CN112895769B - Push-pull blackboard for English teaching - Google Patents
Push-pull blackboard for English teaching Download PDFInfo
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- CN112895769B CN112895769B CN202110237394.2A CN202110237394A CN112895769B CN 112895769 B CN112895769 B CN 112895769B CN 202110237394 A CN202110237394 A CN 202110237394A CN 112895769 B CN112895769 B CN 112895769B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
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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
- G09B19/00—Teaching not covered by other main groups of this subclass
- G09B19/06—Foreign languages
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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
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
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- Entrepreneurship & Innovation (AREA)
- Drawing Aids And Blackboards (AREA)
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Abstract
The invention discloses a push-pull blackboard for English teaching, belongs to the technical field of teaching equipment, and solves the problem that dust accumulated in the moving process of the existing teaching board is easy to spill out, so that the safety of teachers and students is harmed; the blackboard dust collector comprises a base and a driving groove, wherein the driving groove is formed in the base, a driving assembly is arranged in the driving groove, a lifting platform is arranged on the base and connected with the driving assembly, a limiting frame is arranged on the lifting platform, a blackboard assembly is arranged in the limiting frame, and two dust removing assemblies for removing dust from the blackboard assembly are symmetrically arranged in the lifting platform; the dust removal assembly is arranged in the embodiment of the invention, so that the dust removal assembly not only can fully absorb dust, but also can avoid the blockage of the dust on the filter screen, the contact area between the dust and the dust is increased, and the dust removal efficiency is obviously improved.
Description
Technical Field
The invention relates to the technical field of teaching equipment, in particular to a push-pull blackboard for English teaching.
Background
English teaching refers to the process of teaching english to persons whose english language is or is not the first language. English teaching relates to many professional theoretical knowledge, including linguistics, second language acquisition, vocabulary, sentence law, literature, corpus theory, cognitive psychology etc. content, and English teaching is a process that progresses gradually, and whether to the people that english is the first language or not, english study is all vital today in globalization rapid development.
In english teaching work, need practical to the teaching equipment of various come supplementary teaching, the blackboard is common teaching equipment, and at present stage, blackboard simple structure and function singleness can not satisfy current teaching demand, along with the continuous progress of technique, traditional blackboard and multimedia cooperation work realize that the teaching is done for probably.
Chinese patent CN208730637U discloses a teaching board is used in english teaching, including english teaching board, english teaching board's left side all is equipped with the mount with english teaching board's right side, fixedly connected with axis of rotation between two mounts, the one end of axis of rotation run through english teaching board and be connected with the external fixed surface of another mount, but this teaching board removes the easy spill of accumulational dust in-process, and then endangers teacher's safety, consequently, we propose a plug-type blackboard for english teaching.
Disclosure of Invention
The invention aims to provide a push-pull blackboard for English teaching, which comprises a base and a driving groove, wherein the driving groove is formed in the base, a driving assembly is arranged in the driving groove, a lifting table is arranged on the base and connected with the driving assembly, a limiting frame is arranged on the lifting table, a blackboard assembly is arranged in the limiting frame, and two dust removal assemblies for removing dust from the blackboard assembly are symmetrically arranged in the lifting table, so that the problem that dust accumulated in the moving process of an existing teaching board is easy to spill out, and the safety of teachers and students is further harmed is solved.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a plug-type blackboard for english teaching, includes base and drive groove, is provided with the drive groove in the base, is provided with drive assembly in the drive groove, is provided with the elevating platform on the base, and the elevating platform is connected with drive assembly, is provided with spacing on the elevating platform, installs blackboard subassembly in the spacing, and the symmetry is provided with two dust removal subassemblies that are used for removing dust to blackboard subassembly in the elevating platform.
As a further scheme of the invention: the driving assembly comprises a driving motor and a first screw rod, one end of the first screw rod is connected with the side wall of the driving groove in a rotating mode, the other end of the first screw rod is connected with the driving motor in an interference fit mode, the driving motor is fixedly installed on the side wall of the driving groove, two sections of external threads which are opposite in rotating direction and the same in thread pitch are symmetrically arranged on the first screw rod, and each section of the external threads are respectively sleeved with a thread block which is connected with the lifting platform through an extrusion assembly.
As a still further scheme of the invention: the extrusion assembly comprises a lower extrusion block and an upper extrusion block, the lower extrusion block and the thread block are fixedly connected through a bolt, one side, away from the thread block, of the lower extrusion block is provided with an inclined edge, the inclined edge is polished and processed, the inclined edge is also polished and processed on the upper extrusion block, the lower extrusion block is connected with the upper extrusion block in a sliding mode, and the upper extrusion block is fixedly connected with a lifting table through a connecting rod.
As a still further scheme of the invention: the drive inslot symmetry is provided with the subassembly that resets, and the subassembly that resets includes the cushion socket, and the cushion socket is fixed in the drive inslot, and fixed mounting has first buffer spring on the cushion socket, and first buffer spring keeps away from the one end fixedly connected with of cushion socket and goes up the extrusion piece.
As a still further scheme of the invention: the blackboard subassembly includes push-and-pull blackboard and horizontal guide rail, the push-and-pull blackboard is installed in the horizontal guide rail, and push-and-pull blackboard and horizontal guide rail sliding connection, the lateral wall fixed connection through bolt and spacing respectively at the both ends of horizontal guide rail, fixed mounting has the removal seat on the push-and-pull blackboard, one side fixed mounting who removes the seat has the horizontal rack, one side of horizontal rack is provided with first gear, the meshing transmission between horizontal rack and the first gear, first gear fixedly connected with suction tube, the one end fixedly connected with second screw rod of first gear is kept away from to the suction tube.
As a still further scheme of the invention: the dust removal subassembly includes the dust removal chamber, the one end that the pump bowl was kept away from to the second screw rod extends to in the dust removal chamber, and the intracavity slope of removing dust is provided with a plurality of filter screens, one side of filter screen rotates with the lateral wall in dust removal chamber to be connected, the opposite side of filter screen articulates there is articulated seat, articulated seat internalization is provided with first articulated piece, first articulated piece fixed mounting is on internal thread sleeve, through threaded connection between internal thread sleeve and the second screw rod, a plurality of dust extraction mouths have been seted up to the lateral wall of pump bowl, communicate through the pipe between pump bowl and the dust removal chamber.
As a still further scheme of the invention: the symmetry is provided with two display screen subassemblies on the base, and the display screen subassembly includes the display screen, and the display screen is connected with height adjusting assembly, and height adjusting assembly installs on the riser, and the riser is fixed on the base.
As a still further scheme of the invention: the height adjusting assembly comprises an adjusting motor, the adjusting motor is fixedly mounted on the vertical plate, the output end of the adjusting motor is fixedly connected with a cam, a first push rod is fixedly mounted on the side wall of the cam, a hinge groove is formed in the end portion of the first push rod, a second hinge block is movably mounted in the hinge groove, a third buffer spring used for protecting the second hinge block is further arranged in the hinge groove, a second push rod is hinged to the second hinge block, a second gear is hinged to one end, far away from the second hinge block, of the second push rod, the second gear is mounted on the vertical plate, the second gear is rotatably connected with the vertical plate, a vertical rack is arranged on one side of the second gear, meshing transmission is achieved between the second gear and the vertical rack, and the vertical rack is fixedly connected with a first lifting plate.
As a still further scheme of the invention: still be provided with the second lifter plate on the riser, second lifter plate and riser sliding connection, one side of second lifter plate is provided with the fourth buffer spring who is used for protecting the second lifter plate, fourth buffer spring fixes on the riser, one side fixedly connected with limiting plate of second lifter plate, the top of limiting plate is provided with the protection subassembly that is used for protecting the display screen subassembly, the protection subassembly includes the buffer board, buffer board and limiting plate sliding connection, one side fixed mounting of buffer board has a plurality of sliding sleeves, the sliding sleeve cover is established on the reference column, reference column and limiting plate fixed connection, fixed mounting has second buffer spring in the sliding sleeve, the one end and the reference column fixed connection of second buffer spring.
In conclusion, the beneficial effects of the invention are as follows: the embodiment of the invention is provided with the dust removal assembly, the dust removal assembly not only realizes the sufficient absorption of dust, but also avoids the blockage of the dust on the filter screen, the contact area between the dust and the dust is increased, the dust removal efficiency is obviously improved, the flexible adjustment of the height of the display screen assembly is realized by the arrangement of the height adjustment assembly, the sufficient protection of the display screen assembly is realized by the arrangement of the protection assembly, the damage of the display screen assembly is avoided, and the service life of the display screen assembly is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the invention.
Fig. 2 is a schematic structural diagram of the base of the present invention.
FIG. 3 is a schematic view of the buffer seat of the present invention.
Fig. 4 is a partially enlarged schematic view of a in fig. 1.
Fig. 5 is a schematic structural diagram of a dust removal assembly in the invention.
Fig. 6 is a partially enlarged schematic view of B in fig. 1.
Fig. 7 is a schematic structural diagram of the limiting plate of the invention.
Fig. 8 is a schematic structural diagram of a protection component in the invention.
In the figure: 1-base, 2-driving groove, 3-driving motor, 4-thread block, 5-lower extrusion block, 6-upper extrusion block, 7-buffer seat, 8-first buffer spring, 9-first screw, 10-spacing frame, 11-lifting platform, 12-protection component, 13-spacing plate, 14-display screen, 15-push-pull blackboard, 16-horizontal guide rail, 17-horizontal rack, 18-first gear, 19-air extraction cylinder, 20-dust removal cavity, 21-filter screen, 22-hinging seat, 23-first hinging block, 24-internal thread sleeve, 25-second screw, 26-positioning column, 27-sliding sleeve, 28-second buffer spring, 29-first lifting plate, 30-cam, etc, 31-a first push rod, 32-a hinge groove, 33-a second hinge block, 34-a third buffer spring, 35-a second push rod, 36-a second gear, 37-a vertical rack, 38-a second lifting plate, 39-a fourth buffer spring and 40-a vertical plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-2, in the embodiment of the present invention, an english teaching push-pull blackboard includes a base 1 and a driving groove 2, the driving groove 2 is disposed in the base 1, a driving assembly is disposed in the driving groove 2, a lifting table 11 is disposed on the base 1, the lifting table 11 is connected with the driving assembly, a limiting frame 10 is disposed on the lifting table 11, a blackboard assembly is mounted in the limiting frame 10, and two dust removing assemblies for removing dust from the blackboard assembly are symmetrically disposed in the lifting table 11;
the driving assembly comprises a driving motor 3 and a first screw 9, one end of the first screw 9 is rotatably connected with the side wall of the driving groove 2, the other end of the first screw 9 is connected with the driving motor 3 in an interference fit manner, the driving motor 3 is fixedly arranged on the side wall of the driving groove 2, two sections of external threads with opposite rotation directions and same thread pitch are symmetrically arranged on the first screw 9, each section of external thread is respectively sleeved with a thread block 4, and the thread blocks 4 are connected with the lifting table 11 through an extrusion assembly;
as shown in fig. 4, the extrusion assembly comprises a lower extrusion block 5 and an upper extrusion block 6, the lower extrusion block 5 and the thread block 4 are fixedly connected through bolts, one side of the lower extrusion block 5, which is far away from the thread block 4, is provided with a bevel edge, the bevel edge is polished, the upper extrusion block 6 is also provided with a bevel edge, the lower extrusion block 5 is slidably connected with the upper extrusion block 6, and the upper extrusion block 6 is fixedly connected with a lifting table 11 through a connecting rod;
as shown in fig. 3, further, in order to protect the extrusion assembly and the driving assembly, the driving groove 2 is symmetrically provided with a reset assembly, the reset assembly includes a buffer seat 7, the buffer seat 7 is fixed in the driving groove 2, a first buffer spring 8 is fixedly mounted on the buffer seat 7, and one end of the first buffer spring 8, which is far away from the buffer seat 7, is fixedly connected with the upper extrusion block 6;
when the height of the blackboard assembly needs to be adjusted, the driving motor 3 is started, the driving motor 3 drives the first screw rod 9 to rotate, and the first screw rod 9 drives the threaded block 4 to move in the same direction or in different directions, so that the threaded block 4 drives the lower extrusion block 5 to extrude the upper extrusion block 6, and the upper extrusion block 6 drives the lifting platform 11 and the blackboard assembly to move up and down, thereby realizing the adjustment of the height of the blackboard assembly;
the blackboard assembly comprises a push-pull blackboard 15 and a horizontal guide rail 16, the push-pull blackboard 15 is installed in the horizontal guide rail 16, the push-pull blackboard 15 is connected with the horizontal guide rail 16 in a sliding manner, two ends of the horizontal guide rail 16 are fixedly connected with the side wall of the limiting frame 10 through bolts respectively, a moving seat is fixedly installed on the push-pull blackboard 15, a horizontal rack 17 is fixedly installed on one side of the moving seat, a first gear 18 is arranged on one side of the horizontal rack 17, the horizontal rack 17 is in meshing transmission with the first gear 18, an air extracting cylinder 19 is fixedly connected with the first gear 18, and a second screw 25 is fixedly connected with one end, far away from the first gear 18, of the air extracting cylinder 19;
as shown in fig. 5, the dust removing assembly includes a dust removing cavity 20, one end of the second screw 25, which is far away from the air extracting cylinder 19, extends into the dust removing cavity 20, a plurality of filter screens 21 are obliquely arranged in the dust removing cavity 20, one side of each filter screen 21 is rotatably connected with the side wall of the dust removing cavity 20, the other side of each filter screen 21 is hinged with a hinge seat 22, a first hinge block 23 is movably arranged in each hinge seat 22, the first hinge block 23 is fixedly installed on an internal thread sleeve 24, and the internal thread sleeve 24 is in threaded connection with the second screw 25;
the side wall of the air extraction cylinder 19 is provided with a plurality of dust extraction ports, and the air extraction cylinder 19 is communicated with the dust removal cavity 20 through a conduit.
When the push-pull blackboard 15 is pushed and pulled, the push-pull blackboard 15 drives the horizontal rack 17 to move, so that the horizontal rack 17 drives the first gear 18 to rotate, the first gear 18 drives the air pumping cylinder 19 to rotate, the contact area between a dust pumping port and dust is increased, meanwhile, the air pumping cylinder 19 rotates to drive the second screw 25 to rotate, the second screw 25 pulls the internal thread sleeve 24 to move up and down, so that the internal thread sleeve 24 drives the first hinging block 23 to move, the first hinging block 23 drives the hinging seat 22 and the filter screen 21 to swing, and the filter treatment on the dust is realized.
The dust removal assembly not only realizes the sufficient absorption of dust, but also can avoid the blockage of the dust on the filter screen 21, increases the contact area with the dust, and obviously improves the dust removal efficiency.
Two display screen assemblies are symmetrically arranged on the base 1, each display screen assembly comprises a display screen 14, each display screen 14 is connected with a height adjusting assembly, each height adjusting assembly is arranged on a vertical plate 40, and each vertical plate 40 is fixed on the base 1;
as shown in fig. 6, the height adjusting assembly includes an adjusting motor, the adjusting motor is fixedly mounted on a vertical plate 40, an output end of the adjusting motor is fixedly connected with a cam 30, a first push rod 31 is fixedly mounted on a side wall of the cam 30, a hinge groove 32 is formed in an end portion of the first push rod 31, a second hinge block 33 is movably mounted in the hinge groove 32, a third buffer spring 34 for protecting the second hinge block 33 is further disposed in the hinge groove 32, the second hinge block 33 is hinged with a second push rod 35, a second gear 36 is hinged to an end of the second push rod 35 away from the second hinge block 33, the second gear 36 is mounted on the vertical plate 40, the second gear 36 is rotatably connected with the vertical plate 40, a vertical rack 37 is disposed on one side of the second gear 36, the second gear 36 is in meshing transmission with the vertical rack 37, and the vertical rack 37 is fixedly connected with a first lifting plate 29;
when the height of the display screen assembly needs to be adjusted, the adjusting motor is started, the adjusting motor drives the cam 30 to rotate, so that the cam 30 drives the first push rod 31 to swing, the first push rod 31 drives the second hinging block 33 to move, the second hinging block 33 drives the second push rod 35 to move, so that the second push rod 35 drives the second gear 36 to rotate, the second gear 36 drives the vertical rack 37 and the first lifting plate 29 to move up and down, and the height of the display screen assembly is adjusted.
Example 2
As shown in fig. 1-2, in the embodiment of the present invention, an english teaching push-pull blackboard includes a base 1 and a driving groove 2, the driving groove 2 is disposed in the base 1, a driving assembly is disposed in the driving groove 2, a lifting table 11 is disposed on the base 1, the lifting table 11 is connected with the driving assembly, a limiting frame 10 is disposed on the lifting table 11, a blackboard assembly is mounted in the limiting frame 10, and two dust removing assemblies for removing dust from the blackboard assembly are symmetrically disposed in the lifting table 11;
the driving assembly comprises a driving motor 3 and a first screw 9, one end of the first screw 9 is rotatably connected with the side wall of the driving groove 2, the other end of the first screw 9 is connected with the driving motor 3 in an interference fit manner, the driving motor 3 is fixedly arranged on the side wall of the driving groove 2, two sections of external threads with opposite rotation directions and same thread pitch are symmetrically arranged on the first screw 9, each section of external thread is respectively sleeved with a thread block 4, and the thread blocks 4 are connected with the lifting table 11 through an extrusion assembly;
as shown in fig. 4, the extrusion assembly comprises a lower extrusion block 5 and an upper extrusion block 6, the lower extrusion block 5 and the thread block 4 are fixedly connected through bolts, one side of the lower extrusion block 5, which is far away from the thread block 4, is provided with a bevel edge, the bevel edge is polished, the upper extrusion block 6 is also provided with a bevel edge, the lower extrusion block 5 is slidably connected with the upper extrusion block 6, and the upper extrusion block 6 is fixedly connected with a lifting table 11 through a connecting rod;
as shown in fig. 3, further, in order to protect the extrusion assembly and the driving assembly, the driving groove 2 is symmetrically provided with a reset assembly, the reset assembly includes a buffer seat 7, the buffer seat 7 is fixed in the driving groove 2, a first buffer spring 8 is fixedly mounted on the buffer seat 7, and one end of the first buffer spring 8, which is far away from the buffer seat 7, is fixedly connected with the upper extrusion block 6;
when the height of the blackboard assembly needs to be adjusted, the driving motor 3 is started, the driving motor 3 drives the first screw rod 9 to rotate, and the first screw rod 9 drives the threaded block 4 to move in the same direction or in different directions, so that the threaded block 4 drives the lower extrusion block 5 to extrude the upper extrusion block 6, and the upper extrusion block 6 drives the lifting platform 11 and the blackboard assembly to move up and down, thereby realizing the adjustment of the height of the blackboard assembly;
the blackboard assembly comprises a push-pull blackboard 15 and a horizontal guide rail 16, the push-pull blackboard 15 is installed in the horizontal guide rail 16, the push-pull blackboard 15 is connected with the horizontal guide rail 16 in a sliding manner, two ends of the horizontal guide rail 16 are fixedly connected with the side wall of the limiting frame 10 through bolts respectively, a moving seat is fixedly installed on the push-pull blackboard 15, a horizontal rack 17 is fixedly installed on one side of the moving seat, a first gear 18 is arranged on one side of the horizontal rack 17, the horizontal rack 17 is in meshing transmission with the first gear 18, an air extracting cylinder 19 is fixedly connected with the first gear 18, and a second screw 25 is fixedly connected with one end, far away from the first gear 18, of the air extracting cylinder 19;
as shown in fig. 5, the dust removing assembly includes a dust removing cavity 20, one end of the second screw 25, which is far away from the air extracting cylinder 19, extends into the dust removing cavity 20, a plurality of filter screens 21 are obliquely arranged in the dust removing cavity 20, one side of each filter screen 21 is rotatably connected with the side wall of the dust removing cavity 20, the other side of each filter screen 21 is hinged with a hinge seat 22, a first hinge block 23 is movably arranged in each hinge seat 22, the first hinge block 23 is fixedly installed on an internal thread sleeve 24, and the internal thread sleeve 24 is in threaded connection with the second screw 25;
the side wall of the air extraction cylinder 19 is provided with a plurality of dust extraction ports, and the air extraction cylinder 19 is communicated with the dust removal cavity 20 through a conduit.
When the push-pull blackboard 15 is pushed and pulled, the push-pull blackboard 15 drives the horizontal rack 17 to move, so that the horizontal rack 17 drives the first gear 18 to rotate, the first gear 18 drives the air pumping cylinder 19 to rotate, the contact area between a dust pumping port and dust is increased, meanwhile, the air pumping cylinder 19 rotates to drive the second screw 25 to rotate, the second screw 25 pulls the internal thread sleeve 24 to move up and down, so that the internal thread sleeve 24 drives the first hinging block 23 to move, the first hinging block 23 drives the hinging seat 22 and the filter screen 21 to swing, and the filter treatment on the dust is realized.
The dust removal assembly not only realizes the sufficient absorption of dust, but also can avoid the blockage of the dust on the filter screen 21, increases the contact area with the dust, and obviously improves the dust removal efficiency.
Two display screen assemblies are symmetrically arranged on the base 1, each display screen assembly comprises a display screen 14, each display screen 14 is connected with a height adjusting assembly, each height adjusting assembly is arranged on a vertical plate 40, and each vertical plate 40 is fixed on the base 1;
as shown in fig. 6, the height adjusting assembly includes an adjusting motor, the adjusting motor is fixedly mounted on a vertical plate 40, an output end of the adjusting motor is fixedly connected with a cam 30, a first push rod 31 is fixedly mounted on a side wall of the cam 30, a hinge groove 32 is formed in an end portion of the first push rod 31, a second hinge block 33 is movably mounted in the hinge groove 32, a third buffer spring 34 for protecting the second hinge block 33 is further disposed in the hinge groove 32, the second hinge block 33 is hinged with a second push rod 35, a second gear 36 is hinged to an end of the second push rod 35 away from the second hinge block 33, the second gear 36 is mounted on the vertical plate 40, the second gear 36 is rotatably connected with the vertical plate 40, a vertical rack 37 is disposed on one side of the second gear 36, the second gear 36 is in meshing transmission with the vertical rack 37, and the vertical rack 37 is fixedly connected with a first lifting plate 29;
when the height of the display screen assembly needs to be adjusted, the adjusting motor is started, the adjusting motor drives the cam 30 to rotate, so that the cam 30 drives the first push rod 31 to swing, the first push rod 31 drives the second hinge block 33 to move, the second hinge block 33 drives the second push rod 35 to move, the second push rod 35 drives the second gear 36 to rotate, the second gear 36 drives the vertical rack 37 and the first lifting plate 29 to move up and down, and the height of the display screen assembly is adjusted;
a second lifting plate 38 is further arranged on the vertical plate 40, the second lifting plate 38 is in sliding connection with the vertical plate 40, a fourth buffer spring 39 for protecting the second lifting plate 38 is arranged on one side of the second lifting plate 38, the fourth buffer spring 39 is fixed on the vertical plate 40, a limiting plate 13 is fixedly connected to one side of the second lifting plate 38, and a protection component 12 for protecting the display screen component is arranged at the top of the limiting plate 13;
the cam 30 rotates to drive the second lifting plate 38 to move up and down, so that the second lifting plate 38 drives the limiting plate 13 to move up and down, the limiting plate 13 drives the protection component 12 to move, the synchronous up and down movement with the display screen component is realized, and the full protection of the display screen component is realized;
as shown in fig. 7-8, protection component 12 includes the buffer board, buffer board and limiting plate 13 sliding connection, one side fixed mounting of buffer board has a plurality of sliding sleeves 27, sliding sleeve 27 cover is established on reference column 26, reference column 26 and limiting plate 13 fixed connection, fixed mounting has second buffer spring 28 in the sliding sleeve 27, the one end and the reference column 26 fixed connection of second buffer spring 28, protection component 12's setting has realized the abundant protection to the display screen subassembly, thereby the damage of display screen subassembly has been avoided, the service life of display screen subassembly has been prolonged.
The height adjusting assembly is arranged to flexibly adjust the height of the display screen assembly, meanwhile, the display screen assembly can be fully protected, and the protection assembly 12 is arranged to fully protect the display screen assembly, so that the damage to the display screen assembly is avoided, and the service life of the display screen assembly is prolonged.
In summary, the working principle of the invention is as follows: when the height of the blackboard assembly needs to be adjusted, the driving motor 3 is started, the driving motor 3 drives the first screw rod 9 to rotate, the first screw rod 9 drives the threaded block 4 to move in the same direction or in different directions, so that the threaded block 4 drives the lower extrusion block 5 to extrude the upper extrusion block 6, the upper extrusion block 6 drives the lifting platform 11 and the blackboard assembly to move up and down, and the adjustment of the height of the blackboard assembly is realized.
The cam 30 rotates to drive the second lifting plate 38 to move up and down, so that the second lifting plate 38 drives the limiting plate 13 to move up and down, the limiting plate 13 drives the protection component 12 to move, the synchronous up and down movement with the display screen component is realized, and the sufficient protection of the display screen component is realized.
When the push-pull blackboard 15 is pushed and pulled, the push-pull blackboard 15 drives the horizontal rack 17 to move, so that the horizontal rack 17 drives the first gear 18 to rotate, the first gear 18 drives the air pumping cylinder 19 to rotate, the contact area between a dust pumping port and dust is increased, meanwhile, the air pumping cylinder 19 rotates to drive the second screw 25 to rotate, the second screw 25 pulls the internal thread sleeve 24 to move up and down, so that the internal thread sleeve 24 drives the first hinging block 23 to move, the first hinging block 23 drives the hinging seat 22 and the filter screen 21 to swing, and the filter treatment on the dust is realized.
The dust removal assembly is arranged, so that dust can be fully absorbed by the dust removal assembly, meanwhile, the dust can be prevented from being blocked on the filter screen 21, the contact area between the dust and the dust is increased, the dust removal efficiency is obviously improved, the flexible adjustment of the height of the display screen assembly is realized by the arrangement of the height adjustment assembly, meanwhile, the display screen assembly can be fully protected, the display screen assembly is fully protected by the arrangement of the protection assembly 12, the damage to the display screen assembly is avoided, and the service life of the display screen assembly is prolonged.
Although several embodiments and examples of the present invention have been described to those skilled in the art, these embodiments and examples are provided as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in other various ways, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (1)
1. The push-pull blackboard for English teaching comprises a base (1) and a driving groove (2), wherein the driving groove (2) is formed in the base (1), a driving assembly is arranged in the driving groove (2), and a lifting platform (11) is arranged on the base (1), and is characterized in that the lifting platform (11) is connected with the driving assembly, a limiting frame (10) is arranged on the lifting platform (11), a blackboard assembly is installed in the limiting frame (10), two dust removal assemblies for removing dust from the blackboard assembly are symmetrically arranged in the lifting platform (11), the driving assembly comprises a driving motor (3) and a first screw (9), one end of the first screw (9) is rotatably connected with the side wall of the driving groove (2), the other end of the first screw (9) is connected with the driving motor (3) in an interference fit manner, the driving motor (3) is fixedly installed on the side wall of the driving groove (2), and two sections are symmetrically arranged on the first screw (9) and rotate oppositely, The screw thread that the pitch is the same, every section the external thread on overlap respectively and be equipped with screw thread piece (4), screw thread piece (4) are connected with elevating platform (11) through extrusion subassembly, extrusion subassembly includes extrusion piece (5) and last extrusion piece (6) down, extrusion piece (5) and screw thread piece (4) pass through bolt fixed connection down, one side that screw thread piece (4) were kept away from in extrusion piece (5) down is provided with the hypotenuse, the hypotenuse polishing treatment, also be provided with the hypotenuse of polishing treatment on last extrusion piece (6), and extrusion piece (5) and last extrusion piece (6) sliding connection down, last extrusion piece (6) pass through connecting rod fixed connection elevating platform (11), the symmetry is provided with reset assembly in driving groove (2), reset assembly includes buffing pad (7), buffing pad (7) are fixed in driving groove (2), and fixed mounting has first buffer spring (8) on buffing pad (7), one end of the first buffer spring (8) far away from the buffer seat (7) is fixedly connected with an upper extrusion block (6), the blackboard assembly comprises a push-pull blackboard (15) and a horizontal guide rail (16), the push-pull blackboard (15) is installed in the horizontal guide rail (16), the push-pull blackboard (15) is slidably connected with the horizontal guide rail (16), two ends of the horizontal guide rail (16) are respectively fixedly connected with the side wall of the limiting frame (10) through bolts, a moving seat is fixedly installed on the push-pull blackboard (15), a horizontal rack (17) is fixedly installed on one side of the moving seat, a first gear (18) is arranged on one side of the horizontal rack (17), the horizontal rack (17) is in meshing transmission with the first gear (18), an air pumping cylinder (19) is fixedly connected with the first gear (18), one end of the air pumping cylinder (19) far away from the first gear (18) is fixedly connected with a second screw (25), the dust removal assembly comprises a dust removal cavity (20), one end of the second screw rod (25) far away from the air pumping cylinder (19) extends into the dust removal cavity (20), a plurality of filter screens (21) are obliquely arranged in the dust removal cavity (20), one side of each filter screen (21) is rotatably connected with the side wall of the dust removal cavity (20), the other side of each filter screen (21) is hinged with a hinged seat (22), a first hinged block (23) is movably arranged in each hinged seat (22), the first hinged block (23) is fixedly arranged on the inner threaded sleeve (24), the inner threaded sleeve (24) is in threaded connection with the second screw rod (25), a plurality of dust pumping ports are formed in the side wall of the air pumping cylinder (19), the air pumping cylinder (19) is communicated with the dust removal cavity (20) through a guide pipe, two display screen assemblies are symmetrically arranged on the base (1), each display screen assembly comprises a display screen (14), each display screen (14) is connected with a height adjusting assembly, and the height adjusting assembly is arranged on the vertical plate (40), the vertical plate (40) is fixed on the base (1), the height adjusting assembly comprises an adjusting motor, the adjusting motor is fixedly installed on the vertical plate (40), the output end of the adjusting motor is fixedly connected with a cam (30), the side wall of the cam (30) is fixedly provided with a first push rod (31), the end part of the first push rod (31) is provided with a hinge groove (32), a second hinge block (33) is movably installed in the hinge groove (32), a third buffer spring (34) used for protecting the second hinge block (33) is further arranged in the hinge groove (32), the second hinge block (33) is hinged with a second push rod (35), one end, far away from the second hinge block (33), of the second push rod (35) is hinged with a second gear (36), the second gear (36) is installed on the vertical plate (40), the second gear (36) is rotatably connected with the vertical plate (40), one side of the second gear (36) is provided with a vertical rack (37), the second gear (36) and the vertical rack (37) are in meshing transmission, the vertical rack (37) is fixedly connected with a first lifting plate (29), a second lifting plate (38) is further arranged on the vertical plate (40), the second lifting plate (38) is in sliding connection with the vertical plate (40), one side of the second lifting plate (38) is provided with a fourth buffer spring (39) for protecting the lifting plate (38), the fourth buffer spring (39) is fixed on the vertical plate (40), one side of the second lifting plate (38) is fixedly connected with a limiting plate (13), the top of the limiting plate (13) is provided with a protective component (12) for protecting the display screen component, the protective component (12) comprises a buffer plate, the buffer plate is in sliding connection with the limiting plate (13), one side of the buffer plate is fixedly provided with a plurality of sliding sleeves (27), the sliding sleeves (27) are arranged on the positioning columns (26), the positioning columns (26) are fixedly connected with the limiting plate (13), a second buffer spring (28) is fixedly installed in the sliding sleeve (27), and one end of the second buffer spring (28) is fixedly connected with the positioning column (26).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110237394.2A CN112895769B (en) | 2021-03-04 | 2021-03-04 | Push-pull blackboard for English teaching |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110237394.2A CN112895769B (en) | 2021-03-04 | 2021-03-04 | Push-pull blackboard for English teaching |
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| CN112895769A CN112895769A (en) | 2021-06-04 |
| CN112895769B true CN112895769B (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110237394.2A Active CN112895769B (en) | 2021-03-04 | 2021-03-04 | Push-pull blackboard for English teaching |
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| CN113362681B (en) * | 2021-06-30 | 2022-11-11 | 焦作大学 | But intelligent digital media art design is with remote control platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20010099120A (en) * | 2001-09-01 | 2001-11-09 | 길홍준 | How to make endless black board |
| US20160137467A1 (en) * | 2013-08-09 | 2016-05-19 | Kyu Heung LEE | Automatic blackboard raising/lowering device |
| CN108597305A (en) * | 2018-04-09 | 2018-09-28 | 西安科技大学 | A kind of board for teaching mathematics with dust-absorbing function |
| CN209851898U (en) * | 2018-12-27 | 2019-12-27 | 臧传玺 | Blackboard for teaching |
| CN211699281U (en) * | 2020-03-19 | 2020-10-16 | 江苏微纳光膜科技有限公司 | Think political affairs teaching with demonstration appearance |
| CN212098156U (en) * | 2020-05-07 | 2020-12-08 | 广东科学技术职业学院 | Blackboard with lifting locking structure |
| CN211857775U (en) * | 2020-05-14 | 2020-11-03 | 山西大学 | Vocal music breathing method visual demonstration device |
| CN112246819A (en) * | 2020-09-29 | 2021-01-22 | 长春光华学院 | Interactive intelligent accounting teaching equipment |
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