CN210696537U - English teaching multimedia device - Google Patents

English teaching multimedia device Download PDF

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Publication number
CN210696537U
CN210696537U CN201920779736.1U CN201920779736U CN210696537U CN 210696537 U CN210696537 U CN 210696537U CN 201920779736 U CN201920779736 U CN 201920779736U CN 210696537 U CN210696537 U CN 210696537U
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China
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cavity
cover plate
push
plate
pull cover
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Expired - Fee Related
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CN201920779736.1U
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Chinese (zh)
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翁洁
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Individual
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Individual
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Abstract

The utility model relates to an English teaching multimedia device, which comprises a support plate, a horizontal guide rail, a left push-pull cover plate and a right push-pull cover plate which are arranged in parallel, wherein the left push-pull cover plate and the right push-pull cover plate are closed towards the middle part; the left cavity and the right cavity are respectively provided with a driving device which pushes the computer display on the movable plate in the middle cavity to the upper part of the supporting plate when the left push-pull cover plate and the right push-pull cover plate move towards opposite directions; when controlling push-and-pull apron during to opposite direction motion, the top that will place the computer display in inside and release the backup pad supplies the mr to carry out the use of class, has solved at present and has inlayed computer display on the lectern, and the mr can only bow the defect of using, has avoided the long-time lecture of bowing of mr to cause the vertebra to take place the problem of damage.

Description

English teaching multimedia device
Technical Field
The utility model relates to a multimedia teaching field especially relates to an english teaching multimedia device.
Background
English teaching refers to the process of teaching english to persons whose english language is or is not the first language. English teaching relates to many professional theoretical knowledge, including linguistics, second language acquisition, glossaries, sentence syntactics, literature, corpus theory, cognitive psychology, etc. English teaching is a progressive process, and English learning is crucial today in globalization and rapid development, whether for people who have English in the first language or not.
At present, in the english teaching field, multimedia teaching is becoming the mainstream gradually, makes the use in multimedia audio-visual classroom also fairly common, has all built special multimedia classroom in each school and teaching institution, and multimedia teaching makes the teaching of school very convenient and practical, has become the indispensable teaching equipment of modern teaching. But at present when carrying out the multimedia teaching, the computer of teaching usefulness that the mr used all is sunken to put on the multimedia lecture, can lead to the mr to all hang down the characters that can see on the computer display most time when lecturing, causes very big damage to mr's vertebra, and the setting of putting flat simultaneously also leads to the mr to see not clearly because of the reason of the reflection of light when watching, has also caused the influence to mr's eyesight.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a computer monitor which can be used in the teaching use process, and can be lifted to the desktop for teachers to normally watch the English teaching multimedia device for teaching.
In order to achieve the purpose, the utility model adopts the following technical scheme that the English teaching multimedia device comprises parallel supporting plates, the tops of the parallel supporting plates are fixedly connected through parallel horizontal guide rails, a left push-pull cover plate and a right push-pull cover plate are arranged above the supporting plates, the left push-pull cover plate and the right push-pull cover plate are movably connected with the horizontal guide rails through horizontal sliders movably connected on the horizontal guide rails, and the left push-pull cover plate and the right push-pull cover plate are gathered to the middle part to be closed;
the middle parts of the supporting plates which are parallel to each other are fixedly connected through a horizontal partition plate which is vertical to the supporting plates, the upper surface of the horizontal partition plate is fixedly connected with a left vertical partition plate and a right vertical partition plate which are vertical to the horizontal partition plate, the tops of the left vertical partition plate and the right vertical partition plate are fixedly connected with a horizontal guide rail, the left vertical partition plate and the right vertical partition plate divide a cavity formed by the upper part of the horizontal partition plate into a left cavity, a middle cavity and a right cavity, a movable plate which can move up and down is arranged in the middle cavity, and a left vertical guide rail group and a right vertical guide rail group which are arranged on the two sides of the movable plate and the left vertical partition plate and the right vertical partition plate on the two sides of the middle cavity; a support frame is fixedly arranged on the movable plate, and a computer display used for English multimedia teaching is arranged on the support frame;
and the left cavity and the right cavity are respectively internally provided with a driving device which pushes the computer display on the movable plate in the middle cavity to the upper part of the supporting plate when the left push-pull cover plate and the right push-pull cover plate move towards opposite directions.
The driving device comprises a slide rod respectively arranged in a left cavity and a right cavity, and a sliding sleeve which is sleeved on the slide rod and can slide left and right on the slide rod, the sliding sleeves in the left cavity and the right cavity are respectively and fixedly connected with a horizontal slide block connected below a left push-pull cover plate and a right push-pull cover plate, when the left push-pull cover plate and the right push-pull cover plate move in opposite directions, the sliding sleeves in the left cavity and the right cavity move in opposite directions along the slide rod, pull ropes are respectively connected on the left slide block and the right slide block, the end parts of the pull ropes connected on the left slide block are fixedly connected with the sliding sleeves in the left cavity according to an upper pulley on a left vertical partition plate and a left vertical partition plate, the end parts of the pull ropes connected on the right slide block are fixedly connected with the upper pulley on a right vertical partition plate and the sliding sleeves in the right cavity in turn, and when the left push, when the sliding sleeve in the left cavity slides to the leftmost end, the right push-pull cover plate moves to the rightmost end, and when the sliding sleeve in the right cavity slides to the rightmost end, the moving plate is pulled to the highest position, and the computer display is pushed to the upper side of the supporting plate.
The left sliders connected to the left vertical guide rail set are connected through a left connecting rod, the right sliders movably connected to the right vertical guide rail set are connected through a right connecting rod, the end portion of the pull rope connected to the left sliding sleeve in the left cavity is fixedly connected with the middle portion of the left connecting rod, and the end portion of the pull rope connected to the right sliding sleeve in the right cavity is fixedly connected with the middle portion of the right connecting rod.
The sliding rod is provided with sliding grooves which are symmetrical to each other and parallel to the central line of the sliding rod, one side of each sliding groove is provided with a positioning groove, a positioning device matched with the positioning groove is arranged in the sliding sleeve, and when the moving plate is pulled to the highest position, the positioning device is matched with the positioning groove to fix the sliding sleeve on the sliding rod.
Slide the intraductal compression chamber that is equipped with of cover, slide and seted up the through-hole on the sheathed tube medial surface, through-hole and compression chamber intercommunication, positioner include that one end is located the locating pin that the through-hole was passed to compression intracavity one end, be located the tip fixedly connected with dog of the locating pin of compression intracavity, the diameter of dog be greater than the diameter of through-hole, the dog is connected through compression spring with the bottom in compression chamber, and when the locating pin moved the position of locating slot, compressed compression spring promoted the locating pin and made the tip of locating pin enter into the locating slot and fix a position fixedly.
The bottom of movable plate be equipped with the buffering and prevent falling the device, the buffering prevent falling the device and include the buffer board, fixed connection buffer board bottom and with buffer board vertically buffering post, the tip of buffering post pass the buffer hole that is equipped with on the horizontal baffle, horizontal baffle and buffer board between the buffering post on the cover be equipped with buffer spring.
The end face of the positioning pin, which is close to the middle cavity, is provided with a guide surface.
The utility model has the advantages that: when controlling the push-and-pull apron when opposite direction motion, the top that will place the computer display in inside and release the backup pad supplies the mr to carry out the use of going to class, has solved and has inlayed computer display at present on the lectern, and the mr only can the bow defect of using, has avoided the long-time lecture of bowing of mr to cause the problem that the vertebra takes place the damage, and when using simultaneously, when controlling the push-and-pull lid and folding to the middle part, the computer put into the device's inside, avoid the stolen or damaged condition of computer when not using, provide convenience for the mr carries out english multimedia teaching, avoided the mr to form the defect of occupational disease at the teaching in-process simultaneously.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic structural view of the present invention in use;
FIG. 3 is a schematic structural view of the connection between the sliding rod and the sliding sleeve according to the present invention;
FIG. 4 is an enlarged view of the part A of FIG. 3;
FIG. 5 is a schematic structural view of the middle buffering anti-falling device of the present invention;
fig. 6 is a schematic view of the connection structure of the middle moving plate in the top view of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Examples
As shown in fig. 1, an english teaching multimedia device includes parallel supporting plates 1, the parallel supporting plates 1 can form a supporting body of a teacher's desk for multimedia teaching, the tops of the parallel supporting plates 1 are fixedly connected through parallel horizontal guide rails 2, a left push-pull cover plate 4 and a right push-pull cover plate 5 are arranged above the supporting plates 1, the left push-pull cover plate 4 and the right push-pull cover plate 5 are movably connected with the horizontal guide rails 2 through horizontal sliding blocks 6 movably connected to the horizontal guide rails 2, and the left push-pull cover plate 4 and the right push-pull cover plate 5 are gathered to the middle for closing; the left and right push-pull covers can surround the parts in the support plate 1 when being folded towards the middle, and can be locked by an additional lock when being folded towards the middle, so that the risk that the internal parts are damaged or stolen is avoided, and the contacted end parts of the left and right push-pull covers are provided with rubber buffer pads to avoid the mutual collision and damage of the left and right push-pull covers when being folded towards the middle;
the middle parts of the supporting plates 1 which are parallel to each other are fixedly connected through a horizontal clapboard 7 which is vertical to the supporting plates 1, the upper surface of the horizontal clapboard 7 is fixedly connected with a left vertical clapboard 8 and a right vertical clapboard 9 which are vertical to the horizontal clapboard 7, the top parts of the left vertical clapboard 8 and the right vertical clapboard 9 are fixedly connected with the horizontal guide rail 2, the left vertical baffle plate 8 and the right vertical baffle plate 9 divide the cavity formed at the upper part of the horizontal baffle plate 7 into a left cavity, a middle cavity and a right cavity, and divide the formed cavities, so that the parts in each cavity can not be influenced mutually when the cavity works, the stability of the cavity works can be ensured, a movable plate 14 moving up and down is arranged in the middle cavity, and two sides of the movable plate 14 are movably connected with a left vertical guide rail group 10 and a right vertical guide rail group 11 which are arranged on a left vertical partition plate 8 and a right vertical partition plate 9 on two sides of the middle cavity respectively through a left slide block 12 and a right slide block 13; a support frame 15 is fixedly arranged on the movable plate 14, and a computer display 16 used for English multimedia teaching is arranged on the support frame 15; when the movable plate 14 is connected with the left and right vertical partition plates, the four corners of the movable plate are provided with the sliding blocks which are matched with the vertical sliding rail groups, so that the movable plate can ensure that the movable plate is more stable when the computer display is supported, and meanwhile, the movable plate 14 can move upwards along with the sliding rails, so that the computer display can be ensured to be positioned on a formed teaching desktop for a teacher to use in the using process,
specifically, when in use, as shown in fig. 2, a driving device for pushing the computer monitor 16 on the moving plate 14 in the middle cavity to the upper side of the supporting plate 1 when the left push-pull cover plate 4 and the right push-pull cover plate 5 move in opposite directions is respectively arranged in the left cavity and the right cavity. The computer display on the movable plate can be pushed to the formed teacher desk in the opposite directions of the left and right push-pull cover plates for teaching by a teacher, so that the defect that the teaching can be carried out only by lowering the head of the computer display embedded in an operation platform of the teacher desk at present is overcome, and the spine and eyes of the teacher are effectively protected; the computer display in the embodiment is mainly used for displaying teaching contents for teachers to watch, and a host electrically connected with the computer display is not the invention point of the application, and meanwhile, the conventional technical means in the technical field are not described in detail;
in order to synchronously drive the moving plate to move up and down when the left and right push-pull cover plates are pushed, the driving device comprises a slide rod 20 respectively arranged in a left cavity and a right cavity, and a sliding sleeve 21 which is sleeved on the slide rod 20 and can slide left and right on the slide rod 20, when the slide rod 20 and the sliding sleeve 21 are designed, the relative friction force is small when the sliding sleeve slides on the slide rod 20, the sliding sleeve 21 in the left cavity and the right cavity is respectively and fixedly connected with a horizontal slide block 6 connected below the left push-pull cover plate 4 and the right push-pull cover plate 5, the rest of the sliding sleeve 21 is connected with the horizontal slide block 6, the left and right push-pull cover plates can be ensured to move to drive the sliding sleeve 21 to move on the slide rod, and particularly, when the left push-pull cover plate 4 and the right push-pull cover plate 5 move in opposite directions, the sliding sleeve 21 in the left cavity and the right cavity moves in opposite directions along the,
the left slider 12 and the right slider 13 are respectively connected with a pull rope 17, the end part of the pull rope 17 connected to the left slider 12 is fixedly connected with an upper pulley 18 on the left vertical partition plate 8 and the left vertical partition plate 8 in turn and a sliding sleeve 21 in the left cavity, the end part of the pull rope 17 connected to the right slider 13 is fixedly connected with an upper pulley 18 on the right vertical partition plate 9 and the right vertical partition plate 9 in turn and a sliding sleeve 21 in the right cavity, when the left push-pull cover plate 4 moves to the leftmost end and the sliding sleeve 21 in the left cavity slides to the leftmost end, the right push-pull cover plate 5 moves to the rightmost end, and when the sliding sleeve 21 in the right cavity slides to the rightmost end, the movable plate 14 is pulled to the highest position, and the computer display 16 is pushed to the upper part of the support.
One end of the stay cord is fixedly connected with a stay cord connecting ring 19 arranged on the sliding sleeve, the other end of the stay cord is connected with the left sliding block and the right sliding block, the pulley is used for changing the square pulling direction of the stay cord, and when the sliding sleeve moves on the sliding rod in the direction far away from the middle cavity, the movable plate can be pulled upwards through the stay cord, so that the computer display on the movable plate can move upwards to reach the top of the device for a teacher to use.
Specifically, as shown in fig. 2, when multimedia teaching needs to be performed, two hands push the left and right push-pull cover plates which are folded together in opposite directions, in the pushing process, the horizontal slider drives the sliding sleeves in the left and right cavities to slide on the sliding rod in a direction away from the middle cavity, when the sliding sleeves slide on the sliding rod, the pull rope is pulled to move left/right, the pull rope pulls the moving plate to move upwards, and the computer display on the moving plate reaches the top for a teacher to perform multimedia teaching. After the teaching is finished, the left and right push-pull cover plates are folded towards the middle, the sliding sleeve moves towards the end part close to the middle cavity at the moment, the movable plate falls down under the action of gravity, the computer display falls into the middle cavity for storage, and the situation that the computer is damaged in the process of nonuse is avoided.
Further, in order to ensure that the connection between the pulling rope and the sliding block is more stable, as shown in fig. 6, the left sliding blocks 12 connected to the left vertical guide rail group 10 are connected to each other through a left connecting rod 22, the right sliding blocks 13 movably connected to the right vertical guide rail group 11 are connected to each other through a right connecting rod 23, the end portion of the pulling rope 17 connected to the sliding sleeve 21 in the left cavity is fixedly connected to the middle portion of the left connecting rod 22, and the end portion of the pulling rope 17 connected to the sliding sleeve 21 in the right cavity is fixedly connected to the middle portion of the right connecting rod 23.
Further, in order to ensure that the moving plate can be stably fixed in the middle cavity when the left and right push-pull cover plates are opened, as shown in fig. 3, sliding grooves 24 which are symmetrical to each other and parallel to the central line of the sliding rod 20 are arranged on the sliding rod 20, a positioning groove 25 is arranged on one side of the sliding groove 24, a positioning device which is matched with the positioning groove 25 is arranged in the sliding sleeve 21, and when the moving plate 14 is pulled to the highest position, the positioning device is matched with the positioning groove 25 to fix the sliding sleeve 21 on the sliding rod 20.
As shown in fig. 4, a compression chamber 26 is arranged in the sliding sleeve 21, a through hole 28 is formed in the inner side surface of the sliding sleeve 21, the through hole 28 is communicated with the compression chamber 26, the positioning device includes a positioning pin 27, one end of which is located in the compression chamber 26 and the other end of which passes through the through hole 28, a stop block 29 is fixedly connected to the end of the positioning pin 27 located in the compression chamber 26, the diameter of the stop block 29 is larger than that of the through hole 28, the bottom of the stop block 29 and the bottom of the compression chamber 26 are connected through a compression spring 30, and when the positioning pin 27 moves to the position of the positioning slot 25, the compressed compression spring 30 pushes the positioning pin 27 to enable the end of the positioning pin 27 to enter. The sliding chute 24 arranged on the sliding rod can ensure that the sliding sleeve can not rotate in the moving process, so that the sliding sleeve can be more stable in moving, in particular, in the moving process, the positioning pin moves in the sliding chute 24, the possibility of rotation of the sliding sleeve is avoided, meanwhile, when the sliding sleeve slides to the left end/right end (far away from the middle cavity), when the positioning pin reaches the position of the positioning groove 25, the compressed spring pushes the positioning pin to the positioning groove, so that the positioning pin enters the positioning groove, the sliding sleeve is fixed on the sliding rod, further, the ascending moving plate is fixed, a computer display on the moving plate is stably used by a teacher, after the sliding sleeve is used, the positioning pin is pushed to the middle part, at the moment, a guide surface is arranged on the end surface of the positioning pin 27, which is close to the middle cavity, so that the positioning pin can be ensured to leave the positioning groove under the action of pushing force, meanwhile, the compression spring is compressed, and the guide surface arranged on the compression spring can ensure that the positioning pin smoothly leaves the positioning groove.
Further, in order to avoid when the stay cord breaks down, the movable plate cause the computer display to take place to damage at the in-process that descends, consequently as fig. 5 the bottom of movable plate 14 be equipped with the buffering and prevent falling device 3, this buffering prevents falling the device and can cushion the movable plate of whereabouts, avoids the computer display to be damaged at the in-process that falls down, specifically the buffering prevent falling device 3 include buffer board 301, fixed connection buffer board 301 bottom and with buffer board 301 vertically cushion column 302, the tip of buffer column 302 pass the buffer hole 304 that is equipped with on the horizontal partition 7, buffer column 302 between horizontal partition 7 and buffer board 301 on the cover be equipped with buffer spring 303.
The above embodiments are merely examples of the present invention, and do not limit the protection scope of the present invention, and all designs the same as or similar to the present invention belong to the protection scope of the present invention.

Claims (7)

1. The English teaching multimedia device is characterized by comprising parallel supporting plates (1), wherein the tops of the parallel supporting plates (1) are fixedly connected through parallel horizontal guide rails (2), a left push-pull cover plate (4) and a right push-pull cover plate (5) are arranged above the supporting plates (1), the left push-pull cover plate (4) and the right push-pull cover plate (5) are movably connected with the horizontal guide rails (2) through horizontal sliding blocks (6) movably connected to the horizontal guide rails (2), and the left push-pull cover plate (4) and the right push-pull cover plate (5) are gathered to the middle part to be closed;
the middle parts of the supporting plates (1) which are parallel to each other are fixedly connected through a horizontal clapboard (7) which is vertical to the supporting plates (1), the upper surface of the horizontal clapboard (7) is fixedly connected with a left vertical clapboard (8) and a right vertical clapboard (9) which are vertical to the horizontal clapboard (7), the top parts of the left vertical clapboard (8) and the right vertical clapboard (9) are fixedly connected with the horizontal guide rail (2), the left vertical clapboard (8) and the right vertical clapboard (9) divide a cavity formed at the upper part of the horizontal clapboard (7) into a left cavity, a middle cavity and a right cavity, a movable plate (14) moving up and down is arranged in the middle cavity, and two sides of the movable plate (14) are movably connected with a left vertical guide rail group (10) and a right vertical guide rail group (11) which are arranged on a left vertical partition plate (8) and a right vertical partition plate (9) on two sides of the middle cavity respectively through a left sliding block (12) and a right sliding block (13); a support frame (15) is fixedly arranged on the movable plate (14), and a computer display (16) used for English multimedia teaching is arranged on the support frame (15);
and the left cavity and the right cavity are respectively internally provided with a driving device which pushes a computer display (16) on the movable plate (14) in the middle cavity to the upper part of the supporting plate (1) when the left push-pull cover plate (4) and the right push-pull cover plate (5) move towards opposite directions.
2. The English teaching multimedia device according to claim 1, wherein the driving device comprises a slide rod (20) respectively arranged in the left cavity and the right cavity, a sliding sleeve (21) sleeved on the slide rod (20) and capable of sliding left and right on the slide rod (20), the sliding sleeve (21) in the left cavity and the right cavity is respectively fixedly connected with a horizontal slide block (6) connected below the left push-pull cover plate (4) and the right push-pull cover plate (5), and when the left push-pull cover plate (4) and the right push-pull cover plate (5) move in opposite directions, the sliding sleeve (21) in the left cavity and the right cavity moves in opposite directions along the slide rod (20), the left slide block (12) and the right slide block (13) are respectively connected with a pulling rope (17), and the end of the pulling rope (17) connected to the left slide block (12) sequentially passes through the sliding upper pulley (18) on the left vertical partition plate (8) and the sliding sleeve (21) in the left cavity The end part of a pull rope (17) connected to the right slider (13) is fixedly connected with an upper pulley (18) on the right vertical partition plate (9) and a sliding sleeve (21) in the right cavity in turn, when the left push-pull cover plate (4) moves to the leftmost end, the sliding sleeve (21) in the left cavity slides to the leftmost end, the right push-pull cover plate (5) moves to the rightmost end, and when the sliding sleeve (21) in the right cavity slides to the rightmost end, the movable plate (14) is pulled to the highest position, and the computer display (16) is pushed above the support plate (1).
3. The English teaching multimedia device according to claim 2, wherein the left sliders (12) connected to the left vertical guide rail set (10) are connected to each other through a left connecting rod (22), the right sliders (13) movably connected to the right vertical guide rail set (11) are connected to each other through a right connecting rod (23), the end of the pull rope (17) connected to the left inner sliding sleeve (21) is fixedly connected to the middle of the left connecting rod (22), and the end of the pull rope (17) connected to the right inner sliding sleeve (21) is fixedly connected to the middle of the right connecting rod (23).
4. English teaching multimedia device according to claim 2, wherein the sliding rod (20) is provided with sliding grooves (24) which are symmetrical to each other and parallel to the center line of the sliding rod (20), one side of the sliding groove (24) is provided with a positioning groove (25), the sliding sleeve (21) is provided with a positioning device which is matched with the positioning groove (25), and when the moving plate (14) is pulled to the highest position, the positioning device is matched with the positioning groove (25) to fix the sliding sleeve (21) on the sliding rod (20).
5. English teaching multimedia device according to claim 4, characterized in that said sliding sleeve (21) is provided with a compression chamber (26), a through hole (28) is arranged on the inner side surface of the sliding sleeve (21), the through hole (28) is communicated with the compression cavity (26), the positioning device comprises a positioning pin (27) with one end positioned in the compression cavity (26) and the other end penetrating through the through hole (28), a stop block (29) is fixedly connected with the end part of the positioning pin (27) positioned in the compression cavity (26), the diameter of the stop block (29) is larger than that of the through hole (28), the stop block (29) is connected with the bottom of the compression cavity (26) through a compression spring (30), and when the positioning pin (27) moves to the position of the positioning groove (25), the compressed compression spring (30) pushes the positioning pin (27) to enable the end part of the positioning pin (27) to enter the positioning groove (25) for positioning and fixing.
6. The English teaching multimedia device according to claim 1, wherein the bottom of the moving plate (14) is provided with a buffer anti-falling device (3), the buffer anti-falling device (3) comprises a buffer plate (301), a buffer column (302) is fixedly connected to the bottom of the buffer plate (301) and perpendicular to the buffer plate (301), the end of the buffer column (302) penetrates through a buffer hole (304) formed in the horizontal partition plate (7), and a buffer spring (303) is sleeved on the buffer column (302) between the horizontal partition plate (7) and the buffer plate (301).
7. English teaching multimedia device according to claim 5, characterized in that the positioning pin (27) has a guiding surface near the end surface of the middle cavity.
CN201920779736.1U 2019-05-27 2019-05-27 English teaching multimedia device Expired - Fee Related CN210696537U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920779736.1U CN210696537U (en) 2019-05-27 2019-05-27 English teaching multimedia device

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Application Number Priority Date Filing Date Title
CN201920779736.1U CN210696537U (en) 2019-05-27 2019-05-27 English teaching multimedia device

Publications (1)

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CN210696537U true CN210696537U (en) 2020-06-09

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CN201920779736.1U Expired - Fee Related CN210696537U (en) 2019-05-27 2019-05-27 English teaching multimedia device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111768661A (en) * 2020-08-03 2020-10-13 泉州台商投资区源平信息技术有限公司 Workstation is used in accounting teaching
CN111930178A (en) * 2020-08-03 2020-11-13 潍坊科技学院 Multi-protection multifunctional computer information screen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111768661A (en) * 2020-08-03 2020-10-13 泉州台商投资区源平信息技术有限公司 Workstation is used in accounting teaching
CN111930178A (en) * 2020-08-03 2020-11-13 潍坊科技学院 Multi-protection multifunctional computer information screen

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Granted publication date: 20200609

Termination date: 20210527