CN219179768U - A holographic projection screen - Google Patents

Abstract

The utility model discloses a holographic projection screen, which comprises a fixed frame, wherein a notch is arranged in the fixed frame, a screen body is fixedly arranged in the notch, holographic curtains are arranged in the screen body, outer surface layers are arranged on two sides of the outer surface of each holographic curtain, outer protective layers are arranged on the outer sides of the two outer surface layers, a containing groove is formed in the top of the inner wall of the notch, a movable frame is arranged in the containing groove, a cleaning layer is fixedly connected onto the movable frame, a groove is formed in the side edge of the inner wall of the notch, a screw is rotationally connected onto the groove, and a screw block is connected onto the screw in a threaded manner. According to the utility model, through the cooperation of the fixing frame, the holographic curtain, the outer surface layer and the outer protective layer structure, the screen is ensured to be transparent and stable, stable projection display work can be performed, meanwhile, the screen has good protective performance, is wear-resistant and scratch-resistant, and can effectively improve the structural stability and the use safety of the whole curtain.

Description

A holographic projection screen

technical field

The utility model relates to the technical field of screens, in particular to a holographic projection screen.

Background technique

The digital economy is an economic form in which human beings identify, select, filter, store, and use big data (digital knowledge and information), guide and realize the rapid optimal allocation and regeneration of resources, and achieve high-quality economic development. The digital economy is a kind of New economy, new kinetic energy, and new business forms. In the promotion and use of big data digital economy, in order to facilitate the understanding of digital information, it is necessary to display digital information. Usually, in order to ensure that the displayed digital information is intuitive and clear or has When comparing, it is necessary to cooperate with holographic projection to realize the accurate and comprehensive display of numbers, while in the projection display of digital economic data, it is necessary to display through projection equipment and projection screen. These two are necessary equipment for holographic projection. To ensure that the holographic projection work can be carried out stably, there are certain requirements for the stability of the holographic projection screen;

Most of the existing holographic projection screens use a single gauze screen for projection, and the structural stability is not high, and the single gauze structure has low protection ability, and it is prone to damage caused by external force during use. Some conventional holographic projection screens need to be cleaned manually. The cleaning work is time-consuming and laborious, and the use is not convenient.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose a holographic projection screen.

In order to achieve the above purpose, the utility model adopts the following technical solution: a holographic projection screen, including a fixing frame, a notch is arranged in the fixing frame, a screen body is fixedly installed in the notch, and a screen body is arranged in the screen body There is a holographic curtain, the two sides of the outer surface of the holographic curtain are provided with outer layers, the outer sides of the two outer layers are provided with an outer protective layer, and the top of the inner wall of the notch is provided with a storage groove, and the inner wall of the storage groove A mobile frame is provided, a cleaning layer is fixedly connected to the mobile frame, a groove is provided on the side of the inner wall of the notch, a screw rod is connected to the groove in rotation, and a screw block is threaded on the screw rod, and the The screw block is fixedly connected with the moving frame, and an inner groove 1 is arranged in the fixed frame close to the top position, and the top of the screw rod is fixedly connected with a bevel gear 1 in the inner groove 1, and the inner groove 1 is rotatably connected with a rotating The second bevel gear is nested and fixedly connected to the rotating rod, the first bevel gear and the second bevel gear are engaged and connected, a motor is arranged on the outside of the fixed frame, and the output end of the motor is connected to one end of the rotating rod Fixed connection.

As a further description of the above technical solution:

The material of the outer layer is glass, and the outer protective layer is a protective film.

As a further description of the above technical solution:

The material of the cleaning layer is cleaning cotton, and the cleaning layer and the outer surface of the screen body are arranged in close contact.

As a further description of the above technical solution:

There are two sets of screw structures on the inner wall of the notch, which are located at corresponding positions at both ends of the moving frame.

As a further description of the above technical solution:

The joint position between the screw rod and the inner wall of the groove and the joint position between the rotating rod and an inner wall of the inner groove are all positioned and installed through bearings.

As a further description of the above technical solution:

There are two moving frame structures and they are located on both sides of the screen body, and there are two rotating rod structures correspondingly.

As a further description of the above technical solution:

The fixed frame is provided with an inner groove two, and the outer surfaces of the two rotating rods are nested and fixedly connected with sprockets in the inner groove two, and the two sprockets are connected through a chain transmission, and the motor and the One end of one of the rotating rods is fixedly connected.

The utility model has the following beneficial effects:

The holographic projection screen, through the combination of the fixed frame, the holographic curtain, the outer layer and the outer protective layer structure, ensures the stable light transmission of the screen, and can perform stable projection display work. At the same time, it has good protection performance, wear resistance and scratch resistance , which can effectively improve the structural stability and safety of the entire screen. Through the cooperative setting of the moving frame, cleaning layer, screw, screw block, rotating rod, bevel gear, sprocket, chain, motor and other structures, it can be driven conveniently and stably. The moving frame is lowered, so that it can stably drive the cleaning layer to perform automatic cleaning and wiping operations on the screen surface, ensuring the cleanliness of the entire screen, eliminating the need for manual, time-consuming and laborious cleaning operations, which greatly improves the convenience of screen cleaning.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of a holographic projection screen proposed by the present invention;

Fig. 2 is a front view of a holographic projection screen proposed by the present invention;

Fig. 3 is a side view of a holographic projection screen proposed by the present invention;

Fig. 4 is a top view of the sprocket structure of a holographic projection screen proposed by the present invention.

illustration:

1. Fixed frame; 2. Notch; 3. Screen body; 4. Holographic curtain; 5. Outer layer; 6. Outer protective layer; 7. Storage slot; 8. Mobile frame; 9. Cleaning layer; 10. Groove ; chain.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific Therefore, it cannot be construed as a limitation on the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be interpreted as indicating or implying relative importance. In addition, Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or an internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Referring to Fig. 1-4, an embodiment provided by the utility model: a holographic projection screen, including a fixing frame 1, a notch 2 is arranged in the fixing frame 1, a screen body 3 is fixedly installed in the notch 2, and the notch The setting of 2 can realize the stable positioning of the screen body 3 while also forming a frame protection effect. The screen body 3 is provided with a holographic curtain 4, and both sides of the outer surface of the holographic curtain 4 are provided with outer layers 5. The outside of the surface layer 5 is provided with an outer protective layer 6. The holographic screen 4 is a screen structure for holographic projection. As a result, the top of the inner wall of the notch 2 is provided with a storage tank 7, and a mobile frame 8 is arranged in the storage tank 7, and a cleaning layer 9 is fixedly connected to the mobile frame 8. The setting of the cleaning layer 9 can be matched with the mobile frame 8 to adjust the entire screen structure. For cleaning operation, a groove 10 is provided on the side of the inner wall of the notch 2, and a screw 11 is rotatably connected in the groove 10, and a screw block 12 is threaded on the screw rod 11, and the screw block 12 and the groove 10 are nested and slidingly connected , the screw block 12 is fixedly connected with the mobile frame 8, the fixed frame 1 is provided with an inner groove 13 near the top position, the top of the screw rod 11 is fixedly connected with a bevel gear 14 in the inner groove 13, and the inner groove 13 rotates Connected with rotating rod 15, on the rotating rod 15, nested and fixedly connected with bevel gear two 16, bevel gear one 14 and bevel gear two 16 are meshing connection, the outside of fixed frame 1 is provided with motor 17, the output end of motor 17 and the rotating One end of the rod 15 is fixedly connected.

The material of the outer layer 5 is glass, and the outer protective layer 6 is a protective film. The outer layer 5 of the glass material can not only ensure that the entire screen can stably carry out projection work, but also play a protective effect on the screen. The outer protective layer 6 The device is attached to the glass surface, and the protective film can be made of ARM material, which has good light transmission and also has good protective performance, wear resistance and scratch resistance, so as to provide stable protection for the entire screen.

The material of the cleaning layer 9 is cleaning cotton, and the outer surface of the cleaning layer 9 and the screen body 3 is arranged to fit together. The cleaning layer 9 cooperates with the setting of the moving frame 8 to stably wipe the screen surface, thereby ensuring the smoothness of the screen. Cleanliness.

The screw rod 11 structure of the inner wall of the notch 2 has two groups and is located at the corresponding positions of the two ends of the mobile frame 8. The setting of the two groups of screw rod 11 structures can make the two ends of the mobile frame 8 can rise and fall synchronously, ensuring the stability and stability of the structure. Stability, one rotating rod 15 corresponds to two bevel gear structures, corresponding to two screw rod 11 structures, when the rotating rod 15 rotates, the two screw rods 11 can be driven to rotate synchronously through the two bevel gear structures, and the two screw rods 11 can be driven synchronously Screw block 12 lifts, thereby can drive movable frame 8 stable lifting.

The joint position of screw rod 11 and groove 10 inwall and the joint position of rotating rod 15 and inner groove-13 inwall are all positioned and installed by bearings, and the setting of bearing can guarantee that screw rod 11 and rotating rod 15 can rotate stably.

There are two moving frame 8 structures and are located on both sides of the screen body 3, and two rotating rods 15 structures are correspondingly provided with two, and inner grooves 18 are arranged in the fixed frame 1, and the outer surfaces of the two rotating rods 15 are located on the inner surface. Slot two 18 are nested and fixedly connected with sprocket 19, two sprockets 19 are connected by chain 20 transmission, motor 17 is fixedly connected with one end of one of the rotating rods 15, the setting of two groups of moving frames 8 can drive two The cleaning layer 9 cleans and wipes both sides of the screen synchronously to achieve the purpose of convenient cleaning. When the motor 17 drives one of the rotating rods 15 to rotate, through the cooperation of the sprocket 19 and the chain 20, the two rotating rods 15 can be synchronized. Rotation, in conjunction with the structure of the bevel gear and the structure of the screw rod 11, can drive the moving frame 8 on both sides to move synchronously for cleaning operation.

Working principle: When using the holographic projection screen, start the motor 17, and the motor 17 drives one of the rotating rods 15 to rotate. Through the transmission connection between the sprocket 19 and the chain 20, the two rotating rods 15 can be driven to rotate synchronously. The two rotating rods 15 Drive one group of bevel gear two 16 to rotate respectively, two groups of bevel gear two 16 drive two groups of bevel gear one 14 to rotate, thereby drive two groups of screw rods 11 to rotate, two groups of screw rods 11 drive two groups of screw blocks 12 to move, two groups of screw blocks 12 Then the two moving frames 8 are driven to move, and the cleaning layer 9 is driven to automatically wipe the outer surface of the screen body 3 while the two moving frames 8 are descending, so as to realize fast and convenient cleaning operation.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model, All should be included within the protection scope of the present utility model.

Claims (7)

1. A holographic projection screen comprising a mount (1), characterized in that: the utility model discloses a bevel gear, including fixed frame (1), recess (2) are provided with notch (2), fixed mounting has screen body (3) in notch (2), be provided with holographic curtain (4) in screen body (3), the surface both sides of holographic curtain (4) all are provided with extexine (5), two the outside of extexine (5) all is provided with outer inoxidizing coating (6), notch (2) inner wall top is provided with accomodates groove (7), accomodate and be provided with in groove (7) and remove frame (8), be connected with cleaning layer (9) on removing frame (8), notch (2) inner wall side is provided with recess (10), recess (10) rotation is connected with screw rod (11), threaded connection has screw rod (12) on screw rod (11), screw rod (12) and remove frame (8) fixed connection, be close to top position in fixed frame (1) and be provided with inside groove (13), and be located inside groove (13) fixedly connected with bevel gear (14), rotation bar (13) are connected with bevel gear (16) for two bevel gears (16) are connected with one in a nested bevel gear (16), the outer side of the fixing frame (1) is provided with a motor (17), and the output end of the motor (17) is fixedly connected with one end of the rotating rod (15).

2. The holographic projection screen of claim 1, in which: the outer surface layer (5) is made of glass, and the outer protective layer (6) is a protective film.

3. The holographic projection screen of claim 1, in which: the cleaning layer (9) is made of cleaning cotton, and the cleaning layer (9) is attached to the outer surface of the screen body (3).

4. The holographic projection screen of claim 1, in which: the screw rod (11) structures on the inner wall of the notch (2) are two groups in total and are positioned at the corresponding positions of the two ends of the movable frame (8).

5. The holographic projection screen of claim 1, in which: the connection position of the screw (11) and the inner wall of the groove (10) and the connection position of the rotating rod (15) and the inner wall of the first inner groove (13) are positioned and installed through bearings.

6. The holographic projection screen of claim 1, in which: the movable frames (8) are two in number and located at two sides of the screen body (3), and the two rotating rods (15) are correspondingly arranged.

7. The holographic projection screen of claim 6, in which: an inner groove two (18) is arranged in the fixing frame (1), two rotating rods (15) are arranged on the outer surface of the inner groove two (18) and are respectively and fixedly connected with a chain wheel (19) in a nested mode, the two chain wheels (19) are in transmission connection through a chain (20), and the motor (17) is fixedly connected with one end of one rotating rod (15).

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