CN115273568A - Angle-adjustable electronic blackboard frame - Google Patents
Angle-adjustable electronic blackboard frame Download PDFInfo
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- CN115273568A CN115273568A CN202210807285.4A CN202210807285A CN115273568A CN 115273568 A CN115273568 A CN 115273568A CN 202210807285 A CN202210807285 A CN 202210807285A CN 115273568 A CN115273568 A CN 115273568A
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- block
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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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- 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
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/04—Easels or stands for blackboards or the like
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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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- Business, Economics & Management (AREA)
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- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
本发明涉及一种电子黑板架，尤其涉及一种角度可调的电子黑板架。本发明提供一种可对反光现象进行角度调整，且书写方便轻松的角度可调的电子黑板架。一种角度可调的电子黑板架，包括有底座、连接管、升降杆、第一连接块、安装板、黑板、屏幕、调节机构、推拉机构等，底座顶部设有连接管，连接管内滑动式设有升降杆，升降杆顶部设有第一连接块，第一连接块上转动式设有安装板，安装板前侧设有能够使用粉笔在上面书写的黑板，黑板前壁中间设有屏幕，升降杆上侧设有调节机构，调节机构上设有推拉机构。本发明通过调节黑板的角度，在教师书写内容时更加方便，且在黑板因光线照射出现反光现象时，可及时调整。
The invention relates to an electronic blackboard rack, in particular to an electronic blackboard rack with an adjustable angle. The invention provides an angle-adjustable electronic blackboard stand that can adjust the angle of the reflection phenomenon, and is convenient and easy to write. An angle-adjustable electronic blackboard rack includes a base, a connecting pipe, a lifting rod, a first connecting block, a mounting plate, a blackboard, a screen, an adjustment mechanism, a push-pull mechanism, etc. There is a lifting rod, the top of the lifting rod is provided with a first connecting block, the first connecting block is rotatably provided with a mounting plate, the front side of the mounting plate is provided with a blackboard that can be written on with chalk, and a screen is arranged in the middle of the front wall of the blackboard, which can be lifted and lowered. An adjustment mechanism is arranged on the upper side of the rod, and a push-pull mechanism is arranged on the adjustment mechanism. By adjusting the angle of the blackboard, the invention is more convenient when the teacher writes the content, and can be adjusted in time when the blackboard is reflective due to light irradiation.
Description
Technical Field
The invention relates to an electronic blackboard frame, in particular to an electronic blackboard frame with an adjustable angle.
Background
The blackboard plays very big effect as an education appurtenance at the in-process of teaching, to a certain extent, is an indispensable appurtenance of teaching, along with the continuous development of scientific and technological, the production facility in education field is also advanced with the time, and the blackboard is popularized gradually, and the plane of writing repeatedly for available chalk is on both sides of more blackboard, and the centre is electronic screen, and is more convenient when mr professor course.
An adjustable blackboard of publication No. CN205033786U, which includes a supporting device and a blackboard device. The support device comprises two support legs, and the blackboard device comprises a support plate, a blackboard main body and two rotating structures. Blackboard main part set up adjustably in the supporting leg, in order to be used for adjusting the height of blackboard main part, the supporting plate axle connect in blackboard main part to form a supporting platform, be used for supporting stationery such as pen and blackboard eraser, each revolution mechanic set up respectively in the backup pad with blackboard main part's both sides, in order to be used for dragging the backup pad, thereby ensure the stability of adjustable blackboard when being used. Although the height of the adjustable blackboard of above-mentioned patent, the angle of unable regulation blackboard leads to the teacher to need raise the arm when writing the content on the blackboard, writes for a long time and causes the arm ache easily, and when teaching the course, like the blackboard reflection of light phenomenon appears, can't adjust, has certain limitation.
Therefore, an angle-adjustable electronic blackboard frame which can adjust the angle of the reflection phenomenon and is convenient and easy to write needs to be designed.
Disclosure of Invention
In order to overcome the defects that the angle of the existing blackboard can not be adjusted, the blackboard can not be adjusted when the reflection phenomenon occurs, the teaching of courses is influenced, and the existing blackboard is inconvenient to write, the technical problems of the invention are as follows: the angle-adjustable electronic blackboard frame can adjust the angle of the reflection phenomenon and is convenient and easy to write.
The technical implementation scheme of the invention is as follows: the utility model provides an angularly adjustable electron blackboard frame, which comprises a base, the connecting pipe, the lifter, first linkage block, the mounting panel, the blackboard, the screen, adjustment mechanism and push-and-pull mechanism, the base top is equipped with the connecting pipe, the slidingtype is equipped with the lifter in the connecting pipe, the lifter top is equipped with first linkage block, the last rotation type of first linkage block is equipped with the mounting panel, the mounting panel front side is equipped with the blackboard that can use the chalk to write on it, be equipped with the screen that can put in the video in the middle of the blackboard antetheca, the lifter upside is equipped with the adjustment mechanism who is used for fixed blackboard, the last push-and-pull mechanism that is equipped with of adjustment mechanism.
In a preferred embodiment of the invention, the adjusting mechanism comprises a support rod, limit blocks, sliding blocks, second connecting blocks, connecting rods, stop blocks and torsion springs, the support rod is arranged at the upper part of the lifting rod, the limit blocks are symmetrically arranged on the support rod in the left-right direction, the sliding blocks are arranged on the inner sides of the two limit blocks in a sliding manner, the connecting rods are arranged on the two sliding blocks in a rotating manner, the second connecting blocks are symmetrically arranged on the left-right direction of the rear side wall of the lower part of the blackboard, the two connecting rods are rotatably connected with the second connecting blocks on the same side, ten stop blocks are arranged in the two limit blocks in a rotating manner at intervals, the stop blocks are used for fixing the sliding blocks, the torsion springs for resetting are connected between the left side and the right side of each stop block and the limit blocks on the same side, and the two sliding blocks are in contact fit with the stop blocks on the same side.
In a preferred embodiment of the invention, the push-pull mechanism comprises extrusion blocks, guide rods, connecting plates, extension springs, connecting shafts and pulling blocks, wherein the extrusion blocks are arranged in two limiting blocks in a sliding manner and used for enabling all the stop blocks to rotate uniformly, the two extrusion blocks are in contact fit with the stop blocks on the same side, the guide rods are arranged on the front walls of the two limiting blocks, the connecting plates are arranged on the two guide rods in a sliding manner, the extension springs are arranged between the two connecting plates and the guide rods on the same side, the extrusion blocks on the left side and the right side are connected with the connecting plates on the same side, the connecting shafts are connected between the two connecting plates, and the pulling blocks are rotatably arranged in the middle of the connecting shafts.
In a preferred embodiment of the invention, the blackboard eraser further comprises a moving mechanism, the moving mechanism comprises a connecting frame, a third connecting block, universal wheels, a driving motor and a spiral rod, the connecting frame is rotatably arranged on the upper side of the connecting pipe, the middle part of the connecting frame is contacted with the base, three third connecting blocks are uniformly arranged on the outer side of the connecting frame along the circumferential direction, the universal wheels are rotatably arranged on the sides, far away from each other, of the three third connecting blocks, the universal wheels can enable the electronic blackboard frame with the adjustable angle to move more conveniently, the driving motor capable of automatically adjusting the height of the blackboard is arranged in the middle of the base, the spiral rod is arranged on an output shaft of the driving motor, and the spiral rod is connected with the interior of the lifting rod in a threaded connection mode.
In a preferred embodiment of the invention, the lifting device further comprises a more stable clamping mechanism for moving the lifting rod, the clamping mechanism comprises clamping blocks, a clamping spring, limiting rods, a rotary disc and a handle, the rotary disc is rotatably arranged on the upper side of the connecting pipe, the rotary disc is positioned above the connecting frame, three clamping blocks capable of playing a clamping role are uniformly and slidably arranged on the connecting frame along the circumferential direction, the clamping spring is connected between the three clamping blocks and the connecting frame, at least 10 convex blocks are uniformly arranged on the outer wall of the middle part of the connecting pipe and used for increasing friction force, the three clamping blocks are in contact fit with the connecting pipe, meanwhile, the three clamping blocks are in contact fit with the convex blocks, three arc-shaped grooves for guiding are formed in the rotary disc along the circumferential direction, the top parts of the three clamping blocks are provided with the limiting rods, the three limiting rods are all slidably connected with the arc-shaped grooves on the same side, and the handle is arranged on the left rear side of the rotary disc.
In a preferred embodiment of the invention, the chalk dust collecting device further comprises a collecting mechanism which can be more convenient when chalk dust is cleaned, the collecting mechanism comprises an electric push rod, a collecting frame, a scraper, a discharging hopper, a collecting box, clamping blocks and clamping springs, an electric slide rail is arranged at the bottom of the blackboard, the collecting frame is arranged at the bottom of a shell of the electric slide rail, the collecting frame is used for storing chalk dust falling on the blackboard, the scraper is arranged on the left side of the electric slide rail in a sliding mode and is connected with the inside of the collecting frame in a sliding mode, the discharging hopper is arranged on the right side of the bottom of the collecting frame, the clamping blocks are arranged on the front side and the rear side of the lower portion of the discharging hopper in a sliding mode, the collecting box is arranged between the two clamping blocks in a sliding mode, the clamping springs are connected between the front side and the rear side of the collecting box and the clamping blocks on the same side, and the collecting box is located below the discharging hopper and is in contact with the bottom of the collecting frame.
In a preferred embodiment of the invention, the chalk dust cleaning device further comprises a cleaner shaking mechanism capable of cleaning chalk dust, wherein the shaking mechanism comprises a pushing rod, a fourth connecting block, a reset spring, a rotating shaft, a gear, a rack, a cam, a fifth connecting block, a knocking rod and a return spring, the pushing rod is slidably arranged on the right side of the collecting frame, the fourth connecting block is arranged on the right side of the pushing rod, the reset spring is connected between the fourth connecting block and the collecting frame in a sleeved mode and sleeved on the pushing rod, the rotating shaft is arranged on the right side of the bottom of the collecting frame, the cam is rotatably arranged on the rotating shaft, the gear is rotatably arranged on the bottom of the rotating shaft, the top of the gear is connected with the bottom of the cam, the rack is arranged on the left side of the fourth connecting block and meshed with the gear, the fifth connecting block is arranged on the rear side wall of the right part of the collecting frame, the knocking rod is slidably arranged behind the fifth connecting block, the knocking rod can enable the collecting frame to vibrate, the knocking rod is connected with the return spring, and the cam is in contact fit with the knocking rod.
In a preferred embodiment of the present invention, the universal wheel is made of polypropylene.
Compared with the prior art, the invention has the following advantages: 1. according to the invention, by adjusting the angle of the blackboard, a teacher can write contents more conveniently, and when the blackboard is reflected due to light irradiation, the blackboard can be adjusted in time;
2 the connecting rod can drive the sliding block to move towards the front side by rotating the blackboard upwards, and the sliding block cannot easily move towards the rear side under the action of the stop block, so that the blackboard cannot deviate due to external factors after the blackboard is adjusted, and is more stable;
3. a teacher pulls the pulling block to the front side, so that the extrusion block can move the extrusion stop block to the front side, the stop block does not block the sliding block any more, the angle of the blackboard can be increased, the stop blocks do not need to be manually rotated one by one, and the blackboard is more labor-saving and convenient;
4. the driving motor drives the screw rod to rotate, so that the blackboard can be driven to move upwards, the blackboard can be adjusted to a proper height, and meanwhile, the universal wheels can facilitate the movement of the blackboard without carrying;
5. according to the invention, the connecting pipe is clamped by the clamping block, when the driving motor runs, the lifting rod moves upwards more stably without manual force, the clamping block can not clamp the connecting pipe any more under the action of the arc-shaped groove, and the universal wheel does not need to rotate when the orientation of the blackboard is adjusted, so that the noise can be effectively reduced;
6. the collecting box can collect chalk dust falling from writing handwriting on the blackboard, the electric sliding rail can enable the scraping plate to scrape the chalk dust into the collecting box for collection, and the collecting box can be cleaned after being filled with the chalk dust, so that more labor is saved;
7. when the scraper plate is in contact with the push rod, the cam is intermittently pushed to knock the rod, the knock rod knocks the fifth connecting block, the collecting frame vibrates, chalk dust can fully fall into the collecting box, and cleaning is cleaner.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
FIG. 2 is a schematic view of a first partial body structure according to the present invention.
Fig. 3 is a schematic diagram of a second partial body structure according to the present invention.
Fig. 4 is a schematic perspective view of the adjusting mechanism of the present invention.
Fig. 5 is a schematic perspective view of a part of the adjusting mechanism of the present invention.
Fig. 6 is a schematic perspective view of a first push-pull mechanism of the present invention.
Fig. 7 is an enlarged view of the invention at a.
Fig. 8 is a schematic perspective view of a second push-pull mechanism of the present invention.
Fig. 9 is a schematic perspective view of the moving mechanism of the present invention.
Fig. 10 is a partial cross-sectional view of the displacement mechanism of the present invention.
Fig. 11 is a schematic perspective view of the clamping mechanism of the present invention.
Fig. 12 is a cross-sectional view of the clamping mechanism of the present invention.
Fig. 13 is a schematic perspective view of the collecting mechanism of the present invention.
Fig. 14 is a cross-sectional view of the collection mechanism of the present invention.
Fig. 15 is a schematic perspective view of a shaking mechanism of the present invention.
Fig. 16 is an enlarged view of the invention at B.
Fig. 17 is a schematic perspective view of a part of the shaking mechanism of the present invention.
The parts are labeled as follows: 1. a base, 2, a connecting pipe, 3, a lifting rod, 4, a first connecting block, 5, a mounting plate, 6, a blackboard, 61, a screen, 7, an adjusting mechanism, 70, a supporting rod, 71, a limiting block, 72, a sliding block, 73, a second connecting block, 74, a connecting rod, 75, a stop block, 76, a torsion spring, 8, a push-pull mechanism, 80, an extrusion block, 81, a guide rod, 82, a connecting plate, 83, a tension spring, 84, a connecting shaft, 85, a pulling block, 9, a moving mechanism, 90, a connecting frame, 91, a third connecting block, 92, a universal wheel, 93, a driving motor, 94 and a spiral rod, 10, a clamping mechanism 100, a clamping block 101, a clamping spring 102, a limiting rod 103, a rotary disc 104, a handle 105, an arc-shaped groove 11, a collecting mechanism 110, an electric sliding rail 111, a collecting frame 112, a scraper blade 113, a discharging hopper 114, a collecting box 115, a clamping block 116, a clamping spring 12, a shaking mechanism 120, a pushing rod 121, a fourth connecting block 122, a return spring 123, a rotating shaft 124, a gear 125, a rack 126, a cam 127, a fifth connecting block 128, a beating rod 129 and a return spring.
Detailed Description
It is to be noted that, in the different described embodiments, identical components are provided with the same reference numerals or the same component names, wherein the disclosure contained throughout the description can be transferred in a meaningful manner to identical components having the same reference numerals or the same component names. The positional references selected in the description, such as upper, lower, lateral, etc., refer also to the directly described and illustrated figures and are to be read into the new position in the sense of a change in position.
Example 1
The utility model provides an angularly adjustable electron blackboard frame, show in fig. 1-3, including base 1, connecting pipe 2, lifter 3, first connecting block 4, mounting panel 5, blackboard 6, screen 61, adjustment mechanism 7 and push-and-pull mechanism 8, 1 top of base is connected with connecting pipe 2 through bolted connection's mode, 2 internal sliding type of connecting pipe are equipped with lifter 3, 3 tops of lifter are equipped with first connecting block 4, the commentaries on classics formula is equipped with mounting panel 5 on first connecting block 4, 5 front sides of mounting panel are equipped with blackboard 6 that are used for writing teaching content, be equipped with screen 61 in the middle of the 6 antetheca of blackboard, 3 upsides of lifter are equipped with the mechanism 7 that is used for adjusting 6 angles of blackboard, be equipped with push-and-pull mechanism 8 on adjustment mechanism 7.
As shown in fig. 2, fig. 4 and fig. 5, the adjusting mechanism 7 includes a support rod 70, a limiting block 71, a slider 72, a second connecting block 73, a connecting rod 74, a stopper 75 and a torsion spring 76, the support rod 70 is welded on the upper portion of the lifting rod 3, the limiting block 71 is connected to the support rod 70 in a bolt connection manner in a bilateral symmetry manner, sliders 72 are arranged in two limiting blocks 71 in a sliding manner in an equal manner on the rear side, connecting rods 74 are arranged on two sliders 72 in an equal rotation manner, the second connecting block 73 is arranged in a bilateral symmetry manner on the rear side wall of the lower portion of the blackboard 6 in a bilateral symmetry manner, the two connecting rods 74 are connected to the second connecting block 73 on the same side in a rotation manner, ten stoppers 75 for fixing the slider 72 are arranged in two limiting blocks 71 in an equal rotation manner at intervals, a torsion spring 76 for resetting is connected between the left side and the right side of each stopper 75 and the stopper 71 on the same side, and the two sliders 72 are in contact with the stopper 75 on the same side.
As shown in fig. 1, 2, 6, 7 and 8, the push-pull mechanism 8 includes an extruding block 80, a guide rod 81, a connecting plate 82, a tension spring 83, a connecting shaft 84 and a pulling block 85, the extruding blocks 80 for making the stoppers 75 all rotate are slidably disposed in the two stoppers 71, the two extruding blocks 80 are in contact fit with the stoppers 75 on the same side, the guide rods 81 for guiding are welded on the front walls of the two stoppers 71, the connecting plate 82 is slidably disposed on the two guide rods 81, the tension spring 83 is disposed between the two connecting plates 82 and the guide rods 81 on the same side, the extruding blocks 80 on the left and right sides are connected with the connecting plates 82 on the same side, the connecting shaft 84 is connected between the two connecting plates 82, and the pulling block 85 convenient for teachers to operate is rotatably disposed in the middle of the connecting shaft 84.
When a teacher needs to use the device, the device can be placed at a designated position in a classroom, when the student is on class, the teacher can write teaching contents on the blackboard 6 by using chalk, the computer can be connected with the screen 61, the student can check some learning contents and video explanation through the screen 61, the teaching of courses is clearer, when the teacher needs to adjust the angle of the blackboard 6, the teacher can directly rotate the blackboard 6 upwards to drive the screen 61 and the mounting plate 5 to rotate, the blackboard 6 rotates to drive the second connecting block 73 and the connecting rod 74 to rotate, the connecting rod 74 drives the sliding block 72 to move towards the front side, so that the sliding block 72 pushes the stop block 75 to rotate, the torsion spring 76 deforms, when the sliding block 72 is not in contact with the stop block 75 any more, the stop block 75 reversely rotates and resets under the resetting action of the torsion spring 76, ten stop blocks 75 are arranged, the sliding block 72 moves towards the front side to cross some stop blocks 75, the sliding block 72 can not move to the back side at will, the block 75 can block the sliding block 72, the rotating angle of the blackboard 6 determines the moving distance of the sliding block 72 to the front side, a teacher can rotate the blackboard 6 and the screen 61 to a proper angle, the angle of the blackboard 6 is adjusted to be low, the teacher can conveniently write teaching contents, when the teacher needs to adjust the angle of the blackboard 6 to be high, the teacher can pull the pulling block 85 to the front side, the pulling block 85 can rotate, the teacher can pull the pulling block 85 more conveniently, the pulling block 85 moves to the front side to drive the connecting shaft 84 and the connecting plate 82 to move to the front side, the extension spring 83 is compressed, the connecting plate 82 drives the extrusion block 80 to move to the front side, the extrusion block 80 can drive all the blocks 75 to rotate, the torsion spring 76 deforms, the block 75 can not block the sliding block 72 any longer, and the teacher can rotate the blackboard 6 downwards to drive the screen 61 and the mounting plate 5 to rotate in the opposite direction, the blackboard 6 further drives the second connecting block 73 to rotate reversely, the second connecting block 73 drives the connecting rod 74 to rotate reversely, so that the connecting rod 74 pushes the slider 72 to move backwards, the stopper 75 does not block the slider 72 any more, the slider 72 can smoothly move backwards, after the blackboard 6 rotates downwards and is adjusted to a proper angle, a teacher can release the pulling block 85, so that the connecting plate 82 drives the extruding block 80 and the connecting shaft 84 to move backwards and reset under the resetting action of the stretching spring 83, the extruding block 80 does not press the stopper 75 any more after moving backwards, the stopper 75 rotates reversely and resets under the resetting action of the torsion spring 76, and thus, when the teacher adjusts the angle of the blackboard 6 to be high, the teacher does not need to manually rotate the stoppers 75 one by one, so that the teacher can save labor and conveniently adjust the angle of the blackboard 6 in time, and when light is irradiated on the blackboard 6 to reflect light.
Example 2
On the basis of embodiment 1, as shown in fig. 1, 2, 9 and 10, the blackboard eraser further comprises a moving mechanism 9, wherein the moving mechanism 9 comprises a connecting frame 90, a third connecting block 91, a universal wheel 92, a driving motor 93 and a spiral rod 94, the connecting frame 90 is rotatably arranged on the upper side of the connecting pipe 2, the middle part of the connecting frame 90 is in contact with the base 1, three third connecting blocks 91 are uniformly arranged on the outer side of the connecting frame 90 along the circumferential direction, the universal wheel 92 for facilitating the movement of the blackboard eraser is rotatably arranged on one side, away from each other, of the three third connecting blocks 91, the universal wheel 92 is made of polypropylene, the material has the advantages of wear resistance, hydrochloric acid resistance and long service life, the driving motor 93 is arranged in the middle of the base 1, the spiral rod 94 for adjusting the height of the blackboard 6 is arranged on an output shaft of the driving motor 93, and the spiral rod 94 is connected with the inside of the lifting rod 3 in a threaded connection manner.
When the teacher needs to use this device, the teacher promotes this device, and then drive universal wheel 92 and rotate, universal wheel 92 rotates and makes this device remove more conveniently, when the teacher uses this device, the teacher still can adjust the height of blackboard 6, be convenient for the student to look up the writing on blackboard 6, the teacher can start driving motor 93 forward operation, make driving motor 93 output shaft rotate and drive hob 94 and rotate, and then drive 3 rebound of lifter, connecting pipe 2 can play spacing effect to lifter 3, prevent 3 rotations of lifter, make lifter 3 can only be along 2 rebound of connecting pipe, when teacher driving motor 93 operates, the teacher still can step on base 1 with the foot, can make more stable that lifter 3 removed, lifter 3 rebound will drive first connecting block 4 and mounting panel 5 rebound, make mounting panel 5 drive screen 61 and blackboard 6 rebound, alright with 6 rebound to suitable height, after 6 height adjustment finishes, the teacher closes driving motor 93 can, the coprology, if the teacher needs to adjust down the height of blackboard 6, so that the teacher can start driving motor 93 and drive blackboard 6 to drive more convenient for the backward movement, make blackboard 3 do not drive the backward movement of blackboard 6 and drive mounting panel 3 and drive the hob 3 and drive the backward movement 3, make it to drive the backward movement down and also can drive the big backward movement of connecting pipe 3, make the driving motor 93 to drive the backward movement and drive the mounting panel 3, the backward movement, make the mounting panel 3 to take up and rotate more convenient for the backward movement, the screen to drive the backward movement, the screen 3, the backward movement, the screen 3 to drive the backward movement of this device to drive the backward movement, the screen 3.
As shown in fig. 1, 2, 11 and 12, the lifting device further includes a clamping mechanism 10, the clamping mechanism 10 includes clamping blocks 100, clamping springs 101, limiting rods 102, a rotary table 103 and a handle 104, the rotary table 103 is rotatably disposed on the upper side of the connecting pipe 2, the rotary table 103 is disposed above the connecting frame 90, three clamping blocks 100 for stabilizing the movement of the lifting rod 3 are uniformly arranged on the connecting frame 90 in a sliding manner along the circumferential direction, the clamping springs 101 are connected between the three clamping blocks 100 and the connecting frame 90, at least 10 protruding blocks are uniformly arranged on the outer wall of the middle portion of the connecting pipe 2, the three clamping blocks 100 are in contact fit with the connecting pipe 2, meanwhile, the three clamping blocks 100 are in contact fit with the protruding blocks, three arc-shaped grooves 105 are circumferentially arranged on the rotary table 103, the limiting rods 102 for limiting and guiding are disposed on the tops of the three clamping blocks 100, the three limiting rods 102 are all in sliding connection with the arc-shaped grooves 105 on the same side, and the handle 104 is welded to the left rear side of the rotary table 103.
According to the invention, the connecting pipe 2 can be fixed by friction clamping between the clamping block 100 and the convex block on the connecting pipe 2, when the driving motor 93 runs, manual force is not needed to be applied to the base 1, the lifting rod 3 slides more stably in the connecting pipe 2, when a teacher needs to rotate and adjust the blackboard 6 to a proper direction, the teacher does not need to move the device integrally, the teacher can rotate the handle 104 to drive the turntable 103 to rotate, the three limiting rods 102 can be driven to move in a direction away from each other through the arc-shaped groove 105 on the turntable 103, the limiting rods 102 move along the arc-shaped groove 105, the limiting rods 102 further drive the clamping block 100 to move outwards, the clamping spring 101 is compressed, after the clamping block 100 does not clamp the connecting pipe 2, the teacher can rotate the blackboard 6 to drive the mechanism to rotate integrally, the lifting rod 3 and the connecting pipe 2 are driven to rotate, the connecting pipe 2 rotates to drive the base 1 to rotate, so that the device can drive the clamping mechanism 10 and the moving mechanism 9 integrally, all other components rotate, the driving motor 93 and the spiral rod 94 in the base 1 and the universal rod 104 can also rotate, after the direction of the lifting rod 6 is adjusted to a proper angle, the lifting rod 6 is adjusted, the universal wheel 104 can be connected with the universal wheel 102, the universal wheel 102 can be prevented from moving along the universal wheel 102, and the universal wheel 102 from moving back to move.
As shown in fig. 1, fig. 2, fig. 13 and fig. 14, the chalk dust collecting device further includes a collecting mechanism 11, the collecting mechanism 11 includes an electric push rod, a collecting frame 111, a scraper 112, a discharging hopper 113, a collecting box 114, a clamping block 115 and a clamping spring 116, an electric slide rail 110 is disposed at the bottom of the blackboard 6, the collecting frame 111 for collecting chalk dust is disposed at the bottom of a housing of the electric slide rail 110, a scraper 112 for scraping out chalk dust is slidably disposed at the left side of the electric slide rail 110, the scraper 112 is connected with a moving member of the electric slide rail 110, the scraper 112 is slidably connected with the inside of the collecting frame 111, the discharging hopper 113 is welded at the right side of the bottom of the collecting frame 111, the clamping blocks 115 capable of fixing are slidably disposed at front and rear sides of the lower portion of the discharging hopper 113, the collecting box 114 for collecting chalk dust for a long time is slidably disposed between the two clamping blocks 115, the clamping springs 116 are connected between the front and rear sides of the collecting box 114 and the clamping blocks 115 at the same side, and the collecting box 114 is located below the discharging hopper 113 and contacts with the bottom of the collecting frame 111.
When a teacher writes on the blackboard 6, some chalk dust will fall off, part of the chalk dust will fall in the collection frame 111, and when the teacher uses a wiping cloth to wipe off writing traces, the chalk dust will also fall in the collection frame 111, when the chalk dust in the collection frame 111 is stored more, the teacher can start the electric slide rail 110 to work, so that the electric slide rail 110 drives the scraper 112 to move towards the right, the scraper 112 can scrape the chalk dust in the collection frame 111 towards the right, so that the chalk dust can fall into the collection box 114 through the lower hopper 113, when the scraper 112 moves towards the right to a limit, the electric slide rail 110 will run reversely to drive the scraper 112 to clamp and reset towards the left, the electric slide rail 110 stops working automatically after the scraper 112 has reset, so that the electric slide rail 110 can drive the scraper 112 to move back and forth automatically, and forth without manual cleaning, when the chalk dust in the collection box 114 is filled with enough chalk dust, the teacher can pull the clamping block 115 towards the outside, the clamping spring 116 is pulled, and the clamping block 115 is pulled outwards, and the collection box 113 is not aligned with the collection box 113, so that the collection box 114 can be pulled back and the collection box 114 can be pulled, so that the chalk dust can be removed, and the collection box 114 can be removed, and the collection box can be removed, so that the collection box 114 can be removed, and the chalk dust can be returned, and the collection box 113 can be removed, and then the collection box 114 can be removed, and the collection box 114 can be returned. The chalk dust in the collecting frame 111 can be cleaned more conveniently under the action of the collecting box 114, and the chalk dust can be cleaned for a plurality of times only by waiting for the full filling of the collecting box 114 without being cleaned for a plurality of times.
As shown in fig. 1, 2, 15, 16 and 17, the shaking apparatus 12 further includes a shaking mechanism 12, the shaking mechanism 12 includes a push rod 120, a fourth connecting block 121, a return spring 122, a rotating shaft 123, a gear 124, a rack 125, a cam 126, a fifth connecting block 127, a beating rod 128 and a return spring 129, the push rod 120 is slidably disposed on the right side of the collecting frame 111, the fourth connecting block 121 is disposed on the right side of the push rod 120, the return spring 122 is connected between the fourth connecting block 121 and the collecting frame 111, the return spring 122 is sleeved on the push rod 120, the rotating shaft 123 is welded on the right side of the bottom of the collecting frame 111, the cam 126 is rotatably disposed on the rotating shaft 123, the gear 124 is rotatably disposed on the bottom of the rotating shaft 123, the top of the gear 124 is connected with the bottom of the cam 126, the rack 125 is welded on the left side of the fourth connecting block 121, the rack 125 is engaged with the gear 124, the fifth connecting block 127 is disposed on the rear side wall of the right portion of the collecting frame 111, the fifth connecting block 127 is disposed on the rear side wall of the fifth connecting block 128, the beating rod 128 for vibrating the collecting frame 111, the beating rod 128 is rotatably disposed on the rear side, the side of the beating rod 128, the fifth connecting block is connected with the beating rod 129 for buffering, and the return spring 129 for the beating rod 128 is connected with the beating rod 128 for buffering, and the cam 126.
When a teacher needs to clean chalk dust in the collection frame 111, the electric slide rail 110 drives the scraping plate 112 to move to the right side, when the scraping plate 112 contacts with the pushing rod 120, the pushing rod 120 and the fourth connecting block 121 are driven to move to the right side, the return spring 122 is stretched accordingly, the fourth connecting block 121 moves to the right side and simultaneously drives the rack 125 to move to the right side, the rack 125 drives the gear 124 to rotate with the cam 126, the bulge of the cam 126 contacts with the knocking rod 128, the knocking rod 128 further drives the knocking rod 128 to move to the rear side, the return spring 129 is compressed, when the bulge of the cam 126 does not contact with the knocking rod 128 any more, the knocking rod 128 moves forwards to knock the fifth connecting block 127 under the action of the return spring 129, the vibration force of the fifth connecting block 127 is transmitted to the collection frame 111, the knocking rod 128 strikes the collection frame 111 through the fifth connecting block 127, the chalk dust in the collection frame 111 can fall into the collection box 114 better, the intermittent knocking rod 128 rotates to drive the knocking rod 128 to drop, the collection frame 125 again, the collection frame 125 returns the collection frame 125 to the collection frame 125, and drives the rack 126 to the collection frame 125 to move again, and the collection rod 125, and returns the collection rod 126 to the collection frame 125, when the collection rod 126 moves to the collection frame 125, and the collection frame 125, the collection rod 122 returns to the collection frame 120.
While the disclosure has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that various other embodiments can be devised which do not depart from the scope of the invention as disclosed herein. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210807285.4A CN115273568A (en) | 2022-07-11 | 2022-07-11 | Angle-adjustable electronic blackboard frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210807285.4A CN115273568A (en) | 2022-07-11 | 2022-07-11 | Angle-adjustable electronic blackboard frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115273568A true CN115273568A (en) | 2022-11-01 |
Family
ID=83765832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210807285.4A Withdrawn CN115273568A (en) | 2022-07-11 | 2022-07-11 | Angle-adjustable electronic blackboard frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115273568A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119747347A (en) * | 2025-03-04 | 2025-04-04 | 泉州幼儿师范高等专科学校 | A cleaning device for chalk dust in teaching environment |
-
2022
- 2022-07-11 CN CN202210807285.4A patent/CN115273568A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119747347A (en) * | 2025-03-04 | 2025-04-04 | 泉州幼儿师范高等专科学校 | A cleaning device for chalk dust in teaching environment |
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Application publication date: 20221101 |