Corner protection device and LED display screen

[0049] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

[0050] In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" and other directions or The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the 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, Therefore, it cannot be understood as a restriction 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 indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality of" means two or more than two, unless otherwise specifically defined.

[0051] Hereinafter, some embodiments of the present application will be described in detail with reference to the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0052] The corner protection device of this application belongs to the technical field of LED display screens. LED display screens are becoming more and more high-end. The display products on the market tend to be lighter and thinner, especially in the rental screen market. Disassembly and transportation. In the process of disassembly and transportation, the display is prone to bumps. For LED display products, the four corners of the LED modules are the most easily damaged. The LED modules on the corners of the display are damaged, causing the entire screen to appear dead. Point phenomenon.

[0053] Such as Figure 1 to Figure 23 As shown, according to the first aspect of the present application, the present application provides a corner protection device, which is applied to an LED display screen, wherein the LED display screen is formed by splicing multiple LED display unit boxes, and each LED display The screen unit cabinets all include a display screen cabinet 200 and a display module 300. In this embodiment, the corner protection device includes a base 10, a protection block 20, and a transmission assembly 30. The base 10 is installed on the display box 200. The protection block 20 can be movably installed on the base 10. The transmission assembly 30 includes a first The driving member 31, the second driving member 32, and the driving member 33, wherein the first driving member 31 and the second driving member 32 are both drivingly connected to the driving member 33, and the driving member 33 is drivingly connected to the protection block 20 for driving the protection block 20 extends or retracts the base 10 to prevent the display module 300 on the display box 200 from being damaged during transportation or disassembly.

[0054] Specifically, the protection block 20 has an L-shaped structure, and the first driving member 31 and the second driving member 32 are respectively arranged on two adjacent sides of the base 10. When the two LED display unit boxes are spliced, the first driving After the member 31 and the second driving member 32 abut against the side surface of the base 10, the driving transmission member 33 drives the protection block 20 to extend or retract the base 10, so as to better protect the display module 300 on the display box 200 .

[0055] It should be noted that the shape of the base 10 matches the shape of the corners of the display box 200 to ensure that the protection block 20 can simultaneously protect the two intersecting sides of the display module 300 and the angle formed by the two sides.

[0056] In addition, the transmission mode of the transmission assembly 30 can be threaded transmission, the transmission mode of the transmission assembly 30 can also be cam transmission, or the transmission mode of the transmission assembly 30 can also be lever transmission, and even the transmission mode of the transmission assembly 30 can also be belt transmission. , Chain transmission, gear transmission, etc., are not limited in this application, as long as the purpose is to drive the transmission member 33 through the first driving member 31 and the second driving member 32 to drive the protection block 20 to extend or retract the base 10.

[0057] In an alternative embodiment, the base 10 includes a fixing base 11 and a supporting base 12, wherein the supporting base 12 is mounted on the fixing base 12, and the first driving member 31 and the second driving member 32 are both mounted on the fixing base 11. The transmission member 33 is arranged between the fixed base 11 and the support base 12. After the above technical solution is adopted, the structure of the entire corner protection device can be made more compact, and the transmission member 33 can be easily installed on the base and fixed at the same time. The molding of the base 11 and the supporting base 12 simplifies the molding process of the base 10 and saves a lot of manufacturing costs.

[0058] In an alternative embodiment, an arc-shaped track groove 122 is provided on the base 10, and movable rods 22 are connected to both sides of the protection block 20, wherein the movable rod 22 can be movably installed in the track groove 122 to protect The block 20 can move along the track groove 122 under the drive of the transmission member 33.

[0059] Specifically, the number of track grooves 122 is two, the two track grooves 122 are arranged on the support base 12, and the protection block 20 is provided with movable rods 22 matching the number of track grooves 122. Both movable rods 22 can be movably mounted on In the track groove 122, the stability of the protection block 20 when moving along the track groove 122 is ensured.

[0060] In an optional embodiment, the track groove 122 includes a first track groove 1221 and a second track groove 1222, the first track groove 1221 is arranged along the vertical direction of the base 10, and the second track groove 1222 and the first track groove 1221 It is arranged at an inclined angle so that the protection block 20 has a longitudinal displacement relative to the base 10 and at the same time a lateral displacement relative to the base 10.

[0061] Specifically, the included angle between the first track groove 1221 and the second track groove 1222 is between 100 and 150 degrees, the connection of the first track groove 1221 and the second track groove 1222 adopts a smooth rounded transition, and the first The widths of the track groove 1221 and the second track groove 1222 are adapted to the diameter of the movable rod 22. When the first driving member 31 and the second driving member 32 drive the transmission member 33 to drive the protection block 20 to move, the protection block 20 first moves downward along the first track groove 1221 through the movable rod 22; when the movable rod 22 moves to the first track When the groove 1221 and the second track groove 1222 are connected, the first driving member 31 and the second driving member 32 continue to drive the transmission member 33 to drive the protection block 20 to move. At this time, the movable rod 22 moves along the second track groove 1222, which is equivalent The lateral movement of the base 10 enables the protection block 20 to be retracted into the base 10 to ensure that there will be no gap due to the protrusion of the protection block 20 when the two LED display unit boxes are spliced ​​together.

[0062] In an alternative embodiment, the first driving member 31 includes a first threaded shaft 311, the second driving member 32 includes a second threaded shaft 321, and the transmission member 33 includes a transmission shaft 331, wherein the first threaded shaft 311 and the second threaded shaft 311 The two threaded shafts 321 are both drivingly connected with the transmission shaft 331.

[0063] Specifically, the first driving member 31 is drivingly connected to the transmission shaft 331 through the first threaded shaft 311, and the second driving member 32 is drivingly connected to the driving shaft 331 through the second threaded shaft 321. When the two LED display unit boxes are spliced , The first driving member 31 abuts on the opposite side of the base 10, and the first driving member 31 can move relative to the base 10 through the extrusion of the two LED display unit boxes, so that the first driving member 31 can be The transmission shaft 331 is controlled by the first threaded shaft 311 to drive the protection block 20 to move along the first track groove 1221 and the second track groove 1222; at the same time, the second driving member 32 can move relative to the base 10, thereby enabling the second driving The member 32 can control the transmission shaft 331 through the second threaded shaft 321 to drive the protection block 20 to move along the first track groove 1221 and the second track groove 1222, so that the protection block 20 can be retracted into the base 10, otherwise the two LEDs are released The display unit cabinets are squeezed between the cabinets, that is, when the two LED display unit cabinets are disassembled, the protective block 20 is restored to the extended state, so as to realize the function of protecting the LED display unit cabinets.

[0064] In an alternative embodiment, the transmission member 33 includes a sliding block 332 that is in transmission connection with the protection block 20. In this embodiment, the transmission shaft 331 is provided with helical teeth 3312 and is connected to the first threaded shaft 311 and the second thread. The shaft 321 is matched with a straight tooth 3311, wherein the slider 332 is provided with a spiral tooth groove 3321, and the helical tooth 3312 is in a transmission connection with the spiral tooth groove 3321. When the first threaded shaft 311 and/or the second threaded shaft 321 drive the straight tooth 3311 to drive the helical tooth 3312 to rotate, since the helical tooth 3312 is in transmission connection with the helical tooth groove 3321, the slider 332 will follow the axial direction of the transmission shaft 331 Move, thereby driving the protection block 20 to move up and down in the axial direction of the transmission shaft 331, and the protection block 20 is restricted to move in the first track groove 1221 and the second track groove 1222 by the movable rod 22, that is, the protection block 20 drives on the slider 332 The lower part can move in the first track groove 1221 and the second track groove 1222, so that the protective block 20 can be retracted or extended out of the base 10, which has achieved the effect of protecting the corners of the display box 200.

[0065] In an alternative embodiment, a movable shaft 3322 is provided on the slider 332, wherein a movable groove 21 is provided on the protection block 20, and the movable shaft 3322 is matched with the movable groove 21 so that the transmission shaft 331 can pass through the slider 332. The drive protection block 20 moves along the track groove 122.

[0066] Specifically, when the slider 332 moves, since the movable rod 22 can move in the first track groove 1221 and the second track groove 1222, when the slider 332 moves along the axis of the transmission shaft 331, the movable shaft 3322 can be relatively The movable groove 21 moves left and right to prevent the protection block 20 from being unable to move in the longitudinal and lateral directions on the base 10 due to excessive constraints between the movable shaft 3322, the movable groove 21, the movable rod 22 and the track groove 122.

[0067] In an optional embodiment, a bearing installation hole 125 is provided on the support base 12, wherein the transmission assembly 30 further includes a bearing member 34. In this embodiment, one end of the transmission shaft 331 close to the helical teeth 3312 is rotatably installed in the bearing mounting hole 125 through the bearing member 34, and the other end of the transmission shaft 331 passes through the fixing seat 11 and the first driving member 31 and the second driving member. 32 drive connection.

[0068] Specifically, the transmission shaft 331 is provided with a second bearing portion 3314 between the helical teeth 3312 and the straight teeth 3311, and the transmission shaft 331 is provided with a first bearing portion 3313 at an end away from the straight teeth 3311, and the first bearing portion 3313 passes through the bearing member. 34 can be rotatably installed in the bearing mounting hole 125, and the second bearing portion 3314 can be rotatably installed in the fixed seat 11, which not only facilitates the processing of the transmission shaft 331, but also ensures the stability of the transmission shaft 331 during transmission. , Thereby increasing the service life of the transmission shaft 331.

[0069] In an alternative embodiment, the first driving member 31 further includes a first elastic member 312, and the fixing seat 11 is provided with a first mounting groove 111 for mounting the first threaded shaft 311. When an elastic member 312 is installed in the first installation groove 111, one end of the first elastic member 312 abuts against the first threaded shaft 311, and the other end of the first elastic member 312 abuts on the bottom end of the first installation groove 111 In this way, it can be ensured that the first threaded shaft 311 always protrudes from the fixing seat 11 under the elastic force of the first elastic member 312, thereby ensuring that the protection block 20 can always protect the LED display screen under the action of the first threaded shaft 311 At the corners of the unit cabinet, when two LED display unit cabinets need to be spliced, the protection block 20 is retracted into the base due to the compression of the first threaded shaft 311 to facilitate the splicing of the two LED display unit cabinets.

[0070] And/or, the second driving member 32 further includes a second elastic member 322. The fixing base 11 is provided with a second mounting groove 112 for mounting the second threaded shaft 321. When the second threaded shaft 321 and the second elastic member 322 are both When installed in the first installation groove 112, one end of the second elastic member 322 abuts against the second threaded shaft 321, and the other end of the second elastic member 322 abuts against the bottom end of the second installation groove 112, which can ensure the first The two threaded shafts 321 always protrude from the fixing seat 11 under the elastic force of the second elastic member 322, thereby ensuring that the protection block 20 can always be on the side protecting the LED display unit box under the action of the second threaded shaft 321 When the two LED display screen unit boxes need to be spliced, the protection block 20 is retracted into the base due to the compression of the second threaded shaft 321 to facilitate the splicing of the two LED display screen unit boxes.

[0071] In an optional embodiment, the first installation groove 111 and the second installation groove 112 are arranged at an included angle of 90 degrees, and the first installation groove 111 is arranged below the second installation groove 112. In this embodiment, the distance between the first mounting groove 111 and the second mounting groove 112 is adapted to the diameter of the first threaded shaft 311 or the second threaded shaft 321, so that the two LED display unit boxes When the body is spliced, the first threaded shaft 311 and the second threaded shaft 321 can act on the opposite side of the base 10 at the same time, so that the first threaded shaft 311 can control its corresponding protection block 20 to retract into the base 10. The two threaded shafts 321 can be retracted into the base 10 through the corresponding protection block 20, so that the two LED display screen unit boxes can be successfully spliced.

[0072] In an alternative embodiment, the two sides of the support base 12 and the protection block 20 contacting are arranged at an angle of 90 degrees, and the distance between the two sides of the support base 12 and the protection block 20 and the two opposite sides of the fixing base 11 is equal to The thickness of the protection block 20 is adapted. In this embodiment, the two sides of the support base 12 in contact with the protection block 20 are the first side 123 and the second side 124, respectively, and the angle between the first side 123 and the second side 124 and the protection block 20 are both 90°. To ensure that the protection block 20 can be retracted into the fixing base 11, and to prevent the protrusion of the protection block 20 from affecting the splicing of the two LED display unit boxes.

[0073] In an optional embodiment, the protection block 20 further includes a first extension surface 23 and a second extension surface 24, wherein the first extension surface 23 and the second extension surface 24 are respectively fixed on both sides of the protection block 20, In this embodiment, the transmission member 33 is drivingly connected with the first extension surface 23 and the second extension surface 24.

[0074] Specifically, the movable groove 21 and the movable rod 22 are both provided on the first extension surface 23 and the second extension surface 24, and the distance between the first extension surface 23 and the second extension surface 24 is the same as the two opposite sides of the support base 12 The distances are matched, so that the protection block 20 can be driven by the movable shaft 3322, and the protection block 20 moves along the track groove 122 under the action of the movable rod 22. After the above technical solution is adopted, it can not only ensure that there is enough on the protection block 20 The location of the movable slot 21 and the installation of the movable rod 22 can also ensure that the protection block 20 can move more stably on the support base 12.

[0075] In an alternative embodiment, a receiving groove 121 is provided in the middle of the support base 12, wherein one end of the transmission member 33 is rotatably mounted on the fixing base 11, and the other end of the transmission member 33 is rotatably mounted on the receiving groove 121. bottom.

[0076] Specifically, the fixing seat 11 is provided with a first column 114 and a second column 115, wherein a transmission member mounting hole 113 and a supporting seat fixing portion 116 are provided between the first column 114 and the second column 115, The support base 12 is provided with a support base mounting portion 126, the support base 12 is mounted on the support base fixing portion 116 through the support base mounting portion 126, one end of the transmission member 33 is rotatably mounted in the transmission member mounting hole 113, and the transmission member 33 The other end is rotatably installed in the bearing installation hole 125 through the bearing member 34.

[0077] When two LED display unit cabinets are spliced, the display cabinets 200 on the two LED display unit cabinets are the first display cabinet 201 and the second display cabinet 202, respectively. The first display cabinet The corner protection device 100 is installed on the body 201 and the second display box 202. When the first display box 201 is close to the second display box 202, the first drive on the first display box 201 The member 31 is pressed against the base on the second display box 202, and the second driving member 32 on the second display box 202 is pressed against the base on the first display box 201, so that the first driving member 31 It can drive the protection block 20 on the first display box 201 to retract into the base, and the second drive member 32 can drive the protection block 20 on the second display box 202 to retract into the base, so that the first display box The body 201 can be tightly attached to the side wall of the second display screen box 202 to complete the splicing of the LED display screen unit boxes.

[0078] When the two LED display unit boxes are unspliced, the first display box 201 slowly moves away from the second display box 202, and the base on the second display box 202 is released from the first display box 201 The first driving member 31 on the upper side is squeezed, and the first driving member 31 is reset under the action of the first elastic member 312, thereby driving the protection block 20 to extend out of the base, and protect the display module on the first display box 201 Corner effect. The base on the first display box 201 releases the squeezing of the second driving member 32 on the second display box 202, and the second driving member 32 is reset under the action of the second elastic member 322, thereby driving the protection The block 20 extends out of the base to protect the corners of the display module on the second display box 202.

[0079] It should be noted that because the slider 332 is provided with a spiral tooth groove 3321, and the transmission shaft 331 is provided with a spiral tooth 3312, and the spiral tooth 3312 is in transmission connection with the spiral tooth groove 3321, the protection block 20 can only be extended or retracted. It is controlled by the transmission shaft 331, and the protection block 20 cannot control the rotation of the transmission shaft 331, so that the protection block 20 protects the corners of the LED display unit box more reliable and safe.

[0080] According to the second aspect of the present application, the present application also provides an LED display screen, including an LED display screen unit box and the aforementioned corner protection device 100, wherein the corner protection device 100 is installed in the LED display unit box body The corners.

[0081] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connect, or connect in one piece. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, and it can be a communication between two elements or an interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood according to specific circumstances.

[0082] In this application, unless expressly stipulated and defined otherwise, the "above" or "below" of the first feature of the second feature may include the first and second features in direct contact, or may include the first and second features Not in direct contact but through other features between them. Moreover, "above", "above" and "above" the second feature of the first feature include the first feature being directly above and obliquely above the second feature, or it simply means that the level of the first feature is higher than the second feature. The "below", "below", and "below" of the first feature of the second feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.

[0083] The above disclosure 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 components and settings of specific examples are described above. Of course, they are only examples and are not intended to limit the application. In addition, the present application may repeat reference numbers and/or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and/or settings discussed. In addition, this application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and/or the use of other materials.

[0084] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples" etc. means to combine the embodiments The specific features, structures, materials or characteristics described by the examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in an appropriate manner in any one or more embodiments or examples.

[0085] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and modifications can be made to these embodiments without departing from the principle and purpose of the present application. The scope of the application is defined by the claims and their equivalents.