Adjustment components, fixing devices and display equipment

Abstract

This invention relates to an adjustment component, a fixing device, and a display screen device for adjusting the height between a housing and a mounting frame. The components include a fixing member for connecting to the mounting frame; a movable member for connecting to the housing; and an adjustment member extending along a reference direction. One end of the adjustment member has a first threaded structure along its circumference that connects to the fixing member, and the other end has a second threaded structure along its circumference that connects to the movable member. The first and second threaded structures have opposite directions of rotation, so that when the adjustment member rotates, it can bring the fixing member and the movable member closer together or further apart along the reference direction. This arrangement simplifies the method of adjusting flatness. The fixing device includes the adjustment component, resulting in a simpler structure. The display screen device includes the fixing device, further simplifying its structure.

Description

Technical Field

[0001] This invention relates to the field of display screen installation technology, and in particular to adjustment components, fixing devices, and display screen equipment. Background Technology

[0002] In current display devices, to ensure a wide display area, multiple smaller screens are typically combined and spliced ​​together to form a larger display. The smaller the flatness between the multiple screens, the smoother the display and the better the display effect; conversely, a large flatness can easily lead to image distortion.

[0003] In traditional technology, adjustment mechanisms are typically included in display screen devices to adjust the flatness of the display screen.

[0004] However, adding an adjustment mechanism to the display device would make the device more structurally complex and inconvenient to install. Summary of the Invention

[0005] Therefore, it is necessary to provide an adjustment component, a fixing device, and a display device to address the issue of simplifying the structure of a display device while achieving adjustable display flatness.

[0006] An adjustment assembly for adjusting the height between the housing and the mounting frame, the adjustment assembly comprising:

[0007] Fasteners are used to connect to the mounting bracket;

[0008] Movable parts, used for connection with the housing;

[0009] An adjusting member extends along a reference direction. One end of the adjusting member is provided with a first threaded structure along the circumferential direction for connection with the fixed member, and the other end of the adjusting member is provided with a second threaded structure along the circumferential direction for connection with the movable member. The first threaded structure and the second threaded structure have opposite directions of rotation, so that when the adjusting member rotates, the fixed member and the movable member can move closer to each other along the reference direction or move further away from each other along the reference direction.

[0010] In one embodiment, the fixing member has a first mating cavity, one end of the adjusting member passes through the first mating cavity, and the cavity wall of the first mating cavity has an internal thread structure that mates with the first thread structure; or

[0011] The adjusting member has a first mating cavity at one end near the fixing member, the first threaded structure is provided on the cavity wall of the first mating cavity, the fixing member has a first mating part that passes through the first mating cavity, and the first mating part has an external threaded structure that mates with the first threaded structure.

[0012] In one embodiment, the movable member has a second mating cavity, one end of the adjusting member passes through the second mating cavity, and the cavity wall of the second mating cavity has an internal thread structure that mates with the second thread structure; or

[0013] The adjusting member has a second mating cavity at one end near the movable member. The second threaded structure is provided on the cavity wall of the second mating cavity. The movable member has a second mating part that passes through the second mating cavity. The second mating part has an external threaded structure that mates with the second threaded structure.

[0014] In one embodiment, the fixing member and / or the movable member is provided with a support structure extending along the reference direction, the support structure abutting against the adjusting member in a direction perpendicular to the reference direction.

[0015] In one embodiment, the adjusting member includes a rod extending along the reference direction, with the first threaded structure and the second threaded structure located at opposite ends of the rod.

[0016] In one embodiment, a locking portion extends radially on the rod body, the locking portion being located between the first threaded structure and the second threaded structure, and the locking portion including a plurality of regularly angular structures arranged around the rod body; or

[0017] The locking portion includes a plurality of tooth-like structures arranged around the rod body; or

[0018] The snap-fit ​​portion includes multiple arc-shaped protrusions arranged around the rod body.

[0019] In one embodiment, the adjustment assembly further includes a positioning rod, one end of which is inserted into the fixing member, and the other end of which is inserted into the movable member along the reference direction, so that the movable member is fixed relative to the fixing member in a direction of rotation about the reference direction as an axis.

[0020] In one embodiment, the fixing member and / or the movable member are provided with a positioning part, the positioning part is provided with a positioning hole along the reference direction, one end of the positioning rod passes through the positioning hole, and the hole wall of the positioning hole abuts against the positioning rod radially.

[0021] A fixing device for supporting a screen body, the fixing device comprising:

[0022] Fixture;

[0023] Multiple housings are used to support the screen.

[0024] Multiple adjustment components as described in any of the above embodiments are provided, the multiple adjustment components being arranged around the housing for easy adjustment of the flatness between any two adjacent housings, the fixing member being connected to the fixing frame, and the movable member being connected to the housing.

[0025] In one embodiment, the adjustment assembly further includes a connector disposed on the fixing member, the fixing member being connected to the fixing frame via the connector, and the movable member having an clearance opening, the projection of the clearance opening along the reference direction onto the fixing member being able to cover the connector.

[0026] In one embodiment, the housing is detachably connected to the screen, the adjustment component is disposed on the other side of the housing opposite to the screen, and the housing has a through-hole so that the side of the housing with the screen is connected to the side with the adjustment component.

[0027] A display screen device, the display screen device comprising:

[0028] The fixing device as described in any of the above embodiments;

[0029] The screen body is a plurality of screen bodies, all of which are disposed on the housing body.

[0030] In the aforementioned adjustment assembly, the first and second threaded structures rotate in opposite directions. This allows the adjusting member to pull the fixed and movable parts closer together or push them away as it rotates along its own axis. This allows the fixed frame and the housing to be moved closer or further apart, thus adjusting the distance between them. Furthermore, since flatness can be adjusted simply by controlling the rotation of the adjusting member, which is connected between the fixed and movable parts, the structure is much simpler. Attached Figure Description

[0031] Figure 1 This is a side view of a fixing device provided in one embodiment;

[0032] Figure 2 for Figure 1 Axonometric view of the middle part of the fixing device shown;

[0033] Figure 3 For along Figure 2 Sectional view of line AA in the middle;

[0034] Figure 4 for Figure 2 Side view of the adjusting component in the fixing device shown;

[0035] Figure 5 for Figure 4A side view of the fixing component in the adjustment assembly shown;

[0036] Figure 6 for Figure 4 A side view of the movable part in the adjustment assembly shown.

[0037] Reference numerals: 10, fixing device; 100, fixing frame; 200, housing; 210, communication port; 300, adjusting component; 310, fixing element; 311, first mating cavity; 320, moving part; 321, second mating cavity; 322, positioning part; 323, positioning hole; 324, clearance opening; 330, adjusting element; 331, first threaded structure; 332, second threaded structure; 333, rod; 334, snap-fit ​​part; 340, supporting structure; 350, positioning rod; 360, connecting element. Detailed Implementation

[0038] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0044] See Figure 1 An embodiment of the present invention provides a display screen device (not shown) including a fixing device 10 and a screen body (not shown, the same below). There are multiple screen bodies, all of which are mounted on the fixing device 10, and the screen bodies are fixed to a wall or other fixed structure by the fixing device 10.

[0045] Please see Figure 1 and Figure 2 In one embodiment, the fixing device 10 includes a fixing frame 100, a housing 200, and adjustment components 300. There are multiple housings 200, each used to support the screen. There are also multiple adjustment components 300, arranged around the edges of the housings 200 to adjust the flatness between any two adjacent housings 200. In this way, the flatness between multiple screens can be adjusted to improve the display effect.

[0046] Specifically, see Figure 1When multiple cabinets 200 are adjacent to each other in the same location, the adjacent areas of the multiple cabinets 200 can be simultaneously fixed to the same adjustment component 300. In this case, since the adjacent areas of the multiple cabinets 200 are all fixed to the same adjustment component 300, the multiple cabinets 200 can remain flat. Furthermore, this setup allows the flatness of the multiple cabinets 200 to be directly controlled by a single adjustment component 300. For a specific example of the aforementioned adjacent areas of the multiple cabinets 200, please refer to [link to example]. Figure 1 Point B in the middle.

[0047] Please see Figure 2 and Figure 3 In one embodiment, the adjustment assembly 300 includes a fixed member 310, a movable member 320, and an adjusting member 330. The fixed member 310 is used to connect to the mounting bracket 100. The movable member 320 is used to connect to the housing 200. The adjusting member 330 extends along a reference direction, and one end of the adjusting member 330 has a first threaded structure 331 connected to the fixed member 310 along the circumferential direction; the other end of the adjusting member 330 has a second threaded structure 332 connected to the movable member 320 along the circumferential direction. The first threaded structure 331 and the second threaded structure 332 have opposite directions of rotation, so that when the adjusting member 330 rotates, the fixed member 310 and the movable member 320 can move closer to each other along the reference direction or move further away from each other along the reference direction. (See [reference direction]). Figure 2 Middle arrow K.

[0048] In the aforementioned adjustment assembly 300, the first threaded structure 331 and the second threaded structure 332 rotate in opposite directions. Therefore, when the adjustment member 330 rotates, it can pull the fixed member 310 and the movable member 320 closer to each other, or push the fixed member 310 and the movable member 320 away from each other. This allows the fixed frame 100 and the housing 200 to move closer or further apart. In other words, the distance between the fixed frame 100 and the housing 200 can be adjusted. Thus, through the cooperation of multiple adjustment assemblies 300, the flatness between any two adjacent housings 200 can be adjusted to reduce the flatness of the display screen device. It is understood that by simply connecting the adjustment member 330 between the fixed member 310 and the movable member 320, and controlling the rotation of the adjustment member 330, the flatness can be adjusted, resulting in a simpler structure that is easier to process, manufacture, and install.

[0049] Furthermore, the two ends of the adjusting member 330 are connected to the fixed member 310 and the movable member 320 respectively, that is, the fixed frame 100 and the housing 200 are located at the two ends of the adjusting member 330 respectively. Since the adjusting member 330 adjusts the distance between the fixed member 310 and the movable member 320 by rotation, the adjusting member 330 can be driven to rotate through the gap between the fixed frame 100 and the housing 200 to adjust the flatness of the display screen device.

[0050] Compared to other adjustment methods, the adjustment method, which controls the rotation of the adjustment component 330° on the side of the display device, requires no additional maintenance or adjustment space. This means that less additional or reserved space is needed within the display device to achieve the desired flatness.

[0051] For example, in conventional technology, a flatness adjustment structure (hereinafter referred to as the adjustment structure for ease of understanding and distinction) is located at the adjacent points of two adjacent cabinets 200, aligning the two cabinets 200 by aligning the contact points. However, if the adjustment structure is located on the side of the cabinet 200 where the screen is located, it will affect the installation of the screen; if it is located on the side of the cabinet 200 away from the screen, it will obviously be inconvenient to adjust due to the obstruction between the cabinet 200 and the screen. Furthermore, the side of the cabinet 200 away from the screen is usually the part of the display device facing a wall or other fixed structure. If it is necessary to interact with the adjustment structure on the side of the cabinet 200 facing the wall, a certain amount of maintenance and adjustment space needs to be reserved for operating the adjustment structure, which will increase the space occupied by the display device.

[0052] Understandably, the same applies to other adjustment structures in traditional technology. Placing the adjustment structure on the side of the housing 200 where the screen is installed will affect the installation of the screen, while placing it on the side facing the wall will require reserved maintenance space.

[0053] In the aforementioned adjustment assembly 300, the two ends of the adjusting member 330 are respectively connected to the fixed member 310 and the movable member 320. The rotation of the adjusting member 330 can be controlled from the side of the display device, thereby avoiding the need for additional maintenance and adjustment space as described above. Therefore, it can relatively save the space occupied by the display device.

[0054] Combination Figure 3Regarding the ability to control the rotation of the adjusting member 330 from the side of the display device, it can be understood that the adjusting member 330 extends along the reference direction, and both the first threaded structure 331 and the second threaded structure 332 are located circumferentially on the adjusting member 330. That is, the adjusting member 330 is threadedly connected to the movable member 320 and the fixed member 310 in its circumferential direction, respectively. The circumferential direction of the adjusting member 330 refers to the direction surrounding the reference direction. Considering the transmission nature of the threaded structure itself, when the threaded structure is located circumferentially, by rotating the adjusting member 330 around the reference direction (i.e., rotating the adjusting member 330 around its own axis), the adjusting member 330 can provide a pushing or pulling force to the fixed member 310 and the movable member 320 in the direction along the reference direction. Since the housing 200 is connected to the movable part 320 and the fixed frame 100 is connected to the fixed part 310, and the movable part 320 and the fixed part 310 are respectively located at both ends of the adjusting part 330 along the reference direction, that is, the housing 200 and the fixed frame 100 are respectively located at both ends of the adjusting part 330 along the reference direction, the space between the housing 200 and the fixed frame 100 can facilitate the control of the adjusting part 330 to rotate around the reference direction as the axis.

[0055] Please refer to it again. Figure 1 In one embodiment, the housing 200 is detachably connected to the screen, meaning the screen can be removed from the housing 200. An adjustment component 300 is located on the housing 200 on the opposite side from the screen. A through-hole 210 is provided on the housing 200 to connect the side of the housing 200 where the screen is located to the side where the adjustment component 300 is located. It is understood that when the height of the housing 200 located in the edge area needs to be adjusted, the adjustment component 330 can be rotated directly from the side of the display device. When the height of the housing 200 located in the center area needs to be adjusted, the screen can be detached from the housing 200, and the adjustment component 330 can be rotated through the through-hole 210 between the fixed component 310 and the movable component 320 to adjust the flatness. The aforementioned height refers to the distance between the fixed component 310 and the movable component 320. This arrangement facilitates adjustment of the adjustment component 300 corresponding to any housing 200 in the display device.

[0056] Please see Figure 3 and Figure 4 In one embodiment, the adjusting member 330 includes a rod 333 extending along a reference direction, with a first threaded structure 331 and a second threaded structure 332 located at the two ends of the rod 333, respectively.

[0057] Furthermore, a locking portion 334 extends radially along the rod 333, positioned between the first threaded structure 331 and the second threaded structure 332. The locking portion 334 includes multiple regularly angular structures arranged around the rod 333. Thus, the locking portion 334 can be engaged by hand or with a tool to control the rotation of the adjusting member 330 and the angle of its rotation. Specifically, for example, the locking portion 334 can be a uniform hexagonal prism, allowing the adjusting member 330 to be driven to rotate by engaging it with a conventional wrench.

[0058] Of course, in other embodiments, to facilitate the rotation of the adjusting member 330, the locking part 334 may include a plurality of toothed structures surrounding the rod 333, and the rotation of the adjusting member 330 may be controlled by the engagement of the toothed structures. Alternatively, the locking part 334 may include a plurality of arc-shaped protrusions surrounding the rod 333, in order to facilitate the control of the rotation of the adjusting member 330 and the angle through which it rotates.

[0059] Please see Figures 4 to 6 In one embodiment, the fixing member 310 has a first mating cavity 311, and one end of the adjusting member 330 passes through the first mating cavity 311. The cavity wall of the first mating cavity 311 has an internal thread structure that mates with the first thread structure 331. In this case, the first thread structure 331 can be an external thread structure provided circumferentially at one end of the adjusting member 330.

[0060] Of course, the first mating cavity 311 can also be provided on the adjusting member 330. That is, the adjusting member 330 has a first mating cavity 311 at one end near the fixing member 310. The first threaded structure 331 is provided on the cavity wall of the first mating cavity 311, and the fixing member 310 has a first mating part (not shown in the figure, the same below) that passes through the first mating cavity 311. The first mating part has an external thread structure that mates with the first threaded structure 331. That is, in this case, the first threaded structure 331 is an internal thread structure.

[0061] Similarly, in one embodiment, the movable member 320 is provided with a second mating cavity 321, and one end of the adjusting member 330 passes through the second mating cavity 321. The cavity wall of the second mating cavity 321 is provided with an internal thread structure that mates with the second thread structure 332. At this time, the second thread structure 332 is an external thread structure provided circumferentially at one end of the adjusting member 330.

[0062] Similarly, the second mating cavity 321 can also be provided on the adjusting member 330. That is, the adjusting member 330 has a second mating cavity 321 at one end near the movable member 320, the second threaded structure 332 is provided on the cavity wall of the second mating cavity 321, the movable member 320 has a second mating part that passes through the second mating cavity 321, and the second mating part has an external thread structure that mates with the second threaded structure 332. In this case, the second threaded structure 332 is an internal thread structure.

[0063] It should be understood that the insertion and engagement methods of the adjusting member 330 and the fixed member 310, as well as the insertion and engagement methods of the adjusting member 330 and the movable member 320, can be arbitrarily combined and configured. When the first thread structure 331 and the second thread structure 332 rotate in opposite directions, and the thread structures on the fixed member 310 and the movable member 320 can respectively engage with the first thread structure 331 and the second thread structure 332, rotating the adjusting member 330 can cause the fixed member 310 and the movable member 320 to rotate towards or away from each other.

[0064] Please see Figures 4 to 6 In one embodiment, a support structure 340 extends along a reference direction on the fixed member 310 and / or the movable member 320, and the support structure 340 abuts against the adjusting member 330 in a direction perpendicular to the reference direction. This prevents the adjusting member 330 from deflecting relative to the fixed member 310 and / or the movable member 320, thus avoiding misalignment between the housings 200. Figure 5 Specifically, when the first mating cavity 311 is formed on the fixed member 310, the first mating cavity 311 can be directly formed along the reference direction on the support structure 340 located on the fixed member 310, thus the support structure 340 can support the adjusting member 330. It can be understood that the adjusting member 330 not only serves as a structure for adjusting the height between the fixed member 310 and the movable member 320, but also as a structure for connecting the fixed member 310 and the movable member 320. By providing the support structure 340 to support the adjusting member 330, it is possible to prevent the adjusting member 330 from deflecting relative to the fixed member 310 and / or the movable member 320, ensuring the stability of the connection between the fixed member 310 and the movable member 320.

[0065] Combination Figure 6 Similarly, when the second mating cavity 321 is formed on the movable member 320, the second mating cavity 321 can be directly formed on the support structure 340 located on the movable member 320 along the reference direction.

[0066] Please see Figures 3 to 6In one embodiment, the adjusting assembly 300 further includes a positioning rod 350. One end of the positioning rod 350 is inserted into the fixed member 310, and the other end is inserted into the movable member 320 along the reference direction, so that the movable member 320 is fixed relative to the fixed member 310 in the direction of rotation about the reference direction. In other words, the positioning rod 350 is distributed along the reference direction, and both ends of the positioning rod 350 are respectively inserted and engaged with the fixed member 310 and the movable member 320. The positioning rod 350 prevents the movable member 320 from rotating relative to the fixed member 310. That is, by using the positioning rod 350 in conjunction with the adjusting member 330, the movable member 320 can only move relative to the fixed member 310 along the reference direction. In this way, it is possible to prevent the movable member 320 from rotating with the adjusting member 330 and being unable to move in the reference direction.

[0067] Please see Figure 3 and Figure 6 In one embodiment, the fixing member 310 and / or the movable member 320 are provided with a positioning part 322. A positioning hole 323 is formed on the positioning part 322 along a reference direction. One end of the positioning rod 350 passes through the positioning hole 323, and the wall of the positioning hole 323 abuts against the positioning rod 350 radially. The wall of the positioning hole 323 supports the positioning rod 350 to prevent it from deflecting around the fixing member 310 and / or the movable member 320, ensuring that the positioning rod 350 always extends and is distributed along the reference direction.

[0068] Please refer to it again. Figure 2 and combined Figure 5 and Figure 6 In one embodiment, the adjustment assembly 300 further includes a connector 360 disposed on the fixing member 310. The fixing member 310 is connected to the fixing frame 100 via the connector 360. The movable member 320 has a clearance opening 324, the projection of the clearance opening 324 onto the fixing member 310 along the reference direction can cover the connector 360, that is, the clearance opening 324 can be aligned with the connector 360 along the reference direction. In this way, it is convenient to directly install the adjustment assembly 300 onto the fixing frame 100 from the side of the adjustment assembly 300 near the housing 200 or to remove the adjustment assembly 300 from the fixing frame 100, that is, it is convenient for front installation.

[0069] The aforementioned front installation refers to assembling and disassembling the display device from the front. The front of the display device refers to the side of the display device closest to the screen body, while the rear refers to the side closest to the screen. It is understood that in traditional technology, the installation method of the display device can be divided into front installation and rear installation, depending on whether it is front-mounted or rear-mounted. Front installation does not require a maintenance passage compared to rear installation, thus saving more space. In the above embodiment, since the movable piece is located in front of the fixed piece, a clearance opening 324 is provided on the movable piece to provide space for the mounting fastener 310, facilitating front installation.

[0070] Combination Figure 2 The connector 360 can be a screw or bolt. By passing the installation tool through the clearance opening 324 to the fixing member 310, the fixing member 310 is kept relatively fixed to the fixing bracket 100 through the connector 360, which facilitates front installation.

[0071] In one embodiment, the fastener 310 can be connected to the mounting bracket 100 via multiple connectors 360. The movable member 320 may also have multiple clearance openings 324, the distribution of which corresponds one-to-one with the positions of the multiple connectors 360.

[0072] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An adjustment assembly for adjusting the height between the housing and the mounting frame, characterized in that, The adjustment components include: Fasteners are used to connect to the mounting bracket; Movable parts, used for connection with the housing; An adjusting member extends along a reference direction. One end of the adjusting member is provided with a first threaded structure along the circumferential direction for connection with the fixed member, and the other end of the adjusting member is provided with a second threaded structure along the circumferential direction for connection with the movable member. The first threaded structure and the second threaded structure have opposite directions of rotation, so that when the adjusting member rotates, the fixed member and the movable member can move closer to each other along the reference direction or move further away from each other along the reference direction. The plurality of adjustment components are arranged around the edge of the housing to adjust the flatness between any two adjacent housings.

2. The adjustment component according to claim 1, characterized in that, The fixing member has a first mating cavity, one end of the adjusting member passes through the first mating cavity, and the cavity wall of the first mating cavity has an internal thread structure that mates with the first thread structure; or The adjusting member has a first mating cavity at one end near the fixing member, the first threaded structure is provided on the cavity wall of the first mating cavity, the fixing member has a first mating part that passes through the first mating cavity, and the first mating part has an external threaded structure that mates with the first threaded structure.

3. The adjustment component according to claim 1, characterized in that, The movable component has a second mating cavity, one end of the adjusting component passes through the second mating cavity, and the cavity wall of the second mating cavity has an internal thread structure that mates with the second thread structure; or The adjusting member has a second mating cavity at one end near the movable member. The second threaded structure is provided on the cavity wall of the second mating cavity. The movable member has a second mating part that passes through the second mating cavity. The second mating part has an external threaded structure that mates with the second threaded structure.

4. The adjustment component according to claim 1, characterized in that, The fixing member and / or the movable member are provided with a support structure extending along the reference direction, and the support structure abuts against the adjusting member in a direction perpendicular to the reference direction.

5. The adjustment component according to claim 1, characterized in that, The adjusting member includes a rod extending along the reference direction, with the first threaded structure and the second threaded structure located at both ends of the rod.

6. The adjustment component according to claim 5, characterized in that, A locking portion extending radially along the rod body is located between the first threaded structure and the second threaded structure. The locking portion includes multiple regularly angular structures arranged around the rod body; or The locking portion includes a plurality of tooth-like structures arranged around the rod body; or The snap-fit ​​portion includes multiple arc-shaped protrusions arranged around the rod body.

7. The adjustment component according to claim 1, characterized in that, The adjustment assembly further includes a positioning rod, one end of which is inserted into the fixed member, and the other end of which is inserted into the movable member along the reference direction, so that the movable member is fixed relative to the fixed member in the direction of rotation about the reference direction as the axis.

8. The adjustment component according to claim 7, characterized in that, The fixing member and / or the movable member are provided with a positioning part, and a positioning hole is provided on the positioning part along the reference direction. One end of the positioning rod passes through the positioning hole, and the hole wall of the positioning hole abuts against the positioning rod radially.

9. A fixing device for supporting a screen body, characterized in that, The fixing device includes: Fixture; Multiple housings are used to support the screen. Multiple adjustment components as described in any one of claims 1 to 8, wherein the fixing member is connected to the fixing frame, and the movable member is connected to the housing.

10. The fixing device according to claim 9, characterized in that, The adjustment assembly further includes a connector disposed on the fixing member, the fixing member being connected to the fixing frame through the connector, and the movable member having an clearance opening, the projection of the clearance opening along the reference direction onto the fixing member being able to cover the connector.

11. The fixing device according to claim 9, characterized in that, The housing is used to detachably connect to the screen. The adjustment component is located on the other side of the housing opposite to the screen. The housing has a through-hole so that the side of the housing with the screen is connected to the side with the adjustment component.

12. A display screen device, characterized in that, The display screen device includes: The fixing device as described in any one of claims 9 to 11; The screen body is a plurality of screen bodies, all of which are disposed on the housing body.

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