CN115083315A - Anti-toppling teaching display tool convenient to display - Google Patents
Anti-toppling teaching display tool convenient to display Download PDFInfo
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- CN115083315A CN115083315A CN202210726455.6A CN202210726455A CN115083315A CN 115083315 A CN115083315 A CN 115083315A CN 202210726455 A CN202210726455 A CN 202210726455A CN 115083315 A CN115083315 A CN 115083315A
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- 230000007246 mechanism Effects 0.000 claims abstract description 72
- 238000009434 installation Methods 0.000 claims abstract description 37
- 230000003028 elevating effect Effects 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
- G09F15/0068—Modular articulated structures, e.g. stands, and articulation means therefor
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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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
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
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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
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/38—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by folding, e.g. pivoting or scissors tong mechanisms
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards
- G09F7/18—Means for attaching signs, plates, panels, or boards to a supporting structure
- G09F7/20—Means for attaching signs, plates, panels, or boards to a supporting structure for adjustably mounting
- G09F7/205—Means for attaching signs, plates, panels, or boards to a supporting structure for adjustably mounting for adjustably raising or lowering suspended signs
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards
- G09F7/18—Means for attaching signs, plates, panels, or boards to a supporting structure
- G09F7/22—Means for attaching signs, plates, panels, or boards to a supporting structure for rotatably or swingably mounting, e.g. for boards adapted to be rotated by the wind
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses an anti-toppling teaching display tool convenient to display, which comprises a bottom plate, a top plate, an installation frame and two groups of scissor type lifting mechanisms, wherein the installation frame is arranged on the top plate, the two groups of scissor type lifting mechanisms are arranged at intervals along the width direction of the bottom plate, two ends of each scissor type lifting mechanism are respectively connected with the bottom plate and the top plate, sliding ends at the tops of the two groups of scissor type lifting mechanisms are connected through a first connecting rod, two sides of the top plate along the width direction of the top plate are respectively hinged with a telescopic supporting rod, the telescopic supporting rods are close to or far away from the top plate to deflect, a double-end telescopic mechanism is arranged at the bottom of the top plate and comprises a first opening rod and a second opening rod, the moving directions of the first opening rod and the second opening rod are opposite to each other, and the first opening rod and the second opening rod respectively abut against the two telescopic supporting rods. The extension angle of the lifting height automatic adjustment telescopic supporting rod through the installation frame meets the requirement that the height of the installation frame is higher, the extension angle of the telescopic supporting rod is larger, and the support stability and the wind resistance of the display appliance are improved.
Description
Technical Field
The invention relates to the technical field of anti-toppling of display boards, in particular to an anti-toppling teaching display tool convenient to display.
Background
The display appliance is used for displaying and spreading information, is widely applied to outdoor environments such as markets, squares, campuses and the like, plays information contents by installing a display screen on the display appliance, or posts are posted on the display tools to transmit contents in the form of characters, while the display tools used in the campus are mostly used for reading out of class, or other teaching propaganda materials, therefore, the board is basically placed in the outdoor environment, however, the structure of the prior propaganda board for the campus is very simple, although the height adjusting mechanism is provided for adjusting the display height, no other supporting structure is provided except for the bottom plate support, however, the center of gravity of the publicity display board is increased after the height of the publicity display board is increased, which results in poor stability, the influence that receives the wind-blowing in outdoor environment is great, also can cause the anti-wind ability to weaken after the propaganda panel risees to the condition of damage is emptyd to the propaganda panel that uses in the open air takes place easily.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an anti-toppling teaching display tool convenient to display.
The purpose of the invention is realized by the following technical scheme: an anti-toppling teaching display tool convenient to display comprises a bottom plate, a top plate, two groups of mounting frames and two groups of scissor type lifting mechanisms, wherein the mounting frames are arranged on the top plate, the scissor type lifting mechanisms are arranged between the bottom plate and the top plate, the two groups of scissor type lifting mechanisms are arranged at intervals along the width direction of the bottom plate, one end of the top of each scissor type lifting mechanism is hinged with the top plate, the other end of the top of each scissor type lifting mechanism is in sliding connection with the top plate, one end of the bottom of each scissor type lifting mechanism is hinged with the bottom plate, the other end of the bottom of each scissor type lifting mechanism is in sliding connection with the bottom plate, the sliding ends of the tops of the two groups of scissor type lifting mechanisms are connected through a first connecting rod, telescopic supporting rods are hinged to two sides of the top plate along the width direction of the top plate, and the telescopic supporting rods are close to or far away from the top plate to deflect, the bottom of the top plate is provided with a double-end telescopic mechanism;
the double-end telescopic mechanism comprises a thread seat and a two-way thread lead screw, the thread seat is positioned between two telescopic supporting rods and is fixedly connected with the top plate, the two-way thread lead screw penetrates through the thread seat and is rotatably connected with the thread seat, two thread sections in the thread turning direction are arranged on the two-way thread lead screw, the two thread sections are respectively positioned at two ends of the thread seat, the two thread sections are respectively in threaded connection with a first opening rod and a second opening rod, the second opening rod and the first opening rod are both in sliding connection with the top plate, the first opening rod and the second opening rod are respectively abutted against the two telescopic supporting rods, a straight rack is fixedly connected with the first connecting rod, a cylindrical straight gear is arranged on the two-way thread lead screw, the cylindrical gear is meshed with the straight rack, when the scissor type lifting mechanism is extended, the first opening rod and the second opening rod are both close to the telescopic supporting rod which is abutted against the first opening rod and the second opening rod to move so that the telescopic supporting rod can be unfolded.
The effect of adopting the technical scheme is that the top plate is driven to ascend and descend by the extension of the scissor type lifting mechanism so as to change the display height of the installation frame, when the scissor type lifting mechanism extends or contracts, the sliding end of the scissor type lifting mechanism slides, the sliding end at the top of the scissor type lifting mechanism is connected through the first connecting rod, so that the scissor type lifting mechanism drives the straight rack to move through the first connecting rod when extending, the movement of the straight rack drives the cylindrical straight gear to rotate, the cylindrical straight gear drives the two-way threaded screw rod to rotate, the rotational freedom degree of the first opening rod and the rotational freedom degree of the second opening rod are limited by the top plate, thereby the first opening rod and the second opening rod move along the axial direction of the two-way threaded screw rod, and as the first opening rod and the second opening rod are respectively in threaded connection on two opposite thread sections of the two-way threaded screw rod, thereby make first opening rod and second opening rod's removal opposite direction, and then drive two flexible bracing pieces through first opening rod and second opening rod respectively and extend, wherein, it is higher to satisfy the installation frame height between flexible bracing piece and the scissors fork elevating system, the extension angle of flexible bracing piece is big more, make and produce the linkage between the extension of scissors fork elevating system and the extension of flexible bracing piece, when the show height of adjusting the installation frame, flexible bracing piece is automatic to be followed and is deflected to suitable position and support, do not need the manual work to rely on the experience to go according to the height of installation frame and transfer the deflection angle of flexible bracing piece, thereby improve the support stability of show apparatus, the anti-wind ability has also been improved, be applicable to outdoor environment and use, the use and the operation that make teaching show apparatus simultaneously become simply and swift.
Further, flexible bracing piece includes hinge bar and slide bar, the one end of hinge bar with the roof is articulated, and other end slip cover is equipped with the slide bar, the slide bar is kept away from the one end of hinge bar is fixed with the rubber pad, one side threaded connection at slide bar top has locking screw, locking screw with the hinge bar offsets, after the angle modulation of flexible bracing piece, through the removal of slide bar on the hinge bar, makes rubber pad and ground contact, makes the flexible bracing piece can be smooth support the show apparatus.
Further, the lateral wall of hinge rod has seted up the spout along self length direction, the cross sectional shape of spout is "T" font, the one end that screw thread seat was kept away from to first opening rod and the one end that screw thread seat was kept away from to the second opening rod all articulate there is the gyro wheel, the gyro wheel activity sets up in the spout.
Furthermore, the two sets of sliding ends at the bottom of the scissor type lifting mechanism are connected through a second connecting rod, the middle of the second connecting rod is connected with a driving mechanism, the driving mechanism comprises a screw rod and mounting seats, the two sets of mounting seats are fixed on the bottom plate along the length direction of the bottom plate at intervals, the screw rod is arranged between the two sets of mounting seats, the screw rod is rotatably connected with the mounting seats, and the second connecting rod is in threaded connection with the screw rod.
Furthermore, one end of the screw rod penetrates through the mounting seat and is fixedly provided with a rotating rod, and the rotating rod is Z-shaped.
Further, the installation frame includes rectangle strip and side direction strip, the one end of rectangle strip pass through the articulated shaft with the roof rotates to be connected, the vertical setting of articulated shaft, the other end of rectangle strip with roof sliding connection, the both ends of rectangle strip all are fixed with side direction strip, the vertical upwards extension of side direction strip, two the rectangular channel has all been seted up to the relative one side of side direction strip, the rectangular channel runs through the upper and lower both ends of side direction strip, the holding tank has been seted up at the top of rectangle strip, the both ends of holding tank respectively with two the rectangular channel of side direction strip communicates with each other.
Furthermore, a connecting shaft is vertically fixed at one end, away from the hinged shaft, of the rectangular strip, a rotating wheel is rotatably connected to the bottom of the connecting shaft, an arc-shaped groove is formed in the top plate, the arc-shaped groove and the hinged shaft are concentrically arranged, the rotating wheel is matched with the inside of the arc-shaped groove, a buffer spring is arranged in the arc-shaped groove, and the buffer spring is connected with the connecting shaft.
Furthermore, a plurality of fastening mechanisms are arranged on the lateral strips along the height direction of the lateral strips, each fastening mechanism comprises a fastening plate and a fastening bolt, the fastening plates are located in the rectangular grooves, the fastening bolts are in threaded connection with the lateral strips, and one ends of the fastening bolts extend into the rectangular grooves and are connected with the fastening plates.
The invention has the beneficial effects that:
1. the top plate is driven to ascend and descend by the extension of the scissor type lifting mechanism so as to change the display height of the installation frame, when the scissor type lifting mechanism extends or contracts, the sliding end of the scissor type lifting mechanism slides, the sliding end at the top of the scissor type lifting mechanism is connected through the first connecting rod, so that the straight rack is driven to move by the first connecting rod when the scissor type lifting mechanism extends, the straight rack moves to drive the cylindrical straight gear to rotate, the cylindrical straight gear drives the two-way threaded screw rod to rotate, the rotational freedom degree of the first opening rod and the rotational freedom degree of the second opening rod are limited by the top plate, so that the first opening rod and the second opening rod move along the axial direction of the two-way threaded screw rod, and the first opening rod and the second opening rod are respectively in threaded connection on two opposite thread sections of the two-way threaded screw rod, so that the moving directions of the first opening rod and the second opening rod are opposite, and then drive two flexible bracing pieces respectively through first opening rod and second opening rod and extend, wherein, it is higher more with scissors fork elevating system to satisfy the installation frame height between flexible bracing piece and the scissors fork elevating system, the extension angle of flexible bracing piece is big more, make and cut and produce the linkage between fork elevating system's the extension and the extension of flexible bracing piece, when the show height of adjusting the installation frame, flexible bracing piece is automatic to be followed and is deflected to suitable position and support, do not need the manual work to rely on the experience to go the deflection angle of transferring flexible bracing piece according to the height of installation frame, thereby improve the support stability of show tools, the wind-resistant ability has also been improved, be applicable to outdoor environment and use, the use and the operation that make teaching show tools simultaneously become simple and swift.
2. The one end and the roof of installation frame rotate to be connected, the other end and roof sliding connection, when outdoor wind-force was too big, will drive installation frame compression buffer spring and deflect round the pin joint with the roof under the effect of wind power to make the installation frame rotate along with the wind, with the area of contact who reduces installation frame and wind, and then reduce the influence of wind to the display apparatus, further improved anti-wind ability, guarantee that the display apparatus can not take place to empty even under the condition of strong wind yet.
Drawings
FIG. 1 is a perspective view of an anti-toppling teaching demonstration aid convenient for demonstration according to the present invention;
FIG. 2 is a schematic structural view of an anti-toppling teaching demonstration apparatus for easy demonstration according to the present invention;
FIG. 3 is a top view of an anti-toppling teaching demonstration aid convenient for demonstration according to the present invention;
FIG. 4 is a front view of an anti-toppling teaching demonstration aid convenient for demonstration according to the present invention;
FIG. 5 is a schematic view of the connection between the mounting frame and the top plate of the anti-toppling teaching demonstration apparatus for easy demonstration according to the present invention;
FIG. 6 is an enlarged view taken at A in FIG. 5;
in the figure, 1-bottom plate, 2-top plate, 3-mounting frame, 4-scissor lifting mechanism, 5-first connecting rod, 6-telescopic supporting rod, 7-thread seat, 8-two-way thread screw rod, 9-first opening rod, 10-second opening rod, 11-spur rack, 12-cylindrical spur gear, 13-hinge rod, 14-slide rod, 15-rubber pad, 16-locking screw rod, 17-sliding groove, 18-roller, 19-second connecting rod, 20-screw rod, 21-mounting seat, 22-rotating rod, 31-rectangular strip, 32-lateral strip, 33-rotating wheel, 34-arc groove, 35-buffer spring, 36-rectangular groove, 37-accommodating groove, 38-connecting shaft, 39-fastening plate, 40-fastening bolt.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1 to 6, an anti-toppling teaching and display tool convenient for display comprises a bottom plate 1, a top plate 2, an installation frame 3 and two sets of scissor type lifting mechanisms 4, wherein the installation frame 3 is arranged on the top plate 2, the scissor type lifting mechanisms 4 are arranged between the bottom plate 1 and the top plate 2, the two sets of scissor type lifting mechanisms 4 are arranged at intervals along the width direction of the bottom plate 1, one end of the top of the scissor type lifting mechanism 4 is hinged with the top plate 2, the other end of the top is in sliding connection with the top plate 2, one end of the bottom of the scissor type lifting mechanism is hinged with the bottom plate 1, the other end of the bottom is in sliding connection with the bottom plate 1, in specific implementation, the sliding end of the top of the scissor type lifting mechanism 4 and the sliding end of the bottom are both connected with sliding blocks, wherein the sliding block of the top sliding end is in sliding connection with the top plate 2, the sliding block of the bottom sliding end is in sliding connection with the bottom plate 1, meanwhile, the sliding block at the sliding end at the top and the sliding block at the sliding end at the bottom are not in a T shape, T-shaped sliding grooves matched with the sliding blocks are formed in the top plate 2 and the bottom plate 1, so that the bottom plate 1 and the top plate 2 cannot be separated from the scissor-type lifting mechanisms 4, the connection strength is improved, the sliding ends at the tops of the two sets of scissor-type lifting mechanisms 4 are connected through a first connecting rod 5, telescopic support rods 6 are hinged to the two sides of the top plate 2 in the width direction, the telescopic support rods 6 are close to or far away from the top plate 2 to deflect, and a double-end telescopic mechanism is arranged at the bottom of the top plate 2; the double-end telescopic mechanism comprises a thread seat 7 and a bidirectional thread screw 8, the thread seat 7 is positioned between two telescopic support rods 6 and is fixedly connected with the top plate 2, the bidirectional thread screw 8 penetrates through the thread seat 7 and is rotatably connected with the thread seat 7, two thread sections in the thread turning direction are arranged on the bidirectional thread screw 8 and are respectively positioned at two ends of the thread seat 7, a first opening rod 9 and a second opening rod 10 are respectively in threaded connection with the two thread sections, the second opening rod 10 and the first opening rod 9 are both in sliding connection with the top plate 2, the first opening rod 8 and the second opening rod 10 are respectively abutted against the two telescopic support rods 6, a straight rack 11 is fixedly connected with the first connecting rod 5, a cylindrical straight gear 12 is mounted on the bidirectional thread screw 8, the straight rack 12 is engaged with the straight rack 11, and when the scissor type lifting mechanism is extended, the first opening rod 9 and the second opening rod 10 are both close to the telescopic support rods 6 abutted against the same to enable the telescopic support rods 6 to be extended; the top plate 2 is driven to ascend and descend by the extension of the scissor type lifting mechanism 4 so as to change the display height of the installation frame 3, when the scissor type lifting mechanism 4 extends or contracts, the sliding end of the scissor type lifting mechanism 4 slides, the sliding end at the top of the scissor type lifting mechanism 4 is connected through the first connecting rod 5, so that the scissor type lifting mechanism 4 drives the straight rack 11 to move through the first connecting rod 5 when extending, the movement of the straight rack 11 drives the cylindrical straight gear 12 to rotate, the cylindrical straight gear 12 drives the two-way threaded screw rod 8 to rotate, the rotational freedom degree of the first opening rod 9 and the rotational freedom degree of the second opening rod 10 are limited by the top plate 2, so that the first opening rod 9 and the second opening rod 10 move along the axial direction of the two-way threaded screw rod 8, because the first opening rod 9 and the second opening rod 10 are respectively in threaded connection with two opposite thread sections of the two-way threaded screw rod 8, thereby enabling the moving directions of the first opening rod 9 and the second opening rod 10 to be opposite, further driving the two telescopic support rods 6 to extend through the first opening rod 9 and the second opening rod 10 respectively, wherein, the higher the height of the installation frame 3 is, the larger the extension angle of the telescopic support rod 6 is, the linkage is generated between the extension of the scissor type lifting mechanism 4 and the extension of the telescopic support rod 6, when the display height of the installation frame 3 is adjusted, the telescopic support rod 6 automatically deflects to a proper position for supporting without manually adjusting the deflection angle of the telescopic support rod 6 according to the height of the installation frame 3 by experience, thereby improve the support stability of show apparatus, also improved anti-wind ability, be applicable to the outdoor environment and use, make the use and the operation of teaching show apparatus become simple and swift simultaneously.
Further, as shown in fig. 1 and 2, the telescopic support rod 6 includes a hinge rod 13 and a slide rod 14, one end of the hinge rod 13 is hinged to the top plate 2, the other end of the hinge rod 13 is slidably sleeved with the slide rod 14, a rubber pad 15 is fixed at one end of the slide rod 14 away from the hinge rod 13, a locking screw 16 is connected to one side of the top of the slide rod 14 in a threaded manner, the locking screw 16 abuts against the hinge rod 13, after the angle of the telescopic support rod 6 is adjusted, the rubber pad 15 is in contact with the ground by the movement of the slide rod 14 on the hinge rod 13, so that the telescopic support rod 6 can smoothly support the display appliance, the rubber pad 15 can improve the friction force with the ground, and the stable support of the display appliance is ensured; as shown in fig. 3, the side wall of the hinged rod 13 is provided with a sliding groove 17 along the length direction thereof, the cross-sectional shape of the sliding groove is "T" shaped, the end of the first opening rod 8 away from the screw seat 7 and the end of the second opening rod 10 away from the screw seat 7 are both hinged with a roller 18, the roller 18 is movably disposed in the sliding groove 17, in the specific implementation, when the display height of the mounting frame 3 is adjusted, the locking screw 16 is firstly screwed to enable the sliding rod 14 to freely slide on the hinged rod 13, when the mounting frame 3 is lifted, the telescopic support rod 6 deflects away from the top plate 2, the rubber pad 15 is lifted, under the action of the self gravity of the sliding rod 14, the sliding rod 14 is moved downwards to ensure that the rubber pad 15 contacts with the ground to support the display appliance, thereby the telescopic support rod 6 is automatically extended, and when the height adjustment of the mounting frame is completed, the locking screw 16 is screwed again, when the height of the installation frame 3 is reduced, the telescopic support rod 6 deflects close to the top plate 2, the telescopic support rod 6 drives the rubber pad 15 to abut against the ground in the deflection process, the rubber pad 15 is spherical, so that abutting force can be separated, the sliding rod 14 slides downwards on the hinge rod 13 under the pulling action of the first opening rod 9 and the second opening rod 10, so that the length of the telescopic support rod 6 is automatically shortened, and finally the locking screw 16 is screwed, so that when the display height of the display tool is adjusted, the deflection angle of the telescopic support rod 6 and the telescopic length of the telescopic support rod 6 are automatically adjusted along with the change of the display height without manual adjustment, and the operation is simple and rapid.
Further, as shown in fig. 2, the sliding ends of the bottoms of the two scissor-type lifting mechanisms 4 are connected through a second connecting rod 19, the middle part of the second connecting rod 19 is connected with a driving mechanism, the driving mechanism comprises a screw rod 20 and mounting seats 21, two sets of mounting seats 21 are fixed on the bottom plate 1 at intervals along the length direction of the bottom plate, the screw rod 20 is arranged between the two sets of mounting seats 21, the screw rod 20 is rotatably connected with the mounting seats 21, the second connecting rod 19 is in threaded connection with the screw rod 20, one end of the screw rod 20 penetrates through the mounting seats 21 and is fixed with a rotating rod 22, the rotating rod 22 is in a 'Z' shape, the screw rod 20 is driven to rotate through the rotation of the rotating rod 22, since the rotational degree of freedom of the second link 19 is restricted, the second link 19 is moved along the axial direction of the screw 20, thereby, the second connecting rod 19 drives the two scissor type lifting mechanisms to extend and retract, and the two scissor type lifting mechanisms move synchronously.
Further, as shown in fig. 2, 5 and 6, the mounting frame 3 includes a rectangular strip 31 and a lateral strip 32, one end of the rectangular strip 31 is rotatably connected to the top plate 2 through a hinge shaft, the hinge shaft is vertically disposed, the other end of the rectangular strip 31 is slidably connected to the top plate 2, the lateral strip 32 is fixed to both ends of the rectangular strip 31, the lateral strip 32 extends vertically upward, a rectangular groove 36 is formed in one side of the two lateral strips 32 opposite to each other, the rectangular groove 36 penetrates through the upper and lower ends of the lateral strip 32, an accommodating groove 37 is formed in the top of the rectangular strip 31, both ends of the accommodating groove 37 are respectively communicated with the rectangular grooves 36 of the two lateral strips 31, a connecting shaft 38 is vertically fixed to one end of the rectangular strip 31 far from the hinge shaft, the bottom of the connecting shaft 38 is rotatably connected with a rotating wheel 33, an arc-shaped groove 34 is formed in the top plate 2, the arc-shaped groove 34 is concentrically disposed with the hinge shaft, the rotating wheel 33 is adapted to the arc-shaped groove 34, the buffer springs 35 are arranged in the arc-shaped grooves 34, the buffer springs 35 are connected with the connecting shaft 38, one end of the installation frame 3 is rotatably connected with the top plate 2, the other end of the installation frame 3 is slidably connected with the top plate 2, when outdoor wind power is too large, the installation frame 3 is driven to compress the buffer springs 35 to deflect around a hinge point with the top plate 2 under the action of the wind power, so that the installation frame 3 rotates along the wind, the contact area of the installation frame 3 and the wind is reduced, the influence of the wind on the display tool is further reduced, the wind resistance is further improved, and the display tool is ensured not to topple over even under the condition of strong wind; a plurality of fastening mechanisms are arranged on the lateral strips 32 along the height direction of the lateral strips, each fastening mechanism comprises a fastening plate 39 and a fastening bolt 40, each fastening plate 39 is located in the corresponding rectangular groove 36, each fastening bolt 40 is in threaded connection with the lateral strips 32, one end of each fastening bolt 40 extends into the corresponding rectangular groove 36 and is connected with the corresponding fastening plate 39, in use, when a display screen is installed on the installation frame 3 for display, the display screen slides into the corresponding rectangular groove 36 from the top of the installation frame 3 and is located at the bottom of the corresponding display screen in the accommodating groove 37, then the fastening bolts 40 are rotated to drive the fastening plates 39 to abut against the shell of the display screen through the fastening bolts 40, so that the display screen is installed, whether a ceiling is installed or not can be selected according to the placement position of a display tool, when the display tool is in an open air environment, a rainproof ceiling is installed on the top of the installation frame 3 through the bolt connection, and when newspaper is required to be posted on the installation frame 3 for teaching of foreign reading materials, Propaganda and the like, wherein a glass plate is arranged on the installation frame 3, the installation mode of the glass plate is consistent with that of the display screen, and newspaper is pasted on the glass plate through adhesive tape or glue.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "two ends", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention; and those skilled in the art will appreciate that the benefits to be achieved by the present invention are only better than those achieved by current embodiments of the prior art under certain circumstances, rather than the best use directly in the industry.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The anti-toppling teaching display tool convenient for display is characterized by comprising a bottom plate (1), a top plate (2), an installation frame (3) and two scissor type lifting mechanisms (4), wherein the installation frame (3) is arranged on the top plate (2), the scissor type lifting mechanisms (4) are arranged between the bottom plate (1) and the top plate (2), the two scissor type lifting mechanisms (4) are arranged in two groups, the two scissor type lifting mechanisms (4) are arranged at intervals along the width direction of the bottom plate (1), one end of the top of each scissor type lifting mechanism (4) is hinged to the top plate (2), the other end of the top is connected with the top plate (2) in a sliding manner, one end of the bottom of each scissor type lifting mechanism is hinged to the bottom plate (1), the other end of the bottom of each scissor type lifting mechanism is connected with the bottom plate (1) in a sliding manner, the sliding ends of the tops of the two scissor type lifting mechanisms (4) are connected through a first connecting rod (5), two sides of the top plate (2) in the width direction are hinged with telescopic supporting rods (6), the telescopic supporting rods (6) are close to or far away from the top plate (2) to deflect, and a double-end telescopic mechanism is arranged at the bottom of the top plate (2);
the double-end telescopic mechanism comprises a thread seat (7) and a two-way thread lead screw (8), wherein the thread seat (7) is positioned between the telescopic supporting rods (6) and is connected with the top plate (2) in a fixed manner, the two-way thread lead screw (8) penetrates through the thread seat (7) and is connected with the thread seat (7) in a rotating manner, two thread sections in the direction of the two-way thread lead screw (8) are arranged at two ends of the thread seat (7) respectively, the two thread sections are respectively connected with a first opening rod (9) and a second opening rod (10) in a threaded manner, the second opening rod (10) and the first opening rod (9) are both connected with the top plate (2) in a sliding manner, the first opening rod (8) and the second opening rod (10) are respectively abutted against the telescopic supporting rods (6), and the first connecting rod (5) is fixedly connected with a straight rack (11), install cylinder spur gear (12) on two-way screw lead screw (8), cylinder spur gear (12) with spur rack (11) meshing, work as when cutting fork elevating system and stretching out, first pole (9) and the second pole (10) of opening are all close to flexible bracing piece (6) that offsets with it and are removed so that flexible bracing piece (6) expand.
2. The anti-toppling teaching display tool convenient to display as claimed in claim 1, wherein the telescopic supporting rod (6) comprises an articulated rod (13) and a sliding rod (14), one end of the articulated rod (13) is articulated with the top plate (2), the other end of the articulated rod (13) is slidably sleeved with the sliding rod (14), one end of the sliding rod (14) far away from the articulated rod (13) is fixed with a rubber pad (15), one side of the top of the sliding rod (14) is in threaded connection with a locking screw rod (16), and the locking screw rod (16) is abutted against the articulated rod (13).
3. The anti-toppling teaching display tool convenient to display as claimed in claim 2, wherein a sliding groove (17) is formed in the side wall of the hinged rod (13) along the length direction of the hinged rod, the cross section of the sliding groove is in a T shape, a roller (18) is hinged to one end, away from the threaded seat (7), of the first opening rod (8) and one end, away from the threaded seat (7), of the second opening rod (10), and the roller (18) is movably arranged in the sliding groove (17).
4. The anti-toppling teaching display tool convenient to display as claimed in claim 1, wherein the two sets of scissor type lifting mechanisms (4) are connected at the bottom sliding ends through a second connecting rod (19), a driving mechanism is connected at the middle part of the second connecting rod (19), the driving mechanism comprises a screw rod (20) and a mounting seat (21), the two sets of mounting seats (21) are fixed on the bottom plate (1) at intervals along the length direction of the bottom plate, the screw rod (20) is arranged between the two sets of mounting seats (21), the screw rod (20) is rotatably connected with the mounting seat (21), and the second connecting rod (19) is in threaded connection with the screw rod (20).
5. The anti-toppling teaching display tool convenient to display as claimed in claim 4, wherein a rotating rod (22) is fixed to one end of the screw rod (20) through the mounting seat (21), and the rotating rod (22) is Z-shaped.
6. The anti-toppling teaching demonstration aid convenient to display according to claim 1, the mounting frame (3) comprises a rectangular strip (31) and a lateral strip (32), one end of the rectangular strip (31) is rotationally connected with the top plate (2) through a hinge shaft, the articulated shaft is vertically arranged, the other end of the rectangular strip (31) is connected with the top plate (2) in a sliding way, lateral strips (32) are fixed at two ends of the rectangular strip (31), the lateral strips (32) vertically extend upwards, rectangular grooves (36) are formed in one opposite sides of the two lateral strips (32), the rectangular groove (36) penetrates through the upper end and the lower end of the lateral strip (32), the top of the rectangular strip (31) is provided with an accommodating groove (37), the two ends of the accommodating groove (37) are respectively communicated with the rectangular grooves (36) of the two lateral strips (31).
7. The anti-toppling teaching display tool convenient to display as claimed in claim 6, wherein a connecting shaft (38) is vertically fixed to one end, away from the hinged shaft, of the rectangular strip (31), a rotating wheel (33) is rotatably connected to the bottom of the connecting shaft (38), an arc-shaped groove (34) is formed in the top plate (2), the arc-shaped groove (34) and the hinged shaft are concentrically arranged, the rotating wheel (33) is matched in the arc-shaped groove (34), a buffer spring (35) is arranged in the arc-shaped groove (34), and the buffer spring (35) is connected with the connecting shaft (38).
8. An anti-toppling type teaching display tool convenient to display as claimed in claim 7, wherein a plurality of fastening mechanisms are provided on the lateral bar (32) along the height direction thereof, the fastening mechanisms comprise fastening plates (39) and fastening bolts (40), the fastening plates (39) are located in the rectangular grooves (36), the fastening bolts (40) are in threaded connection with the lateral bar (32), and one ends of the fastening bolts (40) extend into the rectangular grooves (36) and are connected with the fastening plates (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210726455.6A CN115083315A (en) | 2022-06-23 | 2022-06-23 | Anti-toppling teaching display tool convenient to display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210726455.6A CN115083315A (en) | 2022-06-23 | 2022-06-23 | Anti-toppling teaching display tool convenient to display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115083315A true CN115083315A (en) | 2022-09-20 |
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ID=83256747
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210726455.6A Pending CN115083315A (en) | 2022-06-23 | 2022-06-23 | Anti-toppling teaching display tool convenient to display |
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| Country | Link |
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| CN (1) | CN115083315A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130148A (en) * | 2013-03-12 | 2013-06-05 | 常州汉肯科技有限公司 | Lifting pillar support |
| CN109256013A (en) * | 2018-11-07 | 2019-01-22 | 商洛学院 | A kind of environment art design teaching displaying device |
| CN209843207U (en) * | 2019-06-20 | 2019-12-24 | 刘兵 | Electronic information display device |
| CN215577205U (en) * | 2021-09-26 | 2022-01-18 | 山西应用科技学院 | Display device for computer technology teaching samples |
| CN114074902A (en) * | 2021-11-11 | 2022-02-22 | 上海电机学院 | Track translation formula construction elevating platform |
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2022
- 2022-06-23 CN CN202210726455.6A patent/CN115083315A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130148A (en) * | 2013-03-12 | 2013-06-05 | 常州汉肯科技有限公司 | Lifting pillar support |
| CN109256013A (en) * | 2018-11-07 | 2019-01-22 | 商洛学院 | A kind of environment art design teaching displaying device |
| CN209843207U (en) * | 2019-06-20 | 2019-12-24 | 刘兵 | Electronic information display device |
| CN215577205U (en) * | 2021-09-26 | 2022-01-18 | 山西应用科技学院 | Display device for computer technology teaching samples |
| CN114074902A (en) * | 2021-11-11 | 2022-02-22 | 上海电机学院 | Track translation formula construction elevating platform |
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