CN201218896Y

CN201218896Y - Inflatable projection screen

Info

Publication number: CN201218896Y
Application number: CN 200820118661
Authority: CN
Inventors: 王红; 李明藩
Original assignee: BEIJING AIRHOUSE MEMBRANOUS PRODUCT ENGINEERING Co
Current assignee: BEIJING AIRHOUSE MEMBRANOUS PRODUCT ENGINEERING Co
Priority date: 2008-05-30
Filing date: 2008-05-30
Publication date: 2009-04-08
Anticipated expiration: 2018-05-30

Abstract

The utility model relates to an inflatable projection screen, comprising a screen cloth, a frame and a seat. The frame and the seat comprise a plurality of inflation tubes. Pores are disposed on the bottom surface of the frame and the top surface of the seat, which are connected in adhering mode so as to get effect of pulling resistance and durability. A plurality of round holes are disposed on edge of the curtain and internal side of the frame, the curtain is disposed inside the frame through a connection piece, a inflation valve and a plurality of fixing pieces are provided on the surface of the frame and the seat. The utility model is made of PVC membrane of great stretch ability and air tightness, consequently having characteristics of light weight, convenient assembly, compact size after air discharging, and easiness in storage and transportation.

Description

The type inflatable projection screen

Technical field

The utility model relates to a kind of projection screen, especially a kind of type inflatable projection screen.

Background technology

Utilize projection arrangements such as slide projector, elevated projecting, liquid crystal projection apparatus with image projection on projection screen, image is amplified demonstration, can be used as demonstration, propaganda and the usefulness of teaching.At present known projection screen mainly is curtain to be fixed in rigid structure framework such as metal, to be suspended to the hard crossbeam or curtain is attached on the slab construction (as building surface), makes the smooth expansion of curtain, is used to throw image.Because volume and quality are bigger, under use or the roving situation of needs, dismounting, transportation and maintenance are all very inconvenient, tend to waste lot of manpower and material resources and time out of doors.

The utility model content

The utility model is bigger at existing projection screen overall weight, and the problem of dismounting, transportation and maintenance inconvenience, provides a kind of overall weight little and dismounting, transportation and a kind of type inflatable projection screen easy to maintenance.

For achieving the above object, the utility model provides a kind of type inflatable projection screen, comprise curtain, framework and base, described framework and described base are made of a plurality of gas-filled tubes, the downside surface of described framework and the uper side surface of described base are equipped with perforate, adopt bonding mode to be connected between the described perforate, the edge of described curtain and the inside edge of described framework are equipped with several circular holes, and by web member described curtain are arranged at described inside of frame.

The surface of described framework and described base is respectively equipped with gas filling valve and several fixtures.

Described gas filling valve is connected with the fan blower in the external world.

Described web member is cotton rope or tinsel.

Also be provided with auxiliary rod between described framework and the described base, the two ends of described auxiliary rod connect and are communicated with described base with described framework.

Described framework adopts the gas-filled tube of long strip type to be interconnected to constitute from beginning to end.

Compared with prior art, the utlity model has following advantage:

The type inflatable projection screen that the utility model provides, comprise curtain, framework and base, framework and base are made of a plurality of gas-filled tubes, the downside surface of framework and the uper side surface of base are equipped with perforate, adopt bonding mode to be connected between the perforate, the edge of curtain and the inside edge of framework are equipped with several circular holes, and by web member curtain are arranged at inside of frame, and the surface of framework and base is respectively equipped with gas filling valve and several fixtures.The whole inflatable structure that adopts of the utility model, framework and base make it possess stronger tension and permanance owing to adopt the mode of both-sided adhesive, and can bear the above hyperbar of 30,000 handkerchiefs; Owing to adopt fan blower directly framework and base inside to be inflated by gas filling valve, make its integral body after carrying out disposable inflation, can keep the effect of finalizing the design for a long time, do not need in use continuously tonifying Qi to be carried out in its inside.The PVC film that it is good that the utility model adopts stretchability and impermeability is made,, therefore have in light weight, easy accessibility, venting back volume is little, the convenient storage and characteristics such as transportation.In addition, be split-type structural owing to what adopt between curtain and the framework, when damaging, curtain also is convenient to it is replaced, also be easy to daily servicing to screen integral body.

Description of drawings

Fig. 1 is the utility model one-piece construction synoptic diagram;

Fig. 2 is another example structure synoptic diagram of the utility model.

The main element symbol description is as follows:

1 curtain, 2 frameworks

3 gas filling valves, 4 fixtures

5 web members, 6 auxiliary rods

7 bases

Embodiment

Fig. 1 is the utility model one-piece construction synoptic diagram, comprises curtain 1, framework 2, gas filling valve 3, fixture 4, web member 5 and base 7.Framework 2 all adopts the gas-filled tube of hollow type structure to constitute with base 7, and the uper side surface of the downside surface of framework 2 and base 7 also is respectively equipped with perforate (not describing among the figure), adopts the technology of both-sided adhesive mutually bonding between this perforate.Framework 2 is that highdensity PVC composite polyester fiber film material is made with base 7 employed materials, make its integral body possess high tensile force and surperficial bubble-tight while, can bear the above anticyclonic conflict power of 30,000 handkerchiefs, also have the characteristics of stretch-proof and permanance.Framework 2 adopts the inflation unit of long strip type to be interconnected to constitute from beginning to end, framework 2 also is provided with gas filling valve 3 and several fixtures 4 with the surface of base 7, this gas filling valve 3 is connected with the fan blower or the small air pump in the external world, fan blower or small air pump are directly injected gas the inside of framework and base by gas filling valve, and charge operation is carried out in its inside.Fan blower or small air pump after carrying out disposable inflation, because its whole impermeability is good, make it can keep the effect of finalizing the design for a long time to its integral body, do not need in use continuously tonifying Qi to be carried out in its inside.In addition, be equipped with several circular holes (not describing among the figure) in the inside edge of framework 2 and the outer ledge of curtain 1, web member 5 is good cotton rope of pliability or tinsel, with several circular holes at framework and curtain edge overlapped after, and all circular holes are set in together by cotton rope or tinsel, thereby curtain is fixed in inside of frame, the surface of curtain is under cotton rope or stretching wiry, also become more smooth, when increasing sharpness and brightness, also improved projector equipment with the imaging effect of ray cast behind the curtain surface.Thereby fixture 4 is by being connected with other devices firm being fixed on the plane of base, thereby guaranteed that projector equipment will have the ray cast of image when the curtain surface, can not rock because base is unstable, cause image shift to go out the indication range of curtain, cause the imperfect, discontinuous of image.

Fig. 2 is another example structure synoptic diagram of the utility model, mainly comprises auxiliary rod 6.The opening of framework 2 downside surfaces is communicated with the perforate of base 7 one end surfaces, and its perforate junction adopts the mode of both-sided adhesive bonding.Also be provided with auxiliary rod 6 between framework and base, this auxiliary rod 6 also is made of the gas-filled tube that high density PVC composite polyester fiber film material is made, and the two ends of auxiliary rod also are connected with framework 2 and base 7 respectively.Auxiliary rod combines with several fixtures of susceptor surface, thereby carries out the stability of step raising the utility model integral body.

In sum, the utility model is simple in structure, easy accessibility, easily operation, be easy to stored collapsed after will internal gas discharging, because it is little to take up room, and also convenient storage and transportation.In addition, be split-type structural owing to what adopt between curtain and the framework, when damaging, curtain also is convenient to it is replaced, also be easy to daily servicing to screen integral body.

More than disclosed only be several specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection domain of the present utility model.

Claims

1, a kind of type inflatable projection screen, comprise curtain, framework and base, it is characterized in that, described framework and described base are made of a plurality of gas-filled tubes, the downside surface of described framework and the uper side surface of described base are equipped with perforate, adopt bonding mode to be connected between the described perforate, the edge of described curtain and the inside edge of described framework are equipped with several circular holes, and by fixture described curtain are arranged at described inside of frame.

2, a kind of type inflatable projection screen as claimed in claim 1 is characterized in that, the surface of described framework and described base is respectively equipped with gas filling valve and several fixtures.

3, a kind of type inflatable projection screen as claimed in claim 1 is characterized in that, described gas filling valve is connected with the fan blower in the external world.

4, a kind of type inflatable projection screen as claimed in claim 1 is characterized in that, described web member is cotton rope or tinsel.

5, a kind of type inflatable projection screen as claimed in claim 1 is characterized in that, also is provided with auxiliary rod between described framework and the described base, and the two ends of described auxiliary rod connect and are communicated with described base with described framework.

6, a kind of type inflatable projection screen as claimed in claim 1 is characterized in that, described framework adopts the gas-filled tube of long strip type to be interconnected to constitute from beginning to end.