Display module and display device

Abstract

The utility model relates to a display module and a display device. The display module comprises a box body, and a mounting through hole is formed in the side wall of the box body; the covered edge is arranged on the outer side of the box body, and a threaded hole opposite to the mounting through hole is formed in the covered edge; and the connecting assembly comprises a connecting piece and a lock nut, the connecting piece comprises a first threaded section and a second threaded section, the first threaded section is in threaded connection with the threaded hole, the second threaded section is arranged in the mounting through hole in a penetrating mode, the lock nut is arranged on the inner side of the box body, and the lock nut is in threaded connection with the part, stretching into the box body, of the second threaded section. On one hand, the connecting assembly replaces a traditional plastic buckle, the mold opening cost is saved, and the manufacturing cost is reduced; and on the other hand, the connecting piece, the covered edge and the box body adopt a threaded mounting structure, so that the mounting and the dismounting are convenient, the problems of deformation, damage and the like are not easy to occur after frequent mounting and dismounting, the use reliability is high, and reliable guarantee is provided for subsequent maintenance and customer use.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and particularly to a display module and a display device. Background Art

[0002] LED display screens are usually used to display various information such as texts, pictures, and videos. They not only have high luminous brightness, clear display content, but also have clear and vivid colors and strong three-dimensional sense. Therefore, LED display screens are increasingly favored by consumers and are widely used in various occasions such as meetings, learning, and performances. Usually, an LED display screen is assembled by multiple display modules. A single display module includes a display screen, a box body, and a side frame. The display screen is installed on the front of the box body, and the side frame is installed on the side of the box body to play roles such as beautification and protection.

[0003] In the traditional technology, the side frame is installed on the box body by plastic buckles. This installation method has the following deficiencies: on the one hand, the plastic buckles need to be separately molded and processed, resulting in high manufacturing costs; on the other hand, the plastic buckles are prone to deformation after being assembled and disassembled multiple times, resulting in the problem that they cannot be firmly clamped to the box body, and even the plastic buckles are damaged and cannot continue to be used normally; furthermore, the plastic buckles are limited by the wall thickness of the box body. If the wall thickness of the box body is too thick or too thin due to manufacturing dimensional errors, the plastic buckles cannot be normally installed. Summary of the Utility Model

[0004] Based on this, in view of the problems of high manufacturing cost, poor applicability, and low use reliability, it is necessary to provide a display module and a display device.

[0005] In the first aspect of the present application, a display module is provided, which includes:

[0006] A box body, wherein an installation through hole is provided on the side wall of the box body;

[0007] A side frame, which is arranged on the outside of the box body, and a threaded hole opposite to the installation through hole is provided on the side frame; and

[0008] A connection component, the connection component includes a connecting piece and a lock nut. The connecting piece includes a first threaded section and a second threaded section. The first threaded section is screwed into the threaded hole, the second threaded section passes through the installation through hole, the lock nut is arranged inside the box body, and the lock nut is screwed to the part of the second threaded section extending into the box body.

[0009] In the display module of this solution, it specifically relates to an installation solution for assembling the edge trim to the box body through a connecting component. During the assembly operation, since the edge trim is preset with threaded holes and the side wall of the box body is provided with installation through holes, the first threaded section of the connecting piece can be directly screwed into the threaded hole first to assemble the connecting piece and the edge trim into one body. Then, the second threaded section of the connecting piece is passed through the installation through hole, and a lock nut is used to screw and tighten with the second threaded section inside the box body, so as to fix the edge trim on the box body; compared with the prior art, on the one hand, the connecting component replaces the traditional plastic buckle, saving the mold opening cost and reducing the manufacturing cost; on the other hand, the threaded installation structure of the connecting piece with the edge trim and the box body is not only convenient for installation and disassembly, but also not prone to deformation, damage and other problems after frequent installation and disassembly, with high reliability in use, providing a reliable guarantee for subsequent maintenance and customer use; furthermore, by reserving a sufficient length of the second threaded section, the second threaded section can adapt to the perforation installation of the installation through holes of boxes with various wall thicknesses, and is not limited by the wall thickness dimension error of the box body, with a wide range of applicable installation objects, achieving the effect of adapting and installing the edge trim to boxes with various different size specifications through the connecting component.

[0010] The technical solution of this application will be further described below:

[0011] In one embodiment, a driving groove is recessed inwardly at the end surface of the first threaded section away from the second threaded section, and the driving groove is used for cooperating with an installation and disassembly tool.

[0012] In one embodiment, the diameter of the first threaded section is smaller than the diameter of the second threaded section.

[0013] In one embodiment, the display module further includes a fitting ring, the fitting ring is sleeved outside the connecting piece, and the fitting ring is disposed between the first threaded section and the second threaded section;

[0014] The fitting ring includes a first side face facing the edge trim, a receiving groove is recessed on the side face of the edge trim facing the box body, the fitting ring is received in the receiving groove, and the first side face abuts and positions against the bottom wall of the receiving groove.

[0015] In one embodiment, a guiding structure is provided on the outer peripheral edge of the first side face, and the guiding structure is used to make it easier for the fitting ring to be inserted into the receiving groove.

[0016] In one embodiment, the fitting ring further includes an annular surface, one side of the annular surface along the axial direction of the connecting piece is connected to the outer peripheral edge of the first side face, and the annular surface abuts against the opposite side walls of the receiving groove.

[0017] In one embodiment, the mating ring further includes a second side surface facing the box body. The outer peripheral edge of the second side surface is connected to the other side of the annular surface along the axial direction of the connecting member, and the second side surface abuts against the outer wall surface of the box body.

[0018] In one embodiment, one of the inner ring wall of the mating ring and the outer peripheral wall of the connecting member is provided with a clamping protrusion, and the other of the inner ring wall of the mating ring and the outer peripheral wall of the connecting member is provided with a clamping groove, and the clamping protrusion is clamped in the clamping groove.

[0019] In one embodiment, the lock nut is a hand-tightening nut.

[0020] In a second aspect of the present application, there is also provided a display device, which includes at least two display modules as described above, and the at least two display modules are spliced and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a schematic assembly structure diagram of the display module according to an embodiment of the present application.

[0024] Figure 2 For Figure 1 a partial enlarged structure diagram at A in

[0025] Figure 3 For Figure 1 an exploded structure diagram of the display module in

[0026] Figure 4 For Figure 3 a partial enlarged structure diagram at B in

[0027] Figure 5 It is a schematic structure diagram of a connecting member according to an embodiment.

[0028] Figure 6 For Figure 5 a structure diagram of another perspective of

[0029] Description of the reference numerals:

[0030] 100. Display module; 10. Cabinet; 11. Mounting through-hole; 20. Edge wrapping; 21. Threaded hole; 22. Accommodating groove; 30. Connecting component; 31. Connecting piece; 311. First threaded section; 311a. Driving groove; 312. Second threaded section; 32. Lock nut; 40. Fitting ring; 41. First side; 42. Guiding structure; 43. Annular surface; 44. Second side. Detailed implementation manners

[0031] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0033] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, if there is a term "plural", the meaning of "plural" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In this application, unless otherwise clearly specified or limited, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] In this application, unless otherwise clearly specified or limited, if there is a description such as a first feature being "on" or "under" a second feature, its meaning may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0036] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0037] The display module 100 includes a display screen, a box body 10 and a side frame 20. The display screen is installed on the front of the box body 10 and is used to display various information such as text, pictures, videos, etc. The side frame 20 is installed on the side of the box body 10 to play roles such as beautification and protection. Currently, the side frame 20 is installed on the box body 10 by plastic buckles. There are the following deficiencies in this installation method: on the one hand, the plastic buckles need to be separately molded and processed, resulting in high manufacturing costs; on the other hand, the plastic buckles are prone to deformation after being installed and disassembled multiple times, resulting in the problem that they cannot be firmly clamped to the box body 10, and even causing the plastic buckles to be damaged and unable to continue to be used normally; furthermore, the plastic buckles are limited by the wall thickness of the box body 10. If the wall thickness of the box body 10 is too thick or too thin due to manufacturing dimensional errors, the plastic buckles cannot be normally installed.

[0038] Currently, a gourd-shaped hole is opened on the side wall of the box body 10, and a fixing post with a fixing cap is installed on the edge wrapping 20. During installation, first, the fixing cap is passed through the large-diameter hole of the gourd-shaped hole, and the fixing post is aligned with the small-diameter hole of the gourd-shaped hole. Then, the fixing post is slid and snapped into the small-diameter hole of the gourd-shaped hole to clamp and fix the edge wrapping 20. However, since the hole wall of the fixing post and the small-diameter hole of the gourd-shaped hole are in an interference extrusion fit relationship, after frequently installing and disassembling the edge wrapping 20, the small-diameter hole of the gourd-shaped hole is prone to extrusion deformation, resulting in the inability to tightly clamp the fixing post firmly, causing the edge wrapping 20 to be prone to loosening or even falling off.

[0039] In view of the deficiencies of the above-mentioned existing technology, the present application adopts a threaded connection method to replace the above-mentioned snap-fit installation methods of plastic snap fasteners and snap holes, and fixing posts and gourd-shaped holes. Specifically, only an installation through-hole 11 needs to be preset on the box body 10 and a threaded hole 21 needs to be preset on the edge wrapping 20 respectively. Then, the first threaded section 311 of the connecting member 31 is screwed with the threaded hole 21 to fix the connecting member 31 and the edge wrapping 20 in a combined manner. Then, the second threaded section 312 is passed through the installation through-hole 11 and locked and fixed by a lock nut 32 to fix the connecting member 31 and the box body 10 in a combined manner. Thus, the edge wrapping 20 can be threadedly locked to the box body 10 through the connecting assembly 30. The threaded connection method formed by the cooperation of the first threaded section 311 and the threaded hole 21 and the lock nut 32 and the second threaded section 312 is not only convenient and simple to install and operate, has a high connection strength, but also can be reliably applied to occasions with frequent installation and disassembly. There is no problem that the connecting components are deformed due to elastic clamping force (the existing technology of plastic snap fasteners and snap holes) or hard clamping force (the existing technology of fixing posts and gourd-shaped holes), resulting in loose clamping or even abnormal snap-fit installation. Therefore, the technical problems existing in the existing technology can be well solved.

[0040] Refer to Figures 1 to 4 , a display module 100 shown in an embodiment of the present application includes a box body 10, a display screen (not shown in the figure), an edge wrapping 20, and a connecting assembly 30. Among them, the box body 10 is the bearing main body of the display module 100 and is used to load and integrate the edge wrapping 20 and the display screen.

[0041] For example, the box body 10 can be, but is not limited to, one of a sheet metal box body 10, a die-cast box body 10, etc.

[0042] The box body 10 can be any one of a rectangle, a triangle, etc. Taking the box body 10 as a rectangle as an example, one of the side surfaces of the box body 10 with the largest area is set as the front surface, and the other side surface with the largest area is set as the back surface. The display screen is installed on this front surface to play the role of displaying information.

[0043] Optionally, the installation method of the display screen and the box body 10 can be at least one of screwing, snap-fitting, welding, riveting, bonding, etc., and can be flexibly selected according to actual needs.

[0044] The edge banding 20 is installed on the side surfaces in the length direction and / or width direction of the box body 10. For example, the edge banding 20 is specifically an aluminum profile edge banding 20, which has a simple manufacturing method, high structural strength, good durability, and good aesthetics.

[0045] Please continue to refer to Figure 5 and Figure 6 As shown in, an installation through hole 11 is provided on the side wall of the box body 10; the edge banding 20 is arranged on the outer side of the box body 10, and a threaded hole 21 opposite to the installation through hole 11 is provided on the edge banding 20; the connection assembly 30 includes a connecting piece 31 and a lock nut 32. The connecting piece 31 includes a first threaded section 311 and a second threaded section 312. The first threaded section 311 is screwed into the threaded hole 21, the second threaded section 312 passes through the installation through hole 11, and the lock nut 32 is arranged on the inner side of the box body 10 and is screwed with the part of the second threaded section 312 extending into the interior of the box body 10.

[0046] It should be noted that considering that the edge banding 20 is a strip-shaped structure, multiple groups of installation through holes 11, threaded holes 21, and connection assemblies 30 can be provided and arranged at equal intervals along the length direction of the edge banding 20 and the side wall of the box body 10, so as to obtain multi-point installation of the edge banding 20 and the box body 10, and improve the connection strength of the edge banding 20 and the matching effect between the edge banding 20 and the box body 10.

[0047] In summary, implementing the technical solution of this embodiment will obtain the following beneficial effects: In the display module 100 of this solution, it specifically relates to an installation solution for assembling the edge banding 20 to the box body 10 through the connection assembly 30. During the assembly operation, since the threaded hole 21 is preset on the edge banding 20 and the installation through hole 11 is provided on the side wall of the box body 10, the first threaded section 311 of the connecting piece 31 can be directly screwed into the threaded hole 21 to completely assemble the connecting piece 31 and the edge banding 20 into one body. Then, the second threaded section 312 of the connecting piece 31 is passed through the installation through hole 11, and the lock nut 32 is screwed and tightened with the second threaded section 312 on the inner side of the box body 10, so as to realize the installation and fixation of the edge banding 20 on the box body 10.

[0048] Compared with the prior art, on the one hand, the connection assembly 30 replaces the traditional plastic buckle, saving the mold opening cost and reducing the manufacturing cost; on the other hand, the threaded installation structure of the connecting piece 31 with the edge banding 20 and the box body 10 is not only convenient for installation and disassembly, but also not easily deformed or damaged after frequent installation and disassembly, with high use reliability, providing a reliable guarantee for subsequent maintenance and customer use; furthermore, by reserving a sufficient length of the second threaded section 312, the second threaded section 312 can adapt to the perforation installation of the installation through holes 11 of the box body 10 with various wall thicknesses, and is not limited by the wall thickness dimension error of the box body 10, with a wide range of applicable installation objects, realizing the effect that the edge banding 20 is adaptively installed to the box body 10 with various different size specifications through the connection assembly 30.

[0049] Please continue to refer to Figure 5 and Figure 6 , in one embodiment, the threaded hole 21 preset on the edge wrapping 20 is specifically a through threaded hole, which is arranged through the wall thickness direction of the edge wrapping 20.

[0050] Both the first threaded section 311 and the second threaded section 312 are cylinders and are coaxially connected. The end face of the first threaded section 311 far from the second threaded section 312 is concavely provided with a driving groove 311a, and the driving groove 311a is used to cooperate with the disassembly and assembly tool.

[0051] For example, when the driving groove 311a is a slotted groove, the disassembly and assembly tool is a slotted screwdriver. The blade of the slotted screwdriver is clamped into the slotted groove, and by rotating the slotted screwdriver, the first threaded section 311 can be driven to be screwed into the threaded hole 21, completing the quick screw connection and assembly of the connecting piece 31 and the edge wrapping 20. This installation method can eliminate the need to rotate the edge wrapping 20, greatly reducing the requirements for the installation operation space and reducing the difficulty of disassembling and assembling the edge wrapping 20 and the connecting piece 31.

[0052] Of course, in other alternative embodiments, the driving groove 311a can also be a cross groove, and correspondingly, the disassembly and assembly tool is a cross screwdriver; and so on.

[0053] In addition, in yet another embodiment, the diameter of the first threaded section 311 is smaller than the diameter of the second threaded section 312. For example, the first threaded section 311 uses an M3 thread, and the second threaded section 312 uses an M4 thread.

[0054] The wall thickness of the aluminum profile edge wrapping 20 is small. On this basis, in order to ensure the structural strength of the aluminum profile edge wrapping 20, the aperture of the preset threaded hole 21 should not be too large. By setting the threaded hole 21 with a diameter of 3Φ, it can better balance the screwing and matching with the first threaded section 311 while not causing insufficient structural strength of the aluminum profile edge wrapping 20. Using an M4 thread with a larger diameter for the second threaded section 312 is considered because the second threaded section 312 needs to be locked and fixed to the box body 10 through the lock nut 32. At this time, the second threaded section 312 will become the load-bearing part, that is, it will bear the gravity of the edge wrapping 20 and the lateral force of the connecting piece 31. Therefore, using a larger diameter design can enable the second threaded section 312 to obtain sufficient structural strength and prevent the second threaded section 312 from bending, deforming or even breaking due to insufficient strength.

[0055] It can be understood that the connecting piece 31 is actually a double-headed stud.

[0056] In order to facilitate the screwing installation or disassembly of the lock nut 32 and the second threaded section 312 passing through the installation through hole 11, in one embodiment, the lock nut 32 is a hand-tightening nut. Thus, the hand-tightening nut can be tightened or loosened without tools when needed, facilitating subsequent maintenance and other operations and improving the user experience.

[0057] Please continue to refer to Figures 4 to 6 In addition, on the basis of any of the above embodiments, the display module 100 further includes a mating ring 40. The mating ring 40 is sleeved outside the connecting member 31, and the mating ring 40 is disposed between the first threaded section 311 and the second threaded section 312. Optionally, the mating ring 40 can be integrally formed with the connecting member 31 or can be detachably assembled, and can be flexibly selected according to actual needs.

[0058] In this application, the mating ring 40 includes a first side surface 41 facing the edge wrapping 20. The side surface of the edge wrapping 20 facing the box body 10 is recessed with a receiving groove 22. The mating ring 40 is received in the receiving groove 22, and the first side surface 41 abuts against the bottom wall of the receiving groove 22 for positioning. When using a screwdriver to screw the first threaded hole 21 into the threaded hole 21, the mating ring 40 will slowly snap into the receiving groove 22 until the first side surface 41 abuts against the bottom wall of the receiving groove 22, so as to achieve the effect of installing and positioning the connecting member 31 and the edge wrapping 20.

[0059] Please continue to refer to Figure 5 Furthermore, in the above embodiment, a guiding structure 42 is provided on the outer periphery of the first side surface 41. The guiding structure 42 is used to make it easier for the mating ring 40 to be inserted into the receiving groove 22. For example, the guiding structure 42 can be any one of a rounded corner, a chamfer, etc.

[0060] Even further, in another embodiment, the mating ring 40 further includes an annular surface 43. One side of the annular surface 43 along the axial direction of the connecting member 31 is connected to the outer periphery of the first side surface 41, and the annular surface 43 abuts against the opposite side walls of the receiving groove 22. As described above, the edge wrapping 20 can be a specific aluminum profile structural member with a relatively thin wall thickness, so the structural strength is not very high. By means of the annular surface 43 of the mating ring 40 abutting against the opposite side walls of the receiving groove 22, and at the same time the first side surface 41 abuts against the bottom wall of the receiving groove 22, the mating ring 40 can form multi-directional support and reinforcement for the edge wrapping 20 from the inside, thereby significantly enhancing the overall structural strength of the edge wrapping 20.

[0061] In addition, in another embodiment, the mating ring 40 further includes a second side surface 44 facing the box body 10. The outer periphery of the second side surface 44 is connected to the other side of the annular surface 43 along the axial direction of the connecting member 31, and the second side surface 44 abuts against the outer wall surface of the box body 10. Therefore, when the second threaded section 312 passes through the mounting through hole 11, by means of the second side surface 44 abutting against the outer wall surface of the box body 10, the second threaded section 312 can be installed and positioned; and after the lock nut 32 is screwed onto the second threaded section 312, the lock nut 32 and the mating ring 40 can clamp the side wall of the box body 10 from both sides in the wall thickness direction of the box body 10, so that the connection assembly 30 and the box body 10 are assembled firmly and reliably.

[0062] It is easy to understand that the diameter of the mating ring 40 should be greater than the aperture diameter of the mounting through hole 11 and the threaded hole 21 to ensure that the mating ring 40 can reliably abut and position with the edge wrapping 20 and the box body 10.

[0063] In an alternative embodiment, the mating ring 40 and the connecting member 31 are assembled and connected. And to ensure that the mating ring 40 is firmly and reliably installed on the connecting member 31, one of the inner ring wall of the mating ring 40 and the outer peripheral wall of the connecting member 31 is provided with a clamping projection, and the other of the inner ring wall of the mating ring 40 and the outer peripheral wall of the connecting member 31 is provided with a clamping groove, and the clamping projection is clamped in the clamping groove. When the mating ring 40 is pushed from one end of the connecting member 31 and installed to the outside of the connecting member 31, the clamping projection automatically snaps into the clamping groove, realizing the rapid assembly of the mating ring 40 and the connecting member 31. The installation method is simple and highly feasible.

[0064] In addition to the above, the present application also provides a display device, which includes at least two display modules 100 as described above, and at least two display modules 100 are spliced and fixed. For example, at least two display modules 100 form a planar structure after being assembled, or may form a polyhedron structure.

[0065] Optionally, the display device is specifically an LED display device.

[0066] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as the combinations of these technical features do not conflict, they should be considered as the scope described in this specification.

[0067] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A display module, characterized in that: include: A box body, wherein a side wall of the box body is provided with a mounting through hole; An edge, the edge being arranged on the outer side of the box body, and the edge being provided with a threaded hole opposite to the mounting through hole; and A connecting component, the connecting component includes a connecting piece and a lock nut, the connecting piece includes a first threaded segment and a second threaded segment, the first threaded segment is screwed to the threaded hole, the second threaded segment is passed through the mounting through hole, the lock nut is arranged on the inner side of the box body, and the lock nut is screwed to the part of the second threaded segment extending into the interior of the box body.

2. The display module according to claim 1, characterized in that: An end surface of the first thread segment away from the second thread segment is inwardly concavely formed with an actuating groove, and the actuating groove is used to cooperate with an assembly and disassembly tool.

3. The display module according to claim 1, characterized in that: The diameter of the first thread segment is smaller than the diameter of the second thread segment.

4. The display module according to claim 1, characterized in that: The display module further includes a matching ring, which is sleeved on the outside of the connecting member and arranged between the first thread segment and the second thread segment; The matching ring includes a first side surface arranged toward the edging, the side surface of the edging facing the box body is recessed with a receiving groove, the matching ring is accommodated in the receiving groove, and the first side surface is abutted against the bottom wall of the receiving groove for positioning.

5. The display module according to claim 4, characterized in that: An outer periphery of the first side surface is provided with an introduction structure, and the introduction structure is used to make it easier for the matching ring to be inserted into the receiving groove.

6. The display module according to claim 4, characterized in that: The mating ring further includes an annular surface, which is connected to the outer peripheral edge of the first side surface along one side of the axial direction of the connecting member, and abuts against groove walls on two opposite sides of the accommodating groove.

7. The display module according to claim 6, characterized in that: The mating ring further comprises a second side surface disposed toward the box body, an outer peripheral edge of the second side surface is connected to the other side of the annular surface along the axial direction of the connecting member, and the second side surface abuts against an outer wall surface of the box body.

8. The display module according to claim 4, characterized in that: One of the inner ring wall of the matching ring and the outer peripheral wall of the connecting piece is provided with a locking protrusion, and the other of the inner ring wall of the matching ring and the outer peripheral wall of the connecting piece is provided with a locking groove, and the locking protrusion is locked in the locking groove.

9. The display module according to claim 1, characterized in that: The lock nut is a hand-tightened nut.

10. A display device, characterized in that: The device comprises at least two display modules according to any one of claims 1 to 9, wherein at least two of the display modules are spliced ​​and fixed.

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