Connecting structure and LED display screen

Abstract

The utility model discloses a connecting structure and an LED display screen, the LED display screen comprises a frame structure, the frame structure comprises a beam body, the connecting structure comprises an adjusting assembly and a lock catch assembly, the lock catch assembly and the adjusting assembly are both installed on the beam body, and the lock catch assembly and the adjusting assembly are used for locking the beam body when the two frame structures are spliced. The lock catch assembly of one frame structure is connected with the adjusting assembly of the other frame structure. Wherein the adjusting assembly comprises a first installation base used for being installed on the beam body and an adjusting piece provided with a first connecting part, the lock catch assembly comprises an operation piece provided with a second connecting part and a second installation base used for being installed on the beam body, and the first connecting part and the second connecting part both face the extending direction of the beam body. The adjusting part is arranged on the frame structures and can be connected under the control of the operating part, and the adjusting part is used for adjusting the arc-shaped angle between the two frame structures.

Description

Technical Field

[0001] The utility model relates to the field of electrical equipment, in particular to a connection structure and an LED display screen. Background Art

[0002] With the widespread application of LED screens in the rental market, conventional LED screens are mainly flat screens. However, the rental market has diversified splicing requirements. Curved screens are needed in some special occasions. For example, in the scenes of security, monitoring, electricity, meteorology, and exhibition hall industries, it is necessary to use the characteristics of the large angle of the human eye and place curved screens and "U-shaped screens" with people as the center to facilitate the acquisition of more picture information and meet the needs of a few people to see more perspectives. The current display screen splicing method can no longer meet the diverse splicing methods of rental performances, which limits the application scope of LED screens. Utility Model Content

[0003] The utility model provides a connection structure and an LED display screen, which have a simple structure and can effectively meet the needs of splicing boxes in an arc-shaped screen.

[0004] According to a first aspect of the utility model, the utility model provides a connection structure for use in an LED display screen, wherein the LED display screen comprises a frame structure, wherein the frame structure comprises a beam body, wherein the connection structure comprises an adjustment component and a locking component, wherein both the locking component and the adjustment component are mounted on the beam body, and are used for connecting the locking component of one of the frame structures to the adjustment component of the other frame structure when two of the frame structures are spliced;

[0005] Among them, the adjustment component includes a first mounting seat for installation on the beam body and an adjustment member having a first connecting part, the locking assembly includes an operating member having a second connecting part and a second mounting seat for installation on the beam body, the first connecting part and the second connecting part are both facing the extension direction of the beam body and can be connected under the control of the operating member, and the adjustment member is used to adjust the arc angle between the two frame structures.

[0006] In the connection structure of one embodiment of the utility model, the operating member includes an operating handle and the second connecting portion, the operating handle can be rotatably mounted on the second mounting seat, the second connecting portion is rotatably connected to the operating handle and is not coaxial with the rotation axis of the operating handle relative to the second mounting seat, and the second connecting portion can be connected to or separated from the first connecting portion under the drive of the operating handle.

[0007] In the connection structure of one embodiment of the utility model, the operating member also includes a first torsion spring and a first rotating shaft rotatably connected to the operating handle, second connecting ends are provided at both ends of the first rotating shaft, and the two ends of the second connecting part are respectively fixedly connected to the two second connecting ends, and the first torsion spring is sleeved in the first rotating shaft and abuts against the first rotating shaft and the operating handle.

[0008] In the connection structure of one embodiment of the utility model, the operating member also includes a second torsion spring and an unlocking buckle having a first lock buckle, a second lock buckle is provided on the second mounting seat, the unlocking buckle is rotatably connected to the operating handle, one end of the second torsion spring abuts against the unlocking buckle, and one end of the second torsion spring abuts against the first rotating shaft, for driving the first lock buckle to connect with the second lock buckle.

[0009] In the connection structure of one embodiment of the utility model, the operating member also includes a second rotating shaft, the unlocking buckle has a pressing end face, the unlocking buckle is rotatably connected to the operating handle via the second rotating shaft, the pressing end face and the first locking buckle are respectively arranged at opposite ends of the second rotating shaft, and the projection of the pressing end face in the height direction covers the projection of the first rotating shaft in the operating handle.

[0010] In a connection structure of an embodiment of the present invention, the second mounting seat has a second limit platform, the operating handle is rotatably mounted on one side of the second limit platform and can form a locked state with the unlocking buckle under the restriction of the second limit platform.

[0011] In the connection structure of one embodiment of the utility model, the adjustment member includes an adjustment handle, a limit block and an adjustment block, the adjustment block is movably installed between the limit block and the first mounting seat, the first connecting part is arranged on the side of the adjustment block, and the adjustment handle is passed through the limit block, the adjustment block and the first mounting seat for adjusting the relative angle between the first connecting part and the first mounting seat.

[0012] In the connection structure of one embodiment of the utility model, the adjustment block is provided with an adjustment hole and a toothed protrusion, the toothed protrusion is arranged on both sides of the adjustment hole, the adjustment handle has a toothed groove, the toothed protrusion is engaged with the toothed groove and can be separated from each other under the drive of the adjustment handle.

[0013] In the connection structure of one embodiment of the utility model, the adjustment handle includes a handle body, a handle shaft and an elastic member, the handle shaft is provided with a pressure block having a toothed groove, the first mounting seat is provided with an adjustment shaft hole, the handle shaft is passed through the limit block, the adjustment hole and the adjustment shaft hole, one end of the elastic member is abutted against the handle shaft, and the other end of the elastic member is abutted against the first mounting seat, and the pressure block is pressed on the side of the limit block facing away from the first mounting seat.

[0014] According to a second aspect of the utility model, the utility model also provides an LED display screen, comprising a display module, a frame structure and a central control structure, wherein the frame structure comprises a beam body and a corner block, the beam body comprises a plurality of horizontal beams and a plurality of vertical beams, each of the horizontal beams and the vertical beams are connected together through the corner block, the central control structure is connected to the middle between two oppositely arranged horizontal beams / or vertical beams, the display module is mounted on the frame structure and electrically connected to the central control structure;

[0015] Among them, the LED display screen also includes the above-mentioned connecting structure, which is arranged on the horizontal beam and / or the vertical beam, and is used for connecting the locking component of one of the frame structures with the adjusting component of the other frame structure when the two frame structures are spliced.

[0016] The technical solution provided by the embodiment of the present application may include the following beneficial effects: The present application designs a connection structure and an LED display screen, including a locking assembly and an adjusting assembly, wherein when two frame structures are spliced, the locking assembly of one frame structure is connected to the adjusting assembly of another frame structure to complete the connection between two adjacent frame structures. The adjusting assembly includes a first mounting seat for mounting on the beam body and an adjusting member having a first connecting portion, the locking assembly includes an operating member having a second connecting portion and a second mounting seat for mounting on the beam body, the first connecting portion and the second connecting portion are both oriented in the extension direction of the beam body, so that the operator can clearly observe the connection between the first connecting portion and the second connecting portion during the splicing process, and the width space of the beam body is not occupied, the locking assembly and the adjusting assembly can be made to be about the same size as the width of the beam body, and there is no need to worry about the first connecting portion or the second connecting portion protruding from the frame structure after connection, affecting the overall aesthetics of the LED display screen, etc.; at the same time, the splicing process is simple and easy to operate, does not require the use of any tools, and is highly efficient.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a framework structure provided by an embodiment of the present application;

[0020] Figure 2 yes Figure 1 A schematic diagram of the structure in which the locking assembly is installed behind the beam body;

[0021] Figure 3 yes Figure 1 A schematic diagram of the structure of the lock assembly;

[0022] Figure 4 yes Figure 1 A cross-sectional schematic diagram of a locking assembly in FIG.

[0023] Figure 5 yes Figure 1 An exploded schematic diagram of the lock assembly in FIG.

[0024] Figure 6 yes Figure 1 A cross-sectional diagram showing that the adjusting assembly is installed behind the beam body;

[0025] Figure 7 yes Figure 1 A schematic diagram of the structure of the regulating component in FIG.

[0026] Figure 8 yes Figure 1 A schematic diagram of the structure of the regulating component at another angle;

[0027] Fig. 9 yes Figure 1 Schematic diagram of the exploded view of the regulation components in . DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should also be understood that the terms used in this utility model specification are only for describing specific realities. In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0031] like Figures 1 to 9 As shown, according to the first aspect of the present application, the present application provides a connection structure 100, which is used in an LED display screen, and the LED display screen includes a frame structure 200, and the frame structure 200 includes a beam body 201. Among them, the connection structure 100 includes an adjustment component 10 and a locking component 20, and the locking component 20 and the adjustment component 10 are both installed on the beam body 201, and are used for when two frame structures 200 are spliced, the locking component 20 of one frame structure 200 is connected with the adjustment component 10 of another frame structure 200, so that the two frame structures 200 can be stably spliced ​​together.

[0032] In this embodiment, the adjustment component 10 includes a first mounting seat 11 for mounting on the beam body 201 and an adjustment member having a first connection portion 121, the locking component 20 includes an operating member having a second connection portion 22 and a second mounting seat 21 for mounting on the beam body 201, the first connection portion 121 and the second connection portion 22 are both oriented toward the extension direction of the beam body 201, and can be connected under the control of the operating member, and the adjustment member is used to adjust the arc angle between the two frame structures 20 to achieve angle adjustment after the two frame structures 200 are spliced. For example, a human-centered arc-shaped screen, or a U-shaped LED display screen, etc., can not only adjust the angle formed by the two frame structures 200 through the adjustment component 10, but also the splicing is convenient and fast, the effect is good, and it has good practicality.

[0033] Exemplarily, the beam body 201 has a fixing hole 2011 for installing the connection structure 100, the fixing hole 2011 is in an elongated strip shape, the first mounting seat 11 is fixed on one side of the fixing hole 2011 and is located on one side of the fixing hole 2011, the first connecting portion 121 and the first mounting seat 11 are arranged in parallel in the fixing hole 2011 along the length direction of the beam body 201, that is, the first connecting portion 121 is located on the other side of the fixing hole 2011. Similarly, the second mounting seat 21 is fixed on one side of the fixing hole 2011 and is located on one side of the fixing hole 2011, the second connecting portion 22 is located on the other side of the fixing hole 2011, and the position of the second connecting portion 22 corresponds to the position of the first connecting portion 121, so that the second connecting portion 22 can be connected to the first connecting portion 121 under the control of the operating member, thereby completing the splicing of the two frame structures 200.

[0034] After adopting the above technical solution, since the first connection part 121 and the second connection part 22 are both arranged toward the extension direction of the beam body 201, it is not only convenient to connect the adjustment component 10 with the locking component 20, but also convenient to observe the situation of the first connection part 121 and the second connection part 22 when they are connected; at the same time, it is also convenient to adjust the angle of the adjustment member so that the angle of the two frame structures 200 after splicing can be adjusted. In addition, the width space occupied by the adjustment component 10 and the locking component 20 can be reduced, that is, the locking component and the adjustment component can be made to be about the same size as the width of the beam body, and there is no need to worry about the first connection part or the second connection part protruding from the frame structure after connection, affecting the overall aesthetics of the LED display, etc. The splicing process is simple and easy to operate, does not require the use of any tools, and is highly efficient.

[0035] In an optional embodiment, the operating member includes an operating handle 23 and a second connecting portion 22, the operating handle 23 can be rotatably mounted on the second mounting seat 21, the second connecting portion 22 is rotatably connected to the operating handle 23, and the rotation axis of the second connecting portion 22 and the operating handle 23 is not coaxial with the rotation axis of the operating handle 23 relative to the second mounting seat 21, so that the second connecting portion 22 can be connected to or separated from the first connecting portion 121 under the drive of the operating handle 23.

[0036] In an optional embodiment, the operating member also includes a first torsion spring 26 and a first rotating shaft 25 rotatably connected to the operating handle 23, second connecting ends are provided at both ends of the first rotating shaft 25, and both ends of the second connecting part 22 are respectively fixedly connected to the two second connecting ends. The first torsion spring 26 is sleeved in the first rotating shaft 25 and abuts against the first rotating shaft 25 and the operating handle 23, so that the second connecting part 22 can be connected to the first connecting part 121 under the elastic force of the first torsion spring 26.

[0037] Exemplarily, the first torsion spring 26 has a first end and a second end relative to each other, and a contact groove is formed by bending between the first end and the second end. The contact groove is fixed to the middle part of the first rotating shaft 25 by screws, and the first end and the second end are respectively connected to the operating handle 23, that is, the first torsion spring 26 always forces the first rotating shaft 25 to drive the second connecting part 22 to rotate toward the first connecting part 121 with an elastic force. When it is necessary to release the direct connection between the second connecting part 22 and the first connecting part 121, it is necessary to drive the first rotating shaft 25 through the operating handle 23 to drive the second connecting part 22 to rotate toward the side away from the first connecting part 121.

[0038] In an optional embodiment, the operating member further includes a second torsion spring 27 and an unlocking buckle 24 having a first lock buckle 241. The second mounting seat 21 is provided with a second lock buckle 211. The unlocking buckle 24 is rotatably connected to the operating handle 23. One end of the second torsion spring 27 abuts against the unlocking buckle 24, and the other end of the second torsion spring 27 abuts against the first rotating shaft 25, which is used to drive the first lock buckle 241 to connect with the second lock buckle 211. When it is necessary to release the connection between the first lock buckle 241 and the second lock buckle 211, it is necessary to apply force to the unlocking buckle 24 to rotate the first lock buckle 241 in a direction away from the second lock buckle 211.

[0039] In an optional embodiment, the operating member also includes a second rotating shaft, the unlocking buckle has a pressing end face 242, the unlocking buckle 24 is rotatably connected to the operating handle 23 via the second rotating shaft, the pressing end face 242 and the first lock buckle 241 are respectively arranged at the opposite ends of the second rotating shaft, and the projection of the pressing end face 242 in the height direction covers the projection of the first rotating shaft 25 in the operating handle 23, which can not only improve the overall aesthetics of the lock assembly 20 and avoid the first rotating shaft 25 and the first torsion spring 26 sleeved in the first rotating shaft 25 from being exposed; but also facilitate the application of a torque to the pressing end face 242 to make the first lock buckle 241 rotate in a direction away from the second lock buckle 211.

[0040] In an optional embodiment, the second mounting seat 21 has a second limit platform 212, and the operating handle 23 is rotatably installed on one side of the second limit platform 212 and can form a locked state with the unlocking buckle 24 under the restriction of the second limit platform 212. Only by pressing the end face 242 to apply a rotational torque to the first lock buckle 241 in a direction away from the second lock buckle 211 can the clamping relationship between the operating handle 23 and the second mounting seat 21 be released, so that the operating handle 23 can be operated, and then the second connection part 22 can be controlled to separate from the first connection part 121.

[0041] In an optional embodiment, the adjustment member includes an adjustment handle 14, a limit block 13 and an adjustment block 12, the adjustment block 12 is movably installed between the limit block 13 and the first mounting seat 11, the first connecting portion 121 is arranged on the side of the adjustment block 12, and the adjustment handle 14 is penetrated through the limit block 13, the adjustment block 12 and the first mounting seat 11, and is used to adjust the relative angle between the first connecting portion 121 and the first mounting seat 11, thereby adjusting the angle of the two frame structures 200 after splicing.

[0042] In an optional embodiment, the adjustment block 12 is provided with an adjustment hole 122 and a toothed protrusion 123, the toothed protrusion 123 is arranged on both sides of the adjustment hole 122, the adjustment handle 14 has a toothed groove, and the toothed protrusion 123 is engaged with the toothed groove, which is used to limit the rotation of the adjustment block 12 relative to the first mounting seat 11. The toothed protrusion 123 and the toothed groove can be separated from each other under the drive of the adjustment handle 14, so that the rotation relationship of the adjustment block 12 relative to the first mounting seat 11 can be released, and then the relative angle between the first connecting portion 121 and the first mounting seat 11 can be adjusted.

[0043] In an optional embodiment, the adjustment handle 14 includes a handle body 142, a handle shaft and an elastic member, the handle shaft includes a connecting shaft 143 and a pressure block 141 with a toothed groove, the first mounting seat 11 is provided with an adjustment shaft hole 111, the limit block 13 is provided with a limit hole 131, the connecting shaft 143 is passed through the limit hole 131, the adjustment hole 122 and the adjustment shaft hole 111, one end of the elastic member abuts against the handle shaft, and the other end of the elastic member abuts against the first mounting seat 11, and the pressure block 141 is pressed on the side of the limit block 13 facing away from the first mounting seat 11, so that the toothed groove always remains engaged with the toothed protrusion 123.

[0044] Exemplarily, the width of the limiting hole 131 matches the width of the pressing block 141 , the connecting shaft 143 has a direction axis, and the shape of the adjusting shaft hole 111 matches the shape of the direction axis.

[0045] In an optional embodiment, a limiting protrusion 125 is provided on the adjustment component 10, and a limiting groove 213 is provided on the locking component 20. The limiting protrusion 125 and the limiting groove 213 are used to play a pre-positioning role when the adjustment component 10 is connected to the locking component 20.

[0046] like Figures 1 to 9As shown, according to the second aspect of the present application, the present application provides an LED display screen, including a display module, a frame structure 200 and a central control structure, the frame structure 200 includes a beam body 201 and a corner block, the beam body 201 includes a plurality of horizontal beams and a plurality of vertical beams, each horizontal beam is connected to the vertical beams through a corner block, the central control structure is connected to the middle part between two relatively arranged horizontal beams / or vertical beams, the display module is mounted on the frame structure 200 and electrically connected to the central control structure.

[0047] Among them, the LED display screen also includes the above-mentioned connecting structure 100, which is arranged on the cross beam and / or the vertical beam, and is used for connecting the locking component 20 of one frame structure 200 with the adjusting component 10 of the other frame structure 200 when two frame structures 200 are spliced.

[0048] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0049] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0050] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A connection structure, used in an LED display screen, wherein the LED display screen comprises a frame structure, wherein the frame structure comprises a beam body, wherein: The connection structure includes an adjustment component and a locking component, and the locking component and the adjustment component are both installed on the beam body, and are used for connecting the locking component of one frame structure with the adjustment component of the other frame structure when the two frame structures are spliced; Among them, the adjustment component includes a first mounting seat for installation on the beam body and an adjustment member having a first connecting part, the locking assembly includes an operating member having a second connecting part and a second mounting seat for installation on the beam body, the first connecting part and the second connecting part are both facing the extension direction of the beam body and can be connected under the control of the operating member, and the adjustment member is used to adjust the arc angle between the two frame structures.

2. The connection structure according to claim 1, characterized in that: The operating member includes an operating handle and the second connecting portion, the operating handle can be rotatably mounted on the second mounting seat, the second connecting portion is rotatably connected to the operating handle and is not coaxial with the rotation axis of the operating handle relative to the second mounting seat, and the second connecting portion can be connected to or separated from the first connecting portion under the drive of the operating handle.

3. The connection structure according to claim 2, characterized in that: The operating member also includes a first torsion spring and a first rotating shaft rotatably connected to the operating handle. Second connecting ends are provided at both ends of the first rotating shaft. Both ends of the second connecting portion are fixedly connected to the two second connecting ends respectively. The first torsion spring is sleeved in the first rotating shaft and abuts against the first rotating shaft and the operating handle.

4. The connection structure according to claim 3, characterized in that: The operating member also includes a second torsion spring and an unlocking buckle with a first lock buckle. The second mounting seat is provided with a second lock buckle. The unlocking buckle is rotatably connected to the operating handle. One end of the second torsion spring abuts against the unlocking buckle. One end of the second torsion spring abuts against the first rotating shaft, which is used to drive the first lock buckle to connect with the second lock buckle.

5. The connection structure according to claim 4, characterized in that: The operating member also includes a second rotating shaft, the unlocking buckle has a pressing end face, the unlocking buckle is rotatably connected to the operating handle via the second rotating shaft, the pressing end face and the first locking buckle are respectively arranged at opposite ends of the second rotating shaft, and the projection of the pressing end face in the height direction covers the projection of the first rotating shaft in the operating handle.

6. The connection structure according to claim 4, characterized in that: The second mounting seat has a second limiting platform, and the operating handle is rotatably mounted on one side of the second limiting platform and can form a locked state with the unlocking buckle under the restriction of the second limiting platform.

7. The connection structure according to claim 1, characterized in that: The adjusting member includes an adjusting handle, a limit block and an adjusting block, wherein the adjusting block is movably mounted between the limit block and the first mounting seat, the first connecting portion is arranged on a side of the adjusting block, and the adjusting handle is passed through the limit block, the adjusting block and the first mounting seat for adjusting the relative angle between the first connecting portion and the first mounting seat.

8. The connection structure according to claim 7, characterized in that: The adjusting block is provided with an adjusting hole and a toothed protrusion, the toothed protrusion is arranged on both sides of the adjusting hole, the adjusting handle has a toothed groove, the toothed protrusion is meshed with the toothed groove and can be separated from each other under the drive of the adjusting handle.

9. The connection structure according to claim 8, characterized in that: The adjustment handle includes a handle body, a handle shaft and an elastic member, a pressure block with a toothed groove is provided on the handle shaft, an adjustment shaft hole is provided on the first mounting seat, the handle shaft is passed through the limit block, the adjustment hole and the adjustment shaft hole, one end of the elastic member abuts against the handle shaft, and the other end of the elastic member abuts against the first mounting seat, and the pressure block is pressed on the side of the limit block facing away from the first mounting seat.

10. An LED display screen, characterized in that: The display module comprises a display module, a frame structure and a central control structure, wherein the frame structure comprises a beam body and a corner block, the beam body comprises a plurality of horizontal beams and a plurality of vertical beams, each of the horizontal beams and the vertical beams are connected together through the corner block, the central control structure is connected to the middle between two oppositely arranged horizontal beams / or vertical beams, the display module is mounted on the frame structure and is electrically connected to the central control structure Wherein, the LED display screen also includes a connecting structure as described in any one of claims 1 to 9, and the connecting structure is arranged on the horizontal beam and / or the vertical beam, and is used for connecting the locking component of one of the frame structures with the adjusting component of the other frame structure when the two frame structures are spliced.

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