CN214523025U - Multimedia duplex blackboard for primary school english - Google Patents
Multimedia duplex blackboard for primary school english Download PDFInfo
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- CN214523025U CN214523025U CN202120268721.6U CN202120268721U CN214523025U CN 214523025 U CN214523025 U CN 214523025U CN 202120268721 U CN202120268721 U CN 202120268721U CN 214523025 U CN214523025 U CN 214523025U
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- blackboard
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000004140 cleaning Methods 0.000 claims description 55
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000005337 ground glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The application discloses multimedia double entry blackboard for primary school's english, including the fixed frame of rectangle, first blackboard, second blackboard, blank, drive structure, clean structure and the structure that supplies water, the first blackboard of fixedly connected with and blank are do not punishment in the inner wall both sides of the fixed frame of rectangle, the inner wall department sliding connection of the fixed frame of rectangle has the second blackboard, the lower surface department fixed mounting of the fixed frame of rectangle has the drive structure, the drive structure includes the fixed shell of rectangle, first drive servo motor, threaded rod, drive slider and connection slide. This device is rational in infrastructure, and convenient to use, this device have drive structure, can drive the second blackboard through drive structure and carry out the free movement, both can regard as the blackboard to use, also can expose the blank and use as multi-media blank, and the function is various, and this device has clean structure, can be comparatively convenient clean the surface to this device through clean structure, avoids the clear trouble of eminence of this device.
Description
Technical Field
The application relates to a compound blackboard, in particular to a multimedia compound blackboard for primary school English.
Background
The blackboard is not particularly a black board, is a plane which can be repeatedly written by chalk in the traditional sense, has a hard board surface and is mainly used for teaching, is generally made of wood boards or ground glass and the like, and can be written on by using specific writing materials such as chalk and the like. Mostly black, greenish black, white or beige.
Need use the blackboard in the primary school english teaching, traditional blackboard simple structure, the function is single, and multimedia teaching is more and more popularized in the present stage, and traditional blackboard can't satisfy multimedia teaching, can remain a large amount of chalk marks after the blackboard is used for a long time simultaneously, and traditional blackboard eraser is difficult clean to and blackboard eminence position is clean inconvenient. Therefore, a multimedia composite blackboard for primary school english is provided to solve the above problems.
Disclosure of Invention
A multimedia duplex blackboard for primary school English comprises a rectangular fixing frame, a first blackboard, a second blackboard, a white board, a driving structure, a cleaning structure and a water supply structure;
the inner wall both sides punishment of the fixed frame of rectangle do not fixedly connected with first blackboard and blank, the inner wall department sliding connection of the fixed frame of rectangle has the second blackboard, the lower surface department fixed mounting of the fixed frame of rectangle has the drive structure, the drive structure includes rectangle set casing, first drive servo motor, threaded rod, drive slider and connection slide, the lower surface department fixed connection of the fixed frame of rectangle has the rectangle set casing, fixed mounting has first drive servo motor in the inner chamber of rectangle set casing, sliding connection has the drive slider in the inner chamber of rectangle set casing, the upper surface department fixed connection of drive slider has the one end of connecting the slide, the other end of connecting the slide runs through the inner chamber upper wall of rectangle set casing and the fixed frame of rectangle and with the lower surface of second blackboard between fixed connection, sliding fit between the lower wall of connecting slide and the fixed frame of rectangle and the upper wall of rectangle set casing, the tail end of an output shaft of the first driving servo motor is fixedly connected with one end of a threaded rod, and the other end of the threaded rod extends to the side wall of the inner cavity of the rectangular fixed shell and is in running fit with the side wall of the inner cavity of the rectangular fixed shell;
the cleaning structure comprises a rectangular guide shell, a second driving servo motor, a second threaded rod, a lifting slide block, a connecting plate, a fixing plate, a sliding rod, a cleaning fixing plate, a cleaning sponge plate and a spiral spring, the rectangular guide shell is fixedly connected to the side walls of the two sides of the rectangular fixing frame, the second driving servo motor is fixedly mounted at the bottom side of the inner cavity of the two rectangular guide shells, one end of the second threaded rod is fixedly connected to the tail end of an output shaft of the second driving servo motor, the other end of the second threaded rod extends to the top wall of the inner cavity of the rectangular guide shell and is rotatably connected with the top wall of the inner cavity of the rectangular guide shell, the lifting slide block is slidably connected in the inner cavity of the rectangular guide shell, and one end of the connecting plate is fixedly connected to the side wall of the lifting slide block, the other end of connecting plate runs through the inner chamber lateral wall of rectangle direction shell and extends to outside the wall, sliding fit, two between the inner chamber lateral wall of connecting plate and rectangle direction shell fixedly connected with fixed plate between the connecting plate, clean fixed plate is total two, two the equal fixedly connected with slide bar of lateral wall department of clean fixed plate, four the slide bar all runs through fixed plate and with fixed plate between sliding connection, two the equal fixedly connected with coil spring's of both sides lateral wall department of clean fixed plate one end, coil spring's other end fixedly connected with fixed plate's lateral wall department, two the equal fixedly connected with of lateral wall department of clean fixed plate cleans the sponge board.
Further, the threaded rod penetrates through the driving slide block and is in threaded fit with the driving slide block.
Further, the lower surface of the rectangular fixing shell is fixedly connected with a fixing bin, and a placing groove is connected in an inner cavity of the fixing bin in a sliding mode.
Further, the first blackboard, the second blackboard and the white board are the same in size and shape.
Further, the second threaded rod penetrates through the lifting slide block and is in threaded fit with the lifting slide block.
Further, the second threaded rod penetrates through the lifting slide block and is in threaded fit with the lifting slide block.
Further, an inner cavity is formed in the cleaning fixing plate, and a plurality of fine holes distributed at equal intervals are formed in the inner cavity of the cleaning fixing plate.
Furthermore, two equal fixedly connected with coupling hose on the clean fixed plate, coupling hose and the inner chamber intercommunication of clean fixed plate, coupling hose's one end department fixedly connected with connector.
Further, the water supply structure includes a fixed cylinder, a water outlet pipe, a piston and a push rod, one end of the fixed cylinder is fixedly connected with the water outlet pipe, the inner cavity of the fixed cylinder is connected with the piston in a sliding mode, the side wall of the piston is fixedly connected with the push rod, and the push rod penetrates through the side wall of the fixed cylinder and extends out of the wall.
Furthermore, the outer surface of the water outlet pipe is fixedly connected with a rubber ring.
The beneficial effect of this application is: the application provides a multimedium double entry blackboard is used to primary school's english convenient to use is clean.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic perspective view of an embodiment of the present application;
FIG. 2 is a schematic diagram of a front view internal structure of an embodiment of the present application;
FIG. 3 is a schematic top view of an exemplary embodiment of the present application;
FIG. 4 is an enlarged view of a portion of the structure of FIG. 3 according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of a pore structure according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a rubber ring according to an embodiment of the present application.
In the figure: 1. the blackboard cleaning machine comprises a rectangular fixing frame, 2, a first blackboard, 3, a second blackboard, 4, a white board, 5, a first driving servo motor, 6, a threaded rod, 7, a driving slide block, 8, a connecting slide plate, 9, a rectangular guide shell, 10, a second driving servo motor, 11, a second threaded rod, 12, a lifting slide block, 13, a connecting plate, 14, a fixing plate, 15, a slide rod, 16, a cleaning fixing plate, 17, a cleaning sponge plate, 18, a spiral spring, 19, a threaded limiting sleeve, 20, a pore, 21, a connecting hose, 22, a connector, 23, a fixing cylinder, 24, a water outlet pipe, 25, a piston, 26, a push rod, 27, a rubber ring, 28, a fixing bin, 29, a placing groove, 30 and a rectangular fixing shell.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1-6, a multimedia composite blackboard for primary school english includes a rectangular fixing frame 1, a first blackboard 2, a second blackboard 3, a white board 4, a driving structure, a cleaning structure and a water supply structure;
the inner wall both sides department of the fixed frame 1 of rectangle is fixedly connected with first blackboard 2 and blank 4 respectively, the inner wall department sliding connection of the fixed frame 1 of rectangle has second blackboard 3, the lower surface department fixed mounting of the fixed frame 1 of rectangle has the drive structure, the drive structure includes rectangle set casing 30, first drive servo motor 5, threaded rod 6, drive slider 7 and connection slide 8, the lower surface department fixedly connected with rectangle set casing 30 of the fixed frame 1 of rectangle, fixed mounting has first drive servo motor 5 in the inner chamber of rectangle set casing 30, sliding connection has drive slider 7 in the inner chamber of rectangle set casing 30, the upper surface department fixedly connected with of drive slider 7 connects the one end of slide 8, the other end of connecting slide 8 runs through the inner chamber upper wall of rectangle set casing 30 and the fixed frame 1 of rectangle and with fixed connection between the lower surface of second blackboard 3, the connecting sliding plate 8 is in sliding fit with the lower wall of the rectangular fixed frame 1 and the upper wall of the rectangular fixed shell 30, one end of a threaded rod 6 is fixedly connected at the tail end of an output shaft of the first driving servo motor 5, and the other end of the threaded rod 6 extends to the side wall of the inner cavity of the rectangular fixed shell 30 and is in rotating fit with the side wall of the inner cavity of the rectangular fixed shell 30;
the cleaning structure comprises a rectangular guide shell 9, a second driving servo motor 10, a second threaded rod 11, a lifting slide block 12, a connecting plate 13, a fixing plate 14, a sliding rod 15, a cleaning fixing plate 16, a cleaning sponge plate 17 and a spiral spring 18, the rectangular guide shell 9 is fixedly connected to the side walls of two sides of the rectangular fixing frame 1, the second driving servo motor 10 is fixedly mounted at the bottom side of the inner cavity of the two rectangular guide shells 9, one end of the second threaded rod 11 is fixedly connected to the tail end of the output shaft of the second driving servo motor 10, the other end of the second threaded rod 11 extends to the top wall of the inner cavity of the rectangular guide shell 9 and is rotatably connected with the top wall of the inner cavity of the rectangular guide shell 9, the lifting slide block 12 is slidably connected to the inner cavity of the rectangular guide shell 9, the one end of lateral wall department fixedly connected with connecting plate 13 of lifting slide 12, the other end of connecting plate 13 runs through the inner chamber lateral wall of rectangle direction shell 9 and extends to outside the wall, sliding fit between the inner chamber lateral wall of connecting plate 13 and rectangle direction shell 9, two fixedly connected with fixed plate 14 between the connecting plate 13, clean fixed plate 16 is total two, two the equal fixedly connected with slide bar 15 of lateral wall department of clean fixed plate 16, four slide bar 15 all run through fixed plate 14 and with fixed plate 14 between sliding connection, two the equal fixedly connected with coil spring 18's of both sides lateral wall department of clean fixed plate 16 one end, coil spring 18's other end fixedly connected to fixed plate 14's lateral wall department, two clean fixed plate 16's the equal fixedly connected with of lateral wall department clean sponge board 17.
The threaded rod 6 penetrates through the driving slide block 7 and is in threaded fit with the driving slide block 7; the lower surface of the rectangular fixed shell 30 is fixedly connected with a fixed bin 28, and a placing groove 29 is connected in an inner cavity of the fixed bin 28 in a sliding manner; the first blackboard 2, the second blackboard 3 and the white board 4 are the same in size and shape; the second threaded rod 11 penetrates through the lifting slide block 12 and is in threaded fit with the lifting slide block 12; threaded grooves are formed in the outer walls of the four sliding rods 15, and threaded limiting sleeves 19 are connected to the four sliding rods 15 in a threaded mode; an inner cavity is formed in the cleaning fixing plate 16, and a plurality of fine holes 20 are formed in the inner cavity of the cleaning fixing plate 16 and are distributed at equal intervals; the two cleaning fixing plates 16 are fixedly connected with connecting hoses 21, the connecting hoses 21 are communicated with the inner cavities of the cleaning fixing plates 16, and one ends of the connecting hoses 21 are fixedly connected with connectors 22; the water supply structure comprises a fixed cylinder 23, a water outlet pipe 24, a piston 25 and a push rod 26, wherein the water outlet pipe 24 is fixedly connected to one end of the fixed cylinder 23, the piston 25 is connected to the inner cavity of the fixed cylinder 23 in a sliding manner, the push rod 26 is fixedly connected to the side wall of the piston 25, and the push rod 26 penetrates through the side wall of the fixed cylinder 23 and extends out of the wall; the outer surface of the water outlet pipe 24 is fixedly connected with a rubber ring 27.
When the blackboard cleaning device is used, electric elements appearing in the blackboard cleaning device are externally connected with a power supply and a control switch when in use, the device is in ordinary use, a cleaning fixing plate 16 is required to be separated from the surface of a blackboard, the blackboard is prevented from being blocked by the cleaning fixing plate 16 when moving, the sliding rod 15 is moved outwards to drive the cleaning fixing plate 16 to move, the cleaning fixing plate 16 is tightly attached to the side wall of a fixing plate 14, the cleaning fixing plate 16 and a cleaning sponge plate 17 are completely separated from the blackboard at the moment and cannot block the movement of the blackboard, the thread limiting sleeve 19 is tightly attached to the side wall of the fixing plate 14 by rotating the thread limiting sleeve 19, the position of the cleaning fixing plate 16 is fixed, in ordinary teaching, a teacher can teach on a first blackboard 2 and a second blackboard 3, when multimedia is required to be used, the threaded rod 6 is driven to rotate by the work of a first driving servo motor 5, the driving slide block 7 is driven to move by the rotation of the threaded rod 6, and then the connecting slide plate 8 is driven to move, so that the second blackboard 3 moves, and further the second blackboard 3 and the first blackboard 2 are overlapped, so that the white board 4 is exposed, so that the projector projects images to the surface of the white board 4 for multimedia teaching, after the teaching is finished, the second blackboard 3 is reset by the work of the first driving servo motor 5, the white board 4 is shielded, when the device is used for a period of time, the cleaning is needed, the push rod 26 is pulled firstly, so that the cleaning water is absorbed in the inner cavity of the fixed cylinder 23, the connector 22 is sleeved at the water outlet pipe 24, the connector 22 is tightly plugged and fixed by the rubber ring 27 at the outer wall of the water outlet pipe 24, the thread limit sleeve 19 is screwed, so that the thread limit sleeve 19 is completely separated from the fixed plate 14, and the spiral spring 18 is in a free telescopic state, the cleaning fixing plate 16 is moved to the outer surface of the second blackboard 3 through the resilience effect of the spiral spring 18, the cleaning sponge plate 17 is attached to the outer surface of the second blackboard 3, the second threaded rod 11 is driven to rotate through the synchronous work of the two second driving servo motors 10, the lifting slide block 12 is driven to move up and down through the rotation of the second threaded rod 11, the cleaning fixing plate 16 and the cleaning sponge plate 17 are driven to move up and down, the cleaning sponge plate 17 is cleaned through the up and down movement of the outer surface of the second blackboard 3, the device is cleaned, meanwhile, the push rod 26 can be pushed, the cleaning water in the inner cavity of the fixing cylinder 23 is conveyed into the inner cavity of the cleaning fixing plate 16, the cleaning water in the inner cavity of the cleaning fixing plate 16 permeates into the cleaning sponge plate 17 through the pores 20, the cleaning sponge plate 17 is soaked, and the cleaning effect of the cleaning sponge plate 17 is better, is suitable for popularization and application.
The application has the advantages that:
1. the device has a reasonable structure and convenient use, has a driving structure, can drive the second blackboard to move freely through the driving structure, can be used as a blackboard, can expose a white board to be used as a multimedia white board, and has various functions;
2. the device is provided with a cleaning structure, the outer surface of the device can be conveniently cleaned through the cleaning structure, the trouble of high-place cleaning of the device is avoided, manpower is saved, and the device is convenient and practical;
3. this device has the water supply structure, can supply water to clean structure through the water supply structure, and then makes the further promotion of clean effect, and water supply structure simple to operate is fit for using widely simultaneously.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a primary school is multi-media double entry blackboard for english which characterized in that: the blackboard cleaning device comprises a rectangular fixing frame (1), a first blackboard (2), a second blackboard (3), a white board (4), a driving structure, a cleaning structure and a water supply structure;
the inner wall both sides department of the fixed frame of rectangle (1) fixedly connected with first blackboard (2) and blank (4) respectively, the inner wall department sliding connection of the fixed frame of rectangle (1) has second blackboard (3), the lower surface department fixed mounting of the fixed frame of rectangle (1) has the drive structure, the drive structure includes rectangle set casing (30), first drive servo motor (5), threaded rod (6), drive slider (7) and connecting slide (8), the lower surface department fixed connection of the fixed frame of rectangle (1) has rectangle set casing (30), fixed mounting has first drive servo motor (5) in the inner chamber of rectangle set casing (30), sliding connection has drive slider (7) in the inner chamber of rectangle set casing (30), the upper surface department fixed connection of drive slider (7) has the one end of connecting slide (8), the other end of the connecting sliding plate (8) penetrates through the upper wall of the inner cavity of the rectangular fixed shell (30) and the rectangular fixed frame (1) and is fixedly connected with the lower surface of the second blackboard (3), the connecting sliding plate (8) is in sliding fit with the lower wall of the rectangular fixed frame (1) and the upper wall of the rectangular fixed shell (30), one end of a threaded rod (6) is fixedly connected at the tail end of an output shaft of the first driving servo motor (5), and the other end of the threaded rod (6) extends to the side wall of the inner cavity of the rectangular fixed shell (30) and is in rotating fit with the side wall of the inner cavity of the rectangular fixed shell (30);
both sides of the rectangular fixing frame (1) are fixedly provided with cleaning structures, each cleaning structure comprises a rectangular guide shell (9), a second driving servo motor (10), a second threaded rod (11), a lifting slide block (12), a connecting plate (13), a fixing plate (14), a sliding rod (15), a cleaning fixing plate (16), a cleaning sponge plate (17) and a spiral spring (18), both side walls of the rectangular fixing frame (1) are fixedly connected with the rectangular guide shells (9), both bottom sides of the inner cavities of the two rectangular guide shells (9) are fixedly provided with the second driving servo motor (10), the tail end of an output shaft of the second driving servo motor (10) is fixedly connected with one end of the second threaded rod (11), and the other end of the second threaded rod (11) extends to the top wall of the inner cavity of the rectangular guide shell (9) and is rotatably connected with the top wall of the inner cavity of the rectangular guide shell (9), the inner cavity of the rectangular guide shell (9) is connected with a lifting slide block (12) in a sliding manner, the side wall of the lifting slide block (12) is fixedly connected with one end of a connecting plate (13), the other end of the connecting plate (13) penetrates through the side wall of the inner cavity of the rectangular guide shell (9) and extends out of the inner wall, the connecting plate (13) is in sliding fit with the side wall of the inner cavity of the rectangular guide shell (9), a fixing plate (14) is fixedly connected between the two connecting plates (13), the cleaning fixing plates (16) are two in total, the side walls of the two cleaning fixing plates (16) are both fixedly connected with sliding rods (15), the four sliding rods (15) penetrate through the fixing plate (14) and are in sliding connection with the fixing plate (14), the side walls of the two cleaning fixing plates (16) are both fixedly connected with one end of a spiral spring (18), and the other end of the spiral spring (18) is fixedly connected to the side wall of the fixing plate (14), the side walls of the two cleaning fixing plates (16) are fixedly connected with cleaning sponge plates (17).
2. The multimedia duplex blackboard for primary school english according to claim 1, characterized in that: the threaded rod (6) penetrates through the driving sliding block (7) and is in threaded fit with the driving sliding block (7).
3. The multimedia duplex blackboard for primary school english according to claim 1, characterized in that: the lower surface of the rectangular fixed shell (30) is fixedly connected with a fixed bin (28), and a placing groove (29) is connected in an inner cavity of the fixed bin (28) in a sliding mode.
4. The multimedia duplex blackboard for primary school english according to claim 1, characterized in that: the first blackboard (2), the second blackboard (3) and the white board (4) are identical in size and shape.
5. The multimedia duplex blackboard for primary school english according to claim 1, characterized in that: the second threaded rod (11) penetrates through the lifting slide block (12) and is in threaded fit with the lifting slide block (12).
6. The multimedia duplex blackboard for primary school english according to claim 1, characterized in that: threaded grooves are formed in the outer walls of the four sliding rods (15), and threaded limiting sleeves (19) are connected to the four sliding rods (15) in a threaded mode.
7. The multimedia duplex blackboard for primary school english according to claim 1, characterized in that: the inner cavity is opened to the inside of clean fixed plate (16), open in the inner cavity of clean fixed plate (16) and be equipped with a plurality of equidistance pore (20) of arranging.
8. The multimedia duplex blackboard for primary school english according to claim 1, characterized in that: two equal fixedly connected with coupling hose (21) on clean fixed plate (16), coupling hose (21) and the inner chamber intercommunication of clean fixed plate (16), fixedly connected with connector (22) is located to the one end of coupling hose (21).
9. The multimedia duplex blackboard for primary school english according to claim 1, characterized in that: the water supply structure includes a fixed cylinder (23), a water outlet pipe (24), a piston (25) and a push rod (26), the one end of the fixed cylinder (23) is fixedly connected with the water outlet pipe (24), the inner cavity of the fixed cylinder (23) is connected with the piston (25) in a sliding mode, the side wall of the piston (25) is fixedly connected with the push rod (26), and the push rod (26) penetrates through the side wall of the fixed cylinder (23) and extends to the outside of the wall.
10. The multimedia duplex blackboard for primary school english according to claim 9, characterized in that: the outer surface of the water outlet pipe (24) is fixedly connected with a rubber ring (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120268721.6U CN214523025U (en) | 2021-02-01 | 2021-02-01 | Multimedia duplex blackboard for primary school english |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120268721.6U CN214523025U (en) | 2021-02-01 | 2021-02-01 | Multimedia duplex blackboard for primary school english |
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| Publication Number | Publication Date |
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| CN214523025U true CN214523025U (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120268721.6U Expired - Fee Related CN214523025U (en) | 2021-02-01 | 2021-02-01 | Multimedia duplex blackboard for primary school english |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114274697A (en) * | 2022-01-10 | 2022-04-05 | 陈小雨 | Combined electronic whiteboard blackboard |
-
2021
- 2021-02-01 CN CN202120268721.6U patent/CN214523025U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114274697A (en) * | 2022-01-10 | 2022-04-05 | 陈小雨 | Combined electronic whiteboard blackboard |
| CN114274697B (en) * | 2022-01-10 | 2023-10-27 | 河南平显科技有限公司 | Combined electronic whiteboard blackboard |
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