CN201654435U - Projection screen - Google Patents
Projection screen Download PDFInfo
- Publication number
- CN201654435U CN201654435U CN 201020172649 CN201020172649U CN201654435U CN 201654435 U CN201654435 U CN 201654435U CN 201020172649 CN201020172649 CN 201020172649 CN 201020172649 U CN201020172649 U CN 201020172649U CN 201654435 U CN201654435 U CN 201654435U
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- China
- Prior art keywords
- contiguous block
- projection screen
- aluminum pipes
- snap close
- joint
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- 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
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Abstract
The utility model discloses a projection screen, which comprises a screen, supporting legs and a foldable frame. The foldable frame is quadrilateral, each cross edge thereof consists of at least two aluminum pipes, each two adjacent aluminum pipes are hinged via an embedded joint, and each two adjacent edges of the foldable frame are hinged. By aid of the technical scheme, each cross edge of the foldable frame consists of at least two aluminum pipes, and each two adjacent aluminum pipes are hinged via an embedded joint and turned inwards or outwards. The embedded joints which are disposed in the aluminum pipes are not easy to be damaged, thereby increasing durability of the embedded joints. Compared with the prior art, the projection screen solves the problem that durability of joints is reduced because the joints used for connecting each two adjacent aluminum pipes are exposed to the external of the aluminum pipes.
Description
Technical field
The utility model relates to the projector equipment technical field, more particularly, relates to a kind of projection screen.
Background technology
Along with the development of video frequency tool, projector and projection screen are used more and more widely in people's daily life, and the trend that replaces TV is gradually arranged.At present, the folding projection screen has replaced traditional suspension type projection screen and console mode projection screen gradually.
The folding projection screen is made up of curtain, foldable frame and two supporting legs.Curtain is fixed on the foldable frame by snap-fastener, and foldable frame is connected with two supporting legs by bolt.Foldable frame is quadrilateral, and each limit is made up of at least two sections aluminum pipes, and is hinged by the joint between adjacent two sections aluminum pipes, and adjacent two sections aluminum pipes inwardly or are outwards turned down.This joint is exposed to the outside of aluminum pipe, causes the joint to be run into easily, and joint injury causes the durability in joint to reduce.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of projection screen, owing to be used for connecting the outside that the joint of adjacent two sections aluminum pipes is exposed to aluminum pipe, causes the low problem of durability in joint to solve in the prior art.
The utility model provides a kind of projection screen, comprising: curtain, supporting leg and foldable frame is characterized in that, described foldable frame is quadrilateral, horizontal edge is made up of at least two sections aluminum pipes, and is hinged by built-in joint between adjacent two sections aluminum pipes, hinged between adjacent each limit.
Preferably, described built-in joint comprises: first contiguous block, second contiguous block, snap close, retaining element and spring; Wherein:
Described first contiguous block and described second contiguous block are fixed in the two adjacent aluminum pipes by described retaining element respectively, and described first contiguous block and described second contiguous block are hinged;
In described first contiguous block cavity is arranged, be provided with a fixture in the cavity, described snap close links to each other with fixture by its hole that has, and be that rotate at the center with the fixture, this snap close one end contacts with the inwall of described first contiguous block by described flexible member, the other end is provided with buckle, between hole and buckle, be provided with projection, when two adjacent aluminum pipes are in same surface level, this effect that latches in flexible member is down around fixture rotation, buckle be stuck in be provided with second contiguous block with the suitable draw-in groove of this buckle in, guarantee that snap close pins second contiguous block, simultaneously, projection exposes to aluminum pipe.
Preferably, described built-in joint also comprises: Connection Element; Described first contiguous block and described second contiguous block are hinged by Connection Element.
Preferably, described Connection Element and described first contiguous block or described second contiguous block weld together.
Preferably, described retaining element is rivet, pin or screw; Described flexible member is spring or stage clip.
Preferably, described first contiguous block is to be starting material with cast steel, with the contiguous block of lost wax process making.
Preferably, described snap close is to be starting material with cast steel, with the snap close of lost wax process making.
Preferably, described supporting leg comprises front leg strut, rear support leg and prolongs the main supporting leg that forms by the aluminum pipe of foldable frame that described front leg strut and described rear support leg are hinged with described main supporting leg respectively.
Preferably, described projection screen also comprises the bindiny mechanism that is made up of master link and secondary connecting link;
One end of described master link is connected with main supporting leg by rotating shaft, and the other end is connected with an end of described secondary connecting link by rotating shaft;
The other end of described secondary connecting link is connected with front leg strut or rear support leg by rotating shaft.
Preferably, described curtain is fixed on the described foldable frame by snap-fastener.
Use technique scheme, the horizontal edge of foldable frame is made up of at least two sections aluminum pipes, and is hinged by built-in joint between adjacent two sections aluminum pipes, makes adjacent two sections aluminum pipes inwardly or outwards turn down.Because built-in joint places in the aluminum pipe,, improve the durability in built-in joint so built-in joint is not easy to be damaged.Compared with prior art, this programme has solved owing to be used for connecting the outside that the joint of adjacent two sections aluminum pipes is exposed to aluminum pipe, causes the low problem of durability in joint.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing in the utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of projection screen that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the structural representation of the foldable frame among Fig. 1;
Fig. 3 is the structural representation in the built-in joint among Fig. 2;
Fig. 4 is the structural representation of built-in joint lockup state shown in Figure 3;
Fig. 5 is the structural representation of built-in joint open mode one shown in Figure 3;
Fig. 6 is the structural representation of built-in joint open mode two shown in Figure 3;
Fig. 7 closes up the structural representation of state one for built-in joint shown in Figure 3;
Fig. 8 closes up the structural representation of state two for built-in joint shown in Figure 3;
Fig. 9 is the structural representation of the supporting leg among Fig. 1;
Figure 10 is the structural representation of the bindiny mechanism among Fig. 9.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills belong to protection domain of the present utility model not making the every other embodiment that is obtained under the creative work prerequisite.
See also Fig. 1 and Fig. 2.The structural representation of a kind of projection screen that Fig. 1 provides for the utility model embodiment, Fig. 2 is the structural representation of the foldable frame among Fig. 1.Wherein:
1 is foldable frame, and 2 is curtain, and 3 is supporting leg, and 11 is aluminum pipe, and 12 is built-in joint.
121 is first contiguous block, and 122 is second contiguous block, and 123 is snap close, and 124 is retaining element, and 125 is fixture, and 126 is Connection Element, and 127 is flexible member.
First contiguous block 121 and second contiguous block 122 are fixed in adjacent two sections aluminum pipes 11 by retaining element 124 respectively, and first contiguous block 121 and second contiguous block 122 are hinged.In first contiguous block 121 cavity is arranged, be provided with a fixture 124 in the cavity.Snap close 123 links to each other with fixture 124 by its hole that has, and be that rotate at the center with fixture 124, these snap close 123 1 ends contact with the inwall of first contiguous block 121 by flexible member 127, the other end is provided with buckle, between hole and buckle, be provided with projection, when adjacent two sections aluminum pipes 11 are in same surface level, this snap close 123 rotates around fixture 124 under the effect of flexible member 127, in the draw-in groove that buckle is stuck in second contiguous block 122 is that be provided with and this buckle is suitable, guarantee that snap close 123 pins second contiguous block 122, simultaneously, projection exposes to aluminum pipe 11.Simply introduce the principle of work in built-in joint 12 below.
When adjacent two sections aluminum pipes 11 are in same surface level, snap close 123 pins second contiguous block 122, built-in joint 12 is in lockup state, its structural representation that is in lockup state as shown in Figure 4, the buckle of snap close 123 is stuck in the draw-in groove of second contiguous block 122, one end of snap close 123 is withstood by flexible member, and snap close 123 remains static.
When adjacent two sections aluminum pipes 11 closed up, the projection of snap close 123 was pressed, and snap close 123 rotates around fixture 124, and buckle withdraws from draw-in groove.At this moment, open in built-in joint 12, and its structural representation as shown in Figure 5.After buckle withdrawed from from draw-in groove, second contiguous block 122 was to inner rotary, and as shown in Figure 6, open fully in built-in joint 12, and aluminum pipe 11 closes up, thereby foldable frame 1 inwardly turns down.
When adjacent two sections aluminum pipes 11 were opened, built-in joint 12 closed up, and its structural representation as shown in Figure 7.Second contiguous block 122 inwardly rotates, and snap close 123 is under the effect of flexible member, around fixture 125 rotations.When built-in joint 12 closed up fully, the draw-in groove of second contiguous block 122 just in time was positioned at the buckle top of snap close 123, under the effect of flexible member 127, the buckle of snap close 123 blocks draw-in groove, second contiguous block 122 is pinned, and at this moment, adjacent two sections aluminum pipes 11 are in same surface level.The structural representation that built-in joint 12 closes up fully as shown in Figure 8.
Among the utility model embodiment, first contiguous block 121 and second contiguous block 122 are hinged by Connection Element 126, and the Connection Element 126 and first contiguous block 121 or second contiguous block 122 weld together, guarantee to relatively rotate between Connection Element 126 and first contiguous block 121 or second contiguous block 122, make operating personnel operate easily.First contiguous block 121 is to be starting material with cast steel, with the contiguous block of lost wax process making.Snap close 123 is to be starting material with cast steel, with the snap close of lost wax process making.First contiguous block 121 and snap close 123 are starting material with cast steel, have increased the durability in built-in joint 12.Retaining element 124 or Connection Element 126 are rivet, pin or screw.Flexible member 127 is spring or stage clip.
Among the utility model embodiment, first contiguous block 121 pins between second contiguous block, 122, the first contiguous blocks 121 and second contiguous block 122 except the mode of employing snap close 123 by snap close 123, can also adopt other structure.For example: the similar structure that is provided with the latch of button.When adjacent two sections aluminum pipes 11 are in same surface level, the inserted link of latch under the effect of flexible member 127, insert be provided with on second contiguous block 122 with the suitable slotting nose of this inserted link in, to fix second contiguous block 122.
See also Fig. 9.Fig. 9 is the structural representation of the supporting leg among Fig. 1.Wherein:
31 is main supporting leg, and 32 is front leg strut, and 33 is rear support leg, and 34 is brace, and 35 is first rotating shaft.
Main supporting leg 31 is that the aluminum pipe 11 by foldable frame 1 prolongs and forms.Between main supporting leg 31 and the front leg strut 32 and all hinged between main supporting leg 31 and the rear support leg 33.One end of brace 34 is connected with the side of main supporting leg 31 by first rotating shaft 35, and the other end first rotating shaft 35 is connected with the side of front leg strut 32.Brace 34 can freely rotate around first rotating shaft 35, and front leg strut can be got out or draw in, and this gets out the angle that is meant between main supporting leg 31 and the front leg strut 32 is 90 degree.
Stability when guaranteeing that supporting leg 3 gets out, need bindiny mechanism between front leg strut 32 and the main supporting leg 31 and support main supporting leg 31, for example: hook is installed on the front leg strut 32, the hook circle that is complementary with hook is installed on the main supporting leg 31, when supporting leg 3 gets out, hook is suspended on the hook circle that is complementary with it, supports main supporting leg 31, can enough stablize when supporting leg 3 is got out by hook.Among the utility model embodiment, be connected main supporting leg 31 and front leg strut 32 by the bindiny mechanism that forms by master link and secondary connecting link.The structural representation of bindiny mechanism can be with reference to shown in Figure 10.Wherein:
36 is master link, and 37 is secondary connecting link, and 38 is second rotating shaft, and 39 is the 3rd rotating shaft.
One end of master link 36 is connected with the side of main supporting leg 31 by second rotating shaft 38, master link 36 can freely be rotated around second rotating shaft 38, the other end is connected with secondary connecting link 37 by the 3rd rotating shaft 39, makes between master link 36 and the secondary connecting link 37 freely to rotate around the 3rd rotating shaft 39.The other end of secondary connecting link 37 is connected with the side of front leg strut 32 by second rotating shaft 38, and secondary connecting link 37 can freely be rotated around second rotating shaft 38.When front leg strut 32 got out, master link 36 and secondary connecting link 37 supported main supporting leg 31, make main supporting leg 31 relative fixed.When front leg strut 32 draws in, push the 3rd rotating shaft 39 residing connecting links, master link 36 and secondary connecting link 37 rotate around the 3rd rotating shaft 39, and main supporting leg 31 draws in front leg strut 32 is in the same place.
Among the utility model embodiment, the connected mode of main supporting leg 31 and front leg strut 32 is identical in the connected mode on adjacent each limit of foldable frame 1 and the supporting leg 3, so the utility model embodiment is no longer set forth this.
Among the utility model embodiment, main supporting leg 31 is that the aluminum pipe 11 by foldable frame 1 prolongs and forms, therefore, between main supporting leg 31 and the foldable frame 1, be to fix by any securing member between supporting leg 3 and the foldable frame 1, saved assembling or take-down time, solved simultaneously and adopted bolt to be connected the problem of when dismantling, losing easily between existing folding projection screen foldable frame and the supporting leg.
Among the utility model embodiment, curtain 2 is fixed on the foldable frame 1 by snap-fastener.The a plurality of button heads of fixed installation are equipped with the push-button socket that is complementary with button head on foldable frame 1 correspondence position on the curtain 2, during use, button head are installed on the push-button socket that is complementary with it and curtain 2 can be fixed on the foldable frame 1.
Use technique scheme, the horizontal edge of foldable frame 1 is made up of at least two sections aluminum pipes 11, and is hinged by built-in joint 12 between adjacent two sections aluminum pipes 11, guarantees that adjacent two sections aluminum pipes 11 inwardly or outwards turn down.Because built-in joint 12 places in the aluminum pipe 11,, improve the durability in built-in joint 12 so built-in joint 12 is not easy to be damaged.Compared with prior art, this programme has solved owing to be used for connecting the outside that the joint of adjacent two sections aluminum pipes 11 is exposed to aluminum pipe 11, causes the low problem of durability in joint.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment is conspicuous to those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and the corresponding to wide region of features of novelty.
Claims (10)
1. a projection screen comprises curtain, supporting leg and foldable frame, it is characterized in that, described foldable frame is quadrilateral, and horizontal edge is made up of at least two sections aluminum pipes, and is hinged by built-in joint between adjacent two sections aluminum pipes, hinged between adjacent each limit.
2. projection screen according to claim 1 is characterized in that, described built-in joint comprises: first contiguous block, second contiguous block, snap close, retaining element and spring; Wherein:
Described first contiguous block and described second contiguous block are fixed in the two adjacent aluminum pipes by described retaining element respectively, and described first contiguous block and described second contiguous block are hinged;
In described first contiguous block cavity is arranged, be provided with a fixture in the cavity, described snap close links to each other with fixture by its hole that has, and be that rotate at the center with the fixture, this snap close one end contacts with the inwall of described first contiguous block by described flexible member, the other end is provided with buckle, between hole and buckle, be provided with projection, when two adjacent aluminum pipes are in same surface level, this effect that latches in flexible member is down around fixture rotation, buckle be stuck in be provided with second contiguous block with the suitable draw-in groove of this buckle in, guarantee that snap close pins second contiguous block, simultaneously, projection exposes to aluminum pipe.
3. projection screen according to claim 2 is characterized in that, described built-in joint also comprises: Connection Element; Described first contiguous block and described second contiguous block are hinged by Connection Element.
4. projection screen according to claim 3 is characterized in that, described Connection Element and described first contiguous block or described second contiguous block weld together.
5. projection screen according to claim 2 is characterized in that,
Described retaining element is rivet, pin or screw;
Described flexible member is spring or stage clip.
6. projection screen according to claim 2 is characterized in that, described first contiguous block is to be starting material with cast steel, with the contiguous block of lost wax process making.
7. projection screen according to claim 2 is characterized in that, described snap close is to be starting material with cast steel, with the snap close of lost wax process making.
8. according to any described projection screen of claim 1-7, it is characterized in that described supporting leg comprises front leg strut, rear support leg and prolong the main supporting leg that forms by the aluminum pipe of foldable frame that described front leg strut and described rear support leg are hinged with described main supporting leg respectively.
9. projection screen according to claim 8 is characterized in that, described projection screen also comprises the bindiny mechanism that is made up of master link and secondary connecting link;
One end of described master link is connected with main supporting leg by rotating shaft, and the other end is connected with an end of described secondary connecting link by rotating shaft;
The other end of described secondary connecting link is connected with front leg strut or rear support leg by rotating shaft.
10. according to any described projection screen of claim 1-7, it is characterized in that described curtain is fixed on the described foldable frame by snap-fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020172649 CN201654435U (en) | 2010-04-22 | 2010-04-22 | Projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020172649 CN201654435U (en) | 2010-04-22 | 2010-04-22 | Projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201654435U true CN201654435U (en) | 2010-11-24 |
Family
ID=43119679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020172649 Expired - Fee Related CN201654435U (en) | 2010-04-22 | 2010-04-22 | Projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201654435U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104423132A (en) * | 2013-08-23 | 2015-03-18 | 如皋市江海技工学校 | Mobile movie screen support |
| CN107329357A (en) * | 2017-07-25 | 2017-11-07 | 张家港宝视特影视器材有限公司 | Fast folding curtain support |
| CN108713161A (en) * | 2016-02-11 | 2018-10-26 | 麦尔斯顿Av技术有限责任公司 | Folded projection screen |
| CN112485959A (en) * | 2020-12-01 | 2021-03-12 | 北京字节跳动网络技术有限公司 | Foldable curtain |
-
2010
- 2010-04-22 CN CN 201020172649 patent/CN201654435U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104423132A (en) * | 2013-08-23 | 2015-03-18 | 如皋市江海技工学校 | Mobile movie screen support |
| CN108713161A (en) * | 2016-02-11 | 2018-10-26 | 麦尔斯顿Av技术有限责任公司 | Folded projection screen |
| CN108713161B (en) * | 2016-02-11 | 2021-06-25 | 麦尔斯顿Av技术有限责任公司 | Folding projection screen |
| CN107329357A (en) * | 2017-07-25 | 2017-11-07 | 张家港宝视特影视器材有限公司 | Fast folding curtain support |
| CN112485959A (en) * | 2020-12-01 | 2021-03-12 | 北京字节跳动网络技术有限公司 | Foldable curtain |
| CN112485959B (en) * | 2020-12-01 | 2023-02-17 | 北京字节跳动网络技术有限公司 | Foldable curtain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20130422 |