Seamless Display Screen

Abstract

The present invention discloses a splicing screen, comprising: a plurality of boxes, wherein a groove portion is penetrated through the side wall portion of the box in the side direction, and a first threaded hole penetrated in the front-rear direction is provided on the box, the side wall portions of the boxes are mutually attached, and the groove portions of the boxes are mutually communicated; a connecting member, which connects at least two adjacent boxes on the front side and / or the rear side of the box. When connecting the boxes on the front side of the box, the connecting member is accommodated in the groove portion of the box, and the connecting member is provided with a plurality of penetrated avoidance holes, and the avoidance holes are respectively adapted to the first threaded holes of the adjacent boxes; a plurality of first threaded members, which are respectively threadedly connected through a part of the avoidance holes and a part of the first threaded holes to connect the adjacent boxes through the connecting member; and a plurality of lamp boards, which are respectively detachably mounted to the boxes from the front side of the boxes. The splicing screen of the present invention can change the splicing mode of the splicing screen according to different application scenarios.

Description

Technical Field

[0001] The present invention relates to the technical field of LED display screens, and particularly to a splicing screen. Background Art

[0002] LED display screens have been widely used in outdoor light box advertisements, stage backgrounds, indoor TV walls and other occasions. The sizes of display screens required for different usage occasions are also different. To facilitate the manufacturing and transportation of LED display screens, they are manufactured and transported in units of LED display screen components, and then the boxes of the LED display screens are spliced on-site to form a splicing screen. The known splicing screens are usually pre-designed according to the application scenarios, and the splicing methods are relatively single. It is difficult for the same type of splicing screen to adapt to different application scenarios. Summary of the Invention

[0003] The present invention aims to solve at least one of the problems existing in the known technology to a certain extent. For this purpose, the present invention provides a splicing screen that can change the splicing method according to different application scenarios.

[0004] The splicing screen according to an embodiment of one aspect of the present invention includes: a plurality of boxes, a groove portion is penetrated in the side wall portion of the box along the side direction, a first threaded hole is provided on the box and penetrated along the front-rear direction. When two adjacent boxes are spliced together, the side wall portions of the boxes are mutually attached, and the groove portions of the boxes are mutually communicated; a connecting member, at the front side and / or the rear side of the box, at least connecting two adjacent boxes. When connecting the boxes at the front side of the box, the connecting member is accommodated in the groove portion of the box. The connecting member is provided with a plurality of through avoidance holes. In a state where the side wall portions of the adjacent boxes are mutually attached, the avoidance holes respectively match the first threaded holes of the adjacent boxes; a plurality of first threaded members, respectively passing through a part of the avoidance holes and being threadedly connected to a part of the first threaded holes to connect the adjacent boxes through the connecting member; a plurality of lamp boards, respectively detachably installed on the box from the front side of the box.

[0005] The splicing screen according to one aspect of the present invention has at least the following beneficial effects: Since a groove portion for accommodating the connecting member is penetrated in the side wall portion of the box along the side direction, and a first threaded hole is provided on the box and penetrated along the front-rear direction, it is possible to splice or disassemble the boxes of the splicing screen from the front side or the rear side. Therefore, the splicing method of the splicing screen can be changed according to different application scenarios.

[0006] In some embodiments, the outer periphery of the box is square, and the groove portions are respectively penetrated in the side wall portions around the box.

[0007] In some embodiments, one of the connectors is respectively connected to four spliced boxes.

[0008] In some embodiments, at least one end of each side wall portion in the length direction is respectively penetrated by one of the groove portions.

[0009] In some embodiments, among the mutually attached side wall portions of two adjacent boxes, one of the side wall portions is detachably provided with a positioning member; the other side wall portion is provided with a positioning hole; when two adjacent boxes are attached, the positioning member can be inserted into the positioning hole; in the state where two adjacent boxes are spliced, the positioning member can be detached.

[0010] In some embodiments, the side wall portion of the box provided with the positioning member is provided with a receiving hole for receiving a part of the positioning member and positioning the positioning member, and the positioning member is locked in the receiving hole by a second threaded member.

[0011] In some embodiments, the positioning hole penetrates the side wall portion on one side where it is located, and the positioning member can be detached from the positioning hole.

[0012] In some embodiments, a splicing screen, characterized in that it further comprises: a mounting rack for mounting the box, the mounting rack being provided with mounting holes; a plurality of third threaded members, in the case where the connector connects the box on the rear side of the box, the third threaded members respectively pass through the mounting holes, the avoidance holes of the other part of the connector from the rear side of the box, and are connected to the first threaded holes of the other part of the box, so as to lock the box to the mounting rack.

[0013] In some embodiments, it further comprises: a mounting rack for mounting the box, the mounting rack being provided with mounting holes; a plurality of third threaded members, in the case where the connector connects the box on the front side of the box, the third threaded members respectively pass through the mounting holes and are connected to the first threaded holes of the other part of the box, so as to lock the box to the mounting rack.

[0014] In some embodiments, it further comprises: a mounting rack for mounting the box, the mounting rack being provided with mounting threaded holes; a plurality of third threaded members, the third threaded members pass through the first threaded holes of the other part of the box and are connected to the mounting threaded holes, so as to lock the box to the mounting rack. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of an embodiment of a splicing screen according to one aspect of the present invention.

[0016] Figure 2 is Figure 1 The partial enlarged view of position A in

[0017] Figure 3 is Figure 1 The schematic view of the box body (the second box body) observed from the front side in

[0018] Figure 4 is Figure 1 The schematic view of the connecting piece in

[0019] Figure 5 is Figure 1 The schematic view of the box body (the first box body) observed from the bottom to the top in

[0020] Figure 6 is Figure 1 The sectional schematic view of an embodiment of the positioning structure of the box body in

[0021] Figure 7 is Figure 1 The sectional schematic view of another embodiment of the positioning structure of the box body in

[0022] Figure 8 The sectional schematic view of an embodiment of the installation method (rear installation) of the splicing screen in

[0023] Figure 9 is

[0024] Figure 10 The sectional schematic view of another embodiment of the installation method (rear installation) of the splicing screen in

[0025] Figure 11 is Specific embodiments

[0026] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 thus should not be construed as a limitation of the present invention.

[0028] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0030] Figure 1 is a schematic diagram of an embodiment of a splicing screen, Figure 2 is Figure 1 a partial enlarged view of part A in Figure 3 is Figure 1 a schematic diagram of the box body 101 (the second box body 101b) in Figure 4 is Figure 1 a schematic diagram of the connecting member 102 in Figures 1 to 4 Referring to Figure 1 , Figure 3 in

[0031] In this embodiment, since a groove portion 105 for accommodating the connecting member 102 penetrates through the side wall portion 104 of the cabinet 101 in the lateral direction, and a first threaded hole 106 penetrating through in the front-rear direction is provided on the cabinet 101, it is possible to splice or disassemble the cabinet 101 of the splicing screen from the front side or the rear side. Therefore, the splicing method of the splicing screen can be changed according to different application scenarios.

[0032] Specifically, since a groove portion 105 for accommodating the connecting member 102 penetrates through the side wall portion 104 of the cabinet 101 in the lateral direction, and a first threaded hole 106 penetrating through in the front-rear direction is provided on the cabinet 101, by accommodating a part of the connecting member 102 in the groove portion 105 of one cabinet 101 and making it opposite to the first threaded hole 106 of this cabinet 101, and accommodating the other part of the connecting member 102 in the groove portion 105 of another cabinet 101 and making it opposite to the first threaded hole 106 of this cabinet 101, then the connecting member 102 and the spliced cabinets 101 are locked or disassembled from the front side through the first threaded member 103.

[0033] In addition, in the case of splicing from the rear side, directly on the rear side of the cabinet 101, the connecting member 102 and the spliced cabinets 101 are locked or disassembled through the first threaded member 103. Therefore, the splicing screen of this embodiment can adapt to various installation scenarios such as front installation, rear installation, and wall mounting.

[0034] Specifically, in order to form a first threaded hole 106 with sufficient depth, a boss 109 can be provided at a position of the cabinet 101 close to the groove portion 105 (auxiliary reference Figure 8 ), and a first threaded hole 106 penetrating through the cabinet 101 in the front-rear direction is opened on the boss 109.

[0035] Specifically, the connecting member 102 can include multiple pieces. The connecting member 102 can either connect the cabinets 101 only on the front side of the cabinet 101, or connect the cabinets 101 only on the rear side of the cabinet 101, or connect the cabinets 101 on both the front side and the rear side of the cabinet 101 at the same time.

[0036] Specifically, the lamp board 112 can be selected as a lamp board 112 well-known in the art, and is installed on the cabinet 101 or disassembled from the cabinet 101 through an installation method well-known in the art.

[0037] Continue to refer to Figure 3, in some embodiments, the outer shape of the box body 101 can be selected as a shape well-known to those skilled in the art. For example, the outer periphery of the box body 101 is square (rectangular or square). Specifically, in order to enable the four sides of the box body 101 to be spliced with other adjacent box bodies 101, groove portions 105 are respectively penetrated through the side wall portions 104 on the four sides of the box body 101. By respectively penetrating the groove portions 105 through the side wall portions 104 on the four sides of the box body 101, it is possible to splice different box bodies 101 in the four directions of up, down, left, and right of the box body 101.

[0038] Continue to refer to Figure 3 , Figure 4 , in some embodiments, in order to optimize the splicing structure of the box body 101 and improve the splicing strength of the box body 101, a connecting member 102 connects four mutually spliced box bodies 101 respectively. Specifically, the connecting member 102 can connect each box body 101 at the adjacent corners of the four box bodies 101. For example, at least one groove portion 105 is respectively penetrated through one end of each side wall portion 104 in the length direction. Correspondingly, the connecting member 102 can be set to be approximately rectangular, and each side of the connecting member 102 is respectively accommodated in the groove portion 105 of one of the box bodies 101. The first threaded holes 106 of each box body 101 are respectively arranged beside the groove portions 105 of each box body 101. Thus, it is convenient to adapt each first threaded hole 106 and each avoidance hole 107 of the connecting member 102. In addition, in order to avoid the corners of each box body 101, a through avoidance groove 108 can be opened in the middle of the connecting member 102. In this embodiment, by enabling a connecting member 102 to connect four mutually spliced box bodies 101 respectively, the splicing strength at the corners of each box body 101 can be improved, and further the splicing strength of the box body 101 can be improved, and the splicing structure of the box body 101 can be optimized.

[0039] In addition, it should be noted that when there are only four spliced box bodies 101, each box body 101 can penetrate only one groove portion 105 through one end of its side wall portion 104 in the length direction, and another groove portion 105 is penetrated through the middle position in the length direction of the side wall portion 104. In order to improve the versatility of the box body 101, each box body 101 can also penetrate one groove portion 105 through each end of its side wall portion 104 in the length direction. In addition, in the middle position in the length direction of the side wall portion 104, the groove portion 105 can be penetrated according to needs.

[0040] In some embodiments, in order to further facilitate the installation and disassembly of the connecting member 102 on the front side, the groove portion 105 penetrates the side wall portion 104 along the front direction. By enabling the groove portion 105 to penetrate the side wall portion 104 along the front direction, it is possible to directly install or disassemble the connecting member 102 from the front of the box body 101, without having to draw out the connecting member 102 from one side of the box body 101.

[0041] In some embodiments, in order to prevent interference between the connecting member 102 and the lamp board 112 of the LED display screen installed on the box body 101, the depth of the groove portion 105 in the front-rear direction is greater than the thickness of the connecting member 102. By setting the depth of the groove portion 105 in the front-rear direction to be greater than the thickness of the connecting member 102, it can be ensured that the connecting member 102 is completely accommodated in the groove portion 105, preventing interference between the connecting member 102 and the lamp board 112 of the LED display screen.

[0042] Figure 5 is a schematic view of the box body 101 (the first box body 101a) viewed from below. Refer to Figure 5 and continue to refer to Figure 3 In some embodiments, in order to position the box bodies 101 spliced together, among the mutually abutting side wall portions 104 of two adjacent box bodies 101, one of the side wall portions 104 is detachably provided with a positioning member 110, and the other side wall portion 104 is provided with a positioning hole 111. When two adjacent box bodies 101 are abutted, the positioning member 110 can be inserted into the positioning hole 111. In the state where two adjacent box bodies 101 are spliced, the positioning member 110 can be detached.

[0043] In this embodiment, since a detachable positioning member 110 is provided on one of two adjacent box bodies 101, the positioning member 110 can be machined and then installed on the box body 101 by machining, thereby improving the machining accuracy and installation accuracy of the positioning member 110 and preventing misalignment of the splicing of the box bodies 101. In addition, in the state where adjacent box bodies 101 are spliced together, the positioning member 110 can be directly detached, so the box bodies 101 spliced together can also be easily detached.

[0044] Specifically, for example, when detaching the box body 101 in the up-down direction, since the positioning member 110 has been detached in advance, when detaching the upper box body 101, there is no need to perform an upward lifting action, and the upper box body 101 can be directly detached in the left-right direction or the front-rear direction, which can reduce the difficulty of detachment.

[0045] Furthermore, since the positioning member 110 can be directly detached in the state where adjacent box bodies 101 are spliced together, even when box bodies 101 are spliced in the up-down, left-right, and front-rear directions of a certain box body 101, the box body 101 can be easily detached after detaching the positioning member 110 and the connecting member 102.

[0046] Continue to refer to Figure 3 、 Figure 5, hereinafter, the positioning structure of the box body 101 will be described in more detail. In addition, for the convenience of description, one of the adjacent box bodies 101 is referred to as the "first box body 101a", and the other is referred to as the "second box body 101b". The side wall portion 104 of the first box body 101a is referred to as the "first side wall portion 104a", and the side wall portion 104 of the second box body 101b is referred to as the "second side wall portion 104b". Thus, a positioning member 110 is detachably mounted on the first side wall portion 104a of the first box body 101a. A positioning hole 111 is formed in the second side wall portion 104b of the second box body 101b. When the first box body 101a and the second box body 101b are spliced, the first side wall portion 104a and the second side wall portion 104b are in contact with each other, and the positioning member 110 can be inserted into the positioning hole 111. In a state where the first box body 101a and the second box body 101b are spliced, the positioning member 110 can be detached.

[0047] In some embodiments, in order to reduce the processing difficulty of the positioning member 110 and improve the versatility of the positioning member 110, the portion of the positioning member 110 inserted into the positioning hole 111 is cylindrical. Specifically, the positioning member 110 can use, for example, a cylindrical positioning pin. The positioning member 110 can either select a commercially available positioning pin (i.e., a positioning pin processed in batches by machining, etc.) or be processed according to actual needs.

[0048] In some embodiments, a plurality of positioning holes 111 are included, and are respectively located on both sides of the length direction of the second side wall portion 104b ( Figure 3 in the example, the left - right direction). In order to make it easy for the positioning member 110 and the positioning hole 111 to be aligned, the positioning hole 111 located on one side of the length direction of the second side wall portion 104b is provided as an elongated hole extending along the length direction of the second side wall portion 104b.

[0049] Figure 6 is a cross - sectional schematic view of an embodiment of the positioning structure of the box body 101 (the first box body 101a, the second box body 101b). Refer to Figure 6 , and with reference to Figure 5, in some embodiments, to easily install the positioning member 110 and improve the installation accuracy of the positioning member 110 when installed on the first box body 101a, a side wall portion 104 of the box body 101 on which the positioning member 110 is installed is provided with a receiving hole 113 for receiving a part of the positioning member 110 and positioning the positioning member 110. The positioning member 110 is locked in the receiving hole 113 by a second threaded member 114. Specifically, that is: a first side wall portion 104a of the first box body 101a is provided with a receiving hole 113 for receiving a part of the positioning member 110 and positioning the positioning member 110, and the positioning member 110 is locked in the receiving hole 113 by a second threaded member 114. For example, the receiving hole 113 is opened from a side of the first side wall portion 104a opposite to the second side wall portion 104b. For example, the receiving hole 113 is opened from bottom to top. Thereby, the positioning member 110 can be easily installed and positioned.

[0050] In some embodiments, to easily lock the positioning member 110, the first side wall portion 104a is further provided with a communication hole 115 communicating with the receiving hole 113, and the second threaded member 114 passes through the communication hole 115 and is connected to the positioning member 110. Specifically, the communication hole 115 communicates with the receiving hole 113 in the vertical direction. Correspondingly, one end of the positioning member 110 received in the receiving hole 113 is provided with a second threaded hole 116 extending along the axial direction of the positioning member 110. The second threaded member 114 can be selected, for example, as a screw or a bolt, and is threadedly connected to the second threaded hole 116 of the positioning member 110 through the communication hole 115. Thereby, the positioning member 110 can be easily locked in the receiving hole 113, and the positioning member 110 can be easily disassembled.

[0051] In some embodiments, to more easily disassemble the positioning member 110, the positioning hole 111 penetrates the side wall portion 104, and the positioning member 110 can be disassembled from the positioning hole 111. Specifically, the positioning member 110 is cylindrical, the positioning hole 111 penetrates the second side wall portion 104b, and the positioning member 110 can be disassembled from the positioning hole 111. Since the positioning hole 111 penetrates the second side wall portion 104b, after the second threaded member 114 locking the positioning member 110 is disassembled, the positioning member 110 can be directly pulled out from one end of the second side wall portion 104b. Therefore, the positioning member 110 can be easily disassembled.

[0052] In some embodiments, the first box body 101a is disposed above the second box body 101b. Specifically, for example, when the positioning member 110 is cylindrical and the positioning hole 111 penetrates the second side wall portion 104b, since the first box body 101a provided with the positioning member 110 is disposed above the second box body 101b provided with the positioning hole 111. After the positioning member 110 is disassembled, the positioning member 110 can directly fall off under the action of gravity. Therefore, the positioning member 110 can be easily disassembled.

[0053] Figure 7 It is a cross-sectional schematic view of another embodiment of the positioning structure of the box body 101 (the first box body 101a, the second box body 101b). Refer to Figure 7 , in some embodiments, in order to more easily disassemble the positioning member 110, a through hole 117 penetrating the first side wall portion 104a is provided in the first side wall portion 104a. The through hole 117 accommodates and positions the positioning member 110. One end of the positioning member 110 passes through the through hole 117 and is inserted into the positioning hole 111. In this embodiment, the positioning member 110 can be set in a stepped shape. The small-diameter end 118 of the positioning member 110 passes through the through hole 117 and is inserted into the positioning hole 111, and the large-diameter end 119 of the positioning member 110 can be directly supported on the first side wall portion 104a. Thus, when disassembling the positioning member 110, the positioning member 110 can be directly withdrawn from the through hole 117 to disassemble the positioning member 110.

[0054] Figure 8 It is a cross-sectional schematic view of an embodiment of the installation method (rear installation) of the splicing screen. Figure 9 It is a cross-sectional schematic view of another embodiment of the installation method (rear installation) of the splicing screen. Figure 10 It is a cross-sectional schematic view of an embodiment of the installation method (front installation) of the splicing screen. Figure 11 It is a cross-sectional schematic view of another embodiment of the installation method (front installation) of the splicing screen. The following describes various installation scenarios of the box body 101.

[0055] First, continue to refer to Figure 3 、 Figure 4 , specifically, in order to install the box body 101, at least two first threaded holes 106 are provided at the four corner positions of each box body 101, adjacent to each groove portion 105. A part of them (for example, one) is used for threaded connection with the first threaded member 103, and another part (for example, one) is used for connection with the third threaded member 120 described later or for avoiding the third threaded member 120. Correspondingly, the avoidance holes 107 of each connecting member 102 are more than four (for example, eight). When one connecting member 102 connects four mutually spliced box bodies 101, a part of them (for example, four) avoidance holes 107 are respectively adapted to a part of each (for example, one) first threaded hole 106 of the four box bodies 101, and another part (for example, four) avoidance holes 107 are used for avoiding the third threaded member 120 described later.

[0056] [Rear installation]

[0057] Refer to Figure 8 、 Figure 9 , the following describes the rear installation method of the splicing screen.

[0058] In some embodiments, the tiled screen further includes: a mounting bracket 121 and a plurality of third threaded members 120. Among them, the mounting bracket 121 is used to mount the box body 101, and the mounting bracket 121 is provided with mounting holes 122. When the connecting member 102 connects the box body 101 on the rear side of the box body 101, the third threaded members 120 respectively pass through the mounting holes 122 and the avoidance holes 107 of the other part of the connecting member 102 from the rear side of the box body 101, and are connected to the first threaded holes 106 of the other part of the box body 101 to lock the box body 101 to the mounting bracket 121. Specifically, a sheet metal connecting piece 123 can be installed on the mounting bracket 121, and the mounting holes 122 are opened on the sheet metal connecting piece 123. The third threaded members 120 can be screws or bolts, and the box body 101 is locked from the rear side of the box body 101.

[0059] In addition, in some embodiments, when the connecting member 102 connects the box body 101 on the front side of the box body 101, the third threaded members 120 respectively pass through the mounting holes 122 and are connected to the first threaded holes 106 of the other part of the box body 101 to lock the box body 101 to the mounting bracket 121.

[0060] The installation method of this embodiment can be applied to installation scenarios where, for example, there is sufficient maintenance space on the rear side of the box body 101.

[0061] In addition, it should be noted that in this embodiment, since the sheet metal connecting piece 123 is within the operator's field of vision, when the box bodies 101 are spliced one by one, the box bodies 101 can also be installed on the front side.

[0062] [Front installation]

[0063] Refer to Figure 10 、 Figure 11 In some embodiments, the tiled screen further includes a mounting bracket 121 and a plurality of third threaded members 120. Among them, the mounting bracket 121 is used to mount the box body 101, and the mounting bracket 121 is provided with mounting threaded holes 124. The third threaded members 120 pass through the first threaded holes 106 of the other part of the box body 101 and are connected to the mounting threaded holes 124 to lock the box body 101 to the mounting bracket 121. Specifically, in the case of wall mounting, a back clip can be used as the mounting bracket 121 and directly fixed to the wall. As the mounting threaded holes 124, riveted nuts or the like can be directly provided on the mounting bracket 121. The third threaded members 120 can be screws or bolts, and the box body 101 is locked from the front side of the box body 101. In this embodiment, the thread specification of the third threaded members 120 is smaller than the thread specification of the first threaded holes 106, and since the third threaded members 120 can pass through the first threaded holes 106 and are connected to the mounting threaded holes 124.

[0064] In addition, the mounting bracket 121 can be made of, for example, a metal material. To facilitate the installation of the box body 101, a magnet 125 is installed on the rear side of the box body 101. Specifically, the magnet 125 can be, for example, a magnetic steel column commonly used in the art.

[0065] The installation method of this embodiment can be applied to installation scenarios such as when there is insufficient maintenance space on the rear side of the box body 101 and it is installed on the front side.

[0066] The following describes the disassembly method of the front-mounted splicing screen (the connecting member 102 connects the box body 101 on the front side of the box body 101).

[0067] Step 1: Disassemble the lamp board 112;

[0068] Step 2: Remove the connecting member 102 connecting the box body 101;

[0069] Step 3: Remove the positioning member 110 on the box body 101;

[0070] Step 4: Take out the disassembled box body 101.

[0071] In addition, it should be noted that Step 2 and Step 3 can be interchanged.

[0072] In this embodiment, since there are no other connection structures between the box body 101 and the adjacent box body 101 after the connecting member 102 and the positioning member 110 are removed, it can be easily disassembled.

[0073] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A splicing screen, characterized in that, Including: A plurality of boxes, wherein a groove portion is formed through the side wall portion of the box in the side direction on the front side, and a first threaded hole is formed through the box in the front-rear direction. When two adjacent boxes are spliced together, the side wall portions of the boxes are in contact with each other, and the groove portions of the boxes are in communication with each other; A connecting member, which connects at least two adjacent boxes on the front side and / or the rear side of the box. When the connecting member connects the boxes on the front side of the box, the connecting member is accommodated in the groove portion of the box. The connecting member is provided with a plurality of through avoiding holes. In a state where the side wall portions of adjacent boxes are in contact with each other, the avoiding holes are respectively adapted to the first threaded holes of the adjacent boxes; A plurality of first threaded members, which are respectively threadedly connected to a part of the first threaded holes through a part of the avoiding holes, so as to connect adjacent boxes through the connecting member; A plurality of lamp boards, which are respectively detachably mounted on the box from the front side of the box; Among two adjacent boxes, one box has a first side wall portion, and the other box has a second side wall portion. When the two adjacent boxes are spliced, the first side wall portion and the second side wall portion are in contact with each other; Among the first side wall portion and the second side wall portion, only the first side wall portion is detachably provided with a positioning member. The second side wall portion is provided with a positioning hole. The positioning member is formed in a stepped shape. The small-diameter end of the positioning member passes through the first side wall portion from the side opposite to the second side wall portion of the first side wall portion and is inserted into the positioning hole, and the large-diameter end of the positioning member is supported on the side opposite to the second side wall portion of the first side wall portion; In a state where two adjacent boxes are spliced, the positioning member can be directly withdrawn from the side opposite to the second side wall portion of the first side wall portion; 2. The splicing screen according to claim 1, characterized in that, The outer periphery of the box is square-shaped, and the groove portions are respectively formed through the side wall portions around the box; 3. The splicing screen according to claim 2, wherein One connecting member connects four mutually spliced boxes; 4. The splicing screen according to claim 2 or 3, characterized in that, Each side wall portion is respectively formed through with a groove portion at at least one end in the length direction; 5. The splicing screen according to claim 1, characterized in that, Further including: A mounting frame for mounting the box, and the mounting frame is provided with mounting holes; A plurality of third threaded members. When the connecting member connects the box on the rear side of the box, the third threaded members respectively pass through the mounting holes, another part of the avoiding holes of the connecting member in sequence from the rear side of the box, and are connected to another part of the first threaded holes of the box, so as to lock the box to the mounting frame; 6. The splicing screen according to claim 1, wherein, Further including: A mounting frame for mounting the box, and the mounting frame is provided with mounting holes; A plurality of third threaded members. When the connecting member connects the box on the front side of the box, the third threaded members respectively pass through the mounting holes and are connected to another part of the first threaded holes of the box, so as to lock the box to the mounting frame; 7. The splicing screen according to claim 1, wherein Further including: A mounting frame for mounting the box, and the mounting frame is provided with mounting threaded holes; A plurality of third threaded members, the third threaded members passing through the first threaded holes of the other part of the box body and connecting with the mounting threaded holes to lock the box body to the mounting bracket.

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