CN112123975A - Electrician electronic class teaching device - Google Patents
Electrician electronic class teaching device Download PDFInfo
- Publication number
- CN112123975A CN112123975A CN202011125382.2A CN202011125382A CN112123975A CN 112123975 A CN112123975 A CN 112123975A CN 202011125382 A CN202011125382 A CN 202011125382A CN 112123975 A CN112123975 A CN 112123975A
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- CN
- China
- Prior art keywords
- side wall
- fixedly connected
- outer side
- rod
- roller shaft
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Classifications
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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
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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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- 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
- B43L21/04—Wiper holders
Abstract
The invention discloses an electrician and electronic teaching device, which comprises a box body, wherein the outer side wall of the box body is provided with a mounting groove, the inner side wall of the mounting groove is fixedly provided with a blackboard, the interior of the box body is provided with a fixed cavity, the inner side wall of the fixed cavity is fixedly connected with a motor, the outer side wall of an output shaft of the motor is fixedly connected with a first bevel gear, the tail end of the output shaft of the motor is fixedly connected with a threaded rod, the tail end of the threaded rod is rotatably connected with the inner side wall of the fixed cavity, the interior of the box body is provided with an installation cavity, the inner side wall of the installation cavity is fixedly connected with a water tank, a first transmission wheel drives a second transmission wheel to rotate through a belt, the second transmission wheel drives a fixed rod to rotate, the fixed rod drives a fan to rotate, the fan rotates to generate, avoid the dust to raise, enter into lecturer's lung through breathing, the lecturer causes the injury.
Description
Technical Field
The invention relates to the technical field of teaching, in particular to an electrical and electronic teaching device.
Background
The electrician and electronics industry as the industry started from the second industrial revolution has been greatly developed, the electrician and electronics products are seen everywhere in daily life and become an indispensable part in our life, most colleges and universities are now culturing basic knowledge with electronic technology and electrical engineering, and can be engaged in the maintenance, manufacture and application of various electronic devices, and the composite technical talents of power production, electrical manufacture and maintenance, so that students can have clearer understanding of electrician types and circuit diagrams through the explanation of teachers in classrooms
The most traditional teaching mode is realized when blackboard writing is carried out on a blackboard by chalks, but the mode of being capable of drawing the distance between students and teachers most can be realized, the students are guided to continuously write on the blackboard, the students are more interested in the major of electricians, but the traditional blackboard writing needs the teachers to continuously clean the blackboard, the blackboard writing is more blurred due to the fact that chalk dust is attached to the blackboard after the blackboard is cleaned by the blackboard eraser, the students in the distance cannot watch the blackboard clearly enough, and the chalk dust is easy to fly away in the cleaning process, so that the chalk dust enters the lung of the teachers, the influence makes the body, and the electronic type teaching device for electricians is needed.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an electrical and electronic teaching device.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electrician and electronics teaching device comprises a box body, wherein a mounting groove is formed in the outer side wall of the box body, a blackboard is fixedly mounted on the inner side wall of the mounting groove, a fixed cavity is formed in the box body, a motor is fixedly connected to the inner side wall of the fixed cavity, a first bevel gear is fixedly connected to the outer side wall of an output shaft of the motor, a threaded rod is fixedly connected to the tail end of the output shaft of the motor, the tail end of the threaded rod is rotatably connected with the inner side wall of the fixed cavity, an installation cavity is formed in the box body, a water tank is fixedly connected to the inner side wall of the installation cavity, a drainage mechanism is rotatably connected to the inner side wall of the water tank, a transmission rod is fixedly connected to the tail end of the drainage mechanism, a second bevel gear is fixedly connected to the outer side wall of the, the water outlet pipe penetrates through the box body and is fixedly connected with the inner side wall of the fixed cavity, a plurality of water drainage holes are formed in the outer side wall of the water outlet pipe, a plurality of water drainage grooves are formed in the outer side wall of the box body, limiting grooves are formed in the inner side wall of each mounting groove, locking blocks are slidably connected to the inner side wall of each limiting groove, locking grooves are formed in the outer side wall of each locking block, a cleaning box is fixedly connected to the outer side wall of each locking block, a fixed frame is fixedly connected to the outer side wall of the cleaning box, a fixed block is fixedly connected to the outer side wall of each cleaning box, sliding grooves are formed in the outer side wall of each mounting groove and communicated with the fixed cavity, the fixed blocks penetrate through the sliding grooves and are rotatably connected with threaded rods, the fixed frames penetrate through the sliding grooves, linkage rods are rotatably connected to, the gear is rotationally connected with the threaded rod, the linkage rod sequentially penetrates through the outer side wall of the fixed frame and the outer side wall of the cleaning box, the outer side wall of the cleaning box is provided with a cleaning groove, the tail end of the linkage rod is fixedly connected with a cleaning mechanism, the cleaning mechanism is tightly propped against the outer side wall of the blackboard, a through hole is arranged on the outer side wall of the cleaning box, the through hole is communicated with the locking groove, a plurality of launders are arranged on the inner side wall of the limiting groove, the launder is communicated with the installation cavity, the outer side wall of the transmission rod is fixedly connected with a first transmission wheel, the inner side wall of the mounting cavity is rotatably connected with a dust absorption mechanism, the outer side wall of the box body is rotatably connected with a plywood, the lateral wall fixedly connected with inlet tube of water tank, fixedly connected with drain pipe on the lateral wall of box, the drain pipe is linked together with fixed chamber.
Preferably, the drainage mechanism comprises a water flow conveying rod rotatably connected to the inner side wall of the water tank, the tail end of the water flow conveying rod penetrates through the outer side wall of the water tank, and the tail end of the water flow conveying rod is fixedly connected with the transmission rod.
Preferably, wiper mechanism includes the drive roll axle of fixed connection on the trace is terminal, the drive roll axle runs through the clearance groove, it is connected with first pressure roller axle to rotate on the inside wall of clearance case, it is connected with second pressure roller axle to rotate on the inside wall of clearance case, be connected through track transmission between drive roll axle and the second pressure roller axle, it is tight to offset with the blackboard around the track of establishing at the drive roll axle lateral wall.
Preferably, dust absorption mechanism is including rotating the fan of connection on the installation cavity inside wall, the terminal fixedly connected with dead lever of fan, the end of dead lever is connected with the interior top rotation of installation cavity, fixedly connected with second transfer gear on the lateral wall of dead lever, be connected through belt transmission between second transfer gear and the first transfer gear.
Preferably, the inner diameter of the fixing block is larger than the outer diameter of the threaded rod, and the inner thread of the fixing block is matched with the outer thread of the threaded rod.
Preferably, the drain hole arranged on the outer side wall of the water outlet pipe is communicated with the drain tank.
Preferably, the material of the water flow conveying rod is austenitic stainless steel.
Preferably, the first pressure roller shaft and the second pressure roller shaft are abutted, and rubber layers are arranged on the surfaces of the first pressure roller shaft and the second pressure roller shaft.
Compared with the prior art, the invention has the beneficial effects that:
1. by starting the motor, the motor starts to rotate, the motor rotates to drive the first bevel gear to start rotating, the first bevel gear drives the second bevel gear to start rotating, the second bevel gear drives the transmission rod to start rotating the transmission rod to drive the water flow conveying rod to start rotating, the water flow conveying rod rotates to convey water flow into the water outlet pipe through the water inlet pipe, then the water flow passes through a drain hole arranged on the outer side wall of the water outlet pipe and then is drained to the blackboard through a drain groove, the transmission rod rotates to drive the first transmission wheel to start rotating, the first transmission wheel drives the second transmission wheel to start rotating through a belt, the second transmission wheel drives the fixed rod to start rotating, the fixed rod drives the fan to start rotating, the fan rotates to enable the upper part of the fan to generate negative, the chalk dust on the surface of the blackboard is sucked through the flowing water groove, so that the dust is prevented from being raised, and the chalk dust enters the lung of the lecturer through breathing to cause injury to the lecturer.
2. The output shaft of the motor drives the threaded rod to start rotating, the threaded rod rotates to enable the fixed block to move forwards, the threaded rod rotates to drive the gear to start rotating, the gear starts rotating to drive the linkage rod to start rotating, the linkage rod rotates to enable the driving roller shaft to start rotating, the driving roller shaft rotates to enable the track arranged on the outer side wall of the driving roller shaft to start rotating, the cleaning box is driven by the fixed block to move rightwards, the track cleans the surface of the blackboard, the track is arranged between the driving roller shaft and the second pressure roller shaft in a winding mode and is tightly abutted against the first pressure roller shaft, in the process that the track cleans the blackboard, absorbed moisture is squeezed out through extrusion force between the second pressure roller shaft and the first pressure roller shaft, the situation that the blackboard cannot be dried at short time due to excessive moisture on the surface of the track is avoided, and therefore blackboard writing cannot be carried out, moisture that produces through the extrusion between second pressure roller and the first pressure roller drips the spacing inslot through the through hole of seting up in clearance bottom of the case portion and the locking groove of seting up on the locking piece lateral wall, then through beginning inside the tye drippage installation cavity on the spacing inslot lateral wall, the inside of rethread drain pipe discharge box, realized the wringing effect to the track, also realized the discharge to waste water simultaneously, avoid waste water to pile up for a long time smellily, influence the lecture quality.
Drawings
FIG. 1 is a perspective view of an electrical and electronic teaching device according to the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view of a portion A of the present invention;
FIG. 4 is an enlarged view of a portion B of the present invention;
FIG. 5 is an enlarged view of a portion C of the present invention;
FIG. 6 is a view showing the connection between the first pressure roller shaft and the second pressure roller shaft according to the present invention;
FIG. 7 is a top view of the cleaning mechanism of the present invention;
FIG. 8 is a perspective view of the cleaning mechanism of the present invention;
FIG. 9 is a view of the threaded rod and gear of the present invention in connection;
fig. 10 is a top view of the present invention.
In the figure: the water tank comprises a tank body 1, a mounting groove 2, a fixed cavity 3, a motor 4, a threaded rod 5, a water outlet pipe 6, a transmission rod 7, a water tank 8, a water flow conveying rod 9, a first transmission wheel 10, a second transmission wheel 11, a fixed rod 12, a fan 13, a blackboard 14, a water inlet pipe 15, a water outlet pipe 16, a cleaning box 17, a driving roll shaft 18, a water discharge groove 19, a fixed frame 20, a gear 21, a linkage rod 22, a fixed block 23, a limiting groove 24, a locking groove 25, a locking block 26, a first bevel gear 27, a second bevel gear 28, an open-close plate 29, a cleaning groove 30, a first pressure roll shaft 31, a second pressure roll shaft 32, a mounting cavity 33 and a.
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.
Referring to fig. 1-10, an electrical and electronic teaching device comprises a box body 1, wherein an installation groove 2 is formed on the outer side wall of the box body 1, a blackboard 14 is fixedly installed on the inner side wall of the installation groove 2, a fixed cavity 3 is formed inside the box body 1, a motor 4 is fixedly connected to the inner side wall of the fixed cavity 3, a first bevel gear 27 is fixedly connected to the outer side wall of an output shaft of the motor 4, a threaded rod 5 is fixedly connected to the tail end of the output shaft of the motor 4, the tail end of the threaded rod 5 is rotatably connected with the inner side wall of the fixed cavity 3, an installation cavity 33 is formed inside the box body 1, and a water;
the inner side wall of the water tank 8 is rotatably connected with a drainage mechanism, the tail end of the drainage mechanism is fixedly connected with a transmission rod 7, the drainage mechanism comprises a water flow conveying rod 9 which is rotatably connected on the inner side wall of the water tank 8, the water flow conveying rod 9 is made of austenitic stainless steel, the austenitic stainless steel is not easy to rust after being used for a long time and can ensure the stable structure of the water flow conveying rod, the tail end of the water flow conveying rod 9 penetrates through the outer side wall of the water tank 8, the tail end of the water flow conveying rod 9 is fixedly connected with the transmission rod 7, the outer side wall of the transmission rod 7 is fixedly connected with a second bevel gear 28, the second bevel gear 28 is meshed with a first bevel gear 27, the outer side wall of the water tank 8 is fixedly connected with a water outlet pipe 6, the water outlet pipe 6 penetrates through the tank body 1 and is fixedly connected, a drain hole arranged on the outer side wall of the water outlet pipe 6 is communicated with a drain groove 19, which is convenient for draining water onto the blackboard 14, a limit groove 24 is arranged on the inner side wall of the mounting groove 2, a locking block 26 is connected on the inner side wall of the limit groove 24 in a sliding way, a locking groove 25 is arranged on the outer side wall of the locking block 26, a cleaning box 17 is fixedly connected on the outer side wall of the locking block 26, a fixed frame 20 is fixedly connected on the outer side wall of the cleaning box 17, a fixed block 23 is fixedly connected on the outer side wall of the cleaning box 17, a sliding groove is arranged on the outer side wall of the mounting groove 2 and is communicated with the fixed cavity 3, the fixed block 23 penetrates through the sliding groove and is rotatably connected with the threaded rod 5, the inner diameter of the fixed block 23 is larger than the outer diameter of the threaded rod 5, the inner thread of, the outer side wall of the linkage rod 22 is fixedly connected with a gear 21, the gear 21 is rotatably connected with the threaded rod 5, the linkage rod 22 sequentially penetrates through the outer side wall of the fixing frame 20 and the outer side wall of the cleaning box 17, and the outer side wall of the cleaning box 17 is provided with a cleaning groove 30;
the tail end of the linkage rod 22 is fixedly connected with a cleaning mechanism, the cleaning mechanism is abutted against the outer side wall of the blackboard 14, the cleaning mechanism comprises a driving roller shaft 18 fixedly connected to the tail end of the linkage rod 22, the driving roller shaft 18 penetrates through a cleaning groove 30, a first pressure roller shaft 31 is rotatably connected to the inner side wall of the cleaning box 17, a second pressure roller shaft 32 is rotatably connected to the inner side wall of the cleaning box 17, the driving roller shaft 18 is in transmission connection with the second pressure roller shaft 32 through a crawler belt, the first pressure roller shaft 31 is abutted against the second pressure roller shaft 32, rubber layers are arranged on the surfaces of the first pressure roller shaft 31 and the second pressure roller shaft 32, friction is increased by the rubber layers, the extrusion effect on the crawler belt is more remarkable, the crawler belt wound on the outer side wall of the driving roller shaft 18 is abutted against the outer side wall of the blackboard 14, a through hole is formed in, a plurality of launders 34 are arranged on the inner side wall of the limiting groove 24, the launders 34 are communicated with the mounting cavity 33, and the outer side wall of the transmission rod 7 is fixedly connected with a first transmission wheel 10;
rotate on the inside wall of installation cavity 33 and be connected with dust absorption mechanism, dust absorption mechanism is including rotating fan 13 of connection on the inside wall of installation cavity 33, fan 13's terminal fixedly connected with dead lever 12, the end of dead lever 12 rotates with the interior top of installation cavity 33 to be connected, fixedly connected with second transfer gear 11 on the lateral wall of dead lever 12, be connected through belt drive between second transfer gear 11 and the first transfer gear 10, it is connected with open-close plate 29 to rotate on the lateral wall of box 1, water tank 8's lateral wall fixedly connected with inlet tube 15, fixedly connected with drain pipe 16 on the lateral wall of box 1, drain pipe 16 is linked together with fixed cavity 3, the bottom of installation cavity 33 is the low-angle slope, make the sewage that gets into installation cavity 33 can follow drain pipe 16 and locate the discharge.
In the invention, when the blackboard 14 is cleaned in use, the motor 4 is started, the motor 4 rotates to drive the first bevel gear 27 to start rotating, the first bevel gear 27 drives the second bevel gear 28 to start rotating, the second bevel gear 28 drives the transmission rod 7 to start rotating, the transmission rod 7 rotates to drive the water flow transmission rod 9 to start rotating, the water flow transmission rod 9 rotates to enable water flow entering from the water inlet pipe 15 to be sucked into the water tank 8 and then to be discharged from the water outlet pipe 6, the water flow passes through the water discharge hole formed on the outer side wall of the water outlet pipe 6 and then to be discharged onto the blackboard 14 through the water discharge groove 19, the transmission rod 7 drives the first transmission wheel 10 to start rotating, the first transmission wheel 10 drives the second transmission wheel 11 to start rotating through the belt, the second transmission wheel 11 drives the fixed rod 12 to start rotating, the fixed rod 12 drives the fan 13 to start rotating, and the fan 13, chalk dust on the blackboard 14 is sucked through a water flowing groove 34 arranged on the inner side wall of a limiting groove 24 to avoid dust rising and injury to an instructor, an output shaft of a motor 4 drives a threaded rod 5 to rotate, the threaded rod 5 rotates to enable a fixed block 23 to move forwards, the fixed block 23 drives a cleaning box 17 to move forwards, the threaded rod 5 drives a gear 21 to rotate, the gear 21 drives a linkage rod 22 to rotate, the linkage rod 22 drives a driving roll shaft 18 to rotate, the driving roll shaft 18 rotates to drive a crawler belt arranged on the outer side wall of the driving roll shaft 18 to rotate, the crawler belt moves rightwards along with the cleaning box 17 to clean the blackboard 14 wetted by water flow, at the moment, the crawler belt absorbs moisture on the surface of the blackboard 14, and as the crawler belt is arranged between a second bevel gear 28 and a second pressure roll shaft 32, the second pressure roll shaft 32 is abutted against a first pressure roll shaft 31, in the process of clearance, the moisture on the pressure drop track between first pressure roller 31 and the second pressure roller 32 is extruded, avoid the blackboard on moisture too much to lead to unable rapid draing, thereby can't carry out the blackboard writing, the moisture that first pressure roller 31 and second pressure roller 32 were extruded passes through the through hole and falls to locking block 26 in, the rethread sets up the tye 34 drippage on the spacing groove 24 inside wall in the installation cavity 33, discharge through drain pipe 16 at last, restart motor 4, motor 4 counter-rotation drives clearance case 17 and moves left and accomplishes the reset.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. An electrician electronic class teaching device comprises a box body (1) and is characterized in that a mounting groove (2) is formed in the outer side wall of the box body (1), a blackboard (14) is fixedly mounted on the inner side wall of the mounting groove (2), a fixed cavity (3) is formed in the box body (1), a motor (4) is fixedly connected to the inner side wall of the fixed cavity (3), a first bevel gear (27) is fixedly connected to the outer side wall of an output shaft of the motor (4), a threaded rod (5) is fixedly connected to the tail end of the output shaft of the motor (4), the tail end of the threaded rod (5) is rotatably connected with the inner side wall of the fixed cavity (3), a mounting cavity (33) is formed in the box body (1), a water tank (8) is fixedly connected to the inner side wall of the mounting cavity (33), and a drainage mechanism is rotatably connected to the inner, the tail end of the drainage mechanism is fixedly connected with a transmission rod (7), a second bevel gear (28) is fixedly connected onto the outer side wall of the transmission rod (7), the second bevel gear (28) is meshed with a first bevel gear (27), a water outlet pipe (6) is fixedly connected onto the outer side wall of the water tank (8), the water outlet pipe (6) penetrates through the box body (1) and is fixedly connected with the inner side wall of the fixed cavity (3), a plurality of drain holes are formed on the outer side wall of the water outlet pipe (6), a plurality of drain grooves (19) are formed on the outer side wall of the box body (1), a limiting groove (24) is formed on the inner side wall of the mounting groove (2), a locking block (26) is slidably connected onto the inner side wall of the limiting groove (24), a locking groove (25) is formed on the outer side wall of the locking block (26), and a cleaning box (17) is, the cleaning box is characterized in that a fixed frame (20) is fixedly connected to the outer side wall of the cleaning box (17), a fixed block (23) is fixedly connected to the outer side wall of the cleaning box (17), a sliding groove is formed in the outer side wall of the mounting groove (2), the sliding groove is communicated with the fixed cavity (3), the fixed block (23) penetrates through the sliding groove and is rotatably connected with the threaded rod (5), the fixed frame (20) penetrates through the sliding groove, a linkage rod (22) is rotatably connected to the inner side wall of the fixed frame (20), a gear (21) is fixedly connected to the outer side wall of the linkage rod (22), the gear (21) is rotatably connected with the threaded rod (5), the linkage rod (22) sequentially penetrates through the outer side wall of the fixed frame (20) and the outer side wall of the cleaning box (17), a cleaning groove (30) is formed in the outer side wall of the cleaning box (17), and a cleaning mechanism is fixedly connected to the, the lateral wall of wiper mechanism and blackboard (14) offsets tightly, the through hole has been seted up on the lateral wall of clearance case (17), the through hole is linked together with locking groove (25), a plurality of tyes (34) have been seted up on the inside wall of spacing groove (24), tye (34) are linked together with installation cavity (33), the first transmission wheel of fixedly connected with (10) on the lateral wall of transfer line (7), it is connected with dust absorption mechanism to rotate on the inside wall of installation cavity (33), it is connected with open-close plate (29) to rotate on the lateral wall of box (1), the lateral wall fixedly connected with inlet tube (15) of water tank (8), fixedly connected with drain pipe (16) on the lateral wall of box (1), drain pipe (16) are linked together with fixed cavity (3).
2. An electrical and electronic teaching device according to claim 1, wherein the drainage mechanism comprises a water flow transmission rod (9) rotatably connected to the inner side wall of the water tank (8), the end of the water flow transmission rod (9) penetrates through the outer side wall of the water tank (8), and the end of the water flow transmission rod (9) is fixedly connected with the transmission rod (7).
3. The electrical and electronic teaching device according to claim 1, wherein the cleaning mechanism comprises a driving roller shaft (18) fixedly connected to the end of a linkage rod (22), the driving roller shaft (18) penetrates through a cleaning groove (30), a first pressure roller shaft (31) is rotatably connected to the inner side wall of the cleaning box (17), a second pressure roller shaft (32) is rotatably connected to the inner side wall of the cleaning box (17), the driving roller shaft (18) and the second pressure roller shaft (32) are connected through a crawler transmission, and a crawler arranged on the outer side wall of the driving roller shaft (18) abuts against the outer side wall of the blackboard (14).
4. An electrical and electronic teaching device according to claim 1, wherein the dust suction mechanism comprises a fan (13) rotatably connected to the inner side wall of the installation cavity (33), the end of the fan (13) is fixedly connected with a fixing rod (12), the end of the fixing rod (12) is rotatably connected to the inner top of the installation cavity (33), the outer side wall of the fixing rod (12) is fixedly connected with a second transmission wheel (11), and the second transmission wheel (11) is connected with the first transmission wheel (10) through a belt transmission.
5. An electro-technical and electronic teaching device according to claim 1, characterized in that the inner diameter of the fixing block (23) is larger than the outer diameter of the threaded rod (5), and the inner thread of the fixing block (23) is adapted to the outer thread of the threaded rod (5).
6. An electrical and electronic teaching device according to claim 1, wherein the drain hole provided on the outer side wall of the outlet pipe (6) is in communication with the drain groove (19).
7. An electrotechnical and electronic teaching device according to claim 2, characterized in that the water conveying rod (9) is made of austenitic stainless steel.
8. An electrical and electronic teaching device according to claim 3, wherein the first pressure roller shaft (31) and the second pressure roller shaft (32) are abutted against each other, and rubber layers are arranged on the surfaces of the first pressure roller shaft (31) and the second pressure roller shaft (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011125382.2A CN112123975A (en) | 2020-10-20 | 2020-10-20 | Electrician electronic class teaching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011125382.2A CN112123975A (en) | 2020-10-20 | 2020-10-20 | Electrician electronic class teaching device |
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| Publication Number | Publication Date |
|---|---|
| CN112123975A true CN112123975A (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011125382.2A Pending CN112123975A (en) | 2020-10-20 | 2020-10-20 | Electrician electronic class teaching device |
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| CN (1) | CN112123975A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796639A (en) * | 2021-01-08 | 2021-05-14 | 温州丰树农业科技有限公司 | Wooden door with automatic fire extinguishing function and use method thereof |
| CN112937166A (en) * | 2021-02-07 | 2021-06-11 | 黄河水利职业技术学院 | Interactive teaching display device of management class specialty course |
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| CN203611609U (en) * | 2013-12-20 | 2014-05-28 | 侯桂云 | Remote control type automatic-clearing blackboard |
| CN203957630U (en) * | 2014-07-14 | 2014-11-26 | 潍坊工商职业学院 | A kind of blackboard |
| CN204340478U (en) * | 2014-12-19 | 2015-05-20 | 王致凝 | Convenient blackboard |
| CN105216514A (en) * | 2015-10-19 | 2016-01-06 | 石家庄科达文教用品有限公司 | Manual monoblock type wet rubbing clipboard |
| CN206983588U (en) * | 2017-04-13 | 2018-02-09 | 熊梓燃 | A kind of board of education with dust adsorption function |
| CN107199807A (en) * | 2017-05-22 | 2017-09-26 | 王奕贝 | Flushable blackboard |
| CN207403452U (en) * | 2017-06-08 | 2018-05-25 | 费春杰 | Spin dryer recirculated water blackboard system |
| CN110154592A (en) * | 2018-03-15 | 2019-08-23 | 荆楚理工学院 | A kind of Full-automatic dust-free blackboard |
| CN208682450U (en) * | 2018-04-04 | 2019-04-02 | 六安中达信息科技有限公司 | It is a kind of to clean dust removing blackboard automatically |
| CN108501579A (en) * | 2018-05-30 | 2018-09-07 | 李艳贞 | A kind of junior school student's blackboard facilitating wiping |
| CN108944185A (en) * | 2018-05-31 | 2018-12-07 | 巩玉兵 | Blackboard |
| CN109610421A (en) * | 2018-11-15 | 2019-04-12 | 合肥嘉仕诚能源科技有限公司 | A kind of energy conservation and environmental protection device for cleaning water surface rubbish |
| CN109778982A (en) * | 2019-03-20 | 2019-05-21 | 西安文贝知识产权服务有限公司 | There is one kind city ponding to extract recirculation function municipal drainage device |
| CN110843384A (en) * | 2019-12-10 | 2020-02-28 | 南京工业职业技术学院 | Auxiliary device utilizing track rack |
| CN111483259A (en) * | 2020-05-29 | 2020-08-04 | 沙洲职业工学院 | Ecological environment-friendly multifunctional adsorption cleaning blackboard device |
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Application publication date: 20201225 |