CN207529097U - Projection screen - Google Patents
Projection screen Download PDFInfo
- Publication number
- CN207529097U CN207529097U CN201721353340.8U CN201721353340U CN207529097U CN 207529097 U CN207529097 U CN 207529097U CN 201721353340 U CN201721353340 U CN 201721353340U CN 207529097 U CN207529097 U CN 207529097U
- Authority
- CN
- China
- Prior art keywords
- frame
- component
- avulsion
- hub
- projection screen
- 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.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000009432 framing Methods 0.000 claims abstract description 5
- 239000004753 textile Substances 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Endoscopes (AREA)
Abstract
The utility model is related to the projection screen that one kind has a framing (1a d), a textile material may be disposed between the framing.Frame is pivotably coupled to two hubs (3,4), and two hubs may connect to a stent, and middle frame can rotate between expansion and folding position.The hub includes at least once anti-avulsion component (7), and to prevent frame from leaving the folding position, and the hub may be rotated such that the anti-avulsion component of lower part can be removed, and such frame is rotatable for expansion position.This means that when frame (1a, 1c) expansion above all lower frames (1b, 1d) also due to its own gravity and be unfolded.In one embodiment, hub (3,4) includes a frame fixed component (3) and a frame anti-avulsion component (4), and wherein frame fixed component and frame anti-avulsion component is rotatably connected with each other.Frame fixed component (3) may include removal stop section on one (6) so that upper frame (1a) reaches fully expanded position.
Description
Technical field
The utility model is related to a kind of projection screens.
Background technology
Have semispherical projection equipment in the prior art, such as such technology is disclosed in US6128130A.
The problem of maximum in the prior art is that this equipment needs to occupy larger space, and be difficult transport and storage.Such dress
It puts and is usually applicable only to fixing assembling, and be not suitable for carrying in different location.
Therefore, a purpose of the utility model is to provide a kind of foldable projection screen.
Utility model content
The utility model is related to a kind of projection screens, and including a framing, a kind of textile material can be set to the frame
Between, wherein the frame is revolvably connected to two hubs, two hub is connected to a stent, wherein the frame can be unfolded
It is rotated between folding position, the hub includes at least one prevention frame and leaves the lower anti-avulsion component of folding position and the hub
The lower anti-avulsion component disengaging configuration can be rotated such that so as to which frame can be rotated to expanded position.When upper frame is unfolded,
This causes all lower frames to be unfolded in a favourable manner due to own wt.
Further, two hub includes a frame fixed component and a frame anti-avulsion component, said frame fixed component
It is mutually revolvably connected with frame anti-avulsion component.
Further, the frame fixed component includes removal stop section on one, is reached when topmost frame is fully deployed
Removal stop section on this, and the effect frame fixed component by being generated at this to removal stop section on described is relative to frame
Frame anti-avulsion component is rotated so that lowest part frame passes through the lower anti-avulsion component.
Further, in a preferred embodiment, the frame fixed component includes frame locking device for will most
External frame is locked in the position being fully deployed.
Further, the frame fixed component can with by rotational locking device with one in several fixed angle positions
It is a to be fixed to the frame anti-avulsion component.
Further, the frame anti-avulsion component includes a stent receiving portion, for accommodating the column on stent.
Description of the drawings
Attached drawing 1 shows the exploded view of the hub with frame that the utility model is seen from inside.
Attached drawing 2 shows the exploded view of the hub with frame of the utility model externally.
Attached drawing 3 shows the hub with frame in completely collapsed position.
Attached drawing 4 shows the hub of upper frame portion expansion.
Attached drawing 5 shows the hub that upper frame is fully deployed.
Attached drawing 6 shows hub of the upper and lower part frame in fully expanded position.
Attached drawing 7 has the hub of frame when showing and turning to user oriented position.
Specific embodiment
Fig. 1 shows the hub 3-4 according to the present utility model for having frame 1a-d seen from inside.This has frame
Hub is intended to be used together with two hubs to be maintained to the stent of a position above floor, wherein two hubs toward each other and
It is mutually parallel.One framing 1a-d extends between hub.Stent can be folded so that hub is close between each other, and between two hubs
Frame then form substantially U rows.Stent can be also expanded to using position, and two hubs are still mutually flat toward each other at this time
Row, but mutual distance is farther, in this way, frame forms substantially semi-circular component.
Fabric or textile material are provided between frame, this so that the distance between adjacent frame is as large as possible.Cloth
Material can be folded, while frame is also folded so that their one another edges are against edge.It is not illustrated here stent, but stent
For keeping the hub one suitable position in side on the ground.Cloth material forms an approximately hemispheric projection screen.
Hub 3-4 includes a frame fixed component 3 and frame anti-avulsion component 4, is typically what is be rotatably mounted, but
In exploded view, they are separately depicted to become apparent from display structure details.Frame fixed component 3 is a plane,
And the edge with a frame shape, middle frame 1a-d are rotatably fixed along the edge.Frame is non-loaded, plane
, it is close and extend in parallel can be folded into one another edge for substantially rectangular component.Frame has different length,
Wherein longest frame be located at it is most intermediate, it is shortest be located at outermost.Outermost frame 1a-b is harder than other frames
Gu the lateral frame of middle and upper part is labeled as 1a, lower outside Framework Mark is 1b.When intermediate frame is fixed at it by rotation
Fixed point nearby when terminating, outermost frame along being extended towards the opposite direction of the main extending direction of frame, and
Upper outside frame ends are marked as 8a, and lower outside frame ends are marked as 8b.
Hub is detachably installed by way of as shown in decomposition view, therefore all frames can surround oneself
Fixed point rotates.The frame 1a, 1c of top half can be rotated up, and the frame 1b of lower half portion, 1d can be rotated down, simultaneously
Due to being unfolded downward from Beijing South Maxpower Technology Co. Ltd, so they constitute a hemispherical.Frame anti-avulsion component 4 is used to prevent lower half portion frame
Since dead weight is fallen, rotatably it is fixed near axis 5 with frame fixed component 3.Frame anti-avulsion component includes one
Plane is extended towards the major part of the lateral surface of frame fixed part, i.e., towards the direction side of the second hub, but not
Reach frame.Frame anti-avulsion component further includes anti-avulsion component 7, and the lower anti-avulsion component is with frame anti-avulsion component angle in straight
Angle.Anti-avulsion component 7 is arranged to the top edge of adjacent lower frame 1b exterior sections 8b under frame.Anti-avulsion component passes through under frame
This mode prevents the outer framework of lower part from rotating downward.Anti-avulsion component further prevents frame and entire frame under frame as a result,
Frame fixed component 3 is rotated down due to dead weight.
When frame is launched into spherical shape, need to can be manually rotated upper outside frame 1a upwards, and cloth is with frame
Top rest part 1c is rotated up and Automatic-expanding.Expansion process is more clearly from shown in Fig. 3-6.Two external frames exist
The end 8a-b of frame fixed part is respectively provided with slightly angled end due to being squeezed towards the elasticity of frame fixed part.
Elastic ends, which have, is set to top 9a and the bar on lower part 9b heads.Bar stretches to frame fixed part and squeezes the portion.It is logical
Cross 9a, 9b can bar be extracted certain position outward so that their no longer extruded frame fixed parts.When the outer side frame on top
Frame reaches that its highest is external, the bar at the head 9a of topmost reach the upper frame lock hole 10a of frame lock part and by
Spring effect drives it into the hole, so as to which top outer framework is locked position.
Frame and frame fixed component then can further be rotated so that the outer framework extruding of topmost is set to frame
The top anti-avulsion component 6 of fixed component top edge.External 8a after the top anti-avulsion component 6 and frame folding with top outer framework
It is parallel and at an angle with the direction of the lower anti-avulsion component same direction with frame fixed component court, that is to say, that out of hemisphere
Portion is outwardly.When the outer framework of topmost squeezes the edge of top anti-avulsion component 6 so that entire frame fixed component is relative to frame
Frame anti-avulsion component 4 rotates.The outer framework end 8b of lower part leaves lower part anti-avulsion part, such lower part outer framework due to its own gravity and
It is rotated down.Then with the lower part, outer framework is rotated down other lower half frame 1d.With all lower frame 1b, 1d is downward
Expansion, the bar positioned at lower part 9b heads reach lower frame lock hole 10b and enter the hole by spring effect driver, so as to
Lower part outer framework is locked position.
As all frames are all fully deployed, so as to which the frame forms a hemispherical.One is formed between frame
A smooth hemisphere, can projected image on it.Entire hemisphere can be rotated and with desired angle after the expansion
It is fixed.The process is more clearly from shown in the figure 7.At axis 5,4 quilt of frame fixed component 3 and frame anti-avulsion component
It is rotatably attached, also sets up a rotatable arm 11 in addition.Arm stretch to frame fixed part and one end towards axis with
Frame fixed component is in a bending angle.There is a third head 12 for having column in the end.The column elasticity sets and squeezes
Press box frame fixed component.It may be such that column is lifted from frame fixed component by the head.
Along a part for the circle centered on axis 5, it is provided with a round 13.Column positioned at third head 12 is generally positioned
One of them in this some holes 13.Entire hemisphere can be rotated now so that reach frame across the bar of one in this some holes
Corresponding unique hole 14 on frame anti-avulsion component 4, and relative to frame anti-avulsion component, latch frame is fixed at a certain angle
Component.Pass through pull-up third head 12 so that arm can rotate, so as to make another hole 13 of column in frame fixed component solid
It is fixed.Later, frame fixed component can arrive again at frame relative to the column that frame anti-avulsion component is rotated up on third head
Hole 14 and device at anti-avulsion component are installed with another angle.
When hemisphere is folded, released by will be lifted from the hole at frame anti-avulsion component in the column on third head
Arm 11 is put, entire hemisphere rotates back to normal position.Later, the column at head portion and head portion 9a-9b is released, so as to outside both ends
The rotatable withdrawal of frame, other frames, which are also followed by, to be retracted.Other frames 1a, 1c keep folding position due to conducting oneself with dignity, and under
Portion's frame is fixed by the outer framework of lower part.The end 8b of lower part outer framework 1b arrives first at the lower part removal stop section being slightly tilted
Part, and slided on the sloping edge before it decrease beyond bottom anti-avulsion component.
Fig. 2 shows the partial exploded views of the hub for having frame of the utility model externally.Herein in addition to showing
It is parallel to other than the part of the frame anti-avulsion component of frame fixed component extension, further it is shown that a stent receiving portion 15-18,
The position that entire hemisphere is located above floor is used to support for accommodating bar of the cross section for square, the stent on stent.
Stent receiving portion 15-18 15-16, it is rectangular with the part that is extended in parallel in frame anti-avulsion component with frame fixed component,
And it extends parallel to each other, the column on stent is then contained between the collateral support part.Further, one in portion supported on both sides
Also there are two the components 17,18 rectangular with the collateral support part for tool.One 18 in these components is together with the support member of side
A part for the pipe of encirclement bar is formed, and another forms lid 17, and whole device is prevented to slip over stent receiving portion downwards.
Fig. 3 shows the hub for having frame in completely collapsed position.Two components of wheel hub, 3 He of frame fixed component
Frame anti-avulsion component 4 is rotatably attached in figure, and all frames all prolong from the fixed point of frame fixed component
Extend to the second hub being not shown in figure.Whole device is held in place by the stent with column being not shown in figure, one of column
It is inserted into the stent receiving portion of hub, from the point of view of observer's angle, which is located at the distal end of hub.Upper frame 1a,
1c is since own wt is located at a position and leans against in lower frame.Lower half frame 1d one another edges are adjacent, lean against outside lower part
On frame 1b, and lower part outer framework 1b is in the position for being locked in lower anti-avulsion component 7.
Attached drawing 4 shows the hub of upper frame portion expansion.In this case, top outer framework has been unfolded centainly
Distance and with folding position before into 45 degree of angles.Due to the presence of fabric, three in first half frame 1c with
The expansion of top outer framework and be unfolded, the fabric is arranged between frame, but is not shown in the figure.
Attached drawing 5 shows the hub that upper frame is fully deployed.Top outer framework is rectangular with resting position at this time, head portion
Column at 9a is caught in upper frame lock hole 10a.The frame on currently all top is locked in position.
Attached drawing 6 shows the hub that upper and lower part frame is fully deployed.This position is by the way that top outer framework is upward
Portion's removal stop section 6 squeezes what is reached, in this way so that frame fixed component is forced to rotate relative to frame anti-avulsion component,
So as to lower part outer framework 1b end 8b pass through lower anti-avulsion component 7, when the above-described situation occurs, all lower frame 1b, 1d by
In own wt to whereabouts, the column at head portion 9b is locked in the frame lock hole 10b of lower part, and all frames are locked now
The position being fully deployed has been scheduled on, has constituted a hemispheric skeleton.
Attached drawing 7 shows the hub for having frame when turning to towards user location.The position is by rotating entire hemisphere
So that third head 12 reaches the hole 14 at frame anti-avulsion component 4 so that entire hemisphere latched position in a selected direction
Come what is reached.Direction be by be most suitable for user in a manner of come it is selected, this depend on height and desired direction of observation.
Claims (6)
1. a kind of projection screen, including a framing (1a-d), a kind of textile material can be set between the frame, wherein institute
It states frame and is revolvably connected to two hubs (3-4), two hub is connected to a stent, wherein the frame can be unfolded and fold
It is rotated between position,
It is characterized in that, the hub, which includes at least one prevention frame, leaves the lower anti-avulsion component (7) of folding position and the hub
The lower anti-avulsion component disengaging configuration can be rotated such that so as to which frame can be rotated to expanded position.
2. projection screen according to claim 1, which is characterized in that two hub (3-4) includes a frame fixed component
(3) it is mutually revolvably connected with a frame anti-avulsion component (4), said frame fixed component and frame anti-avulsion component.
3. projection screen according to claim 2, which is characterized in that the frame fixed component (3) includes anti-avulsion on one
Component (6), reaches anti-avulsion component on this when topmost frame (1a) is fully deployed, and by this on described only
The effect that de- component generates causes the frame fixed component (3) to be rotated relative to frame anti-avulsion component (4) so that most lower
Portion's frame (1b) passes through the lower anti-avulsion component.
4. the projection screen according to Claims 2 or 3, which is characterized in that the frame fixed component (3) is including frame lock
Device (9a-b, 10a-b) is determined for outermost frame (1a, 1b) is locked in the position being fully deployed.
5. projection screen according to claim 4, which is characterized in that the frame fixed component (3) can pass through rotation lock
Determine device (11-14) and the frame anti-avulsion component (4) is fixed to one in several fixed angle positions.
6. projection screen according to claim 5, which is characterized in that the frame anti-avulsion component (4) is held including a stent
Portion (15-18) is received, for accommodating the column on stent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721353340.8U CN207529097U (en) | 2017-10-19 | 2017-10-19 | Projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721353340.8U CN207529097U (en) | 2017-10-19 | 2017-10-19 | Projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207529097U true CN207529097U (en) | 2018-06-22 |
Family
ID=62568926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721353340.8U Expired - Fee Related CN207529097U (en) | 2017-10-19 | 2017-10-19 | Projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207529097U (en) |
-
2017
- 2017-10-19 CN CN201721353340.8U patent/CN207529097U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200414 Address after: Swedish narka Patentee after: Camino Ltd. Address before: Swedish narka Patentee before: KAMANIO CARE PRODUCTS Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 |