CN111120806A - Self-adjusting scientific and technological management project display rotating device - Google Patents

Self-adjusting scientific and technological management project display rotating device Download PDF

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Publication number
CN111120806A
CN111120806A CN202010057036.9A CN202010057036A CN111120806A CN 111120806 A CN111120806 A CN 111120806A CN 202010057036 A CN202010057036 A CN 202010057036A CN 111120806 A CN111120806 A CN 111120806A
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CN
China
Prior art keywords
bevel gear
sleeve
wind
screw rod
rotating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010057036.9A
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Chinese (zh)
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CN111120806B (en
Inventor
陈詠芹
倪丹
张惠强
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Xiamen Huaxia University
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Xiamen Huaxia University
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Priority to CN202010057036.9A priority Critical patent/CN111120806B/en
Publication of CN111120806A publication Critical patent/CN111120806A/en
Application granted granted Critical
Publication of CN111120806B publication Critical patent/CN111120806B/en
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Anticipated expiration legal-status Critical

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/043—Allowing translations
    • F16M11/046—Allowing translations adapted to upward-downward translation movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/04—Automatic control; Regulation
    • F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
    • F03D7/048—Automatic control; Regulation by means of an electrical or electronic controller controlling wind farms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/30—Wind motors specially adapted for installation in particular locations
    • F03D9/34—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/02—Locking means
    • F16M2200/021—Locking means for rotational movement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines

Abstract

The utility model provides a show rotating device from adjustment scientific and technological management project, convert wind-force into the power that elevation structure goes up and down and angular adjustment structure pivoted power through wind-force transmission structure, and go on with the rotation action order, when wind-force is less, only can drive elevation structure and move, after wind-force surpassed the certain degree, the angular adjustment structure of redriving moved, carry out certain angular rotation adjustment to the show screen, make show screen side face wind-force, thereby make this device can carry out automatic adjustment according to wind-force, the life of device has further been improved.

Description

Self-adjusting scientific and technological management project display rotating device
Technical Field
The invention relates to the technical field of scientific and technological information management, in particular to a self-adjusting scientific and technological management project display rotating device.
Background
Scientific project management is the overall process management of scientific research activities performed in project form, and is a typical high-level knowledge management practice activity. In the actual work, scientific and technological management's project is many, has a lot of scientific and technological management projects to show, and among the prior art, the used show support frame of display device is fixed knot structure, can not adapt to outdoor wind-force's change and carry out dynamic adjustment, consequently, its life can receive very big restriction. For example, patent document 1 discloses a technology management project display rack with adjustable height, but the height adjustment is manually adjusted and is not automatically adjusted, and the technology management project display rack does not consider the influence of wind force on the structure of the display rack if the technology management project display rack is outdoors, so that the technology management project display rack has a narrow application range and a not very long service life; as patent document 2 still, it discloses an outdoor portable administrative management show shelf structure, it passes through mounting bracket 2 as bearing structure, and through setting up an extra locating lever 3, make it can prevent that electronic information show screen from being blown down by wind in the use, however, this structure anti-wind ability is limited, receive the great condition of wind-force, because the show screen bears wind-force always, consequently, it has the condition of being blown down by wind when the great condition of wind-force, simultaneously, because mounting bracket 2 and locating lever 3 receive wind always and blow to the show screen and bear the bending force, consequently, its life-span also can receive certain restriction.
[ patent document 1] CN 207765065U;
[ patent document 2] CN 106782227B.
In summary, in the prior art, the supporting devices used for the scientific and technological project display screen can only support the display screen, and cannot adjust the height and angle of the display screen according to the size and direction of the wind force applied to the display screen, so that the scientific and technological project display screen in the prior art can only passively bear the influence caused by the wind force when the wind blows outdoors, cannot actively adjust the height and angle of the display screen according to the size and direction of the wind force, and does not provide a self-adjusting scientific and technological management project display rotating device.
Disclosure of Invention
In order to overcome the defects of the prior scientific and technological management project display support frame, the invention provides a technical scheme, in particular to a self-adjusting scientific and technological management project display rotating device which comprises a wind power transmission structure, a lifting structure, an angle adjusting structure, a chassis structure, a reversing box A, a reversing box B and a reversing box C, wherein the angle adjusting structure is rotatably arranged on the chassis structure, the lifting structure is slidably arranged on the angle adjusting structure, the left end of the wind power transmission structure is connected with the lifting structure at the left end through the reversing box B, the right end of the wind power transmission structure is connected with the left end of the reversing box A, the right end of the reversing box A is connected with the lifting structure at the right end through the reversing box C, the wind power transmission structure comprises a wind wheel, blades and a bevel gear transmission mechanism, the wind wheel is of a hollow cylinder structure, the blades are uniformly arranged, the wind wheel can simultaneously convert the rotation of a wind wheel after blowing blades into the rotation input of a right bevel gear C in a reversing box B and the rotation input of a left bevel gear B in the reversing box A, the reversing box A also comprises a lower bevel gear B, a lower rotating shaft B and a right bevel gear B, the lower rotating shaft B is fixedly arranged at the lower end of the reversing box A, the lower bevel gear B is rotatably arranged at the upper end of the lower rotating shaft B, the left bevel gear B, the lower bevel gear B and the right bevel gear B are mutually meshed, the right bevel gear B is connected with the left bevel gear C in the reversing box C through a transmission shaft C, the reversing box B also comprises a lower bevel gear C, the right bevel gear C is meshed with the lower bevel gear C, the reversing box C also comprises a lower bevel gear D, the left bevel gear C is meshed with the lower bevel gear D, the lifting structure comprises a left mounting sleeve, a left screw rod, a right mounting sleeve and a right screw rod, the left mounting, the left screw rod is fixedly arranged at the lower end of the lower bevel gear C, the right screw rod is fixedly arranged at the lower end of the lower bevel gear D, the left screw rod and the right screw rod are respectively and rotatably arranged in the left mounting sleeve and the right mounting sleeve, and the lower ends of the left screw rod and the right screw rod penetrate through the square frame of the angle adjusting structure and are respectively meshed with threads in the left screw rod shaft sleeve and threads in the right screw rod shaft sleeve.
Preferably, the chassis structure includes chassis, support column, butt dish and gyro wheel, and the support column is fixed to be set up on the chassis, and the butt dish rotates the cover through the gyro wheel and locates outside the support column, and the fixed cover of support column upper end is equipped with the rotation cover through the key, guarantees that the rotation cover can not take place relative rotation relative to the support column, rotates the cover and rotates and set up in square frame.
Preferably, the angle adjusting structure comprises a square frame, a left screw shaft sleeve, a right screw shaft sleeve, a rotating sleeve, a steel wire/belt A and a steel wire/belt B, wherein the rotating sleeve, the left screw shaft sleeve and the right screw shaft sleeve are rotatably arranged in the square frame, the rotating sleeve is positioned in the middle of the left screw shaft sleeve and the right screw shaft sleeve, the steel wire/belt A and the steel wire/belt B are wound on the rotating sleeve in the same winding direction, the steel wire/belt A extends out of one side of the rotating sleeve and then winds the outer side of the left screw shaft sleeve, and the steel wire/belt B extends out of the other side of the rotating sleeve and then winds the outer side of the right screw shaft sleeve.
Preferably, the square frame is hollow structure, left lead screw axle sleeve and right lead screw axle sleeve all include the axle sleeve main part, axle sleeve upper edge, the axle sleeve lower limb, axle sleeve upper edge sets up in the upper end of axle sleeve main part, the axle sleeve lower limb sets up in the lower extreme of axle sleeve main part, it includes the rotation cover main part to rotate the cover upper edge, it keeps off and rotates the cover lower limb to rotate the cover middle part, it sets up in the upper end of rotating the cover main part to rotate the fixed edge of cover, it sets up in the lower extreme of rotating the cover main part to rotate the fixed middle part that sets up in rotating the cover main part of cover, separate the rotation cover into two sections upper and lower reel structures, wire rope/area A coils in upper segment reel structure, wire rope/area B coils in lower section reel.
Preferably, a snap spring is arranged between the rotating sleeve and the square frame, the snap spring ensuring that the wire rope/belt a and the wire rope/belt B are all wound on the rotating sleeve and enabling the wire rope/belt a and the wire rope/belt B to tighten the left and right lead screw bushings.
Preferably, when the wind power is large enough, the left screw rod and the right screw rod continue to descend, when the lower end of the screw rod abuts against the abutting disc, the left screw rod and the right screw rod stop descending, if the wind power is large, the left screw rod and the right screw rod continue to be driven to rotate, the left screw rod shaft sleeve and the right screw rod shaft sleeve can be driven to rotate together through rotation of the screw rod, torsion of a torsion spring between the rotating sleeve and the square frame is overcome, the steel wire rope/belt A and the steel wire rope/belt B are wound on the left screw rod shaft sleeve and the right screw rod shaft sleeve respectively, the square frame is driven to rotate relative to the supporting column, and accordingly the angle of the display screen is adjusted according to the.
Preferably, all set up buffer spring between left side installation cover and square frame, right side installation cover and square frame for after not having wind-force, buffer spring drive left side installation cover and right side installation cover rise, and the show screen height restores to the normal position, and simultaneously, the torsional spring drive rotates the cover and resets, adopts wind sensor to detect whether there is wind-force.
Preferably, bevel gear drive mechanism includes left bevel gear A, right bevel gear B, the last bevel gear, lower bevel gear A, the upper rotating shaft, lower pivot A, the upper rotating shaft is fixed to be set up in the inboard upper end of wind wheel, lower pivot A is fixed to be set up in the inboard lower extreme of wind wheel, the last bevel gear rotates and sets up in the upper rotating shaft lower extreme, lower bevel gear A rotates and sets up in lower pivot A upper end, left bevel gear A is relative with right bevel gear B, it is relative with lower bevel gear A to go up the bevel gear, and left bevel gear A, right bevel gear B, the last bevel gear, intermeshing between the lower bevel gear A, left bevel gear A passes through transmission shaft A and connects right bevel gear C, right bevel gear A passes through transmission shaft B and connects left.
Preferably, a wind direction changing structure is further arranged on the outer side of the wind power transmission structure, the wind direction changing structure comprises an outer support, a sliding rail, a wind shielding sliding plate, an adjusting seat and a telescopic cylinder, the outer support is of a box-shaped structure, through openings are formed in the front face and the rear face of the outer support, the sliding rail is arranged on the left side and the right side of each through opening, the wind shielding sliding plate is arranged in the sliding rail in a sliding mode, the adjusting seat is arranged on the inner side of the wind shielding sliding plate, the telescopic cylinder is fixedly arranged at the bottom end of the outer support, the top end of the telescopic cylinder is connected with the adjusting seat, the wind shielding sliding plate is driven by the telescopic cylinder to vertically lift and slide in the sliding rail, and the height of the wind shielding sliding plate.
Preferably, the upper edge of the shaft sleeve is clamped on the upper side of the square frame, and the lower edge of the shaft sleeve is clamped on the lower side of the square frame, so that the shaft sleeve cannot move axially; the upper edge of the rotating sleeve is clamped on the upper side of the directional frame, and the lower edge of the rotating sleeve is clamped on the lower side of the square frame, so that the rotating sleeve cannot move axially.
The invention has the beneficial effects that:
1) the self-adjusting scientific and technological management project display rotating device is used for supporting a display screen, can self-adjust the height and the angle of the display screen when the front face of the display screen is subjected to larger wind power, and has the sequential adjustment steps, when the wind power is smaller, the height of the display screen can be adjusted to be lower, so that the gravity center of the whole display device is reduced, the bending force borne by the supporting device is smaller, the service life of the device is prolonged, and when the wind power is still larger after the gravity center is adjusted to be lower, the display screen is rotated along the axis of the supporting device, so that the side face of the display screen faces the wind blowing direction, and the influence of the wind power on the structure and the service life of the supporting device can be reduced to the greatest extent;
2) the self-adjusting scientific and technical management project display rotating device comprises a wind power transmission structure, a reversing box, a lifting structure, an angle adjusting structure and an underframe structure, wherein a wind wheel with blades is used in the wind power transmission structure to collect wind power borne by a display screen, the wind power is converted into rotation of the wind wheel, and then the rotation is converted into rotation of a screw rod in the lifting structure through the reversing box, so that the whole supporting frame structure is driven to lift, and the lifting degree of the supporting frame is adjusted according to the wind power;
3) furthermore, according to the angle adjusting structure in the self-adjusting scientific and technical management project display rotating device, when the bottom end of the lead screw in the lifting structure is in contact with the underframe structure, if the wind power is still large, the wind power is converted into the rotation of the lead screw, the lead screw shaft sleeve in the angle adjusting structure is driven to rotate, the lead screw shaft sleeve is driven to pull the steel wire rope/belt, the rotating sleeve is driven to rotate, the inside of the rotating sleeve is connected with the underframe structure through the key structure, and therefore the angle of the display screen connected to the lifting structure can be adjusted, and the side face of the display screen is turned to the blowing direction;
4) furthermore, in order to ensure that the display screen can be kept at a preset position, brake structures are arranged on the screw rod shaft sleeve and the rotating sleeve, so that the display screen can be locked when rotating for a certain angle;
5) the wind direction changing structure is sleeved outside the wind power transmission structure, and the wind direction changing structure is used for enabling a wind shielding sliding plate of the wind direction changing structure to be positioned at the lower part and shielding blades at the lower half part of a wind wheel according to the blowing direction of wind detected by the wind direction sensor when the wind blows from the front side to the back side of the display screen, so that only the blades at the upper plate part are influenced by the wind power and can rotate, the wind blowing to the display screen is used as power to drive the supporting structure to act, otherwise, if the wind blows from the back side to the front side of the display screen, the wind shielding sliding plate is positioned at the upper half part, and the same action can be carried out by adapting to different wind directions;
6) the wind power transmission device comprises a wind wheel, a wind power transmission structure and a reset spring structure, wherein the wind wheel is axially converted into rotation along the wind wheel through a bevel gear structure, the left side and the right side of the wind power transmission structure can synchronously rotate, the synchronization effect is good, the reset spring structure is used for providing reset energy after wind becomes small, so that the device can reset, and the reset spring specifically comprises a clamp spring arranged in a rotating sleeve and a spring arranged at the lower part of a lifting structure;
7) in the angle adjusting structure, the rotating sleeve is divided into an upper independent winding structure and a lower independent winding structure, a steel wire rope/belt A is wound in the upper winding structure, a steel wire rope/belt B is wound in the lower winding structure, the winding directions of the steel wire rope/belt A and the steel wire rope/belt B are the same, the steel wire rope/belt A extends out of the upper end of the rotating sleeve and then is wound on a screw rod shaft sleeve, the steel wire rope/belt B extends out of the lower end opposite to the upper end of the rotating sleeve and then is wound on another screw rod shaft sleeve, after a screw rod with larger wind power is abutted to the underframe structure, the screw rod continues to rotate to drive the screw rod shaft sleeve to continue rotating, so that the clamp spring acting force on the rotating sleeve is overcome, the steel wire rope/belt A and the steel wire rope/belt B are respectively pulled out of the rotating sleeve and wound on the screw rod, because chassis structure passes through key structure and rotates the cover and be connected, from this for square frame rotates for chassis structure, thereby finally realizes bearing structure and shows the screen angle according to wind-force automatic adjustment, if wind-force is big enough, then can make the show screen rotatory 90, realizes that the show screen side blows the direction to the wind, guarantees device life.
Drawings
FIG. 1 is a schematic structural view of a self-adjusting scientific and technical management project display rotating device according to the present invention;
FIG. 2 is a top view of the angle adjustment structure of the present invention;
fig. 3 is a view a-a of fig. 1.
Description of the reference symbols
1. A wind power transmission structure; 2. a lifting structure; 3. an angle adjusting structure; 4. a chassis structure; 5. a reversing box A; 6. a reversing box B; 7. a reversing box C; 8. an upper bevel gear; 9. a lower bevel gear A; 10. a left bevel gear A; 11. a right bevel gear A; 12. an upper rotating shaft; 13. a lower rotating shaft A; 14. a transmission shaft A; 15. a transmission shaft B; 16. a left bevel gear B; 17. a right bevel gear B; 18. a lower bevel gear B; 19. a lower rotating shaft B; 20. a transmission shaft C; 21. a left bevel gear C; 22. a right bevel gear C; 23. a lower bevel gear C; 24. a left mounting sleeve; 25. a right mounting sleeve; 26. a left lead screw; 27. a right screw rod; 28. a square frame; 29. rotating the sleeve; 30. a left lead screw shaft sleeve; 31. a right lead screw shaft sleeve; 32. wire rope/belt a; 33. wire rope/belt B; 34. a chassis; 35. a support pillar; 36. a butting tray; 37. a roller; 38. a wind direction changing structure; 39. an outer support; 40. a wind-shielding sliding plate; 41. a slide rail; 42. an adjusting seat; 43. a telescopic cylinder; 44. a shaft sleeve main body; 45. the upper edge of the shaft sleeve; 46. the lower edge of the shaft sleeve; 47. a rotating sleeve main body; 48. the upper edge of the sleeve is rotated; 49. a middle gear of the rotating sleeve; 50. rotating the lower edge of the sleeve; 51. a wind wheel; 52. a blade; 53. a bevel gear transmission mechanism; 54. a lower bevel gear D; 55. a buffer spring.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to be limiting in any way, and any modifications or alterations based on the teachings of the present invention are intended to fall within the scope of the present invention.
As shown in fig. 1-3, the self-adjusting scientific and technical management project display rotating device of the invention comprises a wind power transmission structure 1, a lifting structure 2, an angle adjusting structure 3, a chassis structure 4, a reversing box a5, a reversing box B6 and a reversing box C7, wherein the angle adjusting structure 3 is rotatably arranged on the chassis structure 4, the lifting structure 2 is slidably arranged on the angle adjusting structure 3, the left end of the wind power transmission structure 1 is connected to the lifting structure 2 at the left end through the reversing box B6, the right end of the wind power transmission structure 1 is connected to the left end of the reversing box a5, the right end of the reversing box a5 is connected to the lifting structure 2 at the right end through the reversing box C7, the wind power transmission structure 1 comprises a wind wheel 51, blades 52 and a bevel gear transmission mechanism 53, the wind wheel 51 is a hollow cylinder structure, the blades 52 are uniformly arranged at the periphery of the wind wheel 51 along, the wind wheel 51 rotation after the wind blowing blades 52 can be converted into the rotation input of a right bevel gear C22 in the reversing box B6 and the rotation input of a left bevel gear B16 in the reversing box A5 at the same time, the reversing box A5 further comprises a lower bevel gear B18, a lower rotating shaft B19 and a right bevel gear B17, the lower rotating shaft B19 is fixedly arranged at the lower end of the reversing box A5, the lower bevel gear B18 is rotatably arranged at the upper end of a lower rotating shaft B19, the left bevel gear B16, the lower bevel gear B18 and the right bevel gear B17 are mutually meshed, the right bevel gear B17 is connected with the left bevel gear C17 in the reversing box C17 through a transmission shaft C17, the reversing box B17 further comprises a lower bevel gear C17, the right bevel gear C17 is meshed with the lower bevel gear C17, the left bevel gear C17 is meshed with the lower bevel gear D17, the lifting structure 2 comprises a left mounting sleeve 24, a right screw rod mounting sleeve 25 and a fixed screw rod mounting sleeve B17, the right mounting sleeve 25 is fixedly connected to the lower end of the reversing box C7, the left lead screw 26 is fixedly arranged at the lower end of the lower bevel gear C23, the right lead screw 27 is fixedly arranged at the lower end of the lower bevel gear D54, the left lead screw 26 and the right lead screw 27 are respectively and rotatably arranged in the left mounting sleeve 24 and the right mounting sleeve 25, a display screen is fixedly arranged between the left mounting sleeve 24 and the right mounting sleeve 25, the lower end of the left lead screw 26 and the lower end of the right lead screw 27 both penetrate through the square frame 28 of the angle adjusting structure 3 and are respectively meshed with the thread in the left lead screw shaft sleeve 30 and the thread in the right lead screw shaft sleeve 31, so that when the wind power transmission structure 1 rotates under the action of wind power, the rotation of the left lead screw 26 and the right lead screw 27 is converted through a series of transmission structures, the left lead screw 26 and the right lead screw 27 are driven to rotate in the left lead screw shaft sleeve 30 and the right lead screw shaft sleeve 31, thereby can make left lead screw 26 and right lead screw 27 slide from top to bottom for square frame 28 to the adjustment sets up the height of the show screen in left installation cover 24 and right installation cover 25, and wind-force is big more, and the height of show screen is lower, reduces the focus of high back whole device and reduces, thereby its bending force to the chassis structure reduces, has reduced the damage to equipment, thereby has improved the life-span of equipment.
Further, the underframe structure 4 comprises a base plate 34, a support pillar 35, a butt-joint disc 36 and a roller 37, the support pillar 35 is fixedly arranged on the base plate 34, the butt-joint disc 36 is rotatably sleeved outside the support pillar 35 through the roller 37, the upper end of the support pillar 35 is fixedly sleeved with a rotating sleeve 29 through a key, and the rotating sleeve 29 is rotatably arranged in the square frame 28.
Further, the angle adjusting structure 3 includes a square frame 28, a left screw shaft sleeve 30, a right screw shaft sleeve 31, a rotating sleeve 29, a wire rope/belt a32 and a wire rope/belt B33, wherein the rotating sleeve 29, the left screw shaft sleeve 30 and the right screw shaft sleeve 31 are all rotatably disposed in the square frame 28, the rotating sleeve 29 is located in the middle of the left screw shaft sleeve 30 and the right screw shaft sleeve 31, the wire rope/belt a32 and the wire rope/belt B33 are all wound on the rotating sleeve 29 in the same winding direction, as shown in fig. 2, the wire rope/belt a32 extends out from one side of the rotating sleeve 29 and then winds around the outer side of the left screw shaft sleeve 30, and the wire rope/belt B33 extends out from the other side of the rotating sleeve 29 and then winds around the outer side of the right screw shaft sleeve 31.
Further, the square frame 28 is a hollow structure, the left lead screw shaft sleeve 30 and the right lead screw shaft sleeve 31 both include a sleeve main body 44, a sleeve upper edge 45 and a sleeve lower edge 46, the sleeve upper edge 45 is disposed at the upper end of the sleeve main body 44, the sleeve lower edge 46 is disposed at the lower end of the sleeve main body 44, the rotating sleeve 29 includes a rotating sleeve main body 47, a rotating sleeve upper edge 48, a rotating sleeve middle stopper 49 and a rotating sleeve lower edge 50, the rotating sleeve upper edge 48 is fixedly disposed at the upper end of the rotating sleeve main body 47, the rotating sleeve lower edge 50 is fixedly disposed at the lower end of the rotating sleeve main body 47, the rotating sleeve middle stopper 49 is fixedly disposed at the middle of the rotating sleeve main body 47 to divide the rotating sleeve 29 into an upper section and a lower section of a drum structure, the steel wire rope/belt a32 is wound in the upper section of drum structure, and the.
Further, a snap spring is arranged between the rotary sleeve 29 and the square frame 28, the snap spring ensures that the steel wire/belt a32 and the steel wire/belt B33 are all wound on the rotary sleeve 29, and enables the steel wire/belt a32 and the steel wire/belt B33 to tighten the left screw shaft sleeve 30 and the right screw shaft sleeve 31, as shown in fig. 2, so that the left screw shaft sleeve 30 and the right screw shaft sleeve 31 can bear a certain degree of counterclockwise rotating force, so that when the left screw 26 and the right screw 27 both rotate counterclockwise, the left screw shaft sleeve 30 and the right screw shaft sleeve 31 can be ensured to be still static relative to the square frame 28, the screws are ensured to slide up and down, and the left screw shaft sleeve 30 and the right screw shaft sleeve 31 only play a guiding role.
Further, when the wind power is large enough, the left screw rod 26 and the right screw rod 27 continue to descend, when the lower end of the screw rod abuts against the abutting disc 36, the left screw rod and the right screw rod stop descending, and if the wind power is large, the left screw rod and the right screw rod are continuously driven to rotate, the rotation of the screw rods drives the left screw rod shaft sleeve 30 and the right screw rod shaft sleeve 31 to rotate together, so that the torsion of the torsion spring between the rotating sleeve 39 and the square frame 28 is overcome, the steel wire rope/belt a32 and the steel wire rope/belt B33 are respectively wound on the left screw rod shaft sleeve 30 and the right screw rod shaft sleeve 31, the square frame 28 is driven to rotate relative to the supporting column 35, and as shown in fig. 2, the square frame 28 is driven to rotate clockwise, and the display screen angle is adjusted according.
Further, in order to ensure that the force borne by the display screen in strong wind is small, a band-type brake mechanism tightly holding the rotating sleeve 29 can be arranged on the square frame 28, so that the square frame 28 is locked after rotating for 90 degrees, and the side surface of the display screen is ensured to be opposite to the wind direction.
Further, in order to ensure that the rotating device can automatically reset after wind power is reduced, buffer springs 55 are arranged between the left mounting sleeve 24 and the square frame 28 and between the right mounting sleeve 25 and the square frame 28, so that after no wind power exists, the buffer springs 55 drive the left mounting sleeve 24 and the right mounting sleeve 25 to ascend, the height of the display screen is restored to the original position, meanwhile, the torsion spring drives the rotating sleeve 29 to reset, and a wind sensor can be adopted to detect whether wind power exists.
Further, the bevel gear transmission mechanism 53 comprises a left bevel gear a10, a right bevel gear B19, an upper bevel gear 8, a lower bevel gear A9, an upper rotating shaft 12 and a lower rotating shaft a13, the upper rotating shaft 12 is fixedly arranged at the upper end of the inner side of the wind wheel 51, the lower rotating shaft a13 is fixedly arranged at the lower end of the inner side of the wind wheel 51, the upper bevel gear 8 is rotatably arranged at the lower end of the upper rotating shaft 12, the lower bevel gear A9 is rotatably arranged at the upper end of the lower rotating shaft a13, the left bevel gear A9 is opposite to the right bevel gear B19, the upper bevel gear 8 is opposite to the lower bevel gear A9, the left bevel gear a10, the right bevel gear B19, the upper bevel gear 8 and the lower bevel gear A9 are engaged with each other, the left bevel gear a10 is connected with the right bevel gear C22 through.
Further, a wind direction changing structure 38 is further arranged on the outer side of the wind power transmission structure 1, the wind direction changing structure 38 comprises an outer support 39, slide rails 41, a wind shielding sliding plate 40, an adjusting seat 42 and a telescopic cylinder 43, the outer support 39 is of a box-shaped structure, through openings are formed in the front and back faces of the outer support, the slide rails 41 are arranged on the left and right sides of the through openings, the wind shielding sliding plate 40 is arranged in the slide rails 41 in a sliding mode, the adjusting seat 42 is arranged on the inner side of the wind shielding sliding plate 40, the telescopic cylinder 43 is fixedly arranged at the bottom end of the outer support 39, the top end of the telescopic cylinder 43 is connected with the adjusting seat 42, the wind shielding sliding plate 40 is driven by the telescopic cylinder 43 to vertically lift and slide in the slide rails 41, and the height of the wind shielding sliding plate 40 is the height from the bottom end of the outer support. For example, it blows the back from the show screen front to detect wind through wind sensor or wind direction sensor for telescopic cylinder 43 contracts, keep out the wind slide and be located the lower extreme, only first blade atress this moment, the drive wind wheel is rotatory, if wind sensor detects wind and blows preceding from the show screen back, make telescopic cylinder 43 stretch out, keep out the wind slide and be located the upper end, only the blade atress of lower half this moment, the drive wind wheel rotates according to same direction, thereby can adapt to different wind directions.
Furthermore, the upper edge 45 of the shaft sleeve is clamped on the upper side of the square frame 28, and the lower edge 46 of the shaft sleeve is clamped on the lower side of the square frame 28, so that the shaft sleeve cannot move axially; the upper edge 48 of the rotating sleeve is clamped on the upper side of the direction frame 28, and the lower edge 50 of the rotating sleeve is clamped on the lower side of the square frame 28, so that the rotating sleeve cannot move axially.
Further, the support column 35 limits the downward movement of the rotating sleeve 29 through a boss structure, and a bayonet is arranged at the upper end of the support column 35 to limit the upward movement of the rotating sleeve 29.
Further, the chassis is disc-shaped structure to guarantee that the display screen can both carry out firm support rotating to any angle.
The working process of the self-adjusting scientific and technical management project display rotating device is as follows: when the front or the back of the display screen senses wind, the wind force and/or the wind direction sensor detects the direction of the wind, so that the telescopic cylinder 43 of the wind direction changing structure 38 is controlled to act, the wind shielding sliding plate 40 is driven to move up and down, the position of a blade receiving the wind is selected, the wind wheel 51 rotates, the wind wheel passes through the reversing box structure and then is transmitted to the screw rod of the lifting structure 2 to rotate, the screw rod is meshed with the screw rod shaft sleeve, so that the screw rod is driven to move down in the square frame 28, the gravity center of the display screen is lowered, when the wind force is high, the screw rod still rotates and descends, when the wind wheel is abutted to the abutting disc 36, the screw rod continues to rotate, so that the torsion of a torsion spring between the rotating sleeve 29 and the square frame 28 is overcome, the screw rod shaft sleeve is driven to rotate, the steel wire rope/belt winding screw rod shaft sleeve is, if wind power is large enough, the display screen continues to rotate, after the display screen rotates to 90 degrees, the brake mechanism on the square frame 28 brakes the rotating sleeve 29 tightly, the side face of the display screen keeps the same as the wind direction, the influence of the wind power on the display screen structure is reduced to the maximum extent, finally, when the wind sensor detects no wind, or when the wind power is small, if breeze occurs, the brake mechanism releases the rotating sleeve, the torsion spring between the rotating sleeve 29 and the square frame 28 and the reset spring between the mounting sleeve and the square frame are used as driving force, and the device resets for next use.
According to the self-adjusting scientific and technological management project display rotating device, wind power is converted into lifting structure lifting power and angle adjustment structure pivoted power through the wind power transmission structure, and lifting and rotating actions are carried out in sequence, when wind power is small, only the lifting structure can be driven to act, after wind power exceeds a certain degree, the angle adjustment structure is driven to act again, certain angle rotation adjustment is carried out on the display screen, the side face of the display screen faces the wind power, automatic adjustment can be carried out according to the wind power through the device, and the service life of the device is further prolonged.

Claims (10)

1. The utility model provides a self-adjusting scientific and technological management project show rotating device, it includes wind-force transmission structure (1), elevation structure (2), angle adjustment structure (3), chassis structure (4), switching-over case A (5), switching-over case B (6) and switching-over case C (7), angle adjustment structure (3) are rotated and are set up on chassis structure (4), elevation structure (2) slide to be set up on angle adjustment structure (3), wind-force transmission structure (1) left end is connected in elevation structure (2) of left end through switching-over case B (6), switching-over case A (5) left end is connected to wind-force transmission structure (1) right-hand member, switching-over case A (5) right-hand member is connected in elevation structure (2) of right-hand member through switching-over case C (7), its characterized in that: the wind power transmission structure (1) comprises a wind wheel (51), blades (52) and a bevel gear transmission mechanism (53), the wind wheel (51) is of a hollow cylinder structure, the blades (52) are uniformly arranged on the periphery of the wind wheel (51) along the axis direction of the wind wheel (51), the bevel gear transmission mechanism (53) is arranged on the inner side of the wind wheel (51), the rotation of the wind wheel (51) after the wind blows the blades (52) can be simultaneously converted into the rotation input of a right bevel gear C (22) in a reversing box B (6) and the rotation input of a left bevel gear B (16) in the reversing box A (5), the reversing box A (5) further comprises a lower bevel gear B (18), a lower rotating shaft B (19) and a right bevel gear B (17), the lower bevel gear B (19) is fixedly arranged at the lower end of the reversing box A (5), the lower bevel gear B (18) is rotatably arranged at the upper end of the lower rotating shaft B (19), the, The lower bevel gear B (18) and the right bevel gear B (17) are mutually meshed, the right bevel gear B (17) is connected with a left bevel gear C (21) in a reversing box C (7) through a transmission shaft C (20), the reversing box B (6) further comprises a lower bevel gear C (23), the right bevel gear C (22) is meshed with the lower bevel gear C (23), the reversing box C (7) further comprises a lower bevel gear D (54), the left bevel gear C (21) is meshed with the lower bevel gear D (54), the lifting structure (2) comprises a left mounting sleeve (24), a left screw rod (26), a right mounting sleeve (25) and a right screw rod (27), the left mounting sleeve (24) is fixedly connected to the lower end of the reversing box B (6), the right mounting sleeve (25) is fixedly connected to the lower end of the reversing box C (7), the left screw rod (26) is fixedly arranged at the lower end of the lower bevel gear C (23), and the right screw rod (27) is fixedly arranged at the lower end of, the left screw rod (26) and the right screw rod (27) are respectively and rotatably arranged in the left mounting sleeve (24) and the right mounting sleeve (25), the lower end of the left screw rod (26) and the lower end of the right screw rod (27) both penetrate through a square frame (28) of the angle adjusting structure (3), and are respectively meshed with a thread in the left screw rod shaft sleeve (30) and a thread in the right screw rod shaft sleeve (31).
2. The self-adjusting scientific and technical management project display rotating device of claim 1, wherein: chassis structure (4) include chassis (34), support column (35), butt dish (36) and gyro wheel (37), and support column (35) are fixed to be set up on chassis (34), and outside butt dish (36) rotate the cover through gyro wheel (37) and locate support column (35), support column (35) upper end is fixed to be equipped with through the key and is rotated cover (29), rotates cover (29) and rotates and set up in square frame (28).
3. The self-adjusting scientific and technical management project display rotating device of claim 2, wherein: the angle adjusting structure (3) comprises a square frame (28), a left screw rod shaft sleeve (30), a right screw rod shaft sleeve (31), a rotating sleeve (29), a steel wire rope/belt A (32) and a steel wire rope/belt B (33), the rotating sleeve (29), the left screw rod shaft sleeve (30) and the right screw rod shaft sleeve (31) are arranged in the square frame (28) in a rotating mode, the rotating sleeve (29) is located in the middle of the left screw rod shaft sleeve (30) and the right screw rod shaft sleeve (31), the steel wire rope/belt A (32) and the steel wire rope/belt B (33) are wound on the rotating sleeve (29) in the same winding direction, the steel wire rope/belt A (32) stretches out of one side of the rotating sleeve (29) and then winds the outer side of the left screw rod shaft sleeve (30), and the steel wire rope/belt B (33) stretches out of the other side of the rotating sleeve (29) and then winds the outer side of.
4. A self-adjusting scientific and technical management project display rotating device according to claim 3, wherein: the square frame (28) is of a hollow structure, the left lead screw shaft sleeve (30) and the right lead screw shaft sleeve (31) respectively comprise a shaft sleeve main body (44), a shaft sleeve upper edge (45) and a shaft sleeve lower edge (46), the shaft sleeve upper edge (45) is arranged at the upper end of the shaft sleeve main body (44), the shaft sleeve lower edge (46) is arranged at the lower end of the shaft sleeve main body (44), the rotating sleeve (29) comprises a rotating sleeve main body (47), a rotating sleeve upper edge (48), a rotating sleeve middle baffle (49) and a rotating sleeve lower edge (50), the rotating sleeve upper edge (48) is fixedly arranged at the upper end of the rotating sleeve main body (47), the rotating sleeve lower edge (50) is fixedly arranged at the lower end of the rotating sleeve main body (47), the rotating sleeve middle baffle (49) is fixedly arranged at the middle part of the rotating sleeve main body (47), the rotating sleeve (29) is divided into an upper section and a lower section of a winding drum structure, and, the wire rope/belt B (33) is wound in the lower drum structure.
5. The self-adjusting scientific and technical management project display rotating device according to claim 3 or 4, characterized in that: a clamp spring is arranged between the rotating sleeve (29) and the square frame (28), the clamp spring ensures that the steel wire rope/belt A (32) and the steel wire rope/belt B (33) are completely wound on the rotating sleeve (29), and the steel wire rope/belt A (32) and the steel wire rope/belt B (33) can tighten the left screw rod shaft sleeve (30) and the right screw rod shaft sleeve (31).
6. The self-adjusting scientific and technical management project display rotating device of claim 1, wherein: when wind power is large enough, the left screw rod (26) and the right screw rod (27) continue to descend, when the lower end of the screw rod is abutted to the abutting disc (36), the left screw rod and the right screw rod stop descending, if the wind power is large, the left screw rod and the right screw rod are continuously driven to rotate, the left screw rod shaft sleeve (30) and the right screw rod shaft sleeve (31) can be driven to rotate together by rotation of the screw rod, torsion of a torsion spring between the rotating sleeve (39) and the square frame (28) is overcome, a steel wire rope/belt A (32) and a steel wire rope/belt B (33) are respectively wound on the left screw rod shaft sleeve (30) and the right screw rod shaft sleeve (31), the square frame (28) is driven to rotate relative to the supporting column (35), and the angle of the display screen is adjusted according to the wind power.
7. The self-adjusting scientific and technical management project display rotating device of claim 6, which is characterized in that: all set up buffer spring (55) between left side installation cover (24) and square frame (28), right side installation cover (25) and square frame (28) for after not having wind-force, buffer spring (55) drive left side installation cover (24) and right side installation cover (25) rise, and the show screen height restores to the normal position, and simultaneously, torsional spring drive rotates cover (29) and resets, adopts wind sensor to detect whether there is wind-force.
8. The self-adjusting scientific and technical management project display rotating device of claim 1, wherein: the bevel gear transmission mechanism (53) comprises a left bevel gear A (10), a right bevel gear B (19), an upper bevel gear (8), a lower bevel gear A (9), an upper rotating shaft (12) and a lower rotating shaft A (13), wherein the upper rotating shaft (12) is fixedly arranged at the upper end of the inner side of the wind wheel (51), the lower rotating shaft A (13) is fixedly arranged at the lower end of the inner side of the wind wheel (51), the upper bevel gear (8) is rotatably arranged at the lower end of the upper rotating shaft (12), the lower bevel gear A (9) is rotatably arranged at the upper end of the lower rotating shaft A (13), the left bevel gear A (9) is opposite to the right bevel gear B (19), the upper bevel gear (8) is opposite to the lower bevel gear A (9), the left bevel gear A (10), the right bevel gear B (19), the upper bevel gear (8) and the lower bevel gear A (9) are mutually meshed, the left bevel gear A (10), the right bevel gear A (11) is connected with the left bevel gear B (16) through a transmission shaft B (15).
9. The self-adjusting scientific and technical management project display rotating device of claim 1, wherein: a wind direction changing structure (38) is further arranged on the outer side of the wind power transmission structure (1), the wind direction changing structure (38) comprises an outer support (39), slide rails (41), a wind shielding sliding plate (40), an adjusting seat (42) and a telescopic cylinder (43), the outer support (39) is of a box-shaped structure, through openings are formed in the front and back faces of the outer support, the slide rails (41) are arranged on the left side and the right side of each through opening, the wind shielding sliding plate (40) is arranged in the slide rails (41) in a sliding mode, the adjusting seat (42) is arranged on the inner side of the wind shielding sliding plate (40), the telescopic cylinder (43) is fixedly arranged at the bottom end of the outer support (39), the top end of the telescopic cylinder (43) is connected with the adjusting seat (42), the wind shielding sliding plate (40) is driven by the telescopic cylinder (43) to vertically lift and slide in the slide rails, therefore, only half of the blades (52) of the wind wheel (51) can blow wind, and the wind wheel (51) can rotate in the same direction according to different wind directions.
10. The self-adjusting scientific and technical management project display rotating device of claim 4, wherein: the upper edge (45) of the shaft sleeve is clamped on the upper side of the square frame (28), and the lower edge (46) of the shaft sleeve is clamped on the lower side of the square frame (28), so that the shaft sleeve cannot move axially; the upper edge (48) of the rotating sleeve is clamped on the upper side of the direction frame (28), and the lower edge (50) of the rotating sleeve is clamped on the lower side of the square frame (28), so that the rotating sleeve cannot move axially.
CN202010057036.9A 2020-01-16 2020-01-16 Self-adjusting scientific and technological management project display rotating device Active CN111120806B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112746802A (en) * 2020-09-16 2021-05-04 温州职业技术学院 Wind-driven typhoon-proof window

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CN204576995U (en) * 2015-04-09 2015-08-19 晶彩（福建）光电有限公司 A kind of wind light mutual complementing energy-saving LED electric advertisement screen
CN204852828U (en) * 2015-07-25 2015-12-09 深圳市迈锐光电有限公司 A but, revolving frame for installing LED display screen
CN205354545U (en) * 2015-12-10 2016-06-29 天津中星互联科技有限公司 Outdoor advertising device of clean energy power supply
DE102016221254B3 (en) * 2016-10-28 2018-04-05 Audi Ag Adjustment device for a roll-up display

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US6189850B1 (en) * 1997-08-09 2001-02-20 Mitac International Corp. Rotatable LCD screen device
KR101184075B1 (en) * 2011-04-06 2012-09-18 주식회사 아하정보통신 Lcd touch display having screen
CN204576995U (en) * 2015-04-09 2015-08-19 晶彩（福建）光电有限公司 A kind of wind light mutual complementing energy-saving LED electric advertisement screen
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