CN103792773A - Locking devices based on projection support - Google Patents
Locking devices based on projection support Download PDFInfo
- Publication number
- CN103792773A CN103792773A CN201410049470.7A CN201410049470A CN103792773A CN 103792773 A CN103792773 A CN 103792773A CN 201410049470 A CN201410049470 A CN 201410049470A CN 103792773 A CN103792773 A CN 103792773A
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- China
- Prior art keywords
- rod
- latching system
- system based
- jacking block
- projection bracket
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Abstract
The invention discloses locking devices based on a projection support. The projection support comprises a foot support, a rod body fixedly installed with the foot support, and a hanging rod located at the top of the rod body, wherein the multiple locking devices are arranged on the rod body and are arranged in a vertical penetrating mode. Each locking device comprises a top wall, a bottom wall and a locking part located between the top wall and the bottom wall, wherein the locking part is provided with a top block at least once, and each locking device further comprises a spanner matched with the top block. The locking devices achieve the locking purpose through an eccentric structure, and are simple in structure, convenient to manufacture, install and detach and good in positioning effect.
Description
Technical field
The present invention relates to shadow casting technique field, relate in particular to a kind of latching system based on projection bracket.
Background technology
Projector is a kind of conventional office equipment in office space, the video display during for meeting or teaching.Conventional projector is mostly used the curtain device of single side; illumination condition under environment for use is had relatively high expectations; conventionally in the brighter situation of surround lighting, needing can be suitable for projected image with the relatively dark dark curtain of color presents; and in the situation that surround lighting is darker the relatively shallow curtain of applicable color, or adopt white bright type curtain more suitable.
General projection screen device, particularly field relocatable projection screen device is all made up of support and curtain volume two parts conventionally, some support liftable regulates height, also some frame bottom is provided with roller, to hang on the version that support eminence pulls out curtain downwards and locates and roll up some as curtain, some is the version that is fixed on support stage casing and upwards pulls out and hang location, certainly also has the versions such as layback location.All this kind all only has relatively single application structure, has caused the multiplex limitation of projection screen device, uses projector to bring trouble to user under different illumination conditions.
In view of this,, for above-mentioned technical matters, be necessary to provide a kind of new latching system based on projection bracket.
Summary of the invention
Technical matters to be solved by this invention is, for above-mentioned deficiency of the prior art, to provide a kind of latching system based on projection bracket exactly, and it is simple in structure, easy to use.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of latching system based on projection bracket, described projection bracket comprises foot support, with the hard-wired body of rod of foot support and be positioned at the peg at body of rod top, the described body of rod is provided with some latching systems, described latching system is for running through up and down setting, comprise roof, diapire and the latch part between roof and diapire, described latch part is provided with jacking block at least one times, and described latching system also comprises the spanner being equipped with a jacking block.
As a further improvement on the present invention, described latch part is hollow setting, and the body of rod is contained in latch part, the setting corresponding with the body of rod of the shape of latch part hollow space.
As a further improvement on the present invention, described jacking block is made as two, lays respectively at body of rod both sides.
As a further improvement on the present invention, described resettlement section is provided with opening in spanner one side, and jacking block is freely movable in described opening.
As a further improvement on the present invention, the handle that described spanner comprises an eccentric block and is connected with eccentric block, the setting that contacts with jacking block of described eccentric block.
As a further improvement on the present invention, described eccentric block is provided with mounting hole, and roof and diapire are provided with axis hole, and described eccentric block is rotated fixing by installation shaft, mounting hole and axis hole.
As a further improvement on the present invention, on described roof and diapire, be provided with extension at opening extended spot, on described extension, correspondence is provided with axis hole.
As a further improvement on the present invention, the medial surface of described jacking block and the corresponding setting of the lateral surface of the body of rod.
As a further improvement on the present invention, described foot support comprise the foot support installation portion that is installed on the body of rod, be fixedly installed in upper rack posts on foot support installation portion, be fixedly installed in the lower end cap of body of rod bottom and be fixedly installed in lower end cap and upper rack posts on lower fulcrum bar.
The invention has the beneficial effects as follows, the latching system based on projection bracket of the present invention is realized snap close object by eccentric structure, simple in structure, manufacture, installation and convenient disassembly, good positioning effect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of projection bracket in the present invention's one specific embodiment.
Fig. 2 is the exploded perspective view of latching system in the present invention's one specific embodiment.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present invention is only described in a schematic way, and therefore it only shows the formation relevant with the present invention.
The invention discloses a kind of latching system based on projection bracket, projection bracket comprises foot support, with the hard-wired body of rod of foot support and be positioned at the peg at body of rod top, the body of rod is provided with some latching systems, latching system is for running through up and down setting, comprise roof, diapire and the latch part between roof and diapire, latch part is provided with jacking block at least one times, and latching system also comprises the spanner being equipped with a jacking block.
Fig. 1 is the structural representation of projection bracket in the present invention's one specific embodiment.
In the present embodiment projection bracket comprise foot support, with the hard-wired body of rod of foot support and be positioned at the peg at body of rod top.
Foot support comprises foot support installation portion 11, be fixedly installed in upper rack posts 12 on foot support installation portion, be fixedly installed in the lower end cap 13 of body of rod bottom and be fixedly installed in lower end cap and upper rack posts on lower fulcrum bar 14.In the present embodiment, the quantity correspondence of upper rack posts 12 and lower fulcrum bar 14 is set to 3, can meet fixing effect, certainly also can be set in other embodiments more than 3.Lower fulcrum bar can further be strengthened fixing to upper rack posts, guarantee the stability of foot support.
The body of rod comprises the outer bar 21 being connected with foot support and the interior bar 22 being connected with outer bar, the mutual sheathed connection of outer bar and interior bar.Wherein, bar and the sheathed place of interior bar are provided with latching system 31 outside.Outer bar and interior pole length can regulate as required, then adopt the first latching system to be fixed, thereby can need to regulate according to different projections the length of the body of rod.
Shown in ginseng Fig. 2, latching system 31 comprises roof 3111, diapire 3112 and the latch part between roof and diapire 3113 in the present embodiment, latch part 3113 is provided with the first jacking block 313 and the second jacking block 314, and latching system also comprises the spanner 312 being equipped with the second jacking block 314.
Latch part 3113 is hollow setting, and the body of rod is contained in latch part 3113, the setting corresponding with the body of rod of the shape of latch part hollow space.On roof 3111 and diapire 3112, correspondence is provided with the perforate corresponding with the body of rod, the body of rod, and whole latching system can be set on the body of rod by perforate.
The first jacking block 313 and the second jacking block 314 lay respectively in latch part 3113, and be positioned at corresponding both sides, in the body of rod inserts latching system time, the first jacking block 313 and the second jacking block 314 are connected to respectively body of rod both sides, in order to strengthen butt effect, the first jacking block 313 and second medial surface of jacking block 314 and the corresponding setting of the lateral surface of the body of rod, while being cylindrical as the body of rod in present embodiment, the medial surface of jacking block is made as corresponding cambered surface, so can make the first jacking block 313 and the second jacking block 314 effectively fit with the body of rod.
Adopt in the present embodiment two jacking blocks can be fixed well the body of rod, the first jacking block also can be set certainly in other embodiments, only realize fixed core by the second jacking block, can reach equally the object of snap close.
Latch part 3113 is provided with opening 31131, the second jacking blocks 314 at the second jacking block 314 places interior freely movable at opening 31131, and opening extended spot is provided with extension 3114, and on extension, correspondence is provided with axis hole 31141.
The handle 3122 that spanner 312 comprises an eccentric block 3121 and is connected with eccentric block 3121, the eccentric block setting that contacts with the second jacking block 314, eccentric block 3121 is provided with mounting hole 3123, and eccentric block 3121 is rotated fixing by installation shaft 315, mounting hole 3123 and axis hole 31141.
In the present embodiment, first latching system is assembled according to said structure, when fixing, the body of rod is inserted in the through hole of latch part, make the first jacking block and the second jacking block lay respectively at body of rod both sides, one end that now the eccentric block radius on spanner is less contacts with the second jacking block, and swing handle connects one end of eccentric block relatively large radius and the second jacking block, now due to wobbler action, the second jacking block moves inward in opening, until fit with the body of rod, now can reach the effect of snap close.
When dismounting, choosing dress handle in the other direction, now the second jacking block can outwards move gradually, and the first jacking block and the second jacking block body of rod of no longer only fitting, has certain gap between the two, now the body of rod can be extracted out from latching system.
Can be found out by above embodiment, the latching system based on projection bracket of the present invention is realized snap close object by eccentric structure, simple in structure, manufacture, installation and convenient disassembly, good positioning effect.
Take above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this invention technological thought, carry out various change and modification completely.The technical scope of this invention is not limited to the content on instructions, must determine its technical scope according to claim scope.
Claims (9)
1. the latching system based on projection bracket, described projection bracket comprises foot support, with the hard-wired body of rod of foot support and be positioned at the peg at body of rod top, the described body of rod is provided with some latching systems, it is characterized in that, described latching system is for running through up and down setting, comprise roof, diapire and the latch part between roof and diapire, described latch part is provided with jacking block at least one times, and described latching system also comprises the spanner being equipped with a jacking block.
2. the latching system based on projection bracket according to claim 1, is characterized in that, described latch part is hollow setting, and the body of rod is contained in latch part, the setting corresponding with the body of rod of the shape of latch part hollow space.
3. the latching system based on projection bracket according to claim 1, is characterized in that, described jacking block is made as two, lays respectively at body of rod both sides.
4. the latching system based on projection bracket according to claim 1, is characterized in that, described resettlement section is provided with opening in spanner one side, and jacking block is freely movable in described opening.
5. the latching system based on projection bracket according to claim 4, is characterized in that, the handle that described spanner comprises an eccentric block and is connected with eccentric block, the setting that contacts with jacking block of described eccentric block.
6. the latching system based on projection bracket according to claim 5, is characterized in that, described eccentric block is provided with mounting hole, and roof and diapire are provided with axis hole, and described eccentric block is rotated fixing by installation shaft, mounting hole and axis hole.
7. the latching system based on projection bracket according to claim 6, is characterized in that, on described roof and diapire, is provided with extension at opening extended spot, and on described extension, correspondence is provided with axis hole.
8. the latching system based on projection bracket according to claim 1, is characterized in that, the setting corresponding with the lateral surface of the body of rod of the medial surface of described jacking block.
9. the latching system based on projection bracket according to claim 1, it is characterized in that, described foot support comprises the foot support installation portion that is installed on the body of rod, be fixedly installed in upper rack posts on foot support installation portion, be fixedly installed in the lower end cap of body of rod bottom and be fixedly installed in lower end cap and upper rack posts on lower fulcrum bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049470.7A CN103792773A (en) | 2014-02-13 | 2014-02-13 | Locking devices based on projection support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049470.7A CN103792773A (en) | 2014-02-13 | 2014-02-13 | Locking devices based on projection support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103792773A true CN103792773A (en) | 2014-05-14 |
Family
ID=50668594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410049470.7A Pending CN103792773A (en) | 2014-02-13 | 2014-02-13 | Locking devices based on projection support |
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| Country | Link |
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| CN (1) | CN103792773A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106617677A (en) * | 2016-11-10 | 2017-05-10 | 浙江捷昌线性驱动科技股份有限公司 | Table frame with table feet easy to assemble |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2793775Y (en) * | 2005-04-16 | 2006-07-05 | 广州美视晶莹银幕有限公司 | Portable projected screen |
| EP1684114A1 (en) * | 2003-10-31 | 2006-07-26 | Izumi-Cosmo Company Limited | Portable screen device |
| CN201097091Y (en) * | 2007-05-22 | 2008-08-06 | 广州美视晶莹银幕有限公司 | Projection screen with convenient lifting supporter |
| CN201196326Y (en) * | 2008-05-12 | 2009-02-18 | 沈伟宏 | Foot stand locking structure |
| CN102927420A (en) * | 2012-10-26 | 2013-02-13 | 张家港市欣达丰机电制造有限公司 | Bracket |
-
2014
- 2014-02-13 CN CN201410049470.7A patent/CN103792773A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1684114A1 (en) * | 2003-10-31 | 2006-07-26 | Izumi-Cosmo Company Limited | Portable screen device |
| CN2793775Y (en) * | 2005-04-16 | 2006-07-05 | 广州美视晶莹银幕有限公司 | Portable projected screen |
| CN201097091Y (en) * | 2007-05-22 | 2008-08-06 | 广州美视晶莹银幕有限公司 | Projection screen with convenient lifting supporter |
| CN201196326Y (en) * | 2008-05-12 | 2009-02-18 | 沈伟宏 | Foot stand locking structure |
| CN102927420A (en) * | 2012-10-26 | 2013-02-13 | 张家港市欣达丰机电制造有限公司 | Bracket |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106617677A (en) * | 2016-11-10 | 2017-05-10 | 浙江捷昌线性驱动科技股份有限公司 | Table frame with table feet easy to assemble |
| CN106617677B (en) * | 2016-11-10 | 2022-08-26 | 浙江捷昌线性驱动科技股份有限公司 | Table frame with easily assembled table legs |
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Application publication date: 20140514 |