Mounting frame and display unit

Abstract

A mounting frame and a display unit. The mounting frame comprises a frame body (300) and a first connecting structure (330). The frame body (300) comprises a main frame (310) and a reinforcing frame (320); the main frame (310) is provided with a clearance hole (311); the reinforcing frame (320) has one end rotatably connected to one inner side wall of the clearance hole (311), and the other end provided with the first connecting structure (330); the first connecting structure (330) is used for being detachably connected to the other inner side wall of the clearance hole (311), and applying a tensioning force to the main frame (310). The first connecting structure is mounted on the main frame (310), and is used for detachably connecting a member to be mounted and the main frame (310). When a power supply member needs to be maintained, the detachable connection between the first connecting structure (330) and the main frame (310) is released, so that the reinforcing frame (320) can rotate relative to the main frame (310) to provide clearance for the power supply member. After the maintenance for the power supply member is completed, the reinforcing frame (320) rotates to a preset position, so that the first connecting structure (330) can be detachably connected to the main frame (310) again, and two ends of the main frame (310) are correspondingly tensioned towards the middle, thereby improving the reliability of the mounting frame and the display unit.

Description

Mounting bracket and display unit

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202410204325.5, filed on February 23, 2024, entitled “Mounting Stand and Display Unit,” which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application relates to the field of display technology, and in particular to a mounting bracket and a display unit. Background Art

[0004] Currently, the main structure of an LED display screen consists of three parts: the LED display module, the cabinet, and the power supply. In particular, for some special applications, such as rental screens and grid screens, the power supply is generally located in the middle of the back of the cabinet. When a frame structure needs to be installed on the back of the cabinet, it interferes with the power supply, affecting maintenance. Summary of the Invention

[0005] It is necessary to provide a mounting frame and a display unit to address the problem that the frame structure of the LED display screen in the prior art interferes with the power supply unit and affects the maintenance of the power supply unit.

[0006] In one aspect, a mounting bracket is provided, comprising:

[0007] A frame body, the frame body comprising a main frame and a reinforcement frame, the main frame being provided with an avoidance hole, one end of the reinforcement frame being rotatably connected to an inner side wall of the avoidance hole, and the other end being provided with a first connection structure, the first connection structure being used to be detachably connected to the other inner side wall of the avoidance hole and to apply tension to the main frame; and

[0008] A first connecting mechanism is installed on the main frame and is used to detachably connect the component to be installed to the main frame.

[0009] In another aspect, a display unit is provided, comprising the above-mentioned mounting bracket.

[0010] When using the mounting bracket and display unit in the above-described embodiment, the mounting bracket is placed on the back of the housing so that the clearance hole is located in the middle of the back of the housing. The power supply unit can be installed in the middle of the back of the housing and located within the main frame. The bracket body is then connected to the housing body using the first connecting mechanism to complete the assembly of the display unit. When maintenance of the power supply unit is required, the detachable connection between the first connecting structure and the main frame is released, allowing the reinforcement frame to rotate relative to the main frame to avoid the power supply unit, ensuring that the power supply unit does not interfere with the reinforcement frame during maintenance, thereby improving the practicality of the bracket body. After maintenance of the power supply unit is completed, the reinforcement frame is rotated to a preset position, allowing the first connecting structure to be detachably reconnected to the main frame and applying a tensioning force to the main frame. This allows the reinforcement frame to correspondingly tighten the two ends of the main frame toward the middle, thereby increasing the overall strength of the main frame and improving the reliability of the mounting bracket. In addition, the bracket body can strengthen the structural strength of the housing, meeting the requirement of achieving a higher hanging height for the display unit, thereby improving the practicality of the display unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings that constitute a part of this application are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0013] FIG1 is a schematic structural diagram of a box body, a frame body, a first connecting mechanism, and a second connecting mechanism according to an embodiment.

[0014] FIG2 is a schematic structural diagram of the frame body in FIG1 .

[0015] FIG. 3 is an exploded view of the frame body of FIG. 2 .

[0016] FIG4 is an exploded view of the reinforcement frame, the first connection structure, and the first locking assembly in FIG3 .

[0017] FIG5 is a partial enlarged view of portion A in FIG4 .

[0018] FIG6 is a partial enlarged view of portion B in FIG4 .

[0019] FIG7 is a partial enlarged view of portion C in FIG4 .

[0020] FIG8 is a schematic structural diagram of the second connection structure in FIG1 .

[0021] FIG. 9 is an exploded view of the second connection structure of FIG. 8 .

[0022] FIG10 is a schematic structural diagram of the box, the frame body and the connecting lock in FIG1 .

[0023] FIG11 is a schematic structural diagram of the connection lock in FIG10 .

[0024] FIG. 12 is an exploded view of the connecting lock of FIG. 10 .

[0025] FIG. 13 is a schematic structural diagram of the third connection structure in FIG. 1 .

[0026] FIG14 is a schematic structural diagram of the third connection structure of FIG13 from another perspective.

[0027] FIG15 is a cross-sectional view of the first connecting assembly in FIG14 along the DD direction.

[0028] FIG. 16 is an exploded view of the first connecting assembly in FIG. 14 .

[0029] FIG. 17 is an exploded view of the second connecting assembly in FIG. 14 .

[0030] FIG18 is a schematic structural diagram of the main frame and the fourth connecting structure in FIG1 .

[0031] FIG19 is a schematic structural diagram of the first hanging lock module of FIG18 .

[0032] FIG20 is a schematic structural diagram of the second hanging lock module of FIG18.

[0033] FIG21 is a cross-sectional view of the second hanging lock module in FIG20 along the FF direction.

[0034] FIG22 is an exploded view of the second hanging lock module in FIG20 .

[0035] Explanation of the accompanying drawings: 100, box body; 200, power supply installation position; 300, frame body; 310, main frame; 311, avoidance hole; 312, first connecting hole; 313, eighth connecting hole; 320, reinforcement frame; 321, second connecting hole; 322, third connecting hole; 323, first connecting part; 324, first mounting hole; 325, second sliding hole; 326, sixth connecting hole; 327, seventh connecting hole; 328, second connecting part; 330, first connecting structure; 331, telescopic rotating shaft; 3311, eccentric circular shaft end; 3312, first sliding hole; 332, first operating member; 3321, fourth connecting hole; 3322, fifth connecting hole; 3323, first limiting portion; 333, first limiting member; 334, first pin; 340, first locking assembly; 341, first elastic member; 342 , first latch; 343, unlocking member; 344, retaining ring; 345, connecting screw; 351, fixed shaft; 3511, annular groove; 352, second limiting member; 400, second connecting structure; 410, first connecting member; 411, ninth connecting hole; 420, second connecting member; 421, tenth connecting hole; 422, eleventh connecting hole; 430, first locking member; 431, latch; 432, first sliding groove; 433, first limiting hole; 434, eccentric cam; 435, first threaded hole; 440, third limiting member; 441, limiting pin; 442, limiting flange; 450, fourth limiting member; 451, spring cover; 452, twelfth connecting hole; 460, Second elastic member; 470, second operating member; 480, third operating member; 481, first handle; 482, thirteenth connecting hole; 490, locking screw; 500, connecting lock; 510, third connecting member; 511, slot; 520, first mounting member; 521, third sliding hole; 522, third connecting portion; 523, fourteenth connecting hole; 530, fourth operating member; 531, second limiting portion; 532, third limiting portion; 533, fourth connecting portion; 534, fifteenth connecting hole; 535, eccentric hole; 540, fourth connecting member; 541, sixteenth connecting hole; 542, seventeenth connecting hole; 550, fifth connecting member; 551, plug-in portion; 552, inclined surface ; 553, first groove; 554, transmission part; 555, eighteenth connecting hole; 561, first rotating shaft; 562, second rotating shaft; 563, third rotating shaft; 600, third connecting structure; 610, second mounting member; 611, second slide groove; 612, first through hole; 613, second through hole; 614, second mounting hole; 620, sliding member; 621, third slide groove; 622, first limiting groove; 623, second limiting groove; 624, hook groove; 625, first positioning part; 630, sixth connecting member; 640, fifth limiting member; 641, fourth limiting part; 642, fifth limiting part; 643, seventh limiting part; 644, operating part; 650, seventh connecting member;651, sixth limiting portion; 660, third elastic member; 670, sixth limiting portion; 681, seventh limiting portion; 682, fourth elastic member; 683, positioning ball; 690, operating handle; 710, third mounting member; 711, second positioning portion; 712, release boss; 720, eighth connecting member; 730, second handle; 740, return spring; 750, safety buckle; 751, hook; 760, drive spring; 800, fourth connecting structure; 810, first hanging lock module; 811, ninth connecting member; 8111, locking portion; 8112, limiting segment; 8113, cylindrical segment; 812, second screw; 820, second hanging lock module; 821 Tenth connecting member; 8211, mounting through hole; 8212, first flange; 8213, internal thread; 8214, eighth limiting portion; 8215, tooth groove; 822, second locking member; 8221, first opening; 8222, locking cavity; 8223, external thread; 8224, limiting groove; 8225, second opening; 823, eleventh connecting member; 8231, stepped hole; 8232, stepped surface; 824, fifth operating member; 8241, third limiting boss; 8242, third threaded hole; 825, gasket; 8251, nineteenth connecting hole; 826, first screw; 827, second locking assembly; 8271, button tab; 8272, tension spring. DETAILED DESCRIPTION

[0036] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0037] As shown in Figures 1, 2, 3, and 4, in one embodiment, a frame body 300 and a first connecting mechanism are provided. The frame body 300 includes a main frame 310 and a reinforcement frame 320. The main frame 310 is provided with a relief hole 311. One end of the reinforcement frame 320 is pivotally connected to one inner sidewall of the relief hole 311, and the other end is provided with a first connecting structure. The first connecting structure is configured to detachably connect to the other inner sidewall of the relief hole 311 and apply a tensioning force to the main frame 310. The first connecting mechanism is mounted on the main frame 310 and is configured to detachably connect the mounting member to the main frame 310.

[0038] When using the mounting bracket in the above embodiment, the bracket is placed on the back of the housing 100, with the clearance hole 311 located in the middle of the back of the housing 100. The power supply unit can be installed in the middle of the back of the housing 100 and positioned within the main frame 310. The bracket body 300 is then connected to the housing 100 using the first connecting mechanism, completing the assembly of the display unit. When the power supply unit needs to be maintained, the detachable connection between the first connecting structure and the main frame 310 is released, allowing the reinforcement frame 320 to rotate relative to the main frame 310 to clear the power supply unit. This ensures that the power supply unit does not interfere with the reinforcement frame 320 during maintenance, thereby improving the practicality of the bracket body 300. After maintenance of the power supply unit is complete, the reinforcement frame 320 rotates to a predetermined position, allowing the first connecting structure to reattach to the main frame 310 and apply a tensioning force to the main frame 310. This allows the reinforcement frame 320 to pull the ends of the main frame 310 toward the center, thereby increasing the overall strength of the main frame 310 and enhancing the reliability of the mounting bracket. In addition, the frame body 300 can enhance the structural strength of the box body 100, meet the demand for a higher hanging height of the display unit, and improve the practicality of the display unit.

[0039] The component to be mounted can be configured as an LED display, display board, or other mounting structure. This application uses the example of an LED display as an example for illustration, and this should not be construed as limiting this application. Specifically, in this embodiment, when the power supply unit and mounting bracket are both mounted on the back of the housing 100, along the axis of the avoidance hole 311, the projection area of ​​the power supply unit is located within the projection area of ​​the avoidance hole 311.

[0040] The first connection structure 330 may be provided with a snap-on assembly, a plug-in assembly, a buckle assembly, a hook assembly or other structures. Specifically in this embodiment, the power supply may be provided as a power box, which is installed at the power installation position 200 .

[0041] As shown in Figures 3, 5, and 6, a first connection hole 312 is further provided on the other inner sidewall of the avoidance hole 311. The first connection structure 330 includes a telescopic shaft 331, which is movably disposed on the reinforcement frame 320. When the reinforcement frame 320 rotates to a first preset position relative to the main frame 310, the telescopic shaft 331 can extend into the first connection hole 312 and squeeze the inner sidewall of the first connection hole 312 on the side closest to the avoidance hole 311. In this way, by controlling the movement of the telescopic shaft 331 relative to the first connection hole 312, the telescopic shaft 331 can connect the reinforcement frame 320 to the main frame 310 and maintain a locked state, or disconnect the reinforcement frame 320 from the main frame 310 and maintain an unlocked state, thereby improving the convenience and efficiency of power supply maintenance.

[0042] The first preset position refers to the position of the reinforcement frame 320 relative to the main frame 310 when the telescopic shaft 331 can freely extend into or move out of the first connection hole 312 along the axial direction of the telescopic shaft 331 .

[0043] As shown in Figures 4, 5, and 6, the end of the telescopic shaft 331 near the first connection hole 312 is optionally configured as an eccentric circular shaft end 3311. The eccentric circular shaft end 3311 is eccentrically disposed relative to the first connection hole 312. When the eccentric circular shaft end 3311 is inserted into the first connection hole 312, the eccentric circular shaft end 3311 and the first connection hole 312 have a clearance fit. When the eccentric circular shaft end 3311 is inserted into the first connection hole 312 to a second preset position, the eccentric circular shaft end 3311 and the first connection hole 312 have an interference fit, thereby squeezing the inner sidewall of the first connection hole 312 near the avoidance hole 311. In this way, during the process of the eccentric circular shaft end 3311 being inserted into the second preset position, the clearance fit between the eccentric circular shaft end 3311 and the first connection hole 312 can gradually transition to an interference fit, thereby improving the convenience of use of the mounting bracket 100.

[0044] Specifically in this embodiment, when the eccentric circular shaft end 3311 extends into the first connection hole 312, a gap is formed between the eccentric circular shaft end 3311 and the inner sidewall of the first connection hole 312 on the side close to the avoidance hole 311. As the telescopic shaft 331 continues to extend into the first connection hole 312, the gap gradually decreases until the eccentric circular shaft end 3311 extends into the second preset position in the first connection hole 312, at which point the eccentric circular shaft end 3311 presses against the inner sidewall of the first connection hole 312 on the side close to the avoidance hole 311. In other embodiments, the end of the telescopic shaft 331 away from the first connection hole 312 is configured as a true circular shaft end, which is capable of maintaining its own rotation about the central axis.

[0045] As shown in Figures 3, 5, and 6, in one embodiment, the reinforcement frame 320 is provided with a second connection hole 321 corresponding to the first connection hole 312. A sliding portion (not shown) is provided on the outer wall of the telescopic shaft 331. The sliding portion slides along the inner wall of the second connection hole 321 along a spiral line. The first connection structure 330 also includes a first operating member 332. The first operating member 332 is in driving engagement with the end of the telescopic shaft 331 away from the first connection hole 312 to drive the telescopic shaft 331 into or out of the first connection hole 312. In this way, the first operating member 332 can drive the telescopic shaft 331 to rotate, and under the guidance of the sliding portion, the telescopic shaft 331 performs a spiral motion. Therefore, by rotating the first operating member 332 in different directions and angles, the telescopic shaft 331 can be rotated and extended, thereby improving the convenience of use of the frame body 300.

[0046] In other embodiments, the telescopic shaft 331 can also be driven by hydraulic pressure, pneumatic pressure, a telescopic motor, etc., as long as the telescopic shaft 331 can be extended into the first connecting hole 312 and squeeze the inner wall of the first connecting hole 312 on the side close to the avoidance hole 311.

[0047] The first operating member 332 may be a control handle, an operating knob, an operating wrench, or other operating structure. Specifically in this embodiment, the eccentric circular shaft end 3311 can cooperate with the first connecting hole 312 to achieve the function of opening and closing the reinforcement frame 320 relative to the main frame 310.

[0048] As shown in Figures 3, 5, and 6, the sliding portion can optionally be configured as a spiral groove. The reinforcement frame 320 further includes a third connection hole 322, which extends to the inner sidewall of the second connection hole 321. The first connection structure 330 also includes a first stopper 333, which is disposed through the third connection hole 322 and slidably engages with the spiral groove. In this way, the first stopper 333 and the spiral groove can cooperate to provide a guide, ensuring that the telescopic shaft 331 can perform a spiral motion to correspondingly extend into or out of the first connection hole 312, thereby improving the reliability of the frame body 300.

[0049] Specifically in this embodiment, the first limiting member 333 is configured as a first limiting screw.

[0050] As shown in Figures 3, 5, and 6, in one embodiment, two first connecting portions 323 are spaced apart at one end of the reinforcement frame 320 near the first operating member 332. Each of the two first connecting portions 323 has a second connecting hole 321. There are two first connecting holes 312 and two telescopic shafts 331. The first operating member 332 is disposed between the two first connecting portions 323 and connected to the two telescopic shafts 331. The two telescopic shafts 331 are disposed correspondingly to the two first connecting holes 312 and the two second connecting holes 321. In this way, the reinforcement frame 320 can be locked with the main frame 310 on both sides via the two telescopic shafts 331, making the tensioning force exerted by the reinforcement frame 320 on the main frame 310 more evenly distributed and improving the reliability of the frame body 300.

[0051] As shown in Figures 3, 5 and 6, further, the first operating member 332 is provided with a fourth connecting hole 3321 corresponding to the second connecting hole 321, and a fifth connecting hole 3322 corresponding to and connected to the fourth connecting hole 3321. The telescopic shaft 331 extends into the fourth connecting hole 3321 at one end close to the first operating member 332, and is provided with a first sliding hole 3312 corresponding to the fifth connecting hole 3322. The first sliding hole 3312 is arranged along the axial direction of the telescopic shaft 331. The first connecting structure 330 also includes a first pin 334, which is passed through the fifth connecting hole 3322 and the first sliding hole 3312, and slides with the first sliding hole 3312. In this way, the first pin 334 can limit the telescopic shaft 331 from rotating relative to the first operating member 332, and the telescopic shaft 331 can slide relative to the first pin 334 along the axial direction of the telescopic shaft 331 through the first sliding hole 3312, ensuring that when the first operating member 332 rotates, the telescopic shaft 331 will rotate synchronously with the first operating member 332 and telescope along the axial direction of the telescopic shaft 331 to correspondingly extend into or out of the first connecting hole 312, thereby improving the convenience of using the frame body 300.

[0052] As shown in Figures 3, 5, and 6, in one embodiment, the frame body 300 further includes a first locking assembly 340. When the telescopic shaft 331 extends into the first connection hole 312 and presses against the inner wall of the first connection hole 312 on the side closest to the avoidance hole 311, the first locking assembly 340 locks with the first operating member 332 to restrict the rotation of the first operating member 332. In this way, the first locking assembly 340 can limit the position of the first operating member 332 relative to the reinforcement frame 320, ensuring that the reinforcement frame 320 can maintain a taut position holding the main frame 310 toward the center, thereby improving the reliability and stability of the frame body 300.

[0053] The first locking assembly 340 may be configured as a locking buckle, a locking clamp, a locking fixture, or other locking structures.

[0054] As shown in Figures 3, 5 and 6, optionally, the first operating member 332 is provided with a first limiting portion 3323, and the reinforcing frame 320 is further provided with a first mounting hole 324 and a second sliding hole 325 at one end close to the first operating member 332. The second sliding hole 325 extends to the inner side wall of the first mounting hole 324 and is arranged along the axial direction of the first mounting hole 324. The first locking assembly 340 includes a first elastic member 341, a first latch 342 and an unlocking member 343. The first elastic member 341 and the first latch 342 are both installed in the first mounting hole 324. The first elastic member 34 The first latch 342 is located on a side of the first latch 342 away from the first limiting portion 3323 and is used to push the first latch 342 to move in a direction close to the first limiting portion 3323, so that the first latch 342 can be limitedly engaged with the first limiting portion 3323 to limit the rotation of the first operating member 332. The unlocking member 343 is disposed in the second sliding hole 325 and is in transmission connection with the first latch 342. The unlocking member 343 is used to drive the first latch 342 to move in a direction away from the first limiting portion 3323, so that the limited engagement between the first latch 342 and the first limiting portion 3323 can be released.

[0055] Specifically, in this embodiment, the first elastic member 341 is configured as a spring. The first locking assembly 340 further includes a retaining ring 344, which is located on the side of the spring away from the first latch 342 and engages with the spring to ensure that the spring is retained within the first mounting hole 324 and can be compressed. The first latch 342 is provided with a first threaded hole 435 extending along the axis of the first mounting hole 324. The outer wall of the first latch 342 is provided with a first insertion hole corresponding to and communicating with the first threaded hole 435. The unlocking member 343 is configured as an unlocking button. One end of the unlocking button passes through the second sliding hole 325 and the first insertion hole and extends into the first threaded hole 435. One end of the unlocking button is provided with a second insertion hole corresponding to and communicating with the first threaded hole 435. The unlocking assembly further includes a connecting screw 345, which is disposed through the second insertion hole and threadedly engaged with the first threaded hole 435, thereby integrally securing the unlocking button to the first latch 342 and improving the reliability of the frame body 300.

[0056] As shown in Figures 3, 4 and 7, in one embodiment, the frame body 300 also includes a fixed rotation shaft 351 and a second limiting member 352. The end of the reinforcing frame 320 away from the first connecting structure 330 is provided with a sixth connecting hole 326 and a seventh connecting hole 327. The seventh connecting hole 327 extends to the inner side wall of the sixth connecting hole 326. An inner side wall of the avoidance hole 311 is provided with an eighth connecting hole 313 corresponding to the sixth connecting hole 326. The first end of the fixed rotation shaft 351 extends into the sixth connecting hole 326 and rotatably cooperates with the sixth connecting hole 326. The second end extends into the eighth connecting hole 313 and rotatably cooperates with the eighth connecting hole 313. The outer side wall of the fixed rotation shaft 351 is also provided with an annular groove 3511 corresponding to the seventh connecting hole 327. The second limiting member 352 is penetrated into the seventh connecting hole 327 and is limited and cooperated with the inner side wall of the annular groove 3511. In this way, the reinforcement frame 320 can be hinged to the main frame 310 through the fixed rotation axis 351, so that the reinforcement frame 320 can rotate relative to the main frame 310, ensuring the strength of the frame body 300 while not affecting the maintenance of the power supply, thereby improving the practicality of the frame body 300.

[0057] Specifically, in this embodiment, the distance between the central axis of the fixed shaft 351 and the central axis of the telescopic shaft 331 is a first distance, and the distance between the central axis of the first connection hole 312 and the central axis of the eighth connection hole 313 is a second distance, with the first distance being smaller than the second distance. This ensures that the ends of the reinforcement frame 320 can correspondingly tighten the ends of the main frame 310, keeping the main frame 310 in a taut state toward the center, thereby improving the overall strength and reliability of the frame body 300.

[0058] As shown in Figures 3 and 7, two second connecting portions 328 are optionally provided at one end of the reinforcement frame 320 away from the first operating member 332. Each of the two second connecting portions 328 is provided with a sixth connecting hole 326 and a seventh connecting hole 327. There are two eighth connecting holes 313, two fixed rotating shafts 351, and two second limiting members 352. The two fixed rotating shafts 351 are provided corresponding to the two sixth connecting holes 326, two seventh connecting holes 327, two eighth connecting holes 313, and two second limiting members 352. The second limiting members 352 are configured as second limiting screws. In this way, the reinforcement frame 320 is rotatably connected to the main frame 310 on both sides via the two fixed rotating shafts 351, which makes the tensioning force exerted by the reinforcement frame 320 on the main frame 310 more evenly distributed, thereby improving the reliability of the frame body 300.

[0059] As shown in FIG. 1 , in one embodiment, the first connection mechanism includes a second connection structure 400 , and the second connection structure 400 is used to detachably connect the component to be installed to the main frame 310 .

[0060] As shown in Figures 1, 8, and 9, the second connection structure 400 includes a first connection member 410, a second connection member 420, and a first locking member 430. One of the first connection member 410 and the second connection member 420 is mounted on the member to be mounted, and the other is mounted on the main frame 310. The first connection member 410 has a ninth connection hole 411; the second connection member 420 has a tenth connection hole 421 corresponding to the ninth connection hole 411; the first locking member 430 is inserted into the tenth connection hole 421 and slidably engages with the second connection member 420 along the spiral direction, so that the first locking member 430 can extend into the ninth connection hole 411 to lock the first connection member 410 with the second connection member 420. In this embodiment, one of the first connection member 410 and the second connection member 420 is mounted on the box body 100.

[0061] In the second connection structure 400 of the above embodiment, when it is necessary to lock the first connection member 410 and the second connection member 420, the first locking member 430 is rotated so that the first locking member 430 can make a spiral motion relative to the second connection member 420 and correspondingly extend into the ninth connection hole 411, thereby locking the first connection member 410 and the second connection member 420 into one. When it is necessary to release the locking engagement between the first connection member 410 and the second connection member 420, the first locking member 430 is rotated in the opposite direction to reset, so that the first locking member 430 can make a spiral motion relative to the second connection member 420 and correspondingly move out of the ninth connection hole 411, and the first locking member 430 is separated from the first connection member 410. Compared with the existing connection and fixing method, the locking member in the present application can cooperate with the first connection member 410 to form a latch 431 structure, thereby improving the convenience of disassembly, assembly and maintenance of the second connection structure 400 and saving labor. In addition, the force direction of the latch 431 structure is radial force. Under the conditions of the same material and the same diameter, the connection strength between the locking member and the first connecting member 410 is higher, thereby improving the reliability and safety of the second connecting structure 400.

[0062] The number of the second connection structures 400 can be flexibly adjusted according to actual needs. Specifically, in this embodiment, there are four second connection structures 400, with the four first connection members 410 being installed on the left and right sides of the back of the box 100, and the four second connection members 420 being installed on the left and right sides of the main frame 310.

[0063] Optionally, both the first connector 410 and the second connector 420 can be configured as connector seats. There are four second connecting structures 400, with the four first connectors 410 installed at intervals on the back of the housing 100, and the four second connectors 420 installed at intervals on the main frame 310. The four first connectors 410 are correspondingly provided with four locking members and four second connectors 420. In this way, by pre-fixing the first connector 410 and the second connector 420 to the housing 100 and the main frame 310, respectively, when the display unit is in use, the main frame 310 can be stably and reliably fixed to the housing 100 through the second connecting structure 400. When the display unit needs to be disassembled, the main frame 310 can be quickly and conveniently separated from the housing 100 through the second connecting structure 400, thereby improving the practicality of the display unit.

[0064] As shown in Figures 8 and 9, optionally, the first locking member is configured as a latch 431, the outer wall of which is provided with a first sliding groove 432, which extends in a spiral direction. The outer wall of the second connecting member 420 is provided with an eleventh connecting hole 422 corresponding to and communicating with the tenth connecting hole 421. The second connecting structure 400 further includes a third limiting member 440, which is disposed through the eleventh connecting hole 422 and slidably engages with the first sliding groove 432. In this way, the third limiting member 440 can cooperate with the first sliding groove 432 to serve as a guide, ensuring that the latch 431 can stably and reliably perform spiral motion relative to the tenth connecting hole 421, thereby improving the reliability and stability of the second connecting structure 400.

[0065] As shown in FIG9 , in one embodiment, a first limiting hole 433 is defined on the bottom wall of the first sliding groove 432. When the locking member extends into the ninth connecting hole 411 to lock the first connecting member 410 with the second connecting member 420, the third limiting member 440 is inserted into the first limiting hole 433 and engages with the inner sidewall of the first limiting hole 433. In this manner, the third limiting member 440 can engage with the first limiting hole 433 to restrict movement of the latch 431 relative to the second connecting member 420, thereby ensuring that the first connecting member 410 and the second connecting member 420 maintain a locked engagement and improving the reliability of the second connecting structure 400.

[0066] As shown in Figures 8 and 9, further, the second connection structure 400 also includes a fourth limiting member 450 and a second elastic member 460. The fourth limiting member 450 covers the eleventh connection hole 422 and is provided with a twelfth connection hole 452 corresponding to and connected to the eleventh connection hole 422. The third limiting member 440 is set as a limiting pin 441. The outer wall of the limiting pin 441 is provided with a limiting flange 442. One end of the limiting pin 441 slides with the first slide groove 432, and the other end is passed through the eleventh connection hole 422 and the twelfth connection hole 452. The second elastic member 460 is sleeved on the outer wall of the limiting pin 441. The two ends of the second elastic member 460 respectively interfere with the limiting flange 442 and the fourth limiting member 450. In this way, the second elastic member 460 can apply elastic force to the limiting pin 441 to ensure that the limiting pin 441 can be stably and reliably inserted into the first limiting hole 433, thereby improving the reliability of the second connection structure 400.

[0067] Specifically in this embodiment, when the limiting pin 441 is inserted into the first limiting hole 433, the limiting flange 442 engages with the outer wall of the latch 431. The second elastic member 460 is configured as a spring, and the fourth limiting member 450 is configured as a spring cover 451. The spring cover 451 covers the end of the eleventh connecting hole 422 away from the tenth connecting hole 421.

[0068] As shown in FIG9 , the second connection structure 400 optionally further includes a second operating member 470, which is located on a side of the fourth limiting member 450 away from the second connection member 420 and is in transmission connection with the limiting pin 441. In this way, the limiting pin 441 can be pulled out of the first limiting hole 433 by the second operating member 470, thereby releasing the limiting engagement between the limiting pin 441 and the first limiting hole 433 and enabling the limiting pin 441 to slide along the extending direction of the first sliding groove 432 to release the locking engagement between the first connection member 410 and the second connection member 420, thereby improving the convenience of use of the second connection structure 400.

[0069] Specifically in this embodiment, the second operating member 470 is configured as a pull button, and the pull button is provided with a slot 511 , and one end of the limiting pin 441 away from the latch 431 is plugged into and engaged with the slot 511 .

[0070] As shown in Figures 8 and 9, in one embodiment, a second retaining hole is provided on the bottom wall of the first slide groove 432. When the locking member moves out of the ninth connecting hole 411 to release the locking engagement between the first connecting member 410 and the second connecting member 420, the third retaining member 440 is inserted into the second retaining hole and engages with the inner sidewall of the second retaining hole. Thus, during the installation of the second connecting member 420, the retaining pin 441 can engage with the second retaining hole to retain the latch 431, ensuring that it does not move relative to the second connecting member 420, preventing the latch 431 from interfering with surrounding components and improving the convenience of the second connecting structure 400.

[0071] Specifically, in this embodiment, the projection area of ​​the first slot 432 along the axis of the latch 431 is 1 / 4 of a circle, meaning that the latch 431 performs a 1 / 4 spiral motion relative to the second connector 420. A first limiting hole 433 and a second limiting hole are respectively provided at opposite ends of the first slot 432. To lock the first connector 410 and the second connector 420, the second operating member 470 is pulled up, compressing the second elastic member 460. The second operating member 470 then drives the limiting pin 441 to move out of the second limiting hole. The latch 431 is then driven to rotate, allowing the limiting pin 441 to slide from one end of the first slot 432 to the other. The latch 431 then extends into the ninth connector hole 411. The second elastic member 460 then resets, driving the limiting pin 441 into the first limiting hole 433, thereby securing the first connector 410, the latch 431, and the second connector 420 together. When it is necessary to release the locking cooperation between the first connecting member 410 and the second connecting member 420, the second operating member 470 is pulled up so that the second elastic member 460 is compressed, and the second operating member 470 drives the limiting pin 441 to move to pull out the first limiting hole 433, and then drives the latch 431 to rotate in the opposite direction, so that the limiting pin 441 slides from the end of the first sliding groove 432 close to the first limiting hole 433 to the end of the first sliding groove 432 close to the second limiting hole, and the latch 431 moves out of the ninth connecting hole 411 accordingly, and the second elastic member 460 is reset to drive the limiting pin 441 to be inserted into the second limiting hole accordingly, so that the latch 431 is separated from the first connecting member 410 and fixed to the second connecting member 420 as a whole.

[0072] As shown in FIG9 , in one embodiment, an eccentric cam 434 is provided at one end of the locking member proximate to the first connecting member 410. The eccentric cam 434 is eccentrically disposed relative to the ninth connecting hole 411, such that when the eccentric cam 434 is inserted into the ninth connecting hole 411, a clearance fit is achieved between the eccentric cam 434 and the ninth connecting hole 411. When the eccentric cam 434 is inserted into a preset position within the ninth connecting hole 411, an interference fit is achieved between the eccentric cam 434 and the ninth connecting hole 411. Thus, during the process of the eccentric cam 434 being inserted into the preset position within the ninth connecting hole 411, the clearance fit between the eccentric cam 434 and the ninth connecting hole 411 can gradually transition to an interference fit, thereby improving the convenience of use of the second connecting structure 400.

[0073] Specifically in this embodiment, when the eccentric cam 434 extends into the ninth connecting hole 411, a gap is formed between the eccentric cam 434 and the inner wall of the ninth connecting hole 411. As the eccentric cam 434 continues to extend into the ninth connecting hole 411, the gap slowly decreases until the eccentric cam 434 extends to a preset position in the ninth connecting hole 411. The eccentric cam 434 and the ninth connecting hole 411 are interference fit to squeeze the inner wall of the ninth connecting hole 411.

[0074] As shown in FIG9 , in one embodiment, the second connection structure 400 further includes a third operating member 480, which is connected to an end of the locking member away from the first connection member 410 to receive a torque that causes the locking member to rotate relative to the second connection member 420. In this manner, the third operating member 480 can be used to control the insertion or removal of the latch 431 into or out of the ninth connection hole 411, thereby improving the convenience of the second connection structure 400.

[0075] The third operating member 480 may be configured as an operating knob, an operating handle, an operating wrench or other operating structures.

[0076] As shown in Figures 8 and 9, the locking member may optionally be provided with a second threaded hole at one end away from the first connecting member 410, the third operating member 480 may be provided as a first handle 481, the first handle 481 may be provided with a thirteenth connecting hole 482 corresponding to the second threaded hole, and the second connecting structure 400 may further include a locking screw 490. The locking screw 490 passes through the thirteenth connecting hole 482 and is threadedly connected to the second threaded hole to lock the first handle 481 with the locking member. In this way, the first handle 481 can be fixed to the latch 431 as a whole via the locking screw 490, ensuring that the first handle 481 can drive the latch 431 to rotate, thereby improving the reliability of the second connecting structure 400.

[0077] As shown in Figures 10, 11, and 12, in one embodiment, the first connecting mechanism further comprises a connecting lock 500, which is spaced apart from the second connecting structure 400. The connecting lock 500 further comprises a third connecting member 510, a first mounting member 520, a fourth operating member 530, a fourth connecting member 540, and a fifth connecting member 550. The third connecting member 510 is mounted on the member to be mounted, the first mounting member 520 is mounted on the main frame 310, the fourth operating member 530 is rotatably connected to the first mounting member 520, one end of the fourth connecting member 540 is rotatably connected to the fourth operating member 530, and the other end is rotatably connected to the fifth connecting member 550. The axis of rotation of the fourth operating member 530 relative to the first mounting member 520 is spaced apart from the axis of rotation of the fourth connecting member 540 relative to the fourth operating member 530. The fifth connecting member 550 is slidably engaged with the first mounting member 520 and is detachably connected to the third connecting member 510. Specifically, in this embodiment, the third connecting member 510 is mounted on the box body 100.

[0078] When the mounting bracket in the above embodiment is used, the third connecting member 510 is mounted on the back of the housing 100, and the first mounting member 520 is correspondingly mounted on the side wall of the main frame 310. The fourth operating member 530, the fourth connecting member 540, and the fifth connecting member 550 cooperate to form a crank connection structure, so that the fifth connecting member 550 can slide and extend relative to the first mounting member 520 to be detachably connected to the third connecting member 510. When it is necessary to securely connect the housing 100 to the main frame 310, the fourth operating member 530 is driven to rotate relative to the first mounting member 520, so that the fourth operating member 530 drives the fifth connecting member 550 to slide and extend in a direction close to the third connecting member 510 through the fourth connecting member 540, and the fifth connecting member 550 is detachably connected to the third connecting member 510 as a whole. When the box body 100 needs to be separated from the main frame 310, the fourth operating member 530 is driven to rotate in the opposite direction relative to the first mounting member 520, so that the fourth operating member 530 drives the fifth connecting member 550 to slide and retract in a direction away from the third connecting member 510 through the fourth connecting member 540, thereby releasing the detachable connection between the fifth connecting member 550 and the third connecting member 510. The present application controls the rotation direction of the fourth operating member 530 to achieve the sliding and retracting of the fifth connecting member 550, so that the fifth connecting member 550 can slide out and be detachably connected to the third connecting member 510 by plugging, or the fifth connecting member 550 can slide and retract, releasing the detachable connection between the fifth connecting member 550 and the third connecting member 510. The structure is safe and reliable, easy to disassemble and maintain, saves labor, and has high connection efficiency, thereby improving the reliability and practicality of the mounting bracket.

[0079] The third connector 510 can be fixed to the back of the box 100 by snapping, plugging, screwing, riveting, welding, or other fixed connection methods. The first mounting member 520 can be fixed to the side of the box 100 by snapping, plugging, screwing, riveting, welding, or other fixed connection methods. In other embodiments, the third connector 510 can also be installed on the main frame 310, and the first mounting member 520 can be correspondingly installed on the back of the box 100. The connecting lock 500 can also be applied to other detachable connection structures.

[0080] The number of connecting locks 500 can be flexibly adjusted according to actual needs. Specifically, in this embodiment, there are two connecting locks 500, and the two first connecting members 410 are respectively installed on the upper and lower sides of the back of the box 100. The first mounting member 520, the fourth operating member 530, the fourth connecting member 540 and the fifth connecting member 550 cooperate to form a lock assembly, and the two lock assemblies are correspondingly installed on the upper and lower sides of the main frame 310.

[0081] As shown in FIG12 , the first mounting member 520 may optionally be provided with a third sliding hole 521, and the fifth connecting member 550 may be passed through the third sliding hole 521 and slidably engaged with the third sliding hole 521. In this manner, the mounting seat may guide the fifth connecting member 550, ensuring that the fifth connecting member 550 may slide along the axis of the sliding hole to move closer to or away from the third connecting member 510, thereby improving the reliability of the connection lock 500.

[0082] As shown in Figures 11 and 12, in one embodiment, a slot 511 is provided on the outer wall of the third connecting member 510, and a plug-in portion 551 is provided on one end of the fifth connecting member 550 adjacent to the third connecting member 510. When the fourth operating member 530 is rotated to the locked position, the plug-in portion 551 is inserted into the slot 511, thereby forming an interference fit between the plug-in portion 551 and the slot 511. When the fourth operating member 530 is rotated to the unlocked position, the plug-in portion 551 is removed from the slot 511, thereby releasing the interference fit between the plug-in portion 551 and the slot 511. In this way, the plug-in portion 551 is in surface contact with the inner wall of the slot 511, thereby increasing their contact area. This increases the connection strength between the fifth connecting member 550 and the third connecting member 510, thereby improving the reliability of the connection lock 500.

[0083] As shown in Figures 11 and 12, the side wall of the plug portion 551 for interference fit with the slot 511 is optionally provided with an inclined surface 552. The inclined surface 552 is located on the side of the plug portion 551 close to the third connector 510 and is inclined toward the inner side of the plug portion 551. In this way, during the insertion of the plug portion 551 into the slot 511, the inclined surface 552 is spaced apart from the inner side wall of the slot 511 to serve as a guide, ensuring that the plug portion 551 can be smoothly inserted into the slot 511 and interference fit with the slot 511. When the plug portion 551 is plugged into the slot 511, the side wall of the plug portion 551 provided with the inclined surface 552 is correspondingly interference fit with the slot 511, allowing the fifth connector 550 to be detachably connected to the third connector 510 via the plug portion 551, thereby improving the convenience of connecting the lock 500.

[0084] As shown in Figure 12, in one embodiment, a first groove 553 is provided on one side of the plug portion 551 near the third connector 510. The ends of the first groove 553 extend to two opposing side walls of the plug portion 551. When the fourth operating member 530 is rotated to the locked position, the bottom wall of the slot 511 forms an interference fit with the first groove 553. Thus, the fifth connector 550 forms a Y-shaped latch structure, which applies both axial and shear forces between the plug portion 551 and the third connector 510. This allows the connection direction of the connecting lock 500 to be changed to adapt to different connection environments, thereby improving the applicability of the connecting lock 500.

[0085] Specifically in this embodiment, the third connecting member 510 includes a connecting boss and a screw body. The outer diameter of the connecting boss is larger than the outer diameter of the screw body. The connecting boss is connected to one end of the screw body to form a slot 511. The first groove 553 is arranged in a semi-cylindrical shape. When the fourth operating member 530 is rotated to the locking position, the plug-in portion 551 is provided with a side of the inclined surface 552 which is interference fit with the slot 511 (i.e., the connecting boss), and the screw body is interference fit with the first groove 553.

[0086] Optionally, the axis of rotation of the fourth operating member 530 relative to the first mounting member 520 is set as a first axis, the axis of rotation of the fourth connecting member 540 relative to the fourth operating member 530 is set as a second axis, and the axis of rotation of the fifth connecting member 550 relative to the fourth connecting member 540 is set as a third axis. When the first axis, the second axis, and the third axis are located in the same plane, the position of the second axis is set as a dead center position. When the fourth operating member 530 rotates to the locked position, the second axis passes through the dead center position. In this way, when the fourth operating member 530 rotates from the unlocked position to the locked position, the second axis passes through the dead center position. When the fourth operating member 530 rotates to the locked position, the fifth connecting member 550 has an interference fit with the first connection, allowing the third connecting member 510 to apply a reaction force to the fifth connecting member 550, thereby enabling the fourth operating member 530 to achieve a self-locking function when not rotating, thereby improving the reliability of the connection lock 500.

[0087] As shown in FIG12 , in one embodiment, the fourth operating member 530 is provided with a second limiting portion 531. When the fourth operating member 530 is rotated to the locked position, the second limiting portion 531 engages with the first mounting member 520 to limit the position. Thus, the second limiting portion 531 can function as a limiting portion, ensuring that the fourth operating member 530 can be quickly and reliably rotated to the locked position, thereby improving the convenience of connecting the lock 500.

[0088] As shown in FIG12 , the fourth operating member 530 is optionally provided with a third limiting portion 532. When the fourth operating member 530 is rotated to the unlocked position, the third limiting portion 532 engages with the first mounting member 520 to limit the position. Thus, the third limiting portion 532 can function as a limiting portion, ensuring that the fourth operating member 530 can be quickly and reliably rotated to the unlocked position, thereby improving the convenience of connecting the lock 500.

[0089] Optionally, the second limiting portion 531 is configured as a first limiting boss, and the third limiting portion 532 is configured as a second limiting boss, wherein the surface of the first limiting boss for limiting engagement with the first mounting member 520 and the surface of the second limiting boss for limiting engagement with the first mounting member 520 are arranged at an angle. Specifically, in this embodiment, the surface of the first limiting boss for limiting engagement with the first mounting member 520 and the surface of the second limiting boss for limiting engagement with the first mounting member 520 are arranged perpendicularly to each other, thereby limiting the fourth operating member 530 from rotating on the first mounting member 520 within a 90° range.

[0090] As shown in Figures 11 and 12, in one embodiment, the first mounting member 520 is provided with two third connecting portions 522 at intervals, and the fourth operating member 530 is provided with two fourth connecting portions 533 at intervals. Both fourth connecting portions 533 are located between the two third connecting portions 522 and rotatably engage with the two third connecting portions 522. The fourth connecting member 540 and the fifth connecting member 550 are both located between the two fourth connecting portions 533. In this manner, the first mounting member 520, the fourth operating member 530, the fourth connecting member 540, and the fifth connecting member 550 are centrally arranged, reducing the size of the lock module, ensuring that the lock module can be installed in a smaller space and improving the applicability of the connection lock 500. Furthermore, the presence of two third connecting portions 522 and two fourth connecting portions 533, both rotatably engaged with each other, increases the connection strength between the first mounting member 520 and the fourth operating member 530, thereby improving the reliability of the connection lock 500.

[0091] As shown in FIG12 , optionally, a transmission portion 554 is provided at one end of the fifth connecting member 550 away from the third connecting member 510, and there are two fourth connecting members 540, which are symmetrically arranged on either side of the transmission portion 554. One end of the two fourth connecting members 540 is rotationally engaged with the two fourth connecting members 533, and the other end of the two fourth connecting members 540 is rotationally engaged with the transmission portion 554. In this way, by increasing the number of fourth connecting members 540, the connection area between the fourth connecting member 540 and the fourth operating member 530 and the connection area between the fourth connecting member 540 and the fifth connecting member 550 are both increased, ensuring that the fourth operating member 530 can stably and reliably drive the fifth connecting member 550 to slide and retract via the fourth connecting member 540, thereby improving the reliability of the connection lock 500.

[0092] Specifically in this embodiment, the first mounting member 520 can be configured as a mounting seat, the fourth operating member 530 can be configured as an operating handle, the fourth connecting member 540 can be configured as a connecting plate, and the fifth connecting member 550 can be configured as a knockout pin. The lock assembly includes a first rotating shaft 561, a second rotating shaft 562, and a third rotating shaft 563. The two third connecting portions 522 are each provided with a fourteenth connecting hole 523, and the two fourth connecting portions 533 are each provided with a fifteenth connecting hole 534 corresponding to the fourteenth connecting hole 523. There are two first rotating shafts 561, and the two first rotating shafts 561 are correspondingly inserted into the two fourteenth connecting holes 523 and the two fifteenth connecting holes 534, so that the two fourth connecting portions 533 can be riveted to the two third connecting portions 522 via the two first rotating shafts 561. Each of the two fourth connecting parts 533 is further provided with an eccentric hole 535. One end of each of the two fourth connecting members 540 is provided with a sixteenth connecting hole 541 corresponding to the eccentric hole 535. The second rotating shaft 562 is correspondingly inserted through the two eccentric holes 535 and the two sixteenth connecting holes 541, so that the two connecting pieces can be riveted to the two fourth connecting parts 533 via the second rotating shaft 562. The ends of the two fourth connecting members 540 away from the operating handle are provided with a seventeenth connecting hole 542. The transmission portion 554 of the fifth connecting member 550 is provided with an eighteenth connecting hole 555 corresponding to the seventeenth connecting hole 542. The third rotating shaft 563 is inserted through the eighteenth connecting hole 555 and the two seventeenth connecting holes 542, so that the ejector pin can be riveted to the two connecting pieces via the third rotating shaft 563.

[0093] As shown in FIG. 1 and FIG. 13 , in one embodiment, the mounting frame further includes a second connecting mechanism, and the second connecting mechanism is used to detachably connect two adjacent main frames.

[0094] As shown in Figures 13, 14 and 15, specifically, the second connecting mechanism includes a third connecting structure 600, the third connecting structure 600 includes a first connecting component and a second connecting component, the first connecting component and the second connecting component are respectively installed on opposite sides of the main frame 310, the first connecting component includes a second mounting member 610, a sliding member 620, a sixth connecting member 630, a fifth limiting member 640 and a seventh connecting member 650, the sliding member 620 slides with the second mounting member 610, the sixth connecting member 630 is installed on the second mounting member 610, the fifth limiting member 640 and the seventh connecting member 650 are both sleeved on the outer wall of the sixth connecting member 630, the seventh connecting member 650 is connected to the sixth connecting member 630, and is transmission-matched with the fifth limiting member 640, so that the fifth limiting member 640 is limitedly matched with the sliding member 620, the second connecting component includes a third mounting member 710 and an eighth connecting member 720, the eighth connecting member 720 is installed on the third mounting member 710, and is detachably connected to the sliding member 620.

[0095] In the third connection structure 600 of the above embodiment, when in use, the sixth connection member 630 is rotated in the unlocking direction so that the restraining engagement between the fifth limiting member 640 and the sliding member 620 is released, and then the sliding member 620 is driven to slide relative to the second mounting member 610 to a preset position. The sixth connection member 630 is rotated in the locking direction so that the fifth limiting member 640 and the sliding member 620 are re-confined, ensuring that when the sliding member 620 is connected to the third mounting member 710, the connection angle between the second mounting member 610 and the third mounting member 710 is a preset fixed angle. Compared to the connection structure in the prior art, the sliding member 620 in the present application can slide relative to the second mounting member 610 and is restrained and fixed by the fifth limiting member 640, so that the connection angle between the second mounting member 610 and the third mounting member 710 is adjustable, meeting the requirements of different fixed angle connections, and improving the applicability of the third connection structure 600. In addition, the fifth limiting member 640 is driven by the cooperation of the sixth connecting member 630 and the seventh connecting member 650 to ensure that the fifth limiting member 640 can accurately and reliably cooperate with the sliding member 620 to ensure that the sliding member 620 will not slide relative to the second mounting member 610 during use, thereby improving the reliability of the third connecting structure 600.

[0096] The unlocking direction is opposite to the locking direction. Specifically in this embodiment, the unlocking direction is counterclockwise, and the locking direction is clockwise.

[0097] The number of third connecting structures 600 can be flexibly adjusted according to actual needs. Specifically, in this embodiment, there are two third connecting structures 600, with two first connecting components installed at intervals on one of the left and right sides of the main frame 310, and two second connecting components installed on the other of the left and right sides of the main frame 310.

[0098] The sixth connecting member 630 may be a bolt, a screw, or other connecting structure with an external thread 8223. The seventh connecting member 650 may be a nut, a screw sleeve, or other connecting structure with an internal thread 8213, and the external thread 8223 and the internal thread 8213 can be threadedly connected.

[0099] Specifically in this embodiment, the second mounting member 610 can be configured as a first mounting seat. The third mounting member 710 can be configured as a second mounting seat. The sliding member 620 can be configured as a slider. The fifth limiting member 640 can be configured as a limiting ring. In other embodiments, the fifth limiting member 640 and the seventh connecting member 650 can also be an integrated structure.

[0100] As shown in Figures 14, 15, and 16, the second mounting member 610 is further provided with a second slide groove 611 and a first through hole 612 that are interconnected. The sliding member 620 slidably engages with the second slide groove 611. The sliding member 620 is provided with a third slide groove 621 that extends in its own sliding direction (the direction indicated by E in Figure 13). The sixth connecting member 630 is passed through the first through hole 612 and the third slide groove 621 and slidably engages with the third slide groove 621. The fifth limiting member 640 is located on a side of the seventh connecting member 650 that is closer to the sliding member 620. In this way, the sliding member 620 can simultaneously slidably engage with the second mounting member 610 and the sixth connecting member 630, ensuring that the sliding member 620 can slide along a predetermined trajectory relative to the second mounting member 610, thereby improving the reliability of the third connection structure 600.

[0101] Specifically in this embodiment, the sliding direction of the sliding member 620 is set to be an arc direction.

[0102] As shown in Figures 14, 15 and 16, optionally, one end of the sixth connecting member 630 is threadedly connected to the seventh connecting member 650, and the seventh connecting member 650 is limited by the inner wall of the first through hole 612. The other end of the sixth connecting member 630 is in contact with the second mounting member 610, so that the seventh connecting member 650 can drive the fifth limiting member 640 to move in a direction close to the sliding member 620. The first connecting assembly also includes a third elastic member 660, which is sleeved on the outer wall of the sixth connecting member 630 and is located on the side of the fifth limiting member 640 close to the sliding member 620. The third elastic member 660 can undergo elastic deformation to drive the fifth limiting member 640 to move in a direction away from the sliding member 620. Thus, when the fifth limiting member 640 is required to engage with the sliding member 620 in a limited position, the sixth connecting member 630 is rotated in the unlocking direction, so that the seventh connecting member 650 can drive the fifth limiting member 640 to move in a direction closer to the sliding member 620, and the third elastic member 660 is compressed until the fifth limiting member 640 and the sliding member 620 are in contact with each other, thereby locking the sliding member 620 with the second mounting member 610. When the limited engagement between the fifth limiting member 640 and the sliding member 620 is required to be released, the sixth connecting member 630 is rotated in the unlocking direction, so that the seventh connecting member 650 moves in a direction away from the sliding member 620, and the third elastic member 660 is reset to drive the fifth limiting member 640 to move in a direction away from the sliding member 620 until the sliding member 620 can slide relative to the second mounting member 610 again, thereby improving the convenience and reliability of the third connection structure 600.

[0103] The third elastic member 660 may be a spring, an elastic sleeve or other elastic structures.

[0104] Specifically in this embodiment, the first connecting assembly further includes an operating handle 690, which is mounted on an end of the sixth connecting member 630 away from the seventh connecting member 650. The operating handle 690 is used to receive the torque that causes the sixth connecting member 630 to rotate about the central axis of the sixth connecting member 630. In this way, the convenience of the third connecting structure 600 is improved.

[0105] Among them, the third connection structure 600 in the present application can achieve stepped and stepless adjustment of the connection angle.

[0106] As shown in Figures 14 and 16, in one embodiment, the sliding member 620 is provided with at least two first limiting grooves 622 on a side near the fifth limiting member 640. The first limiting grooves 622 are spaced apart along the sliding direction of the sliding member 620. The fifth limiting member 640 is provided with a fourth limiting portion 641 and a fifth limiting portion 642. The seventh connecting member 650 is provided with a sixth limiting portion 651. When the sixth limiting portion 651 is engaged with the fifth limiting portion 642, the fourth limiting portion 641 can selectively engage with any one of the first limiting grooves 622. In this way, each first limiting groove 622 corresponds to a fixed connection angle. When the fourth limiting portion 641 is engaged with different first limiting grooves 622, the third connecting structure 600 can correspond to different connection angles. This facilitates the third connecting structure 600 to be quickly, accurately, and conveniently adjusted to a preset fixed angle, thereby improving the practicality of the third connecting structure 600.

[0107] Specifically in this embodiment, the fourth limiting portion 641 and the fifth limiting portion 642 are located on opposite sides of the fifth limiting member 640. Each first limiting groove 622 is connected to the third chute 621. One fourth limiting portion 641 cooperates with a group of first limiting grooves 622 to form an adjustment structure. The third connecting structure 600 includes two adjustment structures, which are respectively disposed on opposite sides of the third chute 621.

[0108] As shown in Figures 14 and 16 , the fifth limiting member 640 further includes a seventh limiting portion 643. The sixth limiting portion 651 can selectively engage with either the fifth limiting portion 642 or the seventh limiting portion 643. When the sixth limiting portion 651 engages with the seventh limiting portion 643, the projection of the fourth limiting portion 641 along the axis of the sixth connecting member 630 is located within the third sliding groove 621. In this way, the third connecting structure 600 can be switched between step-by-step adjustment and stepless adjustment without tools, depending on actual usage needs, thereby improving the practicality of the third connecting structure 600.

[0109] The number of the fourth limiting portion 641, the fifth limiting portion 642, the sixth limiting portion 651, and the seventh limiting portion 643 can be flexibly adjusted according to actual needs. Specifically, in this embodiment, the fourth limiting portion 641, the fifth limiting portion 642, and the seventh limiting portion 643 are all configured as limiting bosses, and the sixth limiting portion 651 is configured as a limiting groove.

[0110] As shown in Figures 14 and 16, the fifth limiting portion 642 and the seventh limiting portion 643 are spaced apart around the central axis of the sixth connecting member 630. The fifth limiting member 640 further includes an operating portion 644 for receiving a torque force that rotates the fifth limiting member 640 around the central axis of the sixth connecting member 630. Thus, by driving the operating portion 644, the fifth limiting member 640 rotates relative to the seventh connecting member 650, switching between the limiting engagement of the sixth limiting portion 651 with the fifth limiting portion 642 or the limiting engagement of the sixth limiting portion 651 with the seventh limiting portion 643, thereby improving the convenience of the third connecting structure 600.

[0111] The operating portion 644 is configured as an operating column, operating handle, or other operating structure. Specifically, in this embodiment, the projection area of ​​the seventh connecting member 650 is offset from the projection area of ​​the operating portion 644 along the central axis of the sixth connecting member 630. When stepless adjustment is required, the fifth limiting member 640 is rotated 90°, so that the sixth limiting portion 651 engages with the seventh limiting portion 643, and the fifth limiting member 640 disengages from the first limiting groove 622, allowing the sliding member 620 to slide steplessly to any connection angle and lock.

[0112] As shown in Figures 14 and 16, in one embodiment, the second mounting member 610 is provided with a second through hole 613 communicating with the second slide groove 611. The second through hole 613 and the first through hole 612 are spaced apart along the sliding direction of the sliding member 620. The first connecting assembly further includes a sixth stopper 670. The sixth stopper 670 is disposed through the second through hole 613 and the third slide groove 621 and slidably engages with the third slide groove 621. In this way, the sixth stopper 670 can further limit the position of the sliding member 620, ensuring that the sliding member 620 can stably and reliably reciprocate along the sliding direction of the sliding member 620, thereby improving the reliability of the third connecting structure 600.

[0113] Specifically in this embodiment, the sixth limiting member 670 can be configured as a limiting column.

[0114] Optionally, the second mounting member 610 is further provided with a second mounting hole 614, and the sliding member 620 is further provided with at least two second limiting grooves 623 on a side adjacent to the second mounting hole 614. The second limiting grooves 623 are spaced apart along the sliding direction of the sliding member 620. The first connecting assembly further includes a seventh limiting member 681, a fourth elastic member 682, and a positioning ball 683. The seventh limiting member 681 and the fourth elastic member 682 are both installed within the second mounting hole 614. The fourth elastic member 682 is located between the seventh limiting member 681 and the positioning ball 683, so that the positioning ball 683 can selectively engage with any of the second limiting grooves 623. In this way, the positioning ball 683 can elastically limit the sliding member 620 by cooperating with the seventh limiting member 681 and the fourth elastic member 682, ensuring that the sliding member 620 can stably and reliably move back and forth along the sliding direction of the sliding member 620, thereby improving the reliability of the third connecting structure 600.

[0115] Specifically in this embodiment, the seventh limiting member 681 is configured as a screw. The central axis of the first through hole 612, the central axis of the second through hole 613, and the central axis of the second mounting hole 614 are arranged parallel to each other, and the connecting lines between the two intersect.

[0116] As shown in Figures 14, 16, and 17, in one embodiment, the sliding member 620 is provided with a hook groove 624 and a first positioning portion 625, the third mounting member 710 is provided with a second positioning portion 711, the eighth connecting member 720 is configured as a buckle, and the second connecting assembly further includes a second handle 730, the second handle 730 is rotatably connected to the third mounting member 710, and the buckle is rotatably connected to the second handle 730. When the buckle engages with the hook groove 624 to close and lock the sliding member 620 and the third mounting member 710, the first positioning portion 625 and the second positioning portion 711 are limitedly engaged. Specifically, in this embodiment, the first positioning portion 625 is configured as a positioning boss, and the second positioning portion 711 is configured as a positioning groove. In this way, the third connecting structure 600 utilizes a concave-convex structure and a buckle during the closing and locking process to achieve precise positioning. Specifically, the third connecting structure 600 utilizes the concave-convex structure to restrict the relative position between the sliding member 620 and the third mounting member 710 in one direction. In the other perpendicular direction, during the buckle locking process, the buckle, under the action of the locking force, restricts the relative position between the sliding member 620 and the third mounting member 710. This ensures precise positioning of the third connecting structure 600 in both mutually perpendicular directions, thereby improving the reliability of the third connecting structure 600. Furthermore, after the buckle is unlocked, the second handle 730 can be rotated and stored, thereby reducing packaging and transportation space.

[0117] Optionally, the second connecting assembly further includes a return spring 740, a drive spring 760, and a safety buckle 750. The return spring 740 is sleeved on the outer wall of the buckle, with its ends connected to the buckle and the second handle 730, respectively. The safety buckle 750 is slidably mounted on the second handle 730, and the drive spring 760 is sleeved on the safety buckle 750 and engages with both the safety buckle 750 and the second handle 730. The safety buckle 750 is provided with a hook 751, and the third mounting member 710 is provided with a release boss 712, with the hook 751 being configured to engage with the release boss 712. When the lock is unlocked, the safety buckle 750 is slid, and the hook 751 is disengaged from the anti-loosening boss of the first mounting seat, thereby applying an external force to the second handle 730. When the second handle 730 is rotated to a range that satisfies the hook groove 624 of the slider, the buckle is automatically ejected from the hook groove 624 of the slider under the drive of the return spring 740, thereby achieving the automatic unlocking function. At this point, the first connecting component and the second connecting component are unlocked.

[0118] As shown in Figures 18, 19, 20 and 21, in one embodiment, the second connecting mechanism further includes a fourth connecting structure 800, the fourth connecting structure 800 includes a first hanging lock module 810 and a second hanging lock module 820, the first hanging lock module 810 and the second hanging lock module 820 are respectively installed on opposite sides of the main frame 310, the first hanging lock module 810 includes a ninth connecting member 811, one end of the ninth connecting member 811 is provided with a locking portion 8111, the second hanging lock module 820 includes a tenth connecting member 821 and a second locking member 822, the tenth connecting member 821 is provided with a mounting through hole 8211, and the second locking member 822 can be movably installed on the mounting In the through hole 8211, the second locking piece 822 is provided with a locking cavity 8222 having a first opening 8221 at one end close to the locking portion 8111. When the second locking piece 822 is in the released state, along the axial direction of the first opening 8221, the projection area of ​​the locking portion 8111 is located within the projection area of ​​the first opening 8221, so that the locking portion 8111 can extend into or move out of the locking cavity 8222. When the second locking piece 822 is in the locked state, along the axial direction of the first opening 8221, the projection area of ​​the locking portion 8111 is partially located outside the projection area of ​​the first opening 8221, so that the locking portion 8111 can be locked in the locking cavity 8222.

[0119] When the fourth connecting structure 800 in the above embodiment is used, the ninth connecting member 811 and the tenth connecting member 821 are respectively installed on the two main frames 310. When the two main frames 310 need to be connected as one, the two main frames 310 are first placed relative to each other so that the ninth connecting member 811 and the second locking member 822 are correspondingly arranged. Then, the second locking member 822 is driven to move relative to the tenth connecting member 821 so that the projection area of ​​the locking portion 8111 is located within the projection area of ​​the first opening 8221 along the axis of the first opening 8221, ensuring that the locking portion 8111 can extend into or out of the locking cavity 8222. Finally, after the locking portion 8111 is extended into the locking cavity 8222, the second locking member 822 is driven again to move relative to the tenth connecting member 821, so that along the axial direction of the first opening 8221, the projection area of ​​the locking portion 8111 is partially located outside the projection area of ​​the first opening 8221, so that the locking portion 8111 can be locked in the locking cavity 8222, thereby enabling the ninth connecting member 811, the second locking member 822 and the tenth connecting member 821 to cooperate to connect the two main frames 310 into one. Compared with the threaded quick connection lock in the prior art, the present application locks the locking part 8111 in the locking cavity 8222 by means of a limiting contact between the locking part 8111 and the inner wall of the second locking part 822, ensuring that the locking part 8111 cannot pass through the first opening 8221 to move out of the locking cavity 8222 when the second locking part 822 is in the locked state, thereby avoiding the problem of the second locking part 822 falling off due to fatigue failure of the thread, and improving the reliability of the fourth connection structure 800.

[0120] Among them, the number of the fourth connecting structure 800 can be flexibly adjusted according to the actual needs of use. Specifically in this embodiment, the first hanging lock module 810 is installed at the top of the main frame 310, and the second hanging lock module 820 is correspondingly installed at the bottom of the main frame 310, so that the two adjacent main frames 310 can be connected as a whole through the first hanging lock module 810 and the second hanging lock module 820. The cross-section of the locking cavity 8222 perpendicular to its own axis is a full circle shape, and the cross-section of the first opening 8221 perpendicular to its own axis is a non-full circle shape. The inner contour of the first opening 8221 is adapted to the outer contour of the locking portion 8111. The outer side wall of the locking portion 8111 includes oppositely arranged arc surfaces, and both arc surfaces are slidably matched with the inner side wall of the locking cavity 8222.

[0121] As shown in Figures 18, 19, and 21, the ninth connecting member 811 is further fixed to the main frame 310, and the second hanging lock module 820 further includes an eleventh connecting member 823. The eleventh connecting member 823 is sleeved on the tenth connecting member 821 and is used to fix the tenth connecting member 821 to the main frame 310. In this way, each main frame 310 is provided with the first hanging lock module 810 and the second hanging lock module 820, so that two adjacent main frames 310 can be connected as a whole through the first hanging lock module 810 and the second hanging lock module 820, thereby realizing the rapid splicing and assembly of multiple main frames 310.

[0122] The ninth connector 811 can be installed on the top of the main frame 310 by plugging, snapping, screwing or other fixed connection methods. The eleventh connector 823 can be installed on the bottom of the main frame 310 by plugging, snapping, screwing or other fixed connection methods to correspond to the tenth connector 821.

[0123] As shown in Figures 21 and 22, the eleventh connecting member 823 optionally has a stepped hole 8231, and the tenth connecting member 821 has a first flange 8212 at one end near the main frame 310. The first flange 8212 is located within the stepped hole 8231, so that the stepped surface 8232 of the stepped hole 8231 can cooperate with the main frame 310 to clamp and secure the first flange 8212. In this way, the tenth connecting member 821 can be fixed to the main frame 310 through the eleventh connecting member 823, thereby improving the convenience of the fourth connecting structure 800.

[0124] Specifically in this embodiment, the tenth connecting member 821 can be configured as a hanging lock seat, the eleventh connecting member 823 can be configured as a mounting cover, and the second locking member 822 can be configured as a hanging lock pull pin.

[0125] As shown in Figures 21 and 22, in one embodiment, the inner sidewall of the mounting hole 8211 is provided with an internal thread 8213, and the outer sidewall of the second locking member 822 is provided with an external thread 8223, with the internal thread 8213 being threadedly connected to the external thread 8223. In this way, the second locking member 822 can perform a spiral climbing motion within the mounting hole 8211 via the external thread 8223 and the internal thread 8213, allowing the second locking member 822 to move along its own axis relative to the locking portion 8111, ensuring that the side of the locking cavity 8222 provided with the first opening 8221 can contact and cooperate with the locking portion 8111 to tighten the two adjacent main frames 310, thereby improving the reliability of the fourth connection structure 800.

[0126] Specifically, in this embodiment, the main frame 310 blocks one end of the mounting hole 8211, and the inner diameter of the other end of the mounting hole 8211 is smaller than the outer diameter of the second locking member 822. Thus, if thread failure occurs between the internal thread 8213 and the external thread 8223, the main frame 310 can cooperate with the tenth connecting member 821 to retain the second locking member 822, ensuring that the second locking member 822 does not fall directly out of the mounting hole 8211, thereby preventing the main frame 310 from suddenly falling and improving the reliability and safety of the fourth connecting structure 800.

[0127] As shown in Figures 21 and 22, in one embodiment, the second hanging lock module 820 further includes a fifth operating member 824, which is located at an end of the second locking member 822 away from the ninth connecting member 811. The fifth operating member 824 is in transmission connection with the second locking member 822 and is used to receive the torque that causes the second locking member 822 to rotate relative to the tenth connecting member 821. In this way, the fifth operating member 824 can drive the second locking member 822 to perform a spiral climbing motion within the mounting through hole 8211, so as to move the second locking member 822 to a locked state. The second locking member 822 is in a position that abuts against the inner wall of the locking cavity 8222 on the side where the first opening 8221 is provided, thereby improving the convenience of the fourth connecting structure 800.

[0128] The fifth operating member 824 may be configured as an operating knob, an operating handle or other operating structures.

[0129] As shown in Figures 21 and 22, optionally, a second opening 8225 is provided on the inner wall of the locking cavity 8222 on the side away from the first opening 8221, and the fifth operating member 824 is provided with a third threaded hole 8242. The second hanging lock module 820 also includes a gasket 825 and a first screw 826. The gasket 825 is located in the locking cavity 8222 and is limitedly engaged with the inner wall of the locking cavity 8222 on the side where the second opening 8225 is provided. The gasket 825 is provided with a nineteenth connecting hole 8251 that is corresponding to and connected to the second opening 8225. The first screw 826 passes through the nineteenth connecting hole 8251 and the second opening 8225 and is threadedly connected to the third threaded hole 8242 to lock and fix the second locking member 822 and the fifth operating member 824. In this way, the second locking member 822 can be fixed to the fifth operating member 824 as a whole through the first bolt and the washer 825, ensuring that the second locking member 822 can rotate synchronously with the fifth operating member 824, thereby improving the reliability of the fourth connection structure 800.

[0130] As shown in Figures 21 and 22, optionally, one of the two surfaces where the fifth operating member 824 and the second locking member 822 engage with each other has a third limiting projection 8241, and the other has a limiting groove 8224, with the third limiting projection 8241 engaging with the limiting groove 8224. This increases the contact area between the fifth operating member 824 and the second locking member 822, ensuring that the fifth operating member 824 can drive the second locking member 822 to perform a spiral extension movement within the mounting through hole 8211, thereby improving the reliability of the fourth connecting structure 800.

[0131] The number of the third limiting projections 8241 and the limiting grooves 8224 can be flexibly adjusted according to actual usage needs. Specifically, in this embodiment, at least two limiting grooves 8224 are provided on the side of the second locking member 822 proximate to the fifth operating member 824, and each limiting groove 8224 is spaced apart around the axis of the second locking member 822. At least two third limiting projections 8241 are provided on the side of the fifth operating member 824 proximate to the second locking member 822, and each third limiting projection 8241 is corresponding to a respective limiting groove 8224.

[0132] As shown in Figures 21 and 22, in one embodiment, an eighth limiting portion 8214 is provided at one end of the tenth connecting member 821 proximal to the fifth operating member 824. The second lifting module further includes a second locking assembly 827, which is mounted on the fifth operating member 824 and locked with the eighth limiting portion 8214. Thus, when the second locking member 822 is in the locked state, the fifth operating member 824 can be locked integrally with the tenth connecting member 821 through the cooperation of the second locking assembly 827 and the eighth limiting portion 8214, effectively restricting the rotation of the fifth operating member 824 and improving the reliability of the fourth connecting structure 800.

[0133] As shown in Figures 21 and 22, optionally, the eighth limiting portion 8214 is provided with at least one tooth groove 8215, each tooth groove 8215 is arranged along the circumferential direction of the tenth connecting member 821, and each tooth groove 8215 includes a first side surface and a second side surface arranged at an angle, and the second locking assembly 827 includes a button tongue 8271 and a tension spring 8272, and the button tongue 8271 can be rotatably mounted on the fifth operating member 824, and one end of the tension spring 8272 is connected to the fifth operating member 824, and the other end is connected to the button tongue 8271, so that the button tongue 8271 can be stuck in the tooth groove 8215 and limitedly cooperate with both the first side surface and the second side surface. In this way, the button latch 8271, the tension spring 8272, and the tooth groove 8215 cooperate to form a ratchet structure, which can realize the function of unidirectional rotation of the fifth operating member 824 to lock two adjacent main frames 310. The ratchet structure does not cause the problem of getting stuck, and is simple and efficient to operate. It can be used in some scenarios with limited construction space, and improves the practicality of the fourth connecting structure 800. In addition, the ratchet structure can also provide feedback on the locking state of the fifth operating member 824. That is, the user can determine whether the fifth operating member 824 is in the locked state by whether the button latch 8271 is engaged with the tooth groove 8215, which improves the operating experience of the fourth connecting structure 800.

[0134] Specifically in this embodiment, the tooth groove 8215 can be configured as a V-shaped tooth opening, with the first and second side surfaces arranged at 90 degrees. The eighth stopper 8214 is configured to offset the central axis of the cylinder to facilitate unlocking the button tongue 8271 and disengaging the V-shaped tooth opening. Each V-shaped tooth opening is correspondingly provided on the outer wall on one side of the offset cylindrical center axis. The button tongue 8271 and the tension spring 8272 are correspondingly provided on the side of the offset cylindrical center axis where the V-shaped tooth opening is provided.

[0135] As shown in Figures 18 and 19, in one embodiment, a third mounting hole is provided at one end of the main frame 310, and the ninth connecting member 811 is configured as a hanging lock column. The end of the hanging lock column away from the locking portion 8111 extends into the main body into the third mounting hole, and is limitedly matched with the third mounting hole along the circumferential direction of the hanging lock column. The end of the hanging lock column away from the locking portion 8111 is provided with a fourth threaded hole, and the first hanging lock module 810 also includes a second screw 812, which extends into the third mounting hole and is threadedly connected to the fourth threaded hole to fix the main frame 310 and the hanging lock column as one.

[0136] Specifically in this embodiment, a fourth mounting hole is provided at one end of the main frame 310 away from the third mounting hole. The third mounting hole on the main frame 310 corresponds to the fourth mounting hole on the adjacent main frame 310. The hanging lock post includes a limiting section 8112 and a cylindrical section 8113. The limiting section 8112, the cylindrical section 8113, and the locking portion 8111 are sequentially connected. When the second locking member 822 is in the locked state, the limiting section 8112 extends into the fourth mounting hole and engages with the fourth mounting hole along the circumferential direction of the limiting section 8112. The cylindrical section 8113 passes through the mounting through-hole 8211 and the first opening 8221. In this way, the hanging lock post can limit relative rotation between two adjacent main frames 310, thereby improving the reliability and convenience of the fourth connection structure 800.

[0137] In one embodiment, a display unit is provided, comprising the mounting bracket according to any one of the above embodiments.

[0138] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0139] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0140] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0141] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0142] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0143] It should also be understood that when explaining the connection relationship or positional relationship of elements, even if not explicitly described, the connection relationship and positional relationship should be interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately," "approximately," or "substantially" can mean within one or more standard deviations, which is not limited here.

[0144] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0145] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A mounting bracket, comprising: A frame body, the frame body comprising a main frame and a reinforcement frame, the main frame being provided with an avoidance hole, one end of the reinforcement frame being rotatably connected to an inner side wall of the avoidance hole, and the other end being provided with a first connection structure, the first connection structure being used to be detachably connected to the other inner side wall of the avoidance hole and to apply a tensioning force to the main frame; and A first connecting mechanism is installed on the main frame and is used to detachably connect the component to be installed to the main frame.

2. The mounting bracket according to claim 1, wherein: A first connecting hole is provided on the other inner side wall of the avoidance hole. The first connecting structure includes a telescopic rotating shaft, which is movably arranged on the reinforcing frame. When the reinforcing frame is rotated to a first preset position relative to the main frame, the telescopic rotating shaft can extend into the first connecting hole and squeeze the inner side wall of the first connecting hole.

3. The mounting bracket according to claim 2, wherein: The reinforcement frame is provided with a second connection hole corresponding to the first connection hole, and the outer side wall of the telescopic shaft is provided with a sliding portion, and the sliding portion and the inner side wall of the second connection hole are slidably matched along a spiral line.

4. The mounting bracket according to claim 3, wherein: The sliding portion is configured as a spiral groove.

5. The mounting bracket according to claim 2 or 3, wherein: The first connecting structure further includes a first operating member, which is in transmission cooperation with an end of the telescopic shaft away from the first connecting hole, so as to be able to drive the telescopic shaft to extend into or move out of the first connecting hole.

6. The mounting bracket according to any one of claims 2 to 5, wherein: The frame body also includes a first locking assembly. When the telescopic shaft extends into the first connecting hole and squeezes the inner wall of the first connecting hole on the side close to the avoidance hole, the first locking assembly locks with the first operating member to limit the rotation of the first operating member.

7. The mounting bracket according to claim 6, wherein: The first locking assembly includes a first elastic member, a first latch and an unlocking member. The first elastic member and the first latch are both installed in the first mounting hole. The first elastic member is located on the side of the first latch away from the first limiting portion. The unlocking member is passed through the second sliding hole and is transmission-connected to the first latch.

8. The mounting bracket according to any one of claims 1 to 7, wherein: in, The frame body also includes a fixed rotation shaft and a second limit member. The reinforcing frame is provided with a sixth connection hole and a seventh connection hole at one end away from the first connection structure. The seventh connection hole extends to the inner side wall of the sixth connection hole. The inner side wall of the avoidance hole is provided with an eighth connection hole corresponding to the sixth connection hole. The first end of the fixed rotation shaft extends into the sixth connection hole and rotatably cooperates with the sixth connection hole. The second end of the fixed rotation shaft extends into the eighth connection hole and rotatably cooperates with the eighth connection hole.

9. The mounting bracket according to any one of claims 1 to 8, wherein: The first connecting mechanism includes a second connecting structure, the second connecting structure includes a first connecting member, a second connecting member and a first locking member, one of the first connecting member and the second connecting member is installed on the member to be installed, and the other is installed on the main frame, and the second connecting structure is used to detachably connect the member to be installed and the main frame.

10. The mounting bracket according to claim 9, wherein: The first connecting member is provided with a ninth connecting hole; the second connecting member is provided with a tenth connecting hole corresponding to the ninth connecting hole; the first locking member is passed through the tenth connecting hole and slides with the second connecting member along the spiral direction, so that the first locking member can extend into the ninth connecting hole to lock the first connecting member with the second connecting member.

11. The mounting bracket according to claim 10, wherein: The first locking member is configured as a latch, and the outer wall of the latch is provided with a first sliding groove, which extends along the spiral direction. The outer wall of the second connecting member is provided with an eleventh connecting hole corresponding to and connected to the tenth connecting hole. The second connecting structure also includes a third limiting member, which is passed through the eleventh connecting hole and slidably cooperates with the first sliding groove.

12. The mounting bracket according to any one of claims 1 to 11, wherein: The first connecting mechanism also includes a connecting lock, and the connecting lock also includes a third connecting member, a first mounting member, a fourth operating member, a fourth connecting member and a fifth connecting member. The third connecting member is installed on the member to be installed, and the first mounting member is installed on the main frame. The fourth operating member, the fourth connecting member 5 and the fifth connecting member cooperate to form a crank connection structure, so that the fifth connecting member can slide and retract relative to the first mounting member so as to be detachably connected to the third connecting member.

13. The mounting bracket according to claim 12, wherein: The fourth operating member is rotatably connected to the first mounting member, one end of the fourth connecting member is rotatably connected to the fourth operating member, and the other end is rotatably connected to the fifth connecting member, the axis of rotation of the fourth operating member relative to the first mounting member and the axis of rotation of the fourth connecting member relative to the fourth operating member are spaced apart, and the fifth connecting member is slidably fitted with the first mounting member.

14. The mounting bracket according to claim 12 or 13, wherein: A slot is provided on the outer side wall of the third connecting member, and a plug-in portion is provided at one end of the fifth connecting member. When the fourth operating member is rotated to the locked position, the plug-in portion is inserted into the slot; when the fourth operating member is rotated to the unlocked position, the plug-in portion is moved out of the slot.

15. The mounting bracket according to any one of claims 1 to 14, wherein: The mounting frame further includes a second connecting mechanism, which is used to detachably connect two adjacent main frames.

16. The mounting bracket according to claim 15, wherein: The second connecting mechanism includes a third connecting structure, and the third connecting structure includes a first connecting component and a second connecting component. The first connecting component and the second connecting component are respectively installed on opposite sides of the main frame. The first connecting component includes a second mounting member, a sliding member, a sixth connecting member, a fifth limiting member and a seventh connecting member. The sliding member slides with the second mounting member, and the sixth connecting member is installed on the second mounting member. The fifth limiting member and the seventh connecting member are both sleeved on the outer side wall of the sixth connecting member. The seventh connecting member is connected to the sixth connecting member and is transmission-matched with the fifth limiting member, so that the fifth limiting member is limitedly matched with the sliding member. The second connecting component includes a third mounting member and an eighth connecting member. The eighth connecting member is installed on the third mounting member and is detachably connected to the sliding member.

17. The mounting bracket according to claim 15, wherein: The second connecting mechanism also includes a fourth connecting structure, which includes a first hanging lock module and a second hanging lock module. The first hanging lock module and the second hanging lock module are respectively installed on opposite sides of the main frame. The first hanging lock module includes a ninth connecting member, and a locking portion is provided at one end of the ninth connecting member. The second hanging lock module includes a tenth connecting member and a second locking member. The tenth connecting member is provided with a mounting through hole. The second locking member is movably installed in the mounting through hole. The second locking member is provided with a locking cavity having a first opening at one end near the locking portion. When the second locking member is in a released state, a projected area of ​​the locking portion is located within the projected area of ​​the first opening along the axis of the first opening, so that the locking portion can extend into or move out of the locking cavity. When the second locking member is in a locked state, a projected area of ​​the locking portion is partially located outside the projected area of ​​the first opening along the axis of the first opening, so that the locking portion can be locked in the locking cavity.

18. A display unit comprising the mounting bracket according to any one of claims 1 to 17.

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