Display screen, display screen unit and fixing device thereof

Abstract

The utility model provides a display screen, a display screen unit and a fixing device of the display screen unit. The fixing device is used for splicing and fixing display screen unit box bodies, and square tubes are arranged at the splicing position of every two adjacent box bodies and the edges of the box bodies. The fixing device comprises a base, a fixing piece and a connecting plate. The base is used for being fixedly connected with a box body and located at the vertex angle of the display screen unit box body. The surface of the base is used for bearing a square tube. The fixing piece is movably arranged on the base. The fixing piece is provided with a fixing hole for the fastening piece to penetrate through. The connecting plate is arranged on the side, away from the base, of the square tube, and a through hole allowing the fastener to penetrate through is formed in the connecting plate. Due to the fact that the fixing piece can move relative to the base so as to be close to or away from the square tube, the relative distance between the fixing piece and the square tube can be adjusted, the base can bear the square tubes with different widths, and the square tubes can be locked and fixed to the base through cooperation of the fixing piece, the connecting plate and the fastening piece. Therefore, the fixing device can adapt to and fix square tubes with various widths.

Description

TECHNICAL FIELD

[0001] The utility model relates to display screen technical field, especially display screen, display screen unit and its fixing device. BACKGROUND

[0002] LED (Light Emitting Diode, light emitting diode) display screen sells all over the world, and the application environment place is also diversified. In some application scenes, multiple display screens need to be spliced to expand the display surface of the display screen.

[0003] At present, the connection of the adjacent two display screens is often realized through the fixing device arranged at the corner of the display screen box and the square tube cooperation. However, for special application scenes such as outdoor fixed display screen, the safety of the connection structure strength of the back of the display screen has higher requirements. Therefore, different widths of square tubes are often selected according to needs to improve the connection strength of multiple display screens.

[0004] However, for square tubes of different widths, multiple sets of fixing devices need to be opened and set, the fixing holes of each set of fixing devices are located at different positions, and each set of fixing devices is adapted to fix a square tube of a certain width. This method is not universal and increases the mold opening cost. INVENTION CONTENTS

[0005] The utility model aims at providing a display screen, display screen unit and its fixing device, wherein the fixing device can be adapted to fix multiple square tubes of different widths, and has high universality.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] According to one aspect of the present application, the present application provides a fixing device for splicing and fixing between display screen unit boxes, the splicing place of the adjacent two boxes and the edge of the box are provided with square tubes, and the fixing device comprises:

[0008] a base for connecting and fixing with the box, and the base is located at the top corner of the display screen unit box; the surface of the base is used for bearing the square tube;

[0009] a fixing part movably arranged on the base, the fixing part can be close to or away from the square tube, so that the relative distance between the fixing part and the square tube is adjustable; the fixing part is provided with a fixing hole for the fastener to pass through;

[0010] a connecting plate arranged on the side of the square tube away from the base, the connecting plate is provided with a through hole for the fastener to pass through, so that the connecting plate is fixed on the fixing part and used for locking the square tube on the base.

[0011] In some embodiments, the base is provided with a sliding groove, and the fixing member is at least partially accommodated in the sliding groove and is in sliding cooperation with the base, and the fixing member is movable along the sliding groove.

[0012] In some embodiments, the fixing member comprises a fixing portion and a moving portion arranged on the side of the fixing portion, the fixing portion protrudes out of the surface of the base, and the fixing portion is used for abutting against the side surface of the square tube;

[0013] The base comprises a guide body, and the guide body is provided with a sliding groove with one open side, and the opening direction of the sliding groove is parallel to the surface of the base; the moving portion extends into the sliding groove, and the moving portion is movable in the sliding groove.

[0014] In some embodiments, the base is provided with a through groove in communication with the sliding groove; the length direction of the through groove is consistent with the length direction of the sliding groove; and the fixing member is provided with an opening hole;

[0015] The fixing device further comprises a positioning member, and the positioning member is arranged in the through groove and the opening hole, so that the fixing member is positioned and fixed on the base.

[0016] In some embodiments, the display screen unit box comprises four edge beams; two adjacent edge beams are connected and fixed by a base, so that the four edge beams form a square frame;

[0017] Two adjacent side surfaces of the base are connected and fixed with two adjacent edge beams one by one.

[0018] The surface of the base is flush with the edge beam.

[0019] In some embodiments, the base comprises a guide body and two connecting portions, the guide body is provided with a sliding groove for sliding cooperation with the fixing member; two adjacent side surfaces of the guide body are respectively fixed with a connecting portion, and two connecting portions are arranged one by one with two adjacent edge beams, and each connecting portion is attached to the inner side surface of the corresponding edge beam.

[0020] Each connecting portion is provided with a connecting hole, and the edge beam is provided with a through hole, and the connecting hole and the through hole can be communicated to allow a connecting member to pass through, so that the connecting portion and the edge beam are connected and fixed.

[0021] In some embodiments, the base further comprises two abutting portions, and each abutting portion is arranged at the adjacent end portion of the connecting portion, the abutting portion protrudes out of the connecting portion in a direction away from the guide body, and the abutting portion is used for abutting against the end portion of the edge beam.

[0022] The base further comprises a body connected between the two abutting parts, and two adjacent side faces of the body are flush with the outer side of the corresponding side beam.

[0023] In some embodiments, the base is provided with positioning holes and / or positioning columns; the axis of the positioning holes is parallel to the surface of the base; the positioning columns are parallel to the surface of the base, and the positioning columns protrude outwardly from the box.

[0024] According to another aspect of the present application, the present application further provides a display screen unit comprising a box, a display module and a plurality of fixing devices as claimed in any one of the preceding embodiments, the box is used for fixing the display module, each corner of the box is provided with one fixing device, and two adjacent fixing devices are used for fixing one square tube; the moving directions of the fixing members of the plurality of fixing devices are consistent.

[0025] According to another aspect of the present application, the present application further provides a display screen comprising a plurality of display screen units and at least one square tube, the display screen units are as claimed in the preceding embodiments; the plurality of display screen units are arranged in an array;

[0026] The square tube is arranged at the joint of two adjacent columns of display screen units and the edge of the display screen unit, and the square tube is located on the fixing device of the display screen unit; the square tube is perpendicular to the moving direction of the fixing member.

[0027] According to the above technical solution, the present application has at least the following advantages and positive effects:

[0028] In the present application, the surface of the base can carry the square tube, and the connecting plate arranged on the side of the square tube away from the base is fixed on the fixing member through the fastener, so that the connecting plate can be pressed on the square tube, thereby achieving the locking and fixing of the square tube on the base.

[0029] Furthermore, the fixing member is movably arranged on the base, so that the fixing member can be close to or away from the square tube, thereby achieving the adjustment of the relative distance between the fixing member and the square tube, and the adjustment of the size of the actual contact area of the surface of the base with the square tube, so that the base can carry square tubes of different widths, and the locking and fixing of the square tube can be achieved through the cooperation between the fixing member, the connecting plate and the fastener, thereby achieving the purpose that the fixing device can adapt to fixing square tubes of multiple widths, improving the versatility of the fixing device, reducing the production cost, and being convenient and simple to operate. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic diagram of a display screen in the embodiment.

[0031] Figure 2is a structural schematic view of the display screen unit in the embodiment.

[0032] Figure 3 is Figure 2 is an enlarged structural schematic view of position A in the embodiment.

[0033] Figure 4 is a structural schematic view of one of the fixing devices in the embodiment.

[0034] Figure 5 is Figure 1 is an enlarged structural schematic view of position B in the embodiment.

[0035] Figure 6 is Figure 5 is a partial structural schematic view in the embodiment.

[0036] The reference signs are explained as follows:

[0037] 100, display screen; 110, display screen unit; 120, square tube;

[0038] 1, box body; 11, edge beam; 111, perforation; 12, support beam; 13, reinforcing beam; 2, display module; 3, fixing device; 31, base; 311, guide body; 312, connecting part; 3121, connecting hole; 313, abutting part; 314, body; 3141, bent part; 315, sliding groove; 316, accommodating groove; 317, through groove; 318, weight-reducing hole; 32, fixing part; 321, fixing part; 322, moving part; 323, fixing hole; 324, opening; 33, connecting plate; 331, through hole; 34, fastening part; 35, positioning part; 36, positioning hole; 37, positioning column. DETAILED DESCRIPTION

[0039] The typical embodiments embodying the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can have various changes in the embodiments, and all of them do not deviate from the scope of the present application, and the description and drawings in the essence are used as a description, not to limit the present application.

[0040] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indication of direction or position relationship (such as up, down, left, right, front and back, etc.) is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation. When these elements are in the position shown in the drawings, these descriptions are appropriate. If the position of these elements changes, the indication of these directions also changes accordingly.

[0041] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0042] The specific embodiments of the display screen of the present application are described in detail below with reference to the accompanying drawings.

[0043] Figure 1 The structure diagram of the display screen 100 in the present embodiment is shown.

[0044] Referring to Figure 1 The present embodiment provides a display screen 100, which comprises a plurality of display screen units 110 and at least one square tube 120. The plurality of display screen units 110 are arranged in an array, and the square tube 120 is arranged at the joint of two adjacent columns of display screen units 110 and the edge of the display screen unit 110. The square tube 120 is located at the back of the display screen unit 110, and the square tube 120 is used for supporting each column of display screen units 110.

[0045] The square tube 120 is in a columnar shape, and its length and width can be determined according to actual needs.

[0046] The specific arrangement form of the plurality of display screen units 110 can be determined according to needs, which is not limited herein. The opposite sides of the display screen unit 110 are a display surface and a back surface, respectively. The display surface is used for picture display. In this case, the design of arranging the square tube 120 at the back of the display screen unit 110 can avoid the square tube 120 from shielding the display surface, so as to ensure the display effect of the display screen 100.

[0047] Figure 2 The structure diagram of the display screen unit 110 in the present embodiment is shown.

[0048] Referring to Figure 2 The display screen unit 110 comprises a box body 1, a display module 2, and a plurality of fixing devices 3.

[0049] For the convenience of description, it is defined that the direction towards the display surface is positive, and the direction towards the back surface is negative.

[0050] The box 1 comprises four side beams 11, which form a square frame. The box 1 can further comprise a plurality of support beams 12, which are arranged at intervals between two oppositely arranged side beams 11. The box 1 can further comprise a plurality of reinforcing beams 13, at least one reinforcing beam 13 being connected between two adjacent support beams 12, and at least one reinforcing beam 13 being connected between each side beam 11 and an adjacent support beam 12. The reinforcing beams 13 are perpendicular to the support beams 12.

[0051] The display module 2 is fixed to the box 1. Specifically, opposite sides of the display module 2 are a display surface and a back surface, respectively, the outer periphery of the display module 2 is connected to the four side beams 11, and the back surface of the display module 2 is attached to and connected with the support beams 12 and the reinforcing beams 13, so that the display surface of the display module 2 is completely exposed, ensuring that the display screen is not blocked.

[0052] Figure 3 For Figure 2 An enlarged structural schematic view of A in the middle, Figure 4 An exemplary structure of the fixing device 3.

[0053] Referring to Figures 2 to 4 The fixing device 3 is used for splicing and fixing the boxes 1 and the square tubes 120. In the embodiment, each top corner of the box 1 is provided with a fixing device 3. Specifically, any two side beams 11 are connected and fixed by a fixing device 3.

[0054] In the embodiment, the fixing device 3 comprises a base 31, a fixing member 32, and a connecting plate 33.

[0055] Referring to Figures 2 to 4 The base 31 is used for connecting and fixing the box 1, and the base 31 is located at the top corner of the display screen unit 110 of the box 1. The surface of the base 31 is used for bearing the square tube 120.

[0056] In the embodiment, two adjacent side beams 11 are connected and fixed by a base 31, so that the four side beams 11 form a square frame. Exemplarily, two adjacent sides of the base 31 are connected and fixed with two adjacent side beams 11 one by one.

[0057] The surface (back surface) of the base 31 is also flush with the edge beam 11, so that the surface of the base 31 and the edge beam 11 can jointly bear the square tube 120, thereby increasing the contact area of the display panel unit and the square tube 120. After the square tube 120 is fixed on the base 31, the larger contact area can improve the connection strength of the square tube 120 and the display panel unit 110, reduce the shaking of the spliced part of the display panel unit 110, and ensure the stability of the overall structure of the display screen 100, so that the display screen 100 can adapt to a longer service time or resist external forces such as wind.

[0058] In addition, the front surface of the base 31 is also flush with the edge beam 11, which makes the front surface of the display panel unit 110 more flat and reduces the protruding part, thereby enhancing the overall sense.

[0059] Exemplarily, in the embodiment, the base 31 includes a guide body 311 and two connecting parts 312. The two adjacent sides of the guide body 311 are respectively fixed with a connecting part 312.

[0060] The two connecting parts 312 are arranged one by one corresponding to the two adjacent edge beams 11, and each connecting part 312 is attached to the inner side surface of the corresponding edge beam 11. The front and back surfaces of each connecting part 312 are flush with the corresponding edge beam 11. Each connecting part 312 is provided with a connecting hole 3121, and the edge beam 11 is provided with a through hole 111, and the connecting hole 3121 and the through hole 111 can be communicated to allow a connecting piece to pass through to connect and fix the connecting part 312 and the edge beam 11.

[0061] In the embodiment, the connecting piece can be a bolt, a screw, or the like, and the connecting piece is screw-connected and fixed with the connecting part 312 and the edge beam 11, so that the detachable connection between the connecting part 312 and the edge beam 11 can be realized through the connecting piece, so as to facilitate the quick assembly and disassembly of the connecting part 312 and the edge beam 11, and the operation is convenient and simple.

[0062] The base 31 is also provided with a side-opened sliding groove 315. Specifically, the sliding groove 315 is arranged on the guide body 311. The opening direction of the sliding groove 315 is parallel to the surface of the base 31 for bearing the square tube 120. The extension directions of the sliding grooves 315 on each base 31 of the display panel unit 110 are consistent.

[0063] The number of the sliding grooves 315 can be two, and the two sliding grooves 315 are distributed on the guide body 311 in a spaced manner, and the opening directions of the two sliding grooves 315 are oppositely arranged. Specifically, the back surface of the guide body 311 is provided with an opening to form a receiving groove 316, and the receiving groove 316 is located between the two sliding grooves 315, and the receiving groove 316 and the two sliding grooves 315 are communicated.

[0064] In the embodiment, the opposite sides of the guide body 311 are also provided with lightening holes 318, and the lightening holes 318 on each side of the guide body 311 correspond to a sliding groove 315, so that the opposite sides of the sliding groove 315 are penetrated. The front surface of the guide body 311 is also provided with an opening corresponding to the accommodating groove 316, so that the front and back sides of the accommodating groove 316 are penetrated.

[0065] The guide body 311 is also provided with a through groove 317, and the through groove 317 corresponds to the sliding groove 315. The length direction of the through groove 317 is consistent with the length direction of the sliding groove 315. Specifically, two through grooves 317 are arranged on the guide body 311 in a spaced manner, and the two through grooves 317 are arranged one by one corresponding to the two sliding grooves 315. The two through grooves 317 are arranged on the two sides of the accommodating groove 316, and the axis of the through groove 317 extends in the front and back directions.

[0066] The design of the accommodating groove 316, the lightening hole 318 and the through groove 317 on the guide body 311 can reduce the weight of the guide body 311, thereby reducing the weight of the base 31, and further reducing the weight of the display screen unit 110, so as to achieve the purpose of lightening the display screen unit 110.

[0067] The size of the guide body 311 in the front and back directions is smaller than the size of the connecting portion 312 in the front and back directions, so as to reduce the weight of the base 31, and further reduce the weight of the display screen unit 110, so as to achieve the purpose of lightening the display screen unit 110.

[0068] In the embodiment, the guide body 311 can be in the form of a square block, so as to facilitate the arrangement of the sliding groove 315, the through groove 317, the accommodating groove 316, the lightening hole 318 and the through groove 317 on the guide body 311.

[0069] In the embodiment, the base 31 can also include two abutting portions 313. Specifically, the end portions adjacent to the two connecting portions 312 are respectively provided with an abutting portion 313, and the abutting portion 313 protrudes out of the connecting portion 312 in a direction away from the guide body 311, and the abutting portion 313 is used for abutting the end portion of the edge beam 11. That is, in the embodiment, the abutting portion 313 and the corresponding connecting portion 312 combine to form a stepped structure, and when the connecting portion 312 is attached to the inner side of the edge beam 11, the end portion of the edge beam 11 can also be abutted by the abutting portion 313. The abutting portion 313 and the connecting portion 312 cooperate to abut and limit the edge beam 11 in two directions, and can also increase the contact area between the base 31 and the edge beam 11, so as to improve the connection strength between the base 31 and the edge beam 11, and reduce the risk of loosening or displacement of the fixed edge beam 11. Moreover, the above design also facilitates quick positioning and alignment during installation of the edge beam 11, reduces installation errors, ensures the accuracy of splicing of the cabinet 1, and also reduces the installation time and improves the efficiency.

[0070] The base 31 can further include a body 314 connected between the two abutting portions 313 to connect the two abutting portions 313 into one body, so as to improve the structural strength of the base 31. In addition, the two side surfaces of the body 314 are flush with the outer sides of the corresponding side beams 11, which makes the outer periphery of the display screen unit 110 more flat and avoids unevenness, thereby enhancing the overall sense.

[0071] Specifically, the body 314 is in a bent shape. The body 314 includes two bent portions 3141 connected to each other and forming an included angle therebetween, and the two bent portions 3141 are connected to the two abutting portions 313 one by one. The outer sides of the two bent portions 3141 are flush with the outer sides of the adjacent two side beams 11, respectively.

[0072] In the embodiment, the two connecting portions 312, the two abutting portions 313 and the body 314 are integrally formed, so as to improve the structural strength and stability of the base 31.

[0073] In the embodiment, the fixing member 32 is movably arranged on the base 31, and the fixing member 32 can be close to or away from the square tube 120, so that the relative distance between the fixing member 32 and the square tube 120 is adjustable, and the area of the surface of the base 31 actually contacting the square tube 120 can be adjusted, so that the base 31 can bear square tubes 120 of different widths, thereby achieving the purpose that the fixing device 3 can be adapted to fix square tubes 120 of multiple widths, improving the versatility of the fixing device 3, reducing the production cost, and being convenient and simple to operate.

[0074] The fixing member 32 is at least partially accommodated in the sliding groove 315 and is in sliding cooperation with the base 31, and the fixing member 32 can move along the sliding groove 315. The moving direction of the fixing member 32 is perpendicular to the square tube 120.

[0075] Exemplarily, in the embodiment, the fixing member 32 includes a fixing portion 321 and a moving portion 322. Specifically, the fixing portion 321 is arranged in the accommodation groove 316, and the moving portion 322 is arranged on the side surface of the fixing portion 321, extends into the sliding groove 315, and can move in the sliding groove 315.

[0076] The number of the moving portion 322 can be two, and the two moving portions 322 are arranged on opposite sides of the fixing portion 321 and correspond to the two sliding grooves 315 one by one, and both of the two moving portions 322 can move in the corresponding sliding groove 315, so as to improve the stability of the fixing member 32 during movement and improve the stability of the connection between the fixing member 32 and the base 31.

[0077] In this embodiment, the fixed part 321 can protrude from the surface of the base 31 to abut against the side of the square tube 120 when close to the square tube 120, and limit the square tube 120 from the side to prevent the square tube 120 from shaking, thereby improving the stability of the square tube 120. Alternatively, the fixed part 321 can be flush with the surface of the base 31 to be able to carry the square tube 120 when close to the square tube 120.

[0078] The fixing member 32 is provided with a fixing hole 323 for the fastener 34 to pass through. Specifically, the fixing hole 323 is located on the fixed part 321, and the axis of the fixing hole 323 extends in the positive and negative directions. It should be noted that when the fixed part 321 is flush with the surface of the base 31, the square tube 120 can be placed on the fixed part 321, and the square tube 120 is located outside the fixing hole 323 to avoid shielding the fixing hole 323, so that the fastener 34 can be inserted into the fixing hole 323, and then the fastener 34 fixed in the fixing hole 323 can abut against the square tube 120 from the side.

[0079] The fixing member 32 is also provided with an opening 324. Specifically, the opening 324 is provided on the moving part 322, and the axis of the opening 324 extends in the positive and negative directions. Wherein, after the moving part 322 is inserted into the opening 324, the opening 324 can be communicated with the sliding groove 315, so that the opening 324 is communicated with the through groove 317 arranged on the opposite side of the guide body 311, so that the positioning member 35 can pass through, and the fixing member 32 is positioned and fixed on the base 31, so as to lock the position of the fixing member 32, prevent the fixing member 32 from shaking and moving, affect the abutting and limiting effect of the square tube 120, and further improve the stability of the fixing member 32.

[0080] Wherein, the positioning member 35 can be a bolt, a screw or the like, and the positioning member 35 is screwed with the moving part 322 and / or the guide body 311, so that the positioning member 35 can realize the detachable connection between the moving part 322 and the guide body 311, so as to quickly realize the locking and unlocking of the moving part 322 and the guide body 311, and the operation is convenient and simple. Specifically, the positioning member 35 includes a rod body and a positioning part, the rod body is provided with an external thread, and the positioning part protrudes outwardly along the circumference beyond the outer circumference of the rod body. The inner wall of the opening 324 on the moving part 322 is provided with an inner thread matched with the external thread, and the rod body and the moving part 322 are connected and fixed by screwing the external thread and the inner thread, the end of the rod body away from the positioning part abuts against the wall of the sliding groove 315, and the positioning part can be pressed against the guide body 311, so as to lock the fixing member 32 on the guide body 311.

[0081] Figure 5 For Figure 1 The enlarged structure diagram of B in the middle.

[0082] Reference Figure 1 And Figure 5The connecting plate 33 is arranged on the side of the square tube 120 away from the base 31, and the connecting plate 33 is provided with a through hole 331 for the fastener 34 to pass through, so that the connecting plate 33 is fixed to the fixing member 32 and used to lock the square tube 120 to the base 31.

[0083] Since the surface of the base 31 can bear the square tube 120, and the fixing member 32 is movably arranged on the base 31, the fixing member 32 can be close to or away from the square tube 120, so that the relative distance between the fixing member 32 and the square tube 120 is adjustable, and the fixing member 32 can abut against the side surface of the square tube 120 when close to the square tube 120, or bear the square tube 120 and make the fixing hole 323 located outside the square tube 120, so that the fastener 34 passing through the fixing hole 323 abuts against the side surface of the square tube 120, and the connecting plate 33 arranged on the side of the square tube 120 away from the base 31 is fixed to the fixing member 32 through the fastener 34, so that the connecting plate 33 is pressed against the square tube 120, thereby realizing the locking and fixing of the square tube 120 to the base 31. That is, the base 31, the fixing member 32, the fastener 34 and the connecting member cooperate to limit and fix the square tube 120 in the front, back and side directions, so as to improve the stability of the square tube 120, thereby improving the stability of the overall structure of the display screen 100.

[0084] In this embodiment, the length direction of the through hole 331 is consistent with the length direction of the sliding groove 315, so that the fastener 34 can be located at any position in the through hole 331 to adapt to the position change of the fixing hole 323 on the fixing member 32 relative to the connecting plate 33, and the design improves the versatility of the fixing device 3.

[0085] The length and width dimensions of the connecting plate 33 are determined according to requirements. The number of the through holes 331 on the connecting plate 33 is determined according to the number of the fixing devices 3 at the splicing position of the display screen unit 110 or the number of the fixing devices 3 at the edge. For example, the number of the through holes 331 on the connecting plate 33 can be one, two, three or four. It should be noted that when the number of the through holes 331 on the connecting plate 33 is at least two, the through holes 331 are arranged one by one corresponding to the fixing devices 3.

[0086] In this embodiment, the base 31 is further provided with a positioning hole 36 and / or a positioning column 37. Specifically, the positioning hole 36 is arranged on the body 314, and the axis of the positioning hole 36 is parallel to the surface (back surface) of the base 31. The positioning column 37 is arranged on the body 314, and the positioning column 37 is parallel to the surface of the base 31 and protrudes outward from the box body 1.

[0087] Figure 6 The fixing member 32 is arranged on the base 31, and the fixing member 32 is provided with a fixing hole 323 for the fastener 34 to pass through, so that the fastener 34 is fixed to the fixing member 32 and used to lock the square tube 120 to the base 31. Figure 5 The fixing member 32 is arranged on the base 31, and the fixing member 32 is provided with a fixing hole 323 for the fastener 34 to pass through, so that the fastener 34 is fixed to the fixing member 32 and used to lock the square tube 120 to the base 31.

[0088] ReferenceFigure 2 and Figure 6 Wherein, the base 31 of all the fixing devices 3 of each display screen unit 110 can be provided with only the positioning hole 36, or only the positioning column 37, or both the positioning hole 36 and the positioning column 37, the specific setting is determined according to the needs, as long as the adjacent bases 31 at the splicing position on the two adjacent columns and / or two adjacent rows of display screen units 110 can be positioned and fixed through the insertion and cooperation of the positioning hole 36 and the positioning column 37 when the splicing of multiple display screen units 110 is performed, which is not limited herein.

[0089] Exemplarily, the box body 1 of each display screen unit 110 is provided with a fixing device 3 at each of the four corners. The four fixing devices 3 are two first fixing devices 3 and two second fixing devices 3, respectively. The two first fixing devices 3 are located on the same side, and the two second fixing devices 3 are located on the same side. The base 31 of the first fixing device 3 is provided with a positioning column 37 on the side away from the second fixing device 3, and the base 31 of the second fixing device 3 is provided with a positioning hole 36 on the side away from the first fixing device 3. In the adjacent two display screen units 110, the positioning column 37 of the first fixing device 3 on one of the display screen units 110 is inserted into the positioning hole 36 of the second fixing device 3 on the other display screen unit 110.

[0090] From the above technical solution, the utility model has at least the following advantages and positive effects:

[0091] In the present application, the surface of the base can carry the square tube, and the connecting plate provided on the side of the square tube away from the base is fixed on the fixing member by the fastener. In this way, the connecting plate can be pressed on the square tube, so as to realize the locking and fixing of the square tube on the base.

[0092] In addition, the fixing member is movably arranged on the base, so that the fixing member can be close to or away from the square tube, thereby realizing the adjustable relative distance between the fixing member and the square tube, and realizing the adjustable size of the actual contact area of the surface of the base with the square tube. In this way, the base can carry square tubes of different widths, and the locking and fixing of the square tube can be realized through the cooperation between the fixing member, the connecting plate and the fastener, so as to achieve the purpose that the fixing device can adapt to fixing square tubes of multiple widths, improve the versatility of the fixing device, reduce the production cost, and the operation is convenient and simple.

[0093] While the present application has been described with reference to several exemplary embodiments, it is understood that the words that have been used are words of description and illustration, rather than words of limitation. As mentioned above, the present application is capable of taking many forms of implementation and being practiced in various ways, and the above description is not intended to limit the application in any way, except as required by the appended claims and their equivalents.

Claims

1. A fixing device for splicing and fixing between display screen unit cases, wherein a square tube is provided at the splicing part of two adjacent cases and the edge of the case, characterized in that, The fixing device comprises: a base for connecting and fixing with the cabinet, and the base is located at a top corner of the display screen unit cabinet; a surface of the base is used for bearing the square tube; a fixing member movably arranged on the base, the fixing member being capable of moving close to or away from the square tube so that the relative distance between the fixing member and the square tube is adjustable; the fixing member is provided with a fixing hole for a fastener to pass through; a connecting plate arranged on a side of the square tube away from the base, the connecting plate being provided with a through hole for the fastener to pass through so that the connecting plate is fixed on the fixing member and used for locking the square tube to the base.

2. The fixture of claim 1, wherein The base is provided with a sliding groove, and the fixing member is at least partially accommodated in the sliding groove and is in sliding cooperation with the base, and the fixing member is capable of moving along the sliding groove.

3. The fixture of claim 2, wherein The fixing member comprises a fixing portion and a moving portion arranged on a side of the fixing portion, the fixing portion protruding out of the surface of the base, and the fixing portion being used for abutting against a side surface of the square tube; The base comprises a guide body, the guide body being provided with a sliding groove with an open side, and the opening direction of the sliding groove being parallel to the surface of the base; the moving portion extends into the sliding groove, and the moving portion is capable of moving in the sliding groove.

4. The fixture of claim 2, wherein The base is provided with a through groove communicating with the sliding groove; the length direction of the through groove is consistent with the length direction of the sliding groove; the fixing member is provided with an opening; The fixing device further comprises a positioning member, the positioning member passing through the through groove and the opening so that the fixing member is positioned and fixed on the base.

5. The fixture of claim 1, wherein The display screen unit cabinet comprises four edge beams; two adjacent edge beams are connected and fixed by a base so that the four edge beams form a square frame; Two adjacent side surfaces of the base are connected and fixed with two adjacent edge beams one by one; The surface of the base is flush with the edge beams.

6. The fixture of claim 5, wherein The base comprises a guide body and two connecting portions, the guide body being provided with a sliding groove for sliding cooperation with the fixing member; two adjacent side surfaces of the guide body are respectively fixed with a connecting portion, and two connecting portions are arranged one by one with two adjacent edge beams, and each connecting portion is attached to an inner side surface of the corresponding edge beam; Each connecting portion is provided with a connecting hole, and the edge beam is provided with a through hole, and the connecting hole and the through hole can be communicated so that a connecting member passes through to connect and fix the connecting portion and the edge beam.

7. The fixture of claim 6, wherein The base further comprises two abutting portions, and each abutting portion is arranged on an adjacent end portion of the two connecting portions, and the abutting portion protrudes out of the connecting portion in a direction away from the guide body, and the abutting portion is used for abutting against an end portion of the edge beam; The base further comprises a body connected between the two abutting portions, and two adjacent side surfaces of the body are flush with the outer sides of the corresponding edge beams.

8. The fixture of claim 1, wherein The base is provided with a positioning hole and / or a positioning column; the axis of the positioning hole is parallel to the surface of the base; the positioning column is parallel to the surface of the base, and the positioning column protrudes out of the cabinet.

9. A display screen unit, characterized by The display module comprises a box, a display module and a plurality of fixing devices as claimed in any one of claims 1-8, the box is used for fixing the display module, each corner of the box is provided with a fixing device, and adjacent two fixing devices are used for fixing a square tube; the moving directions of the fixing members of the plurality of fixing devices are consistent.

10. A display screen, characterized by The display module comprises a plurality of display screen units and at least one square tube, the display screen units adopt the display screen unit as claimed in claim 9, and the plurality of display screen units are arranged in an array. Adjacent two columns of the display screen units are arranged with the square tube at the splicing position and the edge of the display screen units, and the square tube is located on the fixing device of the display screen unit; the square tube is perpendicular to the moving direction of the fixing member.

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