Support frame and LED display screen with same

Abstract

The utility model provides a kind of support frame and the LED display screen with it, comprising: LED display box, support seat and connecting rod.The side of support seat is provided with connecting plate, and first positioning member is provided on connecting plate;Connecting rod includes the stem and the locking sliding sleeve being set on stem, and second positioning member is set on stem, which can be matched with first positioning member, to limit stem and connecting plate along the first direction separation, and the locking sliding sleeve includes sleeve and locking jack rod, and the locking sliding sleeve has assembly state and locking state, when locking sliding sleeve is in assembly state, locking sliding sleeve is movably arranged along the axial direction of stem, when locking sliding sleeve is in locking state, sleeve is sleeved on stem and connecting plate outside, and locking jack rod locks sleeve on stem, to limit stem and connecting plate along the second direction and third direction separation.The technical scheme of the application can effectively solve the problem that the support frame in related art cannot meet the requirement of quick disassembly and assembly.

Description

Technical Field

[0001] This utility model relates to the field of LED display technology, and more specifically, to a support frame and an LED display screen having the same. Background Technology

[0002] Among related technologies, the floor tile LED display device is an LED display screen designed specifically for ground displays. It brings a brand-new visual and interactive experience to various scenarios through flexible interactive functions. Based on the above characteristics, the floor tile LED display device is widely used in stage performances, commercial displays, etc.

[0003] A tile-type LED display device generally consists of a support frame and an LED display cabinet. The support frame includes a support base and connecting rods.

[0004] However, existing support bases and connecting rods are generally fitted with screws. When installing and disassembling floor tile-type LED display devices, it is usually necessary to remove all the screws and reconnect the support base and connecting rods, which cannot meet the requirements for quick assembly and disassembly. Utility Model Content

[0005] The main objective of this invention is to provide a support frame and an LED display screen having the same, so as to solve the problem that the support frames in related technologies cannot meet the requirements for quick assembly and disassembly.

[0006] To achieve the above objectives, according to one aspect of the present invention, a support frame is provided for supporting an LED display cabinet below it, comprising: multiple support bases and multiple connecting rods; the multiple support bases are arranged in an array and used to support the corners of the LED display cabinet; the connecting rods connect adjacent support bases; wherein a connecting plate is provided on the side of each support base, and a first positioning member is provided on the connecting plate; the connecting rod includes a rod body and a locking sleeve provided on the rod body; a second positioning member is provided on the rod body that can cooperate with the first positioning member to limit the rod body and... The connecting plate separates along a first direction. The locking sleeve includes a sleeve and a locking rod. The locking sleeve has an assembled state and a locked state. When the locking sleeve is in the assembled state, it is movably arranged along the axial direction of the rod. When the locking sleeve is in the locked state, the sleeve is sleeved on the outside of the rod and the connecting plate. The locking rod locks the sleeve on the rod to restrict the separation of the rod and the connecting plate along a second direction and a third direction. The first direction is the axial direction of the rod. The second direction and the third direction are both perpendicular to the first direction and intersect with the third direction.

[0007] Furthermore, the end of the rod is provided with a stepped portion, and the second positioning member is provided at the stepped portion. When the locking sleeve is in the locked state, the connecting plate extends into the stepped portion, and the first positioning member and the second positioning member cooperate with each other. One of the first positioning member and the second positioning member is an insertion recess, and the other of the first positioning member and the second positioning member is an insertion protrusion. The extension direction of the insertion protrusion is set at an angle to the first direction.

[0008] Furthermore, the locking rod includes a connecting screw and an operating block. The connecting screw passes through the top wall of the sleeve, and the operating block is located at the outer end of the connecting screw.

[0009] Furthermore, the locking rod also includes an abutment head disposed at the inner end of the connecting screw, the end of the abutment head away from the connecting screw having a convex arc surface for abutting and engaging with the rod body.

[0010] Furthermore, the rod body has a cavity extending through it in the axial direction, and a first transverse partition is provided inside the cavity. A first guide groove for the connecting screw to pass through is provided on the top plate of the rod body, and a second guide groove for the connecting screw to pass through is provided on the first transverse partition. The second guide groove has a first groove segment and a second groove segment connected together. The transverse cross-sectional dimension of the first groove segment is larger than the transverse cross-sectional dimension of the abutment head, so that the abutment head can pass through the first groove segment. In the width direction of the second groove segment, the dimension of the second groove segment is smaller than the dimension of the abutment head, so that the first transverse partition can stop the abutment head.

[0011] Furthermore, a second transverse partition is provided inside the cavity, and an avoidance hole corresponding to the first groove section is provided on the second transverse partition. The locking sleeve also has a retractable state. When the locking sleeve is in the retractable state, the push head extends into the avoidance hole to reduce the size of the locking push rod protruding from the sleeve.

[0012] Furthermore, the sleeve includes a sleeve body, the top of which has an opening extending through in a first direction, and a top wall disposed at the opening.

[0013] Furthermore, the sleeve body includes a first top flange and a second top flange spaced apart, an opening is provided between the first top flange and the second top flange, a top wall is stacked with the first top flange and the second top flange, and the locking sleeve also includes fasteners passing through the first top flange and the top wall.

[0014] Furthermore, a sliding fit structure is provided between the top wall and the first top flange and / or the second top flange.

[0015] According to another aspect of the present invention, an LED display screen is provided, including a support frame and an LED display cabinet, wherein the support frame is the support frame described above.

[0016] Applying the technical solution of this utility model, a connecting plate is provided on the side of the support base, and the connecting rod includes a rod body. Through the cooperation of the first positioning member on the connecting plate and the second positioning member on the rod body, the separation of the connecting plate and the rod body along the first direction can be restricted, thereby achieving the fixation of the support base and the connecting rod along the first direction. The connecting rod also includes a locking sleeve provided on the rod body. The locking sleeve has an assembled state and a locked state. When the user needs to assemble or disassemble the support frame, the locking top rod is operated to make the locking sleeve movable along the axial direction of the rod body, that is, the locking sleeve is in the assembled state. The user can move the locking sleeve along the first direction to a suitable position on the rod body to assemble or disassemble the support frame. When the user needs to lock the support base and the connecting rod, the locking top rod is operated to lock the sleeve on the rod body to restrict the separation of the rod body and the connecting plate along the second and third directions, thereby achieving the fixation of the support base and the connecting rod along the second and third directions. Compared to related technologies where the support base and connecting rod are assembled and disassembled using screws, requiring the tightening or removal of all screws, this embodiment only requires operating the locking top rod to press against or loosen from the rod body, and moving the sleeve along the axial direction of the rod body to achieve rapid assembly or disassembly of the support base and connecting rod. Therefore, the technical solution of this utility model can effectively solve the problem that the support frame in related technologies cannot meet the requirements for rapid assembly and disassembly. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A perspective structural schematic diagram of an embodiment of the support frame according to the present invention is shown;

[0019] Figure 2 It shows Figure 1 Enlarged view of point A on the support frame;

[0020] Figure 3 It shows Figure 1 A side view of a portion of the support frame structure;

[0021] Figure 4 It shows Figure 3 An enlarged view of point B on the support frame, showing the locking sleeve in the assembled state;

[0022] Figure 5 It shows Figure 3 An enlarged view of point C on the support frame, showing the locking sleeve in the locked state;

[0023] Figure 6 It shows Figure 1 A schematic diagram of the exploded structure of the support frame;

[0024] Figure 7 It shows Figure 6 Enlarged view of point D of the support frame;

[0025] Figure 8 It shows Figure 1 A three-dimensional structural diagram of the connecting rod of the support frame;

[0026] Figure 9 It shows Figure 1 A three-dimensional structural diagram of the support frame's rods;

[0027] Figure 10 It shows Figure 9 A cross-sectional schematic diagram of a portion of the rod's structure;

[0028] Figure 11 It shows Figure 1 A three-dimensional structural diagram of the locking sleeve of the support frame;

[0029] Figure 12 It shows Figure 11 An exploded view of the locking sleeve;

[0030] Figure 13 A three-dimensional structural schematic diagram of an LED display screen according to the present invention is shown.

[0031] The above figures include the following reference numerals:

[0032] 1. LED display cabinet; 2. Support base; 3. Connecting rod;

[0033] 10. Connecting plate; 11. First positioning component;

[0034] 20. Rod body; 201. Cavity; 21. Second positioning element; 22. Step portion; 23. First transverse partition; 231. Second guide groove; 2311. First groove segment; 2312. Second groove segment; 24. Top plate; 241. First guide groove; 25. Second transverse partition; 251. Clearance hole; 26. Bottom plate; 27. First side plate; 28. Second side plate;

[0035] 30. Locking sleeve; 301. Opening; 31. Sleeve; 311. Top wall; 3111. Third connecting hole; 3112. Fourth connecting hole; 3113. Slider; 312. Sleeve body; 3121. First top flange; 31211. First connecting hole; 3122. Second top flange; 31221. Second connecting hole; 32. Locking rod; 321. Connecting screw; 322. Operating block; 323. Abutment head; 3231. Convex arc surface; 33. Fastener; 34. Sliding fit structure. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0037] like Figures 1 to 8 and Figure 13 As shown, this application provides a support frame for supporting an LED display cabinet 1. An embodiment of the support frame includes multiple support bases 2 and multiple connecting rods 3. The multiple support bases 2 are arranged in an array to support the corners of the LED display cabinet 1. The connecting rods 3 connect adjacent support bases 2. A connecting plate 10 is provided on the side of each support base 2, and a first positioning element 11 is provided on the connecting plate 10. The connecting rod 3 includes a rod body 20 and a locking sleeve 30 provided on the rod body 20. A second positioning element 21 that can cooperate with the first positioning element 11 is provided on the rod body 20 to limit the rod body 20 and the connecting plate 10 along a first direction a. The locking sleeve 30 includes a sleeve 31 and a locking rod 32. The locking sleeve 30 has an assembled state and a locked state. When the locking sleeve 30 is in the assembled state, it is movably arranged along the axial direction of the rod 20. When the locking sleeve 30 is in the locked state, the sleeve 31 is sleeved on the rod 20 and the connecting plate 10. The locking rod 32 locks the sleeve 31 on the rod 20 to restrict the separation of the rod 20 and the connecting plate 10 along the second direction b and the third direction c. The first direction a is the axial direction of the rod 20. The second direction b and the third direction c are both perpendicular to the first direction a and intersect with the third direction c.

[0038] Applying the technical solution of this embodiment, a connecting plate 10 is provided on the side of the support base 2, and the connecting rod 3 includes a rod body 20. Through the cooperation of the first positioning member 11 on the connecting plate 10 and the second positioning member 21 on the rod body 20, the connecting plate 10 and the rod body 20 can be restricted from separating along the first direction a, thereby realizing the fixation of the support base 2 and the connecting rod 3 along the first direction a. The connecting rod 3 also includes a locking sleeve 30 disposed on the rod body 20. The locking sleeve 30 has an assembled state and a locked state. When the user needs to assemble or disassemble the support frame, the locking top rod 32 is operated to make the locking sleeve 30 movable along the axial direction of the rod body 20, that is, the locking sleeve 30 is in the assembled state. The user can move the locking sleeve 30 along the first direction a to a suitable position on the rod body 20 to assemble or disassemble the support frame. When the user needs to lock the support seat 2 and the connecting rod 3, the locking top rod 32 is operated to lock the sleeve 31 on the rod body 20 to restrict the separation of the rod body 20 and the connecting plate 10 along the second direction b and the third direction c, thereby realizing the fixation of the support seat 2 and the connecting rod 3 along the second direction b and the third direction c. Compared to related technologies where the support base and connecting rod are assembled and disassembled using screws, requiring the tightening or removal of all screws, this embodiment only requires operating the locking rod 32 to press against or release from the rod body 20, and moving the sleeve 31 along the axial direction of the rod body 20 to achieve rapid assembly or disassembly of the support base 2 and connecting rod 3. Therefore, the technical solution of this embodiment can effectively solve the problem that the support frame in related technologies cannot meet the requirements for rapid assembly and disassembly.

[0039] Specifically, during the assembly of the support frame, firstly, the locking sleeve 30 is fitted onto the rod 20. The locking sleeve 30 is then moved along the first direction a to a position that avoids the connecting plate 10. Next, the first positioning member 11 on the connecting plate 10 and the second positioning member 21 on the rod 20 are connected. Then, the locking sleeve 30 is moved along the first direction a to the end of the rod 20 so that the sleeve 31 fits over the rod 20 and the connecting plate 10. Simultaneously, the locking top rod 32 is operated to fix the sleeve 31 and the rod 20, thus fixing the connecting plate 10 and the rod 20 in three directions, completing the assembly of the support base 2 and the connecting rod 3. The steps for disassembling the support frame are the reverse of the above steps and will not be described in detail.

[0040] It should be noted that two locking sleeves 30 are provided on one rod body 20. The two locking sleeves 30 are respectively provided at the two ends of the rod body 20. The connection between the connecting rod 3 and the support seat 2 is achieved through the connection and cooperation of the locking sleeves 30 and the connecting plate 10.

[0041] It should be noted that the "first direction a" mentioned above refers to the direction parallel to the center line of the rod 20, the "second direction b" mentioned above refers to the direction perpendicular to the first direction a and parallel to the base plate 26 of the rod 20, and the "third direction c" mentioned above refers to the direction perpendicular to the first direction a and the second direction b.

[0042] like Figures 3 to 5 and Figure 9 As shown, the end of the rod 20 is provided with a stepped portion 22, and the second positioning member 21 is disposed at the stepped portion 22. When the locking sleeve 30 is in the locked state, the connecting plate 10 extends into the stepped portion 22, and the first positioning member 11 and the second positioning member 21 cooperate with each other. One of the first positioning member 11 and the second positioning member 21 is a recessed insertion portion, and the other is a protruding insertion portion. The extending direction of the protruding insertion portion is angled to the first direction a. The stepped portion 22 at the end of the rod 20 enables quick insertion and connection of the connecting plate 10 and the rod 20, facilitating installation.

[0043] In this embodiment, the first positioning member 11 is a recessed insertion portion, and the second positioning member 21 is a protruding insertion portion. The extending direction of the protruding insertion portion is angled to the first direction a. Correspondingly, the extending direction of the recessed insertion portion is also angled to the first direction a and is the same as the extending direction of the protruding insertion portion, thereby achieving the cooperation between the first positioning member 11 and the second positioning member 21. Preferably, the extending direction of the second positioning member 21 forms a 90° angle with the first direction a, which can better achieve the fixation of the connecting plate 10 and the rod 20 along the first direction a.

[0044] It should be noted that in the embodiment not shown in the figure, the first positioning member is an insertion protrusion and the second positioning member is an insertion recess.

[0045] It should be noted that the lower end of the second positioning member 21 has a beveled structure, which allows the second positioning member 21 to be quickly inserted into the first positioning member 11, thereby achieving the engagement between the first positioning member 11 and the second positioning member 21. The connecting plate 10 can be provided with multiple first positioning members 11, and correspondingly, the rod body 20 is provided with multiple second positioning members 21 of the same number. The first positioning member 11 can be a cylindrical groove, a rectangular groove, or a polygonal groove, etc., and the second positioning member 21 can be a cylinder, a rectangular column, or a polygonal column, etc.

[0046] like Figures 3 to 5 , Figure 11 and Figure 12As shown, the locking top rod 32 includes a connecting screw 321 and an operating block 322. The connecting screw 321 passes through the top wall 311 of the sleeve 31, and the operating block 322 is located at the outer end of the connecting screw 321. By providing the operating block 322 on the locking top rod 32, the user can easily hold and rotate the operating block 322 to adjust the height of the connecting screw 321, thereby enabling the locking sleeve 30 to switch between the locked state and the assembled state.

[0047] It should be noted that the "outer end" mentioned above refers to the end of the connecting screw 321 that is away from the sleeve 31.

[0048] like Figure 11 and Figure 12 As shown, the locking push rod 32 also includes a push head 323 disposed at the inner end of the connecting screw 321. The end of the push head 323 away from the connecting screw 321 has a convex arc surface 3231 for abutting against the rod body 20. When the locking sleeve 30 is in the locked state, the push head 323 abuts against the rod body 20. By providing the convex arc surface 3231 at the end of the push head 323, damage to the rod body 20 can be avoided when the push head 323 abuts against the rod body 20.

[0049] It should be noted that the "inner end" mentioned above refers to the end of the connecting screw 321 located inside the sleeve 31.

[0050] like Figures 3 to 5 , Figure 9 and Figure 10As shown, the rod body 20 has a cavity 201 that extends through the axial direction. The cavity 201 has a first transverse partition 23. The top plate 24 of the rod body 20 has a first guide groove 241 for the connecting screw 321 to pass through. The first transverse partition 23 has a second guide groove 231 for the connecting screw 321 to pass through. The second guide groove 231 has a first groove segment 2311 and a second groove segment 2312 that are connected. The transverse cross-sectional dimension of the first groove segment 2311 is larger than the transverse cross-sectional dimension of the abutment head 323, so that the abutment head 323 can pass through the first groove segment 2311. In the width direction of the second groove segment 2312, the dimension of the second groove segment 2312 is smaller than the dimension of the abutment head 323, so that the first transverse partition 23 can stop the abutment head 323. A first guide groove 241 is provided on the top plate 24. The length of the first guide groove 241 in the width direction is greater than the transverse cross-sectional dimension of the abutment head 323 so that the abutment head 323 can pass through the top plate 24. A second guide groove 231 is provided on the first transverse partition 23. The second guide groove 231 has a first groove segment 2311 and a second groove segment 2312 connected together. The transverse cross-sectional dimension of the first groove segment 2311 is greater than the transverse cross-sectional dimension of the abutment head 323 so that the abutment head 323 can pass through the first groove segment 2311. In the width direction of the second groove segment 2312, the dimension of the second groove segment 2312 is smaller than the dimension of the abutment head 323 so that the first transverse partition 23 can stop the abutment head 323 and restrict the abutment head 323 from detaching upward.

[0051] like Figure 4 and Figure 5 As shown, a slider 3113 is provided on the top wall 311 of the sleeve 31, and a threaded hole for the connecting screw 321 to pass through is provided on the slider 3113. On the one hand, the slider 3113 can guide and cooperate with the first guide groove 241, and on the other hand, it can increase the thread fit size between the top wall 311 and the connecting screw 321.

[0052] like Figures 3 to 5 , Figure 9 and Figure 10 As shown, a second transverse partition 25 is also provided inside the cavity 201. The second transverse partition 25 is provided with a clearance hole 251 corresponding to the first groove segment 2311. The locking sleeve 30 also has a retracted state. When the locking sleeve 30 is in the retracted state, the abutment head 323 extends into the clearance hole 251 to reduce the size of the locking rod 32 protruding from the sleeve 31. By providing a clearance hole 251 corresponding to the first groove segment 2311 on the second transverse partition 25, when the locking sleeve 30 moves along the first direction a and the abutment head 323 corresponds to the clearance hole 251, the abutment head 323 can extend into the clearance hole 251, thereby making most of the structure of the locking rod 32 located inside the cavity 201. At this time, the locking sleeve 30 switches to the retracted state, which facilitates the storage and transportation of the connecting rod 3.

[0053] Specifically, the rod 20 also includes a base plate 26, a first side plate 27, and a second side plate 28. The rod 20 has a four-layer plate structure. The main structure of the rod 20 is manufactured by extrusion molding, which has the advantages of high production efficiency, simple production steps, and uniform product quality. Among them, the stepped part 22, the first guide groove 241, the second guide groove 231, and the clearance hole 251 are processed by cutting and drilling after the main structure of the rod 20 is manufactured.

[0054] like Figure 11 and Figure 12 As shown, the sleeve 31 includes a sleeve body 312, the top of which has an opening 301 extending through along a first direction a, and a top wall 311 is disposed at the opening 301. The sleeve 31 includes a sleeve body 312 and a top wall 311. The sleeve 31 adopts a split structure design, which facilitates the assembly of the sleeve 31 with the locking rod 32.

[0055] like Figure 11 and Figure 12 As shown, the sleeve body 312 includes a first top flange 3121 and a second top flange 3122 spaced apart, an opening 301 is disposed between the first top flange 3121 and the second top flange 3122, and a top wall 311 is stacked on top of the first top flange 3121 and the second top flange 3122. The locking sleeve 30 also includes a fastener 33 passing through the first top flange 3121 and the top wall 311. By providing the first top flange 3121 and the second top flange 3122 on the sleeve body 312, the sleeve body 312 and the top wall 311 can have overlapping surfaces during installation, allowing the fastener 33 to fixably connect the sleeve body 312 and the top wall 311.

[0056] Specifically, the top wall 311 has a third connecting hole 3111 and a fourth connecting hole 3112 at its two ends, the first top flange 3121 has a first connecting hole 31211, and the second top flange 3122 has a second connecting hole 31221. The first connecting hole 31211 corresponds to the third connecting hole 3111, and the second connecting hole 31221 corresponds to the fourth connecting hole 3112. Multiple first connecting holes 31211 and second connecting holes 31221 can be provided, and correspondingly, multiple third connecting holes 3111 and fourth connecting holes 3112 can also be provided.

[0057] like Figure 11As shown, a sliding fit structure 34 is provided between the top wall 311 and the first top flange 3121 and / or the second top flange 3122. This arrangement facilitates the assembly of the top wall 311 and the sleeve body 312, quickly aligning the first connecting hole 31211 with the third connecting hole 3111 and the second connecting hole 31221 with the fourth connecting hole 3112, thereby facilitating the positioning and installation of the fastener 33.

[0058] Specifically, in this embodiment, such as Figure 11 As shown, the sliding fit structure 34 includes guide protrusions provided on the first top flange 3121 and the second top flange 3122. Correspondingly, guide grooves are provided at both ends of the top wall 311, and the guide protrusions are inserted into the guide grooves. In an embodiment not shown in the figure, guide grooves may be provided on the first top flange and / or the second top flange, and correspondingly, guide protrusions are provided at both ends of the top wall.

[0059] Specifically, the assembly steps for connecting rod 3 are as follows:

[0060] First, the connecting screw 321 is inserted into the top wall 311, and then the abutment 323 is installed at the end of the connecting screw 321 (wherein, the connecting screw 321 and the abutment 323 are threaded together).

[0061] Then, the assembled top wall 311 and locking rod 32 are installed onto the rod body 20. Specifically, the abutment head 323 passes through the first guide groove 241 and the second guide groove 231 so that the abutment head 323 is located below the first transverse partition 23. The locking rod 32 is controlled to move along the axial direction of the rod body 20 so that the abutment head 323 moves to the bottom of the second groove section 2312, thereby achieving the anti-reverse engagement between the locking rod 32 and the rod body 20 and preventing the top wall 311 and the locking rod 32 from separating from the rod body 20.

[0062] Then, the sleeve body 312 of the locking sleeve 30 is sleeved on the rod 20 and slid to the position aligned with the top wall 311. Then, the top wall 311 and the sleeve body 312 are fixedly connected using fasteners 33.

[0063] like Figure 13 As shown, this application also provides an LED display screen, which includes a support frame and an LED display cabinet 1, wherein the support frame is the aforementioned support frame. The aforementioned support frame effectively solves the problem that support frames in related technologies cannot meet the requirements for quick assembly and disassembly, and the LED display screen with the aforementioned support frame also has the aforementioned advantages.

[0064] Specifically, the assembly steps of the LED display screen are as follows: Adjust the locking sleeve 30 to avoid the connecting plate 10, so that the first positioning part 11 of the connecting plate 10 cooperates with the second positioning part 21 on the rod 20. Then move the locking sleeve 30 to the end of the rod 20 and operate the locking sleeve 30 to lock it, thereby assembling the support base 2 and the connecting rod 3. Finally, place the LED display box 1 on the support frame and fix it.

[0065] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0066] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0067] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A support frame for supporting an LED display cabinet (1) below, characterized in that, The support frame includes multiple support bases (2) and multiple connecting rods (3). The multiple support bases (2) are arranged in an array and used to support the corners of the LED display cabinet (1). The connecting rods (3) connect two adjacent support bases (2). A connecting plate (10) is provided on the side of the support base (2), and a first positioning member (11) is provided on the connecting plate (10). The connecting rod (3) includes a rod body (20) and a locking sleeve (30) disposed on the rod body (20). The rod body (20) is provided with a second positioning element (21) that can cooperate with the first positioning element (11) to restrict the separation of the rod body (20) and the connecting plate (10) along the first direction (a). The locking sleeve (30) includes a sleeve (31) and a locking top rod (32). The locking sleeve (30) has an assembled state and a locked state. When the locking sleeve (30) is in the assembled state, the locking sleeve (30) is movable along the axial direction of the rod body (20). When the locking sleeve (30) is in the locked state, the sleeve (31) is sleeved outside the rod (20) and the connecting plate (10), and the locking top rod (32) locks the sleeve (31) on the rod (20) to restrict the rod (20) and the connecting plate (10) from separating along the second direction (b) and the third direction (c). The first direction (a) is the axial direction of the rod (20), and the second direction (b) and the third direction (c) are both perpendicular to the first direction (a). The second direction (b) and the third direction (c) are intersecting.

2. The support frame according to claim 1, characterized in that, The end of the rod (20) is provided with a step (22), and the second positioning member (21) is provided at the step (22). When the locking sleeve (30) is in the locked state, the connecting plate (10) extends into the step (22). The first positioning member (11) and the second positioning member (21) cooperate with each other. One of the first positioning member (11) and the second positioning member (21) is a recessed insertion part, and the other of the first positioning member (11) and the second positioning member (21) is a protruding insertion part. The extension direction of the protruding insertion part is set at an angle to the first direction (a).

3. The support frame according to claim 1, characterized in that, The locking rod (32) includes a connecting screw (321) and an operating block (322). The connecting screw (321) passes through the top wall (311) of the sleeve (31), and the operating block (322) is located at the outer end of the connecting screw (321).

4. The support frame according to claim 3, characterized in that, The locking rod (32) further includes an abutment head (323) disposed at the inner end of the connecting screw (321), the abutment head (323) having a convex arc surface (3231) at the end away from the connecting screw (321) for abutting and engaging with the rod body (20).

5. The support frame according to claim 4, characterized in that, The rod (20) has a cavity (201) that extends through the rod in the axial direction. The cavity (201) has a first transverse partition (23). The top plate (24) of the rod (20) has a first guide groove (241) through which the connecting screw (321) passes. The first transverse partition (23) has a second guide groove (231) through which the connecting screw (321) passes. The second guide groove (231) has a first groove segment (2311) and a second groove segment (2312) that are connected. The transverse cross-sectional dimension of the first groove segment (2311) is larger than the transverse cross-sectional dimension of the abutment head (323) so that the abutment head (323) can pass through the first groove segment (2311). In the width direction of the second groove segment (2312), the dimension of the second groove segment (2312) is smaller than the dimension of the abutment head (323) so that the first transverse partition (23) can stop the abutment head (323).

6. The support frame according to claim 5, characterized in that, The cavity (201) is also provided with a second transverse partition (25), and the second transverse partition (25) is provided with a clearance hole (251) corresponding to the first groove section (2311). The locking sleeve (30) also has a storage state. When the locking sleeve (30) is in the storage state, the push head (323) extends into the clearance hole (251) to reduce the size of the locking push rod (32) protruding from the sleeve (31).

7. The support frame according to any one of claims 4 to 5, characterized in that, The sleeve (31) includes a sleeve body (312), the top of which has an opening (301) extending through along the first direction (a), and the top wall (311) is disposed at the opening (301).

8. The support frame according to claim 7, characterized in that, The main body (312) includes a first top flange (3121) and a second top flange (3122) spaced apart. The opening (301) is located between the first top flange (3121) and the second top flange (3122). The top wall (311) is stacked with the first top flange (3121) and the second top flange (3122). The locking sleeve (30) also includes fasteners (33) that pass through the first top flange (3121) and the top wall (311).

9. The support frame according to claim 8, characterized in that, A sliding fit structure (34) is provided between the top wall (311) and the first top flange (3121) and / or the second top flange (3122).

10. An LED display screen, comprising a support frame and an LED display cabinet (1), characterized in that, The support frame is the support frame according to any one of claims 1 to 9.

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