CN114347700B - Up-down push-pull blackboard with blackboard eraser - Google Patents
Up-down push-pull blackboard with blackboard eraser Download PDFInfo
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- CN114347700B CN114347700B CN202210140351.7A CN202210140351A CN114347700B CN 114347700 B CN114347700 B CN 114347700B CN 202210140351 A CN202210140351 A CN 202210140351A CN 114347700 B CN114347700 B CN 114347700B
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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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The invention relates to a blackboard, in particular to an up-down push-pull blackboard with a blackboard eraser. The invention provides an up-down push-pull blackboard with a blackboard eraser, which can replace the blackboard eraser. An up-down push-pull blackboard with a blackboard eraser, comprising: the left side and the right side of the supporting plate are provided with connecting plates; the front side of the supporting plate is provided with a writing board; the middle parts in the two connecting plates are respectively provided with a connecting frame, and the two connecting frames are connected with the writing board; and a protective shell is arranged between the tops of the two connecting plates. According to the invention, the motor is used as a driving force, so that the sliding block drives the upper side of the transmission rod to move, and the transmission rod drives the fixed block and the cleaning eraser to move upwards, so that the cleaning eraser wipes texts on the writing board, and the manual implementation of wiping work can be reduced, and the working efficiency is improved.
Description
Technical Field
The invention relates to a blackboard, in particular to an up-down push-pull blackboard with a blackboard eraser.
Background
The blackboard is used for teaching by a teacher, a text is written on the blackboard, and then the text is explained, so that the blackboard is convenient for students to understand.
Patent application CN209274222U, the publication day is 20190820, discloses a blackboard is used in teaching from taking blackboard wiping arrangement, includes clipboard, goes up frame, lower frame, left side frame, right side frame, drawer type album ash box and blackboard wiping arrangement, go up frame, lower frame, left side frame and right side frame and divide to establish around the clipboard, drawer type album ash box slides and sets up lower frame upper portion, and one end wears to establish in right side frame or left side frame to contradict with right side frame or left side frame inner wall, the other end stretches out left side frame or right side frame to contradict with left side frame or right side frame outer wall, blackboard wiping arrangement sets up in the clipboard openly to closely laminate with the positive elasticity of clipboard, just blackboard wiping arrangement one end with go up frame sliding connection, the other end and lower frame sliding connection. Although the above patent can wipe the blackboard text and has good wiping effect, the above patent cannot replace the blackboard eraser, and the same blackboard eraser is used for a long time, so that a lot of dust is easy to accumulate, and the blackboard eraser cannot wipe the blackboard cleanly.
Accordingly, in view of the above, there is provided a vertically sliding blackboard with a self-contained blackboard eraser capable of replacing the blackboard eraser.
Disclosure of Invention
In order to overcome the defect that the blackboard eraser cannot be replaced by the blackboard eraser, the same blackboard eraser is used for a long time, and dust is easy to accumulate, so that the blackboard eraser cannot clean the blackboard, the technical problem to be solved is as follows: provided is a vertically push-pull blackboard with a blackboard eraser capable of replacing the blackboard eraser.
Compared with the prior art, the invention is technically characterized in that: an up-down push-pull blackboard with a blackboard eraser, comprising:
the left side and the right side of the supporting plate are provided with connecting plates;
the front side of the supporting plate is provided with a writing board;
the middle parts in the two connecting plates are respectively provided with a connecting frame, and the two connecting frames are connected with the writing board;
a protective shell is arranged between the tops of the two connecting plates;
the left side and the right side of the rear side of the protective shell are respectively provided with a fixed plate, and the two fixed plates are connected with the connecting plates on the same side;
the inner front sides of the two connecting plates are respectively provided with a sliding rail;
the sliding blocks are arranged at the inner lower parts of the sliding rails at the left side and the right side in a sliding manner;
the transmission rod is rotatably arranged between the two sliding blocks;
the outer side of the transmission rod is uniformly provided with four fixed blocks at intervals;
the outer sides of the four fixing blocks are provided with cleaning wipes;
the bottom of the supporting plate is provided with a lifting mechanism for automatically driving the cleaning wiper to move, and the lifting mechanism is matched with the two sliding blocks;
the lower part of the front side of the supporting plate is provided with a turnover mechanism for replacing the cleaning wiper, and the turnover mechanism is matched with the transmission rod.
In one embodiment, the lifting mechanism comprises:
the screw is rotationally arranged in the slide rails at the left side and the right side, and the two sliding blocks are in threaded fit with the screw at the same side;
the motor is arranged at the lower part of the inner rear side of the supporting plate;
the lower parts of the two screws are respectively provided with a first belt pulley, and the output shaft of the motor is provided with a first belt pulley;
and the first flat belts are wound among the three first belt pulleys.
In one embodiment, the flipping mechanism comprises:
the left side and the right side of the lower part of the front side of the supporting plate are respectively provided with a first supporting block;
the ratchet bars are arranged on the front sides of the two first supporting blocks;
the ratchet gears are arranged on the left side and the right side of the transmission rod, and the two ratchet gears are meshed with the ratchet bars on the same side.
In one embodiment, the device further comprises a clamping mechanism, wherein the clamping mechanism comprises:
the front side and the rear side of the inner lower part of the sliding rail at the left side and the right side are respectively provided with a second supporting block;
the sliding rods are arranged on the four second supporting blocks in a sliding manner;
the clamping rods are arranged at the inner ends of the four sliding rods;
the first return springs are arranged between the four sliding rods and the second supporting blocks on the same side;
the front side and the rear side of the inner side surfaces of the two sliding blocks are respectively provided with a third supporting block;
the wedge-shaped plates are arranged on the four third supporting blocks in a sliding mode, the four wedge-shaped plates are in sliding fit with the transmission rods, and the four clamping rods are in sliding fit with the wedge-shaped plates on the same side;
and return springs are arranged between the four wedge-shaped plates and the third supporting blocks at the same side.
In one embodiment, the device further comprises a dust-proof mechanism, wherein the dust-proof mechanism comprises:
the middle parts of the outer sides of the two connecting plates are respectively provided with a first supporting rod;
the rotating rods are rotatably arranged on the two first supporting rods;
the two rotating rods are respectively provided with a protection plate, and the two protection plates are in contact fit;
transparent plates are arranged in the middle of the two protection plates;
the middle part of the front side of the protection plate on the right side is provided with a handle, and the middle part of the front side of the protection plate on the left side is rotationally provided with a handle;
the clamping block is arranged on the handle on the left side and is in running fit with the protection plate on the right side.
In one embodiment, the device further comprises a rotating mechanism, wherein the rotating mechanism comprises:
the bottom parts of the two connecting plates are respectively provided with a fixing rod;
the rotating shafts are rotatably arranged on the two fixing rods;
the bottoms of the two rotating rods are respectively provided with a gear plate;
the two rotating shafts are provided with oblique blocks in a sliding mode, and the two oblique blocks are in contact fit with the gear disc on the same side;
the second return springs are arranged between the two inclined blocks and the rotating shafts on the same side;
the middle of the bottom of the supporting plate is rotatably provided with a second supporting rod;
the second support rod and the motor output shaft are respectively provided with a spur gear, and the two spur gears are meshed;
the second belt pulleys are arranged on the two rotating shafts, the second supporting rod is provided with the second belt pulleys, and the motor output shaft is provided with the second belt pulleys;
the second flat belt is wound between the second belt pulley on the right rotating shaft and the second belt pulley on the motor output shaft, and the second flat belt is wound between the second belt pulley on the second supporting rod and the second belt pulley on the left rotating shaft.
In one embodiment, a cleaning mechanism is further included, the cleaning mechanism including:
the left side and the right side of the bottom of the supporting plate are respectively provided with a supporting frame;
a limiting block is arranged between the two supporting frames;
the front side in the limiting block is provided with a placing frame in a sliding mode, and the placing frame is positioned below the cleaning wiper;
the front side of the placement frame is provided with a pull rod.
In one embodiment, the two fixing plates are provided with through holes matched with the bolts.
Compared with the prior art, the invention has the following advantages: 1. according to the invention, the motor is used as a driving force, so that the sliding block drives the upper side of the transmission rod to move, and the transmission rod drives the fixed block and the cleaning eraser to move upwards, so that the cleaning eraser wipes texts on the writing board, and the manual implementation of wiping work can be reduced, and the working efficiency is improved;
2. the ratchet wheel is matched with the ratchet bar, so that the transmission rod is driven to rotate, and the transmission rod drives the fixed block and the cleaning eraser to rotate, so that the cleaning eraser is replaced, and the text on the writing board can be wiped cleanly when the cleaning eraser wipes the writing board next time;
3. under normal state, the protection plate is used for blocking the writing board, so that when the text on the protection plate is wiped by the cleaning wiper, chalk dust can be effectively prevented from being blown away by natural wind.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of a first part of the present invention.
Fig. 3 is a schematic perspective view of a second part of the present invention.
Fig. 4 is a schematic perspective view of a third portion of the present invention.
Fig. 5 is a partial cross-sectional view of the present invention.
Fig. 6 is a schematic perspective view of a lifting mechanism according to the present invention.
Fig. 7 is a partial cross-sectional view of the lift mechanism of the present invention.
Fig. 8 is a schematic perspective view of a turnover mechanism according to the present invention.
Fig. 9 is a schematic perspective view of a turnover mechanism part of the present invention.
Fig. 10 is a schematic perspective view of a positioning mechanism according to the present invention.
Fig. 11 is a schematic perspective view of a part of a detent mechanism according to the present invention.
Fig. 12 is an enlarged view of section a of the present invention.
Fig. 13 is a schematic perspective view of a dust-proof mechanism of the present invention.
Fig. 14 is a partial cross-sectional view of a dust control mechanism of the present invention.
Fig. 15 is a schematic perspective view of a rotating mechanism according to the present invention.
Fig. 16 is a first partial cross-sectional view of the rotary mechanism of the present invention.
Fig. 17 is a second partial cross-sectional view of the rotary mechanism of the present invention.
Fig. 18 is a schematic view showing a first perspective structure of the cleaning mechanism of the present invention.
Fig. 19 is a schematic view showing a second perspective structure of the cleaning mechanism of the present invention.
Reference numerals in the figures: 1. the cleaning device comprises a supporting plate, 2, a connecting plate, 3, a writing board, 4, a connecting frame, 5, a protective shell, 6, a fixing plate, 7, a cleaning brush, 8, a fixing block, 9, a transmission rod, 10, a sliding block, 11, a sliding rail, 12, a lifting mechanism, 120, a screw rod, 121, a motor, 122, a first belt pulley, 123, a first flat belt, 13, a tilting mechanism, 130, a ratchet gear, 131, a first supporting block, 132, a ratchet rack, 14, a clamping mechanism, 140, a second supporting block, 141, a sliding rod, 142, a first return spring, 143, a clamping rod, 144, a third supporting block, 145, a wedge plate, 146, a return spring, 15, a dustproof mechanism, 150, a first supporting rod, 151, a rotating rod, 152, a protective plate, 153, a transparent plate, 154, a handle, 155, a clamping block, 16, a rotating mechanism, 160, a fixing rod, 161, a rotating shaft, 162, a gear disc, 163, a tilting block, 164, a second return spring, 165, a second supporting rod, 166, a straight gear, a second belt pulley, 168, a second belt pulley, a 168, a second supporting rod, 17, a supporting frame, a cleaning frame, a supporting frame, a 173, a cleaning frame, a holding frame, and the cleaning frame.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described 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
The up-down push-pull blackboard with blackboard eraser comprises a supporting plate 1, a connecting plate 2, a writing board 3, a connecting frame 4, a protecting shell 5, a fixing plate 6, a cleaning eraser 7, a fixing block 8, a transmission rod 9, a sliding block 10, a sliding rail 11, a lifting mechanism 12 and a turnover mechanism 13, wherein the connecting plate 2 is arranged at the left side and the right side of the supporting plate 1, the writing board 3 is arranged at the front side of the supporting plate 1, the writing board 3 is used for writing texts, the connecting frames 4 are arranged at the middle parts in the two connecting plates 2, the two connecting frames 4 are connected with the writing board 3, the protecting shell 5 is arranged between the tops of the two connecting plates 2, the protecting shell 5 is used for shielding dust, the fixing plates 6 are arranged at the left side and the right side of the rear side of the protecting shell 5, the two fixing plates 6 are connected with the connecting plates 2 at the same side, through holes matched with bolts are formed in the two fixing plates 6, the fixing plate 6 is conveniently arranged on a designated position by a teacher through a bolt connection mode, the fixing plate is convenient to detach, the front sides in the two connecting plates 2 are respectively provided with a sliding rail 11, the inner lower parts of the sliding rails 11 on the left side and the right side are respectively provided with a sliding block 10 in a sliding mode, a transmission rod 9 is rotationally arranged between the two sliding blocks 10, four fixing blocks 8 are uniformly arranged on the outer sides of the transmission rods 9 at intervals, cleaning wipes 7 are respectively arranged on the outer sides of the four fixing blocks 8, the cleaning wipes 7 are used for wiping texts on the writing plate 3, the cleaning wipes 7 are made of sponge materials, the texts on the writing plate 3 are better wiped, the bottom of the supporting plate 1 is provided with a lifting mechanism 12, the lifting mechanism 12 is matched with the two sliding blocks 10 and is used for automatically driving the cleaning wipes 7 to wipe the texts on the writing plate 3, the lower part of the front side of the supporting plate 1 is provided with a turnover mechanism 13, the turnover mechanism 13 is matched with the transmission rod 9, for replacing the cleaning wipe 7.
As shown in fig. 2, 6 and 7, the lifting mechanism 12 comprises a screw 120, a motor 121, a first belt pulley 122 and a first flat belt 123, the screw 120 is rotatably arranged in the sliding rails 11 on the left side and the right side, two sliding blocks 10 are in threaded fit with the screw 120 on the same side, the motor 121 is installed at the lower part of the rear side in the supporting plate 1, the first belt pulley 122 is arranged at the lower part of the two screws 120, the first belt pulley 122 is arranged on the output shaft of the motor 121, and the first flat belt 123 is wound between the three first belt pulleys 122.
As shown in fig. 2, 8 and 9, the turnover mechanism 13 comprises ratchet gears 130, first supporting blocks 131 and ratchet bars 132, wherein the left side and the right side of the lower part of the front side of the supporting plate 1 are respectively provided with the first supporting blocks 131, the front sides of the two first supporting blocks 131 are respectively provided with the ratchet bars 132 in a sliding manner, a reset spring is arranged between each ratchet bar 132 and each first supporting block 131, the left side and the right side of the transmission rod 9 are respectively provided with the ratchet gears 130, and the two ratchet gears 130 are meshed with the ratchet bars 132 on the same side.
When the up-down push-pull blackboard with the blackboard eraser is needed, firstly, a teacher installs the blackboard on a designated position through a fixing plate 6 in a bolt connection mode, then the teacher can write characters on a writing board 3, then the teacher carries out teaching and teaching, after the teaching work of the teacher is finished, a motor 121 can be started, an output shaft of the motor 121 is controlled to rotate positively, the output shaft of the motor 121 drives a first belt pulley 122 in the middle to rotate, under the cooperation of the first belt pulley 122 and a first flat belt 123, the first belt pulley 122 drives a screw 120 to rotate, a sliding block 10 moves upwards along a sliding rail 11, the sliding block 10 drives a transmission rod 9 to move upwards, the transmission rod 9 drives a fixing block 8 to move upwards with a cleaning eraser 7, the cleaning eraser 7 moves upwards to uniformly contact with the writing board 3, and therefore the cleaning eraser 7 wipes the text on the writing board 3, simultaneously, the driving rod 9 drives the ratchet gear 130 to move upwards, the ratchet gear 130 is contacted with the ratchet bar 132, the ratchet bar 132 moves backwards, the ratchet gear 130 slides over the ratchet bar 132, when the cleaning wiper 7 moves upwards to the upper side of the writing board 3, the output shaft of the motor 121 is controlled to rotate reversely, the output shaft of the motor 121 drives the first belt pulley 122 to rotate reversely, the first belt pulley 122 drives the screw 120 to rotate reversely under the cooperation of the first belt pulley 122 and the first flat belt 123, then the sliding block 10 moves downwards along the sliding rail 11, the sliding block 10 drives the driving rod 9 to move downwards, the driving rod 9 drives the fixed block 8 and the cleaning wiper 7 to move downwards, the cleaning wiper 7 moves downwards to wipe the text on the writing board 3 again, meanwhile, the driving rod 9 drives the ratchet gear 130 to move downwards, the ratchet gear 130 moves downwards to contact with the ratchet bar 132, the ratchet gear 130 rotates, the driving rod 9 is driven by the ratchet gear 130 to rotate, the transmission rod 9 drives the fixed block 8 and the cleaning eraser 7 to rotate by one fourth, and then the cleaning eraser 7 is replaced, so that the cleaning eraser 7 can clean texts on the writing board 3 when the writing board 3 is wiped next time, a teacher turns off the motor 121, finally, automatic wiping of the texts written on the writing board 3 can be realized, manual operation is reduced, and meanwhile the frequency of absorbing chalk dust by the teacher can be reduced.
Example 2
On the basis of embodiment 1, as shown in fig. 2, 10, 11 and 12, the device further comprises a clamping mechanism 14, the clamping mechanism 14 comprises a second supporting block 140, sliding rods 141, a first return spring 142, clamping rods 143, a third supporting block 144, wedge plates 145 and return springs 146, the second supporting blocks 140 are respectively arranged on the front side and the rear side of the lower portion in the sliding rail 11 on the left side and the right side, the sliding rods 141 are respectively arranged on the four second supporting blocks 140 in a sliding mode, the clamping rods 143 are respectively arranged on the inner ends of the four sliding rods 141, a first return spring 142 is respectively arranged between the four sliding rods 141 and the second supporting blocks 140 on the same side, the front side and the rear side of the inner side of each sliding block 10 are respectively provided with a third supporting block 144, the four wedge plates 145 are respectively arranged on the four third supporting blocks 144 in a sliding mode with the transmission rods 9, the return springs 146 are respectively arranged between the four wedge plates 145 and the third supporting blocks 144 on the same side, and the four clamping rods 143 are respectively in a sliding mode with the wedge plates on the same side.
In a normal state, the wedge plate 145 is clamped with the driving rod 9, so that the driving rod 9 cannot rotate at will, when the sliding block 10 drives the driving rod 9 to move upwards, the sliding block 10 drives the third supporting block 144 and the wedge plate 145 to move upwards, the wedge plate 145 moves upwards to be in contact with the clamping rod 143, the clamping rod 143 presses, the clamping rod 143 drives the sliding rod 141 to move outwards, the first reset spring 142 is compressed, the sliding block 10 continues to drive the third supporting block 144 and the wedge plate 145 to move upwards, the wedge plate 145 moves to be out of contact with the clamping rod 143, the sliding rod 141 drives the clamping rod 143 to move inwards to reset under the reset action of the first reset spring 142, and meanwhile, the driving rod 9 drives the ratchet gear 130 to move upwards, and the ratchet gear 130 passes over the ratchet rack 132; when the slider 10 drives the transmission rod 9 to move downwards, the slider 10 drives the third supporting block 144 to move downwards with the wedge plate 145, the wedge plate 145 moves to be in contact with the clamping rod 143, the clamping rod 143 extrudes the wedge plate 145, the wedge plate 145 moves outwards, the return spring 146 is compressed, the wedge plate 145 is separated from the transmission rod 9, at the moment, the transmission rod 9 drives the ratchet wheel 130 to move downwards, the ratchet wheel 130 moves downwards to be in contact with the ratchet bar 132, the ratchet wheel 130 rotates, the ratchet wheel 130 drives the transmission rod 9 to rotate, the transmission rod 9 drives the fixing block 8 to rotate by one fourth with the cleaning wiper 7, the cleaning wiper 7 is replaced, the slider 10 continuously drives the third supporting block 144 to move downwards with the clamping rod 143, the wedge plate 145 moves to be separated from the clamping rod 143, the wedge plate 145 moves inwards to move inwards to reset under the reset action of the return spring 146, the transmission rod 9 cannot rotate at will, and the random rotation of the transmission rod 9 can be realized, and the random rotation of the clamping transmission rod 9 is prevented.
As shown in fig. 1, fig. 13 and fig. 14, the dustproof mechanism 15 is further included, the dustproof mechanism 15 includes a first support bar 150, a rotating bar 151, a protection plate 152, a transparent plate 153, a handle 154 and a clamping block 155, the middle parts of the outer sides of the two connecting plates 2 are all provided with the first support bar 150, the rotating bars 151 are all rotatably arranged on the two first support bars 150, the protection plates 152 are all arranged on the two rotating bars 151, the two protection plates 152 are in contact fit, the two protection plates 152 are located on the outer sides of the writing board 3, the middle parts of the two protection plates 152 are all provided with the transparent plate 153, a teacher views whether the cleaning wiper 7 wipes the text on the writing board 3, the middle part of the front side of the protection plate 152 on the right side is provided with the handle 154, the middle part of the front side of the protection plate 152 on the left side is rotatably provided with the handle 154, the two handle 154 are both provided with anti-slip gloves for the teacher to apply work to the handle 154, the anti-slip effect can be provided with the clamping block 155 on the handle 154 on the left side, and the clamping block 155 is in running fit with the protection plate 152 on the right side.
In a normal state, the protection plate 152 is used for blocking the writing board 3, the clamping block 155 is used for clamping the protection plate 152 on the right side, so that the protection plate 152 is not easy to rotate and open, the chalk dust is easily blown away by natural wind force when the cleaning wiper 7 wipes texts on the writing board 3, so that the chalk dust is scattered in the air, more chalk dust is easily sucked by people to cause pulmonary infection, therefore, when the protection plate 152 is used for blocking the writing board 3, a teacher can start the motor 121 to control the output shaft of the motor 121 to rotate positively, the output shaft of the motor 121 drives the first belt pulley 122 in the middle to rotate, the first belt pulley 122 drives the screw 120 to rotate under the cooperation of the first belt pulley 122 and the first flat belt 123, the sliding block 10 moves upwards along the sliding rail 11, the sliding block 10 drives the transmission rod 9 to move upwards, the transmission rod 9 drives the fixed block 8 and the cleaning wiper 7 to move upwards, the cleaning wiper 7 moves upwards to be in uniform contact with the writing board 3, so that the cleaning wiper 7 wipes texts on the writing board 3, the protection plate 152 can block chalk dust from drifting, people can watch whether the cleaning wiper 7 wipes the texts on the writing board 3 through the transparent plate 153, after the texts on the writing board 3 are wiped clean, a teacher rotates the left handle 154 to drive the clamping block 155 to rotate, the clamping block 155 is separated from the right protection plate 152, the teacher pulls the handle 154 to drive the protection plate 152 to rotate and open through the rotating rod 151, then the writing board 3 can be used, when the writing board is not needed to be used, the teacher can push the handle 154 to drive the protection plate 152 to reversely rotate and close through the rotating rod 151, then the teacher reversely rotates the left handle 154 to drive the clamping block 155 to reversely rotate, the clamping block 155 clamps the protection plate 152, and then a teacher turns off the motor 121, so that the writing board 3 can be blocked when the cleaning wiper 7 wipes the writing board 3, and the chalk dust can be prevented from being blown away by natural wind.
As shown in fig. 1, fig. 2, fig. 15, fig. 16 and fig. 17, the device further comprises a rotating mechanism 16, the rotating mechanism 16 comprises a fixed rod 160, a rotating shaft 161, a gear disc 162, a bevel block 163, a second return spring 164, a second supporting rod 165, a spur gear 166, a second belt pulley 167 and a second flat belt 168, the bottom of the two connecting plates 2 is provided with the fixed rod 160, the rotating shafts 161 are respectively and rotatably arranged on the two fixed rods 160, the bottom of the two rotating rods 151 is respectively provided with the gear disc 162, the upper parts of the two rotating shafts 161 are respectively and slidably provided with the bevel block 163, the two bevel blocks 163 are in contact fit with the gear disc 162 on the same side, a second return spring 164 is respectively arranged between the two bevel blocks 163 and the rotating shafts 161 on the same side, a second supporting rod 165 is rotatably arranged in the middle of the bottom of the supporting plate 1, the second supporting rod 165 is respectively provided with the spur gear 166 on the output shaft of the motor 121, the two spur gears 166 are meshed with the second belt pulleys 167, the second supporting rod 165 is respectively arranged on the second supporting rod 167, the output shaft of the motor 121 is provided with the second belt 167, the second belt pulley 167 is respectively, the output shaft of the motor 121 is provided with the second belt pulley 167, the second belt 167 is connected between the second belt pulley 167 and the second flat belt 167 on the output shaft 121 and the second belt 168 on the second side of the same side, and the second belt 168.
When the protection plate 152 needs to be automatically driven to rotate and open, a teacher starts the motor 121, the output shaft of the motor 121 is controlled to rotate positively, the output shaft of the motor 121 drives the rear side spur gear 166 to rotate and then drives the front side spur gear 166 to rotate, the front side spur gear 166 drives the second supporting rod 165 to rotate, the second supporting rod 165 and the output shaft of the motor 121 simultaneously drive the second belt pulley 167 to rotate, under the cooperation of the second belt pulley 167 and the second flat belt 168, the second belt pulley 167 drives the rotating shaft 161 to rotate, the rotating shaft 161 drives the gear disc 162 to rotate, the gear disc 162 rotates to contact with the inclined block 163, the inclined block 163 moves inwards, the second reset spring 164 is compressed, the gear disc 162 drives the rotating rod 151 to rotate, the rotating rod 151 drives the protection plate 152 to rotate and open, the protection plate 152 can not block the writing board 3, the teacher can write a text on the writing board 3 after the protection plate 152 rotates and opens, the teacher turns off the motor 121, the rotation shaft 161 stops rotating, the bevel block 163 moves outwards to contact teeth between the gear plates 162 under the reset action of the second reset spring 164 and clamps the gear plates 162, so that the rotating rod 151 cannot rotate at will, when the protection plate 152 needs to be turned off, the teacher starts the motor 121 to control the output shaft of the motor 121 to rotate reversely, the output shaft of the motor 121 drives the rear spur gear 166 to rotate reversely, then drives the front spur gear 166 to rotate reversely, the front spur gear 166 drives the second support rod 165 to rotate reversely, the second support rod 165 and the output shaft of the motor 121 simultaneously drive the second belt pulley 167 to rotate reversely, the second belt pulley 167 drives the rotation shaft 161 to rotate reversely under the cooperation of the second belt pulley 167 and the second flat belt 168, the rotation shaft 161 drives the gear plates 162 to rotate reversely, the gear plates 162 squeeze the bevel block 163, and the bevel block 163 moves outwards, the second reset spring 164 is compressed, the gear plate 162 drives the rotating rod 151 to rotate reversely, the rotating rod 151 drives the protection plate 152 to rotate reversely and reset, the protection plate 152 blocks the writing board 3, then a teacher turns off the motor 121, the rotating shaft 161 stops rotating, the inclined block 163 moves inwards to reset under the reset action of the second reset spring 164, the inclined block 163 moves between the teeth of the gear plate 162, the gear plate 162 is clamped, and finally the purpose of driving the protection plate 152 to rotate automatically and open can be achieved.
As shown in fig. 1, 2, 18 and 19, the cleaning device further comprises a cleaning mechanism 17, the cleaning mechanism 17 comprises a supporting frame 170, a limiting block 171, a placing frame 172 and a pull rod 173, the supporting frame 170 is arranged on the left side and the right side of the bottom of the supporting plate 1, the limiting block 171 is arranged between the two supporting frames 170, the placing frame 172 is arranged on the inner front side of the limiting block 171 in a sliding mode, the placing frame 172 is used for containing clean water, the placing frame 172 is located below the cleaning wiper 7, and the pull rod 173 is arranged on the front side of the placing frame 172.
Because the writing board 3 uses for a long time, can accumulate more spot, if the cleaning wipe 7 just simply cleans writing board 3, just be difficult to clean the spot, at this moment can be to cleaning wipe 7 and be stained with water and contact with writing board 3, thereby can clean the spot on the writing board 3, at first the teacher pulls pull rod 173 earlier and drives and place frame 172 along stopper 171 forward side removal, then the teacher will clear water pour into place frame 172, then promote pull rod 173 and drive place frame 172 and move backward and reset, place frame 172 is located cleaning wipe 7 below, cleaning wipe 7 and place frame 172 internal clear water contact, the clear water can wet cleaning wipe 7, when cleaning wipe 7 moves along writing board 3 upside, just can clean the spot on writing board 3, finally alright realize cleaning the spot on writing board 3.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (5)
1. An up-down push-pull blackboard with a blackboard eraser, which is characterized in that: comprising the following steps:
the left side and the right side of the supporting plate (1) are provided with connecting plates (2);
a writing board (3), wherein the front side of the supporting board (1) is provided with the writing board (3);
the middle parts in the two connecting plates (2) are respectively provided with a connecting frame (4), and the two connecting frames (4) are connected with the writing board (3);
the protection shell (5) is arranged between the tops of the two connecting plates (2);
the fixing plates (6) are arranged on the left side and the right side of the rear side of the protective shell (5), and the two fixing plates (6) are connected with the connecting plates (2) on the same side;
the sliding rails (11) are arranged on the inner front sides of the two connecting plates (2);
the sliding blocks (10) are arranged at the inner lower parts of the sliding rails (11) at the left side and the right side in a sliding manner;
the transmission rod (9) is rotatably arranged between the two sliding blocks (10);
the outer sides of the transmission rods (9) are uniformly provided with four fixed blocks (8) at intervals;
the cleaning wiper (7) is arranged at the outer sides of the four fixing blocks (8);
the lifting mechanism (12) is arranged at the bottom of the supporting plate (1), the lifting mechanism (12) is used for automatically driving the cleaning wiper (7) to move, and the lifting mechanism (12) is matched with the two sliding blocks (10);
the turnover mechanism (13) is arranged at the lower part of the front side of the supporting plate (1), the turnover mechanism (13) is used for replacing the cleaning wiper (7), and the turnover mechanism (13) is matched with the transmission rod (9);
the lifting mechanism (12) comprises:
the screw (120) is rotatably arranged in the sliding rails (11) on the left side and the right side, and the two sliding blocks (10) are in threaded fit with the screw (120) on the same side;
a motor (121), wherein the motor (121) is arranged at the lower part of the inner rear side of the supporting plate (1);
the lower parts of the two screws (120) are respectively provided with a first belt pulley (122), and the output shaft of the motor (121) is provided with the first belt pulleys (122);
a first flat belt (123), wherein the first flat belt (123) is wound between the three first belt pulleys (122);
the tilting mechanism (13) comprises:
the left side and the right side of the lower part of the front side of the supporting plate (1) are provided with first supporting blocks (131);
the ratchet bars (132) are arranged on the front sides of the two first supporting blocks (131);
the ratchet gears (130) are arranged on the left side and the right side of the transmission rod (9), and the two ratchet gears (130) are meshed with the ratchet bars (132) on the same side;
still including screens mechanism (14), screens mechanism (14) include:
the second supporting blocks (140) are arranged on the front side and the rear side of the inner lower part of the sliding rail (11) on the left side and the right side;
the sliding rods (141) are arranged on the four second supporting blocks (140) in a sliding manner;
the clamping rods (143) are arranged at the inner ends of the four sliding rods (141);
the first return springs (142) are arranged between the four sliding rods (141) and the second supporting blocks (140) on the same side;
the front side and the rear side of the inner side surfaces of the two sliding blocks (10) are respectively provided with a third supporting block (144);
the wedge-shaped plates (145) are arranged on the four third supporting blocks (144) in a sliding mode, the four wedge-shaped plates (145) are in sliding fit with the transmission rods (9), and the four clamping rods (143) are in sliding fit with the wedge-shaped plates (145) on the same side;
and return springs (146) are arranged between the four wedge-shaped plates (145) and the third supporting blocks (144) on the same side.
2. A top-bottom push-pull blackboard with a blackboard eraser according to claim 1, characterized in that: still including dustproof mechanism (15), dustproof mechanism (15) include:
the middle parts of the outer sides of the two connecting plates (2) are respectively provided with a first supporting rod (150);
the rotating rods (151) are rotatably arranged on the two first support rods (150);
the protection plates (152) are arranged on the two rotating rods (151), the protection plates (152) are in contact fit with each other;
the transparent plates (153) are arranged in the middle of the two protection plates (152);
a handle (154), the middle part of the front side of the protection plate (152) on the right side is provided with the handle (154), and the middle part of the front side of the protection plate (152) on the left side is rotatably provided with the handle (154);
the clamping block (155) is arranged on the handle (154) on the left side, and the clamping block (155) is in running fit with the protection plate (152) on the right side.
3. A top-bottom push-pull blackboard with a blackboard eraser according to claim 2, characterized in that: also comprises a rotating mechanism (16), wherein the rotating mechanism (16) comprises:
the bottoms of the two connecting plates (2) are respectively provided with a fixed rod (160);
a rotating shaft (161), wherein the rotating shafts (161) are rotatably arranged on the two fixed rods (160);
the bottoms of the two rotating rods (151) are respectively provided with a gear disc (162);
the inclined blocks (163) are arranged on the two rotating shafts (161) in a sliding mode, and the two inclined blocks (163) are in contact fit with the gear discs (162) on the same side;
a second return spring (164), wherein the second return spring (164) is arranged between the two inclined blocks (163) and the rotating shaft (161) on the same side;
the second supporting rod (165) is rotatably arranged in the middle of the bottom of the supporting plate (1);
the straight gears (166), the second support rod (165) and the output shaft of the motor (121) are respectively provided with a straight gear (166), and the two straight gears (166) are meshed;
the second belt pulleys (167) are arranged on the two rotating shafts (161), the second belt pulleys (167) are arranged on the second supporting rods (165), and the second belt pulleys (167) are arranged on the output shafts of the motors (121);
a second flat belt (168) is wound between a second belt pulley (167) on the right rotating shaft (161) and a second belt pulley (167) on the output shaft of the motor (121), and a second flat belt (168) is wound between a second belt pulley (167) on the second supporting rod (165) and a second belt pulley (167) on the left rotating shaft (161).
4. A top-bottom push-pull blackboard with a blackboard eraser according to claim 3, characterized in that: also comprises a cleaning mechanism (17), wherein the cleaning mechanism (17) comprises:
the support frames (170) are arranged on the left side and the right side of the bottom of the support plate (1);
a limiting block (171) is arranged between the two supporting frames (170);
the front side in the limiting block (171) is slidably provided with a placing frame (172), and the placing frame (172) is positioned below the cleaning wiper (7);
and a pull rod (173), wherein the pull rod (173) is arranged at the front side of the placement frame (172).
5. A top-bottom push-pull blackboard with a blackboard eraser according to claim 1, characterized in that: the two fixing plates (6) are provided with through holes matched with bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210140351.7A CN114347700B (en) | 2022-02-16 | 2022-02-16 | Up-down push-pull blackboard with blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210140351.7A CN114347700B (en) | 2022-02-16 | 2022-02-16 | Up-down push-pull blackboard with blackboard eraser |
Publications (2)
| Publication Number | Publication Date |
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| CN114347700A CN114347700A (en) | 2022-04-15 |
| CN114347700B true CN114347700B (en) | 2023-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210140351.7A Active CN114347700B (en) | 2022-02-16 | 2022-02-16 | Up-down push-pull blackboard with blackboard eraser |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114851748B (en) * | 2022-05-11 | 2024-07-05 | 南京浩与浩科技咨询有限公司 | Interconnection blackboard convenient to switch black and white screen |
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| CN209274222U (en) * | 2018-12-29 | 2019-08-20 | 黄郅睿 | A kind of blackboard for teaching of included blackboard-cleaning device |
| CN111775594A (en) * | 2020-06-11 | 2020-10-16 | 高秀侠 | Blackboard for teaching |
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| CN211968991U (en) * | 2020-04-09 | 2020-11-20 | 兰州文理学院 | Interactive auxiliary device is used in college foreign language teaching |
| CN213322420U (en) * | 2020-08-19 | 2021-06-01 | 郑州大学第二附属医院 | Economics teaching board |
| CN112895767A (en) * | 2021-02-04 | 2021-06-04 | 深圳华文网教育科技有限公司 | Teaching blackboard capable of automatically stretching |
| CN113978163A (en) * | 2021-11-30 | 2022-01-28 | 安徽信息工程学院 | Intelligent blackboard convenient to use |
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2022
- 2022-02-16 CN CN202210140351.7A patent/CN114347700B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209274222U (en) * | 2018-12-29 | 2019-08-20 | 黄郅睿 | A kind of blackboard for teaching of included blackboard-cleaning device |
| CN211892636U (en) * | 2020-04-01 | 2020-11-10 | 江西中医药大学 | English learning teaching aid |
| CN211968991U (en) * | 2020-04-09 | 2020-11-20 | 兰州文理学院 | Interactive auxiliary device is used in college foreign language teaching |
| CN111775594A (en) * | 2020-06-11 | 2020-10-16 | 高秀侠 | Blackboard for teaching |
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| CN114347700A (en) | 2022-04-15 |
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Effective date of registration: 20230717 Address after: No.2, Keji Road, high tech Industrial Development Zone, Ankang City, Shaanxi Province Applicant after: Shaanxi Puxin Lingdu Technology Service Co.,Ltd. Address before: 330199 room 716, 7 / F, building 2, 799 Honggutan Avenue, Honggutan new area, Nanchang City, Jiangxi Province Applicant before: Xiong Wanchuan |
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