CN114495758A - Rural holographic projection propaganda device - Google Patents
Rural holographic projection propaganda device Download PDFInfo
- Publication number
- CN114495758A CN114495758A CN202110732751.2A CN202110732751A CN114495758A CN 114495758 A CN114495758 A CN 114495758A CN 202110732751 A CN202110732751 A CN 202110732751A CN 114495758 A CN114495758 A CN 114495758A
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- display
- board
- rural
- holographic projection
- propaganda device
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- 230000008093 supporting effect Effects 0.000 claims abstract description 39
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000001093 holography Methods 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 235000002566 Capsicum Nutrition 0.000 description 1
- 239000006002 Pepper Substances 0.000 description 1
- 235000016761 Piper aduncum Nutrition 0.000 description 1
- 235000017804 Piper guineense Nutrition 0.000 description 1
- 244000203593 Piper nigrum Species 0.000 description 1
- 235000008184 Piper nigrum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
- G09F15/0006—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Holo Graphy (AREA)
Abstract
The invention discloses a holographic projection propaganda device for rural areas, and relates to a propaganda device, which comprises a supporting component and a display component, wherein the display component is fixed at the top of the supporting component, the display component comprises a display board and an expansion board in sliding connection with the display board, the expansion board can contract inwards after moving to the outermost side, and one end of the expansion board, which is positioned inside the display board, is provided with an anti-skidding component which is abutted against the display board. The anti-skidding assembly comprises a guide vertical pipe fixedly connected with the inner end of the display board, the inner side of the guide vertical pipe is connected with a push rod through a spring, and the push rod is abutted to the inner wall of the display board. The display device is simple in structure and convenient to use, the display device can be used for displaying through the display assembly, the display assembly can enlarge the display area, the display effect is maximized, in addition, the support assembly of the device can adjust the support height, the support stability of the device can be better adjusted, the practical effect of the device is maximized, and the use experience is good.
Description
Technical Field
The invention relates to a propaganda device, in particular to a holographic projection propaganda device for rural areas.
Background
The holographic projection technology belongs to a 3D technology, and originally refers to a technology for recording and reproducing a real three-dimensional image of an object by utilizing an interference principle. Then, with the guidance of science fiction movies and commercial propaganda, the concept of holographic projection is gradually extended to commercial activities such as stage performance, exhibition and exhibition. However, the holography which we know at ordinary times is not the holography projection in the strict sense, but a holography projection technology which uses the Pepper's ghost, edge blanking and other methods to realize the 3D effect.
"holographic" comes from the Greek word "holo" and means "complete information", i.e. containing amplitude and phase information in light waves. Conventional photography techniques can only record intensity information (amplitude) of the light, and depth information (phase) is lost. In the interference process of the holographic technology, the superposition of the wave crest and the wave crest can be higher, and the superposition of the wave crest and the wave trough can be flattened, so that a series of irregular and light-dark-alternating stripes can be generated, and phase information is converted into intensity information to be recorded on a photosensitive material.
The whole system projection equipment is gradually popularized in the rural construction process, but the price is not so high, and the holographic projection can be better popularized by fully publicizing and understanding villagers. However, the existing propaganda device is poor in use experience and propaganda and display effects, so that the high-end equipment of holographic projection cannot be popularized. Therefore, the technical personnel in the field propose a rural holographic projection propaganda device to solve the problems in the background.
Disclosure of Invention
The invention aims to provide a holographic projection propaganda device for rural areas to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a rural holographic projection propaganda device that uses, includes supporting component and show subassembly, and the show subassembly is fixed in the supporting component top, and the show subassembly includes show board and with show board sliding connection's expansion board, can contract to the inboard behind the expansion board motion outermost side, and the expansion board is located the one end of show inboard inside and is provided with the anti-skidding subassembly with show board butt.
As a further scheme of the invention: the anti-skidding assembly comprises a guide vertical pipe fixedly connected with the inner end of the display board, the inner side of the guide vertical pipe is connected with a push rod through a spring, and the push rod is abutted to the inner wall of the display board.
As a still further scheme of the invention: the inside fixedly connected with electro-magnet of direction riser, spring and electro-magnet fixed connection, the cooperation is inhaled with the electro-magnet magnetism to the ejector pin, and show board inner wall both ends fixedly connected with contact switch, and the ejector pin overcomes spring force and electro-magnet actuation when contact switch touches.
As a still further scheme of the invention: two rotating rods are rotatably connected to the axis of the inner wall of the display board, and the outer ends of the two rotating rods are respectively and rotatably connected with the expansion boards on the two sides.
As a still further scheme of the invention: the supporting component comprises a supporting bottom plate, the middle of the supporting bottom plate is rotatably connected with a screw rod, a threaded sleeve is slidably connected to the upper portion of the screw rod, and the threaded sleeve is fixedly connected with the display component.
As a still further scheme of the invention: the screw sleeve and the screw rod can not rotate relatively, a plurality of limiting holes are formed in the outer side of the screw sleeve, and a limiting rod is movably inserted into the inner side of one limiting block.
As a still further scheme of the invention: the bottom of the screw rod is rotatably connected with a rotating plate, the outer side of the rotating plate is rotationally and symmetrically connected with a plurality of inclined connecting rods, the other ends of the inclined connecting rods are rotatably connected with sliding supporting rods, and the sliding supporting rods are connected with the supporting bottom plate in a relatively sliding mode.
As a still further scheme of the invention: the sliding support rod is connected with the outer edge of the support bottom plate in a relative sliding mode.
As a still further scheme of the invention: at least three inclined connecting rods are arranged.
As a still further scheme of the invention: the supporting bottom plate is conical, the sliding supporting rod is fixedly connected with an elastic connecting piece, and the elastic connecting piece is fixedly connected with the supporting bottom plate.
Compared with the prior art, the invention has the beneficial effects that: the display device is simple in structure and convenient to use, can be displayed through the display assembly during use, the display assembly can enlarge the display area, so that the display effect is maximized, in addition, the support assembly of the device can adjust the support height, the support stability of the device can be better adjusted, the practical effect of the device is maximized, the use experience is good, and the popularization value is achieved.
Drawings
FIG. 1 is a schematic cross-sectional view of a holographic projection propaganda device used in rural areas;
FIG. 2 is a schematic cross-sectional view of an antiskid assembly in a holographic projection propaganda device for rural areas;
FIG. 3 is a schematic side sectional view of a threaded sleeve in a holographic projection propaganda device for rural areas;
FIG. 4 is a schematic structural diagram of a support base plate in a holographic projection propaganda device for rural areas;
FIG. 5 is a schematic structural diagram of a support assembly in a holographic projection propaganda device for rural areas;
in the figure: 1. a support assembly; 2. a display assembly; 3. a display board; 4. an expansion board; 5. an anti-skid component; 6. a guide stand pipe; 7. a spring; 8. a top rod; 9. an electromagnet; 10. a contact switch; 11. a rotating rod; 12. a support base plate; 13. a screw; 14. a threaded sleeve; 15. a limiting hole; 16. a limiting rod; 17. rotating the plate; 18. a tilt link; 19. a sliding support bar; 20. An elastic connecting piece.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Please refer to fig. 1-5, a holographic projection propaganda device for rural areas comprises a supporting component 1 and a display component 2, wherein the display component 2 is fixed on the top of the supporting component 1, the display component 2 comprises a display board 3 and an expansion board 4 connected with the display board 3 in a sliding manner, the expansion board 4 can be retracted to the inner side after moving to the outermost side, and an anti-slip component 5 abutted against the display board 3 is arranged at one end of the expansion board 4 positioned inside the display board 3.
Supporting component 1 is used for supporting show subassembly 2, guarantee the inevitable condition of the higher bandwagon effect of show subassembly 2 during the nimble regulation of supporting component 1, show subassembly 2 is including show board 3 and expansion board 4, expansion board 4 can make the show face enlarge after stretching out from show board 3 inside slip, antiskid component 5 can be fine carry out reasonable spacing with expansion board 4 and show board 3's relative position, do not influence expansion board 4 and outwards stretch out and show on the one hand, on the other hand avoids expansion board 4 too nimble, the not accurate condition of position injecing, expansion board 4 outside move to the shrink that can be nimble behind the outermost side, antiskid component 5 can not play the antiskid this moment, this technical means mode is various, can pass through circuit control, make antiskid component 5 move to the outermost side not produce work can.
In one embodiment, the anti-skid assembly 5 comprises a guiding vertical pipe 6 fixedly connected to the inner end of the display board 3, and an ejector rod 8 is connected to the inner side of the guiding vertical pipe 6 through a spring 7, and the ejector rod 8 abuts against the inner wall of the display board 3. The inside fixedly connected with electro-magnet 9 of direction riser 6, spring 7 and electro-magnet 9 fixed connection, ejector pin 8 and the cooperation of electro-magnet 9 magnetism are inhaled, and show board 3 inner wall both ends fixedly connected with contact switch 10, and ejector pin 8 overcomes spring 7 power and electro-magnet 9 actuation when contact switch 10 touches.
This embodiment provides a concrete anti-skidding subassembly 5's implementation mode, the riser 6 that leads slides and sets up inside show board 3, ejector pin 8 can withstand the inner wall of show board 3 under spring 7's effect, expansion board 4 just can not too nimble slip between 3 with the show board this moment, and when expansion board 4 expands to the outside, contact switch 10 is touched, electro-magnet 9 work this moment, the time delay produces magnetism, and inhale ejector pin 8 to the inboard, spring 7 is compressed this moment, because ejector pin 8 does not offset with show board 3 inner wall, can be nimble withdraw expansion board 4. The present embodiment is obviously not a single embodiment, and the expansion board 4 is provided with a displacement sensor, and the expansion board 4 can be quickly retracted by detecting that the expansion board 4 generates a sufficiently large displacement, i.e. releasing the working state of the anti-skid component 5.
In one embodiment, two rotating rods 11 are rotatably connected to the central axis of the inner wall of the display board 3, and the outer ends of the two rotating rods 11 are rotatably connected to the expansion boards 4 on both sides, respectively. Be connected through bull stick 11 and show board 3 and can play certain connection guide effect, avoid expansion board 4 to take out the dynamics too big, directly take out the condition of falling.
In one embodiment, the supporting component 1 includes a supporting base plate 12, a screw 13 is rotatably connected to the middle of the supporting base plate 12, a threaded sleeve 14 is slidably connected to the upper side of the screw 13, the threaded sleeve 14 is fixedly connected to the display component 2, the threaded sleeve 14 and the screw 13 are not relatively rotatable, a plurality of limiting holes 15 are formed in the outer side of the threaded sleeve 14, and a limiting rod 16 is movably inserted into the inner side of one limiting block. The sliding connection between the threaded sleeve 14 and the screw 13 can well realize the height adjustment of the device, the threaded sleeve 14 is pulled upwards, and then the limiting rod 16 is inserted into the corresponding limiting hole 15, so that the displacement of the threaded sleeve 14 in the descending direction can be limited, and the height adjustment purpose is achieved.
In one embodiment, a rotating plate 17 is rotatably connected to the bottom of the screw 13, a plurality of inclined connecting rods 18 are rotatably and symmetrically connected to the outer side of the rotating plate 17, a sliding supporting rod 19 is rotatably connected to the other end of each inclined connecting rod 18, and the sliding supporting rod 19 is slidably connected with the supporting base plate 12 relatively. Along with screw 13's rotation, commentaries on classics board 17 can the upward movement or the downstream, drives slip bracing piece 19 through slope connecting rod 18 in the motion process and stretches out to the outside, when the device supports unstablely, stretches out slip bracing piece 19, and the stability that the mode that supports through the point can greatly increased device support avoids the device to rock obvious condition when propagating and takes place.
In one embodiment, the sliding support bar 19 is slidably connected to the outer edge of the support base 12.
In one embodiment, the inclined connecting rod 18 is provided with at least three supports, and three supports are the most stable way, and the arrangement of the plurality of inclined supporting rods 18 can also be supported according to the realization of stable support, preferably 3-5 sliding supporting rods 19.
In one embodiment, the supporting base plate 12 is conical, the elastic connecting member 20 is fixedly connected to the sliding support rod 19, the elastic connecting member 20 is fixedly connected to the supporting base plate 12, the elastic connecting member 20 can tension the sliding support rod 19, and the tensioned state of the sliding support rod 19 can achieve a more stable supporting effect, so that the situation that the supporting is not stable enough due to the hinged virtual position between the inclined support rod 18 and the sliding support rod 19 is avoided.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a rural holographic projection propaganda device that uses, includes supporting component and show subassembly, its characterized in that, and the show subassembly is fixed in the supporting component top, and the show subassembly includes the show board and with show board sliding connection's expansion board, can contract to the inboard behind the expansion board motion outermost side, and the expansion board is located the one end of show inboard inside and is provided with the anti-skidding subassembly with show board butt.
2. The rural holographic projection propaganda device that uses of claim 1, characterized in that, antiskid component includes the direction riser of show board inner end fixed connection, and there is the ejector pin direction riser inboard through spring coupling, and the ejector pin offsets with the show board inner wall.
3. The rural holographic projection propaganda device used according to claim 2, wherein an electromagnet is fixedly connected inside the guide vertical pipe, a spring is fixedly connected with the electromagnet, the ejector rod is matched with the electromagnet in a magnetic attraction manner, contact switches are fixedly connected to two end portions of the inner wall of the display board, and the ejector rod overcomes the spring force to attract the electromagnet when the contact switches are touched.
4. The rural holographic projection propaganda device used according to any one of claims 1-3, wherein two rotating rods are rotatably connected to the central axis of the inner wall of the display board, and the outer ends of the two rotating rods are rotatably connected to the expansion boards at two sides, respectively.
5. The rural holographic projection propaganda device used according to claim 1, wherein the supporting component comprises a supporting bottom plate, a screw rod is rotatably connected to the middle of the supporting bottom plate, a threaded sleeve is slidably connected to the upper portion of the screw rod, and the threaded sleeve is fixedly connected to the display component.
6. The rural holographic projection propaganda device used according to claim 5, wherein the screw sleeve and the screw rod are non-rotatable, a plurality of limiting holes are formed on the outer side of the screw sleeve, and a limiting rod is movably inserted into the inner side of one limiting block.
7. The rural holographic projection propaganda device used in the countryside of claim 6, wherein the bottom of the screw rod is rotatably connected with a rotating plate, the outer side of the rotating plate is rotatably and symmetrically connected with a plurality of inclined connecting rods, the other end of each inclined connecting rod is rotatably connected with a sliding support rod, and the sliding support rod is relatively and slidably connected with the support bottom plate.
8. The rural holographic projection propaganda device that uses of claim 7, characterized in that, the relative slip connection of bracing piece and supporting bottom plate outward flange department is followed.
9. The rural holographic projection propaganda device used in the country according to claim 7, wherein the inclined connecting rod is provided with at least three.
10. The rural holographic projection propaganda device used in the countryside of claim 7, wherein the supporting bottom plate is conical, the sliding supporting rod is fixedly connected with an elastic connecting piece, and the elastic connecting piece is fixedly connected with the supporting bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110732751.2A CN114495758A (en) | 2021-06-29 | 2021-06-29 | Rural holographic projection propaganda device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110732751.2A CN114495758A (en) | 2021-06-29 | 2021-06-29 | Rural holographic projection propaganda device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114495758A true CN114495758A (en) | 2022-05-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110732751.2A Withdrawn CN114495758A (en) | 2021-06-29 | 2021-06-29 | Rural holographic projection propaganda device |
Country Status (1)
| Country | Link |
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| CN (1) | CN114495758A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107967841A (en) * | 2017-11-17 | 2018-04-27 | 常州信息职业技术学院 | A kind of Japanese Teaching clipboard easy to use |
| CN209044913U (en) * | 2018-08-27 | 2019-06-28 | 阜阳市百誉网络科技有限公司 | A kind of mobile computer interactive teaching device |
| CN209416346U (en) * | 2019-02-26 | 2019-09-20 | 孙杰 | A kind of Portable engineering surveying instrument |
| CN209790289U (en) * | 2019-03-11 | 2019-12-17 | 江苏大学附属医院 | Folded cascade nursing frame for surgery |
| CN110874969A (en) * | 2019-12-06 | 2020-03-10 | 戴斌 | Law teaching display device |
| CN210349220U (en) * | 2019-10-23 | 2020-04-17 | 贺韧 | Marketing data display device |
| CN210667244U (en) * | 2019-06-18 | 2020-06-02 | 王世银 | Chinese phrase learning tool |
| CN211454947U (en) * | 2020-03-03 | 2020-09-08 | 亢凤华 | Think political affairs classroom teaching device |
| CN112116869A (en) * | 2020-08-21 | 2020-12-22 | 西安环宇芯微电子有限公司 | Display device for automatic test of PWM zero setting parameters |
| CN212929299U (en) * | 2020-08-10 | 2021-04-09 | 牛家宽 | Strutting arrangement for mine survey |
| CN212986613U (en) * | 2020-08-27 | 2021-04-16 | 河南展图测绘技术有限公司 | RTK measuring device for urban planning |
| CN112837567A (en) * | 2021-03-01 | 2021-05-25 | 郑州科技学院 | Network law treatment education device |
| CN213479650U (en) * | 2020-10-31 | 2021-06-18 | 中咨工程管理咨询有限公司 | Survey and drawing surveyor's level convenient to support |
-
2021
- 2021-06-29 CN CN202110732751.2A patent/CN114495758A/en not_active Withdrawn
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107967841A (en) * | 2017-11-17 | 2018-04-27 | 常州信息职业技术学院 | A kind of Japanese Teaching clipboard easy to use |
| CN209044913U (en) * | 2018-08-27 | 2019-06-28 | 阜阳市百誉网络科技有限公司 | A kind of mobile computer interactive teaching device |
| CN209416346U (en) * | 2019-02-26 | 2019-09-20 | 孙杰 | A kind of Portable engineering surveying instrument |
| CN209790289U (en) * | 2019-03-11 | 2019-12-17 | 江苏大学附属医院 | Folded cascade nursing frame for surgery |
| CN210667244U (en) * | 2019-06-18 | 2020-06-02 | 王世银 | Chinese phrase learning tool |
| CN210349220U (en) * | 2019-10-23 | 2020-04-17 | 贺韧 | Marketing data display device |
| CN110874969A (en) * | 2019-12-06 | 2020-03-10 | 戴斌 | Law teaching display device |
| CN211454947U (en) * | 2020-03-03 | 2020-09-08 | 亢凤华 | Think political affairs classroom teaching device |
| CN212929299U (en) * | 2020-08-10 | 2021-04-09 | 牛家宽 | Strutting arrangement for mine survey |
| CN112116869A (en) * | 2020-08-21 | 2020-12-22 | 西安环宇芯微电子有限公司 | Display device for automatic test of PWM zero setting parameters |
| CN212986613U (en) * | 2020-08-27 | 2021-04-16 | 河南展图测绘技术有限公司 | RTK measuring device for urban planning |
| CN213479650U (en) * | 2020-10-31 | 2021-06-18 | 中咨工程管理咨询有限公司 | Survey and drawing surveyor's level convenient to support |
| CN112837567A (en) * | 2021-03-01 | 2021-05-25 | 郑州科技学院 | Network law treatment education device |
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