CN221040260U - Multimedia teaching device - Google Patents
Multimedia teaching device Download PDFInfo
- Publication number
- CN221040260U CN221040260U CN202323067022.3U CN202323067022U CN221040260U CN 221040260 U CN221040260 U CN 221040260U CN 202323067022 U CN202323067022 U CN 202323067022U CN 221040260 U CN221040260 U CN 221040260U
- Authority
- CN
- China
- Prior art keywords
- wall
- roller
- multimedia teaching
- teaching device
- display screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 42
- 239000004744 fabric Substances 0.000 claims abstract description 32
- 238000004804 winding Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 23
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 23
- 241001330002 Bambuseae Species 0.000 claims description 23
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 23
- 239000011425 bamboo Substances 0.000 claims description 23
- 230000000694 effects Effects 0.000 abstract description 4
- 238000003466 welding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Landscapes
- Displays For Variable Information Using Movable Means (AREA)
Abstract
The utility model discloses a multimedia teaching device, which comprises a I-shaped frame, wherein a threaded column is arranged on the outer wall of the top of the I-shaped frame, a limiting cylinder is connected with the outer wall of the threaded column in a threaded manner, a fixing plate is sleeved on the outer wall of the threaded column in a sliding manner, telescopic cylinders are arranged at the two ends of the fixing plate, the telescopic columns are inserted into the bottoms of the telescopic cylinders, the bottoms of the telescopic columns are arranged on the outer wall of the top of the I-shaped frame, a display frame is arranged at the top end of the telescopic cylinders, a display screen is fixedly arranged on the outer wall of the front of the display frame, a winding drum roller and a plurality of tensioning rollers are rotationally connected between the inner walls of the two sides of the display frame, protective cloth is connected between the winding drum roller and the side walls of the tensioning rollers in a transmission manner, and one end of the protective cloth is provided with a guide rod. According to the utility model, the rotation limiting cylinder is adopted to move along the threaded column, so that the fixing plate drives the display frame to move up and down, the height of the display screen is adjusted, the adjustment mode is simple, the operation is easy and labor-saving, a teacher can conveniently conduct multimedia teaching, and the teaching effect is improved.
Description
Technical Field
The utility model relates to the technical field of teaching devices, in particular to a multimedia teaching device.
Background
Multimedia is a new technology developed from the middle of 1990, which integrates scattered resources on the Internet into an organic whole, realizes comprehensive sharing and organic collaboration of the resources, and enables people to transparently use the whole capability of the resources and acquire information as required. When the multimedia teaching is carried out, the teaching is carried out mainly by placing the display screen and matching with writing.
However, in the present multimedia teaching, the display screen on the teaching device is generally fixed, so that a teacher cannot adjust the height of the display screen, the teaching effect is affected, and when the teaching device is not used, the display screen is directly exposed in the air, dust is easily accumulated on the display screen, and the surface of the display screen is fuzzy. Therefore, there is a need to design a multimedia teaching device to solve the above problems.
Disclosure of utility model
The utility model aims to provide a multimedia teaching device to solve the defects in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
The utility model provides a multimedia teaching device, includes the spool, the top outer wall of spool is provided with the screw thread post, the outer wall threaded connection of screw thread post has a spacing section of thick bamboo, the outer wall slip of screw thread post has cup jointed the fixed plate, the both ends of fixed plate are provided with flexible section of thick bamboo, the inside grafting of bottom of flexible section of thick bamboo has flexible post, and the bottom of flexible post sets up the top outer wall at the spool, the top of flexible section of thick bamboo is provided with the display frame, the positive outer wall fixed mounting of display frame has the display screen, rotate between the both sides inner wall of display frame and be connected with reel roller and a plurality of tight roller that rises, the transmission is connected with the protective clothing between the lateral wall of reel roller and tight roller, the one end of protective clothing is provided with the guide bar, rotate between the both sides inner wall of display frame and be connected with the wire roller, the outer wall of wire roller is articulated have a plurality of to draw wire, and the top of acting as go-between and the bottom outer wall setting of guide bar.
Further, the front outer wall of the guide rod is provided with a clamping hole, and the front outer wall of the display frame is in threaded connection with a plurality of bolts matched with the clamping hole.
Further, the second wheel body has been cup jointed to the fixed one end of reel roller, the fixed first wheel body that has cup jointed of one end of line roller, the transmission is connected with the belt between the lateral wall of first wheel body and second wheel body.
Further, the connecting ring is fixedly sleeved at one end of the wire roller, the rocking rod is arranged on the side wall of the connecting ring, and the crank is arranged on the side wall of one end of the rocking rod.
Further, a plurality of clamping grooves are formed in the outer wall of the top of the limiting cylinder, and balls are clamped in the clamping grooves.
Further, a plurality of rollers are fixedly mounted on the outer wall of the bottom of the I-shaped frame, a plurality of positioning bolts are connected with the outer wall of the top of the I-shaped frame in a threaded mode, and a base plate is arranged at the bottom end of each positioning bolt.
The beneficial effects of the utility model are as follows:
1. Through the screw thread post, spacing section of thick bamboo and the fixed plate that set up, adopt to rotate spacing section of thick bamboo and remove along the screw thread post for the fixed plate drives the display frame and reciprocates, and then realizes the regulation to the display screen height, and regulation mode is simple, and easy operation is effortless, makes things convenient for the teacher to carry out multimedia teaching, has improved the teaching effect.
2. Through the protective clothing that sets up, when protective clothing moves down the front of display screen, protective clothing avoids the display screen direct exposure in the air, prevents to pile up the dust on the display screen, causes the display screen surface to blur, and protective clothing can move up, can not block the display screen during normal use, can not hinder the normal use of display screen, and is simple to use convenient.
3. Through the bolt, the card hole and the ball that set up, the one end joint of bolt is in the card hole, is fixed the guide bar when packing up and putting down protective cloth respectively, avoids protective cloth to take place to remove, and the ball rolls on the bottom outer wall of fixed plate, has reduced the friction between spacing section of thick bamboo and the fixed plate for spacing section of thick bamboo rotates more conveniently.
4. Through the first wheel body, belt and the second wheel body that set up, the wire roller drives first wheel body and rotates, and first wheel body passes through the belt and drives the second wheel body and rotate, and the second wheel body drives the reel roller and rotate to make wire roller and reel roller synchronous rotation and rotation direction unanimous, make the protective clothing put down with go up the time all more convenient.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a schematic perspective view of a multimedia teaching apparatus according to the present utility model;
fig. 2 is a schematic diagram of a front structure of a multimedia teaching device according to the present utility model;
Fig. 3 is a schematic diagram of a partial front structure of a multimedia teaching device according to the present utility model;
Fig. 4 is a schematic diagram of a front structure of a display frame of a multimedia teaching device according to the present utility model;
fig. 5 is a schematic side view of a display frame of a multimedia teaching apparatus according to the present utility model;
Fig. 6 is a schematic diagram of a top structure of a display frame of a multimedia teaching device according to the present utility model;
fig. 7 is an enlarged schematic diagram of a portion a of a multimedia teaching device according to the present utility model.
In the figure: the device comprises a I-shaped frame 1, a threaded column 2, a limit cylinder 3, a fixed plate 4, a telescopic cylinder 5, a telescopic column 6, a display frame 7, a winding drum roller 8, a tensioning roller 9, protective cloth 10, a guide rod 11, a wire roller 12, a wire drawing 13, a clamping hole 14, a bolt 15, a second wheel body 16, a first wheel body 17, a belt 18, a connecting ring 19, a rocker 20, a crank 21, a clamping groove 22, a ball 23, a roller 24, a positioning bolt 25, a backing plate 26 and a display screen 27.
Description of the embodiments
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 7, a multimedia teaching device includes a spool 1, a threaded column 2 is welded on the top outer wall of the spool 1, a limit cylinder 3 is connected to the outer wall of the threaded column 2 in a threaded manner, a fixing plate 4 is sleeved on the outer wall of the threaded column 2 in a sliding manner, a telescopic cylinder 5 is welded on two ends of the fixing plate 4, a telescopic column 6 is inserted in the bottom end of the telescopic cylinder 5, the bottom end of the telescopic column 6 is welded on the top outer wall of the spool 1, the telescopic columns 6 are symmetrically arranged, a display frame 7 is welded on the top end of the telescopic cylinder 5, a display screen 27 is fixedly installed on the front outer wall of the display frame 7, when the limit cylinder 3 rotates upwards along the threaded column 2, the limit cylinder 3 pushes the fixing plate 4 to move upwards, the telescopic cylinder 5 pushes the display frame 7 to move upwards, the display screen 27 is heightened, when the limit cylinder 3 rotates downwards along the threaded column 2, the display frame 7 downwards presses the telescopic cylinder 5 due to gravity, the telescopic cylinder 5 downwards moves along the telescopic column 6, the display screen 27 is lowered, a winding drum roller 8 and a plurality of tensioning rollers 9 are rotationally connected between the inner walls of the two sides of the display frame 7, a protective cloth 10 is in transmission connection between the winding drum roller 8 and the side walls of the tensioning rollers 9, the tensioning rollers 9 are positioned at the top of the display frame 7, the protective cloth 10 is guided to enter the front of the display frame 7 from the back of the display frame 7, one end of the protective cloth 10 is provided with a guide rod 11, the guide rod 11 guides the movement of the protective cloth 10, the guide rod 11 applies gravity to one end of the protective cloth 10, the protective cloth 10 can always keep a vertical state, a wire roller 12 is rotationally connected between the inner walls of the two sides of the display frame 7, the outer wall of the wire roller 12 is winded with a plurality of pull wires 13, the top ends of the pull wires 13 are arranged with the outer walls of the bottom of the guide rod 11, when the wire roller 12 rotates anticlockwise, the wire roller 12 pulls the pull wire 13 to move downwards, the pull wire 13 pulls the guide rod 11 to move downwards, and then the protective cloth 10 is enabled to move downwards to the front face of the display screen 27, the display screen 27 is prevented from being directly exposed in the air, dust accumulation on the display screen 27 is prevented, the surface of the display screen 27 is caused to be fuzzy, and when the winding drum roller 8 rotates clockwise, the winding drum roller 8 drives the protective cloth 10 to move upwards, and the protective cloth 10 does not block the display screen 27 any more, so that the display screen 27 can be used normally.
According to the utility model, the screw thread column, the limit cylinder and the fixed plate are arranged, and the rotation limit cylinder is adopted to move along the screw thread column, so that the fixed plate drives the display frame to move up and down, the height of the display screen is adjusted, the adjustment mode is simple, the operation is easy and labor-saving, a teacher can conveniently perform multimedia teaching, and the teaching effect is improved; through the protective clothing that sets up, when protective clothing moves down the front of display screen, protective clothing avoids the display screen direct exposure in the air, prevents to pile up the dust on the display screen, causes the display screen surface to blur, and protective clothing can move up, can not block the display screen during normal use, can not hinder the normal use of display screen, and is simple to use convenient.
Further, the clamping holes 14 are formed in the front outer wall of the guide rod 11, a plurality of bolts 15 matched with the clamping holes 14 are connected to the front outer wall of the display frame 7 in a threaded mode, the number of the bolts 15 is two, the bolts are respectively located on the upper side and the lower side of the display screen 27, one end of each bolt 15 is clamped in each clamping hole 14, the guide rod 11 is fixed when the protective cloth 10 is folded and put down, and movement of the protective cloth 10 is avoided.
Further, one end of the winding drum roller 8 is fixedly sleeved with the second wheel body 16, one end of the wire roller 12 is fixedly sleeved with the first wheel body 17, a belt 18 is connected between the side walls of the first wheel body 17 and the second wheel body 16 in a transmission manner, the wire roller 12 drives the first wheel body 17 to rotate, the first wheel body 17 drives the second wheel body 16 to rotate through the belt 18, and the second wheel body 16 drives the winding drum roller 8 to rotate, so that the wire roller 12 and the winding drum roller 8 synchronously rotate and the rotation direction is consistent, and the protective cloth 10 is more convenient to put down and put up; one end of the wire roller 12 is fixedly sleeved with a connecting ring 19, the side wall of the connecting ring 19 is welded with a rocker 20, one end side wall of the rocker 20 is welded with a crank 21, a teacher holds the hand lever 21 to rotate the rocker 20, the rocker 20 drives the connecting ring 19 to rotate, and the connecting ring 19 drives the wire roller 12 to rotate.
Further, a plurality of draw-in grooves 22 have been seted up to the top outer wall of spacing section of thick bamboo 3, and draw-in grooves 22 are annular equidistance and arrange, and the inside joint of draw-in grooves 22 has ball 23, and ball 23 can freely rotate in draw-in grooves 22, and ball 23 rolls on the bottom outer wall of fixed plate 4, has reduced the friction between spacing section of thick bamboo 3 and the fixed plate 4 for spacing section of thick bamboo 3 rotates more conveniently.
Further, the bottom outer wall fixed mounting of I-shaped frame 1 has a plurality of gyro wheel 24, and gyro wheel 24 makes this teaching device remove more conveniently, and I-shaped frame 1's top outer wall threaded connection has a plurality of positioning bolt 25, and positioning bolt 25 is symmetrical arrangement, and positioning bolt 25's bottom welding has backing plate 26, rotates positioning bolt 25 and makes backing plate 26 support tight ground, fixes I-shaped frame 1, can prevent that I-shaped frame 1 from removing.
Working principle: during the use, when the height of display screen 27 is lower, the teacher rotates spacing section of thick bamboo 3 and upwards rotates along screw thread post 2, spacing section of thick bamboo 3 promotes fixed plate 4 and upwards moves, ball 23 rolls on the bottom outer wall of fixed plate 4, friction between spacing section of thick bamboo 3 and the fixed plate 4 has been reduced, fixed plate 4 drives telescopic cylinder 5 and upwards moves along telescopic post 6, telescopic cylinder 5 promotes the upward movement of display frame 7, make display screen 27 increase, when the height of display screen 27 is higher, the teacher rotates spacing section of thick bamboo 3 and downwards rotates along screw thread post 2, display frame 7 is because of gravity pushes down telescopic cylinder 5, telescopic cylinder 5 is followed telescopic post 6 and is downwards moved for display screen 27 is adjusted down, when the teacher is when not using display screen 27, the teacher holds the handspike 21 anticlockwise rotation rocker 20, rocker 20 drives go-between 19 and rotates, connecting ring 19 drive wire roller 12 rotates, wire roller 12 drives first wheel 17 and upwards moves through belt 18, second wheel 16 drive reel 8 rotates, thereby make wire roller 12 and reel 8 rotate, wire guide cloth 13 and then make the clockwise direction roller 10 move down and make the guide roller 10 move down, can make the display screen 10 and make the screen 10 and then make the screen 10 move down in a left-right direction, and the front, and then can make the screen 10 is kept in front to be in the guide roll 10, and the guide roller 10 moves down, and then can make the screen 10 moves down, and can make the display screen 10 is kept the front and the screen 10 and can be in the front, and can make the protection roller 10 moves 10 and the protection 10 moves down and the screen 10 and the front and the protection roller 10 moves.
Examples
The utility model provides a multimedia teaching device, including I-shaped frame 1, I-shaped frame 1's top outer wall welding has screw thread post 2, screw thread post 2's outer wall threaded connection has spacing section of thick bamboo 3, screw thread post 2's outer wall sliding sleeve has fixed plate 4, fixed plate 4's both ends welding has flexible section of thick bamboo 5, flexible post 6 has been pegged graft to the inside bottom of flexible post 5, and flexible post 6's bottom welding is at I-shaped frame 1's top outer wall, flexible post 6 is symmetrical arrangement, flexible post 5's top welding has display frame 7, display frame 7's front outer wall fixed mounting has display screen 27, when spacing section of thick bamboo 3 upwards rotates along screw thread post 2, spacing section of thick bamboo 3 promotes fixed plate 4 upwards to remove, fixed plate 4 drives flexible section of thick bamboo 5 upwards to remove along flexible post 6, flexible section of thick bamboo 5 promotes display frame 7 upwards to remove, make display screen 27 increase, when spacing section of thick bamboo 3 rotates downwards along screw thread post 2, the display frame 7 downwards presses the telescopic cylinder 5 due to gravity, the telescopic cylinder 5 downwards moves along the telescopic column 6, the display screen 27 is lowered, a winding drum roller 8 and a plurality of tensioning rollers 9 are rotationally connected between the inner walls of the two sides of the display frame 7, a protective cloth 10 is in transmission connection between the winding drum roller 8 and the side walls of the tensioning rollers 9, the tensioning rollers 9 are positioned at the top of the display frame 7, the protective cloth 10 is guided to enter the front of the display frame 7 from the back of the display frame 7, one end of the protective cloth 10 is provided with a guide rod 11, the guide rod 11 guides the movement of the protective cloth 10, the guide rod 11 applies gravity to one end of the protective cloth 10, the protective cloth 10 can always keep a vertical state, a wire roller 12 is rotationally connected between the inner walls of the two sides of the display frame 7, a plurality of pull wires 13 are wound on the outer walls of the wire roller 12, the top ends of the pull wires 13 are arranged with the outer walls of the bottom of the guide rod 11, and when the wire roller 12 rotates anticlockwise, the wire roller 12 pulls the stay wire 13 to move downwards, the stay wire 13 pulls the guide rod 11 to move downwards, and then the protective cloth 10 moves downwards to the front of the display screen 27, so that the display screen 27 is prevented from being directly exposed in the air, dust is prevented from being accumulated on the display screen 27, the surface of the display screen 27 is fuzzy, when the drum roller 8 rotates clockwise, the drum roller 8 drives the protective cloth 10 to move upwards, and the protective cloth 10 does not block the display screen 27 any more, so that the display screen 27 can be used normally.
Examples
The embodiment is further limited on the basis of embodiment 1, the front outer wall of the guide rod 11 is provided with a clamping hole 14, the front outer wall of the display frame 7 is in threaded connection with a plurality of bolts 15 matched with the clamping hole 14, the number of the bolts 15 is two, the bolts 15 are respectively positioned on the upper side and the lower side of the display screen 27, one end of each bolt 15 is clamped in the clamping hole 14, and the guide rod 11 is respectively fixed when the protective cloth 10 is retracted and put down, so that the protective cloth 10 is prevented from moving; one end of the winding drum roller 8 is fixedly sleeved with a second wheel body 16, one end of the wire roller 12 is fixedly sleeved with a first wheel body 17, a belt 18 is connected between the side walls of the first wheel body 17 and the second wheel body 16 in a transmission manner, the wire roller 12 drives the first wheel body 17 to rotate, the first wheel body 17 drives the second wheel body 16 to rotate through the belt 18, and the second wheel body 16 drives the winding drum roller 8 to rotate, so that the wire roller 12 and the winding drum roller 8 synchronously rotate and the rotation direction is consistent, and the protective cloth 10 is more convenient to put down and put up; one end of the wire roller 12 is fixedly sleeved with a connecting ring 19, the side wall of the connecting ring 19 is welded with a rocker 20, the side wall of one end of the rocker 20 is welded with a crank 21, a teacher holds the handle 21 to rotate the rocker 20, the rocker 20 drives the connecting ring 19 to rotate, and the connecting ring 19 drives the wire roller 12 to rotate; the outer wall of the top of the limiting cylinder 3 is provided with a plurality of clamping grooves 22, the clamping grooves 22 are arranged in an annular equidistant manner, the inside of the clamping grooves 22 is clamped with balls 23, the balls 23 can freely rotate in the clamping grooves 22, the balls 23 roll on the outer wall of the bottom of the fixed plate 4, friction between the limiting cylinder 3 and the fixed plate 4 is reduced, and the limiting cylinder 3 rotates more conveniently; the bottom outer wall fixed mounting of I-shaped frame 1 has a plurality of gyro wheel 24, and gyro wheel 24 makes this teaching device remove more conveniently, and I-shaped frame 1's top outer wall threaded connection has a plurality of positioning bolt 25, and positioning bolt 25 is symmetrical arrangement, and positioning bolt 25's bottom welding has backing plate 26, rotates positioning bolt 25 and makes backing plate 26 support tight ground, fixes I-shaped frame 1, can prevent that I-shaped frame 1 from removing.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (6)
1. The utility model provides a multimedia teaching device, includes spool (1), its characterized in that, the top outer wall of spool (1) is provided with screw thread post (2), the outer wall threaded connection of screw thread post (2) has a spacing section of thick bamboo (3), the outer wall slip of screw thread post (2) has cup jointed fixed plate (4), the both ends of fixed plate (4) are provided with telescopic cylinder (5), the inside grafting of bottom of telescopic cylinder (5) has telescopic column (6), and telescopic column (6)'s bottom sets up the top outer wall at spool (1), the top of telescopic cylinder (5) is provided with display rack (7), the positive outer wall fixed mounting of display rack (7) has display screen (27), rotation is connected with reel roller (8) and a plurality of tight roller (9) between the both sides inner wall of display rack (7), the transmission is connected with protective cloth (10) between the lateral wall of reel roller (8) and tight roller (9), the one end of protective cloth (10) is provided with guide bar (11), the outer wall that connects between the inner wall (12) of display rack (7) and the outer wall (13) of acting as go-between, and the outer wall (13) of a plurality of stretching wires are provided with.
2. The multimedia teaching device according to claim 1, characterized in that the front outer wall of the guide rod (11) is provided with a clamping hole (14), and the front outer wall of the display frame (7) is in threaded connection with a plurality of bolts (15) matched with the clamping hole (14).
3. The multimedia teaching device according to claim 1, characterized in that one end of the winding drum roller (8) is fixedly sleeved with a second wheel body (16), one end of the wire roller (12) is fixedly sleeved with a first wheel body (17), and a belt (18) is in transmission connection between the side walls of the first wheel body (17) and the second wheel body (16).
4. The multimedia teaching device according to claim 1, characterized in that one end of the wire roller (12) is fixedly sleeved with a connecting ring (19), a rocker (20) is arranged on the side wall of the connecting ring (19), and a crank (21) is arranged on the side wall of one end of the rocker (20).
5. The multimedia teaching device according to claim 1, wherein the top outer wall of the limiting cylinder (3) is provided with a plurality of clamping grooves (22), and balls (23) are clamped in the clamping grooves (22).
6. The multimedia teaching device according to claim 1, characterized in that a plurality of rollers (24) are fixedly mounted on the outer wall of the bottom of the i-shaped frame (1), a plurality of positioning bolts (25) are connected to the outer wall of the top of the i-shaped frame (1) in a threaded manner, and a base plate (26) is arranged at the bottom end of each positioning bolt (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323067022.3U CN221040260U (en) | 2023-11-14 | 2023-11-14 | Multimedia teaching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323067022.3U CN221040260U (en) | 2023-11-14 | 2023-11-14 | Multimedia teaching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221040260U true CN221040260U (en) | 2024-05-28 |
Family
ID=91135774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323067022.3U Active CN221040260U (en) | 2023-11-14 | 2023-11-14 | Multimedia teaching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221040260U (en) |
-
2023
- 2023-11-14 CN CN202323067022.3U patent/CN221040260U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN221040260U (en) | Multimedia teaching device | |
| CN111606099A (en) | Tension-free bandage winding device | |
| CN210329808U (en) | Drawing platform is used in mechanical drawing teaching | |
| CN212531609U (en) | Tension-free bandage winding device | |
| CN219009472U (en) | Grey cloth flaw detection machine | |
| CN217517107U (en) | Sectional warping machine | |
| CN217555444U (en) | Cable shielding area storage device | |
| CN215516219U (en) | A cable receive and releases auxiliary device for geophysical prospecting | |
| CN209889911U (en) | Edge covering mechanism based on dense mesh type safe vertical net | |
| CN209412513U (en) | A kind of adjustable clothes hanger dyed cloth | |
| CN212292184U (en) | Unwinding cloth containing groove of grey cloth rolling machine | |
| CN210192926U (en) | Coiling device for printing machine | |
| CN221853584U (en) | Tension-free unreeling device for composite fabric | |
| CN112962284A (en) | Overlapping ironing prevention workbench for garment processing | |
| CN217024627U (en) | Coiling mechanism of clothing cloth | |
| CN220887835U (en) | Yarn guiding device of spinning frame | |
| CN220141171U (en) | Picture and text suspension frame | |
| CN213976410U (en) | A pay-off for weaving silk thread | |
| CN214827856U (en) | Cloth inspecting machine convenient to guarantee cloth quality | |
| CN112340529B (en) | Vertical wire outlet device for steel wire rope of displacement sensor | |
| CN219338906U (en) | Offset press convenient to continuous printing | |
| CN220148890U (en) | Incomplete roll processing apparatus of metal reel | |
| CN211521172U (en) | Textile yarn winding device | |
| CN212608364U (en) | Antiseized coiling mechanism of dyeing coil stock | |
| CN212668836U (en) | Cable traction machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |