CN206573848U - Projection screen component and the optical projection system with it - Google Patents

Abstract

The utility model discloses a kind of projection screen component and the optical projection system with it, wherein, projection screen component includes base, upper support bar, two edge support bars, cross bar and curtain, each edge support bar includes fix bar respectively, fixed cover and motion bar, one end of fix bar is connected with the two ends of upper support bar, fixation is set on the other end of fix bar and is connected with fix bar, motion bar is provided with multiple motion bar stopper slots arranged spaced apart, one end of motion bar is telescopically connected with base socket connection and the other end with fix bar, the two ends of cross bar are respectively equipped with the connection-peg suitable for coordinating with motion bar stopper slot, axial direction of two connection-pegs along cross bar it is scalable with motion bar stopper slot be connected, curtain is removably mounted in the framework that edge support bar is formed with upper support bar.According to projection screen component of the present utility model it is simple in construction, be convenient to mount and dismount, be easy to carry, using flexible, the projection size of curtain can be adjusted to be adapted to different operating place.

Description

Projection screen component and the optical projection system with it

Technical field

The utility model is related to projector equipment technical field, more particularly, to a kind of projection screen component and with it Optical projection system.

Background technology

At present, multimedia technology is widely used in the fields such as teaching, engineering, business office, publicity, and multimedia system is usual Including projector equipment and curtain component, existing curtain component structure is complex, is generally required in disassembly process by some Conventional tool, such as screwdriver, spanner, moreover, curtain component is often extremely inconvenient in movement, for being torn open in some needs The special occasions of dress is such as outdoor, publicity meeting-place, and not readily portable, assembling increases use cost, in addition, existing curtain group Part can not generally adjust curtain size, be not easy to adjustment space-consuming to adapt to different fields of employment, these often give user Bring greater inconvenience.

Utility model content

The utility model is intended at least solve one of technical problem in correlation technique to a certain extent.

Therefore, the utility model proposes a kind of projection screen component, simple in construction, the assembly and disassembly side of the projection screen component Just, it is easy to carry, using flexible, the projection size of curtain can be adjusted to be adapted to different operating place.

The utility model also proposes a kind of optical projection system with above-mentioned projection screen component.

According to the projection screen component of the utility model first aspect, including base；Upper support bar, the upper support bar is big Cause horizontally extending；Two edge support bars, each edge support bar includes fix bar, fixed cover and activity respectively Bar, one end of the fix bar is connected with the two ends of the upper support bar, and the fixation is set in the other end of the fix bar It is connected above and with the fix bar, the motion bar is provided with multiple motion bar stopper slots arranged spaced apart, the motion bar One end be telescopically connected with the fix bar with the base socket connection and the other end；Cross bar, the two ends of the cross bar The connection-peg suitable for coordinating with the motion bar stopper slot is respectively equipped with, the axial length of the cross bar is not more than two sides The distance being spaced between the motion bar of portion's support bar, the distance between opposite two ends of two connection-pegs are more than described in two The distance being spaced between the motion bar of edge vertical tube, axial direction of two connection-pegs along the cross bar it is scalable with the work Lever stopper slot is connected；Curtain, the curtain is removably mounted at the edge support bar and formed with the upper support bar Framework in.

According to projection screen component of the present utility model, by the way that edge support bar is set into Collapsible structure, and The two ends end of cross bar is respectively equipped with connection-peg, by the mating reaction between connection-peg and motion bar stopper slot, so as to realize Quick connection between cross bar and edge support bar, and then it is easy to the assembly and disassembly of projection screen component, moreover, using edge support bar Transport is also allowed for carrying using Collapsible structure, it is user-friendly, improve Consumer's Experience.The projection screen component has knot Structure is simple, be convenient to mount and dismount, be easy to carry, using it is flexible the characteristics of, without using instrument in assembling and dissembling process, can both simplify dress With process, the assembly and disassembly time is saved, laborsaving purpose can be reached again, Consumer's Experience is improved.

In addition, according to projection screen component of the present utility model, can also have technical characteristic additional as follows：

According to one embodiment of the present utility model, the fix bar is provided with fix bar stopper slot, the fixed cover Provided with limited block, the limited block is plugged in the motion bar stopper slot described solid to fix by the fix bar stopper slot Fixed pole and the relative position of the motion bar.

According to one embodiment of the present utility model, the two ends end of the cross bar is respectively equipped with movable component, described to insert Joint is connected with the movable component with relatively described cross bar telescopic action.

According to one embodiment of the present utility model, the movable component includes：Sleeve pipe, described sleeve pipe is plugged on the horizontal stroke The end of bar；Movable part, the movable part is along the axially extending of described sleeve pipe and is telescopically located in described sleeve pipe, the work Moving part is provided with boss, and one end of the movable part is stretched out described sleeve pipe and is connected with the connection-peg；Fixing nut, the fixation Nut is connected the movable part being fixed in described sleeve pipe with the other end of the movable part.

According to one embodiment of the present utility model, the projection screen component also includes：Spring, the spring is set in On the movable part, the two ends of the spring are respectively only to one end end face and the boss of described sleeve pipe.

According to one embodiment of the present utility model, the cross bar and the upper support bar are respectively formed as telescopic rod.

According to one embodiment of the present utility model, the projection screen component also includes：Adapter, the adapter is set To connect the edge support bar and the upper support bar between the edge support bar and the upper support bar.

According to one embodiment of the present utility model, affiliated curtain and the edge support bar, the upper support bar and Connected between the cross bar by hook or velcro.

According to one embodiment of the present utility model, the curtain include it is multiple, multiple various sizes of curtains with it is described Edge support bar and the framework of upper support bar formation coordinate to adjust projection size.

According to the optical projection system of the utility model second aspect, including the projection screen group according to above-described embodiment Part；Rechargeable battery is provided with projector equipment, the projector equipment；Projection bracket, the projector equipment is detachably arranged in described On projection bracket.

Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.

Brief description of the drawings

Fig. 1 is the structural representation of the optical projection system according to the utility model embodiment；

Fig. 2 is portion's dress figure according to the projection screen component of the utility model embodiment；

Fig. 3 is the enlarged drawing of A portions described in Fig. 2；

Fig. 4 is the enlarged drawing of B portions described in Fig. 2.

Reference：

100：Projection screen component；

10：Base；

20：Upper support bar；

30：Edge support bar；

31：Fix bar；31a：Fix bar stopper slot；32：Fixed cover；32a：Limited block；

33：Motion bar；33a：Motion bar stopper slot；

40：Cross bar；41：Connection-peg；

50：Curtain；

60：Movable component；

61：Sleeve pipe；62：Movable part；62a:Boss；63：Fixing nut；64：Spring；

70：Adapter；

80：Projector equipment；

90：Projection bracket.

Embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings.Below by The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and it is not intended that new to this practicality The limitation of type.

First below the projection screen according to the utility model first aspect embodiment is specifically described with reference to accompanying drawing 1 to Fig. 4 Component 100.

According to the projection screen component 100 of the utility model embodiment, including base 10, upper support bar 20, two edge Support bar 30, cross bar 40 and curtain 50.

Specifically, upper support bar 20 extends generally in a horizontal direction, and each edge support bar 30 includes fix bar respectively 31st, fixed cover 32 and motion bar 33, one end of fix bar 31 are connected with the two ends of upper support bar 20, and fixed cover 32 is located at fix bar It is connected on 31 other end and with fix bar 31, motion bar 33 is provided with multiple motion bar stopper slot 33a arranged spaced apart, living One end of lever 33 is telescopically connected with the socket connection of base 10 and the other end with fix bar 31, and the two ends of cross bar 40 are set respectively There is the connection-peg 41 suitable for coordinating with motion bar stopper slot 33a, the axial length of cross bar 40 is not more than two edge support bars 30 Motion bar 33 between the distance that is spaced, the distance between opposite two ends of two connection-pegs 41 are more than the work of two edge vertical tubes The distance being spaced between lever 33, axial direction of two connection-pegs 41 along cross bar 40 it is scalable with motion bar stopper slot 33a coordinate Connection, curtain 50 is removably mounted in the framework that edge support bar 30 is formed with upper support bar 20.In other words, the projection screen Component 100 is main to be made up of base 10, upper support bar 20, two edge support bars 30, cross bar 40 and curtain 50, two bases 10 The bottom of edge support bar 30 is located at, and can be coordinated with the lower end of edge support bar 30 so that edge support bar 30 is plugged on To realize the supporting role to two edge support bars 30 in base 10, it is preferable that base 10 is ferrous material, to ensure entirety The stability of structure.

Further, edge support bar 30 is mainly made up of fix bar 31, fixed cover 32 and motion bar 33, upper support bar 20 In the horizontal direction (left and right directions as shown in Figure 2) extend, one end (upper end of fix bar 31 as shown in Figure 1) of fix bar 31 with Upper support bar 20 is connected, and the other end (lower end of fix bar 31 as shown in Figure 1) of fix bar 31 is arranged with fixed cover 32, motion bar 33 are provided with vertically (above-below direction as shown in Figure 2) motion bar stopper slot 33a arranged spaced apart, motion bar 33 End is plugged on base 10, and the upper end of motion bar 33 is set in fix bar 31, so that motion bar 33 can be relative to The elongation downwards of fix bar 31 is shunk upwards, and then realizes the regulation of the entire length of edge support bar 30, is easy to carry, is assembled.

Furthermore, the two ends (i.e. left part and right part) of cross bar 40 are respectively equipped with what is be engaged with motion bar stopper slot 33a Connection-peg 41, connection-peg 41 coordinates the stabilization of the framework to realize the formation of edge support bar 30 with motion bar stopper slot 33a grafting Property, furthermore, it is also possible to ensure the extension area of curtain 50.

In addition, the spacing distance that the circumferential lengths of cross bar 40 are less than or equal between two edge support bars 30, so that It is easy to cross bar 40 to assemble between edge support bar 30, is located between the opposite two ends of the connection-peg 41 of the end of edge support bar 30 Distance be more than the spacing of two edge support bars 30, two connection-pegs 41 can stretch along the axial direction of cross bar 40 so that It is engaged with the motion bar stopper slot 33a on the motion bar 33 of edge support bar 30, realizes the bottom to edge support bar 30 Supporting role, effectively maintain the stability of framework formed between edge support bar 30 and upper support bar 20, it is ensured that curtain 50 can fully extend.

In assembling, first, by telescopic movable rod 33 to adjust the relative position between motion bar 33 and fix bar 31 (regulation for realizing the entire length of edge support bar 30), and be fastenedly connected by fixed cover 32；Secondly, by upper support bar 20 Two ends be connected respectively with the upper end of fix bar 31 of two edge support bars 30；3rd, connect cross bar 40 and two edge support bars 30 motion bar 33, by the way that the grafting of connection-peg 41 of the one end of cross bar 40 is entered into left end motion bar stopper slot 33a, compresses cross bar 40 The connection-peg 41 of the other end, reduces the spacing between the opposite two ends of two connection-pegs 41, to entering right-hand member adjustable pipe stopper slot Afterwards, the right-hand member connection-peg 41 of cross bar 40 is unclamped so that right-hand member connection-peg 41 moves and inserts right-hand member motion bar stopper slot 33a, from And quick socket connection is realized, simplify installation process, such as screwdriver, spanner installation tool should not be used；Finally, by two sides The lower end grafting of portion's support bar 30 enters base 10.

Thus, according to the projection screen component 100 of the utility model embodiment, by the way that be set to edge support bar 30 can Stretching structure, and connection-peg 41 is respectively equipped with the two ends end of cross bar 40, pass through connection-peg 41 and motion bar stopper slot 33a Between mating reaction, so as to realize the quick connection between cross bar 40 and edge support bar 30, and then be easy to projection screen group The assembly and disassembly of part 100, moreover, transport is also allowed for carrying using Collapsible structure using edge support bar 30, it is user-friendly, Improve Consumer's Experience.The projection screen component 100 have it is simple in construction, be convenient to mount and dismount, be easy to carry, using it is flexible the characteristics of, It without using instrument in assembling and dissembling process, can both simplify assembling process, save the assembly and disassembly time, laborsaving purpose can be reached again, Improve Consumer's Experience.

In some embodiments of the present utility model, fix bar 31 is provided with fix bar stopper slot 31a, fixed cover 32 are provided with limited block 32a, and limited block 32a is plugged in motion bar stopper slot 33a to fix by fix bar stopper slot 31a Fixed pole 31 and the relative position of motion bar 33.

Specifically, as shown in figure 3, fix bar 31 is generally formed into hollow pipe, fixing pipe is provided with fix bar stopper slot 31a, the inwall of fixed cover 32 is provided with the limited block 32a being adapted to fix bar stopper slot 31a, and fixed cover 32 is set in fix bar 31 Outside on and limited block 32a be located in fix bar stopper slot 31a, motion bar 33 be provided with multiple activities arranged spaced apart Bar stopper slot 33a, the limited block 32a that motion bar 33 is set on the inner side of fix bar 31 and fixed cover 32 can pass through fix bar Stopper slot 31a is adapted to motion bar stopper slot 33a, so that when user needs adjustment edge 30 length of support bar, by drawing Dynamic motion bar 33 realizes that motion bar 33 stretches out or retracted relative to fix bar 31, and passes through fixed cover 32 after adjustment good position Limited block 32a and fix bar stopper slot 31a, motion bar stopper slot 33a spacing mating reaction, realize and fix, and then cause group The simple in construction, easy to operate of part, Consumer's Experience are good.

Wherein, the two ends end of cross bar 40 is respectively equipped with movable component 60, and connection-peg 41 is connected with phase with movable component 60 To the telescopic action of cross bar 40.

Specifically, as shown in Figures 1 and 2, the two ends (i.e. left end and right-hand member) of cross bar 40 are respectively equipped with movable component 60, The right-hand member of right-hand member movable component 60 is connected with the left end of right connection-peg 41, the left end of right-hand member movable component 60 and the right side of cross bar 40 End is fixedly connected, and the left end of left end movable component 60 is connected with the right-hand member of left connection-peg 41, the right-hand member of left end movable component 60 It is fixedly connected with the left end of cross bar 40, right-hand member movable component 60 can shrink to the left vertically, and left end movable component 60 can edge Axially shrink to the right, so as to drive right-hand member connection-peg 41 and left end connection-peg 41 axially retractable, and then adjust two connection-pegs The distance between 41 opposite two ends, to realize rapid-assembling/disassembling.

Wherein, movable component 60 includes sleeve pipe 61, movable part 62 and fixing nut 63, and sleeve pipe 61 is plugged on the end of cross bar 40 Portion, movable part 62 is along the axially extending of sleeve pipe 61 and is telescopically located in sleeve pipe 61, and movable part 62 is provided with boss 62a, living One end of moving part 62 is stretched out sleeve pipe 61 and is connected with connection-peg 41, and fixing nut 63 is connected with the other end of movable part 62 with by activity Part 62 is fixed in sleeve pipe 61.

Specifically, as shown in Figure 2 and Figure 4, movable component 60 is main by 63 groups of sleeve pipe 61, movable part 62 and fixing nut Into the two ends end of cross bar 40 is provided with the chamber extended along its length, and sleeve pipe 61 is generally formed into tubular structure, sleeve pipe 61 One end radial dimension is more than the internal diameter of the chamber of the end of cross bar 40, so that sleeve pipe 61 can only support phase with the end of cross bar 40 Even, movable part 62 is axially set in sleeve pipe 61 along cross bar 40, and movable part 62 is provided with boss 62a, the one of right-hand member movable part 62 End (right-hand member of movable part 62 as shown in Figure 4) is stretched out sleeve and is fixedly connected with right-hand member connection-peg 41, a left side for right-hand member movable part 62 Hold axially extending sleeve and be threadedly coupled with fixing nut 63, the left end of left end movable part 62 stretches out sleeve and left end connection-peg 41 are fixedly connected, and the axially extending sleeve of right-hand member of left end movable part 62 and are threadedly coupled with fixing nut 63, so as to avoid dress Timing left end movable part 62 and right-hand member movable part 62 depart from left end sleeve and right-hand member sleeve, so that fixed column is limited into sleeve pipe 61 It is interior, it is to avoid movable part 62 departs from sleeve pipe 61.

Preferably, the mode such as it is connected through a screw thread between sleeve pipe 61 and the chamber of cross bar 40 to be fixedly connected, so as to pass through work Dynamic component 60 drive connection-peg 41 realize and edge motion bar 33 motion bar stopper slot 33a between cooperation and disengaging.

Alternatively, projection screen component 100 also includes spring 64, and spring 64 is set on movable part 62, and the two of spring 64 End is respectively only to one end end face and boss 62a of sleeve pipe 61.

Specifically, as shown in figure 4,64 sets of spring is set on movable part 62 vertically, the two ends of spring 64 are only supported respectively The left side of sleeve pipe 61 and boss 62a, so as to recover deformation behavior after stress using spring 64, simplify installation process, reach Labour-saving purpose.

Specifically, when assembling cross bar 40 with edge support bar 30, movable component 60 and connection-peg 41 are arranged on first In the chamber at the two ends of cross bar 40, then one section of connection-peg 41 is inserted to the motion bar stopper slot 33a of side, then holds cross bar 40 Compress downwards so that movable part 62 is moved inward relative to cross bar 40 along sleeve axial direction, now, spring 64 is compressed to be made With, in contraction state, then the connection-peg 41 of opposite side is directed to the motion bar stopper slot 33a of opposite side, cross bar 40 is unclamped, The automatic characteristic for recovering deformation, realizes the motion bar stopper slot of connection-peg 41 and edge support bar 30 after being deformed using spring 64 33a cooperation, and then assembling is realized, it is time saving and energy saving.

Wherein, cross bar 40 and upper support bar 20 are respectively formed as telescopic rod.

Specifically, as depicted in figs. 1 and 2, upper support bar 20 and cross bar 40 are all formed as telescopic rod, so as to pass through regulation Cross bar 40 and upper support bar 20 can realize the size of the width of projection screen component 100 (left and right directions as shown in Figure 2) Adjustment, the height of projection screen component 100 can be realized by adjusting left side edge support bar 30 and right side edge support bar 30 The adjustment of the size in direction (above-below direction as shown in Figure 2), and then the purpose of the adjustment size of projection screen 50 is realized, so as to pass through Adjust space-consuming, adapt to the use of different places, greatly improve the convenience used.

Preferably, upper support bar 20 and cross bar 40 include fix bar, fixed cover and motion bar, and fix bar is generally formed into Hollow pipe, fixing pipe is provided with fix bar stopper slot, and fixed cover inwall is provided with the limited block being adapted to fix bar stopper slot, Gu It is set in calmly on the outside of fix bar and limited block is located in fix bar stopper slot, motion bar is provided with multiple cloth spaced apart The motion bar stopper slot put, the limited block that motion bar is set on the inner side of fix bar and fixed cover can be spacing through fix bar Groove is adapted to motion bar stopper slot, so that when user needs the length of adjustment cross bar 40 and upper support bar 20, passing through and pulling Motion bar realizes that motion bar stretches out or retracted relative to fix bar, and after adjustment good position by the limited block of fixed cover with it is solid The spacing mating reaction of fixed pole stopper slot, motion bar stopper slot, realizes and fixes, and then causes the structure of projection screen component 100 Simply, realize that projected area adjustment, easy to operate, Consumer's Experience are good.

Alternatively, projection screen component 100 also includes adapter 70, and adapter 70 is located at edge support bar 30 and upper support To connect edge support bar 30 and upper support bar 20 between bar 20.

Specifically, as depicted in figs. 1 and 2, adapter 70 has at least two suit portions, at least the two of each adapter 70 Individual suit portion one end respectively with edge support bar 30, one end suit of upper support bar 20, i.e., two edge support bars 30 it is upper End is connected by two adapters 70 respectively with the two ends (left end and right-hand member as shown in Figure 1) of upper support bar 20, so as to protect While demonstrate,proving connection reliability, it is easy to dismount, improves Consumer's Experience.

Alternatively, taken between curtain 50 and edge support bar 30, upper support bar 20 and cross bar 40 by hook or nylon Button connection.By setting hook or velcro to ensure curtain 50 and edge support bar 30 and upper branch on curtain 50 Connection reliability between the framework of the formation of strut 20 simultaneously, simplifies structure, is easy to assembling, it is ensured that effective exhibition of projection screen 50 Show area.

Alternatively, curtain 50 includes multiple, multiple various sizes of curtains 50 and edge support bar 30 and upper support bar 20 The framework of formation coordinates to adjust projection size.

Specifically, by being set to multiple various sizes of curtains 50, thus with two edge support bars 30, upper support bars 20 and the regulation elongation of cross bar 40 after the frame size that is formed coordinate, the displaying to different size curtains 50 is realized, so that suitable Answer the requirement of different fields of employment, it is ensured that projection effective area, improve Consumer's Experience.

1 to Fig. 4 specifically describe the optical projection system according to the utility model second aspect embodiment below in conjunction with the accompanying drawings.

Projector equipment 80, projection bracket 90 are included and according to above-mentioned implementation according to the optical projection system of the utility model embodiment Rechargeable battery is provided with the projection screen component 100 of example, projector equipment 80, projector equipment 80 is detachably arranged in the projection branch On frame 90.

Due to there is above-mentioned technique effect, therefore, root according to the projection screen component 100 of the utility model above-described embodiment According to optical projection system also simple in construction, the assembly and disassembly with corresponding technique effect, the i.e. optical projection system of the utility model embodiment Facilitate, be easy to carry, using flexible, the projection size of curtain 50 can be adjusted to be adapted to different operating place.

Specifically, by the way that edge support bar 30 is set into Collapsible structure, and distinguish in the two ends end of cross bar 40 Provided with connection-peg 41, by the mating reaction between connection-peg 41 and motion bar stopper slot 33a, so as to realize cross bar 40 and edge Quick connection between support bar 30, and then it is easy to the assembly and disassembly of projection screen component 100, moreover, being adopted using edge support bar 30 Transport is also allowed for Collapsible structure with carrying, it is user-friendly, improve Consumer's Experience.In addition, by projector equipment 80 Interior setting rechargeable battery, can be used in order to outdoor projection equipment 80, simplify power-supply wiring.Therefore, the optical projection system has knot Structure is simple, be convenient to mount and dismount, be easy to carry, using it is flexible the characteristics of, without using instrument in assembling and dissembling process, can both simplify dress With process, the assembly and disassembly time is saved, laborsaving purpose can be reached again, Consumer's Experience is improved.

According to the projection screen component 100 of the utility model embodiment and optical projection system other constitute and operate for It is knowable for one of ordinary skill in the art, is not described in detail herein.

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than indicate or imply signified device or Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model System.

In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two It is individual, three etc., unless otherwise specifically defined.

In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be Mechanically connect or electrically connect or can communicate each other；Can be joined directly together, the indirect phase of intermediary can also be passed through Even, can be two element internals connection or two elements interaction relationship, unless otherwise clear and definite restriction.For this For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.

In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature Can be that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, first is special Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area Technical staff the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification can be entered Row is combined and combined.

Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model It is interior above-described embodiment to be changed, changed, replaced and modification.

Claims (10)

1. a kind of projection screen component, it is characterised in that including：

Base；

Upper support bar, the upper support bar extends generally in a horizontal direction；

Two edge support bars, each edge support bar includes fix bar, fixed cover and motion bar, the fix bar respectively One end be connected with the two ends of the upper support bar, the fixation be set on the other end of the fix bar and with the fixation Bar is connected, and the motion bar is provided with multiple motion bar stopper slots arranged spaced apart, one end of the motion bar and the bottom Seat socket connection and the other end be telescopically connected with the fix bar；

Cross bar, the two ends of the cross bar are respectively equipped with the connection-peg suitable for coordinating with the motion bar stopper slot, the cross bar Axial length is not more than the distance being spaced between the motion bar of two edge support bars, two connection-pegs it is opposite two The distance between end is more than the distance being spaced between the motion bar of two edge vertical tubes, and two connection-pegs are along the horizontal stroke The axial direction of bar is scalable to be connected with the motion bar stopper slot；

Curtain, the curtain is removably mounted in the framework that the edge support bar is formed with the upper support bar.

2. projection screen component according to claim 1, it is characterised in that the fix bar is spacing provided with fix bar Groove, the fixed cover is provided with limited block, and it is spacing that the limited block is plugged on the motion bar by the fix bar stopper slot With the fixed fix bar and the relative position of the motion bar in groove.

3. projection screen component according to claim 1, it is characterised in that the two ends end of the cross bar is respectively equipped with work Dynamic component, the connection-peg is connected with the movable component with relatively described cross bar telescopic action.

4. projection screen component according to claim 3, it is characterised in that the movable component includes：

Sleeve pipe, described sleeve pipe is plugged on the end of the cross bar；

Movable part, the movable part is along the axially extending of described sleeve pipe and is telescopically located in described sleeve pipe, the movable part Boss is provided with, one end of the movable part is stretched out described sleeve pipe and is connected with the connection-peg；

Fixing nut, the fixing nut is connected the movable part being fixed on described sleeve pipe with the other end of the movable part It is interior.

5. projection screen component according to claim 4, it is characterised in that also include：Spring, the spring is set in institute State on movable part, the two ends of the spring are respectively only to one end end face and the boss of described sleeve pipe.

6. projection screen component according to claim 1, it is characterised in that the cross bar and upper support bar difference shape As telescopic rod.

7. projection screen component according to claim 6, it is characterised in that also include：Adapter, the adapter is located at To connect the edge support bar and the upper support bar between the edge support bar and the upper support bar.

8. projection screen component according to claim 6, it is characterised in that affiliated curtain and the edge support bar, institute State between upper support bar and the cross bar by hook or velcro connection.

9. projection screen component according to claim 6, it is characterised in that the curtain includes multiple, multiple different chis The framework of very little curtain and the edge support bar and upper support bar formation coordinates to adjust projection size.

10. a kind of optical projection system, it is characterised in that including：

Rechargeable battery is provided with projector equipment, the projector equipment；

Projection screen component according to any one of claim 1-9；

Projection bracket, the projector equipment is detachably arranged on the projection bracket.