CN221699422U - A holographic projection device - Google Patents

A holographic projection device Download PDF

Info

Publication number
CN221699422U
CN221699422U CN202420147009.4U CN202420147009U CN221699422U CN 221699422 U CN221699422 U CN 221699422U CN 202420147009 U CN202420147009 U CN 202420147009U CN 221699422 U CN221699422 U CN 221699422U
Authority
CN
China
Prior art keywords
fixedly connected
projection device
wall
groove
storage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202420147009.4U
Other languages
Chinese (zh)
Inventor
赵培恩
吴福财
江雪
石彦敬
李猛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Future Leader Electronic Technology Co ltd
Original Assignee
Shandong Future Leader Electronic Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Future Leader Electronic Technology Co ltd filed Critical Shandong Future Leader Electronic Technology Co ltd
Priority to CN202420147009.4U priority Critical patent/CN221699422U/en
Application granted granted Critical
Publication of CN221699422U publication Critical patent/CN221699422U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Toys (AREA)

Abstract

The utility model discloses a holographic projection device, which relates to the field of holographic projection devices and comprises a storage seat, wherein a first storage groove is formed in the storage seat, a projection device is connected in the first storage groove in a sliding mode, a sliding component is arranged in the first storage groove and comprises a fixed plate fixedly connected with the bottom wall of the projection device, a solid block is fixedly connected with the bottom wall of the fixed plate, and a round rod is fixedly connected with the outer wall of the solid block. According to the utility model, the sliding component is arranged, and the projection device can move up and down through rotating the rotating shaft, so that the projection device can be stored in the storage seat, the purpose of dust prevention of the projection device is realized, and the locking component is arranged, so that the projection device can be locked in position when moving up to the outside of the storage seat or being stored in the storage seat, and the purpose of conveniently and better displaying or storing the projection device is realized.

Description

一种全息投影装置A holographic projection device

技术领域Technical Field

本实用新型涉及全息投影装置领域,具体是一种全息投影装置。The utility model relates to the field of holographic projection devices, in particular to a holographic projection device.

背景技术Background Art

全息投影技术(front-projected holographic display)属于3D技术的一种,原指利用干涉原理记录并再现物体真实的三维图像的技术,而后随着科幻电影与商业宣传的引导,全息投影的概念逐渐延伸到舞台表演、展览展示等商用活动中,面前市面上主要使用倒三角全息柜来对各种影像视频进行3D投影,该种倒三角全息展示柜采用三角形设计,从而最大程度上节省店铺的空间,因为展示柜的三个面都可以用来展示,而不像传统展示柜只能在一个方向展示,这也为店铺的陈列提供了更多的空间选择。Holographic projection technology (front-projected holographic display) is a type of 3D technology. It originally refers to the technology of using the principle of interference to record and reproduce the real three-dimensional image of an object. Later, with the guidance of science fiction movies and commercial propaganda, the concept of holographic projection has gradually extended to commercial activities such as stage performances and exhibitions. At present, the inverted triangle holographic cabinet is mainly used on the market to perform 3D projection on various image videos. This inverted triangle holographic display cabinet adopts a triangular design, which saves store space to the greatest extent, because the three sides of the display cabinet can be used for display, unlike traditional display cabinets that can only be displayed in one direction, which also provides more space options for store display.

传统的倒三角全息柜为固定结构,因此在平时展出时,该种倒三角全息柜的顶部容易积累灰尘,从而影响投影的效果,且该种倒三角全息柜的自身高度较高,因此清洁起来也较为不便,基于此,提供一种能够对投影设备进行收纳的全息投影装置。The traditional inverted triangle holographic cabinet is a fixed structure. Therefore, during normal exhibitions, dust is easily accumulated on the top of the inverted triangle holographic cabinet, thereby affecting the projection effect. In addition, the inverted triangle holographic cabinet is relatively high, so it is inconvenient to clean. Based on this, a holographic projection device capable of storing projection equipment is provided.

实用新型内容Utility Model Content

本实用新型的目的在于:为了实现能够对投影装置进行收纳的目的,提供一种全息投影装置。The utility model aims to provide a holographic projection device in order to achieve the purpose of storing the projection device.

为实现上述目的,本实用新型提供如下技术方案:一种全息投影装置,所述收纳座的内部开设有第一置物槽,所述第一置物槽的内部滑动连接有投影装置,所述第一置物槽的内部设有滑动组件,所述滑动组件包括:To achieve the above object, the utility model provides the following technical solution: a holographic projection device, wherein a first storage slot is provided inside the storage seat, a projection device is slidably connected inside the first storage slot, a sliding assembly is provided inside the first storage slot, and the sliding assembly includes:

与投影装置底壁固定连接的固定板,所述固定板的底壁固定连接有固体块,所述固体块的外壁固定连接有圆杆,所述圆杆的外壁转动连接有第一转板,所述第一转板的底部转动连接有第二转板,所述第二转板的底部固定连接有转轴,所述第二转板的外壁固定连接有把手;A fixing plate fixedly connected to the bottom wall of the projection device, the bottom wall of the fixing plate is fixedly connected to a solid block, the outer wall of the solid block is fixedly connected to a round rod, the outer wall of the round rod is rotatably connected to a first rotating plate, the bottom of the first rotating plate is rotatably connected to a second rotating plate, the bottom of the second rotating plate is fixedly connected to a rotating shaft, and the outer wall of the second rotating plate is fixedly connected to a handle;

所述第一置物槽的内壁两侧分别开设有第三置物槽,所述第三置物槽的内部一侧开设有第四置物槽,所述第四置物槽的底壁固定连接有第二弹簧,所述第二弹簧的上壁一端固定连接有滑块,所述滑块的上壁固定连接有挤压块;A third storage groove is respectively provided on both sides of the inner wall of the first storage groove, a fourth storage groove is provided on one side inside the third storage groove, a second spring is fixedly connected to the bottom wall of the fourth storage groove, a slider is fixedly connected to one end of the upper wall of the second spring, and an extrusion block is fixedly connected to the upper wall of the slider;

所述收纳座的内部位于挤压块的上方处开设有第二滑槽,所述第二滑槽与第一置物槽的顶部相导通,所述第二滑槽的内壁固定连接有第三弹簧,所述第三弹簧的一端固定连接有挡板,所述挡板的底部固定连接有挤压板,所述挤压板与挤压块的一端相贴合。A second slide groove is provided inside the storage seat above the extrusion block, the second slide groove is communicated with the top of the first storage groove, a third spring is fixedly connected to the inner wall of the second slide groove, one end of the third spring is fixedly connected to a baffle, the bottom of the baffle is fixedly connected to an extrusion plate, and the extrusion plate is fitted with one end of the extrusion block.

作为本实用新型再进一步的方案:所述转轴的外壁开设有用于限位块上下滑动的第一滑槽,所述第一滑槽的高度与限位块的滑动轨迹相匹配。As a further solution of the utility model: the outer wall of the rotating shaft is provided with a first sliding groove for the limit block to slide up and down, and the height of the first sliding groove matches the sliding track of the limit block.

作为本实用新型再进一步的方案:所述收纳座的内部开设有多个呈圆周分布的限位槽,所述限位槽的直径与限位块的直径大小相匹配。As a further solution of the utility model: a plurality of circumferentially distributed limiting grooves are provided inside the storage seat, and the diameter of the limiting grooves matches the diameter of the limiting block.

作为本实用新型再进一步的方案:所述投影装置与固定板的高度之和与滑块的上壁到挡板底壁的距离大小相匹配。As a further solution of the utility model: the sum of the heights of the projection device and the fixing plate matches the distance from the upper wall of the sliding block to the bottom wall of the baffle.

作为本实用新型再进一步的方案:所述滑块正视呈倒过来的“凸”字型结构,且所述滑块的凸出部分长度与第四置物槽的长度大小相匹配。As a further solution of the utility model: the slider is an inverted "convex"-shaped structure when viewed from the front, and the length of the protruding part of the slider matches the length of the fourth storage slot.

作为本实用新型再进一步的方案:所述收纳座的内部开设有供滑块、挤压块限位上下移动的升降槽,所述升降槽与第二滑槽、第四置物槽相导通,所述挤压块顶部靠近挤压板的一端呈弧面结构。As a further solution of the utility model: the interior of the storage seat is provided with a lifting groove for the slider and the extrusion block to limit the up and down movement, the lifting groove is connected with the second slide groove and the fourth storage groove, and the top of the extrusion block is in an arc structure at one end close to the extrusion plate.

与现有技术相比,本实用新型的有益效果是:Compared with the prior art, the beneficial effects of the utility model are:

通过设置滑动组件,通过转动转轴即可实现投影装置的上下移动,从而使得投影装置能够被收纳在收纳座的内部,实现对投影装置进行防尘的目的,通过设置锁止组件,使得投影装置在上移至收纳座的外部或者被收纳至收纳座的内部时,能够实现位置的锁止,从而实现便于更好的展示或收纳投影装置的目的。By providing a sliding assembly, the projection device can be moved up and down by rotating the rotating shaft, so that the projection device can be stored inside the storage seat, thereby achieving the purpose of dustproofing the projection device. By providing a locking assembly, the position of the projection device can be locked when it moves up to the outside of the storage seat or is stored inside the storage seat, thereby achieving the purpose of better displaying or storing the projection device.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

图1为本实用新型的结构示意图;Fig. 1 is a schematic diagram of the structure of the utility model;

图2为本实用新型的收纳座与投影装置、滑动组件连接剖视图;FIG2 is a cross-sectional view of the connection between the storage seat, the projection device, and the sliding assembly of the present invention;

图3为本实用新型的收纳座内部结构剖视图;FIG3 is a cross-sectional view of the internal structure of the storage seat of the present invention;

图4为本实用新型的收纳座与挡板、挤压板、挤压块连接剖视图;FIG4 is a cross-sectional view of the connection between the storage seat and the baffle, the extrusion plate, and the extrusion block of the utility model;

图5为本实用新型的收纳座与滑动组件、锁止组件连接剖视图。FIG5 is a cross-sectional view of the connection between the storage seat and the sliding assembly and the locking assembly of the present invention.

图中:1、收纳座;2、第一置物槽;3、投影装置;4、滑动组件;401、固定板;402、固体块;403、圆杆;404、第一转板;405、第二转板;406、转轴;407、把手;5、锁止组件;501、第二置物槽;502、第一弹簧;503、限位块;504、滑板;505、第一滑槽;6、限位槽;7、第三置物槽;8、第四置物槽;9、第二弹簧;10、滑块;11、挤压块;12、第二滑槽;13、第三弹簧;14、挡板;15、挤压板。In the figure: 1, storage seat; 2, first storage slot; 3, projection device; 4, sliding assembly; 401, fixed plate; 402, solid block; 403, round rod; 404, first rotating plate; 405, second rotating plate; 406, rotating shaft; 407, handle; 5, locking assembly; 501, second storage slot; 502, first spring; 503, limiting block; 504, sliding plate; 505, first slide slot; 6, limiting slot; 7, third storage slot; 8, fourth storage slot; 9, second spring; 10, sliding block; 11, extrusion block; 12, second slide slot; 13, third spring; 14, baffle; 15, extrusion plate.

具体实施方式DETAILED DESCRIPTION

下面将结合本实用新型实施例中的附图,对本实用新型实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本实用新型一部分实施例,而不是全部的实施例。基于本实用新型中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本实用新型保护的范围。The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

请参阅图1~5,本实用新型实施例中,一种全息投影装置,包括收纳座1,收纳座1的内部开设有第一置物槽2,第一置物槽2的内部滑动连接有投影装置3,第一置物槽2的内部设有滑动组件4,滑动组件4包括:Referring to FIGS. 1 to 5 , in an embodiment of the utility model, a holographic projection device includes a storage seat 1, a first storage slot 2 is provided inside the storage seat 1, a projection device 3 is slidably connected inside the first storage slot 2, a sliding assembly 4 is provided inside the first storage slot 2, and the sliding assembly 4 includes:

与投影装置3底壁固定连接的固定板401,固定板401的底壁固定连接有固体块402,固体块402的外壁固定连接有圆杆403,圆杆403的外壁转动连接有第一转板404,第一转板404的底部转动连接有第二转板405,第二转板405的底部固定连接有转轴406,第二转板405的外壁固定连接有把手407;A fixing plate 401 fixedly connected to the bottom wall of the projection device 3, a solid block 402 fixedly connected to the bottom wall of the fixing plate 401, a round rod 403 fixedly connected to the outer wall of the solid block 402, a first rotating plate 404 rotatably connected to the outer wall of the round rod 403, a second rotating plate 405 rotatably connected to the bottom of the first rotating plate 404, a rotating shaft 406 fixedly connected to the bottom of the second rotating plate 405, and a handle 407 fixedly connected to the outer wall of the second rotating plate 405;

第一置物槽2的内壁两侧分别开设有第三置物槽7,第三置物槽7的内部一侧开设有第四置物槽8,第四置物槽8的底壁固定连接有第二弹簧9,第二弹簧9的上壁一端固定连接有滑块10,滑块10的上壁固定连接有挤压块11;The inner wall of the first storage groove 2 is provided with a third storage groove 7 on both sides, and the inner side of the third storage groove 7 is provided with a fourth storage groove 8, the bottom wall of the fourth storage groove 8 is fixedly connected with a second spring 9, one end of the upper wall of the second spring 9 is fixedly connected with a slider 10, and the upper wall of the slider 10 is fixedly connected with an extrusion block 11;

收纳座1的内部位于挤压块11的上方处开设有第二滑槽12,第二滑槽12与第一置物槽2的顶部相导通,第二滑槽12的内壁固定连接有第三弹簧13,第三弹簧13的一端固定连接有挡板14,挡板14的底部固定连接有挤压板15,挤压板15与挤压块11的一端相贴合;A second slide groove 12 is provided inside the storage seat 1 above the extrusion block 11, and the second slide groove 12 is connected to the top of the first storage groove 2. A third spring 13 is fixedly connected to the inner wall of the second slide groove 12, and a baffle 14 is fixedly connected to one end of the third spring 13. An extrusion plate 15 is fixedly connected to the bottom of the baffle 14, and the extrusion plate 15 is fitted with one end of the extrusion block 11;

转轴406的内部设有锁止组件5,锁止组件5包括:A locking assembly 5 is provided inside the rotating shaft 406, and the locking assembly 5 includes:

开设于转轴406内部的第二置物槽501,第二置物槽501的底壁固定连接有第一弹簧502,第一弹簧502的顶端固定连接有限位块503,限位块503的外壁固定连接有滑板504;A second storage groove 501 is provided inside the rotating shaft 406, the bottom wall of the second storage groove 501 is fixedly connected to a first spring 502, the top of the first spring 502 is fixedly connected to a limiting block 503, and the outer wall of the limiting block 503 is fixedly connected to a slide plate 504;

转轴406的外壁开设有用于限位块503上下滑动的第一滑槽505,第一滑槽505的高度与限位块503的滑动轨迹相匹配;The outer wall of the rotating shaft 406 is provided with a first sliding groove 505 for the limit block 503 to slide up and down, and the height of the first sliding groove 505 matches the sliding track of the limit block 503;

投影装置3与固定板401的高度之和与滑块10的上壁到挡板14底壁的距离大小相匹配;The sum of the heights of the projection device 3 and the fixing plate 401 matches the distance from the upper wall of the slider 10 to the bottom wall of the baffle 14;

滑块10正视呈倒过来的“凸”字型结构,且滑块10的凸出部分长度与第四置物槽8的长度大小相匹配;The slider 10 is an inverted "convex"-shaped structure when viewed from the front, and the length of the protruding portion of the slider 10 matches the length of the fourth storage slot 8;

所述收纳座1的内部开设有供滑块10、挤压块11限位上下移动的升降槽,所述升降槽与第二滑槽12、第四置物槽8相导通,所述挤压块11顶部靠近挤压板15的一端呈弧面结构。The storage seat 1 has a lifting groove inside for the slider 10 and the extrusion block 11 to move up and down. The lifting groove is connected to the second slide groove 12 and the fourth storage groove 8. The top of the extrusion block 11 is close to the extrusion plate 15 and has an arc structure.

在本实施例中:该种全息投影装置在实际需要被收纳时,首先握住把手407,并转动把手407,此时把手407带动转轴406转动,转轴406带动第二转板405带动,第二转板405带动第一转板404转动,第一转板404带动圆杆403、固体块402、固定板401进行同步下移,同时固定板401带动投影装置3沿着第一置物槽2的内部移动,直至固定板401与滑块10的上壁接触,此时持续下移的固定板401对滑块10进行挤压,使得滑块10沿着第四置物槽8的内部下移,此时滑块10带动挤压块11同步下移,直至挤压块11不与挤压板15接触,此时挤压板15不受挤压,这时第三弹簧13带动挡板14与挤压板15同步移动,直至挡板14完全移动至第二滑槽12的最末端,此时就实现了挡板14对收纳座1顶端的封堵,通过上述零件的配合,实现了对投影装置3进行快速收纳的目的。In this embodiment, when the holographic projection device is actually needed to be stored, the handle 407 is first held and turned, at which time the handle 407 drives the shaft 406 to rotate, the shaft 406 drives the second rotating plate 405 to rotate, the second rotating plate 405 drives the first rotating plate 404 to rotate, the first rotating plate 404 drives the round rod 403, the solid block 402, and the fixed plate 401 to move downward synchronously, and at the same time the fixed plate 401 drives the projection device 3 to move along the inside of the first storage slot 2 until the fixed plate 401 contacts the upper wall of the slider 10, at which time the fixed plate 401 is held. The fixed plate 401 that continues to move downward squeezes the slider 10, so that the slider 10 moves downward along the inside of the fourth storage slot 8. At this time, the slider 10 drives the extrusion block 11 to move downward synchronously until the extrusion block 11 is no longer in contact with the extrusion plate 15. At this time, the extrusion plate 15 is not squeezed. At this time, the third spring 13 drives the baffle 14 to move synchronously with the extrusion plate 15 until the baffle 14 completely moves to the end of the second slide slot 12. At this time, the baffle 14 blocks the top of the storage seat 1. Through the cooperation of the above parts, the purpose of quickly storing the projection device 3 is achieved.

请着重参阅图5,收纳座1的内部开设有多个呈圆周分布的限位槽6,限位槽6的直径与限位块503的直径大小相匹配。Please refer to FIG. 5 in particular. A plurality of circumferentially distributed limiting grooves 6 are formed inside the storage seat 1 . The diameter of the limiting grooves 6 matches the diameter of the limiting block 503 .

在本实施例中:为了能够实现对投影装置3与固定板401的位置锁止,因此在收纳座1的内部设置有多个供限位块503插入的限位槽6,通过限位块503的插入与分离来实现投影装置3与固定板401的位置锁止与位置解锁。In this embodiment: in order to achieve position locking of the projection device 3 and the fixed plate 401, a plurality of limit grooves 6 for inserting limit blocks 503 are provided inside the storage seat 1, and the position locking and unlocking of the projection device 3 and the fixed plate 401 are achieved by inserting and separating the limit blocks 503.

以上所述的,仅为本实用新型较佳的具体实施方式,但本实用新型的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本实用新型揭露的技术范围内,根据本实用新型的技术方案及其实用新型构思加以等同替换或改变,都应涵盖在本实用新型的保护范围之内。What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims (7)

1. The utility model provides a holographic projection device, includes receiver (1), first thing groove (2) have been seted up to the inside of receiver (1), the inside sliding connection in first thing groove (2) has projection device (3), its characterized in that, the inside in first thing groove (2) is equipped with slip subassembly (4), slip subassembly (4) include:
The fixed plate (401) is fixedly connected with the bottom wall of the projection device (3), the solid block (402) is fixedly connected with the bottom wall of the fixed plate (401), the round rod (403) is fixedly connected with the outer wall of the solid block (402), the first rotating plate (404) is rotationally connected with the outer wall of the round rod (403), the second rotating plate (405) is rotationally connected with the bottom of the first rotating plate (404), the rotating shaft (406) is fixedly connected with the bottom of the second rotating plate (405), and the handle (407) is fixedly connected with the outer wall of the second rotating plate (405);
The two sides of the inner wall of the first storage groove (2) are respectively provided with a third storage groove (7), one side of the inner part of the third storage groove (7) is provided with a fourth storage groove (8), the bottom wall of the fourth storage groove (8) is fixedly connected with a second spring (9), one end of the upper wall of the second spring (9) is fixedly connected with a sliding block (10), and the upper wall of the sliding block (10) is fixedly connected with an extrusion block (11);
The inside of receiver (1) is located the top department of extrusion piece (11) and has seted up second spout (12), second spout (12) are switched on mutually with the top of first thing groove (2) of putting, the inner wall fixedly connected with third spring (13) of second spout (12), the one end fixedly connected with baffle (14) of third spring (13), the bottom fixedly connected with extrusion board (15) of baffle (14), extrusion board (15) are laminated mutually with the one end of extrusion piece (11).
2. Holographic projection device according to claim 1, wherein the interior of the spindle (406) is provided with a locking assembly (5), the locking assembly (5) comprising:
Offer in the inside second of pivot (406) put thing groove (501), the diapire fixedly connected with first spring (502) of second put thing groove (501), the top fixedly connected with stopper (503) of first spring (502), the outer wall fixedly connected with slide (504) of stopper (503).
3. The holographic projection device according to claim 2, wherein a first chute (505) for the stopper (503) to slide up and down is provided on the outer wall of the rotating shaft (406), and the height of the first chute (505) is matched with the sliding track of the stopper (503).
4. The holographic projection device according to claim 2, wherein a plurality of circumferentially distributed limiting grooves (6) are formed in the storage seat (1), and the diameter of the limiting grooves (6) is matched with the diameter of the limiting block (503).
5. Holographic projection device according to claim 1, wherein the sum of the heights of the projection device (3) and the fixed plate (401) matches the distance from the upper wall of the slider (10) to the bottom wall of the baffle (14).
6. A holographic projection device as claimed in claim 1, wherein the slider (10) is in a reverse "convex" configuration, and the length of the protruding portion of the slider (10) matches the length of the fourth storage slot (8).
7. The holographic projection device according to claim 1, wherein a lifting groove for limiting up-and-down movement of the sliding block (10) and the extrusion block (11) is formed in the storage seat (1), the lifting groove is communicated with the second sliding groove (12) and the fourth storage groove (8), and one end, close to the extrusion plate (15), of the top of the extrusion block (11) is in a cambered surface structure.
CN202420147009.4U 2024-01-22 2024-01-22 A holographic projection device Active CN221699422U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202420147009.4U CN221699422U (en) 2024-01-22 2024-01-22 A holographic projection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202420147009.4U CN221699422U (en) 2024-01-22 2024-01-22 A holographic projection device

Publications (1)

Publication Number Publication Date
CN221699422U true CN221699422U (en) 2024-09-13

Family

ID=92637751

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202420147009.4U Active CN221699422U (en) 2024-01-22 2024-01-22 A holographic projection device

Country Status (1)

Country Link
CN (1) CN221699422U (en)

Similar Documents

Publication Publication Date Title
CN221699422U (en) A holographic projection device
CN207216987U (en) A kind of multimedia all-in-one machine
CN209086648U (en) A line and grid projection device for teaching Chinese character writing
CN216089849U (en) Showcase with adjusting function
CN111457214A (en) Suspensible hidden type household projector bracket
CN107149289B (en) A kind of power marketing cabinet
CN204541330U (en) A kind of automatic mobile cabinet in many rails corner with metamorphic mechanisms
CN205390854U (en) Multi -functional electronic wall bed with remove audio -visual wall
CN114464093A (en) Visual transmission design display device
CN211320494U (en) HDMI connecting wire convenient to accomodate
CN222851128U (en) A solid state hard disk testing device
CN215376582U (en) Portable multimedia projector for teaching
CN209028316U (en) A kind of AR equipment with Telescopic
CN211237727U (en) Mobile hard disk with movable USB male head
CN219969253U (en) Statistical board
CN217013245U (en) Dustproof assembly for television cabinet
CN207020981U (en) Automatic disk changer
CN214256930U (en) Purchase with portable digital information recording device
CN111317259A (en) Can accomodate desk of computer display screen
CN210666307U (en) A projector dust removal structure
CN210721008U (en) Volume holographic optical projector device
CN216721464U (en) Hard disk video recorder with dustproof function
CN209676738U (en) A kind of video conference terminal radiator
CN217273233U (en) A hard disk video recorder with a connecting bracket
CN110716373A (en) Projector with a light source

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant