CN114758596B - Mobile projection equipment for creative culture advertisement - Google Patents
Mobile projection equipment for creative culture advertisement Download PDFInfo
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- CN114758596B CN114758596B CN202210266104.1A CN202210266104A CN114758596B CN 114758596 B CN114758596 B CN 114758596B CN 202210266104 A CN202210266104 A CN 202210266104A CN 114758596 B CN114758596 B CN 114758596B
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- 230000007246 mechanism Effects 0.000 claims abstract description 193
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 35
- 235000017491 Bambusa tulda Nutrition 0.000 description 35
- 241001330002 Bambuseae Species 0.000 description 35
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 35
- 239000011425 bamboo Substances 0.000 description 35
- 238000000034 method Methods 0.000 description 9
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F21/00—Mobile visual advertising
- G09F21/06—Mobile visual advertising by aeroplanes, airships, balloons, or kites
- G09F21/12—Mobile visual advertising by aeroplanes, airships, balloons, or kites the advertising matter being towed by the aircraft
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
- G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
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- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Marketing (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
The invention relates to the technical field of creative advertisements, in particular to a mobile projection device for creative culture advertisements, which comprises an unmanned aerial vehicle, wherein a rope hook is fixedly connected to the bottom end of the unmanned aerial vehicle, a screen mechanism is arranged at one end of the rope hook, and a connecting mechanism is arranged at one side of the screen mechanism. According to the invention, the U-shaped frame at the bottom of the main rod is clamped on an object on the ground, a plurality of interference screws are screwed to abut against the clamped object to fix the clamped object, the connecting mechanism is sleeved on the main rod, the projector is placed in the placing mechanism, the screen mechanism is hooked on the rope hook, then the connecting mechanism is connected with the screen mechanism, the unmanned aerial vehicle is started to drive the screen mechanism to fly off the ground, then the unmanned aerial vehicle is hovered, the projector is opened to enable advertisements to be projected on the screen mechanism, so that advertisement information is displayed more clearly, meanwhile, viewing staff is not easy to be blocked by people, the information transmission range is wider, the angle and the height of the screen can be freely controlled through the unmanned aerial vehicle, and the information projection position can be conveniently adjusted.
Description
Technical Field
The invention relates to the technical field of creative advertisements, in particular to a mobile projection device for creative culture advertisements.
Background
When advertisement is put outdoors, some people can put advertisement information by using a projector, and generally put projector light on walls for showing, but the walls of some buildings can be uneven, so that the showing is relatively unclear; in addition, most of projection is projected onto a wall surface or a screen during projection, so that a pile possibly appears in front of a projection image, and people behind the pile are difficult to watch projection contents, so that the projection is inconvenient; and in general, when the projection position is adjusted, most devices basically need to be manually operated by a person, and require a long time to adjust, and meanwhile, the adjustable amplitude may be limited greatly, which is inconvenient.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide mobile projection equipment for creative culture advertisements, which is characterized in that a U-shaped frame at the bottom of a main rod is clamped on an object on the ground, a plurality of interference screws are screwed to abut against the clamped object to fix the clamped object, a connecting mechanism is sleeved on the main rod, a projector is placed inside a placing mechanism, a screen mechanism is hooked on a rope hook, the connecting mechanism is connected with the screen mechanism, an unmanned aerial vehicle is started to drive the screen mechanism to fly away from the ground, the unmanned aerial vehicle is hovered, and the projector is opened to enable advertisements to be projected on the screen mechanism, so that advertisement information is displayed more clearly, meanwhile, a viewer is not easy to block the sight of people, the information transmission range is wider, the angle and the height of a screen can be freely controlled by the unmanned aerial vehicle, and the information projection position can be conveniently adjusted.
The aim of the invention can be achieved by the following technical scheme:
the mobile projection equipment for creative culture advertisements comprises an unmanned aerial vehicle, wherein a rope hook is fixedly connected to the bottom end of the unmanned aerial vehicle, a screen mechanism is arranged at one end of the rope hook, a connecting mechanism is arranged on one side of the screen mechanism, a plurality of clamping mechanisms are arranged on the connecting mechanism, a fixing mechanism is arranged on one side of the connecting mechanism, and a placing mechanism is arranged between the fixing mechanism and the connecting mechanism;
fixed establishment includes the mobile jib, and mobile jib top fixedly connected with connecting block, connecting block and placement machine construct swing joint, mobile jib bottom fixedly connected with U type frame, and a plurality of screws have all been seted up to U type frame opposite sides, and the supporting screw that closes of screw has conflict screw, mobile jib lateral wall cup joints with the coupling mechanism activity, through the U type frame clamp with the mobile jib bottom subaerial object such as ground railing, the vehicle door, garbage bin border etc. department, then close a plurality of conflict screws soon, make a plurality of conflict screws conflict fixed by the centre gripping object, then overlap coupling mechanism on the mobile jib, then put into placement machine construct inside with the projecting apparatus, hook screen mechanism on the rope hook of unmanned aerial vehicle bottom, be connected coupling mechanism with screen mechanism again, then start unmanned aerial vehicle, utilize unmanned aerial vehicle to drive screen mechanism and fly off ground, then with unmanned aerial vehicle, then open the projecting apparatus, with the advertisement projection to screen mechanism on, thereby make advertisement information projection screen's plane on, simultaneously because the screen is located higher sky, make personnel be difficult for being shielded by the display, and make information spread range more wide, and the free position of the regulation of the information of the free position of the free angle of projection, the user is convenient for.
The method is further characterized in that: the utility model provides a connecting mechanism, including the internal thread section of thick bamboo, and internal thread section of thick bamboo one end closes with screen mechanism soon and is connected, the inside fixedly connected with connecting rope of internal thread section of thick bamboo, and connecting rope other end fixedly connected with fixed block, fixed block one end fixedly connected with rubber band, mobile jib lateral wall fixedly connected with two limiting plates, and the rubber band is located between two limiting plates, rubber band one end is around mobile jib lateral wall and laminate mutually with fixed block one side, and fixed block one side closes soon and has the tip screw that one end runs through rubber band one end, a plurality of joint mechanism cup joints with the activity of connecting rope lateral wall, closes soon through internal thread section of thick bamboo and screen mechanism, then with connecting rope go up the rubber band around the mobile jib, again with tip screw pass the rubber band and with the fixed block closes soon for the rubber band can tie the mobile jib, and convenient to use personnel installs and dismantle, and because the rubber band is spacing by two limiting plates, makes the rubber band be difficult for slide about the mobile jib on the random, simultaneously, because the rubber band belongs to harder rubber and makes, has certain thickness and has certain clearance to run through the tip screw of rubber band one end with lateral wall, makes the position can be connected with the unmanned aerial vehicle and can rotate the position along with the mobile jib on the screen rotation mechanism.
The method is further characterized in that: the clamping mechanism comprises a connecting strip, arc plates are rotationally connected to the opposite sides of the connecting strip, the connecting rope is positioned between the two arc plates, one side edge of one arc plate is fixedly connected with a plurality of elastic buckles, one side edge of the other arc plate is fixedly connected with a plurality of clamping frames, the elastic buckles are movably clamped inside the adjacent clamping frames, two ends of the arc plates are fixedly connected with clamping plates, two clamping plates are fixedly connected with rubber strips on the opposite sides of the two clamping plates, clamping grooves are formed in the other ends of the inner side walls of the arc plates, the two adjacent rubber strips are clamped inside the same clamping grooves, the two arc plates are opened by deviating from each other, the two arc plates clamp the connecting rope and then are buckled, the elastic buckles clamp the two arc plates on the connecting rope in the inner parts of the clamping frames, and after the screen mechanism is pulled up by a unmanned aerial vehicle to a certain height to straighten the connecting rope, two arc plates on the clamping mechanisms are buckled on the connecting rope and slide to enable two arc plates on the clamping mechanisms to be clamped into the other end of the internal thread cylinder, then two clamping plates on each clamping mechanism are clamped into the other ends of the two arc plates of the clamping mechanism on one side, two rubber strips on each clamping mechanism are clamped into two clamping grooves on the clamping mechanism on one side, a cylindrical body formed by the two buckled arc plates on the clamping mechanisms are clamped with an annular body formed by the two adjacent clamping plates, the clamping mechanisms form an integral tubular body, the connecting rope is limited and kept in a straight state by the rigid clamping mechanisms, the original flexible body is converted into a rigid body, and after the screen mechanism is lifted up, the connecting rope is not easy to be influenced by wind to generate larger shaking and bending, the stability of the screen mechanism is kept, the screen mechanism is integrally convenient to store and install, after the tubular body is formed by mutually clamping the clamping mechanisms, the connecting part between the tail end of the connecting rope and the main rod is not covered by the clamping mechanisms, so that the position and the angle of the connecting rope can still be changed along with the pulling of the unmanned aerial vehicle.
The method is further characterized in that: the screen mechanism includes the box body, and box body one end fixedly connected with shackle, and shackle and rope hook activity joint, a plurality of spouts have been seted up to the box body inner wall, and sliding connection has the slide between a plurality of spouts, slide one side rotates and is connected with a plurality of branches, and a plurality of branch both sides all are provided with the torsional spring, two torsional spring one end all with slide one side fixed connection, the other end all with adjacent branch lateral wall fixed connection, slide one side center fixedly connected with screw rod, and screw rod and internal thread section of thick bamboo turn-in to be connected, a plurality of branch one side fixedly connected with white curtain, through with internal thread section of thick bamboo screw rod, then after unmanned aerial vehicle lift-off, control unmanned aerial vehicle and remove, make the slide slip, until a plurality of branches shift out the box body, then a plurality of branches automatic rotation under the influence of elasticity that resets of torsional spring, make a plurality of contradicts the box body other end, originally receive between a plurality of branches with a plurality of branch rotate and expand with a plurality of branch, with projector content throw on the white curtain can, because the card of joint mechanism is solid for connecting rope is difficult to buckle, then need high so that the back can only to use the side of the support to touch down with the side of the human body, so that the human body can be easily reset with the back to the human body, and the human body can be used to the back stably.
The method is further characterized in that: a plurality of guide slots are formed in one side of the sliding plate, L-shaped clamping blocks are connected to the inner portions of the guide slots in a sliding mode, the L-shaped clamping blocks are in one-to-one correspondence with the plurality of supporting rods, the L-shaped clamping blocks are located at one ends of the corresponding supporting rods, a cylinder body is fixedly sleeved on the outer side wall of the internal thread cylinder, a plurality of J-shaped slots are formed in one end of the cylinder body, rubber rods are slidably sleeved in the J-shaped slots, the rubber rods are in one-to-one correspondence with the L-shaped clamping blocks, the internal thread cylinder is screwed into the screw rod, one end opening of each J-shaped slot is located at one side of the internal thread cylinder, the other end opening of each J-shaped slot is located at one side of the adjacent L-shaped clamping block, the rubber rods slide along the adjacent J-shaped slots and extrude part length from the other end opening of each J-shaped slot through pressing, one arm of each L-shaped clamping block is located at one end of the adjacent supporting rods, the supporting rods are limited to rotate, and accordingly the supporting rods are prevented from being greatly rocked due to blowing.
The method is further characterized in that: the connecting rope outer side wall is located the inner screw thread section of thick bamboo other end and has slidingly cup jointed a smooth section of thick bamboo, and smooth section of thick bamboo one end fixedly connected with snap ring, and the fixed rubber ring that has cup jointed of snap ring outer side wall, the caulking groove has all been seted up to the inner screw thread section of thick bamboo inside wall other end and smooth section of thick bamboo inside wall other end, and rubber ring and two adjacent rubber strips all with adjacent caulking groove inside activity joint, smooth section of thick bamboo outer side wall one end is fixed to have cup jointed the butt plate, promotes smooth section of thick bamboo through two arc on the joint mechanism, makes cardboard card income smooth section of thick bamboo other end on two arc, makes two rubber strips card go into the caulking groove on the smooth section of thick bamboo, then smooth section of thick bamboo is promoted by joint mechanism, makes the snap ring card go into the inner screw thread section of thick bamboo other end on smooth section of thick bamboo to make the rubber ring card go into inside the caulking groove of inner screw thread section of thick bamboo inside, simultaneously, smooth section of thick bamboo removes and will drive butt plate conflict a plurality of rubber poles, makes a plurality of rubber poles remove from J type groove inside the extrusion L type fixture block and remove.
The method is further characterized in that: the placing mechanism comprises a main board, equal fixedly connected with connecting plate in main board both sides, and main board top surface and two connecting plates deviate from the equal fixedly connected with framework of one end mutually, main board one end rotates and is connected with the swivel plate, and the swivel plate top surface has seted up the circular hole, the inside swivel bolt that is provided with of circular hole, the swivel hole has been seted up to the connecting block top surface, and swivel bolt one end and swivel hole rotation are connected, the main board bottom surface rotates and is connected with two splint, and two splint and two adjacent cardboard lateral wall activity cup joint, and two splint lateral wall bottom have all seted up a plurality of swivel holes, two a plurality of swivel holes one-to-one on the splint, and the swivel screw has been screwed between two corresponding swivel holes on the different splint, through placing the projector into inside the framework, with swivel bolt run through swivel plate and swivel hole, when needing the fixed swivel plate position, only need screw the swivel bolt, make swivel bolt extrusion swivel plate lean on the top surface to be fixed, when utilizing the position of unmanned aerial vehicle adjusting mechanism, only need wait to close the swivel bolt, then treat the joint and clamp the multiple clip in the multiple clip of a plurality of clip to take place the unmanned aerial vehicle lateral wall, make the multiple clip curtain on the side wall of the unmanned aerial vehicle, make the multiple clip on the side wall of the nose cap at the two clip, and make the two clip on the two lateral wall of the multiple clip, make the multiple arc-shaped connection of the unmanned aerial vehicle and the nose cap make the device, the multiple clip on the side curtain to be connected with the side of the multiple clip, and the multiple clip mechanism, and make the two clip on the side of the two lateral wall, and the safety device can be connected with the side at the position of the two safety device, and the safety device. Then, when the unmanned aerial vehicle drives the white screen and pulls the connecting rope to move in position and height, the two clamping plates slide on the adjacent arc plates, and the projector inside the frame body always projects the content onto the moving white screen.
The method is further characterized in that: the splint inside wall fixedly connected with is a plurality of to stabs, makes two splint centre gripping arc more firm when.
The method is further characterized in that: the screw thread mouth has been seted up to framework one side, and the inside screw thread mouth is screwed and is closed the pole, makes the user can rotate and closes the pole, makes the pole of closing soon conflict projecting apparatus, fixes the position of projecting apparatus in the framework inside.
The method is further characterized in that: the rotating and connecting rod is connected with the gasket in a rotating way at one end, the rotating and connecting rod is prevented from directly abutting against the projector to damage the projector, and the direct contact of the rotating and connecting rod to the projector is reduced through the gasket, so that the projector is protected to be intact.
The invention has the beneficial effects that:
1. through the object with the U type frame clamp of mobile jib bottom at subaerial, then close a plurality of conflict screws soon, make a plurality of conflict screws conflict fixed by the centre gripping object, then with coupling mechanism cover on the mobile jib, put into the projector and place inside the mechanism, with screen mechanism hook on the rope hook, be connected coupling mechanism and screen mechanism again, then start unmanned aerial vehicle, utilize unmanned aerial vehicle to drive screen mechanism and fly away from ground, then hover unmanned aerial vehicle, then open the projector, throw the advertisement on the screen mechanism, thereby make advertisement information throw the plane of screen on, the picture is clearer, simultaneously because the screen is located higher sky, make the difficult sight of being sheltered from by crowd, and make the information propagation scope wider, and the angle and the height of accessible unmanned aerial vehicle free control screen, the position of information projection of being convenient for regulation.
2. The two arc plates are rotated and opened, the connecting ropes are clamped by the two arc plates and then buckled, the two arc plates are fixedly sleeved on the connecting ropes inside the clamping frames, after the unmanned aerial vehicle pulls the screen mechanism to rise to a certain height to straighten the connecting ropes, the two arc plates on the clamping mechanisms are buckled on the connecting ropes and slide the clamping mechanisms, the two clamping plates on the clamping mechanisms are clamped into the other ends of the two arc plates of the clamping mechanism on one side, the two rubber strips on each clamping mechanism are clamped into the two clamping grooves on the clamping mechanism on one side, and the clamping mechanisms form an integral tubular body, so that the flexible connecting ropes are limited by the rigid clamping mechanisms, the screen mechanism is easy to shake and bend greatly due to the influence of wind after the screen mechanism is lifted up, the stability of the screen mechanism is maintained, and the whole screen mechanism is convenient to store and install;
3. the inner thread cylinder is screwed into the screw rod, the unmanned aerial vehicle is controlled to move after the unmanned aerial vehicle is lifted off, the sliding plate is made to slide until the support rods move out of the box body, the support rods automatically rotate under the influence of reset elastic force of the torsion spring to spread the white screen, projector content is projected onto the white screen, the connecting rope is not easy to bend due to clamping of the clamping mechanisms, the unmanned aerial vehicle can stabilize the position of the white screen only by keeping the height, after the unmanned aerial vehicle falls to the ground, the sliding plate is pressed hard to reset, the edge of the other end of the box body can be made to abut against the support rods, the support rods are made to be in contact with and reset, and accordingly the white screen and the support rods slide into the box body along with the sliding plate, and the white screen is convenient for a user to store;
4. placing the projector into the framework inside, will spin the bolt and run through the revolving board and spin the hole and spin, wait that unmanned aerial vehicle lifts off, with the mutual joint of a plurality of joint mechanisms on connecting the rope, and after fixing revolving board position, with two splint cover two arc lateral walls on adjacent joint mechanism, then screw a plurality of fastening screw, make two splint clip two arcs, make the junction of connecting rope and main pole receive certain spacing, supplementary unmanned aerial vehicle stabilizes screen mechanism and make the joint keep stable between a plurality of joint mechanisms, and make the projector of a plurality of framework inside throw on the white curtain, when utilizing unmanned aerial vehicle to adjust the white curtain position, unscrew a plurality of fastening screw, make two splint can slide on adjacent arcs, then when driving the white curtain and pulling connecting the rope and carrying out position altitude mixture movement along with unmanned aerial vehicle, two splint slide on adjacent arcs, and make the inside projector of framework throw the content on the white curtain that moves all the time.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a screen mechanism according to the present invention;
FIG. 3 is an exploded view of the screen mechanism of the present invention;
FIG. 4 is a schematic view of the structure of the clamping mechanism and the connecting mechanism in the invention;
FIG. 5 is an exploded view of the structure of the clamping mechanism and the connecting mechanism of the present invention;
FIG. 6 is a schematic cross-sectional view of an internally threaded barrel and barrel of the present invention;
FIG. 7 is a schematic view of the structure of the fixing mechanism and the placement mechanism of the present invention;
FIG. 8 is a schematic view of the structure of the screw, clamping plate and rubber band of the present invention.
In the figure: 100. a fixing mechanism; 110. a main rod; 111. a limiting plate; 120. a U-shaped frame; 121. a screw hole; 122. a contact screw; 130. a connecting block; 131. screwing the hole; 200. a placement mechanism; 210. a main board; 211. a connecting plate; 220. a frame; 221. a screwing rod; 222. a gasket; 230. a rotating plate; 231. screwing the bolt; 240. a clamping plate; 241. a rotary hole; 242. fastening a screw; 243. abutting against the thorns; 300. a screen mechanism; 310. a case body; 311. a shackle; 312. a chute; 320. a slide plate; 321. a guide groove; 330. a support rod; 340. an L-shaped clamping block; 350. a screw; 360. a white screen; 400. a connecting mechanism; 401. a caulking groove; 410. an internal thread cylinder; 420. a cylinder; 421. a J-shaped groove; 430. a rubber rod; 440. a slide cylinder; 441. a retaining plate; 450. a clasp; 451. a rubber ring; 460. a connecting rope; 461. a fixed block; 462. a rubber belt; 463. a pointed screw; 500. a clamping mechanism; 510. a connecting strip; 520. an arc-shaped plate; 521. a clamping groove; 530. a clamping plate; 531. a rubber strip; 540. an elastic buckle; 541. a clamping frame; 600. unmanned plane; 610. rope hook.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, a mobile projection device for creative culture advertisement includes an unmanned aerial vehicle 600, wherein a rope hook 610 is fixedly connected to the bottom end of the unmanned aerial vehicle 600, a screen mechanism 300 is arranged at one end of the rope hook 610, a connecting mechanism 400 is arranged at one side of the screen mechanism 300, a plurality of clamping mechanisms 500 are arranged on the connecting mechanism 400, a fixing mechanism 100 is arranged at one side of the connecting mechanism 400, and a placing mechanism 200 is arranged between the fixing mechanism 100 and the connecting mechanism 400;
the fixed establishment 100 includes mobile jib 110, and mobile jib 110 top fixedly connected with connecting block 130, connecting block 130 and placement machine 200 swing joint, mobile jib 110 bottom fixedly connected with U type frame 120, and a plurality of screw 121 have all been seted up to U type frame 120 relative both sides, screw 121 is supporting to be screwed and is had conflict screw 122, mobile jib 110 lateral wall and coupling machine 400 activity cup joint, through the U type frame 120 clamp in subaerial object with mobile jib 110 bottom, for example ground railing, the vehicle door, garbage bin border etc. department, then turn on a plurality of conflict screw 122, make a plurality of conflict screw 122 conflict by the centre gripping object fixed, then with coupling machine 400 cover on mobile jib 110, then put into placement machine 200 inside with the projecting apparatus, hook screen mechanism 300 is on the rope hook 610 of unmanned aerial vehicle 600 bottom, be connected with coupling machine 400 and screen mechanism 300 again, then start unmanned aerial vehicle 600, utilize unmanned aerial vehicle 600 to drive screen mechanism 300 fly off the ground, then with the projecting apparatus is opened, with the projecting apparatus, thereby make advertising information project on screen mechanism 300, thereby make the plane of advertising information projection screen, the display is more sheltered from the screen, simultaneously, the screen is higher and is located by the control range of the free vision is more convenient for the people, can be spread by the control of the high degree of freedom and can be convenient for people.
The connecting mechanism 400 comprises an internal thread cylinder 410, one end of the internal thread cylinder 410 is screwed with the screen mechanism 300, the connecting rope 460 is fixedly connected inside the internal thread cylinder 410, the other end of the connecting rope 460 is fixedly connected with a fixing block 461, one end of the fixing block 461 is fixedly connected with a rubber belt 462, the outer side wall of the main rod 110 is fixedly connected with two limiting plates 111, the rubber belt 462 is positioned between the two limiting plates 111, one end of the rubber belt 462 surrounds the outer side wall of the main rod 110 and is attached to one side of the fixing block 461, one end of the fixing block 461 is screwed with a tip screw 463 penetrating one end of the rubber belt 462, a plurality of clamping mechanisms 500 are movably sleeved with the outer side wall of the connecting rope 460, the inner thread cylinder 410 is screwed with the screen mechanism 300, then the rubber belt 462 on the connecting rope 460 is wound around the main rod 110, the rubber belt 463 penetrates through the rubber belt 462 and is screwed with the fixing block 461, the rubber belt 462 can be fixed on the main rod 110, and a user can conveniently install and detach the main rod 462, and the rubber belt 462 is limited by the two limiting plates 111, so that the rubber belt 462 cannot slide up and down on the main rod 110 at will, and the same time, the position of the main rod 460 can be adjusted by the distance of the position of the main rod 460, and the screen mechanism can be rotated with the distance of the screen mechanism 300.
The clamping mechanism 500 comprises a connecting bar 510, wherein the two opposite sides of the connecting bar 510 are respectively and rotationally connected with an arc plate 520, a connecting rope 460 is positioned between the two arc plates 520, one side of one arc plate 520 is fixedly connected with a plurality of elastic buckles 540, one side of the other arc plate 520 is fixedly connected with a plurality of clamping frames 541, the elastic buckles 540 are movably clamped in the adjacent clamping frames 541, one ends of the two arc plates 520 are respectively and fixedly connected with a clamping plate 530, the opposite sides of the two clamping plates 530 are respectively and fixedly connected with a rubber strip 531, the other ends of the inner side walls of the two arc plates 520 are respectively provided with a clamping groove 521, the two adjacent rubber strips 531 are respectively clamped in the same clamping groove 521, the two arc plates 520 are respectively and rotationally opened by opposite sides, the two arc plates 520 clamp the connecting rope 460 and then are buckled, the plurality of elastic buckles 540 are clamped in the clamping frames 541 to fix the two arc plates 520 on the connecting rope 460, after the unmanned aerial vehicle 600 pulls the screen mechanism 300 to a certain height to straighten the connecting rope 460, buckling two arc plates 520 on the plurality of clamping mechanisms 500 on the connecting rope 460, sliding the two arc plates 520 on the plurality of clamping mechanisms 500, enabling two clamping plates 530 on one clamping mechanism 500 closest to the internal thread cylinder 410 to be clamped into the other end of the internal thread cylinder 410, enabling the two clamping plates 530 on each clamping mechanism 500 to be clamped into the other end of the two arc plates 520 of one clamping mechanism 500, enabling the two rubber strips 531 on each clamping mechanism 500 to be clamped into the two clamping grooves 521 on one clamping mechanism 500, enabling a cylindrical body formed by the two buckled arc plates 520 on the plurality of clamping mechanisms 500 to be clamped with an annular body formed by the adjacent two clamping plates 530, enabling the plurality of clamping mechanisms 500 to form an integral tubular body, thereby, the connecting rope 460 is limited by the plurality of rigid clamping mechanisms 500 and kept in a straightened state, and is converted into a rigid object from an original flexible object, so that after the screen mechanism 300 is lifted off, the connecting rope 460 is not easy to be influenced by wind to generate larger shaking and bending, the stability of the screen mechanism 300 is kept, the whole screen mechanism 300 is convenient to store and install, after the plurality of clamping mechanisms 500 are mutually clamped to form a tubular body, the connecting part between the tail end of the connecting rope 460 and the main rod 110 is not covered by the clamping mechanisms 500, and the position angle of the connecting rope 460 can still be changed along with the pulling of the unmanned aerial vehicle 600.
The screen mechanism 300 includes box body 310, and box body 310 one end fixedly connected with shackle 311, and shackle 311 and the movable joint of rope hook 610, a plurality of spouts 312 have been seted up to box body 310 inside wall, and sliding connection has slide 320 between a plurality of spouts 312, slide 320 one side rotates and is connected with a plurality of branches 330, and a plurality of branch 330 both sides all are provided with the torsional spring, two torsional spring one end all with slide 320 one side fixed connection, the other end all with adjacent branch 330 lateral wall fixed connection, slide 320 one side center fixedly connected with screw 350, and screw 350 and internal screw tube 410 turn-in connection, a plurality of branch 330 one side fixedly connected with white curtain 360, through with internal screw tube 410 screw in screw rod 350, then after unmanned aerial vehicle 600 goes up the sky, control unmanned aerial vehicle 600 and remove, make slide 320 slide, until a plurality of branches 330 shift out box body 310, and a plurality of branches 330 are automatic rotation under the influence of the reset elasticity of torsional spring, make a plurality of branches 330 conflict box body 310 other end, originally receive the inside white curtain 360 of box body 310 and rotate and expand along with a plurality of branches 330, the 460 is easy to be connected with the rotation of a plurality of branches 330, the white curtain 360 is located on the side of projection mechanism is difficult to the back of a plurality of the side of the back curtain 360, can be kept the multiple carrier can be difficult to the position is pressed down by a plurality of people's 600, can be satisfied by the back curtain 320, can be stably, can be kept the position can be satisfied by the multiple carrier is difficult to the position is difficult to the back by the position is difficult to the back to the position is difficult to be satisfied, can be used by the back can be stably, can be stably has a plurality of the position 500, can be used to be stably can be stably has a plurality of the position 500, can be stably has a plurality of the position can be stably has a great stability, and can have.
The slide 320 one side has been seted up a plurality of guide slots 321, and the inside all sliding connection of a plurality of guide slots 321 has L type fixture block 340, a plurality of L type fixture block 340 and a plurality of branch 330 one-to-one, and a plurality of L type fixture block 340 all are located corresponding branch 330 one end, the barrel 420 has been cup jointed to internal thread section of thick bamboo 410 lateral wall fixed, and a plurality of J type grooves 421 have been seted up to barrel 420 one end, a plurality of J type grooves 421 inside all sliding sleeve has rubber pole 430, and a plurality of rubber pole 430 and a plurality of L type fixture block 340 one-to-one, screw in screw rod 350 with internal thread section of thick bamboo 410 one end opening part of J type groove 421 is located internal thread section of thick bamboo 410 one side, the other end opening is located adjacent L type fixture block 340 one side, make a plurality of rubber poles 430 slide along adjacent J type groove 421 and extrude partial length from adjacent J type groove 421 other end opening part, make rubber pole 430 extrude adjacent L type fixture block 340 slide, make an arm of L type fixture block 340 be located adjacent branch 330 one end position, restriction branch 330 rotates, thereby further keep the stability of branch 330, branch 330 is because of wind is moved, the other produces great and blows.
The connecting rope 460 outer side wall is located the inner screw thread section of thick bamboo 410 other end and has slidingly been cup jointed smooth section of thick bamboo 440, and smooth section of thick bamboo 440 one end fixedly connected with snap ring 450, and the fixed rubber ring 451 that has cup jointed of snap ring 450 outer side wall, the caulking groove 401 has all been seted up to the inner screw thread section of thick bamboo 410 inside wall other end and smooth section of thick bamboo 440 inside wall other end, and rubber ring 451 and two adjacent rubber strips 531 all with the inside movable joint of adjacent caulking groove 401, smooth section of thick bamboo 440 outer side wall one end has fixedly cup jointed the butt plate 441, promote smooth section of thick bamboo 440 through two arc 520 on joint mechanism 500, make the cardboard 530 card go into smooth section of thick bamboo 440 other end on two arc 520, make two rubber strips 531 card into caulking groove 401 on the smooth section of thick bamboo 440, then smooth section of thick bamboo 440 is promoted by joint mechanism 500, make the snap ring 450 card go into the other end of inner screw thread section of thick bamboo 410, and make the inside caulking groove 401 of rubber ring 451 card into interior, simultaneously, smooth section of thick bamboo 440 removes and will drive butt plate 441 and contradict a plurality of rubber rods 430, make a plurality of rubber rods 430 remove from J type 421 inside and squeeze L type fixture 340.
The placement mechanism 200 comprises a main board 210, connecting plates 211 are fixedly connected to two sides of the main board 210, a frame 220 is fixedly connected to opposite separated ends of the top surface of the main board 210 and two connecting plates 211, a rotating plate 230 is rotatably connected to one end of the main board 210, a circular hole is formed in the top surface of the rotating plate 230, a screwing bolt 231 is arranged in the circular hole, a screwing hole 131 is formed in the top surface of the connecting block 130, one end of the screwing bolt 231 is rotatably connected with the screwing hole 131, two clamping plates 240 are rotatably connected to the bottom surface of the main board 210, two clamping plates 240 are movably sleeved with the outer side walls of two adjacent clamping plates 530, a plurality of screwing holes 241 are formed in the bottom ends of the outer side walls of the two clamping plates 240, a plurality of screwing holes 241 on the two clamping plates 240 are in one-to-one correspondence, fastening screws 242 are rotatably connected between the corresponding two screwing holes 241 on different clamping plates 240, the screwing bolt 231 penetrates through the rotating plate 230 and the screwing hole 131 by placing a projector into the frame 220, when the position of the rotating plate 230 needs to be fixed, only the screwing bolt 231 needs to be screwed, the rotating plate 230 is extruded by the screwing bolt 231 to be fixed against the top surface of the connecting block 130, when the position of the screen mechanism 300 is regulated by the unmanned aerial vehicle 600, only the screwing bolt 231 needs to be unscrewed, then after the unmanned aerial vehicle 600 is lifted off, the plurality of clamping mechanisms 500 are mutually clamped on the connecting ropes 460, after the rotating plate 230 is fixed in position, the two clamping plates 240 are sleeved on the outer side walls of the two arc plates 520 on the adjacent clamping mechanisms 500, then the plurality of fastening screws 242 are screwed, the two clamping plates 240 clamp the two arc plates 520, the joint of the connecting ropes 460 and the main rod 110 is limited, the auxiliary unmanned aerial vehicle 600 stabilizes the screen mechanism 300, the clamping between the plurality of clamping mechanisms 500 is kept stable, the projector inside the plurality of frames 220 is projected onto the white screen 360, when the position of the white screen 360 is regulated by the unmanned aerial vehicle 600, the fastening screws 242 are loosened, so that the two clamping plates 240 can slide on the adjacent arc plates 520, and then when the unmanned aerial vehicle 600 drives the white screen 360 and pulls the connecting rope 460 to move in position and height, the two clamping plates 240 slide on the adjacent arc plates 520, and the projector inside the frame 220 always projects the content onto the moving white screen 360.
The inner side wall of the clamping plate 240 is fixedly connected with a plurality of thorns 243, so that the clamping arc plates 520 are firmer when the two clamping plates 240 clamp the arc plates; a threaded opening is formed in one side of the frame 220, a screwing rod 221 is screwed in the threaded opening, so that a user can rotate the screwing rod 221 to enable the screwing rod 221 to abut against the projector, and the position of the projector in the frame 220 is fixed; one end of the screwing rod 221 is rotatably connected with a gasket 222, so that the screwing rod 221 is prevented from directly abutting against the projector to damage the projector, and the direct contact of the screwing rod 221 to the projector is reduced through the gasket 222, so that the projector is protected to be intact.
Working principle: when in use, the U-shaped frame 120 at the bottom of the main rod 110 is clamped on an object on the ground, such as a ground railing, a vehicle door, a dustbin edge and the like, then a plurality of abutting screws 122 are screwed, the abutting screws 122 are abutted against the clamped object to fix, a rubber belt 462 on a connecting rope 460 bypasses the main rod 110, a pointed screw 463 passes through the rubber belt 462 and is screwed with a fixing block 461, then an internal thread cylinder 410 is screwed into a screw 350, a shackle 311 is hooked on a rope hook 610, then the rubber rods 430 are pulled out, the rubber rods 430 are pulled out of a part of an adjacent J-shaped groove 421, and the unmanned aerial vehicle 600 is controlled to lift off by a controller matched with the unmanned aerial vehicle 600;
the unmanned aerial vehicle 600 pulls the box body 310 to lift off through the rope hook 610, then the unmanned aerial vehicle 600 is controlled to fly to a position far away from the main rod 110, the connecting rope 460 is straightened, the box body 310 is pulled to move, the sliding plate 320 is pulled by the internal thread cylinder 410, the sliding plate 320 slides until the plurality of support rods 330 move out of the box body 310, the plurality of support rods 330 automatically rotate under the influence of the reset elastic force of the torsion spring, the plurality of support rods 330 are abutted against the other end of the box body 310, the white curtain 360 originally received in the box body 310 between the plurality of support rods 330 rotates and expands along with the rotation of the plurality of support rods 330, then two arc plates 520 on the plurality of clamping mechanisms 500 are separated from each other to rotate and open, the two arc plates 520 clamp the connecting rope 460 and are buckled, the plurality of elastic buckles 540 are clamped in the plurality of clamping frames 541, the two arc plates 520 are sleeved on the connecting rope 460, the plurality of clamping mechanisms 500 are sleeved on the connecting rope 460 in sequence, then the clamping mechanisms 500 are slid to the clamping mechanism 500 nearest to one end of the main rod 110, the clamping mechanisms 500 push the other clamping mechanisms 500 to rotate along with the rotation of the plurality of support rods 330, the two arc plates 500 are connected to one side of the two clamping mechanisms 500, and the two clamping mechanisms 500 are connected to one side of the two ends of the two clamping mechanisms 500 are connected to the other ends of the two tubular clamping mechanisms 500, and the two clamping mechanisms 500 are connected to the other ends of the two ends of the clamping mechanisms 500 are connected to the two ends of the connecting mechanism 500;
simultaneously, two arc plates 520 on the clamping mechanism 500 closest to one end of the internal thread cylinder 410 push the sliding cylinder 440 to move, so that two clamping plates 530 on the clamping mechanism 500 are clamped into the other end of the sliding cylinder 440, rubber strips 531 on the two clamping plates 530 are clamped into the embedded grooves 401 on the adjacent sliding cylinders 440, then the sliding cylinder 440 is pushed, a clamping ring 450 on the sliding cylinder 440 is clamped into the other end of the internal thread cylinder 410, a rubber ring 451 is clamped into the embedded grooves 401 in the internal thread cylinder 410, and simultaneously, the sliding cylinder 440 moves to drive a retaining plate 441 to abut against a plurality of rubber rods 430, so that the plurality of rubber rods 430 move from the J-shaped grooves 421 to squeeze L-shaped clamping blocks 340 to move, and a plurality of L-shaped clamping blocks 340 clamp adjacent supporting rods 330 to enable the adjacent supporting rods 330 to be unable to rotate;
then placing a plurality of projectors into a plurality of frames 220, screwing each screwing rod 221, enabling gaskets 222 on each screwing rod 221 to abut against the projectors to fix, screwing the screwing bolts 231 through the rotating plates 230 and the screwing holes 131, when the positions of the rotating plates 230 need to be fixed, only screwing the screwing bolts 231, enabling the screwing bolts 231 to press the rotating plates 230 to be fixed against the top surfaces of the connecting blocks 130, when the positions of the screen mechanisms 300 are adjusted by using the unmanned aerial vehicle 600, only unscrewing the screwing bolts 231, then, when the unmanned aerial vehicle 600 is lifted off, mutually clamping the plurality of clamping mechanisms 500 on the connecting ropes 460, fixing the positions of the rotating plates 230, sleeving two clamping plates 240 on the outer side walls of the two arc plates 520 on the adjacent clamping mechanisms 500, then tightening the plurality of fastening screws 242 to enable the two clamping plates 240 to clamp the two arc plates 520, assisting the unmanned aerial vehicle 600 to stabilize the screen mechanism 300, enabling the two clamping plates 240 to push and fasten the plurality of clamping mechanisms 500, enabling the plurality of clamping mechanisms 500 to be clamped and kept stable, opening the plurality of projectors to enable the plurality of projectors to be projected onto the white screen 360, loosening the plurality of fastening screws 242 when the unmanned aerial vehicle 600 is utilized to adjust the position of the white screen 360, enabling the two clamping plates 240 to slide on the adjacent arc plates 520, and then enabling the two clamping plates 240 to slide on the adjacent arc plates 520 and enabling the projectors inside the frame 220 to always project contents onto the moving white screen 360 when the unmanned aerial vehicle 600 drives the white screen 360 and pulls the connecting ropes 460 to move in position;
after the use is finished, the unmanned aerial vehicle 600 is controlled to fall to the ground by the controller, the sliding plate 320 is pressed by force to reset, the other end edge of the box body 310 can be abutted against the plurality of supporting rods 330, the plurality of supporting rods 330 are abutted against and reset, the white curtain 360 and the plurality of supporting rods 330 slide into the box body 310 along with the sliding plate 320, then the two arc plates 520 on the plurality of clamping mechanisms 500 slide to enable the plurality of clamping mechanisms 500 to be separated from the mutually clamped state, then the two arc plates 520 are rotated away from each other to enable the two arc plates to be separated from the connecting rope 460, the internal thread cylinder 410 is unscrewed from the screw 350, then the abutting screw 122, the pointed screw 463, the screwing bolt 231 and the fastening screw 242 are unscrewed, the plurality of projectors are taken out from the inside of the box body 220, and the plurality of clamping mechanisms 500, the connecting mechanism 400, the fixing mechanism 100, the placing mechanism 200 and the screen mechanism 300 are stored separately.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative and explanatory of the invention, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.
Claims (6)
1. The mobile projection equipment for creative culture advertisements comprises an unmanned aerial vehicle (600) and is characterized in that a rope hook (610) is fixedly connected to the bottom end of the unmanned aerial vehicle (600), a screen mechanism (300) is arranged at one end of the rope hook (610), a connecting mechanism (400) is arranged on one side of the screen mechanism (300), a plurality of clamping mechanisms (500) are arranged on the connecting mechanism (400), a fixing mechanism (100) is arranged on one side of the connecting mechanism (400), and a placing mechanism (200) is arranged between the fixing mechanism (100) and the connecting mechanism (400);
the fixing mechanism (100) comprises a main rod (110), the top end of the main rod (110) is fixedly connected with a connecting block (130), the connecting block (130) is movably connected with the placing mechanism (200), the bottom end of the main rod (110) is fixedly connected with a U-shaped frame (120), a plurality of screw holes (121) are formed in two opposite sides of the U-shaped frame (120), supporting screwing of the screw holes (121) is performed, and the outer side wall of the main rod (110) is movably sleeved with the connecting mechanism (400);
the connecting mechanism (400) comprises an internal thread cylinder (410), one end of the internal thread cylinder (410) is screwed with the screen mechanism (300), a connecting rope (460) is fixedly connected inside the internal thread cylinder (410), the other end of the connecting rope (460) is fixedly connected with a fixed block (461), one end of the fixed block (461) is fixedly connected with a rubber belt (462), the outer side wall of the main rod (110) is fixedly connected with two limiting plates (111), the rubber belt (462) is positioned between the two limiting plates (111), one end of the rubber belt (462) winds the outer side wall of the main rod (110) and is attached to one side of the fixed block (461), one side of the fixed block (461) is screwed with a pointed screw (463) with one end penetrating through one end of the rubber belt (462), and the clamping mechanisms (500) are movably sleeved on the outer side wall of the connecting rope (460).
The clamping mechanism (500) comprises a connecting strip (510), arc plates (520) are rotationally connected to two opposite sides of the connecting strip (510), the connecting rope (460) is located between the two arc plates (520), one side of one arc plate (520) is fixedly connected with a plurality of elastic buckles (540), one side of the other arc plate (520) is fixedly connected with a plurality of clamping frames (541), the elastic buckles (540) are movably clamped inside the adjacent clamping frames (541), two clamping plates (530) are fixedly connected to one end of each arc plate (520), rubber strips (531) are fixedly connected to the opposite sides of the two clamping plates (530), clamping grooves (521) are formed in the other end of the inner side wall of each arc plate (520), and the two adjacent rubber strips (531) are clamped inside the same clamping groove (521);
the screen mechanism (300) comprises a box body (310), one end of the box body (310) is fixedly connected with a shackle (311), the shackle (311) is movably clamped with a rope hook (610), a plurality of sliding grooves (312) are formed in the inner side wall of the box body (310), sliding plates (320) are connected between the sliding grooves (312) in a sliding mode, a plurality of struts (330) are rotatably connected to one side of each sliding plate (320), torsion springs are arranged on two sides of each strut (330), one end of each torsion spring is fixedly connected with one side of each sliding plate (320), the other end of each torsion spring is fixedly connected with the side wall of each adjacent strut (330), a screw (350) is fixedly connected to the center of one side of each sliding plate (320), the screw (350) is connected with an inner threaded cylinder (410) in a screwing mode, and a plurality of white curtain (360) are fixedly connected to one side of each strut (330);
the placement machine structure comprises a main board (210), connecting plates (211) are fixedly connected to two sides of the main board (210), two connecting plates (211) are oppositely arranged, one end of the top surface of the main board (210) is fixedly connected with a frame body (220) in a back-to-back mode, one end of the main board (210) is rotationally connected with a rotating plate (230), a circular hole is formed in the top surface of the rotating plate (230), a screwing bolt (231) is arranged in the circular hole, a screwing hole (131) is formed in the top surface of the connecting block (130), one end of the screwing bolt (231) is screwed with the screwing hole (131), two clamping plates (240) are rotationally connected to the bottom surface of the main board (210), two clamping plates (240) are movably sleeved on the outer side walls of two adjacent clamping plates (530), a plurality of screwing holes (241) are formed in the bottom ends of the outer side walls of the two clamping plates (240), the plurality of screwing holes (241) are in one-to-one correspondence, and fastening screws (242) are screwed between the corresponding two screwing holes (241) on different clamping plates (240).
2. The mobile projection device for creative culture advertisements according to claim 1, wherein a plurality of guide slots (321) are formed in one side of the sliding plate (320), the inside of each guide slot (321) is slidably connected with an L-shaped clamping block (340), the L-shaped clamping blocks (340) are in one-to-one correspondence with the support rods (330), the L-shaped clamping blocks (340) are located at one end of the corresponding support rod (330), a cylinder body (420) is fixedly sleeved on the outer side wall of the internal thread cylinder (410), a plurality of J-shaped slots (421) are formed in one end of the cylinder body (420), rubber rods (430) are slidably sleeved in the J-shaped slots (421), and the rubber rods (430) are in one-to-one correspondence with the L-shaped clamping blocks (340).
3. The mobile projection device for creative culture advertisements according to claim 1, wherein the outer side wall of the connecting rope (460) is located at the other end of the inner threaded cylinder (410) and is in sliding connection with the sliding cylinder (440), one end of the sliding cylinder (440) is fixedly connected with the clamping ring (450), the outer side wall of the clamping ring (450) is fixedly connected with the rubber ring (451), the other end of the inner side wall of the inner threaded cylinder (410) and the other end of the inner side wall of the sliding cylinder (440) are both provided with the caulking grooves (401), the rubber ring (451) and two adjacent rubber strips (531) are both movably clamped with the inner parts of the adjacent caulking grooves (401), and one end of the outer side wall of the sliding cylinder (440) is fixedly connected with the retaining plate (441).
4. The mobile projection device for creative culture advertisements of claim 1, wherein a plurality of abutments (243) are fixedly connected to the inner side wall of the clamping plate (240).
5. The mobile projection device for creative culture advertisement according to claim 1, wherein a threaded opening is formed on one side of the frame (220), and a screwing rod (221) is screwed in the threaded opening.
6. The mobile projection device for creative culture advertisement according to claim 5, wherein a gasket (222) is rotatably connected to one end of the screwing rod (221).
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| CN202210266104.1A CN114758596B (en) | 2022-03-17 | 2022-03-17 | Mobile projection equipment for creative culture advertisement |
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| CN202210266104.1A CN114758596B (en) | 2022-03-17 | 2022-03-17 | Mobile projection equipment for creative culture advertisement |
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| CN114758596A (en) | 2022-07-15 |
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