A fixing device and a display screen

Abstract

The present invention belongs to the field of display screen technology equipment, and in particular, relates to a fixing device and a display screen. The fixing device is used to fix the display unit, including: a frame structure, including two oppositely arranged cross beams and two oppositely arranged longitudinal beams located between the two cross beams, each cross beam and each longitudinal beam are connected end to end in sequence to form a ring frame for fixing the display unit; and a reinforcement structure, including a reinforcement beam, the two ends of the reinforcement beam are respectively connected to the two cross beams or the two ends of the reinforcement beam are respectively connected to the two longitudinal beams, and at least one reinforcement beam is provided. The frame structure and the reinforcement structure are integrally formed, and each cross beam, each longitudinal beam and each reinforcement beam are hollow structures. The frame structure and the reinforcement structure of the present invention are integrally formed by molding and blowing processes, thereby ensuring the overall structural strength of the fixing device. Each cross beam, each longitudinal beam and each reinforcement beam are hollow structures, thereby reducing the weight of the frame structure and the reinforcement structure.

Description

Technical Field

[0001] The invention belongs to the field of display screen technology equipment, and in particular relates to a fixing device and a display screen. Background Art

[0002] At present, with the continuous development of the LED display industry, the technology is becoming more mature and is widely used in stages, exhibitions, conference rooms, stadiums and other occasions.

[0003] In application, it is generally necessary to assemble multiple display units together to form a whole display screen. The transportation and installation of the display screen consumes a lot of manpower and material resources. In addition, in some specific occasions, there are strict restrictions on the overall weight and strength of the display screen, which requires the product to be light in weight and have sufficient strength.

[0004] The main weight of the display screen is concentrated on the fixture of the display unit. Therefore, the lightweight of the fixture is particularly important. Summary of the invention

[0005] The object of the present invention is to provide a fixing device, aiming to solve the problem of how to fix a display unit and reduce the weight of the fixing device.

[0006] The present invention provides a fixing device for fixing a display unit, the fixing device comprising:

[0007] A frame structure, comprising two oppositely disposed cross beams and two oppositely disposed longitudinal beams located between the two cross beams, wherein each of the cross beams and each of the longitudinal beams are sequentially connected end to end to form an annular frame for fixing the display unit; and

[0008] The reinforcement structure comprises a reinforcement beam, wherein two ends of the reinforcement beam are respectively connected to the two transverse beams or two ends of the reinforcement beam are respectively connected to the two longitudinal beams, and at least one reinforcement beam is provided;

[0009] Wherein, the frame structure and the reinforcement structure are integrally formed, and each of the cross beams, each of the longitudinal beams and each of the reinforcement beams are hollow structures.

[0010] The technical effect of the present invention is that the frame structure and the reinforcement structure are both made of carbon fiber materials and are integrally formed through molding and blowing processes, thereby ensuring the overall structural strength of the fixture. Each cross beam, each longitudinal beam and each reinforcement beam are hollow structures, thereby reducing the weight of the frame structure and the reinforcement structure, making the fixture as a whole lightweight. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a three-dimensional structural diagram of a fixing device provided by an embodiment of the present invention;

[0012] Figure 2 yes Figure 1 An exploded view of the fixture;

[0013] Figure 3 yes Figure 2 A local enlarged view of point A;

[0014] Figure 4 yes Figure 1 An exploded view of a fixing device in another embodiment of the present invention;

[0015] Figure 5 yes Figure 4 A local enlarged view of point B;

[0016] Figure 6 yes Figure 1 A schematic diagram of the assembly of the fixing device to the rear end bolt;

[0017] Figure 7 yes Figure 6 A cross-sectional view of a fixing device;

[0018] Figure 8 yes Figure 7 A partial enlarged view of point C.

[0019] The corresponding relationship between the numbers and names in the accompanying drawings is as follows:

[0020] 100, fixing device; 10, frame structure; 11, longitudinal beam; 13, cross beam; 31, reinforcement beam; 30, reinforcement structure; 15, handle; 20, lock structure; 22, lock sleeve; 21, lock hook; 211, rotating shaft; 212, hook body; 2111, driving hole; 23, lock column; 26, lock groove; 251, guide groove; 253, positioning pin; 41, threaded pin; 42, fixing groove; 252, guide column; 254, positioning groove; 111, mounting surface; 51, magnetic suction piece; 52, magnetic suction groove; 53, positioning hole; 54, mounting boss; 101, inner cavity; 102, rear end bolt; 103, mounting hole; 104, countersunk groove; DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of the present invention, it is necessary to understand that the orientation or positional relationship indicated by the terms "thickness", "up", "down", "vertical", "parallel", "bottom", "angle", etc. is based on the orientation or positional relationship shown in the accompanying 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 therefore cannot be understood as a limitation on the present invention.

[0023] In the present invention, unless otherwise clearly specified and limited, terms such as "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements.

[0024] See also Figures 1 to 3 , an embodiment of the present invention provides a fixing device 100, which is used to fix a display unit. The fixing device 100 includes: a frame structure 10 and a reinforcement structure 30. The frame structure 10 includes two cross beams 13 arranged opposite to each other and two longitudinal beams 11 arranged opposite to each other and located between the two cross beams 13. Optionally, the two cross beams 13 are arranged horizontally and up and down, and the two longitudinal beams 11 are arranged vertically and left and right. Each cross beam 13 is connected to each longitudinal beam 11 end to end in sequence to form an annular frame for fixing the display unit. It can be understood that the display unit is fixed to the surface of the annular frame facing forward. The reinforcement structure 30 includes a reinforcement beam 31, and the two ends of the reinforcement beam 31 are respectively connected to the two cross beams 13 or the two ends of the reinforcement beam 31 are respectively connected to the two longitudinal beams 11, and at least one reinforcement beam 31 is provided. Specifically, in this embodiment, two reinforcement beams 31 are provided, and the two ends of the two reinforcement beams 31 are respectively connected to the two cross beams 13. The frame structure 10 and the reinforcement structure 30 are integrally formed, and each cross beam 13 , each longitudinal beam 11 and each reinforcement beam 31 are hollow structures, that is, each cross beam 13 , each longitudinal beam 11 and each reinforcement beam 31 has an inner cavity 101 , and each inner cavity 101 is connected.

[0025] The frame structure 10 and the reinforcement structure 30 are both made of carbon fiber material and are integrally formed by molding and blowing processes, thereby ensuring the overall structural strength of the fixture 100. Each cross beam 13, each longitudinal beam 11, and each reinforcement beam 31 are hollow structures, thereby reducing the weight of the frame structure 10 and the reinforcement structure 30, making the fixture 100 lightweight as a whole.

[0026] In one embodiment, both ends of each cross beam 13 and both ends of each longitudinal beam 11 are provided with a locking groove 26, and the fixing device 100 further includes a locking structure 20, the locking structure 20 includes a locking sleeve 22 disposed in the locking groove 26 and a locking member disposed in the locking sleeve 22 and used for locking and connecting with an external structural member. Optionally, during the compression molding, metal positioning corner blocks can be pre-embedded at four right angles of the compression molding die, wherein the locking groove 26 is provided on the positioning corner block. The locking sleeve 22 is embedded in the metal positioning corner block and is arranged in a hidden manner. The locking structure 20 can be used for quick connection, so that two adjacent frame structures 10 can be quickly spliced ​​together, the installation efficiency is improved, and the strength after splicing is ensured.

[0027] Optionally, a CNC installation step and an installation screw hole are reserved in the lock groove 26 of the metal positioning angle block, and the CNC installation step is processed by CNC to ensure the installation flatness of the lock hook 21 set.

[0028] Optionally, the metal positioning angle block is also fixed to the frame structure 10 by bolts, so that the metal positioning angle block is more firmly embedded in the carbon fiber frame structure 10, thereby ensuring the overall rigidity of the carbon fiber frame structure 10.

[0029] In one embodiment, the locking member is a locking hook 21, one end of the locking hook 21 is rotatably disposed on the locking sleeve 22, and the other end of the locking hook 21 is rotatably extended out of the locking sleeve 22 to engage with an external structural member. Specifically, the locking hook 21 can be used to achieve a quick connection between two frame structures 10. It can be understood that one of the frame structures 10 is provided with the locking hook 21, and the other frame structure 10 is provided with a connecting portion adapted to the locking hook 21.

[0030] In one embodiment, the inner walls of the two opposite sides of the lock sleeve 22 are provided with rotation holes, and the lock hook 21 includes a rotation shaft 211 with two ends respectively rotatably arranged in the two rotation holes and a hook body 212 connected to the rotation shaft 211 at one end, and a hook portion for buckling with an external structural member is provided at the other end of the hook body 212. Optionally, the lock slot 26 is provided with a debugging hole corresponding to the position of each rotation hole, and the end surface of the rotation shaft 211 is provided with a driving hole 2111, and a special wrench is inserted into the driving hole 2111 through the debugging hole, and drives the rotation shaft 211 to rotate, thereby driving the hook portion to rotate out or retract the lock sleeve 22, so that the lock hook 21 is switched between the locked and opened states.

[0031] In one embodiment, the locking member is a locking column 23, and two ends of the locking column 23 are respectively connected to the inner walls of the locking sleeve 22. Optionally, the shape of the locking column 23 is adapted to the hook portion.

[0032] In one embodiment, a connecting hole is formed on the inner wall of the lock sleeve 22, and an annular groove with an L-shaped cross section is formed on both ends of the lock column 23. The two ends of the lock column 23 are respectively inserted into the two connecting holes, and the bottom of each annular groove abuts against the edge of the corresponding connecting hole.

[0033] It can be understood that for a certain fixing device 100, both a locking hook 21 and a locking column 23 are provided, so that when multiple fixing devices 100 are connected to each other, a single fixing device 100 can lock the locking column 23 on another fixing device 100 through the locking hook 21, and can also be locked by the locking hook 21 of other fixing devices 100 through the locking column 23, thereby forming a complex connection relationship, which is conducive to eliminating errors in the splicing process, making the connection more compact, and ensuring the overall structural strength.

[0034] In one embodiment, the longitudinal beam 11 is arranged vertically, and a positioning pin 253 is protruded on the side surface of one cross beam 13 in a direction away from the other cross beam 13, and a positioning groove 254 is provided on the other cross beam 13 at a position corresponding to the positioning pin 253. It can be understood that the positioning pin 253 and the positioning groove 254 are respectively arranged on the two cross beams 13, so that the two frame structures 10 can be quickly positioned when they are spliced ​​up and down, thereby improving the installation efficiency and installation accuracy. Specifically, the positioning pin 253 and the positioning groove 254 are arranged in pairs.

[0035] In one embodiment, the cross beam 13 is arranged horizontally, and a guide groove 251 is provided on the side surface of one longitudinal beam 11 in a direction away from the other longitudinal beam 11, and the extension direction of the guide groove 251 is the same as the axial direction of the longitudinal beam 11, and a guide column 252 is provided on the other longitudinal beam 11 at a position corresponding to the guide groove 251. It can be understood that the guide groove 251 and the guide column 252 are provided on the two longitudinal beams 11 respectively, so that when the two frame structures 10 are spliced ​​up and down, under the guidance of the guide groove 251 and the guide column 252, the two fixing devices 100 can be quickly spliced, thereby improving the installation efficiency and installation accuracy. Optionally, the guide groove 251 and the guide column 252 are provided in pairs.

[0036] Optionally, the guide groove 251 , the guide column 252 , the positioning groove 254 and the positioning pin 253 are all arranged on the metal positioning angle block.

[0037] In one embodiment, the annular frame has a mounting surface 111 that is set forward and used to fix the display unit. A plurality of mounting bosses 54 are convexly provided on the mounting surface 111. Each mounting boss 54 is provided with a magnetic suction groove 52. A magnetic suction member 51 for magnetically cooperating with the display unit is provided in the magnetic suction groove 52. A processing plane is reserved for the table top of the mounting boss 54. After the fixing device 100 is molded, it is processed by CNC to ensure the flatness of the mounting boss 54. The magnetic suction member 51 can have a magnetic attraction with the magnetic member. Specifically, the magnetic suction member 51 in this embodiment is a metal iron sheet, and a magnetic member is provided at the position of the display unit corresponding to the magnetic suction groove 52. Installing the display unit by magnetic attraction is conducive to subsequent maintenance.

[0038] See also Figures 6 to 8 In one embodiment, a mounting hole 103 is provided on the mounting surface 111. The mounting hole 103 is located at the connection between the adjacent longitudinal beam 11 and the cross beam 13. A countersunk groove 104 is provided at one end of the mounting hole 103 that passes through the mounting surface 111, and an internal thread is provided at the other end of the mounting hole 103. Specifically, the end of the mounting hole 103 that passes through the mounting surface 111 is the front end, and correspondingly, the other end of the mounting hole 103 is the rear end. The front end bolt passes through the mounting hole 103 at the front end and screws the frame structure 10 to the front mounting back frame, so that the front installation of the fixing device 100 can be achieved, and the head of the front end bolt is buried in the countersunk groove 104, which will not interfere with the installation of the display unit and the frame structure 10. Correspondingly, rear installation can also be performed. Specifically, by providing an internal thread at the rear end, the external thread end of the rear end bolt 102 is screwed to the rear end, and the frame structure 10 is connected to the external structural member through the rear end bolt 102, so as to achieve the rear installation of the fixing device 100.

[0039] Optionally, a positioning hole 53 is further provided on the mounting boss 54 . Through the positioning hole 53 , not only can the display unit be quickly mounted on the fixing device 100 , but the positioning hole 53 can also ensure the mounting accuracy of the display unit.

[0040] Optionally, fixing holes are provided at four right angles of the frame structure 10, and the fixing holes are used for installing connecting blocks, thereby ensuring that the boxes have sufficient strength after being spliced, and that the display screen has sufficient tensile stress when being hoisted.

[0041] In one embodiment, two reinforcing beams 31 are provided, and the surfaces of the two reinforcing beams 31 are provided with fixing grooves 42, and the cross-sectional shape of the fixing grooves 42 is non-circular. The fixing device 100 also includes a threaded pin 41 provided in the fixing groove 42 and provided with an internal thread, and the cross-sectional shape of the threaded pin 41 is adapted to the shape of the fixing groove 42. Optionally, a power supply box for supplying power to the display unit is screwed to the two reinforcing beams 31 by bolts, one end of the bolt is connected to the Tina element and the other end of the bolt is screwed to the corresponding threaded pin 41. The cross-sectional shape of the fixing groove 42 is non-circular, so that the threaded pin 41 will not rotate, which is conducive to the stability of the power supply box. In this embodiment, the cross-sectional shape of the fixing groove 42 is elliptical. By providing the threaded pin 41 on the reinforcing beam 31 and connecting the power supply box, it is possible to prevent the power supply box from being screwed directly to the reinforcing beam 31, which is prone to slipping. Optionally, the fixing device 100 is located between the power supply box and the display unit.

[0042] In one embodiment, handles 15 for holding are provided on both longitudinal beams 11, and the assembly and transportation of the fixing device 100 can be facilitated by the handles 15. Specifically, the handles 15 are integrally molded with the frame structure 10 and conform to the ergonomic shape.

[0043] The present invention also proposes a display screen, which includes a fixing device 100. The specific structure of the fixing device 100 refers to the above embodiment. Since the display screen adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0044] In one embodiment, the display screen further includes a plurality of display units and a plurality of power boxes, and each fixing device 100 is sequentially spliced. Each display unit and each power box are respectively connected to a corresponding fixing device 100, and the fixing device 100 is located between the corresponding power box and the corresponding display unit. It can be understood that a plurality of display units are spliced ​​into a whole display screen.

[0045] In one embodiment, each annular frame is provided with a plurality of splicing threaded holes at intervals, each frame structure 10 is stacked in two layers and arranged opposite to each other, and the display screen also includes a plurality of connecting bolts; the connecting bolts are used to connect the two oppositely arranged frame structures 10, and the two ends of the connecting bolts are respectively screwed into the corresponding two splicing threaded holes.

[0046] It is understandable that when each display unit is set in a single layer, that is, a single plane display, the frame structures 10 are spliced ​​in sequence and the mounting surfaces 111 are arranged in the same plane. The fixing device 100 can be installed on the wall of the building by splicing the threaded holes. When each display unit is set in a double layer, that is, a double-sided display, two oppositely arranged frame structures 10 can be connected by connecting bolts, so that the display screen has a double-sided display function and ensures the strength and flatness of the double-sided screen installation.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixing device for fixing a display unit, characterized in that: The fixing device comprises: A frame structure, comprising two oppositely disposed cross beams and two oppositely disposed longitudinal beams located between the two cross beams, wherein each of the cross beams and each of the longitudinal beams are sequentially connected end to end to form an annular frame for fixing the display unit; and The reinforcement structure comprises a reinforcement beam, wherein two ends of the reinforcement beam are respectively connected to the two transverse beams or two ends of the reinforcement beam are respectively connected to the two longitudinal beams, and at least one reinforcement beam is provided; Wherein, the frame structure and the reinforcement structure are both made of carbon fiber material and are integrally formed by molding and blowing processes, and each of the cross beams, each of the longitudinal beams and each of the reinforcement beams are hollow structures; Both ends of the cross beam and both ends of the longitudinal beam are provided with locking grooves, and the fixing device further comprises a locking structure, wherein the locking structure comprises a locking sleeve arranged in the locking groove and a locking member arranged in the locking sleeve and used for locking connection with an external structural member, so as to realize rapid splicing of two adjacent frame structures; The locking member is a locking hook, one end of which is rotatably arranged on the locking sleeve, and the other end of which is rotatably extended out of the locking sleeve to buckle with an external structural member; the inner walls of the locking sleeve on both sides which are opposite to each other are provided with rotation holes, and the locking hook comprises a rotation shaft whose two ends are respectively rotatably arranged in the corresponding rotation holes and a hook body whose one end is connected to the rotation shaft, and the other end of the hook body is provided with a hook portion for buckling with an external structural member; The locking piece is a lock column, a connecting hole is provided on the inner wall of the lock sleeve, and an annular groove with an L-shaped cross-section is provided at both ends of the lock column. The two ends of the lock column are respectively inserted into the two connecting holes, and the bottom of each annular groove abuts against the corresponding edge of the opening of the connecting hole.

2. The fixing device according to claim 1, characterized in that: The longitudinal beams are arranged vertically, wherein a locating pin is protruded from a side surface of one of the cross beams in a direction away from the other cross beam, and wherein a locating groove is formed on the other cross beam at a position corresponding to the locating pin.

3. The fixing device according to claim 1, characterized in that: The cross beam is arranged horizontally, wherein a guide groove is protruded from the side surface of one longitudinal beam in a direction away from the other longitudinal beam, the extension direction of the guide groove is the same as the axial direction of the longitudinal beam, and a guide column is protruded from the other longitudinal beam at a position corresponding to the guide groove.

4. The fixing device according to claim 1, characterized in that: The annular frame has a mounting surface facing forward and used to fix the display unit, a plurality of mounting bosses disposed at intervals are convexly provided on the mounting surface, each of the mounting bosses is provided with a magnetic suction groove, and a magnetic suction member for magnetically cooperating with the display unit is provided in the magnetic suction groove.

5. The fixing device according to claim 4, characterized in that: A mounting hole is provided on the mounting surface, and the mounting hole is located at the connection between the adjacent longitudinal beam and the cross beam. A countersunk groove is provided at one end of the mounting hole that passes through the mounting surface, and an internal thread is provided at the other end of the mounting hole.

6. The fixing device according to claim 1, characterized in that: There are two reinforcing beams, and the surfaces of the two reinforcing beams are provided with fixing grooves, and the cross-sectional shape of the fixing grooves is non-circular. The fixing device also includes a threaded pin arranged in the fixing groove and provided with an internal thread, and the cross-sectional shape of the threaded pin is adapted to the shape of the fixing groove.

7. A display screen, characterized in that: include: A plurality of fixing devices as described in any one of claims 1 to 6, a plurality of display units and a plurality of power supply boxes, wherein each of the fixing devices is spliced ​​in sequence; each of the display units and each of the power supply boxes are respectively connected to the corresponding fixing devices, and the fixing devices are located between the corresponding power supply box and the corresponding display unit.

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