CN114431606B - Video display platform - Google Patents
Video display platform Download PDFInfo
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- CN114431606B CN114431606B CN202210084090.1A CN202210084090A CN114431606B CN 114431606 B CN114431606 B CN 114431606B CN 202210084090 A CN202210084090 A CN 202210084090A CN 114431606 B CN114431606 B CN 114431606B
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- Prior art keywords
- block
- plate
- protection
- blocks
- sliding
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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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- 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 podium, in particular to a video display podium. The invention provides a video display platform which can clamp a sliding plate and enable a projector to work more firmly. A video presentation podium comprising: the protection block is arranged at the top of the base; the top of the protective block is provided with a protective rail; transparent glass is arranged in the middle of the front side of the protective fence; the upper part of the protection block is provided with a pull plate in a sliding manner; the sliding plate is arranged on the front side of the lower part in the protection block in a sliding manner; stay cords, stay cord both 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. Carry out the chucking to first wedge through the second wedge to first wedge can't remove at will, and the sliding plate also can't remove at will simultaneously, makes the more firm work of projecting apparatus.
Description
Technical Field
The invention relates to a podium, in particular to a video display podium.
Background
The podium is the teaching aid of necessary when the teacher lecture, and the podium generally can be placed to the chalk, put textbook, teaching aid, and the podium can help the wide field of vision of teacher simultaneously, the subtle change of insight student.
The video demonstration podium among the prior art at present, generally including the base, the protection piece, the rail guard, transparent glass, the arm-tie, the sliding plate, the stay cord, the locating rack, the bull stick, clamp splice and projecting apparatus, the base top is equipped with the protection piece, the protection piece top is equipped with the rail guard, rail guard front side middle part is equipped with transparent glass, protection piece upper portion slidingtype is equipped with the arm-tie, lower part front side slidingtype is equipped with the sliding plate in the protection piece, the arm-tie left and right sides all is equipped with the stay cord, two stay cords front side bottoms are connected with the sliding plate, sliding plate top left and right sides all is equipped with the locating rack through the bolt, lower part all slidingtype is equipped with the slider in two locating racks, two slider medial surfaces all are equipped with the clamp splice, two clamp splice pass through bolted connection's mode and connect, the projecting apparatus has been placed between two clamp splice, teacher's pulling arm-tie drives the stay cord to the rear side and moves, the stay cord pulling sliding plate upward side moves, the lower part front side slidingtype is equipped with the sliding plate, the slider upward side moves, the slider upward side drives the slider upward side, two clamp splice, the slider upward side moves, just runs the protection piece, two clamp splice, the clamp splice upward side and then drives the projecting apparatus and the projecting apparatus rotates, can's of projecting apparatus, can't start to rotate, and can't rotate to the projecting apparatus, and can't be carried out to the projector, and can't rotate, and can't start the projecting apparatus and can't be carried out and can't rotate, and can't move easily.
In view of the above problems, a video display platform is provided that can clamp a slide plate so that a projector can work more stably.
Disclosure of Invention
In order to overcome the defect that the platform cannot clamp the sliding plate, so that the sliding plate is easy to move at will, and the projector cannot work stably, the technical problem of the invention is 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 podium comprising:
the protection block is arranged at the top of the base;
the top of the protective block is provided with a protective rail;
transparent glass is arranged in the middle of the front side of the protective fence;
the upper part of the protection block is provided with a pull plate in a sliding manner;
the sliding plate is arranged on the front side of the lower part in the protection block in a sliding manner;
the left side and the right side of the pull plate are respectively provided with a pull rope, the two pull ropes penetrate through the protection 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 provided with limiting frames through bolts;
the sliding blocks are arranged in the two limiting frames in a sliding mode;
the inner side surfaces of the two sliding blocks are respectively provided with a rotating rod in a rotating way;
the clamping blocks are rotationally arranged on the inner side surfaces of the two rotating rods, and the two clamping blocks are connected in a bolt connection mode;
the projector is arranged between the two clamping blocks;
the rear side of the upper part in the protection block is provided with a clamping block in a sliding way, and the pull plate is contacted with the clamping block;
the two first return springs are arranged between the clamping block and the protection block;
the clamping mechanism is arranged in the protective block and used for clamping the sliding plate, and the clamping mechanism is matched with the sliding plate;
the protection mechanism is arranged at the rear side of the protection block and is used for protecting teaching supplies placed in the protection block and preventing the teaching supplies in the protection block from being influenced by external environmental factors.
More preferably, the detent mechanism includes:
the first connecting plate is arranged at the rear side of the bottom of the sliding plate;
the left side and the right side of the rear side of the first connecting plate are respectively provided with a first wedge block;
the middle part inside the protection block is provided with the second connecting plate in a sliding manner;
the second reset springs are arranged between the second connecting plate and the protective block;
the left side and the right side of the front side of the second connecting plate are respectively provided with a second wedge block, and the two first wedge blocks are contacted with the second wedge blocks on the same side;
push blocks are arranged on the left side and the right side of the top of the second connecting plate.
More preferably, the guard mechanism includes:
the left side and the right side of the rear side of the protection block are respectively provided with a first protection plate in a sliding mode, the two first protection plates are contacted, and the two first protection plates are connected with the base in a sliding mode;
the limiting plates are arranged on the left side and the right side of the rear side face of the top of the base, the two limiting plates are contacted with the protection block, and the two first protection plates are contacted with the limiting plates on the same side;
draw the piece, two first guard plates rear side middle parts all are equipped with and draw the piece, and two draw the piece to outside removal and homonymy limiting plate contact, and the limiting plate is used for carrying out spacingly to drawing the piece.
More preferably, the door opening device further comprises a door opening mechanism, and 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 at the rear side of the inside of the base in a sliding way and is contacted with the two connecting blocks;
and two return springs are arranged between the pedal and the base.
More preferably, the noise reduction device further comprises a noise reduction mechanism, and the noise reduction mechanism comprises:
the front side of the inside of the protection block is provided with a support plate, and the support plate is positioned below the sliding plate;
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 protection block.
More preferably, the device further comprises a lifting mechanism, wherein the lifting mechanism comprises:
the left side and the right side of the top of the sliding plate are respectively provided with a screw in a rotating way, and the two rotating rods are in threaded fit with the screws on the same side;
the lower parts of the two screws are respectively provided with a rotating disc;
the connecting rod is rotationally arranged between the eccentric positions of the bottoms of the two rotating discs.
More preferably, the device further comprises a placement mechanism, wherein the placement mechanism comprises:
the left side and the right side of the top of the protective fence are provided with supporting seats symmetrically in front-back, and the number of the supporting seats is four;
the baffle plates are rotatably arranged on the inner side surfaces of the four supporting seats;
torsion springs are arranged between the four baffles and the supporting seats on the same side;
limiting blocks are arranged on the inner side surfaces of the four baffles;
the second protection plate on the left side is connected with the two limiting 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 positioned in the protection block;
the clamping blocks are arranged on the rear sides of the tops of the pull plates and clamp 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 effects after adopting above-mentioned technical scheme are: 1. 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 works 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 external environments, 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 takes teaching tools in the protection block, so that the first protection plate can be opened, and the teacher can take the teaching tools conveniently;
4. the supporting plate is driven to move downwards through the sliding plate, the supporting plate drives the noise reduction cotton to move downwards, and the noise reduction cotton can block noise generated by the impact force of the downward movement of the sliding plate.
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 section a of the present invention.
Fig. 6 is a schematic perspective view of a positioning mechanism according to 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 a protection mechanism according to the present invention.
Fig. 9 is a schematic perspective view of a door opening mechanism according to the present invention.
Fig. 10 is a first partial cross-sectional view of the door opening mechanism of the present invention.
Fig. 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 reduction 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 a lifting mechanism according to the present invention.
Fig. 15 is a partial cross-sectional view of the lift mechanism of the present invention.
Fig. 16 is a schematic perspective view of a placement mechanism according to the present invention.
Fig. 17 is an enlarged view of section B of the present invention.
Fig. 18 is a partial cross-sectional view of the placement mechanism of the present invention.
The marks of the components in the drawings are as follows: 1. base, 2, protective block, 3, guard rail, 4, transparent glass, 5, pull plate, 6, slide plate, 7, pull rope, 8, limit frame, 9, rotating rod, 10, clamping block, 11, projector, 12, clamping block, 121, first return spring, 13, clamping mechanism, 130, first connecting plate, 131, first wedge block, 132, second connecting plate, 133, second wedge block, 134, push block, 135, second return spring, 14, protective mechanism, 140, first guard plate, 141, pull block, 142, limit plate, 15, door opening mechanism, 150, connecting block, 151, first compression spring, 152, pedal, 153, return spring, 16, noise reduction mechanism, 160, support plate, 161, noise reduction cotton, 162, second compression spring, 17, lifting mechanism, 170, screw, 171, rotating disc, 172, connecting rod, 18, placement mechanism, 180, support base, 181, baffle plate, 182, torsion spring, 183, stopper, first guard plate, 185, clamping block.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
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 pull plate 5, a sliding plate 6, pull 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 pull plate 5 is arranged at the upper part of the protective block 2 in a sliding manner, a handle is arranged in the middle of the rear side of the pull plate 5, the pull plate 5 is used for a teacher to pull the handle to drive the pull plate 5 to move, the sliding plate 6 is arranged at the front side of the lower part in the protective block 2, pull ropes 7 penetrate through the protective block 2 at the left and right sides of the pull plate 5, the front bottoms of the two pull ropes 7 are connected with the sliding plate 6, the limiting frames 8 are arranged at the left and right sides of the top of the sliding plate 6 through bolts, the two limiting frames 8 are internally and slidably provided with sliding blocks, the inner side surfaces of the two sliding blocks are rotatably provided with rotating rods 9, the inner side surfaces of the two rotating rods 9 are rotatably provided with clamping blocks 10, the two clamping blocks 10 are connected in a bolt connection mode, a projector 11 is arranged between the two clamping blocks 10, a clamping block 12 is slidably arranged at the rear part of the inner upper part of the protection block 2, a pull plate 5 is contacted with the clamping block 12, a bayonet matched with the clamping block 12 is arranged at the bottom of the pull plate 5 and used for clamping the pull plate 5, two first return springs 121 are arranged between the clamping block 12 and the protection block 2, a clamping mechanism 13 is arranged in the protection block 2 and matched with the sliding plate 6 and used for clamping the sliding plate 6, the free movement of the sliding plate 6 is prevented, a protection mechanism 14 is arranged at the rear side of the protection block 2 and used for protecting teaching articles placed in the protection block 2, the teaching supplies in the protection block 2 are prevented from being influenced by external environmental factors.
As shown in fig. 1, 6 and 7, the clamping mechanism 13 comprises a first connecting plate 130, a first wedge 131, a second connecting plate 132, a second wedge 133, a push block 134 and a second return spring 135, wherein the first connecting plate 130 is arranged at the rear side of the bottom of the sliding plate 6, the first wedge 131 is arranged at the left and right sides of the rear side of the first connecting plate 130, the second connecting plate 132 is arranged in the middle of the inside of the protection block 2 in a sliding manner, two second return springs 135 are arranged between the second connecting plate 132 and the protection block 2, the second wedge 133 is arranged at the left and right sides of the front side of the second connecting plate 132, the two first wedges 131 are in contact with the second wedges 133 at the same side, and the push block 134 is arranged at 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 a first protection plate 140, a pull block 141 and a limiting plate 142, the left and right sides of the rear side of the protection block 2 are slidably provided with the first protection plate 140, the two first protection plates 140 are in contact with each other, the two first protection plates 140 are slidably connected with the base 1, the left and right sides of the rear side of the top of the base 1 are provided with the limiting plate 142, the two limiting plates 142 are in contact with the protection block 2, the two first protection plates 140 are in contact with the limiting plate 142 on the same side, the middle parts of the rear sides of the two first protection plates 140 are provided with the pull block 141, the two pull blocks 141 move outwards and are in contact with the limiting plate 142 on the same side, and the limiting plate 142 is used for limiting the pull block 141.
When a teacher needs to use the video display platform, firstly, the teacher conveys the platform to a position needing to be used, then the teacher pulls the handle to drive the pull plate 5 to move to the rear side, the pull plate 5 pulls the upper end of the pull rope 7 to move to the rear side, the lower end of the pull rope 7 drives the sliding plate 6 to move to the upper side, the sliding plate 6 drives the first connecting plate 130 to move to the upper side, the first connecting plate 130 drives the first wedge block 131 to move to the upper side, the first wedge block 131 moves to be in contact with the second wedge block 133, so as to squeeze the second wedge block 133, the second wedge block 133 drives the second connecting plate 132 to move to the rear side, the second connecting plate 132 drives the push block 134 to move to the rear side, the second return spring 135 is compressed, the pull rope 7 continuously pulls the sliding plate 6 to move to the upper side, the sliding plate 6 drives the first connecting plate 130 to move to the upper side, the first connecting plate 130 drives the first wedge block 131 to move to the upper side, the first wedge 131 is separated from the second wedge 133, the second connecting plate 132 drives the push block 134 to move forward under the reset action of the second reset spring 135, meanwhile, the second connecting plate 132 drives the second wedge 133 to move forward, the second wedge 133 moves forward to prop against the first wedge 131, so that the first wedge 131 is not easy to move randomly, the sliding plate 6 is also not easy to move randomly, the projector 11 can perform 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 the moment, a teacher starts the projector 11 to work, the projector 11 projects images through the transparent glass 4, the teacher drives the clamping block 10 to rotate through rotating the rotating rod 9, the clamping block 10 drives the projector 11 to rotate, thereby adjusting the projector 11 to a proper angle, the projector 11 is convenient for reflecting the image, the teacher carries out teaching explanation on the projected image, meanwhile, the pull plate 5 moves to the rear side until the bayonet is corresponding 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 to the upper side and is clamped with the bayonet on the pull plate 5, so that the pull plate 5 is not easy to move at will, then the teacher pulls the pull block 141 to drive the first protection plate 140 to move outwards, the pull block 141 moves outwards and contacts with the limiting plate 142, the limiting plate 142 clamps the pull block 141, so that the pull block 141 cannot move, meanwhile, the first protection plate 140 cannot move randomly, and then the teacher places teaching aid in the protection block 2, after the teaching is completed, the teacher pushes the pull block 141 to drive the first protection plate 140 to move inwards for resetting, the first protection plate 140 blocks the protection block 2, the first protection plate 140 can prevent teaching tools in the protection block 2 from being influenced by external environment, after the teaching is completed, the teacher closes the projector 11 to stop the projector 11, then the teacher reversely rotates the rotating rod 9, the rotating rod 9 drives the clamping block 10 to reversely rotate for resetting, the clamping block 10 drives the projector 11 to reversely rotate for resetting, 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 the first wedge block 131, the second wedge block 133 cannot prop against the first wedge block 131, then the teacher pulls the clamping block 12 to move downwards, the first return spring 121 is compressed, the clamping block 12 moves downwards and is separated from the bayonet of the pull plate 5, then the teacher pushes the handle to drive the pull plate 5 to move forwards for return, the pull plate 5 drives the pull rope 7 to move forwards, so that the pull rope 7 is loosened, under the action of the gravity of the projector 11, the sliding plate 6 moves downwards, the sliding plate 6 drives the first connecting plate 130 to move downwards, the first connecting plate 130 drives the first wedge 131 to move downwards for return, meanwhile, the sliding plate 6 drives the limiting frame 8 to move downwards, the limiting frame 8 drives the sliding block to move downwards, the sliding block drives the rotating rod 9 to move downwards, the rotating rod 9 drives the clamping block 10 to move downwards, the clamping block 10 drives the projector 11 to move downwards for return, the projector 11 moves downwards for retraction, damage caused by the projector 11 can be effectively prevented, then the teacher does not apply force to the pushing block 134 any more, under the reset action of the second reset spring 135, the second connecting plate 132 drives the push block 134 to move forward for reset, the second connecting plate 132 drives the second wedge block 133 to move forward for reset, after the projector 11 works for a long time, the internal parts of the projector 11 are easy to damage, at this time, the teacher rotates the bolts on the clamping blocks 10, so that the clamping blocks 10 on two sides are not 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 contacted with the projector 11 any more, the teacher takes out the projector 11, then a new projector 11 is placed on the clamping block 10 on the left side, then the teacher pulls the sliding block on the right side to move downwards along the limiting frame 8 on the right side, the sliding block 9 on the right side drives the rotating rod 9 on the right side to move downwards for reset, the clamp splice 10 on right side that right side bull stick 9 drove the right side moves down and resets, and both sides clamp splice 10 contact, the teacher just installs the bolt back on the clamp splice 10 to the teacher reverse rotation bolt, make the bolt carry out the chucking to both sides clamp splice 10, clamp splice 10 presss from both sides tight to projecting apparatus 11, finally alright realize moving out the work to projecting apparatus 11, the teacher of being convenient for uses projecting apparatus 11, can prevent simultaneously that projecting apparatus 11 from moving at will, make projecting apparatus 11 more firm carry out the work, can accomodate projecting apparatus 11, prevent 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 mechanism 15 is further included, the door opening mechanism 15 includes a connection block 150, a first compression spring 151, a pedal 152 and return springs 153, the connection blocks 150 are disposed on the outer sides of the front sides of the two first protection plates 140, the first compression spring 151 is disposed between the two connection blocks 150, the pedal 152 is disposed in the rear side sliding manner inside the base 1, the pedal 152 contacts with the two connection blocks 150, and the two return springs 153 are disposed between the pedal 152 and the base 1.
Under normal condition, footboard 152 is chucking to two connecting blocks 150 for connecting block 150 is difficult for removing at will, when the teacher need take teaching articles for use, the teacher presses footboard 152, footboard 152 downside moves, return spring 153 is compressed, footboard 152 downside moves and breaks away from the contact with connecting block 150, the initial condition of first compression spring 151 is compressed state, under the reset effect of first compression spring 151, connecting block 150 drives first guard plate 140 to move to the outside, at this moment first guard plate 140 is opened, the teacher alright take the teaching articles for use in the guard block 2, after the teaching articles for use is got, the teacher just pulls first guard plate 140 inwards to move, first guard plate 140 blocks protective block 2, simultaneously first guard plate 140 drives connecting block 150 to move inwards, first compression spring 151 is compressed, after connecting block 150 inwards moves to reset, the teacher just no longer exerts force to footboard 152, under the reset effect of return spring 153, footboard 152 moves upwards and resets with both sides connecting block 150 contact, thereby carry out chucking to connecting block 150, make connecting block 150 unable remove at will, first guard plate 140 moves inwards, first guard plate 140 is moved inwards to move at will, first guard plate 140 is convenient for taking teaching articles for use is realized, and teacher can's 140 is opened to assist.
As shown in fig. 12 and 13, the noise reduction mechanism 16 further includes a noise reduction mechanism 16, where the noise reduction mechanism 16 includes a support plate 160, noise reduction cotton 161 and second compression springs 162, the support plate 160 is slidably disposed in front of the inside of the protection block 2, the support plate 160 is located below the sliding plate 6, the noise reduction cotton 161 is disposed in the support plate 160, the noise reduction cotton 161 is located below the sliding plate 6, and two second compression springs 162 are disposed between the support plate 160 and the protection block 2.
And at the upward side of sliding plate 6 removal, sliding plate 6 and backup pad 160 break away from the contact, the initial condition of second compression spring 162 is compressed state, under the reset action of second compression spring 162, backup pad 160 upwards moves, backup pad 160 drives the cotton 161 that makes an uproar upwards moves, backup pad 160 and the cotton 161 that makes an uproar upwards move with sliding plate 6, when sliding plate 6 moves downwards, sliding plate 6 extrudees backup pad 160, backup pad 160 drives the cotton 161 that makes an uproar downwards moves, second compression spring 162 is compressed, thereby the noise that makes an uproar 161 can block the noise that produces by the impulsive force when sliding plate 6 moves downwards, finally alright realize reducing the noise that sliding plate 6 moves impulsive force and produce downwards, make sliding plate 6 life increase.
As shown in fig. 1, 14 and 15, the lifting mechanism 17 is further included, the lifting mechanism 17 includes a screw 170, a rotating disc 171 and a connecting rod 172, the screws 170 are rotatably disposed on the left side and the right side of the top of the sliding plate 6, two rotating rods 9 are in threaded engagement with the screws 170 on the same side, the rotating discs 171 are disposed on the lower portions of the two screws 170, and the connecting rod 172 is rotatably disposed between the eccentric positions of the bottoms of the two rotating discs 171.
When the projector 11 needs to be adjusted in height, a teacher rotates the right screw 170, the right screw 170 drives the right rotating disc 171 to rotate, the right rotating disc 171 drives the connecting rod 172 to rotate in the process of rotating the projector 11, the connecting rod 172 drives the left rotating disc 171 to rotate, the left rotating disc 171 drives the left screw 170 to rotate, the two side screws 170 simultaneously rotate to enable the rotating rod 9 to move towards the upper side, the rotating rod 9 drives the clamping block 10 to move towards the upper side, the clamping block 10 drives the projector 11 to move towards the upper side, the rotating rod 9 drives the sliding block to move towards the upper side 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 back, the teacher reversely rotates the right screw 170, the right screw 170 drives the right rotating disc 171 to rotate, the right rotating disc 171 drives the connecting rod 172 to rotate in the process of rotating disc 171, the connecting rod 172 drives the left rotating disc 171 to rotate in the reverse, the left rotating disc 171 drives the left rotating rod 170 to rotate, the two side screws 170 to rotate in the reverse, the rotating rod 9 drives the clamping block 10 to move towards the lower side, and the clamping block 10 is driven towards the lower side, and the sliding block 10 is reset towards the lower side, and the projector 11 is driven towards the lower side to move towards the limiting frame 11.
As shown in fig. 1, fig. 2, fig. 16, fig. 17 and fig. 18, the device further comprises a placement mechanism 18, the placement mechanism 18 comprises a supporting seat 180, baffle plates 181, torsion springs 182, limiting blocks 183, second protection plates 184 and clamping blocks 185, the supporting seat 180 is symmetrically arranged on the left side and the right side of the top of the protective guard 3, four supporting seats 180 are arranged in total, baffle plates 181 are rotatably arranged on the inner side surfaces of the four supporting seats 180, torsion springs 182 are arranged between the four baffle plates 181 and the supporting seat 180 on the same side, limiting blocks 183 are arranged on the inner side surfaces of the four baffle plates 181, the second protection plates 184 on the left side are connected with the two limiting blocks 183 on the left side in a sliding mode, the second protection plates 184 on the right side are connected with the two limiting blocks 183 on the right side in a sliding mode, the two second protection plates 184 are arranged inside the protection blocks 2, and the clamping blocks 185 are arranged on the rear side of the top of the pulling plate 5, and the two second protection plates 184 are clamped.
When a teacher pulls the handle to drive the pull plate 5 to move to the rear side, the pull plate 5 drives the clamping block 185 to move to the rear side, then the teacher pulls the second protection plate 184 to move to the upper side along the limiting block 183, then the teacher rotates the second protection plate 184 to open, at the moment, 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 pull plate 5 to move to the front side, the pull plate 5 drives the clamping block 185 to move to the front side, the clamping block 185 moves to contact with the second protection plate 184, the clamping block 185 clamps the second protection plate 184, the second protection plate 184 cannot rotate at will, and then the teacher places a book above the second protection plate 184, after the teaching is finished, a teacher picks up the book, then the teacher pulls the handle to drive the pull plate 5 to move to the rear side, the pull plate 5 drives the clamping block 185 to move to 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 reversely rotates and resets, the baffle 181 drives the limiting block 183 reversely rotates and resets, the limiting block 183 drives the second protection plate 184 to reversely rotate and reset and pack, then the teacher pushes the second protection plate 184 to move to the lower side along the limiting block 183, the second protection plate 184 moves to the inside of the protection block 2, after the second protection plate 184 packs, the space can be saved, and finally the purpose of placing the book of the teacher and saving the space can be achieved.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are 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 (6)
1. A video presentation podium, comprising:
the protection block (2) is arranged at the top of the base (1);
the protective fence (3) is arranged at the top of the protective block (2);
transparent glass (4), wherein the transparent glass (4) is arranged in the middle of the front side of the protective fence (3);
the upper part of the protection block (2) is provided with a pull plate (5) in a sliding manner;
the sliding plate (6) is arranged on the front side of the inner lower part of the protection block (2) in a sliding manner;
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 protection block (2), and the bottoms of the front sides of the two pull ropes (7) are connected with the sliding plate (6);
the limiting frames (8) are arranged on the left side and the right side of the top of the sliding plate (6) through bolts;
the inside of the two limiting frames (8) is provided with a sliding block in a sliding manner;
the inner side surfaces of the two sliding blocks are respectively provided with a rotating rod (9) in a rotating way;
the clamping blocks (10) are rotatably arranged on the inner side surfaces of the two rotating rods (9), and the two clamping blocks (10) are connected in a bolt connection mode;
a projector (11), wherein the projector (11) is arranged between the two clamping blocks (10);
the clamping block (12) is arranged at the rear side of the inner upper part of the protection block (2), the clamping block (12) is arranged at the rear side of the inner upper part of the protection block, and the pull plate (5) is contacted with the clamping block (12);
the two first return springs (121) are arranged between the clamping block (12) and the protection block (2);
the clamping mechanism (13) is arranged in the protective block (2), the clamping mechanism (13) used for clamping the sliding plate (6) is arranged in the protective block, and the clamping mechanism (13) is matched with the sliding plate (6);
the protection mechanism (14) is arranged at the rear side of the protection block (2) and is used for protecting teaching supplies placed in the protection block (2) and preventing the teaching supplies in the protection block (2) from being influenced by external environmental factors;
the detent 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 respectively provided with a first wedge block (131);
the middle inside the protection block (2) is provided with the second connecting plate (132) in a sliding manner;
the second return springs (135), two second return springs (135) are arranged between the second connecting plate (132) and the protection 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 contacted with the second wedge blocks (133) on the same side;
the pushing blocks (134) are arranged on the left side and the right side of the top of the second connecting plate (132);
the protection mechanism (14) comprises:
the left side and the right side of the rear side of the protection block (2) are provided with first protection plates (140) in a sliding mode, the two first protection plates (140) are contacted, and the two first protection plates (140) are connected with the base (1) in a sliding mode;
the limiting plates (142) are arranged on the left side and the right side of the rear side face of the top of the base (1), the two limiting plates (142) are contacted with the protection block (2), and the two first protection plates (140) are contacted with the limiting plates (142) on the same side;
the pull blocks (141) are arranged in the middle of the rear sides of the two first protection plates (140), the two pull blocks (141) move outwards to be in contact with limiting plates (142) on the same side, and the limiting plates (142) are used for limiting the pull blocks (141).
2. A video presentation podium as recited in claim 1, further comprising a door opening mechanism (15), the door opening mechanism (15) comprising:
the outer sides of the front sides of the two first protection plates (140) are respectively provided with a connecting block (150);
a first compression spring (151), wherein the first compression spring (151) is arranged between the two connecting blocks (150);
a pedal (152), wherein the pedal (152) is arranged at the rear side of the inside of the base (1), and the pedal (152) is contacted with the two connecting blocks (150);
and two return springs (153) are arranged between the pedal (152) and the base (1).
3. A video presentation podium as recited in claim 2, further comprising a noise reduction mechanism (16), the noise reduction mechanism (16) comprising:
the front side of the inside of the protection block (2) is slidingly provided with a support plate (160), and the support plate (160) is positioned below the sliding plate (6);
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);
and two second compression springs (162) are arranged between the supporting plate (160) and the protection block (2).
4. A video presentation podium as recited in claim 3, further comprising a lifting mechanism (17), the lifting mechanism (17) comprising:
the screw rod (170) is rotatably arranged at 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 rod (170) at the same side;
a rotating disc (171), wherein the lower parts of the two screws (170) are respectively provided with the rotating disc (171);
the connecting rod (172) is rotatably arranged between the eccentric positions of the bottoms of the two rotating discs (171).
5. A video presentation podium as recited in claim 4, further comprising a placement mechanism (18), the placement mechanism (18) comprising:
the support seats (180) are symmetrically arranged on the left side and the right side of the top of the guard rail (3), and the number of the support seats (180) is four;
the baffle plates (181) are rotatably arranged on the inner side surfaces of the four supporting seats (180);
torsion springs (182), and torsion springs (182) are arranged between the four baffles (181) and the supporting seat (180) on the same side;
the limiting blocks (183) are arranged on the inner side surfaces of the four baffles (181);
the second protection plate (184), 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 second protection plates (184) on the right side are connected with the two limiting blocks (183) on the right side in a sliding mode, and the two second protection plates (184) are positioned in the protection block (2);
the clamping blocks (185) are arranged on the rear side of the top of the pull plate (5), and the clamping blocks (185) clamp the two second protection plates (184).
6. A video presentation podium as claimed in claim 1, characterized in that the bottom of the pull plate (5) is provided with a bayonet cooperating 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 |
Publications (2)
| Publication Number | Publication Date |
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| CN114431606A CN114431606A (en) | 2022-05-06 |
| CN114431606B true 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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| Country | Link |
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| CN (1) | CN114431606B (en) |
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| CN114431606A (en) | 2022-05-06 |
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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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