-to-one with the positions of the multiple fine-tuning force-receiving parts. The output end of the fine-tuning part abuts against the fine-tuning force-receiving part corresponding to it. The output end of the fine-tuning part can move relative to the connecting body to adjust the distance between the box connecting angle and the connecting body.

2. The LED display cabinet connecting device according to claim 1, characterized in that, The connecting body is provided with a plurality of first threaded holes, and the fine-tuning part includes a fine-tuning threaded component. The plurality of fine-tuning threaded components are screwed into the plurality of first threaded holes one by one and extend toward the fine-tuning force-receiving part.

3. The LED display cabinet connecting device according to claim 2, characterized in that, The fine-tuning force-receiving part includes a boss, and a force-receiving surface is provided at one end of the boss near the fine-tuning part. The output end of the fine-tuning part abuts against the force-receiving surface.

4. The LED display cabinet connecting device according to claim 1, characterized in that, The box body is provided with a plurality of second threaded holes at the connecting corners, and the fixing part includes a plurality of connecting threaded parts, which are screwed into the plurality of second threaded holes one by one.

5. The LED display cabinet connecting device according to claim 4, characterized in that, A screen connection part is provided on the corner of the housing connection, and a clearance through hole is provided on the main body of the connection. The position of the clearance through hole corresponds to the position of the screen connection part so as to expose the screen connection part.

6. The LED display cabinet connecting device according to claim 5, characterized in that, The clearance through hole is one and is set in the middle of the connecting body so that the connecting body forms a connecting frame. The frame wall of the box connecting corner is provided with a clearance groove. The clearance grooves of two adjacent box connecting corners are in corresponding positions. The frame of the connecting frame is accommodated in the clearance groove.

7. The LED display cabinet connecting device according to claim 6, characterized in that, Multiple screen body connecting parts are inserted into the clearance through holes.

8. The LED display cabinet connecting device according to claim 2, characterized in that, The outer periphery of the first threaded hole is provided with a countersunk hole, the fine-tuning threaded component has a nut, and the LED display cabinet connecting device further includes a spring, the first end of the spring abuts against the countersunk end wall of the countersunk hole, and the second end of the spring abuts against the nut.

9. The LED display cabinet connecting device according to any one of claims 1 to 8, characterized in that, The connecting body is provided with a direction indicator.

10. An LED display device, characterized in that, The LED display device includes multiple cabinets spliced ​​together, wherein the area between adjacent cabinets is a connection area, and the portion of each cabinet located in the connection area is a cabinet connection corner. The LED display device also includes an LED display cabinet connecting device, which is the LED display cabinet connecting device according to any one of claims 1 to 9.

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