CN114431606A - Video display platform - Google Patents
Video display platform Download PDFInfo
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- CN114431606A CN114431606A CN202210084090.1A CN202210084090A CN114431606A CN 114431606 A CN114431606 A CN 114431606A CN 202210084090 A CN202210084090 A CN 202210084090A CN 114431606 A CN114431606 A CN 114431606A
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- Prior art keywords
- plate
- block
- protection
- sliding
- blocks
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B19/00—Reading-desks; Lecterns; Pulpits, i.e. free-standing
- A47B19/10—Reading-desks; Lecterns; Pulpits, i.e. free-standing characterised by association with auxiliary devices, e.g. paper clamps, line indicators
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B19/00—Reading-desks; Lecterns; Pulpits, i.e. free-standing
- A47B19/06—Reading-desks; Lecterns; Pulpits, i.e. free-standing with adjustable top leaf
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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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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/22—Glazing, e.g. vaccum glazing
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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Freezers Or Refrigerated Showcases (AREA)
Abstract
The invention relates to a platform, in particular to a video display platform. The invention provides a video display platform which can clamp a sliding plate so that a projector can work more stably. A video presentation platform, comprising: the top of the base is provided with a protection block; the top of the protective block is provided with a protective guard; transparent glass is arranged in the middle of the front side of the guard rail; the upper part of the protective block is provided with a pulling plate in a sliding way; the sliding plate is arranged on the front side of the inner lower part of the protective block in a sliding mode; stay cord, the arm-tie left and right sides all are equipped with the stay cord, and two stay cords all run through the protection piece, and two stay cord front side bottoms are connected with the sliding plate. The first wedge block is clamped through the second wedge block, so that the first wedge block cannot move at will, and meanwhile, the sliding plate cannot move at will, so that the projector can work more stably.
Description
Technical Field
The invention relates to a platform, in particular to a video display platform.
Background
The podium is the necessary teaching aid of teacher's lecture hour, and the podium can generally be placed to the chalk, put textbook, teaching aid, and the podium can help the teacher to open the field of vision simultaneously, the change of the subtle of the student of insight.
The video display platform in the prior art generally comprises a base, a protective block, a protective guard, transparent glass, a pulling plate, a sliding plate, pulling ropes, limiting frames, rotating rods, clamping blocks and a projector, wherein the protective block is arranged at the top of the base, the protective guard is arranged at the top of the protective block, the transparent glass is arranged in the middle of the front side of the protective guard, the pulling plate is arranged at the upper part of the protective block in a sliding manner, the sliding plate is arranged at the front side of the inner lower part of the protective block in a sliding manner, the pulling ropes are arranged at the left side and the right side of the pulling plate and penetrate through the protective block, the bottoms of the front sides of the two pulling ropes are connected with the sliding plate, the limiting frames are arranged at the left side and the right side of the top of the sliding plate through bolts, sliding blocks are arranged at the lower parts in the two limiting frames in a sliding manner, the rotating rods are arranged on the inner side surfaces of the two sliding blocks in a rotating manner, the clamping blocks are connected through bolts, the projector is arranged between the two clamping blocks, teacher's pulling arm-tie drives the stay cord and removes to the rear side, stay cord pulling sliding plate moves to the upside, the sliding plate drives spacing upside and removes, spacing drive slider moves to the upside, the slider drives the bull stick and removes to the upside, the bull stick just drives the clamp splice and removes to the upside, the clamp splice drives the projecting apparatus and moves out to the upside, at this moment people rotate the bull stick and drive the projecting apparatus rotation, adjust the projecting apparatus to suitable angle, then the teacher starts projecting apparatus and begins work, the projecting apparatus projection image sees through clear glass and shows, the teacher alright carry out the video explanation, but this podium can't carry out the chucking to the sliding plate, lead to the sliding plate to remove at will easily, the unable stable work that carries on of projecting apparatus.
In view of the above, the present invention provides a video display platform capable of clamping a sliding plate so that a projector can work more stably.
Disclosure of Invention
In order to overcome the defects that the sliding plate is easy to move randomly and the projector cannot work stably because the sliding plate cannot be clamped by the platform, the invention has the technical problems that: the video display platform can clamp the sliding plate, so that the projector can work more stably.
The invention is technically characterized in that: a video presentation platform, comprising:
the top of the base is provided with a protection block;
the top of the protective block is provided with a protective guard;
transparent glass is arranged in the middle of the front side of the guard railing;
the upper part of the protective block is provided with a pulling plate in a sliding way;
the sliding plate is arranged on the front side of the inner lower part of the protective block in a sliding mode;
the pull ropes are arranged on the left side and the right side of the pull plate respectively, the two pull ropes penetrate through the protective block, and the bottoms of the front sides of the two pull ropes are connected with the sliding plate;
the left side and the right side of the top of the sliding plate are both provided with a limiting frame through bolts;
the sliding blocks are arranged in the two limiting frames in a sliding manner;
the inner side surfaces of the two sliding blocks are respectively and rotatably provided with a rotating rod;
the inner side surfaces of the two rotating rods are respectively and rotatably provided with a clamping block, and the two clamping blocks are connected in a bolt connection mode;
the projector is arranged between the two clamping blocks;
the clamping block is arranged in a sliding mode on the rear side of the upper part in the protective block, and the pulling plate is in contact with the clamping block;
two first return springs are arranged between the clamping block and the protection block;
the clamping mechanism is used for clamping the sliding plate and is arranged in the protective block, and the clamping mechanism is matched with the sliding plate;
the protection mechanism is arranged on the rear side of the protection block and used for protecting teaching articles placed in the protection block and preventing the teaching articles in the protection block from being influenced by external environmental factors.
More preferably, the detent mechanism includes:
the rear side of the bottom of the sliding plate is provided with a first connecting plate;
the left side and the right side of the rear side surface of the first connecting plate are both provided with a first wedge block;
the middle part of the inner part of the protective block is provided with a second connecting plate in a sliding way;
two second return springs are arranged between the second connecting plate and the protective block;
the left side and the right side of the front side surface of the second connecting plate are both provided with second wedge-shaped blocks, and the two first wedge-shaped blocks are in contact with the second wedge-shaped blocks at the same side;
the ejector pad, the second connecting plate top left and right sides all are equipped with the ejector pad.
More preferably, the guard mechanism includes:
the left side and the right side of the rear side of the protection block are both provided with first protection plates in a sliding mode, the two first protection plates are in contact with each other, and the two first protection plates are in sliding connection with the base;
the left side and the right side of the rear side face of the top of the base are respectively provided with a limiting plate, the two limiting plates are both contacted with the protective block, and the two first protective plates are contacted with the limiting plates on the same side;
draw the piece, two first guard plate rear side middle parts all are equipped with and draw the piece, draw two to move the limiting plate contact with the homonymy to the outside, and the limiting plate is used for carrying on spacingly to drawing the piece.
More preferably, the door opening device further comprises a door opening mechanism, wherein the door opening mechanism comprises:
the outer sides of the front side surfaces of the two first protection plates are respectively provided with a connecting block;
the first compression spring is arranged between the two connecting blocks;
the pedal is arranged in the base in a sliding mode at the rear side and is in contact with the two connecting blocks;
two return springs are arranged between the pedal and the base.
More preferably, the noise reduction mechanism further comprises:
the front side inside the protection block is movably provided with a support plate, and the support plate is positioned below the sliding plate;
the noise reduction cotton is arranged in the support plate and is positioned below the sliding plate;
and two second compression springs are arranged between the supporting plate and the protective block.
More preferably, the elevator further comprises an elevating mechanism, and the elevating mechanism comprises:
the left side and the right side of the top of the sliding plate are rotatably provided with screw rods, and the two rotating rods are in threaded fit with the screw rods on the same side;
the lower parts of the two screws are provided with rotating discs;
the connecting rod, the rotary type is equipped with the connecting rod between two rolling disc bottom eccentric position.
More preferably, the device further comprises a placing mechanism, wherein the placing mechanism comprises:
the left side and the right side of the top of the guard rail are symmetrically provided with four supporting seats in the front-back direction;
the inner side surfaces of the four supporting seats are respectively and rotatably provided with a baffle;
the torsional springs are arranged between the four baffles and the supporting seat on the same side;
the inner side surfaces of the four baffles are provided with limiting blocks;
the second protection plate on the left side is connected with the two limit blocks on the left side in a sliding mode; the second protection plate on the right side is connected with the two limiting blocks on the right side in a sliding mode, and the two second protection plates are located inside the protection blocks;
the clamping block is arranged on the rear side of the top of the pulling plate and clamps the two second protection plates.
More preferably, the bottom of the pulling plate is provided with a bayonet matched with the clamping block.
The beneficial effect after adopting above-mentioned technical scheme is: 1. the first wedge-shaped block is clamped through the second wedge-shaped block, so that the first wedge-shaped block cannot move randomly, and meanwhile, the sliding plate cannot move randomly, so that the projector can work more stably;
2. the first protection plate is used for blocking the protection block, so that teaching tools in the protection block are not influenced by the external environment, and the effect of protecting the teaching tools in the protection block can be achieved;
3. the teacher presses the pedal to move downwards, the pedal is separated from the connecting block, then the connecting block drives the first protection plate to move outwards to be opened, and the teacher can take the teaching tools in the protection plate, so that the effect that the first protection plate is opened to facilitate the teacher to take the teaching tools can be achieved;
4. the sliding plate drives the supporting plate to move towards the lower side, the supporting plate drives the noise reduction cotton to move towards the lower side, and the noise reduction cotton can block noise generated by impulsive force of the sliding plate moving towards the lower side.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
Fig. 3 is a first partial cross-sectional view of the present invention.
Fig. 4 is a second partial cross-sectional view of the present invention.
Fig. 5 is an enlarged view of a portion a of the present invention.
Fig. 6 is a schematic perspective view of the locking mechanism of the present invention.
Fig. 7 is a partial cross-sectional view of the detent mechanism of the present invention.
Fig. 8 is a schematic perspective view of the protection mechanism of the present invention.
Fig. 9 is a schematic perspective view of the door opening mechanism of the present invention.
Fig. 10 is a first partial sectional view of the door opening mechanism of the present invention.
Figure 11 is a second partial cross-sectional view of the door opening mechanism of the present invention.
Fig. 12 is a first partial cross-sectional view of the noise reducing mechanism of the present invention.
Fig. 13 is a second partial cross-sectional view of the noise reduction mechanism of the present invention.
Fig. 14 is a schematic perspective view of the lifting mechanism of the present invention.
Fig. 15 is a partial sectional view of the elevating mechanism of the present invention.
Fig. 16 is a schematic perspective view of the placement mechanism of the present invention.
Fig. 17 is an enlarged view of part B of the present invention.
Figure 18 is a partial cross-sectional view of the placement mechanism of the present invention.
The parts are labeled as follows: 1. a base, 2, a protection block, 3, a protective guard, 4, transparent glass, 5, a pulling plate, 6, a sliding plate, 7, a pulling rope, 8, a limiting frame, 9, a rotating rod, 10, a clamping block, 11, a projector, 12, a clamping block, 121, a first return spring, 13, a clamping mechanism, 130, a first connecting plate, 131, a first wedge-shaped block, 132, a second connecting plate, 133, a second wedge-shaped block, 134, a pushing block, 135, a second return spring, 14, a protection mechanism, 140, a first protection plate, 141, a pulling block, 142, a limiting plate, 15, an opening mechanism, 150, a connecting block, 151, a first compression spring, 152, a pedal, 153, a return spring, 16, a noise reduction mechanism, 160, a supporting plate, 161, noise reduction cotton, 162, a second compression spring, 17, a lifting mechanism, 170, a screw, 171, a rotating disc, 172, a connecting rod, 18, a placing mechanism, 180, a supporting seat, 181, a baffle, 182. torsional spring 183, stopper 184, second guard plate, 185, chucking piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A video display platform is shown in figures 1-8 and comprises a base 1, a protective block 2, a protective guard 3, transparent glass 4, a pulling plate 5, a sliding plate 6, pulling ropes 7, a limiting frame 8, a rotating rod 9, a clamping block 10, a projector 11, a clamping block 12, a first reset spring 121, a clamping mechanism 13 and a protective mechanism 14, wherein the protective block 2 is arranged at the top of the base 1, the protective guard 3 is arranged at the top of the protective block 2, the transparent glass 4 is arranged in the middle of the front side of the protective guard 3, the pulling plate 5 is arranged on the upper portion of the protective block 2 in a sliding mode, a handle is arranged in the middle of the rear side of the pulling plate 5 and used for a teacher to pull the handle to drive the pulling plate 5 to move, the sliding plate 6 is arranged in a sliding mode that the front side of the inner lower portion of the protective block 2 is provided with the sliding plate 6 in a sliding mode that the teacher pulls the handle to drive the pulling plate 5 to move, the pulling ropes 7 are arranged on the left side and the right side of the pulling plate 5, the two pulling ropes 7 penetrate through the protective block 2, the bottom of the front sides of the two pulling ropes 7 are connected with the sliding plate 6, the limiting frame 8 through bolts, the two limiting frames 8 are internally provided with sliding blocks in a sliding way, the inner sides of the two sliding blocks are provided with rotating rods 9 in a rotating way, the inner sides of the two rotating rods 9 are provided with clamping blocks 10 in a rotating way, the two clamping blocks 10 are connected in a bolt connection way, a projector 11 is arranged between the two clamping blocks 10, a clamping block 12 is arranged in a sliding way at the back side of the upper part in the protective block 2, the pulling plate 5 is contacted with the clamping block 12, the bottom of the pulling plate 5 is provided with a bayonet matched with the clamping block 12, used for clamping the pulling plate 5, two first return springs 121 are arranged between the clamping block 12 and the protective block 2, a clamping mechanism 13 is arranged inside the protective block 2, the clamping mechanism 13 is matched with the sliding plate 6, for clamping the sliding plate 6 and preventing the sliding plate 6 from moving freely, a protective mechanism 14 is arranged at the rear side of the protective block 2, the protective block is used for protecting teaching articles placed in the protective block 2 and preventing the teaching articles in the protective block 2 from being influenced by external environmental factors.
As shown in fig. 1, 6 and 7, the locking mechanism 13 includes a first connecting plate 130, a first wedge block 131, a second connecting plate 132, a second wedge block 133, a pushing block 134 and a second return spring 135, the first connecting plate 130 is disposed at the rear side of the bottom of the sliding plate 6, the first wedge block 131 is disposed at each of the left and right sides of the rear side of the first connecting plate 130, the second connecting plate 132 is slidably disposed in the middle of the inside of the protection block 2, two second return springs 135 are disposed between the second connecting plate 132 and the protection block 2, the second wedge block 133 is disposed at each of the left and right sides of the front side of the second connecting plate 132, the two first wedge blocks 131 contact with the second wedge block 133 at the same side, and the pushing block 134 is disposed at each of the left and right sides of the top of the second connecting plate 132.
As shown in fig. 1 and 8, the protection mechanism 14 includes first protection plate 140, draw piece 141 and limiting plate 142, the equal slidingtype in the left and right sides of 2 rear sides of protection plate is equipped with first protection plate 140, two first protection plate 140 contacts each other, two first protection plate 140 and base 1 sliding connection, the left and right sides of 1 top trailing flank all is equipped with limiting plate 142, two limiting plates 142 all contact with protection plate 2, two first protection plate 140 contact with the limiting plate 142 of homonymy, two first protection plate 140 rear side middle parts all are equipped with and draw piece 141, two draw the limiting plate 142 contact that piece 141 moved to the outside and homonymy, limiting plate 142 is used for spacing to drawing piece 141.
When a teacher needs to use the video display platform, firstly, the teacher carries the platform to a position to be used, then the teacher pulls the handle to drive the pulling plate 5 to move towards the rear side, the pulling plate 5 pulls the upper end of the pulling rope 7 to move towards the rear side, the lower end of the pulling rope 7 drives the sliding plate 6 to move towards the upper side, the sliding plate 6 drives the first connecting plate 130 to move towards the upper side, the first connecting plate 130 drives the first wedge-shaped block 131 to move towards the upper side, the first wedge-shaped block 131 moves towards the upper side to be contacted with the second wedge-shaped block 133, so as to extrude the second wedge-shaped block 133, the second wedge-shaped block 133 drives the second connecting plate 132 to move towards the rear side, the second connecting plate 132 drives the pushing block 134 to move towards the rear side, the second return spring 135 is compressed, the pulling rope 7 continuously pulls the sliding plate 6 to move towards the upper side, the sliding plate 6 drives the first connecting plate 130 to move towards the upper side, the first connecting plate 130 drives the first wedge-shaped block 131 to move towards the upper side, the first wedge-shaped block 131 is separated from the second wedge-shaped block 133, under the reset action of the second reset spring 135, the second connecting plate 132 drives the pushing block 134 to move forward, and simultaneously the second connecting plate 132 drives the second wedge-shaped block 133 to move forward, the second wedge-shaped block 133 moves forward to abut against the first wedge-shaped block 131, so that the first wedge-shaped block 131 is not easy to move randomly, and simultaneously the sliding plate 6 is not easy to move randomly, the projector 11 can perform the projection work more stably, the sliding plate 6 drives the limiting frame 8 to move upward, the limiting frame 8 drives the sliding block to move upward, the sliding block drives the rotating rod 9 to move upward, the rotating rod 9 drives the clamping block 10 to move upward, the clamping block 10 drives the projector 11 to move upward, at this time, the teacher starts the projector 11 to work, the image projected by the projector 11 is projected through the transparent glass 4, the teacher drives the clamping block 10 to rotate through the rotating rod 9, the clamping block 10 drives the projector 11 to rotate, so that the projector 11 is adjusted to a proper angle, the projector 11 can conveniently project images, a teacher teaches the projected images, meanwhile, the pulling plate 5 moves towards the rear side until the bayonet corresponds to the clamping block 12, the initial state of the first return spring 121 is in a compressed state, under the reset action of the first return spring 121, the clamping block 12 moves upwards to clamp the bayonet on the pulling plate 5, so that the pulling plate 5 is not easy to move randomly, then, the teacher pulls the pulling block 141 to drive the first protection plate 140 to move outwards, the pulling block 141 moves outwards to contact with the limiting plate 142, so that the limiting plate 142 clamps the pulling block 141, the pulling block 141 cannot move, meanwhile, the first protection plate 140 cannot move randomly, then, the teacher places teaching tools in the protection block 2, after the placement work is completed, the teacher pushes the pulling block 141 to drive the first protection plate 140 to move inwards to reset, the first protection plate 140 blocks the protection block 2, the teaching tools in the protection block 2 can be protected by the first protection plate 140 from the external environment, when the teaching work is completed, the teacher closes the projector 11 to stop the projector 11 from working, then the teacher rotates the rotating rod 9 reversely, the rotating rod 9 drives the clamping block 10 to rotate reversely and reset, the clamping block 10 drives the projector 11 to rotate reversely and reset, the teacher pushes the push block 134 to move backwards, the push block 134 drives the second connecting plate 132 to move backwards, the second reset spring 135 is compressed, the second connecting plate 132 drives the second wedge block 133 to move backwards, the second wedge block 133 is separated from contact with the first wedge block 131, the second wedge block 133 cannot abut against the first wedge block 131, then the teacher pulls the fixture block 12 to move downwards, the first reset spring 121 is compressed, the fixture block 12 moves downwards to be separated from contact with the pull plate 5, then the teacher pushes the handle to drive the pulling plate 5 to move and reset to the front side, the pulling plate 5 drives the pulling rope 7 to move to the front side, so that the pulling rope 7 is loosened, under the action of the self gravity of the projector 11, the sliding plate 6 moves to the lower side, the sliding plate 6 drives the first connecting plate 130 to move to the lower side, the first connecting plate 130 drives the first wedge-shaped block 131 to move and reset to the lower side, simultaneously the sliding plate 6 drives the limiting frame 8 to move to the lower side, the limiting frame 8 drives the sliding block to move to the lower side, the sliding block drives the rotating rod 9 to move to the lower side, the rotating rod 9 drives the clamping block 10 to move to the lower side, the clamping block 10 drives the projector 11 to move and reset to the lower side, and then the projector 11 moves and is folded to the lower side, so that the damage to the projector 11 can be effectively prevented, then the teacher does not apply force 134 to the pushing block any more, under the reset action of the second reset spring 135, the second connecting plate 132 drives the pushing block 134 to move and reset to the front side, the second connecting plate 132 drives the second wedge-shaped block 133 to move and reset to the front side, after the projector 11 works for a long time, the internal parts of the projector 11 are easily damaged, at this time, the teacher rotates the bolt on the clamping block 10 to prevent the clamping blocks 10 on the two sides from being clamped, the teacher pulls the right clamping block 10 to drive the right rotating rod 9 to move upwards, the right rotating rod 9 drives the right sliding block to move upwards along the right limiting frame 8, the right clamping block 10 is not in contact with the projector 11 any more, the teacher takes out the projector 11, then places a new projector 11 on the left clamping block 10, the teacher pulls the right sliding block to move downwards along the right limiting frame 8, the right sliding block drives the right rotating rod 9 to move and reset downwards, the right rotating rod 9 drives the right clamping block 10 to move and reset downwards, the clamping blocks 10 on the two sides are in contact, and the teacher installs the bolt back on the clamping block 10, and the teacher antiport bolt for the bolt carries out the chucking to both sides clamp splice 10, clamp splice 10 presss from both sides tightly projecting apparatus 11, finally alright realize removing out work to projecting apparatus 11, the teacher of being convenient for uses projecting apparatus 11, can prevent that projecting apparatus 11 from removing at will simultaneously, make projecting apparatus 11 work that work more firm, can accomodate projecting apparatus 11, prevent that projecting apparatus 11 from causing the purpose of damage.
Example 2
On the basis of embodiment 1, as shown in fig. 2, 9, 10 and 11, the door opening device 15 is further included, the door opening device 15 includes a connecting block 150, a first compression spring 151, a pedal 152 and a return spring 153, the connecting block 150 is disposed on the outer side of the front side of each of the two first protection plates 140, the first compression spring 151 is disposed between the two connecting blocks 150, the pedal 152 is slidably disposed on the rear side inside the base 1, the pedal 152 contacts with the two connecting blocks 150, and the two return springs 153 are disposed between the pedal 152 and the base 1.
Under a normal state, the pedals 152 clamp the two connecting blocks 150, so that the connecting blocks 150 are not easy to move randomly, when a teacher needs to take a teaching article, the teacher presses the pedals 152, the pedals 152 move downwards, the return force springs 153 are compressed, the pedals 152 move downwards to be separated from the connecting blocks 150, the initial state of the first compression springs 151 is in a compressed state, under the reset action of the first compression springs 151, the connecting blocks 150 drive the first protection plates 140 to move outwards, at the moment, the first protection plates 140 are opened, the teacher can take the teaching article in the protection blocks 2, after the teaching article is taken, the teacher pulls the first protection plates 140 to move inwards, the first protection plates 140 block 2 are blocked, meanwhile, the first protection plates 140 drive the connecting blocks 150 to move inwards, the first compression springs 151 are compressed, and after the connecting blocks 150 move inwards to reset, the teacher just no longer exerts force to footboard 152, and under the reset action of return spring 153, footboard 152 moves to the upshift and resets, footboard 152 and both sides connecting block 150 contact to carry out the chucking to connecting block 150, make connecting block 150 unable random movement, first guard plate 140 also can't random movement simultaneously, finally alright realize assisting first guard plate 140 and open, the teaching articles for use of being convenient for the teacher.
As shown in fig. 12 and 13, the noise reduction mechanism 16 is further included, the noise reduction mechanism 16 includes a support plate 160, noise reduction cotton 161 and second compression springs 162, the support plate 160 is movably disposed in the front side of the interior of the protection block 2, the support plate 160 is disposed below the sliding plate 6, the noise reduction cotton 161 is disposed in the support plate 160, the noise reduction cotton 161 is disposed below the sliding plate 6, and two second compression springs 162 are disposed between the support plate 160 and the protection block 2.
And when the sliding plate 6 moves to the upper side, the sliding plate 6 is separated from the contact with the supporting plate 160, the initial state of the second compression spring 162 is in a compressed state, under the reset action of the second compression spring 162, the supporting plate 160 moves to the upper side, the supporting plate 160 drives the noise reduction cotton 161 to move to the upper side, the supporting plate 160 and the noise reduction cotton 161 move to the upper side and contact with the sliding plate 6, when the sliding plate 6 moves to the lower side, the sliding plate 6 presses the supporting plate 160, the supporting plate 160 drives the noise reduction cotton 161 to move to the lower side, and the second compression spring 162 is compressed, so that the noise reduction cotton 161 can block noise generated by impulsive force generated when the sliding plate 6 moves to the lower side, and finally, the noise generated by the downward moving impulsive force of the sliding plate 6 can be reduced, and the service life of the sliding plate 6 is prolonged.
As shown in fig. 1, 14 and 15, the lifting device 17 further comprises a lifting mechanism 17, the lifting mechanism 17 comprises screws 170, rotating discs 171 and connecting rods 172, the screws 170 are rotatably arranged on the left side and the right side of the top of the sliding plate 6, the two rotating rods 9 are in threaded fit with the screws 170 on the same side, the rotating discs 171 are arranged on the lower portions of the two screws 170, and the connecting rods 172 are rotatably arranged between the eccentric positions of the bottoms of the two rotating discs 171.
When the height of the projector 11 needs to be adjusted, a teacher rotates the right screw 170, the right screw 170 drives the right rotary disc 171 to rotate, the right rotary disc 171 drives the connecting rod 172 to rotate in the rotating process, the connecting rod 172 drives the left rotary disc 171 to rotate, the left rotary disc 171 drives the left screw 170 to rotate, the screws 170 on both sides rotate simultaneously, so that the rotary rod 9 moves upwards, the rotary rod 9 drives the clamping block 10 to move upwards, the clamping block 10 drives the projector 11 to move upwards, the rotary rod 9 drives the sliding block to move upwards along the limiting frame 8, after the projector 11 is adjusted to a proper height, the teacher stops rotating the right screw 170, when the projector 11 needs to be adjusted to be in the home position, the teacher reversely rotates the right screw 170, the right screw 170 drives the right rotary disc 171 to be reversed, and the right rotary disc 171 drives the connecting rod 172 to be reversed in the rotating process, connecting rod 172 drives left rolling disc 171 reversal, left rolling disc 171 drives left screw rod 170 reversal, both sides screw rod 170 reversal makes bull stick 9 move to the downside and resets, bull stick 9 drives clamp splice 10 and removes to the downside, clamp splice 10 drives projecting apparatus 11 and removes to the downside, bull stick 9 drives the slider and moves along spacing 8 downside simultaneously and resets, finally alright realization is carried out height-adjusting, convenient to use's purpose to projecting apparatus 11.
As shown in fig. 1, fig. 2, fig. 16, fig. 17 and fig. 18, the device further comprises a placing mechanism 18, the placing mechanism 18 comprises a supporting seat 180, a baffle 181, a torsion spring 182, a limiting block 183, a second protection plate 184 and a clamping block 185, the supporting seats 180 are symmetrically arranged on the left side and the right side of the top of the guard rail 3 in a front-back manner, the number of the supporting seats 180 is four, the baffle 181 is arranged on the inner side of each of the four supporting seats 180 in a rotating manner, the torsion spring 182 is arranged between each of the four baffles 181 and the supporting seat 180 on the same side, the limiting block 183 is arranged on the inner side of each of the four baffles 181, the second protection plate 184 on the left side is connected with the two limiting blocks 183 on the left side in a sliding manner, the two second protection plates 184 on the right side are located inside the protection block 2, the clamping block 185 is arranged on the rear side of the top of the pulling plate 5, and the clamping block 185 clamps the two second protection plates 184.
When a teacher pulls the handle to drive the pulling plate 5 to move towards the rear side, the pulling plate 5 drives the clamping block 185 to move towards the rear side, then the teacher pulls the second protection plate 184 to move upwards along the limiting block 183, then the teacher rotates the second protection plate 184 to open, at this time, the second protection plate 184 is positioned above the supporting seat 180, the second protection plate 184 drives the limiting block 183 to rotate, the limiting block 183 drives the baffle 181 to rotate, the torsion spring 182 deforms, then the teacher pushes the handle to drive the pulling plate 5 to move towards the front side, the pulling plate 5 drives the clamping block 185 to move towards the front side, the clamping block 185 moves towards the front side to be in contact with the second protection plate 184, the clamping block 185 clamps the second protection plate 184, so that the second protection plate 184 cannot rotate at will, then the teacher can take the book above the second protection plate 184, after the teaching is finished, the teacher can take the book up, then pulls the teacher handle to drive the pulling plate 5 to move towards the rear side, the pulling plate 5 drives the clamping block 185 to move towards the rear side, the clamping block 185 is separated from contact with the second protection plate 184, the clamping block 185 cannot clamp the second protection plate 184, under the reset action of the torsion spring 182, the baffle 181 rotates reversely to reset, the baffle 181 drives the limiting block 183 to rotate reversely to reset, the limiting block 183 drives the second protection plate 184 to rotate reversely to reset and retract, then, a teacher pushes the second protection plate 184 to move towards the lower side along the limiting block 183, the second protection plate 184 moves towards the lower side to the inside of the protection block 2, after the second protection plate 184 is retracted, the space can be saved, finally, books for teachers can be placed, and the purpose of saving the space can be realized.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A video display platform, comprising:
the top of the base (1) is provided with a protection block (2);
the top of the protective block (2) is provided with a protective guard (3);
transparent glass (4), wherein the middle part of the front side of the guard rail (3) is provided with the transparent glass (4);
the upper part of the protective block (2) is provided with a pulling plate (5) in a sliding way;
the sliding plate (6) is arranged on the front side of the inner lower part of the protective block (2) in a sliding mode;
the pull ropes (7) are arranged on the left side and the right side of the pull plate (5), the two pull ropes (7) penetrate through the protective block (2), and the bottoms of the front sides of the two pull ropes (7) are connected with the sliding plate (6);
the left side and the right side of the top of the sliding plate (6) are respectively provided with a limiting frame (8) through bolts;
the sliding blocks are arranged inside the two limiting frames (8) in a sliding manner;
the inner side surfaces of the two sliding blocks are respectively and rotatably provided with a rotating rod (9);
the inner side surfaces of the two rotating rods (9) are respectively and rotatably provided with a clamping block (10), and the two clamping blocks (10) are connected in a bolt connection mode;
the projector (11) is arranged between the two clamping blocks (10);
the clamping block (12) is arranged on the rear side of the upper part in the protective block (2) in a sliding mode, and the pulling plate (5) is in contact with the clamping block (12);
two first return springs (121) are arranged between the fixture block (12) and the protection block (2);
the clamping mechanism (13) is arranged in the protective block (2) and used for clamping the sliding plate (6), and the clamping mechanism (13) is matched with the sliding plate (6);
protection machanism (14), protection piece (2) rear side is equipped with protection machanism (14) for the effect of protection is played to the teaching articles for use of placing in protection piece (2), prevents that the teaching articles for use in protection piece (2) from receiving external environmental factor to influence.
2. A video presentation platform as claimed in claim 1, wherein the blocking mechanism (13) comprises:
the first connecting plate (130) is arranged at the rear side of the bottom of the sliding plate (6);
the left side and the right side of the rear side of the first connecting plate (130) are provided with first wedge blocks (131);
the second connecting plate (132) is arranged in the middle of the interior of the protective block (2) in a sliding manner;
two second return springs (135) are arranged between the second connecting plate (132) and the protective block (2);
the left side and the right side of the front side of the second connecting plate (132) are respectively provided with a second wedge block (133), and the two first wedge blocks (131) are in contact with the second wedge blocks (133) on the same side;
the left side and the right side of the top of the second connecting plate (132) are both provided with the push block (134).
3. A video presentation platform as claimed in claim 2, wherein the shielding means (14) comprises:
the left side and the right side of the rear side of the protection block (2) are both provided with first protection plates (140) in a sliding mode, the two first protection plates (140) are in contact, and the two first protection plates (140) are in sliding connection with the base (1);
the left side and the right side of the rear side face of the top of the base (1) are respectively provided with a limiting plate (142), the two limiting plates (142) are respectively contacted with the protective block (2), and the two first protective plates (140) are contacted with the limiting plate (142) at the same side;
draw piece (141), two first guard plates (140) rear side middle parts all are equipped with and draw piece (141), draw piece (141) to move to the outside and contact with limiting plate (142) of homonymy for two, limiting plate (142) are used for carrying on spacingly to drawing piece (141).
4. A video presentation platform as claimed in claim 3, further comprising a door opening mechanism (15), the door opening mechanism (15) comprising:
the outer sides of the front side surfaces of the two first protection plates (140) are respectively provided with a connection block (150);
a first compression spring (151), wherein the first compression spring (151) is arranged between the two connecting blocks (150);
the pedal (152) is arranged in the base (1) in a sliding mode on the rear side, and the pedal (152) is in contact with the two connecting blocks (150);
two return springs (153) are arranged between the pedal (152) and the base (1).
5. A video presentation podium as claimed in claim 4 further comprising noise reduction means (16), the noise reduction means (16) comprising:
the supporting plate (160) is arranged in the protective block (2) in a sliding mode on the front side, and the supporting plate (160) is located below the sliding plate (6);
the noise reduction cotton (161), the noise reduction cotton (161) is arranged in the supporting plate (160), and the noise reduction cotton (161) is positioned below the sliding plate (6);
two second compression springs (162) are arranged between the support plate (160) and the protection block (2).
6. A video presentation platform according to claim 5, further comprising a lifting mechanism (17), the lifting mechanism (17) comprising:
the screw rods (170) are rotatably arranged on the left side and the right side of the top of the sliding plate (6), and the two rotating rods (9) are in threaded fit with the screw rods (170) on the same side;
the lower parts of the two screws (170) are provided with the rotating disc (171);
and the connecting rod (172) is rotatably arranged between the eccentric positions at the bottoms of the two rotating discs (171).
7. A video presentation podium as claimed in claim 6 further comprising a placement mechanism (18), the placement mechanism (18) comprising:
the left side and the right side of the top of the guard rail (3) are symmetrically provided with four supporting seats (180) in front and back, and the number of the supporting seats (180) is four;
the inner side surfaces of the four supporting seats (180) are respectively and rotatably provided with a baffle (181);
torsion springs (182) are arranged between the four baffles (181) and the supporting seat (180) on the same side;
the inner side surfaces of the four baffles (181) are provided with limit blocks (183);
the second protection plate (184), the left second protection plate (184) is connected with the two left limit blocks (183) in a sliding manner; the second protection plate (184) on the right side is connected with the two limiting blocks (183) on the right side in a sliding mode, and the two second protection plates (184) are located inside the protection block (2);
the clamping block (185) is arranged on the rear side of the top of the pulling plate (5), and the two second protection plates (184) are clamped by the clamping block (185).
8. The video display platform according to claim 1, wherein the bottom of the pulling plate (5) is provided with a bayonet which is matched with the clamping block (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210084090.1A CN114431606B (en) | 2022-01-25 | 2022-01-25 | Video display platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210084090.1A CN114431606B (en) | 2022-01-25 | 2022-01-25 | Video display platform |
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| Publication Number | Publication Date |
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| CN114431606A true CN114431606A (en) | 2022-05-06 |
| CN114431606B CN114431606B (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210084090.1A Active CN114431606B (en) | 2022-01-25 | 2022-01-25 | Video display platform |
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Effective date of registration: 20230614 Address after: 276000 West of No. 113 Xinhua 1st Road, Lanshan District, Linyi City, Shandong Province (200 meters south of the intersection with Kaiyang Road) Applicant after: Shandong Chenxu Intelligent Engineering Co.,Ltd. Address before: 310000 room 5125, No. 988, Chenhui Road, Shushan street, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant before: Xiao Chunming |
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