CN103791209A - Positioning device of projection support - Google Patents
Positioning device of projection support Download PDFInfo
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- CN103791209A CN103791209A CN201410050386.7A CN201410050386A CN103791209A CN 103791209 A CN103791209 A CN 103791209A CN 201410050386 A CN201410050386 A CN 201410050386A CN 103791209 A CN103791209 A CN 103791209A
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- handle
- positioning device
- rod
- pad
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Abstract
The invention discloses a positioning device based on a projection support. The projection support comprises a foot support, a rod body and a hanging rod, wherein the rod body and the foot support are fixedly installed, and the hanging rod is located at the top of the rod body. A plurality of positioning device bodies are arranged on the rod body. Each positioning device body comprises a handle, a handle installation base, a convex piece and a spanner, the handle installation base and the handle are fixedly installed, the convex piece is arranged in the handle, and the spanner abuts against the convex piece. The spanners are eccentric spanners. The positioning device is simple in structure, convenient to manufacture, assemble and disassemble and good in positioning effect.
Description
Technical field
The present invention relates to shadow casting technique field, relate in particular to a kind of positioning device based on projection bracket.
Background technique
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 Environmental Conditions is had relatively high expectations; conventionally in the brighter situation of environment lighting, needing can be suitable for projection image with the relatively dark dark curtain of color presents; and in the situation that environment 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-part conventionally, some support lifting regulates height, also some frame bottom is provided with roller, to hang on the structural type that support eminence pulls out curtain downwards and locates and roll up some as curtain, some is the structural type that is fixed on support stage casing and upwards pulls out and hang location, certainly also has the structural types 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 problem, be necessary to provide a kind of new positioning device based on projection bracket.
Summary of the invention
Technical problem to be solved by this invention is, for above-mentioned deficiency of the prior art, to provide a kind of positioning device 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 positioning device 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 positioning devices, described positioning device comprises handle, with the hard-wired handle fitting seat of handle, be located at jacking block in handle and the spanner with the mutual butt of jacking block, described spanner is decenter clutch.
As a further improvement on the present invention, described handle and handle fitting seat are provided with penetration hole, and the described body of rod runs through to be located in described penetration hole.
As a further improvement on the present invention, be installed with the corresponding pad arranging on described handle, described pad is provided with the engagement portion with the corresponding setting of penetration hole of handle fitting seat, and described handle and handle fitting seat fixedly mount by pad.
As a further improvement on the present invention, the internal surface of described pad setting corresponding with body of rod outer surface.
As a further improvement on the present invention, the described body of rod is cylindrical, and the internal surface of described pad is the cambered surface caving inward.
As a further improvement on the present invention, described handle is provided with pad assembly department, and the penetration hole on described pad assembly department and handle runs through setting, and pad is bonded to each other by the body of rod in pad assembly department and penetration hole.
As a further improvement on the present invention, described spanner comprises eccentric part and the joint being connected with eccentric part, and described eccentric part rotary setting is on handle.
As a further improvement on the present invention, on described handle fitting seat, link is installed, described link and handle fitting seat are by bolt and screw fixed installation.
As a further improvement on the present invention, described foot support comprise the foot support assembly department that is installed on the body of rod, be fixedly installed in upper rack posts on foot support assembly department, 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 positioning device structure based on projection bracket of the present invention is simple, 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 positioning device 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 positioning device 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 positioning devices, positioning device comprises handle, with the hard-wired handle fitting seat of handle, be located at jacking block in handle and the spanner with the mutual butt of jacking block, spanner is decenter clutch.
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 assembly department 11, be fixedly installed in upper rack posts 12 on foot support assembly department, 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, be arranged with outside positioning device 31 on bar, positioning device 31 can carry out up-down adjustment according to different demands.
Shown in ginseng Fig. 2, in the present embodiment positioning device 31 comprise handle 311, with the hard-wired handle fitting seat 312 of handle 311, be located at jacking block 313 in handle and the spanner 314 with jacking block 313 mutual butts, wherein spanner 314 is decenter clutch.
On handle 311 and handle fitting seat 312, be respectively equipped with penetration hole, the body of rod runs through to be located in penetration hole.On handle 311, be installed with the corresponding pad 315 arranging, pad 315 is provided with the engagement portion 3151 with the corresponding setting of penetration hole of handle fitting seat 312, handle 311 and handle fitting seat 312 fixedly mount by pad 315, and engagement portion 3151 correspondences are fastened in the penetration hole of handle fitting seat 312.
The setting corresponding with body of rod outer surface of the internal surface of pad 313, if the body of rod is in the present embodiment cylindrical, penetration hole is also circular, the internal surface of pad 313 is the cambered surface caving inward.
Spanner 314 comprises eccentric part 3141 and the joint 3142 being connected with eccentric part, and eccentric part 3141 passes through running shaft 3143 rotary setting on handle 311, eccentric part 3141 and the mutual butt setting of pad 313 of spanner 314.
Further, link 316 is installed on handle fitting seat 312 in present embodiment, link 316 and handle fitting seat 312 are by bolt and screw fixed installation, the effect of link 316 is lower ends of fixing projection screen, by adjusting the height of positioning device, the height of controlling projection curtain effectively.
In the present embodiment, the installation and removal process of positioning device is as follows:
When installation, first by the handle in positioning device and handle mounting part fixed installation, then the body of rod is inserted in the penetration hole of handle and handle mounting part, pull spanner, make spanner eccentric part radius larger part and the mutual butt of pad, now spanner promotion pad moves inward, until pad is closely connected to body of rod outer surface, and then reaches fixed effect.
When dismounting, first pull spanner, make spanner eccentric part radius smaller part and the mutual butt of pad, now pad has certain space to move freely, pad and the body of rod, without fixed effect, now move or unload positioning device, can reach object mobile or dismounting.
Can be found out by above mode of execution, the positioning device structure based on projection bracket of the present invention is simple, 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 specification, must determine its technical scope according to claim scope.
Claims (9)
1. the positioning device 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 positioning devices, it is characterized in that, described positioning device comprises handle, with the hard-wired handle fitting seat of handle, be located at jacking block in handle and the spanner with the mutual butt of jacking block, described spanner is decenter clutch.
2. the positioning device based on projection bracket according to claim 1, is characterized in that, described handle and handle fitting seat are provided with penetration hole, and the described body of rod runs through to be located in described penetration hole.
3. the positioning device based on projection bracket according to claim 2, it is characterized in that, on described handle, be installed with the corresponding pad arranging, described pad is provided with the engagement portion with the corresponding setting of penetration hole of handle fitting seat, and described handle and handle fitting seat fixedly mount by pad.
4. the positioning device based on projection bracket according to claim 1, is characterized in that, the setting corresponding with body of rod outer surface of the internal surface of described pad.
5. the positioning device based on projection bracket according to claim 1, is characterized in that, the described body of rod is cylindrical, and the internal surface of described pad is the cambered surface caving inward.
6. the positioning device based on projection bracket according to claim 2, it is characterized in that, described handle is provided with pad assembly department, and the penetration hole on described pad assembly department and handle runs through setting, and pad is bonded to each other by the body of rod in pad assembly department and penetration hole.
7. the positioning device based on projection bracket according to claim 1, is characterized in that, described spanner comprises eccentric part and the joint being connected with eccentric part, and described eccentric part rotary setting is on handle.
8. the positioning device based on projection bracket according to claim 1, is characterized in that, on described handle fitting seat, link is installed, and described link and handle fitting seat are by bolt and screw fixed installation.
9. the positioning device based on projection bracket according to claim 1, it is characterized in that, described foot support comprises the foot support assembly department that is installed on the body of rod, be fixedly installed in upper rack posts on foot support assembly department, 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 |
|---|---|---|---|
| CN201410050386.7A CN103791209A (en) | 2014-02-13 | 2014-02-13 | Positioning device of projection support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050386.7A CN103791209A (en) | 2014-02-13 | 2014-02-13 | Positioning device of projection support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103791209A true CN103791209A (en) | 2014-05-14 |
Family
ID=50667135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410050386.7A Pending CN103791209A (en) | 2014-02-13 | 2014-02-13 | Positioning device of projection support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103791209A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974725A (en) * | 2016-07-04 | 2016-09-28 | 张家港宝视特影视器材有限公司 | F-shaped adjustable support for projection screen |
| CN105974726A (en) * | 2016-07-04 | 2016-09-28 | 张家港宝视特影视器材有限公司 | F-shaped portable support screen |
Citations (7)
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|---|---|---|---|---|
| KR20020005134A (en) * | 2000-07-08 | 2002-01-17 | 조숙자 | Hight adjuster for prop of projector |
| CN101125051A (en) * | 2007-09-12 | 2008-02-20 | 常州侨裕旅游用品有限公司 | Armrest locking device |
| CN201022510Y (en) * | 2007-02-06 | 2008-02-20 | 浙江泰普森休闲用品有限公司 | Pipe leg telescopic regulator |
| CN201246585Y (en) * | 2008-05-19 | 2009-05-27 | 吕信苗 | Sun umbrella support tripod |
| CN201853058U (en) * | 2010-11-09 | 2011-06-01 | 东莞市澳星视听器材有限公司 | Portable support projection screen |
| CN202937982U (en) * | 2012-10-26 | 2013-05-15 | 张家港市欣达丰机电制造有限公司 | Bracket |
| CN203037985U (en) * | 2012-12-11 | 2013-07-03 | 江苏红叶视听器材股份有限公司 | Projection curtain device |
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2014
- 2014-02-13 CN CN201410050386.7A patent/CN103791209A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020005134A (en) * | 2000-07-08 | 2002-01-17 | 조숙자 | Hight adjuster for prop of projector |
| CN201022510Y (en) * | 2007-02-06 | 2008-02-20 | 浙江泰普森休闲用品有限公司 | Pipe leg telescopic regulator |
| CN101125051A (en) * | 2007-09-12 | 2008-02-20 | 常州侨裕旅游用品有限公司 | Armrest locking device |
| CN201246585Y (en) * | 2008-05-19 | 2009-05-27 | 吕信苗 | Sun umbrella support tripod |
| CN201853058U (en) * | 2010-11-09 | 2011-06-01 | 东莞市澳星视听器材有限公司 | Portable support projection screen |
| CN202937982U (en) * | 2012-10-26 | 2013-05-15 | 张家港市欣达丰机电制造有限公司 | Bracket |
| CN203037985U (en) * | 2012-12-11 | 2013-07-03 | 江苏红叶视听器材股份有限公司 | Projection curtain device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974725A (en) * | 2016-07-04 | 2016-09-28 | 张家港宝视特影视器材有限公司 | F-shaped adjustable support for projection screen |
| CN105974726A (en) * | 2016-07-04 | 2016-09-28 | 张家港宝视特影视器材有限公司 | F-shaped portable support screen |
| CN105974725B (en) * | 2016-07-04 | 2017-10-13 | 张家港宝视特影视器材有限公司 | Projection screen F type adjustable supports |
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Application publication date: 20140514 |