CN203535373U - Positioning device based on projection support - Google Patents
Positioning device based on projection support Download PDFInfo
- Publication number
- CN203535373U CN203535373U CN201320746058.1U CN201320746058U CN203535373U CN 203535373 U CN203535373 U CN 203535373U CN 201320746058 U CN201320746058 U CN 201320746058U CN 203535373 U CN203535373 U CN 203535373U
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- CN
- China
- Prior art keywords
- locating device
- device based
- rod
- inner core
- overcoat
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- Expired - Fee Related
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Abstract
The utility model discloses a positioning device based on a projection support. The projection support comprises a leg support, a rod body fixed and installed with the leg support, and a hook rail disposed on a top of the rod body. The rod body is provided with a plurality of positioning devices. The positioning device comprises a jacket, a rotary knob outside the jacket, and an inner core, a lining block, a push plate, and a nut in the jacket. The inner core comprises a first holding portion holding the rod body, and a second holding portion holding the lining block, the push plate, and the nut. The nut, the inner core, and the jacket are correspondingly provided with screw holes used for installing the rotary knob. The positioning device is simple in structure, convenient in manufacturing, installation, and dismounting, good in positioning effect, and is suitable for projection screens in different lengths.
Description
Technical field
The utility model relates to shadow casting technique field, relates in particular to a kind of locating device 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 comprised of support and curtain volume two parts conventionally, some support liftable regulates height, also some frame bottom is provided with roller, and roll up some as curtain, be to hang on the version that support eminence is pulled out curtain location downwards, some is to be fixed on the version that location was upwards pulled out and hung in support stage casing, 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 locating device based on projection bracket.
Utility model content
Technical problem to be solved in the utility model is, for above-mentioned deficiency of the prior art, to provide a kind of locating device based on projection bracket exactly, and it is simple in structure, easy to use.
The utility model solves the technical scheme that its technical matters adopts:
A kind of locating device based on projection bracket, described projection bracket comprise foot support, with the hard-wired body of rod of foot support and the peg that is positioned at body of rod top, the described body of rod is provided with some locating devices, described locating device comprises the knob of overcoat, overcoat outside and the inner core, pad, push pedal and the nut that are positioned at overcoat inside, described inner core comprises first resettlement section of accommodating the body of rod and second resettlement section of accommodating interior pad, push pedal and nut, described nut, inner core and put correspondence outward and be provided with the screw that knob is installed.
As further improvement of the utility model, described interior pad is positioned at the second resettlement section of inner core, and the lateral surface of interior pad is the arc of setting corresponding to the body of rod.
As further improvement of the utility model, described interior pad comprises some reinforcements.
As further improvement of the utility model, described inner core sidewall is provided with some reinforcements.
As further improvement of the utility model, described push pedal comprises diapire and is located at diapire both sides and sidewall that diapire is perpendicular, described diapire is between interior pad and nut, and described sidewall is positioned at pad outside, and described interior pad is positioned at the receiving space that diapire and sidewall are enclosed to form.
As further improvement of the utility model, the described body of rod comprises the outer bar being connected with foot support and the interior bar being connected with outer bar, the mutual sheathed connection of described outer bar and interior bar, outer bar and the sheathed place of interior bar are provided with the first locating device, and described outer bar is provided with the second locating device.
As further improvement of the utility model, on described the first locating device, below inner core, be fixedly connected with connecting pipe, described connecting pipe is sheathed on outer masthead portion.
As further improvement of the utility model, described the second locating device also comprises the sleeve of being located at overcoat one side, and described sleeve and knob lay respectively on overcoat two sides.
As further improvement of the utility model, outer the putting in described the second locating device is provided with sleeve mounting hole, and sleeve top is provided with installation portion, and described installation portion is fixedly installed in overcoat inner side by mounting hole.
As further improvement of the utility model, 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.
The beneficial effects of the utility model are, the positioning device structure based on projection bracket of the present utility model is simple, manufacture, installation and convenient disassembly, and good positioning effect, goes for the projection screen of different length.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of projection bracket in the utility model one specific embodiment.
Fig. 2 is the exploded perspective view of the first locating device in the utility model one specific embodiment.
Fig. 3 is the exploded perspective view of the second locating device in the utility model one specific embodiment.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.
The utility model discloses a kind of locating device based on projection bracket, projection bracket comprise foot support, with the hard-wired body of rod of foot support and the peg that is positioned at body of rod top, the body of rod is provided with some locating devices, locating device comprises the knob of overcoat, overcoat outside and the inner core, pad, push pedal and the nut that are positioned at overcoat inside, inner core comprises first resettlement section of accommodating the body of rod and second resettlement section of accommodating interior pad, push pedal and nut, nut, inner core and put correspondence outward and be provided with the screw that knob is installed.Interior pad is positioned at the second resettlement section of inner core, and the lateral surface of interior pad is the arc of setting corresponding to the body of rod.
Fig. 1 is the structural representation of projection bracket in the utility model one specific embodiment.
In the present embodiment projection bracket comprise foot support, with the hard-wired body of rod of foot support and the peg that is positioned 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 to more than 3 in other embodiments.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 the first locating device 31 outside, and the second locating device 32 is installed on bar outside.Outer bar and interior pole length can regulate as required, then adopt the first locating device to be fixed, thereby can need to regulate the length of the body of rod according to different projections.
Shown in ginseng Fig. 2, the first locating device 31 comprises the knob (not shown) of overcoat 312, overcoat 312 outsides and the inner core 311, pad 313, push pedal 314 and the nut 315 that are positioned at overcoat 312 inside, inner core 311 comprises first resettlement section of accommodating the body of rod and second resettlement section of accommodating interior pad, push pedal and nut, and the first resettlement section one-piece construction is right cylinder.At nut, inner core and put correspondence outward and be provided with the screw that knob is installed.
Further, the lateral surface of interior pad 313 is the arc of setting corresponding to the body of rod, and when inner core 311 is sheathed on the body of rod, lateral surface and the body of rod of interior pad 313 are bonded to each other, keeps enough friction force for location.
Push pedal 314 comprises diapire and is located at diapire both sides and sidewall that diapire is perpendicular, and diapire is between interior pad and nut, and sidewall is positioned at pad outside, and interior pad is positioned at the receiving space that diapire and sidewall are enclosed to form.
Further, be fixedly connected with connecting pipe 316 on the first locating device 31 below inner core 311, connecting pipe 316 is sheathed on outer masthead portion, can better outer bar and interior bar be fixed.
During installation, first interior pad 313, push pedal 314 and nut 315 are installed in inner core 311, and overcoat 312 is sheathed on to inner core 311 outsides, then integral body is sheathed on interior bar and the sheathed place of outer bar, connecting pipe 315 is sheathed on to the outside of outer bar, then nut, inner core and the screw that puts are outward aimed at, knob is installed in screw.
During use, first knob is screwed out, now between interior pad and interior bar, have certain interval, pole length in regulating, then screws knob, and in push pedal promotes, pad inwardly moves, until interior pad and interior bar close contact reach locating effect.
Shown in ginseng Fig. 3, the first locating device 32 comprises the knob (not shown) of overcoat 322, overcoat 322 outsides and the inner core 321, pad 323, push pedal 324 and the nut 325 that are positioned at overcoat 322 inside, inner core 321 comprises first resettlement section of accommodating the body of rod and second resettlement section of accommodating interior pad, push pedal and nut, and the first resettlement section one-piece construction is right cylinder.At nut, inner core and put correspondence outward and be provided with the screw that knob is installed.
Further, the lateral surface of interior pad 323 is the arc of setting corresponding to the body of rod, and when inner core 321 is sheathed on the body of rod, lateral surface and the body of rod of interior pad 323 are bonded to each other, keeps enough friction force for location.
Further, the second locating device 32 also comprises the sleeve 326 of being located at overcoat one side, and sleeve 326 and knob lay respectively on overcoat 322 two sides.Overcoat 322 is provided with sleeve mounting hole, and sleeve top is provided with installation portion, and installation portion is fixedly installed in overcoat inner side by sleeve mounting hole.Sleeve 326 is for the fixing lower end of projection screen.
During installation, first interior pad 323, push pedal 324 and nut 325 are installed in inner core 321, sleeve pipe 326 is set on overcoat 322 simultaneously, overcoat 322 and sleeve pipe 326 are sheathed on to inner core 321 outsides, then integral body is sheathed on outer bar, finally nut, inner core and the screw that puts are outward aimed at, knob is installed in screw.
During use, first knob is screwed out, now between interior pad and interior bar, have certain interval, regulate the height of the second locating device, then screw knob, in push pedal promotes, pad inwardly moves, until interior pad and interior bar close contact reach locating effect.
Preferably, inner core and interior pad side can be set to plane, also can be set to hollow out, only by reinforcement, support, as cross reinforcement etc., easily manufactured and intensity is high.
In the present embodiment, the body of rod only comprises two sections, and locating device comprises two, and in other embodiments, the hop count of the body of rod and the quantity of locating device also can be set to more than two.
By above embodiment, can be found out, the positioning device structure based on projection bracket of the present utility model is simple, manufacture, installation and convenient disassembly, and good positioning effect, goes for the projection screen of different length.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on instructions, must determine its technical scope according to claim scope.
Claims (10)
1. the locating device based on projection bracket, described projection bracket comprise foot support, with the hard-wired body of rod of foot support and the peg that is positioned at body of rod top, the described body of rod is provided with some locating devices, it is characterized in that, described locating device comprises the knob of overcoat, overcoat outside and the inner core, pad, push pedal and the nut that are positioned at overcoat inside, described inner core comprises first resettlement section of accommodating the body of rod and second resettlement section of accommodating interior pad, push pedal and nut, described nut, inner core and put correspondence outward and be provided with the screw that knob is installed.
2. the locating device based on projection bracket according to claim 1, is characterized in that, described interior pad is positioned at the second resettlement section of inner core, and the lateral surface of interior pad is the arc of setting corresponding to the body of rod.
3. the locating device based on projection bracket according to claim 2, is characterized in that, described interior pad comprises some reinforcements.
4. the locating device based on projection bracket according to claim 1, is characterized in that, described inner core sidewall is provided with some reinforcements.
5. the locating device based on projection bracket according to claim 1, it is characterized in that, described push pedal comprises diapire and is located at diapire both sides and sidewall that diapire is perpendicular, described diapire is between interior pad and nut, described sidewall is positioned at pad outside, and described interior pad is positioned at the receiving space that diapire and sidewall are enclosed to form.
6. the locating device based on projection bracket according to claim 1, it is characterized in that, the described body of rod comprises the outer bar being connected with foot support and the interior bar being connected with outer bar, the mutual sheathed connection of described outer bar and interior bar, outer bar and the sheathed place of interior bar are provided with the first locating device, and described outer bar is provided with the second locating device.
7. the locating device based on projection bracket according to claim 6, is characterized in that, on described the first locating device, is fixedly connected with connecting pipe below inner core, and described connecting pipe is sheathed on outer masthead portion.
8. the locating device based on projection bracket according to claim 6, is characterized in that, described the second locating device also comprises the sleeve of being located at overcoat one side, and described sleeve and knob lay respectively on overcoat two sides.
9. the locating device based on projection bracket according to claim 8, is characterized in that, outer the putting in described the second locating device is provided with sleeve mounting hole, and sleeve top is provided with installation portion, and described installation portion is fixedly installed in overcoat inner side by mounting hole.
10. the locating device 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 |
|---|---|---|---|
| CN201320746058.1U CN203535373U (en) | 2013-11-21 | 2013-11-21 | Positioning device based on projection support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746058.1U CN203535373U (en) | 2013-11-21 | 2013-11-21 | Positioning device based on projection support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203535373U true CN203535373U (en) | 2014-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320746058.1U Expired - Fee Related CN203535373U (en) | 2013-11-21 | 2013-11-21 | Positioning device based on projection support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203535373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645598A (en) * | 2013-11-21 | 2014-03-19 | 江苏红叶视听器材股份有限公司 | A positioning device based on a projection support |
-
2013
- 2013-11-21 CN CN201320746058.1U patent/CN203535373U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645598A (en) * | 2013-11-21 | 2014-03-19 | 江苏红叶视听器材股份有限公司 | A positioning device based on a projection support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20141121 |
|
| EXPY | Termination of patent right or utility model |