Multimedia shadow cloth equipment

Abstract

The multimedia shadow cloth equipment comprises a main body assembly, two supporting leg assemblies, a vertical rod assembly and a handle, the main body assembly comprises a shell, a straight rod and a hanging rod, shadow cloth is arranged in the shell, the straight rod is connected with the shadow cloth, and the hanging rod is connected with the straight rod; the two supporting leg assemblies are symmetrically arranged on the shell; the vertical rod assembly comprises a supporting vertical rod, a rotating shaft, a limiting plate and a hook, the supporting vertical rod is rotationally connected with the shell through the rotating shaft, and the shell is arranged close to the bottom end of the supporting vertical rod; the limiting plate is rotationally connected with the bottom end of the supporting vertical rod and abuts against the bottom of the shell. The hook is arranged at the top end of the supporting vertical rod; the handle is installed on the shell. According to the multimedia shadow cloth equipment provided by the embodiment of the utility model, the equipment can be freely moved according to the requirements of a user, and the multimedia shadow cloth equipment has higher flexibility and wider application range.

Description

Technical Field

[0001] This utility model relates to the field of multimedia equipment technology, and in particular to a multimedia projection screen device. Background Technology

[0002] The emergence of multimedia projection screens represents a fusion of modern technology and textile technology, revolutionizing image display, interactive experiences, and space utilization. The continuous development of multimedia projection screen technology has led to its widespread application in education, conferences, business, and the arts. In the future, with the continued advancement of materials science and computer technology, multimedia projection screens will become thinner, more intelligent, and endowed with more interactive and perceptive functions, fundamentally changing the way we interact with digital content.

[0003] In related technologies, multimedia projection screen devices are typically suspended high up and released via electric drive or by pulling downwards. However, such devices lack flexibility and are difficult to move according to user needs, limiting their applicability. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0005] Therefore, one objective of this utility model is to provide a multimedia projection screen device that can be moved arbitrarily according to the user's needs, has high flexibility, and is widely applicable.

[0006] To achieve the above objectives, the first aspect of this utility model provides a multimedia projection screen device, comprising: a main body assembly, two support leg assemblies, a vertical rod assembly, and a handle. The main body assembly includes a housing, a straight rod, and a hanging rod. The housing contains a projection screen, the straight rod is connected to the projection screen, and the hanging rod is connected to the straight rod. The two support leg assemblies are symmetrically arranged on the housing. The vertical rod assembly includes a supporting vertical rod, a rotating shaft, a limiting plate, and a hook. The supporting vertical rod is rotatably connected to the housing via the rotating shaft, and the housing is located near the bottom end of the supporting vertical rod. The limiting plate is rotatably connected to the bottom end of the supporting vertical rod and abuts against the bottom of the housing. The hook is located at the top end of the supporting vertical rod. The handle is mounted on the housing.

[0007] In addition, the multimedia projection screen device proposed above according to this utility model may also have the following additional technical features:

[0008] Specifically, the supporting vertical rod includes a first square tube, a second square tube, and a fixing member, wherein the first square tube is inserted into the interior of the second square tube, and the first square tube and the second square tube are slidably connected; the fixing member is disposed between the first square tube and the second square tube.

[0009] Specifically, a through groove is provided on the first square tube, and the hook is rotatably disposed inside the through groove.

[0010] Specifically, the first square tube has a through hole.

[0011] Specifically, the outer shell is provided with a right-angle limiting member, and the inner side of the right-angle limiting member is provided with a friction member.

[0012] Specifically, the support assembly includes two support plates, two first support legs, and two stop bars, wherein the two support plates are connected to the outer casing; the two first support legs are rotatably connected to the two support plates respectively; and the two stop bars are connected to the two support plates respectively, with the first support legs abutting against the stop bars.

[0013] Compared with the prior art, the present invention has the following advantages: the multimedia projection screen device of the present invention can be moved arbitrarily according to the user's needs, which has high flexibility and wide applicability. Moreover, the main components are arranged at the bottom of the vertical pole components, which has high stability during use.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a three-dimensional structural diagram of a multimedia projection screen device according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the support rod structure for a multimedia projection screen device according to an embodiment of the present invention;

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of the structure in area A;

[0019] Figure 4 This is a schematic diagram of the support frame assembly of a multimedia projection screen device according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the right-angle limiting component structure of a multimedia projection screen device according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the storage of a multimedia projection screen device according to an embodiment of the present invention.

[0022] Reference numerals: 1. Main body assembly; 11. Outer shell; 12. Straight rod; 13. Hanging rod; 2. Support leg assembly; 21. Support plate; 22. First support leg; 23. Stop bar; 3. Vertical rod assembly; 31. Supporting vertical rod; 311. First square tube; 312. Second square tube; 313. Fixing component; 32. Rotating shaft; 33. Limiting plate; 34. Hook; 4. Handle; 41. Through groove; 51. Through hole; 61. Right angle limiting component; 62. Friction component. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0024] The multimedia projection device of this utility model is described below with reference to the accompanying drawings.

[0025] like Figures 1-6 As shown, the multimedia projection screen device of this utility model embodiment may include: a main body component 1, two support leg components 2, a vertical rod component 3, and a handle 4.

[0026] The main component 1 includes a housing 11, a straight rod 12, and a hanging rod 13.

[0027] The housing 11 has a screen cloth inside, a straight rod 12 connected to the screen cloth, and a hanging rod 13 connected to the straight rod 12.

[0028] It should be noted that the shadow cloth described in this embodiment is connected to the outer shell 11 via a self-winding roller (not shown in the figure). The specific working principle of this connection has been disclosed in the prior art and will not be described in detail here.

[0029] Two support leg assemblies 2 are symmetrically arranged on the outer casing 11.

[0030] Understandably, the support leg assembly 2 reduces the contact area between the outer casing 11 and the ground, increases the pressure between them, and improves the stability of the device during use.

[0031] The vertical rod assembly 3 includes a supporting vertical rod 31, a rotating shaft 32, a limiting plate 33, and a hook 34.

[0032] The supporting vertical rod 31 is rotatably connected to the outer shell 11 via a rotating shaft 32, and the outer shell 11 is arranged near the bottom end of the supporting vertical rod 31.

[0033] It should be noted that the rotating shaft 32 described in this embodiment is rotatably connected to the outer casing 11 via a first bearing.

[0034] Understandably, arranging the outer casing 11 near the bottom of the supporting vertical rod 31 can lower the center of gravity of the equipment during use and increase its stability.

[0035] The limiting plate 33 is rotatably connected to the bottom end of the supporting vertical rod 31, and the limiting plate 33 abuts against the bottom of the outer shell 11.

[0036] It should be noted that the limiting plate 33 described in this embodiment is rotatably connected to the bottom end of the supporting vertical rod 31 via a second bearing.

[0037] Hook 34 is set at the top of the support rod 31, and handle 4 is installed on the housing 11.

[0038] It is understandable that the handle 4 is designed to make it easier for users to pick up and remove the device during use.

[0039] Specifically, Figure 6 This is a schematic diagram of the structure for storing this device. The user places the device in a preset position (e.g., in a multimedia classroom) using handle 4, then rotates the vertical rod assembly 3, which supports the vertical rod 31 to rotate 90° around the pivot 32, and then rotates the limiting plate 33 so that the limiting plate 33 is placed at the bottom of the outer shell 11. At this time, the vertical rod assembly 3 and the outer shell 11 are arranged vertically.

[0040] Extend and fix the support rod 31, then the user pulls the hanging rod 13 and places it on the hook 34. At this point, the projection screen in the outer casing 11 is unfolded, and the user can use this device for projection teaching.

[0041] This device can be moved freely according to the user's needs, which has high flexibility and wide applicability. The main components are arranged at the bottom of the vertical pole assembly, which has high stability during use.

[0042] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the supporting vertical rod 31 includes a first square tube 311, a second square tube 312, and a fixing member 313.

[0043] The first square tube 311 is inserted into the interior of the second square tube 312, the first square tube 311 and the second square tube 312 are slidably connected, and the fixing member 313 is disposed between the first square tube 311 and the second square tube 312.

[0044] In one embodiment of this utility model, such as Figure 1 and Figure 3 As shown, a through hole 51 is provided on the first square tube 311.

[0045] Understandably, making the support rod 31 retractable would facilitate the storage of this device and improve its flexibility.

[0046] When storing the first square tube 311 and the second square tube 312, the user can insert the fastener 313 into the through hole 51 to prevent the first square tube 311 from protruding from the inside of the second square tube 312 during transportation.

[0047] In one embodiment of this utility model, such as Figure 1 and Figure 3 As shown, a through groove 41 is provided on the first square tube 311, and the hook 34 is rotatably disposed inside the through groove 41.

[0048] It is understandable that the through slot 41 allows the hook 34 to be hidden inside the first square tube 311 during storage, thus facilitating the use of this device.

[0049] In one embodiment of this utility model, such as Figure 1 and Figure 5 As shown, a right-angle limiting member 61 is provided on the outer shell 11, and a friction member 62 is provided on the inner side of the right-angle limiting member 61.

[0050] It is understandable that the right-angle limiting component 61 can limit the support rod 31 during storage. The friction component 62 can be made of rubber, which can increase the friction between the support rod 31 and the right-angle limiting component 61, and prevent the support rod 31 from rotating arbitrarily during transportation.

[0051] In one embodiment of this utility model, such as Figure 1 and Figure 4 As shown, the support assembly 2 includes two support plates 21, two first support legs 22, and two stop bars 23.

[0052] Among them, two support plates 21 are connected to the outer shell 11, two first support legs 22 are rotatably connected to the two support plates 21 respectively, two stop bars 23 are connected to the two support plates 21 respectively, and the first support legs 22 abut against the stop bars 23.

[0053] It should be noted that during the handling process, the two first legs 22 can be rotated between the two support plates 21, thereby improving the aesthetics of the equipment. During use, the stop bar 23 can limit the first legs 22, thereby supporting the equipment.

[0054] In summary, the multimedia projection screen device of this utility model can be moved arbitrarily according to the user's needs, which has high flexibility and wide applicability. Furthermore, the main component 1 is arranged at the bottom of the vertical rod component 3, which ensures high stability during use.

[0055] In the description of this specification, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0057] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A multimedia projection device, characterized in that, include: The main body assembly (1), two support leg assemblies (2), a vertical rod assembly (3), and a handle (4), wherein, The main component (1) includes a shell (11), a straight rod (12), and a hanging rod (13), wherein, The interior of the outer casing (11) is provided with a shadow cloth, the straight rod (12) is connected to the shadow cloth, and the hanging rod (13) is connected to the straight rod (12); The two support leg assemblies (2) are symmetrically arranged on the outer shell (11); The vertical rod assembly (3) includes a supporting vertical rod (31), a rotating shaft (32), a limiting plate (33), and a hook (34), wherein, The supporting vertical rod (31) is rotatably connected to the outer shell (11) via the rotating shaft (32). The outer casing (11) is arranged near the bottom end of the supporting vertical rod (31); The limiting plate (33) is rotatably connected to the bottom end of the supporting vertical rod (31), and the limiting plate (33) abuts against the bottom of the outer shell (11); The hook (34) is disposed at the top of the supporting vertical rod (31); The handle (4) is mounted on the housing (11).

2. The multimedia projection device according to claim 1, characterized in that, The supporting vertical rod (31) includes a first square tube (311), a second square tube (312), and a fixing member (313), wherein, The first square tube (311) is inserted into the inside of the second square tube (312), and the first square tube (311) and the second square tube (312) are slidably connected; The fastener (313) is disposed between the first square tube (311) and the second square tube (312).

3. The multimedia projection screen device according to claim 2, characterized in that, The first square tube (311) has a through groove (41), and the hook (34) is rotatably disposed inside the through groove (41).

4. The multimedia projection device according to claim 2, characterized in that, The first square tube (311) has a through hole (51).

5. The multimedia projection screen device according to claim 1, characterized in that, The outer shell (11) is provided with a right-angle limiting member (61), and a friction member (62) is provided on the inner side of the right-angle limiting member (61).

6. The multimedia projection device according to claim 1, characterized in that, The support assembly (2) includes two support plates (21), two first supports (22), and two stop bars (23), wherein, The two support plates (21) are connected to the outer casing (11); The two first legs (22) are rotatably connected to the two support plates (21) respectively; The two stops (23) are respectively connected to the two support plates (21), and the first support foot (22) abuts against the stops (23).

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